Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 1201:24128c2ffa87
6921339: backout 6917766
Reviewed-by: mr
author | twisti |
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date | Fri, 29 Jan 2010 08:33:24 -0800 |
parents | 4ce7240d622c |
children | 6484c4ee11cb |
rev | line source |
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0 | 1 /* |
579 | 2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_javaClasses.cpp.incl" | |
27 | |
710 | 28 static bool find_field(instanceKlass* ik, |
29 symbolOop name_symbol, symbolOop signature_symbol, | |
30 fieldDescriptor* fd, | |
31 bool allow_super = false) { | |
32 if (allow_super) | |
33 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
34 else | |
35 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
36 } | |
37 | |
132
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38 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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39 static void |
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40 compute_offset(int &dest_offset, |
710 | 41 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
42 bool allow_super = false) { | |
132
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43 fieldDescriptor fd; |
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44 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 45 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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46 ResourceMark rm; |
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47 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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48 fatal("Invalid layout of preloaded class"); |
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49 } |
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50 dest_offset = fd.offset(); |
0 | 51 } |
52 | |
53 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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54 static void |
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55 compute_optional_offset(int& dest_offset, |
710 | 56 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
57 bool allow_super = false) { | |
132
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58 fieldDescriptor fd; |
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59 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 60 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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61 dest_offset = fd.offset(); |
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62 } |
0 | 63 } |
64 | |
710 | 65 |
0 | 66 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
67 // Create the String object first, so there's a chance that the String | |
68 // and the char array it points to end up in the same cache line. | |
69 oop obj; | |
70 if (tenured) { | |
1142 | 71 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 72 } else { |
1142 | 73 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 74 } |
75 | |
76 // Create the char array. The String object must be handlized here | |
77 // because GC can happen as a result of the allocation attempt. | |
78 Handle h_obj(THREAD, obj); | |
79 typeArrayOop buffer; | |
80 if (tenured) { | |
81 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
82 } else { | |
83 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
84 } | |
85 | |
86 // Point the String at the char array | |
87 obj = h_obj(); | |
88 set_value(obj, buffer); | |
89 // No need to zero the offset, allocation zero'ed the entire String object | |
90 assert(offset(obj) == 0, "initial String offset should be zero"); | |
91 //set_offset(obj, 0); | |
92 set_count(obj, length); | |
93 | |
94 return h_obj; | |
95 } | |
96 | |
97 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
98 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
99 typeArrayOop buffer = value(h_obj()); | |
100 for (int index = 0; index < length; index++) { | |
101 buffer->char_at_put(index, unicode[index]); | |
102 } | |
103 return h_obj; | |
104 } | |
105 | |
106 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
107 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
108 } | |
109 | |
110 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
111 return basic_create_from_unicode(unicode, length, true, CHECK_NH); | |
112 } | |
113 | |
114 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
115 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
116 return h_obj(); | |
117 } | |
118 | |
119 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
120 if (utf8_str == NULL) { | |
121 return Handle(); | |
122 } | |
123 int length = UTF8::unicode_length(utf8_str); | |
124 Handle h_obj = basic_create(length, false, CHECK_NH); | |
125 if (length > 0) { | |
126 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
127 } | |
128 return h_obj; | |
129 } | |
130 | |
131 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
132 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
133 return h_obj(); | |
134 } | |
135 | |
136 Handle java_lang_String::create_from_symbol(symbolHandle symbol, TRAPS) { | |
137 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); | |
138 Handle h_obj = basic_create(length, false, CHECK_NH); | |
139 if (length > 0) { | |
140 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
141 } | |
142 return h_obj; | |
143 } | |
144 | |
145 // Converts a C string to a Java String based on current encoding | |
146 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
147 assert(str != NULL, "bad arguments"); | |
148 | |
149 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
150 static to_java_string_fn_t _to_java_string_fn = NULL; | |
151 | |
152 if (_to_java_string_fn == NULL) { | |
153 void *lib_handle = os::native_java_library(); | |
154 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, hpi::dll_lookup(lib_handle, "NewStringPlatform")); | |
155 if (_to_java_string_fn == NULL) { | |
156 fatal("NewStringPlatform missing"); | |
157 } | |
158 } | |
159 | |
160 jstring js = NULL; | |
161 { JavaThread* thread = (JavaThread*)THREAD; | |
162 assert(thread->is_Java_thread(), "must be java thread"); | |
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163 HandleMark hm(thread); |
0 | 164 ThreadToNativeFromVM ttn(thread); |
165 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
166 } | |
167 return Handle(THREAD, JNIHandles::resolve(js)); | |
168 } | |
169 | |
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170 // Converts a Java String to a native C string that can be used for |
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171 // native OS calls. |
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172 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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173 |
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174 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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175 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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176 |
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177 if (_to_platform_string_fn == NULL) { |
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178 void *lib_handle = os::native_java_library(); |
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179 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, hpi::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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180 if (_to_platform_string_fn == NULL) { |
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181 fatal("GetStringPlatformChars missing"); |
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182 } |
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183 } |
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184 |
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185 char *native_platform_string; |
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186 { JavaThread* thread = (JavaThread*)THREAD; |
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187 assert(thread->is_Java_thread(), "must be java thread"); |
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188 JNIEnv *env = thread->jni_environment(); |
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189 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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190 bool is_copy; |
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191 HandleMark hm(thread); |
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192 ThreadToNativeFromVM ttn(thread); |
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193 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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194 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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195 JNIHandles::destroy_local(js); |
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196 } |
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197 return native_platform_string; |
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198 } |
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199 |
0 | 200 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
201 oop obj = java_string(); | |
202 // Typical usage is to convert all '/' to '.' in string. | |
203 typeArrayOop value = java_lang_String::value(obj); | |
204 int offset = java_lang_String::offset(obj); | |
205 int length = java_lang_String::length(obj); | |
206 | |
207 // First check if any from_char exist | |
208 int index; // Declared outside, used later | |
209 for (index = 0; index < length; index++) { | |
210 if (value->char_at(index + offset) == from_char) { | |
211 break; | |
212 } | |
213 } | |
214 if (index == length) { | |
215 // No from_char, so do not copy. | |
216 return java_string; | |
217 } | |
218 | |
219 // Create new UNICODE buffer. Must handlize value because GC | |
220 // may happen during String and char array creation. | |
221 typeArrayHandle h_value(THREAD, value); | |
222 Handle string = basic_create(length, false, CHECK_NH); | |
223 | |
224 typeArrayOop from_buffer = h_value(); | |
225 typeArrayOop to_buffer = java_lang_String::value(string()); | |
226 | |
227 // Copy contents | |
228 for (index = 0; index < length; index++) { | |
229 jchar c = from_buffer->char_at(index + offset); | |
230 if (c == from_char) { | |
231 c = to_char; | |
232 } | |
233 to_buffer->char_at_put(index, c); | |
234 } | |
235 return string; | |
236 } | |
237 | |
238 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
239 typeArrayOop value = java_lang_String::value(java_string); | |
240 int offset = java_lang_String::offset(java_string); | |
241 length = java_lang_String::length(java_string); | |
242 | |
243 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
244 for (int index = 0; index < length; index++) { | |
245 result[index] = value->char_at(index + offset); | |
246 } | |
247 return result; | |
248 } | |
249 | |
250 symbolHandle java_lang_String::as_symbol(Handle java_string, TRAPS) { | |
251 oop obj = java_string(); | |
252 typeArrayOop value = java_lang_String::value(obj); | |
253 int offset = java_lang_String::offset(obj); | |
254 int length = java_lang_String::length(obj); | |
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255 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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256 symbolOop sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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257 return symbolHandle(THREAD, sym); |
0 | 258 } |
259 | |
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260 symbolOop java_lang_String::as_symbol_or_null(oop java_string) { |
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261 typeArrayOop value = java_lang_String::value(java_string); |
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262 int offset = java_lang_String::offset(java_string); |
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263 int length = java_lang_String::length(java_string); |
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264 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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265 return SymbolTable::probe_unicode(base, length); |
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266 } |
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267 |
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268 |
0 | 269 int java_lang_String::utf8_length(oop java_string) { |
270 typeArrayOop value = java_lang_String::value(java_string); | |
271 int offset = java_lang_String::offset(java_string); | |
272 int length = java_lang_String::length(java_string); | |
273 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
274 return UNICODE::utf8_length(position, length); | |
275 } | |
276 | |
277 char* java_lang_String::as_utf8_string(oop java_string) { | |
278 typeArrayOop value = java_lang_String::value(java_string); | |
279 int offset = java_lang_String::offset(java_string); | |
280 int length = java_lang_String::length(java_string); | |
281 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
282 return UNICODE::as_utf8(position, length); | |
283 } | |
284 | |
285 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { | |
286 typeArrayOop value = java_lang_String::value(java_string); | |
287 int offset = java_lang_String::offset(java_string); | |
288 int length = java_lang_String::length(java_string); | |
289 assert(start + len <= length, "just checking"); | |
290 jchar* position = value->char_at_addr(offset + start); | |
291 return UNICODE::as_utf8(position, len); | |
292 } | |
293 | |
294 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
295 assert(SharedSkipVerify || | |
1142 | 296 java_string->klass() == SystemDictionary::String_klass(), |
0 | 297 "must be java_string"); |
298 typeArrayOop value = java_lang_String::value(java_string); | |
299 int offset = java_lang_String::offset(java_string); | |
300 int length = java_lang_String::length(java_string); | |
301 if (length != len) { | |
302 return false; | |
303 } | |
304 for (int i = 0; i < len; i++) { | |
305 if (value->char_at(i + offset) != chars[i]) { | |
306 return false; | |
307 } | |
308 } | |
309 return true; | |
310 } | |
311 | |
312 void java_lang_String::print(Handle java_string, outputStream* st) { | |
313 oop obj = java_string(); | |
1142 | 314 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 315 typeArrayOop value = java_lang_String::value(obj); |
316 int offset = java_lang_String::offset(obj); | |
317 int length = java_lang_String::length(obj); | |
318 | |
319 int end = MIN2(length, 100); | |
320 if (value == NULL) { | |
321 // This can happen if, e.g., printing a String | |
322 // object before its initializer has been called | |
323 st->print_cr("NULL"); | |
324 } else { | |
325 st->print("\""); | |
326 for (int index = 0; index < length; index++) { | |
327 st->print("%c", value->char_at(index + offset)); | |
328 } | |
329 st->print("\""); | |
330 } | |
331 } | |
332 | |
333 | |
334 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
335 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
336 // Use this moment of initialization to cache modifier_flags also, | |
337 // to support Class.getModifiers(). Instance classes recalculate | |
338 // the cached flags after the class file is parsed, but before the | |
339 // class is put into the system dictionary. | |
340 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
341 k->set_modifier_flags(computed_modifiers); | |
1142 | 342 if (SystemDictionary::Class_klass_loaded()) { |
0 | 343 // Allocate mirror (java.lang.Class instance) |
1142 | 344 Handle mirror = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
0 | 345 // Setup indirections |
346 mirror->obj_field_put(klass_offset, k()); | |
347 k->set_java_mirror(mirror()); | |
348 // It might also have a component mirror. This mirror must already exist. | |
349 if (k->oop_is_javaArray()) { | |
350 Handle comp_mirror; | |
351 if (k->oop_is_typeArray()) { | |
352 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
353 comp_mirror = Universe::java_mirror(type); | |
354 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
355 } else if (k->oop_is_objArray()) { | |
356 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
357 if (element_klass != NULL | |
358 && (Klass::cast(element_klass)->oop_is_instance() || | |
359 Klass::cast(element_klass)->oop_is_javaArray())) { | |
360 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
361 assert(comp_mirror.not_null(), "must have element mirror"); | |
362 } | |
