Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 17794:3514ee402842
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Reviewed-by: dholmes, kvn
Contributed-by: martin.doerr@sap.com
author | goetz |
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date | Thu, 16 Jan 2014 14:25:51 +0100 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, 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" |
6162 | 26 #include "classfile/altHashing.hpp" |
1972 | 27 #include "classfile/javaClasses.hpp" |
28 #include "classfile/symbolTable.hpp" | |
29 #include "classfile/vmSymbols.hpp" | |
30 #include "code/debugInfo.hpp" | |
31 #include "code/pcDesc.hpp" | |
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32 #include "compiler/compilerOracle.hpp" |
1972 | 33 #include "interpreter/interpreter.hpp" |
34 #include "memory/oopFactory.hpp" | |
35 #include "memory/resourceArea.hpp" | |
36 #include "memory/universe.inline.hpp" | |
3938 | 37 #include "oops/fieldStreams.hpp" |
1972 | 38 #include "oops/instanceKlass.hpp" |
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39 #include "oops/instanceMirrorKlass.hpp" |
1972 | 40 #include "oops/klass.hpp" |
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41 #include "oops/method.hpp" |
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42 #include "oops/symbol.hpp" |
1972 | 43 #include "oops/typeArrayOop.hpp" |
44 #include "runtime/fieldDescriptor.hpp" | |
45 #include "runtime/handles.inline.hpp" | |
46 #include "runtime/interfaceSupport.hpp" | |
47 #include "runtime/java.hpp" | |
48 #include "runtime/javaCalls.hpp" | |
49 #include "runtime/safepoint.hpp" | |
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50 #include "runtime/thread.inline.hpp" |
1972 | 51 #include "runtime/vframe.hpp" |
52 #include "utilities/preserveException.hpp" | |
0 | 53 |
3938 | 54 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
55 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
56 | |
57 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
58 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
59 | |
60 InjectedField JavaClasses::_injected_fields[] = { | |
61 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
62 }; | |
63 | |
64 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
65 return _injected_fields[id].compute_offset(); | |
66 } | |
67 | |
68 | |
69 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
70 *field_count = 0; | |
71 | |
72 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
73 if (sid == vmSymbols::NO_SID) { | |
74 // Only well known classes can inject fields | |
75 return NULL; | |
76 } | |
77 | |
78 int count = 0; | |
79 int start = -1; | |
80 | |
81 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
82 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
83 count++; \ | |
84 if (start == -1) start = klass##_##name##_enum; \ | |
85 } | |
86 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
87 #undef LOOKUP_INJECTED_FIELD | |
88 | |
89 if (start != -1) { | |
90 *field_count = count; | |
91 return _injected_fields + start; | |
92 } | |
93 return NULL; | |
94 } | |
95 | |
96 | |
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97 static bool find_field(InstanceKlass* ik, |
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98 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 99 fieldDescriptor* fd, |
100 bool allow_super = false) { | |
101 if (allow_super) | |
102 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
103 else | |
104 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
105 } | |
106 | |
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107 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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108 static void |
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109 compute_offset(int &dest_offset, |
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110 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 111 bool allow_super = false) { |
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112 fieldDescriptor fd; |
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113 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 114 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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115 ResourceMark rm; |
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116 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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117 #ifndef PRODUCT |
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118 klass_oop->print(); |
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119 tty->print_cr("all fields:"); |
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120 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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121 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
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122 } |
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123 #endif //PRODUCT |
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124 fatal("Invalid layout of preloaded class"); |
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125 } |
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126 dest_offset = fd.offset(); |
0 | 127 } |
128 | |
129 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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130 static void |
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131 compute_optional_offset(int& dest_offset, |
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132 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 133 bool allow_super = false) { |
132
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134 fieldDescriptor fd; |
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135 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 136 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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137 dest_offset = fd.offset(); |
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138 } |
0 | 139 } |
140 | |
710 | 141 |
6057 | 142 int java_lang_String::value_offset = 0; |
143 int java_lang_String::offset_offset = 0; | |
144 int java_lang_String::count_offset = 0; | |
145 int java_lang_String::hash_offset = 0; | |
146 | |
147 bool java_lang_String::initialized = false; | |
148 | |
149 void java_lang_String::compute_offsets() { | |
150 assert(!initialized, "offsets should be initialized only once"); | |
151 | |
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152 Klass* k = SystemDictionary::String_klass(); |
6057 | 153 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); |
154 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
155 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
156 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
157 | |
158 initialized = true; | |
159 } | |
160 | |
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161 Handle java_lang_String::basic_create(int length, TRAPS) { |
6057 | 162 assert(initialized, "Must be initialized"); |
0 | 163 // Create the String object first, so there's a chance that the String |
164 // and the char array it points to end up in the same cache line. | |
165 oop obj; | |
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166 obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 167 |
168 // Create the char array. The String object must be handlized here | |
169 // because GC can happen as a result of the allocation attempt. | |
170 Handle h_obj(THREAD, obj); | |
171 typeArrayOop buffer; | |
172 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
173 | |
174 // Point the String at the char array | |
175 obj = h_obj(); | |
176 set_value(obj, buffer); | |
177 // No need to zero the offset, allocation zero'ed the entire String object | |
178 assert(offset(obj) == 0, "initial String offset should be zero"); | |
179 //set_offset(obj, 0); | |
180 set_count(obj, length); | |
181 | |
182 return h_obj; | |
183 } | |
184 | |
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185 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { |
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186 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 187 typeArrayOop buffer = value(h_obj()); |
188 for (int index = 0; index < length; index++) { | |
189 buffer->char_at_put(index, unicode[index]); | |
190 } | |
191 return h_obj; | |
192 } | |
193 | |
194 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
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195 Handle h_obj = create_from_unicode(unicode, length, CHECK_0); |
0 | 196 return h_obj(); |
197 } | |
198 | |
199 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
200 if (utf8_str == NULL) { | |
201 return Handle(); | |
202 } | |
203 int length = UTF8::unicode_length(utf8_str); | |
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204 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 205 if (length > 0) { |
206 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
207 } | |
208 return h_obj; | |
209 } | |
210 | |
211 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
212 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
213 return h_obj(); | |
214 } | |
215 | |
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216 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 217 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
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218 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 219 if (length > 0) { |
220 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
221 } | |
222 return h_obj; | |
223 } | |
224 | |
225 // Converts a C string to a Java String based on current encoding | |
226 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
227 assert(str != NULL, "bad arguments"); | |
228 | |
229 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
230 static to_java_string_fn_t _to_java_string_fn = NULL; | |
231 | |
232 if (_to_java_string_fn == NULL) { | |
233 void *lib_handle = os::native_java_library(); | |
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234 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 235 if (_to_java_string_fn == NULL) { |
236 fatal("NewStringPlatform missing"); | |
237 } | |
238 } | |
239 | |
240 jstring js = NULL; | |
241 { JavaThread* thread = (JavaThread*)THREAD; | |
242 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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243 HandleMark hm(thread); |
0 | 244 ThreadToNativeFromVM ttn(thread); |
245 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
246 } | |
247 return Handle(THREAD, JNIHandles::resolve(js)); | |
248 } | |
249 | |
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250 // Converts a Java String to a native C string that can be used for |
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251 // native OS calls. |
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252 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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253 |
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254 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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255 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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256 |
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257 if (_to_platform_string_fn == NULL) { |
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258 void *lib_handle = os::native_java_library(); |
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259 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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260 if (_to_platform_string_fn == NULL) { |
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261 fatal("GetStringPlatformChars missing"); |
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262 } |
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263 } |
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264 |
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265 char *native_platform_string; |
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266 { JavaThread* thread = (JavaThread*)THREAD; |
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267 assert(thread->is_Java_thread(), "must be java thread"); |
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268 JNIEnv *env = thread->jni_environment(); |
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269 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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270 bool is_copy; |
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271 HandleMark hm(thread); |
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272 ThreadToNativeFromVM ttn(thread); |
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273 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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274 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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275 JNIHandles::destroy_local(js); |
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276 } |
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277 return native_platform_string; |
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278 } |
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279 |
0 | 280 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
281 oop obj = java_string(); | |
282 // Typical usage is to convert all '/' to '.' in string. | |
283 typeArrayOop value = java_lang_String::value(obj); | |
284 int offset = java_lang_String::offset(obj); | |
285 int length = java_lang_String::length(obj); | |
286 | |
287 // First check if any from_char exist | |
288 int index; // Declared outside, used later | |
289 for (index = 0; index < length; index++) { | |
290 if (value->char_at(index + offset) == from_char) { | |
291 break; | |
292 } | |
293 } | |
294 if (index == length) { | |
295 // No from_char, so do not copy. | |
296 return java_string; | |
297 } | |
298 | |
299 // Create new UNICODE buffer. Must handlize value because GC | |
300 // may happen during String and char array creation. | |
301 typeArrayHandle h_value(THREAD, value); | |
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302 Handle string = basic_create(length, CHECK_NH); |
0 | 303 |
304 typeArrayOop from_buffer = h_value(); | |
305 typeArrayOop to_buffer = java_lang_String::value(string()); | |
306 | |
307 // Copy contents | |
308 for (index = 0; index < length; index++) { | |
309 jchar c = from_buffer->char_at(index + offset); | |
310 if (c == from_char) { | |
311 c = to_char; | |
312 } | |
313 to_buffer->char_at_put(index, c); | |
314 } | |
315 return string; | |
316 } | |
317 | |
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318 jchar* java_lang_String::as_unicode_string(oop java_string, int& length, TRAPS) { |
0 | 319 typeArrayOop value = java_lang_String::value(java_string); |
320 int offset = java_lang_String::offset(java_string); | |
321 length = java_lang_String::length(java_string); | |
322 | |
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323 jchar* result = NEW_RESOURCE_ARRAY_RETURN_NULL(jchar, length); |
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324 if (result != NULL) { |
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325 for (int index = 0; index < length; index++) { |
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326 result[index] = value->char_at(index + offset); |
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327 } |
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328 } else { |
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329 THROW_MSG_0(vmSymbols::java_lang_OutOfMemoryError(), "could not allocate Unicode string"); |
0 | 330 } |
331 return result; | |
332 } | |
333 | |
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334 unsigned int java_lang_String::hash_code(oop java_string) { |
6162 | 335 int length = java_lang_String::length(java_string); |
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336 // Zero length string will hash to zero with String.hashCode() function. |
6162 | 337 if (length == 0) return 0; |
338 | |
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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 return java_lang_String::hash_code(value->char_at_addr(offset), length); |
6162 | 342 } |
343 | |
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344 char* java_lang_String::as_quoted_ascii(oop java_string) { |
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345 typeArrayOop value = java_lang_String::value(java_string); |
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346 int offset = java_lang_String::offset(java_string); |
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347 int length = java_lang_String::length(java_string); |
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348 |
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349 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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350 if (base == NULL) return NULL; |
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351 |
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352 int result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
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353 char* result = NEW_RESOURCE_ARRAY(char, result_length); |
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354 UNICODE::as_quoted_ascii(base, length, result, result_length); |
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355 assert(result_length >= length + 1, "must not be shorter"); |
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356 assert(result_length == (int)strlen(result) + 1, "must match"); |
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357 return result; |
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|
358 } |
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359 |
6162 | 360 unsigned int java_lang_String::hash_string(oop java_string) { |
2418
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361 int length = java_lang_String::length(java_string); |
6162 | 362 // Zero length string doesn't hash necessarily hash to zero. |
363 if (length == 0) { | |
364 return StringTable::hash_string(NULL, 0); | |
365 } | |
366 | |
367 typeArrayOop value = java_lang_String::value(java_string); | |
368 int offset = java_lang_String::offset(java_string); | |
369 return StringTable::hash_string(value->char_at_addr(offset), length); | |
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|
370 } |
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|
371 |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
372 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 373 oop obj = java_string(); |
374 typeArrayOop value = java_lang_String::value(obj); | |
375 int offset = java_lang_String::offset(obj); | |
376 int length = java_lang_String::length(obj); | |
949
489a4f8dcd0f
6865583: Verbose CIPrintMethodCodes asserts when ldc an empty String
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931
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changeset
|
377 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
378 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
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379 return sym; |
0 | 380 } |
381 | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
382 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
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383 typeArrayOop value = java_lang_String::value(java_string); |
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6814659: separable cleanups and subroutines for 6655638
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384 int offset = java_lang_String::offset(java_string); |
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6814659: separable cleanups and subroutines for 6655638
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385 int length = java_lang_String::length(java_string); |
949
489a4f8dcd0f
6865583: Verbose CIPrintMethodCodes asserts when ldc an empty String
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931
diff
changeset
|
386 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
665
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6814659: separable cleanups and subroutines for 6655638
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387 return SymbolTable::probe_unicode(base, length); |
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6814659: separable cleanups and subroutines for 6655638
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diff
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|
388 } |
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|
389 |
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6814659: separable cleanups and subroutines for 6655638
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|
390 |
0 | 391 int java_lang_String::utf8_length(oop java_string) { |
392 typeArrayOop value = java_lang_String::value(java_string); | |
393 int offset = java_lang_String::offset(java_string); | |
394 int length = java_lang_String::length(java_string); | |
395 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
396 return UNICODE::utf8_length(position, length); | |
397 } | |
398 | |
399 char* java_lang_String::as_utf8_string(oop java_string) { | |
400 typeArrayOop value = java_lang_String::value(java_string); | |
401 int offset = java_lang_String::offset(java_string); | |
402 int length = java_lang_String::length(java_string); | |
403 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
404 return UNICODE::as_utf8(position, length); | |
405 } | |
406 | |
1989
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
407 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
408 typeArrayOop value = java_lang_String::value(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
409 int offset = java_lang_String::offset(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
410 int length = java_lang_String::length(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
411 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
412 return UNICODE::as_utf8(position, length, buf, buflen); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
413 } |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
414 |
0 | 415 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
416 typeArrayOop value = java_lang_String::value(java_string); | |
417 int offset = java_lang_String::offset(java_string); | |
418 int length = java_lang_String::length(java_string); | |
419 assert(start + len <= length, "just checking"); | |
420 jchar* position = value->char_at_addr(offset + start); | |
421 return UNICODE::as_utf8(position, len); | |
422 } | |
423 | |
424 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
6867 | 425 assert(java_string->klass() == SystemDictionary::String_klass(), |
0 | 426 "must be java_string"); |
427 typeArrayOop value = java_lang_String::value(java_string); | |
428 int offset = java_lang_String::offset(java_string); | |
429 int length = java_lang_String::length(java_string); | |
430 if (length != len) { | |
431 return false; | |
432 } | |
433 for (int i = 0; i < len; i++) { | |
434 if (value->char_at(i + offset) != chars[i]) { | |
435 return false; | |
436 } | |
437 } | |
438 return true; | |
439 } | |
440 | |
12275
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
441 bool java_lang_String::equals(oop str1, oop str2) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
442 assert(str1->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
443 "must be java String"); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
444 assert(str2->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
445 "must be java String"); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
446 typeArrayOop value1 = java_lang_String::value(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
447 int offset1 = java_lang_String::offset(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
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diff
changeset
|
448 int length1 = java_lang_String::length(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
449 typeArrayOop value2 = java_lang_String::value(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
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diff
changeset
|
450 int offset2 = java_lang_String::offset(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
12010
diff
changeset
|
451 int length2 = java_lang_String::length(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
452 |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
453 if (length1 != length2) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
454 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
455 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
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12010
diff
changeset
|
456 for (int i = 0; i < length1; i++) { |
63147986a428
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parents:
12010
diff
changeset
|
457 if (value1->char_at(i + offset1) != value2->char_at(i + offset2)) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
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diff
changeset
|
458 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
12010
diff
changeset
|
459 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
460 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
461 return true; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
462 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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12010
