jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@ce8f6bb717c9

8042195: Introduce umbrella header orderAccess.inline.hpp.
Reviewed-by: dholmes, kvn, stefank, twisti

     1 /*

     2  * Copyright (c) 1997, 2014, 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  */

    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 "utilities/macros.hpp"

    36 #if INCLUDE_ALL_GCS

    37 #include "gc_implementation/g1/g1SATBCardTableModRefBS.hpp"

    38 #endif // INCLUDE_ALL_GCS

    39 #include "memory/allocation.hpp"

    40 #include "memory/allocation.inline.hpp"

    41 #include "memory/gcLocker.inline.hpp"

    42 #include "memory/oopFactory.hpp"

    43 #include "memory/universe.inline.hpp"

    44 #include "oops/instanceKlass.hpp"

    45 #include "oops/instanceOop.hpp"

    46 #include "oops/markOop.hpp"

    47 #include "oops/method.hpp"

    48 #include "oops/objArrayKlass.hpp"

    49 #include "oops/objArrayOop.hpp"

    50 #include "oops/oop.inline.hpp"

    51 #include "oops/symbol.hpp"

    52 #include "oops/typeArrayKlass.hpp"

    53 #include "oops/typeArrayOop.hpp"

    54 #include "prims/jni.h"

    55 #include "prims/jniCheck.hpp"

    56 #include "prims/jniExport.hpp"

    57 #include "prims/jniFastGetField.hpp"

    58 #include "prims/jvm.h"

    59 #include "prims/jvm_misc.hpp"

    60 #include "prims/jvmtiExport.hpp"

    61 #include "prims/jvmtiThreadState.hpp"

    62 #include "runtime/compilationPolicy.hpp"

    63 #include "runtime/fieldDescriptor.hpp"

    64 #include "runtime/fprofiler.hpp"

    65 #include "runtime/handles.inline.hpp"

    66 #include "runtime/interfaceSupport.hpp"

    67 #include "runtime/java.hpp"

    68 #include "runtime/javaCalls.hpp"

    69 #include "runtime/jfieldIDWorkaround.hpp"

    70 #include "runtime/orderAccess.inline.hpp"

    71 #include "runtime/reflection.hpp"

    72 #include "runtime/sharedRuntime.hpp"

    73 #include "runtime/signature.hpp"

    74 #include "runtime/thread.inline.hpp"

    75 #include "runtime/vm_operations.hpp"

    76 #include "services/runtimeService.hpp"

    77 #include "trace/tracing.hpp"

    78 #include "utilities/defaultStream.hpp"

    79 #include "utilities/dtrace.hpp"

    80 #include "utilities/events.hpp"

    81 #include "utilities/histogram.hpp"

    82 #ifdef TARGET_OS_FAMILY_linux

    83 # include "os_linux.inline.hpp"

    84 #endif

    85 #ifdef TARGET_OS_FAMILY_solaris

    86 # include "os_solaris.inline.hpp"

    87 #endif

    88 #ifdef TARGET_OS_FAMILY_windows

    89 # include "os_windows.inline.hpp"

    90 #endif

    91 #ifdef TARGET_OS_FAMILY_bsd

    92 # include "os_bsd.inline.hpp"

    93 #endif

    95 static jint CurrentVersion = JNI_VERSION_1_8;

    98 // The DT_RETURN_MARK macros create a scoped object to fire the dtrace

    99 // '-return' probe regardless of the return path is taken out of the function.

   100 // Methods that have multiple return paths use this to avoid having to

   101 // instrument each return path.  Methods that use CHECK or THROW must use this

   102 // since those macros can cause an immedate uninstrumented return.

   103 //

   104 // In order to get the return value, a reference to the variable containing

   105 // the return value must be passed to the contructor of the object, and

   106 // the return value must be set before return (since the mark object has

   107 // a reference to it).

   108 //

   109 // Example:

   110 // DT_RETURN_MARK_DECL(SomeFunc, int);

   111 // JNI_ENTRY(int, SomeFunc, ...)

   112 //   int return_value = 0;

   113 //   DT_RETURN_MARK(SomeFunc, int, (const int&)return_value);

   114 //   foo(CHECK_0)

   115 //   return_value = 5;

   116 //   return return_value;

   117 // JNI_END

   118 #ifndef USDT2

   119 #define DT_RETURN_MARK_DECL(name, type)                                    \

   120   HS_DTRACE_PROBE_DECL1(hotspot_jni, name##__return, type);                \

   121   DTRACE_ONLY(                                                             \

   122     class DTraceReturnProbeMark_##name {                                   \

   123      public:                                                               \

   124       const type& _ret_ref;                                                \

   125       DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {}         \

   126       ~DTraceReturnProbeMark_##name() {                                    \

   127         HS_DTRACE_PROBE1(hotspot_jni, name##__return, _ret_ref);           \

   128       }                                                                    \

   129     }                                                                      \

   130   )

   131 // Void functions are simpler since there's no return value

   132 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

   133   HS_DTRACE_PROBE_DECL0(hotspot_jni, name##__return);                      \

   134   DTRACE_ONLY(                                                             \

   135     class DTraceReturnProbeMark_##name {                                   \

   136      public:                                                               \

   137       ~DTraceReturnProbeMark_##name() {                                    \

   138         HS_DTRACE_PROBE0(hotspot_jni, name##__return);                     \

   139       }                                                                    \

   140     }                                                                      \

   141   )

   143 #else /* USDT2 */

   145 #define DT_RETURN_MARK_DECL(name, type, probe)                             \

   146   DTRACE_ONLY(                                                             \

   147     class DTraceReturnProbeMark_##name {                                   \

   148      public:                                                               \

   149       const type& _ret_ref;                                                \

   150       DTraceReturnProbeMark_##name(const type& v) : _ret_ref(v) {}         \

   151       ~DTraceReturnProbeMark_##name() {                                    \

   152         probe;                                                             \

   153       }                                                                    \

   154     }                                                                      \

   155   )

   156 // Void functions are simpler since there's no return value

   157 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   158   DTRACE_ONLY(                                                             \

   159     class DTraceReturnProbeMark_##name {                                   \

   160      public:                                                               \

   161       ~DTraceReturnProbeMark_##name() {                                    \

   162         probe;                                                             \

   163       }                                                                    \

   164     }                                                                      \

   165   )

   166 #endif /* USDT2 */

   168 // Place these macros in the function to mark the return.  Non-void

   169 // functions need the type and address of the return value.

   170 #define DT_RETURN_MARK(name, type, ref) \

   171   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark(ref) )

   172 #define DT_VOID_RETURN_MARK(name) \

   173   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

   176 // Use these to select distinct code for floating-point vs. non-floating point

   177 // situations.  Used from within common macros where we need slightly

   178 // different behavior for Float/Double

   179 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   180 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   181 #define FP_SELECT_Char(intcode, fpcode)    intcode

   182 #define FP_SELECT_Short(intcode, fpcode)   intcode

   183 #define FP_SELECT_Object(intcode, fpcode)  intcode

   184 #define FP_SELECT_Int(intcode, fpcode)     intcode

   185 #define FP_SELECT_Long(intcode, fpcode)    intcode

   186 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   187 #define FP_SELECT_Double(intcode, fpcode)  fpcode

   188 #define FP_SELECT(TypeName, intcode, fpcode) \

   189   FP_SELECT_##TypeName(intcode, fpcode)

   191 #define COMMA ,

   193 // Choose DT_RETURN_MARK macros  based on the type: float/double -> void

   194 // (dtrace doesn't do FP yet)

   195 #ifndef USDT2

   196 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type) \

   197   FP_SELECT(TypeName, \

   198     DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )

   199 #else /* USDT2 */

   200 #define DT_RETURN_MARK_DECL_FOR(TypeName, name, type, probe)    \

   201   FP_SELECT(TypeName, \

   202     DT_RETURN_MARK_DECL(name, type, probe), DT_VOID_RETURN_MARK_DECL(name, probe) )

   203 #endif /* USDT2 */

   204 #define DT_RETURN_MARK_FOR(TypeName, name, type, ref) \

   205   FP_SELECT(TypeName, \

   206     DT_RETURN_MARK(name, type, ref), DT_VOID_RETURN_MARK(name) )

   209 // out-of-line helpers for class jfieldIDWorkaround:

   211 bool jfieldIDWorkaround::is_valid_jfieldID(Klass* k, jfieldID id) {

   212   if (jfieldIDWorkaround::is_instance_jfieldID(k, id)) {

   213     uintptr_t as_uint = (uintptr_t) id;

   214     intptr_t offset = raw_instance_offset(id);

   215     if (is_checked_jfieldID(id)) {

   216       if (!klass_hash_ok(k, id)) {

   217         return false;

   218       }

   219     }

   220     return InstanceKlass::cast(k)->contains_field_offset(offset);

   221   } else {

   222     JNIid* result = (JNIid*) id;

   223 #ifdef ASSERT

   224     return result != NULL && result->is_static_field_id();

   225 #else

   226     return result != NULL;

   227 #endif

   228   }

   229 }

   232 intptr_t jfieldIDWorkaround::encode_klass_hash(Klass* k, intptr_t offset) {

   233   if (offset <= small_offset_mask) {

   234     Klass* field_klass = k;

   235     Klass* super_klass = field_klass->super();

   236     // With compressed oops the most super class with nonstatic fields would

   237     // be the owner of fields embedded in the header.

   238     while (InstanceKlass::cast(super_klass)->has_nonstatic_fields() &&

   239            InstanceKlass::cast(super_klass)->contains_field_offset(offset)) {

   240       field_klass = super_klass;   // super contains the field also

   241       super_klass = field_klass->super();

   242     }

   243     debug_only(No_Safepoint_Verifier nosafepoint;)

   244     uintptr_t klass_hash = field_klass->identity_hash();

   245     return ((klass_hash & klass_mask) << klass_shift) | checked_mask_in_place;

   246   } else {

   247 #if 0

   248     #ifndef PRODUCT

   249     {

   250       ResourceMark rm;

   251       warning("VerifyJNIFields: long offset %d in %s", offset, k->external_name());

   252     }

   253     #endif

   254 #endif

   255     return 0;

   256   }

   257 }

   259 bool jfieldIDWorkaround::klass_hash_ok(Klass* k, jfieldID id) {

   260   uintptr_t as_uint = (uintptr_t) id;

   261   intptr_t klass_hash = (as_uint >> klass_shift) & klass_mask;

   262   do {

   263     debug_only(No_Safepoint_Verifier nosafepoint;)

   264     // Could use a non-blocking query for identity_hash here...

   265     if ((k->identity_hash() & klass_mask) == klass_hash)

   266       return true;

   267     k = k->super();

   268   } while (k != NULL);

   269   return false;

   270 }

   272 void jfieldIDWorkaround::verify_instance_jfieldID(Klass* k, jfieldID id) {

   273   guarantee(jfieldIDWorkaround::is_instance_jfieldID(k, id), "must be an instance field" );

   274   uintptr_t as_uint = (uintptr_t) id;

   275   intptr_t offset = raw_instance_offset(id);

   276   if (VerifyJNIFields) {

   277     if (is_checked_jfieldID(id)) {

   278       guarantee(klass_hash_ok(k, id),

   279     "Bug in native code: jfieldID class must match object");

   280     } else {

   281 #if 0

   282       #ifndef PRODUCT

   283       if (Verbose) {

   284   ResourceMark rm;

   285   warning("VerifyJNIFields: unverified offset %d for %s", offset, k->external_name());

   286       }

   287       #endif

   288 #endif

   289     }

   290   }

   291   guarantee(InstanceKlass::cast(k)->contains_field_offset(offset),

   292       "Bug in native code: jfieldID offset must address interior of object");

   293 }

   295 // Pick a reasonable higher bound for local capacity requested

   296 // for EnsureLocalCapacity and PushLocalFrame.  We don't want it too

   297 // high because a test (or very unusual application) may try to allocate

   298 // that many handles and run out of swap space.  An implementation is

   299 // permitted to allocate more handles than the ensured capacity, so this

   300 // value is set high enough to prevent compatibility problems.

   301 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   304 // Wrapper to trace JNI functions

   306 #ifdef ASSERT

   307   Histogram* JNIHistogram;

   308   static volatile jint JNIHistogram_lock = 0;

   310   class JNITraceWrapper : public StackObj {

   311    public:

   312     JNITraceWrapper(const char* format, ...) ATTRIBUTE_PRINTF(2, 3) {

   313       if (TraceJNICalls) {

   314         va_list ap;

   315         va_start(ap, format);

   316         tty->print("JNI ");

   317         tty->vprint_cr(format, ap);

   318         va_end(ap);

   319       }

   320     }

   321   };

   323   class JNIHistogramElement : public HistogramElement {

   324     public:

   325      JNIHistogramElement(const char* name);

   326   };

   328   JNIHistogramElement::JNIHistogramElement(const char* elementName) {

   329     _name = elementName;

   330     uintx count = 0;

   332     while (Atomic::cmpxchg(1, &JNIHistogram_lock, 0) != 0) {

   333       while (OrderAccess::load_acquire(&JNIHistogram_lock) != 0) {

   334         count +=1;

   335         if ( (WarnOnStalledSpinLock > 0)

   336           && (count % WarnOnStalledSpinLock == 0)) {

   337           warning("JNIHistogram_lock seems to be stalled");

   338         }

   339       }

   340      }

   343     if(JNIHistogram == NULL)

   344       JNIHistogram = new Histogram("JNI Call Counts",100);

   346     JNIHistogram->add_element(this);

   347     Atomic::dec(&JNIHistogram_lock);

   348   }

   350   #define JNICountWrapper(arg)                                     \

   351      static JNIHistogramElement* e = new JNIHistogramElement(arg); \

   352       /* There is a MT-race condition in VC++. So we need to make sure that that e has been initialized */ \

   353      if (e != NULL) e->increment_count()

   354   #define JNIWrapper(arg) JNICountWrapper(arg); JNITraceWrapper(arg)

   355 #else

   356   #define JNIWrapper(arg)

   357 #endif

   360 // Implementation of JNI entries

   362 #ifndef USDT2

   363 DT_RETURN_MARK_DECL(DefineClass, jclass);

   364 #else /* USDT2 */

   365 DT_RETURN_MARK_DECL(DefineClass, jclass

   366                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   367 #endif /* USDT2 */

   369 JNI_ENTRY(jclass, jni_DefineClass(JNIEnv *env, const char *name, jobject loaderRef,

   370                                   const jbyte *buf, jsize bufLen))

   371   JNIWrapper("DefineClass");

   373 #ifndef USDT2

   374   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

   375     env, name, loaderRef, buf, bufLen);

   376 #else /* USDT2 */

   377   HOTSPOT_JNI_DEFINECLASS_ENTRY(

   378     env, (char*) name, loaderRef, (char*) buf, bufLen);

   379 #endif /* USDT2 */

   380   jclass cls = NULL;

   381   DT_RETURN_MARK(DefineClass, jclass, (const jclass&)cls);

   383   TempNewSymbol class_name = NULL;

   384   // Since exceptions can be thrown, class initialization can take place

   385   // if name is NULL no check for class name in .class stream has to be made.

   386   if (name != NULL) {

   387     const int str_len = (int)strlen(name);

   388     if (str_len > Symbol::max_length()) {

   389       // It's impossible to create this class;  the name cannot fit

   390       // into the constant pool.

   391       THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);

   392     }

   393     class_name = SymbolTable::new_symbol(name, CHECK_NULL);

   394   }

   395   ResourceMark rm(THREAD);

   396   ClassFileStream st((u1*) buf, bufLen, NULL);

   397   Handle class_loader (THREAD, JNIHandles::resolve(loaderRef));

   399   if (UsePerfData && !class_loader.is_null()) {

   400     // check whether the current caller thread holds the lock or not.

   401     // If not, increment the corresponding counter

   402     if (ObjectSynchronizer::

   403         query_lock_ownership((JavaThread*)THREAD, class_loader) !=

   404         ObjectSynchronizer::owner_self) {

   405       ClassLoader::sync_JNIDefineClassLockFreeCounter()->inc();

   406     }

   407   }

   408   Klass* k = SystemDictionary::resolve_from_stream(class_name, class_loader,

   409                                                      Handle(), &st, true,

   410                                                      CHECK_NULL);

   412   if (TraceClassResolution && k != NULL) {

   413     trace_class_resolution(k);

   414   }

   416   cls = (jclass)JNIHandles::make_local(

   417     env, k->java_mirror());

   418   return cls;

   419 JNI_END

   423 static bool first_time_FindClass = true;

   425 #ifndef USDT2

   426 DT_RETURN_MARK_DECL(FindClass, jclass);

   427 #else /* USDT2 */

   428 DT_RETURN_MARK_DECL(FindClass, jclass

   429                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   430 #endif /* USDT2 */

   432 JNI_ENTRY(jclass, jni_FindClass(JNIEnv *env, const char *name))

   433   JNIWrapper("FindClass");

   434 #ifndef USDT2

   435   DTRACE_PROBE2(hotspot_jni, FindClass__entry, env, name);

   436 #else /* USDT2 */

   437   HOTSPOT_JNI_FINDCLASS_ENTRY(

   438                               env, (char *)name);

   439 #endif /* USDT2 */

   441   jclass result = NULL;

   442   DT_RETURN_MARK(FindClass, jclass, (const jclass&)result);

   444   // Remember if we are the first invocation of jni_FindClass

   445   bool first_time = first_time_FindClass;

   446   first_time_FindClass = false;

   448   // Sanity check the name:  it cannot be null or larger than the maximum size

   449   // name we can fit in the constant pool.

   450   if (name == NULL || (int)strlen(name) > Symbol::max_length()) {

   451     THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), name);

   452   }

   454   //%note jni_3

   455   Handle loader;

   456   Handle protection_domain;

   457   // Find calling class

   458   instanceKlassHandle k (THREAD, thread->security_get_caller_class(0));

   459   if (k.not_null()) {

   460     loader = Handle(THREAD, k->class_loader());

   461     // Special handling to make sure JNI_OnLoad and JNI_OnUnload are executed

   462     // in the correct class context.

   463     if (loader.is_null() &&

   464         k->name() == vmSymbols::java_lang_ClassLoader_NativeLibrary()) {

   465       JavaValue result(T_OBJECT);

   466       JavaCalls::call_static(&result, k,

   467                                       vmSymbols::getFromClass_name(),

   468                                       vmSymbols::void_class_signature(),

   469                                       thread);

   470       if (HAS_PENDING_EXCEPTION) {

   471         Handle ex(thread, thread->pending_exception());

   472         CLEAR_PENDING_EXCEPTION;

   473         THROW_HANDLE_0(ex);

   474       }

   475       oop mirror = (oop) result.get_jobject();

   476       loader = Handle(THREAD,

   477         InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->class_loader());

   478       protection_domain = Handle(THREAD,

   479         InstanceKlass::cast(java_lang_Class::as_Klass(mirror))->protection_domain());

   480     }

   481   } else {

   482     // We call ClassLoader.getSystemClassLoader to obtain the system class loader.

   483     loader = Handle(THREAD, SystemDictionary::java_system_loader());

   484   }

   486   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

   487   result = find_class_from_class_loader(env, sym, true, loader,

   488                                         protection_domain, true, thread);

   490   if (TraceClassResolution && result != NULL) {

   491     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

   492   }

   494   // If we were the first invocation of jni_FindClass, we enable compilation again

   495   // rather than just allowing invocation counter to overflow and decay.

   496   // Controlled by flag DelayCompilationDuringStartup.

