Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 2458:98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
Reviewed-by: kvn, iveresov
author | never |
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date | Wed, 06 Apr 2011 16:02:50 -0700 |
parents | 352622fd140a |
children | ed69575596ac |
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 static bool find_hacked_field(instanceKlass* ik, |
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71 Symbol* name_symbol, Symbol* signature_symbol, |
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72 fieldDescriptor* fd, |
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73 bool allow_super = false) { |
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74 bool found = find_field(ik, name_symbol, signature_symbol, fd, allow_super); |
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75 if (!found && AllowTransitionalJSR292) { |
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76 Symbol* backup_sig = SystemDictionary::find_backup_signature(signature_symbol); |
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77 if (backup_sig != NULL) { |
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78 found = find_field(ik, name_symbol, backup_sig, fd, allow_super); |
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79 if (TraceMethodHandles) { |
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80 ResourceMark rm; |
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81 tty->print_cr("MethodHandles: %s.%s: backup for %s => %s%s", |
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82 ik->name()->as_C_string(), name_symbol->as_C_string(), |
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83 signature_symbol->as_C_string(), backup_sig->as_C_string(), |
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84 (found ? "" : " (NOT FOUND)")); |
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85 } |
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86 } |
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87 } |
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88 return found; |
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89 } |
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90 #define find_field find_hacked_field /* remove after AllowTransitionalJSR292 */ |
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91 |
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92 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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93 static void |
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94 compute_offset(int &dest_offset, |
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95 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 96 bool allow_super = false) { |
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97 fieldDescriptor fd; |
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98 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 99 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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100 ResourceMark rm; |
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101 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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102 fatal("Invalid layout of preloaded class"); |
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103 } |
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104 dest_offset = fd.offset(); |
0 | 105 } |
106 | |
107 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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108 static void |
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109 compute_optional_offset(int& dest_offset, |
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110 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 111 bool allow_super = false) { |
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112 fieldDescriptor fd; |
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113 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 114 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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115 dest_offset = fd.offset(); |
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116 } |
0 | 117 } |
118 | |
710 | 119 |
0 | 120 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
121 // Create the String object first, so there's a chance that the String | |
122 // and the char array it points to end up in the same cache line. | |
123 oop obj; | |
124 if (tenured) { | |
1142 | 125 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 126 } else { |
1142 | 127 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 128 } |
129 | |
130 // Create the char array. The String object must be handlized here | |
131 // because GC can happen as a result of the allocation attempt. | |
132 Handle h_obj(THREAD, obj); | |
133 typeArrayOop buffer; | |
134 if (tenured) { | |
135 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
136 } else { | |
137 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
138 } | |
139 | |
140 // Point the String at the char array | |
141 obj = h_obj(); | |
142 set_value(obj, buffer); | |
143 // No need to zero the offset, allocation zero'ed the entire String object | |
144 assert(offset(obj) == 0, "initial String offset should be zero"); | |
145 //set_offset(obj, 0); | |
146 set_count(obj, length); | |
147 | |
148 return h_obj; | |
149 } | |
150 | |
151 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
152 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
153 typeArrayOop buffer = value(h_obj()); | |
154 for (int index = 0; index < length; index++) { | |
155 buffer->char_at_put(index, unicode[index]); | |
156 } | |
157 return h_obj; | |
158 } | |
159 | |
160 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
161 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
162 } | |
163 | |
164 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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165 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
0 | 166 } |
167 | |
168 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
169 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
170 return h_obj(); | |
171 } | |
172 | |
173 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
174 if (utf8_str == NULL) { | |
175 return Handle(); | |
176 } | |
177 int length = UTF8::unicode_length(utf8_str); | |
178 Handle h_obj = basic_create(length, false, CHECK_NH); | |
179 if (length > 0) { | |
180 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
181 } | |
182 return h_obj; | |
183 } | |
184 | |
185 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
186 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
187 return h_obj(); | |
188 } | |
189 | |
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190 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 191 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
192 Handle h_obj = basic_create(length, false, CHECK_NH); | |
193 if (length > 0) { | |
194 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
195 } | |
196 return h_obj; | |
197 } | |
198 | |
199 // Converts a C string to a Java String based on current encoding | |
200 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
201 assert(str != NULL, "bad arguments"); | |
202 | |
203 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
204 static to_java_string_fn_t _to_java_string_fn = NULL; | |
205 | |
206 if (_to_java_string_fn == NULL) { | |
207 void *lib_handle = os::native_java_library(); | |
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208 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 209 if (_to_java_string_fn == NULL) { |
210 fatal("NewStringPlatform missing"); | |
211 } | |
212 } | |
213 | |
214 jstring js = NULL; | |
215 { JavaThread* thread = (JavaThread*)THREAD; | |
216 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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217 HandleMark hm(thread); |
0 | 218 ThreadToNativeFromVM ttn(thread); |
219 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
220 } | |
221 return Handle(THREAD, JNIHandles::resolve(js)); | |
222 } | |
223 | |
22
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224 // Converts a Java String to a native C string that can be used for |
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225 // native OS calls. |
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226 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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227 |
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228 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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229 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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230 |
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231 if (_to_platform_string_fn == NULL) { |
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232 void *lib_handle = os::native_java_library(); |
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233 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
22
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234 if (_to_platform_string_fn == NULL) { |
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235 fatal("GetStringPlatformChars missing"); |
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236 } |
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237 } |
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238 |
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239 char *native_platform_string; |
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240 { JavaThread* thread = (JavaThread*)THREAD; |
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241 assert(thread->is_Java_thread(), "must be java thread"); |
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242 JNIEnv *env = thread->jni_environment(); |
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243 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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244 bool is_copy; |
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245 HandleMark hm(thread); |
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246 ThreadToNativeFromVM ttn(thread); |
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247 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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248 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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249 JNIHandles::destroy_local(js); |
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250 } |
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251 return native_platform_string; |
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252 } |
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253 |
0 | 254 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
255 oop obj = java_string(); | |
256 // Typical usage is to convert all '/' to '.' in string. | |
257 typeArrayOop value = java_lang_String::value(obj); | |
258 int offset = java_lang_String::offset(obj); | |
259 int length = java_lang_String::length(obj); | |
260 | |
261 // First check if any from_char exist | |
262 int index; // Declared outside, used later | |
263 for (index = 0; index < length; index++) { | |
264 if (value->char_at(index + offset) == from_char) { | |
265 break; | |
266 } | |
267 } | |
268 if (index == length) { | |
269 // No from_char, so do not copy. | |
270 return java_string; | |
271 } | |
272 | |
273 // Create new UNICODE buffer. Must handlize value because GC | |
274 // may happen during String and char array creation. | |
275 typeArrayHandle h_value(THREAD, value); | |
276 Handle string = basic_create(length, false, CHECK_NH); | |
277 | |
278 typeArrayOop from_buffer = h_value(); | |
279 typeArrayOop to_buffer = java_lang_String::value(string()); | |
280 | |
281 // Copy contents | |
282 for (index = 0; index < length; index++) { | |
283 jchar c = from_buffer->char_at(index + offset); | |
284 if (c == from_char) { | |
285 c = to_char; | |
286 } | |
287 to_buffer->char_at_put(index, c); | |
288 } | |
289 return string; | |
290 } | |
291 | |
292 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
293 typeArrayOop value = java_lang_String::value(java_string); | |
294 int offset = java_lang_String::offset(java_string); | |
295 length = java_lang_String::length(java_string); | |
296 | |
297 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
298 for (int index = 0; index < length; index++) { | |
299 result[index] = value->char_at(index + offset); | |
300 } | |
301 return result; | |
302 } | |
303 | |
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304 unsigned int java_lang_String::hash_string(oop java_string) { |
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305 typeArrayOop value = java_lang_String::value(java_string); |
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306 int offset = java_lang_String::offset(java_string); |
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307 int length = java_lang_String::length(java_string); |
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308 |
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309 if (length == 0) return 0; |
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310 return hash_string(value->char_at_addr(offset), length); |
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311 } |
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312 |
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313 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 314 oop obj = java_string(); |
315 typeArrayOop value = java_lang_String::value(obj); | |
316 int offset = java_lang_String::offset(obj); | |
317 int length = java_lang_String::length(obj); | |
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318 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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319 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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320 return sym; |
0 | 321 } |
322 | |
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323 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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324 typeArrayOop value = java_lang_String::value(java_string); |
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325 int offset = java_lang_String::offset(java_string); |
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326 int length = java_lang_String::length(java_string); |
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327 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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328 return SymbolTable::probe_unicode(base, length); |
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329 } |
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330 |
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331 |
0 | 332 int java_lang_String::utf8_length(oop java_string) { |
333 typeArrayOop value = java_lang_String::value(java_string); | |
334 int offset = java_lang_String::offset(java_string); | |
335 int length = java_lang_String::length(java_string); | |
336 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
337 return UNICODE::utf8_length(position, length); | |
338 } | |
339 | |
340 char* java_lang_String::as_utf8_string(oop java_string) { | |
341 typeArrayOop value = java_lang_String::value(java_string); | |
342 int offset = java_lang_String::offset(java_string); | |
343 int length = java_lang_String::length(java_string); | |
344 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
345 return UNICODE::as_utf8(position, length); | |
346 } | |
347 | |
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348 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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349 typeArrayOop value = java_lang_String::value(java_string); |
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350 int offset = java_lang_String::offset(java_string); |
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351 int length = java_lang_String::length(java_string); |
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352 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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353 return UNICODE::as_utf8(position, length, buf, buflen); |
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354 } |
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355 |
0 | 356 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
357 typeArrayOop value = java_lang_String::value(java_string); | |
358 int offset = java_lang_String::offset(java_string); | |
359 int length = java_lang_String::length(java_string); | |
360 assert(start + len <= length, "just checking"); | |
361 jchar* position = value->char_at_addr(offset + start); | |
362 return UNICODE::as_utf8(position, len); | |
363 } | |
364 | |
365 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
366 assert(SharedSkipVerify || | |
1142 | 367 java_string->klass() == SystemDictionary::String_klass(), |
0 | 368 "must be java_string"); |
369 typeArrayOop value = java_lang_String::value(java_string); | |
370 int offset = java_lang_String::offset(java_string); | |
371 int length = java_lang_String::length(java_string); | |
372 if (length != len) { | |
373 return false; | |
374 } | |
375 for (int i = 0; i < len; i++) { | |
376 if (value->char_at(i + offset) != chars[i]) { | |
377 return false; | |
378 } | |
379 } | |
380 return true; | |
381 } | |
382 | |
383 void java_lang_String::print(Handle java_string, outputStream* st) { | |
384 oop obj = java_string(); | |
1142 | 385 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 386 typeArrayOop value = java_lang_String::value(obj); |
387 int offset = java_lang_String::offset(obj); | |
388 int length = java_lang_String::length(obj); | |
389 | |
390 int end = MIN2(length, 100); | |
391 if (value == NULL) { | |
392 // This can happen if, e.g., printing a String | |
393 // object before its initializer has been called | |
394 st->print_cr("NULL"); | |
395 } else { | |
396 st->print("\""); | |
397 for (int index = 0; index < length; index++) { | |
398 st->print("%c", value->char_at(index + offset)); | |
399 } | |
400 st->print("\""); | |
401 } | |
402 } | |
403 | |
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404 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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405 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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406 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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407 if (fd->has_initial_value()) { |
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408 BasicType t = fd->field_type(); |
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409 switch (t) { |
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410 case T_BYTE: |
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411 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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412 break; |
