Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 2386:083f13976b51
6535709: interrupt of wait()ing thread isn't triggerring InterruptedException - test intwait3
Summary: only clear the interrupt state if we will report that it was set
Reviewed-by: dcubed, alanb, phh, coleenp, dice
author | dholmes |
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date | Mon, 21 Mar 2011 22:16:19 -0400 |
parents | 8033953d67ff |
children | c7f3d0b4570f |
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" | |
36 #include "oops/klass.hpp" | |
37 #include "oops/klassOop.hpp" | |
38 #include "oops/methodOop.hpp" | |
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39 #include "oops/symbol.hpp" |
1972 | 40 #include "oops/typeArrayOop.hpp" |
41 #include "runtime/fieldDescriptor.hpp" | |
42 #include "runtime/handles.inline.hpp" | |
43 #include "runtime/interfaceSupport.hpp" | |
44 #include "runtime/java.hpp" | |
45 #include "runtime/javaCalls.hpp" | |
46 #include "runtime/safepoint.hpp" | |
47 #include "runtime/vframe.hpp" | |
48 #include "utilities/preserveException.hpp" | |
49 #ifdef TARGET_OS_FAMILY_linux | |
50 # include "thread_linux.inline.hpp" | |
51 #endif | |
52 #ifdef TARGET_OS_FAMILY_solaris | |
53 # include "thread_solaris.inline.hpp" | |
54 #endif | |
55 #ifdef TARGET_OS_FAMILY_windows | |
56 # include "thread_windows.inline.hpp" | |
57 #endif | |
0 | 58 |
710 | 59 static bool find_field(instanceKlass* ik, |
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60 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 61 fieldDescriptor* fd, |
62 bool allow_super = false) { | |
63 if (allow_super) | |
64 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
65 else | |
66 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
67 } | |
68 | |
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69 static bool find_hacked_field(instanceKlass* ik, |
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70 Symbol* name_symbol, Symbol* signature_symbol, |
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71 fieldDescriptor* fd, |
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72 bool allow_super = false) { |
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73 bool found = find_field(ik, name_symbol, signature_symbol, fd, allow_super); |
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74 if (!found && AllowTransitionalJSR292) { |
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75 Symbol* backup_sig = SystemDictionary::find_backup_signature(signature_symbol); |
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76 if (backup_sig != NULL) { |
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77 found = find_field(ik, name_symbol, backup_sig, fd, allow_super); |
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78 if (TraceMethodHandles) { |
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79 ResourceMark rm; |
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80 tty->print_cr("MethodHandles: %s.%s: backup for %s => %s%s", |
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81 ik->name()->as_C_string(), name_symbol->as_C_string(), |
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82 signature_symbol->as_C_string(), backup_sig->as_C_string(), |
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83 (found ? "" : " (NOT FOUND)")); |
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84 } |
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85 } |
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86 } |
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87 return found; |
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88 } |
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89 #define find_field find_hacked_field /* remove after AllowTransitionalJSR292 */ |
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90 |
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91 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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92 static void |
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93 compute_offset(int &dest_offset, |
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94 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 95 bool allow_super = false) { |
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96 fieldDescriptor fd; |
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97 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 98 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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99 ResourceMark rm; |
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100 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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101 fatal("Invalid layout of preloaded class"); |
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102 } |
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103 dest_offset = fd.offset(); |
0 | 104 } |
105 | |
106 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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107 static void |
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108 compute_optional_offset(int& dest_offset, |
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109 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 110 bool allow_super = false) { |
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111 fieldDescriptor fd; |
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112 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 113 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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114 dest_offset = fd.offset(); |
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115 } |
0 | 116 } |
117 | |
710 | 118 |
0 | 119 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
120 // Create the String object first, so there's a chance that the String | |
121 // and the char array it points to end up in the same cache line. | |
122 oop obj; | |
123 if (tenured) { | |
1142 | 124 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 125 } else { |
1142 | 126 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 127 } |
128 | |
129 // Create the char array. The String object must be handlized here | |
130 // because GC can happen as a result of the allocation attempt. | |
131 Handle h_obj(THREAD, obj); | |
132 typeArrayOop buffer; | |
133 if (tenured) { | |
134 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
135 } else { | |
136 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
137 } | |
138 | |
139 // Point the String at the char array | |
140 obj = h_obj(); | |
141 set_value(obj, buffer); | |
142 // No need to zero the offset, allocation zero'ed the entire String object | |
143 assert(offset(obj) == 0, "initial String offset should be zero"); | |
144 //set_offset(obj, 0); | |
145 set_count(obj, length); | |
146 | |
147 return h_obj; | |
148 } | |
149 | |
150 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
151 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
152 typeArrayOop buffer = value(h_obj()); | |
153 for (int index = 0; index < length; index++) { | |
154 buffer->char_at_put(index, unicode[index]); | |
155 } | |
156 return h_obj; | |
157 } | |
158 | |
159 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
160 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
161 } | |
162 | |
163 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
164 return basic_create_from_unicode(unicode, length, true, CHECK_NH); | |
165 } | |
166 | |
167 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
168 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
169 return h_obj(); | |
170 } | |
171 | |
172 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
173 if (utf8_str == NULL) { | |
174 return Handle(); | |
175 } | |
176 int length = UTF8::unicode_length(utf8_str); | |
177 Handle h_obj = basic_create(length, false, CHECK_NH); | |
178 if (length > 0) { | |
179 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
180 } | |
181 return h_obj; | |
182 } | |
183 | |
184 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
185 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
186 return h_obj(); | |
187 } | |
188 | |
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189 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 190 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
191 Handle h_obj = basic_create(length, false, CHECK_NH); | |
192 if (length > 0) { | |
193 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
194 } | |
195 return h_obj; | |
196 } | |
197 | |
198 // Converts a C string to a Java String based on current encoding | |
199 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
200 assert(str != NULL, "bad arguments"); | |
201 | |
202 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
203 static to_java_string_fn_t _to_java_string_fn = NULL; | |
204 | |
205 if (_to_java_string_fn == NULL) { | |
206 void *lib_handle = os::native_java_library(); | |
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207 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 208 if (_to_java_string_fn == NULL) { |
209 fatal("NewStringPlatform missing"); | |
210 } | |
211 } | |
212 | |
213 jstring js = NULL; | |
214 { JavaThread* thread = (JavaThread*)THREAD; | |
215 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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216 HandleMark hm(thread); |
0 | 217 ThreadToNativeFromVM ttn(thread); |
218 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
219 } | |
220 return Handle(THREAD, JNIHandles::resolve(js)); | |
221 } | |
222 | |
22
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223 // Converts a Java String to a native C string that can be used for |
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224 // native OS calls. |
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225 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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226 |
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227 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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228 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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229 |
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230 if (_to_platform_string_fn == NULL) { |
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231 void *lib_handle = os::native_java_library(); |
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232 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
22
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233 if (_to_platform_string_fn == NULL) { |
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234 fatal("GetStringPlatformChars missing"); |
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235 } |
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236 } |
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237 |
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238 char *native_platform_string; |
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239 { JavaThread* thread = (JavaThread*)THREAD; |
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240 assert(thread->is_Java_thread(), "must be java thread"); |
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241 JNIEnv *env = thread->jni_environment(); |
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242 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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243 bool is_copy; |
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244 HandleMark hm(thread); |
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245 ThreadToNativeFromVM ttn(thread); |
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246 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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247 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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248 JNIHandles::destroy_local(js); |
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249 } |
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250 return native_platform_string; |
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251 } |
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252 |
0 | 253 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
254 oop obj = java_string(); | |
255 // Typical usage is to convert all '/' to '.' in string. | |
256 typeArrayOop value = java_lang_String::value(obj); | |
257 int offset = java_lang_String::offset(obj); | |
258 int length = java_lang_String::length(obj); | |
259 | |
260 // First check if any from_char exist | |
261 int index; // Declared outside, used later | |
262 for (index = 0; index < length; index++) { | |
263 if (value->char_at(index + offset) == from_char) { | |
264 break; | |
265 } | |
266 } | |
267 if (index == length) { | |
268 // No from_char, so do not copy. | |
269 return java_string; | |
270 } | |
271 | |
272 // Create new UNICODE buffer. Must handlize value because GC | |
273 // may happen during String and char array creation. | |
274 typeArrayHandle h_value(THREAD, value); | |
275 Handle string = basic_create(length, false, CHECK_NH); | |
276 | |
277 typeArrayOop from_buffer = h_value(); | |
278 typeArrayOop to_buffer = java_lang_String::value(string()); | |
279 | |
280 // Copy contents | |
281 for (index = 0; index < length; index++) { | |
282 jchar c = from_buffer->char_at(index + offset); | |
283 if (c == from_char) { | |
284 c = to_char; | |
285 } | |
286 to_buffer->char_at_put(index, c); | |
287 } | |
288 return string; | |
289 } | |
290 | |
291 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
292 typeArrayOop value = java_lang_String::value(java_string); | |
293 int offset = java_lang_String::offset(java_string); | |
294 length = java_lang_String::length(java_string); | |
295 | |
296 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
297 for (int index = 0; index < length; index++) { | |
298 result[index] = value->char_at(index + offset); | |
299 } | |
300 return result; | |
301 } | |
302 | |
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303 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 304 oop obj = java_string(); |
305 typeArrayOop value = java_lang_String::value(obj); | |
306 int offset = java_lang_String::offset(obj); | |
307 int length = java_lang_String::length(obj); | |
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308 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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309 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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310 return sym; |
0 | 311 } |
312 | |
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313 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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314 typeArrayOop value = java_lang_String::value(java_string); |
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315 int offset = java_lang_String::offset(java_string); |
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316 int length = java_lang_String::length(java_string); |
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317 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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318 return SymbolTable::probe_unicode(base, length); |
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319 } |
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320 |
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321 |
0 | 322 int java_lang_String::utf8_length(oop java_string) { |
323 typeArrayOop value = java_lang_String::value(java_string); | |
324 int offset = java_lang_String::offset(java_string); | |
325 int length = java_lang_String::length(java_string); | |
326 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
327 return UNICODE::utf8_length(position, length); | |
328 } | |
329 | |
330 char* java_lang_String::as_utf8_string(oop java_string) { | |
331 typeArrayOop value = java_lang_String::value(java_string); | |
332 int offset = java_lang_String::offset(java_string); | |
333 int length = java_lang_String::length(java_string); | |
334 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
335 return UNICODE::as_utf8(position, length); | |
336 } | |
337 | |
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338 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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339 typeArrayOop value = java_lang_String::value(java_string); |
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340 int offset = java_lang_String::offset(java_string); |
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341 int length = java_lang_String::length(java_string); |
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342 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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343 return UNICODE::as_utf8(position, length, buf, buflen); |
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344 } |
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345 |
0 | 346 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
347 typeArrayOop value = java_lang_String::value(java_string); | |
348 int offset = java_lang_String::offset(java_string); | |
349 int length = java_lang_String::length(java_string); | |
350 assert(start + len <= length, "just checking"); | |
351 jchar* position = value->char_at_addr(offset + start); | |
352 return UNICODE::as_utf8(position, len); | |
353 } | |
354 | |
355 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
356 assert(SharedSkipVerify || | |
1142 | 357 java_string->klass() == SystemDictionary::String_klass(), |
0 | 358 "must be java_string"); |
359 typeArrayOop value = java_lang_String::value(java_string); | |
360 int offset = java_lang_String::offset(java_string); | |
361 int length = java_lang_String::length(java_string); | |
