Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 17089:245c1ceb8221
Findbugs
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Tue, 09 Sep 2014 15:50:47 -0700 |
parents | 8a05a498ab76 |
children | 52b4284cb496 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
6162 | 26 #include "classfile/altHashing.hpp" |
1972 | 27 #include "classfile/javaClasses.hpp" |
28 #include "classfile/symbolTable.hpp" | |
29 #include "classfile/vmSymbols.hpp" | |
30 #include "code/debugInfo.hpp" | |
31 #include "code/pcDesc.hpp" | |
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32 #include "compiler/compilerOracle.hpp" |
1972 | 33 #include "interpreter/interpreter.hpp" |
34 #include "memory/oopFactory.hpp" | |
35 #include "memory/resourceArea.hpp" | |
36 #include "memory/universe.inline.hpp" | |
3938 | 37 #include "oops/fieldStreams.hpp" |
1972 | 38 #include "oops/instanceKlass.hpp" |
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39 #include "oops/instanceMirrorKlass.hpp" |
1972 | 40 #include "oops/klass.hpp" |
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41 #include "oops/method.hpp" |
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42 #include "oops/symbol.hpp" |
1972 | 43 #include "oops/typeArrayOop.hpp" |
44 #include "runtime/fieldDescriptor.hpp" | |
45 #include "runtime/handles.inline.hpp" | |
46 #include "runtime/interfaceSupport.hpp" | |
47 #include "runtime/java.hpp" | |
48 #include "runtime/javaCalls.hpp" | |
49 #include "runtime/safepoint.hpp" | |
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50 #include "runtime/thread.inline.hpp" |
1972 | 51 #include "runtime/vframe.hpp" |
52 #include "utilities/preserveException.hpp" | |
0 | 53 |
3938 | 54 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
55 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
56 | |
57 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
58 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
59 | |
60 InjectedField JavaClasses::_injected_fields[] = { | |
61 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
62 }; | |
63 | |
64 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
65 return _injected_fields[id].compute_offset(); | |
66 } | |
67 | |
68 | |
69 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
70 *field_count = 0; | |
71 | |
72 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
73 if (sid == vmSymbols::NO_SID) { | |
74 // Only well known classes can inject fields | |
75 return NULL; | |
76 } | |
77 | |
78 int count = 0; | |
79 int start = -1; | |
80 | |
81 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
82 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
83 count++; \ | |
84 if (start == -1) start = klass##_##name##_enum; \ | |
85 } | |
86 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
87 #undef LOOKUP_INJECTED_FIELD | |
88 | |
89 if (start != -1) { | |
90 *field_count = count; | |
91 return _injected_fields + start; | |
92 } | |
93 return NULL; | |
94 } | |
95 | |
96 | |
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97 static bool find_field(InstanceKlass* ik, |
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98 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 99 fieldDescriptor* fd, |
100 bool allow_super = false) { | |
101 if (allow_super) | |
102 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
103 else | |
104 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
105 } | |
106 | |
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107 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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108 static void |
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109 compute_offset(int &dest_offset, |
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110 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 111 bool allow_super = false) { |
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112 fieldDescriptor fd; |
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113 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 114 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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115 ResourceMark rm; |
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116 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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117 #ifndef PRODUCT |
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118 klass_oop->print(); |
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119 tty->print_cr("all fields:"); |
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120 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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121 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
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122 } |
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123 #endif //PRODUCT |
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124 fatal("Invalid layout of preloaded class"); |
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125 } |
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126 dest_offset = fd.offset(); |
0 | 127 } |
128 | |
129 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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130 static void |
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131 compute_optional_offset(int& dest_offset, |
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132 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 133 bool allow_super = false) { |
132
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134 fieldDescriptor fd; |
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135 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 136 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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137 dest_offset = fd.offset(); |
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138 } |
0 | 139 } |
140 | |
710 | 141 |
6057 | 142 int java_lang_String::value_offset = 0; |
143 int java_lang_String::offset_offset = 0; | |
144 int java_lang_String::count_offset = 0; | |
145 int java_lang_String::hash_offset = 0; | |
146 | |
147 bool java_lang_String::initialized = false; | |
148 | |
149 void java_lang_String::compute_offsets() { | |
150 assert(!initialized, "offsets should be initialized only once"); | |
151 | |
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152 Klass* k = SystemDictionary::String_klass(); |
6057 | 153 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); |
154 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
155 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
156 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
157 | |
158 initialized = true; | |
159 } | |
160 | |
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161 Handle java_lang_String::basic_create(int length, TRAPS) { |
6057 | 162 assert(initialized, "Must be initialized"); |
0 | 163 // Create the String object first, so there's a chance that the String |
164 // and the char array it points to end up in the same cache line. | |
165 oop obj; | |
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166 obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 167 |
168 // Create the char array. The String object must be handlized here | |
169 // because GC can happen as a result of the allocation attempt. | |
170 Handle h_obj(THREAD, obj); | |
171 typeArrayOop buffer; | |
172 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
173 | |
174 // Point the String at the char array | |
175 obj = h_obj(); | |
176 set_value(obj, buffer); | |
177 // No need to zero the offset, allocation zero'ed the entire String object | |
178 assert(offset(obj) == 0, "initial String offset should be zero"); | |
179 //set_offset(obj, 0); | |
180 set_count(obj, length); | |
181 | |
182 return h_obj; | |
183 } | |
184 | |
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185 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { |
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186 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 187 typeArrayOop buffer = value(h_obj()); |
188 for (int index = 0; index < length; index++) { | |
189 buffer->char_at_put(index, unicode[index]); | |
190 } | |
191 return h_obj; | |
192 } | |
193 | |
194 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
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195 Handle h_obj = create_from_unicode(unicode, length, CHECK_0); |
0 | 196 return h_obj(); |
197 } | |
198 | |
199 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
200 if (utf8_str == NULL) { | |
201 return Handle(); | |
202 } | |
203 int length = UTF8::unicode_length(utf8_str); | |
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204 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 205 if (length > 0) { |
206 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
207 } | |
208 return h_obj; | |
209 } | |
210 | |
211 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
212 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
213 return h_obj(); | |
214 } | |
215 | |
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216 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 217 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
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218 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 219 if (length > 0) { |
220 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
221 } | |
222 return h_obj; | |
223 } | |
224 | |
225 // Converts a C string to a Java String based on current encoding | |
226 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
227 assert(str != NULL, "bad arguments"); | |
228 | |
229 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
230 static to_java_string_fn_t _to_java_string_fn = NULL; | |
231 | |
232 if (_to_java_string_fn == NULL) { | |
233 void *lib_handle = os::native_java_library(); | |
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234 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 235 if (_to_java_string_fn == NULL) { |
236 fatal("NewStringPlatform missing"); | |
237 } | |
238 } | |
239 | |
240 jstring js = NULL; | |
241 { JavaThread* thread = (JavaThread*)THREAD; | |
242 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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243 HandleMark hm(thread); |
0 | 244 ThreadToNativeFromVM ttn(thread); |
245 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
246 } | |
247 return Handle(THREAD, JNIHandles::resolve(js)); | |
248 } | |
249 | |
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250 // Converts a Java String to a native C string that can be used for |
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251 // native OS calls. |
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252 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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253 |
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254 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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255 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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256 |
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257 if (_to_platform_string_fn == NULL) { |
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258 void *lib_handle = os::native_java_library(); |
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259 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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260 if (_to_platform_string_fn == NULL) { |
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261 fatal("GetStringPlatformChars missing"); |
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262 } |
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263 } |
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264 |
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265 char *native_platform_string; |
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266 { JavaThread* thread = (JavaThread*)THREAD; |
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267 assert(thread->is_Java_thread(), "must be java thread"); |
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268 JNIEnv *env = thread->jni_environment(); |
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269 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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270 bool is_copy; |
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271 HandleMark hm(thread); |
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272 ThreadToNativeFromVM ttn(thread); |
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273 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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274 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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275 JNIHandles::destroy_local(js); |
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276 } |
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277 return native_platform_string; |
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|
278 } |
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|
279 |
0 | 280 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
281 oop obj = java_string(); | |
282 // Typical usage is to convert all '/' to '.' in string. | |
283 typeArrayOop value = java_lang_String::value(obj); | |
284 int offset = java_lang_String::offset(obj); | |
285 int length = java_lang_String::length(obj); | |
286 | |
287 // First check if any from_char exist | |
288 int index; // Declared outside, used later | |
289 for (index = 0; index < length; index++) { | |
290 if (value->char_at(index + offset) == from_char) { | |
291 break; | |
292 } | |
293 } | |
294 if (index == length) { | |
295 // No from_char, so do not copy. | |
296 return java_string; | |
297 } | |
298 | |
299 // Create new UNICODE buffer. Must handlize value because GC | |
300 // may happen during String and char array creation. | |
301 typeArrayHandle h_value(THREAD, value); | |
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302 Handle string = basic_create(length, CHECK_NH); |
0 | 303 |
304 typeArrayOop from_buffer = h_value(); | |
305 typeArrayOop to_buffer = java_lang_String::value(string()); | |
306 | |
307 // Copy contents | |
308 for (index = 0; index < length; index++) { | |
309 jchar c = from_buffer->char_at(index + offset); | |
310 if (c == from_char) { | |
311 c = to_char; | |
312 } | |
313 to_buffer->char_at_put(index, c); | |
314 } | |
315 return string; | |
316 } | |
317 | |
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318 jchar* java_lang_String::as_unicode_string(oop java_string, int& length, TRAPS) { |
0 | 319 typeArrayOop value = java_lang_String::value(java_string); |
320 int offset = java_lang_String::offset(java_string); | |
321 length = java_lang_String::length(java_string); | |
322 | |
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323 jchar* result = NEW_RESOURCE_ARRAY_RETURN_NULL(jchar, length); |
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324 if (result != NULL) { |
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325 for (int index = 0; index < length; index++) { |
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326 result[index] = value->char_at(index + offset); |
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327 } |
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328 } else { |
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329 THROW_MSG_0(vmSymbols::java_lang_OutOfMemoryError(), "could not allocate Unicode string"); |
0 | 330 } |
331 return result; | |
332 } | |
333 | |
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334 unsigned int java_lang_String::hash_code(oop java_string) { |
6162 | 335 int length = java_lang_String::length(java_string); |
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336 // Zero length string will hash to zero with String.hashCode() function. |
6162 | 337 if (length == 0) return 0; |
338 | |
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339 typeArrayOop value = java_lang_String::value(java_string); |
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340 int offset = java_lang_String::offset(java_string); |
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341 return java_lang_String::hash_code(value->char_at_addr(offset), length); |
6162 | 342 } |
343 | |
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344 char* java_lang_String::as_quoted_ascii(oop java_string) { |
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345 typeArrayOop value = java_lang_String::value(java_string); |
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346 int offset = java_lang_String::offset(java_string); |
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347 int length = java_lang_String::length(java_string); |
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348 |
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349 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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350 if (base == NULL) return NULL; |
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351 |
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352 int result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
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353 char* result = NEW_RESOURCE_ARRAY(char, result_length); |
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354 UNICODE::as_quoted_ascii(base, length, result, result_length); |
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355 assert(result_length >= length + 1, "must not be shorter"); |
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356 assert(result_length == (int)strlen(result) + 1, "must match"); |
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357 return result; |
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|
358 } |
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|
359 |
6162 | 360 unsigned int java_lang_String::hash_string(oop java_string) { |
2418
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361 int length = java_lang_String::length(java_string); |
6162 | 362 // Zero length string doesn't hash necessarily hash to zero. |
363 if (length == 0) { | |
364 return StringTable::hash_string(NULL, 0); | |
365 } | |
366 | |
367 typeArrayOop value = java_lang_String::value(java_string); | |
368 int offset = java_lang_String::offset(java_string); | |
369 return StringTable::hash_string(value->char_at_addr(offset), length); | |
2418
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7032129: Native memory usage grow unexpectedly for vm/oom/*InternedString tests
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|
370 } |
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parents:
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|
371 |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
372 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 373 oop obj = java_string(); |
374 typeArrayOop value = java_lang_String::value(obj); | |
375 int offset = java_lang_String::offset(obj); | |
376 int length = java_lang_String::length(obj); | |
949
489a4f8dcd0f
6865583: Verbose CIPrintMethodCodes asserts when ldc an empty String
twisti
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931
diff
changeset
|
377 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
378 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
|
379 return sym; |
0 | 380 } |
381 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
382 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
383 typeArrayOop value = java_lang_String::value(java_string); |
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6814659: separable cleanups and subroutines for 6655638
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diff
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|
384 int offset = java_lang_String::offset(java_string); |
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6814659: separable cleanups and subroutines for 6655638
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diff
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|
385 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
|
386 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
665
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6814659: separable cleanups and subroutines for 6655638
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diff
changeset
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387 return SymbolTable::probe_unicode(base, length); |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
388 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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diff
changeset
|
389 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
390 |
0 | 391 int java_lang_String::utf8_length(oop java_string) { |
392 typeArrayOop value = java_lang_String::value(java_string); | |
393 int offset = java_lang_String::offset(java_string); | |
394 int length = java_lang_String::length(java_string); | |
395 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
396 return UNICODE::utf8_length(position, length); | |
397 } | |
398 | |
399 char* java_lang_String::as_utf8_string(oop java_string) { | |
400 typeArrayOop value = java_lang_String::value(java_string); | |
401 int offset = java_lang_String::offset(java_string); | |
402 int length = java_lang_String::length(java_string); | |
403 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
404 return UNICODE::as_utf8(position, length); | |
405 } | |
406 | |
1989
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
407 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
408 typeArrayOop value = java_lang_String::value(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
409 int offset = java_lang_String::offset(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
410 int length = java_lang_String::length(java_string); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
411 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
412 return UNICODE::as_utf8(position, length, buf, buflen); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
413 } |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
sla
parents:
1980
diff
changeset
|
414 |
0 | 415 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
416 typeArrayOop value = java_lang_String::value(java_string); | |
417 int offset = java_lang_String::offset(java_string); | |
418 int length = java_lang_String::length(java_string); | |
419 assert(start + len <= length, "just checking"); | |
420 jchar* position = value->char_at_addr(offset + start); | |
421 return UNICODE::as_utf8(position, len); | |
422 } | |
423 | |
424 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
6867 | 425 assert(java_string->klass() == SystemDictionary::String_klass(), |
0 | 426 "must be java_string"); |
427 typeArrayOop value = java_lang_String::value(java_string); | |
428 int offset = java_lang_String::offset(java_string); | |
429 int length = java_lang_String::length(java_string); | |
430 if (length != len) { | |
431 return false; | |
432 } | |
433 for (int i = 0; i < len; i++) { | |
434 if (value->char_at(i + offset) != chars[i]) { | |
435 return false; | |
436 } | |
437 } | |
438 return true; | |
439 } | |
440 | |
12275
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
441 bool java_lang_String::equals(oop str1, oop str2) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
442 assert(str1->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
443 "must be java String"); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
444 assert(str2->klass() == SystemDictionary::String_klass(), |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
445 "must be java String"); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
446 typeArrayOop value1 = java_lang_String::value(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
447 int offset1 = java_lang_String::offset(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
448 int length1 = java_lang_String::length(str1); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
449 typeArrayOop value2 = java_lang_String::value(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
450 int offset2 = java_lang_String::offset(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
451 int length2 = java_lang_String::length(str2); |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
452 |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
453 if (length1 != length2) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
454 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
455 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
456 for (int i = 0; i < length1; i++) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
457 if (value1->char_at(i + offset1) != value2->char_at(i + offset2)) { |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
458 return false; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
459 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
460 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
461 return true; |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
462 } |
63147986a428
8019835: Strings interned in different threads equal but does not ==
dcubed
parents:
12010
diff
changeset
|
463 |
14909 | 464 void java_lang_String::print(Handle java_string, outputStream* st) { |
465 oop obj = java_string(); | |
466 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); | |
