Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 3820:0b80db433fcb
7046490: Preallocated OOME objects should obey Throwable stack trace protocol
Summary: Update the OOME stacktrace to contain Throwable.UNASSIGNED_STACK when the backtrace is filled in
Reviewed-by: mchung, phh
| author | dholmes |
|---|---|
| date | Fri, 22 Jul 2011 00:29:01 -0700 |
| parents | b16582d6c7db |
| children | a32de5085326 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/javaClasses.hpp" | |
| 27 #include "classfile/symbolTable.hpp" | |
| 28 #include "classfile/vmSymbols.hpp" | |
| 29 #include "code/debugInfo.hpp" | |
| 30 #include "code/pcDesc.hpp" | |
| 31 #include "interpreter/interpreter.hpp" | |
| 32 #include "memory/oopFactory.hpp" | |
| 33 #include "memory/resourceArea.hpp" | |
| 34 #include "memory/universe.inline.hpp" | |
| 35 #include "oops/instanceKlass.hpp" | |
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36 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 37 #include "oops/klass.hpp" |
| 38 #include "oops/klassOop.hpp" | |
| 39 #include "oops/methodOop.hpp" | |
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40 #include "oops/symbol.hpp" |
| 1972 | 41 #include "oops/typeArrayOop.hpp" |
| 42 #include "runtime/fieldDescriptor.hpp" | |
| 43 #include "runtime/handles.inline.hpp" | |
| 44 #include "runtime/interfaceSupport.hpp" | |
| 45 #include "runtime/java.hpp" | |
| 46 #include "runtime/javaCalls.hpp" | |
| 47 #include "runtime/safepoint.hpp" | |
| 48 #include "runtime/vframe.hpp" | |
| 49 #include "utilities/preserveException.hpp" | |
| 50 #ifdef TARGET_OS_FAMILY_linux | |
| 51 # include "thread_linux.inline.hpp" | |
| 52 #endif | |
| 53 #ifdef TARGET_OS_FAMILY_solaris | |
| 54 # include "thread_solaris.inline.hpp" | |
| 55 #endif | |
| 56 #ifdef TARGET_OS_FAMILY_windows | |
| 57 # include "thread_windows.inline.hpp" | |
| 58 #endif | |
| 0 | 59 |
| 710 | 60 static bool find_field(instanceKlass* ik, |
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61 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 62 fieldDescriptor* fd, |
| 63 bool allow_super = false) { | |
| 64 if (allow_super) | |
| 65 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 66 else | |
| 67 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 68 } | |
| 69 | |
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70 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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71 static void |
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72 compute_offset(int &dest_offset, |
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73 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 74 bool allow_super = false) { |
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75 fieldDescriptor fd; |
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76 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 77 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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78 ResourceMark rm; |
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79 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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80 fatal("Invalid layout of preloaded class"); |
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81 } |
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82 dest_offset = fd.offset(); |
| 0 | 83 } |
| 84 | |
| 85 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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86 static void |
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87 compute_optional_offset(int& dest_offset, |
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88 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 89 bool allow_super = false) { |
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90 fieldDescriptor fd; |
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91 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 92 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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93 dest_offset = fd.offset(); |
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94 } |
| 0 | 95 } |
| 96 | |
| 710 | 97 |
| 0 | 98 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 99 // Create the String object first, so there's a chance that the String | |
| 100 // and the char array it points to end up in the same cache line. | |
| 101 oop obj; | |
| 102 if (tenured) { | |
| 1142 | 103 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 104 } else { |
| 1142 | 105 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 106 } |
| 107 | |
| 108 // Create the char array. The String object must be handlized here | |
| 109 // because GC can happen as a result of the allocation attempt. | |
| 110 Handle h_obj(THREAD, obj); | |
| 111 typeArrayOop buffer; | |
| 112 if (tenured) { | |
| 113 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 114 } else { | |
| 115 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 116 } | |
| 117 | |
| 118 // Point the String at the char array | |
| 119 obj = h_obj(); | |
| 120 set_value(obj, buffer); | |
| 121 // No need to zero the offset, allocation zero'ed the entire String object | |
| 122 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 123 //set_offset(obj, 0); | |
| 124 set_count(obj, length); | |
| 125 | |
| 126 return h_obj; | |
| 127 } | |
| 128 | |
| 129 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 130 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 131 typeArrayOop buffer = value(h_obj()); | |
| 132 for (int index = 0; index < length; index++) { | |
| 133 buffer->char_at_put(index, unicode[index]); | |
| 134 } | |
| 135 return h_obj; | |
| 136 } | |
| 137 | |
| 138 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 139 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 140 } | |
| 141 | |
| 142 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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143 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 144 } |
| 145 | |
| 146 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 147 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 148 return h_obj(); | |
| 149 } | |
| 150 | |
| 151 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 152 if (utf8_str == NULL) { | |
| 153 return Handle(); | |
| 154 } | |
| 155 int length = UTF8::unicode_length(utf8_str); | |
| 156 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 157 if (length > 0) { | |
| 158 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 159 } | |
| 160 return h_obj; | |
| 161 } | |
| 162 | |
| 163 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 164 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 165 return h_obj(); | |
| 166 } | |
| 167 | |
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168 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 169 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 170 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 171 if (length > 0) { | |
| 172 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 173 } | |
| 174 return h_obj; | |
| 175 } | |
| 176 | |
| 177 // Converts a C string to a Java String based on current encoding | |
| 178 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 179 assert(str != NULL, "bad arguments"); | |
| 180 | |
| 181 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 182 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 183 | |
| 184 if (_to_java_string_fn == NULL) { | |
| 185 void *lib_handle = os::native_java_library(); | |
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186 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 187 if (_to_java_string_fn == NULL) { |
| 188 fatal("NewStringPlatform missing"); | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 jstring js = NULL; | |
| 193 { JavaThread* thread = (JavaThread*)THREAD; | |
| 194 assert(thread->is_Java_thread(), "must be java thread"); | |
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195 HandleMark hm(thread); |
| 0 | 196 ThreadToNativeFromVM ttn(thread); |
| 197 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 198 } | |
| 199 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 200 } | |
| 201 | |
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202 // Converts a Java String to a native C string that can be used for |
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203 // native OS calls. |
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204 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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205 |
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206 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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207 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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208 |
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209 if (_to_platform_string_fn == NULL) { |
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210 void *lib_handle = os::native_java_library(); |
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211 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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212 if (_to_platform_string_fn == NULL) { |
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213 fatal("GetStringPlatformChars missing"); |
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214 } |
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215 } |
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216 |
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217 char *native_platform_string; |
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218 { JavaThread* thread = (JavaThread*)THREAD; |
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219 assert(thread->is_Java_thread(), "must be java thread"); |
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220 JNIEnv *env = thread->jni_environment(); |
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221 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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222 bool is_copy; |
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223 HandleMark hm(thread); |
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224 ThreadToNativeFromVM ttn(thread); |
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225 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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226 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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227 JNIHandles::destroy_local(js); |
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228 } |
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229 return native_platform_string; |
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230 } |
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231 |
| 0 | 232 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 233 oop obj = java_string(); | |
| 234 // Typical usage is to convert all '/' to '.' in string. | |
| 235 typeArrayOop value = java_lang_String::value(obj); | |
| 236 int offset = java_lang_String::offset(obj); | |
| 237 int length = java_lang_String::length(obj); | |
| 238 | |
| 239 // First check if any from_char exist | |
| 240 int index; // Declared outside, used later | |
| 241 for (index = 0; index < length; index++) { | |
| 242 if (value->char_at(index + offset) == from_char) { | |
| 243 break; | |
| 244 } | |
| 245 } | |
| 246 if (index == length) { | |
| 247 // No from_char, so do not copy. | |
| 248 return java_string; | |
| 249 } | |
| 250 | |
| 251 // Create new UNICODE buffer. Must handlize value because GC | |
| 252 // may happen during String and char array creation. | |
| 253 typeArrayHandle h_value(THREAD, value); | |
| 254 Handle string = basic_create(length, false, CHECK_NH); | |
| 255 | |
| 256 typeArrayOop from_buffer = h_value(); | |
| 257 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 258 | |
| 259 // Copy contents | |
| 260 for (index = 0; index < length; index++) { | |
| 261 jchar c = from_buffer->char_at(index + offset); | |
| 262 if (c == from_char) { | |
| 263 c = to_char; | |
| 264 } | |
| 265 to_buffer->char_at_put(index, c); | |
| 266 } | |
| 267 return string; | |
| 268 } | |
| 269 | |
| 270 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 271 typeArrayOop value = java_lang_String::value(java_string); | |
| 272 int offset = java_lang_String::offset(java_string); | |
| 273 length = java_lang_String::length(java_string); | |
| 274 | |
| 275 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 276 for (int index = 0; index < length; index++) { | |
| 277 result[index] = value->char_at(index + offset); | |
| 278 } | |
| 279 return result; | |
| 280 } | |
| 281 | |
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282 unsigned int java_lang_String::hash_string(oop java_string) { |
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283 typeArrayOop value = java_lang_String::value(java_string); |
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284 int offset = java_lang_String::offset(java_string); |
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285 int length = java_lang_String::length(java_string); |
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286 |
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287 if (length == 0) return 0; |
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288 return hash_string(value->char_at_addr(offset), length); |
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289 } |
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290 |
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291 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 292 oop obj = java_string(); |
| 293 typeArrayOop value = java_lang_String::value(obj); | |
| 294 int offset = java_lang_String::offset(obj); | |
| 295 int length = java_lang_String::length(obj); | |
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296 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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297 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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298 return sym; |
| 0 | 299 } |
| 300 | |
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301 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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302 typeArrayOop value = java_lang_String::value(java_string); |
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303 int offset = java_lang_String::offset(java_string); |
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304 int length = java_lang_String::length(java_string); |
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305 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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306 return SymbolTable::probe_unicode(base, length); |
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307 } |
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308 |
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309 |
| 0 | 310 int java_lang_String::utf8_length(oop java_string) { |
| 311 typeArrayOop value = java_lang_String::value(java_string); | |
| 312 int offset = java_lang_String::offset(java_string); | |
| 313 int length = java_lang_String::length(java_string); | |
| 314 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 315 return UNICODE::utf8_length(position, length); | |
| 316 } | |
| 317 | |
| 318 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 319 typeArrayOop value = java_lang_String::value(java_string); | |
| 320 int offset = java_lang_String::offset(java_string); | |
| 321 int length = java_lang_String::length(java_string); | |
| 322 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 323 return UNICODE::as_utf8(position, length); | |
| 324 } | |
| 325 | |
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326 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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327 typeArrayOop value = java_lang_String::value(java_string); |
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328 int offset = java_lang_String::offset(java_string); |
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329 int length = java_lang_String::length(java_string); |
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330 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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331 return UNICODE::as_utf8(position, length, buf, buflen); |
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332 } |
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333 |
| 0 | 334 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 335 typeArrayOop value = java_lang_String::value(java_string); | |
| 336 int offset = java_lang_String::offset(java_string); | |
| 337 int length = java_lang_String::length(java_string); | |
| 338 assert(start + len <= length, "just checking"); | |
| 339 jchar* position = value->char_at_addr(offset + start); | |
| 340 return UNICODE::as_utf8(position, len); | |
| 341 } | |
| 342 | |
| 343 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 344 assert(SharedSkipVerify || | |
| 1142 | 345 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 346 "must be java_string"); |
| 347 typeArrayOop value = java_lang_String::value(java_string); | |
| 348 int offset = java_lang_String::offset(java_string); | |
| 349 int length = java_lang_String::length(java_string); | |
| 350 if (length != len) { | |
| 351 return false; | |
| 352 } | |
| 353 for (int i = 0; i < len; i++) { | |
| 354 if (value->char_at(i + offset) != chars[i]) { | |
| 355 return false; | |
| 356 } | |
| 357 } | |
| 358 return true; | |
| 359 } | |
| 360 | |
| 361 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 362 oop obj = java_string(); | |
| 1142 | 363 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 364 typeArrayOop value = java_lang_String::value(obj); |
| 365 int offset = java_lang_String::offset(obj); | |
| 366 int length = java_lang_String::length(obj); | |
| 367 | |
| 368 int end = MIN2(length, 100); | |
| 369 if (value == NULL) { | |
| 370 // This can happen if, e.g., printing a String | |
| 371 // object before its initializer has been called | |
| 372 st->print_cr("NULL"); | |
| 373 } else { | |
| 374 st->print("\""); | |
| 375 for (int index = 0; index < length; index++) { | |
| 376 st->print("%c", value->char_at(index + offset)); | |
| 377 } | |
| 378 st->print("\""); | |
| 379 } | |
| 380 } | |
| 381 | |
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382 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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383 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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384 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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385 if (fd->has_initial_value()) { |
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386 BasicType t = fd->field_type(); |
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387 switch (t) { |
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388 case T_BYTE: |
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389 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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390 break; |
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391 case T_BOOLEAN: |
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392 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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393 break; |
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394 case T_CHAR: |
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395 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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396 break; |
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397 case T_SHORT: |
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398 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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399 break; |
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400 case T_INT: |
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401 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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402 break; |
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403 case T_FLOAT: |
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404 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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405 break; |