362 if (length != len) { | |
363 return false; | |
364 } | |
365 for (int i = 0; i < len; i++) { | |
366 if (value->char_at(i + offset) != chars[i]) { | |
367 return false; | |
368 } | |
369 } | |
370 return true; | |
371 } | |
372 | |
373 void java_lang_String::print(Handle java_string, outputStream* st) { | |
374 oop obj = java_string(); | |
1142 | 375 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 376 typeArrayOop value = java_lang_String::value(obj); |
377 int offset = java_lang_String::offset(obj); | |
378 int length = java_lang_String::length(obj); | |
379 | |
380 int end = MIN2(length, 100); | |
381 if (value == NULL) { | |
382 // This can happen if, e.g., printing a String | |
383 // object before its initializer has been called | |
384 st->print_cr("NULL"); | |
385 } else { | |
386 st->print("\""); | |
387 for (int index = 0; index < length; index++) { | |
388 st->print("%c", value->char_at(index + offset)); | |
389 } | |
390 st->print("\""); | |
391 } | |
392 } | |
393 | |
394 | |
395 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
396 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
397 // Use this moment of initialization to cache modifier_flags also, | |
398 // to support Class.getModifiers(). Instance classes recalculate | |
399 // the cached flags after the class file is parsed, but before the | |
400 // class is put into the system dictionary. | |
401 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
402 k->set_modifier_flags(computed_modifiers); | |
1142 | 403 if (SystemDictionary::Class_klass_loaded()) { |
0 | 404 // Allocate mirror (java.lang.Class instance) |
1142 | 405 Handle mirror = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
0 | 406 // Setup indirections |
407 mirror->obj_field_put(klass_offset, k()); | |
408 k->set_java_mirror(mirror()); | |
409 // It might also have a component mirror. This mirror must already exist. | |
410 if (k->oop_is_javaArray()) { | |
411 Handle comp_mirror; | |
412 if (k->oop_is_typeArray()) { | |
413 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
414 comp_mirror = Universe::java_mirror(type); | |
415 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
416 } else if (k->oop_is_objArray()) { | |
417 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
418 if (element_klass != NULL | |
419 && (Klass::cast(element_klass)->oop_is_instance() || | |
420 Klass::cast(element_klass)->oop_is_javaArray())) { | |
421 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
422 assert(comp_mirror.not_null(), "must have element mirror"); | |
423 } | |
424 // else some object array internal to the VM, like systemObjArrayKlassObj | |
425 } | |
426 if (comp_mirror.not_null()) { | |
427 // Two-way link between the array klass and its component mirror: | |
428 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
429 set_array_klass(comp_mirror(), k->as_klassOop()); | |
430 } | |
431 } | |
432 return mirror(); | |
433 } else { | |
434 return NULL; | |
435 } | |
436 } | |
437 | |
438 | |
439 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { | |
440 // This should be improved by adding a field at the Java level or by | |
441 // introducing a new VM klass (see comment in ClassFileParser) | |
1142 | 442 oop java_class = instanceKlass::cast(SystemDictionary::Class_klass())->allocate_permanent_instance(CHECK_0); |
0 | 443 if (type != T_VOID) { |
444 klassOop aklass = Universe::typeArrayKlassObj(type); | |
445 assert(aklass != NULL, "correct bootstrap"); | |
446 set_array_klass(java_class, aklass); | |
447 } | |
448 return java_class; | |
449 } | |
450 | |
451 | |
452 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
453 //%note memory_2 | |
454 klassOop k = klassOop(java_class->obj_field(klass_offset)); | |
455 assert(k == NULL || k->is_klass(), "type check"); | |
456 return k; | |
457 } | |
458 | |
459 | |
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460 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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461 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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462 Symbol* name = NULL; |
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463 bool is_instance = false; |
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464 if (is_primitive(java_class)) { |
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465 name = vmSymbols::type_signature(primitive_type(java_class)); |
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466 } else { |
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467 klassOop k = as_klassOop(java_class); |
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468 is_instance = Klass::cast(k)->oop_is_instance(); |
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469 name = Klass::cast(k)->name(); |
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470 } |
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471 if (name == NULL) { |
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472 st->print("<null>"); |
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473 return; |
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474 } |
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475 if (is_instance) st->print("L"); |
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476 st->write((char*) name->base(), (int) name->utf8_length()); |
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477 if (is_instance) st->print(";"); |
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478 } |
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479 |
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480 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
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481 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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482 Symbol* name; |
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483 if (is_primitive(java_class)) { |
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484 name = vmSymbols::type_signature(primitive_type(java_class)); |
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485 // Because this can create a new symbol, the caller has to decrement |
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486 // the refcount, so make adjustment here and below for symbols returned |
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487 // that are not created or incremented due to a successful lookup. |
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488 name->increment_refcount(); |
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489 } else { |
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490 klassOop k = as_klassOop(java_class); |
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491 if (!Klass::cast(k)->oop_is_instance()) { |
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492 name = Klass::cast(k)->name(); |
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493 name->increment_refcount(); |
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494 } else { |
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495 ResourceMark rm; |
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496 const char* sigstr = Klass::cast(k)->signature_name(); |
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497 int siglen = (int) strlen(sigstr); |
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498 if (!intern_if_not_found) { |
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499 name = SymbolTable::probe(sigstr, siglen); |
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500 } else { |
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501 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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502 } |
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503 } |
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504 } |
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505 return name; |
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506 } |
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507 |
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508 |
0 | 509 klassOop java_lang_Class::array_klass(oop java_class) { |
510 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
511 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
512 return k; | |
513 } | |
514 | |
515 | |
516 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
517 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
518 java_class->obj_field_put(array_klass_offset, klass); | |
519 } | |
520 | |
521 | |
522 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
523 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
524 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
525 return methodOop(constructor); | |
526 } | |
527 | |
528 | |
529 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
530 assert(constructor->is_method(), "should be method"); | |
531 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
532 } | |
533 | |
534 | |
535 bool java_lang_Class::is_primitive(oop java_class) { | |
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536 // should assert: |
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537 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 538 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
539 return k == NULL; | |
540 } | |
541 | |
542 | |
543 BasicType java_lang_Class::primitive_type(oop java_class) { | |
544 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
545 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
546 BasicType type = T_VOID; | |
547 if (ak != NULL) { | |
548 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
549 type = arrayKlass::cast(ak)->element_type(); | |
550 } else { | |
551 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
552 } | |
553 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
554 return type; | |
555 } | |
556 | |
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557 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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558 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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559 if (is_primitive(java_class)) { |
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560 if (reference_klass != NULL) |
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561 (*reference_klass) = NULL; |
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562 return primitive_type(java_class); |
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563 } else { |
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564 if (reference_klass != NULL) |
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565 (*reference_klass) = as_klassOop(java_class); |
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566 return T_OBJECT; |
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567 } |
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568 } |
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569 |
0 | 570 |
571 oop java_lang_Class::primitive_mirror(BasicType t) { | |
572 oop mirror = Universe::java_mirror(t); | |
1142 | 573 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 574 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
575 return mirror; | |
576 } | |
577 | |
578 bool java_lang_Class::offsets_computed = false; | |
579 int java_lang_Class::classRedefinedCount_offset = -1; | |
514 | 580 int java_lang_Class::parallelCapable_offset = -1; |
0 | 581 |
582 void java_lang_Class::compute_offsets() { | |
583 assert(!offsets_computed, "offsets should be initialized only once"); | |
584 offsets_computed = true; | |
585 | |
1142 | 586 klassOop k = SystemDictionary::Class_klass(); |
0 | 587 // The classRedefinedCount field is only present starting in 1.5, |
588 // so don't go fatal. | |
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589 compute_optional_offset(classRedefinedCount_offset, |
0 | 590 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
514 | 591 |
592 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
1142 | 593 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
514 | 594 compute_optional_offset(parallelCapable_offset, |
595 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
596 } | |
597 | |
598 // For class loader classes, parallelCapable defined | |
599 // based on non-null field | |
600 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
601 bool java_lang_Class::parallelCapable(oop class_loader) { | |
602 if (!JDK_Version::is_gte_jdk17x_version() | |
603 || parallelCapable_offset == -1) { | |
604 // Default for backward compatibility is false | |
605 return false; | |
606 } | |
607 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
0 | 608 } |
609 | |
610 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
611 if (!JDK_Version::is_gte_jdk15x_version() | |
612 || classRedefinedCount_offset == -1) { | |
613 // The classRedefinedCount field is only present starting in 1.5. | |
614 // If we don't have an offset for it then just return -1 as a marker. | |
615 return -1; | |
616 } | |
617 | |
618 return the_class_mirror->int_field(classRedefinedCount_offset); | |
619 } | |
620 | |
621 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
622 if (!JDK_Version::is_gte_jdk15x_version() | |
623 || classRedefinedCount_offset == -1) { | |
624 // The classRedefinedCount field is only present starting in 1.5. | |
625 // If we don't have an offset for it then nothing to set. | |
626 return; | |
627 } | |
628 | |
629 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
630 } | |
631 | |
632 | |
633 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
634 // platform thread structure, and a eetop offset which was used for thread | |
635 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
636 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
637 // instead of the privateInfo_offset. | |
638 // | |
639 // Note: The stackSize field is only present starting in 1.4. | |
640 | |
641 int java_lang_Thread::_name_offset = 0; | |
642 int java_lang_Thread::_group_offset = 0; | |
643 int java_lang_Thread::_contextClassLoader_offset = 0; | |
644 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
645 int java_lang_Thread::_priority_offset = 0; | |
646 int java_lang_Thread::_eetop_offset = 0; | |
647 int java_lang_Thread::_daemon_offset = 0; | |
648 int java_lang_Thread::_stillborn_offset = 0; | |
649 int java_lang_Thread::_stackSize_offset = 0; | |
650 int java_lang_Thread::_tid_offset = 0; | |
651 int java_lang_Thread::_thread_status_offset = 0; | |
652 int java_lang_Thread::_park_blocker_offset = 0; | |
653 int java_lang_Thread::_park_event_offset = 0 ; | |
654 | |
655 | |
656 void java_lang_Thread::compute_offsets() { | |
657 assert(_group_offset == 0, "offsets should be initialized only once"); | |
658 | |
1142 | 659 klassOop k = SystemDictionary::Thread_klass(); |
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660 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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661 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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662 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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663 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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664 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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665 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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666 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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667 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 668 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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669 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 670 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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671 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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672 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 673 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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674 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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675 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 676 vmSymbols::long_signature()); |
677 } | |
678 | |
679 | |
680 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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681 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 682 } |
683 | |
684 | |
685 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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686 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 687 } |
688 | |
689 | |
690 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
691 oop name = java_thread->obj_field(_name_offset); | |
692 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
693 return typeArrayOop(name); | |
694 } | |
695 | |
696 | |
697 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
698 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
699 java_thread->obj_field_put(_name_offset, name); | |
700 } | |
701 | |
702 | |
703 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
704 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
705 } | |
706 | |
707 | |
708 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
709 java_thread->int_field_put(_priority_offset, priority); | |
710 } | |
711 | |
712 | |
713 oop java_lang_Thread::threadGroup(oop java_thread) { | |
714 return java_thread->obj_field(_group_offset); | |
715 } | |
716 | |
717 | |
718 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
719 return java_thread->bool_field(_stillborn_offset) != 0; | |
