Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 3948:8ab2f4108d20
7091294: disable quicksort tests
Reviewed-by: jmasa, ysr, kvn
author | jcoomes |
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date | Thu, 15 Sep 2011 20:30:12 -0700 |
parents | 8ed53447f690 |
children | f08d439fab8c |
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 | |
0 | 61 |
3938 | 62 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
63 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
64 | |
65 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
66 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
67 | |
68 InjectedField JavaClasses::_injected_fields[] = { | |
69 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
70 }; | |
71 | |
72 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
73 return _injected_fields[id].compute_offset(); | |
74 } | |
75 | |
76 | |
77 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
78 *field_count = 0; | |
79 | |
80 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
81 if (sid == vmSymbols::NO_SID) { | |
82 // Only well known classes can inject fields | |
83 return NULL; | |
84 } | |
85 | |
86 int count = 0; | |
87 int start = -1; | |
88 | |
89 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
90 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
91 count++; \ | |
92 if (start == -1) start = klass##_##name##_enum; \ | |
93 } | |
94 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
95 #undef LOOKUP_INJECTED_FIELD | |
96 | |
97 if (start != -1) { | |
98 *field_count = count; | |
99 return _injected_fields + start; | |
100 } | |
101 return NULL; | |
102 } | |
103 | |
104 | |
710 | 105 static bool find_field(instanceKlass* ik, |
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106 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 107 fieldDescriptor* fd, |
108 bool allow_super = false) { | |
109 if (allow_super) | |
110 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
111 else | |
112 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
113 } | |
114 | |
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115 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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116 static void |
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117 compute_offset(int &dest_offset, |
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118 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 119 bool allow_super = false) { |
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120 fieldDescriptor fd; |
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121 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 122 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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123 ResourceMark rm; |
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124 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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125 fatal("Invalid layout of preloaded class"); |
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126 } |
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127 dest_offset = fd.offset(); |
0 | 128 } |
129 | |
130 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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131 static void |
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132 compute_optional_offset(int& dest_offset, |
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133 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 134 bool allow_super = false) { |
132
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135 fieldDescriptor fd; |
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136 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 137 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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138 dest_offset = fd.offset(); |
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139 } |
0 | 140 } |
141 | |
710 | 142 |
0 | 143 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
144 // Create the String object first, so there's a chance that the String | |
145 // and the char array it points to end up in the same cache line. | |
146 oop obj; | |
147 if (tenured) { | |
1142 | 148 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 149 } else { |
1142 | 150 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 151 } |
152 | |
153 // Create the char array. The String object must be handlized here | |
154 // because GC can happen as a result of the allocation attempt. | |
155 Handle h_obj(THREAD, obj); | |
156 typeArrayOop buffer; | |
157 if (tenured) { | |
158 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
159 } else { | |
160 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
161 } | |
162 | |
163 // Point the String at the char array | |
164 obj = h_obj(); | |
165 set_value(obj, buffer); | |
166 // No need to zero the offset, allocation zero'ed the entire String object | |
167 assert(offset(obj) == 0, "initial String offset should be zero"); | |
168 //set_offset(obj, 0); | |
169 set_count(obj, length); | |
170 | |
171 return h_obj; | |
172 } | |
173 | |
174 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
175 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
176 typeArrayOop buffer = value(h_obj()); | |
177 for (int index = 0; index < length; index++) { | |
178 buffer->char_at_put(index, unicode[index]); | |
179 } | |
180 return h_obj; | |
181 } | |
182 | |
183 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
184 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
185 } | |
186 | |
187 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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188 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
0 | 189 } |
190 | |
191 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
192 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
193 return h_obj(); | |
194 } | |
195 | |
196 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
197 if (utf8_str == NULL) { | |
198 return Handle(); | |
199 } | |
200 int length = UTF8::unicode_length(utf8_str); | |
201 Handle h_obj = basic_create(length, false, CHECK_NH); | |
202 if (length > 0) { | |
203 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
204 } | |
205 return h_obj; | |
206 } | |
207 | |
208 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
209 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
210 return h_obj(); | |
211 } | |
212 | |
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213 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 214 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
215 Handle h_obj = basic_create(length, false, CHECK_NH); | |
216 if (length > 0) { | |
217 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
218 } | |
219 return h_obj; | |
220 } | |
221 | |
222 // Converts a C string to a Java String based on current encoding | |
223 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
224 assert(str != NULL, "bad arguments"); | |
225 | |
226 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
227 static to_java_string_fn_t _to_java_string_fn = NULL; | |
228 | |
229 if (_to_java_string_fn == NULL) { | |
230 void *lib_handle = os::native_java_library(); | |
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231 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 232 if (_to_java_string_fn == NULL) { |
233 fatal("NewStringPlatform missing"); | |
234 } | |
235 } | |
236 | |
237 jstring js = NULL; | |
238 { JavaThread* thread = (JavaThread*)THREAD; | |
239 assert(thread->is_Java_thread(), "must be java thread"); | |
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240 HandleMark hm(thread); |
0 | 241 ThreadToNativeFromVM ttn(thread); |
242 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
243 } | |
244 return Handle(THREAD, JNIHandles::resolve(js)); | |
245 } | |
246 | |
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247 // Converts a Java String to a native C string that can be used for |
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248 // native OS calls. |
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249 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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250 |
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251 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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252 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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253 |
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254 if (_to_platform_string_fn == NULL) { |
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255 void *lib_handle = os::native_java_library(); |
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256 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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257 if (_to_platform_string_fn == NULL) { |
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258 fatal("GetStringPlatformChars missing"); |
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259 } |
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260 } |
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261 |
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262 char *native_platform_string; |
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263 { JavaThread* thread = (JavaThread*)THREAD; |
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264 assert(thread->is_Java_thread(), "must be java thread"); |
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265 JNIEnv *env = thread->jni_environment(); |
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266 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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267 bool is_copy; |
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268 HandleMark hm(thread); |
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269 ThreadToNativeFromVM ttn(thread); |
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270 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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271 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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272 JNIHandles::destroy_local(js); |
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273 } |
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274 return native_platform_string; |
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275 } |
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276 |
0 | 277 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
278 oop obj = java_string(); | |
279 // Typical usage is to convert all '/' to '.' in string. | |
280 typeArrayOop value = java_lang_String::value(obj); | |
281 int offset = java_lang_String::offset(obj); | |
282 int length = java_lang_String::length(obj); | |
283 | |
284 // First check if any from_char exist | |
285 int index; // Declared outside, used later | |
286 for (index = 0; index < length; index++) { | |
287 if (value->char_at(index + offset) == from_char) { | |
288 break; | |
289 } | |
290 } | |
291 if (index == length) { | |
292 // No from_char, so do not copy. | |
293 return java_string; | |
294 } | |
295 | |
296 // Create new UNICODE buffer. Must handlize value because GC | |
297 // may happen during String and char array creation. | |
298 typeArrayHandle h_value(THREAD, value); | |
299 Handle string = basic_create(length, false, CHECK_NH); | |
300 | |
301 typeArrayOop from_buffer = h_value(); | |
302 typeArrayOop to_buffer = java_lang_String::value(string()); | |
303 | |
304 // Copy contents | |
305 for (index = 0; index < length; index++) { | |
306 jchar c = from_buffer->char_at(index + offset); | |
307 if (c == from_char) { | |
308 c = to_char; | |
309 } | |
310 to_buffer->char_at_put(index, c); | |
311 } | |
312 return string; | |
313 } | |
314 | |
315 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
316 typeArrayOop value = java_lang_String::value(java_string); | |
317 int offset = java_lang_String::offset(java_string); | |
318 length = java_lang_String::length(java_string); | |
319 | |
320 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
321 for (int index = 0; index < length; index++) { | |
322 result[index] = value->char_at(index + offset); | |
323 } | |
324 return result; | |
325 } | |
326 | |
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327 unsigned int java_lang_String::hash_string(oop java_string) { |
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328 typeArrayOop value = java_lang_String::value(java_string); |
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329 int offset = java_lang_String::offset(java_string); |
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330 int length = java_lang_String::length(java_string); |
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331 |
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332 if (length == 0) return 0; |
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333 return hash_string(value->char_at_addr(offset), length); |
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334 } |
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335 |
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336 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 337 oop obj = java_string(); |
338 typeArrayOop value = java_lang_String::value(obj); | |
339 int offset = java_lang_String::offset(obj); | |
340 int length = java_lang_String::length(obj); | |
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341 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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342 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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343 return sym; |
0 | 344 } |
345 | |
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346 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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347 typeArrayOop value = java_lang_String::value(java_string); |
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348 int offset = java_lang_String::offset(java_string); |
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349 int length = java_lang_String::length(java_string); |
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350 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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351 return SymbolTable::probe_unicode(base, length); |
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352 } |
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353 |
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354 |
0 | 355 int java_lang_String::utf8_length(oop java_string) { |
356 typeArrayOop value = java_lang_String::value(java_string); | |
357 int offset = java_lang_String::offset(java_string); | |
358 int length = java_lang_String::length(java_string); | |
359 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
360 return UNICODE::utf8_length(position, length); | |
361 } | |
362 | |
363 char* java_lang_String::as_utf8_string(oop java_string) { | |
364 typeArrayOop value = java_lang_String::value(java_string); | |
365 int offset = java_lang_String::offset(java_string); | |
366 int length = java_lang_String::length(java_string); | |
367 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
368 return UNICODE::as_utf8(position, length); | |
369 } | |
370 | |
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371 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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372 typeArrayOop value = java_lang_String::value(java_string); |
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373 int offset = java_lang_String::offset(java_string); |
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374 int length = java_lang_String::length(java_string); |
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375 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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376 return UNICODE::as_utf8(position, length, buf, buflen); |
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377 } |
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378 |
0 | 379 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
380 typeArrayOop value = java_lang_String::value(java_string); | |
381 int offset = java_lang_String::offset(java_string); | |
382 int length = java_lang_String::length(java_string); | |
383 assert(start + len <= length, "just checking"); | |
384 jchar* position = value->char_at_addr(offset + start); | |
385 return UNICODE::as_utf8(position, len); | |
386 } | |
387 | |
388 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
389 assert(SharedSkipVerify || | |
1142 | 390 java_string->klass() == SystemDictionary::String_klass(), |
0 | 391 "must be java_string"); |
392 typeArrayOop value = java_lang_String::value(java_string); | |
393 int offset = java_lang_String::offset(java_string); | |
394 int length = java_lang_String::length(java_string); | |
395 if (length != len) { | |
396 return false; | |
397 } | |
398 for (int i = 0; i < len; i++) { | |
399 if (value->char_at(i + offset) != chars[i]) { | |
400 return false; | |
401 } | |
402 } | |
403 return true; | |
404 } | |
405 | |
406 void java_lang_String::print(Handle java_string, outputStream* st) { | |
407 oop obj = java_string(); | |
1142 | 408 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 409 typeArrayOop value = java_lang_String::value(obj); |
410 int offset = java_lang_String::offset(obj); | |
411 int length = java_lang_String::length(obj); | |
412 | |
413 int end = MIN2(length, 100); | |
414 if (value == NULL) { | |
415 // This can happen if, e.g., printing a String | |
416 // object before its initializer has been called | |
417 st->print_cr("NULL"); | |
418 } else { | |
419 st->print("\""); | |
420 for (int index = 0; index < length; index++) { | |
421 st->print("%c", value->char_at(index + offset)); | |
422 } | |
423 st->print("\""); | |
424 } | |
425 } | |
426 | |
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427 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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428 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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429 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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430 if (fd->has_initial_value()) { |
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431 BasicType t = fd->field_type(); |
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432 switch (t) { |
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433 case T_BYTE: |
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434 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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435 break; |
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436 case T_BOOLEAN: |
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437 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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438 break; |
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439 case T_CHAR: |
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440 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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441 break; |
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442 case T_SHORT: |
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443 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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444 break; |
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445 case T_INT: |
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446 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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447 break; |
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448 case T_FLOAT: |
