1 /*
   2  * Copyright (c) 1997, 2018, 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 #include "jfr/jfrEvents.hpp"
  36 #include "jfr/support/jfrThreadId.hpp"
  37 #include "utilities/macros.hpp"
  38 #include "utilities/ostream.hpp"
  39 #if INCLUDE_ALL_GCS
  40 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"
  41 #endif // INCLUDE_ALL_GCS
  42 #include "memory/allocation.hpp"
  43 #include "memory/allocation.inline.hpp"
  44 #include "memory/gcLocker.inline.hpp"
  45 #include "memory/oopFactory.hpp"
  46 #include "memory/universe.inline.hpp"
  47 #include "oops/instanceKlass.hpp"
  48 #include "oops/instanceOop.hpp"
  49 #include "oops/markOop.hpp"
  50 #include "oops/method.hpp"
  51 #include "oops/objArrayKlass.hpp"
  52 #include "oops/objArrayOop.hpp"
  53 #include "oops/oop.inline.hpp"
  54 #include "oops/symbol.hpp"
  55 #include "oops/typeArrayKlass.hpp"
  56 #include "oops/typeArrayOop.hpp"
  57 #include "prims/jni.h"
  58 #include "prims/jniCheck.hpp"
  59 #include "prims/jniExport.hpp"
  60 #include "prims/jniFastGetField.hpp"
  61 #include "prims/jvm.h"
  62 #include "prims/jvm_misc.hpp"
  63 #include "prims/jvmtiExport.hpp"
  64 #include "prims/jvmtiThreadState.hpp"
  65 #include "runtime/compilationPolicy.hpp"
  66 #include "runtime/fieldDescriptor.hpp"
  67 #include "runtime/fprofiler.hpp"
  68 #include "runtime/handles.inline.hpp"
  69 #include "runtime/interfaceSupport.hpp"
  70 #include "runtime/java.hpp"
  71 #include "runtime/javaCalls.hpp"
  72 #include "runtime/jfieldIDWorkaround.hpp"
  73 #include "runtime/orderAccess.inline.hpp"
  74 #include "runtime/reflection.hpp"
  75 #include "runtime/sharedRuntime.hpp"
  76 #include "runtime/signature.hpp"
  77 #include "runtime/thread.inline.hpp"
  78 #include "runtime/vm_operations.hpp"
  79 #include "services/memTracker.hpp"
  80 #include "services/runtimeService.hpp"
  81 #include "utilities/defaultStream.hpp"
  82 #include "utilities/dtrace.hpp"
  83 #include "utilities/events.hpp"
  84 #include "utilities/histogram.hpp"
  85 #ifdef TARGET_OS_FAMILY_linux
  86 # include "os_linux.inline.hpp"
  87 #endif
  88 #ifdef TARGET_OS_FAMILY_solaris
  89 # include "os_solaris.inline.hpp"
  90 #endif
  91 #ifdef TARGET_OS_FAMILY_windows
  92 # include "os_windows.inline.hpp"
  93 #endif
  94 #ifdef TARGET_OS_FAMILY_bsd
  95 # include "os_bsd.inline.hpp"
  96 #endif
  97 
  98 static jint CurrentVersion = JNI_VERSION_1_8;
  99 
 100 
 101 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace
 102 // '-return' probe regardless of the return path is taken out of the function.
 103 // Methods that have multiple return paths use this to avoid having to
 104 // instrument each return path.  Methods that use CHECK or THROW must use this
 105 // since those macros can cause an immedate uninstrumented return.
 106 //
 107 // In order to get the return value, a reference to the variable containing
 108 // the return value must be passed to the contructor of the object, and
 109 // the return value must be set before return (since the mark object has
 110 // a reference to it).
 111 //
 112 // Example:
 113 // DT_RETURN_MARK_DECL(SomeFunc, int);
 114 // JNI_ENTRY(int, SomeFunc, ...)
 115 //   int return_value = 0;
 116 //   DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);
 117 //   foo(CHECK_0)
 118 //   return_value = 5;
 119 //   return return_value;
 120 // JNI_END
 121 #ifndef USDT2
 122 #define DT_RETURN_MARK_DECL(name, type)                                    \
 123   HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type);                \
 124   DTRACE_ONLY(                                                             \
 125     class DTraceReturnProbeMark_##name {                                   \
 126      public:                                                               \
 127       const type& _ret_ref;                                                \
 128       DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {}         \
 129       ~DTraceReturnProbeMark_##name() {                                    \
 130         HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref);           \
 131       }                                                                    \
 132     }                                                                      \
 133   )
 134 // Void functions are simpler since there's no return value
 135 #define DT_VOID_RETURN_MARK_DECL(name)                                     \
 136   HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return);                      \
 137   DTRACE_ONLY(                                                             \
 138     class DTraceReturnProbeMark_##name {                                   \
 139      public:                                                               \
 140       ~DTraceReturnProbeMark_##name() {                                    \
 141         HS_DTRACE_PROBE0(hotspot_jni, name##__return);                     \
 142       }                                                                    \
 143     }                                                                      \
 144   )
 145 
 146 #else /* USDT2 */
 147 
 148 #define DT_RETURN_MARK_DECL(name, type, probe)                             \
 149   DTRACE_ONLY(                                                             \
 150     class DTraceReturnProbeMark_##name {                                   \
 151      public:                                                               \
 152       const type& _ret_ref;                                                \
 153       DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {}         \
 154       ~DTraceReturnProbeMark_##name() {                                    \
 155         probe;                                                             \
 156       }                                                                    \
 157     }                                                                      \
 158   )
 159 // Void functions are simpler since there's no return value
 160 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \
 161   DTRACE_ONLY(                                                             \
 162     class DTraceReturnProbeMark_##name {                                   \
 163      public:                                                               \
 164       ~DTraceReturnProbeMark_##name() {                                    \
 165         probe;                                                             \
 166       }                                                                    \
 167     }                                                                      \
 168   )
 169 #endif /* USDT2 */
 170 
 171 // Place these macros in the function to mark the return.  Non-void
 172 // functions need the type and address of the return value.
 173 #define DT_RETURN_MARK(name, type, ref) \
 174   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) )
 175 #define DT_VOID_RETURN_MARK(name) \
 176   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )
 177 
 178 
 179 // Use these to select distinct code for floating-point vs. non-floating point
 180 // situations.  Used from within common macros where we need slightly
 181 // different behavior for Float/Double
 182 #define FP_SELECT_Boolean(intcode, fpcode) intcode
 183 #define FP_SELECT_Byte(intcode, fpcode)    intcode
 184 #define FP_SELECT_Char(intcode, fpcode)    intcode
 185 #define FP_SELECT_Short(intcode, fpcode)   intcode
 186 #define FP_SELECT_Object(intcode, fpcode)  intcode
 187 #define FP_SELECT_Int(intcode, fpcode)     intcode
 188 #define FP_SELECT_Long(intcode, fpcode)    intcode
 189 #define FP_SELECT_Float(intcode, fpcode)   fpcode
 190 #define FP_SELECT_Double(intcode, fpcode)  fpcode
 191 #define FP_SELECT(TypeName, intcode, fpcode) \
 192   FP_SELECT_##TypeName(intcode, fpcode)
 193 
 194 #define COMMA ,
 195 
 196 // Choose DT_RETURN_MARK macros  based on the type: float/double -> void
 197 // (dtrace doesn't do FP yet)
 198 #ifndef USDT2
 199 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \
 200   FP_SELECT(TypeName, \
 201     DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )
 202 #else /* USDT2 */
 203 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe)    \
 204   FP_SELECT(TypeName, \
 205     DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) )
 206 #endif /* USDT2 */
 207 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \
 208   FP_SELECT(TypeName, \
 209     DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) )
 210 
 211 
 212 // out-of-line helpers for class jfieldIDWorkaround:
 213 
 214 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) {
 215   if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) {
 216     uintptr_t as_uint = (uintptr_t) id;
 217     intptr_t offset = raw_instance_offset(id);
 218     if (is_checked_jfieldID(id)) {
 219       if (!klass_hash_ok(k, id)) {
 220         return false;
 221       }
 222     }
 223     return InstanceKlass::cast(k)->contains_field_offset(offset);
 224   } else {
 225     JNIid* result = (JNIid*) id;
 226 #ifdef ASSERT
 227     return result != NULL && result->is_static_field_id();
 228 #else
 229     return result != NULL;
 230 #endif
 231   }
 232 }
 233 
 234 
 235 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) {
 236   if (offset <= small_offset_mask) {
 237     Klass* field_klass = k;
 238     Klass* super_klass = field_klass->super();
 239     // With compressed oops the most super class with nonstatic fields would
 240     // be the owner of fields embedded in the header.
 241     while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() &&
 242            InstanceKlass::cast(super_klass)->contains_field_offset(offset)) {
 243       field_klass = super_klass;   // super contains the field also
 244       super_klass = field_klass->super();
 245     }
 246     debug_only(No_Safepoint_Verifier nosafepoint;)
 247     uintptr_t klass_hash = field_klass->identity_hash();
 248     return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place;
 249   } else {
 250 #if 0
 251     #ifndef PRODUCT
 252     {
 253       ResourceMark rm;
 254       warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name());
 255     }
 256     #endif
 257 #endif
 258     return 0;
 259   }
 260 }
 261 
 262 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) {
 263   uintptr_t as_uint = (uintptr_t) id;
 264   intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask;
 265   do {
 266     debug_only(No_Safepoint_Verifier nosafepoint;)
 267     // Could use a non-blocking query for identity_hash here...
 268     if ((k->identity_hash() & klass_mask) == klass_hash)
 269       return true;
 270     k = k->super();
 271   } while (k != NULL);
 272   return false;
 273 }
 274 
 275 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) {
 276   guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" );
 277   uintptr_t as_uint = (uintptr_t) id;
 278   intptr_t offset = raw_instance_offset(id);
 279   if (VerifyJNIFields) {
 280     if (is_checked_jfieldID(id)) {
 281       guarantee(klass_hash_ok(k, id),
 282     "Bug in native code: jfieldID class must match object");
 283     } else {
 284 #if 0
 285       #ifndef PRODUCT
 286       if (Verbose) {
 287   ResourceMark rm;
 288   warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name());
 289       }
 290       #endif
 291 #endif
 292     }
 293   }
 294   guarantee(InstanceKlass::cast(k)->contains_field_offset(offset),
 295       "Bug in native code: jfieldID offset must address interior of object");
 296 }
 297 
 298 // Wrapper to trace JNI functions
 299 
 300 #ifdef ASSERT
 301   Histogram* JNIHistogram;
 302   static volatile jint JNIHistogram_lock = 0;
 303 
 304   class JNITraceWrapper : public StackObj {
 305    public:
 306     JNITraceWrapper(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {
 307       if (TraceJNICalls) {
 308         va_list ap;
 309         va_start(ap, format);
 310         tty->print("JNI ");
 311         tty->vprint_cr(format, ap);
 312         va_end(ap);
 313       }
 314     }
 315   };
 316 
 317   class JNIHistogramElement : public HistogramElement {
 318     public:
 319      JNIHistogramElement(const char* name);
 320   };
 321 
 322   JNIHistogramElement::JNIHistogramElement(const char* elementName) {
 323     _name = elementName;
 324     uintx count = 0;
 325 
 326     while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) {
 327       while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) {
 328         count +=1;
 329         if ( (WarnOnStalledSpinLock > 0)
 330           && (count % WarnOnStalledSpinLock == 0)) {
 331           warning("JNIHistogram_lock seems to be stalled");
 332         }
 333       }
 334      }
 335 
 336 
 337     if(JNIHistogram == NULL)
 338       JNIHistogram = new Histogram("JNI Call Counts",100);
 339 
 340     JNIHistogram->add_element(this);
 341     Atomic::dec(&JNIHistogram_lock);
 342   }
 343 
 344   #define JNICountWrapper(arg)                                     \
 345      static JNIHistogramElement* e = new JNIHistogramElement(arg); \
 346       /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \
 347      if (e != NULL) e->increment_count()
 348   #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg)
 349 #else
 350   #define JNIWrapper(arg)
 351 #endif
 352 
 353 
 354 // Implementation of JNI entries
 355 
 356 #ifndef USDT2
 357 DT_RETURN_MARK_DECL(DefineClass, jclass);
 358 #else /* USDT2 */
 359 DT_RETURN_MARK_DECL(DefineClass, jclass
 360                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));
 361 #endif /* USDT2 */
 362 
 363 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef,
 364                                   const jbyte *buf, jsize bufLen))
 365   JNIWrapper("DefineClass");
 366 
 367 #ifndef USDT2
 368   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,
 369     env, name, loaderRef, buf, bufLen);
 370 #else /* USDT2 */
 371   HOTSPOT_JNI_DEFINECLASS_ENTRY(
 372     env, (char*) name, loaderRef, (char*) buf, bufLen);
 373 #endif /* USDT2 */
 374   jclass cls = NULL;
 375   DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls);
 376 
 377   TempNewSymbol class_name = NULL;
 378   // Since exceptions can be thrown, class initialization can take place
 379   // if name is NULL no check for class name in .class stream has to be made.
 380   if (name != NULL) {
 381     const int str_len = (int)strlen(name);
 382     if (str_len > Symbol::max_length()) {
 383       // It's impossible to create this class;  the name cannot fit
 384       // into the constant pool.
 385       THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
 386     }
 387     class_name = SymbolTable::new_symbol(name, CHECK_NULL);
 388   }
 389   ResourceMark rm(THREAD);
 390   ClassFileStream st((u1*) buf, bufLen, NULL);
 391   Handle class_loader (THREAD, JNIHandles::resolve(loaderRef));
 392 
 393   if (UsePerfData && !class_loader.is_null()) {
 394     // check whether the current caller thread holds the lock or not.
 395     // If not, increment the corresponding counter
 396     if (ObjectSynchronizer::
 397         query_lock_ownership((JavaThread*)THREAD, class_loader) !=
 398         ObjectSynchronizer::owner_self) {
 399       ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc();
 400     }
 401   }
 402   Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader,
 403                                                      Handle(), &st, true,
 404                                                      CHECK_NULL);
 405 
 406   if (TraceClassResolution && k != NULL) {
 407     trace_class_resolution(k);
 408   }
 409 
 410   cls = (jclass)JNIHandles::make_local(
 411     env, k->java_mirror());
 412   return cls;
 413 JNI_END
 414 
 415 
 416 
 417 static bool first_time_FindClass = true;
 418 
 419 #ifndef USDT2
 420 DT_RETURN_MARK_DECL(FindClass, jclass);
 421 #else /* USDT2 */
 422 DT_RETURN_MARK_DECL(FindClass, jclass
 423                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));
 424 #endif /* USDT2 */
 425 
 426 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name))
 427   JNIWrapper("FindClass");
 428 #ifndef USDT2
 429   DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name);
 430 #else /* USDT2 */
 431   HOTSPOT_JNI_FINDCLASS_ENTRY(
 432                               env, (char *)name);
 433 #endif /* USDT2 */
 434 
 435   jclass result = NULL;
 436   DT_RETURN_MARK(FindClass, jclass, (const jclass&)result);
 437 
 438   // Remember if we are the first invocation of jni_FindClass
 439   bool first_time = first_time_FindClass;
 440   first_time_FindClass = false;
 441 
 442   // Sanity check the name:  it cannot be null or larger than the maximum size
 443   // name we can fit in the constant pool.
 444   if (name == NULL || (int)strlen(name) > Symbol::max_length()) {
 445     THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);
 446   }
 447 
 448   //%note jni_3
 449   Handle loader;
 450   Handle protection_domain;
 451   // Find calling class
 452   instanceKlassHandle k (THREAD, thread->security_get_caller_class(0));
 453   if (k.not_null()) {
 454     loader = Handle(THREAD, k->class_loader());
 455     // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed
 456     // in the correct class context.
 457     if (loader.is_null() &&
 458         k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) {
 459       JavaValue result(T_OBJECT);
 460       JavaCalls::call_static(&result, k,
 461                                       vmSymbols::getFromClass_name(),
 462                                       vmSymbols::void_class_signature(),
 463                                       thread);
 464       if (HAS_PENDING_EXCEPTION) {
 465         Handle ex(thread, thread->pending_exception());
 466         CLEAR_PENDING_EXCEPTION;
 467         THROW_HANDLE_0(ex);
 468       }
 469       oop mirror = (oop) result.get_jobject();
 470       loader = Handle(THREAD,
 471         InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader());
 472       protection_domain = Handle(THREAD,
 473         InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain());
 474     }
 475   } else {
 476     // We call ClassLoader.getSystemClassLoader to obtain the system class loader.
 477     loader = Handle(THREAD, SystemDictionary::java_system_loader());
 478   }
 479 
 480   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
 481   result = find_class_from_class_loader(env, sym, true, loader,
 482                                         protection_domain, true, thread);
 483 
 484   if (TraceClassResolution && result != NULL) {
 485     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
 486   }
 487 
 488   // If we were the first invocation of jni_FindClass, we enable compilation again
 489   // rather than just allowing invocation counter to overflow and decay.
 490   // Controlled by flag DelayCompilationDuringStartup.
 491   if (first_time && !CompileTheWorld)
 492     CompilationPolicy::completed_vm_startup();
 493 
 494   return result;
 495 JNI_END
 496 
 497 #ifndef USDT2
 498 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);
 499 #else /* USDT2 */
 500 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID
 501                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));
 502 #endif /* USDT2 */
 503 
 504 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method))
 505   JNIWrapper("FromReflectedMethod");
 506 #ifndef USDT2
 507   DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method);
 508 #else /* USDT2 */
 509   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(
 510                                         env, method);
 511 #endif /* USDT2 */
 512   jmethodID ret = NULL;
 513   DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret);
 514 
 515   // method is a handle to a java.lang.reflect.Method object
 516   oop reflected  = JNIHandles::resolve_non_null(method);
 517   oop mirror     = NULL;
 518   int slot       = 0;
 519 
 520   if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) {
 521     mirror = java_lang_reflect_Constructor::clazz(reflected);
 522     slot   = java_lang_reflect_Constructor::slot(reflected);
 523   } else {
 524     assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
 525     mirror = java_lang_reflect_Method::clazz(reflected);
 526     slot   = java_lang_reflect_Method::slot(reflected);
 527   }
 528   Klass* k     = java_lang_Class::as_Klass(mirror);
 529 
 530   KlassHandle k1(THREAD, k);
 531   // Make sure class is initialized before handing id's out to methods
 532   k1()->initialize(CHECK_NULL);
 533   Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot);
 534   ret = m==NULL? NULL : m->jmethod_id();  // return NULL if reflected method deleted
 535   return ret;
 536 JNI_END
 537 
 538 #ifndef USDT2
 539 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);
 540 #else /* USDT2 */
 541 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID
 542                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));
 543 #endif /* USDT2 */
 544 
 545 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field))
 546   JNIWrapper("FromReflectedField");
 547 #ifndef USDT2
 548   DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field);
 549 #else /* USDT2 */
 550   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(
 551                                        env, field);
 552 #endif /* USDT2 */
 553   jfieldID ret = NULL;
 554   DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret);
 555 
 556   // field is a handle to a java.lang.reflect.Field object
 557   oop reflected   = JNIHandles::resolve_non_null(field);
 558   oop mirror      = java_lang_reflect_Field::clazz(reflected);
 559   Klass* k      = java_lang_Class::as_Klass(mirror);
 560   int slot        = java_lang_reflect_Field::slot(reflected);
 561   int modifiers   = java_lang_reflect_Field::modifiers(reflected);
 562 
 563   KlassHandle k1(THREAD, k);
 564   // Make sure class is initialized before handing id's out to fields
 565   k1()->initialize(CHECK_NULL);
 566 
 567   // First check if this is a static field
 568   if (modifiers & JVM_ACC_STATIC) {
 569     intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
 570     JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset);
 571     assert(id != NULL, "corrupt Field object");
 572     debug_only(id->set_is_static_field_id();)
 573     // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
 574     ret = jfieldIDWorkaround::to_static_jfieldID(id);
 575     return ret;
 576   }
 577 
 578   // The slot is the index of the field description in the field-array
 579   // The jfieldID is the offset of the field within the object
 580   // It may also have hash bits for k, if VerifyJNIFields is turned on.
