Mercurial > hg > truffle
annotate src/share/vm/classfile/javaClasses.cpp @ 3900:a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
Reviewed-by: never
| author | twisti |
|---|---|
| date | Thu, 01 Sep 2011 01:31:25 -0700 |
| parents | 0b80db433fcb |
| children | c26de9aef2ed |
| 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" | |
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31 #include "compiler/compilerOracle.hpp" |
| 1972 | 32 #include "interpreter/interpreter.hpp" |
| 33 #include "memory/oopFactory.hpp" | |
| 34 #include "memory/resourceArea.hpp" | |
| 35 #include "memory/universe.inline.hpp" | |
| 36 #include "oops/instanceKlass.hpp" | |
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37 #include "oops/instanceMirrorKlass.hpp" |
| 1972 | 38 #include "oops/klass.hpp" |
| 39 #include "oops/klassOop.hpp" | |
| 40 #include "oops/methodOop.hpp" | |
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41 #include "oops/symbol.hpp" |
| 1972 | 42 #include "oops/typeArrayOop.hpp" |
| 43 #include "runtime/fieldDescriptor.hpp" | |
| 44 #include "runtime/handles.inline.hpp" | |
| 45 #include "runtime/interfaceSupport.hpp" | |
| 46 #include "runtime/java.hpp" | |
| 47 #include "runtime/javaCalls.hpp" | |
| 48 #include "runtime/safepoint.hpp" | |
| 49 #include "runtime/vframe.hpp" | |
| 50 #include "utilities/preserveException.hpp" | |
| 51 #ifdef TARGET_OS_FAMILY_linux | |
| 52 # include "thread_linux.inline.hpp" | |
| 53 #endif | |
| 54 #ifdef TARGET_OS_FAMILY_solaris | |
| 55 # include "thread_solaris.inline.hpp" | |
| 56 #endif | |
| 57 #ifdef TARGET_OS_FAMILY_windows | |
| 58 # include "thread_windows.inline.hpp" | |
| 59 #endif | |
| 0 | 60 |
| 710 | 61 static bool find_field(instanceKlass* ik, |
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62 Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 63 fieldDescriptor* fd, |
| 64 bool allow_super = false) { | |
| 65 if (allow_super) | |
| 66 return ik->find_field(name_symbol, signature_symbol, fd) != NULL; | |
| 67 else | |
| 68 return ik->find_local_field(name_symbol, signature_symbol, fd); | |
| 69 } | |
| 70 | |
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71 // Helpful routine for computing field offsets at run time rather than hardcoding them |
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72 static void |
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73 compute_offset(int &dest_offset, |
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74 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 75 bool allow_super = false) { |
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76 fieldDescriptor fd; |
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77 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 78 if (!find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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79 ResourceMark rm; |
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80 tty->print_cr("Invalid layout of %s at %s", ik->external_name(), name_symbol->as_C_string()); |
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81 fatal("Invalid layout of preloaded class"); |
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82 } |
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83 dest_offset = fd.offset(); |
| 0 | 84 } |
| 85 | |
| 86 // Same as above but for "optional" offsets that might not be present in certain JDK versions | |
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87 static void |
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88 compute_optional_offset(int& dest_offset, |
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89 klassOop klass_oop, Symbol* name_symbol, Symbol* signature_symbol, |
| 710 | 90 bool allow_super = false) { |
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91 fieldDescriptor fd; |
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92 instanceKlass* ik = instanceKlass::cast(klass_oop); |
| 710 | 93 if (find_field(ik, name_symbol, signature_symbol, &fd, allow_super)) { |
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94 dest_offset = fd.offset(); |
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95 } |
| 0 | 96 } |
| 97 | |
| 710 | 98 |
| 0 | 99 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) { |
| 100 // Create the String object first, so there's a chance that the String | |
| 101 // and the char array it points to end up in the same cache line. | |
| 102 oop obj; | |
| 103 if (tenured) { | |
| 1142 | 104 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_permanent_instance(CHECK_NH); |
| 0 | 105 } else { |
| 1142 | 106 obj = instanceKlass::cast(SystemDictionary::String_klass())->allocate_instance(CHECK_NH); |
| 0 | 107 } |
| 108 | |
| 109 // Create the char array. The String object must be handlized here | |
| 110 // because GC can happen as a result of the allocation attempt. | |
| 111 Handle h_obj(THREAD, obj); | |
| 112 typeArrayOop buffer; | |
| 113 if (tenured) { | |
| 114 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH); | |
| 115 } else { | |
| 116 buffer = oopFactory::new_charArray(length, CHECK_NH); | |
| 117 } | |
| 118 | |
| 119 // Point the String at the char array | |
| 120 obj = h_obj(); | |
| 121 set_value(obj, buffer); | |
| 122 // No need to zero the offset, allocation zero'ed the entire String object | |
| 123 assert(offset(obj) == 0, "initial String offset should be zero"); | |
| 124 //set_offset(obj, 0); | |
| 125 set_count(obj, length); | |
| 126 | |
| 127 return h_obj; | |
| 128 } | |
| 129 | |
| 130 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) { | |
| 131 Handle h_obj = basic_create(length, tenured, CHECK_NH); | |
| 132 typeArrayOop buffer = value(h_obj()); | |
| 133 for (int index = 0; index < length; index++) { | |
| 134 buffer->char_at_put(index, unicode[index]); | |
| 135 } | |
| 136 return h_obj; | |
| 137 } | |
| 138 | |
| 139 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 140 return basic_create_from_unicode(unicode, length, false, CHECK_NH); | |
| 141 } | |
| 142 | |
| 143 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) { | |
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144 return basic_create_from_unicode(unicode, length, JavaObjectsInPerm, CHECK_NH); |
| 0 | 145 } |
| 146 | |
| 147 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) { | |
| 148 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0); | |
| 149 return h_obj(); | |
| 150 } | |
| 151 | |
| 152 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) { | |
| 153 if (utf8_str == NULL) { | |
| 154 return Handle(); | |
| 155 } | |
| 156 int length = UTF8::unicode_length(utf8_str); | |
| 157 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 158 if (length > 0) { | |
| 159 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length); | |
| 160 } | |
| 161 return h_obj; | |
| 162 } | |
| 163 | |
| 164 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) { | |
| 165 Handle h_obj = create_from_str(utf8_str, CHECK_0); | |
| 166 return h_obj(); | |
| 167 } | |
| 168 | |
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169 Handle java_lang_String::create_from_symbol(Symbol* symbol, TRAPS) { |
| 0 | 170 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length()); |
| 171 Handle h_obj = basic_create(length, false, CHECK_NH); | |
| 172 if (length > 0) { | |
| 173 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length); | |
| 174 } | |
| 175 return h_obj; | |
| 176 } | |
| 177 | |
| 178 // Converts a C string to a Java String based on current encoding | |
| 179 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) { | |
| 180 assert(str != NULL, "bad arguments"); | |
| 181 | |
| 182 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *); | |
| 183 static to_java_string_fn_t _to_java_string_fn = NULL; | |
| 184 | |
| 185 if (_to_java_string_fn == NULL) { | |
| 186 void *lib_handle = os::native_java_library(); | |
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187 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, os::dll_lookup(lib_handle, "NewStringPlatform")); |
| 0 | 188 if (_to_java_string_fn == NULL) { |
| 189 fatal("NewStringPlatform missing"); | |
| 190 } | |
| 191 } | |
| 192 | |
| 193 jstring js = NULL; | |
| 194 { JavaThread* thread = (JavaThread*)THREAD; | |
| 195 assert(thread->is_Java_thread(), "must be java thread"); | |
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196 HandleMark hm(thread); |
| 0 | 197 ThreadToNativeFromVM ttn(thread); |
| 198 js = (_to_java_string_fn)(thread->jni_environment(), str); | |
| 199 } | |
| 200 return Handle(THREAD, JNIHandles::resolve(js)); | |
| 201 } | |
| 202 | |
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203 // Converts a Java String to a native C string that can be used for |
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204 // native OS calls. |
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205 char* java_lang_String::as_platform_dependent_str(Handle java_string, TRAPS) { |
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206 |
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207 typedef char* (*to_platform_string_fn_t)(JNIEnv*, jstring, bool*); |
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208 static to_platform_string_fn_t _to_platform_string_fn = NULL; |
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209 |
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210 if (_to_platform_string_fn == NULL) { |
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211 void *lib_handle = os::native_java_library(); |
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212 _to_platform_string_fn = CAST_TO_FN_PTR(to_platform_string_fn_t, os::dll_lookup(lib_handle, "GetStringPlatformChars")); |
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213 if (_to_platform_string_fn == NULL) { |
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214 fatal("GetStringPlatformChars missing"); |
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215 } |
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216 } |
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217 |
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218 char *native_platform_string; |
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219 { JavaThread* thread = (JavaThread*)THREAD; |
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220 assert(thread->is_Java_thread(), "must be java thread"); |
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221 JNIEnv *env = thread->jni_environment(); |
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222 jstring js = (jstring) JNIHandles::make_local(env, java_string()); |
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223 bool is_copy; |
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224 HandleMark hm(thread); |
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225 ThreadToNativeFromVM ttn(thread); |
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226 native_platform_string = (_to_platform_string_fn)(env, js, &is_copy); |
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227 assert(is_copy == JNI_TRUE, "is_copy value changed"); |
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228 JNIHandles::destroy_local(js); |
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229 } |
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230 return native_platform_string; |
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231 } |
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232 |
| 0 | 233 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) { |
| 234 oop obj = java_string(); | |
| 235 // Typical usage is to convert all '/' to '.' in string. | |
| 236 typeArrayOop value = java_lang_String::value(obj); | |
| 237 int offset = java_lang_String::offset(obj); | |
| 238 int length = java_lang_String::length(obj); | |
| 239 | |
| 240 // First check if any from_char exist | |
| 241 int index; // Declared outside, used later | |
| 242 for (index = 0; index < length; index++) { | |
| 243 if (value->char_at(index + offset) == from_char) { | |
| 244 break; | |
| 245 } | |
| 246 } | |
| 247 if (index == length) { | |
| 248 // No from_char, so do not copy. | |
| 249 return java_string; | |
| 250 } | |
| 251 | |
| 252 // Create new UNICODE buffer. Must handlize value because GC | |
| 253 // may happen during String and char array creation. | |
| 254 typeArrayHandle h_value(THREAD, value); | |
| 255 Handle string = basic_create(length, false, CHECK_NH); | |
| 256 | |
| 257 typeArrayOop from_buffer = h_value(); | |
| 258 typeArrayOop to_buffer = java_lang_String::value(string()); | |
| 259 | |
| 260 // Copy contents | |
| 261 for (index = 0; index < length; index++) { | |
| 262 jchar c = from_buffer->char_at(index + offset); | |
| 263 if (c == from_char) { | |
| 264 c = to_char; | |
| 265 } | |
| 266 to_buffer->char_at_put(index, c); | |
| 267 } | |
| 268 return string; | |
| 269 } | |
| 270 | |
| 271 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) { | |
| 272 typeArrayOop value = java_lang_String::value(java_string); | |
| 273 int offset = java_lang_String::offset(java_string); | |
| 274 length = java_lang_String::length(java_string); | |
| 275 | |
| 276 jchar* result = NEW_RESOURCE_ARRAY(jchar, length); | |
| 277 for (int index = 0; index < length; index++) { | |
| 278 result[index] = value->char_at(index + offset); | |
| 279 } | |
| 280 return result; | |
| 281 } | |
| 282 | |
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283 unsigned int java_lang_String::hash_string(oop java_string) { |
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284 typeArrayOop value = java_lang_String::value(java_string); |
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285 int offset = java_lang_String::offset(java_string); |
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286 int length = java_lang_String::length(java_string); |
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287 |
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288 if (length == 0) return 0; |
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289 return hash_string(value->char_at_addr(offset), length); |
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290 } |
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291 |
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292 Symbol* java_lang_String::as_symbol(Handle java_string, TRAPS) { |
| 0 | 293 oop obj = java_string(); |
| 294 typeArrayOop value = java_lang_String::value(obj); | |
| 295 int offset = java_lang_String::offset(obj); | |
| 296 int length = java_lang_String::length(obj); | |
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297 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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298 Symbol* sym = SymbolTable::lookup_unicode(base, length, THREAD); |
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299 return sym; |
| 0 | 300 } |
| 301 | |
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302 Symbol* java_lang_String::as_symbol_or_null(oop java_string) { |
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303 typeArrayOop value = java_lang_String::value(java_string); |
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304 int offset = java_lang_String::offset(java_string); |
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305 int length = java_lang_String::length(java_string); |
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306 jchar* base = (length == 0) ? NULL : value->char_at_addr(offset); |
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307 return SymbolTable::probe_unicode(base, length); |
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308 } |
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309 |
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310 |
| 0 | 311 int java_lang_String::utf8_length(oop java_string) { |
| 312 typeArrayOop value = java_lang_String::value(java_string); | |
| 313 int offset = java_lang_String::offset(java_string); | |
| 314 int length = java_lang_String::length(java_string); | |
| 315 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 316 return UNICODE::utf8_length(position, length); | |
| 317 } | |
| 318 | |
| 319 char* java_lang_String::as_utf8_string(oop java_string) { | |
| 320 typeArrayOop value = java_lang_String::value(java_string); | |
| 321 int offset = java_lang_String::offset(java_string); | |
| 322 int length = java_lang_String::length(java_string); | |
| 323 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); | |
| 324 return UNICODE::as_utf8(position, length); | |
| 325 } | |
| 326 | |
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327 char* java_lang_String::as_utf8_string(oop java_string, char* buf, int buflen) { |
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328 typeArrayOop value = java_lang_String::value(java_string); |
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329 int offset = java_lang_String::offset(java_string); |
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330 int length = java_lang_String::length(java_string); |
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331 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset); |
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332 return UNICODE::as_utf8(position, length, buf, buflen); |
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333 } |
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334 |
| 0 | 335 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) { |
| 336 typeArrayOop value = java_lang_String::value(java_string); | |
| 337 int offset = java_lang_String::offset(java_string); | |
| 338 int length = java_lang_String::length(java_string); | |
| 339 assert(start + len <= length, "just checking"); | |
| 340 jchar* position = value->char_at_addr(offset + start); | |
| 341 return UNICODE::as_utf8(position, len); | |
| 342 } | |
| 343 | |
| 344 bool java_lang_String::equals(oop java_string, jchar* chars, int len) { | |
| 345 assert(SharedSkipVerify || | |
| 1142 | 346 java_string->klass() == SystemDictionary::String_klass(), |
| 0 | 347 "must be java_string"); |
| 348 typeArrayOop value = java_lang_String::value(java_string); | |
| 349 int offset = java_lang_String::offset(java_string); | |
| 350 int length = java_lang_String::length(java_string); | |
| 351 if (length != len) { | |
| 352 return false; | |
| 353 } | |
| 354 for (int i = 0; i < len; i++) { | |
| 355 if (value->char_at(i + offset) != chars[i]) { | |
| 356 return false; | |
| 357 } | |
| 358 } | |
| 359 return true; | |
| 360 } | |
| 361 | |
| 362 void java_lang_String::print(Handle java_string, outputStream* st) { | |
| 363 oop obj = java_string(); | |
| 1142 | 364 assert(obj->klass() == SystemDictionary::String_klass(), "must be java_string"); |
| 0 | 365 typeArrayOop value = java_lang_String::value(obj); |
| 366 int offset = java_lang_String::offset(obj); | |
| 367 int length = java_lang_String::length(obj); | |
| 368 | |
| 369 int end = MIN2(length, 100); | |
| 370 if (value == NULL) { | |
| 371 // This can happen if, e.g., printing a String | |
| 372 // object before its initializer has been called | |
| 373 st->print_cr("NULL"); | |
| 374 } else { | |
| 375 st->print("\""); | |
| 376 for (int index = 0; index < length; index++) { | |
| 377 st->print("%c", value->char_at(index + offset)); | |
| 378 } | |
| 379 st->print("\""); | |
| 380 } | |
| 381 } | |
| 382 | |
|
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383 static void initialize_static_field(fieldDescriptor* fd, TRAPS) { |
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384 Handle mirror (THREAD, fd->field_holder()->java_mirror()); |
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385 assert(mirror.not_null() && fd->is_static(), "just checking"); |
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386 if (fd->has_initial_value()) { |
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387 BasicType t = fd->field_type(); |
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388 switch (t) { |
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389 case T_BYTE: |
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390 mirror()->byte_field_put(fd->offset(), fd->int_initial_value()); |
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391 break; |
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392 case T_BOOLEAN: |
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393 mirror()->bool_field_put(fd->offset(), fd->int_initial_value()); |
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394 break; |
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395 case T_CHAR: |
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396 mirror()->char_field_put(fd->offset(), fd->int_initial_value()); |
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397 break; |
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398 case T_SHORT: |
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399 mirror()->short_field_put(fd->offset(), fd->int_initial_value()); |
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400 break; |
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401 case T_INT: |
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402 mirror()->int_field_put(fd->offset(), fd->int_initial_value()); |
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403 break; |
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404 case T_FLOAT: |
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405 mirror()->float_field_put(fd->offset(), fd->float_initial_value()); |
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406 break; |
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407 case T_DOUBLE: |
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408 mirror()->double_field_put(fd->offset(), fd->double_initial_value()); |
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409 break; |
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410 case T_LONG: |
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411 mirror()->long_field_put(fd->offset(), fd->long_initial_value()); |
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412 break; |
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413 case T_OBJECT: |
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414 { |
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415 #ifdef ASSERT |
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416 TempNewSymbol sym = SymbolTable::new_symbol("Ljava/lang/String;", CHECK); |
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417 assert(fd->signature() == sym, "just checking"); |
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418 #endif |