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449 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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450 break; |
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451 case T_DOUBLE: |
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452 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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453 break; |
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454 case T_LONG: |
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455 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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456 break; |
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457 case T_OBJECT: |
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458 { |
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459 #ifdef ASSERT |
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460 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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461 assert(fd->signature() == sym, "just checking"); |
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462 #endif |
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463 oop string = fd->string_initial_value(CHECK); |
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464 mirror()->obj_field_put(fd->offset(), string); |
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465 } |
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466 break; |
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467 default: |
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468 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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469 "Illegal ConstantValue attribute in class file"); |
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470 } |
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471 } |
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472 } |
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473 |
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474 |
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475 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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476 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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477 |
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478 if (k->oop_is_instance()) { |
3938 | 479 // During bootstrap, java.lang.Class wasn't loaded so static field |
480 // offsets were computed without the size added it. Go back and | |
481 // update all the static field offsets to included the size. | |
482 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
483 if (fs.access_flags().is_static()) { | |
484 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
485 fs.set_offset(real_offset); | |
486 } | |
487 } | |
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488 } |
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489 create_mirror(k, CHECK); |
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490 } |
0 | 491 |
492 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
493 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
494 // Use this moment of initialization to cache modifier_flags also, | |
495 // to support Class.getModifiers(). Instance classes recalculate | |
496 // the cached flags after the class file is parsed, but before the | |
497 // class is put into the system dictionary. | |
498 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
499 k->set_modifier_flags(computed_modifiers); | |
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500 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
0 | 501 // Allocate mirror (java.lang.Class instance) |
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502 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
0 | 503 // Setup indirections |
3938 | 504 mirror->obj_field_put(_klass_offset, k()); |
0 | 505 k->set_java_mirror(mirror()); |
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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_oop_size(mirror(), mk->instance_size(k)); |
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509 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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510 |
0 | 511 // It might also have a component mirror. This mirror must already exist. |
512 if (k->oop_is_javaArray()) { | |
513 Handle comp_mirror; | |
514 if (k->oop_is_typeArray()) { | |
515 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
516 comp_mirror = Universe::java_mirror(type); | |
517 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
518 } else if (k->oop_is_objArray()) { | |
519 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
520 if (element_klass != NULL | |
521 && (Klass::cast(element_klass)->oop_is_instance() || | |
522 Klass::cast(element_klass)->oop_is_javaArray())) { | |
523 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
524 assert(comp_mirror.not_null(), "must have element mirror"); | |
525 } | |
526 // else some object array internal to the VM, like systemObjArrayKlassObj | |
527 } | |
528 if (comp_mirror.not_null()) { | |
529 // Two-way link between the array klass and its component mirror: | |
530 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
531 set_array_klass(comp_mirror(), k->as_klassOop()); | |
532 } | |
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533 } else if (k->oop_is_instance()) { |
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534 // Initialize static fields |
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535 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 536 } |
537 return mirror(); | |
538 } else { | |
539 return NULL; | |
540 } | |
541 } | |
542 | |
543 | |
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544 |
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545 int java_lang_Class::oop_size(oop java_class) { |
3938 | 546 assert(_oop_size_offset != 0, "must be set"); |
547 return java_class->int_field(_oop_size_offset); | |
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548 } |
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549 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 550 assert(_oop_size_offset != 0, "must be set"); |
551 java_class->int_field_put(_oop_size_offset, size); | |
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552 } |
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553 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 554 assert(_static_oop_field_count_offset != 0, "must be set"); |
555 return java_class->int_field(_static_oop_field_count_offset); | |
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556 } |
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557 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 558 assert(_static_oop_field_count_offset != 0, "must be set"); |
559 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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560 } |
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561 |
0 | 562 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
563 // This should be improved by adding a field at the Java level or by | |
564 // introducing a new VM klass (see comment in ClassFileParser) | |
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565 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
0 | 566 if (type != T_VOID) { |
567 klassOop aklass = Universe::typeArrayKlassObj(type); | |
568 assert(aklass != NULL, "correct bootstrap"); | |
569 set_array_klass(java_class, aklass); | |
570 } | |
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571 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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572 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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573 java_lang_Class::set_static_oop_field_count(java_class, 0); |
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 | |
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587 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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588 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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589 Symbol* name = NULL; |
665
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590 bool is_instance = false; |
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591 if (is_primitive(java_class)) { |
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592 name = vmSymbols::type_signature(primitive_type(java_class)); |
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593 } else { |
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594 klassOop k = as_klassOop(java_class); |
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595 is_instance = Klass::cast(k)->oop_is_instance(); |
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596 name = Klass::cast(k)->name(); |
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597 } |
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598 if (name == NULL) { |
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599 st->print("<null>"); |
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600 return; |
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601 } |
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602 if (is_instance) st->print("L"); |
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603 st->write((char*) name->base(), (int) name->utf8_length()); |
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604 if (is_instance) st->print(";"); |
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605 } |
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606 |
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607 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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608 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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609 Symbol* name; |
665
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610 if (is_primitive(java_class)) { |
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611 name = vmSymbols::type_signature(primitive_type(java_class)); |
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612 // Because this can create a new symbol, the caller has to decrement |
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613 // the refcount, so make adjustment here and below for symbols returned |
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614 // that are not created or incremented due to a successful lookup. |
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615 name->increment_refcount(); |
665
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616 } else { |
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617 klassOop k = as_klassOop(java_class); |
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618 if (!Klass::cast(k)->oop_is_instance()) { |
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619 name = Klass::cast(k)->name(); |
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620 name->increment_refcount(); |
665
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621 } else { |
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622 ResourceMark rm; |
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623 const char* sigstr = Klass::cast(k)->signature_name(); |
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624 int siglen = (int) strlen(sigstr); |
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625 if (!intern_if_not_found) { |
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626 name = SymbolTable::probe(sigstr, siglen); |
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627 } else { |
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628 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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629 } |
665
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630 } |
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631 } |
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632 return name; |
665
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633 } |
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634 |
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635 |
0 | 636 klassOop java_lang_Class::array_klass(oop java_class) { |
3938 | 637 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 638 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
639 return k; | |
640 } | |
641 | |
642 | |
643 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
644 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
3938 | 645 java_class->obj_field_put(_array_klass_offset, klass); |
0 | 646 } |
647 | |
648 | |
649 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
3938 | 650 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
0 | 651 assert(constructor == NULL || constructor->is_method(), "should be method"); |
652 return methodOop(constructor); | |
653 } | |
654 | |
655 | |
656 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
657 assert(constructor->is_method(), "should be method"); | |
3938 | 658 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
0 | 659 } |
660 | |
661 | |
662 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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663 // should assert: |
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664 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
3938 | 665 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
0 | 666 return k == NULL; |
667 } | |
668 | |
669 | |
670 BasicType java_lang_Class::primitive_type(oop java_class) { | |
671 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
3938 | 672 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 673 BasicType type = T_VOID; |
674 if (ak != NULL) { | |
675 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
676 type = arrayKlass::cast(ak)->element_type(); | |
677 } else { | |
678 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
679 } | |
680 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
681 return type; | |
682 } | |
683 | |
665
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684 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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685 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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686 if (is_primitive(java_class)) { |
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687 if (reference_klass != NULL) |
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688 (*reference_klass) = NULL; |
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689 return primitive_type(java_class); |
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690 } else { |
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691 if (reference_klass != NULL) |
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692 (*reference_klass) = as_klassOop(java_class); |
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693 return T_OBJECT; |
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694 } |
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695 } |
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696 |
0 | 697 |
698 oop java_lang_Class::primitive_mirror(BasicType t) { | |
699 oop mirror = Universe::java_mirror(t); | |
1142 | 700 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 701 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
702 return mirror; | |
703 } | |
704 | |
705 bool java_lang_Class::offsets_computed = false; | |
706 int java_lang_Class::classRedefinedCount_offset = -1; | |
707 | |
708 void java_lang_Class::compute_offsets() { | |
709 assert(!offsets_computed, "offsets should be initialized only once"); | |
710 offsets_computed = true; | |
711 | |
3938 | 712 klassOop klass_oop = SystemDictionary::Class_klass(); |
0 | 713 // The classRedefinedCount field is only present starting in 1.5, |
714 // so don't go fatal. | |
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715 compute_optional_offset(classRedefinedCount_offset, |
3938 | 716 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
717 | |
718 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 719 } |
720 | |
721 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
722 if (!JDK_Version::is_gte_jdk15x_version() | |
723 || classRedefinedCount_offset == -1) { | |
724 // The classRedefinedCount field is only present starting in 1.5. | |
725 // If we don't have an offset for it then just return -1 as a marker. | |
726 return -1; | |
727 } | |
728 | |
729 return the_class_mirror->int_field(classRedefinedCount_offset); | |
730 } | |
731 | |
732 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
733 if (!JDK_Version::is_gte_jdk15x_version() | |
734 || classRedefinedCount_offset == -1) { | |
735 // The classRedefinedCount field is only present starting in 1.5. | |
736 // If we don't have an offset for it then nothing to set. | |
737 return; | |
738 } | |
739 | |
740 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
741 } | |
742 | |
743 | |
744 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
745 // platform thread structure, and a eetop offset which was used for thread | |
746 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
747 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
748 // instead of the privateInfo_offset. | |
749 // | |
750 // Note: The stackSize field is only present starting in 1.4. | |
751 | |
752 int java_lang_Thread::_name_offset = 0; | |
753 int java_lang_Thread::_group_offset = 0; | |
754 int java_lang_Thread::_contextClassLoader_offset = 0; | |
755 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
756 int java_lang_Thread::_priority_offset = 0; | |
757 int java_lang_Thread::_eetop_offset = 0; | |
758 int java_lang_Thread::_daemon_offset = 0; | |
759 int java_lang_Thread::_stillborn_offset = 0; | |
760 int java_lang_Thread::_stackSize_offset = 0; | |
761 int java_lang_Thread::_tid_offset = 0; | |
762 int java_lang_Thread::_thread_status_offset = 0; | |
763 int java_lang_Thread::_park_blocker_offset = 0; | |
764 int java_lang_Thread::_park_event_offset = 0 ; | |
765 | |
766 | |
767 void java_lang_Thread::compute_offsets() { | |
768 assert(_group_offset == 0, "offsets should be initialized only once"); | |
769 | |
1142 | 770 klassOop k = SystemDictionary::Thread_klass(); |
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771 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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772 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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773 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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774 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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775 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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776 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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777 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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778 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 779 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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780 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 781 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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782 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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783 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 784 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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785 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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786 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 787 vmSymbols::long_signature()); |