 581   intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );
 582   assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");
 583   ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset);
 584   return ret;
 585 JNI_END
 586 
 587 #ifndef USDT2
 588 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);
 589 #else /* USDT2 */
 590 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject
 591                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));
 592 #endif /* USDT2 */
 593 
 594 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic))
 595   JNIWrapper("ToReflectedMethod");
 596 #ifndef USDT2
 597   DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic);
 598 #else /* USDT2 */
 599   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(
 600                                       env, cls, (uintptr_t) method_id, isStatic);
 601 #endif /* USDT2 */
 602   jobject ret = NULL;
 603   DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret);
 604 
 605   methodHandle m (THREAD, Method::resolve_jmethod_id(method_id));
 606   assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match");
 607   oop reflection_method;
 608   if (m->is_initializer()) {
 609     reflection_method = Reflection::new_constructor(m, CHECK_NULL);
 610   } else {
 611     reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL);
 612   }
 613   ret = JNIHandles::make_local(env, reflection_method);
 614   return ret;
 615 JNI_END
 616 
 617 #ifndef USDT2
 618 DT_RETURN_MARK_DECL(GetSuperclass, jclass);
 619 #else /* USDT2 */
 620 DT_RETURN_MARK_DECL(GetSuperclass, jclass
 621                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));
 622 #endif /* USDT2 */
 623 
 624 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub))
 625   JNIWrapper("GetSuperclass");
 626 #ifndef USDT2
 627   DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub);
 628 #else /* USDT2 */
 629   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(
 630                                   env, sub);
 631 #endif /* USDT2 */
 632   jclass obj = NULL;
 633   DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj);
 634 
 635   oop mirror = JNIHandles::resolve_non_null(sub);
 636   // primitive classes return NULL
 637   if (java_lang_Class::is_primitive(mirror)) return NULL;
 638 
 639   // Rules of Class.getSuperClass as implemented by KLass::java_super:
 640   // arrays return Object
 641   // interfaces return NULL
 642   // proper classes return Klass::super()
 643   Klass* k = java_lang_Class::as_Klass(mirror);
 644   if (k->is_interface()) return NULL;
 645 
 646   // return mirror for superclass
 647   Klass* super = k->java_super();
 648   // super2 is the value computed by the compiler's getSuperClass intrinsic:
 649   debug_only(Klass* super2 = ( k->oop_is_array()
 650                                  ? SystemDictionary::Object_klass()
 651                                  : k->super() ) );
 652   assert(super == super2,
 653          "java_super computation depends on interface, array, other super");
 654   obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror());
 655   return obj;
 656 JNI_END
 657 
 658 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super))
 659   JNIWrapper("IsSubclassOf");
 660 #ifndef USDT2
 661   DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super);
 662 #else /* USDT2 */
 663   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(
 664                                      env, sub, super);
 665 #endif /* USDT2 */
 666   oop sub_mirror   = JNIHandles::resolve_non_null(sub);
 667   oop super_mirror = JNIHandles::resolve_non_null(super);
 668   if (java_lang_Class::is_primitive(sub_mirror) ||
 669       java_lang_Class::is_primitive(super_mirror)) {
 670     jboolean ret = (sub_mirror == super_mirror);
 671 #ifndef USDT2
 672     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
 673 #else /* USDT2 */
 674     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
 675                                         ret);
 676 #endif /* USDT2 */
 677     return ret;
 678   }
 679   Klass* sub_klass   = java_lang_Class::as_Klass(sub_mirror);
 680   Klass* super_klass = java_lang_Class::as_Klass(super_mirror);
 681   assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom");
 682   jboolean ret = sub_klass->is_subtype_of(super_klass) ?
 683                    JNI_TRUE : JNI_FALSE;
 684 #ifndef USDT2
 685   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);
 686 #else /* USDT2 */
 687   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(
 688                                       ret);
 689 #endif /* USDT2 */
 690   return ret;
 691 JNI_END
 692 
 693 #ifndef USDT2
 694 DT_RETURN_MARK_DECL(Throw, jint);
 695 #else /* USDT2 */
 696 DT_RETURN_MARK_DECL(Throw, jint
 697                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));
 698 #endif /* USDT2 */
 699 
 700 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj))
 701   JNIWrapper("Throw");
 702 #ifndef USDT2
 703   DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj);
 704 #else /* USDT2 */
 705   HOTSPOT_JNI_THROW_ENTRY(
 706  env, obj);
 707 #endif /* USDT2 */
 708   jint ret = JNI_OK;
 709   DT_RETURN_MARK(Throw, jint, (const jint&)ret);
 710 
 711   THROW_OOP_(JNIHandles::resolve(obj), JNI_OK);
 712   ShouldNotReachHere();
 713   return 0; // Mute compiler.
 714 JNI_END
 715 
 716 #ifndef USDT2
 717 DT_RETURN_MARK_DECL(ThrowNew, jint);
 718 #else /* USDT2 */
 719 DT_RETURN_MARK_DECL(ThrowNew, jint
 720                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));
 721 #endif /* USDT2 */
 722 
 723 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message))
 724   JNIWrapper("ThrowNew");
 725 #ifndef USDT2
 726   DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message);
 727 #else /* USDT2 */
 728   HOTSPOT_JNI_THROWNEW_ENTRY(
 729                              env, clazz, (char *) message);
 730 #endif /* USDT2 */
 731   jint ret = JNI_OK;
 732   DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret);
 733 
 734   InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
 735   Symbol*  name = k->name();
 736   Handle class_loader (THREAD,  k->class_loader());
 737   Handle protection_domain (THREAD, k->protection_domain());
 738   THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);
 739   ShouldNotReachHere();
 740   return 0; // Mute compiler.
 741 JNI_END
 742 
 743 
 744 // JNI functions only transform a pending async exception to a synchronous
 745 // exception in ExceptionOccurred and ExceptionCheck calls, since
 746 // delivering an async exception in other places won't change the native
 747 // code's control flow and would be harmful when native code further calls
 748 // JNI functions with a pending exception. Async exception is also checked
 749 // during the call, so ExceptionOccurred/ExceptionCheck won't return
 750 // false but deliver the async exception at the very end during
 751 // state transition.
 752 
 753 static void jni_check_async_exceptions(JavaThread *thread) {
 754   assert(thread == Thread::current(), "must be itself");
 755   thread->check_and_handle_async_exceptions();
 756 }
 757 
 758 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env))
 759   JNIWrapper("ExceptionOccurred");
 760 #ifndef USDT2
 761   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);
 762 #else /* USDT2 */
 763   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(
 764                                       env);
 765 #endif /* USDT2 */
 766   jni_check_async_exceptions(thread);
 767   oop exception = thread->pending_exception();
 768   jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception);
 769 #ifndef USDT2
 770   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);
 771 #else /* USDT2 */
 772   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(
 773                                        ret);
 774 #endif /* USDT2 */
 775   return ret;
 776 JNI_END
 777 
 778 
 779 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env))
 780   JNIWrapper("ExceptionDescribe");
 781 #ifndef USDT2
 782   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);
 783 #else /* USDT2 */
 784   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(
 785                                       env);
 786 #endif /* USDT2 */
 787   if (thread->has_pending_exception()) {
 788     Handle ex(thread, thread->pending_exception());
 789     thread->clear_pending_exception();
 790     if (ex->is_a(SystemDictionary::ThreadDeath_klass())) {
 791       // Don't print anything if we are being killed.
 792     } else {
 793       jio_fprintf(defaultStream::error_stream(), "Exception ");
 794       if (thread != NULL && thread->threadObj() != NULL) {
 795         ResourceMark rm(THREAD);
 796         jio_fprintf(defaultStream::error_stream(),
 797         "in thread \"%s\" ", thread->get_thread_name());
 798       }
 799       if (ex->is_a(SystemDictionary::Throwable_klass())) {
 800         JavaValue result(T_VOID);
 801         JavaCalls::call_virtual(&result,
 802                                 ex,
 803                                 KlassHandle(THREAD,
 804                                   SystemDictionary::Throwable_klass()),
 805                                 vmSymbols::printStackTrace_name(),
 806                                 vmSymbols::void_method_signature(),
 807                                 THREAD);
 808         // If an exception is thrown in the call it gets thrown away. Not much
 809         // we can do with it. The native code that calls this, does not check
 810         // for the exception - hence, it might still be in the thread when DestroyVM gets
 811         // called, potentially causing a few asserts to trigger - since no pending exception
 812         // is expected.
 813         CLEAR_PENDING_EXCEPTION;
 814       } else {
 815         ResourceMark rm(THREAD);
 816         jio_fprintf(defaultStream::error_stream(),
 817         ". Uncaught exception of type %s.",
 818         ex->klass()->external_name());
 819       }
 820     }
 821   }
 822 #ifndef USDT2
 823   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);
 824 #else /* USDT2 */
 825   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(
 826                                        );
 827 #endif /* USDT2 */
 828 JNI_END
 829 
 830 
 831 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env))
 832   JNIWrapper("ExceptionClear");
 833 #ifndef USDT2
 834   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);
 835 #else /* USDT2 */
 836   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(
 837                                    env);
 838 #endif /* USDT2 */
 839 
 840   // The jni code might be using this API to clear java thrown exception.
 841   // So just mark jvmti thread exception state as exception caught.
 842   JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state();
 843   if (state != NULL && state->is_exception_detected()) {
 844     state->set_exception_caught();
 845   }
 846   thread->clear_pending_exception();
 847 #ifndef USDT2
 848   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);
 849 #else /* USDT2 */
 850   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(
 851                                     );
 852 #endif /* USDT2 */
 853 JNI_END
 854 
 855 
 856 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg))
 857   JNIWrapper("FatalError");
 858 #ifndef USDT2
 859   DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg);
 860 #else /* USDT2 */
 861   HOTSPOT_JNI_FATALERROR_ENTRY(
 862                                env, (char *) msg);
 863 #endif /* USDT2 */
 864   tty->print_cr("FATAL ERROR in native method: %s", msg);
 865   thread->print_stack();
 866   os::abort(); // Dump core and abort
 867 JNI_END
 868 
 869 
 870 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity))
 871   JNIWrapper("PushLocalFrame");
 872 #ifndef USDT2
 873   DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity);
 874 #else /* USDT2 */
 875   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(
 876                                    env, capacity);
 877 #endif /* USDT2 */
 878   //%note jni_11
 879   if (capacity < 0 ||
 880       ((MaxJNILocalCapacity > 0) && (capacity > MaxJNILocalCapacity))) {
 881 #ifndef USDT2
 882     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);
 883 #else /* USDT2 */
 884     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
 885                                       (uint32_t)JNI_ERR);
 886 #endif /* USDT2 */
 887     return JNI_ERR;
 888   }
 889   JNIHandleBlock* old_handles = thread->active_handles();
 890   JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);
 891   assert(new_handles != NULL, "should not be NULL");
 892   new_handles->set_pop_frame_link(old_handles);
 893   thread->set_active_handles(new_handles);
 894   jint ret = JNI_OK;
 895 #ifndef USDT2
 896   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);
 897 #else /* USDT2 */
 898   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(
 899                                     ret);
 900 #endif /* USDT2 */
 901   return ret;
 902 JNI_END
 903 
 904 
 905 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result))
 906   JNIWrapper("PopLocalFrame");
 907 #ifndef USDT2
 908   DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result);
 909 #else /* USDT2 */
 910   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(
 911                                   env, result);
 912 #endif /* USDT2 */
 913   //%note jni_11
 914   Handle result_handle(thread, JNIHandles::resolve(result));
 915   JNIHandleBlock* old_handles = thread->active_handles();
 916   JNIHandleBlock* new_handles = old_handles->pop_frame_link();
 917   if (new_handles != NULL) {
 918     // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL.
 919     // This way code will still work if PopLocalFrame is called without a corresponding
 920     // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise
 921     // the release_block call will release the blocks.
 922     thread->set_active_handles(new_handles);
 923     old_handles->set_pop_frame_link(NULL);              // clear link we won't release new_handles below
 924     JNIHandleBlock::release_block(old_handles, thread); // may block
 925     result = JNIHandles::make_local(thread, result_handle());
 926   }
 927 #ifndef USDT2
 928   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);
 929 #else /* USDT2 */
 930   HOTSPOT_JNI_POPLOCALFRAME_RETURN(
 931                                    result);
 932 #endif /* USDT2 */
 933   return result;
 934 JNI_END
 935 
 936 
 937 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref))
 938   JNIWrapper("NewGlobalRef");
 939 #ifndef USDT2
 940   DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref);
 941 #else /* USDT2 */
 942   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(
 943                                  env, ref);
 944 #endif /* USDT2 */
 945   Handle ref_handle(thread, JNIHandles::resolve(ref));
 946   jobject ret = JNIHandles::make_global(ref_handle);
 947 #ifndef USDT2
 948   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);
 949 #else /* USDT2 */
 950   HOTSPOT_JNI_NEWGLOBALREF_RETURN(
 951                                   ret);
 952 #endif /* USDT2 */
 953   return ret;
 954 JNI_END
 955 
 956 // Must be JNI_ENTRY (with HandleMark)
 957 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref))
 958   JNIWrapper("DeleteGlobalRef");
 959 #ifndef USDT2
 960   DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref);
 961 #else /* USDT2 */
 962   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(
 963                                     env, ref);
 964 #endif /* USDT2 */
 965   JNIHandles::destroy_global(ref);
 966 #ifndef USDT2
 967   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);
 968 #else /* USDT2 */
 969   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(
 970                                      );
 971 #endif /* USDT2 */
 972 JNI_END
 973 
 974 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj))
 975   JNIWrapper("DeleteLocalRef");
 976 #ifndef USDT2
 977   DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj);
 978 #else /* USDT2 */
 979   HOTSPOT_JNI_DELETELOCALREF_ENTRY(
 980                                    env, obj);
 981 #endif /* USDT2 */
 982   JNIHandles::destroy_local(obj);
 983 #ifndef USDT2
 984   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);
 985 #else /* USDT2 */
 986   HOTSPOT_JNI_DELETELOCALREF_RETURN(
 987                                     );
 988 #endif /* USDT2 */
 989 JNI_END
 990 
 991 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2))
 992   JNIWrapper("IsSameObject");
 993 #ifndef USDT2
 994   DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2);
 995 #else /* USDT2 */
 996   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(
 997                                  env, r1, r2);
 998 #endif /* USDT2 */
 999   oop a = JNIHandles::resolve(r1);
1000   oop b = JNIHandles::resolve(r2);
1001   jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;
1002 #ifndef USDT2
1003   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);
1004 #else /* USDT2 */
1005   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(
1006                                   ret);
1007 #endif /* USDT2 */
1008   return ret;
1009 JNI_END
1010 
1011 
1012 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))
1013   JNIWrapper("NewLocalRef");
1014 #ifndef USDT2
1015   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);
1016 #else /* USDT2 */
1017   HOTSPOT_JNI_NEWLOCALREF_ENTRY(
1018                                 env, ref);
1019 #endif /* USDT2 */
1020   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));
1021 #ifndef USDT2
1022   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);
1023 #else /* USDT2 */
1024   HOTSPOT_JNI_NEWLOCALREF_RETURN(
1025                                  ret);
1026 #endif /* USDT2 */
1027   return ret;
1028 JNI_END
1029 
1030 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))
1031   JNIWrapper("EnsureLocalCapacity");
1032 #ifndef USDT2
1033   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);
1034 #else /* USDT2 */
1035   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(
1036                                         env, capacity);
1037 #endif /* USDT2 */
1038   jint ret;
1039   if (capacity >= 0 &&
1040       ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) {
1041     ret = JNI_OK;
1042   } else {
1043     ret = JNI_ERR;
1044   }
1045 #ifndef USDT2
1046   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);
1047 #else /* USDT2 */
1048   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(
1049                                          ret);
1050 #endif /* USDT2 */
1051   return ret;
1052 JNI_END
1053 
1054 // Return the Handle Type
1055 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))
1056   JNIWrapper("GetObjectRefType");
1057 #ifndef USDT2
1058   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);
1059 #else /* USDT2 */
1060   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(
1061                                      env, obj);
1062 #endif /* USDT2 */
1063   jobjectRefType ret;
1064   if (JNIHandles::is_local_handle(thread, obj) ||
1065       JNIHandles::is_frame_handle(thread, obj))
1066     ret = JNILocalRefType;
1067   else if (JNIHandles::is_global_handle(obj))
1068     ret = JNIGlobalRefType;
1069   else if (JNIHandles::is_weak_global_handle(obj))
1070     ret = JNIWeakGlobalRefType;
1071   else
1072     ret = JNIInvalidRefType;
1073 #ifndef USDT2
1074   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);
1075 #else /* USDT2 */
1076   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(
1077                                       (void *) ret);
1078 #endif /* USDT2 */
1079   return ret;
1080 JNI_END
1081 
1082 
1083 class JNI_ArgumentPusher : public SignatureIterator {
1084  protected:
1085   JavaCallArguments*  _arguments;
1086 
1087   virtual void get_bool   () = 0;
1088   virtual void get_char   () = 0;
1089   virtual void get_short  () = 0;
1090   virtual void get_byte   () = 0;
1091   virtual void get_int    () = 0;
1092   virtual void get_long   () = 0;
1093   virtual void get_float  () = 0;
1094   virtual void get_double () = 0;
1095   virtual void get_object () = 0;
1096 
1097   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {
1098     this->_return_type = T_ILLEGAL;
1099     _arguments = NULL;
1100   }
1101 
1102  public:
1103   virtual void iterate( uint64_t fingerprint ) = 0;
1104 
1105   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }
1106 
1107   inline void do_bool()                     { if (!is_return_type()) get_bool();   }
1108   inline void do_char()                     { if (!is_return_type()) get_char();   }
1109   inline void do_short()                    { if (!is_return_type()) get_short();  }
1110   inline void do_byte()                     { if (!is_return_type()) get_byte();   }
1111   inline void do_int()                      { if (!is_return_type()) get_int();    }
1112   inline void do_long()                     { if (!is_return_type()) get_long();   }
1113   inline void do_float()                    { if (!is_return_type()) get_float();  }
1114   inline void do_double()                   { if (!is_return_type()) get_double(); }
1115   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }
1116   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array
1117   inline void do_void()                     { }
1118 
1119   JavaCallArguments* arguments()     { return _arguments; }
1120   void push_receiver(Handle h)       { _arguments->push_oop(h); }
1121 };
1122 
1123 
1124 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {
1125  protected:
1126   va_list _ap;
1127 
1128   inline void get_bool()   {
1129     // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1130     // 0 to JNI_FALSE.  Boolean return values from native are normalized the same in
1131     // TemplateInterpreterGenerator::generate_result_handler_for and
1132     // SharedRuntime::generate_native_wrapper.
1133     jboolean b = va_arg(_ap, jint);
1134     _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1135   }
1136   inline void get_char()   { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg
1137   inline void get_short()  { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg
1138   inline void get_byte()   { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg
1139   inline void get_int()    { _arguments->push_int(va_arg(_ap, jint)); }
1140 
1141   // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests
1142 
1143   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }
1144   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg
1145   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }
1146   inline void get_object() { _arguments->push_jobject(va_arg(_ap, jobject)); }
1147 
1148   inline void set_ap(va_list rap) {
1149 #ifdef va_copy
1150     va_copy(_ap, rap);
1151 #elif defined (__va_copy)
1152     __va_copy(_ap, rap);
1153 #else
1154     _ap = rap;
1155 #endif
1156   }
1157 
1158  public:
1159   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)
1160        : JNI_ArgumentPusher(signature) {
1161     set_ap(rap);
1162   }
1163   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)
1164       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1165     set_ap(rap);
1166   }
1167 
1168   // Optimized path if we have the bitvector form of signature
1169   void iterate( uint64_t fingerprint ) {
1170     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments
1171     else {
1172       _return_type = (BasicType)((fingerprint >> static_feature_size) &
1173                                   result_feature_mask);
1174 
1175       assert(fingerprint, "Fingerprint should not be 0");
1176       fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1177       while ( 1 ) {
1178         switch ( fingerprint & parameter_feature_mask ) {
1179           case bool_parm:
1180             get_bool();
1181             break;
1182           case char_parm:
1183             get_char();
1184             break;
1185           case short_parm:
1186             get_short();
1187             break;
1188           case byte_parm:
1189             get_byte();
1190             break;
1191           case int_parm:
1192             get_int();
1193             break;
1194           case obj_parm:
1195             get_object();
1196             break;
1197           case long_parm:
1198             get_long();
1199             break;
1200           case float_parm:
1201             get_float();
1202             break;
1203           case double_parm:
1204             get_double();
1205             break;
1206           case done_parm:
1207             return;
1208             break;
1209           default:
1210             ShouldNotReachHere();
1211             break;
1212         }
1213         fingerprint >>= parameter_feature_size;
1214       }
1215     }
1216   }
1217 };
1218 
1219 
1220 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {
1221  protected:
1222   const jvalue *_ap;
1223 
1224   inline void get_bool()   {
1225     // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and
1226     // 0 to JNI_FALSE.  Boolean return values from native are normalized the same in
1227     // TemplateInterpreterGenerator::generate_result_handler_for and
1228     // SharedRuntime::generate_native_wrapper.
1229     jboolean b = (_ap++)->z;
1230     _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));
1231   }
1232   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }
1233   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }
1234   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }
1235   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }
1236 
1237   inline void get_long()   { _arguments->push_long((_ap++)->j);  }
1238   inline void get_float()  { _arguments->push_float((_ap++)->f); }
1239   inline void get_double() { _arguments->push_double((_ap++)->d);}
1240   inline void get_object() { _arguments->push_jobject((_ap++)->l); }
1241 
1242   inline void set_ap(const jvalue *rap) { _ap = rap; }
1243 
1244  public:
1245   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)
1246        : JNI_ArgumentPusher(signature) {
1247     set_ap(rap);
1248   }
1249   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)
1250       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {
1251     set_ap(rap);
1252   }
1253 
1254   // Optimized path if we have the bitvector form of signature
1255   void iterate( uint64_t fingerprint ) {
1256     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments
1257     else {
1258       _return_type = (BasicType)((fingerprint >> static_feature_size) &
1259                                   result_feature_mask);
1260       assert(fingerprint, "Fingerprint should not be 0");
1261       fingerprint = fingerprint >> (static_feature_size + result_feature_size);
1262       while ( 1 ) {
1263         switch ( fingerprint & parameter_feature_mask ) {
1264           case bool_parm:
1265             get_bool();
1266             break;
1267           case char_parm:
1268             get_char();
1269             break;
1270           case short_parm:
1271             get_short();
1272             break;
1273           case byte_parm:
1274             get_byte();
1275             break;
1276           case int_parm:
1277             get_int();
1278             break;
1279           case obj_parm:
1280             get_object();
1281             break;
1282           case long_parm:
1283             get_long();
1284             break;
1285           case float_parm:
1286             get_float();
1287             break;
1288           case double_parm:
1289             get_double();
1290             break;
1291           case done_parm:
1292             return;
1293             break;
1294           default:
1295             ShouldNotReachHere();
1296             break;
1297         }
1298         fingerprint >>= parameter_feature_size;
1299       }
1300     }
1301   }
1302 };
1303 
1304 
1305 enum JNICallType {
1306   JNI_STATIC,
1307   JNI_VIRTUAL,
1308   JNI_NONVIRTUAL
1309 };
1310 
1311 
1312 
1313 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1314   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));
1315 
1316   // Create object to hold arguments for the JavaCall, and associate it with
1317   // the jni parser
1318   ResourceMark rm(THREAD);
1319   int number_of_parameters = method->size_of_parameters();
1320   JavaCallArguments java_args(number_of_parameters);
1321   args->set_java_argument_object(&java_args);
1322 
1323   assert(method->is_static(), "method should be static");
1324 
1325   // Fill out JavaCallArguments object
1326   args->iterate( Fingerprinter(method).fingerprint() );
1327   // Initialize result type
1328   result->set_type(args->get_ret_type());
1329 
1330   // Invoke the method. Result is returned as oop.
