|
1 /* |
|
2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
|
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 * |
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
20 * or visit www.oracle.com if you need additional information or have any |
|
21 * questions. |
|
22 * |
|
23 */ |
|
24 |
|
25 #include "precompiled.hpp" |
|
26 #include "classfile/altHashing.hpp" |
|
27 #include "classfile/classLoaderData.inline.hpp" |
|
28 #include "classfile/javaClasses.inline.hpp" |
|
29 #include "classfile/moduleEntry.hpp" |
|
30 #include "classfile/stringTable.hpp" |
|
31 #include "classfile/vmSymbols.hpp" |
|
32 #include "code/debugInfo.hpp" |
|
33 #include "code/dependencyContext.hpp" |
|
34 #include "code/pcDesc.hpp" |
|
35 #include "interpreter/interpreter.hpp" |
|
36 #include "memory/oopFactory.hpp" |
|
37 #include "memory/resourceArea.hpp" |
|
38 #include "memory/universe.inline.hpp" |
|
39 #include "oops/fieldStreams.hpp" |
|
40 #include "oops/instanceKlass.hpp" |
|
41 #include "oops/instanceMirrorKlass.hpp" |
|
42 #include "oops/klass.hpp" |
|
43 #include "oops/method.hpp" |
|
44 #include "oops/objArrayOop.inline.hpp" |
|
45 #include "oops/oop.inline.hpp" |
|
46 #include "oops/symbol.hpp" |
|
47 #include "oops/typeArrayOop.hpp" |
|
48 #include "prims/resolvedMethodTable.hpp" |
|
49 #include "runtime/fieldDescriptor.hpp" |
|
50 #include "runtime/handles.inline.hpp" |
|
51 #include "runtime/interfaceSupport.hpp" |
|
52 #include "runtime/java.hpp" |
|
53 #include "runtime/javaCalls.hpp" |
|
54 #include "runtime/safepoint.hpp" |
|
55 #include "runtime/thread.inline.hpp" |
|
56 #include "runtime/vframe.hpp" |
|
57 #include "utilities/align.hpp" |
|
58 #include "utilities/preserveException.hpp" |
|
59 |
|
60 #if INCLUDE_JVMCI |
|
61 #include "jvmci/jvmciJavaClasses.hpp" |
|
62 #endif |
|
63 |
|
64 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
|
65 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); |
|
66 |
|
67 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ |
|
68 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, |
|
69 |
|
70 InjectedField JavaClasses::_injected_fields[] = { |
|
71 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) |
|
72 }; |
|
73 |
|
74 int JavaClasses::compute_injected_offset(InjectedFieldID id) { |
|
75 return _injected_fields[id].compute_offset(); |
|
76 } |
|
77 |
|
78 |
|
79 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { |
|
80 *field_count = 0; |
|
81 |
|
82 vmSymbols::SID sid = vmSymbols::find_sid(class_name); |
|
83 if (sid == vmSymbols::NO_SID) { |
|
84 // Only well known classes can inject fields |
|
85 return NULL; |
|
86 } |
|
87 |
|
88 int count = 0; |
|
89 int start = -1; |
|
90 |
|
91 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ |
|
92 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ |
|
93 count++; \ |
|
94 if (start == -1) start = klass##_##name##_enum; \ |
|
95 } |
|
96 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); |
|
97 #undef LOOKUP_INJECTED_FIELD |
|
98 |
|
99 if (start != -1) { |
|
100 *field_count = count; |
|
101 return _injected_fields + start; |
|
102 } |
|
103 return NULL; |
|
104 } |
|
105 |
|
106 |
|
107 static bool find_field(InstanceKlass* ik, |
|
108 Symbol* name_symbol, Symbol* signature_symbol, |
|
109 fieldDescriptor* fd, |
|
110 bool is_static = false, bool allow_super = false) { |
|
111 if (allow_super || is_static) { |
|
112 return ik->find_field(name_symbol, signature_symbol, is_static, fd) != NULL; |
|
113 } else { |
|
114 return ik->find_local_field(name_symbol, signature_symbol, fd); |
|
115 } |
|
116 } |
|
117 |
|
118 // Helpful routine for computing field offsets at run time rather than hardcoding them |
|
119 static void |
|
120 compute_offset(int &dest_offset, |
|
121 Klass* klass, Symbol* name_symbol, Symbol* signature_symbol, |
|
122 bool is_static = false, bool allow_super = false) { |
|
123 fieldDescriptor fd; |
|
124 InstanceKlass* ik = InstanceKlass::cast(klass); |
|
125 if (!find_field(ik, name_symbol, signature_symbol, &fd, is_static, allow_super)) { |
|
126 ResourceMark rm; |
|
127 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
|
128 #ifndef PRODUCT |
|
129 ik->print(); |
|
130 tty->print_cr("all fields:"); |
|
131 for (AllFieldStream fs(ik); !fs.done(); fs.next()) { |
|
132 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
|
133 } |
|
134 #endif //PRODUCT |
|
135 vm_exit_during_initialization("Invalid layout of preloaded class: use -Xlog:class+load=info to see the origin of the problem class"); |
|
136 } |
|
137 dest_offset = fd.offset(); |
|
138 } |
|
139 |
|
140 // Same as above but for "optional" offsets that might not be present in certain JDK versions |
|
141 static void |
|
142 compute_optional_offset(int& dest_offset, |
|
143 Klass* klass, Symbol* name_symbol, Symbol* signature_symbol, |
|
144 bool allow_super = false) { |
|
145 fieldDescriptor fd; |
|
146 InstanceKlass* ik = InstanceKlass::cast(klass); |
|
147 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
|
148 dest_offset = fd.offset(); |
|
149 } |
|
150 } |
|
151 |
|
152 |
|
153 int java_lang_String::value_offset = 0; |
|
154 int java_lang_String::hash_offset = 0; |
|
155 int java_lang_String::coder_offset = 0; |
|
156 |
|
157 bool java_lang_String::initialized = false; |
|
158 |
|
159 bool java_lang_String::is_instance(oop obj) { |
|
160 return is_instance_inlined(obj); |
|
161 } |
|
162 |
|
163 void java_lang_String::compute_offsets() { |
|
164 assert(!initialized, "offsets should be initialized only once"); |
|
165 |
|
166 Klass* k = SystemDictionary::String_klass(); |
|
167 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::byte_array_signature()); |
|
168 compute_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); |
|
169 compute_offset(coder_offset, k, vmSymbols::coder_name(), vmSymbols::byte_signature()); |
|
170 |
|
171 initialized = true; |
|
172 } |
|
173 |
|
174 class CompactStringsFixup : public FieldClosure { |
|
175 private: |
|
176 bool _value; |
|
177 |
|
178 public: |
|
179 CompactStringsFixup(bool value) : _value(value) {} |
|
180 |
|
181 void do_field(fieldDescriptor* fd) { |
|
182 if (fd->name() == vmSymbols::compact_strings_name()) { |
|
183 oop mirror = fd->field_holder()->java_mirror(); |
|
184 assert(fd->field_holder() == SystemDictionary::String_klass(), "Should be String"); |
|
185 assert(mirror != NULL, "String must have mirror already"); |
|
186 mirror->bool_field_put(fd->offset(), _value); |
|
187 } |
|
188 } |
|
189 }; |
|
190 |
|
191 void java_lang_String::set_compact_strings(bool value) { |
|
192 CompactStringsFixup fix(value); |
|
193 InstanceKlass::cast(SystemDictionary::String_klass())->do_local_static_fields(&fix); |
|
194 } |
|
195 |
|
196 Handle java_lang_String::basic_create(int length, bool is_latin1, TRAPS) { |
|
197 assert(initialized, "Must be initialized"); |
|
198 assert(CompactStrings || !is_latin1, "Must be UTF16 without CompactStrings"); |
|
199 |
|
200 // Create the String object first, so there's a chance that the String |
|
201 // and the char array it points to end up in the same cache line. |
|
202 oop obj; |
|
203 obj = SystemDictionary::String_klass()->allocate_instance(CHECK_NH); |
|
204 |
|
205 // Create the char array. The String object must be handlized here |
|
206 // because GC can happen as a result of the allocation attempt. |
|
207 Handle h_obj(THREAD, obj); |
|
208 int arr_length = is_latin1 ? length : length << 1; // 2 bytes per UTF16. |
|
209 typeArrayOop buffer = oopFactory::new_byteArray(arr_length, CHECK_NH);; |
|
210 |
|
211 // Point the String at the char array |
|
212 obj = h_obj(); |
|
213 set_value(obj, buffer); |
|
214 // No need to zero the offset, allocation zero'ed the entire String object |
|
215 set_coder(obj, is_latin1 ? CODER_LATIN1 : CODER_UTF16); |
|
216 return h_obj; |
|
217 } |
|
218 |
|
219 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { |
|
220 bool is_latin1 = CompactStrings && UNICODE::is_latin1(unicode, length); |
|
221 Handle h_obj = basic_create(length, is_latin1, CHECK_NH); |
|
222 typeArrayOop buffer = value(h_obj()); |
|
223 assert(TypeArrayKlass::cast(buffer->klass())->element_type() == T_BYTE, "only byte[]"); |
|
224 if (is_latin1) { |
|
225 for (int index = 0; index < length; index++) { |
|
226 buffer->byte_at_put(index, (jbyte)unicode[index]); |
|
227 } |
|
228 } else { |
|
229 for (int index = 0; index < length; index++) { |
|
230 buffer->char_at_put(index, unicode[index]); |
|
231 } |
|
232 } |
|
233 |
|
234 #ifdef ASSERT |
|
235 { |
|
236 ResourceMark rm; |
|
237 char* expected = UNICODE::as_utf8(unicode, length); |
|
238 char* actual = as_utf8_string(h_obj()); |
|
239 if (strcmp(expected, actual) != 0) { |
|
240 tty->print_cr("Unicode conversion failure: %s --> %s", expected, actual); |
|
241 ShouldNotReachHere(); |
|
242 } |
|
243 } |
|
244 #endif |
|
245 |
|
246 return h_obj; |
|
247 } |
|
248 |
|
249 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { |
|
250 Handle h_obj = create_from_unicode(unicode, length, CHECK_0); |
|
251 return h_obj(); |
|
252 } |
|
253 |
|
254 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { |
|
255 if (utf8_str == NULL) { |
|
256 return Handle(); |
|
257 } |
|
258 bool has_multibyte, is_latin1; |
|
259 int length = UTF8::unicode_length(utf8_str, is_latin1, has_multibyte); |
|
260 if (!CompactStrings) { |
|
261 has_multibyte = true; |
|
262 is_latin1 = false; |
|
263 } |
|
264 |
|
265 Handle h_obj = basic_create(length, is_latin1, CHECK_NH); |
|
266 if (length > 0) { |
|
267 if (!has_multibyte) { |
|
268 strncpy((char*)value(h_obj())->byte_at_addr(0), utf8_str, length); |
|
269 } else if (is_latin1) { |
|
270 UTF8::convert_to_unicode(utf8_str, value(h_obj())->byte_at_addr(0), length); |
|
271 } else { |
|
272 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); |
|
273 } |
|
274 } |
|
275 |
|
276 #ifdef ASSERT |
|
277 // This check is too strict because the input string is not necessarily valid UTF8. |
|
278 // For example, it may be created with arbitrary content via jni_NewStringUTF. |
|
279 /* |
|
280 { |
|
281 ResourceMark rm; |
|
282 const char* expected = utf8_str; |
|
283 char* actual = as_utf8_string(h_obj()); |
|
284 if (strcmp(expected, actual) != 0) { |
|
285 tty->print_cr("String conversion failure: %s --> %s", expected, actual); |
|
286 ShouldNotReachHere(); |
|
287 } |
|
288 } |
|
289 */ |
|
290 #endif |
|
291 |
|
292 return h_obj; |
|
293 } |
|
294 |
|
295 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { |
|
296 Handle h_obj = create_from_str(utf8_str, CHECK_0); |
|
297 return h_obj(); |
|
298 } |
|
299 |
|
300 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
|
301 const char* utf8_str = (char*)symbol->bytes(); |
|
302 int utf8_len = symbol->utf8_length(); |
|
303 |
|
304 bool has_multibyte, is_latin1; |
|
305 int length = UTF8::unicode_length(utf8_str, utf8_len, is_latin1, has_multibyte); |
|
306 if (!CompactStrings) { |
|
307 has_multibyte = true; |
|
308 is_latin1 = false; |
|
309 } |
|
310 |
|
311 Handle h_obj = basic_create(length, is_latin1, CHECK_NH); |
|
312 if (length > 0) { |
|
313 if (!has_multibyte) { |
|
314 strncpy((char*)value(h_obj())->byte_at_addr(0), utf8_str, length); |
|
315 } else if (is_latin1) { |
|
316 UTF8::convert_to_unicode(utf8_str, value(h_obj())->byte_at_addr(0), length); |
|
317 } else { |
|
318 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); |
|
319 } |
|
320 } |
|
321 |
|
322 #ifdef ASSERT |
|
323 { |
|
324 ResourceMark rm; |
|
325 const char* expected = symbol->as_utf8(); |
|
326 char* actual = as_utf8_string(h_obj()); |
|
327 if (strncmp(expected, actual, utf8_len) != 0) { |
|
328 tty->print_cr("Symbol conversion failure: %s --> %s", expected, actual); |
|
329 ShouldNotReachHere(); |
|
330 } |
|
331 } |
|
332 #endif |
|
333 |
|
334 return h_obj; |
|
335 } |
|
336 |
|
337 // Converts a C string to a Java String based on current encoding |
|
338 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { |
|
339 assert(str != NULL, "bad arguments"); |
|
340 |
|
341 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); |
|
342 static to_java_string_fn_t _to_java_string_fn = NULL; |
|
343 |
|
344 if (_to_java_string_fn == NULL) { |
|
345 void *lib_handle = os::native_java_library(); |
|
346 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
|
347 if (_to_java_string_fn == NULL) { |
|
348 fatal("NewStringPlatform missing"); |
|
349 } |
|
350 } |
|
351 |
|
352 jstring js = NULL; |
|
353 { JavaThread* thread = (JavaThread*)THREAD; |
|
354 assert(thread->is_Java_thread(), "must be java thread"); |
|
355 HandleMark hm(thread); |
|
356 ThreadToNativeFromVM ttn(thread); |
|
357 js = (_to_java_string_fn)(thread->jni_environment(), str); |
|
358 } |
|
359 return Handle(THREAD, JNIHandles::resolve(js)); |
|
360 } |
|
361 |
|
362 // Converts a Java String to a native C string that can be used for |
|
363 // native OS calls. |
|
364 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
|
365 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
|
366 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
|
367 |
|
368 if (_to_platform_string_fn == NULL) { |
|
369 void *lib_handle = os::native_java_library(); |
|
370 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
|
371 if (_to_platform_string_fn == NULL) { |
|
372 fatal("GetStringPlatformChars missing"); |
|
373 } |
|
374 } |
|
375 |
|
376 char *native_platform_string; |
|
377 { JavaThread* thread = (JavaThread*)THREAD; |
|
378 assert(thread->is_Java_thread(), "must be java thread"); |
|
379 JNIEnv *env = thread->jni_environment(); |
|
380 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
|
381 bool is_copy; |
|
382 HandleMark hm(thread); |
|
383 ThreadToNativeFromVM ttn(thread); |
|
384 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
|
385 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
|
386 JNIHandles::destroy_local(js); |
|
387 } |
|
388 return native_platform_string; |
|
389 } |
|
390 |
|
391 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
|
392 oop obj = java_string(); |
|
393 // Typical usage is to convert all '/' to '.' in string. |
|
394 typeArrayOop value = java_lang_String::value(obj); |
|
395 int length = java_lang_String::length(obj); |
|
396 bool is_latin1 = java_lang_String::is_latin1(obj); |
|
397 |
|
398 // First check if any from_char exist |
|
399 int index; // Declared outside, used later |
|
400 for (index = 0; index < length; index++) { |
|
401 jchar c = !is_latin1 ? value->char_at(index) : |
|
402 ((jchar) value->byte_at(index)) & 0xff; |
|
403 if (c == from_char) { |
|
404 break; |
|
405 } |
|
406 } |
|
407 if (index == length) { |
|
408 // No from_char, so do not copy. |
|
409 return java_string; |
|
410 } |
|
411 |
|
412 // Check if result string will be latin1 |
|
413 bool to_is_latin1 = false; |
|
414 |
|
415 // Replacement char must be latin1 |
|
416 if (CompactStrings && UNICODE::is_latin1(to_char)) { |
|
417 if (is_latin1) { |
|
418 // Source string is latin1 as well |
|
419 to_is_latin1 = true; |
|
420 } else if (!UNICODE::is_latin1(from_char)) { |
|
421 // We are replacing an UTF16 char. Scan string to |
|
422 // check if result can be latin1 encoded. |
|
423 to_is_latin1 = true; |
|
424 for (index = 0; index < length; index++) { |
|
425 jchar c = value->char_at(index); |
|
426 if (c != from_char && !UNICODE::is_latin1(c)) { |
|
427 to_is_latin1 = false; |
|
428 break; |
|
429 } |
|
430 } |
|
431 } |
|
432 } |
|
433 |
|
434 // Create new UNICODE (or byte) buffer. Must handlize value because GC |
|
435 // may happen during String and char array creation. |
|
436 typeArrayHandle h_value(THREAD, value); |
|
437 Handle string = basic_create(length, to_is_latin1, CHECK_NH); |
|
438 typeArrayOop from_buffer = h_value(); |
|
439 typeArrayOop to_buffer = java_lang_String::value(string()); |
|
440 |
|
441 // Copy contents |
|
442 for (index = 0; index < length; index++) { |
|
443 jchar c = (!is_latin1) ? from_buffer->char_at(index) : |
|
444 ((jchar) from_buffer->byte_at(index)) & 0xff; |
|
445 if (c == from_char) { |
|
446 c = to_char; |
|
447 } |
|
448 if (!to_is_latin1) { |
|
449 to_buffer->char_at_put(index, c); |
|
450 } else { |
|
451 to_buffer->byte_at_put(index, (jbyte) c); |
|
452 } |
|
453 } |
|
454 return string; |
|
455 } |
|
456 |
|
457 jchar* java_lang_String::as_unicode_string(oop java_string, int& length, TRAPS) { |
|
458 typeArrayOop value = java_lang_String::value(java_string); |
|
459 length = java_lang_String::length(java_string); |
|
460 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
461 |
|
462 jchar* result = NEW_RESOURCE_ARRAY_RETURN_NULL(jchar, length); |
|
463 if (result != NULL) { |
|
464 if (!is_latin1) { |
|
465 for (int index = 0; index < length; index++) { |
|
466 result[index] = value->char_at(index); |
|
467 } |
|
468 } else { |
|
469 for (int index = 0; index < length; index++) { |
|
470 result[index] = ((jchar) value->byte_at(index)) & 0xff; |
|
471 } |
|
472 } |
|
473 } else { |
|
474 THROW_MSG_0(vmSymbols::java_lang_OutOfMemoryError(), "could not allocate Unicode string"); |
|
475 } |
|
476 return result; |
|
477 } |
|
478 |
|
479 unsigned int java_lang_String::hash_code(oop java_string) { |
|
480 int length = java_lang_String::length(java_string); |
|
481 // Zero length string will hash to zero with String.hashCode() function. |
|
482 if (length == 0) return 0; |
|
483 |
|
484 typeArrayOop value = java_lang_String::value(java_string); |
|
485 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
486 |
|
487 if (is_latin1) { |
|
488 return java_lang_String::hash_code(value->byte_at_addr(0), length); |
|
489 } else { |
|
490 return java_lang_String::hash_code(value->char_at_addr(0), length); |
|
491 } |
|
492 } |
|
493 |
|
494 char* java_lang_String::as_quoted_ascii(oop java_string) { |
|
495 typeArrayOop value = java_lang_String::value(java_string); |
|
496 int length = java_lang_String::length(java_string); |
|
497 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
498 |
|
499 if (length == 0) return NULL; |
|
500 |
|
501 char* result; |
|
502 int result_length; |
|
503 if (!is_latin1) { |
|
504 jchar* base = value->char_at_addr(0); |
|
505 result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
|
506 result = NEW_RESOURCE_ARRAY(char, result_length); |
|
507 UNICODE::as_quoted_ascii(base, length, result, result_length); |
|
508 } else { |
|
509 jbyte* base = value->byte_at_addr(0); |
|
510 result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
|
511 result = NEW_RESOURCE_ARRAY(char, result_length); |
|
512 UNICODE::as_quoted_ascii(base, length, result, result_length); |
|
513 } |
|
514 assert(result_length >= length + 1, "must not be shorter"); |
|
515 assert(result_length == (int)strlen(result) + 1, "must match"); |
|
516 return result; |
|
517 } |
|
518 |
|
519 Symbol* java_lang_String::as_symbol(oop java_string, TRAPS) { |
|
520 typeArrayOop value = java_lang_String::value(java_string); |
|
521 int length = java_lang_String::length(java_string); |
|
522 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
523 if (!is_latin1) { |
|
524 jchar* base = (length == 0) ? NULL : value->char_at_addr(0); |
|
525 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
|
526 return sym; |
|
527 } else { |
|
528 ResourceMark rm; |
|
529 jbyte* position = (length == 0) ? NULL : value->byte_at_addr(0); |
|
530 const char* base = UNICODE::as_utf8(position, length); |
|
531 Symbol* sym = SymbolTable::lookup(base, length, THREAD); |
|
532 return sym; |
|
533 } |
|
534 } |
|
535 |
|
536 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
|
537 typeArrayOop value = java_lang_String::value(java_string); |
|
538 int length = java_lang_String::length(java_string); |
|
539 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
540 if (!is_latin1) { |
|
541 jchar* base = (length == 0) ? NULL : value->char_at_addr(0); |
|
542 return SymbolTable::probe_unicode(base, length); |
|
543 } else { |
|
544 ResourceMark rm; |
|
545 jbyte* position = (length == 0) ? NULL : value->byte_at_addr(0); |
|
546 const char* base = UNICODE::as_utf8(position, length); |
|
547 return SymbolTable::probe(base, length); |
|
548 } |
|
549 } |
|
550 |
|
551 int java_lang_String::utf8_length(oop java_string) { |
|
552 typeArrayOop value = java_lang_String::value(java_string); |
|
553 int length = java_lang_String::length(java_string); |
|
554 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
555 if (length == 0) { |
|
556 return 0; |
|
557 } |
|
558 if (!is_latin1) { |
|
559 return UNICODE::utf8_length(value->char_at_addr(0), length); |
|
560 } else { |
|
561 return UNICODE::utf8_length(value->byte_at_addr(0), length); |
|
562 } |
|
563 } |
|
564 |
|
565 char* java_lang_String::as_utf8_string(oop java_string) { |
|
566 typeArrayOop value = java_lang_String::value(java_string); |
|
567 int length = java_lang_String::length(java_string); |
|
568 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
569 if (!is_latin1) { |
|
570 jchar* position = (length == 0) ? NULL : value->char_at_addr(0); |
|
571 return UNICODE::as_utf8(position, length); |
|
572 } else { |
|
573 jbyte* position = (length == 0) ? NULL : value->byte_at_addr(0); |
|
574 return UNICODE::as_utf8(position, length); |
|
575 } |
|
576 } |