   497   if (first_time && !CompileTheWorld)

   498     CompilationPolicy::completed_vm_startup();

   500   return result;

   501 JNI_END

   503 #ifndef USDT2

   504 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   505 #else /* USDT2 */

   506 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   507                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   508 #endif /* USDT2 */

   510 JNI_ENTRY(jmethodID, jni_FromReflectedMethod(JNIEnv *env, jobject method))

   511   JNIWrapper("FromReflectedMethod");

   512 #ifndef USDT2

   513   DTRACE_PROBE2(hotspot_jni, FromReflectedMethod__entry, env, method);

   514 #else /* USDT2 */

   515   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   516                                         env, method);

   517 #endif /* USDT2 */

   518   jmethodID ret = NULL;

   519   DT_RETURN_MARK(FromReflectedMethod, jmethodID, (const jmethodID&)ret);

   521   // method is a handle to a java.lang.reflect.Method object

   522   oop reflected  = JNIHandles::resolve_non_null(method);

   523   oop mirror     = NULL;

   524   int slot       = 0;

   526   if (reflected->klass() == SystemDictionary::reflect_Constructor_klass()) {

   527     mirror = java_lang_reflect_Constructor::clazz(reflected);

   528     slot   = java_lang_reflect_Constructor::slot(reflected);

   529   } else {

   530     assert(reflected->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");

   531     mirror = java_lang_reflect_Method::clazz(reflected);

   532     slot   = java_lang_reflect_Method::slot(reflected);

   533   }

   534   Klass* k     = java_lang_Class::as_Klass(mirror);

   536   KlassHandle k1(THREAD, k);

   537   // Make sure class is initialized before handing id's out to methods

   538   k1()->initialize(CHECK_NULL);

   539   Method* m = InstanceKlass::cast(k1())->method_with_idnum(slot);

   540   ret = m==NULL? NULL : m->jmethod_id();  // return NULL if reflected method deleted

   541   return ret;

   542 JNI_END

   544 #ifndef USDT2

   545 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   546 #else /* USDT2 */

   547 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   548                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   549 #endif /* USDT2 */

   551 JNI_ENTRY(jfieldID, jni_FromReflectedField(JNIEnv *env, jobject field))

   552   JNIWrapper("FromReflectedField");

   553 #ifndef USDT2

   554   DTRACE_PROBE2(hotspot_jni, FromReflectedField__entry, env, field);

   555 #else /* USDT2 */

   556   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   557                                        env, field);

   558 #endif /* USDT2 */

   559   jfieldID ret = NULL;

   560   DT_RETURN_MARK(FromReflectedField, jfieldID, (const jfieldID&)ret);

   562   // field is a handle to a java.lang.reflect.Field object

   563   oop reflected   = JNIHandles::resolve_non_null(field);

   564   oop mirror      = java_lang_reflect_Field::clazz(reflected);

   565   Klass* k      = java_lang_Class::as_Klass(mirror);

   566   int slot        = java_lang_reflect_Field::slot(reflected);

   567   int modifiers   = java_lang_reflect_Field::modifiers(reflected);

   569   KlassHandle k1(THREAD, k);

   570   // Make sure class is initialized before handing id's out to fields

   571   k1()->initialize(CHECK_NULL);

   573   // First check if this is a static field

   574   if (modifiers & JVM_ACC_STATIC) {

   575     intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );

   576     JNIid* id = InstanceKlass::cast(k1())->jni_id_for(offset);

   577     assert(id != NULL, "corrupt Field object");

   578     debug_only(id->set_is_static_field_id();)

   579     // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

   580     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   581     return ret;

   582   }

   584   // The slot is the index of the field description in the field-array

   585   // The jfieldID is the offset of the field within the object

   586   // It may also have hash bits for k, if VerifyJNIFields is turned on.

   587   intptr_t offset = InstanceKlass::cast(k1())->field_offset( slot );

   588   assert(InstanceKlass::cast(k1())->contains_field_offset(offset), "stay within object");

   589   ret = jfieldIDWorkaround::to_instance_jfieldID(k1(), offset);

   590   return ret;

   591 JNI_END

   593 #ifndef USDT2

   594 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   595 #else /* USDT2 */

   596 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   597                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   598 #endif /* USDT2 */

   600 JNI_ENTRY(jobject, jni_ToReflectedMethod(JNIEnv *env, jclass cls, jmethodID method_id, jboolean isStatic))

   601   JNIWrapper("ToReflectedMethod");

   602 #ifndef USDT2

   603   DTRACE_PROBE4(hotspot_jni, ToReflectedMethod__entry, env, cls, method_id, isStatic);

   604 #else /* USDT2 */

   605   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

   606                                       env, cls, (uintptr_t) method_id, isStatic);

   607 #endif /* USDT2 */

   608   jobject ret = NULL;

   609   DT_RETURN_MARK(ToReflectedMethod, jobject, (const jobject&)ret);

   611   methodHandle m (THREAD, Method::resolve_jmethod_id(method_id));

   612   assert(m->is_static() == (isStatic != 0), "jni_ToReflectedMethod access flags doesn't match");

   613   oop reflection_method;

   614   if (m->is_initializer()) {

   615     reflection_method = Reflection::new_constructor(m, CHECK_NULL);

   616   } else {

   617     reflection_method = Reflection::new_method(m, UseNewReflection, false, CHECK_NULL);

   618   }

   619   ret = JNIHandles::make_local(env, reflection_method);

   620   return ret;

   621 JNI_END

   623 #ifndef USDT2

   624 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   625 #else /* USDT2 */

   626 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   627                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   628 #endif /* USDT2 */

   630 JNI_ENTRY(jclass, jni_GetSuperclass(JNIEnv *env, jclass sub))

   631   JNIWrapper("GetSuperclass");

   632 #ifndef USDT2

   633   DTRACE_PROBE2(hotspot_jni, GetSuperclass__entry, env, sub);

   634 #else /* USDT2 */

   635   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   636                                   env, sub);

   637 #endif /* USDT2 */

   638   jclass obj = NULL;

   639   DT_RETURN_MARK(GetSuperclass, jclass, (const jclass&)obj);

   641   oop mirror = JNIHandles::resolve_non_null(sub);

   642   // primitive classes return NULL

   643   if (java_lang_Class::is_primitive(mirror)) return NULL;

   645   // Rules of Class.getSuperClass as implemented by KLass::java_super:

   646   // arrays return Object

   647   // interfaces return NULL

   648   // proper classes return Klass::super()

   649   Klass* k = java_lang_Class::as_Klass(mirror);

   650   if (k->is_interface()) return NULL;

   652   // return mirror for superclass

   653   Klass* super = k->java_super();

   654   // super2 is the value computed by the compiler's getSuperClass intrinsic:

   655   debug_only(Klass* super2 = ( k->oop_is_array()

   656                                  ? SystemDictionary::Object_klass()

   657                                  : k->super() ) );

   658   assert(super == super2,

   659          "java_super computation depends on interface, array, other super");

   660   obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(super->java_mirror());

   661   return obj;

   662 JNI_END

   664 JNI_QUICK_ENTRY(jboolean, jni_IsAssignableFrom(JNIEnv *env, jclass sub, jclass super))

   665   JNIWrapper("IsSubclassOf");

   666 #ifndef USDT2

   667   DTRACE_PROBE3(hotspot_jni, IsAssignableFrom__entry, env, sub, super);

   668 #else /* USDT2 */

   669   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   670                                      env, sub, super);

   671 #endif /* USDT2 */

   672   oop sub_mirror   = JNIHandles::resolve_non_null(sub);

   673   oop super_mirror = JNIHandles::resolve_non_null(super);

   674   if (java_lang_Class::is_primitive(sub_mirror) ||

   675       java_lang_Class::is_primitive(super_mirror)) {

   676     jboolean ret = (sub_mirror == super_mirror);

   677 #ifndef USDT2

   678     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   679 #else /* USDT2 */

   680     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   681                                         ret);

   682 #endif /* USDT2 */

   683     return ret;

   684   }

   685   Klass* sub_klass   = java_lang_Class::as_Klass(sub_mirror);

   686   Klass* super_klass = java_lang_Class::as_Klass(super_mirror);

   687   assert(sub_klass != NULL && super_klass != NULL, "invalid arguments to jni_IsAssignableFrom");

   688   jboolean ret = sub_klass->is_subtype_of(super_klass) ?

   689                    JNI_TRUE : JNI_FALSE;

   690 #ifndef USDT2

   691   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   692 #else /* USDT2 */

   693   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   694                                       ret);

   695 #endif /* USDT2 */

   696   return ret;

   697 JNI_END

   699 #ifndef USDT2

   700 DT_RETURN_MARK_DECL(Throw, jint);

   701 #else /* USDT2 */

   702 DT_RETURN_MARK_DECL(Throw, jint

   703                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   704 #endif /* USDT2 */

   706 JNI_ENTRY(jint, jni_Throw(JNIEnv *env, jthrowable obj))

   707   JNIWrapper("Throw");

   708 #ifndef USDT2

   709   DTRACE_PROBE2(hotspot_jni, Throw__entry, env, obj);

   710 #else /* USDT2 */

   711   HOTSPOT_JNI_THROW_ENTRY(

   712  env, obj);

   713 #endif /* USDT2 */

   714   jint ret = JNI_OK;

   715   DT_RETURN_MARK(Throw, jint, (const jint&)ret);

   717   THROW_OOP_(JNIHandles::resolve(obj), JNI_OK);

   718   ShouldNotReachHere();

   719 JNI_END

   721 #ifndef USDT2

   722 DT_RETURN_MARK_DECL(ThrowNew, jint);

   723 #else /* USDT2 */

   724 DT_RETURN_MARK_DECL(ThrowNew, jint

   725                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   726 #endif /* USDT2 */

   728 JNI_ENTRY(jint, jni_ThrowNew(JNIEnv *env, jclass clazz, const char *message))

   729   JNIWrapper("ThrowNew");

   730 #ifndef USDT2

   731   DTRACE_PROBE3(hotspot_jni, ThrowNew__entry, env, clazz, message);

   732 #else /* USDT2 */

   733   HOTSPOT_JNI_THROWNEW_ENTRY(

   734                              env, clazz, (char *) message);

   735 #endif /* USDT2 */

   736   jint ret = JNI_OK;

   737   DT_RETURN_MARK(ThrowNew, jint, (const jint&)ret);

   739   InstanceKlass* k = InstanceKlass::cast(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

   740   Symbol*  name = k->name();

   741   Handle class_loader (THREAD,  k->class_loader());

   742   Handle protection_domain (THREAD, k->protection_domain());

   743   THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);

   744   ShouldNotReachHere();

   745 JNI_END

   748 // JNI functions only transform a pending async exception to a synchronous

   749 // exception in ExceptionOccurred and ExceptionCheck calls, since

   750 // delivering an async exception in other places won't change the native

   751 // code's control flow and would be harmful when native code further calls

   752 // JNI functions with a pending exception. Async exception is also checked

   753 // during the call, so ExceptionOccurred/ExceptionCheck won't return

   754 // false but deliver the async exception at the very end during

   755 // state transition.

   757 static void jni_check_async_exceptions(JavaThread *thread) {

   758   assert(thread == Thread::current(), "must be itself");

   759   thread->check_and_handle_async_exceptions();

   760 }

   762 JNI_ENTRY_NO_PRESERVE(jthrowable, jni_ExceptionOccurred(JNIEnv *env))

   763   JNIWrapper("ExceptionOccurred");

   764 #ifndef USDT2

   765   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   766 #else /* USDT2 */

   767   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   768                                       env);

   769 #endif /* USDT2 */

   770   jni_check_async_exceptions(thread);

   771   oop exception = thread->pending_exception();

   772   jthrowable ret = (jthrowable) JNIHandles::make_local(env, exception);

   773 #ifndef USDT2

   774   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   775 #else /* USDT2 */

   776   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   777                                        ret);

   778 #endif /* USDT2 */

   779   return ret;

   780 JNI_END

   783 JNI_ENTRY_NO_PRESERVE(void, jni_ExceptionDescribe(JNIEnv *env))

   784   JNIWrapper("ExceptionDescribe");

   785 #ifndef USDT2

   786   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   787 #else /* USDT2 */

   788   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   789                                       env);

   790 #endif /* USDT2 */

   791   if (thread->has_pending_exception()) {

   792     Handle ex(thread, thread->pending_exception());

   793     thread->clear_pending_exception();

   794     if (ex->is_a(SystemDictionary::ThreadDeath_klass())) {

   795       // Don't print anything if we are being killed.

   796     } else {

   797       jio_fprintf(defaultStream::error_stream(), "Exception ");

   798       if (thread != NULL && thread->threadObj() != NULL) {

   799         ResourceMark rm(THREAD);

   800         jio_fprintf(defaultStream::error_stream(),

   801         "in thread \"%s\" ", thread->get_thread_name());

   802       }

   803       if (ex->is_a(SystemDictionary::Throwable_klass())) {

   804         JavaValue result(T_VOID);

   805         JavaCalls::call_virtual(&result,

   806                                 ex,

   807                                 KlassHandle(THREAD,

   808                                   SystemDictionary::Throwable_klass()),

   809                                 vmSymbols::printStackTrace_name(),

   810                                 vmSymbols::void_method_signature(),

   811                                 THREAD);

   812         // If an exception is thrown in the call it gets thrown away. Not much

   813         // we can do with it. The native code that calls this, does not check

   814         // for the exception - hence, it might still be in the thread when DestroyVM gets

   815         // called, potentially causing a few asserts to trigger - since no pending exception

   816         // is expected.

   817         CLEAR_PENDING_EXCEPTION;

   818       } else {

   819         ResourceMark rm(THREAD);

   820         jio_fprintf(defaultStream::error_stream(),

   821         ". Uncaught exception of type %s.",

   822         ex->klass()->external_name());

   823       }

   824     }

   825   }

   826 #ifndef USDT2

   827   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   828 #else /* USDT2 */

   829   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   830                                        );

   831 #endif /* USDT2 */

   832 JNI_END

   835 JNI_QUICK_ENTRY(void, jni_ExceptionClear(JNIEnv *env))

   836   JNIWrapper("ExceptionClear");

   837 #ifndef USDT2

   838   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   839 #else /* USDT2 */

   840   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   841                                    env);

   842 #endif /* USDT2 */

   844   // The jni code might be using this API to clear java thrown exception.

   845   // So just mark jvmti thread exception state as exception caught.

   846   JvmtiThreadState *state = JavaThread::current()->jvmti_thread_state();

   847   if (state != NULL && state->is_exception_detected()) {

   848     state->set_exception_caught();

   849   }

   850   thread->clear_pending_exception();

   851 #ifndef USDT2

   852   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   853 #else /* USDT2 */

   854   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   855                                     );

   856 #endif /* USDT2 */

   857 JNI_END

   860 JNI_ENTRY(void, jni_FatalError(JNIEnv *env, const char *msg))

   861   JNIWrapper("FatalError");

   862 #ifndef USDT2

   863   DTRACE_PROBE2(hotspot_jni, FatalError__entry, env, msg);

   864 #else /* USDT2 */

   865   HOTSPOT_JNI_FATALERROR_ENTRY(

   866                                env, (char *) msg);

   867 #endif /* USDT2 */

   868   tty->print_cr("FATAL ERROR in native method: %s", msg);

   869   thread->print_stack();

   870   os::abort(); // Dump core and abort

   871 JNI_END

   874 JNI_ENTRY(jint, jni_PushLocalFrame(JNIEnv *env, jint capacity))

   875   JNIWrapper("PushLocalFrame");

   876 #ifndef USDT2

   877   DTRACE_PROBE2(hotspot_jni, PushLocalFrame__entry, env, capacity);

   878 #else /* USDT2 */

   879   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   880                                    env, capacity);

   881 #endif /* USDT2 */

   882   //%note jni_11

   883   if (capacity < 0 || capacity > MAX_REASONABLE_LOCAL_CAPACITY) {

   884 #ifndef USDT2

   885     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   886 #else /* USDT2 */

   887     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   888                                       (uint32_t)JNI_ERR);

   889 #endif /* USDT2 */

   890     return JNI_ERR;

   891   }

   892   JNIHandleBlock* old_handles = thread->active_handles();

   893   JNIHandleBlock* new_handles = JNIHandleBlock::allocate_block(thread);

   894   assert(new_handles != NULL, "should not be NULL");

   895   new_handles->set_pop_frame_link(old_handles);

   896   thread->set_active_handles(new_handles);

   897   jint ret = JNI_OK;

   898 #ifndef USDT2

   899   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   900 #else /* USDT2 */

   901   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   902                                     ret);

   903 #endif /* USDT2 */

   904   return ret;

   905 JNI_END

   908 JNI_ENTRY(jobject, jni_PopLocalFrame(JNIEnv *env, jobject result))

   909   JNIWrapper("PopLocalFrame");

   910 #ifndef USDT2

   911   DTRACE_PROBE2(hotspot_jni, PopLocalFrame__entry, env, result);

   912 #else /* USDT2 */

   913   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   914                                   env, result);

   915 #endif /* USDT2 */

   916   //%note jni_11

   917   Handle result_handle(thread, JNIHandles::resolve(result));

   918   JNIHandleBlock* old_handles = thread->active_handles();

   919   JNIHandleBlock* new_handles = old_handles->pop_frame_link();

   920   if (new_handles != NULL) {

   921     // As a sanity check we only release the handle blocks if the pop_frame_link is not NULL.

   922     // This way code will still work if PopLocalFrame is called without a corresponding

   923     // PushLocalFrame call. Note that we set the pop_frame_link to NULL explicitly, otherwise

   924     // the release_block call will release the blocks.

   925     thread->set_active_handles(new_handles);

   926     old_handles->set_pop_frame_link(NULL);              // clear link we won't release new_handles below

   927     JNIHandleBlock::release_block(old_handles, thread); // may block

   928     result = JNIHandles::make_local(thread, result_handle());

   929   }

   930 #ifndef USDT2

   931   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   932 #else /* USDT2 */

   933   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   934                                    result);

   935 #endif /* USDT2 */

   936   return result;

   937 JNI_END

   940 JNI_ENTRY(jobject, jni_NewGlobalRef(JNIEnv *env, jobject ref))

   941   JNIWrapper("NewGlobalRef");

   942 #ifndef USDT2

   943   DTRACE_PROBE2(hotspot_jni, NewGlobalRef__entry, env, ref);

   944 #else /* USDT2 */

   945   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   946                                  env, ref);

   947 #endif /* USDT2 */

   948   Handle ref_handle(thread, JNIHandles::resolve(ref));

   949   jobject ret = JNIHandles::make_global(ref_handle);

   950 #ifndef USDT2

   951   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   952 #else /* USDT2 */

   953   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   954                                   ret);

   955 #endif /* USDT2 */

   956   return ret;

   957 JNI_END

   959 // Must be JNI_ENTRY (with HandleMark)

   960 JNI_ENTRY_NO_PRESERVE(void, jni_DeleteGlobalRef(JNIEnv *env, jobject ref))

   961   JNIWrapper("DeleteGlobalRef");

   962 #ifndef USDT2

   963   DTRACE_PROBE2(hotspot_jni, DeleteGlobalRef__entry, env, ref);

   964 #else /* USDT2 */

   965   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   966                                     env, ref);

   967 #endif /* USDT2 */

   968   JNIHandles::destroy_global(ref);

   969 #ifndef USDT2

   970   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   971 #else /* USDT2 */

   972   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   973                                      );

   974 #endif /* USDT2 */

   975 JNI_END

   977 JNI_QUICK_ENTRY(void, jni_DeleteLocalRef(JNIEnv *env, jobject obj))

   978   JNIWrapper("DeleteLocalRef");

   979 #ifndef USDT2

   980   DTRACE_PROBE2(hotspot_jni, DeleteLocalRef__entry, env, obj);

   981 #else /* USDT2 */

   982   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   983                                    env, obj);

   984 #endif /* USDT2 */

   985   JNIHandles::destroy_local(obj);

   986 #ifndef USDT2

   987   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   988 #else /* USDT2 */

   989   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   990                                     );

   991 #endif /* USDT2 */

   992 JNI_END

   994 JNI_QUICK_ENTRY(jboolean, jni_IsSameObject(JNIEnv *env, jobject r1, jobject r2))

   995   JNIWrapper("IsSameObject");

   996 #ifndef USDT2

   997   DTRACE_PROBE3(hotspot_jni, IsSameObject__entry, env, r1, r2);

   998 #else /* USDT2 */

   999   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

  1000                                  env, r1, r2);

  1001 #endif /* USDT2 */

  1002   oop a = JNIHandles::resolve(r1);

  1003   oop b = JNIHandles::resolve(r2);

  1004   jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;

  1005 #ifndef USDT2

  1006   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1007 #else /* USDT2 */

  1008   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1009                                   ret);

  1010 #endif /* USDT2 */

  1011   return ret;

  1012 JNI_END

  1015 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))

  1016   JNIWrapper("NewLocalRef");

  1017 #ifndef USDT2

  1018   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);

