Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 4530:6c6cb7be1324
bugfix
author | Christian Haeubl <christian.haeubl@oracle.com> |
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date | Wed, 08 Feb 2012 21:13:35 -0800 |
parents | e5928e7dab26 |
children | a81f60ddab06 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "code/debugInfo.hpp" | |
30 #include "code/pcDesc.hpp" | |
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31 #include "compiler/compilerOracle.hpp" |
1972 | 32 #include "interpreter/interpreter.hpp" |
33 #include "memory/oopFactory.hpp" | |
34 #include "memory/resourceArea.hpp" | |
35 #include "memory/universe.inline.hpp" | |
3938 | 36 #include "oops/fieldStreams.hpp" |
1972 | 37 #include "oops/instanceKlass.hpp" |
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38 #include "oops/instanceMirrorKlass.hpp" |
1972 | 39 #include "oops/klass.hpp" |
40 #include "oops/klassOop.hpp" | |
41 #include "oops/methodOop.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" | |
50 #include "runtime/vframe.hpp" | |
51 #include "utilities/preserveException.hpp" | |
52 #ifdef TARGET_OS_FAMILY_linux | |
53 # include "thread_linux.inline.hpp" | |
54 #endif | |
55 #ifdef TARGET_OS_FAMILY_solaris | |
56 # include "thread_solaris.inline.hpp" | |
57 #endif | |
58 #ifdef TARGET_OS_FAMILY_windows | |
59 # include "thread_windows.inline.hpp" | |
60 #endif | |
3960 | 61 #ifdef TARGET_OS_FAMILY_bsd |
62 # include "thread_bsd.inline.hpp" | |
63 #endif | |
0 | 64 |
3938 | 65 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
66 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
67 | |
68 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
69 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
70 | |
71 InjectedField JavaClasses::_injected_fields[] = { | |
72 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
73 }; | |
74 | |
75 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
76 return _injected_fields[id].compute_offset(); | |
77 } | |
78 | |
79 | |
80 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
81 *field_count = 0; | |
82 | |
83 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
84 if (sid == vmSymbols::NO_SID) { | |
85 // Only well known classes can inject fields | |
86 return NULL; | |
87 } | |
88 | |
89 int count = 0; | |
90 int start = -1; | |
91 | |
92 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
93 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
94 count++; \ | |
95 if (start == -1) start = klass##_##name##_enum; \ | |
96 } | |
97 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
98 #undef LOOKUP_INJECTED_FIELD | |
99 | |
100 if (start != -1) { | |
101 *field_count = count; | |
102 return _injected_fields + start; | |
103 } | |
104 return NULL; | |
105 } | |
106 | |
107 | |
710 | 108 static bool find_field(instanceKlass* ik, |
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109 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 110 fieldDescriptor* fd, |
111 bool allow_super = false) { | |
112 if (allow_super) | |
113 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
114 else | |
115 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
116 } | |
117 | |
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118 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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119 static void |
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120 compute_offset(int &dest_offset, |
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121 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 122 bool allow_super = false) { |
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123 fieldDescriptor fd; |
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124 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 125 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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126 ResourceMark rm; |
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127 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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128 fatal("Invalid layout of preloaded class"); |
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129 } |
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130 dest_offset = fd.offset(); |
0 | 131 } |
132 | |
133 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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134 static void |
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135 compute_optional_offset(int& dest_offset, |
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136 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 137 bool allow_super = false) { |
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138 fieldDescriptor fd; |
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139 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 140 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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141 dest_offset = fd.offset(); |
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142 } |
0 | 143 } |
144 | |
710 | 145 |
0 | 146 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
147 // Create the String object first, so there's a chance that the String | |
148 // and the char array it points to end up in the same cache line. | |
149 oop obj; | |
150 if (tenured) { | |
1142 | 151 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 152 } else { |
1142 | 153 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 154 } |
155 | |
156 // Create the char array. The String object must be handlized here | |
157 // because GC can happen as a result of the allocation attempt. | |
158 Handle h_obj(THREAD, obj); | |
159 typeArrayOop buffer; | |
160 if (tenured) { | |
161 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
162 } else { | |
163 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
164 } | |
165 | |
166 // Point the String at the char array | |
167 obj = h_obj(); | |
168 set_value(obj, buffer); | |
169 // No need to zero the offset, allocation zero'ed the entire String object | |
170 assert(offset(obj) == 0, "initial String offset should be zero"); | |
171 //set_offset(obj, 0); | |
172 set_count(obj, length); | |
173 | |
174 return h_obj; | |
175 } | |
176 | |
177 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
178 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
179 typeArrayOop buffer = value(h_obj()); | |
180 for (int index = 0; index < length; index++) { | |
181 buffer->char_at_put(index, unicode[index]); | |
182 } | |
183 return h_obj; | |
184 } | |
185 | |
186 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
187 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
188 } | |
189 | |
190 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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191 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
0 | 192 } |
193 | |
194 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
195 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_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); | |
204 Handle h_obj = basic_create(length, false, CHECK_NH); | |
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()); |
218 Handle h_obj = basic_create(length, false, CHECK_NH); | |
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); | |
302 Handle string = basic_create(length, false, CHECK_NH); | |
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_string(oop java_string) { |
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331 typeArrayOop value = java_lang_String::value(java_string); |
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332 int offset = java_lang_String::offset(java_string); |
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333 int length = java_lang_String::length(java_string); |
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334 |
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335 if (length == 0) return 0; |
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336 return hash_string(value->char_at_addr(offset), length); |
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337 } |
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338 |
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339 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 340 oop obj = java_string(); |
341 typeArrayOop value = java_lang_String::value(obj); | |
342 int offset = java_lang_String::offset(obj); | |
343 int length = java_lang_String::length(obj); | |
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344 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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345 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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346 return sym; |
0 | 347 } |
348 | |
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349 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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350 typeArrayOop value = java_lang_String::value(java_string); |
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351 int offset = java_lang_String::offset(java_string); |
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352 int length = java_lang_String::length(java_string); |
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353 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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354 return SymbolTable::probe_unicode(base, length); |
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355 } |
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356 |
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357 |
0 | 358 int java_lang_String::utf8_length(oop java_string) { |
359 typeArrayOop value = java_lang_String::value(java_string); | |
360 int offset = java_lang_String::offset(java_string); | |
361 int length = java_lang_String::length(java_string); | |
362 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
363 return UNICODE::utf8_length(position, length); | |
364 } | |
365 | |
366 char* java_lang_String::as_utf8_string(oop java_string) { | |
367 typeArrayOop value = java_lang_String::value(java_string); | |
368 int offset = java_lang_String::offset(java_string); | |
369 int length = java_lang_String::length(java_string); | |
370 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
371 return UNICODE::as_utf8(position, length); | |
372 } | |
373 | |
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374 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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375 typeArrayOop value = java_lang_String::value(java_string); |
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376 int offset = java_lang_String::offset(java_string); |
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377 int length = java_lang_String::length(java_string); |
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378 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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379 return UNICODE::as_utf8(position, length, buf, buflen); |
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380 } |
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381 |
0 | 382 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
383 typeArrayOop value = java_lang_String::value(java_string); | |
384 int offset = java_lang_String::offset(java_string); | |
385 int length = java_lang_String::length(java_string); | |
386 assert(start + len <= length, "just checking"); | |
387 jchar* position = value->char_at_addr(offset + start); | |
388 return UNICODE::as_utf8(position, len); | |
389 } | |
390 | |
391 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
392 assert(SharedSkipVerify || | |
1142 | 393 java_string->klass() == SystemDictionary::String_klass(), |
0 | 394 "must be java_string"); |
395 typeArrayOop value = java_lang_String::value(java_string); | |
396 int offset = java_lang_String::offset(java_string); | |
397 int length = java_lang_String::length(java_string); | |
398 if (length != len) { | |
399 return false; | |
400 } | |
401 for (int i = 0; i < len; i++) { | |
402 if (value->char_at(i + offset) != chars[i]) { | |
403 return false; | |
404 } | |
405 } | |
406 return true; | |
407 } | |
408 | |
409 void java_lang_String::print(Handle java_string, outputStream* st) { | |
410 oop obj = java_string(); | |
1142 | 411 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 412 typeArrayOop value = java_lang_String::value(obj); |
413 int offset = java_lang_String::offset(obj); | |
414 int length = java_lang_String::length(obj); | |
415 | |
416 int end = MIN2(length, 100); | |
417 if (value == NULL) { | |
418 // This can happen if, e.g., printing a String | |
419 // object before its initializer has been called | |
420 st->print_cr("NULL"); | |
421 } else { | |
422 st->print("\""); | |
423 for (int index = 0; index < length; index++) { | |
424 st->print("%c", value->char_at(index + offset)); | |
425 } | |
426 st->print("\""); | |
427 } | |
428 } | |
429 | |
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430 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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431 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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432 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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433 if (fd->has_initial_value()) { |
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434 BasicType t = fd->field_type(); |
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435 switch (t) { |
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436 case T_BYTE: |
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437 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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438 break; |
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439 case T_BOOLEAN: |
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440 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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441 break; |
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442 case T_CHAR: |
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443 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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444 break; |
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445 case T_SHORT: |
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446 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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447 break; |
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448 case T_INT: |
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449 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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450 break; |
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451 case T_FLOAT: |
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452 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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453 break; |
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454 case T_DOUBLE: |
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455 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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456 break; |
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457 case T_LONG: |
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458 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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459 break; |
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460 case T_OBJECT: |
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461 { |
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462 #ifdef ASSERT |
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463 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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464 assert(fd->signature() == sym, "just checking"); |
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465 #endif |
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466 oop string = fd->string_initial_value(CHECK); |
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467 mirror()->obj_field_put(fd->offset(), string); |
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468 } |
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469 break; |
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470 default: |
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471 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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472 "Illegal ConstantValue attribute in class file"); |
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473 } |
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474 } |
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475 } |
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476 |
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477 |
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478 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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479 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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480 |
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481 if (k->oop_is_instance()) { |
3938 | 482 // During bootstrap, java.lang.Class wasn't loaded so static field |
483 // offsets were computed without the size added it. Go back and | |
484 // update all the static field offsets to included the size. | |
485 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
486 if (fs.access_flags().is_static()) { | |
487 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
488 fs.set_offset(real_offset); | |
489 } | |
490 } | |
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491 } |
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492 create_mirror(k, CHECK); |
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493 } |
0 | 494 |
495 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
496 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
497 // Use this moment of initialization to cache modifier_flags also, | |
498 // to support Class.getModifiers(). Instance classes recalculate | |
499 // the cached flags after the class file is parsed, but before the | |
500 // class is put into the system dictionary. | |
501 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
502 k->set_modifier_flags(computed_modifiers); | |
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503 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
0 | 504 // Allocate mirror (java.lang.Class instance) |
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505 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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506 |
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507 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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508 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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509 |
0 | 510 // It might also have a component mirror. This mirror must already exist. |
