Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 3900:a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
Reviewed-by: never
author | twisti |
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date | Thu, 01 Sep 2011 01:31:25 -0700 |
parents | 0b80db433fcb |
children | c26de9aef2ed |
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" | |
36 #include "oops/instanceKlass.hpp" | |
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37 #include "oops/instanceMirrorKlass.hpp" |
1972 | 38 #include "oops/klass.hpp" |
39 #include "oops/klassOop.hpp" | |
40 #include "oops/methodOop.hpp" | |
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41 #include "oops/symbol.hpp" |
1972 | 42 #include "oops/typeArrayOop.hpp" |
43 #include "runtime/fieldDescriptor.hpp" | |
44 #include "runtime/handles.inline.hpp" | |
45 #include "runtime/interfaceSupport.hpp" | |
46 #include "runtime/java.hpp" | |
47 #include "runtime/javaCalls.hpp" | |
48 #include "runtime/safepoint.hpp" | |
49 #include "runtime/vframe.hpp" | |
50 #include "utilities/preserveException.hpp" | |
51 #ifdef TARGET_OS_FAMILY_linux | |
52 # include "thread_linux.inline.hpp" | |
53 #endif | |
54 #ifdef TARGET_OS_FAMILY_solaris | |
55 # include "thread_solaris.inline.hpp" | |
56 #endif | |
57 #ifdef TARGET_OS_FAMILY_windows | |
58 # include "thread_windows.inline.hpp" | |
59 #endif | |
0 | 60 |
710 | 61 static bool find_field(instanceKlass* ik, |
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62 Symbol* name_symbol, Symbol* signature_symbol, |
710 | 63 fieldDescriptor* fd, |
64 bool allow_super = false) { | |
65 if (allow_super) | |
66 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
67 else | |
68 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
69 } | |
70 | |
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71 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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72 static void |
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73 compute_offset(int &dest_offset, |
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74 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 75 bool allow_super = false) { |
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76 fieldDescriptor fd; |
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77 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 78 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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79 ResourceMark rm; |
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80 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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81 fatal("Invalid layout of preloaded class"); |
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82 } |
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83 dest_offset = fd.offset(); |
0 | 84 } |
85 | |
86 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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87 static void |
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88 compute_optional_offset(int& dest_offset, |
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89 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
710 | 90 bool allow_super = false) { |
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91 fieldDescriptor fd; |
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92 instanceKlass* ik = instanceKlass::cast(klass_oop); |
710 | 93 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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94 dest_offset = fd.offset(); |
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95 } |
0 | 96 } |
97 | |
710 | 98 |
0 | 99 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
100 // Create the String object first, so there's a chance that the String | |
101 // and the char array it points to end up in the same cache line. | |
102 oop obj; | |
103 if (tenured) { | |
1142 | 104 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
0 | 105 } else { |
1142 | 106 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
0 | 107 } |
108 | |
109 // Create the char array. The String object must be handlized here | |
110 // because GC can happen as a result of the allocation attempt. | |
111 Handle h_obj(THREAD, obj); | |
112 typeArrayOop buffer; | |
113 if (tenured) { | |
114 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
115 } else { | |
116 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
117 } | |
118 | |
119 // Point the String at the char array | |
120 obj = h_obj(); | |
121 set_value(obj, buffer); | |
122 // No need to zero the offset, allocation zero'ed the entire String object | |
123 assert(offset(obj) == 0, "initial String offset should be zero"); | |
124 //set_offset(obj, 0); | |
125 set_count(obj, length); | |
126 | |
127 return h_obj; | |
128 } | |
129 | |
130 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
131 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
132 typeArrayOop buffer = value(h_obj()); | |
133 for (int index = 0; index < length; index++) { | |
134 buffer->char_at_put(index, unicode[index]); | |
135 } | |
136 return h_obj; | |
137 } | |
138 | |
139 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
140 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
141 } | |
142 | |
143 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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144 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
0 | 145 } |
146 | |
147 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
148 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
149 return h_obj(); | |
150 } | |
151 | |
152 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
153 if (utf8_str == NULL) { | |
154 return Handle(); | |
155 } | |
156 int length = UTF8::unicode_length(utf8_str); | |
157 Handle h_obj = basic_create(length, false, CHECK_NH); | |
158 if (length > 0) { | |
159 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
160 } | |
161 return h_obj; | |
162 } | |
163 | |
164 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
165 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
166 return h_obj(); | |
167 } | |
168 | |
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169 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
0 | 170 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
171 Handle h_obj = basic_create(length, false, CHECK_NH); | |
172 if (length > 0) { | |
173 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
174 } | |
175 return h_obj; | |
176 } | |
177 | |
178 // Converts a C string to a Java String based on current encoding | |
179 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
180 assert(str != NULL, "bad arguments"); | |
181 | |
182 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
183 static to_java_string_fn_t _to_java_string_fn = NULL; | |
184 | |
185 if (_to_java_string_fn == NULL) { | |
186 void *lib_handle = os::native_java_library(); | |
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187 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
0 | 188 if (_to_java_string_fn == NULL) { |
189 fatal("NewStringPlatform missing"); | |
190 } | |
191 } | |
192 | |
193 jstring js = NULL; | |
194 { JavaThread* thread = (JavaThread*)THREAD; | |
195 assert(thread->is_Java_thread(), "must be java thread"); | |
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196 HandleMark hm(thread); |
0 | 197 ThreadToNativeFromVM ttn(thread); |
198 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
199 } | |
200 return Handle(THREAD, JNIHandles::resolve(js)); | |
201 } | |
202 | |
22
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203 // Converts a Java String to a native C string that can be used for |
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204 // native OS calls. |
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205 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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206 |
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207 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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208 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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209 |
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210 if (_to_platform_string_fn == NULL) { |
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211 void *lib_handle = os::native_java_library(); |
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212 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
22
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213 if (_to_platform_string_fn == NULL) { |
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214 fatal("GetStringPlatformChars missing"); |
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215 } |
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216 } |
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217 |
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218 char *native_platform_string; |
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219 { JavaThread* thread = (JavaThread*)THREAD; |
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220 assert(thread->is_Java_thread(), "must be java thread"); |
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221 JNIEnv *env = thread->jni_environment(); |
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222 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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223 bool is_copy; |
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224 HandleMark hm(thread); |
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225 ThreadToNativeFromVM ttn(thread); |
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226 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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227 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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228 JNIHandles::destroy_local(js); |
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229 } |
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230 return native_platform_string; |
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231 } |
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232 |
0 | 233 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
234 oop obj = java_string(); | |
235 // Typical usage is to convert all '/' to '.' in string. | |
236 typeArrayOop value = java_lang_String::value(obj); | |
237 int offset = java_lang_String::offset(obj); | |
238 int length = java_lang_String::length(obj); | |
239 | |
240 // First check if any from_char exist | |
241 int index; // Declared outside, used later | |
242 for (index = 0; index < length; index++) { | |
243 if (value->char_at(index + offset) == from_char) { | |
244 break; | |
245 } | |
246 } | |
247 if (index == length) { | |
248 // No from_char, so do not copy. | |
249 return java_string; | |
250 } | |
251 | |
252 // Create new UNICODE buffer. Must handlize value because GC | |
253 // may happen during String and char array creation. | |
254 typeArrayHandle h_value(THREAD, value); | |
255 Handle string = basic_create(length, false, CHECK_NH); | |
256 | |
257 typeArrayOop from_buffer = h_value(); | |
258 typeArrayOop to_buffer = java_lang_String::value(string()); | |
259 | |
260 // Copy contents | |
261 for (index = 0; index < length; index++) { | |
262 jchar c = from_buffer->char_at(index + offset); | |
263 if (c == from_char) { | |
264 c = to_char; | |
265 } | |
266 to_buffer->char_at_put(index, c); | |
267 } | |
268 return string; | |
269 } | |
270 | |
271 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
272 typeArrayOop value = java_lang_String::value(java_string); | |
273 int offset = java_lang_String::offset(java_string); | |
274 length = java_lang_String::length(java_string); | |
275 | |
276 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
277 for (int index = 0; index < length; index++) { | |
278 result[index] = value->char_at(index + offset); | |
279 } | |
280 return result; | |
281 } | |
282 | |
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283 unsigned int java_lang_String::hash_string(oop java_string) { |
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284 typeArrayOop value = java_lang_String::value(java_string); |
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285 int offset = java_lang_String::offset(java_string); |
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286 int length = java_lang_String::length(java_string); |
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287 |
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288 if (length == 0) return 0; |
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289 return hash_string(value->char_at_addr(offset), length); |
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290 } |
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291 |
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292 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
0 | 293 oop obj = java_string(); |
294 typeArrayOop value = java_lang_String::value(obj); | |
295 int offset = java_lang_String::offset(obj); | |
296 int length = java_lang_String::length(obj); | |
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297 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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298 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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299 return sym; |
0 | 300 } |
301 | |
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302 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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303 typeArrayOop value = java_lang_String::value(java_string); |
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304 int offset = java_lang_String::offset(java_string); |
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305 int length = java_lang_String::length(java_string); |
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306 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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307 return SymbolTable::probe_unicode(base, length); |
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308 } |
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309 |
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310 |
0 | 311 int java_lang_String::utf8_length(oop java_string) { |
312 typeArrayOop value = java_lang_String::value(java_string); | |
313 int offset = java_lang_String::offset(java_string); | |
314 int length = java_lang_String::length(java_string); | |
315 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
316 return UNICODE::utf8_length(position, length); | |
317 } | |
318 | |
319 char* java_lang_String::as_utf8_string(oop java_string) { | |
320 typeArrayOop value = java_lang_String::value(java_string); | |
321 int offset = java_lang_String::offset(java_string); | |
322 int length = java_lang_String::length(java_string); | |
323 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
324 return UNICODE::as_utf8(position, length); | |
325 } | |
326 | |
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327 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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328 typeArrayOop value = java_lang_String::value(java_string); |
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329 int offset = java_lang_String::offset(java_string); |
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330 int length = java_lang_String::length(java_string); |
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331 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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332 return UNICODE::as_utf8(position, length, buf, buflen); |
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333 } |
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334 |
0 | 335 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
336 typeArrayOop value = java_lang_String::value(java_string); | |
337 int offset = java_lang_String::offset(java_string); | |
338 int length = java_lang_String::length(java_string); | |
339 assert(start + len <= length, "just checking"); | |
340 jchar* position = value->char_at_addr(offset + start); | |
341 return UNICODE::as_utf8(position, len); | |
342 } | |
343 | |
344 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
345 assert(SharedSkipVerify || | |
1142 | 346 java_string->klass() == SystemDictionary::String_klass(), |
0 | 347 "must be java_string"); |
348 typeArrayOop value = java_lang_String::value(java_string); | |
349 int offset = java_lang_String::offset(java_string); | |
350 int length = java_lang_String::length(java_string); | |
351 if (length != len) { | |
352 return false; | |
353 } | |
354 for (int i = 0; i < len; i++) { | |
355 if (value->char_at(i + offset) != chars[i]) { | |
356 return false; | |
357 } | |
358 } | |
359 return true; | |
360 } | |
361 | |
362 void java_lang_String::print(Handle java_string, outputStream* st) { | |
363 oop obj = java_string(); | |
1142 | 364 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
0 | 365 typeArrayOop value = java_lang_String::value(obj); |
366 int offset = java_lang_String::offset(obj); | |
367 int length = java_lang_String::length(obj); | |
368 | |
369 int end = MIN2(length, 100); | |
370 if (value == NULL) { | |
371 // This can happen if, e.g., printing a String | |
372 // object before its initializer has been called | |
373 st->print_cr("NULL"); | |
374 } else { | |
375 st->print("\""); | |
376 for (int index = 0; index < length; index++) { | |
377 st->print("%c", value->char_at(index + offset)); | |
378 } | |
379 st->print("\""); | |
380 } | |
381 } | |
382 | |
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383 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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384 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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385 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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386 if (fd->has_initial_value()) { |
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387 BasicType t = fd->field_type(); |
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388 switch (t) { |
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389 case T_BYTE: |
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390 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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391 break; |
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392 case T_BOOLEAN: |
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393 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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394 break; |
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395 case T_CHAR: |
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396 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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397 break; |
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398 case T_SHORT: |
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399 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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400 break; |
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401 case T_INT: |
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402 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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403 break; |
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404 case T_FLOAT: |
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405 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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406 break; |
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407 case T_DOUBLE: |
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408 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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409 break; |
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410 case T_LONG: |
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411 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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412 break; |
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413 case T_OBJECT: |
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414 { |
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415 #ifdef ASSERT |