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413 case T_BOOLEAN: |
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414 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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415 break; |
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416 case T_CHAR: |
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417 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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418 break; |
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419 case T_SHORT: |
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420 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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421 break; |
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422 case T_INT: |
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423 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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424 break; |
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425 case T_FLOAT: |
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426 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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427 break; |
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428 case T_DOUBLE: |
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429 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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430 break; |
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431 case T_LONG: |
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432 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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433 break; |
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434 case T_OBJECT: |
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435 { |
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436 #ifdef ASSERT |
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437 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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438 assert(fd->signature() == sym, "just checking"); |
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439 #endif |
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440 oop string = fd->string_initial_value(CHECK); |
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441 mirror()->obj_field_put(fd->offset(), string); |
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442 } |
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443 break; |
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444 default: |
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445 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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446 "Illegal ConstantValue attribute in class file"); |
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447 } |
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448 } |
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449 } |
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450 |
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451 |
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452 // During bootstrap, java.lang.Class wasn't loaded so static field |
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453 // offsets were computed without the size added it. Go back and |
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454 // update all the static field offsets to included the size. |
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455 static void fixup_static_field(fieldDescriptor* fd, TRAPS) { |
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456 if (fd->is_static()) { |
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457 int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields(); |
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458 typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields(); |
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459 fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset)); |
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460 fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset)); |
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461 } |
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462 } |
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463 |
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464 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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465 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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466 |
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467 if (k->oop_is_instance()) { |
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468 // Fixup the offsets |
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469 instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK); |
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470 } |
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471 create_mirror(k, CHECK); |
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472 } |
0 | 473 |
474 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
475 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
476 // Use this moment of initialization to cache modifier_flags also, | |
477 // to support Class.getModifiers(). Instance classes recalculate | |
478 // the cached flags after the class file is parsed, but before the | |
479 // class is put into the system dictionary. | |
480 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
481 k->set_modifier_flags(computed_modifiers); | |
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482 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
0 | 483 // Allocate mirror (java.lang.Class instance) |
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484 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
0 | 485 // Setup indirections |
486 mirror->obj_field_put(klass_offset, k()); | |
487 k->set_java_mirror(mirror()); | |
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488 |
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489 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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490 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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491 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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492 |
0 | 493 // It might also have a component mirror. This mirror must already exist. |
494 if (k->oop_is_javaArray()) { | |
495 Handle comp_mirror; | |
496 if (k->oop_is_typeArray()) { | |
497 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
498 comp_mirror = Universe::java_mirror(type); | |
499 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
500 } else if (k->oop_is_objArray()) { | |
501 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
502 if (element_klass != NULL | |
503 && (Klass::cast(element_klass)->oop_is_instance() || | |
504 Klass::cast(element_klass)->oop_is_javaArray())) { | |
505 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
506 assert(comp_mirror.not_null(), "must have element mirror"); | |
507 } | |
508 // else some object array internal to the VM, like systemObjArrayKlassObj | |
509 } | |
510 if (comp_mirror.not_null()) { | |
511 // Two-way link between the array klass and its component mirror: | |
512 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
513 set_array_klass(comp_mirror(), k->as_klassOop()); | |
514 } | |
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515 } else if (k->oop_is_instance()) { |
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516 // Initialize static fields |
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517 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 518 } |
519 return mirror(); | |
520 } else { | |
521 return NULL; | |
522 } | |
523 } | |
524 | |
525 | |
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526 |
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527 int java_lang_Class::oop_size(oop java_class) { |
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528 assert(oop_size_offset != 0, "must be set"); |
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529 return java_class->int_field(oop_size_offset); |
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530 } |
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531 void java_lang_Class::set_oop_size(oop java_class, int size) { |
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532 assert(oop_size_offset != 0, "must be set"); |
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533 java_class->int_field_put(oop_size_offset, size); |
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534 } |
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535 int java_lang_Class::static_oop_field_count(oop java_class) { |
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536 assert(static_oop_field_count_offset != 0, "must be set"); |
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537 return java_class->int_field(static_oop_field_count_offset); |
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538 } |
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539 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
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540 assert(static_oop_field_count_offset != 0, "must be set"); |
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541 java_class->int_field_put(static_oop_field_count_offset, size); |
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542 } |
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543 |
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544 |
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545 |
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546 |
0 | 547 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
548 // This should be improved by adding a field at the Java level or by | |
549 // introducing a new VM klass (see comment in ClassFileParser) | |
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550 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
0 | 551 if (type != T_VOID) { |
552 klassOop aklass = Universe::typeArrayKlassObj(type); | |
553 assert(aklass != NULL, "correct bootstrap"); | |
554 set_array_klass(java_class, aklass); | |
555 } | |
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556 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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557 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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558 java_lang_Class::set_static_oop_field_count(java_class, 0); |
0 | 559 return java_class; |
560 } | |
561 | |
562 | |
563 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
564 //%note memory_2 | |
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565 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 566 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
567 assert(k == NULL || k->is_klass(), "type check"); | |
568 return k; | |
569 } | |
570 | |
571 | |
665
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572 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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573 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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574 Symbol* name = NULL; |
665
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575 bool is_instance = false; |
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576 if (is_primitive(java_class)) { |
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577 name = vmSymbols::type_signature(primitive_type(java_class)); |
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578 } else { |
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579 klassOop k = as_klassOop(java_class); |
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580 is_instance = Klass::cast(k)->oop_is_instance(); |
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581 name = Klass::cast(k)->name(); |
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582 } |
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583 if (name == NULL) { |
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584 st->print("<null>"); |
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585 return; |
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586 } |
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587 if (is_instance) st->print("L"); |
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588 st->write((char*) name->base(), (int) name->utf8_length()); |
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589 if (is_instance) st->print(";"); |
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590 } |
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591 |
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592 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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593 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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594 Symbol* name; |
665
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595 if (is_primitive(java_class)) { |
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596 name = vmSymbols::type_signature(primitive_type(java_class)); |
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597 // Because this can create a new symbol, the caller has to decrement |
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598 // the refcount, so make adjustment here and below for symbols returned |
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599 // that are not created or incremented due to a successful lookup. |
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600 name->increment_refcount(); |
665
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601 } else { |
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602 klassOop k = as_klassOop(java_class); |
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603 if (!Klass::cast(k)->oop_is_instance()) { |
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604 name = Klass::cast(k)->name(); |
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605 name->increment_refcount(); |
665
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606 } else { |
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607 ResourceMark rm; |
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608 const char* sigstr = Klass::cast(k)->signature_name(); |
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609 int siglen = (int) strlen(sigstr); |
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610 if (!intern_if_not_found) { |
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611 name = SymbolTable::probe(sigstr, siglen); |
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612 } else { |
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613 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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614 } |
665
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615 } |
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616 } |
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617 return name; |
665
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618 } |
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619 |
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620 |
0 | 621 klassOop java_lang_Class::array_klass(oop java_class) { |
622 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
623 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
624 return k; | |
625 } | |
626 | |
627 | |
628 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
629 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
630 java_class->obj_field_put(array_klass_offset, klass); | |
631 } | |
632 | |
633 | |
634 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
635 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
636 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
637 return methodOop(constructor); | |
638 } | |
639 | |
640 | |
641 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
642 assert(constructor->is_method(), "should be method"); | |
643 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
644 } | |
645 | |
646 | |
647 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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648 // should assert: |
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649 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 650 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
651 return k == NULL; | |
652 } | |
653 | |
654 | |
655 BasicType java_lang_Class::primitive_type(oop java_class) { | |
656 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
657 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
658 BasicType type = T_VOID; | |
659 if (ak != NULL) { | |
660 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
661 type = arrayKlass::cast(ak)->element_type(); | |
662 } else { | |
663 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
664 } | |
665 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
666 return type; | |
667 } | |
668 | |
665
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669 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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670 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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671 if (is_primitive(java_class)) { |
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672 if (reference_klass != NULL) |
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673 (*reference_klass) = NULL; |
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674 return primitive_type(java_class); |
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675 } else { |
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676 if (reference_klass != NULL) |
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677 (*reference_klass) = as_klassOop(java_class); |
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678 return T_OBJECT; |
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679 } |
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680 } |
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681 |
0 | 682 |
683 oop java_lang_Class::primitive_mirror(BasicType t) { | |
684 oop mirror = Universe::java_mirror(t); | |
1142 | 685 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 686 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
687 return mirror; | |
688 } | |
689 | |
690 bool java_lang_Class::offsets_computed = false; | |
691 int java_lang_Class::classRedefinedCount_offset = -1; | |
514 | 692 int java_lang_Class::parallelCapable_offset = -1; |
0 | 693 |
694 void java_lang_Class::compute_offsets() { | |
695 assert(!offsets_computed, "offsets should be initialized only once"); | |
696 offsets_computed = true; | |
697 | |
1142 | 698 klassOop k = SystemDictionary::Class_klass(); |
0 | 699 // The classRedefinedCount field is only present starting in 1.5, |
700 // so don't go fatal. | |
