jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@32b682649973

     1 /*

     2  * Copyright (c) 1997, 2016, 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/memTracker.hpp"

    77 #include "services/runtimeService.hpp"

    78 #include "trace/tracing.hpp"

    79 #include "utilities/defaultStream.hpp"

    80 #include "utilities/dtrace.hpp"

    81 #include "utilities/events.hpp"

    82 #include "utilities/histogram.hpp"

    83 #ifdef TARGET_OS_FAMILY_linux

    84 # include "os_linux.inline.hpp"

    85 #endif

    86 #ifdef TARGET_OS_FAMILY_solaris

    87 # include "os_solaris.inline.hpp"

    88 #endif

    89 #ifdef TARGET_OS_FAMILY_windows

    90 # include "os_windows.inline.hpp"

    91 #endif

    92 #ifdef TARGET_OS_FAMILY_bsd

    93 # include "os_bsd.inline.hpp"

    94 #endif

    96 static jint CurrentVersion = JNI_VERSION_1_8;

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

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

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

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

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

   104 //

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

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

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

   108 // a reference to it).

   109 //

   110 // Example:

   111 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   113 //   int return_value = 0;

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

   115 //   foo(CHECK_0)

   116 //   return_value = 5;

   117 //   return return_value;

   118 // JNI_END

   119 #ifndef USDT2

   120 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   122   DTRACE_ONLY(                                                             \

   123     class DTraceReturnProbeMark_##name {                                   \

   124      public:                                                               \

   125       const type& _ret_ref;                                                \

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

   127       ~DTraceReturnProbeMark_##name() {                                    \

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

   129       }                                                                    \

   130     }                                                                      \

   131   )

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

   133 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   135   DTRACE_ONLY(                                                             \

   136     class DTraceReturnProbeMark_##name {                                   \

   137      public:                                                               \

   138       ~DTraceReturnProbeMark_##name() {                                    \

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

   140       }                                                                    \

   141     }                                                                      \

   142   )

   144 #else /* USDT2 */

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

   147   DTRACE_ONLY(                                                             \

   148     class DTraceReturnProbeMark_##name {                                   \

   149      public:                                                               \

   150       const type& _ret_ref;                                                \

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

   152       ~DTraceReturnProbeMark_##name() {                                    \

   153         probe;                                                             \

   154       }                                                                    \

   155     }                                                                      \

   156   )

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

   158 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   159   DTRACE_ONLY(                                                             \

   160     class DTraceReturnProbeMark_##name {                                   \

   161      public:                                                               \

   162       ~DTraceReturnProbeMark_##name() {                                    \

   163         probe;                                                             \

   164       }                                                                    \

   165     }                                                                      \

   166   )

   167 #endif /* USDT2 */

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

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

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

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

   173 #define DT_VOID_RETURN_MARK(name) \

   174   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   179 // different behavior for Float/Double

   180 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   181 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   182 #define FP_SELECT_Char(intcode, fpcode)    intcode

   183 #define FP_SELECT_Short(intcode, fpcode)   intcode

   184 #define FP_SELECT_Object(intcode, fpcode)  intcode

   185 #define FP_SELECT_Int(intcode, fpcode)     intcode

   186 #define FP_SELECT_Long(intcode, fpcode)    intcode

   187 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   188 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   190   FP_SELECT_##TypeName(intcode, fpcode)

   192 #define COMMA ,

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

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

   196 #ifndef USDT2

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

   198   FP_SELECT(TypeName, \

   199     DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )

   200 #else /* USDT2 */

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

   202   FP_SELECT(TypeName, \

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

   204 #endif /* USDT2 */

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

   206   FP_SELECT(TypeName, \

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

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

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

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

   214     uintptr_t as_uint = (uintptr_t) id;

   215     intptr_t offset = raw_instance_offset(id);

   216     if (is_checked_jfieldID(id)) {

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

   218         return false;

   219       }

   220     }

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

   222   } else {

   223     JNIid* result = (JNIid*) id;

   224 #ifdef ASSERT

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

   226 #else

   227     return result != NULL;

   228 #endif

   229   }

   230 }

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

   234   if (offset <= small_offset_mask) {

   235     Klass* field_klass = k;

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

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

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

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

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

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

   242       super_klass = field_klass->super();

   243     }

   244     debug_only(No_Safepoint_Verifier nosafepoint;)

   245     uintptr_t klass_hash = field_klass->identity_hash();

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

   247   } else {

   248 #if 0

   249     #ifndef PRODUCT

   250     {

   251       ResourceMark rm;

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

   253     }

   254     #endif

   255 #endif

   256     return 0;

   257   }

   258 }

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

   261   uintptr_t as_uint = (uintptr_t) id;

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

   263   do {

   264     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   267       return true;

   268     k = k->super();

   269   } while (k != NULL);

   270   return false;

   271 }

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

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

   275   uintptr_t as_uint = (uintptr_t) id;

   276   intptr_t offset = raw_instance_offset(id);

   277   if (VerifyJNIFields) {

   278     if (is_checked_jfieldID(id)) {

   279       guarantee(klass_hash_ok(k, id),

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

   281     } else {

   282 #if 0

   283       #ifndef PRODUCT

   284       if (Verbose) {

   285   ResourceMark rm;

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

   287       }

   288       #endif

   289 #endif

   290     }

   291   }

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

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

   294 }

   296 // Wrapper to trace JNI functions

   298 #ifdef ASSERT

   299   Histogram* JNIHistogram;

   300   static volatile jint JNIHistogram_lock = 0;

   302   class JNITraceWrapper : public StackObj {

   303    public:

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

   305       if (TraceJNICalls) {

   306         va_list ap;

   307         va_start(ap, format);

   308         tty->print("JNI ");

   309         tty->vprint_cr(format, ap);

   310         va_end(ap);

   311       }

   312     }

   313   };

   315   class JNIHistogramElement : public HistogramElement {

   316     public:

   317      JNIHistogramElement(const char* name);

   318   };

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

   321     _name = elementName;

   322     uintx count = 0;

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

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

   326         count +=1;

   327         if ( (WarnOnStalledSpinLock > 0)

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

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

   330         }

   331       }

   332      }

   335     if(JNIHistogram == NULL)

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

   338     JNIHistogram->add_element(this);

   339     Atomic::dec(&JNIHistogram_lock);

   340   }

   342   #define JNICountWrapper(arg)                                     \

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

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

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

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

   347 #else

   348   #define JNIWrapper(arg)

   349 #endif

   352 // Implementation of JNI entries

   354 #ifndef USDT2

   355 DT_RETURN_MARK_DECL(DefineClass, jclass);

   356 #else /* USDT2 */

   357 DT_RETURN_MARK_DECL(DefineClass, jclass

   358                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   359 #endif /* USDT2 */

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

   362                                   const jbyte *buf, jsize bufLen))

   363   JNIWrapper("DefineClass");

   365 #ifndef USDT2

   366   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   368 #else /* USDT2 */

   369   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   371 #endif /* USDT2 */

   372   jclass cls = NULL;

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

   375   TempNewSymbol class_name = NULL;

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

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

   378   if (name != NULL) {

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

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

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

   382       // into the constant pool.

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

   384     }

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

   386   }

   387   ResourceMark rm(THREAD);

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

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

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

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

   393     // If not, increment the corresponding counter

   394     if (ObjectSynchronizer::

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

   396         ObjectSynchronizer::owner_self) {

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

   398     }

   399   }

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

   401                                                      Handle(), &st, true,

   402                                                      CHECK_NULL);

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

   405     trace_class_resolution(k);

   406   }

   408   cls = (jclass)JNIHandles::make_local(

   409     env, k->java_mirror());

   410   return cls;

   411 JNI_END

   415 static bool first_time_FindClass = true;

   417 #ifndef USDT2

   418 DT_RETURN_MARK_DECL(FindClass, jclass);

   419 #else /* USDT2 */

   420 DT_RETURN_MARK_DECL(FindClass, jclass

   421                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   422 #endif /* USDT2 */

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

   425   JNIWrapper("FindClass");

   426 #ifndef USDT2

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

   428 #else /* USDT2 */

   429   HOTSPOT_JNI_FINDCLASS_ENTRY(

   430                               env, (char *)name);

   431 #endif /* USDT2 */

   433   jclass result = NULL;

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

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

   437   bool first_time = first_time_FindClass;

   438   first_time_FindClass = false;

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

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

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

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

   444   }

   446   //%note jni_3

   447   Handle loader;

   448   Handle protection_domain;

   449   // Find calling class

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

   451   if (k.not_null()) {

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

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

   454     // in the correct class context.

   455     if (loader.is_null() &&

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

   457       JavaValue result(T_OBJECT);

   458       JavaCalls::call_static(&result, k,

   459                                       vmSymbols::getFromClass_name(),

   460                                       vmSymbols::void_class_signature(),

   461                                       thread);

   462       if (HAS_PENDING_EXCEPTION) {

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

   464         CLEAR_PENDING_EXCEPTION;

   465         THROW_HANDLE_0(ex);

   466       }

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

   468       loader = Handle(THREAD,

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

   470       protection_domain = Handle(THREAD,

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

   472     }

   473   } else {

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

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

   476   }

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

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

   480                                         protection_domain, true, thread);

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

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

   484   }

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

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

   488   // Controlled by flag DelayCompilationDuringStartup.

   489   if (first_time && !CompileTheWorld)

   490     CompilationPolicy::completed_vm_startup();

   492   return result;

   493 JNI_END

   495 #ifndef USDT2

   496 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   497 #else /* USDT2 */

   498 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   499                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   500 #endif /* USDT2 */

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

   503   JNIWrapper("FromReflectedMethod");

   504 #ifndef USDT2

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

   506 #else /* USDT2 */

   507   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   508                                         env, method);

   509 #endif /* USDT2 */

   510   jmethodID ret = NULL;

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

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

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

   515   oop mirror     = NULL;

   516   int slot       = 0;

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

   519     mirror = java_lang_reflect_Constructor::clazz(reflected);

   520     slot   = java_lang_reflect_Constructor::slot(reflected);

   521   } else {

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

   523     mirror = java_lang_reflect_Method::clazz(reflected);

   524     slot   = java_lang_reflect_Method::slot(reflected);

   525   }

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

   528   KlassHandle k1(THREAD, k);

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

   530   k1()->initialize(CHECK_NULL);

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

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

   533   return ret;

   534 JNI_END

   536 #ifndef USDT2

   537 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   538 #else /* USDT2 */

   539 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   540                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   541 #endif /* USDT2 */

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

   544   JNIWrapper("FromReflectedField");

   545 #ifndef USDT2

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

   547 #else /* USDT2 */

   548   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   549                                        env, field);

   550 #endif /* USDT2 */

   551   jfieldID ret = NULL;

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

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

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

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

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

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

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

   561   KlassHandle k1(THREAD, k);

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

   563   k1()->initialize(CHECK_NULL);

   565   // First check if this is a static field

   566   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   570     debug_only(id->set_is_static_field_id();)

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

   572     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   573     return ret;

   574   }

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

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

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

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

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

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

   582   return ret;

   583 JNI_END

   585 #ifndef USDT2

   586 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   587 #else /* USDT2 */

   588 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   589                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   590 #endif /* USDT2 */

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

   593   JNIWrapper("ToReflectedMethod");

   594 #ifndef USDT2

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

   596 #else /* USDT2 */

   597   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   599 #endif /* USDT2 */

   600   jobject ret = NULL;

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

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

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

   605   oop reflection_method;

   606   if (m->is_initializer()) {

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

   608   } else {

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

   610   }

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

   612   return ret;

   613 JNI_END

   615 #ifndef USDT2

   616 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   617 #else /* USDT2 */

   618 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   619                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   620 #endif /* USDT2 */

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

   623   JNIWrapper("GetSuperclass");

   624 #ifndef USDT2

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

   626 #else /* USDT2 */

   627   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   628                                   env, sub);

   629 #endif /* USDT2 */

   630   jclass obj = NULL;

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

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

   634   // primitive classes return NULL

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

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

   638   // arrays return Object

   639   // interfaces return NULL

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

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

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

   644   // return mirror for superclass

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

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

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

   648                                  ? SystemDictionary::Object_klass()

   649                                  : k->super() ) );

   650   assert(super == super2,

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

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

   653   return obj;

   654 JNI_END

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

   657   JNIWrapper("IsSubclassOf");

   658 #ifndef USDT2

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

   660 #else /* USDT2 */

   661   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   662                                      env, sub, super);

   663 #endif /* USDT2 */

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

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

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

   667       java_lang_Class::is_primitive(super_mirror)) {

   668     jboolean ret = (sub_mirror == super_mirror);

   669 #ifndef USDT2

   670     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   671 #else /* USDT2 */

   672     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   673                                         ret);

   674 #endif /* USDT2 */

   675     return ret;

   676   }

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

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

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

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

   681                    JNI_TRUE : JNI_FALSE;

   682 #ifndef USDT2

   683   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   684 #else /* USDT2 */

   685   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   686                                       ret);

   687 #endif /* USDT2 */

   688   return ret;

   689 JNI_END

   691 #ifndef USDT2

   692 DT_RETURN_MARK_DECL(Throw, jint);

   693 #else /* USDT2 */

   694 DT_RETURN_MARK_DECL(Throw, jint

   695                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   696 #endif /* USDT2 */

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

   699   JNIWrapper("Throw");

   700 #ifndef USDT2

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

   702 #else /* USDT2 */

   703   HOTSPOT_JNI_THROW_ENTRY(

   704  env, obj);

   705 #endif /* USDT2 */

   706   jint ret = JNI_OK;

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

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

   710   ShouldNotReachHere();

   711 JNI_END

   713 #ifndef USDT2

   714 DT_RETURN_MARK_DECL(ThrowNew, jint);

   715 #else /* USDT2 */

   716 DT_RETURN_MARK_DECL(ThrowNew, jint

   717                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   718 #endif /* USDT2 */

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

   721   JNIWrapper("ThrowNew");

   722 #ifndef USDT2

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

   724 #else /* USDT2 */

   725   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   727 #endif /* USDT2 */

   728   jint ret = JNI_OK;

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

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

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

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

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

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

   736   ShouldNotReachHere();

   737 JNI_END

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

   741 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   747 // state transition.