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416 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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417 assert(fd->signature() == sym, "just checking"); |
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418 #endif |
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419 oop string = fd->string_initial_value(CHECK); |
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420 mirror()->obj_field_put(fd->offset(), string); |
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421 } |
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422 break; |
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423 default: |
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424 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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425 "Illegal ConstantValue attribute in class file"); |
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426 } |
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427 } |
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428 } |
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429 |
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430 |
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431 // During bootstrap, java.lang.Class wasn't loaded so static field |
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432 // offsets were computed without the size added it. Go back and |
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433 // update all the static field offsets to included the size. |
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434 static void fixup_static_field(fieldDescriptor* fd, TRAPS) { |
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435 if (fd->is_static()) { |
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436 int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields(); |
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437 typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields(); |
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438 fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset)); |
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439 fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset)); |
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440 } |
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441 } |
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442 |
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443 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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444 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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445 |
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446 if (k->oop_is_instance()) { |
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447 // Fixup the offsets |
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448 instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK); |
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449 } |
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450 create_mirror(k, CHECK); |
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451 } |
0 | 452 |
453 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
454 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
455 // Use this moment of initialization to cache modifier_flags also, | |
456 // to support Class.getModifiers(). Instance classes recalculate | |
457 // the cached flags after the class file is parsed, but before the | |
458 // class is put into the system dictionary. | |
459 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
460 k->set_modifier_flags(computed_modifiers); | |
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461 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
0 | 462 // Allocate mirror (java.lang.Class instance) |
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463 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
0 | 464 // Setup indirections |
465 mirror->obj_field_put(klass_offset, k()); | |
466 k->set_java_mirror(mirror()); | |
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467 |
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468 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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469 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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470 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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471 |
0 | 472 // It might also have a component mirror. This mirror must already exist. |
473 if (k->oop_is_javaArray()) { | |
474 Handle comp_mirror; | |
475 if (k->oop_is_typeArray()) { | |
476 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
477 comp_mirror = Universe::java_mirror(type); | |
478 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
479 } else if (k->oop_is_objArray()) { | |
480 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
481 if (element_klass != NULL | |
482 && (Klass::cast(element_klass)->oop_is_instance() || | |
483 Klass::cast(element_klass)->oop_is_javaArray())) { | |
484 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
485 assert(comp_mirror.not_null(), "must have element mirror"); | |
486 } | |
487 // else some object array internal to the VM, like systemObjArrayKlassObj | |
488 } | |
489 if (comp_mirror.not_null()) { | |
490 // Two-way link between the array klass and its component mirror: | |
491 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
492 set_array_klass(comp_mirror(), k->as_klassOop()); | |
493 } | |
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494 } else if (k->oop_is_instance()) { |
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495 // Initialize static fields |
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496 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
0 | 497 } |
498 return mirror(); | |
499 } else { | |
500 return NULL; | |
501 } | |
502 } | |
503 | |
504 | |
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505 |
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506 int java_lang_Class::oop_size(oop java_class) { |
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507 assert(oop_size_offset != 0, "must be set"); |
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508 return java_class->int_field(oop_size_offset); |
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509 } |
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510 void java_lang_Class::set_oop_size(oop java_class, int size) { |
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511 assert(oop_size_offset != 0, "must be set"); |
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512 java_class->int_field_put(oop_size_offset, size); |
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513 } |
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514 int java_lang_Class::static_oop_field_count(oop java_class) { |
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515 assert(static_oop_field_count_offset != 0, "must be set"); |
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516 return java_class->int_field(static_oop_field_count_offset); |
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517 } |
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518 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
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519 assert(static_oop_field_count_offset != 0, "must be set"); |
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520 java_class->int_field_put(static_oop_field_count_offset, size); |
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521 } |
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522 |
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523 |
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524 |
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525 |
0 | 526 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
527 // This should be improved by adding a field at the Java level or by | |
528 // introducing a new VM klass (see comment in ClassFileParser) | |
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529 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
0 | 530 if (type != T_VOID) { |
531 klassOop aklass = Universe::typeArrayKlassObj(type); | |
532 assert(aklass != NULL, "correct bootstrap"); | |
533 set_array_klass(java_class, aklass); | |
534 } | |
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535 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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536 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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537 java_lang_Class::set_static_oop_field_count(java_class, 0); |
0 | 538 return java_class; |
539 } | |
540 | |
541 | |
542 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
543 //%note memory_2 | |
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544 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 545 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
546 assert(k == NULL || k->is_klass(), "type check"); | |
547 return k; | |
548 } | |
549 | |
550 | |
665
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551 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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552 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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553 Symbol* name = NULL; |
665
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554 bool is_instance = false; |
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555 if (is_primitive(java_class)) { |
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556 name = vmSymbols::type_signature(primitive_type(java_class)); |
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557 } else { |
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558 klassOop k = as_klassOop(java_class); |
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559 is_instance = Klass::cast(k)->oop_is_instance(); |
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560 name = Klass::cast(k)->name(); |
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561 } |
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562 if (name == NULL) { |
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563 st->print("<null>"); |
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564 return; |
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565 } |
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566 if (is_instance) st->print("L"); |
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567 st->write((char*) name->base(), (int) name->utf8_length()); |
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568 if (is_instance) st->print(";"); |
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569 } |
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570 |
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571 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
665
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572 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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573 Symbol* name; |
665
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574 if (is_primitive(java_class)) { |
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575 name = vmSymbols::type_signature(primitive_type(java_class)); |
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576 // Because this can create a new symbol, the caller has to decrement |
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577 // the refcount, so make adjustment here and below for symbols returned |
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578 // that are not created or incremented due to a successful lookup. |
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579 name->increment_refcount(); |
665
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580 } else { |
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581 klassOop k = as_klassOop(java_class); |
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582 if (!Klass::cast(k)->oop_is_instance()) { |
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583 name = Klass::cast(k)->name(); |
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584 name->increment_refcount(); |
665
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585 } else { |
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586 ResourceMark rm; |
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587 const char* sigstr = Klass::cast(k)->signature_name(); |
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588 int siglen = (int) strlen(sigstr); |
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589 if (!intern_if_not_found) { |
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590 name = SymbolTable::probe(sigstr, siglen); |
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591 } else { |
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592 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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593 } |
665
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594 } |
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595 } |
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596 return name; |
665
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597 } |
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598 |
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599 |
0 | 600 klassOop java_lang_Class::array_klass(oop java_class) { |
601 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
602 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
603 return k; | |
604 } | |
605 | |
606 | |
607 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
608 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
609 java_class->obj_field_put(array_klass_offset, klass); | |
610 } | |
611 | |
612 | |
613 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
614 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
615 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
616 return methodOop(constructor); | |
617 } | |
618 | |
619 | |
620 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
621 assert(constructor->is_method(), "should be method"); | |
622 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
623 } | |
624 | |
625 | |
626 bool java_lang_Class::is_primitive(oop java_class) { | |
665
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627 // should assert: |
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628 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
0 | 629 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
630 return k == NULL; | |
631 } | |
632 | |
633 | |
634 BasicType java_lang_Class::primitive_type(oop java_class) { | |
635 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
636 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
637 BasicType type = T_VOID; | |
638 if (ak != NULL) { | |
639 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
640 type = arrayKlass::cast(ak)->element_type(); | |
641 } else { | |
642 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
643 } | |
644 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
645 return type; | |
646 } | |
647 | |
665
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648 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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649 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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650 if (is_primitive(java_class)) { |
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651 if (reference_klass != NULL) |
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652 (*reference_klass) = NULL; |
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653 return primitive_type(java_class); |
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654 } else { |
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655 if (reference_klass != NULL) |
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656 (*reference_klass) = as_klassOop(java_class); |
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657 return T_OBJECT; |
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658 } |
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659 } |
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660 |
0 | 661 |
662 oop java_lang_Class::primitive_mirror(BasicType t) { | |
663 oop mirror = Universe::java_mirror(t); | |
1142 | 664 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
0 | 665 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
666 return mirror; | |
667 } | |
668 | |
669 bool java_lang_Class::offsets_computed = false; | |
670 int java_lang_Class::classRedefinedCount_offset = -1; | |
514 | 671 int java_lang_Class::parallelCapable_offset = -1; |
0 | 672 |
673 void java_lang_Class::compute_offsets() { | |
674 assert(!offsets_computed, "offsets should be initialized only once"); | |
675 offsets_computed = true; | |
676 | |
1142 | 677 klassOop k = SystemDictionary::Class_klass(); |
0 | 678 // The classRedefinedCount field is only present starting in 1.5, |
679 // so don't go fatal. | |
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680 compute_optional_offset(classRedefinedCount_offset, |
0 | 681 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
514 | 682 |
683 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
1142 | 684 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
514 | 685 compute_optional_offset(parallelCapable_offset, |
686 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
687 } | |
688 | |
689 // For class loader classes, parallelCapable defined | |
690 // based on non-null field | |
691 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
692 bool java_lang_Class::parallelCapable(oop class_loader) { | |
693 if (!JDK_Version::is_gte_jdk17x_version() | |
694 || parallelCapable_offset == -1) { | |
695 // Default for backward compatibility is false | |
696 return false; | |
697 } | |
698 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
0 | 699 } |
700 | |
701 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
702 if (!JDK_Version::is_gte_jdk15x_version() | |
703 || classRedefinedCount_offset == -1) { | |
704 // The classRedefinedCount field is only present starting in 1.5. | |
705 // If we don't have an offset for it then just return -1 as a marker. | |
706 return -1; | |
707 } | |
708 | |
709 return the_class_mirror->int_field(classRedefinedCount_offset); | |
710 } | |
711 | |
712 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
713 if (!JDK_Version::is_gte_jdk15x_version() | |
714 || classRedefinedCount_offset == -1) { | |
715 // The classRedefinedCount field is only present starting in 1.5. | |
716 // If we don't have an offset for it then nothing to set. | |
717 return; | |
718 } | |
719 | |
720 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
721 } | |
722 | |
723 | |
724 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
725 // platform thread structure, and a eetop offset which was used for thread | |
726 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
727 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
728 // instead of the privateInfo_offset. | |
729 // | |
730 // Note: The stackSize field is only present starting in 1.4. | |
731 | |
732 int java_lang_Thread::_name_offset = 0; | |
733 int java_lang_Thread::_group_offset = 0; | |
734 int java_lang_Thread::_contextClassLoader_offset = 0; | |
735 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
736 int java_lang_Thread::_priority_offset = 0; | |
737 int java_lang_Thread::_eetop_offset = 0; | |
738 int java_lang_Thread::_daemon_offset = 0; | |
739 int java_lang_Thread::_stillborn_offset = 0; | |
740 int java_lang_Thread::_stackSize_offset = 0; | |
741 int java_lang_Thread::_tid_offset = 0; | |
742 int java_lang_Thread::_thread_status_offset = 0; | |
743 int java_lang_Thread::_park_blocker_offset = 0; | |
744 int java_lang_Thread::_park_event_offset = 0 ; | |
745 | |
746 | |
747 void java_lang_Thread::compute_offsets() { | |
748 assert(_group_offset == 0, "offsets should be initialized only once"); | |
749 | |
1142 | 750 klassOop k = SystemDictionary::Thread_klass(); |