|
577 |
|
578 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
|
579 typeArrayOop value = java_lang_String::value(java_string); |
|
580 int length = java_lang_String::length(java_string); |
|
581 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
582 if (!is_latin1) { |
|
583 jchar* position = (length == 0) ? NULL : value->char_at_addr(0); |
|
584 return UNICODE::as_utf8(position, length, buf, buflen); |
|
585 } else { |
|
586 jbyte* position = (length == 0) ? NULL : value->byte_at_addr(0); |
|
587 return UNICODE::as_utf8(position, length, buf, buflen); |
|
588 } |
|
589 } |
|
590 |
|
591 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
|
592 typeArrayOop value = java_lang_String::value(java_string); |
|
593 int length = java_lang_String::length(java_string); |
|
594 assert(start + len <= length, "just checking"); |
|
595 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
596 if (!is_latin1) { |
|
597 jchar* position = value->char_at_addr(start); |
|
598 return UNICODE::as_utf8(position, len); |
|
599 } else { |
|
600 jbyte* position = value->byte_at_addr(start); |
|
601 return UNICODE::as_utf8(position, len); |
|
602 } |
|
603 } |
|
604 |
|
605 char* java_lang_String::as_utf8_string(oop java_string, int start, int len, char* buf, int buflen) { |
|
606 typeArrayOop value = java_lang_String::value(java_string); |
|
607 int length = java_lang_String::length(java_string); |
|
608 assert(start + len <= length, "just checking"); |
|
609 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
610 if (!is_latin1) { |
|
611 jchar* position = value->char_at_addr(start); |
|
612 return UNICODE::as_utf8(position, len, buf, buflen); |
|
613 } else { |
|
614 jbyte* position = value->byte_at_addr(start); |
|
615 return UNICODE::as_utf8(position, len, buf, buflen); |
|
616 } |
|
617 } |
|
618 |
|
619 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { |
|
620 assert(java_string->klass() == SystemDictionary::String_klass(), |
|
621 "must be java_string"); |
|
622 typeArrayOop value = java_lang_String::value(java_string); |
|
623 int length = java_lang_String::length(java_string); |
|
624 if (length != len) { |
|
625 return false; |
|
626 } |
|
627 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
628 if (!is_latin1) { |
|
629 for (int i = 0; i < len; i++) { |
|
630 if (value->char_at(i) != chars[i]) { |
|
631 return false; |
|
632 } |
|
633 } |
|
634 } else { |
|
635 for (int i = 0; i < len; i++) { |
|
636 if ((((jchar) value->byte_at(i)) & 0xff) != chars[i]) { |
|
637 return false; |
|
638 } |
|
639 } |
|
640 } |
|
641 return true; |
|
642 } |
|
643 |
|
644 bool java_lang_String::equals(oop str1, oop str2) { |
|
645 assert(str1->klass() == SystemDictionary::String_klass(), |
|
646 "must be java String"); |
|
647 assert(str2->klass() == SystemDictionary::String_klass(), |
|
648 "must be java String"); |
|
649 typeArrayOop value1 = java_lang_String::value(str1); |
|
650 int length1 = java_lang_String::length(str1); |
|
651 bool is_latin1 = java_lang_String::is_latin1(str1); |
|
652 typeArrayOop value2 = java_lang_String::value(str2); |
|
653 int length2 = java_lang_String::length(str2); |
|
654 bool is_latin2 = java_lang_String::is_latin1(str2); |
|
655 |
|
656 if ((length1 != length2) || (is_latin1 != is_latin2)) { |
|
657 // Strings of different size or with different |
|
658 // coders are never equal. |
|
659 return false; |
|
660 } |
|
661 int blength1 = value1->length(); |
|
662 for (int i = 0; i < value1->length(); i++) { |
|
663 if (value1->byte_at(i) != value2->byte_at(i)) { |
|
664 return false; |
|
665 } |
|
666 } |
|
667 return true; |
|
668 } |
|
669 |
|
670 void java_lang_String::print(oop java_string, outputStream* st) { |
|
671 assert(java_string->klass() == SystemDictionary::String_klass(), "must be java_string"); |
|
672 typeArrayOop value = java_lang_String::value(java_string); |
|
673 |
|
674 if (value == NULL) { |
|
675 // This can happen if, e.g., printing a String |
|
676 // object before its initializer has been called |
|
677 st->print("NULL"); |
|
678 return; |
|
679 } |
|
680 |
|
681 int length = java_lang_String::length(java_string); |
|
682 bool is_latin1 = java_lang_String::is_latin1(java_string); |
|
683 |
|
684 st->print("\""); |
|
685 for (int index = 0; index < length; index++) { |
|
686 st->print("%c", (!is_latin1) ? value->char_at(index) : |
|
687 ((jchar) value->byte_at(index)) & 0xff ); |
|
688 } |
|
689 st->print("\""); |
|
690 } |
|
691 |
|
692 |
|
693 static void initialize_static_field(fieldDescriptor* fd, Handle mirror, TRAPS) { |
|
694 assert(mirror.not_null() && fd->is_static(), "just checking"); |
|
695 if (fd->has_initial_value()) { |
|
696 BasicType t = fd->field_type(); |
|
697 switch (t) { |
|
698 case T_BYTE: |
|
699 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
|
700 break; |
|
701 case T_BOOLEAN: |
|
702 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
|
703 break; |
|
704 case T_CHAR: |
|
705 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
|
706 break; |
|
707 case T_SHORT: |
|
708 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
|
709 break; |
|
710 case T_INT: |
|
711 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
|
712 break; |
|
713 case T_FLOAT: |
|
714 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
|
715 break; |
|
716 case T_DOUBLE: |
|
717 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
|
718 break; |
|
719 case T_LONG: |
|
720 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
|
721 break; |
|
722 case T_OBJECT: |
|
723 { |
|
724 #ifdef ASSERT |
|
725 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
|
726 assert(fd->signature() == sym, "just checking"); |
|
727 #endif |
|
728 oop string = fd->string_initial_value(CHECK); |
|
729 mirror()->obj_field_put(fd->offset(), string); |
|
730 } |
|
731 break; |
|
732 default: |
|
733 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
|
734 "Illegal ConstantValue attribute in class file"); |
|
735 } |
|
736 } |
|
737 } |
|
738 |
|
739 |
|
740 void java_lang_Class::fixup_mirror(Klass* k, TRAPS) { |
|
741 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
|
742 |
|
743 // If the offset was read from the shared archive, it was fixed up already |
|
744 if (!k->is_shared()) { |
|
745 if (k->is_instance_klass()) { |
|
746 // During bootstrap, java.lang.Class wasn't loaded so static field |
|
747 // offsets were computed without the size added it. Go back and |
|
748 // update all the static field offsets to included the size. |
|
749 for (JavaFieldStream fs(InstanceKlass::cast(k)); !fs.done(); fs.next()) { |
|
750 if (fs.access_flags().is_static()) { |
|
751 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
|
752 fs.set_offset(real_offset); |
|
753 } |
|
754 } |
|
755 } |
|
756 } |
|
757 create_mirror(k, Handle(), Handle(), Handle(), CHECK); |
|
758 } |
|
759 |
|
760 void java_lang_Class::initialize_mirror_fields(Klass* k, |
|
761 Handle mirror, |
|
762 Handle protection_domain, |
|
763 TRAPS) { |
|
764 // Allocate a simple java object for a lock. |
|
765 // This needs to be a java object because during class initialization |
|
766 // it can be held across a java call. |
|
767 typeArrayOop r = oopFactory::new_typeArray(T_INT, 0, CHECK); |
|
768 set_init_lock(mirror(), r); |
|
769 |
|
770 // Set protection domain also |
|
771 set_protection_domain(mirror(), protection_domain()); |
|
772 |
|
773 // Initialize static fields |
|
774 InstanceKlass::cast(k)->do_local_static_fields(&initialize_static_field, mirror, CHECK); |
|
775 } |
|
776 |
|
777 // Set the java.lang.Module module field in the java_lang_Class mirror |
|
778 void java_lang_Class::set_mirror_module_field(Klass* k, Handle mirror, Handle module, TRAPS) { |
|
779 if (module.is_null()) { |
|
780 // During startup, the module may be NULL only if java.base has not been defined yet. |
|
781 // Put the class on the fixup_module_list to patch later when the java.lang.Module |
|
782 // for java.base is known. |
|
783 assert(!Universe::is_module_initialized(), "Incorrect java.lang.Module pre module system initialization"); |
|
784 |
|
785 bool javabase_was_defined = false; |
|
786 { |
|
787 MutexLocker m1(Module_lock, THREAD); |
|
788 // Keep list of classes needing java.base module fixup |
|
789 if (!ModuleEntryTable::javabase_defined()) { |
|
790 assert(k->java_mirror() != NULL, "Class's mirror is null"); |
|
791 k->class_loader_data()->inc_keep_alive(); |
|
792 assert(fixup_module_field_list() != NULL, "fixup_module_field_list not initialized"); |
|
793 fixup_module_field_list()->push(k); |
|
794 } else { |
|
795 javabase_was_defined = true; |
|
796 } |
|
797 } |
|
798 |
|
799 // If java.base was already defined then patch this particular class with java.base. |
|
800 if (javabase_was_defined) { |
|
801 ModuleEntry *javabase_entry = ModuleEntryTable::javabase_moduleEntry(); |
|
802 assert(javabase_entry != NULL && javabase_entry->module() != NULL, |
|
803 "Setting class module field, " JAVA_BASE_NAME " should be defined"); |
|
804 Handle javabase_handle(THREAD, javabase_entry->module()); |
|
805 set_module(mirror(), javabase_handle()); |
|
806 } |
|
807 } else { |
|
808 assert(Universe::is_module_initialized() || |
|
809 (ModuleEntryTable::javabase_defined() && |
|
810 (module() == ModuleEntryTable::javabase_moduleEntry()->module())), |
|
811 "Incorrect java.lang.Module specification while creating mirror"); |
|
812 set_module(mirror(), module()); |
|
813 } |
|
814 } |
|
815 |
|
816 // Statically allocate fixup lists because they always get created. |
|
817 void java_lang_Class::allocate_fixup_lists() { |
|
818 GrowableArray<Klass*>* mirror_list = |
|
819 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
|
820 set_fixup_mirror_list(mirror_list); |
|
821 |
|
822 GrowableArray<Klass*>* module_list = |
|
823 new (ResourceObj::C_HEAP, mtModule) GrowableArray<Klass*>(500, true); |
|
824 set_fixup_module_field_list(module_list); |
|
825 } |
|
826 |
|
827 void java_lang_Class::create_mirror(Klass* k, Handle class_loader, |
|
828 Handle module, Handle protection_domain, TRAPS) { |
|
829 assert(k != NULL, "Use create_basic_type_mirror for primitive types"); |
|
830 assert(k->java_mirror() == NULL, "should only assign mirror once"); |
|
831 |
|
832 // Use this moment of initialization to cache modifier_flags also, |
|
833 // to support Class.getModifiers(). Instance classes recalculate |
|
834 // the cached flags after the class file is parsed, but before the |
|
835 // class is put into the system dictionary. |
|
836 int computed_modifiers = k->compute_modifier_flags(CHECK); |
|
837 k->set_modifier_flags(computed_modifiers); |
|
838 // Class_klass has to be loaded because it is used to allocate |
|
839 // the mirror. |
|
840 if (SystemDictionary::Class_klass_loaded()) { |
|
841 // Allocate mirror (java.lang.Class instance) |
|
842 oop mirror_oop = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK); |
|
843 Handle mirror(THREAD, mirror_oop); |
|
844 Handle comp_mirror; |
|
845 |
|
846 // Setup indirection from mirror->klass |
|
847 java_lang_Class::set_klass(mirror(), k); |
|
848 |
|
849 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
|
850 assert(oop_size(mirror()) == mk->instance_size(k), "should have been set"); |
|
851 |
|
852 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
|
853 |
|
854 // It might also have a component mirror. This mirror must already exist. |
|
855 if (k->is_array_klass()) { |
|
856 if (k->is_typeArray_klass()) { |
|
857 BasicType type = TypeArrayKlass::cast(k)->element_type(); |
|
858 comp_mirror = Handle(THREAD, Universe::java_mirror(type)); |
|
859 } else { |
|
860 assert(k->is_objArray_klass(), "Must be"); |
|
861 Klass* element_klass = ObjArrayKlass::cast(k)->element_klass(); |
|
862 assert(element_klass != NULL, "Must have an element klass"); |
|
863 comp_mirror = Handle(THREAD, element_klass->java_mirror()); |
|
864 } |
|
865 assert(comp_mirror() != NULL, "must have a mirror"); |
|
866 |
|
867 // Two-way link between the array klass and its component mirror: |
|
868 // (array_klass) k -> mirror -> component_mirror -> array_klass -> k |
|
869 set_component_mirror(mirror(), comp_mirror()); |
|
870 // See below for ordering dependencies between field array_klass in component mirror |
|
871 // and java_mirror in this klass. |
|
872 } else { |
|
873 assert(k->is_instance_klass(), "Must be"); |
|
874 |
|
875 initialize_mirror_fields(k, mirror, protection_domain, THREAD); |
|
876 if (HAS_PENDING_EXCEPTION) { |
|
877 // If any of the fields throws an exception like OOM remove the klass field |
|
878 // from the mirror so GC doesn't follow it after the klass has been deallocated. |
|
879 // This mirror looks like a primitive type, which logically it is because it |
|
880 // it represents no class. |
|
881 java_lang_Class::set_klass(mirror(), NULL); |
|
882 return; |
|
883 } |
|
884 } |
|
885 |
|
886 // set the classLoader field in the java_lang_Class instance |
|
887 assert(class_loader() == k->class_loader(), "should be same"); |
|
888 set_class_loader(mirror(), class_loader()); |
|
889 |
|
890 // Setup indirection from klass->mirror |
|
891 // after any exceptions can happen during allocations. |
|
892 k->set_java_mirror(mirror()); |
|
893 |
|
894 // Set the module field in the java_lang_Class instance. This must be done |
|
895 // after the mirror is set. |
|
896 set_mirror_module_field(k, mirror, module, THREAD); |
|
897 |
|
898 if (comp_mirror() != NULL) { |
|
899 // Set after k->java_mirror() is published, because compiled code running |
|
900 // concurrently doesn't expect a k to have a null java_mirror. |
|
901 release_set_array_klass(comp_mirror(), k); |
|
902 } |
|
903 } else { |
|
904 assert(fixup_mirror_list() != NULL, "fixup_mirror_list not initialized"); |
|
905 fixup_mirror_list()->push(k); |
|
906 } |
|
907 } |
|
908 |
|
909 void java_lang_Class::fixup_module_field(Klass* k, Handle module) { |
|
910 assert(_module_offset != 0, "must have been computed already"); |
|
911 java_lang_Class::set_module(k->java_mirror(), module()); |
|
912 } |
|
913 |
|
914 int java_lang_Class::oop_size(oop java_class) { |
|
915 assert(_oop_size_offset != 0, "must be set"); |
|
916 int size = java_class->int_field(_oop_size_offset); |
|
917 assert(size > 0, "Oop size must be greater than zero, not %d", size); |
|
918 return size; |
|
919 } |
|
920 |
|
921 void java_lang_Class::set_oop_size(oop java_class, int size) { |
|
922 assert(_oop_size_offset != 0, "must be set"); |
|
923 assert(size > 0, "Oop size must be greater than zero, not %d", size); |
|
924 java_class->int_field_put(_oop_size_offset, size); |
|
925 } |
|
926 |
|
927 int java_lang_Class::static_oop_field_count(oop java_class) { |
|
928 assert(_static_oop_field_count_offset != 0, "must be set"); |
|
929 return java_class->int_field(_static_oop_field_count_offset); |
|
930 } |
|
931 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
|
932 assert(_static_oop_field_count_offset != 0, "must be set"); |
|
933 java_class->int_field_put(_static_oop_field_count_offset, size); |
|
934 } |
|
935 |
|
936 oop java_lang_Class::protection_domain(oop java_class) { |
|
937 assert(_protection_domain_offset != 0, "must be set"); |
|
938 return java_class->obj_field(_protection_domain_offset); |
|
939 } |
|
940 void java_lang_Class::set_protection_domain(oop java_class, oop pd) { |
|
941 assert(_protection_domain_offset != 0, "must be set"); |
|
942 java_class->obj_field_put(_protection_domain_offset, pd); |
|
943 } |
|
944 |
|
945 void java_lang_Class::set_component_mirror(oop java_class, oop comp_mirror) { |
|
946 assert(_component_mirror_offset != 0, "must be set"); |
|
947 java_class->obj_field_put(_component_mirror_offset, comp_mirror); |
|
948 } |
|
949 oop java_lang_Class::component_mirror(oop java_class) { |
|
950 assert(_component_mirror_offset != 0, "must be set"); |
|
951 return java_class->obj_field(_component_mirror_offset); |
|
952 } |
|
953 |
|
954 oop java_lang_Class::init_lock(oop java_class) { |
|
955 assert(_init_lock_offset != 0, "must be set"); |
|
956 return java_class->obj_field(_init_lock_offset); |
|
957 } |
|
958 void java_lang_Class::set_init_lock(oop java_class, oop init_lock) { |
|
959 assert(_init_lock_offset != 0, "must be set"); |
|
960 java_class->obj_field_put(_init_lock_offset, init_lock); |
|
961 } |
|
962 |
|
963 objArrayOop java_lang_Class::signers(oop java_class) { |
|
964 assert(_signers_offset != 0, "must be set"); |
|
965 return (objArrayOop)java_class->obj_field(_signers_offset); |
|
966 } |
|
967 void java_lang_Class::set_signers(oop java_class, objArrayOop signers) { |
|
968 assert(_signers_offset != 0, "must be set"); |
|
969 java_class->obj_field_put(_signers_offset, (oop)signers); |
|
970 } |
|
971 |
|
972 |
|
973 void java_lang_Class::set_class_loader(oop java_class, oop loader) { |
|
974 // jdk7 runs Queens in bootstrapping and jdk8-9 has no coordinated pushes yet. |
|
975 if (_class_loader_offset != 0) { |
|
976 java_class->obj_field_put(_class_loader_offset, loader); |
|
977 } |
|
978 } |
|
979 |
|
980 oop java_lang_Class::class_loader(oop java_class) { |
|
981 assert(_class_loader_offset != 0, "must be set"); |
|
982 return java_class->obj_field(_class_loader_offset); |
|
983 } |
|
984 |
|
985 oop java_lang_Class::module(oop java_class) { |
|
986 assert(_module_offset != 0, "must be set"); |
|
987 return java_class->obj_field(_module_offset); |
|
988 } |
|
989 |
|
990 void java_lang_Class::set_module(oop java_class, oop module) { |
|
991 assert(_module_offset != 0, "must be set"); |
|
992 java_class->obj_field_put(_module_offset, module); |
|
993 } |
|
994 |
|
995 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
|
996 // This should be improved by adding a field at the Java level or by |
|
997 // introducing a new VM klass (see comment in ClassFileParser) |
|
998 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
|
999 if (type != T_VOID) { |
|
1000 Klass* aklass = Universe::typeArrayKlassObj(type); |
|
1001 assert(aklass != NULL, "correct bootstrap"); |
|
1002 release_set_array_klass(java_class, aklass); |
|
1003 } |
|
1004 #ifdef ASSERT |
|
1005 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
|
1006 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
|
1007 #endif |
|
1008 return java_class; |
|
1009 } |
|
1010 |
|
1011 |
|
1012 Klass* java_lang_Class::as_Klass(oop java_class) { |
|
1013 //%note memory_2 |
|
1014 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
1015 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
|
1016 assert(k == NULL || k->is_klass(), "type check"); |
|
1017 return k; |
|
1018 } |
|
1019 |
|
1020 |
|
1021 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
|
1022 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
1023 java_class->metadata_field_put(_klass_offset, klass); |
|
1024 } |
|
1025 |
|
1026 |
|
1027 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
|
1028 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
1029 Symbol* name = NULL; |
|
1030 bool is_instance = false; |
|
1031 if (is_primitive(java_class)) { |
|
1032 name = vmSymbols::type_signature(primitive_type(java_class)); |
|
1033 } else { |
|
1034 Klass* k = as_Klass(java_class); |
|
1035 is_instance = k->is_instance_klass(); |
|
1036 name = k->name(); |
|
1037 } |
|
1038 if (name == NULL) { |
|
1039 st->print("<null>"); |
|
1040 return; |
|
1041 } |
|
1042 if (is_instance) st->print("L"); |
|
1043 st->write((char*) name->base(), (int) name->utf8_length()); |
|
1044 if (is_instance) st->print(";"); |
|
1045 } |
|
1046 |
|
1047 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
1048 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
1049 Symbol* name; |
|
1050 if (is_primitive(java_class)) { |
|
1051 name = vmSymbols::type_signature(primitive_type(java_class)); |
|
1052 // Because this can create a new symbol, the caller has to decrement |
|
1053 // the refcount, so make adjustment here and below for symbols returned |
|
1054 // that are not created or incremented due to a successful lookup. |
|
1055 name->increment_refcount(); |
|
1056 } else { |
|
1057 Klass* k = as_Klass(java_class); |
|
1058 if (!k->is_instance_klass()) { |
|
1059 name = k->name(); |
|
1060 name->increment_refcount(); |
|
1061 } else { |
|
1062 ResourceMark rm; |
|
1063 const char* sigstr = k->signature_name(); |
|
1064 int siglen = (int) strlen(sigstr); |
|
1065 if (!intern_if_not_found) { |
|
1066 name = SymbolTable::probe(sigstr, siglen); |
|
1067 } else { |
|
1068 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
1069 } |
|
1070 } |
|
1071 } |
|
1072 return name; |
|
1073 } |
|
1074 |
|
1075 // Returns the Java name for this Java mirror (Resource allocated) |
|
1076 // See Klass::external_name(). |
|
1077 // For primitive type Java mirrors, its type name is returned. |
|
1078 const char* java_lang_Class::as_external_name(oop java_class) { |
|
1079 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
1080 const char* name = NULL; |
|
1081 if (is_primitive(java_class)) { |
|
1082 name = type2name(primitive_type(java_class)); |
|
1083 } else { |
|
1084 name = as_Klass(java_class)->external_name(); |
|
1085 } |
|
1086 if (name == NULL) { |
|
1087 name = "<null>"; |
|
1088 } |
|
1089 return name; |