   749 static void jni_check_async_exceptions(JavaThread *thread) {

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

   751   thread->check_and_handle_async_exceptions();

   752 }

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

   755   JNIWrapper("ExceptionOccurred");

   756 #ifndef USDT2

   757   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   758 #else /* USDT2 */

   759   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   760                                       env);

   761 #endif /* USDT2 */

   762   jni_check_async_exceptions(thread);

   763   oop exception = thread->pending_exception();

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

   765 #ifndef USDT2

   766   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   767 #else /* USDT2 */

   768   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   769                                        ret);

   770 #endif /* USDT2 */

   771   return ret;

   772 JNI_END

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

   776   JNIWrapper("ExceptionDescribe");

   777 #ifndef USDT2

   778   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   779 #else /* USDT2 */

   780   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   781                                       env);

   782 #endif /* USDT2 */

   783   if (thread->has_pending_exception()) {

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

   785     thread->clear_pending_exception();

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

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

   788     } else {

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

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

   791         ResourceMark rm(THREAD);

   792         jio_fprintf(defaultStream::error_stream(),

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

   794       }

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

   796         JavaValue result(T_VOID);

   797         JavaCalls::call_virtual(&result,

   798                                 ex,

   799                                 KlassHandle(THREAD,

   800                                   SystemDictionary::Throwable_klass()),

   801                                 vmSymbols::printStackTrace_name(),

   802                                 vmSymbols::void_method_signature(),

   803                                 THREAD);

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

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

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

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

   808         // is expected.

   809         CLEAR_PENDING_EXCEPTION;

   810       } else {

   811         ResourceMark rm(THREAD);

   812         jio_fprintf(defaultStream::error_stream(),

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

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

   815       }

   816     }

   817   }

   818 #ifndef USDT2

   819   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   820 #else /* USDT2 */

   821   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   822                                        );

   823 #endif /* USDT2 */

   824 JNI_END

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

   828   JNIWrapper("ExceptionClear");

   829 #ifndef USDT2

   830   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   831 #else /* USDT2 */

   832   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   833                                    env);

   834 #endif /* USDT2 */

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

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

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

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

   840     state->set_exception_caught();

   841   }

   842   thread->clear_pending_exception();

   843 #ifndef USDT2

   844   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   845 #else /* USDT2 */

   846   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   847                                     );

   848 #endif /* USDT2 */

   849 JNI_END

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

   853   JNIWrapper("FatalError");

   854 #ifndef USDT2

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

   856 #else /* USDT2 */

   857   HOTSPOT_JNI_FATALERROR_ENTRY(

   858                                env, (char *) msg);

   859 #endif /* USDT2 */

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

   861   thread->print_stack();

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

   863 JNI_END

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

   867   JNIWrapper("PushLocalFrame");

   868 #ifndef USDT2

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

   870 #else /* USDT2 */

   871   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   872                                    env, capacity);

   873 #endif /* USDT2 */

   874   //%note jni_11

   875   if (capacity < 0 ||

   876       ((MaxJNILocalCapacity > 0) && (capacity > MaxJNILocalCapacity))) {

   877 #ifndef USDT2

   878     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   879 #else /* USDT2 */

   880     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   881                                       (uint32_t)JNI_ERR);

   882 #endif /* USDT2 */

   883     return JNI_ERR;

   884   }

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

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

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

   888   new_handles->set_pop_frame_link(old_handles);

   889   thread->set_active_handles(new_handles);

   890   jint ret = JNI_OK;

   891 #ifndef USDT2

   892   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   893 #else /* USDT2 */

   894   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   895                                     ret);

   896 #endif /* USDT2 */

   897   return ret;

   898 JNI_END

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

   902   JNIWrapper("PopLocalFrame");

   903 #ifndef USDT2

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

   905 #else /* USDT2 */

   906   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   907                                   env, result);

   908 #endif /* USDT2 */

   909   //%note jni_11

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

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

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

   913   if (new_handles != NULL) {

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

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

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

   917     // the release_block call will release the blocks.

   918     thread->set_active_handles(new_handles);

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

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

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

   922   }

   923 #ifndef USDT2

   924   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   925 #else /* USDT2 */

   926   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   927                                    result);

   928 #endif /* USDT2 */

   929   return result;

   930 JNI_END

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

   934   JNIWrapper("NewGlobalRef");

   935 #ifndef USDT2

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

   937 #else /* USDT2 */

   938   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   939                                  env, ref);

   940 #endif /* USDT2 */

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

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

   943 #ifndef USDT2

   944   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   945 #else /* USDT2 */

   946   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   947                                   ret);

   948 #endif /* USDT2 */

   949   return ret;

   950 JNI_END

   952 // Must be JNI_ENTRY (with HandleMark)

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

   954   JNIWrapper("DeleteGlobalRef");

   955 #ifndef USDT2

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

   957 #else /* USDT2 */

   958   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   959                                     env, ref);

   960 #endif /* USDT2 */

   961   JNIHandles::destroy_global(ref);

   962 #ifndef USDT2

   963   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   964 #else /* USDT2 */

   965   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   966                                      );

   967 #endif /* USDT2 */

   968 JNI_END

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

   971   JNIWrapper("DeleteLocalRef");

   972 #ifndef USDT2

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

   974 #else /* USDT2 */

   975   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   976                                    env, obj);

   977 #endif /* USDT2 */

   978   JNIHandles::destroy_local(obj);

   979 #ifndef USDT2

   980   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   981 #else /* USDT2 */

   982   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   983                                     );

   984 #endif /* USDT2 */

   985 JNI_END

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

   988   JNIWrapper("IsSameObject");

   989 #ifndef USDT2

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

   991 #else /* USDT2 */

   992   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

   993                                  env, r1, r2);

   994 #endif /* USDT2 */

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

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

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

   998 #ifndef USDT2

   999   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1000 #else /* USDT2 */

  1001   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1002                                   ret);

  1003 #endif /* USDT2 */

  1004   return ret;

  1005 JNI_END

  1008 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))

  1009   JNIWrapper("NewLocalRef");

  1010 #ifndef USDT2

  1011   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);

  1012 #else /* USDT2 */

  1013   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1014                                 env, ref);

  1015 #endif /* USDT2 */

  1016   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));

  1017 #ifndef USDT2

  1018   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1019 #else /* USDT2 */

  1020   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1021                                  ret);

  1022 #endif /* USDT2 */

  1023   return ret;

  1024 JNI_END

  1026 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))

  1027   JNIWrapper("EnsureLocalCapacity");

  1028 #ifndef USDT2

  1029   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);

  1030 #else /* USDT2 */

  1031   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1032                                         env, capacity);

  1033 #endif /* USDT2 */

  1034   jint ret;

  1035   if (capacity >= 0 &&

  1036       ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) {

  1037     ret = JNI_OK;

  1038   } else {

  1039     ret = JNI_ERR;

  1040   }

  1041 #ifndef USDT2

  1042   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1043 #else /* USDT2 */

  1044   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1045                                          ret);

  1046 #endif /* USDT2 */

  1047   return ret;

  1048 JNI_END

  1050 // Return the Handle Type

  1051 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))

  1052   JNIWrapper("GetObjectRefType");

  1053 #ifndef USDT2

  1054   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);

  1055 #else /* USDT2 */

  1056   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1057                                      env, obj);

  1058 #endif /* USDT2 */

  1059   jobjectRefType ret;

  1060   if (JNIHandles::is_local_handle(thread, obj) ||

  1061       JNIHandles::is_frame_handle(thread, obj))

  1062     ret = JNILocalRefType;

  1063   else if (JNIHandles::is_global_handle(obj))

  1064     ret = JNIGlobalRefType;

  1065   else if (JNIHandles::is_weak_global_handle(obj))

  1066     ret = JNIWeakGlobalRefType;

  1067   else

  1068     ret = JNIInvalidRefType;

  1069 #ifndef USDT2

  1070   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1071 #else /* USDT2 */

  1072   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1073                                       (void *) ret);

  1074 #endif /* USDT2 */

  1075   return ret;

  1076 JNI_END

  1079 class JNI_ArgumentPusher : public SignatureIterator {

  1080  protected:

  1081   JavaCallArguments*  _arguments;

  1083   virtual void get_bool   () = 0;

  1084   virtual void get_char   () = 0;

  1085   virtual void get_short  () = 0;

  1086   virtual void get_byte   () = 0;

  1087   virtual void get_int    () = 0;

  1088   virtual void get_long   () = 0;

  1089   virtual void get_float  () = 0;

  1090   virtual void get_double () = 0;

  1091   virtual void get_object () = 0;

  1093   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {

  1094     this->_return_type = T_ILLEGAL;

  1095     _arguments = NULL;

  1096   }

  1098  public:

  1099   virtual void iterate( uint64_t fingerprint ) = 0;

  1101   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }

  1103   inline void do_bool()                     { if (!is_return_type()) get_bool();   }

  1104   inline void do_char()                     { if (!is_return_type()) get_char();   }

  1105   inline void do_short()                    { if (!is_return_type()) get_short();  }

  1106   inline void do_byte()                     { if (!is_return_type()) get_byte();   }

  1107   inline void do_int()                      { if (!is_return_type()) get_int();    }

  1108   inline void do_long()                     { if (!is_return_type()) get_long();   }

  1109   inline void do_float()                    { if (!is_return_type()) get_float();  }

  1110   inline void do_double()                   { if (!is_return_type()) get_double(); }

  1111   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }

  1112   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array

  1113   inline void do_void()                     { }

  1115   JavaCallArguments* arguments()     { return _arguments; }

  1116   void push_receiver(Handle h)       { _arguments->push_oop(h); }

  1117 };

  1120 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1121  protected:

  1122   va_list _ap;

  1124   inline void get_bool()   { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg

  1125   inline void get_char()   { _arguments->push_int(va_arg(_ap, jint)); } // char is coerced to int when using va_arg

  1126   inline void get_short()  { _arguments->push_int(va_arg(_ap, jint)); } // short is coerced to int when using va_arg

  1127   inline void get_byte()   { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg

  1128   inline void get_int()    { _arguments->push_int(va_arg(_ap, jint)); }

  1130   // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests

  1132   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }

  1133   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg

  1134   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }

  1135   inline void get_object() { jobject l = va_arg(_ap, jobject);

  1136                              _arguments->push_oop(Handle((oop *)l, false)); }

  1138   inline void set_ap(va_list rap) {

  1139 #ifdef va_copy

  1140     va_copy(_ap, rap);

  1141 #elif defined (__va_copy)

  1142     __va_copy(_ap, rap);

  1143 #else

  1144     _ap = rap;

  1145 #endif

  1146   }

  1148  public:

  1149   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1150        : JNI_ArgumentPusher(signature) {

  1151     set_ap(rap);

  1152   }

  1153   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

  1154       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1155     set_ap(rap);

  1156   }

  1158   // Optimized path if we have the bitvector form of signature

  1159   void iterate( uint64_t fingerprint ) {

  1160     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments

  1161     else {

  1162       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1163                                   result_feature_mask);

  1165       assert(fingerprint, "Fingerprint should not be 0");

  1166       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1167       while ( 1 ) {

  1168         switch ( fingerprint & parameter_feature_mask ) {

  1169           case bool_parm:

  1170           case char_parm:

  1171           case short_parm:

  1172           case byte_parm:

  1173           case int_parm:

  1174             get_int();

  1175             break;

  1176           case obj_parm:

  1177             get_object();

  1178             break;

  1179           case long_parm:

  1180             get_long();

  1181             break;

  1182           case float_parm:

  1183             get_float();

  1184             break;

  1185           case double_parm:

  1186             get_double();

  1187             break;

  1188           case done_parm:

  1189             return;

  1190             break;

  1191           default:

  1192             ShouldNotReachHere();

  1193             break;

  1194         }

  1195         fingerprint >>= parameter_feature_size;

  1196       }

  1197     }

  1198   }

  1199 };

  1202 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1203  protected:

  1204   const jvalue *_ap;

  1206   inline void get_bool()   { _arguments->push_int((jint)(_ap++)->z); }

  1207   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }

  1208   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }

  1209   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }

  1210   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }

  1212   inline void get_long()   { _arguments->push_long((_ap++)->j);  }

  1213   inline void get_float()  { _arguments->push_float((_ap++)->f); }

  1214   inline void get_double() { _arguments->push_double((_ap++)->d);}

  1215   inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }

  1217   inline void set_ap(const jvalue *rap) { _ap = rap; }

  1219  public:

  1220   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)

  1221        : JNI_ArgumentPusher(signature) {

  1222     set_ap(rap);