467 typeArrayOop value = java_lang_String::value(obj); | |
468 int offset = java_lang_String::offset(obj); | |
469 int length = java_lang_String::length(obj); | |
0 | 470 |
471 int end = MIN2(length, 100); | |
472 if (value == NULL) { | |
473 // This can happen if, e.g., printing a String | |
474 // object before its initializer has been called | |
475 st->print_cr("NULL"); | |
476 } else { | |
477 st->print("\""); | |
478 for (int index = 0; index < length; index++) { | |
479 st->print("%c", value->char_at(index + offset)); | |
480 } | |
481 st->print("\""); | |
482 } | |
483 } | |
484 | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
485 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
486 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
487 assert(mirror.not_null() && fd->is_static(), "just checking"); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
488 if (fd->has_initial_value()) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
489 BasicType t = fd->field_type(); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
490 switch (t) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
491 case T_BYTE: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
492 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
493 break; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
494 case T_BOOLEAN: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
495 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
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diff
changeset
|
496 break; |
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7017732: move static fields into Class to prepare for perm gen removal
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diff
changeset
|
497 case T_CHAR: |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
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498 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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499 break; |
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500 case T_SHORT: |
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501 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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502 break; |
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503 case T_INT: |
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504 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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505 break; |
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506 case T_FLOAT: |
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507 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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508 break; |
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509 case T_DOUBLE: |
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510 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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511 break; |
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512 case T_LONG: |
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513 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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514 break; |
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515 case T_OBJECT: |
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516 { |
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517 #ifdef ASSERT |
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518 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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519 assert(fd->signature() == sym, "just checking"); |
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520 #endif |
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521 oop string = fd->string_initial_value(CHECK); |
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522 mirror()->obj_field_put(fd->offset(), string); |
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523 } |
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524 break; |
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525 default: |
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526 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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527 "Illegal ConstantValue attribute in class file"); |
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528 } |
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529 } |
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530 } |
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531 |
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532 |
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533 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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534 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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535 |
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536 // If the offset was read from the shared archive, it was fixed up already |
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537 if (!k->is_shared()) { |
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538 if (k->oop_is_instance()) { |
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539 // During bootstrap, java.lang.Class wasn't loaded so static field |
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540 // offsets were computed without the size added it. Go back and |
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541 // update all the static field offsets to included the size. |
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542 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
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543 if (fs.access_flags().is_static()) { |
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544 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
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545 fs.set_offset(real_offset); |
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546 } |
3938 | 547 } |
548 } | |
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549 } |
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550 create_mirror(k, Handle(NULL), CHECK); |
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551 } |
0 | 552 |
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553 oop java_lang_Class::create_mirror(KlassHandle k, Handle protection_domain, TRAPS) { |
0 | 554 assert(k->java_mirror() == NULL, "should only assign mirror once"); |
555 // Use this moment of initialization to cache modifier_flags also, | |
556 // to support Class.getModifiers(). Instance classes recalculate | |
557 // the cached flags after the class file is parsed, but before the | |
558 // class is put into the system dictionary. | |
559 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
560 k->set_modifier_flags(computed_modifiers); | |
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561 // Class_klass has to be loaded because it is used to allocate |
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562 // the mirror. |
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563 if (SystemDictionary::Class_klass_loaded()) { |
0 | 564 // Allocate mirror (java.lang.Class instance) |
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565 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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566 |
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567 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
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568 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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569 |
0 | 570 // It might also have a component mirror. This mirror must already exist. |
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571 if (k->oop_is_array()) { |
0 | 572 Handle comp_mirror; |
573 if (k->oop_is_typeArray()) { | |
6831
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coleenp
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574 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
0 | 575 comp_mirror = Universe::java_mirror(type); |
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576 } else { |
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577 assert(k->oop_is_objArray(), "Must be"); |
6831
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578 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
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579 assert(element_klass != NULL, "Must have an element klass"); |
6983 | 580 comp_mirror = element_klass->java_mirror(); |
0 | 581 } |
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582 assert(comp_mirror.not_null(), "must have a mirror"); |
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583 |
0 | 584 // Two-way link between the array klass and its component mirror: |
6831
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585 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
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586 set_array_klass(comp_mirror(), k()); |
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587 } else { |
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588 assert(k->oop_is_instance(), "Must be"); |
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589 |
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590 // Allocate a simple java object for a lock. |
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591 // This needs to be a java object because during class initialization |
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592 // it can be held across a java call. |
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593 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK_NULL); |
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594 set_init_lock(mirror(), r); |
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595 |
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|
596 // Set protection domain also |
16778
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Doug Simon <doug.simon@oracle.com>
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|
597 #ifdef GRAAL |
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598 if (k->class_loader() == SystemDictionary::graal_loader()) { |
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599 // Same protection domain as for classes loaded by the boot loader |
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600 protection_domain = Handle(); |
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601 } |
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602 #endif |
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603 set_protection_domain(mirror(), protection_domain()); |
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604 |
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605 // Initialize static fields |
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606 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 607 } |
608 return mirror(); | |
609 } else { | |
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610 if (fixup_mirror_list() == NULL) { |
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611 GrowableArray<Klass*>* list = |
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612 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
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613 set_fixup_mirror_list(list); |
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614 } |
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615 fixup_mirror_list()->push(k()); |
0 | 616 return NULL; |
617 } | |
618 } | |
619 | |
620 | |
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621 |
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622 int java_lang_Class::oop_size(oop java_class) { |
3938 | 623 assert(_oop_size_offset != 0, "must be set"); |
624 return java_class->int_field(_oop_size_offset); | |
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625 } |
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626 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 627 assert(_oop_size_offset != 0, "must be set"); |
628 java_class->int_field_put(_oop_size_offset, size); | |
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629 } |
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630 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 631 assert(_static_oop_field_count_offset != 0, "must be set"); |
632 return java_class->int_field(_static_oop_field_count_offset); | |
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633 } |
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634 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 635 assert(_static_oop_field_count_offset != 0, "must be set"); |
636 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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637 } |
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638 |
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639 oop java_lang_Class::protection_domain(oop java_class) { |
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640 assert(_protection_domain_offset != 0, "must be set"); |
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641 return java_class->obj_field(_protection_domain_offset); |
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642 } |
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643 void java_lang_Class::set_protection_domain(oop java_class, oop pd) { |
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644 assert(_protection_domain_offset != 0, "must be set"); |
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645 java_class->obj_field_put(_protection_domain_offset, pd); |
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646 } |
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647 |
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648 oop java_lang_Class::init_lock(oop java_class) { |
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649 assert(_init_lock_offset != 0, "must be set"); |
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650 return java_class->obj_field(_init_lock_offset); |
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651 } |
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652 void java_lang_Class::set_init_lock(oop java_class, oop init_lock) { |
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653 assert(_init_lock_offset != 0, "must be set"); |
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654 java_class->obj_field_put(_init_lock_offset, init_lock); |
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655 } |
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656 |
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657 objArrayOop java_lang_Class::signers(oop java_class) { |
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658 assert(_signers_offset != 0, "must be set"); |
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659 return (objArrayOop)java_class->obj_field(_signers_offset); |
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660 } |
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661 void java_lang_Class::set_signers(oop java_class, objArrayOop signers) { |
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662 assert(_signers_offset != 0, "must be set"); |
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663 java_class->obj_field_put(_signers_offset, (oop)signers); |
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664 } |
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665 |
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666 |
0 | 667 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
668 // This should be improved by adding a field at the Java level or by | |
669 // introducing a new VM klass (see comment in ClassFileParser) | |
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670 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
0 | 671 if (type != T_VOID) { |
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672 Klass* aklass = Universe::typeArrayKlassObj(type); |
0 | 673 assert(aklass != NULL, "correct bootstrap"); |
674 set_array_klass(java_class, aklass); | |
675 } | |
4009 | 676 #ifdef ASSERT |
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677 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 678 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
679 #endif | |
0 | 680 return java_class; |
681 } | |
682 | |
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683 Klass* java_lang_Class::as_Klass(oop java_class) { |
0 | 684 //%note memory_2 |
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685 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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686 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
0 | 687 assert(k == NULL || k->is_klass(), "type check"); |
688 return k; | |
689 } | |
690 | |
691 | |
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692 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
4009 | 693 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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694 java_class->metadata_field_put(_klass_offset, klass); |
4009 | 695 } |
696 | |
697 | |
665
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698 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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699 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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700 Symbol* name = NULL; |
665
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701 bool is_instance = false; |
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702 if (is_primitive(java_class)) { |
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703 name = vmSymbols::type_signature(primitive_type(java_class)); |
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704 } else { |
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705 Klass* k = as_Klass(java_class); |
6983 | 706 is_instance = k->oop_is_instance(); |
707 name = k->name(); | |
665
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708 } |
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709 if (name == NULL) { |
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710 st->print("<null>"); |
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711 return; |
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712 } |
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713 if (is_instance) st->print("L"); |
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714 st->write((char*) name->base(), (int) name->utf8_length()); |
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715 if (is_instance) st->print(";"); |
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716 } |
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717 |
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718 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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719 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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720 Symbol* name; |
665
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721 if (is_primitive(java_class)) { |
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722 name = vmSymbols::type_signature(primitive_type(java_class)); |
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723 // Because this can create a new symbol, the caller has to decrement |
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724 // the refcount, so make adjustment here and below for symbols returned |
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725 // that are not created or incremented due to a successful lookup. |
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726 name->increment_refcount(); |
665
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727 } else { |
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728 Klass* k = as_Klass(java_class); |
6983 | 729 if (!k->oop_is_instance()) { |
730 name = k->name(); | |
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731 name->increment_refcount(); |
665
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732 } else { |
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733 ResourceMark rm; |
6983 | 734 const char* sigstr = k->signature_name(); |
665
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735 int siglen = (int) strlen(sigstr); |
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736 if (!intern_if_not_found) { |
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737 name = SymbolTable::probe(sigstr, siglen); |
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738 } else { |
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739 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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740 } |
665
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741 } |
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742 } |
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743 return name; |
665
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744 } |
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745 |
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746 |
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747 Klass* java_lang_Class::array_klass(oop java_class) { |
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748 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
6983 | 749 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
0 | 750 return k; |
751 } | |
752 | |
753 | |
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754 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
6983 | 755 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
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756 java_class->metadata_field_put(_array_klass_offset, klass); |
0 | 757 } |
758 | |
759 | |
760 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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761 // should assert: |
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762 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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763 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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764 |
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765 #ifdef ASSERT |
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766 if (is_primitive) { |
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767 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
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768 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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769 "Should be either the T_VOID primitive or a java primitive"); |
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770 } |
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771 #endif |
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772 |
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773 return is_primitive; |
0 | 774 } |
775 | |
776 | |
777 BasicType java_lang_Class::primitive_type(oop java_class) { | |
778 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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779 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
0 | 780 BasicType type = T_VOID; |
781 if (ak != NULL) { | |
782 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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783 type = ArrayKlass::cast(ak)->element_type(); |
0 | 784 } else { |
785 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
786 } | |
787 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
788 return type; | |
789 } | |
790 | |
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791 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
665
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792 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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793 if (is_primitive(java_class)) { |
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794 if (reference_klass != NULL) |
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795 (*reference_klass) = NULL; |
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796 return primitive_type(java_class); |
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797 } else { |
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798 if (reference_klass != NULL) |
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799 (*reference_klass) = as_Klass(java_class); |
665
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800 return T_OBJECT; |
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801 } |
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802 } |
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803 |
0 | 804 |
805 oop java_lang_Class::primitive_mirror(BasicType t) { | |
806 oop mirror = Universe::java_mirror(t); | |
1142 | 807 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 808 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
809 return mirror; | |
810 } | |
811 | |
812 bool java_lang_Class::offsets_computed = false; | |
813 int java_lang_Class::classRedefinedCount_offset = -1; | |
814 | |
815 void java_lang_Class::compute_offsets() { | |
816 assert(!offsets_computed, "offsets should be initialized only once"); | |
817 offsets_computed = true; | |
818 | |
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819 Klass* klass_oop = SystemDictionary::Class_klass(); |
