Mercurial > hg > graal-jvmci-8
annotate src/share/vm/classfile/javaClasses.cpp @ 1980:828eafbd85cc
6348631: remove the use of the HPI library from Hotspot
Summary: move functions from hpi library to hotspot, communicate with licensees and open source community, check jdk for dependency, file CCC request
Reviewed-by: coleenp, acorn, dsamersoff
author | ikrylov |
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date | Wed, 01 Dec 2010 18:26:32 -0500 |
parents | f95d63e2154a |
children | 017cd8bce8a8 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "code/debugInfo.hpp" | |
30 #include "code/pcDesc.hpp" | |
31 #include "interpreter/interpreter.hpp" | |
32 #include "memory/oopFactory.hpp" | |
33 #include "memory/resourceArea.hpp" | |
34 #include "memory/universe.inline.hpp" | |
35 #include "oops/instanceKlass.hpp" | |
36 #include "oops/klass.hpp" | |
37 #include "oops/klassOop.hpp" | |
38 #include "oops/methodOop.hpp" | |
39 #include "oops/symbolOop.hpp" | |
40 #include "oops/typeArrayOop.hpp" | |
41 #include "runtime/fieldDescriptor.hpp" | |
42 #include "runtime/handles.inline.hpp" | |
43 #include "runtime/interfaceSupport.hpp" | |
44 #include "runtime/java.hpp" | |
45 #include "runtime/javaCalls.hpp" | |
46 #include "runtime/safepoint.hpp" | |
47 #include "runtime/vframe.hpp" | |
48 #include "utilities/preserveException.hpp" | |
49 #ifdef TARGET_OS_FAMILY_linux | |
50 # include "thread_linux.inline.hpp" | |
51 #endif | |
52 #ifdef TARGET_OS_FAMILY_solaris | |
53 # include "thread_solaris.inline.hpp" | |
54 #endif | |
55 #ifdef TARGET_OS_FAMILY_windows | |
56 # include "thread_windows.inline.hpp" | |
57 #endif | |
0 | 58 |
710 | 59 static bool find_field(instanceKlass* ik, |
60 symbolOop name_symbol, symbolOop signature_symbol, | |
61 fieldDescriptor* fd, | |
62 bool allow_super = false) { | |
63 if (allow_super) | |
64 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
65 else | |
66 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
67 } | |
68 | |
132
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69 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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70 static void |
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71 compute_offset(int &dest_offset, |
710 | 72 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
73 bool allow_super = false) { | |
132
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74 fieldDescriptor fd; |
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75 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 76 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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77 ResourceMark rm; |
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78 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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79 fatal("Invalid layout of preloaded class"); |
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80 } |
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81 dest_offset = fd.offset(); |
0 | 82 } |
83 | |
84 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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85 static void |
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86 compute_optional_offset(int& dest_offset, |
710 | 87 klassOop klass_oop, symbolOop name_symbol, symbolOop signature_symbol, |
88 bool allow_super = false) { | |
132
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89 fieldDescriptor fd; |
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90 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 91 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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92 dest_offset = fd.offset(); |
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93 } |
0 | 94 } |
95 | |
710 | 96 |
0 | 97 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
98 // Create the String object first, so there's a chance that the String | |
99 // and the char array it points to end up in the same cache line. | |
100 oop obj; | |
101 if (tenured) { | |
1142 | 102 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 103 } else { |
1142 | 104 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 105 } |
106 | |
107 // Create the char array. The String object must be handlized here | |
108 // because GC can happen as a result of the allocation attempt. | |
109 Handle h_obj(THREAD, obj); | |
110 typeArrayOop buffer; | |
111 if (tenured) { | |
112 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
113 } else { | |
114 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
115 } | |
116 | |
117 // Point the String at the char array | |
118 obj = h_obj(); | |
119 set_value(obj, buffer); | |
120 // No need to zero the offset, allocation zero'ed the entire String object | |
121 assert(offset(obj) == 0, "initial String offset should be zero"); | |
122 //set_offset(obj, 0); | |
123 set_count(obj, length); | |
124 | |
125 return h_obj; | |
126 } | |
127 | |
128 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
129 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
130 typeArrayOop buffer = value(h_obj()); | |
131 for (int index = 0; index < length; index++) { | |
132 buffer->char_at_put(index, unicode[index]); | |
133 } | |
134 return h_obj; | |
135 } | |
136 | |
137 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
138 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
139 } | |
140 | |
141 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
142 return basic_create_from_unicode(unicode, length, true, CHECK_NH); | |
143 } | |
144 | |
145 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
146 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
147 return h_obj(); | |
148 } | |
149 | |
150 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
151 if (utf8_str == NULL) { | |
152 return Handle(); | |
153 } | |
154 int length = UTF8::unicode_length(utf8_str); | |
155 Handle h_obj = basic_create(length, false, CHECK_NH); | |
156 if (length > 0) { | |
157 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
158 } | |
159 return h_obj; | |
160 } | |
161 | |
162 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
163 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
164 return h_obj(); | |
165 } | |
166 | |
167 Handle java_lang_String::create_from_symbol(symbolHandle symbol, TRAPS) { | |
168 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); | |
169 Handle h_obj = basic_create(length, false, CHECK_NH); | |
170 if (length > 0) { | |
171 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
172 } | |
173 return h_obj; | |
174 } | |
175 | |
176 // Converts a C string to a Java String based on current encoding | |
177 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
178 assert(str != NULL, "bad arguments"); | |
179 | |
180 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
181 static to_java_string_fn_t _to_java_string_fn = NULL; | |
182 | |
183 if (_to_java_string_fn == NULL) { | |
184 void *lib_handle = os::native_java_library(); | |
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185 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 186 if (_to_java_string_fn == NULL) { |
187 fatal("NewStringPlatform missing"); | |
188 } | |
189 } | |
190 | |
191 jstring js = NULL; | |
192 { JavaThread* thread = (JavaThread*)THREAD; | |
193 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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194 HandleMark hm(thread); |
0 | 195 ThreadToNativeFromVM ttn(thread); |
196 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
197 } | |
198 return Handle(THREAD, JNIHandles::resolve(js)); | |
199 } | |
200 | |
22
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201 // Converts a Java String to a native C string that can be used for |
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202 // native OS calls. |
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203 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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204 |
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205 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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206 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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207 |
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208 if (_to_platform_string_fn == NULL) { |
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209 void *lib_handle = os::native_java_library(); |
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210 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
22
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211 if (_to_platform_string_fn == NULL) { |
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212 fatal("GetStringPlatformChars missing"); |
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213 } |
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214 } |
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215 |
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216 char *native_platform_string; |
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217 { JavaThread* thread = (JavaThread*)THREAD; |
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218 assert(thread->is_Java_thread(), "must be java thread"); |
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219 JNIEnv *env = thread->jni_environment(); |
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220 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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221 bool is_copy; |
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222 HandleMark hm(thread); |
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223 ThreadToNativeFromVM ttn(thread); |
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224 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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225 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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226 JNIHandles::destroy_local(js); |
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227 } |
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228 return native_platform_string; |
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229 } |
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230 |
0 | 231 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
232 oop obj = java_string(); | |
233 // Typical usage is to convert all '/' to '.' in string. | |
234 typeArrayOop value = java_lang_String::value(obj); | |
235 int offset = java_lang_String::offset(obj); | |
236 int length = java_lang_String::length(obj); | |
237 | |
238 // First check if any from_char exist | |
239 int index; // Declared outside, used later | |
240 for (index = 0; index < length; index++) { | |
241 if (value->char_at(index + offset) == from_char) { | |
242 break; | |
243 } | |
244 } | |
245 if (index == length) { | |
246 // No from_char, so do not copy. | |
247 return java_string; | |
248 } | |
249 | |
250 // Create new UNICODE buffer. Must handlize value because GC | |
251 // may happen during String and char array creation. | |
252 typeArrayHandle h_value(THREAD, value); | |
253 Handle string = basic_create(length, false, CHECK_NH); | |
254 | |
255 typeArrayOop from_buffer = h_value(); | |
256 typeArrayOop to_buffer = java_lang_String::value(string()); | |
257 | |
258 // Copy contents | |
259 for (index = 0; index < length; index++) { | |
260 jchar c = from_buffer->char_at(index + offset); | |
261 if (c == from_char) { | |
262 c = to_char; | |
263 } | |
264 to_buffer->char_at_put(index, c); | |
265 } | |
266 return string; | |
267 } | |
268 | |
269 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
270 typeArrayOop value = java_lang_String::value(java_string); | |
271 int offset = java_lang_String::offset(java_string); | |
272 length = java_lang_String::length(java_string); | |
273 | |
274 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
275 for (int index = 0; index < length; index++) { | |
276 result[index] = value->char_at(index + offset); | |
277 } | |
278 return result; | |
279 } | |
280 | |
281 symbolHandle java_lang_String::as_symbol(Handle java_string, TRAPS) { | |
282 oop obj = java_string(); | |
283 typeArrayOop value = java_lang_String::value(obj); | |
284 int offset = java_lang_String::offset(obj); | |
285 int length = java_lang_String::length(obj); | |
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286 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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287 symbolOop sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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288 return symbolHandle(THREAD, sym); |
0 | 289 } |
290 | |
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291 symbolOop java_lang_String::as_symbol_or_null(oop java_string) { |
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292 typeArrayOop value = java_lang_String::value(java_string); |
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293 int offset = java_lang_String::offset(java_string); |
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294 int length = java_lang_String::length(java_string); |
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295 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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296 return SymbolTable::probe_unicode(base, length); |
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297 } |
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298 |
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299 |
0 | 300 int java_lang_String::utf8_length(oop java_string) { |
301 typeArrayOop value = java_lang_String::value(java_string); | |
302 int offset = java_lang_String::offset(java_string); | |
303 int length = java_lang_String::length(java_string); | |
304 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
305 return UNICODE::utf8_length(position, length); | |
306 } | |
307 | |
308 char* java_lang_String::as_utf8_string(oop java_string) { | |
309 typeArrayOop value = java_lang_String::value(java_string); | |
310 int offset = java_lang_String::offset(java_string); | |
311 int length = java_lang_String::length(java_string); | |
312 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
313 return UNICODE::as_utf8(position, length); | |
314 } | |
315 | |
316 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { | |
317 typeArrayOop value = java_lang_String::value(java_string); | |
318 int offset = java_lang_String::offset(java_string); | |
319 int length = java_lang_String::length(java_string); | |
320 assert(start + len <= length, "just checking"); | |
321 jchar* position = value->char_at_addr(offset + start); | |
322 return UNICODE::as_utf8(position, len); | |
323 } | |
324 | |
325 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
326 assert(SharedSkipVerify || | |
1142 | 327 java_string->klass() == SystemDictionary::String_klass(), |
0 | 328 "must be java_string"); |
329 typeArrayOop value = java_lang_String::value(java_string); | |
330 int offset = java_lang_String::offset(java_string); | |
331 int length = java_lang_String::length(java_string); | |
332 if (length != len) { | |
333 return false; | |
334 } | |
335 for (int i = 0; i < len; i++) { | |
336 if (value->char_at(i + offset) != chars[i]) { | |
337 return false; | |
338 } | |
339 } | |
340 return true; | |
341 } | |
342 | |
343 void java_lang_String::print(Handle java_string, outputStream* st) { | |
344 oop obj = java_string(); | |
1142 | 345 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 346 typeArrayOop value = java_lang_String::value(obj); |
347 int offset = java_lang_String::offset(obj); | |
348 int length = java_lang_String::length(obj); | |
349 | |
350 int end = MIN2(length, 100); | |
351 if (value == NULL) { | |
352 // This can happen if, e.g., printing a String | |
353 // object before its initializer has been called | |
354 st->print_cr("NULL"); | |
355 } else { | |
356 st->print("\""); | |
357 for (int index = 0; index < length; index++) { | |
358 st->print("%c", value->char_at(index + offset)); | |
359 } | |
360 st->print("\""); | |
361 } | |
362 } | |
363 | |
364 | |
365 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
366 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
367 // Use this moment of initialization to cache modifier_flags also, | |
368 // to support Class.getModifiers(). Instance classes recalculate | |
369 // the cached flags after the class file is parsed, but before the | |
370 // class is put into the system dictionary. | |
371 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
372 k->set_modifier_flags(computed_modifiers); | |
1142 | 373 if (SystemDictionary::Class_klass_loaded()) { |
0 | 374 // Allocate mirror (java.lang.Class instance) |
1142 | 375 Handle mirror = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
0 | 376 // Setup indirections |
377 mirror->obj_field_put(klass_offset, k()); | |
378 k->set_java_mirror(mirror()); | |