788 } | |
789 | |
790 | |
791 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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792 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 793 } |
794 | |
795 | |
796 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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797 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 798 } |
799 | |
800 | |
801 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
802 oop name = java_thread->obj_field(_name_offset); | |
803 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
804 return typeArrayOop(name); | |
805 } | |
806 | |
807 | |
808 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
809 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
810 java_thread->obj_field_put(_name_offset, name); | |
811 } | |
812 | |
813 | |
814 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
815 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
816 } | |
817 | |
818 | |
819 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
820 java_thread->int_field_put(_priority_offset, priority); | |
821 } | |
822 | |
823 | |
824 oop java_lang_Thread::threadGroup(oop java_thread) { | |
825 return java_thread->obj_field(_group_offset); | |
826 } | |
827 | |
828 | |
829 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
830 return java_thread->bool_field(_stillborn_offset) != 0; | |
831 } | |
832 | |
833 | |
834 // We never have reason to turn the stillborn bit off | |
835 void java_lang_Thread::set_stillborn(oop java_thread) { | |
836 java_thread->bool_field_put(_stillborn_offset, true); | |
837 } | |
838 | |
839 | |
840 bool java_lang_Thread::is_alive(oop java_thread) { | |
841 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
842 return (thr != NULL); | |
843 } | |
844 | |
845 | |
846 bool java_lang_Thread::is_daemon(oop java_thread) { | |
847 return java_thread->bool_field(_daemon_offset) != 0; | |
848 } | |
849 | |
850 | |
851 void java_lang_Thread::set_daemon(oop java_thread) { | |
852 java_thread->bool_field_put(_daemon_offset, true); | |
853 } | |
854 | |
855 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
856 return java_thread->obj_field(_contextClassLoader_offset); | |
857 } | |
858 | |
859 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
860 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
861 } | |
862 | |
863 | |
864 jlong java_lang_Thread::stackSize(oop java_thread) { | |
865 // The stackSize field is only present starting in 1.4 | |
866 if (_stackSize_offset > 0) { | |
867 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
868 return java_thread->long_field(_stackSize_offset); | |
869 } else { | |
870 return 0; | |
871 } | |
872 } | |
873 | |
874 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
875 void java_lang_Thread::set_thread_status(oop java_thread, | |
876 java_lang_Thread::ThreadStatus status) { | |
877 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
878 // The threadStatus is only present starting in 1.5 | |
879 if (_thread_status_offset > 0) { | |
880 java_thread->int_field_put(_thread_status_offset, status); | |
881 } | |
882 } | |
883 | |
884 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
885 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
886 assert(Thread::current()->is_VM_thread() || | |
887 JavaThread::current()->thread_state() == _thread_in_vm, | |
888 "Java Thread is not running in vm"); | |
889 // The threadStatus is only present starting in 1.5 | |
890 if (_thread_status_offset > 0) { | |
891 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
892 } else { | |
893 // All we can easily figure out is if it is alive, but that is | |
894 // enough info for a valid unknown status. | |
895 // These aren't restricted to valid set ThreadStatus values, so | |
896 // use JVMTI values and cast. | |
897 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
898 if (thr == NULL) { | |
899 // the thread hasn't run yet or is in the process of exiting | |
900 return NEW; | |
901 } | |
902 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
903 } | |
904 } | |
905 | |
906 | |
907 jlong java_lang_Thread::thread_id(oop java_thread) { | |
908 // The thread ID field is only present starting in 1.5 | |
909 if (_tid_offset > 0) { | |
910 return java_thread->long_field(_tid_offset); | |
911 } else { | |
912 return 0; | |
913 } | |
914 } | |
915 | |
916 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 917 assert(JDK_Version::current().supports_thread_park_blocker() && |
918 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 919 |
920 if (_park_blocker_offset > 0) { | |
921 return java_thread->obj_field(_park_blocker_offset); | |
922 } | |
923 | |
924 return NULL; | |
925 } | |
926 | |
927 jlong java_lang_Thread::park_event(oop java_thread) { | |
928 if (_park_event_offset > 0) { | |
929 return java_thread->long_field(_park_event_offset); | |
930 } | |
931 return 0; | |
932 } | |
933 | |
934 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
935 if (_park_event_offset > 0) { | |
936 java_thread->long_field_put(_park_event_offset, ptr); | |
937 return true; | |
938 } | |
939 return false; | |
940 } | |
941 | |
942 | |
943 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
944 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
945 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
946 switch (status) { | |
947 case NEW : return "NEW"; | |
948 case RUNNABLE : return "RUNNABLE"; | |
949 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
950 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
951 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
952 case PARKED : return "WAITING (parking)"; | |
953 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
954 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
955 case TERMINATED : return "TERMINATED"; | |
956 default : return "UNKNOWN"; | |
957 }; | |
958 } | |
959 int java_lang_ThreadGroup::_parent_offset = 0; | |
960 int java_lang_ThreadGroup::_name_offset = 0; | |
961 int java_lang_ThreadGroup::_threads_offset = 0; | |
962 int java_lang_ThreadGroup::_groups_offset = 0; | |
963 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
964 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
965 int java_lang_ThreadGroup::_daemon_offset = 0; | |
966 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
967 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
968 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
969 | |
970 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
971 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
972 return java_thread_group->obj_field(_parent_offset); | |
973 } | |
974 | |
975 // ("name as oop" accessor is not necessary) | |
976 | |
977 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
978 oop name = java_thread_group->obj_field(_name_offset); | |
979 // ThreadGroup.name can be null | |
980 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
981 } | |
982 | |
983 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
984 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
985 return java_thread_group->int_field(_nthreads_offset); | |
986 } | |
987 | |
988 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
989 oop threads = java_thread_group->obj_field(_threads_offset); | |
990 assert(threads != NULL, "threadgroups should have threads"); | |
991 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
992 return objArrayOop(threads); | |
993 } | |
994 | |
995 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
996 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
997 return java_thread_group->int_field(_ngroups_offset); | |
998 } | |
999 | |
1000 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1001 oop groups = java_thread_group->obj_field(_groups_offset); | |
1002 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1003 return objArrayOop(groups); | |
1004 } | |
1005 | |
1006 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1007 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1008 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1009 } | |
1010 | |
1011 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1012 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1013 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1014 } | |
1015 | |
1016 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1017 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1018 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1019 } | |
1020 | |
1021 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1022 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1023 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1024 } | |
1025 | |
1026 void java_lang_ThreadGroup::compute_offsets() { | |
1027 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1028 | |
1142 | 1029 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 1030 |
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1031 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1032 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1033 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1034 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1035 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1036 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1037 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1038 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1039 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1040 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1041 } |
1042 | |
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1043 oop java_lang_Throwable::unassigned_stacktrace() { |
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1044 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1045 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1046 if (UseCompressedOops) { |
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1047 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1048 } else { |
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1049 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1050 } |
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1051 } |
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1052 |
0 | 1053 oop java_lang_Throwable::backtrace(oop throwable) { |
1054 return throwable->obj_field_acquire(backtrace_offset); | |
1055 } | |
1056 | |
1057 | |
1058 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1059 throwable->release_obj_field_put(backtrace_offset, value); | |
1060 } | |
1061 | |
1062 | |
1063 oop java_lang_Throwable::message(oop throwable) { | |
1064 return throwable->obj_field(detailMessage_offset); | |
1065 } | |
1066 | |
1067 | |
1068 oop java_lang_Throwable::message(Handle throwable) { | |
1069 return throwable->obj_field(detailMessage_offset); | |
1070 } | |
1071 | |
1072 | |
1073 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1074 throwable->obj_field_put(detailMessage_offset, value); | |
1075 } | |
1076 | |
1077 | |
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1078 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1079 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1080 } |
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1081 |
0 | 1082 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1083 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1084 set_stacktrace(throwable, NULL); |
0 | 1085 } |
1086 | |
1087 | |
1088 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1089 ResourceMark rm; | |
1090 klassOop k = throwable->klass(); | |
1091 assert(k != NULL, "just checking"); | |
1092 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1093 oop msg = message(throwable); | |
1094 if (msg != NULL) { | |
1095 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1096 } | |
1097 } | |
1098 | |
1099 | |
1100 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1101 ResourceMark rm; | |
1102 klassOop k = throwable->klass(); | |
1103 assert(k != NULL, "just checking"); | |
1104 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1105 oop msg = message(throwable); | |
1106 if (msg != NULL) { | |
1107 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1108 } | |
1109 } | |
1110 | |
1111 // Print stack trace element to resource allocated buffer | |
1112 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
1113 // Get strings and string lengths | |
1114 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
1115 const char* klass_name = klass->external_name(); | |
1116 int buf_len = (int)strlen(klass_name); | |
1117 char* source_file_name; | |
1118 if (klass->source_file_name() == NULL) { | |
1119 source_file_name = NULL; | |
1120 } else { | |
1121 source_file_name = klass->source_file_name()->as_C_string(); | |
1122 buf_len += (int)strlen(source_file_name); | |
1123 } | |
1124 char* method_name = method->name()->as_C_string(); | |
1125 buf_len += (int)strlen(method_name); | |
1126 | |
1127 // Allocate temporary buffer with extra space for formatting and line number | |
1128 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1129 | |
1130 // Print stack trace line in buffer | |
1131 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1132 if (method->is_native()) { | |
1133 strcat(buf, "(Native Method)"); | |
1134 } else { | |
1135 int line_number = method->line_number_from_bci(bci); | |
1136 if (source_file_name != NULL && (line_number != -1)) { | |
1137 // Sourcename and linenumber | |
1138 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1139 } else if (source_file_name != NULL) { | |
1140 // Just sourcename | |
1141 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1142 } else { | |
1143 // Neither soucename and linenumber | |
1144 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1145 } | |
1146 nmethod* nm = method->code(); | |
1147 if (WizardMode && nm != NULL) { | |
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1148 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
0 | 1149 } |
1150 } | |
1151 | |
1152 return buf; | |
1153 } | |
1154 | |
1155 | |
1156 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1157 ResourceMark rm; | |
1158 char* buf = print_stack_element_to_buffer(method, bci); | |
1159 print_to_stream(stream, buf); | |
1160 } | |
1161 | |
1162 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1163 ResourceMark rm; | |
1164 char* buf = print_stack_element_to_buffer(method, bci); | |
1165 st->print_cr("%s", buf); | |
1166 } | |
1167 | |
1168 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1169 if (stream.is_null()) { | |
1170 tty->print_cr("%s", str); | |
1171 } else { | |
1172 EXCEPTION_MARK; | |
1173 JavaValue result(T_VOID); | |
1174 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1175 if (!HAS_PENDING_EXCEPTION) { | |
1176 JavaCalls::call_virtual(&result, | |
1177 stream, | |
1178 KlassHandle(THREAD, stream->klass()), | |
2177
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diff
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|
1179 vmSymbols::println_name(), |
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|
1180 vmSymbols::char_array_void_signature(), |
0 | 1181 arg, |
1182 THREAD); | |
1183 } | |
1184 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1185 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1186 } | |
1187 | |
1188 } | |
1189 | |
1190 | |
1191 const char* java_lang_Throwable::no_stack_trace_message() { | |
1192 return "\t<<no stack trace available>>"; | |
1193 } | |
1194 | |
1195 | |
1196 // Currently used only for exceptions occurring during startup | |
1197 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1198 Thread *THREAD = Thread::current(); | |
1199 Handle h_throwable(THREAD, throwable); | |
1200 while (h_throwable.not_null()) { | |
1201 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1202 if (result.is_null()) { | |
1203 st->print_cr(no_stack_trace_message()); | |
1204 return; | |
1205 } | |
1206 | |
1207 while (result.not_null()) { | |
1208 objArrayHandle methods (THREAD, | |
1209 objArrayOop(result->obj_at(trace_methods_offset))); | |
1210 typeArrayHandle bcis (THREAD, | |
1211 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1212 | |
1213 if (methods.is_null() || bcis.is_null()) { | |
1214 st->print_cr(no_stack_trace_message()); | |
1215 return; | |
1216 } | |
1217 | |
1218 int length = methods()->length(); | |
1219 for (int index = 0; index < length; index++) { | |
1220 methodOop method = methodOop(methods()->obj_at(index)); | |
1221 if (method == NULL) goto handle_cause; | |
1222 int bci = bcis->ushort_at(index); | |
1223 print_stack_element(st, method, bci); | |
1224 } | |
1225 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1226 } | |
1227 handle_cause: | |
1228 { | |
1229 EXCEPTION_MARK; | |
1230 JavaValue result(T_OBJECT); | |
1231 JavaCalls::call_virtual(&result, | |
1232 h_throwable, | |
1233 KlassHandle(THREAD, h_throwable->klass()), | |
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1234 vmSymbols::getCause_name(), |
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1235 vmSymbols::void_throwable_signature(), |
0 | 1236 THREAD); |
1237 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1238 if (HAS_PENDING_EXCEPTION) { | |
1239 CLEAR_PENDING_EXCEPTION; | |
1240 h_throwable = Handle(); | |
1241 } else { | |
1242 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1243 if (h_throwable.not_null()) { | |
1244 st->print("Caused by: "); | |
1245 print(h_throwable, st); | |
1246 st->cr(); | |
1247 } | |
1248 } | |
1249 } | |
1250 } | |
1251 } | |
1252 | |
1253 | |
1254 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1255 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1256 Thread *thread = Thread::current(); | |
1257 Handle stream(thread, print_stream); | |
1258 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1259 if (result.is_null()) { | |
1260 print_to_stream(stream, no_stack_trace_message()); | |
1261 return; | |
1262 } | |
1263 | |
1264 while (result.not_null()) { | |
1265 objArrayHandle methods (thread, | |
1266 objArrayOop(result->obj_at(trace_methods_offset))); | |
1267 typeArrayHandle bcis (thread, | |
1268 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1269 | |
1270 if (methods.is_null() || bcis.is_null()) { | |
1271 print_to_stream(stream, no_stack_trace_message()); | |
1272 return; | |
1273 } | |
1274 | |
1275 int length = methods()->length(); | |
1276 for (int index = 0; index < length; index++) { | |
1277 methodOop method = methodOop(methods()->obj_at(index)); | |
1278 if (method == NULL) return; | |
1279 int bci = bcis->ushort_at(index); | |
1280 print_stack_element(stream, method, bci); | |
1281 } | |
1282 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1283 } | |
1284 } | |
1285 | |
1286 // This class provides a simple wrapper over the internal structure of | |
1287 // exception backtrace to insulate users of the backtrace from needing | |
1288 // to know what it looks like. | |
1289 class BacktraceBuilder: public StackObj { | |
1290 private: | |
1291 Handle _backtrace; | |
1292 objArrayOop _head; | |
1293 objArrayOop _methods; | |
1294 typeArrayOop _bcis; | |
1295 int _index; | |
1296 No_Safepoint_Verifier _nsv; | |
1297 | |
1298 public: | |
1299 | |
1300 enum { | |
1301 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1302 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1303 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1304 trace_size = java_lang_Throwable::trace_size, | |
1305 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1306 }; | |
1307 | |
1308 // constructor for new backtrace | |
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1309 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
0 | 1310 expand(CHECK); |
1311 _backtrace = _head; | |
1312 _index = 0; | |
1313 } | |
1314 | |
1315 void expand(TRAPS) { | |
1316 objArrayHandle old_head(THREAD, _head); | |
1317 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1318 | |
1319 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1320 objArrayHandle new_head(THREAD, head); | |
1321 | |
