Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 3229:4a6bda6cfe28
Fix for usages that are phi in rematerialization
author | Gilles Duboscq <gilles.duboscq@oracle.com> |
---|---|
date | Thu, 21 Jul 2011 11:32:22 +0200 |
parents | 3449f5e02cc4 |
children | 01147d8aac1d |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "code/debugInfo.hpp" | |
30 #include "code/pcDesc.hpp" | |
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" | |
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36 #include "oops/instanceMirrorKlass.hpp" |
1972 | 37 #include "oops/klass.hpp" |
38 #include "oops/klassOop.hpp" | |
39 #include "oops/methodOop.hpp" | |
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40 #include "oops/symbol.hpp" |
1972 | 41 #include "oops/typeArrayOop.hpp" |
42 #include "runtime/fieldDescriptor.hpp" | |
43 #include "runtime/handles.inline.hpp" | |
44 #include "runtime/interfaceSupport.hpp" | |
45 #include "runtime/java.hpp" | |
46 #include "runtime/javaCalls.hpp" | |
47 #include "runtime/safepoint.hpp" | |
48 #include "runtime/vframe.hpp" | |
49 #include "utilities/preserveException.hpp" | |
50 #ifdef TARGET_OS_FAMILY_linux | |
51 # include "thread_linux.inline.hpp" | |
52 #endif | |
53 #ifdef TARGET_OS_FAMILY_solaris | |
54 # include "thread_solaris.inline.hpp" | |
55 #endif | |
56 #ifdef TARGET_OS_FAMILY_windows | |
57 # include "thread_windows.inline.hpp" | |
58 #endif | |
0 | 59 |
710 | 60 static bool find_field(instanceKlass* ik, |
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61 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 62 fieldDescriptor* fd, |
63 bool allow_super = false) { | |
64 if (allow_super) | |
65 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
66 else | |
67 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
68 } | |
69 | |
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70 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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71 static void |
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72 compute_offset(int &dest_offset, |
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73 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 74 bool allow_super = false) { |
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75 fieldDescriptor fd; |
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76 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 77 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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78 ResourceMark rm; |
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79 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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80 fatal("Invalid layout of preloaded class"); |
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81 } |
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82 dest_offset = fd.offset(); |
0 | 83 } |
84 | |
85 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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86 static void |
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87 compute_optional_offset(int& dest_offset, |
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88 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 89 bool allow_super = false) { |
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90 fieldDescriptor fd; |
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91 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 92 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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93 dest_offset = fd.offset(); |
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94 } |
0 | 95 } |
96 | |
710 | 97 |
0 | 98 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
99 // Create the String object first, so there's a chance that the String | |
100 // and the char array it points to end up in the same cache line. | |
101 oop obj; | |
102 if (tenured) { | |
1142 | 103 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 104 } else { |
1142 | 105 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 106 } |
107 | |
108 // Create the char array. The String object must be handlized here | |
109 // because GC can happen as a result of the allocation attempt. | |
110 Handle h_obj(THREAD, obj); | |
111 typeArrayOop buffer; | |
112 if (tenured) { | |
113 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
114 } else { | |
115 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
116 } | |
117 | |
118 // Point the String at the char array | |
119 obj = h_obj(); | |
120 set_value(obj, buffer); | |
121 // No need to zero the offset, allocation zero'ed the entire String object | |
122 assert(offset(obj) == 0, "initial String offset should be zero"); | |
123 //set_offset(obj, 0); | |
124 set_count(obj, length); | |
125 | |
126 return h_obj; | |
127 } | |
128 | |
129 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
130 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
131 typeArrayOop buffer = value(h_obj()); | |
132 for (int index = 0; index < length; index++) { | |
133 buffer->char_at_put(index, unicode[index]); | |
134 } | |
135 return h_obj; | |
136 } | |
137 | |
138 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
139 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
140 } | |
141 | |
142 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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143 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
0 | 144 } |
145 | |
146 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
147 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
148 return h_obj(); | |
149 } | |
150 | |
151 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
152 if (utf8_str == NULL) { | |
153 return Handle(); | |
154 } | |
155 int length = UTF8::unicode_length(utf8_str); | |
156 Handle h_obj = basic_create(length, false, CHECK_NH); | |
157 if (length > 0) { | |
158 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
159 } | |
160 return h_obj; | |
161 } | |
162 | |
163 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
164 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
165 return h_obj(); | |
166 } | |
167 | |
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168 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 169 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
170 Handle h_obj = basic_create(length, false, CHECK_NH); | |
171 if (length > 0) { | |
172 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
173 } | |
174 return h_obj; | |
175 } | |
176 | |
177 // Converts a C string to a Java String based on current encoding | |
178 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
179 assert(str != NULL, "bad arguments"); | |
180 | |
181 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
182 static to_java_string_fn_t _to_java_string_fn = NULL; | |
183 | |
184 if (_to_java_string_fn == NULL) { | |
185 void *lib_handle = os::native_java_library(); | |
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186 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 187 if (_to_java_string_fn == NULL) { |
188 fatal("NewStringPlatform missing"); | |
189 } | |
190 } | |
191 | |
192 jstring js = NULL; | |
193 { JavaThread* thread = (JavaThread*)THREAD; | |
194 assert(thread->is_Java_thread(), "must be java thread"); | |
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195 HandleMark hm(thread); |
0 | 196 ThreadToNativeFromVM ttn(thread); |
197 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
198 } | |
199 return Handle(THREAD, JNIHandles::resolve(js)); | |
200 } | |
201 | |
22
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202 // Converts a Java String to a native C string that can be used for |
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203 // native OS calls. |
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204 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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205 |
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206 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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207 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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208 |
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209 if (_to_platform_string_fn == NULL) { |
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210 void *lib_handle = os::native_java_library(); |
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211 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
22
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212 if (_to_platform_string_fn == NULL) { |
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213 fatal("GetStringPlatformChars missing"); |
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214 } |
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215 } |
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216 |
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217 char *native_platform_string; |
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218 { JavaThread* thread = (JavaThread*)THREAD; |
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219 assert(thread->is_Java_thread(), "must be java thread"); |
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220 JNIEnv *env = thread->jni_environment(); |
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221 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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222 bool is_copy; |
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223 HandleMark hm(thread); |
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224 ThreadToNativeFromVM ttn(thread); |
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225 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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226 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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227 JNIHandles::destroy_local(js); |
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228 } |
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229 return native_platform_string; |
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230 } |
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231 |
0 | 232 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
233 oop obj = java_string(); | |
234 // Typical usage is to convert all '/' to '.' in string. | |
235 typeArrayOop value = java_lang_String::value(obj); | |
236 int offset = java_lang_String::offset(obj); | |
237 int length = java_lang_String::length(obj); | |
238 | |
239 // First check if any from_char exist | |
240 int index; // Declared outside, used later | |
241 for (index = 0; index < length; index++) { | |
242 if (value->char_at(index + offset) == from_char) { | |
243 break; | |
244 } | |
245 } | |
246 if (index == length) { | |
247 // No from_char, so do not copy. | |
248 return java_string; | |
249 } | |
250 | |
251 // Create new UNICODE buffer. Must handlize value because GC | |
252 // may happen during String and char array creation. | |
253 typeArrayHandle h_value(THREAD, value); | |
254 Handle string = basic_create(length, false, CHECK_NH); | |
255 | |
256 typeArrayOop from_buffer = h_value(); | |
257 typeArrayOop to_buffer = java_lang_String::value(string()); | |
258 | |
259 // Copy contents | |
260 for (index = 0; index < length; index++) { | |
261 jchar c = from_buffer->char_at(index + offset); | |
262 if (c == from_char) { | |
263 c = to_char; | |
264 } | |
265 to_buffer->char_at_put(index, c); | |
266 } | |
267 return string; | |
268 } | |
269 | |
270 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
271 typeArrayOop value = java_lang_String::value(java_string); | |
272 int offset = java_lang_String::offset(java_string); | |
273 length = java_lang_String::length(java_string); | |
274 | |
275 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
276 for (int index = 0; index < length; index++) { | |
277 result[index] = value->char_at(index + offset); | |
278 } | |
279 return result; | |
280 } | |
281 | |
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282 unsigned int java_lang_String::hash_string(oop java_string) { |
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283 typeArrayOop value = java_lang_String::value(java_string); |
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284 int offset = java_lang_String::offset(java_string); |
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285 int length = java_lang_String::length(java_string); |
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286 |
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287 if (length == 0) return 0; |
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288 return hash_string(value->char_at_addr(offset), length); |
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289 } |
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290 |
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291 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 292 oop obj = java_string(); |
293 typeArrayOop value = java_lang_String::value(obj); | |
294 int offset = java_lang_String::offset(obj); | |
295 int length = java_lang_String::length(obj); | |
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296 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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297 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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298 return sym; |
0 | 299 } |
300 | |
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301 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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302 typeArrayOop value = java_lang_String::value(java_string); |
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303 int offset = java_lang_String::offset(java_string); |
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304 int length = java_lang_String::length(java_string); |
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305 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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306 return SymbolTable::probe_unicode(base, length); |
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307 } |
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308 |
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309 |
0 | 310 int java_lang_String::utf8_length(oop java_string) { |
311 typeArrayOop value = java_lang_String::value(java_string); | |
312 int offset = java_lang_String::offset(java_string); | |
313 int length = java_lang_String::length(java_string); | |
314 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
315 return UNICODE::utf8_length(position, length); | |
316 } | |
317 | |
318 char* java_lang_String::as_utf8_string(oop java_string) { | |
319 typeArrayOop value = java_lang_String::value(java_string); | |
320 int offset = java_lang_String::offset(java_string); | |
321 int length = java_lang_String::length(java_string); | |
322 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
323 return UNICODE::as_utf8(position, length); | |
324 } | |
325 | |
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326 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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327 typeArrayOop value = java_lang_String::value(java_string); |
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328 int offset = java_lang_String::offset(java_string); |
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329 int length = java_lang_String::length(java_string); |
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330 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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331 return UNICODE::as_utf8(position, length, buf, buflen); |
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332 } |
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333 |
0 | 334 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
335 typeArrayOop value = java_lang_String::value(java_string); | |
336 int offset = java_lang_String::offset(java_string); | |
337 int length = java_lang_String::length(java_string); | |
338 assert(start + len <= length, "just checking"); | |
339 jchar* position = value->char_at_addr(offset + start); | |
340 return UNICODE::as_utf8(position, len); | |
341 } | |
342 | |
343 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
344 assert(SharedSkipVerify || | |
1142 | 345 java_string->klass() == SystemDictionary::String_klass(), |
0 | 346 "must be java_string"); |
347 typeArrayOop value = java_lang_String::value(java_string); | |
348 int offset = java_lang_String::offset(java_string); | |
349 int length = java_lang_String::length(java_string); | |
350 if (length != len) { | |
351 return false; | |
352 } | |
353 for (int i = 0; i < len; i++) { | |
354 if (value->char_at(i + offset) != chars[i]) { | |
355 return false; | |
356 } | |
357 } | |
358 return true; | |
359 } | |
360 | |
361 void java_lang_String::print(Handle java_string, outputStream* st) { | |
362 oop obj = java_string(); | |
1142 | 363 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 364 typeArrayOop value = java_lang_String::value(obj); |
365 int offset = java_lang_String::offset(obj); | |
366 int length = java_lang_String::length(obj); | |
367 | |
368 int end = MIN2(length, 100); | |
369 if (value == NULL) { | |
370 // This can happen if, e.g., printing a String | |
371 // object before its initializer has been called | |
372 st->print_cr("NULL"); | |
373 } else { | |
374 st->print("\""); | |
375 for (int index = 0; index < length; index++) { | |
376 st->print("%c", value->char_at(index + offset)); | |
377 } | |
378 st->print("\""); | |
379 } | |
380 } | |
381 | |
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382 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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383 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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384 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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385 if (fd->has_initial_value()) { |
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386 BasicType t = fd->field_type(); |
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387 switch (t) { |
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388 case T_BYTE: |
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389 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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390 break; |
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391 case T_BOOLEAN: |
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392 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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393 break; |
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394 case T_CHAR: |
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395 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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396 break; |
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397 case T_SHORT: |