511 if (k->oop_is_javaArray()) { | |
512 Handle comp_mirror; | |
513 if (k->oop_is_typeArray()) { | |
514 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
515 comp_mirror = Universe::java_mirror(type); | |
516 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
517 } else if (k->oop_is_objArray()) { | |
518 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
519 if (element_klass != NULL | |
520 && (Klass::cast(element_klass)->oop_is_instance() || | |
521 Klass::cast(element_klass)->oop_is_javaArray())) { | |
522 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
523 assert(comp_mirror.not_null(), "must have element mirror"); | |
524 } | |
525 // else some object array internal to the VM, like systemObjArrayKlassObj | |
526 } | |
527 if (comp_mirror.not_null()) { | |
528 // Two-way link between the array klass and its component mirror: | |
529 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
530 set_array_klass(comp_mirror(), k->as_klassOop()); | |
531 } | |
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532 } else if (k->oop_is_instance()) { |
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533 // Initialize static fields |
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534 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 535 } |
536 return mirror(); | |
537 } else { | |
538 return NULL; | |
539 } | |
540 } | |
541 | |
542 | |
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543 |
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544 int java_lang_Class::oop_size(oop java_class) { |
3938 | 545 assert(_oop_size_offset != 0, "must be set"); |
546 return java_class->int_field(_oop_size_offset); | |
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547 } |
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548 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 549 assert(_oop_size_offset != 0, "must be set"); |
550 java_class->int_field_put(_oop_size_offset, size); | |
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551 } |
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552 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 553 assert(_static_oop_field_count_offset != 0, "must be set"); |
554 return java_class->int_field(_static_oop_field_count_offset); | |
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555 } |
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556 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 557 assert(_static_oop_field_count_offset != 0, "must be set"); |
558 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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559 } |
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560 |
0 | 561 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
562 // This should be improved by adding a field at the Java level or by | |
563 // introducing a new VM klass (see comment in ClassFileParser) | |
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564 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
0 | 565 if (type != T_VOID) { |
566 klassOop aklass = Universe::typeArrayKlassObj(type); | |
567 assert(aklass != NULL, "correct bootstrap"); | |
568 set_array_klass(java_class, aklass); | |
569 } | |
4009 | 570 #ifdef ASSERT |
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571 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 572 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
573 #endif | |
0 | 574 return java_class; |
575 } | |
576 | |
577 | |
578 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
579 //%note memory_2 | |
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580 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
3938 | 581 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
0 | 582 assert(k == NULL || k->is_klass(), "type check"); |
583 return k; | |
584 } | |
585 | |
586 | |
4009 | 587 void java_lang_Class::set_klass(oop java_class, klassOop klass) { |
588 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); | |
589 java_class->obj_field_put(_klass_offset, klass); | |
590 } | |
591 | |
592 | |
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593 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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594 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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595 Symbol* name = NULL; |
665
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596 bool is_instance = false; |
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597 if (is_primitive(java_class)) { |
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598 name = vmSymbols::type_signature(primitive_type(java_class)); |
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599 } else { |
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600 klassOop k = as_klassOop(java_class); |
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601 is_instance = Klass::cast(k)->oop_is_instance(); |
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602 name = Klass::cast(k)->name(); |
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603 } |
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604 if (name == NULL) { |
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605 st->print("<null>"); |
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606 return; |
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607 } |
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608 if (is_instance) st->print("L"); |
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609 st->write((char*) name->base(), (int) name->utf8_length()); |
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610 if (is_instance) st->print(";"); |
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611 } |
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612 |
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613 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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614 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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615 Symbol* name; |
665
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616 if (is_primitive(java_class)) { |
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617 name = vmSymbols::type_signature(primitive_type(java_class)); |
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618 // Because this can create a new symbol, the caller has to decrement |
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619 // the refcount, so make adjustment here and below for symbols returned |
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620 // that are not created or incremented due to a successful lookup. |
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621 name->increment_refcount(); |
665
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622 } else { |
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623 klassOop k = as_klassOop(java_class); |
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624 if (!Klass::cast(k)->oop_is_instance()) { |
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625 name = Klass::cast(k)->name(); |
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626 name->increment_refcount(); |
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627 } else { |
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628 ResourceMark rm; |
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629 const char* sigstr = Klass::cast(k)->signature_name(); |
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630 int siglen = (int) strlen(sigstr); |
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631 if (!intern_if_not_found) { |
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632 name = SymbolTable::probe(sigstr, siglen); |
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633 } else { |
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634 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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635 } |
665
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636 } |
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637 } |
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638 return name; |
665
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639 } |
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640 |
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641 |
0 | 642 klassOop java_lang_Class::array_klass(oop java_class) { |
3938 | 643 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 644 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
645 return k; | |
646 } | |
647 | |
648 | |
649 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
650 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
3938 | 651 java_class->obj_field_put(_array_klass_offset, klass); |
0 | 652 } |
653 | |
654 | |
655 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
3938 | 656 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
0 | 657 assert(constructor == NULL || constructor->is_method(), "should be method"); |
658 return methodOop(constructor); | |
659 } | |
660 | |
661 | |
662 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
663 assert(constructor->is_method(), "should be method"); | |
3938 | 664 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
0 | 665 } |
666 | |
667 | |
668 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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669 // should assert: |
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670 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
3938 | 671 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
0 | 672 return k == NULL; |
673 } | |
674 | |
675 | |
676 BasicType java_lang_Class::primitive_type(oop java_class) { | |
677 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
3938 | 678 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 679 BasicType type = T_VOID; |
680 if (ak != NULL) { | |
681 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
682 type = arrayKlass::cast(ak)->element_type(); | |
683 } else { | |
684 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
685 } | |
686 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
687 return type; | |
688 } | |
689 | |
665
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690 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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691 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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692 if (is_primitive(java_class)) { |
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693 if (reference_klass != NULL) |
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694 (*reference_klass) = NULL; |
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695 return primitive_type(java_class); |
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696 } else { |
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697 if (reference_klass != NULL) |
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698 (*reference_klass) = as_klassOop(java_class); |
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699 return T_OBJECT; |
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700 } |
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701 } |
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702 |
0 | 703 |
704 oop java_lang_Class::primitive_mirror(BasicType t) { | |
705 oop mirror = Universe::java_mirror(t); | |
1142 | 706 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 707 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
708 return mirror; | |
709 } | |
710 | |
711 bool java_lang_Class::offsets_computed = false; | |
712 int java_lang_Class::classRedefinedCount_offset = -1; | |
713 | |
714 void java_lang_Class::compute_offsets() { | |
715 assert(!offsets_computed, "offsets should be initialized only once"); | |
716 offsets_computed = true; | |
717 | |
3938 | 718 klassOop klass_oop = SystemDictionary::Class_klass(); |
0 | 719 // The classRedefinedCount field is only present starting in 1.5, |
720 // so don't go fatal. | |
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721 compute_optional_offset(classRedefinedCount_offset, |
3938 | 722 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
723 | |
724 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 725 } |
726 | |
727 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
728 if (!JDK_Version::is_gte_jdk15x_version() | |
729 || classRedefinedCount_offset == -1) { | |
730 // The classRedefinedCount field is only present starting in 1.5. | |
731 // If we don't have an offset for it then just return -1 as a marker. | |
732 return -1; | |
733 } | |
734 | |
735 return the_class_mirror->int_field(classRedefinedCount_offset); | |
736 } | |
737 | |
738 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
739 if (!JDK_Version::is_gte_jdk15x_version() | |
740 || classRedefinedCount_offset == -1) { | |
741 // The classRedefinedCount field is only present starting in 1.5. | |
742 // If we don't have an offset for it then nothing to set. | |
743 return; | |
744 } | |
745 | |
746 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
747 } | |
748 | |
749 | |
750 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
751 // platform thread structure, and a eetop offset which was used for thread | |
752 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
753 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
754 // instead of the privateInfo_offset. | |
755 // | |
756 // Note: The stackSize field is only present starting in 1.4. | |
757 | |
758 int java_lang_Thread::_name_offset = 0; | |
759 int java_lang_Thread::_group_offset = 0; | |
760 int java_lang_Thread::_contextClassLoader_offset = 0; | |
761 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
762 int java_lang_Thread::_priority_offset = 0; | |
763 int java_lang_Thread::_eetop_offset = 0; | |
764 int java_lang_Thread::_daemon_offset = 0; | |
765 int java_lang_Thread::_stillborn_offset = 0; | |
766 int java_lang_Thread::_stackSize_offset = 0; | |
767 int java_lang_Thread::_tid_offset = 0; | |
768 int java_lang_Thread::_thread_status_offset = 0; | |
769 int java_lang_Thread::_park_blocker_offset = 0; | |
770 int java_lang_Thread::_park_event_offset = 0 ; | |
771 | |
772 | |
773 void java_lang_Thread::compute_offsets() { | |
774 assert(_group_offset == 0, "offsets should be initialized only once"); | |
775 | |
1142 | 776 klassOop k = SystemDictionary::Thread_klass(); |
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777 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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778 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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779 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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780 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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781 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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782 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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783 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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784 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 785 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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786 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 787 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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788 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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789 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 790 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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791 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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792 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 793 vmSymbols::long_signature()); |
794 } | |
795 | |
796 | |
797 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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798 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 799 } |
800 | |
801 | |
802 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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803 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 804 } |
805 | |
806 | |
807 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
808 oop name = java_thread->obj_field(_name_offset); | |
809 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
810 return typeArrayOop(name); | |
811 } | |
812 | |
813 | |
814 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
815 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
816 java_thread->obj_field_put(_name_offset, name); | |
817 } | |
818 | |
819 | |
820 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
821 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
822 } | |
823 | |
824 | |
825 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
826 java_thread->int_field_put(_priority_offset, priority); | |
827 } | |
828 | |
829 | |
830 oop java_lang_Thread::threadGroup(oop java_thread) { | |
831 return java_thread->obj_field(_group_offset); | |
832 } | |
833 | |
834 | |
835 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
836 return java_thread->bool_field(_stillborn_offset) != 0; | |
837 } | |
838 | |
839 | |
840 // We never have reason to turn the stillborn bit off | |
841 void java_lang_Thread::set_stillborn(oop java_thread) { | |
842 java_thread->bool_field_put(_stillborn_offset, true); | |
843 } | |
844 | |
845 | |
846 bool java_lang_Thread::is_alive(oop java_thread) { | |
847 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
848 return (thr != NULL); | |
849 } | |
850 | |
851 | |
852 bool java_lang_Thread::is_daemon(oop java_thread) { | |
853 return java_thread->bool_field(_daemon_offset) != 0; | |
854 } | |
855 | |
856 | |
857 void java_lang_Thread::set_daemon(oop java_thread) { | |
858 java_thread->bool_field_put(_daemon_offset, true); | |
859 } | |
860 | |
861 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
862 return java_thread->obj_field(_contextClassLoader_offset); | |
863 } | |
864 | |
865 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
866 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
867 } | |
868 | |
869 | |
870 jlong java_lang_Thread::stackSize(oop java_thread) { | |
871 // The stackSize field is only present starting in 1.4 | |
872 if (_stackSize_offset > 0) { | |
873 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
874 return java_thread->long_field(_stackSize_offset); | |
875 } else { | |
876 return 0; | |
877 } | |
878 } | |
879 | |
880 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
881 void java_lang_Thread::set_thread_status(oop java_thread, | |
882 java_lang_Thread::ThreadStatus status) { | |
883 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
884 // The threadStatus is only present starting in 1.5 | |
885 if (_thread_status_offset > 0) { | |
