Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 6057:8f972594effc
6924259: Remove String.count/String.offset
Summary: Allow a version of String class that doesn't have count and offset fields.
Reviewed-by: never, coleenp
author | kvn |
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date | Mon, 14 May 2012 09:36:00 -0700 |
parents | a81f60ddab06 |
children | 8b0a4867acf0 e9140bf80b4a |
rev | line source |
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0 | 1 /* |
6057 | 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "code/debugInfo.hpp" | |
30 #include "code/pcDesc.hpp" | |
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31 #include "compiler/compilerOracle.hpp" |
1972 | 32 #include "interpreter/interpreter.hpp" |
33 #include "memory/oopFactory.hpp" | |
34 #include "memory/resourceArea.hpp" | |
35 #include "memory/universe.inline.hpp" | |
3938 | 36 #include "oops/fieldStreams.hpp" |
1972 | 37 #include "oops/instanceKlass.hpp" |
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38 #include "oops/instanceMirrorKlass.hpp" |
1972 | 39 #include "oops/klass.hpp" |
40 #include "oops/klassOop.hpp" | |
41 #include "oops/methodOop.hpp" | |
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42 #include "oops/symbol.hpp" |
1972 | 43 #include "oops/typeArrayOop.hpp" |
44 #include "runtime/fieldDescriptor.hpp" | |
45 #include "runtime/handles.inline.hpp" | |
46 #include "runtime/interfaceSupport.hpp" | |
47 #include "runtime/java.hpp" | |
48 #include "runtime/javaCalls.hpp" | |
49 #include "runtime/safepoint.hpp" | |
50 #include "runtime/vframe.hpp" | |
51 #include "utilities/preserveException.hpp" | |
52 #ifdef TARGET_OS_FAMILY_linux | |
53 # include "thread_linux.inline.hpp" | |
54 #endif | |
55 #ifdef TARGET_OS_FAMILY_solaris | |
56 # include "thread_solaris.inline.hpp" | |
57 #endif | |
58 #ifdef TARGET_OS_FAMILY_windows | |
59 # include "thread_windows.inline.hpp" | |
60 #endif | |
3960 | 61 #ifdef TARGET_OS_FAMILY_bsd |
62 # include "thread_bsd.inline.hpp" | |
63 #endif | |
0 | 64 |
3938 | 65 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
66 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
67 | |
68 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
69 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
70 | |
71 InjectedField JavaClasses::_injected_fields[] = { | |
72 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
73 }; | |
74 | |
75 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
76 return _injected_fields[id].compute_offset(); | |
77 } | |
78 | |
79 | |
80 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
81 *field_count = 0; | |
82 | |
83 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
84 if (sid == vmSymbols::NO_SID) { | |
85 // Only well known classes can inject fields | |
86 return NULL; | |
87 } | |
88 | |
89 int count = 0; | |
90 int start = -1; | |
91 | |
92 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
93 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
94 count++; \ | |
95 if (start == -1) start = klass##_##name##_enum; \ | |
96 } | |
97 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
98 #undef LOOKUP_INJECTED_FIELD | |
99 | |
100 if (start != -1) { | |
101 *field_count = count; | |
102 return _injected_fields + start; | |
103 } | |
104 return NULL; | |
105 } | |
106 | |
107 | |
710 | 108 static bool find_field(instanceKlass* ik, |
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109 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 110 fieldDescriptor* fd, |
111 bool allow_super = false) { | |
112 if (allow_super) | |
113 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
114 else | |
115 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
116 } | |
117 | |
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118 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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119 static void |
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120 compute_offset(int &dest_offset, |
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121 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 122 bool allow_super = false) { |
132
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123 fieldDescriptor fd; |
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124 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 125 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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126 ResourceMark rm; |
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127 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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128 fatal("Invalid layout of preloaded class"); |
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129 } |
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130 dest_offset = fd.offset(); |
0 | 131 } |
132 | |
133 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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134 static void |
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135 compute_optional_offset(int& dest_offset, |
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136 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 137 bool allow_super = false) { |
132
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138 fieldDescriptor fd; |
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139 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 140 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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141 dest_offset = fd.offset(); |
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142 } |
0 | 143 } |
144 | |
710 | 145 |
6057 | 146 int java_lang_String::value_offset = 0; |
147 int java_lang_String::offset_offset = 0; | |
148 int java_lang_String::count_offset = 0; | |
149 int java_lang_String::hash_offset = 0; | |
150 | |
151 bool java_lang_String::initialized = false; | |
152 | |
153 void java_lang_String::compute_offsets() { | |
154 assert(!initialized, "offsets should be initialized only once"); | |
155 | |
156 klassOop k = SystemDictionary::String_klass(); | |
157 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); | |
158 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
159 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
160 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
161 | |
162 initialized = true; | |
163 } | |
164 | |
0 | 165 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
6057 | 166 assert(initialized, "Must be initialized"); |
0 | 167 // Create the String object first, so there's a chance that the String |
168 // and the char array it points to end up in the same cache line. | |
169 oop obj; | |
170 if (tenured) { | |
1142 | 171 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 172 } else { |
1142 | 173 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 174 } |
175 | |
176 // Create the char array. The String object must be handlized here | |
177 // because GC can happen as a result of the allocation attempt. | |
178 Handle h_obj(THREAD, obj); | |
179 typeArrayOop buffer; | |
180 if (tenured) { | |
181 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
182 } else { | |
183 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
184 } | |
185 | |
186 // Point the String at the char array | |
187 obj = h_obj(); | |
188 set_value(obj, buffer); | |
189 // No need to zero the offset, allocation zero'ed the entire String object | |
190 assert(offset(obj) == 0, "initial String offset should be zero"); | |
191 //set_offset(obj, 0); | |
192 set_count(obj, length); | |
193 | |
194 return h_obj; | |
195 } | |
196 | |
197 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
198 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
199 typeArrayOop buffer = value(h_obj()); | |
200 for (int index = 0; index < length; index++) { | |
201 buffer->char_at_put(index, unicode[index]); | |
202 } | |
203 return h_obj; | |
204 } | |
205 | |
206 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
207 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
208 } | |
209 | |
210 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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211 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
0 | 212 } |
213 | |
214 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
215 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
216 return h_obj(); | |
217 } | |
218 | |
219 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
220 if (utf8_str == NULL) { | |
221 return Handle(); | |
222 } | |
223 int length = UTF8::unicode_length(utf8_str); | |
224 Handle h_obj = basic_create(length, false, CHECK_NH); | |
225 if (length > 0) { | |
226 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
227 } | |
228 return h_obj; | |
229 } | |
230 | |
231 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
232 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
233 return h_obj(); | |
234 } | |
235 | |
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236 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 237 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
238 Handle h_obj = basic_create(length, false, CHECK_NH); | |
239 if (length > 0) { | |
240 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
241 } | |
242 return h_obj; | |
243 } | |
244 | |
245 // Converts a C string to a Java String based on current encoding | |
246 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
247 assert(str != NULL, "bad arguments"); | |
248 | |
249 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
250 static to_java_string_fn_t _to_java_string_fn = NULL; | |
251 | |
252 if (_to_java_string_fn == NULL) { | |
253 void *lib_handle = os::native_java_library(); | |
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254 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 255 if (_to_java_string_fn == NULL) { |
256 fatal("NewStringPlatform missing"); | |
257 } | |
258 } | |
259 | |
260 jstring js = NULL; | |
261 { JavaThread* thread = (JavaThread*)THREAD; | |
262 assert(thread->is_Java_thread(), "must be java thread"); | |
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263 HandleMark hm(thread); |
0 | 264 ThreadToNativeFromVM ttn(thread); |
265 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
266 } | |
267 return Handle(THREAD, JNIHandles::resolve(js)); | |
268 } | |
269 | |
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270 // Converts a Java String to a native C string that can be used for |
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271 // native OS calls. |
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272 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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273 |
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274 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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275 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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276 |
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277 if (_to_platform_string_fn == NULL) { |
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278 void *lib_handle = os::native_java_library(); |
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279 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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280 if (_to_platform_string_fn == NULL) { |
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281 fatal("GetStringPlatformChars missing"); |
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282 } |
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283 } |
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284 |
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285 char *native_platform_string; |
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286 { JavaThread* thread = (JavaThread*)THREAD; |
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287 assert(thread->is_Java_thread(), "must be java thread"); |
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288 JNIEnv *env = thread->jni_environment(); |
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289 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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290 bool is_copy; |
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291 HandleMark hm(thread); |
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292 ThreadToNativeFromVM ttn(thread); |
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293 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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294 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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295 JNIHandles::destroy_local(js); |
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296 } |
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297 return native_platform_string; |
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298 } |
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299 |
0 | 300 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
301 oop obj = java_string(); | |
302 // Typical usage is to convert all '/' to '.' in string. | |
303 typeArrayOop value = java_lang_String::value(obj); | |
304 int offset = java_lang_String::offset(obj); | |
305 int length = java_lang_String::length(obj); | |
306 | |
307 // First check if any from_char exist | |
308 int index; // Declared outside, used later | |
309 for (index = 0; index < length; index++) { | |
310 if (value->char_at(index + offset) == from_char) { | |
311 break; | |
312 } | |
313 } | |
314 if (index == length) { | |
315 // No from_char, so do not copy. | |
316 return java_string; | |
317 } | |
318 | |
319 // Create new UNICODE buffer. Must handlize value because GC | |
320 // may happen during String and char array creation. | |
321 typeArrayHandle h_value(THREAD, value); | |
322 Handle string = basic_create(length, false, CHECK_NH); | |
323 | |
324 typeArrayOop from_buffer = h_value(); | |
325 typeArrayOop to_buffer = java_lang_String::value(string()); | |
326 | |
327 // Copy contents | |
328 for (index = 0; index < length; index++) { | |
329 jchar c = from_buffer->char_at(index + offset); | |
330 if (c == from_char) { | |
331 c = to_char; | |
332 } | |
333 to_buffer->char_at_put(index, c); | |
334 } | |
335 return string; | |
336 } | |
337 | |
338 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
339 typeArrayOop value = java_lang_String::value(java_string); | |
340 int offset = java_lang_String::offset(java_string); | |
341 length = java_lang_String::length(java_string); | |
342 | |
343 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
344 for (int index = 0; index < length; index++) { | |
345 result[index] = value->char_at(index + offset); | |
346 } | |
347 return result; | |
348 } | |
349 | |
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350 unsigned int java_lang_String::hash_string(oop java_string) { |
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351 typeArrayOop value = java_lang_String::value(java_string); |
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352 int offset = java_lang_String::offset(java_string); |
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353 int length = java_lang_String::length(java_string); |
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354 |
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355 if (length == 0) return 0; |
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356 return hash_string(value->char_at_addr(offset), length); |
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357 } |
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358 |
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359 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 360 oop obj = java_string(); |
361 typeArrayOop value = java_lang_String::value(obj); | |
362 int offset = java_lang_String::offset(obj); | |
363 int length = java_lang_String::length(obj); | |
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364 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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365 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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366 return sym; |
0 | 367 } |
368 | |
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369 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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370 typeArrayOop value = java_lang_String::value(java_string); |
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371 int offset = java_lang_String::offset(java_string); |
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372 int length = java_lang_String::length(java_string); |
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373 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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374 return SymbolTable::probe_unicode(base, length); |
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375 } |
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376 |
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377 |
0 | 378 int java_lang_String::utf8_length(oop java_string) { |
379 typeArrayOop value = java_lang_String::value(java_string); | |
380 int offset = java_lang_String::offset(java_string); | |
381 int length = java_lang_String::length(java_string); | |
382 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
383 return UNICODE::utf8_length(position, length); | |
384 } | |
385 | |
386 char* java_lang_String::as_utf8_string(oop java_string) { | |
387 typeArrayOop value = java_lang_String::value(java_string); | |
388 int offset = java_lang_String::offset(java_string); | |
389 int length = java_lang_String::length(java_string); | |
390 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
391 return UNICODE::as_utf8(position, length); | |
392 } | |
393 | |
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394 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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395 typeArrayOop value = java_lang_String::value(java_string); |
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396 int offset = java_lang_String::offset(java_string); |
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397 int length = java_lang_String::length(java_string); |
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398 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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399 return UNICODE::as_utf8(position, length, buf, buflen); |
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400 } |
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401 |
0 | 402 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
403 typeArrayOop value = java_lang_String::value(java_string); | |
404 int offset = java_lang_String::offset(java_string); | |
405 int length = java_lang_String::length(java_string); | |
406 assert(start + len <= length, "just checking"); | |
407 jchar* position = value->char_at_addr(offset + start); | |
408 return UNICODE::as_utf8(position, len); | |
409 } | |
410 | |
411 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
412 assert(SharedSkipVerify || | |
1142 | 413 java_string->klass() == SystemDictionary::String_klass(), |
0 | 414 "must be java_string"); |
415 typeArrayOop value = java_lang_String::value(java_string); | |
416 int offset = java_lang_String::offset(java_string); | |
417 int length = java_lang_String::length(java_string); | |
418 if (length != len) { | |
419 return false; | |
420 } | |
421 for (int i = 0; i < len; i++) { | |
422 if (value->char_at(i + offset) != chars[i]) { | |
423 return false; | |
424 } | |
425 } | |
426 return true; | |
427 } | |
428 | |
429 void java_lang_String::print(Handle java_string, outputStream* st) { | |
430 oop obj = java_string(); | |
1142 | 431 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 432 typeArrayOop value = java_lang_String::value(obj); |
433 int offset = java_lang_String::offset(obj); | |
434 int length = java_lang_String::length(obj); | |
435 | |
436 int end = MIN2(length, 100); | |
437 if (value == NULL) { | |