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406 case T_DOUBLE: |
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407 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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408 break; |
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409 case T_LONG: |
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410 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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411 break; |
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412 case T_OBJECT: |
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413 { |
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414 #ifdef ASSERT |
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415 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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416 assert(fd->signature() == sym, "just checking"); |
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417 #endif |
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418 oop string = fd->string_initial_value(CHECK); |
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419 mirror()->obj_field_put(fd->offset(), string); |
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420 } |
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421 break; |
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422 default: |
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423 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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424 "Illegal ConstantValue attribute in class file"); |
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425 } |
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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 // During bootstrap, java.lang.Class wasn't loaded so static field |
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431 // offsets were computed without the size added it. Go back and |
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432 // update all the static field offsets to included the size. |
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433 static void fixup_static_field(fieldDescriptor* fd, TRAPS) { |
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434 if (fd->is_static()) { |
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435 int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields(); |
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436 typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields(); |
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437 fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset)); |
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438 fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset)); |
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439 } |
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440 } |
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441 |
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442 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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443 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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444 |
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445 if (k->oop_is_instance()) { |
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446 // Fixup the offsets |
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447 instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK); |
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448 } |
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449 create_mirror(k, CHECK); |
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450 } |
| 0 | 451 |
| 452 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 453 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 454 // Use this moment of initialization to cache modifier_flags also, | |
| 455 // to support Class.getModifiers(). Instance classes recalculate | |
| 456 // the cached flags after the class file is parsed, but before the | |
| 457 // class is put into the system dictionary. | |
| 458 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 459 k->set_modifier_flags(computed_modifiers); | |
|
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460 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 461 // Allocate mirror (java.lang.Class instance) |
|
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462 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
| 0 | 463 // Setup indirections |
| 464 mirror->obj_field_put(klass_offset, k()); | |
| 465 k->set_java_mirror(mirror()); | |
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466 |
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467 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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468 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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469 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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470 |
| 0 | 471 // It might also have a component mirror. This mirror must already exist. |
| 472 if (k->oop_is_javaArray()) { | |
| 473 Handle comp_mirror; | |
| 474 if (k->oop_is_typeArray()) { | |
| 475 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 476 comp_mirror = Universe::java_mirror(type); | |
| 477 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 478 } else if (k->oop_is_objArray()) { | |
| 479 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 480 if (element_klass != NULL | |
| 481 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 482 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 483 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 484 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 485 } | |
| 486 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 487 } | |
| 488 if (comp_mirror.not_null()) { | |
| 489 // Two-way link between the array klass and its component mirror: | |
| 490 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 491 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 492 } | |
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493 } else if (k->oop_is_instance()) { |
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494 // Initialize static fields |
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495 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 496 } |
| 497 return mirror(); | |
| 498 } else { | |
| 499 return NULL; | |
| 500 } | |
| 501 } | |
| 502 | |
| 503 | |
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504 |
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505 int java_lang_Class::oop_size(oop java_class) { |
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506 assert(oop_size_offset != 0, "must be set"); |
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507 return java_class->int_field(oop_size_offset); |
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508 } |
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509 void java_lang_Class::set_oop_size(oop java_class, int size) { |
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510 assert(oop_size_offset != 0, "must be set"); |
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511 java_class->int_field_put(oop_size_offset, size); |
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512 } |
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513 int java_lang_Class::static_oop_field_count(oop java_class) { |
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514 assert(static_oop_field_count_offset != 0, "must be set"); |
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515 return java_class->int_field(static_oop_field_count_offset); |
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516 } |
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517 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
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518 assert(static_oop_field_count_offset != 0, "must be set"); |
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519 java_class->int_field_put(static_oop_field_count_offset, size); |
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520 } |
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521 |
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522 |
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523 |
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524 |
| 0 | 525 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 526 // This should be improved by adding a field at the Java level or by | |
| 527 // introducing a new VM klass (see comment in ClassFileParser) | |
|
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528 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 529 if (type != T_VOID) { |
| 530 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 531 assert(aklass != NULL, "correct bootstrap"); | |
| 532 set_array_klass(java_class, aklass); | |
| 533 } | |
|
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534 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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535 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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536 java_lang_Class::set_static_oop_field_count(java_class, 0); |
| 0 | 537 return java_class; |
| 538 } | |
| 539 | |
| 540 | |
| 541 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 542 //%note memory_2 | |
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543 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 544 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 545 assert(k == NULL || k->is_klass(), "type check"); | |
| 546 return k; | |
| 547 } | |
| 548 | |
| 549 | |
|
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550 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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551 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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552 Symbol* name = NULL; |
|
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553 bool is_instance = false; |
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554 if (is_primitive(java_class)) { |
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555 name = vmSymbols::type_signature(primitive_type(java_class)); |
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556 } else { |
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557 klassOop k = as_klassOop(java_class); |
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558 is_instance = Klass::cast(k)->oop_is_instance(); |
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559 name = Klass::cast(k)->name(); |
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560 } |
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561 if (name == NULL) { |
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562 st->print("<null>"); |
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563 return; |
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564 } |
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565 if (is_instance) st->print("L"); |
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566 st->write((char*) name->base(), (int) name->utf8_length()); |
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567 if (is_instance) st->print(";"); |
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568 } |
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569 |
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570 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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571 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
|
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572 Symbol* name; |
|
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573 if (is_primitive(java_class)) { |
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574 name = vmSymbols::type_signature(primitive_type(java_class)); |
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575 // Because this can create a new symbol, the caller has to decrement |
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576 // the refcount, so make adjustment here and below for symbols returned |
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577 // that are not created or incremented due to a successful lookup. |
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578 name->increment_refcount(); |
|
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579 } else { |
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580 klassOop k = as_klassOop(java_class); |
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581 if (!Klass::cast(k)->oop_is_instance()) { |
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582 name = Klass::cast(k)->name(); |
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583 name->increment_refcount(); |
|
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584 } else { |
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585 ResourceMark rm; |
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586 const char* sigstr = Klass::cast(k)->signature_name(); |
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587 int siglen = (int) strlen(sigstr); |
|
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588 if (!intern_if_not_found) { |
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589 name = SymbolTable::probe(sigstr, siglen); |
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590 } else { |
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591 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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592 } |
|
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593 } |
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594 } |
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595 return name; |
|
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596 } |
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597 |
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598 |
| 0 | 599 klassOop java_lang_Class::array_klass(oop java_class) { |
| 600 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
| 601 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
| 602 return k; | |
| 603 } | |
| 604 | |
| 605 | |
| 606 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 607 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 608 java_class->obj_field_put(array_klass_offset, klass); | |
| 609 } | |
| 610 | |
| 611 | |
| 612 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 613 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
| 614 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
| 615 return methodOop(constructor); | |
| 616 } | |
| 617 | |
| 618 | |
| 619 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 620 assert(constructor->is_method(), "should be method"); | |
| 621 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
| 622 } | |
| 623 | |
| 624 | |
| 625 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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626 // should assert: |
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627 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 628 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 629 return k == NULL; | |
| 630 } | |
| 631 | |
| 632 | |
| 633 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 634 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 635 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
| 636 BasicType type = T_VOID; | |
| 637 if (ak != NULL) { | |
| 638 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 639 type = arrayKlass::cast(ak)->element_type(); | |
| 640 } else { | |
| 641 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 642 } | |
| 643 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 644 return type; | |
| 645 } | |
| 646 | |
|
665
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647 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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648 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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649 if (is_primitive(java_class)) { |
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650 if (reference_klass != NULL) |
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651 (*reference_klass) = NULL; |
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652 return primitive_type(java_class); |
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653 } else { |
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654 if (reference_klass != NULL) |
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655 (*reference_klass) = as_klassOop(java_class); |
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656 return T_OBJECT; |
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657 } |
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658 } |
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|
659 |
| 0 | 660 |
| 661 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 662 oop mirror = Universe::java_mirror(t); | |
| 1142 | 663 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 664 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 665 return mirror; | |
| 666 } | |
| 667 | |
| 668 bool java_lang_Class::offsets_computed = false; | |
| 669 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 514 | 670 int java_lang_Class::parallelCapable_offset = -1; |
| 0 | 671 |
| 672 void java_lang_Class::compute_offsets() { | |
| 673 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 674 offsets_computed = true; | |
| 675 | |
| 1142 | 676 klassOop k = SystemDictionary::Class_klass(); |
| 0 | 677 // The classRedefinedCount field is only present starting in 1.5, |
| 678 // so don't go fatal. | |
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679 compute_optional_offset(classRedefinedCount_offset, |
| 0 | 680 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 514 | 681 |
| 682 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 1142 | 683 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
| 514 | 684 compute_optional_offset(parallelCapable_offset, |
| 685 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 686 } | |
| 687 | |
| 688 // For class loader classes, parallelCapable defined | |
| 689 // based on non-null field | |
| 690 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 691 bool java_lang_Class::parallelCapable(oop class_loader) { | |
| 692 if (!JDK_Version::is_gte_jdk17x_version() | |
| 693 || parallelCapable_offset == -1) { | |
| 694 // Default for backward compatibility is false | |
| 695 return false; | |
| 696 } | |
| 697 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 0 | 698 } |
| 699 | |
| 700 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 701 if (!JDK_Version::is_gte_jdk15x_version() | |
| 702 || classRedefinedCount_offset == -1) { | |
| 703 // The classRedefinedCount field is only present starting in 1.5. | |
| 704 // If we don't have an offset for it then just return -1 as a marker. | |
| 705 return -1; | |
| 706 } | |
| 707 | |
| 708 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 709 } | |
| 710 | |
| 711 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 712 if (!JDK_Version::is_gte_jdk15x_version() | |
| 713 || classRedefinedCount_offset == -1) { | |
| 714 // The classRedefinedCount field is only present starting in 1.5. | |
| 715 // If we don't have an offset for it then nothing to set. | |
| 716 return; | |
| 717 } | |
| 718 | |
| 719 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 720 } | |
| 721 | |
| 722 | |
| 723 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 724 // platform thread structure, and a eetop offset which was used for thread | |
| 725 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 726 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 727 // instead of the privateInfo_offset. | |
| 728 // | |
| 729 // Note: The stackSize field is only present starting in 1.4. | |
| 730 | |
| 731 int java_lang_Thread::_name_offset = 0; | |
| 732 int java_lang_Thread::_group_offset = 0; | |
| 733 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 734 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 735 int java_lang_Thread::_priority_offset = 0; | |
| 736 int java_lang_Thread::_eetop_offset = 0; | |
| 737 int java_lang_Thread::_daemon_offset = 0; | |
| 738 int java_lang_Thread::_stillborn_offset = 0; | |
| 739 int java_lang_Thread::_stackSize_offset = 0; | |