  1223   }

  1224   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

  1225       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1226     set_ap(rap);

  1227   }

  1229   // Optimized path if we have the bitvector form of signature

  1230   void iterate( uint64_t fingerprint ) {

  1231     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments

  1232     else {

  1233       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1234                                   result_feature_mask);

  1235       assert(fingerprint, "Fingerprint should not be 0");

  1236       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1237       while ( 1 ) {

  1238         switch ( fingerprint & parameter_feature_mask ) {

  1239           case bool_parm:

  1240             get_bool();

  1241             break;

  1242           case char_parm:

  1243             get_char();

  1244             break;

  1245           case short_parm:

  1246             get_short();

  1247             break;

  1248           case byte_parm:

  1249             get_byte();

  1250             break;

  1251           case int_parm:

  1252             get_int();

  1253             break;

  1254           case obj_parm:

  1255             get_object();

  1256             break;

  1257           case long_parm:

  1258             get_long();

  1259             break;

  1260           case float_parm:

  1261             get_float();

  1262             break;

  1263           case double_parm:

  1264             get_double();

  1265             break;

  1266           case done_parm:

  1267             return;

  1268             break;

  1269           default:

  1270             ShouldNotReachHere();

  1271             break;

  1272         }

  1273         fingerprint >>= parameter_feature_size;

  1274       }

  1275     }

  1276   }

  1277 };

  1280 enum JNICallType {

  1281   JNI_STATIC,

  1282   JNI_VIRTUAL,

  1283   JNI_NONVIRTUAL

  1284 };

  1288 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1289   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1291   // Create object to hold arguments for the JavaCall, and associate it with

  1292   // the jni parser

  1293   ResourceMark rm(THREAD);

  1294   int number_of_parameters = method->size_of_parameters();

  1295   JavaCallArguments java_args(number_of_parameters);

  1296   args->set_java_argument_object(&java_args);

  1298   assert(method->is_static(), "method should be static");

  1300   // Fill out JavaCallArguments object

  1301   args->iterate( Fingerprinter(method).fingerprint() );

  1302   // Initialize result type

  1303   result->set_type(args->get_ret_type());

  1305   // Invoke the method. Result is returned as oop.

  1306   JavaCalls::call(result, method, &java_args, CHECK);

  1308   // Convert result

  1309   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1310     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1311   }

  1312 }

  1315 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1316   oop recv = JNIHandles::resolve(receiver);

  1317   if (recv == NULL) {

  1318     THROW(vmSymbols::java_lang_NullPointerException());

  1319   }

  1320   Handle h_recv(THREAD, recv);

  1322   int number_of_parameters;

  1323   Method* selected_method;

  1324   {

  1325     Method* m = Method::resolve_jmethod_id(method_id);

  1326     number_of_parameters = m->size_of_parameters();

  1327     Klass* holder = m->method_holder();

  1328     if (call_type != JNI_VIRTUAL) {

  1329         selected_method = m;

  1330     } else if (!m->has_itable_index()) {

  1331       // non-interface call -- for that little speed boost, don't handlize

  1332       debug_only(No_Safepoint_Verifier nosafepoint;)

  1333       // jni_GetMethodID makes sure class is linked and initialized

  1334       // so m should have a valid vtable index.

  1335       assert(m->valid_vtable_index(), "no valid vtable index");

  1336       int vtbl_index = m->vtable_index();

  1337       if (vtbl_index != Method::nonvirtual_vtable_index) {

  1338         Klass* k = h_recv->klass();

  1339         // k might be an arrayKlassOop but all vtables start at

  1340         // the same place. The cast is to avoid virtual call and assertion.

  1341         InstanceKlass *ik = (InstanceKlass*)k;

  1342         selected_method = ik->method_at_vtable(vtbl_index);

  1343       } else {

  1344         // final method

  1345         selected_method = m;

  1346       }

  1347     } else {

  1348       // interface call

  1349       KlassHandle h_holder(THREAD, holder);

  1351       int itbl_index = m->itable_index();

  1352       Klass* k = h_recv->klass();

  1353       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1354     }

  1355   }

  1357   methodHandle method(THREAD, selected_method);

  1359   // Create object to hold arguments for the JavaCall, and associate it with

  1360   // the jni parser

  1361   ResourceMark rm(THREAD);

  1362   JavaCallArguments java_args(number_of_parameters);

  1363   args->set_java_argument_object(&java_args);

  1365   // handle arguments

  1366   assert(!method->is_static(), "method should not be static");

  1367   args->push_receiver(h_recv); // Push jobject handle

  1369   // Fill out JavaCallArguments object

  1370   args->iterate( Fingerprinter(method).fingerprint() );

  1371   // Initialize result type

  1372   result->set_type(args->get_ret_type());

  1374   // Invoke the method. Result is returned as oop.

  1375   JavaCalls::call(result, method, &java_args, CHECK);

  1377   // Convert result

  1378   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1379     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1380   }

  1381 }

  1384 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1385   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1386   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1387   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1388   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1389   return ih;

  1390 }

  1392 #ifndef USDT2

  1393 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1394 #else /* USDT2 */

  1395 DT_RETURN_MARK_DECL(AllocObject, jobject

  1396                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1397 #endif /* USDT2 */

  1399 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1400   JNIWrapper("AllocObject");

  1402 #ifndef USDT2

  1403   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1404 #else /* USDT2 */

  1405   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1406                                 env, clazz);

  1407 #endif /* USDT2 */

  1408   jobject ret = NULL;

  1409   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1411   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1412   ret = JNIHandles::make_local(env, i);

  1413   return ret;

  1414 JNI_END

  1416 #ifndef USDT2

  1417 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1418 #else /* USDT2 */

  1419 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1420                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1421 #endif /* USDT2 */

  1423 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1424   JNIWrapper("NewObjectA");

  1425 #ifndef USDT2

  1426   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1427 #else /* USDT2 */

  1428   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1429                                env, clazz, (uintptr_t) methodID);

  1430 #endif /* USDT2 */

  1431   jobject obj = NULL;

  1432   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1434   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1435   obj = JNIHandles::make_local(env, i);

  1436   JavaValue jvalue(T_VOID);

  1437   JNI_ArgumentPusherArray ap(methodID, args);

  1438   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1439   return obj;

  1440 JNI_END

  1442 #ifndef USDT2

  1443 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1444 #else /* USDT2 */

  1445 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1446                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1447 #endif /* USDT2 */

  1449 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1450   JNIWrapper("NewObjectV");

  1451 #ifndef USDT2

  1452   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1453 #else /* USDT2 */

  1454   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1455                                env, clazz, (uintptr_t) methodID);

  1456 #endif /* USDT2 */

  1457   jobject obj = NULL;

  1458   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1460   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1461   obj = JNIHandles::make_local(env, i);

  1462   JavaValue jvalue(T_VOID);

  1463   JNI_ArgumentPusherVaArg ap(methodID, args);

  1464   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1465   return obj;

  1466 JNI_END

  1468 #ifndef USDT2

  1469 DT_RETURN_MARK_DECL(NewObject, jobject);

  1470 #else /* USDT2 */

  1471 DT_RETURN_MARK_DECL(NewObject, jobject

  1472                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1473 #endif /* USDT2 */

  1475 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1476   JNIWrapper("NewObject");

  1477 #ifndef USDT2

  1478   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1479 #else /* USDT2 */

  1480   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1481                               env, clazz, (uintptr_t) methodID);

  1482 #endif /* USDT2 */

  1483   jobject obj = NULL;

  1484   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1486   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1487   obj = JNIHandles::make_local(env, i);

  1488   va_list args;

  1489   va_start(args, methodID);

  1490   JavaValue jvalue(T_VOID);

  1491   JNI_ArgumentPusherVaArg ap(methodID, args);

  1492   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1493   va_end(args);

  1494   return obj;

  1495 JNI_END

  1498 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1499   JNIWrapper("GetObjectClass");

  1500 #ifndef USDT2

  1501   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1502 #else /* USDT2 */

  1503   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1504                                    env, obj);

  1505 #endif /* USDT2 */

  1506   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1507   jclass ret =

  1508     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1509 #ifndef USDT2

  1510   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1511 #else /* USDT2 */

  1512   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1513                                     ret);

  1514 #endif /* USDT2 */

  1515   return ret;

  1516 JNI_END

  1518 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1519   JNIWrapper("IsInstanceOf");

  1520 #ifndef USDT2

  1521   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1522 #else /* USDT2 */

  1523   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1524                                  env, obj, clazz);

  1525 #endif /* USDT2 */

  1526   jboolean ret = JNI_TRUE;

  1527   if (obj != NULL) {

  1528     ret = JNI_FALSE;

  1529     Klass* k = java_lang_Class::as_Klass(

  1530       JNIHandles::resolve_non_null(clazz));

  1531     if (k != NULL) {

  1532       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1533     }

  1534   }

  1535 #ifndef USDT2

  1536   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1537 #else /* USDT2 */

  1538   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1539                                   ret);

  1540 #endif /* USDT2 */

  1541   return ret;

  1542 JNI_END

  1545 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1546                                const char *sig, bool is_static, TRAPS) {

  1547   // %%%% This code should probably just call into a method in the LinkResolver

  1548   //

  1549   // The class should have been loaded (we have an instance of the class

  1550   // passed in) so the method and signature should already be in the symbol

  1551   // table.  If they're not there, the method doesn't exist.

  1552   const char *name_to_probe = (name_str == NULL)

  1553                         ? vmSymbols::object_initializer_name()->as_C_string()

  1554                         : name_str;

  1555   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1556   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1558   if (name == NULL || signature == NULL) {

  1559     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1560   }

  1562   // Throw a NoSuchMethodError exception if we have an instance of a

  1563   // primitive java.lang.Class

  1564   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

  1565     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1566   }

  1568   KlassHandle klass(THREAD,

  1569                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1571   // Make sure class is linked and initialized before handing id's out to

  1572   // Method*s.

  1573   klass()->initialize(CHECK_NULL);

  1575   Method* m;

  1576   if (name == vmSymbols::object_initializer_name() ||

  1577       name == vmSymbols::class_initializer_name()) {

  1578     // Never search superclasses for constructors

  1579     if (klass->oop_is_instance()) {

  1580       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1581     } else {

  1582       m = NULL;

  1583     }

  1584   } else {

  1585     m = klass->lookup_method(name, signature);

  1586     if (m == NULL &&  klass->oop_is_instance()) {

  1587       m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);

  1588     }

  1589   }

  1590   if (m == NULL || (m->is_static() != is_static)) {

  1591     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1592   }

  1593   return m->jmethod_id();

  1594 }

  1597 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1598           const char *name, const char *sig))

  1599   JNIWrapper("GetMethodID");

  1600 #ifndef USDT2

  1601   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1602 #else /* USDT2 */

  1603   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1604                                 env, clazz, (char *) name, (char *) sig);

  1605 #endif /* USDT2 */

  1606   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1607 #ifndef USDT2

  1608   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1609 #else /* USDT2 */

  1610   HOTSPOT_JNI_GETMETHODID_RETURN(

  1611                                  (uintptr_t) ret);

  1612 #endif /* USDT2 */

  1613   return ret;

  1614 JNI_END

  1617 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1618           const char *name, const char *sig))

  1619   JNIWrapper("GetStaticMethodID");

  1620 #ifndef USDT2

  1621   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1622 #else /* USDT2 */

  1623   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1624                                       env, (char *) clazz, (char *) name, (char *)sig);

  1625 #endif /* USDT2 */

  1626   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1627 #ifndef USDT2

  1628   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1629 #else /* USDT2 */

  1630   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1631                                        (uintptr_t) ret);

  1632 #endif /* USDT2 */

  1633   return ret;

  1634 JNI_END

  1638 //

  1639 // Calling Methods

  1640 //

  1642 #ifndef USDT2

  1643 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1644 \

  1645   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

  1646   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\

  1647   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1648 \

  1649 JNI_ENTRY(ResultType, \

  1650           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1651   JNIWrapper("Call" XSTR(Result) "Method"); \

  1652 \

  1653   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1654   ResultType ret = 0;\

  1655   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1656                      (const ResultType&)ret);\

  1657 \

  1658   va_list args; \

  1659   va_start(args, methodID); \

  1660   JavaValue jvalue(Tag); \

  1661   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1662   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1663   va_end(args); \

  1664   ret = jvalue.get_##ResultType(); \

  1665   return ret;\

  1666 JNI_END \

  1667 \

  1668 \

  1669 JNI_ENTRY(ResultType, \

  1670           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1671   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1672 \

  1673   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1674   ResultType ret = 0;\

  1675   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1676                      (const ResultType&)ret);\

  1677 \

  1678   JavaValue jvalue(Tag); \

  1679   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1680   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1681   ret = jvalue.get_##ResultType(); \

  1682   return ret;\

  1683 JNI_END \

  1684 \

  1685 \

  1686 JNI_ENTRY(ResultType, \

  1687           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1688   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1689   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1690   ResultType ret = 0;\

  1691   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1692                      (const ResultType&)ret);\

  1693 \

  1694   JavaValue jvalue(Tag); \

  1695   JNI_ArgumentPusherArray ap(methodID, args); \

  1696   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1697   ret = jvalue.get_##ResultType(); \

  1698   return ret;\

  1699 JNI_END

  1701 // the runtime type of subword integral basic types is integer

  1702 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1703 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1704 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1705 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1707 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1708 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1709 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1710 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1711 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1713 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1714 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1715 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1717 #else /* USDT2 */