1322 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1323 objArrayHandle new_methods(THREAD, methods); | |
1324 | |
1325 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1326 typeArrayHandle new_bcis(THREAD, bcis); | |
1327 | |
1328 if (!old_head.is_null()) { | |
1329 old_head->obj_at_put(trace_next_offset, new_head()); | |
1330 } | |
1331 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1332 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1333 | |
1334 _head = new_head(); | |
1335 _methods = new_methods(); | |
1336 _bcis = new_bcis(); | |
1337 _index = 0; | |
1338 } | |
1339 | |
1340 oop backtrace() { | |
1341 return _backtrace(); | |
1342 } | |
1343 | |
1344 inline void push(methodOop method, short bci, TRAPS) { | |
1345 if (_index >= trace_chunk_size) { | |
1346 methodHandle mhandle(THREAD, method); | |
1347 expand(CHECK); | |
1348 method = mhandle(); | |
1349 } | |
1350 | |
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1351 _methods->obj_at_put(_index, method); |
0 | 1352 _bcis->ushort_at_put(_index, bci); |
1353 _index++; | |
1354 } | |
1355 | |
1356 methodOop current_method() { | |
1357 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1358 return methodOop(_methods->obj_at(_index)); | |
1359 } | |
1360 | |
1361 jushort current_bci() { | |
1362 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1363 return _bcis->ushort_at(_index); | |
1364 } | |
1365 }; | |
1366 | |
1367 | |
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1368 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1369 if (!StackTraceInThrowable) return; |
1370 ResourceMark rm(THREAD); | |
1371 | |
1372 // Start out by clearing the backtrace for this object, in case the VM | |
1373 // runs out of memory while allocating the stack trace | |
1374 set_backtrace(throwable(), NULL); | |
1375 if (JDK_Version::is_gte_jdk14x_version()) { | |
1376 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1377 // refilling occurs | |
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1378 // This is unnecessary in 1.7+ but harmless |
0 | 1379 clear_stacktrace(throwable()); |
1380 } | |
1381 | |
1382 int max_depth = MaxJavaStackTraceDepth; | |
1383 JavaThread* thread = (JavaThread*)THREAD; | |
1384 BacktraceBuilder bt(CHECK); | |
1385 | |
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1386 // If there is no Java frame just return the method that was being called |
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1387 // with bci 0 |
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1388 if (!thread->has_last_Java_frame()) { |
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1389 if (max_depth >= 1 && method() != NULL) { |
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1390 bt.push(method(), 0, CHECK); |
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1391 set_backtrace(throwable(), bt.backtrace()); |
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1392 } |
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1393 return; |
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|
1394 } |
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1395 |
0 | 1396 // Instead of using vframe directly, this version of fill_in_stack_trace |
1397 // basically handles everything by hand. This significantly improved the | |
1398 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1399 // See bug 6333838 for more details. | |
1400 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1401 // trace as utilizing vframe. | |
1402 #ifdef ASSERT | |
1403 vframeStream st(thread); | |
1404 methodHandle st_method(THREAD, st.method()); | |
1405 #endif | |
1406 int total_count = 0; | |
1407 RegisterMap map(thread, false); | |
1408 int decode_offset = 0; | |
1409 nmethod* nm = NULL; | |
1410 bool skip_fillInStackTrace_check = false; | |
1411 bool skip_throwableInit_check = false; | |
1412 | |
1413 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1414 methodOop method = NULL; | |
1415 int bci = 0; | |
1416 | |
1417 // Compiled java method case. | |
1418 if (decode_offset != 0) { | |
1419 DebugInfoReadStream stream(nm, decode_offset); | |
1420 decode_offset = stream.read_int(); | |
1421 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1422 bci = stream.read_bci(); |
0 | 1423 } else { |
1424 if (fr.is_first_frame()) break; | |
1425 address pc = fr.pc(); | |
1426 if (fr.is_interpreted_frame()) { | |
1427 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1428 method = fr.interpreter_frame_method(); | |
1429 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1430 fr = fr.sender(&map); | |
1431 } else { | |
1432 CodeBlob* cb = fr.cb(); | |
1433 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1434 // but non nmethod | |
1435 fr = fr.sender(&map); | |
1436 if (cb == NULL || !cb->is_nmethod()) { | |
1437 continue; | |
1438 } | |
1439 nm = (nmethod*)cb; | |
1440 if (nm->method()->is_native()) { | |
1441 method = nm->method(); | |
1442 bci = 0; | |
1443 } else { | |
1444 PcDesc* pd = nm->pc_desc_at(pc); | |
1445 decode_offset = pd->scope_decode_offset(); | |
1446 // if decode_offset is not equal to 0, it will execute the | |
1447 // "compiled java method case" at the beginning of the loop. | |
1448 continue; | |
1449 } | |
1450 } | |
1451 } | |
1452 #ifdef ASSERT | |
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1453 assert(st_method() == method && st.bci() == bci, |
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1454 "Wrong stack trace"); |
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|
1455 st.next(); |
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|
1456 // vframeStream::method isn't GC-safe so store off a copy |
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diff
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|
1457 // of the methodOop in case we GC. |
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1458 if (!st.at_end()) { |
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1459 st_method = st.method(); |
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|
1460 } |
0 | 1461 #endif |
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1462 |
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1463 // the format of the stacktrace will be: |
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1464 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1465 // - 0 or more <init> methods for the exception class (skipped) |
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1466 // - rest of the stack |
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1467 |
0 | 1468 if (!skip_fillInStackTrace_check) { |
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1469 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1470 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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|
1471 throwable->is_a(method->method_holder())) { |
0 | 1472 continue; |
1473 } | |
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1474 else { |
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1475 skip_fillInStackTrace_check = true; // gone past them all |
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1476 } |
0 | 1477 } |
1478 if (!skip_throwableInit_check) { | |
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1479 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1480 |
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1481 // skip <init> methods of the exception class and superclasses |
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1482 // This is simlar to classic VM. |
0 | 1483 if (method->name() == vmSymbols::object_initializer_name() && |
1484 throwable->is_a(method->method_holder())) { | |
1485 continue; | |
1486 } else { | |
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1487 // there are none or we've seen them all - either way stop checking |
0 | 1488 skip_throwableInit_check = true; |
1489 } | |
1490 } | |
1491 bt.push(method, bci, CHECK); | |
1492 total_count++; | |
1493 } | |
1494 | |
1495 // Put completed stack trace into throwable object | |
1496 set_backtrace(throwable(), bt.backtrace()); | |
1497 } | |
1498 | |
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1499 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1500 // No-op if stack trace is disabled |
1501 if (!StackTraceInThrowable) { | |
1502 return; | |
1503 } | |
1504 | |
1505 // Disable stack traces for some preallocated out of memory errors | |
1506 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1507 return; | |
1508 } | |
1509 | |
1510 PRESERVE_EXCEPTION_MARK; | |
1511 | |
1512 JavaThread* thread = JavaThread::active(); | |
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1513 fill_in_stack_trace(throwable, method, thread); |
0 | 1514 // ignore exceptions thrown during stack trace filling |
1515 CLEAR_PENDING_EXCEPTION; | |
1516 } | |
1517 | |
1518 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1519 // Allocate stack trace - backtrace is created but not filled in | |
1520 | |
1521 // No-op if stack trace is disabled | |
1522 if (!StackTraceInThrowable) return; | |
1523 | |
1524 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1525 objArrayHandle backtrace (THREAD, h_oop); | |
1526 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1527 objArrayHandle methods (THREAD, m_oop); | |
1528 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1529 typeArrayHandle bcis(THREAD, b); | |
1530 | |
1531 // backtrace has space for one chunk (next is NULL) | |
1532 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1533 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1534 set_backtrace(throwable(), backtrace()); | |
1535 } | |
1536 | |
1537 | |
1538 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1539 // Fill in stack trace into preallocated backtrace (no GC) | |
1540 | |
1541 // No-op if stack trace is disabled | |
1542 if (!StackTraceInThrowable) return; | |
1543 | |
1142 | 1544 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1545 |
1546 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1547 assert(backtrace != NULL, "backtrace not preallocated"); | |
1548 | |
1549 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1550 objArrayOop methods = objArrayOop(m); | |
1551 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1552 | |
1553 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1554 typeArrayOop bcis = typeArrayOop(b); | |
1555 assert(bcis != NULL, "bci array not preallocated"); | |
1556 | |
1557 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1558 | |
1559 JavaThread* thread = JavaThread::current(); | |
1560 ResourceMark rm(thread); | |
1561 vframeStream st(thread); | |
1562 | |
1563 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1564 // methods as preallocated errors aren't created by "java" code. | |
1565 | |
1566 // fill in as much stack trace as possible | |
1567 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1568 int chunk_count = 0; | |
1569 | |
1570 for (;!st.at_end(); st.next()) { | |
1571 // add element | |
1572 bcis->ushort_at_put(chunk_count, st.bci()); | |
1573 methods->obj_at_put(chunk_count, st.method()); | |
1574 | |
1575 chunk_count++; | |
1576 | |
1577 // Bail-out for deep stacks | |
1578 if (chunk_count >= max_chunks) break; | |
1579 } | |
3820
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1580 |
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1581 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1582 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1583 // can be removed in a JDK using this JVM version |
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1584 if (JDK_Version::is_gte_jdk17x_version()) { |
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1585 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1586 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1587 } |
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1588 |
0 | 1589 } |
1590 | |
1591 | |
1592 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1593 if (throwable == NULL) { | |
1594 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1595 } | |
1596 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1597 int depth = 0; | |
1598 if (chunk != NULL) { | |
1599 // Iterate over chunks and count full ones | |
1600 while (true) { | |
1601 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1602 if (next == NULL) break; | |
1603 depth += trace_chunk_size; | |
1604 chunk = next; | |
1605 } | |
1606 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1607 // Count element in remaining partial chunk | |
1608 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1609 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1610 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1611 for (int i = 0; i < methods->length(); i++) { | |
1612 if (methods->obj_at(i) == NULL) break; | |
1613 depth++; | |
1614 } | |
1615 } | |
1616 return depth; | |
1617 } | |
1618 | |
1619 | |
1620 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1621 if (throwable == NULL) { | |
1622 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1623 } | |
1624 if (index < 0) { | |
1625 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1626 } | |
1627 // Compute how many chunks to skip and index into actual chunk | |
1628 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1629 int skip_chunks = index / trace_chunk_size; | |
1630 int chunk_index = index % trace_chunk_size; | |
1631 while (chunk != NULL && skip_chunks > 0) { | |
1632 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1633 skip_chunks--; | |
1634 } | |
1635 if (chunk == NULL) { | |
1636 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1637 } | |
1638 // Get method,bci from chunk | |
1639 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1640 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1641 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1642 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1643 int bci = bcis->ushort_at(chunk_index); | |
1644 // Chunk can be partial full | |
1645 if (method.is_null()) { | |
1646 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1647 } | |
1648 | |
1649 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1650 return element; | |
1651 } | |
1652 | |
1653 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1654 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1655 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1656 | |
1657 // Allocate java.lang.StackTraceElement instance | |
1142 | 1658 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1659 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1660 instanceKlassHandle ik (THREAD, k); |
1661 if (ik->should_be_initialized()) { | |
1662 ik->initialize(CHECK_0); | |
1663 } | |
1664 | |
1665 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1666 // Fill in class name | |
1667 ResourceMark rm(THREAD); | |
1668 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1669 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1670 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1671 // Fill in method name | |
1672 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1673 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1674 // Fill in source file name | |
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1675 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1676 oop filename = StringTable::intern(source, CHECK_0); |
1677 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1678 // File in source line number | |
1679 int line_number; | |
1680 if (method->is_native()) { | |
1681 // Negative value different from -1 below, enabling Java code in | |
1682 // class java.lang.StackTraceElement to distinguish "native" from | |
1683 // "no LineNumberTable". | |
1684 line_number = -2; | |
1685 } else { | |
1686 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1687 line_number = method->line_number_from_bci(bci); | |
1688 } | |
1689 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1690 | |
1691 return element(); | |
1692 } | |
1693 | |
1694 | |
1695 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1696 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1697 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1698 } |
1699 | |
1700 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1701 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1702 return (jboolean) reflect->bool_field(override_offset); | |
1703 } | |
1704 | |
1705 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1706 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1707 reflect->bool_field_put(override_offset, (int) value); | |
1708 } | |
1709 | |
1710 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1711 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1712 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1713 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1714 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1715 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1716 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1717 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1718 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1719 // The generic signature and annotations fields are only present in 1.5 |
1720 signature_offset = -1; | |
1721 annotations_offset = -1; | |
1722 parameter_annotations_offset = -1; | |
1723 annotation_default_offset = -1; | |
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1724 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1725 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1726 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1727 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1728 } |
1729 | |
1730 Handle java_lang_reflect_Method::create(TRAPS) { | |
1731 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1732 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1733 // This class is eagerly initialized during VM initialization, since we keep a refence |
1734 // to one of the methods | |
1735 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1736 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1737 } | |
1738 | |
1739 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1741 return reflect->obj_field(clazz_offset); | |
1742 } | |
1743 | |
1744 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1746 reflect->obj_field_put(clazz_offset, value); | |
1747 } | |
1748 | |
1749 int java_lang_reflect_Method::slot(oop reflect) { | |
1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1751 return reflect->int_field(slot_offset); | |
1752 } | |
1753 | |
1754 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1755 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1756 reflect->int_field_put(slot_offset, value); | |
1757 } | |
1758 | |
1759 oop java_lang_reflect_Method::name(oop method) { | |
1760 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1761 return method->obj_field(name_offset); | |
1762 } | |
1763 | |
1764 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1765 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1766 method->obj_field_put(name_offset, value); | |
1767 } | |
1768 | |
1769 oop java_lang_reflect_Method::return_type(oop method) { | |
1770 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1771 return method->obj_field(returnType_offset); | |
1772 } | |
1773 | |
1774 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1776 method->obj_field_put(returnType_offset, value); | |
1777 } | |
1778 | |
1779 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1781 return method->obj_field(parameterTypes_offset); | |
1782 } | |
1783 | |
1784 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1786 method->obj_field_put(parameterTypes_offset, value); | |
1787 } | |
1788 | |
1789 oop java_lang_reflect_Method::exception_types(oop method) { | |
1790 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1791 return method->obj_field(exceptionTypes_offset); | |
1792 } | |
1793 | |
1794 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1795 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1796 method->obj_field_put(exceptionTypes_offset, value); | |