0 | 820 // The classRedefinedCount field is only present starting in 1.5, |
821 // so don't go fatal. | |
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822 compute_optional_offset(classRedefinedCount_offset, |
3938 | 823 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
824 | |
825 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 826 } |
827 | |
828 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
829 if (!JDK_Version::is_gte_jdk15x_version() | |
830 || classRedefinedCount_offset == -1) { | |
831 // The classRedefinedCount field is only present starting in 1.5. | |
832 // If we don't have an offset for it then just return -1 as a marker. | |
833 return -1; | |
834 } | |
835 | |
836 return the_class_mirror->int_field(classRedefinedCount_offset); | |
837 } | |
838 | |
839 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
840 if (!JDK_Version::is_gte_jdk15x_version() | |
841 || classRedefinedCount_offset == -1) { | |
842 // The classRedefinedCount field is only present starting in 1.5. | |
843 // If we don't have an offset for it then nothing to set. | |
844 return; | |
845 } | |
846 | |
847 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
848 } | |
849 | |
850 | |
851 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
852 // platform thread structure, and a eetop offset which was used for thread | |
853 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
854 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
855 // instead of the privateInfo_offset. | |
856 // | |
857 // Note: The stackSize field is only present starting in 1.4. | |
858 | |
859 int java_lang_Thread::_name_offset = 0; | |
860 int java_lang_Thread::_group_offset = 0; | |
861 int java_lang_Thread::_contextClassLoader_offset = 0; | |
862 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
863 int java_lang_Thread::_priority_offset = 0; | |
864 int java_lang_Thread::_eetop_offset = 0; | |
865 int java_lang_Thread::_daemon_offset = 0; | |
866 int java_lang_Thread::_stillborn_offset = 0; | |
867 int java_lang_Thread::_stackSize_offset = 0; | |
868 int java_lang_Thread::_tid_offset = 0; | |
869 int java_lang_Thread::_thread_status_offset = 0; | |
870 int java_lang_Thread::_park_blocker_offset = 0; | |
871 int java_lang_Thread::_park_event_offset = 0 ; | |
872 | |
873 | |
874 void java_lang_Thread::compute_offsets() { | |
875 assert(_group_offset == 0, "offsets should be initialized only once"); | |
876 | |
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877 Klass* k = SystemDictionary::Thread_klass(); |
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878 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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879 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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880 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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881 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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882 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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883 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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884 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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885 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 886 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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887 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 888 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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889 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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890 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 891 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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892 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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893 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 894 vmSymbols::long_signature()); |
895 } | |
896 | |
897 | |
898 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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899 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 900 } |
901 | |
902 | |
903 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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904 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 905 } |
906 | |
907 | |
908 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
909 oop name = java_thread->obj_field(_name_offset); | |
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910 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
0 | 911 return typeArrayOop(name); |
912 } | |
913 | |
914 | |
915 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
916 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
917 java_thread->obj_field_put(_name_offset, name); | |
918 } | |
919 | |
920 | |
921 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
922 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
923 } | |
924 | |
925 | |
926 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
927 java_thread->int_field_put(_priority_offset, priority); | |
928 } | |
929 | |
930 | |
931 oop java_lang_Thread::threadGroup(oop java_thread) { | |
932 return java_thread->obj_field(_group_offset); | |
933 } | |
934 | |
935 | |
936 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
937 return java_thread->bool_field(_stillborn_offset) != 0; | |
938 } | |
939 | |
940 | |
941 // We never have reason to turn the stillborn bit off | |
942 void java_lang_Thread::set_stillborn(oop java_thread) { | |
943 java_thread->bool_field_put(_stillborn_offset, true); | |
944 } | |
945 | |
946 | |
947 bool java_lang_Thread::is_alive(oop java_thread) { | |
948 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
949 return (thr != NULL); | |
950 } | |
951 | |
952 | |
953 bool java_lang_Thread::is_daemon(oop java_thread) { | |
954 return java_thread->bool_field(_daemon_offset) != 0; | |
955 } | |
956 | |
957 | |
958 void java_lang_Thread::set_daemon(oop java_thread) { | |
959 java_thread->bool_field_put(_daemon_offset, true); | |
960 } | |
961 | |
962 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
963 return java_thread->obj_field(_contextClassLoader_offset); | |
964 } | |
965 | |
966 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
967 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
968 } | |
969 | |
970 | |
971 jlong java_lang_Thread::stackSize(oop java_thread) { | |
972 // The stackSize field is only present starting in 1.4 | |
973 if (_stackSize_offset > 0) { | |
974 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
975 return java_thread->long_field(_stackSize_offset); | |
976 } else { | |
977 return 0; | |
978 } | |
979 } | |
980 | |
981 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
982 void java_lang_Thread::set_thread_status(oop java_thread, | |
983 java_lang_Thread::ThreadStatus status) { | |
984 // The threadStatus is only present starting in 1.5 | |
985 if (_thread_status_offset > 0) { | |
986 java_thread->int_field_put(_thread_status_offset, status); | |
987 } | |
988 } | |
989 | |
990 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
991 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
10405 | 992 assert(Thread::current()->is_Watcher_thread() || Thread::current()->is_VM_thread() || |
0 | 993 JavaThread::current()->thread_state() == _thread_in_vm, |
994 "Java Thread is not running in vm"); | |
995 // The threadStatus is only present starting in 1.5 | |
996 if (_thread_status_offset > 0) { | |
997 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
998 } else { | |
999 // All we can easily figure out is if it is alive, but that is | |
1000 // enough info for a valid unknown status. | |
1001 // These aren't restricted to valid set ThreadStatus values, so | |
1002 // use JVMTI values and cast. | |
1003 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
1004 if (thr == NULL) { | |
1005 // the thread hasn't run yet or is in the process of exiting | |
1006 return NEW; | |
1007 } | |
1008 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
1009 } | |
1010 } | |
1011 | |
1012 | |
1013 jlong java_lang_Thread::thread_id(oop java_thread) { | |
1014 // The thread ID field is only present starting in 1.5 | |
1015 if (_tid_offset > 0) { | |
1016 return java_thread->long_field(_tid_offset); | |
1017 } else { | |
1018 return 0; | |
1019 } | |
1020 } | |
1021 | |
1022 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 1023 assert(JDK_Version::current().supports_thread_park_blocker() && |
1024 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 1025 |
1026 if (_park_blocker_offset > 0) { | |
1027 return java_thread->obj_field(_park_blocker_offset); | |
1028 } | |
1029 | |
1030 return NULL; | |
1031 } | |
1032 | |
1033 jlong java_lang_Thread::park_event(oop java_thread) { | |
1034 if (_park_event_offset > 0) { | |
1035 return java_thread->long_field(_park_event_offset); | |
1036 } | |
1037 return 0; | |
1038 } | |
1039 | |
1040 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
1041 if (_park_event_offset > 0) { | |
1042 java_thread->long_field_put(_park_event_offset, ptr); | |
1043 return true; | |
1044 } | |
1045 return false; | |
1046 } | |
1047 | |
1048 | |
1049 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
1050 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
1051 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
1052 switch (status) { | |
1053 case NEW : return "NEW"; | |
1054 case RUNNABLE : return "RUNNABLE"; | |
1055 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
1056 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
1057 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
1058 case PARKED : return "WAITING (parking)"; | |
1059 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
1060 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
1061 case TERMINATED : return "TERMINATED"; | |
1062 default : return "UNKNOWN"; | |
1063 }; | |
1064 } | |
1065 int java_lang_ThreadGroup::_parent_offset = 0; | |
1066 int java_lang_ThreadGroup::_name_offset = 0; | |
1067 int java_lang_ThreadGroup::_threads_offset = 0; | |
1068 int java_lang_ThreadGroup::_groups_offset = 0; | |
1069 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
1070 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
1071 int java_lang_ThreadGroup::_daemon_offset = 0; | |
1072 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
1073 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
1074 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
1075 | |
1076 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
1077 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1078 return java_thread_group->obj_field(_parent_offset); | |
1079 } | |
1080 | |
1081 // ("name as oop" accessor is not necessary) | |
1082 | |
1083 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
1084 oop name = java_thread_group->obj_field(_name_offset); | |
1085 // ThreadGroup.name can be null | |
1086 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
1087 } | |
1088 | |
1089 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
1090 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1091 return java_thread_group->int_field(_nthreads_offset); | |
1092 } | |
1093 | |
1094 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
1095 oop threads = java_thread_group->obj_field(_threads_offset); | |
1096 assert(threads != NULL, "threadgroups should have threads"); | |
1097 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1098 return objArrayOop(threads); | |
1099 } | |
1100 | |
1101 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1102 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1103 return java_thread_group->int_field(_ngroups_offset); | |
1104 } | |
1105 | |
1106 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1107 oop groups = java_thread_group->obj_field(_groups_offset); | |
1108 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1109 return objArrayOop(groups); | |
1110 } | |
1111 | |
1112 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1113 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1114 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1115 } | |
1116 | |
1117 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1118 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1119 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1120 } | |
1121 | |
1122 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1123 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1124 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1125 } | |
1126 | |
1127 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1128 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1129 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1130 } | |
1131 | |
1132 void java_lang_ThreadGroup::compute_offsets() { | |
1133 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1134 | |
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1135 Klass* k = SystemDictionary::ThreadGroup_klass(); |
0 | 1136 |
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1137 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1138 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1139 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1140 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1141 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1142 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1143 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1144 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1145 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1146 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1147 } |
1148 | |
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1149 oop java_lang_Throwable::unassigned_stacktrace() { |
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1150 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1151 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1152 if (UseCompressedOops) { |
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1153 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1154 } else { |
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1155 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1156 } |
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1157 } |
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1158 |
0 | 1159 oop java_lang_Throwable::backtrace(oop throwable) { |
1160 return throwable->obj_field_acquire(backtrace_offset); | |
1161 } | |
1162 | |
1163 | |
1164 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1165 throwable->release_obj_field_put(backtrace_offset, value); | |
1166 } | |
1167 | |
1168 | |
1169 oop java_lang_Throwable::message(oop throwable) { | |
1170 return throwable->obj_field(detailMessage_offset); | |
1171 } | |
1172 | |
1173 | |
1174 oop java_lang_Throwable::message(Handle throwable) { | |
1175 return throwable->obj_field(detailMessage_offset); | |
1176 } | |
1177 | |
1178 | |
1179 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1180 throwable->obj_field_put(detailMessage_offset, value); | |
1181 } | |
1182 | |
1183 | |
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1184 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1185 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1186 } |
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1187 |
0 | 1188 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1189 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1190 set_stacktrace(throwable, NULL); |
0 | 1191 } |
1192 | |
1193 | |
1194 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1195 ResourceMark rm; | |
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1196 Klass* k = throwable->klass(); |
0 | 1197 assert(k != NULL, "just checking"); |
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1198 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1199 oop msg = message(throwable); |
1200 if (msg != NULL) { | |
1201 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1202 } | |
1203 } | |
1204 | |
1205 | |
1206 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1207 ResourceMark rm; | |
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1208 Klass* k = throwable->klass(); |
0 | 1209 assert(k != NULL, "just checking"); |
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1210 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1211 oop msg = message(throwable); |
1212 if (msg != NULL) { | |
1213 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1214 } | |
1215 } | |
1216 | |
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1217 // After this many redefines, the stack trace is unreliable. |
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1218 const int MAX_VERSION = USHRT_MAX; |
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1219 |
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1220 // Helper backtrace functions to store bci|version together. |
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1221 static inline int merge_bci_and_version(int bci, int version) { |
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1222 // only store u2 for version, checking for overflow. |
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1223 if (version > USHRT_MAX || version < 0) version = MAX_VERSION; |
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1224 assert((jushort)bci == bci, "bci should be short"); |
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1225 return build_int_from_shorts(version, bci); |
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1226 } |
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1227 |
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1228 static inline int bci_at(unsigned int merged) { |
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1229 return extract_high_short_from_int(merged); |
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1230 } |
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1231 static inline int version_at(unsigned int merged) { |
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1232 return extract_low_short_from_int(merged); |
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1233 } |
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1234 |
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1235 static inline bool version_matches(Method* method, int version) { |
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1236 return (method->constants()->version() == version && version < MAX_VERSION); |
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1237 } |
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1238 |
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1239 static inline int get_line_number(Method* method, int bci) { |
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1240 int line_number = 0; |
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1241 if (method->is_native()) { |
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1242 // Negative value different from -1 below, enabling Java code in |
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1243 // class java.lang.StackTraceElement to distinguish "native" from |
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1244 // "no LineNumberTable". JDK tests for -2. |
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1245 line_number = -2; |
0 | 1246 } else { |
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1247 // Returns -1 if no LineNumberTable, and otherwise actual line number |
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1248 line_number = method->line_number_from_bci(bci); |
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1249 if (line_number == -1 && ShowHiddenFrames) { |
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1250 line_number = bci + 1000000; |
0 | 1251 } |
1252 } | |
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1253 return line_number; |
0 | 1254 } |
1255 | |
1256 // This class provides a simple wrapper over the internal structure of | |
1257 // exception backtrace to insulate users of the backtrace from needing | |
1258 // to know what it looks like. | |
1259 class BacktraceBuilder: public StackObj { | |
1260 private: | |
1261 Handle _backtrace; | |
1262 objArrayOop _head; | |
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1263 typeArrayOop _methods; |
0 | 1264 typeArrayOop _bcis; |
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1265 objArrayOop _mirrors; |
0 | 1266 int _index; |
1267 No_Safepoint_Verifier _nsv; | |
1268 | |
1269 public: | |
1270 | |
1271 enum { | |
1272 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
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1273 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, |
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1274 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
0 | 1275 trace_next_offset = java_lang_Throwable::trace_next_offset, |
1276 trace_size = java_lang_Throwable::trace_size, | |
1277 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1278 }; | |
1279 | |
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1280 // get info out of chunks |
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1281 static typeArrayOop get_methods(objArrayHandle chunk) { |
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1282 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
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1283 assert(methods != NULL, "method array should be initialized in backtrace"); |
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1284 return methods; |
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1285 } |
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1286 static typeArrayOop get_bcis(objArrayHandle chunk) { |
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1287 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
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1288 assert(bcis != NULL, "bci array should be initialized in backtrace"); |
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1289 return bcis; |
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1290 } |
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1291 static objArrayOop get_mirrors(objArrayHandle chunk) { |
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1292 objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset)); |
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1293 assert(mirrors != NULL, "mirror array should be initialized in backtrace"); |
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1294 return mirrors; |
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1295 } |
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1296 |
0 | 1297 // constructor for new backtrace |
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1298 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
0 | 1299 expand(CHECK); |
1300 _backtrace = _head; | |
1301 _index = 0; | |
1302 } | |
1303 | |
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1304 BacktraceBuilder(objArrayHandle backtrace) { |
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1305 _methods = get_methods(backtrace); |
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1306 _bcis = get_bcis(backtrace); |
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1307 _mirrors = get_mirrors(backtrace); |
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1308 assert(_methods->length() == _bcis->length() && |
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1309 _methods->length() == _mirrors->length(), |
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1310 "method and source information arrays should match"); |
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1311 |
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1312 // head is the preallocated backtrace |
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1313 _backtrace = _head = backtrace(); |
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1314 _index = 0; |
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1315 } |
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1316 |
0 | 1317 void expand(TRAPS) { |
1318 objArrayHandle old_head(THREAD, _head); | |
1319 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1320 | |
1321 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1322 objArrayHandle new_head(THREAD, head); | |
1323 | |
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1324 typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
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1325 typeArrayHandle new_methods(THREAD, methods); |
0 | 1326 |
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1327 typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK); |
0 | 1328 typeArrayHandle new_bcis(THREAD, bcis); |
1329 | |
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1330 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1331 objArrayHandle new_mirrors(THREAD, mirrors); |
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1332 |
0 | 1333 if (!old_head.is_null()) { |
1334 old_head->obj_at_put(trace_next_offset, new_head()); | |
1335 } | |
1336 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1337 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
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1338 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
