Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 17946:997fd9660dd5
8027230: Overflow in java.lang.instrument.Instrumentation.getObjectSize() method
Reviewed-by: dholmes, sspitsyn
author | allwin |
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date | Thu, 22 May 2014 09:12:29 +0200 |
parents | 78bbf4d43a14 |
children | 52b4284cb496 27188ae8bbbb |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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 |
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54 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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55 |
3938 | 56 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
57 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
58 | |
59 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
60 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
61 | |
62 InjectedField JavaClasses::_injected_fields[] = { | |
63 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
64 }; | |
65 | |
66 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
67 return _injected_fields[id].compute_offset(); | |
68 } | |
69 | |
70 | |
71 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
72 *field_count = 0; | |
73 | |
74 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
75 if (sid == vmSymbols::NO_SID) { | |
76 // Only well known classes can inject fields | |
77 return NULL; | |
78 } | |
79 | |
80 int count = 0; | |
81 int start = -1; | |
82 | |
83 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
84 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
85 count++; \ | |
86 if (start == -1) start = klass##_##name##_enum; \ | |
87 } | |
88 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
89 #undef LOOKUP_INJECTED_FIELD | |
90 | |
91 if (start != -1) { | |
92 *field_count = count; | |
93 return _injected_fields + start; | |
94 } | |
95 return NULL; | |
96 } | |
97 | |
98 | |
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99 static bool find_field(InstanceKlass* ik, |
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100 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 101 fieldDescriptor* fd, |
102 bool allow_super = false) { | |
103 if (allow_super) | |
104 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
105 else | |
106 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
107 } | |
108 | |
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109 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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110 static void |
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111 compute_offset(int &dest_offset, |
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112 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 113 bool allow_super = false) { |
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114 fieldDescriptor fd; |
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115 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 116 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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117 ResourceMark rm; |
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118 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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119 #ifndef PRODUCT |
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120 klass_oop->print(); |
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121 tty->print_cr("all fields:"); |
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122 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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123 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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124 } |
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125 #endif //PRODUCT |
132
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126 fatal("Invalid layout of preloaded class"); |
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127 } |
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128 dest_offset = fd.offset(); |
0 | 129 } |
130 | |
131 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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132 static void |
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133 compute_optional_offset(int& dest_offset, |
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134 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 135 bool allow_super = false) { |
132
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136 fieldDescriptor fd; |
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137 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 138 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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139 dest_offset = fd.offset(); |
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140 } |
0 | 141 } |
142 | |
710 | 143 |
6057 | 144 int java_lang_String::value_offset = 0; |
145 int java_lang_String::offset_offset = 0; | |
146 int java_lang_String::count_offset = 0; | |
147 int java_lang_String::hash_offset = 0; | |
148 | |
149 bool java_lang_String::initialized = false; | |
150 | |
151 void java_lang_String::compute_offsets() { | |
152 assert(!initialized, "offsets should be initialized only once"); | |
153 | |
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154 Klass* k = SystemDictionary::String_klass(); |
6057 | 155 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); |
156 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
157 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
158 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
159 | |
160 initialized = true; | |
161 } | |
162 | |
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163 Handle java_lang_String::basic_create(int length, TRAPS) { |
6057 | 164 assert(initialized, "Must be initialized"); |
0 | 165 // Create the String object first, so there's a chance that the String |
166 // and the char array it points to end up in the same cache line. | |
167 oop obj; | |
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168 obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 169 |
170 // Create the char array. The String object must be handlized here | |
171 // because GC can happen as a result of the allocation attempt. | |
172 Handle h_obj(THREAD, obj); | |
173 typeArrayOop buffer; | |
174 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
175 | |
176 // Point the String at the char array | |
177 obj = h_obj(); | |
178 set_value(obj, buffer); | |
179 // No need to zero the offset, allocation zero'ed the entire String object | |
180 assert(offset(obj) == 0, "initial String offset should be zero"); | |
181 //set_offset(obj, 0); | |
182 set_count(obj, length); | |
183 | |
184 return h_obj; | |
185 } | |
186 | |
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187 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { |
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188 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 189 typeArrayOop buffer = value(h_obj()); |
190 for (int index = 0; index < length; index++) { | |
191 buffer->char_at_put(index, unicode[index]); | |
192 } | |
193 return h_obj; | |
194 } | |
195 | |
196 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
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197 Handle h_obj = create_from_unicode(unicode, length, CHECK_0); |
0 | 198 return h_obj(); |
199 } | |
200 | |
201 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
202 if (utf8_str == NULL) { | |
203 return Handle(); | |
204 } | |
205 int length = UTF8::unicode_length(utf8_str); | |
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206 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 207 if (length > 0) { |
208 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
209 } | |
210 return h_obj; | |
211 } | |
212 | |
213 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
214 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
215 return h_obj(); | |
216 } | |
217 | |
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218 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 219 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
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220 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 221 if (length > 0) { |
222 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
223 } | |
224 return h_obj; | |
225 } | |
226 | |
227 // Converts a C string to a Java String based on current encoding | |
228 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
229 assert(str != NULL, "bad arguments"); | |
230 | |
231 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
232 static to_java_string_fn_t _to_java_string_fn = NULL; | |
233 | |
234 if (_to_java_string_fn == NULL) { | |
235 void *lib_handle = os::native_java_library(); | |
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236 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 237 if (_to_java_string_fn == NULL) { |
238 fatal("NewStringPlatform missing"); | |
239 } | |
240 } | |
241 | |
242 jstring js = NULL; | |
243 { JavaThread* thread = (JavaThread*)THREAD; | |
244 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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245 HandleMark hm(thread); |
0 | 246 ThreadToNativeFromVM ttn(thread); |
247 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
248 } | |
249 return Handle(THREAD, JNIHandles::resolve(js)); | |
250 } | |
251 | |
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252 // Converts a Java String to a native C string that can be used for |
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253 // native OS calls. |
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254 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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255 |
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256 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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257 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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258 |
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259 if (_to_platform_string_fn == NULL) { |
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260 void *lib_handle = os::native_java_library(); |
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261 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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262 if (_to_platform_string_fn == NULL) { |
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263 fatal("GetStringPlatformChars missing"); |
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264 } |
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265 } |
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266 |
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267 char *native_platform_string; |
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268 { JavaThread* thread = (JavaThread*)THREAD; |
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269 assert(thread->is_Java_thread(), "must be java thread"); |
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270 JNIEnv *env = thread->jni_environment(); |
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271 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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272 bool is_copy; |
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273 HandleMark hm(thread); |
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274 ThreadToNativeFromVM ttn(thread); |
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275 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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276 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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277 JNIHandles::destroy_local(js); |
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278 } |
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279 return native_platform_string; |
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280 } |
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281 |
0 | 282 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
283 oop obj = java_string(); | |
284 // Typical usage is to convert all '/' to '.' in string. | |
285 typeArrayOop value = java_lang_String::value(obj); | |
286 int offset = java_lang_String::offset(obj); | |
287 int length = java_lang_String::length(obj); | |
288 | |
289 // First check if any from_char exist | |
290 int index; // Declared outside, used later | |
291 for (index = 0; index < length; index++) { | |
292 if (value->char_at(index + offset) == from_char) { | |
293 break; | |
294 } | |
295 } | |
296 if (index == length) { | |
297 // No from_char, so do not copy. | |
298 return java_string; | |
299 } | |
300 | |
301 // Create new UNICODE buffer. Must handlize value because GC | |
302 // may happen during String and char array creation. | |
303 typeArrayHandle h_value(THREAD, value); | |
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304 Handle string = basic_create(length, CHECK_NH); |
0 | 305 |
306 typeArrayOop from_buffer = h_value(); | |
307 typeArrayOop to_buffer = java_lang_String::value(string()); | |
308 | |
309 // Copy contents | |
310 for (index = 0; index < length; index++) { | |
311 jchar c = from_buffer->char_at(index + offset); | |
312 if (c == from_char) { | |
313 c = to_char; | |
314 } | |
315 to_buffer->char_at_put(index, c); | |
316 } | |
317 return string; | |
318 } | |
319 | |
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320 jchar* java_lang_String::as_unicode_string(oop java_string, int& length, TRAPS) { |
0 | 321 typeArrayOop value = java_lang_String::value(java_string); |
322 int offset = java_lang_String::offset(java_string); | |
323 length = java_lang_String::length(java_string); | |
324 | |
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325 jchar* result = NEW_RESOURCE_ARRAY_RETURN_NULL(jchar, length); |
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326 if (result != NULL) { |
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327 for (int index = 0; index < length; index++) { |
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328 result[index] = value->char_at(index + offset); |
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329 } |
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330 } else { |
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331 THROW_MSG_0(vmSymbols::java_lang_OutOfMemoryError(), "could not allocate Unicode string"); |
0 | 332 } |
333 return result; | |
334 } | |
335 | |
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336 unsigned int java_lang_String::hash_code(oop java_string) { |
6162 | 337 int length = java_lang_String::length(java_string); |
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338 // Zero length string will hash to zero with String.hashCode() function. |
6162 | 339 if (length == 0) return 0; |
340 | |
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341 typeArrayOop value = java_lang_String::value(java_string); |
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342 int offset = java_lang_String::offset(java_string); |
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343 return java_lang_String::hash_code(value->char_at_addr(offset), length); |
6162 | 344 } |
345 | |
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346 char* java_lang_String::as_quoted_ascii(oop java_string) { |
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347 typeArrayOop value = java_lang_String::value(java_string); |
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348 int offset = java_lang_String::offset(java_string); |
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349 int length = java_lang_String::length(java_string); |
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350 |
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351 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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352 if (base == NULL) return NULL; |
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353 |
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354 int result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
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355 char* result = NEW_RESOURCE_ARRAY(char, result_length); |
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356 UNICODE::as_quoted_ascii(base, length, result, result_length); |
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357 assert(result_length >= length + 1, "must not be shorter"); |
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358 assert(result_length == (int)strlen(result) + 1, "must match"); |
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359 return result; |
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360 } |
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361 |
6162 | 362 unsigned int java_lang_String::hash_string(oop java_string) { |
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363 int length = java_lang_String::length(java_string); |
6162 | 364 // Zero length string doesn't hash necessarily hash to zero. |
365 if (length == 0) { | |
366 return StringTable::hash_string(NULL, 0); | |
367 } | |
368 | |
369 typeArrayOop value = java_lang_String::value(java_string); | |
370 int offset = java_lang_String::offset(java_string); | |
371 return StringTable::hash_string(value->char_at_addr(offset), length); | |
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|
372 } |
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|
373 |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
374 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 375 oop obj = java_string(); |
376 typeArrayOop value = java_lang_String::value(obj); | |
377 int offset = java_lang_String::offset(obj); | |
378 int length = java_lang_String::length(obj); | |
949
489a4f8dcd0f
6865583: Verbose CIPrintMethodCodes asserts when ldc an empty String
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|
379 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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380 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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diff
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381 return sym; |
0 | 382 } |
383 | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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384 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
665
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6814659: separable cleanups and subroutines for 6655638
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385 typeArrayOop value = java_lang_String::value(java_string); |
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386 int offset = java_lang_String::offset(java_string); |
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387 int length = java_lang_String::length(java_string); |
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388 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
665
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389 return SymbolTable::probe_unicode(base, length); |
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6814659: separable cleanups and subroutines for 6655638
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390 } |
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391 |
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392 |
0 | 393 int java_lang_String::utf8_length(oop java_string) { |
394 typeArrayOop value = java_lang_String::value(java_string); | |
395 int offset = java_lang_String::offset(java_string); | |
396 int length = java_lang_String::length(java_string); | |
397 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
398 return UNICODE::utf8_length(position, length); | |
399 } | |
400 | |
401 char* java_lang_String::as_utf8_string(oop java_string) { | |
402 typeArrayOop value = java_lang_String::value(java_string); | |
403 int offset = java_lang_String::offset(java_string); | |
404 int length = java_lang_String::length(java_string); | |
405 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
406 return UNICODE::as_utf8(position, length); | |
407 } | |
408 | |
1989
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
409 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
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1980
diff
changeset
|
410 typeArrayOop value = java_lang_String::value(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
411 int offset = java_lang_String::offset(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
412 int length = java_lang_String::length(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
413 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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diff
changeset
|
414 return UNICODE::as_utf8(position, length, buf, buflen); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
415 } |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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parents:
1980
diff
changeset
|
416 |
0 | 417 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
418 typeArrayOop value = java_lang_String::value(java_string); | |
419 int offset = java_lang_String::offset(java_string); | |
420 int length = java_lang_String::length(java_string); | |
421 assert(start + len <= length, "just checking"); | |
422 jchar* position = value->char_at_addr(offset + start); | |
423 return UNICODE::as_utf8(position, len); | |
424 } | |
425 | |
426 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
6867 | 427 assert(java_string->klass() == SystemDictionary::String_klass(), |
0 | 428 "must be java_string"); |
429 typeArrayOop value = java_lang_String::value(java_string); | |
430 int offset = java_lang_String::offset(java_string); | |
431 int length = java_lang_String::length(java_string); | |
432 if (length != len) { | |
433 return false; | |
434 } | |
435 for (int i = 0; i < len; i++) { | |
436 if (value->char_at(i + offset) != chars[i]) { | |
437 return false; | |
438 } | |
439 } | |
440 return true; | |
441 } | |
442 | |
12275
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
12010
diff
changeset
|
443 bool java_lang_String::equals(oop str1, oop str2) { |
63147986a428
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parents:
12010
diff
changeset
|
444 assert(str1->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
12010
diff
changeset
|
445 "must be java String"); |
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parents:
12010
diff
changeset
|
446 assert(str2->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
12010
diff
changeset
|
447 "must be java String"); |
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diff
changeset
|
448 typeArrayOop value1 = java_lang_String::value(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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diff
changeset
|
449 int offset1 = java_lang_String::offset(str1); |
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diff
changeset
|
450 int length1 = java_lang_String::length(str1); |
63147986a428
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diff
changeset
|
451 typeArrayOop value2 = java_lang_String::value(str2); |
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diff
changeset
|
452 int offset2 = java_lang_String::offset(str2); |
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diff
changeset
|
453 int length2 = java_lang_String::length(str2); |
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diff
changeset
|
454 |
63147986a428
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diff
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|
455 if (length1 != length2) { |
63147986a428
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parents:
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diff
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|
456 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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diff
changeset
|
457 } |
63147986a428
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diff
changeset
|
458 for (int i = 0; i < length1; i++) { |
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diff
changeset
|
459 if (value1->char_at(i + offset1) != value2->char_at(i + offset2)) { |
63147986a428
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parents:
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diff
changeset
|
460 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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diff
changeset
|
461 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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diff
changeset
|
462 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
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diff
changeset
|
463 return true; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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12010
diff
changeset
|
464 } |
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diff
changeset
|
465 |
0 | 466 void java_lang_String::print(Handle java_string, outputStream* st) { |
467 oop obj = java_string(); | |
1142 | 468 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 469 typeArrayOop value = java_lang_String::value(obj); |
470 int offset = java_lang_String::offset(obj); | |
471 int length = java_lang_String::length(obj); | |
472 | |
473 int end = MIN2(length, 100); | |
474 if (value == NULL) { | |
475 // This can happen if, e.g., printing a String | |
476 // object before its initializer has been called | |
477 st->print_cr("NULL"); | |
478 } else { | |
479 st->print("\""); | |
480 for (int index = 0; index < length; index++) { | |
481 st->print("%c", value->char_at(index + offset)); | |
482 } | |
483 st->print("\""); | |
484 } | |
485 } | |
486 | |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
487 |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
488 static void initialize_static_field(fieldDescriptor* fd, Handle mirror, TRAPS) { |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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2357
diff
changeset
|
489 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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7017732: move static fields into Class to prepare for perm gen removal