379 // It might also have a component mirror. This mirror must already exist. | |
380 if (k->oop_is_javaArray()) { | |
381 Handle comp_mirror; | |
382 if (k->oop_is_typeArray()) { | |
383 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
384 comp_mirror = Universe::java_mirror(type); | |
385 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
386 } else if (k->oop_is_objArray()) { | |
387 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
388 if (element_klass != NULL | |
389 && (Klass::cast(element_klass)->oop_is_instance() || | |
390 Klass::cast(element_klass)->oop_is_javaArray())) { | |
391 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
392 assert(comp_mirror.not_null(), "must have element mirror"); | |
393 } | |
394 // else some object array internal to the VM, like systemObjArrayKlassObj | |
395 } | |
396 if (comp_mirror.not_null()) { | |
397 // Two-way link between the array klass and its component mirror: | |
398 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
399 set_array_klass(comp_mirror(), k->as_klassOop()); | |
400 } | |
401 } | |
402 return mirror(); | |
403 } else { | |
404 return NULL; | |
405 } | |
406 } | |
407 | |
408 | |
409 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { | |
410 // This should be improved by adding a field at the Java level or by | |
411 // introducing a new VM klass (see comment in ClassFileParser) | |
1142 | 412 oop java_class = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
0 | 413 if (type != T_VOID) { |
414 klassOop aklass = Universe::typeArrayKlassObj(type); | |
415 assert(aklass != NULL, "correct bootstrap"); | |
416 set_array_klass(java_class, aklass); | |
417 } | |
418 return java_class; | |
419 } | |
420 | |
421 | |
422 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
423 //%note memory_2 | |
424 klassOop k = klassOop(java_class->obj_field(klass_offset)); | |
425 assert(k == NULL || k->is_klass(), "type check"); | |
426 return k; | |
427 } | |
428 | |
429 | |
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430 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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431 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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432 symbolOop name = NULL; |
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433 bool is_instance = false; |
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434 if (is_primitive(java_class)) { |
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435 name = vmSymbols::type_signature(primitive_type(java_class)); |
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436 } else { |
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437 klassOop k = as_klassOop(java_class); |
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438 is_instance = Klass::cast(k)->oop_is_instance(); |
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439 name = Klass::cast(k)->name(); |
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440 } |
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441 if (name == NULL) { |
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442 st->print("<null>"); |
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443 return; |
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444 } |
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445 if (is_instance) st->print("L"); |
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446 st->write((char*) name->base(), (int) name->utf8_length()); |
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447 if (is_instance) st->print(";"); |
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448 } |
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449 |
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450 symbolOop java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
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451 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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452 symbolOop name = NULL; |
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453 if (is_primitive(java_class)) { |
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454 return vmSymbols::type_signature(primitive_type(java_class)); |
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455 } else { |
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456 klassOop k = as_klassOop(java_class); |
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457 if (!Klass::cast(k)->oop_is_instance()) { |
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458 return Klass::cast(k)->name(); |
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459 } else { |
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460 ResourceMark rm; |
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461 const char* sigstr = Klass::cast(k)->signature_name(); |
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462 int siglen = (int) strlen(sigstr); |
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463 if (!intern_if_not_found) |
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464 return SymbolTable::probe(sigstr, siglen); |
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465 else |
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466 return oopFactory::new_symbol(sigstr, siglen, THREAD); |
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467 } |
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468 } |
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469 } |
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470 |
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471 |
0 | 472 klassOop java_lang_Class::array_klass(oop java_class) { |
473 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
474 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
475 return k; | |
476 } | |
477 | |
478 | |
479 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
480 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
481 java_class->obj_field_put(array_klass_offset, klass); | |
482 } | |
483 | |
484 | |
485 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
486 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
487 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
488 return methodOop(constructor); | |
489 } | |
490 | |
491 | |
492 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
493 assert(constructor->is_method(), "should be method"); | |
494 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
495 } | |
496 | |
497 | |
498 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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499 // should assert: |
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500 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 501 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
502 return k == NULL; | |
503 } | |
504 | |
505 | |
506 BasicType java_lang_Class::primitive_type(oop java_class) { | |
507 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
508 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
509 BasicType type = T_VOID; | |
510 if (ak != NULL) { | |
511 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
512 type = arrayKlass::cast(ak)->element_type(); | |
513 } else { | |
514 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
515 } | |
516 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
517 return type; | |
518 } | |
519 | |
665
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520 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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521 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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522 if (is_primitive(java_class)) { |
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523 if (reference_klass != NULL) |
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524 (*reference_klass) = NULL; |
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525 return primitive_type(java_class); |
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526 } else { |
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527 if (reference_klass != NULL) |
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528 (*reference_klass) = as_klassOop(java_class); |
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529 return T_OBJECT; |
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530 } |
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531 } |
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532 |
0 | 533 |
534 oop java_lang_Class::primitive_mirror(BasicType t) { | |
535 oop mirror = Universe::java_mirror(t); | |
1142 | 536 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 537 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
538 return mirror; | |
539 } | |
540 | |
541 bool java_lang_Class::offsets_computed = false; | |
542 int java_lang_Class::classRedefinedCount_offset = -1; | |
514 | 543 int java_lang_Class::parallelCapable_offset = -1; |
0 | 544 |
545 void java_lang_Class::compute_offsets() { | |
546 assert(!offsets_computed, "offsets should be initialized only once"); | |
547 offsets_computed = true; | |
548 | |
1142 | 549 klassOop k = SystemDictionary::Class_klass(); |
0 | 550 // The classRedefinedCount field is only present starting in 1.5, |
551 // so don't go fatal. | |
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552 compute_optional_offset(classRedefinedCount_offset, |
0 | 553 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
514 | 554 |
555 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
1142 | 556 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
514 | 557 compute_optional_offset(parallelCapable_offset, |
558 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
559 } | |
560 | |
561 // For class loader classes, parallelCapable defined | |
562 // based on non-null field | |
563 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
564 bool java_lang_Class::parallelCapable(oop class_loader) { | |
565 if (!JDK_Version::is_gte_jdk17x_version() | |
566 || parallelCapable_offset == -1) { | |
567 // Default for backward compatibility is false | |
568 return false; | |
569 } | |
570 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
0 | 571 } |
572 | |
573 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
574 if (!JDK_Version::is_gte_jdk15x_version() | |
575 || classRedefinedCount_offset == -1) { | |
576 // The classRedefinedCount field is only present starting in 1.5. | |
577 // If we don't have an offset for it then just return -1 as a marker. | |
578 return -1; | |
579 } | |
580 | |
581 return the_class_mirror->int_field(classRedefinedCount_offset); | |
582 } | |
583 | |
584 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
585 if (!JDK_Version::is_gte_jdk15x_version() | |
586 || classRedefinedCount_offset == -1) { | |
587 // The classRedefinedCount field is only present starting in 1.5. | |
588 // If we don't have an offset for it then nothing to set. | |
589 return; | |
590 } | |
591 | |
592 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
593 } | |
594 | |
595 | |
596 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
597 // platform thread structure, and a eetop offset which was used for thread | |
598 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
599 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
600 // instead of the privateInfo_offset. | |
601 // | |
602 // Note: The stackSize field is only present starting in 1.4. | |
603 | |
604 int java_lang_Thread::_name_offset = 0; | |
605 int java_lang_Thread::_group_offset = 0; | |
606 int java_lang_Thread::_contextClassLoader_offset = 0; | |
607 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
608 int java_lang_Thread::_priority_offset = 0; | |
609 int java_lang_Thread::_eetop_offset = 0; | |
610 int java_lang_Thread::_daemon_offset = 0; | |
611 int java_lang_Thread::_stillborn_offset = 0; | |
612 int java_lang_Thread::_stackSize_offset = 0; | |
613 int java_lang_Thread::_tid_offset = 0; | |
614 int java_lang_Thread::_thread_status_offset = 0; | |
615 int java_lang_Thread::_park_blocker_offset = 0; | |
616 int java_lang_Thread::_park_event_offset = 0 ; | |
617 | |
618 | |
619 void java_lang_Thread::compute_offsets() { | |
620 assert(_group_offset == 0, "offsets should be initialized only once"); | |
621 | |
1142 | 622 klassOop k = SystemDictionary::Thread_klass(); |
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623 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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624 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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625 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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626 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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627 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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628 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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629 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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630 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 631 // The stackSize field is only present starting in 1.4, so don't go fatal. |
132
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632 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 633 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
132
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634 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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635 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 636 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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637 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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638 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 639 vmSymbols::long_signature()); |
640 } | |
641 | |
642 | |
643 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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644 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 645 } |
646 | |
647 | |
648 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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649 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 650 } |
651 | |
652 | |
653 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
654 oop name = java_thread->obj_field(_name_offset); | |
655 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
656 return typeArrayOop(name); | |
657 } | |
658 | |
659 | |
660 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
661 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
662 java_thread->obj_field_put(_name_offset, name); | |
663 } | |
664 | |
665 | |
666 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
667 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
668 } | |
669 | |
670 | |
671 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
672 java_thread->int_field_put(_priority_offset, priority); | |
673 } | |
674 | |
675 | |
676 oop java_lang_Thread::threadGroup(oop java_thread) { | |
677 return java_thread->obj_field(_group_offset); | |
678 } | |
679 | |
680 | |
681 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
682 return java_thread->bool_field(_stillborn_offset) != 0; | |
683 } | |
684 | |
685 | |
686 // We never have reason to turn the stillborn bit off | |
687 void java_lang_Thread::set_stillborn(oop java_thread) { | |
688 java_thread->bool_field_put(_stillborn_offset, true); | |
689 } | |
690 | |
691 | |
692 bool java_lang_Thread::is_alive(oop java_thread) { | |
693 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
694 return (thr != NULL); | |
695 } | |
696 | |
697 | |
698 bool java_lang_Thread::is_daemon(oop java_thread) { | |
699 return java_thread->bool_field(_daemon_offset) != 0; | |
700 } | |
701 | |
702 | |
703 void java_lang_Thread::set_daemon(oop java_thread) { | |
704 java_thread->bool_field_put(_daemon_offset, true); | |
705 } | |
706 | |
707 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
708 return java_thread->obj_field(_contextClassLoader_offset); | |
709 } | |
710 | |
711 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
712 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
713 } | |
714 | |
715 | |
716 jlong java_lang_Thread::stackSize(oop java_thread) { | |
717 // The stackSize field is only present starting in 1.4 | |
718 if (_stackSize_offset > 0) { | |
719 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
720 return java_thread->long_field(_stackSize_offset); | |
721 } else { | |
722 return 0; | |
723 } | |
724 } | |
725 | |
726 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
727 void java_lang_Thread::set_thread_status(oop java_thread, | |
728 java_lang_Thread::ThreadStatus status) { | |
729 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
730 // The threadStatus is only present starting in 1.5 | |
731 if (_thread_status_offset > 0) { | |
732 java_thread->int_field_put(_thread_status_offset, status); | |