| 740 int java_lang_Thread::_tid_offset = 0; | |
| 741 int java_lang_Thread::_thread_status_offset = 0; | |
| 742 int java_lang_Thread::_park_blocker_offset = 0; | |
| 743 int java_lang_Thread::_park_event_offset = 0 ; | |
| 744 | |
| 745 | |
| 746 void java_lang_Thread::compute_offsets() { | |
| 747 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 748 | |
| 1142 | 749 klassOop k = SystemDictionary::Thread_klass(); |
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750 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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751 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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752 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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753 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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754 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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755 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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756 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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757 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 758 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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759 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 760 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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761 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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762 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 763 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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764 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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765 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 766 vmSymbols::long_signature()); |
| 767 } | |
| 768 | |
| 769 | |
| 770 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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771 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 772 } |
| 773 | |
| 774 | |
| 775 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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776 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 777 } |
| 778 | |
| 779 | |
| 780 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 781 oop name = java_thread->obj_field(_name_offset); | |
| 782 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 783 return typeArrayOop(name); | |
| 784 } | |
| 785 | |
| 786 | |
| 787 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 788 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 789 java_thread->obj_field_put(_name_offset, name); | |
| 790 } | |
| 791 | |
| 792 | |
| 793 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 794 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 795 } | |
| 796 | |
| 797 | |
| 798 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 799 java_thread->int_field_put(_priority_offset, priority); | |
| 800 } | |
| 801 | |
| 802 | |
| 803 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 804 return java_thread->obj_field(_group_offset); | |
| 805 } | |
| 806 | |
| 807 | |
| 808 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 809 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 810 } | |
| 811 | |
| 812 | |
| 813 // We never have reason to turn the stillborn bit off | |
| 814 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 815 java_thread->bool_field_put(_stillborn_offset, true); | |
| 816 } | |
| 817 | |
| 818 | |
| 819 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 820 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 821 return (thr != NULL); | |
| 822 } | |
| 823 | |
| 824 | |
| 825 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 826 return java_thread->bool_field(_daemon_offset) != 0; | |
| 827 } | |
| 828 | |
| 829 | |
| 830 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 831 java_thread->bool_field_put(_daemon_offset, true); | |
| 832 } | |
| 833 | |
| 834 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 835 return java_thread->obj_field(_contextClassLoader_offset); | |
| 836 } | |
| 837 | |
| 838 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 839 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 840 } | |
| 841 | |
| 842 | |
| 843 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 844 // The stackSize field is only present starting in 1.4 | |
| 845 if (_stackSize_offset > 0) { | |
| 846 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 847 return java_thread->long_field(_stackSize_offset); | |
| 848 } else { | |
| 849 return 0; | |
| 850 } | |
| 851 } | |
| 852 | |
| 853 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 854 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 855 java_lang_Thread::ThreadStatus status) { | |
| 856 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 857 // The threadStatus is only present starting in 1.5 | |
| 858 if (_thread_status_offset > 0) { | |
| 859 java_thread->int_field_put(_thread_status_offset, status); | |
| 860 } | |
| 861 } | |
| 862 | |
| 863 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 864 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 865 assert(Thread::current()->is_VM_thread() || | |
| 866 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 867 "Java Thread is not running in vm"); | |
| 868 // The threadStatus is only present starting in 1.5 | |
| 869 if (_thread_status_offset > 0) { | |
| 870 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 871 } else { | |
| 872 // All we can easily figure out is if it is alive, but that is | |
| 873 // enough info for a valid unknown status. | |
| 874 // These aren't restricted to valid set ThreadStatus values, so | |
| 875 // use JVMTI values and cast. | |
| 876 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 877 if (thr == NULL) { | |
| 878 // the thread hasn't run yet or is in the process of exiting | |
| 879 return NEW; | |
| 880 } | |
| 881 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 882 } | |
| 883 } | |
| 884 | |
| 885 | |
| 886 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 887 // The thread ID field is only present starting in 1.5 | |
| 888 if (_tid_offset > 0) { | |
| 889 return java_thread->long_field(_tid_offset); | |
| 890 } else { | |
| 891 return 0; | |
| 892 } | |
| 893 } | |
| 894 | |
| 895 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 896 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 897 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 898 |
| 899 if (_park_blocker_offset > 0) { | |
| 900 return java_thread->obj_field(_park_blocker_offset); | |
| 901 } | |
| 902 | |
| 903 return NULL; | |
| 904 } | |
| 905 | |
| 906 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 907 if (_park_event_offset > 0) { | |
| 908 return java_thread->long_field(_park_event_offset); | |
| 909 } | |
| 910 return 0; | |
| 911 } | |
| 912 | |
| 913 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 914 if (_park_event_offset > 0) { | |
| 915 java_thread->long_field_put(_park_event_offset, ptr); | |
| 916 return true; | |
| 917 } | |
| 918 return false; | |
| 919 } | |
| 920 | |
| 921 | |
| 922 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 923 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 924 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 925 switch (status) { | |
| 926 case NEW : return "NEW"; | |
| 927 case RUNNABLE : return "RUNNABLE"; | |
| 928 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 929 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 930 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 931 case PARKED : return "WAITING (parking)"; | |
| 932 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 933 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 934 case TERMINATED : return "TERMINATED"; | |
| 935 default : return "UNKNOWN"; | |
| 936 }; | |
| 937 } | |
| 938 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 939 int java_lang_ThreadGroup::_name_offset = 0; | |
| 940 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 941 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 942 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 943 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 944 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 945 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 946 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 947 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 948 | |
| 949 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 950 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 951 return java_thread_group->obj_field(_parent_offset); | |
| 952 } | |
| 953 | |
| 954 // ("name as oop" accessor is not necessary) | |
| 955 | |
| 956 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 957 oop name = java_thread_group->obj_field(_name_offset); | |
| 958 // ThreadGroup.name can be null | |
| 959 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 960 } | |
| 961 | |
| 962 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 963 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 964 return java_thread_group->int_field(_nthreads_offset); | |
| 965 } | |
| 966 | |
| 967 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 968 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 969 assert(threads != NULL, "threadgroups should have threads"); | |
| 970 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 971 return objArrayOop(threads); | |
| 972 } | |
| 973 | |
| 974 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 975 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 976 return java_thread_group->int_field(_ngroups_offset); | |
| 977 } | |
| 978 | |
| 979 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 980 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 981 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 982 return objArrayOop(groups); | |
| 983 } | |
| 984 | |
| 985 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 986 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 987 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 988 } | |
| 989 | |
| 990 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 991 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 992 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 993 } | |
| 994 | |
| 995 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 996 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 997 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 998 } | |
| 999 | |
| 1000 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1001 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1002 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1003 } | |
| 1004 | |
| 1005 void java_lang_ThreadGroup::compute_offsets() { | |
| 1006 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1007 | |
| 1142 | 1008 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1009 |
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1010 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1011 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1012 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1013 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1014 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1015 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1016 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1017 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1018 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1019 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1020 } |
| 1021 | |
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1022 oop java_lang_Throwable::unassigned_stacktrace() { |
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1023 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1024 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1025 if (UseCompressedOops) { |
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1026 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1027 } else { |
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1028 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1029 } |
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1030 } |
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1031 |
| 0 | 1032 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1033 return throwable->obj_field_acquire(backtrace_offset); | |
| 1034 } | |
| 1035 | |
| 1036 | |
| 1037 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1038 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1039 } | |
| 1040 | |
| 1041 | |
| 1042 oop java_lang_Throwable::message(oop throwable) { | |
| 1043 return throwable->obj_field(detailMessage_offset); | |
| 1044 } | |
| 1045 | |
| 1046 | |
| 1047 oop java_lang_Throwable::message(Handle throwable) { | |
| 1048 return throwable->obj_field(detailMessage_offset); | |
| 1049 } | |
| 1050 | |
| 1051 | |
| 1052 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1053 throwable->obj_field_put(detailMessage_offset, value); | |
| 1054 } | |
| 1055 | |
| 1056 | |
|
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1057 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1058 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1059 } |
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1060 |
| 0 | 1061 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1062 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
|
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1063 set_stacktrace(throwable, NULL); |
| 0 | 1064 } |
| 1065 | |
| 1066 | |
| 1067 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1068 ResourceMark rm; | |
| 1069 klassOop k = throwable->klass(); | |
| 1070 assert(k != NULL, "just checking"); | |
| 1071 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1072 oop msg = message(throwable); | |
| 1073 if (msg != NULL) { | |
| 1074 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1075 } | |
| 1076 } | |
| 1077 | |
| 1078 | |
| 1079 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1080 ResourceMark rm; | |
| 1081 klassOop k = throwable->klass(); | |
| 1082 assert(k != NULL, "just checking"); | |
| 1083 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1084 oop msg = message(throwable); | |
| 1085 if (msg != NULL) { | |
| 1086 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1087 } | |
| 1088 } | |
| 1089 | |
| 1090 // Print stack trace element to resource allocated buffer | |
| 1091 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1092 // Get strings and string lengths | |
| 1093 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1094 const char* klass_name = klass->external_name(); | |
| 1095 int buf_len = (int)strlen(klass_name); | |
| 1096 char* source_file_name; | |
| 1097 if (klass->source_file_name() == NULL) { | |
| 1098 source_file_name = NULL; | |
| 1099 } else { | |
| 1100 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1101 buf_len += (int)strlen(source_file_name); | |
| 1102 } | |
| 1103 char* method_name = method->name()->as_C_string(); | |
| 1104 buf_len += (int)strlen(method_name); | |
| 1105 | |
| 1106 // Allocate temporary buffer with extra space for formatting and line number | |
| 1107 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1108 | |
| 1109 // Print stack trace line in buffer | |
| 1110 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1111 if (method->is_native()) { | |
| 1112 strcat(buf, "(Native Method)"); | |
| 1113 } else { | |
| 1114 int line_number = method->line_number_from_bci(bci); | |
| 1115 if (source_file_name != NULL && (line_number != -1)) { | |
| 1116 // Sourcename and linenumber | |
| 1117 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1118 } else if (source_file_name != NULL) { | |
| 1119 // Just sourcename | |
| 1120 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1121 } else { | |
| 1122 // Neither soucename and linenumber | |
| 1123 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1124 } | |
| 1125 nmethod* nm = method->code(); | |
| 1126 if (WizardMode && nm != NULL) { | |
|
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1127 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1128 } |
| 1129 } | |
| 1130 | |
| 1131 return buf; | |
| 1132 } | |
| 1133 | |
| 1134 | |
| 1135 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1136 ResourceMark rm; | |
| 1137 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1138 print_to_stream(stream, buf); | |
| 1139 } | |
| 1140 | |
| 1141 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1142 ResourceMark rm; | |
| 1143 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1144 st->print_cr("%s", buf); | |
| 1145 } | |
| 1146 | |
| 1147 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1148 if (stream.is_null()) { | |
| 1149 tty->print_cr("%s", str); | |
| 1150 } else { | |
| 1151 EXCEPTION_MARK; | |
| 1152 JavaValue result(T_VOID); | |
| 1153 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1154 if (!HAS_PENDING_EXCEPTION) { | |
| 1155 JavaCalls::call_virtual(&result, | |
| 1156 stream, | |
| 1157 KlassHandle(THREAD, stream->klass()), | |
|
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1158 vmSymbols::println_name(), |
|
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|
1159 vmSymbols::char_array_void_signature(), |
| 0 | 1160 arg, |
| 1161 THREAD); | |
| 1162 } | |
| 1163 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1164 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1165 } | |
| 1166 | |
| 1167 } | |
| 1168 | |
| 1169 | |
| 1170 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1171 return "\t<<no stack trace available>>"; | |
| 1172 } | |
| 1173 | |
| 1174 | |
| 1175 // Currently used only for exceptions occurring during startup | |
| 1176 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1177 Thread *THREAD = Thread::current(); | |
| 1178 Handle h_throwable(THREAD, throwable); | |
| 1179 while (h_throwable.not_null()) { | |
| 1180 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1181 if (result.is_null()) { | |
| 1182 st->print_cr(no_stack_trace_message()); | |
| 1183 return; | |
| 1184 } | |
| 1185 | |
| 1186 while (result.not_null()) { | |
| 1187 objArrayHandle methods (THREAD, | |
| 1188 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1189 typeArrayHandle bcis (THREAD, | |
| 1190 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1191 | |
| 1192 if (methods.is_null() || bcis.is_null()) { | |
| 1193 st->print_cr(no_stack_trace_message()); | |
| 1194 return; | |
| 1195 } | |
| 1196 | |
| 1197 int length = methods()->length(); | |
| 1198 for (int index = 0; index < length; index++) { | |
| 1199 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1200 if (method == NULL) goto handle_cause; | |
| 1201 int bci = bcis->ushort_at(index); | |
| 1202 print_stack_element(st, method, bci); | |
| 1203 } | |
| 1204 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1205 } | |
| 1206 handle_cause: | |
| 1207 { | |
| 1208 EXCEPTION_MARK; | |
| 1209 JavaValue result(T_OBJECT); | |
| 1210 JavaCalls::call_virtual(&result, | |
| 1211 h_throwable, | |
| 1212 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1213 vmSymbols::getCause_name(), |
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1214 vmSymbols::void_throwable_signature(), |
| 0 | 1215 THREAD); |
| 1216 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1217 if (HAS_PENDING_EXCEPTION) { | |
| 1218 CLEAR_PENDING_EXCEPTION; | |
| 1219 h_throwable = Handle(); | |
| 1220 } else { | |
| 1221 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1222 if (h_throwable.not_null()) { | |
| 1223 st->print("Caused by: "); | |
| 1224 print(h_throwable, st); | |
| 1225 st->cr(); | |
| 1226 } | |
| 1227 } | |
| 1228 } | |
| 1229 } | |
| 1230 } | |
| 1231 | |
| 1232 | |
| 1233 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1234 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1235 Thread *thread = Thread::current(); | |
| 1236 Handle stream(thread, print_stream); | |
| 1237 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1238 if (result.is_null()) { | |
| 1239 print_to_stream(stream, no_stack_trace_message()); | |
| 1240 return; | |
| 1241 } | |
| 1242 | |
| 1243 while (result.not_null()) { | |
| 1244 objArrayHandle methods (thread, | |
| 1245 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1246 typeArrayHandle bcis (thread, | |
| 1247 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1248 | |