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419 oop string = fd->string_initial_value(CHECK); |
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420 mirror()->obj_field_put(fd->offset(), string); |
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421 } |
|
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422 break; |
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423 default: |
|
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424 THROW_MSG(vmSymbols::java_lang_ClassFormatError(), |
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425 "Illegal ConstantValue attribute in class file"); |
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426 } |
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427 } |
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428 } |
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429 |
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430 |
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431 // During bootstrap, java.lang.Class wasn't loaded so static field |
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432 // offsets were computed without the size added it. Go back and |
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433 // update all the static field offsets to included the size. |
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434 static void fixup_static_field(fieldDescriptor* fd, TRAPS) { |
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435 if (fd->is_static()) { |
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436 int real_offset = fd->offset() + instanceMirrorKlass::offset_of_static_fields(); |
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437 typeArrayOop fields = instanceKlass::cast(fd->field_holder())->fields(); |
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438 fields->short_at_put(fd->index() + instanceKlass::low_offset, extract_low_short_from_int(real_offset)); |
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439 fields->short_at_put(fd->index() + instanceKlass::high_offset, extract_high_short_from_int(real_offset)); |
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440 } |
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441 } |
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442 |
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443 void java_lang_Class::fixup_mirror(KlassHandle k, TRAPS) { |
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444 assert(instanceMirrorKlass::offset_of_static_fields() != 0, "must have been computed already"); |
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445 |
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446 if (k->oop_is_instance()) { |
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447 // Fixup the offsets |
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448 instanceKlass::cast(k())->do_local_static_fields(&fixup_static_field, CHECK); |
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449 } |
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450 create_mirror(k, CHECK); |
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451 } |
| 0 | 452 |
| 453 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) { | |
| 454 assert(k->java_mirror() == NULL, "should only assign mirror once"); | |
| 455 // Use this moment of initialization to cache modifier_flags also, | |
| 456 // to support Class.getModifiers(). Instance classes recalculate | |
| 457 // the cached flags after the class file is parsed, but before the | |
| 458 // class is put into the system dictionary. | |
| 459 int computed_modifiers = k->compute_modifier_flags(CHECK_0); | |
| 460 k->set_modifier_flags(computed_modifiers); | |
|
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461 if (SystemDictionary::Class_klass_loaded() && (k->oop_is_instance() || k->oop_is_javaArray())) { |
| 0 | 462 // Allocate mirror (java.lang.Class instance) |
|
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463 Handle mirror = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance(k, CHECK_0); |
| 0 | 464 // Setup indirections |
| 465 mirror->obj_field_put(klass_offset, k()); | |
| 466 k->set_java_mirror(mirror()); | |
|
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467 |
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468 instanceMirrorKlass* mk = instanceMirrorKlass::cast(mirror->klass()); |
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469 java_lang_Class::set_oop_size(mirror(), mk->instance_size(k)); |
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470 java_lang_Class::set_static_oop_field_count(mirror(), mk->compute_static_oop_field_count(mirror())); |
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471 |
| 0 | 472 // It might also have a component mirror. This mirror must already exist. |
| 473 if (k->oop_is_javaArray()) { | |
| 474 Handle comp_mirror; | |
| 475 if (k->oop_is_typeArray()) { | |
| 476 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type(); | |
| 477 comp_mirror = Universe::java_mirror(type); | |
| 478 assert(comp_mirror.not_null(), "must have primitive mirror"); | |
| 479 } else if (k->oop_is_objArray()) { | |
| 480 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass(); | |
| 481 if (element_klass != NULL | |
| 482 && (Klass::cast(element_klass)->oop_is_instance() || | |
| 483 Klass::cast(element_klass)->oop_is_javaArray())) { | |
| 484 comp_mirror = Klass::cast(element_klass)->java_mirror(); | |
| 485 assert(comp_mirror.not_null(), "must have element mirror"); | |
| 486 } | |
| 487 // else some object array internal to the VM, like systemObjArrayKlassObj | |
| 488 } | |
| 489 if (comp_mirror.not_null()) { | |
| 490 // Two-way link between the array klass and its component mirror: | |
| 491 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror()); | |
| 492 set_array_klass(comp_mirror(), k->as_klassOop()); | |
| 493 } | |
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494 } else if (k->oop_is_instance()) { |
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495 // Initialize static fields |
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496 instanceKlass::cast(k())->do_local_static_fields(&initialize_static_field, CHECK_NULL); |
| 0 | 497 } |
| 498 return mirror(); | |
| 499 } else { | |
| 500 return NULL; | |
| 501 } | |
| 502 } | |
| 503 | |
| 504 | |
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505 |
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506 int java_lang_Class::oop_size(oop java_class) { |
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507 assert(oop_size_offset != 0, "must be set"); |
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508 return java_class->int_field(oop_size_offset); |
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509 } |
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510 void java_lang_Class::set_oop_size(oop java_class, int size) { |
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511 assert(oop_size_offset != 0, "must be set"); |
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512 java_class->int_field_put(oop_size_offset, size); |
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513 } |
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514 int java_lang_Class::static_oop_field_count(oop java_class) { |
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515 assert(static_oop_field_count_offset != 0, "must be set"); |
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516 return java_class->int_field(static_oop_field_count_offset); |
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517 } |
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518 void java_lang_Class::set_static_oop_field_count(oop java_class, int size) { |
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519 assert(static_oop_field_count_offset != 0, "must be set"); |
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520 java_class->int_field_put(static_oop_field_count_offset, size); |
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521 } |
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522 |
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523 |
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524 |
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525 |
| 0 | 526 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) { |
| 527 // This should be improved by adding a field at the Java level or by | |
| 528 // introducing a new VM klass (see comment in ClassFileParser) | |
|
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529 oop java_class = instanceMirrorKlass::cast(SystemDictionary::Class_klass())->allocate_instance((oop)NULL, CHECK_0); |
| 0 | 530 if (type != T_VOID) { |
| 531 klassOop aklass = Universe::typeArrayKlassObj(type); | |
| 532 assert(aklass != NULL, "correct bootstrap"); | |
| 533 set_array_klass(java_class, aklass); | |
| 534 } | |
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535 instanceMirrorKlass* mk = instanceMirrorKlass::cast(SystemDictionary::Class_klass()); |
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536 java_lang_Class::set_oop_size(java_class, mk->instance_size(oop(NULL))); |
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537 java_lang_Class::set_static_oop_field_count(java_class, 0); |
| 0 | 538 return java_class; |
| 539 } | |
| 540 | |
| 541 | |
| 542 klassOop java_lang_Class::as_klassOop(oop java_class) { | |
| 543 //%note memory_2 | |
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544 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 545 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 546 assert(k == NULL || k->is_klass(), "type check"); | |
| 547 return k; | |
| 548 } | |
| 549 | |
| 550 | |
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551 void java_lang_Class::print_signature(oop java_class, outputStream* st) { |
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552 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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553 Symbol* name = NULL; |
|
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554 bool is_instance = false; |
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555 if (is_primitive(java_class)) { |
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556 name = vmSymbols::type_signature(primitive_type(java_class)); |
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557 } else { |
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558 klassOop k = as_klassOop(java_class); |
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559 is_instance = Klass::cast(k)->oop_is_instance(); |
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560 name = Klass::cast(k)->name(); |
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561 } |
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562 if (name == NULL) { |
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563 st->print("<null>"); |
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564 return; |
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565 } |
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566 if (is_instance) st->print("L"); |
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567 st->write((char*) name->base(), (int) name->utf8_length()); |
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568 if (is_instance) st->print(";"); |
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569 } |
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570 |
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571 Symbol* java_lang_Class::as_signature(oop java_class, bool intern_if_not_found, TRAPS) { |
|
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572 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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573 Symbol* name; |
|
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574 if (is_primitive(java_class)) { |
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575 name = vmSymbols::type_signature(primitive_type(java_class)); |
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576 // Because this can create a new symbol, the caller has to decrement |
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577 // the refcount, so make adjustment here and below for symbols returned |
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578 // that are not created or incremented due to a successful lookup. |
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579 name->increment_refcount(); |
|
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580 } else { |
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581 klassOop k = as_klassOop(java_class); |
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582 if (!Klass::cast(k)->oop_is_instance()) { |
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583 name = Klass::cast(k)->name(); |
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584 name->increment_refcount(); |
|
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585 } else { |
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586 ResourceMark rm; |
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587 const char* sigstr = Klass::cast(k)->signature_name(); |
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588 int siglen = (int) strlen(sigstr); |
|
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589 if (!intern_if_not_found) { |
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590 name = SymbolTable::probe(sigstr, siglen); |
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591 } else { |
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592 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
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593 } |
|
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594 } |
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595 } |
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596 return name; |
|
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597 } |
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598 |
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599 |
| 0 | 600 klassOop java_lang_Class::array_klass(oop java_class) { |
| 601 klassOop k = klassOop(java_class->obj_field(array_klass_offset)); | |
| 602 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass"); | |
| 603 return k; | |
| 604 } | |
| 605 | |
| 606 | |
| 607 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) { | |
| 608 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass"); | |
| 609 java_class->obj_field_put(array_klass_offset, klass); | |
| 610 } | |
| 611 | |
| 612 | |
| 613 methodOop java_lang_Class::resolved_constructor(oop java_class) { | |
| 614 oop constructor = java_class->obj_field(resolved_constructor_offset); | |
| 615 assert(constructor == NULL || constructor->is_method(), "should be method"); | |
| 616 return methodOop(constructor); | |
| 617 } | |
| 618 | |
| 619 | |
| 620 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) { | |
| 621 assert(constructor->is_method(), "should be method"); | |
| 622 java_class->obj_field_put(resolved_constructor_offset, constructor); | |
| 623 } | |
| 624 | |
| 625 | |
| 626 bool java_lang_Class::is_primitive(oop java_class) { | |
|
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627 // should assert: |
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628 //assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
| 0 | 629 klassOop k = klassOop(java_class->obj_field(klass_offset)); |
| 630 return k == NULL; | |
| 631 } | |
| 632 | |
| 633 | |
| 634 BasicType java_lang_Class::primitive_type(oop java_class) { | |
| 635 assert(java_lang_Class::is_primitive(java_class), "just checking"); | |
| 636 klassOop ak = klassOop(java_class->obj_field(array_klass_offset)); | |
| 637 BasicType type = T_VOID; | |
| 638 if (ak != NULL) { | |
| 639 // Note: create_basic_type_mirror above initializes ak to a non-null value. | |
| 640 type = arrayKlass::cast(ak)->element_type(); | |
| 641 } else { | |
| 642 assert(java_class == Universe::void_mirror(), "only valid non-array primitive"); | |
| 643 } | |
| 644 assert(Universe::java_mirror(type) == java_class, "must be consistent"); | |
| 645 return type; | |
| 646 } | |
| 647 | |
|
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648 BasicType java_lang_Class::as_BasicType(oop java_class, klassOop* reference_klass) { |
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649 assert(java_lang_Class::is_instance(java_class), "must be a Class object"); |
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650 if (is_primitive(java_class)) { |
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651 if (reference_klass != NULL) |
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652 (*reference_klass) = NULL; |
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653 return primitive_type(java_class); |
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654 } else { |
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655 if (reference_klass != NULL) |
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656 (*reference_klass) = as_klassOop(java_class); |
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657 return T_OBJECT; |
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658 } |
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659 } |
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660 |
| 0 | 661 |
| 662 oop java_lang_Class::primitive_mirror(BasicType t) { | |
| 663 oop mirror = Universe::java_mirror(t); | |
| 1142 | 664 assert(mirror != NULL && mirror->is_a(SystemDictionary::Class_klass()), "must be a Class"); |
| 0 | 665 assert(java_lang_Class::is_primitive(mirror), "must be primitive"); |
| 666 return mirror; | |
| 667 } | |
| 668 | |
| 669 bool java_lang_Class::offsets_computed = false; | |
| 670 int java_lang_Class::classRedefinedCount_offset = -1; | |
| 514 | 671 int java_lang_Class::parallelCapable_offset = -1; |
| 0 | 672 |
| 673 void java_lang_Class::compute_offsets() { | |
| 674 assert(!offsets_computed, "offsets should be initialized only once"); | |
| 675 offsets_computed = true; | |
| 676 | |
| 1142 | 677 klassOop k = SystemDictionary::Class_klass(); |
| 0 | 678 // The classRedefinedCount field is only present starting in 1.5, |
| 679 // so don't go fatal. | |
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680 compute_optional_offset(classRedefinedCount_offset, |
| 0 | 681 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature()); |
| 514 | 682 |
| 683 // The field indicating parallelCapable (parallelLockMap) is only present starting in 7, | |
| 1142 | 684 klassOop k1 = SystemDictionary::ClassLoader_klass(); |
| 514 | 685 compute_optional_offset(parallelCapable_offset, |
| 686 k1, vmSymbols::parallelCapable_name(), vmSymbols::concurrenthashmap_signature()); | |
| 687 } | |
| 688 | |
| 689 // For class loader classes, parallelCapable defined | |
| 690 // based on non-null field | |
| 691 // Written to by java.lang.ClassLoader, vm only reads this field, doesn't set it | |
| 692 bool java_lang_Class::parallelCapable(oop class_loader) { | |
| 693 if (!JDK_Version::is_gte_jdk17x_version() | |
| 694 || parallelCapable_offset == -1) { | |
| 695 // Default for backward compatibility is false | |
| 696 return false; | |
| 697 } | |
| 698 return (class_loader->obj_field(parallelCapable_offset) != NULL); | |
| 0 | 699 } |
| 700 | |
| 701 int java_lang_Class::classRedefinedCount(oop the_class_mirror) { | |
| 702 if (!JDK_Version::is_gte_jdk15x_version() | |
| 703 || classRedefinedCount_offset == -1) { | |
| 704 // The classRedefinedCount field is only present starting in 1.5. | |
| 705 // If we don't have an offset for it then just return -1 as a marker. | |
| 706 return -1; | |
| 707 } | |
| 708 | |
| 709 return the_class_mirror->int_field(classRedefinedCount_offset); | |
| 710 } | |
| 711 | |
| 712 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) { | |
| 713 if (!JDK_Version::is_gte_jdk15x_version() | |
| 714 || classRedefinedCount_offset == -1) { | |
| 715 // The classRedefinedCount field is only present starting in 1.5. | |
| 716 // If we don't have an offset for it then nothing to set. | |
| 717 return; | |
| 718 } | |
| 719 | |
| 720 the_class_mirror->int_field_put(classRedefinedCount_offset, value); | |
| 721 } | |
| 722 | |
| 723 | |
| 724 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the | |
| 725 // platform thread structure, and a eetop offset which was used for thread | |
| 726 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures | |
| 727 // merged, so in the HotSpot VM we just use the eetop field for the thread | |
| 728 // instead of the privateInfo_offset. | |
| 729 // | |
| 730 // Note: The stackSize field is only present starting in 1.4. | |
| 731 | |
| 732 int java_lang_Thread::_name_offset = 0; | |
| 733 int java_lang_Thread::_group_offset = 0; | |
| 734 int java_lang_Thread::_contextClassLoader_offset = 0; | |
| 735 int java_lang_Thread::_inheritedAccessControlContext_offset = 0; | |
| 736 int java_lang_Thread::_priority_offset = 0; | |
| 737 int java_lang_Thread::_eetop_offset = 0; | |
| 738 int java_lang_Thread::_daemon_offset = 0; | |
| 739 int java_lang_Thread::_stillborn_offset = 0; | |
| 740 int java_lang_Thread::_stackSize_offset = 0; | |
| 741 int java_lang_Thread::_tid_offset = 0; | |
| 742 int java_lang_Thread::_thread_status_offset = 0; | |
| 743 int java_lang_Thread::_park_blocker_offset = 0; | |
| 744 int java_lang_Thread::_park_event_offset = 0 ; | |
| 745 | |
| 746 | |
| 747 void java_lang_Thread::compute_offsets() { | |
| 748 assert(_group_offset == 0, "offsets should be initialized only once"); | |
| 749 | |
| 1142 | 750 klassOop k = SystemDictionary::Thread_klass(); |
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751 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature()); |
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752 compute_offset(_group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature()); |
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753 compute_offset(_contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature()); |
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754 compute_offset(_inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature()); |
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755 compute_offset(_priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature()); |
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756 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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757 compute_offset(_eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature()); |