733 } | |
734 } | |
735 | |
736 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
737 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
738 assert(Thread::current()->is_VM_thread() || | |
739 JavaThread::current()->thread_state() == _thread_in_vm, | |
740 "Java Thread is not running in vm"); | |
741 // The threadStatus is only present starting in 1.5 | |
742 if (_thread_status_offset > 0) { | |
743 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
744 } else { | |
745 // All we can easily figure out is if it is alive, but that is | |
746 // enough info for a valid unknown status. | |
747 // These aren't restricted to valid set ThreadStatus values, so | |
748 // use JVMTI values and cast. | |
749 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
750 if (thr == NULL) { | |
751 // the thread hasn't run yet or is in the process of exiting | |
752 return NEW; | |
753 } | |
754 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
755 } | |
756 } | |
757 | |
758 | |
759 jlong java_lang_Thread::thread_id(oop java_thread) { | |
760 // The thread ID field is only present starting in 1.5 | |
761 if (_tid_offset > 0) { | |
762 return java_thread->long_field(_tid_offset); | |
763 } else { | |
764 return 0; | |
765 } | |
766 } | |
767 | |
768 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 769 assert(JDK_Version::current().supports_thread_park_blocker() && |
770 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 771 |
772 if (_park_blocker_offset > 0) { | |
773 return java_thread->obj_field(_park_blocker_offset); | |
774 } | |
775 | |
776 return NULL; | |
777 } | |
778 | |
779 jlong java_lang_Thread::park_event(oop java_thread) { | |
780 if (_park_event_offset > 0) { | |
781 return java_thread->long_field(_park_event_offset); | |
782 } | |
783 return 0; | |
784 } | |
785 | |
786 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
787 if (_park_event_offset > 0) { | |
788 java_thread->long_field_put(_park_event_offset, ptr); | |
789 return true; | |
790 } | |
791 return false; | |
792 } | |
793 | |
794 | |
795 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
796 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
797 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
798 switch (status) { | |
799 case NEW : return "NEW"; | |
800 case RUNNABLE : return "RUNNABLE"; | |
801 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
802 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
803 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
804 case PARKED : return "WAITING (parking)"; | |
805 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
806 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
807 case TERMINATED : return "TERMINATED"; | |
808 default : return "UNKNOWN"; | |
809 }; | |
810 } | |
811 int java_lang_ThreadGroup::_parent_offset = 0; | |
812 int java_lang_ThreadGroup::_name_offset = 0; | |
813 int java_lang_ThreadGroup::_threads_offset = 0; | |
814 int java_lang_ThreadGroup::_groups_offset = 0; | |
815 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
816 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
817 int java_lang_ThreadGroup::_daemon_offset = 0; | |
818 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
819 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
820 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
821 | |
822 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
823 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
824 return java_thread_group->obj_field(_parent_offset); | |
825 } | |
826 | |
827 // ("name as oop" accessor is not necessary) | |
828 | |
829 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
830 oop name = java_thread_group->obj_field(_name_offset); | |
831 // ThreadGroup.name can be null | |
832 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
833 } | |
834 | |
835 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
836 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
837 return java_thread_group->int_field(_nthreads_offset); | |
838 } | |
839 | |
840 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
841 oop threads = java_thread_group->obj_field(_threads_offset); | |
842 assert(threads != NULL, "threadgroups should have threads"); | |
843 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
844 return objArrayOop(threads); | |
845 } | |
846 | |
847 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
848 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
849 return java_thread_group->int_field(_ngroups_offset); | |
850 } | |
851 | |
852 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
853 oop groups = java_thread_group->obj_field(_groups_offset); | |
854 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
855 return objArrayOop(groups); | |
856 } | |
857 | |
858 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
859 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
860 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
861 } | |
862 | |
863 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
864 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
865 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
866 } | |
867 | |
868 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
869 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
870 return java_thread_group->bool_field(_daemon_offset) != 0; | |
871 } | |
872 | |
873 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
874 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
875 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
876 } | |
877 | |
878 void java_lang_ThreadGroup::compute_offsets() { | |
879 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
880 | |
1142 | 881 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 882 |
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883 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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884 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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885 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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886 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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887 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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888 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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889 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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890 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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891 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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892 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 893 } |
894 | |
895 oop java_lang_Throwable::backtrace(oop throwable) { | |
896 return throwable->obj_field_acquire(backtrace_offset); | |
897 } | |
898 | |
899 | |
900 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
901 throwable->release_obj_field_put(backtrace_offset, value); | |
902 } | |
903 | |
904 | |
905 oop java_lang_Throwable::message(oop throwable) { | |
906 return throwable->obj_field(detailMessage_offset); | |
907 } | |
908 | |
909 | |
910 oop java_lang_Throwable::message(Handle throwable) { | |
911 return throwable->obj_field(detailMessage_offset); | |
912 } | |
913 | |
914 | |
915 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
916 throwable->obj_field_put(detailMessage_offset, value); | |
917 } | |
918 | |
919 | |
920 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
921 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
922 throwable->obj_field_put(stackTrace_offset, NULL); | |
923 } | |
924 | |
925 | |
926 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
927 ResourceMark rm; | |
928 klassOop k = throwable->klass(); | |
929 assert(k != NULL, "just checking"); | |
930 st->print("%s", instanceKlass::cast(k)->external_name()); | |
931 oop msg = message(throwable); | |
932 if (msg != NULL) { | |
933 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
934 } | |
935 } | |
936 | |
937 | |
938 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
939 ResourceMark rm; | |
940 klassOop k = throwable->klass(); | |
941 assert(k != NULL, "just checking"); | |
942 st->print("%s", instanceKlass::cast(k)->external_name()); | |
943 oop msg = message(throwable); | |
944 if (msg != NULL) { | |
945 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
946 } | |
947 } | |
948 | |
949 // Print stack trace element to resource allocated buffer | |
950 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
951 // Get strings and string lengths | |
952 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
953 const char* klass_name = klass->external_name(); | |
954 int buf_len = (int)strlen(klass_name); | |
955 char* source_file_name; | |
956 if (klass->source_file_name() == NULL) { | |
957 source_file_name = NULL; | |
958 } else { | |
959 source_file_name = klass->source_file_name()->as_C_string(); | |
960 buf_len += (int)strlen(source_file_name); | |
961 } | |
962 char* method_name = method->name()->as_C_string(); | |
963 buf_len += (int)strlen(method_name); | |
964 | |
965 // Allocate temporary buffer with extra space for formatting and line number | |
966 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
967 | |
968 // Print stack trace line in buffer | |
969 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
970 if (method->is_native()) { | |
971 strcat(buf, "(Native Method)"); | |
972 } else { | |
973 int line_number = method->line_number_from_bci(bci); | |
974 if (source_file_name != NULL && (line_number != -1)) { | |
975 // Sourcename and linenumber | |
976 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
977 } else if (source_file_name != NULL) { | |
978 // Just sourcename | |
979 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
980 } else { | |
981 // Neither soucename and linenumber | |
982 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
983 } | |
984 nmethod* nm = method->code(); | |
985 if (WizardMode && nm != NULL) { | |
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986 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
0 | 987 } |
988 } | |
989 | |
990 return buf; | |
991 } | |
992 | |
993 | |
994 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
995 ResourceMark rm; | |
996 char* buf = print_stack_element_to_buffer(method, bci); | |
997 print_to_stream(stream, buf); | |
998 } | |
999 | |
1000 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1001 ResourceMark rm; | |
1002 char* buf = print_stack_element_to_buffer(method, bci); | |
1003 st->print_cr("%s", buf); | |
1004 } | |
1005 | |
1006 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1007 if (stream.is_null()) { | |
1008 tty->print_cr("%s", str); | |
1009 } else { | |
1010 EXCEPTION_MARK; | |
1011 JavaValue result(T_VOID); | |
1012 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1013 if (!HAS_PENDING_EXCEPTION) { | |
1014 JavaCalls::call_virtual(&result, | |
1015 stream, | |
1016 KlassHandle(THREAD, stream->klass()), | |
1017 vmSymbolHandles::println_name(), | |
1018 vmSymbolHandles::char_array_void_signature(), | |
1019 arg, | |
1020 THREAD); | |
1021 } | |
1022 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1023 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1024 } | |
1025 | |
1026 } | |
1027 | |
1028 | |
1029 const char* java_lang_Throwable::no_stack_trace_message() { | |
1030 return "\t<<no stack trace available>>"; | |
1031 } | |
1032 | |
1033 | |
1034 // Currently used only for exceptions occurring during startup | |
1035 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1036 Thread *THREAD = Thread::current(); | |
1037 Handle h_throwable(THREAD, throwable); | |
1038 while (h_throwable.not_null()) { | |
1039 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1040 if (result.is_null()) { | |
1041 st->print_cr(no_stack_trace_message()); | |
1042 return; | |
1043 } | |
1044 | |
1045 while (result.not_null()) { | |
1046 objArrayHandle methods (THREAD, | |
1047 objArrayOop(result->obj_at(trace_methods_offset))); | |
1048 typeArrayHandle bcis (THREAD, | |
1049 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1050 | |
1051 if (methods.is_null() || bcis.is_null()) { | |
1052 st->print_cr(no_stack_trace_message()); | |
1053 return; | |
1054 } | |
1055 | |
1056 int length = methods()->length(); | |
1057 for (int index = 0; index < length; index++) { | |
1058 methodOop method = methodOop(methods()->obj_at(index)); | |
1059 if (method == NULL) goto handle_cause; | |
1060 int bci = bcis->ushort_at(index); | |
1061 print_stack_element(st, method, bci); | |
1062 } | |
1063 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1064 } | |
1065 handle_cause: | |
1066 { | |
1067 EXCEPTION_MARK; | |
1068 JavaValue result(T_OBJECT); | |
1069 JavaCalls::call_virtual(&result, | |
1070 h_throwable, | |
1071 KlassHandle(THREAD, h_throwable->klass()), | |
1072 vmSymbolHandles::getCause_name(), | |
1073 vmSymbolHandles::void_throwable_signature(), | |
1074 THREAD); | |
1075 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1076 if (HAS_PENDING_EXCEPTION) { | |
1077 CLEAR_PENDING_EXCEPTION; | |
1078 h_throwable = Handle(); | |
1079 } else { | |
1080 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1081 if (h_throwable.not_null()) { | |
1082 st->print("Caused by: "); | |
1083 print(h_throwable, st); | |
1084 st->cr(); | |
1085 } | |
1086 } | |
1087 } | |
1088 } | |
1089 } | |
1090 | |
1091 | |
1092 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1093 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1094 Thread *thread = Thread::current(); | |
1095 Handle stream(thread, print_stream); | |
1096 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1097 if (result.is_null()) { | |
1098 print_to_stream(stream, no_stack_trace_message()); | |
1099 return; | |
1100 } | |
1101 | |
1102 while (result.not_null()) { | |
1103 objArrayHandle methods (thread, | |
1104 objArrayOop(result->obj_at(trace_methods_offset))); | |
1105 typeArrayHandle bcis (thread, | |
1106 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1107 | |
1108 if (methods.is_null() || bcis.is_null()) { | |
1109 print_to_stream(stream, no_stack_trace_message()); | |
1110 return; | |
1111 } | |
1112 | |
1113 int length = methods()->length(); | |
1114 for (int index = 0; index < length; index++) { | |
1115 methodOop method = methodOop(methods()->obj_at(index)); | |
1116 if (method == NULL) return; | |
1117 int bci = bcis->ushort_at(index); | |
1118 print_stack_element(stream, method, bci); | |
1119 } | |
1120 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1121 } | |
1122 } | |
1123 | |
1124 // This class provides a simple wrapper over the internal structure of | |
1125 // exception backtrace to insulate users of the backtrace from needing | |
1126 // to know what it looks like. | |
1127 class BacktraceBuilder: public StackObj { | |
1128 private: | |
1129 Handle _backtrace; | |
1130 objArrayOop _head; | |
1131 objArrayOop _methods; | |
1132 typeArrayOop _bcis; | |
1133 int _index; | |
1134 bool _dirty; | |
1135 No_Safepoint_Verifier _nsv; | |
1136 | |
1137 public: | |
1138 | |
1139 enum { | |
1140 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1141 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1142 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1143 trace_size = java_lang_Throwable::trace_size, | |
1144 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1145 }; | |
1146 | |
1147 // constructor for new backtrace | |
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1148 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
0 | 1149 expand(CHECK); |
1150 _backtrace = _head; | |
1151 _index = 0; | |
1152 } | |
1153 | |
1154 void flush() { | |
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1155 // The following appears to have been an optimization to save from |
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1156 // doing a barrier for each individual store into the _methods array, |
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1157 // but rather to do it for the entire array after the series of writes. |
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1158 // That optimization seems to have been lost when compressed oops was |
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1159 // implemented. However, the extra card-marks below was left in place, |
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1160 // but is now redundant because the individual stores into the |
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1161 // _methods array already execute the barrier code. CR 6918185 has |
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1162 // been filed so the original code may be restored by deferring the |
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1163 // barriers until after the entire sequence of stores, thus re-enabling |