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701 compute_optional_offset(classRedefinedCount_offset, |
0 | 702 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
514 | 703 |
704 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
1142 | 705 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
514 | 706 compute_optional_offset(parallelCapable_offset, |
707 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
708 } | |
709 | |
710 // For class loader classes, parallelCapable defined | |
711 // based on non-null field | |
712 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
713 bool java_lang_Class::parallelCapable(oop class_loader) { | |
714 if (!JDK_Version::is_gte_jdk17x_version() | |
715 || parallelCapable_offset == -1) { | |
716 // Default for backward compatibility is false | |
717 return false; | |
718 } | |
719 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
0 | 720 } |
721 | |
722 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
723 if (!JDK_Version::is_gte_jdk15x_version() | |
724 || classRedefinedCount_offset == -1) { | |
725 // The classRedefinedCount field is only present starting in 1.5. | |
726 // If we don't have an offset for it then just return -1 as a marker. | |
727 return -1; | |
728 } | |
729 | |
730 return the_class_mirror->int_field(classRedefinedCount_offset); | |
731 } | |
732 | |
733 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
734 if (!JDK_Version::is_gte_jdk15x_version() | |
735 || classRedefinedCount_offset == -1) { | |
736 // The classRedefinedCount field is only present starting in 1.5. | |
737 // If we don't have an offset for it then nothing to set. | |
738 return; | |
739 } | |
740 | |
741 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
742 } | |
743 | |
744 | |
745 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
746 // platform thread structure, and a eetop offset which was used for thread | |
747 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
748 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
749 // instead of the privateInfo_offset. | |
750 // | |
751 // Note: The stackSize field is only present starting in 1.4. | |
752 | |
753 int java_lang_Thread::_name_offset = 0; | |
754 int java_lang_Thread::_group_offset = 0; | |
755 int java_lang_Thread::_contextClassLoader_offset = 0; | |
756 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
757 int java_lang_Thread::_priority_offset = 0; | |
758 int java_lang_Thread::_eetop_offset = 0; | |
759 int java_lang_Thread::_daemon_offset = 0; | |
760 int java_lang_Thread::_stillborn_offset = 0; | |
761 int java_lang_Thread::_stackSize_offset = 0; | |
762 int java_lang_Thread::_tid_offset = 0; | |
763 int java_lang_Thread::_thread_status_offset = 0; | |
764 int java_lang_Thread::_park_blocker_offset = 0; | |
765 int java_lang_Thread::_park_event_offset = 0 ; | |
766 | |
767 | |
768 void java_lang_Thread::compute_offsets() { | |
769 assert(_group_offset == 0, "offsets should be initialized only once"); | |
770 | |
1142 | 771 klassOop k = SystemDictionary::Thread_klass(); |
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772 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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773 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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774 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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775 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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776 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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777 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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778 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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779 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 780 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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781 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 782 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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783 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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784 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 785 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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786 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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787 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 788 vmSymbols::long_signature()); |
789 } | |
790 | |
791 | |
792 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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793 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 794 } |
795 | |
796 | |
797 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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798 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 799 } |
800 | |
801 | |
802 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
803 oop name = java_thread->obj_field(_name_offset); | |
804 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
805 return typeArrayOop(name); | |
806 } | |
807 | |
808 | |
809 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
810 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
811 java_thread->obj_field_put(_name_offset, name); | |
812 } | |
813 | |
814 | |
815 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
816 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
817 } | |
818 | |
819 | |
820 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
821 java_thread->int_field_put(_priority_offset, priority); | |
822 } | |
823 | |
824 | |
825 oop java_lang_Thread::threadGroup(oop java_thread) { | |
826 return java_thread->obj_field(_group_offset); | |
827 } | |
828 | |
829 | |
830 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
831 return java_thread->bool_field(_stillborn_offset) != 0; | |
832 } | |
833 | |
834 | |
835 // We never have reason to turn the stillborn bit off | |
836 void java_lang_Thread::set_stillborn(oop java_thread) { | |
837 java_thread->bool_field_put(_stillborn_offset, true); | |
838 } | |
839 | |
840 | |
841 bool java_lang_Thread::is_alive(oop java_thread) { | |
842 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
843 return (thr != NULL); | |
844 } | |
845 | |
846 | |
847 bool java_lang_Thread::is_daemon(oop java_thread) { | |
848 return java_thread->bool_field(_daemon_offset) != 0; | |
849 } | |
850 | |
851 | |
852 void java_lang_Thread::set_daemon(oop java_thread) { | |
853 java_thread->bool_field_put(_daemon_offset, true); | |
854 } | |
855 | |
856 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
857 return java_thread->obj_field(_contextClassLoader_offset); | |
858 } | |
859 | |
860 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
861 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
862 } | |
863 | |
864 | |
865 jlong java_lang_Thread::stackSize(oop java_thread) { | |
866 // The stackSize field is only present starting in 1.4 | |
867 if (_stackSize_offset > 0) { | |
868 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
869 return java_thread->long_field(_stackSize_offset); | |
870 } else { | |
871 return 0; | |
872 } | |
873 } | |
874 | |
875 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
876 void java_lang_Thread::set_thread_status(oop java_thread, | |
877 java_lang_Thread::ThreadStatus status) { | |
878 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
879 // The threadStatus is only present starting in 1.5 | |
880 if (_thread_status_offset > 0) { | |
881 java_thread->int_field_put(_thread_status_offset, status); | |
882 } | |
883 } | |
884 | |
885 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
886 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
887 assert(Thread::current()->is_VM_thread() || | |
888 JavaThread::current()->thread_state() == _thread_in_vm, | |
889 "Java Thread is not running in vm"); | |
890 // The threadStatus is only present starting in 1.5 | |
891 if (_thread_status_offset > 0) { | |
892 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
893 } else { | |
894 // All we can easily figure out is if it is alive, but that is | |
895 // enough info for a valid unknown status. | |
896 // These aren't restricted to valid set ThreadStatus values, so | |
897 // use JVMTI values and cast. | |
898 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
899 if (thr == NULL) { | |
900 // the thread hasn't run yet or is in the process of exiting | |
901 return NEW; | |
902 } | |
903 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
904 } | |
905 } | |
906 | |
907 | |
908 jlong java_lang_Thread::thread_id(oop java_thread) { | |
909 // The thread ID field is only present starting in 1.5 | |
910 if (_tid_offset > 0) { | |
911 return java_thread->long_field(_tid_offset); | |
912 } else { | |
913 return 0; | |
914 } | |
915 } | |
916 | |
917 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 918 assert(JDK_Version::current().supports_thread_park_blocker() && |
919 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 920 |
921 if (_park_blocker_offset > 0) { | |
922 return java_thread->obj_field(_park_blocker_offset); | |
923 } | |
924 | |
925 return NULL; | |
926 } | |
927 | |
928 jlong java_lang_Thread::park_event(oop java_thread) { | |
929 if (_park_event_offset > 0) { | |
930 return java_thread->long_field(_park_event_offset); | |
931 } | |
932 return 0; | |
933 } | |
934 | |
935 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
936 if (_park_event_offset > 0) { | |
937 java_thread->long_field_put(_park_event_offset, ptr); | |
938 return true; | |
939 } | |
940 return false; | |
941 } | |
942 | |
943 | |
944 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
945 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
946 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
947 switch (status) { | |
948 case NEW : return "NEW"; | |
949 case RUNNABLE : return "RUNNABLE"; | |
950 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
951 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
952 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
953 case PARKED : return "WAITING (parking)"; | |
954 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
955 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
956 case TERMINATED : return "TERMINATED"; | |
957 default : return "UNKNOWN"; | |
958 }; | |
959 } | |
960 int java_lang_ThreadGroup::_parent_offset = 0; | |
961 int java_lang_ThreadGroup::_name_offset = 0; | |
962 int java_lang_ThreadGroup::_threads_offset = 0; | |
963 int java_lang_ThreadGroup::_groups_offset = 0; | |
964 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
965 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
966 int java_lang_ThreadGroup::_daemon_offset = 0; | |
967 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
968 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
969 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
970 | |
971 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
972 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
973 return java_thread_group->obj_field(_parent_offset); | |
974 } | |
975 | |
976 // ("name as oop" accessor is not necessary) | |
977 | |
978 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
979 oop name = java_thread_group->obj_field(_name_offset); | |
980 // ThreadGroup.name can be null | |
981 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
982 } | |
983 | |
984 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
985 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
986 return java_thread_group->int_field(_nthreads_offset); | |
987 } | |
988 | |
989 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
990 oop threads = java_thread_group->obj_field(_threads_offset); | |
991 assert(threads != NULL, "threadgroups should have threads"); | |
992 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
993 return objArrayOop(threads); | |
994 } | |
995 | |
996 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
997 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
998 return java_thread_group->int_field(_ngroups_offset); | |
999 } | |
1000 | |
1001 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1002 oop groups = java_thread_group->obj_field(_groups_offset); | |
1003 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1004 return objArrayOop(groups); | |
1005 } | |
1006 | |
1007 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1008 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1009 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1010 } | |
1011 | |
1012 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1013 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1014 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1015 } | |
1016 | |
1017 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1018 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1019 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1020 } | |
1021 | |
1022 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1023 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1024 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1025 } | |
1026 | |
1027 void java_lang_ThreadGroup::compute_offsets() { | |
1028 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1029 | |
1142 | 1030 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 1031 |
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1032 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1033 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1034 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1035 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1036 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1037 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1038 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1039 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1040 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1041 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1042 } |
1043 | |
1044 oop java_lang_Throwable::backtrace(oop throwable) { | |
1045 return throwable->obj_field_acquire(backtrace_offset); | |
1046 } | |
1047 | |
1048 | |
1049 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1050 throwable->release_obj_field_put(backtrace_offset, value); | |
1051 } | |
1052 | |
1053 | |
1054 oop java_lang_Throwable::message(oop throwable) { | |
1055 return throwable->obj_field(detailMessage_offset); | |
1056 } | |
1057 | |
1058 | |
1059 oop java_lang_Throwable::message(Handle throwable) { | |
1060 return throwable->obj_field(detailMessage_offset); | |
1061 } | |
1062 | |
1063 | |
1064 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1065 throwable->obj_field_put(detailMessage_offset, value); | |
1066 } | |
1067 | |
1068 | |
1069 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
1070 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1071 throwable->obj_field_put(stackTrace_offset, NULL); | |
1072 } | |
1073 | |
1074 | |
1075 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1076 ResourceMark rm; | |
1077 klassOop k = throwable->klass(); | |
1078 assert(k != NULL, "just checking"); | |
1079 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1080 oop msg = message(throwable); | |
1081 if (msg != NULL) { | |
1082 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1083 } | |
1084 } | |
1085 | |
1086 | |
1087 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1088 ResourceMark rm; | |
1089 klassOop k = throwable->klass(); | |
1090 assert(k != NULL, "just checking"); | |
1091 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1092 oop msg = message(throwable); | |
1093 if (msg != NULL) { | |
1094 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1095 } | |
1096 } | |
1097 | |
1098 // Print stack trace element to resource allocated buffer | |
1099 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
1100 // Get strings and string lengths | |
1101 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
1102 const char* klass_name = klass->external_name(); | |
1103 int buf_len = (int)strlen(klass_name); | |
1104 char* source_file_name; | |
1105 if (klass->source_file_name() == NULL) { | |
1106 source_file_name = NULL; | |
1107 } else { | |
1108 source_file_name = klass->source_file_name()->as_C_string(); | |
1109 buf_len += (int)strlen(source_file_name); | |
1110 } | |
1111 char* method_name = method->name()->as_C_string(); | |
1112 buf_len += (int)strlen(method_name); | |
1113 | |
1114 // Allocate temporary buffer with extra space for formatting and line number | |
1115 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1116 | |
1117 // Print stack trace line in buffer | |
1118 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1119 if (method->is_native()) { | |
1120 strcat(buf, "(Native Method)"); | |
1121 } else { | |
1122 int line_number = method->line_number_from_bci(bci); | |
1123 if (source_file_name != NULL && (line_number != -1)) { | |
1124 // Sourcename and linenumber | |
1125 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1126 } else if (source_file_name != NULL) { | |
1127 // Just sourcename | |
1128 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1129 } else { | |
1130 // Neither soucename and linenumber | |
1131 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1132 } | |
1133 nmethod* nm = method->code(); | |
1134 if (WizardMode && nm != NULL) { | |
513
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1135 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
0 | 1136 } |
1137 } | |
1138 | |
1139 return buf; | |
1140 } | |
1141 | |
1142 | |
1143 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1144 ResourceMark rm; | |
1145 char* buf = print_stack_element_to_buffer(method, bci); | |
1146 print_to_stream(stream, buf); | |
1147 } | |
1148 | |
1149 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1150 ResourceMark rm; | |
1151 char* buf = print_stack_element_to_buffer(method, bci); | |
1152 st->print_cr("%s", buf); | |
1153 } | |
1154 | |
1155 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1156 if (stream.is_null()) { | |
1157 tty->print_cr("%s", str); | |
1158 } else { | |
1159 EXCEPTION_MARK; | |
1160 JavaValue result(T_VOID); | |
1161 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1162 if (!HAS_PENDING_EXCEPTION) { | |
1163 JavaCalls::call_virtual(&result, | |
1164 stream, | |
1165 KlassHandle(THREAD, stream->klass()), | |
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1166 vmSymbols::println_name(), |
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1167 vmSymbols::char_array_void_signature(), |
0 | 1168 arg, |
1169 THREAD); | |
1170 } | |
1171 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1172 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1173 } | |
1174 | |
1175 } | |
1176 | |
1177 | |
1178 const char* java_lang_Throwable::no_stack_trace_message() { | |
1179 return "\t<<no stack trace available>>"; | |
1180 } | |
1181 | |
1182 | |
1183 // Currently used only for exceptions occurring during startup | |