  1719 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1720                           , EntryProbe, ReturnProbe)    \

  1721 \

  1722   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1723                           , ReturnProbe);                          \

  1724 \

  1725 JNI_ENTRY(ResultType, \

  1726           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1727   JNIWrapper("Call" XSTR(Result) "Method"); \

  1728 \

  1729   EntryProbe; \

  1730   ResultType ret = 0;\

  1731   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1732                      (const ResultType&)ret);\

  1733 \

  1734   va_list args; \

  1735   va_start(args, methodID); \

  1736   JavaValue jvalue(Tag); \

  1737   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1738   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1739   va_end(args); \

  1740   ret = jvalue.get_##ResultType(); \

  1741   return ret;\

  1742 JNI_END

  1744 // the runtime type of subword integral basic types is integer

  1745 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1746                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1747                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1748 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

  1749                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1750                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1751 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

  1752                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1753                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1754 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

  1755                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1756                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1758 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

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

  1760                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1761 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

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

  1763                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1764 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

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

  1766                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1767 // Float and double probes don't return value because dtrace doesn't currently support it

  1768 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1769                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1770                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1771 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

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

  1773                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1775 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1776                           , EntryProbe, ReturnProbe)    \

  1777 \

  1778   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1779                           , ReturnProbe);                          \

  1780 \

  1781 JNI_ENTRY(ResultType, \

  1782           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1783   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1784 \

  1785   EntryProbe;\

  1786   ResultType ret = 0;\

  1787   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1788                      (const ResultType&)ret);\

  1789 \

  1790   JavaValue jvalue(Tag); \

  1791   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1792   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1793   ret = jvalue.get_##ResultType(); \

  1794   return ret;\

  1795 JNI_END

  1797 // the runtime type of subword integral basic types is integer

  1798 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

  1799                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1800                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1801 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

  1802                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1803                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1804 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

  1805                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1806                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1807 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

  1808                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1809                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1811 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

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

  1813                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1814 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

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

  1816                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1817 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1819                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1820 // Float and double probes don't return value because dtrace doesn't currently support it

  1821 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1822                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1823                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1824 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

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

  1826                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1828 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1829                           , EntryProbe, ReturnProbe)    \

  1830 \

  1831   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1832                           , ReturnProbe);                          \

  1833 \

  1834 JNI_ENTRY(ResultType, \

  1835           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1836   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1837   EntryProbe; \

  1838   ResultType ret = 0;\

  1839   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1840                      (const ResultType&)ret);\

  1841 \

  1842   JavaValue jvalue(Tag); \

  1843   JNI_ArgumentPusherArray ap(methodID, args); \

  1844   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1845   ret = jvalue.get_##ResultType(); \

  1846   return ret;\

  1847 JNI_END

  1849 // the runtime type of subword integral basic types is integer

  1850 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

  1851                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1852                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1853 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

  1854                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1855                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1856 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

  1857                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1858                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1859 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

  1860                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1861                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1863 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

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

  1865                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1866 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

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

  1868                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1869 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

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

  1871                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1872 // Float and double probes don't return value because dtrace doesn't currently support it

  1873 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1874                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1875                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1876 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

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

  1878                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1880 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1881 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1882 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1884 #endif /* USDT2 */

  1886 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1887   JNIWrapper("CallVoidMethod");

  1888 #ifndef USDT2

  1889   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1890 #else /* USDT2 */

  1891   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1892                                    env, obj, (uintptr_t) methodID);

  1893 #endif /* USDT2 */

  1894   DT_VOID_RETURN_MARK(CallVoidMethod);

  1896   va_list args;

  1897   va_start(args, methodID);

  1898   JavaValue jvalue(T_VOID);

  1899   JNI_ArgumentPusherVaArg ap(methodID, args);

  1900   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1901   va_end(args);

  1902 JNI_END

  1905 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1906   JNIWrapper("CallVoidMethodV");

  1907 #ifndef USDT2

  1908   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1909 #else /* USDT2 */

  1910   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1911                                     env, obj, (uintptr_t) methodID);

  1912 #endif /* USDT2 */

  1913   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1915   JavaValue jvalue(T_VOID);

  1916   JNI_ArgumentPusherVaArg ap(methodID, args);

  1917   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1918 JNI_END

  1921 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1922   JNIWrapper("CallVoidMethodA");

  1923 #ifndef USDT2

  1924   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1925 #else /* USDT2 */

  1926   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1927                                     env, obj, (uintptr_t) methodID);

  1928 #endif /* USDT2 */

  1929   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1931   JavaValue jvalue(T_VOID);

  1932   JNI_ArgumentPusherArray ap(methodID, args);

  1933   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1934 JNI_END

  1937 #ifndef USDT2

  1938 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1939 \

  1940   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

  1941   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\

  1942   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1943 \

  1944 JNI_ENTRY(ResultType, \

  1945           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1946   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1947 \

  1948   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1949   ResultType ret;\

  1950   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1951                      (const ResultType&)ret);\

  1952 \

  1953   va_list args; \

  1954   va_start(args, methodID); \

  1955   JavaValue jvalue(Tag); \

  1956   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1957   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1958   va_end(args); \

  1959   ret = jvalue.get_##ResultType(); \

  1960   return ret;\

  1961 JNI_END \

  1962 \

  1963 JNI_ENTRY(ResultType, \

  1964           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  1965   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  1966   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  1967   ResultType ret;\

  1968   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  1969                      (const ResultType&)ret);\

  1970 \

  1971   JavaValue jvalue(Tag); \

  1972   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1973   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1974   ret = jvalue.get_##ResultType(); \

  1975   return ret;\

  1976 JNI_END \

  1977 \

  1978 JNI_ENTRY(ResultType, \

  1979           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  1980   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  1981   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  1982   ResultType ret;\

  1983   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  1984                      (const ResultType&)ret);\

  1985 \

  1986   JavaValue jvalue(Tag); \

  1987   JNI_ArgumentPusherArray ap(methodID, args); \

  1988   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1989   ret = jvalue.get_##ResultType(); \

  1990   return ret;\

  1991 JNI_END

  1993 // the runtime type of subword integral basic types is integer

  1994 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  1995 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  1996 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  1997 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  1999 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2000 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2001 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2002 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2003 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2006 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2007 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2008 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2010 #else /* USDT2 */

  2012 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2013                                     , EntryProbe, ReturnProbe)      \

  2014 \

  2015   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2016                           , ReturnProbe);\

  2017 \

  2018 JNI_ENTRY(ResultType, \

  2019           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2020   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2021 \

  2022   EntryProbe;\

  2023   ResultType ret;\

  2024   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2025                      (const ResultType&)ret);\

  2026 \

  2027   va_list args; \

  2028   va_start(args, methodID); \

  2029   JavaValue jvalue(Tag); \

  2030   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2031   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2032   va_end(args); \

  2033   ret = jvalue.get_##ResultType(); \

  2034   return ret;\

  2035 JNI_END

  2037 // the runtime type of subword integral basic types is integer

  2038 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2039                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2040                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2041 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

  2042                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2043                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2044 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

  2045                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2046                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2047 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

  2048                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2049                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2051 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

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

  2053                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2054 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

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

  2056                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2057 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

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

  2059 // Float and double probes don't return value because dtrace doesn't currently support it

  2060                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2061 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2062                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2063                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2064 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

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

  2066                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2068 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2069                                     , EntryProbe, ReturnProbe)      \

  2070 \

  2071   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2072                           , ReturnProbe);\

  2073 \

  2074 JNI_ENTRY(ResultType, \

  2075           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2076   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2077 \

  2078   EntryProbe;\

  2079   ResultType ret;\

  2080   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2081                      (const ResultType&)ret);\

  2082 \

  2083   JavaValue jvalue(Tag); \

  2084   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2085   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2086   ret = jvalue.get_##ResultType(); \

  2087   return ret;\

  2088 JNI_END

  2090 // the runtime type of subword integral basic types is integer

  2091 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

  2092                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2093                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2094 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

  2095                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2096                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2097 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

  2098                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2099                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2100 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

  2101                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2102                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2104 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

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

  2106                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2107 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

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

  2109                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2110 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

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

  2112 // Float and double probes don't return value because dtrace doesn't currently support it

  2113                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2114 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2115                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2116                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2117 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

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

  2119                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2121 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2122                                     , EntryProbe, ReturnProbe)      \

  2123 \

  2124   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2125                           , ReturnProbe);\

  2126 \

  2127 JNI_ENTRY(ResultType, \

  2128           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2129   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2130 \

  2131   EntryProbe;\

  2132   ResultType ret;\

  2133   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2134                      (const ResultType&)ret);\

  2135 \

  2136   JavaValue jvalue(Tag); \

  2137   JNI_ArgumentPusherArray ap(methodID, args); \

  2138   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2139   ret = jvalue.get_##ResultType(); \

  2140   return ret;\

  2141 JNI_END

  2143 // the runtime type of subword integral basic types is integer

  2144 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

  2145                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2146                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2147 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

  2148                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2149                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2150 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

  2151                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2152                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2153 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

  2154                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2155                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2157 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

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

  2159                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2160 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

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

  2162                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2163 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2165 // Float and double probes don't return value because dtrace doesn't currently support it

  2166                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2167 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2168                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2169                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2170 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

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

  2172                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2174 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2175                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2176 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2177                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2178 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2179                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2180 #endif /* USDT2 */

  2182 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2183   JNIWrapper("CallNonvirtualVoidMethod");

  2185 #ifndef USDT2

  2186   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2187                env, obj, cls, methodID);

  2188 #else /* USDT2 */

  2189   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2190                env, obj, cls, (uintptr_t) methodID);

  2191 #endif /* USDT2 */

  2192   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2194   va_list args;

  2195   va_start(args, methodID);

  2196   JavaValue jvalue(T_VOID);

  2197   JNI_ArgumentPusherVaArg ap(methodID, args);

  2198   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2199   va_end(args);

  2200 JNI_END

  2203 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2204   JNIWrapper("CallNonvirtualVoidMethodV");

  2206 #ifndef USDT2

  2207   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2208                env, obj, cls, methodID);

  2209 #else /* USDT2 */

  2210   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2211                env, obj, cls, (uintptr_t) methodID);

  2212 #endif /* USDT2 */

  2213   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2215   JavaValue jvalue(T_VOID);

  2216   JNI_ArgumentPusherVaArg ap(methodID, args);

  2217   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2218 JNI_END

  2221 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2222   JNIWrapper("CallNonvirtualVoidMethodA");

  2223 #ifndef USDT2

  2224   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2225                 env, obj, cls, methodID);

  2226 #else /* USDT2 */

  2227   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2228                 env, obj, cls, (uintptr_t) methodID);

  2229 #endif /* USDT2 */

  2230   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2231   JavaValue jvalue(T_VOID);

  2232   JNI_ArgumentPusherArray ap(methodID, args);

  2233   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2234 JNI_END

  2237 #ifndef USDT2

  2238 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2239 \

  2240   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

  2241   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\

  2242   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2243 \

  2244 JNI_ENTRY(ResultType, \

  2245           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2246   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2247 \

  2248   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2249   ResultType ret = 0;\

  2250   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2251                      (const ResultType&)ret);\

  2252 \

  2253   va_list args; \

  2254   va_start(args, methodID); \

  2255   JavaValue jvalue(Tag); \

  2256   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2257   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2258   va_end(args); \

  2259   ret = jvalue.get_##ResultType(); \

  2260   return ret;\

  2261 JNI_END \

  2262 \

  2263 JNI_ENTRY(ResultType, \

  2264           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2265   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2266   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2267   ResultType ret = 0;\

  2268   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2269                      (const ResultType&)ret);\

  2270 \

  2271   JavaValue jvalue(Tag); \

  2272   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2273   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2274   ret = jvalue.get_##ResultType(); \

  2275   return ret;\

  2276 JNI_END \

  2277 \

  2278 JNI_ENTRY(ResultType, \

  2279           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2280   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2281   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2282   ResultType ret = 0;\

  2283   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2284                      (const ResultType&)ret);\

  2285 \

  2286   JavaValue jvalue(Tag); \

  2287   JNI_ArgumentPusherArray ap(methodID, args); \

  2288   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2289   ret = jvalue.get_##ResultType(); \

  2290   return ret;\

  2291 JNI_END

  2293 // the runtime type of subword integral basic types is integer

  2294 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2295 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2296 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2297 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2299 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2300 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2301 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2302 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2303 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2306 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2307 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2308 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2310 #else /* USDT2 */

  2312 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2313                                 , EntryProbe, ResultProbe) \

  2314 \

  2315   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2316                           , ResultProbe);                               \

  2317 \

  2318 JNI_ENTRY(ResultType, \

  2319           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2320   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2321 \

  2322   EntryProbe; \

  2323   ResultType ret = 0;\

  2324   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2325                      (const ResultType&)ret);\

  2326 \

  2327   va_list args; \

  2328   va_start(args, methodID); \

  2329   JavaValue jvalue(Tag); \

  2330   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2331   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2332   va_end(args); \

  2333   ret = jvalue.get_##ResultType(); \

  2334   return ret;\

  2335 JNI_END

  2337 // the runtime type of subword integral basic types is integer

  2338 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2339                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2340                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2341 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

  2342                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2343                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2344 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

  2345                         , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2346                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2347 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

  2348                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2349                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2351 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

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

  2353                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2354 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