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1164 // the intent of the original optimization. In the meantime the redundant |
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1165 // card mark below is now disabled. |
0 | 1166 if (_dirty && _methods != NULL) { |
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1167 #if 0 |
0 | 1168 BarrierSet* bs = Universe::heap()->barrier_set(); |
1169 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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1170 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
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1171 #endif |
0 | 1172 _dirty = false; |
1173 } | |
1174 } | |
1175 | |
1176 void expand(TRAPS) { | |
1177 flush(); | |
1178 | |
1179 objArrayHandle old_head(THREAD, _head); | |
1180 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1181 | |
1182 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1183 objArrayHandle new_head(THREAD, head); | |
1184 | |
1185 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1186 objArrayHandle new_methods(THREAD, methods); | |
1187 | |
1188 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1189 typeArrayHandle new_bcis(THREAD, bcis); | |
1190 | |
1191 if (!old_head.is_null()) { | |
1192 old_head->obj_at_put(trace_next_offset, new_head()); | |
1193 } | |
1194 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1195 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1196 | |
1197 _head = new_head(); | |
1198 _methods = new_methods(); | |
1199 _bcis = new_bcis(); | |
1200 _index = 0; | |
1201 } | |
1202 | |
1203 oop backtrace() { | |
1204 flush(); | |
1205 return _backtrace(); | |
1206 } | |
1207 | |
1208 inline void push(methodOop method, short bci, TRAPS) { | |
1209 if (_index >= trace_chunk_size) { | |
1210 methodHandle mhandle(THREAD, method); | |
1211 expand(CHECK); | |
1212 method = mhandle(); | |
1213 } | |
1214 | |
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1215 _methods->obj_at_put(_index, method); |
0 | 1216 _bcis->ushort_at_put(_index, bci); |
1217 _index++; | |
1218 _dirty = true; | |
1219 } | |
1220 | |
1221 methodOop current_method() { | |
1222 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1223 return methodOop(_methods->obj_at(_index)); | |
1224 } | |
1225 | |
1226 jushort current_bci() { | |
1227 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1228 return _bcis->ushort_at(_index); | |
1229 } | |
1230 }; | |
1231 | |
1232 | |
1233 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
1234 if (!StackTraceInThrowable) return; | |
1235 ResourceMark rm(THREAD); | |
1236 | |
1237 // Start out by clearing the backtrace for this object, in case the VM | |
1238 // runs out of memory while allocating the stack trace | |
1239 set_backtrace(throwable(), NULL); | |
1240 if (JDK_Version::is_gte_jdk14x_version()) { | |
1241 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1242 // refilling occurs | |
1243 clear_stacktrace(throwable()); | |
1244 } | |
1245 | |
1246 int max_depth = MaxJavaStackTraceDepth; | |
1247 JavaThread* thread = (JavaThread*)THREAD; | |
1248 BacktraceBuilder bt(CHECK); | |
1249 | |
1250 // Instead of using vframe directly, this version of fill_in_stack_trace | |
1251 // basically handles everything by hand. This significantly improved the | |
1252 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1253 // See bug 6333838 for more details. | |
1254 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1255 // trace as utilizing vframe. | |
1256 #ifdef ASSERT | |
1257 vframeStream st(thread); | |
1258 methodHandle st_method(THREAD, st.method()); | |
1259 #endif | |
1260 int total_count = 0; | |
1261 RegisterMap map(thread, false); | |
1262 int decode_offset = 0; | |
1263 nmethod* nm = NULL; | |
1264 bool skip_fillInStackTrace_check = false; | |
1265 bool skip_throwableInit_check = false; | |
1266 | |
1267 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1268 methodOop method = NULL; | |
1269 int bci = 0; | |
1270 | |
1271 // Compiled java method case. | |
1272 if (decode_offset != 0) { | |
1273 DebugInfoReadStream stream(nm, decode_offset); | |
1274 decode_offset = stream.read_int(); | |
1275 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1276 bci = stream.read_bci(); |
0 | 1277 } else { |
1278 if (fr.is_first_frame()) break; | |
1279 address pc = fr.pc(); | |
1280 if (fr.is_interpreted_frame()) { | |
1281 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1282 method = fr.interpreter_frame_method(); | |
1283 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1284 fr = fr.sender(&map); | |
1285 } else { | |
1286 CodeBlob* cb = fr.cb(); | |
1287 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1288 // but non nmethod | |
1289 fr = fr.sender(&map); | |
1290 if (cb == NULL || !cb->is_nmethod()) { | |
1291 continue; | |
1292 } | |
1293 nm = (nmethod*)cb; | |
1294 if (nm->method()->is_native()) { | |
1295 method = nm->method(); | |
1296 bci = 0; | |
1297 } else { | |
1298 PcDesc* pd = nm->pc_desc_at(pc); | |
1299 decode_offset = pd->scope_decode_offset(); | |
1300 // if decode_offset is not equal to 0, it will execute the | |
1301 // "compiled java method case" at the beginning of the loop. | |
1302 continue; | |
1303 } | |
1304 } | |
1305 } | |
1306 #ifdef ASSERT | |
1307 assert(st_method() == method && st.bci() == bci, | |
1308 "Wrong stack trace"); | |
1309 st.next(); | |
1310 // vframeStream::method isn't GC-safe so store off a copy | |
1311 // of the methodOop in case we GC. | |
1312 if (!st.at_end()) { | |
1313 st_method = st.method(); | |
1314 } | |
1315 #endif | |
1316 if (!skip_fillInStackTrace_check) { | |
1317 // check "fillInStackTrace" only once, so we negate the flag | |
1318 // after the first time check. | |
1319 skip_fillInStackTrace_check = true; | |
1320 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
1321 continue; | |
1322 } | |
1323 } | |
1324 // skip <init> methods of the exceptions klass. If there is <init> methods | |
1325 // that belongs to a superclass of the exception we are going to skipping | |
1326 // them in stack trace. This is simlar to classic VM. | |
1327 if (!skip_throwableInit_check) { | |
1328 if (method->name() == vmSymbols::object_initializer_name() && | |
1329 throwable->is_a(method->method_holder())) { | |
1330 continue; | |
1331 } else { | |
1332 // if no "Throwable.init()" method found, we stop checking it next time. | |
1333 skip_throwableInit_check = true; | |
1334 } | |
1335 } | |
1336 bt.push(method, bci, CHECK); | |
1337 total_count++; | |
1338 } | |
1339 | |
1340 // Put completed stack trace into throwable object | |
1341 set_backtrace(throwable(), bt.backtrace()); | |
1342 } | |
1343 | |
1344 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
1345 // No-op if stack trace is disabled | |
1346 if (!StackTraceInThrowable) { | |
1347 return; | |
1348 } | |
1349 | |
1350 // Disable stack traces for some preallocated out of memory errors | |
1351 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1352 return; | |
1353 } | |
1354 | |
1355 PRESERVE_EXCEPTION_MARK; | |
1356 | |
1357 JavaThread* thread = JavaThread::active(); | |
1358 fill_in_stack_trace(throwable, thread); | |
1359 // ignore exceptions thrown during stack trace filling | |
1360 CLEAR_PENDING_EXCEPTION; | |
1361 } | |
1362 | |
1363 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1364 // Allocate stack trace - backtrace is created but not filled in | |
1365 | |
1366 // No-op if stack trace is disabled | |
1367 if (!StackTraceInThrowable) return; | |
1368 | |
1369 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1370 objArrayHandle backtrace (THREAD, h_oop); | |
1371 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1372 objArrayHandle methods (THREAD, m_oop); | |
1373 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1374 typeArrayHandle bcis(THREAD, b); | |
1375 | |
1376 // backtrace has space for one chunk (next is NULL) | |
1377 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1378 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1379 set_backtrace(throwable(), backtrace()); | |
1380 } | |
1381 | |
1382 | |
1383 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1384 // Fill in stack trace into preallocated backtrace (no GC) | |
1385 | |
1386 // No-op if stack trace is disabled | |
1387 if (!StackTraceInThrowable) return; | |
1388 | |
1142 | 1389 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1390 |
1391 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1392 assert(backtrace != NULL, "backtrace not preallocated"); | |
1393 | |
1394 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1395 objArrayOop methods = objArrayOop(m); | |
1396 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1397 | |
1398 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1399 typeArrayOop bcis = typeArrayOop(b); | |
1400 assert(bcis != NULL, "bci array not preallocated"); | |
1401 | |
1402 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1403 | |
1404 JavaThread* thread = JavaThread::current(); | |
1405 ResourceMark rm(thread); | |
1406 vframeStream st(thread); | |
1407 | |
1408 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1409 // methods as preallocated errors aren't created by "java" code. | |
1410 | |
1411 // fill in as much stack trace as possible | |
1412 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1413 int chunk_count = 0; | |
1414 | |
1415 for (;!st.at_end(); st.next()) { | |
1416 // add element | |
1417 bcis->ushort_at_put(chunk_count, st.bci()); | |
1418 methods->obj_at_put(chunk_count, st.method()); | |
1419 | |
1420 chunk_count++; | |
1421 | |
1422 // Bail-out for deep stacks | |
1423 if (chunk_count >= max_chunks) break; | |
1424 } | |
1425 } | |
1426 | |
1427 | |
1428 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1429 if (throwable == NULL) { | |
1430 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1431 } | |
1432 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1433 int depth = 0; | |
1434 if (chunk != NULL) { | |
1435 // Iterate over chunks and count full ones | |
1436 while (true) { | |
1437 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1438 if (next == NULL) break; | |
1439 depth += trace_chunk_size; | |
1440 chunk = next; | |
1441 } | |
1442 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1443 // Count element in remaining partial chunk | |
1444 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1445 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1446 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1447 for (int i = 0; i < methods->length(); i++) { | |
1448 if (methods->obj_at(i) == NULL) break; | |
1449 depth++; | |
1450 } | |
1451 } | |
1452 return depth; | |
1453 } | |
1454 | |
1455 | |
1456 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1457 if (throwable == NULL) { | |
1458 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1459 } | |
1460 if (index < 0) { | |
1461 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1462 } | |
1463 // Compute how many chunks to skip and index into actual chunk | |
1464 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1465 int skip_chunks = index / trace_chunk_size; | |
1466 int chunk_index = index % trace_chunk_size; | |
1467 while (chunk != NULL && skip_chunks > 0) { | |
1468 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1469 skip_chunks--; | |
1470 } | |
1471 if (chunk == NULL) { | |
1472 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1473 } | |
1474 // Get method,bci from chunk | |
1475 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1476 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1477 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1478 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1479 int bci = bcis->ushort_at(chunk_index); | |
1480 // Chunk can be partial full | |
1481 if (method.is_null()) { | |
1482 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1483 } | |
1484 | |
1485 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1486 return element; | |
1487 } | |
1488 | |
1489 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1490 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1491 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1492 | |
1493 // Allocate java.lang.StackTraceElement instance | |
1142 | 1494 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1495 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1496 instanceKlassHandle ik (THREAD, k); |
1497 if (ik->should_be_initialized()) { | |
1498 ik->initialize(CHECK_0); | |
1499 } | |
1500 | |
1501 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1502 // Fill in class name | |
1503 ResourceMark rm(THREAD); | |
1504 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1505 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1506 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1507 // Fill in method name | |
1508 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1509 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1510 // Fill in source file name | |
1511 symbolOop source = instanceKlass::cast(method->method_holder())->source_file_name(); | |
1512 oop filename = StringTable::intern(source, CHECK_0); | |
1513 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1514 // File in source line number | |
1515 int line_number; | |
1516 if (method->is_native()) { | |
1517 // Negative value different from -1 below, enabling Java code in | |
1518 // class java.lang.StackTraceElement to distinguish "native" from | |
1519 // "no LineNumberTable". | |
1520 line_number = -2; | |
1521 } else { | |
1522 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1523 line_number = method->line_number_from_bci(bci); | |
1524 } | |
1525 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1526 | |
1527 return element(); | |
1528 } | |
1529 | |
1530 | |
1531 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1532 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1533 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1534 } |
1535 | |
1536 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1537 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1538 return (jboolean) reflect->bool_field(override_offset); | |
1539 } | |
1540 | |
1541 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1542 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1543 reflect->bool_field_put(override_offset, (int) value); | |
1544 } | |
1545 | |
1546 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1547 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1548 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1549 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1550 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1551 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1552 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1553 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1554 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1555 // The generic signature and annotations fields are only present in 1.5 |
1556 signature_offset = -1; | |
1557 annotations_offset = -1; | |
1558 parameter_annotations_offset = -1; | |
1559 annotation_default_offset = -1; | |
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1560 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1561 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1562 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1563 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1564 } |
1565 | |
1566 Handle java_lang_reflect_Method::create(TRAPS) { | |
1567 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1568 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1569 // This class is eagerly initialized during VM initialization, since we keep a refence |
1570 // to one of the methods | |
1571 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1572 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1573 } | |
1574 | |
1575 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1576 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1577 return reflect->obj_field(clazz_offset); | |
1578 } | |
1579 | |
1580 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1581 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1582 reflect->obj_field_put(clazz_offset, value); | |
1583 } | |
1584 | |
1585 int java_lang_reflect_Method::slot(oop reflect) { | |
1586 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1587 return reflect->int_field(slot_offset); | |
1588 } | |
1589 | |
1590 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1591 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1592 reflect->int_field_put(slot_offset, value); | |
1593 } | |
1594 | |
1595 oop java_lang_reflect_Method::name(oop method) { | |
1596 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1597 return method->obj_field(name_offset); | |
1598 } | |
1599 | |
1600 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1601 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1602 method->obj_field_put(name_offset, value); | |
1603 } | |
1604 | |
1605 oop java_lang_reflect_Method::return_type(oop method) { | |
1606 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1607 return method->obj_field(returnType_offset); | |