  1019 #else /* USDT2 */

  1020   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1021                                 env, ref);

  1022 #endif /* USDT2 */

  1023   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));

  1024 #ifndef USDT2

  1025   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1026 #else /* USDT2 */

  1027   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1028                                  ret);

  1029 #endif /* USDT2 */

  1030   return ret;

  1031 JNI_END

  1033 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))

  1034   JNIWrapper("EnsureLocalCapacity");

  1035 #ifndef USDT2

  1036   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);

  1037 #else /* USDT2 */

  1038   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1039                                         env, capacity);

  1040 #endif /* USDT2 */

  1041   jint ret;

  1042   if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) {

  1043     ret = JNI_OK;

  1044   } else {

  1045     ret = JNI_ERR;

  1046   }

  1047 #ifndef USDT2

  1048   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1049 #else /* USDT2 */

  1050   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1051                                          ret);

  1052 #endif /* USDT2 */

  1053   return ret;

  1054 JNI_END

  1056 // Return the Handle Type

  1057 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))

  1058   JNIWrapper("GetObjectRefType");

  1059 #ifndef USDT2

  1060   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);

  1061 #else /* USDT2 */

  1062   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1063                                      env, obj);

  1064 #endif /* USDT2 */

  1065   jobjectRefType ret;

  1066   if (JNIHandles::is_local_handle(thread, obj) ||

  1067       JNIHandles::is_frame_handle(thread, obj))

  1068     ret = JNILocalRefType;

  1069   else if (JNIHandles::is_global_handle(obj))

  1070     ret = JNIGlobalRefType;

  1071   else if (JNIHandles::is_weak_global_handle(obj))

  1072     ret = JNIWeakGlobalRefType;

  1073   else

  1074     ret = JNIInvalidRefType;

  1075 #ifndef USDT2

  1076   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1077 #else /* USDT2 */

  1078   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1079                                       (void *) ret);

  1080 #endif /* USDT2 */

  1081   return ret;

  1082 JNI_END

  1085 class JNI_ArgumentPusher : public SignatureIterator {

  1086  protected:

  1087   JavaCallArguments*  _arguments;

  1089   virtual void get_bool   () = 0;

  1090   virtual void get_char   () = 0;

  1091   virtual void get_short  () = 0;

  1092   virtual void get_byte   () = 0;

  1093   virtual void get_int    () = 0;

  1094   virtual void get_long   () = 0;

  1095   virtual void get_float  () = 0;

  1096   virtual void get_double () = 0;

  1097   virtual void get_object () = 0;

  1099   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {

  1100     this->_return_type = T_ILLEGAL;

  1101     _arguments = NULL;

  1102   }

  1104  public:

  1105   virtual void iterate( uint64_t fingerprint ) = 0;

  1107   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }

  1109   inline void do_bool()                     { if (!is_return_type()) get_bool();   }

  1110   inline void do_char()                     { if (!is_return_type()) get_char();   }

  1111   inline void do_short()                    { if (!is_return_type()) get_short();  }

  1112   inline void do_byte()                     { if (!is_return_type()) get_byte();   }

  1113   inline void do_int()                      { if (!is_return_type()) get_int();    }

  1114   inline void do_long()                     { if (!is_return_type()) get_long();   }

  1115   inline void do_float()                    { if (!is_return_type()) get_float();  }

  1116   inline void do_double()                   { if (!is_return_type()) get_double(); }

  1117   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }

  1118   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array

  1119   inline void do_void()                     { }

  1121   JavaCallArguments* arguments()     { return _arguments; }

  1122   void push_receiver(Handle h)       { _arguments->push_oop(h); }

  1123 };

  1126 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1127  protected:

  1128   va_list _ap;

  1130   inline void get_bool()   { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg

  1131   inline void get_char()   { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg

  1132   inline void get_short()  { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg

  1133   inline void get_byte()   { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg

  1134   inline void get_int()    { _arguments->push_int(va_arg(_ap, jint)); }

  1136   // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests

  1138   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }

  1139   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg

  1140   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }

  1141   inline void get_object() { jobject l = va_arg(_ap, jobject);

  1142                              _arguments->push_oop(Handle((oop *)l, false)); }

  1144   inline void set_ap(va_list rap) {

  1145 #ifdef va_copy

  1146     va_copy(_ap, rap);

  1147 #elif defined (__va_copy)

  1148     __va_copy(_ap, rap);

  1149 #else

  1150     _ap = rap;

  1151 #endif

  1152   }

  1154  public:

  1155   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1156        : JNI_ArgumentPusher(signature) {

  1157     set_ap(rap);

  1158   }

  1159   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

  1160       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1161     set_ap(rap);

  1162   }

  1164   // Optimized path if we have the bitvector form of signature

  1165   void iterate( uint64_t fingerprint ) {

  1166     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments

  1167     else {

  1168       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1169                                   result_feature_mask);

  1171       assert(fingerprint, "Fingerprint should not be 0");

  1172       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1173       while ( 1 ) {

  1174         switch ( fingerprint & parameter_feature_mask ) {

  1175           case bool_parm:

  1176           case char_parm:

  1177           case short_parm:

  1178           case byte_parm:

  1179           case int_parm:

  1180             get_int();

  1181             break;

  1182           case obj_parm:

  1183             get_object();

  1184             break;

  1185           case long_parm:

  1186             get_long();

  1187             break;

  1188           case float_parm:

  1189             get_float();

  1190             break;

  1191           case double_parm:

  1192             get_double();

  1193             break;

  1194           case done_parm:

  1195             return;

  1196             break;

  1197           default:

  1198             ShouldNotReachHere();

  1199             break;

  1200         }

  1201         fingerprint >>= parameter_feature_size;

  1202       }

  1203     }

  1204   }

  1205 };

  1208 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1209  protected:

  1210   const jvalue *_ap;

  1212   inline void get_bool()   { _arguments->push_int((jint)(_ap++)->z); }

  1213   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }

  1214   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }

  1215   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }

  1216   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }

  1218   inline void get_long()   { _arguments->push_long((_ap++)->j);  }

  1219   inline void get_float()  { _arguments->push_float((_ap++)->f); }

  1220   inline void get_double() { _arguments->push_double((_ap++)->d);}

  1221   inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }

  1223   inline void set_ap(const jvalue *rap) { _ap = rap; }

  1225  public:

  1226   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)

  1227        : JNI_ArgumentPusher(signature) {

  1228     set_ap(rap);

  1229   }

  1230   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

  1231       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1232     set_ap(rap);

  1233   }

  1235   // Optimized path if we have the bitvector form of signature

  1236   void iterate( uint64_t fingerprint ) {

  1237     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments

  1238     else {

  1239       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1240                                   result_feature_mask);

  1241       assert(fingerprint, "Fingerprint should not be 0");

  1242       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1243       while ( 1 ) {

  1244         switch ( fingerprint & parameter_feature_mask ) {

  1245           case bool_parm:

  1246             get_bool();

  1247             break;

  1248           case char_parm:

  1249             get_char();

  1250             break;

  1251           case short_parm:

  1252             get_short();

  1253             break;

  1254           case byte_parm:

  1255             get_byte();

  1256             break;

  1257           case int_parm:

  1258             get_int();

  1259             break;

  1260           case obj_parm:

  1261             get_object();

  1262             break;

  1263           case long_parm:

  1264             get_long();

  1265             break;

  1266           case float_parm:

  1267             get_float();

  1268             break;

  1269           case double_parm:

  1270             get_double();

  1271             break;

  1272           case done_parm:

  1273             return;

  1274             break;

  1275           default:

  1276             ShouldNotReachHere();

  1277             break;

  1278         }

  1279         fingerprint >>= parameter_feature_size;

  1280       }

  1281     }

  1282   }

  1283 };

  1286 enum JNICallType {

  1287   JNI_STATIC,

  1288   JNI_VIRTUAL,

  1289   JNI_NONVIRTUAL

  1290 };

  1294 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1295   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1297   // Create object to hold arguments for the JavaCall, and associate it with

  1298   // the jni parser

  1299   ResourceMark rm(THREAD);

  1300   int number_of_parameters = method->size_of_parameters();

  1301   JavaCallArguments java_args(number_of_parameters);

  1302   args->set_java_argument_object(&java_args);

  1304   assert(method->is_static(), "method should be static");

  1306   // Fill out JavaCallArguments object

  1307   args->iterate( Fingerprinter(method).fingerprint() );

  1308   // Initialize result type

  1309   result->set_type(args->get_ret_type());

  1311   // Invoke the method. Result is returned as oop.

  1312   JavaCalls::call(result, method, &java_args, CHECK);

  1314   // Convert result

  1315   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1316     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1317   }

  1318 }

  1321 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1322   oop recv = JNIHandles::resolve(receiver);

  1323   if (recv == NULL) {

  1324     THROW(vmSymbols::java_lang_NullPointerException());

  1325   }

  1326   Handle h_recv(THREAD, recv);

  1328   int number_of_parameters;

  1329   Method* selected_method;

  1330   {

  1331     Method* m = Method::resolve_jmethod_id(method_id);

  1332     number_of_parameters = m->size_of_parameters();

  1333     Klass* holder = m->method_holder();

  1334     if (!(holder)->is_interface()) {

  1335       // non-interface call -- for that little speed boost, don't handlize

  1336       debug_only(No_Safepoint_Verifier nosafepoint;)

  1337       if (call_type == JNI_VIRTUAL) {

  1338         // jni_GetMethodID makes sure class is linked and initialized

  1339         // so m should have a valid vtable index.

  1340         assert(!m->has_itable_index(), "");

  1341         int vtbl_index = m->vtable_index();

  1342         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1343           Klass* k = h_recv->klass();

  1344           // k might be an arrayKlassOop but all vtables start at

  1345           // the same place. The cast is to avoid virtual call and assertion.

  1346           InstanceKlass *ik = (InstanceKlass*)k;

  1347           selected_method = ik->method_at_vtable(vtbl_index);

  1348         } else {

  1349           // final method

  1350           selected_method = m;

  1351         }

  1352       } else {

  1353         // JNI_NONVIRTUAL call

  1354         selected_method = m;

  1355       }

  1356     } else {

  1357       // interface call

  1358       KlassHandle h_holder(THREAD, holder);

  1360       if (call_type == JNI_VIRTUAL) {

  1361         int itbl_index = m->itable_index();

  1362         Klass* k = h_recv->klass();

  1363         selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1364       } else {

  1365         selected_method = m;

  1366       }

  1367     }

  1368   }

  1370   methodHandle method(THREAD, selected_method);

  1372   // Create object to hold arguments for the JavaCall, and associate it with

  1373   // the jni parser

  1374   ResourceMark rm(THREAD);

  1375   JavaCallArguments java_args(number_of_parameters);

  1376   args->set_java_argument_object(&java_args);

  1378   // handle arguments

  1379   assert(!method->is_static(), "method should not be static");

  1380   args->push_receiver(h_recv); // Push jobject handle

  1382   // Fill out JavaCallArguments object

  1383   args->iterate( Fingerprinter(method).fingerprint() );

  1384   // Initialize result type

  1385   result->set_type(args->get_ret_type());

  1387   // Invoke the method. Result is returned as oop.

  1388   JavaCalls::call(result, method, &java_args, CHECK);

  1390   // Convert result

  1391   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1392     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1393   }

  1394 }

  1397 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1398   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1399   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1400   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1401   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1402   return ih;

  1403 }

  1405 #ifndef USDT2

  1406 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1407 #else /* USDT2 */

  1408 DT_RETURN_MARK_DECL(AllocObject, jobject

  1409                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1410 #endif /* USDT2 */

  1412 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1413   JNIWrapper("AllocObject");

  1415 #ifndef USDT2

  1416   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1417 #else /* USDT2 */

  1418   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1419                                 env, clazz);

  1420 #endif /* USDT2 */

  1421   jobject ret = NULL;

  1422   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1424   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1425   ret = JNIHandles::make_local(env, i);

  1426   return ret;

  1427 JNI_END

  1429 #ifndef USDT2

  1430 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1431 #else /* USDT2 */

  1432 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1433                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1434 #endif /* USDT2 */

  1436 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1437   JNIWrapper("NewObjectA");

  1438 #ifndef USDT2

  1439   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1440 #else /* USDT2 */

  1441   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1442                                env, clazz, (uintptr_t) methodID);

  1443 #endif /* USDT2 */

  1444   jobject obj = NULL;

  1445   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1447   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1448   obj = JNIHandles::make_local(env, i);

  1449   JavaValue jvalue(T_VOID);

  1450   JNI_ArgumentPusherArray ap(methodID, args);

  1451   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1452   return obj;

  1453 JNI_END

  1455 #ifndef USDT2

  1456 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1457 #else /* USDT2 */

  1458 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1459                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1460 #endif /* USDT2 */

  1462 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1463   JNIWrapper("NewObjectV");

  1464 #ifndef USDT2

  1465   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1466 #else /* USDT2 */

  1467   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1468                                env, clazz, (uintptr_t) methodID);

  1469 #endif /* USDT2 */

  1470   jobject obj = NULL;

  1471   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1473   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1474   obj = JNIHandles::make_local(env, i);

  1475   JavaValue jvalue(T_VOID);

  1476   JNI_ArgumentPusherVaArg ap(methodID, args);

  1477   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1478   return obj;

  1479 JNI_END

  1481 #ifndef USDT2

  1482 DT_RETURN_MARK_DECL(NewObject, jobject);

  1483 #else /* USDT2 */

  1484 DT_RETURN_MARK_DECL(NewObject, jobject

  1485                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1486 #endif /* USDT2 */

  1488 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1489   JNIWrapper("NewObject");

  1490 #ifndef USDT2

  1491   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1492 #else /* USDT2 */

  1493   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1494                               env, clazz, (uintptr_t) methodID);

  1495 #endif /* USDT2 */

  1496   jobject obj = NULL;

  1497   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1499   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1500   obj = JNIHandles::make_local(env, i);

  1501   va_list args;

  1502   va_start(args, methodID);

  1503   JavaValue jvalue(T_VOID);

  1504   JNI_ArgumentPusherVaArg ap(methodID, args);

  1505   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1506   va_end(args);

  1507   return obj;

  1508 JNI_END

  1511 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1512   JNIWrapper("GetObjectClass");

  1513 #ifndef USDT2

  1514   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1515 #else /* USDT2 */

  1516   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1517                                    env, obj);

  1518 #endif /* USDT2 */

  1519   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1520   jclass ret =

  1521     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1522 #ifndef USDT2

  1523   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1524 #else /* USDT2 */

  1525   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1526                                     ret);

  1527 #endif /* USDT2 */

  1528   return ret;

  1529 JNI_END

  1531 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1532   JNIWrapper("IsInstanceOf");

  1533 #ifndef USDT2

  1534   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1535 #else /* USDT2 */

  1536   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1537                                  env, obj, clazz);

  1538 #endif /* USDT2 */

  1539   jboolean ret = JNI_TRUE;

  1540   if (obj != NULL) {

  1541     ret = JNI_FALSE;

  1542     Klass* k = java_lang_Class::as_Klass(

  1543       JNIHandles::resolve_non_null(clazz));

  1544     if (k != NULL) {

  1545       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1546     }

  1547   }

  1548 #ifndef USDT2

  1549   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1550 #else /* USDT2 */

  1551   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1552                                   ret);

  1553 #endif /* USDT2 */

  1554   return ret;

  1555 JNI_END

  1558 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1559                                const char *sig, bool is_static, TRAPS) {

  1560   // %%%% This code should probably just call into a method in the LinkResolver

  1561   //

  1562   // The class should have been loaded (we have an instance of the class

  1563   // passed in) so the method and signature should already be in the symbol

  1564   // table.  If they're not there, the method doesn't exist.

  1565   const char *name_to_probe = (name_str == NULL)

  1566                         ? vmSymbols::object_initializer_name()->as_C_string()

  1567                         : name_str;

  1568   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1569   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1571   if (name == NULL || signature == NULL) {

  1572     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1573   }

  1575   // Throw a NoSuchMethodError exception if we have an instance of a

  1576   // primitive java.lang.Class

  1577   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

  1578     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1579   }

  1581   KlassHandle klass(THREAD,

  1582                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1584   // Make sure class is linked and initialized before handing id's out to

  1585   // Method*s.

  1586   klass()->initialize(CHECK_NULL);

  1588   Method* m;

  1589   if (name == vmSymbols::object_initializer_name() ||

  1590       name == vmSymbols::class_initializer_name()) {

  1591     // Never search superclasses for constructors

  1592     if (klass->oop_is_instance()) {

  1593       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1594     } else {

  1595       m = NULL;

  1596     }

  1597   } else {

  1598     m = klass->lookup_method(name, signature);

  1599     if (m == NULL &&  klass->oop_is_instance()) {

  1600       m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);

  1601     }

  1602   }

  1603   if (m == NULL || (m->is_static() != is_static)) {

  1604     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1605   }

  1606   return m->jmethod_id();

  1607 }

  1610 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1611           const char *name, const char *sig))

  1612   JNIWrapper("GetMethodID");

  1613 #ifndef USDT2

  1614   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1615 #else /* USDT2 */

  1616   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1617                                 env, clazz, (char *) name, (char *) sig);

  1618 #endif /* USDT2 */

  1619   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1620 #ifndef USDT2

  1621   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1622 #else /* USDT2 */

  1623   HOTSPOT_JNI_GETMETHODID_RETURN(

  1624                                  (uintptr_t) ret);

  1625 #endif /* USDT2 */

  1626   return ret;

  1627 JNI_END

  1630 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1631           const char *name, const char *sig))

  1632   JNIWrapper("GetStaticMethodID");

  1633 #ifndef USDT2

  1634   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1635 #else /* USDT2 */

  1636   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1637                                       env, (char *) clazz, (char *) name, (char *)sig);

  1638 #endif /* USDT2 */

  1639   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1640 #ifndef USDT2

  1641   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1642 #else /* USDT2 */

  1643   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1644                                        (uintptr_t) ret);

  1645 #endif /* USDT2 */

  1646   return ret;

  1647 JNI_END

  1651 //

  1652 // Calling Methods

  1653 //

  1655 #ifndef USDT2

  1656 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1657 \

  1658   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

  1659   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\

  1660   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1661 \

  1662 JNI_ENTRY(ResultType, \

  1663           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1664   JNIWrapper("Call" XSTR(Result) "Method"); \

  1665 \

  1666   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1667   ResultType ret = 0;\

  1668   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1669                      (const ResultType&)ret);\

  1670 \

  1671   va_list args; \

  1672   va_start(args, methodID); \

  1673   JavaValue jvalue(Tag); \

  1674   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1675   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1676   va_end(args); \

  1677   ret = jvalue.get_##ResultType(); \

  1678   return ret;\

  1679 JNI_END \

  1680 \

  1681 \

  1682 JNI_ENTRY(ResultType, \

  1683           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1684   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1685 \

  1686   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1687   ResultType ret = 0;\

  1688   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1689                      (const ResultType&)ret);\

  1690 \

  1691   JavaValue jvalue(Tag); \

  1692   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1693   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1694   ret = jvalue.get_##ResultType(); \

  1695   return ret;\

  1696 JNI_END \

  1697 \

  1698 \

  1699 JNI_ENTRY(ResultType, \

  1700           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1701   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1702   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1703   ResultType ret = 0;\

  1704   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1705                      (const ResultType&)ret);\

  1706 \

  1707   JavaValue jvalue(Tag); \

  1708   JNI_ArgumentPusherArray ap(methodID, args); \

  1709   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1710   ret = jvalue.get_##ResultType(); \

  1711   return ret;\

  1712 JNI_END

  1714 // the runtime type of subword integral basic types is integer

  1715 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1716 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1717 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1718 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1720 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1721 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1722 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1723 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1724 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1726 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1727 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1728 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1730 #else /* USDT2 */

  1732 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1733                           , EntryProbe, ReturnProbe)    \

  1734 \

  1735   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1736                           , ReturnProbe);                          \

  1737 \

  1738 JNI_ENTRY(ResultType, \

  1739           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1740   JNIWrapper("Call" XSTR(Result) "Method"); \

  1741 \

  1742   EntryProbe; \

  1743   ResultType ret = 0;\

  1744   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1745                      (const ResultType&)ret);\