363 // else some object array internal to the VM, like systemObjArrayKlassObj | |
364 } | |
365 if (comp_mirror.not_null()) { | |
366 // Two-way link between the array klass and its component mirror: | |
367 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
368 set_array_klass(comp_mirror(), k->as_klassOop()); | |
369 } | |
370 } | |
371 return mirror(); | |
372 } else { | |
373 return NULL; | |
374 } | |
375 } | |
376 | |
377 | |
378 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { | |
379 // This should be improved by adding a field at the Java level or by | |
380 // introducing a new VM klass (see comment in ClassFileParser) | |
1142 | 381 oop java_class = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
0 | 382 if (type != T_VOID) { |
383 klassOop aklass = Universe::typeArrayKlassObj(type); | |
384 assert(aklass != NULL, "correct bootstrap"); | |
385 set_array_klass(java_class, aklass); | |
386 } | |
387 return java_class; | |
388 } | |
389 | |
390 | |
391 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
392 //%note memory_2 | |
393 klassOop k = klassOop(java_class->obj_field(klass_offset)); | |
394 assert(k == NULL || k->is_klass(), "type check"); | |
395 return k; | |
396 } | |
397 | |
398 | |
665
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399 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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400 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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401 symbolOop name = NULL; |
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402 bool is_instance = false; |
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403 if (is_primitive(java_class)) { |
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404 name = vmSymbols::type_signature(primitive_type(java_class)); |
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405 } else { |
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406 klassOop k = as_klassOop(java_class); |
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407 is_instance = Klass::cast(k)->oop_is_instance(); |
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408 name = Klass::cast(k)->name(); |
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409 } |
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410 if (name == NULL) { |
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411 st->print("<null>"); |
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412 return; |
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413 } |
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414 if (is_instance) st->print("L"); |
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415 st->write((char*) name->base(), (int) name->utf8_length()); |
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416 if (is_instance) st->print(";"); |
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417 } |
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418 |
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419 symbolOop java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
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420 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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421 symbolOop name = NULL; |
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422 if (is_primitive(java_class)) { |
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423 return vmSymbols::type_signature(primitive_type(java_class)); |
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424 } else { |
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425 klassOop k = as_klassOop(java_class); |
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426 if (!Klass::cast(k)->oop_is_instance()) { |
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427 return Klass::cast(k)->name(); |
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428 } else { |
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429 ResourceMark rm; |
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430 const char* sigstr = Klass::cast(k)->signature_name(); |
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431 int siglen = (int) strlen(sigstr); |
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432 if (!intern_if_not_found) |
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433 return SymbolTable::probe(sigstr, siglen); |
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434 else |
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435 return oopFactory::new_symbol(sigstr, siglen, THREAD); |
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436 } |
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437 } |
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438 } |
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439 |
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440 |
0 | 441 klassOop java_lang_Class::array_klass(oop java_class) { |
442 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
443 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
444 return k; | |
445 } | |
446 | |
447 | |
448 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
449 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
450 java_class->obj_field_put(array_klass_offset, klass); | |
451 } | |
452 | |
453 | |
454 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
455 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
456 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
457 return methodOop(constructor); | |
458 } | |
459 | |
460 | |
461 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
462 assert(constructor->is_method(), "should be method"); | |
463 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
464 } | |
465 | |
466 | |
467 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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468 // should assert: |
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469 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 470 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
471 return k == NULL; | |
472 } | |
473 | |
474 | |
475 BasicType java_lang_Class::primitive_type(oop java_class) { | |
476 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
477 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
478 BasicType type = T_VOID; | |
479 if (ak != NULL) { | |
480 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
481 type = arrayKlass::cast(ak)->element_type(); | |
482 } else { | |
483 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
484 } | |
485 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
486 return type; | |
487 } | |
488 | |
665
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489 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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490 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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491 if (is_primitive(java_class)) { |
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492 if (reference_klass != NULL) |
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493 (*reference_klass) = NULL; |
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494 return primitive_type(java_class); |
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495 } else { |
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496 if (reference_klass != NULL) |
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497 (*reference_klass) = as_klassOop(java_class); |
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498 return T_OBJECT; |
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499 } |
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500 } |
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501 |
0 | 502 |
503 oop java_lang_Class::primitive_mirror(BasicType t) { | |
504 oop mirror = Universe::java_mirror(t); | |
1142 | 505 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 506 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
507 return mirror; | |
508 } | |
509 | |
510 bool java_lang_Class::offsets_computed = false; | |
511 int java_lang_Class::classRedefinedCount_offset = -1; | |
514 | 512 int java_lang_Class::parallelCapable_offset = -1; |
0 | 513 |
514 void java_lang_Class::compute_offsets() { | |
515 assert(!offsets_computed, "offsets should be initialized only once"); | |
516 offsets_computed = true; | |
517 | |
1142 | 518 klassOop k = SystemDictionary::Class_klass(); |
0 | 519 // The classRedefinedCount field is only present starting in 1.5, |
520 // so don't go fatal. | |
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521 compute_optional_offset(classRedefinedCount_offset, |
0 | 522 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
514 | 523 |
524 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
1142 | 525 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
514 | 526 compute_optional_offset(parallelCapable_offset, |
527 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
528 } | |
529 | |
530 // For class loader classes, parallelCapable defined | |
531 // based on non-null field | |
532 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
533 bool java_lang_Class::parallelCapable(oop class_loader) { | |
534 if (!JDK_Version::is_gte_jdk17x_version() | |
535 || parallelCapable_offset == -1) { | |
536 // Default for backward compatibility is false | |
537 return false; | |
538 } | |
539 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
0 | 540 } |
541 | |
542 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
543 if (!JDK_Version::is_gte_jdk15x_version() | |
544 || classRedefinedCount_offset == -1) { | |
545 // The classRedefinedCount field is only present starting in 1.5. | |
546 // If we don't have an offset for it then just return -1 as a marker. | |
547 return -1; | |
548 } | |
549 | |
550 return the_class_mirror->int_field(classRedefinedCount_offset); | |
551 } | |
552 | |
553 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
554 if (!JDK_Version::is_gte_jdk15x_version() | |
555 || classRedefinedCount_offset == -1) { | |
556 // The classRedefinedCount field is only present starting in 1.5. | |
557 // If we don't have an offset for it then nothing to set. | |
558 return; | |
559 } | |
560 | |
561 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
562 } | |
563 | |
564 | |
565 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
566 // platform thread structure, and a eetop offset which was used for thread | |
567 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
568 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
569 // instead of the privateInfo_offset. | |
570 // | |
571 // Note: The stackSize field is only present starting in 1.4. | |
572 | |
573 int java_lang_Thread::_name_offset = 0; | |
574 int java_lang_Thread::_group_offset = 0; | |
575 int java_lang_Thread::_contextClassLoader_offset = 0; | |
576 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
577 int java_lang_Thread::_priority_offset = 0; | |
578 int java_lang_Thread::_eetop_offset = 0; | |
579 int java_lang_Thread::_daemon_offset = 0; | |
580 int java_lang_Thread::_stillborn_offset = 0; | |
581 int java_lang_Thread::_stackSize_offset = 0; | |
582 int java_lang_Thread::_tid_offset = 0; | |
583 int java_lang_Thread::_thread_status_offset = 0; | |
584 int java_lang_Thread::_park_blocker_offset = 0; | |
585 int java_lang_Thread::_park_event_offset = 0 ; | |
586 | |
587 | |
588 void java_lang_Thread::compute_offsets() { | |
589 assert(_group_offset == 0, "offsets should be initialized only once"); | |
590 | |
1142 | 591 klassOop k = SystemDictionary::Thread_klass(); |
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592 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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593 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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594 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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595 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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596 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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597 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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598 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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599 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 600 // The stackSize field is only present starting in 1.4, so don't go fatal. |
132
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601 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 602 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
132
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603 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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604 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 605 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
132
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606 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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607 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 608 vmSymbols::long_signature()); |
609 } | |
610 | |
611 | |
612 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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613 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 614 } |
615 | |
616 | |
617 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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618 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 619 } |
620 | |
621 | |
622 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
623 oop name = java_thread->obj_field(_name_offset); | |
624 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
625 return typeArrayOop(name); | |
626 } | |
627 | |
628 | |
629 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
630 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
631 java_thread->obj_field_put(_name_offset, name); | |
632 } | |
633 | |
634 | |
635 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
636 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
637 } | |
638 | |
639 | |
640 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
641 java_thread->int_field_put(_priority_offset, priority); | |
642 } | |
643 | |
644 | |
645 oop java_lang_Thread::threadGroup(oop java_thread) { | |
646 return java_thread->obj_field(_group_offset); | |
647 } | |
648 | |
649 | |
650 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
651 return java_thread->bool_field(_stillborn_offset) != 0; | |
652 } | |
653 | |
654 | |
655 // We never have reason to turn the stillborn bit off | |
656 void java_lang_Thread::set_stillborn(oop java_thread) { | |
657 java_thread->bool_field_put(_stillborn_offset, true); | |
658 } | |
659 | |
660 | |
661 bool java_lang_Thread::is_alive(oop java_thread) { | |
662 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
663 return (thr != NULL); | |
664 } | |
665 | |
666 | |
667 bool java_lang_Thread::is_daemon(oop java_thread) { | |
668 return java_thread->bool_field(_daemon_offset) != 0; | |
669 } | |
670 | |
671 | |
672 void java_lang_Thread::set_daemon(oop java_thread) { | |
673 java_thread->bool_field_put(_daemon_offset, true); | |
674 } | |
675 | |
676 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
677 return java_thread->obj_field(_contextClassLoader_offset); | |
678 } | |
679 | |
680 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
681 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
682 } | |
683 | |
684 | |
685 jlong java_lang_Thread::stackSize(oop java_thread) { | |
686 // The stackSize field is only present starting in 1.4 | |
687 if (_stackSize_offset > 0) { | |
688 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
689 return java_thread->long_field(_stackSize_offset); | |
690 } else { | |
691 return 0; | |
692 } | |
693 } | |
694 | |
695 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
696 void java_lang_Thread::set_thread_status(oop java_thread, | |
697 java_lang_Thread::ThreadStatus status) { | |
698 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
699 // The threadStatus is only present starting in 1.5 | |
700 if (_thread_status_offset > 0) { | |
701 java_thread->int_field_put(_thread_status_offset, status); | |
702 } | |
703 } | |
704 | |
705 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
706 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
707 assert(Thread::current()->is_VM_thread() || | |
708 JavaThread::current()->thread_state() == _thread_in_vm, | |