720 } | |
721 | |
722 | |
723 // We never have reason to turn the stillborn bit off | |
724 void java_lang_Thread::set_stillborn(oop java_thread) { | |
725 java_thread->bool_field_put(_stillborn_offset, true); | |
726 } | |
727 | |
728 | |
729 bool java_lang_Thread::is_alive(oop java_thread) { | |
730 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
731 return (thr != NULL); | |
732 } | |
733 | |
734 | |
735 bool java_lang_Thread::is_daemon(oop java_thread) { | |
736 return java_thread->bool_field(_daemon_offset) != 0; | |
737 } | |
738 | |
739 | |
740 void java_lang_Thread::set_daemon(oop java_thread) { | |
741 java_thread->bool_field_put(_daemon_offset, true); | |
742 } | |
743 | |
744 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
745 return java_thread->obj_field(_contextClassLoader_offset); | |
746 } | |
747 | |
748 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
749 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
750 } | |
751 | |
752 | |
753 jlong java_lang_Thread::stackSize(oop java_thread) { | |
754 // The stackSize field is only present starting in 1.4 | |
755 if (_stackSize_offset > 0) { | |
756 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
757 return java_thread->long_field(_stackSize_offset); | |
758 } else { | |
759 return 0; | |
760 } | |
761 } | |
762 | |
763 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
764 void java_lang_Thread::set_thread_status(oop java_thread, | |
765 java_lang_Thread::ThreadStatus status) { | |
766 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
767 // The threadStatus is only present starting in 1.5 | |
768 if (_thread_status_offset > 0) { | |
769 java_thread->int_field_put(_thread_status_offset, status); | |
770 } | |
771 } | |
772 | |
773 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
774 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
775 assert(Thread::current()->is_VM_thread() || | |
776 JavaThread::current()->thread_state() == _thread_in_vm, | |
777 "Java Thread is not running in vm"); | |
778 // The threadStatus is only present starting in 1.5 | |
779 if (_thread_status_offset > 0) { | |
780 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
781 } else { | |
782 // All we can easily figure out is if it is alive, but that is | |
783 // enough info for a valid unknown status. | |
784 // These aren't restricted to valid set ThreadStatus values, so | |
785 // use JVMTI values and cast. | |
786 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
787 if (thr == NULL) { | |
788 // the thread hasn't run yet or is in the process of exiting | |
789 return NEW; | |
790 } | |
791 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
792 } | |
793 } | |
794 | |
795 | |
796 jlong java_lang_Thread::thread_id(oop java_thread) { | |
797 // The thread ID field is only present starting in 1.5 | |
798 if (_tid_offset > 0) { | |
799 return java_thread->long_field(_tid_offset); | |
800 } else { | |
801 return 0; | |
802 } | |
803 } | |
804 | |
805 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 806 assert(JDK_Version::current().supports_thread_park_blocker() && |
807 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 808 |
809 if (_park_blocker_offset > 0) { | |
810 return java_thread->obj_field(_park_blocker_offset); | |
811 } | |
812 | |
813 return NULL; | |
814 } | |
815 | |
816 jlong java_lang_Thread::park_event(oop java_thread) { | |
817 if (_park_event_offset > 0) { | |
818 return java_thread->long_field(_park_event_offset); | |
819 } | |
820 return 0; | |
821 } | |
822 | |
823 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
824 if (_park_event_offset > 0) { | |
825 java_thread->long_field_put(_park_event_offset, ptr); | |
826 return true; | |
827 } | |
828 return false; | |
829 } | |
830 | |
831 | |
832 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
833 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
834 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
835 switch (status) { | |
836 case NEW : return "NEW"; | |
837 case RUNNABLE : return "RUNNABLE"; | |
838 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
839 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
840 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
841 case PARKED : return "WAITING (parking)"; | |
842 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
843 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
844 case TERMINATED : return "TERMINATED"; | |
845 default : return "UNKNOWN"; | |
846 }; | |
847 } | |
848 int java_lang_ThreadGroup::_parent_offset = 0; | |
849 int java_lang_ThreadGroup::_name_offset = 0; | |
850 int java_lang_ThreadGroup::_threads_offset = 0; | |
851 int java_lang_ThreadGroup::_groups_offset = 0; | |
852 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
853 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
854 int java_lang_ThreadGroup::_daemon_offset = 0; | |
855 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
856 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
857 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
858 | |
859 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
860 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
861 return java_thread_group->obj_field(_parent_offset); | |
862 } | |
863 | |
864 // ("name as oop" accessor is not necessary) | |
865 | |
866 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
867 oop name = java_thread_group->obj_field(_name_offset); | |
868 // ThreadGroup.name can be null | |
869 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
870 } | |
871 | |
872 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
873 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
874 return java_thread_group->int_field(_nthreads_offset); | |
875 } | |
876 | |
877 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
878 oop threads = java_thread_group->obj_field(_threads_offset); | |
879 assert(threads != NULL, "threadgroups should have threads"); | |
880 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
881 return objArrayOop(threads); | |
882 } | |
883 | |
884 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
885 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
886 return java_thread_group->int_field(_ngroups_offset); | |
887 } | |
888 | |
889 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
890 oop groups = java_thread_group->obj_field(_groups_offset); | |
891 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
892 return objArrayOop(groups); | |
893 } | |
894 | |
895 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
896 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
897 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
898 } | |
899 | |
900 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
901 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
902 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
903 } | |
904 | |
905 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
906 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
907 return java_thread_group->bool_field(_daemon_offset) != 0; | |
908 } | |
909 | |
910 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
911 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
912 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
913 } | |
914 | |
915 void java_lang_ThreadGroup::compute_offsets() { | |
916 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
917 | |
1142 | 918 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 919 |
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920 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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921 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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922 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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923 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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924 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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925 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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926 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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927 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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928 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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929 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 930 } |
931 | |
932 oop java_lang_Throwable::backtrace(oop throwable) { | |
933 return throwable->obj_field_acquire(backtrace_offset); | |
934 } | |
935 | |
936 | |
937 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
938 throwable->release_obj_field_put(backtrace_offset, value); | |
939 } | |
940 | |
941 | |
942 oop java_lang_Throwable::message(oop throwable) { | |
943 return throwable->obj_field(detailMessage_offset); | |
944 } | |
945 | |
946 | |
947 oop java_lang_Throwable::message(Handle throwable) { | |
948 return throwable->obj_field(detailMessage_offset); | |
949 } | |
950 | |
951 | |
952 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
953 throwable->obj_field_put(detailMessage_offset, value); | |
954 } | |
955 | |
956 | |
957 void java_lang_Throwable::clear_stacktrace(oop throwable) { | |
958 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
959 throwable->obj_field_put(stackTrace_offset, NULL); | |
960 } | |
961 | |
962 | |
963 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
964 ResourceMark rm; | |
965 klassOop k = throwable->klass(); | |
966 assert(k != NULL, "just checking"); | |
967 st->print("%s", instanceKlass::cast(k)->external_name()); | |
968 oop msg = message(throwable); | |
969 if (msg != NULL) { | |
970 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
971 } | |
972 } | |
973 | |
974 | |
975 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
976 ResourceMark rm; | |
977 klassOop k = throwable->klass(); | |
978 assert(k != NULL, "just checking"); | |
979 st->print("%s", instanceKlass::cast(k)->external_name()); | |
980 oop msg = message(throwable); | |
981 if (msg != NULL) { | |
982 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
983 } | |
984 } | |
985 | |
986 // Print stack trace element to resource allocated buffer | |
987 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
988 // Get strings and string lengths | |
989 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
990 const char* klass_name = klass->external_name(); | |
991 int buf_len = (int)strlen(klass_name); | |
992 char* source_file_name; | |
993 if (klass->source_file_name() == NULL) { | |
994 source_file_name = NULL; | |
995 } else { | |
996 source_file_name = klass->source_file_name()->as_C_string(); | |
997 buf_len += (int)strlen(source_file_name); | |
998 } | |
999 char* method_name = method->name()->as_C_string(); | |
1000 buf_len += (int)strlen(method_name); | |
1001 | |
1002 // Allocate temporary buffer with extra space for formatting and line number | |
1003 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1004 | |
1005 // Print stack trace line in buffer | |
1006 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1007 if (method->is_native()) { | |
1008 strcat(buf, "(Native Method)"); | |
1009 } else { | |
1010 int line_number = method->line_number_from_bci(bci); | |
1011 if (source_file_name != NULL && (line_number != -1)) { | |
1012 // Sourcename and linenumber | |
1013 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1014 } else if (source_file_name != NULL) { | |
1015 // Just sourcename | |
1016 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1017 } else { | |
1018 // Neither soucename and linenumber | |
1019 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1020 } | |
1021 nmethod* nm = method->code(); | |
1022 if (WizardMode && nm != NULL) { | |
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1023 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
0 | 1024 } |
1025 } | |
1026 | |
1027 return buf; | |
1028 } | |
1029 | |
1030 | |
1031 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1032 ResourceMark rm; | |
1033 char* buf = print_stack_element_to_buffer(method, bci); | |
1034 print_to_stream(stream, buf); | |
1035 } | |
1036 | |
1037 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1038 ResourceMark rm; | |
1039 char* buf = print_stack_element_to_buffer(method, bci); | |
1040 st->print_cr("%s", buf); | |
1041 } | |
1042 | |
1043 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1044 if (stream.is_null()) { | |
1045 tty->print_cr("%s", str); | |
1046 } else { | |
1047 EXCEPTION_MARK; | |
1048 JavaValue result(T_VOID); | |
1049 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1050 if (!HAS_PENDING_EXCEPTION) { | |
1051 JavaCalls::call_virtual(&result, | |
1052 stream, | |
1053 KlassHandle(THREAD, stream->klass()), | |
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1054 vmSymbols::println_name(), |
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1055 vmSymbols::char_array_void_signature(), |
0 | 1056 arg, |
1057 THREAD); | |
1058 } | |
1059 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1060 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1061 } | |
1062 | |
1063 } | |
1064 | |
1065 | |
1066 const char* java_lang_Throwable::no_stack_trace_message() { | |
1067 return "\t<<no stack trace available>>"; | |
1068 } | |
1069 | |
1070 | |
1071 // Currently used only for exceptions occurring during startup | |
1072 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1073 Thread *THREAD = Thread::current(); | |
1074 Handle h_throwable(THREAD, throwable); | |
1075 while (h_throwable.not_null()) { | |
1076 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1077 if (result.is_null()) { | |
1078 st->print_cr(no_stack_trace_message()); | |
1079 return; | |
1080 } | |
1081 | |
1082 while (result.not_null()) { | |
1083 objArrayHandle methods (THREAD, | |
1084 objArrayOop(result->obj_at(trace_methods_offset))); | |
1085 typeArrayHandle bcis (THREAD, | |
1086 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1087 | |
1088 if (methods.is_null() || bcis.is_null()) { | |
1089 st->print_cr(no_stack_trace_message()); | |
1090 return; | |
1091 } | |
1092 | |
1093 int length = methods()->length(); | |
1094 for (int index = 0; index < length; index++) { | |
1095 methodOop method = methodOop(methods()->obj_at(index)); | |
1096 if (method == NULL) goto handle_cause; | |
1097 int bci = bcis->ushort_at(index); | |
1098 print_stack_element(st, method, bci); | |
1099 } | |
1100 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1101 } | |
1102 handle_cause: | |
1103 { | |
1104 EXCEPTION_MARK; | |
1105 JavaValue result(T_OBJECT); | |
1106 JavaCalls::call_virtual(&result, | |
1107 h_throwable, | |
1108 KlassHandle(THREAD, h_throwable->klass()), | |
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1109 vmSymbols::getCause_name(), |
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1110 vmSymbols::void_throwable_signature(), |
0 | 1111 THREAD); |
1112 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1113 if (HAS_PENDING_EXCEPTION) { | |
1114 CLEAR_PENDING_EXCEPTION; | |
1115 h_throwable = Handle(); | |
1116 } else { | |
1117 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1118 if (h_throwable.not_null()) { | |
1119 st->print("Caused by: "); | |
1120 print(h_throwable, st); | |
1121 st->cr(); | |
1122 } | |
1123 } | |
1124 } | |
1125 } | |
1126 } | |
1127 | |
1128 | |
1129 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1130 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1131 Thread *thread = Thread::current(); | |
1132 Handle stream(thread, print_stream); | |
1133 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1134 if (result.is_null()) { | |
1135 print_to_stream(stream, no_stack_trace_message()); | |
1136 return; | |
1137 } | |
1138 | |
1139 while (result.not_null()) { | |
1140 objArrayHandle methods (thread, | |
1141 objArrayOop(result->obj_at(trace_methods_offset))); | |
1142 typeArrayHandle bcis (thread, | |
1143 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1144 | |
1145 if (methods.is_null() || bcis.is_null()) { | |
1146 print_to_stream(stream, no_stack_trace_message()); | |
1147 return; | |
1148 } | |
1149 | |
1150 int length = methods()->length(); | |
1151 for (int index = 0; index < length; index++) { | |
1152 methodOop method = methodOop(methods()->obj_at(index)); | |
1153 if (method == NULL) return; | |
1154 int bci = bcis->ushort_at(index); | |
1155 print_stack_element(stream, method, bci); | |
1156 } | |
1157 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1158 } | |
1159 } | |
1160 | |
1161 // This class provides a simple wrapper over the internal structure of | |
1162 // exception backtrace to insulate users of the backtrace from needing | |
1163 // to know what it looks like. | |
1164 class BacktraceBuilder: public StackObj { | |
1165 private: | |
1166 Handle _backtrace; | |
1167 objArrayOop _head; | |
1168 objArrayOop _methods; | |
1169 typeArrayOop _bcis; | |
1170 int _index; | |
1171 bool _dirty; | |
1172 No_Safepoint_Verifier _nsv; | |
1173 | |
1174 public: | |
1175 | |
1176 enum { | |
1177 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1178 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1179 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1180 trace_size = java_lang_Throwable::trace_size, | |
1181 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1182 }; | |
1183 | |
1184 // constructor for new backtrace | |
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1185 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _dirty(false) { |
0 | 1186 expand(CHECK); |
1187 _backtrace = _head; | |
1188 _index = 0; | |
1189 } | |
1190 | |
1191 void flush() { | |
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1192 // The following appears to have been an optimization to save from |