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diff
changeset
|
490 if (fd->has_initial_value()) { |
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
491 BasicType t = fd->field_type(); |
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diff
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|
492 switch (t) { |
c7f3d0b4570f
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diff
changeset
|
493 case T_BYTE: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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diff
changeset
|
494 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
|
495 break; |
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7017732: move static fields into Class to prepare for perm gen removal
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diff
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|
496 case T_BOOLEAN: |
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497 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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498 break; |
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499 case T_CHAR: |
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500 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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|
501 break; |
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|
502 case T_SHORT: |
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503 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
c7f3d0b4570f
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|
504 break; |
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|
505 case T_INT: |
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506 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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|
507 break; |
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|
508 case T_FLOAT: |
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|
509 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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510 break; |
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511 case T_DOUBLE: |
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512 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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|
513 break; |
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514 case T_LONG: |
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515 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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7017732: move static fields into Class to prepare for perm gen removal
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|
516 break; |
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517 case T_OBJECT: |
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518 { |
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519 #ifdef ASSERT |
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520 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
c7f3d0b4570f
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521 assert(fd->signature() == sym, "just checking"); |
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522 #endif |
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|
523 oop string = fd->string_initial_value(CHECK); |
c7f3d0b4570f
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|
524 mirror()->obj_field_put(fd->offset(), string); |
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|
525 } |
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7017732: move static fields into Class to prepare for perm gen removal
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diff
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|
526 break; |
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diff
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|
527 default: |
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|
528 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
c7f3d0b4570f
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|
529 "Illegal ConstantValue attribute in class file"); |
c7f3d0b4570f
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parents:
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diff
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|
530 } |
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diff
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|
531 } |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
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diff
changeset
|
532 } |
c7f3d0b4570f
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diff
changeset
|
533 |
c7f3d0b4570f
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diff
changeset
|
534 |
c7f3d0b4570f
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|
535 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
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6725
diff
changeset
|
536 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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diff
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|
537 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
538 // If the offset was read from the shared archive, it was fixed up already |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
539 if (!k->is_shared()) { |
10343
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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10155
diff
changeset
|
540 if (k->oop_is_instance()) { |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
10155
diff
changeset
|
541 // During bootstrap, java.lang.Class wasn't loaded so static field |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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|
542 // offsets were computed without the size added it. Go back and |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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diff
changeset
|
543 // update all the static field offsets to included the size. |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
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|
544 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
10155
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changeset
|
545 if (fs.access_flags().is_static()) { |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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diff
changeset
|
546 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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changeset
|
547 fs.set_offset(real_offset); |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
10155
diff
changeset
|
548 } |
3938 | 549 } |
550 } | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
551 } |
10343
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
10155
diff
changeset
|
552 create_mirror(k, Handle(NULL), CHECK); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
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diff
changeset
|
553 } |
0 | 554 |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
555 void java_lang_Class::initialize_mirror_fields(KlassHandle k, |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
556 Handle mirror, |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
changeset
|
557 Handle protection_domain, |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
558 TRAPS) { |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
559 // Allocate a simple java object for a lock. |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
changeset
|
560 // This needs to be a java object because during class initialization |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
561 // it can be held across a java call. |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
562 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
changeset
|
563 set_init_lock(mirror(), r); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
564 |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
565 // Set protection domain also |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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changeset
|
566 set_protection_domain(mirror(), protection_domain()); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
changeset
|
567 |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
568 // Initialize static fields |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
569 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, mirror, CHECK); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
changeset
|
570 } |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
571 |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
572 void java_lang_Class::create_mirror(KlassHandle k, Handle protection_domain, TRAPS) { |
0 | 573 assert(k->java_mirror() == NULL, "should only assign mirror once"); |
574 // Use this moment of initialization to cache modifier_flags also, | |
575 // to support Class.getModifiers(). Instance classes recalculate | |
576 // the cached flags after the class file is parsed, but before the | |
577 // class is put into the system dictionary. | |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
changeset
|
578 int computed_modifiers = k->compute_modifier_flags(CHECK); |
0 | 579 k->set_modifier_flags(computed_modifiers); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
580 // Class_klass has to be loaded because it is used to allocate |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
581 // the mirror. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
582 if (SystemDictionary::Class_klass_loaded()) { |
0 | 583 // Allocate mirror (java.lang.Class instance) |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
584 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
585 |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
586 // Setup indirection from mirror->klass |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
587 if (!k.is_null()) { |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
588 java_lang_Class::set_klass(mirror(), k()); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
589 } |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
590 |
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
591 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
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diff
changeset
|
592 assert(oop_size(mirror()) == mk->instance_size(k), "should have been set"); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
593 |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
594 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
595 |
0 | 596 // It might also have a component mirror. This mirror must already exist. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
597 if (k->oop_is_array()) { |
0 | 598 Handle comp_mirror; |
599 if (k->oop_is_typeArray()) { | |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
600 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
0 | 601 comp_mirror = Universe::java_mirror(type); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
602 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
603 assert(k->oop_is_objArray(), "Must be"); |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6735
diff
changeset
|
604 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
605 assert(element_klass != NULL, "Must have an element klass"); |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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|
606 comp_mirror = element_klass->java_mirror(); |
0 | 607 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
608 assert(comp_mirror.not_null(), "must have a mirror"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
609 |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents:
12810
diff
changeset
|
610 // Two-way link between the array klass and its component mirror: |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
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diff
changeset
|
611 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
6725
da91efe96a93
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changeset
|
612 set_array_klass(comp_mirror(), k()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
613 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
614 assert(k->oop_is_instance(), "Must be"); |
10343
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
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diff
changeset
|
615 |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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changeset
|
616 initialize_mirror_fields(k, mirror, protection_domain, THREAD); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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changeset
|
617 if (HAS_PENDING_EXCEPTION) { |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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|
618 // If any of the fields throws an exception like OOM remove the klass field |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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|
619 // from the mirror so GC doesn't follow it after the klass has been deallocated. |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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changeset
|
620 // This mirror looks like a primitive type, which logically it is because it |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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changeset
|
621 // it represents no class. |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
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diff
changeset
|
622 java_lang_Class::set_klass(mirror(), NULL); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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changeset
|
623 return; |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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624 } |
0 | 625 } |
17883
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626 |
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627 // Setup indirection from klass->mirror last |
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628 // after any exceptions can happen during allocations. |
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629 if (!k.is_null()) { |
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630 k->set_java_mirror(mirror()); |
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631 } |
0 | 632 } else { |
6725
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633 if (fixup_mirror_list() == NULL) { |
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634 GrowableArray<Klass*>* list = |
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635 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
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636 set_fixup_mirror_list(list); |
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637 } |
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638 fixup_mirror_list()->push(k()); |
0 | 639 } |
640 } | |
641 | |
642 | |
2376
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643 int java_lang_Class::oop_size(oop java_class) { |
3938 | 644 assert(_oop_size_offset != 0, "must be set"); |
645 return java_class->int_field(_oop_size_offset); | |
2376
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646 } |
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647 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 648 assert(_oop_size_offset != 0, "must be set"); |
649 java_class->int_field_put(_oop_size_offset, size); | |
2376
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650 } |
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651 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 652 assert(_static_oop_field_count_offset != 0, "must be set"); |
653 return java_class->int_field(_static_oop_field_count_offset); | |
2376
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654 } |
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655 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 656 assert(_static_oop_field_count_offset != 0, "must be set"); |
657 java_class->int_field_put(_static_oop_field_count_offset, size); | |
2376
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658 } |
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659 |
10343
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660 oop java_lang_Class::protection_domain(oop java_class) { |
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661 assert(_protection_domain_offset != 0, "must be set"); |
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662 return java_class->obj_field(_protection_domain_offset); |
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663 } |
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664 void java_lang_Class::set_protection_domain(oop java_class, oop pd) { |
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665 assert(_protection_domain_offset != 0, "must be set"); |
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666 java_class->obj_field_put(_protection_domain_offset, pd); |
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667 } |
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668 |
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669 oop java_lang_Class::init_lock(oop java_class) { |
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670 assert(_init_lock_offset != 0, "must be set"); |
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671 return java_class->obj_field(_init_lock_offset); |
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672 } |
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673 void java_lang_Class::set_init_lock(oop java_class, oop init_lock) { |
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674 assert(_init_lock_offset != 0, "must be set"); |
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675 java_class->obj_field_put(_init_lock_offset, init_lock); |
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676 } |
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677 |
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678 objArrayOop java_lang_Class::signers(oop java_class) { |
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679 assert(_signers_offset != 0, "must be set"); |
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680 return (objArrayOop)java_class->obj_field(_signers_offset); |
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681 } |
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682 void java_lang_Class::set_signers(oop java_class, objArrayOop signers) { |
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683 assert(_signers_offset != 0, "must be set"); |
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684 java_class->obj_field_put(_signers_offset, (oop)signers); |
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685 } |
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686 |
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687 |
0 | 688 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
689 // This should be improved by adding a field at the Java level or by | |
690 // introducing a new VM klass (see comment in ClassFileParser) | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
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691 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
0 | 692 if (type != T_VOID) { |
6725
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693 Klass* aklass = Universe::typeArrayKlassObj(type); |
0 | 694 assert(aklass != NULL, "correct bootstrap"); |
695 set_array_klass(java_class, aklass); | |
696 } | |
4009 | 697 #ifdef ASSERT |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
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698 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 699 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
700 #endif | |
0 | 701 return java_class; |
702 } | |
703 | |
704 | |
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705 Klass* java_lang_Class::as_Klass(oop java_class) { |
0 | 706 //%note memory_2 |
2376
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707 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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708 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
0 | 709 assert(k == NULL || k->is_klass(), "type check"); |
710 return k; | |
711 } | |
712 | |
713 | |
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714 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
4009 | 715 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
6725
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716 java_class->metadata_field_put(_klass_offset, klass); |
4009 | 717 } |
718 | |
719 | |
665
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|
720 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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721 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
2177
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722 Symbol* name = NULL; |
665
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|
723 bool is_instance = false; |
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724 if (is_primitive(java_class)) { |
c89f86385056
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725 name = vmSymbols::type_signature(primitive_type(java_class)); |
c89f86385056
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|
726 } else { |
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727 Klass* k = as_Klass(java_class); |
6983 | 728 is_instance = k->oop_is_instance(); |
729 name = k->name(); | |
665
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|
730 } |
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|
731 if (name == NULL) { |
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|
732 st->print("<null>"); |
c89f86385056
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|
733 return; |
c89f86385056
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|
734 } |
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|
735 if (is_instance) st->print("L"); |
c89f86385056
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|
736 st->write((char*) name->base(), (int) name->utf8_length()); |
c89f86385056
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|
737 if (is_instance) st->print(";"); |
c89f86385056
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|
738 } |
c89f86385056
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|
739 |
2177
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coleenp
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diff
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|
740 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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6814659: separable cleanups and subroutines for 6655638
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|
741 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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|
742 Symbol* name; |
665
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|
743 if (is_primitive(java_class)) { |
2177
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|
744 name = vmSymbols::type_signature(primitive_type(java_class)); |
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diff
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|
745 // Because this can create a new symbol, the caller has to decrement |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
746 // the refcount, so make adjustment here and below for symbols returned |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
747 // that are not created or incremented due to a successful lookup. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
748 name->increment_refcount(); |
665
c89f86385056
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|
749 } else { |
6725
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750 Klass* k = as_Klass(java_class); |
6983 | 751 if (!k->oop_is_instance()) { |
752 name = k->name(); | |
2177
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diff
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|
753 name->increment_refcount(); |
665
c89f86385056
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jrose
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579
diff
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|
754 } else { |
c89f86385056
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|
755 ResourceMark rm; |
6983 | 756 const char* sigstr = k->signature_name(); |
665
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|
757 int siglen = (int) strlen(sigstr); |
2177
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coleenp
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diff
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|
758 if (!intern_if_not_found) { |
3582bf76420e
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diff
changeset
|
759 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
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coleenp
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diff
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|
760 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
761 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
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|
762 } |
665
c89f86385056
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diff
changeset
|
763 } |
c89f86385056
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diff
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|
764 } |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
765 return name; |
665
c89f86385056
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diff
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|
766 } |
c89f86385056
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jrose
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diff
changeset
|
767 |
c89f86385056
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|
768 |
6725
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|
769 Klass* java_lang_Class::array_klass(oop java_class) { |
da91efe96a93
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770 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
6983 | 771 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
0 | 772 return k; |
773 } | |
