Mercurial > hg > graal-jvmci-8
annotate src/share/vm/classfile/javaClasses.cpp @ 7610:ed6154d7d259
8005590: java_lang_Class injected field resolved_constructor appears unused
Reviewed-by: coleenp, dholmes
author | stefank |
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date | Tue, 15 Jan 2013 13:32:13 +0100 |
parents | ade95d680b42 |
children | c73c3f2c5b3b |
rev | line source |
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0 | 1 /* |
6057 | 2 * Copyright (c) 1997, 2012, 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 |
132
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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 | |
318 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
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 | |
323 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
324 for (int index = 0; index < length; index++) { | |
325 result[index] = value->char_at(index + offset); | |
326 } | |
327 return result; | |
328 } | |
329 | |
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330 unsigned int java_lang_String::hash_code(oop java_string) { |
6162 | 331 int length = java_lang_String::length(java_string); |
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332 // Zero length string will hash to zero with String.hashCode() function. |
6162 | 333 if (length == 0) return 0; |
334 | |
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335 typeArrayOop value = java_lang_String::value(java_string); |
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336 int offset = java_lang_String::offset(java_string); |
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337 return java_lang_String::hash_code(value->char_at_addr(offset), length); |
6162 | 338 } |
339 | |
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340 char* java_lang_String::as_quoted_ascii(oop java_string) { |
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341 typeArrayOop value = java_lang_String::value(java_string); |
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342 int offset = java_lang_String::offset(java_string); |
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343 int length = java_lang_String::length(java_string); |
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344 |
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345 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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346 if (base == NULL) return NULL; |
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347 |
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348 int result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
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349 char* result = NEW_RESOURCE_ARRAY(char, result_length); |
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350 UNICODE::as_quoted_ascii(base, length, result, result_length); |
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351 assert(result_length >= length + 1, "must not be shorter"); |
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352 assert(result_length == (int)strlen(result) + 1, "must match"); |
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353 return result; |
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354 } |
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355 |
6162 | 356 unsigned int java_lang_String::hash_string(oop java_string) { |
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357 int length = java_lang_String::length(java_string); |
6162 | 358 // Zero length string doesn't hash necessarily hash to zero. |
359 if (length == 0) { | |
360 return StringTable::hash_string(NULL, 0); | |
361 } | |
362 | |
363 typeArrayOop value = java_lang_String::value(java_string); | |
364 int offset = java_lang_String::offset(java_string); | |
365 return StringTable::hash_string(value->char_at_addr(offset), length); | |
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366 } |
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367 |
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368 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 369 oop obj = java_string(); |
370 typeArrayOop value = java_lang_String::value(obj); | |
371 int offset = java_lang_String::offset(obj); | |
372 int length = java_lang_String::length(obj); | |
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373 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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374 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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375 return sym; |
0 | 376 } |
377 | |
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378 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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379 typeArrayOop value = java_lang_String::value(java_string); |
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380 int offset = java_lang_String::offset(java_string); |
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381 int length = java_lang_String::length(java_string); |
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382 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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383 return SymbolTable::probe_unicode(base, length); |
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384 } |
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385 |
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386 |
0 | 387 int java_lang_String::utf8_length(oop java_string) { |
388 typeArrayOop value = java_lang_String::value(java_string); | |
389 int offset = java_lang_String::offset(java_string); | |
390 int length = java_lang_String::length(java_string); | |
391 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
392 return UNICODE::utf8_length(position, length); | |
393 } | |
394 | |
395 char* java_lang_String::as_utf8_string(oop java_string) { | |
396 typeArrayOop value = java_lang_String::value(java_string); | |
397 int offset = java_lang_String::offset(java_string); | |
398 int length = java_lang_String::length(java_string); | |
399 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
400 return UNICODE::as_utf8(position, length); | |
401 } | |
402 | |
1989
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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1980
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changeset
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403 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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404 typeArrayOop value = java_lang_String::value(java_string); |
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405 int offset = java_lang_String::offset(java_string); |
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406 int length = java_lang_String::length(java_string); |
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407 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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408 return UNICODE::as_utf8(position, length, buf, buflen); |
017cd8bce8a8
6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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diff
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|
409 } |
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|
410 |
0 | 411 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
412 typeArrayOop value = java_lang_String::value(java_string); | |
413 int offset = java_lang_String::offset(java_string); | |
414 int length = java_lang_String::length(java_string); | |
415 assert(start + len <= length, "just checking"); | |
416 jchar* position = value->char_at_addr(offset + start); | |
417 return UNICODE::as_utf8(position, len); | |
418 } | |
419 | |
420 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
6867 | 421 assert(java_string->klass() == SystemDictionary::String_klass(), |
0 | 422 "must be java_string"); |
423 typeArrayOop value = java_lang_String::value(java_string); | |
424 int offset = java_lang_String::offset(java_string); | |
425 int length = java_lang_String::length(java_string); | |
426 if (length != len) { | |
427 return false; | |
428 } | |
429 for (int i = 0; i < len; i++) { | |
430 if (value->char_at(i + offset) != chars[i]) { | |
431 return false; | |
432 } | |
433 } | |
434 return true; | |
435 } | |
436 | |
437 void java_lang_String::print(Handle java_string, outputStream* st) { | |
438 oop obj = java_string(); | |
1142 | 439 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 440 typeArrayOop value = java_lang_String::value(obj); |
441 int offset = java_lang_String::offset(obj); | |
442 int length = java_lang_String::length(obj); | |
443 | |
444 int end = MIN2(length, 100); | |
445 if (value == NULL) { | |
446 // This can happen if, e.g., printing a String | |
447 // object before its initializer has been called | |
448 st->print_cr("NULL"); | |
449 } else { | |
450 st->print("\""); | |
451 for (int index = 0; index < length; index++) { | |
452 st->print("%c", value->char_at(index + offset)); | |
453 } | |
454 st->print("\""); | |
455 } | |
456 } | |
457 | |
2376
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458 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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459 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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460 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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461 if (fd->has_initial_value()) { |
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462 BasicType t = fd->field_type(); |
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463 switch (t) { |
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464 case T_BYTE: |
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465 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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466 break; |
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467 case T_BOOLEAN: |
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468 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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469 break; |
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470 case T_CHAR: |
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471 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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472 break; |
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473 case T_SHORT: |
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474 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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475 break; |
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476 case T_INT: |
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477 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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478 break; |
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479 case T_FLOAT: |
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480 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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481 break; |
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482 case T_DOUBLE: |
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483 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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484 break; |
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485 case T_LONG: |
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486 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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487 break; |
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488 case T_OBJECT: |
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489 { |
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490 #ifdef ASSERT |
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491 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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492 assert(fd->signature() == sym, "just checking"); |
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493 #endif |
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494 oop string = fd->string_initial_value(CHECK); |
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495 mirror()->obj_field_put(fd->offset(), string); |
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496 } |
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497 break; |
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498 default: |
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499 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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500 "Illegal ConstantValue attribute in class file"); |
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501 } |
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502 } |
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503 } |
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504 |
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505 |
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506 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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507 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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508 |
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509 // If the offset was read from the shared archive, it was fixed up already |
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510 if (!k->is_shared()) { |
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511 if (k->oop_is_instance()) { |
3938 | 512 // During bootstrap, java.lang.Class wasn't loaded so static field |
513 // offsets were computed without the size added it. Go back and | |
514 // update all the static field offsets to included the size. | |
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515 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
3938 | 516 if (fs.access_flags().is_static()) { |
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517 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
3938 | 518 fs.set_offset(real_offset); |
519 } | |
520 } | |
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521 } |
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522 } |
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523 create_mirror(k, CHECK); |
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524 } |
0 | 525 |
526 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
527 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
528 // Use this moment of initialization to cache modifier_flags also, | |
529 // to support Class.getModifiers(). Instance classes recalculate | |
530 // the cached flags after the class file is parsed, but before the | |
531 // class is put into the system dictionary. | |
532 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
533 k->set_modifier_flags(computed_modifiers); | |
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534 // Class_klass has to be loaded because it is used to allocate |
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535 // the mirror. |
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536 if (SystemDictionary::Class_klass_loaded()) { |
0 | 537 // Allocate mirror (java.lang.Class instance) |
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538 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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539 |
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540 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
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541 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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542 |
0 | 543 // It might also have a component mirror. This mirror must already exist. |
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544 if (k->oop_is_array()) { |
0 | 545 Handle comp_mirror; |
546 if (k->oop_is_typeArray()) { | |
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547 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
0 | 548 comp_mirror = Universe::java_mirror(type); |
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549 } else { |
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550 assert(k->oop_is_objArray(), "Must be"); |
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551 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
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552 assert(element_klass != NULL, "Must have an element klass"); |
6983 | 553 comp_mirror = element_klass->java_mirror(); |
0 | 554 } |
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555 assert(comp_mirror.not_null(), "must have a mirror"); |
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556 |
0 | 557 // Two-way link between the array klass and its component mirror: |
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558 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
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559 set_array_klass(comp_mirror(), k()); |
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560 } else { |
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561 assert(k->oop_is_instance(), "Must be"); |
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562 // Initialize static fields |
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563 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 564 } |
565 return mirror(); | |
566 } else { | |
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567 if (fixup_mirror_list() == NULL) { |
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568 GrowableArray<Klass*>* list = |
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569 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
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570 set_fixup_mirror_list(list); |
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571 } |
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572 fixup_mirror_list()->push(k()); |
0 | 573 return NULL; |
574 } | |
575 } | |
576 | |
577 | |
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578 |
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579 int java_lang_Class::oop_size(oop java_class) { |
3938 | 580 assert(_oop_size_offset != 0, "must be set"); |
581 return java_class->int_field(_oop_size_offset); | |
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582 } |
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583 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 584 assert(_oop_size_offset != 0, "must be set"); |
585 java_class->int_field_put(_oop_size_offset, size); | |
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586 } |
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587 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 588 assert(_static_oop_field_count_offset != 0, "must be set"); |
589 return java_class->int_field(_static_oop_field_count_offset); | |
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590 } |
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591 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 592 assert(_static_oop_field_count_offset != 0, "must be set"); |
593 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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594 } |
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595 |
0 | 596 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
597 // This should be improved by adding a field at the Java level or by | |
598 // introducing a new VM klass (see comment in ClassFileParser) | |
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599 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
0 | 600 if (type != T_VOID) { |
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601 Klass* aklass = Universe::typeArrayKlassObj(type); |
0 | 602 assert(aklass != NULL, "correct bootstrap"); |
603 set_array_klass(java_class, aklass); | |
604 } | |
4009 | 605 #ifdef ASSERT |
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606 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 607 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
608 #endif | |
0 | 609 return java_class; |
610 } | |
611 | |
612 | |
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613 Klass* java_lang_Class::as_Klass(oop java_class) { |
0 | 614 //%note memory_2 |