1184 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1185 Thread *THREAD = Thread::current(); | |
1186 Handle h_throwable(THREAD, throwable); | |
1187 while (h_throwable.not_null()) { | |
1188 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1189 if (result.is_null()) { | |
1190 st->print_cr(no_stack_trace_message()); | |
1191 return; | |
1192 } | |
1193 | |
1194 while (result.not_null()) { | |
1195 objArrayHandle methods (THREAD, | |
1196 objArrayOop(result->obj_at(trace_methods_offset))); | |
1197 typeArrayHandle bcis (THREAD, | |
1198 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1199 | |
1200 if (methods.is_null() || bcis.is_null()) { | |
1201 st->print_cr(no_stack_trace_message()); | |
1202 return; | |
1203 } | |
1204 | |
1205 int length = methods()->length(); | |
1206 for (int index = 0; index < length; index++) { | |
1207 methodOop method = methodOop(methods()->obj_at(index)); | |
1208 if (method == NULL) goto handle_cause; | |
1209 int bci = bcis->ushort_at(index); | |
1210 print_stack_element(st, method, bci); | |
1211 } | |
1212 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1213 } | |
1214 handle_cause: | |
1215 { | |
1216 EXCEPTION_MARK; | |
1217 JavaValue result(T_OBJECT); | |
1218 JavaCalls::call_virtual(&result, | |
1219 h_throwable, | |
1220 KlassHandle(THREAD, h_throwable->klass()), | |
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1221 vmSymbols::getCause_name(), |
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1222 vmSymbols::void_throwable_signature(), |
0 | 1223 THREAD); |
1224 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1225 if (HAS_PENDING_EXCEPTION) { | |
1226 CLEAR_PENDING_EXCEPTION; | |
1227 h_throwable = Handle(); | |
1228 } else { | |
1229 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1230 if (h_throwable.not_null()) { | |
1231 st->print("Caused by: "); | |
1232 print(h_throwable, st); | |
1233 st->cr(); | |
1234 } | |
1235 } | |
1236 } | |
1237 } | |
1238 } | |
1239 | |
1240 | |
1241 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1242 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1243 Thread *thread = Thread::current(); | |
1244 Handle stream(thread, print_stream); | |
1245 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1246 if (result.is_null()) { | |
1247 print_to_stream(stream, no_stack_trace_message()); | |
1248 return; | |
1249 } | |
1250 | |
1251 while (result.not_null()) { | |
1252 objArrayHandle methods (thread, | |
1253 objArrayOop(result->obj_at(trace_methods_offset))); | |
1254 typeArrayHandle bcis (thread, | |
1255 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1256 | |
1257 if (methods.is_null() || bcis.is_null()) { | |
1258 print_to_stream(stream, no_stack_trace_message()); | |
1259 return; | |
1260 } | |
1261 | |
1262 int length = methods()->length(); | |
1263 for (int index = 0; index < length; index++) { | |
1264 methodOop method = methodOop(methods()->obj_at(index)); | |
1265 if (method == NULL) return; | |
1266 int bci = bcis->ushort_at(index); | |
1267 print_stack_element(stream, method, bci); | |
1268 } | |
1269 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1270 } | |
1271 } | |
1272 | |
1273 // This class provides a simple wrapper over the internal structure of | |
1274 // exception backtrace to insulate users of the backtrace from needing | |
1275 // to know what it looks like. | |
1276 class BacktraceBuilder: public StackObj { | |
1277 private: | |
1278 Handle _backtrace; | |
1279 objArrayOop _head; | |
1280 objArrayOop _methods; | |
1281 typeArrayOop _bcis; | |
1282 int _index; | |
1283 bool _dirty; | |
1284 No_Safepoint_Verifier _nsv; | |
1285 | |
1286 public: | |
1287 | |
1288 enum { | |
1289 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1290 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1291 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1292 trace_size = java_lang_Throwable::trace_size, | |
1293 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1294 }; | |
1295 | |
1296 // constructor for new backtrace | |
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1297 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
0 | 1298 expand(CHECK); |
1299 _backtrace = _head; | |
1300 _index = 0; | |
1301 } | |
1302 | |
1303 void flush() { | |
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1304 // The following appears to have been an optimization to save from |
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1305 // doing a barrier for each individual store into the _methods array, |
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1306 // but rather to do it for the entire array after the series of writes. |
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|
1307 // That optimization seems to have been lost when compressed oops was |
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diff
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1308 // implemented. However, the extra card-marks below was left in place, |
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diff
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1309 // but is now redundant because the individual stores into the |
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diff
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1310 // _methods array already execute the barrier code. CR 6918185 has |
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diff
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|
1311 // been filed so the original code may be restored by deferring the |
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diff
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1312 // barriers until after the entire sequence of stores, thus re-enabling |
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diff
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1313 // the intent of the original optimization. In the meantime the redundant |
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diff
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|
1314 // card mark below is now disabled. |
0 | 1315 if (_dirty && _methods != NULL) { |
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diff
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1316 #if 0 |
0 | 1317 BarrierSet* bs = Universe::heap()->barrier_set(); |
1318 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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1319 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
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diff
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|
1320 #endif |
0 | 1321 _dirty = false; |
1322 } | |
1323 } | |
1324 | |
1325 void expand(TRAPS) { | |
1326 flush(); | |
1327 | |
1328 objArrayHandle old_head(THREAD, _head); | |
1329 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1330 | |
1331 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1332 objArrayHandle new_head(THREAD, head); | |
1333 | |
1334 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1335 objArrayHandle new_methods(THREAD, methods); | |
1336 | |
1337 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1338 typeArrayHandle new_bcis(THREAD, bcis); | |
1339 | |
1340 if (!old_head.is_null()) { | |
1341 old_head->obj_at_put(trace_next_offset, new_head()); | |
1342 } | |
1343 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1344 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1345 | |
1346 _head = new_head(); | |
1347 _methods = new_methods(); | |
1348 _bcis = new_bcis(); | |
1349 _index = 0; | |
1350 } | |
1351 | |
1352 oop backtrace() { | |
1353 flush(); | |
1354 return _backtrace(); | |
1355 } | |
1356 | |
1357 inline void push(methodOop method, short bci, TRAPS) { | |
1358 if (_index >= trace_chunk_size) { | |
1359 methodHandle mhandle(THREAD, method); | |
1360 expand(CHECK); | |
1361 method = mhandle(); | |
1362 } | |
1363 | |
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1364 _methods->obj_at_put(_index, method); |
0 | 1365 _bcis->ushort_at_put(_index, bci); |
1366 _index++; | |
1367 _dirty = true; | |
1368 } | |
1369 | |
1370 methodOop current_method() { | |
1371 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1372 return methodOop(_methods->obj_at(_index)); | |
1373 } | |
1374 | |
1375 jushort current_bci() { | |
1376 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1377 return _bcis->ushort_at(_index); | |
1378 } | |
1379 }; | |
1380 | |
1381 | |
1382 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
1383 if (!StackTraceInThrowable) return; | |
1384 ResourceMark rm(THREAD); | |
1385 | |
1386 // Start out by clearing the backtrace for this object, in case the VM | |
1387 // runs out of memory while allocating the stack trace | |
1388 set_backtrace(throwable(), NULL); | |
1389 if (JDK_Version::is_gte_jdk14x_version()) { | |
1390 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1391 // refilling occurs | |
1392 clear_stacktrace(throwable()); | |
1393 } | |
1394 | |
1395 int max_depth = MaxJavaStackTraceDepth; | |
1396 JavaThread* thread = (JavaThread*)THREAD; | |
1397 BacktraceBuilder bt(CHECK); | |
1398 | |
1399 // Instead of using vframe directly, this version of fill_in_stack_trace | |
1400 // basically handles everything by hand. This significantly improved the | |
1401 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1402 // See bug 6333838 for more details. | |
1403 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1404 // trace as utilizing vframe. | |
1405 #ifdef ASSERT | |
1406 vframeStream st(thread); | |
1407 methodHandle st_method(THREAD, st.method()); | |
1408 #endif | |
1409 int total_count = 0; | |
1410 RegisterMap map(thread, false); | |
1411 int decode_offset = 0; | |
1412 nmethod* nm = NULL; | |
1413 bool skip_fillInStackTrace_check = false; | |
1414 bool skip_throwableInit_check = false; | |
1415 | |
1416 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1417 methodOop method = NULL; | |
1418 int bci = 0; | |
1419 | |
1420 // Compiled java method case. | |
1421 if (decode_offset != 0) { | |
1422 DebugInfoReadStream stream(nm, decode_offset); | |
1423 decode_offset = stream.read_int(); | |
1424 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1425 bci = stream.read_bci(); |
0 | 1426 } else { |
1427 if (fr.is_first_frame()) break; | |
1428 address pc = fr.pc(); | |
1429 if (fr.is_interpreted_frame()) { | |
1430 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1431 method = fr.interpreter_frame_method(); | |
1432 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1433 fr = fr.sender(&map); | |
1434 } else { | |
1435 CodeBlob* cb = fr.cb(); | |
1436 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1437 // but non nmethod | |
1438 fr = fr.sender(&map); | |
1439 if (cb == NULL || !cb->is_nmethod()) { | |
1440 continue; | |
1441 } | |
1442 nm = (nmethod*)cb; | |
1443 if (nm->method()->is_native()) { | |
1444 method = nm->method(); | |
1445 bci = 0; | |
1446 } else { | |
1447 PcDesc* pd = nm->pc_desc_at(pc); | |
1448 decode_offset = pd->scope_decode_offset(); | |
1449 // if decode_offset is not equal to 0, it will execute the | |
1450 // "compiled java method case" at the beginning of the loop. | |
1451 continue; | |
1452 } | |
1453 } | |
1454 } | |
1455 #ifdef ASSERT | |
1456 assert(st_method() == method && st.bci() == bci, | |
1457 "Wrong stack trace"); | |
1458 st.next(); | |
1459 // vframeStream::method isn't GC-safe so store off a copy | |
1460 // of the methodOop in case we GC. | |
1461 if (!st.at_end()) { | |
1462 st_method = st.method(); | |
1463 } | |
1464 #endif | |
1465 if (!skip_fillInStackTrace_check) { | |
1466 // check "fillInStackTrace" only once, so we negate the flag | |
1467 // after the first time check. | |
1468 skip_fillInStackTrace_check = true; | |
1469 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
1470 continue; | |
1471 } | |
1472 } | |
1473 // skip <init> methods of the exceptions klass. If there is <init> methods | |
1474 // that belongs to a superclass of the exception we are going to skipping | |
1475 // them in stack trace. This is simlar to classic VM. | |
1476 if (!skip_throwableInit_check) { | |
1477 if (method->name() == vmSymbols::object_initializer_name() && | |
1478 throwable->is_a(method->method_holder())) { | |
1479 continue; | |
1480 } else { | |
1481 // if no "Throwable.init()" method found, we stop checking it next time. | |
1482 skip_throwableInit_check = true; | |
1483 } | |
1484 } | |
1485 bt.push(method, bci, CHECK); | |
1486 total_count++; | |
1487 } | |
1488 | |
1489 // Put completed stack trace into throwable object | |
1490 set_backtrace(throwable(), bt.backtrace()); | |
1491 } | |
1492 | |
1493 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
1494 // No-op if stack trace is disabled | |
1495 if (!StackTraceInThrowable) { | |
1496 return; | |
1497 } | |
1498 | |
1499 // Disable stack traces for some preallocated out of memory errors | |
1500 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1501 return; | |
1502 } | |
1503 | |
1504 PRESERVE_EXCEPTION_MARK; | |
1505 | |
1506 JavaThread* thread = JavaThread::active(); | |
1507 fill_in_stack_trace(throwable, thread); | |
1508 // ignore exceptions thrown during stack trace filling | |
1509 CLEAR_PENDING_EXCEPTION; | |
1510 } | |
1511 | |
1512 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1513 // Allocate stack trace - backtrace is created but not filled in | |
1514 | |
1515 // No-op if stack trace is disabled | |
1516 if (!StackTraceInThrowable) return; | |
1517 | |
1518 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1519 objArrayHandle backtrace (THREAD, h_oop); | |
1520 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1521 objArrayHandle methods (THREAD, m_oop); | |
1522 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1523 typeArrayHandle bcis(THREAD, b); | |
1524 | |
1525 // backtrace has space for one chunk (next is NULL) | |
1526 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1527 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1528 set_backtrace(throwable(), backtrace()); | |
1529 } | |
1530 | |
1531 | |
1532 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1533 // Fill in stack trace into preallocated backtrace (no GC) | |
1534 | |
1535 // No-op if stack trace is disabled | |
1536 if (!StackTraceInThrowable) return; | |
1537 | |
1142 | 1538 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1539 |
1540 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1541 assert(backtrace != NULL, "backtrace not preallocated"); | |
1542 | |
1543 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1544 objArrayOop methods = objArrayOop(m); | |
1545 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1546 | |
1547 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1548 typeArrayOop bcis = typeArrayOop(b); | |
1549 assert(bcis != NULL, "bci array not preallocated"); | |
1550 | |
1551 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1552 | |
1553 JavaThread* thread = JavaThread::current(); | |
1554 ResourceMark rm(thread); | |
1555 vframeStream st(thread); | |
1556 | |
1557 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1558 // methods as preallocated errors aren't created by "java" code. | |
1559 | |
1560 // fill in as much stack trace as possible | |
1561 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1562 int chunk_count = 0; | |
1563 | |
1564 for (;!st.at_end(); st.next()) { | |
1565 // add element | |
1566 bcis->ushort_at_put(chunk_count, st.bci()); | |
1567 methods->obj_at_put(chunk_count, st.method()); | |
1568 | |
1569 chunk_count++; | |
1570 | |
1571 // Bail-out for deep stacks | |
1572 if (chunk_count >= max_chunks) break; | |
1573 } | |
1574 } | |
1575 | |
1576 | |
1577 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1578 if (throwable == NULL) { | |
1579 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1580 } | |
1581 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1582 int depth = 0; | |
1583 if (chunk != NULL) { | |
1584 // Iterate over chunks and count full ones | |
1585 while (true) { | |
1586 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1587 if (next == NULL) break; | |
1588 depth += trace_chunk_size; | |
1589 chunk = next; | |
1590 } | |
1591 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1592 // Count element in remaining partial chunk | |
1593 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1594 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1595 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1596 for (int i = 0; i < methods->length(); i++) { | |
1597 if (methods->obj_at(i) == NULL) break; | |
1598 depth++; | |
1599 } | |
1600 } | |
1601 return depth; | |
1602 } | |
1603 | |
1604 | |
1605 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1606 if (throwable == NULL) { | |
1607 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1608 } | |
1609 if (index < 0) { | |
1610 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1611 } | |
1612 // Compute how many chunks to skip and index into actual chunk | |
1613 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1614 int skip_chunks = index / trace_chunk_size; | |
1615 int chunk_index = index % trace_chunk_size; | |
1616 while (chunk != NULL && skip_chunks > 0) { | |
1617 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1618 skip_chunks--; | |
1619 } | |
1620 if (chunk == NULL) { | |
1621 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1622 } | |
1623 // Get method,bci from chunk | |
1624 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1625 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1626 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1627 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1628 int bci = bcis->ushort_at(chunk_index); | |
1629 // Chunk can be partial full | |
1630 if (method.is_null()) { | |
1631 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1632 } | |
1633 | |
1634 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1635 return element; | |
1636 } | |
1637 | |
1638 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1639 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1640 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1641 | |
1642 // Allocate java.lang.StackTraceElement instance | |
1142 | 1643 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1644 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1645 instanceKlassHandle ik (THREAD, k); |
1646 if (ik->should_be_initialized()) { | |
1647 ik->initialize(CHECK_0); | |
1648 } | |
1649 | |
1650 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1651 // Fill in class name | |
1652 ResourceMark rm(THREAD); | |
1653 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1654 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1655 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1656 // Fill in method name | |
1657 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1658 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1659 // Fill in source file name | |
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1660 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1661 oop filename = StringTable::intern(source, CHECK_0); |