0 | 1339 |
1340 _head = new_head(); | |
1341 _methods = new_methods(); | |
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1342 _bcis = new_bcis(); |
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1343 _mirrors = new_mirrors(); |
0 | 1344 _index = 0; |
1345 } | |
1346 | |
1347 oop backtrace() { | |
1348 return _backtrace(); | |
1349 } | |
1350 | |
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1351 inline void push(Method* method, int bci, TRAPS) { |
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1352 // Smear the -1 bci to 0 since the array only holds unsigned |
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1353 // shorts. The later line number lookup would just smear the -1 |
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1354 // to a 0 even if it could be recorded. |
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1355 if (bci == SynchronizationEntryBCI) bci = 0; |
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1356 |
0 | 1357 if (_index >= trace_chunk_size) { |
1358 methodHandle mhandle(THREAD, method); | |
1359 expand(CHECK); | |
1360 method = mhandle(); | |
1361 } | |
1362 | |
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1363 _methods->short_at_put(_index, method->method_idnum()); |
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1364 _bcis->int_at_put(_index, merge_bci_and_version(bci, method->constants()->version())); |
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1365 |
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1366 // We need to save the mirrors in the backtrace to keep the class |
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1367 // from being unloaded while we still have this stack trace. |
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1368 assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror"); |
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1369 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
0 | 1370 _index++; |
1371 } | |
1372 | |
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1373 }; |
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1374 |
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1375 // Print stack trace element to resource allocated buffer |
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1376 char* java_lang_Throwable::print_stack_element_to_buffer(Handle mirror, |
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1377 int method_id, int version, int bci) { |
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1378 |
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1379 // Get strings and string lengths |
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1380 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1381 const char* klass_name = holder->external_name(); |
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1382 int buf_len = (int)strlen(klass_name); |
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1383 |
12810
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1384 // The method id may point to an obsolete method, can't get more stack information |
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1385 Method* method = holder->method_with_idnum(method_id); |
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1386 if (method == NULL) { |
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1387 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1388 // This is what the java code prints in this case - added Redefined |
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1389 sprintf(buf, "\tat %s.null (Redefined)", klass_name); |
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1390 return buf; |
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1391 } |
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1392 |
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1393 char* method_name = method->name()->as_C_string(); |
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1394 buf_len += (int)strlen(method_name); |
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1395 |
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1396 char* source_file_name = NULL; |
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1397 if (version_matches(method, version)) { |
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1398 Symbol* source = holder->source_file_name(); |
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1399 if (source != NULL) { |
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1400 source_file_name = source->as_C_string(); |
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1401 buf_len += (int)strlen(source_file_name); |
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1402 } |
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1403 } |
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1404 |
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1405 // Allocate temporary buffer with extra space for formatting and line number |
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1406 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
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1407 |
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1408 // Print stack trace line in buffer |
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1409 sprintf(buf, "\tat %s.%s", klass_name, method_name); |
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1410 |
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1411 if (!version_matches(method, version)) { |
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1412 strcat(buf, "(Redefined)"); |
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1413 } else { |
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1414 int line_number = get_line_number(method, bci); |
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1415 if (line_number == -2) { |
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1416 strcat(buf, "(Native Method)"); |
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1417 } else { |
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1418 if (source_file_name != NULL && (line_number != -1)) { |
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1419 // Sourcename and linenumber |
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1420 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); |
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1421 } else if (source_file_name != NULL) { |
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1422 // Just sourcename |
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1423 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); |
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1424 } else { |
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1425 // Neither sourcename nor linenumber |
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1426 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); |
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1427 } |
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1428 nmethod* nm = method->code(); |
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1429 if (WizardMode && nm != NULL) { |
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1430 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
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1431 } |
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1432 } |
0 | 1433 } |
1434 | |
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1435 return buf; |
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1436 } |
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1437 |
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1438 void java_lang_Throwable::print_stack_element(outputStream *st, Handle mirror, |
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1439 int method_id, int version, int bci) { |
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1440 ResourceMark rm; |
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1441 char* buf = print_stack_element_to_buffer(mirror, method_id, version, bci); |
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1442 st->print_cr("%s", buf); |
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1443 } |
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1444 |
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1445 void java_lang_Throwable::print_stack_element(outputStream *st, methodHandle method, int bci) { |
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1446 Handle mirror = method->method_holder()->java_mirror(); |
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1447 int method_id = method->method_idnum(); |
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1448 int version = method->constants()->version(); |
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1449 print_stack_element(st, mirror, method_id, version, bci); |
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1450 } |
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1451 |
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1452 const char* java_lang_Throwable::no_stack_trace_message() { |
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1453 return "\t<<no stack trace available>>"; |
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1454 } |
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1455 |
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1456 |
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1457 // Currently used only for exceptions occurring during startup |
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1458 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { |
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1459 Thread *THREAD = Thread::current(); |
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1460 Handle h_throwable(THREAD, throwable); |
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1461 while (h_throwable.not_null()) { |
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1462 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); |
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1463 if (result.is_null()) { |
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1464 st->print_cr(no_stack_trace_message()); |
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1465 return; |
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1466 } |
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1467 |
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1468 while (result.not_null()) { |
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1469 |
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1470 // Get method id, bci, version and mirror from chunk |
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1471 typeArrayHandle methods (THREAD, BacktraceBuilder::get_methods(result)); |
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1472 typeArrayHandle bcis (THREAD, BacktraceBuilder::get_bcis(result)); |
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1473 objArrayHandle mirrors (THREAD, BacktraceBuilder::get_mirrors(result)); |
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1474 |
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1475 int length = methods()->length(); |
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1476 for (int index = 0; index < length; index++) { |
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1477 Handle mirror(THREAD, mirrors->obj_at(index)); |
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1478 // NULL mirror means end of stack trace |
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1479 if (mirror.is_null()) goto handle_cause; |
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1480 int method = methods->short_at(index); |
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1481 int version = version_at(bcis->int_at(index)); |
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1482 int bci = bci_at(bcis->int_at(index)); |
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1483 print_stack_element(st, mirror, method, version, bci); |
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1484 } |
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1485 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); |
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1486 } |
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1487 handle_cause: |
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1488 { |
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1489 EXCEPTION_MARK; |
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1490 JavaValue cause(T_OBJECT); |
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1491 JavaCalls::call_virtual(&cause, |
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1492 h_throwable, |
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1493 KlassHandle(THREAD, h_throwable->klass()), |
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1494 vmSymbols::getCause_name(), |
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1495 vmSymbols::void_throwable_signature(), |
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1496 THREAD); |
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1497 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. |
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1498 if (HAS_PENDING_EXCEPTION) { |
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1499 CLEAR_PENDING_EXCEPTION; |
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1500 h_throwable = Handle(); |
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1501 } else { |
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1502 h_throwable = Handle(THREAD, (oop) cause.get_jobject()); |
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1503 if (h_throwable.not_null()) { |
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1504 st->print("Caused by: "); |
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1505 print(h_throwable, st); |
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1506 st->cr(); |
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1507 } |
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1508 } |
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1509 } |
0 | 1510 } |
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1511 } |
0 | 1512 |
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1513 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1514 if (!StackTraceInThrowable) return; |
1515 ResourceMark rm(THREAD); | |
1516 | |
1517 // Start out by clearing the backtrace for this object, in case the VM | |
1518 // runs out of memory while allocating the stack trace | |
1519 set_backtrace(throwable(), NULL); | |
1520 if (JDK_Version::is_gte_jdk14x_version()) { | |
1521 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1522 // refilling occurs | |
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1523 // This is unnecessary in 1.7+ but harmless |
0 | 1524 clear_stacktrace(throwable()); |
1525 } | |
1526 | |
1527 int max_depth = MaxJavaStackTraceDepth; | |
1528 JavaThread* thread = (JavaThread*)THREAD; | |
1529 BacktraceBuilder bt(CHECK); | |
1530 | |
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1531 // If there is no Java frame just return the method that was being called |
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1532 // with bci 0 |
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1533 if (!thread->has_last_Java_frame()) { |
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1534 if (max_depth >= 1 && method() != NULL) { |
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1535 bt.push(method(), 0, CHECK); |
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1536 set_backtrace(throwable(), bt.backtrace()); |
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1537 } |
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1538 return; |
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1539 } |
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1540 |
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1541 #ifdef GRAAL |
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1542 // Check for gpu exception to add as top frame |
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1543 Method* gpu_method = thread->get_gpu_exception_method(); |
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1544 if (gpu_method != NULL) { |
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1545 jint gpu_bci = thread->get_gpu_exception_bci(); |
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1546 bt.push(gpu_method, gpu_bci, CHECK); |
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1547 // Clear the gpu exception state, it is not used after here |
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1548 thread->set_gpu_exception_bci(0); |
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1549 thread->set_gpu_exception_method(NULL); |
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1550 } |
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1551 #endif |
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1552 |
0 | 1553 // Instead of using vframe directly, this version of fill_in_stack_trace |
1554 // basically handles everything by hand. This significantly improved the | |
1555 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1556 // See bug 6333838 for more details. | |
1557 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1558 // trace as utilizing vframe. | |
1559 #ifdef ASSERT | |
1560 vframeStream st(thread); | |
1561 methodHandle st_method(THREAD, st.method()); | |
1562 #endif | |
1563 int total_count = 0; | |
1564 RegisterMap map(thread, false); | |
1565 int decode_offset = 0; | |
1566 nmethod* nm = NULL; | |
1567 bool skip_fillInStackTrace_check = false; | |
1568 bool skip_throwableInit_check = false; | |
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1569 bool skip_hidden = !ShowHiddenFrames; |
0 | 1570 |
1571 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
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1572 Method* method = NULL; |
0 | 1573 int bci = 0; |
1574 | |
1575 // Compiled java method case. | |
1576 if (decode_offset != 0) { | |
1577 DebugInfoReadStream stream(nm, decode_offset); | |
1578 decode_offset = stream.read_int(); | |
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1579 method = (Method*)nm->metadata_at(stream.read_int()); |
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1580 bci = stream.read_bci(); |
0 | 1581 } else { |
1582 if (fr.is_first_frame()) break; | |
1583 address pc = fr.pc(); | |
1584 if (fr.is_interpreted_frame()) { | |
1585 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1586 method = fr.interpreter_frame_method(); | |
1587 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1588 fr = fr.sender(&map); | |
1589 } else { | |
1590 CodeBlob* cb = fr.cb(); | |
1591 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1592 // but non nmethod | |
1593 fr = fr.sender(&map); | |
1594 if (cb == NULL || !cb->is_nmethod()) { | |
1595 continue; | |
1596 } | |
1597 nm = (nmethod*)cb; | |
1598 if (nm->method()->is_native()) { | |
1599 method = nm->method(); | |
1600 bci = 0; | |
1601 } else { | |
1602 PcDesc* pd = nm->pc_desc_at(pc); | |
1603 decode_offset = pd->scope_decode_offset(); | |
1604 // if decode_offset is not equal to 0, it will execute the | |
1605 // "compiled java method case" at the beginning of the loop. | |
1606 continue; | |
1607 } | |
1608 } | |
1609 } | |
1610 #ifdef ASSERT | |
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1611 assert(st_method() == method && st.bci() == bci, |
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1612 "Wrong stack trace"); |
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1613 st.next(); |
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1614 // vframeStream::method isn't GC-safe so store off a copy |
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1615 // of the Method* in case we GC. |
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1616 if (!st.at_end()) { |
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1617 st_method = st.method(); |
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1618 } |
0 | 1619 #endif |
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1620 |
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1621 // the format of the stacktrace will be: |
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1622 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1623 // - 0 or more <init> methods for the exception class (skipped) |
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1624 // - rest of the stack |
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1625 |
0 | 1626 if (!skip_fillInStackTrace_check) { |
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1627 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1628 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1629 throwable->is_a(method->method_holder())) { |
0 | 1630 continue; |
1631 } | |
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1632 else { |
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1633 skip_fillInStackTrace_check = true; // gone past them all |
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1634 } |
0 | 1635 } |
1636 if (!skip_throwableInit_check) { | |
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1637 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1638 |
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1639 // skip <init> methods of the exception class and superclasses |
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1640 // This is simlar to classic VM. |
0 | 1641 if (method->name() == vmSymbols::object_initializer_name() && |
1642 throwable->is_a(method->method_holder())) { | |
1643 continue; | |
1644 } else { | |
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1645 // there are none or we've seen them all - either way stop checking |
0 | 1646 skip_throwableInit_check = true; |
1647 } | |
1648 } | |
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1649 if (method->is_hidden()) { |
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1650 if (skip_hidden) continue; |
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1651 } |
0 | 1652 bt.push(method, bci, CHECK); |
1653 total_count++; | |
1654 } | |
1655 | |
1656 // Put completed stack trace into throwable object | |
1657 set_backtrace(throwable(), bt.backtrace()); | |
1658 } | |
1659 | |
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1660 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1661 // No-op if stack trace is disabled |
1662 if (!StackTraceInThrowable) { | |
1663 return; | |
1664 } | |
1665 | |
1666 // Disable stack traces for some preallocated out of memory errors | |
1667 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1668 return; | |
1669 } | |
1670 | |
1671 PRESERVE_EXCEPTION_MARK; | |
1672 | |
1673 JavaThread* thread = JavaThread::active(); | |
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1674 fill_in_stack_trace(throwable, method, thread); |
0 | 1675 // ignore exceptions thrown during stack trace filling |
1676 CLEAR_PENDING_EXCEPTION; | |
1677 } | |
1678 | |
1679 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1680 // Allocate stack trace - backtrace is created but not filled in | |
1681 | |
1682 // No-op if stack trace is disabled | |
1683 if (!StackTraceInThrowable) return; | |
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1684 BacktraceBuilder bt(CHECK); // creates a backtrace |
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1685 set_backtrace(throwable(), bt.backtrace()); |
0 | 1686 } |
1687 | |
1688 | |
1689 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1690 // Fill in stack trace into preallocated backtrace (no GC) | |
1691 | |
1692 // No-op if stack trace is disabled | |
1693 if (!StackTraceInThrowable) return; | |
1694 | |
1142 | 1695 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1696 |
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1697 JavaThread* THREAD = JavaThread::current(); |
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1698 |
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1699 objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable())); |
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1700 assert(backtrace.not_null(), "backtrace should have been preallocated"); |
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1701 |
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1702 ResourceMark rm(THREAD); |
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1703 vframeStream st(THREAD); |
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1704 |
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1705 BacktraceBuilder bt(backtrace); |
0 | 1706 |
1707 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1708 // methods as preallocated errors aren't created by "java" code. | |
1709 | |
1710 // fill in as much stack trace as possible | |
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1711 typeArrayOop methods = BacktraceBuilder::get_methods(backtrace); |
0 | 1712 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); |
1713 int chunk_count = 0; | |
1714 | |
1715 for (;!st.at_end(); st.next()) { | |
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1716 bt.push(st.method(), st.bci(), CHECK); |
0 | 1717 chunk_count++; |
1718 | |
1719 // Bail-out for deep stacks | |
1720 if (chunk_count >= max_chunks) break; | |
1721 } | |
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1722 |
