Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 7176:59c790074993
8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer.
Reviewed-by: dholmes, sspitsyn, dcubed, jmasa
author | coleenp |
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date | Wed, 28 Nov 2012 17:50:21 -0500 |
parents | 80e866b1d053 |
children | 2cb439954abf f34d701e952e |
rev | line source |
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0 | 1 /* |
6057 | 2 * Copyright (c) 1997, 2012, 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" |
6162 | 26 #include "classfile/altHashing.hpp" |
1972 | 27 #include "classfile/javaClasses.hpp" |
28 #include "classfile/symbolTable.hpp" | |
29 #include "classfile/vmSymbols.hpp" | |
30 #include "code/debugInfo.hpp" | |
31 #include "code/pcDesc.hpp" | |
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32 #include "compiler/compilerOracle.hpp" |
1972 | 33 #include "interpreter/interpreter.hpp" |
34 #include "memory/oopFactory.hpp" | |
35 #include "memory/resourceArea.hpp" | |
36 #include "memory/universe.inline.hpp" | |
3938 | 37 #include "oops/fieldStreams.hpp" |
1972 | 38 #include "oops/instanceKlass.hpp" |
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39 #include "oops/instanceMirrorKlass.hpp" |
1972 | 40 #include "oops/klass.hpp" |
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41 #include "oops/method.hpp" |
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42 #include "oops/symbol.hpp" |
1972 | 43 #include "oops/typeArrayOop.hpp" |
44 #include "runtime/fieldDescriptor.hpp" | |
45 #include "runtime/handles.inline.hpp" | |
46 #include "runtime/interfaceSupport.hpp" | |
47 #include "runtime/java.hpp" | |
48 #include "runtime/javaCalls.hpp" | |
49 #include "runtime/safepoint.hpp" | |
50 #include "runtime/vframe.hpp" | |
51 #include "utilities/preserveException.hpp" | |
52 #ifdef TARGET_OS_FAMILY_linux | |
53 # include "thread_linux.inline.hpp" | |
54 #endif | |
55 #ifdef TARGET_OS_FAMILY_solaris | |
56 # include "thread_solaris.inline.hpp" | |
57 #endif | |
58 #ifdef TARGET_OS_FAMILY_windows | |
59 # include "thread_windows.inline.hpp" | |
60 #endif | |
3960 | 61 #ifdef TARGET_OS_FAMILY_bsd |
62 # include "thread_bsd.inline.hpp" | |
63 #endif | |
0 | 64 |
3938 | 65 #define INJECTED_FIELD_COMPUTE_OFFSET(klass, name, signature, may_be_java) \ |
66 klass::_##name##_offset = JavaClasses::compute_injected_offset(JavaClasses::klass##_##name##_enum); | |
67 | |
68 #define DECLARE_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
69 { SystemDictionary::WK_KLASS_ENUM_NAME(klass), vmSymbols::VM_SYMBOL_ENUM_NAME(name##_name), vmSymbols::VM_SYMBOL_ENUM_NAME(signature), may_be_java }, | |
70 | |
71 InjectedField JavaClasses::_injected_fields[] = { | |
72 ALL_INJECTED_FIELDS(DECLARE_INJECTED_FIELD) | |
73 }; | |
74 | |
75 int JavaClasses::compute_injected_offset(InjectedFieldID id) { | |
76 return _injected_fields[id].compute_offset(); | |
77 } | |
78 | |
79 | |
80 InjectedField* JavaClasses::get_injected(Symbol* class_name, int* field_count) { | |
81 *field_count = 0; | |
82 | |
83 vmSymbols::SID sid = vmSymbols::find_sid(class_name); | |
84 if (sid == vmSymbols::NO_SID) { | |
85 // Only well known classes can inject fields | |
86 return NULL; | |
87 } | |
88 | |
89 int count = 0; | |
90 int start = -1; | |
91 | |
92 #define LOOKUP_INJECTED_FIELD(klass, name, signature, may_be_java) \ | |
93 if (sid == vmSymbols::VM_SYMBOL_ENUM_NAME(klass)) { \ | |
94 count++; \ | |
95 if (start == -1) start = klass##_##name##_enum; \ | |
96 } | |
97 ALL_INJECTED_FIELDS(LOOKUP_INJECTED_FIELD); | |
98 #undef LOOKUP_INJECTED_FIELD | |
99 | |
100 if (start != -1) { | |
101 *field_count = count; | |
102 return _injected_fields + start; | |
103 } | |
104 return NULL; | |
105 } | |
106 | |
107 | |
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108 static bool find_field(InstanceKlass* ik, |
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109 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 110 fieldDescriptor* fd, |
111 bool allow_super = false) { | |
112 if (allow_super) | |
113 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
114 else | |
115 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
116 } | |
117 | |
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118 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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119 static void |
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120 compute_offset(int &dest_offset, |
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121 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 122 bool allow_super = false) { |
132
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123 fieldDescriptor fd; |
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124 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 125 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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126 ResourceMark rm; |
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127 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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128 #ifndef PRODUCT |
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129 klass_oop->print(); |
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130 tty->print_cr("all fields:"); |
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131 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
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132 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
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133 } |
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134 #endif //PRODUCT |
132
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135 fatal("Invalid layout of preloaded class"); |
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136 } |
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137 dest_offset = fd.offset(); |
0 | 138 } |
139 | |
140 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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141 static void |
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142 compute_optional_offset(int& dest_offset, |
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143 Klass* klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 144 bool allow_super = false) { |
132
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145 fieldDescriptor fd; |
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146 InstanceKlass* ik = InstanceKlass::cast(klass_oop); |
710 | 147 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
132
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148 dest_offset = fd.offset(); |
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149 } |
0 | 150 } |
151 | |
710 | 152 |
6057 | 153 int java_lang_String::value_offset = 0; |
154 int java_lang_String::offset_offset = 0; | |
155 int java_lang_String::count_offset = 0; | |
156 int java_lang_String::hash_offset = 0; | |
157 | |
158 bool java_lang_String::initialized = false; | |
159 | |
160 void java_lang_String::compute_offsets() { | |
161 assert(!initialized, "offsets should be initialized only once"); | |
162 | |
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163 Klass* k = SystemDictionary::String_klass(); |
6057 | 164 compute_offset(value_offset, k, vmSymbols::value_name(), vmSymbols::char_array_signature()); |
165 compute_optional_offset(offset_offset, k, vmSymbols::offset_name(), vmSymbols::int_signature()); | |
166 compute_optional_offset(count_offset, k, vmSymbols::count_name(), vmSymbols::int_signature()); | |
167 compute_optional_offset(hash_offset, k, vmSymbols::hash_name(), vmSymbols::int_signature()); | |
168 | |
169 initialized = true; | |
170 } | |
171 | |
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172 Handle java_lang_String::basic_create(int length, TRAPS) { |
6057 | 173 assert(initialized, "Must be initialized"); |
0 | 174 // Create the String object first, so there's a chance that the String |
175 // and the char array it points to end up in the same cache line. | |
176 oop obj; | |
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177 obj = InstanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 178 |
179 // Create the char array. The String object must be handlized here | |
180 // because GC can happen as a result of the allocation attempt. | |
181 Handle h_obj(THREAD, obj); | |
182 typeArrayOop buffer; | |
183 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
184 | |
185 // Point the String at the char array | |
186 obj = h_obj(); | |
187 set_value(obj, buffer); | |
188 // No need to zero the offset, allocation zero'ed the entire String object | |
189 assert(offset(obj) == 0, "initial String offset should be zero"); | |
190 //set_offset(obj, 0); | |
191 set_count(obj, length); | |
192 | |
193 return h_obj; | |
194 } | |
195 | |
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196 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { |
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197 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 198 typeArrayOop buffer = value(h_obj()); |
199 for (int index = 0; index < length; index++) { | |
200 buffer->char_at_put(index, unicode[index]); | |
201 } | |
202 return h_obj; | |
203 } | |
204 | |
205 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
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206 Handle h_obj = create_from_unicode(unicode, length, CHECK_0); |
0 | 207 return h_obj(); |
208 } | |
209 | |
210 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
211 if (utf8_str == NULL) { | |
212 return Handle(); | |
213 } | |
214 int length = UTF8::unicode_length(utf8_str); | |
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215 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 216 if (length > 0) { |
217 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
218 } | |
219 return h_obj; | |
220 } | |
221 | |
222 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
223 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
224 return h_obj(); | |
225 } | |
226 | |
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227 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 228 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
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229 Handle h_obj = basic_create(length, CHECK_NH); |
0 | 230 if (length > 0) { |
231 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
232 } | |
233 return h_obj; | |
234 } | |
235 | |
236 // Converts a C string to a Java String based on current encoding | |
237 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
238 assert(str != NULL, "bad arguments"); | |
239 | |
240 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
241 static to_java_string_fn_t _to_java_string_fn = NULL; | |
242 | |
243 if (_to_java_string_fn == NULL) { | |
244 void *lib_handle = os::native_java_library(); | |
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245 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 246 if (_to_java_string_fn == NULL) { |
247 fatal("NewStringPlatform missing"); | |
248 } | |
249 } | |
250 | |
251 jstring js = NULL; | |
252 { JavaThread* thread = (JavaThread*)THREAD; | |
253 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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254 HandleMark hm(thread); |
0 | 255 ThreadToNativeFromVM ttn(thread); |
256 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
257 } | |
258 return Handle(THREAD, JNIHandles::resolve(js)); | |
259 } | |
260 | |
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261 // Converts a Java String to a native C string that can be used for |
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262 // native OS calls. |
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263 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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264 |
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265 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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266 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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267 |
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268 if (_to_platform_string_fn == NULL) { |
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269 void *lib_handle = os::native_java_library(); |
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270 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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271 if (_to_platform_string_fn == NULL) { |
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272 fatal("GetStringPlatformChars missing"); |
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273 } |
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274 } |
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275 |
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276 char *native_platform_string; |
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277 { JavaThread* thread = (JavaThread*)THREAD; |
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278 assert(thread->is_Java_thread(), "must be java thread"); |
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279 JNIEnv *env = thread->jni_environment(); |
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280 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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281 bool is_copy; |
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282 HandleMark hm(thread); |
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283 ThreadToNativeFromVM ttn(thread); |
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284 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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285 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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286 JNIHandles::destroy_local(js); |
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287 } |
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288 return native_platform_string; |
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289 } |
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290 |
0 | 291 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
292 oop obj = java_string(); | |
293 // Typical usage is to convert all '/' to '.' in string. | |
294 typeArrayOop value = java_lang_String::value(obj); | |
295 int offset = java_lang_String::offset(obj); | |
296 int length = java_lang_String::length(obj); | |
297 | |
298 // First check if any from_char exist | |
299 int index; // Declared outside, used later | |
300 for (index = 0; index < length; index++) { | |
301 if (value->char_at(index + offset) == from_char) { | |
302 break; | |
303 } | |
304 } | |
305 if (index == length) { | |
306 // No from_char, so do not copy. | |
307 return java_string; | |
308 } | |
309 | |
310 // Create new UNICODE buffer. Must handlize value because GC | |
311 // may happen during String and char array creation. | |
312 typeArrayHandle h_value(THREAD, value); | |
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313 Handle string = basic_create(length, CHECK_NH); |
0 | 314 |
315 typeArrayOop from_buffer = h_value(); | |
316 typeArrayOop to_buffer = java_lang_String::value(string()); | |
317 | |
318 // Copy contents | |
319 for (index = 0; index < length; index++) { | |
320 jchar c = from_buffer->char_at(index + offset); | |
321 if (c == from_char) { | |
322 c = to_char; | |
323 } | |
324 to_buffer->char_at_put(index, c); | |
325 } | |
326 return string; | |
327 } | |
328 | |
329 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
330 typeArrayOop value = java_lang_String::value(java_string); | |
331 int offset = java_lang_String::offset(java_string); | |
332 length = java_lang_String::length(java_string); | |
333 | |
334 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
335 for (int index = 0; index < length; index++) { | |
336 result[index] = value->char_at(index + offset); | |
337 } | |
338 return result; | |
339 } | |
340 | |
6162 | 341 unsigned int java_lang_String::to_hash(oop java_string) { |
342 int length = java_lang_String::length(java_string); | |
343 // Zero length string will hash to zero with String.toHash() function. | |
344 if (length == 0) return 0; | |
345 | |
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346 typeArrayOop value = java_lang_String::value(java_string); |
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347 int offset = java_lang_String::offset(java_string); |
6162 | 348 return java_lang_String::to_hash(value->char_at_addr(offset), length); |
349 } | |
350 | |
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351 char* java_lang_String::as_quoted_ascii(oop java_string) { |
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352 typeArrayOop value = java_lang_String::value(java_string); |
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353 int offset = java_lang_String::offset(java_string); |
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354 int length = java_lang_String::length(java_string); |
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355 |
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356 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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357 if (base == NULL) return NULL; |
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358 |
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359 int result_length = UNICODE::quoted_ascii_length(base, length) + 1; |
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360 char* result = NEW_RESOURCE_ARRAY(char, result_length); |
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361 UNICODE::as_quoted_ascii(base, length, result, result_length); |
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362 assert(result_length >= length + 1, "must not be shorter"); |
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363 assert(result_length == (int)strlen(result) + 1, "must match"); |
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364 return result; |
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365 } |
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366 |
6162 | 367 unsigned int java_lang_String::hash_string(oop java_string) { |
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368 int length = java_lang_String::length(java_string); |
6162 | 369 // Zero length string doesn't hash necessarily hash to zero. |
370 if (length == 0) { | |
371 return StringTable::hash_string(NULL, 0); | |
372 } | |
373 | |
374 typeArrayOop value = java_lang_String::value(java_string); | |
375 int offset = java_lang_String::offset(java_string); | |
376 return StringTable::hash_string(value->char_at_addr(offset), length); | |
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377 } |
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378 |
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379 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 380 oop obj = java_string(); |
381 typeArrayOop value = java_lang_String::value(obj); | |
382 int offset = java_lang_String::offset(obj); | |
383 int length = java_lang_String::length(obj); | |
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384 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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385 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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386 return sym; |
0 | 387 } |
388 | |
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389 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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390 typeArrayOop value = java_lang_String::value(java_string); |
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391 int offset = java_lang_String::offset(java_string); |
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392 int length = java_lang_String::length(java_string); |
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393 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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394 return SymbolTable::probe_unicode(base, length); |
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395 } |
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396 |
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397 |
0 | 398 int java_lang_String::utf8_length(oop java_string) { |
399 typeArrayOop value = java_lang_String::value(java_string); | |
400 int offset = java_lang_String::offset(java_string); | |
401 int length = java_lang_String::length(java_string); | |
402 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
403 return UNICODE::utf8_length(position, length); | |
404 } | |
405 | |
406 char* java_lang_String::as_utf8_string(oop java_string) { | |
407 typeArrayOop value = java_lang_String::value(java_string); | |
408 int offset = java_lang_String::offset(java_string); | |
409 int length = java_lang_String::length(java_string); | |
410 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
411 return UNICODE::as_utf8(position, length); | |
412 } | |
413 | |
1989
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6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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414 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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415 typeArrayOop value = java_lang_String::value(java_string); |
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416 int offset = java_lang_String::offset(java_string); |
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417 int length = java_lang_String::length(java_string); |
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418 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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419 return UNICODE::as_utf8(position, length, buf, buflen); |
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6539281: -Xcheck:jni should validate char* argument to ReleaseStringUTFChars
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|
420 } |
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421 |
0 | 422 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
423 typeArrayOop value = java_lang_String::value(java_string); | |
424 int offset = java_lang_String::offset(java_string); | |