| 1249 if (methods.is_null() || bcis.is_null()) { | |
| 1250 print_to_stream(stream, no_stack_trace_message()); | |
| 1251 return; | |
| 1252 } | |
| 1253 | |
| 1254 int length = methods()->length(); | |
| 1255 for (int index = 0; index < length; index++) { | |
| 1256 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1257 if (method == NULL) return; | |
| 1258 int bci = bcis->ushort_at(index); | |
| 1259 print_stack_element(stream, method, bci); | |
| 1260 } | |
| 1261 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1262 } | |
| 1263 } | |
| 1264 | |
| 1265 // This class provides a simple wrapper over the internal structure of | |
| 1266 // exception backtrace to insulate users of the backtrace from needing | |
| 1267 // to know what it looks like. | |
| 1268 class BacktraceBuilder: public StackObj { | |
| 1269 private: | |
| 1270 Handle _backtrace; | |
| 1271 objArrayOop _head; | |
| 1272 objArrayOop _methods; | |
| 1273 typeArrayOop _bcis; | |
| 1274 int _index; | |
| 1275 No_Safepoint_Verifier _nsv; | |
| 1276 | |
| 1277 public: | |
| 1278 | |
| 1279 enum { | |
| 1280 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1281 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1282 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1283 trace_size = java_lang_Throwable::trace_size, | |
| 1284 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1285 }; | |
| 1286 | |
| 1287 // constructor for new backtrace | |
|
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1288 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
| 0 | 1289 expand(CHECK); |
| 1290 _backtrace = _head; | |
| 1291 _index = 0; | |
| 1292 } | |
| 1293 | |
| 1294 void expand(TRAPS) { | |
| 1295 objArrayHandle old_head(THREAD, _head); | |
| 1296 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1297 | |
| 1298 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1299 objArrayHandle new_head(THREAD, head); | |
| 1300 | |
| 1301 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1302 objArrayHandle new_methods(THREAD, methods); | |
| 1303 | |
| 1304 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1305 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1306 | |
| 1307 if (!old_head.is_null()) { | |
| 1308 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1309 } | |
| 1310 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1311 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1312 | |
| 1313 _head = new_head(); | |
| 1314 _methods = new_methods(); | |
| 1315 _bcis = new_bcis(); | |
| 1316 _index = 0; | |
| 1317 } | |
| 1318 | |
| 1319 oop backtrace() { | |
| 1320 return _backtrace(); | |
| 1321 } | |
| 1322 | |
| 1323 inline void push(methodOop method, short bci, TRAPS) { | |
| 1324 if (_index >= trace_chunk_size) { | |
| 1325 methodHandle mhandle(THREAD, method); | |
| 1326 expand(CHECK); | |
| 1327 method = mhandle(); | |
| 1328 } | |
| 1329 | |
|
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1330 _methods->obj_at_put(_index, method); |
| 0 | 1331 _bcis->ushort_at_put(_index, bci); |
| 1332 _index++; | |
| 1333 } | |
| 1334 | |
| 1335 methodOop current_method() { | |
| 1336 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1337 return methodOop(_methods->obj_at(_index)); | |
| 1338 } | |
| 1339 | |
| 1340 jushort current_bci() { | |
| 1341 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1342 return _bcis->ushort_at(_index); | |
| 1343 } | |
| 1344 }; | |
| 1345 | |
| 1346 | |
|
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1347 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1348 if (!StackTraceInThrowable) return; |
| 1349 ResourceMark rm(THREAD); | |
| 1350 | |
| 1351 // Start out by clearing the backtrace for this object, in case the VM | |
| 1352 // runs out of memory while allocating the stack trace | |
| 1353 set_backtrace(throwable(), NULL); | |
| 1354 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1355 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1356 // refilling occurs | |
|
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1357 // This is unnecessary in 1.7+ but harmless |
| 0 | 1358 clear_stacktrace(throwable()); |
| 1359 } | |
| 1360 | |
| 1361 int max_depth = MaxJavaStackTraceDepth; | |
| 1362 JavaThread* thread = (JavaThread*)THREAD; | |
| 1363 BacktraceBuilder bt(CHECK); | |
| 1364 | |
|
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1365 // If there is no Java frame just return the method that was being called |
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1366 // with bci 0 |
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1367 if (!thread->has_last_Java_frame()) { |
|
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1368 if (max_depth >= 1 && method() != NULL) { |
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1369 bt.push(method(), 0, CHECK); |
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1370 set_backtrace(throwable(), bt.backtrace()); |
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1371 } |
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1372 return; |
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1373 } |
|
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1374 |
| 0 | 1375 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1376 // basically handles everything by hand. This significantly improved the | |
| 1377 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1378 // See bug 6333838 for more details. | |
| 1379 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1380 // trace as utilizing vframe. | |
| 1381 #ifdef ASSERT | |
| 1382 vframeStream st(thread); | |
| 1383 methodHandle st_method(THREAD, st.method()); | |
| 1384 #endif | |
| 1385 int total_count = 0; | |
| 1386 RegisterMap map(thread, false); | |
| 1387 int decode_offset = 0; | |
| 1388 nmethod* nm = NULL; | |
| 1389 bool skip_fillInStackTrace_check = false; | |
| 1390 bool skip_throwableInit_check = false; | |
| 1391 | |
| 1392 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1393 methodOop method = NULL; | |
| 1394 int bci = 0; | |
| 1395 | |
| 1396 // Compiled java method case. | |
| 1397 if (decode_offset != 0) { | |
| 1398 DebugInfoReadStream stream(nm, decode_offset); | |
| 1399 decode_offset = stream.read_int(); | |
| 1400 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1401 bci = stream.read_bci(); |
| 0 | 1402 } else { |
| 1403 if (fr.is_first_frame()) break; | |
| 1404 address pc = fr.pc(); | |
| 1405 if (fr.is_interpreted_frame()) { | |
| 1406 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1407 method = fr.interpreter_frame_method(); | |
| 1408 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1409 fr = fr.sender(&map); | |
| 1410 } else { | |
| 1411 CodeBlob* cb = fr.cb(); | |
| 1412 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1413 // but non nmethod | |
| 1414 fr = fr.sender(&map); | |
| 1415 if (cb == NULL || !cb->is_nmethod()) { | |
| 1416 continue; | |
| 1417 } | |
| 1418 nm = (nmethod*)cb; | |
| 1419 if (nm->method()->is_native()) { | |
| 1420 method = nm->method(); | |
| 1421 bci = 0; | |
| 1422 } else { | |
| 1423 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1424 decode_offset = pd->scope_decode_offset(); | |
| 1425 // if decode_offset is not equal to 0, it will execute the | |
| 1426 // "compiled java method case" at the beginning of the loop. | |
| 1427 continue; | |
| 1428 } | |
| 1429 } | |
| 1430 } | |
| 1431 #ifdef ASSERT | |
|
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1432 assert(st_method() == method && st.bci() == bci, |
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1433 "Wrong stack trace"); |
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1434 st.next(); |
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1435 // vframeStream::method isn't GC-safe so store off a copy |
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1436 // of the methodOop in case we GC. |
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1437 if (!st.at_end()) { |
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1438 st_method = st.method(); |
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1439 } |
| 0 | 1440 #endif |
|
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1441 |
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1442 // the format of the stacktrace will be: |
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1443 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1444 // - 0 or more <init> methods for the exception class (skipped) |
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1445 // - rest of the stack |
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1446 |
| 0 | 1447 if (!skip_fillInStackTrace_check) { |
|
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1448 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1449 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1450 throwable->is_a(method->method_holder())) { |
| 0 | 1451 continue; |
| 1452 } | |
|
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1453 else { |
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1454 skip_fillInStackTrace_check = true; // gone past them all |
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1455 } |
| 0 | 1456 } |
| 1457 if (!skip_throwableInit_check) { | |
|
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1458 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1459 |
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1460 // skip <init> methods of the exception class and superclasses |
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1461 // This is simlar to classic VM. |
| 0 | 1462 if (method->name() == vmSymbols::object_initializer_name() && |
| 1463 throwable->is_a(method->method_holder())) { | |
| 1464 continue; | |
| 1465 } else { | |
|
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1466 // there are none or we've seen them all - either way stop checking |
| 0 | 1467 skip_throwableInit_check = true; |
| 1468 } | |
| 1469 } | |
| 1470 bt.push(method, bci, CHECK); | |
| 1471 total_count++; | |
| 1472 } | |
| 1473 | |
| 1474 // Put completed stack trace into throwable object | |
| 1475 set_backtrace(throwable(), bt.backtrace()); | |
| 1476 } | |
| 1477 | |
|
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1478 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1479 // No-op if stack trace is disabled |
| 1480 if (!StackTraceInThrowable) { | |
| 1481 return; | |
| 1482 } | |
| 1483 | |
| 1484 // Disable stack traces for some preallocated out of memory errors | |
| 1485 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1486 return; | |
| 1487 } | |
| 1488 | |
| 1489 PRESERVE_EXCEPTION_MARK; | |
| 1490 | |
| 1491 JavaThread* thread = JavaThread::active(); | |
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1492 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1493 // ignore exceptions thrown during stack trace filling |
| 1494 CLEAR_PENDING_EXCEPTION; | |
| 1495 } | |
| 1496 | |
| 1497 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1498 // Allocate stack trace - backtrace is created but not filled in | |
| 1499 | |
| 1500 // No-op if stack trace is disabled | |
| 1501 if (!StackTraceInThrowable) return; | |
| 1502 | |
| 1503 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1504 objArrayHandle backtrace (THREAD, h_oop); | |
| 1505 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1506 objArrayHandle methods (THREAD, m_oop); | |
| 1507 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1508 typeArrayHandle bcis(THREAD, b); | |
| 1509 | |
| 1510 // backtrace has space for one chunk (next is NULL) | |
| 1511 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1512 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1513 set_backtrace(throwable(), backtrace()); | |
| 1514 } | |
| 1515 | |
| 1516 | |
| 1517 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1518 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1519 | |
| 1520 // No-op if stack trace is disabled | |
| 1521 if (!StackTraceInThrowable) return; | |
| 1522 | |
| 1142 | 1523 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1524 |
| 1525 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1526 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1527 | |
| 1528 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1529 objArrayOop methods = objArrayOop(m); | |
| 1530 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1531 | |
| 1532 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1533 typeArrayOop bcis = typeArrayOop(b); | |
| 1534 assert(bcis != NULL, "bci array not preallocated"); | |
| 1535 | |
| 1536 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1537 | |
| 1538 JavaThread* thread = JavaThread::current(); | |
| 1539 ResourceMark rm(thread); | |
| 1540 vframeStream st(thread); | |
| 1541 | |
| 1542 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1543 // methods as preallocated errors aren't created by "java" code. | |
| 1544 | |
| 1545 // fill in as much stack trace as possible | |
| 1546 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1547 int chunk_count = 0; | |
| 1548 | |
| 1549 for (;!st.at_end(); st.next()) { | |
| 1550 // add element | |
| 1551 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1552 methods->obj_at_put(chunk_count, st.method()); | |
| 1553 | |
| 1554 chunk_count++; | |
| 1555 | |
| 1556 // Bail-out for deep stacks | |
| 1557 if (chunk_count >= max_chunks) break; | |
| 1558 } | |
|
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1559 |
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1560 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1561 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1562 // can be removed in a JDK using this JVM version |
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1563 if (JDK_Version::is_gte_jdk17x_version()) { |
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1564 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1565 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1566 } |
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1567 |
| 0 | 1568 } |
| 1569 | |
| 1570 | |
| 1571 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1572 if (throwable == NULL) { | |
| 1573 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1574 } | |
| 1575 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1576 int depth = 0; | |
| 1577 if (chunk != NULL) { | |
| 1578 // Iterate over chunks and count full ones | |
| 1579 while (true) { | |
| 1580 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1581 if (next == NULL) break; | |
| 1582 depth += trace_chunk_size; | |
| 1583 chunk = next; | |
| 1584 } | |
| 1585 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1586 // Count element in remaining partial chunk | |
| 1587 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1588 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1589 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1590 for (int i = 0; i < methods->length(); i++) { | |
| 1591 if (methods->obj_at(i) == NULL) break; | |
| 1592 depth++; | |
| 1593 } | |
| 1594 } | |
| 1595 return depth; | |
| 1596 } | |
| 1597 | |
| 1598 | |
| 1599 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1600 if (throwable == NULL) { | |
| 1601 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1602 } | |
| 1603 if (index < 0) { | |
| 1604 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1605 } | |
| 1606 // Compute how many chunks to skip and index into actual chunk | |
| 1607 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1608 int skip_chunks = index / trace_chunk_size; | |
| 1609 int chunk_index = index % trace_chunk_size; | |
| 1610 while (chunk != NULL && skip_chunks > 0) { | |
| 1611 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1612 skip_chunks--; | |
| 1613 } | |
| 1614 if (chunk == NULL) { | |
| 1615 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1616 } | |
| 1617 // Get method,bci from chunk | |
| 1618 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1619 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1620 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1621 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1622 int bci = bcis->ushort_at(chunk_index); | |
| 1623 // Chunk can be partial full | |
| 1624 if (method.is_null()) { | |
| 1625 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1626 } | |
| 1627 | |
| 1628 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1629 return element; | |
| 1630 } | |
| 1631 | |
| 1632 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1633 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1634 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1635 | |
| 1636 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1637 klassOop k = SystemDictionary::StackTraceElement_klass(); |
|
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1638 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1639 instanceKlassHandle ik (THREAD, k); |
| 1640 if (ik->should_be_initialized()) { | |
| 1641 ik->initialize(CHECK_0); | |
| 1642 } | |
| 1643 | |
| 1644 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1645 // Fill in class name | |
| 1646 ResourceMark rm(THREAD); | |
| 1647 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1648 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1649 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1650 // Fill in method name | |
| 1651 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1652 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1653 // Fill in source file name | |
|
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1654 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1655 oop filename = StringTable::intern(source, CHECK_0); |
| 1656 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1657 // File in source line number | |
| 1658 int line_number; | |
| 1659 if (method->is_native()) { | |
| 1660 // Negative value different from -1 below, enabling Java code in | |
| 1661 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1662 // "no LineNumberTable". | |
| 1663 line_number = -2; | |
| 1664 } else { | |
| 1665 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1666 line_number = method->line_number_from_bci(bci); | |
| 1667 } | |
| 1668 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1669 | |
| 1670 return element(); | |
| 1671 } | |
| 1672 | |
| 1673 | |
| 1674 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1675 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1676 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1677 } |
| 1678 | |
| 1679 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1680 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1681 return (jboolean) reflect->bool_field(override_offset); | |
| 1682 } | |
| 1683 | |
| 1684 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1685 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1686 reflect->bool_field_put(override_offset, (int) value); | |
| 1687 } | |
| 1688 | |
| 1689 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1690 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1691 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1692 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1693 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1694 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1695 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1696 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1697 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1698 // The generic signature and annotations fields are only present in 1.5 |
| 1699 signature_offset = -1; | |
| 1700 annotations_offset = -1; | |
| 1701 parameter_annotations_offset = -1; | |
| 1702 annotation_default_offset = -1; | |
|
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1703 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1704 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1705 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1706 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1707 } |
| 1708 | |
| 1709 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1710 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1711 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1712 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1713 // to one of the methods | |
| 1714 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1715 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1716 } | |
| 1717 | |
| 1718 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1719 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1720 return reflect->obj_field(clazz_offset); | |