diff
changeset
|
463 |
0 | 464 void java_lang_String::print(Handle java_string, outputStream* st) { |
465 oop obj = java_string(); | |
1142 | 466 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 467 typeArrayOop value = java_lang_String::value(obj); |
468 int offset = java_lang_String::offset(obj); | |
469 int length = java_lang_String::length(obj); | |
470 | |
471 int end = MIN2(length, 100); | |
472 if (value == NULL) { | |
473 // This can happen if, e.g., printing a String | |
474 // object before its initializer has been called | |
475 st->print_cr("NULL"); | |
476 } else { | |
477 st->print("\""); | |
478 for (int index = 0; index < length; index++) { | |
479 st->print("%c", value->char_at(index + offset)); | |
480 } | |
481 st->print("\""); | |
482 } | |
483 } | |
484 | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
485 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
486 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
487 assert(mirror.not_null() && fd->is_static(), "just checking"); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
488 if (fd->has_initial_value()) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
489 BasicType t = fd->field_type(); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
490 switch (t) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
491 case T_BYTE: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
492 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
493 break; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
494 case T_BOOLEAN: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
495 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
496 break; |
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7017732: move static fields into Class to prepare for perm gen removal
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497 case T_CHAR: |
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498 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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499 break; |
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500 case T_SHORT: |
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501 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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502 break; |
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503 case T_INT: |
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504 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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505 break; |
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506 case T_FLOAT: |
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507 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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508 break; |
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509 case T_DOUBLE: |
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510 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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511 break; |
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512 case T_LONG: |
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513 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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514 break; |
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515 case T_OBJECT: |
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516 { |
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517 #ifdef ASSERT |
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518 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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519 assert(fd->signature() == sym, "just checking"); |
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520 #endif |
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521 oop string = fd->string_initial_value(CHECK); |
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522 mirror()->obj_field_put(fd->offset(), string); |
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523 } |
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524 break; |
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525 default: |
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526 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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527 "Illegal ConstantValue attribute in class file"); |
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528 } |
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529 } |
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530 } |
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531 |
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532 |
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533 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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534 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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535 |
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536 // If the offset was read from the shared archive, it was fixed up already |
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537 if (!k->is_shared()) { |
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538 if (k->oop_is_instance()) { |
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539 // During bootstrap, java.lang.Class wasn't loaded so static field |
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540 // offsets were computed without the size added it. Go back and |
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541 // update all the static field offsets to included the size. |
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542 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
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543 if (fs.access_flags().is_static()) { |
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544 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
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545 fs.set_offset(real_offset); |
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546 } |
3938 | 547 } |
548 } | |
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549 } |
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550 create_mirror(k, Handle(NULL), CHECK); |
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551 } |
0 | 552 |
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553 oop java_lang_Class::create_mirror(KlassHandle k, Handle protection_domain, TRAPS) { |
0 | 554 assert(k->java_mirror() == NULL, "should only assign mirror once"); |
555 // Use this moment of initialization to cache modifier_flags also, | |
556 // to support Class.getModifiers(). Instance classes recalculate | |
557 // the cached flags after the class file is parsed, but before the | |
558 // class is put into the system dictionary. | |
559 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
560 k->set_modifier_flags(computed_modifiers); | |
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561 // Class_klass has to be loaded because it is used to allocate |
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562 // the mirror. |
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563 if (SystemDictionary::Class_klass_loaded()) { |
0 | 564 // Allocate mirror (java.lang.Class instance) |
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565 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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|
566 |
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567 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
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568 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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569 |
0 | 570 // It might also have a component mirror. This mirror must already exist. |
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571 if (k->oop_is_array()) { |
0 | 572 Handle comp_mirror; |
573 if (k->oop_is_typeArray()) { | |
6831
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8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
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574 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
0 | 575 comp_mirror = Universe::java_mirror(type); |
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576 } else { |
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577 assert(k->oop_is_objArray(), "Must be"); |
6831
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8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
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578 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
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579 assert(element_klass != NULL, "Must have an element klass"); |
6983 | 580 comp_mirror = element_klass->java_mirror(); |
0 | 581 } |
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582 assert(comp_mirror.not_null(), "must have a mirror"); |
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583 |
0 | 584 // Two-way link between the array klass and its component mirror: |
6831
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585 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
6725
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586 set_array_klass(comp_mirror(), k()); |
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587 } else { |
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588 assert(k->oop_is_instance(), "Must be"); |
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589 |
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590 // Allocate a simple java object for a lock. |
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591 // This needs to be a java object because during class initialization |
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592 // it can be held across a java call. |
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593 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK_NULL); |
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594 set_init_lock(mirror(), r); |
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595 |
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596 // Set protection domain also |
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597 set_protection_domain(mirror(), protection_domain()); |
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598 |
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599 // Initialize static fields |
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600 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 601 } |
602 return mirror(); | |
603 } else { | |
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604 if (fixup_mirror_list() == NULL) { |
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605 GrowableArray<Klass*>* list = |
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606 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
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607 set_fixup_mirror_list(list); |
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608 } |
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609 fixup_mirror_list()->push(k()); |
0 | 610 return NULL; |
611 } | |
612 } | |
613 | |
614 | |
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615 |
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616 int java_lang_Class::oop_size(oop java_class) { |
3938 | 617 assert(_oop_size_offset != 0, "must be set"); |
618 return java_class->int_field(_oop_size_offset); | |
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619 } |
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620 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 621 assert(_oop_size_offset != 0, "must be set"); |
622 java_class->int_field_put(_oop_size_offset, size); | |
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623 } |
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624 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 625 assert(_static_oop_field_count_offset != 0, "must be set"); |
626 return java_class->int_field(_static_oop_field_count_offset); | |
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627 } |
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628 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 629 assert(_static_oop_field_count_offset != 0, "must be set"); |
630 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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631 } |
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632 |
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633 oop java_lang_Class::protection_domain(oop java_class) { |
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634 assert(_protection_domain_offset != 0, "must be set"); |
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635 return java_class->obj_field(_protection_domain_offset); |
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636 } |
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637 void java_lang_Class::set_protection_domain(oop java_class, oop pd) { |
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638 assert(_protection_domain_offset != 0, "must be set"); |
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639 java_class->obj_field_put(_protection_domain_offset, pd); |
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640 } |
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641 |
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642 oop java_lang_Class::init_lock(oop java_class) { |
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643 assert(_init_lock_offset != 0, "must be set"); |
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644 return java_class->obj_field(_init_lock_offset); |
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645 } |
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646 void java_lang_Class::set_init_lock(oop java_class, oop init_lock) { |
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647 assert(_init_lock_offset != 0, "must be set"); |
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648 java_class->obj_field_put(_init_lock_offset, init_lock); |
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649 } |
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650 |
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651 objArrayOop java_lang_Class::signers(oop java_class) { |
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652 assert(_signers_offset != 0, "must be set"); |
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653 return (objArrayOop)java_class->obj_field(_signers_offset); |
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654 } |
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655 void java_lang_Class::set_signers(oop java_class, objArrayOop signers) { |
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656 assert(_signers_offset != 0, "must be set"); |
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657 java_class->obj_field_put(_signers_offset, (oop)signers); |
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658 } |
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659 |
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660 |
0 | 661 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
662 // This should be improved by adding a field at the Java level or by | |
663 // introducing a new VM klass (see comment in ClassFileParser) | |
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664 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
0 | 665 if (type != T_VOID) { |
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666 Klass* aklass = Universe::typeArrayKlassObj(type); |
0 | 667 assert(aklass != NULL, "correct bootstrap"); |
668 set_array_klass(java_class, aklass); | |
669 } | |
4009 | 670 #ifdef ASSERT |
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671 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 672 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
673 #endif | |
0 | 674 return java_class; |
675 } | |
676 | |
677 | |
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678 Klass* java_lang_Class::as_Klass(oop java_class) { |
0 | 679 //%note memory_2 |
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680 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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681 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
0 | 682 assert(k == NULL || k->is_klass(), "type check"); |
683 return k; | |
684 } | |
685 | |
686 | |
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687 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
4009 | 688 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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689 java_class->metadata_field_put(_klass_offset, klass); |
4009 | 690 } |
691 | |
692 | |
665
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693 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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694 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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695 Symbol* name = NULL; |
665
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696 bool is_instance = false; |
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697 if (is_primitive(java_class)) { |
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698 name = vmSymbols::type_signature(primitive_type(java_class)); |
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699 } else { |
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700 Klass* k = as_Klass(java_class); |
6983 | 701 is_instance = k->oop_is_instance(); |
702 name = k->name(); | |
665
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703 } |
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704 if (name == NULL) { |
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705 st->print("<null>"); |
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706 return; |
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707 } |
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708 if (is_instance) st->print("L"); |
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709 st->write((char*) name->base(), (int) name->utf8_length()); |
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710 if (is_instance) st->print(";"); |
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711 } |
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712 |
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713 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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714 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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715 Symbol* name; |
665
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716 if (is_primitive(java_class)) { |
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717 name = vmSymbols::type_signature(primitive_type(java_class)); |
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718 // Because this can create a new symbol, the caller has to decrement |
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719 // the refcount, so make adjustment here and below for symbols returned |
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720 // that are not created or incremented due to a successful lookup. |
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721 name->increment_refcount(); |
665
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722 } else { |
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723 Klass* k = as_Klass(java_class); |
6983 | 724 if (!k->oop_is_instance()) { |
725 name = k->name(); | |
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726 name->increment_refcount(); |
665
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727 } else { |
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728 ResourceMark rm; |
6983 | 729 const char* sigstr = k->signature_name(); |
665
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730 int siglen = (int) strlen(sigstr); |
2177
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731 if (!intern_if_not_found) { |
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732 name = SymbolTable::probe(sigstr, siglen); |
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733 } else { |
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734 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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735 } |
665
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736 } |
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737 } |
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738 return name; |
665
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739 } |
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740 |
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741 |
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742 Klass* java_lang_Class::array_klass(oop java_class) { |
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743 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
6983 | 744 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
0 | 745 return k; |
746 } | |
747 | |
748 | |
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749 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
6983 | 750 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
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751 java_class->metadata_field_put(_array_klass_offset, klass); |
0 | 752 } |
753 | |
754 | |
755 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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756 // should assert: |
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757 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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758 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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759 |
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760 #ifdef ASSERT |
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761 if (is_primitive) { |
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762 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
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763 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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764 "Should be either the T_VOID primitive or a java primitive"); |
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765 } |
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766 #endif |
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767 |
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768 return is_primitive; |
0 | 769 } |
770 | |
771 | |
772 BasicType java_lang_Class::primitive_type(oop java_class) { | |
773 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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774 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
0 | 775 BasicType type = T_VOID; |
776 if (ak != NULL) { | |
777 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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778 type = ArrayKlass::cast(ak)->element_type(); |
0 | 779 } else { |
780 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
781 } | |
782 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
783 return type; | |
784 } | |
785 | |
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786 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
665
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787 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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788 if (is_primitive(java_class)) { |
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789 if (reference_klass != NULL) |
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790 (*reference_klass) = NULL; |
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791 return primitive_type(java_class); |
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792 } else { |
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793 if (reference_klass != NULL) |
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794 (*reference_klass) = as_Klass(java_class); |
665
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795 return T_OBJECT; |
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796 } |
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797 } |
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798 |
0 | 799 |
800 oop java_lang_Class::primitive_mirror(BasicType t) { | |
801 oop mirror = Universe::java_mirror(t); | |
1142 | 802 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 803 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
804 return mirror; | |
805 } | |
806 | |
807 bool java_lang_Class::offsets_computed = false; | |
808 int java_lang_Class::classRedefinedCount_offset = -1; | |
809 | |
810 void java_lang_Class::compute_offsets() { | |
811 assert(!offsets_computed, "offsets should be initialized only once"); | |
812 offsets_computed = true; | |
813 | |
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814 Klass* klass_oop = SystemDictionary::Class_klass(); |
0 | 815 // The classRedefinedCount field is only present starting in 1.5, |
816 // so don't go fatal. | |
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817 compute_optional_offset(classRedefinedCount_offset, |
3938 | 818 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
819 | |
820 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 821 } |
822 | |
823 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
824 if (!JDK_Version::is_gte_jdk15x_version() | |