425 int length = java_lang_String::length(java_string); | |
426 assert(start + len <= length, "just checking"); | |
427 jchar* position = value->char_at_addr(offset + start); | |
428 return UNICODE::as_utf8(position, len); | |
429 } | |
430 | |
431 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
6867 | 432 assert(java_string->klass() == SystemDictionary::String_klass(), |
0 | 433 "must be java_string"); |
434 typeArrayOop value = java_lang_String::value(java_string); | |
435 int offset = java_lang_String::offset(java_string); | |
436 int length = java_lang_String::length(java_string); | |
437 if (length != len) { | |
438 return false; | |
439 } | |
440 for (int i = 0; i < len; i++) { | |
441 if (value->char_at(i + offset) != chars[i]) { | |
442 return false; | |
443 } | |
444 } | |
445 return true; | |
446 } | |
447 | |
448 void java_lang_String::print(Handle java_string, outputStream* st) { | |
449 oop obj = java_string(); | |
1142 | 450 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 451 typeArrayOop value = java_lang_String::value(obj); |
452 int offset = java_lang_String::offset(obj); | |
453 int length = java_lang_String::length(obj); | |
454 | |
455 int end = MIN2(length, 100); | |
456 if (value == NULL) { | |
457 // This can happen if, e.g., printing a String | |
458 // object before its initializer has been called | |
459 st->print_cr("NULL"); | |
460 } else { | |
461 st->print("\""); | |
462 for (int index = 0; index < length; index++) { | |
463 st->print("%c", value->char_at(index + offset)); | |
464 } | |
465 st->print("\""); | |
466 } | |
467 } | |
468 | |
2376
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469 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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470 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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471 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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472 if (fd->has_initial_value()) { |
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473 BasicType t = fd->field_type(); |
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474 switch (t) { |
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475 case T_BYTE: |
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476 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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477 break; |
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478 case T_BOOLEAN: |
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479 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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480 break; |
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481 case T_CHAR: |
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482 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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483 break; |
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484 case T_SHORT: |
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485 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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486 break; |
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487 case T_INT: |
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488 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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489 break; |
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490 case T_FLOAT: |
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491 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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492 break; |
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493 case T_DOUBLE: |
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494 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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495 break; |
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496 case T_LONG: |
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497 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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498 break; |
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499 case T_OBJECT: |
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500 { |
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501 #ifdef ASSERT |
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502 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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503 assert(fd->signature() == sym, "just checking"); |
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504 #endif |
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505 oop string = fd->string_initial_value(CHECK); |
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506 mirror()->obj_field_put(fd->offset(), string); |
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507 } |
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508 break; |
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509 default: |
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510 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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511 "Illegal ConstantValue attribute in class file"); |
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512 } |
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513 } |
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514 } |
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515 |
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516 |
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517 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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518 assert(InstanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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519 |
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520 // If the offset was read from the shared archive, it was fixed up already |
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521 if (!k->is_shared()) { |
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522 if (k->oop_is_instance()) { |
3938 | 523 // During bootstrap, java.lang.Class wasn't loaded so static field |
524 // offsets were computed without the size added it. Go back and | |
525 // update all the static field offsets to included the size. | |
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526 for (JavaFieldStream fs(InstanceKlass::cast(k())); !fs.done(); fs.next()) { |
3938 | 527 if (fs.access_flags().is_static()) { |
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528 int real_offset = fs.offset() + InstanceMirrorKlass::offset_of_static_fields(); |
3938 | 529 fs.set_offset(real_offset); |
530 } | |
531 } | |
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532 } |
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533 } |
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534 create_mirror(k, CHECK); |
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535 } |
0 | 536 |
537 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
538 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
539 // Use this moment of initialization to cache modifier_flags also, | |
540 // to support Class.getModifiers(). Instance classes recalculate | |
541 // the cached flags after the class file is parsed, but before the | |
542 // class is put into the system dictionary. | |
543 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
544 k->set_modifier_flags(computed_modifiers); | |
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545 // Class_klass has to be loaded because it is used to allocate |
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546 // the mirror. |
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547 if (SystemDictionary::Class_klass_loaded()) { |
0 | 548 // Allocate mirror (java.lang.Class instance) |
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549 Handle mirror = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
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550 |
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551 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(mirror->klass()); |
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552 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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553 |
0 | 554 // It might also have a component mirror. This mirror must already exist. |
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555 if (k->oop_is_array()) { |
0 | 556 Handle comp_mirror; |
557 if (k->oop_is_typeArray()) { | |
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558 BasicType type = TypeArrayKlass::cast(k())->element_type(); |
0 | 559 comp_mirror = Universe::java_mirror(type); |
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560 } else { |
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561 assert(k->oop_is_objArray(), "Must be"); |
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562 Klass* element_klass = ObjArrayKlass::cast(k())->element_klass(); |
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563 assert(element_klass != NULL, "Must have an element klass"); |
6983 | 564 comp_mirror = element_klass->java_mirror(); |
0 | 565 } |
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566 assert(comp_mirror.not_null(), "must have a mirror"); |
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567 |
0 | 568 // Two-way link between the array klass and its component mirror: |
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569 ArrayKlass::cast(k())->set_component_mirror(comp_mirror()); |
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570 set_array_klass(comp_mirror(), k()); |
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571 } else { |
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572 assert(k->oop_is_instance(), "Must be"); |
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573 // Initialize static fields |
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574 InstanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 575 } |
576 return mirror(); | |
577 } else { | |
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578 if (fixup_mirror_list() == NULL) { |
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579 GrowableArray<Klass*>* list = |
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580 new (ResourceObj::C_HEAP, mtClass) GrowableArray<Klass*>(40, true); |
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581 set_fixup_mirror_list(list); |
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582 } |
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583 fixup_mirror_list()->push(k()); |
0 | 584 return NULL; |
585 } | |
586 } | |
587 | |
588 | |
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589 |
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590 int java_lang_Class::oop_size(oop java_class) { |
3938 | 591 assert(_oop_size_offset != 0, "must be set"); |
592 return java_class->int_field(_oop_size_offset); | |
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593 } |
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594 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 595 assert(_oop_size_offset != 0, "must be set"); |
596 java_class->int_field_put(_oop_size_offset, size); | |
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597 } |
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598 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 599 assert(_static_oop_field_count_offset != 0, "must be set"); |
600 return java_class->int_field(_static_oop_field_count_offset); | |
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601 } |
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602 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 603 assert(_static_oop_field_count_offset != 0, "must be set"); |
604 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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605 } |
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606 |
0 | 607 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
608 // This should be improved by adding a field at the Java level or by | |
609 // introducing a new VM klass (see comment in ClassFileParser) | |
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610 oop java_class = InstanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(NULL, CHECK_0); |
0 | 611 if (type != T_VOID) { |
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612 Klass* aklass = Universe::typeArrayKlassObj(type); |
0 | 613 assert(aklass != NULL, "correct bootstrap"); |
614 set_array_klass(java_class, aklass); | |
615 } | |
4009 | 616 #ifdef ASSERT |
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617 InstanceMirrorKlass* mk = InstanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
4009 | 618 assert(java_lang_Class::static_oop_field_count(java_class) == 0, "should have been zeroed by allocation"); |
619 #endif | |
0 | 620 return java_class; |
621 } | |
622 | |
623 | |
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624 Klass* java_lang_Class::as_Klass(oop java_class) { |
0 | 625 //%note memory_2 |
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626 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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627 Klass* k = ((Klass*)java_class->metadata_field(_klass_offset)); |
0 | 628 assert(k == NULL || k->is_klass(), "type check"); |
629 return k; | |
630 } | |
631 | |
632 | |
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633 void java_lang_Class::set_klass(oop java_class, Klass* klass) { |
4009 | 634 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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635 java_class->metadata_field_put(_klass_offset, klass); |
4009 | 636 } |
637 | |
638 | |
665
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639 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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640 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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641 Symbol* name = NULL; |
665
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642 bool is_instance = false; |
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643 if (is_primitive(java_class)) { |
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644 name = vmSymbols::type_signature(primitive_type(java_class)); |
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645 } else { |
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646 Klass* k = as_Klass(java_class); |
6983 | 647 is_instance = k->oop_is_instance(); |
648 name = k->name(); | |
665
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649 } |
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650 if (name == NULL) { |
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651 st->print("<null>"); |
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652 return; |
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653 } |
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654 if (is_instance) st->print("L"); |
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655 st->write((char*) name->base(), (int) name->utf8_length()); |
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656 if (is_instance) st->print(";"); |
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657 } |
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658 |
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659 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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660 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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661 Symbol* name; |
665
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662 if (is_primitive(java_class)) { |
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663 name = vmSymbols::type_signature(primitive_type(java_class)); |
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664 // Because this can create a new symbol, the caller has to decrement |
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665 // the refcount, so make adjustment here and below for symbols returned |
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666 // that are not created or incremented due to a successful lookup. |
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667 name->increment_refcount(); |
665
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668 } else { |
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669 Klass* k = as_Klass(java_class); |
6983 | 670 if (!k->oop_is_instance()) { |
671 name = k->name(); | |
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672 name->increment_refcount(); |
665
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673 } else { |
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674 ResourceMark rm; |
6983 | 675 const char* sigstr = k->signature_name(); |
665
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676 int siglen = (int) strlen(sigstr); |
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677 if (!intern_if_not_found) { |
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678 name = SymbolTable::probe(sigstr, siglen); |
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679 } else { |
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680 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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681 } |
665
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682 } |
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683 } |
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684 return name; |
665
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685 } |
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686 |
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687 |
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688 Klass* java_lang_Class::array_klass(oop java_class) { |
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689 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
6983 | 690 assert(k == NULL || k->is_klass() && k->oop_is_array(), "should be array klass"); |
0 | 691 return k; |
692 } | |
693 | |
694 | |
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695 void java_lang_Class::set_array_klass(oop java_class, Klass* klass) { |
6983 | 696 assert(klass->is_klass() && klass->oop_is_array(), "should be array klass"); |
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697 java_class->metadata_field_put(_array_klass_offset, klass); |
0 | 698 } |
699 | |
700 | |
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701 Method* java_lang_Class::resolved_constructor(oop java_class) { |
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702 Metadata* constructor = java_class->metadata_field(_resolved_constructor_offset); |
0 | 703 assert(constructor == NULL || constructor->is_method(), "should be method"); |
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704 return ((Method*)constructor); |
0 | 705 } |
706 | |
707 | |
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708 void java_lang_Class::set_resolved_constructor(oop java_class, Method* constructor) { |
0 | 709 assert(constructor->is_method(), "should be method"); |
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710 java_class->metadata_field_put(_resolved_constructor_offset, constructor); |
0 | 711 } |
712 | |
713 | |
714 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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715 // should assert: |
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716 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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717 bool is_primitive = (java_class->metadata_field(_klass_offset) == NULL); |
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718 |
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719 #ifdef ASSERT |
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720 if (is_primitive) { |
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721 Klass* k = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
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722 assert(k == NULL || is_java_primitive(ArrayKlass::cast(k)->element_type()), |
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723 "Should be either the T_VOID primitive or a java primitive"); |
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724 } |
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725 #endif |
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726 |
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727 return is_primitive; |
0 | 728 } |
729 | |
730 | |
731 BasicType java_lang_Class::primitive_type(oop java_class) { | |
732 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
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733 Klass* ak = ((Klass*)java_class->metadata_field(_array_klass_offset)); |
0 | 734 BasicType type = T_VOID; |
735 if (ak != NULL) { | |
736 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
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737 type = ArrayKlass::cast(ak)->element_type(); |
0 | 738 } else { |
739 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
740 } | |
741 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
742 return type; | |
743 } | |
744 | |
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745 BasicType java_lang_Class::as_BasicType(oop java_class, Klass** reference_klass) { |
665
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746 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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747 if (is_primitive(java_class)) { |
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748 if (reference_klass != NULL) |
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749 (*reference_klass) = NULL; |
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750 return primitive_type(java_class); |
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751 } else { |
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752 if (reference_klass != NULL) |
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753 (*reference_klass) = as_Klass(java_class); |
665
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754 return T_OBJECT; |
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755 } |