|
1090 } |
|
1091 |
|
1092 Klass* java_lang_Class::array_klass_acquire(oop java_class) { |
|
1093 Klass* k = ((Klass*)java_class->metadata_field_acquire(_array_klass_offset)); |
|
1094 assert(k == NULL || k->is_klass() && k->is_array_klass(), "should be array klass"); |
|
1095 return k; |
|
1096 } |
|
1097 |
|
1098 |
|
1099 void java_lang_Class::release_set_array_klass(oop java_class, Klass* klass) { |
|
1100 assert(klass->is_klass() && klass->is_array_klass(), "should be array klass"); |
|
1101 java_class->release_metadata_field_put(_array_klass_offset, klass); |
|
1102 } |
|
1103 |
|
1104 |
|
1105 bool java_lang_Class::is_primitive(oop java_class) { |
|
1106 // should assert: |
|
1107 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
1108 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
|
1109 |
|
1110 #ifdef ASSERT |
|
1111 if (is_primitive) { |
|
1112 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
|
1113 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
|
1114 "Should be either the T_VOID primitive or a java primitive"); |
|
1115 } |
|
1116 #endif |
|
1117 |
|
1118 return is_primitive; |
|
1119 } |
|
1120 |
|
1121 |
|
1122 BasicType java_lang_Class::primitive_type(oop java_class) { |
|
1123 assert(java_lang_Class::is_primitive(java_class), "just checking"); |
|
1124 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
|
1125 BasicType type = T_VOID; |
|
1126 if (ak != NULL) { |
|
1127 // Note: create_basic_type_mirror above initializes ak to a non-null value. |
|
1128 type = ArrayKlass::cast(ak)->element_type(); |
|
1129 } else { |
|
1130 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); |
|
1131 } |
|
1132 assert(Universe::java_mirror(type) == java_class, "must be consistent"); |
|
1133 return type; |
|
1134 } |
|
1135 |
|
1136 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
|
1137 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
1138 if (is_primitive(java_class)) { |
|
1139 if (reference_klass != NULL) |
|
1140 (*reference_klass) = NULL; |
|
1141 return primitive_type(java_class); |
|
1142 } else { |
|
1143 if (reference_klass != NULL) |
|
1144 (*reference_klass) = as_Klass(java_class); |
|
1145 return T_OBJECT; |
|
1146 } |
|
1147 } |
|
1148 |
|
1149 |
|
1150 oop java_lang_Class::primitive_mirror(BasicType t) { |
|
1151 oop mirror = Universe::java_mirror(t); |
|
1152 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
|
1153 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
|
1154 return mirror; |
|
1155 } |
|
1156 |
|
1157 bool java_lang_Class::offsets_computed = false; |
|
1158 int java_lang_Class::classRedefinedCount_offset = -1; |
|
1159 |
|
1160 void java_lang_Class::compute_offsets() { |
|
1161 assert(!offsets_computed, "offsets should be initialized only once"); |
|
1162 offsets_computed = true; |
|
1163 |
|
1164 Klass* k = SystemDictionary::Class_klass(); |
|
1165 // The classRedefinedCount field is only present starting in 1.5, |
|
1166 // so don't go fatal. |
|
1167 compute_optional_offset(classRedefinedCount_offset, |
|
1168 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
|
1169 |
|
1170 // Needs to be optional because the old build runs Queens during bootstrapping |
|
1171 // and jdk8-9 doesn't have coordinated pushes yet. |
|
1172 compute_optional_offset(_class_loader_offset, |
|
1173 k, vmSymbols::classLoader_name(), |
|
1174 vmSymbols::classloader_signature()); |
|
1175 |
|
1176 compute_offset(_component_mirror_offset, |
|
1177 k, vmSymbols::componentType_name(), |
|
1178 vmSymbols::class_signature()); |
|
1179 |
|
1180 compute_offset(_module_offset, |
|
1181 k, vmSymbols::module_name(), |
|
1182 vmSymbols::module_signature()); |
|
1183 |
|
1184 // Init lock is a C union with component_mirror. Only instanceKlass mirrors have |
|
1185 // init_lock and only ArrayKlass mirrors have component_mirror. Since both are oops |
|
1186 // GC treats them the same. |
|
1187 _init_lock_offset = _component_mirror_offset; |
|
1188 |
|
1189 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
|
1190 } |
|
1191 |
|
1192 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { |
|
1193 if (classRedefinedCount_offset == -1) { |
|
1194 // If we don't have an offset for it then just return -1 as a marker. |
|
1195 return -1; |
|
1196 } |
|
1197 |
|
1198 return the_class_mirror->int_field(classRedefinedCount_offset); |
|
1199 } |
|
1200 |
|
1201 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { |
|
1202 if (classRedefinedCount_offset == -1) { |
|
1203 // If we don't have an offset for it then nothing to set. |
|
1204 return; |
|
1205 } |
|
1206 |
|
1207 the_class_mirror->int_field_put(classRedefinedCount_offset, value); |
|
1208 } |
|
1209 |
|
1210 |
|
1211 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the |
|
1212 // platform thread structure, and a eetop offset which was used for thread |
|
1213 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures |
|
1214 // merged, so in the HotSpot VM we just use the eetop field for the thread |
|
1215 // instead of the privateInfo_offset. |
|
1216 // |
|
1217 // Note: The stackSize field is only present starting in 1.4. |
|
1218 |
|
1219 int java_lang_Thread::_name_offset = 0; |
|
1220 int java_lang_Thread::_group_offset = 0; |
|
1221 int java_lang_Thread::_contextClassLoader_offset = 0; |
|
1222 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; |
|
1223 int java_lang_Thread::_priority_offset = 0; |
|
1224 int java_lang_Thread::_eetop_offset = 0; |
|
1225 int java_lang_Thread::_daemon_offset = 0; |
|
1226 int java_lang_Thread::_stillborn_offset = 0; |
|
1227 int java_lang_Thread::_stackSize_offset = 0; |
|
1228 int java_lang_Thread::_tid_offset = 0; |
|
1229 int java_lang_Thread::_thread_status_offset = 0; |
|
1230 int java_lang_Thread::_park_blocker_offset = 0; |
|
1231 int java_lang_Thread::_park_event_offset = 0 ; |
|
1232 |
|
1233 |
|
1234 void java_lang_Thread::compute_offsets() { |
|
1235 assert(_group_offset == 0, "offsets should be initialized only once"); |
|
1236 |
|
1237 Klass* k = SystemDictionary::Thread_klass(); |
|
1238 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
1239 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
|
1240 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
|
1241 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
|
1242 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
|
1243 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
|
1244 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
|
1245 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
|
1246 // The stackSize field is only present starting in 1.4, so don't go fatal. |
|
1247 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
|
1248 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
|
1249 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
|
1250 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
|
1251 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
|
1252 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
|
1253 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
|
1254 vmSymbols::long_signature()); |
|
1255 } |
|
1256 |
|
1257 |
|
1258 JavaThread* java_lang_Thread::thread(oop java_thread) { |
|
1259 return (JavaThread*)java_thread->address_field(_eetop_offset); |
|
1260 } |
|
1261 |
|
1262 |
|
1263 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { |
|
1264 java_thread->address_field_put(_eetop_offset, (address)thread); |
|
1265 } |
|
1266 |
|
1267 |
|
1268 oop java_lang_Thread::name(oop java_thread) { |
|
1269 return java_thread->obj_field(_name_offset); |
|
1270 } |
|
1271 |
|
1272 |
|
1273 void java_lang_Thread::set_name(oop java_thread, oop name) { |
|
1274 java_thread->obj_field_put(_name_offset, name); |
|
1275 } |
|
1276 |
|
1277 |
|
1278 ThreadPriority java_lang_Thread::priority(oop java_thread) { |
|
1279 return (ThreadPriority)java_thread->int_field(_priority_offset); |
|
1280 } |
|
1281 |
|
1282 |
|
1283 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { |
|
1284 java_thread->int_field_put(_priority_offset, priority); |
|
1285 } |
|
1286 |
|
1287 |
|
1288 oop java_lang_Thread::threadGroup(oop java_thread) { |
|
1289 return java_thread->obj_field(_group_offset); |
|
1290 } |
|
1291 |
|
1292 |
|
1293 bool java_lang_Thread::is_stillborn(oop java_thread) { |
|
1294 return java_thread->bool_field(_stillborn_offset) != 0; |
|
1295 } |
|
1296 |
|
1297 |
|
1298 // We never have reason to turn the stillborn bit off |
|
1299 void java_lang_Thread::set_stillborn(oop java_thread) { |
|
1300 java_thread->bool_field_put(_stillborn_offset, true); |
|
1301 } |
|
1302 |
|
1303 |
|
1304 bool java_lang_Thread::is_alive(oop java_thread) { |
|
1305 JavaThread* thr = java_lang_Thread::thread(java_thread); |
|
1306 return (thr != NULL); |
|
1307 } |
|
1308 |
|
1309 |
|
1310 bool java_lang_Thread::is_daemon(oop java_thread) { |
|
1311 return java_thread->bool_field(_daemon_offset) != 0; |
|
1312 } |
|
1313 |
|
1314 |
|
1315 void java_lang_Thread::set_daemon(oop java_thread) { |
|
1316 java_thread->bool_field_put(_daemon_offset, true); |
|
1317 } |
|
1318 |
|
1319 oop java_lang_Thread::context_class_loader(oop java_thread) { |
|
1320 return java_thread->obj_field(_contextClassLoader_offset); |
|
1321 } |
|
1322 |
|
1323 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { |
|
1324 return java_thread->obj_field(_inheritedAccessControlContext_offset); |
|
1325 } |
|
1326 |
|
1327 |
|
1328 jlong java_lang_Thread::stackSize(oop java_thread) { |
|
1329 if (_stackSize_offset > 0) { |
|
1330 return java_thread->long_field(_stackSize_offset); |
|
1331 } else { |
|
1332 return 0; |
|
1333 } |
|
1334 } |
|
1335 |
|
1336 // Write the thread status value to threadStatus field in java.lang.Thread java class. |
|
1337 void java_lang_Thread::set_thread_status(oop java_thread, |
|
1338 java_lang_Thread::ThreadStatus status) { |
|
1339 // The threadStatus is only present starting in 1.5 |
|
1340 if (_thread_status_offset > 0) { |
|
1341 java_thread->int_field_put(_thread_status_offset, status); |
|
1342 } |
|
1343 } |
|
1344 |
|
1345 // Read thread status value from threadStatus field in java.lang.Thread java class. |
|
1346 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { |
|
1347 // Make sure the caller is operating on behalf of the VM or is |
|
1348 // running VM code (state == _thread_in_vm). |
|
1349 assert(Threads_lock->owned_by_self() || Thread::current()->is_VM_thread() || |
|
1350 JavaThread::current()->thread_state() == _thread_in_vm, |
|
1351 "Java Thread is not running in vm"); |
|
1352 // The threadStatus is only present starting in 1.5 |
|
1353 if (_thread_status_offset > 0) { |
|
1354 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); |
|
1355 } else { |
|
1356 // All we can easily figure out is if it is alive, but that is |
|
1357 // enough info for a valid unknown status. |
|
1358 // These aren't restricted to valid set ThreadStatus values, so |
|
1359 // use JVMTI values and cast. |
|
1360 JavaThread* thr = java_lang_Thread::thread(java_thread); |
|
1361 if (thr == NULL) { |
|
1362 // the thread hasn't run yet or is in the process of exiting |
|
1363 return NEW; |
|
1364 } |
|
1365 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; |
|
1366 } |
|
1367 } |
|
1368 |
|
1369 |
|
1370 jlong java_lang_Thread::thread_id(oop java_thread) { |
|
1371 // The thread ID field is only present starting in 1.5 |
|
1372 if (_tid_offset > 0) { |
|
1373 return java_thread->long_field(_tid_offset); |
|
1374 } else { |
|
1375 return 0; |
|
1376 } |
|
1377 } |
|
1378 |
|
1379 oop java_lang_Thread::park_blocker(oop java_thread) { |
|
1380 assert(JDK_Version::current().supports_thread_park_blocker() && |
|
1381 _park_blocker_offset != 0, "Must support parkBlocker field"); |
|
1382 |
|
1383 if (_park_blocker_offset > 0) { |
|
1384 return java_thread->obj_field(_park_blocker_offset); |
|
1385 } |
|
1386 |
|
1387 return NULL; |
|
1388 } |
|
1389 |
|
1390 jlong java_lang_Thread::park_event(oop java_thread) { |
|
1391 if (_park_event_offset > 0) { |
|
1392 return java_thread->long_field(_park_event_offset); |
|
1393 } |
|
1394 return 0; |
|
1395 } |
|
1396 |
|
1397 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { |
|
1398 if (_park_event_offset > 0) { |
|
1399 java_thread->long_field_put(_park_event_offset, ptr); |
|
1400 return true; |
|
1401 } |
|
1402 return false; |
|
1403 } |
|
1404 |
|
1405 |
|
1406 const char* java_lang_Thread::thread_status_name(oop java_thread) { |
|
1407 assert(_thread_status_offset != 0, "Must have thread status"); |
|
1408 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); |
|
1409 switch (status) { |
|
1410 case NEW : return "NEW"; |
|
1411 case RUNNABLE : return "RUNNABLE"; |
|
1412 case SLEEPING : return "TIMED_WAITING (sleeping)"; |
|
1413 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; |
|
1414 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; |
|
1415 case PARKED : return "WAITING (parking)"; |
|
1416 case PARKED_TIMED : return "TIMED_WAITING (parking)"; |
|
1417 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; |
|
1418 case TERMINATED : return "TERMINATED"; |
|
1419 default : return "UNKNOWN"; |
|
1420 }; |
|
1421 } |
|
1422 int java_lang_ThreadGroup::_parent_offset = 0; |
|
1423 int java_lang_ThreadGroup::_name_offset = 0; |
|
1424 int java_lang_ThreadGroup::_threads_offset = 0; |
|
1425 int java_lang_ThreadGroup::_groups_offset = 0; |
|
1426 int java_lang_ThreadGroup::_maxPriority_offset = 0; |
|
1427 int java_lang_ThreadGroup::_destroyed_offset = 0; |
|
1428 int java_lang_ThreadGroup::_daemon_offset = 0; |
|
1429 int java_lang_ThreadGroup::_nthreads_offset = 0; |
|
1430 int java_lang_ThreadGroup::_ngroups_offset = 0; |
|
1431 |
|
1432 oop java_lang_ThreadGroup::parent(oop java_thread_group) { |
|
1433 assert(oopDesc::is_oop(java_thread_group), "thread group must be oop"); |
|
1434 return java_thread_group->obj_field(_parent_offset); |
|
1435 } |
|
1436 |
|
1437 // ("name as oop" accessor is not necessary) |
|
1438 |
|
1439 const char* java_lang_ThreadGroup::name(oop java_thread_group) { |
|
1440 oop name = java_thread_group->obj_field(_name_offset); |
|
1441 // ThreadGroup.name can be null |
|
1442 if (name != NULL) { |
|
1443 return java_lang_String::as_utf8_string(name); |
|
1444 } |
|
1445 return NULL; |
|
1446 } |
|
1447 |
|
1448 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { |
|
1449 assert(oopDesc::is_oop(java_thread_group), "thread group must be oop"); |
|
1450 return java_thread_group->int_field(_nthreads_offset); |
|
1451 } |
|
1452 |
|
1453 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { |
|
1454 oop threads = java_thread_group->obj_field(_threads_offset); |
|
1455 assert(threads != NULL, "threadgroups should have threads"); |
|
1456 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code |
|
1457 return objArrayOop(threads); |
|
1458 } |
|
1459 |
|
1460 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { |
|
1461 assert(oopDesc::is_oop(java_thread_group), "thread group must be oop"); |
|
1462 return java_thread_group->int_field(_ngroups_offset); |
|
1463 } |
|
1464 |
|
1465 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { |
|
1466 oop groups = java_thread_group->obj_field(_groups_offset); |
|
1467 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code |
|
1468 return objArrayOop(groups); |
|
1469 } |
|
1470 |
|
1471 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { |
|
1472 assert(oopDesc::is_oop(java_thread_group), "thread group must be oop"); |
|
1473 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); |
|
1474 } |
|
1475 |
|
1476 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { |
|
1477 assert(oopDesc::is_oop(java_thread_group), "thread group must be oop"); |
|
1478 return java_thread_group->bool_field(_destroyed_offset) != 0; |
|
1479 } |
|
1480 |
|
1481 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { |
|
1482 assert(oopDesc::is_oop(java_thread_group), "thread group must be oop"); |
|
1483 return java_thread_group->bool_field(_daemon_offset) != 0; |
|
1484 } |
|
1485 |
|
1486 void java_lang_ThreadGroup::compute_offsets() { |
|
1487 assert(_parent_offset == 0, "offsets should be initialized only once"); |
|
1488 |
|
1489 Klass* k = SystemDictionary::ThreadGroup_klass(); |
|
1490 |
|
1491 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
|
1492 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
1493 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
|
1494 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
|
1495 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
|
1496 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
|
1497 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
|
1498 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
|
1499 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
|
1500 } |
|
1501 |
|
1502 |
|
1503 void java_lang_Throwable::compute_offsets() { |
|
1504 Klass* k = SystemDictionary::Throwable_klass(); |
|
1505 compute_offset(depth_offset, k, vmSymbols::depth_name(), vmSymbols::int_signature()); |
|
1506 } |
|
1507 |
|
1508 oop java_lang_Throwable::unassigned_stacktrace() { |
|
1509 InstanceKlass* ik = SystemDictionary::Throwable_klass(); |
|
1510 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
|
1511 if (UseCompressedOops) { |
|
1512 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
1513 } else { |
|
1514 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
1515 } |
|
1516 } |
|
1517 |
|
1518 oop java_lang_Throwable::backtrace(oop throwable) { |
|
1519 return throwable->obj_field_acquire(backtrace_offset); |
|
1520 } |
|
1521 |
|
1522 |
|
1523 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { |
|
1524 throwable->release_obj_field_put(backtrace_offset, value); |
|
1525 } |
|
1526 |
|
1527 int java_lang_Throwable::depth(oop throwable) { |
|
1528 return throwable->int_field(depth_offset); |
|
1529 } |
|
1530 |
|
1531 void java_lang_Throwable::set_depth(oop throwable, int value) { |
|
1532 throwable->int_field_put(depth_offset, value); |
|
1533 } |
|
1534 |
|
1535 oop java_lang_Throwable::message(oop throwable) { |
|
1536 return throwable->obj_field(detailMessage_offset); |
|
1537 } |
|
1538 |
|
1539 |
|
1540 // Return Symbol for detailed_message or NULL |
|
1541 Symbol* java_lang_Throwable::detail_message(oop throwable) { |
|
1542 PRESERVE_EXCEPTION_MARK; // Keep original exception |
|
1543 oop detailed_message = java_lang_Throwable::message(throwable); |
|
1544 if (detailed_message != NULL) { |
|
1545 return java_lang_String::as_symbol(detailed_message, THREAD); |
|
1546 } |
|
1547 return NULL; |
|
1548 } |
|
1549 |
|
1550 void java_lang_Throwable::set_message(oop throwable, oop value) { |
|
1551 throwable->obj_field_put(detailMessage_offset, value); |
|
1552 } |
|
1553 |
|
1554 |
|
1555 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
|
1556 throwable->obj_field_put(stackTrace_offset, st_element_array); |
|
1557 } |
|
1558 |
|
1559 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
|
1560 set_stacktrace(throwable, NULL); |
|
1561 } |
|
1562 |
|
1563 |
|
1564 void java_lang_Throwable::print(oop throwable, outputStream* st) { |
|
1565 ResourceMark rm; |
|
1566 Klass* k = throwable->klass(); |
|
1567 assert(k != NULL, "just checking"); |
|
1568 st->print("%s", k->external_name()); |
|
1569 oop msg = message(throwable); |
|
1570 if (msg != NULL) { |
|
1571 st->print(": %s", java_lang_String::as_utf8_string(msg)); |
|
1572 } |
|
1573 } |
|
1574 |
|
1575 // After this many redefines, the stack trace is unreliable. |
|
1576 const int MAX_VERSION = USHRT_MAX; |
|
1577 |
|
1578 static inline bool version_matches(Method* method, int version) { |
|
1579 assert(version < MAX_VERSION, "version is too big"); |
|
1580 return method != NULL && (method->constants()->version() == version); |
|
1581 } |
|
1582 |
|
1583 |
|
1584 // This class provides a simple wrapper over the internal structure of |
|
1585 // exception backtrace to insulate users of the backtrace from needing |
|
1586 // to know what it looks like. |
|
1587 class BacktraceBuilder: public StackObj { |
|
1588 friend class BacktraceIterator; |
|
1589 private: |
|
1590 Handle _backtrace; |
|
1591 objArrayOop _head; |
|
1592 typeArrayOop _methods; |
|
1593 typeArrayOop _bcis; |
|
1594 objArrayOop _mirrors; |
|
1595 typeArrayOop _names; // needed to insulate method name against redefinition |
|
1596 int _index; |
|
1597 NoSafepointVerifier _nsv; |
|
1598 |
|
1599 enum { |
|
1600 trace_methods_offset = java_lang_Throwable::trace_methods_offset, |
|
1601 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, |
|
1602 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
|
1603 trace_names_offset = java_lang_Throwable::trace_names_offset, |
|
1604 trace_next_offset = java_lang_Throwable::trace_next_offset, |
|
1605 trace_size = java_lang_Throwable::trace_size, |
|
1606 trace_chunk_size = java_lang_Throwable::trace_chunk_size |
|
1607 }; |
|
1608 |
|
1609 // get info out of chunks |
|
1610 static typeArrayOop get_methods(objArrayHandle chunk) { |
|
1611 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
|
1612 assert(methods != NULL, "method array should be initialized in backtrace"); |
|
1613 return methods; |
|
1614 } |
|