825 || classRedefinedCount_offset == -1) { | |
826 // The classRedefinedCount field is only present starting in 1.5. | |
827 // If we don't have an offset for it then just return -1 as a marker. | |
828 return -1; | |
829 } | |
830 | |
831 return the_class_mirror->int_field(classRedefinedCount_offset); | |
832 } | |
833 | |
834 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
835 if (!JDK_Version::is_gte_jdk15x_version() | |
836 || classRedefinedCount_offset == -1) { | |
837 // The classRedefinedCount field is only present starting in 1.5. | |
838 // If we don't have an offset for it then nothing to set. | |
839 return; | |
840 } | |
841 | |
842 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
843 } | |
844 | |
845 | |
846 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
847 // platform thread structure, and a eetop offset which was used for thread | |
848 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
849 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
850 // instead of the privateInfo_offset. | |
851 // | |
852 // Note: The stackSize field is only present starting in 1.4. | |
853 | |
854 int java_lang_Thread::_name_offset = 0; | |
855 int java_lang_Thread::_group_offset = 0; | |
856 int java_lang_Thread::_contextClassLoader_offset = 0; | |
857 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
858 int java_lang_Thread::_priority_offset = 0; | |
859 int java_lang_Thread::_eetop_offset = 0; | |
860 int java_lang_Thread::_daemon_offset = 0; | |
861 int java_lang_Thread::_stillborn_offset = 0; | |
862 int java_lang_Thread::_stackSize_offset = 0; | |
863 int java_lang_Thread::_tid_offset = 0; | |
864 int java_lang_Thread::_thread_status_offset = 0; | |
865 int java_lang_Thread::_park_blocker_offset = 0; | |
866 int java_lang_Thread::_park_event_offset = 0 ; | |
867 | |
868 | |
869 void java_lang_Thread::compute_offsets() { | |
870 assert(_group_offset == 0, "offsets should be initialized only once"); | |
871 | |
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872 Klass* k = SystemDictionary::Thread_klass(); |
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873 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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874 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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875 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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876 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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877 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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878 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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879 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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880 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 881 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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882 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 883 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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884 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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885 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 886 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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887 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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888 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 889 vmSymbols::long_signature()); |
890 } | |
891 | |
892 | |
893 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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894 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 895 } |
896 | |
897 | |
898 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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899 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 900 } |
901 | |
902 | |
903 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
904 oop name = java_thread->obj_field(_name_offset); | |
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905 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
0 | 906 return typeArrayOop(name); |
907 } | |
908 | |
909 | |
910 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
911 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
912 java_thread->obj_field_put(_name_offset, name); | |
913 } | |
914 | |
915 | |
916 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
917 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
918 } | |
919 | |
920 | |
921 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
922 java_thread->int_field_put(_priority_offset, priority); | |
923 } | |
924 | |
925 | |
926 oop java_lang_Thread::threadGroup(oop java_thread) { | |
927 return java_thread->obj_field(_group_offset); | |
928 } | |
929 | |
930 | |
931 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
932 return java_thread->bool_field(_stillborn_offset) != 0; | |
933 } | |
934 | |
935 | |
936 // We never have reason to turn the stillborn bit off | |
937 void java_lang_Thread::set_stillborn(oop java_thread) { | |
938 java_thread->bool_field_put(_stillborn_offset, true); | |
939 } | |
940 | |
941 | |
942 bool java_lang_Thread::is_alive(oop java_thread) { | |
943 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
944 return (thr != NULL); | |
945 } | |
946 | |
947 | |
948 bool java_lang_Thread::is_daemon(oop java_thread) { | |
949 return java_thread->bool_field(_daemon_offset) != 0; | |
950 } | |
951 | |
952 | |
953 void java_lang_Thread::set_daemon(oop java_thread) { | |
954 java_thread->bool_field_put(_daemon_offset, true); | |
955 } | |
956 | |
957 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
958 return java_thread->obj_field(_contextClassLoader_offset); | |
959 } | |
960 | |
961 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
962 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
963 } | |
964 | |
965 | |
966 jlong java_lang_Thread::stackSize(oop java_thread) { | |
967 // The stackSize field is only present starting in 1.4 | |
968 if (_stackSize_offset > 0) { | |
969 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
970 return java_thread->long_field(_stackSize_offset); | |
971 } else { | |
972 return 0; | |
973 } | |
974 } | |
975 | |
976 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
977 void java_lang_Thread::set_thread_status(oop java_thread, | |
978 java_lang_Thread::ThreadStatus status) { | |
979 // The threadStatus is only present starting in 1.5 | |
980 if (_thread_status_offset > 0) { | |
981 java_thread->int_field_put(_thread_status_offset, status); | |
982 } | |
983 } | |
984 | |
985 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
986 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
10405 | 987 assert(Thread::current()->is_Watcher_thread() || Thread::current()->is_VM_thread() || |
0 | 988 JavaThread::current()->thread_state() == _thread_in_vm, |
989 "Java Thread is not running in vm"); | |
990 // The threadStatus is only present starting in 1.5 | |
991 if (_thread_status_offset > 0) { | |
992 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
993 } else { | |
994 // All we can easily figure out is if it is alive, but that is | |
995 // enough info for a valid unknown status. | |
996 // These aren't restricted to valid set ThreadStatus values, so | |
997 // use JVMTI values and cast. | |
998 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
999 if (thr == NULL) { | |
1000 // the thread hasn't run yet or is in the process of exiting | |
1001 return NEW; | |
1002 } | |
1003 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
1004 } | |
1005 } | |
1006 | |
1007 | |
1008 jlong java_lang_Thread::thread_id(oop java_thread) { | |
1009 // The thread ID field is only present starting in 1.5 | |
1010 if (_tid_offset > 0) { | |
1011 return java_thread->long_field(_tid_offset); | |
1012 } else { | |
1013 return 0; | |
1014 } | |
1015 } | |
1016 | |
1017 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 1018 assert(JDK_Version::current().supports_thread_park_blocker() && |
1019 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 1020 |
1021 if (_park_blocker_offset > 0) { | |
1022 return java_thread->obj_field(_park_blocker_offset); | |
1023 } | |
1024 | |
1025 return NULL; | |
1026 } | |
1027 | |
1028 jlong java_lang_Thread::park_event(oop java_thread) { | |
1029 if (_park_event_offset > 0) { | |
1030 return java_thread->long_field(_park_event_offset); | |
1031 } | |
1032 return 0; | |
1033 } | |
1034 | |
1035 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
1036 if (_park_event_offset > 0) { | |
1037 java_thread->long_field_put(_park_event_offset, ptr); | |
1038 return true; | |
1039 } | |
1040 return false; | |
1041 } | |
1042 | |
1043 | |
1044 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
1045 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
1046 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
1047 switch (status) { | |
1048 case NEW : return "NEW"; | |
1049 case RUNNABLE : return "RUNNABLE"; | |
1050 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
1051 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
1052 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
1053 case PARKED : return "WAITING (parking)"; | |
1054 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
1055 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
1056 case TERMINATED : return "TERMINATED"; | |
1057 default : return "UNKNOWN"; | |
1058 }; | |
1059 } | |
1060 int java_lang_ThreadGroup::_parent_offset = 0; | |
1061 int java_lang_ThreadGroup::_name_offset = 0; | |
1062 int java_lang_ThreadGroup::_threads_offset = 0; | |
1063 int java_lang_ThreadGroup::_groups_offset = 0; | |
1064 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
1065 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
1066 int java_lang_ThreadGroup::_daemon_offset = 0; | |
1067 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
1068 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
1069 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
1070 | |
1071 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
1072 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1073 return java_thread_group->obj_field(_parent_offset); | |
1074 } | |
1075 | |
1076 // ("name as oop" accessor is not necessary) | |
1077 | |
1078 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
1079 oop name = java_thread_group->obj_field(_name_offset); | |
1080 // ThreadGroup.name can be null | |
1081 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
1082 } | |
1083 | |
1084 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
1085 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1086 return java_thread_group->int_field(_nthreads_offset); | |
1087 } | |
1088 | |
1089 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
1090 oop threads = java_thread_group->obj_field(_threads_offset); | |
1091 assert(threads != NULL, "threadgroups should have threads"); | |
1092 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1093 return objArrayOop(threads); | |
1094 } | |
1095 | |
1096 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1097 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1098 return java_thread_group->int_field(_ngroups_offset); | |
1099 } | |
1100 | |
1101 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1102 oop groups = java_thread_group->obj_field(_groups_offset); | |
1103 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1104 return objArrayOop(groups); | |
1105 } | |
1106 | |
1107 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1108 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1109 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1110 } | |
1111 | |
1112 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1113 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1114 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1115 } | |
1116 | |
1117 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1118 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1119 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1120 } | |
1121 | |
1122 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1123 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1124 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1125 } | |
1126 | |
1127 void java_lang_ThreadGroup::compute_offsets() { | |
1128 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1129 | |
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1130 Klass* k = SystemDictionary::ThreadGroup_klass(); |
0 | 1131 |
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1132 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1133 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1134 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1135 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1136 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1137 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1138 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1139 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1140 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1141 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1142 } |
1143 | |
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1144 oop java_lang_Throwable::unassigned_stacktrace() { |
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1145 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1146 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1147 if (UseCompressedOops) { |
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1148 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1149 } else { |
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1150 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1151 } |
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1152 } |
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1153 |
0 | 1154 oop java_lang_Throwable::backtrace(oop throwable) { |
1155 return throwable->obj_field_acquire(backtrace_offset); | |
1156 } | |
1157 | |
1158 | |
1159 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1160 throwable->release_obj_field_put(backtrace_offset, value); | |
1161 } | |
1162 | |
1163 | |
1164 oop java_lang_Throwable::message(oop throwable) { | |
1165 return throwable->obj_field(detailMessage_offset); | |
1166 } | |
1167 | |
1168 | |
1169 oop java_lang_Throwable::message(Handle throwable) { | |
1170 return throwable->obj_field(detailMessage_offset); | |
1171 } | |
1172 | |
1173 | |
1174 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1175 throwable->obj_field_put(detailMessage_offset, value); | |
1176 } | |
1177 | |
1178 | |
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1179 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1180 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1181 } |
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1182 |
0 | 1183 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1184 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1185 set_stacktrace(throwable, NULL); |
0 | 1186 } |
1187 | |
1188 | |
1189 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1190 ResourceMark rm; | |
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1191 Klass* k = throwable->klass(); |
0 | 1192 assert(k != NULL, "just checking"); |
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1193 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1194 oop msg = message(throwable); |
1195 if (msg != NULL) { | |
1196 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1197 } | |
1198 } | |
1199 | |
1200 | |
1201 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1202 ResourceMark rm; | |
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1203 Klass* k = throwable->klass(); |
0 | 1204 assert(k != NULL, "just checking"); |
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1205 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1206 oop msg = message(throwable); |
1207 if (msg != NULL) { | |
1208 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1209 } | |
1210 } | |
1211 | |
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1212 // After this many redefines, the stack trace is unreliable. |
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1213 const int MAX_VERSION = USHRT_MAX; |
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1214 |
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1215 // Helper backtrace functions to store bci|version together. |
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1216 static inline int merge_bci_and_version(int bci, int version) { |
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1217 // only store u2 for version, checking for overflow. |
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1218 if (version > USHRT_MAX || version < 0) version = MAX_VERSION; |
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1219 assert((jushort)bci == bci, "bci should be short"); |
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1220 return build_int_from_shorts(version, bci); |
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1221 } |
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1222 |
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1223 static inline int bci_at(unsigned int merged) { |
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1224 return extract_high_short_from_int(merged); |
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1225 } |
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1226 static inline int version_at(unsigned int merged) { |
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1227 return extract_low_short_from_int(merged); |
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1228 } |
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1229 |
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1230 static inline bool version_matches(Method* method, int version) { |
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1231 return (method->constants()->version() == version && version < MAX_VERSION); |
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1232 } |
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1233 |
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1234 static inline int get_line_number(Method* method, int bci) { |
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1235 int line_number = 0; |
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1236 if (method->is_native()) { |
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1237 // Negative value different from -1 below, enabling Java code in |
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1238 // class java.lang.StackTraceElement to distinguish "native" from |
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1239 // "no LineNumberTable". JDK tests for -2. |
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1240 line_number = -2; |
0 | 1241 } else { |
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1242 // Returns -1 if no LineNumberTable, and otherwise actual line number |
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1243 line_number = method->line_number_from_bci(bci); |
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1244 if (line_number == -1 && ShowHiddenFrames) { |
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1245 line_number = bci + 1000000; |
0 | 1246 } |
1247 } | |
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1248 return line_number; |
0 | 1249 } |
1250 | |
1251 // This class provides a simple wrapper over the internal structure of | |
1252 // exception backtrace to insulate users of the backtrace from needing | |
1253 // to know what it looks like. | |
1254 class BacktraceBuilder: public StackObj { | |
1255 private: | |
1256 Handle _backtrace; | |
1257 objArrayOop _head; | |
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1258 typeArrayOop _methods; |
0 | 1259 typeArrayOop _bcis; |
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1260 objArrayOop _mirrors; |
0 | 1261 int _index; |
1262 No_Safepoint_Verifier _nsv; | |
1263 | |
1264 public: | |
1265 | |
1266 enum { | |
1267 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
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1268 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, |
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1269 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
0 | 1270 trace_next_offset = java_lang_Throwable::trace_next_offset, |
1271 trace_size = java_lang_Throwable::trace_size, | |
1272 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1273 }; | |
1274 | |
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1275 // get info out of chunks |
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1276 static typeArrayOop get_methods(objArrayHandle chunk) { |
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1277 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
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1278 assert(methods != NULL, "method array should be initialized in backtrace"); |
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1279 return methods; |
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1280 } |
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1281 static typeArrayOop get_bcis(objArrayHandle chunk) { |
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1282 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
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1283 assert(bcis != NULL, "bci array should be initialized in backtrace"); |
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1284 return bcis; |
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1285 } |
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1286 static objArrayOop get_mirrors(objArrayHandle chunk) { |
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1287 objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset)); |
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1288 assert(mirrors != NULL, "mirror array should be initialized in backtrace"); |
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1289 return mirrors; |
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1290 } |
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1291 |
0 | 1292 // constructor for new backtrace |
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1293 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
0 | 1294 expand(CHECK); |
1295 _backtrace = _head; | |
1296 _index = 0; | |
1297 } | |
1298 | |
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1299 BacktraceBuilder(objArrayHandle backtrace) { |
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1300 _methods = get_methods(backtrace); |
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1301 _bcis = get_bcis(backtrace); |
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1302 _mirrors = get_mirrors(backtrace); |
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1303 assert(_methods->length() == _bcis->length() && |
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1304 _methods->length() == _mirrors->length(), |
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1305 "method and source information arrays should match"); |
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1306 |
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1307 // head is the preallocated backtrace |
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1308 _backtrace = _head = backtrace(); |
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1309 _index = 0; |
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1310 } |
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1311 |
0 | 1312 void expand(TRAPS) { |
1313 objArrayHandle old_head(THREAD, _head); | |
1314 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1315 | |
1316 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1317 objArrayHandle new_head(THREAD, head); | |
1318 | |
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1319 typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
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1320 typeArrayHandle new_methods(THREAD, methods); |
0 | 1321 |
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1322 typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK); |
0 | 1323 typeArrayHandle new_bcis(THREAD, bcis); |
1324 | |
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1325 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1326 objArrayHandle new_mirrors(THREAD, mirrors); |
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1327 |
0 | 1328 if (!old_head.is_null()) { |
1329 old_head->obj_at_put(trace_next_offset, new_head()); | |
1330 } | |
1331 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1332 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
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1333 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
0 | 1334 |
1335 _head = new_head(); | |
1336 _methods = new_methods(); | |
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1337 _bcis = new_bcis(); |
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1338 _mirrors = new_mirrors(); |
0 | 1339 _index = 0; |
1340 } | |
1341 | |
1342 oop backtrace() { | |
1343 return _backtrace(); | |
1344 } | |
1345 | |
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1346 inline void push(Method* method, int bci, TRAPS) { |
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1347 // Smear the -1 bci to 0 since the array only holds unsigned |
