Mercurial > hg > graal-compiler
annotate src/share/vm/classfile/javaClasses.cpp @ 3960:f08d439fab8c
7089790: integrate bsd-port changes
Reviewed-by: kvn, twisti, jrose
Contributed-by: Kurt Miller <kurt@intricatesoftware.com>, Greg Lewis <glewis@eyesbeyond.com>, Jung-uk Kim <jkim@freebsd.org>, Christos Zoulas <christos@zoulas.com>, Landon Fuller <landonf@plausible.coop>, The FreeBSD Foundation <board@freebsdfoundation.org>, Michael Franz <mvfranz@gmail.com>, Roger Hoover <rhoover@apple.com>, Alexander Strange <astrange@apple.com>
author | never |
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date | Sun, 25 Sep 2011 16:03:29 -0700 |
parents | 8ed53447f690 |
children | e5928e7dab26 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/symbolTable.hpp" | |
28 #include "classfile/vmSymbols.hpp" | |
29 #include "code/debugInfo.hpp" | |
30 #include "code/pcDesc.hpp" | |
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31 #include "compiler/compilerOracle.hpp" |
1972 | 32 #include "interpreter/interpreter.hpp" |
33 #include "memory/oopFactory.hpp" | |
34 #include "memory/resourceArea.hpp" | |
35 #include "memory/universe.inline.hpp" | |
3938 | 36 #include "oops/fieldStreams.hpp" |
1972 | 37 #include "oops/instanceKlass.hpp" |
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38 #include "oops/instanceMirrorKlass.hpp" |
1972 | 39 #include "oops/klass.hpp" |
40 #include "oops/klassOop.hpp" | |
41 #include "oops/methodOop.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 | |
710 | 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 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 122 bool allow_super = false) { |
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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)) { |
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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 fatal("Invalid layout of preloaded class"); |
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129 } |
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130 dest_offset = fd.offset(); |
0 | 131 } |
132 | |
133 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
132
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134 static void |
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135 compute_optional_offset(int& dest_offset, |
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136 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 137 bool allow_super = false) { |
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138 fieldDescriptor fd; |
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139 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 140 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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141 dest_offset = fd.offset(); |
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142 } |
0 | 143 } |
144 | |
710 | 145 |
0 | 146 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
147 // Create the String object first, so there's a chance that the String | |
148 // and the char array it points to end up in the same cache line. | |
149 oop obj; | |
150 if (tenured) { | |
1142 | 151 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 152 } else { |
1142 | 153 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 154 } |
155 | |
156 // Create the char array. The String object must be handlized here | |
157 // because GC can happen as a result of the allocation attempt. | |
158 Handle h_obj(THREAD, obj); | |
159 typeArrayOop buffer; | |
160 if (tenured) { | |
161 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
162 } else { | |
163 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
164 } | |
165 | |
166 // Point the String at the char array | |
167 obj = h_obj(); | |
168 set_value(obj, buffer); | |
169 // No need to zero the offset, allocation zero'ed the entire String object | |
170 assert(offset(obj) == 0, "initial String offset should be zero"); | |
171 //set_offset(obj, 0); | |
172 set_count(obj, length); | |
173 | |
174 return h_obj; | |
175 } | |
176 | |
177 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
178 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
179 typeArrayOop buffer = value(h_obj()); | |
180 for (int index = 0; index < length; index++) { | |
181 buffer->char_at_put(index, unicode[index]); | |
182 } | |
183 return h_obj; | |
184 } | |
185 | |
186 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
187 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
188 } | |
189 | |
190 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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191 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
0 | 192 } |
193 | |
194 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
195 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
196 return h_obj(); | |
197 } | |
198 | |
199 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
200 if (utf8_str == NULL) { | |
201 return Handle(); | |
202 } | |
203 int length = UTF8::unicode_length(utf8_str); | |
204 Handle h_obj = basic_create(length, false, CHECK_NH); | |
205 if (length > 0) { | |
206 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
207 } | |
208 return h_obj; | |
209 } | |
210 | |
211 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
212 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
213 return h_obj(); | |
214 } | |
215 | |
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216 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 217 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
218 Handle h_obj = basic_create(length, false, CHECK_NH); | |
219 if (length > 0) { | |
220 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
221 } | |
222 return h_obj; | |
223 } | |
224 | |
225 // Converts a C string to a Java String based on current encoding | |
226 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
227 assert(str != NULL, "bad arguments"); | |
228 | |
229 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
230 static to_java_string_fn_t _to_java_string_fn = NULL; | |
231 | |
232 if (_to_java_string_fn == NULL) { | |
233 void *lib_handle = os::native_java_library(); | |
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234 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 235 if (_to_java_string_fn == NULL) { |
236 fatal("NewStringPlatform missing"); | |
237 } | |
238 } | |
239 | |
240 jstring js = NULL; | |
241 { JavaThread* thread = (JavaThread*)THREAD; | |
242 assert(thread->is_Java_thread(), "must be java thread"); | |
22
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243 HandleMark hm(thread); |
0 | 244 ThreadToNativeFromVM ttn(thread); |
245 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
246 } | |
247 return Handle(THREAD, JNIHandles::resolve(js)); | |
248 } | |
249 | |
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250 // Converts a Java String to a native C string that can be used for |
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251 // native OS calls. |
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252 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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253 |
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254 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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255 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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256 |
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257 if (_to_platform_string_fn == NULL) { |
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258 void *lib_handle = os::native_java_library(); |
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259 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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260 if (_to_platform_string_fn == NULL) { |
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261 fatal("GetStringPlatformChars missing"); |
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262 } |
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263 } |
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264 |
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265 char *native_platform_string; |
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266 { JavaThread* thread = (JavaThread*)THREAD; |
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267 assert(thread->is_Java_thread(), "must be java thread"); |
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268 JNIEnv *env = thread->jni_environment(); |
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269 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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270 bool is_copy; |
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271 HandleMark hm(thread); |
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272 ThreadToNativeFromVM ttn(thread); |
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273 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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274 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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275 JNIHandles::destroy_local(js); |
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276 } |
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277 return native_platform_string; |
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278 } |
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279 |
0 | 280 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
281 oop obj = java_string(); | |
282 // Typical usage is to convert all '/' to '.' in string. | |
283 typeArrayOop value = java_lang_String::value(obj); | |
284 int offset = java_lang_String::offset(obj); | |
285 int length = java_lang_String::length(obj); | |
286 | |
287 // First check if any from_char exist | |
288 int index; // Declared outside, used later | |
289 for (index = 0; index < length; index++) { | |
290 if (value->char_at(index + offset) == from_char) { | |
291 break; | |
292 } | |
293 } | |
294 if (index == length) { | |
295 // No from_char, so do not copy. | |
296 return java_string; | |
297 } | |
298 | |
299 // Create new UNICODE buffer. Must handlize value because GC | |
300 // may happen during String and char array creation. | |
301 typeArrayHandle h_value(THREAD, value); | |
302 Handle string = basic_create(length, false, CHECK_NH); | |
303 | |
304 typeArrayOop from_buffer = h_value(); | |
305 typeArrayOop to_buffer = java_lang_String::value(string()); | |
306 | |
307 // Copy contents | |
308 for (index = 0; index < length; index++) { | |
309 jchar c = from_buffer->char_at(index + offset); | |
310 if (c == from_char) { | |
311 c = to_char; | |
312 } | |
313 to_buffer->char_at_put(index, c); | |
314 } | |
315 return string; | |
316 } | |
317 | |
318 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
319 typeArrayOop value = java_lang_String::value(java_string); | |
320 int offset = java_lang_String::offset(java_string); | |
321 length = java_lang_String::length(java_string); | |
322 | |
323 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
324 for (int index = 0; index < length; index++) { | |
325 result[index] = value->char_at(index + offset); | |
326 } | |
327 return result; | |
328 } | |
329 | |
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330 unsigned int java_lang_String::hash_string(oop java_string) { |
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331 typeArrayOop value = java_lang_String::value(java_string); |
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332 int offset = java_lang_String::offset(java_string); |
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333 int length = java_lang_String::length(java_string); |
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334 |
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335 if (length == 0) return 0; |
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336 return hash_string(value->char_at_addr(offset), length); |
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337 } |
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338 |
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339 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 340 oop obj = java_string(); |
341 typeArrayOop value = java_lang_String::value(obj); | |
342 int offset = java_lang_String::offset(obj); | |
343 int length = java_lang_String::length(obj); | |
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344 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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345 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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346 return sym; |
0 | 347 } |
348 | |
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349 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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350 typeArrayOop value = java_lang_String::value(java_string); |
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351 int offset = java_lang_String::offset(java_string); |
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352 int length = java_lang_String::length(java_string); |
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353 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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354 return SymbolTable::probe_unicode(base, length); |
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355 } |
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356 |
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357 |
0 | 358 int java_lang_String::utf8_length(oop java_string) { |
359 typeArrayOop value = java_lang_String::value(java_string); | |
360 int offset = java_lang_String::offset(java_string); | |
361 int length = java_lang_String::length(java_string); | |
362 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
363 return UNICODE::utf8_length(position, length); | |
364 } | |
365 | |
366 char* java_lang_String::as_utf8_string(oop java_string) { | |
367 typeArrayOop value = java_lang_String::value(java_string); | |
368 int offset = java_lang_String::offset(java_string); | |
369 int length = java_lang_String::length(java_string); | |
370 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
371 return UNICODE::as_utf8(position, length); | |
372 } | |
373 | |
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374 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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375 typeArrayOop value = java_lang_String::value(java_string); |
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376 int offset = java_lang_String::offset(java_string); |
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377 int length = java_lang_String::length(java_string); |
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378 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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379 return UNICODE::as_utf8(position, length, buf, buflen); |
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380 } |
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381 |
0 | 382 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
383 typeArrayOop value = java_lang_String::value(java_string); | |
384 int offset = java_lang_String::offset(java_string); | |
385 int length = java_lang_String::length(java_string); | |
386 assert(start + len <= length, "just checking"); | |
387 jchar* position = value->char_at_addr(offset + start); | |
388 return UNICODE::as_utf8(position, len); | |
389 } | |
390 | |
391 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
392 assert(SharedSkipVerify || | |
1142 | 393 java_string->klass() == SystemDictionary::String_klass(), |
0 | 394 "must be java_string"); |
395 typeArrayOop value = java_lang_String::value(java_string); | |
396 int offset = java_lang_String::offset(java_string); | |
397 int length = java_lang_String::length(java_string); | |
398 if (length != len) { | |
399 return false; | |
400 } | |
401 for (int i = 0; i < len; i++) { | |
402 if (value->char_at(i + offset) != chars[i]) { | |
403 return false; | |
404 } | |
405 } | |
406 return true; | |
407 } | |
408 | |
409 void java_lang_String::print(Handle java_string, outputStream* st) { | |
410 oop obj = java_string(); | |
1142 | 411 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 412 typeArrayOop value = java_lang_String::value(obj); |
413 int offset = java_lang_String::offset(obj); | |
414 int length = java_lang_String::length(obj); | |
415 | |
416 int end = MIN2(length, 100); | |
417 if (value == NULL) { | |
418 // This can happen if, e.g., printing a String | |
419 // object before its initializer has been called | |
420 st->print_cr("NULL"); | |
421 } else { | |
422 st->print("\""); | |
423 for (int index = 0; index < length; index++) { | |
424 st->print("%c", value->char_at(index + offset)); | |
425 } | |
426 st->print("\""); | |
427 } | |
428 } | |
429 | |
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430 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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431 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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432 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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433 if (fd->has_initial_value()) { |
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434 BasicType t = fd->field_type(); |
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435 switch (t) { |
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436 case T_BYTE: |
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437 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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438 break; |
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439 case T_BOOLEAN: |
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440 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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441 break; |
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442 case T_CHAR: |
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443 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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444 break; |
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445 case T_SHORT: |
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446 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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447 break; |
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448 case T_INT: |
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449 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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450 break; |
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451 case T_FLOAT: |
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452 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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453 break; |
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454 case T_DOUBLE: |
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455 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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456 break; |
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457 case T_LONG: |
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458 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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459 break; |
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460 case T_OBJECT: |
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461 { |
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462 #ifdef ASSERT |
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463 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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464 assert(fd->signature() == sym, "just checking"); |
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465 #endif |