1662 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1663 // File in source line number | |
1664 int line_number; | |
1665 if (method->is_native()) { | |
1666 // Negative value different from -1 below, enabling Java code in | |
1667 // class java.lang.StackTraceElement to distinguish "native" from | |
1668 // "no LineNumberTable". | |
1669 line_number = -2; | |
1670 } else { | |
1671 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1672 line_number = method->line_number_from_bci(bci); | |
1673 } | |
1674 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1675 | |
1676 return element(); | |
1677 } | |
1678 | |
1679 | |
1680 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1681 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1682 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1683 } |
1684 | |
1685 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1686 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1687 return (jboolean) reflect->bool_field(override_offset); | |
1688 } | |
1689 | |
1690 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1691 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1692 reflect->bool_field_put(override_offset, (int) value); | |
1693 } | |
1694 | |
1695 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1696 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1697 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1698 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1699 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1700 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1701 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1702 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1703 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1704 // The generic signature and annotations fields are only present in 1.5 |
1705 signature_offset = -1; | |
1706 annotations_offset = -1; | |
1707 parameter_annotations_offset = -1; | |
1708 annotation_default_offset = -1; | |
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1709 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1710 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1711 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1712 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1713 } |
1714 | |
1715 Handle java_lang_reflect_Method::create(TRAPS) { | |
1716 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1717 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1718 // This class is eagerly initialized during VM initialization, since we keep a refence |
1719 // to one of the methods | |
1720 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1721 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1722 } | |
1723 | |
1724 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1726 return reflect->obj_field(clazz_offset); | |
1727 } | |
1728 | |
1729 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1730 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1731 reflect->obj_field_put(clazz_offset, value); | |
1732 } | |
1733 | |
1734 int java_lang_reflect_Method::slot(oop reflect) { | |
1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1736 return reflect->int_field(slot_offset); | |
1737 } | |
1738 | |
1739 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1741 reflect->int_field_put(slot_offset, value); | |
1742 } | |
1743 | |
1744 oop java_lang_reflect_Method::name(oop method) { | |
1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1746 return method->obj_field(name_offset); | |
1747 } | |
1748 | |
1749 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1751 method->obj_field_put(name_offset, value); | |
1752 } | |
1753 | |
1754 oop java_lang_reflect_Method::return_type(oop method) { | |
1755 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1756 return method->obj_field(returnType_offset); | |
1757 } | |
1758 | |
1759 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1760 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1761 method->obj_field_put(returnType_offset, value); | |
1762 } | |
1763 | |
1764 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1765 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1766 return method->obj_field(parameterTypes_offset); | |
1767 } | |
1768 | |
1769 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1770 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1771 method->obj_field_put(parameterTypes_offset, value); | |
1772 } | |
1773 | |
1774 oop java_lang_reflect_Method::exception_types(oop method) { | |
1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1776 return method->obj_field(exceptionTypes_offset); | |
1777 } | |
1778 | |
1779 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1781 method->obj_field_put(exceptionTypes_offset, value); | |
1782 } | |
1783 | |
1784 int java_lang_reflect_Method::modifiers(oop method) { | |
1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1786 return method->int_field(modifiers_offset); | |
1787 } | |
1788 | |
1789 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1790 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1791 method->int_field_put(modifiers_offset, value); | |
1792 } | |
1793 | |
1794 bool java_lang_reflect_Method::has_signature_field() { | |
1795 return (signature_offset >= 0); | |
1796 } | |
1797 | |
1798 oop java_lang_reflect_Method::signature(oop method) { | |
1799 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1800 assert(has_signature_field(), "signature field must be present"); | |
1801 return method->obj_field(signature_offset); | |
1802 } | |
1803 | |
1804 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1805 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1806 assert(has_signature_field(), "signature field must be present"); | |
1807 method->obj_field_put(signature_offset, value); | |
1808 } | |
1809 | |
1810 bool java_lang_reflect_Method::has_annotations_field() { | |
1811 return (annotations_offset >= 0); | |
1812 } | |
1813 | |
1814 oop java_lang_reflect_Method::annotations(oop method) { | |
1815 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1816 assert(has_annotations_field(), "annotations field must be present"); | |
1817 return method->obj_field(annotations_offset); | |
1818 } | |
1819 | |
1820 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1821 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1822 assert(has_annotations_field(), "annotations field must be present"); | |
1823 method->obj_field_put(annotations_offset, value); | |
1824 } | |
1825 | |
1826 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1827 return (parameter_annotations_offset >= 0); | |
1828 } | |
1829 | |
1830 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1831 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1832 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1833 return method->obj_field(parameter_annotations_offset); | |
1834 } | |
1835 | |
1836 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1837 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1838 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1839 method->obj_field_put(parameter_annotations_offset, value); | |
1840 } | |
1841 | |
1842 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1843 return (annotation_default_offset >= 0); | |
1844 } | |
1845 | |
1846 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1847 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1848 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1849 return method->obj_field(annotation_default_offset); | |
1850 } | |
1851 | |
1852 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1853 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1854 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1855 method->obj_field_put(annotation_default_offset, value); | |
1856 } | |
1857 | |
1858 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1859 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1860 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1861 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1862 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1863 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1864 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1865 // The generic signature and annotations fields are only present in 1.5 |
1866 signature_offset = -1; | |
1867 annotations_offset = -1; | |
1868 parameter_annotations_offset = -1; | |
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1869 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1870 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1871 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1872 } |
1873 | |
1874 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1875 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1876 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1877 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1878 instanceKlassHandle klass (THREAD, k); | |
1879 // Ensure it is initialized | |
1880 klass->initialize(CHECK_NH); | |
1881 return klass->allocate_instance_handle(CHECK_NH); | |
1882 } | |
1883 | |
1884 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1886 return reflect->obj_field(clazz_offset); | |
1887 } | |
1888 | |
1889 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1891 reflect->obj_field_put(clazz_offset, value); | |
1892 } | |
1893 | |
1894 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1896 return constructor->obj_field(parameterTypes_offset); | |
1897 } | |
1898 | |
1899 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1901 constructor->obj_field_put(parameterTypes_offset, value); | |
1902 } | |
1903 | |
1904 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1906 return constructor->obj_field(exceptionTypes_offset); | |
1907 } | |
1908 | |
1909 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1911 constructor->obj_field_put(exceptionTypes_offset, value); | |
1912 } | |
1913 | |
1914 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1916 return reflect->int_field(slot_offset); | |
1917 } | |
1918 | |
1919 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1921 reflect->int_field_put(slot_offset, value); | |
1922 } | |
1923 | |
1924 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1926 return constructor->int_field(modifiers_offset); | |
1927 } | |
1928 | |
1929 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1931 constructor->int_field_put(modifiers_offset, value); | |
1932 } | |
1933 | |
1934 bool java_lang_reflect_Constructor::has_signature_field() { | |
1935 return (signature_offset >= 0); | |
1936 } | |
1937 | |
1938 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1939 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1940 assert(has_signature_field(), "signature field must be present"); | |
1941 return constructor->obj_field(signature_offset); | |
1942 } | |
1943 | |
1944 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1945 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1946 assert(has_signature_field(), "signature field must be present"); | |
1947 constructor->obj_field_put(signature_offset, value); | |
1948 } | |
1949 | |
1950 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1951 return (annotations_offset >= 0); | |
1952 } | |
1953 | |
1954 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1956 assert(has_annotations_field(), "annotations field must be present"); | |
1957 return constructor->obj_field(annotations_offset); | |
1958 } | |
1959 | |
1960 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1961 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1962 assert(has_annotations_field(), "annotations field must be present"); | |
1963 constructor->obj_field_put(annotations_offset, value); | |
1964 } | |
1965 | |
1966 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1967 return (parameter_annotations_offset >= 0); | |
1968 } | |
1969 | |
1970 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1972 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1973 return method->obj_field(parameter_annotations_offset); | |
1974 } | |
1975 | |
1976 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1977 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1978 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1979 method->obj_field_put(parameter_annotations_offset, value); | |
1980 } | |
1981 | |
1982 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 1983 klassOop k = SystemDictionary::reflect_Field_klass(); |
132
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1984 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1985 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1986 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1987 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1988 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1989 // The generic signature and annotations fields are only present in 1.5 |
1990 signature_offset = -1; | |
1991 annotations_offset = -1; | |
132
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1992 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1993 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1994 } |
1995 | |
1996 Handle java_lang_reflect_Field::create(TRAPS) { | |
1997 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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1998 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 1999 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
2000 instanceKlassHandle klass (THREAD, k); | |
2001 // Ensure it is initialized | |
2002 klass->initialize(CHECK_NH); | |
2003 return klass->allocate_instance_handle(CHECK_NH); | |
2004 } | |
2005 | |
2006 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2007 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2008 return reflect->obj_field(clazz_offset); | |
2009 } | |
2010 | |
2011 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2012 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2013 reflect->obj_field_put(clazz_offset, value); | |
2014 } | |
2015 | |
2016 oop java_lang_reflect_Field::name(oop field) { | |
2017 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2018 return field->obj_field(name_offset); | |
2019 } | |
2020 | |
2021 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2022 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2023 field->obj_field_put(name_offset, value); | |
2024 } | |
2025 | |
2026 oop java_lang_reflect_Field::type(oop field) { | |
2027 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2028 return field->obj_field(type_offset); | |
2029 } | |
2030 | |
2031 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2032 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2033 field->obj_field_put(type_offset, value); | |
2034 } | |
2035 | |
2036 int java_lang_reflect_Field::slot(oop reflect) { | |
2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2038 return reflect->int_field(slot_offset); | |
2039 } | |
2040 | |
2041 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2042 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2043 reflect->int_field_put(slot_offset, value); | |
2044 } | |
2045 | |
2046 int java_lang_reflect_Field::modifiers(oop field) { | |
2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2048 return field->int_field(modifiers_offset); | |
2049 } | |
2050 | |
2051 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2052 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2053 field->int_field_put(modifiers_offset, value); | |
2054 } | |
2055 | |
2056 bool java_lang_reflect_Field::has_signature_field() { | |
2057 return (signature_offset >= 0); | |
2058 } | |
2059 | |
2060 oop java_lang_reflect_Field::signature(oop field) { | |
2061 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2062 assert(has_signature_field(), "signature field must be present"); | |
2063 return field->obj_field(signature_offset); | |
2064 } | |
2065 | |
2066 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2067 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2068 assert(has_signature_field(), "signature field must be present"); | |
2069 field->obj_field_put(signature_offset, value); | |
2070 } | |
2071 | |
2072 bool java_lang_reflect_Field::has_annotations_field() { | |
2073 return (annotations_offset >= 0); | |
2074 } | |
2075 | |
2076 oop java_lang_reflect_Field::annotations(oop field) { | |
2077 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2078 assert(has_annotations_field(), "annotations field must be present"); | |
2079 return field->obj_field(annotations_offset); | |
2080 } | |
2081 | |
2082 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2083 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2084 assert(has_annotations_field(), "annotations field must be present"); | |
2085 field->obj_field_put(annotations_offset, value); | |
2086 } | |
2087 | |
2088 | |
2089 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 2090 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2091 // This null test can be removed post beta |
2092 if (k != NULL) { | |
132
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2093 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 2094 } |
2095 } | |
2096 | |
2097 | |
2098 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2099 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 2100 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2101 instanceKlassHandle klass (THREAD, k); |
2102 // Ensure it is initialized | |
2103 klass->initialize(CHECK_NH); | |
2104 return klass->allocate_instance_handle(CHECK_NH); | |
2105 } | |
2106 | |
2107 | |
2108 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
2109 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2110 return reflect->obj_field(_cp_oop_offset); | |
2111 } | |
2112 | |
2113 | |
2114 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2115 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2116 reflect->obj_field_put(_cp_oop_offset, value); | |
2117 } | |
2118 | |
2119 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2120 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2121 // This null test can be removed post beta |
2122 if (k != NULL) { | |
132
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2123 compute_offset(_base_offset, k, |
0 | 2124 vmSymbols::base_name(), vmSymbols::object_signature()); |
2125 } | |
2126 } | |
2127 | |
132
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2128 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2129 klassOop k = SystemDictionary::box_klass(type); |
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2130 if (k == NULL) return NULL; |
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2131 instanceKlassHandle h (THREAD, k); |
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2132 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2133 return h->allocate_instance(THREAD); |
0 | 2134 } |
2135 | |
2136 | |
2137 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2138 oop box = initialize_and_allocate(type, CHECK_0); |
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2139 if (box == NULL) return NULL; |
0 | 2140 switch (type) { |
2141 case T_BOOLEAN: | |
2142 box->bool_field_put(value_offset, value->z); | |
2143 break; | |
2144 case T_CHAR: | |