438 // This can happen if, e.g., printing a String | |
439 // object before its initializer has been called | |
440 st->print_cr("NULL"); | |
441 } else { | |
442 st->print("\""); | |
443 for (int index = 0; index < length; index++) { | |
444 st->print("%c", value->char_at(index + offset)); | |
445 } | |
446 st->print("\""); | |
447 } | |
448 } | |
449 | |
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450 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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451 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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452 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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453 if (fd->has_initial_value()) { |
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454 BasicType t = fd->field_type(); |
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455 switch (t) { |
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456 case T_BYTE: |
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457 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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458 break; |
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459 case T_BOOLEAN: |
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460 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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461 break; |
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462 case T_CHAR: |
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463 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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464 break; |
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465 case T_SHORT: |
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466 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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467 break; |
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468 case T_INT: |
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469 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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470 break; |
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471 case T_FLOAT: |
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472 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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473 break; |
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474 case T_DOUBLE: |
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475 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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476 break; |
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477 case T_LONG: |
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478 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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479 break; |
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480 case T_OBJECT: |
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481 { |
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482 #ifdef ASSERT |
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483 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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484 assert(fd->signature() == sym, "just checking"); |
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485 #endif |
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486 oop string = fd->string_initial_value(CHECK); |
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487 mirror()->obj_field_put(fd->offset(), string); |
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488 } |
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489 break; |
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490 default: |
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491 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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492 "Illegal ConstantValue attribute in class file"); |
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493 } |
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494 } |
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495 } |
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496 |
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497 |
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498 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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499 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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500 |
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501 if (k->oop_is_instance()) { |
3938 | 502 // During bootstrap, java.lang.Class wasn't loaded so static field |
503 // offsets were computed without the size added it. Go back and | |
504 // update all the static field offsets to included the size. | |
505 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
506 if (fs.access_flags().is_static()) { | |
507 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
508 fs.set_offset(real_offset); | |
509 } | |
510 } | |
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511 } |
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512 create_mirror(k, CHECK); |
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513 } |
0 | 514 |
515 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
516 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
517 // Use this moment of initialization to cache modifier_flags also, | |
518 // to support Class.getModifiers(). Instance classes recalculate | |
519 // the cached flags after the class file is parsed, but before the | |
520 // class is put into the system dictionary. | |
521 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
522 k->set_modifier_flags(computed_modifiers); | |
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523 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
0 | 524 // Allocate mirror (java.lang.Class instance) |
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525 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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526 |
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527 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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528 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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529 |
0 | 530 // It might also have a component mirror. This mirror must already exist. |
531 if (k->oop_is_javaArray()) { | |
532 Handle comp_mirror; | |
533 if (k->oop_is_typeArray()) { | |
534 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
535 comp_mirror = Universe::java_mirror(type); | |
536 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
537 } else if (k->oop_is_objArray()) { | |
538 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
539 if (element_klass != NULL | |
540 && (Klass::cast(element_klass)->oop_is_instance() || | |
541 Klass::cast(element_klass)->oop_is_javaArray())) { | |
542 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
543 assert(comp_mirror.not_null(), "must have element mirror"); | |
544 } | |
545 // else some object array internal to the VM, like systemObjArrayKlassObj | |
546 } | |
547 if (comp_mirror.not_null()) { | |
548 // Two-way link between the array klass and its component mirror: | |
549 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
550 set_array_klass(comp_mirror(), k->as_klassOop()); | |
551 } | |
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552 } else if (k->oop_is_instance()) { |
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553 // Initialize static fields |
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554 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 555 } |
556 return mirror(); | |
557 } else { | |
558 return NULL; | |
559 } | |
560 } | |
561 | |
562 | |
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563 |
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564 int java_lang_Class::oop_size(oop java_class) { |
3938 | 565 assert(_oop_size_offset != 0, "must be set"); |
566 return java_class->int_field(_oop_size_offset); | |
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567 } |
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568 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 569 assert(_oop_size_offset != 0, "must be set"); |
570 java_class->int_field_put(_oop_size_offset, size); | |
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571 } |
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572 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 573 assert(_static_oop_field_count_offset != 0, "must be set"); |
574 return java_class->int_field(_static_oop_field_count_offset); | |
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575 } |
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576 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 577 assert(_static_oop_field_count_offset != 0, "must be set"); |
578 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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579 } |
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580 |
0 | 581 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
582 // This should be improved by adding a field at the Java level or by | |
583 // introducing a new VM klass (see comment in ClassFileParser) | |
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584 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
0 | 585 if (type != T_VOID) { |
586 klassOop aklass = Universe::typeArrayKlassObj(type); | |
587 assert(aklass != NULL, "correct bootstrap"); | |
588 set_array_klass(java_class, aklass); | |
589 } | |
4009 | 590 #ifdef ASSERT |
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591 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 592 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
593 #endif | |
0 | 594 return java_class; |
595 } | |
596 | |
597 | |
598 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
599 //%note memory_2 | |
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600 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
3938 | 601 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
0 | 602 assert(k == NULL || k->is_klass(), "type check"); |
603 return k; | |
604 } | |
605 | |
606 | |
4009 | 607 void java_lang_Class::set_klass(oop java_class, klassOop klass) { |
608 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); | |
609 java_class->obj_field_put(_klass_offset, klass); | |
610 } | |
611 | |
612 | |
665
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613 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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614 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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615 Symbol* name = NULL; |
665
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616 bool is_instance = false; |
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617 if (is_primitive(java_class)) { |
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618 name = vmSymbols::type_signature(primitive_type(java_class)); |
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619 } else { |
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620 klassOop k = as_klassOop(java_class); |
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621 is_instance = Klass::cast(k)->oop_is_instance(); |
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622 name = Klass::cast(k)->name(); |
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623 } |
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624 if (name == NULL) { |
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625 st->print("<null>"); |
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626 return; |
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627 } |
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628 if (is_instance) st->print("L"); |
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629 st->write((char*) name->base(), (int) name->utf8_length()); |
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630 if (is_instance) st->print(";"); |
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631 } |
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632 |
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633 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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634 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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635 Symbol* name; |
665
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636 if (is_primitive(java_class)) { |
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637 name = vmSymbols::type_signature(primitive_type(java_class)); |
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638 // Because this can create a new symbol, the caller has to decrement |
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639 // the refcount, so make adjustment here and below for symbols returned |
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640 // that are not created or incremented due to a successful lookup. |
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641 name->increment_refcount(); |
665
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642 } else { |
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643 klassOop k = as_klassOop(java_class); |
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644 if (!Klass::cast(k)->oop_is_instance()) { |
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645 name = Klass::cast(k)->name(); |
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646 name->increment_refcount(); |
665
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647 } else { |
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648 ResourceMark rm; |
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649 const char* sigstr = Klass::cast(k)->signature_name(); |
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650 int siglen = (int) strlen(sigstr); |
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651 if (!intern_if_not_found) { |
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652 name = SymbolTable::probe(sigstr, siglen); |
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653 } else { |
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654 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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655 } |
665
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656 } |
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657 } |
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658 return name; |
665
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659 } |
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660 |
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661 |
0 | 662 klassOop java_lang_Class::array_klass(oop java_class) { |
3938 | 663 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 664 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
665 return k; | |
666 } | |
667 | |
668 | |
669 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
670 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
3938 | 671 java_class->obj_field_put(_array_klass_offset, klass); |
0 | 672 } |
673 | |
674 | |
675 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
3938 | 676 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
0 | 677 assert(constructor == NULL || constructor->is_method(), "should be method"); |
678 return methodOop(constructor); | |
679 } | |
680 | |
681 | |
682 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
683 assert(constructor->is_method(), "should be method"); | |
3938 | 684 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
0 | 685 } |
686 | |
687 | |
688 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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689 // should assert: |
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690 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
3938 | 691 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
0 | 692 return k == NULL; |
693 } | |
694 | |
695 | |
696 BasicType java_lang_Class::primitive_type(oop java_class) { | |
697 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
3938 | 698 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 699 BasicType type = T_VOID; |
700 if (ak != NULL) { | |
701 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
702 type = arrayKlass::cast(ak)->element_type(); | |
703 } else { | |
704 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
705 } | |
706 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
707 return type; | |
708 } | |
709 | |
665
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710 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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711 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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712 if (is_primitive(java_class)) { |
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713 if (reference_klass != NULL) |
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714 (*reference_klass) = NULL; |
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715 return primitive_type(java_class); |
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716 } else { |
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717 if (reference_klass != NULL) |
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718 (*reference_klass) = as_klassOop(java_class); |
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719 return T_OBJECT; |
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720 } |
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721 } |
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722 |
0 | 723 |
724 oop java_lang_Class::primitive_mirror(BasicType t) { | |
725 oop mirror = Universe::java_mirror(t); | |
1142 | 726 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 727 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
728 return mirror; | |
729 } | |
730 | |
731 bool java_lang_Class::offsets_computed = false; | |
732 int java_lang_Class::classRedefinedCount_offset = -1; | |
733 | |
734 void java_lang_Class::compute_offsets() { | |
735 assert(!offsets_computed, "offsets should be initialized only once"); | |
736 offsets_computed = true; | |
737 | |
3938 | 738 klassOop klass_oop = SystemDictionary::Class_klass(); |
0 | 739 // The classRedefinedCount field is only present starting in 1.5, |
740 // so don't go fatal. | |
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741 compute_optional_offset(classRedefinedCount_offset, |
3938 | 742 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
743 | |
744 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 745 } |
746 | |
747 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
748 if (!JDK_Version::is_gte_jdk15x_version() | |
749 || classRedefinedCount_offset == -1) { | |
750 // The classRedefinedCount field is only present starting in 1.5. | |
751 // If we don't have an offset for it then just return -1 as a marker. | |
752 return -1; | |
753 } | |
754 | |
755 return the_class_mirror->int_field(classRedefinedCount_offset); | |
756 } | |
757 | |
758 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
759 if (!JDK_Version::is_gte_jdk15x_version() | |
760 || classRedefinedCount_offset == -1) { | |
761 // The classRedefinedCount field is only present starting in 1.5. | |
762 // If we don't have an offset for it then nothing to set. | |
763 return; | |
764 } | |
765 | |
766 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
767 } | |
768 | |
769 | |
770 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
771 // platform thread structure, and a eetop offset which was used for thread | |
772 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
773 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
774 // instead of the privateInfo_offset. | |
775 // | |
776 // Note: The stackSize field is only present starting in 1.4. | |
777 | |
778 int java_lang_Thread::_name_offset = 0; | |
779 int java_lang_Thread::_group_offset = 0; | |