1797 } | |
1798 | |
1799 int java_lang_reflect_Method::modifiers(oop method) { | |
1800 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1801 return method->int_field(modifiers_offset); | |
1802 } | |
1803 | |
1804 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1805 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1806 method->int_field_put(modifiers_offset, value); | |
1807 } | |
1808 | |
1809 bool java_lang_reflect_Method::has_signature_field() { | |
1810 return (signature_offset >= 0); | |
1811 } | |
1812 | |
1813 oop java_lang_reflect_Method::signature(oop method) { | |
1814 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1815 assert(has_signature_field(), "signature field must be present"); | |
1816 return method->obj_field(signature_offset); | |
1817 } | |
1818 | |
1819 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
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 method->obj_field_put(signature_offset, value); | |
1823 } | |
1824 | |
1825 bool java_lang_reflect_Method::has_annotations_field() { | |
1826 return (annotations_offset >= 0); | |
1827 } | |
1828 | |
1829 oop java_lang_reflect_Method::annotations(oop method) { | |
1830 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1831 assert(has_annotations_field(), "annotations field must be present"); | |
1832 return method->obj_field(annotations_offset); | |
1833 } | |
1834 | |
1835 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
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 method->obj_field_put(annotations_offset, value); | |
1839 } | |
1840 | |
1841 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1842 return (parameter_annotations_offset >= 0); | |
1843 } | |
1844 | |
1845 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1846 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1847 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1848 return method->obj_field(parameter_annotations_offset); | |
1849 } | |
1850 | |
1851 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
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 method->obj_field_put(parameter_annotations_offset, value); | |
1855 } | |
1856 | |
1857 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1858 return (annotation_default_offset >= 0); | |
1859 } | |
1860 | |
1861 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1862 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1863 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1864 return method->obj_field(annotation_default_offset); | |
1865 } | |
1866 | |
1867 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
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 method->obj_field_put(annotation_default_offset, value); | |
1871 } | |
1872 | |
1873 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1874 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1875 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1876 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1877 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1878 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1879 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1880 // The generic signature and annotations fields are only present in 1.5 |
1881 signature_offset = -1; | |
1882 annotations_offset = -1; | |
1883 parameter_annotations_offset = -1; | |
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1884 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1885 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1886 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1887 } |
1888 | |
1889 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1891 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1892 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1893 instanceKlassHandle klass (THREAD, k); | |
1894 // Ensure it is initialized | |
1895 klass->initialize(CHECK_NH); | |
1896 return klass->allocate_instance_handle(CHECK_NH); | |
1897 } | |
1898 | |
1899 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1901 return reflect->obj_field(clazz_offset); | |
1902 } | |
1903 | |
1904 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1906 reflect->obj_field_put(clazz_offset, value); | |
1907 } | |
1908 | |
1909 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1911 return constructor->obj_field(parameterTypes_offset); | |
1912 } | |
1913 | |
1914 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1916 constructor->obj_field_put(parameterTypes_offset, value); | |
1917 } | |
1918 | |
1919 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1921 return constructor->obj_field(exceptionTypes_offset); | |
1922 } | |
1923 | |
1924 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1926 constructor->obj_field_put(exceptionTypes_offset, value); | |
1927 } | |
1928 | |
1929 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1931 return reflect->int_field(slot_offset); | |
1932 } | |
1933 | |
1934 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1936 reflect->int_field_put(slot_offset, value); | |
1937 } | |
1938 | |
1939 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1941 return constructor->int_field(modifiers_offset); | |
1942 } | |
1943 | |
1944 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1945 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1946 constructor->int_field_put(modifiers_offset, value); | |
1947 } | |
1948 | |
1949 bool java_lang_reflect_Constructor::has_signature_field() { | |
1950 return (signature_offset >= 0); | |
1951 } | |
1952 | |
1953 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1954 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1955 assert(has_signature_field(), "signature field must be present"); | |
1956 return constructor->obj_field(signature_offset); | |
1957 } | |
1958 | |
1959 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
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 constructor->obj_field_put(signature_offset, value); | |
1963 } | |
1964 | |
1965 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1966 return (annotations_offset >= 0); | |
1967 } | |
1968 | |
1969 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1970 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1971 assert(has_annotations_field(), "annotations field must be present"); | |
1972 return constructor->obj_field(annotations_offset); | |
1973 } | |
1974 | |
1975 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
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 constructor->obj_field_put(annotations_offset, value); | |
1979 } | |
1980 | |
1981 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1982 return (parameter_annotations_offset >= 0); | |
1983 } | |
1984 | |
1985 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1986 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1987 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1988 return method->obj_field(parameter_annotations_offset); | |
1989 } | |
1990 | |
1991 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
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 method->obj_field_put(parameter_annotations_offset, value); | |
1995 } | |
1996 | |
1997 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 1998 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1999 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2000 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2001 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2002 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2003 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2004 // The generic signature and annotations fields are only present in 1.5 |
2005 signature_offset = -1; | |
2006 annotations_offset = -1; | |
132
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2007 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2008 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2009 } |
2010 | |
2011 Handle java_lang_reflect_Field::create(TRAPS) { | |
2012 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2013 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 2014 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
2015 instanceKlassHandle klass (THREAD, k); | |
2016 // Ensure it is initialized | |
2017 klass->initialize(CHECK_NH); | |
2018 return klass->allocate_instance_handle(CHECK_NH); | |
2019 } | |
2020 | |
2021 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2022 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2023 return reflect->obj_field(clazz_offset); | |
2024 } | |
2025 | |
2026 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2027 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2028 reflect->obj_field_put(clazz_offset, value); | |
2029 } | |
2030 | |
2031 oop java_lang_reflect_Field::name(oop field) { | |
2032 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2033 return field->obj_field(name_offset); | |
2034 } | |
2035 | |
2036 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2038 field->obj_field_put(name_offset, value); | |
2039 } | |
2040 | |
2041 oop java_lang_reflect_Field::type(oop field) { | |
2042 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2043 return field->obj_field(type_offset); | |
2044 } | |
2045 | |
2046 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2048 field->obj_field_put(type_offset, value); | |
2049 } | |
2050 | |
2051 int java_lang_reflect_Field::slot(oop reflect) { | |
2052 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2053 return reflect->int_field(slot_offset); | |
2054 } | |
2055 | |
2056 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2057 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2058 reflect->int_field_put(slot_offset, value); | |
2059 } | |
2060 | |
2061 int java_lang_reflect_Field::modifiers(oop field) { | |
2062 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2063 return field->int_field(modifiers_offset); | |
2064 } | |
2065 | |
2066 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2067 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2068 field->int_field_put(modifiers_offset, value); | |
2069 } | |
2070 | |
2071 bool java_lang_reflect_Field::has_signature_field() { | |
2072 return (signature_offset >= 0); | |
2073 } | |
2074 | |
2075 oop java_lang_reflect_Field::signature(oop field) { | |
2076 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2077 assert(has_signature_field(), "signature field must be present"); | |
2078 return field->obj_field(signature_offset); | |
2079 } | |
2080 | |
2081 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
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 field->obj_field_put(signature_offset, value); | |
2085 } | |
2086 | |
2087 bool java_lang_reflect_Field::has_annotations_field() { | |
2088 return (annotations_offset >= 0); | |
2089 } | |
2090 | |
2091 oop java_lang_reflect_Field::annotations(oop field) { | |
2092 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2093 assert(has_annotations_field(), "annotations field must be present"); | |
2094 return field->obj_field(annotations_offset); | |
2095 } | |
2096 | |
2097 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
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 field->obj_field_put(annotations_offset, value); | |
2101 } | |
2102 | |
2103 | |
2104 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 2105 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2106 // This null test can be removed post beta |
2107 if (k != NULL) { | |
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2108 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 2109 } |
2110 } | |
2111 | |
2112 | |
2113 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2114 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 2115 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2116 instanceKlassHandle klass (THREAD, k); |
2117 // Ensure it is initialized | |
2118 klass->initialize(CHECK_NH); | |
2119 return klass->allocate_instance_handle(CHECK_NH); | |
2120 } | |
2121 | |
2122 | |
2123 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
2124 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2125 return reflect->obj_field(_cp_oop_offset); | |
2126 } | |
2127 | |
2128 | |
2129 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2130 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2131 reflect->obj_field_put(_cp_oop_offset, value); | |
2132 } | |
2133 | |
2134 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2135 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2136 // This null test can be removed post beta |
2137 if (k != NULL) { | |
132
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2138 compute_offset(_base_offset, k, |
0 | 2139 vmSymbols::base_name(), vmSymbols::object_signature()); |
2140 } | |
2141 } | |
2142 | |
132
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2143 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2144 klassOop k = SystemDictionary::box_klass(type); |
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2145 if (k == NULL) return NULL; |
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2146 instanceKlassHandle h (THREAD, k); |
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2147 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2148 return h->allocate_instance(THREAD); |
0 | 2149 } |
2150 | |
2151 | |
2152 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2153 oop box = initialize_and_allocate(type, CHECK_0); |
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2154 if (box == NULL) return NULL; |
0 | 2155 switch (type) { |
2156 case T_BOOLEAN: | |
2157 box->bool_field_put(value_offset, value->z); | |
2158 break; | |
2159 case T_CHAR: | |
2160 box->char_field_put(value_offset, value->c); | |
2161 break; | |
2162 case T_FLOAT: | |
2163 box->float_field_put(value_offset, value->f); | |
2164 break; | |
2165 case T_DOUBLE: | |
165
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2166 box->double_field_put(long_value_offset, value->d); |
0 | 2167 break; |
2168 case T_BYTE: | |
2169 box->byte_field_put(value_offset, value->b); | |
2170 break; | |
2171 case T_SHORT: | |
2172 box->short_field_put(value_offset, value->s); | |
2173 break; | |
2174 case T_INT: | |
2175 box->int_field_put(value_offset, value->i); | |
2176 break; | |
2177 case T_LONG: | |
165
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2178 box->long_field_put(long_value_offset, value->j); |
0 | 2179 break; |
2180 default: | |
2181 return NULL; | |
2182 } | |
2183 return box; | |
2184 } | |
2185 | |
2186 | |
132
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2187 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2188 if (box == NULL) return T_ILLEGAL; |
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2189 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2190 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2191 return T_ILLEGAL; |
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2192 return type; |
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2193 } |
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2194 |
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2195 |
0 | 2196 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2197 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2198 switch (type) { |
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2199 case T_BOOLEAN: |
0 | 2200 value->z = box->bool_field(value_offset); |
132
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2201 break; |
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2202 case T_CHAR: |
0 | 2203 value->c = box->char_field(value_offset); |
132
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2204 break; |
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2205 case T_FLOAT: |
0 | 2206 value->f = box->float_field(value_offset); |
132
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2207 break; |
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2208 case T_DOUBLE: |
165
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2209 value->d = box->double_field(long_value_offset); |
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2210 break; |
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2211 case T_BYTE: |
0 | 2212 value->b = box->byte_field(value_offset); |
132
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2213 break; |
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2214 case T_SHORT: |
0 | 2215 value->s = box->short_field(value_offset); |
132
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2216 break; |
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2217 case T_INT: |
0 | 2218 value->i = box->int_field(value_offset); |
132
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2219 break; |
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2220 case T_LONG: |
165
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2221 value->j = box->long_field(long_value_offset); |
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2222 break; |
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2223 default: |
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2224 return T_ILLEGAL; |
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2225 } // end switch |
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2226 return type; |
0 | 2227 } |
2228 | |
2229 | |
2230 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2231 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2232 switch (type) { |
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2233 case T_BOOLEAN: |
0 | 2234 box->bool_field_put(value_offset, value->z); |
132
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2235 break; |
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2236 case T_CHAR: |
0 | 2237 box->char_field_put(value_offset, value->c); |
132
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2238 break; |
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2239 case T_FLOAT: |
0 | 2240 box->float_field_put(value_offset, value->f); |
132
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2241 break; |
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2242 case T_DOUBLE: |
165
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2243 box->double_field_put(long_value_offset, value->d); |
132
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2244 break; |
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2245 case T_BYTE: |
0 | 2246 box->byte_field_put(value_offset, value->b); |
132
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2247 break; |
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2248 case T_SHORT: |
0 | 2249 box->short_field_put(value_offset, value->s); |
132
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diff
changeset
|
2250 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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diff
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|
2251 case T_INT: |
0 | 2252 box->int_field_put(value_offset, value->i); |
132
60b728ec77c1
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diff
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|
2253 break; |
60b728ec77c1
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jrose
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113
diff
changeset
|
2254 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
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diff
changeset
|
2255 box->long_field_put(long_value_offset, value->j); |
132
60b728ec77c1
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diff
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|
2256 break; |
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6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
2257 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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113
diff
changeset
|
2258 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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diff
changeset
|
2259 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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diff