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615 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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616 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
0 | 617 assert(k == NULL || k->is_klass(), "type check"); |
618 return k; | |
619 } | |
620 | |
621 | |
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622 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
4009 | 623 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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624 java_class->metadata_field_put(_klass_offset, klass); |
4009 | 625 } |
626 | |
627 | |
665
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628 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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629 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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630 Symbol* name = NULL; |
665
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631 bool is_instance = false; |
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632 if (is_primitive(java_class)) { |
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633 name = vmSymbols::type_signature(primitive_type(java_class)); |
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634 } else { |
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635 Klass* k = as_Klass(java_class); |
6983 | 636 is_instance = k->oop_is_instance(); |
637 name = k->name(); | |
665
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638 } |
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639 if (name == NULL) { |
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640 st->print("<null>"); |
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641 return; |
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642 } |
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643 if (is_instance) st->print("L"); |
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644 st->write((char*) name->base(), (int) name->utf8_length()); |
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645 if (is_instance) st->print(";"); |
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646 } |
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647 |
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648 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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649 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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650 Symbol* name; |
665
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651 if (is_primitive(java_class)) { |
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652 name = vmSymbols::type_signature(primitive_type(java_class)); |
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653 // Because this can create a new symbol, the caller has to decrement |
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654 // the refcount, so make adjustment here and below for symbols returned |
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655 // that are not created or incremented due to a successful lookup. |
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656 name->increment_refcount(); |
665
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657 } else { |
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658 Klass* k = as_Klass(java_class); |
6983 | 659 if (!k->oop_is_instance()) { |
660 name = k->name(); | |
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661 name->increment_refcount(); |
665
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662 } else { |
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663 ResourceMark rm; |
6983 | 664 const char* sigstr = k->signature_name(); |
665
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665 int siglen = (int) strlen(sigstr); |
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666 if (!intern_if_not_found) { |
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667 name = SymbolTable::probe(sigstr, siglen); |
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668 } else { |
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669 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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670 } |
665
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671 } |
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672 } |
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673 return name; |
665
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674 } |
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675 |
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676 |
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677 Klass* java_lang_Class::array_klass(oop java_class) { |
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678 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
6983 | 679 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
0 | 680 return k; |
681 } | |
682 | |
683 | |
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684 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
6983 | 685 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
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686 java_class->metadata_field_put(_array_klass_offset, klass); |
0 | 687 } |
688 | |
689 | |
690 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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691 // should assert: |
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692 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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693 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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694 |
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695 #ifdef ASSERT |
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696 if (is_primitive) { |
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697 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
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698 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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699 "Should be either the T_VOID primitive or a java primitive"); |
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700 } |
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701 #endif |
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702 |
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703 return is_primitive; |
0 | 704 } |
705 | |
706 | |
707 BasicType java_lang_Class::primitive_type(oop java_class) { | |
708 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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709 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
0 | 710 BasicType type = T_VOID; |
711 if (ak != NULL) { | |
712 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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713 type = ArrayKlass::cast(ak)->element_type(); |
0 | 714 } else { |
715 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
716 } | |
717 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
718 return type; | |
719 } | |
720 | |
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721 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
665
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722 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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723 if (is_primitive(java_class)) { |
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724 if (reference_klass != NULL) |
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725 (*reference_klass) = NULL; |
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726 return primitive_type(java_class); |
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727 } else { |
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728 if (reference_klass != NULL) |
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729 (*reference_klass) = as_Klass(java_class); |
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730 return T_OBJECT; |
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731 } |
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732 } |
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733 |
0 | 734 |
735 oop java_lang_Class::primitive_mirror(BasicType t) { | |
736 oop mirror = Universe::java_mirror(t); | |
1142 | 737 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 738 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
739 return mirror; | |
740 } | |
741 | |
742 bool java_lang_Class::offsets_computed = false; | |
743 int java_lang_Class::classRedefinedCount_offset = -1; | |
744 | |
745 void java_lang_Class::compute_offsets() { | |
746 assert(!offsets_computed, "offsets should be initialized only once"); | |
747 offsets_computed = true; | |
748 | |
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749 Klass* klass_oop = SystemDictionary::Class_klass(); |
0 | 750 // The classRedefinedCount field is only present starting in 1.5, |
751 // so don't go fatal. | |
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752 compute_optional_offset(classRedefinedCount_offset, |
3938 | 753 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
754 | |
755 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 756 } |
757 | |
758 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
759 if (!JDK_Version::is_gte_jdk15x_version() | |
760 || classRedefinedCount_offset == -1) { | |
761 // The classRedefinedCount field is only present starting in 1.5. | |
762 // If we don't have an offset for it then just return -1 as a marker. | |
763 return -1; | |
764 } | |
765 | |
766 return the_class_mirror->int_field(classRedefinedCount_offset); | |
767 } | |
768 | |
769 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
770 if (!JDK_Version::is_gte_jdk15x_version() | |
771 || classRedefinedCount_offset == -1) { | |
772 // The classRedefinedCount field is only present starting in 1.5. | |
773 // If we don't have an offset for it then nothing to set. | |
774 return; | |
775 } | |
776 | |
777 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
778 } | |
779 | |
780 | |
781 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
782 // platform thread structure, and a eetop offset which was used for thread | |
783 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
784 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
785 // instead of the privateInfo_offset. | |
786 // | |
787 // Note: The stackSize field is only present starting in 1.4. | |
788 | |
789 int java_lang_Thread::_name_offset = 0; | |
790 int java_lang_Thread::_group_offset = 0; | |
791 int java_lang_Thread::_contextClassLoader_offset = 0; | |
792 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
793 int java_lang_Thread::_priority_offset = 0; | |
794 int java_lang_Thread::_eetop_offset = 0; | |
795 int java_lang_Thread::_daemon_offset = 0; | |
796 int java_lang_Thread::_stillborn_offset = 0; | |
797 int java_lang_Thread::_stackSize_offset = 0; | |
798 int java_lang_Thread::_tid_offset = 0; | |
799 int java_lang_Thread::_thread_status_offset = 0; | |
800 int java_lang_Thread::_park_blocker_offset = 0; | |
801 int java_lang_Thread::_park_event_offset = 0 ; | |
802 | |
803 | |
804 void java_lang_Thread::compute_offsets() { | |
805 assert(_group_offset == 0, "offsets should be initialized only once"); | |
806 | |
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807 Klass* k = SystemDictionary::Thread_klass(); |
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808 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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809 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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810 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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811 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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812 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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813 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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814 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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815 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 816 // The stackSize field is only present starting in 1.4, so don't go fatal. |
132
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817 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 818 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
132
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819 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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820 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 821 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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822 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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823 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 824 vmSymbols::long_signature()); |
825 } | |
826 | |
827 | |
828 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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829 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 830 } |
831 | |
832 | |
833 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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834 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 835 } |
836 | |
837 | |
838 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
839 oop name = java_thread->obj_field(_name_offset); | |
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840 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
0 | 841 return typeArrayOop(name); |
842 } | |
843 | |
844 | |
845 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
846 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
847 java_thread->obj_field_put(_name_offset, name); | |
848 } | |
849 | |
850 | |
851 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
852 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
853 } | |
854 | |
855 | |
856 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
857 java_thread->int_field_put(_priority_offset, priority); | |
858 } | |
859 | |
860 | |
861 oop java_lang_Thread::threadGroup(oop java_thread) { | |
862 return java_thread->obj_field(_group_offset); | |
863 } | |
864 | |
865 | |
866 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
867 return java_thread->bool_field(_stillborn_offset) != 0; | |
868 } | |
869 | |
870 | |
871 // We never have reason to turn the stillborn bit off | |
872 void java_lang_Thread::set_stillborn(oop java_thread) { | |
873 java_thread->bool_field_put(_stillborn_offset, true); | |
874 } | |
875 | |
876 | |
877 bool java_lang_Thread::is_alive(oop java_thread) { | |
878 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
879 return (thr != NULL); | |
880 } | |
881 | |
882 | |
883 bool java_lang_Thread::is_daemon(oop java_thread) { | |
884 return java_thread->bool_field(_daemon_offset) != 0; | |
885 } | |
886 | |
887 | |
888 void java_lang_Thread::set_daemon(oop java_thread) { | |
889 java_thread->bool_field_put(_daemon_offset, true); | |
890 } | |
891 | |
892 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
893 return java_thread->obj_field(_contextClassLoader_offset); | |
894 } | |
895 | |
896 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
897 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
898 } | |
899 | |
900 | |
901 jlong java_lang_Thread::stackSize(oop java_thread) { | |
902 // The stackSize field is only present starting in 1.4 | |
903 if (_stackSize_offset > 0) { | |
904 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
905 return java_thread->long_field(_stackSize_offset); | |
906 } else { | |
907 return 0; | |
908 } | |
909 } | |
910 | |
911 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
912 void java_lang_Thread::set_thread_status(oop java_thread, | |
913 java_lang_Thread::ThreadStatus status) { | |
914 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
915 // The threadStatus is only present starting in 1.5 | |
916 if (_thread_status_offset > 0) { | |
917 java_thread->int_field_put(_thread_status_offset, status); | |
918 } | |
919 } | |
920 | |
921 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
922 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
923 assert(Thread::current()->is_VM_thread() || | |
924 JavaThread::current()->thread_state() == _thread_in_vm, | |
925 "Java Thread is not running in vm"); | |
926 // The threadStatus is only present starting in 1.5 | |
927 if (_thread_status_offset > 0) { | |
928 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
929 } else { | |
930 // All we can easily figure out is if it is alive, but that is | |
931 // enough info for a valid unknown status. | |
932 // These aren't restricted to valid set ThreadStatus values, so | |
933 // use JVMTI values and cast. | |
934 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
935 if (thr == NULL) { | |
936 // the thread hasn't run yet or is in the process of exiting | |
937 return NEW; | |
938 } | |
939 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
940 } | |
941 } | |
942 | |
943 | |
944 jlong java_lang_Thread::thread_id(oop java_thread) { | |
945 // The thread ID field is only present starting in 1.5 | |
946 if (_tid_offset > 0) { | |
947 return java_thread->long_field(_tid_offset); | |
948 } else { | |
949 return 0; | |
950 } | |
951 } | |
952 | |
953 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 954 assert(JDK_Version::current().supports_thread_park_blocker() && |
955 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 956 |
957 if (_park_blocker_offset > 0) { | |
958 return java_thread->obj_field(_park_blocker_offset); | |
959 } | |
960 | |
961 return NULL; | |
962 } | |
963 | |
964 jlong java_lang_Thread::park_event(oop java_thread) { | |
965 if (_park_event_offset > 0) { | |
966 return java_thread->long_field(_park_event_offset); | |
967 } | |
968 return 0; | |
969 } | |
970 | |
971 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
972 if (_park_event_offset > 0) { | |
973 java_thread->long_field_put(_park_event_offset, ptr); | |
974 return true; | |
975 } | |
976 return false; | |
977 } | |
978 | |
979 | |
980 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
981 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
982 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
983 switch (status) { | |
984 case NEW : return "NEW"; | |
985 case RUNNABLE : return "RUNNABLE"; | |
986 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
987 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
988 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
989 case PARKED : return "WAITING (parking)"; | |
990 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
991 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
992 case TERMINATED : return "TERMINATED"; | |
993 default : return "UNKNOWN"; | |
994 }; | |
995 } | |
996 int java_lang_ThreadGroup::_parent_offset = 0; | |
997 int java_lang_ThreadGroup::_name_offset = 0; | |
998 int java_lang_ThreadGroup::_threads_offset = 0; | |
999 int java_lang_ThreadGroup::_groups_offset = 0; | |
1000 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
1001 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
1002 int java_lang_ThreadGroup::_daemon_offset = 0; | |
1003 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
1004 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
1005 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
1006 | |
1007 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
1008 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1009 return java_thread_group->obj_field(_parent_offset); | |
1010 } | |
1011 | |
1012 // ("name as oop" accessor is not necessary) | |
1013 | |
1014 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
1015 oop name = java_thread_group->obj_field(_name_offset); | |
1016 // ThreadGroup.name can be null | |
1017 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
1018 } | |
1019 | |
1020 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
1021 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1022 return java_thread_group->int_field(_nthreads_offset); | |
1023 } | |
1024 | |
1025 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
1026 oop threads = java_thread_group->obj_field(_threads_offset); | |
