1 /* 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2012 Red Hat, Inc. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #include "precompiled.hpp" 27 #include "ci/ciReplay.hpp" 28 #include "classfile/altHashing.hpp" 29 #include "classfile/classLoader.hpp" 30 #include "classfile/javaClasses.hpp" 31 #include "classfile/symbolTable.hpp" 32 #include "classfile/systemDictionary.hpp" 33 #include "classfile/vmSymbols.hpp" 34 #include "interpreter/linkResolver.hpp" 35 #ifndef SERIALGC 36 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp" 37 #endif // SERIALGC 38 #include "memory/allocation.hpp" 39 #include "memory/allocation.inline.hpp" 40 #include "memory/gcLocker.inline.hpp" 41 #include "memory/oopFactory.hpp" 42 #include "memory/universe.inline.hpp" 43 #include "oops/instanceKlass.hpp" 44 #include "oops/instanceOop.hpp" 45 #include "oops/markOop.hpp" 46 #include "oops/method.hpp" 47 #include "oops/objArrayKlass.hpp" 48 #include "oops/objArrayOop.hpp" 49 #include "oops/oop.inline.hpp" 50 #include "oops/symbol.hpp" 51 #include "oops/typeArrayKlass.hpp" 52 #include "oops/typeArrayOop.hpp" 53 #include "prims/jni.h" 54 #include "prims/jniCheck.hpp" 55 #include "prims/jniExport.hpp" 56 #include "prims/jniFastGetField.hpp" 57 #include "prims/jvm.h" 58 #include "prims/jvm_misc.hpp" 59 #include "prims/jvmtiExport.hpp" 60 #include "prims/jvmtiThreadState.hpp" 61 #include "runtime/compilationPolicy.hpp" 62 #include "runtime/fieldDescriptor.hpp" 63 #include "runtime/fprofiler.hpp" 64 #include "runtime/handles.inline.hpp" 65 #include "runtime/interfaceSupport.hpp" 66 #include "runtime/java.hpp" 67 #include "runtime/javaCalls.hpp" 68 #include "runtime/jfieldIDWorkaround.hpp" 69 #include "runtime/reflection.hpp" 70 #include "runtime/sharedRuntime.hpp" 71 #include "runtime/signature.hpp" 72 #include "runtime/thread.inline.hpp" 73 #include "runtime/vm_operations.hpp" 74 #include "services/runtimeService.hpp" 75 #include "trace/tracing.hpp" 76 #include "trace/traceEventTypes.hpp" 77 #include "utilities/defaultStream.hpp" 78 #include "utilities/dtrace.hpp" 79 #include "utilities/events.hpp" 80 #include "utilities/histogram.hpp" 81 #ifdef TARGET_OS_FAMILY_linux 82 # include "os_linux.inline.hpp" 83 #endif 84 #ifdef TARGET_OS_FAMILY_solaris 85 # include "os_solaris.inline.hpp" 86 #endif 87 #ifdef TARGET_OS_FAMILY_windows 88 # include "os_windows.inline.hpp" 89 #endif 90 #ifdef TARGET_OS_FAMILY_bsd 91 # include "os_bsd.inline.hpp" 92 #endif 93 94 static jint CurrentVersion = JNI_VERSION_1_6; 95 96 97 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace 98 // '-return' probe regardless of the return path is taken out of the function. 99 // Methods that have multiple return paths use this to avoid having to 100 // instrument each return path. Methods that use CHECK or THROW must use this 101 // since those macros can cause an immedate uninstrumented return. 102 // 103 // In order to get the return value, a reference to the variable containing 104 // the return value must be passed to the contructor of the object, and 105 // the return value must be set before return (since the mark object has 106 // a reference to it). 107 // 108 // Example: 109 // DT_RETURN_MARK_DECL(SomeFunc, int); 110 // JNI_ENTRY(int, SomeFunc, ...) 111 // int return_value = 0; 112 // DT_RETURN_MARK(SomeFunc, int, (const int&)return_value); 113 // foo(CHECK_0) 114 // return_value = 5; 115 // return return_value; 116 // JNI_END 117 #ifndef USDT2 118 #define DT_RETURN_MARK_DECL(name, type) \ 119 HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type); \ 120 DTRACE_ONLY( \ 121 class DTraceReturnProbeMark_##name { \ 122 public: \ 123 const type& _ret_ref; \ 124 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \ 125 ~DTraceReturnProbeMark_##name() { \ 126 HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref); \ 127 } \ 128 } \ 129 ) 130 // Void functions are simpler since there's no return value 131 #define DT_VOID_RETURN_MARK_DECL(name) \ 132 HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return); \ 133 DTRACE_ONLY( \ 134 class DTraceReturnProbeMark_##name { \ 135 public: \ 136 ~DTraceReturnProbeMark_##name() { \ 137 HS_DTRACE_PROBE0(hotspot_jni, name##__return); \ 138 } \ 139 } \ 140 ) 141 142 #else /* USDT2 */ 143 144 #define DT_RETURN_MARK_DECL(name, type, probe) \ 145 DTRACE_ONLY( \ 146 class DTraceReturnProbeMark_##name { \ 147 public: \ 148 const type& _ret_ref; \ 149 DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {} \ 150 ~DTraceReturnProbeMark_##name() { \ 151 probe; \ 152 } \ 153 } \ 154 ) 155 // Void functions are simpler since there's no return value 156 #define DT_VOID_RETURN_MARK_DECL(name, probe) \ 157 DTRACE_ONLY( \ 158 class DTraceReturnProbeMark_##name { \ 159 public: \ 160 ~DTraceReturnProbeMark_##name() { \ 161 probe; \ 162 } \ 163 } \ 164 ) 165 #endif /* USDT2 */ 166 167 // Place these macros in the function to mark the return. Non-void 168 // functions need the type and address of the return value. 169 #define DT_RETURN_MARK(name, type, ref) \ 170 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) ) 171 #define DT_VOID_RETURN_MARK(name) \ 172 DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark ) 173 174 175 // Use these to select distinct code for floating-point vs. non-floating point 176 // situations. Used from within common macros where we need slightly 177 // different behavior for Float/Double 178 #define FP_SELECT_Boolean(intcode, fpcode) intcode 179 #define FP_SELECT_Byte(intcode, fpcode) intcode 180 #define FP_SELECT_Char(intcode, fpcode) intcode 181 #define FP_SELECT_Short(intcode, fpcode) intcode 182 #define FP_SELECT_Object(intcode, fpcode) intcode 183 #define FP_SELECT_Int(intcode, fpcode) intcode 184 #define FP_SELECT_Long(intcode, fpcode) intcode 185 #define FP_SELECT_Float(intcode, fpcode) fpcode 186 #define FP_SELECT_Double(intcode, fpcode) fpcode 187 #define FP_SELECT(TypeName, intcode, fpcode) \ 188 FP_SELECT_##TypeName(intcode, fpcode) 189 190 #define COMMA , 191 192 // Choose DT_RETURN_MARK macros based on the type: float/double -> void 193 // (dtrace doesn't do FP yet) 194 #ifndef USDT2 195 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \ 196 FP_SELECT(TypeName, \ 197 DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) ) 198 #else /* USDT2 */ 199 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe) \ 200 FP_SELECT(TypeName, \ 201 DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) ) 202 #endif /* USDT2 */ 203 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \ 204 FP_SELECT(TypeName, \ 205 DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) ) 206 207 208 // out-of-line helpers for class jfieldIDWorkaround: 209 210 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) { 211 if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) { 212 uintptr_t as_uint = (uintptr_t) id; 213 intptr_t offset = raw_instance_offset(id); 214 if (is_checked_jfieldID(id)) { 215 if (!klass_hash_ok(k, id)) { 216 return false; 217 } 218 } 219 return InstanceKlass::cast(k)->contains_field_offset(offset); 220 } else { 221 JNIid* result = (JNIid*) id; 222 #ifdef ASSERT 223 return result != NULL && result->is_static_field_id(); 224 #else 225 return result != NULL; 226 #endif 227 } 228 } 229 230 231 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) { 232 if (offset <= small_offset_mask) { 233 Klass* field_klass = k; 234 Klass* super_klass = field_klass->super(); 235 // With compressed oops the most super class with nonstatic fields would 236 // be the owner of fields embedded in the header. 237 while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() && 238 InstanceKlass::cast(super_klass)->contains_field_offset(offset)) { 239 field_klass = super_klass; // super contains the field also 240 super_klass = field_klass->super(); 241 } 242 debug_only(No_Safepoint_Verifier nosafepoint;) 243 uintptr_t klass_hash = field_klass->identity_hash(); 244 return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place; 245 } else { 246 #if 0 247 #ifndef PRODUCT 248 { 249 ResourceMark rm; 250 warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name()); 251 } 252 #endif 253 #endif 254 return 0; 255 } 256 } 257 258 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) { 259 uintptr_t as_uint = (uintptr_t) id; 260 intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask; 261 do { 262 debug_only(No_Safepoint_Verifier nosafepoint;) 263 // Could use a non-blocking query for identity_hash here... 264 if ((k->identity_hash() & klass_mask) == klass_hash) 265 return true; 266 k = k->super(); 267 } while (k != NULL); 268 return false; 269 } 270 271 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) { 272 guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" ); 273 uintptr_t as_uint = (uintptr_t) id; 274 intptr_t offset = raw_instance_offset(id); 275 if (VerifyJNIFields) { 276 if (is_checked_jfieldID(id)) { 277 guarantee(klass_hash_ok(k, id), 278 "Bug in native code: jfieldID class must match object"); 279 } else { 280 #if 0 281 #ifndef PRODUCT 282 if (Verbose) { 283 ResourceMark rm; 284 warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name()); 285 } 286 #endif 287 #endif 288 } 289 } 290 guarantee(InstanceKlass::cast(k)->contains_field_offset(offset), 291 "Bug in native code: jfieldID offset must address interior of object"); 292 } 293 294 // Pick a reasonable higher bound for local capacity requested 295 // for EnsureLocalCapacity and PushLocalFrame. We don't want it too 296 // high because a test (or very unusual application) may try to allocate 297 // that many handles and run out of swap space. An implementation is 298 // permitted to allocate more handles than the ensured capacity, so this 299 // value is set high enough to prevent compatibility problems. 300 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K; 301 302 303 // Wrapper to trace JNI functions 304 305 #ifdef ASSERT 306 Histogram* JNIHistogram; 307 static volatile jint JNIHistogram_lock = 0; 308 309 class JNITraceWrapper : public StackObj { 310 public: 311 JNITraceWrapper(const char* format, ...) { 312 if (TraceJNICalls) { 313 va_list ap; 314 va_start(ap, format); 315 tty->print("JNI "); 316 tty->vprint_cr(format, ap); 317 va_end(ap); 318 } 319 } 320 }; 321 322 class JNIHistogramElement : public HistogramElement { 323 public: 324 JNIHistogramElement(const char* name); 325 }; 326 327 JNIHistogramElement::JNIHistogramElement(const char* elementName) { 328 _name = elementName; 329 uintx count = 0; 330 331 while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) { 332 while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) { 333 count +=1; 334 if ( (WarnOnStalledSpinLock > 0) 335 && (count % WarnOnStalledSpinLock == 0)) { 336 warning("JNIHistogram_lock seems to be stalled"); 337 } 338 } 339 } 340 341 342 if(JNIHistogram == NULL) 343 JNIHistogram = new Histogram("JNI Call Counts",100); 344 345 JNIHistogram->add_element(this); 346 Atomic::dec(&JNIHistogram_lock); 347 } 348 349 #define JNICountWrapper(arg) \ 350 static JNIHistogramElement* e = new JNIHistogramElement(arg); \ 351 /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \ 352 if (e != NULL) e->increment_count() 353 #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg) 354 #else 355 #define JNIWrapper(arg) 356 #endif 357 358 359 // Implementation of JNI entries 360 361 #ifndef USDT2 362 DT_RETURN_MARK_DECL(DefineClass, jclass); 363 #else /* USDT2 */ 364 DT_RETURN_MARK_DECL(DefineClass, jclass 365 , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref)); 366 #endif /* USDT2 */ 367 368 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef, 369 const jbyte *buf, jsize bufLen)) 370 JNIWrapper("DefineClass"); 371 372 #ifndef USDT2 373 DTRACE_PROBE5(hotspot_jni, DefineClass__entry, 374 env, name, loaderRef, buf, bufLen); 375 #else /* USDT2 */ 376 HOTSPOT_JNI_DEFINECLASS_ENTRY( 377 env, (char*) name, loaderRef, (char*) buf, bufLen); 378 #endif /* USDT2 */ 379 jclass cls = NULL; 380 DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls); 381 382 TempNewSymbol class_name = NULL; 383 // Since exceptions can be thrown, class initialization can take place 384 // if name is NULL no check for class name in .class stream has to be made. 385 if (name != NULL) { 386 const int str_len = (int)strlen(name); 387 if (str_len > Symbol::max_length()) { 388 // It's impossible to create this class; the name cannot fit 389 // into the constant pool. 390 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); 391 } 392 class_name = SymbolTable::new_symbol(name, CHECK_NULL); 393 } 394 ResourceMark rm(THREAD); 395 ClassFileStream st((u1*) buf, bufLen, NULL); 396 Handle class_loader (THREAD, JNIHandles::resolve(loaderRef)); 397 398 if (UsePerfData && !class_loader.is_null()) { 399 // check whether the current caller thread holds the lock or not. 400 // If not, increment the corresponding counter 401 if (ObjectSynchronizer:: 402 query_lock_ownership((JavaThread*)THREAD, class_loader) != 403 ObjectSynchronizer::owner_self) { 404 ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc(); 405 } 406 } 407 Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader, 408 Handle(), &st, true, 409 CHECK_NULL); 410 411 if (TraceClassResolution && k != NULL) { 412 trace_class_resolution(k); 413 } 414 415 cls = (jclass)JNIHandles::make_local( 416 env, k->java_mirror()); 417 return cls; 418 JNI_END 419 420 421 422 static bool first_time_FindClass = true; 423 424 #ifndef USDT2 425 DT_RETURN_MARK_DECL(FindClass, jclass); 426 #else /* USDT2 */ 427 DT_RETURN_MARK_DECL(FindClass, jclass 428 , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref)); 429 #endif /* USDT2 */ 430 431 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name)) 432 JNIWrapper("FindClass"); 433 #ifndef USDT2 434 DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name); 435 #else /* USDT2 */ 436 HOTSPOT_JNI_FINDCLASS_ENTRY( 437 env, (char *)name); 438 #endif /* USDT2 */ 439 440 jclass result = NULL; 441 DT_RETURN_MARK(FindClass, jclass, (const jclass&)result); 442 443 // Remember if we are the first invocation of jni_FindClass 444 bool first_time = first_time_FindClass; 445 first_time_FindClass = false; 446 447 // Sanity check the name: it cannot be null or larger than the maximum size 448 // name we can fit in the constant pool. 449 if (name == NULL || (int)strlen(name) > Symbol::max_length()) { 450 THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name); 451 } 452 453 //%note jni_3 454 Handle loader; 455 Handle protection_domain; 456 // Find calling class 457 instanceKlassHandle k (THREAD, thread->security_get_caller_class(0)); 458 if (k.not_null()) { 459 loader = Handle(THREAD, k->class_loader()); 460 // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed 461 // in the correct class context. 462 if (loader.is_null() && 463 k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) { 464 JavaValue result(T_OBJECT); 465 JavaCalls::call_static(&result, k, 466 vmSymbols::getFromClass_name(), 467 vmSymbols::void_class_signature(), 468 thread); 469 if (HAS_PENDING_EXCEPTION) { 470 Handle ex(thread, thread->pending_exception()); 471 CLEAR_PENDING_EXCEPTION; 472 THROW_HANDLE_0(ex); 473 } 474 oop mirror = (oop) result.get_jobject(); 475 loader = Handle(THREAD, 476 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader()); 477 protection_domain = Handle(THREAD, 478 InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain()); 479 } 480 } else { 481 // We call ClassLoader.getSystemClassLoader to obtain the system class loader. 482 loader = Handle(THREAD, SystemDictionary::java_system_loader()); 483 } 484 485 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); 486 result = find_class_from_class_loader(env, sym, true, loader, 487 protection_domain, true, thread); 488 489 if (TraceClassResolution && result != NULL) { 490 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result))); 491 } 492 493 // If we were the first invocation of jni_FindClass, we enable compilation again 494 // rather than just allowing invocation counter to overflow and decay. 495 // Controlled by flag DelayCompilationDuringStartup. 496 if (first_time && !CompileTheWorld) 497 CompilationPolicy::completed_vm_startup(); 498 499 return result; 500 JNI_END 501 502 #ifndef USDT2 503 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID); 504 #else /* USDT2 */ 505 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID 506 , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref)); 507 #endif /* USDT2 */ 508 509 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method)) 510 JNIWrapper("FromReflectedMethod"); 511 #ifndef USDT2 512 DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method); 513 #else /* USDT2 */ 514 HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY( 515 env, method); 516 #endif /* USDT2 */ 517 jmethodID ret = NULL; 518 DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret); 519 520 // method is a handle to a java.lang.reflect.Method object 521 oop reflected = JNIHandles::resolve_non_null(method); 522 oop mirror = NULL; 523 int slot = 0; 524 525 if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) { 526 mirror = java_lang_reflect_Constructor::clazz(reflected); 527 slot = java_lang_reflect_Constructor::slot(reflected); 528 } else { 529 assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type"); 530 mirror = java_lang_reflect_Method::clazz(reflected); 531 slot = java_lang_reflect_Method::slot(reflected); 532 } 533 Klass* k = java_lang_Class::as_Klass(mirror); 534 535 KlassHandle k1(THREAD, k); 536 // Make sure class is initialized before handing id's out to methods 537 k1()->initialize(CHECK_NULL); 538 Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot); 539 ret = m==NULL? NULL : m->jmethod_id(); // return NULL if reflected method deleted 540 return ret; 541 JNI_END 542 543 #ifndef USDT2 544 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID); 545 #else /* USDT2 */ 546 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID 547 , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref)); 548 #endif /* USDT2 */ 549 550 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field)) 551 JNIWrapper("FromReflectedField"); 552 #ifndef USDT2 553 DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field); 554 #else /* USDT2 */ 555 HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY( 556 env, field); 557 #endif /* USDT2 */ 558 jfieldID ret = NULL; 559 DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret); 560 561 // field is a handle to a java.lang.reflect.Field object 562 oop reflected = JNIHandles::resolve_non_null(field); 563 oop mirror = java_lang_reflect_Field::clazz(reflected); 564 Klass* k = java_lang_Class::as_Klass(mirror); 565 int slot = java_lang_reflect_Field::slot(reflected); 566 int modifiers = java_lang_reflect_Field::modifiers(reflected); 567 568 KlassHandle k1(THREAD, k); 569 // Make sure class is initialized before handing id's out to fields 570 k1()->initialize(CHECK_NULL); 571 572 // First check if this is a static field 573 if (modifiers & JVM_ACC_STATIC) { 574 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot ); 575 JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset); 576 assert(id != NULL, "corrupt Field object"); 577 debug_only(id->set_is_static_field_id();) 578 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass* 579 ret = jfieldIDWorkaround::to_static_jfieldID(id); 580 return ret; 581 } 582 583 // The slot is the index of the field description in the field-array 584 // The jfieldID is the offset of the field within the object 585 // It may also have hash bits for k, if VerifyJNIFields is turned on. 586 intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot ); 587 assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object"); 588 ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset); 589 return ret; 590 JNI_END 591 592 #ifndef USDT2 593 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject); 594 #else /* USDT2 */ 595 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject 596 , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref)); 597 #endif /* USDT2 */ 598 599 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic)) 600 JNIWrapper("ToReflectedMethod"); 601 #ifndef USDT2 602 DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic); 603 #else /* USDT2 */ 604 HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY( 605 env, cls, (uintptr_t) method_id, isStatic); 606 #endif /* USDT2 */ 607 jobject ret = NULL; 608 DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret); 609 610 methodHandle m (THREAD, Method::resolve_jmethod_id(method_id)); 611 assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match"); 612 oop reflection_method; 613 if (m->is_initializer()) { 614 reflection_method = Reflection::new_constructor(m, CHECK_NULL); 615 } else { 616 reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL); 617 } 618 ret = JNIHandles::make_local(env, reflection_method); 619 return ret; 620 JNI_END 621 622 #ifndef USDT2 623 DT_RETURN_MARK_DECL(GetSuperclass, jclass); 624 #else /* USDT2 */ 625 DT_RETURN_MARK_DECL(GetSuperclass, jclass 626 , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref)); 627 #endif /* USDT2 */ 628 629 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub)) 630 JNIWrapper("GetSuperclass"); 631 #ifndef USDT2 632 DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub); 633 #else /* USDT2 */ 634 HOTSPOT_JNI_GETSUPERCLASS_ENTRY( 635 env, sub); 636 #endif /* USDT2 */ 637 jclass obj = NULL; 638 DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj); 639 640 oop mirror = JNIHandles::resolve_non_null(sub); 641 // primitive classes return NULL 642 if (java_lang_Class::is_primitive(mirror)) return NULL; 643 644 // Rules of Class.getSuperClass as implemented by KLass::java_super: 645 // arrays return Object 646 // interfaces return NULL 647 // proper classes return Klass::super() 648 Klass* k = java_lang_Class::as_Klass(mirror); 649 if (k->is_interface()) return NULL; 650 651 // return mirror for superclass 652 Klass* super = k->java_super(); 653 // super2 is the value computed by the compiler's getSuperClass intrinsic: 654 debug_only(Klass* super2 = ( k->oop_is_array() 655 ? SystemDictionary::Object_klass() 656 : k->super() ) ); 657 assert(super == super2, 658 "java_super computation depends on interface, array, other super"); 659 obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror()); 660 return obj; 661 JNI_END 662 663 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super)) 664 JNIWrapper("IsSubclassOf"); 665 #ifndef USDT2 666 DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super); 667 #else /* USDT2 */ 668 HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY( 669 env, sub, super); 670 #endif /* USDT2 */ 671 oop sub_mirror = JNIHandles::resolve_non_null(sub); 672 oop super_mirror = JNIHandles::resolve_non_null(super); 673 if (java_lang_Class::is_primitive(sub_mirror) || 674 java_lang_Class::is_primitive(super_mirror)) { 675 jboolean ret = (sub_mirror == super_mirror); 676 #ifndef USDT2 677 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret); 678 #else /* USDT2 */ 679 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN( 680 ret); 681 #endif /* USDT2 */ 682 return ret; 683 } 684 Klass* sub_klass = java_lang_Class::as_Klass(sub_mirror); 685 Klass* super_klass = java_lang_Class::as_Klass(super_mirror); 686 assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom"); 687 jboolean ret = sub_klass->is_subtype_of(super_klass) ? 688 JNI_TRUE : JNI_FALSE; 689 #ifndef USDT2 690 DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret); 691 #else /* USDT2 */ 692 HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN( 693 ret); 694 #endif /* USDT2 */ 695 return ret; 696 JNI_END 697 698 #ifndef USDT2 699 DT_RETURN_MARK_DECL(Throw, jint); 700 #else /* USDT2 */ 701 DT_RETURN_MARK_DECL(Throw, jint 702 , HOTSPOT_JNI_THROW_RETURN(_ret_ref)); 703 #endif /* USDT2 */ 704 705 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj)) 706 JNIWrapper("Throw"); 707 #ifndef USDT2 708 DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj); 709 #else /* USDT2 */ 710 HOTSPOT_JNI_THROW_ENTRY( 711 env, obj); 712 #endif /* USDT2 */ 713 jint ret = JNI_OK; 714 DT_RETURN_MARK(Throw, jint, (const jint&)ret); 715 716 THROW_OOP_(JNIHandles::resolve(obj), JNI_OK); 717 ShouldNotReachHere(); 718 JNI_END 719 720 #ifndef USDT2 721 DT_RETURN_MARK_DECL(ThrowNew, jint); 722 #else /* USDT2 */ 723 DT_RETURN_MARK_DECL(ThrowNew, jint 724 , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref)); 725 #endif /* USDT2 */ 726 727 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message)) 728 JNIWrapper("ThrowNew"); 729 #ifndef USDT2 730 DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message); 731 #else /* USDT2 */ 732 HOTSPOT_JNI_THROWNEW_ENTRY( 733 env, clazz, (char *) message); 734 #endif /* USDT2 */ 735 jint ret = JNI_OK; 736 DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret); 737 738 InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); 739 Symbol* name = k->name(); 740 Handle class_loader (THREAD, k->class_loader()); 741 Handle protection_domain (THREAD, k->protection_domain()); 742 THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK); 743 ShouldNotReachHere(); 744 JNI_END 745 746 747 // JNI functions only transform a pending async exception to a synchronous 748 // exception in ExceptionOccurred and ExceptionCheck calls, since 749 // delivering an async exception in other places won't change the native 750 // code's control flow and would be harmful when native code further calls 751 // JNI functions with a pending exception. Async exception is also checked 752 // during the call, so ExceptionOccurred/ExceptionCheck won't return 753 // false but deliver the async exception at the very end during 754 // state transition. 