709 "Java Thread is not running in vm"); | |
710 // The threadStatus is only present starting in 1.5 | |
711 if (_thread_status_offset > 0) { | |
712 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
713 } else { | |
714 // All we can easily figure out is if it is alive, but that is | |
715 // enough info for a valid unknown status. | |
716 // These aren't restricted to valid set ThreadStatus values, so | |
717 // use JVMTI values and cast. | |
718 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
719 if (thr == NULL) { | |
720 // the thread hasn't run yet or is in the process of exiting | |
721 return NEW; | |
722 } | |
723 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
724 } | |
725 } | |
726 | |
727 | |
728 jlong java_lang_Thread::thread_id(oop java_thread) { | |
729 // The thread ID field is only present starting in 1.5 | |
730 if (_tid_offset > 0) { | |
731 return java_thread->long_field(_tid_offset); | |
732 } else { | |
733 return 0; | |
734 } | |
735 } | |
736 | |
737 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 738 assert(JDK_Version::current().supports_thread_park_blocker() && |
739 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 740 |
741 if (_park_blocker_offset > 0) { | |
742 return java_thread->obj_field(_park_blocker_offset); | |
743 } | |
744 | |
745 return NULL; | |
746 } | |
747 | |
748 jlong java_lang_Thread::park_event(oop java_thread) { | |
749 if (_park_event_offset > 0) { | |
750 return java_thread->long_field(_park_event_offset); | |
751 } | |
752 return 0; | |
753 } | |
754 | |
755 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
756 if (_park_event_offset > 0) { | |
757 java_thread->long_field_put(_park_event_offset, ptr); | |
758 return true; | |
759 } | |
760 return false; | |
761 } | |
762 | |
763 | |
764 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
765 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
766 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
767 switch (status) { | |
768 case NEW : return "NEW"; | |
769 case RUNNABLE : return "RUNNABLE"; | |
770 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
771 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
772 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
773 case PARKED : return "WAITING (parking)"; | |
774 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
775 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
776 case TERMINATED : return "TERMINATED"; | |
777 default : return "UNKNOWN"; | |
778 }; | |
779 } | |
780 int java_lang_ThreadGroup::_parent_offset = 0; | |
781 int java_lang_ThreadGroup::_name_offset = 0; | |
782 int java_lang_ThreadGroup::_threads_offset = 0; | |
783 int java_lang_ThreadGroup::_groups_offset = 0; | |
784 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
785 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
786 int java_lang_ThreadGroup::_daemon_offset = 0; | |
787 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
788 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
789 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
790 | |
791 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
792 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
793 return java_thread_group->obj_field(_parent_offset); | |
794 } | |
795 | |
796 // ("name as oop" accessor is not necessary) | |
797 | |
798 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
799 oop name = java_thread_group->obj_field(_name_offset); | |
800 // ThreadGroup.name can be null | |
801 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
802 } | |
803 | |
804 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
805 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
806 return java_thread_group->int_field(_nthreads_offset); | |
807 } | |
808 | |
809 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
810 oop threads = java_thread_group->obj_field(_threads_offset); | |
811 assert(threads != NULL, "threadgroups should have threads"); | |
812 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
813 return objArrayOop(threads); | |
814 } | |
815 | |
816 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
817 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
818 return java_thread_group->int_field(_ngroups_offset); | |
819 } | |
820 | |
821 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
822 oop groups = java_thread_group->obj_field(_groups_offset); | |
823 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
824 return objArrayOop(groups); | |
825 } | |
826 | |
827 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
828 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
829 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
830 } | |
831 | |
832 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
833 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
834 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
835 } | |
836 | |
837 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
838 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
839 return java_thread_group->bool_field(_daemon_offset) != 0; | |
840 } | |
841 | |
842 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
843 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
844 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
845 } | |
846 | |
847 void java_lang_ThreadGroup::compute_offsets() { | |
848 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
849 | |
1142 | 850 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 851 |
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852 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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853 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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854 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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855 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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856 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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857 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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858 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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859 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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860 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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861 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 862 } |
863 | |
864 oop java_lang_Throwable::backtrace(oop throwable) { | |
865 return throwable->obj_field_acquire(backtrace_offset); | |
866 } | |
867 | |
868 | |
869 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
870 throwable->release_obj_field_put(backtrace_offset, value); | |
871 } | |
872 | |
873 | |
874 oop java_lang_Throwable::message(oop throwable) { | |
875 return throwable->obj_field(detailMessage_offset); | |
876 } | |
877 | |
878 | |
879 oop java_lang_Throwable::message(Handle throwable) { | |
880 return throwable->obj_field(detailMessage_offset); | |
881 } | |
882 | |
883 | |
884 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
885 throwable->obj_field_put(detailMessage_offset, value); | |
886 } | |
887 | |
888 | |
889 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
890 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
891 throwable->obj_field_put(stackTrace_offset, NULL); | |
892 } | |
893 | |
894 | |
895 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
896 ResourceMark rm; | |
897 klassOop k = throwable->klass(); | |
898 assert(k != NULL, "just checking"); | |
899 st->print("%s", instanceKlass::cast(k)->external_name()); | |
900 oop msg = message(throwable); | |
901 if (msg != NULL) { | |
902 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
903 } | |
904 } | |
905 | |
906 | |
907 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
908 ResourceMark rm; | |
909 klassOop k = throwable->klass(); | |
910 assert(k != NULL, "just checking"); | |
911 st->print("%s", instanceKlass::cast(k)->external_name()); | |
912 oop msg = message(throwable); | |
913 if (msg != NULL) { | |
914 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
915 } | |
916 } | |
917 | |
918 // Print stack trace element to resource allocated buffer | |
919 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
920 // Get strings and string lengths | |
921 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
922 const char* klass_name = klass->external_name(); | |
923 int buf_len = (int)strlen(klass_name); | |
924 char* source_file_name; | |
925 if (klass->source_file_name() == NULL) { | |
926 source_file_name = NULL; | |
927 } else { | |
928 source_file_name = klass->source_file_name()->as_C_string(); | |
929 buf_len += (int)strlen(source_file_name); | |
930 } | |
931 char* method_name = method->name()->as_C_string(); | |
932 buf_len += (int)strlen(method_name); | |
933 | |
934 // Allocate temporary buffer with extra space for formatting and line number | |
935 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
936 | |
937 // Print stack trace line in buffer | |
938 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
939 if (method->is_native()) { | |
940 strcat(buf, "(Native Method)"); | |
941 } else { | |
942 int line_number = method->line_number_from_bci(bci); | |
943 if (source_file_name != NULL && (line_number != -1)) { | |
944 // Sourcename and linenumber | |
945 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
946 } else if (source_file_name != NULL) { | |
947 // Just sourcename | |
948 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
949 } else { | |
950 // Neither soucename and linenumber | |
951 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
952 } | |
953 nmethod* nm = method->code(); | |
954 if (WizardMode && nm != NULL) { | |
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955 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
0 | 956 } |
957 } | |
958 | |
959 return buf; | |
960 } | |
961 | |
962 | |
963 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
964 ResourceMark rm; | |
965 char* buf = print_stack_element_to_buffer(method, bci); | |
966 print_to_stream(stream, buf); | |
967 } | |
968 | |
969 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
970 ResourceMark rm; | |
971 char* buf = print_stack_element_to_buffer(method, bci); | |
972 st->print_cr("%s", buf); | |
973 } | |
974 | |
975 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
976 if (stream.is_null()) { | |
977 tty->print_cr("%s", str); | |
978 } else { | |
979 EXCEPTION_MARK; | |
980 JavaValue result(T_VOID); | |
981 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
982 if (!HAS_PENDING_EXCEPTION) { | |
983 JavaCalls::call_virtual(&result, | |
984 stream, | |
985 KlassHandle(THREAD, stream->klass()), | |
986 vmSymbolHandles::println_name(), | |
987 vmSymbolHandles::char_array_void_signature(), | |
988 arg, | |
989 THREAD); | |
990 } | |
991 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
992 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
993 } | |
994 | |
995 } | |
996 | |
997 | |
998 const char* java_lang_Throwable::no_stack_trace_message() { | |
999 return "\t<<no stack trace available>>"; | |
1000 } | |
1001 | |
1002 | |
1003 // Currently used only for exceptions occurring during startup | |
1004 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1005 Thread *THREAD = Thread::current(); | |
1006 Handle h_throwable(THREAD, throwable); | |
1007 while (h_throwable.not_null()) { | |
1008 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1009 if (result.is_null()) { | |
1010 st->print_cr(no_stack_trace_message()); | |
1011 return; | |
1012 } | |
1013 | |
1014 while (result.not_null()) { | |
1015 objArrayHandle methods (THREAD, | |
1016 objArrayOop(result->obj_at(trace_methods_offset))); | |
1017 typeArrayHandle bcis (THREAD, | |
1018 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1019 | |
1020 if (methods.is_null() || bcis.is_null()) { | |
1021 st->print_cr(no_stack_trace_message()); | |
1022 return; | |
1023 } | |
1024 | |
1025 int length = methods()->length(); | |
1026 for (int index = 0; index < length; index++) { | |
1027 methodOop method = methodOop(methods()->obj_at(index)); | |
1028 if (method == NULL) goto handle_cause; | |
1029 int bci = bcis->ushort_at(index); | |
1030 print_stack_element(st, method, bci); | |
1031 } | |
1032 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1033 } | |
1034 handle_cause: | |
1035 { | |
1036 EXCEPTION_MARK; | |
1037 JavaValue result(T_OBJECT); | |
1038 JavaCalls::call_virtual(&result, | |
1039 h_throwable, | |
1040 KlassHandle(THREAD, h_throwable->klass()), | |
1041 vmSymbolHandles::getCause_name(), | |
1042 vmSymbolHandles::void_throwable_signature(), | |
1043 THREAD); | |
1044 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1045 if (HAS_PENDING_EXCEPTION) { | |
1046 CLEAR_PENDING_EXCEPTION; | |
1047 h_throwable = Handle(); | |
1048 } else { | |
1049 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1050 if (h_throwable.not_null()) { | |
1051 st->print("Caused by: "); | |
1052 print(h_throwable, st); | |
1053 st->cr(); | |
1054 } | |
1055 } | |
1056 } | |
1057 } | |
1058 } | |
1059 | |
1060 | |
1061 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1062 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1063 Thread *thread = Thread::current(); | |
1064 Handle stream(thread, print_stream); | |
1065 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1066 if (result.is_null()) { | |
1067 print_to_stream(stream, no_stack_trace_message()); | |
1068 return; | |
1069 } | |
1070 | |
1071 while (result.not_null()) { | |
1072 objArrayHandle methods (thread, | |
1073 objArrayOop(result->obj_at(trace_methods_offset))); | |
1074 typeArrayHandle bcis (thread, | |
1075 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1076 | |
1077 if (methods.is_null() || bcis.is_null()) { | |
1078 print_to_stream(stream, no_stack_trace_message()); | |
1079 return; | |
1080 } | |
1081 | |
1082 int length = methods()->length(); | |
1083 for (int index = 0; index < length; index++) { | |
1084 methodOop method = methodOop(methods()->obj_at(index)); | |
1085 if (method == NULL) return; | |
1086 int bci = bcis->ushort_at(index); | |
1087 print_stack_element(stream, method, bci); | |
1088 } | |
1089 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1090 } | |
1091 } | |
1092 | |
1093 // This class provides a simple wrapper over the internal structure of | |
1094 // exception backtrace to insulate users of the backtrace from needing | |
1095 // to know what it looks like. | |
1096 class BacktraceBuilder: public StackObj { | |
1097 private: | |
1098 Handle _backtrace; | |
1099 objArrayOop _head; | |
1100 objArrayOop _methods; | |
1101 typeArrayOop _bcis; | |
1102 int _index; | |
1103 bool _dirty; | |
1104 No_Safepoint_Verifier _nsv; | |
1105 | |
1106 public: | |
1107 | |
1108 enum { | |
1109 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1110 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1111 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1112 trace_size = java_lang_Throwable::trace_size, | |
1113 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1114 }; | |
1115 | |
1116 // constructor for new backtrace | |
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1117 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
0 | 1118 expand(CHECK); |
1119 _backtrace = _head; | |
1120 _index = 0; | |
1121 } | |
1122 | |
1123 void flush() { | |
1124 if (_dirty && _methods != NULL) { | |
1125 BarrierSet* bs = Universe::heap()->barrier_set(); | |
1126 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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1127 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
0 | 1128 _dirty = false; |
1129 } | |
1130 } | |
1131 | |
1132 void expand(TRAPS) { | |
1133 flush(); | |
1134 | |
1135 objArrayHandle old_head(THREAD, _head); | |
1136 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1137 | |
1138 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1139 objArrayHandle new_head(THREAD, head); | |
1140 | |
1141 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1142 objArrayHandle new_methods(THREAD, methods); | |
1143 | |
1144 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1145 typeArrayHandle new_bcis(THREAD, bcis); | |
1146 | |
1147 if (!old_head.is_null()) { | |
1148 old_head->obj_at_put(trace_next_offset, new_head()); | |
1149 } | |
1150 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1151 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1152 | |