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1723 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1724 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1725 // can be removed in a JDK using this JVM version |
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1726 if (JDK_Version::is_gte_jdk17x_version()) { |
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1727 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1728 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1729 } |
0 | 1730 } |
1731 | |
1732 | |
1733 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1734 if (throwable == NULL) { | |
1735 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1736 } | |
1737 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1738 int depth = 0; | |
1739 if (chunk != NULL) { | |
1740 // Iterate over chunks and count full ones | |
1741 while (true) { | |
1742 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1743 if (next == NULL) break; | |
1744 depth += trace_chunk_size; | |
1745 chunk = next; | |
1746 } | |
1747 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
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1748 // Count element in remaining partial chunk. NULL value for mirror |
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1749 // marks the end of the stack trace elements that are saved. |
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1750 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1751 assert(mirrors != NULL, "sanity check"); |
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1752 for (int i = 0; i < mirrors->length(); i++) { |
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1753 if (mirrors->obj_at(i) == NULL) break; |
0 | 1754 depth++; |
1755 } | |
1756 } | |
1757 return depth; | |
1758 } | |
1759 | |
1760 | |
1761 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1762 if (throwable == NULL) { | |
1763 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1764 } | |
1765 if (index < 0) { | |
1766 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1767 } | |
1768 // Compute how many chunks to skip and index into actual chunk | |
1769 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1770 int skip_chunks = index / trace_chunk_size; | |
1771 int chunk_index = index % trace_chunk_size; | |
1772 while (chunk != NULL && skip_chunks > 0) { | |
1773 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1774 skip_chunks--; | |
1775 } | |
1776 if (chunk == NULL) { | |
1777 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1778 } | |
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1779 // Get method id, bci, version and mirror from chunk |
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1780 typeArrayOop methods = BacktraceBuilder::get_methods(chunk); |
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1781 typeArrayOop bcis = BacktraceBuilder::get_bcis(chunk); |
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1782 objArrayOop mirrors = BacktraceBuilder::get_mirrors(chunk); |
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1783 |
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1784 assert(methods != NULL && bcis != NULL && mirrors != NULL, "sanity check"); |
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1785 |
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1786 int method = methods->short_at(chunk_index); |
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1787 int version = version_at(bcis->int_at(chunk_index)); |
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1788 int bci = bci_at(bcis->int_at(chunk_index)); |
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1789 Handle mirror(THREAD, mirrors->obj_at(chunk_index)); |
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1790 |
0 | 1791 // Chunk can be partial full |
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1792 if (mirror.is_null()) { |
0 | 1793 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); |
1794 } | |
1795 | |
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1796 oop element = java_lang_StackTraceElement::create(mirror, method, version, bci, CHECK_0); |
0 | 1797 return element; |
1798 } | |
1799 | |
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1800 oop java_lang_StackTraceElement::create(Handle mirror, int method_id, |
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1801 int version, int bci, TRAPS) { |
0 | 1802 // Allocate java.lang.StackTraceElement instance |
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1803 Klass* k = SystemDictionary::StackTraceElement_klass(); |
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1804 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1805 instanceKlassHandle ik (THREAD, k); |
1806 if (ik->should_be_initialized()) { | |
1807 ik->initialize(CHECK_0); | |
1808 } | |
1809 | |
1810 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1811 // Fill in class name | |
1812 ResourceMark rm(THREAD); | |
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1813 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
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1814 const char* str = holder->external_name(); |
0 | 1815 oop classname = StringTable::intern((char*) str, CHECK_0); |
1816 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
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1817 |
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1818 Method* method = holder->method_with_idnum(method_id); |
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1819 // Method on stack may be obsolete because it was redefined so cannot be |
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1820 // found by idnum. |
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1821 if (method == NULL) { |
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1822 // leave name and fileName null |
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1823 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
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1824 return element(); |
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1825 } |
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1826 |
0 | 1827 // Fill in method name |
1828 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1829 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
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1830 |
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1831 if (!version_matches(method, version)) { |
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1832 // The method was redefined, accurate line number information isn't available |
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1833 java_lang_StackTraceElement::set_fileName(element(), NULL); |
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1834 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
0 | 1835 } else { |
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1836 // Fill in source file name and line number. |
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1837 Symbol* source = holder->source_file_name(); |
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1838 if (ShowHiddenFrames && source == NULL) |
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1839 source = vmSymbols::unknown_class_name(); |
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1840 oop filename = StringTable::intern(source, CHECK_0); |
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1841 java_lang_StackTraceElement::set_fileName(element(), filename); |
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1842 |
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1843 int line_number = get_line_number(method, bci); |
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1844 java_lang_StackTraceElement::set_lineNumber(element(), line_number); |
0 | 1845 } |
1846 return element(); | |
1847 } | |
1848 | |
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1849 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { |
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1850 Handle mirror (THREAD, method->method_holder()->java_mirror()); |
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1851 int method_id = method->method_idnum(); |
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1852 return create(mirror, method_id, method->constants()->version(), bci, THREAD); |
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1853 } |
0 | 1854 |
1855 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
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1856 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1857 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1858 } |
1859 | |
1860 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1861 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1862 return (jboolean) reflect->bool_field(override_offset); | |
1863 } | |
1864 | |
1865 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1866 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1867 reflect->bool_field_put(override_offset, (int) value); | |
1868 } | |
1869 | |
1870 void java_lang_reflect_Method::compute_offsets() { | |
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1871 Klass* k = SystemDictionary::reflect_Method_klass(); |
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1872 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1873 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1874 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1875 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1876 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1877 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1878 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1879 // The generic signature and annotations fields are only present in 1.5 |
1880 signature_offset = -1; | |
1881 annotations_offset = -1; | |
1882 parameter_annotations_offset = -1; | |
1883 annotation_default_offset = -1; | |
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1884 type_annotations_offset = -1; |
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1885 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1886 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1887 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1888 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
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1889 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1890 } |
1891 | |
1892 Handle java_lang_reflect_Method::create(TRAPS) { | |
1893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1894 Klass* klass = SystemDictionary::reflect_Method_klass(); |
0 | 1895 // This class is eagerly initialized during VM initialization, since we keep a refence |
1896 // to one of the methods | |
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1897 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1898 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
0 | 1899 } |
1900 | |
1901 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1902 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1903 return reflect->obj_field(clazz_offset); | |
1904 } | |
1905 | |
1906 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1907 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1908 reflect->obj_field_put(clazz_offset, value); | |
1909 } | |
1910 | |
1911 int java_lang_reflect_Method::slot(oop reflect) { | |
1912 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1913 return reflect->int_field(slot_offset); | |
1914 } | |
1915 | |
1916 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1917 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1918 reflect->int_field_put(slot_offset, value); | |
1919 } | |
1920 | |
1921 oop java_lang_reflect_Method::name(oop method) { | |
1922 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1923 return method->obj_field(name_offset); | |
1924 } | |
1925 | |
1926 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1927 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1928 method->obj_field_put(name_offset, value); | |
1929 } | |
1930 | |
1931 oop java_lang_reflect_Method::return_type(oop method) { | |
1932 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1933 return method->obj_field(returnType_offset); | |
1934 } | |
1935 | |
1936 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1937 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1938 method->obj_field_put(returnType_offset, value); | |
1939 } | |
1940 | |
1941 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1942 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1943 return method->obj_field(parameterTypes_offset); | |
1944 } | |
1945 | |
1946 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1947 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1948 method->obj_field_put(parameterTypes_offset, value); | |
1949 } | |
1950 | |
1951 oop java_lang_reflect_Method::exception_types(oop method) { | |
1952 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1953 return method->obj_field(exceptionTypes_offset); | |
1954 } | |
1955 | |
1956 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1957 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1958 method->obj_field_put(exceptionTypes_offset, value); | |
1959 } | |
1960 | |
1961 int java_lang_reflect_Method::modifiers(oop method) { | |
1962 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1963 return method->int_field(modifiers_offset); | |
1964 } | |
1965 | |
1966 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1967 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1968 method->int_field_put(modifiers_offset, value); | |
1969 } | |
1970 | |
1971 bool java_lang_reflect_Method::has_signature_field() { | |
1972 return (signature_offset >= 0); | |
1973 } | |
1974 | |
1975 oop java_lang_reflect_Method::signature(oop method) { | |
1976 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1977 assert(has_signature_field(), "signature field must be present"); | |
1978 return method->obj_field(signature_offset); | |
1979 } | |
1980 | |
1981 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1982 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1983 assert(has_signature_field(), "signature field must be present"); | |
1984 method->obj_field_put(signature_offset, value); | |
1985 } | |
1986 | |
1987 bool java_lang_reflect_Method::has_annotations_field() { | |
1988 return (annotations_offset >= 0); | |
1989 } | |
1990 | |
1991 oop java_lang_reflect_Method::annotations(oop method) { | |
1992 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1993 assert(has_annotations_field(), "annotations field must be present"); | |
1994 return method->obj_field(annotations_offset); | |
1995 } | |
1996 | |
1997 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1998 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1999 assert(has_annotations_field(), "annotations field must be present"); | |
2000 method->obj_field_put(annotations_offset, value); | |
2001 } | |
2002 | |
2003 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
2004 return (parameter_annotations_offset >= 0); | |
2005 } | |
2006 | |
2007 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
2008 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2009 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2010 return method->obj_field(parameter_annotations_offset); | |
2011 } | |
2012 | |
2013 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
2014 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2015 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2016 method->obj_field_put(parameter_annotations_offset, value); | |
2017 } | |
2018 | |
2019 bool java_lang_reflect_Method::has_annotation_default_field() { | |
2020 return (annotation_default_offset >= 0); | |
2021 } | |
2022 | |
2023 oop java_lang_reflect_Method::annotation_default(oop method) { | |
2024 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2025 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2026 return method->obj_field(annotation_default_offset); | |
2027 } | |
2028 | |
2029 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
2030 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2031 assert(has_annotation_default_field(), "annotation default field must be present"); | |
2032 method->obj_field_put(annotation_default_offset, value); | |
2033 } | |
2034 | |
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2035 bool java_lang_reflect_Method::has_type_annotations_field() { |
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2036 return (type_annotations_offset >= 0); |
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2037 } |
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2038 |
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2039 oop java_lang_reflect_Method::type_annotations(oop method) { |
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2040 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2041 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2042 return method->obj_field(type_annotations_offset); |
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2043 } |
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2044 |
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2045 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { |
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2046 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2047 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2048 method->obj_field_put(type_annotations_offset, value); |
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2049 } |
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2050 |
0 | 2051 void java_lang_reflect_Constructor::compute_offsets() { |
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2052 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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2053 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2054 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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2055 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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2056 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2057 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2058 // The generic signature and annotations fields are only present in 1.5 |
2059 signature_offset = -1; | |
2060 annotations_offset = -1; | |
2061 parameter_annotations_offset = -1; | |
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2062 type_annotations_offset = -1; |
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2063 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2064 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2065 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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2066 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2067 } |
2068 | |
2069 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
2070 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2071 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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2072 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2073 instanceKlassHandle klass (THREAD, k); |
2074 // Ensure it is initialized | |
2075 klass->initialize(CHECK_NH); | |
2076 return klass->allocate_instance_handle(CHECK_NH); | |
2077 } | |
2078 | |
2079 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
2080 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2081 return reflect->obj_field(clazz_offset); | |
2082 } | |
2083 | |
2084 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
2085 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2086 reflect->obj_field_put(clazz_offset, value); | |
2087 } | |
2088 | |
2089 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
2090 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2091 return constructor->obj_field(parameterTypes_offset); | |
2092 } | |
2093 | |
2094 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
2095 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2096 constructor->obj_field_put(parameterTypes_offset, value); | |
2097 } | |
2098 | |
2099 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
2100 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2101 return constructor->obj_field(exceptionTypes_offset); | |
2102 } | |
2103 | |
2104 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
2105 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2106 constructor->obj_field_put(exceptionTypes_offset, value); | |
2107 } | |
2108 | |
2109 int java_lang_reflect_Constructor::slot(oop reflect) { | |
2110 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2111 return reflect->int_field(slot_offset); | |
2112 } | |
2113 | |
2114 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
2115 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2116 reflect->int_field_put(slot_offset, value); | |
2117 } | |
2118 | |
2119 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
2120 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2121 return constructor->int_field(modifiers_offset); | |
2122 } | |
2123 | |
2124 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
2125 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2126 constructor->int_field_put(modifiers_offset, value); | |
2127 } | |
2128 | |
2129 bool java_lang_reflect_Constructor::has_signature_field() { | |
2130 return (signature_offset >= 0); | |
2131 } | |
2132 | |
2133 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
2134 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2135 assert(has_signature_field(), "signature field must be present"); | |
2136 return constructor->obj_field(signature_offset); | |
2137 } | |
2138 | |
2139 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
2140 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2141 assert(has_signature_field(), "signature field must be present"); | |
2142 constructor->obj_field_put(signature_offset, value); | |
2143 } | |
2144 | |
2145 bool java_lang_reflect_Constructor::has_annotations_field() { | |
2146 return (annotations_offset >= 0); | |
2147 } | |
2148 | |
2149 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
2150 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2151 assert(has_annotations_field(), "annotations field must be present"); | |
2152 return constructor->obj_field(annotations_offset); | |
2153 } | |
2154 | |
2155 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
2156 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2157 assert(has_annotations_field(), "annotations field must be present"); | |
2158 constructor->obj_field_put(annotations_offset, value); | |
2159 } | |
2160 | |
2161 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
2162 return (parameter_annotations_offset >= 0); | |
2163 } | |
2164 | |
2165 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
2166 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2167 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2168 return method->obj_field(parameter_annotations_offset); | |
2169 } | |
2170 | |
2171 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
2172 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2173 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2174 method->obj_field_put(parameter_annotations_offset, value); | |
2175 } | |
2176 | |
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2177 bool java_lang_reflect_Constructor::has_type_annotations_field() { |
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2178 return (type_annotations_offset >= 0); |
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2179 } |
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2180 |
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2181 oop java_lang_reflect_Constructor::type_annotations(oop constructor) { |
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2182 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2183 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2184 return constructor->obj_field(type_annotations_offset); |
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2185 } |
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2186 |
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2187 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { |
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2188 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2189 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2190 constructor->obj_field_put(type_annotations_offset, value); |
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2191 } |
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2192 |
0 | 2193 void java_lang_reflect_Field::compute_offsets() { |
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2194 Klass* k = SystemDictionary::reflect_Field_klass(); |
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2195 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2196 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2197 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2198 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2199 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2200 // The generic signature and annotations fields are only present in 1.5 |
2201 signature_offset = -1; | |
2202 annotations_offset = -1; | |
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2203 type_annotations_offset = -1; |
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2204 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2205 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2206 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2207 } |