1027 assert(threads != NULL, "threadgroups should have threads"); | |
1028 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1029 return objArrayOop(threads); | |
1030 } | |
1031 | |
1032 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1033 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1034 return java_thread_group->int_field(_ngroups_offset); | |
1035 } | |
1036 | |
1037 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1038 oop groups = java_thread_group->obj_field(_groups_offset); | |
1039 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1040 return objArrayOop(groups); | |
1041 } | |
1042 | |
1043 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1044 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1045 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1046 } | |
1047 | |
1048 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1049 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1050 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1051 } | |
1052 | |
1053 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1054 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1055 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1056 } | |
1057 | |
1058 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1059 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1060 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1061 } | |
1062 | |
1063 void java_lang_ThreadGroup::compute_offsets() { | |
1064 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1065 | |
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1066 Klass* k = SystemDictionary::ThreadGroup_klass(); |
0 | 1067 |
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1068 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1069 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1070 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1071 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1072 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1073 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1074 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1075 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1076 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1077 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1078 } |
1079 | |
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1080 oop java_lang_Throwable::unassigned_stacktrace() { |
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1081 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1082 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1083 if (UseCompressedOops) { |
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1084 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1085 } else { |
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1086 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1087 } |
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1088 } |
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1089 |
0 | 1090 oop java_lang_Throwable::backtrace(oop throwable) { |
1091 return throwable->obj_field_acquire(backtrace_offset); | |
1092 } | |
1093 | |
1094 | |
1095 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1096 throwable->release_obj_field_put(backtrace_offset, value); | |
1097 } | |
1098 | |
1099 | |
1100 oop java_lang_Throwable::message(oop throwable) { | |
1101 return throwable->obj_field(detailMessage_offset); | |
1102 } | |
1103 | |
1104 | |
1105 oop java_lang_Throwable::message(Handle throwable) { | |
1106 return throwable->obj_field(detailMessage_offset); | |
1107 } | |
1108 | |
1109 | |
1110 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1111 throwable->obj_field_put(detailMessage_offset, value); | |
1112 } | |
1113 | |
1114 | |
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1115 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1116 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1117 } |
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1118 |
0 | 1119 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1120 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1121 set_stacktrace(throwable, NULL); |
0 | 1122 } |
1123 | |
1124 | |
1125 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1126 ResourceMark rm; | |
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1127 Klass* k = throwable->klass(); |
0 | 1128 assert(k != NULL, "just checking"); |
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1129 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1130 oop msg = message(throwable); |
1131 if (msg != NULL) { | |
1132 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1133 } | |
1134 } | |
1135 | |
1136 | |
1137 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1138 ResourceMark rm; | |
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1139 Klass* k = throwable->klass(); |
0 | 1140 assert(k != NULL, "just checking"); |
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1141 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1142 oop msg = message(throwable); |
1143 if (msg != NULL) { | |
1144 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1145 } | |
1146 } | |
1147 | |
1148 // Print stack trace element to resource allocated buffer | |
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1149 char* java_lang_Throwable::print_stack_element_to_buffer(Method* method, int bci) { |
0 | 1150 // Get strings and string lengths |
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1151 InstanceKlass* klass = method->method_holder(); |
0 | 1152 const char* klass_name = klass->external_name(); |
1153 int buf_len = (int)strlen(klass_name); | |
1154 char* source_file_name; | |
1155 if (klass->source_file_name() == NULL) { | |
1156 source_file_name = NULL; | |
1157 } else { | |
1158 source_file_name = klass->source_file_name()->as_C_string(); | |
1159 buf_len += (int)strlen(source_file_name); | |
1160 } | |
1161 char* method_name = method->name()->as_C_string(); | |
1162 buf_len += (int)strlen(method_name); | |
1163 | |
1164 // Allocate temporary buffer with extra space for formatting and line number | |
1165 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1166 | |
1167 // Print stack trace line in buffer | |
1168 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1169 if (method->is_native()) { | |
1170 strcat(buf, "(Native Method)"); | |
1171 } else { | |
1172 int line_number = method->line_number_from_bci(bci); | |
1173 if (source_file_name != NULL && (line_number != -1)) { | |
1174 // Sourcename and linenumber | |
1175 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1176 } else if (source_file_name != NULL) { | |
1177 // Just sourcename | |
1178 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1179 } else { | |
1180 // Neither soucename and linenumber | |
1181 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1182 } | |
1183 nmethod* nm = method->code(); | |
1184 if (WizardMode && nm != NULL) { | |
3960 | 1185 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
0 | 1186 } |
1187 } | |
1188 | |
1189 return buf; | |
1190 } | |
1191 | |
1192 | |
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1193 void java_lang_Throwable::print_stack_element(Handle stream, Method* method, int bci) { |
0 | 1194 ResourceMark rm; |
1195 char* buf = print_stack_element_to_buffer(method, bci); | |
1196 print_to_stream(stream, buf); | |
1197 } | |
1198 | |
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1199 void java_lang_Throwable::print_stack_element(outputStream *st, Method* method, int bci) { |
0 | 1200 ResourceMark rm; |
1201 char* buf = print_stack_element_to_buffer(method, bci); | |
1202 st->print_cr("%s", buf); | |
1203 } | |
1204 | |
1205 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1206 if (stream.is_null()) { | |
1207 tty->print_cr("%s", str); | |
1208 } else { | |
1209 EXCEPTION_MARK; | |
1210 JavaValue result(T_VOID); | |
1211 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1212 if (!HAS_PENDING_EXCEPTION) { | |
1213 JavaCalls::call_virtual(&result, | |
1214 stream, | |
1215 KlassHandle(THREAD, stream->klass()), | |
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1216 vmSymbols::println_name(), |
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1217 vmSymbols::char_array_void_signature(), |
0 | 1218 arg, |
1219 THREAD); | |
1220 } | |
1221 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1222 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1223 } | |
1224 | |
1225 } | |
1226 | |
1227 | |
1228 const char* java_lang_Throwable::no_stack_trace_message() { | |
1229 return "\t<<no stack trace available>>"; | |
1230 } | |
1231 | |
1232 | |
1233 // Currently used only for exceptions occurring during startup | |
1234 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1235 Thread *THREAD = Thread::current(); | |
1236 Handle h_throwable(THREAD, throwable); | |
1237 while (h_throwable.not_null()) { | |
1238 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1239 if (result.is_null()) { | |
1240 st->print_cr(no_stack_trace_message()); | |
1241 return; | |
1242 } | |
1243 | |
1244 while (result.not_null()) { | |
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1245 typeArrayHandle methods (THREAD, |
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1246 typeArrayOop(result->obj_at(trace_methods_offset))); |
0 | 1247 typeArrayHandle bcis (THREAD, |
1248 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1249 | |
1250 if (methods.is_null() || bcis.is_null()) { | |
1251 st->print_cr(no_stack_trace_message()); | |
1252 return; | |
1253 } | |
1254 | |
1255 int length = methods()->length(); | |
1256 for (int index = 0; index < length; index++) { | |
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1257 Method* method = ((Method*)methods()->metadata_at(index)); |
0 | 1258 if (method == NULL) goto handle_cause; |
1259 int bci = bcis->ushort_at(index); | |
1260 print_stack_element(st, method, bci); | |
1261 } | |
1262 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1263 } | |
1264 handle_cause: | |
1265 { | |
1266 EXCEPTION_MARK; | |
1267 JavaValue result(T_OBJECT); | |
1268 JavaCalls::call_virtual(&result, | |
1269 h_throwable, | |
1270 KlassHandle(THREAD, h_throwable->klass()), | |
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1271 vmSymbols::getCause_name(), |
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1272 vmSymbols::void_throwable_signature(), |
0 | 1273 THREAD); |
1274 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1275 if (HAS_PENDING_EXCEPTION) { | |
1276 CLEAR_PENDING_EXCEPTION; | |
1277 h_throwable = Handle(); | |
1278 } else { | |
1279 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1280 if (h_throwable.not_null()) { | |
1281 st->print("Caused by: "); | |
1282 print(h_throwable, st); | |
1283 st->cr(); | |
1284 } | |
1285 } | |
1286 } | |
1287 } | |
1288 } | |
1289 | |
1290 | |
1291 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1292 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1293 Thread *thread = Thread::current(); | |
1294 Handle stream(thread, print_stream); | |
1295 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1296 if (result.is_null()) { | |
1297 print_to_stream(stream, no_stack_trace_message()); | |
1298 return; | |
1299 } | |
1300 | |
1301 while (result.not_null()) { | |
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1302 typeArrayHandle methods(thread, |
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1303 typeArrayOop(result->obj_at(trace_methods_offset))); |
0 | 1304 typeArrayHandle bcis (thread, |
1305 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1306 | |
1307 if (methods.is_null() || bcis.is_null()) { | |
1308 print_to_stream(stream, no_stack_trace_message()); | |
1309 return; | |
1310 } | |
1311 | |
1312 int length = methods()->length(); | |
1313 for (int index = 0; index < length; index++) { | |
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1314 Method* method = ((Method*)methods()->metadata_at(index)); |
0 | 1315 if (method == NULL) return; |
1316 int bci = bcis->ushort_at(index); | |
1317 print_stack_element(stream, method, bci); | |
1318 } | |
1319 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1320 } | |
1321 } | |
1322 | |
1323 // This class provides a simple wrapper over the internal structure of | |
1324 // exception backtrace to insulate users of the backtrace from needing | |
1325 // to know what it looks like. | |
1326 class BacktraceBuilder: public StackObj { | |
1327 private: | |
1328 Handle _backtrace; | |
1329 objArrayOop _head; | |
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1330 typeArrayOop _methods; |
0 | 1331 typeArrayOop _bcis; |
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1332 objArrayOop _mirrors; |
0 | 1333 int _index; |
1334 No_Safepoint_Verifier _nsv; | |
1335 | |
1336 public: | |
1337 | |
1338 enum { | |
1339 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1340 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
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1341 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
0 | 1342 trace_next_offset = java_lang_Throwable::trace_next_offset, |
1343 trace_size = java_lang_Throwable::trace_size, | |
1344 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1345 }; | |
1346 | |
1347 // constructor for new backtrace | |
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1348 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
0 | 1349 expand(CHECK); |
1350 _backtrace = _head; | |
1351 _index = 0; | |
1352 } | |
1353 | |
1354 void expand(TRAPS) { | |
1355 objArrayHandle old_head(THREAD, _head); | |
1356 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1357 | |
1358 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1359 objArrayHandle new_head(THREAD, head); | |
1360 | |
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1361 typeArrayOop methods = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
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1362 typeArrayHandle new_methods(THREAD, methods); |
0 | 1363 |
1364 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1365 typeArrayHandle new_bcis(THREAD, bcis); | |
1366 | |
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1367 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1368 objArrayHandle new_mirrors(THREAD, mirrors); |
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1369 |
0 | 1370 if (!old_head.is_null()) { |
1371 old_head->obj_at_put(trace_next_offset, new_head()); | |
1372 } | |
1373 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1374 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
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1375 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
0 | 1376 |
1377 _head = new_head(); | |
1378 _methods = new_methods(); | |
1379 _bcis = new_bcis(); | |
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1380 _mirrors = new_mirrors(); |
0 | 1381 _index = 0; |
1382 } | |
1383 | |
1384 oop backtrace() { | |
1385 return _backtrace(); | |
1386 } | |
1387 | |
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1388 inline void push(Method* method, int bci, TRAPS) { |
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1389 // Smear the -1 bci to 0 since the array only holds unsigned |
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1390 // shorts. The later line number lookup would just smear the -1 |
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1391 // to a 0 even if it could be recorded. |
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1392 if (bci == SynchronizationEntryBCI) bci = 0; |
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1393 assert(bci == (jushort)bci, "doesn't fit"); |
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1394 |
0 | 1395 if (_index >= trace_chunk_size) { |
1396 methodHandle mhandle(THREAD, method); | |
1397 expand(CHECK); | |
1398 method = mhandle(); | |
1399 } | |
1400 | |
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1401 _methods->metadata_at_put(_index, method); |
0 | 1402 _bcis->ushort_at_put(_index, bci); |
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1403 // we need to save the mirrors in the backtrace to keep the methods from |
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1404 // being unloaded if their class loader is unloaded while we still have |
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1405 // this stack trace. |
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1406 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
0 | 1407 _index++; |
1408 } | |
1409 | |
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1410 Method* current_method() { |
0 | 1411 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); |
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1412 return ((Method*)_methods->metadata_at(_index)); |
0 | 1413 } |
1414 | |
1415 jushort current_bci() { | |
1416 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1417 return _bcis->ushort_at(_index); | |
1418 } | |
1419 }; | |
1420 | |
1421 | |
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1422 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1423 if (!StackTraceInThrowable) return; |
1424 ResourceMark rm(THREAD); | |
1425 | |
1426 // Start out by clearing the backtrace for this object, in case the VM | |
1427 // runs out of memory while allocating the stack trace | |
1428 set_backtrace(throwable(), NULL); | |
1429 if (JDK_Version::is_gte_jdk14x_version()) { | |
1430 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1431 // refilling occurs | |
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1432 // This is unnecessary in 1.7+ but harmless |
0 | 1433 clear_stacktrace(throwable()); |
1434 } | |
1435 | |
1436 int max_depth = MaxJavaStackTraceDepth; | |
1437 JavaThread* thread = (JavaThread*)THREAD; | |
1438 BacktraceBuilder bt(CHECK); | |
1439 | |
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1440 // If there is no Java frame just return the method that was being called |
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1441 // with bci 0 |
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1442 if (!thread->has_last_Java_frame()) { |
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1443 if (max_depth >= 1 && method() != NULL) { |
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1444 bt.push(method(), 0, CHECK); |
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1445 set_backtrace(throwable(), bt.backtrace()); |
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1446 } |
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1447 return; |
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1448 } |
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1449 |
0 | 1450 // Instead of using vframe directly, this version of fill_in_stack_trace |
1451 // basically handles everything by hand. This significantly improved the | |
1452 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1453 // See bug 6333838 for more details. | |
1454 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1455 // trace as utilizing vframe. | |
1456 #ifdef ASSERT | |
1457 vframeStream st(thread); | |
1458 methodHandle st_method(THREAD, st.method()); | |
1459 #endif | |
1460 int total_count = 0; | |
1461 RegisterMap map(thread, false); | |
1462 int decode_offset = 0; | |
1463 nmethod* nm = NULL; | |
1464 bool skip_fillInStackTrace_check = false; | |
1465 bool skip_throwableInit_check = false; | |
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1466 bool skip_hidden = !ShowHiddenFrames; |
0 | 1467 |
1468 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
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1469 Method* method = NULL; |
0 | 1470 int bci = 0; |
1471 | |
1472 // Compiled java method case. | |
1473 if (decode_offset != 0) { | |
1474 DebugInfoReadStream stream(nm, decode_offset); | |
1475 decode_offset = stream.read_int(); | |
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1476 method = (Method*)nm->metadata_at(stream.read_int()); |
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1477 bci = stream.read_bci(); |
0 | 1478 } else { |
1479 if (fr.is_first_frame()) break; | |
1480 address pc = fr.pc(); | |
1481 if (fr.is_interpreted_frame()) { | |
1482 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1483 method = fr.interpreter_frame_method(); | |
1484 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1485 fr = fr.sender(&map); | |
1486 } else { | |
1487 CodeBlob* cb = fr.cb(); | |