886 java_thread->int_field_put(_thread_status_offset, status); | |
887 } | |
888 } | |
889 | |
890 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
891 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
892 assert(Thread::current()->is_VM_thread() || | |
893 JavaThread::current()->thread_state() == _thread_in_vm, | |
894 "Java Thread is not running in vm"); | |
895 // The threadStatus is only present starting in 1.5 | |
896 if (_thread_status_offset > 0) { | |
897 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
898 } else { | |
899 // All we can easily figure out is if it is alive, but that is | |
900 // enough info for a valid unknown status. | |
901 // These aren't restricted to valid set ThreadStatus values, so | |
902 // use JVMTI values and cast. | |
903 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
904 if (thr == NULL) { | |
905 // the thread hasn't run yet or is in the process of exiting | |
906 return NEW; | |
907 } | |
908 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
909 } | |
910 } | |
911 | |
912 | |
913 jlong java_lang_Thread::thread_id(oop java_thread) { | |
914 // The thread ID field is only present starting in 1.5 | |
915 if (_tid_offset > 0) { | |
916 return java_thread->long_field(_tid_offset); | |
917 } else { | |
918 return 0; | |
919 } | |
920 } | |
921 | |
922 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 923 assert(JDK_Version::current().supports_thread_park_blocker() && |
924 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 925 |
926 if (_park_blocker_offset > 0) { | |
927 return java_thread->obj_field(_park_blocker_offset); | |
928 } | |
929 | |
930 return NULL; | |
931 } | |
932 | |
933 jlong java_lang_Thread::park_event(oop java_thread) { | |
934 if (_park_event_offset > 0) { | |
935 return java_thread->long_field(_park_event_offset); | |
936 } | |
937 return 0; | |
938 } | |
939 | |
940 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
941 if (_park_event_offset > 0) { | |
942 java_thread->long_field_put(_park_event_offset, ptr); | |
943 return true; | |
944 } | |
945 return false; | |
946 } | |
947 | |
948 | |
949 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
950 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
951 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
952 switch (status) { | |
953 case NEW : return "NEW"; | |
954 case RUNNABLE : return "RUNNABLE"; | |
955 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
956 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
957 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
958 case PARKED : return "WAITING (parking)"; | |
959 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
960 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
961 case TERMINATED : return "TERMINATED"; | |
962 default : return "UNKNOWN"; | |
963 }; | |
964 } | |
965 int java_lang_ThreadGroup::_parent_offset = 0; | |
966 int java_lang_ThreadGroup::_name_offset = 0; | |
967 int java_lang_ThreadGroup::_threads_offset = 0; | |
968 int java_lang_ThreadGroup::_groups_offset = 0; | |
969 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
970 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
971 int java_lang_ThreadGroup::_daemon_offset = 0; | |
972 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
973 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
974 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
975 | |
976 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
977 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
978 return java_thread_group->obj_field(_parent_offset); | |
979 } | |
980 | |
981 // ("name as oop" accessor is not necessary) | |
982 | |
983 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
984 oop name = java_thread_group->obj_field(_name_offset); | |
985 // ThreadGroup.name can be null | |
986 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
987 } | |
988 | |
989 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
990 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
991 return java_thread_group->int_field(_nthreads_offset); | |
992 } | |
993 | |
994 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
995 oop threads = java_thread_group->obj_field(_threads_offset); | |
996 assert(threads != NULL, "threadgroups should have threads"); | |
997 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
998 return objArrayOop(threads); | |
999 } | |
1000 | |
1001 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1002 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1003 return java_thread_group->int_field(_ngroups_offset); | |
1004 } | |
1005 | |
1006 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1007 oop groups = java_thread_group->obj_field(_groups_offset); | |
1008 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1009 return objArrayOop(groups); | |
1010 } | |
1011 | |
1012 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1013 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1014 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1015 } | |
1016 | |
1017 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1018 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1019 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1020 } | |
1021 | |
1022 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1023 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1024 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1025 } | |
1026 | |
1027 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1028 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1029 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1030 } | |
1031 | |
1032 void java_lang_ThreadGroup::compute_offsets() { | |
1033 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1034 | |
1142 | 1035 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 1036 |
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1037 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1038 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1039 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1040 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1041 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1042 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1043 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1044 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1045 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1046 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1047 } |
1048 | |
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1049 oop java_lang_Throwable::unassigned_stacktrace() { |
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1050 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1051 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1052 if (UseCompressedOops) { |
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1053 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1054 } else { |
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1055 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1056 } |
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1057 } |
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1058 |
0 | 1059 oop java_lang_Throwable::backtrace(oop throwable) { |
1060 return throwable->obj_field_acquire(backtrace_offset); | |
1061 } | |
1062 | |
1063 | |
1064 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1065 throwable->release_obj_field_put(backtrace_offset, value); | |
1066 } | |
1067 | |
1068 | |
1069 oop java_lang_Throwable::message(oop throwable) { | |
1070 return throwable->obj_field(detailMessage_offset); | |
1071 } | |
1072 | |
1073 | |
1074 oop java_lang_Throwable::message(Handle throwable) { | |
1075 return throwable->obj_field(detailMessage_offset); | |
1076 } | |
1077 | |
1078 | |
1079 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1080 throwable->obj_field_put(detailMessage_offset, value); | |
1081 } | |
1082 | |
1083 | |
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1084 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1085 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1086 } |
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1087 |
0 | 1088 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1089 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1090 set_stacktrace(throwable, NULL); |
0 | 1091 } |
1092 | |
1093 | |
1094 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1095 ResourceMark rm; | |
1096 klassOop k = throwable->klass(); | |
1097 assert(k != NULL, "just checking"); | |
1098 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1099 oop msg = message(throwable); | |
1100 if (msg != NULL) { | |
1101 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1102 } | |
1103 } | |
1104 | |
1105 | |
1106 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1107 ResourceMark rm; | |
1108 klassOop k = throwable->klass(); | |
1109 assert(k != NULL, "just checking"); | |
1110 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1111 oop msg = message(throwable); | |
1112 if (msg != NULL) { | |
1113 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1114 } | |
1115 } | |
1116 | |
1117 // Print stack trace element to resource allocated buffer | |
1118 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
1119 // Get strings and string lengths | |
1120 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
1121 const char* klass_name = klass->external_name(); | |
1122 int buf_len = (int)strlen(klass_name); | |
1123 char* source_file_name; | |
1124 if (klass->source_file_name() == NULL) { | |
1125 source_file_name = NULL; | |
1126 } else { | |
1127 source_file_name = klass->source_file_name()->as_C_string(); | |
1128 buf_len += (int)strlen(source_file_name); | |
1129 } | |
1130 char* method_name = method->name()->as_C_string(); | |
1131 buf_len += (int)strlen(method_name); | |
1132 | |
1133 // Allocate temporary buffer with extra space for formatting and line number | |
1134 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1135 | |
1136 // Print stack trace line in buffer | |
1137 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1138 if (method->is_native()) { | |
1139 strcat(buf, "(Native Method)"); | |
1140 } else { | |
1141 int line_number = method->line_number_from_bci(bci); | |
1142 if (source_file_name != NULL && (line_number != -1)) { | |
1143 // Sourcename and linenumber | |
1144 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1145 } else if (source_file_name != NULL) { | |
1146 // Just sourcename | |
1147 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1148 } else { | |
1149 // Neither soucename and linenumber | |
1150 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1151 } | |
1152 nmethod* nm = method->code(); | |
1153 if (WizardMode && nm != NULL) { | |
3960 | 1154 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
0 | 1155 } |
1156 } | |
1157 | |
1158 return buf; | |
1159 } | |
1160 | |
1161 | |
1162 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1163 ResourceMark rm; | |
1164 char* buf = print_stack_element_to_buffer(method, bci); | |
1165 print_to_stream(stream, buf); | |
1166 } | |
1167 | |
1168 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1169 ResourceMark rm; | |
1170 char* buf = print_stack_element_to_buffer(method, bci); | |
1171 st->print_cr("%s", buf); | |
1172 } | |
1173 | |
1174 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1175 if (stream.is_null()) { | |
1176 tty->print_cr("%s", str); | |
1177 } else { | |
1178 EXCEPTION_MARK; | |
1179 JavaValue result(T_VOID); | |
1180 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1181 if (!HAS_PENDING_EXCEPTION) { | |
1182 JavaCalls::call_virtual(&result, | |
1183 stream, | |
1184 KlassHandle(THREAD, stream->klass()), | |
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6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
1185 vmSymbols::println_name(), |
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diff
changeset
|
1186 vmSymbols::char_array_void_signature(), |
0 | 1187 arg, |
1188 THREAD); | |
1189 } | |
1190 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1191 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1192 } | |
1193 | |
1194 } | |
1195 | |
1196 | |
1197 const char* java_lang_Throwable::no_stack_trace_message() { | |
1198 return "\t<<no stack trace available>>"; | |
1199 } | |
1200 | |
1201 | |
1202 // Currently used only for exceptions occurring during startup | |
1203 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1204 Thread *THREAD = Thread::current(); | |
1205 Handle h_throwable(THREAD, throwable); | |
1206 while (h_throwable.not_null()) { | |
1207 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1208 if (result.is_null()) { | |
1209 st->print_cr(no_stack_trace_message()); | |
1210 return; | |
1211 } | |
1212 | |
1213 while (result.not_null()) { | |
1214 objArrayHandle methods (THREAD, | |
1215 objArrayOop(result->obj_at(trace_methods_offset))); | |
1216 typeArrayHandle bcis (THREAD, | |
1217 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1218 | |
1219 if (methods.is_null() || bcis.is_null()) { | |
1220 st->print_cr(no_stack_trace_message()); | |
1221 return; | |
1222 } | |
1223 | |
1224 int length = methods()->length(); | |
1225 for (int index = 0; index < length; index++) { | |
1226 methodOop method = methodOop(methods()->obj_at(index)); | |
1227 if (method == NULL) goto handle_cause; | |
1228 int bci = bcis->ushort_at(index); | |
1229 print_stack_element(st, method, bci); | |
1230 } | |
1231 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1232 } | |
1233 handle_cause: | |
1234 { | |
1235 EXCEPTION_MARK; | |
1236 JavaValue result(T_OBJECT); | |
1237 JavaCalls::call_virtual(&result, | |
1238 h_throwable, | |
1239 KlassHandle(THREAD, h_throwable->klass()), | |
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diff
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|
1240 vmSymbols::getCause_name(), |
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|
1241 vmSymbols::void_throwable_signature(), |
0 | 1242 THREAD); |
1243 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1244 if (HAS_PENDING_EXCEPTION) { | |
1245 CLEAR_PENDING_EXCEPTION; | |
1246 h_throwable = Handle(); | |
1247 } else { | |
1248 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1249 if (h_throwable.not_null()) { | |
1250 st->print("Caused by: "); | |
1251 print(h_throwable, st); | |
1252 st->cr(); | |
1253 } | |
1254 } | |
1255 } | |
1256 } | |
1257 } | |
1258 | |
1259 | |
1260 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1261 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1262 Thread *thread = Thread::current(); | |
1263 Handle stream(thread, print_stream); | |
1264 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1265 if (result.is_null()) { | |
1266 print_to_stream(stream, no_stack_trace_message()); | |
1267 return; | |
1268 } | |
1269 | |
1270 while (result.not_null()) { | |
1271 objArrayHandle methods (thread, | |
1272 objArrayOop(result->obj_at(trace_methods_offset))); | |
1273 typeArrayHandle bcis (thread, | |
1274 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1275 | |
1276 if (methods.is_null() || bcis.is_null()) { | |
1277 print_to_stream(stream, no_stack_trace_message()); | |
1278 return; | |
1279 } | |
1280 | |
1281 int length = methods()->length(); | |
1282 for (int index = 0; index < length; index++) { | |
1283 methodOop method = methodOop(methods()->obj_at(index)); | |
1284 if (method == NULL) return; | |
1285 int bci = bcis->ushort_at(index); | |
1286 print_stack_element(stream, method, bci); | |
1287 } | |
1288 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1289 } | |
1290 } | |
1291 | |
1292 // This class provides a simple wrapper over the internal structure of | |
1293 // exception backtrace to insulate users of the backtrace from needing | |
1294 // to know what it looks like. | |
1295 class BacktraceBuilder: public StackObj { | |
1296 private: | |
1297 Handle _backtrace; | |
1298 objArrayOop _head; | |
1299 objArrayOop _methods; | |
1300 typeArrayOop _bcis; | |
1301 int _index; | |
1302 No_Safepoint_Verifier _nsv; | |
1303 | |
1304 public: | |
1305 | |
1306 enum { | |
1307 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1308 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1309 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1310 trace_size = java_lang_Throwable::trace_size, | |
1311 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1312 }; | |
1313 | |
1314 // constructor for new backtrace | |
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1315 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
0 | 1316 expand(CHECK); |
1317 _backtrace = _head; | |
1318 _index = 0; | |
1319 } | |
1320 | |
1321 void expand(TRAPS) { | |
1322 objArrayHandle old_head(THREAD, _head); | |
1323 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1324 | |
1325 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1326 objArrayHandle new_head(THREAD, head); | |
1327 | |
1328 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1329 objArrayHandle new_methods(THREAD, methods); | |
1330 | |
1331 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1332 typeArrayHandle new_bcis(THREAD, bcis); | |
1333 | |
1334 if (!old_head.is_null()) { | |
1335 old_head->obj_at_put(trace_next_offset, new_head()); | |
1336 } | |
1337 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1338 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1339 | |
1340 _head = new_head(); | |
1341 _methods = new_methods(); | |
1342 _bcis = new_bcis(); | |
1343 _index = 0; | |
1344 } | |
1345 | |
1346 oop backtrace() { | |
1347 return _backtrace(); | |
1348 } | |
1349 | |
1350 inline void push(methodOop method, short bci, TRAPS) { | |
1351 if (_index >= trace_chunk_size) { | |
1352 methodHandle mhandle(THREAD, method); | |
1353 expand(CHECK); | |
1354 method = mhandle(); | |
1355 } | |
1356 | |
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1357 _methods->obj_at_put(_index, method); |
0 | 1358 _bcis->ushort_at_put(_index, bci); |
1359 _index++; | |
1360 } | |
1361 | |
1362 methodOop current_method() { | |
1363 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1364 return methodOop(_methods->obj_at(_index)); | |
1365 } | |
1366 | |
1367 jushort current_bci() { | |
1368 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1369 return _bcis->ushort_at(_index); | |
1370 } | |
1371 }; | |
1372 | |
1373 | |
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1374 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1375 if (!StackTraceInThrowable) return; |
1376 ResourceMark rm(THREAD); | |
1377 | |
1378 // Start out by clearing the backtrace for this object, in case the VM | |
1379 // runs out of memory while allocating the stack trace | |
1380 set_backtrace(throwable(), NULL); | |
1381 if (JDK_Version::is_gte_jdk14x_version()) { | |
1382 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1383 // refilling occurs | |
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1384 // This is unnecessary in 1.7+ but harmless |
0 | 1385 clear_stacktrace(throwable()); |
1386 } | |
1387 | |
1388 int max_depth = MaxJavaStackTraceDepth; | |
1389 JavaThread* thread = (JavaThread*)THREAD; | |
1390 BacktraceBuilder bt(CHECK); | |
1391 | |