  1746 \

  1747   va_list args; \

  1748   va_start(args, methodID); \

  1749   JavaValue jvalue(Tag); \

  1750   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1751   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1752   va_end(args); \

  1753   ret = jvalue.get_##ResultType(); \

  1754   return ret;\

  1755 JNI_END

  1757 // the runtime type of subword integral basic types is integer

  1758 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1759                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1760                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1761 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

  1762                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1763                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1764 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

  1765                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1766                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1767 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

  1768                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1769                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1771 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1772                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1773                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1774 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

  1775                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1776                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1777 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

  1778                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1779                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1780 // Float and double probes don't return value because dtrace doesn't currently support it

  1781 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1782                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1783                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1784 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

  1785                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1786                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1788 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1789                           , EntryProbe, ReturnProbe)    \

  1790 \

  1791   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1792                           , ReturnProbe);                          \

  1793 \

  1794 JNI_ENTRY(ResultType, \

  1795           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1796   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1797 \

  1798   EntryProbe;\

  1799   ResultType ret = 0;\

  1800   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1801                      (const ResultType&)ret);\

  1802 \

  1803   JavaValue jvalue(Tag); \

  1804   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1805   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1806   ret = jvalue.get_##ResultType(); \

  1807   return ret;\

  1808 JNI_END

  1810 // the runtime type of subword integral basic types is integer

  1811 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

  1812                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1813                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1814 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

  1815                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1816                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1817 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

  1818                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1819                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1820 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

  1821                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1822                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1824 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1825                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1826                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1827 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

  1828                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1829                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1830 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

  1831                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1832                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1833 // Float and double probes don't return value because dtrace doesn't currently support it

  1834 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1835                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1836                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1837 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

  1838                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1839                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1841 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1842                           , EntryProbe, ReturnProbe)    \

  1843 \

  1844   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1845                           , ReturnProbe);                          \

  1846 \

  1847 JNI_ENTRY(ResultType, \

  1848           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1849   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1850   EntryProbe; \

  1851   ResultType ret = 0;\

  1852   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1853                      (const ResultType&)ret);\

  1854 \

  1855   JavaValue jvalue(Tag); \

  1856   JNI_ArgumentPusherArray ap(methodID, args); \

  1857   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1858   ret = jvalue.get_##ResultType(); \

  1859   return ret;\

  1860 JNI_END

  1862 // the runtime type of subword integral basic types is integer

  1863 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

  1864                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1865                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1866 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

  1867                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1868                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1869 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

  1870                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1871                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1872 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

  1873                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1874                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1876 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1877                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1878                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1879 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

  1880                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1881                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1882 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

  1883                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1884                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1885 // Float and double probes don't return value because dtrace doesn't currently support it

  1886 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1887                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1888                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1889 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1890                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1891                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1893 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1894 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1895 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1897 #endif /* USDT2 */

  1899 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1900   JNIWrapper("CallVoidMethod");

  1901 #ifndef USDT2

  1902   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1903 #else /* USDT2 */

  1904   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1905                                    env, obj, (uintptr_t) methodID);

  1906 #endif /* USDT2 */

  1907   DT_VOID_RETURN_MARK(CallVoidMethod);

  1909   va_list args;

  1910   va_start(args, methodID);

  1911   JavaValue jvalue(T_VOID);

  1912   JNI_ArgumentPusherVaArg ap(methodID, args);

  1913   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1914   va_end(args);

  1915 JNI_END

  1918 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1919   JNIWrapper("CallVoidMethodV");

  1920 #ifndef USDT2

  1921   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1922 #else /* USDT2 */

  1923   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1924                                     env, obj, (uintptr_t) methodID);

  1925 #endif /* USDT2 */

  1926   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1928   JavaValue jvalue(T_VOID);

  1929   JNI_ArgumentPusherVaArg ap(methodID, args);

  1930   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1931 JNI_END

  1934 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1935   JNIWrapper("CallVoidMethodA");

  1936 #ifndef USDT2

  1937   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1938 #else /* USDT2 */

  1939   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1940                                     env, obj, (uintptr_t) methodID);

  1941 #endif /* USDT2 */

  1942   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1944   JavaValue jvalue(T_VOID);

  1945   JNI_ArgumentPusherArray ap(methodID, args);

  1946   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1947 JNI_END

  1950 #ifndef USDT2

  1951 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1952 \

  1953   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

  1954   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\

  1955   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1956 \

  1957 JNI_ENTRY(ResultType, \

  1958           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1959   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1960 \

  1961   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1962   ResultType ret;\

  1963   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1964                      (const ResultType&)ret);\

  1965 \

  1966   va_list args; \

  1967   va_start(args, methodID); \

  1968   JavaValue jvalue(Tag); \

  1969   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1970   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1971   va_end(args); \

  1972   ret = jvalue.get_##ResultType(); \

  1973   return ret;\

  1974 JNI_END \

  1975 \

  1976 JNI_ENTRY(ResultType, \

  1977           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  1978   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  1979   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  1980   ResultType ret;\

  1981   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  1982                      (const ResultType&)ret);\

  1983 \

  1984   JavaValue jvalue(Tag); \

  1985   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1986   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1987   ret = jvalue.get_##ResultType(); \

  1988   return ret;\

  1989 JNI_END \

  1990 \

  1991 JNI_ENTRY(ResultType, \

  1992           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  1993   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  1994   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  1995   ResultType ret;\

  1996   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  1997                      (const ResultType&)ret);\

  1998 \

  1999   JavaValue jvalue(Tag); \

  2000   JNI_ArgumentPusherArray ap(methodID, args); \

  2001   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2002   ret = jvalue.get_##ResultType(); \

  2003   return ret;\

  2004 JNI_END

  2006 // the runtime type of subword integral basic types is integer

  2007 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2008 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2009 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2010 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2012 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2013 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2014 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2015 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2016 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2019 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2020 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2021 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2023 #else /* USDT2 */

  2025 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2026                                     , EntryProbe, ReturnProbe)      \

  2027 \

  2028   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2029                           , ReturnProbe);\

  2030 \

  2031 JNI_ENTRY(ResultType, \

  2032           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2033   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2034 \

  2035   EntryProbe;\

  2036   ResultType ret;\

  2037   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2038                      (const ResultType&)ret);\

  2039 \

  2040   va_list args; \

  2041   va_start(args, methodID); \

  2042   JavaValue jvalue(Tag); \

  2043   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2044   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2045   va_end(args); \

  2046   ret = jvalue.get_##ResultType(); \

  2047   return ret;\

  2048 JNI_END

  2050 // the runtime type of subword integral basic types is integer

  2051 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2052                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2053                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2054 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

  2055                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2056                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2057 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

  2058                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2059                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2060 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

  2061                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2062                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2064 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2065                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2066                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2067 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

  2068                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2069                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2070 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

  2071                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2072 // Float and double probes don't return value because dtrace doesn't currently support it

  2073                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2074 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2075                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2076                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2077 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

  2078                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2079                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2081 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2082                                     , EntryProbe, ReturnProbe)      \

  2083 \

  2084   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2085                           , ReturnProbe);\

  2086 \

  2087 JNI_ENTRY(ResultType, \

  2088           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2089   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2090 \

  2091   EntryProbe;\

  2092   ResultType ret;\

  2093   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2094                      (const ResultType&)ret);\

  2095 \

  2096   JavaValue jvalue(Tag); \

  2097   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2098   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2099   ret = jvalue.get_##ResultType(); \

  2100   return ret;\

  2101 JNI_END

  2103 // the runtime type of subword integral basic types is integer

  2104 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

  2105                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2106                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2107 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

  2108                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2109                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2110 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

  2111                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2112                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2113 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

  2114                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2115                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2117 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2118                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2119                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2120 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

  2121                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2122                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2123 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

  2124                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2125 // Float and double probes don't return value because dtrace doesn't currently support it

  2126                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2127 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2128                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2129                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2130 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

  2131                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2132                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2134 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2135                                     , EntryProbe, ReturnProbe)      \

  2136 \

  2137   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2138                           , ReturnProbe);\

  2139 \

  2140 JNI_ENTRY(ResultType, \

  2141           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2142   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2143 \

  2144   EntryProbe;\

  2145   ResultType ret;\

  2146   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2147                      (const ResultType&)ret);\

  2148 \

  2149   JavaValue jvalue(Tag); \

  2150   JNI_ArgumentPusherArray ap(methodID, args); \

  2151   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2152   ret = jvalue.get_##ResultType(); \

  2153   return ret;\

  2154 JNI_END

  2156 // the runtime type of subword integral basic types is integer

  2157 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

  2158                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2159                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2160 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

  2161                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2162                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2163 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

  2164                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2165                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2166 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

  2167                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2168                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2170 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2171                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2172                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2173 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

  2174                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2175                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2176 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

  2177                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2178 // Float and double probes don't return value because dtrace doesn't currently support it

  2179                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2180 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2181                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2182                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2183 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2184                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2185                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2187 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2188                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2189 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2190                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2191 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2192                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2193 #endif /* USDT2 */

  2195 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2196   JNIWrapper("CallNonvirtualVoidMethod");

  2198 #ifndef USDT2

  2199   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2200                env, obj, cls, methodID);

  2201 #else /* USDT2 */

  2202   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2203                env, obj, cls, (uintptr_t) methodID);

  2204 #endif /* USDT2 */

  2205   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2207   va_list args;

  2208   va_start(args, methodID);

  2209   JavaValue jvalue(T_VOID);

  2210   JNI_ArgumentPusherVaArg ap(methodID, args);

  2211   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2212   va_end(args);

  2213 JNI_END

  2216 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2217   JNIWrapper("CallNonvirtualVoidMethodV");

  2219 #ifndef USDT2

  2220   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2221                env, obj, cls, methodID);

  2222 #else /* USDT2 */

  2223   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2224                env, obj, cls, (uintptr_t) methodID);

  2225 #endif /* USDT2 */

  2226   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2228   JavaValue jvalue(T_VOID);

  2229   JNI_ArgumentPusherVaArg ap(methodID, args);

  2230   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2231 JNI_END

  2234 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2235   JNIWrapper("CallNonvirtualVoidMethodA");

  2236 #ifndef USDT2

  2237   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2238                 env, obj, cls, methodID);

  2239 #else /* USDT2 */

  2240   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2241                 env, obj, cls, (uintptr_t) methodID);

  2242 #endif /* USDT2 */

  2243   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2244   JavaValue jvalue(T_VOID);

  2245   JNI_ArgumentPusherArray ap(methodID, args);

  2246   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2247 JNI_END

  2250 #ifndef USDT2

  2251 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2252 \

  2253   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

  2254   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\

  2255   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2256 \

  2257 JNI_ENTRY(ResultType, \

  2258           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2259   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2260 \

  2261   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2262   ResultType ret = 0;\

  2263   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2264                      (const ResultType&)ret);\

  2265 \

  2266   va_list args; \

  2267   va_start(args, methodID); \

  2268   JavaValue jvalue(Tag); \

  2269   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2270   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2271   va_end(args); \

  2272   ret = jvalue.get_##ResultType(); \

  2273   return ret;\

  2274 JNI_END \

  2275 \

  2276 JNI_ENTRY(ResultType, \

  2277           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2278   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2279   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2280   ResultType ret = 0;\

  2281   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2282                      (const ResultType&)ret);\

  2283 \

  2284   JavaValue jvalue(Tag); \

  2285   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2286   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2287   ret = jvalue.get_##ResultType(); \

  2288   return ret;\

  2289 JNI_END \

  2290 \

  2291 JNI_ENTRY(ResultType, \

  2292           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2293   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2294   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2295   ResultType ret = 0;\

  2296   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2297                      (const ResultType&)ret);\

  2298 \

  2299   JavaValue jvalue(Tag); \

  2300   JNI_ArgumentPusherArray ap(methodID, args); \

  2301   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2302   ret = jvalue.get_##ResultType(); \

  2303   return ret;\

  2304 JNI_END

  2306 // the runtime type of subword integral basic types is integer

  2307 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2308 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2309 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2310 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2312 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2313 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2314 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2315 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2316 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2319 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2320 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2321 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2323 #else /* USDT2 */

  2325 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2326                                 , EntryProbe, ResultProbe) \

  2327 \

  2328   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2329                           , ResultProbe);                               \

  2330 \

  2331 JNI_ENTRY(ResultType, \

  2332           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2333   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2334 \

  2335   EntryProbe; \

  2336   ResultType ret = 0;\

  2337   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2338                      (const ResultType&)ret);\

  2339 \

  2340   va_list args; \

  2341   va_start(args, methodID); \

  2342   JavaValue jvalue(Tag); \

  2343   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2344   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2345   va_end(args); \

  2346   ret = jvalue.get_##ResultType(); \

  2347   return ret;\

  2348 JNI_END

  2350 // the runtime type of subword integral basic types is integer

  2351 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2352                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2353                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2354 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

  2355                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2356                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2357 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

  2358                         , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2359                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2360 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

  2361                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2362                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2364 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2365                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2366                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2367 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

  2368                         , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2369                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2370 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

  2371                         , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2372                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2373 // Float and double probes don't return value because dtrace doesn't currently support it

  2374 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2375                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2376                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2377 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

  2378                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2379                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2381 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2382                                 , EntryProbe, ResultProbe) \

  2383 \

  2384   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2385                           , ResultProbe);                               \

  2386 \

  2387 JNI_ENTRY(ResultType, \

  2388           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2389   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2390 \

  2391   EntryProbe; \

  2392   ResultType ret = 0;\

  2393   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2394                      (const ResultType&)ret);\

  2395 \

  2396   JavaValue jvalue(Tag); \

  2397   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2398   /* Make sure class is initialized before trying to invoke its method */ \

  2399   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2400   k()->initialize(CHECK_0); \

  2401   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2402   va_end(args); \

  2403   ret = jvalue.get_##ResultType(); \

  2404   return ret;\

  2405 JNI_END

  2407 // the runtime type of subword integral basic types is integer

  2408 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

  2409                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2410                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2411 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

  2412                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2413                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2414 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

  2415                         , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2416                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2417 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

  2418                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2419                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2421 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2422                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2423                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2424 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

  2425                         , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2426                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2427 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

  2428                         , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2429                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2430 // Float and double probes don't return value because dtrace doesn't currently support it

  2431 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2432                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2433                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2434 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

  2435                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2436                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2438 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2439                                 , EntryProbe, ResultProbe) \

  2440 \

  2441   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2442                           , ResultProbe);                               \

  2443 \

  2444 JNI_ENTRY(ResultType, \

  2445           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2446   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2447 \

  2448   EntryProbe; \

  2449   ResultType ret = 0;\

  2450   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2451                      (const ResultType&)ret);\

  2452 \

  2453   JavaValue jvalue(Tag); \

  2454   JNI_ArgumentPusherArray ap(methodID, args); \

  2455   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2456   ret = jvalue.get_##ResultType(); \

  2457   return ret;\

  2458 JNI_END

  2460 // the runtime type of subword integral basic types is integer

  2461 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

  2462                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2463                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2464 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

  2465                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2466                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2467 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

  2468                         , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2469                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2470 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

  2471                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2472                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2474 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2475                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2476                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2477 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

  2478                         , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2479                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2480 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

  2481                         , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2482                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2483 // Float and double probes don't return value because dtrace doesn't currently support it

  2484 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2485                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2486                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2487 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2488                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2489                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2491 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2492                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2493 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2494                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2495 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2496                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2497 #endif /* USDT2 */

  2499 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2500   JNIWrapper("CallStaticVoidMethod");

  2501 #ifndef USDT2

  2502   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2503 #else /* USDT2 */

  2504   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2505                                          env, cls, (uintptr_t) methodID);

  2506 #endif /* USDT2 */

  2507   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2509   va_list args;

  2510   va_start(args, methodID);

  2511   JavaValue jvalue(T_VOID);

  2512   JNI_ArgumentPusherVaArg ap(methodID, args);

  2513   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2514   va_end(args);

  2515 JNI_END

  2518 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2519   JNIWrapper("CallStaticVoidMethodV");

  2520 #ifndef USDT2

  2521   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2522 #else /* USDT2 */

  2523   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2524                                           env, cls, (uintptr_t) methodID);

  2525 #endif /* USDT2 */

  2526   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2528   JavaValue jvalue(T_VOID);

  2529   JNI_ArgumentPusherVaArg ap(methodID, args);

  2530   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2531 JNI_END

  2534 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2535   JNIWrapper("CallStaticVoidMethodA");

  2536 #ifndef USDT2

  2537   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2538 #else /* USDT2 */

  2539   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2540                                           env, cls, (uintptr_t) methodID);

  2541 #endif /* USDT2 */

  2542   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2544   JavaValue jvalue(T_VOID);

  2545   JNI_ArgumentPusherArray ap(methodID, args);

  2546   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2547 JNI_END

  2550 //

  2551 // Accessing Fields

  2552 //

  2555 #ifndef USDT2

  2556 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2557 #else /* USDT2 */

  2558 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2559                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2560 #endif /* USDT2 */

  2562 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2563           const char *name, const char *sig))

  2564   JNIWrapper("GetFieldID");

  2565 #ifndef USDT2

  2566   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2567 #else /* USDT2 */

  2568   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2569                                env, clazz, (char *) name, (char *) sig);

  2570 #endif /* USDT2 */

  2571   jfieldID ret = 0;

  2572   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2574   // The class should have been loaded (we have an instance of the class

  2575   // passed in) so the field and signature should already be in the symbol

  2576   // table.  If they're not there, the field doesn't exist.

  2577   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2578   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2579   if (fieldname == NULL || signame == NULL) {

  2580     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2581   }

  2582   KlassHandle k(THREAD,

  2583                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2584   // Make sure class is initialized before handing id's out to fields

  2585   k()->initialize(CHECK_NULL);

  2587   fieldDescriptor fd;

  2588   if (!k()->oop_is_instance() ||

  2589       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2590     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2591   }

  2593   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2594   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2595   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2596   return ret;

  2597 JNI_END

  2600 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2601   JNIWrapper("GetObjectField");

  2602 #ifndef USDT2

  2603   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2604 #else /* USDT2 */

  2605   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2606                                    env, obj, (uintptr_t) fieldID);

  2607 #endif /* USDT2 */

  2608   oop o = JNIHandles::resolve_non_null(obj);

  2609   Klass* k = o->klass();

  2610   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2611   // Keep JVMTI addition small and only check enabled flag here.

  2612   // jni_GetField_probe() assumes that is okay to create handles.

  2613   if (JvmtiExport::should_post_field_access()) {

  2614     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2615   }

  2616   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2617 #if INCLUDE_ALL_GCS

  2618   // If G1 is enabled and we are accessing the value of the referent

  2619   // field in a reference object then we need to register a non-null

  2620   // referent with the SATB barrier.