774 | |
775 | |
6725
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|
776 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
6983 | 777 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
6725
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778 java_class->metadata_field_put(_array_klass_offset, klass); |
0 | 779 } |
780 | |
781 | |
782 bool java_lang_Class::is_primitive(oop java_class) { | |
665
c89f86385056
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|
783 // should assert: |
c89f86385056
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784 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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785 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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786 |
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787 #ifdef ASSERT |
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788 if (is_primitive) { |
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789 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
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790 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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791 "Should be either the T_VOID primitive or a java primitive"); |
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792 } |
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793 #endif |
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794 |
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795 return is_primitive; |
0 | 796 } |
797 | |
798 | |
799 BasicType java_lang_Class::primitive_type(oop java_class) { | |
800 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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801 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
0 | 802 BasicType type = T_VOID; |
803 if (ak != NULL) { | |
804 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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805 type = ArrayKlass::cast(ak)->element_type(); |
0 | 806 } else { |
807 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
808 } | |
809 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
810 return type; | |
811 } | |
812 | |
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813 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
665
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814 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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815 if (is_primitive(java_class)) { |
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816 if (reference_klass != NULL) |
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817 (*reference_klass) = NULL; |
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818 return primitive_type(java_class); |
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819 } else { |
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820 if (reference_klass != NULL) |
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821 (*reference_klass) = as_Klass(java_class); |
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822 return T_OBJECT; |
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823 } |
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824 } |
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825 |
0 | 826 |
827 oop java_lang_Class::primitive_mirror(BasicType t) { | |
828 oop mirror = Universe::java_mirror(t); | |
1142 | 829 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 830 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
831 return mirror; | |
832 } | |
833 | |
834 bool java_lang_Class::offsets_computed = false; | |
835 int java_lang_Class::classRedefinedCount_offset = -1; | |
836 | |
837 void java_lang_Class::compute_offsets() { | |
838 assert(!offsets_computed, "offsets should be initialized only once"); | |
839 offsets_computed = true; | |
840 | |
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841 Klass* klass_oop = SystemDictionary::Class_klass(); |
0 | 842 // The classRedefinedCount field is only present starting in 1.5, |
843 // so don't go fatal. | |
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844 compute_optional_offset(classRedefinedCount_offset, |
3938 | 845 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
846 | |
847 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 848 } |
849 | |
850 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
851 if (!JDK_Version::is_gte_jdk15x_version() | |
852 || classRedefinedCount_offset == -1) { | |
853 // The classRedefinedCount field is only present starting in 1.5. | |
854 // If we don't have an offset for it then just return -1 as a marker. | |
855 return -1; | |
856 } | |
857 | |
858 return the_class_mirror->int_field(classRedefinedCount_offset); | |
859 } | |
860 | |
861 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
862 if (!JDK_Version::is_gte_jdk15x_version() | |
863 || classRedefinedCount_offset == -1) { | |
864 // The classRedefinedCount field is only present starting in 1.5. | |
865 // If we don't have an offset for it then nothing to set. | |
866 return; | |
867 } | |
868 | |
869 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
870 } | |
871 | |
872 | |
873 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
874 // platform thread structure, and a eetop offset which was used for thread | |
875 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
876 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
877 // instead of the privateInfo_offset. | |
878 // | |
879 // Note: The stackSize field is only present starting in 1.4. | |
880 | |
881 int java_lang_Thread::_name_offset = 0; | |
882 int java_lang_Thread::_group_offset = 0; | |
883 int java_lang_Thread::_contextClassLoader_offset = 0; | |
884 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
885 int java_lang_Thread::_priority_offset = 0; | |
886 int java_lang_Thread::_eetop_offset = 0; | |
887 int java_lang_Thread::_daemon_offset = 0; | |
888 int java_lang_Thread::_stillborn_offset = 0; | |
889 int java_lang_Thread::_stackSize_offset = 0; | |
890 int java_lang_Thread::_tid_offset = 0; | |
891 int java_lang_Thread::_thread_status_offset = 0; | |
892 int java_lang_Thread::_park_blocker_offset = 0; | |
893 int java_lang_Thread::_park_event_offset = 0 ; | |
894 | |
895 | |
896 void java_lang_Thread::compute_offsets() { | |
897 assert(_group_offset == 0, "offsets should be initialized only once"); | |
898 | |
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899 Klass* k = SystemDictionary::Thread_klass(); |
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900 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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901 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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902 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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903 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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904 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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905 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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906 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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907 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 908 // The stackSize field is only present starting in 1.4, so don't go fatal. |
132
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909 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 910 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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911 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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912 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 913 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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914 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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915 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 916 vmSymbols::long_signature()); |
917 } | |
918 | |
919 | |
920 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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921 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 922 } |
923 | |
924 | |
925 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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926 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 927 } |
928 | |
929 | |
930 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
931 oop name = java_thread->obj_field(_name_offset); | |
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932 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
0 | 933 return typeArrayOop(name); |
934 } | |
935 | |
936 | |
937 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
938 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
939 java_thread->obj_field_put(_name_offset, name); | |
940 } | |
941 | |
942 | |
943 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
944 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
945 } | |
946 | |
947 | |
948 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
949 java_thread->int_field_put(_priority_offset, priority); | |
950 } | |
951 | |
952 | |
953 oop java_lang_Thread::threadGroup(oop java_thread) { | |
954 return java_thread->obj_field(_group_offset); | |
955 } | |
956 | |
957 | |
958 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
959 return java_thread->bool_field(_stillborn_offset) != 0; | |
960 } | |
961 | |
962 | |
963 // We never have reason to turn the stillborn bit off | |
964 void java_lang_Thread::set_stillborn(oop java_thread) { | |
965 java_thread->bool_field_put(_stillborn_offset, true); | |
966 } | |
967 | |
968 | |
969 bool java_lang_Thread::is_alive(oop java_thread) { | |
970 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
971 return (thr != NULL); | |
972 } | |
973 | |
974 | |
975 bool java_lang_Thread::is_daemon(oop java_thread) { | |
976 return java_thread->bool_field(_daemon_offset) != 0; | |
977 } | |
978 | |
979 | |
980 void java_lang_Thread::set_daemon(oop java_thread) { | |
981 java_thread->bool_field_put(_daemon_offset, true); | |
982 } | |
983 | |
984 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
985 return java_thread->obj_field(_contextClassLoader_offset); | |
986 } | |
987 | |
988 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
989 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
990 } | |
991 | |
992 | |
993 jlong java_lang_Thread::stackSize(oop java_thread) { | |
994 // The stackSize field is only present starting in 1.4 | |
995 if (_stackSize_offset > 0) { | |
996 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
997 return java_thread->long_field(_stackSize_offset); | |
998 } else { | |
999 return 0; | |
1000 } | |
1001 } | |
1002 | |
1003 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
1004 void java_lang_Thread::set_thread_status(oop java_thread, | |
1005 java_lang_Thread::ThreadStatus status) { | |
1006 // The threadStatus is only present starting in 1.5 | |
1007 if (_thread_status_offset > 0) { | |
1008 java_thread->int_field_put(_thread_status_offset, status); | |
1009 } | |
1010 } | |
1011 | |
1012 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
1013 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
10405 | 1014 assert(Thread::current()->is_Watcher_thread() || Thread::current()->is_VM_thread() || |
0 | 1015 JavaThread::current()->thread_state() == _thread_in_vm, |
1016 "Java Thread is not running in vm"); | |
1017 // The threadStatus is only present starting in 1.5 | |
1018 if (_thread_status_offset > 0) { | |
1019 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
1020 } else { | |
1021 // All we can easily figure out is if it is alive, but that is | |
1022 // enough info for a valid unknown status. | |
1023 // These aren't restricted to valid set ThreadStatus values, so | |
1024 // use JVMTI values and cast. | |
1025 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
1026 if (thr == NULL) { | |
1027 // the thread hasn't run yet or is in the process of exiting | |
1028 return NEW; | |
1029 } | |
1030 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
1031 } | |
1032 } | |
1033 | |
1034 | |
1035 jlong java_lang_Thread::thread_id(oop java_thread) { | |
1036 // The thread ID field is only present starting in 1.5 | |
1037 if (_tid_offset > 0) { | |
1038 return java_thread->long_field(_tid_offset); | |
1039 } else { | |
1040 return 0; | |
1041 } | |
1042 } | |
1043 | |
1044 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 1045 assert(JDK_Version::current().supports_thread_park_blocker() && |
1046 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 1047 |
1048 if (_park_blocker_offset > 0) { | |
1049 return java_thread->obj_field(_park_blocker_offset); | |
1050 } | |
1051 | |
1052 return NULL; | |
1053 } | |
1054 | |
1055 jlong java_lang_Thread::park_event(oop java_thread) { | |
1056 if (_park_event_offset > 0) { | |
1057 return java_thread->long_field(_park_event_offset); | |
1058 } | |
1059 return 0; | |
1060 } | |
1061 | |
1062 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
1063 if (_park_event_offset > 0) { | |
1064 java_thread->long_field_put(_park_event_offset, ptr); | |
1065 return true; | |
1066 } | |
1067 return false; | |
1068 } | |
1069 | |
1070 | |
1071 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
1072 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
1073 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
1074 switch (status) { | |
1075 case NEW : return "NEW"; | |
1076 case RUNNABLE : return "RUNNABLE"; | |
1077 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
1078 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
1079 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
1080 case PARKED : return "WAITING (parking)"; | |
1081 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
1082 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
1083 case TERMINATED : return "TERMINATED"; | |
1084 default : return "UNKNOWN"; | |
1085 }; | |
1086 } | |
1087 int java_lang_ThreadGroup::_parent_offset = 0; | |
1088 int java_lang_ThreadGroup::_name_offset = 0; | |
1089 int java_lang_ThreadGroup::_threads_offset = 0; | |
1090 int java_lang_ThreadGroup::_groups_offset = 0; | |
1091 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
1092 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
1093 int java_lang_ThreadGroup::_daemon_offset = 0; | |
1094 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
1095 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
1096 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
1097 | |
1098 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
1099 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1100 return java_thread_group->obj_field(_parent_offset); | |
1101 } | |
1102 | |
1103 // ("name as oop" accessor is not necessary) | |
1104 | |
1105 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
1106 oop name = java_thread_group->obj_field(_name_offset); | |
1107 // ThreadGroup.name can be null | |
1108 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
1109 } | |
1110 | |
1111 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
1112 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1113 return java_thread_group->int_field(_nthreads_offset); | |
1114 } | |
1115 | |
1116 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
1117 oop threads = java_thread_group->obj_field(_threads_offset); | |
1118 assert(threads != NULL, "threadgroups should have threads"); | |
1119 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1120 return objArrayOop(threads); | |
1121 } | |
1122 | |
1123 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1124 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1125 return java_thread_group->int_field(_ngroups_offset); | |
1126 } | |
1127 | |
1128 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1129 oop groups = java_thread_group->obj_field(_groups_offset); | |
1130 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1131 return objArrayOop(groups); | |
1132 } | |
1133 | |
1134 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1135 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1136 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1137 } | |
1138 | |
1139 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1140 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1141 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1142 } | |
1143 | |
1144 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1145 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1146 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1147 } | |
1148 | |
1149 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1150 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1151 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1152 } | |
1153 | |
1154 void java_lang_ThreadGroup::compute_offsets() { | |
1155 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1156 | |
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1157 Klass* k = SystemDictionary::ThreadGroup_klass(); |
0 | 1158 |
132
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1159 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1160 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1161 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1162 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1163 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1164 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1165 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1166 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1167 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1168 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1169 } |
1170 | |
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1171 oop java_lang_Throwable::unassigned_stacktrace() { |
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1172 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1173 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1174 if (UseCompressedOops) { |
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1175 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1176 } else { |
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1177 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1178 } |
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1179 } |
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1180 |
0 | 1181 oop java_lang_Throwable::backtrace(oop throwable) { |
1182 return throwable->obj_field_acquire(backtrace_offset); | |
1183 } | |
1184 | |
1185 | |
1186 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1187 throwable->release_obj_field_put(backtrace_offset, value); | |
1188 } | |
1189 | |
1190 | |
1191 oop java_lang_Throwable::message(oop throwable) { | |
1192 return throwable->obj_field(detailMessage_offset); | |
1193 } | |
1194 | |
1195 | |
1196 oop java_lang_Throwable::message(Handle throwable) { | |
1197 return throwable->obj_field(detailMessage_offset); | |
1198 } | |
1199 | |
1200 | |
1201 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1202 throwable->obj_field_put(detailMessage_offset, value); | |
1203 } | |
1204 | |
1205 | |
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1206 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1207 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1208 } |
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1209 |
0 | 1210 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1211 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1212 set_stacktrace(throwable, NULL); |
0 | 1213 } |
1214 | |
1215 | |
1216 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1217 ResourceMark rm; | |
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1218 Klass* k = throwable->klass(); |
0 | 1219 assert(k != NULL, "just checking"); |
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1220 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1221 oop msg = message(throwable); |
1222 if (msg != NULL) { | |
1223 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1224 } | |
1225 } | |
1226 | |
1227 | |
1228 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1229 ResourceMark rm; | |
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1230 Klass* k = throwable->klass(); |
0 | 1231 assert(k != NULL, "just checking"); |
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1232 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1233 oop msg = message(throwable); |
1234 if (msg != NULL) { | |
1235 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1236 } | |
1237 } | |
1238 | |
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1239 // After this many redefines, the stack trace is unreliable. |
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1240 const int MAX_VERSION = USHRT_MAX; |
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1241 |
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1242 // Helper backtrace functions to store bci|version together. |
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1243 static inline int merge_bci_and_version(int bci, int version) { |
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1244 // only store u2 for version, checking for overflow. |
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1245 if (version > USHRT_MAX || version < 0) version = MAX_VERSION; |
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1246 assert((jushort)bci == bci, "bci should be short"); |
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1247 return build_int_from_shorts(version, bci); |
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1248 } |
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1249 |
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1250 static inline int bci_at(unsigned int merged) { |
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1251 return extract_high_short_from_int(merged); |
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1252 } |
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1253 static inline int version_at(unsigned int merged) { |
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1254 return extract_low_short_from_int(merged); |
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1255 } |
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1256 |
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1257 static inline bool version_matches(Method* method, int version) { |
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1258 return (method->constants()->version() == version && version < MAX_VERSION); |
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1259 } |
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1260 |
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1261 static inline int get_line_number(Method* method, int bci) { |
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1262 int line_number = 0; |
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1263 if (method->is_native()) { |
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1264 // Negative value different from -1 below, enabling Java code in |
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1265 // class java.lang.StackTraceElement to distinguish "native" from |
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1266 // "no LineNumberTable". JDK tests for -2. |
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1267 line_number = -2; |
0 | 1268 } else { |
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1269 // Returns -1 if no LineNumberTable, and otherwise actual line number |
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1270 line_number = method->line_number_from_bci(bci); |
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1271 if (line_number == -1 && ShowHiddenFrames) { |
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1272 line_number = bci + 1000000; |
0 | 1273 } |
1274 } | |
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1275 return line_number; |
0 | 1276 } |
1277 | |
1278 // This class provides a simple wrapper over the internal structure of | |
1279 // exception backtrace to insulate users of the backtrace from needing | |
1280 // to know what it looks like. | |
1281 class BacktraceBuilder: public StackObj { | |
1282 private: | |
1283 Handle _backtrace; | |
1284 objArrayOop _head; | |
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1285 typeArrayOop _methods; |
0 | 1286 typeArrayOop _bcis; |
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1287 objArrayOop _mirrors; |
0 | 1288 int _index; |
1289 No_Safepoint_Verifier _nsv; | |
1290 | |
1291 public: | |
1292 | |
1293 enum { | |
1294 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
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1295 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, |
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1296 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
0 | 1297 trace_next_offset = java_lang_Throwable::trace_next_offset, |
1298 trace_size = java_lang_Throwable::trace_size, | |
1299 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1300 }; | |
1301 | |
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1302 // get info out of chunks |
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1303 static typeArrayOop get_methods(objArrayHandle chunk) { |
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1304 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
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1305 assert(methods != NULL, "method array should be initialized in backtrace"); |
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1306 return methods; |
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1307 } |
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1308 static typeArrayOop get_bcis(objArrayHandle chunk) { |
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1309 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
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1310 assert(bcis != NULL, "bci array should be initialized in backtrace"); |
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1311 return bcis; |