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398 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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399 break; |
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400 case T_INT: |
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401 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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402 break; |
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403 case T_FLOAT: |
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404 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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405 break; |
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406 case T_DOUBLE: |
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407 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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408 break; |
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409 case T_LONG: |
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410 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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411 break; |
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412 case T_OBJECT: |
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413 { |
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414 #ifdef ASSERT |
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415 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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416 assert(fd->signature() == sym, "just checking"); |
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417 #endif |
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418 oop string = fd->string_initial_value(CHECK); |
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419 mirror()->obj_field_put(fd->offset(), string); |
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420 } |
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421 break; |
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422 default: |
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423 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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424 "Illegal ConstantValue attribute in class file"); |
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425 } |
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426 } |
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427 } |
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428 |
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429 |
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430 // During bootstrap, java.lang.Class wasn't loaded so static field |
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431 // offsets were computed without the size added it. Go back and |
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432 // update all the static field offsets to included the size. |
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433 static void fixup_static_field(fieldDescriptor* fd, TRAPS) { |
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434 if (fd->is_static()) { |
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435 int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields(); |
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436 typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields(); |
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437 fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset)); |
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438 fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset)); |
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439 } |
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440 } |
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441 |
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442 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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443 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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444 |
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445 if (k->oop_is_instance()) { |
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446 // Fixup the offsets |
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447 instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK); |
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448 } |
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449 create_mirror(k, CHECK); |
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450 } |
0 | 451 |
452 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
453 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
454 // Use this moment of initialization to cache modifier_flags also, | |
455 // to support Class.getModifiers(). Instance classes recalculate | |
456 // the cached flags after the class file is parsed, but before the | |
457 // class is put into the system dictionary. | |
458 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
459 k->set_modifier_flags(computed_modifiers); | |
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460 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
0 | 461 // Allocate mirror (java.lang.Class instance) |
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462 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
0 | 463 // Setup indirections |
464 mirror->obj_field_put(klass_offset, k()); | |
465 k->set_java_mirror(mirror()); | |
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466 |
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467 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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468 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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469 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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470 |
0 | 471 // It might also have a component mirror. This mirror must already exist. |
472 if (k->oop_is_javaArray()) { | |
473 Handle comp_mirror; | |
474 if (k->oop_is_typeArray()) { | |
475 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
476 comp_mirror = Universe::java_mirror(type); | |
477 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
478 } else if (k->oop_is_objArray()) { | |
479 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
480 if (element_klass != NULL | |
481 && (Klass::cast(element_klass)->oop_is_instance() || | |
482 Klass::cast(element_klass)->oop_is_javaArray())) { | |
483 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
484 assert(comp_mirror.not_null(), "must have element mirror"); | |
485 } | |
486 // else some object array internal to the VM, like systemObjArrayKlassObj | |
487 } | |
488 if (comp_mirror.not_null()) { | |
489 // Two-way link between the array klass and its component mirror: | |
490 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
491 set_array_klass(comp_mirror(), k->as_klassOop()); | |
492 } | |
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493 } else if (k->oop_is_instance()) { |
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494 // Initialize static fields |
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495 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 496 } |
497 return mirror(); | |
498 } else { | |
499 return NULL; | |
500 } | |
501 } | |
502 | |
503 | |
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504 |
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505 int java_lang_Class::oop_size(oop java_class) { |
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506 assert(oop_size_offset != 0, "must be set"); |
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507 return java_class->int_field(oop_size_offset); |
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508 } |
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509 void java_lang_Class::set_oop_size(oop java_class, int size) { |
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510 assert(oop_size_offset != 0, "must be set"); |
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511 java_class->int_field_put(oop_size_offset, size); |
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512 } |
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513 int java_lang_Class::static_oop_field_count(oop java_class) { |
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514 assert(static_oop_field_count_offset != 0, "must be set"); |
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515 return java_class->int_field(static_oop_field_count_offset); |
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516 } |
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517 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
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518 assert(static_oop_field_count_offset != 0, "must be set"); |
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519 java_class->int_field_put(static_oop_field_count_offset, size); |
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520 } |
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521 |
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522 |
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523 |
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524 |
0 | 525 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
526 // This should be improved by adding a field at the Java level or by | |
527 // introducing a new VM klass (see comment in ClassFileParser) | |
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528 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
0 | 529 if (type != T_VOID) { |
530 klassOop aklass = Universe::typeArrayKlassObj(type); | |
531 assert(aklass != NULL, "correct bootstrap"); | |
532 set_array_klass(java_class, aklass); | |
533 } | |
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534 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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535 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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536 java_lang_Class::set_static_oop_field_count(java_class, 0); |
0 | 537 return java_class; |
538 } | |
539 | |
540 | |
541 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
542 //%note memory_2 | |
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543 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 544 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
545 assert(k == NULL || k->is_klass(), "type check"); | |
546 return k; | |
547 } | |
548 | |
549 | |
665
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550 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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551 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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552 Symbol* name = NULL; |
665
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553 bool is_instance = false; |
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554 if (is_primitive(java_class)) { |
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555 name = vmSymbols::type_signature(primitive_type(java_class)); |
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556 } else { |
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557 klassOop k = as_klassOop(java_class); |
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558 is_instance = Klass::cast(k)->oop_is_instance(); |
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559 name = Klass::cast(k)->name(); |
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560 } |
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561 if (name == NULL) { |
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562 st->print("<null>"); |
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563 return; |
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564 } |
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565 if (is_instance) st->print("L"); |
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566 st->write((char*) name->base(), (int) name->utf8_length()); |
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567 if (is_instance) st->print(";"); |
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568 } |
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569 |
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570 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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571 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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572 Symbol* name; |
665
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573 if (is_primitive(java_class)) { |
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574 name = vmSymbols::type_signature(primitive_type(java_class)); |
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575 // Because this can create a new symbol, the caller has to decrement |
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576 // the refcount, so make adjustment here and below for symbols returned |
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577 // that are not created or incremented due to a successful lookup. |
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578 name->increment_refcount(); |
665
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579 } else { |
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580 klassOop k = as_klassOop(java_class); |
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581 if (!Klass::cast(k)->oop_is_instance()) { |
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582 name = Klass::cast(k)->name(); |
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583 name->increment_refcount(); |
665
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584 } else { |
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585 ResourceMark rm; |
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586 const char* sigstr = Klass::cast(k)->signature_name(); |
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587 int siglen = (int) strlen(sigstr); |
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588 if (!intern_if_not_found) { |
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589 name = SymbolTable::probe(sigstr, siglen); |
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590 } else { |
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591 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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592 } |
665
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593 } |
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594 } |
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595 return name; |
665
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596 } |
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597 |
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598 |
0 | 599 klassOop java_lang_Class::array_klass(oop java_class) { |
600 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
601 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
602 return k; | |
603 } | |
604 | |
605 | |
606 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
607 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
608 java_class->obj_field_put(array_klass_offset, klass); | |
609 } | |
610 | |
611 | |
612 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
613 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
614 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
615 return methodOop(constructor); | |
616 } | |
617 | |
618 | |
619 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
620 assert(constructor->is_method(), "should be method"); | |
621 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
622 } | |
623 | |
624 | |
625 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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626 // should assert: |
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627 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 628 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
629 return k == NULL; | |
630 } | |
631 | |
632 | |
633 BasicType java_lang_Class::primitive_type(oop java_class) { | |
634 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
635 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
636 BasicType type = T_VOID; | |
637 if (ak != NULL) { | |
638 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
639 type = arrayKlass::cast(ak)->element_type(); | |
640 } else { | |
641 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
642 } | |
643 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
644 return type; | |
645 } | |
646 | |
665
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647 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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648 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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649 if (is_primitive(java_class)) { |
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650 if (reference_klass != NULL) |
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651 (*reference_klass) = NULL; |
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652 return primitive_type(java_class); |
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653 } else { |
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654 if (reference_klass != NULL) |
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655 (*reference_klass) = as_klassOop(java_class); |
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656 return T_OBJECT; |
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657 } |
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658 } |
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659 |
0 | 660 |
661 oop java_lang_Class::primitive_mirror(BasicType t) { | |
662 oop mirror = Universe::java_mirror(t); | |
1142 | 663 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 664 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
665 return mirror; | |
666 } | |
667 | |
668 bool java_lang_Class::offsets_computed = false; | |
669 int java_lang_Class::classRedefinedCount_offset = -1; | |
514 | 670 int java_lang_Class::parallelCapable_offset = -1; |
0 | 671 |
672 void java_lang_Class::compute_offsets() { | |
673 assert(!offsets_computed, "offsets should be initialized only once"); | |
674 offsets_computed = true; | |
675 | |
1142 | 676 klassOop k = SystemDictionary::Class_klass(); |
0 | 677 // The classRedefinedCount field is only present starting in 1.5, |
678 // so don't go fatal. | |
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679 compute_optional_offset(classRedefinedCount_offset, |
0 | 680 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
514 | 681 |
682 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
1142 | 683 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
514 | 684 compute_optional_offset(parallelCapable_offset, |
685 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
686 } | |
687 | |
688 // For class loader classes, parallelCapable defined | |
689 // based on non-null field | |
690 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
691 bool java_lang_Class::parallelCapable(oop class_loader) { | |
692 if (!JDK_Version::is_gte_jdk17x_version() | |