1153 _head = new_head(); | |
1154 _methods = new_methods(); | |
1155 _bcis = new_bcis(); | |
1156 _index = 0; | |
1157 } | |
1158 | |
1159 oop backtrace() { | |
1160 flush(); | |
1161 return _backtrace(); | |
1162 } | |
1163 | |
1164 inline void push(methodOop method, short bci, TRAPS) { | |
1165 if (_index >= trace_chunk_size) { | |
1166 methodHandle mhandle(THREAD, method); | |
1167 expand(CHECK); | |
1168 method = mhandle(); | |
1169 } | |
1170 | |
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1171 _methods->obj_at_put(_index, method); |
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1172 // bad for UseCompressedOops |
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1173 // *_methods->obj_at_addr(_index) = method; |
0 | 1174 _bcis->ushort_at_put(_index, bci); |
1175 _index++; | |
1176 _dirty = true; | |
1177 } | |
1178 | |
1179 methodOop current_method() { | |
1180 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1181 return methodOop(_methods->obj_at(_index)); | |
1182 } | |
1183 | |
1184 jushort current_bci() { | |
1185 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1186 return _bcis->ushort_at(_index); | |
1187 } | |
1188 }; | |
1189 | |
1190 | |
1191 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
1192 if (!StackTraceInThrowable) return; | |
1193 ResourceMark rm(THREAD); | |
1194 | |
1195 // Start out by clearing the backtrace for this object, in case the VM | |
1196 // runs out of memory while allocating the stack trace | |
1197 set_backtrace(throwable(), NULL); | |
1198 if (JDK_Version::is_gte_jdk14x_version()) { | |
1199 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1200 // refilling occurs | |
1201 clear_stacktrace(throwable()); | |
1202 } | |
1203 | |
1204 int max_depth = MaxJavaStackTraceDepth; | |
1205 JavaThread* thread = (JavaThread*)THREAD; | |
1206 BacktraceBuilder bt(CHECK); | |
1207 | |
1208 // Instead of using vframe directly, this version of fill_in_stack_trace | |
1209 // basically handles everything by hand. This significantly improved the | |
1210 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1211 // See bug 6333838 for more details. | |
1212 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1213 // trace as utilizing vframe. | |
1214 #ifdef ASSERT | |
1215 vframeStream st(thread); | |
1216 methodHandle st_method(THREAD, st.method()); | |
1217 #endif | |
1218 int total_count = 0; | |
1219 RegisterMap map(thread, false); | |
1220 int decode_offset = 0; | |
1221 nmethod* nm = NULL; | |
1222 bool skip_fillInStackTrace_check = false; | |
1223 bool skip_throwableInit_check = false; | |
1224 | |
1225 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1226 methodOop method = NULL; | |
1227 int bci = 0; | |
1228 | |
1229 // Compiled java method case. | |
1230 if (decode_offset != 0) { | |
1231 DebugInfoReadStream stream(nm, decode_offset); | |
1232 decode_offset = stream.read_int(); | |
1233 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1234 bci = stream.read_bci(); |
0 | 1235 } else { |
1236 if (fr.is_first_frame()) break; | |
1237 address pc = fr.pc(); | |
1238 if (fr.is_interpreted_frame()) { | |
1239 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1240 method = fr.interpreter_frame_method(); | |
1241 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1242 fr = fr.sender(&map); | |
1243 } else { | |
1244 CodeBlob* cb = fr.cb(); | |
1245 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1246 // but non nmethod | |
1247 fr = fr.sender(&map); | |
1248 if (cb == NULL || !cb->is_nmethod()) { | |
1249 continue; | |
1250 } | |
1251 nm = (nmethod*)cb; | |
1252 if (nm->method()->is_native()) { | |
1253 method = nm->method(); | |
1254 bci = 0; | |
1255 } else { | |
1256 PcDesc* pd = nm->pc_desc_at(pc); | |
1257 decode_offset = pd->scope_decode_offset(); | |
1258 // if decode_offset is not equal to 0, it will execute the | |
1259 // "compiled java method case" at the beginning of the loop. | |
1260 continue; | |
1261 } | |
1262 } | |
1263 } | |
1264 #ifdef ASSERT | |
1265 assert(st_method() == method && st.bci() == bci, | |
1266 "Wrong stack trace"); | |
1267 st.next(); | |
1268 // vframeStream::method isn't GC-safe so store off a copy | |
1269 // of the methodOop in case we GC. | |
1270 if (!st.at_end()) { | |
1271 st_method = st.method(); | |
1272 } | |
1273 #endif | |
1274 if (!skip_fillInStackTrace_check) { | |
1275 // check "fillInStackTrace" only once, so we negate the flag | |
1276 // after the first time check. | |
1277 skip_fillInStackTrace_check = true; | |
1278 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
1279 continue; | |
1280 } | |
1281 } | |
1282 // skip <init> methods of the exceptions klass. If there is <init> methods | |
1283 // that belongs to a superclass of the exception we are going to skipping | |
1284 // them in stack trace. This is simlar to classic VM. | |
1285 if (!skip_throwableInit_check) { | |
1286 if (method->name() == vmSymbols::object_initializer_name() && | |
1287 throwable->is_a(method->method_holder())) { | |
1288 continue; | |
1289 } else { | |
1290 // if no "Throwable.init()" method found, we stop checking it next time. | |
1291 skip_throwableInit_check = true; | |
1292 } | |
1293 } | |
1294 bt.push(method, bci, CHECK); | |
1295 total_count++; | |
1296 } | |
1297 | |
1298 // Put completed stack trace into throwable object | |
1299 set_backtrace(throwable(), bt.backtrace()); | |
1300 } | |
1301 | |
1302 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
1303 // No-op if stack trace is disabled | |
1304 if (!StackTraceInThrowable) { | |
1305 return; | |
1306 } | |
1307 | |
1308 // Disable stack traces for some preallocated out of memory errors | |
1309 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1310 return; | |
1311 } | |
1312 | |
1313 PRESERVE_EXCEPTION_MARK; | |
1314 | |
1315 JavaThread* thread = JavaThread::active(); | |
1316 fill_in_stack_trace(throwable, thread); | |
1317 // ignore exceptions thrown during stack trace filling | |
1318 CLEAR_PENDING_EXCEPTION; | |
1319 } | |
1320 | |
1321 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1322 // Allocate stack trace - backtrace is created but not filled in | |
1323 | |
1324 // No-op if stack trace is disabled | |
1325 if (!StackTraceInThrowable) return; | |
1326 | |
1327 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1328 objArrayHandle backtrace (THREAD, h_oop); | |
1329 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1330 objArrayHandle methods (THREAD, m_oop); | |
1331 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1332 typeArrayHandle bcis(THREAD, b); | |
1333 | |
1334 // backtrace has space for one chunk (next is NULL) | |
1335 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1336 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1337 set_backtrace(throwable(), backtrace()); | |
1338 } | |
1339 | |
1340 | |
1341 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1342 // Fill in stack trace into preallocated backtrace (no GC) | |
1343 | |
1344 // No-op if stack trace is disabled | |
1345 if (!StackTraceInThrowable) return; | |
1346 | |
1142 | 1347 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1348 |
1349 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1350 assert(backtrace != NULL, "backtrace not preallocated"); | |
1351 | |
1352 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1353 objArrayOop methods = objArrayOop(m); | |
1354 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1355 | |
1356 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1357 typeArrayOop bcis = typeArrayOop(b); | |
1358 assert(bcis != NULL, "bci array not preallocated"); | |
1359 | |
1360 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1361 | |
1362 JavaThread* thread = JavaThread::current(); | |
1363 ResourceMark rm(thread); | |
1364 vframeStream st(thread); | |
1365 | |
1366 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1367 // methods as preallocated errors aren't created by "java" code. | |
1368 | |
1369 // fill in as much stack trace as possible | |
1370 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1371 int chunk_count = 0; | |
1372 | |
1373 for (;!st.at_end(); st.next()) { | |
1374 // add element | |
1375 bcis->ushort_at_put(chunk_count, st.bci()); | |
1376 methods->obj_at_put(chunk_count, st.method()); | |
1377 | |
1378 chunk_count++; | |
1379 | |
1380 // Bail-out for deep stacks | |
1381 if (chunk_count >= max_chunks) break; | |
1382 } | |
1383 } | |
1384 | |
1385 | |
1386 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1387 if (throwable == NULL) { | |
1388 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1389 } | |
1390 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1391 int depth = 0; | |
1392 if (chunk != NULL) { | |
1393 // Iterate over chunks and count full ones | |
1394 while (true) { | |
1395 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1396 if (next == NULL) break; | |
1397 depth += trace_chunk_size; | |
1398 chunk = next; | |
1399 } | |
1400 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1401 // Count element in remaining partial chunk | |
1402 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1403 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1404 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1405 for (int i = 0; i < methods->length(); i++) { | |
1406 if (methods->obj_at(i) == NULL) break; | |
1407 depth++; | |
1408 } | |
1409 } | |
1410 return depth; | |
1411 } | |
1412 | |
1413 | |
1414 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1415 if (throwable == NULL) { | |
1416 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1417 } | |
1418 if (index < 0) { | |
1419 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1420 } | |
1421 // Compute how many chunks to skip and index into actual chunk | |
1422 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1423 int skip_chunks = index / trace_chunk_size; | |
1424 int chunk_index = index % trace_chunk_size; | |
1425 while (chunk != NULL && skip_chunks > 0) { | |
1426 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1427 skip_chunks--; | |
1428 } | |
1429 if (chunk == NULL) { | |
1430 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1431 } | |
1432 // Get method,bci from chunk | |
1433 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1434 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1435 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1436 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1437 int bci = bcis->ushort_at(chunk_index); | |
1438 // Chunk can be partial full | |
1439 if (method.is_null()) { | |
1440 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1441 } | |
1442 | |
1443 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1444 return element; | |
1445 } | |
1446 | |
1447 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1448 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1449 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1450 | |
1451 // Allocate java.lang.StackTraceElement instance | |
1142 | 1452 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1453 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1454 instanceKlassHandle ik (THREAD, k); |
1455 if (ik->should_be_initialized()) { | |
1456 ik->initialize(CHECK_0); | |
1457 } | |
1458 | |
1459 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1460 // Fill in class name | |
1461 ResourceMark rm(THREAD); | |
1462 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1463 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1464 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1465 // Fill in method name | |
1466 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1467 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1468 // Fill in source file name | |
1469 symbolOop source = instanceKlass::cast(method->method_holder())->source_file_name(); | |
1470 oop filename = StringTable::intern(source, CHECK_0); | |
1471 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1472 // File in source line number | |
1473 int line_number; | |
1474 if (method->is_native()) { | |
1475 // Negative value different from -1 below, enabling Java code in | |
1476 // class java.lang.StackTraceElement to distinguish "native" from | |
1477 // "no LineNumberTable". | |
1478 line_number = -2; | |
1479 } else { | |
1480 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1481 line_number = method->line_number_from_bci(bci); | |
1482 } | |
1483 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1484 | |
1485 return element(); | |
1486 } | |
1487 | |
1488 | |
1489 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1490 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1491 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1492 } |
1493 | |
1494 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1495 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1496 return (jboolean) reflect->bool_field(override_offset); | |
1497 } | |
1498 | |
1499 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1500 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1501 reflect->bool_field_put(override_offset, (int) value); | |
1502 } | |
1503 | |
1504 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1505 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1506 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1507 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1508 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1509 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1510 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1511 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1512 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1513 // The generic signature and annotations fields are only present in 1.5 |
1514 signature_offset = -1; | |
1515 annotations_offset = -1; | |
1516 parameter_annotations_offset = -1; | |
1517 annotation_default_offset = -1; | |
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1518 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1519 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1520 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1521 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1522 } |
1523 | |
1524 Handle java_lang_reflect_Method::create(TRAPS) { | |
1525 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1526 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1527 // This class is eagerly initialized during VM initialization, since we keep a refence |
1528 // to one of the methods | |
1529 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1530 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1531 } | |
1532 | |
1533 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1534 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1535 return reflect->obj_field(clazz_offset); | |
1536 } | |
1537 | |
1538 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1539 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1540 reflect->obj_field_put(clazz_offset, value); | |
1541 } | |
1542 | |
1543 int java_lang_reflect_Method::slot(oop reflect) { | |
1544 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1545 return reflect->int_field(slot_offset); | |
1546 } | |
1547 | |
1548 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1549 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1550 reflect->int_field_put(slot_offset, value); | |
1551 } | |
1552 | |
1553 oop java_lang_reflect_Method::name(oop method) { | |
1554 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1555 return method->obj_field(name_offset); | |
1556 } | |
1557 | |
1558 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1559 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1560 method->obj_field_put(name_offset, value); | |
1561 } | |
1562 | |
1563 oop java_lang_reflect_Method::return_type(oop method) { | |
1564 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1565 return method->obj_field(returnType_offset); | |
1566 } | |
1567 | |
1568 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1569 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1570 method->obj_field_put(returnType_offset, value); | |
1571 } | |
1572 | |
1573 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1574 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1575 return method->obj_field(parameterTypes_offset); | |
1576 } | |
1577 | |
1578 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1579 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1580 method->obj_field_put(parameterTypes_offset, value); | |
1581 } | |
1582 | |
1583 oop java_lang_reflect_Method::exception_types(oop method) { | |