780 int java_lang_Thread::_contextClassLoader_offset = 0; | |
781 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
782 int java_lang_Thread::_priority_offset = 0; | |
783 int java_lang_Thread::_eetop_offset = 0; | |
784 int java_lang_Thread::_daemon_offset = 0; | |
785 int java_lang_Thread::_stillborn_offset = 0; | |
786 int java_lang_Thread::_stackSize_offset = 0; | |
787 int java_lang_Thread::_tid_offset = 0; | |
788 int java_lang_Thread::_thread_status_offset = 0; | |
789 int java_lang_Thread::_park_blocker_offset = 0; | |
790 int java_lang_Thread::_park_event_offset = 0 ; | |
791 | |
792 | |
793 void java_lang_Thread::compute_offsets() { | |
794 assert(_group_offset == 0, "offsets should be initialized only once"); | |
795 | |
1142 | 796 klassOop k = SystemDictionary::Thread_klass(); |
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797 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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798 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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799 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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800 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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801 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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802 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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803 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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804 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 805 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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806 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 807 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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808 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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809 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 810 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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811 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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812 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 813 vmSymbols::long_signature()); |
814 } | |
815 | |
816 | |
817 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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818 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 819 } |
820 | |
821 | |
822 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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823 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 824 } |
825 | |
826 | |
827 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
828 oop name = java_thread->obj_field(_name_offset); | |
829 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
830 return typeArrayOop(name); | |
831 } | |
832 | |
833 | |
834 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
835 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
836 java_thread->obj_field_put(_name_offset, name); | |
837 } | |
838 | |
839 | |
840 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
841 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
842 } | |
843 | |
844 | |
845 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
846 java_thread->int_field_put(_priority_offset, priority); | |
847 } | |
848 | |
849 | |
850 oop java_lang_Thread::threadGroup(oop java_thread) { | |
851 return java_thread->obj_field(_group_offset); | |
852 } | |
853 | |
854 | |
855 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
856 return java_thread->bool_field(_stillborn_offset) != 0; | |
857 } | |
858 | |
859 | |
860 // We never have reason to turn the stillborn bit off | |
861 void java_lang_Thread::set_stillborn(oop java_thread) { | |
862 java_thread->bool_field_put(_stillborn_offset, true); | |
863 } | |
864 | |
865 | |
866 bool java_lang_Thread::is_alive(oop java_thread) { | |
867 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
868 return (thr != NULL); | |
869 } | |
870 | |
871 | |
872 bool java_lang_Thread::is_daemon(oop java_thread) { | |
873 return java_thread->bool_field(_daemon_offset) != 0; | |
874 } | |
875 | |
876 | |
877 void java_lang_Thread::set_daemon(oop java_thread) { | |
878 java_thread->bool_field_put(_daemon_offset, true); | |
879 } | |
880 | |
881 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
882 return java_thread->obj_field(_contextClassLoader_offset); | |
883 } | |
884 | |
885 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
886 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
887 } | |
888 | |
889 | |
890 jlong java_lang_Thread::stackSize(oop java_thread) { | |
891 // The stackSize field is only present starting in 1.4 | |
892 if (_stackSize_offset > 0) { | |
893 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
894 return java_thread->long_field(_stackSize_offset); | |
895 } else { | |
896 return 0; | |
897 } | |
898 } | |
899 | |
900 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
901 void java_lang_Thread::set_thread_status(oop java_thread, | |
902 java_lang_Thread::ThreadStatus status) { | |
903 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
904 // The threadStatus is only present starting in 1.5 | |
905 if (_thread_status_offset > 0) { | |
906 java_thread->int_field_put(_thread_status_offset, status); | |
907 } | |
908 } | |
909 | |
910 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
911 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
912 assert(Thread::current()->is_VM_thread() || | |
913 JavaThread::current()->thread_state() == _thread_in_vm, | |
914 "Java Thread is not running in vm"); | |
915 // The threadStatus is only present starting in 1.5 | |
916 if (_thread_status_offset > 0) { | |
917 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
918 } else { | |
919 // All we can easily figure out is if it is alive, but that is | |
920 // enough info for a valid unknown status. | |
921 // These aren't restricted to valid set ThreadStatus values, so | |
922 // use JVMTI values and cast. | |
923 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
924 if (thr == NULL) { | |
925 // the thread hasn't run yet or is in the process of exiting | |
926 return NEW; | |
927 } | |
928 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
929 } | |
930 } | |
931 | |
932 | |
933 jlong java_lang_Thread::thread_id(oop java_thread) { | |
934 // The thread ID field is only present starting in 1.5 | |
935 if (_tid_offset > 0) { | |
936 return java_thread->long_field(_tid_offset); | |
937 } else { | |
938 return 0; | |
939 } | |
940 } | |
941 | |
942 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 943 assert(JDK_Version::current().supports_thread_park_blocker() && |
944 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 945 |
946 if (_park_blocker_offset > 0) { | |
947 return java_thread->obj_field(_park_blocker_offset); | |
948 } | |
949 | |
950 return NULL; | |
951 } | |
952 | |
953 jlong java_lang_Thread::park_event(oop java_thread) { | |
954 if (_park_event_offset > 0) { | |
955 return java_thread->long_field(_park_event_offset); | |
956 } | |
957 return 0; | |
958 } | |
959 | |
960 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
961 if (_park_event_offset > 0) { | |
962 java_thread->long_field_put(_park_event_offset, ptr); | |
963 return true; | |
964 } | |
965 return false; | |
966 } | |
967 | |
968 | |
969 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
970 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
971 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
972 switch (status) { | |
973 case NEW : return "NEW"; | |
974 case RUNNABLE : return "RUNNABLE"; | |
975 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
976 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
977 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
978 case PARKED : return "WAITING (parking)"; | |
979 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
980 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
981 case TERMINATED : return "TERMINATED"; | |
982 default : return "UNKNOWN"; | |
983 }; | |
984 } | |
985 int java_lang_ThreadGroup::_parent_offset = 0; | |
986 int java_lang_ThreadGroup::_name_offset = 0; | |
987 int java_lang_ThreadGroup::_threads_offset = 0; | |
988 int java_lang_ThreadGroup::_groups_offset = 0; | |
989 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
990 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
991 int java_lang_ThreadGroup::_daemon_offset = 0; | |
992 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
993 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
994 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
995 | |
996 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
997 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
998 return java_thread_group->obj_field(_parent_offset); | |
999 } | |
1000 | |
1001 // ("name as oop" accessor is not necessary) | |
1002 | |
1003 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
1004 oop name = java_thread_group->obj_field(_name_offset); | |
1005 // ThreadGroup.name can be null | |
1006 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
1007 } | |
1008 | |
1009 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
1010 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1011 return java_thread_group->int_field(_nthreads_offset); | |
1012 } | |
1013 | |
1014 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
1015 oop threads = java_thread_group->obj_field(_threads_offset); | |
1016 assert(threads != NULL, "threadgroups should have threads"); | |
1017 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1018 return objArrayOop(threads); | |
1019 } | |
1020 | |
1021 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1022 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1023 return java_thread_group->int_field(_ngroups_offset); | |
1024 } | |
1025 | |
1026 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1027 oop groups = java_thread_group->obj_field(_groups_offset); | |
1028 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1029 return objArrayOop(groups); | |
1030 } | |
1031 | |
1032 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1033 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1034 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1035 } | |
1036 | |
1037 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1038 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1039 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1040 } | |
1041 | |
1042 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1043 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1044 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1045 } | |
1046 | |
1047 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1048 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1049 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1050 } | |
1051 | |
1052 void java_lang_ThreadGroup::compute_offsets() { | |
1053 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1054 | |
1142 | 1055 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 1056 |
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1057 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1058 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1059 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1060 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1061 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1062 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1063 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1064 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1065 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1066 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1067 } |
1068 | |
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1069 oop java_lang_Throwable::unassigned_stacktrace() { |
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1070 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1071 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1072 if (UseCompressedOops) { |
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1073 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1074 } else { |
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1075 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1076 } |
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1077 } |
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1078 |
0 | 1079 oop java_lang_Throwable::backtrace(oop throwable) { |
1080 return throwable->obj_field_acquire(backtrace_offset); | |
1081 } | |
1082 | |
1083 | |
1084 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1085 throwable->release_obj_field_put(backtrace_offset, value); | |
1086 } | |
1087 | |
1088 | |
1089 oop java_lang_Throwable::message(oop throwable) { | |
1090 return throwable->obj_field(detailMessage_offset); | |
1091 } | |
1092 | |
1093 | |
1094 oop java_lang_Throwable::message(Handle throwable) { | |
1095 return throwable->obj_field(detailMessage_offset); | |
1096 } | |
1097 | |
1098 | |
1099 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1100 throwable->obj_field_put(detailMessage_offset, value); | |
1101 } | |
1102 | |
1103 | |
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1104 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1105 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1106 } |
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1107 |
0 | 1108 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1109 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1110 set_stacktrace(throwable, NULL); |
0 | 1111 } |
1112 | |
1113 | |
1114 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1115 ResourceMark rm; | |
1116 klassOop k = throwable->klass(); | |
1117 assert(k != NULL, "just checking"); | |
1118 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1119 oop msg = message(throwable); | |
1120 if (msg != NULL) { | |
1121 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1122 } | |
1123 } | |
1124 | |
1125 | |
1126 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1127 ResourceMark rm; | |
1128 klassOop k = throwable->klass(); | |
1129 assert(k != NULL, "just checking"); | |
1130 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1131 oop msg = message(throwable); | |
1132 if (msg != NULL) { | |
1133 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1134 } | |
1135 } | |
1136 | |
1137 // Print stack trace element to resource allocated buffer | |
1138 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
1139 // Get strings and string lengths | |
1140 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
1141 const char* klass_name = klass->external_name(); | |
1142 int buf_len = (int)strlen(klass_name); | |
1143 char* source_file_name; | |
1144 if (klass->source_file_name() == NULL) { | |
1145 source_file_name = NULL; | |
1146 } else { | |
1147 source_file_name = klass->source_file_name()->as_C_string(); | |
1148 buf_len += (int)strlen(source_file_name); | |
1149 } | |
1150 char* method_name = method->name()->as_C_string(); | |
1151 buf_len += (int)strlen(method_name); | |
1152 | |
1153 // Allocate temporary buffer with extra space for formatting and line number | |
1154 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1155 | |
1156 // Print stack trace line in buffer | |
1157 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1158 if (method->is_native()) { | |
1159 strcat(buf, "(Native Method)"); | |
1160 } else { | |
1161 int line_number = method->line_number_from_bci(bci); | |
1162 if (source_file_name != NULL && (line_number != -1)) { | |
1163 // Sourcename and linenumber | |
1164 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1165 } else if (source_file_name != NULL) { | |
1166 // Just sourcename | |
1167 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1168 } else { | |
1169 // Neither soucename and linenumber | |
1170 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1171 } | |
1172 nmethod* nm = method->code(); | |
1173 if (WizardMode && nm != NULL) { | |
3960 | 1174 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
0 | 1175 } |
1176 } | |
1177 | |
1178 return buf; | |
1179 } | |
1180 | |
1181 | |
1182 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1183 ResourceMark rm; | |
1184 char* buf = print_stack_element_to_buffer(method, bci); | |
1185 print_to_stream(stream, buf); | |
1186 } | |
1187 | |
1188 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1189 ResourceMark rm; | |
1190 char* buf = print_stack_element_to_buffer(method, bci); | |
1191 st->print_cr("%s", buf); | |
1192 } | |
1193 | |
1194 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1195 if (stream.is_null()) { | |
1196 tty->print_cr("%s", str); | |
1197 } else { | |
1198 EXCEPTION_MARK; | |
1199 JavaValue result(T_VOID); | |
1200 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1201 if (!HAS_PENDING_EXCEPTION) { | |
1202 JavaCalls::call_virtual(&result, | |
1203 stream, | |
1204 KlassHandle(THREAD, stream->klass()), | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
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|
1205 vmSymbols::println_name(), |
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
1206 vmSymbols::char_array_void_signature(), |
0 | 1207 arg, |
1208 THREAD); | |
1209 } | |
1210 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1211 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1212 } | |
1213 | |
1214 } | |
1215 | |
1216 | |
1217 const char* java_lang_Throwable::no_stack_trace_message() { | |
1218 return "\t<<no stack trace available>>"; | |
1219 } | |
1220 | |
1221 | |
1222 // Currently used only for exceptions occurring during startup | |
1223 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1224 Thread *THREAD = Thread::current(); | |
1225 Handle h_throwable(THREAD, throwable); | |
1226 while (h_throwable.not_null()) { | |
1227 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1228 if (result.is_null()) { | |
1229 st->print_cr(no_stack_trace_message()); | |
1230 return; | |
1231 } | |
1232 | |
1233 while (result.not_null()) { | |
1234 objArrayHandle methods (THREAD, | |
1235 objArrayOop(result->obj_at(trace_methods_offset))); | |
1236 typeArrayHandle bcis (THREAD, | |
1237 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1238 | |
1239 if (methods.is_null() || bcis.is_null()) { | |
1240 st->print_cr(no_stack_trace_message()); | |
1241 return; | |
1242 } | |
1243 | |
1244 int length = methods()->length(); | |
1245 for (int index = 0; index < length; index++) { | |
1246 methodOop method = methodOop(methods()->obj_at(index)); | |
1247 if (method == NULL) goto handle_cause; | |
1248 int bci = bcis->ushort_at(index); | |
1249 print_stack_element(st, method, bci); | |
1250 } | |
1251 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1252 } | |
1253 handle_cause: | |
1254 { | |
1255 EXCEPTION_MARK; | |
1256 JavaValue result(T_OBJECT); | |
1257 JavaCalls::call_virtual(&result, | |
1258 h_throwable, | |
1259 KlassHandle(THREAD, h_throwable->klass()), | |
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diff
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|
1260 vmSymbols::getCause_name(), |
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|
1261 vmSymbols::void_throwable_signature(), |
0 | 1262 THREAD); |
1263 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1264 if (HAS_PENDING_EXCEPTION) { | |
1265 CLEAR_PENDING_EXCEPTION; | |
1266 h_throwable = Handle(); | |
1267 } else { | |
1268 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1269 if (h_throwable.not_null()) { | |
1270 st->print("Caused by: "); | |
1271 print(h_throwable, st); | |
1272 st->cr(); | |
1273 } | |
1274 } | |
1275 } | |
1276 } | |
1277 } | |
1278 | |
1279 | |
1280 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1281 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1282 Thread *thread = Thread::current(); | |
1283 Handle stream(thread, print_stream); | |
1284 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1285 if (result.is_null()) { | |