755 756 static void jni_check_async_exceptions(JavaThread *thread) { 757 assert(thread == Thread::current(), "must be itself"); 758 thread->check_and_handle_async_exceptions(); 759 } 760 761 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env)) 762 JNIWrapper("ExceptionOccurred"); 763 #ifndef USDT2 764 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env); 765 #else /* USDT2 */ 766 HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY( 767 env); 768 #endif /* USDT2 */ 769 jni_check_async_exceptions(thread); 770 oop exception = thread->pending_exception(); 771 jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception); 772 #ifndef USDT2 773 DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret); 774 #else /* USDT2 */ 775 HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN( 776 ret); 777 #endif /* USDT2 */ 778 return ret; 779 JNI_END 780 781 782 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env)) 783 JNIWrapper("ExceptionDescribe"); 784 #ifndef USDT2 785 DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env); 786 #else /* USDT2 */ 787 HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY( 788 env); 789 #endif /* USDT2 */ 790 if (thread->has_pending_exception()) { 791 Handle ex(thread, thread->pending_exception()); 792 thread->clear_pending_exception(); 793 if (ex->is_a(SystemDictionary::ThreadDeath_klass())) { 794 // Don't print anything if we are being killed. 795 } else { 796 jio_fprintf(defaultStream::error_stream(), "Exception "); 797 if (thread != NULL && thread->threadObj() != NULL) { 798 ResourceMark rm(THREAD); 799 jio_fprintf(defaultStream::error_stream(), 800 "in thread \"%s\" ", thread->get_thread_name()); 801 } 802 if (ex->is_a(SystemDictionary::Throwable_klass())) { 803 JavaValue result(T_VOID); 804 JavaCalls::call_virtual(&result, 805 ex, 806 KlassHandle(THREAD, 807 SystemDictionary::Throwable_klass()), 808 vmSymbols::printStackTrace_name(), 809 vmSymbols::void_method_signature(), 810 THREAD); 811 // If an exception is thrown in the call it gets thrown away. Not much 812 // we can do with it. The native code that calls this, does not check 813 // for the exception - hence, it might still be in the thread when DestroyVM gets 814 // called, potentially causing a few asserts to trigger - since no pending exception 815 // is expected. 816 CLEAR_PENDING_EXCEPTION; 817 } else { 818 ResourceMark rm(THREAD); 819 jio_fprintf(defaultStream::error_stream(), 820 ". Uncaught exception of type %s.", 821 ex->klass()->external_name()); 822 } 823 } 824 } 825 #ifndef USDT2 826 DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return); 827 #else /* USDT2 */ 828 HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN( 829 ); 830 #endif /* USDT2 */ 831 JNI_END 832 833 834 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env)) 835 JNIWrapper("ExceptionClear"); 836 #ifndef USDT2 837 DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env); 838 #else /* USDT2 */ 839 HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY( 840 env); 841 #endif /* USDT2 */ 842 843 // The jni code might be using this API to clear java thrown exception. 844 // So just mark jvmti thread exception state as exception caught. 845 JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state(); 846 if (state != NULL && state->is_exception_detected()) { 847 state->set_exception_caught(); 848 } 849 thread->clear_pending_exception(); 850 #ifndef USDT2 851 DTRACE_PROBE(hotspot_jni, ExceptionClear__return); 852 #else /* USDT2 */ 853 HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN( 854 ); 855 #endif /* USDT2 */ 856 JNI_END 857 858 859 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg)) 860 JNIWrapper("FatalError"); 861 #ifndef USDT2 862 DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg); 863 #else /* USDT2 */ 864 HOTSPOT_JNI_FATALERROR_ENTRY( 865 env, (char *) msg); 866 #endif /* USDT2 */ 867 tty->print_cr("FATAL ERROR in native method: %s", msg); 868 thread->print_stack(); 869 os::abort(); // Dump core and abort 870 JNI_END 871 872 873 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity)) 874 JNIWrapper("PushLocalFrame"); 875 #ifndef USDT2 876 DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity); 877 #else /* USDT2 */ 878 HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY( 879 env, capacity); 880 #endif /* USDT2 */ 881 //%note jni_11 882 if (capacity < 0 && capacity > MAX_REASONABLE_LOCAL_CAPACITY) { 883 #ifndef USDT2 884 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR); 885 #else /* USDT2 */ 886 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN( 887 (uint32_t)JNI_ERR); 888 #endif /* USDT2 */ 889 return JNI_ERR; 890 } 891 JNIHandleBlock* old_handles = thread->active_handles(); 892 JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread); 893 assert(new_handles != NULL, "should not be NULL"); 894 new_handles->set_pop_frame_link(old_handles); 895 thread->set_active_handles(new_handles); 896 jint ret = JNI_OK; 897 #ifndef USDT2 898 DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret); 899 #else /* USDT2 */ 900 HOTSPOT_JNI_PUSHLOCALFRAME_RETURN( 901 ret); 902 #endif /* USDT2 */ 903 return ret; 904 JNI_END 905 906 907 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result)) 908 JNIWrapper("PopLocalFrame"); 909 #ifndef USDT2 910 DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result); 911 #else /* USDT2 */ 912 HOTSPOT_JNI_POPLOCALFRAME_ENTRY( 913 env, result); 914 #endif /* USDT2 */ 915 //%note jni_11 916 Handle result_handle(thread, JNIHandles::resolve(result)); 917 JNIHandleBlock* old_handles = thread->active_handles(); 918 JNIHandleBlock* new_handles = old_handles->pop_frame_link(); 919 if (new_handles != NULL) { 920 // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL. 921 // This way code will still work if PopLocalFrame is called without a corresponding 922 // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise 923 // the release_block call will release the blocks. 924 thread->set_active_handles(new_handles); 925 old_handles->set_pop_frame_link(NULL); // clear link we won't release new_handles below 926 JNIHandleBlock::release_block(old_handles, thread); // may block 927 result = JNIHandles::make_local(thread, result_handle()); 928 } 929 #ifndef USDT2 930 DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result); 931 #else /* USDT2 */ 932 HOTSPOT_JNI_POPLOCALFRAME_RETURN( 933 result); 934 #endif /* USDT2 */ 935 return result; 936 JNI_END 937 938 939 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref)) 940 JNIWrapper("NewGlobalRef"); 941 #ifndef USDT2 942 DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref); 943 #else /* USDT2 */ 944 HOTSPOT_JNI_NEWGLOBALREF_ENTRY( 945 env, ref); 946 #endif /* USDT2 */ 947 Handle ref_handle(thread, JNIHandles::resolve(ref)); 948 jobject ret = JNIHandles::make_global(ref_handle); 949 #ifndef USDT2 950 DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret); 951 #else /* USDT2 */ 952 HOTSPOT_JNI_NEWGLOBALREF_RETURN( 953 ret); 954 #endif /* USDT2 */ 955 return ret; 956 JNI_END 957 958 // Must be JNI_ENTRY (with HandleMark) 959 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref)) 960 JNIWrapper("DeleteGlobalRef"); 961 #ifndef USDT2 962 DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref); 963 #else /* USDT2 */ 964 HOTSPOT_JNI_DELETEGLOBALREF_ENTRY( 965 env, ref); 966 #endif /* USDT2 */ 967 JNIHandles::destroy_global(ref); 968 #ifndef USDT2 969 DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return); 970 #else /* USDT2 */ 971 HOTSPOT_JNI_DELETEGLOBALREF_RETURN( 972 ); 973 #endif /* USDT2 */ 974 JNI_END 975 976 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj)) 977 JNIWrapper("DeleteLocalRef"); 978 #ifndef USDT2 979 DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj); 980 #else /* USDT2 */ 981 HOTSPOT_JNI_DELETELOCALREF_ENTRY( 982 env, obj); 983 #endif /* USDT2 */ 984 JNIHandles::destroy_local(obj); 985 #ifndef USDT2 986 DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return); 987 #else /* USDT2 */ 988 HOTSPOT_JNI_DELETELOCALREF_RETURN( 989 ); 990 #endif /* USDT2 */ 991 JNI_END 992 993 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2)) 994 JNIWrapper("IsSameObject"); 995 #ifndef USDT2 996 DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2); 997 #else /* USDT2 */ 998 HOTSPOT_JNI_ISSAMEOBJECT_ENTRY( 999 env, r1, r2); 1000 #endif /* USDT2 */ 1001 oop a = JNIHandles::resolve(r1); 1002 oop b = JNIHandles::resolve(r2); 1003 jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE; 1004 #ifndef USDT2 1005 DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret); 1006 #else /* USDT2 */ 1007 HOTSPOT_JNI_ISSAMEOBJECT_RETURN( 1008 ret); 1009 #endif /* USDT2 */ 1010 return ret; 1011 JNI_END 1012 1013 1014 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref)) 1015 JNIWrapper("NewLocalRef"); 1016 #ifndef USDT2 1017 DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref); 1018 #else /* USDT2 */ 1019 HOTSPOT_JNI_NEWLOCALREF_ENTRY( 1020 env, ref); 1021 #endif /* USDT2 */ 1022 jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref)); 1023 #ifndef USDT2 1024 DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret); 1025 #else /* USDT2 */ 1026 HOTSPOT_JNI_NEWLOCALREF_RETURN( 1027 ret); 1028 #endif /* USDT2 */ 1029 return ret; 1030 JNI_END 1031 1032 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity)) 1033 JNIWrapper("EnsureLocalCapacity"); 1034 #ifndef USDT2 1035 DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity); 1036 #else /* USDT2 */ 1037 HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY( 1038 env, capacity); 1039 #endif /* USDT2 */ 1040 jint ret; 1041 if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) { 1042 ret = JNI_OK; 1043 } else { 1044 ret = JNI_ERR; 1045 } 1046 #ifndef USDT2 1047 DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret); 1048 #else /* USDT2 */ 1049 HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN( 1050 ret); 1051 #endif /* USDT2 */ 1052 return ret; 1053 JNI_END 1054 1055 // Return the Handle Type 1056 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj)) 1057 JNIWrapper("GetObjectRefType"); 1058 #ifndef USDT2 1059 DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj); 1060 #else /* USDT2 */ 1061 HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY( 1062 env, obj); 1063 #endif /* USDT2 */ 1064 jobjectRefType ret; 1065 if (JNIHandles::is_local_handle(thread, obj) || 1066 JNIHandles::is_frame_handle(thread, obj)) 1067 ret = JNILocalRefType; 1068 else if (JNIHandles::is_global_handle(obj)) 1069 ret = JNIGlobalRefType; 1070 else if (JNIHandles::is_weak_global_handle(obj)) 1071 ret = JNIWeakGlobalRefType; 1072 else 1073 ret = JNIInvalidRefType; 1074 #ifndef USDT2 1075 DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret); 1076 #else /* USDT2 */ 1077 HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN( 1078 (void *) ret); 1079 #endif /* USDT2 */ 1080 return ret; 1081 JNI_END 1082 1083 1084 class JNI_ArgumentPusher : public SignatureIterator { 1085 protected: 1086 JavaCallArguments* _arguments; 1087 1088 virtual void get_bool () = 0; 1089 virtual void get_char () = 0; 1090 virtual void get_short () = 0; 1091 virtual void get_byte () = 0; 1092 virtual void get_int () = 0; 1093 virtual void get_long () = 0; 1094 virtual void get_float () = 0; 1095 virtual void get_double () = 0; 1096 virtual void get_object () = 0; 1097 1098 JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) { 1099 this->_return_type = T_ILLEGAL; 1100 _arguments = NULL; 1101 } 1102 1103 public: 1104 virtual void iterate( uint64_t fingerprint ) = 0; 1105 1106 void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; } 1107 1108 inline void do_bool() { if (!is_return_type()) get_bool(); } 1109 inline void do_char() { if (!is_return_type()) get_char(); } 1110 inline void do_short() { if (!is_return_type()) get_short(); } 1111 inline void do_byte() { if (!is_return_type()) get_byte(); } 1112 inline void do_int() { if (!is_return_type()) get_int(); } 1113 inline void do_long() { if (!is_return_type()) get_long(); } 1114 inline void do_float() { if (!is_return_type()) get_float(); } 1115 inline void do_double() { if (!is_return_type()) get_double(); } 1116 inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); } 1117 inline void do_array(int begin, int end) { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array 1118 inline void do_void() { } 1119 1120 JavaCallArguments* arguments() { return _arguments; } 1121 void push_receiver(Handle h) { _arguments->push_oop(h); } 1122 }; 1123 1124 1125 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher { 1126 protected: 1127 va_list _ap; 1128 1129 inline void get_bool() { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg 1130 inline void get_char() { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg 1131 inline void get_short() { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg 1132 inline void get_byte() { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg 1133 inline void get_int() { _arguments->push_int(va_arg(_ap, jint)); } 1134 1135 // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests 1136 1137 inline void get_long() { _arguments->push_long(va_arg(_ap, jlong)); } 1138 inline void get_float() { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg 1139 inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); } 1140 inline void get_object() { jobject l = va_arg(_ap, jobject); 1141 _arguments->push_oop(Handle((oop *)l, false)); } 1142 1143 inline void set_ap(va_list rap) { 1144 #ifdef va_copy 1145 va_copy(_ap, rap); 1146 #elif defined (__va_copy) 1147 __va_copy(_ap, rap); 1148 #else 1149 _ap = rap; 1150 #endif 1151 } 1152 1153 public: 1154 JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap) 1155 : JNI_ArgumentPusher(signature) { 1156 set_ap(rap); 1157 } 1158 JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap) 1159 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) { 1160 set_ap(rap); 1161 } 1162 1163 // Optimized path if we have the bitvector form of signature 1164 void iterate( uint64_t fingerprint ) { 1165 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments 1166 else { 1167 _return_type = (BasicType)((fingerprint >> static_feature_size) & 1168 result_feature_mask); 1169 1170 assert(fingerprint, "Fingerprint should not be 0"); 1171 fingerprint = fingerprint >> (static_feature_size + result_feature_size); 1172 while ( 1 ) { 1173 switch ( fingerprint & parameter_feature_mask ) { 1174 case bool_parm: 1175 case char_parm: 1176 case short_parm: 1177 case byte_parm: 1178 case int_parm: 1179 get_int(); 1180 break; 1181 case obj_parm: 1182 get_object(); 1183 break; 1184 case long_parm: 1185 get_long(); 1186 break; 1187 case float_parm: 1188 get_float(); 1189 break; 1190 case double_parm: 1191 get_double(); 1192 break; 1193 case done_parm: 1194 return; 1195 break; 1196 default: 1197 ShouldNotReachHere(); 1198 break; 1199 } 1200 fingerprint >>= parameter_feature_size; 1201 } 1202 } 1203 } 1204 }; 1205 1206 1207 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher { 1208 protected: 1209 const jvalue *_ap; 1210 1211 inline void get_bool() { _arguments->push_int((jint)(_ap++)->z); } 1212 inline void get_char() { _arguments->push_int((jint)(_ap++)->c); } 1213 inline void get_short() { _arguments->push_int((jint)(_ap++)->s); } 1214 inline void get_byte() { _arguments->push_int((jint)(_ap++)->b); } 1215 inline void get_int() { _arguments->push_int((jint)(_ap++)->i); } 1216 1217 inline void get_long() { _arguments->push_long((_ap++)->j); } 1218 inline void get_float() { _arguments->push_float((_ap++)->f); } 1219 inline void get_double() { _arguments->push_double((_ap++)->d);} 1220 inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); } 1221 1222 inline void set_ap(const jvalue *rap) { _ap = rap; } 1223 1224 public: 1225 JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap) 1226 : JNI_ArgumentPusher(signature) { 1227 set_ap(rap); 1228 } 1229 JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap) 1230 : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) { 1231 set_ap(rap); 1232 } 1233 1234 // Optimized path if we have the bitvector form of signature 1235 void iterate( uint64_t fingerprint ) { 1236 if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments 1237 else { 1238 _return_type = (BasicType)((fingerprint >> static_feature_size) & 1239 result_feature_mask); 1240 assert(fingerprint, "Fingerprint should not be 0"); 1241 fingerprint = fingerprint >> (static_feature_size + result_feature_size); 1242 while ( 1 ) { 1243 switch ( fingerprint & parameter_feature_mask ) { 1244 case bool_parm: 1245 get_bool(); 1246 break; 1247 case char_parm: 1248 get_char(); 1249 break; 1250 case short_parm: 1251 get_short(); 1252 break; 1253 case byte_parm: 1254 get_byte(); 1255 break; 1256 case int_parm: 1257 get_int(); 1258 break; 1259 case obj_parm: 1260 get_object(); 1261 break; 1262 case long_parm: 1263 get_long(); 1264 break; 1265 case float_parm: 1266 get_float(); 1267 break; 1268 case double_parm: 1269 get_double(); 1270 break; 1271 case done_parm: 1272 return; 1273 break; 1274 default: 1275 ShouldNotReachHere(); 1276 break; 1277 } 1278 fingerprint >>= parameter_feature_size; 1279 } 1280 } 1281 } 1282 }; 1283 1284 1285 enum JNICallType { 1286 JNI_STATIC, 1287 JNI_VIRTUAL, 1288 JNI_NONVIRTUAL 1289 }; 1290 1291 static methodHandle jni_resolve_interface_call(Handle recv, methodHandle method, TRAPS) { 1292 assert(!method.is_null() , "method should not be null"); 1293 1294 KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc) 1295 if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass()); 1296 KlassHandle spec_klass (THREAD, method->method_holder()); 1297 Symbol* name = method->name(); 1298 Symbol* signature = method->signature(); 1299 CallInfo info; 1300 LinkResolver::resolve_interface_call(info, recv, recv_klass, spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle())); 1301 return info.selected_method(); 1302 } 1303 1304 static methodHandle jni_resolve_virtual_call(Handle recv, methodHandle method, TRAPS) { 1305 assert(!method.is_null() , "method should not be null"); 1306 1307 KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc) 1308 if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass()); 1309 KlassHandle spec_klass (THREAD, method->method_holder()); 1310 Symbol* name = method->name(); 1311 Symbol* signature = method->signature(); 1312 CallInfo info; 1313 LinkResolver::resolve_virtual_call(info, recv, recv_klass, spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle())); 1314 return info.selected_method(); 1315 } 1316 1317 1318 1319 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { 1320 methodHandle method(THREAD, Method::resolve_jmethod_id(method_id)); 1321 1322 // Create object to hold arguments for the JavaCall, and associate it with 1323 // the jni parser 1324 ResourceMark rm(THREAD); 1325 int number_of_parameters = method->size_of_parameters(); 1326 JavaCallArguments java_args(number_of_parameters); 1327 args->set_java_argument_object(&java_args); 1328 1329 assert(method->is_static(), "method should be static"); 1330 1331 // Fill out JavaCallArguments object 1332 args->iterate( Fingerprinter(method).fingerprint() ); 1333 // Initialize result type 1334 result->set_type(args->get_ret_type()); 1335 1336 // Invoke the method. Result is returned as oop. 1337 JavaCalls::call(result, method, &java_args, CHECK); 1338 1339 // Convert result 1340 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { 1341 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); 1342 } 1343 } 1344 1345 1346 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) { 1347 oop recv = JNIHandles::resolve(receiver); 1348 if (recv == NULL) { 1349 THROW(vmSymbols::java_lang_NullPointerException()); 1350 } 1351 Handle h_recv(THREAD, recv); 1352 1353 int number_of_parameters; 1354 Method* selected_method; 1355 { 1356 Method* m = Method::resolve_jmethod_id(method_id); 1357 number_of_parameters = m->size_of_parameters(); 1358 Klass* holder = m->method_holder(); 1359 if (!(holder)->is_interface()) { 1360 // non-interface call -- for that little speed boost, don't handlize 1361 debug_only(No_Safepoint_Verifier nosafepoint;) 1362 if (call_type == JNI_VIRTUAL) { 1363 // jni_GetMethodID makes sure class is linked and initialized 1364 // so m should have a valid vtable index. 1365 int vtbl_index = m->vtable_index(); 1366 if (vtbl_index != Method::nonvirtual_vtable_index) { 1367 Klass* k = h_recv->klass(); 1368 // k might be an arrayKlassOop but all vtables start at 1369 // the same place. The cast is to avoid virtual call and assertion. 1370 InstanceKlass *ik = (InstanceKlass*)k; 1371 selected_method = ik->method_at_vtable(vtbl_index); 1372 } else { 1373 // final method 1374 selected_method = m; 1375 } 1376 } else { 1377 // JNI_NONVIRTUAL call 1378 selected_method = m; 1379 } 1380 } else { 1381 // interface call 1382 KlassHandle h_holder(THREAD, holder); 1383 1384 int itbl_index = m->cached_itable_index(); 1385 if (itbl_index == -1) { 1386 itbl_index = klassItable::compute_itable_index(m); 1387 m->set_cached_itable_index(itbl_index); 1388 // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again 1389 } 1390 Klass* k = h_recv->klass(); 1391 selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK); 1392 } 1393 } 1394 1395 methodHandle method(THREAD, selected_method); 1396 1397 // Create object to hold arguments for the JavaCall, and associate it with 1398 // the jni parser 1399 ResourceMark rm(THREAD); 1400 JavaCallArguments java_args(number_of_parameters); 1401 args->set_java_argument_object(&java_args); 1402 1403 // handle arguments 1404 assert(!method->is_static(), "method should not be static"); 1405 args->push_receiver(h_recv); // Push jobject handle 1406 1407 // Fill out JavaCallArguments object 1408 args->iterate( Fingerprinter(method).fingerprint() ); 1409 // Initialize result type 1410 result->set_type(args->get_ret_type()); 1411 1412 // Invoke the method. Result is returned as oop. 1413 JavaCalls::call(result, method, &java_args, CHECK); 1414 1415 // Convert result 1416 if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) { 1417 result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject())); 1418 } 1419 } 1420 1421 1422 static instanceOop alloc_object(jclass clazz, TRAPS) { 1423 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); 1424 k()->check_valid_for_instantiation(false, CHECK_NULL); 1425 InstanceKlass::cast(k())->initialize(CHECK_NULL); 1426 instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD); 1427 return ih; 1428 } 1429 1430 #ifndef USDT2 1431 DT_RETURN_MARK_DECL(AllocObject, jobject); 1432 #else /* USDT2 */ 1433 DT_RETURN_MARK_DECL(AllocObject, jobject 1434 , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref)); 1435 #endif /* USDT2 */ 1436 1437 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz)) 1438 JNIWrapper("AllocObject"); 1439 1440 #ifndef USDT2 1441 DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz); 1442 #else /* USDT2 */ 1443 HOTSPOT_JNI_ALLOCOBJECT_ENTRY( 1444 env, clazz); 1445 #endif /* USDT2 */ 1446 jobject ret = NULL; 1447 DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret); 1448 1449 instanceOop i = alloc_object(clazz, CHECK_NULL); 1450 ret = JNIHandles::make_local(env, i); 1451 return ret; 1452 JNI_END 1453 1454 #ifndef USDT2 1455 DT_RETURN_MARK_DECL(NewObjectA, jobject); 1456 #else /* USDT2 */ 1457 DT_RETURN_MARK_DECL(NewObjectA, jobject 1458 , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref)); 1459 #endif /* USDT2 */ 1460 1461 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args)) 1462 JNIWrapper("NewObjectA"); 1463 #ifndef USDT2 1464 DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID); 1465 #else /* USDT2 */ 1466 HOTSPOT_JNI_NEWOBJECTA_ENTRY( 1467 env, clazz, (uintptr_t) methodID); 1468 #endif /* USDT2 */ 1469 jobject obj = NULL; 1470 DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj); 1471 1472 instanceOop i = alloc_object(clazz, CHECK_NULL); 1473 obj = JNIHandles::make_local(env, i); 1474 JavaValue jvalue(T_VOID); 1475 JNI_ArgumentPusherArray ap(methodID, args); 1476 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); 1477 return obj; 1478 JNI_END 1479 1480 #ifndef USDT2 1481 DT_RETURN_MARK_DECL(NewObjectV, jobject); 1482 #else /* USDT2 */ 1483 DT_RETURN_MARK_DECL(NewObjectV, jobject 1484 , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref)); 1485 #endif /* USDT2 */ 1486 1487 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args)) 1488 JNIWrapper("NewObjectV"); 1489 #ifndef USDT2 1490 DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID); 1491 #else /* USDT2 */ 1492 HOTSPOT_JNI_NEWOBJECTV_ENTRY( 1493 env, clazz, (uintptr_t) methodID); 1494 #endif /* USDT2 */ 1495 jobject obj = NULL; 1496 DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj); 1497 1498 instanceOop i = alloc_object(clazz, CHECK_NULL); 1499 obj = JNIHandles::make_local(env, i); 1500 JavaValue jvalue(T_VOID); 1501 JNI_ArgumentPusherVaArg ap(methodID, args); 1502 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); 1503 return obj; 1504 JNI_END 1505 1506 #ifndef USDT2 1507 DT_RETURN_MARK_DECL(NewObject, jobject); 1508 #else /* USDT2 */ 1509 DT_RETURN_MARK_DECL(NewObject, jobject 1510 , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref)); 1511 #endif /* USDT2 */ 1512 1513 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...)) 