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1392 // If there is no Java frame just return the method that was being called |
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1393 // with bci 0 |
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1394 if (!thread->has_last_Java_frame()) { |
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1395 if (max_depth >= 1 && method() != NULL) { |
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1396 bt.push(method(), 0, CHECK); |
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1397 set_backtrace(throwable(), bt.backtrace()); |
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1398 } |
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|
1399 return; |
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|
1400 } |
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1401 |
0 | 1402 // Instead of using vframe directly, this version of fill_in_stack_trace |
1403 // basically handles everything by hand. This significantly improved the | |
1404 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1405 // See bug 6333838 for more details. | |
1406 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1407 // trace as utilizing vframe. | |
1408 #ifdef ASSERT | |
1409 vframeStream st(thread); | |
1410 methodHandle st_method(THREAD, st.method()); | |
1411 #endif | |
1412 int total_count = 0; | |
1413 RegisterMap map(thread, false); | |
1414 int decode_offset = 0; | |
1415 nmethod* nm = NULL; | |
1416 bool skip_fillInStackTrace_check = false; | |
1417 bool skip_throwableInit_check = false; | |
1418 | |
1419 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1420 methodOop method = NULL; | |
1421 int bci = 0; | |
1422 | |
1423 // Compiled java method case. | |
1424 if (decode_offset != 0) { | |
1425 DebugInfoReadStream stream(nm, decode_offset); | |
1426 decode_offset = stream.read_int(); | |
1427 method = (methodOop)nm->oop_at(stream.read_int()); | |
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diff
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|
1428 bci = stream.read_bci(); |
0 | 1429 } else { |
1430 if (fr.is_first_frame()) break; | |
1431 address pc = fr.pc(); | |
1432 if (fr.is_interpreted_frame()) { | |
1433 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1434 method = fr.interpreter_frame_method(); | |
1435 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1436 fr = fr.sender(&map); | |
1437 } else { | |
1438 CodeBlob* cb = fr.cb(); | |
1439 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1440 // but non nmethod | |
1441 fr = fr.sender(&map); | |
1442 if (cb == NULL || !cb->is_nmethod()) { | |
1443 continue; | |
1444 } | |
1445 nm = (nmethod*)cb; | |
1446 if (nm->method()->is_native()) { | |
1447 method = nm->method(); | |
1448 bci = 0; | |
1449 } else { | |
1450 PcDesc* pd = nm->pc_desc_at(pc); | |
1451 decode_offset = pd->scope_decode_offset(); | |
1452 // if decode_offset is not equal to 0, it will execute the | |
1453 // "compiled java method case" at the beginning of the loop. | |
1454 continue; | |
1455 } | |
1456 } | |
1457 } | |
1458 #ifdef ASSERT | |
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1459 assert(st_method() == method && st.bci() == bci, |
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diff
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1460 "Wrong stack trace"); |
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diff
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|
1461 st.next(); |
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|
1462 // vframeStream::method isn't GC-safe so store off a copy |
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diff
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|
1463 // of the methodOop in case we GC. |
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1464 if (!st.at_end()) { |
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1465 st_method = st.method(); |
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|
1466 } |
0 | 1467 #endif |
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|
1468 |
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1469 // the format of the stacktrace will be: |
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1470 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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|
1471 // - 0 or more <init> methods for the exception class (skipped) |
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diff
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1472 // - rest of the stack |
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1473 |
0 | 1474 if (!skip_fillInStackTrace_check) { |
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1475 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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|
1476 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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|
1477 throwable->is_a(method->method_holder())) { |
0 | 1478 continue; |
1479 } | |
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diff
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|
1480 else { |
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|
1481 skip_fillInStackTrace_check = true; // gone past them all |
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|
1482 } |
0 | 1483 } |
1484 if (!skip_throwableInit_check) { | |
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|
1485 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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|
1486 |
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1487 // skip <init> methods of the exception class and superclasses |
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|
1488 // This is simlar to classic VM. |
0 | 1489 if (method->name() == vmSymbols::object_initializer_name() && |
1490 throwable->is_a(method->method_holder())) { | |
1491 continue; | |
1492 } else { | |
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1493 // there are none or we've seen them all - either way stop checking |
0 | 1494 skip_throwableInit_check = true; |
1495 } | |
1496 } | |
1497 bt.push(method, bci, CHECK); | |
1498 total_count++; | |
1499 } | |
1500 | |
1501 // Put completed stack trace into throwable object | |
1502 set_backtrace(throwable(), bt.backtrace()); | |
1503 } | |
1504 | |
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diff
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1505 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1506 // No-op if stack trace is disabled |
1507 if (!StackTraceInThrowable) { | |
1508 return; | |
1509 } | |
1510 | |
1511 // Disable stack traces for some preallocated out of memory errors | |
1512 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1513 return; | |
1514 } | |
1515 | |
1516 PRESERVE_EXCEPTION_MARK; | |
1517 | |
1518 JavaThread* thread = JavaThread::active(); | |
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1519 fill_in_stack_trace(throwable, method, thread); |
0 | 1520 // ignore exceptions thrown during stack trace filling |
1521 CLEAR_PENDING_EXCEPTION; | |
1522 } | |
1523 | |
1524 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1525 // Allocate stack trace - backtrace is created but not filled in | |
1526 | |
1527 // No-op if stack trace is disabled | |
1528 if (!StackTraceInThrowable) return; | |
1529 | |
1530 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1531 objArrayHandle backtrace (THREAD, h_oop); | |
1532 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1533 objArrayHandle methods (THREAD, m_oop); | |
1534 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1535 typeArrayHandle bcis(THREAD, b); | |
1536 | |
1537 // backtrace has space for one chunk (next is NULL) | |
1538 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1539 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1540 set_backtrace(throwable(), backtrace()); | |
1541 } | |
1542 | |
1543 | |
1544 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1545 // Fill in stack trace into preallocated backtrace (no GC) | |
1546 | |
1547 // No-op if stack trace is disabled | |
1548 if (!StackTraceInThrowable) return; | |
1549 | |
1142 | 1550 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1551 |
1552 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1553 assert(backtrace != NULL, "backtrace not preallocated"); | |
1554 | |
1555 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1556 objArrayOop methods = objArrayOop(m); | |
1557 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1558 | |
1559 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1560 typeArrayOop bcis = typeArrayOop(b); | |
1561 assert(bcis != NULL, "bci array not preallocated"); | |
1562 | |
1563 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1564 | |
1565 JavaThread* thread = JavaThread::current(); | |
1566 ResourceMark rm(thread); | |
1567 vframeStream st(thread); | |
1568 | |
1569 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1570 // methods as preallocated errors aren't created by "java" code. | |
1571 | |
1572 // fill in as much stack trace as possible | |
1573 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1574 int chunk_count = 0; | |
1575 | |
1576 for (;!st.at_end(); st.next()) { | |
1577 // add element | |
1578 bcis->ushort_at_put(chunk_count, st.bci()); | |
1579 methods->obj_at_put(chunk_count, st.method()); | |
1580 | |
1581 chunk_count++; | |
1582 | |
1583 // Bail-out for deep stacks | |
1584 if (chunk_count >= max_chunks) break; | |
1585 } | |
3820
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1586 |
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1587 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1588 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1589 // can be removed in a JDK using this JVM version |
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1590 if (JDK_Version::is_gte_jdk17x_version()) { |
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1591 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1592 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1593 } |
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1594 |
0 | 1595 } |
1596 | |
1597 | |
1598 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1599 if (throwable == NULL) { | |
1600 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1601 } | |
1602 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1603 int depth = 0; | |
1604 if (chunk != NULL) { | |
1605 // Iterate over chunks and count full ones | |
1606 while (true) { | |
1607 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1608 if (next == NULL) break; | |
1609 depth += trace_chunk_size; | |
1610 chunk = next; | |
1611 } | |
1612 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1613 // Count element in remaining partial chunk | |
1614 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1615 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1616 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1617 for (int i = 0; i < methods->length(); i++) { | |
1618 if (methods->obj_at(i) == NULL) break; | |
1619 depth++; | |
1620 } | |
1621 } | |
1622 return depth; | |
1623 } | |
1624 | |
1625 | |
1626 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1627 if (throwable == NULL) { | |
1628 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1629 } | |
1630 if (index < 0) { | |
1631 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1632 } | |
1633 // Compute how many chunks to skip and index into actual chunk | |
1634 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1635 int skip_chunks = index / trace_chunk_size; | |
1636 int chunk_index = index % trace_chunk_size; | |
1637 while (chunk != NULL && skip_chunks > 0) { | |
1638 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1639 skip_chunks--; | |
1640 } | |
1641 if (chunk == NULL) { | |
1642 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1643 } | |
1644 // Get method,bci from chunk | |
1645 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1646 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1647 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1648 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1649 int bci = bcis->ushort_at(chunk_index); | |
1650 // Chunk can be partial full | |
1651 if (method.is_null()) { | |
1652 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1653 } | |
1654 | |
1655 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1656 return element; | |
1657 } | |
1658 | |
1659 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1660 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1661 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1662 | |
1663 // Allocate java.lang.StackTraceElement instance | |
1142 | 1664 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1665 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1666 instanceKlassHandle ik (THREAD, k); |
1667 if (ik->should_be_initialized()) { | |
1668 ik->initialize(CHECK_0); | |
1669 } | |
1670 | |
1671 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1672 // Fill in class name | |
1673 ResourceMark rm(THREAD); | |
1674 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1675 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1676 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1677 // Fill in method name | |
1678 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1679 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1680 // Fill in source file name | |
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1681 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1682 oop filename = StringTable::intern(source, CHECK_0); |
1683 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1684 // File in source line number | |
1685 int line_number; | |
1686 if (method->is_native()) { | |
1687 // Negative value different from -1 below, enabling Java code in | |
1688 // class java.lang.StackTraceElement to distinguish "native" from | |
1689 // "no LineNumberTable". | |
1690 line_number = -2; | |
1691 } else { | |
1692 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1693 line_number = method->line_number_from_bci(bci); | |
1694 } | |
1695 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1696 | |
1697 return element(); | |
1698 } | |
1699 | |
1700 | |
1701 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1702 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1703 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1704 } |
1705 | |
1706 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1707 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1708 return (jboolean) reflect->bool_field(override_offset); | |
1709 } | |
1710 | |
1711 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1712 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1713 reflect->bool_field_put(override_offset, (int) value); | |
1714 } | |
1715 | |
1716 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1717 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1718 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1719 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1720 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1721 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1722 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1723 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1724 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1725 // The generic signature and annotations fields are only present in 1.5 |
1726 signature_offset = -1; | |
1727 annotations_offset = -1; | |
1728 parameter_annotations_offset = -1; | |
1729 annotation_default_offset = -1; | |
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1730 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1731 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1732 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1733 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1734 } |
1735 | |
1736 Handle java_lang_reflect_Method::create(TRAPS) { | |
1737 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1738 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1739 // This class is eagerly initialized during VM initialization, since we keep a refence |
1740 // to one of the methods | |
1741 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1742 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1743 } | |
1744 | |
1745 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1746 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1747 return reflect->obj_field(clazz_offset); | |
1748 } | |
1749 | |
1750 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1751 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1752 reflect->obj_field_put(clazz_offset, value); | |
1753 } | |
1754 | |
1755 int java_lang_reflect_Method::slot(oop reflect) { | |
1756 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1757 return reflect->int_field(slot_offset); | |
1758 } | |
1759 | |
1760 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1761 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1762 reflect->int_field_put(slot_offset, value); | |
1763 } | |
1764 | |
1765 oop java_lang_reflect_Method::name(oop method) { | |
1766 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1767 return method->obj_field(name_offset); | |
1768 } | |
1769 | |
1770 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1771 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1772 method->obj_field_put(name_offset, value); | |
1773 } | |
1774 | |
1775 oop java_lang_reflect_Method::return_type(oop method) { | |
1776 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1777 return method->obj_field(returnType_offset); | |
1778 } | |
1779 | |
1780 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1781 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1782 method->obj_field_put(returnType_offset, value); | |
1783 } | |
1784 | |
1785 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1786 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1787 return method->obj_field(parameterTypes_offset); | |
1788 } | |
1789 | |
1790 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1791 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1792 method->obj_field_put(parameterTypes_offset, value); | |
1793 } | |
1794 | |
1795 oop java_lang_reflect_Method::exception_types(oop method) { | |
1796 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1797 return method->obj_field(exceptionTypes_offset); | |
1798 } | |
1799 | |
1800 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1801 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1802 method->obj_field_put(exceptionTypes_offset, value); | |
1803 } | |
1804 | |
1805 int java_lang_reflect_Method::modifiers(oop method) { | |
1806 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1807 return method->int_field(modifiers_offset); | |
1808 } | |
1809 | |
1810 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1811 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1812 method->int_field_put(modifiers_offset, value); | |
1813 } | |
1814 | |
1815 bool java_lang_reflect_Method::has_signature_field() { | |
1816 return (signature_offset >= 0); | |
1817 } | |
1818 | |