1331   JavaCalls::call(result, method, &java_args, CHECK);
1332 
1333   // Convert result
1334   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1335     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1336   }
1337 }
1338 
1339 
1340 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {
1341   oop recv = JNIHandles::resolve(receiver);
1342   if (recv == NULL) {
1343     THROW(vmSymbols::java_lang_NullPointerException());
1344   }
1345   Handle h_recv(THREAD, recv);
1346 
1347   int number_of_parameters;
1348   Method* selected_method;
1349   {
1350     Method* m = Method::resolve_jmethod_id(method_id);
1351     number_of_parameters = m->size_of_parameters();
1352     Klass* holder = m->method_holder();
1353     if (call_type != JNI_VIRTUAL) {
1354         selected_method = m;
1355     } else if (!m->has_itable_index()) {
1356       // non-interface call -- for that little speed boost, don't handlize
1357       debug_only(No_Safepoint_Verifier nosafepoint;)
1358       // jni_GetMethodID makes sure class is linked and initialized
1359       // so m should have a valid vtable index.
1360       assert(m->valid_vtable_index(), "no valid vtable index");
1361       int vtbl_index = m->vtable_index();
1362       if (vtbl_index != Method::nonvirtual_vtable_index) {
1363         Klass* k = h_recv->klass();
1364         // k might be an arrayKlassOop but all vtables start at
1365         // the same place. The cast is to avoid virtual call and assertion.
1366         InstanceKlass *ik = (InstanceKlass*)k;
1367         selected_method = ik->method_at_vtable(vtbl_index);
1368       } else {
1369         // final method
1370         selected_method = m;
1371       }
1372     } else {
1373       // interface call
1374       KlassHandle h_holder(THREAD, holder);
1375 
1376       int itbl_index = m->itable_index();
1377       Klass* k = h_recv->klass();
1378       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);
1379     }
1380   }
1381 
1382   methodHandle method(THREAD, selected_method);
1383 
1384   // Create object to hold arguments for the JavaCall, and associate it with
1385   // the jni parser
1386   ResourceMark rm(THREAD);
1387   JavaCallArguments java_args(number_of_parameters);
1388   args->set_java_argument_object(&java_args);
1389 
1390   // handle arguments
1391   assert(!method->is_static(), "method should not be static");
1392   args->push_receiver(h_recv); // Push jobject handle
1393 
1394   // Fill out JavaCallArguments object
1395   args->iterate( Fingerprinter(method).fingerprint() );
1396   // Initialize result type
1397   result->set_type(args->get_ret_type());
1398 
1399   // Invoke the method. Result is returned as oop.
1400   JavaCalls::call(result, method, &java_args, CHECK);
1401 
1402   // Convert result
1403   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {
1404     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));
1405   }
1406 }
1407 
1408 
1409 static instanceOop alloc_object(jclass clazz, TRAPS) {
1410   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1411   k()->check_valid_for_instantiation(false, CHECK_NULL);
1412   InstanceKlass::cast(k())->initialize(CHECK_NULL);
1413   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);
1414   return ih;
1415 }
1416 
1417 #ifndef USDT2
1418 DT_RETURN_MARK_DECL(AllocObject, jobject);
1419 #else /* USDT2 */
1420 DT_RETURN_MARK_DECL(AllocObject, jobject
1421                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));
1422 #endif /* USDT2 */
1423 
1424 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))
1425   JNIWrapper("AllocObject");
1426 
1427 #ifndef USDT2
1428   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);
1429 #else /* USDT2 */
1430   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(
1431                                 env, clazz);
1432 #endif /* USDT2 */
1433   jobject ret = NULL;
1434   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);
1435 
1436   instanceOop i = alloc_object(clazz, CHECK_NULL);
1437   ret = JNIHandles::make_local(env, i);
1438   return ret;
1439 JNI_END
1440 
1441 #ifndef USDT2
1442 DT_RETURN_MARK_DECL(NewObjectA, jobject);
1443 #else /* USDT2 */
1444 DT_RETURN_MARK_DECL(NewObjectA, jobject
1445                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));
1446 #endif /* USDT2 */
1447 
1448 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))
1449   JNIWrapper("NewObjectA");
1450 #ifndef USDT2
1451   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);
1452 #else /* USDT2 */
1453   HOTSPOT_JNI_NEWOBJECTA_ENTRY(
1454                                env, clazz, (uintptr_t) methodID);
1455 #endif /* USDT2 */
1456   jobject obj = NULL;
1457   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);
1458 
1459   instanceOop i = alloc_object(clazz, CHECK_NULL);
1460   obj = JNIHandles::make_local(env, i);
1461   JavaValue jvalue(T_VOID);
1462   JNI_ArgumentPusherArray ap(methodID, args);
1463   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1464   return obj;
1465 JNI_END
1466 
1467 #ifndef USDT2
1468 DT_RETURN_MARK_DECL(NewObjectV, jobject);
1469 #else /* USDT2 */
1470 DT_RETURN_MARK_DECL(NewObjectV, jobject
1471                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));
1472 #endif /* USDT2 */
1473 
1474 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))
1475   JNIWrapper("NewObjectV");
1476 #ifndef USDT2
1477   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);
1478 #else /* USDT2 */
1479   HOTSPOT_JNI_NEWOBJECTV_ENTRY(
1480                                env, clazz, (uintptr_t) methodID);
1481 #endif /* USDT2 */
1482   jobject obj = NULL;
1483   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);
1484 
1485   instanceOop i = alloc_object(clazz, CHECK_NULL);
1486   obj = JNIHandles::make_local(env, i);
1487   JavaValue jvalue(T_VOID);
1488   JNI_ArgumentPusherVaArg ap(methodID, args);
1489   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1490   return obj;
1491 JNI_END
1492 
1493 #ifndef USDT2
1494 DT_RETURN_MARK_DECL(NewObject, jobject);
1495 #else /* USDT2 */
1496 DT_RETURN_MARK_DECL(NewObject, jobject
1497                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));
1498 #endif /* USDT2 */
1499 
1500 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))
1501   JNIWrapper("NewObject");
1502 #ifndef USDT2
1503   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);
1504 #else /* USDT2 */
1505   HOTSPOT_JNI_NEWOBJECT_ENTRY(
1506                               env, clazz, (uintptr_t) methodID);
1507 #endif /* USDT2 */
1508   jobject obj = NULL;
1509   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);
1510 
1511   instanceOop i = alloc_object(clazz, CHECK_NULL);
1512   obj = JNIHandles::make_local(env, i);
1513   va_list args;
1514   va_start(args, methodID);
1515   JavaValue jvalue(T_VOID);
1516   JNI_ArgumentPusherVaArg ap(methodID, args);
1517   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);
1518   va_end(args);
1519   return obj;
1520 JNI_END
1521 
1522 
1523 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))
1524   JNIWrapper("GetObjectClass");
1525 #ifndef USDT2
1526   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);
1527 #else /* USDT2 */
1528   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(
1529                                    env, obj);
1530 #endif /* USDT2 */
1531   Klass* k = JNIHandles::resolve_non_null(obj)->klass();
1532   jclass ret =
1533     (jclass) JNIHandles::make_local(env, k->java_mirror());
1534 #ifndef USDT2
1535   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);
1536 #else /* USDT2 */
1537   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(
1538                                     ret);
1539 #endif /* USDT2 */
1540   return ret;
1541 JNI_END
1542 
1543 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))
1544   JNIWrapper("IsInstanceOf");
1545 #ifndef USDT2
1546   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);
1547 #else /* USDT2 */
1548   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(
1549                                  env, obj, clazz);
1550 #endif /* USDT2 */
1551   jboolean ret = JNI_TRUE;
1552   if (obj != NULL) {
1553     ret = JNI_FALSE;
1554     Klass* k = java_lang_Class::as_Klass(
1555       JNIHandles::resolve_non_null(clazz));
1556     if (k != NULL) {
1557       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;
1558     }
1559   }
1560 #ifndef USDT2
1561   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);
1562 #else /* USDT2 */
1563   HOTSPOT_JNI_ISINSTANCEOF_RETURN(
1564                                   ret);
1565 #endif /* USDT2 */
1566   return ret;
1567 JNI_END
1568 
1569 
1570 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,
1571                                const char *sig, bool is_static, TRAPS) {
1572   // %%%% This code should probably just call into a method in the LinkResolver
1573   //
1574   // The class should have been loaded (we have an instance of the class
1575   // passed in) so the method and signature should already be in the symbol
1576   // table.  If they're not there, the method doesn't exist.
1577   const char *name_to_probe = (name_str == NULL)
1578                         ? vmSymbols::object_initializer_name()->as_C_string()
1579                         : name_str;
1580   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));
1581   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));
1582 
1583   if (name == NULL || signature == NULL) {
1584     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1585   }
1586 
1587   // Throw a NoSuchMethodError exception if we have an instance of a
1588   // primitive java.lang.Class
1589   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {
1590     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1591   }
1592 
1593   KlassHandle klass(THREAD,
1594                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
1595 
1596   // Make sure class is linked and initialized before handing id's out to
1597   // Method*s.
1598   klass()->initialize(CHECK_NULL);
1599 
1600   Method* m;
1601   if (name == vmSymbols::object_initializer_name() ||
1602       name == vmSymbols::class_initializer_name()) {
1603     // Never search superclasses for constructors
1604     if (klass->oop_is_instance()) {
1605       m = InstanceKlass::cast(klass())->find_method(name, signature);
1606     } else {
1607       m = NULL;
1608     }
1609   } else {
1610     m = klass->lookup_method(name, signature);
1611     if (m == NULL &&  klass->oop_is_instance()) {
1612       m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);
1613     }
1614   }
1615   if (m == NULL || (m->is_static() != is_static)) {
1616     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);
1617   }
1618   return m->jmethod_id();
1619 }
1620 
1621 
1622 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,
1623           const char *name, const char *sig))
1624   JNIWrapper("GetMethodID");
1625 #ifndef USDT2
1626   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);
1627 #else /* USDT2 */
1628   HOTSPOT_JNI_GETMETHODID_ENTRY(
1629                                 env, clazz, (char *) name, (char *) sig);
1630 #endif /* USDT2 */
1631   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);
1632 #ifndef USDT2
1633   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);
1634 #else /* USDT2 */
1635   HOTSPOT_JNI_GETMETHODID_RETURN(
1636                                  (uintptr_t) ret);
1637 #endif /* USDT2 */
1638   return ret;
1639 JNI_END
1640 
1641 
1642 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,
1643           const char *name, const char *sig))
1644   JNIWrapper("GetStaticMethodID");
1645 #ifndef USDT2
1646   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);
1647 #else /* USDT2 */
1648   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(
1649                                       env, (char *) clazz, (char *) name, (char *)sig);
1650 #endif /* USDT2 */
1651   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);
1652 #ifndef USDT2
1653   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);
1654 #else /* USDT2 */
1655   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(
1656                                        (uintptr_t) ret);
1657 #endif /* USDT2 */
1658   return ret;
1659 JNI_END
1660 
1661 
1662 
1663 //
1664 // Calling Methods
1665 //
1666 
1667 #ifndef USDT2
1668 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \
1669 \
1670   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\
1671   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\
1672   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\
1673 \
1674 JNI_ENTRY(ResultType, \
1675           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1676   JNIWrapper("Call" XSTR(Result) "Method"); \
1677 \
1678   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \
1679   ResultType ret = 0;\
1680   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1681                      (const ResultType&)ret);\
1682 \
1683   va_list args; \
1684   va_start(args, methodID); \
1685   JavaValue jvalue(Tag); \
1686   JNI_ArgumentPusherVaArg ap(methodID, args); \
1687   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1688   va_end(args); \
1689   ret = jvalue.get_##ResultType(); \
1690   return ret;\
1691 JNI_END \
1692 \
1693 \
1694 JNI_ENTRY(ResultType, \
1695           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1696   JNIWrapper("Call" XSTR(Result) "MethodV"); \
1697 \
1698   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \
1699   ResultType ret = 0;\
1700   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1701                      (const ResultType&)ret);\
1702 \
1703   JavaValue jvalue(Tag); \
1704   JNI_ArgumentPusherVaArg ap(methodID, args); \
1705   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1706   ret = jvalue.get_##ResultType(); \
1707   return ret;\
1708 JNI_END \
1709 \
1710 \
1711 JNI_ENTRY(ResultType, \
1712           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1713   JNIWrapper("Call" XSTR(Result) "MethodA"); \
1714   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \
1715   ResultType ret = 0;\
1716   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1717                      (const ResultType&)ret);\
1718 \
1719   JavaValue jvalue(Tag); \
1720   JNI_ArgumentPusherArray ap(methodID, args); \
1721   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1722   ret = jvalue.get_##ResultType(); \
1723   return ret;\
1724 JNI_END
1725 
1726 // the runtime type of subword integral basic types is integer
1727 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)
1728 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)
1729 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)
1730 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)
1731 
1732 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)
1733 DEFINE_CALLMETHOD(jint,     Int,     T_INT)
1734 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)
1735 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)
1736 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)
1737 
1738 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);
1739 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);
1740 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);
1741 
1742 #else /* USDT2 */
1743 
1744 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \
1745                           , EntryProbe, ReturnProbe)    \
1746 \
1747   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \
1748                           , ReturnProbe);                          \
1749 \
1750 JNI_ENTRY(ResultType, \
1751           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \
1752   JNIWrapper("Call" XSTR(Result) "Method"); \
1753 \
1754   EntryProbe; \
1755   ResultType ret = 0;\
1756   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \
1757                      (const ResultType&)ret);\
1758 \
1759   va_list args; \
1760   va_start(args, methodID); \
1761   JavaValue jvalue(Tag); \
1762   JNI_ArgumentPusherVaArg ap(methodID, args); \
1763   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1764   va_end(args); \
1765   ret = jvalue.get_##ResultType(); \
1766   return ret;\
1767 JNI_END
1768 
1769 // the runtime type of subword integral basic types is integer
1770 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN
1771                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1772                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))
1773 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE
1774                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1775                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))
1776 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR
1777                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1778                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))
1779 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT
1780                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1781                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))
1782 
1783 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT
1784                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1785                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))
1786 DEFINE_CALLMETHOD(jint,     Int,     T_INT,
1787                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1788                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))
1789 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG
1790                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1791                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))
1792 // Float and double probes don't return value because dtrace doesn't currently support it
1793 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT
1794                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1795                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())
1796 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE
1797                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),
1798                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())
1799 
1800 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \
1801                           , EntryProbe, ReturnProbe)    \
1802 \
1803   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \
1804                           , ReturnProbe);                          \
1805 \
1806 JNI_ENTRY(ResultType, \
1807           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \
1808   JNIWrapper("Call" XSTR(Result) "MethodV"); \
1809 \
1810   EntryProbe;\
1811   ResultType ret = 0;\
1812   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \
1813                      (const ResultType&)ret);\
1814 \
1815   JavaValue jvalue(Tag); \
1816   JNI_ArgumentPusherVaArg ap(methodID, args); \
1817   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1818   ret = jvalue.get_##ResultType(); \
1819   return ret;\
1820 JNI_END
1821 
1822 // the runtime type of subword integral basic types is integer
1823 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN
1824                   , HOTSPOT_JNI_CALLBOOLEANMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1825                   HOTSPOT_JNI_CALLBOOLEANMETHODV_RETURN(_ret_ref))
1826 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE
1827                   , HOTSPOT_JNI_CALLBYTEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1828                   HOTSPOT_JNI_CALLBYTEMETHODV_RETURN(_ret_ref))
1829 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR
1830                   , HOTSPOT_JNI_CALLCHARMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1831                   HOTSPOT_JNI_CALLCHARMETHODV_RETURN(_ret_ref))
1832 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT
1833                   , HOTSPOT_JNI_CALLSHORTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1834                   HOTSPOT_JNI_CALLSHORTMETHODV_RETURN(_ret_ref))
1835 
1836 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT
1837                   , HOTSPOT_JNI_CALLOBJECTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1838                   HOTSPOT_JNI_CALLOBJECTMETHODV_RETURN(_ret_ref))
1839 DEFINE_CALLMETHODV(jint,     Int,     T_INT,
1840                   HOTSPOT_JNI_CALLINTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1841                   HOTSPOT_JNI_CALLINTMETHODV_RETURN(_ret_ref))
1842 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG
1843                   , HOTSPOT_JNI_CALLLONGMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1844                   HOTSPOT_JNI_CALLLONGMETHODV_RETURN(_ret_ref))
1845 // Float and double probes don't return value because dtrace doesn't currently support it
1846 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT
1847                   , HOTSPOT_JNI_CALLFLOATMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1848                   HOTSPOT_JNI_CALLFLOATMETHODV_RETURN())
1849 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE
1850                   , HOTSPOT_JNI_CALLDOUBLEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),
1851                   HOTSPOT_JNI_CALLDOUBLEMETHODV_RETURN())
1852 
1853 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \
1854                           , EntryProbe, ReturnProbe)    \
1855 \
1856   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \
1857                           , ReturnProbe);                          \
1858 \
1859 JNI_ENTRY(ResultType, \
1860           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \
1861   JNIWrapper("Call" XSTR(Result) "MethodA"); \
1862   EntryProbe; \
1863   ResultType ret = 0;\
1864   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \
1865                      (const ResultType&)ret);\
1866 \
1867   JavaValue jvalue(Tag); \
1868   JNI_ArgumentPusherArray ap(methodID, args); \
1869   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \
1870   ret = jvalue.get_##ResultType(); \
1871   return ret;\
1872 JNI_END
1873 
1874 // the runtime type of subword integral basic types is integer
1875 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN
1876                   , HOTSPOT_JNI_CALLBOOLEANMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1877                   HOTSPOT_JNI_CALLBOOLEANMETHODA_RETURN(_ret_ref))
1878 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE
1879                   , HOTSPOT_JNI_CALLBYTEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1880                   HOTSPOT_JNI_CALLBYTEMETHODA_RETURN(_ret_ref))
1881 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR
1882                   , HOTSPOT_JNI_CALLCHARMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1883                   HOTSPOT_JNI_CALLCHARMETHODA_RETURN(_ret_ref))
1884 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT
1885                   , HOTSPOT_JNI_CALLSHORTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1886                   HOTSPOT_JNI_CALLSHORTMETHODA_RETURN(_ret_ref))
1887 
1888 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT
1889                   , HOTSPOT_JNI_CALLOBJECTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1890                   HOTSPOT_JNI_CALLOBJECTMETHODA_RETURN(_ret_ref))
1891 DEFINE_CALLMETHODA(jint,     Int,     T_INT,
1892                   HOTSPOT_JNI_CALLINTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1893                   HOTSPOT_JNI_CALLINTMETHODA_RETURN(_ret_ref))
1894 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG
1895                   , HOTSPOT_JNI_CALLLONGMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1896                   HOTSPOT_JNI_CALLLONGMETHODA_RETURN(_ret_ref))
1897 // Float and double probes don't return value because dtrace doesn't currently support it
1898 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT
1899                   , HOTSPOT_JNI_CALLFLOATMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1900                   HOTSPOT_JNI_CALLFLOATMETHODA_RETURN())
1901 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE
1902                   , HOTSPOT_JNI_CALLDOUBLEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),
1903                   HOTSPOT_JNI_CALLDOUBLEMETHODA_RETURN())
1904 
1905 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());
1906 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());
1907 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());
1908 
1909 #endif /* USDT2 */
1910 
1911 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))
1912   JNIWrapper("CallVoidMethod");
1913 #ifndef USDT2
1914   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);
1915 #else /* USDT2 */
1916   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(
1917                                    env, obj, (uintptr_t) methodID);
1918 #endif /* USDT2 */
1919   DT_VOID_RETURN_MARK(CallVoidMethod);
1920 
1921   va_list args;
1922   va_start(args, methodID);
1923   JavaValue jvalue(T_VOID);
1924   JNI_ArgumentPusherVaArg ap(methodID, args);
1925   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1926   va_end(args);
1927 JNI_END
1928 
1929 
1930 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))
1931   JNIWrapper("CallVoidMethodV");
1932 #ifndef USDT2
1933   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);
1934 #else /* USDT2 */
1935   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(
1936                                     env, obj, (uintptr_t) methodID);
1937 #endif /* USDT2 */
1938   DT_VOID_RETURN_MARK(CallVoidMethodV);
1939 
1940   JavaValue jvalue(T_VOID);
1941   JNI_ArgumentPusherVaArg ap(methodID, args);
1942   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1943 JNI_END
1944 
1945 
1946 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))
1947   JNIWrapper("CallVoidMethodA");
1948 #ifndef USDT2
1949   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);
1950 #else /* USDT2 */
1951   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(
1952                                     env, obj, (uintptr_t) methodID);
1953 #endif /* USDT2 */
1954   DT_VOID_RETURN_MARK(CallVoidMethodA);
1955 
1956   JavaValue jvalue(T_VOID);
1957   JNI_ArgumentPusherArray ap(methodID, args);
1958   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);
1959 JNI_END
1960 
1961 
1962 #ifndef USDT2
1963 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \
1964 \
1965   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\
1966   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\
1967   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\
1968 \
1969 JNI_ENTRY(ResultType, \
1970           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
1971   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
1972 \
1973   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\
1974   ResultType ret;\
1975   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
1976                      (const ResultType&)ret);\
1977 \
1978   va_list args; \
1979   va_start(args, methodID); \
1980   JavaValue jvalue(Tag); \
1981   JNI_ArgumentPusherVaArg ap(methodID, args); \
1982   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1983   va_end(args); \
1984   ret = jvalue.get_##ResultType(); \
1985   return ret;\
1986 JNI_END \
1987 \
1988 JNI_ENTRY(ResultType, \
1989           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
1990   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \
1991   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\
1992   ResultType ret;\
1993   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
1994                      (const ResultType&)ret);\
1995 \
1996   JavaValue jvalue(Tag); \
1997   JNI_ArgumentPusherVaArg ap(methodID, args); \
1998   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
1999   ret = jvalue.get_##ResultType(); \
2000   return ret;\
2001 JNI_END \
2002 \
2003 JNI_ENTRY(ResultType, \
2004           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2005   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2006   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\
2007   ResultType ret;\
2008   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2009                      (const ResultType&)ret);\
2010 \
2011   JavaValue jvalue(Tag); \
2012   JNI_ArgumentPusherArray 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 // the runtime type of subword integral basic types is integer
2019 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)
2020 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)
2021 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)
2022 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)
2023 
2024 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)
2025 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)
2026 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)
2027 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)
2028 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)
2029 
2030 
2031 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);
2032 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);
2033 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);
2034 
2035 #else /* USDT2 */
2036 
2037 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \
2038                                     , EntryProbe, ReturnProbe)      \
2039 \
2040   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \
2041                           , ReturnProbe);\
2042 \
2043 JNI_ENTRY(ResultType, \
2044           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \
2045   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \
2046 \
2047   EntryProbe;\
2048   ResultType ret;\
2049   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \
2050                      (const ResultType&)ret);\
2051 \
2052   va_list args; \
2053   va_start(args, methodID); \
2054   JavaValue jvalue(Tag); \
2055   JNI_ArgumentPusherVaArg ap(methodID, args); \
2056   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2057   va_end(args); \
2058   ret = jvalue.get_##ResultType(); \
2059   return ret;\
2060 JNI_END
2061 
2062 // the runtime type of subword integral basic types is integer
2063 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN
2064                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2065                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))
2066 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE
2067                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2068                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))
2069 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR
2070                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2071                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))
2072 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT
2073                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2074                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))
2075 
2076 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT
2077                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2078                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))
2079 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT
2080                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2081                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))
2082 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG
2083                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2084 // Float and double probes don't return value because dtrace doesn't currently support it
2085                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))
2086 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT
2087                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2088                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())