1514 JNIWrapper("NewObject"); 1515 #ifndef USDT2 1516 DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID); 1517 #else /* USDT2 */ 1518 HOTSPOT_JNI_NEWOBJECT_ENTRY( 1519 env, clazz, (uintptr_t) methodID); 1520 #endif /* USDT2 */ 1521 jobject obj = NULL; 1522 DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj); 1523 1524 instanceOop i = alloc_object(clazz, CHECK_NULL); 1525 obj = JNIHandles::make_local(env, i); 1526 va_list args; 1527 va_start(args, methodID); 1528 JavaValue jvalue(T_VOID); 1529 JNI_ArgumentPusherVaArg ap(methodID, args); 1530 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL); 1531 va_end(args); 1532 return obj; 1533 JNI_END 1534 1535 1536 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj)) 1537 JNIWrapper("GetObjectClass"); 1538 #ifndef USDT2 1539 DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj); 1540 #else /* USDT2 */ 1541 HOTSPOT_JNI_GETOBJECTCLASS_ENTRY( 1542 env, obj); 1543 #endif /* USDT2 */ 1544 Klass* k = JNIHandles::resolve_non_null(obj)->klass(); 1545 jclass ret = 1546 (jclass) JNIHandles::make_local(env, k->java_mirror()); 1547 #ifndef USDT2 1548 DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret); 1549 #else /* USDT2 */ 1550 HOTSPOT_JNI_GETOBJECTCLASS_RETURN( 1551 ret); 1552 #endif /* USDT2 */ 1553 return ret; 1554 JNI_END 1555 1556 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz)) 1557 JNIWrapper("IsInstanceOf"); 1558 #ifndef USDT2 1559 DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz); 1560 #else /* USDT2 */ 1561 HOTSPOT_JNI_ISINSTANCEOF_ENTRY( 1562 env, obj, clazz); 1563 #endif /* USDT2 */ 1564 jboolean ret = JNI_TRUE; 1565 if (obj != NULL) { 1566 ret = JNI_FALSE; 1567 Klass* k = java_lang_Class::as_Klass( 1568 JNIHandles::resolve_non_null(clazz)); 1569 if (k != NULL) { 1570 ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE; 1571 } 1572 } 1573 #ifndef USDT2 1574 DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret); 1575 #else /* USDT2 */ 1576 HOTSPOT_JNI_ISINSTANCEOF_RETURN( 1577 ret); 1578 #endif /* USDT2 */ 1579 return ret; 1580 JNI_END 1581 1582 1583 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str, 1584 const char *sig, bool is_static, TRAPS) { 1585 // %%%% This code should probably just call into a method in the LinkResolver 1586 // 1587 // The class should have been loaded (we have an instance of the class 1588 // passed in) so the method and signature should already be in the symbol 1589 // table. If they're not there, the method doesn't exist. 1590 const char *name_to_probe = (name_str == NULL) 1591 ? vmSymbols::object_initializer_name()->as_C_string() 1592 : name_str; 1593 TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe)); 1594 TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig)); 1595 1596 if (name == NULL || signature == NULL) { 1597 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); 1598 } 1599 1600 // Throw a NoSuchMethodError exception if we have an instance of a 1601 // primitive java.lang.Class 1602 if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) { 1603 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); 1604 } 1605 1606 KlassHandle klass(THREAD, 1607 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); 1608 1609 // Make sure class is linked and initialized before handing id's out to 1610 // Method*s. 1611 klass()->initialize(CHECK_NULL); 1612 1613 Method* m; 1614 if (name == vmSymbols::object_initializer_name() || 1615 name == vmSymbols::class_initializer_name()) { 1616 // Never search superclasses for constructors 1617 if (klass->oop_is_instance()) { 1618 m = InstanceKlass::cast(klass())->find_method(name, signature); 1619 } else { 1620 m = NULL; 1621 } 1622 } else { 1623 m = klass->lookup_method(name, signature); 1624 // Look up interfaces 1625 if (m == NULL && klass->oop_is_instance()) { 1626 m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name, 1627 signature); 1628 } 1629 } 1630 if (m == NULL || (m->is_static() != is_static)) { 1631 THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str); 1632 } 1633 return m->jmethod_id(); 1634 } 1635 1636 1637 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz, 1638 const char *name, const char *sig)) 1639 JNIWrapper("GetMethodID"); 1640 #ifndef USDT2 1641 DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig); 1642 #else /* USDT2 */ 1643 HOTSPOT_JNI_GETMETHODID_ENTRY( 1644 env, clazz, (char *) name, (char *) sig); 1645 #endif /* USDT2 */ 1646 jmethodID ret = get_method_id(env, clazz, name, sig, false, thread); 1647 #ifndef USDT2 1648 DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret); 1649 #else /* USDT2 */ 1650 HOTSPOT_JNI_GETMETHODID_RETURN( 1651 (uintptr_t) ret); 1652 #endif /* USDT2 */ 1653 return ret; 1654 JNI_END 1655 1656 1657 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz, 1658 const char *name, const char *sig)) 1659 JNIWrapper("GetStaticMethodID"); 1660 #ifndef USDT2 1661 DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig); 1662 #else /* USDT2 */ 1663 HOTSPOT_JNI_GETSTATICMETHODID_ENTRY( 1664 env, (char *) clazz, (char *) name, (char *)sig); 1665 #endif /* USDT2 */ 1666 jmethodID ret = get_method_id(env, clazz, name, sig, true, thread); 1667 #ifndef USDT2 1668 DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret); 1669 #else /* USDT2 */ 1670 HOTSPOT_JNI_GETSTATICMETHODID_RETURN( 1671 (uintptr_t) ret); 1672 #endif /* USDT2 */ 1673 return ret; 1674 JNI_END 1675 1676 1677 1678 // 1679 // Calling Methods 1680 // 1681 1682 #ifndef USDT2 1683 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \ 1684 \ 1685 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\ 1686 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\ 1687 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\ 1688 \ 1689 JNI_ENTRY(ResultType, \ 1690 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \ 1691 JNIWrapper("Call" XSTR(Result) "Method"); \ 1692 \ 1693 DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \ 1694 ResultType ret = 0;\ 1695 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \ 1696 (const ResultType&)ret);\ 1697 \ 1698 va_list args; \ 1699 va_start(args, methodID); \ 1700 JavaValue jvalue(Tag); \ 1701 JNI_ArgumentPusherVaArg ap(methodID, args); \ 1702 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ 1703 va_end(args); \ 1704 ret = jvalue.get_##ResultType(); \ 1705 return ret;\ 1706 JNI_END \ 1707 \ 1708 \ 1709 JNI_ENTRY(ResultType, \ 1710 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \ 1711 JNIWrapper("Call" XSTR(Result) "MethodV"); \ 1712 \ 1713 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \ 1714 ResultType ret = 0;\ 1715 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \ 1716 (const ResultType&)ret);\ 1717 \ 1718 JavaValue jvalue(Tag); \ 1719 JNI_ArgumentPusherVaArg ap(methodID, args); \ 1720 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ 1721 ret = jvalue.get_##ResultType(); \ 1722 return ret;\ 1723 JNI_END \ 1724 \ 1725 \ 1726 JNI_ENTRY(ResultType, \ 1727 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \ 1728 JNIWrapper("Call" XSTR(Result) "MethodA"); \ 1729 DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \ 1730 ResultType ret = 0;\ 1731 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \ 1732 (const ResultType&)ret);\ 1733 \ 1734 JavaValue jvalue(Tag); \ 1735 JNI_ArgumentPusherArray ap(methodID, args); \ 1736 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ 1737 ret = jvalue.get_##ResultType(); \ 1738 return ret;\ 1739 JNI_END 1740 1741 // the runtime type of subword integral basic types is integer 1742 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN) 1743 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE) 1744 DEFINE_CALLMETHOD(jchar, Char, T_CHAR) 1745 DEFINE_CALLMETHOD(jshort, Short, T_SHORT) 1746 1747 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT) 1748 DEFINE_CALLMETHOD(jint, Int, T_INT) 1749 DEFINE_CALLMETHOD(jlong, Long, T_LONG) 1750 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT) 1751 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE) 1752 1753 DT_VOID_RETURN_MARK_DECL(CallVoidMethod); 1754 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV); 1755 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA); 1756 1757 #else /* USDT2 */ 1758 1759 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \ 1760 , EntryProbe, ReturnProbe) \ 1761 \ 1762 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \ 1763 , ReturnProbe); \ 1764 \ 1765 JNI_ENTRY(ResultType, \ 1766 jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \ 1767 JNIWrapper("Call" XSTR(Result) "Method"); \ 1768 \ 1769 EntryProbe; \ 1770 ResultType ret = 0;\ 1771 DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \ 1772 (const ResultType&)ret);\ 1773 \ 1774 va_list args; \ 1775 va_start(args, methodID); \ 1776 JavaValue jvalue(Tag); \ 1777 JNI_ArgumentPusherVaArg ap(methodID, args); \ 1778 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ 1779 va_end(args); \ 1780 ret = jvalue.get_##ResultType(); \ 1781 return ret;\ 1782 JNI_END 1783 1784 // the runtime type of subword integral basic types is integer 1785 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN 1786 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1787 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref)) 1788 DEFINE_CALLMETHOD(jbyte, Byte, T_BYTE 1789 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1790 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref)) 1791 DEFINE_CALLMETHOD(jchar, Char, T_CHAR 1792 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1793 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref)) 1794 DEFINE_CALLMETHOD(jshort, Short, T_SHORT 1795 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1796 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref)) 1797 1798 DEFINE_CALLMETHOD(jobject, Object, T_OBJECT 1799 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1800 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref)) 1801 DEFINE_CALLMETHOD(jint, Int, T_INT, 1802 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1803 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref)) 1804 DEFINE_CALLMETHOD(jlong, Long, T_LONG 1805 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1806 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref)) 1807 // Float and double probes don't return value because dtrace doesn't currently support it 1808 DEFINE_CALLMETHOD(jfloat, Float, T_FLOAT 1809 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1810 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN()) 1811 DEFINE_CALLMETHOD(jdouble, Double, T_DOUBLE 1812 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1813 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN()) 1814 1815 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \ 1816 , EntryProbe, ReturnProbe) \ 1817 \ 1818 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \ 1819 , ReturnProbe); \ 1820 \ 1821 JNI_ENTRY(ResultType, \ 1822 jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \ 1823 JNIWrapper("Call" XSTR(Result) "MethodV"); \ 1824 \ 1825 EntryProbe;\ 1826 ResultType ret = 0;\ 1827 DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \ 1828 (const ResultType&)ret);\ 1829 \ 1830 JavaValue jvalue(Tag); \ 1831 JNI_ArgumentPusherVaArg ap(methodID, args); \ 1832 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ 1833 ret = jvalue.get_##ResultType(); \ 1834 return ret;\ 1835 JNI_END 1836 1837 // the runtime type of subword integral basic types is integer 1838 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN 1839 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1840 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref)) 1841 DEFINE_CALLMETHODV(jbyte, Byte, T_BYTE 1842 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1843 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref)) 1844 DEFINE_CALLMETHODV(jchar, Char, T_CHAR 1845 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1846 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref)) 1847 DEFINE_CALLMETHODV(jshort, Short, T_SHORT 1848 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1849 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref)) 1850 1851 DEFINE_CALLMETHODV(jobject, Object, T_OBJECT 1852 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1853 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref)) 1854 DEFINE_CALLMETHODV(jint, Int, T_INT, 1855 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1856 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref)) 1857 DEFINE_CALLMETHODV(jlong, Long, T_LONG 1858 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1859 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref)) 1860 // Float and double probes don't return value because dtrace doesn't currently support it 1861 DEFINE_CALLMETHODV(jfloat, Float, T_FLOAT 1862 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1863 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN()) 1864 DEFINE_CALLMETHODV(jdouble, Double, T_DOUBLE 1865 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1866 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN()) 1867 1868 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \ 1869 , EntryProbe, ReturnProbe) \ 1870 \ 1871 DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \ 1872 , ReturnProbe); \ 1873 \ 1874 JNI_ENTRY(ResultType, \ 1875 jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \ 1876 JNIWrapper("Call" XSTR(Result) "MethodA"); \ 1877 EntryProbe; \ 1878 ResultType ret = 0;\ 1879 DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \ 1880 (const ResultType&)ret);\ 1881 \ 1882 JavaValue jvalue(Tag); \ 1883 JNI_ArgumentPusherArray ap(methodID, args); \ 1884 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \ 1885 ret = jvalue.get_##ResultType(); \ 1886 return ret;\ 1887 JNI_END 1888 1889 // the runtime type of subword integral basic types is integer 1890 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN 1891 , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1892 HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref)) 1893 DEFINE_CALLMETHODA(jbyte, Byte, T_BYTE 1894 , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1895 HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref)) 1896 DEFINE_CALLMETHODA(jchar, Char, T_CHAR 1897 , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1898 HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref)) 1899 DEFINE_CALLMETHODA(jshort, Short, T_SHORT 1900 , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1901 HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref)) 1902 1903 DEFINE_CALLMETHODA(jobject, Object, T_OBJECT 1904 , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1905 HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref)) 1906 DEFINE_CALLMETHODA(jint, Int, T_INT, 1907 HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1908 HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref)) 1909 DEFINE_CALLMETHODA(jlong, Long, T_LONG 1910 , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1911 HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref)) 1912 // Float and double probes don't return value because dtrace doesn't currently support it 1913 DEFINE_CALLMETHODA(jfloat, Float, T_FLOAT 1914 , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1915 HOTSPOT_JNI_CALLFLOATMETHOD_RETURN()) 1916 DEFINE_CALLMETHODA(jdouble, Double, T_DOUBLE 1917 , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID), 1918 HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN()) 1919 1920 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN()); 1921 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN()); 1922 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN()); 1923 1924 #endif /* USDT2 */ 1925 1926 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...)) 1927 JNIWrapper("CallVoidMethod"); 1928 #ifndef USDT2 1929 DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID); 1930 #else /* USDT2 */ 1931 HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY( 1932 env, obj, (uintptr_t) methodID); 1933 #endif /* USDT2 */ 1934 DT_VOID_RETURN_MARK(CallVoidMethod); 1935 1936 va_list args; 1937 va_start(args, methodID); 1938 JavaValue jvalue(T_VOID); 1939 JNI_ArgumentPusherVaArg ap(methodID, args); 1940 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); 1941 va_end(args); 1942 JNI_END 1943 1944 1945 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) 1946 JNIWrapper("CallVoidMethodV"); 1947 #ifndef USDT2 1948 DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID); 1949 #else /* USDT2 */ 1950 HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY( 1951 env, obj, (uintptr_t) methodID); 1952 #endif /* USDT2 */ 1953 DT_VOID_RETURN_MARK(CallVoidMethodV); 1954 1955 JavaValue jvalue(T_VOID); 1956 JNI_ArgumentPusherVaArg ap(methodID, args); 1957 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); 1958 JNI_END 1959 1960 1961 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) 1962 JNIWrapper("CallVoidMethodA"); 1963 #ifndef USDT2 1964 DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID); 1965 #else /* USDT2 */ 1966 HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY( 1967 env, obj, (uintptr_t) methodID); 1968 #endif /* USDT2 */ 1969 DT_VOID_RETURN_MARK(CallVoidMethodA); 1970 1971 JavaValue jvalue(T_VOID); 1972 JNI_ArgumentPusherArray ap(methodID, args); 1973 jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK); 1974 JNI_END 1975 1976 1977 #ifndef USDT2 1978 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \ 1979 \ 1980 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\ 1981 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\ 1982 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\ 1983 \ 1984 JNI_ENTRY(ResultType, \ 1985 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \ 1986 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \ 1987 \ 1988 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\ 1989 ResultType ret;\ 1990 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \ 1991 (const ResultType&)ret);\ 1992 \ 1993 va_list args; \ 1994 va_start(args, methodID); \ 1995 JavaValue jvalue(Tag); \ 1996 JNI_ArgumentPusherVaArg ap(methodID, args); \ 1997 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ 1998 va_end(args); \ 1999 ret = jvalue.get_##ResultType(); \ 2000 return ret;\ 2001 JNI_END \ 2002 \ 2003 JNI_ENTRY(ResultType, \ 2004 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \ 2005 JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \ 2006 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\ 2007 ResultType ret;\ 2008 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \ 2009 (const ResultType&)ret);\ 2010 \ 2011 JavaValue jvalue(Tag); \ 2012 JNI_ArgumentPusherVaArg ap(methodID, args); \ 2013 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ 2014 ret = jvalue.get_##ResultType(); \ 2015 return ret;\ 2016 JNI_END \ 2017 \ 2018 JNI_ENTRY(ResultType, \ 2019 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \ 2020 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \ 2021 DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\ 2022 ResultType ret;\ 2023 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \ 2024 (const ResultType&)ret);\ 2025 \ 2026 JavaValue jvalue(Tag); \ 2027 JNI_ArgumentPusherArray ap(methodID, args); \ 2028 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ 2029 ret = jvalue.get_##ResultType(); \ 2030 return ret;\ 2031 JNI_END 2032 2033 // the runtime type of subword integral basic types is integer 2034 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN) 2035 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE) 2036 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR) 2037 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT) 2038 2039 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT) 2040 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT) 2041 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG) 2042 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT) 2043 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE) 2044 2045 2046 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod); 2047 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV); 2048 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA); 2049 2050 #else /* USDT2 */ 2051 2052 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \ 2053 , EntryProbe, ReturnProbe) \ 2054 \ 2055 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \ 2056 , ReturnProbe);\ 2057 \ 2058 JNI_ENTRY(ResultType, \ 2059 jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \ 2060 JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \ 2061 \ 2062 EntryProbe;\ 2063 ResultType ret;\ 2064 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \ 2065 (const ResultType&)ret);\ 2066 \ 2067 va_list args; \ 2068 va_start(args, methodID); \ 2069 JavaValue jvalue(Tag); \ 2070 JNI_ArgumentPusherVaArg ap(methodID, args); \ 2071 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ 2072 va_end(args); \ 2073 ret = jvalue.get_##ResultType(); \ 2074 return ret;\ 2075 JNI_END 2076 2077 // the runtime type of subword integral basic types is integer 2078 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN 2079 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2080 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref)) 2081 DEFINE_CALLNONVIRTUALMETHOD(jbyte, Byte, T_BYTE 2082 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2083 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref)) 2084 DEFINE_CALLNONVIRTUALMETHOD(jchar, Char, T_CHAR 2085 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2086 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref)) 2087 DEFINE_CALLNONVIRTUALMETHOD(jshort, Short, T_SHORT 2088 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2089 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref)) 2090 2091 DEFINE_CALLNONVIRTUALMETHOD(jobject, Object, T_OBJECT 2092 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2093 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref)) 2094 DEFINE_CALLNONVIRTUALMETHOD(jint, Int, T_INT 2095 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2096 HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref)) 2097 DEFINE_CALLNONVIRTUALMETHOD(jlong, Long, T_LONG 2098 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2099 // Float and double probes don't return value because dtrace doesn't currently support it 2100 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref)) 2101 DEFINE_CALLNONVIRTUALMETHOD(jfloat, Float, T_FLOAT 2102 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2103 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN()) 2104 DEFINE_CALLNONVIRTUALMETHOD(jdouble, Double, T_DOUBLE 2105 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID), 2106 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN()) 2107 2108 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \ 2109 , EntryProbe, ReturnProbe) \ 2110 \ 2111 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \ 2112 , ReturnProbe);\ 2113 \ 2114 JNI_ENTRY(ResultType, \ 2115 jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \ 2116 JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \ 2117 \ 2118 EntryProbe;\ 2119 ResultType ret;\ 2120 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \ 2121 (const ResultType&)ret);\ 2122 \ 2123 JavaValue jvalue(Tag); \ 2124 JNI_ArgumentPusherVaArg ap(methodID, args); \ 2125 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ 2126 ret = jvalue.get_##ResultType(); \ 2127 return ret;\ 2128 JNI_END 2129 2130 // the runtime type of subword integral basic types is integer 2131 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN 2132 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2133 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref)) 2134 DEFINE_CALLNONVIRTUALMETHODV(jbyte, Byte, T_BYTE 2135 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2136 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref)) 2137 DEFINE_CALLNONVIRTUALMETHODV(jchar, Char, T_CHAR 2138 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2139 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref)) 2140 DEFINE_CALLNONVIRTUALMETHODV(jshort, Short, T_SHORT 2141 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2142 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref)) 2143 2144 DEFINE_CALLNONVIRTUALMETHODV(jobject, Object, T_OBJECT 2145 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2146 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref)) 2147 DEFINE_CALLNONVIRTUALMETHODV(jint, Int, T_INT 2148 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2149 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref)) 2150 DEFINE_CALLNONVIRTUALMETHODV(jlong, Long, T_LONG 2151 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2152 // Float and double probes don't return