1488 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1489 // but non nmethod | |
1490 fr = fr.sender(&map); | |
1491 if (cb == NULL || !cb->is_nmethod()) { | |
1492 continue; | |
1493 } | |
1494 nm = (nmethod*)cb; | |
1495 if (nm->method()->is_native()) { | |
1496 method = nm->method(); | |
1497 bci = 0; | |
1498 } else { | |
1499 PcDesc* pd = nm->pc_desc_at(pc); | |
1500 decode_offset = pd->scope_decode_offset(); | |
1501 // if decode_offset is not equal to 0, it will execute the | |
1502 // "compiled java method case" at the beginning of the loop. | |
1503 continue; | |
1504 } | |
1505 } | |
1506 } | |
1507 #ifdef ASSERT | |
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1508 assert(st_method() == method && st.bci() == bci, |
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1509 "Wrong stack trace"); |
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1510 st.next(); |
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1511 // vframeStream::method isn't GC-safe so store off a copy |
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1512 // of the Method* in case we GC. |
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1513 if (!st.at_end()) { |
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1514 st_method = st.method(); |
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1515 } |
0 | 1516 #endif |
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1517 |
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1518 // the format of the stacktrace will be: |
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1519 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1520 // - 0 or more <init> methods for the exception class (skipped) |
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1521 // - rest of the stack |
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1522 |
0 | 1523 if (!skip_fillInStackTrace_check) { |
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1524 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1525 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1526 throwable->is_a(method->method_holder())) { |
0 | 1527 continue; |
1528 } | |
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1529 else { |
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1530 skip_fillInStackTrace_check = true; // gone past them all |
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1531 } |
0 | 1532 } |
1533 if (!skip_throwableInit_check) { | |
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1534 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1535 |
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1536 // skip <init> methods of the exception class and superclasses |
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1537 // This is simlar to classic VM. |
0 | 1538 if (method->name() == vmSymbols::object_initializer_name() && |
1539 throwable->is_a(method->method_holder())) { | |
1540 continue; | |
1541 } else { | |
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1542 // there are none or we've seen them all - either way stop checking |
0 | 1543 skip_throwableInit_check = true; |
1544 } | |
1545 } | |
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1546 if (method->is_hidden()) { |
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1547 if (skip_hidden) continue; |
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1548 } |
0 | 1549 bt.push(method, bci, CHECK); |
1550 total_count++; | |
1551 } | |
1552 | |
1553 // Put completed stack trace into throwable object | |
1554 set_backtrace(throwable(), bt.backtrace()); | |
1555 } | |
1556 | |
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1557 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1558 // No-op if stack trace is disabled |
1559 if (!StackTraceInThrowable) { | |
1560 return; | |
1561 } | |
1562 | |
1563 // Disable stack traces for some preallocated out of memory errors | |
1564 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1565 return; | |
1566 } | |
1567 | |
1568 PRESERVE_EXCEPTION_MARK; | |
1569 | |
1570 JavaThread* thread = JavaThread::active(); | |
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1571 fill_in_stack_trace(throwable, method, thread); |
0 | 1572 // ignore exceptions thrown during stack trace filling |
1573 CLEAR_PENDING_EXCEPTION; | |
1574 } | |
1575 | |
1576 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1577 // Allocate stack trace - backtrace is created but not filled in | |
1578 | |
1579 // No-op if stack trace is disabled | |
1580 if (!StackTraceInThrowable) return; | |
1581 | |
1582 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1583 objArrayHandle backtrace (THREAD, h_oop); | |
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1584 typeArrayOop m_oop = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
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1585 typeArrayHandle methods (THREAD, m_oop); |
0 | 1586 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
1587 typeArrayHandle bcis(THREAD, b); | |
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1588 objArrayOop mirror_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1589 objArrayHandle mirrors (THREAD, mirror_oop); |
0 | 1590 |
1591 // backtrace has space for one chunk (next is NULL) | |
1592 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1593 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
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1594 backtrace->obj_at_put(trace_mirrors_offset, mirrors()); |
0 | 1595 set_backtrace(throwable(), backtrace()); |
1596 } | |
1597 | |
1598 | |
1599 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1600 // Fill in stack trace into preallocated backtrace (no GC) | |
1601 | |
1602 // No-op if stack trace is disabled | |
1603 if (!StackTraceInThrowable) return; | |
1604 | |
1142 | 1605 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1606 |
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1607 objArrayOop backtrace = (objArrayOop)java_lang_Throwable::backtrace(throwable()); |
0 | 1608 assert(backtrace != NULL, "backtrace not preallocated"); |
1609 | |
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1610 oop m = backtrace->obj_at(trace_methods_offset); |
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1611 typeArrayOop methods = typeArrayOop(m); |
0 | 1612 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); |
1613 | |
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1614 oop b = backtrace->obj_at(trace_bcis_offset); |
0 | 1615 typeArrayOop bcis = typeArrayOop(b); |
1616 assert(bcis != NULL, "bci array not preallocated"); | |
1617 | |
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1618 oop mr = backtrace->obj_at(trace_mirrors_offset); |
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1619 objArrayOop mirrors = objArrayOop(mr); |
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1620 assert(mirrors != NULL, "bci array not preallocated"); |
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1621 |
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1622 assert(methods->length() == bcis->length() && |
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1623 methods->length() == mirrors->length(), |
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1624 "method and bci arrays should match"); |
0 | 1625 |
1626 JavaThread* thread = JavaThread::current(); | |
1627 ResourceMark rm(thread); | |
1628 vframeStream st(thread); | |
1629 | |
1630 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1631 // methods as preallocated errors aren't created by "java" code. | |
1632 | |
1633 // fill in as much stack trace as possible | |
1634 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1635 int chunk_count = 0; | |
1636 | |
1637 for (;!st.at_end(); st.next()) { | |
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1638 // Add entry and smear the -1 bci to 0 since the array only holds |
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1639 // unsigned shorts. The later line number lookup would just smear |
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1640 // the -1 to a 0 even if it could be recorded. |
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1641 int bci = st.bci(); |
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1642 if (bci == SynchronizationEntryBCI) bci = 0; |
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1643 assert(bci == (jushort)bci, "doesn't fit"); |
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1644 bcis->ushort_at_put(chunk_count, bci); |
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1645 methods->metadata_at_put(chunk_count, st.method()); |
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1646 mirrors->obj_at_put(chunk_count, |
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1647 st.method()->method_holder()->java_mirror()); |
0 | 1648 |
1649 chunk_count++; | |
1650 | |
1651 // Bail-out for deep stacks | |
1652 if (chunk_count >= max_chunks) break; | |
1653 } | |
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1654 |
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1655 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1656 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1657 // can be removed in a JDK using this JVM version |
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1658 if (JDK_Version::is_gte_jdk17x_version()) { |
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1659 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1660 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1661 } |
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1662 |
0 | 1663 } |
1664 | |
1665 | |
1666 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1667 if (throwable == NULL) { | |
1668 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1669 } | |
1670 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1671 int depth = 0; | |
1672 if (chunk != NULL) { | |
1673 // Iterate over chunks and count full ones | |
1674 while (true) { | |
1675 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1676 if (next == NULL) break; | |
1677 depth += trace_chunk_size; | |
1678 chunk = next; | |
1679 } | |
1680 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1681 // Count element in remaining partial chunk | |
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1682 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
0 | 1683 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
1684 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1685 for (int i = 0; i < methods->length(); i++) { | |
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1686 if (methods->metadata_at(i) == NULL) break; |
0 | 1687 depth++; |
1688 } | |
1689 } | |
1690 return depth; | |
1691 } | |
1692 | |
1693 | |
1694 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1695 if (throwable == NULL) { | |
1696 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1697 } | |
1698 if (index < 0) { | |
1699 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1700 } | |
1701 // Compute how many chunks to skip and index into actual chunk | |
1702 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1703 int skip_chunks = index / trace_chunk_size; | |
1704 int chunk_index = index % trace_chunk_size; | |
1705 while (chunk != NULL && skip_chunks > 0) { | |
1706 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1707 skip_chunks--; | |
1708 } | |
1709 if (chunk == NULL) { | |
1710 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1711 } | |
1712 // Get method,bci from chunk | |
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1713 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
0 | 1714 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
1715 assert(methods != NULL && bcis != NULL, "sanity check"); | |
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1716 methodHandle method(THREAD, ((Method*)methods->metadata_at(chunk_index))); |
0 | 1717 int bci = bcis->ushort_at(chunk_index); |
1718 // Chunk can be partial full | |
1719 if (method.is_null()) { | |
1720 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1721 } | |
1722 | |
1723 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1724 return element; | |
1725 } | |
1726 | |
1727 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1728 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1729 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1730 | |
1731 // Allocate java.lang.StackTraceElement instance | |
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1732 Klass* k = SystemDictionary::StackTraceElement_klass(); |
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1733 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1734 instanceKlassHandle ik (THREAD, k); |
1735 if (ik->should_be_initialized()) { | |
1736 ik->initialize(CHECK_0); | |
1737 } | |
1738 | |
1739 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1740 // Fill in class name | |
1741 ResourceMark rm(THREAD); | |
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1742 const char* str = method->method_holder()->external_name(); |
0 | 1743 oop classname = StringTable::intern((char*) str, CHECK_0); |
1744 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1745 // Fill in method name | |
1746 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1747 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1748 // Fill in source file name | |
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1749 Symbol* source = method->method_holder()->source_file_name(); |
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1750 if (ShowHiddenFrames && source == NULL) |
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1751 source = vmSymbols::unknown_class_name(); |
0 | 1752 oop filename = StringTable::intern(source, CHECK_0); |
1753 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1754 // File in source line number | |
1755 int line_number; | |
1756 if (method->is_native()) { | |
1757 // Negative value different from -1 below, enabling Java code in | |
1758 // class java.lang.StackTraceElement to distinguish "native" from | |
1759 // "no LineNumberTable". | |
1760 line_number = -2; | |
1761 } else { | |
1762 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1763 line_number = method->line_number_from_bci(bci); | |
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1764 if (line_number == -1 && ShowHiddenFrames) { |
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1765 line_number = bci + 1000000; |
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1766 } |
0 | 1767 } |
1768 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1769 | |
1770 return element(); | |
1771 } | |
1772 | |
1773 | |
1774 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
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1775 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1776 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1777 } |
1778 | |
1779 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1781 return (jboolean) reflect->bool_field(override_offset); | |
1782 } | |
1783 | |
1784 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1786 reflect->bool_field_put(override_offset, (int) value); | |
1787 } | |
1788 | |
1789 void java_lang_reflect_Method::compute_offsets() { | |
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1790 Klass* k = SystemDictionary::reflect_Method_klass(); |
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1791 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1792 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1793 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1794 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1795 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1796 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1797 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1798 // The generic signature and annotations fields are only present in 1.5 |
1799 signature_offset = -1; | |
1800 annotations_offset = -1; | |
1801 parameter_annotations_offset = -1; | |
1802 annotation_default_offset = -1; | |
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1803 type_annotations_offset = -1; |
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1804 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1805 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1806 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1807 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
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1808 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1809 } |
1810 | |
1811 Handle java_lang_reflect_Method::create(TRAPS) { | |
1812 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1813 Klass* klass = SystemDictionary::reflect_Method_klass(); |
0 | 1814 // This class is eagerly initialized during VM initialization, since we keep a refence |
1815 // to one of the methods | |
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1816 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1817 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
0 | 1818 } |
1819 | |
1820 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1821 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1822 return reflect->obj_field(clazz_offset); | |
1823 } | |
1824 | |
1825 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1826 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1827 reflect->obj_field_put(clazz_offset, value); | |
1828 } | |
1829 | |
1830 int java_lang_reflect_Method::slot(oop reflect) { | |
1831 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1832 return reflect->int_field(slot_offset); | |
1833 } | |
1834 | |
1835 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1836 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1837 reflect->int_field_put(slot_offset, value); | |
1838 } | |
1839 | |
1840 oop java_lang_reflect_Method::name(oop method) { | |
1841 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1842 return method->obj_field(name_offset); | |
1843 } | |
1844 | |
1845 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1846 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1847 method->obj_field_put(name_offset, value); | |
1848 } | |
1849 | |
1850 oop java_lang_reflect_Method::return_type(oop method) { | |
1851 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1852 return method->obj_field(returnType_offset); | |
1853 } | |
1854 | |
1855 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1856 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1857 method->obj_field_put(returnType_offset, value); | |
1858 } | |
1859 | |
1860 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1861 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1862 return method->obj_field(parameterTypes_offset); | |
1863 } | |
1864 | |
1865 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1866 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1867 method->obj_field_put(parameterTypes_offset, value); | |
1868 } | |
1869 | |
1870 oop java_lang_reflect_Method::exception_types(oop method) { | |
1871 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1872 return method->obj_field(exceptionTypes_offset); | |
1873 } | |
1874 | |
1875 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1876 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1877 method->obj_field_put(exceptionTypes_offset, value); | |
1878 } | |
1879 | |
1880 int java_lang_reflect_Method::modifiers(oop method) { | |
1881 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1882 return method->int_field(modifiers_offset); | |
1883 } | |
1884 | |
1885 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1886 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1887 method->int_field_put(modifiers_offset, value); | |
1888 } | |
1889 | |
1890 bool java_lang_reflect_Method::has_signature_field() { | |
1891 return (signature_offset >= 0); | |
1892 } | |
1893 | |
1894 oop java_lang_reflect_Method::signature(oop method) { | |
1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1896 assert(has_signature_field(), "signature field must be present"); | |
1897 return method->obj_field(signature_offset); | |
1898 } | |
1899 | |
1900 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1901 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1902 assert(has_signature_field(), "signature field must be present"); | |
1903 method->obj_field_put(signature_offset, value); | |
1904 } | |
1905 | |
1906 bool java_lang_reflect_Method::has_annotations_field() { | |
1907 return (annotations_offset >= 0); | |