| 1721 } | |
| 1722 | |
| 1723 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1724 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1725 reflect->obj_field_put(clazz_offset, value); | |
| 1726 } | |
| 1727 | |
| 1728 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1729 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1730 return reflect->int_field(slot_offset); | |
| 1731 } | |
| 1732 | |
| 1733 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1734 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1735 reflect->int_field_put(slot_offset, value); | |
| 1736 } | |
| 1737 | |
| 1738 oop java_lang_reflect_Method::name(oop method) { | |
| 1739 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1740 return method->obj_field(name_offset); | |
| 1741 } | |
| 1742 | |
| 1743 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1744 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1745 method->obj_field_put(name_offset, value); | |
| 1746 } | |
| 1747 | |
| 1748 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1749 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1750 return method->obj_field(returnType_offset); | |
| 1751 } | |
| 1752 | |
| 1753 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1754 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1755 method->obj_field_put(returnType_offset, value); | |
| 1756 } | |
| 1757 | |
| 1758 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1759 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1760 return method->obj_field(parameterTypes_offset); | |
| 1761 } | |
| 1762 | |
| 1763 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1764 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1765 method->obj_field_put(parameterTypes_offset, value); | |
| 1766 } | |
| 1767 | |
| 1768 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1769 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1770 return method->obj_field(exceptionTypes_offset); | |
| 1771 } | |
| 1772 | |
| 1773 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1774 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1775 method->obj_field_put(exceptionTypes_offset, value); | |
| 1776 } | |
| 1777 | |
| 1778 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1779 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1780 return method->int_field(modifiers_offset); | |
| 1781 } | |
| 1782 | |
| 1783 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1784 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1785 method->int_field_put(modifiers_offset, value); | |
| 1786 } | |
| 1787 | |
| 1788 bool java_lang_reflect_Method::has_signature_field() { | |
| 1789 return (signature_offset >= 0); | |
| 1790 } | |
| 1791 | |
| 1792 oop java_lang_reflect_Method::signature(oop method) { | |
| 1793 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1794 assert(has_signature_field(), "signature field must be present"); | |
| 1795 return method->obj_field(signature_offset); | |
| 1796 } | |
| 1797 | |
| 1798 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1799 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1800 assert(has_signature_field(), "signature field must be present"); | |
| 1801 method->obj_field_put(signature_offset, value); | |
| 1802 } | |
| 1803 | |
| 1804 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1805 return (annotations_offset >= 0); | |
| 1806 } | |
| 1807 | |
| 1808 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1809 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1810 assert(has_annotations_field(), "annotations field must be present"); | |
| 1811 return method->obj_field(annotations_offset); | |
| 1812 } | |
| 1813 | |
| 1814 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1815 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1816 assert(has_annotations_field(), "annotations field must be present"); | |
| 1817 method->obj_field_put(annotations_offset, value); | |
| 1818 } | |
| 1819 | |
| 1820 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1821 return (parameter_annotations_offset >= 0); | |
| 1822 } | |
| 1823 | |
| 1824 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1825 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1826 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1827 return method->obj_field(parameter_annotations_offset); | |
| 1828 } | |
| 1829 | |
| 1830 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1831 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1832 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1833 method->obj_field_put(parameter_annotations_offset, value); | |
| 1834 } | |
| 1835 | |
| 1836 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1837 return (annotation_default_offset >= 0); | |
| 1838 } | |
| 1839 | |
| 1840 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1841 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1842 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1843 return method->obj_field(annotation_default_offset); | |
| 1844 } | |
| 1845 | |
| 1846 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1847 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1848 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1849 method->obj_field_put(annotation_default_offset, value); | |
| 1850 } | |
| 1851 | |
| 1852 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1853 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1854 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1855 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1856 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1857 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1858 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1859 // The generic signature and annotations fields are only present in 1.5 |
| 1860 signature_offset = -1; | |
| 1861 annotations_offset = -1; | |
| 1862 parameter_annotations_offset = -1; | |
|
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1863 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1864 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1865 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1866 } |
| 1867 | |
| 1868 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1869 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1870 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1871 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1872 instanceKlassHandle klass (THREAD, k); | |
| 1873 // Ensure it is initialized | |
| 1874 klass->initialize(CHECK_NH); | |
| 1875 return klass->allocate_instance_handle(CHECK_NH); | |
| 1876 } | |
| 1877 | |
| 1878 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1879 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1880 return reflect->obj_field(clazz_offset); | |
| 1881 } | |
| 1882 | |
| 1883 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1884 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1885 reflect->obj_field_put(clazz_offset, value); | |
| 1886 } | |
| 1887 | |
| 1888 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1889 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1890 return constructor->obj_field(parameterTypes_offset); | |
| 1891 } | |
| 1892 | |
| 1893 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1894 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1895 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1896 } | |
| 1897 | |
| 1898 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1899 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1900 return constructor->obj_field(exceptionTypes_offset); | |
| 1901 } | |
| 1902 | |
| 1903 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1904 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1905 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1906 } | |
| 1907 | |
| 1908 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1909 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1910 return reflect->int_field(slot_offset); | |
| 1911 } | |
| 1912 | |
| 1913 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1914 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1915 reflect->int_field_put(slot_offset, value); | |
| 1916 } | |
| 1917 | |
| 1918 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1919 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1920 return constructor->int_field(modifiers_offset); | |
| 1921 } | |
| 1922 | |
| 1923 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1924 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1925 constructor->int_field_put(modifiers_offset, value); | |
| 1926 } | |
| 1927 | |
| 1928 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1929 return (signature_offset >= 0); | |
| 1930 } | |
| 1931 | |
| 1932 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1933 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1934 assert(has_signature_field(), "signature field must be present"); | |
| 1935 return constructor->obj_field(signature_offset); | |
| 1936 } | |
| 1937 | |
| 1938 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1939 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1940 assert(has_signature_field(), "signature field must be present"); | |
| 1941 constructor->obj_field_put(signature_offset, value); | |
| 1942 } | |
| 1943 | |
| 1944 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1945 return (annotations_offset >= 0); | |
| 1946 } | |
| 1947 | |
| 1948 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1949 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1950 assert(has_annotations_field(), "annotations field must be present"); | |
| 1951 return constructor->obj_field(annotations_offset); | |
| 1952 } | |
| 1953 | |
| 1954 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1955 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1956 assert(has_annotations_field(), "annotations field must be present"); | |
| 1957 constructor->obj_field_put(annotations_offset, value); | |
| 1958 } | |
| 1959 | |
| 1960 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1961 return (parameter_annotations_offset >= 0); | |
| 1962 } | |
| 1963 | |
| 1964 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1965 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1966 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1967 return method->obj_field(parameter_annotations_offset); | |
| 1968 } | |
| 1969 | |
| 1970 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1971 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1972 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1973 method->obj_field_put(parameter_annotations_offset, value); | |
| 1974 } | |
| 1975 | |
| 1976 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1977 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1978 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1979 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1980 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1981 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1982 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1983 // The generic signature and annotations fields are only present in 1.5 |
| 1984 signature_offset = -1; | |
| 1985 annotations_offset = -1; | |
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1986 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1987 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1988 } |
| 1989 | |
| 1990 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1991 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1992 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 1993 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1994 instanceKlassHandle klass (THREAD, k); | |
| 1995 // Ensure it is initialized | |
| 1996 klass->initialize(CHECK_NH); | |
| 1997 return klass->allocate_instance_handle(CHECK_NH); | |
| 1998 } | |
| 1999 | |
| 2000 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2001 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2002 return reflect->obj_field(clazz_offset); | |
| 2003 } | |
| 2004 | |
| 2005 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2006 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2007 reflect->obj_field_put(clazz_offset, value); | |
| 2008 } | |
| 2009 | |
| 2010 oop java_lang_reflect_Field::name(oop field) { | |
| 2011 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2012 return field->obj_field(name_offset); | |
| 2013 } | |
| 2014 | |
| 2015 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2016 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2017 field->obj_field_put(name_offset, value); | |
| 2018 } | |
| 2019 | |
| 2020 oop java_lang_reflect_Field::type(oop field) { | |
| 2021 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2022 return field->obj_field(type_offset); | |
| 2023 } | |
| 2024 | |
| 2025 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2026 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2027 field->obj_field_put(type_offset, value); | |
| 2028 } | |
| 2029 | |
| 2030 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2031 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2032 return reflect->int_field(slot_offset); | |
| 2033 } | |
| 2034 | |
| 2035 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2036 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2037 reflect->int_field_put(slot_offset, value); | |
| 2038 } | |
| 2039 | |
| 2040 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2041 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2042 return field->int_field(modifiers_offset); | |
| 2043 } | |
| 2044 | |
| 2045 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2046 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2047 field->int_field_put(modifiers_offset, value); | |
| 2048 } | |
| 2049 | |
| 2050 bool java_lang_reflect_Field::has_signature_field() { | |
| 2051 return (signature_offset >= 0); | |
| 2052 } | |
| 2053 | |
| 2054 oop java_lang_reflect_Field::signature(oop field) { | |
| 2055 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2056 assert(has_signature_field(), "signature field must be present"); | |
| 2057 return field->obj_field(signature_offset); | |
| 2058 } | |
| 2059 | |
| 2060 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2061 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2062 assert(has_signature_field(), "signature field must be present"); | |
| 2063 field->obj_field_put(signature_offset, value); | |
| 2064 } | |
| 2065 | |
| 2066 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2067 return (annotations_offset >= 0); | |
| 2068 } | |
| 2069 | |
| 2070 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2071 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2072 assert(has_annotations_field(), "annotations field must be present"); | |
| 2073 return field->obj_field(annotations_offset); | |
| 2074 } | |
| 2075 | |
| 2076 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2077 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2078 assert(has_annotations_field(), "annotations field must be present"); | |
| 2079 field->obj_field_put(annotations_offset, value); | |
| 2080 } | |
| 2081 | |
| 2082 | |
| 2083 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2084 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2085 // This null test can be removed post beta |
| 2086 if (k != NULL) { | |
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2087 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2088 } |
| 2089 } | |
| 2090 | |
| 2091 | |
| 2092 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2093 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2094 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2095 instanceKlassHandle klass (THREAD, k); |
| 2096 // Ensure it is initialized | |
| 2097 klass->initialize(CHECK_NH); | |
| 2098 return klass->allocate_instance_handle(CHECK_NH); | |
| 2099 } | |
| 2100 | |
| 2101 | |
| 2102 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2103 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2104 return reflect->obj_field(_cp_oop_offset); | |
| 2105 } | |
| 2106 | |
| 2107 | |
| 2108 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2109 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2110 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2111 } | |
| 2112 | |
| 2113 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2114 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2115 // This null test can be removed post beta |
| 2116 if (k != NULL) { | |
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2117 compute_offset(_base_offset, k, |
| 0 | 2118 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2119 } | |
| 2120 } | |
| 2121 | |
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2122 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2123 klassOop k = SystemDictionary::box_klass(type); |
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2124 if (k == NULL) return NULL; |
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2125 instanceKlassHandle h (THREAD, k); |
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2126 if (!h->is_initialized()) h->initialize(CHECK_0); |
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2127 return h->allocate_instance(THREAD); |
| 0 | 2128 } |
| 2129 | |
| 2130 | |
| 2131 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
132
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2132 oop box = initialize_and_allocate(type, CHECK_0); |
|
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|
2133 if (box == NULL) return NULL; |
| 0 | 2134 switch (type) { |
| 2135 case T_BOOLEAN: | |
| 2136 box->bool_field_put(value_offset, value->z); | |
| 2137 break; | |
| 2138 case T_CHAR: | |
| 2139 box->char_field_put(value_offset, value->c); | |
| 2140 break; | |
| 2141 case T_FLOAT: | |
| 2142 box->float_field_put(value_offset, value->f); | |
| 2143 break; | |
| 2144 case T_DOUBLE: | |
|
165
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|
2145 box->double_field_put(long_value_offset, value->d); |
| 0 | 2146 break; |
| 2147 case T_BYTE: | |
| 2148 box->byte_field_put(value_offset, value->b); | |
| 2149 break; | |
| 2150 case T_SHORT: | |
| 2151 box->short_field_put(value_offset, value->s); | |
| 2152 break; | |
| 2153 case T_INT: | |
| 2154 box->int_field_put(value_offset, value->i); | |
| 2155 break; | |
| 2156 case T_LONG: | |
|
165
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|
2157 box->long_field_put(long_value_offset, value->j); |
| 0 | 2158 break; |
| 2159 default: | |
| 2160 return NULL; | |
| 2161 } | |
| 2162 return box; | |
| 2163 } | |
| 2164 | |
| 2165 | |
|
132
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|
2166 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
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|
2167 if (box == NULL) return T_ILLEGAL; |
|
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|
2168 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2169 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
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|
2170 return T_ILLEGAL; |
|
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|
2171 return type; |
|
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|
2172 } |
|
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|
2173 |
|
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|
2174 |
| 0 | 2175 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
132
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|
2176 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2177 switch (type) { |
|
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|
2178 case T_BOOLEAN: |
| 0 | 2179 value->z = box->bool_field(value_offset); |
|
132
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|
2180 break; |
|
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|
2181 case T_CHAR: |
| 0 | 2182 value->c = box->char_field(value_offset); |
|
132
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|
2183 break; |
|
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|
2184 case T_FLOAT: |
| 0 | 2185 value->f = box->float_field(value_offset); |
|
132
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|
2186 break; |
|
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|
2187 case T_DOUBLE: |
|
165
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|
2188 value->d = box->double_field(long_value_offset); |
|
132
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|
2189 break; |
|
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|
2190 case T_BYTE: |
| 0 | 2191 value->b = box->byte_field(value_offset); |
|
132