1608 } | |
1609 | |
1610 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1611 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1612 method->obj_field_put(returnType_offset, value); | |
1613 } | |
1614 | |
1615 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1616 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1617 return method->obj_field(parameterTypes_offset); | |
1618 } | |
1619 | |
1620 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1621 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1622 method->obj_field_put(parameterTypes_offset, value); | |
1623 } | |
1624 | |
1625 oop java_lang_reflect_Method::exception_types(oop method) { | |
1626 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1627 return method->obj_field(exceptionTypes_offset); | |
1628 } | |
1629 | |
1630 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1631 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1632 method->obj_field_put(exceptionTypes_offset, value); | |
1633 } | |
1634 | |
1635 int java_lang_reflect_Method::modifiers(oop method) { | |
1636 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1637 return method->int_field(modifiers_offset); | |
1638 } | |
1639 | |
1640 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1641 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1642 method->int_field_put(modifiers_offset, value); | |
1643 } | |
1644 | |
1645 bool java_lang_reflect_Method::has_signature_field() { | |
1646 return (signature_offset >= 0); | |
1647 } | |
1648 | |
1649 oop java_lang_reflect_Method::signature(oop method) { | |
1650 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1651 assert(has_signature_field(), "signature field must be present"); | |
1652 return method->obj_field(signature_offset); | |
1653 } | |
1654 | |
1655 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1656 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1657 assert(has_signature_field(), "signature field must be present"); | |
1658 method->obj_field_put(signature_offset, value); | |
1659 } | |
1660 | |
1661 bool java_lang_reflect_Method::has_annotations_field() { | |
1662 return (annotations_offset >= 0); | |
1663 } | |
1664 | |
1665 oop java_lang_reflect_Method::annotations(oop method) { | |
1666 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1667 assert(has_annotations_field(), "annotations field must be present"); | |
1668 return method->obj_field(annotations_offset); | |
1669 } | |
1670 | |
1671 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1672 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1673 assert(has_annotations_field(), "annotations field must be present"); | |
1674 method->obj_field_put(annotations_offset, value); | |
1675 } | |
1676 | |
1677 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1678 return (parameter_annotations_offset >= 0); | |
1679 } | |
1680 | |
1681 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1682 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1683 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1684 return method->obj_field(parameter_annotations_offset); | |
1685 } | |
1686 | |
1687 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1688 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1689 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1690 method->obj_field_put(parameter_annotations_offset, value); | |
1691 } | |
1692 | |
1693 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1694 return (annotation_default_offset >= 0); | |
1695 } | |
1696 | |
1697 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1698 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1699 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1700 return method->obj_field(annotation_default_offset); | |
1701 } | |
1702 | |
1703 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1704 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1705 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1706 method->obj_field_put(annotation_default_offset, value); | |
1707 } | |
1708 | |
1709 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1710 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1711 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1712 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1713 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1714 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1715 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1716 // The generic signature and annotations fields are only present in 1.5 |
1717 signature_offset = -1; | |
1718 annotations_offset = -1; | |
1719 parameter_annotations_offset = -1; | |
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1720 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1721 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1722 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1723 } |
1724 | |
1725 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1726 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1727 symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor(); | |
1728 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
1729 instanceKlassHandle klass (THREAD, k); | |
1730 // Ensure it is initialized | |
1731 klass->initialize(CHECK_NH); | |
1732 return klass->allocate_instance_handle(CHECK_NH); | |
1733 } | |
1734 | |
1735 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1736 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1737 return reflect->obj_field(clazz_offset); | |
1738 } | |
1739 | |
1740 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1741 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1742 reflect->obj_field_put(clazz_offset, value); | |
1743 } | |
1744 | |
1745 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1746 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1747 return constructor->obj_field(parameterTypes_offset); | |
1748 } | |
1749 | |
1750 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1751 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1752 constructor->obj_field_put(parameterTypes_offset, value); | |
1753 } | |
1754 | |
1755 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1756 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1757 return constructor->obj_field(exceptionTypes_offset); | |
1758 } | |
1759 | |
1760 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1761 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1762 constructor->obj_field_put(exceptionTypes_offset, value); | |
1763 } | |
1764 | |
1765 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1766 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1767 return reflect->int_field(slot_offset); | |
1768 } | |
1769 | |
1770 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1771 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1772 reflect->int_field_put(slot_offset, value); | |
1773 } | |
1774 | |
1775 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1776 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1777 return constructor->int_field(modifiers_offset); | |
1778 } | |
1779 | |
1780 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1781 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1782 constructor->int_field_put(modifiers_offset, value); | |
1783 } | |
1784 | |
1785 bool java_lang_reflect_Constructor::has_signature_field() { | |
1786 return (signature_offset >= 0); | |
1787 } | |
1788 | |
1789 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1790 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1791 assert(has_signature_field(), "signature field must be present"); | |
1792 return constructor->obj_field(signature_offset); | |
1793 } | |
1794 | |
1795 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1796 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1797 assert(has_signature_field(), "signature field must be present"); | |
1798 constructor->obj_field_put(signature_offset, value); | |
1799 } | |
1800 | |
1801 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1802 return (annotations_offset >= 0); | |
1803 } | |
1804 | |
1805 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1806 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1807 assert(has_annotations_field(), "annotations field must be present"); | |
1808 return constructor->obj_field(annotations_offset); | |
1809 } | |
1810 | |
1811 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1812 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1813 assert(has_annotations_field(), "annotations field must be present"); | |
1814 constructor->obj_field_put(annotations_offset, value); | |
1815 } | |
1816 | |
1817 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1818 return (parameter_annotations_offset >= 0); | |
1819 } | |
1820 | |
1821 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1822 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1823 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1824 return method->obj_field(parameter_annotations_offset); | |
1825 } | |
1826 | |
1827 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1828 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1829 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1830 method->obj_field_put(parameter_annotations_offset, value); | |
1831 } | |
1832 | |
1833 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 1834 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1835 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1836 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1837 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1838 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1839 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1840 // The generic signature and annotations fields are only present in 1.5 |
1841 signature_offset = -1; | |
1842 annotations_offset = -1; | |
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1843 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1844 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1845 } |
1846 | |
1847 Handle java_lang_reflect_Field::create(TRAPS) { | |
1848 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1849 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field(); | |
1850 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); | |
1851 instanceKlassHandle klass (THREAD, k); | |
1852 // Ensure it is initialized | |
1853 klass->initialize(CHECK_NH); | |
1854 return klass->allocate_instance_handle(CHECK_NH); | |
1855 } | |
1856 | |
1857 oop java_lang_reflect_Field::clazz(oop reflect) { | |
1858 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1859 return reflect->obj_field(clazz_offset); | |
1860 } | |
1861 | |
1862 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
1863 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1864 reflect->obj_field_put(clazz_offset, value); | |
1865 } | |
1866 | |
1867 oop java_lang_reflect_Field::name(oop field) { | |
1868 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1869 return field->obj_field(name_offset); | |
1870 } | |
1871 | |
1872 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
1873 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1874 field->obj_field_put(name_offset, value); | |
1875 } | |
1876 | |
1877 oop java_lang_reflect_Field::type(oop field) { | |
1878 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1879 return field->obj_field(type_offset); | |
1880 } | |
1881 | |
1882 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
1883 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1884 field->obj_field_put(type_offset, value); | |
1885 } | |
1886 | |
1887 int java_lang_reflect_Field::slot(oop reflect) { | |
1888 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1889 return reflect->int_field(slot_offset); | |
1890 } | |
1891 | |
1892 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
1893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1894 reflect->int_field_put(slot_offset, value); | |
1895 } | |
1896 | |
1897 int java_lang_reflect_Field::modifiers(oop field) { | |
1898 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1899 return field->int_field(modifiers_offset); | |
1900 } | |
1901 | |
1902 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1904 field->int_field_put(modifiers_offset, value); | |
1905 } | |
1906 | |
1907 bool java_lang_reflect_Field::has_signature_field() { | |
1908 return (signature_offset >= 0); | |
1909 } | |
1910 | |
1911 oop java_lang_reflect_Field::signature(oop field) { | |
1912 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1913 assert(has_signature_field(), "signature field must be present"); | |
1914 return field->obj_field(signature_offset); | |
1915 } | |
1916 | |
1917 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
1918 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1919 assert(has_signature_field(), "signature field must be present"); | |
1920 field->obj_field_put(signature_offset, value); | |
1921 } | |
1922 | |
1923 bool java_lang_reflect_Field::has_annotations_field() { | |
1924 return (annotations_offset >= 0); | |
1925 } | |
1926 | |
1927 oop java_lang_reflect_Field::annotations(oop field) { | |
1928 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1929 assert(has_annotations_field(), "annotations field must be present"); | |
1930 return field->obj_field(annotations_offset); | |
1931 } | |
1932 | |
1933 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
1934 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1935 assert(has_annotations_field(), "annotations field must be present"); | |
1936 field->obj_field_put(annotations_offset, value); | |
1937 } | |
1938 | |
1939 | |
1940 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 1941 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 1942 // This null test can be removed post beta |
1943 if (k != NULL) { | |
132
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1944 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 1945 } |
1946 } | |
1947 | |
1948 | |
1949 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
1950 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1951 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 1952 instanceKlassHandle klass (THREAD, k); |
1953 // Ensure it is initialized | |
1954 klass->initialize(CHECK_NH); | |
1955 return klass->allocate_instance_handle(CHECK_NH); | |
1956 } | |
1957 | |
1958 | |
1959 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
1960 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1961 return reflect->obj_field(_cp_oop_offset); | |
1962 } | |
1963 | |
1964 | |
1965 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
1966 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1967 reflect->obj_field_put(_cp_oop_offset, value); | |
1968 } | |
1969 | |
1970 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 1971 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 1972 // This null test can be removed post beta |
1973 if (k != NULL) { | |
132
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1974 compute_offset(_base_offset, k, |
0 | 1975 vmSymbols::base_name(), vmSymbols::object_signature()); |
1976 } | |
1977 } | |
1978 | |
132
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1979 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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1980 klassOop k = SystemDictionary::box_klass(type); |
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1981 if (k == NULL) return NULL; |
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1982 instanceKlassHandle h (THREAD, k); |
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1983 if (!h->is_initialized()) h->initialize(CHECK_0); |
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1984 return h->allocate_instance(THREAD); |
0 | 1985 } |
1986 | |
1987 | |
1988 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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1989 oop box = initialize_and_allocate(type, CHECK_0); |
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1990 if (box == NULL) return NULL; |
0 | 1991 switch (type) { |
1992 case T_BOOLEAN: | |
1993 box->bool_field_put(value_offset, value->z); | |
1994 break; | |
1995 case T_CHAR: | |
1996 box->char_field_put(value_offset, value->c); | |
1997 break; | |
1998 case T_FLOAT: | |
1999 box->float_field_put(value_offset, value->f); | |
2000 break; | |
2001 case T_DOUBLE: | |
165
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2002 box->double_field_put(long_value_offset, value->d); |
0 | 2003 break; |
2004 case T_BYTE: | |
2005 box->byte_field_put(value_offset, value->b); | |
2006 break; | |
2007 case T_SHORT: | |
2008 box->short_field_put(value_offset, value->s); | |
2009 break; | |
2010 case T_INT: | |
2011 box->int_field_put(value_offset, value->i); | |
2012 break; | |
2013 case T_LONG: | |
165
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2014 box->long_field_put(long_value_offset, value->j); |
0 | 2015 break; |
2016 default: | |
2017 return NULL; | |
2018 } | |
2019 return box; | |
2020 } | |
2021 | |
2022 | |
132