2208 | |
2209 Handle java_lang_reflect_Field::create(TRAPS) { | |
2210 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2211 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2212 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2213 instanceKlassHandle klass (THREAD, k); |
2214 // Ensure it is initialized | |
2215 klass->initialize(CHECK_NH); | |
2216 return klass->allocate_instance_handle(CHECK_NH); | |
2217 } | |
2218 | |
2219 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2220 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2221 return reflect->obj_field(clazz_offset); | |
2222 } | |
2223 | |
2224 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2225 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2226 reflect->obj_field_put(clazz_offset, value); | |
2227 } | |
2228 | |
2229 oop java_lang_reflect_Field::name(oop field) { | |
2230 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2231 return field->obj_field(name_offset); | |
2232 } | |
2233 | |
2234 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2235 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2236 field->obj_field_put(name_offset, value); | |
2237 } | |
2238 | |
2239 oop java_lang_reflect_Field::type(oop field) { | |
2240 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2241 return field->obj_field(type_offset); | |
2242 } | |
2243 | |
2244 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2245 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2246 field->obj_field_put(type_offset, value); | |
2247 } | |
2248 | |
2249 int java_lang_reflect_Field::slot(oop reflect) { | |
2250 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2251 return reflect->int_field(slot_offset); | |
2252 } | |
2253 | |
2254 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2255 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2256 reflect->int_field_put(slot_offset, value); | |
2257 } | |
2258 | |
2259 int java_lang_reflect_Field::modifiers(oop field) { | |
2260 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2261 return field->int_field(modifiers_offset); | |
2262 } | |
2263 | |
2264 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2265 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2266 field->int_field_put(modifiers_offset, value); | |
2267 } | |
2268 | |
2269 bool java_lang_reflect_Field::has_signature_field() { | |
2270 return (signature_offset >= 0); | |
2271 } | |
2272 | |
2273 oop java_lang_reflect_Field::signature(oop field) { | |
2274 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2275 assert(has_signature_field(), "signature field must be present"); | |
2276 return field->obj_field(signature_offset); | |
2277 } | |
2278 | |
2279 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2280 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2281 assert(has_signature_field(), "signature field must be present"); | |
2282 field->obj_field_put(signature_offset, value); | |
2283 } | |
2284 | |
2285 bool java_lang_reflect_Field::has_annotations_field() { | |
2286 return (annotations_offset >= 0); | |
2287 } | |
2288 | |
2289 oop java_lang_reflect_Field::annotations(oop field) { | |
2290 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2291 assert(has_annotations_field(), "annotations field must be present"); | |
2292 return field->obj_field(annotations_offset); | |
2293 } | |
2294 | |
2295 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2296 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2297 assert(has_annotations_field(), "annotations field must be present"); | |
2298 field->obj_field_put(annotations_offset, value); | |
2299 } | |
2300 | |
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2301 bool java_lang_reflect_Field::has_type_annotations_field() { |
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2302 return (type_annotations_offset >= 0); |
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2303 } |
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2304 |
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2305 oop java_lang_reflect_Field::type_annotations(oop field) { |
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2306 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2307 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2308 return field->obj_field(type_annotations_offset); |
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2309 } |
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2310 |
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2311 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { |
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2312 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2313 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2314 field->obj_field_put(type_annotations_offset, value); |
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2315 } |
0 | 2316 |
2317 void sun_reflect_ConstantPool::compute_offsets() { | |
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2318 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2319 // This null test can be removed post beta |
2320 if (k != NULL) { | |
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2321 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
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2322 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
0 | 2323 } |
2324 } | |
2325 | |
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2326 void java_lang_reflect_Parameter::compute_offsets() { |
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2327 Klass* k = SystemDictionary::reflect_Parameter_klass(); |
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2328 if(NULL != k) { |
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2329 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2330 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
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2331 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); |
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2332 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); |
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2333 } |
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2334 } |
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2335 |
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2336 Handle java_lang_reflect_Parameter::create(TRAPS) { |
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2337 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2338 Symbol* name = vmSymbols::java_lang_reflect_Parameter(); |
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2339 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
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2340 instanceKlassHandle klass (THREAD, k); |
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2341 // Ensure it is initialized |
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2342 klass->initialize(CHECK_NH); |
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2343 return klass->allocate_instance_handle(CHECK_NH); |
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2344 } |
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2345 |
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2346 oop java_lang_reflect_Parameter::name(oop param) { |
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2347 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2348 return param->obj_field(name_offset); |
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2349 } |
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2350 |
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2351 void java_lang_reflect_Parameter::set_name(oop param, oop value) { |
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2352 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2353 param->obj_field_put(name_offset, value); |
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2354 } |
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2355 |
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2356 int java_lang_reflect_Parameter::modifiers(oop param) { |
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2357 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2358 return param->int_field(modifiers_offset); |
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2359 } |
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2360 |
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2361 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { |
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2362 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2363 param->int_field_put(modifiers_offset, value); |
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2364 } |
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2365 |
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2366 int java_lang_reflect_Parameter::index(oop param) { |
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2367 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2368 return param->int_field(index_offset); |
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2369 } |
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2370 |
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2371 void java_lang_reflect_Parameter::set_index(oop param, int value) { |
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2372 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2373 param->int_field_put(index_offset, value); |
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2374 } |
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2375 |
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2376 oop java_lang_reflect_Parameter::executable(oop param) { |
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2377 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2378 return param->obj_field(executable_offset); |
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2379 } |
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2380 |
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2381 void java_lang_reflect_Parameter::set_executable(oop param, oop value) { |
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2382 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2383 param->obj_field_put(executable_offset, value); |
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2384 } |
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2385 |
0 | 2386 |
2387 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2388 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2389 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2390 instanceKlassHandle klass (THREAD, k); |
2391 // Ensure it is initialized | |
2392 klass->initialize(CHECK_NH); | |
2393 return klass->allocate_instance_handle(CHECK_NH); | |
2394 } | |
2395 | |
2396 | |
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2397 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
0 | 2398 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2399 oop mirror = value->pool_holder()->java_mirror(); |
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2400 // Save the mirror to get back the constant pool. |
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2401 reflect->obj_field_put(_oop_offset, mirror); |
0 | 2402 } |
2403 | |
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2404 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
0 | 2405 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2406 |
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2407 oop mirror = reflect->obj_field(_oop_offset); |
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2408 Klass* k = java_lang_Class::as_Klass(mirror); |
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2409 assert(k->oop_is_instance(), "Must be"); |
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2410 |
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2411 // Get the constant pool back from the klass. Since class redefinition |
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2412 // merges the new constant pool into the old, this is essentially the |
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2413 // same constant pool as the original. If constant pool merging is |
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2414 // no longer done in the future, this will have to change to save |
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2415 // the original. |
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2416 return InstanceKlass::cast(k)->constants(); |
0 | 2417 } |
2418 | |
2419 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
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2420 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2421 // This null test can be removed post beta |
2422 if (k != NULL) { | |
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2423 compute_offset(_base_offset, k, |
0 | 2424 vmSymbols::base_name(), vmSymbols::object_signature()); |
2425 } | |
2426 } | |
2427 | |
132
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2428 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2429 Klass* k = SystemDictionary::box_klass(type); |
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2430 if (k == NULL) return NULL; |
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2431 instanceKlassHandle h (THREAD, k); |
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2432 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2433 return h->allocate_instance(THREAD); |
0 | 2434 } |
2435 | |
2436 | |
2437 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2438 oop box = initialize_and_allocate(type, CHECK_0); |
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2439 if (box == NULL) return NULL; |
0 | 2440 switch (type) { |
2441 case T_BOOLEAN: | |
2442 box->bool_field_put(value_offset, value->z); | |
2443 break; | |
2444 case T_CHAR: | |
2445 box->char_field_put(value_offset, value->c); | |
2446 break; | |
2447 case T_FLOAT: | |
2448 box->float_field_put(value_offset, value->f); | |
2449 break; | |
2450 case T_DOUBLE: | |
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|
2451 box->double_field_put(long_value_offset, value->d); |
0 | 2452 break; |
2453 case T_BYTE: | |
2454 box->byte_field_put(value_offset, value->b); | |
2455 break; | |
2456 case T_SHORT: | |
2457 box->short_field_put(value_offset, value->s); | |
2458 break; | |
2459 case T_INT: | |
2460 box->int_field_put(value_offset, value->i); | |
2461 break; | |
2462 case T_LONG: | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2463 box->long_field_put(long_value_offset, value->j); |
0 | 2464 break; |
2465 default: | |
2466 return NULL; | |
2467 } | |
2468 return box; | |
2469 } | |
2470 | |
2471 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2472 BasicType java_lang_boxing_object::basic_type(oop box) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2473 if (box == NULL) return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2474 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2475 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2476 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2477 return type; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2478 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2479 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2480 |
0 | 2481 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2482 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2483 switch (type) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2484 case T_BOOLEAN: |
0 | 2485 value->z = box->bool_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2486 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2487 case T_CHAR: |
0 | 2488 value->c = box->char_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2489 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2490 case T_FLOAT: |
0 | 2491 value->f = box->float_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2492 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2493 case T_DOUBLE: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2494 value->d = box->double_field(long_value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2495 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2496 case T_BYTE: |
0 | 2497 value->b = box->byte_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2498 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2499 case T_SHORT: |
0 | 2500 value->s = box->short_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2501 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2502 case T_INT: |
0 | 2503 value->i = box->int_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2504 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2505 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2506 value->j = box->long_field(long_value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2507 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2508 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2509 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2510 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2511 return type; |
0 | 2512 } |
2513 | |
2514 | |
2515 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2516 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2517 switch (type) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2518 case T_BOOLEAN: |
0 | 2519 box->bool_field_put(value_offset, value->z); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2520 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2521 case T_CHAR: |
0 | 2522 box->char_field_put(value_offset, value->c); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2523 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2524 case T_FLOAT: |
0 | 2525 box->float_field_put(value_offset, value->f); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2526 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2527 case T_DOUBLE: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2528 box->double_field_put(long_value_offset, value->d); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2529 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2530 case T_BYTE: |
0 | 2531 box->byte_field_put(value_offset, value->b); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2532 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2533 case T_SHORT: |
0 | 2534 box->short_field_put(value_offset, value->s); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2535 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2536 case T_INT: |
0 | 2537 box->int_field_put(value_offset, value->i); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2538 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2539 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2540 box->long_field_put(long_value_offset, value->j); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2541 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2542 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2543 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2544 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2545 return type; |
0 | 2546 } |
2547 | |
2548 | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2549 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2550 switch (type) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2551 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2552 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2553 case T_BYTE: st->print("%d", value->b); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2554 case T_SHORT: st->print("%d", value->s); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2555 case T_INT: st->print("%d", value->i); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2556 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2557 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2558 case T_DOUBLE: st->print("%lf", value->d); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2559 default: st->print("type %d?", type); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2560 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2561 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2562 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2563 |
0 | 2564 // Support for java_lang_ref_Reference |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2565 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2566 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2567 address addr = ik->static_field_addr(static_lock_offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2568 return (HeapWord*) addr; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2569 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2570 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2571 oop java_lang_ref_Reference::pending_list_lock() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2572 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2573 address addr = ik->static_field_addr(static_lock_offset); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2574 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2575 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2576 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2577 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2578 } |
0 | 2579 } |
2580 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2581 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2582 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2583 address addr = ik->static_field_addr(static_pending_offset); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2584 // XXX This might not be HeapWord aligned, almost rather be char *. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2585 return (HeapWord*)addr; |
0 | 2586 } |
2587 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2588 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2589 char *addr = (char *)pending_list_addr(); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2590 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2591 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2592 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2593 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2594 } |
0 | 2595 } |
2596 | |
2597 | |
2598 // Support for java_lang_ref_SoftReference | |
2599 | |
2600 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2601 return ref->long_field(timestamp_offset); | |
2602 } | |
2603 | |
2604 jlong java_lang_ref_SoftReference::clock() { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2605 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2606 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2607 return *offset; |
0 | 2608 } |
2609 | |
2610 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2611 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2612 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2613 *offset = value; |
0 | 2614 } |
2615 | |
12010
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2616 // Support for java_lang_invoke_DirectMethodHandle |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2617 |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2618 int java_lang_invoke_DirectMethodHandle::_member_offset; |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2619 |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2620 oop java_lang_invoke_DirectMethodHandle::member(oop dmh) { |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2621 oop member_name = NULL; |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2622 bool is_dmh = dmh->is_oop() && java_lang_invoke_DirectMethodHandle::is_instance(dmh); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
11020
diff
changeset
|
2623 assert(is_dmh, "a DirectMethodHandle oop is expected"); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
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|
2624 if (is_dmh) { |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
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diff
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|
2625 member_name = dmh->obj_field(member_offset_in_bytes()); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
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|
2626 } |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
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diff
changeset
|
2627 return member_name; |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
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diff
changeset
|
2628 } |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
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diff
changeset
|
2629 |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
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diff
changeset
|
2630 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
ca0165daa6ec
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diff
changeset
|
2631 Klass* klass_oop = SystemDictionary::DirectMethodHandle_klass(); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
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diff
changeset
|
2632 if (klass_oop != NULL && EnableInvokeDynamic) { |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
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diff
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|
2633 compute_offset(_member_offset, klass_oop, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
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|
2634 } |
ca0165daa6ec