693 || parallelCapable_offset == -1) { | |
694 // Default for backward compatibility is false | |
695 return false; | |
696 } | |
697 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
0 | 698 } |
699 | |
700 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
701 if (!JDK_Version::is_gte_jdk15x_version() | |
702 || classRedefinedCount_offset == -1) { | |
703 // The classRedefinedCount field is only present starting in 1.5. | |
704 // If we don't have an offset for it then just return -1 as a marker. | |
705 return -1; | |
706 } | |
707 | |
708 return the_class_mirror->int_field(classRedefinedCount_offset); | |
709 } | |
710 | |
711 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
712 if (!JDK_Version::is_gte_jdk15x_version() | |
713 || classRedefinedCount_offset == -1) { | |
714 // The classRedefinedCount field is only present starting in 1.5. | |
715 // If we don't have an offset for it then nothing to set. | |
716 return; | |
717 } | |
718 | |
719 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
720 } | |
721 | |
722 | |
723 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
724 // platform thread structure, and a eetop offset which was used for thread | |
725 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
726 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
727 // instead of the privateInfo_offset. | |
728 // | |
729 // Note: The stackSize field is only present starting in 1.4. | |
730 | |
731 int java_lang_Thread::_name_offset = 0; | |
732 int java_lang_Thread::_group_offset = 0; | |
733 int java_lang_Thread::_contextClassLoader_offset = 0; | |
734 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
735 int java_lang_Thread::_priority_offset = 0; | |
736 int java_lang_Thread::_eetop_offset = 0; | |
737 int java_lang_Thread::_daemon_offset = 0; | |
738 int java_lang_Thread::_stillborn_offset = 0; | |
739 int java_lang_Thread::_stackSize_offset = 0; | |
740 int java_lang_Thread::_tid_offset = 0; | |
741 int java_lang_Thread::_thread_status_offset = 0; | |
742 int java_lang_Thread::_park_blocker_offset = 0; | |
743 int java_lang_Thread::_park_event_offset = 0 ; | |
744 | |
745 | |
746 void java_lang_Thread::compute_offsets() { | |
747 assert(_group_offset == 0, "offsets should be initialized only once"); | |
748 | |
1142 | 749 klassOop k = SystemDictionary::Thread_klass(); |
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750 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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751 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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752 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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753 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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754 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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755 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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756 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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757 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 758 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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759 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 760 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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761 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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762 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 763 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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764 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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765 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 766 vmSymbols::long_signature()); |
767 } | |
768 | |
769 | |
770 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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771 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 772 } |
773 | |
774 | |
775 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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776 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 777 } |
778 | |
779 | |
780 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
781 oop name = java_thread->obj_field(_name_offset); | |
782 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
783 return typeArrayOop(name); | |
784 } | |
785 | |
786 | |
787 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
788 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
789 java_thread->obj_field_put(_name_offset, name); | |
790 } | |
791 | |
792 | |
793 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
794 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
795 } | |
796 | |
797 | |
798 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
799 java_thread->int_field_put(_priority_offset, priority); | |
800 } | |
801 | |
802 | |
803 oop java_lang_Thread::threadGroup(oop java_thread) { | |
804 return java_thread->obj_field(_group_offset); | |
805 } | |
806 | |
807 | |
808 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
809 return java_thread->bool_field(_stillborn_offset) != 0; | |
810 } | |
811 | |
812 | |
813 // We never have reason to turn the stillborn bit off | |
814 void java_lang_Thread::set_stillborn(oop java_thread) { | |
815 java_thread->bool_field_put(_stillborn_offset, true); | |
816 } | |
817 | |
818 | |
819 bool java_lang_Thread::is_alive(oop java_thread) { | |
820 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
821 return (thr != NULL); | |
822 } | |
823 | |
824 | |
825 bool java_lang_Thread::is_daemon(oop java_thread) { | |
826 return java_thread->bool_field(_daemon_offset) != 0; | |
827 } | |
828 | |
829 | |
830 void java_lang_Thread::set_daemon(oop java_thread) { | |
831 java_thread->bool_field_put(_daemon_offset, true); | |
832 } | |
833 | |
834 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
835 return java_thread->obj_field(_contextClassLoader_offset); | |
836 } | |
837 | |
838 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
839 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
840 } | |
841 | |
842 | |
843 jlong java_lang_Thread::stackSize(oop java_thread) { | |
844 // The stackSize field is only present starting in 1.4 | |
845 if (_stackSize_offset > 0) { | |
846 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
847 return java_thread->long_field(_stackSize_offset); | |
848 } else { | |
849 return 0; | |
850 } | |
851 } | |
852 | |
853 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
854 void java_lang_Thread::set_thread_status(oop java_thread, | |
855 java_lang_Thread::ThreadStatus status) { | |
856 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
857 // The threadStatus is only present starting in 1.5 | |
858 if (_thread_status_offset > 0) { | |
859 java_thread->int_field_put(_thread_status_offset, status); | |
860 } | |
861 } | |
862 | |
863 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
864 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
865 assert(Thread::current()->is_VM_thread() || | |
866 JavaThread::current()->thread_state() == _thread_in_vm, | |
867 "Java Thread is not running in vm"); | |
868 // The threadStatus is only present starting in 1.5 | |
869 if (_thread_status_offset > 0) { | |
870 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
871 } else { | |
872 // All we can easily figure out is if it is alive, but that is | |
873 // enough info for a valid unknown status. | |
874 // These aren't restricted to valid set ThreadStatus values, so | |
875 // use JVMTI values and cast. | |
876 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
877 if (thr == NULL) { | |
878 // the thread hasn't run yet or is in the process of exiting | |
879 return NEW; | |
880 } | |
881 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
882 } | |
883 } | |
884 | |
885 | |
886 jlong java_lang_Thread::thread_id(oop java_thread) { | |
887 // The thread ID field is only present starting in 1.5 | |
888 if (_tid_offset > 0) { | |
889 return java_thread->long_field(_tid_offset); | |
890 } else { | |
891 return 0; | |
892 } | |
893 } | |
894 | |
895 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 896 assert(JDK_Version::current().supports_thread_park_blocker() && |
897 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 898 |
899 if (_park_blocker_offset > 0) { | |
900 return java_thread->obj_field(_park_blocker_offset); | |
901 } | |
902 | |
903 return NULL; | |
904 } | |
905 | |
906 jlong java_lang_Thread::park_event(oop java_thread) { | |
907 if (_park_event_offset > 0) { | |
908 return java_thread->long_field(_park_event_offset); | |
909 } | |
910 return 0; | |
911 } | |
912 | |
913 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
914 if (_park_event_offset > 0) { | |
915 java_thread->long_field_put(_park_event_offset, ptr); | |
916 return true; | |
917 } | |
918 return false; | |
919 } | |
920 | |
921 | |
922 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
923 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
924 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
925 switch (status) { | |
926 case NEW : return "NEW"; | |
927 case RUNNABLE : return "RUNNABLE"; | |
928 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
929 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
930 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
931 case PARKED : return "WAITING (parking)"; | |
932 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
933 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
934 case TERMINATED : return "TERMINATED"; | |
935 default : return "UNKNOWN"; | |
936 }; | |
937 } | |
938 int java_lang_ThreadGroup::_parent_offset = 0; | |
939 int java_lang_ThreadGroup::_name_offset = 0; | |
940 int java_lang_ThreadGroup::_threads_offset = 0; | |
941 int java_lang_ThreadGroup::_groups_offset = 0; | |
942 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
943 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
944 int java_lang_ThreadGroup::_daemon_offset = 0; | |
945 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
946 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
947 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
948 | |
949 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
950 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
951 return java_thread_group->obj_field(_parent_offset); | |
952 } | |
953 | |
954 // ("name as oop" accessor is not necessary) | |
955 | |
956 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
957 oop name = java_thread_group->obj_field(_name_offset); | |
958 // ThreadGroup.name can be null | |
959 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
960 } | |
961 | |
962 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
963 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
964 return java_thread_group->int_field(_nthreads_offset); | |
965 } | |
966 | |
967 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
968 oop threads = java_thread_group->obj_field(_threads_offset); | |
969 assert(threads != NULL, "threadgroups should have threads"); | |
970 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
971 return objArrayOop(threads); | |
972 } | |
973 | |
974 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
975 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
976 return java_thread_group->int_field(_ngroups_offset); | |
977 } | |
978 | |
979 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
980 oop groups = java_thread_group->obj_field(_groups_offset); | |
981 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
982 return objArrayOop(groups); | |
983 } | |
984 | |
985 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
986 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
987 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
988 } | |
989 | |
990 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
991 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
992 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
993 } | |
994 | |
995 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
996 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
997 return java_thread_group->bool_field(_daemon_offset) != 0; | |
998 } | |
999 | |
1000 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1001 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1002 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1003 } | |
1004 | |
1005 void java_lang_ThreadGroup::compute_offsets() { | |
1006 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1007 | |
1142 | 1008 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 1009 |
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1010 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1011 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1012 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1013 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1014 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1015 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1016 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1017 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1018 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1019 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1020 } |
1021 | |
1022 oop java_lang_Throwable::backtrace(oop throwable) { | |
1023 return throwable->obj_field_acquire(backtrace_offset); | |
1024 } | |
1025 | |
1026 | |
1027 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1028 throwable->release_obj_field_put(backtrace_offset, value); | |
1029 } | |
1030 | |
1031 | |
1032 oop java_lang_Throwable::message(oop throwable) { | |
1033 return throwable->obj_field(detailMessage_offset); | |
1034 } | |
1035 | |
1036 | |
1037 oop java_lang_Throwable::message(Handle throwable) { | |
1038 return throwable->obj_field(detailMessage_offset); | |
1039 } | |
1040 | |
1041 | |
1042 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1043 throwable->obj_field_put(detailMessage_offset, value); | |
1044 } | |
1045 | |
1046 | |
1047 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
1048 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1049 throwable->obj_field_put(stackTrace_offset, NULL); | |
1050 } | |
1051 | |
1052 | |
1053 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1054 ResourceMark rm; | |
1055 klassOop k = throwable->klass(); | |
1056 assert(k != NULL, "just checking"); | |
1057 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1058 oop msg = message(throwable); | |
1059 if (msg != NULL) { | |
1060 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1061 } | |
1062 } | |
1063 | |
1064 | |
1065 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1066 ResourceMark rm; | |
1067 klassOop k = throwable->klass(); | |
1068 assert(k != NULL, "just checking"); | |
1069 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1070 oop msg = message(throwable); | |
1071 if (msg != NULL) { | |
1072 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1073 } | |
1074 } | |
1075 | |
1076 // Print stack trace element to resource allocated buffer | |
1077 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
1078 // Get strings and string lengths | |
1079 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
1080 const char* klass_name = klass->external_name(); | |
1081 int buf_len = (int)strlen(klass_name); | |
1082 char* source_file_name; | |
1083 if (klass->source_file_name() == NULL) { | |
1084 source_file_name = NULL; | |
1085 } else { | |
1086 source_file_name = klass->source_file_name()->as_C_string(); | |
1087 buf_len += (int)strlen(source_file_name); | |
1088 } | |
1089 char* method_name = method->name()->as_C_string(); | |
1090 buf_len += (int)strlen(method_name); | |
1091 | |
1092 // Allocate temporary buffer with extra space for formatting and line number | |
1093 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1094 | |
1095 // Print stack trace line in buffer | |
1096 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1097 if (method->is_native()) { | |
1098 strcat(buf, "(Native Method)"); | |
1099 } else { | |
1100 int line_number = method->line_number_from_bci(bci); | |
1101 if (source_file_name != NULL && (line_number != -1)) { | |
1102 // Sourcename and linenumber | |
1103 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1104 } else if (source_file_name != NULL) { | |
1105 // Just sourcename | |
1106 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1107 } else { | |
1108 // Neither soucename and linenumber | |
1109 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1110 } | |
1111 nmethod* nm = method->code(); | |
1112 if (WizardMode && nm != NULL) { | |
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1113 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
0 | 1114 } |
1115 } | |
1116 | |
1117 return buf; | |
1118 } | |
1119 | |
1120 | |
1121 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1122 ResourceMark rm; | |
1123 char* buf = print_stack_element_to_buffer(method, bci); | |
1124 print_to_stream(stream, buf); | |
1125 } | |
1126 | |
1127 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1128 ResourceMark rm; | |
1129 char* buf = print_stack_element_to_buffer(method, bci); | |
1130 st->print_cr("%s", buf); | |
1131 } | |
1132 | |
1133 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1134 if (stream.is_null()) { | |
1135 tty->print_cr("%s", str); | |
1136 } else { | |
1137 EXCEPTION_MARK; | |
1138 JavaValue result(T_VOID); | |
1139 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1140 if (!HAS_PENDING_EXCEPTION) { | |
1141 JavaCalls::call_virtual(&result, | |
1142 stream, | |
1143 KlassHandle(THREAD, stream->klass()), | |
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1144 vmSymbols::println_name(), |
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1145 vmSymbols::char_array_void_signature(), |
0 | 1146 arg, |
1147 THREAD); | |
1148 } | |
1149 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1150 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1151 } | |
1152 | |
1153 } | |
1154 | |
1155 | |
1156 const char* java_lang_Throwable::no_stack_trace_message() { | |
1157 return "\t<<no stack trace available>>"; | |
1158 } | |
1159 | |
1160 | |
1161 // Currently used only for exceptions occurring during startup | |
1162 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1163 Thread *THREAD = Thread::current(); | |
1164 Handle h_throwable(THREAD, throwable); | |
1165 while (h_throwable.not_null()) { | |
1166 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1167 if (result.is_null()) { | |
1168 st->print_cr(no_stack_trace_message()); | |
1169 return; | |
1170 } | |
1171 | |
1172 while (result.not_null()) { | |
1173 objArrayHandle methods (THREAD, | |
1174 objArrayOop(result->obj_at(trace_methods_offset))); | |
1175 typeArrayHandle bcis (THREAD, | |
1176 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1177 | |
1178 if (methods.is_null() || bcis.is_null()) { | |
1179 st->print_cr(no_stack_trace_message()); | |
1180 return; | |