2145 box->char_field_put(value_offset, value->c); | |
2146 break; | |
2147 case T_FLOAT: | |
2148 box->float_field_put(value_offset, value->f); | |
2149 break; | |
2150 case T_DOUBLE: | |
165
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2151 box->double_field_put(long_value_offset, value->d); |
0 | 2152 break; |
2153 case T_BYTE: | |
2154 box->byte_field_put(value_offset, value->b); | |
2155 break; | |
2156 case T_SHORT: | |
2157 box->short_field_put(value_offset, value->s); | |
2158 break; | |
2159 case T_INT: | |
2160 box->int_field_put(value_offset, value->i); | |
2161 break; | |
2162 case T_LONG: | |
165
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2163 box->long_field_put(long_value_offset, value->j); |
0 | 2164 break; |
2165 default: | |
2166 return NULL; | |
2167 } | |
2168 return box; | |
2169 } | |
2170 | |
2171 | |
132
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2172 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2173 if (box == NULL) return T_ILLEGAL; |
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2174 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2175 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2176 return T_ILLEGAL; |
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2177 return type; |
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2178 } |
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2179 |
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2180 |
0 | 2181 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2182 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2183 switch (type) { |
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2184 case T_BOOLEAN: |
0 | 2185 value->z = box->bool_field(value_offset); |
132
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2186 break; |
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2187 case T_CHAR: |
0 | 2188 value->c = box->char_field(value_offset); |
132
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2189 break; |
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2190 case T_FLOAT: |
0 | 2191 value->f = box->float_field(value_offset); |
132
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2192 break; |
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2193 case T_DOUBLE: |
165
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2194 value->d = box->double_field(long_value_offset); |
132
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2195 break; |
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2196 case T_BYTE: |
0 | 2197 value->b = box->byte_field(value_offset); |
132
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2198 break; |
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2199 case T_SHORT: |
0 | 2200 value->s = box->short_field(value_offset); |
132
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2201 break; |
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2202 case T_INT: |
0 | 2203 value->i = box->int_field(value_offset); |
132
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2204 break; |
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2205 case T_LONG: |
165
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2206 value->j = box->long_field(long_value_offset); |
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2207 break; |
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2208 default: |
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2209 return T_ILLEGAL; |
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2210 } // end switch |
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2211 return type; |
0 | 2212 } |
2213 | |
2214 | |
2215 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2216 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2217 switch (type) { |
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2218 case T_BOOLEAN: |
0 | 2219 box->bool_field_put(value_offset, value->z); |
132
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2220 break; |
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2221 case T_CHAR: |
0 | 2222 box->char_field_put(value_offset, value->c); |
132
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2223 break; |
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2224 case T_FLOAT: |
0 | 2225 box->float_field_put(value_offset, value->f); |
132
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2226 break; |
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2227 case T_DOUBLE: |
165
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2228 box->double_field_put(long_value_offset, value->d); |
132
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2229 break; |
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2230 case T_BYTE: |
0 | 2231 box->byte_field_put(value_offset, value->b); |
132
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2232 break; |
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2233 case T_SHORT: |
0 | 2234 box->short_field_put(value_offset, value->s); |
132
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2235 break; |
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2236 case T_INT: |
0 | 2237 box->int_field_put(value_offset, value->i); |
132
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2238 break; |
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2239 case T_LONG: |
165
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2240 box->long_field_put(long_value_offset, value->j); |
132
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2241 break; |
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2242 default: |
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2243 return T_ILLEGAL; |
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2244 } // end switch |
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2245 return type; |
0 | 2246 } |
2247 | |
2248 | |
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2249 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
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2250 switch (type) { |
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2251 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
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2252 case T_CHAR: st->print("%d", value->c); break; |
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2253 case T_BYTE: st->print("%d", value->b); break; |
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2254 case T_SHORT: st->print("%d", value->s); break; |
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2255 case T_INT: st->print("%d", value->i); break; |
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2256 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
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2257 case T_FLOAT: st->print("%f", value->f); break; |
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2258 case T_DOUBLE: st->print("%lf", value->d); break; |
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2259 default: st->print("type %d?", type); break; |
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2260 } |
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2261 } |
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2262 |
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2263 |
0 | 2264 // Support for java_lang_ref_Reference |
113
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2265 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2266 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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2267 address addr = ik->static_field_addr(static_lock_offset); |
113
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2268 if (UseCompressedOops) { |
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2269 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2270 } else { |
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2271 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2272 } |
0 | 2273 } |
2274 | |
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2275 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2276 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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2277 address addr = ik->static_field_addr(static_pending_offset); |
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2278 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2279 return (HeapWord*)addr; |
0 | 2280 } |
2281 | |
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2282 oop java_lang_ref_Reference::pending_list() { |
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2283 char *addr = (char *)pending_list_addr(); |
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2284 if (UseCompressedOops) { |
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2285 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2286 } else { |
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2287 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2288 } |
0 | 2289 } |
2290 | |
2291 | |
2292 // Support for java_lang_ref_SoftReference | |
2293 | |
2294 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2295 return ref->long_field(timestamp_offset); | |
2296 } | |
2297 | |
2298 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2299 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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2300 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2301 return *offset; |
0 | 2302 } |
2303 | |
2304 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2305 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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2306 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
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2307 *offset = value; |
0 | 2308 } |
2309 | |
2310 | |
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2311 // Support for java_lang_invoke_MethodHandle |
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2312 |
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2313 int java_lang_invoke_MethodHandle::_type_offset; |
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2314 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
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2315 int java_lang_invoke_MethodHandle::_vmentry_offset; |
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2316 int java_lang_invoke_MethodHandle::_vmslots_offset; |
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2317 |
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2318 int java_lang_invoke_MemberName::_clazz_offset; |
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2319 int java_lang_invoke_MemberName::_name_offset; |
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2320 int java_lang_invoke_MemberName::_type_offset; |
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2321 int java_lang_invoke_MemberName::_flags_offset; |
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2322 int java_lang_invoke_MemberName::_vmtarget_offset; |
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2323 int java_lang_invoke_MemberName::_vmindex_offset; |
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2324 |
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2325 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
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2326 |
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2327 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
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2328 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
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2329 |
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2330 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2331 |
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2332 void java_lang_invoke_MethodHandle::compute_offsets() { |
710 | 2333 klassOop k = SystemDictionary::MethodHandle_klass(); |
2416
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2334 if (k != NULL && EnableInvokeDynamic) { |
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2335 bool allow_super = false; |
2357
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2336 if (AllowTransitionalJSR292) allow_super = true; // temporary, to access java.dyn.MethodHandleImpl |
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2337 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
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2338 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
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2339 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
710 | 2340 |
2341 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
2342 // It is optional pending experiments to keep or toss. | |
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2343 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
710 | 2344 } |
2345 } | |
2346 | |
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2347 void java_lang_invoke_MemberName::compute_offsets() { |
710 | 2348 klassOop k = SystemDictionary::MemberName_klass(); |
2416
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2349 if (k != NULL && EnableInvokeDynamic) { |
710 | 2350 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
2351 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2352 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2353 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2354 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
2355 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2356 } | |
2357 } | |
2358 | |
2357
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2359 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2360 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2416
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2361 if (k != NULL && EnableInvokeDynamic) { |
710 | 2362 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); |
2363 } | |
2364 } | |
2365 | |
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2366 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2367 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
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2368 if (k != NULL && EnableInvokeDynamic) { |
710 | 2369 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
2370 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2371 } | |
2372 } | |
2373 | |
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2374 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2375 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
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2376 if (k != NULL && EnableInvokeDynamic) { |
710 | 2377 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
2378 } | |
2379 } | |
2380 | |
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2381 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2382 return mh->obj_field(_type_offset); |
2383 } | |
2384 | |
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2385 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2386 mh->obj_field_put(_type_offset, mtype); |
2387 } | |
2388 | |
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2389 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2390 int vmslots_offset = _vmslots_offset; |
2391 if (vmslots_offset != 0) { | |
2392 #ifdef ASSERT | |
2393 int x = mh->int_field(vmslots_offset); | |
2394 int y = compute_vmslots(mh); | |
2395 assert(x == y, "correct hoisted value"); | |
2396 #endif | |
2397 return mh->int_field(vmslots_offset); | |
2398 } else { | |
2399 return compute_vmslots(mh); | |
2400 } | |
2401 } | |
2402 | |
2403 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
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2404 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
710 | 2405 int vmslots_offset = _vmslots_offset; |
2406 if (vmslots_offset != 0) { | |
2407 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
2408 } | |
2409 } | |
2410 | |
2411 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2412 // required to carry the arguments of this MH | |
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2413 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
710 | 2414 oop mtype = type(mh); |
2415 if (mtype == NULL) return 0; // Java code would get NPE | |
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2416 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2417 if (form == NULL) return 0; // Java code would get NPE |
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2418 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2419 } |
2420 | |
2421 // fetch the low-level entry point for this mh | |
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2422 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2423 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2424 } | |
2425 | |
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2426 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2427 assert(_vmentry_offset != 0, "must be present"); |
2428 | |
2429 // This is always the final step that initializes a valid method handle: | |
2430 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2431 | |
2432 // There should be enough memory barriers on exit from native methods | |
2433 // to ensure that the MH is fully initialized to all threads before | |
2434 // Java code can publish it in global data structures. | |
2435 // But just in case, we use release_address_field_put. | |
2436 } | |
2437 | |
2438 /// MemberName accessors | |
2439 | |
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2440 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2441 assert(is_instance(mname), "wrong type"); |
2442 return mname->obj_field(_clazz_offset); | |
2443 } | |
2444 | |
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2445 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2446 assert(is_instance(mname), "wrong type"); |
2447 mname->obj_field_put(_clazz_offset, clazz); | |
2448 } | |
2449 | |
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2450 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2451 assert(is_instance(mname), "wrong type"); |
2452 return mname->obj_field(_name_offset); | |
2453 } | |
2454 | |
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2455 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2456 assert(is_instance(mname), "wrong type"); |
2457 mname->obj_field_put(_name_offset, name); | |
2458 } | |
2459 | |
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changeset
|
2460 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2461 assert(is_instance(mname), "wrong type"); |
2462 return mname->obj_field(_type_offset); | |
2463 } | |
2464 | |
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|
2465 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2466 assert(is_instance(mname), "wrong type"); |
2467 mname->obj_field_put(_type_offset, type); | |
2468 } | |
2469 | |
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diff
changeset
|
2470 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2471 assert(is_instance(mname), "wrong type"); |
2472 return mname->int_field(_flags_offset); | |
2473 } | |
2474 | |
2357
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changeset
|
2475 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2476 assert(is_instance(mname), "wrong type"); |