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1348 // shorts. The later line number lookup would just smear the -1 |
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1349 // to a 0 even if it could be recorded. |
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1350 if (bci == SynchronizationEntryBCI) bci = 0; |
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1351 |
0 | 1352 if (_index >= trace_chunk_size) { |
1353 methodHandle mhandle(THREAD, method); | |
1354 expand(CHECK); | |
1355 method = mhandle(); | |
1356 } | |
1357 | |
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1358 _methods->short_at_put(_index, method->method_idnum()); |
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1359 _bcis->int_at_put(_index, merge_bci_and_version(bci, method->constants()->version())); |
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1360 |
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1361 // We need to save the mirrors in the backtrace to keep the class |
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1362 // from being unloaded while we still have this stack trace. |
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1363 assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror"); |
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1364 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
0 | 1365 _index++; |
1366 } | |
1367 | |
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1368 }; |
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1369 |
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1370 // Print stack trace element to resource allocated buffer |
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1371 char* java_lang_Throwable::print_stack_element_to_buffer(Handle mirror, |
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1372 int method_id, int version, int bci) { |
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1373 |
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1374 // Get strings and string lengths |
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1375 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1376 const char* klass_name = holder->external_name(); |
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1377 int buf_len = (int)strlen(klass_name); |
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1378 |
12810
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1379 // The method id may point to an obsolete method, can't get more stack information |
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1380 Method* method = holder->method_with_idnum(method_id); |
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1381 if (method == NULL) { |
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1382 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1383 // This is what the java code prints in this case - added Redefined |
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1384 sprintf(buf, "\tat %s.null (Redefined)", klass_name); |
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1385 return buf; |
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1386 } |
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1387 |
7624
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1388 char* method_name = method->name()->as_C_string(); |
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1389 buf_len += (int)strlen(method_name); |
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1390 |
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1391 char* source_file_name = NULL; |
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1392 if (version_matches(method, version)) { |
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1393 Symbol* source = holder->source_file_name(); |
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1394 if (source != NULL) { |
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1395 source_file_name = source->as_C_string(); |
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1396 buf_len += (int)strlen(source_file_name); |
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1397 } |
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1398 } |
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1399 |
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1400 // Allocate temporary buffer with extra space for formatting and line number |
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1401 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1402 |
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1403 // Print stack trace line in buffer |
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1404 sprintf(buf, "\tat %s.%s", klass_name, method_name); |
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1405 |
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1406 if (!version_matches(method, version)) { |
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1407 strcat(buf, "(Redefined)"); |
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1408 } else { |
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1409 int line_number = get_line_number(method, bci); |
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1410 if (line_number == -2) { |
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1411 strcat(buf, "(Native Method)"); |
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1412 } else { |
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1413 if (source_file_name != NULL && (line_number != -1)) { |
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1414 // Sourcename and linenumber |
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1415 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); |
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1416 } else if (source_file_name != NULL) { |
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1417 // Just sourcename |
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1418 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); |
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1419 } else { |
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1420 // Neither sourcename nor linenumber |
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1421 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); |
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1422 } |
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1423 nmethod* nm = method->code(); |
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1424 if (WizardMode && nm != NULL) { |
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1425 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
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1426 } |
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1427 } |
0 | 1428 } |
1429 | |
7624
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1430 return buf; |
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1431 } |
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1432 |
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1433 void java_lang_Throwable::print_stack_element(outputStream *st, Handle mirror, |
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1434 int method_id, int version, int bci) { |
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1435 ResourceMark rm; |
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1436 char* buf = print_stack_element_to_buffer(mirror, method_id, version, bci); |
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1437 st->print_cr("%s", buf); |
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1438 } |
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1439 |
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1440 void java_lang_Throwable::print_stack_element(outputStream *st, methodHandle method, int bci) { |
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1441 Handle mirror = method->method_holder()->java_mirror(); |
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1442 int method_id = method->method_idnum(); |
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1443 int version = method->constants()->version(); |
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1444 print_stack_element(st, mirror, method_id, version, bci); |
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1445 } |
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1446 |
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1447 const char* java_lang_Throwable::no_stack_trace_message() { |
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1448 return "\t<<no stack trace available>>"; |
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1449 } |
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1450 |
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1451 |
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1452 // Currently used only for exceptions occurring during startup |
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1453 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { |
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1454 Thread *THREAD = Thread::current(); |
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1455 Handle h_throwable(THREAD, throwable); |
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1456 while (h_throwable.not_null()) { |
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1457 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); |
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1458 if (result.is_null()) { |
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1459 st->print_cr(no_stack_trace_message()); |
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1460 return; |
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1461 } |
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1462 |
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1463 while (result.not_null()) { |
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1464 |
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1465 // Get method id, bci, version and mirror from chunk |
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1466 typeArrayHandle methods (THREAD, BacktraceBuilder::get_methods(result)); |
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1467 typeArrayHandle bcis (THREAD, BacktraceBuilder::get_bcis(result)); |
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1468 objArrayHandle mirrors (THREAD, BacktraceBuilder::get_mirrors(result)); |
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1469 |
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1470 int length = methods()->length(); |
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1471 for (int index = 0; index < length; index++) { |
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1472 Handle mirror(THREAD, mirrors->obj_at(index)); |
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1473 // NULL mirror means end of stack trace |
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1474 if (mirror.is_null()) goto handle_cause; |
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1475 int method = methods->short_at(index); |
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1476 int version = version_at(bcis->int_at(index)); |
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1477 int bci = bci_at(bcis->int_at(index)); |
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1478 print_stack_element(st, mirror, method, version, bci); |
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1479 } |
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1480 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); |
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1481 } |
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1482 handle_cause: |
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1483 { |
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1484 EXCEPTION_MARK; |
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1485 JavaValue cause(T_OBJECT); |
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1486 JavaCalls::call_virtual(&cause, |
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1487 h_throwable, |
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1488 KlassHandle(THREAD, h_throwable->klass()), |
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1489 vmSymbols::getCause_name(), |
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1490 vmSymbols::void_throwable_signature(), |
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1491 THREAD); |
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1492 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. |
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1493 if (HAS_PENDING_EXCEPTION) { |
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1494 CLEAR_PENDING_EXCEPTION; |
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1495 h_throwable = Handle(); |
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1496 } else { |
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1497 h_throwable = Handle(THREAD, (oop) cause.get_jobject()); |
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1498 if (h_throwable.not_null()) { |
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1499 st->print("Caused by: "); |
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1500 print(h_throwable, st); |
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1501 st->cr(); |
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1502 } |
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1503 } |
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1504 } |
0 | 1505 } |
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1506 } |
0 | 1507 |
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1508 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1509 if (!StackTraceInThrowable) return; |
1510 ResourceMark rm(THREAD); | |
1511 | |
1512 // Start out by clearing the backtrace for this object, in case the VM | |
1513 // runs out of memory while allocating the stack trace | |
1514 set_backtrace(throwable(), NULL); | |
1515 if (JDK_Version::is_gte_jdk14x_version()) { | |
1516 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1517 // refilling occurs | |
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1518 // This is unnecessary in 1.7+ but harmless |
0 | 1519 clear_stacktrace(throwable()); |
1520 } | |
1521 | |
1522 int max_depth = MaxJavaStackTraceDepth; | |
1523 JavaThread* thread = (JavaThread*)THREAD; | |
1524 BacktraceBuilder bt(CHECK); | |
1525 | |
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1526 // If there is no Java frame just return the method that was being called |
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1527 // with bci 0 |
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1528 if (!thread->has_last_Java_frame()) { |
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1529 if (max_depth >= 1 && method() != NULL) { |
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1530 bt.push(method(), 0, CHECK); |
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1531 set_backtrace(throwable(), bt.backtrace()); |
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1532 } |
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1533 return; |
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1534 } |
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1535 |
0 | 1536 // Instead of using vframe directly, this version of fill_in_stack_trace |
1537 // basically handles everything by hand. This significantly improved the | |
1538 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1539 // See bug 6333838 for more details. | |
1540 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1541 // trace as utilizing vframe. | |
1542 #ifdef ASSERT | |
1543 vframeStream st(thread); | |
1544 methodHandle st_method(THREAD, st.method()); | |
1545 #endif | |
1546 int total_count = 0; | |
1547 RegisterMap map(thread, false); | |
1548 int decode_offset = 0; | |
1549 nmethod* nm = NULL; | |
1550 bool skip_fillInStackTrace_check = false; | |
1551 bool skip_throwableInit_check = false; | |
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1552 bool skip_hidden = !ShowHiddenFrames; |
0 | 1553 |
1554 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
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1555 Method* method = NULL; |
0 | 1556 int bci = 0; |
1557 | |
1558 // Compiled java method case. | |
1559 if (decode_offset != 0) { | |
1560 DebugInfoReadStream stream(nm, decode_offset); | |
1561 decode_offset = stream.read_int(); | |
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1562 method = (Method*)nm->metadata_at(stream.read_int()); |
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1563 bci = stream.read_bci(); |
0 | 1564 } else { |
1565 if (fr.is_first_frame()) break; | |
1566 address pc = fr.pc(); | |
1567 if (fr.is_interpreted_frame()) { | |
1568 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1569 method = fr.interpreter_frame_method(); | |
1570 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1571 fr = fr.sender(&map); | |
1572 } else { | |
1573 CodeBlob* cb = fr.cb(); | |
1574 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1575 // but non nmethod | |
1576 fr = fr.sender(&map); | |
1577 if (cb == NULL || !cb->is_nmethod()) { | |
1578 continue; | |
1579 } | |
1580 nm = (nmethod*)cb; | |
1581 if (nm->method()->is_native()) { | |
1582 method = nm->method(); | |
1583 bci = 0; | |
1584 } else { | |
1585 PcDesc* pd = nm->pc_desc_at(pc); | |
1586 decode_offset = pd->scope_decode_offset(); | |
1587 // if decode_offset is not equal to 0, it will execute the | |
1588 // "compiled java method case" at the beginning of the loop. | |
1589 continue; | |
1590 } | |
1591 } | |
1592 } | |
1593 #ifdef ASSERT | |
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1594 assert(st_method() == method && st.bci() == bci, |
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1595 "Wrong stack trace"); |
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1596 st.next(); |
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1597 // vframeStream::method isn't GC-safe so store off a copy |
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1598 // of the Method* in case we GC. |
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1599 if (!st.at_end()) { |
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1600 st_method = st.method(); |
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1601 } |
0 | 1602 #endif |
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1603 |
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1604 // the format of the stacktrace will be: |
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1605 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1606 // - 0 or more <init> methods for the exception class (skipped) |
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1607 // - rest of the stack |
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1608 |
0 | 1609 if (!skip_fillInStackTrace_check) { |
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1610 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1611 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1612 throwable->is_a(method->method_holder())) { |
0 | 1613 continue; |
1614 } | |
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1615 else { |
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1616 skip_fillInStackTrace_check = true; // gone past them all |
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1617 } |
0 | 1618 } |
1619 if (!skip_throwableInit_check) { | |
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1620 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1621 |
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1622 // skip <init> methods of the exception class and superclasses |
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1623 // This is simlar to classic VM. |
0 | 1624 if (method->name() == vmSymbols::object_initializer_name() && |
1625 throwable->is_a(method->method_holder())) { | |
1626 continue; | |
1627 } else { | |
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1628 // there are none or we've seen them all - either way stop checking |
0 | 1629 skip_throwableInit_check = true; |
1630 } | |
1631 } | |
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1632 if (method->is_hidden()) { |
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1633 if (skip_hidden) continue; |
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1634 } |
0 | 1635 bt.push(method, bci, CHECK); |
1636 total_count++; | |
1637 } | |
1638 | |
1639 // Put completed stack trace into throwable object | |
1640 set_backtrace(throwable(), bt.backtrace()); | |
1641 } | |
1642 | |
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1643 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1644 // No-op if stack trace is disabled |
1645 if (!StackTraceInThrowable) { | |
1646 return; | |
1647 } | |
1648 | |
1649 // Disable stack traces for some preallocated out of memory errors | |
1650 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1651 return; | |
1652 } | |
1653 | |
1654 PRESERVE_EXCEPTION_MARK; | |
1655 | |
1656 JavaThread* thread = JavaThread::active(); | |
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1657 fill_in_stack_trace(throwable, method, thread); |
0 | 1658 // ignore exceptions thrown during stack trace filling |
1659 CLEAR_PENDING_EXCEPTION; | |
1660 } | |
1661 | |
1662 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1663 // Allocate stack trace - backtrace is created but not filled in | |
1664 | |
1665 // No-op if stack trace is disabled | |
1666 if (!StackTraceInThrowable) return; | |
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1667 BacktraceBuilder bt(CHECK); // creates a backtrace |
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1668 set_backtrace(throwable(), bt.backtrace()); |
0 | 1669 } |
1670 | |
1671 | |
1672 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1673 // Fill in stack trace into preallocated backtrace (no GC) | |
1674 | |
1675 // No-op if stack trace is disabled | |
1676 if (!StackTraceInThrowable) return; | |
1677 | |
1142 | 1678 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1679 |
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1680 JavaThread* THREAD = JavaThread::current(); |
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1681 |
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1682 objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable())); |
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1683 assert(backtrace.not_null(), "backtrace should have been preallocated"); |
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1684 |
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1685 ResourceMark rm(THREAD); |
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1686 vframeStream st(THREAD); |
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1687 |
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1688 BacktraceBuilder bt(backtrace); |
0 | 1689 |
1690 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1691 // methods as preallocated errors aren't created by "java" code. | |
1692 | |
1693 // fill in as much stack trace as possible | |
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1694 typeArrayOop methods = BacktraceBuilder::get_methods(backtrace); |
0 | 1695 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); |
1696 int chunk_count = 0; | |
1697 | |
1698 for (;!st.at_end(); st.next()) { | |
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1699 bt.push(st.method(), st.bci(), CHECK); |
0 | 1700 chunk_count++; |
1701 | |
1702 // Bail-out for deep stacks | |
1703 if (chunk_count >= max_chunks) break; | |
1704 } | |
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1705 |
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1706 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1707 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1708 // can be removed in a JDK using this JVM version |
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1709 if (JDK_Version::is_gte_jdk17x_version()) { |
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1710 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1711 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1712 } |
0 | 1713 } |
1714 | |
1715 | |
1716 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1717 if (throwable == NULL) { | |
1718 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1719 } | |
1720 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1721 int depth = 0; | |
1722 if (chunk != NULL) { | |
1723 // Iterate over chunks and count full ones | |
1724 while (true) { | |
1725 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1726 if (next == NULL) break; | |
1727 depth += trace_chunk_size; | |
1728 chunk = next; | |
1729 } | |
1730 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
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1731 // Count element in remaining partial chunk. NULL value for mirror |
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1732 // marks the end of the stack trace elements that are saved. |
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1733 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1734 assert(mirrors != NULL, "sanity check"); |
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1735 for (int i = 0; i < mirrors->length(); i++) { |
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1736 if (mirrors->obj_at(i) == NULL) break; |
0 | 1737 depth++; |
1738 } | |
1739 } | |
1740 return depth; | |
1741 } | |
1742 | |
1743 | |