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|
2260 return type; |
0 | 2261 } |
2262 | |
2263 | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
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|
2264 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2265 switch (type) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2266 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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diff
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|
2267 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
changeset
|
2268 case T_BYTE: st->print("%d", value->b); break; |
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6814659: separable cleanups and subroutines for 6655638
jrose
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diff
changeset
|
2269 case T_SHORT: st->print("%d", value->s); break; |
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6814659: separable cleanups and subroutines for 6655638
jrose
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diff
changeset
|
2270 case T_INT: st->print("%d", value->i); break; |
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diff
changeset
|
2271 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
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diff
changeset
|
2272 case T_FLOAT: st->print("%f", value->f); break; |
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6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2273 case T_DOUBLE: st->print("%lf", value->d); break; |
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6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2274 default: st->print("type %d?", type); break; |
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579
diff
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|
2275 } |
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jrose
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579
diff
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|
2276 } |
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6814659: separable cleanups and subroutines for 6655638
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diff
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|
2277 |
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|
2278 |
0 | 2279 // Support for java_lang_ref_Reference |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
|
2280 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2281 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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|
2282 address addr = ik->static_field_addr(static_lock_offset); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2283 if (UseCompressedOops) { |
ba764ed4b6f2
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98
diff
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|
2284 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
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|
2285 } else { |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2286 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
2287 } |
0 | 2288 } |
2289 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2290 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2291 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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|
2292 address addr = ik->static_field_addr(static_pending_offset); |
113
ba764ed4b6f2
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98
diff
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|
2293 // XXX This might not be HeapWord aligned, almost rather be char *. |
ba764ed4b6f2
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diff
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|
2294 return (HeapWord*)addr; |
0 | 2295 } |
2296 | |
113
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98
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|
2297 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2298 char *addr = (char *)pending_list_addr(); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
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|
2299 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
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|
2300 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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|
2301 } else { |
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diff
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|
2302 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
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98
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|
2303 } |
0 | 2304 } |
2305 | |
2306 | |
2307 // Support for java_lang_ref_SoftReference | |
2308 | |
2309 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2310 return ref->long_field(timestamp_offset); | |
2311 } | |
2312 | |
2313 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2314 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
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|
2315 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
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2357
diff
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|
2316 return *offset; |
0 | 2317 } |
2318 | |
2319 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2320 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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parents:
2357
diff
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|
2321 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
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|
2322 *offset = value; |
0 | 2323 } |
2324 | |
2325 | |
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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|
2326 // Support for java_lang_invoke_MethodHandle |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2327 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2328 int java_lang_invoke_MethodHandle::_type_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2329 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2330 int java_lang_invoke_MethodHandle::_vmentry_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2331 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2332 int java_lang_invoke_MemberName::_clazz_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2333 int java_lang_invoke_MemberName::_name_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2334 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
|
2335 int java_lang_invoke_MemberName::_flags_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2336 int java_lang_invoke_MemberName::_vmtarget_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2337 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
|
2338 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2339 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
|
2340 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2341 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2342 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
|
2343 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2344 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2345 |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2346 int java_lang_invoke_CountingMethodHandle::_vmcount_offset; |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2347 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2348 void java_lang_invoke_MethodHandle::compute_offsets() { |
3938 | 2349 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
2350 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2351 bool allow_super = false; |
3938 | 2352 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
2353 METHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2354 } |
2355 } | |
2356 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2357 void java_lang_invoke_MemberName::compute_offsets() { |
3938 | 2358 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
2359 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2360 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2361 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2362 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2363 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2364 compute_offset(_vmindex_offset, klass_oop, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2365 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2366 } |
2367 } | |
2368 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2369 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2370 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2371 if (k != NULL && EnableInvokeDynamic) { |
3938 | 2372 DIRECTMETHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2373 } |
2374 } | |
2375 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2376 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2377 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2378 if (k != NULL && EnableInvokeDynamic) { |
710 | 2379 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
2380 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2381 } | |
2382 } | |
2383 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2384 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2385 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2386 if (k != NULL && EnableInvokeDynamic) { |
710 | 2387 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
2388 } | |
2389 } | |
2390 | |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2391 void java_lang_invoke_CountingMethodHandle::compute_offsets() { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
changeset
|
2392 klassOop k = SystemDictionary::CountingMethodHandle_klass(); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2393 if (k != NULL && EnableInvokeDynamic) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
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3900
diff
changeset
|
2394 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
|
2395 } |
c26de9aef2ed
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never
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3900
diff
changeset
|
2396 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2397 |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2398 int java_lang_invoke_CountingMethodHandle::vmcount(oop mh) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
changeset
|
2399 assert(is_instance(mh), "CMH only"); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
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|
2400 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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|
2401 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2402 |
c26de9aef2ed
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3900
diff
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|
2403 void java_lang_invoke_CountingMethodHandle::set_vmcount(oop mh, int count) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
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|
2404 assert(is_instance(mh), "CMH only"); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2405 mh->int_field_put(_vmcount_offset, count); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2406 } |
c26de9aef2ed
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3900
diff
changeset
|
2407 |
2357
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|
2408 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2409 return mh->obj_field(_type_offset); |
2410 } | |
2411 | |
2357
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diff
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|
2412 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2413 mh->obj_field_put(_type_offset, mtype); |
2414 } | |
2415 | |
2416 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2417 // required to carry the arguments of this MH | |
3938 | 2418 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2419 oop mtype = type(mh); |
2420 if (mtype == NULL) return 0; // Java code would get NPE | |
2357
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|
2421 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2422 if (form == NULL) return 0; // Java code would get NPE |
2357
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2356
diff
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|
2423 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2424 } |
2425 | |
2426 // fetch the low-level entry point for this mh | |
2357
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diff
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|
2427 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2428 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2429 } | |
2430 | |
2357
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diff
changeset
|
2431 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2432 assert(_vmentry_offset != 0, "must be present"); |
2433 | |
2434 // This is always the final step that initializes a valid method handle: | |
2435 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2436 | |
2437 // There should be enough memory barriers on exit from native methods | |
2438 // to ensure that the MH is fully initialized to all threads before | |
2439 // Java code can publish it in global data structures. | |
2440 // But just in case, we use release_address_field_put. | |
2441 } | |
2442 | |
2443 /// MemberName accessors | |
2444 | |
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|
2445 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2446 assert(is_instance(mname), "wrong type"); |
2447 return mname->obj_field(_clazz_offset); | |
2448 } | |
2449 | |
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|
2450 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2451 assert(is_instance(mname), "wrong type"); |
2452 mname->obj_field_put(_clazz_offset, clazz); | |
2453 } | |
2454 | |
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|
2455 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2456 assert(is_instance(mname), "wrong type"); |
2457 return mname->obj_field(_name_offset); | |
2458 } | |
2459 | |
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|
2460 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2461 assert(is_instance(mname), "wrong type"); |
2462 mname->obj_field_put(_name_offset, name); | |
2463 } | |
2464 | |
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|
2465 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2466 assert(is_instance(mname), "wrong type"); |
2467 return mname->obj_field(_type_offset); | |
2468 } | |
2469 | |
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2470 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2471 assert(is_instance(mname), "wrong type"); |
2472 mname->obj_field_put(_type_offset, type); | |
2473 } | |
2474 | |
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|
2475 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2476 assert(is_instance(mname), "wrong type"); |
2477 return mname->int_field(_flags_offset); | |
2478 } | |
2479 | |
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|
2480 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2481 assert(is_instance(mname), "wrong type"); |
2482 mname->int_field_put(_flags_offset, flags); | |
2483 } | |
2484 | |
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|
2485 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2486 assert(is_instance(mname), "wrong type"); |
2487 return mname->obj_field(_vmtarget_offset); | |
2488 } | |
2489 | |
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|
2490 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2491 assert(is_instance(mname), "wrong type"); |
2492 mname->obj_field_put(_vmtarget_offset, ref); | |
2493 } | |
2494 | |
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|
2495 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2496 assert(is_instance(mname), "wrong type"); |
2497 return mname->int_field(_vmindex_offset); | |
2498 } | |
2499 | |
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|
2500 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2501 assert(is_instance(mname), "wrong type"); |
2502 mname->int_field_put(_vmindex_offset, index); | |
2503 } | |
2504 | |
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|
2505 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2506 assert(is_instance(mh), "MH only"); |
2507 return mh->obj_field(_vmtarget_offset); | |
2508 } | |
2509 | |
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2510 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2511 assert(is_instance(mh), "MH only"); |
2512 mh->obj_field_put(_vmtarget_offset, ref); | |
2513 } | |
2514 | |
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|
2515 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2516 assert(is_instance(mh), "DMH only"); |
2517 return mh->int_field(_vmindex_offset); | |
2518 } | |
2519 | |
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2520 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2521 assert(is_instance(mh), "DMH only"); |
2522 mh->int_field_put(_vmindex_offset, index); | |
2523 } | |
2524 | |
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|
2525 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2526 assert(is_instance(mh), "BMH only"); |
2527 return mh->int_field(_vmargslot_offset); | |
2528 } | |
2529 | |
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|
2530 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2531 assert(is_instance(mh), "BMH only"); |
2532 return mh->obj_field(_argument_offset); | |
2533 } | |
2534 | |
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|
2535 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2536 assert(is_instance(mh), "AMH only"); |
2537 return mh->int_field(_conversion_offset); | |
2538 } | |
2539 | |
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|
2540 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2541 assert(is_instance(mh), "AMH only"); |
2542 mh->int_field_put(_conversion_offset, conv); | |
2543 } | |
2544 | |
2545 | |
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|
2546 // Support for java_lang_invoke_MethodType |
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|
2547 |
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|
2548 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2549 int java_lang_invoke_MethodType::_ptypes_offset; |
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|
2550 int java_lang_invoke_MethodType::_form_offset; |
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|
2551 |
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|
2552 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2553 klassOop k = SystemDictionary::MethodType_klass(); |
2554 if (k != NULL) { | |
2555 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2556 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
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2557 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2558 } |
2559 } | |
2560 | |
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|
2561 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2562 st->print("("); |
2563 objArrayOop pts = ptypes(mt); | |
2564 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2565 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2566 } | |
2567 st->print(")"); | |
2568 java_lang_Class::print_signature(rtype(mt), st); | |
2569 } | |
2570 | |
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|
2571 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2572 ResourceMark rm; |
2573 stringStream buffer(128); | |
2574 print_signature(mt, &buffer); | |
2575 const char* sigstr = buffer.base(); | |
2576 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
2577 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2578 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2579 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2580 } else { |
3582bf76420e
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diff