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1312 } |
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1313 static objArrayOop get_mirrors(objArrayHandle chunk) { |
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1314 objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset)); |
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1315 assert(mirrors != NULL, "mirror array should be initialized in backtrace"); |
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1316 return mirrors; |
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1317 } |
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1318 |
0 | 1319 // constructor for new backtrace |
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1320 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
0 | 1321 expand(CHECK); |
1322 _backtrace = _head; | |
1323 _index = 0; | |
1324 } | |
1325 | |
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1326 BacktraceBuilder(objArrayHandle backtrace) { |
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1327 _methods = get_methods(backtrace); |
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1328 _bcis = get_bcis(backtrace); |
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1329 _mirrors = get_mirrors(backtrace); |
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1330 assert(_methods->length() == _bcis->length() && |
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1331 _methods->length() == _mirrors->length(), |
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1332 "method and source information arrays should match"); |
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1333 |
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1334 // head is the preallocated backtrace |
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1335 _backtrace = _head = backtrace(); |
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1336 _index = 0; |
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1337 } |
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1338 |
0 | 1339 void expand(TRAPS) { |
1340 objArrayHandle old_head(THREAD, _head); | |
1341 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1342 | |
1343 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1344 objArrayHandle new_head(THREAD, head); | |
1345 | |
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1346 typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
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1347 typeArrayHandle new_methods(THREAD, methods); |
0 | 1348 |
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1349 typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK); |
0 | 1350 typeArrayHandle new_bcis(THREAD, bcis); |
1351 | |
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1352 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1353 objArrayHandle new_mirrors(THREAD, mirrors); |
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1354 |
0 | 1355 if (!old_head.is_null()) { |
1356 old_head->obj_at_put(trace_next_offset, new_head()); | |
1357 } | |
1358 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1359 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
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1360 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
0 | 1361 |
1362 _head = new_head(); | |
1363 _methods = new_methods(); | |
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1364 _bcis = new_bcis(); |
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1365 _mirrors = new_mirrors(); |
0 | 1366 _index = 0; |
1367 } | |
1368 | |
1369 oop backtrace() { | |
1370 return _backtrace(); | |
1371 } | |
1372 | |
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1373 inline void push(Method* method, int bci, TRAPS) { |
4817
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1374 // Smear the -1 bci to 0 since the array only holds unsigned |
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1375 // shorts. The later line number lookup would just smear the -1 |
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1376 // to a 0 even if it could be recorded. |
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1377 if (bci == SynchronizationEntryBCI) bci = 0; |
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1378 |
0 | 1379 if (_index >= trace_chunk_size) { |
1380 methodHandle mhandle(THREAD, method); | |
1381 expand(CHECK); | |
1382 method = mhandle(); | |
1383 } | |
1384 | |
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1385 _methods->short_at_put(_index, method->method_idnum()); |
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1386 _bcis->int_at_put(_index, merge_bci_and_version(bci, method->constants()->version())); |
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1387 |
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1388 // We need to save the mirrors in the backtrace to keep the class |
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1389 // from being unloaded while we still have this stack trace. |
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1390 assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror"); |
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1391 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
0 | 1392 _index++; |
1393 } | |
1394 | |
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1395 }; |
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1396 |
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1397 // Print stack trace element to resource allocated buffer |
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1398 char* java_lang_Throwable::print_stack_element_to_buffer(Handle mirror, |
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1399 int method_id, int version, int bci) { |
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1400 |
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1401 // Get strings and string lengths |
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1402 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1403 const char* klass_name = holder->external_name(); |
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1404 int buf_len = (int)strlen(klass_name); |
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1405 |
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1406 // The method id may point to an obsolete method, can't get more stack information |
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1407 Method* method = holder->method_with_idnum(method_id); |
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1408 if (method == NULL) { |
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1409 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1410 // This is what the java code prints in this case - added Redefined |
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1411 sprintf(buf, "\tat %s.null (Redefined)", klass_name); |
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1412 return buf; |
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1413 } |
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1414 |
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1415 char* method_name = method->name()->as_C_string(); |
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1416 buf_len += (int)strlen(method_name); |
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1417 |
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1418 char* source_file_name = NULL; |
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1419 if (version_matches(method, version)) { |
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1420 Symbol* source = holder->source_file_name(); |
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1421 if (source != NULL) { |
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1422 source_file_name = source->as_C_string(); |
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1423 buf_len += (int)strlen(source_file_name); |
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1424 } |
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1425 } |
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1426 |
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1427 // Allocate temporary buffer with extra space for formatting and line number |
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1428 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1429 |
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1430 // Print stack trace line in buffer |
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1431 sprintf(buf, "\tat %s.%s", klass_name, method_name); |
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1432 |
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1433 if (!version_matches(method, version)) { |
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1434 strcat(buf, "(Redefined)"); |
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1435 } else { |
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1436 int line_number = get_line_number(method, bci); |
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1437 if (line_number == -2) { |
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1438 strcat(buf, "(Native Method)"); |
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1439 } else { |
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1440 if (source_file_name != NULL && (line_number != -1)) { |
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1441 // Sourcename and linenumber |
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1442 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); |
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1443 } else if (source_file_name != NULL) { |
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1444 // Just sourcename |
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1445 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); |
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1446 } else { |
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1447 // Neither sourcename nor linenumber |
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1448 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); |
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1449 } |
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1450 nmethod* nm = method->code(); |
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1451 if (WizardMode && nm != NULL) { |
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1452 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
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1453 } |
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1454 } |
0 | 1455 } |
1456 | |
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1457 return buf; |
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1458 } |
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1459 |
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1460 void java_lang_Throwable::print_stack_element(outputStream *st, Handle mirror, |
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1461 int method_id, int version, int bci) { |
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1462 ResourceMark rm; |
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1463 char* buf = print_stack_element_to_buffer(mirror, method_id, version, bci); |
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1464 st->print_cr("%s", buf); |
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1465 } |
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1466 |
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1467 void java_lang_Throwable::print_stack_element(outputStream *st, methodHandle method, int bci) { |
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1468 Handle mirror = method->method_holder()->java_mirror(); |
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1469 int method_id = method->method_idnum(); |
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1470 int version = method->constants()->version(); |
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1471 print_stack_element(st, mirror, method_id, version, bci); |
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1472 } |
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1473 |
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1474 const char* java_lang_Throwable::no_stack_trace_message() { |
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1475 return "\t<<no stack trace available>>"; |
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1476 } |
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1477 |
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1478 |
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1479 // Currently used only for exceptions occurring during startup |
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1480 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { |
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1481 Thread *THREAD = Thread::current(); |
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1482 Handle h_throwable(THREAD, throwable); |
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1483 while (h_throwable.not_null()) { |
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1484 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); |
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1485 if (result.is_null()) { |
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1486 st->print_cr("%s", no_stack_trace_message()); |
7624
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1487 return; |
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1488 } |
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1489 |
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1490 while (result.not_null()) { |
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1491 |
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1492 // Get method id, bci, version and mirror from chunk |
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1493 typeArrayHandle methods (THREAD, BacktraceBuilder::get_methods(result)); |
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1494 typeArrayHandle bcis (THREAD, BacktraceBuilder::get_bcis(result)); |
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1495 objArrayHandle mirrors (THREAD, BacktraceBuilder::get_mirrors(result)); |
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1496 |
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1497 int length = methods()->length(); |
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1498 for (int index = 0; index < length; index++) { |
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1499 Handle mirror(THREAD, mirrors->obj_at(index)); |
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1500 // NULL mirror means end of stack trace |
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1501 if (mirror.is_null()) goto handle_cause; |
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1502 int method = methods->short_at(index); |
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1503 int version = version_at(bcis->int_at(index)); |
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1504 int bci = bci_at(bcis->int_at(index)); |
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1505 print_stack_element(st, mirror, method, version, bci); |
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1506 } |
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1507 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); |
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1508 } |
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1509 handle_cause: |
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1510 { |
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1511 EXCEPTION_MARK; |
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1512 JavaValue cause(T_OBJECT); |
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1513 JavaCalls::call_virtual(&cause, |
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1514 h_throwable, |
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1515 KlassHandle(THREAD, h_throwable->klass()), |
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1516 vmSymbols::getCause_name(), |
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1517 vmSymbols::void_throwable_signature(), |
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1518 THREAD); |
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1519 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. |
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1520 if (HAS_PENDING_EXCEPTION) { |
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1521 CLEAR_PENDING_EXCEPTION; |
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1522 h_throwable = Handle(); |
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1523 } else { |
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1524 h_throwable = Handle(THREAD, (oop) cause.get_jobject()); |
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1525 if (h_throwable.not_null()) { |
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1526 st->print("Caused by: "); |
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1527 print(h_throwable, st); |
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|
1528 st->cr(); |
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|
1529 } |
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|
1530 } |
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|
1531 } |
0 | 1532 } |
7624
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1533 } |
0 | 1534 |
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1535 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1536 if (!StackTraceInThrowable) return; |
1537 ResourceMark rm(THREAD); | |
1538 | |
1539 // Start out by clearing the backtrace for this object, in case the VM | |
1540 // runs out of memory while allocating the stack trace | |
1541 set_backtrace(throwable(), NULL); | |
1542 if (JDK_Version::is_gte_jdk14x_version()) { | |
1543 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1544 // refilling occurs | |
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1545 // This is unnecessary in 1.7+ but harmless |
0 | 1546 clear_stacktrace(throwable()); |
1547 } | |
1548 | |
1549 int max_depth = MaxJavaStackTraceDepth; | |
1550 JavaThread* thread = (JavaThread*)THREAD; | |
1551 BacktraceBuilder bt(CHECK); | |
1552 | |
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1553 // If there is no Java frame just return the method that was being called |
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1554 // with bci 0 |
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1555 if (!thread->has_last_Java_frame()) { |
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1556 if (max_depth >= 1 && method() != NULL) { |
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1557 bt.push(method(), 0, CHECK); |
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1558 set_backtrace(throwable(), bt.backtrace()); |
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|
1559 } |
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|
1560 return; |
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|
1561 } |
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|
1562 |
0 | 1563 // Instead of using vframe directly, this version of fill_in_stack_trace |
1564 // basically handles everything by hand. This significantly improved the | |
1565 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1566 // See bug 6333838 for more details. | |
1567 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1568 // trace as utilizing vframe. | |
1569 #ifdef ASSERT | |
1570 vframeStream st(thread); | |
1571 methodHandle st_method(THREAD, st.method()); | |
1572 #endif | |
1573 int total_count = 0; | |
1574 RegisterMap map(thread, false); | |
1575 int decode_offset = 0; | |
1576 nmethod* nm = NULL; | |
1577 bool skip_fillInStackTrace_check = false; | |
1578 bool skip_throwableInit_check = false; | |
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1579 bool skip_hidden = !ShowHiddenFrames; |
0 | 1580 |
1581 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
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1582 Method* method = NULL; |
0 | 1583 int bci = 0; |
1584 | |
1585 // Compiled java method case. | |
1586 if (decode_offset != 0) { | |
1587 DebugInfoReadStream stream(nm, decode_offset); | |
1588 decode_offset = stream.read_int(); | |
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1589 method = (Method*)nm->metadata_at(stream.read_int()); |
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1590 bci = stream.read_bci(); |
0 | 1591 } else { |
1592 if (fr.is_first_frame()) break; | |
1593 address pc = fr.pc(); | |
1594 if (fr.is_interpreted_frame()) { | |
1595 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1596 method = fr.interpreter_frame_method(); | |
1597 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1598 fr = fr.sender(&map); | |
1599 } else { | |
1600 CodeBlob* cb = fr.cb(); | |
1601 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1602 // but non nmethod | |
1603 fr = fr.sender(&map); | |
1604 if (cb == NULL || !cb->is_nmethod()) { | |
1605 continue; | |
1606 } | |
1607 nm = (nmethod*)cb; | |
1608 if (nm->method()->is_native()) { | |
1609 method = nm->method(); | |
1610 bci = 0; | |
1611 } else { | |
1612 PcDesc* pd = nm->pc_desc_at(pc); | |
1613 decode_offset = pd->scope_decode_offset(); | |
1614 // if decode_offset is not equal to 0, it will execute the | |
1615 // "compiled java method case" at the beginning of the loop. | |
1616 continue; | |
1617 } | |
1618 } | |
1619 } | |
1620 #ifdef ASSERT | |
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1621 assert(st_method() == method && st.bci() == bci, |
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1622 "Wrong stack trace"); |
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|
1623 st.next(); |
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1624 // vframeStream::method isn't GC-safe so store off a copy |
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1625 // of the Method* in case we GC. |
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1626 if (!st.at_end()) { |
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1627 st_method = st.method(); |
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|
1628 } |
0 | 1629 #endif |
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|
1630 |
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1631 // the format of the stacktrace will be: |
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1632 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1633 // - 0 or more <init> methods for the exception class (skipped) |
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1634 // - rest of the stack |
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|
1635 |
0 | 1636 if (!skip_fillInStackTrace_check) { |
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1637 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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|
1638 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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|
1639 throwable->is_a(method->method_holder())) { |
0 | 1640 continue; |
1641 } | |
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|
1642 else { |
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|
1643 skip_fillInStackTrace_check = true; // gone past them all |
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|
1644 } |
0 | 1645 } |
1646 if (!skip_throwableInit_check) { | |
2476
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|
1647 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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|
1648 |
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|
1649 // skip <init> methods of the exception class and superclasses |
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|
1650 // This is simlar to classic VM. |
0 | 1651 if (method->name() == vmSymbols::object_initializer_name() && |
1652 throwable->is_a(method->method_holder())) { | |
1653 continue; | |
1654 } else { | |
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1655 // there are none or we've seen them all - either way stop checking |
0 | 1656 skip_throwableInit_check = true; |
1657 } | |
1658 } | |
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|
1659 if (method->is_hidden()) { |
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|
1660 if (skip_hidden) continue; |
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|
1661 } |
0 | 1662 bt.push(method, bci, CHECK); |
1663 total_count++; | |
1664 } | |
1665 | |
1666 // Put completed stack trace into throwable object | |
1667 set_backtrace(throwable(), bt.backtrace()); | |
1668 } | |
1669 | |
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1670 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1671 // No-op if stack trace is disabled |
1672 if (!StackTraceInThrowable) { | |
1673 return; | |
1674 } | |
1675 | |
1676 // Disable stack traces for some preallocated out of memory errors | |
1677 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1678 return; | |
1679 } | |
1680 | |
1681 PRESERVE_EXCEPTION_MARK; | |
1682 | |
1683 JavaThread* thread = JavaThread::active(); | |
3272
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1684 fill_in_stack_trace(throwable, method, thread); |
0 | 1685 // ignore exceptions thrown during stack trace filling |
1686 CLEAR_PENDING_EXCEPTION; | |
1687 } | |
1688 | |
1689 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1690 // Allocate stack trace - backtrace is created but not filled in | |
1691 | |
1692 // No-op if stack trace is disabled | |
1693 if (!StackTraceInThrowable) return; | |
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1694 BacktraceBuilder bt(CHECK); // creates a backtrace |
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1695 set_backtrace(throwable(), bt.backtrace()); |
0 | 1696 } |
1697 | |
1698 | |
1699 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1700 // Fill in stack trace into preallocated backtrace (no GC) | |
1701 | |
1702 // No-op if stack trace is disabled | |
1703 if (!StackTraceInThrowable) return; | |
1704 | |
1142 | 1705 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1706 |
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1707 JavaThread* THREAD = JavaThread::current(); |