1286 print_to_stream(stream, no_stack_trace_message()); | |
1287 return; | |
1288 } | |
1289 | |
1290 while (result.not_null()) { | |
1291 objArrayHandle methods (thread, | |
1292 objArrayOop(result->obj_at(trace_methods_offset))); | |
1293 typeArrayHandle bcis (thread, | |
1294 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1295 | |
1296 if (methods.is_null() || bcis.is_null()) { | |
1297 print_to_stream(stream, no_stack_trace_message()); | |
1298 return; | |
1299 } | |
1300 | |
1301 int length = methods()->length(); | |
1302 for (int index = 0; index < length; index++) { | |
1303 methodOop method = methodOop(methods()->obj_at(index)); | |
1304 if (method == NULL) return; | |
1305 int bci = bcis->ushort_at(index); | |
1306 print_stack_element(stream, method, bci); | |
1307 } | |
1308 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1309 } | |
1310 } | |
1311 | |
1312 // This class provides a simple wrapper over the internal structure of | |
1313 // exception backtrace to insulate users of the backtrace from needing | |
1314 // to know what it looks like. | |
1315 class BacktraceBuilder: public StackObj { | |
1316 private: | |
1317 Handle _backtrace; | |
1318 objArrayOop _head; | |
1319 objArrayOop _methods; | |
1320 typeArrayOop _bcis; | |
1321 int _index; | |
1322 No_Safepoint_Verifier _nsv; | |
1323 | |
1324 public: | |
1325 | |
1326 enum { | |
1327 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1328 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1329 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1330 trace_size = java_lang_Throwable::trace_size, | |
1331 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1332 }; | |
1333 | |
1334 // constructor for new backtrace | |
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1335 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
0 | 1336 expand(CHECK); |
1337 _backtrace = _head; | |
1338 _index = 0; | |
1339 } | |
1340 | |
1341 void expand(TRAPS) { | |
1342 objArrayHandle old_head(THREAD, _head); | |
1343 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1344 | |
1345 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1346 objArrayHandle new_head(THREAD, head); | |
1347 | |
1348 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1349 objArrayHandle new_methods(THREAD, methods); | |
1350 | |
1351 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1352 typeArrayHandle new_bcis(THREAD, bcis); | |
1353 | |
1354 if (!old_head.is_null()) { | |
1355 old_head->obj_at_put(trace_next_offset, new_head()); | |
1356 } | |
1357 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1358 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1359 | |
1360 _head = new_head(); | |
1361 _methods = new_methods(); | |
1362 _bcis = new_bcis(); | |
1363 _index = 0; | |
1364 } | |
1365 | |
1366 oop backtrace() { | |
1367 return _backtrace(); | |
1368 } | |
1369 | |
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1370 inline void push(methodOop method, int bci, TRAPS) { |
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1371 // Smear the -1 bci to 0 since the array only holds unsigned |
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1372 // shorts. The later line number lookup would just smear the -1 |
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1373 // to a 0 even if it could be recorded. |
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1374 if (bci == SynchronizationEntryBCI) bci = 0; |
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|
1375 assert(bci == (jushort)bci, "doesn't fit"); |
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diff
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|
1376 |
0 | 1377 if (_index >= trace_chunk_size) { |
1378 methodHandle mhandle(THREAD, method); | |
1379 expand(CHECK); | |
1380 method = mhandle(); | |
1381 } | |
1382 | |
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diff
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|
1383 _methods->obj_at_put(_index, method); |
0 | 1384 _bcis->ushort_at_put(_index, bci); |
1385 _index++; | |
1386 } | |
1387 | |
1388 methodOop current_method() { | |
1389 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1390 return methodOop(_methods->obj_at(_index)); | |
1391 } | |
1392 | |
1393 jushort current_bci() { | |
1394 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1395 return _bcis->ushort_at(_index); | |
1396 } | |
1397 }; | |
1398 | |
1399 | |
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|
1400 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1401 if (!StackTraceInThrowable) return; |
1402 ResourceMark rm(THREAD); | |
1403 | |
1404 // Start out by clearing the backtrace for this object, in case the VM | |
1405 // runs out of memory while allocating the stack trace | |
1406 set_backtrace(throwable(), NULL); | |
1407 if (JDK_Version::is_gte_jdk14x_version()) { | |
1408 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1409 // refilling occurs | |
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3795
diff
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1410 // This is unnecessary in 1.7+ but harmless |
0 | 1411 clear_stacktrace(throwable()); |
1412 } | |
1413 | |
1414 int max_depth = MaxJavaStackTraceDepth; | |
1415 JavaThread* thread = (JavaThread*)THREAD; | |
1416 BacktraceBuilder bt(CHECK); | |
1417 | |
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1418 // If there is no Java frame just return the method that was being called |
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7009923: JSR 292: VM crash in JavaThread::last_frame
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1419 // with bci 0 |
01147d8aac1d
7009923: JSR 292: VM crash in JavaThread::last_frame
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1420 if (!thread->has_last_Java_frame()) { |
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1421 if (max_depth >= 1 && method() != NULL) { |
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1422 bt.push(method(), 0, CHECK); |
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1423 set_backtrace(throwable(), bt.backtrace()); |
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|
1424 } |
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diff
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|
1425 return; |
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diff
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|
1426 } |
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|
1427 |
0 | 1428 // Instead of using vframe directly, this version of fill_in_stack_trace |
1429 // basically handles everything by hand. This significantly improved the | |
1430 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1431 // See bug 6333838 for more details. | |
1432 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1433 // trace as utilizing vframe. | |
1434 #ifdef ASSERT | |
1435 vframeStream st(thread); | |
1436 methodHandle st_method(THREAD, st.method()); | |
1437 #endif | |
1438 int total_count = 0; | |
1439 RegisterMap map(thread, false); | |
1440 int decode_offset = 0; | |
1441 nmethod* nm = NULL; | |
1442 bool skip_fillInStackTrace_check = false; | |
1443 bool skip_throwableInit_check = false; | |
1444 | |
1445 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1446 methodOop method = NULL; | |
1447 int bci = 0; | |
1448 | |
1449 // Compiled java method case. | |
1450 if (decode_offset != 0) { | |
1451 DebugInfoReadStream stream(nm, decode_offset); | |
1452 decode_offset = stream.read_int(); | |
1453 method = (methodOop)nm->oop_at(stream.read_int()); | |
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diff
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|
1454 bci = stream.read_bci(); |
0 | 1455 } else { |
1456 if (fr.is_first_frame()) break; | |
1457 address pc = fr.pc(); | |
1458 if (fr.is_interpreted_frame()) { | |
1459 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1460 method = fr.interpreter_frame_method(); | |
1461 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1462 fr = fr.sender(&map); | |
1463 } else { | |
1464 CodeBlob* cb = fr.cb(); | |
1465 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1466 // but non nmethod | |
1467 fr = fr.sender(&map); | |
1468 if (cb == NULL || !cb->is_nmethod()) { | |
1469 continue; | |
1470 } | |
1471 nm = (nmethod*)cb; | |
1472 if (nm->method()->is_native()) { | |
1473 method = nm->method(); | |
1474 bci = 0; | |
1475 } else { | |
1476 PcDesc* pd = nm->pc_desc_at(pc); | |
1477 decode_offset = pd->scope_decode_offset(); | |
1478 // if decode_offset is not equal to 0, it will execute the | |
1479 // "compiled java method case" at the beginning of the loop. | |
1480 continue; | |
1481 } | |
1482 } | |
1483 } | |
1484 #ifdef ASSERT | |
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diff
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1485 assert(st_method() == method && st.bci() == bci, |
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diff
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|
1486 "Wrong stack trace"); |
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2379
diff
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|
1487 st.next(); |
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diff
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|
1488 // vframeStream::method isn't GC-safe so store off a copy |
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diff
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|
1489 // of the methodOop in case we GC. |
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diff
changeset
|
1490 if (!st.at_end()) { |
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diff
changeset
|
1491 st_method = st.method(); |
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|
1492 } |
0 | 1493 #endif |
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diff
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|
1494 |
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|
1495 // the format of the stacktrace will be: |
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diff
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|
1496 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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diff
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|
1497 // - 0 or more <init> methods for the exception class (skipped) |
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|
1498 // - rest of the stack |
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|
1499 |
0 | 1500 if (!skip_fillInStackTrace_check) { |
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diff
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1501 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
6a615eae2f34
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diff
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|
1502 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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diff
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|
1503 throwable->is_a(method->method_holder())) { |
0 | 1504 continue; |
1505 } | |
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diff
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|
1506 else { |
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diff
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|
1507 skip_fillInStackTrace_check = true; // gone past them all |
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diff
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|
1508 } |
0 | 1509 } |
1510 if (!skip_throwableInit_check) { | |
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diff
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|
1511 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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diff
changeset
|
1512 |
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2379
diff
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|
1513 // skip <init> methods of the exception class and superclasses |
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diff
changeset
|
1514 // This is simlar to classic VM. |
0 | 1515 if (method->name() == vmSymbols::object_initializer_name() && |
1516 throwable->is_a(method->method_holder())) { | |
1517 continue; | |
1518 } else { | |
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2379
diff
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1519 // there are none or we've seen them all - either way stop checking |
0 | 1520 skip_throwableInit_check = true; |
1521 } | |
1522 } | |
1523 bt.push(method, bci, CHECK); | |
1524 total_count++; | |
1525 } | |
1526 | |
1527 // Put completed stack trace into throwable object | |
1528 set_backtrace(throwable(), bt.backtrace()); | |
1529 } | |
1530 | |
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diff
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|
1531 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1532 // No-op if stack trace is disabled |
1533 if (!StackTraceInThrowable) { | |
1534 return; | |
1535 } | |
1536 | |
1537 // Disable stack traces for some preallocated out of memory errors | |
1538 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1539 return; | |
1540 } | |
1541 | |
1542 PRESERVE_EXCEPTION_MARK; | |
1543 | |
1544 JavaThread* thread = JavaThread::active(); | |
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|
1545 fill_in_stack_trace(throwable, method, thread); |
0 | 1546 // ignore exceptions thrown during stack trace filling |
1547 CLEAR_PENDING_EXCEPTION; | |
1548 } | |
1549 | |
1550 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1551 // Allocate stack trace - backtrace is created but not filled in | |
1552 | |
1553 // No-op if stack trace is disabled | |
1554 if (!StackTraceInThrowable) return; | |
1555 | |
1556 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1557 objArrayHandle backtrace (THREAD, h_oop); | |
1558 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1559 objArrayHandle methods (THREAD, m_oop); | |
1560 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1561 typeArrayHandle bcis(THREAD, b); | |
1562 | |
1563 // backtrace has space for one chunk (next is NULL) | |
1564 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1565 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1566 set_backtrace(throwable(), backtrace()); | |
1567 } | |
1568 | |
1569 | |
1570 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1571 // Fill in stack trace into preallocated backtrace (no GC) | |
1572 | |
1573 // No-op if stack trace is disabled | |
1574 if (!StackTraceInThrowable) return; | |
1575 | |
1142 | 1576 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1577 |
1578 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1579 assert(backtrace != NULL, "backtrace not preallocated"); | |
1580 | |
1581 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1582 objArrayOop methods = objArrayOop(m); | |
1583 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1584 | |
1585 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1586 typeArrayOop bcis = typeArrayOop(b); | |
1587 assert(bcis != NULL, "bci array not preallocated"); | |
1588 | |
1589 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1590 | |
1591 JavaThread* thread = JavaThread::current(); | |
1592 ResourceMark rm(thread); | |
1593 vframeStream st(thread); | |
1594 | |
1595 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1596 // methods as preallocated errors aren't created by "java" code. | |
1597 | |
1598 // fill in as much stack trace as possible | |
1599 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1600 int chunk_count = 0; | |
1601 | |
1602 for (;!st.at_end(); st.next()) { | |
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1603 // Add entry and smear the -1 bci to 0 since the array only holds |
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1604 // unsigned shorts. The later line number lookup would just smear |
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1605 // the -1 to a 0 even if it could be recorded. |
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1606 int bci = st.bci(); |
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1607 if (bci == SynchronizationEntryBCI) bci = 0; |
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1608 assert(bci == (jushort)bci, "doesn't fit"); |
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1609 bcis->ushort_at_put(chunk_count, bci); |
0 | 1610 methods->obj_at_put(chunk_count, st.method()); |
1611 | |
1612 chunk_count++; | |
1613 | |
1614 // Bail-out for deep stacks | |
1615 if (chunk_count >= max_chunks) break; | |
1616 } | |
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1617 |
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1618 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1619 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1620 // can be removed in a JDK using this JVM version |
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1621 if (JDK_Version::is_gte_jdk17x_version()) { |
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1622 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1623 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1624 } |
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1625 |
0 | 1626 } |
1627 | |
1628 | |
1629 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1630 if (throwable == NULL) { | |
1631 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1632 } | |
1633 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1634 int depth = 0; | |
1635 if (chunk != NULL) { | |
1636 // Iterate over chunks and count full ones | |
1637 while (true) { | |
1638 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1639 if (next == NULL) break; | |
1640 depth += trace_chunk_size; | |
1641 chunk = next; | |
1642 } | |
1643 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1644 // Count element in remaining partial chunk | |
1645 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1646 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1647 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1648 for (int i = 0; i < methods->length(); i++) { | |
1649 if (methods->obj_at(i) == NULL) break; | |
1650 depth++; | |
1651 } | |
1652 } | |
1653 return depth; | |
1654 } | |
1655 | |
1656 | |
1657 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1658 if (throwable == NULL) { | |
1659 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1660 } | |
1661 if (index < 0) { | |
1662 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1663 } | |
1664 // Compute how many chunks to skip and index into actual chunk | |
1665 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1666 int skip_chunks = index / trace_chunk_size; | |
1667 int chunk_index = index % trace_chunk_size; | |
1668 while (chunk != NULL && skip_chunks > 0) { | |
1669 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1670 skip_chunks--; | |
1671 } | |
1672 if (chunk == NULL) { | |
1673 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1674 } | |
1675 // Get method,bci from chunk | |
1676 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1677 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1678 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1679 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1680 int bci = bcis->ushort_at(chunk_index); | |
1681 // Chunk can be partial full | |
1682 if (method.is_null()) { | |
1683 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1684 } | |
1685 | |
1686 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1687 return element; | |
1688 } | |
1689 | |
1690 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1691 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1692 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1693 | |
1694 // Allocate java.lang.StackTraceElement instance | |
1142 | 1695 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1696 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1697 instanceKlassHandle ik (THREAD, k); |
1698 if (ik->should_be_initialized()) { | |
1699 ik->initialize(CHECK_0); | |
1700 } | |
1701 | |
1702 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1703 // Fill in class name | |
1704 ResourceMark rm(THREAD); | |