1908 } | |
1909 | |
1910 oop java_lang_reflect_Method::annotations(oop method) { | |
1911 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1912 assert(has_annotations_field(), "annotations field must be present"); | |
1913 return method->obj_field(annotations_offset); | |
1914 } | |
1915 | |
1916 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1917 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1918 assert(has_annotations_field(), "annotations field must be present"); | |
1919 method->obj_field_put(annotations_offset, value); | |
1920 } | |
1921 | |
1922 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1923 return (parameter_annotations_offset >= 0); | |
1924 } | |
1925 | |
1926 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1927 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1928 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1929 return method->obj_field(parameter_annotations_offset); | |
1930 } | |
1931 | |
1932 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1933 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1934 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1935 method->obj_field_put(parameter_annotations_offset, value); | |
1936 } | |
1937 | |
1938 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1939 return (annotation_default_offset >= 0); | |
1940 } | |
1941 | |
1942 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1943 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1944 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1945 return method->obj_field(annotation_default_offset); | |
1946 } | |
1947 | |
1948 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1949 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1950 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1951 method->obj_field_put(annotation_default_offset, value); | |
1952 } | |
1953 | |
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1954 bool java_lang_reflect_Method::has_type_annotations_field() { |
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1955 return (type_annotations_offset >= 0); |
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1956 } |
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1957 |
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1958 oop java_lang_reflect_Method::type_annotations(oop method) { |
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1959 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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1960 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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1961 return method->obj_field(type_annotations_offset); |
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1962 } |
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1963 |
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1964 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { |
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1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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1966 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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1967 method->obj_field_put(type_annotations_offset, value); |
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1968 } |
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1969 |
0 | 1970 void java_lang_reflect_Constructor::compute_offsets() { |
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1971 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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1972 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1973 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1974 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1975 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1976 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1977 // The generic signature and annotations fields are only present in 1.5 |
1978 signature_offset = -1; | |
1979 annotations_offset = -1; | |
1980 parameter_annotations_offset = -1; | |
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1981 type_annotations_offset = -1; |
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1982 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1983 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1984 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1985 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1986 } |
1987 | |
1988 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1989 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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1990 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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1991 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 1992 instanceKlassHandle klass (THREAD, k); |
1993 // Ensure it is initialized | |
1994 klass->initialize(CHECK_NH); | |
1995 return klass->allocate_instance_handle(CHECK_NH); | |
1996 } | |
1997 | |
1998 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1999 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2000 return reflect->obj_field(clazz_offset); | |
2001 } | |
2002 | |
2003 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
2004 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2005 reflect->obj_field_put(clazz_offset, value); | |
2006 } | |
2007 | |
2008 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
2009 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2010 return constructor->obj_field(parameterTypes_offset); | |
2011 } | |
2012 | |
2013 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
2014 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2015 constructor->obj_field_put(parameterTypes_offset, value); | |
2016 } | |
2017 | |
2018 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
2019 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2020 return constructor->obj_field(exceptionTypes_offset); | |
2021 } | |
2022 | |
2023 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
2024 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2025 constructor->obj_field_put(exceptionTypes_offset, value); | |
2026 } | |
2027 | |
2028 int java_lang_reflect_Constructor::slot(oop reflect) { | |
2029 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2030 return reflect->int_field(slot_offset); | |
2031 } | |
2032 | |
2033 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
2034 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2035 reflect->int_field_put(slot_offset, value); | |
2036 } | |
2037 | |
2038 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
2039 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2040 return constructor->int_field(modifiers_offset); | |
2041 } | |
2042 | |
2043 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
2044 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2045 constructor->int_field_put(modifiers_offset, value); | |
2046 } | |
2047 | |
2048 bool java_lang_reflect_Constructor::has_signature_field() { | |
2049 return (signature_offset >= 0); | |
2050 } | |
2051 | |
2052 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
2053 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2054 assert(has_signature_field(), "signature field must be present"); | |
2055 return constructor->obj_field(signature_offset); | |
2056 } | |
2057 | |
2058 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
2059 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2060 assert(has_signature_field(), "signature field must be present"); | |
2061 constructor->obj_field_put(signature_offset, value); | |
2062 } | |
2063 | |
2064 bool java_lang_reflect_Constructor::has_annotations_field() { | |
2065 return (annotations_offset >= 0); | |
2066 } | |
2067 | |
2068 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
2069 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2070 assert(has_annotations_field(), "annotations field must be present"); | |
2071 return constructor->obj_field(annotations_offset); | |
2072 } | |
2073 | |
2074 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
2075 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2076 assert(has_annotations_field(), "annotations field must be present"); | |
2077 constructor->obj_field_put(annotations_offset, value); | |
2078 } | |
2079 | |
2080 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
2081 return (parameter_annotations_offset >= 0); | |
2082 } | |
2083 | |
2084 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
2085 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2086 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2087 return method->obj_field(parameter_annotations_offset); | |
2088 } | |
2089 | |
2090 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
2091 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2092 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2093 method->obj_field_put(parameter_annotations_offset, value); | |
2094 } | |
2095 | |
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2096 bool java_lang_reflect_Constructor::has_type_annotations_field() { |
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2097 return (type_annotations_offset >= 0); |
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2098 } |
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2099 |
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2100 oop java_lang_reflect_Constructor::type_annotations(oop constructor) { |
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2101 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2102 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2103 return constructor->obj_field(type_annotations_offset); |
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2104 } |
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2105 |
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2106 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { |
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2107 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2108 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2109 constructor->obj_field_put(type_annotations_offset, value); |
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2110 } |
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2111 |
0 | 2112 void java_lang_reflect_Field::compute_offsets() { |
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2113 Klass* k = SystemDictionary::reflect_Field_klass(); |
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2114 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2115 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2116 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2117 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2118 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2119 // The generic signature and annotations fields are only present in 1.5 |
2120 signature_offset = -1; | |
2121 annotations_offset = -1; | |
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2122 type_annotations_offset = -1; |
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2123 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2124 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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2125 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2126 } |
2127 | |
2128 Handle java_lang_reflect_Field::create(TRAPS) { | |
2129 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2130 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2131 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2132 instanceKlassHandle klass (THREAD, k); |
2133 // Ensure it is initialized | |
2134 klass->initialize(CHECK_NH); | |
2135 return klass->allocate_instance_handle(CHECK_NH); | |
2136 } | |
2137 | |
2138 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2139 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2140 return reflect->obj_field(clazz_offset); | |
2141 } | |
2142 | |
2143 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2144 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2145 reflect->obj_field_put(clazz_offset, value); | |
2146 } | |
2147 | |
2148 oop java_lang_reflect_Field::name(oop field) { | |
2149 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2150 return field->obj_field(name_offset); | |
2151 } | |
2152 | |
2153 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2154 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2155 field->obj_field_put(name_offset, value); | |
2156 } | |
2157 | |
2158 oop java_lang_reflect_Field::type(oop field) { | |
2159 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2160 return field->obj_field(type_offset); | |
2161 } | |
2162 | |
2163 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2164 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2165 field->obj_field_put(type_offset, value); | |
2166 } | |
2167 | |
2168 int java_lang_reflect_Field::slot(oop reflect) { | |
2169 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2170 return reflect->int_field(slot_offset); | |
2171 } | |
2172 | |
2173 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2174 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2175 reflect->int_field_put(slot_offset, value); | |
2176 } | |
2177 | |
2178 int java_lang_reflect_Field::modifiers(oop field) { | |
2179 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2180 return field->int_field(modifiers_offset); | |
2181 } | |
2182 | |
2183 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2184 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2185 field->int_field_put(modifiers_offset, value); | |
2186 } | |
2187 | |
2188 bool java_lang_reflect_Field::has_signature_field() { | |
2189 return (signature_offset >= 0); | |
2190 } | |
2191 | |
2192 oop java_lang_reflect_Field::signature(oop field) { | |
2193 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2194 assert(has_signature_field(), "signature field must be present"); | |
2195 return field->obj_field(signature_offset); | |
2196 } | |
2197 | |
2198 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2199 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2200 assert(has_signature_field(), "signature field must be present"); | |
2201 field->obj_field_put(signature_offset, value); | |
2202 } | |
2203 | |
2204 bool java_lang_reflect_Field::has_annotations_field() { | |
2205 return (annotations_offset >= 0); | |
2206 } | |
2207 | |
2208 oop java_lang_reflect_Field::annotations(oop field) { | |
2209 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2210 assert(has_annotations_field(), "annotations field must be present"); | |
2211 return field->obj_field(annotations_offset); | |
2212 } | |
2213 | |
2214 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2215 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2216 assert(has_annotations_field(), "annotations field must be present"); | |
2217 field->obj_field_put(annotations_offset, value); | |
2218 } | |
2219 | |
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2220 bool java_lang_reflect_Field::has_type_annotations_field() { |
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2221 return (type_annotations_offset >= 0); |
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2222 } |
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2223 |
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2224 oop java_lang_reflect_Field::type_annotations(oop field) { |
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2225 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2226 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2227 return field->obj_field(type_annotations_offset); |
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2228 } |
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2229 |
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2230 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { |
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2231 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2232 assert(has_type_annotations_field(), "type_annotations field must be present"); |
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2233 field->obj_field_put(type_annotations_offset, value); |
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2234 } |
0 | 2235 |
2236 void sun_reflect_ConstantPool::compute_offsets() { | |
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2237 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2238 // This null test can be removed post beta |
2239 if (k != NULL) { | |
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2240 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
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2241 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
0 | 2242 } |
2243 } | |
2244 | |
7462
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2245 void java_lang_reflect_Parameter::compute_offsets() { |
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2246 Klass* k = SystemDictionary::reflect_Parameter_klass(); |
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2247 if(NULL != k) { |
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2248 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2249 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
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2250 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); |
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2251 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); |
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2252 } |
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2253 } |
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2254 |
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2255 Handle java_lang_reflect_Parameter::create(TRAPS) { |
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2256 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2257 Symbol* name = vmSymbols::java_lang_reflect_Parameter(); |
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2258 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
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2259 instanceKlassHandle klass (THREAD, k); |
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2260 // Ensure it is initialized |
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2261 klass->initialize(CHECK_NH); |
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2262 return klass->allocate_instance_handle(CHECK_NH); |
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2263 } |
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2264 |
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2265 oop java_lang_reflect_Parameter::name(oop param) { |
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2266 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2267 return param->obj_field(name_offset); |
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2268 } |
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2269 |
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2270 void java_lang_reflect_Parameter::set_name(oop param, oop value) { |
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2271 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2272 param->obj_field_put(name_offset, value); |
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2273 } |
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2274 |
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2275 int java_lang_reflect_Parameter::modifiers(oop param) { |
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2276 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2277 return param->int_field(modifiers_offset); |
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2278 } |
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2279 |
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2280 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { |
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2281 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2282 param->int_field_put(modifiers_offset, value); |
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2283 } |
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2284 |
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2285 int java_lang_reflect_Parameter::index(oop param) { |
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2286 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2287 return param->int_field(index_offset); |
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2288 } |