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1193 // doing a barrier for each individual store into the _methods array, |
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1194 // but rather to do it for the entire array after the series of writes. |
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1195 // That optimization seems to have been lost when compressed oops was |
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1196 // implemented. However, the extra card-marks below was left in place, |
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1197 // but is now redundant because the individual stores into the |
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1198 // _methods array already execute the barrier code. CR 6918185 has |
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1199 // been filed so the original code may be restored by deferring the |
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1200 // barriers until after the entire sequence of stores, thus re-enabling |
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1201 // the intent of the original optimization. In the meantime the redundant |
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1202 // card mark below is now disabled. |
0 | 1203 if (_dirty && _methods != NULL) { |
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1204 #if 0 |
0 | 1205 BarrierSet* bs = Universe::heap()->barrier_set(); |
1206 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); | |
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1207 bs->write_ref_array((HeapWord*)_methods->base(), _methods->length()); |
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1208 #endif |
0 | 1209 _dirty = false; |
1210 } | |
1211 } | |
1212 | |
1213 void expand(TRAPS) { | |
1214 flush(); | |
1215 | |
1216 objArrayHandle old_head(THREAD, _head); | |
1217 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1218 | |
1219 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1220 objArrayHandle new_head(THREAD, head); | |
1221 | |
1222 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1223 objArrayHandle new_methods(THREAD, methods); | |
1224 | |
1225 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1226 typeArrayHandle new_bcis(THREAD, bcis); | |
1227 | |
1228 if (!old_head.is_null()) { | |
1229 old_head->obj_at_put(trace_next_offset, new_head()); | |
1230 } | |
1231 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1232 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1233 | |
1234 _head = new_head(); | |
1235 _methods = new_methods(); | |
1236 _bcis = new_bcis(); | |
1237 _index = 0; | |
1238 } | |
1239 | |
1240 oop backtrace() { | |
1241 flush(); | |
1242 return _backtrace(); | |
1243 } | |
1244 | |
1245 inline void push(methodOop method, short bci, TRAPS) { | |
1246 if (_index >= trace_chunk_size) { | |
1247 methodHandle mhandle(THREAD, method); | |
1248 expand(CHECK); | |
1249 method = mhandle(); | |
1250 } | |
1251 | |
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1252 _methods->obj_at_put(_index, method); |
0 | 1253 _bcis->ushort_at_put(_index, bci); |
1254 _index++; | |
1255 _dirty = true; | |
1256 } | |
1257 | |
1258 methodOop current_method() { | |
1259 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1260 return methodOop(_methods->obj_at(_index)); | |
1261 } | |
1262 | |
1263 jushort current_bci() { | |
1264 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1265 return _bcis->ushort_at(_index); | |
1266 } | |
1267 }; | |
1268 | |
1269 | |
1270 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) { | |
1271 if (!StackTraceInThrowable) return; | |
1272 ResourceMark rm(THREAD); | |
1273 | |
1274 // Start out by clearing the backtrace for this object, in case the VM | |
1275 // runs out of memory while allocating the stack trace | |
1276 set_backtrace(throwable(), NULL); | |
1277 if (JDK_Version::is_gte_jdk14x_version()) { | |
1278 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1279 // refilling occurs | |
1280 clear_stacktrace(throwable()); | |
1281 } | |
1282 | |
1283 int max_depth = MaxJavaStackTraceDepth; | |
1284 JavaThread* thread = (JavaThread*)THREAD; | |
1285 BacktraceBuilder bt(CHECK); | |
1286 | |
1287 // Instead of using vframe directly, this version of fill_in_stack_trace | |
1288 // basically handles everything by hand. This significantly improved the | |
1289 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1290 // See bug 6333838 for more details. | |
1291 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1292 // trace as utilizing vframe. | |
1293 #ifdef ASSERT | |
1294 vframeStream st(thread); | |
1295 methodHandle st_method(THREAD, st.method()); | |
1296 #endif | |
1297 int total_count = 0; | |
1298 RegisterMap map(thread, false); | |
1299 int decode_offset = 0; | |
1300 nmethod* nm = NULL; | |
1301 bool skip_fillInStackTrace_check = false; | |
1302 bool skip_throwableInit_check = false; | |
1303 | |
1304 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1305 methodOop method = NULL; | |
1306 int bci = 0; | |
1307 | |
1308 // Compiled java method case. | |
1309 if (decode_offset != 0) { | |
1310 DebugInfoReadStream stream(nm, decode_offset); | |
1311 decode_offset = stream.read_int(); | |
1312 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1313 bci = stream.read_bci(); |
0 | 1314 } else { |
1315 if (fr.is_first_frame()) break; | |
1316 address pc = fr.pc(); | |
1317 if (fr.is_interpreted_frame()) { | |
1318 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1319 method = fr.interpreter_frame_method(); | |
1320 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1321 fr = fr.sender(&map); | |
1322 } else { | |
1323 CodeBlob* cb = fr.cb(); | |
1324 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1325 // but non nmethod | |
1326 fr = fr.sender(&map); | |
1327 if (cb == NULL || !cb->is_nmethod()) { | |
1328 continue; | |
1329 } | |
1330 nm = (nmethod*)cb; | |
1331 if (nm->method()->is_native()) { | |
1332 method = nm->method(); | |
1333 bci = 0; | |
1334 } else { | |
1335 PcDesc* pd = nm->pc_desc_at(pc); | |
1336 decode_offset = pd->scope_decode_offset(); | |
1337 // if decode_offset is not equal to 0, it will execute the | |
1338 // "compiled java method case" at the beginning of the loop. | |
1339 continue; | |
1340 } | |
1341 } | |
1342 } | |
1343 #ifdef ASSERT | |
1344 assert(st_method() == method && st.bci() == bci, | |
1345 "Wrong stack trace"); | |
1346 st.next(); | |
1347 // vframeStream::method isn't GC-safe so store off a copy | |
1348 // of the methodOop in case we GC. | |
1349 if (!st.at_end()) { | |
1350 st_method = st.method(); | |
1351 } | |
1352 #endif | |
1353 if (!skip_fillInStackTrace_check) { | |
1354 // check "fillInStackTrace" only once, so we negate the flag | |
1355 // after the first time check. | |
1356 skip_fillInStackTrace_check = true; | |
1357 if (method->name() == vmSymbols::fillInStackTrace_name()) { | |
1358 continue; | |
1359 } | |
1360 } | |
1361 // skip <init> methods of the exceptions klass. If there is <init> methods | |
1362 // that belongs to a superclass of the exception we are going to skipping | |
1363 // them in stack trace. This is simlar to classic VM. | |
1364 if (!skip_throwableInit_check) { | |
1365 if (method->name() == vmSymbols::object_initializer_name() && | |
1366 throwable->is_a(method->method_holder())) { | |
1367 continue; | |
1368 } else { | |
1369 // if no "Throwable.init()" method found, we stop checking it next time. | |
1370 skip_throwableInit_check = true; | |
1371 } | |
1372 } | |
1373 bt.push(method, bci, CHECK); | |
1374 total_count++; | |
1375 } | |
1376 | |
1377 // Put completed stack trace into throwable object | |
1378 set_backtrace(throwable(), bt.backtrace()); | |
1379 } | |
1380 | |
1381 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) { | |
1382 // No-op if stack trace is disabled | |
1383 if (!StackTraceInThrowable) { | |
1384 return; | |
1385 } | |
1386 | |
1387 // Disable stack traces for some preallocated out of memory errors | |
1388 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1389 return; | |
1390 } | |
1391 | |
1392 PRESERVE_EXCEPTION_MARK; | |
1393 | |
1394 JavaThread* thread = JavaThread::active(); | |
1395 fill_in_stack_trace(throwable, thread); | |
1396 // ignore exceptions thrown during stack trace filling | |
1397 CLEAR_PENDING_EXCEPTION; | |
1398 } | |
1399 | |
1400 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1401 // Allocate stack trace - backtrace is created but not filled in | |
1402 | |
1403 // No-op if stack trace is disabled | |
1404 if (!StackTraceInThrowable) return; | |
1405 | |
1406 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1407 objArrayHandle backtrace (THREAD, h_oop); | |
1408 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1409 objArrayHandle methods (THREAD, m_oop); | |
1410 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1411 typeArrayHandle bcis(THREAD, b); | |
1412 | |
1413 // backtrace has space for one chunk (next is NULL) | |
1414 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1415 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1416 set_backtrace(throwable(), backtrace()); | |
1417 } | |
1418 | |
1419 | |
1420 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1421 // Fill in stack trace into preallocated backtrace (no GC) | |
1422 | |
1423 // No-op if stack trace is disabled | |
1424 if (!StackTraceInThrowable) return; | |
1425 | |
1142 | 1426 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1427 |
1428 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1429 assert(backtrace != NULL, "backtrace not preallocated"); | |
1430 | |
1431 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1432 objArrayOop methods = objArrayOop(m); | |
1433 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1434 | |
1435 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1436 typeArrayOop bcis = typeArrayOop(b); | |
1437 assert(bcis != NULL, "bci array not preallocated"); | |
1438 | |
1439 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1440 | |
1441 JavaThread* thread = JavaThread::current(); | |
1442 ResourceMark rm(thread); | |
1443 vframeStream st(thread); | |
1444 | |
1445 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1446 // methods as preallocated errors aren't created by "java" code. | |
1447 | |
1448 // fill in as much stack trace as possible | |
1449 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1450 int chunk_count = 0; | |
1451 | |
1452 for (;!st.at_end(); st.next()) { | |
1453 // add element | |
1454 bcis->ushort_at_put(chunk_count, st.bci()); | |
1455 methods->obj_at_put(chunk_count, st.method()); | |
1456 | |
1457 chunk_count++; | |
1458 | |
1459 // Bail-out for deep stacks | |
1460 if (chunk_count >= max_chunks) break; | |
1461 } | |
1462 } | |
1463 | |
1464 | |
1465 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1466 if (throwable == NULL) { | |
1467 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1468 } | |
1469 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1470 int depth = 0; | |
1471 if (chunk != NULL) { | |
1472 // Iterate over chunks and count full ones | |
1473 while (true) { | |
1474 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1475 if (next == NULL) break; | |
1476 depth += trace_chunk_size; | |
1477 chunk = next; | |
1478 } | |
1479 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1480 // Count element in remaining partial chunk | |
1481 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1482 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1483 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1484 for (int i = 0; i < methods->length(); i++) { | |
1485 if (methods->obj_at(i) == NULL) break; | |
1486 depth++; | |
1487 } | |
1488 } | |
1489 return depth; | |
1490 } | |
1491 | |
1492 | |
1493 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1494 if (throwable == NULL) { | |
1495 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1496 } | |
1497 if (index < 0) { | |
1498 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1499 } | |
1500 // Compute how many chunks to skip and index into actual chunk | |
1501 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1502 int skip_chunks = index / trace_chunk_size; | |
1503 int chunk_index = index % trace_chunk_size; | |
1504 while (chunk != NULL && skip_chunks > 0) { | |
1505 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1506 skip_chunks--; | |
1507 } | |
1508 if (chunk == NULL) { | |
1509 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1510 } | |
1511 // Get method,bci from chunk | |
1512 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1513 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1514 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1515 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1516 int bci = bcis->ushort_at(chunk_index); | |
1517 // Chunk can be partial full | |
1518 if (method.is_null()) { | |
1519 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1520 } | |
1521 | |
1522 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1523 return element; | |
1524 } | |
1525 | |
1526 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1527 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1528 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1529 | |
1530 // Allocate java.lang.StackTraceElement instance | |
1142 | 1531 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1532 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1533 instanceKlassHandle ik (THREAD, k); |
1534 if (ik->should_be_initialized()) { | |
1535 ik->initialize(CHECK_0); | |
1536 } | |
1537 | |
1538 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1539 // Fill in class name | |
1540 ResourceMark rm(THREAD); | |
1541 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1542 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1543 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1544 // Fill in method name | |
1545 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1546 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1547 // Fill in source file name | |
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1548 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1549 oop filename = StringTable::intern(source, CHECK_0); |
1550 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1551 // File in source line number | |
1552 int line_number; | |
1553 if (method->is_native()) { | |
1554 // Negative value different from -1 below, enabling Java code in | |
1555 // class java.lang.StackTraceElement to distinguish "native" from | |
1556 // "no LineNumberTable". | |
1557 line_number = -2; | |
1558 } else { | |
1559 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1560 line_number = method->line_number_from_bci(bci); | |
1561 } | |
1562 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1563 | |
1564 return element(); | |
1565 } | |
1566 | |
1567 | |
1568 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1569 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1570 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1571 } |
1572 | |
1573 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1574 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1575 return (jboolean) reflect->bool_field(override_offset); | |
1576 } | |
1577 | |
1578 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1579 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1580 reflect->bool_field_put(override_offset, (int) value); | |
1581 } | |
1582 | |
1583 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1584 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1585 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1586 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1587 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1588 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1589 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1590 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1591 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1592 // The generic signature and annotations fields are only present in 1.5 |
1593 signature_offset = -1; | |
1594 annotations_offset = -1; | |
1595 parameter_annotations_offset = -1; | |
1596 annotation_default_offset = -1; | |
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1597 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1598 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1599 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1600 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1601 } |
1602 | |
1603 Handle java_lang_reflect_Method::create(TRAPS) { | |
1604 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1605 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1606 // This class is eagerly initialized during VM initialization, since we keep a refence |
1607 // to one of the methods | |
1608 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1609 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1610 } | |
1611 | |
1612 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1613 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1614 return reflect->obj_field(clazz_offset); | |
1615 } | |
1616 | |
1617 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1618 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1619 reflect->obj_field_put(clazz_offset, value); | |
1620 } | |
1621 | |
1622 int java_lang_reflect_Method::slot(oop reflect) { | |
1623 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1624 return reflect->int_field(slot_offset); | |
1625 } | |
1626 | |
1627 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1628 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1629 reflect->int_field_put(slot_offset, value); | |
1630 } | |
1631 | |
1632 oop java_lang_reflect_Method::name(oop method) { | |
1633 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1634 return method->obj_field(name_offset); | |