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758 compute_offset(_stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature()); |
| 0 | 759 // The stackSize field is only present starting in 1.4, so don't go fatal. |
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760 compute_optional_offset(_stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature()); |
| 0 | 761 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal. |
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762 compute_optional_offset(_tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature()); |
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763 compute_optional_offset(_thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature()); |
| 0 | 764 // The parkBlocker field is only present starting in 1.6, so don't go fatal. |
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765 compute_optional_offset(_park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature()); |
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766 compute_optional_offset(_park_event_offset, k, vmSymbols::park_event_name(), |
| 0 | 767 vmSymbols::long_signature()); |
| 768 } | |
| 769 | |
| 770 | |
| 771 JavaThread* java_lang_Thread::thread(oop java_thread) { | |
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772 return (JavaThread*)java_thread->address_field(_eetop_offset); |
| 0 | 773 } |
| 774 | |
| 775 | |
| 776 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) { | |
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777 java_thread->address_field_put(_eetop_offset, (address)thread); |
| 0 | 778 } |
| 779 | |
| 780 | |
| 781 typeArrayOop java_lang_Thread::name(oop java_thread) { | |
| 782 oop name = java_thread->obj_field(_name_offset); | |
| 783 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking"); | |
| 784 return typeArrayOop(name); | |
| 785 } | |
| 786 | |
| 787 | |
| 788 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) { | |
| 789 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL"); | |
| 790 java_thread->obj_field_put(_name_offset, name); | |
| 791 } | |
| 792 | |
| 793 | |
| 794 ThreadPriority java_lang_Thread::priority(oop java_thread) { | |
| 795 return (ThreadPriority)java_thread->int_field(_priority_offset); | |
| 796 } | |
| 797 | |
| 798 | |
| 799 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) { | |
| 800 java_thread->int_field_put(_priority_offset, priority); | |
| 801 } | |
| 802 | |
| 803 | |
| 804 oop java_lang_Thread::threadGroup(oop java_thread) { | |
| 805 return java_thread->obj_field(_group_offset); | |
| 806 } | |
| 807 | |
| 808 | |
| 809 bool java_lang_Thread::is_stillborn(oop java_thread) { | |
| 810 return java_thread->bool_field(_stillborn_offset) != 0; | |
| 811 } | |
| 812 | |
| 813 | |
| 814 // We never have reason to turn the stillborn bit off | |
| 815 void java_lang_Thread::set_stillborn(oop java_thread) { | |
| 816 java_thread->bool_field_put(_stillborn_offset, true); | |
| 817 } | |
| 818 | |
| 819 | |
| 820 bool java_lang_Thread::is_alive(oop java_thread) { | |
| 821 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 822 return (thr != NULL); | |
| 823 } | |
| 824 | |
| 825 | |
| 826 bool java_lang_Thread::is_daemon(oop java_thread) { | |
| 827 return java_thread->bool_field(_daemon_offset) != 0; | |
| 828 } | |
| 829 | |
| 830 | |
| 831 void java_lang_Thread::set_daemon(oop java_thread) { | |
| 832 java_thread->bool_field_put(_daemon_offset, true); | |
| 833 } | |
| 834 | |
| 835 oop java_lang_Thread::context_class_loader(oop java_thread) { | |
| 836 return java_thread->obj_field(_contextClassLoader_offset); | |
| 837 } | |
| 838 | |
| 839 oop java_lang_Thread::inherited_access_control_context(oop java_thread) { | |
| 840 return java_thread->obj_field(_inheritedAccessControlContext_offset); | |
| 841 } | |
| 842 | |
| 843 | |
| 844 jlong java_lang_Thread::stackSize(oop java_thread) { | |
| 845 // The stackSize field is only present starting in 1.4 | |
| 846 if (_stackSize_offset > 0) { | |
| 847 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check"); | |
| 848 return java_thread->long_field(_stackSize_offset); | |
| 849 } else { | |
| 850 return 0; | |
| 851 } | |
| 852 } | |
| 853 | |
| 854 // Write the thread status value to threadStatus field in java.lang.Thread java class. | |
| 855 void java_lang_Thread::set_thread_status(oop java_thread, | |
| 856 java_lang_Thread::ThreadStatus status) { | |
| 857 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm"); | |
| 858 // The threadStatus is only present starting in 1.5 | |
| 859 if (_thread_status_offset > 0) { | |
| 860 java_thread->int_field_put(_thread_status_offset, status); | |
| 861 } | |
| 862 } | |
| 863 | |
| 864 // Read thread status value from threadStatus field in java.lang.Thread java class. | |
| 865 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) { | |
| 866 assert(Thread::current()->is_VM_thread() || | |
| 867 JavaThread::current()->thread_state() == _thread_in_vm, | |
| 868 "Java Thread is not running in vm"); | |
| 869 // The threadStatus is only present starting in 1.5 | |
| 870 if (_thread_status_offset > 0) { | |
| 871 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 872 } else { | |
| 873 // All we can easily figure out is if it is alive, but that is | |
| 874 // enough info for a valid unknown status. | |
| 875 // These aren't restricted to valid set ThreadStatus values, so | |
| 876 // use JVMTI values and cast. | |
| 877 JavaThread* thr = java_lang_Thread::thread(java_thread); | |
| 878 if (thr == NULL) { | |
| 879 // the thread hasn't run yet or is in the process of exiting | |
| 880 return NEW; | |
| 881 } | |
| 882 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE; | |
| 883 } | |
| 884 } | |
| 885 | |
| 886 | |
| 887 jlong java_lang_Thread::thread_id(oop java_thread) { | |
| 888 // The thread ID field is only present starting in 1.5 | |
| 889 if (_tid_offset > 0) { | |
| 890 return java_thread->long_field(_tid_offset); | |
| 891 } else { | |
| 892 return 0; | |
| 893 } | |
| 894 } | |
| 895 | |
| 896 oop java_lang_Thread::park_blocker(oop java_thread) { | |
| 242 | 897 assert(JDK_Version::current().supports_thread_park_blocker() && |
| 898 _park_blocker_offset != 0, "Must support parkBlocker field"); | |
| 0 | 899 |
| 900 if (_park_blocker_offset > 0) { | |
| 901 return java_thread->obj_field(_park_blocker_offset); | |
| 902 } | |
| 903 | |
| 904 return NULL; | |
| 905 } | |
| 906 | |
| 907 jlong java_lang_Thread::park_event(oop java_thread) { | |
| 908 if (_park_event_offset > 0) { | |
| 909 return java_thread->long_field(_park_event_offset); | |
| 910 } | |
| 911 return 0; | |
| 912 } | |
| 913 | |
| 914 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) { | |
| 915 if (_park_event_offset > 0) { | |
| 916 java_thread->long_field_put(_park_event_offset, ptr); | |
| 917 return true; | |
| 918 } | |
| 919 return false; | |
| 920 } | |
| 921 | |
| 922 | |
| 923 const char* java_lang_Thread::thread_status_name(oop java_thread) { | |
| 924 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status"); | |
| 925 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset); | |
| 926 switch (status) { | |
| 927 case NEW : return "NEW"; | |
| 928 case RUNNABLE : return "RUNNABLE"; | |
| 929 case SLEEPING : return "TIMED_WAITING (sleeping)"; | |
| 930 case IN_OBJECT_WAIT : return "WAITING (on object monitor)"; | |
| 931 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)"; | |
| 932 case PARKED : return "WAITING (parking)"; | |
| 933 case PARKED_TIMED : return "TIMED_WAITING (parking)"; | |
| 934 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)"; | |
| 935 case TERMINATED : return "TERMINATED"; | |
| 936 default : return "UNKNOWN"; | |
| 937 }; | |
| 938 } | |
| 939 int java_lang_ThreadGroup::_parent_offset = 0; | |
| 940 int java_lang_ThreadGroup::_name_offset = 0; | |
| 941 int java_lang_ThreadGroup::_threads_offset = 0; | |
| 942 int java_lang_ThreadGroup::_groups_offset = 0; | |
| 943 int java_lang_ThreadGroup::_maxPriority_offset = 0; | |
| 944 int java_lang_ThreadGroup::_destroyed_offset = 0; | |
| 945 int java_lang_ThreadGroup::_daemon_offset = 0; | |
| 946 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0; | |
| 947 int java_lang_ThreadGroup::_nthreads_offset = 0; | |
| 948 int java_lang_ThreadGroup::_ngroups_offset = 0; | |
| 949 | |
| 950 oop java_lang_ThreadGroup::parent(oop java_thread_group) { | |
| 951 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 952 return java_thread_group->obj_field(_parent_offset); | |
| 953 } | |
| 954 | |
| 955 // ("name as oop" accessor is not necessary) | |
| 956 | |
| 957 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) { | |
| 958 oop name = java_thread_group->obj_field(_name_offset); | |
| 959 // ThreadGroup.name can be null | |
| 960 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name); | |
| 961 } | |
| 962 | |
| 963 int java_lang_ThreadGroup::nthreads(oop java_thread_group) { | |
| 964 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 965 return java_thread_group->int_field(_nthreads_offset); | |
| 966 } | |
| 967 | |
| 968 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) { | |
| 969 oop threads = java_thread_group->obj_field(_threads_offset); | |
| 970 assert(threads != NULL, "threadgroups should have threads"); | |
| 971 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 972 return objArrayOop(threads); | |
| 973 } | |
| 974 | |
| 975 int java_lang_ThreadGroup::ngroups(oop java_thread_group) { | |
| 976 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 977 return java_thread_group->int_field(_ngroups_offset); | |
| 978 } | |
| 979 | |
| 980 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) { | |
| 981 oop groups = java_thread_group->obj_field(_groups_offset); | |
| 982 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code | |
| 983 return objArrayOop(groups); | |
| 984 } | |
| 985 | |
| 986 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) { | |
| 987 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 988 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset); | |
| 989 } | |
| 990 | |
| 991 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) { | |
| 992 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 993 return java_thread_group->bool_field(_destroyed_offset) != 0; | |
| 994 } | |
| 995 | |
| 996 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) { | |
| 997 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 998 return java_thread_group->bool_field(_daemon_offset) != 0; | |
| 999 } | |
| 1000 | |
| 1001 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) { | |
| 1002 assert(java_thread_group->is_oop(), "thread group must be oop"); | |
| 1003 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0; | |
| 1004 } | |
| 1005 | |
| 1006 void java_lang_ThreadGroup::compute_offsets() { | |
| 1007 assert(_parent_offset == 0, "offsets should be initialized only once"); | |
| 1008 | |
| 1142 | 1009 klassOop k = SystemDictionary::ThreadGroup_klass(); |
| 0 | 1010 |
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1011 compute_offset(_parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature()); |
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1012 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1013 compute_offset(_threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature()); |
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1014 compute_offset(_groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature()); |
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1015 compute_offset(_maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature()); |
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1016 compute_offset(_destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature()); |
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1017 compute_offset(_daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature()); |
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1018 compute_offset(_vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature()); |
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1019 compute_offset(_nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature()); |
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1020 compute_offset(_ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature()); |
| 0 | 1021 } |
| 1022 | |
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1023 oop java_lang_Throwable::unassigned_stacktrace() { |
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1024 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Throwable_klass()); |
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1025 address addr = ik->static_field_addr(static_unassigned_stacktrace_offset); |
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1026 if (UseCompressedOops) { |
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1027 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
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1028 } else { |
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1029 return oopDesc::load_decode_heap_oop((oop*)addr); |
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1030 } |
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1031 } |
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1032 |
| 0 | 1033 oop java_lang_Throwable::backtrace(oop throwable) { |
| 1034 return throwable->obj_field_acquire(backtrace_offset); | |
| 1035 } | |
| 1036 | |
| 1037 | |
| 1038 void java_lang_Throwable::set_backtrace(oop throwable, oop value) { | |
| 1039 throwable->release_obj_field_put(backtrace_offset, value); | |
| 1040 } | |
| 1041 | |
| 1042 | |
| 1043 oop java_lang_Throwable::message(oop throwable) { | |
| 1044 return throwable->obj_field(detailMessage_offset); | |
| 1045 } | |
| 1046 | |
| 1047 | |
| 1048 oop java_lang_Throwable::message(Handle throwable) { | |
| 1049 return throwable->obj_field(detailMessage_offset); | |
| 1050 } | |
| 1051 | |
| 1052 | |
| 1053 void java_lang_Throwable::set_message(oop throwable, oop value) { | |
| 1054 throwable->obj_field_put(detailMessage_offset, value); | |
| 1055 } | |
| 1056 | |
| 1057 | |
|
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1058 void java_lang_Throwable::set_stacktrace(oop throwable, oop st_element_array) { |
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1059 throwable->obj_field_put(stackTrace_offset, st_element_array); |
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1060 } |
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1061 |
| 0 | 1062 void java_lang_Throwable::clear_stacktrace(oop throwable) { |
| 1063 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
|
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1064 set_stacktrace(throwable, NULL); |
| 0 | 1065 } |
| 1066 | |
| 1067 | |
| 1068 void java_lang_Throwable::print(oop throwable, outputStream* st) { | |
| 1069 ResourceMark rm; | |
| 1070 klassOop k = throwable->klass(); | |
| 1071 assert(k != NULL, "just checking"); | |
| 1072 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1073 oop msg = message(throwable); | |
| 1074 if (msg != NULL) { | |
| 1075 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1076 } | |
| 1077 } | |
| 1078 | |
| 1079 | |
| 1080 void java_lang_Throwable::print(Handle throwable, outputStream* st) { | |
| 1081 ResourceMark rm; | |
| 1082 klassOop k = throwable->klass(); | |
| 1083 assert(k != NULL, "just checking"); | |
| 1084 st->print("%s", instanceKlass::cast(k)->external_name()); | |
| 1085 oop msg = message(throwable); | |
| 1086 if (msg != NULL) { | |
| 1087 st->print(": %s", java_lang_String::as_utf8_string(msg)); | |
| 1088 } | |
| 1089 } | |
| 1090 | |
| 1091 // Print stack trace element to resource allocated buffer | |
| 1092 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) { | |
| 1093 // Get strings and string lengths | |
| 1094 instanceKlass* klass = instanceKlass::cast(method->method_holder()); | |
| 1095 const char* klass_name = klass->external_name(); | |
| 1096 int buf_len = (int)strlen(klass_name); | |
| 1097 char* source_file_name; | |
| 1098 if (klass->source_file_name() == NULL) { | |
| 1099 source_file_name = NULL; | |
| 1100 } else { | |
| 1101 source_file_name = klass->source_file_name()->as_C_string(); | |
| 1102 buf_len += (int)strlen(source_file_name); | |
| 1103 } | |
| 1104 char* method_name = method->name()->as_C_string(); | |
| 1105 buf_len += (int)strlen(method_name); | |
| 1106 | |
| 1107 // Allocate temporary buffer with extra space for formatting and line number | |
| 1108 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64); | |
| 1109 | |
| 1110 // Print stack trace line in buffer | |
| 1111 sprintf(buf, "\tat %s.%s", klass_name, method_name); | |
| 1112 if (method->is_native()) { | |
| 1113 strcat(buf, "(Native Method)"); | |
| 1114 } else { | |
| 1115 int line_number = method->line_number_from_bci(bci); | |
| 1116 if (source_file_name != NULL && (line_number != -1)) { | |
| 1117 // Sourcename and linenumber | |
| 1118 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number); | |
| 1119 } else if (source_file_name != NULL) { | |
| 1120 // Just sourcename | |
| 1121 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name); | |
| 1122 } else { | |
| 1123 // Neither soucename and linenumber | |
| 1124 sprintf(buf + (int)strlen(buf), "(Unknown Source)"); | |
| 1125 } | |
| 1126 nmethod* nm = method->code(); | |
| 1127 if (WizardMode && nm != NULL) { | |
|
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1128 sprintf(buf + (int)strlen(buf), "(nmethod " PTR_FORMAT ")", (intptr_t)nm); |
| 0 | 1129 } |
| 1130 } | |
| 1131 | |
| 1132 return buf; | |
| 1133 } | |
| 1134 | |
| 1135 | |
| 1136 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) { | |
| 1137 ResourceMark rm; | |
| 1138 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1139 print_to_stream(stream, buf); | |
| 1140 } | |
| 1141 | |
| 1142 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) { | |
| 1143 ResourceMark rm; | |
| 1144 char* buf = print_stack_element_to_buffer(method, bci); | |
| 1145 st->print_cr("%s", buf); | |
| 1146 } | |
| 1147 | |
| 1148 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) { | |
| 1149 if (stream.is_null()) { | |
| 1150 tty->print_cr("%s", str); | |
| 1151 } else { | |
| 1152 EXCEPTION_MARK; | |
| 1153 JavaValue result(T_VOID); | |
| 1154 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD)); | |
| 1155 if (!HAS_PENDING_EXCEPTION) { | |
| 1156 JavaCalls::call_virtual(&result, | |
| 1157 stream, | |
| 1158 KlassHandle(THREAD, stream->klass()), | |
|
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1159 vmSymbols::println_name(), |
|
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1160 vmSymbols::char_array_void_signature(), |
| 0 | 1161 arg, |
| 1162 THREAD); | |
| 1163 } | |
| 1164 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1165 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
| 1166 } | |
| 1167 | |
| 1168 } | |
| 1169 | |
| 1170 | |
| 1171 const char* java_lang_Throwable::no_stack_trace_message() { | |
| 1172 return "\t<<no stack trace available>>"; | |
| 1173 } | |
| 1174 | |
| 1175 | |
| 1176 // Currently used only for exceptions occurring during startup | |
| 1177 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) { | |
| 1178 Thread *THREAD = Thread::current(); | |
| 1179 Handle h_throwable(THREAD, throwable); | |
| 1180 while (h_throwable.not_null()) { | |
| 1181 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable()))); | |
| 1182 if (result.is_null()) { | |
| 1183 st->print_cr(no_stack_trace_message()); | |
| 1184 return; | |
| 1185 } | |
| 1186 | |
| 1187 while (result.not_null()) { | |
| 1188 objArrayHandle methods (THREAD, | |
| 1189 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1190 typeArrayHandle bcis (THREAD, | |
| 1191 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1192 | |
| 1193 if (methods.is_null() || bcis.is_null()) { | |
| 1194 st->print_cr(no_stack_trace_message()); | |
| 1195 return; | |
| 1196 } | |
| 1197 | |
| 1198 int length = methods()->length(); | |
| 1199 for (int index = 0; index < length; index++) { | |
| 1200 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1201 if (method == NULL) goto handle_cause; | |
| 1202 int bci = bcis->ushort_at(index); | |
| 1203 print_stack_element(st, method, bci); | |
| 1204 } | |
| 1205 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1206 } | |
| 1207 handle_cause: | |
| 1208 { | |
| 1209 EXCEPTION_MARK; | |
| 1210 JavaValue result(T_OBJECT); | |
| 1211 JavaCalls::call_virtual(&result, | |
| 1212 h_throwable, | |
| 1213 KlassHandle(THREAD, h_throwable->klass()), | |
|
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1214 vmSymbols::getCause_name(), |
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1215 vmSymbols::void_throwable_signature(), |
| 0 | 1216 THREAD); |
| 1217 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM. | |
| 1218 if (HAS_PENDING_EXCEPTION) { | |
| 1219 CLEAR_PENDING_EXCEPTION; | |
| 1220 h_throwable = Handle(); | |
| 1221 } else { | |
| 1222 h_throwable = Handle(THREAD, (oop) result.get_jobject()); | |
| 1223 if (h_throwable.not_null()) { | |
| 1224 st->print("Caused by: "); | |
| 1225 print(h_throwable, st); | |
| 1226 st->cr(); | |
| 1227 } | |
| 1228 } | |
| 1229 } | |
| 1230 } | |
| 1231 } | |
| 1232 | |
| 1233 | |
| 1234 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) { | |
| 1235 // Note: this is no longer used in Merlin, but we support it for compatibility. | |
| 1236 Thread *thread = Thread::current(); | |
| 1237 Handle stream(thread, print_stream); | |
| 1238 objArrayHandle result (thread, objArrayOop(backtrace(throwable))); | |
| 1239 if (result.is_null()) { | |
| 1240 print_to_stream(stream, no_stack_trace_message()); | |
| 1241 return; | |
| 1242 } | |
| 1243 | |
| 1244 while (result.not_null()) { | |
| 1245 objArrayHandle methods (thread, | |
| 1246 objArrayOop(result->obj_at(trace_methods_offset))); | |
| 1247 typeArrayHandle bcis (thread, | |
| 1248 typeArrayOop(result->obj_at(trace_bcis_offset))); | |
| 1249 | |
| 1250 if (methods.is_null() || bcis.is_null()) { | |
| 1251 print_to_stream(stream, no_stack_trace_message()); | |
| 1252 return; | |
| 1253 } | |
| 1254 | |
| 1255 int length = methods()->length(); | |
| 1256 for (int index = 0; index < length; index++) { | |
| 1257 methodOop method = methodOop(methods()->obj_at(index)); | |
| 1258 if (method == NULL) return; | |
| 1259 int bci = bcis->ushort_at(index); | |
| 1260 print_stack_element(stream, method, bci); | |
| 1261 } | |
| 1262 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset))); | |