2089 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE
2090                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),
2091                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())
2092 
2093 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \
2094                                     , EntryProbe, ReturnProbe)      \
2095 \
2096   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \
2097                           , ReturnProbe);\
2098 \
2099 JNI_ENTRY(ResultType, \
2100           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \
2101   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \
2102 \
2103   EntryProbe;\
2104   ResultType ret;\
2105   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \
2106                      (const ResultType&)ret);\
2107 \
2108   JavaValue jvalue(Tag); \
2109   JNI_ArgumentPusherVaArg ap(methodID, args); \
2110   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2111   ret = jvalue.get_##ResultType(); \
2112   return ret;\
2113 JNI_END
2114 
2115 // the runtime type of subword integral basic types is integer
2116 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN
2117                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2118                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))
2119 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE
2120                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2121                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))
2122 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR
2123                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2124                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))
2125 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT
2126                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2127                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))
2128 
2129 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT
2130                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2131                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))
2132 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT
2133                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2134                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))
2135 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG
2136                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2137 // Float and double probes don't return value because dtrace doesn't currently support it
2138                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))
2139 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT
2140                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2141                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())
2142 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE
2143                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),
2144                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())
2145 
2146 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \
2147                                     , EntryProbe, ReturnProbe)      \
2148 \
2149   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \
2150                           , ReturnProbe);\
2151 \
2152 JNI_ENTRY(ResultType, \
2153           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \
2154   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \
2155 \
2156   EntryProbe;\
2157   ResultType ret;\
2158   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \
2159                      (const ResultType&)ret);\
2160 \
2161   JavaValue jvalue(Tag); \
2162   JNI_ArgumentPusherArray ap(methodID, args); \
2163   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \
2164   ret = jvalue.get_##ResultType(); \
2165   return ret;\
2166 JNI_END
2167 
2168 // the runtime type of subword integral basic types is integer
2169 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN
2170                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2171                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))
2172 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE
2173                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2174                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))
2175 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR
2176                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2177                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))
2178 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT
2179                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2180                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))
2181 
2182 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT
2183                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2184                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))
2185 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT
2186                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2187                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))
2188 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG
2189                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2190 // Float and double probes don't return value because dtrace doesn't currently support it
2191                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))
2192 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT
2193                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2194                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())
2195 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE
2196                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),
2197                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())
2198 
2199 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod
2200                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());
2201 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV
2202                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());
2203 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA
2204                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());
2205 #endif /* USDT2 */
2206 
2207 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))
2208   JNIWrapper("CallNonvirtualVoidMethod");
2209 
2210 #ifndef USDT2
2211   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,
2212                env, obj, cls, methodID);
2213 #else /* USDT2 */
2214   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(
2215                env, obj, cls, (uintptr_t) methodID);
2216 #endif /* USDT2 */
2217   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);
2218 
2219   va_list args;
2220   va_start(args, methodID);
2221   JavaValue jvalue(T_VOID);
2222   JNI_ArgumentPusherVaArg ap(methodID, args);
2223   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2224   va_end(args);
2225 JNI_END
2226 
2227 
2228 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))
2229   JNIWrapper("CallNonvirtualVoidMethodV");
2230 
2231 #ifndef USDT2
2232   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,
2233                env, obj, cls, methodID);
2234 #else /* USDT2 */
2235   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(
2236                env, obj, cls, (uintptr_t) methodID);
2237 #endif /* USDT2 */
2238   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);
2239 
2240   JavaValue jvalue(T_VOID);
2241   JNI_ArgumentPusherVaArg ap(methodID, args);
2242   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2243 JNI_END
2244 
2245 
2246 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))
2247   JNIWrapper("CallNonvirtualVoidMethodA");
2248 #ifndef USDT2
2249   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,
2250                 env, obj, cls, methodID);
2251 #else /* USDT2 */
2252   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(
2253                 env, obj, cls, (uintptr_t) methodID);
2254 #endif /* USDT2 */
2255   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);
2256   JavaValue jvalue(T_VOID);
2257   JNI_ArgumentPusherArray ap(methodID, args);
2258   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);
2259 JNI_END
2260 
2261 
2262 #ifndef USDT2
2263 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \
2264 \
2265   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\
2266   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\
2267   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\
2268 \
2269 JNI_ENTRY(ResultType, \
2270           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2271   JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2272 \
2273   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\
2274   ResultType ret = 0;\
2275   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2276                      (const ResultType&)ret);\
2277 \
2278   va_list args; \
2279   va_start(args, methodID); \
2280   JavaValue jvalue(Tag); \
2281   JNI_ArgumentPusherVaArg ap(methodID, args); \
2282   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2283   va_end(args); \
2284   ret = jvalue.get_##ResultType(); \
2285   return ret;\
2286 JNI_END \
2287 \
2288 JNI_ENTRY(ResultType, \
2289           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2290   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2291   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\
2292   ResultType ret = 0;\
2293   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2294                      (const ResultType&)ret);\
2295 \
2296   JavaValue jvalue(Tag); \
2297   JNI_ArgumentPusherVaArg ap(methodID, args); \
2298   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2299   ret = jvalue.get_##ResultType(); \
2300   return ret;\
2301 JNI_END \
2302 \
2303 JNI_ENTRY(ResultType, \
2304           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2305   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2306   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\
2307   ResultType ret = 0;\
2308   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2309                      (const ResultType&)ret);\
2310 \
2311   JavaValue jvalue(Tag); \
2312   JNI_ArgumentPusherArray 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 // the runtime type of subword integral basic types is integer
2319 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)
2320 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)
2321 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)
2322 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)
2323 
2324 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)
2325 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)
2326 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)
2327 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)
2328 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)
2329 
2330 
2331 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);
2332 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);
2333 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);
2334 
2335 #else /* USDT2 */
2336 
2337 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \
2338                                 , EntryProbe, ResultProbe) \
2339 \
2340   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \
2341                           , ResultProbe);                               \
2342 \
2343 JNI_ENTRY(ResultType, \
2344           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \
2345   JNIWrapper("CallStatic" XSTR(Result) "Method"); \
2346 \
2347   EntryProbe; \
2348   ResultType ret = 0;\
2349   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \
2350                      (const ResultType&)ret);\
2351 \
2352   va_list args; \
2353   va_start(args, methodID); \
2354   JavaValue jvalue(Tag); \
2355   JNI_ArgumentPusherVaArg ap(methodID, args); \
2356   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2357   va_end(args); \
2358   ret = jvalue.get_##ResultType(); \
2359   return ret;\
2360 JNI_END
2361 
2362 // the runtime type of subword integral basic types is integer
2363 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN
2364                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2365                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));
2366 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE
2367                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2368                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));
2369 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR
2370                         , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2371                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));
2372 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT
2373                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2374                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));
2375 
2376 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT
2377                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2378                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));
2379 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT
2380                         , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2381                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));
2382 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG
2383                         , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2384                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));
2385 // Float and double probes don't return value because dtrace doesn't currently support it
2386 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT
2387                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2388                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());
2389 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE
2390                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),
2391                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());
2392 
2393 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \
2394                                 , EntryProbe, ResultProbe) \
2395 \
2396   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \
2397                           , ResultProbe);                               \
2398 \
2399 JNI_ENTRY(ResultType, \
2400           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \
2401   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \
2402 \
2403   EntryProbe; \
2404   ResultType ret = 0;\
2405   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \
2406                      (const ResultType&)ret);\
2407 \
2408   JavaValue jvalue(Tag); \
2409   JNI_ArgumentPusherVaArg ap(methodID, args); \
2410   /* Make sure class is initialized before trying to invoke its method */ \
2411   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \
2412   k()->initialize(CHECK_0); \
2413   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2414   va_end(args); \
2415   ret = jvalue.get_##ResultType(); \
2416   return ret;\
2417 JNI_END
2418 
2419 // the runtime type of subword integral basic types is integer
2420 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN
2421                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2422                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));
2423 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE
2424                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2425                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));
2426 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR
2427                         , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2428                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));
2429 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT
2430                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2431                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));
2432 
2433 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT
2434                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2435                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));
2436 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT
2437                         , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2438                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));
2439 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG
2440                         , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2441                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));
2442 // Float and double probes don't return value because dtrace doesn't currently support it
2443 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT
2444                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2445                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());
2446 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE
2447                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),
2448                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());
2449 
2450 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \
2451                                 , EntryProbe, ResultProbe) \
2452 \
2453   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \
2454                           , ResultProbe);                               \
2455 \
2456 JNI_ENTRY(ResultType, \
2457           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \
2458   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \
2459 \
2460   EntryProbe; \
2461   ResultType ret = 0;\
2462   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \
2463                      (const ResultType&)ret);\
2464 \
2465   JavaValue jvalue(Tag); \
2466   JNI_ArgumentPusherArray ap(methodID, args); \
2467   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \
2468   ret = jvalue.get_##ResultType(); \
2469   return ret;\
2470 JNI_END
2471 
2472 // the runtime type of subword integral basic types is integer
2473 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN
2474                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2475                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));
2476 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE
2477                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2478                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));
2479 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR
2480                         , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2481                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));
2482 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT
2483                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2484                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));
2485 
2486 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT
2487                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2488                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));
2489 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT
2490                         , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2491                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));
2492 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG
2493                         , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2494                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));
2495 // Float and double probes don't return value because dtrace doesn't currently support it
2496 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT
2497                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2498                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());
2499 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE
2500                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),
2501                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());
2502 
2503 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod
2504                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());
2505 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV
2506                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());
2507 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA
2508                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());
2509 #endif /* USDT2 */
2510 
2511 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))
2512   JNIWrapper("CallStaticVoidMethod");
2513 #ifndef USDT2
2514   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);
2515 #else /* USDT2 */
2516   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(
2517                                          env, cls, (uintptr_t) methodID);
2518 #endif /* USDT2 */
2519   DT_VOID_RETURN_MARK(CallStaticVoidMethod);
2520 
2521   va_list args;
2522   va_start(args, methodID);
2523   JavaValue jvalue(T_VOID);
2524   JNI_ArgumentPusherVaArg ap(methodID, args);
2525   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2526   va_end(args);
2527 JNI_END
2528 
2529 
2530 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))
2531   JNIWrapper("CallStaticVoidMethodV");
2532 #ifndef USDT2
2533   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);
2534 #else /* USDT2 */
2535   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(
2536                                           env, cls, (uintptr_t) methodID);
2537 #endif /* USDT2 */
2538   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);
2539 
2540   JavaValue jvalue(T_VOID);
2541   JNI_ArgumentPusherVaArg ap(methodID, args);
2542   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2543 JNI_END
2544 
2545 
2546 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))
2547   JNIWrapper("CallStaticVoidMethodA");
2548 #ifndef USDT2
2549   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);
2550 #else /* USDT2 */
2551   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(
2552                                           env, cls, (uintptr_t) methodID);
2553 #endif /* USDT2 */
2554   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);
2555 
2556   JavaValue jvalue(T_VOID);
2557   JNI_ArgumentPusherArray ap(methodID, args);
2558   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);
2559 JNI_END
2560 
2561 
2562 //
2563 // Accessing Fields
2564 //
2565 
2566 
2567 #ifndef USDT2
2568 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);
2569 #else /* USDT2 */
2570 DT_RETURN_MARK_DECL(GetFieldID, jfieldID
2571                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));
2572 #endif /* USDT2 */
2573 
2574 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,
2575           const char *name, const char *sig))
2576   JNIWrapper("GetFieldID");
2577 #ifndef USDT2
2578   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);
2579 #else /* USDT2 */
2580   HOTSPOT_JNI_GETFIELDID_ENTRY(
2581                                env, clazz, (char *) name, (char *) sig);
2582 #endif /* USDT2 */
2583   jfieldID ret = 0;
2584   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);
2585 
2586   // The class should have been loaded (we have an instance of the class
2587   // passed in) so the field and signature should already be in the symbol
2588   // table.  If they're not there, the field doesn't exist.
2589   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2590   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2591   if (fieldname == NULL || signame == NULL) {
2592     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2593   }
2594   KlassHandle k(THREAD,
2595                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2596   // Make sure class is initialized before handing id's out to fields
2597   k()->initialize(CHECK_NULL);
2598 
2599   fieldDescriptor fd;
2600   if (!k()->oop_is_instance() ||
2601       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {
2602     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2603   }
2604 
2605   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop
2606   // It may also have hash bits for k, if VerifyJNIFields is turned on.
2607   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());
2608   return ret;
2609 JNI_END
2610 
2611 
2612 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))
2613   JNIWrapper("GetObjectField");
2614 #ifndef USDT2
2615   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);
2616 #else /* USDT2 */
2617   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(
2618                                    env, obj, (uintptr_t) fieldID);
2619 #endif /* USDT2 */
2620   oop o = JNIHandles::resolve_non_null(obj);
2621   Klass* k = o->klass();
2622   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2623   // Keep JVMTI addition small and only check enabled flag here.
2624   // jni_GetField_probe() assumes that is okay to create handles.
2625   if (JvmtiExport::should_post_field_access()) {
2626     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);
2627   }
2628   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));
2629 #if INCLUDE_ALL_GCS
2630   // If G1 is enabled and we are accessing the value of the referent
2631   // field in a reference object then we need to register a non-null
2632   // referent with the SATB barrier.
2633   if (UseG1GC) {
2634     bool needs_barrier = false;
2635 
2636     if (ret != NULL &&
2637         offset == java_lang_ref_Reference::referent_offset &&
2638         InstanceKlass::cast(k)->reference_type() != REF_NONE) {
2639       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");
2640       needs_barrier = true;
2641     }
2642 
2643     if (needs_barrier) {
2644       oop referent = JNIHandles::resolve(ret);
2645       G1SATBCardTableModRefBS::enqueue(referent);
2646     }
2647   }
2648 #endif // INCLUDE_ALL_GCS
2649 #ifndef USDT2
2650   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);
2651 #else /* USDT2 */
2652 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(
2653                                   ret);
2654 #endif /* USDT2 */
2655   return ret;
2656 JNI_END
2657 
2658 
2659 #ifndef USDT2
2660 #define DEFINE_GETFIELD(Return,Fieldname,Result) \
2661 \
2662   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\
2663 \
2664 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2665   JNIWrapper("Get" XSTR(Result) "Field"); \
2666 \
2667   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\
2668   Return ret = 0;\
2669   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2670 \
2671   oop o = JNIHandles::resolve_non_null(obj); \
2672   Klass* k = o->klass(); \
2673   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
2674   /* Keep JVMTI addition small and only check enabled flag here.       */ \
2675   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2676   /* and creates a ResetNoHandleMark.                                   */ \
2677   if (JvmtiExport::should_post_field_access()) { \
2678     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2679   } \
2680   ret = o->Fieldname##_field(offset); \
2681   return ret; \
2682 JNI_END
2683 
2684 DEFINE_GETFIELD(jboolean, bool,   Boolean)
2685 DEFINE_GETFIELD(jbyte,    byte,   Byte)
2686 DEFINE_GETFIELD(jchar,    char,   Char)
2687 DEFINE_GETFIELD(jshort,   short,  Short)
2688 DEFINE_GETFIELD(jint,     int,    Int)
2689 DEFINE_GETFIELD(jlong,    long,   Long)
2690 DEFINE_GETFIELD(jfloat,   float,  Float)
2691 DEFINE_GETFIELD(jdouble,  double, Double)
2692 
2693 #else /* USDT2 */
2694 
2695 #define DEFINE_GETFIELD(Return,Fieldname,Result \
2696   , EntryProbe, ReturnProbe) \
2697 \
2698   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \
2699   , ReturnProbe); \
2700 \
2701 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \
2702   JNIWrapper("Get" XSTR(Result) "Field"); \
2703 \
2704   EntryProbe; \
2705   Return ret = 0;\
2706   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\
2707 \
2708   oop o = JNIHandles::resolve_non_null(obj); \
2709   Klass* k = o->klass(); \
2710   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
2711   /* Keep JVMTI addition small and only check enabled flag here.       */ \
2712   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \
2713   /* and creates a ResetNoHandleMark.                                   */ \
2714   if (JvmtiExport::should_post_field_access()) { \
2715     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \
2716   } \
2717   ret = o->Fieldname##_field(offset); \
2718   return ret; \
2719 JNI_END
2720 
2721 DEFINE_GETFIELD(jboolean, bool,   Boolean
2722                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2723                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))
2724 DEFINE_GETFIELD(jbyte,    byte,   Byte
2725                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2726                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))
2727 DEFINE_GETFIELD(jchar,    char,   Char
2728                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2729                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))
2730 DEFINE_GETFIELD(jshort,   short,  Short
2731                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2732                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))
2733 DEFINE_GETFIELD(jint,     int,    Int
2734                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2735                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))
2736 DEFINE_GETFIELD(jlong,    long,   Long
2737                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2738                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))
2739 // Float and double probes don't return value because dtrace doesn't currently support it
2740 DEFINE_GETFIELD(jfloat,   float,  Float
2741                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2742                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())
2743 DEFINE_GETFIELD(jdouble,  double, Double
2744                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2745                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())
2746 #endif /* USDT2 */
2747 
2748 address jni_GetBooleanField_addr() {
2749   return (address)jni_GetBooleanField;
2750 }
2751 address jni_GetByteField_addr() {
2752   return (address)jni_GetByteField;
2753 }
2754 address jni_GetCharField_addr() {
2755   return (address)jni_GetCharField;
2756 }
2757 address jni_GetShortField_addr() {
2758   return (address)jni_GetShortField;
2759 }
2760 address jni_GetIntField_addr() {
2761   return (address)jni_GetIntField;
2762 }
2763 address jni_GetLongField_addr() {
2764   return (address)jni_GetLongField;
2765 }
2766 address jni_GetFloatField_addr() {
2767   return (address)jni_GetFloatField;
2768 }
2769 address jni_GetDoubleField_addr() {
2770   return (address)jni_GetDoubleField;
2771 }
2772 
2773 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))
2774   JNIWrapper("SetObjectField");
2775 #ifndef USDT2
2776   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);
2777 #else /* USDT2 */
2778   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(
2779                                    env, obj, (uintptr_t) fieldID, value);
2780 #endif /* USDT2 */
2781   oop o = JNIHandles::resolve_non_null(obj);
2782   Klass* k = o->klass();
2783   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2784   // Keep JVMTI addition small and only check enabled flag here.
2785   // jni_SetField_probe_nh() assumes that is not okay to create handles
2786   // and creates a ResetNoHandleMark.