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751 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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752 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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753 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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754 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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755 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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756 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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757 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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758 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
0 | 759 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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760 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
0 | 761 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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762 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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763 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
0 | 764 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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765 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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766 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
0 | 767 vmSymbols::long_signature()); |
768 } | |
769 | |
770 | |
771 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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772 return (JavaThread*)java_thread->address_field(_eetop_offset); |
0 | 773 } |
774 | |
775 | |
776 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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777 java_thread->address_field_put(_eetop_offset, (address)thread); |
0 | 778 } |
779 | |
780 | |
781 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
782 oop name = java_thread->obj_field(_name_offset); | |
783 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
784 return typeArrayOop(name); | |
785 } | |
786 | |
787 | |
788 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
789 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
790 java_thread->obj_field_put(_name_offset, name); | |
791 } | |
792 | |
793 | |
794 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
795 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
796 } | |
797 | |
798 | |
799 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
800 java_thread->int_field_put(_priority_offset, priority); | |
801 } | |
802 | |
803 | |
804 oop java_lang_Thread::threadGroup(oop java_thread) { | |
805 return java_thread->obj_field(_group_offset); | |
806 } | |
807 | |
808 | |
809 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
810 return java_thread->bool_field(_stillborn_offset) != 0; | |
811 } | |
812 | |
813 | |
814 // We never have reason to turn the stillborn bit off | |
815 void java_lang_Thread::set_stillborn(oop java_thread) { | |
816 java_thread->bool_field_put(_stillborn_offset, true); | |
817 } | |
818 | |
819 | |
820 bool java_lang_Thread::is_alive(oop java_thread) { | |
821 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
822 return (thr != NULL); | |
823 } | |
824 | |
825 | |
826 bool java_lang_Thread::is_daemon(oop java_thread) { | |
827 return java_thread->bool_field(_daemon_offset) != 0; | |
828 } | |
829 | |
830 | |
831 void java_lang_Thread::set_daemon(oop java_thread) { | |
832 java_thread->bool_field_put(_daemon_offset, true); | |
833 } | |
834 | |
835 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
836 return java_thread->obj_field(_contextClassLoader_offset); | |
837 } | |
838 | |
839 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
840 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
841 } | |
842 | |
843 | |
844 jlong java_lang_Thread::stackSize(oop java_thread) { | |
845 // The stackSize field is only present starting in 1.4 | |
846 if (_stackSize_offset > 0) { | |
847 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
848 return java_thread->long_field(_stackSize_offset); | |
849 } else { | |
850 return 0; | |
851 } | |
852 } | |
853 | |
854 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
855 void java_lang_Thread::set_thread_status(oop java_thread, | |
856 java_lang_Thread::ThreadStatus status) { | |
857 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
858 // The threadStatus is only present starting in 1.5 | |
859 if (_thread_status_offset > 0) { | |
860 java_thread->int_field_put(_thread_status_offset, status); | |
861 } | |
862 } | |
863 | |
864 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
865 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
866 assert(Thread::current()->is_VM_thread() || | |
867 JavaThread::current()->thread_state() == _thread_in_vm, | |
868 "Java Thread is not running in vm"); | |
869 // The threadStatus is only present starting in 1.5 | |
870 if (_thread_status_offset > 0) { | |
871 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
872 } else { | |
873 // All we can easily figure out is if it is alive, but that is | |
874 // enough info for a valid unknown status. | |
875 // These aren't restricted to valid set ThreadStatus values, so | |
876 // use JVMTI values and cast. | |
877 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
878 if (thr == NULL) { | |
879 // the thread hasn't run yet or is in the process of exiting | |
880 return NEW; | |
881 } | |
882 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
883 } | |
884 } | |
885 | |
886 | |
887 jlong java_lang_Thread::thread_id(oop java_thread) { | |
888 // The thread ID field is only present starting in 1.5 | |
889 if (_tid_offset > 0) { | |
890 return java_thread->long_field(_tid_offset); | |
891 } else { | |
892 return 0; | |
893 } | |
894 } | |
895 | |
896 oop java_lang_Thread::park_blocker(oop java_thread) { | |
242 | 897 assert(JDK_Version::current().supports_thread_park_blocker() && |
898 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
0 | 899 |
900 if (_park_blocker_offset > 0) { | |
901 return java_thread->obj_field(_park_blocker_offset); | |
902 } | |
903 | |
904 return NULL; | |
905 } | |
906 | |
907 jlong java_lang_Thread::park_event(oop java_thread) { | |
908 if (_park_event_offset > 0) { | |
909 return java_thread->long_field(_park_event_offset); | |
910 } | |
911 return 0; | |
912 } | |
913 | |
914 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
915 if (_park_event_offset > 0) { | |
916 java_thread->long_field_put(_park_event_offset, ptr); | |
917 return true; | |
918 } | |
919 return false; | |
920 } | |
921 | |
922 | |
923 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
924 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
925 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
926 switch (status) { | |
927 case NEW : return "NEW"; | |
928 case RUNNABLE : return "RUNNABLE"; | |
929 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
930 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
931 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
932 case PARKED : return "WAITING (parking)"; | |
933 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
934 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
935 case TERMINATED : return "TERMINATED"; | |
936 default : return "UNKNOWN"; | |
937 }; | |
938 } | |
939 int java_lang_ThreadGroup::_parent_offset = 0; | |
940 int java_lang_ThreadGroup::_name_offset = 0; | |
941 int java_lang_ThreadGroup::_threads_offset = 0; | |
942 int java_lang_ThreadGroup::_groups_offset = 0; | |
943 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
944 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
945 int java_lang_ThreadGroup::_daemon_offset = 0; | |
946 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
947 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
948 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
949 | |
950 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
951 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
952 return java_thread_group->obj_field(_parent_offset); | |
953 } | |
954 | |
955 // ("name as oop" accessor is not necessary) | |
956 | |
957 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
958 oop name = java_thread_group->obj_field(_name_offset); | |
959 // ThreadGroup.name can be null | |
960 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
961 } | |
962 | |
963 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
964 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
965 return java_thread_group->int_field(_nthreads_offset); | |
966 } | |
967 | |
968 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
969 oop threads = java_thread_group->obj_field(_threads_offset); | |
970 assert(threads != NULL, "threadgroups should have threads"); | |
971 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
972 return objArrayOop(threads); | |
973 } | |
974 | |
975 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
976 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
977 return java_thread_group->int_field(_ngroups_offset); | |
978 } | |
979 | |
980 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
981 oop groups = java_thread_group->obj_field(_groups_offset); | |
982 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
983 return objArrayOop(groups); | |
984 } | |
985 | |
986 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
987 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
988 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
989 } | |
990 | |
991 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
992 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
993 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
994 } | |
995 | |
996 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
997 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
998 return java_thread_group->bool_field(_daemon_offset) != 0; | |
999 } | |
1000 | |
1001 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
1002 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
1003 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
1004 } | |
1005 | |
1006 void java_lang_ThreadGroup::compute_offsets() { | |
1007 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
1008 | |
1142 | 1009 klassOop k = SystemDictionary::ThreadGroup_klass(); |
0 | 1010 |
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1011 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1012 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1013 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1014 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1015 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1016 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1017 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1018 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1019 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1020 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
0 | 1021 } |
1022 | |
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1023 oop java_lang_Throwable::unassigned_stacktrace() { |
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1024 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1025 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1026 if (UseCompressedOops) { |
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1027 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1028 } else { |
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1029 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1030 } |
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1031 } |
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1032 |
0 | 1033 oop java_lang_Throwable::backtrace(oop throwable) { |
1034 return throwable->obj_field_acquire(backtrace_offset); | |
1035 } | |
1036 | |
1037 | |
1038 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
1039 throwable->release_obj_field_put(backtrace_offset, value); | |
1040 } | |
1041 | |
1042 | |
1043 oop java_lang_Throwable::message(oop throwable) { | |
1044 return throwable->obj_field(detailMessage_offset); | |
1045 } | |
1046 | |
1047 | |
1048 oop java_lang_Throwable::message(Handle throwable) { | |
1049 return throwable->obj_field(detailMessage_offset); | |
1050 } | |
1051 | |
1052 | |
1053 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
1054 throwable->obj_field_put(detailMessage_offset, value); | |
1055 } | |
1056 | |
1057 | |
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1058 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1059 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1060 } |
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1061 |
0 | 1062 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
1063 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
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1064 set_stacktrace(throwable, NULL); |
0 | 1065 } |
1066 | |
1067 | |
1068 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
1069 ResourceMark rm; | |
1070 klassOop k = throwable->klass(); | |
1071 assert(k != NULL, "just checking"); | |
1072 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1073 oop msg = message(throwable); | |
1074 if (msg != NULL) { | |
1075 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1076 } | |
1077 } | |
1078 | |
1079 | |
1080 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
1081 ResourceMark rm; | |
1082 klassOop k = throwable->klass(); | |
1083 assert(k != NULL, "just checking"); | |
1084 st->print("%s", instanceKlass::cast(k)->external_name()); | |
1085 oop msg = message(throwable); | |
1086 if (msg != NULL) { | |
1087 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
1088 } | |
1089 } | |
1090 | |
1091 // Print stack trace element to resource allocated buffer | |
1092 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
1093 // Get strings and string lengths | |
1094 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
1095 const char* klass_name = klass->external_name(); | |
1096 int buf_len = (int)strlen(klass_name); | |
1097 char* source_file_name; | |
1098 if (klass->source_file_name() == NULL) { | |
1099 source_file_name = NULL; | |
1100 } else { | |
1101 source_file_name = klass->source_file_name()->as_C_string(); | |
1102 buf_len += (int)strlen(source_file_name); | |
1103 } | |
1104 char* method_name = method->name()->as_C_string(); | |
1105 buf_len += (int)strlen(method_name); | |
1106 | |
1107 // Allocate temporary buffer with extra space for formatting and line number | |
1108 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
1109 | |
1110 // Print stack trace line in buffer | |
1111 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
1112 if (method->is_native()) { | |
1113 strcat(buf, "(Native Method)"); | |
1114 } else { | |
1115 int line_number = method->line_number_from_bci(bci); | |
1116 if (source_file_name != NULL && (line_number != -1)) { | |
1117 // Sourcename and linenumber | |
1118 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
1119 } else if (source_file_name != NULL) { | |
1120 // Just sourcename | |
1121 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
1122 } else { | |
1123 // Neither soucename and linenumber | |
1124 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
1125 } | |
1126 nmethod* nm = method->code(); | |
1127 if (WizardMode && nm != NULL) { | |
513
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parents:
242
diff
changeset
|
1128 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
0 | 1129 } |
1130 } | |
1131 | |
1132 return buf; | |
1133 } | |
1134 | |
1135 | |
1136 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
1137 ResourceMark rm; | |
1138 char* buf = print_stack_element_to_buffer(method, bci); | |
1139 print_to_stream(stream, buf); | |
1140 } | |
1141 | |
1142 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
1143 ResourceMark rm; | |
1144 char* buf = print_stack_element_to_buffer(method, bci); | |
1145 st->print_cr("%s", buf); | |
1146 } | |
1147 | |
1148 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
1149 if (stream.is_null()) { | |
1150 tty->print_cr("%s", str); | |
1151 } else { | |
1152 EXCEPTION_MARK; | |
1153 JavaValue result(T_VOID); | |
1154 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
1155 if (!HAS_PENDING_EXCEPTION) { | |
1156 JavaCalls::call_virtual(&result, | |
1157 stream, | |
1158 KlassHandle(THREAD, stream->klass()), | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
1159 vmSymbols::println_name(), |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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1989
diff
changeset
|
1160 vmSymbols::char_array_void_signature(), |
0 | 1161 arg, |
1162 THREAD); | |
1163 } | |
1164 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1165 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
1166 } | |
1167 | |
1168 } | |
1169 | |
1170 | |
1171 const char* java_lang_Throwable::no_stack_trace_message() { | |
1172 return "\t<<no stack trace available>>"; | |
1173 } | |
1174 | |
1175 | |
1176 // Currently used only for exceptions occurring during startup | |
1177 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
1178 Thread *THREAD = Thread::current(); | |
1179 Handle h_throwable(THREAD, throwable); | |
1180 while (h_throwable.not_null()) { | |
1181 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
1182 if (result.is_null()) { | |
1183 st->print_cr(no_stack_trace_message()); | |
1184 return; | |
1185 } | |
1186 | |
1187 while (result.not_null()) { | |
1188 objArrayHandle methods (THREAD, | |
1189 objArrayOop(result->obj_at(trace_methods_offset))); | |
1190 typeArrayHandle bcis (THREAD, | |
1191 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1192 | |
1193 if (methods.is_null() || bcis.is_null()) { | |
1194 st->print_cr(no_stack_trace_message()); | |
1195 return; | |
1196 } | |
1197 | |
1198 int length = methods()->length(); | |
1199 for (int index = 0; index < length; index++) { | |
1200 methodOop method = methodOop(methods()->obj_at(index)); | |
1201 if (method == NULL) goto handle_cause; | |
1202 int bci = bcis->ushort_at(index); | |
1203 print_stack_element(st, method, bci); | |
1204 } | |
1205 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
1206 } | |
1207 handle_cause: | |
1208 { | |
1209 EXCEPTION_MARK; | |
1210 JavaValue result(T_OBJECT); | |
1211 JavaCalls::call_virtual(&result, | |
1212 h_throwable, | |
1213 KlassHandle(THREAD, h_throwable->klass()), | |
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|
1214 vmSymbols::getCause_name(), |
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1215 vmSymbols::void_throwable_signature(), |
0 | 1216 THREAD); |
1217 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
1218 if (HAS_PENDING_EXCEPTION) { | |
1219 CLEAR_PENDING_EXCEPTION; | |
1220 h_throwable = Handle(); | |
1221 } else { | |
1222 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
1223 if (h_throwable.not_null()) { | |
1224 st->print("Caused by: "); | |
1225 print(h_throwable, st); | |
1226 st->cr(); | |
1227 } | |
1228 } | |
1229 } | |
1230 } | |
1231 } | |
1232 | |
1233 | |
1234 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
1235 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
1236 Thread *thread = Thread::current(); | |
1237 Handle stream(thread, print_stream); | |
1238 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
1239 if (result.is_null()) { | |
1240 print_to_stream(stream, no_stack_trace_message()); | |
1241 return; | |
1242 } | |
1243 | |
1244 while (result.not_null()) { | |
1245 objArrayHandle methods (thread, | |
1246 objArrayOop(result->obj_at(trace_methods_offset))); | |
1247 typeArrayHandle bcis (thread, | |
1248 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
1249 | |
1250 if (methods.is_null() || bcis.is_null()) { | |
1251 print_to_stream(stream, no_stack_trace_message()); | |
1252 return; | |
1253 } | |
1254 | |
1255 int length = methods()->length(); | |
1256 for (int index = 0; index < length; index++) { | |
1257 methodOop method = methodOop(methods()->obj_at(index)); | |
1258 if (method == NULL) return; | |
1259 int bci = bcis->ushort_at(index); | |
1260 print_stack_element(stream, method, bci); | |
1261 } | |
1262 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
1263 } | |
1264 } | |
1265 | |
1266 // This class provides a simple wrapper over the internal structure of | |
1267 // exception backtrace to insulate users of the backtrace from needing | |
1268 // to know what it looks like. | |
1269 class BacktraceBuilder: public StackObj { | |
1270 private: | |
1271 Handle _backtrace; | |
1272 objArrayOop _head; | |
1273 objArrayOop _methods; | |
1274 typeArrayOop _bcis; | |
1275 int _index; | |