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1708 |
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1709 objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable())); |
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1710 assert(backtrace.not_null(), "backtrace should have been preallocated"); |
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1711 |
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1712 ResourceMark rm(THREAD); |
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1713 vframeStream st(THREAD); |
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1714 |
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1715 BacktraceBuilder bt(backtrace); |
0 | 1716 |
1717 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1718 // methods as preallocated errors aren't created by "java" code. | |
1719 | |
1720 // fill in as much stack trace as possible | |
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1721 typeArrayOop methods = BacktraceBuilder::get_methods(backtrace); |
0 | 1722 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); |
1723 int chunk_count = 0; | |
1724 | |
1725 for (;!st.at_end(); st.next()) { | |
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1726 bt.push(st.method(), st.bci(), CHECK); |
0 | 1727 chunk_count++; |
1728 | |
1729 // Bail-out for deep stacks | |
1730 if (chunk_count >= max_chunks) break; | |
1731 } | |
3820
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1732 |
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1733 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1734 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1735 // can be removed in a JDK using this JVM version |
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1736 if (JDK_Version::is_gte_jdk17x_version()) { |
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1737 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1738 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1739 } |
0 | 1740 } |
1741 | |
1742 | |
1743 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1744 if (throwable == NULL) { | |
1745 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1746 } | |
1747 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1748 int depth = 0; | |
1749 if (chunk != NULL) { | |
1750 // Iterate over chunks and count full ones | |
1751 while (true) { | |
1752 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1753 if (next == NULL) break; | |
1754 depth += trace_chunk_size; | |
1755 chunk = next; | |
1756 } | |
1757 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
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1758 // Count element in remaining partial chunk. NULL value for mirror |
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1759 // marks the end of the stack trace elements that are saved. |
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1760 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1761 assert(mirrors != NULL, "sanity check"); |
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1762 for (int i = 0; i < mirrors->length(); i++) { |
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1763 if (mirrors->obj_at(i) == NULL) break; |
0 | 1764 depth++; |
1765 } | |
1766 } | |
1767 return depth; | |
1768 } | |
1769 | |
1770 | |
1771 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1772 if (throwable == NULL) { | |
1773 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1774 } | |
1775 if (index < 0) { | |
1776 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1777 } | |
1778 // Compute how many chunks to skip and index into actual chunk | |
1779 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1780 int skip_chunks = index / trace_chunk_size; | |
1781 int chunk_index = index % trace_chunk_size; | |
1782 while (chunk != NULL && skip_chunks > 0) { | |
1783 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1784 skip_chunks--; | |
1785 } | |
1786 if (chunk == NULL) { | |
1787 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1788 } | |
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1789 // Get method id, bci, version and mirror from chunk |
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1790 typeArrayOop methods = BacktraceBuilder::get_methods(chunk); |
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1791 typeArrayOop bcis = BacktraceBuilder::get_bcis(chunk); |
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1792 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1793 |
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1794 assert(methods != NULL && bcis != NULL && mirrors != NULL, "sanity check"); |
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1795 |
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1796 int method = methods->short_at(chunk_index); |
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1797 int version = version_at(bcis->int_at(chunk_index)); |
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1798 int bci = bci_at(bcis->int_at(chunk_index)); |
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1799 Handle mirror(THREAD, mirrors->obj_at(chunk_index)); |
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1800 |
0 | 1801 // Chunk can be partial full |
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1802 if (mirror.is_null()) { |
0 | 1803 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); |
1804 } | |
1805 | |
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1806 oop element = java_lang_StackTraceElement::create(mirror, method, version, bci, CHECK_0); |
0 | 1807 return element; |
1808 } | |
1809 | |
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1810 oop java_lang_StackTraceElement::create(Handle mirror, int method_id, |
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1811 int version, int bci, TRAPS) { |
0 | 1812 // Allocate java.lang.StackTraceElement instance |
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1813 Klass* k = SystemDictionary::StackTraceElement_klass(); |
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1814 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1815 instanceKlassHandle ik (THREAD, k); |
1816 if (ik->should_be_initialized()) { | |
1817 ik->initialize(CHECK_0); | |
1818 } | |
1819 | |
1820 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1821 // Fill in class name | |
1822 ResourceMark rm(THREAD); | |
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1823 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1824 const char* str = holder->external_name(); |
0 | 1825 oop classname = StringTable::intern((char*) str, CHECK_0); |
1826 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
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1827 |
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1828 Method* method = holder->method_with_idnum(method_id); |
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1829 // Method on stack may be obsolete because it was redefined so cannot be |
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1830 // found by idnum. |
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1831 if (method == NULL) { |
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1832 // leave name and fileName null |
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1833 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
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1834 return element(); |
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1835 } |
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1836 |
0 | 1837 // Fill in method name |
1838 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1839 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
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1840 |
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1841 if (!version_matches(method, version)) { |
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1842 // The method was redefined, accurate line number information isn't available |
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1843 java_lang_StackTraceElement::set_fileName(element(), NULL); |
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1844 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
0 | 1845 } else { |
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1846 // Fill in source file name and line number. |
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1847 Symbol* source = holder->source_file_name(); |
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1848 if (ShowHiddenFrames && source == NULL) |
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1849 source = vmSymbols::unknown_class_name(); |
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1850 oop filename = StringTable::intern(source, CHECK_0); |
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1851 java_lang_StackTraceElement::set_fileName(element(), filename); |
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1852 |
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1853 int line_number = get_line_number(method, bci); |
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1854 java_lang_StackTraceElement::set_lineNumber(element(), line_number); |
0 | 1855 } |
1856 return element(); | |
1857 } | |
1858 | |
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1859 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { |
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1860 Handle mirror (THREAD, method->method_holder()->java_mirror()); |
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1861 int method_id = method->method_idnum(); |
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1862 return create(mirror, method_id, method->constants()->version(), bci, THREAD); |
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1863 } |
0 | 1864 |
1865 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
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1866 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1867 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1868 } |
1869 | |
1870 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1871 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1872 return (jboolean) reflect->bool_field(override_offset); | |
1873 } | |
1874 | |
1875 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1876 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1877 reflect->bool_field_put(override_offset, (int) value); | |
1878 } | |
1879 | |
1880 void java_lang_reflect_Method::compute_offsets() { | |
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1881 Klass* k = SystemDictionary::reflect_Method_klass(); |
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1882 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1883 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1884 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1885 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1886 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1887 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1888 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1889 // The generic signature and annotations fields are only present in 1.5 |
1890 signature_offset = -1; | |
1891 annotations_offset = -1; | |
1892 parameter_annotations_offset = -1; | |
1893 annotation_default_offset = -1; | |
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1894 type_annotations_offset = -1; |
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1895 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1896 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1897 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1898 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
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1899 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1900 } |
1901 | |
1902 Handle java_lang_reflect_Method::create(TRAPS) { | |
1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1904 Klass* klass = SystemDictionary::reflect_Method_klass(); |
0 | 1905 // This class is eagerly initialized during VM initialization, since we keep a refence |
1906 // to one of the methods | |
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1907 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1908 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
0 | 1909 } |
1910 | |
1911 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1912 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1913 return reflect->obj_field(clazz_offset); | |
1914 } | |
1915 | |
1916 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1917 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1918 reflect->obj_field_put(clazz_offset, value); | |
1919 } | |
1920 | |
1921 int java_lang_reflect_Method::slot(oop reflect) { | |
1922 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1923 return reflect->int_field(slot_offset); | |
1924 } | |
1925 | |
1926 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1927 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1928 reflect->int_field_put(slot_offset, value); | |
1929 } | |
1930 | |
1931 oop java_lang_reflect_Method::name(oop method) { | |
1932 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1933 return method->obj_field(name_offset); | |
1934 } | |
1935 | |
1936 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1937 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1938 method->obj_field_put(name_offset, value); | |
1939 } | |
1940 | |
1941 oop java_lang_reflect_Method::return_type(oop method) { | |
1942 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1943 return method->obj_field(returnType_offset); | |
1944 } | |
1945 | |
1946 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1947 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1948 method->obj_field_put(returnType_offset, value); | |
1949 } | |
1950 | |
1951 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1952 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1953 return method->obj_field(parameterTypes_offset); | |
1954 } | |
1955 | |
1956 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1957 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1958 method->obj_field_put(parameterTypes_offset, value); | |
1959 } | |
1960 | |
1961 oop java_lang_reflect_Method::exception_types(oop method) { | |
1962 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1963 return method->obj_field(exceptionTypes_offset); | |
1964 } | |
1965 | |
1966 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1967 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1968 method->obj_field_put(exceptionTypes_offset, value); | |
1969 } | |
1970 | |
1971 int java_lang_reflect_Method::modifiers(oop method) { | |
1972 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1973 return method->int_field(modifiers_offset); | |
1974 } | |
1975 | |
1976 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1977 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1978 method->int_field_put(modifiers_offset, value); | |
1979 } | |
1980 | |
1981 bool java_lang_reflect_Method::has_signature_field() { | |
1982 return (signature_offset >= 0); | |
1983 } | |
1984 | |
1985 oop java_lang_reflect_Method::signature(oop method) { | |
1986 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1987 assert(has_signature_field(), "signature field must be present"); | |
1988 return method->obj_field(signature_offset); | |
1989 } | |
1990 | |
1991 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1992 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1993 assert(has_signature_field(), "signature field must be present"); | |
1994 method->obj_field_put(signature_offset, value); | |
1995 } | |
1996 | |
1997 bool java_lang_reflect_Method::has_annotations_field() { | |
1998 return (annotations_offset >= 0); | |
1999 } | |
2000 | |
2001 oop java_lang_reflect_Method::annotations(oop method) { | |
2002 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2003 assert(has_annotations_field(), "annotations field must be present"); | |
2004 return method->obj_field(annotations_offset); | |
2005 } | |
2006 | |
2007 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
2008 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2009 assert(has_annotations_field(), "annotations field must be present"); | |
2010 method->obj_field_put(annotations_offset, value); | |
2011 } | |
2012 | |
2013 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
2014 return (parameter_annotations_offset >= 0); | |
2015 } | |
2016 | |
2017 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
2018 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2019 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2020 return method->obj_field(parameter_annotations_offset); | |
2021 } | |
2022 | |
2023 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
2024 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2025 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2026 method->obj_field_put(parameter_annotations_offset, value); | |
2027 } | |
2028 | |
2029 bool java_lang_reflect_Method::has_annotation_default_field() { | |
2030 return (annotation_default_offset >= 0); | |
2031 } | |
2032 | |
2033 oop java_lang_reflect_Method::annotation_default(oop method) { | |
2034 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2035 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2036 return method->obj_field(annotation_default_offset); | |
2037 } | |
2038 | |
2039 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
2040 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2041 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2042 method->obj_field_put(annotation_default_offset, value); | |
2043 } | |
2044 | |
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2045 bool java_lang_reflect_Method::has_type_annotations_field() { |
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2046 return (type_annotations_offset >= 0); |
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2047 } |
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2048 |
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2049 oop java_lang_reflect_Method::type_annotations(oop method) { |
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2050 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2051 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2052 return method->obj_field(type_annotations_offset); |
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2053 } |
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2054 |
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2055 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { |
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2056 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2057 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2058 method->obj_field_put(type_annotations_offset, value); |
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2059 } |
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2060 |
0 | 2061 void java_lang_reflect_Constructor::compute_offsets() { |
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2062 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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2063 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2064 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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2065 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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2066 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2067 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2068 // The generic signature and annotations fields are only present in 1.5 |
2069 signature_offset = -1; | |
2070 annotations_offset = -1; | |
2071 parameter_annotations_offset = -1; | |
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2072 type_annotations_offset = -1; |
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2073 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2074 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2075 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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2076 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2077 } |
2078 | |
2079 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
2080 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2081 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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2082 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2083 instanceKlassHandle klass (THREAD, k); |
2084 // Ensure it is initialized | |
2085 klass->initialize(CHECK_NH); | |
2086 return klass->allocate_instance_handle(CHECK_NH); | |
2087 } | |
2088 | |
2089 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
2090 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2091 return reflect->obj_field(clazz_offset); | |
2092 } | |
2093 | |
2094 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
2095 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2096 reflect->obj_field_put(clazz_offset, value); | |
2097 } | |
2098 | |
2099 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
2100 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2101 return constructor->obj_field(parameterTypes_offset); | |
2102 } | |
2103 | |
2104 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
2105 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2106 constructor->obj_field_put(parameterTypes_offset, value); | |
2107 } | |
2108 | |
2109 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
2110 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2111 return constructor->obj_field(exceptionTypes_offset); | |
2112 } | |
2113 | |
2114 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
2115 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2116 constructor->obj_field_put(exceptionTypes_offset, value); | |
2117 } | |
2118 | |
2119 int java_lang_reflect_Constructor::slot(oop reflect) { | |
2120 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2121 return reflect->int_field(slot_offset); | |
2122 } | |
2123 | |
2124 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
2125 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2126 reflect->int_field_put(slot_offset, value); | |
2127 } | |
2128 | |
2129 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
2130 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2131 return constructor->int_field(modifiers_offset); | |
2132 } | |
2133 | |
2134 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
2135 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2136 constructor->int_field_put(modifiers_offset, value); | |
2137 } | |
2138 | |
2139 bool java_lang_reflect_Constructor::has_signature_field() { | |
2140 return (signature_offset >= 0); | |
2141 } | |
2142 | |
2143 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
2144 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2145 assert(has_signature_field(), "signature field must be present"); | |
2146 return constructor->obj_field(signature_offset); | |
2147 } | |
2148 | |
2149 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
2150 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2151 assert(has_signature_field(), "signature field must be present"); | |
2152 constructor->obj_field_put(signature_offset, value); | |
2153 } | |
2154 | |
2155 bool java_lang_reflect_Constructor::has_annotations_field() { | |
2156 return (annotations_offset >= 0); | |
2157 } | |
2158 | |
2159 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
2160 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2161 assert(has_annotations_field(), "annotations field must be present"); | |
2162 return constructor->obj_field(annotations_offset); | |
2163 } | |
2164 | |
2165 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
2166 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2167 assert(has_annotations_field(), "annotations field must be present"); | |
2168 constructor->obj_field_put(annotations_offset, value); | |
2169 } | |
2170 | |
2171 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
2172 return (parameter_annotations_offset >= 0); | |
2173 } | |
2174 | |
2175 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
2176 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2178 return method->obj_field(parameter_annotations_offset); | |
2179 } | |
2180 | |
2181 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
2182 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2183 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2184 method->obj_field_put(parameter_annotations_offset, value); | |
2185 } | |
2186 | |
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2187 bool java_lang_reflect_Constructor::has_type_annotations_field() { |
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2188 return (type_annotations_offset >= 0); |
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2189 } |
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2190 |
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2191 oop java_lang_reflect_Constructor::type_annotations(oop constructor) { |
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2192 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2193 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2194 return constructor->obj_field(type_annotations_offset); |
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2195 } |
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2196 |
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2197 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { |
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2198 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2199 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2200 constructor->obj_field_put(type_annotations_offset, value); |
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2201 } |
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2202 |
0 | 2203 void java_lang_reflect_Field::compute_offsets() { |
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2204 Klass* k = SystemDictionary::reflect_Field_klass(); |
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2205 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2206 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2207 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2208 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2209 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2210 // The generic signature and annotations fields are only present in 1.5 |