1705 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1706 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1707 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1708 // Fill in method name | |
1709 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1710 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1711 // Fill in source file name | |
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1712 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1713 oop filename = StringTable::intern(source, CHECK_0); |
1714 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1715 // File in source line number | |
1716 int line_number; | |
1717 if (method->is_native()) { | |
1718 // Negative value different from -1 below, enabling Java code in | |
1719 // class java.lang.StackTraceElement to distinguish "native" from | |
1720 // "no LineNumberTable". | |
1721 line_number = -2; | |
1722 } else { | |
1723 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1724 line_number = method->line_number_from_bci(bci); | |
1725 } | |
1726 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1727 | |
1728 return element(); | |
1729 } | |
1730 | |
1731 | |
1732 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1733 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1734 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1735 } |
1736 | |
1737 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1738 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1739 return (jboolean) reflect->bool_field(override_offset); | |
1740 } | |
1741 | |
1742 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1743 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1744 reflect->bool_field_put(override_offset, (int) value); | |
1745 } | |
1746 | |
1747 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1748 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1749 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1750 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1751 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1752 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1753 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1754 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1755 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1756 // The generic signature and annotations fields are only present in 1.5 |
1757 signature_offset = -1; | |
1758 annotations_offset = -1; | |
1759 parameter_annotations_offset = -1; | |
1760 annotation_default_offset = -1; | |
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1761 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1762 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1763 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1764 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1765 } |
1766 | |
1767 Handle java_lang_reflect_Method::create(TRAPS) { | |
1768 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1769 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1770 // This class is eagerly initialized during VM initialization, since we keep a refence |
1771 // to one of the methods | |
1772 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1773 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1774 } | |
1775 | |
1776 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1777 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1778 return reflect->obj_field(clazz_offset); | |
1779 } | |
1780 | |
1781 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1782 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1783 reflect->obj_field_put(clazz_offset, value); | |
1784 } | |
1785 | |
1786 int java_lang_reflect_Method::slot(oop reflect) { | |
1787 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1788 return reflect->int_field(slot_offset); | |
1789 } | |
1790 | |
1791 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1792 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1793 reflect->int_field_put(slot_offset, value); | |
1794 } | |
1795 | |
1796 oop java_lang_reflect_Method::name(oop method) { | |
1797 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1798 return method->obj_field(name_offset); | |
1799 } | |
1800 | |
1801 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1802 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1803 method->obj_field_put(name_offset, value); | |
1804 } | |
1805 | |
1806 oop java_lang_reflect_Method::return_type(oop method) { | |
1807 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1808 return method->obj_field(returnType_offset); | |
1809 } | |
1810 | |
1811 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1812 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1813 method->obj_field_put(returnType_offset, value); | |
1814 } | |
1815 | |
1816 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1817 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1818 return method->obj_field(parameterTypes_offset); | |
1819 } | |
1820 | |
1821 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1822 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1823 method->obj_field_put(parameterTypes_offset, value); | |
1824 } | |
1825 | |
1826 oop java_lang_reflect_Method::exception_types(oop method) { | |
1827 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1828 return method->obj_field(exceptionTypes_offset); | |
1829 } | |
1830 | |
1831 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1832 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1833 method->obj_field_put(exceptionTypes_offset, value); | |
1834 } | |
1835 | |
1836 int java_lang_reflect_Method::modifiers(oop method) { | |
1837 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1838 return method->int_field(modifiers_offset); | |
1839 } | |
1840 | |
1841 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1842 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1843 method->int_field_put(modifiers_offset, value); | |
1844 } | |
1845 | |
1846 bool java_lang_reflect_Method::has_signature_field() { | |
1847 return (signature_offset >= 0); | |
1848 } | |
1849 | |
1850 oop java_lang_reflect_Method::signature(oop method) { | |
1851 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1852 assert(has_signature_field(), "signature field must be present"); | |
1853 return method->obj_field(signature_offset); | |
1854 } | |
1855 | |
1856 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1857 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1858 assert(has_signature_field(), "signature field must be present"); | |
1859 method->obj_field_put(signature_offset, value); | |
1860 } | |
1861 | |
1862 bool java_lang_reflect_Method::has_annotations_field() { | |
1863 return (annotations_offset >= 0); | |
1864 } | |
1865 | |
1866 oop java_lang_reflect_Method::annotations(oop method) { | |
1867 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1868 assert(has_annotations_field(), "annotations field must be present"); | |
1869 return method->obj_field(annotations_offset); | |
1870 } | |
1871 | |
1872 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1873 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1874 assert(has_annotations_field(), "annotations field must be present"); | |
1875 method->obj_field_put(annotations_offset, value); | |
1876 } | |
1877 | |
1878 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1879 return (parameter_annotations_offset >= 0); | |
1880 } | |
1881 | |
1882 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1883 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1884 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1885 return method->obj_field(parameter_annotations_offset); | |
1886 } | |
1887 | |
1888 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1889 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1890 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1891 method->obj_field_put(parameter_annotations_offset, value); | |
1892 } | |
1893 | |
1894 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1895 return (annotation_default_offset >= 0); | |
1896 } | |
1897 | |
1898 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1899 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1900 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1901 return method->obj_field(annotation_default_offset); | |
1902 } | |
1903 | |
1904 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1906 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1907 method->obj_field_put(annotation_default_offset, value); | |
1908 } | |
1909 | |
1910 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1911 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1912 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1913 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1914 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1915 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1916 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1917 // The generic signature and annotations fields are only present in 1.5 |
1918 signature_offset = -1; | |
1919 annotations_offset = -1; | |
1920 parameter_annotations_offset = -1; | |
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1921 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1922 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1923 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1924 } |
1925 | |
1926 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1927 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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1928 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1929 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1930 instanceKlassHandle klass (THREAD, k); | |
1931 // Ensure it is initialized | |
1932 klass->initialize(CHECK_NH); | |
1933 return klass->allocate_instance_handle(CHECK_NH); | |
1934 } | |
1935 | |
1936 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1937 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1938 return reflect->obj_field(clazz_offset); | |
1939 } | |
1940 | |
1941 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1942 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1943 reflect->obj_field_put(clazz_offset, value); | |
1944 } | |
1945 | |
1946 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1947 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1948 return constructor->obj_field(parameterTypes_offset); | |
1949 } | |
1950 | |
1951 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1952 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1953 constructor->obj_field_put(parameterTypes_offset, value); | |
1954 } | |
1955 | |
1956 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1957 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1958 return constructor->obj_field(exceptionTypes_offset); | |
1959 } | |
1960 | |
1961 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1962 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1963 constructor->obj_field_put(exceptionTypes_offset, value); | |
1964 } | |
1965 | |
1966 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1967 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1968 return reflect->int_field(slot_offset); | |
1969 } | |
1970 | |
1971 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1972 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1973 reflect->int_field_put(slot_offset, value); | |
1974 } | |
1975 | |
1976 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1977 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1978 return constructor->int_field(modifiers_offset); | |
1979 } | |
1980 | |
1981 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1982 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1983 constructor->int_field_put(modifiers_offset, value); | |
1984 } | |
1985 | |
1986 bool java_lang_reflect_Constructor::has_signature_field() { | |
1987 return (signature_offset >= 0); | |
1988 } | |
1989 | |
1990 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1991 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1992 assert(has_signature_field(), "signature field must be present"); | |
1993 return constructor->obj_field(signature_offset); | |
1994 } | |
1995 | |
1996 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1997 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1998 assert(has_signature_field(), "signature field must be present"); | |
1999 constructor->obj_field_put(signature_offset, value); | |
2000 } | |
2001 | |
2002 bool java_lang_reflect_Constructor::has_annotations_field() { | |
2003 return (annotations_offset >= 0); | |
2004 } | |
2005 | |
2006 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
2007 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2008 assert(has_annotations_field(), "annotations field must be present"); | |
2009 return constructor->obj_field(annotations_offset); | |
2010 } | |
2011 | |
2012 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
2013 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2014 assert(has_annotations_field(), "annotations field must be present"); | |
2015 constructor->obj_field_put(annotations_offset, value); | |
2016 } | |
2017 | |
2018 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
2019 return (parameter_annotations_offset >= 0); | |
2020 } | |
2021 | |
2022 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
2023 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2024 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2025 return method->obj_field(parameter_annotations_offset); | |
2026 } | |
2027 | |
2028 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
2029 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2030 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2031 method->obj_field_put(parameter_annotations_offset, value); | |
2032 } | |
2033 | |
2034 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 2035 klassOop k = SystemDictionary::reflect_Field_klass(); |
132
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2036 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2037 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2038 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2039 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2040 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2041 // The generic signature and annotations fields are only present in 1.5 |
2042 signature_offset = -1; | |
2043 annotations_offset = -1; | |
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2044 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2045 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2046 } |
2047 | |
2048 Handle java_lang_reflect_Field::create(TRAPS) { | |
2049 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2050 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 2051 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
2052 instanceKlassHandle klass (THREAD, k); | |
2053 // Ensure it is initialized | |
2054 klass->initialize(CHECK_NH); | |
2055 return klass->allocate_instance_handle(CHECK_NH); | |
2056 } | |
2057 | |
2058 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2059 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2060 return reflect->obj_field(clazz_offset); | |
2061 } | |
2062 | |
2063 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2064 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2065 reflect->obj_field_put(clazz_offset, value); | |
2066 } | |
2067 | |
2068 oop java_lang_reflect_Field::name(oop field) { | |
2069 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2070 return field->obj_field(name_offset); | |
2071 } | |
2072 | |
2073 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2074 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2075 field->obj_field_put(name_offset, value); | |
2076 } | |
2077 | |
2078 oop java_lang_reflect_Field::type(oop field) { | |
2079 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2080 return field->obj_field(type_offset); | |
2081 } | |
2082 | |
2083 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2084 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2085 field->obj_field_put(type_offset, value); | |
2086 } | |
2087 | |
2088 int java_lang_reflect_Field::slot(oop reflect) { | |
2089 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2090 return reflect->int_field(slot_offset); | |
2091 } | |
2092 | |
2093 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2094 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2095 reflect->int_field_put(slot_offset, value); | |
2096 } | |
2097 | |
2098 int java_lang_reflect_Field::modifiers(oop field) { | |
2099 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2100 return field->int_field(modifiers_offset); | |
2101 } | |
2102 | |
2103 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2104 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2105 field->int_field_put(modifiers_offset, value); | |
2106 } | |
2107 | |
2108 bool java_lang_reflect_Field::has_signature_field() { | |
2109 return (signature_offset >= 0); | |
2110 } | |
2111 | |
2112 oop java_lang_reflect_Field::signature(oop field) { | |
2113 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2114 assert(has_signature_field(), "signature field must be present"); | |
2115 return field->obj_field(signature_offset); | |
2116 } | |
2117 | |
2118 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2119 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2120 assert(has_signature_field(), "signature field must be present"); | |
2121 field->obj_field_put(signature_offset, value); | |
2122 } | |
2123 | |
2124 bool java_lang_reflect_Field::has_annotations_field() { | |
2125 return (annotations_offset >= 0); | |
2126 } | |
2127 | |
2128 oop java_lang_reflect_Field::annotations(oop field) { | |
2129 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2130 assert(has_annotations_field(), "annotations field must be present"); | |
2131 return field->obj_field(annotations_offset); | |
2132 } | |
2133 | |
2134 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2135 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2136 assert(has_annotations_field(), "annotations field must be present"); | |
2137 field->obj_field_put(annotations_offset, value); | |
2138 } | |
2139 | |
2140 | |
2141 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 2142 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2143 // This null test can be removed post beta |
2144 if (k != NULL) { | |
132
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2145 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 2146 } |
2147 } | |
2148 | |
2149 | |
2150 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2151 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 2152 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2153 instanceKlassHandle klass (THREAD, k); |
2154 // Ensure it is initialized | |
2155 klass->initialize(CHECK_NH); | |
2156 return klass->allocate_instance_handle(CHECK_NH); | |
2157 } | |
2158 | |
2159 | |
2160 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
2161 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2162 return reflect->obj_field(_cp_oop_offset); | |
2163 } | |
2164 | |
2165 | |
2166 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2167 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2168 reflect->obj_field_put(_cp_oop_offset, value); | |
2169 } | |
2170 | |
2171 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2172 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2173 // This null test can be removed post beta |
2174 if (k != NULL) { | |
132
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2175 compute_offset(_base_offset, k, |
0 | 2176 vmSymbols::base_name(), vmSymbols::object_signature()); |
2177 } | |
2178 } | |
2179 | |
132
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2180 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2181 klassOop k = SystemDictionary::box_klass(type); |
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2182 if (k == NULL) return NULL; |
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2183 instanceKlassHandle h (THREAD, k); |
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2184 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2185 return h->allocate_instance(THREAD); |