1584 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1585 return method->obj_field(exceptionTypes_offset); | |
1586 } | |
1587 | |
1588 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1589 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1590 method->obj_field_put(exceptionTypes_offset, value); | |
1591 } | |
1592 | |
1593 int java_lang_reflect_Method::modifiers(oop method) { | |
1594 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1595 return method->int_field(modifiers_offset); | |
1596 } | |
1597 | |
1598 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1599 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1600 method->int_field_put(modifiers_offset, value); | |
1601 } | |
1602 | |
1603 bool java_lang_reflect_Method::has_signature_field() { | |
1604 return (signature_offset >= 0); | |
1605 } | |
1606 | |
1607 oop java_lang_reflect_Method::signature(oop method) { | |
1608 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1609 assert(has_signature_field(), "signature field must be present"); | |
1610 return method->obj_field(signature_offset); | |
1611 } | |
1612 | |
1613 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1614 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1615 assert(has_signature_field(), "signature field must be present"); | |
1616 method->obj_field_put(signature_offset, value); | |
1617 } | |
1618 | |
1619 bool java_lang_reflect_Method::has_annotations_field() { | |
1620 return (annotations_offset >= 0); | |
1621 } | |
1622 | |
1623 oop java_lang_reflect_Method::annotations(oop method) { | |
1624 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1625 assert(has_annotations_field(), "annotations field must be present"); | |
1626 return method->obj_field(annotations_offset); | |
1627 } | |
1628 | |
1629 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1630 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1631 assert(has_annotations_field(), "annotations field must be present"); | |
1632 method->obj_field_put(annotations_offset, value); | |
1633 } | |
1634 | |
1635 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1636 return (parameter_annotations_offset >= 0); | |
1637 } | |
1638 | |
1639 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1640 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1641 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1642 return method->obj_field(parameter_annotations_offset); | |
1643 } | |
1644 | |
1645 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1646 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1647 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1648 method->obj_field_put(parameter_annotations_offset, value); | |
1649 } | |
1650 | |
1651 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1652 return (annotation_default_offset >= 0); | |
1653 } | |
1654 | |
1655 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1656 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1657 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1658 return method->obj_field(annotation_default_offset); | |
1659 } | |
1660 | |
1661 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1662 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1663 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1664 method->obj_field_put(annotation_default_offset, value); | |
1665 } | |
1666 | |
1667 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1668 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1669 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1670 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1671 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1672 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1673 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1674 // The generic signature and annotations fields are only present in 1.5 |
1675 signature_offset = -1; | |
1676 annotations_offset = -1; | |
1677 parameter_annotations_offset = -1; | |
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1678 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1679 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1680 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1681 } |
1682 | |
1683 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1684 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1685 symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor(); | |
1686 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
1687 instanceKlassHandle klass (THREAD, k); | |
1688 // Ensure it is initialized | |
1689 klass->initialize(CHECK_NH); | |
1690 return klass->allocate_instance_handle(CHECK_NH); | |
1691 } | |
1692 | |
1693 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1694 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1695 return reflect->obj_field(clazz_offset); | |
1696 } | |
1697 | |
1698 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1699 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1700 reflect->obj_field_put(clazz_offset, value); | |
1701 } | |
1702 | |
1703 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1704 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1705 return constructor->obj_field(parameterTypes_offset); | |
1706 } | |
1707 | |
1708 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1709 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1710 constructor->obj_field_put(parameterTypes_offset, value); | |
1711 } | |
1712 | |
1713 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1714 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1715 return constructor->obj_field(exceptionTypes_offset); | |
1716 } | |
1717 | |
1718 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1719 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1720 constructor->obj_field_put(exceptionTypes_offset, value); | |
1721 } | |
1722 | |
1723 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1724 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1725 return reflect->int_field(slot_offset); | |
1726 } | |
1727 | |
1728 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1729 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1730 reflect->int_field_put(slot_offset, value); | |
1731 } | |
1732 | |
1733 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1734 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1735 return constructor->int_field(modifiers_offset); | |
1736 } | |
1737 | |
1738 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1739 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1740 constructor->int_field_put(modifiers_offset, value); | |
1741 } | |
1742 | |
1743 bool java_lang_reflect_Constructor::has_signature_field() { | |
1744 return (signature_offset >= 0); | |
1745 } | |
1746 | |
1747 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1748 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1749 assert(has_signature_field(), "signature field must be present"); | |
1750 return constructor->obj_field(signature_offset); | |
1751 } | |
1752 | |
1753 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1754 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1755 assert(has_signature_field(), "signature field must be present"); | |
1756 constructor->obj_field_put(signature_offset, value); | |
1757 } | |
1758 | |
1759 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1760 return (annotations_offset >= 0); | |
1761 } | |
1762 | |
1763 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1764 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1765 assert(has_annotations_field(), "annotations field must be present"); | |
1766 return constructor->obj_field(annotations_offset); | |
1767 } | |
1768 | |
1769 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1770 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1771 assert(has_annotations_field(), "annotations field must be present"); | |
1772 constructor->obj_field_put(annotations_offset, value); | |
1773 } | |
1774 | |
1775 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1776 return (parameter_annotations_offset >= 0); | |
1777 } | |
1778 | |
1779 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1781 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1782 return method->obj_field(parameter_annotations_offset); | |
1783 } | |
1784 | |
1785 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1786 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1787 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1788 method->obj_field_put(parameter_annotations_offset, value); | |
1789 } | |
1790 | |
1791 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 1792 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1793 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1794 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1795 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1796 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1797 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1798 // The generic signature and annotations fields are only present in 1.5 |
1799 signature_offset = -1; | |
1800 annotations_offset = -1; | |
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1801 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1802 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1803 } |
1804 | |
1805 Handle java_lang_reflect_Field::create(TRAPS) { | |
1806 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1807 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); | |
1808 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
1809 instanceKlassHandle klass (THREAD, k); | |
1810 // Ensure it is initialized | |
1811 klass->initialize(CHECK_NH); | |
1812 return klass->allocate_instance_handle(CHECK_NH); | |
1813 } | |
1814 | |
1815 oop java_lang_reflect_Field::clazz(oop reflect) { | |
1816 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1817 return reflect->obj_field(clazz_offset); | |
1818 } | |
1819 | |
1820 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
1821 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1822 reflect->obj_field_put(clazz_offset, value); | |
1823 } | |
1824 | |
1825 oop java_lang_reflect_Field::name(oop field) { | |
1826 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1827 return field->obj_field(name_offset); | |
1828 } | |
1829 | |
1830 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
1831 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1832 field->obj_field_put(name_offset, value); | |
1833 } | |
1834 | |
1835 oop java_lang_reflect_Field::type(oop field) { | |
1836 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1837 return field->obj_field(type_offset); | |
1838 } | |
1839 | |
1840 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
1841 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1842 field->obj_field_put(type_offset, value); | |
1843 } | |
1844 | |
1845 int java_lang_reflect_Field::slot(oop reflect) { | |
1846 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1847 return reflect->int_field(slot_offset); | |
1848 } | |
1849 | |
1850 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
1851 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1852 reflect->int_field_put(slot_offset, value); | |
1853 } | |
1854 | |
1855 int java_lang_reflect_Field::modifiers(oop field) { | |
1856 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1857 return field->int_field(modifiers_offset); | |
1858 } | |
1859 | |
1860 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
1861 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1862 field->int_field_put(modifiers_offset, value); | |
1863 } | |
1864 | |
1865 bool java_lang_reflect_Field::has_signature_field() { | |
1866 return (signature_offset >= 0); | |
1867 } | |
1868 | |
1869 oop java_lang_reflect_Field::signature(oop field) { | |
1870 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1871 assert(has_signature_field(), "signature field must be present"); | |
1872 return field->obj_field(signature_offset); | |
1873 } | |
1874 | |
1875 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
1876 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1877 assert(has_signature_field(), "signature field must be present"); | |
1878 field->obj_field_put(signature_offset, value); | |
1879 } | |
1880 | |
1881 bool java_lang_reflect_Field::has_annotations_field() { | |
1882 return (annotations_offset >= 0); | |
1883 } | |
1884 | |
1885 oop java_lang_reflect_Field::annotations(oop field) { | |
1886 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1887 assert(has_annotations_field(), "annotations field must be present"); | |
1888 return field->obj_field(annotations_offset); | |
1889 } | |
1890 | |
1891 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
1892 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1893 assert(has_annotations_field(), "annotations field must be present"); | |
1894 field->obj_field_put(annotations_offset, value); | |
1895 } | |
1896 | |
1897 | |
1898 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 1899 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 1900 // This null test can be removed post beta |
1901 if (k != NULL) { | |
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1902 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 1903 } |
1904 } | |
1905 | |
1906 | |
1907 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
1908 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1909 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 1910 instanceKlassHandle klass (THREAD, k); |
1911 // Ensure it is initialized | |
1912 klass->initialize(CHECK_NH); | |
1913 return klass->allocate_instance_handle(CHECK_NH); | |
1914 } | |
1915 | |
1916 | |
1917 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
1918 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1919 return reflect->obj_field(_cp_oop_offset); | |
1920 } | |
1921 | |
1922 | |
1923 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
1924 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1925 reflect->obj_field_put(_cp_oop_offset, value); | |
1926 } | |
1927 | |
1928 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 1929 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 1930 // This null test can be removed post beta |
1931 if (k != NULL) { | |
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1932 compute_offset(_base_offset, k, |
0 | 1933 vmSymbols::base_name(), vmSymbols::object_signature()); |
1934 } | |
1935 } | |
1936 | |
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1937 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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1938 klassOop k = SystemDictionary::box_klass(type); |
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1939 if (k == NULL) return NULL; |
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1940 instanceKlassHandle h (THREAD, k); |
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1941 if (!h->is_initialized()) h->initialize(CHECK_0); |
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1942 return h->allocate_instance(THREAD); |
0 | 1943 } |
1944 | |
1945 | |
1946 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
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1947 oop box = initialize_and_allocate(type, CHECK_0); |
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1948 if (box == NULL) return NULL; |
0 | 1949 switch (type) { |
1950 case T_BOOLEAN: | |
1951 box->bool_field_put(value_offset, value->z); | |
1952 break; | |
1953 case T_CHAR: | |
1954 box->char_field_put(value_offset, value->c); | |
1955 break; | |
1956 case T_FLOAT: | |
1957 box->float_field_put(value_offset, value->f); | |
1958 break; | |
1959 case T_DOUBLE: | |
165
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1960 box->double_field_put(long_value_offset, value->d); |
0 | 1961 break; |
1962 case T_BYTE: | |
1963 box->byte_field_put(value_offset, value->b); | |
1964 break; | |
1965 case T_SHORT: | |
1966 box->short_field_put(value_offset, value->s); | |
1967 break; | |
1968 case T_INT: | |
1969 box->int_field_put(value_offset, value->i); | |
1970 break; | |
1971 case T_LONG: | |
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1972 box->long_field_put(long_value_offset, value->j); |
0 | 1973 break; |
1974 default: | |
1975 return NULL; | |
1976 } | |
1977 return box; | |
1978 } | |
1979 | |
1980 | |
132
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1981 BasicType java_lang_boxing_object::basic_type(oop box) { |
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1982 if (box == NULL) return T_ILLEGAL; |