2211 signature_offset = -1; | |
2212 annotations_offset = -1; | |
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2213 type_annotations_offset = -1; |
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2214 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2215 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2216 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2217 } |
2218 | |
2219 Handle java_lang_reflect_Field::create(TRAPS) { | |
2220 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2221 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2222 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2223 instanceKlassHandle klass (THREAD, k); |
2224 // Ensure it is initialized | |
2225 klass->initialize(CHECK_NH); | |
2226 return klass->allocate_instance_handle(CHECK_NH); | |
2227 } | |
2228 | |
2229 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2230 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2231 return reflect->obj_field(clazz_offset); | |
2232 } | |
2233 | |
2234 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2235 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2236 reflect->obj_field_put(clazz_offset, value); | |
2237 } | |
2238 | |
2239 oop java_lang_reflect_Field::name(oop field) { | |
2240 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2241 return field->obj_field(name_offset); | |
2242 } | |
2243 | |
2244 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2245 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2246 field->obj_field_put(name_offset, value); | |
2247 } | |
2248 | |
2249 oop java_lang_reflect_Field::type(oop field) { | |
2250 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2251 return field->obj_field(type_offset); | |
2252 } | |
2253 | |
2254 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2255 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2256 field->obj_field_put(type_offset, value); | |
2257 } | |
2258 | |
2259 int java_lang_reflect_Field::slot(oop reflect) { | |
2260 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2261 return reflect->int_field(slot_offset); | |
2262 } | |
2263 | |
2264 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2265 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2266 reflect->int_field_put(slot_offset, value); | |
2267 } | |
2268 | |
2269 int java_lang_reflect_Field::modifiers(oop field) { | |
2270 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2271 return field->int_field(modifiers_offset); | |
2272 } | |
2273 | |
2274 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2275 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2276 field->int_field_put(modifiers_offset, value); | |
2277 } | |
2278 | |
2279 bool java_lang_reflect_Field::has_signature_field() { | |
2280 return (signature_offset >= 0); | |
2281 } | |
2282 | |
2283 oop java_lang_reflect_Field::signature(oop field) { | |
2284 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2285 assert(has_signature_field(), "signature field must be present"); | |
2286 return field->obj_field(signature_offset); | |
2287 } | |
2288 | |
2289 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2290 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2291 assert(has_signature_field(), "signature field must be present"); | |
2292 field->obj_field_put(signature_offset, value); | |
2293 } | |
2294 | |
2295 bool java_lang_reflect_Field::has_annotations_field() { | |
2296 return (annotations_offset >= 0); | |
2297 } | |
2298 | |
2299 oop java_lang_reflect_Field::annotations(oop field) { | |
2300 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2301 assert(has_annotations_field(), "annotations field must be present"); | |
2302 return field->obj_field(annotations_offset); | |
2303 } | |
2304 | |
2305 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2306 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2307 assert(has_annotations_field(), "annotations field must be present"); | |
2308 field->obj_field_put(annotations_offset, value); | |
2309 } | |
2310 | |
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2311 bool java_lang_reflect_Field::has_type_annotations_field() { |
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2312 return (type_annotations_offset >= 0); |
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2313 } |
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2314 |
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2315 oop java_lang_reflect_Field::type_annotations(oop field) { |
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2316 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2317 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2318 return field->obj_field(type_annotations_offset); |
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2319 } |
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2320 |
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2321 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { |
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2322 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2323 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2324 field->obj_field_put(type_annotations_offset, value); |
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2325 } |
0 | 2326 |
2327 void sun_reflect_ConstantPool::compute_offsets() { | |
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2328 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2329 // This null test can be removed post beta |
2330 if (k != NULL) { | |
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2331 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
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2332 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
0 | 2333 } |
2334 } | |
2335 | |
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2336 void java_lang_reflect_Parameter::compute_offsets() { |
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2337 Klass* k = SystemDictionary::reflect_Parameter_klass(); |
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2338 if(NULL != k) { |
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2339 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2340 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
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2341 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); |
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2342 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); |
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2343 } |
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2344 } |
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2345 |
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2346 Handle java_lang_reflect_Parameter::create(TRAPS) { |
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2347 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2348 Symbol* name = vmSymbols::java_lang_reflect_Parameter(); |
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2349 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
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2350 instanceKlassHandle klass (THREAD, k); |
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2351 // Ensure it is initialized |
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2352 klass->initialize(CHECK_NH); |
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2353 return klass->allocate_instance_handle(CHECK_NH); |
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2354 } |
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2355 |
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2356 oop java_lang_reflect_Parameter::name(oop param) { |
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2357 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2358 return param->obj_field(name_offset); |
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2359 } |
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2360 |
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2361 void java_lang_reflect_Parameter::set_name(oop param, oop value) { |
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2362 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2363 param->obj_field_put(name_offset, value); |
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2364 } |
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2365 |
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2366 int java_lang_reflect_Parameter::modifiers(oop param) { |
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2367 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2368 return param->int_field(modifiers_offset); |
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2369 } |
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2370 |
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2371 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { |
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2372 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2373 param->int_field_put(modifiers_offset, value); |
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2374 } |
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2375 |
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2376 int java_lang_reflect_Parameter::index(oop param) { |
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2377 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2378 return param->int_field(index_offset); |
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2379 } |
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2380 |
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2381 void java_lang_reflect_Parameter::set_index(oop param, int value) { |
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2382 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2383 param->int_field_put(index_offset, value); |
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2384 } |
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2385 |
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2386 oop java_lang_reflect_Parameter::executable(oop param) { |
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2387 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2388 return param->obj_field(executable_offset); |
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2389 } |
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2390 |
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2391 void java_lang_reflect_Parameter::set_executable(oop param, oop value) { |
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2392 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2393 param->obj_field_put(executable_offset, value); |
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2394 } |
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2395 |
0 | 2396 |
2397 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2398 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2399 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2400 instanceKlassHandle klass (THREAD, k); |
2401 // Ensure it is initialized | |
2402 klass->initialize(CHECK_NH); | |
2403 return klass->allocate_instance_handle(CHECK_NH); | |
2404 } | |
2405 | |
2406 | |
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2407 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
0 | 2408 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2409 oop mirror = value->pool_holder()->java_mirror(); |
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2410 // Save the mirror to get back the constant pool. |
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2411 reflect->obj_field_put(_oop_offset, mirror); |
0 | 2412 } |
2413 | |
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2414 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
0 | 2415 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2416 |
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2417 oop mirror = reflect->obj_field(_oop_offset); |
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2418 Klass* k = java_lang_Class::as_Klass(mirror); |
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2419 assert(k->oop_is_instance(), "Must be"); |
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2420 |
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2421 // Get the constant pool back from the klass. Since class redefinition |
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2422 // merges the new constant pool into the old, this is essentially the |
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2423 // same constant pool as the original. If constant pool merging is |
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2424 // no longer done in the future, this will have to change to save |
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2425 // the original. |
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2426 return InstanceKlass::cast(k)->constants(); |
0 | 2427 } |
2428 | |
2429 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
6725
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2430 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2431 // This null test can be removed post beta |
2432 if (k != NULL) { | |
132
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2433 compute_offset(_base_offset, k, |
0 | 2434 vmSymbols::base_name(), vmSymbols::object_signature()); |
2435 } | |
2436 } | |
2437 | |
132
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2438 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
6725
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2439 Klass* k = SystemDictionary::box_klass(type); |
132
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2440 if (k == NULL) return NULL; |
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|
2441 instanceKlassHandle h (THREAD, k); |
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2442 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2443 return h->allocate_instance(THREAD); |
0 | 2444 } |
2445 | |
2446 | |
2447 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2448 oop box = initialize_and_allocate(type, CHECK_0); |
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2449 if (box == NULL) return NULL; |
0 | 2450 switch (type) { |
2451 case T_BOOLEAN: | |
2452 box->bool_field_put(value_offset, value->z); | |
2453 break; | |
2454 case T_CHAR: | |
2455 box->char_field_put(value_offset, value->c); | |
2456 break; | |
2457 case T_FLOAT: | |
2458 box->float_field_put(value_offset, value->f); | |
2459 break; | |
2460 case T_DOUBLE: | |
165
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2461 box->double_field_put(long_value_offset, value->d); |
0 | 2462 break; |
2463 case T_BYTE: | |
2464 box->byte_field_put(value_offset, value->b); | |
2465 break; | |
2466 case T_SHORT: | |
2467 box->short_field_put(value_offset, value->s); | |
2468 break; | |
2469 case T_INT: | |
2470 box->int_field_put(value_offset, value->i); | |
2471 break; | |
2472 case T_LONG: | |
165
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diff
changeset
|
2473 box->long_field_put(long_value_offset, value->j); |
0 | 2474 break; |
2475 default: | |
2476 return NULL; | |
2477 } | |
2478 return box; | |
2479 } | |
2480 | |
2481 | |
132
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|
2482 BasicType java_lang_boxing_object::basic_type(oop box) { |
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|
2483 if (box == NULL) return T_ILLEGAL; |
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diff
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|
2484 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2485 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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|
2486 return T_ILLEGAL; |
60b728ec77c1
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|
2487 return type; |
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diff
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|
2488 } |
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|
2489 |
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|
2490 |
0 | 2491 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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|
2492 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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|
2493 switch (type) { |
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|
2494 case T_BOOLEAN: |
0 | 2495 value->z = box->bool_field(value_offset); |
132
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|
2496 break; |
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diff
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|
2497 case T_CHAR: |
0 | 2498 value->c = box->char_field(value_offset); |
132
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diff
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|
2499 break; |
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diff
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|
2500 case T_FLOAT: |
0 | 2501 value->f = box->float_field(value_offset); |
132
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diff
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|
2502 break; |
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diff
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|
2503 case T_DOUBLE: |
165
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diff
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|
2504 value->d = box->double_field(long_value_offset); |
132
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|
2505 break; |
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|
2506 case T_BYTE: |
0 | 2507 value->b = box->byte_field(value_offset); |
132
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|
2508 break; |
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|
2509 case T_SHORT: |
0 | 2510 value->s = box->short_field(value_offset); |
132
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|
2511 break; |
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|
2512 case T_INT: |
0 | 2513 value->i = box->int_field(value_offset); |
132
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|
2514 break; |
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diff
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|
2515 case T_LONG: |
165
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diff
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|
2516 value->j = box->long_field(long_value_offset); |
132
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|
2517 break; |
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jrose
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diff
changeset
|
2518 default: |
60b728ec77c1
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jrose
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diff
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|
2519 return T_ILLEGAL; |
60b728ec77c1
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diff
changeset
|
2520 } // end switch |
60b728ec77c1
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diff
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|
2521 return type; |
0 | 2522 } |
2523 | |
2524 | |
2525 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
60b728ec77c1
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|
2526 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
60b728ec77c1
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113
diff
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|
2527 switch (type) { |
60b728ec77c1
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diff
changeset
|
2528 case T_BOOLEAN: |
0 | 2529 box->bool_field_put(value_offset, value->z); |
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2530 break; |
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jrose
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113
diff
changeset
|
2531 case T_CHAR: |
0 | 2532 box->char_field_put(value_offset, value->c); |
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2533 break; |
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jrose
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113
diff
changeset
|
2534 case T_FLOAT: |
0 | 2535 box->float_field_put(value_offset, value->f); |
132
60b728ec77c1
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113
diff
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|
2536 break; |
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jrose
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113
diff
changeset
|
2537 case T_DOUBLE: |
165
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parents:
132
diff
changeset
|
2538 box->double_field_put(long_value_offset, value->d); |
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2539 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
2540 case T_BYTE: |
0 | 2541 box->byte_field_put(value_offset, value->b); |
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2542 break; |
60b728ec77c1
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jrose
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113
diff
changeset
|
2543 case T_SHORT: |
0 | 2544 box->short_field_put(value_offset, value->s); |
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2545 break; |
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jrose
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113
diff
changeset
|
2546 case T_INT: |
0 | 2547 box->int_field_put(value_offset, value->i); |
132
60b728ec77c1
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113
diff
changeset
|
2548 break; |
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jrose
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113
diff
changeset
|
2549 case T_LONG: |
165
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132
diff
changeset
|
2550 box->long_field_put(long_value_offset, value->j); |
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2551 break; |
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2552 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2553 return T_ILLEGAL; |
60b728ec77c1
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jrose
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113
diff
changeset
|
2554 } // end switch |
60b728ec77c1
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113
diff
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|
2555 return type; |
0 | 2556 } |
2557 | |
2558 | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2559 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
|
2560 switch (type) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2561 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2562 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2563 case T_BYTE: st->print("%d", value->b); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2564 case T_SHORT: st->print("%d", value->s); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2565 case T_INT: st->print("%d", value->i); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2566 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2567 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2568 case T_DOUBLE: st->print("%lf", value->d); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2569 default: st->print("type %d?", type); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2570 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2571 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2572 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
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|
2573 |
0 | 2574 // Support for java_lang_ref_Reference |
6725
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|
2575 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { |
da91efe96a93
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|
2576 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
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|
2577 address addr = ik->static_field_addr(static_lock_offset); |
da91efe96a93
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|
2578 return (HeapWord*) addr; |
da91efe96a93
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|
2579 } |
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|
2580 |
113
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|
2581 oop java_lang_ref_Reference::pending_list_lock() { |
6725
da91efe96a93
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coleenp
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6267
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|
2582 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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2357
diff
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|
2583 address addr = ik->static_field_addr(static_lock_offset); |
113
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|
2584 if (UseCompressedOops) { |
ba764ed4b6f2
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98
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changeset
|
2585 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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|
2586 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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98
diff
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|
2587 return oopDesc::load_decode_heap_oop((oop*)addr); |
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|
2588 } |
0 | 2589 } |
2590 | |
113
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98
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changeset
|
2591 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
6725
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coleenp
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6267
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changeset
|
2592 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
|
2593 address addr = ik->static_field_addr(static_pending_offset); |
113
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coleenp
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|
2594 // XXX This might not be HeapWord aligned, almost rather be char *. |
ba764ed4b6f2
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|
2595 return (HeapWord*)addr; |
0 | 2596 } |
2597 | |
113
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|