1819 oop java_lang_reflect_Method::signature(oop method) { | |
1820 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1821 assert(has_signature_field(), "signature field must be present"); | |
1822 return method->obj_field(signature_offset); | |
1823 } | |
1824 | |
1825 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1826 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1827 assert(has_signature_field(), "signature field must be present"); | |
1828 method->obj_field_put(signature_offset, value); | |
1829 } | |
1830 | |
1831 bool java_lang_reflect_Method::has_annotations_field() { | |
1832 return (annotations_offset >= 0); | |
1833 } | |
1834 | |
1835 oop java_lang_reflect_Method::annotations(oop method) { | |
1836 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1837 assert(has_annotations_field(), "annotations field must be present"); | |
1838 return method->obj_field(annotations_offset); | |
1839 } | |
1840 | |
1841 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1842 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1843 assert(has_annotations_field(), "annotations field must be present"); | |
1844 method->obj_field_put(annotations_offset, value); | |
1845 } | |
1846 | |
1847 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1848 return (parameter_annotations_offset >= 0); | |
1849 } | |
1850 | |
1851 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1852 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1853 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1854 return method->obj_field(parameter_annotations_offset); | |
1855 } | |
1856 | |
1857 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1858 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1859 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1860 method->obj_field_put(parameter_annotations_offset, value); | |
1861 } | |
1862 | |
1863 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1864 return (annotation_default_offset >= 0); | |
1865 } | |
1866 | |
1867 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1868 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1869 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1870 return method->obj_field(annotation_default_offset); | |
1871 } | |
1872 | |
1873 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1874 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1875 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1876 method->obj_field_put(annotation_default_offset, value); | |
1877 } | |
1878 | |
1879 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1880 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1881 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1882 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1883 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1884 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1885 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1886 // The generic signature and annotations fields are only present in 1.5 |
1887 signature_offset = -1; | |
1888 annotations_offset = -1; | |
1889 parameter_annotations_offset = -1; | |
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1890 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1891 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1892 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1893 } |
1894 | |
1895 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1896 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1897 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1898 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1899 instanceKlassHandle klass (THREAD, k); | |
1900 // Ensure it is initialized | |
1901 klass->initialize(CHECK_NH); | |
1902 return klass->allocate_instance_handle(CHECK_NH); | |
1903 } | |
1904 | |
1905 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1906 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1907 return reflect->obj_field(clazz_offset); | |
1908 } | |
1909 | |
1910 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1911 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1912 reflect->obj_field_put(clazz_offset, value); | |
1913 } | |
1914 | |
1915 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1916 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1917 return constructor->obj_field(parameterTypes_offset); | |
1918 } | |
1919 | |
1920 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1921 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1922 constructor->obj_field_put(parameterTypes_offset, value); | |
1923 } | |
1924 | |
1925 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1926 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1927 return constructor->obj_field(exceptionTypes_offset); | |
1928 } | |
1929 | |
1930 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1931 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1932 constructor->obj_field_put(exceptionTypes_offset, value); | |
1933 } | |
1934 | |
1935 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1936 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1937 return reflect->int_field(slot_offset); | |
1938 } | |
1939 | |
1940 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1941 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1942 reflect->int_field_put(slot_offset, value); | |
1943 } | |
1944 | |
1945 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1946 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1947 return constructor->int_field(modifiers_offset); | |
1948 } | |
1949 | |
1950 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1951 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1952 constructor->int_field_put(modifiers_offset, value); | |
1953 } | |
1954 | |
1955 bool java_lang_reflect_Constructor::has_signature_field() { | |
1956 return (signature_offset >= 0); | |
1957 } | |
1958 | |
1959 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1960 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1961 assert(has_signature_field(), "signature field must be present"); | |
1962 return constructor->obj_field(signature_offset); | |
1963 } | |
1964 | |
1965 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1966 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1967 assert(has_signature_field(), "signature field must be present"); | |
1968 constructor->obj_field_put(signature_offset, value); | |
1969 } | |
1970 | |
1971 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1972 return (annotations_offset >= 0); | |
1973 } | |
1974 | |
1975 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1976 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1977 assert(has_annotations_field(), "annotations field must be present"); | |
1978 return constructor->obj_field(annotations_offset); | |
1979 } | |
1980 | |
1981 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1982 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1983 assert(has_annotations_field(), "annotations field must be present"); | |
1984 constructor->obj_field_put(annotations_offset, value); | |
1985 } | |
1986 | |
1987 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1988 return (parameter_annotations_offset >= 0); | |
1989 } | |
1990 | |
1991 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1992 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1993 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1994 return method->obj_field(parameter_annotations_offset); | |
1995 } | |
1996 | |
1997 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1998 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1999 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2000 method->obj_field_put(parameter_annotations_offset, value); | |
2001 } | |
2002 | |
2003 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 2004 klassOop k = SystemDictionary::reflect_Field_klass(); |
132
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2005 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2006 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2007 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2008 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2009 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2010 // The generic signature and annotations fields are only present in 1.5 |
2011 signature_offset = -1; | |
2012 annotations_offset = -1; | |
132
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2013 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2014 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2015 } |
2016 | |
2017 Handle java_lang_reflect_Field::create(TRAPS) { | |
2018 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2019 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 2020 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
2021 instanceKlassHandle klass (THREAD, k); | |
2022 // Ensure it is initialized | |
2023 klass->initialize(CHECK_NH); | |
2024 return klass->allocate_instance_handle(CHECK_NH); | |
2025 } | |
2026 | |
2027 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2028 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2029 return reflect->obj_field(clazz_offset); | |
2030 } | |
2031 | |
2032 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2033 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2034 reflect->obj_field_put(clazz_offset, value); | |
2035 } | |
2036 | |
2037 oop java_lang_reflect_Field::name(oop field) { | |
2038 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2039 return field->obj_field(name_offset); | |
2040 } | |
2041 | |
2042 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2043 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2044 field->obj_field_put(name_offset, value); | |
2045 } | |
2046 | |
2047 oop java_lang_reflect_Field::type(oop field) { | |
2048 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2049 return field->obj_field(type_offset); | |
2050 } | |
2051 | |
2052 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2053 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2054 field->obj_field_put(type_offset, value); | |
2055 } | |
2056 | |
2057 int java_lang_reflect_Field::slot(oop reflect) { | |
2058 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2059 return reflect->int_field(slot_offset); | |
2060 } | |
2061 | |
2062 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2063 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2064 reflect->int_field_put(slot_offset, value); | |
2065 } | |
2066 | |
2067 int java_lang_reflect_Field::modifiers(oop field) { | |
2068 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2069 return field->int_field(modifiers_offset); | |
2070 } | |
2071 | |
2072 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2073 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2074 field->int_field_put(modifiers_offset, value); | |
2075 } | |
2076 | |
2077 bool java_lang_reflect_Field::has_signature_field() { | |
2078 return (signature_offset >= 0); | |
2079 } | |
2080 | |
2081 oop java_lang_reflect_Field::signature(oop field) { | |
2082 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2083 assert(has_signature_field(), "signature field must be present"); | |
2084 return field->obj_field(signature_offset); | |
2085 } | |
2086 | |
2087 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2088 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2089 assert(has_signature_field(), "signature field must be present"); | |
2090 field->obj_field_put(signature_offset, value); | |
2091 } | |
2092 | |
2093 bool java_lang_reflect_Field::has_annotations_field() { | |
2094 return (annotations_offset >= 0); | |
2095 } | |
2096 | |
2097 oop java_lang_reflect_Field::annotations(oop field) { | |
2098 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2099 assert(has_annotations_field(), "annotations field must be present"); | |
2100 return field->obj_field(annotations_offset); | |
2101 } | |
2102 | |
2103 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2104 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2105 assert(has_annotations_field(), "annotations field must be present"); | |
2106 field->obj_field_put(annotations_offset, value); | |
2107 } | |
2108 | |
2109 | |
2110 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 2111 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2112 // This null test can be removed post beta |
2113 if (k != NULL) { | |
132
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2114 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 2115 } |
2116 } | |
2117 | |
2118 | |
2119 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2120 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 2121 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2122 instanceKlassHandle klass (THREAD, k); |
2123 // Ensure it is initialized | |
2124 klass->initialize(CHECK_NH); | |
2125 return klass->allocate_instance_handle(CHECK_NH); | |
2126 } | |
2127 | |
2128 | |
2129 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
2130 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2131 return reflect->obj_field(_cp_oop_offset); | |
2132 } | |
2133 | |
2134 | |
2135 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2136 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2137 reflect->obj_field_put(_cp_oop_offset, value); | |
2138 } | |
2139 | |
2140 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2141 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2142 // This null test can be removed post beta |
2143 if (k != NULL) { | |
132
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2144 compute_offset(_base_offset, k, |
0 | 2145 vmSymbols::base_name(), vmSymbols::object_signature()); |
2146 } | |
2147 } | |
2148 | |
132
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2149 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2150 klassOop k = SystemDictionary::box_klass(type); |
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2151 if (k == NULL) return NULL; |
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2152 instanceKlassHandle h (THREAD, k); |
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2153 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2154 return h->allocate_instance(THREAD); |
0 | 2155 } |
2156 | |
2157 | |
2158 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2159 oop box = initialize_and_allocate(type, CHECK_0); |
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2160 if (box == NULL) return NULL; |
0 | 2161 switch (type) { |
2162 case T_BOOLEAN: | |
2163 box->bool_field_put(value_offset, value->z); | |
2164 break; | |
2165 case T_CHAR: | |
2166 box->char_field_put(value_offset, value->c); | |
2167 break; | |
2168 case T_FLOAT: | |
2169 box->float_field_put(value_offset, value->f); | |
2170 break; | |
2171 case T_DOUBLE: | |
165
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2172 box->double_field_put(long_value_offset, value->d); |
0 | 2173 break; |
2174 case T_BYTE: | |
2175 box->byte_field_put(value_offset, value->b); | |
2176 break; | |
2177 case T_SHORT: | |
2178 box->short_field_put(value_offset, value->s); | |
2179 break; | |
2180 case T_INT: | |
2181 box->int_field_put(value_offset, value->i); | |
2182 break; | |
2183 case T_LONG: | |
165
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2184 box->long_field_put(long_value_offset, value->j); |
0 | 2185 break; |
2186 default: | |
2187 return NULL; | |
2188 } | |
2189 return box; | |
2190 } | |
2191 | |
2192 | |
132
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2193 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2194 if (box == NULL) return T_ILLEGAL; |
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2195 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2196 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2197 return T_ILLEGAL; |
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2198 return type; |
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2199 } |
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2200 |
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2201 |
0 | 2202 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2203 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2204 switch (type) { |
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2205 case T_BOOLEAN: |
0 | 2206 value->z = box->bool_field(value_offset); |
132
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2207 break; |
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2208 case T_CHAR: |
0 | 2209 value->c = box->char_field(value_offset); |
132
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2210 break; |
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2211 case T_FLOAT: |
0 | 2212 value->f = box->float_field(value_offset); |
132
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2213 break; |
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2214 case T_DOUBLE: |
165
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2215 value->d = box->double_field(long_value_offset); |
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2216 break; |
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2217 case T_BYTE: |
0 | 2218 value->b = box->byte_field(value_offset); |
132
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2219 break; |
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2220 case T_SHORT: |
0 | 2221 value->s = box->short_field(value_offset); |
132
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2222 break; |
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2223 case T_INT: |
0 | 2224 value->i = box->int_field(value_offset); |
132
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2225 break; |
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2226 case T_LONG: |
165
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2227 value->j = box->long_field(long_value_offset); |
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2228 break; |
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2229 default: |
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2230 return T_ILLEGAL; |
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2231 } // end switch |
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2232 return type; |
0 | 2233 } |
2234 | |
2235 | |
2236 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2237 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2238 switch (type) { |
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2239 case T_BOOLEAN: |
0 | 2240 box->bool_field_put(value_offset, value->z); |
132
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2241 break; |
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2242 case T_CHAR: |
0 | 2243 box->char_field_put(value_offset, value->c); |
132
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2244 break; |
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2245 case T_FLOAT: |
0 | 2246 box->float_field_put(value_offset, value->f); |
132
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2247 break; |
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2248 case T_DOUBLE: |
165
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2249 box->double_field_put(long_value_offset, value->d); |
132
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2250 break; |