value because dtrace doesn't currently support it 2153 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref)) 2154 DEFINE_CALLNONVIRTUALMETHODV(jfloat, Float, T_FLOAT 2155 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2156 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN()) 2157 DEFINE_CALLNONVIRTUALMETHODV(jdouble, Double, T_DOUBLE 2158 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID), 2159 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN()) 2160 2161 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \ 2162 , EntryProbe, ReturnProbe) \ 2163 \ 2164 DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \ 2165 , ReturnProbe);\ 2166 \ 2167 JNI_ENTRY(ResultType, \ 2168 jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \ 2169 JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \ 2170 \ 2171 EntryProbe;\ 2172 ResultType ret;\ 2173 DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \ 2174 (const ResultType&)ret);\ 2175 \ 2176 JavaValue jvalue(Tag); \ 2177 JNI_ArgumentPusherArray ap(methodID, args); \ 2178 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \ 2179 ret = jvalue.get_##ResultType(); \ 2180 return ret;\ 2181 JNI_END 2182 2183 // the runtime type of subword integral basic types is integer 2184 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN 2185 , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2186 HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref)) 2187 DEFINE_CALLNONVIRTUALMETHODA(jbyte, Byte, T_BYTE 2188 , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2189 HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref)) 2190 DEFINE_CALLNONVIRTUALMETHODA(jchar, Char, T_CHAR 2191 , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2192 HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref)) 2193 DEFINE_CALLNONVIRTUALMETHODA(jshort, Short, T_SHORT 2194 , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2195 HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref)) 2196 2197 DEFINE_CALLNONVIRTUALMETHODA(jobject, Object, T_OBJECT 2198 , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2199 HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref)) 2200 DEFINE_CALLNONVIRTUALMETHODA(jint, Int, T_INT 2201 , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2202 HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref)) 2203 DEFINE_CALLNONVIRTUALMETHODA(jlong, Long, T_LONG 2204 , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2205 // Float and double probes don't return value because dtrace doesn't currently support it 2206 HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref)) 2207 DEFINE_CALLNONVIRTUALMETHODA(jfloat, Float, T_FLOAT 2208 , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2209 HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN()) 2210 DEFINE_CALLNONVIRTUALMETHODA(jdouble, Double, T_DOUBLE 2211 , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID), 2212 HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN()) 2213 2214 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod 2215 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN()); 2216 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV 2217 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN()); 2218 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA 2219 , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN()); 2220 #endif /* USDT2 */ 2221 2222 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) 2223 JNIWrapper("CallNonvirtualVoidMethod"); 2224 2225 #ifndef USDT2 2226 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry, 2227 env, obj, cls, methodID); 2228 #else /* USDT2 */ 2229 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY( 2230 env, obj, cls, (uintptr_t) methodID); 2231 #endif /* USDT2 */ 2232 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod); 2233 2234 va_list args; 2235 va_start(args, methodID); 2236 JavaValue jvalue(T_VOID); 2237 JNI_ArgumentPusherVaArg ap(methodID, args); 2238 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); 2239 va_end(args); 2240 JNI_END 2241 2242 2243 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) 2244 JNIWrapper("CallNonvirtualVoidMethodV"); 2245 2246 #ifndef USDT2 2247 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry, 2248 env, obj, cls, methodID); 2249 #else /* USDT2 */ 2250 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY( 2251 env, obj, cls, (uintptr_t) methodID); 2252 #endif /* USDT2 */ 2253 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV); 2254 2255 JavaValue jvalue(T_VOID); 2256 JNI_ArgumentPusherVaArg ap(methodID, args); 2257 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); 2258 JNI_END 2259 2260 2261 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) 2262 JNIWrapper("CallNonvirtualVoidMethodA"); 2263 #ifndef USDT2 2264 DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry, 2265 env, obj, cls, methodID); 2266 #else /* USDT2 */ 2267 HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY( 2268 env, obj, cls, (uintptr_t) methodID); 2269 #endif /* USDT2 */ 2270 DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA); 2271 JavaValue jvalue(T_VOID); 2272 JNI_ArgumentPusherArray ap(methodID, args); 2273 jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK); 2274 JNI_END 2275 2276 2277 #ifndef USDT2 2278 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \ 2279 \ 2280 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\ 2281 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\ 2282 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\ 2283 \ 2284 JNI_ENTRY(ResultType, \ 2285 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \ 2286 JNIWrapper("CallStatic" XSTR(Result) "Method"); \ 2287 \ 2288 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\ 2289 ResultType ret = 0;\ 2290 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \ 2291 (const ResultType&)ret);\ 2292 \ 2293 va_list args; \ 2294 va_start(args, methodID); \ 2295 JavaValue jvalue(Tag); \ 2296 JNI_ArgumentPusherVaArg ap(methodID, args); \ 2297 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ 2298 va_end(args); \ 2299 ret = jvalue.get_##ResultType(); \ 2300 return ret;\ 2301 JNI_END \ 2302 \ 2303 JNI_ENTRY(ResultType, \ 2304 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \ 2305 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \ 2306 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\ 2307 ResultType ret = 0;\ 2308 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \ 2309 (const ResultType&)ret);\ 2310 \ 2311 JavaValue jvalue(Tag); \ 2312 JNI_ArgumentPusherVaArg ap(methodID, args); \ 2313 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ 2314 ret = jvalue.get_##ResultType(); \ 2315 return ret;\ 2316 JNI_END \ 2317 \ 2318 JNI_ENTRY(ResultType, \ 2319 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \ 2320 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \ 2321 DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\ 2322 ResultType ret = 0;\ 2323 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \ 2324 (const ResultType&)ret);\ 2325 \ 2326 JavaValue jvalue(Tag); \ 2327 JNI_ArgumentPusherArray ap(methodID, args); \ 2328 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ 2329 ret = jvalue.get_##ResultType(); \ 2330 return ret;\ 2331 JNI_END 2332 2333 // the runtime type of subword integral basic types is integer 2334 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN) 2335 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE) 2336 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR) 2337 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT) 2338 2339 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT) 2340 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT) 2341 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG) 2342 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT) 2343 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE) 2344 2345 2346 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod); 2347 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV); 2348 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA); 2349 2350 #else /* USDT2 */ 2351 2352 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \ 2353 , EntryProbe, ResultProbe) \ 2354 \ 2355 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \ 2356 , ResultProbe); \ 2357 \ 2358 JNI_ENTRY(ResultType, \ 2359 jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \ 2360 JNIWrapper("CallStatic" XSTR(Result) "Method"); \ 2361 \ 2362 EntryProbe; \ 2363 ResultType ret = 0;\ 2364 DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \ 2365 (const ResultType&)ret);\ 2366 \ 2367 va_list args; \ 2368 va_start(args, methodID); \ 2369 JavaValue jvalue(Tag); \ 2370 JNI_ArgumentPusherVaArg ap(methodID, args); \ 2371 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ 2372 va_end(args); \ 2373 ret = jvalue.get_##ResultType(); \ 2374 return ret;\ 2375 JNI_END 2376 2377 // the runtime type of subword integral basic types is integer 2378 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN 2379 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2380 HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref)); 2381 DEFINE_CALLSTATICMETHOD(jbyte, Byte, T_BYTE 2382 , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2383 HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref)); 2384 DEFINE_CALLSTATICMETHOD(jchar, Char, T_CHAR 2385 , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2386 HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref)); 2387 DEFINE_CALLSTATICMETHOD(jshort, Short, T_SHORT 2388 , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2389 HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref)); 2390 2391 DEFINE_CALLSTATICMETHOD(jobject, Object, T_OBJECT 2392 , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2393 HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref)); 2394 DEFINE_CALLSTATICMETHOD(jint, Int, T_INT 2395 , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2396 HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref)); 2397 DEFINE_CALLSTATICMETHOD(jlong, Long, T_LONG 2398 , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2399 HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref)); 2400 // Float and double probes don't return value because dtrace doesn't currently support it 2401 DEFINE_CALLSTATICMETHOD(jfloat, Float, T_FLOAT 2402 , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2403 HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN()); 2404 DEFINE_CALLSTATICMETHOD(jdouble, Double, T_DOUBLE 2405 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID), 2406 HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN()); 2407 2408 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \ 2409 , EntryProbe, ResultProbe) \ 2410 \ 2411 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \ 2412 , ResultProbe); \ 2413 \ 2414 JNI_ENTRY(ResultType, \ 2415 jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \ 2416 JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \ 2417 \ 2418 EntryProbe; \ 2419 ResultType ret = 0;\ 2420 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \ 2421 (const ResultType&)ret);\ 2422 \ 2423 JavaValue jvalue(Tag); \ 2424 JNI_ArgumentPusherVaArg ap(methodID, args); \ 2425 /* Make sure class is initialized before trying to invoke its method */ \ 2426 KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \ 2427 k()->initialize(CHECK_0); \ 2428 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ 2429 va_end(args); \ 2430 ret = jvalue.get_##ResultType(); \ 2431 return ret;\ 2432 JNI_END 2433 2434 // the runtime type of subword integral basic types is integer 2435 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN 2436 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2437 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref)); 2438 DEFINE_CALLSTATICMETHODV(jbyte, Byte, T_BYTE 2439 , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2440 HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref)); 2441 DEFINE_CALLSTATICMETHODV(jchar, Char, T_CHAR 2442 , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2443 HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref)); 2444 DEFINE_CALLSTATICMETHODV(jshort, Short, T_SHORT 2445 , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2446 HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref)); 2447 2448 DEFINE_CALLSTATICMETHODV(jobject, Object, T_OBJECT 2449 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2450 HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref)); 2451 DEFINE_CALLSTATICMETHODV(jint, Int, T_INT 2452 , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2453 HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref)); 2454 DEFINE_CALLSTATICMETHODV(jlong, Long, T_LONG 2455 , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2456 HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref)); 2457 // Float and double probes don't return value because dtrace doesn't currently support it 2458 DEFINE_CALLSTATICMETHODV(jfloat, Float, T_FLOAT 2459 , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2460 HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN()); 2461 DEFINE_CALLSTATICMETHODV(jdouble, Double, T_DOUBLE 2462 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID), 2463 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN()); 2464 2465 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \ 2466 , EntryProbe, ResultProbe) \ 2467 \ 2468 DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \ 2469 , ResultProbe); \ 2470 \ 2471 JNI_ENTRY(ResultType, \ 2472 jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \ 2473 JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \ 2474 \ 2475 EntryProbe; \ 2476 ResultType ret = 0;\ 2477 DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \ 2478 (const ResultType&)ret);\ 2479 \ 2480 JavaValue jvalue(Tag); \ 2481 JNI_ArgumentPusherArray ap(methodID, args); \ 2482 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \ 2483 ret = jvalue.get_##ResultType(); \ 2484 return ret;\ 2485 JNI_END 2486 2487 // the runtime type of subword integral basic types is integer 2488 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN 2489 , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2490 HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref)); 2491 DEFINE_CALLSTATICMETHODA(jbyte, Byte, T_BYTE 2492 , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2493 HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref)); 2494 DEFINE_CALLSTATICMETHODA(jchar, Char, T_CHAR 2495 , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2496 HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref)); 2497 DEFINE_CALLSTATICMETHODA(jshort, Short, T_SHORT 2498 , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2499 HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref)); 2500 2501 DEFINE_CALLSTATICMETHODA(jobject, Object, T_OBJECT 2502 , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2503 HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref)); 2504 DEFINE_CALLSTATICMETHODA(jint, Int, T_INT 2505 , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2506 HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref)); 2507 DEFINE_CALLSTATICMETHODA(jlong, Long, T_LONG 2508 , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2509 HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref)); 2510 // Float and double probes don't return value because dtrace doesn't currently support it 2511 DEFINE_CALLSTATICMETHODA(jfloat, Float, T_FLOAT 2512 , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2513 HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN()); 2514 DEFINE_CALLSTATICMETHODA(jdouble, Double, T_DOUBLE 2515 , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID), 2516 HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN()); 2517 2518 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod 2519 , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN()); 2520 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV 2521 , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN()); 2522 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA 2523 , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN()); 2524 #endif /* USDT2 */ 2525 2526 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...)) 2527 JNIWrapper("CallStaticVoidMethod"); 2528 #ifndef USDT2 2529 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID); 2530 #else /* USDT2 */ 2531 HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY( 2532 env, cls, (uintptr_t) methodID); 2533 #endif /* USDT2 */ 2534 DT_VOID_RETURN_MARK(CallStaticVoidMethod); 2535 2536 va_list args; 2537 va_start(args, methodID); 2538 JavaValue jvalue(T_VOID); 2539 JNI_ArgumentPusherVaArg ap(methodID, args); 2540 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); 2541 va_end(args); 2542 JNI_END 2543 2544 2545 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) 2546 JNIWrapper("CallStaticVoidMethodV"); 2547 #ifndef USDT2 2548 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID); 2549 #else /* USDT2 */ 2550 HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY( 2551 env, cls, (uintptr_t) methodID); 2552 #endif /* USDT2 */ 2553 DT_VOID_RETURN_MARK(CallStaticVoidMethodV); 2554 2555 JavaValue jvalue(T_VOID); 2556 JNI_ArgumentPusherVaArg ap(methodID, args); 2557 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); 2558 JNI_END 2559 2560 2561 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) 2562 JNIWrapper("CallStaticVoidMethodA"); 2563 #ifndef USDT2 2564 DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID); 2565 #else /* USDT2 */ 2566 HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY( 2567 env, cls, (uintptr_t) methodID); 2568 #endif /* USDT2 */ 2569 DT_VOID_RETURN_MARK(CallStaticVoidMethodA); 2570 2571 JavaValue jvalue(T_VOID); 2572 JNI_ArgumentPusherArray ap(methodID, args); 2573 jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK); 2574 JNI_END 2575 2576 2577 // 2578 // Accessing Fields 2579 // 2580 2581 2582 #ifndef USDT2 2583 DT_RETURN_MARK_DECL(GetFieldID, jfieldID); 2584 #else /* USDT2 */ 2585 DT_RETURN_MARK_DECL(GetFieldID, jfieldID 2586 , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref)); 2587 #endif /* USDT2 */ 2588 2589 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz, 2590 const char *name, const char *sig)) 2591 JNIWrapper("GetFieldID"); 2592 #ifndef USDT2 2593 DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig); 2594 #else /* USDT2 */ 2595 HOTSPOT_JNI_GETFIELDID_ENTRY( 2596 env, clazz, (char *) name, (char *) sig); 2597 #endif /* USDT2 */ 2598 jfieldID ret = 0; 2599 DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret); 2600 2601 // The class should have been loaded (we have an instance of the class 2602 // passed in) so the field and signature should already be in the symbol 2603 // table. If they're not there, the field doesn't exist. 2604 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); 2605 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); 2606 if (fieldname == NULL || signame == NULL) { 2607 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); 2608 } 2609 KlassHandle k(THREAD, 2610 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); 2611 // Make sure class is initialized before handing id's out to fields 2612 k()->initialize(CHECK_NULL); 2613 2614 fieldDescriptor fd; 2615 if (!k()->oop_is_instance() || 2616 !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) { 2617 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); 2618 } 2619 2620 // A jfieldID for a non-static field is simply the offset of the field within the instanceOop 2621 // It may also have hash bits for k, if VerifyJNIFields is turned on. 2622 ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset()); 2623 return ret; 2624 JNI_END 2625 2626 2627 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID)) 2628 JNIWrapper("GetObjectField"); 2629 #ifndef USDT2 2630 DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID); 2631 #else /* USDT2 */ 2632 HOTSPOT_JNI_GETOBJECTFIELD_ENTRY( 2633 env, obj, (uintptr_t) fieldID); 2634 #endif /* USDT2 */ 2635 oop o = JNIHandles::resolve_non_null(obj); 2636 Klass* k = o->klass(); 2637 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); 2638 // Keep JVMTI addition small and only check enabled flag here. 2639 // jni_GetField_probe() assumes that is okay to create handles. 2640 if (JvmtiExport::should_post_field_access()) { 2641 o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false); 2642 } 2643 jobject ret = JNIHandles::make_local(env, o->obj_field(offset)); 2644 #ifndef SERIALGC 2645 // If G1 is enabled and we are accessing the value of the referent 2646 // field in a reference object then we need to register a non-null 2647 // referent with the SATB barrier. 2648 if (UseG1GC) { 2649 bool needs_barrier = false; 2650 2651 if (ret != NULL && 2652 offset == java_lang_ref_Reference::referent_offset && 2653 InstanceKlass::cast(k)->reference_type() != REF_NONE) { 2654 assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity"); 2655 needs_barrier = true; 2656 } 2657 2658 if (needs_barrier) { 2659 oop referent = JNIHandles::resolve(ret); 2660 G1SATBCardTableModRefBS::enqueue(referent); 2661 } 2662 } 2663 #endif // SERIALGC 2664 #ifndef USDT2 2665 DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret); 2666 #else /* USDT2 */ 2667 HOTSPOT_JNI_GETOBJECTFIELD_RETURN( 2668 ret); 2669 #endif /* USDT2 */ 2670 return ret; 2671 JNI_END 2672 2673 2674 #ifndef USDT2 2675 #define DEFINE_GETFIELD(Return,Fieldname,Result) \ 2676 \ 2677 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\ 2678 \ 2679 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \ 2680 JNIWrapper("Get" XSTR(Result) "Field"); \ 2681 \ 2682 DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\ 2683 Return ret = 0;\ 2684 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\ 2685 \ 2686 oop o = JNIHandles::resolve_non_null(obj); \ 2687 Klass* k = o->klass(); \ 2688 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ 2689 /* Keep JVMTI addition small and only check enabled flag here. */ \ 2690 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \ 2691 /* and creates a ResetNoHandleMark. */ \ 2692 if (JvmtiExport::should_post_field_access()) { \ 2693 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \ 2694 } \ 2695 ret = o->Fieldname##_field(offset); \ 2696 return ret; \ 2697 JNI_END 2698 2699 DEFINE_GETFIELD(jboolean, bool, Boolean) 2700 DEFINE_GETFIELD(jbyte, byte, Byte) 2701 DEFINE_GETFIELD(jchar, char, Char) 2702 DEFINE_GETFIELD(jshort, short, Short) 2703 DEFINE_GETFIELD(jint, int, Int) 2704 DEFINE_GETFIELD(jlong, long, Long) 2705 DEFINE_GETFIELD(jfloat, float, Float) 2706 DEFINE_GETFIELD(jdouble, double, Double) 2707 2708 #else /* USDT2 */ 2709 2710 #define DEFINE_GETFIELD(Return,Fieldname,Result \ 2711 , EntryProbe, ReturnProbe) \ 2712 \ 2713 DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \ 2714 , ReturnProbe); \ 2715 \ 2716 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \ 2717 JNIWrapper("Get" XSTR(Result) "Field"); \ 2718 \ 2719 EntryProbe; \ 2720 Return ret = 0;\ 2721 DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\ 2722 \ 2723 oop o = JNIHandles::resolve_non_null(obj); \ 2724 Klass* k = o->klass(); \ 2725 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ 2726 /* Keep JVMTI addition small and only check enabled flag here. */ \ 2727 /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \ 2728 /* and creates a ResetNoHandleMark. */ \ 2729 if (JvmtiExport::should_post_field_access()) { \ 2730 o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \ 2731 } \ 2732 ret = o->Fieldname##_field(offset); \ 2733 return ret; \ 2734 JNI_END 2735 2736 DEFINE_GETFIELD(jboolean, bool, Boolean 2737 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2738 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref)) 2739 DEFINE_GETFIELD(jbyte, byte, Byte 2740 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2741 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref)) 2742 DEFINE_GETFIELD(jchar, char, Char 2743 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2744 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref)) 2745 DEFINE_GETFIELD(jshort, short, Short 2746 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2747 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref)) 2748 DEFINE_GETFIELD(jint, int, Int 2749 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2750 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref)) 2751 DEFINE_GETFIELD(jlong, long, Long 2752 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2753 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref)) 2754 // Float and double probes don't return value because dtrace doesn't currently support it 2755 DEFINE_GETFIELD(jfloat, float, Float 2756 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2757 HOTSPOT_JNI_GETFLOATFIELD_RETURN()) 2758 DEFINE_GETFIELD(jdouble, double, Double 2759 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2760 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN()) 2761 #endif /* USDT2 */ 2762 2763 address jni_GetBooleanField_addr() { 2764 return (address)jni_GetBooleanField; 2765 } 2766 address jni_GetByteField_addr() { 2767 return (address)jni_GetByteField; 2768 } 2769 address jni_GetCharField_addr() { 2770 return (address)jni_GetCharField; 2771 } 2772 address jni_GetShortField_addr() { 2773 return (address)jni_GetShortField; 2774 } 2775 address jni_GetIntField_addr() { 2776 return (address)jni_GetIntField; 2777 } 2778 address jni_GetLongField_addr() { 2779 return (address)jni_GetLongField; 2780 } 2781 address jni_GetFloatField_addr() { 2782 return (address)jni_GetFloatField; 2783 } 2784 address jni_GetDoubleField_addr() { 2785 return (address)jni_GetDoubleField; 2786 } 2787 2788 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value)) 2789 JNIWrapper("SetObjectField"); 2790 #ifndef USDT2 2791 DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value); 2792 #else /* USDT2 */ 2793 HOTSPOT_JNI_SETOBJECTFIELD_ENTRY( 2794 env, obj, (uintptr_t) fieldID, value); 2795 #endif /* USDT2 */ 2796 oop o = JNIHandles::resolve_non_null(obj); 2797 Klass* k = o->klass(); 2798 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); 2799 // Keep JVMTI addition small and only check enabled flag here. 2800 // jni_SetField_probe_nh() assumes that is not okay to create handles 2801 // and creates a ResetNoHandleMark. 