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756 } |
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757 |
0 | 758 |
759 oop java_lang_Class::primitive_mirror(BasicType t) { | |
760 oop mirror = Universe::java_mirror(t); | |
1142 | 761 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 762 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
763 return mirror; | |
764 } | |
765 | |
766 bool java_lang_Class::offsets_computed = false; | |
767 int java_lang_Class::classRedefinedCount_offset = -1; | |
768 | |
769 void java_lang_Class::compute_offsets() { | |
770 assert(!offsets_computed, "offsets should be initialized only once"); | |
771 offsets_computed = true; | |
772 | |
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773 Klass* klass_oop = SystemDictionary::Class_klass(); |
0 | 774 // The classRedefinedCount field is only present starting in 1.5, |
775 // so don't go fatal. | |
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776 compute_optional_offset(classRedefinedCount_offset, |
3938 | 777 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
778 | |
779 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 780 } |
781 | |
782 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
783 if (!JDK_Version::is_gte_jdk15x_version() | |
784 || classRedefinedCount_offset == -1) { | |
785 // The classRedefinedCount field is only present starting in 1.5. | |
786 // If we don't have an offset for it then just return -1 as a marker. | |
787 return -1; | |
788 } | |
789 | |
790 return the_class_mirror->int_field(classRedefinedCount_offset); | |
791 } | |
792 | |
793 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
794 if (!JDK_Version::is_gte_jdk15x_version() | |
795 || classRedefinedCount_offset == -1) { | |
796 // The classRedefinedCount field is only present starting in 1.5. | |
797 // If we don't have an offset for it then nothing to set. | |
798 return; | |
799 } | |
800 | |
801 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
802 } | |
803 | |
804 | |
805 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
806 // platform thread structure, and a eetop offset which was used for thread | |
807 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
808 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
809 // instead of the privateInfo_offset. | |
810 // | |
811 // Note: The stackSize field is only present starting in 1.4. | |
812 | |
813 int java_lang_Thread::_name_offset = 0; | |
814 int java_lang_Thread::_group_offset = 0; | |
815 int java_lang_Thread::_contextClassLoader_offset = 0; | |
816 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
817 int java_lang_Thread::_priority_offset = 0; | |
818 int java_lang_Thread::_eetop_offset = 0; | |
819 int java_lang_Thread::_daemon_offset = 0; | |
820 int java_lang_Thread::_stillborn_offset = 0; | |
821 int java_lang_Thread::_stackSize_offset = 0; | |
822 int java_lang_Thread::_tid_offset = 0; | |
823 int java_lang_Thread::_thread_status_offset = 0; | |
824 int java_lang_Thread::_park_blocker_offset = 0; | |
825 int java_lang_Thread::_park_event_offset = 0 ; | |
826 | |
827 | |
828 void java_lang_Thread::compute_offsets() { | |
829 assert(_group_offset == 0, "offsets should be initialized only once"); | |
830 | |
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831 Klass* k = SystemDictionary::Thread_klass(); |
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832 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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833 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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834 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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835 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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836 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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837 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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838 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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839 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 840 // The stackSize field is only present starting in 1.4, so don't go fatal. |
132
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841 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 842 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
132
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843 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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844 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 845 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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846 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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847 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 848 vmSymbols::long_signature()); |
849 } | |
850 | |
851 | |
852 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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853 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 854 } |
855 | |
856 | |
857 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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858 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 859 } |
860 | |
861 | |
862 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
863 oop name = java_thread->obj_field(_name_offset); | |
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864 assert(name == NULL || (name->is_typeArray() && TypeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); |
0 | 865 return typeArrayOop(name); |
866 } | |
867 | |
868 | |
869 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
870 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
871 java_thread->obj_field_put(_name_offset, name); | |
872 } | |
873 | |
874 | |
875 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
876 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
877 } | |
878 | |
879 | |
880 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
881 java_thread->int_field_put(_priority_offset, priority); | |
882 } | |
883 | |
884 | |
885 oop java_lang_Thread::threadGroup(oop java_thread) { | |
886 return java_thread->obj_field(_group_offset); | |
887 } | |
888 | |
889 | |
890 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
891 return java_thread->bool_field(_stillborn_offset) != 0; | |
892 } | |
893 | |
894 | |
895 // We never have reason to turn the stillborn bit off | |
896 void java_lang_Thread::set_stillborn(oop java_thread) { | |
897 java_thread->bool_field_put(_stillborn_offset, true); | |
898 } | |
899 | |
900 | |
901 bool java_lang_Thread::is_alive(oop java_thread) { | |
902 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
903 return (thr != NULL); | |
904 } | |
905 | |
906 | |
907 bool java_lang_Thread::is_daemon(oop java_thread) { | |
908 return java_thread->bool_field(_daemon_offset) != 0; | |
909 } | |
910 | |
911 | |
912 void java_lang_Thread::set_daemon(oop java_thread) { | |
913 java_thread->bool_field_put(_daemon_offset, true); | |
914 } | |
915 | |
916 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
917 return java_thread->obj_field(_contextClassLoader_offset); | |
918 } | |
919 | |
920 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
921 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
922 } | |
923 | |
924 | |
925 jlong java_lang_Thread::stackSize(oop java_thread) { | |
926 // The stackSize field is only present starting in 1.4 | |
927 if (_stackSize_offset > 0) { | |
928 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
929 return java_thread->long_field(_stackSize_offset); | |
930 } else { | |
931 return 0; | |
932 } | |
933 } | |
934 | |
935 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
936 void java_lang_Thread::set_thread_status(oop java_thread, | |
937 java_lang_Thread::ThreadStatus status) { | |
938 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
939 // The threadStatus is only present starting in 1.5 | |
940 if (_thread_status_offset > 0) { | |
941 java_thread->int_field_put(_thread_status_offset, status); | |
942 } | |
943 } | |
944 | |
945 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
946 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
947 assert(Thread::current()->is_VM_thread() || | |
948 JavaThread::current()->thread_state() == _thread_in_vm, | |
949 "Java Thread is not running in vm"); | |
950 // The threadStatus is only present starting in 1.5 | |
951 if (_thread_status_offset > 0) { | |
952 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
953 } else { | |
954 // All we can easily figure out is if it is alive, but that is | |
955 // enough info for a valid unknown status. | |
956 // These aren't restricted to valid set ThreadStatus values, so | |
957 // use JVMTI values and cast. | |
958 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
959 if (thr == NULL) { | |
960 // the thread hasn't run yet or is in the process of exiting | |
961 return NEW; | |
962 } | |
963 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
964 } | |
965 } | |
966 | |
967 | |
968 jlong java_lang_Thread::thread_id(oop java_thread) { | |
969 // The thread ID field is only present starting in 1.5 | |
970 if (_tid_offset > 0) { | |
971 return java_thread->long_field(_tid_offset); | |
972 } else { | |
973 return 0; | |
974 } | |
975 } | |
976 | |
977 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 978 assert(JDK_Version::current().supports_thread_park_blocker() && |
979 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 980 |
981 if (_park_blocker_offset > 0) { | |
982 return java_thread->obj_field(_park_blocker_offset); | |
983 } | |
984 | |
985 return NULL; | |
986 } | |
987 | |
988 jlong java_lang_Thread::park_event(oop java_thread) { | |
989 if (_park_event_offset > 0) { | |
990 return java_thread->long_field(_park_event_offset); | |
991 } | |
992 return 0; | |
993 } | |
994 | |
995 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
996 if (_park_event_offset > 0) { | |
997 java_thread->long_field_put(_park_event_offset, ptr); | |
998 return true; | |
999 } | |
1000 return false; | |
1001 } | |
1002 | |
1003 | |
1004 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
1005 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
1006 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
1007 switch (status) { | |
1008 case NEW : return "NEW"; | |
1009 case RUNNABLE : return "RUNNABLE"; | |
1010 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
1011 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
1012 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
1013 case PARKED : return "WAITING (parking)"; | |
1014 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
1015 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
1016 case TERMINATED : return "TERMINATED"; | |
1017 default : return "UNKNOWN"; | |
1018 }; | |
1019 } | |
1020 int java_lang_ThreadGroup::_parent_offset = 0; | |
1021 int java_lang_ThreadGroup::_name_offset = 0; | |
1022 int java_lang_ThreadGroup::_threads_offset = 0; | |
1023 int java_lang_ThreadGroup::_groups_offset = 0; | |
1024 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
1025 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
1026 int java_lang_ThreadGroup::_daemon_offset = 0; | |
1027 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
1028 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
1029 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
1030 | |
1031 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
1032 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1033 return java_thread_group->obj_field(_parent_offset); | |
1034 } | |
1035 | |
1036 // ("name as oop" accessor is not necessary) | |
1037 | |
1038 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
1039 oop name = java_thread_group->obj_field(_name_offset); | |
1040 // ThreadGroup.name can be null | |
1041 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
1042 } | |
1043 | |
1044 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
1045 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1046 return java_thread_group->int_field(_nthreads_offset); | |
1047 } | |
1048 | |
1049 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
1050 oop threads = java_thread_group->obj_field(_threads_offset); | |
1051 assert(threads != NULL, "threadgroups should have threads"); | |
1052 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1053 return objArrayOop(threads); | |
1054 } | |
1055 | |
1056 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
1057 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1058 return java_thread_group->int_field(_ngroups_offset); | |
1059 } | |
1060 | |
1061 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1062 oop groups = java_thread_group->obj_field(_groups_offset); | |
1063 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1064 return objArrayOop(groups); | |
1065 } | |
1066 | |
1067 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1068 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1069 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1070 } | |
1071 | |
1072 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1073 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1074 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1075 } | |
1076 | |
1077 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1078 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1079 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1080 } | |
1081 | |
1082 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1083 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1084 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1085 } | |
1086 | |
1087 void java_lang_ThreadGroup::compute_offsets() { | |
1088 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1089 | |
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1090 Klass* k = SystemDictionary::ThreadGroup_klass(); |
0 | 1091 |
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1092 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1093 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1094 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1095 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1096 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1097 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1098 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1099 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1100 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1101 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1102 } |
1103 | |
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1104 oop java_lang_Throwable::unassigned_stacktrace() { |
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1105 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1106 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1107 if (UseCompressedOops) { |
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1108 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1109 } else { |
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1110 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1111 } |
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1112 } |
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1113 |
0 | 1114 oop java_lang_Throwable::backtrace(oop throwable) { |
1115 return throwable->obj_field_acquire(backtrace_offset); | |
1116 } | |
1117 | |
1118 | |
1119 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1120 throwable->release_obj_field_put(backtrace_offset, value); | |
1121 } | |
1122 | |
1123 | |
1124 oop java_lang_Throwable::message(oop throwable) { | |
1125 return throwable->obj_field(detailMessage_offset); | |
1126 } | |
1127 | |
1128 | |
1129 oop java_lang_Throwable::message(Handle throwable) { | |
1130 return throwable->obj_field(detailMessage_offset); | |
1131 } | |
1132 | |
1133 | |
1134 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1135 throwable->obj_field_put(detailMessage_offset, value); | |
1136 } | |
1137 | |
1138 | |
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1139 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1140 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1141 } |
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1142 |
0 | 1143 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1144 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1145 set_stacktrace(throwable, NULL); |
0 | 1146 } |
1147 | |
1148 | |
1149 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1150 ResourceMark rm; | |
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1151 Klass* k = throwable->klass(); |
0 | 1152 assert(k != NULL, "just checking"); |
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1153 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1154 oop msg = message(throwable); |
1155 if (msg != NULL) { | |
1156 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1157 } | |
1158 } | |
1159 | |
1160 | |
1161 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1162 ResourceMark rm; | |
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1163 Klass* k = throwable->klass(); |
0 | 1164 assert(k != NULL, "just checking"); |
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1165 st->print("%s", InstanceKlass::cast(k)->external_name()); |
0 | 1166 oop msg = message(throwable); |
1167 if (msg != NULL) { | |
1168 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1169 } | |
1170 } | |
1171 | |
1172 // Print stack trace element to resource allocated buffer | |
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1173 char* java_lang_Throwable::print_stack_element_to_buffer(Method* method, int bci) { |
0 | 1174 // Get strings and string lengths |
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1175 InstanceKlass* klass = method->method_holder(); |
0 | 1176 const char* klass_name = klass->external_name(); |
1177 int buf_len = (int)strlen(klass_name); | |
1178 char* source_file_name; | |
1179 if (klass->source_file_name() == NULL) { | |
1180 source_file_name = NULL; | |
1181 } else { | |
1182 source_file_name = klass->source_file_name()->as_C_string(); | |
1183 buf_len += (int)strlen(source_file_name); | |
1184 } | |
1185 char* method_name = method->name()->as_C_string(); | |
1186 buf_len += (int)strlen(method_name); | |
1187 | |
1188 // Allocate temporary buffer with extra space for formatting and line number | |
1189 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1190 | |
1191 // Print stack trace line in buffer | |
1192 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1193 if (method->is_native()) { | |
1194 strcat(buf, "(Native Method)"); | |
1195 } else { | |
1196 int line_number = method->line_number_from_bci(bci); | |
1197 if (source_file_name != NULL && (line_number != -1)) { | |
1198 // Sourcename and linenumber | |
1199 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1200 } else if (source_file_name != NULL) { | |
1201 // Just sourcename | |
1202 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1203 } else { | |
1204 // Neither soucename and linenumber | |
1205 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1206 } | |
1207 nmethod* nm = method->code(); | |
1208 if (WizardMode && nm != NULL) { | |
3960 | 1209 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
0 | 1210 } |
1211 } | |
1212 | |
1213 return buf; | |
1214 } | |
1215 | |
1216 | |
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1217 void java_lang_Throwable::print_stack_element(Handle stream, Method* method, int bci) { |
0 | 1218 ResourceMark rm; |
1219 char* buf = print_stack_element_to_buffer(method, bci); | |
1220 print_to_stream(stream, buf); | |
1221 } | |
1222 | |
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1223 void java_lang_Throwable::print_stack_element(outputStream *st, Method* method, int bci) { |
0 | 1224 ResourceMark rm; |
1225 char* buf = print_stack_element_to_buffer(method, bci); | |
1226 st->print_cr("%s", buf); | |
1227 } | |
1228 | |
1229 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1230 if (stream.is_null()) { | |
1231 tty->print_cr("%s", str); | |
1232 } else { | |
1233 EXCEPTION_MARK; | |
1234 JavaValue result(T_VOID); | |
1235 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1236 if (!HAS_PENDING_EXCEPTION) { | |
1237 JavaCalls::call_virtual(&result, | |
1238 stream, | |
1239 KlassHandle(THREAD, stream->klass()), | |
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1240 vmSymbols::println_name(), |
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1241 vmSymbols::char_array_void_signature(), |
0 | 1242 arg, |
1243 THREAD); | |
1244 } | |
1245 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1246 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1247 } | |
1248 | |
1249 } | |
1250 | |
1251 | |
1252 const char* java_lang_Throwable::no_stack_trace_message() { | |
1253 return "\t<<no stack trace available>>"; | |
1254 } | |
1255 | |
1256 | |
1257 // Currently used only for exceptions occurring during startup | |
1258 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1259 Thread *THREAD = Thread::current(); | |
1260 Handle h_throwable(THREAD, throwable); | |
1261 while (h_throwable.not_null()) { | |
1262 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1263 if (result.is_null()) { | |
1264 st->print_cr(no_stack_trace_message()); | |
1265 return; | |
1266 } | |
1267 | |
1268 while (result.not_null()) { | |
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1269 typeArrayHandle methods (THREAD, |
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1270 typeArrayOop(result->obj_at(trace_methods_offset))); |
0 | 1271 typeArrayHandle bcis (THREAD, |
1272 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1273 | |
1274 if (methods.is_null() || bcis.is_null()) { | |
1275 st->print_cr(no_stack_trace_message()); | |
1276 return; | |
1277 } | |
1278 | |
1279 int length = methods()->length(); | |
1280 for (int index = 0; index < length; index++) { | |
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1281 Method* method = ((Method*)methods()->metadata_at(index)); |
0 | 1282 if (method == NULL) goto handle_cause; |
1283 int bci = bcis->ushort_at(index); | |