1635 } | |
1636 | |
1637 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1638 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1639 method->obj_field_put(name_offset, value); | |
1640 } | |
1641 | |
1642 oop java_lang_reflect_Method::return_type(oop method) { | |
1643 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1644 return method->obj_field(returnType_offset); | |
1645 } | |
1646 | |
1647 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1648 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1649 method->obj_field_put(returnType_offset, value); | |
1650 } | |
1651 | |
1652 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1653 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1654 return method->obj_field(parameterTypes_offset); | |
1655 } | |
1656 | |
1657 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1658 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1659 method->obj_field_put(parameterTypes_offset, value); | |
1660 } | |
1661 | |
1662 oop java_lang_reflect_Method::exception_types(oop method) { | |
1663 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1664 return method->obj_field(exceptionTypes_offset); | |
1665 } | |
1666 | |
1667 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1668 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1669 method->obj_field_put(exceptionTypes_offset, value); | |
1670 } | |
1671 | |
1672 int java_lang_reflect_Method::modifiers(oop method) { | |
1673 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1674 return method->int_field(modifiers_offset); | |
1675 } | |
1676 | |
1677 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1678 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1679 method->int_field_put(modifiers_offset, value); | |
1680 } | |
1681 | |
1682 bool java_lang_reflect_Method::has_signature_field() { | |
1683 return (signature_offset >= 0); | |
1684 } | |
1685 | |
1686 oop java_lang_reflect_Method::signature(oop method) { | |
1687 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1688 assert(has_signature_field(), "signature field must be present"); | |
1689 return method->obj_field(signature_offset); | |
1690 } | |
1691 | |
1692 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1693 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1694 assert(has_signature_field(), "signature field must be present"); | |
1695 method->obj_field_put(signature_offset, value); | |
1696 } | |
1697 | |
1698 bool java_lang_reflect_Method::has_annotations_field() { | |
1699 return (annotations_offset >= 0); | |
1700 } | |
1701 | |
1702 oop java_lang_reflect_Method::annotations(oop method) { | |
1703 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1704 assert(has_annotations_field(), "annotations field must be present"); | |
1705 return method->obj_field(annotations_offset); | |
1706 } | |
1707 | |
1708 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1709 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1710 assert(has_annotations_field(), "annotations field must be present"); | |
1711 method->obj_field_put(annotations_offset, value); | |
1712 } | |
1713 | |
1714 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1715 return (parameter_annotations_offset >= 0); | |
1716 } | |
1717 | |
1718 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1719 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1720 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1721 return method->obj_field(parameter_annotations_offset); | |
1722 } | |
1723 | |
1724 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1726 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1727 method->obj_field_put(parameter_annotations_offset, value); | |
1728 } | |
1729 | |
1730 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1731 return (annotation_default_offset >= 0); | |
1732 } | |
1733 | |
1734 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1736 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1737 return method->obj_field(annotation_default_offset); | |
1738 } | |
1739 | |
1740 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1741 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1742 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1743 method->obj_field_put(annotation_default_offset, value); | |
1744 } | |
1745 | |
1746 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1747 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1748 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1749 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1750 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1751 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1752 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1753 // The generic signature and annotations fields are only present in 1.5 |
1754 signature_offset = -1; | |
1755 annotations_offset = -1; | |
1756 parameter_annotations_offset = -1; | |
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1757 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1758 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1759 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1760 } |
1761 | |
1762 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1763 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1764 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1765 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1766 instanceKlassHandle klass (THREAD, k); | |
1767 // Ensure it is initialized | |
1768 klass->initialize(CHECK_NH); | |
1769 return klass->allocate_instance_handle(CHECK_NH); | |
1770 } | |
1771 | |
1772 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1773 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1774 return reflect->obj_field(clazz_offset); | |
1775 } | |
1776 | |
1777 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1778 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1779 reflect->obj_field_put(clazz_offset, value); | |
1780 } | |
1781 | |
1782 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1783 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1784 return constructor->obj_field(parameterTypes_offset); | |
1785 } | |
1786 | |
1787 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1788 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1789 constructor->obj_field_put(parameterTypes_offset, value); | |
1790 } | |
1791 | |
1792 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1793 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1794 return constructor->obj_field(exceptionTypes_offset); | |
1795 } | |
1796 | |
1797 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1798 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1799 constructor->obj_field_put(exceptionTypes_offset, value); | |
1800 } | |
1801 | |
1802 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1803 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1804 return reflect->int_field(slot_offset); | |
1805 } | |
1806 | |
1807 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1808 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1809 reflect->int_field_put(slot_offset, value); | |
1810 } | |
1811 | |
1812 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1813 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1814 return constructor->int_field(modifiers_offset); | |
1815 } | |
1816 | |
1817 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1818 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1819 constructor->int_field_put(modifiers_offset, value); | |
1820 } | |
1821 | |
1822 bool java_lang_reflect_Constructor::has_signature_field() { | |
1823 return (signature_offset >= 0); | |
1824 } | |
1825 | |
1826 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1827 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1828 assert(has_signature_field(), "signature field must be present"); | |
1829 return constructor->obj_field(signature_offset); | |
1830 } | |
1831 | |
1832 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1833 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1834 assert(has_signature_field(), "signature field must be present"); | |
1835 constructor->obj_field_put(signature_offset, value); | |
1836 } | |
1837 | |
1838 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1839 return (annotations_offset >= 0); | |
1840 } | |
1841 | |
1842 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1843 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1844 assert(has_annotations_field(), "annotations field must be present"); | |
1845 return constructor->obj_field(annotations_offset); | |
1846 } | |
1847 | |
1848 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1849 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1850 assert(has_annotations_field(), "annotations field must be present"); | |
1851 constructor->obj_field_put(annotations_offset, value); | |
1852 } | |
1853 | |
1854 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1855 return (parameter_annotations_offset >= 0); | |
1856 } | |
1857 | |
1858 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1859 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1860 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1861 return method->obj_field(parameter_annotations_offset); | |
1862 } | |
1863 | |
1864 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1865 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1866 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1867 method->obj_field_put(parameter_annotations_offset, value); | |
1868 } | |
1869 | |
1870 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 1871 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1872 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1873 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1874 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1875 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1876 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1877 // The generic signature and annotations fields are only present in 1.5 |
1878 signature_offset = -1; | |
1879 annotations_offset = -1; | |
132
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1880 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1881 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1882 } |
1883 | |
1884 Handle java_lang_reflect_Field::create(TRAPS) { | |
1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1886 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 1887 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1888 instanceKlassHandle klass (THREAD, k); | |
1889 // Ensure it is initialized | |
1890 klass->initialize(CHECK_NH); | |
1891 return klass->allocate_instance_handle(CHECK_NH); | |
1892 } | |
1893 | |
1894 oop java_lang_reflect_Field::clazz(oop reflect) { | |
1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1896 return reflect->obj_field(clazz_offset); | |
1897 } | |
1898 | |
1899 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1901 reflect->obj_field_put(clazz_offset, value); | |
1902 } | |
1903 | |
1904 oop java_lang_reflect_Field::name(oop field) { | |
1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1906 return field->obj_field(name_offset); | |
1907 } | |
1908 | |
1909 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1911 field->obj_field_put(name_offset, value); | |
1912 } | |
1913 | |
1914 oop java_lang_reflect_Field::type(oop field) { | |
1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1916 return field->obj_field(type_offset); | |
1917 } | |
1918 | |
1919 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1921 field->obj_field_put(type_offset, value); | |
1922 } | |
1923 | |
1924 int java_lang_reflect_Field::slot(oop reflect) { | |
1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1926 return reflect->int_field(slot_offset); | |
1927 } | |
1928 | |
1929 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
1930 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1931 reflect->int_field_put(slot_offset, value); | |
1932 } | |
1933 | |
1934 int java_lang_reflect_Field::modifiers(oop field) { | |
1935 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1936 return field->int_field(modifiers_offset); | |
1937 } | |
1938 | |
1939 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1941 field->int_field_put(modifiers_offset, value); | |
1942 } | |
1943 | |
1944 bool java_lang_reflect_Field::has_signature_field() { | |
1945 return (signature_offset >= 0); | |
1946 } | |
1947 | |
1948 oop java_lang_reflect_Field::signature(oop field) { | |
1949 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1950 assert(has_signature_field(), "signature field must be present"); | |
1951 return field->obj_field(signature_offset); | |
1952 } | |
1953 | |
1954 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1956 assert(has_signature_field(), "signature field must be present"); | |
1957 field->obj_field_put(signature_offset, value); | |
1958 } | |
1959 | |
1960 bool java_lang_reflect_Field::has_annotations_field() { | |
1961 return (annotations_offset >= 0); | |
1962 } | |
1963 | |
1964 oop java_lang_reflect_Field::annotations(oop field) { | |
1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1966 assert(has_annotations_field(), "annotations field must be present"); | |
1967 return field->obj_field(annotations_offset); | |
1968 } | |
1969 | |
1970 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1972 assert(has_annotations_field(), "annotations field must be present"); | |
1973 field->obj_field_put(annotations_offset, value); | |
1974 } | |
1975 | |
1976 | |
1977 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 1978 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 1979 // This null test can be removed post beta |
1980 if (k != NULL) { | |
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1981 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 1982 } |
1983 } | |
1984 | |
1985 | |
1986 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
1987 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1988 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 1989 instanceKlassHandle klass (THREAD, k); |
1990 // Ensure it is initialized | |
1991 klass->initialize(CHECK_NH); | |
1992 return klass->allocate_instance_handle(CHECK_NH); | |
1993 } | |
1994 | |
1995 | |
1996 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
1997 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1998 return reflect->obj_field(_cp_oop_offset); | |
1999 } | |
2000 | |
2001 | |
2002 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2003 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2004 reflect->obj_field_put(_cp_oop_offset, value); | |
2005 } | |
2006 | |
2007 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2008 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2009 // This null test can be removed post beta |
2010 if (k != NULL) { | |
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2011 compute_offset(_base_offset, k, |
0 | 2012 vmSymbols::base_name(), vmSymbols::object_signature()); |
2013 } | |
2014 } | |
2015 | |
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2016 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2017 klassOop k = SystemDictionary::box_klass(type); |
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2018 if (k == NULL) return NULL; |
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2019 instanceKlassHandle h (THREAD, k); |
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2020 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2021 return h->allocate_instance(THREAD); |
0 | 2022 } |
2023 | |
2024 | |
2025 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2026 oop box = initialize_and_allocate(type, CHECK_0); |
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2027 if (box == NULL) return NULL; |
0 | 2028 switch (type) { |
2029 case T_BOOLEAN: | |
2030 box->bool_field_put(value_offset, value->z); | |
2031 break; | |
2032 case T_CHAR: | |
2033 box->char_field_put(value_offset, value->c); | |
2034 break; | |
2035 case T_FLOAT: | |
2036 box->float_field_put(value_offset, value->f); | |
2037 break; | |
2038 case T_DOUBLE: | |
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2039 box->double_field_put(long_value_offset, value->d); |
0 | 2040 break; |
2041 case T_BYTE: | |
2042 box->byte_field_put(value_offset, value->b); | |
2043 break; | |
2044 case T_SHORT: | |
2045 box->short_field_put(value_offset, value->s); | |
2046 break; | |
2047 case T_INT: | |
2048 box->int_field_put(value_offset, value->i); | |
2049 break; | |
2050 case T_LONG: | |
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2051 box->long_field_put(long_value_offset, value->j); |
0 | 2052 break; |
2053 default: | |
2054 return NULL; | |
2055 } | |
2056 return box; | |
2057 } | |
2058 | |
2059 | |
132
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2060 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2061 if (box == NULL) return T_ILLEGAL; |
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2062 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2063 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2064 return T_ILLEGAL; |
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2065 return type; |
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2066 } |
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2067 |
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2068 |
0 | 2069 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2070 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2071 switch (type) { |
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2072 case T_BOOLEAN: |
0 | 2073 value->z = box->bool_field(value_offset); |
132
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2074 break; |
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2075 case T_CHAR: |
0 | 2076 value->c = box->char_field(value_offset); |
132
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2077 break; |