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2289 |
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2290 void java_lang_reflect_Parameter::set_index(oop param, int value) { |
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2291 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2292 param->int_field_put(index_offset, value); |
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|
2293 } |
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2294 |
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2295 oop java_lang_reflect_Parameter::executable(oop param) { |
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2296 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2297 return param->obj_field(executable_offset); |
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2298 } |
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2299 |
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2300 void java_lang_reflect_Parameter::set_executable(oop param, oop value) { |
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2301 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2302 param->obj_field_put(executable_offset, value); |
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2303 } |
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2304 |
0 | 2305 |
2306 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2307 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2308 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2309 instanceKlassHandle klass (THREAD, k); |
2310 // Ensure it is initialized | |
2311 klass->initialize(CHECK_NH); | |
2312 return klass->allocate_instance_handle(CHECK_NH); | |
2313 } | |
2314 | |
2315 | |
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2316 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
0 | 2317 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2318 oop mirror = value->pool_holder()->java_mirror(); |
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2319 // Save the mirror to get back the constant pool. |
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2320 reflect->obj_field_put(_oop_offset, mirror); |
0 | 2321 } |
2322 | |
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2323 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
0 | 2324 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2325 |
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2326 oop mirror = reflect->obj_field(_oop_offset); |
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2327 Klass* k = java_lang_Class::as_Klass(mirror); |
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2328 assert(k->oop_is_instance(), "Must be"); |
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2329 |
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2330 // Get the constant pool back from the klass. Since class redefinition |
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2331 // merges the new constant pool into the old, this is essentially the |
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2332 // same constant pool as the original. If constant pool merging is |
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2333 // no longer done in the future, this will have to change to save |
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2334 // the original. |
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2335 return InstanceKlass::cast(k)->constants(); |
0 | 2336 } |
2337 | |
2338 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
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2339 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2340 // This null test can be removed post beta |
2341 if (k != NULL) { | |
132
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2342 compute_offset(_base_offset, k, |
0 | 2343 vmSymbols::base_name(), vmSymbols::object_signature()); |
2344 } | |
2345 } | |
2346 | |
132
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2347 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2348 Klass* k = SystemDictionary::box_klass(type); |
132
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2349 if (k == NULL) return NULL; |
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2350 instanceKlassHandle h (THREAD, k); |
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2351 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2352 return h->allocate_instance(THREAD); |
0 | 2353 } |
2354 | |
2355 | |
2356 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2357 oop box = initialize_and_allocate(type, CHECK_0); |
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2358 if (box == NULL) return NULL; |
0 | 2359 switch (type) { |
2360 case T_BOOLEAN: | |
2361 box->bool_field_put(value_offset, value->z); | |
2362 break; | |
2363 case T_CHAR: | |
2364 box->char_field_put(value_offset, value->c); | |
2365 break; | |
2366 case T_FLOAT: | |
2367 box->float_field_put(value_offset, value->f); | |
2368 break; | |
2369 case T_DOUBLE: | |
165
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2370 box->double_field_put(long_value_offset, value->d); |
0 | 2371 break; |
2372 case T_BYTE: | |
2373 box->byte_field_put(value_offset, value->b); | |
2374 break; | |
2375 case T_SHORT: | |
2376 box->short_field_put(value_offset, value->s); | |
2377 break; | |
2378 case T_INT: | |
2379 box->int_field_put(value_offset, value->i); | |
2380 break; | |
2381 case T_LONG: | |
165
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2382 box->long_field_put(long_value_offset, value->j); |
0 | 2383 break; |
2384 default: | |
2385 return NULL; | |
2386 } | |
2387 return box; | |
2388 } | |
2389 | |
2390 | |
132
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2391 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2392 if (box == NULL) return T_ILLEGAL; |
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2393 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2394 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2395 return T_ILLEGAL; |
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2396 return type; |
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2397 } |
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2398 |
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2399 |
0 | 2400 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2401 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2402 switch (type) { |
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2403 case T_BOOLEAN: |
0 | 2404 value->z = box->bool_field(value_offset); |
132
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2405 break; |
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2406 case T_CHAR: |
0 | 2407 value->c = box->char_field(value_offset); |
132
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2408 break; |
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2409 case T_FLOAT: |
0 | 2410 value->f = box->float_field(value_offset); |
132
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2411 break; |
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6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2412 case T_DOUBLE: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2413 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
|
2414 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2415 case T_BYTE: |
0 | 2416 value->b = box->byte_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2417 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2418 case T_SHORT: |
0 | 2419 value->s = box->short_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2420 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2421 case T_INT: |
0 | 2422 value->i = box->int_field(value_offset); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2423 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2424 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2425 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
|
2426 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2427 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2428 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2429 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2430 return type; |
0 | 2431 } |
2432 | |
2433 | |
2434 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
|
2435 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2436 switch (type) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2437 case T_BOOLEAN: |
0 | 2438 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
|
2439 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2440 case T_CHAR: |
0 | 2441 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
|
2442 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2443 case T_FLOAT: |
0 | 2444 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
|
2445 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2446 case T_DOUBLE: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2447 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
|
2448 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2449 case T_BYTE: |
0 | 2450 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
|
2451 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2452 case T_SHORT: |
0 | 2453 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
|
2454 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2455 case T_INT: |
0 | 2456 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
|
2457 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2458 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2459 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
|
2460 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2461 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2462 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2463 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2464 return type; |
0 | 2465 } |
2466 | |
2467 | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2468 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
|
2469 switch (type) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2470 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2471 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2472 case T_BYTE: st->print("%d", value->b); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2473 case T_SHORT: st->print("%d", value->s); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2474 case T_INT: st->print("%d", value->i); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2475 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2476 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2477 case T_DOUBLE: st->print("%lf", value->d); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2478 default: st->print("type %d?", type); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2479 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2480 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2481 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2482 |
0 | 2483 // Support for java_lang_ref_Reference |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2484 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
|
2485 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2486 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
|
2487 return (HeapWord*) addr; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2488 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2489 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2490 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
|
2491 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
|
2492 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
|
2493 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2494 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
|
2495 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2496 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
|
2497 } |
0 | 2498 } |
2499 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2500 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
|
2501 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
|
2502 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
|
2503 // 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
|
2504 return (HeapWord*)addr; |
0 | 2505 } |
2506 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2507 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
|
2508 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
|
2509 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2510 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
|
2511 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2512 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
|
2513 } |
0 | 2514 } |
2515 | |
2516 | |
2517 // Support for java_lang_ref_SoftReference | |
2518 | |
2519 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2520 return ref->long_field(timestamp_offset); | |
2521 } | |
2522 | |
2523 jlong java_lang_ref_SoftReference::clock() { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2524 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
|
2525 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
|
2526 return *offset; |
0 | 2527 } |
2528 | |
2529 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
|
2530 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
|
2531 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
|
2532 *offset = value; |
0 | 2533 } |
2534 | |
2535 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2536 // Support for java_lang_invoke_MethodHandle |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2537 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2538 int java_lang_invoke_MethodHandle::_type_offset; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2539 int java_lang_invoke_MethodHandle::_form_offset; |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2540 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2541 int java_lang_invoke_MemberName::_clazz_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2542 int java_lang_invoke_MemberName::_name_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2543 int java_lang_invoke_MemberName::_type_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2544 int java_lang_invoke_MemberName::_flags_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2545 int java_lang_invoke_MemberName::_vmtarget_offset; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2546 int java_lang_invoke_MemberName::_vmloader_offset; |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2547 int java_lang_invoke_MemberName::_vmindex_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2548 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2549 int java_lang_invoke_LambdaForm::_vmentry_offset; |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2550 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2551 void java_lang_invoke_MethodHandle::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2552 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
3938 | 2553 if (klass_oop != NULL && EnableInvokeDynamic) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2554 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
twisti
parents:
6224
diff
changeset
|
2555 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
twisti
parents:
6224
diff
changeset
|
2556 if (_form_offset == 0) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2557 EnableInvokeDynamic = false; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2558 } |
710 | 2559 } |
2560 } | |
2561 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2562 void java_lang_invoke_MemberName::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2563 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
3938 | 2564 if (klass_oop != NULL && EnableInvokeDynamic) { |
2565 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2566 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2567 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2568 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2569 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2570 } |
2571 } | |
2572 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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changeset
|
2573 void java_lang_invoke_LambdaForm::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2574 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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changeset
|
2575 if (klass_oop != NULL && EnableInvokeDynamic) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
2576 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
710 | 2577 } |
2578 } | |
2579 | |
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
|
2580 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2581 return mh->obj_field(_type_offset); |
2582 } | |
2583 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
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diff
changeset
|
2584 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2585 mh->obj_field_put(_type_offset, mtype); |
2586 } | |
2587 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2588 oop java_lang_invoke_MethodHandle::form(oop mh) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2589 assert(_form_offset != 0, ""); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2590 return mh->obj_field(_form_offset); |
710 | 2591 } |
2592 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2593 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
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diff
changeset
|
2594 assert(_form_offset != 0, ""); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
2595 mh->obj_field_put(_form_offset, lform); |
710 | 2596 } |
2597 | |
2598 /// MemberName accessors | |
2599 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2600 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2601 assert(is_instance(mname), "wrong type"); |
2602 return mname->obj_field(_clazz_offset); | |
2603 } | |
2604 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
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diff
changeset
|
2605 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2606 assert(is_instance(mname), "wrong type"); |
2607 mname->obj_field_put(_clazz_offset, clazz); | |
2608 } | |
2609 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
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diff
changeset
|
2610 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2611 assert(is_instance(mname), "wrong type"); |
2612 return mname->obj_field(_name_offset); | |
2613 } | |
2614 | |
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
|
2615 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2616 assert(is_instance(mname), "wrong type"); |
2617 mname->obj_field_put(_name_offset, name); | |
2618 } | |
2619 | |
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
|
2620 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2621 assert(is_instance(mname), "wrong type"); |
2622 return mname->obj_field(_type_offset); | |
2623 } | |
2624 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2625 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2626 assert(is_instance(mname), "wrong type"); |
2627 mname->obj_field_put(_type_offset, type); | |
2628 } | |
2629 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2630 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2631 assert(is_instance(mname), "wrong type"); |
2632 return mname->int_field(_flags_offset); | |
2633 } | |
2634 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2635 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2636 assert(is_instance(mname), "wrong type"); |
2637 mname->int_field_put(_flags_offset, flags); | |
2638 } | |
2639 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
2640 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2641 assert(is_instance(mname), "wrong type"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
2642 return (Metadata*)mname->address_field(_vmtarget_offset); |
710 | 2643 } |
2644 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2645 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
710 | 2646 assert(is_instance(mname), "wrong type"); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2647 // check the type of the vmtarget |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2648 oop dependency = NULL; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2649 if (ref != NULL) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2650 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
|