1615 static typeArrayOop get_bcis(objArrayHandle chunk) { |
|
1616 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
|
1617 assert(bcis != NULL, "bci array should be initialized in backtrace"); |
|
1618 return bcis; |
|
1619 } |
|
1620 static objArrayOop get_mirrors(objArrayHandle chunk) { |
|
1621 objArrayOop mirrors = objArrayOop(chunk->obj_at(trace_mirrors_offset)); |
|
1622 assert(mirrors != NULL, "mirror array should be initialized in backtrace"); |
|
1623 return mirrors; |
|
1624 } |
|
1625 static typeArrayOop get_names(objArrayHandle chunk) { |
|
1626 typeArrayOop names = typeArrayOop(chunk->obj_at(trace_names_offset)); |
|
1627 assert(names != NULL, "names array should be initialized in backtrace"); |
|
1628 return names; |
|
1629 } |
|
1630 |
|
1631 public: |
|
1632 |
|
1633 // constructor for new backtrace |
|
1634 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL), _names(NULL) { |
|
1635 expand(CHECK); |
|
1636 _backtrace = Handle(THREAD, _head); |
|
1637 _index = 0; |
|
1638 } |
|
1639 |
|
1640 BacktraceBuilder(Thread* thread, objArrayHandle backtrace) { |
|
1641 _methods = get_methods(backtrace); |
|
1642 _bcis = get_bcis(backtrace); |
|
1643 _mirrors = get_mirrors(backtrace); |
|
1644 _names = get_names(backtrace); |
|
1645 assert(_methods->length() == _bcis->length() && |
|
1646 _methods->length() == _mirrors->length() && |
|
1647 _mirrors->length() == _names->length(), |
|
1648 "method and source information arrays should match"); |
|
1649 |
|
1650 // head is the preallocated backtrace |
|
1651 _head = backtrace(); |
|
1652 _backtrace = Handle(thread, _head); |
|
1653 _index = 0; |
|
1654 } |
|
1655 |
|
1656 void expand(TRAPS) { |
|
1657 objArrayHandle old_head(THREAD, _head); |
|
1658 PauseNoSafepointVerifier pnsv(&_nsv); |
|
1659 |
|
1660 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); |
|
1661 objArrayHandle new_head(THREAD, head); |
|
1662 |
|
1663 typeArrayOop methods = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
|
1664 typeArrayHandle new_methods(THREAD, methods); |
|
1665 |
|
1666 typeArrayOop bcis = oopFactory::new_intArray(trace_chunk_size, CHECK); |
|
1667 typeArrayHandle new_bcis(THREAD, bcis); |
|
1668 |
|
1669 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
|
1670 objArrayHandle new_mirrors(THREAD, mirrors); |
|
1671 |
|
1672 typeArrayOop names = oopFactory::new_symbolArray(trace_chunk_size, CHECK); |
|
1673 typeArrayHandle new_names(THREAD, names); |
|
1674 |
|
1675 if (!old_head.is_null()) { |
|
1676 old_head->obj_at_put(trace_next_offset, new_head()); |
|
1677 } |
|
1678 new_head->obj_at_put(trace_methods_offset, new_methods()); |
|
1679 new_head->obj_at_put(trace_bcis_offset, new_bcis()); |
|
1680 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
|
1681 new_head->obj_at_put(trace_names_offset, new_names()); |
|
1682 |
|
1683 _head = new_head(); |
|
1684 _methods = new_methods(); |
|
1685 _bcis = new_bcis(); |
|
1686 _mirrors = new_mirrors(); |
|
1687 _names = new_names(); |
|
1688 _index = 0; |
|
1689 } |
|
1690 |
|
1691 oop backtrace() { |
|
1692 return _backtrace(); |
|
1693 } |
|
1694 |
|
1695 inline void push(Method* method, int bci, TRAPS) { |
|
1696 // Smear the -1 bci to 0 since the array only holds unsigned |
|
1697 // shorts. The later line number lookup would just smear the -1 |
|
1698 // to a 0 even if it could be recorded. |
|
1699 if (bci == SynchronizationEntryBCI) bci = 0; |
|
1700 |
|
1701 if (_index >= trace_chunk_size) { |
|
1702 methodHandle mhandle(THREAD, method); |
|
1703 expand(CHECK); |
|
1704 method = mhandle(); |
|
1705 } |
|
1706 |
|
1707 _methods->short_at_put(_index, method->orig_method_idnum()); |
|
1708 _bcis->int_at_put(_index, Backtrace::merge_bci_and_version(bci, method->constants()->version())); |
|
1709 |
|
1710 // Note:this doesn't leak symbols because the mirror in the backtrace keeps the |
|
1711 // klass owning the symbols alive so their refcounts aren't decremented. |
|
1712 Symbol* name = method->name(); |
|
1713 _names->symbol_at_put(_index, name); |
|
1714 |
|
1715 // We need to save the mirrors in the backtrace to keep the class |
|
1716 // from being unloaded while we still have this stack trace. |
|
1717 assert(method->method_holder()->java_mirror() != NULL, "never push null for mirror"); |
|
1718 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
|
1719 _index++; |
|
1720 } |
|
1721 |
|
1722 }; |
|
1723 |
|
1724 struct BacktraceElement : public StackObj { |
|
1725 int _method_id; |
|
1726 int _bci; |
|
1727 int _version; |
|
1728 Symbol* _name; |
|
1729 Handle _mirror; |
|
1730 BacktraceElement(Handle mirror, int mid, int version, int bci, Symbol* name) : |
|
1731 _mirror(mirror), _method_id(mid), _version(version), _bci(bci), _name(name) {} |
|
1732 }; |
|
1733 |
|
1734 class BacktraceIterator : public StackObj { |
|
1735 int _index; |
|
1736 objArrayHandle _result; |
|
1737 objArrayHandle _mirrors; |
|
1738 typeArrayHandle _methods; |
|
1739 typeArrayHandle _bcis; |
|
1740 typeArrayHandle _names; |
|
1741 |
|
1742 void init(objArrayHandle result, Thread* thread) { |
|
1743 // Get method id, bci, version and mirror from chunk |
|
1744 _result = result; |
|
1745 if (_result.not_null()) { |
|
1746 _methods = typeArrayHandle(thread, BacktraceBuilder::get_methods(_result)); |
|
1747 _bcis = typeArrayHandle(thread, BacktraceBuilder::get_bcis(_result)); |
|
1748 _mirrors = objArrayHandle(thread, BacktraceBuilder::get_mirrors(_result)); |
|
1749 _names = typeArrayHandle(thread, BacktraceBuilder::get_names(_result)); |
|
1750 _index = 0; |
|
1751 } |
|
1752 } |
|
1753 public: |
|
1754 BacktraceIterator(objArrayHandle result, Thread* thread) { |
|
1755 init(result, thread); |
|
1756 assert(_methods.is_null() || _methods->length() == java_lang_Throwable::trace_chunk_size, "lengths don't match"); |
|
1757 } |
|
1758 |
|
1759 BacktraceElement next(Thread* thread) { |
|
1760 BacktraceElement e (Handle(thread, _mirrors->obj_at(_index)), |
|
1761 _methods->short_at(_index), |
|
1762 Backtrace::version_at(_bcis->int_at(_index)), |
|
1763 Backtrace::bci_at(_bcis->int_at(_index)), |
|
1764 _names->symbol_at(_index)); |
|
1765 _index++; |
|
1766 |
|
1767 if (_index >= java_lang_Throwable::trace_chunk_size) { |
|
1768 int next_offset = java_lang_Throwable::trace_next_offset; |
|
1769 // Get next chunk |
|
1770 objArrayHandle result (thread, objArrayOop(_result->obj_at(next_offset))); |
|
1771 init(result, thread); |
|
1772 } |
|
1773 return e; |
|
1774 } |
|
1775 |
|
1776 bool repeat() { |
|
1777 return _result.not_null() && _mirrors->obj_at(_index) != NULL; |
|
1778 } |
|
1779 }; |
|
1780 |
|
1781 |
|
1782 // Print stack trace element to resource allocated buffer |
|
1783 static void print_stack_element_to_stream(outputStream* st, Handle mirror, int method_id, |
|
1784 int version, int bci, Symbol* name) { |
|
1785 ResourceMark rm; |
|
1786 |
|
1787 // Get strings and string lengths |
|
1788 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(mirror())); |
|
1789 const char* klass_name = holder->external_name(); |
|
1790 int buf_len = (int)strlen(klass_name); |
|
1791 |
|
1792 char* method_name = name->as_C_string(); |
|
1793 buf_len += (int)strlen(method_name); |
|
1794 |
|
1795 char* source_file_name = NULL; |
|
1796 Symbol* source = Backtrace::get_source_file_name(holder, version); |
|
1797 if (source != NULL) { |
|
1798 source_file_name = source->as_C_string(); |
|
1799 buf_len += (int)strlen(source_file_name); |
|
1800 } |
|
1801 |
|
1802 char *module_name = NULL, *module_version = NULL; |
|
1803 ModuleEntry* module = holder->module(); |
|
1804 if (module->is_named()) { |
|
1805 module_name = module->name()->as_C_string(); |
|
1806 buf_len += (int)strlen(module_name); |
|
1807 if (module->version() != NULL) { |
|
1808 module_version = module->version()->as_C_string(); |
|
1809 buf_len += (int)strlen(module_version); |
|
1810 } |
|
1811 } |
|
1812 |
|
1813 // Allocate temporary buffer with extra space for formatting and line number |
|
1814 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); |
|
1815 |
|
1816 // Print stack trace line in buffer |
|
1817 sprintf(buf, "\tat %s.%s(", klass_name, method_name); |
|
1818 |
|
1819 // Print module information |
|
1820 if (module_name != NULL) { |
|
1821 if (module_version != NULL) { |
|
1822 sprintf(buf + (int)strlen(buf), "%s@%s/", module_name, module_version); |
|
1823 } else { |
|
1824 sprintf(buf + (int)strlen(buf), "%s/", module_name); |
|
1825 } |
|
1826 } |
|
1827 |
|
1828 // The method can be NULL if the requested class version is gone |
|
1829 Method* method = holder->method_with_orig_idnum(method_id, version); |
|
1830 if (!version_matches(method, version)) { |
|
1831 strcat(buf, "Redefined)"); |
|
1832 } else { |
|
1833 int line_number = Backtrace::get_line_number(method, bci); |
|
1834 if (line_number == -2) { |
|
1835 strcat(buf, "Native Method)"); |
|
1836 } else { |
|
1837 if (source_file_name != NULL && (line_number != -1)) { |
|
1838 // Sourcename and linenumber |
|
1839 sprintf(buf + (int)strlen(buf), "%s:%d)", source_file_name, line_number); |
|
1840 } else if (source_file_name != NULL) { |
|
1841 // Just sourcename |
|
1842 sprintf(buf + (int)strlen(buf), "%s)", source_file_name); |
|
1843 } else { |
|
1844 // Neither sourcename nor linenumber |
|
1845 sprintf(buf + (int)strlen(buf), "Unknown Source)"); |
|
1846 } |
|
1847 CompiledMethod* nm = method->code(); |
|
1848 if (WizardMode && nm != NULL) { |
|
1849 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
|
1850 } |
|
1851 } |
|
1852 } |
|
1853 |
|
1854 st->print_cr("%s", buf); |
|
1855 } |
|
1856 |
|
1857 void java_lang_Throwable::print_stack_element(outputStream *st, const methodHandle& method, int bci) { |
|
1858 Handle mirror (Thread::current(), method->method_holder()->java_mirror()); |
|
1859 int method_id = method->orig_method_idnum(); |
|
1860 int version = method->constants()->version(); |
|
1861 print_stack_element_to_stream(st, mirror, method_id, version, bci, method->name()); |
|
1862 } |
|
1863 |
|
1864 /** |
|
1865 * Print the throwable message and its stack trace plus all causes by walking the |
|
1866 * cause chain. The output looks the same as of Throwable.printStackTrace(). |
|
1867 */ |
|
1868 void java_lang_Throwable::print_stack_trace(Handle throwable, outputStream* st) { |
|
1869 // First, print the message. |
|
1870 print(throwable(), st); |
|
1871 st->cr(); |
|
1872 |
|
1873 // Now print the stack trace. |
|
1874 Thread* THREAD = Thread::current(); |
|
1875 while (throwable.not_null()) { |
|
1876 objArrayHandle result (THREAD, objArrayOop(backtrace(throwable()))); |
|
1877 if (result.is_null()) { |
|
1878 st->print_raw_cr("\t<<no stack trace available>>"); |
|
1879 return; |
|
1880 } |
|
1881 BacktraceIterator iter(result, THREAD); |
|
1882 |
|
1883 while (iter.repeat()) { |
|
1884 BacktraceElement bte = iter.next(THREAD); |
|
1885 print_stack_element_to_stream(st, bte._mirror, bte._method_id, bte._version, bte._bci, bte._name); |
|
1886 } |
|
1887 { |
|
1888 // Call getCause() which doesn't necessarily return the _cause field. |
|
1889 EXCEPTION_MARK; |
|
1890 JavaValue cause(T_OBJECT); |
|
1891 JavaCalls::call_virtual(&cause, |
|
1892 throwable, |
|
1893 throwable->klass(), |
|
1894 vmSymbols::getCause_name(), |
|
1895 vmSymbols::void_throwable_signature(), |
|
1896 THREAD); |
|
1897 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. |
|
1898 if (HAS_PENDING_EXCEPTION) { |
|
1899 CLEAR_PENDING_EXCEPTION; |
|
1900 throwable = Handle(); |
|
1901 } else { |
|
1902 throwable = Handle(THREAD, (oop) cause.get_jobject()); |
|
1903 if (throwable.not_null()) { |
|
1904 st->print("Caused by: "); |
|
1905 print(throwable(), st); |
|
1906 st->cr(); |
|
1907 } |
|
1908 } |
|
1909 } |
|
1910 } |
|
1911 } |
|
1912 |
|
1913 /** |
|
1914 * Print the throwable stack trace by calling the Java method java.lang.Throwable.printStackTrace(). |
|
1915 */ |
|
1916 void java_lang_Throwable::java_printStackTrace(Handle throwable, TRAPS) { |
|
1917 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "Throwable instance expected"); |
|
1918 JavaValue result(T_VOID); |
|
1919 JavaCalls::call_virtual(&result, |
|
1920 throwable, |
|
1921 SystemDictionary::Throwable_klass(), |
|
1922 vmSymbols::printStackTrace_name(), |
|
1923 vmSymbols::void_method_signature(), |
|
1924 THREAD); |
|
1925 } |
|
1926 |
|
1927 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, const methodHandle& method, TRAPS) { |
|
1928 if (!StackTraceInThrowable) return; |
|
1929 ResourceMark rm(THREAD); |
|
1930 |
|
1931 // Start out by clearing the backtrace for this object, in case the VM |
|
1932 // runs out of memory while allocating the stack trace |
|
1933 set_backtrace(throwable(), NULL); |
|
1934 // Clear lazily constructed Java level stacktrace if refilling occurs |
|
1935 // This is unnecessary in 1.7+ but harmless |
|
1936 clear_stacktrace(throwable()); |
|
1937 |
|
1938 int max_depth = MaxJavaStackTraceDepth; |
|
1939 JavaThread* thread = (JavaThread*)THREAD; |
|
1940 |
|
1941 BacktraceBuilder bt(CHECK); |
|
1942 |
|
1943 // If there is no Java frame just return the method that was being called |
|
1944 // with bci 0 |
|
1945 if (!thread->has_last_Java_frame()) { |
|
1946 if (max_depth >= 1 && method() != NULL) { |
|
1947 bt.push(method(), 0, CHECK); |
|
1948 log_info(stacktrace)("%s, %d", throwable->klass()->external_name(), 1); |
|
1949 set_depth(throwable(), 1); |
|
1950 set_backtrace(throwable(), bt.backtrace()); |
|
1951 } |
|
1952 return; |
|
1953 } |
|
1954 |
|
1955 // Instead of using vframe directly, this version of fill_in_stack_trace |
|
1956 // basically handles everything by hand. This significantly improved the |
|
1957 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. |
|
1958 // See bug 6333838 for more details. |
|
1959 // The "ASSERT" here is to verify this method generates the exactly same stack |
|
1960 // trace as utilizing vframe. |
|
1961 #ifdef ASSERT |
|
1962 vframeStream st(thread); |
|
1963 methodHandle st_method(THREAD, st.method()); |
|
1964 #endif |
|
1965 int total_count = 0; |
|
1966 RegisterMap map(thread, false); |
|
1967 int decode_offset = 0; |
|
1968 CompiledMethod* nm = NULL; |
|
1969 bool skip_fillInStackTrace_check = false; |
|
1970 bool skip_throwableInit_check = false; |
|
1971 bool skip_hidden = !ShowHiddenFrames; |
|
1972 |
|
1973 for (frame fr = thread->last_frame(); max_depth != total_count;) { |
|
1974 Method* method = NULL; |
|
1975 int bci = 0; |
|
1976 |
|
1977 // Compiled java method case. |
|
1978 if (decode_offset != 0) { |
|
1979 DebugInfoReadStream stream(nm, decode_offset); |
|
1980 decode_offset = stream.read_int(); |
|
1981 method = (Method*)nm->metadata_at(stream.read_int()); |
|
1982 bci = stream.read_bci(); |
|
1983 } else { |
|
1984 if (fr.is_first_frame()) break; |
|
1985 address pc = fr.pc(); |
|
1986 if (fr.is_interpreted_frame()) { |
|
1987 address bcp = fr.interpreter_frame_bcp(); |
|
1988 method = fr.interpreter_frame_method(); |
|
1989 bci = method->bci_from(bcp); |
|
1990 fr = fr.sender(&map); |
|
1991 } else { |
|
1992 CodeBlob* cb = fr.cb(); |
|
1993 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL |
|
1994 // but non nmethod |
|
1995 fr = fr.sender(&map); |
|
1996 if (cb == NULL || !cb->is_compiled()) { |
|
1997 continue; |
|
1998 } |
|
1999 nm = cb->as_compiled_method(); |
|
2000 if (nm->method()->is_native()) { |
|
2001 method = nm->method(); |
|
2002 bci = 0; |
|
2003 } else { |
|
2004 PcDesc* pd = nm->pc_desc_at(pc); |
|
2005 decode_offset = pd->scope_decode_offset(); |
|
2006 // if decode_offset is not equal to 0, it will execute the |
|
2007 // "compiled java method case" at the beginning of the loop. |
|
2008 continue; |
|
2009 } |
|
2010 } |
|
2011 } |
|
2012 #ifdef ASSERT |
|
2013 assert(st_method() == method && st.bci() == bci, |
|
2014 "Wrong stack trace"); |
|
2015 st.next(); |
|
2016 // vframeStream::method isn't GC-safe so store off a copy |
|
2017 // of the Method* in case we GC. |
|
2018 if (!st.at_end()) { |
|
2019 st_method = st.method(); |
|
2020 } |
|
2021 #endif |
|
2022 |
|
2023 // the format of the stacktrace will be: |
|
2024 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
|
2025 // - 0 or more <init> methods for the exception class (skipped) |
|
2026 // - rest of the stack |
|
2027 |
|
2028 if (!skip_fillInStackTrace_check) { |
|
2029 if (method->name() == vmSymbols::fillInStackTrace_name() && |
|
2030 throwable->is_a(method->method_holder())) { |
|
2031 continue; |
|
2032 } |
|
2033 else { |
|
2034 skip_fillInStackTrace_check = true; // gone past them all |
|
2035 } |
|
2036 } |
|
2037 if (!skip_throwableInit_check) { |
|
2038 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
|
2039 |
|
2040 // skip <init> methods of the exception class and superclasses |
|
2041 // This is simlar to classic VM. |
|
2042 if (method->name() == vmSymbols::object_initializer_name() && |
|
2043 throwable->is_a(method->method_holder())) { |
|
2044 continue; |
|
2045 } else { |
|
2046 // there are none or we've seen them all - either way stop checking |
|
2047 skip_throwableInit_check = true; |
|
2048 } |
|
2049 } |
|
2050 if (method->is_hidden()) { |
|
2051 if (skip_hidden) continue; |
|
2052 } |
|
2053 bt.push(method, bci, CHECK); |
|
2054 total_count++; |
|
2055 } |
|
2056 |
|
2057 log_info(stacktrace)("%s, %d", throwable->klass()->external_name(), total_count); |
|
2058 |
|
2059 // Put completed stack trace into throwable object |
|
2060 set_backtrace(throwable(), bt.backtrace()); |
|
2061 set_depth(throwable(), total_count); |
|
2062 } |
|
2063 |
|
2064 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, const methodHandle& method) { |
|
2065 // No-op if stack trace is disabled |
|
2066 if (!StackTraceInThrowable) { |
|
2067 return; |
|
2068 } |
|
2069 |
|
2070 // Disable stack traces for some preallocated out of memory errors |
|
2071 if (!Universe::should_fill_in_stack_trace(throwable)) { |
|
2072 return; |
|
2073 } |
|
2074 |
|
2075 PRESERVE_EXCEPTION_MARK; |
|
2076 |
|
2077 JavaThread* thread = JavaThread::active(); |
|
2078 fill_in_stack_trace(throwable, method, thread); |
|
2079 // ignore exceptions thrown during stack trace filling |
|
2080 CLEAR_PENDING_EXCEPTION; |
|
2081 } |
|
2082 |
|
2083 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { |
|
2084 // Allocate stack trace - backtrace is created but not filled in |
|
2085 |
|
2086 // No-op if stack trace is disabled |
|
2087 if (!StackTraceInThrowable) return; |
|
2088 BacktraceBuilder bt(CHECK); // creates a backtrace |
|
2089 set_backtrace(throwable(), bt.backtrace()); |
|
2090 } |
|
2091 |
|
2092 |
|
2093 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { |
|
2094 // Fill in stack trace into preallocated backtrace (no GC) |
|
2095 |
|
2096 // No-op if stack trace is disabled |
|
2097 if (!StackTraceInThrowable) return; |
|
2098 |
|
2099 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
|
2100 |
|
2101 JavaThread* THREAD = JavaThread::current(); |
|
2102 |
|
2103 objArrayHandle backtrace (THREAD, (objArrayOop)java_lang_Throwable::backtrace(throwable())); |
|
2104 assert(backtrace.not_null(), "backtrace should have been preallocated"); |
|
2105 |
|
2106 ResourceMark rm(THREAD); |
|
2107 vframeStream st(THREAD); |
|
2108 |
|
2109 BacktraceBuilder bt(THREAD, backtrace); |
|
2110 |
|
2111 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init |
|
2112 // methods as preallocated errors aren't created by "java" code. |
|
2113 |
|
2114 // fill in as much stack trace as possible |
|
2115 int chunk_count = 0; |
|
2116 for (;!st.at_end(); st.next()) { |
|
2117 bt.push(st.method(), st.bci(), CHECK); |
|
2118 chunk_count++; |
|
2119 |
|
2120 // Bail-out for deep stacks |
|
2121 if (chunk_count >= trace_chunk_size) break; |
|
2122 } |
|
2123 set_depth(throwable(), chunk_count); |
|
2124 log_info(stacktrace)("%s, %d", throwable->klass()->external_name(), chunk_count); |
|
2125 |
|
2126 // We support the Throwable immutability protocol defined for Java 7. |
|
2127 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
|
2128 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
|
2129 } |
|
2130 |
|
2131 void java_lang_Throwable::get_stack_trace_elements(Handle throwable, |
|
2132 objArrayHandle stack_trace_array_h, TRAPS) { |
|
2133 |
|
2134 if (throwable.is_null() || stack_trace_array_h.is_null()) { |
|
2135 THROW(vmSymbols::java_lang_NullPointerException()); |
|
2136 } |
|
2137 |
|
2138 assert(stack_trace_array_h->is_objArray(), "Stack trace array should be an array of StackTraceElenent"); |
|
2139 |
|
2140 if (stack_trace_array_h->length() != depth(throwable())) { |
|
2141 THROW(vmSymbols::java_lang_IndexOutOfBoundsException()); |
|
2142 } |
|
2143 |
|
2144 objArrayHandle result(THREAD, objArrayOop(backtrace(throwable()))); |
|
2145 BacktraceIterator iter(result, THREAD); |
|
2146 |
|
2147 int index = 0; |
|
2148 while (iter.repeat()) { |
|
2149 BacktraceElement bte = iter.next(THREAD); |
|
2150 |
|
2151 Handle stack_trace_element(THREAD, stack_trace_array_h->obj_at(index++)); |
|
2152 |
|
2153 if (stack_trace_element.is_null()) { |
|
2154 THROW(vmSymbols::java_lang_NullPointerException()); |
|
2155 } |
|
2156 |
|
2157 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(bte._mirror())); |