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466 oop string = fd->string_initial_value(CHECK); |
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467 mirror()->obj_field_put(fd->offset(), string); |
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468 } |
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469 break; |
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470 default: |
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471 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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472 "Illegal ConstantValue attribute in class file"); |
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473 } |
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474 } |
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475 } |
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476 |
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477 |
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478 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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479 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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480 |
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481 if (k->oop_is_instance()) { |
3938 | 482 // During bootstrap, java.lang.Class wasn't loaded so static field |
483 // offsets were computed without the size added it. Go back and | |
484 // update all the static field offsets to included the size. | |
485 for (JavaFieldStream fs(instanceKlass::cast(k())); !fs.done(); fs.next()) { | |
486 if (fs.access_flags().is_static()) { | |
487 int real_offset = fs.offset() + instanceMirrorKlass::offset_of_static_fields(); | |
488 fs.set_offset(real_offset); | |
489 } | |
490 } | |
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491 } |
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492 create_mirror(k, CHECK); |
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493 } |
0 | 494 |
495 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
496 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
497 // Use this moment of initialization to cache modifier_flags also, | |
498 // to support Class.getModifiers(). Instance classes recalculate | |
499 // the cached flags after the class file is parsed, but before the | |
500 // class is put into the system dictionary. | |
501 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
502 k->set_modifier_flags(computed_modifiers); | |
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503 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
0 | 504 // Allocate mirror (java.lang.Class instance) |
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505 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
0 | 506 // Setup indirections |
3938 | 507 mirror->obj_field_put(_klass_offset, k()); |
0 | 508 k->set_java_mirror(mirror()); |
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509 |
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510 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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511 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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512 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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513 |
0 | 514 // It might also have a component mirror. This mirror must already exist. |
515 if (k->oop_is_javaArray()) { | |
516 Handle comp_mirror; | |
517 if (k->oop_is_typeArray()) { | |
518 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
519 comp_mirror = Universe::java_mirror(type); | |
520 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
521 } else if (k->oop_is_objArray()) { | |
522 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
523 if (element_klass != NULL | |
524 && (Klass::cast(element_klass)->oop_is_instance() || | |
525 Klass::cast(element_klass)->oop_is_javaArray())) { | |
526 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
527 assert(comp_mirror.not_null(), "must have element mirror"); | |
528 } | |
529 // else some object array internal to the VM, like systemObjArrayKlassObj | |
530 } | |
531 if (comp_mirror.not_null()) { | |
532 // Two-way link between the array klass and its component mirror: | |
533 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
534 set_array_klass(comp_mirror(), k->as_klassOop()); | |
535 } | |
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536 } else if (k->oop_is_instance()) { |
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537 // Initialize static fields |
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538 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 539 } |
540 return mirror(); | |
541 } else { | |
542 return NULL; | |
543 } | |
544 } | |
545 | |
546 | |
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547 |
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548 int java_lang_Class::oop_size(oop java_class) { |
3938 | 549 assert(_oop_size_offset != 0, "must be set"); |
550 return java_class->int_field(_oop_size_offset); | |
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551 } |
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552 void java_lang_Class::set_oop_size(oop java_class, int size) { |
3938 | 553 assert(_oop_size_offset != 0, "must be set"); |
554 java_class->int_field_put(_oop_size_offset, size); | |
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555 } |
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556 int java_lang_Class::static_oop_field_count(oop java_class) { |
3938 | 557 assert(_static_oop_field_count_offset != 0, "must be set"); |
558 return java_class->int_field(_static_oop_field_count_offset); | |
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559 } |
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560 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
3938 | 561 assert(_static_oop_field_count_offset != 0, "must be set"); |
562 java_class->int_field_put(_static_oop_field_count_offset, size); | |
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563 } |
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564 |
0 | 565 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
566 // This should be improved by adding a field at the Java level or by | |
567 // introducing a new VM klass (see comment in ClassFileParser) | |
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568 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
0 | 569 if (type != T_VOID) { |
570 klassOop aklass = Universe::typeArrayKlassObj(type); | |
571 assert(aklass != NULL, "correct bootstrap"); | |
572 set_array_klass(java_class, aklass); | |
573 } | |
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574 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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575 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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576 java_lang_Class::set_static_oop_field_count(java_class, 0); |
0 | 577 return java_class; |
578 } | |
579 | |
580 | |
581 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
582 //%note memory_2 | |
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583 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
3938 | 584 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
0 | 585 assert(k == NULL || k->is_klass(), "type check"); |
586 return k; | |
587 } | |
588 | |
589 | |
665
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590 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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591 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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592 Symbol* name = NULL; |
665
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593 bool is_instance = false; |
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594 if (is_primitive(java_class)) { |
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595 name = vmSymbols::type_signature(primitive_type(java_class)); |
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596 } else { |
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597 klassOop k = as_klassOop(java_class); |
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598 is_instance = Klass::cast(k)->oop_is_instance(); |
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599 name = Klass::cast(k)->name(); |
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600 } |
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601 if (name == NULL) { |
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602 st->print("<null>"); |
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603 return; |
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604 } |
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605 if (is_instance) st->print("L"); |
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606 st->write((char*) name->base(), (int) name->utf8_length()); |
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607 if (is_instance) st->print(";"); |
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608 } |
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609 |
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610 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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611 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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612 Symbol* name; |
665
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613 if (is_primitive(java_class)) { |
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614 name = vmSymbols::type_signature(primitive_type(java_class)); |
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615 // Because this can create a new symbol, the caller has to decrement |
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616 // the refcount, so make adjustment here and below for symbols returned |
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617 // that are not created or incremented due to a successful lookup. |
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618 name->increment_refcount(); |
665
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619 } else { |
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620 klassOop k = as_klassOop(java_class); |
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621 if (!Klass::cast(k)->oop_is_instance()) { |
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622 name = Klass::cast(k)->name(); |
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623 name->increment_refcount(); |
665
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624 } else { |
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625 ResourceMark rm; |
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626 const char* sigstr = Klass::cast(k)->signature_name(); |
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627 int siglen = (int) strlen(sigstr); |
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628 if (!intern_if_not_found) { |
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629 name = SymbolTable::probe(sigstr, siglen); |
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630 } else { |
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631 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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632 } |
665
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633 } |
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634 } |
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635 return name; |
665
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636 } |
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637 |
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638 |
0 | 639 klassOop java_lang_Class::array_klass(oop java_class) { |
3938 | 640 klassOop k = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 641 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); |
642 return k; | |
643 } | |
644 | |
645 | |
646 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
647 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
3938 | 648 java_class->obj_field_put(_array_klass_offset, klass); |
0 | 649 } |
650 | |
651 | |
652 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
3938 | 653 oop constructor = java_class->obj_field(_resolved_constructor_offset); |
0 | 654 assert(constructor == NULL || constructor->is_method(), "should be method"); |
655 return methodOop(constructor); | |
656 } | |
657 | |
658 | |
659 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
660 assert(constructor->is_method(), "should be method"); | |
3938 | 661 java_class->obj_field_put(_resolved_constructor_offset, constructor); |
0 | 662 } |
663 | |
664 | |
665 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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666 // should assert: |
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667 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
3938 | 668 klassOop k = klassOop(java_class->obj_field(_klass_offset)); |
0 | 669 return k == NULL; |
670 } | |
671 | |
672 | |
673 BasicType java_lang_Class::primitive_type(oop java_class) { | |
674 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
3938 | 675 klassOop ak = klassOop(java_class->obj_field(_array_klass_offset)); |
0 | 676 BasicType type = T_VOID; |
677 if (ak != NULL) { | |
678 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
679 type = arrayKlass::cast(ak)->element_type(); | |
680 } else { | |
681 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
682 } | |
683 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
684 return type; | |
685 } | |
686 | |
665
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687 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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688 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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689 if (is_primitive(java_class)) { |
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690 if (reference_klass != NULL) |
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691 (*reference_klass) = NULL; |
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692 return primitive_type(java_class); |
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693 } else { |
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694 if (reference_klass != NULL) |
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695 (*reference_klass) = as_klassOop(java_class); |
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696 return T_OBJECT; |
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697 } |
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698 } |
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699 |
0 | 700 |
701 oop java_lang_Class::primitive_mirror(BasicType t) { | |
702 oop mirror = Universe::java_mirror(t); | |
1142 | 703 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 704 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
705 return mirror; | |
706 } | |
707 | |
708 bool java_lang_Class::offsets_computed = false; | |
709 int java_lang_Class::classRedefinedCount_offset = -1; | |
710 | |
711 void java_lang_Class::compute_offsets() { | |
712 assert(!offsets_computed, "offsets should be initialized only once"); | |
713 offsets_computed = true; | |
714 | |
3938 | 715 klassOop klass_oop = SystemDictionary::Class_klass(); |
0 | 716 // The classRedefinedCount field is only present starting in 1.5, |
717 // so don't go fatal. | |
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718 compute_optional_offset(classRedefinedCount_offset, |
3938 | 719 klass_oop, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
720 | |
721 CLASS_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
0 | 722 } |
723 | |
724 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
725 if (!JDK_Version::is_gte_jdk15x_version() | |
726 || classRedefinedCount_offset == -1) { | |
727 // The classRedefinedCount field is only present starting in 1.5. | |
728 // If we don't have an offset for it then just return -1 as a marker. | |
729 return -1; | |
730 } | |
731 | |
732 return the_class_mirror->int_field(classRedefinedCount_offset); | |
733 } | |
734 | |
735 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
736 if (!JDK_Version::is_gte_jdk15x_version() | |
737 || classRedefinedCount_offset == -1) { | |
738 // The classRedefinedCount field is only present starting in 1.5. | |
739 // If we don't have an offset for it then nothing to set. | |
740 return; | |
741 } | |
742 | |
743 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
744 } | |
745 | |
746 | |
747 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
748 // platform thread structure, and a eetop offset which was used for thread | |
749 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
750 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
751 // instead of the privateInfo_offset. | |
752 // | |
753 // Note: The stackSize field is only present starting in 1.4. | |
754 | |
755 int java_lang_Thread::_name_offset = 0; | |
756 int java_lang_Thread::_group_offset = 0; | |
757 int java_lang_Thread::_contextClassLoader_offset = 0; | |
758 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
759 int java_lang_Thread::_priority_offset = 0; | |
760 int java_lang_Thread::_eetop_offset = 0; | |
761 int java_lang_Thread::_daemon_offset = 0; | |
762 int java_lang_Thread::_stillborn_offset = 0; | |
763 int java_lang_Thread::_stackSize_offset = 0; | |
764 int java_lang_Thread::_tid_offset = 0; | |
765 int java_lang_Thread::_thread_status_offset = 0; | |
766 int java_lang_Thread::_park_blocker_offset = 0; | |
767 int java_lang_Thread::_park_event_offset = 0 ; | |
768 | |
769 | |
770 void java_lang_Thread::compute_offsets() { | |
771 assert(_group_offset == 0, "offsets should be initialized only once"); | |
772 | |
1142 | 773 klassOop k = SystemDictionary::Thread_klass(); |
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774 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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775 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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776 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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777 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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778 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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779 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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780 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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781 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 782 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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783 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 784 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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785 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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786 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 787 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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788 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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789 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 790 vmSymbols::long_signature()); |
791 } | |
792 | |
793 | |
794 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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795 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 796 } |
797 | |
798 | |
799 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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800 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 801 } |
802 | |
803 | |
804 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
805 oop name = java_thread->obj_field(_name_offset); | |