1744 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1745 if (throwable == NULL) { | |
1746 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1747 } | |
1748 if (index < 0) { | |
1749 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1750 } | |
1751 // Compute how many chunks to skip and index into actual chunk | |
1752 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1753 int skip_chunks = index / trace_chunk_size; | |
1754 int chunk_index = index % trace_chunk_size; | |
1755 while (chunk != NULL && skip_chunks > 0) { | |
1756 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1757 skip_chunks--; | |
1758 } | |
1759 if (chunk == NULL) { | |
1760 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1761 } | |
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1762 // Get method id, bci, version and mirror from chunk |
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1763 typeArrayOop methods = BacktraceBuilder::get_methods(chunk); |
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1764 typeArrayOop bcis = BacktraceBuilder::get_bcis(chunk); |
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1765 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1766 |
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1767 assert(methods != NULL && bcis != NULL && mirrors != NULL, "sanity check"); |
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1768 |
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1769 int method = methods->short_at(chunk_index); |
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1770 int version = version_at(bcis->int_at(chunk_index)); |
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1771 int bci = bci_at(bcis->int_at(chunk_index)); |
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1772 Handle mirror(THREAD, mirrors->obj_at(chunk_index)); |
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1773 |
0 | 1774 // Chunk can be partial full |
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1775 if (mirror.is_null()) { |
0 | 1776 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); |
1777 } | |
1778 | |
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1779 oop element = java_lang_StackTraceElement::create(mirror, method, version, bci, CHECK_0); |
0 | 1780 return element; |
1781 } | |
1782 | |
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1783 oop java_lang_StackTraceElement::create(Handle mirror, int method_id, |
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1784 int version, int bci, TRAPS) { |
0 | 1785 // Allocate java.lang.StackTraceElement instance |
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1786 Klass* k = SystemDictionary::StackTraceElement_klass(); |
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1787 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1788 instanceKlassHandle ik (THREAD, k); |
1789 if (ik->should_be_initialized()) { | |
1790 ik->initialize(CHECK_0); | |
1791 } | |
1792 | |
1793 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1794 // Fill in class name | |
1795 ResourceMark rm(THREAD); | |
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1796 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1797 const char* str = holder->external_name(); |
0 | 1798 oop classname = StringTable::intern((char*) str, CHECK_0); |
1799 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
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1800 |
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1801 Method* method = holder->method_with_idnum(method_id); |
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1802 // Method on stack may be obsolete because it was redefined so cannot be |
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1803 // found by idnum. |
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1804 if (method == NULL) { |
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1805 // leave name and fileName null |
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1806 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
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1807 return element(); |
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1808 } |
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1809 |
0 | 1810 // Fill in method name |
1811 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1812 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
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1813 |
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1814 if (!version_matches(method, version)) { |
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1815 // The method was redefined, accurate line number information isn't available |
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1816 java_lang_StackTraceElement::set_fileName(element(), NULL); |
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1817 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
0 | 1818 } else { |
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1819 // Fill in source file name and line number. |
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1820 Symbol* source = holder->source_file_name(); |
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1821 if (ShowHiddenFrames && source == NULL) |
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1822 source = vmSymbols::unknown_class_name(); |
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1823 oop filename = StringTable::intern(source, CHECK_0); |
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1824 java_lang_StackTraceElement::set_fileName(element(), filename); |
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1825 |
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1826 int line_number = get_line_number(method, bci); |
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1827 java_lang_StackTraceElement::set_lineNumber(element(), line_number); |
0 | 1828 } |
1829 return element(); | |
1830 } | |
1831 | |
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1832 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { |
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1833 Handle mirror (THREAD, method->method_holder()->java_mirror()); |
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1834 int method_id = method->method_idnum(); |
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1835 return create(mirror, method_id, method->constants()->version(), bci, THREAD); |
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1836 } |
0 | 1837 |
1838 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
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1839 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1840 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1841 } |
1842 | |
1843 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1844 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1845 return (jboolean) reflect->bool_field(override_offset); | |
1846 } | |
1847 | |
1848 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1849 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1850 reflect->bool_field_put(override_offset, (int) value); | |
1851 } | |
1852 | |
1853 void java_lang_reflect_Method::compute_offsets() { | |
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1854 Klass* k = SystemDictionary::reflect_Method_klass(); |
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1855 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1856 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1857 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1858 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1859 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1860 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1861 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1862 // The generic signature and annotations fields are only present in 1.5 |
1863 signature_offset = -1; | |
1864 annotations_offset = -1; | |
1865 parameter_annotations_offset = -1; | |
1866 annotation_default_offset = -1; | |
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1867 type_annotations_offset = -1; |
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1868 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1869 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1870 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1871 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
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1872 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1873 } |
1874 | |
1875 Handle java_lang_reflect_Method::create(TRAPS) { | |
1876 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1877 Klass* klass = SystemDictionary::reflect_Method_klass(); |
0 | 1878 // This class is eagerly initialized during VM initialization, since we keep a refence |
1879 // to one of the methods | |
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1880 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1881 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
0 | 1882 } |
1883 | |
1884 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1886 return reflect->obj_field(clazz_offset); | |
1887 } | |
1888 | |
1889 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1891 reflect->obj_field_put(clazz_offset, value); | |
1892 } | |
1893 | |
1894 int java_lang_reflect_Method::slot(oop reflect) { | |
1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1896 return reflect->int_field(slot_offset); | |
1897 } | |
1898 | |
1899 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1901 reflect->int_field_put(slot_offset, value); | |
1902 } | |
1903 | |
1904 oop java_lang_reflect_Method::name(oop method) { | |
1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1906 return method->obj_field(name_offset); | |
1907 } | |
1908 | |
1909 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1911 method->obj_field_put(name_offset, value); | |
1912 } | |
1913 | |
1914 oop java_lang_reflect_Method::return_type(oop method) { | |
1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1916 return method->obj_field(returnType_offset); | |
1917 } | |
1918 | |
1919 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1921 method->obj_field_put(returnType_offset, value); | |
1922 } | |
1923 | |
1924 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1926 return method->obj_field(parameterTypes_offset); | |
1927 } | |
1928 | |
1929 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1931 method->obj_field_put(parameterTypes_offset, value); | |
1932 } | |
1933 | |
1934 oop java_lang_reflect_Method::exception_types(oop method) { | |
1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1936 return method->obj_field(exceptionTypes_offset); | |
1937 } | |
1938 | |
1939 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1941 method->obj_field_put(exceptionTypes_offset, value); | |
1942 } | |
1943 | |
1944 int java_lang_reflect_Method::modifiers(oop method) { | |
1945 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1946 return method->int_field(modifiers_offset); | |
1947 } | |
1948 | |
1949 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1950 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1951 method->int_field_put(modifiers_offset, value); | |
1952 } | |
1953 | |
1954 bool java_lang_reflect_Method::has_signature_field() { | |
1955 return (signature_offset >= 0); | |
1956 } | |
1957 | |
1958 oop java_lang_reflect_Method::signature(oop method) { | |
1959 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1960 assert(has_signature_field(), "signature field must be present"); | |
1961 return method->obj_field(signature_offset); | |
1962 } | |
1963 | |
1964 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1966 assert(has_signature_field(), "signature field must be present"); | |
1967 method->obj_field_put(signature_offset, value); | |
1968 } | |
1969 | |
1970 bool java_lang_reflect_Method::has_annotations_field() { | |
1971 return (annotations_offset >= 0); | |
1972 } | |
1973 | |
1974 oop java_lang_reflect_Method::annotations(oop method) { | |
1975 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1976 assert(has_annotations_field(), "annotations field must be present"); | |
1977 return method->obj_field(annotations_offset); | |
1978 } | |
1979 | |
1980 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1981 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1982 assert(has_annotations_field(), "annotations field must be present"); | |
1983 method->obj_field_put(annotations_offset, value); | |
1984 } | |
1985 | |
1986 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1987 return (parameter_annotations_offset >= 0); | |
1988 } | |
1989 | |
1990 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1991 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1992 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1993 return method->obj_field(parameter_annotations_offset); | |
1994 } | |
1995 | |
1996 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1997 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1998 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1999 method->obj_field_put(parameter_annotations_offset, value); | |
2000 } | |
2001 | |
2002 bool java_lang_reflect_Method::has_annotation_default_field() { | |
2003 return (annotation_default_offset >= 0); | |
2004 } | |
2005 | |
2006 oop java_lang_reflect_Method::annotation_default(oop method) { | |
2007 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2008 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2009 return method->obj_field(annotation_default_offset); | |
2010 } | |
2011 | |
2012 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
2013 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2014 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2015 method->obj_field_put(annotation_default_offset, value); | |
2016 } | |
2017 | |
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2018 bool java_lang_reflect_Method::has_type_annotations_field() { |
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2019 return (type_annotations_offset >= 0); |
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2020 } |
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2021 |
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2022 oop java_lang_reflect_Method::type_annotations(oop method) { |
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2023 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2024 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2025 return method->obj_field(type_annotations_offset); |
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2026 } |
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2027 |
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2028 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { |
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2029 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2030 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2031 method->obj_field_put(type_annotations_offset, value); |
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2032 } |
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2033 |
0 | 2034 void java_lang_reflect_Constructor::compute_offsets() { |
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2035 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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2036 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2037 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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2038 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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2039 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2040 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2041 // The generic signature and annotations fields are only present in 1.5 |
2042 signature_offset = -1; | |
2043 annotations_offset = -1; | |
2044 parameter_annotations_offset = -1; | |
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2045 type_annotations_offset = -1; |
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2046 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2047 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2048 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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2049 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2050 } |
2051 | |
2052 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
2053 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2054 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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2055 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2056 instanceKlassHandle klass (THREAD, k); |
2057 // Ensure it is initialized | |
2058 klass->initialize(CHECK_NH); | |
2059 return klass->allocate_instance_handle(CHECK_NH); | |
2060 } | |
2061 | |
2062 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
2063 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2064 return reflect->obj_field(clazz_offset); | |
2065 } | |
2066 | |
2067 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
2068 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2069 reflect->obj_field_put(clazz_offset, value); | |
2070 } | |
2071 | |
2072 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
2073 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2074 return constructor->obj_field(parameterTypes_offset); | |
2075 } | |
2076 | |
2077 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
2078 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2079 constructor->obj_field_put(parameterTypes_offset, value); | |
2080 } | |
2081 | |
2082 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
2083 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2084 return constructor->obj_field(exceptionTypes_offset); | |
2085 } | |
2086 | |
2087 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
2088 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2089 constructor->obj_field_put(exceptionTypes_offset, value); | |
2090 } | |
2091 | |
2092 int java_lang_reflect_Constructor::slot(oop reflect) { | |
2093 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2094 return reflect->int_field(slot_offset); | |
2095 } | |
2096 | |
2097 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
2098 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2099 reflect->int_field_put(slot_offset, value); | |
2100 } | |
2101 | |
2102 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
2103 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2104 return constructor->int_field(modifiers_offset); | |
2105 } | |
2106 | |
2107 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
2108 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2109 constructor->int_field_put(modifiers_offset, value); | |
2110 } | |
2111 | |
2112 bool java_lang_reflect_Constructor::has_signature_field() { | |
2113 return (signature_offset >= 0); | |
2114 } | |
2115 | |
2116 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
2117 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2118 assert(has_signature_field(), "signature field must be present"); | |
2119 return constructor->obj_field(signature_offset); | |
2120 } | |
2121 | |
2122 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
2123 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2124 assert(has_signature_field(), "signature field must be present"); | |
2125 constructor->obj_field_put(signature_offset, value); | |
2126 } | |
2127 | |
2128 bool java_lang_reflect_Constructor::has_annotations_field() { | |
2129 return (annotations_offset >= 0); | |
2130 } | |
2131 | |
2132 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
2133 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2134 assert(has_annotations_field(), "annotations field must be present"); | |
2135 return constructor->obj_field(annotations_offset); | |
2136 } | |
2137 | |
2138 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
2139 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2140 assert(has_annotations_field(), "annotations field must be present"); | |
2141 constructor->obj_field_put(annotations_offset, value); | |
2142 } | |
2143 | |
2144 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
2145 return (parameter_annotations_offset >= 0); | |
2146 } | |
2147 | |
2148 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
2149 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2150 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2151 return method->obj_field(parameter_annotations_offset); | |
2152 } | |
2153 | |
2154 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
2155 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2156 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2157 method->obj_field_put(parameter_annotations_offset, value); | |
2158 } | |
2159 | |
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2160 bool java_lang_reflect_Constructor::has_type_annotations_field() { |
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2161 return (type_annotations_offset >= 0); |
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2162 } |
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2163 |
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2164 oop java_lang_reflect_Constructor::type_annotations(oop constructor) { |
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2165 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2166 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2167 return constructor->obj_field(type_annotations_offset); |
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2168 } |
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2169 |
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2170 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { |
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2171 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2172 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2173 constructor->obj_field_put(type_annotations_offset, value); |
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2174 } |
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2175 |
0 | 2176 void java_lang_reflect_Field::compute_offsets() { |
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2177 Klass* k = SystemDictionary::reflect_Field_klass(); |
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2178 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2179 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2180 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2181 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2182 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2183 // The generic signature and annotations fields are only present in 1.5 |
2184 signature_offset = -1; | |
2185 annotations_offset = -1; | |
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2186 type_annotations_offset = -1; |
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2187 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2188 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2189 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2190 } |
2191 | |
2192 Handle java_lang_reflect_Field::create(TRAPS) { | |
2193 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2194 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2195 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2196 instanceKlassHandle klass (THREAD, k); |
2197 // Ensure it is initialized | |
2198 klass->initialize(CHECK_NH); | |
2199 return klass->allocate_instance_handle(CHECK_NH); | |
2200 } | |
2201 | |
2202 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2203 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2204 return reflect->obj_field(clazz_offset); | |
2205 } | |
2206 | |
2207 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2208 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2209 reflect->obj_field_put(clazz_offset, value); | |
2210 } | |
2211 | |
2212 oop java_lang_reflect_Field::name(oop field) { | |
2213 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2214 return field->obj_field(name_offset); | |
2215 } | |
2216 | |
2217 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2218 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2219 field->obj_field_put(name_offset, value); | |
2220 } | |
2221 | |
2222 oop java_lang_reflect_Field::type(oop field) { | |
2223 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2224 return field->obj_field(type_offset); | |
2225 } | |
2226 | |
2227 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2228 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2229 field->obj_field_put(type_offset, value); | |
2230 } | |
2231 | |
2232 int java_lang_reflect_Field::slot(oop reflect) { | |
2233 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2234 return reflect->int_field(slot_offset); | |
2235 } | |
2236 | |
2237 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2238 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2239 reflect->int_field_put(slot_offset, value); | |
2240 } | |
2241 | |
2242 int java_lang_reflect_Field::modifiers(oop field) { | |
2243 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2244 return field->int_field(modifiers_offset); | |
2245 } | |
2246 | |
2247 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2248 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2249 field->int_field_put(modifiers_offset, value); | |
2250 } | |
2251 | |
2252 bool java_lang_reflect_Field::has_signature_field() { | |
2253 return (signature_offset >= 0); | |
2254 } | |
2255 | |
2256 oop java_lang_reflect_Field::signature(oop field) { | |