1181 } | |
1182 | |
1183 int length = methods()->length(); | |
1184 for (int index = 0; index < length; index++) { | |
1185 methodOop method = methodOop(methods()->obj_at(index)); | |
1186 if (method == NULL) goto handle_cause; | |
1187 int bci = bcis->ushort_at(index); | |
1188 print_stack_element(st, method, bci); | |
1189 } | |
1190 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1191 } | |
1192 handle_cause: | |
1193 { | |
1194 EXCEPTION_MARK; | |
1195 JavaValue result(T_OBJECT); | |
1196 JavaCalls::call_virtual(&result, | |
1197 h_throwable, | |
1198 KlassHandle(THREAD, h_throwable->klass()), | |
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1199 vmSymbols::getCause_name(), |
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1200 vmSymbols::void_throwable_signature(), |
0 | 1201 THREAD); |
1202 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1203 if (HAS_PENDING_EXCEPTION) { | |
1204 CLEAR_PENDING_EXCEPTION; | |
1205 h_throwable = Handle(); | |
1206 } else { | |
1207 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1208 if (h_throwable.not_null()) { | |
1209 st->print("Caused by: "); | |
1210 print(h_throwable, st); | |
1211 st->cr(); | |
1212 } | |
1213 } | |
1214 } | |
1215 } | |
1216 } | |
1217 | |
1218 | |
1219 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1220 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1221 Thread *thread = Thread::current(); | |
1222 Handle stream(thread, print_stream); | |
1223 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1224 if (result.is_null()) { | |
1225 print_to_stream(stream, no_stack_trace_message()); | |
1226 return; | |
1227 } | |
1228 | |
1229 while (result.not_null()) { | |
1230 objArrayHandle methods (thread, | |
1231 objArrayOop(result->obj_at(trace_methods_offset))); | |
1232 typeArrayHandle bcis (thread, | |
1233 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1234 | |
1235 if (methods.is_null() || bcis.is_null()) { | |
1236 print_to_stream(stream, no_stack_trace_message()); | |
1237 return; | |
1238 } | |
1239 | |
1240 int length = methods()->length(); | |
1241 for (int index = 0; index < length; index++) { | |
1242 methodOop method = methodOop(methods()->obj_at(index)); | |
1243 if (method == NULL) return; | |
1244 int bci = bcis->ushort_at(index); | |
1245 print_stack_element(stream, method, bci); | |
1246 } | |
1247 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1248 } | |
1249 } | |
1250 | |
1251 // This class provides a simple wrapper over the internal structure of | |
1252 // exception backtrace to insulate users of the backtrace from needing | |
1253 // to know what it looks like. | |
1254 class BacktraceBuilder: public StackObj { | |
1255 private: | |
1256 Handle _backtrace; | |
1257 objArrayOop _head; | |
1258 objArrayOop _methods; | |
1259 typeArrayOop _bcis; | |
1260 int _index; | |
1261 bool _dirty; | |
1262 No_Safepoint_Verifier _nsv; | |
1263 | |
1264 public: | |
1265 | |
1266 enum { | |
1267 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1268 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1269 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1270 trace_size = java_lang_Throwable::trace_size, | |
1271 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1272 }; | |
1273 | |
1274 // constructor for new backtrace | |
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1275 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
0 | 1276 expand(CHECK); |
1277 _backtrace = _head; | |
1278 _index = 0; | |
1279 } | |
1280 | |
1281 void flush() { | |
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1282 // The following appears to have been an optimization to save from |
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1283 // doing a barrier for each individual store into the _methods array, |
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1284 // but rather to do it for the entire array after the series of writes. |
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1285 // That optimization seems to have been lost when compressed oops was |
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1286 // implemented. However, the extra card-marks below was left in place, |
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1287 // but is now redundant because the individual stores into the |
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1288 // _methods array already execute the barrier code. CR 6918185 has |
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1289 // been filed so the original code may be restored by deferring the |
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1290 // barriers until after the entire sequence of stores, thus re-enabling |
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1291 // the intent of the original optimization. In the meantime the redundant |
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1292 // card mark below is now disabled. |
0 | 1293 if (_dirty && _methods != NULL) { |
1245
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1294 #if 0 |
0 | 1295 BarrierSet* bs = Universe::heap()->barrier_set(); |
1296 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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1297 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
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1298 #endif |
0 | 1299 _dirty = false; |
1300 } | |
1301 } | |
1302 | |
1303 void expand(TRAPS) { | |
1304 flush(); | |
1305 | |
1306 objArrayHandle old_head(THREAD, _head); | |
1307 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1308 | |
1309 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1310 objArrayHandle new_head(THREAD, head); | |
1311 | |
1312 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1313 objArrayHandle new_methods(THREAD, methods); | |
1314 | |
1315 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1316 typeArrayHandle new_bcis(THREAD, bcis); | |
1317 | |
1318 if (!old_head.is_null()) { | |
1319 old_head->obj_at_put(trace_next_offset, new_head()); | |
1320 } | |
1321 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1322 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1323 | |
1324 _head = new_head(); | |
1325 _methods = new_methods(); | |
1326 _bcis = new_bcis(); | |
1327 _index = 0; | |
1328 } | |
1329 | |
1330 oop backtrace() { | |
1331 flush(); | |
1332 return _backtrace(); | |
1333 } | |
1334 | |
1335 inline void push(methodOop method, short bci, TRAPS) { | |
1336 if (_index >= trace_chunk_size) { | |
1337 methodHandle mhandle(THREAD, method); | |
1338 expand(CHECK); | |
1339 method = mhandle(); | |
1340 } | |
1341 | |
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1342 _methods->obj_at_put(_index, method); |
0 | 1343 _bcis->ushort_at_put(_index, bci); |
1344 _index++; | |
1345 _dirty = true; | |
1346 } | |
1347 | |
1348 methodOop current_method() { | |
1349 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1350 return methodOop(_methods->obj_at(_index)); | |
1351 } | |
1352 | |
1353 jushort current_bci() { | |
1354 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1355 return _bcis->ushort_at(_index); | |
1356 } | |
1357 }; | |
1358 | |
1359 | |
1360 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
1361 if (!StackTraceInThrowable) return; | |
1362 ResourceMark rm(THREAD); | |
1363 | |
1364 // Start out by clearing the backtrace for this object, in case the VM | |
1365 // runs out of memory while allocating the stack trace | |
1366 set_backtrace(throwable(), NULL); | |
1367 if (JDK_Version::is_gte_jdk14x_version()) { | |
1368 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1369 // refilling occurs | |
1370 clear_stacktrace(throwable()); | |
1371 } | |
1372 | |
1373 int max_depth = MaxJavaStackTraceDepth; | |
1374 JavaThread* thread = (JavaThread*)THREAD; | |
1375 BacktraceBuilder bt(CHECK); | |
1376 | |
1377 // Instead of using vframe directly, this version of fill_in_stack_trace | |
1378 // basically handles everything by hand. This significantly improved the | |
1379 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1380 // See bug 6333838 for more details. | |
1381 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1382 // trace as utilizing vframe. | |
1383 #ifdef ASSERT | |
1384 vframeStream st(thread); | |
1385 methodHandle st_method(THREAD, st.method()); | |
1386 #endif | |
1387 int total_count = 0; | |
1388 RegisterMap map(thread, false); | |
1389 int decode_offset = 0; | |
1390 nmethod* nm = NULL; | |
1391 bool skip_fillInStackTrace_check = false; | |
1392 bool skip_throwableInit_check = false; | |
1393 | |
1394 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1395 methodOop method = NULL; | |
1396 int bci = 0; | |
1397 | |
1398 // Compiled java method case. | |
1399 if (decode_offset != 0) { | |
1400 DebugInfoReadStream stream(nm, decode_offset); | |
1401 decode_offset = stream.read_int(); | |
1402 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1403 bci = stream.read_bci(); |
0 | 1404 } else { |
1405 if (fr.is_first_frame()) break; | |
1406 address pc = fr.pc(); | |
1407 if (fr.is_interpreted_frame()) { | |
1408 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1409 method = fr.interpreter_frame_method(); | |
1410 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1411 fr = fr.sender(&map); | |
1412 } else { | |
1413 CodeBlob* cb = fr.cb(); | |
1414 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1415 // but non nmethod | |
1416 fr = fr.sender(&map); | |
1417 if (cb == NULL || !cb->is_nmethod()) { | |
1418 continue; | |
1419 } | |
1420 nm = (nmethod*)cb; | |
1421 if (nm->method()->is_native()) { | |
1422 method = nm->method(); | |
1423 bci = 0; | |
1424 } else { | |
1425 PcDesc* pd = nm->pc_desc_at(pc); | |
1426 decode_offset = pd->scope_decode_offset(); | |
1427 // if decode_offset is not equal to 0, it will execute the | |
1428 // "compiled java method case" at the beginning of the loop. | |
1429 continue; | |
1430 } | |
1431 } | |
1432 } | |
1433 #ifdef ASSERT | |
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1434 assert(st_method() == method && st.bci() == bci, |
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1435 "Wrong stack trace"); |
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1436 st.next(); |
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1437 // vframeStream::method isn't GC-safe so store off a copy |
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1438 // of the methodOop in case we GC. |
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1439 if (!st.at_end()) { |
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1440 st_method = st.method(); |
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1441 } |
0 | 1442 #endif |
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1443 |
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1444 // the format of the stacktrace will be: |
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1445 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1446 // - 0 or more <init> methods for the exception class (skipped) |
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1447 // - rest of the stack |
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1448 |
0 | 1449 if (!skip_fillInStackTrace_check) { |
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1450 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1451 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1452 throwable->is_a(method->method_holder())) { |
0 | 1453 continue; |
1454 } | |
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1455 else { |
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1456 skip_fillInStackTrace_check = true; // gone past them all |
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1457 } |
0 | 1458 } |
1459 if (!skip_throwableInit_check) { | |
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1460 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1461 |
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1462 // skip <init> methods of the exception class and superclasses |
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1463 // This is simlar to classic VM. |
0 | 1464 if (method->name() == vmSymbols::object_initializer_name() && |
1465 throwable->is_a(method->method_holder())) { | |
1466 continue; | |
1467 } else { | |
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1468 // there are none or we've seen them all - either way stop checking |
0 | 1469 skip_throwableInit_check = true; |
1470 } | |
1471 } | |
1472 bt.push(method, bci, CHECK); | |
1473 total_count++; | |
1474 } | |
1475 | |
1476 // Put completed stack trace into throwable object | |
1477 set_backtrace(throwable(), bt.backtrace()); | |
1478 } | |
1479 | |
1480 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
1481 // No-op if stack trace is disabled | |
1482 if (!StackTraceInThrowable) { | |
1483 return; | |
1484 } | |
1485 | |
1486 // Disable stack traces for some preallocated out of memory errors | |
1487 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1488 return; | |
1489 } | |
1490 | |
1491 PRESERVE_EXCEPTION_MARK; | |
1492 | |
1493 JavaThread* thread = JavaThread::active(); | |
1494 fill_in_stack_trace(throwable, thread); | |
1495 // ignore exceptions thrown during stack trace filling | |
1496 CLEAR_PENDING_EXCEPTION; | |
1497 } | |
1498 | |
1499 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1500 // Allocate stack trace - backtrace is created but not filled in | |
1501 | |
1502 // No-op if stack trace is disabled | |
1503 if (!StackTraceInThrowable) return; | |
1504 | |
1505 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1506 objArrayHandle backtrace (THREAD, h_oop); | |
1507 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1508 objArrayHandle methods (THREAD, m_oop); | |
1509 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1510 typeArrayHandle bcis(THREAD, b); | |
1511 | |
1512 // backtrace has space for one chunk (next is NULL) | |
1513 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1514 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1515 set_backtrace(throwable(), backtrace()); | |
1516 } | |
1517 | |
1518 | |
1519 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1520 // Fill in stack trace into preallocated backtrace (no GC) | |
1521 | |
1522 // No-op if stack trace is disabled | |
1523 if (!StackTraceInThrowable) return; | |
1524 | |
1142 | 1525 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1526 |
1527 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1528 assert(backtrace != NULL, "backtrace not preallocated"); | |
1529 | |
1530 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1531 objArrayOop methods = objArrayOop(m); | |
1532 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1533 | |
1534 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1535 typeArrayOop bcis = typeArrayOop(b); | |
1536 assert(bcis != NULL, "bci array not preallocated"); | |
1537 | |
1538 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1539 | |
1540 JavaThread* thread = JavaThread::current(); | |
1541 ResourceMark rm(thread); | |
1542 vframeStream st(thread); | |
1543 | |
1544 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1545 // methods as preallocated errors aren't created by "java" code. | |
1546 | |
1547 // fill in as much stack trace as possible | |
1548 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1549 int chunk_count = 0; | |
1550 | |
1551 for (;!st.at_end(); st.next()) { | |
1552 // add element | |
1553 bcis->ushort_at_put(chunk_count, st.bci()); | |
1554 methods->obj_at_put(chunk_count, st.method()); | |
1555 | |
1556 chunk_count++; | |
1557 | |
1558 // Bail-out for deep stacks | |
1559 if (chunk_count >= max_chunks) break; | |
1560 } | |
1561 } | |
1562 | |
1563 | |
1564 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1565 if (throwable == NULL) { | |
1566 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1567 } | |
1568 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1569 int depth = 0; | |
1570 if (chunk != NULL) { | |
1571 // Iterate over chunks and count full ones | |
1572 while (true) { | |
1573 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1574 if (next == NULL) break; | |
1575 depth += trace_chunk_size; | |
1576 chunk = next; | |
1577 } | |
1578 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1579 // Count element in remaining partial chunk | |
1580 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1581 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1582 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1583 for (int i = 0; i < methods->length(); i++) { | |
1584 if (methods->obj_at(i) == NULL) break; | |
1585 depth++; | |
1586 } | |
1587 } | |
1588 return depth; | |
1589 } | |
1590 | |
1591 | |
1592 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1593 if (throwable == NULL) { | |
1594 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1595 } | |
1596 if (index < 0) { | |
1597 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1598 } | |
1599 // Compute how many chunks to skip and index into actual chunk | |
1600 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1601 int skip_chunks = index / trace_chunk_size; | |
1602 int chunk_index = index % trace_chunk_size; | |
1603 while (chunk != NULL && skip_chunks > 0) { | |
1604 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1605 skip_chunks--; | |
1606 } | |
1607 if (chunk == NULL) { | |
1608 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1609 } | |
1610 // Get method,bci from chunk | |
1611 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1612 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1613 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1614 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1615 int bci = bcis->ushort_at(chunk_index); | |
1616 // Chunk can be partial full | |
1617 if (method.is_null()) { | |
1618 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1619 } | |
1620 | |
1621 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1622 return element; | |
1623 } | |
1624 | |
1625 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1626 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1627 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1628 | |
1629 // Allocate java.lang.StackTraceElement instance | |
1142 | 1630 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1631 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1632 instanceKlassHandle ik (THREAD, k); |
1633 if (ik->should_be_initialized()) { | |
1634 ik->initialize(CHECK_0); | |
1635 } | |
1636 | |
1637 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1638 // Fill in class name | |
1639 ResourceMark rm(THREAD); | |
1640 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1641 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1642 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1643 // Fill in method name | |
1644 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1645 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1646 // Fill in source file name | |
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1647 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1648 oop filename = StringTable::intern(source, CHECK_0); |
1649 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1650 // File in source line number | |