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1983 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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1984 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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1985 return T_ILLEGAL; |
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1986 return type; |
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1987 } |
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1988 |
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1989 |
0 | 1990 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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1991 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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1992 switch (type) { |
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1993 case T_BOOLEAN: |
0 | 1994 value->z = box->bool_field(value_offset); |
132
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1995 break; |
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1996 case T_CHAR: |
0 | 1997 value->c = box->char_field(value_offset); |
132
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1998 break; |
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1999 case T_FLOAT: |
0 | 2000 value->f = box->float_field(value_offset); |
132
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2001 break; |
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2002 case T_DOUBLE: |
165
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2003 value->d = box->double_field(long_value_offset); |
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2004 break; |
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2005 case T_BYTE: |
0 | 2006 value->b = box->byte_field(value_offset); |
132
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2007 break; |
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2008 case T_SHORT: |
0 | 2009 value->s = box->short_field(value_offset); |
132
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2010 break; |
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2011 case T_INT: |
0 | 2012 value->i = box->int_field(value_offset); |
132
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2013 break; |
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2014 case T_LONG: |
165
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2015 value->j = box->long_field(long_value_offset); |
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2016 break; |
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2017 default: |
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2018 return T_ILLEGAL; |
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2019 } // end switch |
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2020 return type; |
0 | 2021 } |
2022 | |
2023 | |
2024 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2025 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2026 switch (type) { |
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2027 case T_BOOLEAN: |
0 | 2028 box->bool_field_put(value_offset, value->z); |
132
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2029 break; |
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2030 case T_CHAR: |
0 | 2031 box->char_field_put(value_offset, value->c); |
132
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2032 break; |
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2033 case T_FLOAT: |
0 | 2034 box->float_field_put(value_offset, value->f); |
132
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2035 break; |
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2036 case T_DOUBLE: |
165
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2037 box->double_field_put(long_value_offset, value->d); |
132
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2038 break; |
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2039 case T_BYTE: |
0 | 2040 box->byte_field_put(value_offset, value->b); |
132
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2041 break; |
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2042 case T_SHORT: |
0 | 2043 box->short_field_put(value_offset, value->s); |
132
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2044 break; |
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2045 case T_INT: |
0 | 2046 box->int_field_put(value_offset, value->i); |
132
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2047 break; |
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2048 case T_LONG: |
165
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2049 box->long_field_put(long_value_offset, value->j); |
132
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2050 break; |
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2051 default: |
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2052 return T_ILLEGAL; |
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2053 } // end switch |
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2054 return type; |
0 | 2055 } |
2056 | |
2057 | |
665
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2058 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
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2059 switch (type) { |
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2060 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
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2061 case T_CHAR: st->print("%d", value->c); break; |
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2062 case T_BYTE: st->print("%d", value->b); break; |
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2063 case T_SHORT: st->print("%d", value->s); break; |
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2064 case T_INT: st->print("%d", value->i); break; |
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2065 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
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2066 case T_FLOAT: st->print("%f", value->f); break; |
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2067 case T_DOUBLE: st->print("%lf", value->d); break; |
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2068 default: st->print("type %d?", type); break; |
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2069 } |
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2070 } |
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2071 |
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2072 |
0 | 2073 // Support for java_lang_ref_Reference |
113
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2074 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2075 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
113
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2076 char *addr = (((char *)ik->start_of_static_fields()) + static_lock_offset); |
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2077 if (UseCompressedOops) { |
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2078 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2079 } else { |
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2080 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2081 } |
0 | 2082 } |
2083 | |
113
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2084 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2085 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
113
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2086 char *addr = (((char *)ik->start_of_static_fields()) + static_pending_offset); |
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2087 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2088 return (HeapWord*)addr; |
0 | 2089 } |
2090 | |
113
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2091 oop java_lang_ref_Reference::pending_list() { |
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2092 char *addr = (char *)pending_list_addr(); |
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2093 if (UseCompressedOops) { |
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2094 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2095 } else { |
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2096 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2097 } |
0 | 2098 } |
2099 | |
2100 | |
2101 // Support for java_lang_ref_SoftReference | |
2102 | |
2103 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2104 return ref->long_field(timestamp_offset); | |
2105 } | |
2106 | |
2107 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2108 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
0 | 2109 int offset = ik->offset_of_static_fields() + static_clock_offset; |
2110 | |
1142 | 2111 return SystemDictionary::SoftReference_klass()->long_field(offset); |
0 | 2112 } |
2113 | |
2114 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2115 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
0 | 2116 int offset = ik->offset_of_static_fields() + static_clock_offset; |
2117 | |
1142 | 2118 SystemDictionary::SoftReference_klass()->long_field_put(offset, value); |
0 | 2119 } |
2120 | |
2121 | |
710 | 2122 // Support for java_dyn_MethodHandle |
2123 | |
2124 int java_dyn_MethodHandle::_type_offset; | |
2125 int java_dyn_MethodHandle::_vmtarget_offset; | |
2126 int java_dyn_MethodHandle::_vmentry_offset; | |
2127 int java_dyn_MethodHandle::_vmslots_offset; | |
2128 | |
2129 int sun_dyn_MemberName::_clazz_offset; | |
2130 int sun_dyn_MemberName::_name_offset; | |
2131 int sun_dyn_MemberName::_type_offset; | |
2132 int sun_dyn_MemberName::_flags_offset; | |
2133 int sun_dyn_MemberName::_vmtarget_offset; | |
2134 int sun_dyn_MemberName::_vmindex_offset; | |
2135 | |
2136 int sun_dyn_DirectMethodHandle::_vmindex_offset; | |
2137 | |
2138 int sun_dyn_BoundMethodHandle::_argument_offset; | |
2139 int sun_dyn_BoundMethodHandle::_vmargslot_offset; | |
2140 | |
2141 int sun_dyn_AdapterMethodHandle::_conversion_offset; | |
2142 | |
2143 void java_dyn_MethodHandle::compute_offsets() { | |
2144 klassOop k = SystemDictionary::MethodHandle_klass(); | |
2145 if (k != NULL && EnableMethodHandles) { | |
2146 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
2147 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), true); | |
2148 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), true); | |
2149 | |
2150 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
2151 // It is optional pending experiments to keep or toss. | |
2152 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
2153 } | |
2154 } | |
2155 | |
2156 void sun_dyn_MemberName::compute_offsets() { | |
2157 klassOop k = SystemDictionary::MemberName_klass(); | |
2158 if (k != NULL && EnableMethodHandles) { | |
2159 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2160 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2161 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2162 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2163 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
2164 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2165 } | |
2166 } | |
2167 | |
2168 void sun_dyn_DirectMethodHandle::compute_offsets() { | |
2169 klassOop k = SystemDictionary::DirectMethodHandle_klass(); | |
2170 if (k != NULL && EnableMethodHandles) { | |
2171 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
2172 } | |
2173 } | |
2174 | |
2175 void sun_dyn_BoundMethodHandle::compute_offsets() { | |
2176 klassOop k = SystemDictionary::BoundMethodHandle_klass(); | |
2177 if (k != NULL && EnableMethodHandles) { | |
2178 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
2179 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2180 } | |
2181 } | |
2182 | |
2183 void sun_dyn_AdapterMethodHandle::compute_offsets() { | |
2184 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); | |
2185 if (k != NULL && EnableMethodHandles) { | |
2186 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
2187 } | |
2188 } | |
2189 | |
2190 oop java_dyn_MethodHandle::type(oop mh) { | |
2191 return mh->obj_field(_type_offset); | |
2192 } | |
2193 | |
2194 void java_dyn_MethodHandle::set_type(oop mh, oop mtype) { | |
2195 mh->obj_field_put(_type_offset, mtype); | |
2196 } | |
2197 | |
2198 int java_dyn_MethodHandle::vmslots(oop mh) { | |
2199 int vmslots_offset = _vmslots_offset; | |
2200 if (vmslots_offset != 0) { | |
2201 #ifdef ASSERT | |
2202 int x = mh->int_field(vmslots_offset); | |
2203 int y = compute_vmslots(mh); | |
2204 assert(x == y, "correct hoisted value"); | |
2205 #endif | |
2206 return mh->int_field(vmslots_offset); | |
2207 } else { | |
2208 return compute_vmslots(mh); | |
2209 } | |
2210 } | |
2211 | |
2212 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
2213 void java_dyn_MethodHandle::init_vmslots(oop mh) { | |
2214 int vmslots_offset = _vmslots_offset; | |
2215 if (vmslots_offset != 0) { | |
2216 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
2217 } | |
2218 } | |
2219 | |
2220 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2221 // required to carry the arguments of this MH | |
2222 int java_dyn_MethodHandle::compute_vmslots(oop mh) { | |
2223 oop mtype = type(mh); | |
2224 if (mtype == NULL) return 0; // Java code would get NPE | |
2225 oop form = java_dyn_MethodType::form(mtype); | |
2226 if (form == NULL) return 0; // Java code would get NPE | |
2227 return java_dyn_MethodTypeForm::vmslots(form); | |
2228 } | |
2229 | |
2230 // fetch the low-level entry point for this mh | |
2231 MethodHandleEntry* java_dyn_MethodHandle::vmentry(oop mh) { | |
2232 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); | |
2233 } | |
2234 | |
2235 void java_dyn_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { | |
2236 assert(_vmentry_offset != 0, "must be present"); | |
2237 | |
2238 // This is always the final step that initializes a valid method handle: | |
2239 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2240 | |
2241 // There should be enough memory barriers on exit from native methods | |
2242 // to ensure that the MH is fully initialized to all threads before | |
2243 // Java code can publish it in global data structures. | |
2244 // But just in case, we use release_address_field_put. | |
2245 } | |
2246 | |
2247 /// MemberName accessors | |
2248 | |
2249 oop sun_dyn_MemberName::clazz(oop mname) { | |
2250 assert(is_instance(mname), "wrong type"); | |
2251 return mname->obj_field(_clazz_offset); | |
2252 } | |
2253 | |
2254 void sun_dyn_MemberName::set_clazz(oop mname, oop clazz) { | |
2255 assert(is_instance(mname), "wrong type"); | |
2256 mname->obj_field_put(_clazz_offset, clazz); | |
2257 } | |
2258 | |
2259 oop sun_dyn_MemberName::name(oop mname) { | |
2260 assert(is_instance(mname), "wrong type"); | |
2261 return mname->obj_field(_name_offset); | |
2262 } | |
2263 | |
2264 void sun_dyn_MemberName::set_name(oop mname, oop name) { | |
2265 assert(is_instance(mname), "wrong type"); | |
2266 mname->obj_field_put(_name_offset, name); | |
2267 } | |
2268 | |
2269 oop sun_dyn_MemberName::type(oop mname) { | |
2270 assert(is_instance(mname), "wrong type"); | |
2271 return mname->obj_field(_type_offset); | |
2272 } | |
2273 | |
2274 void sun_dyn_MemberName::set_type(oop mname, oop type) { | |
2275 assert(is_instance(mname), "wrong type"); | |
2276 mname->obj_field_put(_type_offset, type); | |
2277 } | |
2278 | |
2279 int sun_dyn_MemberName::flags(oop mname) { | |
2280 assert(is_instance(mname), "wrong type"); | |
2281 return mname->int_field(_flags_offset); | |
2282 } | |
2283 | |
2284 void sun_dyn_MemberName::set_flags(oop mname, int flags) { | |
2285 assert(is_instance(mname), "wrong type"); | |
2286 mname->int_field_put(_flags_offset, flags); | |
2287 } | |
2288 | |
2289 oop sun_dyn_MemberName::vmtarget(oop mname) { | |
2290 assert(is_instance(mname), "wrong type"); | |
2291 return mname->obj_field(_vmtarget_offset); | |
2292 } | |
2293 | |
2294 void sun_dyn_MemberName::set_vmtarget(oop mname, oop ref) { | |
2295 assert(is_instance(mname), "wrong type"); | |
2296 mname->obj_field_put(_vmtarget_offset, ref); | |
2297 } | |
2298 | |
2299 int sun_dyn_MemberName::vmindex(oop mname) { | |
2300 assert(is_instance(mname), "wrong type"); | |
2301 return mname->int_field(_vmindex_offset); | |
2302 } | |
2303 | |
2304 void sun_dyn_MemberName::set_vmindex(oop mname, int index) { | |
2305 assert(is_instance(mname), "wrong type"); | |
2306 mname->int_field_put(_vmindex_offset, index); | |
2307 } | |
2308 | |
2309 oop java_dyn_MethodHandle::vmtarget(oop mh) { | |
2310 assert(is_instance(mh), "MH only"); | |
2311 return mh->obj_field(_vmtarget_offset); | |
2312 } | |
2313 | |
2314 void java_dyn_MethodHandle::set_vmtarget(oop mh, oop ref) { | |
2315 assert(is_instance(mh), "MH only"); | |
2316 mh->obj_field_put(_vmtarget_offset, ref); | |
2317 } | |
2318 | |
2319 int sun_dyn_DirectMethodHandle::vmindex(oop mh) { | |