|
2158 methodHandle method (THREAD, holder->method_with_orig_idnum(bte._method_id, bte._version)); |
|
2159 |
|
2160 java_lang_StackTraceElement::fill_in(stack_trace_element, holder, |
|
2161 method, |
|
2162 bte._version, |
|
2163 bte._bci, |
|
2164 bte._name, CHECK); |
|
2165 } |
|
2166 } |
|
2167 |
|
2168 oop java_lang_StackTraceElement::create(const methodHandle& method, int bci, TRAPS) { |
|
2169 // Allocate java.lang.StackTraceElement instance |
|
2170 InstanceKlass* k = SystemDictionary::StackTraceElement_klass(); |
|
2171 assert(k != NULL, "must be loaded in 1.4+"); |
|
2172 if (k->should_be_initialized()) { |
|
2173 k->initialize(CHECK_0); |
|
2174 } |
|
2175 |
|
2176 Handle element = k->allocate_instance_handle(CHECK_0); |
|
2177 |
|
2178 int version = method->constants()->version(); |
|
2179 fill_in(element, method->method_holder(), method, version, bci, method->name(), CHECK_0); |
|
2180 return element(); |
|
2181 } |
|
2182 |
|
2183 void java_lang_StackTraceElement::fill_in(Handle element, |
|
2184 InstanceKlass* holder, const methodHandle& method, |
|
2185 int version, int bci, Symbol* name, TRAPS) { |
|
2186 assert(element->is_a(SystemDictionary::StackTraceElement_klass()), "sanity check"); |
|
2187 |
|
2188 // Fill in class name |
|
2189 ResourceMark rm(THREAD); |
|
2190 const char* str = holder->external_name(); |
|
2191 oop classname = StringTable::intern((char*) str, CHECK); |
|
2192 java_lang_StackTraceElement::set_declaringClass(element(), classname); |
|
2193 java_lang_StackTraceElement::set_declaringClassObject(element(), holder->java_mirror()); |
|
2194 |
|
2195 oop loader = holder->class_loader(); |
|
2196 if (loader != NULL) { |
|
2197 oop loader_name = java_lang_ClassLoader::name(loader); |
|
2198 if (loader_name != NULL) |
|
2199 java_lang_StackTraceElement::set_classLoaderName(element(), loader_name); |
|
2200 } |
|
2201 |
|
2202 // Fill in method name |
|
2203 oop methodname = StringTable::intern(name, CHECK); |
|
2204 java_lang_StackTraceElement::set_methodName(element(), methodname); |
|
2205 |
|
2206 // Fill in module name and version |
|
2207 ModuleEntry* module = holder->module(); |
|
2208 if (module->is_named()) { |
|
2209 oop module_name = StringTable::intern(module->name(), CHECK); |
|
2210 java_lang_StackTraceElement::set_moduleName(element(), module_name); |
|
2211 oop module_version; |
|
2212 if (module->version() != NULL) { |
|
2213 module_version = StringTable::intern(module->version(), CHECK); |
|
2214 } else { |
|
2215 module_version = NULL; |
|
2216 } |
|
2217 java_lang_StackTraceElement::set_moduleVersion(element(), module_version); |
|
2218 } |
|
2219 |
|
2220 if (method() == NULL || !version_matches(method(), version)) { |
|
2221 // The method was redefined, accurate line number information isn't available |
|
2222 java_lang_StackTraceElement::set_fileName(element(), NULL); |
|
2223 java_lang_StackTraceElement::set_lineNumber(element(), -1); |
|
2224 } else { |
|
2225 // Fill in source file name and line number. |
|
2226 Symbol* source = Backtrace::get_source_file_name(holder, version); |
|
2227 if (ShowHiddenFrames && source == NULL) |
|
2228 source = vmSymbols::unknown_class_name(); |
|
2229 oop filename = StringTable::intern(source, CHECK); |
|
2230 java_lang_StackTraceElement::set_fileName(element(), filename); |
|
2231 |
|
2232 int line_number = Backtrace::get_line_number(method, bci); |
|
2233 java_lang_StackTraceElement::set_lineNumber(element(), line_number); |
|
2234 } |
|
2235 } |
|
2236 |
|
2237 Method* java_lang_StackFrameInfo::get_method(Handle stackFrame, InstanceKlass* holder, TRAPS) { |
|
2238 Handle mname(THREAD, stackFrame->obj_field(_memberName_offset)); |
|
2239 Method* method = (Method*)java_lang_invoke_MemberName::vmtarget(mname()); |
|
2240 // we should expand MemberName::name when Throwable uses StackTrace |
|
2241 // MethodHandles::expand_MemberName(mname, MethodHandles::_suppress_defc|MethodHandles::_suppress_type, CHECK_NULL); |
|
2242 return method; |
|
2243 } |
|
2244 |
|
2245 void java_lang_StackFrameInfo::set_method_and_bci(Handle stackFrame, const methodHandle& method, int bci, TRAPS) { |
|
2246 // set Method* or mid/cpref |
|
2247 Handle mname(Thread::current(), stackFrame->obj_field(_memberName_offset)); |
|
2248 InstanceKlass* ik = method->method_holder(); |
|
2249 CallInfo info(method(), ik, CHECK); |
|
2250 MethodHandles::init_method_MemberName(mname, info); |
|
2251 // set bci |
|
2252 java_lang_StackFrameInfo::set_bci(stackFrame(), bci); |
|
2253 // method may be redefined; store the version |
|
2254 int version = method->constants()->version(); |
|
2255 assert((jushort)version == version, "version should be short"); |
|
2256 java_lang_StackFrameInfo::set_version(stackFrame(), (short)version); |
|
2257 } |
|
2258 |
|
2259 void java_lang_StackFrameInfo::to_stack_trace_element(Handle stackFrame, Handle stack_trace_element, TRAPS) { |
|
2260 ResourceMark rm(THREAD); |
|
2261 Handle k (THREAD, stackFrame->obj_field(_declaringClass_offset)); |
|
2262 InstanceKlass* holder = InstanceKlass::cast(java_lang_Class::as_Klass(k())); |
|
2263 Method* method = java_lang_StackFrameInfo::get_method(stackFrame, holder, CHECK); |
|
2264 |
|
2265 short version = stackFrame->short_field(_version_offset); |
|
2266 short bci = stackFrame->short_field(_bci_offset); |
|
2267 Symbol* name = method->name(); |
|
2268 java_lang_StackTraceElement::fill_in(stack_trace_element, holder, method, version, bci, name, CHECK); |
|
2269 } |
|
2270 |
|
2271 void java_lang_StackFrameInfo::compute_offsets() { |
|
2272 Klass* k = SystemDictionary::StackFrameInfo_klass(); |
|
2273 compute_offset(_declaringClass_offset, k, vmSymbols::declaringClass_name(), vmSymbols::class_signature()); |
|
2274 compute_offset(_memberName_offset, k, vmSymbols::memberName_name(), vmSymbols::object_signature()); |
|
2275 compute_offset(_bci_offset, k, vmSymbols::bci_name(), vmSymbols::short_signature()); |
|
2276 STACKFRAMEINFO_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
|
2277 } |
|
2278 |
|
2279 void java_lang_LiveStackFrameInfo::compute_offsets() { |
|
2280 Klass* k = SystemDictionary::LiveStackFrameInfo_klass(); |
|
2281 compute_offset(_monitors_offset, k, vmSymbols::monitors_name(), vmSymbols::object_array_signature()); |
|
2282 compute_offset(_locals_offset, k, vmSymbols::locals_name(), vmSymbols::object_array_signature()); |
|
2283 compute_offset(_operands_offset, k, vmSymbols::operands_name(), vmSymbols::object_array_signature()); |
|
2284 compute_offset(_mode_offset, k, vmSymbols::mode_name(), vmSymbols::int_signature()); |
|
2285 } |
|
2286 |
|
2287 void java_lang_reflect_AccessibleObject::compute_offsets() { |
|
2288 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
2289 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
|
2290 } |
|
2291 |
|
2292 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { |
|
2293 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2294 return (jboolean) reflect->bool_field(override_offset); |
|
2295 } |
|
2296 |
|
2297 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { |
|
2298 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2299 reflect->bool_field_put(override_offset, (int) value); |
|
2300 } |
|
2301 |
|
2302 void java_lang_reflect_Method::compute_offsets() { |
|
2303 Klass* k = SystemDictionary::reflect_Method_klass(); |
|
2304 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
|
2305 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
2306 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
|
2307 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
|
2308 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
|
2309 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
|
2310 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
|
2311 // The generic signature and annotations fields are only present in 1.5 |
|
2312 signature_offset = -1; |
|
2313 annotations_offset = -1; |
|
2314 parameter_annotations_offset = -1; |
|
2315 annotation_default_offset = -1; |
|
2316 type_annotations_offset = -1; |
|
2317 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
|
2318 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
|
2319 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
|
2320 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
|
2321 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
|
2322 } |
|
2323 |
|
2324 Handle java_lang_reflect_Method::create(TRAPS) { |
|
2325 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2326 Klass* klass = SystemDictionary::reflect_Method_klass(); |
|
2327 // This class is eagerly initialized during VM initialization, since we keep a refence |
|
2328 // to one of the methods |
|
2329 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
|
2330 return InstanceKlass::cast(klass)->allocate_instance_handle(THREAD); |
|
2331 } |
|
2332 |
|
2333 oop java_lang_reflect_Method::clazz(oop reflect) { |
|
2334 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2335 return reflect->obj_field(clazz_offset); |
|
2336 } |
|
2337 |
|
2338 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { |
|
2339 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2340 reflect->obj_field_put(clazz_offset, value); |
|
2341 } |
|
2342 |
|
2343 int java_lang_reflect_Method::slot(oop reflect) { |
|
2344 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2345 return reflect->int_field(slot_offset); |
|
2346 } |
|
2347 |
|
2348 void java_lang_reflect_Method::set_slot(oop reflect, int value) { |
|
2349 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2350 reflect->int_field_put(slot_offset, value); |
|
2351 } |
|
2352 |
|
2353 oop java_lang_reflect_Method::name(oop method) { |
|
2354 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2355 return method->obj_field(name_offset); |
|
2356 } |
|
2357 |
|
2358 void java_lang_reflect_Method::set_name(oop method, oop value) { |
|
2359 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2360 method->obj_field_put(name_offset, value); |
|
2361 } |
|
2362 |
|
2363 oop java_lang_reflect_Method::return_type(oop method) { |
|
2364 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2365 return method->obj_field(returnType_offset); |
|
2366 } |
|
2367 |
|
2368 void java_lang_reflect_Method::set_return_type(oop method, oop value) { |
|
2369 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2370 method->obj_field_put(returnType_offset, value); |
|
2371 } |
|
2372 |
|
2373 oop java_lang_reflect_Method::parameter_types(oop method) { |
|
2374 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2375 return method->obj_field(parameterTypes_offset); |
|
2376 } |
|
2377 |
|
2378 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { |
|
2379 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2380 method->obj_field_put(parameterTypes_offset, value); |
|
2381 } |
|
2382 |
|
2383 oop java_lang_reflect_Method::exception_types(oop method) { |
|
2384 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2385 return method->obj_field(exceptionTypes_offset); |
|
2386 } |
|
2387 |
|
2388 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { |
|
2389 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2390 method->obj_field_put(exceptionTypes_offset, value); |
|
2391 } |
|
2392 |
|
2393 int java_lang_reflect_Method::modifiers(oop method) { |
|
2394 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2395 return method->int_field(modifiers_offset); |
|
2396 } |
|
2397 |
|
2398 void java_lang_reflect_Method::set_modifiers(oop method, int value) { |
|
2399 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2400 method->int_field_put(modifiers_offset, value); |
|
2401 } |
|
2402 |
|
2403 bool java_lang_reflect_Method::has_signature_field() { |
|
2404 return (signature_offset >= 0); |
|
2405 } |
|
2406 |
|
2407 oop java_lang_reflect_Method::signature(oop method) { |
|
2408 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2409 assert(has_signature_field(), "signature field must be present"); |
|
2410 return method->obj_field(signature_offset); |
|
2411 } |
|
2412 |
|
2413 void java_lang_reflect_Method::set_signature(oop method, oop value) { |
|
2414 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2415 assert(has_signature_field(), "signature field must be present"); |
|
2416 method->obj_field_put(signature_offset, value); |
|
2417 } |
|
2418 |
|
2419 bool java_lang_reflect_Method::has_annotations_field() { |
|
2420 return (annotations_offset >= 0); |
|
2421 } |
|
2422 |
|
2423 oop java_lang_reflect_Method::annotations(oop method) { |
|
2424 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2425 assert(has_annotations_field(), "annotations field must be present"); |
|
2426 return method->obj_field(annotations_offset); |
|
2427 } |
|
2428 |
|
2429 void java_lang_reflect_Method::set_annotations(oop method, oop value) { |
|
2430 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2431 assert(has_annotations_field(), "annotations field must be present"); |
|
2432 method->obj_field_put(annotations_offset, value); |
|
2433 } |
|
2434 |
|
2435 bool java_lang_reflect_Method::has_parameter_annotations_field() { |
|
2436 return (parameter_annotations_offset >= 0); |
|
2437 } |
|
2438 |
|
2439 oop java_lang_reflect_Method::parameter_annotations(oop method) { |
|
2440 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2441 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); |
|
2442 return method->obj_field(parameter_annotations_offset); |
|
2443 } |
|
2444 |
|
2445 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { |
|
2446 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2447 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); |
|
2448 method->obj_field_put(parameter_annotations_offset, value); |
|
2449 } |
|
2450 |
|
2451 bool java_lang_reflect_Method::has_annotation_default_field() { |
|
2452 return (annotation_default_offset >= 0); |
|
2453 } |
|
2454 |
|
2455 oop java_lang_reflect_Method::annotation_default(oop method) { |
|
2456 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2457 assert(has_annotation_default_field(), "annotation default field must be present"); |
|
2458 return method->obj_field(annotation_default_offset); |
|
2459 } |
|
2460 |
|
2461 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { |
|
2462 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2463 assert(has_annotation_default_field(), "annotation default field must be present"); |
|
2464 method->obj_field_put(annotation_default_offset, value); |
|
2465 } |
|
2466 |
|
2467 bool java_lang_reflect_Method::has_type_annotations_field() { |
|
2468 return (type_annotations_offset >= 0); |
|
2469 } |
|
2470 |
|
2471 oop java_lang_reflect_Method::type_annotations(oop method) { |
|
2472 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2473 assert(has_type_annotations_field(), "type_annotations field must be present"); |
|
2474 return method->obj_field(type_annotations_offset); |
|
2475 } |
|
2476 |
|
2477 void java_lang_reflect_Method::set_type_annotations(oop method, oop value) { |
|
2478 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2479 assert(has_type_annotations_field(), "type_annotations field must be present"); |
|
2480 method->obj_field_put(type_annotations_offset, value); |
|
2481 } |
|
2482 |
|
2483 void java_lang_reflect_Constructor::compute_offsets() { |
|
2484 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
|
2485 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
|
2486 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
|
2487 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
|
2488 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
|
2489 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
|
2490 // The generic signature and annotations fields are only present in 1.5 |
|
2491 signature_offset = -1; |
|
2492 annotations_offset = -1; |
|
2493 parameter_annotations_offset = -1; |
|
2494 type_annotations_offset = -1; |
|
2495 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
|
2496 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
|
2497 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
|
2498 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
|
2499 } |
|
2500 |
|
2501 Handle java_lang_reflect_Constructor::create(TRAPS) { |
|
2502 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2503 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
|
2504 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
|
2505 InstanceKlass* ik = InstanceKlass::cast(k); |
|
2506 // Ensure it is initialized |
|
2507 ik->initialize(CHECK_NH); |
|
2508 return ik->allocate_instance_handle(THREAD); |
|
2509 } |
|
2510 |
|
2511 oop java_lang_reflect_Constructor::clazz(oop reflect) { |
|
2512 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2513 return reflect->obj_field(clazz_offset); |
|
2514 } |
|
2515 |
|
2516 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { |
|
2517 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2518 reflect->obj_field_put(clazz_offset, value); |
|
2519 } |
|
2520 |
|
2521 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { |
|
2522 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2523 return constructor->obj_field(parameterTypes_offset); |
|
2524 } |
|
2525 |
|
2526 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { |
|
2527 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2528 constructor->obj_field_put(parameterTypes_offset, value); |
|
2529 } |
|
2530 |
|
2531 oop java_lang_reflect_Constructor::exception_types(oop constructor) { |
|
2532 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2533 return constructor->obj_field(exceptionTypes_offset); |
|
2534 } |
|
2535 |
|
2536 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { |
|
2537 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2538 constructor->obj_field_put(exceptionTypes_offset, value); |
|
2539 } |
|
2540 |
|
2541 int java_lang_reflect_Constructor::slot(oop reflect) { |
|
2542 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2543 return reflect->int_field(slot_offset); |
|
2544 } |
|
2545 |
|
2546 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { |
|
2547 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2548 reflect->int_field_put(slot_offset, value); |
|
2549 } |
|
2550 |
|
2551 int java_lang_reflect_Constructor::modifiers(oop constructor) { |
|
2552 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2553 return constructor->int_field(modifiers_offset); |
|
2554 } |
|
2555 |
|
2556 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { |
|
2557 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2558 constructor->int_field_put(modifiers_offset, value); |
|
2559 } |
|
2560 |
|
2561 bool java_lang_reflect_Constructor::has_signature_field() { |
|
2562 return (signature_offset >= 0); |
|
2563 } |
|
2564 |
|
2565 oop java_lang_reflect_Constructor::signature(oop constructor) { |
|
2566 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2567 assert(has_signature_field(), "signature field must be present"); |
|
2568 return constructor->obj_field(signature_offset); |
|
2569 } |
|
2570 |
|
2571 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { |
|
2572 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2573 assert(has_signature_field(), "signature field must be present"); |
|
2574 constructor->obj_field_put(signature_offset, value); |
|
2575 } |
|
2576 |
|
2577 bool java_lang_reflect_Constructor::has_annotations_field() { |
|
2578 return (annotations_offset >= 0); |
|
2579 } |
|
2580 |
|
2581 oop java_lang_reflect_Constructor::annotations(oop constructor) { |
|
2582 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2583 assert(has_annotations_field(), "annotations field must be present"); |
|
2584 return constructor->obj_field(annotations_offset); |
|
2585 } |
|
2586 |
|
2587 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { |
|
2588 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2589 assert(has_annotations_field(), "annotations field must be present"); |
|
2590 constructor->obj_field_put(annotations_offset, value); |
|
2591 } |
|
2592 |
|
2593 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { |
|
2594 return (parameter_annotations_offset >= 0); |
|
2595 } |
|
2596 |
|
2597 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { |
|
2598 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2599 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); |
|
2600 return method->obj_field(parameter_annotations_offset); |
|
2601 } |
|
2602 |
|
2603 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { |
|
2604 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2605 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); |
|
2606 method->obj_field_put(parameter_annotations_offset, value); |
|
2607 } |
|
2608 |
|
2609 bool java_lang_reflect_Constructor::has_type_annotations_field() { |
|
2610 return (type_annotations_offset >= 0); |
|
2611 } |
|
2612 |
|
2613 oop java_lang_reflect_Constructor::type_annotations(oop constructor) { |
|
2614 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2615 assert(has_type_annotations_field(), "type_annotations field must be present"); |
|
2616 return constructor->obj_field(type_annotations_offset); |
|
2617 } |
|
2618 |
|
