Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 18439:180b55c6a189
LinearScan: update VirtualStackSlot in intervals.spillSlot.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Tue, 11 Nov 2014 17:01:47 +0100 |
parents | 52b4284cb496 |
children | 8f2fb6bec986 |
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")); |
22
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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) { |
2418
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7032129: Native memory usage grow unexpectedly for vm/oom/*InternedString tests
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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); | |
2418
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7032129: Native memory usage grow unexpectedly for vm/oom/*InternedString tests
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parents:
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|
372 } |
352622fd140a
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parents:
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diff
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|
373 |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
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
twisti
parents:
931
diff
changeset
|
379 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
380 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
381 return sym; |
0 | 382 } |
383 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
384 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
changeset
|
385 typeArrayOop value = java_lang_String::value(java_string); |
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6814659: separable cleanups and subroutines for 6655638
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386 int offset = java_lang_String::offset(java_string); |
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6814659: separable cleanups and subroutines for 6655638
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387 int length = java_lang_String::length(java_string); |
949
489a4f8dcd0f
6865583: Verbose CIPrintMethodCodes asserts when ldc an empty String
twisti
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931
diff
changeset
|
388 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
665
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6814659: separable cleanups and subroutines for 6655638
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diff
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389 return SymbolTable::probe_unicode(base, length); |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
390 } |
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6814659: separable cleanups and subroutines for 6655638
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diff
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|
391 |
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diff
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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
parents:
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
sla
parents:
1980
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
sla
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 ==
dcubed
parents:
12010
diff
changeset
|
443 bool java_lang_String::equals(oop str1, oop str2) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
444 assert(str1->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
445 "must be java String"); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
446 assert(str2->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
447 "must be java String"); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
448 typeArrayOop value1 = java_lang_String::value(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
449 int offset1 = java_lang_String::offset(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
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diff
changeset
|
450 int length1 = java_lang_String::length(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
451 typeArrayOop value2 = java_lang_String::value(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
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diff
changeset
|
452 int offset2 = java_lang_String::offset(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
12010
diff
changeset
|
453 int length2 = java_lang_String::length(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
454 |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
455 if (length1 != length2) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
456 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
457 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
458 for (int i = 0; i < length1; i++) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
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parents:
12010
diff
changeset
|
459 if (value1->char_at(i + offset1) != value2->char_at(i + offset2)) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
460 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
461 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
462 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
463 return true; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
464 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
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
never
parents:
2357
diff
changeset
|
489 assert(mirror.not_null() && fd->is_static(), "just checking"); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
490 if (fd->has_initial_value()) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
491 BasicType t = fd->field_type(); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
492 switch (t) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
493 case T_BYTE: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
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
never
parents:
2357
diff
changeset
|
495 break; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
496 case T_BOOLEAN: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
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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()); |
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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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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); |
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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); |
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524 mirror()->obj_field_put(fd->offset(), string); |
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|
525 } |
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|
526 break; |
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|
527 default: |
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528 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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529 "Illegal ConstantValue attribute in class file"); |
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|
530 } |
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|
531 } |
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|
532 } |
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|
533 |
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|
534 |
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|
535 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
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536 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
2376
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537 |
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538 // If the offset was read from the shared archive, it was fixed up already |
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539 if (!k->is_shared()) { |
10343
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540 if (k->oop_is_instance()) { |
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541 // During bootstrap, java.lang.Class wasn't loaded so static field |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
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542 // offsets were computed without the size added it. Go back and |
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8003421: NPG: Move oops out of InstanceKlass into mirror
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543 // update all the static field offsets to included the size. |
6bd680e9ea35
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544 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
6bd680e9ea35
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545 if (fs.access_flags().is_static()) { |
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546 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
6bd680e9ea35
8003421: NPG: Move oops out of InstanceKlass into mirror
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547 fs.set_offset(real_offset); |
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548 } |
3938 | 549 } |
550 } | |
2376
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diff
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|
551 } |
10343
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8003421: NPG: Move oops out of InstanceKlass into mirror
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552 create_mirror(k, Handle(NULL), CHECK); |
2376
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553 } |
0 | 554 |
17883
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8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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555 void java_lang_Class::initialize_mirror_fields(KlassHandle k, |
9428a0b94204
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556 Handle mirror, |
9428a0b94204
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557 Handle protection_domain, |
9428a0b94204
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558 TRAPS) { |
9428a0b94204
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559 // Allocate a simple java object for a lock. |
9428a0b94204
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560 // This needs to be a java object because during class initialization |
9428a0b94204
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|
561 // it can be held across a java call. |
9428a0b94204
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562 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK); |
9428a0b94204
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563 set_init_lock(mirror(), r); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
564 |
9428a0b94204
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|
565 // Set protection domain also |
18041 | 566 #ifdef GRAAL |
567 if (k->class_loader() == SystemDictionary::graal_loader()) { | |
568 // Same protection domain as for classes loaded by the boot loader | |
569 protection_domain = Handle(); | |
570 } | |
571 #endif | |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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572 set_protection_domain(mirror(), protection_domain()); |
9428a0b94204
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|
573 |
9428a0b94204
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|
574 // Initialize static fields |
9428a0b94204
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|
575 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, mirror, CHECK); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
576 } |
9428a0b94204
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|
577 |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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578 void java_lang_Class::create_mirror(KlassHandle k, Handle protection_domain, TRAPS) { |
0 | 579 assert(k->java_mirror() == NULL, "should only assign mirror once"); |
580 // Use this moment of initialization to cache modifier_flags also, | |
581 // to support Class.getModifiers(). Instance classes recalculate | |
582 // the cached flags after the class file is parsed, but before the | |
583 // class is put into the system dictionary. | |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
584 int computed_modifiers = k->compute_modifier_flags(CHECK); |
0 | 585 k->set_modifier_flags(computed_modifiers); |
6725
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6964458: Reimplement class meta-data storage to use native memory
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586 // Class_klass has to be loaded because it is used to allocate |
da91efe96a93
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|
587 // the mirror. |
da91efe96a93
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|
588 if (SystemDictionary::Class_klass_loaded()) { |
0 | 589 // Allocate mirror (java.lang.Class instance) |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
590 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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diff
changeset
|
591 |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
592 // Setup indirection from mirror->klass |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
593 if (!k.is_null()) { |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
594 java_lang_Class::set_klass(mirror(), k()); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
595 } |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
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6725
diff
changeset
|
596 |
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
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diff
changeset
|
597 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
598 assert(oop_size(mirror()) == mk->instance_size(k), "should have been set"); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
599 |
2376
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7017732: move static fields into Class to prepare for perm gen removal
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|
600 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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parents:
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diff
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|
601 |
0 | 602 // It might also have a component mirror. This mirror must already exist. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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603 if (k->oop_is_array()) { |
0 | 604 Handle comp_mirror; |
605 if (k->oop_is_typeArray()) { | |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
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diff
changeset
|
606 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
0 | 607 comp_mirror = Universe::java_mirror(type); |
6725
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|
608 } else { |
da91efe96a93
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|
609 assert(k->oop_is_objArray(), "Must be"); |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
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changeset
|
610 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
6725
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611 assert(element_klass != NULL, "Must have an element klass"); |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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612 comp_mirror = element_klass->java_mirror(); |
0 | 613 } |
6725
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614 assert(comp_mirror.not_null(), "must have a mirror"); |
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|
615 |
17883
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
616 // Two-way link between the array klass and its component mirror: |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
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changeset
|
617 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
6725
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618 set_array_klass(comp_mirror(), k()); |
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619 } else { |
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620 assert(k->oop_is_instance(), "Must be"); |
10343
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8003421: NPG: Move oops out of InstanceKlass into mirror
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|
621 |
17883
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8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
622 initialize_mirror_fields(k, mirror, protection_domain, THREAD); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
623 if (HAS_PENDING_EXCEPTION) { |
9428a0b94204
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624 // If any of the fields throws an exception like OOM remove the klass field |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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625 // 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)
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|
626 // This mirror looks like a primitive type, which logically it is because it |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
627 // it represents no class. |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
628 java_lang_Class::set_klass(mirror(), NULL); |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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|
629 return; |
9428a0b94204
8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
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630 } |
0 | 631 } |
17883
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|
632 |
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633 // Setup indirection from klass->mirror last |
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634 // after any exceptions can happen during allocations. |
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635 if (!k.is_null()) { |
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636 k->set_java_mirror(mirror()); |
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637 } |
0 | 638 } else { |
6725
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639 if (fixup_mirror_list() == NULL) { |
da91efe96a93
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640 GrowableArray<Klass*>* list = |
da91efe96a93
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641 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
da91efe96a93
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642 set_fixup_mirror_list(list); |
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643 } |
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644 fixup_mirror_list()->push(k()); |
0 | 645 } |
646 } | |
647 | |
648 | |
2376
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649 int java_lang_Class::oop_size(oop java_class) { |
3938 | 650 assert(_oop_size_offset != 0, "must be set"); |
651 return java_class->int_field(_oop_size_offset); | |
2376
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652 } |
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653 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 654 assert(_oop_size_offset != 0, "must be set"); |
655 java_class->int_field_put(_oop_size_offset, size); | |
2376
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656 } |
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657 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 658 assert(_static_oop_field_count_offset != 0, "must be set"); |
659 return java_class->int_field(_static_oop_field_count_offset); | |
2376
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660 } |
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661 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 662 assert(_static_oop_field_count_offset != 0, "must be set"); |
663 java_class->int_field_put(_static_oop_field_count_offset, size); | |
2376
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664 } |
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665 |
10343
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666 oop java_lang_Class::protection_domain(oop java_class) { |
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667 assert(_protection_domain_offset != 0, "must be set"); |
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668 return java_class->obj_field(_protection_domain_offset); |
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669 } |
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670 void java_lang_Class::set_protection_domain(oop java_class, oop pd) { |
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671 assert(_protection_domain_offset != 0, "must be set"); |
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672 java_class->obj_field_put(_protection_domain_offset, pd); |
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673 } |
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674 |
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675 oop java_lang_Class::init_lock(oop java_class) { |
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676 assert(_init_lock_offset != 0, "must be set"); |
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677 return java_class->obj_field(_init_lock_offset); |
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678 } |
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679 void java_lang_Class::set_init_lock(oop java_class, oop init_lock) { |
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680 assert(_init_lock_offset != 0, "must be set"); |
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681 java_class->obj_field_put(_init_lock_offset, init_lock); |
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682 } |
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683 |
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684 objArrayOop java_lang_Class::signers(oop java_class) { |
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685 assert(_signers_offset != 0, "must be set"); |
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686 return (objArrayOop)java_class->obj_field(_signers_offset); |
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687 } |
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688 void java_lang_Class::set_signers(oop java_class, objArrayOop signers) { |
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689 assert(_signers_offset != 0, "must be set"); |
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|
690 java_class->obj_field_put(_signers_offset, (oop)signers); |
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691 } |
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|
692 |
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|
693 |
0 | 694 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
695 // This should be improved by adding a field at the Java level or by | |
696 // introducing a new VM klass (see comment in ClassFileParser) | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
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697 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
0 | 698 if (type != T_VOID) { |
6725
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699 Klass* aklass = Universe::typeArrayKlassObj(type); |
0 | 700 assert(aklass != NULL, "correct bootstrap"); |
701 set_array_klass(java_class, aklass); | |
702 } | |
4009 | 703 #ifdef ASSERT |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
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6725
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|