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|
2635 } |
0 | 2636 |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2637 // Support for java_lang_invoke_MethodHandle |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2638 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2639 int java_lang_invoke_MethodHandle::_type_offset; |
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2640 int java_lang_invoke_MethodHandle::_form_offset; |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2641 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2642 int java_lang_invoke_MemberName::_clazz_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2643 int java_lang_invoke_MemberName::_name_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2644 int java_lang_invoke_MemberName::_type_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
2645 int java_lang_invoke_MemberName::_flags_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2646 int java_lang_invoke_MemberName::_vmtarget_offset; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2647 int java_lang_invoke_MemberName::_vmloader_offset; |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2648 int java_lang_invoke_MemberName::_vmindex_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
2649 |
6266
1d7922586cf6
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|
2650 int java_lang_invoke_LambdaForm::_vmentry_offset; |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2651 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2652 void java_lang_invoke_MethodHandle::compute_offsets() { |
6725
da91efe96a93
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|
2653 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
3938 | 2654 if (klass_oop != NULL && EnableInvokeDynamic) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2655 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2656 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2657 if (_form_offset == 0) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2658 EnableInvokeDynamic = false; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2659 } |
710 | 2660 } |
2661 } | |
2662 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2663 void java_lang_invoke_MemberName::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2664 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
3938 | 2665 if (klass_oop != NULL && EnableInvokeDynamic) { |
2666 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2667 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2668 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2669 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2670 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2671 } |
2672 } | |
2673 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2674 void java_lang_invoke_LambdaForm::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2675 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2676 if (klass_oop != NULL && EnableInvokeDynamic) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2677 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
710 | 2678 } |
2679 } | |
2680 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2681 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2682 return mh->obj_field(_type_offset); |
2683 } | |
2684 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2685 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2686 mh->obj_field_put(_type_offset, mtype); |
2687 } | |
2688 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2689 oop java_lang_invoke_MethodHandle::form(oop mh) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2690 assert(_form_offset != 0, ""); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2691 return mh->obj_field(_form_offset); |
710 | 2692 } |
2693 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2694 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2695 assert(_form_offset != 0, ""); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2696 mh->obj_field_put(_form_offset, lform); |
710 | 2697 } |
2698 | |
2699 /// MemberName accessors | |
2700 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2701 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2702 assert(is_instance(mname), "wrong type"); |
2703 return mname->obj_field(_clazz_offset); | |
2704 } | |
2705 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2706 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2707 assert(is_instance(mname), "wrong type"); |
2708 mname->obj_field_put(_clazz_offset, clazz); | |
2709 } | |
2710 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2711 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2712 assert(is_instance(mname), "wrong type"); |
2713 return mname->obj_field(_name_offset); | |
2714 } | |
2715 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2716 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2717 assert(is_instance(mname), "wrong type"); |
2718 mname->obj_field_put(_name_offset, name); | |
2719 } | |
2720 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2721 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2722 assert(is_instance(mname), "wrong type"); |
2723 return mname->obj_field(_type_offset); | |
2724 } | |
2725 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2726 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2727 assert(is_instance(mname), "wrong type"); |
2728 mname->obj_field_put(_type_offset, type); | |
2729 } | |
2730 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2731 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2732 assert(is_instance(mname), "wrong type"); |
2733 return mname->int_field(_flags_offset); | |
2734 } | |
2735 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2736 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2737 assert(is_instance(mname), "wrong type"); |
2738 mname->int_field_put(_flags_offset, flags); | |
2739 } | |
2740 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2741 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2742 assert(is_instance(mname), "wrong type"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2743 return (Metadata*)mname->address_field(_vmtarget_offset); |
710 | 2744 } |
2745 | |
10133
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2746 #if INCLUDE_JVMTI |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2747 // Can be executed on VM thread only |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2748 void java_lang_invoke_MemberName::adjust_vmtarget(oop mname, Metadata* ref) { |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2749 assert((is_instance(mname) && (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0), "wrong type"); |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2750 assert(Thread::current()->is_VM_thread(), "not VM thread"); |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2751 mname->address_field_put(_vmtarget_offset, (address)ref); |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2752 } |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2753 #endif // INCLUDE_JVMTI |
6337ca4dcad8
8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents:
7629
diff
changeset
|
2754 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2755 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
710 | 2756 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
|
2757 // check the type of the vmtarget |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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7180
diff
changeset
|
2758 oop dependency = NULL; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2759 if (ref != NULL) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2760 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
|
2761 MN_IS_CONSTRUCTOR | |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2762 MN_IS_FIELD)) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2763 case MN_IS_METHOD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2764 case MN_IS_CONSTRUCTOR: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2765 assert(ref->is_method(), "should be a method"); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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7180
diff
changeset
|
2766 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
|
2767 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2768 case MN_IS_FIELD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2769 assert(ref->is_klass(), "should be a class"); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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7180
diff
changeset
|
2770 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
|
2771 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2772 default: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2773 ShouldNotReachHere(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2774 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2775 } |
6725
da91efe96a93
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6267
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changeset
|
2776 mname->address_field_put(_vmtarget_offset, (address)ref); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
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7180
diff
changeset
|
2777 // 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
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7180
diff
changeset
|
2778 // distinct loaders) to ensure the metadata is kept alive |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
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7180
diff
changeset
|
2779 // 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
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7180
diff
changeset
|
2780 mname->obj_field_put(_vmloader_offset, dependency); |
710 | 2781 } |
2782 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2783 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2784 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
|
2785 return (intptr_t) mname->address_field(_vmindex_offset); |
710 | 2786 } |
2787 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2788 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
|
2789 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
|
2790 mname->address_field_put(_vmindex_offset, (address) index); |
710 | 2791 } |
2792 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2793 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
|
2794 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
|
2795 return lform->obj_field(_vmentry_offset); |
710 | 2796 } |
2797 | |
2798 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
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diff
changeset
|
2799 // Support for java_lang_invoke_MethodType |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2800 |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2801 int java_lang_invoke_MethodType::_rtype_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2802 int java_lang_invoke_MethodType::_ptypes_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2803 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2804 void java_lang_invoke_MethodType::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
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|
2805 Klass* k = SystemDictionary::MethodType_klass(); |
710 | 2806 if (k != NULL) { |
2807 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2808 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2809 } | |
2810 } | |
2811 | |
2357
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diff
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|
2812 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2813 st->print("("); |
2814 objArrayOop pts = ptypes(mt); | |
2815 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2816 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2817 } | |
2818 st->print(")"); | |
2819 java_lang_Class::print_signature(rtype(mt), st); | |
2820 } | |
2821 | |
2357
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diff
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|
2822 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2823 ResourceMark rm; |
2824 stringStream buffer(128); | |
2825 print_signature(mt, &buffer); | |
2826 const char* sigstr = buffer.base(); | |
2827 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
2828 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2829 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2830 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2831 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2832 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2833 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2834 return name; |
710 | 2835 } |
2836 | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2837 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
2838 if (mt1 == mt2) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2839 return true; |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2840 if (rtype(mt1) != rtype(mt2)) |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2841 return false; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2842 if (ptype_count(mt1) != ptype_count(mt2)) |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2843 return false; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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parents:
3363
diff
changeset
|
2844 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
|
2845 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
|
2846 return false; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2847 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2848 return true; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2849 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2850 |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2851 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2852 assert(is_instance(mt), "must be a MethodType"); |
2853 return mt->obj_field(_rtype_offset); | |
2854 } | |
2855 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2856 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2857 assert(is_instance(mt), "must be a MethodType"); |
2858 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2859 } | |
2860 | |
2357
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jrose
parents:
2356
diff
changeset
|
2861 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2862 return ptypes(mt)->obj_at(idx); |
2863 } | |
2864 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2865 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
|
2866 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2867 } |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2868 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
changeset
|
2869 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
|
2870 objArrayOop pts = ptypes(mt); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2871 int count = pts->length(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2872 int slots = 0; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2873 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
|
2874 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
|
2875 slots += type2size[bt]; |
710 | 2876 } |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2877 return slots; |
710 | 2878 } |
2879 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2880 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
|
2881 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
|
2882 return type2size[bt]; |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2883 } |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2884 |
710 | 2885 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2886 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2887 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2888 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
|
2889 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2890 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2891 if (!EnableInvokeDynamic) return; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2892 Klass* k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2893 if (k != NULL) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2894 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
|
2895 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2896 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2897 |
710 | 2898 |
0 | 2899 // Support for java_security_AccessControlContext |
2900 | |
2901 int java_security_AccessControlContext::_context_offset = 0; | |
2902 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2903 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
11010 | 2904 int java_security_AccessControlContext::_isAuthorized_offset = -1; |
0 | 2905 |
2906 void java_security_AccessControlContext::compute_offsets() { | |
2907 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2908 fieldDescriptor fd; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2909 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
0 | 2910 |
2911 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2912 fatal("Invalid layout of java.security.AccessControlContext"); | |
2913 } | |
2914 _context_offset = fd.offset(); | |
2915 | |
2916 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2917 fatal("Invalid layout of java.security.AccessControlContext"); | |
2918 } | |
2919 _privilegedContext_offset = fd.offset(); | |
2920 | |
2921 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2922 fatal("Invalid layout of java.security.AccessControlContext"); | |
2923 } | |
2924 _isPrivileged_offset = fd.offset(); | |
11010 | 2925 |
2926 // The offset may not be present for bootstrapping with older JDK. | |
2927 if (ik->find_local_field(vmSymbols::isAuthorized_name(), vmSymbols::bool_signature(), &fd)) { | |
2928 _isAuthorized_offset = fd.offset(); | |
2929 } | |
0 | 2930 } |
2931 | |
2932 | |
11010 | 2933 bool java_security_AccessControlContext::is_authorized(Handle context) { |
2934 assert(context.not_null() && context->klass() == SystemDictionary::AccessControlContext_klass(), "Invalid type"); | |
2935 assert(_isAuthorized_offset != -1, "should be set"); | |
2936 return context->bool_field(_isAuthorized_offset) != 0; | |
2937 } | |
0 | 2938 |
2939 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2940 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2941 // Ensure klass is initialized | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2942 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
0 | 2943 // Allocate result |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2944 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
0 | 2945 // Fill in values |
2946 result->obj_field_put(_context_offset, context()); | |
2947 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2948 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
|
2949 // 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
|
2950 if (_isAuthorized_offset != -1) { |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2951 result->bool_field_put(_isAuthorized_offset, true); |
be131aa5a529
8011896: Add check for invalid offset for new AccessControlContext isAuthorized field
mullan
parents:
11010
diff
changeset
|
2952 } |
0 | 2953 return result; |
2954 } | |
2955 | |
2956 | |
2957 // Support for java_lang_ClassLoader | |
6725
da91efe96a93
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coleenp
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6267
diff
changeset
|
2958 |
3938 | 2959 bool java_lang_ClassLoader::offsets_computed = false; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2960 int java_lang_ClassLoader::_loader_data_offset = -1; |
3938 | 2961 int java_lang_ClassLoader::parallelCapable_offset = -1; |
2962 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2963 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2964 assert(loader != NULL && loader->is_oop(), "loader must be oop"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2965 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2966 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2967 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2968 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2969 return *java_lang_ClassLoader::loader_data_addr(loader); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2970 } |
da91efe96a93
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6267
diff
changeset
|
2971 |
3938 | 2972 void java_lang_ClassLoader::compute_offsets() { |
2973 assert(!offsets_computed, "offsets should be initialized only once"); | |
2974 offsets_computed = true; | |
2975 | |
2976 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2977 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
3938 | 2978 compute_optional_offset(parallelCapable_offset, |
2979 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2980 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2981 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
3938 | 2982 } |
0 | 2983 |
2984 oop java_lang_ClassLoader::parent(oop loader) { | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2985 assert(is_instance(loader), "loader must be oop"); |
0 | 2986 return loader->obj_field(parent_offset); |
2987 } | |
2988 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2989 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2990 assert(is_instance(loader), "loader must be oop"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2991 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2992 oop acl = loader; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2993 debug_only(jint loop_count = 0); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2994 // This loop taken verbatim from ClassLoader.java: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2995 do { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2996 acl = parent(acl); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2997 if (cl == acl) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2998 return true; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2999 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3000 assert(++loop_count > 0, "loop_count overflow"); |
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3001 } while (acl != NULL); |
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3002 return false; |
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|
3003 } |
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3004 |
0 | 3005 |
3938 | 3006 // For class loader classes, parallelCapable defined |
3007 // based on non-null field | |
3008 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
3009 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
3010 if (!JDK_Version::is_gte_jdk17x_version() | |
3011 || parallelCapable_offset == -1) { | |
3012 // Default for backward compatibility is false | |
3013 return false; | |
3014 } | |
3015 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
3016 } | |
3017 | |
0 | 3018 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
3019 // Fix for 4474172; see evaluation for more details | |
3020 loader = non_reflection_class_loader(loader); | |
3021 | |
3022 oop cl = SystemDictionary::java_system_loader(); | |
3023 while(cl != NULL) { | |
3024 if (cl == loader) return true; | |
3025 cl = parent(cl); | |
3026 } | |
3027 return false; | |
3028 } | |
3029 | |
3030 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
3031 if (loader != NULL) { | |
3032 // See whether this is one of the class loaders associated with | |
3033 // the generated bytecodes for reflection, and if so, "magically" | |
3034 // delegate to its parent to prevent class loading from occurring | |
3035 // in places where applications using reflection didn't expect it. | |
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3036 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 3037 // This might be null in non-1.4 JDKs |
3038 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
3039 return parent(loader); | |
3040 } | |
3041 } | |
3042 return loader; | |
3043 } | |
3044 | |
3045 | |
3046 // Support for java_lang_System | |
3047 int java_lang_System::in_offset_in_bytes() { | |
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3048 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 3049 } |
3050 | |
3051 | |
3052 int java_lang_System::out_offset_in_bytes() { | |
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3053 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 3054 } |
3055 | |
3056 | |
3057 int java_lang_System::err_offset_in_bytes() { | |
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3058 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 3059 } |
3060 | |
3061 | |
11010 | 3062 bool java_lang_System::has_security_manager() { |
3063 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::System_klass()); | |
3064 address addr = ik->static_field_addr(static_security_offset); | |
3065 if (UseCompressedOops) { | |
3066 return oopDesc::load_decode_heap_oop((narrowOop *)addr) != NULL; | |
3067 } else { | |
3068 return oopDesc::load_decode_heap_oop((oop*)addr) != NULL; | |
3069 } | |
3070 } | |
0 | 3071 |
3938 | 3072 int java_lang_Class::_klass_offset; |
3073 int java_lang_Class::_array_klass_offset; | |
3074 int java_lang_Class::_oop_size_offset; | |
3075 int java_lang_Class::_static_oop_field_count_offset; | |
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8003421: NPG: Move oops out of InstanceKlass into mirror
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3076 int java_lang_Class::_protection_domain_offset; |