| 1263 } | |
| 1264 } | |
| 1265 | |
| 1266 // This class provides a simple wrapper over the internal structure of | |
| 1267 // exception backtrace to insulate users of the backtrace from needing | |
| 1268 // to know what it looks like. | |
| 1269 class BacktraceBuilder: public StackObj { | |
| 1270 private: | |
| 1271 Handle _backtrace; | |
| 1272 objArrayOop _head; | |
| 1273 objArrayOop _methods; | |
| 1274 typeArrayOop _bcis; | |
| 1275 int _index; | |
| 1276 No_Safepoint_Verifier _nsv; | |
| 1277 | |
| 1278 public: | |
| 1279 | |
| 1280 enum { | |
| 1281 trace_methods_offset = java_lang_Throwable::trace_methods_offset, | |
| 1282 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset, | |
| 1283 trace_next_offset = java_lang_Throwable::trace_next_offset, | |
| 1284 trace_size = java_lang_Throwable::trace_size, | |
| 1285 trace_chunk_size = java_lang_Throwable::trace_chunk_size | |
| 1286 }; | |
| 1287 | |
| 1288 // constructor for new backtrace | |
|
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1289 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) { |
| 0 | 1290 expand(CHECK); |
| 1291 _backtrace = _head; | |
| 1292 _index = 0; | |
| 1293 } | |
| 1294 | |
| 1295 void expand(TRAPS) { | |
| 1296 objArrayHandle old_head(THREAD, _head); | |
| 1297 Pause_No_Safepoint_Verifier pnsv(&_nsv); | |
| 1298 | |
| 1299 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1300 objArrayHandle new_head(THREAD, head); | |
| 1301 | |
| 1302 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1303 objArrayHandle new_methods(THREAD, methods); | |
| 1304 | |
| 1305 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1306 typeArrayHandle new_bcis(THREAD, bcis); | |
| 1307 | |
| 1308 if (!old_head.is_null()) { | |
| 1309 old_head->obj_at_put(trace_next_offset, new_head()); | |
| 1310 } | |
| 1311 new_head->obj_at_put(trace_methods_offset, new_methods()); | |
| 1312 new_head->obj_at_put(trace_bcis_offset, new_bcis()); | |
| 1313 | |
| 1314 _head = new_head(); | |
| 1315 _methods = new_methods(); | |
| 1316 _bcis = new_bcis(); | |
| 1317 _index = 0; | |
| 1318 } | |
| 1319 | |
| 1320 oop backtrace() { | |
| 1321 return _backtrace(); | |
| 1322 } | |
| 1323 | |
| 1324 inline void push(methodOop method, short bci, TRAPS) { | |
| 1325 if (_index >= trace_chunk_size) { | |
| 1326 methodHandle mhandle(THREAD, method); | |
| 1327 expand(CHECK); | |
| 1328 method = mhandle(); | |
| 1329 } | |
| 1330 | |
|
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1331 _methods->obj_at_put(_index, method); |
| 0 | 1332 _bcis->ushort_at_put(_index, bci); |
| 1333 _index++; | |
| 1334 } | |
| 1335 | |
| 1336 methodOop current_method() { | |
| 1337 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1338 return methodOop(_methods->obj_at(_index)); | |
| 1339 } | |
| 1340 | |
| 1341 jushort current_bci() { | |
| 1342 assert(_index >= 0 && _index < trace_chunk_size, "out of range"); | |
| 1343 return _bcis->ushort_at(_index); | |
| 1344 } | |
| 1345 }; | |
| 1346 | |
| 1347 | |
|
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1348 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method, TRAPS) { |
| 0 | 1349 if (!StackTraceInThrowable) return; |
| 1350 ResourceMark rm(THREAD); | |
| 1351 | |
| 1352 // Start out by clearing the backtrace for this object, in case the VM | |
| 1353 // runs out of memory while allocating the stack trace | |
| 1354 set_backtrace(throwable(), NULL); | |
| 1355 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 1356 // New since 1.4, clear lazily constructed Java level stacktrace if | |
| 1357 // refilling occurs | |
|
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1358 // This is unnecessary in 1.7+ but harmless |
| 0 | 1359 clear_stacktrace(throwable()); |
| 1360 } | |
| 1361 | |
| 1362 int max_depth = MaxJavaStackTraceDepth; | |
| 1363 JavaThread* thread = (JavaThread*)THREAD; | |
| 1364 BacktraceBuilder bt(CHECK); | |
| 1365 | |
|
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1366 // If there is no Java frame just return the method that was being called |
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1367 // with bci 0 |
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1368 if (!thread->has_last_Java_frame()) { |
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1369 if (max_depth >= 1 && method() != NULL) { |
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1370 bt.push(method(), 0, CHECK); |
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1371 set_backtrace(throwable(), bt.backtrace()); |
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1372 } |
|
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1373 return; |
|
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1374 } |
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1375 |
| 0 | 1376 // Instead of using vframe directly, this version of fill_in_stack_trace |
| 1377 // basically handles everything by hand. This significantly improved the | |
| 1378 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows. | |
| 1379 // See bug 6333838 for more details. | |
| 1380 // The "ASSERT" here is to verify this method generates the exactly same stack | |
| 1381 // trace as utilizing vframe. | |
| 1382 #ifdef ASSERT | |
| 1383 vframeStream st(thread); | |
| 1384 methodHandle st_method(THREAD, st.method()); | |
| 1385 #endif | |
| 1386 int total_count = 0; | |
| 1387 RegisterMap map(thread, false); | |
| 1388 int decode_offset = 0; | |
| 1389 nmethod* nm = NULL; | |
| 1390 bool skip_fillInStackTrace_check = false; | |
| 1391 bool skip_throwableInit_check = false; | |
| 1392 | |
| 1393 for (frame fr = thread->last_frame(); max_depth != total_count;) { | |
| 1394 methodOop method = NULL; | |
| 1395 int bci = 0; | |
| 1396 | |
| 1397 // Compiled java method case. | |
| 1398 if (decode_offset != 0) { | |
| 1399 DebugInfoReadStream stream(nm, decode_offset); | |
| 1400 decode_offset = stream.read_int(); | |
| 1401 method = (methodOop)nm->oop_at(stream.read_int()); | |
|
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1402 bci = stream.read_bci(); |
| 0 | 1403 } else { |
| 1404 if (fr.is_first_frame()) break; | |
| 1405 address pc = fr.pc(); | |
| 1406 if (fr.is_interpreted_frame()) { | |
| 1407 intptr_t bcx = fr.interpreter_frame_bcx(); | |
| 1408 method = fr.interpreter_frame_method(); | |
| 1409 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx); | |
| 1410 fr = fr.sender(&map); | |
| 1411 } else { | |
| 1412 CodeBlob* cb = fr.cb(); | |
| 1413 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL | |
| 1414 // but non nmethod | |
| 1415 fr = fr.sender(&map); | |
| 1416 if (cb == NULL || !cb->is_nmethod()) { | |
| 1417 continue; | |
| 1418 } | |
| 1419 nm = (nmethod*)cb; | |
| 1420 if (nm->method()->is_native()) { | |
| 1421 method = nm->method(); | |
| 1422 bci = 0; | |
| 1423 } else { | |
| 1424 PcDesc* pd = nm->pc_desc_at(pc); | |
| 1425 decode_offset = pd->scope_decode_offset(); | |
| 1426 // if decode_offset is not equal to 0, it will execute the | |
| 1427 // "compiled java method case" at the beginning of the loop. | |
| 1428 continue; | |
| 1429 } | |
| 1430 } | |
| 1431 } | |
| 1432 #ifdef ASSERT | |
|
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1433 assert(st_method() == method && st.bci() == bci, |
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1434 "Wrong stack trace"); |
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1435 st.next(); |
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1436 // vframeStream::method isn't GC-safe so store off a copy |
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1437 // of the methodOop in case we GC. |
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1438 if (!st.at_end()) { |
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1439 st_method = st.method(); |
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1440 } |
| 0 | 1441 #endif |
|
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1442 |
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1443 // the format of the stacktrace will be: |
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1444 // - 1 or more fillInStackTrace frames for the exception class (skipped) |
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1445 // - 0 or more <init> methods for the exception class (skipped) |
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1446 // - rest of the stack |
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1447 |
| 0 | 1448 if (!skip_fillInStackTrace_check) { |
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1449 if ((method->name() == vmSymbols::fillInStackTrace_name() || |
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1450 method->name() == vmSymbols::fillInStackTrace0_name()) && |
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1451 throwable->is_a(method->method_holder())) { |
| 0 | 1452 continue; |
| 1453 } | |
|
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1454 else { |
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1455 skip_fillInStackTrace_check = true; // gone past them all |
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1456 } |
| 0 | 1457 } |
| 1458 if (!skip_throwableInit_check) { | |
|
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1459 assert(skip_fillInStackTrace_check, "logic error in backtrace filtering"); |
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1460 |
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1461 // skip <init> methods of the exception class and superclasses |
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1462 // This is simlar to classic VM. |
| 0 | 1463 if (method->name() == vmSymbols::object_initializer_name() && |
| 1464 throwable->is_a(method->method_holder())) { | |
| 1465 continue; | |
| 1466 } else { | |
|
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1467 // there are none or we've seen them all - either way stop checking |
| 0 | 1468 skip_throwableInit_check = true; |
| 1469 } | |
| 1470 } | |
| 1471 bt.push(method, bci, CHECK); | |
| 1472 total_count++; | |
| 1473 } | |
| 1474 | |
| 1475 // Put completed stack trace into throwable object | |
| 1476 set_backtrace(throwable(), bt.backtrace()); | |
| 1477 } | |
| 1478 | |
|
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1479 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, methodHandle method) { |
| 0 | 1480 // No-op if stack trace is disabled |
| 1481 if (!StackTraceInThrowable) { | |
| 1482 return; | |
| 1483 } | |
| 1484 | |
| 1485 // Disable stack traces for some preallocated out of memory errors | |
| 1486 if (!Universe::should_fill_in_stack_trace(throwable)) { | |
| 1487 return; | |
| 1488 } | |
| 1489 | |
| 1490 PRESERVE_EXCEPTION_MARK; | |
| 1491 | |
| 1492 JavaThread* thread = JavaThread::active(); | |
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1493 fill_in_stack_trace(throwable, method, thread); |
| 0 | 1494 // ignore exceptions thrown during stack trace filling |
| 1495 CLEAR_PENDING_EXCEPTION; | |
| 1496 } | |
| 1497 | |
| 1498 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) { | |
| 1499 // Allocate stack trace - backtrace is created but not filled in | |
| 1500 | |
| 1501 // No-op if stack trace is disabled | |
| 1502 if (!StackTraceInThrowable) return; | |
| 1503 | |
| 1504 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK); | |
| 1505 objArrayHandle backtrace (THREAD, h_oop); | |
| 1506 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK); | |
| 1507 objArrayHandle methods (THREAD, m_oop); | |
| 1508 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK); | |
| 1509 typeArrayHandle bcis(THREAD, b); | |
| 1510 | |
| 1511 // backtrace has space for one chunk (next is NULL) | |
| 1512 backtrace->obj_at_put(trace_methods_offset, methods()); | |
| 1513 backtrace->obj_at_put(trace_bcis_offset, bcis()); | |
| 1514 set_backtrace(throwable(), backtrace()); | |
| 1515 } | |
| 1516 | |
| 1517 | |
| 1518 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) { | |
| 1519 // Fill in stack trace into preallocated backtrace (no GC) | |
| 1520 | |
| 1521 // No-op if stack trace is disabled | |
| 1522 if (!StackTraceInThrowable) return; | |
| 1523 | |
| 1142 | 1524 assert(throwable->is_a(SystemDictionary::Throwable_klass()), "sanity check"); |
| 0 | 1525 |
| 1526 oop backtrace = java_lang_Throwable::backtrace(throwable()); | |
| 1527 assert(backtrace != NULL, "backtrace not preallocated"); | |
| 1528 | |
| 1529 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset); | |
| 1530 objArrayOop methods = objArrayOop(m); | |
| 1531 assert(methods != NULL && methods->length() > 0, "method array not preallocated"); | |
| 1532 | |
| 1533 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset); | |
| 1534 typeArrayOop bcis = typeArrayOop(b); | |
| 1535 assert(bcis != NULL, "bci array not preallocated"); | |
| 1536 | |
| 1537 assert(methods->length() == bcis->length(), "method and bci arrays should match"); | |
| 1538 | |
| 1539 JavaThread* thread = JavaThread::current(); | |
| 1540 ResourceMark rm(thread); | |
| 1541 vframeStream st(thread); | |
| 1542 | |
| 1543 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init | |
| 1544 // methods as preallocated errors aren't created by "java" code. | |
| 1545 | |
| 1546 // fill in as much stack trace as possible | |
| 1547 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth); | |
| 1548 int chunk_count = 0; | |
| 1549 | |
| 1550 for (;!st.at_end(); st.next()) { | |
| 1551 // add element | |
| 1552 bcis->ushort_at_put(chunk_count, st.bci()); | |
| 1553 methods->obj_at_put(chunk_count, st.method()); | |
| 1554 | |
| 1555 chunk_count++; | |
| 1556 | |
| 1557 // Bail-out for deep stacks | |
| 1558 if (chunk_count >= max_chunks) break; | |
| 1559 } | |
|
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1560 |
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1561 // For Java 7+ we support the Throwable immutability protocol defined for Java 7. This support |
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1562 // was missing in 7u0 so in 7u0 there is a workaround in the Throwable class. That workaround |
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1563 // can be removed in a JDK using this JVM version |
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1564 if (JDK_Version::is_gte_jdk17x_version()) { |
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1565 java_lang_Throwable::set_stacktrace(throwable(), java_lang_Throwable::unassigned_stacktrace()); |
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1566 assert(java_lang_Throwable::unassigned_stacktrace() != NULL, "not initialized"); |
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1567 } |
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1568 |
| 0 | 1569 } |
| 1570 | |
| 1571 | |
| 1572 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) { | |
| 1573 if (throwable == NULL) { | |
| 1574 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1575 } | |
| 1576 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1577 int depth = 0; | |
| 1578 if (chunk != NULL) { | |
| 1579 // Iterate over chunks and count full ones | |
| 1580 while (true) { | |
| 1581 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1582 if (next == NULL) break; | |
| 1583 depth += trace_chunk_size; | |
| 1584 chunk = next; | |
| 1585 } | |
| 1586 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check"); | |
| 1587 // Count element in remaining partial chunk | |
| 1588 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1589 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1590 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1591 for (int i = 0; i < methods->length(); i++) { | |
| 1592 if (methods->obj_at(i) == NULL) break; | |
| 1593 depth++; | |
| 1594 } | |
| 1595 } | |
| 1596 return depth; | |
| 1597 } | |
| 1598 | |
| 1599 | |
| 1600 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) { | |
| 1601 if (throwable == NULL) { | |
| 1602 THROW_0(vmSymbols::java_lang_NullPointerException()); | |
| 1603 } | |
| 1604 if (index < 0) { | |
| 1605 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1606 } | |
| 1607 // Compute how many chunks to skip and index into actual chunk | |
| 1608 objArrayOop chunk = objArrayOop(backtrace(throwable)); | |
| 1609 int skip_chunks = index / trace_chunk_size; | |
| 1610 int chunk_index = index % trace_chunk_size; | |
| 1611 while (chunk != NULL && skip_chunks > 0) { | |
| 1612 chunk = objArrayOop(chunk->obj_at(trace_next_offset)); | |
| 1613 skip_chunks--; | |
| 1614 } | |
| 1615 if (chunk == NULL) { | |
| 1616 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1617 } | |
| 1618 // Get method,bci from chunk | |
| 1619 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset)); | |
| 1620 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset)); | |
| 1621 assert(methods != NULL && bcis != NULL, "sanity check"); | |
| 1622 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index))); | |
| 1623 int bci = bcis->ushort_at(chunk_index); | |
| 1624 // Chunk can be partial full | |
| 1625 if (method.is_null()) { | |
| 1626 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL); | |
| 1627 } | |
| 1628 | |
| 1629 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0); | |
| 1630 return element; | |
| 1631 } | |
| 1632 | |
| 1633 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) { | |
| 1634 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs | |
| 1635 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4"); | |
| 1636 | |
| 1637 // Allocate java.lang.StackTraceElement instance | |
| 1142 | 1638 klassOop k = SystemDictionary::StackTraceElement_klass(); |
|
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1639 assert(k != NULL, "must be loaded in 1.4+"); |
| 0 | 1640 instanceKlassHandle ik (THREAD, k); |
| 1641 if (ik->should_be_initialized()) { | |
| 1642 ik->initialize(CHECK_0); | |
| 1643 } | |
| 1644 | |
| 1645 Handle element = ik->allocate_instance_handle(CHECK_0); | |
| 1646 // Fill in class name | |
| 1647 ResourceMark rm(THREAD); | |
| 1648 const char* str = instanceKlass::cast(method->method_holder())->external_name(); | |
| 1649 oop classname = StringTable::intern((char*) str, CHECK_0); | |
| 1650 java_lang_StackTraceElement::set_declaringClass(element(), classname); | |
| 1651 // Fill in method name | |
| 1652 oop methodname = StringTable::intern(method->name(), CHECK_0); | |
| 1653 java_lang_StackTraceElement::set_methodName(element(), methodname); | |
| 1654 // Fill in source file name | |
|
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1655 Symbol* source = instanceKlass::cast(method->method_holder())->source_file_name(); |
| 0 | 1656 oop filename = StringTable::intern(source, CHECK_0); |
| 1657 java_lang_StackTraceElement::set_fileName(element(), filename); | |
| 1658 // File in source line number | |
| 1659 int line_number; | |
| 1660 if (method->is_native()) { | |
| 1661 // Negative value different from -1 below, enabling Java code in | |
| 1662 // class java.lang.StackTraceElement to distinguish "native" from | |
| 1663 // "no LineNumberTable". | |
| 1664 line_number = -2; | |
| 1665 } else { | |
| 1666 // Returns -1 if no LineNumberTable, and otherwise actual line number | |
| 1667 line_number = method->line_number_from_bci(bci); | |
| 1668 } | |
| 1669 java_lang_StackTraceElement::set_lineNumber(element(), line_number); | |
| 1670 | |
| 1671 return element(); | |
| 1672 } | |
| 1673 | |
| 1674 | |
| 1675 void java_lang_reflect_AccessibleObject::compute_offsets() { | |
| 1142 | 1676 klassOop k = SystemDictionary::reflect_AccessibleObject_klass(); |
|
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1677 compute_offset(override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature()); |
| 0 | 1678 } |
| 1679 | |
| 1680 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) { | |
| 1681 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1682 return (jboolean) reflect->bool_field(override_offset); | |
| 1683 } | |
| 1684 | |
| 1685 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) { | |
| 1686 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1687 reflect->bool_field_put(override_offset, (int) value); | |
| 1688 } | |
| 1689 | |
| 1690 void java_lang_reflect_Method::compute_offsets() { | |
| 1142 | 1691 klassOop k = SystemDictionary::reflect_Method_klass(); |
|
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1692 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1693 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1694 compute_offset(returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature()); |
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1695 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1696 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1697 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1698 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1699 // The generic signature and annotations fields are only present in 1.5 |
| 1700 signature_offset = -1; | |
| 1701 annotations_offset = -1; | |
| 1702 parameter_annotations_offset = -1; | |
| 1703 annotation_default_offset = -1; | |
|
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1704 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1705 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1706 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
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1707 compute_optional_offset(annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature()); |
| 0 | 1708 } |
| 1709 | |
| 1710 Handle java_lang_reflect_Method::create(TRAPS) { | |
| 1711 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 1712 klassOop klass = SystemDictionary::reflect_Method_klass(); |
| 0 | 1713 // This class is eagerly initialized during VM initialization, since we keep a refence |
| 1714 // to one of the methods | |
| 1715 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized"); | |
| 1716 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH); | |
| 1717 } | |
| 1718 | |
| 1719 oop java_lang_reflect_Method::clazz(oop reflect) { | |
| 1720 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1721 return reflect->obj_field(clazz_offset); | |
| 1722 } | |
| 1723 | |
| 1724 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) { | |
| 1725 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1726 reflect->obj_field_put(clazz_offset, value); | |
| 1727 } | |
| 1728 | |
| 1729 int java_lang_reflect_Method::slot(oop reflect) { | |
| 1730 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1731 return reflect->int_field(slot_offset); | |
| 1732 } | |
| 1733 | |