  2621   if (UseG1GC) {

  2622     bool needs_barrier = false;

  2624     if (ret != NULL &&

  2625         offset == java_lang_ref_Reference::referent_offset &&

  2626         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2627       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2628       needs_barrier = true;

  2629     }

  2631     if (needs_barrier) {

  2632       oop referent = JNIHandles::resolve(ret);

  2633       G1SATBCardTableModRefBS::enqueue(referent);

  2634     }

  2635   }

  2636 #endif // INCLUDE_ALL_GCS

  2637 #ifndef USDT2

  2638   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2639 #else /* USDT2 */

  2640 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2641                                   ret);

  2642 #endif /* USDT2 */

  2643   return ret;

  2644 JNI_END

  2647 #ifndef USDT2

  2648 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2649 \

  2650   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2651 \

  2652 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2653   JNIWrapper("Get" XSTR(Result) "Field"); \

  2654 \

  2655   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2656   Return ret = 0;\

  2657   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2658 \

  2659   oop o = JNIHandles::resolve_non_null(obj); \

  2660   Klass* k = o->klass(); \

  2661   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2662   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2663   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2664   /* and creates a ResetNoHandleMark.                                   */ \

  2665   if (JvmtiExport::should_post_field_access()) { \

  2666     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2667   } \

  2668   ret = o->Fieldname##_field(offset); \

  2669   return ret; \

  2670 JNI_END

  2672 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2673 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2674 DEFINE_GETFIELD(jchar,    char,   Char)

  2675 DEFINE_GETFIELD(jshort,   short,  Short)

  2676 DEFINE_GETFIELD(jint,     int,    Int)

  2677 DEFINE_GETFIELD(jlong,    long,   Long)

  2678 DEFINE_GETFIELD(jfloat,   float,  Float)

  2679 DEFINE_GETFIELD(jdouble,  double, Double)

  2681 #else /* USDT2 */

  2683 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2684   , EntryProbe, ReturnProbe) \

  2685 \

  2686   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2687   , ReturnProbe); \

  2688 \

  2689 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2690   JNIWrapper("Get" XSTR(Result) "Field"); \

  2691 \

  2692   EntryProbe; \

  2693   Return ret = 0;\

  2694   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2695 \

  2696   oop o = JNIHandles::resolve_non_null(obj); \

  2697   Klass* k = o->klass(); \

  2698   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2699   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2700   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2701   /* and creates a ResetNoHandleMark.                                   */ \

  2702   if (JvmtiExport::should_post_field_access()) { \

  2703     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2704   } \

  2705   ret = o->Fieldname##_field(offset); \

  2706   return ret; \

  2707 JNI_END

  2709 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2710                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2711                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2712 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2713                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2714                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2715 DEFINE_GETFIELD(jchar,    char,   Char

  2716                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2717                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2718 DEFINE_GETFIELD(jshort,   short,  Short

  2719                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2720                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2721 DEFINE_GETFIELD(jint,     int,    Int

  2722                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2723                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2724 DEFINE_GETFIELD(jlong,    long,   Long

  2725                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2726                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2727 // Float and double probes don't return value because dtrace doesn't currently support it

  2728 DEFINE_GETFIELD(jfloat,   float,  Float

  2729                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2730                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2731 DEFINE_GETFIELD(jdouble,  double, Double

  2732                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2733                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2734 #endif /* USDT2 */

  2736 address jni_GetBooleanField_addr() {

  2737   return (address)jni_GetBooleanField;

  2738 }

  2739 address jni_GetByteField_addr() {

  2740   return (address)jni_GetByteField;

  2741 }

  2742 address jni_GetCharField_addr() {

  2743   return (address)jni_GetCharField;

  2744 }

  2745 address jni_GetShortField_addr() {

  2746   return (address)jni_GetShortField;

  2747 }

  2748 address jni_GetIntField_addr() {

  2749   return (address)jni_GetIntField;

  2750 }

  2751 address jni_GetLongField_addr() {

  2752   return (address)jni_GetLongField;

  2753 }

  2754 address jni_GetFloatField_addr() {

  2755   return (address)jni_GetFloatField;

  2756 }

  2757 address jni_GetDoubleField_addr() {

  2758   return (address)jni_GetDoubleField;

  2759 }

  2761 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2762   JNIWrapper("SetObjectField");

  2763 #ifndef USDT2

  2764   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2765 #else /* USDT2 */

  2766   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2767                                    env, obj, (uintptr_t) fieldID, value);

  2768 #endif /* USDT2 */

  2769   oop o = JNIHandles::resolve_non_null(obj);

  2770   Klass* k = o->klass();

  2771   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2772   // Keep JVMTI addition small and only check enabled flag here.

  2773   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2774   // and creates a ResetNoHandleMark.

  2775   if (JvmtiExport::should_post_field_modification()) {

  2776     jvalue field_value;

  2777     field_value.l = value;

  2778     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2779   }

  2780   o->obj_field_put(offset, JNIHandles::resolve(value));

  2781 #ifndef USDT2

  2782   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2783 #else /* USDT2 */

  2784   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2785 );

  2786 #endif /* USDT2 */

  2787 JNI_END

  2789 #ifndef USDT2

  2790 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2791 \

  2792 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2793   JNIWrapper("Set" XSTR(Result) "Field"); \

  2794 \

  2795   FP_SELECT_##Result( \

  2796     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2797     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2798 \

  2799   oop o = JNIHandles::resolve_non_null(obj); \

  2800   Klass* k = o->klass(); \

  2801   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2802   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2803   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2804   /* and creates a ResetNoHandleMark.                                   */ \

  2805   if (JvmtiExport::should_post_field_modification()) { \

  2806     jvalue field_value; \

  2807     field_value.unionType = value; \

  2808     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2809   } \

  2810   o->Fieldname##_field_put(offset, value); \

  2811   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2812 JNI_END

  2814 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2815 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2816 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2817 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2818 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2819 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2820 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2821 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2823 #else /* USDT2 */

  2825 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2826                         , EntryProbe, ReturnProbe) \

  2827 \

  2828 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2829   JNIWrapper("Set" XSTR(Result) "Field"); \

  2830 \

  2831   EntryProbe; \

  2832 \

  2833   oop o = JNIHandles::resolve_non_null(obj); \

  2834   Klass* k = o->klass(); \

  2835   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2836   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2837   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2838   /* and creates a ResetNoHandleMark.                                   */ \

  2839   if (JvmtiExport::should_post_field_modification()) { \

  2840     jvalue field_value; \

  2841     field_value.unionType = value; \

  2842     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2843   } \

  2844   o->Fieldname##_field_put(offset, value); \

  2845   ReturnProbe; \

  2846 JNI_END

  2848 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2849                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2850                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2851 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2852                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2853                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2854 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2855                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2856                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2857 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2858                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2859                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2860 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

  2861                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2862                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2863 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

  2864                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2865                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2866 // Float and double probes don't return value because dtrace doesn't currently support it

  2867 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2868                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2869                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2870 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2871                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2872                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2873 #endif /* USDT2 */

  2875 #ifndef USDT2

  2876 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2877 #else /* USDT2 */

  2878 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2879                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2880 #endif /* USDT2 */

  2882 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2883   JNIWrapper("ToReflectedField");

  2884 #ifndef USDT2

  2885   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2886                 env, cls, fieldID, isStatic);

  2887 #else /* USDT2 */

  2888   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2889                 env, cls, (uintptr_t) fieldID, isStatic);

  2890 #endif /* USDT2 */

  2891   jobject ret = NULL;

  2892   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2894   fieldDescriptor fd;

  2895   bool found = false;

  2896   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2898   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2900   if (isStatic) {

  2901     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2902     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2903     assert(id->is_static_field_id(), "invalid static field id");

  2904     found = id->find_local_field(&fd);

  2905   } else {

  2906     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2907     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2908     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2909   }

  2910   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2911   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2912   ret = JNIHandles::make_local(env, reflected);

  2913   return ret;

  2914 JNI_END

  2917 //

  2918 // Accessing Static Fields

  2919 //

  2920 #ifndef USDT2

  2921 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2922 #else /* USDT2 */

  2923 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2924                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2925 #endif /* USDT2 */

  2927 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2928           const char *name, const char *sig))

  2929   JNIWrapper("GetStaticFieldID");

  2930 #ifndef USDT2

  2931   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2932 #else /* USDT2 */

  2933   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2934                                      env, clazz, (char *) name, (char *) sig);

  2935 #endif /* USDT2 */

  2936   jfieldID ret = NULL;

  2937   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2939   // The class should have been loaded (we have an instance of the class

  2940   // passed in) so the field and signature should already be in the symbol

  2941   // table.  If they're not there, the field doesn't exist.

  2942   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2943   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2944   if (fieldname == NULL || signame == NULL) {

  2945     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2946   }

  2947   KlassHandle k(THREAD,

  2948                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2949   // Make sure class is initialized before handing id's out to static fields

  2950   k()->initialize(CHECK_NULL);

  2952   fieldDescriptor fd;

  2953   if (!k()->oop_is_instance() ||

  2954       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2955     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2956   }

  2958   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2959   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2960   debug_only(id->set_is_static_field_id();)

  2962   debug_only(id->verify(fd.field_holder()));

  2964   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2965   return ret;

  2966 JNI_END

  2969 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2970   JNIWrapper("GetStaticObjectField");

  2971 #ifndef USDT2

  2972   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  2973 #else /* USDT2 */

  2974   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  2975                                          env, clazz, (uintptr_t) fieldID);

  2976 #endif /* USDT2 */

  2977 #if INCLUDE_JNI_CHECK

  2978   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  2979 #endif // INCLUDE_JNI_CHECK

  2980   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2981   assert(id->is_static_field_id(), "invalid static field id");

  2982   // Keep JVMTI addition small and only check enabled flag here.

  2983   // jni_GetField_probe() assumes that is okay to create handles.

  2984   if (JvmtiExport::should_post_field_access()) {

  2985     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  2986   }

  2987   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  2988 #ifndef USDT2

  2989   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  2990 #else /* USDT2 */

  2991   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  2992                                           ret);

  2993 #endif /* USDT2 */

  2994   return ret;

  2995 JNI_END

  2997 #ifndef USDT2

  2998 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  2999 \

  3000   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3001 \

  3002 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3003   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3004   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3005   Return ret = 0;\

  3006   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3007                      (const Return&)ret);\

  3008   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3009   assert(id->is_static_field_id(), "invalid static field id"); \

  3010   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3011   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3012   if (JvmtiExport::should_post_field_access()) { \

  3013     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3014   } \

  3015   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3016   return ret;\

  3017 JNI_END

  3019 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3020 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3021 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3022 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3023 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3024 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3025 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3026 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3028 #else /* USDT2 */

  3030 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3031                               , EntryProbe, ReturnProbe) \

  3032 \

  3033   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3034                           , ReturnProbe);                                          \

  3035 \

  3036 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3037   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3038   EntryProbe; \

  3039   Return ret = 0;\

  3040   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3041                      (const Return&)ret);\

  3042   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3043   assert(id->is_static_field_id(), "invalid static field id"); \

  3044   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3045   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3046   if (JvmtiExport::should_post_field_access()) { \

  3047     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3048   } \

  3049   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3050   return ret;\

  3051 JNI_END

  3053 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3054                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3055 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3056                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3057 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3058                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3059 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3060                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3061 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3062                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3063 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3064                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3065 // Float and double probes don't return value because dtrace doesn't currently support it

  3066 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3067                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3068 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3069                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3070 #endif /* USDT2 */

  3072 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3073   JNIWrapper("SetStaticObjectField");

  3074 #ifndef USDT2

  3075   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3076 #else /* USDT2 */

  3077  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3078                                         env, clazz, (uintptr_t) fieldID, value);

  3079 #endif /* USDT2 */

  3080   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3081   assert(id->is_static_field_id(), "invalid static field id");

  3082   // Keep JVMTI addition small and only check enabled flag here.

  3083   // jni_SetField_probe() assumes that is okay to create handles.

  3084   if (JvmtiExport::should_post_field_modification()) {

  3085     jvalue field_value;

  3086     field_value.l = value;

  3087     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3088   }

  3089   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3090 #ifndef USDT2

  3091   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3092 #else /* USDT2 */

  3093   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3094                                           );

  3095 #endif /* USDT2 */

  3096 JNI_END

  3099 #ifndef USDT2

  3100 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3101 \

  3102 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3103   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3104   FP_SELECT_##Result( \

  3105      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3106      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3107 \

  3108   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3109   assert(id->is_static_field_id(), "invalid static field id"); \

  3110   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3111   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3112   if (JvmtiExport::should_post_field_modification()) { \

  3113     jvalue field_value; \

  3114     field_value.unionType = value; \

  3115     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3116   } \

  3117   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3118   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3119 JNI_END

  3121 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3122 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3123 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3124 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3125 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3126 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3127 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3128 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3130 #else /* USDT2 */

  3132 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3133                               , EntryProbe, ReturnProbe) \

  3134 \

  3135 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3136   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3137   EntryProbe; \

  3138 \

  3139   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3140   assert(id->is_static_field_id(), "invalid static field id"); \

  3141   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3142   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3143   if (JvmtiExport::should_post_field_modification()) { \

  3144     jvalue field_value; \

  3145     field_value.unionType = value; \

  3146     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3147   } \

  3148   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3149   ReturnProbe;\

  3150 JNI_END

  3152 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3153                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3154                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3155 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3156                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3157                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3158 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3159                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3160                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3161 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3162                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3163                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3164 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3165                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3166                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3167 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3168                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3169                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3170 // Float and double probes don't return value because dtrace doesn't currently support it

  3171 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3172                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3173                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3174 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3175                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3176                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3177 #endif /* USDT2 */

  3179 //

  3180 // String Operations

  3181 //

  3183 // Unicode Interface

  3185 #ifndef USDT2

  3186 DT_RETURN_MARK_DECL(NewString, jstring);

  3187 #else /* USDT2 */

  3188 DT_RETURN_MARK_DECL(NewString, jstring

  3189                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3190 #endif /* USDT2 */

  3192 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3193   JNIWrapper("NewString");

  3194 #ifndef USDT2

  3195   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3196 #else /* USDT2 */

  3197  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3198                              env, (uint16_t *) unicodeChars, len);

  3199 #endif /* USDT2 */

  3200   jstring ret = NULL;

  3201   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3202   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3203   ret = (jstring) JNIHandles::make_local(env, string);

  3204   return ret;

  3205 JNI_END

  3208 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3209   JNIWrapper("GetStringLength");

  3210 #ifndef USDT2

  3211   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3212 #else /* USDT2 */

  3213   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3214                                     env, string);

  3215 #endif /* USDT2 */

  3216   jsize ret = 0;

  3217   oop s = JNIHandles::resolve_non_null(string);

  3218   if (java_lang_String::value(s) != NULL) {

  3219     ret = java_lang_String::length(s);

  3220   }

  3221 #ifndef USDT2

  3222   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3223 #else /* USDT2 */

  3224  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3225                                     ret);

  3226 #endif /* USDT2 */

  3227   return ret;

  3228 JNI_END

  3231 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3232   JNIEnv *env, jstring string, jboolean *isCopy))

  3233   JNIWrapper("GetStringChars");

  3234 #ifndef USDT2

  3235   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3236 #else /* USDT2 */

  3237  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3238                                   env, string, (uintptr_t *) isCopy);

  3239 #endif /* USDT2 */

  3240   jchar* buf = NULL;

  3241   oop s = JNIHandles::resolve_non_null(string);

  3242   typeArrayOop s_value = java_lang_String::value(s);

  3243   if (s_value != NULL) {

  3244     int s_len = java_lang_String::length(s);

  3245     int s_offset = java_lang_String::offset(s);

  3246     buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3247     /* JNI Specification states return NULL on OOM */

  3248     if (buf != NULL) {

  3249       if (s_len > 0) {

  3250         memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3251       }

  3252       buf[s_len] = 0;

  3253       //%note jni_5

  3254       if (isCopy != NULL) {

  3255         *isCopy = JNI_TRUE;

  3256       }

  3257     }

  3258   }

  3259 #ifndef USDT2

  3260   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3261 #else /* USDT2 */

  3262   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3263                                     buf);

  3264 #endif /* USDT2 */

  3265   return buf;

  3266 JNI_END

  3269 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3270   JNIWrapper("ReleaseStringChars");

  3271 #ifndef USDT2

  3272   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3273 #else /* USDT2 */

  3274   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3275                                        env, str, (uint16_t *) chars);

  3276 #endif /* USDT2 */

  3277   //%note jni_6

  3278   if (chars != NULL) {

  3279     // Since String objects are supposed to be immutable, don't copy any

  3280     // new data back.  A bad user will have to go after the char array.

  3281     FreeHeap((void*) chars);

  3282   }

  3283 #ifndef USDT2

  3284   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3285 #else /* USDT2 */

  3286   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3287 );

  3288 #endif /* USDT2 */

  3289 JNI_END

  3292 // UTF Interface

  3294 #ifndef USDT2

  3295 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3296 #else /* USDT2 */

  3297 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3298                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3299 #endif /* USDT2 */

  3301 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3302   JNIWrapper("NewStringUTF");

  3303 #ifndef USDT2

  3304   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3305 #else /* USDT2 */

  3306   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3307                                  env, (char *) bytes);

  3308 #endif /* USDT2 */

  3309   jstring ret;

  3310   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3312   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3313   ret = (jstring) JNIHandles::make_local(env, result);

  3314   return ret;

  3315 JNI_END

  3318 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3319   JNIWrapper("GetStringUTFLength");

  3320 #ifndef USDT2

  3321   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3322 #else /* USDT2 */

  3323  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3324                                       env, string);

  3325 #endif /* USDT2 */

  3326   jsize ret = 0;

  3327   oop java_string = JNIHandles::resolve_non_null(string);

  3328   if (java_lang_String::value(java_string) != NULL) {

  3329     ret = java_lang_String::utf8_length(java_string);

  3330   }

  3331 #ifndef USDT2

  3332   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3333 #else /* USDT2 */

  3334   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3335                                         ret);

  3336 #endif /* USDT2 */

  3337   return ret;

  3338 JNI_END

  3341 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3342   JNIWrapper("GetStringUTFChars");

  3343 #ifndef USDT2

  3344   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3345 #else /* USDT2 */

  3346  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3347                                      env, string, (uintptr_t *) isCopy);

  3348 #endif /* USDT2 */

  3349   char* result = NULL;

  3350   oop java_string = JNIHandles::resolve_non_null(string);

  3351   if (java_lang_String::value(java_string) != NULL) {

  3352     size_t length = java_lang_String::utf8_length(java_string);

  3353     /* JNI Specification states return NULL on OOM */

  3354     result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);

  3355     if (result != NULL) {

  3356       java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3357       if (isCopy != NULL) {

  3358         *isCopy = JNI_TRUE;

  3359       }

  3360     }

  3361   }

  3362 #ifndef USDT2

  3363   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3364 #else /* USDT2 */

  3365  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3366                                       result);

  3367 #endif /* USDT2 */

  3368   return result;

  3369 JNI_END

  3372 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3373   JNIWrapper("ReleaseStringUTFChars");

  3374 #ifndef USDT2

  3375   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3376 #else /* USDT2 */

  3377  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3378                                          env, str, (char *) chars);

  3379 #endif /* USDT2 */

  3380   if (chars != NULL) {

  3381     FreeHeap((char*) chars);

  3382   }

  3383 #ifndef USDT2

  3384   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3385 #else /* USDT2 */

  3386 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3387 );

  3388 #endif /* USDT2 */

  3389 JNI_END

  3392 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3393   JNIWrapper("GetArrayLength");

  3394 #ifndef USDT2

  3395   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3396 #else /* USDT2 */

  3397  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3398                                   env, array);

  3399 #endif /* USDT2 */

  3400   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3401   assert(a->is_array(), "must be array");

  3402   jsize ret = a->length();

  3403 #ifndef USDT2

  3404   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3405 #else /* USDT2 */

  3406  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3407                                    ret);

  3408 #endif /* USDT2 */

  3409   return ret;

  3410 JNI_END

  3413 //

  3414 // Object Array Operations

  3415 //

  3417 #ifndef USDT2

  3418 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3419 #else /* USDT2 */

  3420 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3421                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3422 #endif /* USDT2 */

  3424 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3425   JNIWrapper("NewObjectArray");

  3426 #ifndef USDT2

  3427   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3428 #else /* USDT2 */

  3429  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3430                                   env, length, elementClass, initialElement);

  3431 #endif /* USDT2 */

  3432   jobjectArray ret = NULL;

  3433   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3434   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3435   Klass* ako = ek()->array_klass(CHECK_NULL);

  3436   KlassHandle ak = KlassHandle(THREAD, ako);

  3437   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3438   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3439   oop initial_value = JNIHandles::resolve(initialElement);

  3440   if (initial_value != NULL) {  // array already initialized with NULL

  3441     for (int index = 0; index < length; index++) {

  3442       result->obj_at_put(index, initial_value);

  3443     }

  3444   }

  3445   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3446   return ret;

  3447 JNI_END

  3449 #ifndef USDT2

  3450 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3451 #else /* USDT2 */

  3452 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3453                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3454 #endif /* USDT2 */

  3456 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3457   JNIWrapper("GetObjectArrayElement");

  3458 #ifndef USDT2

  3459   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3460 #else /* USDT2 */

  3461  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3462                                          env, array, index);

  3463 #endif /* USDT2 */

  3464   jobject ret = NULL;

  3465   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3466   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3467   if (a->is_within_bounds(index)) {

  3468     ret = JNIHandles::make_local(env, a->obj_at(index));

  3469     return ret;

  3470   } else {

  3471     char buf[jintAsStringSize];

  3472     sprintf(buf, "%d", index);

  3473     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3474   }

  3475 JNI_END

  3477 #ifndef USDT2

  3478 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3479 #else /* USDT2 */

  3480 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3481                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3482 #endif /* USDT2 */

  3484 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3485   JNIWrapper("SetObjectArrayElement");

  3486 #ifndef USDT2

  3487   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3488 #else /* USDT2 */

  3489  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3490                                          env, array, index, value);

  3491 #endif /* USDT2 */

  3492   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3494   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3495   oop v = JNIHandles::resolve(value);

  3496   if (a->is_within_bounds(index)) {

  3497     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3498       a->obj_at_put(index, v);

  3499     } else {

  3500       THROW(vmSymbols::java_lang_ArrayStoreException());

  3501     }

  3502   } else {

  3503     char buf[jintAsStringSize];

  3504     sprintf(buf, "%d", index);

  3505     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3506   }

  3507 JNI_END

  3510 #ifndef USDT2

  3511 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3512 \

  3513   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3514 \

  3515 JNI_ENTRY(Return, \

  3516           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3517   JNIWrapper("New" XSTR(Result) "Array"); \

  3518   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3519   Return ret = NULL;\

  3520   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3521 \

  3522   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3523   ret = (Return) JNIHandles::make_local(env, obj); \

  3524   return ret;\

  3525 JNI_END

  3527 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3528 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3529 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3530 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3531 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3532 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3533 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3534 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3536 #else /* USDT2 */

  3538 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3539                               ,EntryProbe,ReturnProbe)  \

  3540 \

  3541   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3542                       , ReturnProbe); \

  3543 \

  3544 JNI_ENTRY(Return, \

  3545           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3546   JNIWrapper("New" XSTR(Result) "Array"); \

  3547   EntryProbe; \

  3548   Return ret = NULL;\

  3549   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3550 \

  3551   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3552   ret = (Return) JNIHandles::make_local(env, obj); \

  3553   return ret;\

  3554 JNI_END

  3556 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3557                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3558                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3559 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3560                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3561                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3562 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3563                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3564                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3565 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3566                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3567                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3568 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3569                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3570                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3571 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3572                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3573                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3574 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3575                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3576                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3577 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3578                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3579                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3580 #endif /* USDT2 */

  3582 // Return an address which will fault if the caller writes to it.