1276 No_Safepoint_Verifier _nsv; | |
1277 | |
1278 public: | |
1279 | |
1280 enum { | |
1281 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
1282 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
1283 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
1284 trace_size = java_lang_Throwable::trace_size, | |
1285 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
1286 }; | |
1287 | |
1288 // constructor for new backtrace | |
3770
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1289 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
0 | 1290 expand(CHECK); |
1291 _backtrace = _head; | |
1292 _index = 0; | |
1293 } | |
1294 | |
1295 void expand(TRAPS) { | |
1296 objArrayHandle old_head(THREAD, _head); | |
1297 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
1298 | |
1299 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
1300 objArrayHandle new_head(THREAD, head); | |
1301 | |
1302 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1303 objArrayHandle new_methods(THREAD, methods); | |
1304 | |
1305 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1306 typeArrayHandle new_bcis(THREAD, bcis); | |
1307 | |
1308 if (!old_head.is_null()) { | |
1309 old_head->obj_at_put(trace_next_offset, new_head()); | |
1310 } | |
1311 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
1312 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
1313 | |
1314 _head = new_head(); | |
1315 _methods = new_methods(); | |
1316 _bcis = new_bcis(); | |
1317 _index = 0; | |
1318 } | |
1319 | |
1320 oop backtrace() { | |
1321 return _backtrace(); | |
1322 } | |
1323 | |
1324 inline void push(methodOop method, short bci, TRAPS) { | |
1325 if (_index >= trace_chunk_size) { | |
1326 methodHandle mhandle(THREAD, method); | |
1327 expand(CHECK); | |
1328 method = mhandle(); | |
1329 } | |
1330 | |
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diff
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|
1331 _methods->obj_at_put(_index, method); |
0 | 1332 _bcis->ushort_at_put(_index, bci); |
1333 _index++; | |
1334 } | |
1335 | |
1336 methodOop current_method() { | |
1337 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1338 return methodOop(_methods->obj_at(_index)); | |
1339 } | |
1340 | |
1341 jushort current_bci() { | |
1342 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
1343 return _bcis->ushort_at(_index); | |
1344 } | |
1345 }; | |
1346 | |
1347 | |
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1348 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
0 | 1349 if (!StackTraceInThrowable) return; |
1350 ResourceMark rm(THREAD); | |
1351 | |
1352 // Start out by clearing the backtrace for this object, in case the VM | |
1353 // runs out of memory while allocating the stack trace | |
1354 set_backtrace(throwable(), NULL); | |
1355 if (JDK_Version::is_gte_jdk14x_version()) { | |
1356 // New since 1.4, clear lazily constructed Java level stacktrace if | |
1357 // refilling occurs | |
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3795
diff
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1358 // This is unnecessary in 1.7+ but harmless |
0 | 1359 clear_stacktrace(throwable()); |
1360 } | |
1361 | |
1362 int max_depth = MaxJavaStackTraceDepth; | |
1363 JavaThread* thread = (JavaThread*)THREAD; | |
1364 BacktraceBuilder bt(CHECK); | |
1365 | |
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1366 // If there is no Java frame just return the method that was being called |
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7009923: JSR 292: VM crash in JavaThread::last_frame
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1367 // with bci 0 |
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1368 if (!thread->has_last_Java_frame()) { |
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1369 if (max_depth >= 1 && method() != NULL) { |
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1370 bt.push(method(), 0, CHECK); |
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1371 set_backtrace(throwable(), bt.backtrace()); |
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|
1372 } |
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|
1373 return; |
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|
1374 } |
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|
1375 |
0 | 1376 // Instead of using vframe directly, this version of fill_in_stack_trace |
1377 // basically handles everything by hand. This significantly improved the | |
1378 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
1379 // See bug 6333838 for more details. | |
1380 // The "ASSERT" here is to verify this method generates the exactly same stack | |
1381 // trace as utilizing vframe. | |
1382 #ifdef ASSERT | |
1383 vframeStream st(thread); | |
1384 methodHandle st_method(THREAD, st.method()); | |
1385 #endif | |
1386 int total_count = 0; | |
1387 RegisterMap map(thread, false); | |
1388 int decode_offset = 0; | |
1389 nmethod* nm = NULL; | |
1390 bool skip_fillInStackTrace_check = false; | |
1391 bool skip_throwableInit_check = false; | |
1392 | |
1393 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
1394 methodOop method = NULL; | |
1395 int bci = 0; | |
1396 | |
1397 // Compiled java method case. | |
1398 if (decode_offset != 0) { | |
1399 DebugInfoReadStream stream(nm, decode_offset); | |
1400 decode_offset = stream.read_int(); | |
1401 method = (methodOop)nm->oop_at(stream.read_int()); | |
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diff
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|
1402 bci = stream.read_bci(); |
0 | 1403 } else { |
1404 if (fr.is_first_frame()) break; | |
1405 address pc = fr.pc(); | |
1406 if (fr.is_interpreted_frame()) { | |
1407 intptr_t bcx = fr.interpreter_frame_bcx(); | |
1408 method = fr.interpreter_frame_method(); | |
1409 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
1410 fr = fr.sender(&map); | |
1411 } else { | |
1412 CodeBlob* cb = fr.cb(); | |
1413 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
1414 // but non nmethod | |
1415 fr = fr.sender(&map); | |
1416 if (cb == NULL || !cb->is_nmethod()) { | |
1417 continue; | |
1418 } | |
1419 nm = (nmethod*)cb; | |
1420 if (nm->method()->is_native()) { | |
1421 method = nm->method(); | |
1422 bci = 0; | |
1423 } else { | |
1424 PcDesc* pd = nm->pc_desc_at(pc); | |
1425 decode_offset = pd->scope_decode_offset(); | |
1426 // if decode_offset is not equal to 0, it will execute the | |
1427 // "compiled java method case" at the beginning of the loop. | |
1428 continue; | |
1429 } | |
1430 } | |
1431 } | |
1432 #ifdef ASSERT | |
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6a615eae2f34
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diff
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1433 assert(st_method() == method && st.bci() == bci, |
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2379
diff
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|
1434 "Wrong stack trace"); |
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2379
diff
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|
1435 st.next(); |
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diff
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|
1436 // vframeStream::method isn't GC-safe so store off a copy |
6a615eae2f34
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diff
changeset
|
1437 // of the methodOop in case we GC. |
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diff
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|
1438 if (!st.at_end()) { |
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diff
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|
1439 st_method = st.method(); |
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|
1440 } |
0 | 1441 #endif |
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|
1442 |
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|
1443 // the format of the stacktrace will be: |
6a615eae2f34
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diff
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|
1444 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
6a615eae2f34
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diff
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|
1445 // - 0 or more <init> methods for the exception class (skipped) |
6a615eae2f34
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diff
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|
1446 // - rest of the stack |
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diff
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|
1447 |
0 | 1448 if (!skip_fillInStackTrace_check) { |
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diff
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|
1449 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
6a615eae2f34
7034585: Adjust fillInStackTrace filtering to assist 6998871
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diff
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|
1450 method->name() == vmSymbols::fillInStackTrace0_name()) && |
6a615eae2f34
7034585: Adjust fillInStackTrace filtering to assist 6998871
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diff
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|
1451 throwable->is_a(method->method_holder())) { |
0 | 1452 continue; |
1453 } | |
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diff
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|
1454 else { |
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diff
changeset
|
1455 skip_fillInStackTrace_check = true; // gone past them all |
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diff
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|
1456 } |
0 | 1457 } |
1458 if (!skip_throwableInit_check) { | |
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2379
diff
changeset
|
1459 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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diff
changeset
|
1460 |
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diff
changeset
|
1461 // skip <init> methods of the exception class and superclasses |
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diff
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|
1462 // This is simlar to classic VM. |
0 | 1463 if (method->name() == vmSymbols::object_initializer_name() && |
1464 throwable->is_a(method->method_holder())) { | |
1465 continue; | |
1466 } else { | |
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diff
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|
1467 // there are none or we've seen them all - either way stop checking |
0 | 1468 skip_throwableInit_check = true; |
1469 } | |
1470 } | |
1471 bt.push(method, bci, CHECK); | |
1472 total_count++; | |
1473 } | |
1474 | |
1475 // Put completed stack trace into throwable object | |
1476 set_backtrace(throwable(), bt.backtrace()); | |
1477 } | |
1478 | |
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2477
diff
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|
1479 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
0 | 1480 // No-op if stack trace is disabled |
1481 if (!StackTraceInThrowable) { | |
1482 return; | |
1483 } | |
1484 | |
1485 // Disable stack traces for some preallocated out of memory errors | |
1486 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
1487 return; | |
1488 } | |
1489 | |
1490 PRESERVE_EXCEPTION_MARK; | |
1491 | |
1492 JavaThread* thread = JavaThread::active(); | |
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1493 fill_in_stack_trace(throwable, method, thread); |
0 | 1494 // ignore exceptions thrown during stack trace filling |
1495 CLEAR_PENDING_EXCEPTION; | |
1496 } | |
1497 | |
1498 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
1499 // Allocate stack trace - backtrace is created but not filled in | |
1500 | |
1501 // No-op if stack trace is disabled | |
1502 if (!StackTraceInThrowable) return; | |
1503 | |
1504 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
1505 objArrayHandle backtrace (THREAD, h_oop); | |
1506 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
1507 objArrayHandle methods (THREAD, m_oop); | |
1508 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
1509 typeArrayHandle bcis(THREAD, b); | |
1510 | |
1511 // backtrace has space for one chunk (next is NULL) | |
1512 backtrace->obj_at_put(trace_methods_offset, methods()); | |
1513 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
1514 set_backtrace(throwable(), backtrace()); | |
1515 } | |
1516 | |
1517 | |
1518 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
1519 // Fill in stack trace into preallocated backtrace (no GC) | |
1520 | |
1521 // No-op if stack trace is disabled | |
1522 if (!StackTraceInThrowable) return; | |
1523 | |
1142 | 1524 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
0 | 1525 |
1526 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
1527 assert(backtrace != NULL, "backtrace not preallocated"); | |
1528 | |
1529 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
1530 objArrayOop methods = objArrayOop(m); | |
1531 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
1532 | |
1533 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
1534 typeArrayOop bcis = typeArrayOop(b); | |
1535 assert(bcis != NULL, "bci array not preallocated"); | |
1536 | |
1537 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
1538 | |
1539 JavaThread* thread = JavaThread::current(); | |
1540 ResourceMark rm(thread); | |
1541 vframeStream st(thread); | |
1542 | |
1543 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
1544 // methods as preallocated errors aren't created by "java" code. | |
1545 | |
1546 // fill in as much stack trace as possible | |
1547 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
1548 int chunk_count = 0; | |
1549 | |
1550 for (;!st.at_end(); st.next()) { | |
1551 // add element | |
1552 bcis->ushort_at_put(chunk_count, st.bci()); | |
1553 methods->obj_at_put(chunk_count, st.method()); | |
1554 | |
1555 chunk_count++; | |
1556 | |
1557 // Bail-out for deep stacks | |
1558 if (chunk_count >= max_chunks) break; | |
1559 } | |
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1560 |
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1561 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1562 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1563 // can be removed in a JDK using this JVM version |
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1564 if (JDK_Version::is_gte_jdk17x_version()) { |
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1565 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1566 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1567 } |
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1568 |
0 | 1569 } |
1570 | |
1571 | |
1572 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
1573 if (throwable == NULL) { | |
1574 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1575 } | |
1576 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1577 int depth = 0; | |
1578 if (chunk != NULL) { | |
1579 // Iterate over chunks and count full ones | |
1580 while (true) { | |
1581 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1582 if (next == NULL) break; | |
1583 depth += trace_chunk_size; | |
1584 chunk = next; | |
1585 } | |
1586 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
1587 // Count element in remaining partial chunk | |
1588 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1589 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1590 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1591 for (int i = 0; i < methods->length(); i++) { | |
1592 if (methods->obj_at(i) == NULL) break; | |
1593 depth++; | |
1594 } | |
1595 } | |
1596 return depth; | |
1597 } | |
1598 | |
1599 | |
1600 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
1601 if (throwable == NULL) { | |
1602 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
1603 } | |
1604 if (index < 0) { | |
1605 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1606 } | |
1607 // Compute how many chunks to skip and index into actual chunk | |
1608 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
1609 int skip_chunks = index / trace_chunk_size; | |
1610 int chunk_index = index % trace_chunk_size; | |
1611 while (chunk != NULL && skip_chunks > 0) { | |
1612 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
1613 skip_chunks--; | |
1614 } | |
1615 if (chunk == NULL) { | |
1616 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1617 } | |
1618 // Get method,bci from chunk | |
1619 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
1620 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
1621 assert(methods != NULL && bcis != NULL, "sanity check"); | |
1622 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
1623 int bci = bcis->ushort_at(chunk_index); | |
1624 // Chunk can be partial full | |
1625 if (method.is_null()) { | |
1626 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
1627 } | |
1628 | |
1629 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
1630 return element; | |
1631 } | |
1632 | |
1633 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
1634 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
1635 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
1636 | |
1637 // Allocate java.lang.StackTraceElement instance | |
1142 | 1638 klassOop k = SystemDictionary::StackTraceElement_klass(); |
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1639 assert(k != NULL, "must be loaded in 1.4+"); |
0 | 1640 instanceKlassHandle ik (THREAD, k); |
1641 if (ik->should_be_initialized()) { | |
1642 ik->initialize(CHECK_0); | |
1643 } | |
1644 | |
1645 Handle element = ik->allocate_instance_handle(CHECK_0); | |
1646 // Fill in class name | |
1647 ResourceMark rm(THREAD); | |
1648 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
1649 oop classname = StringTable::intern((char*) str, CHECK_0); | |
1650 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
1651 // Fill in method name | |
1652 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
1653 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
1654 // Fill in source file name | |
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1655 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
0 | 1656 oop filename = StringTable::intern(source, CHECK_0); |
1657 java_lang_StackTraceElement::set_fileName(element(), filename); | |
1658 // File in source line number | |
1659 int line_number; | |
1660 if (method->is_native()) { | |
1661 // Negative value different from -1 below, enabling Java code in | |
1662 // class java.lang.StackTraceElement to distinguish "native" from | |
1663 // "no LineNumberTable". | |
1664 line_number = -2; | |
1665 } else { | |
1666 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
1667 line_number = method->line_number_from_bci(bci); | |
1668 } | |
1669 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
1670 | |
1671 return element(); | |
1672 } | |
1673 | |
1674 | |
1675 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
1142 | 1676 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
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1677 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
0 | 1678 } |
1679 | |
1680 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
1681 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1682 return (jboolean) reflect->bool_field(override_offset); | |
1683 } | |
1684 | |
1685 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
1686 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1687 reflect->bool_field_put(override_offset, (int) value); | |
1688 } | |
1689 | |
1690 void java_lang_reflect_Method::compute_offsets() { | |
1142 | 1691 klassOop k = SystemDictionary::reflect_Method_klass(); |
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1692 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1693 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1694 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1695 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1696 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1697 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1698 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1699 // The generic signature and annotations fields are only present in 1.5 |
1700 signature_offset = -1; | |
1701 annotations_offset = -1; | |
1702 parameter_annotations_offset = -1; | |
1703 annotation_default_offset = -1; | |