806 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
807 return typeArrayOop(name); | |
808 } | |
809 | |
810 | |
811 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
812 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
813 java_thread->obj_field_put(_name_offset, name); | |
814 } | |
815 | |
816 | |
817 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
818 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
819 } | |
820 | |
821 | |
822 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
823 java_thread->int_field_put(_priority_offset, priority); | |
824 } | |
825 | |
826 | |
827 oop java_lang_Thread::threadGroup(oop java_thread) { | |
828 return java_thread->obj_field(_group_offset); | |
829 } | |
830 | |
831 | |
832 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
833 return java_thread->bool_field(_stillborn_offset) != 0; | |
834 } | |
835 | |
836 | |
837 // We never have reason to turn the stillborn bit off | |
838 void java_lang_Thread::set_stillborn(oop java_thread) { | |
839 java_thread->bool_field_put(_stillborn_offset, true); | |
840 } | |
841 | |
842 | |
843 bool java_lang_Thread::is_alive(oop java_thread) { | |
844 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
845 return (thr != NULL); | |
846 } | |
847 | |
848 | |
849 bool java_lang_Thread::is_daemon(oop java_thread) { | |
850 return java_thread->bool_field(_daemon_offset) != 0; | |
851 } | |
852 | |
853 | |
854 void java_lang_Thread::set_daemon(oop java_thread) { | |
855 java_thread->bool_field_put(_daemon_offset, true); | |
856 } | |
857 | |
858 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
859 return java_thread->obj_field(_contextClassLoader_offset); | |
860 } | |
861 | |
862 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
863 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
864 } | |
865 | |
866 | |
867 jlong java_lang_Thread::stackSize(oop java_thread) { | |
868 // The stackSize field is only present starting in 1.4 | |
869 if (_stackSize_offset > 0) { | |
870 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
871 return java_thread->long_field(_stackSize_offset); | |
872 } else { | |
873 return 0; | |
874 } | |
875 } | |
876 | |
877 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
878 void java_lang_Thread::set_thread_status(oop java_thread, | |
879 java_lang_Thread::ThreadStatus status) { | |
880 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
881 // The threadStatus is only present starting in 1.5 | |
882 if (_thread_status_offset > 0) { | |
883 java_thread->int_field_put(_thread_status_offset, status); | |
884 } | |
885 } | |
886 | |
887 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
888 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
889 assert(Thread::current()->is_VM_thread() || | |
890 JavaThread::current()->thread_state() == _thread_in_vm, | |
891 "Java Thread is not running in vm"); | |
892 // The threadStatus is only present starting in 1.5 | |
893 if (_thread_status_offset > 0) { | |
894 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
895 } else { | |
896 // All we can easily figure out is if it is alive, but that is | |
897 // enough info for a valid unknown status. | |
898 // These aren't restricted to valid set ThreadStatus values, so | |
899 // use JVMTI values and cast. | |
900 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
901 if (thr == NULL) { | |
902 // the thread hasn't run yet or is in the process of exiting | |
903 return NEW; | |
904 } | |
905 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
906 } | |
907 } | |
908 | |
909 | |
910 jlong java_lang_Thread::thread_id(oop java_thread) { | |
911 // The thread ID field is only present starting in 1.5 | |
912 if (_tid_offset > 0) { | |
913 return java_thread->long_field(_tid_offset); | |
914 } else { | |
915 return 0; | |
916 } | |
917 } | |
918 | |
919 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 920 assert(JDK_Version::current().supports_thread_park_blocker() && |
921 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 922 |
923 if (_park_blocker_offset > 0) { | |
924 return java_thread->obj_field(_park_blocker_offset); | |
925 } | |
926 | |
927 return NULL; | |
928 } | |
929 | |
930 jlong java_lang_Thread::park_event(oop java_thread) { | |
931 if (_park_event_offset > 0) { | |
932 return java_thread->long_field(_park_event_offset); | |
933 } | |
934 return 0; | |
935 } | |
936 | |
937 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
938 if (_park_event_offset > 0) { | |
939 java_thread->long_field_put(_park_event_offset, ptr); | |
940 return true; | |
941 } | |
942 return false; | |
943 } | |
944 | |
945 | |
946 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
947 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
948 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
949 switch (status) { | |
950 case NEW : return "NEW"; | |
951 case RUNNABLE : return "RUNNABLE"; | |
952 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
953 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
954 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
955 case PARKED : return "WAITING (parking)"; | |
956 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
957 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
958 case TERMINATED : return "TERMINATED"; | |
959 default : return "UNKNOWN"; | |
960 }; | |
961 } | |
962 int java_lang_ThreadGroup::_parent_offset = 0; | |
963 int java_lang_ThreadGroup::_name_offset = 0; | |
964 int java_lang_ThreadGroup::_threads_offset = 0; | |
965 int java_lang_ThreadGroup::_groups_offset = 0; | |
966 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
967 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
968 int java_lang_ThreadGroup::_daemon_offset = 0; | |
969 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
970 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
971 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
972 | |
973 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
974 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
975 return java_thread_group->obj_field(_parent_offset); | |
976 } | |
977 | |
978 // ("name as oop" accessor is not necessary) | |
979 | |
980 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
981 oop name = java_thread_group->obj_field(_name_offset); | |
982 // ThreadGroup.name can be null | |
983 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
984 } | |
985 | |
986 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
987 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
988 return java_thread_group->int_field(_nthreads_offset); | |
989 } | |
990 | |
991 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
992 oop threads = java_thread_group->obj_field(_threads_offset); | |
993 assert(threads != NULL, "threadgroups should have threads"); | |
994 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
995 return objArrayOop(threads); | |
996 } | |
997 | |
998 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
999 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1000 return java_thread_group->int_field(_ngroups_offset); | |
1001 } | |
1002 | |
1003 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
1004 oop groups = java_thread_group->obj_field(_groups_offset); | |
1005 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
1006 return objArrayOop(groups); | |
1007 } | |
1008 | |
1009 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
1010 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1011 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
1012 } | |
1013 | |
1014 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
1015 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1016 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
1017 } | |
1018 | |
1019 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
1020 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1021 return java_thread_group->bool_field(_daemon_offset) != 0; | |
1022 } | |
1023 | |
1024 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1025 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1026 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1027 } | |
1028 | |
1029 void java_lang_ThreadGroup::compute_offsets() { | |
1030 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1031 | |
1142 | 1032 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 1033 |
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1034 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1035 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1036 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1037 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1038 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1039 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1040 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1041 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1042 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1043 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1044 } |
1045 | |
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1046 oop java_lang_Throwable::unassigned_stacktrace() { |
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1047 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1048 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1049 if (UseCompressedOops) { |
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1050 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1051 } else { |
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1052 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1053 } |
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1054 } |
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1055 |
0 | 1056 oop java_lang_Throwable::backtrace(oop throwable) { |
1057 return throwable->obj_field_acquire(backtrace_offset); | |
1058 } | |
1059 | |
1060 | |
1061 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1062 throwable->release_obj_field_put(backtrace_offset, value); | |
1063 } | |
1064 | |
1065 | |
1066 oop java_lang_Throwable::message(oop throwable) { | |
1067 return throwable->obj_field(detailMessage_offset); | |
1068 } | |
1069 | |
1070 | |
1071 oop java_lang_Throwable::message(Handle throwable) { | |
1072 return throwable->obj_field(detailMessage_offset); | |
1073 } | |
1074 | |
1075 | |
1076 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1077 throwable->obj_field_put(detailMessage_offset, value); | |
1078 } | |
1079 | |
1080 | |
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1081 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1082 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1083 } |
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1084 |
0 | 1085 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1086 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1087 set_stacktrace(throwable, NULL); |
0 | 1088 } |
1089 | |
1090 | |
1091 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1092 ResourceMark rm; | |
1093 klassOop k = throwable->klass(); | |
1094 assert(k != NULL, "just checking"); | |
1095 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1096 oop msg = message(throwable); | |
1097 if (msg != NULL) { | |
1098 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1099 } | |
1100 } | |
1101 | |
1102 | |
1103 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1104 ResourceMark rm; | |
1105 klassOop k = throwable->klass(); | |
1106 assert(k != NULL, "just checking"); | |
1107 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1108 oop msg = message(throwable); | |
1109 if (msg != NULL) { | |
1110 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1111 } | |
1112 } | |
1113 | |
1114 // Print stack trace element to resource allocated buffer | |
1115 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
1116 // Get strings and string lengths | |
1117 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
1118 const char* klass_name = klass->external_name(); | |
1119 int buf_len = (int)strlen(klass_name); | |
1120 char* source_file_name; | |
1121 if (klass->source_file_name() == NULL) { | |
1122 source_file_name = NULL; | |
1123 } else { | |
1124 source_file_name = klass->source_file_name()->as_C_string(); | |
1125 buf_len += (int)strlen(source_file_name); | |
1126 } | |
1127 char* method_name = method->name()->as_C_string(); | |
1128 buf_len += (int)strlen(method_name); | |
1129 | |
1130 // Allocate temporary buffer with extra space for formatting and line number | |
1131 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1132 | |
1133 // Print stack trace line in buffer | |
1134 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1135 if (method->is_native()) { | |
1136 strcat(buf, "(Native Method)"); | |
1137 } else { | |
1138 int line_number = method->line_number_from_bci(bci); | |
1139 if (source_file_name != NULL && (line_number != -1)) { | |
1140 // Sourcename and linenumber | |
1141 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1142 } else if (source_file_name != NULL) { | |
1143 // Just sourcename | |
1144 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1145 } else { | |
1146 // Neither soucename and linenumber | |
1147 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1148 } | |
1149 nmethod* nm = method->code(); | |
1150 if (WizardMode && nm != NULL) { | |
3960 | 1151 sprintf(buf + (int)strlen(buf), "(nmethod " INTPTR_FORMAT ")", (intptr_t)nm); |
0 | 1152 } |
1153 } | |
1154 | |
1155 return buf; | |
1156 } | |
1157 | |
1158 | |
1159 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1160 ResourceMark rm; | |
1161 char* buf = print_stack_element_to_buffer(method, bci); | |
1162 print_to_stream(stream, buf); | |
1163 } | |
1164 | |
1165 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1166 ResourceMark rm; | |
1167 char* buf = print_stack_element_to_buffer(method, bci); | |
1168 st->print_cr("%s", buf); | |
1169 } | |
1170 | |
1171 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1172 if (stream.is_null()) { | |
1173 tty->print_cr("%s", str); | |
1174 } else { | |
1175 EXCEPTION_MARK; | |
1176 JavaValue result(T_VOID); | |
1177 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1178 if (!HAS_PENDING_EXCEPTION) { | |
1179 JavaCalls::call_virtual(&result, | |
1180 stream, | |
1181 KlassHandle(THREAD, stream->klass()), | |
2177
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diff
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|
1182 vmSymbols::println_name(), |
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1183 vmSymbols::char_array_void_signature(), |
0 | 1184 arg, |
1185 THREAD); | |
1186 } | |
1187 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1188 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1189 } | |
1190 | |
1191 } | |
1192 | |
1193 | |
1194 const char* java_lang_Throwable::no_stack_trace_message() { | |
1195 return "\t<<no stack trace available>>"; | |
1196 } | |
1197 | |
1198 | |
1199 // Currently used only for exceptions occurring during startup | |
1200 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1201 Thread *THREAD = Thread::current(); | |
1202 Handle h_throwable(THREAD, throwable); | |
1203 while (h_throwable.not_null()) { | |
1204 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1205 if (result.is_null()) { | |
1206 st->print_cr(no_stack_trace_message()); | |
1207 return; | |
1208 } | |
1209 | |
1210 while (result.not_null()) { | |
1211 objArrayHandle methods (THREAD, | |
1212 objArrayOop(result->obj_at(trace_methods_offset))); | |
1213 typeArrayHandle bcis (THREAD, | |
1214 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1215 | |
1216 if (methods.is_null() || bcis.is_null()) { | |
1217 st->print_cr(no_stack_trace_message()); | |
1218 return; | |
1219 } | |
1220 | |
1221 int length = methods()->length(); | |
1222 for (int index = 0; index < length; index++) { | |
1223 methodOop method = methodOop(methods()->obj_at(index)); | |
1224 if (method == NULL) goto handle_cause; | |
1225 int bci = bcis->ushort_at(index); | |
1226 print_stack_element(st, method, bci); | |
1227 } | |
1228 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1229 } | |
1230 handle_cause: | |
1231 { | |
1232 EXCEPTION_MARK; | |
1233 JavaValue result(T_OBJECT); | |
1234 JavaCalls::call_virtual(&result, | |
1235 h_throwable, | |
1236 KlassHandle(THREAD, h_throwable->klass()), | |
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1237 vmSymbols::getCause_name(), |
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1238 vmSymbols::void_throwable_signature(), |
0 | 1239 THREAD); |
1240 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1241 if (HAS_PENDING_EXCEPTION) { | |
1242 CLEAR_PENDING_EXCEPTION; | |
1243 h_throwable = Handle(); | |
1244 } else { | |
1245 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1246 if (h_throwable.not_null()) { | |
1247 st->print("Caused by: "); | |
1248 print(h_throwable, st); | |
1249 st->cr(); | |
1250 } | |
1251 } | |
1252 } | |
1253 } | |
1254 } | |
1255 | |
1256 | |
1257 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1258 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1259 Thread *thread = Thread::current(); | |
1260 Handle stream(thread, print_stream); | |
1261 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1262 if (result.is_null()) { | |
1263 print_to_stream(stream, no_stack_trace_message()); | |
1264 return; | |
1265 } | |
1266 | |
1267 while (result.not_null()) { | |
1268 objArrayHandle methods (thread, | |
1269 objArrayOop(result->obj_at(trace_methods_offset))); | |
1270 typeArrayHandle bcis (thread, | |
1271 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1272 | |
1273 if (methods.is_null() || bcis.is_null()) { | |
1274 print_to_stream(stream, no_stack_trace_message()); | |
1275 return; | |
1276 } | |
1277 | |
1278 int length = methods()->length(); | |
1279 for (int index = 0; index < length; index++) { | |
1280 methodOop method = methodOop(methods()->obj_at(index)); | |
1281 if (method == NULL) return; | |
1282 int bci = bcis->ushort_at(index); | |
1283 print_stack_element(stream, method, bci); | |
1284 } | |
1285 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1286 } | |
1287 } | |
1288 | |
1289 // This class provides a simple wrapper over the internal structure of | |
1290 // exception backtrace to insulate users of the backtrace from needing | |
1291 // to know what it looks like. | |
1292 class BacktraceBuilder: public StackObj { | |
1293 private: | |
1294 Handle _backtrace; | |
1295 objArrayOop _head; | |
1296 objArrayOop _methods; | |
1297 typeArrayOop _bcis; | |
1298 int _index; | |
1299 No_Safepoint_Verifier _nsv; | |
1300 | |
1301 public: | |
1302 | |
1303 enum { | |
1304 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1305 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1306 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1307 trace_size = java_lang_Throwable::trace_size, | |
1308 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1309 }; | |
1310 | |
1311 // constructor for new backtrace | |
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1312 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
0 | 1313 expand(CHECK); |
1314 _backtrace = _head; | |
1315 _index = 0; | |
1316 } | |
1317 | |
1318 void expand(TRAPS) { | |
1319 objArrayHandle old_head(THREAD, _head); | |
1320 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1321 | |
1322 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1323 objArrayHandle new_head(THREAD, head); | |
1324 | |
1325 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1326 objArrayHandle new_methods(THREAD, methods); | |
1327 | |
1328 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1329 typeArrayHandle new_bcis(THREAD, bcis); | |
1330 | |
1331 if (!old_head.is_null()) { | |
1332 old_head->obj_at_put(trace_next_offset, new_head()); | |
1333 } | |
1334 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1335 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1336 | |
1337 _head = new_head(); | |
1338 _methods = new_methods(); | |
1339 _bcis = new_bcis(); | |
1340 _index = 0; | |
1341 } | |
1342 | |
1343 oop backtrace() { | |
1344 return _backtrace(); | |