2257 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2258 assert(has_signature_field(), "signature field must be present"); | |
2259 return field->obj_field(signature_offset); | |
2260 } | |
2261 | |
2262 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2263 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2264 assert(has_signature_field(), "signature field must be present"); | |
2265 field->obj_field_put(signature_offset, value); | |
2266 } | |
2267 | |
2268 bool java_lang_reflect_Field::has_annotations_field() { | |
2269 return (annotations_offset >= 0); | |
2270 } | |
2271 | |
2272 oop java_lang_reflect_Field::annotations(oop field) { | |
2273 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2274 assert(has_annotations_field(), "annotations field must be present"); | |
2275 return field->obj_field(annotations_offset); | |
2276 } | |
2277 | |
2278 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2279 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2280 assert(has_annotations_field(), "annotations field must be present"); | |
2281 field->obj_field_put(annotations_offset, value); | |
2282 } | |
2283 | |
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2284 bool java_lang_reflect_Field::has_type_annotations_field() { |
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2285 return (type_annotations_offset >= 0); |
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2286 } |
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2287 |
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2288 oop java_lang_reflect_Field::type_annotations(oop field) { |
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2289 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2290 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2291 return field->obj_field(type_annotations_offset); |
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2292 } |
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2293 |
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2294 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { |
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2295 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2296 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2297 field->obj_field_put(type_annotations_offset, value); |
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2298 } |
0 | 2299 |
2300 void sun_reflect_ConstantPool::compute_offsets() { | |
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2301 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2302 // This null test can be removed post beta |
2303 if (k != NULL) { | |
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2304 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
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2305 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
0 | 2306 } |
2307 } | |
2308 | |
7462
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2309 void java_lang_reflect_Parameter::compute_offsets() { |
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2310 Klass* k = SystemDictionary::reflect_Parameter_klass(); |
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2311 if(NULL != k) { |
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2312 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2313 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
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2314 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); |
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2315 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); |
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2316 } |
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2317 } |
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2318 |
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2319 Handle java_lang_reflect_Parameter::create(TRAPS) { |
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2320 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2321 Symbol* name = vmSymbols::java_lang_reflect_Parameter(); |
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2322 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
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2323 instanceKlassHandle klass (THREAD, k); |
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2324 // Ensure it is initialized |
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2325 klass->initialize(CHECK_NH); |
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2326 return klass->allocate_instance_handle(CHECK_NH); |
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2327 } |
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2328 |
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2329 oop java_lang_reflect_Parameter::name(oop param) { |
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2330 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2331 return param->obj_field(name_offset); |
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2332 } |
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2333 |
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2334 void java_lang_reflect_Parameter::set_name(oop param, oop value) { |
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2335 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2336 param->obj_field_put(name_offset, value); |
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2337 } |
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2338 |
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2339 int java_lang_reflect_Parameter::modifiers(oop param) { |
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2340 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2341 return param->int_field(modifiers_offset); |
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2342 } |
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2343 |
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2344 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { |
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2345 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2346 param->int_field_put(modifiers_offset, value); |
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2347 } |
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2348 |
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2349 int java_lang_reflect_Parameter::index(oop param) { |
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2350 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2351 return param->int_field(index_offset); |
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2352 } |
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2353 |
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2354 void java_lang_reflect_Parameter::set_index(oop param, int value) { |
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2355 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2356 param->int_field_put(index_offset, value); |
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|
2357 } |
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|
2358 |
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2359 oop java_lang_reflect_Parameter::executable(oop param) { |
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2360 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2361 return param->obj_field(executable_offset); |
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|
2362 } |
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|
2363 |
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2364 void java_lang_reflect_Parameter::set_executable(oop param, oop value) { |
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2365 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2366 param->obj_field_put(executable_offset, value); |
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2367 } |
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2368 |
0 | 2369 |
2370 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2371 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2372 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2373 instanceKlassHandle klass (THREAD, k); |
2374 // Ensure it is initialized | |
2375 klass->initialize(CHECK_NH); | |
2376 return klass->allocate_instance_handle(CHECK_NH); | |
2377 } | |
2378 | |
2379 | |
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2380 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
0 | 2381 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2382 oop mirror = value->pool_holder()->java_mirror(); |
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2383 // Save the mirror to get back the constant pool. |
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2384 reflect->obj_field_put(_oop_offset, mirror); |
0 | 2385 } |
2386 | |
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2387 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
0 | 2388 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
6725
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2389 |
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2390 oop mirror = reflect->obj_field(_oop_offset); |
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2391 Klass* k = java_lang_Class::as_Klass(mirror); |
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2392 assert(k->oop_is_instance(), "Must be"); |
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2393 |
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2394 // Get the constant pool back from the klass. Since class redefinition |
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2395 // merges the new constant pool into the old, this is essentially the |
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2396 // same constant pool as the original. If constant pool merging is |
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2397 // no longer done in the future, this will have to change to save |
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2398 // the original. |
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2399 return InstanceKlass::cast(k)->constants(); |
0 | 2400 } |
2401 | |
2402 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
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2403 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2404 // This null test can be removed post beta |
2405 if (k != NULL) { | |
132
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2406 compute_offset(_base_offset, k, |
0 | 2407 vmSymbols::base_name(), vmSymbols::object_signature()); |
2408 } | |
2409 } | |
2410 | |
132
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2411 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2412 Klass* k = SystemDictionary::box_klass(type); |
132
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2413 if (k == NULL) return NULL; |
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2414 instanceKlassHandle h (THREAD, k); |
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2415 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2416 return h->allocate_instance(THREAD); |
0 | 2417 } |
2418 | |
2419 | |
2420 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2421 oop box = initialize_and_allocate(type, CHECK_0); |
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2422 if (box == NULL) return NULL; |
0 | 2423 switch (type) { |
2424 case T_BOOLEAN: | |
2425 box->bool_field_put(value_offset, value->z); | |
2426 break; | |
2427 case T_CHAR: | |
2428 box->char_field_put(value_offset, value->c); | |
2429 break; | |
2430 case T_FLOAT: | |
2431 box->float_field_put(value_offset, value->f); | |
2432 break; | |
2433 case T_DOUBLE: | |
165
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2434 box->double_field_put(long_value_offset, value->d); |
0 | 2435 break; |
2436 case T_BYTE: | |
2437 box->byte_field_put(value_offset, value->b); | |
2438 break; | |
2439 case T_SHORT: | |
2440 box->short_field_put(value_offset, value->s); | |
2441 break; | |
2442 case T_INT: | |
2443 box->int_field_put(value_offset, value->i); | |
2444 break; | |
2445 case T_LONG: | |
165
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2446 box->long_field_put(long_value_offset, value->j); |
0 | 2447 break; |
2448 default: | |
2449 return NULL; | |
2450 } | |
2451 return box; | |
2452 } | |
2453 | |
2454 | |
132
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2455 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2456 if (box == NULL) return T_ILLEGAL; |
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|
2457 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2458 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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|
2459 return T_ILLEGAL; |
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2460 return type; |
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|
2461 } |
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2462 |
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2463 |
0 | 2464 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2465 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2466 switch (type) { |
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2467 case T_BOOLEAN: |
0 | 2468 value->z = box->bool_field(value_offset); |
132
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|
2469 break; |
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2470 case T_CHAR: |
0 | 2471 value->c = box->char_field(value_offset); |
132
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2472 break; |
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parents:
113
diff
changeset
|
2473 case T_FLOAT: |
0 | 2474 value->f = box->float_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2475 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2476 case T_DOUBLE: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2477 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
|
2478 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2479 case T_BYTE: |
0 | 2480 value->b = box->byte_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2481 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2482 case T_SHORT: |
0 | 2483 value->s = box->short_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2484 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2485 case T_INT: |
0 | 2486 value->i = box->int_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2487 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2488 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2489 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
|
2490 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2491 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2492 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2493 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2494 return type; |
0 | 2495 } |
2496 | |
2497 | |
2498 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
|
2499 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2500 switch (type) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2501 case T_BOOLEAN: |
0 | 2502 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
|
2503 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2504 case T_CHAR: |
0 | 2505 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
|
2506 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2507 case T_FLOAT: |
0 | 2508 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
|
2509 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2510 case T_DOUBLE: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2511 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
|
2512 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2513 case T_BYTE: |
0 | 2514 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
|
2515 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2516 case T_SHORT: |
0 | 2517 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
|
2518 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2519 case T_INT: |
0 | 2520 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
|
2521 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2522 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2523 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
|
2524 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2525 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2526 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2527 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2528 return type; |
0 | 2529 } |
2530 | |
2531 | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2532 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
|
2533 switch (type) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2534 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2535 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2536 case T_BYTE: st->print("%d", value->b); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2537 case T_SHORT: st->print("%d", value->s); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2538 case T_INT: st->print("%d", value->i); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2539 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2540 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2541 case T_DOUBLE: st->print("%lf", value->d); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2542 default: st->print("type %d?", type); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2543 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2544 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2545 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2546 |
0 | 2547 // Support for java_lang_ref_Reference |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2548 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2549 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2550 address addr = ik->static_field_addr(static_lock_offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2551 return (HeapWord*) addr; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2552 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2553 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2554 oop java_lang_ref_Reference::pending_list_lock() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2555 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2556 address addr = ik->static_field_addr(static_lock_offset); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2557 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2558 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
|
2559 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2560 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
|
2561 } |
0 | 2562 } |
2563 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2564 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2565 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2566 address addr = ik->static_field_addr(static_pending_offset); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2567 // 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
|
2568 return (HeapWord*)addr; |
0 | 2569 } |
2570 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2571 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
|
2572 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
|
2573 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2574 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
|
2575 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2576 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
|
2577 } |
0 | 2578 } |
2579 | |
2580 | |
2581 // Support for java_lang_ref_SoftReference | |
2582 | |
2583 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2584 return ref->long_field(timestamp_offset); | |
2585 } | |
2586 | |
2587 jlong java_lang_ref_SoftReference::clock() { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2588 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2589 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2590 return *offset; |
0 | 2591 } |
2592 | |
2593 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2594 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2595 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2596 *offset = value; |
0 | 2597 } |
2598 | |
12010
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2599 // Support for java_lang_invoke_DirectMethodHandle |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2600 |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2601 int java_lang_invoke_DirectMethodHandle::_member_offset; |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2602 |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2603 oop java_lang_invoke_DirectMethodHandle::member(oop dmh) { |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2604 oop member_name = NULL; |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2605 bool is_dmh = dmh->is_oop() && java_lang_invoke_DirectMethodHandle::is_instance(dmh); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2606 assert(is_dmh, "a DirectMethodHandle oop is expected"); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2607 if (is_dmh) { |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2608 member_name = dmh->obj_field(member_offset_in_bytes()); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2609 } |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2610 return member_name; |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2611 } |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2612 |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2613 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2614 Klass* klass_oop = SystemDictionary::DirectMethodHandle_klass(); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2615 if (klass_oop != NULL && EnableInvokeDynamic) { |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2616 compute_offset(_member_offset, klass_oop, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2617 } |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2618 } |
0 | 2619 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2620 // Support for java_lang_invoke_MethodHandle |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2621 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2622 int java_lang_invoke_MethodHandle::_type_offset; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2623 int java_lang_invoke_MethodHandle::_form_offset; |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2624 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2625 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
|
2626 int java_lang_invoke_MemberName::_name_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2627 int java_lang_invoke_MemberName::_type_offset; |
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2628 int java_lang_invoke_MemberName::_flags_offset; |
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2629 int java_lang_invoke_MemberName::_vmtarget_offset; |
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2630 int java_lang_invoke_MemberName::_vmloader_offset; |
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2631 int java_lang_invoke_MemberName::_vmindex_offset; |
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2632 |
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2633 int java_lang_invoke_LambdaForm::_vmentry_offset; |
3905
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2634 |
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2635 void java_lang_invoke_MethodHandle::compute_offsets() { |
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2636 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
3938 | 2637 if (klass_oop != NULL && EnableInvokeDynamic) { |
6266
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2638 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
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2639 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
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2640 if (_form_offset == 0) { |
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2641 EnableInvokeDynamic = false; |
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2642 } |
710 | 2643 } |
2644 } | |
2645 | |
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2646 void java_lang_invoke_MemberName::compute_offsets() { |
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2647 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
3938 | 2648 if (klass_oop != NULL && EnableInvokeDynamic) { |
2649 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2650 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2651 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2652 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2653 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2654 } |
2655 } | |
2656 | |
6266
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2657 void java_lang_invoke_LambdaForm::compute_offsets() { |
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2658 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
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2659 if (klass_oop != NULL && EnableInvokeDynamic) { |
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|
2660 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
710 | 2661 } |
2662 } | |
2663 | |
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|
2664 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2665 return mh->obj_field(_type_offset); |
2666 } | |
2667 | |
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2668 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2669 mh->obj_field_put(_type_offset, mtype); |
2670 } | |
2671 | |
6266
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|
2672 oop java_lang_invoke_MethodHandle::form(oop mh) { |
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|