1651 int line_number; | |
1652 if (method->is_native()) { | |
1653 // Negative value different from -1 below, enabling Java code in | |
1654 // class java.lang.StackTraceElement to distinguish "native" from | |
1655 // "no LineNumberTable". | |
1656 line_number = -2; | |
1657 } else { | |
1658 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1659 line_number = method->line_number_from_bci(bci); | |
1660 } | |
1661 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1662 | |
1663 return element(); | |
1664 } | |
1665 | |
1666 | |
1667 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1668 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1669 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1670 } |
1671 | |
1672 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1673 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1674 return (jboolean) reflect->bool_field(override_offset); | |
1675 } | |
1676 | |
1677 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1678 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1679 reflect->bool_field_put(override_offset, (int) value); | |
1680 } | |
1681 | |
1682 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1683 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1684 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1685 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1686 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1687 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1688 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1689 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1690 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1691 // The generic signature and annotations fields are only present in 1.5 |
1692 signature_offset = -1; | |
1693 annotations_offset = -1; | |
1694 parameter_annotations_offset = -1; | |
1695 annotation_default_offset = -1; | |
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1696 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1697 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1698 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1699 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1700 } |
1701 | |
1702 Handle java_lang_reflect_Method::create(TRAPS) { | |
1703 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1704 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1705 // This class is eagerly initialized during VM initialization, since we keep a refence |
1706 // to one of the methods | |
1707 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1708 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1709 } | |
1710 | |
1711 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1712 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1713 return reflect->obj_field(clazz_offset); | |
1714 } | |
1715 | |
1716 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1717 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1718 reflect->obj_field_put(clazz_offset, value); | |
1719 } | |
1720 | |
1721 int java_lang_reflect_Method::slot(oop reflect) { | |
1722 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1723 return reflect->int_field(slot_offset); | |
1724 } | |
1725 | |
1726 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1727 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1728 reflect->int_field_put(slot_offset, value); | |
1729 } | |
1730 | |
1731 oop java_lang_reflect_Method::name(oop method) { | |
1732 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1733 return method->obj_field(name_offset); | |
1734 } | |
1735 | |
1736 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1737 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1738 method->obj_field_put(name_offset, value); | |
1739 } | |
1740 | |
1741 oop java_lang_reflect_Method::return_type(oop method) { | |
1742 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1743 return method->obj_field(returnType_offset); | |
1744 } | |
1745 | |
1746 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1747 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1748 method->obj_field_put(returnType_offset, value); | |
1749 } | |
1750 | |
1751 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1752 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1753 return method->obj_field(parameterTypes_offset); | |
1754 } | |
1755 | |
1756 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1757 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1758 method->obj_field_put(parameterTypes_offset, value); | |
1759 } | |
1760 | |
1761 oop java_lang_reflect_Method::exception_types(oop method) { | |
1762 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1763 return method->obj_field(exceptionTypes_offset); | |
1764 } | |
1765 | |
1766 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1767 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1768 method->obj_field_put(exceptionTypes_offset, value); | |
1769 } | |
1770 | |
1771 int java_lang_reflect_Method::modifiers(oop method) { | |
1772 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1773 return method->int_field(modifiers_offset); | |
1774 } | |
1775 | |
1776 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1777 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1778 method->int_field_put(modifiers_offset, value); | |
1779 } | |
1780 | |
1781 bool java_lang_reflect_Method::has_signature_field() { | |
1782 return (signature_offset >= 0); | |
1783 } | |
1784 | |
1785 oop java_lang_reflect_Method::signature(oop method) { | |
1786 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1787 assert(has_signature_field(), "signature field must be present"); | |
1788 return method->obj_field(signature_offset); | |
1789 } | |
1790 | |
1791 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1792 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1793 assert(has_signature_field(), "signature field must be present"); | |
1794 method->obj_field_put(signature_offset, value); | |
1795 } | |
1796 | |
1797 bool java_lang_reflect_Method::has_annotations_field() { | |
1798 return (annotations_offset >= 0); | |
1799 } | |
1800 | |
1801 oop java_lang_reflect_Method::annotations(oop method) { | |
1802 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1803 assert(has_annotations_field(), "annotations field must be present"); | |
1804 return method->obj_field(annotations_offset); | |
1805 } | |
1806 | |
1807 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1808 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1809 assert(has_annotations_field(), "annotations field must be present"); | |
1810 method->obj_field_put(annotations_offset, value); | |
1811 } | |
1812 | |
1813 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1814 return (parameter_annotations_offset >= 0); | |
1815 } | |
1816 | |
1817 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1818 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1819 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1820 return method->obj_field(parameter_annotations_offset); | |
1821 } | |
1822 | |
1823 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1824 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1825 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1826 method->obj_field_put(parameter_annotations_offset, value); | |
1827 } | |
1828 | |
1829 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1830 return (annotation_default_offset >= 0); | |
1831 } | |
1832 | |
1833 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1834 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1835 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1836 return method->obj_field(annotation_default_offset); | |
1837 } | |
1838 | |
1839 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1840 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1841 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1842 method->obj_field_put(annotation_default_offset, value); | |
1843 } | |
1844 | |
1845 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1846 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1847 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1848 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1849 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1850 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1851 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1852 // The generic signature and annotations fields are only present in 1.5 |
1853 signature_offset = -1; | |
1854 annotations_offset = -1; | |
1855 parameter_annotations_offset = -1; | |
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1856 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1857 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1858 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1859 } |
1860 | |
1861 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1862 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1863 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1864 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1865 instanceKlassHandle klass (THREAD, k); | |
1866 // Ensure it is initialized | |
1867 klass->initialize(CHECK_NH); | |
1868 return klass->allocate_instance_handle(CHECK_NH); | |
1869 } | |
1870 | |
1871 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1872 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1873 return reflect->obj_field(clazz_offset); | |
1874 } | |
1875 | |
1876 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1877 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1878 reflect->obj_field_put(clazz_offset, value); | |
1879 } | |
1880 | |
1881 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1882 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1883 return constructor->obj_field(parameterTypes_offset); | |
1884 } | |
1885 | |
1886 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1887 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1888 constructor->obj_field_put(parameterTypes_offset, value); | |
1889 } | |
1890 | |
1891 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1892 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1893 return constructor->obj_field(exceptionTypes_offset); | |
1894 } | |
1895 | |
1896 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1897 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1898 constructor->obj_field_put(exceptionTypes_offset, value); | |
1899 } | |
1900 | |
1901 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1902 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1903 return reflect->int_field(slot_offset); | |
1904 } | |
1905 | |
1906 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1907 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1908 reflect->int_field_put(slot_offset, value); | |
1909 } | |
1910 | |
1911 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1912 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1913 return constructor->int_field(modifiers_offset); | |
1914 } | |
1915 | |
1916 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1917 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1918 constructor->int_field_put(modifiers_offset, value); | |
1919 } | |
1920 | |
1921 bool java_lang_reflect_Constructor::has_signature_field() { | |
1922 return (signature_offset >= 0); | |
1923 } | |
1924 | |
1925 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1926 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1927 assert(has_signature_field(), "signature field must be present"); | |
1928 return constructor->obj_field(signature_offset); | |
1929 } | |
1930 | |
1931 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1932 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1933 assert(has_signature_field(), "signature field must be present"); | |
1934 constructor->obj_field_put(signature_offset, value); | |
1935 } | |
1936 | |
1937 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1938 return (annotations_offset >= 0); | |
1939 } | |
1940 | |
1941 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1942 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1943 assert(has_annotations_field(), "annotations field must be present"); | |
1944 return constructor->obj_field(annotations_offset); | |
1945 } | |
1946 | |
1947 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1948 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1949 assert(has_annotations_field(), "annotations field must be present"); | |
1950 constructor->obj_field_put(annotations_offset, value); | |
1951 } | |
1952 | |
1953 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1954 return (parameter_annotations_offset >= 0); | |
1955 } | |
1956 | |
1957 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1958 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1959 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1960 return method->obj_field(parameter_annotations_offset); | |
1961 } | |
1962 | |
1963 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1964 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1965 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1966 method->obj_field_put(parameter_annotations_offset, value); | |
1967 } | |
1968 | |
1969 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 1970 klassOop k = SystemDictionary::reflect_Field_klass(); |
132
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1971 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1972 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1973 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1974 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1975 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1976 // The generic signature and annotations fields are only present in 1.5 |
1977 signature_offset = -1; | |
1978 annotations_offset = -1; | |
132
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1979 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1980 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1981 } |
1982 | |
1983 Handle java_lang_reflect_Field::create(TRAPS) { | |
1984 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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1985 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 1986 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1987 instanceKlassHandle klass (THREAD, k); | |
1988 // Ensure it is initialized | |
1989 klass->initialize(CHECK_NH); | |
1990 return klass->allocate_instance_handle(CHECK_NH); | |
1991 } | |
1992 | |
1993 oop java_lang_reflect_Field::clazz(oop reflect) { | |
1994 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1995 return reflect->obj_field(clazz_offset); | |
1996 } | |
1997 | |
1998 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
1999 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2000 reflect->obj_field_put(clazz_offset, value); | |
2001 } | |
2002 | |
2003 oop java_lang_reflect_Field::name(oop field) { | |
2004 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2005 return field->obj_field(name_offset); | |
2006 } | |
2007 | |
2008 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2009 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2010 field->obj_field_put(name_offset, value); | |
2011 } | |
2012 | |
2013 oop java_lang_reflect_Field::type(oop field) { | |
2014 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2015 return field->obj_field(type_offset); | |
2016 } | |
2017 | |
2018 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2019 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2020 field->obj_field_put(type_offset, value); | |
2021 } | |
2022 | |
2023 int java_lang_reflect_Field::slot(oop reflect) { | |
2024 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2025 return reflect->int_field(slot_offset); | |
2026 } | |
2027 | |
2028 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2029 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2030 reflect->int_field_put(slot_offset, value); | |
2031 } | |
2032 | |
2033 int java_lang_reflect_Field::modifiers(oop field) { | |
2034 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2035 return field->int_field(modifiers_offset); | |
2036 } | |
2037 | |
2038 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2039 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2040 field->int_field_put(modifiers_offset, value); | |
2041 } | |
2042 | |
2043 bool java_lang_reflect_Field::has_signature_field() { | |
2044 return (signature_offset >= 0); | |
2045 } | |
2046 | |
2047 oop java_lang_reflect_Field::signature(oop field) { | |
2048 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2049 assert(has_signature_field(), "signature field must be present"); | |
2050 return field->obj_field(signature_offset); | |
2051 } | |
2052 | |
2053 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2054 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2055 assert(has_signature_field(), "signature field must be present"); | |
2056 field->obj_field_put(signature_offset, value); | |
2057 } | |
2058 | |
2059 bool java_lang_reflect_Field::has_annotations_field() { | |
2060 return (annotations_offset >= 0); | |
2061 } | |
2062 | |
2063 oop java_lang_reflect_Field::annotations(oop field) { | |
2064 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2065 assert(has_annotations_field(), "annotations field must be present"); | |
2066 return field->obj_field(annotations_offset); | |
2067 } | |
2068 | |
2069 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2070 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2071 assert(has_annotations_field(), "annotations field must be present"); | |
2072 field->obj_field_put(annotations_offset, value); | |
2073 } | |
2074 | |
2075 | |
2076 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 2077 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2078 // This null test can be removed post beta |
2079 if (k != NULL) { | |
132
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2080 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 2081 } |
2082 } | |
2083 | |
2084 | |
2085 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2086 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 2087 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2088 instanceKlassHandle klass (THREAD, k); |
2089 // Ensure it is initialized | |
2090 klass->initialize(CHECK_NH); | |
2091 return klass->allocate_instance_handle(CHECK_NH); | |
2092 } | |
2093 | |
2094 | |
2095 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
2096 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2097 return reflect->obj_field(_cp_oop_offset); | |
2098 } | |
2099 | |
2100 | |
2101 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2102 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2103 reflect->obj_field_put(_cp_oop_offset, value); | |
2104 } | |
2105 | |
2106 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2107 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2108 // This null test can be removed post beta |
2109 if (k != NULL) { | |
132
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2110 compute_offset(_base_offset, k, |
0 | 2111 vmSymbols::base_name(), vmSymbols::object_signature()); |
2112 } | |
2113 } | |
2114 | |
132