1284 print_stack_element(st, method, bci); | |
1285 } | |
1286 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1287 } | |
1288 handle_cause: | |
1289 { | |
1290 EXCEPTION_MARK; | |
1291 JavaValue result(T_OBJECT); | |
1292 JavaCalls::call_virtual(&result, | |
1293 h_throwable, | |
1294 KlassHandle(THREAD, h_throwable->klass()), | |
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1295 vmSymbols::getCause_name(), |
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1296 vmSymbols::void_throwable_signature(), |
0 | 1297 THREAD); |
1298 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1299 if (HAS_PENDING_EXCEPTION) { | |
1300 CLEAR_PENDING_EXCEPTION; | |
1301 h_throwable = Handle(); | |
1302 } else { | |
1303 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1304 if (h_throwable.not_null()) { | |
1305 st->print("Caused by: "); | |
1306 print(h_throwable, st); | |
1307 st->cr(); | |
1308 } | |
1309 } | |
1310 } | |
1311 } | |
1312 } | |
1313 | |
1314 | |
1315 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1316 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1317 Thread *thread = Thread::current(); | |
1318 Handle stream(thread, print_stream); | |
1319 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1320 if (result.is_null()) { | |
1321 print_to_stream(stream, no_stack_trace_message()); | |
1322 return; | |
1323 } | |
1324 | |
1325 while (result.not_null()) { | |
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1326 typeArrayHandle methods(thread, |
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1327 typeArrayOop(result->obj_at(trace_methods_offset))); |
0 | 1328 typeArrayHandle bcis (thread, |
1329 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1330 | |
1331 if (methods.is_null() || bcis.is_null()) { | |
1332 print_to_stream(stream, no_stack_trace_message()); | |
1333 return; | |
1334 } | |
1335 | |
1336 int length = methods()->length(); | |
1337 for (int index = 0; index < length; index++) { | |
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1338 Method* method = ((Method*)methods()->metadata_at(index)); |
0 | 1339 if (method == NULL) return; |
1340 int bci = bcis->ushort_at(index); | |
1341 print_stack_element(stream, method, bci); | |
1342 } | |
1343 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1344 } | |
1345 } | |
1346 | |
1347 // This class provides a simple wrapper over the internal structure of | |
1348 // exception backtrace to insulate users of the backtrace from needing | |
1349 // to know what it looks like. | |
1350 class BacktraceBuilder: public StackObj { | |
1351 private: | |
1352 Handle _backtrace; | |
1353 objArrayOop _head; | |
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1354 typeArrayOop _methods; |
0 | 1355 typeArrayOop _bcis; |
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1356 objArrayOop _mirrors; |
0 | 1357 int _index; |
1358 No_Safepoint_Verifier _nsv; | |
1359 | |
1360 public: | |
1361 | |
1362 enum { | |
1363 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1364 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
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1365 trace_mirrors_offset = java_lang_Throwable::trace_mirrors_offset, |
0 | 1366 trace_next_offset = java_lang_Throwable::trace_next_offset, |
1367 trace_size = java_lang_Throwable::trace_size, | |
1368 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1369 }; | |
1370 | |
1371 // constructor for new backtrace | |
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1372 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL), _mirrors(NULL) { |
0 | 1373 expand(CHECK); |
1374 _backtrace = _head; | |
1375 _index = 0; | |
1376 } | |
1377 | |
1378 void expand(TRAPS) { | |
1379 objArrayHandle old_head(THREAD, _head); | |
1380 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1381 | |
1382 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1383 objArrayHandle new_head(THREAD, head); | |
1384 | |
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1385 typeArrayOop methods = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
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1386 typeArrayHandle new_methods(THREAD, methods); |
0 | 1387 |
1388 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1389 typeArrayHandle new_bcis(THREAD, bcis); | |
1390 | |
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1391 objArrayOop mirrors = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1392 objArrayHandle new_mirrors(THREAD, mirrors); |
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1393 |
0 | 1394 if (!old_head.is_null()) { |
1395 old_head->obj_at_put(trace_next_offset, new_head()); | |
1396 } | |
1397 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1398 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
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1399 new_head->obj_at_put(trace_mirrors_offset, new_mirrors()); |
0 | 1400 |
1401 _head = new_head(); | |
1402 _methods = new_methods(); | |
1403 _bcis = new_bcis(); | |
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1404 _mirrors = new_mirrors(); |
0 | 1405 _index = 0; |
1406 } | |
1407 | |
1408 oop backtrace() { | |
1409 return _backtrace(); | |
1410 } | |
1411 | |
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1412 inline void push(Method* method, int bci, TRAPS) { |
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1413 // Smear the -1 bci to 0 since the array only holds unsigned |
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1414 // shorts. The later line number lookup would just smear the -1 |
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1415 // to a 0 even if it could be recorded. |
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1416 if (bci == SynchronizationEntryBCI) bci = 0; |
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1417 assert(bci == (jushort)bci, "doesn't fit"); |
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1418 |
0 | 1419 if (_index >= trace_chunk_size) { |
1420 methodHandle mhandle(THREAD, method); | |
1421 expand(CHECK); | |
1422 method = mhandle(); | |
1423 } | |
1424 | |
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1425 _methods->metadata_at_put(_index, method); |
0 | 1426 _bcis->ushort_at_put(_index, bci); |
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1427 // we need to save the mirrors in the backtrace to keep the methods from |
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1428 // being unloaded if their class loader is unloaded while we still have |
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1429 // this stack trace. |
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1430 _mirrors->obj_at_put(_index, method->method_holder()->java_mirror()); |
0 | 1431 _index++; |
1432 } | |
1433 | |
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1434 Method* current_method() { |
0 | 1435 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); |
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1436 return ((Method*)_methods->metadata_at(_index)); |
0 | 1437 } |
1438 | |
1439 jushort current_bci() { | |
1440 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1441 return _bcis->ushort_at(_index); | |
1442 } | |
1443 }; | |
1444 | |
1445 | |
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1446 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1447 if (!StackTraceInThrowable) return; |
1448 ResourceMark rm(THREAD); | |
1449 | |
1450 // Start out by clearing the backtrace for this object, in case the VM | |
1451 // runs out of memory while allocating the stack trace | |
1452 set_backtrace(throwable(), NULL); | |
1453 if (JDK_Version::is_gte_jdk14x_version()) { | |
1454 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1455 // refilling occurs | |
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1456 // This is unnecessary in 1.7+ but harmless |
0 | 1457 clear_stacktrace(throwable()); |
1458 } | |
1459 | |
1460 int max_depth = MaxJavaStackTraceDepth; | |
1461 JavaThread* thread = (JavaThread*)THREAD; | |
1462 BacktraceBuilder bt(CHECK); | |
1463 | |
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1464 // If there is no Java frame just return the method that was being called |
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1465 // with bci 0 |
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1466 if (!thread->has_last_Java_frame()) { |
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1467 if (max_depth >= 1 && method() != NULL) { |
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1468 bt.push(method(), 0, CHECK); |
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1469 set_backtrace(throwable(), bt.backtrace()); |
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1470 } |
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1471 return; |
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1472 } |
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1473 |
0 | 1474 // Instead of using vframe directly, this version of fill_in_stack_trace |
1475 // basically handles everything by hand. This significantly improved the | |
1476 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1477 // See bug 6333838 for more details. | |
1478 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1479 // trace as utilizing vframe. | |
1480 #ifdef ASSERT | |
1481 vframeStream st(thread); | |
1482 methodHandle st_method(THREAD, st.method()); | |
1483 #endif | |
1484 int total_count = 0; | |
1485 RegisterMap map(thread, false); | |
1486 int decode_offset = 0; | |
1487 nmethod* nm = NULL; | |
1488 bool skip_fillInStackTrace_check = false; | |
1489 bool skip_throwableInit_check = false; | |
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1490 bool skip_hidden = !ShowHiddenFrames; |
0 | 1491 |
1492 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
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1493 Method* method = NULL; |
0 | 1494 int bci = 0; |
1495 | |
1496 // Compiled java method case. | |
1497 if (decode_offset != 0) { | |
1498 DebugInfoReadStream stream(nm, decode_offset); | |
1499 decode_offset = stream.read_int(); | |
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1500 method = (Method*)nm->metadata_at(stream.read_int()); |
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1501 bci = stream.read_bci(); |
0 | 1502 } else { |
1503 if (fr.is_first_frame()) break; | |
1504 address pc = fr.pc(); | |
1505 if (fr.is_interpreted_frame()) { | |
1506 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1507 method = fr.interpreter_frame_method(); | |
1508 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1509 fr = fr.sender(&map); | |
1510 } else { | |
1511 CodeBlob* cb = fr.cb(); | |
1512 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1513 // but non nmethod | |
1514 fr = fr.sender(&map); | |
1515 if (cb == NULL || !cb->is_nmethod()) { | |
1516 continue; | |
1517 } | |
1518 nm = (nmethod*)cb; | |
1519 if (nm->method()->is_native()) { | |
1520 method = nm->method(); | |
1521 bci = 0; | |
1522 } else { | |
1523 PcDesc* pd = nm->pc_desc_at(pc); | |
1524 decode_offset = pd->scope_decode_offset(); | |
1525 // if decode_offset is not equal to 0, it will execute the | |
1526 // "compiled java method case" at the beginning of the loop. | |
1527 continue; | |
1528 } | |
1529 } | |
1530 } | |
1531 #ifdef ASSERT | |
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1532 assert(st_method() == method && st.bci() == bci, |
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1533 "Wrong stack trace"); |
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1534 st.next(); |
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1535 // vframeStream::method isn't GC-safe so store off a copy |
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1536 // of the Method* in case we GC. |
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1537 if (!st.at_end()) { |
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1538 st_method = st.method(); |
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1539 } |
0 | 1540 #endif |
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1541 |
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1542 // the format of the stacktrace will be: |
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1543 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1544 // - 0 or more <init> methods for the exception class (skipped) |
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1545 // - rest of the stack |
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1546 |
0 | 1547 if (!skip_fillInStackTrace_check) { |
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1548 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1549 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1550 throwable->is_a(method->method_holder())) { |
0 | 1551 continue; |
1552 } | |
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1553 else { |
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1554 skip_fillInStackTrace_check = true; // gone past them all |
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1555 } |
0 | 1556 } |
1557 if (!skip_throwableInit_check) { | |
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1558 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1559 |
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1560 // skip <init> methods of the exception class and superclasses |
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1561 // This is simlar to classic VM. |
0 | 1562 if (method->name() == vmSymbols::object_initializer_name() && |
1563 throwable->is_a(method->method_holder())) { | |
1564 continue; | |
1565 } else { | |
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1566 // there are none or we've seen them all - either way stop checking |
0 | 1567 skip_throwableInit_check = true; |
1568 } | |
1569 } | |
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1570 if (method->is_hidden()) { |
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1571 if (skip_hidden) continue; |
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1572 } |
0 | 1573 bt.push(method, bci, CHECK); |
1574 total_count++; | |
1575 } | |
1576 | |
1577 // Put completed stack trace into throwable object | |
1578 set_backtrace(throwable(), bt.backtrace()); | |
1579 } | |
1580 | |
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1581 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1582 // No-op if stack trace is disabled |
1583 if (!StackTraceInThrowable) { | |
1584 return; | |
1585 } | |
1586 | |
1587 // Disable stack traces for some preallocated out of memory errors | |
1588 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1589 return; | |
1590 } | |
1591 | |
1592 PRESERVE_EXCEPTION_MARK; | |
1593 | |
1594 JavaThread* thread = JavaThread::active(); | |
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1595 fill_in_stack_trace(throwable, method, thread); |
0 | 1596 // ignore exceptions thrown during stack trace filling |
1597 CLEAR_PENDING_EXCEPTION; | |
1598 } | |
1599 | |
1600 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1601 // Allocate stack trace - backtrace is created but not filled in | |
1602 | |
1603 // No-op if stack trace is disabled | |
1604 if (!StackTraceInThrowable) return; | |
1605 | |
1606 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1607 objArrayHandle backtrace (THREAD, h_oop); | |
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1608 typeArrayOop m_oop = oopFactory::new_metaDataArray(trace_chunk_size, CHECK); |
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1609 typeArrayHandle methods (THREAD, m_oop); |
0 | 1610 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); |
1611 typeArrayHandle bcis(THREAD, b); | |
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1612 objArrayOop mirror_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); |
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1613 objArrayHandle mirrors (THREAD, mirror_oop); |
0 | 1614 |
1615 // backtrace has space for one chunk (next is NULL) | |
1616 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1617 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
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1618 backtrace->obj_at_put(trace_mirrors_offset, mirrors()); |
0 | 1619 set_backtrace(throwable(), backtrace()); |
1620 } | |
1621 | |
1622 | |
1623 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1624 // Fill in stack trace into preallocated backtrace (no GC) | |
1625 | |
1626 // No-op if stack trace is disabled | |
1627 if (!StackTraceInThrowable) return; | |
1628 | |
1142 | 1629 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1630 |
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1631 objArrayOop backtrace = (objArrayOop)java_lang_Throwable::backtrace(throwable()); |
0 | 1632 assert(backtrace != NULL, "backtrace not preallocated"); |
1633 | |
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1634 oop m = backtrace->obj_at(trace_methods_offset); |
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1635 typeArrayOop methods = typeArrayOop(m); |
0 | 1636 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); |
1637 | |
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1638 oop b = backtrace->obj_at(trace_bcis_offset); |
0 | 1639 typeArrayOop bcis = typeArrayOop(b); |
1640 assert(bcis != NULL, "bci array not preallocated"); | |
1641 | |
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1642 oop mr = backtrace->obj_at(trace_mirrors_offset); |
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1643 objArrayOop mirrors = objArrayOop(mr); |
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1644 assert(mirrors != NULL, "bci array not preallocated"); |
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1645 |
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1646 assert(methods->length() == bcis->length() && |
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1647 methods->length() == mirrors->length(), |
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1648 "method and bci arrays should match"); |
0 | 1649 |
1650 JavaThread* thread = JavaThread::current(); | |
1651 ResourceMark rm(thread); | |
1652 vframeStream st(thread); | |
1653 | |
1654 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1655 // methods as preallocated errors aren't created by "java" code. | |
1656 | |
1657 // fill in as much stack trace as possible | |
1658 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1659 int chunk_count = 0; | |
1660 | |
1661 for (;!st.at_end(); st.next()) { | |
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1662 // Add entry and smear the -1 bci to 0 since the array only holds |
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1663 // unsigned shorts. The later line number lookup would just smear |
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1664 // the -1 to a 0 even if it could be recorded. |
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1665 int bci = st.bci(); |
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1666 if (bci == SynchronizationEntryBCI) bci = 0; |
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1667 assert(bci == (jushort)bci, "doesn't fit"); |
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1668 bcis->ushort_at_put(chunk_count, bci); |
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1669 methods->metadata_at_put(chunk_count, st.method()); |
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1670 mirrors->obj_at_put(chunk_count, |
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1671 st.method()->method_holder()->java_mirror()); |
0 | 1672 |
1673 chunk_count++; | |
1674 | |
1675 // Bail-out for deep stacks | |
1676 if (chunk_count >= max_chunks) break; | |
1677 } | |
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1678 |
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1679 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1680 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1681 // can be removed in a JDK using this JVM version |
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1682 if (JDK_Version::is_gte_jdk17x_version()) { |
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1683 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1684 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1685 } |
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1686 |
0 | 1687 } |
1688 | |
1689 | |
1690 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1691 if (throwable == NULL) { | |
1692 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1693 } | |
1694 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1695 int depth = 0; | |
1696 if (chunk != NULL) { | |
1697 // Iterate over chunks and count full ones | |
1698 while (true) { | |
1699 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1700 if (next == NULL) break; | |
1701 depth += trace_chunk_size; | |
1702 chunk = next; | |
1703 } | |
1704 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1705 // Count element in remaining partial chunk | |
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1706 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
0 | 1707 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
1708 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1709 for (int i = 0; i < methods->length(); i++) { | |
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1710 if (methods->metadata_at(i) == NULL) break; |
0 | 1711 depth++; |
1712 } | |
1713 } | |
1714 return depth; | |
1715 } | |
1716 | |
1717 | |
1718 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1719 if (throwable == NULL) { | |
1720 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1721 } | |
1722 if (index < 0) { | |
1723 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1724 } | |
1725 // Compute how many chunks to skip and index into actual chunk | |
1726 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1727 int skip_chunks = index / trace_chunk_size; | |
1728 int chunk_index = index % trace_chunk_size; | |
1729 while (chunk != NULL && skip_chunks > 0) { | |
1730 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1731 skip_chunks--; | |
1732 } | |
1733 if (chunk == NULL) { | |
1734 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1735 } | |
1736 // Get method,bci from chunk | |
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1737 typeArrayOop methods = typeArrayOop(chunk->obj_at(trace_methods_offset)); |