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2078 case T_FLOAT: |
0 | 2079 value->f = box->float_field(value_offset); |
132
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2080 break; |
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2081 case T_DOUBLE: |
165
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2082 value->d = box->double_field(long_value_offset); |
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2083 break; |
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2084 case T_BYTE: |
0 | 2085 value->b = box->byte_field(value_offset); |
132
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2086 break; |
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2087 case T_SHORT: |
0 | 2088 value->s = box->short_field(value_offset); |
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2089 break; |
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2090 case T_INT: |
0 | 2091 value->i = box->int_field(value_offset); |
132
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2092 break; |
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2093 case T_LONG: |
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2094 value->j = box->long_field(long_value_offset); |
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2095 break; |
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2096 default: |
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2097 return T_ILLEGAL; |
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2098 } // end switch |
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2099 return type; |
0 | 2100 } |
2101 | |
2102 | |
2103 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2104 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2105 switch (type) { |
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2106 case T_BOOLEAN: |
0 | 2107 box->bool_field_put(value_offset, value->z); |
132
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2108 break; |
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2109 case T_CHAR: |
0 | 2110 box->char_field_put(value_offset, value->c); |
132
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2111 break; |
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2112 case T_FLOAT: |
0 | 2113 box->float_field_put(value_offset, value->f); |
132
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2114 break; |
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2115 case T_DOUBLE: |
165
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2116 box->double_field_put(long_value_offset, value->d); |
132
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2117 break; |
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2118 case T_BYTE: |
0 | 2119 box->byte_field_put(value_offset, value->b); |
132
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2120 break; |
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2121 case T_SHORT: |
0 | 2122 box->short_field_put(value_offset, value->s); |
132
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2123 break; |
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2124 case T_INT: |
0 | 2125 box->int_field_put(value_offset, value->i); |
132
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2126 break; |
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2127 case T_LONG: |
165
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2128 box->long_field_put(long_value_offset, value->j); |
132
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2129 break; |
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|
2130 default: |
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|
2131 return T_ILLEGAL; |
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2132 } // end switch |
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2133 return type; |
0 | 2134 } |
2135 | |
2136 | |
665
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2137 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
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2138 switch (type) { |
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2139 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
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2140 case T_CHAR: st->print("%d", value->c); break; |
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2141 case T_BYTE: st->print("%d", value->b); break; |
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2142 case T_SHORT: st->print("%d", value->s); break; |
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2143 case T_INT: st->print("%d", value->i); break; |
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2144 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
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2145 case T_FLOAT: st->print("%f", value->f); break; |
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2146 case T_DOUBLE: st->print("%lf", value->d); break; |
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2147 default: st->print("type %d?", type); break; |
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2148 } |
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2149 } |
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2150 |
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2151 |
0 | 2152 // Support for java_lang_ref_Reference |
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2153 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2154 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
113
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2155 char *addr = (((char *)ik->start_of_static_fields()) + static_lock_offset); |
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2156 if (UseCompressedOops) { |
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2157 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2158 } else { |
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2159 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2160 } |
0 | 2161 } |
2162 | |
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2163 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2164 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
113
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2165 char *addr = (((char *)ik->start_of_static_fields()) + static_pending_offset); |
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2166 // XXX This might not be HeapWord aligned, almost rather be char *. |
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2167 return (HeapWord*)addr; |
0 | 2168 } |
2169 | |
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2170 oop java_lang_ref_Reference::pending_list() { |
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2171 char *addr = (char *)pending_list_addr(); |
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2172 if (UseCompressedOops) { |
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2173 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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2174 } else { |
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2175 return oopDesc::load_decode_heap_oop((oop*)addr); |
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2176 } |
0 | 2177 } |
2178 | |
2179 | |
2180 // Support for java_lang_ref_SoftReference | |
2181 | |
2182 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2183 return ref->long_field(timestamp_offset); | |
2184 } | |
2185 | |
2186 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2187 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
0 | 2188 int offset = ik->offset_of_static_fields() + static_clock_offset; |
2189 | |
1142 | 2190 return SystemDictionary::SoftReference_klass()->long_field(offset); |
0 | 2191 } |
2192 | |
2193 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2194 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
0 | 2195 int offset = ik->offset_of_static_fields() + static_clock_offset; |
2196 | |
1142 | 2197 SystemDictionary::SoftReference_klass()->long_field_put(offset, value); |
0 | 2198 } |
2199 | |
2200 | |
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2201 // Support for java_lang_invoke_MethodHandle |
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2202 |
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2203 int java_lang_invoke_MethodHandle::_type_offset; |
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2204 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
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2205 int java_lang_invoke_MethodHandle::_vmentry_offset; |
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2206 int java_lang_invoke_MethodHandle::_vmslots_offset; |
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2207 |
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2208 int java_lang_invoke_MemberName::_clazz_offset; |
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|
2209 int java_lang_invoke_MemberName::_name_offset; |
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2210 int java_lang_invoke_MemberName::_type_offset; |
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|
2211 int java_lang_invoke_MemberName::_flags_offset; |
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2212 int java_lang_invoke_MemberName::_vmtarget_offset; |
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|
2213 int java_lang_invoke_MemberName::_vmindex_offset; |
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2214 |
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2215 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
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|
2216 |
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|
2217 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
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|
2218 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
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|
2219 |
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|
2220 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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|
2221 |
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|
2222 void java_lang_invoke_MethodHandle::compute_offsets() { |
710 | 2223 klassOop k = SystemDictionary::MethodHandle_klass(); |
2224 if (k != NULL && EnableMethodHandles) { | |
2356
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|
2225 bool allow_super = false; |
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|
2226 if (AllowTransitionalJSR292) allow_super = true; // temporary, to access java.dyn.MethodHandleImpl |
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|
2227 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
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2228 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
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2229 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
710 | 2230 |
2231 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
2232 // It is optional pending experiments to keep or toss. | |
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2233 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
710 | 2234 } |
2235 } | |
2236 | |
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2237 void java_lang_invoke_MemberName::compute_offsets() { |
710 | 2238 klassOop k = SystemDictionary::MemberName_klass(); |
2239 if (k != NULL && EnableMethodHandles) { | |
2240 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2241 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2242 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2243 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2244 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
2245 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2246 } | |
2247 } | |
2248 | |
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2249 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2250 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2251 if (k != NULL && EnableMethodHandles) { | |
2252 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); | |
2253 } | |
2254 } | |
2255 | |
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2256 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2257 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
2258 if (k != NULL && EnableMethodHandles) { | |
2259 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); | |
2260 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2261 } | |
2262 } | |
2263 | |
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2264 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2265 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
2266 if (k != NULL && EnableMethodHandles) { | |
2267 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); | |
2268 } | |
2269 } | |
2270 | |
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2271 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2272 return mh->obj_field(_type_offset); |
2273 } | |
2274 | |
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2275 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2276 mh->obj_field_put(_type_offset, mtype); |
2277 } | |
2278 | |
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2279 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2280 int vmslots_offset = _vmslots_offset; |
2281 if (vmslots_offset != 0) { | |
2282 #ifdef ASSERT | |
2283 int x = mh->int_field(vmslots_offset); | |
2284 int y = compute_vmslots(mh); | |
2285 assert(x == y, "correct hoisted value"); | |
2286 #endif | |
2287 return mh->int_field(vmslots_offset); | |
2288 } else { | |
2289 return compute_vmslots(mh); | |
2290 } | |
2291 } | |
2292 | |
2293 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
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2294 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
710 | 2295 int vmslots_offset = _vmslots_offset; |
2296 if (vmslots_offset != 0) { | |
2297 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
2298 } | |
2299 } | |
2300 | |
2301 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2302 // required to carry the arguments of this MH | |
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2303 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
710 | 2304 oop mtype = type(mh); |
2305 if (mtype == NULL) return 0; // Java code would get NPE | |
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2306 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2307 if (form == NULL) return 0; // Java code would get NPE |
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2308 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2309 } |
2310 | |
2311 // fetch the low-level entry point for this mh | |
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2312 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2313 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2314 } | |
2315 | |
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2316 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2317 assert(_vmentry_offset != 0, "must be present"); |
2318 | |
2319 // This is always the final step that initializes a valid method handle: | |
2320 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2321 | |
2322 // There should be enough memory barriers on exit from native methods | |
2323 // to ensure that the MH is fully initialized to all threads before | |
2324 // Java code can publish it in global data structures. | |
2325 // But just in case, we use release_address_field_put. | |
2326 } | |
2327 | |
2328 /// MemberName accessors | |
2329 | |
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2330 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2331 assert(is_instance(mname), "wrong type"); |
2332 return mname->obj_field(_clazz_offset); | |
2333 } | |
2334 | |
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2335 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2336 assert(is_instance(mname), "wrong type"); |
2337 mname->obj_field_put(_clazz_offset, clazz); | |
2338 } | |
2339 | |
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2340 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2341 assert(is_instance(mname), "wrong type"); |
2342 return mname->obj_field(_name_offset); | |
2343 } | |
2344 | |
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|
2345 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2346 assert(is_instance(mname), "wrong type"); |
2347 mname->obj_field_put(_name_offset, name); | |
2348 } | |
2349 | |
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2350 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2351 assert(is_instance(mname), "wrong type"); |
2352 return mname->obj_field(_type_offset); | |
2353 } | |
2354 | |
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2355 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2356 assert(is_instance(mname), "wrong type"); |
2357 mname->obj_field_put(_type_offset, type); | |
2358 } | |
2359 | |
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|
2360 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2361 assert(is_instance(mname), "wrong type"); |
2362 return mname->int_field(_flags_offset); | |
2363 } | |
2364 | |
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2365 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2366 assert(is_instance(mname), "wrong type"); |
2367 mname->int_field_put(_flags_offset, flags); | |
2368 } | |
2369 | |
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|
2370 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2371 assert(is_instance(mname), "wrong type"); |
2372 return mname->obj_field(_vmtarget_offset); | |
2373 } | |
2374 | |
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|
2375 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2376 assert(is_instance(mname), "wrong type"); |
2377 mname->obj_field_put(_vmtarget_offset, ref); | |
2378 } | |
2379 | |
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|
2380 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2381 assert(is_instance(mname), "wrong type"); |
2382 return mname->int_field(_vmindex_offset); | |