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2023 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2024 if (box == NULL) return T_ILLEGAL; |
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2025 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2026 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2027 return T_ILLEGAL; |
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2028 return type; |
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2029 } |
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2030 |
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2031 |
0 | 2032 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2033 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2034 switch (type) { |
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2035 case T_BOOLEAN: |
0 | 2036 value->z = box->bool_field(value_offset); |
132
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2037 break; |
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2038 case T_CHAR: |
0 | 2039 value->c = box->char_field(value_offset); |
132
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2040 break; |
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2041 case T_FLOAT: |
0 | 2042 value->f = box->float_field(value_offset); |
132
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2043 break; |
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2044 case T_DOUBLE: |
165
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2045 value->d = box->double_field(long_value_offset); |
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2046 break; |
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2047 case T_BYTE: |
0 | 2048 value->b = box->byte_field(value_offset); |
132
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2049 break; |
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2050 case T_SHORT: |
0 | 2051 value->s = box->short_field(value_offset); |
132
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2052 break; |
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2053 case T_INT: |
0 | 2054 value->i = box->int_field(value_offset); |
132
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2055 break; |
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2056 case T_LONG: |
165
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2057 value->j = box->long_field(long_value_offset); |
132
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2058 break; |
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2059 default: |
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2060 return T_ILLEGAL; |
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2061 } // end switch |
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2062 return type; |
0 | 2063 } |
2064 | |
2065 | |
2066 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2067 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2068 switch (type) { |
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2069 case T_BOOLEAN: |
0 | 2070 box->bool_field_put(value_offset, value->z); |
132
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2071 break; |
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2072 case T_CHAR: |
0 | 2073 box->char_field_put(value_offset, value->c); |
132
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2074 break; |
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2075 case T_FLOAT: |
0 | 2076 box->float_field_put(value_offset, value->f); |
132
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2077 break; |
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2078 case T_DOUBLE: |
165
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2079 box->double_field_put(long_value_offset, value->d); |
132
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2080 break; |
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2081 case T_BYTE: |
0 | 2082 box->byte_field_put(value_offset, value->b); |
132
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2083 break; |
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2084 case T_SHORT: |
0 | 2085 box->short_field_put(value_offset, value->s); |
132
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2086 break; |
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2087 case T_INT: |
0 | 2088 box->int_field_put(value_offset, value->i); |
132
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2089 break; |
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2090 case T_LONG: |
165
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2091 box->long_field_put(long_value_offset, value->j); |
132
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2092 break; |
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2093 default: |
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2094 return T_ILLEGAL; |
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2095 } // end switch |
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2096 return type; |
0 | 2097 } |
2098 | |
2099 | |
665
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2100 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
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2101 switch (type) { |
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2102 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
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2103 case T_CHAR: st->print("%d", value->c); break; |
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2104 case T_BYTE: st->print("%d", value->b); break; |
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2105 case T_SHORT: st->print("%d", value->s); break; |
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2106 case T_INT: st->print("%d", value->i); break; |
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2107 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
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2108 case T_FLOAT: st->print("%f", value->f); break; |
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2109 case T_DOUBLE: st->print("%lf", value->d); break; |
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2110 default: st->print("type %d?", type); break; |
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2111 } |
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2112 } |
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2113 |
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2114 |
0 | 2115 // Support for java_lang_ref_Reference |
113
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2116 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2117 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
113
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2118 char *addr = (((char *)ik->start_of_static_fields()) + static_lock_offset); |
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2119 if (UseCompressedOops) { |
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2120 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2121 } else { |
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2122 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2123 } |
0 | 2124 } |
2125 | |
113
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2126 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2127 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
113
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2128 char *addr = (((char *)ik->start_of_static_fields()) + static_pending_offset); |
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2129 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2130 return (HeapWord*)addr; |
0 | 2131 } |
2132 | |
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2133 oop java_lang_ref_Reference::pending_list() { |
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2134 char *addr = (char *)pending_list_addr(); |
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2135 if (UseCompressedOops) { |
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2136 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2137 } else { |
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2138 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2139 } |
0 | 2140 } |
2141 | |
2142 | |
2143 // Support for java_lang_ref_SoftReference | |
2144 | |
2145 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2146 return ref->long_field(timestamp_offset); | |
2147 } | |
2148 | |
2149 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2150 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
0 | 2151 int offset = ik->offset_of_static_fields() + static_clock_offset; |
2152 | |
1142 | 2153 return SystemDictionary::SoftReference_klass()->long_field(offset); |
0 | 2154 } |
2155 | |
2156 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2157 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
0 | 2158 int offset = ik->offset_of_static_fields() + static_clock_offset; |
2159 | |
1142 | 2160 SystemDictionary::SoftReference_klass()->long_field_put(offset, value); |
0 | 2161 } |
2162 | |
2163 | |
710 | 2164 // Support for java_dyn_MethodHandle |
2165 | |
2166 int java_dyn_MethodHandle::_type_offset; | |
2167 int java_dyn_MethodHandle::_vmtarget_offset; | |
2168 int java_dyn_MethodHandle::_vmentry_offset; | |
2169 int java_dyn_MethodHandle::_vmslots_offset; | |
2170 | |
2171 int sun_dyn_MemberName::_clazz_offset; | |
2172 int sun_dyn_MemberName::_name_offset; | |
2173 int sun_dyn_MemberName::_type_offset; | |
2174 int sun_dyn_MemberName::_flags_offset; | |
2175 int sun_dyn_MemberName::_vmtarget_offset; | |
2176 int sun_dyn_MemberName::_vmindex_offset; | |
2177 | |
2178 int sun_dyn_DirectMethodHandle::_vmindex_offset; | |
2179 | |
2180 int sun_dyn_BoundMethodHandle::_argument_offset; | |
2181 int sun_dyn_BoundMethodHandle::_vmargslot_offset; | |
2182 | |
2183 int sun_dyn_AdapterMethodHandle::_conversion_offset; | |
2184 | |
2185 void java_dyn_MethodHandle::compute_offsets() { | |
2186 klassOop k = SystemDictionary::MethodHandle_klass(); | |
2187 if (k != NULL && EnableMethodHandles) { | |
2188 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
2189 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), true); | |
2190 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), true); | |
2191 | |
2192 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
2193 // It is optional pending experiments to keep or toss. | |
2194 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
2195 } | |
2196 } | |
2197 | |
2198 void sun_dyn_MemberName::compute_offsets() { | |
2199 klassOop k = SystemDictionary::MemberName_klass(); | |
2200 if (k != NULL && EnableMethodHandles) { | |
2201 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2202 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2203 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2204 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2205 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
2206 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2207 } | |
2208 } | |
2209 | |
2210 void sun_dyn_DirectMethodHandle::compute_offsets() { | |
2211 klassOop k = SystemDictionary::DirectMethodHandle_klass(); | |
2212 if (k != NULL && EnableMethodHandles) { | |
2213 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
2214 } | |
2215 } | |
2216 | |
2217 void sun_dyn_BoundMethodHandle::compute_offsets() { | |
2218 klassOop k = SystemDictionary::BoundMethodHandle_klass(); | |
2219 if (k != NULL && EnableMethodHandles) { | |
2220 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
2221 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2222 } | |
2223 } | |
2224 | |
2225 void sun_dyn_AdapterMethodHandle::compute_offsets() { | |
2226 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); | |
2227 if (k != NULL && EnableMethodHandles) { | |
2228 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
2229 } | |
2230 } | |
2231 | |
2232 oop java_dyn_MethodHandle::type(oop mh) { | |
2233 return mh->obj_field(_type_offset); | |
2234 } | |
2235 | |
2236 void java_dyn_MethodHandle::set_type(oop mh, oop mtype) { | |
2237 mh->obj_field_put(_type_offset, mtype); | |
2238 } | |
2239 | |
2240 int java_dyn_MethodHandle::vmslots(oop mh) { | |
2241 int vmslots_offset = _vmslots_offset; | |
2242 if (vmslots_offset != 0) { | |
2243 #ifdef ASSERT | |
2244 int x = mh->int_field(vmslots_offset); | |
2245 int y = compute_vmslots(mh); | |
2246 assert(x == y, "correct hoisted value"); | |
2247 #endif | |
2248 return mh->int_field(vmslots_offset); | |
2249 } else { | |
2250 return compute_vmslots(mh); | |
2251 } | |
2252 } | |
2253 | |
2254 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
2255 void java_dyn_MethodHandle::init_vmslots(oop mh) { | |
2256 int vmslots_offset = _vmslots_offset; | |
2257 if (vmslots_offset != 0) { | |
2258 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
2259 } | |
2260 } | |
2261 | |
2262 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2263 // required to carry the arguments of this MH | |
2264 int java_dyn_MethodHandle::compute_vmslots(oop mh) { | |
2265 oop mtype = type(mh); | |
2266 if (mtype == NULL) return 0; // Java code would get NPE | |
2267 oop form = java_dyn_MethodType::form(mtype); | |
2268 if (form == NULL) return 0; // Java code would get NPE | |
2269 return java_dyn_MethodTypeForm::vmslots(form); | |
2270 } | |
2271 | |
2272 // fetch the low-level entry point for this mh | |
2273 MethodHandleEntry* java_dyn_MethodHandle::vmentry(oop mh) { | |
2274 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); | |
2275 } | |
2276 | |
2277 void java_dyn_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { | |
2278 assert(_vmentry_offset != 0, "must be present"); | |
2279 | |
2280 // This is always the final step that initializes a valid method handle: | |
2281 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2282 | |
2283 // There should be enough memory barriers on exit from native methods | |
2284 // to ensure that the MH is fully initialized to all threads before | |
2285 // Java code can publish it in global data structures. | |
2286 // But just in case, we use release_address_field_put. | |
2287 } | |
2288 | |
2289 /// MemberName accessors | |
2290 | |
2291 oop sun_dyn_MemberName::clazz(oop mname) { | |
2292 assert(is_instance(mname), "wrong type"); | |
2293 return mname->obj_field(_clazz_offset); | |
2294 } | |
2295 | |
2296 void sun_dyn_MemberName::set_clazz(oop mname, oop clazz) { | |
2297 assert(is_instance(mname), "wrong type"); | |
2298 mname->obj_field_put(_clazz_offset, clazz); | |
2299 } | |
2300 | |
2301 oop sun_dyn_MemberName::name(oop mname) { | |
2302 assert(is_instance(mname), "wrong type"); | |
2303 return mname->obj_field(_name_offset); | |
2304 } | |
2305 | |
2306 void sun_dyn_MemberName::set_name(oop mname, oop name) { | |
2307 assert(is_instance(mname), "wrong type"); | |
2308 mname->obj_field_put(_name_offset, name); | |
2309 } | |
2310 | |
2311 oop sun_dyn_MemberName::type(oop mname) { | |
2312 assert(is_instance(mname), "wrong type"); | |
2313 return mname->obj_field(_type_offset); | |
2314 } | |
2315 | |
2316 void sun_dyn_MemberName::set_type(oop mname, oop type) { | |
2317 assert(is_instance(mname), "wrong type"); | |
2318 mname->obj_field_put(_type_offset, type); | |
2319 } | |
2320 | |
2321 int sun_dyn_MemberName::flags(oop mname) { | |
2322 assert(is_instance(mname), "wrong type"); | |
2323 return mname->int_field(_flags_offset); | |
2324 } | |
2325 | |
2326 void sun_dyn_MemberName::set_flags(oop mname, int flags) { | |
2327 assert(is_instance(mname), "wrong type"); | |
2328 mname->int_field_put(_flags_offset, flags); | |
2329 } | |
2330 | |
2331 oop sun_dyn_MemberName::vmtarget(oop mname) { | |
2332 assert(is_instance(mname), "wrong type"); | |
2333 return mname->obj_field(_vmtarget_offset); | |
2334 } | |
2335 | |
2336 void sun_dyn_MemberName::set_vmtarget(oop mname, oop ref) { | |
2337 assert(is_instance(mname), "wrong type"); | |
2338 mname->obj_field_put(_vmtarget_offset, ref); | |
2339 } | |
2340 | |
2341 int sun_dyn_MemberName::vmindex(oop mname) { | |
2342 assert(is_instance(mname), "wrong type"); | |
2343 return mname->int_field(_vmindex_offset); | |
2344 } | |
2345 | |
2346 void sun_dyn_MemberName::set_vmindex(oop mname, int index) { | |
2347 assert(is_instance(mname), "wrong type"); | |
2348 mname->int_field_put(_vmindex_offset, index); | |
2349 } | |
2350 | |
2351 oop java_dyn_MethodHandle::vmtarget(oop mh) { | |
2352 assert(is_instance(mh), "MH only"); | |
2353 return mh->obj_field(_vmtarget_offset); | |
2354 } | |
2355 | |
2356 void java_dyn_MethodHandle::set_vmtarget(oop mh, oop ref) { | |
2357 assert(is_instance(mh), "MH only"); | |
2358 mh->obj_field_put(_vmtarget_offset, ref); | |
2359 } | |
2360 | |
2361 int sun_dyn_DirectMethodHandle::vmindex(oop mh) { | |
2362 assert(is_instance(mh), "DMH only"); | |
2363 return mh->int_field(_vmindex_offset); | |
2364 } | |
2365 | |
2366 void sun_dyn_DirectMethodHandle::set_vmindex(oop mh, int index) { | |
2367 assert(is_instance(mh), "DMH only"); | |
2368 mh->int_field_put(_vmindex_offset, index); | |
2369 } | |
2370 | |
2371 int sun_dyn_BoundMethodHandle::vmargslot(oop mh) { | |
2372 assert(is_instance(mh), "BMH only"); | |