2477 mname->int_field_put(_flags_offset, flags); | |
2478 } | |
2479 | |
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|
2480 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2481 assert(is_instance(mname), "wrong type"); |
2482 return mname->obj_field(_vmtarget_offset); | |
2483 } | |
2484 | |
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diff
changeset
|
2485 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2486 assert(is_instance(mname), "wrong type"); |
2487 mname->obj_field_put(_vmtarget_offset, ref); | |
2488 } | |
2489 | |
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diff
changeset
|
2490 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2491 assert(is_instance(mname), "wrong type"); |
2492 return mname->int_field(_vmindex_offset); | |
2493 } | |
2494 | |
2357
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|
2495 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2496 assert(is_instance(mname), "wrong type"); |
2497 mname->int_field_put(_vmindex_offset, index); | |
2498 } | |
2499 | |
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|
2500 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2501 assert(is_instance(mh), "MH only"); |
2502 return mh->obj_field(_vmtarget_offset); | |
2503 } | |
2504 | |
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|
2505 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2506 assert(is_instance(mh), "MH only"); |
2507 mh->obj_field_put(_vmtarget_offset, ref); | |
2508 } | |
2509 | |
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diff
changeset
|
2510 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2511 assert(is_instance(mh), "DMH only"); |
2512 return mh->int_field(_vmindex_offset); | |
2513 } | |
2514 | |
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|
2515 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2516 assert(is_instance(mh), "DMH only"); |
2517 mh->int_field_put(_vmindex_offset, index); | |
2518 } | |
2519 | |
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|
2520 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2521 assert(is_instance(mh), "BMH only"); |
2522 return mh->int_field(_vmargslot_offset); | |
2523 } | |
2524 | |
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|
2525 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2526 assert(is_instance(mh), "BMH only"); |
2527 return mh->obj_field(_argument_offset); | |
2528 } | |
2529 | |
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|
2530 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2531 assert(is_instance(mh), "AMH only"); |
2532 return mh->int_field(_conversion_offset); | |
2533 } | |
2534 | |
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|
2535 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2536 assert(is_instance(mh), "AMH only"); |
2537 mh->int_field_put(_conversion_offset, conv); | |
2538 } | |
2539 | |
2540 | |
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|
2541 // Support for java_lang_invoke_MethodType |
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|
2542 |
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|
2543 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2544 int java_lang_invoke_MethodType::_ptypes_offset; |
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|
2545 int java_lang_invoke_MethodType::_form_offset; |
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|
2546 |
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|
2547 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2548 klassOop k = SystemDictionary::MethodType_klass(); |
2549 if (k != NULL) { | |
2550 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2551 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
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|
2552 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2553 } |
2554 } | |
2555 | |
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|
2556 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2557 st->print("("); |
2558 objArrayOop pts = ptypes(mt); | |
2559 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2560 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2561 } | |
2562 st->print(")"); | |
2563 java_lang_Class::print_signature(rtype(mt), st); | |
2564 } | |
2565 | |
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|
2566 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2567 ResourceMark rm; |
2568 stringStream buffer(128); | |
2569 print_signature(mt, &buffer); | |
2570 const char* sigstr = buffer.base(); | |
2571 int siglen = (int) buffer.size(); | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2572 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2573 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2574 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
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|
2575 } else { |
3582bf76420e
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diff
changeset
|
2576 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2577 } |
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diff
changeset
|
2578 return name; |
710 | 2579 } |
2580 | |
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diff
changeset
|
2581 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2582 assert(is_instance(mt), "must be a MethodType"); |
2583 return mt->obj_field(_rtype_offset); | |
2584 } | |
2585 | |
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|
2586 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2587 assert(is_instance(mt), "must be a MethodType"); |
2588 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2589 } | |
2590 | |
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diff
changeset
|
2591 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2592 assert(is_instance(mt), "must be a MethodType"); |
2593 return mt->obj_field(_form_offset); | |
2594 } | |
2595 | |
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diff
changeset
|
2596 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2597 return ptypes(mt)->obj_at(idx); |
2598 } | |
2599 | |
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diff
changeset
|
2600 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
1133
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2601 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
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diff
changeset
|
2602 } |
aa62b9388fce
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diff
changeset
|
2603 |
710 | 2604 |
2605 | |
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|
2606 // Support for java_lang_invoke_MethodTypeForm |
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|
2607 |
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diff
changeset
|
2608 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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diff
changeset
|
2609 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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changeset
|
2610 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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diff
changeset
|
2611 |
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2356
diff
changeset
|
2612 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2613 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2614 if (k != NULL) { | |
2615 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
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diff
changeset
|
2616 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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parents:
2356
diff
changeset
|
2617 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
|
2618 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
710 | 2619 } |
2620 } | |
2621 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2622 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2623 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2624 return mtform->int_field(_vmslots_offset); | |
2625 } | |
2626 | |
2357
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jrose
parents:
2356
diff
changeset
|
2627 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2628 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2629 return mtform->obj_field(_erasedType_offset); | |
2630 } | |
2631 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2632 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
|
2633 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
|
2634 return mtform->obj_field(_genericInvoker_offset); |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2635 } |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2636 |
710 | 2637 |
2357
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jrose
parents:
2356
diff
changeset
|
2638 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2639 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2640 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
|
2641 |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2642 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2643 if (!EnableInvokeDynamic) return; |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2644 klassOop k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2645 if (k != NULL) { |
2357
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jrose
parents:
2356
diff
changeset
|
2646 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
|
2647 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2648 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2649 |
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parents:
2356
diff
changeset
|
2650 oop java_lang_invoke_CallSite::target(oop site) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2651 return site->obj_field(_target_offset); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2652 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2653 |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2654 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
|
2655 site->obj_field_put(_target_offset, target); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2656 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2657 |
710 | 2658 |
0 | 2659 // Support for java_security_AccessControlContext |
2660 | |
2661 int java_security_AccessControlContext::_context_offset = 0; | |
2662 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2663 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2664 | |
2665 void java_security_AccessControlContext::compute_offsets() { | |
2666 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2667 fieldDescriptor fd; | |
2668 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2669 | |
2670 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2671 fatal("Invalid layout of java.security.AccessControlContext"); | |
2672 } | |
2673 _context_offset = fd.offset(); | |
2674 | |
2675 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2676 fatal("Invalid layout of java.security.AccessControlContext"); | |
2677 } | |
2678 _privilegedContext_offset = fd.offset(); | |
2679 | |
2680 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2681 fatal("Invalid layout of java.security.AccessControlContext"); | |
2682 } | |
2683 _isPrivileged_offset = fd.offset(); | |
2684 } | |
2685 | |
2686 | |
2687 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2688 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2689 // Ensure klass is initialized | |
2690 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2691 // Allocate result | |
2692 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2693 // Fill in values | |
2694 result->obj_field_put(_context_offset, context()); | |
2695 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2696 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2697 return result; | |
2698 } | |
2699 | |
2700 | |
2701 // Support for java_lang_ClassLoader | |
2702 | |
2703 oop java_lang_ClassLoader::parent(oop loader) { | |
2704 assert(loader->is_oop(), "loader must be oop"); | |
2705 return loader->obj_field(parent_offset); | |
2706 } | |
2707 | |
2708 | |
2709 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
2710 // Fix for 4474172; see evaluation for more details | |
2711 loader = non_reflection_class_loader(loader); | |
2712 | |
2713 oop cl = SystemDictionary::java_system_loader(); | |
2714 while(cl != NULL) { | |
2715 if (cl == loader) return true; | |
2716 cl = parent(cl); | |
2717 } | |
2718 return false; | |
2719 } | |
2720 | |
2721 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2722 if (loader != NULL) { | |
2723 // See whether this is one of the class loaders associated with | |
2724 // the generated bytecodes for reflection, and if so, "magically" | |
2725 // delegate to its parent to prevent class loading from occurring | |
2726 // in places where applications using reflection didn't expect it. | |
1142 | 2727 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2728 // This might be null in non-1.4 JDKs |
2729 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2730 return parent(loader); | |
2731 } | |
2732 } | |
2733 return loader; | |
2734 } | |
2735 | |
2736 | |
2737 // Support for java_lang_System | |
2738 int java_lang_System::in_offset_in_bytes() { | |
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2739 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2740 } |
2741 | |
2742 | |
2743 int java_lang_System::out_offset_in_bytes() { | |
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2744 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2745 } |
2746 | |
2747 | |
2748 int java_lang_System::err_offset_in_bytes() { | |
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2749 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2750 } |
2751 | |
2752 | |
2753 | |
2754 int java_lang_String::value_offset; | |
2755 int java_lang_String::offset_offset; | |
2756 int java_lang_String::count_offset; | |
2757 int java_lang_String::hash_offset; | |
2758 int java_lang_Class::klass_offset; | |
2759 int java_lang_Class::array_klass_offset; | |
2760 int java_lang_Class::resolved_constructor_offset; | |
2761 int java_lang_Class::number_of_fake_oop_fields; | |
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2762 int java_lang_Class::oop_size_offset; |
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2763 int java_lang_Class::static_oop_field_count_offset; |
0 | 2764 int java_lang_Throwable::backtrace_offset; |
2765 int java_lang_Throwable::detailMessage_offset; | |
2766 int java_lang_Throwable::cause_offset; | |
2767 int java_lang_Throwable::stackTrace_offset; | |
2768 int java_lang_reflect_AccessibleObject::override_offset; | |
2769 int java_lang_reflect_Method::clazz_offset; | |
2770 int java_lang_reflect_Method::name_offset; | |
2771 int java_lang_reflect_Method::returnType_offset; | |
2772 int java_lang_reflect_Method::parameterTypes_offset; | |
2773 int java_lang_reflect_Method::exceptionTypes_offset; | |
2774 int java_lang_reflect_Method::slot_offset; | |
2775 int java_lang_reflect_Method::modifiers_offset; | |
2776 int java_lang_reflect_Method::signature_offset; | |
2777 int java_lang_reflect_Method::annotations_offset; | |
2778 int java_lang_reflect_Method::parameter_annotations_offset; | |
2779 int java_lang_reflect_Method::annotation_default_offset; | |
2780 int java_lang_reflect_Constructor::clazz_offset; | |
2781 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2782 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2783 int java_lang_reflect_Constructor::slot_offset; | |
2784 int java_lang_reflect_Constructor::modifiers_offset; | |
2785 int java_lang_reflect_Constructor::signature_offset; | |
2786 int java_lang_reflect_Constructor::annotations_offset; | |
2787 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2788 int java_lang_reflect_Field::clazz_offset; | |
2789 int java_lang_reflect_Field::name_offset; | |
2790 int java_lang_reflect_Field::type_offset; | |
2791 int java_lang_reflect_Field::slot_offset; | |
2792 int java_lang_reflect_Field::modifiers_offset; | |
2793 int java_lang_reflect_Field::signature_offset; | |
2794 int java_lang_reflect_Field::annotations_offset; | |
2795 int java_lang_boxing_object::value_offset; | |
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2796 int java_lang_boxing_object::long_value_offset; |
0 | 2797 int java_lang_ref_Reference::referent_offset; |
2798 int java_lang_ref_Reference::queue_offset; | |
2799 int java_lang_ref_Reference::next_offset; | |
2800 int java_lang_ref_Reference::discovered_offset; | |
2801 int java_lang_ref_Reference::static_lock_offset; | |
2802 int java_lang_ref_Reference::static_pending_offset; | |
2803 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2804 int java_lang_ref_SoftReference::timestamp_offset; | |
2805 int java_lang_ref_SoftReference::static_clock_offset; | |
2806 int java_lang_ClassLoader::parent_offset; | |
2807 int java_lang_System::static_in_offset; | |
2808 int java_lang_System::static_out_offset; | |
2809 int java_lang_System::static_err_offset; | |
2810 int java_lang_StackTraceElement::declaringClass_offset; | |
2811 int java_lang_StackTraceElement::methodName_offset; | |
2812 int java_lang_StackTraceElement::fileName_offset; | |
2813 int java_lang_StackTraceElement::lineNumber_offset; | |
2814 int java_lang_AssertionStatusDirectives::classes_offset; | |
2815 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2816 int java_lang_AssertionStatusDirectives::packages_offset; | |
2817 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2818 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2819 int java_nio_Buffer::_limit_offset; | |
2820 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2821 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2822 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2823 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2824 | |
2825 | |
2826 // Support for java_lang_StackTraceElement | |
2827 | |
2828 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2829 element->obj_field_put(fileName_offset, value); | |
2830 } | |
2831 | |
2832 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2833 element->obj_field_put(declaringClass_offset, value); | |
2834 } | |
2835 | |
2836 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2837 element->obj_field_put(methodName_offset, value); | |
2838 } | |
2839 | |
2840 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2841 element->int_field_put(lineNumber_offset, value); | |
2842 } | |
2843 | |
2844 | |
2845 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2846 | |
2847 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2848 o->obj_field_put(classes_offset, val); | |
2849 } | |
2850 | |
2851 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2852 o->obj_field_put(classEnabled_offset, val); | |
2853 } | |
2854 | |
2855 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2856 o->obj_field_put(packages_offset, val); | |
2857 } | |
2858 | |
2859 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2860 o->obj_field_put(packageEnabled_offset, val); | |
2861 } | |
2862 | |
2863 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2864 o->bool_field_put(deflt_offset, val); | |
2865 } | |
2866 | |
2867 | |