1345 } | |
1346 | |
1347 inline void push(methodOop method, short bci, TRAPS) { | |
1348 if (_index >= trace_chunk_size) { | |
1349 methodHandle mhandle(THREAD, method); | |
1350 expand(CHECK); | |
1351 method = mhandle(); | |
1352 } | |
1353 | |
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1354 _methods->obj_at_put(_index, method); |
0 | 1355 _bcis->ushort_at_put(_index, bci); |
1356 _index++; | |
1357 } | |
1358 | |
1359 methodOop current_method() { | |
1360 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1361 return methodOop(_methods->obj_at(_index)); | |
1362 } | |
1363 | |
1364 jushort current_bci() { | |
1365 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1366 return _bcis->ushort_at(_index); | |
1367 } | |
1368 }; | |
1369 | |
1370 | |
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1371 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1372 if (!StackTraceInThrowable) return; |
1373 ResourceMark rm(THREAD); | |
1374 | |
1375 // Start out by clearing the backtrace for this object, in case the VM | |
1376 // runs out of memory while allocating the stack trace | |
1377 set_backtrace(throwable(), NULL); | |
1378 if (JDK_Version::is_gte_jdk14x_version()) { | |
1379 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1380 // refilling occurs | |
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1381 // This is unnecessary in 1.7+ but harmless |
0 | 1382 clear_stacktrace(throwable()); |
1383 } | |
1384 | |
1385 int max_depth = MaxJavaStackTraceDepth; | |
1386 JavaThread* thread = (JavaThread*)THREAD; | |
1387 BacktraceBuilder bt(CHECK); | |
1388 | |
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1389 // If there is no Java frame just return the method that was being called |
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1390 // with bci 0 |
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1391 if (!thread->has_last_Java_frame()) { |
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1392 if (max_depth >= 1 && method() != NULL) { |
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1393 bt.push(method(), 0, CHECK); |
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1394 set_backtrace(throwable(), bt.backtrace()); |
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1395 } |
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1396 return; |
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|
1397 } |
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1398 |
0 | 1399 // Instead of using vframe directly, this version of fill_in_stack_trace |
1400 // basically handles everything by hand. This significantly improved the | |
1401 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1402 // See bug 6333838 for more details. | |
1403 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1404 // trace as utilizing vframe. | |
1405 #ifdef ASSERT | |
1406 vframeStream st(thread); | |
1407 methodHandle st_method(THREAD, st.method()); | |
1408 #endif | |
1409 int total_count = 0; | |
1410 RegisterMap map(thread, false); | |
1411 int decode_offset = 0; | |
1412 nmethod* nm = NULL; | |
1413 bool skip_fillInStackTrace_check = false; | |
1414 bool skip_throwableInit_check = false; | |
1415 | |
1416 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1417 methodOop method = NULL; | |
1418 int bci = 0; | |
1419 | |
1420 // Compiled java method case. | |
1421 if (decode_offset != 0) { | |
1422 DebugInfoReadStream stream(nm, decode_offset); | |
1423 decode_offset = stream.read_int(); | |
1424 method = (methodOop)nm->oop_at(stream.read_int()); | |
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1425 bci = stream.read_bci(); |
0 | 1426 } else { |
1427 if (fr.is_first_frame()) break; | |
1428 address pc = fr.pc(); | |
1429 if (fr.is_interpreted_frame()) { | |
1430 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1431 method = fr.interpreter_frame_method(); | |
1432 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1433 fr = fr.sender(&map); | |
1434 } else { | |
1435 CodeBlob* cb = fr.cb(); | |
1436 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1437 // but non nmethod | |
1438 fr = fr.sender(&map); | |
1439 if (cb == NULL || !cb->is_nmethod()) { | |
1440 continue; | |
1441 } | |
1442 nm = (nmethod*)cb; | |
1443 if (nm->method()->is_native()) { | |
1444 method = nm->method(); | |
1445 bci = 0; | |
1446 } else { | |
1447 PcDesc* pd = nm->pc_desc_at(pc); | |
1448 decode_offset = pd->scope_decode_offset(); | |
1449 // if decode_offset is not equal to 0, it will execute the | |
1450 // "compiled java method case" at the beginning of the loop. | |
1451 continue; | |
1452 } | |
1453 } | |
1454 } | |
1455 #ifdef ASSERT | |
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1456 assert(st_method() == method && st.bci() == bci, |
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1457 "Wrong stack trace"); |
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|
1458 st.next(); |
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1459 // vframeStream::method isn't GC-safe so store off a copy |
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1460 // of the methodOop in case we GC. |
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1461 if (!st.at_end()) { |
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1462 st_method = st.method(); |
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1463 } |
0 | 1464 #endif |
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1465 |
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1466 // the format of the stacktrace will be: |
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1467 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1468 // - 0 or more <init> methods for the exception class (skipped) |
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1469 // - rest of the stack |
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1470 |
0 | 1471 if (!skip_fillInStackTrace_check) { |
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1472 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1473 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1474 throwable->is_a(method->method_holder())) { |
0 | 1475 continue; |
1476 } | |
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1477 else { |
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1478 skip_fillInStackTrace_check = true; // gone past them all |
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1479 } |
0 | 1480 } |
1481 if (!skip_throwableInit_check) { | |
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1482 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1483 |
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1484 // skip <init> methods of the exception class and superclasses |
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1485 // This is simlar to classic VM. |
0 | 1486 if (method->name() == vmSymbols::object_initializer_name() && |
1487 throwable->is_a(method->method_holder())) { | |
1488 continue; | |
1489 } else { | |
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1490 // there are none or we've seen them all - either way stop checking |
0 | 1491 skip_throwableInit_check = true; |
1492 } | |
1493 } | |
1494 bt.push(method, bci, CHECK); | |
1495 total_count++; | |
1496 } | |
1497 | |
1498 // Put completed stack trace into throwable object | |
1499 set_backtrace(throwable(), bt.backtrace()); | |
1500 } | |
1501 | |
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1502 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1503 // No-op if stack trace is disabled |
1504 if (!StackTraceInThrowable) { | |
1505 return; | |
1506 } | |
1507 | |
1508 // Disable stack traces for some preallocated out of memory errors | |
1509 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1510 return; | |
1511 } | |
1512 | |
1513 PRESERVE_EXCEPTION_MARK; | |
1514 | |
1515 JavaThread* thread = JavaThread::active(); | |
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1516 fill_in_stack_trace(throwable, method, thread); |
0 | 1517 // ignore exceptions thrown during stack trace filling |
1518 CLEAR_PENDING_EXCEPTION; | |
1519 } | |
1520 | |
1521 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1522 // Allocate stack trace - backtrace is created but not filled in | |
1523 | |
1524 // No-op if stack trace is disabled | |
1525 if (!StackTraceInThrowable) return; | |
1526 | |
1527 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1528 objArrayHandle backtrace (THREAD, h_oop); | |
1529 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1530 objArrayHandle methods (THREAD, m_oop); | |
1531 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1532 typeArrayHandle bcis(THREAD, b); | |
1533 | |
1534 // backtrace has space for one chunk (next is NULL) | |
1535 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1536 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1537 set_backtrace(throwable(), backtrace()); | |
1538 } | |
1539 | |
1540 | |
1541 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1542 // Fill in stack trace into preallocated backtrace (no GC) | |
1543 | |
1544 // No-op if stack trace is disabled | |
1545 if (!StackTraceInThrowable) return; | |
1546 | |
1142 | 1547 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1548 |
1549 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1550 assert(backtrace != NULL, "backtrace not preallocated"); | |
1551 | |
1552 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1553 objArrayOop methods = objArrayOop(m); | |
1554 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1555 | |
1556 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1557 typeArrayOop bcis = typeArrayOop(b); | |
1558 assert(bcis != NULL, "bci array not preallocated"); | |
1559 | |
1560 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1561 | |
1562 JavaThread* thread = JavaThread::current(); | |
1563 ResourceMark rm(thread); | |
1564 vframeStream st(thread); | |
1565 | |
1566 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1567 // methods as preallocated errors aren't created by "java" code. | |
1568 | |
1569 // fill in as much stack trace as possible | |
1570 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1571 int chunk_count = 0; | |
1572 | |
1573 for (;!st.at_end(); st.next()) { | |
1574 // add element | |
1575 bcis->ushort_at_put(chunk_count, st.bci()); | |
1576 methods->obj_at_put(chunk_count, st.method()); | |
1577 | |
1578 chunk_count++; | |
1579 | |
1580 // Bail-out for deep stacks | |
1581 if (chunk_count >= max_chunks) break; | |
1582 } | |
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1583 |
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1584 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1585 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1586 // can be removed in a JDK using this JVM version |
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1587 if (JDK_Version::is_gte_jdk17x_version()) { |
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1588 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1589 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1590 } |
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1591 |
0 | 1592 } |
1593 | |
1594 | |
1595 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1596 if (throwable == NULL) { | |
1597 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1598 } | |
1599 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1600 int depth = 0; | |
1601 if (chunk != NULL) { | |
1602 // Iterate over chunks and count full ones | |
1603 while (true) { | |
1604 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1605 if (next == NULL) break; | |
1606 depth += trace_chunk_size; | |
1607 chunk = next; | |
1608 } | |
1609 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1610 // Count element in remaining partial chunk | |
1611 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1612 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1613 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1614 for (int i = 0; i < methods->length(); i++) { | |
1615 if (methods->obj_at(i) == NULL) break; | |
1616 depth++; | |
1617 } | |
1618 } | |
1619 return depth; | |
1620 } | |
1621 | |
1622 | |
1623 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1624 if (throwable == NULL) { | |
1625 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1626 } | |
1627 if (index < 0) { | |
1628 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1629 } | |
1630 // Compute how many chunks to skip and index into actual chunk | |
1631 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1632 int skip_chunks = index / trace_chunk_size; | |
1633 int chunk_index = index % trace_chunk_size; | |
1634 while (chunk != NULL && skip_chunks > 0) { | |
1635 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1636 skip_chunks--; | |
1637 } | |
1638 if (chunk == NULL) { | |
1639 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1640 } | |
1641 // Get method,bci from chunk | |
1642 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1643 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1644 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1645 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1646 int bci = bcis->ushort_at(chunk_index); | |
1647 // Chunk can be partial full | |
1648 if (method.is_null()) { | |
1649 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1650 } | |
1651 | |
1652 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1653 return element; | |
1654 } | |
1655 | |
1656 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1657 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1658 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1659 | |
1660 // Allocate java.lang.StackTraceElement instance | |
1142 | 1661 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1662 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1663 instanceKlassHandle ik (THREAD, k); |
1664 if (ik->should_be_initialized()) { | |
1665 ik->initialize(CHECK_0); | |
1666 } | |
1667 | |
1668 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1669 // Fill in class name | |
1670 ResourceMark rm(THREAD); | |
1671 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1672 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1673 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1674 // Fill in method name | |
1675 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1676 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1677 // Fill in source file name | |
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1678 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1679 oop filename = StringTable::intern(source, CHECK_0); |
1680 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1681 // File in source line number | |
1682 int line_number; | |
1683 if (method->is_native()) { | |
1684 // Negative value different from -1 below, enabling Java code in | |
1685 // class java.lang.StackTraceElement to distinguish "native" from | |
1686 // "no LineNumberTable". | |
1687 line_number = -2; | |
1688 } else { | |
1689 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1690 line_number = method->line_number_from_bci(bci); | |
1691 } | |
1692 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1693 | |
1694 return element(); | |
1695 } | |
1696 | |
1697 | |
1698 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1699 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1700 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1701 } |
1702 | |
1703 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1704 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1705 return (jboolean) reflect->bool_field(override_offset); | |
1706 } | |
1707 | |
1708 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1709 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1710 reflect->bool_field_put(override_offset, (int) value); | |
1711 } | |
1712 | |
1713 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1714 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1715 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1716 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1717 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1718 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1719 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1720 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1721 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1722 // The generic signature and annotations fields are only present in 1.5 |
1723 signature_offset = -1; | |
1724 annotations_offset = -1; | |
1725 parameter_annotations_offset = -1; | |
1726 annotation_default_offset = -1; | |
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1727 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1728 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1729 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1730 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1731 } |
1732 | |
1733 Handle java_lang_reflect_Method::create(TRAPS) { | |
1734 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1735 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1736 // This class is eagerly initialized during VM initialization, since we keep a refence |
1737 // to one of the methods | |
1738 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1739 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1740 } | |
1741 | |
1742 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1743 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1744 return reflect->obj_field(clazz_offset); | |
1745 } | |
1746 | |
1747 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1748 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1749 reflect->obj_field_put(clazz_offset, value); | |
1750 } | |
1751 | |
1752 int java_lang_reflect_Method::slot(oop reflect) { | |
1753 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1754 return reflect->int_field(slot_offset); | |
1755 } | |
1756 | |
1757 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1758 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1759 reflect->int_field_put(slot_offset, value); | |
1760 } | |
1761 | |
1762 oop java_lang_reflect_Method::name(oop method) { | |
1763 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1764 return method->obj_field(name_offset); | |
1765 } | |
1766 | |
1767 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1768 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1769 method->obj_field_put(name_offset, value); | |
1770 } | |
1771 | |
1772 oop java_lang_reflect_Method::return_type(oop method) { | |
1773 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1774 return method->obj_field(returnType_offset); | |
1775 } | |
1776 | |
1777 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1778 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1779 method->obj_field_put(returnType_offset, value); | |
1780 } | |
1781 | |
1782 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1783 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1784 return method->obj_field(parameterTypes_offset); | |
1785 } | |
1786 | |
1787 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1788 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1789 method->obj_field_put(parameterTypes_offset, value); | |
1790 } | |
1791 | |
1792 oop java_lang_reflect_Method::exception_types(oop method) { | |
1793 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1794 return method->obj_field(exceptionTypes_offset); | |
1795 } | |
1796 | |
1797 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1798 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1799 method->obj_field_put(exceptionTypes_offset, value); | |
1800 } | |
1801 | |
1802 int java_lang_reflect_Method::modifiers(oop method) { | |
1803 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1804 return method->int_field(modifiers_offset); | |
1805 } | |
1806 | |
1807 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1808 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1809 method->int_field_put(modifiers_offset, value); | |
1810 } | |
1811 | |
1812 bool java_lang_reflect_Method::has_signature_field() { | |