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1704 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1705 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1706 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1707 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
0 | 1708 } |
1709 | |
1710 Handle java_lang_reflect_Method::create(TRAPS) { | |
1711 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 1712 klassOop klass = SystemDictionary::reflect_Method_klass(); |
0 | 1713 // This class is eagerly initialized during VM initialization, since we keep a refence |
1714 // to one of the methods | |
1715 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
1716 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
1717 } | |
1718 | |
1719 oop java_lang_reflect_Method::clazz(oop reflect) { | |
1720 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1721 return reflect->obj_field(clazz_offset); | |
1722 } | |
1723 | |
1724 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1726 reflect->obj_field_put(clazz_offset, value); | |
1727 } | |
1728 | |
1729 int java_lang_reflect_Method::slot(oop reflect) { | |
1730 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1731 return reflect->int_field(slot_offset); | |
1732 } | |
1733 | |
1734 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1736 reflect->int_field_put(slot_offset, value); | |
1737 } | |
1738 | |
1739 oop java_lang_reflect_Method::name(oop method) { | |
1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1741 return method->obj_field(name_offset); | |
1742 } | |
1743 | |
1744 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1746 method->obj_field_put(name_offset, value); | |
1747 } | |
1748 | |
1749 oop java_lang_reflect_Method::return_type(oop method) { | |
1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1751 return method->obj_field(returnType_offset); | |
1752 } | |
1753 | |
1754 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
1755 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1756 method->obj_field_put(returnType_offset, value); | |
1757 } | |
1758 | |
1759 oop java_lang_reflect_Method::parameter_types(oop method) { | |
1760 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1761 return method->obj_field(parameterTypes_offset); | |
1762 } | |
1763 | |
1764 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
1765 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1766 method->obj_field_put(parameterTypes_offset, value); | |
1767 } | |
1768 | |
1769 oop java_lang_reflect_Method::exception_types(oop method) { | |
1770 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1771 return method->obj_field(exceptionTypes_offset); | |
1772 } | |
1773 | |
1774 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1776 method->obj_field_put(exceptionTypes_offset, value); | |
1777 } | |
1778 | |
1779 int java_lang_reflect_Method::modifiers(oop method) { | |
1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1781 return method->int_field(modifiers_offset); | |
1782 } | |
1783 | |
1784 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1786 method->int_field_put(modifiers_offset, value); | |
1787 } | |
1788 | |
1789 bool java_lang_reflect_Method::has_signature_field() { | |
1790 return (signature_offset >= 0); | |
1791 } | |
1792 | |
1793 oop java_lang_reflect_Method::signature(oop method) { | |
1794 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1795 assert(has_signature_field(), "signature field must be present"); | |
1796 return method->obj_field(signature_offset); | |
1797 } | |
1798 | |
1799 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
1800 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1801 assert(has_signature_field(), "signature field must be present"); | |
1802 method->obj_field_put(signature_offset, value); | |
1803 } | |
1804 | |
1805 bool java_lang_reflect_Method::has_annotations_field() { | |
1806 return (annotations_offset >= 0); | |
1807 } | |
1808 | |
1809 oop java_lang_reflect_Method::annotations(oop method) { | |
1810 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1811 assert(has_annotations_field(), "annotations field must be present"); | |
1812 return method->obj_field(annotations_offset); | |
1813 } | |
1814 | |
1815 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
1816 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1817 assert(has_annotations_field(), "annotations field must be present"); | |
1818 method->obj_field_put(annotations_offset, value); | |
1819 } | |
1820 | |
1821 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
1822 return (parameter_annotations_offset >= 0); | |
1823 } | |
1824 | |
1825 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
1826 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1827 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1828 return method->obj_field(parameter_annotations_offset); | |
1829 } | |
1830 | |
1831 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
1832 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1833 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1834 method->obj_field_put(parameter_annotations_offset, value); | |
1835 } | |
1836 | |
1837 bool java_lang_reflect_Method::has_annotation_default_field() { | |
1838 return (annotation_default_offset >= 0); | |
1839 } | |
1840 | |
1841 oop java_lang_reflect_Method::annotation_default(oop method) { | |
1842 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1843 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1844 return method->obj_field(annotation_default_offset); | |
1845 } | |
1846 | |
1847 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
1848 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1849 assert(has_annotation_default_field(), "annotation default field must be present"); | |
1850 method->obj_field_put(annotation_default_offset, value); | |
1851 } | |
1852 | |
1853 void java_lang_reflect_Constructor::compute_offsets() { | |
1142 | 1854 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
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1855 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1856 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1857 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1858 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1859 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1860 // The generic signature and annotations fields are only present in 1.5 |
1861 signature_offset = -1; | |
1862 annotations_offset = -1; | |
1863 parameter_annotations_offset = -1; | |
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1864 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1865 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1866 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1867 } |
1868 | |
1869 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
1870 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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1871 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
0 | 1872 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1873 instanceKlassHandle klass (THREAD, k); | |
1874 // Ensure it is initialized | |
1875 klass->initialize(CHECK_NH); | |
1876 return klass->allocate_instance_handle(CHECK_NH); | |
1877 } | |
1878 | |
1879 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
1880 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1881 return reflect->obj_field(clazz_offset); | |
1882 } | |
1883 | |
1884 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1886 reflect->obj_field_put(clazz_offset, value); | |
1887 } | |
1888 | |
1889 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1891 return constructor->obj_field(parameterTypes_offset); | |
1892 } | |
1893 | |
1894 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1896 constructor->obj_field_put(parameterTypes_offset, value); | |
1897 } | |
1898 | |
1899 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1901 return constructor->obj_field(exceptionTypes_offset); | |
1902 } | |
1903 | |
1904 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1906 constructor->obj_field_put(exceptionTypes_offset, value); | |
1907 } | |
1908 | |
1909 int java_lang_reflect_Constructor::slot(oop reflect) { | |
1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1911 return reflect->int_field(slot_offset); | |
1912 } | |
1913 | |
1914 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1916 reflect->int_field_put(slot_offset, value); | |
1917 } | |
1918 | |
1919 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1921 return constructor->int_field(modifiers_offset); | |
1922 } | |
1923 | |
1924 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1926 constructor->int_field_put(modifiers_offset, value); | |
1927 } | |
1928 | |
1929 bool java_lang_reflect_Constructor::has_signature_field() { | |
1930 return (signature_offset >= 0); | |
1931 } | |
1932 | |
1933 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
1934 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1935 assert(has_signature_field(), "signature field must be present"); | |
1936 return constructor->obj_field(signature_offset); | |
1937 } | |
1938 | |
1939 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1941 assert(has_signature_field(), "signature field must be present"); | |
1942 constructor->obj_field_put(signature_offset, value); | |
1943 } | |
1944 | |
1945 bool java_lang_reflect_Constructor::has_annotations_field() { | |
1946 return (annotations_offset >= 0); | |
1947 } | |
1948 | |
1949 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
1950 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1951 assert(has_annotations_field(), "annotations field must be present"); | |
1952 return constructor->obj_field(annotations_offset); | |
1953 } | |
1954 | |
1955 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
1956 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1957 assert(has_annotations_field(), "annotations field must be present"); | |
1958 constructor->obj_field_put(annotations_offset, value); | |
1959 } | |
1960 | |
1961 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
1962 return (parameter_annotations_offset >= 0); | |
1963 } | |
1964 | |
1965 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
1966 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1967 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1968 return method->obj_field(parameter_annotations_offset); | |
1969 } | |
1970 | |
1971 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
1972 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1973 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
1974 method->obj_field_put(parameter_annotations_offset, value); | |
1975 } | |
1976 | |
1977 void java_lang_reflect_Field::compute_offsets() { | |
1142 | 1978 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1979 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1980 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1981 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1982 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1983 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
0 | 1984 // The generic signature and annotations fields are only present in 1.5 |
1985 signature_offset = -1; | |
1986 annotations_offset = -1; | |
132
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1987 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1988 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
0 | 1989 } |
1990 | |
1991 Handle java_lang_reflect_Field::create(TRAPS) { | |
1992 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2177
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1993 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
0 | 1994 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
1995 instanceKlassHandle klass (THREAD, k); | |
1996 // Ensure it is initialized | |
1997 klass->initialize(CHECK_NH); | |
1998 return klass->allocate_instance_handle(CHECK_NH); | |
1999 } | |
2000 | |
2001 oop java_lang_reflect_Field::clazz(oop reflect) { | |
2002 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2003 return reflect->obj_field(clazz_offset); | |
2004 } | |
2005 | |
2006 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
2007 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2008 reflect->obj_field_put(clazz_offset, value); | |
2009 } | |
2010 | |
2011 oop java_lang_reflect_Field::name(oop field) { | |
2012 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2013 return field->obj_field(name_offset); | |
2014 } | |
2015 | |
2016 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
2017 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2018 field->obj_field_put(name_offset, value); | |
2019 } | |
2020 | |
2021 oop java_lang_reflect_Field::type(oop field) { | |
2022 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2023 return field->obj_field(type_offset); | |
2024 } | |
2025 | |
2026 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
2027 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2028 field->obj_field_put(type_offset, value); | |
2029 } | |
2030 | |
2031 int java_lang_reflect_Field::slot(oop reflect) { | |
2032 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2033 return reflect->int_field(slot_offset); | |
2034 } | |
2035 | |
2036 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2038 reflect->int_field_put(slot_offset, value); | |
2039 } | |
2040 | |
2041 int java_lang_reflect_Field::modifiers(oop field) { | |
2042 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2043 return field->int_field(modifiers_offset); | |
2044 } | |
2045 | |
2046 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2048 field->int_field_put(modifiers_offset, value); | |
2049 } | |
2050 | |
2051 bool java_lang_reflect_Field::has_signature_field() { | |
2052 return (signature_offset >= 0); | |
2053 } | |
2054 | |
2055 oop java_lang_reflect_Field::signature(oop field) { | |
2056 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2057 assert(has_signature_field(), "signature field must be present"); | |
2058 return field->obj_field(signature_offset); | |
2059 } | |
2060 | |
2061 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
2062 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2063 assert(has_signature_field(), "signature field must be present"); | |
2064 field->obj_field_put(signature_offset, value); | |
2065 } | |
2066 | |
2067 bool java_lang_reflect_Field::has_annotations_field() { | |
2068 return (annotations_offset >= 0); | |
2069 } | |
2070 | |
2071 oop java_lang_reflect_Field::annotations(oop field) { | |
2072 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2073 assert(has_annotations_field(), "annotations field must be present"); | |
2074 return field->obj_field(annotations_offset); | |
2075 } | |
2076 | |
2077 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
2078 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2079 assert(has_annotations_field(), "annotations field must be present"); | |
2080 field->obj_field_put(annotations_offset, value); | |
2081 } | |
2082 | |
2083 | |
2084 void sun_reflect_ConstantPool::compute_offsets() { | |
1142 | 2085 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2086 // This null test can be removed post beta |
2087 if (k != NULL) { | |
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2088 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
0 | 2089 } |
2090 } | |
2091 | |
2092 | |
2093 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
2094 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
1142 | 2095 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
0 | 2096 instanceKlassHandle klass (THREAD, k); |
2097 // Ensure it is initialized | |
2098 klass->initialize(CHECK_NH); | |
2099 return klass->allocate_instance_handle(CHECK_NH); | |
2100 } | |
2101 | |
2102 | |
2103 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
2104 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2105 return reflect->obj_field(_cp_oop_offset); | |
2106 } | |
2107 | |
2108 | |
2109 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
2110 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
2111 reflect->obj_field_put(_cp_oop_offset, value); | |
2112 } | |
2113 | |
2114 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
1142 | 2115 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
0 | 2116 // This null test can be removed post beta |
2117 if (k != NULL) { | |
132
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2118 compute_offset(_base_offset, k, |
0 | 2119 vmSymbols::base_name(), vmSymbols::object_signature()); |
2120 } | |
2121 } | |
2122 | |
132
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2123 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2124 klassOop k = SystemDictionary::box_klass(type); |
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2125 if (k == NULL) return NULL; |
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2126 instanceKlassHandle h (THREAD, k); |
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2127 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2128 return h->allocate_instance(THREAD); |
0 | 2129 } |
2130 | |
2131 | |
2132 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
132
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2133 oop box = initialize_and_allocate(type, CHECK_0); |
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2134 if (box == NULL) return NULL; |
0 | 2135 switch (type) { |
2136 case T_BOOLEAN: | |
2137 box->bool_field_put(value_offset, value->z); | |
2138 break; | |
2139 case T_CHAR: | |
2140 box->char_field_put(value_offset, value->c); | |
2141 break; | |
2142 case T_FLOAT: | |
2143 box->float_field_put(value_offset, value->f); | |
2144 break; | |
2145 case T_DOUBLE: | |
165
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2146 box->double_field_put(long_value_offset, value->d); |
0 | 2147 break; |
2148 case T_BYTE: | |
2149 box->byte_field_put(value_offset, value->b); | |
2150 break; | |
2151 case T_SHORT: | |
2152 box->short_field_put(value_offset, value->s); | |
2153 break; | |
2154 case T_INT: | |
2155 box->int_field_put(value_offset, value->i); | |
2156 break; | |
2157 case T_LONG: | |
165
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2158 box->long_field_put(long_value_offset, value->j); |
0 | 2159 break; |
2160 default: | |
2161 return NULL; | |
2162 } | |
2163 return box; | |
2164 } | |
2165 | |
2166 | |
132
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2167 BasicType java_lang_boxing_object::basic_type(oop box) { |
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2168 if (box == NULL) return T_ILLEGAL; |
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2169 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2170 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
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2171 return T_ILLEGAL; |
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2172 return type; |
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2173 } |
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2174 |
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2175 |
0 | 2176 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
132
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2177 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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2178 switch (type) { |
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2179 case T_BOOLEAN: |
0 | 2180 value->z = box->bool_field(value_offset); |
132
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2181 break; |
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2182 case T_CHAR: |
0 | 2183 value->c = box->char_field(value_offset); |
132
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2184 break; |
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2185 case T_FLOAT: |
0 | 2186 value->f = box->float_field(value_offset); |
132
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2187 break; |
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2188 case T_DOUBLE: |
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2189 value->d = box->double_field(long_value_offset); |
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2190 break; |
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2191 case T_BYTE: |
0 | 2192 value->b = box->byte_field(value_offset); |
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2193 break; |
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2194 case T_SHORT: |
0 | 2195 value->s = box->short_field(value_offset); |
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2196 break; |
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2197 case T_INT: |