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|
2192 break; |
|
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|
2193 case T_SHORT: |
| 0 | 2194 value->s = box->short_field(value_offset); |
|
132
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|
2195 break; |
|
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|
2196 case T_INT: |
| 0 | 2197 value->i = box->int_field(value_offset); |
|
132
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|
2198 break; |
|
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|
2199 case T_LONG: |
|
165
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|
2200 value->j = box->long_field(long_value_offset); |
|
132
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|
2201 break; |
|
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|
2202 default: |
|
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|
2203 return T_ILLEGAL; |
|
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|
2204 } // end switch |
|
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|
2205 return type; |
| 0 | 2206 } |
| 2207 | |
| 2208 | |
| 2209 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
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|
2210 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2211 switch (type) { |
|
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|
2212 case T_BOOLEAN: |
| 0 | 2213 box->bool_field_put(value_offset, value->z); |
|
132
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|
2214 break; |
|
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|
2215 case T_CHAR: |
| 0 | 2216 box->char_field_put(value_offset, value->c); |
|
132
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|
2217 break; |
|
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|
2218 case T_FLOAT: |
| 0 | 2219 box->float_field_put(value_offset, value->f); |
|
132
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|
2220 break; |
|
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113
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|
2221 case T_DOUBLE: |
|
165
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|
2222 box->double_field_put(long_value_offset, value->d); |
|
132
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|
2223 break; |
|
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|
2224 case T_BYTE: |
| 0 | 2225 box->byte_field_put(value_offset, value->b); |
|
132
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|
2226 break; |
|
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113
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|
2227 case T_SHORT: |
| 0 | 2228 box->short_field_put(value_offset, value->s); |
|
132
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|
2229 break; |
|
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113
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|
2230 case T_INT: |
| 0 | 2231 box->int_field_put(value_offset, value->i); |
|
132
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|
2232 break; |
|
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113
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|
2233 case T_LONG: |
|
165
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|
2234 box->long_field_put(long_value_offset, value->j); |
|
132
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|
2235 break; |
|
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jrose
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113
diff
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|
2236 default: |
|
60b728ec77c1
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jrose
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113
diff
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|
2237 return T_ILLEGAL; |
|
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jrose
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113
diff
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|
2238 } // end switch |
|
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113
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|
2239 return type; |
| 0 | 2240 } |
| 2241 | |
| 2242 | |
|
665
c89f86385056
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jrose
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579
diff
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|
2243 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2244 switch (type) { |
|
c89f86385056
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579
diff
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|
2245 case T_BOOLEAN: st->print("%s", value->z ? "true" : "false"); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2246 case T_CHAR: st->print("%d", value->c); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2247 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2248 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2249 case T_INT: st->print("%d", value->i); break; |
|
c89f86385056
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jrose
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579
diff
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|
2250 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2251 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2252 case T_DOUBLE: st->print("%lf", value->d); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2253 default: st->print("type %d?", type); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2254 } |
|
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jrose
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579
diff
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|
2255 } |
|
c89f86385056
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jrose
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579
diff
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|
2256 |
|
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|
2257 |
| 0 | 2258 // Support for java_lang_ref_Reference |
|
113
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|
2259 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2260 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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|
2261 address addr = ik->static_field_addr(static_lock_offset); |
|
113
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|
2262 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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98
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|
2263 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
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|
2264 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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|
2265 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
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|
2266 } |
| 0 | 2267 } |
| 2268 | |
|
113
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|
2269 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2270 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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7017732: move static fields into Class to prepare for perm gen removal
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|
2271 address addr = ik->static_field_addr(static_pending_offset); |
|
113
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|
2272 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
ba764ed4b6f2
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|
2273 return (HeapWord*)addr; |
| 0 | 2274 } |
| 2275 | |
|
113
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|
2276 oop java_lang_ref_Reference::pending_list() { |
|
ba764ed4b6f2
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coleenp
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98
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|
2277 char *addr = (char *)pending_list_addr(); |
|
ba764ed4b6f2
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coleenp
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98
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|
2278 if (UseCompressedOops) { |
|
ba764ed4b6f2
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98
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|
2279 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
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|
2280 } else { |
|
ba764ed4b6f2
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98
diff
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|
2281 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
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|
2282 } |
| 0 | 2283 } |
| 2284 | |
| 2285 | |
| 2286 // Support for java_lang_ref_SoftReference | |
| 2287 | |
| 2288 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2289 return ref->long_field(timestamp_offset); | |
| 2290 } | |
| 2291 | |
| 2292 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2293 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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7017732: move static fields into Class to prepare for perm gen removal
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parents:
2357
diff
changeset
|
2294 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
|
2295 return *offset; |
| 0 | 2296 } |
| 2297 | |
| 2298 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2299 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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parents:
2357
diff
changeset
|
2300 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
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2357
diff
changeset
|
2301 *offset = value; |
| 0 | 2302 } |
| 2303 | |
| 2304 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2305 // Support for java_lang_invoke_MethodHandle |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2306 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2307 int java_lang_invoke_MethodHandle::_type_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2308 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
|
2309 int java_lang_invoke_MethodHandle::_vmentry_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
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|
2310 int java_lang_invoke_MethodHandle::_vmslots_offset; |
|
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2311 |
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2312 int java_lang_invoke_MemberName::_clazz_offset; |
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2313 int java_lang_invoke_MemberName::_name_offset; |
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2314 int java_lang_invoke_MemberName::_type_offset; |
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2315 int java_lang_invoke_MemberName::_flags_offset; |
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2316 int java_lang_invoke_MemberName::_vmtarget_offset; |
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2317 int java_lang_invoke_MemberName::_vmindex_offset; |
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2318 |
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2319 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
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2320 |
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2321 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
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2322 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
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2323 |
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2324 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2325 |
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2326 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 710 | 2327 klassOop k = SystemDictionary::MethodHandle_klass(); |
|
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2328 if (k != NULL && EnableInvokeDynamic) { |
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2329 bool allow_super = false; |
|
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2330 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
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2331 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
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2332 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
| 710 | 2333 |
| 2334 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2335 // It is optional pending experiments to keep or toss. | |
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2336 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
| 710 | 2337 } |
| 2338 } | |
| 2339 | |
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2340 void java_lang_invoke_MemberName::compute_offsets() { |
| 710 | 2341 klassOop k = SystemDictionary::MemberName_klass(); |
|
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2342 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2343 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
| 2344 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2345 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2346 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2347 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2348 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2349 } | |
| 2350 } | |
| 2351 | |
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2352 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2353 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
|
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2354 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2355 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); |
| 2356 } | |
| 2357 } | |
| 2358 | |
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2359 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2360 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
|
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2361 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2362 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
| 2363 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2364 } | |
| 2365 } | |
| 2366 | |
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2367 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2368 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
|
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2369 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2370 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
| 2371 } | |
| 2372 } | |
| 2373 | |
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2374 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2375 return mh->obj_field(_type_offset); |
| 2376 } | |
| 2377 | |
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2378 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2379 mh->obj_field_put(_type_offset, mtype); |
| 2380 } | |
| 2381 | |
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2382 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2383 int vmslots_offset = _vmslots_offset; |
| 2384 if (vmslots_offset != 0) { | |
| 2385 #ifdef ASSERT | |
| 2386 int x = mh->int_field(vmslots_offset); | |
| 2387 int y = compute_vmslots(mh); | |
| 2388 assert(x == y, "correct hoisted value"); | |
| 2389 #endif | |
| 2390 return mh->int_field(vmslots_offset); | |
| 2391 } else { | |
| 2392 return compute_vmslots(mh); | |
| 2393 } | |
| 2394 } | |
| 2395 | |
| 2396 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
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2397 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
| 710 | 2398 int vmslots_offset = _vmslots_offset; |
| 2399 if (vmslots_offset != 0) { | |
| 2400 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2401 } | |
| 2402 } | |
| 2403 | |
| 2404 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2405 // required to carry the arguments of this MH | |
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2406 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
| 710 | 2407 oop mtype = type(mh); |
| 2408 if (mtype == NULL) return 0; // Java code would get NPE | |
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2409 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2410 if (form == NULL) return 0; // Java code would get NPE |
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2411 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2412 } |
| 2413 | |
| 2414 // fetch the low-level entry point for this mh | |
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2415 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2416 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2417 } | |
| 2418 | |
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2419 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2420 assert(_vmentry_offset != 0, "must be present"); |
| 2421 | |
| 2422 // This is always the final step that initializes a valid method handle: | |
| 2423 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2424 | |
| 2425 // There should be enough memory barriers on exit from native methods | |
| 2426 // to ensure that the MH is fully initialized to all threads before | |
| 2427 // Java code can publish it in global data structures. | |
| 2428 // But just in case, we use release_address_field_put. | |
| 2429 } | |
| 2430 | |
| 2431 /// MemberName accessors | |
| 2432 | |
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2433 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2434 assert(is_instance(mname), "wrong type"); |
| 2435 return mname->obj_field(_clazz_offset); | |
| 2436 } | |
| 2437 | |
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2438 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2439 assert(is_instance(mname), "wrong type"); |
| 2440 mname->obj_field_put(_clazz_offset, clazz); | |
| 2441 } | |
| 2442 | |
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2443 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2444 assert(is_instance(mname), "wrong type"); |
| 2445 return mname->obj_field(_name_offset); | |
| 2446 } | |
| 2447 | |
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2448 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2449 assert(is_instance(mname), "wrong type"); |
| 2450 mname->obj_field_put(_name_offset, name); | |
| 2451 } | |
| 2452 | |
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2453 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2454 assert(is_instance(mname), "wrong type"); |
| 2455 return mname->obj_field(_type_offset); | |
| 2456 } | |
| 2457 | |
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2458 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2459 assert(is_instance(mname), "wrong type"); |
| 2460 mname->obj_field_put(_type_offset, type); | |
| 2461 } | |
| 2462 | |
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2463 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2464 assert(is_instance(mname), "wrong type"); |
| 2465 return mname->int_field(_flags_offset); | |
| 2466 } | |
| 2467 | |
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2468 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2469 assert(is_instance(mname), "wrong type"); |
| 2470 mname->int_field_put(_flags_offset, flags); | |
| 2471 } | |
| 2472 | |
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2473 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2474 assert(is_instance(mname), "wrong type"); |
| 2475 return mname->obj_field(_vmtarget_offset); | |
| 2476 } | |
| 2477 | |
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2478 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2479 assert(is_instance(mname), "wrong type"); |
| 2480 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2481 } | |
| 2482 | |
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2483 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2484 assert(is_instance(mname), "wrong type"); |
| 2485 return mname->int_field(_vmindex_offset); | |
| 2486 } | |
| 2487 | |
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2488 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2489 assert(is_instance(mname), "wrong type"); |
| 2490 mname->int_field_put(_vmindex_offset, index); | |
| 2491 } | |
| 2492 | |
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2493 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2494 assert(is_instance(mh), "MH only"); |
| 2495 return mh->obj_field(_vmtarget_offset); | |
| 2496 } | |
| 2497 | |
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2498 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2499 assert(is_instance(mh), "MH only"); |
| 2500 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2501 } | |
| 2502 | |