| 1734 void java_lang_reflect_Method::set_slot(oop reflect, int value) { | |
| 1735 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1736 reflect->int_field_put(slot_offset, value); | |
| 1737 } | |
| 1738 | |
| 1739 oop java_lang_reflect_Method::name(oop method) { | |
| 1740 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1741 return method->obj_field(name_offset); | |
| 1742 } | |
| 1743 | |
| 1744 void java_lang_reflect_Method::set_name(oop method, oop value) { | |
| 1745 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1746 method->obj_field_put(name_offset, value); | |
| 1747 } | |
| 1748 | |
| 1749 oop java_lang_reflect_Method::return_type(oop method) { | |
| 1750 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1751 return method->obj_field(returnType_offset); | |
| 1752 } | |
| 1753 | |
| 1754 void java_lang_reflect_Method::set_return_type(oop method, oop value) { | |
| 1755 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1756 method->obj_field_put(returnType_offset, value); | |
| 1757 } | |
| 1758 | |
| 1759 oop java_lang_reflect_Method::parameter_types(oop method) { | |
| 1760 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1761 return method->obj_field(parameterTypes_offset); | |
| 1762 } | |
| 1763 | |
| 1764 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) { | |
| 1765 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1766 method->obj_field_put(parameterTypes_offset, value); | |
| 1767 } | |
| 1768 | |
| 1769 oop java_lang_reflect_Method::exception_types(oop method) { | |
| 1770 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1771 return method->obj_field(exceptionTypes_offset); | |
| 1772 } | |
| 1773 | |
| 1774 void java_lang_reflect_Method::set_exception_types(oop method, oop value) { | |
| 1775 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1776 method->obj_field_put(exceptionTypes_offset, value); | |
| 1777 } | |
| 1778 | |
| 1779 int java_lang_reflect_Method::modifiers(oop method) { | |
| 1780 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1781 return method->int_field(modifiers_offset); | |
| 1782 } | |
| 1783 | |
| 1784 void java_lang_reflect_Method::set_modifiers(oop method, int value) { | |
| 1785 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1786 method->int_field_put(modifiers_offset, value); | |
| 1787 } | |
| 1788 | |
| 1789 bool java_lang_reflect_Method::has_signature_field() { | |
| 1790 return (signature_offset >= 0); | |
| 1791 } | |
| 1792 | |
| 1793 oop java_lang_reflect_Method::signature(oop method) { | |
| 1794 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1795 assert(has_signature_field(), "signature field must be present"); | |
| 1796 return method->obj_field(signature_offset); | |
| 1797 } | |
| 1798 | |
| 1799 void java_lang_reflect_Method::set_signature(oop method, oop value) { | |
| 1800 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1801 assert(has_signature_field(), "signature field must be present"); | |
| 1802 method->obj_field_put(signature_offset, value); | |
| 1803 } | |
| 1804 | |
| 1805 bool java_lang_reflect_Method::has_annotations_field() { | |
| 1806 return (annotations_offset >= 0); | |
| 1807 } | |
| 1808 | |
| 1809 oop java_lang_reflect_Method::annotations(oop method) { | |
| 1810 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1811 assert(has_annotations_field(), "annotations field must be present"); | |
| 1812 return method->obj_field(annotations_offset); | |
| 1813 } | |
| 1814 | |
| 1815 void java_lang_reflect_Method::set_annotations(oop method, oop value) { | |
| 1816 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1817 assert(has_annotations_field(), "annotations field must be present"); | |
| 1818 method->obj_field_put(annotations_offset, value); | |
| 1819 } | |
| 1820 | |
| 1821 bool java_lang_reflect_Method::has_parameter_annotations_field() { | |
| 1822 return (parameter_annotations_offset >= 0); | |
| 1823 } | |
| 1824 | |
| 1825 oop java_lang_reflect_Method::parameter_annotations(oop method) { | |
| 1826 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1827 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1828 return method->obj_field(parameter_annotations_offset); | |
| 1829 } | |
| 1830 | |
| 1831 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) { | |
| 1832 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1833 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1834 method->obj_field_put(parameter_annotations_offset, value); | |
| 1835 } | |
| 1836 | |
| 1837 bool java_lang_reflect_Method::has_annotation_default_field() { | |
| 1838 return (annotation_default_offset >= 0); | |
| 1839 } | |
| 1840 | |
| 1841 oop java_lang_reflect_Method::annotation_default(oop method) { | |
| 1842 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1843 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1844 return method->obj_field(annotation_default_offset); | |
| 1845 } | |
| 1846 | |
| 1847 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) { | |
| 1848 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1849 assert(has_annotation_default_field(), "annotation default field must be present"); | |
| 1850 method->obj_field_put(annotation_default_offset, value); | |
| 1851 } | |
| 1852 | |
| 1853 void java_lang_reflect_Constructor::compute_offsets() { | |
| 1142 | 1854 klassOop k = SystemDictionary::reflect_Constructor_klass(); |
|
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1855 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1856 compute_offset(parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature()); |
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1857 compute_offset(exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature()); |
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1858 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1859 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1860 // The generic signature and annotations fields are only present in 1.5 |
| 1861 signature_offset = -1; | |
| 1862 annotations_offset = -1; | |
| 1863 parameter_annotations_offset = -1; | |
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1864 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1865 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
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1866 compute_optional_offset(parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1867 } |
| 1868 | |
| 1869 Handle java_lang_reflect_Constructor::create(TRAPS) { | |
| 1870 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1871 Symbol* name = vmSymbols::java_lang_reflect_Constructor(); |
| 0 | 1872 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1873 instanceKlassHandle klass (THREAD, k); | |
| 1874 // Ensure it is initialized | |
| 1875 klass->initialize(CHECK_NH); | |
| 1876 return klass->allocate_instance_handle(CHECK_NH); | |
| 1877 } | |
| 1878 | |
| 1879 oop java_lang_reflect_Constructor::clazz(oop reflect) { | |
| 1880 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1881 return reflect->obj_field(clazz_offset); | |
| 1882 } | |
| 1883 | |
| 1884 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) { | |
| 1885 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1886 reflect->obj_field_put(clazz_offset, value); | |
| 1887 } | |
| 1888 | |
| 1889 oop java_lang_reflect_Constructor::parameter_types(oop constructor) { | |
| 1890 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1891 return constructor->obj_field(parameterTypes_offset); | |
| 1892 } | |
| 1893 | |
| 1894 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) { | |
| 1895 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1896 constructor->obj_field_put(parameterTypes_offset, value); | |
| 1897 } | |
| 1898 | |
| 1899 oop java_lang_reflect_Constructor::exception_types(oop constructor) { | |
| 1900 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1901 return constructor->obj_field(exceptionTypes_offset); | |
| 1902 } | |
| 1903 | |
| 1904 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) { | |
| 1905 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1906 constructor->obj_field_put(exceptionTypes_offset, value); | |
| 1907 } | |
| 1908 | |
| 1909 int java_lang_reflect_Constructor::slot(oop reflect) { | |
| 1910 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1911 return reflect->int_field(slot_offset); | |
| 1912 } | |
| 1913 | |
| 1914 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) { | |
| 1915 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1916 reflect->int_field_put(slot_offset, value); | |
| 1917 } | |
| 1918 | |
| 1919 int java_lang_reflect_Constructor::modifiers(oop constructor) { | |
| 1920 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1921 return constructor->int_field(modifiers_offset); | |
| 1922 } | |
| 1923 | |
| 1924 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) { | |
| 1925 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1926 constructor->int_field_put(modifiers_offset, value); | |
| 1927 } | |
| 1928 | |
| 1929 bool java_lang_reflect_Constructor::has_signature_field() { | |
| 1930 return (signature_offset >= 0); | |
| 1931 } | |
| 1932 | |
| 1933 oop java_lang_reflect_Constructor::signature(oop constructor) { | |
| 1934 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1935 assert(has_signature_field(), "signature field must be present"); | |
| 1936 return constructor->obj_field(signature_offset); | |
| 1937 } | |
| 1938 | |
| 1939 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) { | |
| 1940 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1941 assert(has_signature_field(), "signature field must be present"); | |
| 1942 constructor->obj_field_put(signature_offset, value); | |
| 1943 } | |
| 1944 | |
| 1945 bool java_lang_reflect_Constructor::has_annotations_field() { | |
| 1946 return (annotations_offset >= 0); | |
| 1947 } | |
| 1948 | |
| 1949 oop java_lang_reflect_Constructor::annotations(oop constructor) { | |
| 1950 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1951 assert(has_annotations_field(), "annotations field must be present"); | |
| 1952 return constructor->obj_field(annotations_offset); | |
| 1953 } | |
| 1954 | |
| 1955 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) { | |
| 1956 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1957 assert(has_annotations_field(), "annotations field must be present"); | |
| 1958 constructor->obj_field_put(annotations_offset, value); | |
| 1959 } | |
| 1960 | |
| 1961 bool java_lang_reflect_Constructor::has_parameter_annotations_field() { | |
| 1962 return (parameter_annotations_offset >= 0); | |
| 1963 } | |
| 1964 | |
| 1965 oop java_lang_reflect_Constructor::parameter_annotations(oop method) { | |
| 1966 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1967 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1968 return method->obj_field(parameter_annotations_offset); | |
| 1969 } | |
| 1970 | |
| 1971 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) { | |
| 1972 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1973 assert(has_parameter_annotations_field(), "parameter annotations field must be present"); | |
| 1974 method->obj_field_put(parameter_annotations_offset, value); | |
| 1975 } | |
| 1976 | |
| 1977 void java_lang_reflect_Field::compute_offsets() { | |
| 1142 | 1978 klassOop k = SystemDictionary::reflect_Field_klass(); |
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1979 compute_offset(clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
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1980 compute_offset(name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); |
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1981 compute_offset(type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature()); |
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1982 compute_offset(slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature()); |
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1983 compute_offset(modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature()); |
| 0 | 1984 // The generic signature and annotations fields are only present in 1.5 |
| 1985 signature_offset = -1; | |
| 1986 annotations_offset = -1; | |
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1987 compute_optional_offset(signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature()); |
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1988 compute_optional_offset(annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature()); |
| 0 | 1989 } |
| 1990 | |
| 1991 Handle java_lang_reflect_Field::create(TRAPS) { | |
| 1992 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
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1993 Symbol* name = vmSymbols::java_lang_reflect_Field(); |
| 0 | 1994 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH); |
| 1995 instanceKlassHandle klass (THREAD, k); | |
| 1996 // Ensure it is initialized | |
| 1997 klass->initialize(CHECK_NH); | |
| 1998 return klass->allocate_instance_handle(CHECK_NH); | |
| 1999 } | |
| 2000 | |
| 2001 oop java_lang_reflect_Field::clazz(oop reflect) { | |
| 2002 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2003 return reflect->obj_field(clazz_offset); | |
| 2004 } | |
| 2005 | |
| 2006 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) { | |
| 2007 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2008 reflect->obj_field_put(clazz_offset, value); | |
| 2009 } | |
| 2010 | |
| 2011 oop java_lang_reflect_Field::name(oop field) { | |
| 2012 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2013 return field->obj_field(name_offset); | |
| 2014 } | |
| 2015 | |
| 2016 void java_lang_reflect_Field::set_name(oop field, oop value) { | |
| 2017 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2018 field->obj_field_put(name_offset, value); | |
| 2019 } | |
| 2020 | |
| 2021 oop java_lang_reflect_Field::type(oop field) { | |
| 2022 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2023 return field->obj_field(type_offset); | |
| 2024 } | |
| 2025 | |
| 2026 void java_lang_reflect_Field::set_type(oop field, oop value) { | |
| 2027 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2028 field->obj_field_put(type_offset, value); | |
| 2029 } | |
| 2030 | |
| 2031 int java_lang_reflect_Field::slot(oop reflect) { | |
| 2032 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2033 return reflect->int_field(slot_offset); | |
| 2034 } | |
| 2035 | |
| 2036 void java_lang_reflect_Field::set_slot(oop reflect, int value) { | |
| 2037 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2038 reflect->int_field_put(slot_offset, value); | |
| 2039 } | |
| 2040 | |
| 2041 int java_lang_reflect_Field::modifiers(oop field) { | |
| 2042 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2043 return field->int_field(modifiers_offset); | |
| 2044 } | |
| 2045 | |
| 2046 void java_lang_reflect_Field::set_modifiers(oop field, int value) { | |
| 2047 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2048 field->int_field_put(modifiers_offset, value); | |
| 2049 } | |
| 2050 | |
| 2051 bool java_lang_reflect_Field::has_signature_field() { | |
| 2052 return (signature_offset >= 0); | |
| 2053 } | |
| 2054 | |
| 2055 oop java_lang_reflect_Field::signature(oop field) { | |
| 2056 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2057 assert(has_signature_field(), "signature field must be present"); | |
| 2058 return field->obj_field(signature_offset); | |
| 2059 } | |
| 2060 | |
| 2061 void java_lang_reflect_Field::set_signature(oop field, oop value) { | |
| 2062 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2063 assert(has_signature_field(), "signature field must be present"); | |
| 2064 field->obj_field_put(signature_offset, value); | |
| 2065 } | |
| 2066 | |
| 2067 bool java_lang_reflect_Field::has_annotations_field() { | |
| 2068 return (annotations_offset >= 0); | |
| 2069 } | |
| 2070 | |
| 2071 oop java_lang_reflect_Field::annotations(oop field) { | |
| 2072 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2073 assert(has_annotations_field(), "annotations field must be present"); | |
| 2074 return field->obj_field(annotations_offset); | |
| 2075 } | |
| 2076 | |
| 2077 void java_lang_reflect_Field::set_annotations(oop field, oop value) { | |
| 2078 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2079 assert(has_annotations_field(), "annotations field must be present"); | |
| 2080 field->obj_field_put(annotations_offset, value); | |
| 2081 } | |
| 2082 | |
| 2083 | |
| 2084 void sun_reflect_ConstantPool::compute_offsets() { | |
| 1142 | 2085 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2086 // This null test can be removed post beta |
| 2087 if (k != NULL) { | |
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2088 compute_offset(_cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature()); |
| 0 | 2089 } |
| 2090 } | |
| 2091 | |
| 2092 | |
| 2093 Handle sun_reflect_ConstantPool::create(TRAPS) { | |
| 2094 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 1142 | 2095 klassOop k = SystemDictionary::reflect_ConstantPool_klass(); |
| 0 | 2096 instanceKlassHandle klass (THREAD, k); |
| 2097 // Ensure it is initialized | |
| 2098 klass->initialize(CHECK_NH); | |
| 2099 return klass->allocate_instance_handle(CHECK_NH); | |
| 2100 } | |
| 2101 | |
| 2102 | |
| 2103 oop sun_reflect_ConstantPool::cp_oop(oop reflect) { | |
| 2104 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2105 return reflect->obj_field(_cp_oop_offset); | |
| 2106 } | |
| 2107 | |
| 2108 | |
| 2109 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) { | |
| 2110 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem"); | |
| 2111 reflect->obj_field_put(_cp_oop_offset, value); | |
| 2112 } | |
| 2113 | |
| 2114 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() { | |
| 1142 | 2115 klassOop k = SystemDictionary::reflect_UnsafeStaticFieldAccessorImpl_klass(); |
| 0 | 2116 // This null test can be removed post beta |
| 2117 if (k != NULL) { | |
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2118 compute_offset(_base_offset, k, |
| 0 | 2119 vmSymbols::base_name(), vmSymbols::object_signature()); |
| 2120 } | |
| 2121 } | |
| 2122 | |
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2123 oop java_lang_boxing_object::initialize_and_allocate(BasicType type, TRAPS) { |
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2124 klassOop k = SystemDictionary::box_klass(type); |
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2125 if (k == NULL) return NULL; |
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2126 instanceKlassHandle h (THREAD, k); |
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|
2127 if (!h->is_initialized()) h->initialize(CHECK_0); |
|
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|
2128 return h->allocate_instance(THREAD); |
| 0 | 2129 } |
| 2130 | |
| 2131 | |
| 2132 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) { | |
|
132
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2133 oop box = initialize_and_allocate(type, CHECK_0); |
|
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|
2134 if (box == NULL) return NULL; |
| 0 | 2135 switch (type) { |
| 2136 case T_BOOLEAN: | |
| 2137 box->bool_field_put(value_offset, value->z); | |
| 2138 break; | |
| 2139 case T_CHAR: | |
| 2140 box->char_field_put(value_offset, value->c); | |
| 2141 break; | |
| 2142 case T_FLOAT: | |
| 2143 box->float_field_put(value_offset, value->f); | |
| 2144 break; | |
| 2145 case T_DOUBLE: | |
|
165
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|
2146 box->double_field_put(long_value_offset, value->d); |
| 0 | 2147 break; |
| 2148 case T_BYTE: | |
| 2149 box->byte_field_put(value_offset, value->b); | |
| 2150 break; | |
| 2151 case T_SHORT: | |
| 2152 box->short_field_put(value_offset, value->s); | |
| 2153 break; | |
| 2154 case T_INT: | |
| 2155 box->int_field_put(value_offset, value->i); | |
| 2156 break; | |
| 2157 case T_LONG: | |
|
165
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|
2158 box->long_field_put(long_value_offset, value->j); |
| 0 | 2159 break; |
| 2160 default: | |
| 2161 return NULL; | |
| 2162 } | |
| 2163 return box; | |
| 2164 } | |
| 2165 | |
| 2166 | |
|
132
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|
2167 BasicType java_lang_boxing_object::basic_type(oop box) { |
|
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|
2168 if (box == NULL) return T_ILLEGAL; |
|
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|
2169 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2170 if (type == T_OBJECT) // 'unknown' value returned by SD::bkt |
|
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|
2171 return T_ILLEGAL; |
|
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|
2172 return type; |
|
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|
2173 } |
|
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|
2174 |
|
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|
2175 |
| 0 | 2176 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) { |
|
132
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|
2177 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2178 switch (type) { |
|
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|
2179 case T_BOOLEAN: |
| 0 | 2180 value->z = box->bool_field(value_offset); |
|
132
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|
2181 break; |
|
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|
2182 case T_CHAR: |
| 0 | 2183 value->c = box->char_field(value_offset); |
|
132
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|
2184 break; |
|
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|
2185 case T_FLOAT: |
| 0 | 2186 value->f = box->float_field(value_offset); |
|
132
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|
2187 break; |
|
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|
2188 case T_DOUBLE: |
|
165
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|
2189 value->d = box->double_field(long_value_offset); |
|
132
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|
2190 break; |
|
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|
2191 case T_BYTE: |
| 0 | 2192 value->b = box->byte_field(value_offset); |
|
132
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|
2193 break; |
|
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|
2194 case T_SHORT: |
| 0 | 2195 value->s = box->short_field(value_offset); |
|
132
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|
2196 break; |
|
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|
2197 case T_INT: |
| 0 | 2198 value->i = box->int_field(value_offset); |