2802 if (JvmtiExport::should_post_field_modification()) { 2803 jvalue field_value; 2804 field_value.l = value; 2805 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value); 2806 } 2807 o->obj_field_put(offset, JNIHandles::resolve(value)); 2808 #ifndef USDT2 2809 DTRACE_PROBE(hotspot_jni, SetObjectField__return); 2810 #else /* USDT2 */ 2811 HOTSPOT_JNI_SETOBJECTFIELD_RETURN( 2812 ); 2813 #endif /* USDT2 */ 2814 JNI_END 2815 2816 #ifndef USDT2 2817 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \ 2818 \ 2819 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \ 2820 JNIWrapper("Set" XSTR(Result) "Field"); \ 2821 \ 2822 FP_SELECT_##Result( \ 2823 DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \ 2824 DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \ 2825 \ 2826 oop o = JNIHandles::resolve_non_null(obj); \ 2827 Klass* k = o->klass(); \ 2828 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ 2829 /* Keep JVMTI addition small and only check enabled flag here. */ \ 2830 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \ 2831 /* and creates a ResetNoHandleMark. */ \ 2832 if (JvmtiExport::should_post_field_modification()) { \ 2833 jvalue field_value; \ 2834 field_value.unionType = value; \ 2835 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \ 2836 } \ 2837 o->Fieldname##_field_put(offset, value); \ 2838 DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\ 2839 JNI_END 2840 2841 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z) 2842 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b) 2843 DEFINE_SETFIELD(jchar, char, Char, 'C', c) 2844 DEFINE_SETFIELD(jshort, short, Short, 'S', s) 2845 DEFINE_SETFIELD(jint, int, Int, 'I', i) 2846 DEFINE_SETFIELD(jlong, long, Long, 'J', j) 2847 DEFINE_SETFIELD(jfloat, float, Float, 'F', f) 2848 DEFINE_SETFIELD(jdouble, double, Double, 'D', d) 2849 2850 #else /* USDT2 */ 2851 2852 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \ 2853 , EntryProbe, ReturnProbe) \ 2854 \ 2855 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \ 2856 JNIWrapper("Set" XSTR(Result) "Field"); \ 2857 \ 2858 EntryProbe; \ 2859 \ 2860 oop o = JNIHandles::resolve_non_null(obj); \ 2861 Klass* k = o->klass(); \ 2862 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); \ 2863 /* Keep JVMTI addition small and only check enabled flag here. */ \ 2864 /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \ 2865 /* and creates a ResetNoHandleMark. */ \ 2866 if (JvmtiExport::should_post_field_modification()) { \ 2867 jvalue field_value; \ 2868 field_value.unionType = value; \ 2869 o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \ 2870 } \ 2871 o->Fieldname##_field_put(offset, value); \ 2872 ReturnProbe; \ 2873 JNI_END 2874 2875 DEFINE_SETFIELD(jboolean, bool, Boolean, 'Z', z 2876 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), 2877 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN()) 2878 DEFINE_SETFIELD(jbyte, byte, Byte, 'B', b 2879 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), 2880 HOTSPOT_JNI_SETBYTEFIELD_RETURN()) 2881 DEFINE_SETFIELD(jchar, char, Char, 'C', c 2882 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), 2883 HOTSPOT_JNI_SETCHARFIELD_RETURN()) 2884 DEFINE_SETFIELD(jshort, short, Short, 'S', s 2885 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), 2886 HOTSPOT_JNI_SETSHORTFIELD_RETURN()) 2887 DEFINE_SETFIELD(jint, int, Int, 'I', i 2888 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), 2889 HOTSPOT_JNI_SETINTFIELD_RETURN()) 2890 DEFINE_SETFIELD(jlong, long, Long, 'J', j 2891 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value), 2892 HOTSPOT_JNI_SETLONGFIELD_RETURN()) 2893 // Float and double probes don't return value because dtrace doesn't currently support it 2894 DEFINE_SETFIELD(jfloat, float, Float, 'F', f 2895 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2896 HOTSPOT_JNI_SETFLOATFIELD_RETURN()) 2897 DEFINE_SETFIELD(jdouble, double, Double, 'D', d 2898 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID), 2899 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN()) 2900 #endif /* USDT2 */ 2901 2902 #ifndef USDT2 2903 DT_RETURN_MARK_DECL(ToReflectedField, jobject); 2904 #else /* USDT2 */ 2905 DT_RETURN_MARK_DECL(ToReflectedField, jobject 2906 , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref)); 2907 #endif /* USDT2 */ 2908 2909 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic)) 2910 JNIWrapper("ToReflectedField"); 2911 #ifndef USDT2 2912 DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry, 2913 env, cls, fieldID, isStatic); 2914 #else /* USDT2 */ 2915 HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY( 2916 env, cls, (uintptr_t) fieldID, isStatic); 2917 #endif /* USDT2 */ 2918 jobject ret = NULL; 2919 DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret); 2920 2921 fieldDescriptor fd; 2922 bool found = false; 2923 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls)); 2924 2925 assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID"); 2926 2927 if (isStatic) { 2928 // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*. 2929 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); 2930 assert(id->is_static_field_id(), "invalid static field id"); 2931 found = id->find_local_field(&fd); 2932 } else { 2933 // Non-static field. The fieldID is really the offset of the field within the instanceOop. 2934 int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID); 2935 found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd); 2936 } 2937 assert(found, "bad fieldID passed into jni_ToReflectedField"); 2938 oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL); 2939 ret = JNIHandles::make_local(env, reflected); 2940 return ret; 2941 JNI_END 2942 2943 2944 // 2945 // Accessing Static Fields 2946 // 2947 #ifndef USDT2 2948 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID); 2949 #else /* USDT2 */ 2950 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID 2951 , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref)); 2952 #endif /* USDT2 */ 2953 2954 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz, 2955 const char *name, const char *sig)) 2956 JNIWrapper("GetStaticFieldID"); 2957 #ifndef USDT2 2958 DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig); 2959 #else /* USDT2 */ 2960 HOTSPOT_JNI_GETSTATICFIELDID_ENTRY( 2961 env, clazz, (char *) name, (char *) sig); 2962 #endif /* USDT2 */ 2963 jfieldID ret = NULL; 2964 DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret); 2965 2966 // The class should have been loaded (we have an instance of the class 2967 // passed in) so the field and signature should already be in the symbol 2968 // table. If they're not there, the field doesn't exist. 2969 TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name)); 2970 TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig)); 2971 if (fieldname == NULL || signame == NULL) { 2972 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); 2973 } 2974 KlassHandle k(THREAD, 2975 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); 2976 // Make sure class is initialized before handing id's out to static fields 2977 k()->initialize(CHECK_NULL); 2978 2979 fieldDescriptor fd; 2980 if (!k()->oop_is_instance() || 2981 !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) { 2982 THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name); 2983 } 2984 2985 // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass* 2986 JNIid* id = fd.field_holder()->jni_id_for(fd.offset()); 2987 debug_only(id->set_is_static_field_id();) 2988 2989 debug_only(id->verify(fd.field_holder())); 2990 2991 ret = jfieldIDWorkaround::to_static_jfieldID(id); 2992 return ret; 2993 JNI_END 2994 2995 2996 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID)) 2997 JNIWrapper("GetStaticObjectField"); 2998 #ifndef USDT2 2999 DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID); 3000 #else /* USDT2 */ 3001 HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY( 3002 env, clazz, (uintptr_t) fieldID); 3003 #endif /* USDT2 */ 3004 #if INCLUDE_JNI_CHECK 3005 DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);) 3006 #endif // INCLUDE_JNI_CHECK 3007 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); 3008 assert(id->is_static_field_id(), "invalid static field id"); 3009 // Keep JVMTI addition small and only check enabled flag here. 3010 // jni_GetField_probe() assumes that is okay to create handles. 3011 if (JvmtiExport::should_post_field_access()) { 3012 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); 3013 } 3014 jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset())); 3015 #ifndef USDT2 3016 DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret); 3017 #else /* USDT2 */ 3018 HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN( 3019 ret); 3020 #endif /* USDT2 */ 3021 return ret; 3022 JNI_END 3023 3024 #ifndef USDT2 3025 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \ 3026 \ 3027 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\ 3028 \ 3029 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \ 3030 JNIWrapper("GetStatic" XSTR(Result) "Field"); \ 3031 DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\ 3032 Return ret = 0;\ 3033 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \ 3034 (const Return&)ret);\ 3035 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ 3036 assert(id->is_static_field_id(), "invalid static field id"); \ 3037 /* Keep JVMTI addition small and only check enabled flag here. */ \ 3038 /* jni_GetField_probe() assumes that is okay to create handles. */ \ 3039 if (JvmtiExport::should_post_field_access()) { \ 3040 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \ 3041 } \ 3042 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \ 3043 return ret;\ 3044 JNI_END 3045 3046 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean) 3047 DEFINE_GETSTATICFIELD(jbyte, byte, Byte) 3048 DEFINE_GETSTATICFIELD(jchar, char, Char) 3049 DEFINE_GETSTATICFIELD(jshort, short, Short) 3050 DEFINE_GETSTATICFIELD(jint, int, Int) 3051 DEFINE_GETSTATICFIELD(jlong, long, Long) 3052 DEFINE_GETSTATICFIELD(jfloat, float, Float) 3053 DEFINE_GETSTATICFIELD(jdouble, double, Double) 3054 3055 #else /* USDT2 */ 3056 3057 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \ 3058 , EntryProbe, ReturnProbe) \ 3059 \ 3060 DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \ 3061 , ReturnProbe); \ 3062 \ 3063 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \ 3064 JNIWrapper("GetStatic" XSTR(Result) "Field"); \ 3065 EntryProbe; \ 3066 Return ret = 0;\ 3067 DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \ 3068 (const Return&)ret);\ 3069 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ 3070 assert(id->is_static_field_id(), "invalid static field id"); \ 3071 /* Keep JVMTI addition small and only check enabled flag here. */ \ 3072 /* jni_GetField_probe() assumes that is okay to create handles. */ \ 3073 if (JvmtiExport::should_post_field_access()) { \ 3074 JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \ 3075 } \ 3076 ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \ 3077 return ret;\ 3078 JNI_END 3079 3080 DEFINE_GETSTATICFIELD(jboolean, bool, Boolean 3081 , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref)) 3082 DEFINE_GETSTATICFIELD(jbyte, byte, Byte 3083 , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref) ) 3084 DEFINE_GETSTATICFIELD(jchar, char, Char 3085 , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref) ) 3086 DEFINE_GETSTATICFIELD(jshort, short, Short 3087 , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref) ) 3088 DEFINE_GETSTATICFIELD(jint, int, Int 3089 , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref) ) 3090 DEFINE_GETSTATICFIELD(jlong, long, Long 3091 , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref) ) 3092 // Float and double probes don't return value because dtrace doesn't currently support it 3093 DEFINE_GETSTATICFIELD(jfloat, float, Float 3094 , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN() ) 3095 DEFINE_GETSTATICFIELD(jdouble, double, Double 3096 , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN() ) 3097 #endif /* USDT2 */ 3098 3099 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value)) 3100 JNIWrapper("SetStaticObjectField"); 3101 #ifndef USDT2 3102 DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value); 3103 #else /* USDT2 */ 3104 HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY( 3105 env, clazz, (uintptr_t) fieldID, value); 3106 #endif /* USDT2 */ 3107 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); 3108 assert(id->is_static_field_id(), "invalid static field id"); 3109 // Keep JVMTI addition small and only check enabled flag here. 3110 // jni_SetField_probe() assumes that is okay to create handles. 3111 if (JvmtiExport::should_post_field_modification()) { 3112 jvalue field_value; 3113 field_value.l = value; 3114 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value); 3115 } 3116 id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value)); 3117 #ifndef USDT2 3118 DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return); 3119 #else /* USDT2 */ 3120 HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN( 3121 ); 3122 #endif /* USDT2 */ 3123 JNI_END 3124 3125 3126 #ifndef USDT2 3127 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \ 3128 \ 3129 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \ 3130 JNIWrapper("SetStatic" XSTR(Result) "Field"); \ 3131 FP_SELECT_##Result( \ 3132 DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \ 3133 DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \ 3134 \ 3135 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ 3136 assert(id->is_static_field_id(), "invalid static field id"); \ 3137 /* Keep JVMTI addition small and only check enabled flag here. */ \ 3138 /* jni_SetField_probe() assumes that is okay to create handles. */ \ 3139 if (JvmtiExport::should_post_field_modification()) { \ 3140 jvalue field_value; \ 3141 field_value.unionType = value; \ 3142 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \ 3143 } \ 3144 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \ 3145 DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\ 3146 JNI_END 3147 3148 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z) 3149 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b) 3150 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c) 3151 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s) 3152 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i) 3153 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j) 3154 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f) 3155 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d) 3156 3157 #else /* USDT2 */ 3158 3159 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \ 3160 , EntryProbe, ReturnProbe) \ 3161 \ 3162 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \ 3163 JNIWrapper("SetStatic" XSTR(Result) "Field"); \ 3164 EntryProbe; \ 3165 \ 3166 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \ 3167 assert(id->is_static_field_id(), "invalid static field id"); \ 3168 /* Keep JVMTI addition small and only check enabled flag here. */ \ 3169 /* jni_SetField_probe() assumes that is okay to create handles. */ \ 3170 if (JvmtiExport::should_post_field_modification()) { \ 3171 jvalue field_value; \ 3172 field_value.unionType = value; \ 3173 JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \ 3174 } \ 3175 id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \ 3176 ReturnProbe;\ 3177 JNI_END 3178 3179 DEFINE_SETSTATICFIELD(jboolean, bool, Boolean, 'Z', z 3180 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value), 3181 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN()) 3182 DEFINE_SETSTATICFIELD(jbyte, byte, Byte, 'B', b 3183 , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), 3184 HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN()) 3185 DEFINE_SETSTATICFIELD(jchar, char, Char, 'C', c 3186 , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), 3187 HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN()) 3188 DEFINE_SETSTATICFIELD(jshort, short, Short, 'S', s 3189 , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), 3190 HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN()) 3191 DEFINE_SETSTATICFIELD(jint, int, Int, 'I', i 3192 , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), 3193 HOTSPOT_JNI_SETSTATICINTFIELD_RETURN()) 3194 DEFINE_SETSTATICFIELD(jlong, long, Long, 'J', j 3195 , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value), 3196 HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN()) 3197 // Float and double probes don't return value because dtrace doesn't currently support it 3198 DEFINE_SETSTATICFIELD(jfloat, float, Float, 'F', f 3199 , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), 3200 HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN()) 3201 DEFINE_SETSTATICFIELD(jdouble, double, Double, 'D', d 3202 , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), 3203 HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN()) 3204 #endif /* USDT2 */ 3205 3206 // 3207 // String Operations 3208 // 3209 3210 // Unicode Interface 3211 3212 #ifndef USDT2 3213 DT_RETURN_MARK_DECL(NewString, jstring); 3214 #else /* USDT2 */ 3215 DT_RETURN_MARK_DECL(NewString, jstring 3216 , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref)); 3217 #endif /* USDT2 */ 3218 3219 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len)) 3220 JNIWrapper("NewString"); 3221 #ifndef USDT2 3222 DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len); 3223 #else /* USDT2 */ 3224 HOTSPOT_JNI_NEWSTRING_ENTRY( 3225 env, (uint16_t *) unicodeChars, len); 3226 #endif /* USDT2 */ 3227 jstring ret = NULL; 3228 DT_RETURN_MARK(NewString, jstring, (const jstring&)ret); 3229 oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL); 3230 ret = (jstring) JNIHandles::make_local(env, string); 3231 return ret; 3232 JNI_END 3233 3234 3235 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string)) 3236 JNIWrapper("GetStringLength"); 3237 #ifndef USDT2 3238 DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string); 3239 #else /* USDT2 */ 3240 HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY( 3241 env, string); 3242 #endif /* USDT2 */ 3243 jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string)); 3244 #ifndef USDT2 3245 DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret); 3246 #else /* USDT2 */ 3247 HOTSPOT_JNI_GETSTRINGLENGTH_RETURN( 3248 ret); 3249 #endif /* USDT2 */ 3250 return ret; 3251 JNI_END 3252 3253 3254 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars( 3255 JNIEnv *env, jstring string, jboolean *isCopy)) 3256 JNIWrapper("GetStringChars"); 3257 #ifndef USDT2 3258 DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy); 3259 #else /* USDT2 */ 3260 HOTSPOT_JNI_GETSTRINGCHARS_ENTRY( 3261 env, string, (uintptr_t *) isCopy); 3262 #endif /* USDT2 */ 3263 //%note jni_5 3264 if (isCopy != NULL) { 3265 *isCopy = JNI_TRUE; 3266 } 3267 oop s = JNIHandles::resolve_non_null(string); 3268 int s_len = java_lang_String::length(s); 3269 typeArrayOop s_value = java_lang_String::value(s); 3270 int s_offset = java_lang_String::offset(s); 3271 jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1, mtInternal); // add one for zero termination 3272 if (s_len > 0) { 3273 memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len); 3274 } 3275 buf[s_len] = 0; 3276 #ifndef USDT2 3277 DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf); 3278 #else /* USDT2 */ 3279 HOTSPOT_JNI_GETSTRINGCHARS_RETURN( 3280 buf); 3281 #endif /* USDT2 */ 3282 return buf; 3283 JNI_END 3284 3285 3286 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars)) 3287 JNIWrapper("ReleaseStringChars"); 3288 #ifndef USDT2 3289 DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars); 3290 #else /* USDT2 */ 3291 HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY( 3292 env, str, (uint16_t *) chars); 3293 #endif /* USDT2 */ 3294 //%note jni_6 3295 if (chars != NULL) { 3296 // Since String objects are supposed to be immutable, don't copy any 3297 // new data back. A bad user will have to go after the char array. 3298 FreeHeap((void*) chars); 3299 } 3300 #ifndef USDT2 3301 DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return); 3302 #else /* USDT2 */ 3303 HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN( 3304 ); 3305 #endif /* USDT2 */ 3306 JNI_END 3307 3308 3309 // UTF Interface 3310 3311 #ifndef USDT2 3312 DT_RETURN_MARK_DECL(NewStringUTF, jstring); 3313 #else /* USDT2 */ 3314 DT_RETURN_MARK_DECL(NewStringUTF, jstring 3315 , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref)); 3316 #endif /* USDT2 */ 3317 3318 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes)) 3319 JNIWrapper("NewStringUTF"); 3320 #ifndef USDT2 3321 DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes); 3322 #else /* USDT2 */ 3323 HOTSPOT_JNI_NEWSTRINGUTF_ENTRY( 3324 env, (char *) bytes); 3325 #endif /* USDT2 */ 3326 jstring ret; 3327 DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret); 3328 3329 oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL); 3330 ret = (jstring) JNIHandles::make_local(env, result); 3331 return ret; 3332 JNI_END 3333 3334 3335 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string)) 3336 JNIWrapper("GetStringUTFLength"); 3337 #ifndef USDT2 3338 DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string); 3339 #else /* USDT2 */ 3340 HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY( 3341 env, string); 3342 #endif /* USDT2 */ 3343 jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string)); 3344 #ifndef USDT2 3345 DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret); 3346 #else /* USDT2 */ 3347 HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN( 3348 ret); 3349 #endif /* USDT2 */ 3350 return ret; 3351 JNI_END 3352 3353 3354 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy)) 3355 JNIWrapper("GetStringUTFChars"); 3356 #ifndef USDT2 3357 DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy); 3358 #else /* USDT2 */ 3359 HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY( 3360 env, string, (uintptr_t *) isCopy); 3361 #endif /* USDT2 */ 3362 oop java_string = JNIHandles::resolve_non_null(string); 3363 size_t length = java_lang_String::utf8_length(java_string); 3364 char* result = AllocateHeap(length + 1, mtInternal); 3365 java_lang_String::as_utf8_string(java_string, result, (int) length + 1); 3366 if (isCopy != NULL) *isCopy = JNI_TRUE; 3367 #ifndef USDT2 3368 DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result); 3369 #else /* USDT2 */ 3370 HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN( 3371 result); 3372 #endif /* USDT2 */ 3373 return result; 3374 JNI_END 3375 3376 3377 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars)) 3378 JNIWrapper("ReleaseStringUTFChars"); 3379 #ifndef USDT2 3380 DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars); 3381 #else /* USDT2 */ 3382 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY( 3383 env, str, (char *) chars); 3384 #endif /* USDT2 */ 3385 if (chars != NULL) { 3386 FreeHeap((char*) chars); 3387 } 3388 #ifndef USDT2 3389 DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return); 3390 #else /* USDT2 */ 3391 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN( 3392 ); 3393 #endif /* USDT2 */ 3394 JNI_END 3395 3396 3397 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array)) 3398 JNIWrapper("GetArrayLength"); 3399 #ifndef USDT2 3400 DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array); 3401 #else /* USDT2 */ 3402 HOTSPOT_JNI_GETARRAYLENGTH_ENTRY( 3403 env, array); 3404 #endif /* USDT2 */ 3405 arrayOop a = arrayOop(JNIHandles::resolve_non_null(array)); 3406 assert(a->is_array(), "must be array"); 3407 jsize ret = a->length(); 3408 #ifndef USDT2 3409 DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret); 3410 #else /* USDT2 */ 3411 HOTSPOT_JNI_GETARRAYLENGTH_RETURN( 3412 ret); 3413 #endif /* USDT2 */ 3414 return ret; 3415 JNI_END 3416 3417 3418 // 3419 // Object Array Operations 3420 // 3421 3422 #ifndef USDT2 3423 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray); 3424 #else /* USDT2 */ 3425 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray 3426 , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref)); 3427 #endif /* USDT2 */ 3428 3429 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement)) 3430 JNIWrapper("NewObjectArray"); 3431 #ifndef USDT2 3432 DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement); 3433 #else /* USDT2 */ 3434 HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY( 3435 env, length, elementClass, initialElement); 3436 #endif /* USDT2 */ 3437 jobjectArray ret = NULL; 3438 DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret); 3439 KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass))); 3440 Klass* ako = ek()->array_klass(CHECK_NULL); 3441 KlassHandle ak = KlassHandle(THREAD, ako); 3442 ObjArrayKlass::cast(ak())->initialize(CHECK_NULL); 3443 objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL); 3444 oop initial_value = JNIHandles::resolve(initialElement); 3445 if (initial_value != NULL) { // array already initialized with NULL 3446 for (int index = 0; index < length; index++) { 3447 result->obj_at_put(index, initial_value); 3448 } 3449 } 3450 ret = (jobjectArray) JNIHandles::make_local(env, result); 3451 return ret; 3452 JNI_END 3453 3454 #ifndef USDT2 3455 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject); 3456 #else /* USDT2 */ 3457 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject 3458 , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref)); 3459 #endif /* USDT2 */ 3460 3461 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index)) 3462 JNIWrapper("GetObjectArrayElement"); 3463 #ifndef USDT2 3464 DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index); 3465 #else /* USDT2 */ 3466 HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY( 3467 env, array, index); 3468 #endif /* USDT2 */ 3469 jobject ret = NULL; 3470 DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret); 3471 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); 3472 if (a->is_within_bounds(index)) { 3473 ret = JNIHandles::make_local(env, a->obj_at(index)); 3474 return ret; 3475 } else { 3476 char buf[jintAsStringSize]; 3477 sprintf(buf, "%d", index); 3478 THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); 3479 } 3480 JNI_END 3481 3482 #ifndef USDT2 3483 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement); 3484 #else /* USDT2 */ 3485 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement 3486 , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN()); 3487 #endif /* USDT2 */ 3488 3489 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value)) 3490 JNIWrapper("SetObjectArrayElement"); 3491 #ifndef USDT2 3492 DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value); 3493 #else /* USDT2 */ 3494 HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY( 3495 env, array, index, value); 3496 #endif /* USDT2 */ 3497 DT_VOID_RETURN_MARK(SetObjectArrayElement); 3498 3499 objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array)); 3500 oop v = JNIHandles::resolve(value); 3501 if (a->is_within_bounds(index)) { 3502 if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) { 3503 a->obj_at_put(index, v); 3504 } else { 3505 THROW(vmSymbols::java_lang_ArrayStoreException()); 3506 } 3507 } else { 3508 char buf[jintAsStringSize]; 3509 sprintf(buf, "%d", index); 3510 THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf); 3511 } 3512 JNI_END 3513 3514 3515 #ifndef USDT2 3516 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \ 3517 \ 3518 DT_RETURN_MARK_DECL(New##Result##Array, Return); \ 3519 \ 3520 JNI_ENTRY(Return, \ 3521 jni_New##Result##Array(JNIEnv *env, jsize len)) \ 3522 JNIWrapper("New" XSTR(Result) "Array"); \ 3523 DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\ 3524 Return ret = NULL;\ 3525 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\ 3526 \ 3527 oop obj= oopFactory::Allocator(len, CHECK_0); \ 3528 ret = (Return) JNIHandles::make_local(env, obj); \ 3529 return ret;\ 3530 JNI_END 3531 3532 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean) 3533 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte) 3534 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short) 3535 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char) 3536 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int) 3537 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long) 3538 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float) 3539 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double) 3540 3541 #else /* USDT2 */ 3542 3543 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \ 3544 ,EntryProbe,ReturnProbe) \ 3545 \ 3546 DT_RETURN_MARK_DECL(New##Result##Array, Return \ 3547 , ReturnProbe); \ 3548 \ 3549 JNI_ENTRY(Return, \ 3550 jni_New##Result##Array(JNIEnv *env, jsize len)) \ 3551 JNIWrapper("New" XSTR(Result) "Array"); \ 3552 EntryProbe; \ 3553 Return ret = NULL;\ 3554 DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\ 3555 \ 3556 oop obj= oopFactory::Allocator(len, CHECK_0); \ 3557 ret = (Return) JNIHandles::make_local(env, obj); \ 3558 return ret;\ 3559 JNI_END 3560 3561 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray, Boolean, 3562 HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len), 3563 HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref)) 3564 DEFINE_NEWSCALARARRAY(jbyteArray, new_byteArray, Byte, 3565 HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len), 3566 HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref)) 3567 DEFINE_NEWSCALARARRAY(jshortArray, new_shortArray, Short, 3568 HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len), 3569 HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref)) 3570 DEFINE_NEWSCALARARRAY(jcharArray, new_charArray, Char, 3571 HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len), 3572 HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref)) 3573 DEFINE_NEWSCALARARRAY(jintArray, new_intArray, Int, 3574 HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len), 3575 HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref)) 3576 DEFINE_NEWSCALARARRAY(jlongArray, new_longArray, Long, 3577 HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len), 3578 HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref)) 3579 DEFINE_NEWSCALARARRAY(jfloatArray, new_singleArray, Float, 3580 HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len), 3581 HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref)) 3582 DEFINE_NEWSCALARARRAY(jdoubleArray, new_doubleArray, Double, 3583 HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len), 3584 HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref)) 3585 #endif /* USDT2 */ 3586 3587 // Return an address which will fault if the caller writes to it. 3588 3589 static char* get_bad_address() { 3590 static char* bad_address = NULL; 3591 if (bad_address == NULL) { 3592 size_t size = os::vm_allocation_granularity(); 3593 bad_address = os::reserve_memory(size); 3594 if (bad_address != NULL) { 3595 os::protect_memory(bad_address, size, os::MEM_PROT_READ, 3596 /*is_committed*/false); 3597 } 3598 } 3599 return bad_address; 3600 } 3601 3602 3603 #ifndef USDT2 3604 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \ 3605 \ 3606 JNI_QUICK_ENTRY(ElementType*, \ 3607 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \ 3608 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \ 3609 DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\ 3610 /* allocate an chunk of memory in c land */ \ 3611 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3612 ElementType* result; \ 3613 int len = a->length(); \ 3614 if (len == 0) { \ 3615 /* Empty array: legal but useless, can't return NULL. \ 3616 * Return a pointer to something useless. \ 3617 * Avoid asserts in typeArrayOop. */ \ 3618 result = (ElementType*)get_bad_address(); \ 3619 } else { \ 3620 result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \ 3621 /* copy the array to the c chunk */ \ 3622 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \ 3623 } \ 3624 if (isCopy) *isCopy = JNI_TRUE; \ 3625 DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\ 3626 return result; \ 3627 JNI_END 3628 3629 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool) 3630 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte) 3631 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short) 3632 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char) 3633 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int) 3634 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long) 3635 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float) 3636 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double) 3637 3638 #else /* USDT2 */ 3639 3640 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \ 3641 , EntryProbe, ReturnProbe) \ 3642 \ 3643 JNI_QUICK_ENTRY(ElementType*, \ 3644 jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \ 3645 JNIWrapper("Get" XSTR(Result) "ArrayElements"); \ 3646 EntryProbe; \ 3647 /* allocate an chunk of memory in c land */ \ 3648 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3649 ElementType* result; \ 3650 int len = a->length(); \ 3651 if (len == 0) { \ 3652 /* Empty array: legal but useless, can't return NULL. \ 3653 * Return a pointer to something useless. \ 3654 * Avoid asserts in typeArrayOop. */ \ 3655 result = (ElementType*)get_bad_address(); \ 3656 } else { \ 3657 result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \ 3658 /* copy the array to the c chunk */ \ 3659 memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \ 3660 } \ 3661 if (isCopy) *isCopy = JNI_TRUE; \ 3662 ReturnProbe; \ 3663 return result; \ 3664 JNI_END 3665 3666 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool 3667 , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), 3668 HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result)) 3669 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte 3670 , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), 3671 HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result)) 3672 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT, jshort, Short, short 3673 , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy), 3674 HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result)) 3675 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR, jchar, Char, char 3676 , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy), 3677 HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result)) 3678 DEFINE_GETSCALARARRAYELEMENTS(T_INT, jint, Int, int 3679 , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), 3680 HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result)) 3681 DEFINE_GETSCALARARRAYELEMENTS(T_LONG, jlong, Long, long 3682 , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), 3683 HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result))) 3684 // Float and double probes don't return value because dtrace doesn't currently support it 3685 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float 3686 , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), 3687 HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result)) 3688 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double 3689 , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy), 3690 HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result)) 3691 #endif /* USDT2 */ 3692 3693 #ifndef USDT2 3694 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \ 3695 \ 3696 JNI_QUICK_ENTRY(void, \ 3697 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \ 3698 ElementType *buf, jint mode)) \ 3699 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \ 3700 DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\ 3701 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3702 int len = a->length(); \ 3703 if (len != 0) { /* Empty array: nothing to free or copy. */ \ 3704 if ((mode == 0) || (mode == JNI_COMMIT)) { \ 3705 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \ 3706 } \ 3707 if ((mode == 0) || (mode == JNI_ABORT)) { \ 3708 FreeHeap(buf); \ 3709 } \ 3710 } \ 3711 DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\ 3712 JNI_END 3713 3714 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool) 3715 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte) 3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short) 3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char) 3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int) 3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long) 3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float) 3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double) 3722 3723 #else /* USDT2 */ 3724 3725 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \ 3726 , EntryProbe, ReturnProbe);\ 3727 \ 3728 JNI_QUICK_ENTRY(void, \ 3729 jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \ 3730 ElementType *buf, jint mode)) \ 3731 JNIWrapper("Release" XSTR(Result) "ArrayElements"); \ 3732 EntryProbe; \ 3733 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3734 int len = a->length(); \ 3735 if (len != 0) { /* Empty array: nothing to free or copy. */ \ 3736 if ((mode == 0) || (mode == JNI_COMMIT)) { \ 3737 memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \ 3738 } \ 3739 if ((mode == 0) || (mode == JNI_ABORT)) { \ 3740 FreeHeap(buf); \ 3741 } \ 3742 } \ 3743 ReturnProbe; \ 3744 JNI_END 3745 3746 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool 3747 , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode), 3748 HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN()) 3749 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE, jbyte, Byte, byte 3750 , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode), 3751 HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN()) 3752 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT, jshort, Short, short 3753 , HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode), 3754 HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN()) 3755 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR, jchar, Char, char 3756 , HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode), 3757 HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN()) 3758 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT, jint, Int, int 3759 , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode), 3760 HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN()) 3761 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG, jlong, Long, long 3762 , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode), 3763 HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN()) 3764 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT, jfloat, Float, float 3765 , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode), 3766 HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN()) 3767 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE, jdouble, Double, double 3768 , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode), 3769 HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN()) 3770 #endif /* USDT2 */ 3771 3772 #ifndef USDT2 3773 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \ 3774 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\ 3775 \ 3776 JNI_ENTRY(void, \ 3777 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ 3778 jsize len, ElementType *buf)) \ 3779 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \ 3780 DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\ 3781 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \ 3782 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3783 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \ 3784 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ 3785 } else { \ 3786 if (len > 0) { \ 3787 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \ 3788 memcpy((u_char*) buf, \ 3789 (u_char*) src->Tag##_at_addr(start), \ 3790 len << sc); \ 3791 } \ 3792 } \ 3793 JNI_END 3794 3795 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool) 3796 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte) 3797 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short) 3798 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char) 3799 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int) 3800 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long) 3801 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float) 3802 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double) 3803 3804 #else /* USDT2 */ 3805 3806 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \ 3807 , EntryProbe, ReturnProbe); \ 3808 DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \ 3809 , ReturnProbe); \ 3810 \ 3811 JNI_ENTRY(void, \ 3812 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ 3813 jsize len, ElementType *buf)) \ 3814 JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \ 3815 EntryProbe; \ 3816 DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \ 3817 typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3818 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \ 3819 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ 3820 } else { \ 3821 if (len > 0) { \ 3822 int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \ 3823 memcpy((u_char*) buf, \ 3824 (u_char*) src->Tag##_at_addr(start), \ 3825 len << sc); \ 3826 } \ 3827 } \ 3828 JNI_END 3829 3830 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool 3831 , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), 3832 HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN()); 3833 DEFINE_GETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte 3834 , HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf), 3835 HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN()); 3836 DEFINE_GETSCALARARRAYREGION(T_SHORT, jshort, Short, short 3837 , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), 3838 HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN()); 3839 DEFINE_GETSCALARARRAYREGION(T_CHAR, jchar, Char, char 3840 , HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf), 3841 HOTSPOT_JNI_GETCHARARRAYREGION_RETURN()); 3842 DEFINE_GETSCALARARRAYREGION(T_INT, jint, Int, int 3843 , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf), 3844 HOTSPOT_JNI_GETINTARRAYREGION_RETURN()); 3845 DEFINE_GETSCALARARRAYREGION(T_LONG, jlong, Long, long 3846 , HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), 3847 HOTSPOT_JNI_GETLONGARRAYREGION_RETURN()); 3848 DEFINE_GETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float 3849 , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf), 3850 HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN()); 3851 DEFINE_GETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double 3852 , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf), 3853 HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN()); 3854 #endif /* USDT2 */ 3855 3856 #ifndef USDT2 3857 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \ 3858 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\ 3859 \ 3860 JNI_ENTRY(void, \ 3861 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ 3862 jsize len, const ElementType *buf)) \ 3863 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \ 3864 DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\ 3865 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \ 3866 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3867 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \ 3868 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ 3869 } else { \ 3870 if (len > 0) { \ 3871 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \ 3872 memcpy((u_char*) dst->Tag##_at_addr(start), \ 3873 (u_char*) buf, \ 3874 len << sc); \ 3875 } \ 3876 } \ 3877 JNI_END 3878 3879 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool) 3880 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte) 3881 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short) 3882 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char) 3883 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int) 3884 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long) 3885 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float) 3886 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double) 3887 3888 #else /* USDT2 */ 3889 3890 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \ 3891 , EntryProbe, ReturnProbe); \ 3892 DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \ 3893 ,ReturnProbe); \ 3894 \ 3895 JNI_ENTRY(void, \ 3896 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \ 3897 jsize len, const ElementType *buf)) \ 3898 JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \ 3899 EntryProbe; \ 3900 DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \ 3901 typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \ 3902 if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \ 3903 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \ 3904 } else { \ 3905 if (len > 0) { \ 3906 int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \ 3907 memcpy((u_char*) dst->Tag##_at_addr(start), \ 3908 (u_char*) buf, \ 3909 len << sc); \ 3910 } \ 3911 } \ 3912 JNI_END 3913 3914 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool 3915 , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf), 3916 HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN()) 3917 DEFINE_SETSCALARARRAYREGION(T_BYTE, jbyte, Byte, byte 3918 , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf), 3919 HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN()) 3920 DEFINE_SETSCALARARRAYREGION(T_SHORT, jshort, Short, short 3921 , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), 3922 HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN()) 3923 DEFINE_SETSCALARARRAYREGION(T_CHAR, jchar, Char, char 3924 , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf), 3925 HOTSPOT_JNI_SETCHARARRAYREGION_RETURN()) 3926 DEFINE_SETSCALARARRAYREGION(T_INT, jint, Int, int 3927 , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf), 3928 HOTSPOT_JNI_SETINTARRAYREGION_RETURN()) 3929 DEFINE_SETSCALARARRAYREGION(T_LONG, jlong, Long, long 3930 , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf), 3931 HOTSPOT_JNI_SETLONGARRAYREGION_RETURN()) 3932 DEFINE_SETSCALARARRAYREGION(T_FLOAT, jfloat, Float, float 3933 , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf), 3934 HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN()) 3935 DEFINE_SETSCALARARRAYREGION(T_DOUBLE, jdouble, Double, double 3936 , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf), 3937 HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN()) 3938 #endif /* USDT2 */ 3939 3940 3941 // 3942 // Interception of natives 3943 // 3944 3945 // The RegisterNatives call being attempted tried to register with a method that 3946 // is not native. Ask JVM TI what prefixes have been specified. Then check 3947 // to see if the native method is now wrapped with the prefixes. See the 3948 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details. 3949 static Method* find_prefixed_native(KlassHandle k, 3950 Symbol* name, Symbol* signature, TRAPS) { 3951 #if INCLUDE_JVMTI 3952 ResourceMark rm(THREAD); 3953 Method* method; 3954 int name_len = name->utf8_length(); 3955 char* name_str = name->as_utf8(); 3956 int prefix_count; 3957 char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count); 3958 for (int i = 0; i < prefix_count; i++) { 3959 char* prefix = prefixes[i]; 3960 int prefix_len = (int)strlen(prefix); 3961 3962 // try adding this prefix to the method name and see if it matches another method name 3963 int trial_len = name_len + prefix_len; 3964 char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1); 3965 strcpy(trial_name_str, prefix); 3966 strcat(trial_name_str, name_str); 3967 TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len); 3968 if (trial_name == NULL) { 3969 continue; // no such symbol, so this prefix wasn't used, try the next prefix 3970 } 3971 method = k()->lookup_method(trial_name, signature); 3972 if (method == NULL) { 3973 continue; // signature doesn't match, try the next prefix 3974 } 3975 if (method->is_native()) { 3976 method->set_is_prefixed_native(); 3977 return method; // wahoo, we found a prefixed version of the method, return it 3978 } 3979 // found as non-native, so prefix is good, add it, probably just need more prefixes 3980 name_len = trial_len; 3981 name_str = trial_name_str; 3982 } 3983 #endif // INCLUDE_JVMTI 3984 return NULL; // not found 3985 } 3986 3987 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) { 3988 Method* method = k()->lookup_method(name, signature); 3989 if (method == NULL) { 3990 ResourceMark rm; 3991 stringStream st; 3992 st.print("Method %s name or signature does not match", 3993 Method::name_and_sig_as_C_string(k(), name, signature)); 3994 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); 3995 } 3996 if (!method->is_native()) { 3997 // trying to register to a non-native method, see if a JVM TI agent has added prefix(es) 3998 method = find_prefixed_native(k, name, signature, THREAD); 3999 if (method == NULL) { 4000 ResourceMark rm; 4001 stringStream st; 4002 st.print("Method %s is not declared as native", 4003 Method::name_and_sig_as_C_string(k(), name, signature)); 4004 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false); 4005 } 4006 } 4007 4008 if (entry != NULL) { 4009 method->set_native_function(entry, 4010 Method::native_bind_event_is_interesting); 4011 } else { 4012 method->clear_native_function(); 4013 } 4014 if (PrintJNIResolving) { 4015 ResourceMark rm(THREAD); 4016 tty->print_cr("[Registering JNI native method %s.