  3584 static char* get_bad_address() {

  3585   static char* bad_address = NULL;

  3586   if (bad_address == NULL) {

  3587     size_t size = os::vm_allocation_granularity();

  3588     bad_address = os::reserve_memory(size);

  3589     if (bad_address != NULL) {

  3590       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3591                          /*is_committed*/false);

  3592     }

  3593   }

  3594   return bad_address;

  3595 }

  3598 #ifndef USDT2

  3599 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3600 \

  3601 JNI_QUICK_ENTRY(ElementType*, \

  3602           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3603   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3604   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3605   /* allocate an chunk of memory in c land */ \

  3606   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3607   ElementType* result; \

  3608   int len = a->length(); \

  3609   if (len == 0) { \

  3610     /* Empty array: legal but useless, can't return NULL. \

  3611      * Return a pointer to something useless. \

  3612      * Avoid asserts in typeArrayOop. */ \

  3613     result = (ElementType*)get_bad_address(); \

  3614   } else { \

  3615     /* JNI Specification states return NULL on OOM */                    \

  3616     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3617     if (result != NULL) {                                                \

  3618       /* copy the array to the c chunk */                                \

  3619       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3620       if (isCopy) {                                                      \

  3621         *isCopy = JNI_TRUE;                                              \

  3622       }                                                                  \

  3623     }                                                                    \

  3624   } \

  3625   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3626   return result; \

  3627 JNI_END

  3629 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3630 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3631 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3632 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3633 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3634 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3635 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3636 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3638 #else /* USDT2 */

  3640 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3641                                       , EntryProbe, ReturnProbe) \

  3642 \

  3643 JNI_QUICK_ENTRY(ElementType*, \

  3644           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3645   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3646   EntryProbe; \

  3647   /* allocate an chunk of memory in c land */ \

  3648   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3649   ElementType* result; \

  3650   int len = a->length(); \

  3651   if (len == 0) { \

  3652     /* Empty array: legal but useless, can't return NULL. \

  3653      * Return a pointer to something useless. \

  3654      * Avoid asserts in typeArrayOop. */ \

  3655     result = (ElementType*)get_bad_address(); \

  3656   } else { \

  3657     /* JNI Specification states return NULL on OOM */                    \

  3658     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3659     if (result != NULL) {                                                \

  3660       /* copy the array to the c chunk */                                \

  3661       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3662       if (isCopy) {                                                      \

  3663         *isCopy = JNI_TRUE;                                              \

  3664       }                                                                  \

  3665     }                                                                    \

  3666   } \

  3667   ReturnProbe; \

  3668   return result; \

  3669 JNI_END

  3671 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3672                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3673                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3674 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3675                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3676                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3677 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3678                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3679                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3680 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3681                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3682                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3683 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3684                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3685                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3686 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3687                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3688                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3689 // Float and double probes don't return value because dtrace doesn't currently support it

  3690 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3691                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3692                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3693 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3694                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3695                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3696 #endif /* USDT2 */

  3698 #ifndef USDT2

  3699 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3700 \

  3701 JNI_QUICK_ENTRY(void, \

  3702           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3703                                              ElementType *buf, jint mode)) \

  3704   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3705   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3706   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3707   int len = a->length(); \

  3708   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3709     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3710       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3711     } \

  3712     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3713       FreeHeap(buf); \

  3714     } \

  3715   } \

  3716   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3717 JNI_END

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3722 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3723 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3724 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3725 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3726 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3728 #else /* USDT2 */

  3730 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3731                                           , EntryProbe, ReturnProbe);\

  3732 \

  3733 JNI_QUICK_ENTRY(void, \

  3734           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3735                                              ElementType *buf, jint mode)) \

  3736   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3737   EntryProbe; \

  3738   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3739   int len = a->length(); \

  3740   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3741     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3742       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3743     } \

  3744     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3745       FreeHeap(buf); \

  3746     } \

  3747   } \

  3748   ReturnProbe; \

  3749 JNI_END

  3751 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3752                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3753                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3754 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3755                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3756                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3757 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3758                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3759                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3760 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3761                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3762                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3763 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3764                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3765                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3766 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3767                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3768                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3769 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3770                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3771                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3772 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3773                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3774                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3775 #endif /* USDT2 */

  3777 #ifndef USDT2

  3778 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3779   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3780 \

  3781 JNI_ENTRY(void, \

  3782 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3783              jsize len, ElementType *buf)) \

  3784   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3785   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3786   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3787   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3788   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3789     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3790   } else { \

  3791     if (len > 0) { \

  3792       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3793       memcpy((u_char*) buf, \

  3794              (u_char*) src->Tag##_at_addr(start), \

  3795              len << sc);                          \

  3796     } \

  3797   } \

  3798 JNI_END

  3800 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3801 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3802 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3803 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3804 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3805 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3806 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3807 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3809 #else /* USDT2 */

  3811 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3812                                     , EntryProbe, ReturnProbe); \

  3813   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3814                            , ReturnProbe); \

  3815 \

  3816 JNI_ENTRY(void, \

  3817 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3818              jsize len, ElementType *buf)) \

  3819   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3820   EntryProbe; \

  3821   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3822   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3823   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3824     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3825   } else { \

  3826     if (len > 0) { \

  3827       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3828       memcpy((u_char*) buf, \

  3829              (u_char*) src->Tag##_at_addr(start), \

  3830              len << sc);                          \

  3831     } \

  3832   } \

  3833 JNI_END

  3835 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3836                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3837                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3838 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3839                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3840                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3841 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3842                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3843                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3844 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3845                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3846                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3847 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3848                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3849                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3850 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3851                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3852                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3853 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3854                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3855                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3856 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3857                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3858                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3859 #endif /* USDT2 */

  3861 #ifndef USDT2

  3862 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3863   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3864 \

  3865 JNI_ENTRY(void, \

  3866 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3867              jsize len, const ElementType *buf)) \

  3868   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3869   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3870   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3871   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3872   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3873     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3874   } else { \

  3875     if (len > 0) { \

  3876       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3877       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3878              (u_char*) buf, \

  3879              len << sc);    \

  3880     } \

  3881   } \

  3882 JNI_END

  3884 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3885 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3886 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3887 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3888 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3889 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3890 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3891 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3893 #else /* USDT2 */

  3895 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3896                                     , EntryProbe, ReturnProbe); \

  3897   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3898                            ,ReturnProbe);           \

  3899 \

  3900 JNI_ENTRY(void, \

  3901 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3902              jsize len, const ElementType *buf)) \

  3903   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3904   EntryProbe; \

  3905   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3906   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3907   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3908     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3909   } else { \

  3910     if (len > 0) { \

  3911       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3912       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3913              (u_char*) buf, \

  3914              len << sc);    \

  3915     } \

  3916   } \

  3917 JNI_END

  3919 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3920                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3921                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3922 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3923                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3924                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3925 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3926                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3927                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3928 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3929                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3930                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3931 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3932                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3933                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3934 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3935                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3936                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3937 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3938                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3939                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3940 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3941                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3942                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3943 #endif /* USDT2 */

  3946 //

  3947 // Interception of natives

  3948 //

  3950 // The RegisterNatives call being attempted tried to register with a method that

  3951 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3952 // to see if the native method is now wrapped with the prefixes.  See the

  3953 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3954 static Method* find_prefixed_native(KlassHandle k,

  3955                                       Symbol* name, Symbol* signature, TRAPS) {

  3956 #if INCLUDE_JVMTI

  3957   ResourceMark rm(THREAD);

  3958   Method* method;

  3959   int name_len = name->utf8_length();

  3960   char* name_str = name->as_utf8();

  3961   int prefix_count;

  3962   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3963   for (int i = 0; i < prefix_count; i++) {

  3964     char* prefix = prefixes[i];

  3965     int prefix_len = (int)strlen(prefix);

  3967     // try adding this prefix to the method name and see if it matches another method name

  3968     int trial_len = name_len + prefix_len;

  3969     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3970     strcpy(trial_name_str, prefix);

  3971     strcat(trial_name_str, name_str);

  3972     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3973     if (trial_name == NULL) {

  3974       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3975     }

  3976     method = k()->lookup_method(trial_name, signature);

  3977     if (method == NULL) {

  3978       continue; // signature doesn't match, try the next prefix

  3979     }

  3980     if (method->is_native()) {

  3981       method->set_is_prefixed_native();

  3982       return method; // wahoo, we found a prefixed version of the method, return it

  3983     }

  3984     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3985     name_len = trial_len;

  3986     name_str = trial_name_str;

  3987   }

  3988 #endif // INCLUDE_JVMTI

  3989   return NULL; // not found

  3990 }

  3992 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3993   Method* method = k()->lookup_method(name, signature);

  3994   if (method == NULL) {

  3995     ResourceMark rm;

  3996     stringStream st;

  3997     st.print("Method %s name or signature does not match",

  3998              Method::name_and_sig_as_C_string(k(), name, signature));

  3999     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4000   }

  4001   if (!method->is_native()) {

  4002     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  4003     method = find_prefixed_native(k, name, signature, THREAD);

  4004     if (method == NULL) {

  4005       ResourceMark rm;

  4006       stringStream st;

  4007       st.print("Method %s is not declared as native",

  4008                Method::name_and_sig_as_C_string(k(), name, signature));

  4009       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4010     }

  4011   }

  4013   if (entry != NULL) {

  4014     method->set_native_function(entry,

  4015       Method::native_bind_event_is_interesting);

  4016   } else {

  4017     method->clear_native_function();

  4018   }

  4019   if (PrintJNIResolving) {

  4020     ResourceMark rm(THREAD);

  4021     tty->print_cr("[Registering JNI native method %s.%s]",

  4022       method->method_holder()->external_name(),

  4023       method->name()->as_C_string());

  4024   }

  4025   return true;

  4026 }

  4028 #ifndef USDT2

  4029 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4030 #else /* USDT2 */

  4031 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4032                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4033 #endif /* USDT2 */

  4035 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4036                                     const JNINativeMethod *methods,

  4037                                     jint nMethods))

  4038   JNIWrapper("RegisterNatives");

  4039 #ifndef USDT2

  4040   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4041 #else /* USDT2 */

  4042   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4043                                     env, clazz, (void *) methods, nMethods);

  4044 #endif /* USDT2 */

  4045   jint ret = 0;

  4046   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4048   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4050   for (int index = 0; index < nMethods; index++) {

  4051     const char* meth_name = methods[index].name;

  4052     const char* meth_sig = methods[index].signature;

  4053     int meth_name_len = (int)strlen(meth_name);

  4055     // The class should have been loaded (we have an instance of the class

  4056     // passed in) so the method and signature should already be in the symbol

  4057     // table.  If they're not there, the method doesn't exist.

  4058     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4059     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4061     if (name == NULL || signature == NULL) {

  4062       ResourceMark rm;

  4063       stringStream st;

  4064       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4065       // Must return negative value on failure

  4066       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4067     }

  4069     bool res = register_native(h_k, name, signature,

  4070                                (address) methods[index].fnPtr, THREAD);

  4071     if (!res) {

  4072       ret = -1;

  4073       break;

  4074     }

  4075   }

  4076   return ret;

  4077 JNI_END

  4080 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4081   JNIWrapper("UnregisterNatives");

  4082 #ifndef USDT2

  4083   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4084 #else /* USDT2 */

  4085  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4086                                      env, clazz);

  4087 #endif /* USDT2 */

  4088   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4089   //%note jni_2

  4090   if (k->oop_is_instance()) {

  4091     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4092       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4093       if (m->is_native()) {

  4094         m->clear_native_function();

  4095         m->set_signature_handler(NULL);

  4096       }

  4097     }

  4098   }

  4099 #ifndef USDT2

  4100   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4101 #else /* USDT2 */

  4102  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4103                                       0);

  4104 #endif /* USDT2 */

  4105   return 0;

  4106 JNI_END

  4108 //

  4109 // Monitor functions

  4110 //

  4112 #ifndef USDT2

  4113 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4114 #else /* USDT2 */

  4115 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4116                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4117 #endif /* USDT2 */

  4119 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4120 #ifndef USDT2

  4121   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4122 #else /* USDT2 */

  4123  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4124                                 env, jobj);

  4125 #endif /* USDT2 */

  4126   jint ret = JNI_ERR;

  4127   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4129   // If the object is null, we can't do anything with it

  4130   if (jobj == NULL) {

  4131     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4132   }

  4134   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4135   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4136   ret = JNI_OK;

  4137   return ret;

  4138 JNI_END

  4140 #ifndef USDT2

  4141 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4142 #else /* USDT2 */

  4143 DT_RETURN_MARK_DECL(MonitorExit, jint

  4144                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4145 #endif /* USDT2 */

  4147 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4148 #ifndef USDT2

  4149   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4150 #else /* USDT2 */

  4151  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4152                                env, jobj);

  4153 #endif /* USDT2 */

  4154   jint ret = JNI_ERR;

  4155   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4157   // Don't do anything with a null object

  4158   if (jobj == NULL) {

  4159     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4160   }

  4162   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4163   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4165   ret = JNI_OK;

  4166   return ret;

  4167 JNI_END

  4169 //

  4170 // Extensions

  4171 //

  4173 #ifndef USDT2

  4174 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4175 #else /* USDT2 */

  4176 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4177                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4178 #endif /* USDT2 */

  4180 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4181   JNIWrapper("GetStringRegion");

  4182 #ifndef USDT2

  4183   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4184 #else /* USDT2 */

  4185  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4186                                    env, string, start, len, buf);

  4187 #endif /* USDT2 */

  4188   DT_VOID_RETURN_MARK(GetStringRegion);

  4189   oop s = JNIHandles::resolve_non_null(string);

  4190   int s_len = java_lang_String::length(s);

  4191   if (start < 0 || len < 0 || start + len > s_len) {

  4192     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4193   } else {

  4194     if (len > 0) {

  4195       int s_offset = java_lang_String::offset(s);

  4196       typeArrayOop s_value = java_lang_String::value(s);

  4197       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4198     }

  4199   }

  4200 JNI_END

  4202 #ifndef USDT2

  4203 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4204 #else /* USDT2 */

  4205 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4206                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4207 #endif /* USDT2 */

  4209 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4210   JNIWrapper("GetStringUTFRegion");

  4211 #ifndef USDT2

  4212   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4213 #else /* USDT2 */

  4214  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4215                                       env, string, start, len, buf);

  4216 #endif /* USDT2 */

  4217   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4218   oop s = JNIHandles::resolve_non_null(string);

  4219   int s_len = java_lang_String::length(s);

  4220   if (start < 0 || len < 0 || start + len > s_len) {

  4221     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4222   } else {

  4223     //%note jni_7

  4224     if (len > 0) {

  4225       ResourceMark rm(THREAD);

  4226       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4227       int utf_len = (int)strlen(utf_region);

  4228       memcpy(buf, utf_region, utf_len);

  4229       buf[utf_len] = 0;

  4230     } else {

  4231       // JDK null-terminates the buffer even in len is zero

  4232       if (buf != NULL) {

  4233         buf[0] = 0;

  4234       }

  4235     }

  4236   }

  4237 JNI_END

  4240 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4241   JNIWrapper("GetPrimitiveArrayCritical");

  4242 #ifndef USDT2

  4243   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4244 #else /* USDT2 */

  4245  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4246                                              env, array, (uintptr_t *) isCopy);

  4247 #endif /* USDT2 */

  4248   GC_locker::lock_critical(thread);

  4249   if (isCopy != NULL) {

  4250     *isCopy = JNI_FALSE;

  4251   }

  4252   oop a = JNIHandles::resolve_non_null(array);

  4253   assert(a->is_array(), "just checking");

  4254   BasicType type;

  4255   if (a->is_objArray()) {

  4256     type = T_OBJECT;

  4257   } else {

  4258     type = TypeArrayKlass::cast(a->klass())->element_type();

  4259   }

  4260   void* ret = arrayOop(a)->base(type);

  4261 #ifndef USDT2

  4262   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4263 #else /* USDT2 */

  4264  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4265                                               ret);

  4266 #endif /* USDT2 */

  4267   return ret;

  4268 JNI_END

  4271 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4272   JNIWrapper("ReleasePrimitiveArrayCritical");

  4273 #ifndef USDT2

  4274   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4275 #else /* USDT2 */

  4276   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4277                                                   env, array, carray, mode);

  4278 #endif /* USDT2 */

  4279   // The array, carray and mode arguments are ignored

  4280   GC_locker::unlock_critical(thread);

  4281 #ifndef USDT2

  4282   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4283 #else /* USDT2 */

  4284 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4285 );

  4286 #endif /* USDT2 */

  4287 JNI_END

  4290 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4291   JNIWrapper("GetStringCritical");

  4292 #ifndef USDT2

  4293   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4294 #else /* USDT2 */

  4295   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4296                                       env, string, (uintptr_t *) isCopy);

  4297 #endif /* USDT2 */

  4298   GC_locker::lock_critical(thread);

  4299   if (isCopy != NULL) {

  4300     *isCopy = JNI_FALSE;

  4301   }

  4302   oop s = JNIHandles::resolve_non_null(string);

  4303   int s_len = java_lang_String::length(s);

  4304   typeArrayOop s_value = java_lang_String::value(s);

  4305   int s_offset = java_lang_String::offset(s);

  4306   const jchar* ret;

  4307   if (s_len > 0) {

  4308     ret = s_value->char_at_addr(s_offset);

  4309   } else {

  4310     ret = (jchar*) s_value->base(T_CHAR);

  4311   }

  4312 #ifndef USDT2

  4313   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4314 #else /* USDT2 */

  4315  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4316                                       (uint16_t *) ret);

  4317 #endif /* USDT2 */

  4318   return ret;

  4319 JNI_END

  4322 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4323   JNIWrapper("ReleaseStringCritical");

  4324 #ifndef USDT2

  4325   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4326 #else /* USDT2 */

  4327   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4328                                           env, str, (uint16_t *) chars);

  4329 #endif /* USDT2 */

  4330   // The str and chars arguments are ignored

  4331   GC_locker::unlock_critical(thread);

  4332 #ifndef USDT2

  4333   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4334 #else /* USDT2 */

  4335 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4336 );

  4337 #endif /* USDT2 */

  4338 JNI_END

  4341 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4342   JNIWrapper("jni_NewWeakGlobalRef");

  4343 #ifndef USDT2

  4344   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4345 #else /* USDT2 */

  4346  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4347                                     env, ref);

  4348 #endif /* USDT2 */

  4349   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4350   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4351 #ifndef USDT2

  4352   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4353 #else /* USDT2 */

  4354  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4355                                      ret);

  4356 #endif /* USDT2 */

  4357   return ret;

  4358 JNI_END

  4360 // Must be JNI_ENTRY (with HandleMark)

  4361 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4362   JNIWrapper("jni_DeleteWeakGlobalRef");

  4363 #ifndef USDT2

  4364   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4365 #else /* USDT2 */

  4366   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4367                                         env, ref);

  4368 #endif /* USDT2 */

  4369   JNIHandles::destroy_weak_global(ref);

  4370 #ifndef USDT2

  4371   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4372 #else /* USDT2 */

  4373   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4374                                          );

  4375 #endif /* USDT2 */

  4376 JNI_END

  4379 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4380   JNIWrapper("jni_ExceptionCheck");

  4381 #ifndef USDT2

  4382   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4383 #else /* USDT2 */

  4384  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4385                                   env);

  4386 #endif /* USDT2 */

  4387   jni_check_async_exceptions(thread);

  4388   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4389 #ifndef USDT2

  4390   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4391 #else /* USDT2 */

  4392  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4393                                    ret);

  4394 #endif /* USDT2 */

  4395   return ret;

  4396 JNI_END

  4399 // Initialization state for three routines below relating to

  4400 // java.nio.DirectBuffers

  4401 static          jint directBufferSupportInitializeStarted = 0;

  4402 static volatile jint directBufferSupportInitializeEnded   = 0;

  4403 static volatile jint directBufferSupportInitializeFailed  = 0;

  4404 static jclass    bufferClass                 = NULL;

  4405 static jclass    directBufferClass           = NULL;

  4406 static jclass    directByteBufferClass       = NULL;

  4407 static jmethodID directByteBufferConstructor = NULL;

  4408 static jfieldID  directBufferAddressField    = NULL;

  4409 static jfieldID  bufferCapacityField         = NULL;

  4411 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4412   Handle loader;            // null (bootstrap) loader

  4413   Handle protection_domain; // null protection domain

  4415   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4416   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4418   if (TraceClassResolution && result != NULL) {

  4419     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4420   }

  4421   return result;

  4422 }

  4424 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4425 // circumvent any security checks that would be done by jni_FindClass.