|
132
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|
2199 break; |
|
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|
2200 case T_LONG: |
|
165
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|
2201 value->j = box->long_field(long_value_offset); |
|
132
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|
2202 break; |
|
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|
2203 default: |
|
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|
2204 return T_ILLEGAL; |
|
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|
2205 } // end switch |
|
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|
2206 return type; |
| 0 | 2207 } |
| 2208 | |
| 2209 | |
| 2210 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) { | |
|
132
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|
2211 BasicType type = SystemDictionary::box_klass_type(box->klass()); |
|
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|
2212 switch (type) { |
|
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|
2213 case T_BOOLEAN: |
| 0 | 2214 box->bool_field_put(value_offset, value->z); |
|
132
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|
2215 break; |
|
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|
2216 case T_CHAR: |
| 0 | 2217 box->char_field_put(value_offset, value->c); |
|
132
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|
2218 break; |
|
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|
2219 case T_FLOAT: |
| 0 | 2220 box->float_field_put(value_offset, value->f); |
|
132
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|
2221 break; |
|
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113
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|
2222 case T_DOUBLE: |
|
165
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|
2223 box->double_field_put(long_value_offset, value->d); |
|
132
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|
2224 break; |
|
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|
2225 case T_BYTE: |
| 0 | 2226 box->byte_field_put(value_offset, value->b); |
|
132
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|
2227 break; |
|
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113
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|
2228 case T_SHORT: |
| 0 | 2229 box->short_field_put(value_offset, value->s); |
|
132
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|
2230 break; |
|
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|
2231 case T_INT: |
| 0 | 2232 box->int_field_put(value_offset, value->i); |
|
132
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|
2233 break; |
|
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113
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|
2234 case T_LONG: |
|
165
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|
2235 box->long_field_put(long_value_offset, value->j); |
|
132
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113
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|
2236 break; |
|
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jrose
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113
diff
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|
2237 default: |
|
60b728ec77c1
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jrose
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113
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|
2238 return T_ILLEGAL; |
|
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diff
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|
2239 } // end switch |
|
60b728ec77c1
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113
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|
2240 return type; |
| 0 | 2241 } |
| 2242 | |
| 2243 | |
|
665
c89f86385056
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parents:
579
diff
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|
2244 void java_lang_boxing_object::print(BasicType type, jvalue* value, outputStream* st) { |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
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579
diff
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|
2245 switch (type) { |
|
c89f86385056
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579
diff
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|
2246 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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|
2247 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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|
2248 case T_BYTE: st->print("%d", value->b); break; |
|
c89f86385056
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jrose
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579
diff
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|
2249 case T_SHORT: st->print("%d", value->s); break; |
|
c89f86385056
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jrose
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579
diff
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|
2250 case T_INT: st->print("%d", value->i); break; |
|
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jrose
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579
diff
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|
2251 case T_LONG: st->print(INT64_FORMAT, value->j); break; |
|
c89f86385056
6814659: separable cleanups and subroutines for 6655638
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579
diff
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|
2252 case T_FLOAT: st->print("%f", value->f); break; |
|
c89f86385056
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jrose
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579
diff
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|
2253 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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|
2254 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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|
2255 } |
|
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579
diff
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|
2256 } |
|
c89f86385056
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579
diff
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|
2257 |
|
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|
2258 |
| 0 | 2259 // Support for java_lang_ref_Reference |
|
113
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|
2260 oop java_lang_ref_Reference::pending_list_lock() { |
| 1142 | 2261 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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|
2262 address addr = ik->static_field_addr(static_lock_offset); |
|
113
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|
2263 if (UseCompressedOops) { |
|
ba764ed4b6f2
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|
2264 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
ba764ed4b6f2
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|
2265 } else { |
|
ba764ed4b6f2
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|
2266 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
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|
2267 } |
| 0 | 2268 } |
| 2269 | |
|
113
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|
2270 HeapWord *java_lang_ref_Reference::pending_list_addr() { |
| 1142 | 2271 instanceKlass* ik = instanceKlass::cast(SystemDictionary::Reference_klass()); |
|
2376
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|
2272 address addr = ik->static_field_addr(static_pending_offset); |
|
113
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|
2273 // XXX This might not be HeapWord aligned, almost rather be char *. |
|
ba764ed4b6f2
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|
2274 return (HeapWord*)addr; |
| 0 | 2275 } |
| 2276 | |
|
113
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|
2277 oop java_lang_ref_Reference::pending_list() { |
|
ba764ed4b6f2
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98
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|
2278 char *addr = (char *)pending_list_addr(); |
|
ba764ed4b6f2
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98
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|
2279 if (UseCompressedOops) { |
|
ba764ed4b6f2
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98
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|
2280 return oopDesc::load_decode_heap_oop((narrowOop *)addr); |
|
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|
2281 } else { |
|
ba764ed4b6f2
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98
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|
2282 return oopDesc::load_decode_heap_oop((oop*)addr); |
|
ba764ed4b6f2
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|
2283 } |
| 0 | 2284 } |
| 2285 | |
| 2286 | |
| 2287 // Support for java_lang_ref_SoftReference | |
| 2288 | |
| 2289 jlong java_lang_ref_SoftReference::timestamp(oop ref) { | |
| 2290 return ref->long_field(timestamp_offset); | |
| 2291 } | |
| 2292 | |
| 2293 jlong java_lang_ref_SoftReference::clock() { | |
| 1142 | 2294 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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parents:
2357
diff
changeset
|
2295 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2357
diff
changeset
|
2296 return *offset; |
| 0 | 2297 } |
| 2298 | |
| 2299 void java_lang_ref_SoftReference::set_clock(jlong value) { | |
| 1142 | 2300 instanceKlass* ik = instanceKlass::cast(SystemDictionary::SoftReference_klass()); |
|
2376
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parents:
2357
diff
changeset
|
2301 jlong* offset = (jlong*)ik->static_field_addr(static_clock_offset); |
|
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parents:
2357
diff
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|
2302 *offset = value; |
| 0 | 2303 } |
| 2304 | |
| 2305 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2356
diff
changeset
|
2306 // 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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|
2307 |
|
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::_type_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::_vmtarget_offset; |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
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2310 int java_lang_invoke_MethodHandle::_vmentry_offset; |
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2311 int java_lang_invoke_MethodHandle::_vmslots_offset; |
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2312 |
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2313 int java_lang_invoke_MemberName::_clazz_offset; |
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2314 int java_lang_invoke_MemberName::_name_offset; |
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2315 int java_lang_invoke_MemberName::_type_offset; |
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2316 int java_lang_invoke_MemberName::_flags_offset; |
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2317 int java_lang_invoke_MemberName::_vmtarget_offset; |
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2318 int java_lang_invoke_MemberName::_vmindex_offset; |
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2319 |
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2320 int java_lang_invoke_DirectMethodHandle::_vmindex_offset; |
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2321 |
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2322 int java_lang_invoke_BoundMethodHandle::_argument_offset; |
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2323 int java_lang_invoke_BoundMethodHandle::_vmargslot_offset; |
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2324 |
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2325 int java_lang_invoke_AdapterMethodHandle::_conversion_offset; |
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2326 |
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2327 void java_lang_invoke_MethodHandle::compute_offsets() { |
| 710 | 2328 klassOop k = SystemDictionary::MethodHandle_klass(); |
|
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2329 if (k != NULL && EnableInvokeDynamic) { |
|
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2330 bool allow_super = false; |
|
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2331 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::java_lang_invoke_MethodType_signature(), allow_super); |
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2332 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature(), allow_super); |
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2333 compute_offset(_vmentry_offset, k, vmSymbols::vmentry_name(), vmSymbols::machine_word_signature(), allow_super); |
| 710 | 2334 |
| 2335 // Note: MH.vmslots (if it is present) is a hoisted copy of MH.type.form.vmslots. | |
| 2336 // It is optional pending experiments to keep or toss. | |
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2337 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), allow_super); |
| 710 | 2338 } |
| 2339 } | |
| 2340 | |
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2341 void java_lang_invoke_MemberName::compute_offsets() { |
| 710 | 2342 klassOop k = SystemDictionary::MemberName_klass(); |
|
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2343 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2344 compute_offset(_clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature()); |
| 2345 compute_offset(_name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature()); | |
| 2346 compute_offset(_type_offset, k, vmSymbols::type_name(), vmSymbols::object_signature()); | |
| 2347 compute_offset(_flags_offset, k, vmSymbols::flags_name(), vmSymbols::int_signature()); | |
| 2348 compute_offset(_vmtarget_offset, k, vmSymbols::vmtarget_name(), vmSymbols::object_signature()); | |
| 2349 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature()); | |
| 2350 } | |
| 2351 } | |
| 2352 | |
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2353 void java_lang_invoke_DirectMethodHandle::compute_offsets() { |
| 710 | 2354 klassOop k = SystemDictionary::DirectMethodHandle_klass(); |
|
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2355 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2356 compute_offset(_vmindex_offset, k, vmSymbols::vmindex_name(), vmSymbols::int_signature(), true); |
| 2357 } | |
| 2358 } | |
| 2359 | |
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2360 void java_lang_invoke_BoundMethodHandle::compute_offsets() { |
| 710 | 2361 klassOop k = SystemDictionary::BoundMethodHandle_klass(); |
|
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2362 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2363 compute_offset(_vmargslot_offset, k, vmSymbols::vmargslot_name(), vmSymbols::int_signature(), true); |
| 2364 compute_offset(_argument_offset, k, vmSymbols::argument_name(), vmSymbols::object_signature(), true); | |
| 2365 } | |
| 2366 } | |
| 2367 | |
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2368 void java_lang_invoke_AdapterMethodHandle::compute_offsets() { |
| 710 | 2369 klassOop k = SystemDictionary::AdapterMethodHandle_klass(); |
|
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2370 if (k != NULL && EnableInvokeDynamic) { |
| 710 | 2371 compute_offset(_conversion_offset, k, vmSymbols::conversion_name(), vmSymbols::int_signature(), true); |
| 2372 } | |
| 2373 } | |
| 2374 | |
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2375 oop java_lang_invoke_MethodHandle::type(oop mh) { |
| 710 | 2376 return mh->obj_field(_type_offset); |
| 2377 } | |
| 2378 | |
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2379 void java_lang_invoke_MethodHandle::set_type(oop mh, oop mtype) { |
| 710 | 2380 mh->obj_field_put(_type_offset, mtype); |
| 2381 } | |
| 2382 | |
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2383 int java_lang_invoke_MethodHandle::vmslots(oop mh) { |
| 710 | 2384 int vmslots_offset = _vmslots_offset; |
| 2385 if (vmslots_offset != 0) { | |
| 2386 #ifdef ASSERT | |
| 2387 int x = mh->int_field(vmslots_offset); | |
| 2388 int y = compute_vmslots(mh); | |
| 2389 assert(x == y, "correct hoisted value"); | |
| 2390 #endif | |
| 2391 return mh->int_field(vmslots_offset); | |
| 2392 } else { | |
| 2393 return compute_vmslots(mh); | |
| 2394 } | |
| 2395 } | |
| 2396 | |
| 2397 // if MH.vmslots exists, hoist into it the value of type.form.vmslots | |
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2398 void java_lang_invoke_MethodHandle::init_vmslots(oop mh) { |
| 710 | 2399 int vmslots_offset = _vmslots_offset; |
| 2400 if (vmslots_offset != 0) { | |
| 2401 mh->int_field_put(vmslots_offset, compute_vmslots(mh)); | |
| 2402 } | |
| 2403 } | |
| 2404 | |
| 2405 // fetch type.form.vmslots, which is the number of JVM stack slots | |
| 2406 // required to carry the arguments of this MH | |
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2407 int java_lang_invoke_MethodHandle::compute_vmslots(oop mh) { |
| 710 | 2408 oop mtype = type(mh); |
| 2409 if (mtype == NULL) return 0; // Java code would get NPE | |
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2410 oop form = java_lang_invoke_MethodType::form(mtype); |
| 710 | 2411 if (form == NULL) return 0; // Java code would get NPE |
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2412 return java_lang_invoke_MethodTypeForm::vmslots(form); |
| 710 | 2413 } |
| 2414 | |
| 2415 // fetch the low-level entry point for this mh | |
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2416 MethodHandleEntry* java_lang_invoke_MethodHandle::vmentry(oop mh) { |
| 710 | 2417 return (MethodHandleEntry*) mh->address_field(_vmentry_offset); |
| 2418 } | |
| 2419 | |
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2420 void java_lang_invoke_MethodHandle::set_vmentry(oop mh, MethodHandleEntry* me) { |
| 710 | 2421 assert(_vmentry_offset != 0, "must be present"); |
| 2422 | |
| 2423 // This is always the final step that initializes a valid method handle: | |
| 2424 mh->release_address_field_put(_vmentry_offset, (address) me); | |
| 2425 | |
| 2426 // There should be enough memory barriers on exit from native methods | |
| 2427 // to ensure that the MH is fully initialized to all threads before | |
| 2428 // Java code can publish it in global data structures. | |
| 2429 // But just in case, we use release_address_field_put. | |
| 2430 } | |
| 2431 | |
| 2432 /// MemberName accessors | |
| 2433 | |
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2434 oop java_lang_invoke_MemberName::clazz(oop mname) { |
| 710 | 2435 assert(is_instance(mname), "wrong type"); |
| 2436 return mname->obj_field(_clazz_offset); | |
| 2437 } | |
| 2438 | |
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2439 void java_lang_invoke_MemberName::set_clazz(oop mname, oop clazz) { |
| 710 | 2440 assert(is_instance(mname), "wrong type"); |
| 2441 mname->obj_field_put(_clazz_offset, clazz); | |
| 2442 } | |
| 2443 | |
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2444 oop java_lang_invoke_MemberName::name(oop mname) { |
| 710 | 2445 assert(is_instance(mname), "wrong type"); |
| 2446 return mname->obj_field(_name_offset); | |
| 2447 } | |
| 2448 | |
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2449 void java_lang_invoke_MemberName::set_name(oop mname, oop name) { |
| 710 | 2450 assert(is_instance(mname), "wrong type"); |
| 2451 mname->obj_field_put(_name_offset, name); | |
| 2452 } | |
| 2453 | |
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2454 oop java_lang_invoke_MemberName::type(oop mname) { |
| 710 | 2455 assert(is_instance(mname), "wrong type"); |
| 2456 return mname->obj_field(_type_offset); | |
| 2457 } | |
| 2458 | |
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2459 void java_lang_invoke_MemberName::set_type(oop mname, oop type) { |
| 710 | 2460 assert(is_instance(mname), "wrong type"); |
| 2461 mname->obj_field_put(_type_offset, type); | |
| 2462 } | |
| 2463 | |
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2464 int java_lang_invoke_MemberName::flags(oop mname) { |
| 710 | 2465 assert(is_instance(mname), "wrong type"); |
| 2466 return mname->int_field(_flags_offset); | |
| 2467 } | |
| 2468 | |
|
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2469 void java_lang_invoke_MemberName::set_flags(oop mname, int flags) { |
| 710 | 2470 assert(is_instance(mname), "wrong type"); |
| 2471 mname->int_field_put(_flags_offset, flags); | |
| 2472 } | |
| 2473 | |
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2474 oop java_lang_invoke_MemberName::vmtarget(oop mname) { |
| 710 | 2475 assert(is_instance(mname), "wrong type"); |
| 2476 return mname->obj_field(_vmtarget_offset); | |
| 2477 } | |
| 2478 | |
|
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2479 void java_lang_invoke_MemberName::set_vmtarget(oop mname, oop ref) { |
| 710 | 2480 assert(is_instance(mname), "wrong type"); |
| 2481 mname->obj_field_put(_vmtarget_offset, ref); | |
| 2482 } | |
| 2483 | |
|
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2484 int java_lang_invoke_MemberName::vmindex(oop mname) { |
| 710 | 2485 assert(is_instance(mname), "wrong type"); |
| 2486 return mname->int_field(_vmindex_offset); | |
| 2487 } | |
| 2488 | |
|
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2489 void java_lang_invoke_MemberName::set_vmindex(oop mname, int index) { |
| 710 | 2490 assert(is_instance(mname), "wrong type"); |
| 2491 mname->int_field_put(_vmindex_offset, index); | |
| 2492 } | |
| 2493 | |
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2494 oop java_lang_invoke_MethodHandle::vmtarget(oop mh) { |
| 710 | 2495 assert(is_instance(mh), "MH only"); |
| 2496 return mh->obj_field(_vmtarget_offset); | |
| 2497 } | |
| 2498 | |
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2499 void java_lang_invoke_MethodHandle::set_vmtarget(oop mh, oop ref) { |
| 710 | 2500 assert(is_instance(mh), "MH only"); |
| 2501 mh->obj_field_put(_vmtarget_offset, ref); | |
| 2502 } | |
| 2503 | |
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2504 int java_lang_invoke_DirectMethodHandle::vmindex(oop mh) { |
| 710 | 2505 assert(is_instance(mh), "DMH only"); |
| 2506 return mh->int_field(_vmindex_offset); | |
| 2507 } | |
| 2508 | |
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2509 void java_lang_invoke_DirectMethodHandle::set_vmindex(oop mh, int index) { |
| 710 | 2510 assert(is_instance(mh), "DMH only"); |
| 2511 mh->int_field_put(_vmindex_offset, index); | |
| 2512 } | |
| 2513 | |
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2514 int java_lang_invoke_BoundMethodHandle::vmargslot(oop mh) { |