2373 return mh->int_field(_vmargslot_offset); | |
2374 } | |
2375 | |
2376 oop sun_dyn_BoundMethodHandle::argument(oop mh) { | |
2377 assert(is_instance(mh), "BMH only"); | |
2378 return mh->obj_field(_argument_offset); | |
2379 } | |
2380 | |
2381 int sun_dyn_AdapterMethodHandle::conversion(oop mh) { | |
2382 assert(is_instance(mh), "AMH only"); | |
2383 return mh->int_field(_conversion_offset); | |
2384 } | |
2385 | |
2386 void sun_dyn_AdapterMethodHandle::set_conversion(oop mh, int conv) { | |
2387 assert(is_instance(mh), "AMH only"); | |
2388 mh->int_field_put(_conversion_offset, conv); | |
2389 } | |
2390 | |
2391 | |
2392 // Support for java_dyn_MethodType | |
2393 | |
2394 int java_dyn_MethodType::_rtype_offset; | |
2395 int java_dyn_MethodType::_ptypes_offset; | |
2396 int java_dyn_MethodType::_form_offset; | |
2397 | |
2398 void java_dyn_MethodType::compute_offsets() { | |
2399 klassOop k = SystemDictionary::MethodType_klass(); | |
2400 if (k != NULL) { | |
2401 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2402 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2403 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_dyn_MethodTypeForm_signature()); | |
2404 } | |
2405 } | |
2406 | |
2407 void java_dyn_MethodType::print_signature(oop mt, outputStream* st) { | |
2408 st->print("("); | |
2409 objArrayOop pts = ptypes(mt); | |
2410 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2411 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2412 } | |
2413 st->print(")"); | |
2414 java_lang_Class::print_signature(rtype(mt), st); | |
2415 } | |
2416 | |
2417 symbolOop java_dyn_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { | |
2418 ResourceMark rm; | |
2419 stringStream buffer(128); | |
2420 print_signature(mt, &buffer); | |
2421 const char* sigstr = buffer.base(); | |
2422 int siglen = (int) buffer.size(); | |
2423 if (!intern_if_not_found) | |
2424 return SymbolTable::probe(sigstr, siglen); | |
2425 else | |
2426 return oopFactory::new_symbol(sigstr, siglen, THREAD); | |
2427 } | |
2428 | |
2429 oop java_dyn_MethodType::rtype(oop mt) { | |
2430 assert(is_instance(mt), "must be a MethodType"); | |
2431 return mt->obj_field(_rtype_offset); | |
2432 } | |
2433 | |
2434 objArrayOop java_dyn_MethodType::ptypes(oop mt) { | |
2435 assert(is_instance(mt), "must be a MethodType"); | |
2436 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2437 } | |
2438 | |
2439 oop java_dyn_MethodType::form(oop mt) { | |
2440 assert(is_instance(mt), "must be a MethodType"); | |
2441 return mt->obj_field(_form_offset); | |
2442 } | |
2443 | |
2444 oop java_dyn_MethodType::ptype(oop mt, int idx) { | |
2445 return ptypes(mt)->obj_at(idx); | |
2446 } | |
2447 | |
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2448 int java_dyn_MethodType::ptype_count(oop mt) { |
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2449 return ptypes(mt)->length(); |
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2450 } |
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2451 |
710 | 2452 |
2453 | |
2454 // Support for java_dyn_MethodTypeForm | |
2455 | |
2456 int java_dyn_MethodTypeForm::_vmslots_offset; | |
2457 int java_dyn_MethodTypeForm::_erasedType_offset; | |
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2458 int java_dyn_MethodTypeForm::_genericInvoker_offset; |
710 | 2459 |
2460 void java_dyn_MethodTypeForm::compute_offsets() { | |
2461 klassOop k = SystemDictionary::MethodTypeForm_klass(); | |
2462 if (k != NULL) { | |
2463 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
2464 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_dyn_MethodType_signature(), true); | |
1793
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2465 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_dyn_MethodHandle_signature(), true); |
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2466 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
710 | 2467 } |
2468 } | |
2469 | |
2470 int java_dyn_MethodTypeForm::vmslots(oop mtform) { | |
2471 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
2472 return mtform->int_field(_vmslots_offset); | |
2473 } | |
2474 | |
2475 oop java_dyn_MethodTypeForm::erasedType(oop mtform) { | |
2476 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); | |
2477 return mtform->obj_field(_erasedType_offset); | |
2478 } | |
2479 | |
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2480 oop java_dyn_MethodTypeForm::genericInvoker(oop mtform) { |
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2481 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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2482 return mtform->obj_field(_genericInvoker_offset); |
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2483 } |
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2484 |
710 | 2485 |
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2486 // Support for java_dyn_CallSite |
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2487 |
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2488 int java_dyn_CallSite::_target_offset; |
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2489 int java_dyn_CallSite::_caller_method_offset; |
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2490 int java_dyn_CallSite::_caller_bci_offset; |
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2491 |
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2492 void java_dyn_CallSite::compute_offsets() { |
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2493 if (!EnableInvokeDynamic) return; |
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2494 klassOop k = SystemDictionary::CallSite_klass(); |
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2495 if (k != NULL) { |
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2496 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_dyn_MethodHandle_signature()); |
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2497 compute_offset(_caller_method_offset, k, vmSymbols::vmmethod_name(), vmSymbols::sun_dyn_MemberName_signature()); |
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2498 compute_offset(_caller_bci_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); |
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2499 } |
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2500 } |
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2501 |
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2502 oop java_dyn_CallSite::target(oop site) { |
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2503 return site->obj_field(_target_offset); |
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2504 } |
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2505 |
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2506 void java_dyn_CallSite::set_target(oop site, oop target) { |
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2507 site->obj_field_put(_target_offset, target); |
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2508 } |
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2509 |
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2510 oop java_dyn_CallSite::caller_method(oop site) { |
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2511 return site->obj_field(_caller_method_offset); |
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2512 } |
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2513 |
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2514 void java_dyn_CallSite::set_caller_method(oop site, oop ref) { |
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2515 site->obj_field_put(_caller_method_offset, ref); |
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2516 } |
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2517 |
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2518 jint java_dyn_CallSite::caller_bci(oop site) { |
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2519 return site->int_field(_caller_bci_offset); |
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2520 } |
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2521 |
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2522 void java_dyn_CallSite::set_caller_bci(oop site, jint bci) { |
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2523 site->int_field_put(_caller_bci_offset, bci); |
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2524 } |
710 | 2525 |
2526 | |
0 | 2527 // Support for java_security_AccessControlContext |
2528 | |
2529 int java_security_AccessControlContext::_context_offset = 0; | |
2530 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2531 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2532 | |
2533 void java_security_AccessControlContext::compute_offsets() { | |
2534 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2535 fieldDescriptor fd; | |
2536 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2537 | |
2538 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2539 fatal("Invalid layout of java.security.AccessControlContext"); | |
2540 } | |
2541 _context_offset = fd.offset(); | |
2542 | |
2543 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2544 fatal("Invalid layout of java.security.AccessControlContext"); | |
2545 } | |
2546 _privilegedContext_offset = fd.offset(); | |
2547 | |
2548 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2549 fatal("Invalid layout of java.security.AccessControlContext"); | |
2550 } | |
2551 _isPrivileged_offset = fd.offset(); | |
2552 } | |
2553 | |
2554 | |
2555 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2556 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2557 // Ensure klass is initialized | |
2558 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2559 // Allocate result | |
2560 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2561 // Fill in values | |
2562 result->obj_field_put(_context_offset, context()); | |
2563 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2564 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2565 return result; | |
2566 } | |
2567 | |
2568 | |
2569 // Support for java_lang_ClassLoader | |
2570 | |
2571 oop java_lang_ClassLoader::parent(oop loader) { | |
2572 assert(loader->is_oop(), "loader must be oop"); | |
2573 return loader->obj_field(parent_offset); | |
2574 } | |
2575 | |
2576 | |
2577 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
2578 // Fix for 4474172; see evaluation for more details | |
2579 loader = non_reflection_class_loader(loader); | |
2580 | |
2581 oop cl = SystemDictionary::java_system_loader(); | |
2582 while(cl != NULL) { | |
2583 if (cl == loader) return true; | |
2584 cl = parent(cl); | |
2585 } | |
2586 return false; | |
2587 } | |
2588 | |
2589 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2590 if (loader != NULL) { | |
2591 // See whether this is one of the class loaders associated with | |
2592 // the generated bytecodes for reflection, and if so, "magically" | |
2593 // delegate to its parent to prevent class loading from occurring | |
2594 // in places where applications using reflection didn't expect it. | |
1142 | 2595 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2596 // This might be null in non-1.4 JDKs |
2597 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2598 return parent(loader); | |
2599 } | |
2600 } | |
2601 return loader; | |
2602 } | |
2603 | |
2604 | |
2605 // Support for java_lang_System | |
2606 | |
2607 void java_lang_System::compute_offsets() { | |
2608 assert(offset_of_static_fields == 0, "offsets should be initialized only once"); | |
2609 | |
1142 | 2610 instanceKlass* ik = instanceKlass::cast(SystemDictionary::System_klass()); |
0 | 2611 offset_of_static_fields = ik->offset_of_static_fields(); |
2612 } | |
2613 | |
2614 int java_lang_System::in_offset_in_bytes() { | |
2615 return (offset_of_static_fields + static_in_offset); | |
2616 } | |
2617 | |
2618 | |
2619 int java_lang_System::out_offset_in_bytes() { | |
2620 return (offset_of_static_fields + static_out_offset); | |
2621 } | |
2622 | |
2623 | |
2624 int java_lang_System::err_offset_in_bytes() { | |
2625 return (offset_of_static_fields + static_err_offset); | |
2626 } | |
2627 | |
2628 | |
2629 | |
2630 int java_lang_String::value_offset; | |
2631 int java_lang_String::offset_offset; | |
2632 int java_lang_String::count_offset; | |
2633 int java_lang_String::hash_offset; | |
2634 int java_lang_Class::klass_offset; | |
2635 int java_lang_Class::array_klass_offset; | |
2636 int java_lang_Class::resolved_constructor_offset; | |
2637 int java_lang_Class::number_of_fake_oop_fields; | |
2638 int java_lang_Throwable::backtrace_offset; | |
2639 int java_lang_Throwable::detailMessage_offset; | |
2640 int java_lang_Throwable::cause_offset; | |
2641 int java_lang_Throwable::stackTrace_offset; | |
2642 int java_lang_reflect_AccessibleObject::override_offset; | |
2643 int java_lang_reflect_Method::clazz_offset; | |
2644 int java_lang_reflect_Method::name_offset; | |
2645 int java_lang_reflect_Method::returnType_offset; | |
2646 int java_lang_reflect_Method::parameterTypes_offset; | |
2647 int java_lang_reflect_Method::exceptionTypes_offset; | |
2648 int java_lang_reflect_Method::slot_offset; | |
2649 int java_lang_reflect_Method::modifiers_offset; | |
2650 int java_lang_reflect_Method::signature_offset; | |
2651 int java_lang_reflect_Method::annotations_offset; | |
2652 int java_lang_reflect_Method::parameter_annotations_offset; | |
2653 int java_lang_reflect_Method::annotation_default_offset; | |
2654 int java_lang_reflect_Constructor::clazz_offset; | |
2655 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2656 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2657 int java_lang_reflect_Constructor::slot_offset; | |
2658 int java_lang_reflect_Constructor::modifiers_offset; | |
2659 int java_lang_reflect_Constructor::signature_offset; | |
2660 int java_lang_reflect_Constructor::annotations_offset; | |
2661 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2662 int java_lang_reflect_Field::clazz_offset; | |
2663 int java_lang_reflect_Field::name_offset; | |
2664 int java_lang_reflect_Field::type_offset; | |
2665 int java_lang_reflect_Field::slot_offset; | |
2666 int java_lang_reflect_Field::modifiers_offset; | |
2667 int java_lang_reflect_Field::signature_offset; | |
2668 int java_lang_reflect_Field::annotations_offset; | |
2669 int java_lang_boxing_object::value_offset; | |
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2670 int java_lang_boxing_object::long_value_offset; |
0 | 2671 int java_lang_ref_Reference::referent_offset; |
2672 int java_lang_ref_Reference::queue_offset; | |
2673 int java_lang_ref_Reference::next_offset; | |
2674 int java_lang_ref_Reference::discovered_offset; | |
2675 int java_lang_ref_Reference::static_lock_offset; | |
2676 int java_lang_ref_Reference::static_pending_offset; | |
2677 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2678 int java_lang_ref_SoftReference::timestamp_offset; | |
2679 int java_lang_ref_SoftReference::static_clock_offset; | |
2680 int java_lang_ClassLoader::parent_offset; | |
2681 int java_lang_System::offset_of_static_fields; | |
2682 int java_lang_System::static_in_offset; | |
2683 int java_lang_System::static_out_offset; | |
2684 int java_lang_System::static_err_offset; | |
2685 int java_lang_StackTraceElement::declaringClass_offset; | |
2686 int java_lang_StackTraceElement::methodName_offset; | |
2687 int java_lang_StackTraceElement::fileName_offset; | |
2688 int java_lang_StackTraceElement::lineNumber_offset; | |
2689 int java_lang_AssertionStatusDirectives::classes_offset; | |
2690 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2691 int java_lang_AssertionStatusDirectives::packages_offset; | |
2692 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2693 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2694 int java_nio_Buffer::_limit_offset; | |
2695 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2696 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2697 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2698 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2699 | |
2700 | |
2701 // Support for java_lang_StackTraceElement | |
2702 | |
2703 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2704 element->obj_field_put(fileName_offset, value); | |
2705 } | |
2706 | |
2707 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2708 element->obj_field_put(declaringClass_offset, value); | |
2709 } | |
2710 | |
2711 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2712 element->obj_field_put(methodName_offset, value); | |
2713 } | |
2714 | |
2715 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2716 element->int_field_put(lineNumber_offset, value); | |
2717 } | |
2718 | |
2719 | |
2720 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2721 | |
2722 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2723 o->obj_field_put(classes_offset, val); | |
2724 } | |
2725 | |
2726 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2727 o->obj_field_put(classEnabled_offset, val); | |
2728 } | |
2729 | |
2730 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2731 o->obj_field_put(packages_offset, val); | |