2673 assert(_form_offset != 0, ""); |
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|
2674 return mh->obj_field(_form_offset); |
710 | 2675 } |
2676 | |
6266
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|
2677 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { |
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|
2678 assert(_form_offset != 0, ""); |
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|
2679 mh->obj_field_put(_form_offset, lform); |
710 | 2680 } |
2681 | |
2682 /// MemberName accessors | |
2683 | |
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|
2684 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2685 assert(is_instance(mname), "wrong type"); |
2686 return mname->obj_field(_clazz_offset); | |
2687 } | |
2688 | |
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|
2689 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2690 assert(is_instance(mname), "wrong type"); |
2691 mname->obj_field_put(_clazz_offset, clazz); | |
2692 } | |
2693 | |
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|
2694 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2695 assert(is_instance(mname), "wrong type"); |
2696 return mname->obj_field(_name_offset); | |
2697 } | |
2698 | |
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|
2699 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2700 assert(is_instance(mname), "wrong type"); |
2701 mname->obj_field_put(_name_offset, name); | |
2702 } | |
2703 | |
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|
2704 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2705 assert(is_instance(mname), "wrong type"); |
2706 return mname->obj_field(_type_offset); | |
2707 } | |
2708 | |
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|
2709 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2710 assert(is_instance(mname), "wrong type"); |
2711 mname->obj_field_put(_type_offset, type); | |
2712 } | |
2713 | |
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|
2714 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2715 assert(is_instance(mname), "wrong type"); |
2716 return mname->int_field(_flags_offset); | |
2717 } | |
2718 | |
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2719 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2720 assert(is_instance(mname), "wrong type"); |
2721 mname->int_field_put(_flags_offset, flags); | |
2722 } | |
2723 | |
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2724 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2725 assert(is_instance(mname), "wrong type"); |
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|
2726 return (Metadata*)mname->address_field(_vmtarget_offset); |
710 | 2727 } |
2728 | |
10133
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
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|
2729 #if INCLUDE_JVMTI |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
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|
2730 // Can be executed on VM thread only |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
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|
2731 void java_lang_invoke_MemberName::adjust_vmtarget(oop mname, Metadata* ref) { |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
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|
2732 assert((is_instance(mname) && (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0), "wrong type"); |
6337ca4dcad8
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|
2733 assert(Thread::current()->is_VM_thread(), "not VM thread"); |
6337ca4dcad8
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diff
changeset
|
2734 mname->address_field_put(_vmtarget_offset, (address)ref); |
6337ca4dcad8
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|
2735 } |
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|
2736 #endif // INCLUDE_JVMTI |
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|
2737 |
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|
2738 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
710 | 2739 assert(is_instance(mname), "wrong type"); |
6266
1d7922586cf6
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|
2740 // check the type of the vmtarget |
7185
90273fc0a981
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|
2741 oop dependency = NULL; |
6266
1d7922586cf6
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diff
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|
2742 if (ref != NULL) { |
1d7922586cf6
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|
2743 switch (flags(mname) & (MN_IS_METHOD | |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
2744 MN_IS_CONSTRUCTOR | |
1d7922586cf6
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6224
diff
changeset
|
2745 MN_IS_FIELD)) { |
1d7922586cf6
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6224
diff
changeset
|
2746 case MN_IS_METHOD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2747 case MN_IS_CONSTRUCTOR: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2748 assert(ref->is_method(), "should be a method"); |
7185
90273fc0a981
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diff
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|
2749 dependency = ((Method*)ref)->method_holder()->java_mirror(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2750 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2751 case MN_IS_FIELD: |
1d7922586cf6
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6224
diff
changeset
|
2752 assert(ref->is_klass(), "should be a class"); |
7185
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|
2753 dependency = ((Klass*)ref)->java_mirror(); |
6266
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6224
diff
changeset
|
2754 break; |
1d7922586cf6
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6224
diff
changeset
|
2755 default: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2756 ShouldNotReachHere(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2757 } |
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|
2758 } |
6725
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6267
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|
2759 mname->address_field_put(_vmtarget_offset, (address)ref); |
7185
90273fc0a981
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|
2760 // Add a reference to the loader (actually mirror because anonymous classes will not have |
90273fc0a981
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|
2761 // distinct loaders) to ensure the metadata is kept alive |
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|
2762 // This mirror may be different than the one in clazz field. |
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|
2763 mname->obj_field_put(_vmloader_offset, dependency); |
710 | 2764 } |
2765 | |
6266
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|
2766 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2767 assert(is_instance(mname), "wrong type"); |
6266
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diff
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|
2768 return (intptr_t) mname->address_field(_vmindex_offset); |
710 | 2769 } |
2770 | |
6266
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|
2771 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) { |
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|
2772 assert(is_instance(mname), "wrong type"); |
1d7922586cf6
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diff
changeset
|
2773 mname->address_field_put(_vmindex_offset, (address) index); |
710 | 2774 } |
2775 | |
6266
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|
2776 oop java_lang_invoke_LambdaForm::vmentry(oop lform) { |
1d7922586cf6
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6224
diff
changeset
|
2777 assert(is_instance(lform), "wrong type"); |
1d7922586cf6
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6224
diff
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|
2778 return lform->obj_field(_vmentry_offset); |
710 | 2779 } |
2780 | |
2781 | |
2357
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|
2782 // Support for java_lang_invoke_MethodType |
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|
2783 |
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|
2784 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2785 int java_lang_invoke_MethodType::_ptypes_offset; |
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|
2786 |
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|
2787 void java_lang_invoke_MethodType::compute_offsets() { |
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|
2788 Klass* k = SystemDictionary::MethodType_klass(); |
710 | 2789 if (k != NULL) { |
2790 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2791 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2792 } | |
2793 } | |
2794 | |
2357
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diff
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|
2795 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2796 st->print("("); |
2797 objArrayOop pts = ptypes(mt); | |
2798 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2799 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2800 } | |
2801 st->print(")"); | |
2802 java_lang_Class::print_signature(rtype(mt), st); | |
2803 } | |
2804 | |
2357
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|
2805 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2806 ResourceMark rm; |
2807 stringStream buffer(128); | |
2808 print_signature(mt, &buffer); | |
2809 const char* sigstr = buffer.base(); | |
2810 int siglen = (int) buffer.size(); | |
2177
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diff
changeset
|
2811 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
2812 if (!intern_if_not_found) { |
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|
2813 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
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diff
changeset
|
2814 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2815 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
2816 } |
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6990754: Use native memory and reference counting to implement SymbolTable
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parents:
1989
diff
changeset
|
2817 return name; |
710 | 2818 } |
2819 | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
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3363
diff
changeset
|
2820 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
changeset
|
2821 if (mt1 == mt2) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2822 return true; |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2823 if (rtype(mt1) != rtype(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2824 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2825 if (ptype_count(mt1) != ptype_count(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2826 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2827 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2828 if (ptype(mt1, i) != ptype(mt2, i)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2829 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2830 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2831 return true; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2832 } |
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parents:
3363
diff
changeset
|
2833 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2834 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2835 assert(is_instance(mt), "must be a MethodType"); |
2836 return mt->obj_field(_rtype_offset); | |
2837 } | |
2838 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2839 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2840 assert(is_instance(mt), "must be a MethodType"); |
2841 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2842 } | |
2843 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2844 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2845 return ptypes(mt)->obj_at(idx); |
2846 } | |
2847 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2848 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
1133
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2849 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2850 } |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
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1096
diff
changeset
|
2851 |
6266
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|
2852 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
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changeset
|
2853 objArrayOop pts = ptypes(mt); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2854 int count = pts->length(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2855 int slots = 0; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2856 for (int i = 0; i < count; i++) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2857 BasicType bt = java_lang_Class::as_BasicType(pts->obj_at(i)); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
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|
2858 slots += type2size[bt]; |
710 | 2859 } |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2860 return slots; |
710 | 2861 } |
2862 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
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|
2863 int java_lang_invoke_MethodType::rtype_slot_count(oop mt) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2864 BasicType bt = java_lang_Class::as_BasicType(rtype(mt)); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2865 return type2size[bt]; |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2866 } |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2867 |
710 | 2868 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2869 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2870 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2871 int java_lang_invoke_CallSite::_target_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2872 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2873 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2874 if (!EnableInvokeDynamic) return; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2875 Klass* k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2876 if (k != NULL) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2877 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2878 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2879 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2880 |
710 | 2881 |
0 | 2882 // Support for java_security_AccessControlContext |
2883 | |
2884 int java_security_AccessControlContext::_context_offset = 0; | |
2885 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2886 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
11010 | 2887 int java_security_AccessControlContext::_isAuthorized_offset = -1; |
0 | 2888 |
2889 void java_security_AccessControlContext::compute_offsets() { | |
2890 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2891 fieldDescriptor fd; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2892 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
0 | 2893 |
2894 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2895 fatal("Invalid layout of java.security.AccessControlContext"); | |
2896 } | |
2897 _context_offset = fd.offset(); | |
2898 | |
2899 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2900 fatal("Invalid layout of java.security.AccessControlContext"); | |
2901 } | |
2902 _privilegedContext_offset = fd.offset(); | |
2903 | |
2904 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2905 fatal("Invalid layout of java.security.AccessControlContext"); | |
2906 } | |
2907 _isPrivileged_offset = fd.offset(); | |
11010 | 2908 |
2909 // The offset may not be present for bootstrapping with older JDK. | |
2910 if (ik->find_local_field(vmSymbols::isAuthorized_name(), vmSymbols::bool_signature(), &fd)) { | |
2911 _isAuthorized_offset = fd.offset(); | |
2912 } | |
0 | 2913 } |
2914 | |
2915 | |
11010 | 2916 bool java_security_AccessControlContext::is_authorized(Handle context) { |
2917 assert(context.not_null() && context->klass() == SystemDictionary::AccessControlContext_klass(), "Invalid type"); | |
2918 assert(_isAuthorized_offset != -1, "should be set"); | |
2919 return context->bool_field(_isAuthorized_offset) != 0; | |
2920 } | |
0 | 2921 |
2922 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2923 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2924 // Ensure klass is initialized | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2925 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
0 | 2926 // Allocate result |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2927 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
0 | 2928 // Fill in values |
2929 result->obj_field_put(_context_offset, context()); | |
2930 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2931 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
11011
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2932 // whitelist AccessControlContexts created by the JVM if present |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2933 if (_isAuthorized_offset != -1) { |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2934 result->bool_field_put(_isAuthorized_offset, true); |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2935 } |
0 | 2936 return result; |
2937 } | |
2938 | |
2939 | |
2940 // Support for java_lang_ClassLoader | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2941 |
3938 | 2942 bool java_lang_ClassLoader::offsets_computed = false; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2943 int java_lang_ClassLoader::_loader_data_offset = -1; |
3938 | 2944 int java_lang_ClassLoader::parallelCapable_offset = -1; |
2945 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2946 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2947 assert(loader != NULL && loader->is_oop(), "loader must be oop"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2948 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2949 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2950 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2951 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2952 return *java_lang_ClassLoader::loader_data_addr(loader); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2953 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2954 |
3938 | 2955 void java_lang_ClassLoader::compute_offsets() { |
2956 assert(!offsets_computed, "offsets should be initialized only once"); | |
2957 offsets_computed = true; | |
2958 | |
2959 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2960 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
3938 | 2961 compute_optional_offset(parallelCapable_offset, |
2962 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2963 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2964 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
3938 | 2965 } |
0 | 2966 |
2967 oop java_lang_ClassLoader::parent(oop loader) { | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2968 assert(is_instance(loader), "loader must be oop"); |
0 | 2969 return loader->obj_field(parent_offset); |
2970 } | |
2971 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2972 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2973 assert(is_instance(loader), "loader must be oop"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2974 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2975 oop acl = loader; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2976 debug_only(jint loop_count = 0); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2977 // This loop taken verbatim from ClassLoader.java: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2978 do { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2979 acl = parent(acl); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2980 if (cl == acl) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2981 return true; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2982 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2983 assert(++loop_count > 0, "loop_count overflow"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2984 } while (acl != NULL); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2985 return false; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2986 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2987 |
0 | 2988 |
3938 | 2989 // For class loader classes, parallelCapable defined |
2990 // based on non-null field | |
2991 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
2992 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
2993 if (!JDK_Version::is_gte_jdk17x_version() | |
2994 || parallelCapable_offset == -1) { | |
2995 // Default for backward compatibility is false | |
2996 return false; | |
2997 } | |
2998 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
2999 } | |
3000 | |
0 | 3001 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
3002 // Fix for 4474172; see evaluation for more details | |
3003 loader = non_reflection_class_loader(loader); | |
3004 | |
3005 oop cl = SystemDictionary::java_system_loader(); | |
3006 while(cl != NULL) { | |
3007 if (cl == loader) return true; | |
3008 cl = parent(cl); | |
3009 } | |
3010 return false; | |
3011 } | |
3012 | |
3013 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
3014 if (loader != NULL) { | |
3015 // See whether this is one of the class loaders associated with | |
3016 // the generated bytecodes for reflection, and if so, "magically" | |
3017 // delegate to its parent to prevent class loading from occurring | |
3018 // in places where applications using reflection didn't expect it. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
3019 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 3020 // This might be null in non-1.4 JDKs |
3021 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
3022 return parent(loader); | |
3023 } | |
3024 } | |
3025 return loader; | |
3026 } | |
3027 | |
3028 | |
3029 // Support for java_lang_System | |
3030 int java_lang_System::in_offset_in_bytes() { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3031 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 3032 } |
3033 | |
3034 | |
3035 int java_lang_System::out_offset_in_bytes() { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3036 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 3037 } |
3038 | |
3039 | |
3040 int java_lang_System::err_offset_in_bytes() { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3041 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 3042 } |
3043 | |
3044 | |
11010 | 3045 bool java_lang_System::has_security_manager() { |
3046 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::System_klass()); | |
3047 address addr = ik->static_field_addr(static_security_offset); | |
3048 if (UseCompressedOops) { | |
3049 return oopDesc::load_decode_heap_oop((narrowOop *)addr) != NULL; | |
3050 } else { | |
3051 return oopDesc::load_decode_heap_oop((oop*)addr) != NULL; | |
3052 } | |
3053 } | |
0 | 3054 |
3938 | 3055 int java_lang_Class::_klass_offset; |
3056 int java_lang_Class::_array_klass_offset; | |
3057 int java_lang_Class::_oop_size_offset; | |
3058 int java_lang_Class::_static_oop_field_count_offset; | |
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3059 int java_lang_Class::_protection_domain_offset; |
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3060 int java_lang_Class::_init_lock_offset; |
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3061 int java_lang_Class::_signers_offset; |
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3062 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
0 | 3063 int java_lang_Throwable::backtrace_offset; |
3064 int java_lang_Throwable::detailMessage_offset; | |
3065 int java_lang_Throwable::cause_offset; | |
3066 int java_lang_Throwable::stackTrace_offset; | |
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3067 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 3068 int java_lang_reflect_AccessibleObject::override_offset; |
3069 int java_lang_reflect_Method::clazz_offset; | |
3070 int java_lang_reflect_Method::name_offset; | |
3071 int java_lang_reflect_Method::returnType_offset; | |
3072 int java_lang_reflect_Method::parameterTypes_offset; | |
3073 int java_lang_reflect_Method::exceptionTypes_offset; | |
3074 int java_lang_reflect_Method::slot_offset; | |
3075 int java_lang_reflect_Method::modifiers_offset; | |
3076 int java_lang_reflect_Method::signature_offset; | |
3077 int java_lang_reflect_Method::annotations_offset; | |
3078 int java_lang_reflect_Method::parameter_annotations_offset; | |
3079 int java_lang_reflect_Method::annotation_default_offset; | |
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diff
changeset
|
3080 int java_lang_reflect_Method::type_annotations_offset; |
0 | 3081 int java_lang_reflect_Constructor::clazz_offset; |
3082 int java_lang_reflect_Constructor::parameterTypes_offset; | |
3083 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
3084 int java_lang_reflect_Constructor::slot_offset; | |
3085 int java_lang_reflect_Constructor::modifiers_offset; | |
3086 int java_lang_reflect_Constructor::signature_offset; | |
3087 int java_lang_reflect_Constructor::annotations_offset; | |
3088 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
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changeset
|
3089 int java_lang_reflect_Constructor::type_annotations_offset; |
0 | 3090 int java_lang_reflect_Field::clazz_offset; |
3091 int java_lang_reflect_Field::name_offset; | |