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2251 case T_BYTE: |
0 | 2252 box->byte_field_put(value_offset, value->b); |
132
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2253 break; |
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2254 case T_SHORT: |
0 | 2255 box->short_field_put(value_offset, value->s); |
132
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2256 break; |
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2257 case T_INT: |
0 | 2258 box->int_field_put(value_offset, value->i); |
132
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2259 break; |
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2260 case T_LONG: |
165
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|
2261 box->long_field_put(long_value_offset, value->j); |
132
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|
2262 break; |
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|
2263 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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|
2264 return T_ILLEGAL; |
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|
2265 } // end switch |
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|
2266 return type; |
0 | 2267 } |
2268 | |
2269 | |
665
c89f86385056
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|
2270 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
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6814659: separable cleanups and subroutines for 6655638
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|
2271 switch (type) { |
c89f86385056
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diff
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|
2272 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
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|
2273 case T_CHAR: st->print("%d", value->c); break; |
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|
2274 case T_BYTE: st->print("%d", value->b); break; |
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|
2275 case T_SHORT: st->print("%d", value->s); break; |
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|
2276 case T_INT: st->print("%d", value->i); break; |
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|
2277 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
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|
2278 case T_FLOAT: st->print("%f", value->f); break; |
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|
2279 case T_DOUBLE: st->print("%lf", value->d); break; |
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|
2280 default: st->print("type %d?", type); break; |
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|
2281 } |
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|
2282 } |
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|
2283 |
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|
2284 |
0 | 2285 // Support for java_lang_ref_Reference |
113
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|
2286 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2287 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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2288 address addr = ik->static_field_addr(static_lock_offset); |
113
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|
2289 if (UseCompressedOops) { |
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|
2290 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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|
2291 } else { |
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|
2292 return oopDesc::load_decode_heap_oop((oop*)addr); |
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|
2293 } |
0 | 2294 } |
2295 | |
113
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|
2296 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2297 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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|
2298 address addr = ik->static_field_addr(static_pending_offset); |
113
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|
2299 // XXX This might not be HeapWord aligned, almost rather be char *. |
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|
2300 return (HeapWord*)addr; |
0 | 2301 } |
2302 | |
113
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|
2303 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
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|
2304 char *addr = (char *)pending_list_addr(); |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
2305 if (UseCompressedOops) { |
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|
2306 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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|
2307 } else { |
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|
2308 return oopDesc::load_decode_heap_oop((oop*)addr); |
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|
2309 } |
0 | 2310 } |
2311 | |
2312 | |
2313 // Support for java_lang_ref_SoftReference | |
2314 | |
2315 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2316 return ref->long_field(timestamp_offset); | |
2317 } | |
2318 | |
2319 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2320 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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2357
diff
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|
2321 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2357
diff
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|
2322 return *offset; |
0 | 2323 } |
2324 | |
2325 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2326 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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2357
diff
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|
2327 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
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2357
diff
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|
2328 *offset = value; |
0 | 2329 } |
2330 | |
2331 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2332 // Support for java_lang_invoke_MethodHandle |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2333 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
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|
2334 int java_lang_invoke_MethodHandle::_type_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2335 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2336 int java_lang_invoke_MethodHandle::_vmentry_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2337 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2338 int java_lang_invoke_MemberName::_clazz_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2339 int java_lang_invoke_MemberName::_name_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2340 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
|
2341 int java_lang_invoke_MemberName::_flags_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2342 int java_lang_invoke_MemberName::_vmtarget_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2343 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
|
2344 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2345 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2346 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2347 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2348 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2349 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2350 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2351 |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2352 int java_lang_invoke_CountingMethodHandle::_vmcount_offset; |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2353 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2354 void java_lang_invoke_MethodHandle::compute_offsets() { |
3938 | 2355 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
2356 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2357 bool allow_super = false; |
3938 | 2358 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
2359 METHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2360 } |
2361 } | |
2362 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2363 void java_lang_invoke_MemberName::compute_offsets() { |
3938 | 2364 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
2365 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2366 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2367 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2368 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2369 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2370 compute_offset(_vmindex_offset, klass_oop, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2371 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2372 } |
2373 } | |
2374 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2375 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2376 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2377 if (k != NULL && EnableInvokeDynamic) { |
3938 | 2378 DIRECTMETHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2379 } |
2380 } | |
2381 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2382 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2383 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2384 if (k != NULL && EnableInvokeDynamic) { |
710 | 2385 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
2386 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2387 } | |
2388 } | |
2389 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2390 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2391 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2392 if (k != NULL && EnableInvokeDynamic) { |
710 | 2393 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
2394 } | |
2395 } | |
2396 | |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
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|
2397 void java_lang_invoke_CountingMethodHandle::compute_offsets() { |
c26de9aef2ed
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parents:
3900
diff
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|
2398 klassOop k = SystemDictionary::CountingMethodHandle_klass(); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2399 if (k != NULL && EnableInvokeDynamic) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
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3900
diff
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|
2400 compute_offset(_vmcount_offset, k, vmSymbols::vmcount_name(), vmSymbols::int_signature(), true); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
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3900
diff
changeset
|
2401 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2402 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2403 |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2404 int java_lang_invoke_CountingMethodHandle::vmcount(oop mh) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2405 assert(is_instance(mh), "CMH only"); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2406 return mh->int_field(_vmcount_offset); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2407 } |
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7071307: MethodHandle bimorphic inlining should consider the frequency
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diff
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|
2408 |
c26de9aef2ed
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|
2409 void java_lang_invoke_CountingMethodHandle::set_vmcount(oop mh, int count) { |
c26de9aef2ed
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parents:
3900
diff
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|
2410 assert(is_instance(mh), "CMH only"); |
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3900
diff
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|
2411 mh->int_field_put(_vmcount_offset, count); |
c26de9aef2ed
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3900
diff
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|
2412 } |
c26de9aef2ed
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3900
diff
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|
2413 |
2357
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|
2414 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2415 return mh->obj_field(_type_offset); |
2416 } | |
2417 | |
2357
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|
2418 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2419 mh->obj_field_put(_type_offset, mtype); |
2420 } | |
2421 | |
2422 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2423 // required to carry the arguments of this MH | |
3938 | 2424 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2425 oop mtype = type(mh); |
2426 if (mtype == NULL) return 0; // Java code would get NPE | |
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|
2427 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2428 if (form == NULL) return 0; // Java code would get NPE |
2357
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diff
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|
2429 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2430 } |
2431 | |
2432 // fetch the low-level entry point for this mh | |
2357
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diff
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|
2433 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2434 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2435 } | |
2436 | |
2357
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diff
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|
2437 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2438 assert(_vmentry_offset != 0, "must be present"); |
2439 | |
2440 // This is always the final step that initializes a valid method handle: | |
2441 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2442 | |
2443 // There should be enough memory barriers on exit from native methods | |
2444 // to ensure that the MH is fully initialized to all threads before | |
2445 // Java code can publish it in global data structures. | |
2446 // But just in case, we use release_address_field_put. | |
2447 } | |
2448 | |
2449 /// MemberName accessors | |
2450 | |
2357
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changeset
|
2451 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2452 assert(is_instance(mname), "wrong type"); |
2453 return mname->obj_field(_clazz_offset); | |
2454 } | |
2455 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2456 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2457 assert(is_instance(mname), "wrong type"); |
2458 mname->obj_field_put(_clazz_offset, clazz); | |
2459 } | |
2460 | |
2357
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diff
changeset
|
2461 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2462 assert(is_instance(mname), "wrong type"); |
2463 return mname->obj_field(_name_offset); | |
2464 } | |
2465 | |
2357
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diff
changeset
|
2466 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2467 assert(is_instance(mname), "wrong type"); |
2468 mname->obj_field_put(_name_offset, name); | |
2469 } | |
2470 | |
2357
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diff
changeset
|
2471 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2472 assert(is_instance(mname), "wrong type"); |
2473 return mname->obj_field(_type_offset); | |
2474 } | |
2475 | |
2357
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diff
changeset
|
2476 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2477 assert(is_instance(mname), "wrong type"); |
2478 mname->obj_field_put(_type_offset, type); | |
2479 } | |
2480 | |
2357
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parents:
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diff
changeset
|
2481 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2482 assert(is_instance(mname), "wrong type"); |
2483 return mname->int_field(_flags_offset); | |
2484 } | |
2485 | |
2357
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2356
diff
changeset
|
2486 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2487 assert(is_instance(mname), "wrong type"); |
2488 mname->int_field_put(_flags_offset, flags); | |
2489 } | |
2490 | |
2357
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2356
diff
changeset
|
2491 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2492 assert(is_instance(mname), "wrong type"); |
2493 return mname->obj_field(_vmtarget_offset); | |
2494 } | |
2495 | |
2357
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diff
changeset
|
2496 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2497 assert(is_instance(mname), "wrong type"); |
2498 mname->obj_field_put(_vmtarget_offset, ref); | |
2499 } | |
2500 | |
2357
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diff
changeset
|
2501 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2502 assert(is_instance(mname), "wrong type"); |
2503 return mname->int_field(_vmindex_offset); | |
2504 } | |
2505 | |
2357
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diff
changeset
|
2506 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2507 assert(is_instance(mname), "wrong type"); |
2508 mname->int_field_put(_vmindex_offset, index); | |
2509 } | |
2510 | |
2357
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diff
changeset
|
2511 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2512 assert(is_instance(mh), "MH only"); |
2513 return mh->obj_field(_vmtarget_offset); | |
2514 } | |
2515 | |
2357
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diff
changeset
|
2516 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2517 assert(is_instance(mh), "MH only"); |
2518 mh->obj_field_put(_vmtarget_offset, ref); | |
2519 } | |
2520 | |
2357
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diff
changeset
|
2521 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2522 assert(is_instance(mh), "DMH only"); |
2523 return mh->int_field(_vmindex_offset); | |
2524 } | |
2525 | |
2357
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diff
changeset
|
2526 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2527 assert(is_instance(mh), "DMH only"); |
2528 mh->int_field_put(_vmindex_offset, index); | |
2529 } | |
2530 | |
2357
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diff
changeset
|
2531 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2532 assert(is_instance(mh), "BMH only"); |
2533 return mh->int_field(_vmargslot_offset); | |
2534 } | |
2535 | |
2357
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2356
diff
changeset
|
2536 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2537 assert(is_instance(mh), "BMH only"); |
2538 return mh->obj_field(_argument_offset); | |
2539 } | |
2540 | |
2357
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diff
changeset
|
2541 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2542 assert(is_instance(mh), "AMH only"); |
2543 return mh->int_field(_conversion_offset); | |
2544 } | |
2545 | |
2357
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diff
changeset
|
2546 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2547 assert(is_instance(mh), "AMH only"); |
2548 mh->int_field_put(_conversion_offset, conv); | |