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2503 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2504 assert(is_instance(mh), "DMH only"); |
| 2505 return mh->int_field(_vmindex_offset); | |
| 2506 } | |
| 2507 | |
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2508 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2509 assert(is_instance(mh), "DMH only"); |
| 2510 mh->int_field_put(_vmindex_offset, index); | |
| 2511 } | |
| 2512 | |
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2513 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2514 assert(is_instance(mh), "BMH only"); |
| 2515 return mh->int_field(_vmargslot_offset); | |
| 2516 } | |
| 2517 | |
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2518 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2519 assert(is_instance(mh), "BMH only"); |
| 2520 return mh->obj_field(_argument_offset); | |
| 2521 } | |
| 2522 | |
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2523 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2524 assert(is_instance(mh), "AMH only"); |
| 2525 return mh->int_field(_conversion_offset); | |
| 2526 } | |
| 2527 | |
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2528 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2529 assert(is_instance(mh), "AMH only"); |
| 2530 mh->int_field_put(_conversion_offset, conv); | |
| 2531 } | |
| 2532 | |
| 2533 | |
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2534 // Support for java_lang_invoke_MethodType |
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2535 |
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2536 int java_lang_invoke_MethodType::_rtype_offset; |
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2537 int java_lang_invoke_MethodType::_ptypes_offset; |
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2538 int java_lang_invoke_MethodType::_form_offset; |
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2539 |
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2540 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2541 klassOop k = SystemDictionary::MethodType_klass(); |
| 2542 if (k != NULL) { | |
| 2543 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2544 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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2545 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2546 } |
| 2547 } | |
| 2548 | |
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|
2549 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2550 st->print("("); |
| 2551 objArrayOop pts = ptypes(mt); | |
| 2552 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2553 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2554 } | |
| 2555 st->print(")"); | |
| 2556 java_lang_Class::print_signature(rtype(mt), st); | |
| 2557 } | |
| 2558 | |
|
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7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2559 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2560 ResourceMark rm; |
| 2561 stringStream buffer(128); | |
| 2562 print_signature(mt, &buffer); | |
| 2563 const char* sigstr = buffer.base(); | |
| 2564 int siglen = (int) buffer.size(); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2565 Symbol *name; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2566 if (!intern_if_not_found) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2567 name = SymbolTable::probe(sigstr, siglen); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2568 } else { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2569 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2570 } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2571 return name; |
| 710 | 2572 } |
| 2573 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2574 bool java_lang_invoke_MethodType::equals(oop mt1, oop mt2) { |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2575 if (rtype(mt1) != rtype(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2576 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2577 if (ptype_count(mt1) != ptype_count(mt2)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2578 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2579 for (int i = ptype_count(mt1) - 1; i >= 0; i--) { |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2580 if (ptype(mt1, i) != ptype(mt2, i)) |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2581 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2582 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2583 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2584 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2585 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2586 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2587 assert(is_instance(mt), "must be a MethodType"); |
| 2588 return mt->obj_field(_rtype_offset); | |
| 2589 } | |
| 2590 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2591 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2592 assert(is_instance(mt), "must be a MethodType"); |
| 2593 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2594 } | |
| 2595 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2596 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2597 assert(is_instance(mt), "must be a MethodType"); |
| 2598 return mt->obj_field(_form_offset); | |
| 2599 } | |
| 2600 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2601 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2602 return ptypes(mt)->obj_at(idx); |
| 2603 } | |
| 2604 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2605 int java_lang_invoke_MethodType::ptype_count(oop mt) { |
|
1133
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2606 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2607 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2608 |
| 710 | 2609 |
| 2610 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2611 // Support for java_lang_invoke_MethodTypeForm |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2612 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2613 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2614 int java_lang_invoke_MethodTypeForm::_vmlayout_offset; |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2615 int java_lang_invoke_MethodTypeForm::_erasedType_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2616 int java_lang_invoke_MethodTypeForm::_genericInvoker_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2617 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2618 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2619 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2620 if (k != NULL) { | |
| 2621 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2622 compute_optional_offset(_vmlayout_offset, k, vmSymbols::vmlayout_name(), vmSymbols::object_signature()); |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2623 compute_optional_offset(_erasedType_offset, k, vmSymbols::erasedType_name(), vmSymbols::java_lang_invoke_MethodType_signature(), true); |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2624 compute_optional_offset(_genericInvoker_offset, k, vmSymbols::genericInvoker_name(), vmSymbols::java_lang_invoke_MethodHandle_signature(), true); |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2625 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 710 | 2626 } |
| 2627 } | |
| 2628 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2629 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2630 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2631 assert(_vmslots_offset > 0, ""); |
| 710 | 2632 return mtform->int_field(_vmslots_offset); |
| 2633 } | |
| 2634 | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2635 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2636 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2637 assert(_vmlayout_offset > 0, ""); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2638 return mtform->obj_field(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2639 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2640 |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2641 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2642 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2643 oop previous = vmlayout(mtform); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2644 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2645 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2646 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2647 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2648 OrderAccess::storestore(); // make sure our copy is fully committed |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2649 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2650 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2651 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2652 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2653 return cookie; |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2654 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2655 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2656 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2657 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2658 return mtform->obj_field(_erasedType_offset); | |
| 2659 } | |
| 2660 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2661 oop java_lang_invoke_MethodTypeForm::genericInvoker(oop mtform) { |
|
1793
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2662 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2663 return mtform->obj_field(_genericInvoker_offset); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2664 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2665 |
| 710 | 2666 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2667 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2668 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2669 int java_lang_invoke_CallSite::_target_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2670 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2671 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2672 if (!EnableInvokeDynamic) return; |
|
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2673 klassOop k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2674 if (k != NULL) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2675 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
|
2676 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2677 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2678 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2679 oop java_lang_invoke_CallSite::target(oop site) { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2680 return site->obj_field(_target_offset); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2681 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2682 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2683 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
|
2684 site->obj_field_put(_target_offset, target); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2685 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2686 |
| 710 | 2687 |
| 0 | 2688 // Support for java_security_AccessControlContext |
| 2689 | |
| 2690 int java_security_AccessControlContext::_context_offset = 0; | |
| 2691 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2692 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2693 | |
| 2694 void java_security_AccessControlContext::compute_offsets() { | |
| 2695 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2696 fieldDescriptor fd; | |
| 2697 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2698 | |
| 2699 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2700 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2701 } | |
| 2702 _context_offset = fd.offset(); | |
| 2703 | |
| 2704 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2705 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2706 } | |
| 2707 _privilegedContext_offset = fd.offset(); | |
| 2708 | |
| 2709 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2710 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2711 } | |
| 2712 _isPrivileged_offset = fd.offset(); | |
| 2713 } | |
| 2714 | |
| 2715 | |
| 2716 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2717 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2718 // Ensure klass is initialized | |
| 2719 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2720 // Allocate result | |
| 2721 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2722 // Fill in values | |
| 2723 result->obj_field_put(_context_offset, context()); | |
| 2724 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2725 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2726 return result; | |
| 2727 } | |
| 2728 | |
| 2729 | |
| 2730 // Support for java_lang_ClassLoader | |
| 2731 | |
| 2732 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2733 assert(loader->is_oop(), "loader must be oop"); | |
| 2734 return loader->obj_field(parent_offset); | |
| 2735 } | |
| 2736 | |
| 2737 | |
| 2738 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2739 // Fix for 4474172; see evaluation for more details | |
| 2740 loader = non_reflection_class_loader(loader); | |
| 2741 | |
| 2742 oop cl = SystemDictionary::java_system_loader(); | |
| 2743 while(cl != NULL) { | |
| 2744 if (cl == loader) return true; | |
| 2745 cl = parent(cl); | |
| 2746 } | |
| 2747 return false; | |
| 2748 } | |
| 2749 | |
| 2750 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2751 if (loader != NULL) { | |
| 2752 // See whether this is one of the class loaders associated with | |
| 2753 // the generated bytecodes for reflection, and if so, "magically" | |
| 2754 // delegate to its parent to prevent class loading from occurring | |
| 2755 // in places where applications using reflection didn't expect it. | |
| 1142 | 2756 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2757 // This might be null in non-1.4 JDKs |
| 2758 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2759 return parent(loader); | |
| 2760 } | |
| 2761 } | |
| 2762 return loader; | |
| 2763 } | |
| 2764 | |
| 2765 | |
| 2766 // Support for java_lang_System | |
| 2767 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
|
2768 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2769 } |
| 2770 | |
| 2771 | |
| 2772 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
|
2773 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2774 } |
| 2775 | |
| 2776 | |
| 2777 int java_lang_System::err_offset_in_bytes() { | |
|
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2778 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2779 } |
| 2780 | |
| 2781 | |
| 2782 | |
| 2783 int java_lang_String::value_offset; | |
| 2784 int java_lang_String::offset_offset; | |
| 2785 int java_lang_String::count_offset; | |
| 2786 int java_lang_String::hash_offset; | |
| 2787 int java_lang_Class::klass_offset; | |
| 2788 int java_lang_Class::array_klass_offset; | |
| 2789 int java_lang_Class::resolved_constructor_offset; | |
| 2790 int java_lang_Class::number_of_fake_oop_fields; | |
|
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2791 int java_lang_Class::oop_size_offset; |
|
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|
2792 int java_lang_Class::static_oop_field_count_offset; |
| 0 | 2793 int java_lang_Throwable::backtrace_offset; |
| 2794 int java_lang_Throwable::detailMessage_offset; | |
| 2795 int java_lang_Throwable::cause_offset; | |
| 2796 int java_lang_Throwable::stackTrace_offset; | |
|
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2797 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2798 int java_lang_reflect_AccessibleObject::override_offset; |
| 2799 int java_lang_reflect_Method::clazz_offset; | |
| 2800 int java_lang_reflect_Method::name_offset; | |
| 2801 int java_lang_reflect_Method::returnType_offset; | |
| 2802 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2803 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2804 int java_lang_reflect_Method::slot_offset; | |
| 2805 int java_lang_reflect_Method::modifiers_offset; | |
| 2806 int java_lang_reflect_Method::signature_offset; | |
| 2807 int java_lang_reflect_Method::annotations_offset; | |
| 2808 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2809 int java_lang_reflect_Method::annotation_default_offset; | |
| 2810 int java_lang_reflect_Constructor::clazz_offset; | |
| 2811 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2812 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2813 int java_lang_reflect_Constructor::slot_offset; | |
| 2814 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2815 int java_lang_reflect_Constructor::signature_offset; | |
| 2816 int java_lang_reflect_Constructor::annotations_offset; | |
| 2817 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2818 int java_lang_reflect_Field::clazz_offset; | |
| 2819 int java_lang_reflect_Field::name_offset; | |
| 2820 int java_lang_reflect_Field::type_offset; | |
| 2821 int java_lang_reflect_Field::slot_offset; | |
| 2822 int java_lang_reflect_Field::modifiers_offset; | |
| 2823 int java_lang_reflect_Field::signature_offset; | |
| 2824 int java_lang_reflect_Field::annotations_offset; | |
| 2825 int java_lang_boxing_object::value_offset; | |
|
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2826 int java_lang_boxing_object::long_value_offset; |
| 0 | 2827 int java_lang_ref_Reference::referent_offset; |
| 2828 int java_lang_ref_Reference::queue_offset; | |
| 2829 int java_lang_ref_Reference::next_offset; | |
| 2830 int java_lang_ref_Reference::discovered_offset; | |
| 2831 int java_lang_ref_Reference::static_lock_offset; | |
| 2832 int java_lang_ref_Reference::static_pending_offset; | |
| 2833 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2834 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2835 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2836 int java_lang_ClassLoader::parent_offset; | |
| 2837 int java_lang_System::static_in_offset; | |
| 2838 int java_lang_System::static_out_offset; | |
| 2839 int java_lang_System::static_err_offset; | |
| 2840 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2841 int java_lang_StackTraceElement::methodName_offset; | |
| 2842 int java_lang_StackTraceElement::fileName_offset; | |
| 2843 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2844 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2845 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2846 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2847 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2848 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2849 int java_nio_Buffer::_limit_offset; | |
| 2850 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2851 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2852 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2853 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2854 | |
| 2855 | |
| 2856 // Support for java_lang_StackTraceElement | |
| 2857 | |
| 2858 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2859 element->obj_field_put(fileName_offset, value); | |
| 2860 } | |
| 2861 | |
| 2862 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2863 element->obj_field_put(declaringClass_offset, value); | |
| 2864 } | |
| 2865 | |
| 2866 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2867 element->obj_field_put(methodName_offset, value); | |
| 2868 } | |
| 2869 | |
| 2870 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2871 element->int_field_put(lineNumber_offset, value); | |
| 2872 } | |
| 2873 | |
| 2874 | |
| 2875 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2876 | |
| 2877 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2878 o->obj_field_put(classes_offset, val); | |
| 2879 } | |
| 2880 | |
| 2881 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2882 o->obj_field_put(classEnabled_offset, val); | |
| 2883 } | |
| 2884 | |
| 2885 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2886 o->obj_field_put(packages_offset, val); | |
| 2887 } | |
| 2888 | |
| 2889 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2890 o->obj_field_put(packageEnabled_offset, val); | |
| 2891 } | |
| 2892 | |
| 2893 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2894 o->bool_field_put(deflt_offset, val); | |
| 2895 } | |
| 2896 | |
| 2897 | |
| 2898 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2899 int java_nio_Buffer::limit_offset() { | |
| 2900 return _limit_offset; | |
| 2901 } | |
| 2902 | |
| 2903 | |
| 2904 void java_nio_Buffer::compute_offsets() { | |
| 2905 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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2906 assert(k != NULL, "must be loaded in 1.4+"); |