0 | 2198 value->i = box->int_field(value_offset); |
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2199 break; |
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2200 case T_LONG: |
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2201 value->j = box->long_field(long_value_offset); |
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2202 break; |
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2203 default: |
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2204 return T_ILLEGAL; |
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2205 } // end switch |
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2206 return type; |
0 | 2207 } |
2208 | |
2209 | |
2210 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
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2211 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
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|
2212 switch (type) { |
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6652736: well known classes in system dictionary are inefficiently processed
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2213 case T_BOOLEAN: |
0 | 2214 box->bool_field_put(value_offset, value->z); |
132
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|
2215 break; |
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2216 case T_CHAR: |
0 | 2217 box->char_field_put(value_offset, value->c); |
132
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|
2218 break; |
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|
2219 case T_FLOAT: |
0 | 2220 box->float_field_put(value_offset, value->f); |
132
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|
2221 break; |
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|
2222 case T_DOUBLE: |
165
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2223 box->double_field_put(long_value_offset, value->d); |
132
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|
2224 break; |
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|
2225 case T_BYTE: |
0 | 2226 box->byte_field_put(value_offset, value->b); |
132
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|
2227 break; |
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|
2228 case T_SHORT: |
0 | 2229 box->short_field_put(value_offset, value->s); |
132
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|
2230 break; |
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|
2231 case T_INT: |
0 | 2232 box->int_field_put(value_offset, value->i); |
132
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|
2233 break; |
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|
2234 case T_LONG: |
165
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2235 box->long_field_put(long_value_offset, value->j); |
132
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|
2236 break; |
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|
2237 default: |
60b728ec77c1
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|
2238 return T_ILLEGAL; |
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|
2239 } // end switch |
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|
2240 return type; |
0 | 2241 } |
2242 | |
2243 | |
665
c89f86385056
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|
2244 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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|
2245 switch (type) { |
c89f86385056
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|
2246 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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|
2247 case T_CHAR: st->print("%d", value->c); break; |
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diff
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|
2248 case T_BYTE: st->print("%d", value->b); break; |
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diff
changeset
|
2249 case T_SHORT: st->print("%d", value->s); break; |
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|
2250 case T_INT: st->print("%d", value->i); break; |
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jrose
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diff
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|
2251 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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diff
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|
2252 case T_FLOAT: st->print("%f", value->f); break; |
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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diff
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|
2253 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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|
2254 default: st->print("type %d?", type); break; |
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diff
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|
2255 } |
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diff
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|
2256 } |
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|
2257 |
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|
2258 |
0 | 2259 // Support for java_lang_ref_Reference |
113
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|
2260 oop java_lang_ref_Reference::pending_list_lock() { |
1142 | 2261 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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|
2262 address addr = ik->static_field_addr(static_lock_offset); |
113
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|
2263 if (UseCompressedOops) { |
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|
2264 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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|
2265 } else { |
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|
2266 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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|
2267 } |
0 | 2268 } |
2269 | |
113
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|
2270 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
1142 | 2271 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
2376
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|
2272 address addr = ik->static_field_addr(static_pending_offset); |
113
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|
2273 // XXX This might not be HeapWord aligned, almost rather be char *. |
ba764ed4b6f2
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|
2274 return (HeapWord*)addr; |
0 | 2275 } |
2276 | |
113
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|
2277 oop java_lang_ref_Reference::pending_list() { |
ba764ed4b6f2
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|
2278 char *addr = (char *)pending_list_addr(); |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
diff
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|
2279 if (UseCompressedOops) { |
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|
2280 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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|
2281 } else { |
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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diff
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|
2282 return oopDesc::load_decode_heap_oop((oop*)addr); |
ba764ed4b6f2
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98
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|
2283 } |
0 | 2284 } |
2285 | |
2286 | |
2287 // Support for java_lang_ref_SoftReference | |
2288 | |
2289 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
2290 return ref->long_field(timestamp_offset); | |
2291 } | |
2292 | |
2293 jlong java_lang_ref_SoftReference::clock() { | |
1142 | 2294 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2295 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2296 return *offset; |
0 | 2297 } |
2298 | |
2299 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
1142 | 2300 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2301 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
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|
2302 *offset = value; |
0 | 2303 } |
2304 | |
2305 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2306 // Support for java_lang_invoke_MethodHandle |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2307 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
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|
2308 int java_lang_invoke_MethodHandle::_type_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2309 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
|
2310 int java_lang_invoke_MethodHandle::_vmentry_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2311 int java_lang_invoke_MethodHandle::_vmslots_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2312 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2313 int java_lang_invoke_MemberName::_clazz_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2314 int java_lang_invoke_MemberName::_name_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2315 int java_lang_invoke_MemberName::_type_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2316 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
|
2317 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
|
2318 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
|
2319 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2320 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
|
2321 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2322 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
|
2323 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2324 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2325 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
|
2326 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2327 void java_lang_invoke_MethodHandle::compute_offsets() { |
710 | 2328 klassOop k = SystemDictionary::MethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
changeset
|
2329 if (k != NULL && EnableInvokeDynamic) { |
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
jrose
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2177
diff
changeset
|
2330 bool allow_super = false; |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2331 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2332 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
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|
2333 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
710 | 2334 |
2335 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
2336 // It is optional pending experiments to keep or toss. | |
2356
72dee110246f
6839872: remove implementation inheritance from JSR 292 APIs
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2177
diff
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|
2337 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
710 | 2338 } |
2339 } | |
2340 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2341 void java_lang_invoke_MemberName::compute_offsets() { |
710 | 2342 klassOop k = SystemDictionary::MemberName_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
2343 if (k != NULL && EnableInvokeDynamic) { |
710 | 2344 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
2345 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
2346 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
2347 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
2348 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
2349 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
2350 } | |
2351 } | |
2352 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2353 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
710 | 2354 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
changeset
|
2355 if (k != NULL && EnableInvokeDynamic) { |
710 | 2356 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); |
2357 } | |
2358 } | |
2359 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2360 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
710 | 2361 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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2379
diff
changeset
|
2362 if (k != NULL && EnableInvokeDynamic) { |
710 | 2363 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
2364 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
2365 } | |
2366 } | |
2367 | |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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2356
diff
changeset
|
2368 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
710 | 2369 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
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2379
diff
changeset
|
2370 if (k != NULL && EnableInvokeDynamic) { |
710 | 2371 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
2372 } | |
2373 } | |
2374 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2375 oop java_lang_invoke_MethodHandle::type(oop mh) { |
710 | 2376 return mh->obj_field(_type_offset); |
2377 } | |
2378 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2379 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
710 | 2380 mh->obj_field_put(_type_offset, mtype); |
2381 } | |
2382 | |
2357
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2383 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
710 | 2384 int vmslots_offset = _vmslots_offset; |
2385 if (vmslots_offset != 0) { | |
2386 #ifdef ASSERT | |
2387 int x = mh->int_field(vmslots_offset); | |
2388 int y = compute_vmslots(mh); | |
2389 assert(x == y, "correct hoisted value"); | |
2390 #endif | |
2391 return mh->int_field(vmslots_offset); | |
2392 } else { | |
2393 return compute_vmslots(mh); | |
2394 } | |
2395 } | |
2396 | |
2397 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
2357
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diff
changeset
|
2398 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
710 | 2399 int vmslots_offset = _vmslots_offset; |
2400 if (vmslots_offset != 0) { | |
2401 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
2402 } | |
2403 } | |
2404 | |
2405 // fetch type.form.vmslots, which is the number of JVM stack slots | |
2406 // required to carry the arguments of this MH | |
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2407 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
710 | 2408 oop mtype = type(mh); |
2409 if (mtype == NULL) return 0; // Java code would get NPE | |
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2410 oop form = java_lang_invoke_MethodType::form(mtype); |
710 | 2411 if (form == NULL) return 0; // Java code would get NPE |
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2412 return java_lang_invoke_MethodTypeForm::vmslots(form); |
710 | 2413 } |
2414 | |
2415 // fetch the low-level entry point for this mh | |
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2416 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
710 | 2417 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
2418 } | |
2419 | |
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2420 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
710 | 2421 assert(_vmentry_offset != 0, "must be present"); |
2422 | |
2423 // This is always the final step that initializes a valid method handle: | |
2424 mh->release_address_field_put(_vmentry_offset, (address) me); | |
2425 | |
2426 // There should be enough memory barriers on exit from native methods | |
2427 // to ensure that the MH is fully initialized to all threads before | |
2428 // Java code can publish it in global data structures. | |
2429 // But just in case, we use release_address_field_put. | |
2430 } | |
2431 | |
2432 /// MemberName accessors | |
2433 | |
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2434 oop java_lang_invoke_MemberName::clazz(oop mname) { |
710 | 2435 assert(is_instance(mname), "wrong type"); |
2436 return mname->obj_field(_clazz_offset); | |
2437 } | |
2438 | |
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2439 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
710 | 2440 assert(is_instance(mname), "wrong type"); |
2441 mname->obj_field_put(_clazz_offset, clazz); | |
2442 } | |
2443 | |
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2444 oop java_lang_invoke_MemberName::name(oop mname) { |
710 | 2445 assert(is_instance(mname), "wrong type"); |
2446 return mname->obj_field(_name_offset); | |
2447 } | |
2448 | |
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2449 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
710 | 2450 assert(is_instance(mname), "wrong type"); |
2451 mname->obj_field_put(_name_offset, name); | |
2452 } | |
2453 | |
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2454 oop java_lang_invoke_MemberName::type(oop mname) { |
710 | 2455 assert(is_instance(mname), "wrong type"); |
2456 return mname->obj_field(_type_offset); | |
2457 } | |
2458 | |
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2459 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
710 | 2460 assert(is_instance(mname), "wrong type"); |
2461 mname->obj_field_put(_type_offset, type); | |
2462 } | |
2463 | |
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2464 int java_lang_invoke_MemberName::flags(oop mname) { |
710 | 2465 assert(is_instance(mname), "wrong type"); |
2466 return mname->int_field(_flags_offset); | |
2467 } | |
2468 | |
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2469 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
710 | 2470 assert(is_instance(mname), "wrong type"); |
2471 mname->int_field_put(_flags_offset, flags); | |
2472 } | |
2473 | |
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2474 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
710 | 2475 assert(is_instance(mname), "wrong type"); |
2476 return mname->obj_field(_vmtarget_offset); | |
2477 } | |
2478 | |
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2479 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
710 | 2480 assert(is_instance(mname), "wrong type"); |
2481 mname->obj_field_put(_vmtarget_offset, ref); | |
2482 } | |
2483 | |
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2484 int java_lang_invoke_MemberName::vmindex(oop mname) { |
710 | 2485 assert(is_instance(mname), "wrong type"); |
2486 return mname->int_field(_vmindex_offset); | |
2487 } | |
2488 | |
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2489 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
710 | 2490 assert(is_instance(mname), "wrong type"); |
2491 mname->int_field_put(_vmindex_offset, index); | |
2492 } | |
2493 | |
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2494 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
710 | 2495 assert(is_instance(mh), "MH only"); |
2496 return mh->obj_field(_vmtarget_offset); | |
2497 } | |
2498 | |
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2499 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
710 | 2500 assert(is_instance(mh), "MH only"); |
2501 mh->obj_field_put(_vmtarget_offset, ref); | |
2502 } | |
2503 | |
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2504 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
710 | 2505 assert(is_instance(mh), "DMH only"); |
2506 return mh->int_field(_vmindex_offset); | |
2507 } | |
2508 | |
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2509 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
710 | 2510 assert(is_instance(mh), "DMH only"); |
2511 mh->int_field_put(_vmindex_offset, index); | |
2512 } | |
2513 | |
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2514 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
710 | 2515 assert(is_instance(mh), "BMH only"); |
2516 return mh->int_field(_vmargslot_offset); | |
2517 } | |
2518 | |
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2519 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
710 | 2520 assert(is_instance(mh), "BMH only"); |
2521 return mh->obj_field(_argument_offset); | |
2522 } | |
2523 | |
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2524 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
710 | 2525 assert(is_instance(mh), "AMH only"); |
2526 return mh->int_field(_conversion_offset); | |
2527 } | |
2528 | |
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2529 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
710 | 2530 assert(is_instance(mh), "AMH only"); |
2531 mh->int_field_put(_conversion_offset, conv); | |
2532 } | |
2533 | |
2534 | |
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|
2535 // Support for java_lang_invoke_MethodType |
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2536 |
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2537 int java_lang_invoke_MethodType::_rtype_offset; |