2549 } | |
2550 | |
2551 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2552 // Support for java_lang_invoke_MethodType |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2553 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2554 int java_lang_invoke_MethodType::_rtype_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2555 int java_lang_invoke_MethodType::_ptypes_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2556 int java_lang_invoke_MethodType::_form_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2557 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2558 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2559 klassOop k = SystemDictionary::MethodType_klass(); |
2560 if (k != NULL) { | |
2561 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2562 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2357
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diff
changeset
|
2563 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2564 } |
2565 } | |
2566 | |
2357
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diff
changeset
|
2567 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2568 st->print("("); |
2569 objArrayOop pts = ptypes(mt); | |
2570 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2571 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2572 } | |
2573 st->print(")"); | |
2574 java_lang_Class::print_signature(rtype(mt), st); | |
2575 } | |
2576 | |
2357
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parents:
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diff
changeset
|
2577 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2578 ResourceMark rm; |
2579 stringStream buffer(128); | |
2580 print_signature(mt, &buffer); | |
2581 const char* sigstr = buffer.base(); | |
2582 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2583 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2584 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2585 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2586 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2587 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2588 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2589 return name; |
710 | 2590 } |
2591 | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2592 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2593 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
|
2594 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2595 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
|
2596 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2597 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
|
2598 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
|
2599 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2600 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2601 return true; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2602 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2603 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2604 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2605 assert(is_instance(mt), "must be a MethodType"); |
2606 return mt->obj_field(_rtype_offset); | |
2607 } | |
2608 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2609 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2610 assert(is_instance(mt), "must be a MethodType"); |
2611 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2612 } | |
2613 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2614 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2615 assert(is_instance(mt), "must be a MethodType"); |
2616 return mt->obj_field(_form_offset); | |
2617 } | |
2618 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2619 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2620 return ptypes(mt)->obj_at(idx); |
2621 } | |
2622 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2623 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
|
2624 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2625 } |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2626 |
710 | 2627 |
2628 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2629 // Support for java_lang_invoke_MethodTypeForm |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2630 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2631 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2632 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2633 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2634 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2635 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2636 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2637 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2638 if (k != NULL) { | |
2639 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2640 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2641 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2642 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2643 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
3938 | 2644 METHODTYPEFORM_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2645 } |
2646 } | |
2647 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2648 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2649 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2650 assert(_vmslots_offset > 0, ""); |
710 | 2651 return mtform->int_field(_vmslots_offset); |
2652 } | |
2653 | |
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2654 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2655 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2656 assert(_vmlayout_offset > 0, ""); |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2657 return mtform->obj_field(_vmlayout_offset); |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2658 } |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2659 |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2660 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2661 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2662 oop previous = vmlayout(mtform); |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2663 if (previous != NULL) { |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2664 return previous; // someone else beat us to it |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2665 } |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2666 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2667 OrderAccess::storestore(); // make sure our copy is fully committed |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2668 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2669 if (previous != NULL) { |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2670 return previous; // someone else beat us to it |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2671 } |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2672 return cookie; |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2673 } |
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2674 |
2357
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2675 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2676 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2677 return mtform->obj_field(_erasedType_offset); | |
2678 } | |
2679 | |
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2680 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
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2681 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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2682 return mtform->obj_field(_genericInvoker_offset); |
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2683 } |
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2684 |
710 | 2685 |
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2686 // Support for java_lang_invoke_CallSite |
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2687 |
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2688 int java_lang_invoke_CallSite::_target_offset; |
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2689 |
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2690 void java_lang_invoke_CallSite::compute_offsets() { |
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2691 if (!EnableInvokeDynamic) return; |
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2692 klassOop k = SystemDictionary::CallSite_klass(); |
726
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2693 if (k != NULL) { |
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2694 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
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2695 } |
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2696 |
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2697 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
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2698 // (For C2: keep this until we have throttling logic for uncommon traps.) |
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2699 if (k != NULL) { |
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2700 instanceKlass* ik = instanceKlass::cast(k); |
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2701 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
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2702 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
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2703 guarantee(m_normal != NULL && m_volatile != NULL, "must exist"); |
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2704 m_normal->set_not_compilable_quietly(); |
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2705 m_volatile->set_not_compilable_quietly(); |
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2706 } |
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2707 } |
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2708 |
710 | 2709 |
0 | 2710 // Support for java_security_AccessControlContext |
2711 | |
2712 int java_security_AccessControlContext::_context_offset = 0; | |
2713 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2714 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2715 | |
2716 void java_security_AccessControlContext::compute_offsets() { | |
2717 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2718 fieldDescriptor fd; | |
2719 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2720 | |
2721 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2722 fatal("Invalid layout of java.security.AccessControlContext"); | |
2723 } | |
2724 _context_offset = fd.offset(); | |
2725 | |
2726 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2727 fatal("Invalid layout of java.security.AccessControlContext"); | |
2728 } | |
2729 _privilegedContext_offset = fd.offset(); | |
2730 | |
2731 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2732 fatal("Invalid layout of java.security.AccessControlContext"); | |
2733 } | |
2734 _isPrivileged_offset = fd.offset(); | |
2735 } | |
2736 | |
2737 | |
2738 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2739 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2740 // Ensure klass is initialized | |
2741 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2742 // Allocate result | |
2743 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2744 // Fill in values | |
2745 result->obj_field_put(_context_offset, context()); | |
2746 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2747 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2748 return result; | |
2749 } | |
2750 | |
2751 | |
2752 // Support for java_lang_ClassLoader | |
3938 | 2753 bool java_lang_ClassLoader::offsets_computed = false; |
2754 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
2755 | |
2756 void java_lang_ClassLoader::compute_offsets() { | |
2757 assert(!offsets_computed, "offsets should be initialized only once"); | |
2758 offsets_computed = true; | |
2759 | |
2760 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
2761 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
2762 compute_optional_offset(parallelCapable_offset, | |
2763 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
2764 } | |
0 | 2765 |
2766 oop java_lang_ClassLoader::parent(oop loader) { | |
2767 assert(loader->is_oop(), "loader must be oop"); | |
2768 return loader->obj_field(parent_offset); | |
2769 } | |
2770 | |
2771 | |
3938 | 2772 // For class loader classes, parallelCapable defined |
2773 // based on non-null field | |
2774 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
2775 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
2776 if (!JDK_Version::is_gte_jdk17x_version() | |
2777 || parallelCapable_offset == -1) { | |
2778 // Default for backward compatibility is false | |
2779 return false; | |
2780 } | |
2781 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
2782 } | |
2783 | |
0 | 2784 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
2785 // Fix for 4474172; see evaluation for more details | |
2786 loader = non_reflection_class_loader(loader); | |
2787 | |
2788 oop cl = SystemDictionary::java_system_loader(); | |
2789 while(cl != NULL) { | |
2790 if (cl == loader) return true; | |
2791 cl = parent(cl); | |
2792 } | |
2793 return false; | |
2794 } | |
2795 | |
2796 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2797 if (loader != NULL) { | |
2798 // See whether this is one of the class loaders associated with | |
2799 // the generated bytecodes for reflection, and if so, "magically" | |
2800 // delegate to its parent to prevent class loading from occurring | |
2801 // in places where applications using reflection didn't expect it. | |
1142 | 2802 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2803 // This might be null in non-1.4 JDKs |
2804 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2805 return parent(loader); | |
2806 } | |
2807 } | |
2808 return loader; | |
2809 } | |
2810 | |
2811 | |
2812 // Support for java_lang_System | |
2813 int java_lang_System::in_offset_in_bytes() { | |
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2814 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2815 } |
2816 | |
2817 | |
2818 int java_lang_System::out_offset_in_bytes() { | |
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2819 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2820 } |
2821 | |
2822 | |
2823 int java_lang_System::err_offset_in_bytes() { | |
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2824 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2825 } |
2826 | |
2827 | |
2828 | |
2829 int java_lang_String::value_offset; | |
2830 int java_lang_String::offset_offset; | |
2831 int java_lang_String::count_offset; | |
2832 int java_lang_String::hash_offset; | |
3938 | 2833 int java_lang_Class::_klass_offset; |
2834 int java_lang_Class::_array_klass_offset; | |
2835 int java_lang_Class::_resolved_constructor_offset; | |
2836 int java_lang_Class::_oop_size_offset; | |
2837 int java_lang_Class::_static_oop_field_count_offset; | |
0 | 2838 int java_lang_Throwable::backtrace_offset; |
2839 int java_lang_Throwable::detailMessage_offset; | |
2840 int java_lang_Throwable::cause_offset; | |
2841 int java_lang_Throwable::stackTrace_offset; | |
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2842 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 2843 int java_lang_reflect_AccessibleObject::override_offset; |
2844 int java_lang_reflect_Method::clazz_offset; | |
2845 int java_lang_reflect_Method::name_offset; | |
2846 int java_lang_reflect_Method::returnType_offset; | |
2847 int java_lang_reflect_Method::parameterTypes_offset; | |
2848 int java_lang_reflect_Method::exceptionTypes_offset; | |
2849 int java_lang_reflect_Method::slot_offset; | |
2850 int java_lang_reflect_Method::modifiers_offset; | |
2851 int java_lang_reflect_Method::signature_offset; | |
2852 int java_lang_reflect_Method::annotations_offset; | |
2853 int java_lang_reflect_Method::parameter_annotations_offset; | |
2854 int java_lang_reflect_Method::annotation_default_offset; | |
2855 int java_lang_reflect_Constructor::clazz_offset; | |
2856 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2857 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2858 int java_lang_reflect_Constructor::slot_offset; | |
2859 int java_lang_reflect_Constructor::modifiers_offset; | |
2860 int java_lang_reflect_Constructor::signature_offset; | |
2861 int java_lang_reflect_Constructor::annotations_offset; | |
2862 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2863 int java_lang_reflect_Field::clazz_offset; | |
2864 int java_lang_reflect_Field::name_offset; | |
2865 int java_lang_reflect_Field::type_offset; | |
2866 int java_lang_reflect_Field::slot_offset; | |
2867 int java_lang_reflect_Field::modifiers_offset; | |
2868 int java_lang_reflect_Field::signature_offset; | |
2869 int java_lang_reflect_Field::annotations_offset; | |
2870 int java_lang_boxing_object::value_offset; | |
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2871 int java_lang_boxing_object::long_value_offset; |
0 | 2872 int java_lang_ref_Reference::referent_offset; |
2873 int java_lang_ref_Reference::queue_offset; | |
2874 int java_lang_ref_Reference::next_offset; | |
2875 int java_lang_ref_Reference::discovered_offset; | |
2876 int java_lang_ref_Reference::static_lock_offset; | |
2877 int java_lang_ref_Reference::static_pending_offset; | |
2878 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2879 int java_lang_ref_SoftReference::timestamp_offset; | |
2880 int java_lang_ref_SoftReference::static_clock_offset; | |
2881 int java_lang_ClassLoader::parent_offset; | |
2882 int java_lang_System::static_in_offset; | |
2883 int java_lang_System::static_out_offset; | |
2884 int java_lang_System::static_err_offset; | |
2885 int java_lang_StackTraceElement::declaringClass_offset; | |
2886 int java_lang_StackTraceElement::methodName_offset; | |
2887 int java_lang_StackTraceElement::fileName_offset; | |
2888 int java_lang_StackTraceElement::lineNumber_offset; | |
2889 int java_lang_AssertionStatusDirectives::classes_offset; | |
2890 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2891 int java_lang_AssertionStatusDirectives::packages_offset; | |
2892 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2893 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2894 int java_nio_Buffer::_limit_offset; | |
2895 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2896 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2897 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2898 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2899 | |
2900 | |
2901 // Support for java_lang_StackTraceElement | |
2902 | |
2903 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2904 element->obj_field_put(fileName_offset, value); | |
2905 } | |
2906 | |
2907 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2908 element->obj_field_put(declaringClass_offset, value); | |
2909 } | |
2910 | |
2911 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2912 element->obj_field_put(methodName_offset, value); | |
2913 } | |
2914 | |
2915 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2916 element->int_field_put(lineNumber_offset, value); | |
2917 } | |
2918 | |
2919 | |
2920 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2921 | |