  4426 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4427 {

  4428   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4429   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4430   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4431   return true;

  4432 }

  4433 JNI_END

  4436 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4437   if (directBufferSupportInitializeFailed) {

  4438     return false;

  4439   }

  4441   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4442     if (!lookupDirectBufferClasses(env)) {

  4443       directBufferSupportInitializeFailed = 1;

  4444       return false;

  4445     }

  4447     // Make global references for these

  4448     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4449     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4450     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4452     // Get needed field and method IDs

  4453     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4454     if (env->ExceptionCheck()) {

  4455       env->ExceptionClear();

  4456       directBufferSupportInitializeFailed = 1;

  4457       return false;

  4458     }

  4459     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4460     if (env->ExceptionCheck()) {

  4461       env->ExceptionClear();

  4462       directBufferSupportInitializeFailed = 1;

  4463       return false;

  4464     }

  4465     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4466     if (env->ExceptionCheck()) {

  4467       env->ExceptionClear();

  4468       directBufferSupportInitializeFailed = 1;

  4469       return false;

  4470     }

  4472     if ((directByteBufferConstructor == NULL) ||

  4473         (directBufferAddressField    == NULL) ||

  4474         (bufferCapacityField         == NULL)) {

  4475       directBufferSupportInitializeFailed = 1;

  4476       return false;

  4477     }

  4479     directBufferSupportInitializeEnded = 1;

  4480   } else {

  4481     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4482       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4483       // os::sleep which requires the VM state transition. On other platforms, it

  4484       // is not necessary. The following call to change the VM state is purposely

  4485       // put inside the loop to avoid potential deadlock when multiple threads

  4486       // try to call this method. See 6791815 for more details.

  4487       ThreadInVMfromNative tivn(thread);

  4488       os::yield_all();

  4489     }

  4490   }

  4492   return !directBufferSupportInitializeFailed;

  4493 }

  4495 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4496 {

  4497   // thread_from_jni_environment() will block if VM is gone.

  4498   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4500   JNIWrapper("jni_NewDirectByteBuffer");

  4501 #ifndef USDT2

  4502   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4503 #else /* USDT2 */

  4504  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4505                                        env, address, capacity);

  4506 #endif /* USDT2 */

  4508   if (!directBufferSupportInitializeEnded) {

  4509     if (!initializeDirectBufferSupport(env, thread)) {

  4510 #ifndef USDT2

  4511       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4512 #else /* USDT2 */

  4513       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4514                                              NULL);

  4515 #endif /* USDT2 */

  4516       return NULL;

  4517     }

  4518   }

  4520   // Being paranoid about accidental sign extension on address

  4521   jlong addr = (jlong) ((uintptr_t) address);

  4522   // NOTE that package-private DirectByteBuffer constructor currently

  4523   // takes int capacity

  4524   jint  cap  = (jint)  capacity;

  4525   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4526 #ifndef USDT2

  4527   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4528 #else /* USDT2 */

  4529   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4530                                          ret);

  4531 #endif /* USDT2 */

  4532   return ret;

  4533 }

  4535 #ifndef USDT2

  4536 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4537 #else /* USDT2 */

  4538 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4539                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4540 #endif /* USDT2 */

  4542 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4543 {

  4544   // thread_from_jni_environment() will block if VM is gone.

  4545   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4547   JNIWrapper("jni_GetDirectBufferAddress");

  4548 #ifndef USDT2

  4549   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4550 #else /* USDT2 */

  4551   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4552                                            env, buf);

  4553 #endif /* USDT2 */

  4554   void* ret = NULL;

  4555   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4557   if (!directBufferSupportInitializeEnded) {

  4558     if (!initializeDirectBufferSupport(env, thread)) {

  4559       return 0;

  4560     }

  4561   }

  4563   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4564     return 0;

  4565   }

  4567   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4568   return ret;

  4569 }

  4571 #ifndef USDT2

  4572 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4573 #else /* USDT2 */

  4574 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4575                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4576 #endif /* USDT2 */

  4578 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4579 {

  4580   // thread_from_jni_environment() will block if VM is gone.

  4581   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4583   JNIWrapper("jni_GetDirectBufferCapacity");

  4584 #ifndef USDT2

  4585   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4586 #else /* USDT2 */

  4587   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4588                                             env, buf);

  4589 #endif /* USDT2 */

  4590   jlong ret = -1;

  4591   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4593   if (!directBufferSupportInitializeEnded) {

  4594     if (!initializeDirectBufferSupport(env, thread)) {

  4595       ret = 0;

  4596       return ret;

  4597     }

  4598   }

  4600   if (buf == NULL) {

  4601     return -1;

  4602   }

  4604   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4605     return -1;

  4606   }

  4608   // NOTE that capacity is currently an int in the implementation

  4609   ret = env->GetIntField(buf, bufferCapacityField);

  4610   return ret;

  4611 }

  4614 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4615   JNIWrapper("GetVersion");

  4616 #ifndef USDT2

  4617   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4618 #else /* USDT2 */

  4619   HOTSPOT_JNI_GETVERSION_ENTRY(

  4620                                env);

  4621 #endif /* USDT2 */

  4622 #ifndef USDT2

  4623   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4624 #else /* USDT2 */

  4625   HOTSPOT_JNI_GETVERSION_RETURN(

  4626                                 CurrentVersion);

  4627 #endif /* USDT2 */

  4628   return CurrentVersion;

  4629 JNI_END

  4631 extern struct JavaVM_ main_vm;

  4633 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4634   JNIWrapper("jni_GetJavaVM");

  4635 #ifndef USDT2

  4636   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4637 #else /* USDT2 */

  4638   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4639                               env, (void **) vm);

  4640 #endif /* USDT2 */

  4641   *vm  = (JavaVM *)(&main_vm);

  4642 #ifndef USDT2

  4643   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4644 #else /* USDT2 */

  4645   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4646                                JNI_OK);

  4647 #endif /* USDT2 */

  4648   return JNI_OK;

  4649 JNI_END

  4651 // Structure containing all jni functions

  4652 struct JNINativeInterface_ jni_NativeInterface = {

  4653     NULL,

  4654     NULL,

  4655     NULL,

  4657     NULL,

  4659     jni_GetVersion,

  4661     jni_DefineClass,

  4662     jni_FindClass,

  4664     jni_FromReflectedMethod,

  4665     jni_FromReflectedField,

  4667     jni_ToReflectedMethod,

  4669     jni_GetSuperclass,

  4670     jni_IsAssignableFrom,

  4672     jni_ToReflectedField,

  4674     jni_Throw,

  4675     jni_ThrowNew,

  4676     jni_ExceptionOccurred,

  4677     jni_ExceptionDescribe,

  4678     jni_ExceptionClear,

  4679     jni_FatalError,

  4681     jni_PushLocalFrame,

  4682     jni_PopLocalFrame,

  4684     jni_NewGlobalRef,

  4685     jni_DeleteGlobalRef,

  4686     jni_DeleteLocalRef,

  4687     jni_IsSameObject,

  4689     jni_NewLocalRef,

  4690     jni_EnsureLocalCapacity,

  4692     jni_AllocObject,

  4693     jni_NewObject,

  4694     jni_NewObjectV,

  4695     jni_NewObjectA,

  4697     jni_GetObjectClass,

  4698     jni_IsInstanceOf,

  4700     jni_GetMethodID,

  4702     jni_CallObjectMethod,

  4703     jni_CallObjectMethodV,

  4704     jni_CallObjectMethodA,

  4705     jni_CallBooleanMethod,

  4706     jni_CallBooleanMethodV,

  4707     jni_CallBooleanMethodA,

  4708     jni_CallByteMethod,

  4709     jni_CallByteMethodV,

  4710     jni_CallByteMethodA,

  4711     jni_CallCharMethod,

  4712     jni_CallCharMethodV,

  4713     jni_CallCharMethodA,

  4714     jni_CallShortMethod,

  4715     jni_CallShortMethodV,

  4716     jni_CallShortMethodA,

  4717     jni_CallIntMethod,

  4718     jni_CallIntMethodV,

  4719     jni_CallIntMethodA,

  4720     jni_CallLongMethod,

  4721     jni_CallLongMethodV,

  4722     jni_CallLongMethodA,

  4723     jni_CallFloatMethod,

  4724     jni_CallFloatMethodV,

  4725     jni_CallFloatMethodA,

  4726     jni_CallDoubleMethod,

  4727     jni_CallDoubleMethodV,

  4728     jni_CallDoubleMethodA,

  4729     jni_CallVoidMethod,

  4730     jni_CallVoidMethodV,

  4731     jni_CallVoidMethodA,

  4733     jni_CallNonvirtualObjectMethod,

  4734     jni_CallNonvirtualObjectMethodV,

  4735     jni_CallNonvirtualObjectMethodA,

  4736     jni_CallNonvirtualBooleanMethod,

  4737     jni_CallNonvirtualBooleanMethodV,

  4738     jni_CallNonvirtualBooleanMethodA,

  4739     jni_CallNonvirtualByteMethod,

  4740     jni_CallNonvirtualByteMethodV,

  4741     jni_CallNonvirtualByteMethodA,

  4742     jni_CallNonvirtualCharMethod,

  4743     jni_CallNonvirtualCharMethodV,

  4744     jni_CallNonvirtualCharMethodA,

  4745     jni_CallNonvirtualShortMethod,

  4746     jni_CallNonvirtualShortMethodV,

  4747     jni_CallNonvirtualShortMethodA,

  4748     jni_CallNonvirtualIntMethod,

  4749     jni_CallNonvirtualIntMethodV,

  4750     jni_CallNonvirtualIntMethodA,

  4751     jni_CallNonvirtualLongMethod,

  4752     jni_CallNonvirtualLongMethodV,

  4753     jni_CallNonvirtualLongMethodA,

  4754     jni_CallNonvirtualFloatMethod,

  4755     jni_CallNonvirtualFloatMethodV,

  4756     jni_CallNonvirtualFloatMethodA,

  4757     jni_CallNonvirtualDoubleMethod,

  4758     jni_CallNonvirtualDoubleMethodV,

  4759     jni_CallNonvirtualDoubleMethodA,

  4760     jni_CallNonvirtualVoidMethod,

  4761     jni_CallNonvirtualVoidMethodV,

  4762     jni_CallNonvirtualVoidMethodA,

  4764     jni_GetFieldID,

  4766     jni_GetObjectField,

  4767     jni_GetBooleanField,

  4768     jni_GetByteField,

  4769     jni_GetCharField,

  4770     jni_GetShortField,

  4771     jni_GetIntField,

  4772     jni_GetLongField,

  4773     jni_GetFloatField,

  4774     jni_GetDoubleField,

  4776     jni_SetObjectField,

  4777     jni_SetBooleanField,

  4778     jni_SetByteField,

  4779     jni_SetCharField,

  4780     jni_SetShortField,

  4781     jni_SetIntField,

  4782     jni_SetLongField,

  4783     jni_SetFloatField,

  4784     jni_SetDoubleField,

  4786     jni_GetStaticMethodID,

  4788     jni_CallStaticObjectMethod,

  4789     jni_CallStaticObjectMethodV,

  4790     jni_CallStaticObjectMethodA,

  4791     jni_CallStaticBooleanMethod,

  4792     jni_CallStaticBooleanMethodV,

  4793     jni_CallStaticBooleanMethodA,

  4794     jni_CallStaticByteMethod,

  4795     jni_CallStaticByteMethodV,

  4796     jni_CallStaticByteMethodA,

  4797     jni_CallStaticCharMethod,

  4798     jni_CallStaticCharMethodV,

  4799     jni_CallStaticCharMethodA,

  4800     jni_CallStaticShortMethod,

  4801     jni_CallStaticShortMethodV,

  4802     jni_CallStaticShortMethodA,

  4803     jni_CallStaticIntMethod,

  4804     jni_CallStaticIntMethodV,

  4805     jni_CallStaticIntMethodA,

  4806     jni_CallStaticLongMethod,

  4807     jni_CallStaticLongMethodV,

  4808     jni_CallStaticLongMethodA,

  4809     jni_CallStaticFloatMethod,

  4810     jni_CallStaticFloatMethodV,

  4811     jni_CallStaticFloatMethodA,

  4812     jni_CallStaticDoubleMethod,

  4813     jni_CallStaticDoubleMethodV,

  4814     jni_CallStaticDoubleMethodA,

  4815     jni_CallStaticVoidMethod,

  4816     jni_CallStaticVoidMethodV,

  4817     jni_CallStaticVoidMethodA,

  4819     jni_GetStaticFieldID,

  4821     jni_GetStaticObjectField,

  4822     jni_GetStaticBooleanField,

  4823     jni_GetStaticByteField,

  4824     jni_GetStaticCharField,

  4825     jni_GetStaticShortField,

  4826     jni_GetStaticIntField,

  4827     jni_GetStaticLongField,

  4828     jni_GetStaticFloatField,

  4829     jni_GetStaticDoubleField,

  4831     jni_SetStaticObjectField,

  4832     jni_SetStaticBooleanField,

  4833     jni_SetStaticByteField,

  4834     jni_SetStaticCharField,

  4835     jni_SetStaticShortField,

  4836     jni_SetStaticIntField,

  4837     jni_SetStaticLongField,

  4838     jni_SetStaticFloatField,

  4839     jni_SetStaticDoubleField,

  4841     jni_NewString,

  4842     jni_GetStringLength,

  4843     jni_GetStringChars,

  4844     jni_ReleaseStringChars,

  4846     jni_NewStringUTF,

  4847     jni_GetStringUTFLength,

  4848     jni_GetStringUTFChars,

  4849     jni_ReleaseStringUTFChars,

  4851     jni_GetArrayLength,

  4853     jni_NewObjectArray,

  4854     jni_GetObjectArrayElement,

  4855     jni_SetObjectArrayElement,

  4857     jni_NewBooleanArray,

  4858     jni_NewByteArray,

  4859     jni_NewCharArray,

  4860     jni_NewShortArray,

  4861     jni_NewIntArray,

  4862     jni_NewLongArray,

  4863     jni_NewFloatArray,

  4864     jni_NewDoubleArray,

  4866     jni_GetBooleanArrayElements,

  4867     jni_GetByteArrayElements,

  4868     jni_GetCharArrayElements,

  4869     jni_GetShortArrayElements,

  4870     jni_GetIntArrayElements,

  4871     jni_GetLongArrayElements,

  4872     jni_GetFloatArrayElements,

  4873     jni_GetDoubleArrayElements,

  4875     jni_ReleaseBooleanArrayElements,

  4876     jni_ReleaseByteArrayElements,

  4877     jni_ReleaseCharArrayElements,

  4878     jni_ReleaseShortArrayElements,

  4879     jni_ReleaseIntArrayElements,

  4880     jni_ReleaseLongArrayElements,

  4881     jni_ReleaseFloatArrayElements,

  4882     jni_ReleaseDoubleArrayElements,

  4884     jni_GetBooleanArrayRegion,

  4885     jni_GetByteArrayRegion,

  4886     jni_GetCharArrayRegion,

  4887     jni_GetShortArrayRegion,

  4888     jni_GetIntArrayRegion,

  4889     jni_GetLongArrayRegion,

  4890     jni_GetFloatArrayRegion,

  4891     jni_GetDoubleArrayRegion,

  4893     jni_SetBooleanArrayRegion,

  4894     jni_SetByteArrayRegion,

  4895     jni_SetCharArrayRegion,

  4896     jni_SetShortArrayRegion,

  4897     jni_SetIntArrayRegion,

  4898     jni_SetLongArrayRegion,

  4899     jni_SetFloatArrayRegion,

  4900     jni_SetDoubleArrayRegion,

  4902     jni_RegisterNatives,

  4903     jni_UnregisterNatives,

  4905     jni_MonitorEnter,

  4906     jni_MonitorExit,

  4908     jni_GetJavaVM,

  4910     jni_GetStringRegion,

  4911     jni_GetStringUTFRegion,

  4913     jni_GetPrimitiveArrayCritical,

  4914     jni_ReleasePrimitiveArrayCritical,

  4916     jni_GetStringCritical,

  4917     jni_ReleaseStringCritical,

  4919     jni_NewWeakGlobalRef,

  4920     jni_DeleteWeakGlobalRef,

  4922     jni_ExceptionCheck,

  4924     jni_NewDirectByteBuffer,

  4925     jni_GetDirectBufferAddress,

  4926     jni_GetDirectBufferCapacity,

  4928     // New 1_6 features

  4930     jni_GetObjectRefType

  4931 };

  4934 // For jvmti use to modify jni function table.

  4935 // Java threads in native contiues to run until it is transitioned

  4936 // to VM at safepoint. Before the transition or before it is blocked

  4937 // for safepoint it may access jni function table. VM could crash if

  4938 // any java thread access the jni function table in the middle of memcpy.

  4939 // To avoid this each function pointers are copied automically.

  4940 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4941   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4942   intptr_t *a = (intptr_t *) jni_functions();

  4943   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4944   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4945     Atomic::store_ptr(*b++, a++);

  4946   }

  4947 }

  4949 void quicken_jni_functions() {

  4950   // Replace Get<Primitive>Field with fast versions

  4951   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4952       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4953 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4954       // windows x86 currently needs SEH wrapper and the gain of the fast

  4955       // versions currently isn't certain for server vm on uniprocessor.