%s]", 4017 method->method_holder()->external_name(), 4018 method->name()->as_C_string()); 4019 } 4020 return true; 4021 } 4022 4023 #ifndef USDT2 4024 DT_RETURN_MARK_DECL(RegisterNatives, jint); 4025 #else /* USDT2 */ 4026 DT_RETURN_MARK_DECL(RegisterNatives, jint 4027 , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref)); 4028 #endif /* USDT2 */ 4029 4030 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz, 4031 const JNINativeMethod *methods, 4032 jint nMethods)) 4033 JNIWrapper("RegisterNatives"); 4034 #ifndef USDT2 4035 DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods); 4036 #else /* USDT2 */ 4037 HOTSPOT_JNI_REGISTERNATIVES_ENTRY( 4038 env, clazz, (void *) methods, nMethods); 4039 #endif /* USDT2 */ 4040 jint ret = 0; 4041 DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret); 4042 4043 KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz))); 4044 4045 for (int index = 0; index < nMethods; index++) { 4046 const char* meth_name = methods[index].name; 4047 const char* meth_sig = methods[index].signature; 4048 int meth_name_len = (int)strlen(meth_name); 4049 4050 // The class should have been loaded (we have an instance of the class 4051 // passed in) so the method and signature should already be in the symbol 4052 // table. If they're not there, the method doesn't exist. 4053 TempNewSymbol name = SymbolTable::probe(meth_name, meth_name_len); 4054 TempNewSymbol signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig)); 4055 4056 if (name == NULL || signature == NULL) { 4057 ResourceMark rm; 4058 stringStream st; 4059 st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig); 4060 // Must return negative value on failure 4061 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1); 4062 } 4063 4064 bool res = register_native(h_k, name, signature, 4065 (address) methods[index].fnPtr, THREAD); 4066 if (!res) { 4067 ret = -1; 4068 break; 4069 } 4070 } 4071 return ret; 4072 JNI_END 4073 4074 4075 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz)) 4076 JNIWrapper("UnregisterNatives"); 4077 #ifndef USDT2 4078 DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz); 4079 #else /* USDT2 */ 4080 HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY( 4081 env, clazz); 4082 #endif /* USDT2 */ 4083 Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)); 4084 //%note jni_2 4085 if (k->oop_is_instance()) { 4086 for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) { 4087 Method* m = InstanceKlass::cast(k)->methods()->at(index); 4088 if (m->is_native()) { 4089 m->clear_native_function(); 4090 m->set_signature_handler(NULL); 4091 } 4092 } 4093 } 4094 #ifndef USDT2 4095 DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0); 4096 #else /* USDT2 */ 4097 HOTSPOT_JNI_UNREGISTERNATIVES_RETURN( 4098 0); 4099 #endif /* USDT2 */ 4100 return 0; 4101 JNI_END 4102 4103 // 4104 // Monitor functions 4105 // 4106 4107 #ifndef USDT2 4108 DT_RETURN_MARK_DECL(MonitorEnter, jint); 4109 #else /* USDT2 */ 4110 DT_RETURN_MARK_DECL(MonitorEnter, jint 4111 , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref)); 4112 #endif /* USDT2 */ 4113 4114 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj)) 4115 #ifndef USDT2 4116 DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj); 4117 #else /* USDT2 */ 4118 HOTSPOT_JNI_MONITORENTER_ENTRY( 4119 env, jobj); 4120 #endif /* USDT2 */ 4121 jint ret = JNI_ERR; 4122 DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret); 4123 4124 // If the object is null, we can't do anything with it 4125 if (jobj == NULL) { 4126 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); 4127 } 4128 4129 Handle obj(thread, JNIHandles::resolve_non_null(jobj)); 4130 ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR)); 4131 ret = JNI_OK; 4132 return ret; 4133 JNI_END 4134 4135 #ifndef USDT2 4136 DT_RETURN_MARK_DECL(MonitorExit, jint); 4137 #else /* USDT2 */ 4138 DT_RETURN_MARK_DECL(MonitorExit, jint 4139 , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref)); 4140 #endif /* USDT2 */ 4141 4142 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj)) 4143 #ifndef USDT2 4144 DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj); 4145 #else /* USDT2 */ 4146 HOTSPOT_JNI_MONITOREXIT_ENTRY( 4147 env, jobj); 4148 #endif /* USDT2 */ 4149 jint ret = JNI_ERR; 4150 DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret); 4151 4152 // Don't do anything with a null object 4153 if (jobj == NULL) { 4154 THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR); 4155 } 4156 4157 Handle obj(THREAD, JNIHandles::resolve_non_null(jobj)); 4158 ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR)); 4159 4160 ret = JNI_OK; 4161 return ret; 4162 JNI_END 4163 4164 // 4165 // Extensions 4166 // 4167 4168 #ifndef USDT2 4169 DT_VOID_RETURN_MARK_DECL(GetStringRegion); 4170 #else /* USDT2 */ 4171 DT_VOID_RETURN_MARK_DECL(GetStringRegion 4172 , HOTSPOT_JNI_GETSTRINGREGION_RETURN()); 4173 #endif /* USDT2 */ 4174 4175 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf)) 4176 JNIWrapper("GetStringRegion"); 4177 #ifndef USDT2 4178 DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf); 4179 #else /* USDT2 */ 4180 HOTSPOT_JNI_GETSTRINGREGION_ENTRY( 4181 env, string, start, len, buf); 4182 #endif /* USDT2 */ 4183 DT_VOID_RETURN_MARK(GetStringRegion); 4184 oop s = JNIHandles::resolve_non_null(string); 4185 int s_len = java_lang_String::length(s); 4186 if (start < 0 || len < 0 || start + len > s_len) { 4187 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); 4188 } else { 4189 if (len > 0) { 4190 int s_offset = java_lang_String::offset(s); 4191 typeArrayOop s_value = java_lang_String::value(s); 4192 memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len); 4193 } 4194 } 4195 JNI_END 4196 4197 #ifndef USDT2 4198 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion); 4199 #else /* USDT2 */ 4200 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion 4201 , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN()); 4202 #endif /* USDT2 */ 4203 4204 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf)) 4205 JNIWrapper("GetStringUTFRegion"); 4206 #ifndef USDT2 4207 DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf); 4208 #else /* USDT2 */ 4209 HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY( 4210 env, string, start, len, buf); 4211 #endif /* USDT2 */ 4212 DT_VOID_RETURN_MARK(GetStringUTFRegion); 4213 oop s = JNIHandles::resolve_non_null(string); 4214 int s_len = java_lang_String::length(s); 4215 if (start < 0 || len < 0 || start + len > s_len) { 4216 THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException()); 4217 } else { 4218 //%note jni_7 4219 if (len > 0) { 4220 ResourceMark rm(THREAD); 4221 char *utf_region = java_lang_String::as_utf8_string(s, start, len); 4222 int utf_len = (int)strlen(utf_region); 4223 memcpy(buf, utf_region, utf_len); 4224 buf[utf_len] = 0; 4225 } else { 4226 // JDK null-terminates the buffer even in len is zero 4227 if (buf != NULL) { 4228 buf[0] = 0; 4229 } 4230 } 4231 } 4232 JNI_END 4233 4234 4235 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy)) 4236 JNIWrapper("GetPrimitiveArrayCritical"); 4237 #ifndef USDT2 4238 DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy); 4239 #else /* USDT2 */ 4240 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY( 4241 env, array, (uintptr_t *) isCopy); 4242 #endif /* USDT2 */ 4243 GC_locker::lock_critical(thread); 4244 if (isCopy != NULL) { 4245 *isCopy = JNI_FALSE; 4246 } 4247 oop a = JNIHandles::resolve_non_null(array); 4248 assert(a->is_array(), "just checking"); 4249 BasicType type; 4250 if (a->is_objArray()) { 4251 type = T_OBJECT; 4252 } else { 4253 type = TypeArrayKlass::cast(a->klass())->element_type(); 4254 } 4255 void* ret = arrayOop(a)->base(type); 4256 #ifndef USDT2 4257 DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret); 4258 #else /* USDT2 */ 4259 HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN( 4260 ret); 4261 #endif /* USDT2 */ 4262 return ret; 4263 JNI_END 4264 4265 4266 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode)) 4267 JNIWrapper("ReleasePrimitiveArrayCritical"); 4268 #ifndef USDT2 4269 DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode); 4270 #else /* USDT2 */ 4271 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY( 4272 env, array, carray, mode); 4273 #endif /* USDT2 */ 4274 // The array, carray and mode arguments are ignored 4275 GC_locker::unlock_critical(thread); 4276 #ifndef USDT2 4277 DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return); 4278 #else /* USDT2 */ 4279 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN( 4280 ); 4281 #endif /* USDT2 */ 4282 JNI_END 4283 4284 4285 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy)) 4286 JNIWrapper("GetStringCritical"); 4287 #ifndef USDT2 4288 DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy); 4289 #else /* USDT2 */ 4290 HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY( 4291 env, string, (uintptr_t *) isCopy); 4292 #endif /* USDT2 */ 4293 GC_locker::lock_critical(thread); 4294 if (isCopy != NULL) { 4295 *isCopy = JNI_FALSE; 4296 } 4297 oop s = JNIHandles::resolve_non_null(string); 4298 int s_len = java_lang_String::length(s); 4299 typeArrayOop s_value = java_lang_String::value(s); 4300 int s_offset = java_lang_String::offset(s); 4301 const jchar* ret; 4302 if (s_len > 0) { 4303 ret = s_value->char_at_addr(s_offset); 4304 } else { 4305 ret = (jchar*) s_value->base(T_CHAR); 4306 } 4307 #ifndef USDT2 4308 DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret); 4309 #else /* USDT2 */ 4310 HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN( 4311 (uint16_t *) ret); 4312 #endif /* USDT2 */ 4313 return ret; 4314 JNI_END 4315 4316 4317 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars)) 4318 JNIWrapper("ReleaseStringCritical"); 4319 #ifndef USDT2 4320 DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars); 4321 #else /* USDT2 */ 4322 HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY( 4323 env, str, (uint16_t *) chars); 4324 #endif /* USDT2 */ 4325 // The str and chars arguments are ignored 4326 GC_locker::unlock_critical(thread); 4327 #ifndef USDT2 4328 DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return); 4329 #else /* USDT2 */ 4330 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN( 4331 ); 4332 #endif /* USDT2 */ 4333 JNI_END 4334 4335 4336 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref)) 4337 JNIWrapper("jni_NewWeakGlobalRef"); 4338 #ifndef USDT2 4339 DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref); 4340 #else /* USDT2 */ 4341 HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY( 4342 env, ref); 4343 #endif /* USDT2 */ 4344 Handle ref_handle(thread, JNIHandles::resolve(ref)); 4345 jweak ret = JNIHandles::make_weak_global(ref_handle); 4346 #ifndef USDT2 4347 DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret); 4348 #else /* USDT2 */ 4349 HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN( 4350 ret); 4351 #endif /* USDT2 */ 4352 return ret; 4353 JNI_END 4354 4355 // Must be JNI_ENTRY (with HandleMark) 4356 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref)) 4357 JNIWrapper("jni_DeleteWeakGlobalRef"); 4358 #ifndef USDT2 4359 DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref); 4360 #else /* USDT2 */ 4361 HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY( 4362 env, ref); 4363 #endif /* USDT2 */ 4364 JNIHandles::destroy_weak_global(ref); 4365 #ifndef USDT2 4366 DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return); 4367 #else /* USDT2 */ 4368 HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN( 4369 ); 4370 #endif /* USDT2 */ 4371 JNI_END 4372 4373 4374 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env)) 4375 JNIWrapper("jni_ExceptionCheck"); 4376 #ifndef USDT2 4377 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env); 4378 #else /* USDT2 */ 4379 HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY( 4380 env); 4381 #endif /* USDT2 */ 4382 jni_check_async_exceptions(thread); 4383 jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE; 4384 #ifndef USDT2 4385 DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret); 4386 #else /* USDT2 */ 4387 HOTSPOT_JNI_EXCEPTIONCHECK_RETURN( 4388 ret); 4389 #endif /* USDT2 */ 4390 return ret; 4391 JNI_END 4392 4393 4394 // Initialization state for three routines below relating to 4395 // java.nio.DirectBuffers 4396 static jint directBufferSupportInitializeStarted = 0; 4397 static volatile jint directBufferSupportInitializeEnded = 0; 4398 static volatile jint directBufferSupportInitializeFailed = 0; 4399 static jclass bufferClass = NULL; 4400 static jclass directBufferClass = NULL; 4401 static jclass directByteBufferClass = NULL; 4402 static jmethodID directByteBufferConstructor = NULL; 4403 static jfieldID directBufferAddressField = NULL; 4404 static jfieldID bufferCapacityField = NULL; 4405 4406 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) { 4407 Handle loader; // null (bootstrap) loader 4408 Handle protection_domain; // null protection domain 4409 4410 TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL); 4411 jclass result = find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL); 4412 4413 if (TraceClassResolution && result != NULL) { 4414 trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result))); 4415 } 4416 return result; 4417 } 4418 4419 // These lookups are done with the NULL (bootstrap) ClassLoader to 4420 // circumvent any security checks that would be done by jni_FindClass. 4421 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env)) 4422 { 4423 if ((bufferClass = lookupOne(env, "java/nio/Buffer", thread)) == NULL) { return false; } 4424 if ((directBufferClass = lookupOne(env, "sun/nio/ch/DirectBuffer", thread)) == NULL) { return false; } 4425 if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; } 4426 return true; 4427 } 4428 JNI_END 4429 4430 4431 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) { 4432 if (directBufferSupportInitializeFailed) { 4433 return false; 4434 } 4435 4436 if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) { 4437 if (!lookupDirectBufferClasses(env)) { 4438 directBufferSupportInitializeFailed = 1; 4439 return false; 4440 } 4441 4442 // Make global references for these 4443 bufferClass = (jclass) env->NewGlobalRef(bufferClass); 4444 directBufferClass = (jclass) env->NewGlobalRef(directBufferClass); 4445 directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass); 4446 4447 // Get needed field and method IDs 4448 directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V"); 4449 directBufferAddressField = env->GetFieldID(bufferClass, "address", "J"); 4450 bufferCapacityField = env->GetFieldID(bufferClass, "capacity", "I"); 4451 4452 if ((directByteBufferConstructor == NULL) || 4453 (directBufferAddressField == NULL) || 4454 (bufferCapacityField == NULL)) { 4455 directBufferSupportInitializeFailed = 1; 4456 return false; 4457 } 4458 4459 directBufferSupportInitializeEnded = 1; 4460 } else { 4461 while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) { 4462 // Set state as yield_all can call os:sleep. On Solaris, yield_all calls 4463 // os::sleep which requires the VM state transition. On other platforms, it 4464 // is not necessary. The following call to change the VM state is purposely 4465 // put inside the loop to avoid potential deadlock when multiple threads 4466 // try to call this method. See 6791815 for more details. 4467 ThreadInVMfromNative tivn(thread); 4468 os::yield_all(); 4469 } 4470 } 4471 4472 return !directBufferSupportInitializeFailed; 4473 } 4474 4475 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity) 4476 { 4477 // thread_from_jni_environment() will block if VM is gone. 4478 JavaThread* thread = JavaThread::thread_from_jni_environment(env); 4479 4480 JNIWrapper("jni_NewDirectByteBuffer"); 4481 #ifndef USDT2 4482 DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity); 4483 #else /* USDT2 */ 4484 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY( 4485 env, address, capacity); 4486 #endif /* USDT2 */ 4487 4488 if (!directBufferSupportInitializeEnded) { 4489 if (!initializeDirectBufferSupport(env, thread)) { 4490 #ifndef USDT2 4491 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL); 4492 #else /* USDT2 */ 4493 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN( 4494 NULL); 4495 #endif /* USDT2 */ 4496 return NULL; 4497 } 4498 } 4499 4500 // Being paranoid about accidental sign extension on address 4501 jlong addr = (jlong) ((uintptr_t) address); 4502 // NOTE that package-private DirectByteBuffer constructor currently 4503 // takes int capacity 4504 jint cap = (jint) capacity; 4505 jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap); 4506 #ifndef USDT2 4507 DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret); 4508 #else /* USDT2 */ 4509 HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN( 4510 ret); 4511 #endif /* USDT2 */ 4512 return ret; 4513 } 4514 4515 #ifndef USDT2 4516 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*); 4517 #else /* USDT2 */ 4518 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void* 4519 , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref)); 4520 #endif /* USDT2 */ 4521 4522 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf) 4523 { 4524 // thread_from_jni_environment() will block if VM is gone. 4525 JavaThread* thread = JavaThread::thread_from_jni_environment(env); 4526 4527 JNIWrapper("jni_GetDirectBufferAddress"); 4528 #ifndef USDT2 4529 DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf); 4530 #else /* USDT2 */ 4531 HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY( 4532 env, buf); 4533 #endif /* USDT2 */ 4534 void* ret = NULL; 4535 DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret); 4536 4537 if (!directBufferSupportInitializeEnded) { 4538 if (!initializeDirectBufferSupport(env, thread)) { 4539 return 0; 4540 } 4541 } 4542 4543 if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) { 4544 return 0; 4545 } 4546 4547 ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField); 4548 return ret; 4549 } 4550 4551 #ifndef USDT2 4552 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong); 4553 #else /* USDT2 */ 4554 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong 4555 , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref)); 4556 #endif /* USDT2 */ 4557 4558 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf) 4559 { 4560 // thread_from_jni_environment() will block if VM is gone. 4561 JavaThread* thread = JavaThread::thread_from_jni_environment(env); 4562 4563 JNIWrapper("jni_GetDirectBufferCapacity"); 4564 #ifndef USDT2 4565 DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf); 4566 #else /* USDT2 */ 4567 HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY( 4568 env, buf); 4569 #endif /* USDT2 */ 4570 jlong ret = -1; 4571 DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret); 4572 4573 if (!directBufferSupportInitializeEnded) { 4574 if (!initializeDirectBufferSupport(env, thread)) { 4575 ret = 0; 4576 return ret; 4577 } 4578 } 4579 4580 if (buf == NULL) { 4581 return -1; 4582 } 4583 4584 if (!env->IsInstanceOf(buf, directBufferClass)) { 4585 return -1; 4586 } 4587 4588 // NOTE that capacity is currently an int in the implementation 4589 ret = env->GetIntField(buf, bufferCapacityField); 4590 return ret; 4591 } 4592 4593 4594 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env)) 4595 JNIWrapper("GetVersion"); 4596 #ifndef USDT2 4597 DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env); 4598 #else /* USDT2 */ 4599 HOTSPOT_JNI_GETVERSION_ENTRY( 4600 env); 4601 #endif /* USDT2 */ 4602 #ifndef USDT2 4603 DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion); 4604 #else /* USDT2 */ 4605 HOTSPOT_JNI_GETVERSION_RETURN( 4606 CurrentVersion); 4607 #endif /* USDT2 */ 4608 return CurrentVersion; 4609 JNI_END 4610 4611 extern struct JavaVM_ main_vm; 4612 4613 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm)) 4614 JNIWrapper("jni_GetJavaVM"); 4615 #ifndef USDT2 4616 DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm); 4617 #else /* USDT2 */ 4618 HOTSPOT_JNI_GETJAVAVM_ENTRY( 4619 env, (void **) vm); 4620 #endif /* USDT2 */ 4621 *vm = (JavaVM *)(&main_vm); 4622 #ifndef USDT2 4623 DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK); 4624 #else /* USDT2 */ 4625 HOTSPOT_JNI_GETJAVAVM_RETURN( 4626 JNI_OK); 4627 #endif /* USDT2 */ 4628 return JNI_OK; 4629 JNI_END 4630 4631 // Structure containing all jni functions 4632 struct JNINativeInterface_ jni_NativeInterface = { 4633 NULL, 4634 NULL, 4635 NULL, 4636 4637 NULL, 4638 4639 jni_GetVersion, 4640 4641 jni_DefineClass, 4642 jni_FindClass, 4643 4644 jni_FromReflectedMethod, 4645 jni_FromReflectedField, 4646 4647 jni_ToReflectedMethod, 4648 4649 jni_GetSuperclass, 4650 jni_IsAssignableFrom, 4651 4652 jni_ToReflectedField, 4653 4654 jni_Throw, 4655 jni_ThrowNew, 4656 jni_ExceptionOccurred, 4657 jni_ExceptionDescribe, 4658 jni_ExceptionClear, 4659 jni_FatalError, 4660 4661 jni_PushLocalFrame, 4662 jni_PopLocalFrame, 4663 4664 jni_NewGlobalRef, 4665 jni_DeleteGlobalRef, 4666 jni_DeleteLocalRef, 4667 jni_IsSameObject, 4668 4669 jni_NewLocalRef, 4670 jni_EnsureLocalCapacity, 4671 4672 jni_AllocObject, 4673 jni_NewObject, 4674 jni_NewObjectV, 4675 jni_NewObjectA, 4676 4677 jni_GetObjectClass, 4678 jni_IsInstanceOf, 4679 4680 jni_GetMethodID, 4681 4682 jni_CallObjectMethod, 4683 jni_CallObjectMethodV, 4684 jni_CallObjectMethodA, 4685 jni_CallBooleanMethod, 4686 jni_CallBooleanMethodV, 4687 jni_CallBooleanMethodA, 4688 jni_CallByteMethod, 4689 jni_CallByteMethodV, 4690 jni_CallByteMethodA, 4691 jni_CallCharMethod, 4692 jni_CallCharMethodV, 4693 jni_CallCharMethodA, 4694 jni_CallShortMethod, 4695 jni_CallShortMethodV, 4696 jni_CallShortMethodA, 4697 jni_CallIntMethod, 4698 jni_CallIntMethodV, 4699 jni_CallIntMethodA, 4700 jni_CallLongMethod, 4701 jni_CallLongMethodV, 4702 jni_CallLongMethodA, 4703 jni_CallFloatMethod, 4704 jni_CallFloatMethodV, 4705 jni_CallFloatMethodA, 4706 jni_CallDoubleMethod, 4707 jni_CallDoubleMethodV, 4708 jni_CallDoubleMethodA, 4709 jni_CallVoidMethod, 4710 jni_CallVoidMethodV, 4711 jni_CallVoidMethodA, 4712 4713 jni_CallNonvirtualObjectMethod, 4714 jni_CallNonvirtualObjectMethodV, 4715 jni_CallNonvirtualObjectMethodA, 4716 jni_CallNonvirtualBooleanMethod, 4717 jni_CallNonvirtualBooleanMethodV, 4718 jni_CallNonvirtualBooleanMethodA, 4719 jni_CallNonvirtualByteMethod, 4720 jni_CallNonvirtualByteMethodV, 4721 jni_CallNonvirtualByteMethodA, 4722 jni_CallNonvirtualCharMethod, 4723 jni_CallNonvirtualCharMethodV, 4724 jni_CallNonvirtualCharMethodA, 4725 jni_CallNonvirtualShortMethod, 4726 jni_CallNonvirtualShortMethodV, 4727 jni_CallNonvirtualShortMethodA, 4728 jni_CallNonvirtualIntMethod, 4729 jni_CallNonvirtualIntMethodV, 4730 jni_CallNonvirtualIntMethodA, 4731 jni_CallNonvirtualLongMethod, 4732 jni_CallNonvirtualLongMethodV, 4733 jni_CallNonvirtualLongMethodA, 4734 jni_CallNonvirtualFloatMethod, 4735 jni_CallNonvirtualFloatMethodV, 4736 jni_CallNonvirtualFloatMethodA, 4737 jni_CallNonvirtualDoubleMethod, 4738 jni_CallNonvirtualDoubleMethodV, 4739 jni_CallNonvirtualDoubleMethodA, 4740 jni_CallNonvirtualVoidMethod, 4741 jni_CallNonvirtualVoidMethodV, 4742 jni_CallNonvirtualVoidMethodA, 4743 4744 jni_GetFieldID, 4745 4746 jni_GetObjectField, 4747 jni_GetBooleanField, 4748 jni_GetByteField, 4749 jni_GetCharField, 4750 jni_GetShortField, 4751 jni_GetIntField, 4752 jni_GetLongField, 4753 jni_GetFloatField, 4754 jni_GetDoubleField, 4755 4756 jni_SetObjectField, 4757 jni_SetBooleanField, 4758 jni_SetByteField, 4759 jni_SetCharField, 4760 jni_SetShortField, 4761 jni_SetIntField, 4762 jni_SetLongField, 4763 jni_SetFloatField, 4764 jni_SetDoubleField, 4765 4766 jni_GetStaticMethodID, 4767 4768 jni_CallStaticObjectMethod, 4769 jni_CallStaticObjectMethodV, 4770 jni_CallStaticObjectMethodA, 4771 jni_CallStaticBooleanMethod, 4772 jni_CallStaticBooleanMethodV, 4773 jni_CallStaticBooleanMethodA, 4774 jni_CallStaticByteMethod, 4775 jni_CallStaticByteMethodV, 4776 jni_CallStaticByteMethodA, 4777 jni_CallStaticCharMethod, 4778 jni_CallStaticCharMethodV, 4779 jni_CallStaticCharMethodA, 4780 jni_CallStaticShortMethod, 4781 jni_CallStaticShortMethodV, 4782 jni_CallStaticShortMethodA, 4783 jni_CallStaticIntMethod, 4784 jni_CallStaticIntMethodV, 4785 jni_CallStaticIntMethodA, 4786 jni_CallStaticLongMethod, 4787 jni_CallStaticLongMethodV, 4788 jni_CallStaticLongMethodA, 4789 jni_CallStaticFloatMethod, 4790 jni_CallStaticFloatMethodV, 4791 jni_CallStaticFloatMethodA, 4792 jni_CallStaticDoubleMethod, 4793 jni_CallStaticDoubleMethodV, 4794 jni_CallStaticDoubleMethodA, 4795 jni_CallStaticVoidMethod, 4796 jni_CallStaticVoidMethodV, 4797 jni_CallStaticVoidMethodA, 4798 4799 jni_GetStaticFieldID, 4800 4801 jni_GetStaticObjectField, 4802 jni_GetStaticBooleanField, 4803 jni_GetStaticByteField, 4804 jni_GetStaticCharField, 4805 jni_GetStaticShortField, 4806 jni_GetStaticIntField, 4807 jni_GetStaticLongField, 4808 jni_GetStaticFloatField, 4809 jni_GetStaticDoubleField, 4810 4811 jni_SetStaticObjectField, 4812 jni_SetStaticBooleanField, 4813 jni_SetStaticByteField, 4814 jni_SetStaticCharField, 4815 jni_SetStaticShortField, 4816 jni_SetStaticIntField, 4817 jni_SetStaticLongField, 4818 jni_SetStaticFloatField, 4819 jni_SetStaticDoubleField, 4820 4821 jni_NewString, 4822 jni_GetStringLength, 4823 jni_GetStringChars, 4824 jni_ReleaseStringChars, 4825 4826 jni_NewStringUTF, 4827 jni_GetStringUTFLength, 4828 jni_GetStringUTFChars, 4829 jni_ReleaseStringUTFChars, 4830 4831 jni_GetArrayLength, 4832 4833 jni_NewObjectArray, 4834 jni_GetObjectArrayElement, 4835 jni_SetObjectArrayElement, 4836 4837 jni_NewBooleanArray, 4838 jni_NewByteArray, 4839 jni_NewCharArray, 4840 jni_NewShortArray, 4841 jni_NewIntArray, 4842 jni_NewLongArray, 4843 jni_NewFloatArray, 4844 jni_NewDoubleArray, 4845 4846 jni_GetBooleanArrayElements, 4847 jni_GetByteArrayElements, 4848 jni_GetCharArrayElements, 4849 jni_GetShortArrayElements, 4850 jni_GetIntArrayElements, 4851 jni_GetLongArrayElements, 4852 jni_GetFloatArrayElements, 4853 jni_GetDoubleArrayElements, 4854 4855 jni_ReleaseBooleanArrayElements, 4856 jni_ReleaseByteArrayElements, 4857 jni_ReleaseCharArrayElements, 4858 jni_ReleaseShortArrayElements, 4859 jni_ReleaseIntArrayElements, 4860 jni_ReleaseLongArrayElements, 4861 jni_ReleaseFloatArrayElements, 4862 jni_ReleaseDoubleArrayElements, 4863 4864 jni_GetBooleanArrayRegion, 4865 jni_GetByteArrayRegion, 4866 jni_GetCharArrayRegion, 4867 jni_GetShortArrayRegion, 4868 jni_GetIntArrayRegion, 4869 jni_GetLongArrayRegion, 4870 jni_GetFloatArrayRegion, 4871 jni_GetDoubleArrayRegion, 4872 4873 jni_SetBooleanArrayRegion, 4874 jni_SetByteArrayRegion, 4875 jni_SetCharArrayRegion, 4876 jni_SetShortArrayRegion, 4877 jni_SetIntArrayRegion, 4878 jni_SetLongArrayRegion, 4879 jni_SetFloatArrayRegion, 4880 jni_SetDoubleArrayRegion, 4881 4882 jni_RegisterNatives, 4883 jni_UnregisterNatives, 4884 4885 jni_MonitorEnter, 4886 jni_MonitorExit, 4887 4888 jni_GetJavaVM, 4889 4890 jni_GetStringRegion, 4891 jni_GetStringUTFRegion, 4892 4893 jni_GetPrimitiveArrayCritical, 4894 jni_ReleasePrimitiveArrayCritical, 4895 4896 jni_GetStringCritical, 4897 jni_ReleaseStringCritical, 4898 4899 jni_NewWeakGlobalRef, 4900 jni_DeleteWeakGlobalRef, 4901 4902 jni_ExceptionCheck, 4903 4904 jni_NewDirectByteBuffer, 4905 jni_GetDirectBufferAddress, 4906 jni_GetDirectBufferCapacity, 4907 4908 // New 1_6 features 4909 4910 jni_GetObjectRefType 4911 }; 4912 4913 4914 // For jvmti use to modify jni function table. 