|
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|
2907 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2908 } |
| 2909 | |
| 2910 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2911 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2912 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2913 return _value_offset; | |
| 2914 } | |
| 2915 | |
| 2916 | |
| 2917 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2918 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2919 // If this class is not present, its value field offset won't be referenced. | |
| 2920 if (k != NULL) { | |
|
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|
2921 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2922 } |
| 2923 } | |
| 2924 | |
| 2925 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2926 if (_owner_offset != 0) return; | |
| 2927 | |
| 2928 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2929 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2930 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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|
2931 compute_offset(_owner_offset, k, |
| 0 | 2932 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2933 } | |
| 2934 | |
| 2935 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2936 assert(_owner_offset != 0, "Must be initialized"); | |
| 2937 return obj->obj_field(_owner_offset); | |
| 2938 } | |
| 2939 | |
| 2940 // Compute hard-coded offsets | |
| 2941 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2942 // are not available to determine the offset_of_static_fields. | |
| 2943 void JavaClasses::compute_hard_coded_offsets() { | |
|
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diff
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|
2944 const int x = heapOopSize; |
|
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2945 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2946 |
| 2947 // Do the String Class | |
| 2948 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2949 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2950 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2951 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2952 | |
|
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2953 { |
|
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|
2954 // Do the Class Class |
|
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2955 int offset = header; |
|
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2956 java_lang_Class::oop_size_offset = header; |
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2957 offset += BytesPerInt; |
|
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2958 java_lang_Class::static_oop_field_count_offset = offset; |
|
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|
2959 offset = align_size_up(offset + BytesPerInt, x); |
|
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|
2960 java_lang_Class::klass_offset = offset; |
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2961 offset += x; |
|
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|
2962 java_lang_Class::array_klass_offset = offset; |
|
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2963 offset += x; |
|
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|
2964 java_lang_Class::resolved_constructor_offset = offset; |
|
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|
2965 } |
| 0 | 2966 |
| 2967 // This is NOT an offset | |
| 2968 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2969 | |
| 2970 // Throwable Class | |
| 2971 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2972 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2973 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2974 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
|
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2975 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 2976 |
| 2977 // java_lang_boxing_object | |
|
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2978 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
|
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2979 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2980 |
| 2981 // java_lang_ref_Reference: | |
| 2982 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2983 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2984 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2985 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2986 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2987 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 2988 // Artificial fields for java_lang_ref_Reference | |
| 2989 // The first field is for the discovered field added in 1.4 | |
| 2990 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 2991 | |
| 2992 // java_lang_ref_SoftReference Class | |
|
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2993 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 2994 // Don't multiply static fields because they are always in wordSize units |
| 2995 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 2996 | |
| 2997 // java_lang_ClassLoader | |
| 2998 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 2999 | |
| 3000 // java_lang_System | |
| 3001 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 3002 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 3003 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 3004 | |
| 3005 // java_lang_StackTraceElement | |
| 3006 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 3007 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 3008 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 3009 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 3010 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 3011 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 3012 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 3013 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 3014 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 3015 | |
| 3016 } | |
| 3017 | |
| 3018 | |
| 3019 // Compute non-hard-coded field offsets of all the classes in this file | |
| 3020 void JavaClasses::compute_offsets() { | |
| 3021 | |
| 3022 java_lang_Class::compute_offsets(); | |
| 3023 java_lang_Thread::compute_offsets(); | |
| 3024 java_lang_ThreadGroup::compute_offsets(); | |
|
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|
3025 if (EnableInvokeDynamic) { |
|
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|
3026 java_lang_invoke_MethodHandle::compute_offsets(); |
|
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|
3027 java_lang_invoke_MemberName::compute_offsets(); |
|
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|
3028 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
|
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|
3029 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
|
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|
3030 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
|
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|
3031 java_lang_invoke_MethodType::compute_offsets(); |
|
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|
3032 java_lang_invoke_MethodTypeForm::compute_offsets(); |
|
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|
3033 java_lang_invoke_CallSite::compute_offsets(); |
|
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|
3034 } |
| 0 | 3035 java_security_AccessControlContext::compute_offsets(); |
| 3036 // Initialize reflection classes. The layouts of these classes | |
| 3037 // changed with the new reflection implementation in JDK 1.4, and | |
| 3038 // since the Universe doesn't know what JDK version it is until this | |
| 3039 // point we defer computation of these offsets until now. | |
| 3040 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3041 java_lang_reflect_Method::compute_offsets(); | |
| 3042 java_lang_reflect_Constructor::compute_offsets(); | |
| 3043 java_lang_reflect_Field::compute_offsets(); | |
| 3044 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3045 java_nio_Buffer::compute_offsets(); | |
| 3046 } | |
| 3047 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3048 sun_reflect_ConstantPool::compute_offsets(); | |
| 3049 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3050 } | |
| 3051 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3052 |
| 3053 // generated interpreter code wants to know about the offsets we just computed: | |
| 3054 AbstractAssembler::update_delayed_values(); | |
| 0 | 3055 } |
| 3056 | |
| 3057 #ifndef PRODUCT | |
| 3058 | |
| 3059 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3060 // against changes in the class files | |
| 3061 | |
| 3062 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3063 EXCEPTION_MARK; | |
| 3064 fieldDescriptor fd; | |
|
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coleenp
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diff
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|
3065 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3066 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3067 instanceKlassHandle h_klass (THREAD, k); | |
|
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|
3068 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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|
3069 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
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diff
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|
3070 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3071 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3072 return false; | |
| 3073 } | |
| 3074 if (fd.is_static()) { | |
| 3075 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3076 return false; | |
| 3077 } | |
| 3078 if (fd.offset() == hardcoded_offset ) { | |
| 3079 return true; | |
| 3080 } else { | |
| 3081 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3082 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3083 return false; | |
| 3084 } | |
| 3085 } | |
| 3086 | |
| 3087 | |
| 3088 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3089 EXCEPTION_MARK; | |
| 3090 fieldDescriptor fd; | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
3091 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3092 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3093 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
3582bf76420e
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diff
changeset
|
3094 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
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coleenp
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1989
diff
changeset
|
3095 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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coleenp
parents:
1989
diff
changeset
|
3096 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3097 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3098 return false; | |
| 3099 } | |
| 3100 if (!fd.is_static()) { | |
| 3101 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3102 return false; | |
| 3103 } | |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
3104 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3105 return true; |
| 3106 } else { | |
|
2376
c7f3d0b4570f
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parents:
2357
diff
changeset
|
3107 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 | 3108 return false; |
| 3109 } | |
| 3110 } | |
| 3111 | |
| 3112 | |
|
132
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jrose
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|
3113 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
60b728ec77c1
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jrose
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diff
changeset
|
3114 EXCEPTION_MARK; |
|
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diff
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|
3115 fieldDescriptor fd; |
|
2177
3582bf76420e
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1989
diff
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|
3116 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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|
3117 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
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jrose
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|
3118 instanceKlassHandle h_klass (THREAD, k); |
|
2177
3582bf76420e
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coleenp
parents:
1989
diff
changeset
|
3119 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
|
3120 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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parents:
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diff
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|
3121 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
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diff
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|
3122 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
60b728ec77c1
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jrose
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|
3123 return false; |
|
60b728ec77c1
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jrose
parents:
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diff
changeset
|
3124 } |
|
60b728ec77c1
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jrose
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diff
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|
3125 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
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|
3126 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
60b728ec77c1
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jrose
parents:
113
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|
3127 return false; |
|
60b728ec77c1
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jrose
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diff
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|
3128 } |
|
60b728ec77c1
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jrose
parents:
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diff
changeset
|
3129 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
3130 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
60b728ec77c1
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jrose
parents:
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diff
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|
3131 return false; |
|
60b728ec77c1
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jrose
parents:
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diff
changeset
|
3132 } |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
3133 jint field_value = fd.int_initial_value(); |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
3134 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
3135 return true; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3136 } else { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3137 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
|
3138 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3139 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3140 } |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
3141 |
|
60b728ec77c1
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jrose
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|
3142 |
| 0 | 3143 // Check the hard-coded field offsets of all the classes in this file |
| 3144 | |
| 3145 void JavaClasses::check_offsets() { | |
| 3146 bool valid = true; | |
| 3147 | |
| 3148 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3149 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3150 | |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3151 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
437d03ea40b1
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kvn
parents:
132
diff
changeset
|
3152 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
437d03ea40b1
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kvn
parents:
132
diff
changeset
|
3153 |
| 0 | 3154 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3155 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3156 | |
|
132
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
3157 #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
|
3158 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
60b728ec77c1
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jrose
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113
diff
changeset
|
3159 |
| 0 | 3160 // java.lang.String |
| 3161 | |
| 3162 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3163 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3164 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3165 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3166 | |
| 3167 // java.lang.Class | |
| 3168 | |
| 3169 // Fake fields | |
| 3170 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3171 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3172 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3173 | |
| 3174 // java.lang.Throwable | |
| 3175 | |
| 3176 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3177 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3178 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3179 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3180 | |
| 3181 // Boxed primitive objects (java_lang_boxing_object) | |
| 3182 | |
| 3183 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3184 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3185 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
165
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kvn
parents:
132
diff
changeset
|
3186 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3187 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3188 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3189 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
165
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kvn
parents:
132
diff
changeset
|
3190 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3191 |
| 3192 // java.lang.ClassLoader | |
| 3193 | |
| 3194 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3195 | |
| 3196 // java.lang.System | |
| 3197 | |
| 3198 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3199 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3200 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3201 | |
| 3202 // java.lang.StackTraceElement | |
| 3203 | |
| 3204 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3205 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3206 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3207 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3208 | |
| 3209 // java.lang.ref.Reference | |
| 3210 | |
| 3211 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3212 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3213 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3214 // Fake field | |
| 3215 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3216 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3217 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3218 | |
| 3219 // java.lang.ref.SoftReference | |
| 3220 | |
| 3221 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3222 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3223 | |
| 3224 // java.lang.AssertionStatusDirectives | |
| 3225 // | |
| 3226 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3227 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3228 // into merlin "for some time." Without it, the vm will fail with early | |
| 3229 // merlin builds. | |
| 3230 | |
| 3231 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3232 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3233 const char* sig = "[Ljava/lang/String;"; | |
| 3234 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3235 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3236 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3237 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3238 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3239 } | |
| 3240 | |
| 3241 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3242 } | |
| 3243 | |
| 3244 #endif // PRODUCT | |
| 3245 | |
| 3246 void javaClasses_init() { | |
| 3247 JavaClasses::compute_offsets(); | |
| 3248 JavaClasses::check_offsets(); | |
| 3249 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3250 } |