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3077 int java_lang_Class::_init_lock_offset; |
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3078 int java_lang_Class::_signers_offset; |
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3079 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
0 | 3080 int java_lang_Throwable::backtrace_offset; |
3081 int java_lang_Throwable::detailMessage_offset; | |
3082 int java_lang_Throwable::cause_offset; | |
3083 int java_lang_Throwable::stackTrace_offset; | |
3820
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3084 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 3085 int java_lang_reflect_AccessibleObject::override_offset; |
3086 int java_lang_reflect_Method::clazz_offset; | |
3087 int java_lang_reflect_Method::name_offset; | |
3088 int java_lang_reflect_Method::returnType_offset; | |
3089 int java_lang_reflect_Method::parameterTypes_offset; | |
3090 int java_lang_reflect_Method::exceptionTypes_offset; | |
3091 int java_lang_reflect_Method::slot_offset; | |
3092 int java_lang_reflect_Method::modifiers_offset; | |
3093 int java_lang_reflect_Method::signature_offset; | |
3094 int java_lang_reflect_Method::annotations_offset; | |
3095 int java_lang_reflect_Method::parameter_annotations_offset; | |
3096 int java_lang_reflect_Method::annotation_default_offset; | |
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|
3097 int java_lang_reflect_Method::type_annotations_offset; |
0 | 3098 int java_lang_reflect_Constructor::clazz_offset; |
3099 int java_lang_reflect_Constructor::parameterTypes_offset; | |
3100 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
3101 int java_lang_reflect_Constructor::slot_offset; | |
3102 int java_lang_reflect_Constructor::modifiers_offset; | |
3103 int java_lang_reflect_Constructor::signature_offset; | |
3104 int java_lang_reflect_Constructor::annotations_offset; | |
3105 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
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3106 int java_lang_reflect_Constructor::type_annotations_offset; |
0 | 3107 int java_lang_reflect_Field::clazz_offset; |
3108 int java_lang_reflect_Field::name_offset; | |
3109 int java_lang_reflect_Field::type_offset; | |
3110 int java_lang_reflect_Field::slot_offset; | |
3111 int java_lang_reflect_Field::modifiers_offset; | |
3112 int java_lang_reflect_Field::signature_offset; | |
3113 int java_lang_reflect_Field::annotations_offset; | |
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3114 int java_lang_reflect_Field::type_annotations_offset; |
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3115 int java_lang_reflect_Parameter::name_offset; |
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|
3116 int java_lang_reflect_Parameter::modifiers_offset; |
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|
3117 int java_lang_reflect_Parameter::index_offset; |
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|
3118 int java_lang_reflect_Parameter::executable_offset; |
0 | 3119 int java_lang_boxing_object::value_offset; |
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3120 int java_lang_boxing_object::long_value_offset; |
0 | 3121 int java_lang_ref_Reference::referent_offset; |
3122 int java_lang_ref_Reference::queue_offset; | |
3123 int java_lang_ref_Reference::next_offset; | |
3124 int java_lang_ref_Reference::discovered_offset; | |
3125 int java_lang_ref_Reference::static_lock_offset; | |
3126 int java_lang_ref_Reference::static_pending_offset; | |
3127 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
3128 int java_lang_ref_SoftReference::timestamp_offset; | |
3129 int java_lang_ref_SoftReference::static_clock_offset; | |
3130 int java_lang_ClassLoader::parent_offset; | |
3131 int java_lang_System::static_in_offset; | |
3132 int java_lang_System::static_out_offset; | |
3133 int java_lang_System::static_err_offset; | |
11010 | 3134 int java_lang_System::static_security_offset; |
0 | 3135 int java_lang_StackTraceElement::declaringClass_offset; |
3136 int java_lang_StackTraceElement::methodName_offset; | |
3137 int java_lang_StackTraceElement::fileName_offset; | |
3138 int java_lang_StackTraceElement::lineNumber_offset; | |
3139 int java_lang_AssertionStatusDirectives::classes_offset; | |
3140 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
3141 int java_lang_AssertionStatusDirectives::packages_offset; | |
3142 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
3143 int java_lang_AssertionStatusDirectives::deflt_offset; | |
3144 int java_nio_Buffer::_limit_offset; | |
3145 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
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3146 int sun_reflect_ConstantPool::_oop_offset; |
0 | 3147 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
3148 | |
3149 | |
3150 // Support for java_lang_StackTraceElement | |
3151 | |
3152 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
3153 element->obj_field_put(fileName_offset, value); | |
3154 } | |
3155 | |
3156 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
3157 element->obj_field_put(declaringClass_offset, value); | |
3158 } | |
3159 | |
3160 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
3161 element->obj_field_put(methodName_offset, value); | |
3162 } | |
3163 | |
3164 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
3165 element->int_field_put(lineNumber_offset, value); | |
3166 } | |
3167 | |
3168 | |
3169 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
3170 | |
3171 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
3172 o->obj_field_put(classes_offset, val); | |
3173 } | |
3174 | |
3175 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
3176 o->obj_field_put(classEnabled_offset, val); | |
3177 } | |
3178 | |
3179 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
3180 o->obj_field_put(packages_offset, val); | |
3181 } | |
3182 | |
3183 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
3184 o->obj_field_put(packageEnabled_offset, val); | |
3185 } | |
3186 | |
3187 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
3188 o->bool_field_put(deflt_offset, val); | |
3189 } | |
3190 | |
3191 | |
3192 // Support for intrinsification of java.nio.Buffer.checkIndex | |
3193 int java_nio_Buffer::limit_offset() { | |
3194 return _limit_offset; | |
3195 } | |
3196 | |
3197 | |
3198 void java_nio_Buffer::compute_offsets() { | |
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3199 Klass* k = SystemDictionary::nio_Buffer_klass(); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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3200 assert(k != NULL, "must be loaded in 1.4+"); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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3201 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 3202 } |
3203 | |
3204 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
3205 if (_owner_offset != 0) return; | |
3206 | |
3207 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
3208 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
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3209 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
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|
3210 compute_offset(_owner_offset, k, |
0 | 3211 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
3212 } | |
3213 | |
3214 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
3215 assert(_owner_offset != 0, "Must be initialized"); | |
3216 return obj->obj_field(_owner_offset); | |
3217 } | |
3218 | |
3219 // Compute hard-coded offsets | |
3220 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
3221 // are not available to determine the offset_of_static_fields. | |
3222 void JavaClasses::compute_hard_coded_offsets() { | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
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3223 const int x = heapOopSize; |
165
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6703888: Compressed Oops: use the 32-bits gap after klass in a object
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|
3224 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 3225 |
3226 // Throwable Class | |
3227 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3228 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3229 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3230 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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|
3231 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3232 |
3233 // java_lang_boxing_object | |
165
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3234 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3235 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3236 |
3237 // java_lang_ref_Reference: | |
3238 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3239 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3240 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3241 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3242 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3243 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3244 // Artificial fields for java_lang_ref_Reference | |
3245 // The first field is for the discovered field added in 1.4 | |
3246 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3247 | |
3248 // java_lang_ref_SoftReference Class | |
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3249 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3250 // Don't multiply static fields because they are always in wordSize units |
3251 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3252 | |
3253 // java_lang_ClassLoader | |
3254 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3255 | |
3256 // java_lang_System | |
3257 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3258 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3259 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
11010 | 3260 java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x; |
0 | 3261 |
3262 // java_lang_StackTraceElement | |
3263 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3264 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3265 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3266 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3267 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3268 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3269 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3270 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3271 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3272 | |
3273 } | |
3274 | |
3275 | |
3276 // Compute non-hard-coded field offsets of all the classes in this file | |
3277 void JavaClasses::compute_offsets() { | |
3938 | 3278 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3279 java_lang_ClassLoader::compute_offsets(); | |
0 | 3280 java_lang_Thread::compute_offsets(); |
3281 java_lang_ThreadGroup::compute_offsets(); | |
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3282 if (EnableInvokeDynamic) { |
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|
3283 java_lang_invoke_MethodHandle::compute_offsets(); |
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7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
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3284 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
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3285 java_lang_invoke_MemberName::compute_offsets(); |
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3286 java_lang_invoke_LambdaForm::compute_offsets(); |
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3287 java_lang_invoke_MethodType::compute_offsets(); |
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3288 java_lang_invoke_CallSite::compute_offsets(); |
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6655646: dynamic languages need dynamically linked call sites
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3289 } |
0 | 3290 java_security_AccessControlContext::compute_offsets(); |
3291 // Initialize reflection classes. The layouts of these classes | |
3292 // changed with the new reflection implementation in JDK 1.4, and | |
3293 // since the Universe doesn't know what JDK version it is until this | |
3294 // point we defer computation of these offsets until now. | |
3295 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3296 java_lang_reflect_Method::compute_offsets(); | |
3297 java_lang_reflect_Constructor::compute_offsets(); | |
3298 java_lang_reflect_Field::compute_offsets(); | |
3299 if (JDK_Version::is_gte_jdk14x_version()) { | |
3300 java_nio_Buffer::compute_offsets(); | |
3301 } | |
3302 if (JDK_Version::is_gte_jdk15x_version()) { | |
3303 sun_reflect_ConstantPool::compute_offsets(); | |
3304 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3305 } | |
14909 | 3306 if (JDK_Version::is_jdk18x_version()) |
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|
3307 java_lang_reflect_Parameter::compute_offsets(); |
710 | 3308 |
3309 // generated interpreter code wants to know about the offsets we just computed: | |
3310 AbstractAssembler::update_delayed_values(); | |
0 | 3311 } |
3312 | |
3313 #ifndef PRODUCT | |
3314 | |
3315 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3316 // against changes in the class files | |
3317 | |
3318 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3319 EXCEPTION_MARK; | |
3320 fieldDescriptor fd; | |
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6990754: Use native memory and reference counting to implement SymbolTable
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changeset
|
3321 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
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3322 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3323 instanceKlassHandle h_klass (THREAD, k); |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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3324 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
3325 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3326 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3327 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3328 return false; | |
3329 } | |
3330 if (fd.is_static()) { | |
3331 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3332 return false; | |
3333 } | |
3334 if (fd.offset() == hardcoded_offset ) { | |
3335 return true; | |
3336 } else { | |
3337 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3338 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3339 return false; | |
3340 } | |
3341 } | |
3342 | |
3343 | |
3344 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3345 EXCEPTION_MARK; | |
3346 fieldDescriptor fd; | |
2177
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|
3347 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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3348 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3349 instanceKlassHandle h_klass (THREAD, k); |
2177
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|
3350 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3351 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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|
3352 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3353 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3354 return false; | |
3355 } | |
3356 if (!fd.is_static()) { | |
3357 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3358 return false; | |
3359 } | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3360 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
0 | 3361 return true; |
3362 } else { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
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6725
diff
changeset
|
3363 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 | 3364 return false; |
3365 } | |
3366 } | |
3367 | |
3368 | |
132
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parents:
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|
3369 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
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|
3370 EXCEPTION_MARK; |
60b728ec77c1
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|
3371 fieldDescriptor fd; |
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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|
3372 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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3373 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
132
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3374 instanceKlassHandle h_klass (THREAD, k); |
2177
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1989
diff
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|
3375 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
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1989
diff
changeset
|
3376 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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|
3377 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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3378 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
|
3379 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3380 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
changeset
|
3381 if (!fd.is_static() || !fd.has_initial_value()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
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|
3382 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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|
3383 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
changeset
|
3384 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
changeset
|
3385 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
changeset
|
3386 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
|
3387 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3388 } |
60b728ec77c1
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diff
changeset
|
3389 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3390 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3391 return true; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3392 } else { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3393 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
|
3394 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3395 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3396 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3397 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3398 |
0 | 3399 // Check the hard-coded field offsets of all the classes in this file |
3400 | |
3401 void JavaClasses::check_offsets() { | |
3402 bool valid = true; | |
6725
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coleenp
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6267
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|
3403 HandleMark hm; |
0 | 3404 |
3405 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3406 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3407 | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3408 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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kvn
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diff
changeset
|
3409 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
437d03ea40b1
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parents:
132
diff
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|
3410 |
0 | 3411 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3412 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3413 | |
132
60b728ec77c1
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diff
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|
3414 #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
|
3415 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3416 |
0 | 3417 // java.lang.String |
3418 | |
3419 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
6057 | 3420 if (java_lang_String::has_offset_field()) { |
3421 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3422 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3423 } | |
3424 if (java_lang_String::has_hash_field()) { | |
3425 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3426 } | |
0 | 3427 |
3428 // java.lang.Class | |
3429 | |
3430 // Fake fields | |
3431 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3432 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3433 | |
3434 // java.lang.Throwable | |
3435 | |
3436 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3437 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3438 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3439 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3440 | |
3441 // Boxed primitive objects (java_lang_boxing_object) | |
3442 | |
3443 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3444 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3445 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
165
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132
diff
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|
3446 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3447 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3448 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3449 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
165
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132
diff
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|
3450 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3451 |
3452 // java.lang.ClassLoader | |
3453 | |
3454 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3455 | |
3456 // java.lang.System | |
3457 | |
3458 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3459 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3460 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
11010 | 3461 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, security, "Ljava/lang/SecurityManager;"); |
0 | 3462 |
3463 // java.lang.StackTraceElement | |
3464 | |
3465 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3466 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3467 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3468 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3469 | |
3470 // java.lang.ref.Reference | |
3471 | |
3472 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3473 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3474 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3475 // Fake field | |
3476 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3477 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3478 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3479 | |
3480 // java.lang.ref.SoftReference | |
3481 | |
3482 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3483 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3484 | |
3485 // java.lang.AssertionStatusDirectives | |
3486 // | |
3487 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3488 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3489 // into merlin "for some time." Without it, the vm will fail with early | |
3490 // merlin builds. | |
3491 | |
3492 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3493 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3494 const char* sig = "[Ljava/lang/String;"; | |
3495 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3496 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3497 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3498 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3499 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3500 } | |
3501 | |
3502 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3503 } | |
3504 | |
3505 #endif // PRODUCT | |
3506 | |
3938 | 3507 int InjectedField::compute_offset() { |
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|
3508 Klass* klass_oop = klass(); |
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coleenp
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6267
diff
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|
3509 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
3938 | 3510 if (!may_be_java && !fs.access_flags().is_internal()) { |
3511 // Only look at injected fields | |
3512 continue; | |
3513 } | |
3514 if (fs.name() == name() && fs.signature() == signature()) { | |
3515 return fs.offset(); | |
3516 } | |
3517 } | |
3518 ResourceMark rm; | |
6725
da91efe96a93
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coleenp
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6267
diff
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|
3519 tty->print_cr("Invalid layout of %s at %s/%s%s", InstanceKlass::cast(klass_oop)->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : ""); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3520 #ifndef PRODUCT |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3521 klass_oop->print(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3522 tty->print_cr("all fields:"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
3523 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3524 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3525 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3526 #endif //PRODUCT |
3938 | 3527 fatal("Invalid layout of preloaded class"); |
3528 return -1; | |
3529 } | |
3530 | |
0 | 3531 void javaClasses_init() { |
3532 JavaClasses::compute_offsets(); | |
3533 JavaClasses::check_offsets(); | |
3534 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3535 } |