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2115 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2116 klassOop k = SystemDictionary::box_klass(type); |
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2117 if (k == NULL) return NULL; |
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2118 instanceKlassHandle h (THREAD, k); |
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2119 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2120 return h->allocate_instance(THREAD); |
0 | 2121 } |
2122 | |
2123 | |
2124 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2125 oop box = initialize_and_allocate(type, CHECK_0); |
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2126 if (box == NULL) return NULL; |
0 | 2127 switch (type) { |
2128 case T_BOOLEAN: | |
2129 box->bool_field_put(value_offset, value->z); | |
2130 break; | |
2131 case T_CHAR: | |
2132 box->char_field_put(value_offset, value->c); | |
2133 break; | |
2134 case T_FLOAT: | |
2135 box->float_field_put(value_offset, value->f); | |
2136 break; | |
2137 case T_DOUBLE: | |
165
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2138 box->double_field_put(long_value_offset, value->d); |
0 | 2139 break; |
2140 case T_BYTE: | |
2141 box->byte_field_put(value_offset, value->b); | |
2142 break; | |
2143 case T_SHORT: | |
2144 box->short_field_put(value_offset, value->s); | |
2145 break; | |
2146 case T_INT: | |
2147 box->int_field_put(value_offset, value->i); | |
2148 break; | |
2149 case T_LONG: | |
165
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2150 box->long_field_put(long_value_offset, value->j); |
0 | 2151 break; |
2152 default: | |
2153 return NULL; | |
2154 } | |
2155 return box; | |
2156 } | |
2157 | |
2158 | |
132
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2159 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2160 if (box == NULL) return T_ILLEGAL; |
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2161 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2162 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2163 return T_ILLEGAL; |
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2164 return type; |
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2165 } |
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2166 |
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2167 |
0 | 2168 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2169 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2170 switch (type) { |
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2171 case T_BOOLEAN: |
0 | 2172 value->z = box->bool_field(value_offset); |
132
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2173 break; |
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2174 case T_CHAR: |
0 | 2175 value->c = box->char_field(value_offset); |
132
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2176 break; |
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2177 case T_FLOAT: |
0 | 2178 value->f = box->float_field(value_offset); |
132
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2179 break; |
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2180 case T_DOUBLE: |
165
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2181 value->d = box->double_field(long_value_offset); |
132
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2182 break; |
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2183 case T_BYTE: |
0 | 2184 value->b = box->byte_field(value_offset); |
132
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2185 break; |
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2186 case T_SHORT: |
0 | 2187 value->s = box->short_field(value_offset); |
132
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2188 break; |
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2189 case T_INT: |
0 | 2190 value->i = box->int_field(value_offset); |
132
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2191 break; |
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2192 case T_LONG: |
165
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2193 value->j = box->long_field(long_value_offset); |
132
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2194 break; |
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2195 default: |
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2196 return T_ILLEGAL; |
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2197 } // end switch |
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2198 return type; |
0 | 2199 } |
2200 | |
2201 | |
2202 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2203 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2204 switch (type) { |
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2205 case T_BOOLEAN: |
0 | 2206 box->bool_field_put(value_offset, value->z); |
132
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2207 break; |
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2208 case T_CHAR: |
0 | 2209 box->char_field_put(value_offset, value->c); |
132
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2210 break; |
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2211 case T_FLOAT: |
0 | 2212 box->float_field_put(value_offset, value->f); |
132
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2213 break; |
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2214 case T_DOUBLE: |
165
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2215 box->double_field_put(long_value_offset, value->d); |
132
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2216 break; |
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2217 case T_BYTE: |
0 | 2218 box->byte_field_put(value_offset, value->b); |
132
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2219 break; |
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2220 case T_SHORT: |
0 | 2221 box->short_field_put(value_offset, value->s); |
132
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2222 break; |
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2223 case T_INT: |
0 | 2224 box->int_field_put(value_offset, value->i); |
132
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2225 break; |
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2226 case T_LONG: |
165
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2227 box->long_field_put(long_value_offset, value->j); |
132
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2228 break; |
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2229 default: |
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2230 return T_ILLEGAL; |
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2231 } // end switch |
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2232 return type; |
0 | 2233 } |
2234 | |
2235 | |
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2236 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
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2237 switch (type) { |
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2238 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
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2239 case T_CHAR: st->print("%d", value->c); break; |
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2240 case T_BYTE: st->print("%d", value->b); break; |
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2241 case T_SHORT: st->print("%d", value->s); break; |
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2242 case T_INT: st->print("%d", value->i); break; |
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2243 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
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2244 case T_FLOAT: st->print("%f", value->f); break; |
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2245 case T_DOUBLE: st->print("%lf", value->d); break; |
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2246 default: st->print("type %d?", type); break; |
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2247 } |
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2248 } |
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2249 |
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2250 |
0 | 2251 // Support for java_lang_ref_Reference |
113
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2252 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2253 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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2254 address addr = ik->static_field_addr(static_lock_offset); |
113
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2255 if (UseCompressedOops) { |
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2256 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2257 } else { |
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2258 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2259 } |
0 | 2260 } |
2261 | |
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2262 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2263 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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2264 address addr = ik->static_field_addr(static_pending_offset); |
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2265 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2266 return (HeapWord*)addr; |
0 | 2267 } |
2268 | |
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2269 oop java_lang_ref_Reference::pending_list() { |
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2270 char *addr = (char *)pending_list_addr(); |
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2271 if (UseCompressedOops) { |
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2272 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2273 } else { |
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2274 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2275 } |
0 | 2276 } |
2277 | |
2278 | |
2279 // Support for java_lang_ref_SoftReference | |
2280 | |
2281 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2282 return ref->long_field(timestamp_offset); | |
2283 } | |
2284 | |
2285 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2286 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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2287 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2288 return *offset; |
0 | 2289 } |
2290 | |
2291 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2292 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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2293 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2294 *offset = value; |
0 | 2295 } |
2296 | |
2297 | |
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2298 // Support for java_lang_invoke_MethodHandle |
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2299 |
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2300 int java_lang_invoke_MethodHandle::_type_offset; |
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2301 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
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2302 int java_lang_invoke_MethodHandle::_vmentry_offset; |
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2303 int java_lang_invoke_MethodHandle::_vmslots_offset; |
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2304 |
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2305 int java_lang_invoke_MemberName::_clazz_offset; |
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2306 int java_lang_invoke_MemberName::_name_offset; |
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2307 int java_lang_invoke_MemberName::_type_offset; |
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2308 int java_lang_invoke_MemberName::_flags_offset; |
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2309 int java_lang_invoke_MemberName::_vmtarget_offset; |
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2310 int java_lang_invoke_MemberName::_vmindex_offset; |
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2311 |
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2312 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
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2313 |
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2314 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
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2315 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
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2316 |
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2317 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2318 |
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2319 void java_lang_invoke_MethodHandle::compute_offsets() { |
710 | 2320 klassOop k = SystemDictionary::MethodHandle_klass(); |
2416
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2321 if (k != NULL && EnableInvokeDynamic) { |
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2322 bool allow_super = false; |
2357
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2323 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
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2324 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
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2325 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
710 | 2326 |
2327 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
2328 // It is optional pending experiments to keep or toss. | |
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2329 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
710 | 2330 } |
2331 } | |
2332 | |
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2333 void java_lang_invoke_MemberName::compute_offsets() { |
710 | 2334 klassOop k = SystemDictionary::MemberName_klass(); |
2416
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2335 if (k != NULL && EnableInvokeDynamic) { |
710 | 2336 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
2337 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2338 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2339 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2340 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
2341 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2342 } | |
2343 } | |
2344 | |
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2345 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2346 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2416
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2347 if (k != NULL && EnableInvokeDynamic) { |
710 | 2348 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); |
2349 } | |
2350 } | |
2351 | |
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2352 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2353 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
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2354 if (k != NULL && EnableInvokeDynamic) { |
710 | 2355 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
2356 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2357 } | |
2358 } | |
2359 | |
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2360 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2361 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
2416
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2362 if (k != NULL && EnableInvokeDynamic) { |
710 | 2363 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
2364 } | |
2365 } | |
2366 | |
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2367 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2368 return mh->obj_field(_type_offset); |
2369 } | |
2370 | |
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2371 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2372 mh->obj_field_put(_type_offset, mtype); |
2373 } | |
2374 | |
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2375 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2376 int vmslots_offset = _vmslots_offset; |
2377 if (vmslots_offset != 0) { | |
2378 #ifdef ASSERT | |
2379 int x = mh->int_field(vmslots_offset); | |
2380 int y = compute_vmslots(mh); | |
2381 assert(x == y, "correct hoisted value"); | |
2382 #endif | |
2383 return mh->int_field(vmslots_offset); | |
2384 } else { | |
2385 return compute_vmslots(mh); | |
2386 } | |
2387 } | |
2388 | |
2389 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
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2390 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
710 | 2391 int vmslots_offset = _vmslots_offset; |
2392 if (vmslots_offset != 0) { | |
2393 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
2394 } | |
2395 } | |
2396 | |
2397 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2398 // required to carry the arguments of this MH | |
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2399 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
710 | 2400 oop mtype = type(mh); |
2401 if (mtype == NULL) return 0; // Java code would get NPE | |
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2402 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2403 if (form == NULL) return 0; // Java code would get NPE |
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2404 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2405 } |
2406 | |
2407 // fetch the low-level entry point for this mh | |
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2408 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2409 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2410 } | |
2411 | |
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2412 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2413 assert(_vmentry_offset != 0, "must be present"); |
2414 | |
2415 // This is always the final step that initializes a valid method handle: | |
2416 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2417 | |
2418 // There should be enough memory barriers on exit from native methods | |
2419 // to ensure that the MH is fully initialized to all threads before | |
2420 // Java code can publish it in global data structures. | |
2421 // But just in case, we use release_address_field_put. | |
2422 } | |
2423 | |
2424 /// MemberName accessors | |
2425 | |
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2426 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2427 assert(is_instance(mname), "wrong type"); |
2428 return mname->obj_field(_clazz_offset); | |
2429 } | |
2430 | |
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2431 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2432 assert(is_instance(mname), "wrong type"); |
2433 mname->obj_field_put(_clazz_offset, clazz); | |
2434 } | |
2435 | |
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2436 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2437 assert(is_instance(mname), "wrong type"); |
2438 return mname->obj_field(_name_offset); | |
2439 } | |
2440 | |
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2441 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2442 assert(is_instance(mname), "wrong type"); |
2443 mname->obj_field_put(_name_offset, name); | |
2444 } | |
2445 | |
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2446 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2447 assert(is_instance(mname), "wrong type"); |
2448 return mname->obj_field(_type_offset); | |
2449 } | |
2450 | |