2732 } | |
2733 | |
2734 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2735 o->obj_field_put(packageEnabled_offset, val); | |
2736 } | |
2737 | |
2738 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2739 o->bool_field_put(deflt_offset, val); | |
2740 } | |
2741 | |
2742 | |
2743 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2744 int java_nio_Buffer::limit_offset() { | |
2745 return _limit_offset; | |
2746 } | |
2747 | |
2748 | |
2749 void java_nio_Buffer::compute_offsets() { | |
2750 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
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2751 assert(k != NULL, "must be loaded in 1.4+"); |
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2752 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2753 } |
2754 | |
2755 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2756 int sun_misc_AtomicLongCSImpl::value_offset() { | |
2757 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
2758 return _value_offset; | |
2759 } | |
2760 | |
2761 | |
2762 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
2763 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
2764 // If this class is not present, its value field offset won't be referenced. | |
2765 if (k != NULL) { | |
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2766 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2767 } |
2768 } | |
2769 | |
2770 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2771 if (_owner_offset != 0) return; | |
2772 | |
2773 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2774 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2775 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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2776 compute_offset(_owner_offset, k, |
0 | 2777 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2778 } | |
2779 | |
2780 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2781 assert(_owner_offset != 0, "Must be initialized"); | |
2782 return obj->obj_field(_owner_offset); | |
2783 } | |
2784 | |
2785 // Compute hard-coded offsets | |
2786 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2787 // are not available to determine the offset_of_static_fields. | |
2788 void JavaClasses::compute_hard_coded_offsets() { | |
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2789 const int x = heapOopSize; |
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2790 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2791 |
2792 // Do the String Class | |
2793 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2794 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2795 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2796 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2797 | |
2798 // Do the Class Class | |
2799 java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header; | |
2800 java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header; | |
2801 java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header; | |
2802 | |
2803 // This is NOT an offset | |
2804 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
2805 | |
2806 // Throwable Class | |
2807 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2808 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2809 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2810 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
2811 | |
2812 // java_lang_boxing_object | |
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2813 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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2814 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 2815 |
2816 // java_lang_ref_Reference: | |
2817 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
2818 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
2819 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
2820 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
2821 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
2822 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
2823 // Artificial fields for java_lang_ref_Reference | |
2824 // The first field is for the discovered field added in 1.4 | |
2825 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
2826 | |
2827 // java_lang_ref_SoftReference Class | |
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2828 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 2829 // Don't multiply static fields because they are always in wordSize units |
2830 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
2831 | |
2832 // java_lang_ClassLoader | |
2833 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
2834 | |
2835 // java_lang_System | |
2836 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
2837 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
2838 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
2839 | |
2840 // java_lang_StackTraceElement | |
2841 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
2842 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
2843 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
2844 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
2845 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
2846 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
2847 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
2848 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
2849 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
2850 | |
2851 } | |
2852 | |
2853 | |
2854 // Compute non-hard-coded field offsets of all the classes in this file | |
2855 void JavaClasses::compute_offsets() { | |
2856 | |
2857 java_lang_Class::compute_offsets(); | |
2858 java_lang_System::compute_offsets(); | |
2859 java_lang_Thread::compute_offsets(); | |
2860 java_lang_ThreadGroup::compute_offsets(); | |
710 | 2861 if (EnableMethodHandles) { |
2862 java_dyn_MethodHandle::compute_offsets(); | |
2863 sun_dyn_MemberName::compute_offsets(); | |
2864 sun_dyn_DirectMethodHandle::compute_offsets(); | |
2865 sun_dyn_BoundMethodHandle::compute_offsets(); | |
2866 sun_dyn_AdapterMethodHandle::compute_offsets(); | |
2867 java_dyn_MethodType::compute_offsets(); | |
2868 java_dyn_MethodTypeForm::compute_offsets(); | |
2869 } | |
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2870 if (EnableInvokeDynamic) { |
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2871 java_dyn_CallSite::compute_offsets(); |
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2872 } |
0 | 2873 java_security_AccessControlContext::compute_offsets(); |
2874 // Initialize reflection classes. The layouts of these classes | |
2875 // changed with the new reflection implementation in JDK 1.4, and | |
2876 // since the Universe doesn't know what JDK version it is until this | |
2877 // point we defer computation of these offsets until now. | |
2878 java_lang_reflect_AccessibleObject::compute_offsets(); | |
2879 java_lang_reflect_Method::compute_offsets(); | |
2880 java_lang_reflect_Constructor::compute_offsets(); | |
2881 java_lang_reflect_Field::compute_offsets(); | |
2882 if (JDK_Version::is_gte_jdk14x_version()) { | |
2883 java_nio_Buffer::compute_offsets(); | |
2884 } | |
2885 if (JDK_Version::is_gte_jdk15x_version()) { | |
2886 sun_reflect_ConstantPool::compute_offsets(); | |
2887 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
2888 } | |
2889 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 2890 |
2891 // generated interpreter code wants to know about the offsets we just computed: | |
2892 AbstractAssembler::update_delayed_values(); | |
0 | 2893 } |
2894 | |
2895 #ifndef PRODUCT | |
2896 | |
2897 // These functions exist to assert the validity of hard-coded field offsets to guard | |
2898 // against changes in the class files | |
2899 | |
2900 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
2901 EXCEPTION_MARK; | |
2902 fieldDescriptor fd; | |
2903 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
2904 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
2905 instanceKlassHandle h_klass (THREAD, k); | |
2906 //instanceKlassHandle h_klass(klass); | |
2907 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
2908 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
2909 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
2910 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); | |
2911 return false; | |
2912 } | |
2913 if (fd.is_static()) { | |
2914 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
2915 return false; | |
2916 } | |
2917 if (fd.offset() == hardcoded_offset ) { | |
2918 return true; | |
2919 } else { | |
2920 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
2921 klass_name, field_name, hardcoded_offset, fd.offset()); | |
2922 return false; | |
2923 } | |
2924 } | |
2925 | |
2926 | |
2927 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
2928 EXCEPTION_MARK; | |
2929 fieldDescriptor fd; | |
2930 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); | |
2931 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); | |
2932 instanceKlassHandle h_klass (THREAD, k); | |
2933 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); | |
2934 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); | |
2935 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { | |
2936 tty->print_cr("Static field %s.%s not found", klass_name, field_name); | |
2937 return false; | |
2938 } | |
2939 if (!fd.is_static()) { | |
2940 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
2941 return false; | |
2942 } | |
2943 if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) { | |
2944 return true; | |
2945 } else { | |
2946 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()); | |
2947 return false; | |
2948 } | |
2949 } | |
2950 | |
2951 | |
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2952 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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2953 EXCEPTION_MARK; |
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2954 fieldDescriptor fd; |
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2955 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH); |
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2956 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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2957 instanceKlassHandle h_klass (THREAD, k); |
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2958 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH); |
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2959 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH); |
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2960 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) { |
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2961 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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2962 return false; |
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2963 } |
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2964 if (!fd.is_static() || !fd.has_initial_value()) { |
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2965 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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2966 return false; |
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2967 } |
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2968 if (!fd.initial_value_tag().is_int()) { |
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2969 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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2970 return false; |
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2971 } |
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2972 jint field_value = fd.int_initial_value(); |
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2973 if (field_value == hardcoded_constant) { |
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2974 return true; |
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2975 } else { |
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2976 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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2977 return false; |
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2978 } |
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2979 } |
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2980 |
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2981 |
0 | 2982 // Check the hard-coded field offsets of all the classes in this file |
2983 | |
2984 void JavaClasses::check_offsets() { | |
2985 bool valid = true; | |
2986 | |
2987 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
2988 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
2989 | |
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2990 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2991 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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2992 |
0 | 2993 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
2994 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
2995 | |
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2996 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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2997 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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2998 |
0 | 2999 // java.lang.String |
3000 | |
3001 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3002 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3003 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3004 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3005 | |
3006 // java.lang.Class | |
3007 | |
3008 // Fake fields | |
3009 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3010 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3011 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3012 | |
3013 // java.lang.Throwable | |
3014 | |
3015 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3016 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3017 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3018 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3019 | |
3020 // Boxed primitive objects (java_lang_boxing_object) | |
3021 | |
3022 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3023 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3024 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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3025 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3026 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3027 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3028 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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3029 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3030 |
3031 // java.lang.ClassLoader | |
3032 | |
3033 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3034 | |
3035 // java.lang.System | |
3036 | |
3037 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3038 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3039 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3040 | |
3041 // java.lang.StackTraceElement | |
3042 | |
3043 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3044 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3045 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3046 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3047 | |
3048 // java.lang.ref.Reference | |
3049 | |
3050 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3051 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3052 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3053 // Fake field | |
3054 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3055 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3056 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3057 | |
3058 // java.lang.ref.SoftReference | |
3059 | |
3060 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3061 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3062 | |
3063 // java.lang.AssertionStatusDirectives | |
3064 // | |
3065 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3066 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3067 // into merlin "for some time." Without it, the vm will fail with early | |
3068 // merlin builds. | |
3069 | |
3070 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3071 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3072 const char* sig = "[Ljava/lang/String;"; | |
3073 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3074 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3075 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3076 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3077 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3078 } | |
3079 | |
3080 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3081 } | |
3082 | |
3083 #endif // PRODUCT | |
3084 | |
3085 void javaClasses_init() { | |
3086 JavaClasses::compute_offsets(); | |
3087 JavaClasses::check_offsets(); | |
3088 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3089 } |