704 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 705 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
706 #endif | |
0 | 707 return java_class; |
708 } | |
709 | |
710 | |
6725
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711 Klass* java_lang_Class::as_Klass(oop java_class) { |
0 | 712 //%note memory_2 |
2376
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713 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
6725
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714 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
0 | 715 assert(k == NULL || k->is_klass(), "type check"); |
716 return k; | |
717 } | |
718 | |
719 | |
6725
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720 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
4009 | 721 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
6725
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722 java_class->metadata_field_put(_klass_offset, klass); |
4009 | 723 } |
724 | |
725 | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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|
726 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
c89f86385056
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727 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
728 Symbol* name = NULL; |
665
c89f86385056
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579
diff
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|
729 bool is_instance = false; |
c89f86385056
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|
730 if (is_primitive(java_class)) { |
c89f86385056
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|
731 name = vmSymbols::type_signature(primitive_type(java_class)); |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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|
732 } else { |
6725
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733 Klass* k = as_Klass(java_class); |
6983 | 734 is_instance = k->oop_is_instance(); |
735 name = k->name(); | |
665
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|
736 } |
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|
737 if (name == NULL) { |
c89f86385056
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|
738 st->print("<null>"); |
c89f86385056
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|
739 return; |
c89f86385056
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|
740 } |
c89f86385056
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|
741 if (is_instance) st->print("L"); |
c89f86385056
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|
742 st->write((char*) name->base(), (int) name->utf8_length()); |
c89f86385056
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|
743 if (is_instance) st->print(";"); |
c89f86385056
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|
744 } |
c89f86385056
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|
745 |
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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|
746 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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|
747 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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diff
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|
748 Symbol* name; |
665
c89f86385056
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diff
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|
749 if (is_primitive(java_class)) { |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
750 name = vmSymbols::type_signature(primitive_type(java_class)); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
751 // Because this can create a new symbol, the caller has to decrement |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
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|
752 // 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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1989
diff
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|
753 // 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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1989
diff
changeset
|
754 name->increment_refcount(); |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
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|
755 } else { |
6725
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|
756 Klass* k = as_Klass(java_class); |
6983 | 757 if (!k->oop_is_instance()) { |
758 name = k->name(); | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
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|
759 name->increment_refcount(); |
665
c89f86385056
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jrose
parents:
579
diff
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|
760 } else { |
c89f86385056
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diff
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|
761 ResourceMark rm; |
6983 | 762 const char* sigstr = k->signature_name(); |
665
c89f86385056
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|
763 int siglen = (int) strlen(sigstr); |
2177
3582bf76420e
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coleenp
parents:
1989
diff
changeset
|
764 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
765 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
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|
766 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
767 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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|
768 } |
665
c89f86385056
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jrose
parents:
579
diff
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|
769 } |
c89f86385056
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|
770 } |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
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|
771 return name; |
665
c89f86385056
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jrose
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579
diff
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|
772 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
773 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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diff
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|
774 |
6725
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|
775 Klass* java_lang_Class::array_klass(oop java_class) { |
da91efe96a93
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|
776 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
6983 | 777 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
0 | 778 return k; |
779 } | |
780 | |
781 | |
6725
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|
782 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
6983 | 783 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
6725
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|
784 java_class->metadata_field_put(_array_klass_offset, klass); |
0 | 785 } |
786 | |
787 | |
788 bool java_lang_Class::is_primitive(oop java_class) { | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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diff
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|
789 // should assert: |
c89f86385056
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790 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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791 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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792 |
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793 #ifdef ASSERT |
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794 if (is_primitive) { |
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795 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
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796 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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797 "Should be either the T_VOID primitive or a java primitive"); |
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798 } |
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799 #endif |
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800 |
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801 return is_primitive; |
0 | 802 } |
803 | |
804 | |
805 BasicType java_lang_Class::primitive_type(oop java_class) { | |
806 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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807 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
0 | 808 BasicType type = T_VOID; |
809 if (ak != NULL) { | |
810 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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811 type = ArrayKlass::cast(ak)->element_type(); |
0 | 812 } else { |
813 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
814 } | |
815 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
816 return type; | |
817 } | |
818 | |
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819 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
665
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820 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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821 if (is_primitive(java_class)) { |
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822 if (reference_klass != NULL) |
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823 (*reference_klass) = NULL; |
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824 return primitive_type(java_class); |
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825 } else { |
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826 if (reference_klass != NULL) |
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827 (*reference_klass) = as_Klass(java_class); |
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828 return T_OBJECT; |
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829 } |
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830 } |
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831 |
0 | 832 |
833 oop java_lang_Class::primitive_mirror(BasicType t) { | |
834 oop mirror = Universe::java_mirror(t); | |
1142 | 835 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 836 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
837 return mirror; | |
838 } | |
839 | |
840 bool java_lang_Class::offsets_computed = false; | |
841 int java_lang_Class::classRedefinedCount_offset = -1; | |
842 | |
843 void java_lang_Class::compute_offsets() { | |
844 assert(!offsets_computed, "offsets should be initialized only once"); | |
845 offsets_computed = true; | |
846 | |
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847 Klass* klass_oop = SystemDictionary::Class_klass(); |
0 | 848 // The classRedefinedCount field is only present starting in 1.5, |
849 // so don't go fatal. | |
132
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850 compute_optional_offset(classRedefinedCount_offset, |
3938 | 851 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
852 | |
853 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 854 } |
855 | |
856 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
857 if (!JDK_Version::is_gte_jdk15x_version() | |
858 || classRedefinedCount_offset == -1) { | |
859 // The classRedefinedCount field is only present starting in 1.5. | |
860 // If we don't have an offset for it then just return -1 as a marker. | |
861 return -1; | |
862 } | |
863 | |
864 return the_class_mirror->int_field(classRedefinedCount_offset); | |
865 } | |
866 | |
867 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
868 if (!JDK_Version::is_gte_jdk15x_version() | |
869 || classRedefinedCount_offset == -1) { | |
870 // The classRedefinedCount field is only present starting in 1.5. | |
871 // If we don't have an offset for it then nothing to set. | |
872 return; | |
873 } | |
874 | |
875 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
876 } | |
877 | |
878 | |
879 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
880 // platform thread structure, and a eetop offset which was used for thread | |
881 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
882 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
883 // instead of the privateInfo_offset. | |
884 // | |
885 // Note: The stackSize field is only present starting in 1.4. | |
886 | |
887 int java_lang_Thread::_name_offset = 0; | |
888 int java_lang_Thread::_group_offset = 0; | |
889 int java_lang_Thread::_contextClassLoader_offset = 0; | |
890 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
891 int java_lang_Thread::_priority_offset = 0; | |
892 int java_lang_Thread::_eetop_offset = 0; | |
893 int java_lang_Thread::_daemon_offset = 0; | |
894 int java_lang_Thread::_stillborn_offset = 0; | |
895 int java_lang_Thread::_stackSize_offset = 0; | |
896 int java_lang_Thread::_tid_offset = 0; | |
897 int java_lang_Thread::_thread_status_offset = 0; | |
898 int java_lang_Thread::_park_blocker_offset = 0; | |
899 int java_lang_Thread::_park_event_offset = 0 ; | |
900 | |
901 | |
902 void java_lang_Thread::compute_offsets() { | |
903 assert(_group_offset == 0, "offsets should be initialized only once"); | |
904 | |
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905 Klass* k = SystemDictionary::Thread_klass(); |
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906 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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907 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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908 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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909 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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910 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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911 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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912 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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913 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 914 // The stackSize field is only present starting in 1.4, so don't go fatal. |
132
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915 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 916 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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917 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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918 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 919 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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920 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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921 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 922 vmSymbols::long_signature()); |
923 } | |
924 | |
925 | |
926 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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927 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 928 } |
929 | |
930 | |
931 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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932 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 933 } |
934 | |
935 | |
936 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
937 oop name = java_thread->obj_field(_name_offset); | |
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938 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
0 | 939 return typeArrayOop(name); |
940 } | |
941 | |
942 | |
943 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
944 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
945 java_thread->obj_field_put(_name_offset, name); | |
946 } | |
947 | |
948 | |
949 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
950 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
951 } | |
952 | |
953 | |
954 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
955 java_thread->int_field_put(_priority_offset, priority); | |
956 } | |
957 | |
958 | |
959 oop java_lang_Thread::threadGroup(oop java_thread) { | |
960 return java_thread->obj_field(_group_offset); | |
961 } | |
962 | |
963 | |
964 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
965 return java_thread->bool_field(_stillborn_offset) != 0; | |
966 } | |
967 | |
968 | |
969 // We never have reason to turn the stillborn bit off | |
970 void java_lang_Thread::set_stillborn(oop java_thread) { | |
971 java_thread->bool_field_put(_stillborn_offset, true); | |
972 } | |
973 | |
974 | |
975 bool java_lang_Thread::is_alive(oop java_thread) { | |
976 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
977 return (thr != NULL); | |
978 } | |
979 | |
980 | |
981 bool java_lang_Thread::is_daemon(oop java_thread) { | |
982 return java_thread->bool_field(_daemon_offset) != 0; | |
983 } | |
984 | |
985 | |
986 void java_lang_Thread::set_daemon(oop java_thread) { | |
987 java_thread->bool_field_put(_daemon_offset, true); | |
988 } | |
989 | |
990 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
991 return java_thread->obj_field(_contextClassLoader_offset); | |
992 } | |
993 | |
994 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
995 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
996 } | |
997 | |
998 | |
999 jlong java_lang_Thread::stackSize(oop java_thread) { | |
1000 // The stackSize field is only present starting in 1.4 | |
1001 if (_stackSize_offset > 0) { | |
1002 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
1003 return java_thread->long_field(_stackSize_offset); | |
1004 } else { | |
1005 return 0; | |
1006 } | |
1007 } | |
1008 | |
1009 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
1010 void java_lang_Thread::set_thread_status(oop java_thread, | |
1011 java_lang_Thread::ThreadStatus status) { | |
1012 // The threadStatus is only present starting in 1.5 | |
1013 if (_thread_status_offset > 0) { | |
1014 java_thread->int_field_put(_thread_status_offset, status); | |
1015 } | |
1016 } | |
1017 | |
1018 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
1019 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
10405 | 1020 assert(Thread::current()->is_Watcher_thread() || Thread::current()->is_VM_thread() || |
0 | 1021 JavaThread::current()->thread_state() == _thread_in_vm, |
1022 "Java Thread is not running in vm"); | |
1023 // The threadStatus is only present starting in 1.5 | |
1024 if (_thread_status_offset > 0) { | |
1025 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
1026 } else { | |
1027 // All we can easily figure out is if it is alive, but that is | |
1028 // enough info for a valid unknown status. | |
1029 // These aren't restricted to valid set ThreadStatus values, so | |
1030 // use JVMTI values and cast. | |
1031 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
1032 if (thr == NULL) { | |
1033 // the thread hasn't run yet or is in the process of exiting | |
1034 return NEW; | |
1035 } | |
1036 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
1037 } | |
1038 } | |
1039 | |
1040 | |
1041 jlong java_lang_Thread::thread_id(oop java_thread) { | |
1042 // The thread ID field is only present starting in 1.5 | |
1043 if (_tid_offset > 0) { | |
1044 return java_thread->long_field(_tid_offset); | |
1045 } else { | |
1046 return 0; | |
1047 } | |
1048 } | |
1049 | |
1050 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 1051 assert(JDK_Version::current().supports_thread_park_blocker() && |
1052 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 1053 |
1054 if (_park_blocker_offset > 0) { | |
1055 return java_thread->obj_field(_park_blocker_offset); | |
1056 } | |
1057 | |
1058 return NULL; | |
1059 } | |
1060 | |
1061 jlong java_lang_Thread::park_event(oop java_thread) { | |
1062 if (_park_event_offset > 0) { | |
1063 return java_thread->long_field(_park_event_offset); | |
1064 } | |
1065 return 0; | |
1066 } | |
1067 | |
1068 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
1069 if (_park_event_offset > 0) { | |
1070 java_thread->long_field_put(_park_event_offset, ptr); | |
1071 return true; | |
1072 } | |
1073 return false; | |
1074 } | |
1075 | |
1076 | |
1077 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
1078 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
1079 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
1080 switch (status) { | |
1081 case NEW : return "NEW"; | |
1082 case RUNNABLE : return "RUNNABLE"; | |
1083 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
1084 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
1085 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
1086 case PARKED : return "WAITING (parking)"; | |
1087 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
1088 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
1089 case TERMINATED : return "TERMINATED"; | |
1090 default : return "UNKNOWN"; | |
1091 }; | |
1092 } | |
1093 int java_lang_ThreadGroup::_parent_offset = 0; | |
1094 int java_lang_ThreadGroup::_name_offset = 0; | |
1095 int java_lang_ThreadGroup::_threads_offset = 0; | |
1096 int java_lang_ThreadGroup::_groups_offset = 0; | |
1097 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
1098 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
1099 int java_lang_ThreadGroup::_daemon_offset = 0; | |
1100 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
1101 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
1102 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
1103 | |
1104 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
1105 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1106 return java_thread_group->obj_field(_parent_offset); | |
1107 } | |
1108 | |
1109 // ("name as oop" accessor is not necessary) | |
1110 | |
1111 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
1112 oop name = java_thread_group->obj_field(_name_offset); | |
1113 // ThreadGroup.name can be null | |
1114 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
1115 } | |
1116 | |
1117 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
1118 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1119 return java_thread_group->int_field(_nthreads_offset); | |
1120 } | |
1121 | |
1122 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
1123 oop threads = java_thread_group->obj_field(_threads_offset); | |
1124 assert(threads != NULL, "threadgroups should have threads"); | |
1125 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1126 return objArrayOop(threads); | |
1127 } | |
1128 | |
1129 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1130 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1131 return java_thread_group->int_field(_ngroups_offset); | |
1132 } | |
1133 | |
1134 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1135 oop groups = java_thread_group->obj_field(_groups_offset); | |
1136 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1137 return objArrayOop(groups); | |
1138 } | |
1139 | |
1140 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1141 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1142 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1143 } | |
1144 | |
1145 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1146 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1147 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1148 } | |
1149 | |