0 | 2186 } |
2187 | |
2188 | |
2189 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2190 oop box = initialize_and_allocate(type, CHECK_0); |
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2191 if (box == NULL) return NULL; |
0 | 2192 switch (type) { |
2193 case T_BOOLEAN: | |
2194 box->bool_field_put(value_offset, value->z); | |
2195 break; | |
2196 case T_CHAR: | |
2197 box->char_field_put(value_offset, value->c); | |
2198 break; | |
2199 case T_FLOAT: | |
2200 box->float_field_put(value_offset, value->f); | |
2201 break; | |
2202 case T_DOUBLE: | |
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2203 box->double_field_put(long_value_offset, value->d); |
0 | 2204 break; |
2205 case T_BYTE: | |
2206 box->byte_field_put(value_offset, value->b); | |
2207 break; | |
2208 case T_SHORT: | |
2209 box->short_field_put(value_offset, value->s); | |
2210 break; | |
2211 case T_INT: | |
2212 box->int_field_put(value_offset, value->i); | |
2213 break; | |
2214 case T_LONG: | |
165
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2215 box->long_field_put(long_value_offset, value->j); |
0 | 2216 break; |
2217 default: | |
2218 return NULL; | |
2219 } | |
2220 return box; | |
2221 } | |
2222 | |
2223 | |
132
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2224 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2225 if (box == NULL) return T_ILLEGAL; |
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2226 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2227 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2228 return T_ILLEGAL; |
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2229 return type; |
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2230 } |
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2231 |
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2232 |
0 | 2233 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2234 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2235 switch (type) { |
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2236 case T_BOOLEAN: |
0 | 2237 value->z = box->bool_field(value_offset); |
132
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2238 break; |
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2239 case T_CHAR: |
0 | 2240 value->c = box->char_field(value_offset); |
132
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2241 break; |
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2242 case T_FLOAT: |
0 | 2243 value->f = box->float_field(value_offset); |
132
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2244 break; |
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2245 case T_DOUBLE: |
165
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2246 value->d = box->double_field(long_value_offset); |
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2247 break; |
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2248 case T_BYTE: |
0 | 2249 value->b = box->byte_field(value_offset); |
132
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2250 break; |
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2251 case T_SHORT: |
0 | 2252 value->s = box->short_field(value_offset); |
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2253 break; |
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2254 case T_INT: |
0 | 2255 value->i = box->int_field(value_offset); |
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2256 break; |
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2257 case T_LONG: |
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2258 value->j = box->long_field(long_value_offset); |
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changeset
|
2259 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2260 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2261 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2262 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2263 return type; |
0 | 2264 } |
2265 | |
2266 | |
2267 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2268 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2269 switch (type) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2270 case T_BOOLEAN: |
0 | 2271 box->bool_field_put(value_offset, value->z); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2272 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2273 case T_CHAR: |
0 | 2274 box->char_field_put(value_offset, value->c); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2275 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2276 case T_FLOAT: |
0 | 2277 box->float_field_put(value_offset, value->f); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2278 break; |
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2279 case T_DOUBLE: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2280 box->double_field_put(long_value_offset, value->d); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2281 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2282 case T_BYTE: |
0 | 2283 box->byte_field_put(value_offset, value->b); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2284 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2285 case T_SHORT: |
0 | 2286 box->short_field_put(value_offset, value->s); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2287 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2288 case T_INT: |
0 | 2289 box->int_field_put(value_offset, value->i); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2290 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2291 case T_LONG: |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2292 box->long_field_put(long_value_offset, value->j); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2293 break; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2294 default: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2295 return T_ILLEGAL; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2296 } // end switch |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2297 return type; |
0 | 2298 } |
2299 | |
2300 | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2301 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2302 switch (type) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2303 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2304 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2305 case T_BYTE: st->print("%d", value->b); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2306 case T_SHORT: st->print("%d", value->s); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2307 case T_INT: st->print("%d", value->i); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2308 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2309 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2310 case T_DOUBLE: st->print("%lf", value->d); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2311 default: st->print("type %d?", type); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2312 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2313 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2314 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2315 |
0 | 2316 // Support for java_lang_ref_Reference |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2317 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2318 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2319 address addr = ik->static_field_addr(static_lock_offset); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2320 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2321 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2322 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2323 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2324 } |
0 | 2325 } |
2326 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2327 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2328 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2329 address addr = ik->static_field_addr(static_pending_offset); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2330 // XXX This might not be HeapWord aligned, almost rather be char *. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2331 return (HeapWord*)addr; |
0 | 2332 } |
2333 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2334 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2335 char *addr = (char *)pending_list_addr(); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2336 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2337 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2338 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2339 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2340 } |
0 | 2341 } |
2342 | |
2343 | |
2344 // Support for java_lang_ref_SoftReference | |
2345 | |
2346 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2347 return ref->long_field(timestamp_offset); | |
2348 } | |
2349 | |
2350 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2351 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2352 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2353 return *offset; |
0 | 2354 } |
2355 | |
2356 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2357 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2358 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2359 *offset = value; |
0 | 2360 } |
2361 | |
2362 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2363 // Support for java_lang_invoke_MethodHandle |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2364 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2365 int java_lang_invoke_MethodHandle::_type_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2366 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
|
2367 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
|
2368 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2369 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
|
2370 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
|
2371 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
|
2372 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
|
2373 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
|
2374 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
|
2375 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2376 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
|
2377 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2378 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
|
2379 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
|
2380 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2381 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
|
2382 |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2383 int java_lang_invoke_CountingMethodHandle::_vmcount_offset; |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2384 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2385 void java_lang_invoke_MethodHandle::compute_offsets() { |
3938 | 2386 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
2387 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2388 bool allow_super = false; |
3938 | 2389 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
2390 METHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2391 } |
2392 } | |
2393 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2394 void java_lang_invoke_MemberName::compute_offsets() { |
3938 | 2395 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
2396 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2397 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2398 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2399 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2400 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2401 compute_offset(_vmindex_offset, klass_oop, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2402 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2403 } |
2404 } | |
2405 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2406 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2407 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2408 if (k != NULL && EnableInvokeDynamic) { |
3938 | 2409 DIRECTMETHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2410 } |
2411 } | |
2412 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2413 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2414 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2415 if (k != NULL && EnableInvokeDynamic) { |
710 | 2416 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
2417 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2418 } | |
2419 } | |
2420 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2421 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2422 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2423 if (k != NULL && EnableInvokeDynamic) { |
710 | 2424 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
2425 } | |
2426 } | |
2427 | |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2428 void java_lang_invoke_CountingMethodHandle::compute_offsets() { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2429 klassOop k = SystemDictionary::CountingMethodHandle_klass(); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2430 if (k != NULL && EnableInvokeDynamic) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2431 compute_offset(_vmcount_offset, k, vmSymbols::vmcount_name(), vmSymbols::int_signature(), true); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2432 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2433 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2434 |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2435 int java_lang_invoke_CountingMethodHandle::vmcount(oop mh) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2436 assert(is_instance(mh), "CMH only"); |
c26de9aef2ed
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|
2437 return mh->int_field(_vmcount_offset); |
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|
2438 } |
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|
2439 |
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diff
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|
2440 void java_lang_invoke_CountingMethodHandle::set_vmcount(oop mh, int count) { |
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|
2441 assert(is_instance(mh), "CMH only"); |
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|
2442 mh->int_field_put(_vmcount_offset, count); |
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|
2443 } |
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|
2444 |
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|
2445 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2446 return mh->obj_field(_type_offset); |
2447 } | |
2448 | |
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|
2449 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2450 mh->obj_field_put(_type_offset, mtype); |
2451 } | |
2452 | |
2453 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2454 // required to carry the arguments of this MH | |
3938 | 2455 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2456 oop mtype = type(mh); |
2457 if (mtype == NULL) return 0; // Java code would get NPE | |
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|
2458 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2459 if (form == NULL) return 0; // Java code would get NPE |
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|
2460 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2461 } |
2462 | |
2463 // fetch the low-level entry point for this mh | |
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|
2464 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2465 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2466 } | |
2467 | |
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|
2468 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2469 assert(_vmentry_offset != 0, "must be present"); |
2470 | |
2471 // This is always the final step that initializes a valid method handle: | |
2472 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2473 | |
2474 // There should be enough memory barriers on exit from native methods | |
2475 // to ensure that the MH is fully initialized to all threads before | |
2476 // Java code can publish it in global data structures. | |
2477 // But just in case, we use release_address_field_put. | |
2478 } | |
2479 | |
2480 /// MemberName accessors | |
2481 | |
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|
2482 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2483 assert(is_instance(mname), "wrong type"); |
2484 return mname->obj_field(_clazz_offset); | |
2485 } | |
2486 | |
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|
2487 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2488 assert(is_instance(mname), "wrong type"); |
2489 mname->obj_field_put(_clazz_offset, clazz); | |
2490 } | |
2491 | |
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|
2492 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2493 assert(is_instance(mname), "wrong type"); |
2494 return mname->obj_field(_name_offset); | |
2495 } | |
2496 | |
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|
2497 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2498 assert(is_instance(mname), "wrong type"); |
2499 mname->obj_field_put(_name_offset, name); | |
2500 } | |
2501 | |
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|
2502 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2503 assert(is_instance(mname), "wrong type"); |
2504 return mname->obj_field(_type_offset); | |
2505 } | |
2506 | |
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|
2507 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2508 assert(is_instance(mname), "wrong type"); |
2509 mname->obj_field_put(_type_offset, type); | |
2510 } | |
2511 | |
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|
2512 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2513 assert(is_instance(mname), "wrong type"); |
2514 return mname->int_field(_flags_offset); | |
2515 } | |
2516 | |
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2517 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2518 assert(is_instance(mname), "wrong type"); |
2519 mname->int_field_put(_flags_offset, flags); | |
2520 } | |
2521 | |
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|
2522 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2523 assert(is_instance(mname), "wrong type"); |
2524 return mname->obj_field(_vmtarget_offset); | |
2525 } | |
2526 | |
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|
2527 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2528 assert(is_instance(mname), "wrong type"); |
2529 mname->obj_field_put(_vmtarget_offset, ref); | |
2530 } | |
2531 | |
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2532 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2533 assert(is_instance(mname), "wrong type"); |
2534 return mname->int_field(_vmindex_offset); | |
2535 } | |
2536 | |
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|
2537 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2538 assert(is_instance(mname), "wrong type"); |
2539 mname->int_field_put(_vmindex_offset, index); | |
2540 } | |
2541 | |
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2542 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2543 assert(is_instance(mh), "MH only"); |
2544 return mh->obj_field(_vmtarget_offset); | |
2545 } | |
2546 | |
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2547 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2548 assert(is_instance(mh), "MH only"); |
2549 mh->obj_field_put(_vmtarget_offset, ref); | |
2550 } | |
2551 | |
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2552 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2553 assert(is_instance(mh), "DMH only"); |
2554 return mh->int_field(_vmindex_offset); | |
2555 } | |
2556 | |
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|
2557 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2558 assert(is_instance(mh), "DMH only"); |
2559 mh->int_field_put(_vmindex_offset, index); | |
2560 } | |
2561 | |
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|
2562 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2563 assert(is_instance(mh), "BMH only"); |
2564 return mh->int_field(_vmargslot_offset); | |
2565 } | |