0 | 1738 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); |
1739 assert(methods != NULL && bcis != NULL, "sanity check"); | |
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1740 methodHandle method(THREAD, ((Method*)methods->metadata_at(chunk_index))); |
0 | 1741 int bci = bcis->ushort_at(chunk_index); |
1742 // Chunk can be partial full | |
1743 if (method.is_null()) { | |
1744 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1745 } | |
1746 | |
1747 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1748 return element; | |
1749 } | |
1750 | |
1751 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1752 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1753 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1754 | |
1755 // Allocate java.lang.StackTraceElement instance | |
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1756 Klass* k = SystemDictionary::StackTraceElement_klass(); |
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1757 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1758 instanceKlassHandle ik (THREAD, k); |
1759 if (ik->should_be_initialized()) { | |
1760 ik->initialize(CHECK_0); | |
1761 } | |
1762 | |
1763 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1764 // Fill in class name | |
1765 ResourceMark rm(THREAD); | |
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1766 const char* str = method->method_holder()->external_name(); |
0 | 1767 oop classname = StringTable::intern((char*) str, CHECK_0); |
1768 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1769 // Fill in method name | |
1770 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1771 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1772 // Fill in source file name | |
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1773 Symbol* source = method->method_holder()->source_file_name(); |
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1774 if (ShowHiddenFrames && source == NULL) |
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1775 source = vmSymbols::unknown_class_name(); |
0 | 1776 oop filename = StringTable::intern(source, CHECK_0); |
1777 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1778 // File in source line number | |
1779 int line_number; | |
1780 if (method->is_native()) { | |
1781 // Negative value different from -1 below, enabling Java code in | |
1782 // class java.lang.StackTraceElement to distinguish "native" from | |
1783 // "no LineNumberTable". | |
1784 line_number = -2; | |
1785 } else { | |
1786 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1787 line_number = method->line_number_from_bci(bci); | |
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1788 if (line_number == -1 && ShowHiddenFrames) { |
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1789 line_number = bci + 1000000; |
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1790 } |
0 | 1791 } |
1792 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1793 | |
1794 return element(); | |
1795 } | |
1796 | |
1797 | |
1798 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
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1799 Klass* k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1800 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1801 } |
1802 | |
1803 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1804 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1805 return (jboolean) reflect->bool_field(override_offset); | |
1806 } | |
1807 | |
1808 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1809 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1810 reflect->bool_field_put(override_offset, (int) value); | |
1811 } | |
1812 | |
1813 void java_lang_reflect_Method::compute_offsets() { | |
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1814 Klass* k = SystemDictionary::reflect_Method_klass(); |
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1815 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1816 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1817 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1818 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1819 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1820 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1821 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1822 // The generic signature and annotations fields are only present in 1.5 |
1823 signature_offset = -1; | |
1824 annotations_offset = -1; | |
1825 parameter_annotations_offset = -1; | |
1826 annotation_default_offset = -1; | |
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1827 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1828 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1829 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1830 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1831 } |
1832 | |
1833 Handle java_lang_reflect_Method::create(TRAPS) { | |
1834 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1835 Klass* klass = SystemDictionary::reflect_Method_klass(); |
0 | 1836 // This class is eagerly initialized during VM initialization, since we keep a refence |
1837 // to one of the methods | |
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1838 assert(InstanceKlass::cast(klass)->is_initialized(), "must be initialized"); |
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1839 return InstanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); |
0 | 1840 } |
1841 | |
1842 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1843 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1844 return reflect->obj_field(clazz_offset); | |
1845 } | |
1846 | |
1847 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1848 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1849 reflect->obj_field_put(clazz_offset, value); | |
1850 } | |
1851 | |
1852 int java_lang_reflect_Method::slot(oop reflect) { | |
1853 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1854 return reflect->int_field(slot_offset); | |
1855 } | |
1856 | |
1857 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1858 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1859 reflect->int_field_put(slot_offset, value); | |
1860 } | |
1861 | |
1862 oop java_lang_reflect_Method::name(oop method) { | |
1863 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1864 return method->obj_field(name_offset); | |
1865 } | |
1866 | |
1867 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1868 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1869 method->obj_field_put(name_offset, value); | |
1870 } | |
1871 | |
1872 oop java_lang_reflect_Method::return_type(oop method) { | |
1873 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1874 return method->obj_field(returnType_offset); | |
1875 } | |
1876 | |
1877 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1878 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1879 method->obj_field_put(returnType_offset, value); | |
1880 } | |
1881 | |
1882 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1883 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1884 return method->obj_field(parameterTypes_offset); | |
1885 } | |
1886 | |
1887 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1888 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1889 method->obj_field_put(parameterTypes_offset, value); | |
1890 } | |
1891 | |
1892 oop java_lang_reflect_Method::exception_types(oop method) { | |
1893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1894 return method->obj_field(exceptionTypes_offset); | |
1895 } | |
1896 | |
1897 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1898 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1899 method->obj_field_put(exceptionTypes_offset, value); | |
1900 } | |
1901 | |
1902 int java_lang_reflect_Method::modifiers(oop method) { | |
1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1904 return method->int_field(modifiers_offset); | |
1905 } | |
1906 | |
1907 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1908 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1909 method->int_field_put(modifiers_offset, value); | |
1910 } | |
1911 | |
1912 bool java_lang_reflect_Method::has_signature_field() { | |
1913 return (signature_offset >= 0); | |
1914 } | |
1915 | |
1916 oop java_lang_reflect_Method::signature(oop method) { | |
1917 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1918 assert(has_signature_field(), "signature field must be present"); | |
1919 return method->obj_field(signature_offset); | |
1920 } | |
1921 | |
1922 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1923 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1924 assert(has_signature_field(), "signature field must be present"); | |
1925 method->obj_field_put(signature_offset, value); | |
1926 } | |
1927 | |
1928 bool java_lang_reflect_Method::has_annotations_field() { | |
1929 return (annotations_offset >= 0); | |
1930 } | |
1931 | |
1932 oop java_lang_reflect_Method::annotations(oop method) { | |
1933 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1934 assert(has_annotations_field(), "annotations field must be present"); | |
1935 return method->obj_field(annotations_offset); | |
1936 } | |
1937 | |
1938 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1939 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1940 assert(has_annotations_field(), "annotations field must be present"); | |
1941 method->obj_field_put(annotations_offset, value); | |
1942 } | |
1943 | |
1944 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1945 return (parameter_annotations_offset >= 0); | |
1946 } | |
1947 | |
1948 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1949 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1950 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1951 return method->obj_field(parameter_annotations_offset); | |
1952 } | |
1953 | |
1954 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1956 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1957 method->obj_field_put(parameter_annotations_offset, value); | |
1958 } | |
1959 | |
1960 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1961 return (annotation_default_offset >= 0); | |
1962 } | |
1963 | |
1964 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1966 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1967 return method->obj_field(annotation_default_offset); | |
1968 } | |
1969 | |
1970 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1972 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1973 method->obj_field_put(annotation_default_offset, value); | |
1974 } | |
1975 | |
1976 void java_lang_reflect_Constructor::compute_offsets() { | |
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1977 Klass* k = SystemDictionary::reflect_Constructor_klass(); |
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1978 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1979 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1980 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1981 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1982 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1983 // The generic signature and annotations fields are only present in 1.5 |
1984 signature_offset = -1; | |
1985 annotations_offset = -1; | |
1986 parameter_annotations_offset = -1; | |
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1987 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1988 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1989 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1990 } |
1991 | |
1992 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1993 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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1994 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
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1995 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 1996 instanceKlassHandle klass (THREAD, k); |
1997 // Ensure it is initialized | |
1998 klass->initialize(CHECK_NH); | |
1999 return klass->allocate_instance_handle(CHECK_NH); | |
2000 } | |
2001 | |
2002 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
2003 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2004 return reflect->obj_field(clazz_offset); | |
2005 } | |
2006 | |
2007 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
2008 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2009 reflect->obj_field_put(clazz_offset, value); | |
2010 } | |
2011 | |
2012 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
2013 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2014 return constructor->obj_field(parameterTypes_offset); | |
2015 } | |
2016 | |
2017 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
2018 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2019 constructor->obj_field_put(parameterTypes_offset, value); | |
2020 } | |
2021 | |
2022 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
2023 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2024 return constructor->obj_field(exceptionTypes_offset); | |
2025 } | |
2026 | |
2027 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
2028 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2029 constructor->obj_field_put(exceptionTypes_offset, value); | |
2030 } | |
2031 | |
2032 int java_lang_reflect_Constructor::slot(oop reflect) { | |
2033 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2034 return reflect->int_field(slot_offset); | |
2035 } | |
2036 | |
2037 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
2038 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2039 reflect->int_field_put(slot_offset, value); | |
2040 } | |
2041 | |
2042 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
2043 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2044 return constructor->int_field(modifiers_offset); | |
2045 } | |
2046 | |
2047 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
2048 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2049 constructor->int_field_put(modifiers_offset, value); | |
2050 } | |
2051 | |
2052 bool java_lang_reflect_Constructor::has_signature_field() { | |
2053 return (signature_offset >= 0); | |
2054 } | |
2055 | |
2056 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
2057 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2058 assert(has_signature_field(), "signature field must be present"); | |
2059 return constructor->obj_field(signature_offset); | |
2060 } | |
2061 | |
2062 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
2063 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2064 assert(has_signature_field(), "signature field must be present"); | |
2065 constructor->obj_field_put(signature_offset, value); | |
2066 } | |
2067 | |
2068 bool java_lang_reflect_Constructor::has_annotations_field() { | |
2069 return (annotations_offset >= 0); | |
2070 } | |
2071 | |
2072 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
2073 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2074 assert(has_annotations_field(), "annotations field must be present"); | |
2075 return constructor->obj_field(annotations_offset); | |
2076 } | |
2077 | |
2078 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
2079 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2080 assert(has_annotations_field(), "annotations field must be present"); | |
2081 constructor->obj_field_put(annotations_offset, value); | |
2082 } | |
2083 | |
2084 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
2085 return (parameter_annotations_offset >= 0); | |
2086 } | |
2087 | |
2088 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
2089 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2090 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2091 return method->obj_field(parameter_annotations_offset); | |
2092 } | |
2093 | |
2094 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
2095 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2096 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
2097 method->obj_field_put(parameter_annotations_offset, value); | |
2098 } | |
2099 | |
2100 void java_lang_reflect_Field::compute_offsets() { | |
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2101 Klass* k = SystemDictionary::reflect_Field_klass(); |
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2102 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2103 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2104 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2105 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2106 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2107 // The generic signature and annotations fields are only present in 1.5 |
2108 signature_offset = -1; | |
2109 annotations_offset = -1; | |
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2110 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2111 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2112 } |
2113 | |
2114 Handle java_lang_reflect_Field::create(TRAPS) { | |
2115 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2116 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
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2117 Klass* k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
0 | 2118 instanceKlassHandle klass (THREAD, k); |
2119 // Ensure it is initialized | |
2120 klass->initialize(CHECK_NH); | |
2121 return klass->allocate_instance_handle(CHECK_NH); | |
2122 } | |
2123 | |
2124 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2125 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2126 return reflect->obj_field(clazz_offset); | |
2127 } | |
2128 | |
2129 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2130 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2131 reflect->obj_field_put(clazz_offset, value); | |
2132 } | |
2133 | |
2134 oop java_lang_reflect_Field::name(oop field) { | |
2135 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2136 return field->obj_field(name_offset); | |
2137 } | |
2138 | |
2139 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2140 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2141 field->obj_field_put(name_offset, value); | |
2142 } | |
2143 | |
2144 oop java_lang_reflect_Field::type(oop field) { | |
2145 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2146 return field->obj_field(type_offset); | |
2147 } | |
2148 | |
2149 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2150 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2151 field->obj_field_put(type_offset, value); | |
2152 } | |
2153 | |
2154 int java_lang_reflect_Field::slot(oop reflect) { | |
2155 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2156 return reflect->int_field(slot_offset); | |
2157 } | |
2158 | |
2159 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2160 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2161 reflect->int_field_put(slot_offset, value); | |
2162 } | |
2163 | |
2164 int java_lang_reflect_Field::modifiers(oop field) { | |
2165 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2166 return field->int_field(modifiers_offset); | |
2167 } | |
2168 | |
2169 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2170 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2171 field->int_field_put(modifiers_offset, value); | |
2172 } | |
2173 | |
2174 bool java_lang_reflect_Field::has_signature_field() { | |
2175 return (signature_offset >= 0); | |
2176 } | |
2177 | |
2178 oop java_lang_reflect_Field::signature(oop field) { | |
2179 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2180 assert(has_signature_field(), "signature field must be present"); | |
2181 return field->obj_field(signature_offset); | |
2182 } | |
2183 | |
2184 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2185 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2186 assert(has_signature_field(), "signature field must be present"); | |
2187 field->obj_field_put(signature_offset, value); | |
2188 } | |
2189 | |
2190 bool java_lang_reflect_Field::has_annotations_field() { | |
2191 return (annotations_offset >= 0); | |
2192 } | |
2193 | |
2194 oop java_lang_reflect_Field::annotations(oop field) { | |
2195 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2196 assert(has_annotations_field(), "annotations field must be present"); | |
2197 return field->obj_field(annotations_offset); | |
2198 } | |
2199 | |
2200 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2201 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2202 assert(has_annotations_field(), "annotations field must be present"); | |
2203 field->obj_field_put(annotations_offset, value); | |
2204 } | |
2205 | |
2206 | |
2207 void sun_reflect_ConstantPool::compute_offsets() { | |
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2208 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2209 // This null test can be removed post beta |
2210 if (k != NULL) { | |
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2211 // The field is called ConstantPool* in the sun.reflect.ConstantPool class. |
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2212 compute_offset(_oop_offset, k, vmSymbols::ConstantPool_name(), vmSymbols::object_signature()); |
0 | 2213 } |
2214 } | |
2215 | |
2216 | |
2217 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2218 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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2219 Klass* k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2220 instanceKlassHandle klass (THREAD, k); |
2221 // Ensure it is initialized | |
2222 klass->initialize(CHECK_NH); | |
2223 return klass->allocate_instance_handle(CHECK_NH); | |
2224 } | |
2225 | |
2226 | |
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2227 void sun_reflect_ConstantPool::set_cp(oop reflect, ConstantPool* value) { |
0 | 2228 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2229 oop mirror = value->pool_holder()->java_mirror(); |
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2230 // Save the mirror to get back the constant pool. |
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2231 reflect->obj_field_put(_oop_offset, mirror); |
0 | 2232 } |
2233 | |
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2234 ConstantPool* sun_reflect_ConstantPool::get_cp(oop reflect) { |
0 | 2235 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); |
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2236 |