2651 MN_IS_CONSTRUCTOR | |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2652 MN_IS_FIELD)) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2653 case MN_IS_METHOD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2654 case MN_IS_CONSTRUCTOR: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2655 assert(ref->is_method(), "should be a method"); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2656 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
|
2657 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2658 case MN_IS_FIELD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2659 assert(ref->is_klass(), "should be a class"); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2660 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
|
2661 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2662 default: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2663 ShouldNotReachHere(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2664 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2665 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2666 mname->address_field_put(_vmtarget_offset, (address)ref); |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2667 // Add a reference to the loader (actually mirror because anonymous classes will not have |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2668 // distinct loaders) to ensure the metadata is kept alive |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2669 // This mirror may be different than the one in clazz field. |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
2670 mname->obj_field_put(_vmloader_offset, dependency); |
710 | 2671 } |
2672 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2673 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2674 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
|
2675 return (intptr_t) mname->address_field(_vmindex_offset); |
710 | 2676 } |
2677 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2678 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
|
2679 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
|
2680 mname->address_field_put(_vmindex_offset, (address) index); |
710 | 2681 } |
2682 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2683 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
|
2684 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
|
2685 return lform->obj_field(_vmentry_offset); |
710 | 2686 } |
2687 | |
2688 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2689 // Support for java_lang_invoke_MethodType |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2690 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2691 int java_lang_invoke_MethodType::_rtype_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2692 int java_lang_invoke_MethodType::_ptypes_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2693 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2694 void java_lang_invoke_MethodType::compute_offsets() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6267
diff
changeset
|
2695 Klass* k = SystemDictionary::MethodType_klass(); |
710 | 2696 if (k != NULL) { |
2697 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2698 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2699 } | |
2700 } | |
2701 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2702 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2703 st->print("("); |
2704 objArrayOop pts = ptypes(mt); | |
2705 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2706 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2707 } | |
2708 st->print(")"); | |
2709 java_lang_Class::print_signature(rtype(mt), st); | |
2710 } | |
2711 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2712 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2713 ResourceMark rm; |
2714 stringStream buffer(128); | |
2715 print_signature(mt, &buffer); | |
2716 const char* sigstr = buffer.base(); | |
2717 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2718 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2719 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2720 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2721 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2722 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2723 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2724 return name; |
710 | 2725 } |
2726 | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2727 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2728 if (mt1 == mt2) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2729 return true; |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2730 if (rtype(mt1) != rtype(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2731 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2732 if (ptype_count(mt1) != ptype_count(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2733 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2734 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2735 if (ptype(mt1, i) != ptype(mt2, i)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2736 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2737 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2738 return true; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2739 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2740 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2741 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2742 assert(is_instance(mt), "must be a MethodType"); |
2743 return mt->obj_field(_rtype_offset); | |
2744 } | |
2745 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2746 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2747 assert(is_instance(mt), "must be a MethodType"); |
2748 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2749 } | |
2750 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2751 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2752 return ptypes(mt)->obj_at(idx); |
2753 } | |
2754 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2755 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
|
2756 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2757 } |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2758 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2759 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
|
2760 objArrayOop pts = ptypes(mt); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2761 int count = pts->length(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2762 int slots = 0; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2763 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
|
2764 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
|
2765 slots += type2size[bt]; |
710 | 2766 } |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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2767 return slots; |
710 | 2768 } |
2769 | |
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2770 int java_lang_invoke_MethodType::rtype_slot_count(oop mt) { |
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2771 BasicType bt = java_lang_Class::as_BasicType(rtype(mt)); |
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2772 return type2size[bt]; |
1793
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2773 } |
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2774 |
710 | 2775 |
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2776 // Support for java_lang_invoke_CallSite |
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2777 |
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2778 int java_lang_invoke_CallSite::_target_offset; |
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2779 |
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2780 void java_lang_invoke_CallSite::compute_offsets() { |
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2781 if (!EnableInvokeDynamic) return; |
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2782 Klass* k = SystemDictionary::CallSite_klass(); |
726
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2783 if (k != NULL) { |
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2784 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
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2785 } |
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2786 } |
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2787 |
710 | 2788 |
0 | 2789 // Support for java_security_AccessControlContext |
2790 | |
2791 int java_security_AccessControlContext::_context_offset = 0; | |
2792 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2793 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2794 | |
2795 void java_security_AccessControlContext::compute_offsets() { | |
2796 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2797 fieldDescriptor fd; | |
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2798 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
0 | 2799 |
2800 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2801 fatal("Invalid layout of java.security.AccessControlContext"); | |
2802 } | |
2803 _context_offset = fd.offset(); | |
2804 | |
2805 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2806 fatal("Invalid layout of java.security.AccessControlContext"); | |
2807 } | |
2808 _privilegedContext_offset = fd.offset(); | |
2809 | |
2810 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2811 fatal("Invalid layout of java.security.AccessControlContext"); | |
2812 } | |
2813 _isPrivileged_offset = fd.offset(); | |
2814 } | |
2815 | |
2816 | |
2817 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2818 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2819 // Ensure klass is initialized | |
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2820 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
0 | 2821 // Allocate result |
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2822 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
0 | 2823 // Fill in values |
2824 result->obj_field_put(_context_offset, context()); | |
2825 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2826 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2827 return result; | |
2828 } | |
2829 | |
2830 | |
2831 // Support for java_lang_ClassLoader | |
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2832 |
3938 | 2833 bool java_lang_ClassLoader::offsets_computed = false; |
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2834 int java_lang_ClassLoader::_loader_data_offset = -1; |
3938 | 2835 int java_lang_ClassLoader::parallelCapable_offset = -1; |
2836 | |
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2837 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
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2838 assert(loader != NULL && loader->is_oop(), "loader must be oop"); |
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2839 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
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|
2840 } |
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|
2841 |
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2842 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
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2843 return *java_lang_ClassLoader::loader_data_addr(loader); |
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|
2844 } |
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2845 |
3938 | 2846 void java_lang_ClassLoader::compute_offsets() { |
2847 assert(!offsets_computed, "offsets should be initialized only once"); | |
2848 offsets_computed = true; | |
2849 | |
2850 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
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2851 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
3938 | 2852 compute_optional_offset(parallelCapable_offset, |
2853 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
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2854 |
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2855 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
3938 | 2856 } |
0 | 2857 |
2858 oop java_lang_ClassLoader::parent(oop loader) { | |
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2859 assert(is_instance(loader), "loader must be oop"); |
0 | 2860 return loader->obj_field(parent_offset); |
2861 } | |
2862 | |
6266
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2863 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
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|
2864 assert(is_instance(loader), "loader must be oop"); |
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|
2865 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
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|
2866 oop acl = loader; |
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|
2867 debug_only(jint loop_count = 0); |
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2868 // This loop taken verbatim from ClassLoader.java: |
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|
2869 do { |
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|
2870 acl = parent(acl); |
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|
2871 if (cl == acl) { |
1d7922586cf6
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|
2872 return true; |
1d7922586cf6
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|
2873 } |
1d7922586cf6
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|
2874 assert(++loop_count > 0, "loop_count overflow"); |
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|
2875 } while (acl != NULL); |
1d7922586cf6
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|
2876 return false; |
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|
2877 } |
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|
2878 |
0 | 2879 |
3938 | 2880 // For class loader classes, parallelCapable defined |
2881 // based on non-null field | |
2882 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
2883 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
2884 if (!JDK_Version::is_gte_jdk17x_version() | |
2885 || parallelCapable_offset == -1) { | |
2886 // Default for backward compatibility is false | |
2887 return false; | |
2888 } | |
2889 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
2890 } | |
2891 | |
0 | 2892 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
2893 // Fix for 4474172; see evaluation for more details | |
2894 loader = non_reflection_class_loader(loader); | |
2895 | |
2896 oop cl = SystemDictionary::java_system_loader(); | |
2897 while(cl != NULL) { | |
2898 if (cl == loader) return true; | |
2899 cl = parent(cl); | |
2900 } | |
2901 return false; | |
2902 } | |
2903 | |
2904 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2905 if (loader != NULL) { | |
2906 // See whether this is one of the class loaders associated with | |
2907 // the generated bytecodes for reflection, and if so, "magically" | |
2908 // delegate to its parent to prevent class loading from occurring | |
2909 // in places where applications using reflection didn't expect it. | |
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2910 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2911 // This might be null in non-1.4 JDKs |
2912 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2913 return parent(loader); | |
2914 } | |
2915 } | |
2916 return loader; | |
2917 } | |
2918 | |
2919 | |
2920 // Support for java_lang_System | |
2921 int java_lang_System::in_offset_in_bytes() { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
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6725
diff
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|
2922 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2923 } |
2924 | |
2925 | |
2926 int java_lang_System::out_offset_in_bytes() { | |
6735
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7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
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|
2927 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2928 } |
2929 | |
2930 | |
2931 int java_lang_System::err_offset_in_bytes() { | |
6735
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|
2932 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2933 } |
2934 | |
2935 | |
2936 | |
3938 | 2937 int java_lang_Class::_klass_offset; |
2938 int java_lang_Class::_array_klass_offset; | |
2939 int java_lang_Class::_oop_size_offset; | |
2940 int java_lang_Class::_static_oop_field_count_offset; | |
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2941 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
0 | 2942 int java_lang_Throwable::backtrace_offset; |
2943 int java_lang_Throwable::detailMessage_offset; | |
2944 int java_lang_Throwable::cause_offset; | |
2945 int java_lang_Throwable::stackTrace_offset; | |
3820
0b80db433fcb
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diff
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2946 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 2947 int java_lang_reflect_AccessibleObject::override_offset; |
2948 int java_lang_reflect_Method::clazz_offset; | |
2949 int java_lang_reflect_Method::name_offset; | |
2950 int java_lang_reflect_Method::returnType_offset; | |
2951 int java_lang_reflect_Method::parameterTypes_offset; | |
2952 int java_lang_reflect_Method::exceptionTypes_offset; | |
2953 int java_lang_reflect_Method::slot_offset; | |
2954 int java_lang_reflect_Method::modifiers_offset; | |
2955 int java_lang_reflect_Method::signature_offset; | |
2956 int java_lang_reflect_Method::annotations_offset; | |
2957 int java_lang_reflect_Method::parameter_annotations_offset; | |
2958 int java_lang_reflect_Method::annotation_default_offset; | |
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|
2959 int java_lang_reflect_Method::type_annotations_offset; |
0 | 2960 int java_lang_reflect_Constructor::clazz_offset; |
2961 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2962 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2963 int java_lang_reflect_Constructor::slot_offset; | |
2964 int java_lang_reflect_Constructor::modifiers_offset; | |
2965 int java_lang_reflect_Constructor::signature_offset; | |
2966 int java_lang_reflect_Constructor::annotations_offset; | |
2967 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
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|
2968 int java_lang_reflect_Constructor::type_annotations_offset; |
0 | 2969 int java_lang_reflect_Field::clazz_offset; |
2970 int java_lang_reflect_Field::name_offset; | |
2971 int java_lang_reflect_Field::type_offset; | |
2972 int java_lang_reflect_Field::slot_offset; | |
2973 int java_lang_reflect_Field::modifiers_offset; | |
2974 int java_lang_reflect_Field::signature_offset; | |
2975 int java_lang_reflect_Field::annotations_offset; | |
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|
2976 int java_lang_reflect_Field::type_annotations_offset; |
7462
ade95d680b42
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|
2977 int java_lang_reflect_Parameter::name_offset; |
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|
2978 int java_lang_reflect_Parameter::modifiers_offset; |
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|
2979 int java_lang_reflect_Parameter::index_offset; |
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|
2980 int java_lang_reflect_Parameter::executable_offset; |
0 | 2981 int java_lang_boxing_object::value_offset; |
165
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|
2982 int java_lang_boxing_object::long_value_offset; |
0 | 2983 int java_lang_ref_Reference::referent_offset; |
2984 int java_lang_ref_Reference::queue_offset; | |
2985 int java_lang_ref_Reference::next_offset; | |
2986 int java_lang_ref_Reference::discovered_offset; | |
2987 int java_lang_ref_Reference::static_lock_offset; | |
2988 int java_lang_ref_Reference::static_pending_offset; | |
2989 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2990 int java_lang_ref_SoftReference::timestamp_offset; | |
2991 int java_lang_ref_SoftReference::static_clock_offset; | |
2992 int java_lang_ClassLoader::parent_offset; | |
2993 int java_lang_System::static_in_offset; | |
2994 int java_lang_System::static_out_offset; | |
2995 int java_lang_System::static_err_offset; | |
2996 int java_lang_StackTraceElement::declaringClass_offset; | |
2997 int java_lang_StackTraceElement::methodName_offset; | |
2998 int java_lang_StackTraceElement::fileName_offset; | |
2999 int java_lang_StackTraceElement::lineNumber_offset; | |
3000 int java_lang_AssertionStatusDirectives::classes_offset; | |
3001 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