1150 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1151 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1152 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1153 } | |
1154 | |
1155 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1156 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1157 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1158 } | |
1159 | |
1160 void java_lang_ThreadGroup::compute_offsets() { | |
1161 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1162 | |
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1163 Klass* k = SystemDictionary::ThreadGroup_klass(); |
0 | 1164 |
132
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1165 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1166 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1167 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1168 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1169 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1170 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1171 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1172 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1173 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1174 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1175 } |
1176 | |
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1177 oop java_lang_Throwable::unassigned_stacktrace() { |
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1178 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1179 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1180 if (UseCompressedOops) { |
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1181 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1182 } else { |
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1183 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1184 } |
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1185 } |
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1186 |
0 | 1187 oop java_lang_Throwable::backtrace(oop throwable) { |
1188 return throwable->obj_field_acquire(backtrace_offset); | |
1189 } | |
1190 | |
1191 | |
1192 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1193 throwable->release_obj_field_put(backtrace_offset, value); | |
1194 } | |
1195 | |
1196 | |
1197 oop java_lang_Throwable::message(oop throwable) { | |
1198 return throwable->obj_field(detailMessage_offset); | |
1199 } | |
1200 | |
1201 | |
1202 oop java_lang_Throwable::message(Handle throwable) { | |
1203 return throwable->obj_field(detailMessage_offset); | |
1204 } | |
1205 | |
1206 | |
1207 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1208 throwable->obj_field_put(detailMessage_offset, value); | |
1209 } | |
1210 | |
1211 | |
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1212 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1213 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1214 } |
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1215 |
0 | 1216 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1217 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1218 set_stacktrace(throwable, NULL); |
0 | 1219 } |
1220 | |
1221 | |
1222 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1223 ResourceMark rm; | |
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1224 Klass* k = throwable->klass(); |
0 | 1225 assert(k != NULL, "just checking"); |
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1226 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1227 oop msg = message(throwable); |
1228 if (msg != NULL) { | |
1229 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1230 } | |
1231 } | |
1232 | |
1233 | |
1234 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1235 ResourceMark rm; | |
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1236 Klass* k = throwable->klass(); |
0 | 1237 assert(k != NULL, "just checking"); |
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1238 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1239 oop msg = message(throwable); |
1240 if (msg != NULL) { | |
1241 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1242 } | |
1243 } | |
1244 | |
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1245 // After this many redefines, the stack trace is unreliable. |
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1246 const int MAX_VERSION = USHRT_MAX; |
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1247 |
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1248 // Helper backtrace functions to store bci|version together. |
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1249 static inline int merge_bci_and_version(int bci, int version) { |
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1250 // only store u2 for version, checking for overflow. |
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1251 if (version > USHRT_MAX || version < 0) version = MAX_VERSION; |
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1252 assert((jushort)bci == bci, "bci should be short"); |
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1253 return build_int_from_shorts(version, bci); |
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1254 } |
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1255 |
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1256 static inline int bci_at(unsigned int merged) { |
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1257 return extract_high_short_from_int(merged); |
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1258 } |
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1259 static inline int version_at(unsigned int merged) { |
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1260 return extract_low_short_from_int(merged); |
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1261 } |
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1262 |
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1263 static inline bool version_matches(Method* method, int version) { |
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1264 return (method->constants()->version() == version && version < MAX_VERSION); |
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1265 } |
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1266 |
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1267 static inline int get_line_number(Method* method, int bci) { |
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1268 int line_number = 0; |
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1269 if (method->is_native()) { |
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1270 // Negative value different from -1 below, enabling Java code in |
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1271 // class java.lang.StackTraceElement to distinguish "native" from |
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1272 // "no LineNumberTable". JDK tests for -2. |
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1273 line_number = -2; |
0 | 1274 } else { |
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1275 // Returns -1 if no LineNumberTable, and otherwise actual line number |
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1276 line_number = method->line_number_from_bci(bci); |
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1277 if (line_number == -1 && ShowHiddenFrames) { |
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1278 line_number = bci + 1000000; |
0 | 1279 } |
1280 } | |
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1281 return line_number; |
0 | 1282 } |
1283 | |
1284 // This class provides a simple wrapper over the internal structure of | |
1285 // exception backtrace to insulate users of the backtrace from needing | |
1286 // to know what it looks like. | |
1287 class BacktraceBuilder: public StackObj { | |
1288 private: | |
1289 Handle _backtrace; | |
1290 objArrayOop _head; | |
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1291 typeArrayOop _methods; |
0 | 1292 typeArrayOop _bcis; |
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1293 objArrayOop _mirrors; |
0 | 1294 int _index; |
1295 No_Safepoint_Verifier _nsv; | |
1296 | |
1297 public: | |
1298 | |
1299 enum { | |
1300 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
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1301 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, |
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1302 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
0 | 1303 trace_next_offset = java_lang_Throwable::trace_next_offset, |
1304 trace_size = java_lang_Throwable::trace_size, | |
1305 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1306 }; | |
1307 | |
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1308 // get info out of chunks |
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1309 static typeArrayOop get_methods(objArrayHandle chunk) { |
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1310 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
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1311 assert(methods != NULL, "method array should be initialized in backtrace"); |
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1312 return methods; |
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1313 } |
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1314 static typeArrayOop get_bcis(objArrayHandle chunk) { |
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1315 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
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1316 assert(bcis != NULL, "bci array should be initialized in backtrace"); |
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1317 return bcis; |
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1318 } |
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1319 static objArrayOop get_mirrors(objArrayHandle chunk) { |
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1320 objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset)); |
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1321 assert(mirrors != NULL, "mirror array should be initialized in backtrace"); |
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1322 return mirrors; |
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1323 } |
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1324 |
0 | 1325 // constructor for new backtrace |
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1326 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
0 | 1327 expand(CHECK); |
1328 _backtrace = _head; | |
1329 _index = 0; | |
1330 } | |
1331 | |
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1332 BacktraceBuilder(objArrayHandle backtrace) { |
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1333 _methods = get_methods(backtrace); |
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1334 _bcis = get_bcis(backtrace); |
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1335 _mirrors = get_mirrors(backtrace); |
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1336 assert(_methods->length() == _bcis->length() && |
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1337 _methods->length() == _mirrors->length(), |
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1338 "method and source information arrays should match"); |
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1339 |
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1340 // head is the preallocated backtrace |
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1341 _backtrace = _head = backtrace(); |
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1342 _index = 0; |
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1343 } |
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1344 |
0 | 1345 void expand(TRAPS) { |
1346 objArrayHandle old_head(THREAD, _head); | |
1347 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1348 | |
1349 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1350 objArrayHandle new_head(THREAD, head); | |
1351 | |
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1352 typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
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1353 typeArrayHandle new_methods(THREAD, methods); |
0 | 1354 |
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1355 typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK); |
0 | 1356 typeArrayHandle new_bcis(THREAD, bcis); |
1357 | |
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1358 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1359 objArrayHandle new_mirrors(THREAD, mirrors); |
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1360 |
0 | 1361 if (!old_head.is_null()) { |
1362 old_head->obj_at_put(trace_next_offset, new_head()); | |
1363 } | |
1364 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1365 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
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1366 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
0 | 1367 |
1368 _head = new_head(); | |
1369 _methods = new_methods(); | |
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1370 _bcis = new_bcis(); |
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1371 _mirrors = new_mirrors(); |
0 | 1372 _index = 0; |
1373 } | |
1374 | |
1375 oop backtrace() { | |
1376 return _backtrace(); | |
1377 } | |
1378 | |
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1379 inline void push(Method* method, int bci, TRAPS) { |
4817
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1380 // Smear the -1 bci to 0 since the array only holds unsigned |
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1381 // shorts. The later line number lookup would just smear the -1 |
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1382 // to a 0 even if it could be recorded. |
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1383 if (bci == SynchronizationEntryBCI) bci = 0; |
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1384 |
0 | 1385 if (_index >= trace_chunk_size) { |
1386 methodHandle mhandle(THREAD, method); | |
1387 expand(CHECK); | |
1388 method = mhandle(); | |
1389 } | |
1390 | |
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1391 _methods->short_at_put(_index, method->method_idnum()); |
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1392 _bcis->int_at_put(_index, merge_bci_and_version(bci, method->constants()->version())); |
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1393 |
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1394 // We need to save the mirrors in the backtrace to keep the class |
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1395 // from being unloaded while we still have this stack trace. |
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1396 assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror"); |
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1397 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
0 | 1398 _index++; |
1399 } | |
1400 | |
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1401 }; |
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1402 |
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1403 // Print stack trace element to resource allocated buffer |
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1404 char* java_lang_Throwable::print_stack_element_to_buffer(Handle mirror, |
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1405 int method_id, int version, int bci) { |
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1406 |
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1407 // Get strings and string lengths |
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1408 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1409 const char* klass_name = holder->external_name(); |
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1410 int buf_len = (int)strlen(klass_name); |
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1411 |
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1412 // The method id may point to an obsolete method, can't get more stack information |
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1413 Method* method = holder->method_with_idnum(method_id); |
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1414 if (method == NULL) { |
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1415 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1416 // This is what the java code prints in this case - added Redefined |
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1417 sprintf(buf, "\tat %s.null (Redefined)", klass_name); |
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1418 return buf; |
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1419 } |
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1420 |
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1421 char* method_name = method->name()->as_C_string(); |
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1422 buf_len += (int)strlen(method_name); |
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1423 |
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1424 char* source_file_name = NULL; |
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1425 if (version_matches(method, version)) { |
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1426 Symbol* source = holder->source_file_name(); |
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1427 if (source != NULL) { |
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1428 source_file_name = source->as_C_string(); |
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1429 buf_len += (int)strlen(source_file_name); |
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1430 } |
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1431 } |
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1432 |
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1433 // Allocate temporary buffer with extra space for formatting and line number |
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1434 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1435 |
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1436 // Print stack trace line in buffer |
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1437 sprintf(buf, "\tat %s.%s", klass_name, method_name); |
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1438 |
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1439 if (!version_matches(method, version)) { |
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1440 strcat(buf, "(Redefined)"); |
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1441 } else { |
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1442 int line_number = get_line_number(method, bci); |
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1443 if (line_number == -2) { |
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1444 strcat(buf, "(Native Method)"); |
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1445 } else { |
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1446 if (source_file_name != NULL && (line_number != -1)) { |
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1447 // Sourcename and linenumber |
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1448 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); |
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1449 } else if (source_file_name != NULL) { |
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1450 // Just sourcename |
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1451 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); |
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1452 } else { |
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1453 // Neither sourcename nor linenumber |
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1454 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); |
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1455 } |
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1456 nmethod* nm = method->code(); |
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1457 if (WizardMode && nm != NULL) { |
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1458 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
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1459 } |
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1460 } |
0 | 1461 } |
1462 | |
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1463 return buf; |
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1464 } |
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1465 |
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1466 void java_lang_Throwable::print_stack_element(outputStream *st, Handle mirror, |
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1467 int method_id, int version, int bci) { |
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1468 ResourceMark rm; |
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1469 char* buf = print_stack_element_to_buffer(mirror, method_id, version, bci); |
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1470 st->print_cr("%s", buf); |
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1471 } |
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1472 |
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1473 void java_lang_Throwable::print_stack_element(outputStream *st, methodHandle method, int bci) { |
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1474 Handle mirror = method->method_holder()->java_mirror(); |
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1475 int method_id = method->method_idnum(); |
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1476 int version = method->constants()->version(); |
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1477 print_stack_element(st, mirror, method_id, version, bci); |
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1478 } |
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1479 |
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1480 const char* java_lang_Throwable::no_stack_trace_message() { |
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1481 return "\t<<no stack trace available>>"; |
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1482 } |
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1483 |
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1484 |
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1485 // Currently used only for exceptions occurring during startup |
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1486 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { |
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1487 Thread *THREAD = Thread::current(); |
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1488 Handle h_throwable(THREAD, throwable); |
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1489 while (h_throwable.not_null()) { |
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1490 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); |
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1491 if (result.is_null()) { |
18041 | 1492 st->print_raw_cr(no_stack_trace_message()); |
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1493 return; |
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|
1494 } |
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1495 |
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1496 while (result.not_null()) { |
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1497 |