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2237 oop mirror = reflect->obj_field(_oop_offset); |
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2238 Klass* k = java_lang_Class::as_Klass(mirror); |
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2239 assert(k->oop_is_instance(), "Must be"); |
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2240 |
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2241 // Get the constant pool back from the klass. Since class redefinition |
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2242 // merges the new constant pool into the old, this is essentially the |
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2243 // same constant pool as the original. If constant pool merging is |
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2244 // no longer done in the future, this will have to change to save |
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2245 // the original. |
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2246 return InstanceKlass::cast(k)->constants(); |
0 | 2247 } |
2248 | |
2249 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
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2250 Klass* k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2251 // This null test can be removed post beta |
2252 if (k != NULL) { | |
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2253 compute_offset(_base_offset, k, |
0 | 2254 vmSymbols::base_name(), vmSymbols::object_signature()); |
2255 } | |
2256 } | |
2257 | |
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2258 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2259 Klass* k = SystemDictionary::box_klass(type); |
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2260 if (k == NULL) return NULL; |
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2261 instanceKlassHandle h (THREAD, k); |
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2262 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2263 return h->allocate_instance(THREAD); |
0 | 2264 } |
2265 | |
2266 | |
2267 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
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2268 oop box = initialize_and_allocate(type, CHECK_0); |
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2269 if (box == NULL) return NULL; |
0 | 2270 switch (type) { |
2271 case T_BOOLEAN: | |
2272 box->bool_field_put(value_offset, value->z); | |
2273 break; | |
2274 case T_CHAR: | |
2275 box->char_field_put(value_offset, value->c); | |
2276 break; | |
2277 case T_FLOAT: | |
2278 box->float_field_put(value_offset, value->f); | |
2279 break; | |
2280 case T_DOUBLE: | |
165
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2281 box->double_field_put(long_value_offset, value->d); |
0 | 2282 break; |
2283 case T_BYTE: | |
2284 box->byte_field_put(value_offset, value->b); | |
2285 break; | |
2286 case T_SHORT: | |
2287 box->short_field_put(value_offset, value->s); | |
2288 break; | |
2289 case T_INT: | |
2290 box->int_field_put(value_offset, value->i); | |
2291 break; | |
2292 case T_LONG: | |
165
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2293 box->long_field_put(long_value_offset, value->j); |
0 | 2294 break; |
2295 default: | |
2296 return NULL; | |
2297 } | |
2298 return box; | |
2299 } | |
2300 | |
2301 | |
132
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2302 BasicType java_lang_boxing_object::basic_type(oop box) { |
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|
2303 if (box == NULL) return T_ILLEGAL; |
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|
2304 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2305 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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|
2306 return T_ILLEGAL; |
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|
2307 return type; |
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diff
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|
2308 } |
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|
2309 |
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2310 |
0 | 2311 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2312 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2313 switch (type) { |
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|
2314 case T_BOOLEAN: |
0 | 2315 value->z = box->bool_field(value_offset); |
132
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2316 break; |
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|
2317 case T_CHAR: |
0 | 2318 value->c = box->char_field(value_offset); |
132
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|
2319 break; |
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|
2320 case T_FLOAT: |
0 | 2321 value->f = box->float_field(value_offset); |
132
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|
2322 break; |
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|
2323 case T_DOUBLE: |
165
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2324 value->d = box->double_field(long_value_offset); |
132
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2325 break; |
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|
2326 case T_BYTE: |
0 | 2327 value->b = box->byte_field(value_offset); |
132
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|
2328 break; |
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|
2329 case T_SHORT: |
0 | 2330 value->s = box->short_field(value_offset); |
132
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|
2331 break; |
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|
2332 case T_INT: |
0 | 2333 value->i = box->int_field(value_offset); |
132
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|
2334 break; |
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|
2335 case T_LONG: |
165
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2336 value->j = box->long_field(long_value_offset); |
132
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|
2337 break; |
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diff
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|
2338 default: |
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|
2339 return T_ILLEGAL; |
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|
2340 } // end switch |
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|
2341 return type; |
0 | 2342 } |
2343 | |
2344 | |
2345 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2346 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2347 switch (type) { |
60b728ec77c1
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|
2348 case T_BOOLEAN: |
0 | 2349 box->bool_field_put(value_offset, value->z); |
132
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2350 break; |
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|
2351 case T_CHAR: |
0 | 2352 box->char_field_put(value_offset, value->c); |
132
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|
2353 break; |
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|
2354 case T_FLOAT: |
0 | 2355 box->float_field_put(value_offset, value->f); |
132
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|
2356 break; |
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|
2357 case T_DOUBLE: |
165
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|
2358 box->double_field_put(long_value_offset, value->d); |
132
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|
2359 break; |
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|
2360 case T_BYTE: |
0 | 2361 box->byte_field_put(value_offset, value->b); |
132
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|
2362 break; |
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|
2363 case T_SHORT: |
0 | 2364 box->short_field_put(value_offset, value->s); |
132
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|
2365 break; |
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|
2366 case T_INT: |
0 | 2367 box->int_field_put(value_offset, value->i); |
132
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|
2368 break; |
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|
2369 case T_LONG: |
165
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|
2370 box->long_field_put(long_value_offset, value->j); |
132
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|
2371 break; |
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|
2372 default: |
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|
2373 return T_ILLEGAL; |
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|
2374 } // end switch |
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|
2375 return type; |
0 | 2376 } |
2377 | |
2378 | |
665
c89f86385056
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579
diff
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|
2379 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
c89f86385056
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jrose
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579
diff
changeset
|
2380 switch (type) { |
c89f86385056
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jrose
parents:
579
diff
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|
2381 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
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diff
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|
2382 case T_CHAR: st->print("%d", value->c); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
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|
2383 case T_BYTE: st->print("%d", value->b); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2384 case T_SHORT: st->print("%d", value->s); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2385 case T_INT: st->print("%d", value->i); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2386 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2387 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2388 case T_DOUBLE: st->print("%lf", value->d); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2389 default: st->print("type %d?", type); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
2390 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
changeset
|
2391 } |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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diff
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|
2392 |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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diff
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|
2393 |
0 | 2394 // Support for java_lang_ref_Reference |
6725
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|
2395 HeapWord *java_lang_ref_Reference::pending_list_lock_addr() { |
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|
2396 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
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|
2397 address addr = ik->static_field_addr(static_lock_offset); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
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|
2398 return (HeapWord*) addr; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2399 } |
da91efe96a93
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|
2400 |
113
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diff
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|
2401 oop java_lang_ref_Reference::pending_list_lock() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
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|
2402 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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diff
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|
2403 address addr = ik->static_field_addr(static_lock_offset); |
113
ba764ed4b6f2
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|
2404 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2405 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
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|
2406 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2407 return oopDesc::load_decode_heap_oop((oop*)addr); |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
2408 } |
0 | 2409 } |
2410 | |
113
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|
2411 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
6725
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|
2412 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
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|
2413 address addr = ik->static_field_addr(static_pending_offset); |
113
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coleenp
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diff
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|
2414 // XXX This might not be HeapWord aligned, almost rather be char *. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
2415 return (HeapWord*)addr; |
0 | 2416 } |
2417 | |
113
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|
2418 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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98
diff
changeset
|
2419 char *addr = (char *)pending_list_addr(); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
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|
2420 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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98
diff
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|
2421 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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diff
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|
2422 } else { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
changeset
|
2423 return oopDesc::load_decode_heap_oop((oop*)addr); |
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|
2424 } |
0 | 2425 } |
2426 | |
2427 | |
2428 // Support for java_lang_ref_SoftReference | |
2429 | |
2430 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2431 return ref->long_field(timestamp_offset); | |
2432 } | |
2433 | |
2434 jlong java_lang_ref_SoftReference::clock() { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2435 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2436 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2437 return *offset; |
0 | 2438 } |
2439 | |
2440 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2441 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2442 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2443 *offset = value; |
0 | 2444 } |
2445 | |
2446 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2447 // Support for java_lang_invoke_MethodHandle |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2448 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2449 int java_lang_invoke_MethodHandle::_type_offset; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2450 int java_lang_invoke_MethodHandle::_form_offset; |
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|
2451 |
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|
2452 int java_lang_invoke_MemberName::_clazz_offset; |
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2453 int java_lang_invoke_MemberName::_name_offset; |
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2454 int java_lang_invoke_MemberName::_type_offset; |
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|
2455 int java_lang_invoke_MemberName::_flags_offset; |
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|
2456 int java_lang_invoke_MemberName::_vmtarget_offset; |
6725
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2457 int java_lang_invoke_MemberName::_vmloader_offset; |
2357
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diff
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|
2458 int java_lang_invoke_MemberName::_vmindex_offset; |
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|
2459 |
6266
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|
2460 int java_lang_invoke_LambdaForm::_vmentry_offset; |
3905
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|
2461 |
2357
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|
2462 void java_lang_invoke_MethodHandle::compute_offsets() { |
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|
2463 Klass* klass_oop = SystemDictionary::MethodHandle_klass(); |
3938 | 2464 if (klass_oop != NULL && EnableInvokeDynamic) { |
6266
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2465 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature()); |
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|
2466 compute_optional_offset(_form_offset, klass_oop, vmSymbols::form_name(), vmSymbols::java_lang_invoke_LambdaForm_signature()); |
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|
2467 if (_form_offset == 0) { |
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|
2468 EnableInvokeDynamic = false; |
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|
2469 } |
710 | 2470 } |
2471 } | |
2472 | |
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|
2473 void java_lang_invoke_MemberName::compute_offsets() { |
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2474 Klass* klass_oop = SystemDictionary::MemberName_klass(); |
3938 | 2475 if (klass_oop != NULL && EnableInvokeDynamic) { |
2476 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2477 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2478 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2479 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2480 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2481 } |
2482 } | |
2483 | |
6266
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|
2484 void java_lang_invoke_LambdaForm::compute_offsets() { |
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2485 Klass* klass_oop = SystemDictionary::LambdaForm_klass(); |
6266
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2486 if (klass_oop != NULL && EnableInvokeDynamic) { |
1d7922586cf6
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|
2487 compute_offset(_vmentry_offset, klass_oop, vmSymbols::vmentry_name(), vmSymbols::java_lang_invoke_MemberName_signature()); |
710 | 2488 } |
2489 } | |
2490 | |
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diff
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|
2491 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2492 return mh->obj_field(_type_offset); |
2493 } | |
2494 | |
2357
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diff
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|
2495 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2496 mh->obj_field_put(_type_offset, mtype); |
2497 } | |
2498 | |
6266
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|
2499 oop java_lang_invoke_MethodHandle::form(oop mh) { |
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|
2500 assert(_form_offset != 0, ""); |
1d7922586cf6
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diff
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|
2501 return mh->obj_field(_form_offset); |
710 | 2502 } |
2503 | |
6266
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|
2504 void java_lang_invoke_MethodHandle::set_form(oop mh, oop lform) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2505 assert(_form_offset != 0, ""); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
2506 mh->obj_field_put(_form_offset, lform); |
710 | 2507 } |
2508 | |
2509 /// MemberName accessors | |
2510 | |
2357
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diff
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|
2511 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2512 assert(is_instance(mname), "wrong type"); |
2513 return mname->obj_field(_clazz_offset); | |
2514 } | |
2515 | |
2357
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diff
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|
2516 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2517 assert(is_instance(mname), "wrong type"); |
2518 mname->obj_field_put(_clazz_offset, clazz); | |
2519 } | |
2520 | |
2357
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diff
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|
2521 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2522 assert(is_instance(mname), "wrong type"); |
2523 return mname->obj_field(_name_offset); | |
2524 } | |
2525 | |
2357
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diff
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|
2526 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2527 assert(is_instance(mname), "wrong type"); |
2528 mname->obj_field_put(_name_offset, name); | |
2529 } | |
2530 | |
2357
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diff
changeset
|
2531 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2532 assert(is_instance(mname), "wrong type"); |
2533 return mname->obj_field(_type_offset); | |
2534 } | |
2535 | |
2357
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diff
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|
2536 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2537 assert(is_instance(mname), "wrong type"); |
2538 mname->obj_field_put(_type_offset, type); | |
2539 } | |
2540 | |
2357
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diff
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|
2541 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2542 assert(is_instance(mname), "wrong type"); |
2543 return mname->int_field(_flags_offset); | |
2544 } | |
2545 | |
2357
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diff
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|
2546 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2547 assert(is_instance(mname), "wrong type"); |
2548 mname->int_field_put(_flags_offset, flags); | |
2549 } | |
2550 | |
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da91efe96a93
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|
2551 Metadata* java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2552 assert(is_instance(mname), "wrong type"); |
6725
da91efe96a93
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6267
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|
2553 return (Metadata*)mname->address_field(_vmtarget_offset); |
710 | 2554 } |
2555 | |
6725
da91efe96a93
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|
2556 void java_lang_invoke_MemberName::set_vmtarget(oop mname, Metadata* ref) { |
710 | 2557 assert(is_instance(mname), "wrong type"); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