| 710 | 2515 assert(is_instance(mh), "BMH only"); |
| 2516 return mh->int_field(_vmargslot_offset); | |
| 2517 } | |
| 2518 | |
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2519 oop java_lang_invoke_BoundMethodHandle::argument(oop mh) { |
| 710 | 2520 assert(is_instance(mh), "BMH only"); |
| 2521 return mh->obj_field(_argument_offset); | |
| 2522 } | |
| 2523 | |
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2524 int java_lang_invoke_AdapterMethodHandle::conversion(oop mh) { |
| 710 | 2525 assert(is_instance(mh), "AMH only"); |
| 2526 return mh->int_field(_conversion_offset); | |
| 2527 } | |
| 2528 | |
|
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2529 void java_lang_invoke_AdapterMethodHandle::set_conversion(oop mh, int conv) { |
| 710 | 2530 assert(is_instance(mh), "AMH only"); |
| 2531 mh->int_field_put(_conversion_offset, conv); | |
| 2532 } | |
| 2533 | |
| 2534 | |
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2535 // Support for java_lang_invoke_MethodType |
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2536 |
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2537 int java_lang_invoke_MethodType::_rtype_offset; |
|
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2538 int java_lang_invoke_MethodType::_ptypes_offset; |
|
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2539 int java_lang_invoke_MethodType::_form_offset; |
|
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2540 |
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2541 void java_lang_invoke_MethodType::compute_offsets() { |
| 710 | 2542 klassOop k = SystemDictionary::MethodType_klass(); |
| 2543 if (k != NULL) { | |
| 2544 compute_offset(_rtype_offset, k, vmSymbols::rtype_name(), vmSymbols::class_signature()); | |
| 2545 compute_offset(_ptypes_offset, k, vmSymbols::ptypes_name(), vmSymbols::class_array_signature()); | |
|
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|
2546 compute_offset(_form_offset, k, vmSymbols::form_name(), vmSymbols::java_lang_invoke_MethodTypeForm_signature()); |
| 710 | 2547 } |
| 2548 } | |
| 2549 | |
|
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|
2550 void java_lang_invoke_MethodType::print_signature(oop mt, outputStream* st) { |
| 710 | 2551 st->print("("); |
| 2552 objArrayOop pts = ptypes(mt); | |
| 2553 for (int i = 0, limit = pts->length(); i < limit; i++) { | |
| 2554 java_lang_Class::print_signature(pts->obj_at(i), st); | |
| 2555 } | |
| 2556 st->print(")"); | |
| 2557 java_lang_Class::print_signature(rtype(mt), st); | |
| 2558 } | |
| 2559 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2560 Symbol* java_lang_invoke_MethodType::as_signature(oop mt, bool intern_if_not_found, TRAPS) { |
| 710 | 2561 ResourceMark rm; |
| 2562 stringStream buffer(128); | |
| 2563 print_signature(mt, &buffer); | |
| 2564 const char* sigstr = buffer.base(); | |
| 2565 int siglen = (int) buffer.size(); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2566 Symbol *name; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2567 if (!intern_if_not_found) { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2568 name = SymbolTable::probe(sigstr, siglen); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2569 } else { |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2570 name = SymbolTable::new_symbol(sigstr, siglen, THREAD); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2571 } |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1989
diff
changeset
|
2572 return name; |
| 710 | 2573 } |
| 2574 | |
|
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2575 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
|
2576 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
|
2577 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2578 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
|
2579 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2580 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
|
2581 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
|
2582 return false; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2583 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2584 return true; |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2585 } |
|
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3363
diff
changeset
|
2586 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2587 oop java_lang_invoke_MethodType::rtype(oop mt) { |
| 710 | 2588 assert(is_instance(mt), "must be a MethodType"); |
| 2589 return mt->obj_field(_rtype_offset); | |
| 2590 } | |
| 2591 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2592 objArrayOop java_lang_invoke_MethodType::ptypes(oop mt) { |
| 710 | 2593 assert(is_instance(mt), "must be a MethodType"); |
| 2594 return (objArrayOop) mt->obj_field(_ptypes_offset); | |
| 2595 } | |
| 2596 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2597 oop java_lang_invoke_MethodType::form(oop mt) { |
| 710 | 2598 assert(is_instance(mt), "must be a MethodType"); |
| 2599 return mt->obj_field(_form_offset); | |
| 2600 } | |
| 2601 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2602 oop java_lang_invoke_MethodType::ptype(oop mt, int idx) { |
| 710 | 2603 return ptypes(mt)->obj_at(idx); |
| 2604 } | |
| 2605 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2606 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
|
2607 return ptypes(mt)->length(); |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2608 } |
|
aa62b9388fce
6894206: JVM needs a way to traverse method handle structures
twisti
parents:
1096
diff
changeset
|
2609 |
| 710 | 2610 |
| 2611 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2612 // Support for java_lang_invoke_MethodTypeForm |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2613 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2614 int java_lang_invoke_MethodTypeForm::_vmslots_offset; |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2615 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
|
2616 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
|
2617 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
|
2618 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2619 void java_lang_invoke_MethodTypeForm::compute_offsets() { |
| 710 | 2620 klassOop k = SystemDictionary::MethodTypeForm_klass(); |
| 2621 if (k != NULL) { | |
| 2622 compute_optional_offset(_vmslots_offset, k, vmSymbols::vmslots_name(), vmSymbols::int_signature(), true); | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2623 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
|
2624 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
|
2625 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
|
2626 if (_genericInvoker_offset == 0) _genericInvoker_offset = -1; // set to explicit "empty" value |
| 710 | 2627 } |
| 2628 } | |
| 2629 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2630 int java_lang_invoke_MethodTypeForm::vmslots(oop mtform) { |
| 710 | 2631 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2632 assert(_vmslots_offset > 0, ""); |
| 710 | 2633 return mtform->int_field(_vmslots_offset); |
| 2634 } | |
| 2635 | |
|
3363
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2636 oop java_lang_invoke_MethodTypeForm::vmlayout(oop mtform) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2637 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2638 assert(_vmlayout_offset > 0, ""); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2639 return mtform->obj_field(_vmlayout_offset); |
|
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 |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2642 oop java_lang_invoke_MethodTypeForm::init_vmlayout(oop mtform, oop cookie) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2643 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2644 oop previous = vmlayout(mtform); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2645 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2646 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2647 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2648 HeapWord* cookie_addr = (HeapWord*) mtform->obj_field_addr<oop>(_vmlayout_offset); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2649 OrderAccess::storestore(); // make sure our copy is fully committed |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2650 previous = oopDesc::atomic_compare_exchange_oop(cookie, cookie_addr, previous); |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2651 if (previous != NULL) { |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2652 return previous; // someone else beat us to it |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2653 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2654 return cookie; |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2655 } |
|
167b70ff3abc
6939861: JVM should handle more conversion operations
never
parents:
3272
diff
changeset
|
2656 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2657 oop java_lang_invoke_MethodTypeForm::erasedType(oop mtform) { |
| 710 | 2658 assert(mtform->klass() == SystemDictionary::MethodTypeForm_klass(), "MTForm only"); |
| 2659 return mtform->obj_field(_erasedType_offset); | |
| 2660 } | |
| 2661 | |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2662 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
|
2663 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
|
2664 return mtform->obj_field(_genericInvoker_offset); |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2665 } |
|
d257356e35f0
6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents:
1552
diff
changeset
|
2666 |
| 710 | 2667 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2668 // Support for java_lang_invoke_CallSite |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2669 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2670 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
|
2671 |
|
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2672 void java_lang_invoke_CallSite::compute_offsets() { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2673 if (!EnableInvokeDynamic) return; |
|
1059
389049f3f393
6858164: invokedynamic code needs some cleanup (post-6655638)
jrose
parents:
949
diff
changeset
|
2674 klassOop k = SystemDictionary::CallSite_klass(); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2675 if (k != NULL) { |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2676 compute_offset(_target_offset, k, vmSymbols::target_name(), vmSymbols::java_lang_invoke_MethodHandle_signature()); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2677 } |
|
3900
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2678 |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2679 // Disallow compilation of CallSite.setTargetNormal and CallSite.setTargetVolatile |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2680 // (For C2: keep this until we have throttling logic for uncommon traps.) |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2681 if (k != NULL) { |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2682 instanceKlass* ik = instanceKlass::cast(k); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2683 methodOop m_normal = ik->lookup_method(vmSymbols::setTargetNormal_name(), vmSymbols::setTarget_signature()); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2684 methodOop m_volatile = ik->lookup_method(vmSymbols::setTargetVolatile_name(), vmSymbols::setTarget_signature()); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2685 guarantee(m_normal && m_volatile, "must exist"); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2686 m_normal->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2687 m_volatile->set_not_compilable_quietly(); |
|
a32de5085326
7079673: JSR 292: C1 should inline bytecoded method handle adapters
twisti
parents:
3820
diff
changeset
|
2688 } |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2689 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2690 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2691 oop java_lang_invoke_CallSite::target(oop site) { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2692 return site->obj_field(_target_offset); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2693 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2694 |
|
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
2695 void java_lang_invoke_CallSite::set_target(oop site, oop target) { |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2696 site->obj_field_put(_target_offset, target); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2697 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
2698 |
| 710 | 2699 |
| 0 | 2700 // Support for java_security_AccessControlContext |
| 2701 | |
| 2702 int java_security_AccessControlContext::_context_offset = 0; | |
| 2703 int java_security_AccessControlContext::_privilegedContext_offset = 0; | |
| 2704 int java_security_AccessControlContext::_isPrivileged_offset = 0; | |
| 2705 | |
| 2706 void java_security_AccessControlContext::compute_offsets() { | |
| 2707 assert(_isPrivileged_offset == 0, "offsets should be initialized only once"); | |
| 2708 fieldDescriptor fd; | |
| 2709 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass()); | |
| 2710 | |
| 2711 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) { | |
| 2712 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2713 } | |
| 2714 _context_offset = fd.offset(); | |
| 2715 | |
| 2716 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) { | |
| 2717 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2718 } | |
| 2719 _privilegedContext_offset = fd.offset(); | |
| 2720 | |
| 2721 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) { | |
| 2722 fatal("Invalid layout of java.security.AccessControlContext"); | |
| 2723 } | |
| 2724 _isPrivileged_offset = fd.offset(); | |
| 2725 } | |
| 2726 | |
| 2727 | |
| 2728 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) { | |
| 2729 assert(_isPrivileged_offset != 0, "offsets should have been initialized"); | |
| 2730 // Ensure klass is initialized | |
| 2731 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0); | |
| 2732 // Allocate result | |
| 2733 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0); | |
| 2734 // Fill in values | |
| 2735 result->obj_field_put(_context_offset, context()); | |
| 2736 result->obj_field_put(_privilegedContext_offset, privileged_context()); | |
| 2737 result->bool_field_put(_isPrivileged_offset, isPrivileged); | |
| 2738 return result; | |
| 2739 } | |
| 2740 | |
| 2741 | |
| 2742 // Support for java_lang_ClassLoader | |
| 2743 | |
| 2744 oop java_lang_ClassLoader::parent(oop loader) { | |
| 2745 assert(loader->is_oop(), "loader must be oop"); | |
| 2746 return loader->obj_field(parent_offset); | |
| 2747 } | |
| 2748 | |
| 2749 | |
| 2750 bool java_lang_ClassLoader::is_trusted_loader(oop loader) { | |
| 2751 // Fix for 4474172; see evaluation for more details | |
| 2752 loader = non_reflection_class_loader(loader); | |
| 2753 | |
| 2754 oop cl = SystemDictionary::java_system_loader(); | |
| 2755 while(cl != NULL) { | |
| 2756 if (cl == loader) return true; | |
| 2757 cl = parent(cl); | |
| 2758 } | |
| 2759 return false; | |
| 2760 } | |
| 2761 | |
| 2762 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) { | |
| 2763 if (loader != NULL) { | |
| 2764 // See whether this is one of the class loaders associated with | |
| 2765 // the generated bytecodes for reflection, and if so, "magically" | |
| 2766 // delegate to its parent to prevent class loading from occurring | |
| 2767 // in places where applications using reflection didn't expect it. | |
| 1142 | 2768 klassOop delegating_cl_class = SystemDictionary::reflect_DelegatingClassLoader_klass(); |
| 0 | 2769 // This might be null in non-1.4 JDKs |
| 2770 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) { | |
| 2771 return parent(loader); | |
| 2772 } | |
| 2773 } | |
| 2774 return loader; | |
| 2775 } | |
| 2776 | |
| 2777 | |
| 2778 // Support for java_lang_System | |
| 2779 int java_lang_System::in_offset_in_bytes() { | |
|
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2780 return (instanceMirrorKlass::offset_of_static_fields() + static_in_offset); |
| 0 | 2781 } |
| 2782 | |
| 2783 | |
| 2784 int java_lang_System::out_offset_in_bytes() { | |
|
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2785 return (instanceMirrorKlass::offset_of_static_fields() + static_out_offset); |
| 0 | 2786 } |
| 2787 | |
| 2788 | |
| 2789 int java_lang_System::err_offset_in_bytes() { | |
|
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2790 return (instanceMirrorKlass::offset_of_static_fields() + static_err_offset); |
| 0 | 2791 } |
| 2792 | |
| 2793 | |
| 2794 | |
| 2795 int java_lang_String::value_offset; | |
| 2796 int java_lang_String::offset_offset; | |
| 2797 int java_lang_String::count_offset; | |
| 2798 int java_lang_String::hash_offset; | |
| 2799 int java_lang_Class::klass_offset; | |
| 2800 int java_lang_Class::array_klass_offset; | |
| 2801 int java_lang_Class::resolved_constructor_offset; | |
| 2802 int java_lang_Class::number_of_fake_oop_fields; | |
|
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2803 int java_lang_Class::oop_size_offset; |
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2804 int java_lang_Class::static_oop_field_count_offset; |
| 0 | 2805 int java_lang_Throwable::backtrace_offset; |
| 2806 int java_lang_Throwable::detailMessage_offset; | |
| 2807 int java_lang_Throwable::cause_offset; | |
| 2808 int java_lang_Throwable::stackTrace_offset; | |
|
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2809 int java_lang_Throwable::static_unassigned_stacktrace_offset; |
| 0 | 2810 int java_lang_reflect_AccessibleObject::override_offset; |
| 2811 int java_lang_reflect_Method::clazz_offset; | |
| 2812 int java_lang_reflect_Method::name_offset; | |
| 2813 int java_lang_reflect_Method::returnType_offset; | |
| 2814 int java_lang_reflect_Method::parameterTypes_offset; | |
| 2815 int java_lang_reflect_Method::exceptionTypes_offset; | |
| 2816 int java_lang_reflect_Method::slot_offset; | |
| 2817 int java_lang_reflect_Method::modifiers_offset; | |
| 2818 int java_lang_reflect_Method::signature_offset; | |
| 2819 int java_lang_reflect_Method::annotations_offset; | |
| 2820 int java_lang_reflect_Method::parameter_annotations_offset; | |
| 2821 int java_lang_reflect_Method::annotation_default_offset; | |
| 2822 int java_lang_reflect_Constructor::clazz_offset; | |
| 2823 int java_lang_reflect_Constructor::parameterTypes_offset; | |
| 2824 int java_lang_reflect_Constructor::exceptionTypes_offset; | |
| 2825 int java_lang_reflect_Constructor::slot_offset; | |
| 2826 int java_lang_reflect_Constructor::modifiers_offset; | |
| 2827 int java_lang_reflect_Constructor::signature_offset; | |
| 2828 int java_lang_reflect_Constructor::annotations_offset; | |
| 2829 int java_lang_reflect_Constructor::parameter_annotations_offset; | |
| 2830 int java_lang_reflect_Field::clazz_offset; | |
| 2831 int java_lang_reflect_Field::name_offset; | |
| 2832 int java_lang_reflect_Field::type_offset; | |
| 2833 int java_lang_reflect_Field::slot_offset; | |
| 2834 int java_lang_reflect_Field::modifiers_offset; | |
| 2835 int java_lang_reflect_Field::signature_offset; | |
| 2836 int java_lang_reflect_Field::annotations_offset; | |
| 2837 int java_lang_boxing_object::value_offset; | |
|
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2838 int java_lang_boxing_object::long_value_offset; |
| 0 | 2839 int java_lang_ref_Reference::referent_offset; |
| 2840 int java_lang_ref_Reference::queue_offset; | |
| 2841 int java_lang_ref_Reference::next_offset; | |
| 2842 int java_lang_ref_Reference::discovered_offset; | |
| 2843 int java_lang_ref_Reference::static_lock_offset; | |
| 2844 int java_lang_ref_Reference::static_pending_offset; | |
| 2845 int java_lang_ref_Reference::number_of_fake_oop_fields; | |
| 2846 int java_lang_ref_SoftReference::timestamp_offset; | |
| 2847 int java_lang_ref_SoftReference::static_clock_offset; | |
| 2848 int java_lang_ClassLoader::parent_offset; | |
| 2849 int java_lang_System::static_in_offset; | |
| 2850 int java_lang_System::static_out_offset; | |
| 2851 int java_lang_System::static_err_offset; | |
| 2852 int java_lang_StackTraceElement::declaringClass_offset; | |
| 2853 int java_lang_StackTraceElement::methodName_offset; | |
| 2854 int java_lang_StackTraceElement::fileName_offset; | |
| 2855 int java_lang_StackTraceElement::lineNumber_offset; | |
| 2856 int java_lang_AssertionStatusDirectives::classes_offset; | |
| 2857 int java_lang_AssertionStatusDirectives::classEnabled_offset; | |
| 2858 int java_lang_AssertionStatusDirectives::packages_offset; | |
| 2859 int java_lang_AssertionStatusDirectives::packageEnabled_offset; | |
| 2860 int java_lang_AssertionStatusDirectives::deflt_offset; | |
| 2861 int java_nio_Buffer::_limit_offset; | |
| 2862 int sun_misc_AtomicLongCSImpl::_value_offset; | |
| 2863 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0; | |
| 2864 int sun_reflect_ConstantPool::_cp_oop_offset; | |
| 2865 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset; | |
| 2866 | |
| 2867 | |
| 2868 // Support for java_lang_StackTraceElement | |
| 2869 | |
| 2870 void java_lang_StackTraceElement::set_fileName(oop element, oop value) { | |
| 2871 element->obj_field_put(fileName_offset, value); | |
| 2872 } | |
| 2873 | |
| 2874 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) { | |
| 2875 element->obj_field_put(declaringClass_offset, value); | |
| 2876 } | |
| 2877 | |
| 2878 void java_lang_StackTraceElement::set_methodName(oop element, oop value) { | |
| 2879 element->obj_field_put(methodName_offset, value); | |
| 2880 } | |
| 2881 | |
| 2882 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) { | |
| 2883 element->int_field_put(lineNumber_offset, value); | |
| 2884 } | |
| 2885 | |
| 2886 | |
| 2887 // Support for java Assertions - java_lang_AssertionStatusDirectives. | |
| 2888 | |
| 2889 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) { | |
| 2890 o->obj_field_put(classes_offset, val); | |
| 2891 } | |
| 2892 | |
| 2893 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) { | |
| 2894 o->obj_field_put(classEnabled_offset, val); | |
| 2895 } | |
| 2896 | |
| 2897 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) { | |
| 2898 o->obj_field_put(packages_offset, val); | |
| 2899 } | |
| 2900 | |
| 2901 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) { | |
| 2902 o->obj_field_put(packageEnabled_offset, val); | |
| 2903 } | |
| 2904 | |