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1498 // Get method id, bci, version and mirror from chunk |
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1499 typeArrayHandle methods (THREAD, BacktraceBuilder::get_methods(result)); |
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1500 typeArrayHandle bcis (THREAD, BacktraceBuilder::get_bcis(result)); |
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1501 objArrayHandle mirrors (THREAD, BacktraceBuilder::get_mirrors(result)); |
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1502 |
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1503 int length = methods()->length(); |
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1504 for (int index = 0; index < length; index++) { |
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1505 Handle mirror(THREAD, mirrors->obj_at(index)); |
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1506 // NULL mirror means end of stack trace |
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1507 if (mirror.is_null()) goto handle_cause; |
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1508 int method = methods->short_at(index); |
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1509 int version = version_at(bcis->int_at(index)); |
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1510 int bci = bci_at(bcis->int_at(index)); |
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1511 print_stack_element(st, mirror, method, version, bci); |
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1512 } |
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1513 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); |
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1514 } |
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1515 handle_cause: |
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1516 { |
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1517 EXCEPTION_MARK; |
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1518 JavaValue cause(T_OBJECT); |
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1519 JavaCalls::call_virtual(&cause, |
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1520 h_throwable, |
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1521 KlassHandle(THREAD, h_throwable->klass()), |
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1522 vmSymbols::getCause_name(), |
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1523 vmSymbols::void_throwable_signature(), |
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1524 THREAD); |
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1525 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. |
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1526 if (HAS_PENDING_EXCEPTION) { |
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1527 CLEAR_PENDING_EXCEPTION; |
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1528 h_throwable = Handle(); |
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1529 } else { |
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1530 h_throwable = Handle(THREAD, (oop) cause.get_jobject()); |
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1531 if (h_throwable.not_null()) { |
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1532 st->print("Caused by: "); |
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1533 print(h_throwable, st); |
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|
1534 st->cr(); |
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|
1535 } |
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|
1536 } |
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1537 } |
0 | 1538 } |
7624
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|
1539 } |
0 | 1540 |
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1541 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1542 if (!StackTraceInThrowable) return; |
1543 ResourceMark rm(THREAD); | |
1544 | |
1545 // Start out by clearing the backtrace for this object, in case the VM | |
1546 // runs out of memory while allocating the stack trace | |
1547 set_backtrace(throwable(), NULL); | |
1548 if (JDK_Version::is_gte_jdk14x_version()) { | |
1549 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1550 // refilling occurs | |
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|
1551 // This is unnecessary in 1.7+ but harmless |
0 | 1552 clear_stacktrace(throwable()); |
1553 } | |
1554 | |
1555 int max_depth = MaxJavaStackTraceDepth; | |
1556 JavaThread* thread = (JavaThread*)THREAD; | |
1557 BacktraceBuilder bt(CHECK); | |
1558 | |
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1559 // If there is no Java frame just return the method that was being called |
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1560 // with bci 0 |
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1561 if (!thread->has_last_Java_frame()) { |
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1562 if (max_depth >= 1 && method() != NULL) { |
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1563 bt.push(method(), 0, CHECK); |
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1564 set_backtrace(throwable(), bt.backtrace()); |
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|
1565 } |
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|
1566 return; |
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|
1567 } |
14768
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Doug Simon <doug.simon@oracle.com>
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|
1568 |
16242
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Gilles Duboscq <duboscq@ssw.jku.at>
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1569 #ifdef GRAAL |
14768
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Doug Simon <doug.simon@oracle.com>
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|
1570 // Check for gpu exception to add as top frame |
3e9a960f0da1
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1571 Method* gpu_method = thread->get_gpu_exception_method(); |
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1572 if (gpu_method != NULL) { |
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1573 jint gpu_bci = thread->get_gpu_exception_bci(); |
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1574 bt.push(gpu_method, gpu_bci, CHECK); |
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|
1575 // Clear the gpu exception state, it is not used after here |
3e9a960f0da1
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|
1576 thread->set_gpu_exception_bci(0); |
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|
1577 thread->set_gpu_exception_method(NULL); |
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1578 } |
16242
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|
1579 #endif |
3272
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1580 |
0 | 1581 // Instead of using vframe directly, this version of fill_in_stack_trace |
1582 // basically handles everything by hand. This significantly improved the | |
1583 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1584 // See bug 6333838 for more details. | |
1585 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1586 // trace as utilizing vframe. | |
1587 #ifdef ASSERT | |
1588 vframeStream st(thread); | |
1589 methodHandle st_method(THREAD, st.method()); | |
1590 #endif | |
1591 int total_count = 0; | |
1592 RegisterMap map(thread, false); | |
1593 int decode_offset = 0; | |
1594 nmethod* nm = NULL; | |
1595 bool skip_fillInStackTrace_check = false; | |
1596 bool skip_throwableInit_check = false; | |
6267
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7187290: nightly failures after JSR 292 lazy method handle update
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|
1597 bool skip_hidden = !ShowHiddenFrames; |
0 | 1598 |
1599 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
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1600 Method* method = NULL; |
0 | 1601 int bci = 0; |
1602 | |
1603 // Compiled java method case. | |
1604 if (decode_offset != 0) { | |
1605 DebugInfoReadStream stream(nm, decode_offset); | |
1606 decode_offset = stream.read_int(); | |
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1607 method = (Method*)nm->metadata_at(stream.read_int()); |
931
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1608 bci = stream.read_bci(); |
0 | 1609 } else { |
1610 if (fr.is_first_frame()) break; | |
1611 address pc = fr.pc(); | |
1612 if (fr.is_interpreted_frame()) { | |
1613 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1614 method = fr.interpreter_frame_method(); | |
1615 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1616 fr = fr.sender(&map); | |
1617 } else { | |
1618 CodeBlob* cb = fr.cb(); | |
1619 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1620 // but non nmethod | |
1621 fr = fr.sender(&map); | |
1622 if (cb == NULL || !cb->is_nmethod()) { | |
1623 continue; | |
1624 } | |
1625 nm = (nmethod*)cb; | |
1626 if (nm->method()->is_native()) { | |
1627 method = nm->method(); | |
1628 bci = 0; | |
1629 } else { | |
1630 PcDesc* pd = nm->pc_desc_at(pc); | |
1631 decode_offset = pd->scope_decode_offset(); | |
1632 // if decode_offset is not equal to 0, it will execute the | |
1633 // "compiled java method case" at the beginning of the loop. | |
1634 continue; | |
1635 } | |
1636 } | |
1637 } | |
1638 #ifdef ASSERT | |
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1639 assert(st_method() == method && st.bci() == bci, |
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|
1640 "Wrong stack trace"); |
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|
1641 st.next(); |
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1642 // vframeStream::method isn't GC-safe so store off a copy |
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1643 // of the Method* in case we GC. |
2476
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|
1644 if (!st.at_end()) { |
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|
1645 st_method = st.method(); |
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|
1646 } |
0 | 1647 #endif |
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|
1648 |
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1649 // the format of the stacktrace will be: |
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|
1650 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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|
1651 // - 0 or more <init> methods for the exception class (skipped) |
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|
1652 // - rest of the stack |
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|
1653 |
0 | 1654 if (!skip_fillInStackTrace_check) { |
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1655 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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|
1656 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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|
1657 throwable->is_a(method->method_holder())) { |
0 | 1658 continue; |
1659 } | |
2476
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|
1660 else { |
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|
1661 skip_fillInStackTrace_check = true; // gone past them all |
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|
1662 } |
0 | 1663 } |
1664 if (!skip_throwableInit_check) { | |
2476
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|
1665 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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|
1666 |
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|
1667 // skip <init> methods of the exception class and superclasses |
6a615eae2f34
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|
1668 // This is simlar to classic VM. |
0 | 1669 if (method->name() == vmSymbols::object_initializer_name() && |
1670 throwable->is_a(method->method_holder())) { | |
1671 continue; | |
1672 } else { | |
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1673 // there are none or we've seen them all - either way stop checking |
0 | 1674 skip_throwableInit_check = true; |
1675 } | |
1676 } | |
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1677 if (method->is_hidden()) { |
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1678 if (skip_hidden) continue; |
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1679 } |
0 | 1680 bt.push(method, bci, CHECK); |
1681 total_count++; | |
1682 } | |
1683 | |
1684 // Put completed stack trace into throwable object | |
1685 set_backtrace(throwable(), bt.backtrace()); | |
1686 } | |
1687 | |
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1688 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1689 // No-op if stack trace is disabled |
1690 if (!StackTraceInThrowable) { | |
1691 return; | |
1692 } | |
1693 | |
1694 // Disable stack traces for some preallocated out of memory errors | |
1695 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1696 return; | |
1697 } | |
1698 | |
1699 PRESERVE_EXCEPTION_MARK; | |
1700 | |
1701 JavaThread* thread = JavaThread::active(); | |
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1702 fill_in_stack_trace(throwable, method, thread); |
0 | 1703 // ignore exceptions thrown during stack trace filling |
1704 CLEAR_PENDING_EXCEPTION; | |
1705 } | |
1706 | |
1707 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1708 // Allocate stack trace - backtrace is created but not filled in | |
1709 | |
1710 // No-op if stack trace is disabled | |
1711 if (!StackTraceInThrowable) return; | |
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1712 BacktraceBuilder bt(CHECK); // creates a backtrace |
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1713 set_backtrace(throwable(), bt.backtrace()); |
0 | 1714 } |
1715 | |
1716 | |
1717 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1718 // Fill in stack trace into preallocated backtrace (no GC) | |
1719 | |
1720 // No-op if stack trace is disabled | |
1721 if (!StackTraceInThrowable) return; | |
1722 | |
1142 | 1723 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1724 |
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1725 JavaThread* THREAD = JavaThread::current(); |
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1726 |
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1727 objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable())); |
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1728 assert(backtrace.not_null(), "backtrace should have been preallocated"); |
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1729 |
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1730 ResourceMark rm(THREAD); |
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1731 vframeStream st(THREAD); |
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1732 |
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1733 BacktraceBuilder bt(backtrace); |
0 | 1734 |
1735 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1736 // methods as preallocated errors aren't created by "java" code. | |
1737 | |
1738 // fill in as much stack trace as possible | |
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1739 typeArrayOop methods = BacktraceBuilder::get_methods(backtrace); |
0 | 1740 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); |
1741 int chunk_count = 0; | |
1742 | |
1743 for (;!st.at_end(); st.next()) { | |
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1744 bt.push(st.method(), st.bci(), CHECK); |
0 | 1745 chunk_count++; |
1746 | |
1747 // Bail-out for deep stacks | |
1748 if (chunk_count >= max_chunks) break; | |
1749 } | |
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1750 |
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1751 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1752 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1753 // can be removed in a JDK using this JVM version |
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1754 if (JDK_Version::is_gte_jdk17x_version()) { |
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1755 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1756 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1757 } |
0 | 1758 } |
1759 | |
1760 | |
1761 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1762 if (throwable == NULL) { | |
1763 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1764 } | |
1765 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1766 int depth = 0; | |
1767 if (chunk != NULL) { | |
1768 // Iterate over chunks and count full ones | |
1769 while (true) { | |
1770 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1771 if (next == NULL) break; | |
1772 depth += trace_chunk_size; | |
1773 chunk = next; | |
1774 } | |
1775 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
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1776 // Count element in remaining partial chunk. NULL value for mirror |
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1777 // marks the end of the stack trace elements that are saved. |
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1778 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1779 assert(mirrors != NULL, "sanity check"); |
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1780 for (int i = 0; i < mirrors->length(); i++) { |
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1781 if (mirrors->obj_at(i) == NULL) break; |
0 | 1782 depth++; |
1783 } | |
1784 } | |
1785 return depth; | |
1786 } | |
1787 | |
1788 | |
1789 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1790 if (throwable == NULL) { | |
1791 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1792 } | |
1793 if (index < 0) { | |
1794 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1795 } | |
1796 // Compute how many chunks to skip and index into actual chunk | |
1797 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1798 int skip_chunks = index / trace_chunk_size; | |
1799 int chunk_index = index % trace_chunk_size; | |
1800 while (chunk != NULL && skip_chunks > 0) { | |
1801 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1802 skip_chunks--; | |
1803 } | |
1804 if (chunk == NULL) { | |
1805 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1806 } | |
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1807 // Get method id, bci, version and mirror from chunk |
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1808 typeArrayOop methods = BacktraceBuilder::get_methods(chunk); |
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1809 typeArrayOop bcis = BacktraceBuilder::get_bcis(chunk); |
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1810 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1811 |
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1812 assert(methods != NULL && bcis != NULL && mirrors != NULL, "sanity check"); |
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1813 |
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1814 int method = methods->short_at(chunk_index); |
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1815 int version = version_at(bcis->int_at(chunk_index)); |
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1816 int bci = bci_at(bcis->int_at(chunk_index)); |
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1817 Handle mirror(THREAD, mirrors->obj_at(chunk_index)); |
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1818 |
0 | 1819 // Chunk can be partial full |
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1820 if (mirror.is_null()) { |
0 | 1821 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); |
1822 } | |
1823 | |
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1824 oop element = java_lang_StackTraceElement::create(mirror, method, version, bci, CHECK_0); |
0 | 1825 return element; |
1826 } | |
1827 | |
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1828 oop java_lang_StackTraceElement::create(Handle mirror, int method_id, |
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1829 int version, int bci, TRAPS) { |
0 | 1830 // Allocate java.lang.StackTraceElement instance |
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1831 Klass* k = SystemDictionary::StackTraceElement_klass(); |
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1832 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1833 instanceKlassHandle ik (THREAD, k); |
1834 if (ik->should_be_initialized()) { | |
1835 ik->initialize(CHECK_0); | |
1836 } | |
1837 | |
1838 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1839 // Fill in class name | |
1840 ResourceMark rm(THREAD); | |
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1841 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1842 const char* str = holder->external_name(); |
0 | 1843 oop classname = StringTable::intern((char*) str, CHECK_0); |
1844 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
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1845 |
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1846 Method* method = holder->method_with_idnum(method_id); |
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1847 // Method on stack may be obsolete because it was redefined so cannot be |
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1848 // found by idnum. |
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1849 if (method == NULL) { |
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1850 // leave name and fileName null |
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1851 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
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1852 return element(); |
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1853 } |
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1854 |
0 | 1855 // Fill in method name |
1856 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1857 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
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1858 |
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1859 if (!version_matches(method, version)) { |
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1860 // The method was redefined, accurate line number information isn't available |
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1861 java_lang_StackTraceElement::set_fileName(element(), NULL); |
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1862 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
0 | 1863 } else { |
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1864 // Fill in source file name and line number. |
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1865 Symbol* source = holder->source_file_name(); |
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1866 if (ShowHiddenFrames && source == NULL) |
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1867 source = vmSymbols::unknown_class_name(); |
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1868 oop filename = StringTable::intern(source, CHECK_0); |
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1869 java_lang_StackTraceElement::set_fileName(element(), filename); |
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1870 |
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1871 int line_number = get_line_number(method, bci); |
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1872 java_lang_StackTraceElement::set_lineNumber(element(), line_number); |
0 | 1873 } |
1874 return element(); | |
1875 } | |
1876 | |