1813 return (signature_offset >= 0); | |
1814 } | |
1815 | |
1816 oop java_lang_reflect_Method::signature(oop method) { | |
1817 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1818 assert(has_signature_field(), "signature field must be present"); | |
1819 return method->obj_field(signature_offset); | |
1820 } | |
1821 | |
1822 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1823 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1824 assert(has_signature_field(), "signature field must be present"); | |
1825 method->obj_field_put(signature_offset, value); | |
1826 } | |
1827 | |
1828 bool java_lang_reflect_Method::has_annotations_field() { | |
1829 return (annotations_offset >= 0); | |
1830 } | |
1831 | |
1832 oop java_lang_reflect_Method::annotations(oop method) { | |
1833 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1834 assert(has_annotations_field(), "annotations field must be present"); | |
1835 return method->obj_field(annotations_offset); | |
1836 } | |
1837 | |
1838 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1839 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1840 assert(has_annotations_field(), "annotations field must be present"); | |
1841 method->obj_field_put(annotations_offset, value); | |
1842 } | |
1843 | |
1844 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1845 return (parameter_annotations_offset >= 0); | |
1846 } | |
1847 | |
1848 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1849 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1850 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1851 return method->obj_field(parameter_annotations_offset); | |
1852 } | |
1853 | |
1854 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1855 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1856 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1857 method->obj_field_put(parameter_annotations_offset, value); | |
1858 } | |
1859 | |
1860 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1861 return (annotation_default_offset >= 0); | |
1862 } | |
1863 | |
1864 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1865 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1866 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1867 return method->obj_field(annotation_default_offset); | |
1868 } | |
1869 | |
1870 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1871 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1872 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1873 method->obj_field_put(annotation_default_offset, value); | |
1874 } | |
1875 | |
1876 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1877 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1878 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1879 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1880 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1881 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1882 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1883 // The generic signature and annotations fields are only present in 1.5 |
1884 signature_offset = -1; | |
1885 annotations_offset = -1; | |
1886 parameter_annotations_offset = -1; | |
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1887 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1888 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1889 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1890 } |
1891 | |
1892 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1893 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1894 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1895 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1896 instanceKlassHandle klass (THREAD, k); | |
1897 // Ensure it is initialized | |
1898 klass->initialize(CHECK_NH); | |
1899 return klass->allocate_instance_handle(CHECK_NH); | |
1900 } | |
1901 | |
1902 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1903 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1904 return reflect->obj_field(clazz_offset); | |
1905 } | |
1906 | |
1907 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1908 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1909 reflect->obj_field_put(clazz_offset, value); | |
1910 } | |
1911 | |
1912 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1913 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1914 return constructor->obj_field(parameterTypes_offset); | |
1915 } | |
1916 | |
1917 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1918 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1919 constructor->obj_field_put(parameterTypes_offset, value); | |
1920 } | |
1921 | |
1922 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1923 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1924 return constructor->obj_field(exceptionTypes_offset); | |
1925 } | |
1926 | |
1927 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1928 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1929 constructor->obj_field_put(exceptionTypes_offset, value); | |
1930 } | |
1931 | |
1932 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1933 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1934 return reflect->int_field(slot_offset); | |
1935 } | |
1936 | |
1937 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1938 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1939 reflect->int_field_put(slot_offset, value); | |
1940 } | |
1941 | |
1942 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1943 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1944 return constructor->int_field(modifiers_offset); | |
1945 } | |
1946 | |
1947 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1948 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1949 constructor->int_field_put(modifiers_offset, value); | |
1950 } | |
1951 | |
1952 bool java_lang_reflect_Constructor::has_signature_field() { | |
1953 return (signature_offset >= 0); | |
1954 } | |
1955 | |
1956 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1957 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1958 assert(has_signature_field(), "signature field must be present"); | |
1959 return constructor->obj_field(signature_offset); | |
1960 } | |
1961 | |
1962 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1963 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1964 assert(has_signature_field(), "signature field must be present"); | |
1965 constructor->obj_field_put(signature_offset, value); | |
1966 } | |
1967 | |
1968 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1969 return (annotations_offset >= 0); | |
1970 } | |
1971 | |
1972 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1973 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1974 assert(has_annotations_field(), "annotations field must be present"); | |
1975 return constructor->obj_field(annotations_offset); | |
1976 } | |
1977 | |
1978 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1979 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1980 assert(has_annotations_field(), "annotations field must be present"); | |
1981 constructor->obj_field_put(annotations_offset, value); | |
1982 } | |
1983 | |
1984 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1985 return (parameter_annotations_offset >= 0); | |
1986 } | |
1987 | |
1988 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1989 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1990 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1991 return method->obj_field(parameter_annotations_offset); | |
1992 } | |
1993 | |
1994 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1995 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1996 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1997 method->obj_field_put(parameter_annotations_offset, value); | |
1998 } | |
1999 | |
2000 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 2001 klassOop k = SystemDictionary::reflect_Field_klass(); |
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2002 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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2003 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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2004 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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2005 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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2006 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 2007 // The generic signature and annotations fields are only present in 1.5 |
2008 signature_offset = -1; | |
2009 annotations_offset = -1; | |
132
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2010 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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2011 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 2012 } |
2013 | |
2014 Handle java_lang_reflect_Field::create(TRAPS) { | |
2015 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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2016 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 2017 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
2018 instanceKlassHandle klass (THREAD, k); | |
2019 // Ensure it is initialized | |
2020 klass->initialize(CHECK_NH); | |
2021 return klass->allocate_instance_handle(CHECK_NH); | |
2022 } | |
2023 | |
2024 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2025 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2026 return reflect->obj_field(clazz_offset); | |
2027 } | |
2028 | |
2029 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2030 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2031 reflect->obj_field_put(clazz_offset, value); | |
2032 } | |
2033 | |
2034 oop java_lang_reflect_Field::name(oop field) { | |
2035 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2036 return field->obj_field(name_offset); | |
2037 } | |
2038 | |
2039 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2040 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2041 field->obj_field_put(name_offset, value); | |
2042 } | |
2043 | |
2044 oop java_lang_reflect_Field::type(oop field) { | |
2045 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2046 return field->obj_field(type_offset); | |
2047 } | |
2048 | |
2049 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2050 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2051 field->obj_field_put(type_offset, value); | |
2052 } | |
2053 | |
2054 int java_lang_reflect_Field::slot(oop reflect) { | |
2055 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2056 return reflect->int_field(slot_offset); | |
2057 } | |
2058 | |
2059 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2060 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2061 reflect->int_field_put(slot_offset, value); | |
2062 } | |
2063 | |
2064 int java_lang_reflect_Field::modifiers(oop field) { | |
2065 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2066 return field->int_field(modifiers_offset); | |
2067 } | |
2068 | |
2069 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2070 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2071 field->int_field_put(modifiers_offset, value); | |
2072 } | |
2073 | |
2074 bool java_lang_reflect_Field::has_signature_field() { | |
2075 return (signature_offset >= 0); | |
2076 } | |
2077 | |
2078 oop java_lang_reflect_Field::signature(oop field) { | |
2079 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2080 assert(has_signature_field(), "signature field must be present"); | |
2081 return field->obj_field(signature_offset); | |
2082 } | |
2083 | |
2084 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2085 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2086 assert(has_signature_field(), "signature field must be present"); | |
2087 field->obj_field_put(signature_offset, value); | |
2088 } | |
2089 | |
2090 bool java_lang_reflect_Field::has_annotations_field() { | |
2091 return (annotations_offset >= 0); | |
2092 } | |
2093 | |
2094 oop java_lang_reflect_Field::annotations(oop field) { | |
2095 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2096 assert(has_annotations_field(), "annotations field must be present"); | |
2097 return field->obj_field(annotations_offset); | |
2098 } | |
2099 | |
2100 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2101 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2102 assert(has_annotations_field(), "annotations field must be present"); | |
2103 field->obj_field_put(annotations_offset, value); | |
2104 } | |
2105 | |
2106 | |
2107 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 2108 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2109 // This null test can be removed post beta |
2110 if (k != NULL) { | |
132
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2111 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 2112 } |
2113 } | |
2114 | |
2115 | |
2116 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2117 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 2118 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2119 instanceKlassHandle klass (THREAD, k); |
2120 // Ensure it is initialized | |
2121 klass->initialize(CHECK_NH); | |
2122 return klass->allocate_instance_handle(CHECK_NH); | |
2123 } | |
2124 | |
2125 | |
2126 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
2127 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2128 return reflect->obj_field(_cp_oop_offset); | |
2129 } | |
2130 | |
2131 | |
2132 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2133 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2134 reflect->obj_field_put(_cp_oop_offset, value); | |
2135 } | |
2136 | |
2137 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2138 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2139 // This null test can be removed post beta |
2140 if (k != NULL) { | |
132
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2141 compute_offset(_base_offset, k, |
0 | 2142 vmSymbols::base_name(), vmSymbols::object_signature()); |
2143 } | |
2144 } | |
2145 | |
132
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2146 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2147 klassOop k = SystemDictionary::box_klass(type); |
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2148 if (k == NULL) return NULL; |
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2149 instanceKlassHandle h (THREAD, k); |
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2150 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2151 return h->allocate_instance(THREAD); |
0 | 2152 } |
2153 | |
2154 | |
2155 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2156 oop box = initialize_and_allocate(type, CHECK_0); |
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2157 if (box == NULL) return NULL; |
0 | 2158 switch (type) { |
2159 case T_BOOLEAN: | |
2160 box->bool_field_put(value_offset, value->z); | |
2161 break; | |
2162 case T_CHAR: | |
2163 box->char_field_put(value_offset, value->c); | |
2164 break; | |
2165 case T_FLOAT: | |
2166 box->float_field_put(value_offset, value->f); | |
2167 break; | |
2168 case T_DOUBLE: | |
165
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2169 box->double_field_put(long_value_offset, value->d); |
0 | 2170 break; |
2171 case T_BYTE: | |
2172 box->byte_field_put(value_offset, value->b); | |
2173 break; | |
2174 case T_SHORT: | |
2175 box->short_field_put(value_offset, value->s); | |
2176 break; | |
2177 case T_INT: | |
2178 box->int_field_put(value_offset, value->i); | |
2179 break; | |
2180 case T_LONG: | |
165
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2181 box->long_field_put(long_value_offset, value->j); |
0 | 2182 break; |
2183 default: | |
2184 return NULL; | |
2185 } | |
2186 return box; | |
2187 } | |
2188 | |
2189 | |
132
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2190 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2191 if (box == NULL) return T_ILLEGAL; |
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2192 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2193 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2194 return T_ILLEGAL; |
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2195 return type; |
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2196 } |
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2197 |
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2198 |
0 | 2199 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2200 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2201 switch (type) { |
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2202 case T_BOOLEAN: |
0 | 2203 value->z = box->bool_field(value_offset); |
132
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2204 break; |
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2205 case T_CHAR: |
0 | 2206 value->c = box->char_field(value_offset); |
132
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2207 break; |
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2208 case T_FLOAT: |
0 | 2209 value->f = box->float_field(value_offset); |
132
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2210 break; |
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2211 case T_DOUBLE: |
165
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2212 value->d = box->double_field(long_value_offset); |
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2213 break; |
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2214 case T_BYTE: |
0 | 2215 value->b = box->byte_field(value_offset); |
132
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2216 break; |
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2217 case T_SHORT: |
0 | 2218 value->s = box->short_field(value_offset); |
132
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2219 break; |
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2220 case T_INT: |
0 | 2221 value->i = box->int_field(value_offset); |
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2222 break; |
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2223 case T_LONG: |
165
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2224 value->j = box->long_field(long_value_offset); |
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2225 break; |
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2226 default: |
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2227 return T_ILLEGAL; |
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2228 } // end switch |
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2229 return type; |
0 | 2230 } |
2231 | |
2232 | |
2233 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
132
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2234 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2235 switch (type) { |
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2236 case T_BOOLEAN: |
0 | 2237 box->bool_field_put(value_offset, value->z); |
132
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2238 break; |
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2239 case T_CHAR: |
0 | 2240 box->char_field_put(value_offset, value->c); |
132
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2241 break; |
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2242 case T_FLOAT: |
0 | 2243 box->float_field_put(value_offset, value->f); |
132
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2244 break; |
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2245 case T_DOUBLE: |
165
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2246 box->double_field_put(long_value_offset, value->d); |
132
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2247 break; |
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2248 case T_BYTE: |
0 | 2249 box->byte_field_put(value_offset, value->b); |
132
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2250 break; |
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|
2251 case T_SHORT: |
0 | 2252 box->short_field_put(value_offset, value->s); |
132
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|
2253 break; |
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|
2254 case T_INT: |