2787   if (JvmtiExport::should_post_field_modification()) {
2788     jvalue field_value;
2789     field_value.l = value;
2790     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);
2791   }
2792   o->obj_field_put(offset, JNIHandles::resolve(value));
2793 #ifndef USDT2
2794   DTRACE_PROBE(hotspot_jni, SetObjectField__return);
2795 #else /* USDT2 */
2796   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(
2797 );
2798 #endif /* USDT2 */
2799 JNI_END
2800 
2801 #ifndef USDT2
2802 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \
2803 \
2804 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2805   JNIWrapper("Set" XSTR(Result) "Field"); \
2806 \
2807   FP_SELECT_##Result( \
2808     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \
2809     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \
2810 \
2811   oop o = JNIHandles::resolve_non_null(obj); \
2812   Klass* k = o->klass(); \
2813   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
2814   /* Keep JVMTI addition small and only check enabled flag here.       */ \
2815   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2816   /* and creates a ResetNoHandleMark.                                   */ \
2817   if (JvmtiExport::should_post_field_modification()) { \
2818     jvalue field_value; \
2819     field_value.unionType = value; \
2820     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2821   } \
2822   o->Fieldname##_field_put(offset, value); \
2823   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\
2824 JNI_END
2825 
2826 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)
2827 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)
2828 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)
2829 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)
2830 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)
2831 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)
2832 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)
2833 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)
2834 
2835 #else /* USDT2 */
2836 
2837 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \
2838                         , EntryProbe, ReturnProbe) \
2839 \
2840 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \
2841   JNIWrapper("Set" XSTR(Result) "Field"); \
2842 \
2843   EntryProbe; \
2844 \
2845   oop o = JNIHandles::resolve_non_null(obj); \
2846   Klass* k = o->klass(); \
2847   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \
2848   /* Keep JVMTI addition small and only check enabled flag here.       */ \
2849   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \
2850   /* and creates a ResetNoHandleMark.                                   */ \
2851   if (JvmtiExport::should_post_field_modification()) { \
2852     jvalue field_value; \
2853     field_value.unionType = value; \
2854     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \
2855   } \
2856   if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
2857   o->Fieldname##_field_put(offset, value); \
2858   ReturnProbe; \
2859 JNI_END
2860 
2861 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z
2862                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2863                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
2864 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b
2865                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2866                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())
2867 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c
2868                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2869                 HOTSPOT_JNI_SETCHARFIELD_RETURN())
2870 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s
2871                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2872                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())
2873 DEFINE_SETFIELD(jint,     int,    Int,     'I', i
2874                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2875                 HOTSPOT_JNI_SETINTFIELD_RETURN())
2876 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j
2877                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),
2878                 HOTSPOT_JNI_SETLONGFIELD_RETURN())
2879 // Float and double probes don't return value because dtrace doesn't currently support it
2880 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f
2881                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2882                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())
2883 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d
2884                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),
2885                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())
2886 #endif /* USDT2 */
2887 
2888 #ifndef USDT2
2889 DT_RETURN_MARK_DECL(ToReflectedField, jobject);
2890 #else /* USDT2 */
2891 DT_RETURN_MARK_DECL(ToReflectedField, jobject
2892                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));
2893 #endif /* USDT2 */
2894 
2895 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))
2896   JNIWrapper("ToReflectedField");
2897 #ifndef USDT2
2898   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,
2899                 env, cls, fieldID, isStatic);
2900 #else /* USDT2 */
2901   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(
2902                 env, cls, (uintptr_t) fieldID, isStatic);
2903 #endif /* USDT2 */
2904   jobject ret = NULL;
2905   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);
2906 
2907   fieldDescriptor fd;
2908   bool found = false;
2909   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));
2910 
2911   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");
2912 
2913   if (isStatic) {
2914     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.
2915     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2916     assert(id->is_static_field_id(), "invalid static field id");
2917     found = id->find_local_field(&fd);
2918   } else {
2919     // Non-static field. The fieldID is really the offset of the field within the instanceOop.
2920     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);
2921     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);
2922   }
2923   assert(found, "bad fieldID passed into jni_ToReflectedField");
2924   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);
2925   ret = JNIHandles::make_local(env, reflected);
2926   return ret;
2927 JNI_END
2928 
2929 
2930 //
2931 // Accessing Static Fields
2932 //
2933 #ifndef USDT2
2934 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);
2935 #else /* USDT2 */
2936 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID
2937                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));
2938 #endif /* USDT2 */
2939 
2940 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,
2941           const char *name, const char *sig))
2942   JNIWrapper("GetStaticFieldID");
2943 #ifndef USDT2
2944   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);
2945 #else /* USDT2 */
2946   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(
2947                                      env, clazz, (char *) name, (char *) sig);
2948 #endif /* USDT2 */
2949   jfieldID ret = NULL;
2950   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);
2951 
2952   // The class should have been loaded (we have an instance of the class
2953   // passed in) so the field and signature should already be in the symbol
2954   // table.  If they're not there, the field doesn't exist.
2955   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));
2956   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));
2957   if (fieldname == NULL || signame == NULL) {
2958     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2959   }
2960   KlassHandle k(THREAD,
2961                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
2962   // Make sure class is initialized before handing id's out to static fields
2963   k()->initialize(CHECK_NULL);
2964 
2965   fieldDescriptor fd;
2966   if (!k()->oop_is_instance() ||
2967       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {
2968     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);
2969   }
2970 
2971   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*
2972   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());
2973   debug_only(id->set_is_static_field_id();)
2974 
2975   debug_only(id->verify(fd.field_holder()));
2976 
2977   ret = jfieldIDWorkaround::to_static_jfieldID(id);
2978   return ret;
2979 JNI_END
2980 
2981 
2982 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))
2983   JNIWrapper("GetStaticObjectField");
2984 #ifndef USDT2
2985   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);
2986 #else /* USDT2 */
2987   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(
2988                                          env, clazz, (uintptr_t) fieldID);
2989 #endif /* USDT2 */
2990 #if INCLUDE_JNI_CHECK
2991   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)
2992 #endif // INCLUDE_JNI_CHECK
2993   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
2994   assert(id->is_static_field_id(), "invalid static field id");
2995   // Keep JVMTI addition small and only check enabled flag here.
2996   // jni_GetField_probe() assumes that is okay to create handles.
2997   if (JvmtiExport::should_post_field_access()) {
2998     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);
2999   }
3000   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));
3001 #ifndef USDT2
3002   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);
3003 #else /* USDT2 */
3004   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(
3005                                           ret);
3006 #endif /* USDT2 */
3007   return ret;
3008 JNI_END
3009 
3010 #ifndef USDT2
3011 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \
3012 \
3013   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\
3014 \
3015 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3016   JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3017   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\
3018   Return ret = 0;\
3019   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3020                      (const Return&)ret);\
3021   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3022   assert(id->is_static_field_id(), "invalid static field id"); \
3023   /* Keep JVMTI addition small and only check enabled flag here. */ \
3024   /* jni_GetField_probe() assumes that is okay to create handles. */ \
3025   if (JvmtiExport::should_post_field_access()) { \
3026     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3027   } \
3028   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3029   return ret;\
3030 JNI_END
3031 
3032 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)
3033 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)
3034 DEFINE_GETSTATICFIELD(jchar,    char,   Char)
3035 DEFINE_GETSTATICFIELD(jshort,   short,  Short)
3036 DEFINE_GETSTATICFIELD(jint,     int,    Int)
3037 DEFINE_GETSTATICFIELD(jlong,    long,   Long)
3038 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)
3039 DEFINE_GETSTATICFIELD(jdouble,  double, Double)
3040 
3041 #else /* USDT2 */
3042 
3043 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \
3044                               , EntryProbe, ReturnProbe) \
3045 \
3046   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \
3047                           , ReturnProbe);                                          \
3048 \
3049 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \
3050   JNIWrapper("GetStatic" XSTR(Result) "Field"); \
3051   EntryProbe; \
3052   Return ret = 0;\
3053   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \
3054                      (const Return&)ret);\
3055   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3056   assert(id->is_static_field_id(), "invalid static field id"); \
3057   /* Keep JVMTI addition small and only check enabled flag here. */ \
3058   /* jni_GetField_probe() assumes that is okay to create handles. */ \
3059   if (JvmtiExport::should_post_field_access()) { \
3060     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \
3061   } \
3062   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \
3063   return ret;\
3064 JNI_END
3065 
3066 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean
3067                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))
3068 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte
3069                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )
3070 DEFINE_GETSTATICFIELD(jchar,    char,   Char
3071                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )
3072 DEFINE_GETSTATICFIELD(jshort,   short,  Short
3073                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )
3074 DEFINE_GETSTATICFIELD(jint,     int,    Int
3075                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )
3076 DEFINE_GETSTATICFIELD(jlong,    long,   Long
3077                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )
3078 // Float and double probes don't return value because dtrace doesn't currently support it
3079 DEFINE_GETSTATICFIELD(jfloat,   float,  Float
3080                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )
3081 DEFINE_GETSTATICFIELD(jdouble,  double, Double
3082                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )
3083 #endif /* USDT2 */
3084 
3085 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))
3086   JNIWrapper("SetStaticObjectField");
3087 #ifndef USDT2
3088   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);
3089 #else /* USDT2 */
3090  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(
3091                                         env, clazz, (uintptr_t) fieldID, value);
3092 #endif /* USDT2 */
3093   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);
3094   assert(id->is_static_field_id(), "invalid static field id");
3095   // Keep JVMTI addition small and only check enabled flag here.
3096   // jni_SetField_probe() assumes that is okay to create handles.
3097   if (JvmtiExport::should_post_field_modification()) {
3098     jvalue field_value;
3099     field_value.l = value;
3100     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);
3101   }
3102   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));
3103 #ifndef USDT2
3104   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);
3105 #else /* USDT2 */
3106   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(
3107                                           );
3108 #endif /* USDT2 */
3109 JNI_END
3110 
3111 
3112 #ifndef USDT2
3113 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \
3114 \
3115 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3116   JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3117   FP_SELECT_##Result( \
3118      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \
3119      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \
3120 \
3121   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3122   assert(id->is_static_field_id(), "invalid static field id"); \
3123   /* Keep JVMTI addition small and only check enabled flag here. */ \
3124   /* jni_SetField_probe() assumes that is okay to create handles. */ \
3125   if (JvmtiExport::should_post_field_modification()) { \
3126     jvalue field_value; \
3127     field_value.unionType = value; \
3128     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3129   } \
3130   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3131   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\
3132 JNI_END
3133 
3134 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)
3135 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)
3136 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)
3137 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)
3138 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)
3139 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)
3140 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)
3141 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)
3142 
3143 #else /* USDT2 */
3144 
3145 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \
3146                               , EntryProbe, ReturnProbe) \
3147 \
3148 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \
3149   JNIWrapper("SetStatic" XSTR(Result) "Field"); \
3150   EntryProbe; \
3151 \
3152   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \
3153   assert(id->is_static_field_id(), "invalid static field id"); \
3154   /* Keep JVMTI addition small and only check enabled flag here. */ \
3155   /* jni_SetField_probe() assumes that is okay to create handles. */ \
3156   if (JvmtiExport::should_post_field_modification()) { \
3157     jvalue field_value; \
3158     field_value.unionType = value; \
3159     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \
3160   } \
3161   if (SigType == 'Z') { value = ((jboolean)value) & 1; } \
3162   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \
3163   ReturnProbe;\
3164 JNI_END
3165 
3166 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z
3167                       , HOTSPOT_JNI_SETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),
3168                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())
3169 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b
3170                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3171                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())
3172 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c
3173                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3174                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())
3175 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s
3176                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3177                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())
3178 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i
3179                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3180                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())
3181 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j
3182                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),
3183                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())
3184 // Float and double probes don't return value because dtrace doesn't currently support it
3185 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f
3186                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3187                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())
3188 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d
3189                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),
3190                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())
3191 #endif /* USDT2 */
3192 
3193 //
3194 // String Operations
3195 //
3196 
3197 // Unicode Interface
3198 
3199 #ifndef USDT2
3200 DT_RETURN_MARK_DECL(NewString, jstring);
3201 #else /* USDT2 */
3202 DT_RETURN_MARK_DECL(NewString, jstring
3203                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));
3204 #endif /* USDT2 */
3205 
3206 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))
3207   JNIWrapper("NewString");
3208 #ifndef USDT2
3209   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);
3210 #else /* USDT2 */
3211  HOTSPOT_JNI_NEWSTRING_ENTRY(
3212                              env, (uint16_t *) unicodeChars, len);
3213 #endif /* USDT2 */
3214   jstring ret = NULL;
3215   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);
3216   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);
3217   ret = (jstring) JNIHandles::make_local(env, string);
3218   return ret;
3219 JNI_END
3220 
3221 
3222 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))
3223   JNIWrapper("GetStringLength");
3224 #ifndef USDT2
3225   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);
3226 #else /* USDT2 */
3227   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(
3228                                     env, string);
3229 #endif /* USDT2 */
3230   jsize ret = 0;
3231   oop s = JNIHandles::resolve_non_null(string);
3232   if (java_lang_String::value(s) != NULL) {
3233     ret = java_lang_String::length(s);
3234   }
3235 #ifndef USDT2
3236   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);
3237 #else /* USDT2 */
3238  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(
3239                                     ret);
3240 #endif /* USDT2 */
3241   return ret;
3242 JNI_END
3243 
3244 
3245 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(
3246   JNIEnv *env, jstring string, jboolean *isCopy))
3247   JNIWrapper("GetStringChars");
3248 #ifndef USDT2
3249   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);
3250 #else /* USDT2 */
3251  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(
3252                                   env, string, (uintptr_t *) isCopy);
3253 #endif /* USDT2 */
3254   jchar* buf = NULL;
3255   oop s = JNIHandles::resolve_non_null(string);
3256   typeArrayOop s_value = java_lang_String::value(s);
3257   if (s_value != NULL) {
3258     int s_len = java_lang_String::length(s);
3259     int s_offset = java_lang_String::offset(s);
3260     buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal);  // add one for zero termination
3261     /* JNI Specification states return NULL on OOM */
3262     if (buf != NULL) {
3263       if (s_len > 0) {
3264         memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);
3265       }
3266       buf[s_len] = 0;
3267       //%note jni_5
3268       if (isCopy != NULL) {
3269         *isCopy = JNI_TRUE;
3270       }
3271     }
3272   }
3273 #ifndef USDT2
3274   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);
3275 #else /* USDT2 */
3276   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(
3277                                     buf);
3278 #endif /* USDT2 */
3279   return buf;
3280 JNI_END
3281 
3282 
3283 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))
3284   JNIWrapper("ReleaseStringChars");
3285 #ifndef USDT2
3286   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);
3287 #else /* USDT2 */
3288   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(
3289                                        env, str, (uint16_t *) chars);
3290 #endif /* USDT2 */
3291   //%note jni_6
3292   if (chars != NULL) {
3293     // Since String objects are supposed to be immutable, don't copy any
3294     // new data back.  A bad user will have to go after the char array.
3295     FreeHeap((void*) chars);
3296   }
3297 #ifndef USDT2
3298   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);
3299 #else /* USDT2 */
3300   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(
3301 );
3302 #endif /* USDT2 */
3303 JNI_END
3304 
3305 
3306 // UTF Interface
3307 
3308 #ifndef USDT2
3309 DT_RETURN_MARK_DECL(NewStringUTF, jstring);
3310 #else /* USDT2 */
3311 DT_RETURN_MARK_DECL(NewStringUTF, jstring
3312                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));
3313 #endif /* USDT2 */
3314 
3315 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))
3316   JNIWrapper("NewStringUTF");
3317 #ifndef USDT2
3318   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);
3319 #else /* USDT2 */
3320   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(
3321                                  env, (char *) bytes);
3322 #endif /* USDT2 */
3323   jstring ret;
3324   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);
3325 
3326   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);
3327   ret = (jstring) JNIHandles::make_local(env, result);
3328   return ret;
3329 JNI_END
3330 
3331 
3332 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))
3333   JNIWrapper("GetStringUTFLength");
3334 #ifndef USDT2
3335   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);
3336 #else /* USDT2 */
3337  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(
3338                                       env, string);
3339 #endif /* USDT2 */
3340   jsize ret = 0;
3341   oop java_string = JNIHandles::resolve_non_null(string);
3342   if (java_lang_String::value(java_string) != NULL) {
3343     ret = java_lang_String::utf8_length(java_string);
3344   }
3345 #ifndef USDT2
3346   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);
3347 #else /* USDT2 */
3348   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(
3349                                         ret);
3350 #endif /* USDT2 */
3351   return ret;
3352 JNI_END
3353 
3354 
3355 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))
3356   JNIWrapper("GetStringUTFChars");
3357 #ifndef USDT2
3358   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);
3359 #else /* USDT2 */
3360  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(
3361                                      env, string, (uintptr_t *) isCopy);
3362 #endif /* USDT2 */
3363   char* result = NULL;
3364   oop java_string = JNIHandles::resolve_non_null(string);
3365   if (java_lang_String::value(java_string) != NULL) {
3366     size_t length = java_lang_String::utf8_length(java_string);
3367     /* JNI Specification states return NULL on OOM */
3368     result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);
3369     if (result != NULL) {
3370       java_lang_String::as_utf8_string(java_string, result, (int) length + 1);
3371       if (isCopy != NULL) {
3372         *isCopy = JNI_TRUE;
3373       }
3374     }
3375   }
3376 #ifndef USDT2
3377   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);
3378 #else /* USDT2 */
3379  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(
3380                                       result);
3381 #endif /* USDT2 */
3382   return result;
3383 JNI_END
3384 
3385 
3386 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))
3387   JNIWrapper("ReleaseStringUTFChars");
3388 #ifndef USDT2
3389   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);
3390 #else /* USDT2 */
3391  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(
3392                                          env, str, (char *) chars);
3393 #endif /* USDT2 */
3394   if (chars != NULL) {
3395     FreeHeap((char*) chars);
3396   }
3397 #ifndef USDT2
3398   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);
3399 #else /* USDT2 */
3400 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(
3401 );
3402 #endif /* USDT2 */
3403 JNI_END
3404 
3405 
3406 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))
3407   JNIWrapper("GetArrayLength");
3408 #ifndef USDT2
3409   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);
3410 #else /* USDT2 */
3411  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(
3412                                   env, array);
3413 #endif /* USDT2 */
3414   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));
3415   assert(a->is_array(), "must be array");
3416   jsize ret = a->length();
3417 #ifndef USDT2
3418   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);
3419 #else /* USDT2 */
3420  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(
3421                                    ret);
3422 #endif /* USDT2 */
3423   return ret;
3424 JNI_END
3425 
3426 
3427 //
3428 // Object Array Operations
3429 //
3430 
3431 #ifndef USDT2
3432 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);
3433 #else /* USDT2 */
3434 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray
3435                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));
3436 #endif /* USDT2 */
3437 
3438 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))
3439   JNIWrapper("NewObjectArray");
3440 #ifndef USDT2
3441   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);
3442 #else /* USDT2 */
3443  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(
3444                                   env, length, elementClass, initialElement);
3445 #endif /* USDT2 */
3446   jobjectArray ret = NULL;
3447   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);
3448   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));
3449   Klass* ako = ek()->array_klass(CHECK_NULL);
3450   KlassHandle ak = KlassHandle(THREAD, ako);
3451   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);
3452   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);
3453   oop initial_value = JNIHandles::resolve(initialElement);
3454   if (initial_value != NULL) {  // array already initialized with NULL
3455     for (int index = 0; index < length; index++) {
3456       result->obj_at_put(index, initial_value);
3457     }
3458   }
3459   ret = (jobjectArray) JNIHandles::make_local(env, result);
3460   return ret;
3461 JNI_END
3462 
3463 #ifndef USDT2
3464 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);
3465 #else /* USDT2 */
3466 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject
3467                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));
3468 #endif /* USDT2 */
3469 
3470 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))
3471   JNIWrapper("GetObjectArrayElement");
3472 #ifndef USDT2
3473   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);
3474 #else /* USDT2 */
3475  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(
3476                                          env, array, index);
3477 #endif /* USDT2 */
3478   jobject ret = NULL;
3479   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);
3480   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3481   if (a->is_within_bounds(index)) {
3482     ret = JNIHandles::make_local(env, a->obj_at(index));
3483     return ret;
3484   } else {
3485     char buf[jintAsStringSize];
3486     sprintf(buf, "%d", index);
3487     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3488   }
3489 JNI_END
3490 
3491 #ifndef USDT2
3492 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);
3493 #else /* USDT2 */
3494 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement
3495                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());
3496 #endif /* USDT2 */
3497 
3498 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))
3499   JNIWrapper("SetObjectArrayElement");
3500 #ifndef USDT2
3501   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);
3502 #else /* USDT2 */
3503  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(
3504                                          env, array, index, value);
3505 #endif /* USDT2 */
3506   DT_VOID_RETURN_MARK(SetObjectArrayElement);
3507 
3508   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));
3509   oop v = JNIHandles::resolve(value);
3510   if (a->is_within_bounds(index)) {
3511     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {
3512       a->obj_at_put(index, v);
3513     } else {
3514       THROW(vmSymbols::java_lang_ArrayStoreException());
3515     }
3516   } else {
3517     char buf[jintAsStringSize];
3518     sprintf(buf, "%d", index);
3519     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);
3520   }
3521 JNI_END
3522 
3523 
3524 #ifndef USDT2
3525 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \
3526 \
3527   DT_RETURN_MARK_DECL(New##Result##Array, Return); \
3528 \
3529 JNI_ENTRY(Return, \
3530           jni_New##Result##Array(JNIEnv *env, jsize len)) \
3531   JNIWrapper("New" XSTR(Result) "Array"); \
3532   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\
3533   Return ret = NULL;\
3534   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3535 \
3536   oop obj= oopFactory::Allocator(len, CHECK_0); \
3537   ret = (Return) JNIHandles::make_local(env, obj); \
3538   return ret;\
3539 JNI_END
3540 
3541 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)
3542 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)
3543 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)
3544 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)
3545 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)
3546 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)
3547 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)
3548 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)
3549 
3550 #else /* USDT2 */
3551 
3552 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \
3553                               ,EntryProbe,ReturnProbe)  \
3554 \
3555   DT_RETURN_MARK_DECL(New##Result##Array, Return \
3556                       , ReturnProbe); \
3557 \
3558 JNI_ENTRY(Return, \
3559           jni_New##Result##Array(JNIEnv *env, jsize len)) \
3560   JNIWrapper("New" XSTR(Result) "Array"); \
3561   EntryProbe; \
3562   Return ret = NULL;\
3563   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\
3564 \
3565   oop obj= oopFactory::Allocator(len, CHECK_0); \
3566   ret = (Return) JNIHandles::make_local(env, obj); \
3567   return ret;\
3568 JNI_END
3569 
3570 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,
3571                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),
3572                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))
3573 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,
3574                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),
3575                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))
3576 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,
3577                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),
3578                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))
3579 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,
3580                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),
3581                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))
3582 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,
3583                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),
3584                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))
3585 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,
3586                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),
3587                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))
3588 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,
3589                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),
3590                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))
3591 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,
3592                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),
3593                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))
3594 #endif /* USDT2 */
3595 
3596 // Return an address which will fault if the caller writes to it.