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1877 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { |
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1878 Handle mirror (THREAD, method->method_holder()->java_mirror()); |
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1879 int method_id = method->method_idnum(); |
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1880 return create(mirror, method_id, method->constants()->version(), bci, THREAD); |
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1881 } |
0 | 1882 |
1883 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
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1884 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1885 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1886 } |
1887 | |
1888 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1889 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1890 return (jboolean) reflect->bool_field(override_offset); | |
1891 } | |
1892 | |
1893 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1894 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1895 reflect->bool_field_put(override_offset, (int) value); | |
1896 } | |
1897 | |
1898 void java_lang_reflect_Method::compute_offsets() { | |
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1899 Klass* k = SystemDictionary::reflect_Method_klass(); |
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1900 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1901 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1902 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1903 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1904 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1905 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1906 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1907 // The generic signature and annotations fields are only present in 1.5 |
1908 signature_offset = -1; | |
1909 annotations_offset = -1; | |
1910 parameter_annotations_offset = -1; | |
1911 annotation_default_offset = -1; | |
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1912 type_annotations_offset = -1; |
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1913 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1914 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1915 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1916 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
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1917 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1918 } |
1919 | |
1920 Handle java_lang_reflect_Method::create(TRAPS) { | |
1921 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1922 Klass* klass = SystemDictionary::reflect_Method_klass(); |
0 | 1923 // This class is eagerly initialized during VM initialization, since we keep a refence |
1924 // to one of the methods | |
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1925 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1926 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
0 | 1927 } |
1928 | |
1929 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1931 return reflect->obj_field(clazz_offset); | |
1932 } | |
1933 | |
1934 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1936 reflect->obj_field_put(clazz_offset, value); | |
1937 } | |
1938 | |
1939 int java_lang_reflect_Method::slot(oop reflect) { | |
1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1941 return reflect->int_field(slot_offset); | |
1942 } | |
1943 | |
1944 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1945 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1946 reflect->int_field_put(slot_offset, value); | |
1947 } | |
1948 | |
1949 oop java_lang_reflect_Method::name(oop method) { | |
1950 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1951 return method->obj_field(name_offset); | |
1952 } | |
1953 | |
1954 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1956 method->obj_field_put(name_offset, value); | |
1957 } | |
1958 | |
1959 oop java_lang_reflect_Method::return_type(oop method) { | |
1960 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1961 return method->obj_field(returnType_offset); | |
1962 } | |
1963 | |
1964 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1966 method->obj_field_put(returnType_offset, value); | |
1967 } | |
1968 | |
1969 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1970 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1971 return method->obj_field(parameterTypes_offset); | |
1972 } | |
1973 | |
1974 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1975 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1976 method->obj_field_put(parameterTypes_offset, value); | |
1977 } | |
1978 | |
1979 oop java_lang_reflect_Method::exception_types(oop method) { | |
1980 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1981 return method->obj_field(exceptionTypes_offset); | |
1982 } | |
1983 | |
1984 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1985 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1986 method->obj_field_put(exceptionTypes_offset, value); | |
1987 } | |
1988 | |
1989 int java_lang_reflect_Method::modifiers(oop method) { | |
1990 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1991 return method->int_field(modifiers_offset); | |
1992 } | |
1993 | |
1994 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1995 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1996 method->int_field_put(modifiers_offset, value); | |
1997 } | |
1998 | |
1999 bool java_lang_reflect_Method::has_signature_field() { | |
2000 return (signature_offset >= 0); | |
2001 } | |
2002 | |
2003 oop java_lang_reflect_Method::signature(oop method) { | |
2004 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2005 assert(has_signature_field(), "signature field must be present"); | |
2006 return method->obj_field(signature_offset); | |
2007 } | |
2008 | |
2009 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
2010 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2011 assert(has_signature_field(), "signature field must be present"); | |
2012 method->obj_field_put(signature_offset, value); | |
2013 } | |
2014 | |
2015 bool java_lang_reflect_Method::has_annotations_field() { | |
2016 return (annotations_offset >= 0); | |
2017 } | |
2018 | |
2019 oop java_lang_reflect_Method::annotations(oop method) { | |
2020 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2021 assert(has_annotations_field(), "annotations field must be present"); | |
2022 return method->obj_field(annotations_offset); | |
2023 } | |
2024 | |
2025 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
2026 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2027 assert(has_annotations_field(), "annotations field must be present"); | |
2028 method->obj_field_put(annotations_offset, value); | |
2029 } | |
2030 | |
2031 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
2032 return (parameter_annotations_offset >= 0); | |
2033 } | |
2034 | |
2035 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
2036 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2037 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2038 return method->obj_field(parameter_annotations_offset); | |
2039 } | |
2040 | |
2041 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
2042 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2043 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2044 method->obj_field_put(parameter_annotations_offset, value); | |
2045 } | |
2046 | |
2047 bool java_lang_reflect_Method::has_annotation_default_field() { | |
2048 return (annotation_default_offset >= 0); | |
2049 } | |
2050 | |
2051 oop java_lang_reflect_Method::annotation_default(oop method) { | |
2052 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2053 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2054 return method->obj_field(annotation_default_offset); | |
2055 } | |
2056 | |
2057 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
2058 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2059 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2060 method->obj_field_put(annotation_default_offset, value); | |
2061 } | |
2062 | |
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2063 bool java_lang_reflect_Method::has_type_annotations_field() { |
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2064 return (type_annotations_offset >= 0); |
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2065 } |
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2066 |
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2067 oop java_lang_reflect_Method::type_annotations(oop method) { |
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2068 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2069 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2070 return method->obj_field(type_annotations_offset); |
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2071 } |
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2072 |
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2073 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { |
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2074 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2075 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2076 method->obj_field_put(type_annotations_offset, value); |
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2077 } |
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2078 |
0 | 2079 void java_lang_reflect_Constructor::compute_offsets() { |
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2080 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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2081 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2082 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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2083 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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2084 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2085 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2086 // The generic signature and annotations fields are only present in 1.5 |
2087 signature_offset = -1; | |
2088 annotations_offset = -1; | |
2089 parameter_annotations_offset = -1; | |
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2090 type_annotations_offset = -1; |
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2091 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2092 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2093 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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2094 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2095 } |
2096 | |
2097 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
2098 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2099 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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2100 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2101 instanceKlassHandle klass (THREAD, k); |
2102 // Ensure it is initialized | |
2103 klass->initialize(CHECK_NH); | |
2104 return klass->allocate_instance_handle(CHECK_NH); | |
2105 } | |
2106 | |
2107 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
2108 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2109 return reflect->obj_field(clazz_offset); | |
2110 } | |
2111 | |
2112 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
2113 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2114 reflect->obj_field_put(clazz_offset, value); | |
2115 } | |
2116 | |
2117 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
2118 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2119 return constructor->obj_field(parameterTypes_offset); | |
2120 } | |
2121 | |
2122 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
2123 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2124 constructor->obj_field_put(parameterTypes_offset, value); | |
2125 } | |
2126 | |
2127 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
2128 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2129 return constructor->obj_field(exceptionTypes_offset); | |
2130 } | |
2131 | |
2132 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
2133 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2134 constructor->obj_field_put(exceptionTypes_offset, value); | |
2135 } | |
2136 | |
2137 int java_lang_reflect_Constructor::slot(oop reflect) { | |
2138 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2139 return reflect->int_field(slot_offset); | |
2140 } | |
2141 | |
2142 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
2143 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2144 reflect->int_field_put(slot_offset, value); | |
2145 } | |
2146 | |
2147 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
2148 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2149 return constructor->int_field(modifiers_offset); | |
2150 } | |
2151 | |
2152 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
2153 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2154 constructor->int_field_put(modifiers_offset, value); | |
2155 } | |
2156 | |
2157 bool java_lang_reflect_Constructor::has_signature_field() { | |
2158 return (signature_offset >= 0); | |
2159 } | |
2160 | |
2161 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
2162 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2163 assert(has_signature_field(), "signature field must be present"); | |
2164 return constructor->obj_field(signature_offset); | |
2165 } | |
2166 | |
2167 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
2168 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2169 assert(has_signature_field(), "signature field must be present"); | |
2170 constructor->obj_field_put(signature_offset, value); | |
2171 } | |
2172 | |
2173 bool java_lang_reflect_Constructor::has_annotations_field() { | |
2174 return (annotations_offset >= 0); | |
2175 } | |
2176 | |
2177 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
2178 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2179 assert(has_annotations_field(), "annotations field must be present"); | |
2180 return constructor->obj_field(annotations_offset); | |
2181 } | |
2182 | |
2183 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
2184 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2185 assert(has_annotations_field(), "annotations field must be present"); | |
2186 constructor->obj_field_put(annotations_offset, value); | |
2187 } | |
2188 | |
2189 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
2190 return (parameter_annotations_offset >= 0); | |
2191 } | |
2192 | |
2193 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
2194 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2195 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2196 return method->obj_field(parameter_annotations_offset); | |
2197 } | |
2198 | |
2199 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
2200 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2201 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2202 method->obj_field_put(parameter_annotations_offset, value); | |
2203 } | |
2204 | |
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2205 bool java_lang_reflect_Constructor::has_type_annotations_field() { |
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2206 return (type_annotations_offset >= 0); |
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2207 } |
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2208 |
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2209 oop java_lang_reflect_Constructor::type_annotations(oop constructor) { |
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2210 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2211 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2212 return constructor->obj_field(type_annotations_offset); |
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2213 } |
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2214 |
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2215 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { |
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2216 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2217 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2218 constructor->obj_field_put(type_annotations_offset, value); |
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2219 } |
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2220 |
0 | 2221 void java_lang_reflect_Field::compute_offsets() { |
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2222 Klass* k = SystemDictionary::reflect_Field_klass(); |
132
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2223 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2224 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2225 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2226 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2227 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2228 // The generic signature and annotations fields are only present in 1.5 |
2229 signature_offset = -1; | |
2230 annotations_offset = -1; | |
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2231 type_annotations_offset = -1; |
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2232 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2233 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2234 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2235 } |
2236 | |
2237 Handle java_lang_reflect_Field::create(TRAPS) { | |
2238 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2239 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2240 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2241 instanceKlassHandle klass (THREAD, k); |
2242 // Ensure it is initialized | |
2243 klass->initialize(CHECK_NH); | |
2244 return klass->allocate_instance_handle(CHECK_NH); | |
2245 } | |
2246 | |
2247 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2248 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2249 return reflect->obj_field(clazz_offset); | |
2250 } | |
2251 | |
2252 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2253 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2254 reflect->obj_field_put(clazz_offset, value); | |
2255 } | |
2256 | |
2257 oop java_lang_reflect_Field::name(oop field) { | |
2258 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2259 return field->obj_field(name_offset); | |
2260 } | |
2261 | |
2262 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2263 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2264 field->obj_field_put(name_offset, value); | |
2265 } | |
2266 | |
2267 oop java_lang_reflect_Field::type(oop field) { | |
2268 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2269 return field->obj_field(type_offset); | |
2270 } | |
2271 | |
2272 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2273 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2274 field->obj_field_put(type_offset, value); | |
2275 } | |
2276 | |
2277 int java_lang_reflect_Field::slot(oop reflect) { | |
2278 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2279 return reflect->int_field(slot_offset); | |
2280 } | |
2281 | |
2282 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2283 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2284 reflect->int_field_put(slot_offset, value); | |
2285 } | |
2286 | |
2287 int java_lang_reflect_Field::modifiers(oop field) { | |
2288 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2289 return field->int_field(modifiers_offset); | |
2290 } | |
2291 | |
2292 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2293 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2294 field->int_field_put(modifiers_offset, value); | |
2295 } | |
2296 | |
2297 bool java_lang_reflect_Field::has_signature_field() { | |
2298 return (signature_offset >= 0); | |
2299 } | |
2300 | |
2301 oop java_lang_reflect_Field::signature(oop field) { | |
2302 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2303 assert(has_signature_field(), "signature field must be present"); | |
2304 return field->obj_field(signature_offset); | |
2305 } | |
2306 | |
2307 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2308 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2309 assert(has_signature_field(), "signature field must be present"); | |
2310 field->obj_field_put(signature_offset, value); | |
2311 } | |
2312 | |
2313 bool java_lang_reflect_Field::has_annotations_field() { | |
2314 return (annotations_offset >= 0); | |
2315 } | |
2316 | |
2317 oop java_lang_reflect_Field::annotations(oop field) { | |
2318 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2319 assert(has_annotations_field(), "annotations field must be present"); | |
2320 return field->obj_field(annotations_offset); | |
2321 } | |
2322 | |
2323 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2324 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2325 assert(has_annotations_field(), "annotations field must be present"); | |
2326 field->obj_field_put(annotations_offset, value); | |
2327 } | |
2328 | |
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2329 bool java_lang_reflect_Field::has_type_annotations_field() { |
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2330 return (type_annotations_offset >= 0); |
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2331 } |
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2332 |
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2333 oop java_lang_reflect_Field::type_annotations(oop field) { |
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2334 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2335 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2336 return field->obj_field(type_annotations_offset); |
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2337 } |
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2338 |
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2339 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { |
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2340 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2341 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2342 field->obj_field_put(type_annotations_offset, value); |
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2343 } |
0 | 2344 |
2345 void sun_reflect_ConstantPool::compute_offsets() { | |
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2346 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2347 // This null test can be removed post beta |
2348 if (k != NULL) { | |
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2349 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
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2350 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
0 | 2351 } |
2352 } | |
2353 | |
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2354 void java_lang_reflect_Parameter::compute_offsets() { |
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2355 Klass* k = SystemDictionary::reflect_Parameter_klass(); |
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2356 if(NULL != k) { |
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2357 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2358 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
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2359 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); |