2922 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2923 o->obj_field_put(classes_offset, val); | |
2924 } | |
2925 | |
2926 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2927 o->obj_field_put(classEnabled_offset, val); | |
2928 } | |
2929 | |
2930 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2931 o->obj_field_put(packages_offset, val); | |
2932 } | |
2933 | |
2934 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2935 o->obj_field_put(packageEnabled_offset, val); | |
2936 } | |
2937 | |
2938 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2939 o->bool_field_put(deflt_offset, val); | |
2940 } | |
2941 | |
2942 | |
2943 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2944 int java_nio_Buffer::limit_offset() { | |
2945 return _limit_offset; | |
2946 } | |
2947 | |
2948 | |
2949 void java_nio_Buffer::compute_offsets() { | |
3938 | 2950 klassOop k = SystemDictionary::nio_Buffer_klass(); |
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2951 assert(k != NULL, "must be loaded in 1.4+"); |
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2952 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2953 } |
2954 | |
2955 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2956 int sun_misc_AtomicLongCSImpl::value_offset() { | |
3938 | 2957 assert(SystemDictionary::AtomicLongCSImpl_klass() != NULL, "can't call this"); |
0 | 2958 return _value_offset; |
2959 } | |
2960 | |
2961 | |
2962 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
3938 | 2963 klassOop k = SystemDictionary::AtomicLongCSImpl_klass(); |
0 | 2964 // If this class is not present, its value field offset won't be referenced. |
2965 if (k != NULL) { | |
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2966 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2967 } |
2968 } | |
2969 | |
2970 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2971 if (_owner_offset != 0) return; | |
2972 | |
2973 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2974 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2975 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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2976 compute_offset(_owner_offset, k, |
0 | 2977 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2978 } | |
2979 | |
2980 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2981 assert(_owner_offset != 0, "Must be initialized"); | |
2982 return obj->obj_field(_owner_offset); | |
2983 } | |
2984 | |
2985 // Compute hard-coded offsets | |
2986 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2987 // are not available to determine the offset_of_static_fields. | |
2988 void JavaClasses::compute_hard_coded_offsets() { | |
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2989 const int x = heapOopSize; |
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2990 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2991 |
2992 // Do the String Class | |
2993 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2994 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2995 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2996 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2997 | |
2998 // Throwable Class | |
2999 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3000 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3001 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3002 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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3003 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3004 |
3005 // java_lang_boxing_object | |
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3006 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3007 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3008 |
3009 // java_lang_ref_Reference: | |
3010 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3011 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3012 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3013 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3014 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3015 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3016 // Artificial fields for java_lang_ref_Reference | |
3017 // The first field is for the discovered field added in 1.4 | |
3018 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3019 | |
3020 // java_lang_ref_SoftReference Class | |
165
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3021 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3022 // Don't multiply static fields because they are always in wordSize units |
3023 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3024 | |
3025 // java_lang_ClassLoader | |
3026 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3027 | |
3028 // java_lang_System | |
3029 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3030 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3031 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
3032 | |
3033 // java_lang_StackTraceElement | |
3034 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3035 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3036 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3037 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3038 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3039 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3040 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3041 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3042 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3043 | |
3044 } | |
3045 | |
3046 | |
3047 // Compute non-hard-coded field offsets of all the classes in this file | |
3048 void JavaClasses::compute_offsets() { | |
3938 | 3049 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3050 java_lang_ClassLoader::compute_offsets(); | |
0 | 3051 java_lang_Thread::compute_offsets(); |
3052 java_lang_ThreadGroup::compute_offsets(); | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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2379
diff
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|
3053 if (EnableInvokeDynamic) { |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
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|
3054 java_lang_invoke_MethodHandle::compute_offsets(); |
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|
3055 java_lang_invoke_MemberName::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
3056 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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diff
changeset
|
3057 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
8033953d67ff
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|
3058 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
8033953d67ff
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diff
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|
3059 java_lang_invoke_MethodType::compute_offsets(); |
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|
3060 java_lang_invoke_MethodTypeForm::compute_offsets(); |
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jrose
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|
3061 java_lang_invoke_CallSite::compute_offsets(); |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
3062 java_lang_invoke_CountingMethodHandle::compute_offsets(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
3063 } |
0 | 3064 java_security_AccessControlContext::compute_offsets(); |
3065 // Initialize reflection classes. The layouts of these classes | |
3066 // changed with the new reflection implementation in JDK 1.4, and | |
3067 // since the Universe doesn't know what JDK version it is until this | |
3068 // point we defer computation of these offsets until now. | |
3069 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3070 java_lang_reflect_Method::compute_offsets(); | |
3071 java_lang_reflect_Constructor::compute_offsets(); | |
3072 java_lang_reflect_Field::compute_offsets(); | |
3073 if (JDK_Version::is_gte_jdk14x_version()) { | |
3074 java_nio_Buffer::compute_offsets(); | |
3075 } | |
3076 if (JDK_Version::is_gte_jdk15x_version()) { | |
3077 sun_reflect_ConstantPool::compute_offsets(); | |
3078 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3079 } | |
3080 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 3081 |
3082 // generated interpreter code wants to know about the offsets we just computed: | |
3083 AbstractAssembler::update_delayed_values(); | |
0 | 3084 } |
3085 | |
3086 #ifndef PRODUCT | |
3087 | |
3088 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3089 // against changes in the class files | |
3090 | |
3091 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3092 EXCEPTION_MARK; | |
3093 fieldDescriptor fd; | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3094 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3095 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3096 instanceKlassHandle h_klass (THREAD, k); | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3097 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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diff
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|
3098 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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coleenp
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1989
diff
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|
3099 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3100 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3101 return false; | |
3102 } | |
3103 if (fd.is_static()) { | |
3104 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3105 return false; | |
3106 } | |
3107 if (fd.offset() == hardcoded_offset ) { | |
3108 return true; | |
3109 } else { | |
3110 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3111 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3112 return false; | |
3113 } | |
3114 } | |
3115 | |
3116 | |
3117 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3118 EXCEPTION_MARK; | |
3119 fieldDescriptor fd; | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3120 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3121 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3122 instanceKlassHandle h_klass (THREAD, k); | |
2177
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diff
changeset
|
3123 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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diff
changeset
|
3124 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
3125 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3126 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3127 return false; | |
3128 } | |
3129 if (!fd.is_static()) { | |
3130 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3131 return false; | |
3132 } | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3133 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
0 | 3134 return true; |
3135 } else { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
3136 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 | 3137 return false; |
3138 } | |
3139 } | |
3140 | |
3141 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
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|
3142 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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|
3143 EXCEPTION_MARK; |
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|
3144 fieldDescriptor fd; |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
3145 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
132
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|
3146 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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|
3147 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3148 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
|
3149 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3150 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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|
3151 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
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|
3152 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3153 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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diff
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|
3154 if (!fd.is_static() || !fd.has_initial_value()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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113
diff
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|
3155 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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|
3156 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3157 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3158 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3159 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
|
3160 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3161 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
changeset
|
3162 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3163 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3164 return true; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3165 } else { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3166 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
|
3167 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3168 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3169 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
changeset
|
3170 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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|
3171 |
0 | 3172 // Check the hard-coded field offsets of all the classes in this file |
3173 | |
3174 void JavaClasses::check_offsets() { | |
3175 bool valid = true; | |
3176 | |
3177 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3178 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3179 | |
165
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diff
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|
3180 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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diff
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|
3181 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
437d03ea40b1
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|
3182 |
0 | 3183 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3184 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3185 | |
132
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|
3186 #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
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|
3187 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
60b728ec77c1
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|
3188 |
0 | 3189 // java.lang.String |
3190 | |
3191 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3192 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3193 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3194 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3195 | |
3196 // java.lang.Class | |
3197 | |
3198 // Fake fields | |
3199 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3200 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3201 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3202 | |
3203 // java.lang.Throwable | |
3204 | |
3205 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3206 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3207 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3208 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3209 | |
3210 // Boxed primitive objects (java_lang_boxing_object) | |
3211 | |
3212 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3213 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3214 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
165
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|
3215 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3216 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3217 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3218 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
165
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|
3219 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3220 |
3221 // java.lang.ClassLoader | |
3222 | |
3223 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3224 | |
3225 // java.lang.System | |
3226 | |
3227 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3228 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3229 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3230 | |
3231 // java.lang.StackTraceElement | |
3232 | |
3233 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3234 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3235 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3236 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3237 | |
3238 // java.lang.ref.Reference | |
3239 | |
3240 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3241 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3242 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3243 // Fake field | |
3244 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3245 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3246 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3247 | |
3248 // java.lang.ref.SoftReference | |
3249 | |
3250 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3251 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3252 | |
3253 // java.lang.AssertionStatusDirectives | |
3254 // | |
3255 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3256 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3257 // into merlin "for some time." Without it, the vm will fail with early | |
3258 // merlin builds. | |
3259 | |
3260 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3261 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3262 const char* sig = "[Ljava/lang/String;"; | |
3263 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3264 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3265 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3266 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3267 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3268 } | |
3269 | |
3270 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3271 } | |
3272 | |
3273 #endif // PRODUCT | |
3274 | |
3938 | 3275 int InjectedField::compute_offset() { |
3276 klassOop klass_oop = klass(); | |
3277 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
3278 if (!may_be_java && !fs.access_flags().is_internal()) { | |
3279 // Only look at injected fields | |
3280 continue; | |
3281 } | |
3282 if (fs.name() == name() && fs.signature() == signature()) { | |
3283 return fs.offset(); | |
3284 } | |
3285 } | |
3286 ResourceMark rm; | |
3287 tty->print_cr("Invalid layout of %s at %s", instanceKlass::cast(klass_oop)->external_name(), name()->as_C_string()); | |
3288 fatal("Invalid layout of preloaded class"); | |
3289 return -1; | |
3290 } | |
3291 | |
0 | 3292 void javaClasses_init() { |
3293 JavaClasses::compute_offsets(); | |
3294 JavaClasses::check_offsets(); | |
3295 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3296 } |