2566 | |
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|
2567 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2568 assert(is_instance(mh), "BMH only"); |
2569 return mh->obj_field(_argument_offset); | |
2570 } | |
2571 | |
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|
2572 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2573 assert(is_instance(mh), "AMH only"); |
2574 return mh->int_field(_conversion_offset); | |
2575 } | |
2576 | |
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|
2577 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2578 assert(is_instance(mh), "AMH only"); |
2579 mh->int_field_put(_conversion_offset, conv); | |
2580 } | |
2581 | |
2582 | |
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|
2583 // Support for java_lang_invoke_MethodType |
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2584 |
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|
2585 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2586 int java_lang_invoke_MethodType::_ptypes_offset; |
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|
2587 int java_lang_invoke_MethodType::_form_offset; |
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|
2588 |
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|
2589 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2590 klassOop k = SystemDictionary::MethodType_klass(); |
2591 if (k != NULL) { | |
2592 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2593 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
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|
2594 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2595 } |
2596 } | |
2597 | |
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|
2598 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2599 st->print("("); |
2600 objArrayOop pts = ptypes(mt); | |
2601 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2602 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2603 } | |
2604 st->print(")"); | |
2605 java_lang_Class::print_signature(rtype(mt), st); | |
2606 } | |
2607 | |
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|
2608 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2609 ResourceMark rm; |
2610 stringStream buffer(128); | |
2611 print_signature(mt, &buffer); | |
2612 const char* sigstr = buffer.base(); | |
2613 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
2614 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2615 if (!intern_if_not_found) { |
3582bf76420e
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diff
changeset
|
2616 name = SymbolTable::probe(sigstr, siglen); |
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diff
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|
2617 } else { |
3582bf76420e
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diff
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|
2618 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
3582bf76420e
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diff
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|
2619 } |
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diff
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|
2620 return name; |
710 | 2621 } |
2622 | |
3785
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|
2623 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2624 if (rtype(mt1) != rtype(mt2)) |
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|
2625 return false; |
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|
2626 if (ptype_count(mt1) != ptype_count(mt2)) |
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|
2627 return false; |
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|
2628 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
ddd894528dbc
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|
2629 if (ptype(mt1, i) != ptype(mt2, i)) |
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|
2630 return false; |
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|
2631 } |
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|
2632 return true; |
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|
2633 } |
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|
2634 |
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|
2635 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2636 assert(is_instance(mt), "must be a MethodType"); |
2637 return mt->obj_field(_rtype_offset); | |
2638 } | |
2639 | |
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|
2640 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2641 assert(is_instance(mt), "must be a MethodType"); |
2642 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2643 } | |
2644 | |
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|
2645 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2646 assert(is_instance(mt), "must be a MethodType"); |
2647 return mt->obj_field(_form_offset); | |
2648 } | |
2649 | |
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|
2650 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2651 return ptypes(mt)->obj_at(idx); |
2652 } | |
2653 | |
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|
2654 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
1133
aa62b9388fce
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|
2655 return ptypes(mt)->length(); |
aa62b9388fce
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|
2656 } |
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|
2657 |
710 | 2658 |
2659 | |
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|
2660 // Support for java_lang_invoke_MethodTypeForm |
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|
2661 |
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|
2662 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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|
2663 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
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|
2664 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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|
2665 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
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|
2666 |
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|
2667 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2668 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2669 if (k != NULL) { | |
2670 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
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|
2671 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
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|
2672 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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|
2673 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
1793
d257356e35f0
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diff
changeset
|
2674 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
3938 | 2675 METHODTYPEFORM_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2676 } |
2677 } | |
2678 | |
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2679 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2680 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
3363
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2681 assert(_vmslots_offset > 0, ""); |
710 | 2682 return mtform->int_field(_vmslots_offset); |
2683 } | |
2684 | |
3363
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2685 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
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2686 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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|
2687 assert(_vmlayout_offset > 0, ""); |
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|
2688 return mtform->obj_field(_vmlayout_offset); |
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|
2689 } |
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|
2690 |
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|
2691 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
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|
2692 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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|
2693 oop previous = vmlayout(mtform); |
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|
2694 if (previous != NULL) { |
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diff
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|
2695 return previous; // someone else beat us to it |
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|
2696 } |
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|
2697 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
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|
2698 OrderAccess::storestore(); // make sure our copy is fully committed |
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|
2699 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
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|
2700 if (previous != NULL) { |
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|
2701 return previous; // someone else beat us to it |
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|
2702 } |
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|
2703 return cookie; |
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|
2704 } |
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|
2705 |
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|
2706 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2707 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2708 return mtform->obj_field(_erasedType_offset); | |
2709 } | |
2710 | |
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2711 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
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2712 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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jrose
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2713 return mtform->obj_field(_genericInvoker_offset); |
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|
2714 } |
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|
2715 |
710 | 2716 |
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2717 // Support for java_lang_invoke_CallSite |
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|
2718 |
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|
2719 int java_lang_invoke_CallSite::_target_offset; |
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|
2720 |
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2721 void java_lang_invoke_CallSite::compute_offsets() { |
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jrose
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|
2722 if (!EnableInvokeDynamic) return; |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
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949
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|
2723 klassOop k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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diff
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|
2724 if (k != NULL) { |
2357
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|
2725 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
2726 } |
3900
a32de5085326
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|
2727 |
a32de5085326
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|
2728 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
a32de5085326
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|
2729 // (For C2: keep this until we have throttling logic for uncommon traps.) |
a32de5085326
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diff
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|
2730 if (k != NULL) { |
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|
2731 instanceKlass* ik = instanceKlass::cast(k); |
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|
2732 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
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|
2733 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
3929
f94227b6117b
7090259: Fix hotspot sources to build with old compilers
kvn
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diff
changeset
|
2734 guarantee(m_normal != NULL && m_volatile != NULL, "must exist"); |
3900
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|
2735 m_normal->set_not_compilable_quietly(); |
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|
2736 m_volatile->set_not_compilable_quietly(); |
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|
2737 } |
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be93aad57795
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diff
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|
2738 } |
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|
2739 |
710 | 2740 |
0 | 2741 // Support for java_security_AccessControlContext |
2742 | |
2743 int java_security_AccessControlContext::_context_offset = 0; | |
2744 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2745 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2746 | |
2747 void java_security_AccessControlContext::compute_offsets() { | |
2748 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2749 fieldDescriptor fd; | |
2750 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2751 | |
2752 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2753 fatal("Invalid layout of java.security.AccessControlContext"); | |
2754 } | |
2755 _context_offset = fd.offset(); | |
2756 | |
2757 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2758 fatal("Invalid layout of java.security.AccessControlContext"); | |
2759 } | |
2760 _privilegedContext_offset = fd.offset(); | |
2761 | |
2762 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2763 fatal("Invalid layout of java.security.AccessControlContext"); | |
2764 } | |
2765 _isPrivileged_offset = fd.offset(); | |
2766 } | |
2767 | |
2768 | |
2769 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2770 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2771 // Ensure klass is initialized | |
2772 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2773 // Allocate result | |
2774 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2775 // Fill in values | |
2776 result->obj_field_put(_context_offset, context()); | |
2777 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2778 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2779 return result; | |
2780 } | |
2781 | |
2782 | |
2783 // Support for java_lang_ClassLoader | |
3938 | 2784 bool java_lang_ClassLoader::offsets_computed = false; |
2785 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
2786 | |
2787 void java_lang_ClassLoader::compute_offsets() { | |
2788 assert(!offsets_computed, "offsets should be initialized only once"); | |
2789 offsets_computed = true; | |
2790 | |
2791 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
2792 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
2793 compute_optional_offset(parallelCapable_offset, | |
2794 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
2795 } | |
0 | 2796 |
2797 oop java_lang_ClassLoader::parent(oop loader) { | |
2798 assert(loader->is_oop(), "loader must be oop"); | |
2799 return loader->obj_field(parent_offset); | |
2800 } | |
2801 | |
2802 | |
3938 | 2803 // For class loader classes, parallelCapable defined |
2804 // based on non-null field | |
2805 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
2806 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
2807 if (!JDK_Version::is_gte_jdk17x_version() | |
2808 || parallelCapable_offset == -1) { | |
2809 // Default for backward compatibility is false | |
2810 return false; | |
2811 } | |
2812 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
2813 } | |
2814 | |
0 | 2815 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
2816 // Fix for 4474172; see evaluation for more details | |
2817 loader = non_reflection_class_loader(loader); | |
2818 | |
2819 oop cl = SystemDictionary::java_system_loader(); | |
2820 while(cl != NULL) { | |
2821 if (cl == loader) return true; | |
2822 cl = parent(cl); | |
2823 } | |
2824 return false; | |
2825 } | |
2826 | |
2827 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2828 if (loader != NULL) { | |
2829 // See whether this is one of the class loaders associated with | |
2830 // the generated bytecodes for reflection, and if so, "magically" | |
2831 // delegate to its parent to prevent class loading from occurring | |
2832 // in places where applications using reflection didn't expect it. | |
1142 | 2833 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2834 // This might be null in non-1.4 JDKs |
2835 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2836 return parent(loader); | |
2837 } | |
2838 } | |
2839 return loader; | |
2840 } | |
2841 | |
2842 | |
2843 // Support for java_lang_System | |
2844 int java_lang_System::in_offset_in_bytes() { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2845 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2846 } |
2847 | |
2848 | |
2849 int java_lang_System::out_offset_in_bytes() { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2850 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2851 } |
2852 | |
2853 | |
2854 int java_lang_System::err_offset_in_bytes() { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2855 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2856 } |
2857 | |
2858 | |
2859 | |
3938 | 2860 int java_lang_Class::_klass_offset; |
2861 int java_lang_Class::_array_klass_offset; | |
2862 int java_lang_Class::_resolved_constructor_offset; | |
2863 int java_lang_Class::_oop_size_offset; | |
2864 int java_lang_Class::_static_oop_field_count_offset; | |
0 | 2865 int java_lang_Throwable::backtrace_offset; |
2866 int java_lang_Throwable::detailMessage_offset; | |
2867 int java_lang_Throwable::cause_offset; | |
2868 int java_lang_Throwable::stackTrace_offset; | |
3820
0b80db433fcb
7046490: Preallocated OOME objects should obey Throwable stack trace protocol
dholmes
parents:
3795
diff
changeset
|
2869 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 2870 int java_lang_reflect_AccessibleObject::override_offset; |
2871 int java_lang_reflect_Method::clazz_offset; | |
2872 int java_lang_reflect_Method::name_offset; | |
2873 int java_lang_reflect_Method::returnType_offset; | |
2874 int java_lang_reflect_Method::parameterTypes_offset; | |
2875 int java_lang_reflect_Method::exceptionTypes_offset; | |
2876 int java_lang_reflect_Method::slot_offset; | |
2877 int java_lang_reflect_Method::modifiers_offset; | |
2878 int java_lang_reflect_Method::signature_offset; | |
2879 int java_lang_reflect_Method::annotations_offset; | |
2880 int java_lang_reflect_Method::parameter_annotations_offset; | |
2881 int java_lang_reflect_Method::annotation_default_offset; | |
2882 int java_lang_reflect_Constructor::clazz_offset; | |
2883 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2884 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2885 int java_lang_reflect_Constructor::slot_offset; | |
2886 int java_lang_reflect_Constructor::modifiers_offset; | |
2887 int java_lang_reflect_Constructor::signature_offset; | |
2888 int java_lang_reflect_Constructor::annotations_offset; | |
2889 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2890 int java_lang_reflect_Field::clazz_offset; | |
2891 int java_lang_reflect_Field::name_offset; | |
2892 int java_lang_reflect_Field::type_offset; | |
2893 int java_lang_reflect_Field::slot_offset; | |
2894 int java_lang_reflect_Field::modifiers_offset; | |
2895 int java_lang_reflect_Field::signature_offset; | |
2896 int java_lang_reflect_Field::annotations_offset; | |
2897 int java_lang_boxing_object::value_offset; | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2898 int java_lang_boxing_object::long_value_offset; |
0 | 2899 int java_lang_ref_Reference::referent_offset; |
2900 int java_lang_ref_Reference::queue_offset; | |
2901 int java_lang_ref_Reference::next_offset; | |
2902 int java_lang_ref_Reference::discovered_offset; | |
2903 int java_lang_ref_Reference::static_lock_offset; | |
2904 int java_lang_ref_Reference::static_pending_offset; | |