  4956       && os::is_MP()

  4957 #endif

  4958   ) {

  4959     address func;

  4960     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4961     if (func != (address)-1) {

  4962       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4963     }

  4964     func = JNI_FastGetField::generate_fast_get_byte_field();

  4965     if (func != (address)-1) {

  4966       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4967     }

  4968     func = JNI_FastGetField::generate_fast_get_char_field();

  4969     if (func != (address)-1) {

  4970       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4971     }

  4972     func = JNI_FastGetField::generate_fast_get_short_field();

  4973     if (func != (address)-1) {

  4974       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4975     }

  4976     func = JNI_FastGetField::generate_fast_get_int_field();

  4977     if (func != (address)-1) {

  4978       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4979     }

  4980     func = JNI_FastGetField::generate_fast_get_long_field();

  4981     if (func != (address)-1) {

  4982       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4983     }

  4984     func = JNI_FastGetField::generate_fast_get_float_field();

  4985     if (func != (address)-1) {

  4986       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4987     }

  4988     func = JNI_FastGetField::generate_fast_get_double_field();

  4989     if (func != (address)-1) {

  4990       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4991     }

  4992   }

  4993 }

  4995 // Returns the function structure

  4996 struct JNINativeInterface_* jni_functions() {

  4997 #if INCLUDE_JNI_CHECK

  4998   if (CheckJNICalls) return jni_functions_check();

  4999 #endif // INCLUDE_JNI_CHECK

  5000   return &jni_NativeInterface;

  5001 }

  5003 // Returns the function structure

  5004 struct JNINativeInterface_* jni_functions_nocheck() {

  5005   return &jni_NativeInterface;

  5006 }

  5009 // Invocation API

  5012 // Forward declaration

  5013 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  5015 // Global invocation API vars

  5016 volatile jint vm_created = 0;

  5017 // Indicate whether it is safe to recreate VM

  5018 volatile jint safe_to_recreate_vm = 1;

  5019 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5022 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5023 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5025 #ifndef USDT2

  5026 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5027 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5028 #else /* USDT2 */

  5029 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5030                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5031 #endif /* USDT2 */

  5033 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5034 #ifndef USDT2

  5035   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5036 #else /* USDT2 */

  5037   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5038                                              args_);

  5039 #endif /* USDT2 */

  5040   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5041   jint ret = JNI_ERR;

  5042   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5044   if (Threads::is_supported_jni_version(args->version)) {

  5045     ret = JNI_OK;

  5046   }

  5047   // 1.1 style no longer supported in hotspot.

  5048   // According the JNI spec, we should update args->version on return.

  5049   // We also use the structure to communicate with launcher about default

  5050   // stack size.

  5051   if (args->version == JNI_VERSION_1_1) {

  5052     args->version = JNI_VERSION_1_2;

  5053     // javaStackSize is int in arguments structure

  5054     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5055     args->javaStackSize = (jint)(ThreadStackSize * K);

  5056   }

  5057   return ret;

  5058 }

  5060 #ifndef PRODUCT

  5062 #include "gc_implementation/shared/gcTimer.hpp"

  5063 #include "gc_interface/collectedHeap.hpp"

  5064 #if INCLUDE_ALL_GCS

  5065 #include "gc_implementation/g1/heapRegionRemSet.hpp"

  5066 #endif

  5067 #include "utilities/quickSort.hpp"

  5068 #include "utilities/ostream.hpp"

  5069 #if INCLUDE_VM_STRUCTS

  5070 #include "runtime/vmStructs.hpp"

  5071 #endif

  5073 #define run_unit_test(unit_test_function_call)              \

  5074   tty->print_cr("Running test: " #unit_test_function_call); \

  5075   unit_test_function_call

  5077 // Forward declaration

  5078 void TestReservedSpace_test();

  5079 void TestReserveMemorySpecial_test();

  5080 void TestVirtualSpace_test();

  5081 void TestMetaspaceAux_test();

  5082 void TestMetachunk_test();

  5083 void TestVirtualSpaceNode_test();

  5084 void TestNewSize_test();

  5085 #if INCLUDE_ALL_GCS

  5086 void TestOldFreeSpaceCalculation_test();

  5087 void TestG1BiasedArray_test();

  5088 void TestCodeCacheRemSet_test();

  5089 #endif

  5091 void execute_internal_vm_tests() {

  5092   if (ExecuteInternalVMTests) {

  5093     tty->print_cr("Running internal VM tests");

  5094     run_unit_test(TestReservedSpace_test());

  5095     run_unit_test(TestReserveMemorySpecial_test());

  5096     run_unit_test(TestVirtualSpace_test());

  5097     run_unit_test(TestMetaspaceAux_test());

  5098     run_unit_test(TestMetachunk_test());

  5099     run_unit_test(TestVirtualSpaceNode_test());

  5100     run_unit_test(GlobalDefinitions::test_globals());

  5101     run_unit_test(GCTimerAllTest::all());

  5102     run_unit_test(arrayOopDesc::test_max_array_length());

  5103     run_unit_test(CollectedHeap::test_is_in());

  5104     run_unit_test(QuickSort::test_quick_sort());

  5105     run_unit_test(AltHashing::test_alt_hash());

  5106     run_unit_test(test_loggc_filename());

  5107     run_unit_test(TestNewSize_test());

  5108 #if INCLUDE_VM_STRUCTS

  5109     run_unit_test(VMStructs::test());

  5110 #endif

  5111 #if INCLUDE_ALL_GCS

  5112     run_unit_test(TestOldFreeSpaceCalculation_test());

  5113     run_unit_test(TestG1BiasedArray_test());

  5114     run_unit_test(HeapRegionRemSet::test_prt());

  5115     run_unit_test(TestCodeCacheRemSet_test());

  5116 #endif

  5117     tty->print_cr("All internal VM tests passed");

  5118   }

  5119 }

  5121 #undef run_unit_test

  5123 #endif

  5125 #ifndef USDT2

  5126 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5127 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5128 #else /* USDT2 */

  5129 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5130                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5131 #endif /* USDT2 */

  5133 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5134 #ifndef USDT2

  5135   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5136 #else /* USDT2 */

  5137   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5138                                  (void **) vm, penv, args);

  5139 #endif /* USDT2 */

  5141   jint result = JNI_ERR;

  5142   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5144   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5145   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5146   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5147   // on all architectures.  So we check it works before relying on it.

  5148 #if defined(ZERO) && defined(ASSERT)

  5149   {

  5150     jint a = 0xcafebabe;

  5151     jint b = Atomic::xchg(0xdeadbeef, &a);

  5152     void *c = &a;

  5153     void *d = Atomic::xchg_ptr(&b, &c);

  5154     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5155     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5156   }

  5157 #endif // ZERO && ASSERT

  5159   // At the moment it's only possible to have one Java VM,

  5160   // since some of the runtime state is in global variables.

  5162   // We cannot use our mutex locks here, since they only work on

  5163   // Threads. We do an atomic compare and exchange to ensure only

  5164   // one thread can call this method at a time

  5166   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5167   // the add/dec implementations are dependent on whether we are running

  5168   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5169   // function used to determine this will always return false. Atomic::xchg

  5170   // does not have this problem.

  5171   if (Atomic::xchg(1, &vm_created) == 1) {

  5172     return JNI_EEXIST;   // already created, or create attempt in progress

  5173   }

  5174   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5175     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5176   }

  5178   assert(vm_created == 1, "vm_created is true during the creation");

  5180   /**

  5181    * Certain errors during initialization are recoverable and do not

  5182    * prevent this method from being called again at a later time

  5183    * (perhaps with different arguments).  However, at a certain

  5184    * point during initialization if an error occurs we cannot allow

  5185    * this function to be called again (or it will crash).  In those

  5186    * situations, the 'canTryAgain' flag is set to false, which atomically

  5187    * sets safe_to_recreate_vm to 1, such that any new call to

  5188    * JNI_CreateJavaVM will immediately fail using the above logic.

  5189    */

  5190   bool can_try_again = true;

  5192   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5193   if (result == JNI_OK) {

  5194     JavaThread *thread = JavaThread::current();

  5195     /* thread is thread_in_vm here */

  5196     *vm = (JavaVM *)(&main_vm);

  5197     *(JNIEnv**)penv = thread->jni_environment();

  5199     // Tracks the time application was running before GC

  5200     RuntimeService::record_application_start();

  5202     // Notify JVMTI

  5203     if (JvmtiExport::should_post_thread_life()) {

  5204        JvmtiExport::post_thread_start(thread);

  5205     }

  5207     EventThreadStart event;

  5208     if (event.should_commit()) {

  5209       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5210       event.commit();

  5211     }

  5213 #ifndef PRODUCT

  5214   #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED

  5215     #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()

  5216   #endif

  5218     // Check if we should compile all classes on bootclasspath

  5219     if (CompileTheWorld) ClassLoader::compile_the_world();

  5220     if (ReplayCompiles) ciReplay::replay(thread);

  5222     // Some platforms (like Win*) need a wrapper around these test

  5223     // functions in order to properly handle error conditions.

  5224     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);

  5225     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);

  5226 #endif

  5228     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5229     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5230   } else {

  5231     if (can_try_again) {

  5232       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5233       safe_to_recreate_vm = 1;

  5234     }

  5236     // Creation failed. We must reset vm_created

  5237     *vm = 0;

  5238     *(JNIEnv**)penv = 0;

  5239     // reset vm_created last to avoid race condition. Use OrderAccess to

  5240     // control both compiler and architectural-based reordering.

  5241     OrderAccess::release_store(&vm_created, 0);

  5242   }

  5244   return result;

  5245 }

  5247 #ifndef USDT2

  5248 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5249   JavaVM**, jsize, jsize*);

  5250 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5251 #endif /* !USDT2 */

  5253 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5254   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5255   // JNIWrapper("GetCreatedJavaVMs");

  5256 #ifndef USDT2

  5257   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5258     vm_buf, bufLen, numVMs);

  5259 #else /* USDT2 */

  5260   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5261                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5262 #endif /* USDT2 */

  5263   if (vm_created) {

  5264     if (numVMs != NULL) *numVMs = 1;

  5265     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5266   } else {

  5267     if (numVMs != NULL) *numVMs = 0;

  5268   }

  5269 #ifndef USDT2

  5270   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5271 #else /* USDT2 */

  5272   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5273                                     JNI_OK);

  5274 #endif /* USDT2 */

  5275   return JNI_OK;

  5276 }

  5278 extern "C" {

  5280 #ifndef USDT2

  5281 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5282 #else /* USDT2 */

  5283 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5284                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5285 #endif /* USDT2 */

  5287 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5288 #ifndef USDT2

  5289   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5290 #else /* USDT2 */

  5291   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5292                                   vm);

  5293 #endif /* USDT2 */

  5294   jint res = JNI_ERR;

  5295   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5297   if (!vm_created) {

  5298     res = JNI_ERR;

  5299     return res;

  5300   }

  5302   JNIWrapper("DestroyJavaVM");

  5303   JNIEnv *env;

  5304   JavaVMAttachArgs destroyargs;

  5305   destroyargs.version = CurrentVersion;

  5306   destroyargs.name = (char *)"DestroyJavaVM";

  5307   destroyargs.group = NULL;

  5308   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5309   if (res != JNI_OK) {

  5310     return res;

  5311   }

  5313   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5314   JavaThread* thread = JavaThread::current();

  5315   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5316   if (Threads::destroy_vm()) {

  5317     // Should not change thread state, VM is gone

  5318     vm_created = false;

  5319     res = JNI_OK;

  5320     return res;

  5321   } else {

  5322     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5323     res = JNI_ERR;

  5324     return res;

  5325   }

  5326 }

  5329 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5330   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5332   // Check below commented out from JDK1.2fcs as well

  5333   /*

  5334   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5335     return JNI_EVERSION;

  5336   }

  5337   */

  5339   Thread* t = ThreadLocalStorage::get_thread_slow();

  5340   if (t != NULL) {

  5341     // If the thread has been attached this operation is a no-op

  5342     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5343     return JNI_OK;

  5344   }

  5346   // Create a thread and mark it as attaching so it will be skipped by the

  5347   // ThreadsListEnumerator - see CR 6404306

  5348   JavaThread* thread = new JavaThread(true);

  5350   // Set correct safepoint info. The thread is going to call into Java when

  5351   // initializing the Java level thread object. Hence, the correct state must

  5352   // be set in order for the Safepoint code to deal with it correctly.

  5353   thread->set_thread_state(_thread_in_vm);

  5354   // Must do this before initialize_thread_local_storage

  5355   thread->record_stack_base_and_size();

  5357   thread->initialize_thread_local_storage();

  5359   if (!os::create_attached_thread(thread)) {

  5360     delete thread;

  5361     return JNI_ERR;

  5362   }

  5363   // Enable stack overflow checks

  5364   thread->create_stack_guard_pages();

  5366   thread->initialize_tlab();

  5368   thread->cache_global_variables();

  5370   // Crucial that we do not have a safepoint check for this thread, since it has

  5371   // not been added to the Thread list yet.

  5372   { Threads_lock->lock_without_safepoint_check();

  5373     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5374     // avoid this thread trying to do a GC before it is added to the thread-list

  5375     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5376     Threads::add(thread, daemon);

  5377     Threads_lock->unlock();

  5378   }

  5379   // Create thread group and name info from attach arguments

  5380   oop group = NULL;

  5381   char* thread_name = NULL;

  5382   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5383     group = JNIHandles::resolve(args->group);

  5384     thread_name = args->name; // may be NULL

  5385   }

  5386   if (group == NULL) group = Universe::main_thread_group();

  5388   // Create Java level thread object and attach it to this thread

  5389   bool attach_failed = false;

  5390   {

  5391     EXCEPTION_MARK;

  5392     HandleMark hm(THREAD);

  5393     Handle thread_group(THREAD, group);

  5394     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5395     if (HAS_PENDING_EXCEPTION) {

  5396       CLEAR_PENDING_EXCEPTION;

  5397       // cleanup outside the handle mark.

  5398       attach_failed = true;

  5399     }

  5400   }

  5402   if (attach_failed) {

  5403     // Added missing cleanup

  5404     thread->cleanup_failed_attach_current_thread();

  5405     return JNI_ERR;

  5406   }

  5408   // mark the thread as no longer attaching

  5409   // this uses a fence to push the change through so we don't have

  5410   // to regrab the threads_lock

  5411   thread->set_done_attaching_via_jni();

  5413   // Set java thread status.

  5414   java_lang_Thread::set_thread_status(thread->threadObj(),

  5415               java_lang_Thread::RUNNABLE);

  5417   // Notify the debugger

  5418   if (JvmtiExport::should_post_thread_life()) {

  5419     JvmtiExport::post_thread_start(thread);

  5420   }

  5422   EventThreadStart event;

  5423   if (event.should_commit()) {

  5424     event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5425     event.commit();

  5426   }

  5428   *(JNIEnv**)penv = thread->jni_environment();

  5430   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5431   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5432   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5433   // needed.

  5435   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5437   // Perform any platform dependent FPU setup

  5438   os::setup_fpu();

  5440   return JNI_OK;

  5441 }

  5444 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5445 #ifndef USDT2

  5446   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5447 #else /* USDT2 */

  5448   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5449                                         vm, penv, _args);

  5450 #endif /* USDT2 */

  5451   if (!vm_created) {

  5452 #ifndef USDT2

  5453     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5454 #else /* USDT2 */

  5455   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5456                                          (uint32_t) JNI_ERR);

  5457 #endif /* USDT2 */

  5458     return JNI_ERR;

  5459   }

  5461   JNIWrapper("AttachCurrentThread");

  5462   jint ret = attach_current_thread(vm, penv, _args, false);

  5463 #ifndef USDT2

  5464   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5465 #else /* USDT2 */

  5466   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5467                                          ret);

  5468 #endif /* USDT2 */

  5469   return ret;

  5470 }

  5473 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5474 #ifndef USDT2

  5475   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5476 #else /* USDT2 */

  5477   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5478                                         vm);

  5479 #endif /* USDT2 */

  5480   VM_Exit::block_if_vm_exited();

  5482   JNIWrapper("DetachCurrentThread");

  5484   // If the thread has been deattacted the operations is a no-op

  5485   if (ThreadLocalStorage::thread() == NULL) {

  5486 #ifndef USDT2

  5487     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5488 #else /* USDT2 */

  5489   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5490                                          JNI_OK);

  5491 #endif /* USDT2 */

  5492     return JNI_OK;

  5493   }

  5495   JavaThread* thread = JavaThread::current();

  5496   if (thread->has_last_Java_frame()) {

  5497 #ifndef USDT2

  5498     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5499 #else /* USDT2 */

  5500   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5501                                          (uint32_t) JNI_ERR);

  5502 #endif /* USDT2 */

  5503     // Can't detach a thread that's running java, that can't work.

  5504     return JNI_ERR;

  5505   }

  5507   // Safepoint support. Have to do call-back to safepoint code, if in the

  5508   // middel of a safepoint operation

  5509   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5511   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5512   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5513   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5514   // of the guards is visible in jni_AttachCurrentThread above,

  5515   // the removal of the guards is buried below in JavaThread::exit()

  5516   // here. The abstraction should be more symmetrically either exposed

  5517   // or hidden (e.g. it could probably be hidden in the same

  5518   // (platform-dependent) methods where we do alternate stack

  5519   // maintenance work?)

  5520   thread->exit(false, JavaThread::jni_detach);

  5521   delete thread;

  5523 #ifndef USDT2

  5524   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5525 #else /* USDT2 */

  5526   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5527                                          JNI_OK);

  5528 #endif /* USDT2 */

  5529   return JNI_OK;

  5530 }

  5532 #ifndef USDT2

  5533 DT_RETURN_MARK_DECL(GetEnv, jint);

  5534 #else /* USDT2 */

  5535 DT_RETURN_MARK_DECL(GetEnv, jint

  5536                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5537 #endif /* USDT2 */

  5539 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5540 #ifndef USDT2

  5541   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5542 #else /* USDT2 */

  5543   HOTSPOT_JNI_GETENV_ENTRY(

  5544                            vm, penv, version);

  5545 #endif /* USDT2 */

  5546   jint ret = JNI_ERR;

  5547   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5549   if (!vm_created) {

  5550     *penv = NULL;

  5551     ret = JNI_EDETACHED;

  5552     return ret;

  5553   }

  5555   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5556     return ret;

  5557   }

  5559 #ifndef JVMPI_VERSION_1

  5560 // need these in order to be polite about older agents

  5561 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5562 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5563 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5564 #endif // !JVMPI_VERSION_1

  5566   Thread* thread = ThreadLocalStorage::thread();

  5567   if (thread != NULL && thread->is_Java_thread()) {

  5568     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5569       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5570       ret = JNI_OK;

  5571       return ret;

  5573     } else if (version == JVMPI_VERSION_1 ||

  5574                version == JVMPI_VERSION_1_1 ||

  5575                version == JVMPI_VERSION_1_2) {

  5576       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5577       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5578       ret = JNI_EVERSION;

  5579       return ret;

  5580     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5581       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5582       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5583       ret = JNI_EVERSION;

  5584       return ret;

  5585     } else {

  5586       *penv = NULL;

  5587       ret = JNI_EVERSION;

  5588       return ret;

  5589     }

  5590   } else {

  5591     *penv = NULL;

  5592     ret = JNI_EDETACHED;

  5593     return ret;

  5594   }

  5595 }

  5598 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5599 #ifndef USDT2

  5600   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5601 #else /* USDT2 */

  5602   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5603                                                 vm, penv, _args);

  5604 #endif /* USDT2 */

  5605   if (!vm_created) {

  5606 #ifndef USDT2

  5607     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5608 #else /* USDT2 */

  5609   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5610                                                  (uint32_t) JNI_ERR);

  5611 #endif /* USDT2 */

  5612     return JNI_ERR;

  5613   }

  5615   JNIWrapper("AttachCurrentThreadAsDaemon");

  5616   jint ret = attach_current_thread(vm, penv, _args, true);

  5617 #ifndef USDT2

  5618   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5619 #else /* USDT2 */

  5620   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5621                                                  ret);

  5622 #endif /* USDT2 */

  5623   return ret;

  5624 }

  5627 } // End extern "C"

  5629 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5630     NULL,

  5631     NULL,

  5632     NULL,

  5634     jni_DestroyJavaVM,

  5635     jni_AttachCurrentThread,

  5636     jni_DetachCurrentThread,

  5637     jni_GetEnv,

  5638     jni_AttachCurrentThreadAsDaemon

  5639 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@ce8f6bb717c9

src/share/vm/prims/jni.cpp