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

  2356                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2357 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2359                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2360 // Float and double probes don't return value because dtrace doesn't currently support it

  2361 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2362                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2363                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2364 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

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

  2366                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2368 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2369                                 , EntryProbe, ResultProbe) \

  2370 \

  2371   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2372                           , ResultProbe);                               \

  2373 \

  2374 JNI_ENTRY(ResultType, \

  2375           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2376   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2377 \

  2378   EntryProbe; \

  2379   ResultType ret = 0;\

  2380   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2381                      (const ResultType&)ret);\

  2382 \

  2383   JavaValue jvalue(Tag); \

  2384   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2385   /* Make sure class is initialized before trying to invoke its method */ \

  2386   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2387   k()->initialize(CHECK_0); \

  2388   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2389   va_end(args); \

  2390   ret = jvalue.get_##ResultType(); \

  2391   return ret;\

  2392 JNI_END

  2394 // the runtime type of subword integral basic types is integer

  2395 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

  2396                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2397                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2398 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

  2399                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2400                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2401 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

  2402                         , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2403                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2404 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

  2405                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2406                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2408 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

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

  2410                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2411 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

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

  2413                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2414 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

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

  2416                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2417 // Float and double probes don't return value because dtrace doesn't currently support it

  2418 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2419                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2420                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2421 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

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

  2423                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2425 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2426                                 , EntryProbe, ResultProbe) \

  2427 \

  2428   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2429                           , ResultProbe);                               \

  2430 \

  2431 JNI_ENTRY(ResultType, \

  2432           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2433   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2434 \

  2435   EntryProbe; \

  2436   ResultType ret = 0;\

  2437   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2438                      (const ResultType&)ret);\

  2439 \

  2440   JavaValue jvalue(Tag); \

  2441   JNI_ArgumentPusherArray ap(methodID, args); \

  2442   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2443   ret = jvalue.get_##ResultType(); \

  2444   return ret;\

  2445 JNI_END

  2447 // the runtime type of subword integral basic types is integer

  2448 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

  2449                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2450                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2451 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

  2452                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2453                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2454 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

  2455                         , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2456                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2457 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

  2458                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2459                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2461 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

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

  2463                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2464 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

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

  2466                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2467 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

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

  2469                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2470 // Float and double probes don't return value because dtrace doesn't currently support it

  2471 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2472                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2473                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2474 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

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

  2476                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2478 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2479                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2480 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2481                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2482 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2483                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2484 #endif /* USDT2 */

  2486 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2487   JNIWrapper("CallStaticVoidMethod");

  2488 #ifndef USDT2

  2489   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2490 #else /* USDT2 */

  2491   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2492                                          env, cls, (uintptr_t) methodID);

  2493 #endif /* USDT2 */

  2494   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2496   va_list args;

  2497   va_start(args, methodID);

  2498   JavaValue jvalue(T_VOID);

  2499   JNI_ArgumentPusherVaArg ap(methodID, args);

  2500   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2501   va_end(args);

  2502 JNI_END

  2505 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2506   JNIWrapper("CallStaticVoidMethodV");

  2507 #ifndef USDT2

  2508   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2509 #else /* USDT2 */

  2510   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2511                                           env, cls, (uintptr_t) methodID);

  2512 #endif /* USDT2 */

  2513   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2515   JavaValue jvalue(T_VOID);

  2516   JNI_ArgumentPusherVaArg ap(methodID, args);

  2517   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2518 JNI_END

  2521 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2522   JNIWrapper("CallStaticVoidMethodA");

  2523 #ifndef USDT2

  2524   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2525 #else /* USDT2 */

  2526   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2527                                           env, cls, (uintptr_t) methodID);

  2528 #endif /* USDT2 */

  2529   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2531   JavaValue jvalue(T_VOID);

  2532   JNI_ArgumentPusherArray ap(methodID, args);

  2533   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2534 JNI_END

  2537 //

  2538 // Accessing Fields

  2539 //

  2542 #ifndef USDT2

  2543 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2544 #else /* USDT2 */

  2545 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2546                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2547 #endif /* USDT2 */

  2549 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2550           const char *name, const char *sig))

  2551   JNIWrapper("GetFieldID");

  2552 #ifndef USDT2

  2553   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2554 #else /* USDT2 */

  2555   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2556                                env, clazz, (char *) name, (char *) sig);

  2557 #endif /* USDT2 */

  2558   jfieldID ret = 0;

  2559   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2561   // The class should have been loaded (we have an instance of the class

  2562   // passed in) so the field and signature should already be in the symbol

  2563   // table.  If they're not there, the field doesn't exist.

  2564   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2565   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2566   if (fieldname == NULL || signame == NULL) {

  2567     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2568   }

  2569   KlassHandle k(THREAD,

  2570                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2571   // Make sure class is initialized before handing id's out to fields

  2572   k()->initialize(CHECK_NULL);

  2574   fieldDescriptor fd;

  2575   if (!k()->oop_is_instance() ||

  2576       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2577     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2578   }

  2580   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2581   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2582   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2583   return ret;

  2584 JNI_END

  2587 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2588   JNIWrapper("GetObjectField");

  2589 #ifndef USDT2

  2590   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2591 #else /* USDT2 */

  2592   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2593                                    env, obj, (uintptr_t) fieldID);

  2594 #endif /* USDT2 */

  2595   oop o = JNIHandles::resolve_non_null(obj);

  2596   Klass* k = o->klass();

  2597   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2598   // Keep JVMTI addition small and only check enabled flag here.

  2599   // jni_GetField_probe() assumes that is okay to create handles.

  2600   if (JvmtiExport::should_post_field_access()) {

  2601     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2602   }

  2603   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2604 #if INCLUDE_ALL_GCS

  2605   // If G1 is enabled and we are accessing the value of the referent

  2606   // field in a reference object then we need to register a non-null

  2607   // referent with the SATB barrier.

  2608   if (UseG1GC) {

  2609     bool needs_barrier = false;

  2611     if (ret != NULL &&

  2612         offset == java_lang_ref_Reference::referent_offset &&

  2613         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2614       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2615       needs_barrier = true;

  2616     }

  2618     if (needs_barrier) {

  2619       oop referent = JNIHandles::resolve(ret);

  2620       G1SATBCardTableModRefBS::enqueue(referent);

  2621     }

  2622   }

  2623 #endif // INCLUDE_ALL_GCS

  2624 #ifndef USDT2

  2625   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2626 #else /* USDT2 */

  2627 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2628                                   ret);

  2629 #endif /* USDT2 */

  2630   return ret;

  2631 JNI_END

  2634 #ifndef USDT2

  2635 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2636 \

  2637   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2638 \

  2639 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2640   JNIWrapper("Get" XSTR(Result) "Field"); \

  2641 \

  2642   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2643   Return ret = 0;\

  2644   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2645 \

  2646   oop o = JNIHandles::resolve_non_null(obj); \

  2647   Klass* k = o->klass(); \

  2648   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2649   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2650   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2651   /* and creates a ResetNoHandleMark.                                   */ \

  2652   if (JvmtiExport::should_post_field_access()) { \

  2653     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2654   } \

  2655   ret = o->Fieldname##_field(offset); \

  2656   return ret; \

  2657 JNI_END

  2659 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2660 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2661 DEFINE_GETFIELD(jchar,    char,   Char)

  2662 DEFINE_GETFIELD(jshort,   short,  Short)

  2663 DEFINE_GETFIELD(jint,     int,    Int)

  2664 DEFINE_GETFIELD(jlong,    long,   Long)

  2665 DEFINE_GETFIELD(jfloat,   float,  Float)

  2666 DEFINE_GETFIELD(jdouble,  double, Double)

  2668 #else /* USDT2 */

  2670 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2671   , EntryProbe, ReturnProbe) \

  2672 \

  2673   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2674   , ReturnProbe); \

  2675 \

  2676 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2677   JNIWrapper("Get" XSTR(Result) "Field"); \

  2678 \

  2679   EntryProbe; \

  2680   Return ret = 0;\

  2681   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2682 \

  2683   oop o = JNIHandles::resolve_non_null(obj); \

  2684   Klass* k = o->klass(); \

  2685   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2686   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2687   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2688   /* and creates a ResetNoHandleMark.                                   */ \

  2689   if (JvmtiExport::should_post_field_access()) { \

  2690     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2691   } \

  2692   ret = o->Fieldname##_field(offset); \

  2693   return ret; \

  2694 JNI_END

  2696 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2697                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2698                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2699 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2700                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2701                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2702 DEFINE_GETFIELD(jchar,    char,   Char

  2703                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2704                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2705 DEFINE_GETFIELD(jshort,   short,  Short

  2706                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2707                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2708 DEFINE_GETFIELD(jint,     int,    Int

  2709                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2710                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2711 DEFINE_GETFIELD(jlong,    long,   Long

  2712                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2713                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2714 // Float and double probes don't return value because dtrace doesn't currently support it

  2715 DEFINE_GETFIELD(jfloat,   float,  Float

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

  2717                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2718 DEFINE_GETFIELD(jdouble,  double, Double

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

  2720                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2721 #endif /* USDT2 */

  2723 address jni_GetBooleanField_addr() {

  2724   return (address)jni_GetBooleanField;

  2725 }

  2726 address jni_GetByteField_addr() {

  2727   return (address)jni_GetByteField;

  2728 }

  2729 address jni_GetCharField_addr() {

  2730   return (address)jni_GetCharField;

  2731 }

  2732 address jni_GetShortField_addr() {

  2733   return (address)jni_GetShortField;

  2734 }

  2735 address jni_GetIntField_addr() {

  2736   return (address)jni_GetIntField;

  2737 }

  2738 address jni_GetLongField_addr() {

  2739   return (address)jni_GetLongField;

  2740 }

  2741 address jni_GetFloatField_addr() {

  2742   return (address)jni_GetFloatField;

  2743 }

  2744 address jni_GetDoubleField_addr() {

  2745   return (address)jni_GetDoubleField;

  2746 }

  2748 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2749   JNIWrapper("SetObjectField");

  2750 #ifndef USDT2

  2751   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2752 #else /* USDT2 */

  2753   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2754                                    env, obj, (uintptr_t) fieldID, value);

  2755 #endif /* USDT2 */

  2756   oop o = JNIHandles::resolve_non_null(obj);

  2757   Klass* k = o->klass();

  2758   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2759   // Keep JVMTI addition small and only check enabled flag here.

  2760   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2761   // and creates a ResetNoHandleMark.

  2762   if (JvmtiExport::should_post_field_modification()) {

  2763     jvalue field_value;

  2764     field_value.l = value;

  2765     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2766   }

  2767   o->obj_field_put(offset, JNIHandles::resolve(value));

  2768 #ifndef USDT2

  2769   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2770 #else /* USDT2 */

  2771   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2772 );

  2773 #endif /* USDT2 */

  2774 JNI_END

  2776 #ifndef USDT2

  2777 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2778 \

  2779 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2780   JNIWrapper("Set" XSTR(Result) "Field"); \

  2781 \

  2782   FP_SELECT_##Result( \

  2783     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2784     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2785 \

  2786   oop o = JNIHandles::resolve_non_null(obj); \

  2787   Klass* k = o->klass(); \

  2788   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2789   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2790   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2791   /* and creates a ResetNoHandleMark.                                   */ \

  2792   if (JvmtiExport::should_post_field_modification()) { \

  2793     jvalue field_value; \

  2794     field_value.unionType = value; \

  2795     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2796   } \

  2797   o->Fieldname##_field_put(offset, value); \

  2798   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2799 JNI_END

  2801 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2802 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2803 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2804 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2805 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2806 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2807 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2808 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2810 #else /* USDT2 */

  2812 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2813                         , EntryProbe, ReturnProbe) \

  2814 \

  2815 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2816   JNIWrapper("Set" XSTR(Result) "Field"); \

  2817 \

  2818   EntryProbe; \

  2819 \

  2820   oop o = JNIHandles::resolve_non_null(obj); \

  2821   Klass* k = o->klass(); \

  2822   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2823   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2824   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2825   /* and creates a ResetNoHandleMark.                                   */ \

  2826   if (JvmtiExport::should_post_field_modification()) { \

  2827     jvalue field_value; \

  2828     field_value.unionType = value; \

  2829     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2830   } \

  2831   if (SigType == 'Z') { value = ((jboolean)value) & 1; } \

  2832   o->Fieldname##_field_put(offset, value); \

  2833   ReturnProbe; \

  2834 JNI_END

  2836 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2837                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2838                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2839 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2840                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2841                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2842 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2843                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2844                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2845 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2846                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2847                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2848 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

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

  2850                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2851 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

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

  2853                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2854 // Float and double probes don't return value because dtrace doesn't currently support it

  2855 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2856                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2857                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2858 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2859                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2860                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2861 #endif /* USDT2 */

  2863 #ifndef USDT2

  2864 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2865 #else /* USDT2 */

  2866 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2867                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2868 #endif /* USDT2 */

  2870 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2871   JNIWrapper("ToReflectedField");

  2872 #ifndef USDT2

  2873   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2874                 env, cls, fieldID, isStatic);

  2875 #else /* USDT2 */

  2876   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2877                 env, cls, (uintptr_t) fieldID, isStatic);

  2878 #endif /* USDT2 */

  2879   jobject ret = NULL;

  2880   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2882   fieldDescriptor fd;

  2883   bool found = false;

  2884   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2886   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2888   if (isStatic) {

  2889     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2890     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2891     assert(id->is_static_field_id(), "invalid static field id");

  2892     found = id->find_local_field(&fd);

  2893   } else {

  2894     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2895     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2896     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2897   }

  2898   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2899   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2900   ret = JNIHandles::make_local(env, reflected);

  2901   return ret;

  2902 JNI_END

  2905 //

  2906 // Accessing Static Fields

  2907 //

  2908 #ifndef USDT2

  2909 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2910 #else /* USDT2 */

  2911 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2912                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2913 #endif /* USDT2 */

  2915 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2916           const char *name, const char *sig))

  2917   JNIWrapper("GetStaticFieldID");

  2918 #ifndef USDT2

  2919   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2920 #else /* USDT2 */

  2921   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2922                                      env, clazz, (char *) name, (char *) sig);

  2923 #endif /* USDT2 */

  2924   jfieldID ret = NULL;

  2925   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2927   // The class should have been loaded (we have an instance of the class

  2928   // passed in) so the field and signature should already be in the symbol

  2929   // table.  If they're not there, the field doesn't exist.