3597 
3598 static char* get_bad_address() {
3599   static char* bad_address = NULL;
3600   if (bad_address == NULL) {
3601     size_t size = os::vm_allocation_granularity();
3602     bad_address = os::reserve_memory(size);
3603     if (bad_address != NULL) {
3604       os::protect_memory(bad_address, size, os::MEM_PROT_READ,
3605                          /*is_committed*/false);
3606       MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);
3607     }
3608   }
3609   return bad_address;
3610 }
3611 
3612 
3613 #ifndef USDT2
3614 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \
3615 \
3616 JNI_QUICK_ENTRY(ElementType*, \
3617           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3618   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3619   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\
3620   /* allocate an chunk of memory in c land */ \
3621   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3622   ElementType* result; \
3623   int len = a->length(); \
3624   if (len == 0) { \
3625     /* Empty array: legal but useless, can't return NULL. \
3626      * Return a pointer to something useless. \
3627      * Avoid asserts in typeArrayOop. */ \
3628     result = (ElementType*)get_bad_address(); \
3629   } else { \
3630     /* JNI Specification states return NULL on OOM */                    \
3631     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3632     if (result != NULL) {                                                \
3633       /* copy the array to the c chunk */                                \
3634       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \
3635       if (isCopy) {                                                      \
3636         *isCopy = JNI_TRUE;                                              \
3637       }                                                                  \
3638     }                                                                    \
3639   } \
3640   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\
3641   return result; \
3642 JNI_END
3643 
3644 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3645 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)
3646 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)
3647 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)
3648 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)
3649 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)
3650 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)
3651 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)
3652 
3653 #else /* USDT2 */
3654 
3655 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \
3656                                       , EntryProbe, ReturnProbe) \
3657 \
3658 JNI_QUICK_ENTRY(ElementType*, \
3659           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \
3660   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \
3661   EntryProbe; \
3662   /* allocate an chunk of memory in c land */ \
3663   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3664   ElementType* result; \
3665   int len = a->length(); \
3666   if (len == 0) { \
3667     /* Empty array: legal but useless, can't return NULL. \
3668      * Return a pointer to something useless. \
3669      * Avoid asserts in typeArrayOop. */ \
3670     result = (ElementType*)get_bad_address(); \
3671   } else { \
3672     /* JNI Specification states return NULL on OOM */                    \
3673     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \
3674     if (result != NULL) {                                                \
3675       /* copy the array to the c chunk */                                \
3676       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \
3677       if (isCopy) {                                                      \
3678         *isCopy = JNI_TRUE;                                              \
3679       }                                                                  \
3680     }                                                                    \
3681   } \
3682   ReturnProbe; \
3683   return result; \
3684 JNI_END
3685 
3686 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3687                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3688                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))
3689 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte
3690                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3691                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))
3692 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short
3693                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3694                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))
3695 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char
3696                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),
3697                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))
3698 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int
3699                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3700                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))
3701 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long
3702                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3703                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))
3704 // Float and double probes don't return value because dtrace doesn't currently support it
3705 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float
3706                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3707                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))
3708 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double
3709                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),
3710                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))
3711 #endif /* USDT2 */
3712 
3713 #ifndef USDT2
3714 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \
3715 \
3716 JNI_QUICK_ENTRY(void, \
3717           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3718                                              ElementType *buf, jint mode)) \
3719   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3720   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\
3721   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3722   int len = a->length(); \
3723   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \
3724     if ((mode == 0) || (mode == JNI_COMMIT)) { \
3725       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3726     } \
3727     if ((mode == 0) || (mode == JNI_ABORT)) { \
3728       FreeHeap(buf); \
3729     } \
3730   } \
3731   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\
3732 JNI_END
3733 
3734 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)
3735 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)
3736 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)
3737 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)
3738 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)
3739 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)
3740 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)
3741 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)
3742 
3743 #else /* USDT2 */
3744 
3745 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \
3746                                           , EntryProbe, ReturnProbe);\
3747 \
3748 JNI_QUICK_ENTRY(void, \
3749           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \
3750                                              ElementType *buf, jint mode)) \
3751   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \
3752   EntryProbe; \
3753   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3754   int len = a->length(); \
3755   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \
3756     if ((mode == 0) || (mode == JNI_COMMIT)) { \
3757       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \
3758     } \
3759     if ((mode == 0) || (mode == JNI_ABORT)) { \
3760       FreeHeap(buf); \
3761     } \
3762   } \
3763   ReturnProbe; \
3764 JNI_END
3765 
3766 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool
3767                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3768                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())
3769 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte
3770                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),
3771                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())
3772 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short
3773                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3774                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())
3775 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char
3776                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),
3777                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())
3778 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int
3779                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),
3780                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())
3781 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long
3782                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),
3783                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())
3784 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float
3785                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),
3786                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())
3787 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double
3788                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),
3789                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())
3790 #endif /* USDT2 */
3791 
3792 #ifndef USDT2
3793 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3794   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\
3795 \
3796 JNI_ENTRY(void, \
3797 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3798              jsize len, ElementType *buf)) \
3799   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3800   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\
3801   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3802   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3803   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \
3804     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3805   } else { \
3806     if (len > 0) { \
3807       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3808       memcpy((u_char*) buf, \
3809              (u_char*) src->Tag##_at_addr(start), \
3810              len << sc);                          \
3811     } \
3812   } \
3813 JNI_END
3814 
3815 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)
3816 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)
3817 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)
3818 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)
3819 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)
3820 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)
3821 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)
3822 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)
3823 
3824 #else /* USDT2 */
3825 
3826 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3827                                     , EntryProbe, ReturnProbe); \
3828   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \
3829                            , ReturnProbe); \
3830 \
3831 JNI_ENTRY(void, \
3832 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3833              jsize len, ElementType *buf)) \
3834   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \
3835   EntryProbe; \
3836   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \
3837   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3838   if (start < 0 || len < 0 || (start > src->length() - len)) { \
3839     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3840   } else { \
3841     if (len > 0) { \
3842       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \
3843       memcpy((u_char*) buf, \
3844              (u_char*) src->Tag##_at_addr(start), \
3845              len << sc);                          \
3846     } \
3847   } \
3848 JNI_END
3849 
3850 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool
3851                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3852                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());
3853 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte
3854                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3855                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());
3856 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short
3857                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3858                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());
3859 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char
3860                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),
3861                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());
3862 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int
3863                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),
3864                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());
3865 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long
3866                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3867                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());
3868 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float
3869                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3870                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());
3871 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double
3872                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3873                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());
3874 #endif /* USDT2 */
3875 
3876 #ifndef USDT2
3877 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \
3878   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\
3879 \
3880 JNI_ENTRY(void, \
3881 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3882              jsize len, const ElementType *buf)) \
3883   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3884   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\
3885   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3886   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3887   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \
3888     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3889   } else { \
3890     if (len > 0) { \
3891       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3892       memcpy((u_char*) dst->Tag##_at_addr(start), \
3893              (u_char*) buf, \
3894              len << sc);    \
3895     } \
3896   } \
3897 JNI_END
3898 
3899 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)
3900 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)
3901 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)
3902 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)
3903 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)
3904 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)
3905 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)
3906 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)
3907 
3908 #else /* USDT2 */
3909 
3910 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \
3911                                     , EntryProbe, ReturnProbe); \
3912   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \
3913                            ,ReturnProbe);           \
3914 \
3915 JNI_ENTRY(void, \
3916 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \
3917              jsize len, const ElementType *buf)) \
3918   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \
3919   EntryProbe; \
3920   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \
3921   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \
3922   if (start < 0 || len < 0 || (start > dst->length() - len)) { \
3923     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \
3924   } else { \
3925     if (len > 0) { \
3926       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \
3927       memcpy((u_char*) dst->Tag##_at_addr(start), \
3928              (u_char*) buf, \
3929              len << sc);    \
3930     } \
3931   } \
3932 JNI_END
3933 
3934 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool
3935                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),
3936                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())
3937 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte
3938                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),
3939                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())
3940 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short
3941                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3942                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())
3943 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char
3944                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),
3945                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())
3946 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int
3947                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),
3948                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())
3949 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long
3950                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),
3951                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())
3952 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float
3953                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),
3954                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())
3955 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double
3956                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),
3957                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())
3958 #endif /* USDT2 */
3959 
3960 
3961 //
3962 // Interception of natives
3963 //
3964 
3965 // The RegisterNatives call being attempted tried to register with a method that
3966 // is not native.  Ask JVM TI what prefixes have been specified.  Then check
3967 // to see if the native method is now wrapped with the prefixes.  See the
3968 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.
3969 static Method* find_prefixed_native(KlassHandle k,
3970                                       Symbol* name, Symbol* signature, TRAPS) {
3971 #if INCLUDE_JVMTI
3972   ResourceMark rm(THREAD);
3973   Method* method;
3974   int name_len = name->utf8_length();
3975   char* name_str = name->as_utf8();
3976   int prefix_count;
3977   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);
3978   for (int i = 0; i < prefix_count; i++) {
3979     char* prefix = prefixes[i];
3980     int prefix_len = (int)strlen(prefix);
3981 
3982     // try adding this prefix to the method name and see if it matches another method name
3983     int trial_len = name_len + prefix_len;
3984     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);
3985     strcpy(trial_name_str, prefix);
3986     strcat(trial_name_str, name_str);
3987     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);
3988     if (trial_name == NULL) {
3989       continue; // no such symbol, so this prefix wasn't used, try the next prefix
3990     }
3991     method = k()->lookup_method(trial_name, signature);
3992     if (method == NULL) {
3993       continue; // signature doesn't match, try the next prefix
3994     }
3995     if (method->is_native()) {
3996       method->set_is_prefixed_native();
3997       return method; // wahoo, we found a prefixed version of the method, return it
3998     }
3999     // found as non-native, so prefix is good, add it, probably just need more prefixes
4000     name_len = trial_len;
4001     name_str = trial_name_str;
4002   }
4003 #endif // INCLUDE_JVMTI
4004   return NULL; // not found
4005 }
4006 
4007 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {
4008   Method* method = k()->lookup_method(name, signature);
4009   if (method == NULL) {
4010     ResourceMark rm;
4011     stringStream st;
4012     st.print("Method %s name or signature does not match",
4013              Method::name_and_sig_as_C_string(k(), name, signature));
4014     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4015   }
4016   if (!method->is_native()) {
4017     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)
4018     method = find_prefixed_native(k, name, signature, THREAD);
4019     if (method == NULL) {
4020       ResourceMark rm;
4021       stringStream st;
4022       st.print("Method %s is not declared as native",
4023                Method::name_and_sig_as_C_string(k(), name, signature));
4024       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);
4025     }
4026   }
4027 
4028   if (entry != NULL) {
4029     method->set_native_function(entry,
4030       Method::native_bind_event_is_interesting);
4031   } else {
4032     method->clear_native_function();
4033   }
4034   if (PrintJNIResolving) {
4035     ResourceMark rm(THREAD);
4036     tty->print_cr("[Registering JNI native method %s.%s]",
4037       method->method_holder()->external_name(),
4038       method->name()->as_C_string());
4039   }
4040   return true;
4041 }
4042 
4043 #ifndef USDT2
4044 DT_RETURN_MARK_DECL(RegisterNatives, jint);
4045 #else /* USDT2 */
4046 DT_RETURN_MARK_DECL(RegisterNatives, jint
4047                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));
4048 #endif /* USDT2 */
4049 
4050 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,
4051                                     const JNINativeMethod *methods,
4052                                     jint nMethods))
4053   JNIWrapper("RegisterNatives");
4054 #ifndef USDT2
4055   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);
4056 #else /* USDT2 */
4057   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(
4058                                     env, clazz, (void *) methods, nMethods);
4059 #endif /* USDT2 */
4060   jint ret = 0;
4061   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);
4062 
4063   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));
4064 
4065   for (int index = 0; index < nMethods; index++) {
4066     const char* meth_name = methods[index].name;
4067     const char* meth_sig = methods[index].signature;
4068     int meth_name_len = (int)strlen(meth_name);
4069 
4070     // The class should have been loaded (we have an instance of the class
4071     // passed in) so the method and signature should already be in the symbol
4072     // table.  If they're not there, the method doesn't exist.
4073     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);
4074     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));
4075 
4076     if (name == NULL || signature == NULL) {
4077       ResourceMark rm;
4078       stringStream st;
4079       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);
4080       // Must return negative value on failure
4081       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);
4082     }
4083 
4084     bool res = register_native(h_k, name, signature,
4085                                (address) methods[index].fnPtr, THREAD);
4086     if (!res) {
4087       ret = -1;
4088       break;
4089     }
4090   }
4091   return ret;
4092 JNI_END
4093 
4094 
4095 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))
4096   JNIWrapper("UnregisterNatives");
4097 #ifndef USDT2
4098   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);
4099 #else /* USDT2 */
4100  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(
4101                                      env, clazz);
4102 #endif /* USDT2 */
4103   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));
4104   //%note jni_2
4105   if (k->oop_is_instance()) {
4106     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {
4107       Method* m = InstanceKlass::cast(k)->methods()->at(index);
4108       if (m->is_native()) {
4109         m->clear_native_function();
4110         m->set_signature_handler(NULL);
4111       }
4112     }
4113   }
4114 #ifndef USDT2
4115   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);
4116 #else /* USDT2 */
4117  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(
4118                                       0);
4119 #endif /* USDT2 */
4120   return 0;
4121 JNI_END
4122 
4123 //
4124 // Monitor functions
4125 //
4126 
4127 #ifndef USDT2
4128 DT_RETURN_MARK_DECL(MonitorEnter, jint);
4129 #else /* USDT2 */
4130 DT_RETURN_MARK_DECL(MonitorEnter, jint
4131                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));
4132 #endif /* USDT2 */
4133 
4134 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))
4135 #ifndef USDT2
4136   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);
4137 #else /* USDT2 */
4138  HOTSPOT_JNI_MONITORENTER_ENTRY(
4139                                 env, jobj);
4140 #endif /* USDT2 */
4141   jint ret = JNI_ERR;
4142   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);
4143 
4144   // If the object is null, we can't do anything with it
4145   if (jobj == NULL) {
4146     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4147   }
4148 
4149   Handle obj(thread, JNIHandles::resolve_non_null(jobj));
4150   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));
4151   ret = JNI_OK;
4152   return ret;
4153 JNI_END
4154 
4155 #ifndef USDT2
4156 DT_RETURN_MARK_DECL(MonitorExit, jint);
4157 #else /* USDT2 */
4158 DT_RETURN_MARK_DECL(MonitorExit, jint
4159                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));
4160 #endif /* USDT2 */
4161 
4162 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))
4163 #ifndef USDT2
4164   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);
4165 #else /* USDT2 */
4166  HOTSPOT_JNI_MONITOREXIT_ENTRY(
4167                                env, jobj);
4168 #endif /* USDT2 */
4169   jint ret = JNI_ERR;
4170   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);
4171 
4172   // Don't do anything with a null object
4173   if (jobj == NULL) {
4174     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);
4175   }
4176 
4177   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));
4178   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));
4179 
4180   ret = JNI_OK;
4181   return ret;
4182 JNI_END
4183 
4184 //
4185 // Extensions
4186 //
4187 
4188 #ifndef USDT2
4189 DT_VOID_RETURN_MARK_DECL(GetStringRegion);
4190 #else /* USDT2 */
4191 DT_VOID_RETURN_MARK_DECL(GetStringRegion
4192                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());
4193 #endif /* USDT2 */
4194 
4195 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))
4196   JNIWrapper("GetStringRegion");
4197 #ifndef USDT2
4198   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);
4199 #else /* USDT2 */
4200  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(
4201                                    env, string, start, len, buf);
4202 #endif /* USDT2 */
4203   DT_VOID_RETURN_MARK(GetStringRegion);
4204   oop s = JNIHandles::resolve_non_null(string);
4205   int s_len = java_lang_String::length(s);
4206   if (start < 0 || len < 0 || start > s_len - len) {
4207     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4208   } else {
4209     if (len > 0) {
4210       int s_offset = java_lang_String::offset(s);
4211       typeArrayOop s_value = java_lang_String::value(s);
4212       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);
4213     }
4214   }
4215 JNI_END
4216 
4217 #ifndef USDT2
4218 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);
4219 #else /* USDT2 */
4220 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion
4221                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());
4222 #endif /* USDT2 */
4223 
4224 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))
4225   JNIWrapper("GetStringUTFRegion");
4226 #ifndef USDT2
4227   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);
4228 #else /* USDT2 */
4229  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(
4230                                       env, string, start, len, buf);
4231 #endif /* USDT2 */
4232   DT_VOID_RETURN_MARK(GetStringUTFRegion);
4233   oop s = JNIHandles::resolve_non_null(string);
4234   int s_len = java_lang_String::length(s);
4235   if (start < 0 || len < 0 || start > s_len - len) {
4236     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());
4237   } else {
4238     //%note jni_7
4239     if (len > 0) {
4240       ResourceMark rm(THREAD);
4241       char *utf_region = java_lang_String::as_utf8_string(s, start, len);
4242       int utf_len = (int)strlen(utf_region);
4243       memcpy(buf, utf_region, utf_len);
4244       buf[utf_len] = 0;
4245     } else {
4246       // JDK null-terminates the buffer even in len is zero
4247       if (buf != NULL) {
4248         buf[0] = 0;
4249       }
4250     }
4251   }
4252 JNI_END
4253 


















4254 
4255 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))
4256   JNIWrapper("GetPrimitiveArrayCritical");
4257 #ifndef USDT2
4258   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);
4259 #else /* USDT2 */
4260  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(
4261                                              env, array, (uintptr_t *) isCopy);
4262 #endif /* USDT2 */
4263   GC_locker::lock_critical(thread);
4264   if (isCopy != NULL) {
4265     *isCopy = JNI_FALSE;
4266   }
4267   oop a = JNIHandles::resolve_non_null(array);
4268   assert(a->is_array(), "just checking");
4269   BasicType type;
4270   if (a->is_objArray()) {
4271     type = T_OBJECT;
4272   } else {
4273     type = TypeArrayKlass::cast(a->klass())->element_type();
4274   }
4275   void* ret = arrayOop(a)->base(type);
4276 #ifndef USDT2
4277   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);
4278 #else /* USDT2 */
4279  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(
4280                                               ret);
4281 #endif /* USDT2 */
4282   return ret;
4283 JNI_END
4284 
4285 
4286 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))
4287   JNIWrapper("ReleasePrimitiveArrayCritical");
4288 #ifndef USDT2
4289   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);
4290 #else /* USDT2 */
4291   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(
4292                                                   env, array, carray, mode);
4293 #endif /* USDT2 */
4294   // The array, carray and mode arguments are ignored
4295   GC_locker::unlock_critical(thread);
4296 #ifndef USDT2
4297   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);
4298 #else /* USDT2 */
4299 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(
4300 );
4301 #endif /* USDT2 */
4302 JNI_END
4303 
4304 
4305 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))
4306   JNIWrapper("GetStringCritical");
4307 #ifndef USDT2
4308   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);
4309 #else /* USDT2 */
4310   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(
4311                                       env, string, (uintptr_t *) isCopy);
4312 #endif /* USDT2 */
4313   GC_locker::lock_critical(thread);
4314   if (isCopy != NULL) {
4315     *isCopy = JNI_FALSE;
4316   }
4317   oop s = JNIHandles::resolve_non_null(string);
4318   int s_len = java_lang_String::length(s);
4319   typeArrayOop s_value = java_lang_String::value(s);
4320   int s_offset = java_lang_String::offset(s);
4321   const jchar* ret;
4322   if (s_len > 0) {
4323     ret = s_value->char_at_addr(s_offset);
4324   } else {
4325     ret = (jchar*) s_value->base(T_CHAR);
4326   }
4327 #ifndef USDT2
4328   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);
4329 #else /* USDT2 */
4330  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(
4331                                       (uint16_t *) ret);
4332 #endif /* USDT2 */
4333   return ret;
4334 JNI_END
4335 
4336 
4337 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))
4338   JNIWrapper("ReleaseStringCritical");
4339 #ifndef USDT2
4340   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);
4341 #else /* USDT2 */
4342   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(
4343                                           env, str, (uint16_t *) chars);
4344 #endif /* USDT2 */
4345   // The str and chars arguments are ignored
4346   GC_locker::unlock_critical(thread);
4347 #ifndef USDT2
4348   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);
4349 #else /* USDT2 */
4350 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(
4351 );
4352 #endif /* USDT2 */
4353 JNI_END
4354 
4355 
4356 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))
4357   JNIWrapper("jni_NewWeakGlobalRef");
4358 #ifndef USDT2
4359   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);
4360 #else /* USDT2 */
4361  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(
4362                                     env, ref);
4363 #endif /* USDT2 */
4364   Handle ref_handle(thread, JNIHandles::resolve(ref));
4365   jweak ret = JNIHandles::make_weak_global(ref_handle);
4366 #ifndef USDT2
4367   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);
4368 #else /* USDT2 */
4369  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(
4370                                      ret);
4371 #endif /* USDT2 */
4372   return ret;
4373 JNI_END
4374 
4375 // Must be JNI_ENTRY (with HandleMark)
4376 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))
4377   JNIWrapper("jni_DeleteWeakGlobalRef");
4378 #ifndef USDT2
4379   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);
4380 #else /* USDT2 */
4381   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(
4382                                         env, ref);
4383 #endif /* USDT2 */
4384   JNIHandles::destroy_weak_global(ref);
4385 #ifndef USDT2
4386   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);
4387 #else /* USDT2 */
4388   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(
4389                                          );
4390 #endif /* USDT2 */
4391 JNI_END
4392 
4393 
4394 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))
4395   JNIWrapper("jni_ExceptionCheck");
4396 #ifndef USDT2
4397   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);
4398 #else /* USDT2 */
4399  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(
4400                                   env);
4401 #endif /* USDT2 */
4402   jni_check_async_exceptions(thread);
4403   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;
4404 #ifndef USDT2
4405   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);
4406 #else /* USDT2 */
4407  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(
4408                                    ret);
4409 #endif /* USDT2 */
4410   return ret;
4411 JNI_END
4412 
4413 
4414 // Initialization state for three routines below relating to
4415 // java.nio.DirectBuffers
4416 static          jint directBufferSupportInitializeStarted = 0;
4417 static volatile jint directBufferSupportInitializeEnded   = 0;
4418 static volatile jint directBufferSupportInitializeFailed  = 0;
4419 static jclass    bufferClass                 = NULL;
4420 static jclass    directBufferClass           = NULL;
4421 static jclass    directByteBufferClass       = NULL;
4422 static jmethodID directByteBufferConstructor = NULL;
4423 static jfieldID  directBufferAddressField    = NULL;
4424 static jfieldID  bufferCapacityField         = NULL;
4425 
4426 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {
4427   Handle loader;            // null (bootstrap) loader
4428   Handle protection_domain; // null protection domain
4429 
4430   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);
4431   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);
4432 
4433   if (TraceClassResolution && result != NULL) {
4434     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));
4435   }
4436   return result;
4437 }
4438 
4439 // These lookups are done with the NULL (bootstrap) ClassLoader to
4440 // circumvent any security checks that would be done by jni_FindClass.