0 | 2255 box->int_field_put(value_offset, value->i); |
132
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diff
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|
2256 break; |
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diff
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|
2257 case T_LONG: |
165
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diff
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|
2258 box->long_field_put(long_value_offset, value->j); |
132
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|
2259 break; |
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diff
changeset
|
2260 default: |
60b728ec77c1
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diff
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|
2261 return T_ILLEGAL; |
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diff
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|
2262 } // end switch |
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|
2263 return type; |
0 | 2264 } |
2265 | |
2266 | |
665
c89f86385056
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|
2267 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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diff
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|
2268 switch (type) { |
c89f86385056
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diff
changeset
|
2269 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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diff
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|
2270 case T_CHAR: st->print("%d", value->c); break; |
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579
diff
changeset
|
2271 case T_BYTE: st->print("%d", value->b); break; |
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diff
changeset
|
2272 case T_SHORT: st->print("%d", value->s); break; |
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diff
changeset
|
2273 case T_INT: st->print("%d", value->i); break; |
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diff
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|
2274 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
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diff
changeset
|
2275 case T_FLOAT: st->print("%f", value->f); break; |
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6814659: separable cleanups and subroutines for 6655638
jrose
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diff
changeset
|
2276 case T_DOUBLE: st->print("%lf", value->d); break; |
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6814659: separable cleanups and subroutines for 6655638
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diff
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|
2277 default: st->print("type %d?", type); break; |
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579
diff
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|
2278 } |
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579
diff
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|
2279 } |
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diff
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|
2280 |
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|
2281 |
0 | 2282 // Support for java_lang_ref_Reference |
113
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diff
changeset
|
2283 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2284 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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|
2285 address addr = ik->static_field_addr(static_lock_offset); |
113
ba764ed4b6f2
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|
2286 if (UseCompressedOops) { |
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|
2287 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
2288 } else { |
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diff
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|
2289 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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|
2290 } |
0 | 2291 } |
2292 | |
113
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diff
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|
2293 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2294 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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|
2295 address addr = ik->static_field_addr(static_pending_offset); |
113
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diff
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|
2296 // XXX This might not be HeapWord aligned, almost rather be char *. |
ba764ed4b6f2
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diff
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|
2297 return (HeapWord*)addr; |
0 | 2298 } |
2299 | |
113
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|
2300 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2301 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
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|
2302 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
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|
2303 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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98
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|
2304 } else { |
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diff
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|
2305 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
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|
2306 } |
0 | 2307 } |
2308 | |
2309 | |
2310 // Support for java_lang_ref_SoftReference | |
2311 | |
2312 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2313 return ref->long_field(timestamp_offset); | |
2314 } | |
2315 | |
2316 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2317 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
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parents:
2357
diff
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|
2318 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
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2357
diff
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|
2319 return *offset; |
0 | 2320 } |
2321 | |
2322 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2323 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
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parents:
2357
diff
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|
2324 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
|
2325 *offset = value; |
0 | 2326 } |
2327 | |
2328 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2329 // 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
|
2330 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2331 int java_lang_invoke_MethodHandle::_type_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2332 int java_lang_invoke_MethodHandle::_vmtarget_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2333 int java_lang_invoke_MethodHandle::_vmentry_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2334 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2335 int java_lang_invoke_MemberName::_clazz_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2336 int java_lang_invoke_MemberName::_name_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2337 int java_lang_invoke_MemberName::_type_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2338 int java_lang_invoke_MemberName::_flags_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2339 int java_lang_invoke_MemberName::_vmtarget_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2340 int java_lang_invoke_MemberName::_vmindex_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2341 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2342 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2343 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2344 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2345 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2346 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2347 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2348 |
3905
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2349 int java_lang_invoke_CountingMethodHandle::_vmcount_offset; |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
parents:
3900
diff
changeset
|
2350 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2351 void java_lang_invoke_MethodHandle::compute_offsets() { |
3938 | 2352 klassOop klass_oop = SystemDictionary::MethodHandle_klass(); |
2353 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
parents:
2177
diff
changeset
|
2354 bool allow_super = false; |
3938 | 2355 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
2356 METHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2357 } |
2358 } | |
2359 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2360 void java_lang_invoke_MemberName::compute_offsets() { |
3938 | 2361 klassOop klass_oop = SystemDictionary::MemberName_klass(); |
2362 if (klass_oop != NULL && EnableInvokeDynamic) { | |
2363 compute_offset(_clazz_offset, klass_oop, vmSymbols::clazz_name(), vmSymbols::class_signature()); | |
2364 compute_offset(_name_offset, klass_oop, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2365 compute_offset(_type_offset, klass_oop, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2366 compute_offset(_flags_offset, klass_oop, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2367 compute_offset(_vmindex_offset, klass_oop, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2368 MEMBERNAME_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); | |
710 | 2369 } |
2370 } | |
2371 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2372 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2373 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2374 if (k != NULL && EnableInvokeDynamic) { |
3938 | 2375 DIRECTMETHODHANDLE_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2376 } |
2377 } | |
2378 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2379 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2380 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
changeset
|
2381 if (k != NULL && EnableInvokeDynamic) { |
710 | 2382 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
2383 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2384 } | |
2385 } | |
2386 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2387 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2388 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2389 if (k != NULL && EnableInvokeDynamic) { |
710 | 2390 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
2391 } | |
2392 } | |
2393 | |
3905
c26de9aef2ed
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3900
diff
changeset
|
2394 void java_lang_invoke_CountingMethodHandle::compute_offsets() { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
changeset
|
2395 klassOop k = SystemDictionary::CountingMethodHandle_klass(); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2396 if (k != NULL && EnableInvokeDynamic) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
changeset
|
2397 compute_offset(_vmcount_offset, k, vmSymbols::vmcount_name(), vmSymbols::int_signature(), true); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
never
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3900
diff
changeset
|
2398 } |
c26de9aef2ed
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3900
diff
changeset
|
2399 } |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2400 |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2401 int java_lang_invoke_CountingMethodHandle::vmcount(oop mh) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
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|
2402 assert(is_instance(mh), "CMH only"); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
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|
2403 return mh->int_field(_vmcount_offset); |
c26de9aef2ed
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3900
diff
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|
2404 } |
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diff
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|
2405 |
c26de9aef2ed
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3900
diff
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|
2406 void java_lang_invoke_CountingMethodHandle::set_vmcount(oop mh, int count) { |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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parents:
3900
diff
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|
2407 assert(is_instance(mh), "CMH only"); |
c26de9aef2ed
7071307: MethodHandle bimorphic inlining should consider the frequency
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3900
diff
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|
2408 mh->int_field_put(_vmcount_offset, count); |
c26de9aef2ed
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3900
diff
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|
2409 } |
c26de9aef2ed
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3900
diff
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|
2410 |
2357
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|
2411 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2412 return mh->obj_field(_type_offset); |
2413 } | |
2414 | |
2357
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diff
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|
2415 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2416 mh->obj_field_put(_type_offset, mtype); |
2417 } | |
2418 | |
2419 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2420 // required to carry the arguments of this MH | |
3938 | 2421 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2422 oop mtype = type(mh); |
2423 if (mtype == NULL) return 0; // Java code would get NPE | |
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|
2424 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2425 if (form == NULL) return 0; // Java code would get NPE |
2357
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2356
diff
changeset
|
2426 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2427 } |
2428 | |
2429 // fetch the low-level entry point for this mh | |
2357
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diff
changeset
|
2430 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2431 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2432 } | |
2433 | |
2357
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diff
changeset
|
2434 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2435 assert(_vmentry_offset != 0, "must be present"); |
2436 | |
2437 // This is always the final step that initializes a valid method handle: | |
2438 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2439 | |
2440 // There should be enough memory barriers on exit from native methods | |
2441 // to ensure that the MH is fully initialized to all threads before | |
2442 // Java code can publish it in global data structures. | |
2443 // But just in case, we use release_address_field_put. | |
2444 } | |
2445 | |
2446 /// MemberName accessors | |
2447 | |
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2448 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2449 assert(is_instance(mname), "wrong type"); |
2450 return mname->obj_field(_clazz_offset); | |
2451 } | |
2452 | |
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2453 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2454 assert(is_instance(mname), "wrong type"); |
2455 mname->obj_field_put(_clazz_offset, clazz); | |
2456 } | |
2457 | |
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2458 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2459 assert(is_instance(mname), "wrong type"); |
2460 return mname->obj_field(_name_offset); | |
2461 } | |
2462 | |
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2463 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2464 assert(is_instance(mname), "wrong type"); |
2465 mname->obj_field_put(_name_offset, name); | |
2466 } | |
2467 | |
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2468 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2469 assert(is_instance(mname), "wrong type"); |
2470 return mname->obj_field(_type_offset); | |
2471 } | |
2472 | |
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2473 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2474 assert(is_instance(mname), "wrong type"); |
2475 mname->obj_field_put(_type_offset, type); | |
2476 } | |
2477 | |
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2478 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2479 assert(is_instance(mname), "wrong type"); |
2480 return mname->int_field(_flags_offset); | |
2481 } | |
2482 | |
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2483 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2484 assert(is_instance(mname), "wrong type"); |
2485 mname->int_field_put(_flags_offset, flags); | |
2486 } | |
2487 | |
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2488 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2489 assert(is_instance(mname), "wrong type"); |
2490 return mname->obj_field(_vmtarget_offset); | |
2491 } | |
2492 | |
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2493 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2494 assert(is_instance(mname), "wrong type"); |
2495 mname->obj_field_put(_vmtarget_offset, ref); | |
2496 } | |
2497 | |
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2498 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2499 assert(is_instance(mname), "wrong type"); |
2500 return mname->int_field(_vmindex_offset); | |
2501 } | |
2502 | |
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2503 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2504 assert(is_instance(mname), "wrong type"); |
2505 mname->int_field_put(_vmindex_offset, index); | |
2506 } | |
2507 | |
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2508 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2509 assert(is_instance(mh), "MH only"); |
2510 return mh->obj_field(_vmtarget_offset); | |
2511 } | |
2512 | |
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2513 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2514 assert(is_instance(mh), "MH only"); |
2515 mh->obj_field_put(_vmtarget_offset, ref); | |
2516 } | |
2517 | |
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2518 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2519 assert(is_instance(mh), "DMH only"); |
2520 return mh->int_field(_vmindex_offset); | |
2521 } | |
2522 | |
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2523 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2524 assert(is_instance(mh), "DMH only"); |
2525 mh->int_field_put(_vmindex_offset, index); | |
2526 } | |
2527 | |
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2528 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2529 assert(is_instance(mh), "BMH only"); |
2530 return mh->int_field(_vmargslot_offset); | |
2531 } | |
2532 | |
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|
2533 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2534 assert(is_instance(mh), "BMH only"); |
2535 return mh->obj_field(_argument_offset); | |
2536 } | |
2537 | |
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2538 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2539 assert(is_instance(mh), "AMH only"); |
2540 return mh->int_field(_conversion_offset); | |
2541 } | |
2542 | |
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|
2543 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2544 assert(is_instance(mh), "AMH only"); |
2545 mh->int_field_put(_conversion_offset, conv); | |
2546 } | |
2547 | |
2548 | |
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|
2549 // Support for java_lang_invoke_MethodType |
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2550 |
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|
2551 int java_lang_invoke_MethodType::_rtype_offset; |
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|