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|
2558 #ifdef ASSERT |
1d7922586cf6
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6224
diff
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|
2559 // check the type of the vmtarget |
1d7922586cf6
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diff
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|
2560 if (ref != NULL) { |
1d7922586cf6
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diff
changeset
|
2561 switch (flags(mname) & (MN_IS_METHOD | |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2562 MN_IS_CONSTRUCTOR | |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2563 MN_IS_FIELD)) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2564 case MN_IS_METHOD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
changeset
|
2565 case MN_IS_CONSTRUCTOR: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2566 assert(ref->is_method(), "should be a method"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
changeset
|
2567 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2568 case MN_IS_FIELD: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2569 assert(ref->is_klass(), "should be a class"); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2570 break; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2571 default: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2572 ShouldNotReachHere(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6224
diff
changeset
|
2573 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2574 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2575 #endif //ASSERT |
6725
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6267
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changeset
|
2576 mname->address_field_put(_vmtarget_offset, (address)ref); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
2577 oop loader = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6267
diff
changeset
|
2578 if (ref != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
2579 if (ref->is_klass()) { |
da91efe96a93
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6267
diff
changeset
|
2580 loader = ((Klass*)ref)->class_loader(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
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|
2581 } else if (ref->is_method()) { |
da91efe96a93
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6267
diff
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|
2582 loader = ((Method*)ref)->method_holder()->class_loader(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
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|
2583 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
changeset
|
2584 ShouldNotReachHere(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6267
diff
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|
2585 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2586 } |
da91efe96a93
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6267
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changeset
|
2587 // Add a reference to the loader to ensure the metadata is kept alive |
da91efe96a93
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diff
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|
2588 mname->obj_field_put(_vmloader_offset, loader); |
710 | 2589 } |
2590 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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6224
diff
changeset
|
2591 intptr_t java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2592 assert(is_instance(mname), "wrong type"); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
6224
diff
changeset
|
2593 return (intptr_t) mname->address_field(_vmindex_offset); |
710 | 2594 } |
2595 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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6224
diff
changeset
|
2596 void java_lang_invoke_MemberName::set_vmindex(oop mname, intptr_t index) { |
1d7922586cf6
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6224
diff
changeset
|
2597 assert(is_instance(mname), "wrong type"); |
1d7922586cf6
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6224
diff
changeset
|
2598 mname->address_field_put(_vmindex_offset, (address) index); |
710 | 2599 } |
2600 | |
6266
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|
2601 oop java_lang_invoke_LambdaForm::vmentry(oop lform) { |
1d7922586cf6
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6224
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|
2602 assert(is_instance(lform), "wrong type"); |
1d7922586cf6
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6224
diff
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|
2603 return lform->obj_field(_vmentry_offset); |
710 | 2604 } |
2605 | |
2606 | |
2357
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|
2607 // Support for java_lang_invoke_MethodType |
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|
2608 |
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diff
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|
2609 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2610 int java_lang_invoke_MethodType::_ptypes_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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|
2611 |
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diff
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|
2612 void java_lang_invoke_MethodType::compute_offsets() { |
6725
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|
2613 Klass* k = SystemDictionary::MethodType_klass(); |
710 | 2614 if (k != NULL) { |
2615 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2616 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
2617 } | |
2618 } | |
2619 | |
2357
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|
2620 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2621 st->print("("); |
2622 objArrayOop pts = ptypes(mt); | |
2623 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2624 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2625 } | |
2626 st->print(")"); | |
2627 java_lang_Class::print_signature(rtype(mt), st); | |
2628 } | |
2629 | |
2357
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|
2630 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2631 ResourceMark rm; |
2632 stringStream buffer(128); | |
2633 print_signature(mt, &buffer); | |
2634 const char* sigstr = buffer.base(); | |
2635 int siglen = (int) buffer.size(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
changeset
|
2636 Symbol *name; |
3582bf76420e
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diff
changeset
|
2637 if (!intern_if_not_found) { |
3582bf76420e
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diff
changeset
|
2638 name = SymbolTable::probe(sigstr, siglen); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2639 } else { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2640 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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diff
changeset
|
2641 } |
3582bf76420e
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diff
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|
2642 return name; |
710 | 2643 } |
2644 | |
3785
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2645 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
6266
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2646 if (mt1 == mt2) |
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|
2647 return true; |
3785
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2648 if (rtype(mt1) != rtype(mt2)) |
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|
2649 return false; |
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2650 if (ptype_count(mt1) != ptype_count(mt2)) |
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|
2651 return false; |
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|
2652 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
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2653 if (ptype(mt1, i) != ptype(mt2, i)) |
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|
2654 return false; |
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|
2655 } |
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|
2656 return true; |
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|
2657 } |
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|
2658 |
2357
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|
2659 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2660 assert(is_instance(mt), "must be a MethodType"); |
2661 return mt->obj_field(_rtype_offset); | |
2662 } | |
2663 | |
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2664 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2665 assert(is_instance(mt), "must be a MethodType"); |
2666 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2667 } | |
2668 | |
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|
2669 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2670 return ptypes(mt)->obj_at(idx); |
2671 } | |
2672 | |
2357
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2673 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
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|
2674 return ptypes(mt)->length(); |
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|
2675 } |
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|
2676 |
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2677 int java_lang_invoke_MethodType::ptype_slot_count(oop mt) { |
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2678 objArrayOop pts = ptypes(mt); |
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2679 int count = pts->length(); |
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|
2680 int slots = 0; |
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|
2681 for (int i = 0; i < count; i++) { |
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2682 BasicType bt = java_lang_Class::as_BasicType(pts->obj_at(i)); |
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2683 slots += type2size[bt]; |
710 | 2684 } |
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2685 return slots; |
710 | 2686 } |
2687 | |
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2688 int java_lang_invoke_MethodType::rtype_slot_count(oop mt) { |
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2689 BasicType bt = java_lang_Class::as_BasicType(rtype(mt)); |
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2690 return type2size[bt]; |
1793
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diff
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|
2691 } |
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|
2692 |
710 | 2693 |
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2694 // Support for java_lang_invoke_CallSite |
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|
2695 |
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|
2696 int java_lang_invoke_CallSite::_target_offset; |
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|
2697 |
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|
2698 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
2699 if (!EnableInvokeDynamic) return; |
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|
2700 Klass* k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
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|
2701 if (k != NULL) { |
2357
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|
2702 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
726
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|
2703 } |
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|
2704 } |
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diff
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|
2705 |
710 | 2706 |
0 | 2707 // Support for java_security_AccessControlContext |
2708 | |
2709 int java_security_AccessControlContext::_context_offset = 0; | |
2710 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2711 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2712 | |
2713 void java_security_AccessControlContext::compute_offsets() { | |
2714 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2715 fieldDescriptor fd; | |
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2716 InstanceKlass* ik = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass()); |
0 | 2717 |
2718 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2719 fatal("Invalid layout of java.security.AccessControlContext"); | |
2720 } | |
2721 _context_offset = fd.offset(); | |
2722 | |
2723 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2724 fatal("Invalid layout of java.security.AccessControlContext"); | |
2725 } | |
2726 _privilegedContext_offset = fd.offset(); | |
2727 | |
2728 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2729 fatal("Invalid layout of java.security.AccessControlContext"); | |
2730 } | |
2731 _isPrivileged_offset = fd.offset(); | |
2732 } | |
2733 | |
2734 | |
2735 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2736 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2737 // Ensure klass is initialized | |
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|
2738 InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); |
0 | 2739 // Allocate result |
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2740 oop result = InstanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); |
0 | 2741 // Fill in values |
2742 result->obj_field_put(_context_offset, context()); | |
2743 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2744 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2745 return result; | |
2746 } | |
2747 | |
2748 | |
2749 // Support for java_lang_ClassLoader | |
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2750 |
3938 | 2751 bool java_lang_ClassLoader::offsets_computed = false; |
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2752 int java_lang_ClassLoader::_loader_data_offset = -1; |
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|
2753 int java_lang_ClassLoader::_dependencies_offset = -1; |
3938 | 2754 int java_lang_ClassLoader::parallelCapable_offset = -1; |
2755 | |
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|
2756 ClassLoaderData** java_lang_ClassLoader::loader_data_addr(oop loader) { |
da91efe96a93
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|
2757 assert(loader != NULL && loader->is_oop(), "loader must be oop"); |
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|
2758 return (ClassLoaderData**) loader->address_field_addr(_loader_data_offset); |
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|
2759 } |
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|
2760 |
da91efe96a93
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|
2761 ClassLoaderData* java_lang_ClassLoader::loader_data(oop loader) { |
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|
2762 return *java_lang_ClassLoader::loader_data_addr(loader); |
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|
2763 } |
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|
2764 |
da91efe96a93
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|
2765 oop java_lang_ClassLoader::dependencies(oop loader) { |
da91efe96a93
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|
2766 return loader->obj_field(_dependencies_offset); |
da91efe96a93
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diff
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|
2767 } |
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|
2768 |
da91efe96a93
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|
2769 HeapWord* java_lang_ClassLoader::dependencies_addr(oop loader) { |
da91efe96a93
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|
2770 if (UseCompressedOops) { |
da91efe96a93
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diff
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|
2771 return (HeapWord*)loader->obj_field_addr<narrowOop>(_dependencies_offset); |
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diff
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|
2772 } else { |
da91efe96a93
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diff
changeset
|
2773 return (HeapWord*)loader->obj_field_addr<oop>(_dependencies_offset); |
da91efe96a93
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|
2774 } |
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|
2775 } |
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|
2776 |
3938 | 2777 void java_lang_ClassLoader::compute_offsets() { |
2778 assert(!offsets_computed, "offsets should be initialized only once"); | |
2779 offsets_computed = true; | |
2780 | |
2781 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
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|
2782 Klass* k1 = SystemDictionary::ClassLoader_klass(); |
3938 | 2783 compute_optional_offset(parallelCapable_offset, |
2784 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
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|
2785 |
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|
2786 CLASSLOADER_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
3938 | 2787 } |
0 | 2788 |
2789 oop java_lang_ClassLoader::parent(oop loader) { | |
6266
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|
2790 assert(is_instance(loader), "loader must be oop"); |
0 | 2791 return loader->obj_field(parent_offset); |
2792 } | |
2793 | |
6266
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|
2794 bool java_lang_ClassLoader::isAncestor(oop loader, oop cl) { |
1d7922586cf6
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|
2795 assert(is_instance(loader), "loader must be oop"); |
1d7922586cf6
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|
2796 assert(cl == NULL || is_instance(cl), "cl argument must be oop"); |
1d7922586cf6
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|
2797 oop acl = loader; |
1d7922586cf6
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|
2798 debug_only(jint loop_count = 0); |
1d7922586cf6
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diff
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|
2799 // This loop taken verbatim from ClassLoader.java: |
1d7922586cf6
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6224
diff
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|
2800 do { |
1d7922586cf6
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diff
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|
2801 acl = parent(acl); |
1d7922586cf6
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6224
diff
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|
2802 if (cl == acl) { |
1d7922586cf6
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parents:
6224
diff
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|
2803 return true; |
1d7922586cf6
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6224
diff
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|
2804 } |
1d7922586cf6
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|
2805 assert(++loop_count > 0, "loop_count overflow"); |
1d7922586cf6
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diff
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|
2806 } while (acl != NULL); |
1d7922586cf6
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6224
diff
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|
2807 return false; |
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|
2808 } |
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|
2809 |
0 | 2810 |
3938 | 2811 // For class loader classes, parallelCapable defined |
2812 // based on non-null field | |
2813 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
2814 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
2815 if (!JDK_Version::is_gte_jdk17x_version() | |
2816 || parallelCapable_offset == -1) { | |
2817 // Default for backward compatibility is false | |
2818 return false; | |
2819 } | |
2820 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
2821 } | |
2822 | |
0 | 2823 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
2824 // Fix for 4474172; see evaluation for more details | |
2825 loader = non_reflection_class_loader(loader); | |
2826 | |
2827 oop cl = SystemDictionary::java_system_loader(); | |
2828 while(cl != NULL) { | |
2829 if (cl == loader) return true; | |
2830 cl = parent(cl); | |
2831 } | |
2832 return false; | |
2833 } | |
2834 | |
2835 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2836 if (loader != NULL) { | |
2837 // See whether this is one of the class loaders associated with | |
2838 // the generated bytecodes for reflection, and if so, "magically" | |
2839 // delegate to its parent to prevent class loading from occurring | |
2840 // in places where applications using reflection didn't expect it. | |
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|
2841 Klass* delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2842 // This might be null in non-1.4 JDKs |
2843 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2844 return parent(loader); | |
2845 } | |
2846 } | |
2847 return loader; | |
2848 } | |
2849 | |
2850 | |
2851 // Support for java_lang_System | |
2852 int java_lang_System::in_offset_in_bytes() { | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
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6725
diff
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|
2853 return (InstanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2854 } |
2855 | |
2856 | |
2857 int java_lang_System::out_offset_in_bytes() { | |
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|
2858 return (InstanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2859 } |
2860 | |
2861 | |
2862 int java_lang_System::err_offset_in_bytes() { | |
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2863 return (InstanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2864 } |
2865 | |
2866 | |
2867 | |
3938 | 2868 int java_lang_Class::_klass_offset; |
2869 int java_lang_Class::_array_klass_offset; | |
2870 int java_lang_Class::_resolved_constructor_offset; | |
2871 int java_lang_Class::_oop_size_offset; | |
2872 int java_lang_Class::_static_oop_field_count_offset; | |
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2873 GrowableArray<Klass*>* java_lang_Class::_fixup_mirror_list = NULL; |
0 | 2874 int java_lang_Throwable::backtrace_offset; |
2875 int java_lang_Throwable::detailMessage_offset; | |
2876 int java_lang_Throwable::cause_offset; | |