2383 } | |
2384 | |
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|
2385 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2386 assert(is_instance(mname), "wrong type"); |
2387 mname->int_field_put(_vmindex_offset, index); | |
2388 } | |
2389 | |
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|
2390 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2391 assert(is_instance(mh), "MH only"); |
2392 return mh->obj_field(_vmtarget_offset); | |
2393 } | |
2394 | |
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|
2395 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2396 assert(is_instance(mh), "MH only"); |
2397 mh->obj_field_put(_vmtarget_offset, ref); | |
2398 } | |
2399 | |
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|
2400 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2401 assert(is_instance(mh), "DMH only"); |
2402 return mh->int_field(_vmindex_offset); | |
2403 } | |
2404 | |
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2405 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2406 assert(is_instance(mh), "DMH only"); |
2407 mh->int_field_put(_vmindex_offset, index); | |
2408 } | |
2409 | |
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2410 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2411 assert(is_instance(mh), "BMH only"); |
2412 return mh->int_field(_vmargslot_offset); | |
2413 } | |
2414 | |
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2415 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2416 assert(is_instance(mh), "BMH only"); |
2417 return mh->obj_field(_argument_offset); | |
2418 } | |
2419 | |
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|
2420 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2421 assert(is_instance(mh), "AMH only"); |
2422 return mh->int_field(_conversion_offset); | |
2423 } | |
2424 | |
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2425 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2426 assert(is_instance(mh), "AMH only"); |
2427 mh->int_field_put(_conversion_offset, conv); | |
2428 } | |
2429 | |
2430 | |
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|
2431 // Support for java_lang_invoke_MethodType |
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2432 |
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|
2433 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2434 int java_lang_invoke_MethodType::_ptypes_offset; |
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|
2435 int java_lang_invoke_MethodType::_form_offset; |
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|
2436 |
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|
2437 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2438 klassOop k = SystemDictionary::MethodType_klass(); |
2439 if (k != NULL) { | |
2440 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2441 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
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2442 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2443 } |
2444 } | |
2445 | |
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|
2446 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2447 st->print("("); |
2448 objArrayOop pts = ptypes(mt); | |
2449 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2450 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2451 } | |
2452 st->print(")"); | |
2453 java_lang_Class::print_signature(rtype(mt), st); | |
2454 } | |
2455 | |
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|
2456 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2457 ResourceMark rm; |
2458 stringStream buffer(128); | |
2459 print_signature(mt, &buffer); | |
2460 const char* sigstr = buffer.base(); | |
2461 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
2462 Symbol *name; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2463 if (!intern_if_not_found) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2464 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2465 } else { |
3582bf76420e
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diff
changeset
|
2466 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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diff
changeset
|
2467 } |
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diff
changeset
|
2468 return name; |
710 | 2469 } |
2470 | |
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changeset
|
2471 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2472 assert(is_instance(mt), "must be a MethodType"); |
2473 return mt->obj_field(_rtype_offset); | |
2474 } | |
2475 | |
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|
2476 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2477 assert(is_instance(mt), "must be a MethodType"); |
2478 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2479 } | |
2480 | |
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|
2481 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2482 assert(is_instance(mt), "must be a MethodType"); |
2483 return mt->obj_field(_form_offset); | |
2484 } | |
2485 | |
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|
2486 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2487 return ptypes(mt)->obj_at(idx); |
2488 } | |
2489 | |
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changeset
|
2490 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
|
2491 return ptypes(mt)->length(); |
aa62b9388fce
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diff
changeset
|
2492 } |
aa62b9388fce
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diff
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|
2493 |
710 | 2494 |
2495 | |
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|
2496 // Support for java_lang_invoke_MethodTypeForm |
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|
2497 |
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diff
changeset
|
2498 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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diff
changeset
|
2499 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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diff
changeset
|
2500 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
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|
2501 |
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2356
diff
changeset
|
2502 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2503 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2504 if (k != NULL) { | |
2505 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
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diff
changeset
|
2506 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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parents:
2356
diff
changeset
|
2507 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
|
2508 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
710 | 2509 } |
2510 } | |
2511 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2512 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2513 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2514 return mtform->int_field(_vmslots_offset); | |
2515 } | |
2516 | |
2357
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jrose
parents:
2356
diff
changeset
|
2517 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2518 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2519 return mtform->obj_field(_erasedType_offset); | |
2520 } | |
2521 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2522 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
|
2523 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
|
2524 return mtform->obj_field(_genericInvoker_offset); |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2525 } |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2526 |
710 | 2527 |
2357
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jrose
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2356
diff
changeset
|
2528 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2529 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2530 int java_lang_invoke_CallSite::_target_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2531 |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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parents:
2356
diff
changeset
|
2532 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2533 if (!EnableInvokeDynamic) return; |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2534 klassOop k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2535 if (k != NULL) { |
2357
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jrose
parents:
2356
diff
changeset
|
2536 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
|
2537 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2538 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2539 |
2357
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2356
diff
changeset
|
2540 oop java_lang_invoke_CallSite::target(oop site) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2541 return site->obj_field(_target_offset); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2542 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2543 |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2544 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
|
2545 site->obj_field_put(_target_offset, target); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2546 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2547 |
710 | 2548 |
0 | 2549 // Support for java_security_AccessControlContext |
2550 | |
2551 int java_security_AccessControlContext::_context_offset = 0; | |
2552 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2553 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2554 | |
2555 void java_security_AccessControlContext::compute_offsets() { | |
2556 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2557 fieldDescriptor fd; | |
2558 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2559 | |
2560 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2561 fatal("Invalid layout of java.security.AccessControlContext"); | |
2562 } | |
2563 _context_offset = fd.offset(); | |
2564 | |
2565 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2566 fatal("Invalid layout of java.security.AccessControlContext"); | |
2567 } | |
2568 _privilegedContext_offset = fd.offset(); | |
2569 | |
2570 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2571 fatal("Invalid layout of java.security.AccessControlContext"); | |
2572 } | |
2573 _isPrivileged_offset = fd.offset(); | |
2574 } | |
2575 | |
2576 | |
2577 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2578 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2579 // Ensure klass is initialized | |
2580 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2581 // Allocate result | |
2582 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2583 // Fill in values | |
2584 result->obj_field_put(_context_offset, context()); | |
2585 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2586 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2587 return result; | |
2588 } | |
2589 | |
2590 | |
2591 // Support for java_lang_ClassLoader | |
2592 | |
2593 oop java_lang_ClassLoader::parent(oop loader) { | |
2594 assert(loader->is_oop(), "loader must be oop"); | |
2595 return loader->obj_field(parent_offset); | |
2596 } | |
2597 | |
2598 | |
2599 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
2600 // Fix for 4474172; see evaluation for more details | |
2601 loader = non_reflection_class_loader(loader); | |
2602 | |
2603 oop cl = SystemDictionary::java_system_loader(); | |
2604 while(cl != NULL) { | |
2605 if (cl == loader) return true; | |
2606 cl = parent(cl); | |
2607 } | |
2608 return false; | |
2609 } | |
2610 | |
2611 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2612 if (loader != NULL) { | |
2613 // See whether this is one of the class loaders associated with | |
2614 // the generated bytecodes for reflection, and if so, "magically" | |
2615 // delegate to its parent to prevent class loading from occurring | |
2616 // in places where applications using reflection didn't expect it. | |
1142 | 2617 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2618 // This might be null in non-1.4 JDKs |
2619 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2620 return parent(loader); | |
2621 } | |
2622 } | |
2623 return loader; | |
2624 } | |
2625 | |
2626 | |
2627 // Support for java_lang_System | |
2628 | |
2629 void java_lang_System::compute_offsets() { | |
2630 assert(offset_of_static_fields == 0, "offsets should be initialized only once"); | |
2631 | |
1142 | 2632 instanceKlass* ik = instanceKlass::cast(SystemDictionary::System_klass()); |
0 | 2633 offset_of_static_fields = ik->offset_of_static_fields(); |
2634 } | |
2635 | |
2636 int java_lang_System::in_offset_in_bytes() { | |
2637 return (offset_of_static_fields + static_in_offset); | |
2638 } | |
2639 | |
2640 | |
2641 int java_lang_System::out_offset_in_bytes() { | |
2642 return (offset_of_static_fields + static_out_offset); | |
2643 } | |
2644 | |
2645 | |
2646 int java_lang_System::err_offset_in_bytes() { | |
2647 return (offset_of_static_fields + static_err_offset); | |
2648 } | |
2649 | |
2650 | |
2651 | |
2652 int java_lang_String::value_offset; | |
2653 int java_lang_String::offset_offset; | |
2654 int java_lang_String::count_offset; | |
2655 int java_lang_String::hash_offset; | |
2656 int java_lang_Class::klass_offset; | |
2657 int java_lang_Class::array_klass_offset; | |
2658 int java_lang_Class::resolved_constructor_offset; | |
2659 int java_lang_Class::number_of_fake_oop_fields; | |
2660 int java_lang_Throwable::backtrace_offset; | |
2661 int java_lang_Throwable::detailMessage_offset; | |
2662 int java_lang_Throwable::cause_offset; | |
2663 int java_lang_Throwable::stackTrace_offset; | |
2664 int java_lang_reflect_AccessibleObject::override_offset; | |
2665 int java_lang_reflect_Method::clazz_offset; | |
2666 int java_lang_reflect_Method::name_offset; | |
2667 int java_lang_reflect_Method::returnType_offset; | |
2668 int java_lang_reflect_Method::parameterTypes_offset; | |
2669 int java_lang_reflect_Method::exceptionTypes_offset; | |
2670 int java_lang_reflect_Method::slot_offset; | |
2671 int java_lang_reflect_Method::modifiers_offset; | |
2672 int java_lang_reflect_Method::signature_offset; | |
2673 int java_lang_reflect_Method::annotations_offset; | |
2674 int java_lang_reflect_Method::parameter_annotations_offset; | |
2675 int java_lang_reflect_Method::annotation_default_offset; | |
2676 int java_lang_reflect_Constructor::clazz_offset; | |
2677 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2678 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2679 int java_lang_reflect_Constructor::slot_offset; | |
2680 int java_lang_reflect_Constructor::modifiers_offset; | |
2681 int java_lang_reflect_Constructor::signature_offset; | |
2682 int java_lang_reflect_Constructor::annotations_offset; | |
2683 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2684 int java_lang_reflect_Field::clazz_offset; | |
2685 int java_lang_reflect_Field::name_offset; | |
2686 int java_lang_reflect_Field::type_offset; | |
2687 int java_lang_reflect_Field::slot_offset; | |
2688 int java_lang_reflect_Field::modifiers_offset; | |
2689 int java_lang_reflect_Field::signature_offset; | |
2690 int java_lang_reflect_Field::annotations_offset; | |
2691 int java_lang_boxing_object::value_offset; | |
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2692 int java_lang_boxing_object::long_value_offset; |
0 | 2693 int java_lang_ref_Reference::referent_offset; |
2694 int java_lang_ref_Reference::queue_offset; | |
2695 int java_lang_ref_Reference::next_offset; | |
2696 int java_lang_ref_Reference::discovered_offset; | |
2697 int java_lang_ref_Reference::static_lock_offset; | |
2698 int java_lang_ref_Reference::static_pending_offset; | |
2699 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2700 int java_lang_ref_SoftReference::timestamp_offset; | |
2701 int java_lang_ref_SoftReference::static_clock_offset; | |
2702 int java_lang_ClassLoader::parent_offset; | |
2703 int java_lang_System::offset_of_static_fields; | |
2704 int java_lang_System::static_in_offset; | |
2705 int java_lang_System::static_out_offset; | |
2706 int java_lang_System::static_err_offset; | |
2707 int java_lang_StackTraceElement::declaringClass_offset; | |
2708 int java_lang_StackTraceElement::methodName_offset; | |
2709 int java_lang_StackTraceElement::fileName_offset; | |
2710 int java_lang_StackTraceElement::lineNumber_offset; | |
2711 int java_lang_AssertionStatusDirectives::classes_offset; | |
2712 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2713 int java_lang_AssertionStatusDirectives::packages_offset; | |
2714 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2715 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2716 int java_nio_Buffer::_limit_offset; | |
2717 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2718 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2719 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2720 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2721 | |
2722 | |
2723 // Support for java_lang_StackTraceElement | |
2724 | |
2725 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2726 element->obj_field_put(fileName_offset, value); | |
2727 } | |
2728 | |
2729 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2730 element->obj_field_put(declaringClass_offset, value); | |
2731 } | |
2732 | |
2733 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2734 element->obj_field_put(methodName_offset, value); | |
2735 } | |
2736 | |
2737 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2738 element->int_field_put(lineNumber_offset, value); | |
2739 } | |
2740 | |
2741 | |
2742 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2743 | |
2744 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2745 o->obj_field_put(classes_offset, val); | |