| 2905 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) { | |
| 2906 o->bool_field_put(deflt_offset, val); | |
| 2907 } | |
| 2908 | |
| 2909 | |
| 2910 // Support for intrinsification of java.nio.Buffer.checkIndex | |
| 2911 int java_nio_Buffer::limit_offset() { | |
| 2912 return _limit_offset; | |
| 2913 } | |
| 2914 | |
| 2915 | |
| 2916 void java_nio_Buffer::compute_offsets() { | |
| 2917 klassOop k = SystemDictionary::java_nio_Buffer_klass(); | |
|
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2918 assert(k != NULL, "must be loaded in 1.4+"); |
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2919 compute_offset(_limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature()); |
| 0 | 2920 } |
| 2921 | |
| 2922 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate | |
| 2923 int sun_misc_AtomicLongCSImpl::value_offset() { | |
| 2924 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this"); | |
| 2925 return _value_offset; | |
| 2926 } | |
| 2927 | |
| 2928 | |
| 2929 void sun_misc_AtomicLongCSImpl::compute_offsets() { | |
| 2930 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass(); | |
| 2931 // If this class is not present, its value field offset won't be referenced. | |
| 2932 if (k != NULL) { | |
|
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2933 compute_offset(_value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature()); |
| 0 | 2934 } |
| 2935 } | |
| 2936 | |
| 2937 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) { | |
| 2938 if (_owner_offset != 0) return; | |
| 2939 | |
| 2940 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later"); | |
| 2941 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK); | |
| 2942 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass(); | |
|
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2943 compute_offset(_owner_offset, k, |
| 0 | 2944 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature()); |
| 2945 } | |
| 2946 | |
| 2947 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) { | |
| 2948 assert(_owner_offset != 0, "Must be initialized"); | |
| 2949 return obj->obj_field(_owner_offset); | |
| 2950 } | |
| 2951 | |
| 2952 // Compute hard-coded offsets | |
| 2953 // Invoked before SystemDictionary::initialize, so pre-loaded classes | |
| 2954 // are not available to determine the offset_of_static_fields. | |
| 2955 void JavaClasses::compute_hard_coded_offsets() { | |
|
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2956 const int x = heapOopSize; |
|
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2957 const int header = instanceOopDesc::base_offset_in_bytes(); |
| 0 | 2958 |
| 2959 // Do the String Class | |
| 2960 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header; | |
| 2961 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header; | |
| 2962 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint); | |
| 2963 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint); | |
| 2964 | |
|
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2965 { |
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2966 // Do the Class Class |
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2967 int offset = header; |
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2968 java_lang_Class::oop_size_offset = header; |
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2969 offset += BytesPerInt; |
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2970 java_lang_Class::static_oop_field_count_offset = offset; |
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2971 offset = align_size_up(offset + BytesPerInt, x); |
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2972 java_lang_Class::klass_offset = offset; |
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2973 offset += x; |
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2974 java_lang_Class::array_klass_offset = offset; |
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2975 offset += x; |
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2976 java_lang_Class::resolved_constructor_offset = offset; |
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2977 } |
| 0 | 2978 |
| 2979 // This is NOT an offset | |
| 2980 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields; | |
| 2981 | |
| 2982 // Throwable Class | |
| 2983 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header; | |
| 2984 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header; | |
| 2985 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header; | |
| 2986 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header; | |
|
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2987 java_lang_Throwable::static_unassigned_stacktrace_offset = java_lang_Throwable::hc_static_unassigned_stacktrace_offset * x; |
| 0 | 2988 |
| 2989 // java_lang_boxing_object | |
|
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2990 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset + header; |
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2991 java_lang_boxing_object::long_value_offset = align_size_up((java_lang_boxing_object::hc_value_offset + header), BytesPerLong); |
| 0 | 2992 |
| 2993 // java_lang_ref_Reference: | |
| 2994 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header; | |
| 2995 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header; | |
| 2996 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header; | |
| 2997 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header; | |
| 2998 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x; | |
| 2999 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x; | |
| 3000 // Artificial fields for java_lang_ref_Reference | |
| 3001 // The first field is for the discovered field added in 1.4 | |
| 3002 java_lang_ref_Reference::number_of_fake_oop_fields = 1; | |
| 3003 | |
| 3004 // java_lang_ref_SoftReference Class | |
|
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3005 java_lang_ref_SoftReference::timestamp_offset = align_size_up((java_lang_ref_SoftReference::hc_timestamp_offset * x + header), BytesPerLong); |
| 0 | 3006 // Don't multiply static fields because they are always in wordSize units |
| 3007 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x; | |
| 3008 | |
| 3009 // java_lang_ClassLoader | |
| 3010 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header; | |
| 3011 | |
| 3012 // java_lang_System | |
| 3013 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x; | |
| 3014 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x; | |
| 3015 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x; | |
| 3016 | |
| 3017 // java_lang_StackTraceElement | |
| 3018 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header; | |
| 3019 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header; | |
| 3020 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header; | |
| 3021 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header; | |
| 3022 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header; | |
| 3023 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header; | |
| 3024 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header; | |
| 3025 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header; | |
| 3026 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header; | |
| 3027 | |
| 3028 } | |
| 3029 | |
| 3030 | |
| 3031 // Compute non-hard-coded field offsets of all the classes in this file | |
| 3032 void JavaClasses::compute_offsets() { | |
| 3033 | |
| 3034 java_lang_Class::compute_offsets(); | |
| 3035 java_lang_Thread::compute_offsets(); | |
| 3036 java_lang_ThreadGroup::compute_offsets(); | |
|
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3037 if (EnableInvokeDynamic) { |
|
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3038 java_lang_invoke_MethodHandle::compute_offsets(); |
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3039 java_lang_invoke_MemberName::compute_offsets(); |
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3040 java_lang_invoke_DirectMethodHandle::compute_offsets(); |
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3041 java_lang_invoke_BoundMethodHandle::compute_offsets(); |
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3042 java_lang_invoke_AdapterMethodHandle::compute_offsets(); |
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3043 java_lang_invoke_MethodType::compute_offsets(); |
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3044 java_lang_invoke_MethodTypeForm::compute_offsets(); |
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diff
changeset
|
3045 java_lang_invoke_CallSite::compute_offsets(); |
|
726
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6655646: dynamic languages need dynamically linked call sites
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|
3046 } |
| 0 | 3047 java_security_AccessControlContext::compute_offsets(); |
| 3048 // Initialize reflection classes. The layouts of these classes | |
| 3049 // changed with the new reflection implementation in JDK 1.4, and | |
| 3050 // since the Universe doesn't know what JDK version it is until this | |
| 3051 // point we defer computation of these offsets until now. | |
| 3052 java_lang_reflect_AccessibleObject::compute_offsets(); | |
| 3053 java_lang_reflect_Method::compute_offsets(); | |
| 3054 java_lang_reflect_Constructor::compute_offsets(); | |
| 3055 java_lang_reflect_Field::compute_offsets(); | |
| 3056 if (JDK_Version::is_gte_jdk14x_version()) { | |
| 3057 java_nio_Buffer::compute_offsets(); | |
| 3058 } | |
| 3059 if (JDK_Version::is_gte_jdk15x_version()) { | |
| 3060 sun_reflect_ConstantPool::compute_offsets(); | |
| 3061 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets(); | |
| 3062 } | |
| 3063 sun_misc_AtomicLongCSImpl::compute_offsets(); | |
| 710 | 3064 |
| 3065 // generated interpreter code wants to know about the offsets we just computed: | |
| 3066 AbstractAssembler::update_delayed_values(); | |
| 0 | 3067 } |
| 3068 | |
| 3069 #ifndef PRODUCT | |
| 3070 | |
| 3071 // These functions exist to assert the validity of hard-coded field offsets to guard | |
| 3072 // against changes in the class files | |
| 3073 | |
| 3074 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3075 EXCEPTION_MARK; | |
| 3076 fieldDescriptor fd; | |
|
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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1989
diff
changeset
|
3077 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3078 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3079 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
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|
3080 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
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diff
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|
3081 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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diff
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|
3082 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3083 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name); |
| 3084 return false; | |
| 3085 } | |
| 3086 if (fd.is_static()) { | |
| 3087 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name); | |
| 3088 return false; | |
| 3089 } | |
| 3090 if (fd.offset() == hardcoded_offset ) { | |
| 3091 return true; | |
| 3092 } else { | |
| 3093 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.", | |
| 3094 klass_name, field_name, hardcoded_offset, fd.offset()); | |
| 3095 return false; | |
| 3096 } | |
| 3097 } | |
| 3098 | |
| 3099 | |
| 3100 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) { | |
| 3101 EXCEPTION_MARK; | |
| 3102 fieldDescriptor fd; | |
|
2177
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diff
changeset
|
3103 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
| 0 | 3104 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
| 3105 instanceKlassHandle h_klass (THREAD, k); | |
|
2177
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|
3106 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
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diff
changeset
|
3107 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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1989
diff
changeset
|
3108 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
| 0 | 3109 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
| 3110 return false; | |
| 3111 } | |
| 3112 if (!fd.is_static()) { | |
| 3113 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name); | |
| 3114 return false; | |
| 3115 } | |
|
2376
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parents:
2357
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|
3116 if (fd.offset() == hardcoded_offset + instanceMirrorKlass::offset_of_static_fields()) { |
| 0 | 3117 return true; |
| 3118 } else { | |
|
2376
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diff
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|
3119 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - instanceMirrorKlass::offset_of_static_fields()); |
| 0 | 3120 return false; |
| 3121 } | |
| 3122 } | |
| 3123 | |
| 3124 | |
|
132
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|
3125 bool JavaClasses::check_constant(const char *klass_name, int hardcoded_constant, const char *field_name, const char* field_sig) { |
|
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|
3126 EXCEPTION_MARK; |
|
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|
3127 fieldDescriptor fd; |
|
2177
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diff
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|
3128 TempNewSymbol klass_sym = SymbolTable::new_symbol(klass_name, CATCH); |
|
132
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|
3129 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH); |
|
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|
3130 instanceKlassHandle h_klass (THREAD, k); |
|
2177
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diff
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|
3131 TempNewSymbol f_name = SymbolTable::new_symbol(field_name, CATCH); |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
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diff
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|
3132 TempNewSymbol f_sig = SymbolTable::new_symbol(field_sig, CATCH); |
|
3582bf76420e
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diff
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|
3133 if (!h_klass->find_local_field(f_name, f_sig, &fd)) { |
|
132
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|
3134 tty->print_cr("Static field %s.%s not found", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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diff
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|
3135 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3136 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3137 if (!fd.is_static() || !fd.has_initial_value()) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3138 tty->print_cr("Static field %s.%s appears to be non-constant", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
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|
3139 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3140 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3141 if (!fd.initial_value_tag().is_int()) { |
|
60b728ec77c1
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jrose
parents:
113
diff
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|
3142 tty->print_cr("Static field %s.%s is not an int", klass_name, field_name); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3143 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3144 } |
|
60b728ec77c1
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jrose
parents:
113
diff
changeset
|
3145 jint field_value = fd.int_initial_value(); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3146 if (field_value == hardcoded_constant) { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3147 return true; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3148 } else { |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3149 tty->print_cr("Constant value of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_constant, field_value); |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3150 return false; |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3151 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3152 } |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
changeset
|
3153 |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
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113
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|
3154 |
| 0 | 3155 // Check the hard-coded field offsets of all the classes in this file |
| 3156 | |
| 3157 void JavaClasses::check_offsets() { | |
| 3158 bool valid = true; | |
| 3159 | |
| 3160 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ | |
| 3161 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig) | |
| 3162 | |
|
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3163 #define CHECK_LONG_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
132
diff
changeset
|
3164 valid &= check_offset(klass_name, cpp_klass_name :: long_ ## field_name ## _offset, #field_name, field_sig) |
|
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
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diff
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|
3165 |
| 0 | 3166 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \ |
| 3167 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig) | |
| 3168 | |
|
132
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jrose
parents:
113
diff
changeset
|
3169 #define CHECK_CONSTANT(klass_name, cpp_klass_name, field_name, field_sig) \ |
|
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
113
diff
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|
3170 valid &= check_constant(klass_name, cpp_klass_name :: field_name, #field_name, field_sig) |
|
60b728ec77c1
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|
3171 |
| 0 | 3172 // java.lang.String |
| 3173 | |
| 3174 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C"); | |
| 3175 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I"); | |
| 3176 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I"); | |
| 3177 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I"); | |
| 3178 | |
| 3179 // java.lang.Class | |
| 3180 | |
| 3181 // Fake fields | |
| 3182 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked | |
| 3183 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked | |
| 3184 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked | |
| 3185 | |
| 3186 // java.lang.Throwable | |
| 3187 | |
| 3188 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;"); | |
| 3189 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;"); | |
| 3190 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;"); | |
| 3191 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;"); | |
| 3192 | |
| 3193 // Boxed primitive objects (java_lang_boxing_object) | |
| 3194 | |
| 3195 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z"); | |
| 3196 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C"); | |
| 3197 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F"); | |
|
165
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kvn
parents:
132
diff
changeset
|
3198 CHECK_LONG_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D"); |
| 0 | 3199 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B"); |
| 3200 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S"); | |
| 3201 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I"); | |
|
165
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diff
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|
3202 CHECK_LONG_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J"); |
| 0 | 3203 |
| 3204 // java.lang.ClassLoader | |
| 3205 | |
| 3206 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;"); | |
| 3207 | |
| 3208 // java.lang.System | |
| 3209 | |
| 3210 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;"); | |
| 3211 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;"); | |
| 3212 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;"); | |
| 3213 | |
| 3214 // java.lang.StackTraceElement | |
| 3215 | |
| 3216 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;"); | |
| 3217 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;"); | |
| 3218 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;"); | |
| 3219 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I"); | |
| 3220 | |
| 3221 // java.lang.ref.Reference | |
| 3222 | |
| 3223 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;"); | |
| 3224 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;"); | |
| 3225 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;"); | |
| 3226 // Fake field | |
| 3227 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;"); | |
| 3228 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;"); | |
| 3229 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;"); | |
| 3230 | |
| 3231 // java.lang.ref.SoftReference | |
| 3232 | |
| 3233 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J"); | |
| 3234 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J"); | |
| 3235 | |
| 3236 // java.lang.AssertionStatusDirectives | |
| 3237 // | |
| 3238 // The CheckAssertionStatusDirectives boolean can be removed from here and | |
| 3239 // globals.hpp after the AssertionStatusDirectives class has been integrated | |
| 3240 // into merlin "for some time." Without it, the vm will fail with early | |
| 3241 // merlin builds. | |
| 3242 | |
| 3243 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) { | |
| 3244 const char* nm = "java/lang/AssertionStatusDirectives"; | |
| 3245 const char* sig = "[Ljava/lang/String;"; | |
| 3246 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig); | |
| 3247 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z"); | |
| 3248 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig); | |
| 3249 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z"); | |
| 3250 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z"); | |
| 3251 } | |
| 3252 | |
| 3253 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed"); | |
| 3254 } | |
| 3255 | |
| 3256 #endif // PRODUCT | |
| 3257 | |
| 3258 void javaClasses_init() { | |
| 3259 JavaClasses::compute_offsets(); | |
| 3260 JavaClasses::check_offsets(); | |
| 3261 FilteredFieldsMap::initialize(); // must be done after computing offsets. | |
| 3262 } |