2552 int java_lang_invoke_MethodType::_ptypes_offset; |
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|
2553 int java_lang_invoke_MethodType::_form_offset; |
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|
2554 |
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|
2555 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2556 klassOop k = SystemDictionary::MethodType_klass(); |
2557 if (k != NULL) { | |
2558 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2559 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
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2560 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2561 } |
2562 } | |
2563 | |
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|
2564 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2565 st->print("("); |
2566 objArrayOop pts = ptypes(mt); | |
2567 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2568 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2569 } | |
2570 st->print(")"); | |
2571 java_lang_Class::print_signature(rtype(mt), st); | |
2572 } | |
2573 | |
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|
2574 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2575 ResourceMark rm; |
2576 stringStream buffer(128); | |
2577 print_signature(mt, &buffer); | |
2578 const char* sigstr = buffer.base(); | |
2579 int siglen = (int) buffer.size(); | |
2177
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diff
changeset
|
2580 Symbol *name; |
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6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
2581 if (!intern_if_not_found) { |
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diff
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|
2582 name = SymbolTable::probe(sigstr, siglen); |
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|
2583 } else { |
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diff
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|
2584 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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|
2585 } |
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|
2586 return name; |
710 | 2587 } |
2588 | |
3785
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2589 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2590 if (rtype(mt1) != rtype(mt2)) |
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|
2591 return false; |
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|
2592 if (ptype_count(mt1) != ptype_count(mt2)) |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2593 return false; |
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|
2594 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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2595 if (ptype(mt1, i) != ptype(mt2, i)) |
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|
2596 return false; |
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7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
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|
2597 } |
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|
2598 return true; |
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|
2599 } |
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changeset
|
2600 |
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|
2601 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2602 assert(is_instance(mt), "must be a MethodType"); |
2603 return mt->obj_field(_rtype_offset); | |
2604 } | |
2605 | |
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|
2606 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2607 assert(is_instance(mt), "must be a MethodType"); |
2608 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2609 } | |
2610 | |
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diff
changeset
|
2611 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2612 assert(is_instance(mt), "must be a MethodType"); |
2613 return mt->obj_field(_form_offset); | |
2614 } | |
2615 | |
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|
2616 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2617 return ptypes(mt)->obj_at(idx); |
2618 } | |
2619 | |
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|
2620 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
1133
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
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1096
diff
changeset
|
2621 return ptypes(mt)->length(); |
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
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diff
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|
2622 } |
aa62b9388fce
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diff
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|
2623 |
710 | 2624 |
2625 | |
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|
2626 // Support for java_lang_invoke_MethodTypeForm |
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|
2627 |
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|
2628 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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|
2629 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
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|
2630 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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|
2631 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
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|
2632 |
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|
2633 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2634 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2635 if (k != NULL) { | |
2636 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
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|
2637 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
2357
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|
2638 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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|
2639 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
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1552
diff
changeset
|
2640 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
3938 | 2641 METHODTYPEFORM_INJECTED_FIELDS(INJECTED_FIELD_COMPUTE_OFFSET); |
710 | 2642 } |
2643 } | |
2644 | |
2357
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|
2645 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2646 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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diff
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|
2647 assert(_vmslots_offset > 0, ""); |
710 | 2648 return mtform->int_field(_vmslots_offset); |
2649 } | |
2650 | |
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|
2651 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
167b70ff3abc
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diff
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|
2652 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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diff
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|
2653 assert(_vmlayout_offset > 0, ""); |
167b70ff3abc
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diff
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|
2654 return mtform->obj_field(_vmlayout_offset); |
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diff
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|
2655 } |
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|
2656 |
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|
2657 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
167b70ff3abc
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diff
changeset
|
2658 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
167b70ff3abc
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parents:
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diff
changeset
|
2659 oop previous = vmlayout(mtform); |
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parents:
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diff
changeset
|
2660 if (previous != NULL) { |
167b70ff3abc
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parents:
3272
diff
changeset
|
2661 return previous; // someone else beat us to it |
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parents:
3272
diff
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|
2662 } |
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3272
diff
changeset
|
2663 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
167b70ff3abc
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parents:
3272
diff
changeset
|
2664 OrderAccess::storestore(); // make sure our copy is fully committed |
167b70ff3abc
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3272
diff
changeset
|
2665 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
167b70ff3abc
6939861: JVM should handle more conversion operations
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|
2666 if (previous != NULL) { |
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|
2667 return previous; // someone else beat us to it |
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|
2668 } |
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|
2669 return cookie; |
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|
2670 } |
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|
2671 |
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2672 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2673 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2674 return mtform->obj_field(_erasedType_offset); | |
2675 } | |
2676 | |
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2677 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
1793
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|
2678 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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2679 return mtform->obj_field(_genericInvoker_offset); |
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|
2680 } |
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|
2681 |
710 | 2682 |
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2683 // Support for java_lang_invoke_CallSite |
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2684 |
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2685 int java_lang_invoke_CallSite::_target_offset; |
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|
2686 |
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|
2687 void java_lang_invoke_CallSite::compute_offsets() { |
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|
2688 if (!EnableInvokeDynamic) return; |
1059
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|
2689 klassOop k = SystemDictionary::CallSite_klass(); |
726
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|
2690 if (k != NULL) { |
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|
2691 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
726
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|
2692 } |
3900
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|
2693 |
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2694 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
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2695 // (For C2: keep this until we have throttling logic for uncommon traps.) |
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|
2696 if (k != NULL) { |
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|
2697 instanceKlass* ik = instanceKlass::cast(k); |
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2698 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
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2699 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
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2700 guarantee(m_normal != NULL && m_volatile != NULL, "must exist"); |
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2701 m_normal->set_not_compilable_quietly(); |
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2702 m_volatile->set_not_compilable_quietly(); |
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|
2703 } |
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|
2704 } |
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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; | |
2716 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
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 | |
2738 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2739 // Allocate result | |
2740 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_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 | |
3938 | 2750 bool java_lang_ClassLoader::offsets_computed = false; |
2751 int java_lang_ClassLoader::parallelCapable_offset = -1; | |
2752 | |
2753 void java_lang_ClassLoader::compute_offsets() { | |
2754 assert(!offsets_computed, "offsets should be initialized only once"); | |
2755 offsets_computed = true; | |
2756 | |
2757 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
2758 klassOop k1 = SystemDictionary::ClassLoader_klass(); | |
2759 compute_optional_offset(parallelCapable_offset, | |
2760 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
2761 } | |
0 | 2762 |
2763 oop java_lang_ClassLoader::parent(oop loader) { | |
2764 assert(loader->is_oop(), "loader must be oop"); | |
2765 return loader->obj_field(parent_offset); | |
2766 } | |
2767 | |
2768 | |
3938 | 2769 // For class loader classes, parallelCapable defined |
2770 // based on non-null field | |
2771 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
2772 bool java_lang_ClassLoader::parallelCapable(oop class_loader) { | |
2773 if (!JDK_Version::is_gte_jdk17x_version() | |
2774 || parallelCapable_offset == -1) { | |
2775 // Default for backward compatibility is false | |
2776 return false; | |
2777 } | |
2778 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
2779 } | |
2780 | |
0 | 2781 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { |
2782 // Fix for 4474172; see evaluation for more details | |
2783 loader = non_reflection_class_loader(loader); | |
2784 | |
2785 oop cl = SystemDictionary::java_system_loader(); | |
2786 while(cl != NULL) { | |
2787 if (cl == loader) return true; | |
2788 cl = parent(cl); | |
2789 } | |
2790 return false; | |
2791 } | |
2792 | |
2793 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2794 if (loader != NULL) { | |
2795 // See whether this is one of the class loaders associated with | |
2796 // the generated bytecodes for reflection, and if so, "magically" | |
2797 // delegate to its parent to prevent class loading from occurring | |
2798 // in places where applications using reflection didn't expect it. | |
1142 | 2799 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2800 // This might be null in non-1.4 JDKs |
2801 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2802 return parent(loader); | |
2803 } | |
2804 } | |
2805 return loader; | |
2806 } | |
2807 | |
2808 | |
2809 // Support for java_lang_System | |
2810 int java_lang_System::in_offset_in_bytes() { | |
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2357
diff
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|
2811 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2812 } |
2813 | |
2814 | |
2815 int java_lang_System::out_offset_in_bytes() { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2816 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2817 } |
2818 | |
2819 | |
2820 int java_lang_System::err_offset_in_bytes() { | |
2376
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2357
diff
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|
2821 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2822 } |
2823 | |
2824 | |
2825 | |
2826 int java_lang_String::value_offset; | |
2827 int java_lang_String::offset_offset; | |
2828 int java_lang_String::count_offset; | |
2829 int java_lang_String::hash_offset; | |
3938 | 2830 int java_lang_Class::_klass_offset; |
2831 int java_lang_Class::_array_klass_offset; | |
2832 int java_lang_Class::_resolved_constructor_offset; | |
2833 int java_lang_Class::_oop_size_offset; | |
2834 int java_lang_Class::_static_oop_field_count_offset; | |
0 | 2835 int java_lang_Throwable::backtrace_offset; |
2836 int java_lang_Throwable::detailMessage_offset; | |
2837 int java_lang_Throwable::cause_offset; | |
2838 int java_lang_Throwable::stackTrace_offset; | |
3820
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3795
diff
changeset
|
2839 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 2840 int java_lang_reflect_AccessibleObject::override_offset; |
2841 int java_lang_reflect_Method::clazz_offset; | |
2842 int java_lang_reflect_Method::name_offset; | |
2843 int java_lang_reflect_Method::returnType_offset; | |
2844 int java_lang_reflect_Method::parameterTypes_offset; | |
2845 int java_lang_reflect_Method::exceptionTypes_offset; | |
2846 int java_lang_reflect_Method::slot_offset; | |
2847 int java_lang_reflect_Method::modifiers_offset; | |
2848 int java_lang_reflect_Method::signature_offset; | |
2849 int java_lang_reflect_Method::annotations_offset; | |
2850 int java_lang_reflect_Method::parameter_annotations_offset; | |
2851 int java_lang_reflect_Method::annotation_default_offset; | |
2852 int java_lang_reflect_Constructor::clazz_offset; | |
2853 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2854 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2855 int java_lang_reflect_Constructor::slot_offset; | |
2856 int java_lang_reflect_Constructor::modifiers_offset; | |
2857 int java_lang_reflect_Constructor::signature_offset; | |
2858 int java_lang_reflect_Constructor::annotations_offset; | |
2859 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2860 int java_lang_reflect_Field::clazz_offset; | |
2861 int java_lang_reflect_Field::name_offset; | |
2862 int java_lang_reflect_Field::type_offset; | |
2863 int java_lang_reflect_Field::slot_offset; | |
2864 int java_lang_reflect_Field::modifiers_offset; | |
2865 int java_lang_reflect_Field::signature_offset; | |
2866 int java_lang_reflect_Field::annotations_offset; | |
2867 int java_lang_boxing_object::value_offset; | |
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|
2868 int java_lang_boxing_object::long_value_offset; |
0 | 2869 int java_lang_ref_Reference::referent_offset; |
2870 int java_lang_ref_Reference::queue_offset; | |
2871 int java_lang_ref_Reference::next_offset; | |
2872 int java_lang_ref_Reference::discovered_offset; | |
2873 int java_lang_ref_Reference::static_lock_offset; | |
2874 int java_lang_ref_Reference::static_pending_offset; | |
2875 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2876 int java_lang_ref_SoftReference::timestamp_offset; | |
2877 int java_lang_ref_SoftReference::static_clock_offset; | |
2878 int java_lang_ClassLoader::parent_offset; | |
2879 int java_lang_System::static_in_offset; | |
2880 int java_lang_System::static_out_offset; | |
2881 int java_lang_System::static_err_offset; | |
2882 int java_lang_StackTraceElement::declaringClass_offset; | |
2883 int java_lang_StackTraceElement::methodName_offset; | |
2884 int java_lang_StackTraceElement::fileName_offset; | |
2885 int java_lang_StackTraceElement::lineNumber_offset; | |
2886 int java_lang_AssertionStatusDirectives::classes_offset; | |
2887 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2888 int java_lang_AssertionStatusDirectives::packages_offset; | |
2889 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2890 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2891 int java_nio_Buffer::_limit_offset; | |
2892 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2893 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2894 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2895 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2896 | |
2897 | |
2898 // Support for java_lang_StackTraceElement | |
2899 | |
2900 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2901 element->obj_field_put(fileName_offset, value); | |
2902 } | |
2903 | |