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2538 int java_lang_invoke_MethodType::_ptypes_offset; |
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2539 int java_lang_invoke_MethodType::_form_offset; |
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2540 |
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2541 void java_lang_invoke_MethodType::compute_offsets() { |
710 | 2542 klassOop k = SystemDictionary::MethodType_klass(); |
2543 if (k != NULL) { | |
2544 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
2545 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
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2546 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
710 | 2547 } |
2548 } | |
2549 | |
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2550 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
710 | 2551 st->print("("); |
2552 objArrayOop pts = ptypes(mt); | |
2553 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
2554 java_lang_Class::print_signature(pts->obj_at(i), st); | |
2555 } | |
2556 st->print(")"); | |
2557 java_lang_Class::print_signature(rtype(mt), st); | |
2558 } | |
2559 | |
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2560 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
710 | 2561 ResourceMark rm; |
2562 stringStream buffer(128); | |
2563 print_signature(mt, &buffer); | |
2564 const char* sigstr = buffer.base(); | |
2565 int siglen = (int) buffer.size(); | |
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|
2566 Symbol *name; |
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|
2567 if (!intern_if_not_found) { |
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|
2568 name = SymbolTable::probe(sigstr, siglen); |
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|
2569 } else { |
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|
2570 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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|
2571 } |
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|
2572 return name; |
710 | 2573 } |
2574 | |
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|
2575 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
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2576 if (rtype(mt1) != rtype(mt2)) |
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|
2577 return false; |
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2578 if (ptype_count(mt1) != ptype_count(mt2)) |
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2579 return false; |
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|
2580 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
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2581 if (ptype(mt1, i) != ptype(mt2, i)) |
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|
2582 return false; |
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|
2583 } |
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|
2584 return true; |
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|
2585 } |
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|
2586 |
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2587 oop java_lang_invoke_MethodType::rtype(oop mt) { |
710 | 2588 assert(is_instance(mt), "must be a MethodType"); |
2589 return mt->obj_field(_rtype_offset); | |
2590 } | |
2591 | |
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|
2592 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
710 | 2593 assert(is_instance(mt), "must be a MethodType"); |
2594 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
2595 } | |
2596 | |
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|
2597 oop java_lang_invoke_MethodType::form(oop mt) { |
710 | 2598 assert(is_instance(mt), "must be a MethodType"); |
2599 return mt->obj_field(_form_offset); | |
2600 } | |
2601 | |
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2602 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
710 | 2603 return ptypes(mt)->obj_at(idx); |
2604 } | |
2605 | |
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2606 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
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|
2607 return ptypes(mt)->length(); |
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|
2608 } |
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|
2609 |
710 | 2610 |
2611 | |
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2612 // Support for java_lang_invoke_MethodTypeForm |
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2613 |
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2614 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
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|
2615 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
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2616 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
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|
2617 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
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|
2618 |
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|
2619 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
710 | 2620 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
2621 if (k != NULL) { | |
2622 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
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|
2623 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
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2624 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
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|
2625 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
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d257356e35f0
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diff
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|
2626 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
710 | 2627 } |
2628 } | |
2629 | |
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|
2630 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
710 | 2631 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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|
2632 assert(_vmslots_offset > 0, ""); |
710 | 2633 return mtform->int_field(_vmslots_offset); |
2634 } | |
2635 | |
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|
2636 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
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|
2637 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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|
2638 assert(_vmlayout_offset > 0, ""); |
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|
2639 return mtform->obj_field(_vmlayout_offset); |
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|
2640 } |
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|
2641 |
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|
2642 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
167b70ff3abc
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|
2643 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
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6939861: JVM should handle more conversion operations
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|
2644 oop previous = vmlayout(mtform); |
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diff
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|
2645 if (previous != NULL) { |
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diff
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|
2646 return previous; // someone else beat us to it |
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6939861: JVM should handle more conversion operations
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diff
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|
2647 } |
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|
2648 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
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diff
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|
2649 OrderAccess::storestore(); // make sure our copy is fully committed |
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|
2650 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
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|
2651 if (previous != NULL) { |
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diff
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|
2652 return previous; // someone else beat us to it |
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6939861: JVM should handle more conversion operations
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diff
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|
2653 } |
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diff
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|
2654 return cookie; |
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|
2655 } |
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|
2656 |
2357
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|
2657 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
710 | 2658 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
2659 return mtform->obj_field(_erasedType_offset); | |
2660 } | |
2661 | |
2357
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diff
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|
2662 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
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1552
diff
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|
2663 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
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1552
diff
changeset
|
2664 return mtform->obj_field(_genericInvoker_offset); |
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
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1552
diff
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|
2665 } |
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jrose
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diff
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|
2666 |
710 | 2667 |
2357
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diff
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|
2668 // Support for java_lang_invoke_CallSite |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
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|
2669 |
8033953d67ff
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2356
diff
changeset
|
2670 int java_lang_invoke_CallSite::_target_offset; |
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7012648: move JSR 292 to package java.lang.invoke and adjust names
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diff
changeset
|
2671 |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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diff
changeset
|
2672 void java_lang_invoke_CallSite::compute_offsets() { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2673 if (!EnableInvokeDynamic) return; |
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2674 klassOop k = SystemDictionary::CallSite_klass(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2675 if (k != NULL) { |
2357
8033953d67ff
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jrose
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2356
diff
changeset
|
2676 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2677 } |
3900
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
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3820
diff
changeset
|
2678 |
a32de5085326
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3820
diff
changeset
|
2679 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2680 // (For C2: keep this until we have throttling logic for uncommon traps.) |
a32de5085326
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3820
diff
changeset
|
2681 if (k != NULL) { |
a32de5085326
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twisti
parents:
3820
diff
changeset
|
2682 instanceKlass* ik = instanceKlass::cast(k); |
a32de5085326
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twisti
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3820
diff
changeset
|
2683 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
a32de5085326
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3820
diff
changeset
|
2684 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
a32de5085326
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twisti
parents:
3820
diff
changeset
|
2685 guarantee(m_normal && m_volatile, "must exist"); |
a32de5085326
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twisti
parents:
3820
diff
changeset
|
2686 m_normal->set_not_compilable_quietly(); |
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diff
changeset
|
2687 m_volatile->set_not_compilable_quietly(); |
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diff
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|
2688 } |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2689 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2690 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2691 oop java_lang_invoke_CallSite::target(oop site) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2692 return site->obj_field(_target_offset); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2693 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2694 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2695 void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2696 site->obj_field_put(_target_offset, target); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2697 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2698 |
710 | 2699 |
0 | 2700 // Support for java_security_AccessControlContext |
2701 | |
2702 int java_security_AccessControlContext::_context_offset = 0; | |
2703 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
2704 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
2705 | |
2706 void java_security_AccessControlContext::compute_offsets() { | |
2707 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
2708 fieldDescriptor fd; | |
2709 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
2710 | |
2711 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
2712 fatal("Invalid layout of java.security.AccessControlContext"); | |
2713 } | |
2714 _context_offset = fd.offset(); | |
2715 | |
2716 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
2717 fatal("Invalid layout of java.security.AccessControlContext"); | |
2718 } | |
2719 _privilegedContext_offset = fd.offset(); | |
2720 | |
2721 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
2722 fatal("Invalid layout of java.security.AccessControlContext"); | |
2723 } | |
2724 _isPrivileged_offset = fd.offset(); | |
2725 } | |
2726 | |
2727 | |
2728 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
2729 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
2730 // Ensure klass is initialized | |
2731 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
2732 // Allocate result | |
2733 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
2734 // Fill in values | |
2735 result->obj_field_put(_context_offset, context()); | |
2736 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
2737 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
2738 return result; | |
2739 } | |
2740 | |
2741 | |
2742 // Support for java_lang_ClassLoader | |
2743 | |
2744 oop java_lang_ClassLoader::parent(oop loader) { | |
2745 assert(loader->is_oop(), "loader must be oop"); | |
2746 return loader->obj_field(parent_offset); | |
2747 } | |
2748 | |
2749 | |
2750 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
2751 // Fix for 4474172; see evaluation for more details | |
2752 loader = non_reflection_class_loader(loader); | |
2753 | |
2754 oop cl = SystemDictionary::java_system_loader(); | |
2755 while(cl != NULL) { | |
2756 if (cl == loader) return true; | |
2757 cl = parent(cl); | |
2758 } | |
2759 return false; | |
2760 } | |
2761 | |
2762 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
2763 if (loader != NULL) { | |
2764 // See whether this is one of the class loaders associated with | |
2765 // the generated bytecodes for reflection, and if so, "magically" | |
2766 // delegate to its parent to prevent class loading from occurring | |
2767 // in places where applications using reflection didn't expect it. | |
1142 | 2768 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
0 | 2769 // This might be null in non-1.4 JDKs |
2770 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
2771 return parent(loader); | |
2772 } | |
2773 } | |
2774 return loader; | |
2775 } | |
2776 | |
2777 | |
2778 // Support for java_lang_System | |
2779 int java_lang_System::in_offset_in_bytes() { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2780 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
0 | 2781 } |
2782 | |
2783 | |
2784 int java_lang_System::out_offset_in_bytes() { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2785 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
0 | 2786 } |
2787 | |
2788 | |
2789 int java_lang_System::err_offset_in_bytes() { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2790 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
0 | 2791 } |
2792 | |
2793 | |
2794 | |
2795 int java_lang_String::value_offset; | |
2796 int java_lang_String::offset_offset; | |
2797 int java_lang_String::count_offset; | |
2798 int java_lang_String::hash_offset; | |
2799 int java_lang_Class::klass_offset; | |
2800 int java_lang_Class::array_klass_offset; | |
2801 int java_lang_Class::resolved_constructor_offset; | |
2802 int java_lang_Class::number_of_fake_oop_fields; | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2803 int java_lang_Class::oop_size_offset; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2804 int java_lang_Class::static_oop_field_count_offset; |
0 | 2805 int java_lang_Throwable::backtrace_offset; |
2806 int java_lang_Throwable::detailMessage_offset; | |
2807 int java_lang_Throwable::cause_offset; | |
2808 int java_lang_Throwable::stackTrace_offset; | |
3820
0b80db433fcb
7046490: Preallocated OOME objects should obey Throwable stack trace protocol
dholmes
parents:
3795
diff
changeset
|
2809 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
0 | 2810 int java_lang_reflect_AccessibleObject::override_offset; |
2811 int java_lang_reflect_Method::clazz_offset; | |
2812 int java_lang_reflect_Method::name_offset; | |
2813 int java_lang_reflect_Method::returnType_offset; | |
2814 int java_lang_reflect_Method::parameterTypes_offset; | |
2815 int java_lang_reflect_Method::exceptionTypes_offset; | |
2816 int java_lang_reflect_Method::slot_offset; | |
2817 int java_lang_reflect_Method::modifiers_offset; | |
2818 int java_lang_reflect_Method::signature_offset; | |
2819 int java_lang_reflect_Method::annotations_offset; | |
2820 int java_lang_reflect_Method::parameter_annotations_offset; | |
2821 int java_lang_reflect_Method::annotation_default_offset; | |
2822 int java_lang_reflect_Constructor::clazz_offset; | |
2823 int java_lang_reflect_Constructor::parameterTypes_offset; | |
2824 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
2825 int java_lang_reflect_Constructor::slot_offset; | |
2826 int java_lang_reflect_Constructor::modifiers_offset; | |
2827 int java_lang_reflect_Constructor::signature_offset; | |
2828 int java_lang_reflect_Constructor::annotations_offset; | |
2829 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
2830 int java_lang_reflect_Field::clazz_offset; | |
2831 int java_lang_reflect_Field::name_offset; | |
2832 int java_lang_reflect_Field::type_offset; | |
2833 int java_lang_reflect_Field::slot_offset; | |
2834 int java_lang_reflect_Field::modifiers_offset; | |
2835 int java_lang_reflect_Field::signature_offset; | |
2836 int java_lang_reflect_Field::annotations_offset; | |
2837 int java_lang_boxing_object::value_offset; | |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
2838 int java_lang_boxing_object::long_value_offset; |
0 | 2839 int java_lang_ref_Reference::referent_offset; |
2840 int java_lang_ref_Reference::queue_offset; | |
2841 int java_lang_ref_Reference::next_offset; | |
2842 int java_lang_ref_Reference::discovered_offset; | |
2843 int java_lang_ref_Reference::static_lock_offset; | |
2844 int java_lang_ref_Reference::static_pending_offset; | |
2845 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
2846 int java_lang_ref_SoftReference::timestamp_offset; | |
2847 int java_lang_ref_SoftReference::static_clock_offset; | |
2848 int java_lang_ClassLoader::parent_offset; | |
2849 int java_lang_System::static_in_offset; | |