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2360 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); |
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2361 } |
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2362 } |
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2363 |
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2364 Handle java_lang_reflect_Parameter::create(TRAPS) { |
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2365 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2366 Symbol* name = vmSymbols::java_lang_reflect_Parameter(); |
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2367 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
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2368 instanceKlassHandle klass (THREAD, k); |
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2369 // Ensure it is initialized |
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2370 klass->initialize(CHECK_NH); |
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2371 return klass->allocate_instance_handle(CHECK_NH); |
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2372 } |
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2373 |
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2374 oop java_lang_reflect_Parameter::name(oop param) { |
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2375 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2376 return param->obj_field(name_offset); |
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2377 } |
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2378 |
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2379 void java_lang_reflect_Parameter::set_name(oop param, oop value) { |
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2380 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2381 param->obj_field_put(name_offset, value); |
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2382 } |
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2383 |
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2384 int java_lang_reflect_Parameter::modifiers(oop param) { |
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2385 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2386 return param->int_field(modifiers_offset); |
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2387 } |
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2388 |
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2389 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { |
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2390 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2391 param->int_field_put(modifiers_offset, value); |
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2392 } |
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2393 |
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2394 int java_lang_reflect_Parameter::index(oop param) { |
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2395 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2396 return param->int_field(index_offset); |
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2397 } |
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2398 |
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2399 void java_lang_reflect_Parameter::set_index(oop param, int value) { |
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2400 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2401 param->int_field_put(index_offset, value); |
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2402 } |
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2403 |
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2404 oop java_lang_reflect_Parameter::executable(oop param) { |
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2405 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2406 return param->obj_field(executable_offset); |
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2407 } |
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2408 |
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2409 void java_lang_reflect_Parameter::set_executable(oop param, oop value) { |
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2410 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2411 param->obj_field_put(executable_offset, value); |
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2412 } |
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2413 |
0 | 2414 |
2415 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2416 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2417 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2418 instanceKlassHandle klass (THREAD, k); |
2419 // Ensure it is initialized | |
2420 klass->initialize(CHECK_NH); | |
2421 return klass->allocate_instance_handle(CHECK_NH); | |
2422 } | |
2423 | |
2424 | |
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|
2425 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
0 | 2426 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
6725
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2427 oop mirror = value->pool_holder()->java_mirror(); |
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2428 // Save the mirror to get back the constant pool. |
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2429 reflect->obj_field_put(_oop_offset, mirror); |
0 | 2430 } |
2431 | |
6725
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2432 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
0 | 2433 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
6725
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2434 |
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2435 oop mirror = reflect->obj_field(_oop_offset); |
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2436 Klass* k = java_lang_Class::as_Klass(mirror); |
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2437 assert(k->oop_is_instance(), "Must be"); |
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2438 |
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2439 // Get the constant pool back from the klass. Since class redefinition |
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2440 // merges the new constant pool into the old, this is essentially the |
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2441 // same constant pool as the original. If constant pool merging is |
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2442 // no longer done in the future, this will have to change to save |
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2443 // the original. |
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2444 return InstanceKlass::cast(k)->constants(); |
0 | 2445 } |
2446 | |
2447 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
6725
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2448 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2449 // This null test can be removed post beta |
2450 if (k != NULL) { | |
132
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2451 compute_offset(_base_offset, k, |
0 | 2452 vmSymbols::base_name(), vmSymbols::object_signature()); |
2453 } | |
2454 } | |
2455 | |
132
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2456 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
6725
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2457 Klass* k = SystemDictionary::box_klass(type); |
132
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2458 if (k == NULL) return NULL; |
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|
2459 instanceKlassHandle h (THREAD, k); |
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2460 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2461 return h->allocate_instance(THREAD); |
0 | 2462 } |
2463 | |
2464 | |
2465 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2466 oop box = initialize_and_allocate(type, CHECK_0); |
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2467 if (box == NULL) return NULL; |
0 | 2468 switch (type) { |
2469 case T_BOOLEAN: | |
2470 box->bool_field_put(value_offset, value->z); | |
2471 break; | |
2472 case T_CHAR: | |
2473 box->char_field_put(value_offset, value->c); | |
2474 break; | |
2475 case T_FLOAT: | |
2476 box->float_field_put(value_offset, value->f); | |
2477 break; | |
2478 case T_DOUBLE: | |
165
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2479 box->double_field_put(long_value_offset, value->d); |
0 | 2480 break; |
2481 case T_BYTE: | |
2482 box->byte_field_put(value_offset, value->b); | |
2483 break; | |
2484 case T_SHORT: | |
2485 box->short_field_put(value_offset, value->s); | |
2486 break; | |
2487 case T_INT: | |
2488 box->int_field_put(value_offset, value->i); | |
2489 break; | |
2490 case T_LONG: | |
165
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diff
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|
2491 box->long_field_put(long_value_offset, value->j); |
0 | 2492 break; |
2493 default: | |
2494 return NULL; | |
2495 } | |
2496 return box; | |
2497 } | |
2498 | |
2499 | |
132
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|
2500 BasicType java_lang_boxing_object::basic_type(oop box) { |
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|
2501 if (box == NULL) return T_ILLEGAL; |
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|
2502 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2503 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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|
2504 return T_ILLEGAL; |
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|
2505 return type; |
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|
2506 } |
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|
2507 |
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2508 |
0 | 2509 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2510 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2511 switch (type) { |
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|
2512 case T_BOOLEAN: |
0 | 2513 value->z = box->bool_field(value_offset); |
132
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|
2514 break; |
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|
2515 case T_CHAR: |
0 | 2516 value->c = box->char_field(value_offset); |
132
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|
2517 break; |
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|
2518 case T_FLOAT: |
0 | 2519 value->f = box->float_field(value_offset); |
132
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|
2520 break; |
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|
2521 case T_DOUBLE: |
165
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2522 value->d = box->double_field(long_value_offset); |
132
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|
2523 break; |
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|
2524 case T_BYTE: |
0 | 2525 value->b = box->byte_field(value_offset); |
132
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|
2526 break; |
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|
2527 case T_SHORT: |
0 | 2528 value->s = box->short_field(value_offset); |
132
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|
2529 break; |
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|
2530 case T_INT: |
0 | 2531 value->i = box->int_field(value_offset); |
132
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|
2532 break; |
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|
2533 case T_LONG: |
165
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|
2534 value->j = box->long_field(long_value_offset); |
132
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|
2535 break; |
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jrose
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diff
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|
2536 default: |
60b728ec77c1
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|
2537 return T_ILLEGAL; |
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|
2538 } // end switch |
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|
2539 return type; |
0 | 2540 } |
2541 | |
2542 | |
2543 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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|
2544 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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|
2545 switch (type) { |
60b728ec77c1
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|
2546 case T_BOOLEAN: |
0 | 2547 box->bool_field_put(value_offset, value->z); |
132
60b728ec77c1
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diff
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|
2548 break; |
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113
diff
changeset
|
2549 case T_CHAR: |
0 | 2550 box->char_field_put(value_offset, value->c); |
132
60b728ec77c1
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jrose
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113
diff
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|
2551 break; |
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113
diff
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|
2552 case T_FLOAT: |
0 | 2553 box->float_field_put(value_offset, value->f); |
132
60b728ec77c1
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113
diff
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|
2554 break; |
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113
diff
changeset
|
2555 case T_DOUBLE: |
165
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diff
changeset
|
2556 box->double_field_put(long_value_offset, value->d); |
132
60b728ec77c1
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jrose
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113
diff
changeset
|
2557 break; |
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113
diff
changeset
|
2558 case T_BYTE: |
0 | 2559 box->byte_field_put(value_offset, value->b); |
132
60b728ec77c1
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113
diff
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|
2560 break; |
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diff
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|
2561 case T_SHORT: |
0 | 2562 box->short_field_put(value_offset, value->s); |
132
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113
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|
2563 break; |
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diff
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|
2564 case T_INT: |
0 | 2565 box->int_field_put(value_offset, value->i); |
132
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|
2566 break; |
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113
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|
2567 case T_LONG: |
165
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diff
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|
2568 box->long_field_put(long_value_offset, value->j); |
132
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113
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|
2569 break; |
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jrose
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113
diff
changeset
|
2570 default: |
60b728ec77c1
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|
2571 return T_ILLEGAL; |
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|
2572 } // end switch |
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|
2573 return type; |
0 | 2574 } |
2575 | |
2576 | |
665
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579
diff
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|
2577 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2578 switch (type) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2579 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2580 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2581 case T_BYTE: st->print("%d", value->b); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2582 case T_SHORT: st->print("%d", value->s); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2583 case T_INT: st->print("%d", value->i); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2584 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2585 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2586 case T_DOUBLE: st->print("%lf", value->d); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2587 default: st->print("type %d?", type); break; |
c89f86385056
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579
diff
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|
2588 } |
c89f86385056
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diff
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|
2589 } |
c89f86385056
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|
2590 |
c89f86385056
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diff
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|
2591 |
0 | 2592 // Support for java_lang_ref_Reference |
6725
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|
2593 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { |
da91efe96a93
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coleenp
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|
2594 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
da91efe96a93
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|
2595 address addr = ik->static_field_addr(static_lock_offset); |
da91efe96a93
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|
2596 return (HeapWord*) addr; |
da91efe96a93
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|
2597 } |
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|
2598 |
113
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|
2599 oop java_lang_ref_Reference::pending_list_lock() { |
6725
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coleenp
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6267
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|
2600 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
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diff
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|
2601 address addr = ik->static_field_addr(static_lock_offset); |
113
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|
2602 if (UseCompressedOops) { |
ba764ed4b6f2
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coleenp
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|
2603 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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coleenp
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|
2604 } else { |
ba764ed4b6f2
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coleenp
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changeset
|
2605 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2606 } |
0 | 2607 } |
2608 | |
113
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2609 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
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2610 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
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2611 address addr = ik->static_field_addr(static_pending_offset); |
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2612 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2613 return (HeapWord*)addr; |
0 | 2614 } |
2615 | |
113
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2616 oop java_lang_ref_Reference::pending_list() { |
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2617 char *addr = (char *)pending_list_addr(); |
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2618 if (UseCompressedOops) { |
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2619 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2620 } else { |
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2621 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2622 } |
0 | 2623 } |
2624 | |
2625 | |
2626 // Support for java_lang_ref_SoftReference | |
2627 | |
2628 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2629 return ref->long_field(timestamp_offset); | |
2630 } | |
2631 | |
2632 jlong java_lang_ref_SoftReference::clock() { | |
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2633 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
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2634 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2635 return *offset; |
0 | 2636 } |
2637 | |
2638 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
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2639 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
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2640 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2641 *offset = value; |
0 | 2642 } |
2643 | |
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2644 // Support for java_lang_invoke_DirectMethodHandle |
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2645 |
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2646 int java_lang_invoke_DirectMethodHandle::_member_offset; |
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2647 |
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2648 oop java_lang_invoke_DirectMethodHandle::member(oop dmh) { |
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2649 oop member_name = NULL; |
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2650 bool is_dmh = dmh->is_oop() && java_lang_invoke_DirectMethodHandle::is_instance(dmh); |
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2651 assert(is_dmh, "a DirectMethodHandle oop is expected"); |
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2652 if (is_dmh) { |
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2653 member_name = dmh->obj_field(member_offset_in_bytes()); |
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|
2654 } |
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2655 return member_name; |
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|
2656 } |
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|
2657 |
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2658 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
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2659 Klass* klass_oop = SystemDictionary::DirectMethodHandle_klass(); |
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2660 if (klass_oop != NULL && EnableInvokeDynamic) { |
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2661 compute_offset(_member_offset, klass_oop, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
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2662 } |
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|
2663 } |
0 | 2664 |
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2665 // Support for java_lang_invoke_MethodHandle |
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2666 |
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2667 int java_lang_invoke_MethodHandle::_type_offset; |
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2668 int java_lang_invoke_MethodHandle::_form_offset; |
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2669 |
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2670 int java_lang_invoke_MemberName::_clazz_offset; |
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2671 int java_lang_invoke_MemberName::_name_offset; |
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2672 int java_lang_invoke_MemberName::_type_offset; |
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|
2673 int java_lang_invoke_MemberName::_flags_offset; |