2598 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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98
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changeset
|
2599 char *addr = (char *)pending_list_addr(); |
ba764ed4b6f2
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coleenp
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|
2600 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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changeset
|
2601 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
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|
2602 } else { |
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|
2603 return oopDesc::load_decode_heap_oop((oop*)addr); |
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|
2604 } |
0 | 2605 } |
2606 | |
2607 | |
2608 // Support for java_lang_ref_SoftReference | |
2609 | |
2610 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2611 return ref->long_field(timestamp_offset); | |
2612 } | |
2613 | |
2614 jlong java_lang_ref_SoftReference::clock() { | |
6725
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2615 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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|
2616 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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|
2617 return *offset; |
0 | 2618 } |
2619 | |
2620 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
6725
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2621 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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|
2622 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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|
2623 *offset = value; |
0 | 2624 } |
2625 | |
12010
ca0165daa6ec
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changeset
|
2626 // Support for java_lang_invoke_DirectMethodHandle |
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|
2627 |
ca0165daa6ec
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|
2628 int java_lang_invoke_DirectMethodHandle::_member_offset; |
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|
2629 |
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|
2630 oop java_lang_invoke_DirectMethodHandle::member(oop dmh) { |
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|
2631 oop member_name = NULL; |
ca0165daa6ec
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diff
changeset
|
2632 bool is_dmh = dmh->is_oop() && java_lang_invoke_DirectMethodHandle::is_instance(dmh); |
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|
2633 assert(is_dmh, "a DirectMethodHandle oop is expected"); |
ca0165daa6ec
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|
2634 if (is_dmh) { |
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|
2635 member_name = dmh->obj_field(member_offset_in_bytes()); |
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|
2636 } |
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|
2637 return member_name; |
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|
2638 } |
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|
2639 |
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|
2640 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
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|
2641 Klass* klass_oop = SystemDictionary::DirectMethodHandle_klass(); |
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|
2642 if (klass_oop != NULL && EnableInvokeDynamic) { |
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|
2643 compute_offset(_member_offset, klass_oop, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
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|
2644 } |
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|
2645 } |
0 | 2646 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
2647 // Support for java_lang_invoke_MethodHandle |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
2648 |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2649 int java_lang_invoke_MethodHandle::_type_offset; |
6266
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|
2650 int java_lang_invoke_MethodHandle::_form_offset; |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2651 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2652 int java_lang_invoke_MemberName::_clazz_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2653 int java_lang_invoke_MemberName::_name_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2654 int java_lang_invoke_MemberName::_type_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2655 int java_lang_invoke_MemberName::_flags_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2656 int java_lang_invoke_MemberName::_vmtarget_offset; |
6725
da91efe96a93
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|
2657 int java_lang_invoke_MemberName::_vmloader_offset; |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2658 int java_lang_invoke_MemberName::_vmindex_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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changeset
|
2659 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2660 int java_lang_invoke_LambdaForm::_vmentry_offset; |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2661 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2662 void java_lang_invoke_MethodHandle::compute_offsets() { |
6725
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|
2663 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
3938 | 2664 if (klass_oop != NULL && EnableInvokeDynamic) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2665 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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changeset
|
2666 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2667 if (_form_offset == 0) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2668 EnableInvokeDynamic = false; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2669 } |
710 | 2670 } |
2671 } | |
2672 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2673 void java_lang_invoke_MemberName::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2674 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
3938 | 2675 if (klass_oop != NULL && EnableInvokeDynamic) { |
2676 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2677 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2678 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2679 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2680 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2681 } |
2682 } | |
2683 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2684 void java_lang_invoke_LambdaForm::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2685 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2686 if (klass_oop != NULL && EnableInvokeDynamic) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2687 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
710 | 2688 } |
2689 } | |
2690 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2691 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2692 return mh->obj_field(_type_offset); |
2693 } | |
2694 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2695 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2696 mh->obj_field_put(_type_offset, mtype); |
2697 } | |
2698 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2699 oop java_lang_invoke_MethodHandle::form(oop mh) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2700 assert(_form_offset != 0, ""); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2701 return mh->obj_field(_form_offset); |
710 | 2702 } |
2703 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2704 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2705 assert(_form_offset != 0, ""); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2706 mh->obj_field_put(_form_offset, lform); |
710 | 2707 } |
2708 | |
2709 /// MemberName accessors | |
2710 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2711 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2712 assert(is_instance(mname), "wrong type"); |
2713 return mname->obj_field(_clazz_offset); | |
2714 } | |
2715 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2716 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2717 assert(is_instance(mname), "wrong type"); |
2718 mname->obj_field_put(_clazz_offset, clazz); | |
2719 } | |
2720 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2721 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2722 assert(is_instance(mname), "wrong type"); |
2723 return mname->obj_field(_name_offset); | |
2724 } | |
2725 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2726 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2727 assert(is_instance(mname), "wrong type"); |
2728 mname->obj_field_put(_name_offset, name); | |
2729 } | |
2730 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2731 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2732 assert(is_instance(mname), "wrong type"); |
2733 return mname->obj_field(_type_offset); | |
2734 } | |
2735 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2736 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2737 assert(is_instance(mname), "wrong type"); |
2738 mname->obj_field_put(_type_offset, type); | |
2739 } | |
2740 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2741 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2742 assert(is_instance(mname), "wrong type"); |
2743 return mname->int_field(_flags_offset); | |
2744 } | |
2745 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2746 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2747 assert(is_instance(mname), "wrong type"); |
2748 mname->int_field_put(_flags_offset, flags); | |
2749 } | |
2750 | |
6725
da91efe96a93
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|
2751 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2752 assert(is_instance(mname), "wrong type"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
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|
2753 return (Metadata*)mname->address_field(_vmtarget_offset); |
710 | 2754 } |
2755 | |
10133
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
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7629
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|
2756 #if INCLUDE_JVMTI |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
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7629
diff
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|
2757 // Can be executed on VM thread only |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
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7629
diff
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|
2758 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
sspitsyn
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7629
diff
changeset
|
2759 assert((is_instance(mname) && (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0), "wrong type"); |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
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7629
diff
changeset
|
2760 assert(Thread::current()->is_VM_thread(), "not VM thread"); |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
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7629
diff
changeset
|
2761 mname->address_field_put(_vmtarget_offset, (address)ref); |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
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|
2762 } |
6337ca4dcad8
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sspitsyn
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changeset
|
2763 #endif // INCLUDE_JVMTI |
6337ca4dcad8
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|
2764 |
6725
da91efe96a93
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|
2765 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
710 | 2766 assert(is_instance(mname), "wrong type"); |
6266
1d7922586cf6
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diff
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|
2767 // check the type of the vmtarget |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
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diff
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|
2768 oop dependency = NULL; |
6266
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diff
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|
2769 if (ref != NULL) { |
1d7922586cf6
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diff
changeset
|
2770 switch (flags(mname) & (MN_IS_METHOD | |
1d7922586cf6
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6224
diff
changeset
|
2771 MN_IS_CONSTRUCTOR | |
1d7922586cf6
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6224
diff
changeset
|
2772 MN_IS_FIELD)) { |
1d7922586cf6
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diff
changeset
|
2773 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
|
2774 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
|
2775 assert(ref->is_method(), "should be a method"); |
7185
90273fc0a981
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coleenp
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7180
diff
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|
2776 dependency = ((Method*)ref)->method_holder()->java_mirror(); |
6266
1d7922586cf6
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6224
diff
changeset
|
2777 break; |
1d7922586cf6
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twisti
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6224
diff
changeset
|
2778 case MN_IS_FIELD: |
1d7922586cf6
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6224
diff
changeset
|
2779 assert(ref->is_klass(), "should be a class"); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2780 dependency = ((Klass*)ref)->java_mirror(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2781 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2782 default: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2783 ShouldNotReachHere(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2784 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2785 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2786 mname->address_field_put(_vmtarget_offset, (address)ref); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2787 // Add a reference to the loader (actually mirror because anonymous classes will not have |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2788 // distinct loaders) to ensure the metadata is kept alive |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2789 // This mirror may be different than the one in clazz field. |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2790 mname->obj_field_put(_vmloader_offset, dependency); |
710 | 2791 } |
2792 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2793 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2794 assert(is_instance(mname), "wrong type"); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2795 return (intptr_t) mname->address_field(_vmindex_offset); |
710 | 2796 } |
2797 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2798 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2799 assert(is_instance(mname), "wrong type"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2800 mname->address_field_put(_vmindex_offset, (address) index); |
710 | 2801 } |
2802 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2803 oop java_lang_invoke_LambdaForm::vmentry(oop lform) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2804 assert(is_instance(lform), "wrong type"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2805 return lform->obj_field(_vmentry_offset); |
710 | 2806 } |
2807 | |
2808 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2809 // Support for java_lang_invoke_MethodType |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2810 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2811 int java_lang_invoke_MethodType::_rtype_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2812 int java_lang_invoke_MethodType::_ptypes_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2813 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2814 void java_lang_invoke_MethodType::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2815 Klass* k = SystemDictionary::MethodType_klass(); |
710 | 2816 if (k != NULL) { |
2817 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2818 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2819 } | |
2820 } | |
2821 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2822 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2823 st->print("("); |
2824 objArrayOop pts = ptypes(mt); | |
2825 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2826 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2827 } | |
2828 st->print(")"); | |
2829 java_lang_Class::print_signature(rtype(mt), st); | |
2830 } | |
2831 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2832 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2833 ResourceMark rm; |
2834 stringStream buffer(128); | |
2835 print_signature(mt, &buffer); | |
2836 const char* sigstr = buffer.base(); | |
2837 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2838 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2839 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2840 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2841 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2842 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2843 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2844 return name; |
710 | 2845 } |
2846 | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2847 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
twisti
parents:
6224
diff
changeset
|
2848 if (mt1 == mt2) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2849 return true; |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2850 if (rtype(mt1) != rtype(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2851 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2852 if (ptype_count(mt1) != ptype_count(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2853 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2854 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
jrose
parents:
3363
diff
changeset
|
2855 if (ptype(mt1, i) != ptype(mt2, i)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2856 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2857 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2858 return true; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2859 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2860 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2861 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2862 assert(is_instance(mt), "must be a MethodType"); |
2863 return mt->obj_field(_rtype_offset); | |
2864 } | |
2865 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2866 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2867 assert(is_instance(mt), "must be a MethodType"); |
2868 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2869 } | |
2870 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2871 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2872 return ptypes(mt)->obj_at(idx); |
2873 } | |
2874 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2875 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
|
2876 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2877 } |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2878 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2879 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2880 objArrayOop pts = ptypes(mt); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2881 int count = pts->length(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2882 int slots = 0; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2883 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
|
2884 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
changeset
|
2885 slots += type2size[bt]; |
710 | 2886 } |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2887 return slots; |
710 | 2888 } |
2889 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2890 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
|
2891 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
|
2892 return type2size[bt]; |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2893 } |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2894 |
710 | 2895 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2896 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2897 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2898 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
|
2899 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2900 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2901 if (!EnableInvokeDynamic) return; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2902 Klass* k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2903 if (k != NULL) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2904 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
|
2905 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2906 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2907 |
710 | 2908 |
0 | 2909 // Support for java_security_AccessControlContext |
2910 | |
2911 int java_security_AccessControlContext::_context_offset = 0; | |
2912 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2913 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
11010 | 2914 int java_security_AccessControlContext::_isAuthorized_offset = -1; |
0 | 2915 |
2916 void java_security_AccessControlContext::compute_offsets() { | |
2917 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2918 fieldDescriptor fd; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2919 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
0 | 2920 |
2921 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2922 fatal("Invalid layout of java.security.AccessControlContext"); | |
2923 } | |
2924 _context_offset = fd.offset(); | |
2925 | |
2926 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2927 fatal("Invalid layout of java.security.AccessControlContext"); | |
2928 } | |
2929 _privilegedContext_offset = fd.offset(); | |
2930 | |
2931 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2932 fatal("Invalid layout of java.security.AccessControlContext"); | |
2933 } | |
2934 _isPrivileged_offset = fd.offset(); | |
11010 | 2935 |
2936 // The offset may not be present for bootstrapping with older JDK. | |
2937 if (ik->find_local_field(vmSymbols::isAuthorized_name(), vmSymbols::bool_signature(), &fd)) { | |
2938 _isAuthorized_offset = fd.offset(); | |
2939 } | |
0 | 2940 } |
2941 | |
2942 | |
11010 | 2943 bool java_security_AccessControlContext::is_authorized(Handle context) { |
2944 assert(context.not_null() && context->klass() == SystemDictionary::AccessControlContext_klass(), "Invalid type"); | |
2945 assert(_isAuthorized_offset != -1, "should be set"); | |
2946 return context->bool_field(_isAuthorized_offset) != 0; | |
2947 } | |
0 | 2948 |
2949 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2950 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2951 // Ensure klass is initialized | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2952 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
0 | 2953 // Allocate result |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2954 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
0 | 2955 // Fill in values |
2956 result->obj_field_put(_context_offset, context()); | |
2957 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2958 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
|
2959 // 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
|
2960 if (_isAuthorized_offset != -1) { |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2961 result->bool_field_put(_isAuthorized_offset, true); |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2962 } |
0 | 2963 return result; |
2964 } | |
2965 | |
2966 | |
2967 // Support for java_lang_ClassLoader | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2968 |
3938 | 2969 bool java_lang_ClassLoader::offsets_computed = false; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2970 int java_lang_ClassLoader::_loader_data_offset = -1; |
3938 | 2971 int java_lang_ClassLoader::parallelCapable_offset = -1; |
2972 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2973 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
|
2974 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
|
2975 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
|
2976 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2977 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2978 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2979 return *java_lang_ClassLoader::loader_data_addr(loader); |
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2980 } |
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2981 |
3938 | 2982 void java_lang_ClassLoader::compute_offsets() { |
2983 assert(!offsets_computed, "offsets should be initialized only once"); | |
2984 offsets_computed = true; | |
2985 | |
2986 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
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2987 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
3938 | 2988 compute_optional_offset(parallelCapable_offset, |
2989 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
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2990 |
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2991 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
3938 | 2992 } |
0 | 2993 |
2994 oop java_lang_ClassLoader::parent(oop loader) { | |
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2995 assert(is_instance(loader), "loader must be oop"); |
0 | 2996 return loader->obj_field(parent_offset); |
2997 } | |
2998 | |
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2999 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
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3000 assert(is_instance(loader), "loader must be oop"); |
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3001 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
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3002 oop acl = loader; |
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3003 debug_only(jint loop_count = 0); |
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3004 // This loop taken verbatim from ClassLoader.java: |