2619 void java_lang_reflect_Constructor::set_type_annotations(oop constructor, oop value) { |
|
2620 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2621 assert(has_type_annotations_field(), "type_annotations field must be present"); |
|
2622 constructor->obj_field_put(type_annotations_offset, value); |
|
2623 } |
|
2624 |
|
2625 void java_lang_reflect_Field::compute_offsets() { |
|
2626 Klass* k = SystemDictionary::reflect_Field_klass(); |
|
2627 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
|
2628 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
2629 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
|
2630 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
|
2631 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
|
2632 // The generic signature and annotations fields are only present in 1.5 |
|
2633 signature_offset = -1; |
|
2634 annotations_offset = -1; |
|
2635 type_annotations_offset = -1; |
|
2636 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
|
2637 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
|
2638 compute_optional_offset(type_annotations_offset, k, vmSymbols::type_annotations_name(), vmSymbols::byte_array_signature()); |
|
2639 } |
|
2640 |
|
2641 Handle java_lang_reflect_Field::create(TRAPS) { |
|
2642 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2643 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
|
2644 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
|
2645 InstanceKlass* ik = InstanceKlass::cast(k); |
|
2646 // Ensure it is initialized |
|
2647 ik->initialize(CHECK_NH); |
|
2648 return ik->allocate_instance_handle(THREAD); |
|
2649 } |
|
2650 |
|
2651 oop java_lang_reflect_Field::clazz(oop reflect) { |
|
2652 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2653 return reflect->obj_field(clazz_offset); |
|
2654 } |
|
2655 |
|
2656 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { |
|
2657 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2658 reflect->obj_field_put(clazz_offset, value); |
|
2659 } |
|
2660 |
|
2661 oop java_lang_reflect_Field::name(oop field) { |
|
2662 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2663 return field->obj_field(name_offset); |
|
2664 } |
|
2665 |
|
2666 void java_lang_reflect_Field::set_name(oop field, oop value) { |
|
2667 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2668 field->obj_field_put(name_offset, value); |
|
2669 } |
|
2670 |
|
2671 oop java_lang_reflect_Field::type(oop field) { |
|
2672 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2673 return field->obj_field(type_offset); |
|
2674 } |
|
2675 |
|
2676 void java_lang_reflect_Field::set_type(oop field, oop value) { |
|
2677 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2678 field->obj_field_put(type_offset, value); |
|
2679 } |
|
2680 |
|
2681 int java_lang_reflect_Field::slot(oop reflect) { |
|
2682 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2683 return reflect->int_field(slot_offset); |
|
2684 } |
|
2685 |
|
2686 void java_lang_reflect_Field::set_slot(oop reflect, int value) { |
|
2687 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2688 reflect->int_field_put(slot_offset, value); |
|
2689 } |
|
2690 |
|
2691 int java_lang_reflect_Field::modifiers(oop field) { |
|
2692 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2693 return field->int_field(modifiers_offset); |
|
2694 } |
|
2695 |
|
2696 void java_lang_reflect_Field::set_modifiers(oop field, int value) { |
|
2697 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2698 field->int_field_put(modifiers_offset, value); |
|
2699 } |
|
2700 |
|
2701 bool java_lang_reflect_Field::has_signature_field() { |
|
2702 return (signature_offset >= 0); |
|
2703 } |
|
2704 |
|
2705 oop java_lang_reflect_Field::signature(oop field) { |
|
2706 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2707 assert(has_signature_field(), "signature field must be present"); |
|
2708 return field->obj_field(signature_offset); |
|
2709 } |
|
2710 |
|
2711 void java_lang_reflect_Field::set_signature(oop field, oop value) { |
|
2712 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2713 assert(has_signature_field(), "signature field must be present"); |
|
2714 field->obj_field_put(signature_offset, value); |
|
2715 } |
|
2716 |
|
2717 bool java_lang_reflect_Field::has_annotations_field() { |
|
2718 return (annotations_offset >= 0); |
|
2719 } |
|
2720 |
|
2721 oop java_lang_reflect_Field::annotations(oop field) { |
|
2722 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2723 assert(has_annotations_field(), "annotations field must be present"); |
|
2724 return field->obj_field(annotations_offset); |
|
2725 } |
|
2726 |
|
2727 void java_lang_reflect_Field::set_annotations(oop field, oop value) { |
|
2728 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2729 assert(has_annotations_field(), "annotations field must be present"); |
|
2730 field->obj_field_put(annotations_offset, value); |
|
2731 } |
|
2732 |
|
2733 bool java_lang_reflect_Field::has_type_annotations_field() { |
|
2734 return (type_annotations_offset >= 0); |
|
2735 } |
|
2736 |
|
2737 oop java_lang_reflect_Field::type_annotations(oop field) { |
|
2738 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2739 assert(has_type_annotations_field(), "type_annotations field must be present"); |
|
2740 return field->obj_field(type_annotations_offset); |
|
2741 } |
|
2742 |
|
2743 void java_lang_reflect_Field::set_type_annotations(oop field, oop value) { |
|
2744 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2745 assert(has_type_annotations_field(), "type_annotations field must be present"); |
|
2746 field->obj_field_put(type_annotations_offset, value); |
|
2747 } |
|
2748 |
|
2749 void reflect_ConstantPool::compute_offsets() { |
|
2750 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
|
2751 // This null test can be removed post beta |
|
2752 if (k != NULL) { |
|
2753 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
|
2754 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
|
2755 } |
|
2756 } |
|
2757 |
|
2758 void java_lang_reflect_Parameter::compute_offsets() { |
|
2759 Klass* k = SystemDictionary::reflect_Parameter_klass(); |
|
2760 if(NULL != k) { |
|
2761 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
2762 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
|
2763 compute_offset(index_offset, k, vmSymbols::index_name(), vmSymbols::int_signature()); |
|
2764 compute_offset(executable_offset, k, vmSymbols::executable_name(), vmSymbols::executable_signature()); |
|
2765 } |
|
2766 } |
|
2767 |
|
2768 Handle java_lang_reflect_Parameter::create(TRAPS) { |
|
2769 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2770 Symbol* name = vmSymbols::java_lang_reflect_Parameter(); |
|
2771 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
|
2772 InstanceKlass* ik = InstanceKlass::cast(k); |
|
2773 // Ensure it is initialized |
|
2774 ik->initialize(CHECK_NH); |
|
2775 return ik->allocate_instance_handle(THREAD); |
|
2776 } |
|
2777 |
|
2778 oop java_lang_reflect_Parameter::name(oop param) { |
|
2779 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2780 return param->obj_field(name_offset); |
|
2781 } |
|
2782 |
|
2783 void java_lang_reflect_Parameter::set_name(oop param, oop value) { |
|
2784 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2785 param->obj_field_put(name_offset, value); |
|
2786 } |
|
2787 |
|
2788 int java_lang_reflect_Parameter::modifiers(oop param) { |
|
2789 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2790 return param->int_field(modifiers_offset); |
|
2791 } |
|
2792 |
|
2793 void java_lang_reflect_Parameter::set_modifiers(oop param, int value) { |
|
2794 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2795 param->int_field_put(modifiers_offset, value); |
|
2796 } |
|
2797 |
|
2798 int java_lang_reflect_Parameter::index(oop param) { |
|
2799 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2800 return param->int_field(index_offset); |
|
2801 } |
|
2802 |
|
2803 void java_lang_reflect_Parameter::set_index(oop param, int value) { |
|
2804 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2805 param->int_field_put(index_offset, value); |
|
2806 } |
|
2807 |
|
2808 oop java_lang_reflect_Parameter::executable(oop param) { |
|
2809 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2810 return param->obj_field(executable_offset); |
|
2811 } |
|
2812 |
|
2813 void java_lang_reflect_Parameter::set_executable(oop param, oop value) { |
|
2814 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2815 param->obj_field_put(executable_offset, value); |
|
2816 } |
|
2817 |
|
2818 |
|
2819 int java_lang_Module::loader_offset; |
|
2820 int java_lang_Module::name_offset; |
|
2821 int java_lang_Module::_module_entry_offset = -1; |
|
2822 |
|
2823 Handle java_lang_Module::create(Handle loader, Handle module_name, TRAPS) { |
|
2824 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2825 |
|
2826 Symbol* name = vmSymbols::java_lang_Module(); |
|
2827 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
|
2828 InstanceKlass* ik = InstanceKlass::cast(k); |
|
2829 Handle jlmh = ik->allocate_instance_handle(CHECK_NH); |
|
2830 JavaValue result(T_VOID); |
|
2831 JavaCalls::call_special(&result, jlmh, ik, |
|
2832 vmSymbols::object_initializer_name(), |
|
2833 vmSymbols::java_lang_module_init_signature(), |
|
2834 loader, module_name, CHECK_NH); |
|
2835 return jlmh; |
|
2836 } |
|
2837 |
|
2838 void java_lang_Module::compute_offsets() { |
|
2839 Klass* k = SystemDictionary::Module_klass(); |
|
2840 if(NULL != k) { |
|
2841 compute_offset(loader_offset, k, vmSymbols::loader_name(), vmSymbols::classloader_signature()); |
|
2842 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
2843 MODULE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
|
2844 } |
|
2845 } |
|
2846 |
|
2847 |
|
2848 oop java_lang_Module::loader(oop module) { |
|
2849 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2850 return module->obj_field(loader_offset); |
|
2851 } |
|
2852 |
|
2853 void java_lang_Module::set_loader(oop module, oop value) { |
|
2854 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2855 module->obj_field_put(loader_offset, value); |
|
2856 } |
|
2857 |
|
2858 oop java_lang_Module::name(oop module) { |
|
2859 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2860 return module->obj_field(name_offset); |
|
2861 } |
|
2862 |
|
2863 void java_lang_Module::set_name(oop module, oop value) { |
|
2864 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2865 module->obj_field_put(name_offset, value); |
|
2866 } |
|
2867 |
|
2868 ModuleEntry* java_lang_Module::module_entry(oop module, TRAPS) { |
|
2869 assert(_module_entry_offset != -1, "Uninitialized module_entry_offset"); |
|
2870 assert(module != NULL, "module can't be null"); |
|
2871 assert(oopDesc::is_oop(module), "module must be oop"); |
|
2872 |
|
2873 ModuleEntry* module_entry = (ModuleEntry*)module->address_field(_module_entry_offset); |
|
2874 if (module_entry == NULL) { |
|
2875 // If the inject field containing the ModuleEntry* is null then return the |
|
2876 // class loader's unnamed module. |
|
2877 oop loader = java_lang_Module::loader(module); |
|
2878 Handle h_loader = Handle(THREAD, loader); |
|
2879 ClassLoaderData* loader_cld = SystemDictionary::register_loader(h_loader, CHECK_NULL); |
|
2880 return loader_cld->unnamed_module(); |
|
2881 } |
|
2882 return module_entry; |
|
2883 } |
|
2884 |
|
2885 void java_lang_Module::set_module_entry(oop module, ModuleEntry* module_entry) { |
|
2886 assert(_module_entry_offset != -1, "Uninitialized module_entry_offset"); |
|
2887 assert(module != NULL, "module can't be null"); |
|
2888 assert(oopDesc::is_oop(module), "module must be oop"); |
|
2889 module->address_field_put(_module_entry_offset, (address)module_entry); |
|
2890 } |
|
2891 |
|
2892 Handle reflect_ConstantPool::create(TRAPS) { |
|
2893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2894 InstanceKlass* k = SystemDictionary::reflect_ConstantPool_klass(); |
|
2895 // Ensure it is initialized |
|
2896 k->initialize(CHECK_NH); |
|
2897 return k->allocate_instance_handle(THREAD); |
|
2898 } |
|
2899 |
|
2900 |
|
2901 void reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
|
2902 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2903 oop mirror = value->pool_holder()->java_mirror(); |
|
2904 // Save the mirror to get back the constant pool. |
|
2905 reflect->obj_field_put(_oop_offset, mirror); |
|
2906 } |
|
2907 |
|
2908 ConstantPool* reflect_ConstantPool::get_cp(oop reflect) { |
|
2909 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
|
2910 |
|
2911 oop mirror = reflect->obj_field(_oop_offset); |
|
2912 Klass* k = java_lang_Class::as_Klass(mirror); |
|
2913 assert(k->is_instance_klass(), "Must be"); |
|
2914 |
|
2915 // Get the constant pool back from the klass. Since class redefinition |
|
2916 // merges the new constant pool into the old, this is essentially the |
|
2917 // same constant pool as the original. If constant pool merging is |
|
2918 // no longer done in the future, this will have to change to save |
|
2919 // the original. |
|
2920 return InstanceKlass::cast(k)->constants(); |
|
2921 } |
|
2922 |
|
2923 void reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { |
|
2924 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
|
2925 // This null test can be removed post beta |
|
2926 if (k != NULL) { |
|
2927 compute_offset(_base_offset, k, |
|
2928 vmSymbols::base_name(), vmSymbols::object_signature()); |
|
2929 } |
|
2930 } |
|
2931 |
|
2932 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
|
2933 Klass* k = SystemDictionary::box_klass(type); |
|
2934 if (k == NULL) return NULL; |
|
2935 InstanceKlass* ik = InstanceKlass::cast(k); |
|
2936 if (!ik->is_initialized()) ik->initialize(CHECK_0); |
|
2937 return ik->allocate_instance(THREAD); |
|
2938 } |
|
2939 |
|
2940 |
|
2941 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { |
|
2942 oop box = initialize_and_allocate(type, CHECK_0); |
|
2943 if (box == NULL) return NULL; |
|
2944 switch (type) { |
|
2945 case T_BOOLEAN: |
|
2946 box->bool_field_put(value_offset, value->z); |
|
2947 break; |
|
2948 case T_CHAR: |
|
2949 box->char_field_put(value_offset, value->c); |
|
2950 break; |
|
2951 case T_FLOAT: |
|
2952 box->float_field_put(value_offset, value->f); |
|
2953 break; |
|
2954 case T_DOUBLE: |
|
2955 box->double_field_put(long_value_offset, value->d); |
|
2956 break; |
|
2957 case T_BYTE: |
|
2958 box->byte_field_put(value_offset, value->b); |
|
2959 break; |
|
2960 case T_SHORT: |
|
2961 box->short_field_put(value_offset, value->s); |
|
2962 break; |
|
2963 case T_INT: |
|
2964 box->int_field_put(value_offset, value->i); |
|
2965 break; |
|
2966 case T_LONG: |
|
2967 box->long_field_put(long_value_offset, value->j); |
|
2968 break; |
|
2969 default: |
|
2970 return NULL; |
|
2971 } |
|
2972 return box; |
|
2973 } |
|
2974 |
|
2975 |
|
2976 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
2977 if (box == NULL) return T_ILLEGAL; |
|
2978 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
2979 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
2980 return T_ILLEGAL; |
|
2981 return type; |
|
2982 } |
|
2983 |
|
2984 |
|
2985 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
2986 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
2987 switch (type) { |
|
2988 case T_BOOLEAN: |
|
2989 value->z = box->bool_field(value_offset); |
|
2990 break; |
|
2991 case T_CHAR: |
|
2992 value->c = box->char_field(value_offset); |
|
2993 break; |
|
2994 case T_FLOAT: |
|
2995 value->f = box->float_field(value_offset); |
|
2996 break; |
|
2997 case T_DOUBLE: |
|
2998 value->d = box->double_field(long_value_offset); |
|
2999 break; |
|
3000 case T_BYTE: |
|
3001 value->b = box->byte_field(value_offset); |
|
3002 break; |
|
3003 case T_SHORT: |
|
3004 value->s = box->short_field(value_offset); |
|
3005 break; |
|
3006 case T_INT: |
|
3007 value->i = box->int_field(value_offset); |
|
3008 break; |
|
3009 case T_LONG: |
|
3010 value->j = box->long_field(long_value_offset); |
|
3011 break; |
|
3012 default: |
|
3013 return T_ILLEGAL; |
|
3014 } // end switch |
|
3015 return type; |
|
3016 } |
|
3017 |
|
3018 |
|
3019 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { |
|
3020 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
3021 switch (type) { |
|
3022 case T_BOOLEAN: |
|
3023 box->bool_field_put(value_offset, value->z); |
|
3024 break; |
|
3025 case T_CHAR: |
|
3026 box->char_field_put(value_offset, value->c); |
|
3027 break; |
|
3028 case T_FLOAT: |
|
3029 box->float_field_put(value_offset, value->f); |
|
3030 break; |
|
3031 case T_DOUBLE: |
|
3032 box->double_field_put(long_value_offset, value->d); |
|
3033 break; |
|
3034 case T_BYTE: |
|
3035 box->byte_field_put(value_offset, value->b); |
|
3036 break; |
|
3037 case T_SHORT: |
|
3038 box->short_field_put(value_offset, value->s); |
|
3039 break; |
|
3040 case T_INT: |
|
3041 box->int_field_put(value_offset, value->i); |
|
3042 break; |
|
3043 case T_LONG: |
|
3044 box->long_field_put(long_value_offset, value->j); |
|
3045 break; |
|
3046 default: |
|
3047 return T_ILLEGAL; |
|
3048 } // end switch |
|
3049 return type; |
|
3050 } |
|
3051 |
|
3052 |
|
3053 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
3054 switch (type) { |
|
3055 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
3056 case T_CHAR: st->print("%d", value->c); break; |
|
3057 case T_BYTE: st->print("%d", value->b); break; |
|
3058 case T_SHORT: st->print("%d", value->s); break; |
|
3059 case T_INT: st->print("%d", value->i); break; |
|
3060 case T_LONG: st->print(JLONG_FORMAT, value->j); break; |
|
3061 case T_FLOAT: st->print("%f", value->f); break; |
|
3062 case T_DOUBLE: st->print("%lf", value->d); break; |
|
3063 default: st->print("type %d?", type); break; |
|
3064 } |
|
3065 } |
|
3066 |
|
3067 // Support for java_lang_ref_SoftReference |
|
3068 |
|
3069 jlong java_lang_ref_SoftReference::timestamp(oop ref) { |
|
3070 return ref->long_field(timestamp_offset); |
|
3071 } |
|
3072 |
|
3073 jlong java_lang_ref_SoftReference::clock() { |
|
3074 InstanceKlass* ik = SystemDictionary::SoftReference_klass(); |
|
3075 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
3076 return *offset; |
|
3077 } |
|
3078 |
|
3079 void java_lang_ref_SoftReference::set_clock(jlong value) { |
|
3080 InstanceKlass* ik = SystemDictionary::SoftReference_klass(); |
|
3081 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
3082 *offset = value; |
|
3083 } |
|
3084 |
|
3085 // Support for java_lang_invoke_DirectMethodHandle |
|
3086 |
|
3087 int java_lang_invoke_DirectMethodHandle::_member_offset; |
|
3088 |
|
3089 oop java_lang_invoke_DirectMethodHandle::member(oop dmh) { |
|
3090 oop member_name = NULL; |
|
3091 assert(oopDesc::is_oop(dmh) && java_lang_invoke_DirectMethodHandle::is_instance(dmh), |
|
3092 "a DirectMethodHandle oop is expected"); |
|
3093 return dmh->obj_field(member_offset_in_bytes()); |
|
3094 } |
|
3095 |
|
3096 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
|
3097 Klass* k = SystemDictionary::DirectMethodHandle_klass(); |
|
3098 if (k != NULL) { |
|
3099 compute_offset(_member_offset, k, vmSymbols::member_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
|
3100 } |
|
3101 } |
|
3102 |
|
3103 // Support for java_lang_invoke_MethodHandle |
|
3104 |
|
3105 int java_lang_invoke_MethodHandle::_type_offset; |
|
3106 int java_lang_invoke_MethodHandle::_form_offset; |
|
3107 |
|
3108 int java_lang_invoke_MemberName::_clazz_offset; |
|
3109 int java_lang_invoke_MemberName::_name_offset; |
|
3110 int java_lang_invoke_MemberName::_type_offset; |
|
3111 int java_lang_invoke_MemberName::_flags_offset; |
|
3112 int java_lang_invoke_MemberName::_method_offset; |
|
3113 int java_lang_invoke_MemberName::_vmindex_offset; |
|
3114 |
|
3115 int java_lang_invoke_ResolvedMethodName::_vmtarget_offset; |
|
3116 int java_lang_invoke_ResolvedMethodName::_vmholder_offset; |
|
3117 |
|
3118 int java_lang_invoke_LambdaForm::_vmentry_offset; |
|
3119 |
|
3120 void java_lang_invoke_MethodHandle::compute_offsets() { |
|
3121 Klass* k = SystemDictionary::MethodHandle_klass(); |
|
3122 if (k != NULL) { |
|
3123 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
|
3124 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
|
3125 } |
|
3126 } |
|
3127 |
|
3128 void java_lang_invoke_MemberName::compute_offsets() { |
|
3129 Klass* k = SystemDictionary::MemberName_klass(); |
|
3130 assert (k != NULL, "jdk mismatch"); |
|
3131 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
|
3132 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
3133 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); |
|
3134 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); |
|
3135 compute_offset(_method_offset, k, vmSymbols::method_name(), vmSymbols::java_lang_invoke_ResolvedMethodName_signature()); |
|
3136 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
|
3137 } |
|
3138 |
|
3139 void java_lang_invoke_ResolvedMethodName::compute_offsets() { |
|
3140 Klass* k = SystemDictionary::ResolvedMethodName_klass(); |
|
3141 assert(k != NULL, "jdk mismatch"); |
|
3142 RESOLVEDMETHOD_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
|
3143 } |