changeset
|
2581 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2582 } |
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diff
changeset
|
2583 return name; |
710 | 2584 } |
2585 | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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3363
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changeset
|
2586 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
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|
2587 if (rtype(mt1) != rtype(mt2)) |
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2588 return false; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2589 if (ptype_count(mt1) != ptype_count(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2590 return false; |
ddd894528dbc
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changeset
|
2591 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
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changeset
|
2592 if (ptype(mt1, i) != ptype(mt2, i)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2593 return false; |
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2594 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2595 return true; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2596 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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diff
changeset
|
2597 |
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changeset
|
2598 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2599 assert(is_instance(mt), "must be a MethodType"); |
2600 return mt->obj_field(_rtype_offset); | |
2601 } | |
2602 | |
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diff
changeset
|
2603 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2604 assert(is_instance(mt), "must be a MethodType"); |
2605 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2606 } | |
2607 | |
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diff
changeset
|
2608 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2609 assert(is_instance(mt), "must be a MethodType"); |
2610 return mt->obj_field(_form_offset); | |
2611 } | |
2612 | |
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changeset
|
2613 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2614 return ptypes(mt)->obj_at(idx); |
2615 } | |
2616 | |
2357
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diff
changeset
|
2617 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
|
2618 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
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1096
diff
changeset
|
2619 } |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
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diff
changeset
|
2620 |
710 | 2621 |
2622 | |
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changeset
|
2623 // Support for java_lang_invoke_MethodTypeForm |
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|
2624 |
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|
2625 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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diff
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|
2626 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
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|
2627 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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changeset
|
2628 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
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diff
changeset
|
2629 |
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diff
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|
2630 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2631 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2632 if (k != NULL) { | |
2633 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
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diff
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|
2634 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
2357
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|
2635 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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diff
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|
2636 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
|
2637 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
3938 | 2638 METHODTYPEFORM_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2639 } |
2640 } | |
2641 | |
2357
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diff
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|
2642 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2643 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
3363
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parents:
3272
diff
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|
2644 assert(_vmslots_offset > 0, ""); |
710 | 2645 return mtform->int_field(_vmslots_offset); |
2646 } | |
2647 | |
3363
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diff
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|
2648 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
167b70ff3abc
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diff
changeset
|
2649 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
167b70ff3abc
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diff
changeset
|
2650 assert(_vmlayout_offset > 0, ""); |
167b70ff3abc
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diff
changeset
|
2651 return mtform->obj_field(_vmlayout_offset); |
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diff
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|
2652 } |
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diff
changeset
|
2653 |
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diff
changeset
|
2654 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
167b70ff3abc
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parents:
3272
diff
changeset
|
2655 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
167b70ff3abc
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parents:
3272
diff
changeset
|
2656 oop previous = vmlayout(mtform); |
167b70ff3abc
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parents:
3272
diff
changeset
|
2657 if (previous != NULL) { |
167b70ff3abc
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parents:
3272
diff
changeset
|
2658 return previous; // someone else beat us to it |
167b70ff3abc
6939861: JVM should handle more conversion operations
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parents:
3272
diff
changeset
|
2659 } |
167b70ff3abc
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parents:
3272
diff
changeset
|
2660 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
167b70ff3abc
6939861: JVM should handle more conversion operations
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parents:
3272
diff
changeset
|
2661 OrderAccess::storestore(); // make sure our copy is fully committed |
167b70ff3abc
6939861: JVM should handle more conversion operations
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parents:
3272
diff
changeset
|
2662 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
167b70ff3abc
6939861: JVM should handle more conversion operations
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parents:
3272
diff
changeset
|
2663 if (previous != NULL) { |
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|
2664 return previous; // someone else beat us to it |
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|
2665 } |
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|
2666 return cookie; |
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|
2667 } |
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|
2668 |
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2669 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2670 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2671 return mtform->obj_field(_erasedType_offset); | |
2672 } | |
2673 | |
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2674 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
1793
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|
2675 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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2676 return mtform->obj_field(_genericInvoker_offset); |
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|
2677 } |
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|
2678 |
710 | 2679 |
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2680 // Support for java_lang_invoke_CallSite |
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2681 |
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2682 int java_lang_invoke_CallSite::_target_offset; |
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2683 |
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2684 void java_lang_invoke_CallSite::compute_offsets() { |
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2685 if (!EnableInvokeDynamic) return; |
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2686 klassOop k = SystemDictionary::CallSite_klass(); |
726
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2687 if (k != NULL) { |
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2688 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
726
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|
2689 } |
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|
2690 |
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2691 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
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2692 // (For C2: keep this until we have throttling logic for uncommon traps.) |
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2693 if (k != NULL) { |
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2694 instanceKlass* ik = instanceKlass::cast(k); |
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2695 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
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2696 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
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2697 guarantee(m_normal != NULL && m_volatile != NULL, "must exist"); |
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2698 m_normal->set_not_compilable_quietly(); |
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2699 m_volatile->set_not_compilable_quietly(); |
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2700 } |
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|
2701 } |
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|
2702 |
710 | 2703 |
0 | 2704 // Support for java_security_AccessControlContext |
2705 | |
2706 int java_security_AccessControlContext::_context_offset = 0; | |
2707 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2708 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2709 | |
2710 void java_security_AccessControlContext::compute_offsets() { | |
2711 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2712 fieldDescriptor fd; | |
2713 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2714 | |
2715 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2716 fatal("Invalid layout of java.security.AccessControlContext"); | |
2717 } | |
2718 _context_offset = fd.offset(); | |
2719 | |
2720 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2721 fatal("Invalid layout of java.security.AccessControlContext"); | |
2722 } | |
2723 _privilegedContext_offset = fd.offset(); | |
2724 | |
2725 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2726 fatal("Invalid layout of java.security.AccessControlContext"); | |
2727 } | |
2728 _isPrivileged_offset = fd.offset(); | |
2729 } | |
2730 | |
2731 | |
2732 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2733 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2734 // Ensure klass is initialized | |
2735 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2736 // Allocate result | |
2737 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2738 // Fill in values | |
2739 result->obj_field_put(_context_offset, context()); | |
2740 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2741 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2742 return result; | |
2743 } | |
2744 | |
2745 | |
2746 // Support for java_lang_ClassLoader | |
3938 | 2747 bool java_lang_ClassLoader::offsets_computed = false; |
2748 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
2749 | |
2750 void java_lang_ClassLoader::compute_offsets() { | |
2751 assert(!offsets_computed, "offsets should be initialized only once"); | |
2752 offsets_computed = true; | |
2753 | |
2754 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
2755 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
2756 compute_optional_offset(parallelCapable_offset, | |
2757 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
2758 } | |
0 | 2759 |
2760 oop java_lang_ClassLoader::parent(oop loader) { | |
2761 assert(loader->is_oop(), "loader must be oop"); | |
2762 return loader->obj_field(parent_offset); | |
2763 } | |
2764 | |
2765 | |
3938 | 2766 // For class loader classes, parallelCapable defined |
2767 // based on non-null field | |
2768 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
2769 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
2770 if (!JDK_Version::is_gte_jdk17x_version() | |
2771 || parallelCapable_offset == -1) { | |
2772 // Default for backward compatibility is false | |
2773 return false; | |
2774 } | |
2775 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
2776 } | |
2777 | |
0 | 2778 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
2779 // Fix for 4474172; see evaluation for more details | |
2780 loader = non_reflection_class_loader(loader); | |
2781 | |
2782 oop cl = SystemDictionary::java_system_loader(); | |
2783 while(cl != NULL) { | |
2784 if (cl == loader) return true; | |
2785 cl = parent(cl); | |
2786 } | |
2787 return false; | |
2788 } | |
2789 | |
2790 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2791 if (loader != NULL) { | |
2792 // See whether this is one of the class loaders associated with | |
2793 // the generated bytecodes for reflection, and if so, "magically" | |
2794 // delegate to its parent to prevent class loading from occurring | |
2795 // in places where applications using reflection didn't expect it. | |
1142 | 2796 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2797 // This might be null in non-1.4 JDKs |
2798 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2799 return parent(loader); | |
2800 } | |
2801 } | |
2802 return loader; | |
2803 } | |
2804 | |
2805 | |
2806 // Support for java_lang_System | |
2807 int java_lang_System::in_offset_in_bytes() { | |
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2357
diff
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|
2808 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2809 } |
2810 | |
2811 | |
2812 int java_lang_System::out_offset_in_bytes() { | |
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parents:
2357
diff
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|
2813 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2814 } |
2815 | |
2816 | |
2817 int java_lang_System::err_offset_in_bytes() { | |
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|
2818 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2819 } |
2820 | |
2821 | |
2822 | |
2823 int java_lang_String::value_offset; | |
2824 int java_lang_String::offset_offset; | |
2825 int java_lang_String::count_offset; | |
2826 int java_lang_String::hash_offset; | |
3938 | 2827 int java_lang_Class::_klass_offset; |
2828 int java_lang_Class::_array_klass_offset; | |
2829 int java_lang_Class::_resolved_constructor_offset; | |
2830 int java_lang_Class::_oop_size_offset; | |
2831 int java_lang_Class::_static_oop_field_count_offset; | |
0 | 2832 int java_lang_Throwable::backtrace_offset; |
2833 int java_lang_Throwable::detailMessage_offset; | |
2834 int java_lang_Throwable::cause_offset; | |
2835 int java_lang_Throwable::stackTrace_offset; | |
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diff
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|
2836 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 2837 int java_lang_reflect_AccessibleObject::override_offset; |
2838 int java_lang_reflect_Method::clazz_offset; | |
2839 int java_lang_reflect_Method::name_offset; | |
2840 int java_lang_reflect_Method::returnType_offset; | |
2841 int java_lang_reflect_Method::parameterTypes_offset; | |
2842 int java_lang_reflect_Method::exceptionTypes_offset; | |
2843 int java_lang_reflect_Method::slot_offset; | |
2844 int java_lang_reflect_Method::modifiers_offset; | |
2845 int java_lang_reflect_Method::signature_offset; | |
2846 int java_lang_reflect_Method::annotations_offset; | |
2847 int java_lang_reflect_Method::parameter_annotations_offset; | |
2848 int java_lang_reflect_Method::annotation_default_offset; | |
2849 int java_lang_reflect_Constructor::clazz_offset; | |
2850 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2851 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2852 int java_lang_reflect_Constructor::slot_offset; | |
2853 int java_lang_reflect_Constructor::modifiers_offset; | |
2854 int java_lang_reflect_Constructor::signature_offset; | |
2855 int java_lang_reflect_Constructor::annotations_offset; | |
2856 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2857 int java_lang_reflect_Field::clazz_offset; | |
2858 int java_lang_reflect_Field::name_offset; | |
2859 int java_lang_reflect_Field::type_offset; | |
2860 int java_lang_reflect_Field::slot_offset; | |
2861 int java_lang_reflect_Field::modifiers_offset; | |
2862 int java_lang_reflect_Field::signature_offset; | |
2863 int java_lang_reflect_Field::annotations_offset; | |
2864 int java_lang_boxing_object::value_offset; | |
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2865 int java_lang_boxing_object::long_value_offset; |
0 | 2866 int java_lang_ref_Reference::referent_offset; |
2867 int java_lang_ref_Reference::queue_offset; | |
2868 int java_lang_ref_Reference::next_offset; | |
2869 int java_lang_ref_Reference::discovered_offset; | |
2870 int java_lang_ref_Reference::static_lock_offset; | |
2871 int java_lang_ref_Reference::static_pending_offset; | |
2872 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2873 int java_lang_ref_SoftReference::timestamp_offset; | |
2874 int java_lang_ref_SoftReference::static_clock_offset; | |
2875 int java_lang_ClassLoader::parent_offset; | |
2876 int java_lang_System::static_in_offset; | |
2877 int java_lang_System::static_out_offset; | |
2878 int java_lang_System::static_err_offset; | |
2879 int java_lang_StackTraceElement::declaringClass_offset; | |
2880 int java_lang_StackTraceElement::methodName_offset; | |
2881 int java_lang_StackTraceElement::fileName_offset; | |
2882 int java_lang_StackTraceElement::lineNumber_offset; | |
2883 int java_lang_AssertionStatusDirectives::classes_offset; | |
2884 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2885 int java_lang_AssertionStatusDirectives::packages_offset; | |
2886 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2887 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2888 int java_nio_Buffer::_limit_offset; | |
2889 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2890 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2891 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2892 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2893 | |
2894 | |
2895 // Support for java_lang_StackTraceElement | |
2896 | |
2897 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2898 element->obj_field_put(fileName_offset, value); | |
2899 } | |
2900 | |
2901 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2902 element->obj_field_put(declaringClass_offset, value); | |
2903 } | |
2904 | |
2905 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2906 element->obj_field_put(methodName_offset, value); | |
2907 } | |
2908 | |