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3005 do { |
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3006 acl = parent(acl); |
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3007 if (cl == acl) { |
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3008 return true; |
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3009 } |
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3010 assert(++loop_count > 0, "loop_count overflow"); |
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3011 } while (acl != NULL); |
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3012 return false; |
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3013 } |
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3014 |
0 | 3015 |
3938 | 3016 // For class loader classes, parallelCapable defined |
3017 // based on non-null field | |
3018 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
3019 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
3020 if (!JDK_Version::is_gte_jdk17x_version() | |
3021 || parallelCapable_offset == -1) { | |
3022 // Default for backward compatibility is false | |
3023 return false; | |
3024 } | |
3025 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
3026 } | |
3027 | |
0 | 3028 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
3029 // Fix for 4474172; see evaluation for more details | |
3030 loader = non_reflection_class_loader(loader); | |
3031 | |
3032 oop cl = SystemDictionary::java_system_loader(); | |
3033 while(cl != NULL) { | |
3034 if (cl == loader) return true; | |
3035 cl = parent(cl); | |
3036 } | |
3037 return false; | |
3038 } | |
3039 | |
3040 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
3041 if (loader != NULL) { | |
3042 // See whether this is one of the class loaders associated with | |
3043 // the generated bytecodes for reflection, and if so, "magically" | |
3044 // delegate to its parent to prevent class loading from occurring | |
3045 // in places where applications using reflection didn't expect it. | |
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3046 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 3047 // This might be null in non-1.4 JDKs |
3048 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
3049 return parent(loader); | |
3050 } | |
3051 } | |
3052 return loader; | |
3053 } | |
3054 | |
3055 | |
3056 // Support for java_lang_System | |
3057 int java_lang_System::in_offset_in_bytes() { | |
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3058 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 3059 } |
3060 | |
3061 | |
3062 int java_lang_System::out_offset_in_bytes() { | |
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3063 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 3064 } |
3065 | |
3066 | |
3067 int java_lang_System::err_offset_in_bytes() { | |
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3068 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 3069 } |
3070 | |
3071 | |
11010 | 3072 bool java_lang_System::has_security_manager() { |
3073 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::System_klass()); | |
3074 address addr = ik->static_field_addr(static_security_offset); | |
3075 if (UseCompressedOops) { | |
3076 return oopDesc::load_decode_heap_oop((narrowOop *)addr) != NULL; | |
3077 } else { | |
3078 return oopDesc::load_decode_heap_oop((oop*)addr) != NULL; | |
3079 } | |
3080 } | |
0 | 3081 |
3938 | 3082 int java_lang_Class::_klass_offset; |
3083 int java_lang_Class::_array_klass_offset; | |
3084 int java_lang_Class::_oop_size_offset; | |
3085 int java_lang_Class::_static_oop_field_count_offset; | |
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3086 int java_lang_Class::_protection_domain_offset; |
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3087 int java_lang_Class::_init_lock_offset; |
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3088 int java_lang_Class::_signers_offset; |
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3089 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
0 | 3090 int java_lang_Throwable::backtrace_offset; |
3091 int java_lang_Throwable::detailMessage_offset; | |
3092 int java_lang_Throwable::cause_offset; | |
3093 int java_lang_Throwable::stackTrace_offset; | |
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3094 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 3095 int java_lang_reflect_AccessibleObject::override_offset; |
3096 int java_lang_reflect_Method::clazz_offset; | |
3097 int java_lang_reflect_Method::name_offset; | |
3098 int java_lang_reflect_Method::returnType_offset; | |
3099 int java_lang_reflect_Method::parameterTypes_offset; | |
3100 int java_lang_reflect_Method::exceptionTypes_offset; | |
3101 int java_lang_reflect_Method::slot_offset; | |
3102 int java_lang_reflect_Method::modifiers_offset; | |
3103 int java_lang_reflect_Method::signature_offset; | |
3104 int java_lang_reflect_Method::annotations_offset; | |
3105 int java_lang_reflect_Method::parameter_annotations_offset; | |
3106 int java_lang_reflect_Method::annotation_default_offset; | |
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3107 int java_lang_reflect_Method::type_annotations_offset; |
0 | 3108 int java_lang_reflect_Constructor::clazz_offset; |
3109 int java_lang_reflect_Constructor::parameterTypes_offset; | |
3110 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
3111 int java_lang_reflect_Constructor::slot_offset; | |
3112 int java_lang_reflect_Constructor::modifiers_offset; | |
3113 int java_lang_reflect_Constructor::signature_offset; | |
3114 int java_lang_reflect_Constructor::annotations_offset; | |
3115 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
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3116 int java_lang_reflect_Constructor::type_annotations_offset; |
0 | 3117 int java_lang_reflect_Field::clazz_offset; |
3118 int java_lang_reflect_Field::name_offset; | |
3119 int java_lang_reflect_Field::type_offset; | |
3120 int java_lang_reflect_Field::slot_offset; | |
3121 int java_lang_reflect_Field::modifiers_offset; | |
3122 int java_lang_reflect_Field::signature_offset; | |
3123 int java_lang_reflect_Field::annotations_offset; | |
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3124 int java_lang_reflect_Field::type_annotations_offset; |
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3125 int java_lang_reflect_Parameter::name_offset; |
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3126 int java_lang_reflect_Parameter::modifiers_offset; |
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3127 int java_lang_reflect_Parameter::index_offset; |
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3128 int java_lang_reflect_Parameter::executable_offset; |
0 | 3129 int java_lang_boxing_object::value_offset; |
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3130 int java_lang_boxing_object::long_value_offset; |
0 | 3131 int java_lang_ref_Reference::referent_offset; |
3132 int java_lang_ref_Reference::queue_offset; | |
3133 int java_lang_ref_Reference::next_offset; | |
3134 int java_lang_ref_Reference::discovered_offset; | |
3135 int java_lang_ref_Reference::static_lock_offset; | |
3136 int java_lang_ref_Reference::static_pending_offset; | |
3137 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
3138 int java_lang_ref_SoftReference::timestamp_offset; | |
3139 int java_lang_ref_SoftReference::static_clock_offset; | |
3140 int java_lang_ClassLoader::parent_offset; | |
3141 int java_lang_System::static_in_offset; | |
3142 int java_lang_System::static_out_offset; | |
3143 int java_lang_System::static_err_offset; | |
11010 | 3144 int java_lang_System::static_security_offset; |
0 | 3145 int java_lang_StackTraceElement::declaringClass_offset; |
3146 int java_lang_StackTraceElement::methodName_offset; | |
3147 int java_lang_StackTraceElement::fileName_offset; | |
3148 int java_lang_StackTraceElement::lineNumber_offset; | |
3149 int java_lang_AssertionStatusDirectives::classes_offset; | |
3150 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
3151 int java_lang_AssertionStatusDirectives::packages_offset; | |
3152 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
3153 int java_lang_AssertionStatusDirectives::deflt_offset; | |
3154 int java_nio_Buffer::_limit_offset; | |
3155 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
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3156 int sun_reflect_ConstantPool::_oop_offset; |
0 | 3157 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
3158 | |
3159 | |
3160 // Support for java_lang_StackTraceElement | |
3161 | |
3162 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
3163 element->obj_field_put(fileName_offset, value); | |
3164 } | |
3165 | |
3166 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
3167 element->obj_field_put(declaringClass_offset, value); | |
3168 } | |
3169 | |
3170 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
3171 element->obj_field_put(methodName_offset, value); | |
3172 } | |
3173 | |
3174 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
3175 element->int_field_put(lineNumber_offset, value); | |
3176 } | |
3177 | |
3178 | |
3179 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
3180 | |
3181 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
3182 o->obj_field_put(classes_offset, val); | |
3183 } | |
3184 | |
3185 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
3186 o->obj_field_put(classEnabled_offset, val); | |
3187 } | |
3188 | |
3189 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
3190 o->obj_field_put(packages_offset, val); | |
3191 } | |
3192 | |
3193 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
3194 o->obj_field_put(packageEnabled_offset, val); | |
3195 } | |
3196 | |
3197 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
3198 o->bool_field_put(deflt_offset, val); | |
3199 } | |
3200 | |
3201 | |
3202 // Support for intrinsification of java.nio.Buffer.checkIndex | |
3203 int java_nio_Buffer::limit_offset() { | |
3204 return _limit_offset; | |
3205 } | |
3206 | |
3207 | |
3208 void java_nio_Buffer::compute_offsets() { | |
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3209 Klass* k = SystemDictionary::nio_Buffer_klass(); |
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3210 assert(k != NULL, "must be loaded in 1.4+"); |
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3211 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 3212 } |
3213 | |
3214 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
3215 if (_owner_offset != 0) return; | |
3216 | |
3217 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
3218 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
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3219 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
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3220 compute_offset(_owner_offset, k, |
0 | 3221 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
3222 } | |
3223 | |
3224 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
3225 assert(_owner_offset != 0, "Must be initialized"); | |
3226 return obj->obj_field(_owner_offset); | |
3227 } | |
3228 | |
3229 // Compute hard-coded offsets | |
3230 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
3231 // are not available to determine the offset_of_static_fields. | |
3232 void JavaClasses::compute_hard_coded_offsets() { | |
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3233 const int x = heapOopSize; |
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3234 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 3235 |
3236 // Throwable Class | |
3237 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3238 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3239 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3240 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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3241 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3242 |
3243 // java_lang_boxing_object | |
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3244 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3245 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3246 |
3247 // java_lang_ref_Reference: | |
3248 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3249 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3250 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3251 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3252 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3253 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3254 // Artificial fields for java_lang_ref_Reference | |
3255 // The first field is for the discovered field added in 1.4 | |
3256 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3257 | |
3258 // java_lang_ref_SoftReference Class | |
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3259 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3260 // Don't multiply static fields because they are always in wordSize units |
3261 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3262 | |
3263 // java_lang_ClassLoader | |
3264 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3265 | |
3266 // java_lang_System | |
3267 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3268 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3269 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
11010 | 3270 java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x; |
0 | 3271 |
3272 // java_lang_StackTraceElement | |
3273 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3274 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3275 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3276 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3277 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3278 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3279 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3280 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3281 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3282 | |
3283 } | |
3284 | |
3285 | |
3286 // Compute non-hard-coded field offsets of all the classes in this file | |
3287 void JavaClasses::compute_offsets() { | |
3938 | 3288 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3289 java_lang_ClassLoader::compute_offsets(); | |
0 | 3290 java_lang_Thread::compute_offsets(); |
3291 java_lang_ThreadGroup::compute_offsets(); | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
3292 if (EnableInvokeDynamic) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3293 java_lang_invoke_MethodHandle::compute_offsets(); |
12010
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
3294 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3295 java_lang_invoke_MemberName::compute_offsets(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3296 java_lang_invoke_LambdaForm::compute_offsets(); |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3297 java_lang_invoke_MethodType::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3298 java_lang_invoke_CallSite::compute_offsets(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
3299 } |
0 | 3300 java_security_AccessControlContext::compute_offsets(); |
3301 // Initialize reflection classes. The layouts of these classes | |
3302 // changed with the new reflection implementation in JDK 1.4, and | |
3303 // since the Universe doesn't know what JDK version it is until this | |
3304 // point we defer computation of these offsets until now. | |
3305 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3306 java_lang_reflect_Method::compute_offsets(); | |
3307 java_lang_reflect_Constructor::compute_offsets(); | |
3308 java_lang_reflect_Field::compute_offsets(); | |
3309 if (JDK_Version::is_gte_jdk14x_version()) { | |
3310 java_nio_Buffer::compute_offsets(); | |
3311 } | |
3312 if (JDK_Version::is_gte_jdk15x_version()) { | |
3313 sun_reflect_ConstantPool::compute_offsets(); | |
3314 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3315 } | |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7458
diff
changeset
|
3316 if (JDK_Version::is_jdk18x_version()) |
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7458
diff
changeset
|
3317 java_lang_reflect_Parameter::compute_offsets(); |
710 | 3318 |
3319 // generated interpreter code wants to know about the offsets we just computed: | |
3320 AbstractAssembler::update_delayed_values(); | |
0 | 3321 } |
3322 | |
3323 #ifndef PRODUCT | |
3324 | |
3325 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3326 // against changes in the class files | |
3327 | |
3328 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3329 EXCEPTION_MARK; | |
3330 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3331 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3332 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3333 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3334 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3335 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3336 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3337 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3338 return false; | |
3339 } | |
3340 if (fd.is_static()) { | |
3341 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3342 return false; | |
3343 } | |
3344 if (fd.offset() == hardcoded_offset ) { | |
3345 return true; | |
3346 } else { | |
3347 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3348 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3349 return false; | |
3350 } | |
3351 } | |
3352 | |
3353 | |
3354 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3355 EXCEPTION_MARK; | |
3356 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3357 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3358 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3359 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3360 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3361 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3362 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3363 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3364 return false; | |
3365 } | |
3366 if (!fd.is_static()) { | |
3367 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3368 return false; | |
3369 } | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3370 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
0 | 3371 return true; |
3372 } else { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3373 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 | 3374 return false; |
3375 } | |
3376 } | |
3377 | |
3378 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3379 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3380 EXCEPTION_MARK; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3381 fieldDescriptor fd; |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3382 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3383 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3384 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3385 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3386 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3387 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3388 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3389 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3390 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3391 if (!fd.is_static() || !fd.has_initial_value()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3392 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3393 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3394 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3395 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3396 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3397 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3398 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3399 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3400 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3401 return true; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3402 } else { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3403 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3404 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3405 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3406 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3407 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3408 |
0 | 3409 // Check the hard-coded field offsets of all the classes in this file |
3410 | |
3411 void JavaClasses::check_offsets() { | |
3412 bool valid = true; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3413 HandleMark hm; |
0 | 3414 |
3415 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3416 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3417 | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3418 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3419 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3420 |
0 | 3421 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3422 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3423 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3424 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3425 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3426 |
0 | 3427 // java.lang.String |
3428 | |
3429 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
6057 | 3430 if (java_lang_String::has_offset_field()) { |
3431 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3432 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3433 } | |
3434 if (java_lang_String::has_hash_field()) { | |
3435 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3436 } | |
0 | 3437 |
3438 // java.lang.Class | |
3439 | |
3440 // Fake fields | |
3441 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3442 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3443 | |
3444 // java.lang.Throwable | |
3445 | |
3446 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3447 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3448 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3449 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3450 | |
3451 // Boxed primitive objects (java_lang_boxing_object) | |
3452 | |
3453 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3454 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3455 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3456 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3457 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3458 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3459 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3460 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3461 |
3462 // java.lang.ClassLoader | |
3463 | |
3464 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3465 | |
3466 // java.lang.System | |
3467 | |
3468 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3469 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3470 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
11010 | 3471 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, security, "Ljava/lang/SecurityManager;"); |
0 | 3472 |
3473 // java.lang.StackTraceElement | |
3474 | |
3475 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3476 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3477 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3478 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3479 | |
3480 // java.lang.ref.Reference | |
3481 | |
3482 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3483 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3484 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3485 // Fake field | |
3486 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3487 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3488 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3489 | |
3490 // java.lang.ref.SoftReference | |
3491 | |
3492 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3493 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3494 | |
3495 // java.lang.AssertionStatusDirectives | |
3496 // | |
3497 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3498 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3499 // into merlin "for some time." Without it, the vm will fail with early | |
3500 // merlin builds. | |
3501 | |
3502 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3503 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3504 const char* sig = "[Ljava/lang/String;"; | |
3505 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3506 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3507 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3508 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3509 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3510 } | |
3511 | |
3512 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3513 } | |
3514 | |
3515 #endif // PRODUCT | |
3516 | |
3938 | 3517 int InjectedField::compute_offset() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3518 Klass* klass_oop = klass(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3519 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
3938 | 3520 if (!may_be_java && !fs.access_flags().is_internal()) { |
3521 // Only look at injected fields | |
3522 continue; | |
3523 } | |
3524 if (fs.name() == name() && fs.signature() == signature()) { | |
3525 return fs.offset(); | |
3526 } | |
3527 } | |
3528 ResourceMark rm; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3529 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
|
3530 #ifndef PRODUCT |
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3531 klass_oop->print(); |
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3532 tty->print_cr("all fields:"); |
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3533 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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3534 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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3535 } |
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3536 #endif //PRODUCT |
3938 | 3537 fatal("Invalid layout of preloaded class"); |
3538 return -1; | |
3539 } | |
3540 | |
0 | 3541 void javaClasses_init() { |
3542 JavaClasses::compute_offsets(); | |
3543 JavaClasses::check_offsets(); | |
3544 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3545 } |