2904 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2905 element->obj_field_put(declaringClass_offset, value); | |
2906 } | |
2907 | |
2908 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2909 element->obj_field_put(methodName_offset, value); | |
2910 } | |
2911 | |
2912 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2913 element->int_field_put(lineNumber_offset, value); | |
2914 } | |
2915 | |
2916 | |
2917 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2918 | |
2919 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2920 o->obj_field_put(classes_offset, val); | |
2921 } | |
2922 | |
2923 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2924 o->obj_field_put(classEnabled_offset, val); | |
2925 } | |
2926 | |
2927 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2928 o->obj_field_put(packages_offset, val); | |
2929 } | |
2930 | |
2931 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2932 o->obj_field_put(packageEnabled_offset, val); | |
2933 } | |
2934 | |
2935 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2936 o->bool_field_put(deflt_offset, val); | |
2937 } | |
2938 | |
2939 | |
2940 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2941 int java_nio_Buffer::limit_offset() { | |
2942 return _limit_offset; | |
2943 } | |
2944 | |
2945 | |
2946 void java_nio_Buffer::compute_offsets() { | |
3938 | 2947 klassOop k = SystemDictionary::nio_Buffer_klass(); |
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2948 assert(k != NULL, "must be loaded in 1.4+"); |
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diff
changeset
|
2949 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2950 } |
2951 | |
2952 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2953 int sun_misc_AtomicLongCSImpl::value_offset() { | |
3938 | 2954 assert(SystemDictionary::AtomicLongCSImpl_klass() != NULL, "can't call this"); |
0 | 2955 return _value_offset; |
2956 } | |
2957 | |
2958 | |
2959 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
3938 | 2960 klassOop k = SystemDictionary::AtomicLongCSImpl_klass(); |
0 | 2961 // If this class is not present, its value field offset won't be referenced. |
2962 if (k != NULL) { | |
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|
2963 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2964 } |
2965 } | |
2966 | |
2967 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2968 if (_owner_offset != 0) return; | |
2969 | |
2970 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2971 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2972 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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|
2973 compute_offset(_owner_offset, k, |
0 | 2974 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2975 } | |
2976 | |
2977 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2978 assert(_owner_offset != 0, "Must be initialized"); | |
2979 return obj->obj_field(_owner_offset); | |
2980 } | |
2981 | |
2982 // Compute hard-coded offsets | |
2983 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2984 // are not available to determine the offset_of_static_fields. | |
2985 void JavaClasses::compute_hard_coded_offsets() { | |
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ba764ed4b6f2
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98
diff
changeset
|
2986 const int x = heapOopSize; |
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diff
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|
2987 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2988 |
2989 // Do the String Class | |
2990 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2991 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2992 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2993 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2994 | |
2995 // Throwable Class | |
2996 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2997 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2998 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2999 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
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|
3000 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 3001 |
3002 // java_lang_boxing_object | |
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3003 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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3004 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 3005 |
3006 // java_lang_ref_Reference: | |
3007 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
3008 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
3009 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
3010 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
3011 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
3012 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3013 // Artificial fields for java_lang_ref_Reference | |
3014 // The first field is for the discovered field added in 1.4 | |
3015 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3016 | |
3017 // java_lang_ref_SoftReference Class | |
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3018 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3019 // Don't multiply static fields because they are always in wordSize units |
3020 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3021 | |
3022 // java_lang_ClassLoader | |
3023 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3024 | |
3025 // java_lang_System | |
3026 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3027 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3028 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
3029 | |
3030 // java_lang_StackTraceElement | |
3031 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3032 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3033 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3034 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3035 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3036 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3037 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3038 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3039 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3040 | |
3041 } | |
3042 | |
3043 | |
3044 // Compute non-hard-coded field offsets of all the classes in this file | |
3045 void JavaClasses::compute_offsets() { | |
3938 | 3046 // java_lang_Class::compute_offsets was called earlier in bootstrap |
3047 java_lang_ClassLoader::compute_offsets(); | |
0 | 3048 java_lang_Thread::compute_offsets(); |
3049 java_lang_ThreadGroup::compute_offsets(); | |
2416
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6817525: turn on method handle functionality by default for JSR 292
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3050 if (EnableInvokeDynamic) { |
2357
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3051 java_lang_invoke_MethodHandle::compute_offsets(); |
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3052 java_lang_invoke_MemberName::compute_offsets(); |
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3053 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
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3054 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
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3055 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
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3056 java_lang_invoke_MethodType::compute_offsets(); |
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3057 java_lang_invoke_MethodTypeForm::compute_offsets(); |
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|
3058 java_lang_invoke_CallSite::compute_offsets(); |
3905
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|
3059 java_lang_invoke_CountingMethodHandle::compute_offsets(); |
726
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|
3060 } |
0 | 3061 java_security_AccessControlContext::compute_offsets(); |
3062 // Initialize reflection classes. The layouts of these classes | |
3063 // changed with the new reflection implementation in JDK 1.4, and | |
3064 // since the Universe doesn't know what JDK version it is until this | |
3065 // point we defer computation of these offsets until now. | |
3066 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3067 java_lang_reflect_Method::compute_offsets(); | |
3068 java_lang_reflect_Constructor::compute_offsets(); | |
3069 java_lang_reflect_Field::compute_offsets(); | |
3070 if (JDK_Version::is_gte_jdk14x_version()) { | |
3071 java_nio_Buffer::compute_offsets(); | |
3072 } | |
3073 if (JDK_Version::is_gte_jdk15x_version()) { | |
3074 sun_reflect_ConstantPool::compute_offsets(); | |
3075 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3076 } | |
3077 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 3078 |
3079 // generated interpreter code wants to know about the offsets we just computed: | |
3080 AbstractAssembler::update_delayed_values(); | |
0 | 3081 } |
3082 | |
3083 #ifndef PRODUCT | |
3084 | |
3085 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3086 // against changes in the class files | |
3087 | |
3088 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3089 EXCEPTION_MARK; | |
3090 fieldDescriptor fd; | |
2177
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|
3091 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3092 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3093 instanceKlassHandle h_klass (THREAD, k); | |
2177
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3094 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3095 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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3096 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3097 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3098 return false; | |
3099 } | |
3100 if (fd.is_static()) { | |
3101 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3102 return false; | |
3103 } | |
3104 if (fd.offset() == hardcoded_offset ) { | |
3105 return true; | |
3106 } else { | |
3107 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3108 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3109 return false; | |
3110 } | |
3111 } | |
3112 | |
3113 | |
3114 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3115 EXCEPTION_MARK; | |
3116 fieldDescriptor fd; | |
2177
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diff
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|
3117 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3118 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3119 instanceKlassHandle h_klass (THREAD, k); | |
2177
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3120 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
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3121 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
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3122 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3123 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3124 return false; | |
3125 } | |
3126 if (!fd.is_static()) { | |
3127 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3128 return false; | |
3129 } | |
2376
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2357
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3130 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
0 | 3131 return true; |
3132 } else { | |
2376
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3133 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 | 3134 return false; |
3135 } | |
3136 } | |
3137 | |
3138 | |
132
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3139 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
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3140 EXCEPTION_MARK; |
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3141 fieldDescriptor fd; |
2177
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|
3142 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
132
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3143 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
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3144 instanceKlassHandle h_klass (THREAD, k); |
2177
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3145 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
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diff
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|
3146 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
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3147 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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3148 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
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3149 return false; |
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|
3150 } |
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|
3151 if (!fd.is_static() || !fd.has_initial_value()) { |
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3152 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
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3153 return false; |
60b728ec77c1
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|
3154 } |
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|
3155 if (!fd.initial_value_tag().is_int()) { |
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3156 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
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3157 return false; |
60b728ec77c1
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|
3158 } |
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|
3159 jint field_value = fd.int_initial_value(); |
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diff
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|
3160 if (field_value == hardcoded_constant) { |
60b728ec77c1
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jrose
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diff
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|
3161 return true; |
60b728ec77c1
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jrose
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113
diff
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|
3162 } else { |
60b728ec77c1
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|
3163 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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|
3164 return false; |
60b728ec77c1
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|
3165 } |
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|
3166 } |
60b728ec77c1
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|
3167 |
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3168 |
0 | 3169 // Check the hard-coded field offsets of all the classes in this file |
3170 | |
3171 void JavaClasses::check_offsets() { | |
3172 bool valid = true; | |
3173 | |
3174 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3175 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3176 | |
165
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3177 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3178 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
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3179 |
0 | 3180 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3181 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3182 | |
132
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3183 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
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3184 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
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3185 |
0 | 3186 // java.lang.String |
3187 | |
3188 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3189 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3190 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3191 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3192 | |
3193 // java.lang.Class | |
3194 | |
3195 // Fake fields | |
3196 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3197 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3198 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3199 | |
3200 // java.lang.Throwable | |
3201 | |
3202 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3203 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3204 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3205 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3206 | |
3207 // Boxed primitive objects (java_lang_boxing_object) | |
3208 | |
3209 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3210 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3211 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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3212 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3213 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3214 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3215 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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3216 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3217 |
3218 // java.lang.ClassLoader | |
3219 | |
3220 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3221 | |
3222 // java.lang.System | |
3223 | |
3224 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3225 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3226 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3227 | |
3228 // java.lang.StackTraceElement | |
3229 | |
3230 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3231 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3232 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3233 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3234 | |
3235 // java.lang.ref.Reference | |
3236 | |
3237 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3238 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3239 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3240 // Fake field | |
3241 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3242 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3243 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3244 | |
3245 // java.lang.ref.SoftReference | |
3246 | |
3247 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3248 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3249 | |
3250 // java.lang.AssertionStatusDirectives | |
3251 // | |
3252 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3253 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3254 // into merlin "for some time." Without it, the vm will fail with early | |
3255 // merlin builds. | |
3256 | |
3257 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3258 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3259 const char* sig = "[Ljava/lang/String;"; | |
3260 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3261 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3262 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3263 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3264 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3265 } | |
3266 | |
3267 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3268 } | |
3269 | |
3270 #endif // PRODUCT | |
3271 | |
3938 | 3272 int InjectedField::compute_offset() { |
3273 klassOop klass_oop = klass(); | |
3274 for (AllFieldStream fs(instanceKlass::cast(klass_oop)); !fs.done(); fs.next()) { | |
3275 if (!may_be_java && !fs.access_flags().is_internal()) { | |
3276 // Only look at injected fields | |
3277 continue; | |
3278 } | |
3279 if (fs.name() == name() && fs.signature() == signature()) { | |
3280 return fs.offset(); | |
3281 } | |
3282 } | |
3283 ResourceMark rm; | |
3284 tty->print_cr("Invalid layout of %s at %s", instanceKlass::cast(klass_oop)->external_name(), name()->as_C_string()); | |
3285 fatal("Invalid layout of preloaded class"); | |
3286 return -1; | |
3287 } | |
3288 | |
0 | 3289 void javaClasses_init() { |
3290 JavaClasses::compute_offsets(); | |
3291 JavaClasses::check_offsets(); | |
3292 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3293 } |