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2674 int java_lang_invoke_MemberName::_vmtarget_offset; |
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2675 int java_lang_invoke_MemberName::_vmloader_offset; |
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|
2676 int java_lang_invoke_MemberName::_vmindex_offset; |
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|
2677 |
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|
2678 int java_lang_invoke_LambdaForm::_vmentry_offset; |
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|
2679 |
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|
2680 void java_lang_invoke_MethodHandle::compute_offsets() { |
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2681 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
3938 | 2682 if (klass_oop != NULL && EnableInvokeDynamic) { |
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2683 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
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2684 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
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|
2685 if (_form_offset == 0) { |
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|
2686 EnableInvokeDynamic = false; |
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|
2687 } |
710 | 2688 } |
2689 } | |
2690 | |
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|
2691 void java_lang_invoke_MemberName::compute_offsets() { |
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2692 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
3938 | 2693 if (klass_oop != NULL && EnableInvokeDynamic) { |
2694 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2695 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2696 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2697 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2698 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2699 } |
2700 } | |
2701 | |
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2702 void java_lang_invoke_LambdaForm::compute_offsets() { |
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2703 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
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2704 if (klass_oop != NULL && EnableInvokeDynamic) { |
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2705 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
710 | 2706 } |
2707 } | |
2708 | |
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|
2709 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2710 return mh->obj_field(_type_offset); |
2711 } | |
2712 | |
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|
2713 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2714 mh->obj_field_put(_type_offset, mtype); |
2715 } | |
2716 | |
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|
2717 oop java_lang_invoke_MethodHandle::form(oop mh) { |
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|
2718 assert(_form_offset != 0, ""); |
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|
2719 return mh->obj_field(_form_offset); |
710 | 2720 } |
2721 | |
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2722 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { |
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|
2723 assert(_form_offset != 0, ""); |
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|
2724 mh->obj_field_put(_form_offset, lform); |
710 | 2725 } |
2726 | |
2727 /// MemberName accessors | |
2728 | |
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|
2729 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2730 assert(is_instance(mname), "wrong type"); |
2731 return mname->obj_field(_clazz_offset); | |
2732 } | |
2733 | |
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|
2734 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2735 assert(is_instance(mname), "wrong type"); |
2736 mname->obj_field_put(_clazz_offset, clazz); | |
2737 } | |
2738 | |
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|
2739 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2740 assert(is_instance(mname), "wrong type"); |
2741 return mname->obj_field(_name_offset); | |
2742 } | |
2743 | |
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|
2744 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2745 assert(is_instance(mname), "wrong type"); |
2746 mname->obj_field_put(_name_offset, name); | |
2747 } | |
2748 | |
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|
2749 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2750 assert(is_instance(mname), "wrong type"); |
2751 return mname->obj_field(_type_offset); | |
2752 } | |
2753 | |
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|
2754 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2755 assert(is_instance(mname), "wrong type"); |
2756 mname->obj_field_put(_type_offset, type); | |
2757 } | |
2758 | |
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|
2759 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2760 assert(is_instance(mname), "wrong type"); |
2761 return mname->int_field(_flags_offset); | |
2762 } | |
2763 | |
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|
2764 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2765 assert(is_instance(mname), "wrong type"); |
2766 mname->int_field_put(_flags_offset, flags); | |
2767 } | |
2768 | |
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2769 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2770 assert(is_instance(mname), "wrong type"); |
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2771 return (Metadata*)mname->address_field(_vmtarget_offset); |
710 | 2772 } |
2773 | |
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2774 #if INCLUDE_JVMTI |
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2775 // Can be executed on VM thread only |
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|
2776 void java_lang_invoke_MemberName::adjust_vmtarget(oop mname, Metadata* ref) { |
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|
2777 assert((is_instance(mname) && (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0), "wrong type"); |
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|
2778 assert(Thread::current()->is_VM_thread(), "not VM thread"); |
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|
2779 mname->address_field_put(_vmtarget_offset, (address)ref); |
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|
2780 } |
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|
2781 #endif // INCLUDE_JVMTI |
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2782 |
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2783 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
710 | 2784 assert(is_instance(mname), "wrong type"); |
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2785 // check the type of the vmtarget |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2786 oop dependency = NULL; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2787 if (ref != NULL) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2788 switch (flags(mname) & (MN_IS_METHOD | |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2789 MN_IS_CONSTRUCTOR | |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2790 MN_IS_FIELD)) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2791 case MN_IS_METHOD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2792 case MN_IS_CONSTRUCTOR: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2793 assert(ref->is_method(), "should be a method"); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2794 dependency = ((Method*)ref)->method_holder()->java_mirror(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2795 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2796 case MN_IS_FIELD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2797 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
|
2798 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
|
2799 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2800 default: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2801 ShouldNotReachHere(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2802 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2803 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2804 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
|
2805 // 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
|
2806 // 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
|
2807 // 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
|
2808 mname->obj_field_put(_vmloader_offset, dependency); |
710 | 2809 } |
2810 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2811 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2812 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
|
2813 return (intptr_t) mname->address_field(_vmindex_offset); |
710 | 2814 } |
2815 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2816 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
|
2817 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
|
2818 mname->address_field_put(_vmindex_offset, (address) index); |
710 | 2819 } |
2820 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2821 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
|
2822 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
|
2823 return lform->obj_field(_vmentry_offset); |
710 | 2824 } |
2825 | |
2826 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2827 // Support for java_lang_invoke_MethodType |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2828 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2829 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
|
2830 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
|
2831 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2832 void java_lang_invoke_MethodType::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2833 Klass* k = SystemDictionary::MethodType_klass(); |
710 | 2834 if (k != NULL) { |
2835 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2836 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2837 } | |
2838 } | |
2839 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2840 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2841 st->print("("); |
2842 objArrayOop pts = ptypes(mt); | |
2843 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2844 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2845 } | |
2846 st->print(")"); | |
2847 java_lang_Class::print_signature(rtype(mt), st); | |
2848 } | |
2849 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2850 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2851 ResourceMark rm; |
2852 stringStream buffer(128); | |
2853 print_signature(mt, &buffer); | |
2854 const char* sigstr = buffer.base(); | |
2855 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2856 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2857 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2858 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2859 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2860 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2861 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2862 return name; |
710 | 2863 } |
2864 | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2865 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
|
2866 if (mt1 == mt2) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2867 return true; |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2868 if (rtype(mt1) != rtype(mt2)) |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2869 return false; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2870 if (ptype_count(mt1) != ptype_count(mt2)) |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2871 return false; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2872 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2873 if (ptype(mt1, i) != ptype(mt2, i)) |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2874 return false; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2875 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2876 return true; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2877 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2878 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2879 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2880 assert(is_instance(mt), "must be a MethodType"); |
2881 return mt->obj_field(_rtype_offset); | |
2882 } | |
2883 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2884 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2885 assert(is_instance(mt), "must be a MethodType"); |
2886 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2887 } | |
2888 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2889 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2890 return ptypes(mt)->obj_at(idx); |
2891 } | |
2892 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2893 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
|
2894 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2895 } |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2896 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2897 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
|
2898 objArrayOop pts = ptypes(mt); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2899 int count = pts->length(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2900 int slots = 0; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2901 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
|
2902 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
|
2903 slots += type2size[bt]; |
710 | 2904 } |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2905 return slots; |
710 | 2906 } |
2907 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2908 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
|
2909 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
|
2910 return type2size[bt]; |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2911 } |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2912 |
710 | 2913 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2914 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2915 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2916 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
|
2917 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2918 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2919 if (!EnableInvokeDynamic) return; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2920 Klass* k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2921 if (k != NULL) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2922 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
|
2923 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2924 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2925 |
710 | 2926 |
0 | 2927 // Support for java_security_AccessControlContext |
2928 | |
2929 int java_security_AccessControlContext::_context_offset = 0; | |
2930 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2931 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
11010 | 2932 int java_security_AccessControlContext::_isAuthorized_offset = -1; |
0 | 2933 |
2934 void java_security_AccessControlContext::compute_offsets() { | |
2935 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2936 fieldDescriptor fd; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2937 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
0 | 2938 |
2939 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2940 fatal("Invalid layout of java.security.AccessControlContext"); | |
2941 } | |
2942 _context_offset = fd.offset(); | |
2943 | |
2944 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2945 fatal("Invalid layout of java.security.AccessControlContext"); | |
2946 } | |
2947 _privilegedContext_offset = fd.offset(); | |
2948 | |
2949 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2950 fatal("Invalid layout of java.security.AccessControlContext"); | |
2951 } | |
2952 _isPrivileged_offset = fd.offset(); | |
11010 | 2953 |
2954 // The offset may not be present for bootstrapping with older JDK. | |
2955 if (ik->find_local_field(vmSymbols::isAuthorized_name(), vmSymbols::bool_signature(), &fd)) { | |
2956 _isAuthorized_offset = fd.offset(); | |
2957 } | |
0 | 2958 } |
2959 | |
2960 | |
11010 | 2961 bool java_security_AccessControlContext::is_authorized(Handle context) { |
2962 assert(context.not_null() && context->klass() == SystemDictionary::AccessControlContext_klass(), "Invalid type"); | |
2963 assert(_isAuthorized_offset != -1, "should be set"); | |
2964 return context->bool_field(_isAuthorized_offset) != 0; | |
2965 } | |
0 | 2966 |
2967 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2968 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2969 // Ensure klass is initialized | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2970 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
0 | 2971 // Allocate result |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2972 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
0 | 2973 // Fill in values |
2974 result->obj_field_put(_context_offset, context()); | |
2975 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2976 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
|
2977 // 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
|
2978 if (_isAuthorized_offset != -1) { |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2979 result->bool_field_put(_isAuthorized_offset, true); |
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2980 } |
0 | 2981 return result; |
2982 } | |
2983 | |
2984 | |
2985 // Support for java_lang_ClassLoader | |
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2986 |
3938 | 2987 bool java_lang_ClassLoader::offsets_computed = false; |
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2988 int java_lang_ClassLoader::_loader_data_offset = -1; |
3938 | 2989 int java_lang_ClassLoader::parallelCapable_offset = -1; |
2990 | |
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2991 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
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2992 assert(loader != NULL && loader->is_oop(), "loader must be oop"); |
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2993 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
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2994 } |
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2995 |
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2996 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
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2997 return *java_lang_ClassLoader::loader_data_addr(loader); |
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2998 } |
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2999 |
3938 | 3000 void java_lang_ClassLoader::compute_offsets() { |
3001 assert(!offsets_computed, "offsets should be initialized only once"); | |
3002 offsets_computed = true; | |
3003 | |
3004 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
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3005 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
3938 | 3006 compute_optional_offset(parallelCapable_offset, |
3007 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
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3008 |
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3009 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
3938 | 3010 } |
0 | 3011 |
3012 oop java_lang_ClassLoader::parent(oop loader) { | |
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3013 assert(is_instance(loader), "loader must be oop"); |
0 | 3014 return loader->obj_field(parent_offset); |
3015 } | |
3016 | |
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3017 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
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3018 assert(is_instance(loader), "loader must be oop"); |
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3019 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
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3020 oop acl = loader; |
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3021 debug_only(jint loop_count = 0); |
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3022 // This loop taken verbatim from ClassLoader.java: |
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3023 do { |
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3024 acl = parent(acl); |
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3025 if (cl == acl) { |
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3026 return true; |
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3027 } |
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3028 assert(++loop_count > 0, "loop_count overflow"); |
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3029 } while (acl != NULL); |
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3030 return false; |
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3031 } |
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3032 |
0 | 3033 |
3938 | 3034 // For class loader classes, parallelCapable defined |
3035 // based on non-null field | |
3036 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
3037 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
3038 if (!JDK_Version::is_gte_jdk17x_version() | |
3039 || parallelCapable_offset == -1) { | |
3040 // Default for backward compatibility is false | |
3041 return false; | |
3042 } | |
3043 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
3044 } | |
3045 | |
0 | 3046 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
3047 // Fix for 4474172; see evaluation for more details | |
3048 loader = non_reflection_class_loader(loader); | |
3049 | |
3050 oop cl = SystemDictionary::java_system_loader(); | |
3051 while(cl != NULL) { | |
3052 if (cl == loader) return true; | |
3053 cl = parent(cl); | |
3054 } | |
3055 return false; | |
3056 } | |
3057 | |
3058 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
3059 if (loader != NULL) { | |
3060 // See whether this is one of the class loaders associated with | |
3061 // the generated bytecodes for reflection, and if so, "magically" | |
3062 // delegate to its parent to prevent class loading from occurring | |
3063 // in places where applications using reflection didn't expect it. | |
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3064 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 3065 // This might be null in non-1.4 JDKs |
3066 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
3067 return parent(loader); | |
3068 } | |
3069 } | |
3070 return loader; | |
3071 } | |
3072 | |
3073 | |
3074 // Support for java_lang_System | |
3075 int java_lang_System::in_offset_in_bytes() { | |
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3076 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 3077 } |
3078 | |
3079 | |
3080 int java_lang_System::out_offset_in_bytes() { | |
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3081 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 3082 } |
3083 | |
3084 | |
3085 int java_lang_System::err_offset_in_bytes() { | |
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3086 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 3087 } |
3088 | |
3089 | |
11010 | 3090 bool java_lang_System::has_security_manager() { |
3091 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::System_klass()); | |