  2930   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2931   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2932   if (fieldname == NULL || signame == NULL) {

  2933     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2934   }

  2935   KlassHandle k(THREAD,

  2936                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2937   // Make sure class is initialized before handing id's out to static fields

  2938   k()->initialize(CHECK_NULL);

  2940   fieldDescriptor fd;

  2941   if (!k()->oop_is_instance() ||

  2942       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2943     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2944   }

  2946   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2947   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2948   debug_only(id->set_is_static_field_id();)

  2950   debug_only(id->verify(fd.field_holder()));

  2952   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2953   return ret;

  2954 JNI_END

  2957 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2958   JNIWrapper("GetStaticObjectField");

  2959 #ifndef USDT2

  2960   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  2961 #else /* USDT2 */

  2962   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  2963                                          env, clazz, (uintptr_t) fieldID);

  2964 #endif /* USDT2 */

  2965 #if INCLUDE_JNI_CHECK

  2966   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  2967 #endif // INCLUDE_JNI_CHECK

  2968   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2969   assert(id->is_static_field_id(), "invalid static field id");

  2970   // Keep JVMTI addition small and only check enabled flag here.

  2971   // jni_GetField_probe() assumes that is okay to create handles.

  2972   if (JvmtiExport::should_post_field_access()) {

  2973     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  2974   }

  2975   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  2976 #ifndef USDT2

  2977   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  2978 #else /* USDT2 */

  2979   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  2980                                           ret);

  2981 #endif /* USDT2 */

  2982   return ret;

  2983 JNI_END

  2985 #ifndef USDT2

  2986 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  2987 \

  2988   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  2989 \

  2990 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  2991   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  2992   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  2993   Return ret = 0;\

  2994   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  2995                      (const Return&)ret);\

  2996   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  2997   assert(id->is_static_field_id(), "invalid static field id"); \

  2998   /* Keep JVMTI addition small and only check enabled flag here. */ \

  2999   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3000   if (JvmtiExport::should_post_field_access()) { \

  3001     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3002   } \

  3003   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3004   return ret;\

  3005 JNI_END

  3007 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3008 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3009 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3010 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3011 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3012 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3013 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3014 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3016 #else /* USDT2 */

  3018 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3019                               , EntryProbe, ReturnProbe) \

  3020 \

  3021   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3022                           , ReturnProbe);                                          \

  3023 \

  3024 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3025   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3026   EntryProbe; \

  3027   Return ret = 0;\

  3028   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3029                      (const Return&)ret);\

  3030   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3031   assert(id->is_static_field_id(), "invalid static field id"); \

  3032   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3033   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3034   if (JvmtiExport::should_post_field_access()) { \

  3035     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3036   } \

  3037   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3038   return ret;\

  3039 JNI_END

  3041 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3042                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3043 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3044                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3045 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3046                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3047 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3048                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3049 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3050                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3051 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3052                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3053 // Float and double probes don't return value because dtrace doesn't currently support it

  3054 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3055                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3056 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3057                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3058 #endif /* USDT2 */

  3060 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3061   JNIWrapper("SetStaticObjectField");

  3062 #ifndef USDT2

  3063   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3064 #else /* USDT2 */

  3065  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3066                                         env, clazz, (uintptr_t) fieldID, value);

  3067 #endif /* USDT2 */

  3068   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3069   assert(id->is_static_field_id(), "invalid static field id");

  3070   // Keep JVMTI addition small and only check enabled flag here.

  3071   // jni_SetField_probe() assumes that is okay to create handles.

  3072   if (JvmtiExport::should_post_field_modification()) {

  3073     jvalue field_value;

  3074     field_value.l = value;

  3075     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3076   }

  3077   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3078 #ifndef USDT2

  3079   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3080 #else /* USDT2 */

  3081   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3082                                           );

  3083 #endif /* USDT2 */

  3084 JNI_END

  3087 #ifndef USDT2

  3088 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3089 \

  3090 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3091   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3092   FP_SELECT_##Result( \

  3093      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3094      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3095 \

  3096   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3097   assert(id->is_static_field_id(), "invalid static field id"); \

  3098   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3099   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3100   if (JvmtiExport::should_post_field_modification()) { \

  3101     jvalue field_value; \

  3102     field_value.unionType = value; \

  3103     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3104   } \

  3105   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3106   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3107 JNI_END

  3109 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3110 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3111 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3112 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3113 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3114 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3115 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3116 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3118 #else /* USDT2 */

  3120 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3121                               , EntryProbe, ReturnProbe) \

  3122 \

  3123 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3124   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3125   EntryProbe; \

  3126 \

  3127   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3128   assert(id->is_static_field_id(), "invalid static field id"); \

  3129   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3130   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3131   if (JvmtiExport::should_post_field_modification()) { \

  3132     jvalue field_value; \

  3133     field_value.unionType = value; \

  3134     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3135   } \

  3136   if (SigType == 'Z') { value = ((jboolean)value) & 1; } \

  3137   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3138   ReturnProbe;\

  3139 JNI_END

  3141 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3142                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3143                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3144 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3145                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3146                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3147 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3148                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3149                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3150 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3151                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3152                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3153 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3154                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3155                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3156 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3157                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3158                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3159 // Float and double probes don't return value because dtrace doesn't currently support it

  3160 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3161                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3162                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3163 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3164                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3165                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3166 #endif /* USDT2 */

  3168 //

  3169 // String Operations

  3170 //

  3172 // Unicode Interface

  3174 #ifndef USDT2

  3175 DT_RETURN_MARK_DECL(NewString, jstring);

  3176 #else /* USDT2 */

  3177 DT_RETURN_MARK_DECL(NewString, jstring

  3178                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3179 #endif /* USDT2 */

  3181 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3182   JNIWrapper("NewString");

  3183 #ifndef USDT2

  3184   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3185 #else /* USDT2 */

  3186  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3187                              env, (uint16_t *) unicodeChars, len);

  3188 #endif /* USDT2 */

  3189   jstring ret = NULL;

  3190   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3191   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3192   ret = (jstring) JNIHandles::make_local(env, string);

  3193   return ret;

  3194 JNI_END

  3197 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3198   JNIWrapper("GetStringLength");

  3199 #ifndef USDT2

  3200   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3201 #else /* USDT2 */

  3202   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3203                                     env, string);

  3204 #endif /* USDT2 */

  3205   jsize ret = 0;

  3206   oop s = JNIHandles::resolve_non_null(string);

  3207   if (java_lang_String::value(s) != NULL) {

  3208     ret = java_lang_String::length(s);

  3209   }

  3210 #ifndef USDT2

  3211   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3212 #else /* USDT2 */

  3213  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3214                                     ret);

  3215 #endif /* USDT2 */

  3216   return ret;

  3217 JNI_END

  3220 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3221   JNIEnv *env, jstring string, jboolean *isCopy))

  3222   JNIWrapper("GetStringChars");

  3223 #ifndef USDT2

  3224   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3225 #else /* USDT2 */

  3226  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3227                                   env, string, (uintptr_t *) isCopy);

  3228 #endif /* USDT2 */

  3229   jchar* buf = NULL;

  3230   oop s = JNIHandles::resolve_non_null(string);

  3231   typeArrayOop s_value = java_lang_String::value(s);

  3232   if (s_value != NULL) {

  3233     int s_len = java_lang_String::length(s);

  3234     int s_offset = java_lang_String::offset(s);

  3235     buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3236     /* JNI Specification states return NULL on OOM */

  3237     if (buf != NULL) {

  3238       if (s_len > 0) {

  3239         memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3240       }

  3241       buf[s_len] = 0;

  3242       //%note jni_5

  3243       if (isCopy != NULL) {

  3244         *isCopy = JNI_TRUE;

  3245       }

  3246     }

  3247   }

  3248 #ifndef USDT2

  3249   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3250 #else /* USDT2 */

  3251   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3252                                     buf);

  3253 #endif /* USDT2 */

  3254   return buf;

  3255 JNI_END

  3258 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3259   JNIWrapper("ReleaseStringChars");

  3260 #ifndef USDT2

  3261   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3262 #else /* USDT2 */

  3263   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3264                                        env, str, (uint16_t *) chars);

  3265 #endif /* USDT2 */

  3266   //%note jni_6

  3267   if (chars != NULL) {

  3268     // Since String objects are supposed to be immutable, don't copy any

  3269     // new data back.  A bad user will have to go after the char array.

  3270     FreeHeap((void*) chars);

  3271   }

  3272 #ifndef USDT2

  3273   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3274 #else /* USDT2 */

  3275   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3276 );

  3277 #endif /* USDT2 */

  3278 JNI_END

  3281 // UTF Interface

  3283 #ifndef USDT2

  3284 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3285 #else /* USDT2 */

  3286 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3287                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3288 #endif /* USDT2 */

  3290 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3291   JNIWrapper("NewStringUTF");

  3292 #ifndef USDT2

  3293   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3294 #else /* USDT2 */

  3295   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3296                                  env, (char *) bytes);

  3297 #endif /* USDT2 */

  3298   jstring ret;

  3299   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3301   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3302   ret = (jstring) JNIHandles::make_local(env, result);

  3303   return ret;

  3304 JNI_END

  3307 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3308   JNIWrapper("GetStringUTFLength");

  3309 #ifndef USDT2

  3310   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3311 #else /* USDT2 */

  3312  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3313                                       env, string);

  3314 #endif /* USDT2 */

  3315   jsize ret = 0;

  3316   oop java_string = JNIHandles::resolve_non_null(string);

  3317   if (java_lang_String::value(java_string) != NULL) {

  3318     ret = java_lang_String::utf8_length(java_string);

  3319   }

  3320 #ifndef USDT2

  3321   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3322 #else /* USDT2 */

  3323   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3324                                         ret);

  3325 #endif /* USDT2 */

  3326   return ret;

  3327 JNI_END

  3330 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3331   JNIWrapper("GetStringUTFChars");

  3332 #ifndef USDT2

  3333   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3334 #else /* USDT2 */

  3335  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3336                                      env, string, (uintptr_t *) isCopy);

  3337 #endif /* USDT2 */

  3338   char* result = NULL;

  3339   oop java_string = JNIHandles::resolve_non_null(string);

  3340   if (java_lang_String::value(java_string) != NULL) {

  3341     size_t length = java_lang_String::utf8_length(java_string);

  3342     /* JNI Specification states return NULL on OOM */

  3343     result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);

  3344     if (result != NULL) {

  3345       java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3346       if (isCopy != NULL) {

  3347         *isCopy = JNI_TRUE;

  3348       }

  3349     }

  3350   }

  3351 #ifndef USDT2

  3352   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3353 #else /* USDT2 */

  3354  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3355                                       result);

  3356 #endif /* USDT2 */

  3357   return result;

  3358 JNI_END

  3361 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3362   JNIWrapper("ReleaseStringUTFChars");

  3363 #ifndef USDT2

  3364   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3365 #else /* USDT2 */

  3366  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3367                                          env, str, (char *) chars);

  3368 #endif /* USDT2 */

  3369   if (chars != NULL) {

  3370     FreeHeap((char*) chars);

  3371   }

  3372 #ifndef USDT2

  3373   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3374 #else /* USDT2 */

  3375 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3376 );

  3377 #endif /* USDT2 */

  3378 JNI_END

  3381 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3382   JNIWrapper("GetArrayLength");

  3383 #ifndef USDT2

  3384   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3385 #else /* USDT2 */

  3386  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3387                                   env, array);

  3388 #endif /* USDT2 */

  3389   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3390   assert(a->is_array(), "must be array");

  3391   jsize ret = a->length();

  3392 #ifndef USDT2

  3393   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3394 #else /* USDT2 */

  3395  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3396                                    ret);

  3397 #endif /* USDT2 */

  3398   return ret;

  3399 JNI_END

  3402 //

  3403 // Object Array Operations

  3404 //

  3406 #ifndef USDT2

  3407 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3408 #else /* USDT2 */

  3409 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3410                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3411 #endif /* USDT2 */

  3413 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3414   JNIWrapper("NewObjectArray");

  3415 #ifndef USDT2

  3416   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3417 #else /* USDT2 */

  3418  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3419                                   env, length, elementClass, initialElement);

  3420 #endif /* USDT2 */

  3421   jobjectArray ret = NULL;

  3422   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3423   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3424   Klass* ako = ek()->array_klass(CHECK_NULL);