4441 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))
4442 {
4443   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }
4444   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }
4445   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }
4446   return true;
4447 }
4448 JNI_END
4449 
4450 
4451 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {
4452   if (directBufferSupportInitializeFailed) {
4453     return false;
4454   }
4455 
4456   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {
4457     if (!lookupDirectBufferClasses(env)) {
4458       directBufferSupportInitializeFailed = 1;
4459       return false;
4460     }
4461 
4462     // Make global references for these
4463     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);
4464     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);
4465     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);
4466 
4467     // Get needed field and method IDs
4468     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");
4469     if (env->ExceptionCheck()) {
4470       env->ExceptionClear();
4471       directBufferSupportInitializeFailed = 1;
4472       return false;
4473     }
4474     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");
4475     if (env->ExceptionCheck()) {
4476       env->ExceptionClear();
4477       directBufferSupportInitializeFailed = 1;
4478       return false;
4479     }
4480     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");
4481     if (env->ExceptionCheck()) {
4482       env->ExceptionClear();
4483       directBufferSupportInitializeFailed = 1;
4484       return false;
4485     }
4486 
4487     if ((directByteBufferConstructor == NULL) ||
4488         (directBufferAddressField    == NULL) ||
4489         (bufferCapacityField         == NULL)) {
4490       directBufferSupportInitializeFailed = 1;
4491       return false;
4492     }
4493 
4494     directBufferSupportInitializeEnded = 1;
4495   } else {
4496     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {
4497       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls
4498       // os::sleep which requires the VM state transition. On other platforms, it
4499       // is not necessary. The following call to change the VM state is purposely
4500       // put inside the loop to avoid potential deadlock when multiple threads
4501       // try to call this method. See 6791815 for more details.
4502       ThreadInVMfromNative tivn(thread);
4503       os::yield_all();
4504     }
4505   }
4506 
4507   return !directBufferSupportInitializeFailed;
4508 }
4509 
4510 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)
4511 {
4512   // thread_from_jni_environment() will block if VM is gone.
4513   JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4514 
4515   JNIWrapper("jni_NewDirectByteBuffer");
4516 #ifndef USDT2
4517   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);
4518 #else /* USDT2 */
4519  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(
4520                                        env, address, capacity);
4521 #endif /* USDT2 */
4522 
4523   if (!directBufferSupportInitializeEnded) {
4524     if (!initializeDirectBufferSupport(env, thread)) {
4525 #ifndef USDT2
4526       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);
4527 #else /* USDT2 */
4528       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4529                                              NULL);
4530 #endif /* USDT2 */
4531       return NULL;
4532     }
4533   }
4534 
4535   // Being paranoid about accidental sign extension on address
4536   jlong addr = (jlong) ((uintptr_t) address);
4537   // NOTE that package-private DirectByteBuffer constructor currently
4538   // takes int capacity
4539   jint  cap  = (jint)  capacity;
4540   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);
4541 #ifndef USDT2
4542   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);
4543 #else /* USDT2 */
4544   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(
4545                                          ret);
4546 #endif /* USDT2 */
4547   return ret;
4548 }
4549 
4550 #ifndef USDT2
4551 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);
4552 #else /* USDT2 */
4553 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*
4554                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));
4555 #endif /* USDT2 */
4556 
4557 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)
4558 {
4559   // thread_from_jni_environment() will block if VM is gone.
4560   JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4561 
4562   JNIWrapper("jni_GetDirectBufferAddress");
4563 #ifndef USDT2
4564   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);
4565 #else /* USDT2 */
4566   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(
4567                                            env, buf);
4568 #endif /* USDT2 */
4569   void* ret = NULL;
4570   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);
4571 
4572   if (!directBufferSupportInitializeEnded) {
4573     if (!initializeDirectBufferSupport(env, thread)) {
4574       return 0;
4575     }
4576   }
4577 
4578   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {
4579     return 0;
4580   }
4581 
4582   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);
4583   return ret;
4584 }
4585 
4586 #ifndef USDT2
4587 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);
4588 #else /* USDT2 */
4589 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong
4590                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));
4591 #endif /* USDT2 */
4592 
4593 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)
4594 {
4595   // thread_from_jni_environment() will block if VM is gone.
4596   JavaThread* thread = JavaThread::thread_from_jni_environment(env);
4597 
4598   JNIWrapper("jni_GetDirectBufferCapacity");
4599 #ifndef USDT2
4600   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);
4601 #else /* USDT2 */
4602   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(
4603                                             env, buf);
4604 #endif /* USDT2 */
4605   jlong ret = -1;
4606   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);
4607 
4608   if (!directBufferSupportInitializeEnded) {
4609     if (!initializeDirectBufferSupport(env, thread)) {
4610       ret = 0;
4611       return ret;
4612     }
4613   }
4614 
4615   if (buf == NULL) {
4616     return -1;
4617   }
4618 
4619   if (!env->IsInstanceOf(buf, directBufferClass)) {
4620     return -1;
4621   }
4622 
4623   // NOTE that capacity is currently an int in the implementation
4624   ret = env->GetIntField(buf, bufferCapacityField);
4625   return ret;
4626 }
4627 
4628 
4629 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))
4630   JNIWrapper("GetVersion");
4631 #ifndef USDT2
4632   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);
4633 #else /* USDT2 */
4634   HOTSPOT_JNI_GETVERSION_ENTRY(
4635                                env);
4636 #endif /* USDT2 */
4637 #ifndef USDT2
4638   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);
4639 #else /* USDT2 */
4640   HOTSPOT_JNI_GETVERSION_RETURN(
4641                                 CurrentVersion);
4642 #endif /* USDT2 */
4643   return CurrentVersion;
4644 JNI_END
4645 
4646 extern struct JavaVM_ main_vm;
4647 
4648 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))
4649   JNIWrapper("jni_GetJavaVM");
4650 #ifndef USDT2
4651   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);
4652 #else /* USDT2 */
4653   HOTSPOT_JNI_GETJAVAVM_ENTRY(
4654                               env, (void **) vm);
4655 #endif /* USDT2 */
4656   *vm  = (JavaVM *)(&main_vm);
4657 #ifndef USDT2
4658   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);
4659 #else /* USDT2 */
4660   HOTSPOT_JNI_GETJAVAVM_RETURN(
4661                                JNI_OK);
4662 #endif /* USDT2 */
4663   return JNI_OK;
4664 JNI_END
4665 
4666 // Structure containing all jni functions
4667 struct JNINativeInterface_ jni_NativeInterface = {
4668     NULL,
4669     NULL,
4670     NULL,
4671 
4672     NULL,
4673 
4674     jni_GetVersion,
4675 
4676     jni_DefineClass,
4677     jni_FindClass,
4678 
4679     jni_FromReflectedMethod,
4680     jni_FromReflectedField,
4681 
4682     jni_ToReflectedMethod,
4683 
4684     jni_GetSuperclass,
4685     jni_IsAssignableFrom,
4686 
4687     jni_ToReflectedField,
4688 
4689     jni_Throw,
4690     jni_ThrowNew,
4691     jni_ExceptionOccurred,
4692     jni_ExceptionDescribe,
4693     jni_ExceptionClear,
4694     jni_FatalError,
4695 
4696     jni_PushLocalFrame,
4697     jni_PopLocalFrame,
4698 
4699     jni_NewGlobalRef,
4700     jni_DeleteGlobalRef,
4701     jni_DeleteLocalRef,
4702     jni_IsSameObject,
4703 
4704     jni_NewLocalRef,
4705     jni_EnsureLocalCapacity,
4706 
4707     jni_AllocObject,
4708     jni_NewObject,
4709     jni_NewObjectV,
4710     jni_NewObjectA,
4711 
4712     jni_GetObjectClass,
4713     jni_IsInstanceOf,
4714 
4715     jni_GetMethodID,
4716 
4717     jni_CallObjectMethod,
4718     jni_CallObjectMethodV,
4719     jni_CallObjectMethodA,
4720     jni_CallBooleanMethod,
4721     jni_CallBooleanMethodV,
4722     jni_CallBooleanMethodA,
4723     jni_CallByteMethod,
4724     jni_CallByteMethodV,
4725     jni_CallByteMethodA,
4726     jni_CallCharMethod,
4727     jni_CallCharMethodV,
4728     jni_CallCharMethodA,
4729     jni_CallShortMethod,
4730     jni_CallShortMethodV,
4731     jni_CallShortMethodA,
4732     jni_CallIntMethod,
4733     jni_CallIntMethodV,
4734     jni_CallIntMethodA,
4735     jni_CallLongMethod,
4736     jni_CallLongMethodV,
4737     jni_CallLongMethodA,
4738     jni_CallFloatMethod,
4739     jni_CallFloatMethodV,
4740     jni_CallFloatMethodA,
4741     jni_CallDoubleMethod,
4742     jni_CallDoubleMethodV,
4743     jni_CallDoubleMethodA,
4744     jni_CallVoidMethod,
4745     jni_CallVoidMethodV,
4746     jni_CallVoidMethodA,
4747 
4748     jni_CallNonvirtualObjectMethod,
4749     jni_CallNonvirtualObjectMethodV,
4750     jni_CallNonvirtualObjectMethodA,
4751     jni_CallNonvirtualBooleanMethod,
4752     jni_CallNonvirtualBooleanMethodV,
4753     jni_CallNonvirtualBooleanMethodA,
4754     jni_CallNonvirtualByteMethod,
4755     jni_CallNonvirtualByteMethodV,
4756     jni_CallNonvirtualByteMethodA,
4757     jni_CallNonvirtualCharMethod,
4758     jni_CallNonvirtualCharMethodV,
4759     jni_CallNonvirtualCharMethodA,
4760     jni_CallNonvirtualShortMethod,
4761     jni_CallNonvirtualShortMethodV,
4762     jni_CallNonvirtualShortMethodA,
4763     jni_CallNonvirtualIntMethod,
4764     jni_CallNonvirtualIntMethodV,
4765     jni_CallNonvirtualIntMethodA,
4766     jni_CallNonvirtualLongMethod,
4767     jni_CallNonvirtualLongMethodV,
4768     jni_CallNonvirtualLongMethodA,
4769     jni_CallNonvirtualFloatMethod,
4770     jni_CallNonvirtualFloatMethodV,
4771     jni_CallNonvirtualFloatMethodA,
4772     jni_CallNonvirtualDoubleMethod,
4773     jni_CallNonvirtualDoubleMethodV,
4774     jni_CallNonvirtualDoubleMethodA,
4775     jni_CallNonvirtualVoidMethod,
4776     jni_CallNonvirtualVoidMethodV,
4777     jni_CallNonvirtualVoidMethodA,
4778 
4779     jni_GetFieldID,
4780 
4781     jni_GetObjectField,
4782     jni_GetBooleanField,
4783     jni_GetByteField,
4784     jni_GetCharField,
4785     jni_GetShortField,
4786     jni_GetIntField,
4787     jni_GetLongField,
4788     jni_GetFloatField,
4789     jni_GetDoubleField,
4790 
4791     jni_SetObjectField,
4792     jni_SetBooleanField,
4793     jni_SetByteField,
4794     jni_SetCharField,
4795     jni_SetShortField,
4796     jni_SetIntField,
4797     jni_SetLongField,
4798     jni_SetFloatField,
4799     jni_SetDoubleField,
4800 
4801     jni_GetStaticMethodID,
4802 
4803     jni_CallStaticObjectMethod,
4804     jni_CallStaticObjectMethodV,
4805     jni_CallStaticObjectMethodA,
4806     jni_CallStaticBooleanMethod,
4807     jni_CallStaticBooleanMethodV,
4808     jni_CallStaticBooleanMethodA,
4809     jni_CallStaticByteMethod,
4810     jni_CallStaticByteMethodV,
4811     jni_CallStaticByteMethodA,
4812     jni_CallStaticCharMethod,
4813     jni_CallStaticCharMethodV,
4814     jni_CallStaticCharMethodA,
4815     jni_CallStaticShortMethod,
4816     jni_CallStaticShortMethodV,
4817     jni_CallStaticShortMethodA,
4818     jni_CallStaticIntMethod,
4819     jni_CallStaticIntMethodV,
4820     jni_CallStaticIntMethodA,
4821     jni_CallStaticLongMethod,
4822     jni_CallStaticLongMethodV,
4823     jni_CallStaticLongMethodA,
4824     jni_CallStaticFloatMethod,
4825     jni_CallStaticFloatMethodV,
4826     jni_CallStaticFloatMethodA,
4827     jni_CallStaticDoubleMethod,
4828     jni_CallStaticDoubleMethodV,
4829     jni_CallStaticDoubleMethodA,
4830     jni_CallStaticVoidMethod,
4831     jni_CallStaticVoidMethodV,
4832     jni_CallStaticVoidMethodA,
4833 
4834     jni_GetStaticFieldID,
4835 
4836     jni_GetStaticObjectField,
4837     jni_GetStaticBooleanField,
4838     jni_GetStaticByteField,
4839     jni_GetStaticCharField,
4840     jni_GetStaticShortField,
4841     jni_GetStaticIntField,
4842     jni_GetStaticLongField,
4843     jni_GetStaticFloatField,
4844     jni_GetStaticDoubleField,
4845 
4846     jni_SetStaticObjectField,
4847     jni_SetStaticBooleanField,
4848     jni_SetStaticByteField,
4849     jni_SetStaticCharField,
4850     jni_SetStaticShortField,
4851     jni_SetStaticIntField,
4852     jni_SetStaticLongField,
4853     jni_SetStaticFloatField,
4854     jni_SetStaticDoubleField,
4855 
4856     jni_NewString,
4857     jni_GetStringLength,
4858     jni_GetStringChars,
4859     jni_ReleaseStringChars,
4860 
4861     jni_NewStringUTF,
4862     jni_GetStringUTFLength,
4863     jni_GetStringUTFChars,
4864     jni_ReleaseStringUTFChars,
4865 
4866     jni_GetArrayLength,
4867 
4868     jni_NewObjectArray,
4869     jni_GetObjectArrayElement,
4870     jni_SetObjectArrayElement,
4871 
4872     jni_NewBooleanArray,
4873     jni_NewByteArray,
4874     jni_NewCharArray,
4875     jni_NewShortArray,
4876     jni_NewIntArray,
4877     jni_NewLongArray,
4878     jni_NewFloatArray,
4879     jni_NewDoubleArray,
4880 
4881     jni_GetBooleanArrayElements,
4882     jni_GetByteArrayElements,
4883     jni_GetCharArrayElements,
4884     jni_GetShortArrayElements,
4885     jni_GetIntArrayElements,
4886     jni_GetLongArrayElements,
4887     jni_GetFloatArrayElements,
4888     jni_GetDoubleArrayElements,
4889 
4890     jni_ReleaseBooleanArrayElements,
4891     jni_ReleaseByteArrayElements,
4892     jni_ReleaseCharArrayElements,
4893     jni_ReleaseShortArrayElements,
4894     jni_ReleaseIntArrayElements,
4895     jni_ReleaseLongArrayElements,
4896     jni_ReleaseFloatArrayElements,
4897     jni_ReleaseDoubleArrayElements,
4898 
4899     jni_GetBooleanArrayRegion,
4900     jni_GetByteArrayRegion,
4901     jni_GetCharArrayRegion,
4902     jni_GetShortArrayRegion,
4903     jni_GetIntArrayRegion,
4904     jni_GetLongArrayRegion,
4905     jni_GetFloatArrayRegion,
4906     jni_GetDoubleArrayRegion,
4907 
4908     jni_SetBooleanArrayRegion,
4909     jni_SetByteArrayRegion,
4910     jni_SetCharArrayRegion,
4911     jni_SetShortArrayRegion,
4912     jni_SetIntArrayRegion,
4913     jni_SetLongArrayRegion,
4914     jni_SetFloatArrayRegion,
4915     jni_SetDoubleArrayRegion,
4916 
4917     jni_RegisterNatives,
4918     jni_UnregisterNatives,
4919 
4920     jni_MonitorEnter,
4921     jni_MonitorExit,
4922 
4923     jni_GetJavaVM,
4924 
4925     jni_GetStringRegion,
4926     jni_GetStringUTFRegion,
4927 
4928     jni_GetPrimitiveArrayCritical,
4929     jni_ReleasePrimitiveArrayCritical,
4930 
4931     jni_GetStringCritical,
4932     jni_ReleaseStringCritical,
4933 
4934     jni_NewWeakGlobalRef,
4935     jni_DeleteWeakGlobalRef,
4936 
4937     jni_ExceptionCheck,
4938 
4939     jni_NewDirectByteBuffer,
4940     jni_GetDirectBufferAddress,
4941     jni_GetDirectBufferCapacity,
4942 
4943     // New 1_6 features
4944 
4945     jni_GetObjectRefType
4946 };
4947 
4948 
4949 // For jvmti use to modify jni function table.
4950 // Java threads in native contiues to run until it is transitioned
4951 // to VM at safepoint. Before the transition or before it is blocked
4952 // for safepoint it may access jni function table. VM could crash if
4953 // any java thread access the jni function table in the middle of memcpy.
4954 // To avoid this each function pointers are copied automically.
4955 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {
4956   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
4957   intptr_t *a = (intptr_t *) jni_functions();
4958   intptr_t *b = (intptr_t *) new_jni_NativeInterface;
4959   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {
4960     Atomic::store_ptr(*b++, a++);
4961   }
4962 }
4963 
4964 void quicken_jni_functions() {
4965   // Replace Get<Primitive>Field with fast versions
4966   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()
4967       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls
4968 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)
4969       // windows x86 currently needs SEH wrapper and the gain of the fast
4970       // versions currently isn't certain for server vm on uniprocessor.
4971       && os::is_MP()
4972 #endif
4973   ) {
4974     address func;
4975     func = JNI_FastGetField::generate_fast_get_boolean_field();
4976     if (func != (address)-1) {
4977       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;
4978     }
4979     func = JNI_FastGetField::generate_fast_get_byte_field();
4980     if (func != (address)-1) {
4981       jni_NativeInterface.GetByteField = (GetByteField_t)func;
4982     }
4983     func = JNI_FastGetField::generate_fast_get_char_field();
4984     if (func != (address)-1) {
4985       jni_NativeInterface.GetCharField = (GetCharField_t)func;
4986     }
4987     func = JNI_FastGetField::generate_fast_get_short_field();
4988     if (func != (address)-1) {
4989       jni_NativeInterface.GetShortField = (GetShortField_t)func;
4990     }
4991     func = JNI_FastGetField::generate_fast_get_int_field();
4992     if (func != (address)-1) {
4993       jni_NativeInterface.GetIntField = (GetIntField_t)func;
4994     }
4995     func = JNI_FastGetField::generate_fast_get_long_field();
4996     if (func != (address)-1) {
4997       jni_NativeInterface.GetLongField = (GetLongField_t)func;
4998     }
4999     func = JNI_FastGetField::generate_fast_get_float_field();
5000     if (func != (address)-1) {
5001       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;
5002     }
5003     func = JNI_FastGetField::generate_fast_get_double_field();
5004     if (func != (address)-1) {
5005       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;
5006     }
5007   }
5008 }
5009 
5010 // Returns the function structure
5011 struct JNINativeInterface_* jni_functions() {
5012 #if INCLUDE_JNI_CHECK
5013   if (CheckJNICalls) return jni_functions_check();
5014 #endif // INCLUDE_JNI_CHECK
5015   return &jni_NativeInterface;
5016 }
5017 
5018 // Returns the function structure
5019 struct JNINativeInterface_* jni_functions_nocheck() {
5020   return &jni_NativeInterface;
5021 }
5022 
5023 static void post_thread_start_event(const JavaThread* jt) {
5024   assert(jt != NULL, "invariant");
5025   EventThreadStart event;
5026   if (event.should_commit()) {
5027     event.set_thread(JFR_THREAD_ID(jt));
5028     event.commit();
5029   }
5030 }
5031 
5032 // Invocation API
5033 
5034 
5035 // Forward declaration
5036 extern const struct JNIInvokeInterface_ jni_InvokeInterface;
5037 
5038 // Global invocation API vars
5039 volatile jint vm_created = 0;
5040 // Indicate whether it is safe to recreate VM
5041 volatile jint safe_to_recreate_vm = 1;
5042 struct JavaVM_ main_vm = {&jni_InvokeInterface};
5043 
5044 
5045 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */
5046 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };
5047 
5048 #ifndef USDT2
5049 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);
5050 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);
5051 #else /* USDT2 */
5052 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint
5053                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));
5054 #endif /* USDT2 */
5055 
5056 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {
5057 #ifndef USDT2
5058   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);
5059 #else /* USDT2 */
5060   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(
5061                                              args_);
5062 #endif /* USDT2 */
5063   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;
5064   jint ret = JNI_ERR;
5065   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);
5066 
5067   if (Threads::is_supported_jni_version(args->version)) {
5068     ret = JNI_OK;
5069   }
5070   // 1.1 style no longer supported in hotspot.