|
3144 |
|
3145 void java_lang_invoke_LambdaForm::compute_offsets() { |
|
3146 Klass* k = SystemDictionary::LambdaForm_klass(); |
|
3147 assert (k != NULL, "jdk mismatch"); |
|
3148 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
|
3149 } |
|
3150 |
|
3151 bool java_lang_invoke_LambdaForm::is_instance(oop obj) { |
|
3152 return obj != NULL && is_subclass(obj->klass()); |
|
3153 } |
|
3154 |
|
3155 |
|
3156 oop java_lang_invoke_MethodHandle::type(oop mh) { |
|
3157 return mh->obj_field(_type_offset); |
|
3158 } |
|
3159 |
|
3160 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
|
3161 mh->obj_field_put(_type_offset, mtype); |
|
3162 } |
|
3163 |
|
3164 oop java_lang_invoke_MethodHandle::form(oop mh) { |
|
3165 assert(_form_offset != 0, ""); |
|
3166 return mh->obj_field(_form_offset); |
|
3167 } |
|
3168 |
|
3169 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { |
|
3170 assert(_form_offset != 0, ""); |
|
3171 mh->obj_field_put(_form_offset, lform); |
|
3172 } |
|
3173 |
|
3174 /// MemberName accessors |
|
3175 |
|
3176 oop java_lang_invoke_MemberName::clazz(oop mname) { |
|
3177 assert(is_instance(mname), "wrong type"); |
|
3178 return mname->obj_field(_clazz_offset); |
|
3179 } |
|
3180 |
|
3181 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
|
3182 assert(is_instance(mname), "wrong type"); |
|
3183 mname->obj_field_put(_clazz_offset, clazz); |
|
3184 } |
|
3185 |
|
3186 oop java_lang_invoke_MemberName::name(oop mname) { |
|
3187 assert(is_instance(mname), "wrong type"); |
|
3188 return mname->obj_field(_name_offset); |
|
3189 } |
|
3190 |
|
3191 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
|
3192 assert(is_instance(mname), "wrong type"); |
|
3193 mname->obj_field_put(_name_offset, name); |
|
3194 } |
|
3195 |
|
3196 oop java_lang_invoke_MemberName::type(oop mname) { |
|
3197 assert(is_instance(mname), "wrong type"); |
|
3198 return mname->obj_field(_type_offset); |
|
3199 } |
|
3200 |
|
3201 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
|
3202 assert(is_instance(mname), "wrong type"); |
|
3203 mname->obj_field_put(_type_offset, type); |
|
3204 } |
|
3205 |
|
3206 int java_lang_invoke_MemberName::flags(oop mname) { |
|
3207 assert(is_instance(mname), "wrong type"); |
|
3208 return mname->int_field(_flags_offset); |
|
3209 } |
|
3210 |
|
3211 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
|
3212 assert(is_instance(mname), "wrong type"); |
|
3213 mname->int_field_put(_flags_offset, flags); |
|
3214 } |
|
3215 |
|
3216 |
|
3217 // Return vmtarget from ResolvedMethodName method field through indirection |
|
3218 Method* java_lang_invoke_MemberName::vmtarget(oop mname) { |
|
3219 assert(is_instance(mname), "wrong type"); |
|
3220 oop method = mname->obj_field(_method_offset); |
|
3221 return method == NULL ? NULL : java_lang_invoke_ResolvedMethodName::vmtarget(method); |
|
3222 } |
|
3223 |
|
3224 bool java_lang_invoke_MemberName::is_method(oop mname) { |
|
3225 assert(is_instance(mname), "must be MemberName"); |
|
3226 return (flags(mname) & (MN_IS_METHOD | MN_IS_CONSTRUCTOR)) > 0; |
|
3227 } |
|
3228 |
|
3229 void java_lang_invoke_MemberName::set_method(oop mname, oop resolved_method) { |
|
3230 assert(is_instance(mname), "wrong type"); |
|
3231 mname->obj_field_put(_method_offset, resolved_method); |
|
3232 } |
|
3233 |
|
3234 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
|
3235 assert(is_instance(mname), "wrong type"); |
|
3236 return (intptr_t) mname->address_field(_vmindex_offset); |
|
3237 } |
|
3238 |
|
3239 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) { |
|
3240 assert(is_instance(mname), "wrong type"); |
|
3241 mname->address_field_put(_vmindex_offset, (address) index); |
|
3242 } |
|
3243 |
|
3244 |
|
3245 Method* java_lang_invoke_ResolvedMethodName::vmtarget(oop resolved_method) { |
|
3246 assert(is_instance(resolved_method), "wrong type"); |
|
3247 Method* m = (Method*)resolved_method->address_field(_vmtarget_offset); |
|
3248 assert(m->is_method(), "must be"); |
|
3249 return m; |
|
3250 } |
|
3251 |
|
3252 // Used by redefinition to change Method* to new Method* with same hash (name, signature) |
|
3253 void java_lang_invoke_ResolvedMethodName::set_vmtarget(oop resolved_method, Method* m) { |
|
3254 assert(is_instance(resolved_method), "wrong type"); |
|
3255 resolved_method->address_field_put(_vmtarget_offset, (address)m); |
|
3256 } |
|
3257 |
|
3258 oop java_lang_invoke_ResolvedMethodName::find_resolved_method(const methodHandle& m, TRAPS) { |
|
3259 // lookup ResolvedMethod oop in the table, or create a new one and intern it |
|
3260 oop resolved_method = ResolvedMethodTable::find_method(m()); |
|
3261 if (resolved_method == NULL) { |
|
3262 InstanceKlass* k = SystemDictionary::ResolvedMethodName_klass(); |
|
3263 if (!k->is_initialized()) { |
|
3264 k->initialize(CHECK_NULL); |
|
3265 } |
|
3266 oop new_resolved_method = k->allocate_instance(CHECK_NULL); |
|
3267 new_resolved_method->address_field_put(_vmtarget_offset, (address)m()); |
|
3268 // Add a reference to the loader (actually mirror because anonymous classes will not have |
|
3269 // distinct loaders) to ensure the metadata is kept alive. |
|
3270 // This mirror may be different than the one in clazz field. |
|
3271 new_resolved_method->obj_field_put(_vmholder_offset, m->method_holder()->java_mirror()); |
|
3272 resolved_method = ResolvedMethodTable::add_method(Handle(THREAD, new_resolved_method)); |
|
3273 } |
|
3274 return resolved_method; |
|
3275 } |
|
3276 |
|
3277 oop java_lang_invoke_LambdaForm::vmentry(oop lform) { |
|
3278 assert(is_instance(lform), "wrong type"); |
|
3279 return lform->obj_field(_vmentry_offset); |
|
3280 } |
|
3281 |
|
3282 |
|
3283 // Support for java_lang_invoke_MethodType |
|
3284 |
|
3285 int java_lang_invoke_MethodType::_rtype_offset; |
|
3286 int java_lang_invoke_MethodType::_ptypes_offset; |
|
3287 |
|
3288 void java_lang_invoke_MethodType::compute_offsets() { |
|
3289 Klass* k = SystemDictionary::MethodType_klass(); |
|
3290 if (k != NULL) { |
|
3291 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); |
|
3292 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); |
|
3293 } |
|
3294 } |
|
3295 |
|
3296 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
|
3297 st->print("("); |
|
3298 objArrayOop pts = ptypes(mt); |
|
3299 for (int i = 0, limit = pts->length(); i < limit; i++) { |
|
3300 java_lang_Class::print_signature(pts->obj_at(i), st); |
|
3301 } |
|
3302 st->print(")"); |
|
3303 java_lang_Class::print_signature(rtype(mt), st); |
|
3304 } |
|
3305 |
|
3306 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
|
3307 ResourceMark rm; |
|
3308 stringStream buffer(128); |
|
3309 print_signature(mt, &buffer); |
|
3310 const char* sigstr = buffer.base(); |
|
3311 int siglen = (int) buffer.size(); |
|
3312 Symbol *name; |
|
3313 if (!intern_if_not_found) { |
|
3314 name = SymbolTable::probe(sigstr, siglen); |
|
3315 } else { |
|
3316 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3317 } |
|
3318 return name; |
|
3319 } |
|
3320 |
|
3321 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
|
3322 if (mt1 == mt2) |
|
3323 return true; |
|
3324 if (rtype(mt1) != rtype(mt2)) |
|
3325 return false; |
|
3326 if (ptype_count(mt1) != ptype_count(mt2)) |
|
3327 return false; |
|
3328 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
|
3329 if (ptype(mt1, i) != ptype(mt2, i)) |
|
3330 return false; |
|
3331 } |
|
3332 return true; |
|
3333 } |
|
3334 |
|
3335 oop java_lang_invoke_MethodType::rtype(oop mt) { |
|
3336 assert(is_instance(mt), "must be a MethodType"); |
|
3337 return mt->obj_field(_rtype_offset); |
|
3338 } |
|
3339 |
|
3340 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
|
3341 assert(is_instance(mt), "must be a MethodType"); |
|
3342 return (objArrayOop) mt->obj_field(_ptypes_offset); |
|
3343 } |
|
3344 |
|
3345 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
|
3346 return ptypes(mt)->obj_at(idx); |
|
3347 } |
|
3348 |
|
3349 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
3350 return ptypes(mt)->length(); |
|
3351 } |
|
3352 |
|
3353 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { |
|
3354 objArrayOop pts = ptypes(mt); |
|
3355 int count = pts->length(); |
|
3356 int slots = 0; |
|
3357 for (int i = 0; i < count; i++) { |
|
3358 BasicType bt = java_lang_Class::as_BasicType(pts->obj_at(i)); |
|
3359 slots += type2size[bt]; |
|
3360 } |
|
3361 return slots; |
|
3362 } |
|
3363 |
|
3364 int java_lang_invoke_MethodType::rtype_slot_count(oop mt) { |
|
3365 BasicType bt = java_lang_Class::as_BasicType(rtype(mt)); |
|
3366 return type2size[bt]; |
|
3367 } |
|
3368 |
|
3369 |
|
3370 // Support for java_lang_invoke_CallSite |
|
3371 |
|
3372 int java_lang_invoke_CallSite::_target_offset; |
|
3373 int java_lang_invoke_CallSite::_context_offset; |
|
3374 |
|
3375 void java_lang_invoke_CallSite::compute_offsets() { |
|
3376 Klass* k = SystemDictionary::CallSite_klass(); |
|
3377 if (k != NULL) { |
|
3378 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
3379 compute_offset(_context_offset, k, vmSymbols::context_name(), |
|
3380 vmSymbols::java_lang_invoke_MethodHandleNatives_CallSiteContext_signature()); |
|
3381 } |
|
3382 } |
|
3383 |
|
3384 oop java_lang_invoke_CallSite::context(oop call_site) { |
|
3385 assert(java_lang_invoke_CallSite::is_instance(call_site), ""); |
|
3386 |
|
3387 oop dep_oop = call_site->obj_field(_context_offset); |
|
3388 return dep_oop; |
|
3389 } |
|
3390 |
|
3391 // Support for java_lang_invoke_MethodHandleNatives_CallSiteContext |
|
3392 |
|
3393 int java_lang_invoke_MethodHandleNatives_CallSiteContext::_vmdependencies_offset; |
|
3394 |
|
3395 void java_lang_invoke_MethodHandleNatives_CallSiteContext::compute_offsets() { |
|
3396 Klass* k = SystemDictionary::Context_klass(); |
|
3397 if (k != NULL) { |
|
3398 CALLSITECONTEXT_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
|
3399 } |
|
3400 } |
|
3401 |
|
3402 DependencyContext java_lang_invoke_MethodHandleNatives_CallSiteContext::vmdependencies(oop call_site) { |
|
3403 assert(java_lang_invoke_MethodHandleNatives_CallSiteContext::is_instance(call_site), ""); |
|
3404 intptr_t* vmdeps_addr = (intptr_t*)call_site->address_field_addr(_vmdependencies_offset); |
|
3405 DependencyContext dep_ctx(vmdeps_addr); |
|
3406 return dep_ctx; |
|
3407 } |
|
3408 |
|
3409 // Support for java_security_AccessControlContext |
|
3410 |
|
3411 int java_security_AccessControlContext::_context_offset = 0; |
|
3412 int java_security_AccessControlContext::_privilegedContext_offset = 0; |
|
3413 int java_security_AccessControlContext::_isPrivileged_offset = 0; |
|
3414 int java_security_AccessControlContext::_isAuthorized_offset = -1; |
|
3415 |
|
3416 void java_security_AccessControlContext::compute_offsets() { |
|
3417 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); |
|
3418 fieldDescriptor fd; |
|
3419 InstanceKlass* ik = SystemDictionary::AccessControlContext_klass(); |
|
3420 |
|
3421 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { |
|
3422 fatal("Invalid layout of java.security.AccessControlContext"); |
|
3423 } |
|
3424 _context_offset = fd.offset(); |
|
3425 |
|
3426 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { |
|
3427 fatal("Invalid layout of java.security.AccessControlContext"); |
|
3428 } |
|
3429 _privilegedContext_offset = fd.offset(); |
|
3430 |
|
3431 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { |
|
3432 fatal("Invalid layout of java.security.AccessControlContext"); |
|
3433 } |
|
3434 _isPrivileged_offset = fd.offset(); |
|
3435 |
|
3436 // The offset may not be present for bootstrapping with older JDK. |
|
3437 if (ik->find_local_field(vmSymbols::isAuthorized_name(), vmSymbols::bool_signature(), &fd)) { |
|
3438 _isAuthorized_offset = fd.offset(); |
|
3439 } |
|
3440 } |
|
3441 |
|
3442 |
|
3443 bool java_security_AccessControlContext::is_authorized(Handle context) { |
|
3444 assert(context.not_null() && context->klass() == SystemDictionary::AccessControlContext_klass(), "Invalid type"); |
|
3445 assert(_isAuthorized_offset != -1, "should be set"); |
|
3446 return context->bool_field(_isAuthorized_offset) != 0; |
|
3447 } |
|
3448 |
|
3449 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { |
|
3450 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); |
|
3451 // Ensure klass is initialized |
|
3452 SystemDictionary::AccessControlContext_klass()->initialize(CHECK_0); |
|
3453 // Allocate result |
|
3454 oop result = SystemDictionary::AccessControlContext_klass()->allocate_instance(CHECK_0); |
|
3455 // Fill in values |
|
3456 result->obj_field_put(_context_offset, context()); |
|
3457 result->obj_field_put(_privilegedContext_offset, privileged_context()); |
|
3458 result->bool_field_put(_isPrivileged_offset, isPrivileged); |
|
3459 // whitelist AccessControlContexts created by the JVM if present |
|
3460 if (_isAuthorized_offset != -1) { |
|
3461 result->bool_field_put(_isAuthorized_offset, true); |
|
3462 } |
|
3463 return result; |
|
3464 } |
|
3465 |
|
3466 |
|
3467 // Support for java_lang_ClassLoader |
|
3468 |
|
3469 bool java_lang_ClassLoader::offsets_computed = false; |
|
3470 int java_lang_ClassLoader::_loader_data_offset = -1; |
|
3471 int java_lang_ClassLoader::parallelCapable_offset = -1; |
|
3472 int java_lang_ClassLoader::name_offset = -1; |
|
3473 int java_lang_ClassLoader::unnamedModule_offset = -1; |
|
3474 |
|
3475 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
|
3476 assert(loader != NULL && oopDesc::is_oop(loader), "loader must be oop"); |
|
3477 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
|
3478 } |
|
3479 |
|
3480 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
|
3481 return *java_lang_ClassLoader::loader_data_addr(loader); |
|
3482 } |
|
3483 |
|
3484 void java_lang_ClassLoader::compute_offsets() { |
|
3485 assert(!offsets_computed, "offsets should be initialized only once"); |
|
3486 offsets_computed = true; |
|
3487 |
|
3488 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, |
|
3489 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
|
3490 compute_optional_offset(parallelCapable_offset, |
|
3491 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); |
|
3492 |
|
3493 compute_offset(name_offset, |
|
3494 k1, vmSymbols::name_name(), vmSymbols::string_signature()); |
|
3495 |
|
3496 compute_offset(unnamedModule_offset, |
|
3497 k1, vmSymbols::unnamedModule_name(), vmSymbols::module_signature()); |
|
3498 |
|
3499 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
|
3500 } |
|
3501 |
|
3502 oop java_lang_ClassLoader::parent(oop loader) { |
|
3503 assert(is_instance(loader), "loader must be oop"); |
|
3504 return loader->obj_field(parent_offset); |
|
3505 } |
|
3506 |
|
3507 oop java_lang_ClassLoader::name(oop loader) { |
|
3508 assert(is_instance(loader), "loader must be oop"); |
|
3509 return loader->obj_field(name_offset); |
|
3510 } |
|
3511 |
|
3512 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
|
3513 assert(is_instance(loader), "loader must be oop"); |
|
3514 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
|
3515 oop acl = loader; |
|
3516 debug_only(jint loop_count = 0); |
|
3517 // This loop taken verbatim from ClassLoader.java: |
|
3518 do { |
|
3519 acl = parent(acl); |
|
3520 if (cl == acl) { |
|
3521 return true; |
|
3522 } |
|
3523 assert(++loop_count > 0, "loop_count overflow"); |
|
3524 } while (acl != NULL); |
|
3525 return false; |
|
3526 } |
|
3527 |
|
3528 bool java_lang_ClassLoader::is_instance(oop obj) { |
|
3529 return obj != NULL && is_subclass(obj->klass()); |
|
3530 } |
|
3531 |
|
3532 |
|
3533 // For class loader classes, parallelCapable defined |
|
3534 // based on non-null field |
|
3535 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it |
|
3536 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { |
|
3537 if (parallelCapable_offset == -1) { |
|
3538 // Default for backward compatibility is false |
|
3539 return false; |
|
3540 } |
|
3541 return (class_loader->obj_field(parallelCapable_offset) != NULL); |
|
3542 } |
|
3543 |
|
3544 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
|
3545 // Fix for 4474172; see evaluation for more details |
|
3546 loader = non_reflection_class_loader(loader); |
|
3547 |
|
3548 oop cl = SystemDictionary::java_system_loader(); |
|
3549 while(cl != NULL) { |
|
3550 if (cl == loader) return true; |
|
3551 cl = parent(cl); |
|
3552 } |
|
3553 return false; |
|
3554 } |
|
3555 |
|
3556 // Return true if this is one of the class loaders associated with |
|
3557 // the generated bytecodes for reflection. |
|
3558 bool java_lang_ClassLoader::is_reflection_class_loader(oop loader) { |
|
3559 if (loader != NULL) { |
|
3560 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
|
3561 // This might be null in non-1.4 JDKs |
|
3562 return (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)); |
|
3563 } |
|
3564 return false; |
|
3565 } |
|
3566 |
|
3567 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { |
|
3568 // See whether this is one of the class loaders associated with |
|
3569 // the generated bytecodes for reflection, and if so, "magically" |
|
3570 // delegate to its parent to prevent class loading from occurring |
|
3571 // in places where applications using reflection didn't expect it. |
|
3572 if (is_reflection_class_loader(loader)) { |
|
3573 return parent(loader); |
|
3574 } |
|
3575 return loader; |
|
3576 } |
|
3577 |
|
3578 oop java_lang_ClassLoader::unnamedModule(oop loader) { |
|
3579 assert(is_instance(loader), "loader must be oop"); |
|
3580 return loader->obj_field(unnamedModule_offset); |
|
3581 } |
|
3582 |
|
3583 // Support for java_lang_System |
|
3584 int java_lang_System::in_offset_in_bytes() { |
|
3585 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
|
3586 } |
|
3587 |
|
3588 |
|
3589 int java_lang_System::out_offset_in_bytes() { |
|
3590 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
|
3591 } |
|
3592 |
|
3593 |
|
3594 int java_lang_System::err_offset_in_bytes() { |
|
3595 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
|
3596 } |
|
3597 |
|
3598 |
|
3599 bool java_lang_System::has_security_manager() { |
|
3600 InstanceKlass* ik = SystemDictionary::System_klass(); |
|
3601 address addr = ik->static_field_addr(static_security_offset); |
|
3602 if (UseCompressedOops) { |
|
3603 return oopDesc::load_decode_heap_oop((narrowOop *)addr) != NULL; |
|
3604 } else { |
|
3605 return oopDesc::load_decode_heap_oop((oop*)addr) != NULL; |
|
3606 } |
|
3607 } |
|
3608 |
|
3609 int java_lang_Class::_klass_offset; |
|
3610 int java_lang_Class::_array_klass_offset; |
|
3611 int java_lang_Class::_oop_size_offset; |
|
3612 int java_lang_Class::_static_oop_field_count_offset; |
|
3613 int java_lang_Class::_class_loader_offset; |
|
3614 int java_lang_Class::_module_offset; |
|
3615 int java_lang_Class::_protection_domain_offset; |
|
3616 int java_lang_Class::_component_mirror_offset; |
|
3617 int java_lang_Class::_init_lock_offset; |
|
3618 int java_lang_Class::_signers_offset; |
|
3619 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
|
3620 GrowableArray<Klass*>* java_lang_Class::_fixup_module_field_list = NULL; |
|
3621 int java_lang_Throwable::backtrace_offset; |
|
3622 int java_lang_Throwable::detailMessage_offset; |
|
3623 int java_lang_Throwable::stackTrace_offset; |
|
3624 int java_lang_Throwable::depth_offset; |
|
3625 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
|
3626 int java_lang_reflect_AccessibleObject::override_offset; |
|
3627 int java_lang_reflect_Method::clazz_offset; |
|
3628 int java_lang_reflect_Method::name_offset; |
|
3629 int java_lang_reflect_Method::returnType_offset; |
|
3630 int java_lang_reflect_Method::parameterTypes_offset; |
|
3631 int java_lang_reflect_Method::exceptionTypes_offset; |
|
3632 int java_lang_reflect_Method::slot_offset; |
|
3633 int java_lang_reflect_Method::modifiers_offset; |
|
3634 int java_lang_reflect_Method::signature_offset; |
|
3635 int java_lang_reflect_Method::annotations_offset; |
|
3636 int java_lang_reflect_Method::parameter_annotations_offset; |
|
3637 int java_lang_reflect_Method::annotation_default_offset; |
|
3638 int java_lang_reflect_Method::type_annotations_offset; |
|
3639 int java_lang_reflect_Constructor::clazz_offset; |
|
3640 int java_lang_reflect_Constructor::parameterTypes_offset; |
|
3641 int java_lang_reflect_Constructor::exceptionTypes_offset; |
|
3642 int java_lang_reflect_Constructor::slot_offset; |
|
3643 int java_lang_reflect_Constructor::modifiers_offset; |
|
3644 int java_lang_reflect_Constructor::signature_offset; |
|
3645 int java_lang_reflect_Constructor::annotations_offset; |
|
3646 int java_lang_reflect_Constructor::parameter_annotations_offset; |
|
3647 int java_lang_reflect_Constructor::type_annotations_offset; |
|
3648 int java_lang_reflect_Field::clazz_offset; |
|
3649 int java_lang_reflect_Field::name_offset; |
|
3650 int java_lang_reflect_Field::type_offset; |
|
3651 int java_lang_reflect_Field::slot_offset; |
|
3652 int java_lang_reflect_Field::modifiers_offset; |
|
3653 int java_lang_reflect_Field::signature_offset; |
|
3654 int java_lang_reflect_Field::annotations_offset; |
|
3655 int java_lang_reflect_Field::type_annotations_offset; |