3092 int java_lang_reflect_Field::type_offset; | |
3093 int java_lang_reflect_Field::slot_offset; | |
3094 int java_lang_reflect_Field::modifiers_offset; | |
3095 int java_lang_reflect_Field::signature_offset; | |
3096 int java_lang_reflect_Field::annotations_offset; | |
7457
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|
3097 int java_lang_reflect_Field::type_annotations_offset; |
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|
3098 int java_lang_reflect_Parameter::name_offset; |
ade95d680b42
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changeset
|
3099 int java_lang_reflect_Parameter::modifiers_offset; |
ade95d680b42
8004728: Add hotspot support for parameter reflection
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changeset
|
3100 int java_lang_reflect_Parameter::index_offset; |
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changeset
|
3101 int java_lang_reflect_Parameter::executable_offset; |
0 | 3102 int java_lang_boxing_object::value_offset; |
165
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|
3103 int java_lang_boxing_object::long_value_offset; |
0 | 3104 int java_lang_ref_Reference::referent_offset; |
3105 int java_lang_ref_Reference::queue_offset; | |
3106 int java_lang_ref_Reference::next_offset; | |
3107 int java_lang_ref_Reference::discovered_offset; | |
3108 int java_lang_ref_Reference::static_lock_offset; | |
3109 int java_lang_ref_Reference::static_pending_offset; | |
3110 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
3111 int java_lang_ref_SoftReference::timestamp_offset; | |
3112 int java_lang_ref_SoftReference::static_clock_offset; | |
3113 int java_lang_ClassLoader::parent_offset; | |
3114 int java_lang_System::static_in_offset; | |
3115 int java_lang_System::static_out_offset; | |
3116 int java_lang_System::static_err_offset; | |
11010 | 3117 int java_lang_System::static_security_offset; |
0 | 3118 int java_lang_StackTraceElement::declaringClass_offset; |
3119 int java_lang_StackTraceElement::methodName_offset; | |
3120 int java_lang_StackTraceElement::fileName_offset; | |
3121 int java_lang_StackTraceElement::lineNumber_offset; | |
3122 int java_lang_AssertionStatusDirectives::classes_offset; | |
3123 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
3124 int java_lang_AssertionStatusDirectives::packages_offset; | |
3125 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
3126 int java_lang_AssertionStatusDirectives::deflt_offset; | |
3127 int java_nio_Buffer::_limit_offset; | |
3128 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
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|
3129 int sun_reflect_ConstantPool::_oop_offset; |
0 | 3130 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
3131 | |
3132 | |
3133 // Support for java_lang_StackTraceElement | |
3134 | |
3135 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
3136 element->obj_field_put(fileName_offset, value); | |
3137 } | |
3138 | |
3139 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
3140 element->obj_field_put(declaringClass_offset, value); | |
3141 } | |
3142 | |
3143 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
3144 element->obj_field_put(methodName_offset, value); | |
3145 } | |
3146 | |
3147 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
3148 element->int_field_put(lineNumber_offset, value); | |
3149 } | |
3150 | |
3151 | |
3152 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
3153 | |
3154 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
3155 o->obj_field_put(classes_offset, val); | |
3156 } | |
3157 | |
3158 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
3159 o->obj_field_put(classEnabled_offset, val); | |
3160 } | |
3161 | |
3162 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
3163 o->obj_field_put(packages_offset, val); | |
3164 } | |
3165 | |
3166 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
3167 o->obj_field_put(packageEnabled_offset, val); | |
3168 } | |
3169 | |
3170 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
3171 o->bool_field_put(deflt_offset, val); | |
3172 } | |
3173 | |
3174 | |
3175 // Support for intrinsification of java.nio.Buffer.checkIndex | |
3176 int java_nio_Buffer::limit_offset() { | |
3177 return _limit_offset; | |
3178 } | |
3179 | |
3180 | |
3181 void java_nio_Buffer::compute_offsets() { | |
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|
3182 Klass* k = SystemDictionary::nio_Buffer_klass(); |
132
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jrose
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|
3183 assert(k != NULL, "must be loaded in 1.4+"); |
60b728ec77c1
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|
3184 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 3185 } |
3186 | |
3187 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
3188 if (_owner_offset != 0) return; | |
3189 | |
3190 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
3191 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
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3192 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
132
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|
3193 compute_offset(_owner_offset, k, |
0 | 3194 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
3195 } | |
3196 | |
3197 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
3198 assert(_owner_offset != 0, "Must be initialized"); | |
3199 return obj->obj_field(_owner_offset); | |
3200 } | |
3201 | |
3202 // Compute hard-coded offsets | |
3203 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
3204 // are not available to determine the offset_of_static_fields. | |
3205 void JavaClasses::compute_hard_coded_offsets() { | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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98
diff
changeset
|
3206 const int x = heapOopSize; |
165
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kvn
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132
diff
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|
3207 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 3208 |
3209 // Throwable Class | |
3210 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3211 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3212 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3213 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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|
3214 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3215 |
3216 // java_lang_boxing_object | |
165
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132
diff
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|
3217 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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kvn
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diff
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|
3218 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3219 |
3220 // java_lang_ref_Reference: | |
3221 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3222 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3223 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3224 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3225 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3226 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3227 // Artificial fields for java_lang_ref_Reference | |
3228 // The first field is for the discovered field added in 1.4 | |
3229 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3230 | |
3231 // java_lang_ref_SoftReference Class | |
165
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|
3232 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3233 // Don't multiply static fields because they are always in wordSize units |
3234 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3235 | |
3236 // java_lang_ClassLoader | |
3237 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3238 | |
3239 // java_lang_System | |
3240 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3241 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3242 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
11010 | 3243 java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x; |
0 | 3244 |
3245 // java_lang_StackTraceElement | |
3246 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3247 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3248 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3249 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3250 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3251 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3252 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3253 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3254 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3255 | |
3256 } | |
3257 | |
3258 | |
3259 // Compute non-hard-coded field offsets of all the classes in this file | |
3260 void JavaClasses::compute_offsets() { | |
3938 | 3261 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3262 java_lang_ClassLoader::compute_offsets(); | |
0 | 3263 java_lang_Thread::compute_offsets(); |
3264 java_lang_ThreadGroup::compute_offsets(); | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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2379
diff
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|
3265 if (EnableInvokeDynamic) { |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
3266 java_lang_invoke_MethodHandle::compute_offsets(); |
12010
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
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11020
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|
3267 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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diff
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|
3268 java_lang_invoke_MemberName::compute_offsets(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
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|
3269 java_lang_invoke_LambdaForm::compute_offsets(); |
2357
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jrose
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diff
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|
3270 java_lang_invoke_MethodType::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
3271 java_lang_invoke_CallSite::compute_offsets(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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710
diff
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|
3272 } |
0 | 3273 java_security_AccessControlContext::compute_offsets(); |
3274 // Initialize reflection classes. The layouts of these classes | |
3275 // changed with the new reflection implementation in JDK 1.4, and | |
3276 // since the Universe doesn't know what JDK version it is until this | |
3277 // point we defer computation of these offsets until now. | |
3278 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3279 java_lang_reflect_Method::compute_offsets(); | |
3280 java_lang_reflect_Constructor::compute_offsets(); | |
3281 java_lang_reflect_Field::compute_offsets(); | |
3282 if (JDK_Version::is_gte_jdk14x_version()) { | |
3283 java_nio_Buffer::compute_offsets(); | |
3284 } | |
3285 if (JDK_Version::is_gte_jdk15x_version()) { | |
3286 sun_reflect_ConstantPool::compute_offsets(); | |
3287 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3288 } | |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
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|
3289 if (JDK_Version::is_jdk18x_version()) |
ade95d680b42
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coleenp
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7458
diff
changeset
|
3290 java_lang_reflect_Parameter::compute_offsets(); |
710 | 3291 |
3292 // generated interpreter code wants to know about the offsets we just computed: | |
3293 AbstractAssembler::update_delayed_values(); | |
0 | 3294 } |
3295 | |
3296 #ifndef PRODUCT | |
3297 | |
3298 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3299 // against changes in the class files | |
3300 | |
3301 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3302 EXCEPTION_MARK; | |
3303 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3304 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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6267
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|
3305 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3306 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3307 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
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|
3308 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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diff
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|
3309 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3310 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3311 return false; | |
3312 } | |
3313 if (fd.is_static()) { | |
3314 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3315 return false; | |
3316 } | |
3317 if (fd.offset() == hardcoded_offset ) { | |
3318 return true; | |
3319 } else { | |
3320 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3321 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3322 return false; | |
3323 } | |
3324 } | |
3325 | |
3326 | |
3327 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3328 EXCEPTION_MARK; | |
3329 fieldDescriptor fd; | |
2177
3582bf76420e
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diff
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|
3330 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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|
3331 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3332 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
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diff
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|
3333 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
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diff
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|
3334 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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coleenp
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diff
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|
3335 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3336 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3337 return false; | |
3338 } | |
3339 if (!fd.is_static()) { | |
3340 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3341 return false; | |
3342 } | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
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6725
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changeset
|
3343 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
0 | 3344 return true; |
3345 } else { | |
6735
aed758eda82a
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6725
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|
3346 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - InstanceMirrorKlass::offset_of_static_fields()); |
0 | 3347 return false; |
3348 } | |
3349 } | |
3350 | |
3351 | |
132
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3352 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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|
3353 EXCEPTION_MARK; |
60b728ec77c1
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|
3354 fieldDescriptor fd; |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
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|
3355 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
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3356 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
132
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3357 instanceKlassHandle h_klass (THREAD, k); |
2177
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1989
diff
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3358 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3359 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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3360 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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3361 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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|
3362 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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parents:
113
diff
changeset
|
3363 } |
60b728ec77c1
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parents:
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|
3364 if (!fd.is_static() || !fd.has_initial_value()) { |
60b728ec77c1
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3365 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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|
3366 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
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|
3367 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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parents:
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|
3368 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
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parents:
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|
3369 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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|
3370 return false; |
60b728ec77c1
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jrose
parents:
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|
3371 } |
60b728ec77c1
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|
3372 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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|
3373 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3374 return true; |
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
3375 } else { |
60b728ec77c1
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jrose
parents:
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|
3376 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
parents:
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|
3377 return false; |
60b728ec77c1
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jrose
parents:
113
diff
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|
3378 } |
60b728ec77c1
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jrose
parents:
113
diff
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|
3379 } |
60b728ec77c1
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|
3380 |
60b728ec77c1
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|
3381 |
0 | 3382 // Check the hard-coded field offsets of all the classes in this file |
3383 | |
3384 void JavaClasses::check_offsets() { | |
3385 bool valid = true; | |
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6267
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|
3386 HandleMark hm; |
0 | 3387 |
3388 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3389 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3390 | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
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parents:
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|
3391 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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diff
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|
3392 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
437d03ea40b1
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|
3393 |
0 | 3394 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3395 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3396 | |
132
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diff
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|
3397 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
60b728ec77c1
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jrose
parents:
113
diff
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|
3398 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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|
3399 |
0 | 3400 // java.lang.String |
3401 | |
3402 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
6057 | 3403 if (java_lang_String::has_offset_field()) { |
3404 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3405 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3406 } | |
3407 if (java_lang_String::has_hash_field()) { | |
3408 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3409 } | |
0 | 3410 |
3411 // java.lang.Class | |
3412 | |
3413 // Fake fields | |
3414 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3415 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3416 | |
3417 // java.lang.Throwable | |
3418 | |
3419 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3420 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3421 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3422 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3423 | |
3424 // Boxed primitive objects (java_lang_boxing_object) | |
3425 | |
3426 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3427 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3428 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
165
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132
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|
3429 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3430 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3431 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3432 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
165
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132
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|
3433 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3434 |
3435 // java.lang.ClassLoader | |
3436 | |
3437 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3438 | |
3439 // java.lang.System | |
3440 | |
3441 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3442 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3443 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
11010 | 3444 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, security, "Ljava/lang/SecurityManager;"); |
0 | 3445 |
3446 // java.lang.StackTraceElement | |
3447 | |
3448 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3449 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3450 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3451 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3452 | |
3453 // java.lang.ref.Reference | |
3454 | |
3455 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3456 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3457 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3458 // Fake field | |
3459 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3460 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3461 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3462 | |
3463 // java.lang.ref.SoftReference | |
3464 | |
3465 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3466 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3467 | |
3468 // java.lang.AssertionStatusDirectives | |
3469 // | |
3470 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3471 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3472 // into merlin "for some time." Without it, the vm will fail with early | |
3473 // merlin builds. | |
3474 | |
3475 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3476 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3477 const char* sig = "[Ljava/lang/String;"; | |
3478 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3479 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3480 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3481 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3482 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3483 } | |
3484 | |
3485 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3486 } | |
3487 | |
3488 #endif // PRODUCT | |
3489 | |
3938 | 3490 int InjectedField::compute_offset() { |
6725
da91efe96a93
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coleenp
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6267
diff
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|
3491 Klass* klass_oop = klass(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
3492 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
3938 | 3493 if (!may_be_java && !fs.access_flags().is_internal()) { |
3494 // Only look at injected fields | |
3495 continue; | |
3496 } | |
3497 if (fs.name() == name() && fs.signature() == signature()) { | |
3498 return fs.offset(); | |
3499 } | |
3500 } | |
3501 ResourceMark rm; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
3502 tty->print_cr("Invalid layout of %s at %s/%s%s", InstanceKlass::cast(klass_oop)->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : ""); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3503 #ifndef PRODUCT |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3504 klass_oop->print(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3505 tty->print_cr("all fields:"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3506 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3507 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3508 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3509 #endif //PRODUCT |
3938 | 3510 fatal("Invalid layout of preloaded class"); |
3511 return -1; | |
3512 } | |
3513 | |
0 | 3514 void javaClasses_init() { |
3515 JavaClasses::compute_offsets(); | |
3516 JavaClasses::check_offsets(); | |
3517 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3518 } |