  3425   KlassHandle ak = KlassHandle(THREAD, ako);

  3426   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3427   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3428   oop initial_value = JNIHandles::resolve(initialElement);

  3429   if (initial_value != NULL) {  // array already initialized with NULL

  3430     for (int index = 0; index < length; index++) {

  3431       result->obj_at_put(index, initial_value);

  3432     }

  3433   }

  3434   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3435   return ret;

  3436 JNI_END

  3438 #ifndef USDT2

  3439 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3440 #else /* USDT2 */

  3441 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3442                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3443 #endif /* USDT2 */

  3445 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3446   JNIWrapper("GetObjectArrayElement");

  3447 #ifndef USDT2

  3448   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3449 #else /* USDT2 */

  3450  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3451                                          env, array, index);

  3452 #endif /* USDT2 */

  3453   jobject ret = NULL;

  3454   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3455   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3456   if (a->is_within_bounds(index)) {

  3457     ret = JNIHandles::make_local(env, a->obj_at(index));

  3458     return ret;

  3459   } else {

  3460     char buf[jintAsStringSize];

  3461     sprintf(buf, "%d", index);

  3462     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3463   }

  3464 JNI_END

  3466 #ifndef USDT2

  3467 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3468 #else /* USDT2 */

  3469 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3470                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3471 #endif /* USDT2 */

  3473 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3474   JNIWrapper("SetObjectArrayElement");

  3475 #ifndef USDT2

  3476   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3477 #else /* USDT2 */

  3478  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3479                                          env, array, index, value);

  3480 #endif /* USDT2 */

  3481   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3483   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3484   oop v = JNIHandles::resolve(value);

  3485   if (a->is_within_bounds(index)) {

  3486     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3487       a->obj_at_put(index, v);

  3488     } else {

  3489       THROW(vmSymbols::java_lang_ArrayStoreException());

  3490     }

  3491   } else {

  3492     char buf[jintAsStringSize];

  3493     sprintf(buf, "%d", index);

  3494     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3495   }

  3496 JNI_END

  3499 #ifndef USDT2

  3500 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3501 \

  3502   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3503 \

  3504 JNI_ENTRY(Return, \

  3505           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3506   JNIWrapper("New" XSTR(Result) "Array"); \

  3507   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3508   Return ret = NULL;\

  3509   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3510 \

  3511   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3512   ret = (Return) JNIHandles::make_local(env, obj); \

  3513   return ret;\

  3514 JNI_END

  3516 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3517 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3518 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3519 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3520 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3521 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3522 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3523 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3525 #else /* USDT2 */

  3527 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3528                               ,EntryProbe,ReturnProbe)  \

  3529 \

  3530   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3531                       , ReturnProbe); \

  3532 \

  3533 JNI_ENTRY(Return, \

  3534           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3535   JNIWrapper("New" XSTR(Result) "Array"); \

  3536   EntryProbe; \

  3537   Return ret = NULL;\

  3538   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3539 \

  3540   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3541   ret = (Return) JNIHandles::make_local(env, obj); \

  3542   return ret;\

  3543 JNI_END

  3545 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3546                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3547                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3548 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3549                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3550                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3551 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3552                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3553                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3554 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3555                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3556                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3557 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3558                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3559                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3560 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3561                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3562                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3563 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3564                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3565                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3566 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3567                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3568                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3569 #endif /* USDT2 */

  3571 // Return an address which will fault if the caller writes to it.

  3573 static char* get_bad_address() {

  3574   static char* bad_address = NULL;

  3575   if (bad_address == NULL) {

  3576     size_t size = os::vm_allocation_granularity();

  3577     bad_address = os::reserve_memory(size);

  3578     if (bad_address != NULL) {

  3579       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3580                          /*is_committed*/false);

  3581       MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);

  3582     }

  3583   }

  3584   return bad_address;

  3585 }

  3588 #ifndef USDT2

  3589 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3590 \

  3591 JNI_QUICK_ENTRY(ElementType*, \

  3592           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3593   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3594   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3595   /* allocate an chunk of memory in c land */ \

  3596   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3597   ElementType* result; \

  3598   int len = a->length(); \

  3599   if (len == 0) { \

  3600     /* Empty array: legal but useless, can't return NULL. \

  3601      * Return a pointer to something useless. \

  3602      * Avoid asserts in typeArrayOop. */ \

  3603     result = (ElementType*)get_bad_address(); \

  3604   } else { \

  3605     /* JNI Specification states return NULL on OOM */                    \

  3606     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3607     if (result != NULL) {                                                \

  3608       /* copy the array to the c chunk */                                \

  3609       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3610       if (isCopy) {                                                      \

  3611         *isCopy = JNI_TRUE;                                              \

  3612       }                                                                  \

  3613     }                                                                    \

  3614   } \

  3615   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3616   return result; \

  3617 JNI_END

  3619 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3620 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3621 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3622 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3623 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3624 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3625 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3626 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3628 #else /* USDT2 */

  3630 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3631                                       , EntryProbe, ReturnProbe) \

  3632 \

  3633 JNI_QUICK_ENTRY(ElementType*, \

  3634           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3635   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3636   EntryProbe; \

  3637   /* allocate an chunk of memory in c land */ \

  3638   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3639   ElementType* result; \

  3640   int len = a->length(); \

  3641   if (len == 0) { \

  3642     /* Empty array: legal but useless, can't return NULL. \

  3643      * Return a pointer to something useless. \

  3644      * Avoid asserts in typeArrayOop. */ \

  3645     result = (ElementType*)get_bad_address(); \

  3646   } else { \

  3647     /* JNI Specification states return NULL on OOM */                    \

  3648     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3649     if (result != NULL) {                                                \

  3650       /* copy the array to the c chunk */                                \

  3651       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3652       if (isCopy) {                                                      \

  3653         *isCopy = JNI_TRUE;                                              \

  3654       }                                                                  \

  3655     }                                                                    \

  3656   } \

  3657   ReturnProbe; \

  3658   return result; \

  3659 JNI_END

  3661 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3662                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3663                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3664 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3665                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3666                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3667 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3668                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3669                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3670 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3671                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3672                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3673 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3674                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3675                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3676 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3677                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3678                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3679 // Float and double probes don't return value because dtrace doesn't currently support it

  3680 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3681                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3682                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3683 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3684                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3685                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3686 #endif /* USDT2 */

  3688 #ifndef USDT2

  3689 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3690 \

  3691 JNI_QUICK_ENTRY(void, \

  3692           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3693                                              ElementType *buf, jint mode)) \

  3694   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3695   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3696   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3697   int len = a->length(); \

  3698   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3699     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3700       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3701     } \

  3702     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3703       FreeHeap(buf); \

  3704     } \

  3705   } \

  3706   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3707 JNI_END

  3709 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3710 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3711 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3712 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3713 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3714 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3715 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3718 #else /* USDT2 */

  3720 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3721                                           , EntryProbe, ReturnProbe);\

  3722 \

  3723 JNI_QUICK_ENTRY(void, \

  3724           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3725                                              ElementType *buf, jint mode)) \

  3726   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3727   EntryProbe; \

  3728   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3729   int len = a->length(); \

  3730   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3731     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3732       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3733     } \

  3734     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3735       FreeHeap(buf); \

  3736     } \

  3737   } \

  3738   ReturnProbe; \

  3739 JNI_END

  3741 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3742                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3743                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3744 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3745                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3746                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3747 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3748                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3749                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3750 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3751                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3752                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3753 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3754                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3755                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3756 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3757                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3758                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3759 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3760                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3761                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3762 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3763                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3764                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3765 #endif /* USDT2 */

  3767 #ifndef USDT2

  3768 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3769   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3770 \

  3771 JNI_ENTRY(void, \

  3772 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3773              jsize len, ElementType *buf)) \

  3774   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3775   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3776   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3777   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3778   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3779     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3780   } else { \

  3781     if (len > 0) { \

  3782       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3783       memcpy((u_char*) buf, \

  3784              (u_char*) src->Tag##_at_addr(start), \

  3785              len << sc);                          \

  3786     } \

  3787   } \

  3788 JNI_END

  3790 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3791 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3792 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3793 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3794 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3795 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3796 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3797 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3799 #else /* USDT2 */

  3801 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3802                                     , EntryProbe, ReturnProbe); \

  3803   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3804                            , ReturnProbe); \

  3805 \

  3806 JNI_ENTRY(void, \

  3807 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3808              jsize len, ElementType *buf)) \

  3809   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3810   EntryProbe; \

  3811   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3812   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3813   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3814     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3815   } else { \

  3816     if (len > 0) { \

  3817       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3818       memcpy((u_char*) buf, \

  3819              (u_char*) src->Tag##_at_addr(start), \

  3820              len << sc);                          \

  3821     } \

  3822   } \

  3823 JNI_END

  3825 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3826                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3827                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3828 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3829                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3830                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3831 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3832                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3833                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3834 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3835                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3836                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3837 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3838                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3839                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3840 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3841                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3842                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3843 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3844                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3845                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3846 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3847                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3848                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3849 #endif /* USDT2 */

  3851 #ifndef USDT2

  3852 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3853   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3854 \

  3855 JNI_ENTRY(void, \

  3856 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3857              jsize len, const ElementType *buf)) \

  3858   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3859   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3860   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3861   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3862   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3863     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3864   } else { \

  3865     if (len > 0) { \

  3866       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3867       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3868              (u_char*) buf, \

  3869              len << sc);    \

  3870     } \

  3871   } \

  3872 JNI_END

  3874 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3875 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3876 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3877 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3878 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3879 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3880 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3881 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3883 #else /* USDT2 */

  3885 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3886                                     , EntryProbe, ReturnProbe); \

  3887   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3888                            ,ReturnProbe);           \

  3889 \

  3890 JNI_ENTRY(void, \

  3891 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3892              jsize len, const ElementType *buf)) \

  3893   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3894   EntryProbe; \

  3895   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3896   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3897   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3898     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3899   } else { \

  3900     if (len > 0) { \

  3901       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3902       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3903              (u_char*) buf, \

  3904              len << sc);    \

  3905     } \

  3906   } \

  3907 JNI_END

  3909 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3910                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3911                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3912 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3913                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3914                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3915 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3916                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3917                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3918 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3919                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3920                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3921 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3922                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3923                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3924 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3925                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3926                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3927 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3928                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3929                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3930 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3931                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3932                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3933 #endif /* USDT2 */

  3936 //

  3937 // Interception of natives

  3938 //

  3940 // The RegisterNatives call being attempted tried to register with a method that

  3941 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3942 // to see if the native method is now wrapped with the prefixes.  See the

  3943 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3944 static Method* find_prefixed_native(KlassHandle k,

  3945                                       Symbol* name, Symbol* signature, TRAPS) {

  3946 #if INCLUDE_JVMTI

  3947   ResourceMark rm(THREAD);

  3948   Method* method;

  3949   int name_len = name->utf8_length();

  3950   char* name_str = name->as_utf8();

  3951   int prefix_count;

  3952   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3953   for (int i = 0; i < prefix_count; i++) {

  3954     char* prefix = prefixes[i];

  3955     int prefix_len = (int)strlen(prefix);

  3957     // try adding this prefix to the method name and see if it matches another method name

  3958     int trial_len = name_len + prefix_len;

  3959     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3960     strcpy(trial_name_str, prefix);

  3961     strcat(trial_name_str, name_str);

  3962     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3963     if (trial_name == NULL) {

  3964       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3965     }

  3966     method = k()->lookup_method(trial_name, signature);

  3967     if (method == NULL) {

  3968       continue; // signature doesn't match, try the next prefix

  3969     }

  3970     if (method->is_native()) {

  3971       method->set_is_prefixed_native();

  3972       return method; // wahoo, we found a prefixed version of the method, return it

  3973     }

  3974     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3975     name_len = trial_len;

  3976     name_str = trial_name_str;

  3977   }

  3978 #endif // INCLUDE_JVMTI

  3979   return NULL; // not found

  3980 }

  3982 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3983   Method* method = k()->lookup_method(name, signature);

  3984   if (method == NULL) {

  3985     ResourceMark rm;

  3986     stringStream st;

  3987     st.print("Method %s name or signature does not match",

  3988              Method::name_and_sig_as_C_string(k(), name, signature));

  3989     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3990   }

  3991   if (!method->is_native()) {

  3992     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  3993     method = find_prefixed_native(k, name, signature, THREAD);

  3994     if (method == NULL) {

  3995       ResourceMark rm;

  3996       stringStream st;

  3997       st.print("Method %s is not declared as native",

  3998                Method::name_and_sig_as_C_string(k(), name, signature));

  3999       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4000     }

  4001   }

  4003   if (entry != NULL) {

  4004     method->set_native_function(entry,

  4005       Method::native_bind_event_is_interesting);

  4006   } else {

  4007     method->clear_native_function();

  4008   }

  4009   if (PrintJNIResolving) {

  4010     ResourceMark rm(THREAD);

  4011     tty->print_cr("[Registering JNI native method %s.%s]",

  4012       method->method_holder()->external_name(),

  4013       method->name()->as_C_string());

  4014   }

  4015   return true;

  4016 }

  4018 #ifndef USDT2

  4019 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4020 #else /* USDT2 */

  4021 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4022                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4023 #endif /* USDT2 */

  4025 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4026                                     const JNINativeMethod *methods,

  4027                                     jint nMethods))

  4028   JNIWrapper("RegisterNatives");

  4029 #ifndef USDT2

  4030   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4031 #else /* USDT2 */

  4032   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4033                                     env, clazz, (void *) methods, nMethods);

  4034 #endif /* USDT2 */

  4035   jint ret = 0;

  4036   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4038   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4040   for (int index = 0; index < nMethods; index++) {

  4041     const char* meth_name = methods[index].name;

  4042     const char* meth_sig = methods[index].signature;

  4043     int meth_name_len = (int)strlen(meth_name);

  4045     // The class should have been loaded (we have an instance of the class

  4046     // passed in) so the method and signature should already be in the symbol

  4047     // table.  If they're not there, the method doesn't exist.