2320 assert(is_instance(mh), "DMH only"); | |
2321 return mh->int_field(_vmindex_offset); | |
2322 } | |
2323 | |
2324 void sun_dyn_DirectMethodHandle::set_vmindex(oop mh, int index) { | |
2325 assert(is_instance(mh), "DMH only"); | |
2326 mh->int_field_put(_vmindex_offset, index); | |
2327 } | |
2328 | |
2329 int sun_dyn_BoundMethodHandle::vmargslot(oop mh) { | |
2330 assert(is_instance(mh), "BMH only"); | |
2331 return mh->int_field(_vmargslot_offset); | |
2332 } | |
2333 | |
2334 oop sun_dyn_BoundMethodHandle::argument(oop mh) { | |
2335 assert(is_instance(mh), "BMH only"); | |
2336 return mh->obj_field(_argument_offset); | |
2337 } | |
2338 | |
2339 int sun_dyn_AdapterMethodHandle::conversion(oop mh) { | |
2340 assert(is_instance(mh), "AMH only"); | |
2341 return mh->int_field(_conversion_offset); | |
2342 } | |
2343 | |
2344 void sun_dyn_AdapterMethodHandle::set_conversion(oop mh, int conv) { | |
2345 assert(is_instance(mh), "AMH only"); | |
2346 mh->int_field_put(_conversion_offset, conv); | |
2347 } | |
2348 | |
2349 | |
2350 // Support for java_dyn_MethodType | |
2351 | |
2352 int java_dyn_MethodType::_rtype_offset; | |
2353 int java_dyn_MethodType::_ptypes_offset; | |
2354 int java_dyn_MethodType::_form_offset; | |
2355 | |
2356 void java_dyn_MethodType::compute_offsets() { | |
2357 klassOop k = SystemDictionary::MethodType_klass(); | |
2358 if (k != NULL) { | |
2359 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2360 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2361 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_dyn_MethodTypeForm_signature()); | |
2362 } | |
2363 } | |
2364 | |
2365 void java_dyn_MethodType::print_signature(oop mt, outputStream* st) { | |
2366 st->print("("); | |
2367 objArrayOop pts = ptypes(mt); | |
2368 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2369 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2370 } | |
2371 st->print(")"); | |
2372 java_lang_Class::print_signature(rtype(mt), st); | |
2373 } | |
2374 | |
2375 symbolOop java_dyn_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { | |
2376 ResourceMark rm; | |
2377 stringStream buffer(128); | |
2378 print_signature(mt, &buffer); | |
2379 const char* sigstr = buffer.base(); | |
2380 int siglen = (int) buffer.size(); | |
2381 if (!intern_if_not_found) | |
2382 return SymbolTable::probe(sigstr, siglen); | |
2383 else | |
2384 return oopFactory::new_symbol(sigstr, siglen, THREAD); | |
2385 } | |
2386 | |
2387 oop java_dyn_MethodType::rtype(oop mt) { | |
2388 assert(is_instance(mt), "must be a MethodType"); | |
2389 return mt->obj_field(_rtype_offset); | |
2390 } | |
2391 | |
2392 objArrayOop java_dyn_MethodType::ptypes(oop mt) { | |
2393 assert(is_instance(mt), "must be a MethodType"); | |
2394 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2395 } | |
2396 | |
2397 oop java_dyn_MethodType::form(oop mt) { | |
2398 assert(is_instance(mt), "must be a MethodType"); | |
2399 return mt->obj_field(_form_offset); | |
2400 } | |
2401 | |
2402 oop java_dyn_MethodType::ptype(oop mt, int idx) { | |
2403 return ptypes(mt)->obj_at(idx); | |
2404 } | |
2405 | |
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2406 int java_dyn_MethodType::ptype_count(oop mt) { |
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2407 return ptypes(mt)->length(); |
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2408 } |
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2409 |
710 | 2410 |
2411 | |
2412 // Support for java_dyn_MethodTypeForm | |
2413 | |
2414 int java_dyn_MethodTypeForm::_vmslots_offset; | |
2415 int java_dyn_MethodTypeForm::_erasedType_offset; | |
2416 | |
2417 void java_dyn_MethodTypeForm::compute_offsets() { | |
2418 klassOop k = SystemDictionary::MethodTypeForm_klass(); | |
2419 if (k != NULL) { | |
2420 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
2421 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
2422 } | |
2423 } | |
2424 | |
2425 int java_dyn_MethodTypeForm::vmslots(oop mtform) { | |
2426 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
2427 return mtform->int_field(_vmslots_offset); | |
2428 } | |
2429 | |
2430 oop java_dyn_MethodTypeForm::erasedType(oop mtform) { | |
2431 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
2432 return mtform->obj_field(_erasedType_offset); | |
2433 } | |
2434 | |
2435 | |
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2436 // Support for java_dyn_CallSite |
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2437 |
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2438 int java_dyn_CallSite::_type_offset; |
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2439 int java_dyn_CallSite::_target_offset; |
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2440 int java_dyn_CallSite::_vmmethod_offset; |
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2441 |
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2442 void java_dyn_CallSite::compute_offsets() { |
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2443 if (!EnableInvokeDynamic) return; |
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2444 klassOop k = SystemDictionary::CallSite_klass(); |
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2445 if (k != NULL) { |
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2446 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_dyn_MethodType_signature(), true); |
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2447 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_dyn_MethodHandle_signature(), true); |
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2448 compute_offset(_vmmethod_offset, k, vmSymbols::vmmethod_name(), vmSymbols::object_signature(), true); |
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2449 } |
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2450 } |
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2451 |
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2452 oop java_dyn_CallSite::type(oop site) { |
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2453 return site->obj_field(_type_offset); |
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2454 } |
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2455 |
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2456 oop java_dyn_CallSite::target(oop site) { |
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2457 return site->obj_field(_target_offset); |
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2458 } |
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2459 |
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2460 void java_dyn_CallSite::set_target(oop site, oop target) { |
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2461 site->obj_field_put(_target_offset, target); |
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2462 } |
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2463 |
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2464 oop java_dyn_CallSite::vmmethod(oop site) { |
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2465 return site->obj_field(_vmmethod_offset); |
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2466 } |
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2467 |
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2468 void java_dyn_CallSite::set_vmmethod(oop site, oop ref) { |
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2469 site->obj_field_put(_vmmethod_offset, ref); |
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2470 } |
710 | 2471 |
2472 | |
0 | 2473 // Support for java_security_AccessControlContext |
2474 | |
2475 int java_security_AccessControlContext::_context_offset = 0; | |
2476 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2477 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2478 | |
2479 void java_security_AccessControlContext::compute_offsets() { | |
2480 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2481 fieldDescriptor fd; | |
2482 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2483 | |
2484 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2485 fatal("Invalid layout of java.security.AccessControlContext"); | |
2486 } | |
2487 _context_offset = fd.offset(); | |
2488 | |
2489 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2490 fatal("Invalid layout of java.security.AccessControlContext"); | |
2491 } | |
2492 _privilegedContext_offset = fd.offset(); | |
2493 | |
2494 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2495 fatal("Invalid layout of java.security.AccessControlContext"); | |
2496 } | |
2497 _isPrivileged_offset = fd.offset(); | |
2498 } | |
2499 | |
2500 | |
2501 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2502 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2503 // Ensure klass is initialized | |
2504 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2505 // Allocate result | |
2506 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2507 // Fill in values | |
2508 result->obj_field_put(_context_offset, context()); | |
2509 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2510 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2511 return result; | |
2512 } | |
2513 | |
2514 | |
2515 // Support for java_lang_ClassLoader | |
2516 | |
2517 oop java_lang_ClassLoader::parent(oop loader) { | |
2518 assert(loader->is_oop(), "loader must be oop"); | |
2519 return loader->obj_field(parent_offset); | |
2520 } | |
2521 | |
2522 | |
2523 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
2524 // Fix for 4474172; see evaluation for more details | |
2525 loader = non_reflection_class_loader(loader); | |
2526 | |
2527 oop cl = SystemDictionary::java_system_loader(); | |
2528 while(cl != NULL) { | |
2529 if (cl == loader) return true; | |
2530 cl = parent(cl); | |
2531 } | |
2532 return false; | |
2533 } | |
2534 | |
2535 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2536 if (loader != NULL) { | |
2537 // See whether this is one of the class loaders associated with | |
2538 // the generated bytecodes for reflection, and if so, "magically" | |
2539 // delegate to its parent to prevent class loading from occurring | |
2540 // in places where applications using reflection didn't expect it. | |
1142 | 2541 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2542 // This might be null in non-1.4 JDKs |
2543 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2544 return parent(loader); | |
2545 } | |
2546 } | |
2547 return loader; | |
2548 } | |
2549 | |
2550 | |
2551 // Support for java_lang_System | |
2552 | |
2553 void java_lang_System::compute_offsets() { | |
2554 assert(offset_of_static_fields == 0, "offsets should be initialized only once"); | |
2555 | |
1142 | 2556 instanceKlass* ik = instanceKlass::cast(SystemDictionary::System_klass()); |
0 | 2557 offset_of_static_fields = ik->offset_of_static_fields(); |
2558 } | |
2559 | |
2560 int java_lang_System::in_offset_in_bytes() { | |
2561 return (offset_of_static_fields + static_in_offset); | |
2562 } | |
2563 | |
2564 | |
2565 int java_lang_System::out_offset_in_bytes() { | |
2566 return (offset_of_static_fields + static_out_offset); | |
2567 } | |
2568 | |
2569 | |
2570 int java_lang_System::err_offset_in_bytes() { | |
2571 return (offset_of_static_fields + static_err_offset); | |
2572 } | |
2573 | |
2574 | |
2575 | |
2576 int java_lang_String::value_offset; | |
2577 int java_lang_String::offset_offset; | |
2578 int java_lang_String::count_offset; | |
2579 int java_lang_String::hash_offset; | |
2580 int java_lang_Class::klass_offset; | |
2581 int java_lang_Class::array_klass_offset; | |
2582 int java_lang_Class::resolved_constructor_offset; | |
2583 int java_lang_Class::number_of_fake_oop_fields; | |
2584 int java_lang_Throwable::backtrace_offset; | |
2585 int java_lang_Throwable::detailMessage_offset; | |
2586 int java_lang_Throwable::cause_offset; | |
2587 int java_lang_Throwable::stackTrace_offset; | |
2588 int java_lang_reflect_AccessibleObject::override_offset; | |
2589 int java_lang_reflect_Method::clazz_offset; | |
2590 int java_lang_reflect_Method::name_offset; | |
2591 int java_lang_reflect_Method::returnType_offset; | |
2592 int java_lang_reflect_Method::parameterTypes_offset; | |
2593 int java_lang_reflect_Method::exceptionTypes_offset; | |
2594 int java_lang_reflect_Method::slot_offset; | |
2595 int java_lang_reflect_Method::modifiers_offset; | |
2596 int java_lang_reflect_Method::signature_offset; | |
2597 int java_lang_reflect_Method::annotations_offset; | |
2598 int java_lang_reflect_Method::parameter_annotations_offset; | |
2599 int java_lang_reflect_Method::annotation_default_offset; | |
2600 int java_lang_reflect_Constructor::clazz_offset; | |
2601 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2602 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2603 int java_lang_reflect_Constructor::slot_offset; | |
2604 int java_lang_reflect_Constructor::modifiers_offset; | |
2605 int java_lang_reflect_Constructor::signature_offset; | |
2606 int java_lang_reflect_Constructor::annotations_offset; | |
2607 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2608 int java_lang_reflect_Field::clazz_offset; | |
2609 int java_lang_reflect_Field::name_offset; | |
2610 int java_lang_reflect_Field::type_offset; | |
2611 int java_lang_reflect_Field::slot_offset; | |
2612 int java_lang_reflect_Field::modifiers_offset; | |
2613 int java_lang_reflect_Field::signature_offset; | |
2614 int java_lang_reflect_Field::annotations_offset; | |
2615 int java_lang_boxing_object::value_offset; | |
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2616 int java_lang_boxing_object::long_value_offset; |
0 | 2617 int java_lang_ref_Reference::referent_offset; |
2618 int java_lang_ref_Reference::queue_offset; | |
2619 int java_lang_ref_Reference::next_offset; | |
2620 int java_lang_ref_Reference::discovered_offset; | |
2621 int java_lang_ref_Reference::static_lock_offset; | |
2622 int java_lang_ref_Reference::static_pending_offset; | |
2623 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2624 int java_lang_ref_SoftReference::timestamp_offset; | |
2625 int java_lang_ref_SoftReference::static_clock_offset; | |
2626 int java_lang_ClassLoader::parent_offset; | |
2627 int java_lang_System::offset_of_static_fields; | |
2628 int java_lang_System::static_in_offset; | |
2629 int java_lang_System::static_out_offset; | |
2630 int java_lang_System::static_err_offset; | |
2631 int java_lang_StackTraceElement::declaringClass_offset; | |
2632 int java_lang_StackTraceElement::methodName_offset; | |
2633 int java_lang_StackTraceElement::fileName_offset; | |
2634 int java_lang_StackTraceElement::lineNumber_offset; | |
2635 int java_lang_AssertionStatusDirectives::classes_offset; | |
2636 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2637 int java_lang_AssertionStatusDirectives::packages_offset; | |
2638 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2639 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2640 int java_nio_Buffer::_limit_offset; | |
2641 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2642 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2643 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2644 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2645 | |
2646 | |
2647 // Support for java_lang_StackTraceElement | |
2648 | |
2649 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2650 element->obj_field_put(fileName_offset, value); | |
2651 } | |
2652 | |
2653 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2654 element->obj_field_put(declaringClass_offset, value); | |
2655 } | |
2656 | |
2657 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2658 element->obj_field_put(methodName_offset, value); | |
2659 } | |
2660 | |
2661 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2662 element->int_field_put(lineNumber_offset, value); | |
2663 } | |
2664 | |
2665 | |
2666 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2667 | |
2668 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2669 o->obj_field_put(classes_offset, val); | |
2670 } | |
2671 | |
2672 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2673 o->obj_field_put(classEnabled_offset, val); | |
2674 } | |
2675 | |
2676 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2677 o->obj_field_put(packages_offset, val); | |
2678 } | |
2679 | |
2680 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2681 o->obj_field_put(packageEnabled_offset, val); | |
2682 } | |
2683 | |
2684 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2685 o->bool_field_put(deflt_offset, val); | |
2686 } | |
2687 | |
2688 | |
2689 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2690 int java_nio_Buffer::limit_offset() { | |