2850 int java_lang_System::static_out_offset; | |
2851 int java_lang_System::static_err_offset; | |
2852 int java_lang_StackTraceElement::declaringClass_offset; | |
2853 int java_lang_StackTraceElement::methodName_offset; | |
2854 int java_lang_StackTraceElement::fileName_offset; | |
2855 int java_lang_StackTraceElement::lineNumber_offset; | |
2856 int java_lang_AssertionStatusDirectives::classes_offset; | |
2857 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
2858 int java_lang_AssertionStatusDirectives::packages_offset; | |
2859 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
2860 int java_lang_AssertionStatusDirectives::deflt_offset; | |
2861 int java_nio_Buffer::_limit_offset; | |
2862 int sun_misc_AtomicLongCSImpl::_value_offset; | |
2863 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
2864 int sun_reflect_ConstantPool::_cp_oop_offset; | |
2865 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
2866 | |
2867 | |
2868 // Support for java_lang_StackTraceElement | |
2869 | |
2870 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
2871 element->obj_field_put(fileName_offset, value); | |
2872 } | |
2873 | |
2874 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
2875 element->obj_field_put(declaringClass_offset, value); | |
2876 } | |
2877 | |
2878 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
2879 element->obj_field_put(methodName_offset, value); | |
2880 } | |
2881 | |
2882 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
2883 element->int_field_put(lineNumber_offset, value); | |
2884 } | |
2885 | |
2886 | |
2887 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
2888 | |
2889 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
2890 o->obj_field_put(classes_offset, val); | |
2891 } | |
2892 | |
2893 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
2894 o->obj_field_put(classEnabled_offset, val); | |
2895 } | |
2896 | |
2897 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
2898 o->obj_field_put(packages_offset, val); | |
2899 } | |
2900 | |
2901 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
2902 o->obj_field_put(packageEnabled_offset, val); | |
2903 } | |
2904 | |
2905 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
2906 o->bool_field_put(deflt_offset, val); | |
2907 } | |
2908 | |
2909 | |
2910 // Support for intrinsification of java.nio.Buffer.checkIndex | |
2911 int java_nio_Buffer::limit_offset() { | |
2912 return _limit_offset; | |
2913 } | |
2914 | |
2915 | |
2916 void java_nio_Buffer::compute_offsets() { | |
2917 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
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jrose
parents:
113
diff
changeset
|
2918 assert(k != NULL, "must be loaded in 1.4+"); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
2919 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
0 | 2920 } |
2921 | |
2922 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
2923 int sun_misc_AtomicLongCSImpl::value_offset() { | |
2924 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
2925 return _value_offset; | |
2926 } | |
2927 | |
2928 | |
2929 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
2930 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
2931 // If this class is not present, its value field offset won't be referenced. | |
2932 if (k != NULL) { | |
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
2933 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
0 | 2934 } |
2935 } | |
2936 | |
2937 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
2938 if (_owner_offset != 0) return; | |
2939 | |
2940 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
2941 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
2942 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
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jrose
parents:
113
diff
changeset
|
2943 compute_offset(_owner_offset, k, |
0 | 2944 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
2945 } | |
2946 | |
2947 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
2948 assert(_owner_offset != 0, "Must be initialized"); | |
2949 return obj->obj_field(_owner_offset); | |
2950 } | |
2951 | |
2952 // Compute hard-coded offsets | |
2953 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
2954 // are not available to determine the offset_of_static_fields. | |
2955 void JavaClasses::compute_hard_coded_offsets() { | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
98
diff
changeset
|
2956 const int x = heapOopSize; |
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2957 const int header = instanceOopDesc::base_offset_in_bytes(); |
0 | 2958 |
2959 // Do the String Class | |
2960 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
2961 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
2962 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
2963 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
2964 | |
2376
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7017732: move static fields into Class to prepare for perm gen removal
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2357
diff
changeset
|
2965 { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2966 // Do the Class Class |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2967 int offset = header; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2968 java_lang_Class::oop_size_offset = header; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2969 offset += BytesPerInt; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2970 java_lang_Class::static_oop_field_count_offset = offset; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2971 offset = align_size_up(offset + BytesPerInt, x); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2972 java_lang_Class::klass_offset = offset; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2973 offset += x; |
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2974 java_lang_Class::array_klass_offset = offset; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2975 offset += x; |
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
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diff
changeset
|
2976 java_lang_Class::resolved_constructor_offset = offset; |
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|
2977 } |
0 | 2978 |
2979 // This is NOT an offset | |
2980 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
2981 | |
2982 // Throwable Class | |
2983 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
2984 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
2985 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
2986 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
3820
0b80db433fcb
7046490: Preallocated OOME objects should obey Throwable stack trace protocol
dholmes
parents:
3795
diff
changeset
|
2987 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
0 | 2988 |
2989 // java_lang_boxing_object | |
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2990 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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2991 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
0 | 2992 |
2993 // java_lang_ref_Reference: | |
2994 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
2995 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
2996 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
2997 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
2998 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
2999 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
3000 // Artificial fields for java_lang_ref_Reference | |
3001 // The first field is for the discovered field added in 1.4 | |
3002 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
3003 | |
3004 // java_lang_ref_SoftReference Class | |
165
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3005 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
0 | 3006 // Don't multiply static fields because they are always in wordSize units |
3007 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
3008 | |
3009 // java_lang_ClassLoader | |
3010 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
3011 | |
3012 // java_lang_System | |
3013 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
3014 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
3015 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
3016 | |
3017 // java_lang_StackTraceElement | |
3018 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
3019 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
3020 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
3021 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
3022 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
3023 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
3024 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
3025 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
3026 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
3027 | |
3028 } | |
3029 | |
3030 | |
3031 // Compute non-hard-coded field offsets of all the classes in this file | |
3032 void JavaClasses::compute_offsets() { | |
3033 | |
3034 java_lang_Class::compute_offsets(); | |
3035 java_lang_Thread::compute_offsets(); | |
3036 java_lang_ThreadGroup::compute_offsets(); | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2379
diff
changeset
|
3037 if (EnableInvokeDynamic) { |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3038 java_lang_invoke_MethodHandle::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3039 java_lang_invoke_MemberName::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3040 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3041 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3042 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3043 java_lang_invoke_MethodType::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3044 java_lang_invoke_MethodTypeForm::compute_offsets(); |
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
3045 java_lang_invoke_CallSite::compute_offsets(); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
3046 } |
0 | 3047 java_security_AccessControlContext::compute_offsets(); |
3048 // Initialize reflection classes. The layouts of these classes | |
3049 // changed with the new reflection implementation in JDK 1.4, and | |
3050 // since the Universe doesn't know what JDK version it is until this | |
3051 // point we defer computation of these offsets until now. | |
3052 java_lang_reflect_AccessibleObject::compute_offsets(); | |
3053 java_lang_reflect_Method::compute_offsets(); | |
3054 java_lang_reflect_Constructor::compute_offsets(); | |
3055 java_lang_reflect_Field::compute_offsets(); | |
3056 if (JDK_Version::is_gte_jdk14x_version()) { | |
3057 java_nio_Buffer::compute_offsets(); | |
3058 } | |
3059 if (JDK_Version::is_gte_jdk15x_version()) { | |
3060 sun_reflect_ConstantPool::compute_offsets(); | |
3061 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
3062 } | |
3063 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
710 | 3064 |
3065 // generated interpreter code wants to know about the offsets we just computed: | |
3066 AbstractAssembler::update_delayed_values(); | |
0 | 3067 } |
3068 | |
3069 #ifndef PRODUCT | |
3070 | |
3071 // These functions exist to assert the validity of hard-coded field offsets to guard | |
3072 // against changes in the class files | |
3073 | |
3074 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3075 EXCEPTION_MARK; | |
3076 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3077 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3078 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3079 instanceKlassHandle h_klass (THREAD, k); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3080 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3081 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3082 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3083 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
3084 return false; | |
3085 } | |
3086 if (fd.is_static()) { | |
3087 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
3088 return false; | |
3089 } | |
3090 if (fd.offset() == hardcoded_offset ) { | |
3091 return true; | |
3092 } else { | |
3093 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
3094 klass_name, field_name, hardcoded_offset, fd.offset()); | |
3095 return false; | |
3096 } | |
3097 } | |
3098 | |
3099 | |
3100 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
3101 EXCEPTION_MARK; | |
3102 fieldDescriptor fd; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3103 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
0 | 3104 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
3105 instanceKlassHandle h_klass (THREAD, k); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3106 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3107 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3108 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
0 | 3109 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
3110 return false; | |
3111 } | |
3112 if (!fd.is_static()) { | |
3113 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
3114 return false; | |
3115 } | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3116 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
0 | 3117 return true; |
3118 } else { | |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3119 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 | 3120 return false; |
3121 } | |
3122 } | |
3123 | |
3124 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3125 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3126 EXCEPTION_MARK; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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diff
changeset
|
3127 fieldDescriptor fd; |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3128 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
3129 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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|
3130 instanceKlassHandle h_klass (THREAD, k); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3131 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3132 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3133 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
132
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jrose
parents:
113
diff
changeset
|
3134 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3135 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3136 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3137 if (!fd.is_static() || !fd.has_initial_value()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3138 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3139 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3140 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3141 if (!fd.initial_value_tag().is_int()) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3142 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3143 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3144 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3145 jint field_value = fd.int_initial_value(); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3146 if (field_value == hardcoded_constant) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3147 return true; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3148 } else { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3149 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3150 return false; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3151 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3152 } |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3153 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
diff
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|
3154 |
0 | 3155 // Check the hard-coded field offsets of all the classes in this file |
3156 | |
3157 void JavaClasses::check_offsets() { | |
3158 bool valid = true; | |
3159 | |
3160 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
3161 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
3162 | |
165
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6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3163 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
437d03ea40b1
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kvn
parents:
132
diff
changeset
|
3164 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
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|
3165 |
0 | 3166 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
3167 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
3168 | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3169 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3170 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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3171 |
0 | 3172 // java.lang.String |
3173 | |
3174 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
3175 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
3176 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
3177 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
3178 | |
3179 // java.lang.Class | |
3180 | |
3181 // Fake fields | |
3182 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
3183 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
3184 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
3185 | |
3186 // java.lang.Throwable | |
3187 | |
3188 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
3189 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
3190 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
3191 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
3192 | |
3193 // Boxed primitive objects (java_lang_boxing_object) | |
3194 | |
3195 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
3196 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
3197 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
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3198 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
0 | 3199 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
3200 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
3201 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
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3202 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
0 | 3203 |
3204 // java.lang.ClassLoader | |
3205 | |
3206 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
3207 | |
3208 // java.lang.System | |
3209 | |
3210 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
3211 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
3212 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
3213 | |
3214 // java.lang.StackTraceElement | |
3215 | |
3216 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
3217 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
3218 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
3219 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
3220 | |
3221 // java.lang.ref.Reference | |
3222 | |
3223 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
3224 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
3225 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
3226 // Fake field | |
3227 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
3228 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
3229 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
3230 | |
3231 // java.lang.ref.SoftReference | |
3232 | |
3233 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
3234 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
3235 | |
3236 // java.lang.AssertionStatusDirectives | |
3237 // | |
3238 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
3239 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
3240 // into merlin "for some time." Without it, the vm will fail with early | |
3241 // merlin builds. | |
3242 | |
3243 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
3244 const char* nm = "java/lang/AssertionStatusDirectives"; | |
3245 const char* sig = "[Ljava/lang/String;"; | |
3246 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
3247 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
3248 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
3249 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
3250 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
3251 } | |
3252 | |
3253 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
3254 } | |
3255 | |
3256 #endif // PRODUCT | |
3257 | |
3258 void javaClasses_init() { | |
3259 JavaClasses::compute_offsets(); | |
3260 JavaClasses::check_offsets(); | |
3261 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
3262 } |