|
3656 int java_lang_reflect_Parameter::name_offset; |
|
3657 int java_lang_reflect_Parameter::modifiers_offset; |
|
3658 int java_lang_reflect_Parameter::index_offset; |
|
3659 int java_lang_reflect_Parameter::executable_offset; |
|
3660 int java_lang_boxing_object::value_offset; |
|
3661 int java_lang_boxing_object::long_value_offset; |
|
3662 int java_lang_ref_Reference::referent_offset; |
|
3663 int java_lang_ref_Reference::queue_offset; |
|
3664 int java_lang_ref_Reference::next_offset; |
|
3665 int java_lang_ref_Reference::discovered_offset; |
|
3666 int java_lang_ref_Reference::number_of_fake_oop_fields; |
|
3667 int java_lang_ref_SoftReference::timestamp_offset; |
|
3668 int java_lang_ref_SoftReference::static_clock_offset; |
|
3669 int java_lang_ClassLoader::parent_offset; |
|
3670 int java_lang_System::static_in_offset; |
|
3671 int java_lang_System::static_out_offset; |
|
3672 int java_lang_System::static_err_offset; |
|
3673 int java_lang_System::static_security_offset; |
|
3674 int java_lang_StackTraceElement::methodName_offset; |
|
3675 int java_lang_StackTraceElement::fileName_offset; |
|
3676 int java_lang_StackTraceElement::lineNumber_offset; |
|
3677 int java_lang_StackTraceElement::moduleName_offset; |
|
3678 int java_lang_StackTraceElement::moduleVersion_offset; |
|
3679 int java_lang_StackTraceElement::classLoaderName_offset; |
|
3680 int java_lang_StackTraceElement::declaringClass_offset; |
|
3681 int java_lang_StackTraceElement::declaringClassObject_offset; |
|
3682 int java_lang_StackFrameInfo::_declaringClass_offset; |
|
3683 int java_lang_StackFrameInfo::_memberName_offset; |
|
3684 int java_lang_StackFrameInfo::_bci_offset; |
|
3685 int java_lang_StackFrameInfo::_version_offset; |
|
3686 int java_lang_LiveStackFrameInfo::_monitors_offset; |
|
3687 int java_lang_LiveStackFrameInfo::_locals_offset; |
|
3688 int java_lang_LiveStackFrameInfo::_operands_offset; |
|
3689 int java_lang_LiveStackFrameInfo::_mode_offset; |
|
3690 int java_lang_AssertionStatusDirectives::classes_offset; |
|
3691 int java_lang_AssertionStatusDirectives::classEnabled_offset; |
|
3692 int java_lang_AssertionStatusDirectives::packages_offset; |
|
3693 int java_lang_AssertionStatusDirectives::packageEnabled_offset; |
|
3694 int java_lang_AssertionStatusDirectives::deflt_offset; |
|
3695 int java_nio_Buffer::_limit_offset; |
|
3696 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; |
|
3697 int reflect_ConstantPool::_oop_offset; |
|
3698 int reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
|
3699 |
|
3700 |
|
3701 // Support for java_lang_StackTraceElement |
|
3702 |
|
3703 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { |
|
3704 element->obj_field_put(fileName_offset, value); |
|
3705 } |
|
3706 |
|
3707 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { |
|
3708 element->obj_field_put(declaringClass_offset, value); |
|
3709 } |
|
3710 |
|
3711 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { |
|
3712 element->obj_field_put(methodName_offset, value); |
|
3713 } |
|
3714 |
|
3715 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { |
|
3716 element->int_field_put(lineNumber_offset, value); |
|
3717 } |
|
3718 |
|
3719 void java_lang_StackTraceElement::set_moduleName(oop element, oop value) { |
|
3720 element->obj_field_put(moduleName_offset, value); |
|
3721 } |
|
3722 |
|
3723 void java_lang_StackTraceElement::set_moduleVersion(oop element, oop value) { |
|
3724 element->obj_field_put(moduleVersion_offset, value); |
|
3725 } |
|
3726 |
|
3727 void java_lang_StackTraceElement::set_classLoaderName(oop element, oop value) { |
|
3728 element->obj_field_put(classLoaderName_offset, value); |
|
3729 } |
|
3730 |
|
3731 void java_lang_StackTraceElement::set_declaringClassObject(oop element, oop value) { |
|
3732 element->obj_field_put(declaringClassObject_offset, value); |
|
3733 } |
|
3734 |
|
3735 // Support for java_lang_StackFrameInfo |
|
3736 void java_lang_StackFrameInfo::set_declaringClass(oop element, oop value) { |
|
3737 element->obj_field_put(_declaringClass_offset, value); |
|
3738 } |
|
3739 |
|
3740 void java_lang_StackFrameInfo::set_version(oop element, short value) { |
|
3741 element->short_field_put(_version_offset, value); |
|
3742 } |
|
3743 |
|
3744 void java_lang_StackFrameInfo::set_bci(oop element, int value) { |
|
3745 element->int_field_put(_bci_offset, value); |
|
3746 } |
|
3747 |
|
3748 void java_lang_LiveStackFrameInfo::set_monitors(oop element, oop value) { |
|
3749 element->obj_field_put(_monitors_offset, value); |
|
3750 } |
|
3751 |
|
3752 void java_lang_LiveStackFrameInfo::set_locals(oop element, oop value) { |
|
3753 element->obj_field_put(_locals_offset, value); |
|
3754 } |
|
3755 |
|
3756 void java_lang_LiveStackFrameInfo::set_operands(oop element, oop value) { |
|
3757 element->obj_field_put(_operands_offset, value); |
|
3758 } |
|
3759 |
|
3760 void java_lang_LiveStackFrameInfo::set_mode(oop element, int value) { |
|
3761 element->int_field_put(_mode_offset, value); |
|
3762 } |
|
3763 |
|
3764 // Support for java Assertions - java_lang_AssertionStatusDirectives. |
|
3765 |
|
3766 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { |
|
3767 o->obj_field_put(classes_offset, val); |
|
3768 } |
|
3769 |
|
3770 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { |
|
3771 o->obj_field_put(classEnabled_offset, val); |
|
3772 } |
|
3773 |
|
3774 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { |
|
3775 o->obj_field_put(packages_offset, val); |
|
3776 } |
|
3777 |
|
3778 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { |
|
3779 o->obj_field_put(packageEnabled_offset, val); |
|
3780 } |
|
3781 |
|
3782 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { |
|
3783 o->bool_field_put(deflt_offset, val); |
|
3784 } |
|
3785 |
|
3786 |
|
3787 // Support for intrinsification of java.nio.Buffer.checkIndex |
|
3788 int java_nio_Buffer::limit_offset() { |
|
3789 return _limit_offset; |
|
3790 } |
|
3791 |
|
3792 |
|
3793 void java_nio_Buffer::compute_offsets() { |
|
3794 Klass* k = SystemDictionary::nio_Buffer_klass(); |
|
3795 assert(k != NULL, "must be loaded in 1.4+"); |
|
3796 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
|
3797 } |
|
3798 |
|
3799 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { |
|
3800 if (_owner_offset != 0) return; |
|
3801 |
|
3802 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); |
|
3803 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
|
3804 compute_offset(_owner_offset, k, |
|
3805 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
|
3806 } |
|
3807 |
|
3808 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { |
|
3809 assert(_owner_offset != 0, "Must be initialized"); |
|
3810 return obj->obj_field(_owner_offset); |
|
3811 } |
|
3812 |
|
3813 // Compute hard-coded offsets |
|
3814 // Invoked before SystemDictionary::initialize, so pre-loaded classes |
|
3815 // are not available to determine the offset_of_static_fields. |
|
3816 void JavaClasses::compute_hard_coded_offsets() { |
|
3817 const int x = heapOopSize; |
|
3818 const int header = instanceOopDesc::base_offset_in_bytes(); |
|
3819 |
|
3820 // Throwable Class |
|
3821 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; |
|
3822 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; |
|
3823 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; |
|
3824 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
|
3825 |
|
3826 // java_lang_boxing_object |
|
3827 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
3828 java_lang_boxing_object::long_value_offset = align_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
|
3829 |
|
3830 // java_lang_ref_Reference: |
|
3831 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; |
|
3832 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; |
|
3833 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; |
|
3834 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; |
|
3835 // Artificial fields for java_lang_ref_Reference |
|
3836 // The first field is for the discovered field added in 1.4 |
|
3837 java_lang_ref_Reference::number_of_fake_oop_fields = 1; |
|
3838 |
|
3839 // java_lang_ref_SoftReference Class |
|
3840 java_lang_ref_SoftReference::timestamp_offset = align_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
|
3841 // Don't multiply static fields because they are always in wordSize units |
|
3842 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; |
|
3843 |
|
3844 // java_lang_ClassLoader |
|
3845 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; |
|
3846 |
|
3847 // java_lang_System |
|
3848 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; |
|
3849 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; |
|
3850 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; |
|
3851 java_lang_System::static_security_offset = java_lang_System::hc_static_security_offset * x; |
|
3852 |
|
3853 // java_lang_StackTraceElement |
|
3854 java_lang_StackTraceElement::declaringClassObject_offset = java_lang_StackTraceElement::hc_declaringClassObject_offset * x + header; |
|
3855 java_lang_StackTraceElement::classLoaderName_offset = java_lang_StackTraceElement::hc_classLoaderName_offset * x + header; |
|
3856 java_lang_StackTraceElement::moduleName_offset = java_lang_StackTraceElement::hc_moduleName_offset * x + header; |
|
3857 java_lang_StackTraceElement::moduleVersion_offset = java_lang_StackTraceElement::hc_moduleVersion_offset * x + header; |
|
3858 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; |
|
3859 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; |
|
3860 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; |
|
3861 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; |
|
3862 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; |
|
3863 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; |
|
3864 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; |
|
3865 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; |
|
3866 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; |
|
3867 |
|
3868 } |
|
3869 |
|
3870 |
|
3871 // Compute non-hard-coded field offsets of all the classes in this file |
|
3872 void JavaClasses::compute_offsets() { |
|
3873 // java_lang_Class::compute_offsets was called earlier in bootstrap |
|
3874 java_lang_ClassLoader::compute_offsets(); |
|
3875 java_lang_Throwable::compute_offsets(); |
|
3876 java_lang_Thread::compute_offsets(); |
|
3877 java_lang_ThreadGroup::compute_offsets(); |
|
3878 java_lang_invoke_MethodHandle::compute_offsets(); |
|
3879 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
3880 java_lang_invoke_MemberName::compute_offsets(); |
|
3881 java_lang_invoke_ResolvedMethodName::compute_offsets(); |
|
3882 java_lang_invoke_LambdaForm::compute_offsets(); |
|
3883 java_lang_invoke_MethodType::compute_offsets(); |
|
3884 java_lang_invoke_CallSite::compute_offsets(); |
|
3885 java_lang_invoke_MethodHandleNatives_CallSiteContext::compute_offsets(); |
|
3886 java_security_AccessControlContext::compute_offsets(); |
|
3887 // Initialize reflection classes. The layouts of these classes |
|
3888 // changed with the new reflection implementation in JDK 1.4, and |
|
3889 // since the Universe doesn't know what JDK version it is until this |
|
3890 // point we defer computation of these offsets until now. |
|
3891 java_lang_reflect_AccessibleObject::compute_offsets(); |
|
3892 java_lang_reflect_Method::compute_offsets(); |
|
3893 java_lang_reflect_Constructor::compute_offsets(); |
|
3894 java_lang_reflect_Field::compute_offsets(); |
|
3895 java_nio_Buffer::compute_offsets(); |
|
3896 reflect_ConstantPool::compute_offsets(); |
|
3897 reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); |
|
3898 java_lang_reflect_Parameter::compute_offsets(); |
|
3899 java_lang_Module::compute_offsets(); |
|
3900 java_lang_StackFrameInfo::compute_offsets(); |
|
3901 java_lang_LiveStackFrameInfo::compute_offsets(); |
|
3902 |
|
3903 // generated interpreter code wants to know about the offsets we just computed: |
|
3904 AbstractAssembler::update_delayed_values(); |
|
3905 } |
|
3906 |
|
3907 #ifndef PRODUCT |
|
3908 |
|
3909 // These functions exist to assert the validity of hard-coded field offsets to guard |
|
3910 // against changes in the class files |
|
3911 |
|
3912 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { |
|
3913 EXCEPTION_MARK; |
|
3914 fieldDescriptor fd; |
|
3915 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
3916 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
3917 InstanceKlass* ik = InstanceKlass::cast(k); |
|
3918 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3919 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3920 if (!ik->find_local_field(f_name, f_sig, &fd)) { |
|
3921 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
|
3922 return false; |
|
3923 } |
|
3924 if (fd.is_static()) { |
|
3925 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); |
|
3926 return false; |
|
3927 } |
|
3928 if (fd.offset() == hardcoded_offset ) { |
|
3929 return true; |
|
3930 } else { |
|
3931 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", |
|
3932 klass_name, field_name, hardcoded_offset, fd.offset()); |
|
3933 return false; |
|
3934 } |
|
3935 } |
|
3936 |
|
3937 |
|
3938 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { |
|
3939 EXCEPTION_MARK; |
|
3940 fieldDescriptor fd; |
|
3941 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
3942 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
3943 InstanceKlass* ik = InstanceKlass::cast(k); |
|
3944 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3945 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3946 if (!ik->find_local_field(f_name, f_sig, &fd)) { |
|
3947 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
3948 return false; |
|
3949 } |
|
3950 if (!fd.is_static()) { |
|
3951 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); |
|
3952 return false; |
|
3953 } |
|
3954 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
|
3955 return true; |
|
3956 } else { |
|
3957 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()); |
|
3958 return false; |
|
3959 } |
|
3960 } |
|
3961 |
|
3962 |
|
3963 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
3964 EXCEPTION_MARK; |
|
3965 fieldDescriptor fd; |
|
3966 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
3967 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
3968 InstanceKlass* ik = InstanceKlass::cast(k); |
|
3969 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3970 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3971 if (!ik->find_local_field(f_name, f_sig, &fd)) { |
|
3972 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
3973 return false; |
|
3974 } |
|
3975 if (!fd.is_static() || !fd.has_initial_value()) { |
|
3976 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
3977 return false; |
|
3978 } |
|
3979 if (!fd.initial_value_tag().is_int()) { |
|
3980 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
3981 return false; |
|
3982 } |
|
3983 jint field_value = fd.int_initial_value(); |
|
3984 if (field_value == hardcoded_constant) { |
|
3985 return true; |
|
3986 } else { |
|
3987 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); |
|
3988 return false; |
|
3989 } |
|
3990 } |
|
3991 |
|
3992 |
|
3993 // Check the hard-coded field offsets of all the classes in this file |
|
3994 |
|
3995 void JavaClasses::check_offsets() { |
|
3996 bool valid = true; |
|
3997 |
|
3998 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
3999 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) |
|
4000 |
|
4001 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
4002 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
4003 |
|
4004 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
4005 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) |
|
4006 |
|
4007 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
4008 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
4009 |
|
4010 // java.lang.String |
|
4011 |
|
4012 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[B"); |
|
4013 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); |
|
4014 CHECK_OFFSET("java/lang/String", java_lang_String, coder, "B"); |
|
4015 |
|
4016 // java.lang.Class |
|
4017 |
|
4018 // Fake fields |
|
4019 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked |
|
4020 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked |
|
4021 |
|
4022 // java.lang.Throwable |
|
4023 |
|
4024 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); |
|
4025 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); |
|
4026 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); |
|
4027 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, depth, "I"); |
|
4028 |
|
4029 // Boxed primitive objects (java_lang_boxing_object) |
|
4030 |
|
4031 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); |
|
4032 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); |
|
4033 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); |
|
4034 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
|
4035 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
|
4036 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); |
|
4037 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); |
|
4038 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
|
4039 |
|
4040 // java.lang.ClassLoader |
|
4041 |
|
4042 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); |
|
4043 |
|
4044 // java.lang.System |
|
4045 |
|
4046 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); |
|
4047 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); |
|
4048 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); |
|
4049 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, security, "Ljava/lang/SecurityManager;"); |
|
4050 |
|
4051 // java.lang.StackTraceElement |
|
4052 |
|
4053 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClassObject, "Ljava/lang/Class;"); |
|
4054 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, classLoaderName, "Ljava/lang/String;"); |
|
4055 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, moduleName, "Ljava/lang/String;"); |
|
4056 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, moduleVersion, "Ljava/lang/String;"); |
|
4057 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); |
|
4058 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); |
|
4059 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); |
|
4060 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); |
|
4061 |
|
4062 // java.lang.ref.Reference |
|
4063 |
|
4064 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); |
|
4065 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); |
|
4066 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); |
|
4067 // Fake field |
|
4068 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); |
|
4069 |
|
4070 // java.lang.ref.SoftReference |
|
4071 |
|
4072 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); |
|
4073 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); |
|
4074 |
|
4075 // java.lang.AssertionStatusDirectives |
|
4076 // |
|
4077 // The CheckAssertionStatusDirectives boolean can be removed from here and |
|
4078 // globals.hpp after the AssertionStatusDirectives class has been integrated |
|
4079 // into merlin "for some time." Without it, the vm will fail with early |
|
4080 // merlin builds. |
|
4081 |
|
4082 if (CheckAssertionStatusDirectives) { |
|
4083 const char* nm = "java/lang/AssertionStatusDirectives"; |
|
4084 const char* sig = "[Ljava/lang/String;"; |
|
4085 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); |
|
4086 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); |
|
4087 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); |
|
4088 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); |
|
4089 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); |
|
4090 } |
|
4091 |
|
4092 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); |
|
4093 } |
|
4094 |
|
4095 #endif // PRODUCT |
|
4096 |
|
4097 int InjectedField::compute_offset() { |
|
4098 InstanceKlass* ik = InstanceKlass::cast(klass()); |
|
4099 for (AllFieldStream fs(ik); !fs.done(); fs.next()) { |
|
4100 if (!may_be_java && !fs.access_flags().is_internal()) { |
|
4101 // Only look at injected fields |
|
4102 continue; |
|
4103 } |
|
4104 if (fs.name() == name() && fs.signature() == signature()) { |
|
4105 return fs.offset(); |
|
4106 } |
|
4107 } |
|
4108 ResourceMark rm; |
|
4109 tty->print_cr("Invalid layout of %s at %s/%s%s", ik->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : ""); |
|
4110 #ifndef PRODUCT |
|
4111 ik->print(); |
|
4112 tty->print_cr("all fields:"); |
|
4113 for (AllFieldStream fs(ik); !fs.done(); fs.next()) { |
|
4114 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
|
4115 } |
|
4116 #endif //PRODUCT |
|
4117 vm_exit_during_initialization("Invalid layout of preloaded class: use -Xlog:class+load=info to see the origin of the problem class"); |
|
4118 return -1; |
|
4119 } |
|
4120 |
|
4121 void javaClasses_init() { |
|
4122 JavaClasses::compute_offsets(); |
|
4123 JavaClasses::check_offsets(); |
|
4124 FilteredFieldsMap::initialize(); // must be done after computing offsets. |
|
4125 } |