2905 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2906 int java_lang_ref_SoftReference::timestamp_offset; | |
2907 int java_lang_ref_SoftReference::static_clock_offset; | |
2908 int java_lang_ClassLoader::parent_offset; | |
2909 int java_lang_System::static_in_offset; | |
2910 int java_lang_System::static_out_offset; | |
2911 int java_lang_System::static_err_offset; | |
2912 int java_lang_StackTraceElement::declaringClass_offset; | |
2913 int java_lang_StackTraceElement::methodName_offset; | |
2914 int java_lang_StackTraceElement::fileName_offset; | |
2915 int java_lang_StackTraceElement::lineNumber_offset; | |
2916 int java_lang_AssertionStatusDirectives::classes_offset; | |
2917 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2918 int java_lang_AssertionStatusDirectives::packages_offset; | |
2919 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2920 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2921 int java_nio_Buffer::_limit_offset; | |
2922 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2923 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2924 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2925 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2926 | |
2927 | |
2928 // Support for java_lang_StackTraceElement | |
2929 | |
2930 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2931 element->obj_field_put(fileName_offset, value); | |
2932 } | |
2933 | |
2934 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2935 element->obj_field_put(declaringClass_offset, value); | |
2936 } | |
2937 | |
2938 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2939 element->obj_field_put(methodName_offset, value); | |
2940 } | |
2941 | |
2942 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2943 element->int_field_put(lineNumber_offset, value); | |
2944 } | |
2945 | |
2946 | |
2947 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2948 | |
2949 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2950 o->obj_field_put(classes_offset, val); | |
2951 } | |
2952 | |
2953 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2954 o->obj_field_put(classEnabled_offset, val); | |
2955 } | |
2956 | |
2957 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2958 o->obj_field_put(packages_offset, val); | |
2959 } | |
2960 | |
2961 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2962 o->obj_field_put(packageEnabled_offset, val); | |
2963 } | |
2964 | |
2965 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2966 o->bool_field_put(deflt_offset, val); | |
2967 } | |
2968 | |
2969 | |
2970 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2971 int java_nio_Buffer::limit_offset() { | |
2972 return _limit_offset; | |
2973 } | |
2974 | |
2975 | |
2976 void java_nio_Buffer::compute_offsets() { | |
3938 | 2977 klassOop k = SystemDictionary::nio_Buffer_klass(); |
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parents:
113
diff
changeset
|
2978 assert(k != NULL, "must be loaded in 1.4+"); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
changeset
|
2979 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2980 } |
2981 | |
2982 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2983 int sun_misc_AtomicLongCSImpl::value_offset() { | |
3938 | 2984 assert(SystemDictionary::AtomicLongCSImpl_klass() != NULL, "can't call this"); |
0 | 2985 return _value_offset; |
2986 } | |
2987 | |
2988 | |
2989 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
3938 | 2990 klassOop k = SystemDictionary::AtomicLongCSImpl_klass(); |
0 | 2991 // If this class is not present, its value field offset won't be referenced. |
2992 if (k != NULL) { | |
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2993 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2994 } |
2995 } | |
2996 | |
2997 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2998 if (_owner_offset != 0) return; | |
2999 | |
3000 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
3001 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
3002 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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3003 compute_offset(_owner_offset, k, |
0 | 3004 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
3005 } | |
3006 | |
3007 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
3008 assert(_owner_offset != 0, "Must be initialized"); | |
3009 return obj->obj_field(_owner_offset); | |
3010 } | |
3011 | |
3012 // Compute hard-coded offsets | |
3013 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
3014 // are not available to determine the offset_of_static_fields. | |
3015 void JavaClasses::compute_hard_coded_offsets() { | |
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3016 const int x = heapOopSize; |
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3017 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 3018 |
3019 // Throwable Class | |
3020 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3021 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3022 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3023 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
3820
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3024 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3025 |
3026 // java_lang_boxing_object | |
165
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3027 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3028 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3029 |
3030 // java_lang_ref_Reference: | |
3031 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3032 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3033 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3034 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3035 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3036 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3037 // Artificial fields for java_lang_ref_Reference | |
3038 // The first field is for the discovered field added in 1.4 | |
3039 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3040 | |
3041 // java_lang_ref_SoftReference Class | |
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3042 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3043 // Don't multiply static fields because they are always in wordSize units |
3044 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3045 | |
3046 // java_lang_ClassLoader | |
3047 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3048 | |
3049 // java_lang_System | |
3050 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3051 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3052 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
3053 | |
3054 // java_lang_StackTraceElement | |
3055 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3056 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3057 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3058 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3059 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3060 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3061 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3062 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3063 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3064 | |
3065 } | |
3066 | |
3067 | |
3068 // Compute non-hard-coded field offsets of all the classes in this file | |
3069 void JavaClasses::compute_offsets() { | |
3938 | 3070 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3071 java_lang_ClassLoader::compute_offsets(); | |
0 | 3072 java_lang_Thread::compute_offsets(); |
3073 java_lang_ThreadGroup::compute_offsets(); | |
2416
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3074 if (EnableInvokeDynamic) { |
2357
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3075 java_lang_invoke_MethodHandle::compute_offsets(); |
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3076 java_lang_invoke_MemberName::compute_offsets(); |
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3077 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
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3078 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
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3079 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
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3080 java_lang_invoke_MethodType::compute_offsets(); |
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3081 java_lang_invoke_MethodTypeForm::compute_offsets(); |
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3082 java_lang_invoke_CallSite::compute_offsets(); |
3905
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3083 java_lang_invoke_CountingMethodHandle::compute_offsets(); |
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3084 } |
0 | 3085 java_security_AccessControlContext::compute_offsets(); |
3086 // Initialize reflection classes. The layouts of these classes | |
3087 // changed with the new reflection implementation in JDK 1.4, and | |
3088 // since the Universe doesn't know what JDK version it is until this | |
3089 // point we defer computation of these offsets until now. | |
3090 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3091 java_lang_reflect_Method::compute_offsets(); | |
3092 java_lang_reflect_Constructor::compute_offsets(); | |
3093 java_lang_reflect_Field::compute_offsets(); | |
3094 if (JDK_Version::is_gte_jdk14x_version()) { | |
3095 java_nio_Buffer::compute_offsets(); | |
3096 } | |
3097 if (JDK_Version::is_gte_jdk15x_version()) { | |
3098 sun_reflect_ConstantPool::compute_offsets(); | |
3099 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3100 } | |
3101 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 3102 |
3103 // generated interpreter code wants to know about the offsets we just computed: | |
3104 AbstractAssembler::update_delayed_values(); | |
0 | 3105 } |
3106 | |
3107 #ifndef PRODUCT | |
3108 | |
3109 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3110 // against changes in the class files | |
3111 | |
3112 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3113 EXCEPTION_MARK; | |
3114 fieldDescriptor fd; | |
2177
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3115 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3116 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3117 instanceKlassHandle h_klass (THREAD, k); | |
2177
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3118 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3119 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3120 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3121 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3122 return false; | |
3123 } | |
3124 if (fd.is_static()) { | |
3125 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3126 return false; | |
3127 } | |
3128 if (fd.offset() == hardcoded_offset ) { | |
3129 return true; | |
3130 } else { | |
3131 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3132 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3133 return false; | |
3134 } | |
3135 } | |
3136 | |
3137 | |
3138 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3139 EXCEPTION_MARK; | |
3140 fieldDescriptor fd; | |
2177
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diff
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|
3141 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3142 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3143 instanceKlassHandle h_klass (THREAD, k); | |
2177
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3144 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3145 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3146 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3147 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3148 return false; | |
3149 } | |
3150 if (!fd.is_static()) { | |
3151 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3152 return false; | |
3153 } | |
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|
3154 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
0 | 3155 return true; |
3156 } else { | |
2376
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|
3157 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 | 3158 return false; |
3159 } | |
3160 } | |
3161 | |
3162 | |
132
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3163 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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3164 EXCEPTION_MARK; |
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3165 fieldDescriptor fd; |
2177
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3166 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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3167 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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3168 instanceKlassHandle h_klass (THREAD, k); |
2177
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3169 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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|
3170 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3171 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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3172 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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3173 return false; |
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|
3174 } |
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|
3175 if (!fd.is_static() || !fd.has_initial_value()) { |
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3176 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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3177 return false; |
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|
3178 } |
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3179 if (!fd.initial_value_tag().is_int()) { |
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3180 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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3181 return false; |
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|
3182 } |
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|
3183 jint field_value = fd.int_initial_value(); |
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3184 if (field_value == hardcoded_constant) { |
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|
3185 return true; |
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|
3186 } else { |
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|
3187 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); |
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3188 return false; |
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|
3189 } |
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|
3190 } |
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3191 |
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3192 |
0 | 3193 // Check the hard-coded field offsets of all the classes in this file |
3194 | |
3195 void JavaClasses::check_offsets() { | |
3196 bool valid = true; | |
3197 | |
3198 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3199 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3200 | |
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3201 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3202 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3203 |
0 | 3204 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3205 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3206 | |
132
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3207 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3208 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3209 |
0 | 3210 // java.lang.String |
3211 | |
3212 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
6057 | 3213 if (java_lang_String::has_offset_field()) { |
3214 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3215 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3216 } | |
3217 if (java_lang_String::has_hash_field()) { | |
3218 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3219 } | |
0 | 3220 |
3221 // java.lang.Class | |
3222 | |
3223 // Fake fields | |
3224 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3225 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3226 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3227 | |
3228 // java.lang.Throwable | |
3229 | |
3230 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3231 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3232 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3233 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3234 | |
3235 // Boxed primitive objects (java_lang_boxing_object) | |
3236 | |
3237 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3238 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3239 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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diff
changeset
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3240 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3241 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3242 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3243 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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parents:
132
diff
changeset
|
3244 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3245 |
3246 // java.lang.ClassLoader | |
3247 | |
3248 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3249 | |
3250 // java.lang.System | |
3251 | |
3252 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3253 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3254 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3255 | |
3256 // java.lang.StackTraceElement | |
3257 | |
3258 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3259 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3260 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3261 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3262 | |
3263 // java.lang.ref.Reference | |
3264 | |
3265 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3266 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3267 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3268 // Fake field | |
3269 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3270 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3271 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3272 | |
3273 // java.lang.ref.SoftReference | |
3274 | |
3275 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3276 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3277 | |
3278 // java.lang.AssertionStatusDirectives | |
3279 // | |
3280 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3281 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3282 // into merlin "for some time." Without it, the vm will fail with early | |
3283 // merlin builds. | |
3284 | |
3285 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3286 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3287 const char* sig = "[Ljava/lang/String;"; | |
3288 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3289 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3290 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3291 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3292 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3293 } | |
3294 | |
3295 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3296 } | |
3297 | |
3298 #endif // PRODUCT | |
3299 | |
3938 | 3300 int InjectedField::compute_offset() { |
3301 klassOop klass_oop = klass(); | |
3302 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
3303 if (!may_be_java && !fs.access_flags().is_internal()) { | |
3304 // Only look at injected fields | |
3305 continue; | |
3306 } | |
3307 if (fs.name() == name() && fs.signature() == signature()) { | |
3308 return fs.offset(); | |
3309 } | |
3310 } | |
3311 ResourceMark rm; | |
3312 tty->print_cr("Invalid layout of %s at %s", instanceKlass::cast(klass_oop)->external_name(), name()->as_C_string()); | |
3313 fatal("Invalid layout of preloaded class"); | |
3314 return -1; | |
3315 } | |
3316 | |
0 | 3317 void javaClasses_init() { |
3318 JavaClasses::compute_offsets(); | |
3319 JavaClasses::check_offsets(); | |
3320 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3321 } |