3002 int java_lang_AssertionStatusDirectives::packages_offset; | |
3003 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
3004 int java_lang_AssertionStatusDirectives::deflt_offset; | |
3005 int java_nio_Buffer::_limit_offset; | |
3006 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
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3007 int sun_reflect_ConstantPool::_oop_offset; |
0 | 3008 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
3009 | |
3010 | |
3011 // Support for java_lang_StackTraceElement | |
3012 | |
3013 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
3014 element->obj_field_put(fileName_offset, value); | |
3015 } | |
3016 | |
3017 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
3018 element->obj_field_put(declaringClass_offset, value); | |
3019 } | |
3020 | |
3021 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
3022 element->obj_field_put(methodName_offset, value); | |
3023 } | |
3024 | |
3025 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
3026 element->int_field_put(lineNumber_offset, value); | |
3027 } | |
3028 | |
3029 | |
3030 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
3031 | |
3032 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
3033 o->obj_field_put(classes_offset, val); | |
3034 } | |
3035 | |
3036 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
3037 o->obj_field_put(classEnabled_offset, val); | |
3038 } | |
3039 | |
3040 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
3041 o->obj_field_put(packages_offset, val); | |
3042 } | |
3043 | |
3044 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
3045 o->obj_field_put(packageEnabled_offset, val); | |
3046 } | |
3047 | |
3048 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
3049 o->bool_field_put(deflt_offset, val); | |
3050 } | |
3051 | |
3052 | |
3053 // Support for intrinsification of java.nio.Buffer.checkIndex | |
3054 int java_nio_Buffer::limit_offset() { | |
3055 return _limit_offset; | |
3056 } | |
3057 | |
3058 | |
3059 void java_nio_Buffer::compute_offsets() { | |
6725
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6964458: Reimplement class meta-data storage to use native memory
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3060 Klass* k = SystemDictionary::nio_Buffer_klass(); |
132
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|
3061 assert(k != NULL, "must be loaded in 1.4+"); |
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|
3062 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 3063 } |
3064 | |
3065 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
3066 if (_owner_offset != 0) return; | |
3067 | |
3068 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
3069 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
6725
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3070 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
132
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|
3071 compute_offset(_owner_offset, k, |
0 | 3072 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
3073 } | |
3074 | |
3075 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
3076 assert(_owner_offset != 0, "Must be initialized"); | |
3077 return obj->obj_field(_owner_offset); | |
3078 } | |
3079 | |
3080 // Compute hard-coded offsets | |
3081 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
3082 // are not available to determine the offset_of_static_fields. | |
3083 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
changeset
|
3084 const int x = heapOopSize; |
165
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3085 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 3086 |
3087 // Throwable Class | |
3088 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3089 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3090 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3091 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
3820
0b80db433fcb
7046490: Preallocated OOME objects should obey Throwable stack trace protocol
dholmes
parents:
3795
diff
changeset
|
3092 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3093 |
3094 // java_lang_boxing_object | |
165
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3095 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3096 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3097 |
3098 // java_lang_ref_Reference: | |
3099 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3100 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3101 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3102 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3103 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3104 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3105 // Artificial fields for java_lang_ref_Reference | |
3106 // The first field is for the discovered field added in 1.4 | |
3107 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3108 | |
3109 // java_lang_ref_SoftReference Class | |
165
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3110 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3111 // Don't multiply static fields because they are always in wordSize units |
3112 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3113 | |
3114 // java_lang_ClassLoader | |
3115 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3116 | |
3117 // java_lang_System | |
3118 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3119 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3120 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
3121 | |
3122 // java_lang_StackTraceElement | |
3123 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3124 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3125 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3126 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3127 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3128 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3129 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3130 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3131 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3132 | |
3133 } | |
3134 | |
3135 | |
3136 // Compute non-hard-coded field offsets of all the classes in this file | |
3137 void JavaClasses::compute_offsets() { | |
3938 | 3138 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3139 java_lang_ClassLoader::compute_offsets(); | |
0 | 3140 java_lang_Thread::compute_offsets(); |
3141 java_lang_ThreadGroup::compute_offsets(); | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
changeset
|
3142 if (EnableInvokeDynamic) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3143 java_lang_invoke_MethodHandle::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
3144 java_lang_invoke_MemberName::compute_offsets(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
3145 java_lang_invoke_LambdaForm::compute_offsets(); |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
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diff
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|
3146 java_lang_invoke_MethodType::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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diff
changeset
|
3147 java_lang_invoke_CallSite::compute_offsets(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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diff
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|
3148 } |
0 | 3149 java_security_AccessControlContext::compute_offsets(); |
3150 // Initialize reflection classes. The layouts of these classes | |
3151 // changed with the new reflection implementation in JDK 1.4, and | |
3152 // since the Universe doesn't know what JDK version it is until this | |
3153 // point we defer computation of these offsets until now. | |
3154 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3155 java_lang_reflect_Method::compute_offsets(); | |
3156 java_lang_reflect_Constructor::compute_offsets(); | |
3157 java_lang_reflect_Field::compute_offsets(); | |
3158 if (JDK_Version::is_gte_jdk14x_version()) { | |
3159 java_nio_Buffer::compute_offsets(); | |
3160 } | |
3161 if (JDK_Version::is_gte_jdk15x_version()) { | |
3162 sun_reflect_ConstantPool::compute_offsets(); | |
3163 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3164 } | |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
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7458
diff
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|
3165 if (JDK_Version::is_jdk18x_version()) |
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
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7458
diff
changeset
|
3166 java_lang_reflect_Parameter::compute_offsets(); |
710 | 3167 |
3168 // generated interpreter code wants to know about the offsets we just computed: | |
3169 AbstractAssembler::update_delayed_values(); | |
0 | 3170 } |
3171 | |
3172 #ifndef PRODUCT | |
3173 | |
3174 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3175 // against changes in the class files | |
3176 | |
3177 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3178 EXCEPTION_MARK; | |
3179 fieldDescriptor fd; | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3180 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
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|
3181 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3182 instanceKlassHandle h_klass (THREAD, k); |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
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|
3183 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
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|
3184 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
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|
3185 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3186 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3187 return false; | |
3188 } | |
3189 if (fd.is_static()) { | |
3190 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3191 return false; | |
3192 } | |
3193 if (fd.offset() == hardcoded_offset ) { | |
3194 return true; | |
3195 } else { | |
3196 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3197 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3198 return false; | |
3199 } | |
3200 } | |
3201 | |
3202 | |
3203 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3204 EXCEPTION_MARK; | |
3205 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3206 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
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6267
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|
3207 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3208 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
3209 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3210 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3211 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3212 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3213 return false; | |
3214 } | |
3215 if (!fd.is_static()) { | |
3216 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3217 return false; | |
3218 } | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3219 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
0 | 3220 return true; |
3221 } else { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
3222 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 | 3223 return false; |
3224 } | |
3225 } | |
3226 | |
3227 | |
132
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jrose
parents:
113
diff
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|
3228 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
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|
3229 EXCEPTION_MARK; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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changeset
|
3230 fieldDescriptor fd; |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3231 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
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|
3232 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
132
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|
3233 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3234 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3235 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
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|
3236 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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jrose
parents:
113
diff
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|
3237 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
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|
3238 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3239 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3240 if (!fd.is_static() || !fd.has_initial_value()) { |
60b728ec77c1
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jrose
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113
diff
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|
3241 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3242 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3243 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3244 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
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|
3245 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
|
3246 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3247 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3248 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3249 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3250 return true; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3251 } else { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3252 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
|
3253 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3254 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3255 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3256 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
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|
3257 |
0 | 3258 // Check the hard-coded field offsets of all the classes in this file |
3259 | |
3260 void JavaClasses::check_offsets() { | |
3261 bool valid = true; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
3262 HandleMark hm; |
0 | 3263 |
3264 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3265 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3266 | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3267 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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kvn
parents:
132
diff
changeset
|
3268 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
437d03ea40b1
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kvn
parents:
132
diff
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|
3269 |
0 | 3270 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3271 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3272 | |
132
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|
3273 #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
|
3274 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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|
3275 |
0 | 3276 // java.lang.String |
3277 | |
3278 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
6057 | 3279 if (java_lang_String::has_offset_field()) { |
3280 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3281 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3282 } | |
3283 if (java_lang_String::has_hash_field()) { | |
3284 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3285 } | |
0 | 3286 |
3287 // java.lang.Class | |
3288 | |
3289 // Fake fields | |
3290 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3291 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3292 | |
3293 // java.lang.Throwable | |
3294 | |
3295 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3296 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3297 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3298 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3299 | |
3300 // Boxed primitive objects (java_lang_boxing_object) | |
3301 | |
3302 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3303 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3304 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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3305 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3306 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3307 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3308 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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3309 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3310 |
3311 // java.lang.ClassLoader | |
3312 | |
3313 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3314 | |
3315 // java.lang.System | |
3316 | |
3317 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3318 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3319 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3320 | |
3321 // java.lang.StackTraceElement | |
3322 | |
3323 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3324 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3325 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3326 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3327 | |
3328 // java.lang.ref.Reference | |
3329 | |
3330 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3331 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3332 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3333 // Fake field | |
3334 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3335 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3336 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3337 | |
3338 // java.lang.ref.SoftReference | |
3339 | |
3340 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3341 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3342 | |
3343 // java.lang.AssertionStatusDirectives | |
3344 // | |
3345 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3346 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3347 // into merlin "for some time." Without it, the vm will fail with early | |
3348 // merlin builds. | |
3349 | |
3350 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3351 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3352 const char* sig = "[Ljava/lang/String;"; | |
3353 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3354 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3355 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3356 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3357 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3358 } | |
3359 | |
3360 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3361 } | |
3362 | |
3363 #endif // PRODUCT | |
3364 | |
3938 | 3365 int InjectedField::compute_offset() { |
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3366 Klass* klass_oop = klass(); |
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3367 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
3938 | 3368 if (!may_be_java && !fs.access_flags().is_internal()) { |
3369 // Only look at injected fields | |
3370 continue; | |
3371 } | |
3372 if (fs.name() == name() && fs.signature() == signature()) { | |
3373 return fs.offset(); | |
3374 } | |
3375 } | |
3376 ResourceMark rm; | |
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3377 tty->print_cr("Invalid layout of %s at %s/%s%s", InstanceKlass::cast(klass_oop)->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : ""); |
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3378 #ifndef PRODUCT |
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3379 klass_oop->print(); |
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3380 tty->print_cr("all fields:"); |
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3381 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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3382 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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3383 } |
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3384 #endif //PRODUCT |
3938 | 3385 fatal("Invalid layout of preloaded class"); |
3386 return -1; | |
3387 } | |
3388 | |
0 | 3389 void javaClasses_init() { |
3390 JavaClasses::compute_offsets(); | |
3391 JavaClasses::check_offsets(); | |
3392 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3393 } |