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|
2451 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2452 assert(is_instance(mname), "wrong type"); |
2453 mname->obj_field_put(_type_offset, type); | |
2454 } | |
2455 | |
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changeset
|
2456 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2457 assert(is_instance(mname), "wrong type"); |
2458 return mname->int_field(_flags_offset); | |
2459 } | |
2460 | |
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changeset
|
2461 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2462 assert(is_instance(mname), "wrong type"); |
2463 mname->int_field_put(_flags_offset, flags); | |
2464 } | |
2465 | |
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changeset
|
2466 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2467 assert(is_instance(mname), "wrong type"); |
2468 return mname->obj_field(_vmtarget_offset); | |
2469 } | |
2470 | |
2357
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changeset
|
2471 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2472 assert(is_instance(mname), "wrong type"); |
2473 mname->obj_field_put(_vmtarget_offset, ref); | |
2474 } | |
2475 | |
2357
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|
2476 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2477 assert(is_instance(mname), "wrong type"); |
2478 return mname->int_field(_vmindex_offset); | |
2479 } | |
2480 | |
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|
2481 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2482 assert(is_instance(mname), "wrong type"); |
2483 mname->int_field_put(_vmindex_offset, index); | |
2484 } | |
2485 | |
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|
2486 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2487 assert(is_instance(mh), "MH only"); |
2488 return mh->obj_field(_vmtarget_offset); | |
2489 } | |
2490 | |
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|
2491 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2492 assert(is_instance(mh), "MH only"); |
2493 mh->obj_field_put(_vmtarget_offset, ref); | |
2494 } | |
2495 | |
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|
2496 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2497 assert(is_instance(mh), "DMH only"); |
2498 return mh->int_field(_vmindex_offset); | |
2499 } | |
2500 | |
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|
2501 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2502 assert(is_instance(mh), "DMH only"); |
2503 mh->int_field_put(_vmindex_offset, index); | |
2504 } | |
2505 | |
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|
2506 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2507 assert(is_instance(mh), "BMH only"); |
2508 return mh->int_field(_vmargslot_offset); | |
2509 } | |
2510 | |
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|
2511 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2512 assert(is_instance(mh), "BMH only"); |
2513 return mh->obj_field(_argument_offset); | |
2514 } | |
2515 | |
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|
2516 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2517 assert(is_instance(mh), "AMH only"); |
2518 return mh->int_field(_conversion_offset); | |
2519 } | |
2520 | |
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|
2521 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2522 assert(is_instance(mh), "AMH only"); |
2523 mh->int_field_put(_conversion_offset, conv); | |
2524 } | |
2525 | |
2526 | |
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|
2527 // Support for java_lang_invoke_MethodType |
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|
2528 |
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|
2529 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2530 int java_lang_invoke_MethodType::_ptypes_offset; |
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|
2531 int java_lang_invoke_MethodType::_form_offset; |
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|
2532 |
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|
2533 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2534 klassOop k = SystemDictionary::MethodType_klass(); |
2535 if (k != NULL) { | |
2536 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2537 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
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2538 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2539 } |
2540 } | |
2541 | |
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|
2542 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2543 st->print("("); |
2544 objArrayOop pts = ptypes(mt); | |
2545 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2546 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2547 } | |
2548 st->print(")"); | |
2549 java_lang_Class::print_signature(rtype(mt), st); | |
2550 } | |
2551 | |
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|
2552 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2553 ResourceMark rm; |
2554 stringStream buffer(128); | |
2555 print_signature(mt, &buffer); | |
2556 const char* sigstr = buffer.base(); | |
2557 int siglen = (int) buffer.size(); | |
2177
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diff
changeset
|
2558 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2559 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2560 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
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diff
changeset
|
2561 } else { |
3582bf76420e
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diff
changeset
|
2562 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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diff
changeset
|
2563 } |
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diff
changeset
|
2564 return name; |
710 | 2565 } |
2566 | |
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|
2567 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2568 assert(is_instance(mt), "must be a MethodType"); |
2569 return mt->obj_field(_rtype_offset); | |
2570 } | |
2571 | |
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|
2572 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2573 assert(is_instance(mt), "must be a MethodType"); |
2574 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2575 } | |
2576 | |
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|
2577 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2578 assert(is_instance(mt), "must be a MethodType"); |
2579 return mt->obj_field(_form_offset); | |
2580 } | |
2581 | |
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|
2582 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2583 return ptypes(mt)->obj_at(idx); |
2584 } | |
2585 | |
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changeset
|
2586 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
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aa62b9388fce
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twisti
parents:
1096
diff
changeset
|
2587 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
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diff
changeset
|
2588 } |
aa62b9388fce
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diff
changeset
|
2589 |
710 | 2590 |
2591 | |
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|
2592 // Support for java_lang_invoke_MethodTypeForm |
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changeset
|
2593 |
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diff
changeset
|
2594 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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diff
changeset
|
2595 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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changeset
|
2596 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2597 |
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2356
diff
changeset
|
2598 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2599 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2600 if (k != NULL) { | |
2601 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
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diff
changeset
|
2602 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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parents:
2356
diff
changeset
|
2603 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2604 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
710 | 2605 } |
2606 } | |
2607 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2608 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2609 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2610 return mtform->int_field(_vmslots_offset); | |
2611 } | |
2612 | |
2357
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jrose
parents:
2356
diff
changeset
|
2613 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2614 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2615 return mtform->obj_field(_erasedType_offset); | |
2616 } | |
2617 | |
2357
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jrose
parents:
2356
diff
changeset
|
2618 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2619 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2620 return mtform->obj_field(_genericInvoker_offset); |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2621 } |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2622 |
710 | 2623 |
2357
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jrose
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2356
diff
changeset
|
2624 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2625 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2626 int java_lang_invoke_CallSite::_target_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2627 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2628 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2629 if (!EnableInvokeDynamic) return; |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2630 klassOop k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2631 if (k != NULL) { |
2357
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jrose
parents:
2356
diff
changeset
|
2632 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2633 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2634 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2635 |
2357
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2356
diff
changeset
|
2636 oop java_lang_invoke_CallSite::target(oop site) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2637 return site->obj_field(_target_offset); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2638 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2639 |
2357
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jrose
parents:
2356
diff
changeset
|
2640 void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2641 site->obj_field_put(_target_offset, target); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2642 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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710
diff
changeset
|
2643 |
710 | 2644 |
0 | 2645 // Support for java_security_AccessControlContext |
2646 | |
2647 int java_security_AccessControlContext::_context_offset = 0; | |
2648 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2649 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2650 | |
2651 void java_security_AccessControlContext::compute_offsets() { | |
2652 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2653 fieldDescriptor fd; | |
2654 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2655 | |
2656 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2657 fatal("Invalid layout of java.security.AccessControlContext"); | |
2658 } | |
2659 _context_offset = fd.offset(); | |
2660 | |
2661 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2662 fatal("Invalid layout of java.security.AccessControlContext"); | |
2663 } | |
2664 _privilegedContext_offset = fd.offset(); | |
2665 | |
2666 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2667 fatal("Invalid layout of java.security.AccessControlContext"); | |
2668 } | |
2669 _isPrivileged_offset = fd.offset(); | |
2670 } | |
2671 | |
2672 | |
2673 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2674 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2675 // Ensure klass is initialized | |
2676 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2677 // Allocate result | |
2678 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2679 // Fill in values | |
2680 result->obj_field_put(_context_offset, context()); | |
2681 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2682 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2683 return result; | |
2684 } | |
2685 | |
2686 | |
2687 // Support for java_lang_ClassLoader | |
2688 | |
2689 oop java_lang_ClassLoader::parent(oop loader) { | |
2690 assert(loader->is_oop(), "loader must be oop"); | |
2691 return loader->obj_field(parent_offset); | |
2692 } | |
2693 | |
2694 | |
2695 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
2696 // Fix for 4474172; see evaluation for more details | |
2697 loader = non_reflection_class_loader(loader); | |
2698 | |
2699 oop cl = SystemDictionary::java_system_loader(); | |
2700 while(cl != NULL) { | |
2701 if (cl == loader) return true; | |
2702 cl = parent(cl); | |
2703 } | |
2704 return false; | |
2705 } | |
2706 | |
2707 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2708 if (loader != NULL) { | |
2709 // See whether this is one of the class loaders associated with | |
2710 // the generated bytecodes for reflection, and if so, "magically" | |
2711 // delegate to its parent to prevent class loading from occurring | |
2712 // in places where applications using reflection didn't expect it. | |
1142 | 2713 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2714 // This might be null in non-1.4 JDKs |
2715 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2716 return parent(loader); | |
2717 } | |
2718 } | |
2719 return loader; | |
2720 } | |
2721 | |
2722 | |
2723 // Support for java_lang_System | |
2724 int java_lang_System::in_offset_in_bytes() { | |
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2725 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2726 } |
2727 | |
2728 | |
2729 int java_lang_System::out_offset_in_bytes() { | |
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2730 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2731 } |
2732 | |
2733 | |
2734 int java_lang_System::err_offset_in_bytes() { | |
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2735 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2736 } |
2737 | |
2738 | |
2739 | |
2740 int java_lang_String::value_offset; | |
2741 int java_lang_String::offset_offset; | |
2742 int java_lang_String::count_offset; | |
2743 int java_lang_String::hash_offset; | |
2744 int java_lang_Class::klass_offset; | |
2745 int java_lang_Class::array_klass_offset; | |
2746 int java_lang_Class::resolved_constructor_offset; | |
2747 int java_lang_Class::number_of_fake_oop_fields; | |
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2748 int java_lang_Class::oop_size_offset; |
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2749 int java_lang_Class::static_oop_field_count_offset; |
0 | 2750 int java_lang_Throwable::backtrace_offset; |
2751 int java_lang_Throwable::detailMessage_offset; | |
2752 int java_lang_Throwable::cause_offset; | |
2753 int java_lang_Throwable::stackTrace_offset; | |
2754 int java_lang_reflect_AccessibleObject::override_offset; | |
2755 int java_lang_reflect_Method::clazz_offset; | |
2756 int java_lang_reflect_Method::name_offset; | |
2757 int java_lang_reflect_Method::returnType_offset; | |
2758 int java_lang_reflect_Method::parameterTypes_offset; | |
2759 int java_lang_reflect_Method::exceptionTypes_offset; | |
2760 int java_lang_reflect_Method::slot_offset; | |
2761 int java_lang_reflect_Method::modifiers_offset; | |
2762 int java_lang_reflect_Method::signature_offset; | |
2763 int java_lang_reflect_Method::annotations_offset; | |
2764 int java_lang_reflect_Method::parameter_annotations_offset; | |
2765 int java_lang_reflect_Method::annotation_default_offset; | |
2766 int java_lang_reflect_Constructor::clazz_offset; | |
2767 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2768 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2769 int java_lang_reflect_Constructor::slot_offset; | |
2770 int java_lang_reflect_Constructor::modifiers_offset; | |
2771 int java_lang_reflect_Constructor::signature_offset; | |
2772 int java_lang_reflect_Constructor::annotations_offset; | |
2773 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2774 int java_lang_reflect_Field::clazz_offset; | |
2775 int java_lang_reflect_Field::name_offset; | |
2776 int java_lang_reflect_Field::type_offset; | |
2777 int java_lang_reflect_Field::slot_offset; | |
2778 int java_lang_reflect_Field::modifiers_offset; | |
2779 int java_lang_reflect_Field::signature_offset; | |
2780 int java_lang_reflect_Field::annotations_offset; | |
2781 int java_lang_boxing_object::value_offset; | |
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2782 int java_lang_boxing_object::long_value_offset; |
0 | 2783 int java_lang_ref_Reference::referent_offset; |
2784 int java_lang_ref_Reference::queue_offset; | |
2785 int java_lang_ref_Reference::next_offset; | |
2786 int java_lang_ref_Reference::discovered_offset; | |
2787 int java_lang_ref_Reference::static_lock_offset; | |
2788 int java_lang_ref_Reference::static_pending_offset; | |
2789 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2790 int java_lang_ref_SoftReference::timestamp_offset; | |
2791 int java_lang_ref_SoftReference::static_clock_offset; | |
2792 int java_lang_ClassLoader::parent_offset; | |
2793 int java_lang_System::static_in_offset; | |
2794 int java_lang_System::static_out_offset; | |
2795 int java_lang_System::static_err_offset; | |
2796 int java_lang_StackTraceElement::declaringClass_offset; | |
2797 int java_lang_StackTraceElement::methodName_offset; | |
2798 int java_lang_StackTraceElement::fileName_offset; | |
2799 int java_lang_StackTraceElement::lineNumber_offset; | |
2800 int java_lang_AssertionStatusDirectives::classes_offset; | |
2801 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2802 int java_lang_AssertionStatusDirectives::packages_offset; | |
2803 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2804 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2805 int java_nio_Buffer::_limit_offset; | |
2806 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2807 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2808 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2809 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2810 | |
2811 | |
2812 // Support for java_lang_StackTraceElement | |
2813 | |
2814 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2815 element->obj_field_put(fileName_offset, value); | |
2816 } | |
2817 | |
2818 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2819 element->obj_field_put(declaringClass_offset, value); | |
2820 } | |
2821 | |
2822 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2823 element->obj_field_put(methodName_offset, value); | |
2824 } | |
2825 | |