2746 } | |
2747 | |
2748 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2749 o->obj_field_put(classEnabled_offset, val); | |
2750 } | |
2751 | |
2752 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2753 o->obj_field_put(packages_offset, val); | |
2754 } | |
2755 | |
2756 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2757 o->obj_field_put(packageEnabled_offset, val); | |
2758 } | |
2759 | |
2760 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2761 o->bool_field_put(deflt_offset, val); | |
2762 } | |
2763 | |
2764 | |
2765 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2766 int java_nio_Buffer::limit_offset() { | |
2767 return _limit_offset; | |
2768 } | |
2769 | |
2770 | |
2771 void java_nio_Buffer::compute_offsets() { | |
2772 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
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2773 assert(k != NULL, "must be loaded in 1.4+"); |
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2774 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2775 } |
2776 | |
2777 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2778 int sun_misc_AtomicLongCSImpl::value_offset() { | |
2779 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
2780 return _value_offset; | |
2781 } | |
2782 | |
2783 | |
2784 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
2785 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
2786 // If this class is not present, its value field offset won't be referenced. | |
2787 if (k != NULL) { | |
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2788 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2789 } |
2790 } | |
2791 | |
2792 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2793 if (_owner_offset != 0) return; | |
2794 | |
2795 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2796 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2797 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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2798 compute_offset(_owner_offset, k, |
0 | 2799 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2800 } | |
2801 | |
2802 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2803 assert(_owner_offset != 0, "Must be initialized"); | |
2804 return obj->obj_field(_owner_offset); | |
2805 } | |
2806 | |
2807 // Compute hard-coded offsets | |
2808 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2809 // are not available to determine the offset_of_static_fields. | |
2810 void JavaClasses::compute_hard_coded_offsets() { | |
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2811 const int x = heapOopSize; |
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2812 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2813 |
2814 // Do the String Class | |
2815 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2816 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2817 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2818 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2819 | |
2820 // Do the Class Class | |
2821 java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header; | |
2822 java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header; | |
2823 java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header; | |
2824 | |
2825 // This is NOT an offset | |
2826 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
2827 | |
2828 // Throwable Class | |
2829 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2830 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2831 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2832 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
2833 | |
2834 // java_lang_boxing_object | |
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2835 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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2836 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 2837 |
2838 // java_lang_ref_Reference: | |
2839 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
2840 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
2841 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
2842 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
2843 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
2844 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
2845 // Artificial fields for java_lang_ref_Reference | |
2846 // The first field is for the discovered field added in 1.4 | |
2847 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
2848 | |
2849 // java_lang_ref_SoftReference Class | |
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2850 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 2851 // Don't multiply static fields because they are always in wordSize units |
2852 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
2853 | |
2854 // java_lang_ClassLoader | |
2855 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
2856 | |
2857 // java_lang_System | |
2858 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
2859 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
2860 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
2861 | |
2862 // java_lang_StackTraceElement | |
2863 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
2864 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
2865 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
2866 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
2867 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
2868 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
2869 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
2870 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
2871 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
2872 | |
2873 } | |
2874 | |
2875 | |
2876 // Compute non-hard-coded field offsets of all the classes in this file | |
2877 void JavaClasses::compute_offsets() { | |
2878 | |
2879 java_lang_Class::compute_offsets(); | |
2880 java_lang_System::compute_offsets(); | |
2881 java_lang_Thread::compute_offsets(); | |
2882 java_lang_ThreadGroup::compute_offsets(); | |
710 | 2883 if (EnableMethodHandles) { |
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2884 java_lang_invoke_MethodHandle::compute_offsets(); |
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2885 java_lang_invoke_MemberName::compute_offsets(); |
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2886 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
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2887 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
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2888 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
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2889 java_lang_invoke_MethodType::compute_offsets(); |
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2890 java_lang_invoke_MethodTypeForm::compute_offsets(); |
710 | 2891 } |
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2892 if (EnableInvokeDynamic) { |
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2893 java_lang_invoke_CallSite::compute_offsets(); |
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2894 } |
0 | 2895 java_security_AccessControlContext::compute_offsets(); |
2896 // Initialize reflection classes. The layouts of these classes | |
2897 // changed with the new reflection implementation in JDK 1.4, and | |
2898 // since the Universe doesn't know what JDK version it is until this | |
2899 // point we defer computation of these offsets until now. | |
2900 java_lang_reflect_AccessibleObject::compute_offsets(); | |
2901 java_lang_reflect_Method::compute_offsets(); | |
2902 java_lang_reflect_Constructor::compute_offsets(); | |
2903 java_lang_reflect_Field::compute_offsets(); | |
2904 if (JDK_Version::is_gte_jdk14x_version()) { | |
2905 java_nio_Buffer::compute_offsets(); | |
2906 } | |
2907 if (JDK_Version::is_gte_jdk15x_version()) { | |
2908 sun_reflect_ConstantPool::compute_offsets(); | |
2909 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
2910 } | |
2911 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 2912 |
2913 // generated interpreter code wants to know about the offsets we just computed: | |
2914 AbstractAssembler::update_delayed_values(); | |
0 | 2915 } |
2916 | |
2917 #ifndef PRODUCT | |
2918 | |
2919 // These functions exist to assert the validity of hard-coded field offsets to guard | |
2920 // against changes in the class files | |
2921 | |
2922 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
2923 EXCEPTION_MARK; | |
2924 fieldDescriptor fd; | |
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|
2925 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 2926 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
2927 instanceKlassHandle h_klass (THREAD, k); | |
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2928 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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2929 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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2930 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 2931 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
2932 return false; | |
2933 } | |
2934 if (fd.is_static()) { | |
2935 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
2936 return false; | |
2937 } | |
2938 if (fd.offset() == hardcoded_offset ) { | |
2939 return true; | |
2940 } else { | |
2941 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
2942 klass_name, field_name, hardcoded_offset, fd.offset()); | |
2943 return false; | |
2944 } | |
2945 } | |
2946 | |
2947 | |
2948 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
2949 EXCEPTION_MARK; | |
2950 fieldDescriptor fd; | |
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|
2951 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 2952 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
2953 instanceKlassHandle h_klass (THREAD, k); | |
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2954 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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|
2955 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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2956 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 2957 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
2958 return false; | |
2959 } | |
2960 if (!fd.is_static()) { | |
2961 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
2962 return false; | |
2963 } | |
2964 if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) { | |
2965 return true; | |
2966 } else { | |
2967 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - h_klass->offset_of_static_fields()); | |
2968 return false; | |
2969 } | |
2970 } | |
2971 | |
2972 | |
132
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2973 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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2974 EXCEPTION_MARK; |
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2975 fieldDescriptor fd; |
2177
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2976 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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2977 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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2978 instanceKlassHandle h_klass (THREAD, k); |
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2979 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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2980 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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2981 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
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2982 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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2983 return false; |
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2984 } |
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2985 if (!fd.is_static() || !fd.has_initial_value()) { |
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2986 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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2987 return false; |
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2988 } |
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2989 if (!fd.initial_value_tag().is_int()) { |
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2990 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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2991 return false; |
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2992 } |
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2993 jint field_value = fd.int_initial_value(); |
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2994 if (field_value == hardcoded_constant) { |
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2995 return true; |
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2996 } else { |
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2997 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
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2998 return false; |
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2999 } |
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3000 } |
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3001 |
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3002 |
0 | 3003 // Check the hard-coded field offsets of all the classes in this file |
3004 | |
3005 void JavaClasses::check_offsets() { | |
3006 bool valid = true; | |
3007 | |
3008 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3009 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3010 | |
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3011 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3012 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3013 |
0 | 3014 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3015 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3016 | |
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3017 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3018 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3019 |
0 | 3020 // java.lang.String |
3021 | |
3022 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3023 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3024 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3025 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3026 | |
3027 // java.lang.Class | |
3028 | |
3029 // Fake fields | |
3030 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3031 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3032 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3033 | |
3034 // java.lang.Throwable | |
3035 | |
3036 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3037 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3038 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3039 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3040 | |
3041 // Boxed primitive objects (java_lang_boxing_object) | |
3042 | |
3043 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3044 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3045 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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3046 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3047 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3048 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3049 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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3050 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3051 |
3052 // java.lang.ClassLoader | |
3053 | |
3054 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3055 | |
3056 // java.lang.System | |
3057 | |
3058 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3059 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3060 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3061 | |
3062 // java.lang.StackTraceElement | |
3063 | |
3064 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3065 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3066 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3067 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3068 | |
3069 // java.lang.ref.Reference | |
3070 | |
3071 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3072 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3073 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3074 // Fake field | |
3075 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3076 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3077 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3078 | |
3079 // java.lang.ref.SoftReference | |
3080 | |
3081 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3082 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3083 | |
3084 // java.lang.AssertionStatusDirectives | |
3085 // | |
3086 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3087 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3088 // into merlin "for some time." Without it, the vm will fail with early | |
3089 // merlin builds. | |
3090 | |
3091 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3092 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3093 const char* sig = "[Ljava/lang/String;"; | |
3094 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3095 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3096 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3097 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3098 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3099 } | |
3100 | |
3101 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3102 } | |
3103 | |
3104 #endif // PRODUCT | |
3105 | |
3106 void javaClasses_init() { | |
3107 JavaClasses::compute_offsets(); | |
3108 JavaClasses::check_offsets(); | |
3109 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3110 } |