2868 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2869 int java_nio_Buffer::limit_offset() { | |
2870 return _limit_offset; | |
2871 } | |
2872 | |
2873 | |
2874 void java_nio_Buffer::compute_offsets() { | |
2875 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
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2876 assert(k != NULL, "must be loaded in 1.4+"); |
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2877 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2878 } |
2879 | |
2880 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2881 int sun_misc_AtomicLongCSImpl::value_offset() { | |
2882 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
2883 return _value_offset; | |
2884 } | |
2885 | |
2886 | |
2887 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
2888 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
2889 // If this class is not present, its value field offset won't be referenced. | |
2890 if (k != NULL) { | |
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2891 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2892 } |
2893 } | |
2894 | |
2895 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2896 if (_owner_offset != 0) return; | |
2897 | |
2898 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2899 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2900 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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2901 compute_offset(_owner_offset, k, |
0 | 2902 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2903 } | |
2904 | |
2905 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2906 assert(_owner_offset != 0, "Must be initialized"); | |
2907 return obj->obj_field(_owner_offset); | |
2908 } | |
2909 | |
2910 // Compute hard-coded offsets | |
2911 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2912 // are not available to determine the offset_of_static_fields. | |
2913 void JavaClasses::compute_hard_coded_offsets() { | |
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2914 const int x = heapOopSize; |
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2915 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2916 |
2917 // Do the String Class | |
2918 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2919 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2920 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2921 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2922 | |
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2923 { |
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2924 // Do the Class Class |
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2925 int offset = header; |
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2926 java_lang_Class::oop_size_offset = header; |
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2927 offset += BytesPerInt; |
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2928 java_lang_Class::static_oop_field_count_offset = offset; |
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2929 offset = align_size_up(offset + BytesPerInt, x); |
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2930 java_lang_Class::klass_offset = offset; |
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2931 offset += x; |
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2932 java_lang_Class::array_klass_offset = offset; |
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2933 offset += x; |
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2934 java_lang_Class::resolved_constructor_offset = offset; |
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2935 } |
0 | 2936 |
2937 // This is NOT an offset | |
2938 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
2939 | |
2940 // Throwable Class | |
2941 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2942 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2943 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2944 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
2945 | |
2946 // java_lang_boxing_object | |
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2947 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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2948 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 2949 |
2950 // java_lang_ref_Reference: | |
2951 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
2952 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
2953 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
2954 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
2955 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
2956 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
2957 // Artificial fields for java_lang_ref_Reference | |
2958 // The first field is for the discovered field added in 1.4 | |
2959 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
2960 | |
2961 // java_lang_ref_SoftReference Class | |
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2962 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 2963 // Don't multiply static fields because they are always in wordSize units |
2964 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
2965 | |
2966 // java_lang_ClassLoader | |
2967 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
2968 | |
2969 // java_lang_System | |
2970 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
2971 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
2972 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
2973 | |
2974 // java_lang_StackTraceElement | |
2975 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
2976 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
2977 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
2978 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
2979 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
2980 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
2981 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
2982 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
2983 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
2984 | |
2985 } | |
2986 | |
2987 | |
2988 // Compute non-hard-coded field offsets of all the classes in this file | |
2989 void JavaClasses::compute_offsets() { | |
2990 | |
2991 java_lang_Class::compute_offsets(); | |
2992 java_lang_Thread::compute_offsets(); | |
2993 java_lang_ThreadGroup::compute_offsets(); | |
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2994 if (EnableInvokeDynamic) { |
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2995 java_lang_invoke_MethodHandle::compute_offsets(); |
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2996 java_lang_invoke_MemberName::compute_offsets(); |
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2997 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
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2998 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
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2999 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
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3000 java_lang_invoke_MethodType::compute_offsets(); |
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3001 java_lang_invoke_MethodTypeForm::compute_offsets(); |
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3002 java_lang_invoke_CallSite::compute_offsets(); |
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3003 } |
0 | 3004 java_security_AccessControlContext::compute_offsets(); |
3005 // Initialize reflection classes. The layouts of these classes | |
3006 // changed with the new reflection implementation in JDK 1.4, and | |
3007 // since the Universe doesn't know what JDK version it is until this | |
3008 // point we defer computation of these offsets until now. | |
3009 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3010 java_lang_reflect_Method::compute_offsets(); | |
3011 java_lang_reflect_Constructor::compute_offsets(); | |
3012 java_lang_reflect_Field::compute_offsets(); | |
3013 if (JDK_Version::is_gte_jdk14x_version()) { | |
3014 java_nio_Buffer::compute_offsets(); | |
3015 } | |
3016 if (JDK_Version::is_gte_jdk15x_version()) { | |
3017 sun_reflect_ConstantPool::compute_offsets(); | |
3018 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3019 } | |
3020 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 3021 |
3022 // generated interpreter code wants to know about the offsets we just computed: | |
3023 AbstractAssembler::update_delayed_values(); | |
0 | 3024 } |
3025 | |
3026 #ifndef PRODUCT | |
3027 | |
3028 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3029 // against changes in the class files | |
3030 | |
3031 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3032 EXCEPTION_MARK; | |
3033 fieldDescriptor fd; | |
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|
3034 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3035 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3036 instanceKlassHandle h_klass (THREAD, k); | |
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3037 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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|
3038 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3039 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3040 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3041 return false; | |
3042 } | |
3043 if (fd.is_static()) { | |
3044 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3045 return false; | |
3046 } | |
3047 if (fd.offset() == hardcoded_offset ) { | |
3048 return true; | |
3049 } else { | |
3050 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3051 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3052 return false; | |
3053 } | |
3054 } | |
3055 | |
3056 | |
3057 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3058 EXCEPTION_MARK; | |
3059 fieldDescriptor fd; | |
2177
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parents:
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diff
changeset
|
3060 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3061 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3062 instanceKlassHandle h_klass (THREAD, k); | |
2177
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diff
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3063 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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diff
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|
3064 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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diff
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|
3065 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3066 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3067 return false; | |
3068 } | |
3069 if (!fd.is_static()) { | |
3070 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3071 return false; | |
3072 } | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
3073 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
0 | 3074 return true; |
3075 } else { | |
2376
c7f3d0b4570f
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parents:
2357
diff
changeset
|
3076 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 | 3077 return false; |
3078 } | |
3079 } | |
3080 | |
3081 | |
132
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3082 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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3083 EXCEPTION_MARK; |
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3084 fieldDescriptor fd; |
2177
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3085 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
132
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3086 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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3087 instanceKlassHandle h_klass (THREAD, k); |
2177
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parents:
1989
diff
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|
3088 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
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coleenp
parents:
1989
diff
changeset
|
3089 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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3090 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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3091 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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6652736: well known classes in system dictionary are inefficiently processed
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3092 return false; |
60b728ec77c1
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|
3093 } |
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|
3094 if (!fd.is_static() || !fd.has_initial_value()) { |
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3095 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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3096 return false; |
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|
3097 } |
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|
3098 if (!fd.initial_value_tag().is_int()) { |
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3099 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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3100 return false; |
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|
3101 } |
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3102 jint field_value = fd.int_initial_value(); |
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3103 if (field_value == hardcoded_constant) { |
60b728ec77c1
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|
3104 return true; |
60b728ec77c1
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|
3105 } else { |
60b728ec77c1
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|
3106 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); |
60b728ec77c1
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|
3107 return false; |
60b728ec77c1
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|
3108 } |
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|
3109 } |
60b728ec77c1
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|
3110 |
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3111 |
0 | 3112 // Check the hard-coded field offsets of all the classes in this file |
3113 | |
3114 void JavaClasses::check_offsets() { | |
3115 bool valid = true; | |
3116 | |
3117 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3118 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3119 | |
165
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6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
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|
3120 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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3121 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
437d03ea40b1
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3122 |
0 | 3123 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3124 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3125 | |
132
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|
3126 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
60b728ec77c1
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|
3127 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
60b728ec77c1
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3128 |
0 | 3129 // java.lang.String |
3130 | |
3131 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3132 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3133 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3134 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3135 | |
3136 // java.lang.Class | |
3137 | |
3138 // Fake fields | |
3139 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3140 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3141 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3142 | |
3143 // java.lang.Throwable | |
3144 | |
3145 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3146 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3147 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3148 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3149 | |
3150 // Boxed primitive objects (java_lang_boxing_object) | |
3151 | |
3152 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3153 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3154 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
165
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|
3155 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3156 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3157 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3158 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
165
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|
3159 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3160 |
3161 // java.lang.ClassLoader | |
3162 | |
3163 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3164 | |
3165 // java.lang.System | |
3166 | |
3167 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3168 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3169 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3170 | |
3171 // java.lang.StackTraceElement | |
3172 | |
3173 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3174 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3175 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3176 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3177 | |
3178 // java.lang.ref.Reference | |
3179 | |
3180 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3181 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3182 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3183 // Fake field | |
3184 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3185 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3186 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3187 | |
3188 // java.lang.ref.SoftReference | |
3189 | |
3190 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3191 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3192 | |
3193 // java.lang.AssertionStatusDirectives | |
3194 // | |
3195 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3196 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3197 // into merlin "for some time." Without it, the vm will fail with early | |
3198 // merlin builds. | |
3199 | |
3200 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3201 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3202 const char* sig = "[Ljava/lang/String;"; | |
3203 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3204 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3205 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3206 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3207 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3208 } | |
3209 | |
3210 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3211 } | |
3212 | |
3213 #endif // PRODUCT | |
3214 | |
3215 void javaClasses_init() { | |
3216 JavaClasses::compute_offsets(); | |
3217 JavaClasses::check_offsets(); | |
3218 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3219 } |