2909 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2910 element->int_field_put(lineNumber_offset, value); | |
2911 } | |
2912 | |
2913 | |
2914 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2915 | |
2916 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2917 o->obj_field_put(classes_offset, val); | |
2918 } | |
2919 | |
2920 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2921 o->obj_field_put(classEnabled_offset, val); | |
2922 } | |
2923 | |
2924 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2925 o->obj_field_put(packages_offset, val); | |
2926 } | |
2927 | |
2928 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2929 o->obj_field_put(packageEnabled_offset, val); | |
2930 } | |
2931 | |
2932 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2933 o->bool_field_put(deflt_offset, val); | |
2934 } | |
2935 | |
2936 | |
2937 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2938 int java_nio_Buffer::limit_offset() { | |
2939 return _limit_offset; | |
2940 } | |
2941 | |
2942 | |
2943 void java_nio_Buffer::compute_offsets() { | |
3938 | 2944 klassOop k = SystemDictionary::nio_Buffer_klass(); |
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2945 assert(k != NULL, "must be loaded in 1.4+"); |
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|
2946 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2947 } |
2948 | |
2949 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2950 int sun_misc_AtomicLongCSImpl::value_offset() { | |
3938 | 2951 assert(SystemDictionary::AtomicLongCSImpl_klass() != NULL, "can't call this"); |
0 | 2952 return _value_offset; |
2953 } | |
2954 | |
2955 | |
2956 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
3938 | 2957 klassOop k = SystemDictionary::AtomicLongCSImpl_klass(); |
0 | 2958 // If this class is not present, its value field offset won't be referenced. |
2959 if (k != NULL) { | |
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|
2960 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2961 } |
2962 } | |
2963 | |
2964 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2965 if (_owner_offset != 0) return; | |
2966 | |
2967 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2968 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2969 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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2970 compute_offset(_owner_offset, k, |
0 | 2971 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2972 } | |
2973 | |
2974 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2975 assert(_owner_offset != 0, "Must be initialized"); | |
2976 return obj->obj_field(_owner_offset); | |
2977 } | |
2978 | |
2979 // Compute hard-coded offsets | |
2980 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2981 // are not available to determine the offset_of_static_fields. | |
2982 void JavaClasses::compute_hard_coded_offsets() { | |
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ba764ed4b6f2
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98
diff
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|
2983 const int x = heapOopSize; |
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2984 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2985 |
2986 // Do the String Class | |
2987 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2988 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2989 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2990 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2991 | |
2992 // Throwable Class | |
2993 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2994 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2995 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2996 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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|
2997 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 2998 |
2999 // java_lang_boxing_object | |
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3000 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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|
3001 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3002 |
3003 // java_lang_ref_Reference: | |
3004 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3005 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3006 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3007 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3008 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3009 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3010 // Artificial fields for java_lang_ref_Reference | |
3011 // The first field is for the discovered field added in 1.4 | |
3012 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3013 | |
3014 // java_lang_ref_SoftReference Class | |
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3015 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3016 // Don't multiply static fields because they are always in wordSize units |
3017 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3018 | |
3019 // java_lang_ClassLoader | |
3020 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3021 | |
3022 // java_lang_System | |
3023 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3024 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3025 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
3026 | |
3027 // java_lang_StackTraceElement | |
3028 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3029 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3030 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3031 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3032 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3033 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3034 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3035 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3036 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3037 | |
3038 } | |
3039 | |
3040 | |
3041 // Compute non-hard-coded field offsets of all the classes in this file | |
3042 void JavaClasses::compute_offsets() { | |
3938 | 3043 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3044 java_lang_ClassLoader::compute_offsets(); | |
0 | 3045 java_lang_Thread::compute_offsets(); |
3046 java_lang_ThreadGroup::compute_offsets(); | |
2416
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6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
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|
3047 if (EnableInvokeDynamic) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
3048 java_lang_invoke_MethodHandle::compute_offsets(); |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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|
3049 java_lang_invoke_MemberName::compute_offsets(); |
8033953d67ff
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|
3050 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
3051 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
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|
3052 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
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|
3053 java_lang_invoke_MethodType::compute_offsets(); |
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|
3054 java_lang_invoke_MethodTypeForm::compute_offsets(); |
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|
3055 java_lang_invoke_CallSite::compute_offsets(); |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
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3900
diff
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|
3056 java_lang_invoke_CountingMethodHandle::compute_offsets(); |
726
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|
3057 } |
0 | 3058 java_security_AccessControlContext::compute_offsets(); |
3059 // Initialize reflection classes. The layouts of these classes | |
3060 // changed with the new reflection implementation in JDK 1.4, and | |
3061 // since the Universe doesn't know what JDK version it is until this | |
3062 // point we defer computation of these offsets until now. | |
3063 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3064 java_lang_reflect_Method::compute_offsets(); | |
3065 java_lang_reflect_Constructor::compute_offsets(); | |
3066 java_lang_reflect_Field::compute_offsets(); | |
3067 if (JDK_Version::is_gte_jdk14x_version()) { | |
3068 java_nio_Buffer::compute_offsets(); | |
3069 } | |
3070 if (JDK_Version::is_gte_jdk15x_version()) { | |
3071 sun_reflect_ConstantPool::compute_offsets(); | |
3072 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3073 } | |
3074 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 3075 |
3076 // generated interpreter code wants to know about the offsets we just computed: | |
3077 AbstractAssembler::update_delayed_values(); | |
0 | 3078 } |
3079 | |
3080 #ifndef PRODUCT | |
3081 | |
3082 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3083 // against changes in the class files | |
3084 | |
3085 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3086 EXCEPTION_MARK; | |
3087 fieldDescriptor fd; | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3088 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3089 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3090 instanceKlassHandle h_klass (THREAD, k); | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
3091 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3092 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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coleenp
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diff
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|
3093 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3094 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3095 return false; | |
3096 } | |
3097 if (fd.is_static()) { | |
3098 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3099 return false; | |
3100 } | |
3101 if (fd.offset() == hardcoded_offset ) { | |
3102 return true; | |
3103 } else { | |
3104 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3105 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3106 return false; | |
3107 } | |
3108 } | |
3109 | |
3110 | |
3111 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3112 EXCEPTION_MARK; | |
3113 fieldDescriptor fd; | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3114 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3115 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3116 instanceKlassHandle h_klass (THREAD, k); | |
2177
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diff
changeset
|
3117 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
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diff
changeset
|
3118 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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diff
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|
3119 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3120 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3121 return false; | |
3122 } | |
3123 if (!fd.is_static()) { | |
3124 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3125 return false; | |
3126 } | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
3127 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
0 | 3128 return true; |
3129 } else { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
3130 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 | 3131 return false; |
3132 } | |
3133 } | |
3134 | |
3135 | |
132
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|
3136 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
60b728ec77c1
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|
3137 EXCEPTION_MARK; |
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|
3138 fieldDescriptor fd; |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3139 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
132
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|
3140 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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3141 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3142 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
|
3143 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
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|
3144 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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|
3145 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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diff
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|
3146 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
changeset
|
3147 } |
60b728ec77c1
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diff
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|
3148 if (!fd.is_static() || !fd.has_initial_value()) { |
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diff
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|
3149 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
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diff
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|
3150 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3151 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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diff
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|
3152 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
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jrose
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diff
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|
3153 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
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|
3154 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
3155 } |
60b728ec77c1
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jrose
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diff
changeset
|
3156 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3157 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3158 return true; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3159 } else { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3160 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
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diff
changeset
|
3161 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3162 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3163 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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|
3164 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
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|
3165 |
0 | 3166 // Check the hard-coded field offsets of all the classes in this file |
3167 | |
3168 void JavaClasses::check_offsets() { | |
3169 bool valid = true; | |
3170 | |
3171 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3172 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3173 | |
165
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3174 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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|
3175 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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|
3176 |
0 | 3177 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3178 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3179 | |
132
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|
3180 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
60b728ec77c1
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|
3181 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
60b728ec77c1
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|
3182 |
0 | 3183 // java.lang.String |
3184 | |
3185 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3186 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3187 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3188 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3189 | |
3190 // java.lang.Class | |
3191 | |
3192 // Fake fields | |
3193 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3194 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3195 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3196 | |
3197 // java.lang.Throwable | |
3198 | |
3199 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3200 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3201 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3202 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3203 | |
3204 // Boxed primitive objects (java_lang_boxing_object) | |
3205 | |
3206 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3207 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3208 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
165
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|
3209 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3210 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3211 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3212 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
165
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3213 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3214 |
3215 // java.lang.ClassLoader | |
3216 | |
3217 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3218 | |
3219 // java.lang.System | |
3220 | |
3221 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3222 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3223 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3224 | |
3225 // java.lang.StackTraceElement | |
3226 | |
3227 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3228 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3229 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3230 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3231 | |
3232 // java.lang.ref.Reference | |
3233 | |
3234 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3235 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3236 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3237 // Fake field | |
3238 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3239 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3240 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3241 | |
3242 // java.lang.ref.SoftReference | |
3243 | |
3244 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3245 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3246 | |
3247 // java.lang.AssertionStatusDirectives | |
3248 // | |
3249 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3250 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3251 // into merlin "for some time." Without it, the vm will fail with early | |
3252 // merlin builds. | |
3253 | |
3254 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3255 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3256 const char* sig = "[Ljava/lang/String;"; | |
3257 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3258 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3259 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3260 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3261 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3262 } | |
3263 | |
3264 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3265 } | |
3266 | |
3267 #endif // PRODUCT | |
3268 | |
3938 | 3269 int InjectedField::compute_offset() { |
3270 klassOop klass_oop = klass(); | |
3271 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
3272 if (!may_be_java && !fs.access_flags().is_internal()) { | |
3273 // Only look at injected fields | |
3274 continue; | |
3275 } | |
3276 if (fs.name() == name() && fs.signature() == signature()) { | |
3277 return fs.offset(); | |
3278 } | |
3279 } | |
3280 ResourceMark rm; | |
3281 tty->print_cr("Invalid layout of %s at %s", instanceKlass::cast(klass_oop)->external_name(), name()->as_C_string()); | |
3282 fatal("Invalid layout of preloaded class"); | |
3283 return -1; | |
3284 } | |
3285 | |
0 | 3286 void javaClasses_init() { |
3287 JavaClasses::compute_offsets(); | |
3288 JavaClasses::check_offsets(); | |
3289 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3290 } |