2691 return _limit_offset; | |
2692 } | |
2693 | |
2694 | |
2695 void java_nio_Buffer::compute_offsets() { | |
2696 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
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2697 assert(k != NULL, "must be loaded in 1.4+"); |
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2698 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2699 } |
2700 | |
2701 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2702 int sun_misc_AtomicLongCSImpl::value_offset() { | |
2703 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
2704 return _value_offset; | |
2705 } | |
2706 | |
2707 | |
2708 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
2709 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
2710 // If this class is not present, its value field offset won't be referenced. | |
2711 if (k != NULL) { | |
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2712 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2713 } |
2714 } | |
2715 | |
2716 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2717 if (_owner_offset != 0) return; | |
2718 | |
2719 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2720 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2721 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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2722 compute_offset(_owner_offset, k, |
0 | 2723 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2724 } | |
2725 | |
2726 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2727 assert(_owner_offset != 0, "Must be initialized"); | |
2728 return obj->obj_field(_owner_offset); | |
2729 } | |
2730 | |
2731 // Compute hard-coded offsets | |
2732 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2733 // are not available to determine the offset_of_static_fields. | |
2734 void JavaClasses::compute_hard_coded_offsets() { | |
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2735 const int x = heapOopSize; |
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2736 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2737 |
2738 // Do the String Class | |
2739 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2740 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2741 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2742 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2743 | |
2744 // Do the Class Class | |
2745 java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header; | |
2746 java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header; | |
2747 java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header; | |
2748 | |
2749 // This is NOT an offset | |
2750 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
2751 | |
2752 // Throwable Class | |
2753 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2754 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2755 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2756 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
2757 | |
2758 // java_lang_boxing_object | |
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2759 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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2760 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 2761 |
2762 // java_lang_ref_Reference: | |
2763 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
2764 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
2765 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
2766 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
2767 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
2768 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
2769 // Artificial fields for java_lang_ref_Reference | |
2770 // The first field is for the discovered field added in 1.4 | |
2771 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
2772 | |
2773 // java_lang_ref_SoftReference Class | |
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2774 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 2775 // Don't multiply static fields because they are always in wordSize units |
2776 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
2777 | |
2778 // java_lang_ClassLoader | |
2779 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
2780 | |
2781 // java_lang_System | |
2782 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
2783 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
2784 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
2785 | |
2786 // java_lang_StackTraceElement | |
2787 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
2788 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
2789 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
2790 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
2791 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
2792 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
2793 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
2794 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
2795 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
2796 | |
2797 } | |
2798 | |
2799 | |
2800 // Compute non-hard-coded field offsets of all the classes in this file | |
2801 void JavaClasses::compute_offsets() { | |
2802 | |
2803 java_lang_Class::compute_offsets(); | |
2804 java_lang_System::compute_offsets(); | |
2805 java_lang_Thread::compute_offsets(); | |
2806 java_lang_ThreadGroup::compute_offsets(); | |
710 | 2807 if (EnableMethodHandles) { |
2808 java_dyn_MethodHandle::compute_offsets(); | |
2809 sun_dyn_MemberName::compute_offsets(); | |
2810 sun_dyn_DirectMethodHandle::compute_offsets(); | |
2811 sun_dyn_BoundMethodHandle::compute_offsets(); | |
2812 sun_dyn_AdapterMethodHandle::compute_offsets(); | |
2813 java_dyn_MethodType::compute_offsets(); | |
2814 java_dyn_MethodTypeForm::compute_offsets(); | |
2815 } | |
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2816 if (EnableInvokeDynamic) { |
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2817 java_dyn_CallSite::compute_offsets(); |
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2818 } |
0 | 2819 java_security_AccessControlContext::compute_offsets(); |
2820 // Initialize reflection classes. The layouts of these classes | |
2821 // changed with the new reflection implementation in JDK 1.4, and | |
2822 // since the Universe doesn't know what JDK version it is until this | |
2823 // point we defer computation of these offsets until now. | |
2824 java_lang_reflect_AccessibleObject::compute_offsets(); | |
2825 java_lang_reflect_Method::compute_offsets(); | |
2826 java_lang_reflect_Constructor::compute_offsets(); | |
2827 java_lang_reflect_Field::compute_offsets(); | |
2828 if (JDK_Version::is_gte_jdk14x_version()) { | |
2829 java_nio_Buffer::compute_offsets(); | |
2830 } | |
2831 if (JDK_Version::is_gte_jdk15x_version()) { | |
2832 sun_reflect_ConstantPool::compute_offsets(); | |
2833 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
2834 } | |
2835 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 2836 |
2837 // generated interpreter code wants to know about the offsets we just computed: | |
2838 AbstractAssembler::update_delayed_values(); | |
0 | 2839 } |
2840 | |
2841 #ifndef PRODUCT | |
2842 | |
2843 // These functions exist to assert the validity of hard-coded field offsets to guard | |
2844 // against changes in the class files | |
2845 | |
2846 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
2847 EXCEPTION_MARK; | |
2848 fieldDescriptor fd; | |
2849 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
2850 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
2851 instanceKlassHandle h_klass (THREAD, k); | |
2852 //instanceKlassHandle h_klass(klass); | |
2853 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
2854 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
2855 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
2856 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); | |
2857 return false; | |
2858 } | |
2859 if (fd.is_static()) { | |
2860 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
2861 return false; | |
2862 } | |
2863 if (fd.offset() == hardcoded_offset ) { | |
2864 return true; | |
2865 } else { | |
2866 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
2867 klass_name, field_name, hardcoded_offset, fd.offset()); | |
2868 return false; | |
2869 } | |
2870 } | |
2871 | |
2872 | |
2873 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
2874 EXCEPTION_MARK; | |
2875 fieldDescriptor fd; | |
2876 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
2877 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
2878 instanceKlassHandle h_klass (THREAD, k); | |
2879 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
2880 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
2881 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
2882 tty->print_cr("Static field %s.%s not found", klass_name, field_name); | |
2883 return false; | |
2884 } | |
2885 if (!fd.is_static()) { | |
2886 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
2887 return false; | |
2888 } | |
2889 if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) { | |
2890 return true; | |
2891 } else { | |
2892 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() - h_klass->offset_of_static_fields()); | |
2893 return false; | |
2894 } | |
2895 } | |
2896 | |
2897 | |
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2898 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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2899 EXCEPTION_MARK; |
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2900 fieldDescriptor fd; |
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2901 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); |
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2902 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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2903 instanceKlassHandle h_klass (THREAD, k); |
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2904 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); |
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2905 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); |
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2906 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { |
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2907 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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2908 return false; |
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2909 } |
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2910 if (!fd.is_static() || !fd.has_initial_value()) { |
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2911 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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2912 return false; |
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2913 } |
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2914 if (!fd.initial_value_tag().is_int()) { |
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2915 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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2916 return false; |
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2917 } |
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2918 jint field_value = fd.int_initial_value(); |
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2919 if (field_value == hardcoded_constant) { |
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2920 return true; |
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2921 } else { |
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2922 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
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2923 return false; |
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2924 } |
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2925 } |
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2926 |
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2927 |
0 | 2928 // Check the hard-coded field offsets of all the classes in this file |
2929 | |
2930 void JavaClasses::check_offsets() { | |
2931 bool valid = true; | |
2932 | |
2933 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
2934 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
2935 | |
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2936 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2937 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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2938 |
0 | 2939 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
2940 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
2941 | |
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2942 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2943 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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2944 |
0 | 2945 // java.lang.String |
2946 | |
2947 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
2948 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
2949 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
2950 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
2951 | |
2952 // java.lang.Class | |
2953 | |
2954 // Fake fields | |
2955 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
2956 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
2957 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
2958 | |
2959 // java.lang.Throwable | |
2960 | |
2961 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
2962 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
2963 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
2964 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
2965 | |
2966 // Boxed primitive objects (java_lang_boxing_object) | |
2967 | |
2968 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
2969 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
2970 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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2971 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 2972 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
2973 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
2974 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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2975 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 2976 |
2977 // java.lang.ClassLoader | |
2978 | |
2979 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
2980 | |
2981 // java.lang.System | |
2982 | |
2983 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
2984 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
2985 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
2986 | |
2987 // java.lang.StackTraceElement | |
2988 | |
2989 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
2990 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
2991 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
2992 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
2993 | |
2994 // java.lang.ref.Reference | |
2995 | |
2996 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
2997 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
2998 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
2999 // Fake field | |
3000 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3001 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3002 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3003 | |
3004 // java.lang.ref.SoftReference | |
3005 | |
3006 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3007 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3008 | |
3009 // java.lang.AssertionStatusDirectives | |
3010 // | |
3011 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3012 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3013 // into merlin "for some time." Without it, the vm will fail with early | |
3014 // merlin builds. | |
3015 | |
3016 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3017 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3018 const char* sig = "[Ljava/lang/String;"; | |
3019 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3020 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3021 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3022 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3023 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3024 } | |
3025 | |
3026 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3027 } | |
3028 | |
3029 #endif // PRODUCT | |
3030 | |
3031 void javaClasses_init() { | |
3032 JavaClasses::compute_offsets(); | |
3033 JavaClasses::check_offsets(); | |
3034 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3035 } |