2877 int java_lang_Throwable::stackTrace_offset; | |
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2878 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 2879 int java_lang_reflect_AccessibleObject::override_offset; |
2880 int java_lang_reflect_Method::clazz_offset; | |
2881 int java_lang_reflect_Method::name_offset; | |
2882 int java_lang_reflect_Method::returnType_offset; | |
2883 int java_lang_reflect_Method::parameterTypes_offset; | |
2884 int java_lang_reflect_Method::exceptionTypes_offset; | |
2885 int java_lang_reflect_Method::slot_offset; | |
2886 int java_lang_reflect_Method::modifiers_offset; | |
2887 int java_lang_reflect_Method::signature_offset; | |
2888 int java_lang_reflect_Method::annotations_offset; | |
2889 int java_lang_reflect_Method::parameter_annotations_offset; | |
2890 int java_lang_reflect_Method::annotation_default_offset; | |
2891 int java_lang_reflect_Constructor::clazz_offset; | |
2892 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2893 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2894 int java_lang_reflect_Constructor::slot_offset; | |
2895 int java_lang_reflect_Constructor::modifiers_offset; | |
2896 int java_lang_reflect_Constructor::signature_offset; | |
2897 int java_lang_reflect_Constructor::annotations_offset; | |
2898 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2899 int java_lang_reflect_Field::clazz_offset; | |
2900 int java_lang_reflect_Field::name_offset; | |
2901 int java_lang_reflect_Field::type_offset; | |
2902 int java_lang_reflect_Field::slot_offset; | |
2903 int java_lang_reflect_Field::modifiers_offset; | |
2904 int java_lang_reflect_Field::signature_offset; | |
2905 int java_lang_reflect_Field::annotations_offset; | |
2906 int java_lang_boxing_object::value_offset; | |
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2907 int java_lang_boxing_object::long_value_offset; |
0 | 2908 int java_lang_ref_Reference::referent_offset; |
2909 int java_lang_ref_Reference::queue_offset; | |
2910 int java_lang_ref_Reference::next_offset; | |
2911 int java_lang_ref_Reference::discovered_offset; | |
2912 int java_lang_ref_Reference::static_lock_offset; | |
2913 int java_lang_ref_Reference::static_pending_offset; | |
2914 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2915 int java_lang_ref_SoftReference::timestamp_offset; | |
2916 int java_lang_ref_SoftReference::static_clock_offset; | |
2917 int java_lang_ClassLoader::parent_offset; | |
2918 int java_lang_System::static_in_offset; | |
2919 int java_lang_System::static_out_offset; | |
2920 int java_lang_System::static_err_offset; | |
2921 int java_lang_StackTraceElement::declaringClass_offset; | |
2922 int java_lang_StackTraceElement::methodName_offset; | |
2923 int java_lang_StackTraceElement::fileName_offset; | |
2924 int java_lang_StackTraceElement::lineNumber_offset; | |
2925 int java_lang_AssertionStatusDirectives::classes_offset; | |
2926 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2927 int java_lang_AssertionStatusDirectives::packages_offset; | |
2928 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2929 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2930 int java_nio_Buffer::_limit_offset; | |
2931 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
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2932 int sun_reflect_ConstantPool::_oop_offset; |
0 | 2933 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; |
2934 | |
2935 | |
2936 // Support for java_lang_StackTraceElement | |
2937 | |
2938 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2939 element->obj_field_put(fileName_offset, value); | |
2940 } | |
2941 | |
2942 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2943 element->obj_field_put(declaringClass_offset, value); | |
2944 } | |
2945 | |
2946 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2947 element->obj_field_put(methodName_offset, value); | |
2948 } | |
2949 | |
2950 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2951 element->int_field_put(lineNumber_offset, value); | |
2952 } | |
2953 | |
2954 | |
2955 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2956 | |
2957 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2958 o->obj_field_put(classes_offset, val); | |
2959 } | |
2960 | |
2961 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2962 o->obj_field_put(classEnabled_offset, val); | |
2963 } | |
2964 | |
2965 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2966 o->obj_field_put(packages_offset, val); | |
2967 } | |
2968 | |
2969 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2970 o->obj_field_put(packageEnabled_offset, val); | |
2971 } | |
2972 | |
2973 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2974 o->bool_field_put(deflt_offset, val); | |
2975 } | |
2976 | |
2977 | |
2978 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2979 int java_nio_Buffer::limit_offset() { | |
2980 return _limit_offset; | |
2981 } | |
2982 | |
2983 | |
2984 void java_nio_Buffer::compute_offsets() { | |
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2985 Klass* k = SystemDictionary::nio_Buffer_klass(); |
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2986 assert(k != NULL, "must be loaded in 1.4+"); |
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2987 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2988 } |
2989 | |
2990 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2991 if (_owner_offset != 0) return; | |
2992 | |
2993 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2994 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
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2995 Klass* k = SystemDictionary::abstract_ownable_synchronizer_klass(); |
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2996 compute_offset(_owner_offset, k, |
0 | 2997 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2998 } | |
2999 | |
3000 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
3001 assert(_owner_offset != 0, "Must be initialized"); | |
3002 return obj->obj_field(_owner_offset); | |
3003 } | |
3004 | |
3005 // Compute hard-coded offsets | |
3006 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
3007 // are not available to determine the offset_of_static_fields. | |
3008 void JavaClasses::compute_hard_coded_offsets() { | |
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3009 const int x = heapOopSize; |
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3010 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 3011 |
3012 // Throwable Class | |
3013 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
3014 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
3015 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
3016 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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3017 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3018 |
3019 // java_lang_boxing_object | |
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3020 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3021 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3022 |
3023 // java_lang_ref_Reference: | |
3024 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3025 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3026 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3027 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3028 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3029 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3030 // Artificial fields for java_lang_ref_Reference | |
3031 // The first field is for the discovered field added in 1.4 | |
3032 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3033 | |
3034 // java_lang_ref_SoftReference Class | |
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3035 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3036 // Don't multiply static fields because they are always in wordSize units |
3037 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3038 | |
3039 // java_lang_ClassLoader | |
3040 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3041 | |
3042 // java_lang_System | |
3043 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3044 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3045 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
3046 | |
3047 // java_lang_StackTraceElement | |
3048 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3049 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3050 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3051 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3052 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3053 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3054 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3055 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3056 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3057 | |
3058 } | |
3059 | |
3060 | |
3061 // Compute non-hard-coded field offsets of all the classes in this file | |
3062 void JavaClasses::compute_offsets() { | |
3938 | 3063 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3064 java_lang_ClassLoader::compute_offsets(); | |
0 | 3065 java_lang_Thread::compute_offsets(); |
3066 java_lang_ThreadGroup::compute_offsets(); | |
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3067 if (EnableInvokeDynamic) { |
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3068 java_lang_invoke_MethodHandle::compute_offsets(); |
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3069 java_lang_invoke_MemberName::compute_offsets(); |
6266
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3070 java_lang_invoke_LambdaForm::compute_offsets(); |
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3071 java_lang_invoke_MethodType::compute_offsets(); |
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3072 java_lang_invoke_CallSite::compute_offsets(); |
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3073 } |
0 | 3074 java_security_AccessControlContext::compute_offsets(); |
3075 // Initialize reflection classes. The layouts of these classes | |
3076 // changed with the new reflection implementation in JDK 1.4, and | |
3077 // since the Universe doesn't know what JDK version it is until this | |
3078 // point we defer computation of these offsets until now. | |
3079 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3080 java_lang_reflect_Method::compute_offsets(); | |
3081 java_lang_reflect_Constructor::compute_offsets(); | |
3082 java_lang_reflect_Field::compute_offsets(); | |
3083 if (JDK_Version::is_gte_jdk14x_version()) { | |
3084 java_nio_Buffer::compute_offsets(); | |
3085 } | |
3086 if (JDK_Version::is_gte_jdk15x_version()) { | |
3087 sun_reflect_ConstantPool::compute_offsets(); | |
3088 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3089 } | |
710 | 3090 |
3091 // generated interpreter code wants to know about the offsets we just computed: | |
3092 AbstractAssembler::update_delayed_values(); | |
0 | 3093 } |
3094 | |
3095 #ifndef PRODUCT | |
3096 | |
3097 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3098 // against changes in the class files | |
3099 | |
3100 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3101 EXCEPTION_MARK; | |
3102 fieldDescriptor fd; | |
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3103 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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3104 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3105 instanceKlassHandle h_klass (THREAD, k); |
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3106 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3107 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3108 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3109 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3110 return false; | |
3111 } | |
3112 if (fd.is_static()) { | |
3113 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3114 return false; | |
3115 } | |
3116 if (fd.offset() == hardcoded_offset ) { | |
3117 return true; | |
3118 } else { | |
3119 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3120 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3121 return false; | |
3122 } | |
3123 } | |
3124 | |
3125 | |
3126 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3127 EXCEPTION_MARK; | |
3128 fieldDescriptor fd; | |
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3129 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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3130 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
0 | 3131 instanceKlassHandle h_klass (THREAD, k); |
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3132 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3133 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3134 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3135 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3136 return false; | |
3137 } | |
3138 if (!fd.is_static()) { | |
3139 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3140 return false; | |
3141 } | |
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3142 if (fd.offset() == hardcoded_offset + InstanceMirrorKlass::offset_of_static_fields()) { |
0 | 3143 return true; |
3144 } else { | |
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3145 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - InstanceMirrorKlass::offset_of_static_fields()); |
0 | 3146 return false; |
3147 } | |
3148 } | |
3149 | |
3150 | |
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3151 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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|
3152 EXCEPTION_MARK; |
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3153 fieldDescriptor fd; |
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|
3154 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
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3155 Klass* k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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3156 instanceKlassHandle h_klass (THREAD, k); |
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3157 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3158 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3159 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
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3160 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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3161 return false; |
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3162 } |
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3163 if (!fd.is_static() || !fd.has_initial_value()) { |
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3164 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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3165 return false; |
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3166 } |
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3167 if (!fd.initial_value_tag().is_int()) { |
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3168 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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3169 return false; |
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3170 } |
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3171 jint field_value = fd.int_initial_value(); |
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3172 if (field_value == hardcoded_constant) { |
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3173 return true; |
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3174 } else { |
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3175 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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3176 return false; |
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3177 } |
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3178 } |
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3179 |
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3180 |
0 | 3181 // Check the hard-coded field offsets of all the classes in this file |
3182 | |
3183 void JavaClasses::check_offsets() { | |
3184 bool valid = true; | |
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3185 HandleMark hm; |
0 | 3186 |
3187 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3188 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3189 | |
165
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3190 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3191 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3192 |
0 | 3193 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3194 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3195 | |
132
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3196 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3197 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3198 |
0 | 3199 // java.lang.String |
3200 | |
3201 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
6057 | 3202 if (java_lang_String::has_offset_field()) { |
3203 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3204 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3205 } | |
3206 if (java_lang_String::has_hash_field()) { | |
3207 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3208 } | |
0 | 3209 |
3210 // java.lang.Class | |
3211 | |
3212 // Fake fields | |
3213 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3214 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3215 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3216 | |
3217 // java.lang.Throwable | |
3218 | |
3219 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3220 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3221 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3222 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3223 | |
3224 // Boxed primitive objects (java_lang_boxing_object) | |
3225 | |
3226 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3227 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3228 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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3229 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3230 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3231 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3232 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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3233 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3234 |
3235 // java.lang.ClassLoader | |
3236 | |
3237 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3238 | |
3239 // java.lang.System | |
3240 | |
3241 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3242 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3243 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3244 | |
3245 // java.lang.StackTraceElement | |
3246 | |
3247 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3248 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3249 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3250 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3251 | |
3252 // java.lang.ref.Reference | |
3253 | |
3254 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3255 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3256 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3257 // Fake field | |
3258 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3259 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3260 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3261 | |
3262 // java.lang.ref.SoftReference | |
3263 | |
3264 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3265 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3266 | |
3267 // java.lang.AssertionStatusDirectives | |
3268 // | |
3269 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3270 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3271 // into merlin "for some time." Without it, the vm will fail with early | |
3272 // merlin builds. | |
3273 | |
3274 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3275 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3276 const char* sig = "[Ljava/lang/String;"; | |
3277 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3278 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3279 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3280 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3281 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3282 } | |
3283 | |
3284 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3285 } | |
3286 | |
3287 #endif // PRODUCT | |
3288 | |
3938 | 3289 int InjectedField::compute_offset() { |
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3290 Klass* klass_oop = klass(); |
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3291 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
3938 | 3292 if (!may_be_java && !fs.access_flags().is_internal()) { |
3293 // Only look at injected fields | |
3294 continue; | |
3295 } | |
3296 if (fs.name() == name() && fs.signature() == signature()) { | |
3297 return fs.offset(); | |
3298 } | |
3299 } | |
3300 ResourceMark rm; | |
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3301 tty->print_cr("Invalid layout of %s at %s/%s%s", InstanceKlass::cast(klass_oop)->external_name(), name()->as_C_string(), signature()->as_C_string(), may_be_java ? " (may_be_java)" : ""); |
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3302 #ifndef PRODUCT |
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3303 klass_oop->print(); |
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3304 tty->print_cr("all fields:"); |
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3305 for (AllFieldStream fs(InstanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { |
6266
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3306 tty->print_cr(" name: %s, sig: %s, flags: %08x", fs.name()->as_C_string(), fs.signature()->as_C_string(), fs.access_flags().as_int()); |
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3307 } |
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3308 #endif //PRODUCT |
3938 | 3309 fatal("Invalid layout of preloaded class"); |
3310 return -1; | |
3311 } | |
3312 | |
0 | 3313 void javaClasses_init() { |
3314 JavaClasses::compute_offsets(); | |
3315 JavaClasses::check_offsets(); | |
3316 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3317 } |