2826 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2827 element->int_field_put(lineNumber_offset, value); | |
2828 } | |
2829 | |
2830 | |
2831 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2832 | |
2833 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2834 o->obj_field_put(classes_offset, val); | |
2835 } | |
2836 | |
2837 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2838 o->obj_field_put(classEnabled_offset, val); | |
2839 } | |
2840 | |
2841 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2842 o->obj_field_put(packages_offset, val); | |
2843 } | |
2844 | |
2845 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2846 o->obj_field_put(packageEnabled_offset, val); | |
2847 } | |
2848 | |
2849 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2850 o->bool_field_put(deflt_offset, val); | |
2851 } | |
2852 | |
2853 | |
2854 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2855 int java_nio_Buffer::limit_offset() { | |
2856 return _limit_offset; | |
2857 } | |
2858 | |
2859 | |
2860 void java_nio_Buffer::compute_offsets() { | |
2861 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
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2862 assert(k != NULL, "must be loaded in 1.4+"); |
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2863 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2864 } |
2865 | |
2866 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2867 int sun_misc_AtomicLongCSImpl::value_offset() { | |
2868 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
2869 return _value_offset; | |
2870 } | |
2871 | |
2872 | |
2873 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
2874 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
2875 // If this class is not present, its value field offset won't be referenced. | |
2876 if (k != NULL) { | |
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2877 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2878 } |
2879 } | |
2880 | |
2881 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2882 if (_owner_offset != 0) return; | |
2883 | |
2884 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2885 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2886 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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2887 compute_offset(_owner_offset, k, |
0 | 2888 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2889 } | |
2890 | |
2891 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2892 assert(_owner_offset != 0, "Must be initialized"); | |
2893 return obj->obj_field(_owner_offset); | |
2894 } | |
2895 | |
2896 // Compute hard-coded offsets | |
2897 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2898 // are not available to determine the offset_of_static_fields. | |
2899 void JavaClasses::compute_hard_coded_offsets() { | |
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2900 const int x = heapOopSize; |
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2901 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2902 |
2903 // Do the String Class | |
2904 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2905 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2906 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2907 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2908 | |
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2909 { |
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2910 // Do the Class Class |
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2911 int offset = header; |
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2912 java_lang_Class::oop_size_offset = header; |
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2913 offset += BytesPerInt; |
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2914 java_lang_Class::static_oop_field_count_offset = offset; |
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2915 offset = align_size_up(offset + BytesPerInt, x); |
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2916 java_lang_Class::klass_offset = offset; |
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2917 offset += x; |
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2918 java_lang_Class::array_klass_offset = offset; |
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2919 offset += x; |
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2920 java_lang_Class::resolved_constructor_offset = offset; |
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2921 } |
0 | 2922 |
2923 // This is NOT an offset | |
2924 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
2925 | |
2926 // Throwable Class | |
2927 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2928 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2929 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2930 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
2931 | |
2932 // java_lang_boxing_object | |
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2933 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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2934 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 2935 |
2936 // java_lang_ref_Reference: | |
2937 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
2938 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
2939 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
2940 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
2941 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
2942 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
2943 // Artificial fields for java_lang_ref_Reference | |
2944 // The first field is for the discovered field added in 1.4 | |
2945 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
2946 | |
2947 // java_lang_ref_SoftReference Class | |
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2948 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 2949 // Don't multiply static fields because they are always in wordSize units |
2950 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
2951 | |
2952 // java_lang_ClassLoader | |
2953 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
2954 | |
2955 // java_lang_System | |
2956 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
2957 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
2958 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
2959 | |
2960 // java_lang_StackTraceElement | |
2961 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
2962 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
2963 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
2964 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
2965 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
2966 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
2967 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
2968 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
2969 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
2970 | |
2971 } | |
2972 | |
2973 | |
2974 // Compute non-hard-coded field offsets of all the classes in this file | |
2975 void JavaClasses::compute_offsets() { | |
2976 | |
2977 java_lang_Class::compute_offsets(); | |
2978 java_lang_Thread::compute_offsets(); | |
2979 java_lang_ThreadGroup::compute_offsets(); | |
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2980 if (EnableInvokeDynamic) { |
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2981 java_lang_invoke_MethodHandle::compute_offsets(); |
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2982 java_lang_invoke_MemberName::compute_offsets(); |
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2983 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
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2984 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
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2985 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
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2986 java_lang_invoke_MethodType::compute_offsets(); |
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2987 java_lang_invoke_MethodTypeForm::compute_offsets(); |
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2988 java_lang_invoke_CallSite::compute_offsets(); |
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2989 } |
0 | 2990 java_security_AccessControlContext::compute_offsets(); |
2991 // Initialize reflection classes. The layouts of these classes | |
2992 // changed with the new reflection implementation in JDK 1.4, and | |
2993 // since the Universe doesn't know what JDK version it is until this | |
2994 // point we defer computation of these offsets until now. | |
2995 java_lang_reflect_AccessibleObject::compute_offsets(); | |
2996 java_lang_reflect_Method::compute_offsets(); | |
2997 java_lang_reflect_Constructor::compute_offsets(); | |
2998 java_lang_reflect_Field::compute_offsets(); | |
2999 if (JDK_Version::is_gte_jdk14x_version()) { | |
3000 java_nio_Buffer::compute_offsets(); | |
3001 } | |
3002 if (JDK_Version::is_gte_jdk15x_version()) { | |
3003 sun_reflect_ConstantPool::compute_offsets(); | |
3004 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3005 } | |
3006 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 3007 |
3008 // generated interpreter code wants to know about the offsets we just computed: | |
3009 AbstractAssembler::update_delayed_values(); | |
0 | 3010 } |
3011 | |
3012 #ifndef PRODUCT | |
3013 | |
3014 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3015 // against changes in the class files | |
3016 | |
3017 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3018 EXCEPTION_MARK; | |
3019 fieldDescriptor fd; | |
2177
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|
3020 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3021 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3022 instanceKlassHandle h_klass (THREAD, k); | |
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3023 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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diff
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|
3024 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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|
3025 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3026 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3027 return false; | |
3028 } | |
3029 if (fd.is_static()) { | |
3030 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3031 return false; | |
3032 } | |
3033 if (fd.offset() == hardcoded_offset ) { | |
3034 return true; | |
3035 } else { | |
3036 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3037 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3038 return false; | |
3039 } | |
3040 } | |
3041 | |
3042 | |
3043 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3044 EXCEPTION_MARK; | |
3045 fieldDescriptor fd; | |
2177
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diff
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3046 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3047 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3048 instanceKlassHandle h_klass (THREAD, k); | |
2177
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3049 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3050 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3051 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3052 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3053 return false; | |
3054 } | |
3055 if (!fd.is_static()) { | |
3056 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3057 return false; | |
3058 } | |
2376
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parents:
2357
diff
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|
3059 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
0 | 3060 return true; |
3061 } else { | |
2376
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3062 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - instanceMirrorKlass::offset_of_static_fields()); |
0 | 3063 return false; |
3064 } | |
3065 } | |
3066 | |
3067 | |
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3068 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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3069 EXCEPTION_MARK; |
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3070 fieldDescriptor fd; |
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3071 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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3072 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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3073 instanceKlassHandle h_klass (THREAD, k); |
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3074 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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|
3075 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3076 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
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3077 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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3078 return false; |
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|
3079 } |
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3080 if (!fd.is_static() || !fd.has_initial_value()) { |
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3081 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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3082 return false; |
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|
3083 } |
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3084 if (!fd.initial_value_tag().is_int()) { |
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3085 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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3086 return false; |
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|
3087 } |
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3088 jint field_value = fd.int_initial_value(); |
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3089 if (field_value == hardcoded_constant) { |
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3090 return true; |
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|
3091 } else { |
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|
3092 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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|
3093 return false; |
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|
3094 } |
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|
3095 } |
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|
3096 |
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3097 |
0 | 3098 // Check the hard-coded field offsets of all the classes in this file |
3099 | |
3100 void JavaClasses::check_offsets() { | |
3101 bool valid = true; | |
3102 | |
3103 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3104 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3105 | |
165
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132
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3106 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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3107 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3108 |
0 | 3109 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3110 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3111 | |
132
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3112 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3113 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3114 |
0 | 3115 // java.lang.String |
3116 | |
3117 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3118 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3119 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3120 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3121 | |
3122 // java.lang.Class | |
3123 | |
3124 // Fake fields | |
3125 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3126 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3127 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3128 | |
3129 // java.lang.Throwable | |
3130 | |
3131 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3132 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3133 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3134 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3135 | |
3136 // Boxed primitive objects (java_lang_boxing_object) | |
3137 | |
3138 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3139 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3140 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
165
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3141 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3142 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3143 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3144 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
165
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|
3145 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3146 |
3147 // java.lang.ClassLoader | |
3148 | |
3149 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3150 | |
3151 // java.lang.System | |
3152 | |
3153 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3154 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3155 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3156 | |
3157 // java.lang.StackTraceElement | |
3158 | |
3159 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3160 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3161 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3162 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3163 | |
3164 // java.lang.ref.Reference | |
3165 | |
3166 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3167 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3168 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3169 // Fake field | |
3170 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3171 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3172 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3173 | |
3174 // java.lang.ref.SoftReference | |
3175 | |
3176 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3177 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3178 | |
3179 // java.lang.AssertionStatusDirectives | |
3180 // | |
3181 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3182 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3183 // into merlin "for some time." Without it, the vm will fail with early | |
3184 // merlin builds. | |
3185 | |
3186 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3187 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3188 const char* sig = "[Ljava/lang/String;"; | |
3189 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3190 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3191 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3192 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3193 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3194 } | |
3195 | |
3196 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3197 } | |
3198 | |
3199 #endif // PRODUCT | |
3200 | |
3201 void javaClasses_init() { | |
3202 JavaClasses::compute_offsets(); | |
3203 JavaClasses::check_offsets(); | |
3204 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3205 } |