4915 // Java threads in native contiues to run until it is transitioned 4916 // to VM at safepoint. Before the transition or before it is blocked 4917 // for safepoint it may access jni function table. VM could crash if 4918 // any java thread access the jni function table in the middle of memcpy. 4919 // To avoid this each function pointers are copied automically. 4920 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) { 4921 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); 4922 intptr_t *a = (intptr_t *) jni_functions(); 4923 intptr_t *b = (intptr_t *) new_jni_NativeInterface; 4924 for (uint i=0; i < sizeof(struct JNINativeInterface_)/sizeof(void *); i++) { 4925 Atomic::store_ptr(*b++, a++); 4926 } 4927 } 4928 4929 void quicken_jni_functions() { 4930 // Replace Get<Primitive>Field with fast versions 4931 if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access() 4932 && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls 4933 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2) 4934 // windows x86 currently needs SEH wrapper and the gain of the fast 4935 // versions currently isn't certain for server vm on uniprocessor. 4936 && os::is_MP() 4937 #endif 4938 ) { 4939 address func; 4940 func = JNI_FastGetField::generate_fast_get_boolean_field(); 4941 if (func != (address)-1) { 4942 jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func; 4943 } 4944 func = JNI_FastGetField::generate_fast_get_byte_field(); 4945 if (func != (address)-1) { 4946 jni_NativeInterface.GetByteField = (GetByteField_t)func; 4947 } 4948 func = JNI_FastGetField::generate_fast_get_char_field(); 4949 if (func != (address)-1) { 4950 jni_NativeInterface.GetCharField = (GetCharField_t)func; 4951 } 4952 func = JNI_FastGetField::generate_fast_get_short_field(); 4953 if (func != (address)-1) { 4954 jni_NativeInterface.GetShortField = (GetShortField_t)func; 4955 } 4956 func = JNI_FastGetField::generate_fast_get_int_field(); 4957 if (func != (address)-1) { 4958 jni_NativeInterface.GetIntField = (GetIntField_t)func; 4959 } 4960 func = JNI_FastGetField::generate_fast_get_long_field(); 4961 if (func != (address)-1) { 4962 jni_NativeInterface.GetLongField = (GetLongField_t)func; 4963 } 4964 func = JNI_FastGetField::generate_fast_get_float_field(); 4965 if (func != (address)-1) { 4966 jni_NativeInterface.GetFloatField = (GetFloatField_t)func; 4967 } 4968 func = JNI_FastGetField::generate_fast_get_double_field(); 4969 if (func != (address)-1) { 4970 jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func; 4971 } 4972 } 4973 } 4974 4975 // Returns the function structure 4976 struct JNINativeInterface_* jni_functions() { 4977 #if INCLUDE_JNI_CHECK 4978 if (CheckJNICalls) return jni_functions_check(); 4979 #endif // INCLUDE_JNI_CHECK 4980 return &jni_NativeInterface; 4981 } 4982 4983 // Returns the function structure 4984 struct JNINativeInterface_* jni_functions_nocheck() { 4985 return &jni_NativeInterface; 4986 } 4987 4988 4989 // Invocation API 4990 4991 4992 // Forward declaration 4993 extern const struct JNIInvokeInterface_ jni_InvokeInterface; 4994 4995 // Global invocation API vars 4996 volatile jint vm_created = 0; 4997 // Indicate whether it is safe to recreate VM 4998 volatile jint safe_to_recreate_vm = 1; 4999 struct JavaVM_ main_vm = {&jni_InvokeInterface}; 5000 5001 5002 #define JAVASTACKSIZE (400 * 1024) /* Default size of a thread java stack */ 5003 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL }; 5004 5005 #ifndef USDT2 5006 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*); 5007 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint); 5008 #else /* USDT2 */ 5009 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint 5010 , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref)); 5011 #endif /* USDT2 */ 5012 5013 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) { 5014 #ifndef USDT2 5015 HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_); 5016 #else /* USDT2 */ 5017 HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY( 5018 args_); 5019 #endif /* USDT2 */ 5020 JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_; 5021 jint ret = JNI_ERR; 5022 DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret); 5023 5024 if (Threads::is_supported_jni_version(args->version)) { 5025 ret = JNI_OK; 5026 } 5027 // 1.1 style no longer supported in hotspot. 5028 // According the JNI spec, we should update args->version on return. 5029 // We also use the structure to communicate with launcher about default 5030 // stack size. 5031 if (args->version == JNI_VERSION_1_1) { 5032 args->version = JNI_VERSION_1_2; 5033 // javaStackSize is int in arguments structure 5034 assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow"); 5035 args->javaStackSize = (jint)(ThreadStackSize * K); 5036 } 5037 return ret; 5038 } 5039 5040 #ifndef PRODUCT 5041 5042 #include "gc_interface/collectedHeap.hpp" 5043 #include "utilities/quickSort.hpp" 5044 #if INCLUDE_VM_STRUCTS 5045 #include "runtime/vmStructs.hpp" 5046 #endif 5047 5048 #define run_unit_test(unit_test_function_call) \ 5049 tty->print_cr("Running test: " #unit_test_function_call); \ 5050 unit_test_function_call 5051 5052 void execute_internal_vm_tests() { 5053 if (ExecuteInternalVMTests) { 5054 tty->print_cr("Running internal VM tests"); 5055 run_unit_test(arrayOopDesc::test_max_array_length()); 5056 run_unit_test(CollectedHeap::test_is_in()); 5057 run_unit_test(QuickSort::test_quick_sort()); 5058 run_unit_test(AltHashing::test_alt_hash()); 5059 #if INCLUDE_VM_STRUCTS 5060 run_unit_test(VMStructs::test()); 5061 #endif 5062 tty->print_cr("All internal VM tests passed"); 5063 } 5064 } 5065 5066 #undef run_unit_test 5067 5068 #endif 5069 5070 #ifndef USDT2 5071 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args); 5072 DT_RETURN_MARK_DECL(CreateJavaVM, jint); 5073 #else /* USDT2 */ 5074 DT_RETURN_MARK_DECL(CreateJavaVM, jint 5075 , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref)); 5076 #endif /* USDT2 */ 5077 5078 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) { 5079 #ifndef USDT2 5080 HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args); 5081 #else /* USDT2 */ 5082 HOTSPOT_JNI_CREATEJAVAVM_ENTRY( 5083 (void **) vm, penv, args); 5084 #endif /* USDT2 */ 5085 5086 jint result = JNI_ERR; 5087 DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result); 5088 5089 // We're about to use Atomic::xchg for synchronization. Some Zero 5090 // platforms use the GCC builtin __sync_lock_test_and_set for this, 5091 // but __sync_lock_test_and_set is not guaranteed to do what we want 5092 // on all architectures. So we check it works before relying on it. 5093 #if defined(ZERO) && defined(ASSERT) 5094 { 5095 jint a = 0xcafebabe; 5096 jint b = Atomic::xchg(0xdeadbeef, &a); 5097 void *c = &a; 5098 void *d = Atomic::xchg_ptr(&b, &c); 5099 assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works"); 5100 assert(c == &b && d == &a, "Atomic::xchg_ptr() works"); 5101 } 5102 #endif // ZERO && ASSERT 5103 5104 // At the moment it's only possible to have one Java VM, 5105 // since some of the runtime state is in global variables. 5106 5107 // We cannot use our mutex locks here, since they only work on 5108 // Threads. We do an atomic compare and exchange to ensure only 5109 // one thread can call this method at a time 5110 5111 // We use Atomic::xchg rather than Atomic::add/dec since on some platforms 5112 // the add/dec implementations are dependent on whether we are running 5113 // on a multiprocessor, and at this stage of initialization the os::is_MP 5114 // function used to determine this will always return false. Atomic::xchg 5115 // does not have this problem. 5116 if (Atomic::xchg(1, &vm_created) == 1) { 5117 return JNI_ERR; // already created, or create attempt in progress 5118 } 5119 if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) { 5120 return JNI_ERR; // someone tried and failed and retry not allowed. 5121 } 5122 5123 assert(vm_created == 1, "vm_created is true during the creation"); 5124 5125 /** 5126 * Certain errors during initialization are recoverable and do not 5127 * prevent this method from being called again at a later time 5128 * (perhaps with different arguments). However, at a certain 5129 * point during initialization if an error occurs we cannot allow 5130 * this function to be called again (or it will crash). In those 5131 * situations, the 'canTryAgain' flag is set to false, which atomically 5132 * sets safe_to_recreate_vm to 1, such that any new call to 5133 * JNI_CreateJavaVM will immediately fail using the above logic. 5134 */ 5135 bool can_try_again = true; 5136 5137 result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again); 5138 if (result == JNI_OK) { 5139 JavaThread *thread = JavaThread::current(); 5140 /* thread is thread_in_vm here */ 5141 *vm = (JavaVM *)(&main_vm); 5142 *(JNIEnv**)penv = thread->jni_environment(); 5143 5144 // Tracks the time application was running before GC 5145 RuntimeService::record_application_start(); 5146 5147 // Notify JVMTI 5148 if (JvmtiExport::should_post_thread_life()) { 5149 JvmtiExport::post_thread_start(thread); 5150 } 5151 5152 EVENT_BEGIN(TraceEventThreadStart, event); 5153 EVENT_COMMIT(event, 5154 EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj()))); 5155 5156 // Check if we should compile all classes on bootclasspath 5157 NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();) 5158 NOT_PRODUCT(if (ReplayCompiles) ciReplay::replay(thread);) 5159 // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving. 5160 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); 5161 } else { 5162 if (can_try_again) { 5163 // reset safe_to_recreate_vm to 1 so that retrial would be possible 5164 safe_to_recreate_vm = 1; 5165 } 5166 5167 // Creation failed. We must reset vm_created 5168 *vm = 0; 5169 *(JNIEnv**)penv = 0; 5170 // reset vm_created last to avoid race condition. Use OrderAccess to 5171 // control both compiler and architectural-based reordering. 5172 OrderAccess::release_store(&vm_created, 0); 5173 } 5174 5175 NOT_PRODUCT(test_error_handler(ErrorHandlerTest)); 5176 NOT_PRODUCT(execute_internal_vm_tests()); 5177 return result; 5178 } 5179 5180 #ifndef USDT2 5181 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \ 5182 JavaVM**, jsize, jsize*); 5183 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint); 5184 #endif /* !USDT2 */ 5185 5186 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) { 5187 // See bug 4367188, the wrapper can sometimes cause VM crashes 5188 // JNIWrapper("GetCreatedJavaVMs"); 5189 #ifndef USDT2 5190 HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \ 5191 vm_buf, bufLen, numVMs); 5192 #else /* USDT2 */ 5193 HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY( 5194 (void **) vm_buf, bufLen, (uintptr_t *) numVMs); 5195 #endif /* USDT2 */ 5196 if (vm_created) { 5197 if (numVMs != NULL) *numVMs = 1; 5198 if (bufLen > 0) *vm_buf = (JavaVM *)(&main_vm); 5199 } else { 5200 if (numVMs != NULL) *numVMs = 0; 5201 } 5202 #ifndef USDT2 5203 HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK); 5204 #else /* USDT2 */ 5205 HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN( 5206 JNI_OK); 5207 #endif /* USDT2 */ 5208 return JNI_OK; 5209 } 5210 5211 extern "C" { 5212 5213 #ifndef USDT2 5214 DT_RETURN_MARK_DECL(DestroyJavaVM, jint); 5215 #else /* USDT2 */ 5216 DT_RETURN_MARK_DECL(DestroyJavaVM, jint 5217 , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref)); 5218 #endif /* USDT2 */ 5219 5220 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) { 5221 #ifndef USDT2 5222 DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm); 5223 #else /* USDT2 */ 5224 HOTSPOT_JNI_DESTROYJAVAVM_ENTRY( 5225 vm); 5226 #endif /* USDT2 */ 5227 jint res = JNI_ERR; 5228 DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res); 5229 5230 if (!vm_created) { 5231 res = JNI_ERR; 5232 return res; 5233 } 5234 5235 JNIWrapper("DestroyJavaVM"); 5236 JNIEnv *env; 5237 JavaVMAttachArgs destroyargs; 5238 destroyargs.version = CurrentVersion; 5239 destroyargs.name = (char *)"DestroyJavaVM"; 5240 destroyargs.group = NULL; 5241 res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs); 5242 if (res != JNI_OK) { 5243 return res; 5244 } 5245 5246 // Since this is not a JVM_ENTRY we have to set the thread state manually before entering. 5247 JavaThread* thread = JavaThread::current(); 5248 ThreadStateTransition::transition_from_native(thread, _thread_in_vm); 5249 if (Threads::destroy_vm()) { 5250 // Should not change thread state, VM is gone 5251 vm_created = false; 5252 res = JNI_OK; 5253 return res; 5254 } else { 5255 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); 5256 res = JNI_ERR; 5257 return res; 5258 } 5259 } 5260 5261 5262 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) { 5263 JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args; 5264 5265 // Check below commented out from JDK1.2fcs as well 5266 /* 5267 if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) { 5268 return JNI_EVERSION; 5269 } 5270 */ 5271 5272 Thread* t = ThreadLocalStorage::get_thread_slow(); 5273 if (t != NULL) { 5274 // If the thread has been attached this operation is a no-op 5275 *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment(); 5276 return JNI_OK; 5277 } 5278 5279 // Create a thread and mark it as attaching so it will be skipped by the 5280 // ThreadsListEnumerator - see CR 6404306 5281 JavaThread* thread = new JavaThread(true); 5282 5283 // Set correct safepoint info. The thread is going to call into Java when 5284 // initializing the Java level thread object. Hence, the correct state must 5285 // be set in order for the Safepoint code to deal with it correctly. 5286 thread->set_thread_state(_thread_in_vm); 5287 // Must do this before initialize_thread_local_storage 5288 thread->record_stack_base_and_size(); 5289 5290 thread->initialize_thread_local_storage(); 5291 5292 if (!os::create_attached_thread(thread)) { 5293 delete thread; 5294 return JNI_ERR; 5295 } 5296 // Enable stack overflow checks 5297 thread->create_stack_guard_pages(); 5298 5299 thread->initialize_tlab(); 5300 5301 thread->cache_global_variables(); 5302 5303 // Crucial that we do not have a safepoint check for this thread, since it has 5304 // not been added to the Thread list yet. 5305 { Threads_lock->lock_without_safepoint_check(); 5306 // This must be inside this lock in order to get FullGCALot to work properly, i.e., to 5307 // avoid this thread trying to do a GC before it is added to the thread-list 5308 thread->set_active_handles(JNIHandleBlock::allocate_block()); 5309 Threads::add(thread, daemon); 5310 Threads_lock->unlock(); 5311 } 5312 // Create thread group and name info from attach arguments 5313 oop group = NULL; 5314 char* thread_name = NULL; 5315 if (args != NULL && Threads::is_supported_jni_version(args->version)) { 5316 group = JNIHandles::resolve(args->group); 5317 thread_name = args->name; // may be NULL 5318 } 5319 if (group == NULL) group = Universe::main_thread_group(); 5320 5321 // Create Java level thread object and attach it to this thread 5322 bool attach_failed = false; 5323 { 5324 EXCEPTION_MARK; 5325 HandleMark hm(THREAD); 5326 Handle thread_group(THREAD, group); 5327 thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD); 5328 if (HAS_PENDING_EXCEPTION) { 5329 CLEAR_PENDING_EXCEPTION; 5330 // cleanup outside the handle mark. 5331 attach_failed = true; 5332 } 5333 } 5334 5335 if (attach_failed) { 5336 // Added missing cleanup 5337 thread->cleanup_failed_attach_current_thread(); 5338 return JNI_ERR; 5339 } 5340 5341 // mark the thread as no longer attaching 5342 // this uses a fence to push the change through so we don't have 5343 // to regrab the threads_lock 5344 thread->set_done_attaching_via_jni(); 5345 5346 // Set java thread status. 5347 java_lang_Thread::set_thread_status(thread->threadObj(), 5348 java_lang_Thread::RUNNABLE); 5349 5350 // Notify the debugger 5351 if (JvmtiExport::should_post_thread_life()) { 5352 JvmtiExport::post_thread_start(thread); 5353 } 5354 5355 EVENT_BEGIN(TraceEventThreadStart, event); 5356 EVENT_COMMIT(event, 5357 EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj()))); 5358 5359 *(JNIEnv**)penv = thread->jni_environment(); 5360 5361 // Now leaving the VM, so change thread_state. This is normally automatically taken care 5362 // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by 5363 // using ThreadStateTransition::transition, we do a callback to the safepoint code if 5364 // needed. 5365 5366 ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native); 5367 5368 // Perform any platform dependent FPU setup 5369 os::setup_fpu(); 5370 5371 return JNI_OK; 5372 } 5373 5374 5375 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) { 5376 #ifndef USDT2 5377 DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args); 5378 #else /* USDT2 */ 5379 HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY( 5380 vm, penv, _args); 5381 #endif /* USDT2 */ 5382 if (!vm_created) { 5383 #ifndef USDT2 5384 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR); 5385 #else /* USDT2 */ 5386 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN( 5387 (uint32_t) JNI_ERR); 5388 #endif /* USDT2 */ 5389 return JNI_ERR; 5390 } 5391 5392 JNIWrapper("AttachCurrentThread"); 5393 jint ret = attach_current_thread(vm, penv, _args, false); 5394 #ifndef USDT2 5395 DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret); 5396 #else /* USDT2 */ 5397 HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN( 5398 ret); 5399 #endif /* USDT2 */ 5400 return ret; 5401 } 5402 5403 5404 jint JNICALL jni_DetachCurrentThread(JavaVM *vm) { 5405 #ifndef USDT2 5406 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm); 5407 #else /* USDT2 */ 5408 HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY( 5409 vm); 5410 #endif /* USDT2 */ 5411 VM_Exit::block_if_vm_exited(); 5412 5413 JNIWrapper("DetachCurrentThread"); 5414 5415 // If the thread has been deattacted the operations is a no-op 5416 if (ThreadLocalStorage::thread() == NULL) { 5417 #ifndef USDT2 5418 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK); 5419 #else /* USDT2 */ 5420 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN( 5421 JNI_OK); 5422 #endif /* USDT2 */ 5423 return JNI_OK; 5424 } 5425 5426 JavaThread* thread = JavaThread::current(); 5427 if (thread->has_last_Java_frame()) { 5428 #ifndef USDT2 5429 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR); 5430 #else /* USDT2 */ 5431 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN( 5432 (uint32_t) JNI_ERR); 5433 #endif /* USDT2 */ 5434 // Can't detach a thread that's running java, that can't work. 5435 return JNI_ERR; 5436 } 5437 5438 // Safepoint support. Have to do call-back to safepoint code, if in the 5439 // middel of a safepoint operation 5440 ThreadStateTransition::transition_from_native(thread, _thread_in_vm); 5441 5442 // XXX: Note that JavaThread::exit() call below removes the guards on the 5443 // stack pages set up via enable_stack_{red,yellow}_zone() calls 5444 // above in jni_AttachCurrentThread. Unfortunately, while the setting 5445 // of the guards is visible in jni_AttachCurrentThread above, 5446 // the removal of the guards is buried below in JavaThread::exit() 5447 // here. The abstraction should be more symmetrically either exposed 5448 // or hidden (e.g. it could probably be hidden in the same 5449 // (platform-dependent) methods where we do alternate stack 5450 // maintenance work?) 5451 thread->exit(false, JavaThread::jni_detach); 5452 delete thread; 5453 5454 #ifndef USDT2 5455 DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK); 5456 #else /* USDT2 */ 5457 HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN( 5458 JNI_OK); 5459 #endif /* USDT2 */ 5460 return JNI_OK; 5461 } 5462 5463 #ifndef USDT2 5464 DT_RETURN_MARK_DECL(GetEnv, jint); 5465 #else /* USDT2 */ 5466 DT_RETURN_MARK_DECL(GetEnv, jint 5467 , HOTSPOT_JNI_GETENV_RETURN(_ret_ref)); 5468 #endif /* USDT2 */ 5469 5470 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) { 5471 #ifndef USDT2 5472 DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version); 5473 #else /* USDT2 */ 5474 HOTSPOT_JNI_GETENV_ENTRY( 5475 vm, penv, version); 5476 #endif /* USDT2 */ 5477 jint ret = JNI_ERR; 5478 DT_RETURN_MARK(GetEnv, jint, (const jint&)ret); 5479 5480 if (!vm_created) { 5481 *penv = NULL; 5482 ret = JNI_EDETACHED; 5483 return ret; 5484 } 5485 5486 if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) { 5487 return ret; 5488 } 5489 5490 #ifndef JVMPI_VERSION_1 5491 // need these in order to be polite about older agents 5492 #define JVMPI_VERSION_1 ((jint)0x10000001) 5493 #define JVMPI_VERSION_1_1 ((jint)0x10000002) 5494 #define JVMPI_VERSION_1_2 ((jint)0x10000003) 5495 #endif // !JVMPI_VERSION_1 5496 5497 Thread* thread = ThreadLocalStorage::thread(); 5498 if (thread != NULL && thread->is_Java_thread()) { 5499 if (Threads::is_supported_jni_version_including_1_1(version)) { 5500 *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment(); 5501 ret = JNI_OK; 5502 return ret; 5503 5504 } else if (version == JVMPI_VERSION_1 || 5505 version == JVMPI_VERSION_1_1 || 5506 version == JVMPI_VERSION_1_2) { 5507 tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported."); 5508 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); 5509 ret = JNI_EVERSION; 5510 return ret; 5511 } else if (JvmtiExport::is_jvmdi_version(version)) { 5512 tty->print_cr("FATAL ERROR: JVMDI is no longer supported."); 5513 tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI)."); 5514 ret = JNI_EVERSION; 5515 return ret; 5516 } else { 5517 *penv = NULL; 5518 ret = JNI_EVERSION; 5519 return ret; 5520 } 5521 } else { 5522 *penv = NULL; 5523 ret = JNI_EDETACHED; 5524 return ret; 5525 } 5526 } 5527 5528 5529 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) { 5530 #ifndef USDT2 5531 DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args); 5532 #else /* USDT2 */ 5533 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY( 5534 vm, penv, _args); 5535 #endif /* USDT2 */ 5536 if (!vm_created) { 5537 #ifndef USDT2 5538 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR); 5539 #else /* USDT2 */ 5540 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN( 5541 (uint32_t) JNI_ERR); 5542 #endif /* USDT2 */ 5543 return JNI_ERR; 5544 } 5545 5546 JNIWrapper("AttachCurrentThreadAsDaemon"); 5547 jint ret = attach_current_thread(vm, penv, _args, true); 5548 #ifndef USDT2 5549 DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret); 5550 #else /* USDT2 */ 5551 HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN( 5552 ret); 5553 #endif /* USDT2 */ 5554 return ret; 5555 } 5556 5557 5558 } // End extern "C" 5559 5560 const struct JNIInvokeInterface_ jni_InvokeInterface = { 5561 NULL, 5562 NULL, 5563 NULL, 5564 5565 jni_DestroyJavaVM, 5566 jni_AttachCurrentThread, 5567 jni_DetachCurrentThread, 5568 jni_GetEnv, 5569 jni_AttachCurrentThreadAsDaemon 5570 };