3092 address addr = ik->static_field_addr(static_security_offset); | |
3093 if (UseCompressedOops) { | |
3094 return oopDesc::load_decode_heap_oop((narrowOop *)addr) != NULL; | |
3095 } else { | |
3096 return oopDesc::load_decode_heap_oop((oop*)addr) != NULL; | |
3097 } | |
3098 } | |
0 | 3099 |
3938 | 3100 int java_lang_Class::_klass_offset; |
3101 int java_lang_Class::_array_klass_offset; | |
3102 int java_lang_Class::_oop_size_offset; | |
3103 int java_lang_Class::_static_oop_field_count_offset; | |
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3104 int java_lang_Class::_protection_domain_offset; |
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3105 int java_lang_Class::_init_lock_offset; |
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3106 int java_lang_Class::_signers_offset; |
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3107 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
0 | 3108 int java_lang_Throwable::backtrace_offset; |
3109 int java_lang_Throwable::detailMessage_offset; | |
3110 int java_lang_Throwable::cause_offset; | |
3111 int java_lang_Throwable::stackTrace_offset; | |
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3112 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 3113 int java_lang_reflect_AccessibleObject::override_offset; |
3114 int java_lang_reflect_Method::clazz_offset; | |
3115 int java_lang_reflect_Method::name_offset; | |
3116 int java_lang_reflect_Method::returnType_offset; | |
3117 int java_lang_reflect_Method::parameterTypes_offset; | |
3118 int java_lang_reflect_Method::exceptionTypes_offset; | |
3119 int java_lang_reflect_Method::slot_offset; | |
3120 int java_lang_reflect_Method::modifiers_offset; | |
3121 int java_lang_reflect_Method::signature_offset; | |
3122 int java_lang_reflect_Method::annotations_offset; | |
3123 int java_lang_reflect_Method::parameter_annotations_offset; | |
3124 int java_lang_reflect_Method::annotation_default_offset; | |
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3125 int java_lang_reflect_Method::type_annotations_offset; |
0 | 3126 int java_lang_reflect_Constructor::clazz_offset; |
3127 int java_lang_reflect_Constructor::parameterTypes_offset; | |
3128 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
3129 int java_lang_reflect_Constructor::slot_offset; | |
3130 int java_lang_reflect_Constructor::modifiers_offset; | |
3131 int java_lang_reflect_Constructor::signature_offset; | |
3132 int java_lang_reflect_Constructor::annotations_offset; | |
3133 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
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3134 int java_lang_reflect_Constructor::type_annotations_offset; |
0 | 3135 int java_lang_reflect_Field::clazz_offset; |
3136 int java_lang_reflect_Field::name_offset; | |
3137 int java_lang_reflect_Field::type_offset; | |
3138 int java_lang_reflect_Field::slot_offset; | |
3139 int java_lang_reflect_Field::modifiers_offset; | |
3140 int java_lang_reflect_Field::signature_offset; | |
3141 int java_lang_reflect_Field::annotations_offset; | |
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3142 int java_lang_reflect_Field::type_annotations_offset; |
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3143 int java_lang_reflect_Parameter::name_offset; |
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3144 int java_lang_reflect_Parameter::modifiers_offset; |
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3145 int java_lang_reflect_Parameter::index_offset; |
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3146 int java_lang_reflect_Parameter::executable_offset; |
0 | 3147 int java_lang_boxing_object::value_offset; |
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3148 int java_lang_boxing_object::long_value_offset; |
0 | 3149 int java_lang_ref_Reference::referent_offset; |
3150 int java_lang_ref_Reference::queue_offset; | |
3151 int java_lang_ref_Reference::next_offset; | |
3152 int java_lang_ref_Reference::discovered_offset; | |
3153 int java_lang_ref_Reference::static_lock_offset; | |
3154 int java_lang_ref_Reference::static_pending_offset; | |
3155 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
3156 int java_lang_ref_SoftReference::timestamp_offset; | |
3157 int java_lang_ref_SoftReference::static_clock_offset; | |
3158 int java_lang_ClassLoader::parent_offset; | |
3159 int java_lang_System::static_in_offset; | |
3160 int java_lang_System::static_out_offset; | |
3161 int java_lang_System::static_err_offset; | |
11010 | 3162 int java_lang_System::static_security_offset; |
0 | 3163 int java_lang_StackTraceElement::declaringClass_offset; |
3164 int java_lang_StackTraceElement::methodName_offset; | |
3165 int java_lang_StackTraceElement::fileName_offset; | |
3166 int java_lang_StackTraceElement::lineNumber_offset; | |
3167 int java_lang_AssertionStatusDirectives::classes_offset; | |
3168 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
3169 int java_lang_AssertionStatusDirectives::packages_offset; | |
3170 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
3171 int java_lang_AssertionStatusDirectives::deflt_offset; | |
3172 int java_nio_Buffer::_limit_offset; | |
3173 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
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3174 int sun_reflect_ConstantPool::_oop_offset; |
0 | 3175 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
3176 | |
3177 | |
3178 // Support for java_lang_StackTraceElement | |
3179 | |
3180 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
3181 element->obj_field_put(fileName_offset, value); | |
3182 } | |
3183 | |
3184 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
3185 element->obj_field_put(declaringClass_offset, value); | |
3186 } | |
3187 | |
3188 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
3189 element->obj_field_put(methodName_offset, value); | |
3190 } | |
3191 | |
3192 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
3193 element->int_field_put(lineNumber_offset, value); | |
3194 } | |
3195 | |
3196 | |
3197 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
3198 | |
3199 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
3200 o->obj_field_put(classes_offset, val); | |
3201 } | |
3202 | |
3203 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
3204 o->obj_field_put(classEnabled_offset, val); | |
3205 } | |
3206 | |
3207 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
3208 o->obj_field_put(packages_offset, val); | |
3209 } | |
3210 | |
3211 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
3212 o->obj_field_put(packageEnabled_offset, val); | |
3213 } | |
3214 | |
3215 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
3216 o->bool_field_put(deflt_offset, val); | |
3217 } | |
3218 | |
3219 | |
3220 // Support for intrinsification of java.nio.Buffer.checkIndex | |
3221 int java_nio_Buffer::limit_offset() { | |
3222 return _limit_offset; | |
3223 } | |
3224 | |
3225 | |
3226 void java_nio_Buffer::compute_offsets() { | |
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3227 Klass* k = SystemDictionary::nio_Buffer_klass(); |
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3228 assert(k != NULL, "must be loaded in 1.4+"); |
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3229 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 3230 } |
3231 | |
3232 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
3233 if (_owner_offset != 0) return; | |
3234 | |
3235 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
3236 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
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3237 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
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3238 compute_offset(_owner_offset, k, |
0 | 3239 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
3240 } | |
3241 | |
3242 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
3243 assert(_owner_offset != 0, "Must be initialized"); | |
3244 return obj->obj_field(_owner_offset); | |
3245 } | |
3246 | |
3247 // Compute hard-coded offsets | |
3248 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
3249 // are not available to determine the offset_of_static_fields. | |
3250 void JavaClasses::compute_hard_coded_offsets() { | |
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3251 const int x = heapOopSize; |
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3252 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 3253 |
3254 // Throwable Class | |
3255 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3256 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3257 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3258 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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3259 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3260 |
3261 // java_lang_boxing_object | |
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3262 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3263 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3264 |
3265 // java_lang_ref_Reference: | |
3266 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3267 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3268 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3269 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3270 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3271 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3272 // Artificial fields for java_lang_ref_Reference | |
3273 // The first field is for the discovered field added in 1.4 | |
3274 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3275 | |
3276 // java_lang_ref_SoftReference Class | |
165
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6703888: Compressed Oops: use the 32-bits gap after klass in a object
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|
3277 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3278 // Don't multiply static fields because they are always in wordSize units |
3279 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3280 | |
3281 // java_lang_ClassLoader | |
3282 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3283 | |
3284 // java_lang_System | |
3285 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3286 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3287 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
11010 | 3288 java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x; |
0 | 3289 |
3290 // java_lang_StackTraceElement | |
3291 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3292 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3293 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3294 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3295 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3296 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3297 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3298 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3299 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3300 | |
3301 } | |
3302 | |
3303 | |
3304 // Compute non-hard-coded field offsets of all the classes in this file | |
3305 void JavaClasses::compute_offsets() { | |
3938 | 3306 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3307 java_lang_ClassLoader::compute_offsets(); | |
0 | 3308 java_lang_Thread::compute_offsets(); |
3309 java_lang_ThreadGroup::compute_offsets(); | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
changeset
|
3310 if (EnableInvokeDynamic) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3311 java_lang_invoke_MethodHandle::compute_offsets(); |
12010
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
3312 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
|
3313 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
|
3314 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
|
3315 java_lang_invoke_MethodType::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3316 java_lang_invoke_CallSite::compute_offsets(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
3317 } |
0 | 3318 java_security_AccessControlContext::compute_offsets(); |
3319 // Initialize reflection classes. The layouts of these classes | |
3320 // changed with the new reflection implementation in JDK 1.4, and | |
3321 // since the Universe doesn't know what JDK version it is until this | |
3322 // point we defer computation of these offsets until now. | |
3323 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3324 java_lang_reflect_Method::compute_offsets(); | |
3325 java_lang_reflect_Constructor::compute_offsets(); | |
3326 java_lang_reflect_Field::compute_offsets(); | |
3327 if (JDK_Version::is_gte_jdk14x_version()) { | |
3328 java_nio_Buffer::compute_offsets(); | |
3329 } | |
3330 if (JDK_Version::is_gte_jdk15x_version()) { | |
3331 sun_reflect_ConstantPool::compute_offsets(); | |
3332 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3333 } | |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7458
diff
changeset
|
3334 if (JDK_Version::is_jdk18x_version()) |
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7458
diff
changeset
|
3335 java_lang_reflect_Parameter::compute_offsets(); |
710 | 3336 |
3337 // generated interpreter code wants to know about the offsets we just computed: | |
3338 AbstractAssembler::update_delayed_values(); | |
0 | 3339 } |
3340 | |
3341 #ifndef PRODUCT | |
3342 | |
3343 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3344 // against changes in the class files | |
3345 | |
3346 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3347 EXCEPTION_MARK; | |
3348 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3349 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
|
3350 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3351 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3352 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
|
3353 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
|
3354 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3355 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3356 return false; | |
3357 } | |
3358 if (fd.is_static()) { | |
3359 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3360 return false; | |
3361 } | |
3362 if (fd.offset() == hardcoded_offset ) { | |
3363 return true; | |
3364 } else { | |
3365 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3366 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3367 return false; | |
3368 } | |
3369 } | |
3370 | |
3371 | |
3372 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3373 EXCEPTION_MARK; | |
3374 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3375 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
|
3376 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3377 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3378 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
|
3379 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
|
3380 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3381 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3382 return false; | |
3383 } | |
3384 if (!fd.is_static()) { | |
3385 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3386 return false; | |
3387 } | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3388 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
0 | 3389 return true; |
3390 } else { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3391 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 | 3392 return false; |
3393 } | |
3394 } | |
3395 | |
3396 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3397 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
|
3398 EXCEPTION_MARK; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3399 fieldDescriptor fd; |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3400 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
|
3401 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
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|
3402 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3403 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
|
3404 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
|
3405 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
|
3406 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
|
3407 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3408 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3409 if (!fd.is_static() || !fd.has_initial_value()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3410 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
|
3411 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3412 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3413 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3414 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
|
3415 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3416 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3417 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3418 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3419 return true; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3420 } else { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3421 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
|
3422 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3423 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3424 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3425 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3426 |
0 | 3427 // Check the hard-coded field offsets of all the classes in this file |
3428 | |
3429 void JavaClasses::check_offsets() { | |
3430 bool valid = true; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
3431 HandleMark hm; |
0 | 3432 |
3433 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3434 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3435 | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3436 #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
|
3437 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
|
3438 |
0 | 3439 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3440 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3441 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3442 #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
|
3443 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
|
3444 |
0 | 3445 // java.lang.String |
3446 | |
3447 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
6057 | 3448 if (java_lang_String::has_offset_field()) { |
3449 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3450 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3451 } | |
3452 if (java_lang_String::has_hash_field()) { | |
3453 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3454 } | |
0 | 3455 |
3456 // java.lang.Class | |
3457 | |
3458 // Fake fields | |
3459 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3460 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3461 | |
3462 // java.lang.Throwable | |
3463 | |
3464 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3465 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3466 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3467 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3468 | |
3469 // Boxed primitive objects (java_lang_boxing_object) | |
3470 | |
3471 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3472 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3473 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
|
3474 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3475 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3476 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3477 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
|
3478 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3479 |
3480 // java.lang.ClassLoader | |
3481 | |
3482 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3483 | |
3484 // java.lang.System | |
3485 | |
3486 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3487 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3488 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
11010 | 3489 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, security, "Ljava/lang/SecurityManager;"); |
0 | 3490 |
3491 // java.lang.StackTraceElement | |
3492 | |
3493 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3494 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3495 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3496 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3497 | |
3498 // java.lang.ref.Reference | |
3499 | |
3500 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3501 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3502 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3503 // Fake field | |
3504 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3505 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3506 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3507 | |
3508 // java.lang.ref.SoftReference | |
3509 | |
3510 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3511 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3512 | |
3513 // java.lang.AssertionStatusDirectives | |
3514 // | |
3515 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3516 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3517 // into merlin "for some time." Without it, the vm will fail with early | |
3518 // merlin builds. | |
3519 | |
3520 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3521 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3522 const char* sig = "[Ljava/lang/String;"; | |
3523 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3524 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3525 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3526 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3527 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3528 } | |
3529 | |
3530 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3531 } | |
3532 | |
3533 #endif // PRODUCT | |
3534 | |
3938 | 3535 int InjectedField::compute_offset() { |
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3536 Klass* klass_oop = klass(); |
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3537 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
3938 | 3538 if (!may_be_java && !fs.access_flags().is_internal()) { |
3539 // Only look at injected fields | |
3540 continue; | |
3541 } | |
3542 if (fs.name() == name() && fs.signature() == signature()) { | |
3543 return fs.offset(); | |
3544 } | |
3545 } | |
3546 ResourceMark rm; | |
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3547 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)" : ""); |
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3548 #ifndef PRODUCT |
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3549 klass_oop->print(); |
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3550 tty->print_cr("all fields:"); |
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3551 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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3552 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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3553 } |
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3554 #endif //PRODUCT |
3938 | 3555 fatal("Invalid layout of preloaded class"); |
3556 return -1; | |
3557 } | |
3558 | |
0 | 3559 void javaClasses_init() { |
3560 JavaClasses::compute_offsets(); | |
3561 JavaClasses::check_offsets(); | |
3562 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3563 } |