5071   // According the JNI spec, we should update args->version on return.
5072   // We also use the structure to communicate with launcher about default
5073   // stack size.
5074   if (args->version == JNI_VERSION_1_1) {
5075     args->version = JNI_VERSION_1_2;
5076     // javaStackSize is int in arguments structure
5077     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");
5078     args->javaStackSize = (jint)(ThreadStackSize * K);
5079   }
5080   return ret;
5081 }
5082 
5083 #ifndef PRODUCT
5084 
5085 #include "gc_implementation/shared/gcTimer.hpp"
5086 #include "gc_interface/collectedHeap.hpp"
5087 #if INCLUDE_ALL_GCS
5088 #include "gc_implementation/g1/heapRegionRemSet.hpp"
5089 #endif
5090 #include "memory/guardedMemory.hpp"
5091 #include "utilities/quickSort.hpp"
5092 #include "utilities/ostream.hpp"
5093 #if INCLUDE_VM_STRUCTS
5094 #include "runtime/vmStructs.hpp"
5095 #endif
5096 
5097 #define run_unit_test(unit_test_function_call)              \
5098   tty->print_cr("Running test: " #unit_test_function_call); \
5099   unit_test_function_call
5100 
5101 // Forward declaration
5102 void TestOS_test();
5103 void TestReservedSpace_test();
5104 void TestReserveMemorySpecial_test();
5105 void TestVirtualSpace_test();
5106 void TestMetaspaceAux_test();
5107 void SpaceManager_test_adjust_initial_chunk_size();
5108 void TestMetachunk_test();
5109 void TestVirtualSpaceNode_test();
5110 void TestNewSize_test();
5111 void TestKlass_test();
5112 void Test_linked_list();
5113 void TestResourcehash_test();
5114 void TestChunkedList_test();
5115 #if INCLUDE_ALL_GCS
5116 void TestOldFreeSpaceCalculation_test();
5117 void TestG1BiasedArray_test();
5118 void TestBufferingOopClosure_test();
5119 void TestCodeCacheRemSet_test();
5120 void FreeRegionList_test();
5121 void ChunkManager_test_list_index();
5122 #endif
5123 
5124 void execute_internal_vm_tests() {
5125   if (ExecuteInternalVMTests) {
5126     tty->print_cr("Running internal VM tests");
5127     run_unit_test(TestOS_test());
5128     run_unit_test(TestReservedSpace_test());
5129     run_unit_test(TestReserveMemorySpecial_test());
5130     run_unit_test(TestVirtualSpace_test());
5131     run_unit_test(TestMetaspaceAux_test());
5132     run_unit_test(TestMetachunk_test());
5133     run_unit_test(TestVirtualSpaceNode_test());
5134     run_unit_test(GlobalDefinitions::test_globals());
5135     run_unit_test(GlobalDefinitions::test_proper_unit());
5136     run_unit_test(GCTimerAllTest::all());
5137     run_unit_test(arrayOopDesc::test_max_array_length());
5138     run_unit_test(CollectedHeap::test_is_in());
5139     run_unit_test(QuickSort::test_quick_sort());
5140     run_unit_test(GuardedMemory::test_guarded_memory());
5141     run_unit_test(AltHashing::test_alt_hash());
5142     run_unit_test(test_loggc_filename());
5143     run_unit_test(test_snprintf());
5144     run_unit_test(TestNewSize_test());
5145     run_unit_test(TestKlass_test());
5146     run_unit_test(TestResourcehash_test());
5147     run_unit_test(Test_linked_list());
5148     run_unit_test(TestChunkedList_test());
5149     run_unit_test(ObjectMonitor::sanity_checks());
5150 #if INCLUDE_VM_STRUCTS
5151     run_unit_test(VMStructs::test());
5152 #endif
5153 #if INCLUDE_ALL_GCS
5154     run_unit_test(TestOldFreeSpaceCalculation_test());
5155     run_unit_test(TestG1BiasedArray_test());
5156     run_unit_test(HeapRegionRemSet::test_prt());
5157     run_unit_test(SpaceManager_test_adjust_initial_chunk_size());
5158     run_unit_test(ChunkManager_test_list_index());
5159     run_unit_test(TestBufferingOopClosure_test());
5160     run_unit_test(TestCodeCacheRemSet_test());
5161     if (UseG1GC) {
5162       run_unit_test(FreeRegionList_test());
5163     }
5164 #endif
5165     tty->print_cr("All internal VM tests passed");
5166   }
5167 }
5168 
5169 #undef run_unit_test
5170 
5171 #endif
5172 
5173 #ifndef USDT2
5174 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5175 DT_RETURN_MARK_DECL(CreateJavaVM, jint);
5176 #else /* USDT2 */
5177 DT_RETURN_MARK_DECL(CreateJavaVM, jint
5178                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));
5179 #endif /* USDT2 */
5180 
5181 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {
5182 #ifndef USDT2
5183   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);
5184 #else /* USDT2 */
5185   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(
5186                                  (void **) vm, penv, args);
5187 #endif /* USDT2 */
5188 
5189   jint result = JNI_ERR;
5190   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);
5191 
5192   // We're about to use Atomic::xchg for synchronization.  Some Zero
5193   // platforms use the GCC builtin __sync_lock_test_and_set for this,
5194   // but __sync_lock_test_and_set is not guaranteed to do what we want
5195   // on all architectures.  So we check it works before relying on it.
5196 #if defined(ZERO) && defined(ASSERT)
5197   {
5198     jint a = 0xcafebabe;
5199     jint b = Atomic::xchg(0xdeadbeef, &a);
5200     void *c = &a;
5201     void *d = Atomic::xchg_ptr(&b, &c);
5202     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");
5203     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");
5204   }
5205 #endif // ZERO && ASSERT
5206 
5207   // At the moment it's only possible to have one Java VM,
5208   // since some of the runtime state is in global variables.
5209 
5210   // We cannot use our mutex locks here, since they only work on
5211   // Threads. We do an atomic compare and exchange to ensure only
5212   // one thread can call this method at a time
5213 
5214   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms
5215   // the add/dec implementations are dependent on whether we are running
5216   // on a multiprocessor, and at this stage of initialization the os::is_MP
5217   // function used to determine this will always return false. Atomic::xchg
5218   // does not have this problem.
5219   if (Atomic::xchg(1, &vm_created) == 1) {
5220     return JNI_EEXIST;   // already created, or create attempt in progress
5221   }
5222   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {
5223     return JNI_ERR;  // someone tried and failed and retry not allowed.
5224   }
5225 
5226   assert(vm_created == 1, "vm_created is true during the creation");
5227 
5228   /**
5229    * Certain errors during initialization are recoverable and do not
5230    * prevent this method from being called again at a later time
5231    * (perhaps with different arguments).  However, at a certain
5232    * point during initialization if an error occurs we cannot allow
5233    * this function to be called again (or it will crash).  In those
5234    * situations, the 'canTryAgain' flag is set to false, which atomically
5235    * sets safe_to_recreate_vm to 1, such that any new call to
5236    * JNI_CreateJavaVM will immediately fail using the above logic.
5237    */
5238   bool can_try_again = true;
5239 
5240   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);
5241   if (result == JNI_OK) {
5242     JavaThread *thread = JavaThread::current();
5243     /* thread is thread_in_vm here */
5244     *vm = (JavaVM *)(&main_vm);
5245     *(JNIEnv**)penv = thread->jni_environment();
5246 
5247     // Tracks the time application was running before GC
5248     RuntimeService::record_application_start();
5249 
5250     // Notify JVMTI
5251     if (JvmtiExport::should_post_thread_life()) {
5252        JvmtiExport::post_thread_start(thread);
5253     }
5254 
5255     post_thread_start_event(thread);
5256 
5257 #ifndef PRODUCT
5258   #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED
5259     #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()
5260   #endif
5261 
5262     // Check if we should compile all classes on bootclasspath
5263     if (CompileTheWorld) ClassLoader::compile_the_world();
5264     if (ReplayCompiles) ciReplay::replay(thread);
5265 
5266     // Some platforms (like Win*) need a wrapper around these test
5267     // functions in order to properly handle error conditions.
5268     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);
5269     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);
5270 #endif
5271 
5272     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.
5273     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5274   } else {
5275     if (can_try_again) {
5276       // reset safe_to_recreate_vm to 1 so that retrial would be possible
5277       safe_to_recreate_vm = 1;
5278     }
5279 
5280     // Creation failed. We must reset vm_created
5281     *vm = 0;
5282     *(JNIEnv**)penv = 0;
5283     // reset vm_created last to avoid race condition. Use OrderAccess to
5284     // control both compiler and architectural-based reordering.
5285     OrderAccess::release_store(&vm_created, 0);
5286   }
5287 
5288   return result;
5289 }
5290 
5291 #ifndef USDT2
5292 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \
5293   JavaVM**, jsize, jsize*);
5294 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);
5295 #endif /* !USDT2 */
5296 
5297 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {
5298   // See bug 4367188, the wrapper can sometimes cause VM crashes
5299   // JNIWrapper("GetCreatedJavaVMs");
5300 #ifndef USDT2
5301   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \
5302     vm_buf, bufLen, numVMs);
5303 #else /* USDT2 */
5304   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(
5305                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);
5306 #endif /* USDT2 */
5307   if (vm_created) {
5308     if (numVMs != NULL) *numVMs = 1;
5309     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);
5310   } else {
5311     if (numVMs != NULL) *numVMs = 0;
5312   }
5313 #ifndef USDT2
5314   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);
5315 #else /* USDT2 */
5316   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(
5317                                     JNI_OK);
5318 #endif /* USDT2 */
5319   return JNI_OK;
5320 }
5321 
5322 extern "C" {
5323 
5324 #ifndef USDT2
5325 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);
5326 #else /* USDT2 */
5327 DT_RETURN_MARK_DECL(DestroyJavaVM, jint
5328                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));
5329 #endif /* USDT2 */
5330 
5331 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {
5332 #ifndef USDT2
5333   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);
5334 #else /* USDT2 */
5335   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(
5336                                   vm);
5337 #endif /* USDT2 */
5338   jint res = JNI_ERR;
5339   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);
5340 
5341   if (!vm_created) {
5342     res = JNI_ERR;
5343     return res;
5344   }
5345 
5346   JNIWrapper("DestroyJavaVM");
5347   JNIEnv *env;
5348   JavaVMAttachArgs destroyargs;
5349   destroyargs.version = CurrentVersion;
5350   destroyargs.name = (char *)"DestroyJavaVM";
5351   destroyargs.group = NULL;
5352   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);
5353   if (res != JNI_OK) {
5354     return res;
5355   }
5356 
5357   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.
5358   JavaThread* thread = JavaThread::current();
5359   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5360   if (Threads::destroy_vm()) {
5361     // Should not change thread state, VM is gone
5362     vm_created = false;
5363     res = JNI_OK;
5364     return res;
5365   } else {
5366     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5367     res = JNI_ERR;
5368     return res;
5369   }
5370 }
5371 
5372 
5373 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {
5374   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;
5375 
5376   // Check below commented out from JDK1.2fcs as well
5377   /*
5378   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {
5379     return JNI_EVERSION;
5380   }
5381   */
5382 
5383   Thread* t = ThreadLocalStorage::get_thread_slow();
5384   if (t != NULL) {
5385     // If the thread has been attached this operation is a no-op
5386     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();
5387     return JNI_OK;
5388   }
5389 
5390   // Create a thread and mark it as attaching so it will be skipped by the
5391   // ThreadsListEnumerator - see CR 6404306
5392   JavaThread* thread = new JavaThread(true);
5393 
5394   // Set correct safepoint info. The thread is going to call into Java when
5395   // initializing the Java level thread object. Hence, the correct state must
5396   // be set in order for the Safepoint code to deal with it correctly.
5397   thread->set_thread_state(_thread_in_vm);
5398   // Must do this before initialize_thread_local_storage
5399   thread->record_stack_base_and_size();
5400 
5401   thread->initialize_thread_local_storage();
5402 
5403   if (!os::create_attached_thread(thread)) {
5404     delete thread;
5405     return JNI_ERR;
5406   }
5407   // Enable stack overflow checks
5408   thread->create_stack_guard_pages();
5409 
5410   thread->initialize_tlab();
5411 
5412   thread->cache_global_variables();
5413 
5414   // Crucial that we do not have a safepoint check for this thread, since it has
5415   // not been added to the Thread list yet.
5416   { Threads_lock->lock_without_safepoint_check();
5417     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to
5418     // avoid this thread trying to do a GC before it is added to the thread-list
5419     thread->set_active_handles(JNIHandleBlock::allocate_block());
5420     Threads::add(thread, daemon);
5421     Threads_lock->unlock();
5422   }
5423   // Create thread group and name info from attach arguments
5424   oop group = NULL;
5425   char* thread_name = NULL;
5426   if (args != NULL && Threads::is_supported_jni_version(args->version)) {
5427     group = JNIHandles::resolve(args->group);
5428     thread_name = args->name; // may be NULL
5429   }
5430   if (group == NULL) group = Universe::main_thread_group();
5431 
5432   // Create Java level thread object and attach it to this thread
5433   bool attach_failed = false;
5434   {
5435     EXCEPTION_MARK;
5436     HandleMark hm(THREAD);
5437     Handle thread_group(THREAD, group);
5438     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);
5439     if (HAS_PENDING_EXCEPTION) {
5440       CLEAR_PENDING_EXCEPTION;
5441       // cleanup outside the handle mark.
5442       attach_failed = true;
5443     }
5444   }
5445 
5446   if (attach_failed) {
5447     // Added missing cleanup
5448     thread->cleanup_failed_attach_current_thread();
5449     return JNI_ERR;
5450   }
5451 
5452   // mark the thread as no longer attaching
5453   // this uses a fence to push the change through so we don't have
5454   // to regrab the threads_lock
5455   thread->set_done_attaching_via_jni();
5456 
5457   // Set java thread status.
5458   java_lang_Thread::set_thread_status(thread->threadObj(),
5459               java_lang_Thread::RUNNABLE);
5460 
5461   // Notify the debugger
5462   if (JvmtiExport::should_post_thread_life()) {
5463     JvmtiExport::post_thread_start(thread);
5464   }
5465 
5466   post_thread_start_event(thread);
5467 
5468   *(JNIEnv**)penv = thread->jni_environment();
5469 
5470   // Now leaving the VM, so change thread_state. This is normally automatically taken care
5471   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by
5472   // using ThreadStateTransition::transition, we do a callback to the safepoint code if
5473   // needed.
5474 
5475   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);
5476 
5477   // Perform any platform dependent FPU setup
5478   os::setup_fpu();
5479 
5480   return JNI_OK;
5481 }
5482 
5483 
5484 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {
5485 #ifndef USDT2
5486   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);
5487 #else /* USDT2 */
5488   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(
5489                                         vm, penv, _args);
5490 #endif /* USDT2 */
5491   if (!vm_created) {
5492 #ifndef USDT2
5493     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);
5494 #else /* USDT2 */
5495   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5496                                          (uint32_t) JNI_ERR);
5497 #endif /* USDT2 */
5498     return JNI_ERR;
5499   }
5500 
5501   JNIWrapper("AttachCurrentThread");
5502   jint ret = attach_current_thread(vm, penv, _args, false);
5503 #ifndef USDT2
5504   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);
5505 #else /* USDT2 */
5506   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(
5507                                          ret);
5508 #endif /* USDT2 */
5509   return ret;
5510 }
5511 
5512 
5513 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {
5514 #ifndef USDT2
5515   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);
5516 #else /* USDT2 */
5517   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(
5518                                         vm);
5519 #endif /* USDT2 */
5520   VM_Exit::block_if_vm_exited();
5521 
5522   JNIWrapper("DetachCurrentThread");
5523 
5524   // If the thread has been deattacted the operations is a no-op
5525   if (ThreadLocalStorage::thread() == NULL) {
5526 #ifndef USDT2
5527     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5528 #else /* USDT2 */
5529   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5530                                          JNI_OK);
5531 #endif /* USDT2 */
5532     return JNI_OK;
5533   }
5534 
5535   JavaThread* thread = JavaThread::current();
5536   if (thread->has_last_Java_frame()) {
5537 #ifndef USDT2
5538     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);
5539 #else /* USDT2 */
5540   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5541                                          (uint32_t) JNI_ERR);
5542 #endif /* USDT2 */
5543     // Can't detach a thread that's running java, that can't work.
5544     return JNI_ERR;
5545   }
5546 
5547   // Safepoint support. Have to do call-back to safepoint code, if in the
5548   // middel of a safepoint operation
5549   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);
5550 
5551   // XXX: Note that JavaThread::exit() call below removes the guards on the
5552   // stack pages set up via enable_stack_{red,yellow}_zone() calls
5553   // above in jni_AttachCurrentThread. Unfortunately, while the setting
5554   // of the guards is visible in jni_AttachCurrentThread above,
5555   // the removal of the guards is buried below in JavaThread::exit()
5556   // here. The abstraction should be more symmetrically either exposed
5557   // or hidden (e.g. it could probably be hidden in the same
5558   // (platform-dependent) methods where we do alternate stack
5559   // maintenance work?)
5560   thread->exit(false, JavaThread::jni_detach);
5561   delete thread;
5562 
5563 #ifndef USDT2
5564   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);
5565 #else /* USDT2 */
5566   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(
5567                                          JNI_OK);
5568 #endif /* USDT2 */
5569   return JNI_OK;
5570 }
5571 
5572 #ifndef USDT2
5573 DT_RETURN_MARK_DECL(GetEnv, jint);
5574 #else /* USDT2 */
5575 DT_RETURN_MARK_DECL(GetEnv, jint
5576                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));
5577 #endif /* USDT2 */
5578 
5579 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {
5580 #ifndef USDT2
5581   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);
5582 #else /* USDT2 */
5583   HOTSPOT_JNI_GETENV_ENTRY(
5584                            vm, penv, version);
5585 #endif /* USDT2 */
5586   jint ret = JNI_ERR;
5587   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);
5588 
5589   if (!vm_created) {
5590     *penv = NULL;
5591     ret = JNI_EDETACHED;
5592     return ret;
5593   }
5594 
5595   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {
5596     return ret;
5597   }
5598 
5599 #ifndef JVMPI_VERSION_1
5600 // need these in order to be polite about older agents
5601 #define JVMPI_VERSION_1   ((jint)0x10000001)
5602 #define JVMPI_VERSION_1_1 ((jint)0x10000002)
5603 #define JVMPI_VERSION_1_2 ((jint)0x10000003)
5604 #endif // !JVMPI_VERSION_1
5605 
5606   Thread* thread = ThreadLocalStorage::thread();
5607   if (thread != NULL && thread->is_Java_thread()) {
5608     if (Threads::is_supported_jni_version_including_1_1(version)) {
5609       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();
5610       ret = JNI_OK;
5611       return ret;
5612 
5613     } else if (version == JVMPI_VERSION_1 ||
5614                version == JVMPI_VERSION_1_1 ||
5615                version == JVMPI_VERSION_1_2) {
5616       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");
5617       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5618       ret = JNI_EVERSION;
5619       return ret;
5620     } else if (JvmtiExport::is_jvmdi_version(version)) {
5621       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");
5622       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");
5623       ret = JNI_EVERSION;
5624       return ret;
5625     } else {
5626       *penv = NULL;
5627       ret = JNI_EVERSION;
5628       return ret;
5629     }
5630   } else {
5631     *penv = NULL;
5632     ret = JNI_EDETACHED;
5633     return ret;
5634   }
5635 }
5636 
5637 
5638 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {
5639 #ifndef USDT2
5640   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);
5641 #else /* USDT2 */
5642   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(
5643                                                 vm, penv, _args);
5644 #endif /* USDT2 */
5645   if (!vm_created) {
5646 #ifndef USDT2
5647     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);
5648 #else /* USDT2 */
5649   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5650                                                  (uint32_t) JNI_ERR);
5651 #endif /* USDT2 */
5652     return JNI_ERR;
5653   }
5654 
5655   JNIWrapper("AttachCurrentThreadAsDaemon");
5656   jint ret = attach_current_thread(vm, penv, _args, true);
5657 #ifndef USDT2
5658   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);
5659 #else /* USDT2 */
5660   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(
5661                                                  ret);
5662 #endif /* USDT2 */
5663   return ret;
5664 }
5665 
5666 
5667 } // End extern "C"
5668 
5669 const struct JNIInvokeInterface_ jni_InvokeInterface = {
5670     NULL,
5671     NULL,
5672     NULL,
5673 
5674     jni_DestroyJavaVM,
5675     jni_AttachCurrentThread,
5676     jni_DetachCurrentThread,
5677     jni_GetEnv,
5678     jni_AttachCurrentThreadAsDaemon
5679 };
--- EOF ---