  4048     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4049     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4051     if (name == NULL || signature == NULL) {

  4052       ResourceMark rm;

  4053       stringStream st;

  4054       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4055       // Must return negative value on failure

  4056       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4057     }

  4059     bool res = register_native(h_k, name, signature,

  4060                                (address) methods[index].fnPtr, THREAD);

  4061     if (!res) {

  4062       ret = -1;

  4063       break;

  4064     }

  4065   }

  4066   return ret;

  4067 JNI_END

  4070 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4071   JNIWrapper("UnregisterNatives");

  4072 #ifndef USDT2

  4073   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4074 #else /* USDT2 */

  4075  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4076                                      env, clazz);

  4077 #endif /* USDT2 */

  4078   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4079   //%note jni_2

  4080   if (k->oop_is_instance()) {

  4081     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4082       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4083       if (m->is_native()) {

  4084         m->clear_native_function();

  4085         m->set_signature_handler(NULL);

  4086       }

  4087     }

  4088   }

  4089 #ifndef USDT2

  4090   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4091 #else /* USDT2 */

  4092  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4093                                       0);

  4094 #endif /* USDT2 */

  4095   return 0;

  4096 JNI_END

  4098 //

  4099 // Monitor functions

  4100 //

  4102 #ifndef USDT2

  4103 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4104 #else /* USDT2 */

  4105 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4106                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4107 #endif /* USDT2 */

  4109 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4110 #ifndef USDT2

  4111   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4112 #else /* USDT2 */

  4113  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4114                                 env, jobj);

  4115 #endif /* USDT2 */

  4116   jint ret = JNI_ERR;

  4117   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4119   // If the object is null, we can't do anything with it

  4120   if (jobj == NULL) {

  4121     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4122   }

  4124   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4125   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4126   ret = JNI_OK;

  4127   return ret;

  4128 JNI_END

  4130 #ifndef USDT2

  4131 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4132 #else /* USDT2 */

  4133 DT_RETURN_MARK_DECL(MonitorExit, jint

  4134                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4135 #endif /* USDT2 */

  4137 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4138 #ifndef USDT2

  4139   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4140 #else /* USDT2 */

  4141  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4142                                env, jobj);

  4143 #endif /* USDT2 */

  4144   jint ret = JNI_ERR;

  4145   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4147   // Don't do anything with a null object

  4148   if (jobj == NULL) {

  4149     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4150   }

  4152   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4153   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4155   ret = JNI_OK;

  4156   return ret;

  4157 JNI_END

  4159 //

  4160 // Extensions

  4161 //

  4163 #ifndef USDT2

  4164 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4165 #else /* USDT2 */

  4166 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4167                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4168 #endif /* USDT2 */

  4170 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4171   JNIWrapper("GetStringRegion");

  4172 #ifndef USDT2

  4173   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4174 #else /* USDT2 */

  4175  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4176                                    env, string, start, len, buf);

  4177 #endif /* USDT2 */

  4178   DT_VOID_RETURN_MARK(GetStringRegion);

  4179   oop s = JNIHandles::resolve_non_null(string);

  4180   int s_len = java_lang_String::length(s);

  4181   if (start < 0 || len < 0 || start + len > s_len) {

  4182     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4183   } else {

  4184     if (len > 0) {

  4185       int s_offset = java_lang_String::offset(s);

  4186       typeArrayOop s_value = java_lang_String::value(s);

  4187       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4188     }

  4189   }

  4190 JNI_END

  4192 #ifndef USDT2

  4193 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4194 #else /* USDT2 */

  4195 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4196                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4197 #endif /* USDT2 */

  4199 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4200   JNIWrapper("GetStringUTFRegion");

  4201 #ifndef USDT2

  4202   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4203 #else /* USDT2 */

  4204  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4205                                       env, string, start, len, buf);

  4206 #endif /* USDT2 */

  4207   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4208   oop s = JNIHandles::resolve_non_null(string);

  4209   int s_len = java_lang_String::length(s);

  4210   if (start < 0 || len < 0 || start + len > s_len) {

  4211     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4212   } else {

  4213     //%note jni_7

  4214     if (len > 0) {

  4215       ResourceMark rm(THREAD);

  4216       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4217       int utf_len = (int)strlen(utf_region);

  4218       memcpy(buf, utf_region, utf_len);

  4219       buf[utf_len] = 0;

  4220     } else {

  4221       // JDK null-terminates the buffer even in len is zero

  4222       if (buf != NULL) {

  4223         buf[0] = 0;

  4224       }

  4225     }

  4226   }

  4227 JNI_END

  4230 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4231   JNIWrapper("GetPrimitiveArrayCritical");

  4232 #ifndef USDT2

  4233   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4234 #else /* USDT2 */

  4235  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4236                                              env, array, (uintptr_t *) isCopy);

  4237 #endif /* USDT2 */

  4238   GC_locker::lock_critical(thread);

  4239   if (isCopy != NULL) {

  4240     *isCopy = JNI_FALSE;

  4241   }

  4242   oop a = JNIHandles::resolve_non_null(array);

  4243   assert(a->is_array(), "just checking");

  4244   BasicType type;

  4245   if (a->is_objArray()) {

  4246     type = T_OBJECT;

  4247   } else {

  4248     type = TypeArrayKlass::cast(a->klass())->element_type();

  4249   }

  4250   void* ret = arrayOop(a)->base(type);

  4251 #ifndef USDT2

  4252   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4253 #else /* USDT2 */

  4254  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4255                                               ret);

  4256 #endif /* USDT2 */

  4257   return ret;

  4258 JNI_END

  4261 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4262   JNIWrapper("ReleasePrimitiveArrayCritical");

  4263 #ifndef USDT2

  4264   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4265 #else /* USDT2 */

  4266   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4267                                                   env, array, carray, mode);

  4268 #endif /* USDT2 */

  4269   // The array, carray and mode arguments are ignored

  4270   GC_locker::unlock_critical(thread);

  4271 #ifndef USDT2

  4272   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4273 #else /* USDT2 */

  4274 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4275 );

  4276 #endif /* USDT2 */

  4277 JNI_END

  4280 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4281   JNIWrapper("GetStringCritical");

  4282 #ifndef USDT2

  4283   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4284 #else /* USDT2 */

  4285   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4286                                       env, string, (uintptr_t *) isCopy);

  4287 #endif /* USDT2 */

  4288   GC_locker::lock_critical(thread);

  4289   if (isCopy != NULL) {

  4290     *isCopy = JNI_FALSE;

  4291   }

  4292   oop s = JNIHandles::resolve_non_null(string);

  4293   int s_len = java_lang_String::length(s);

  4294   typeArrayOop s_value = java_lang_String::value(s);

  4295   int s_offset = java_lang_String::offset(s);

  4296   const jchar* ret;

  4297   if (s_len > 0) {

  4298     ret = s_value->char_at_addr(s_offset);

  4299   } else {

  4300     ret = (jchar*) s_value->base(T_CHAR);

  4301   }

  4302 #ifndef USDT2

  4303   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4304 #else /* USDT2 */

  4305  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4306                                       (uint16_t *) ret);

  4307 #endif /* USDT2 */

  4308   return ret;

  4309 JNI_END

  4312 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4313   JNIWrapper("ReleaseStringCritical");

  4314 #ifndef USDT2

  4315   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4316 #else /* USDT2 */

  4317   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4318                                           env, str, (uint16_t *) chars);

  4319 #endif /* USDT2 */

  4320   // The str and chars arguments are ignored

  4321   GC_locker::unlock_critical(thread);

  4322 #ifndef USDT2

  4323   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4324 #else /* USDT2 */

  4325 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4326 );

  4327 #endif /* USDT2 */

  4328 JNI_END

  4331 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4332   JNIWrapper("jni_NewWeakGlobalRef");

  4333 #ifndef USDT2

  4334   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4335 #else /* USDT2 */

  4336  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4337                                     env, ref);

  4338 #endif /* USDT2 */

  4339   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4340   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4341 #ifndef USDT2

  4342   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4343 #else /* USDT2 */

  4344  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4345                                      ret);

  4346 #endif /* USDT2 */

  4347   return ret;

  4348 JNI_END

  4350 // Must be JNI_ENTRY (with HandleMark)

  4351 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4352   JNIWrapper("jni_DeleteWeakGlobalRef");

  4353 #ifndef USDT2

  4354   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4355 #else /* USDT2 */

  4356   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4357                                         env, ref);

  4358 #endif /* USDT2 */

  4359   JNIHandles::destroy_weak_global(ref);

  4360 #ifndef USDT2

  4361   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4362 #else /* USDT2 */

  4363   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4364                                          );

  4365 #endif /* USDT2 */

  4366 JNI_END

  4369 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4370   JNIWrapper("jni_ExceptionCheck");

  4371 #ifndef USDT2

  4372   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4373 #else /* USDT2 */

  4374  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4375                                   env);

  4376 #endif /* USDT2 */

  4377   jni_check_async_exceptions(thread);

  4378   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4379 #ifndef USDT2

  4380   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4381 #else /* USDT2 */

  4382  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4383                                    ret);

  4384 #endif /* USDT2 */

  4385   return ret;

  4386 JNI_END

  4389 // Initialization state for three routines below relating to

  4390 // java.nio.DirectBuffers

  4391 static          jint directBufferSupportInitializeStarted = 0;

  4392 static volatile jint directBufferSupportInitializeEnded   = 0;

  4393 static volatile jint directBufferSupportInitializeFailed  = 0;

  4394 static jclass    bufferClass                 = NULL;

  4395 static jclass    directBufferClass           = NULL;

  4396 static jclass    directByteBufferClass       = NULL;

  4397 static jmethodID directByteBufferConstructor = NULL;

  4398 static jfieldID  directBufferAddressField    = NULL;

  4399 static jfieldID  bufferCapacityField         = NULL;

  4401 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4402   Handle loader;            // null (bootstrap) loader

  4403   Handle protection_domain; // null protection domain

  4405   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4406   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4408   if (TraceClassResolution && result != NULL) {

  4409     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4410   }

  4411   return result;

  4412 }

  4414 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4415 // circumvent any security checks that would be done by jni_FindClass.

  4416 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4417 {

  4418   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4419   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4420   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4421   return true;

  4422 }

  4423 JNI_END

  4426 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4427   if (directBufferSupportInitializeFailed) {

  4428     return false;

  4429   }

  4431   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4432     if (!lookupDirectBufferClasses(env)) {

  4433       directBufferSupportInitializeFailed = 1;

  4434       return false;

  4435     }

  4437     // Make global references for these

  4438     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4439     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4440     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4442     // Get needed field and method IDs

  4443     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4444     if (env->ExceptionCheck()) {

  4445       env->ExceptionClear();

  4446       directBufferSupportInitializeFailed = 1;

  4447       return false;

  4448     }

  4449     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4450     if (env->ExceptionCheck()) {

  4451       env->ExceptionClear();

  4452       directBufferSupportInitializeFailed = 1;

  4453       return false;

  4454     }

  4455     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4456     if (env->ExceptionCheck()) {

  4457       env->ExceptionClear();

  4458       directBufferSupportInitializeFailed = 1;

  4459       return false;

  4460     }

  4462     if ((directByteBufferConstructor == NULL) ||

  4463         (directBufferAddressField    == NULL) ||

  4464         (bufferCapacityField         == NULL)) {

  4465       directBufferSupportInitializeFailed = 1;

  4466       return false;

  4467     }

  4469     directBufferSupportInitializeEnded = 1;

  4470   } else {

  4471     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4472       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4473       // os::sleep which requires the VM state transition. On other platforms, it

  4474       // is not necessary. The following call to change the VM state is purposely

  4475       // put inside the loop to avoid potential deadlock when multiple threads

  4476       // try to call this method. See 6791815 for more details.

  4477       ThreadInVMfromNative tivn(thread);

  4478       os::yield_all();

  4479     }

  4480   }

  4482   return !directBufferSupportInitializeFailed;

  4483 }

  4485 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4486 {

  4487   // thread_from_jni_environment() will block if VM is gone.

  4488   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4490   JNIWrapper("jni_NewDirectByteBuffer");

  4491 #ifndef USDT2

  4492   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4493 #else /* USDT2 */

  4494  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4495                                        env, address, capacity);

  4496 #endif /* USDT2 */

  4498   if (!directBufferSupportInitializeEnded) {

  4499     if (!initializeDirectBufferSupport(env, thread)) {

  4500 #ifndef USDT2

  4501       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4502 #else /* USDT2 */

  4503       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4504                                              NULL);

  4505 #endif /* USDT2 */

  4506       return NULL;

  4507     }

  4508   }

  4510   // Being paranoid about accidental sign extension on address

  4511   jlong addr = (jlong) ((uintptr_t) address);

  4512   // NOTE that package-private DirectByteBuffer constructor currently

  4513   // takes int capacity

  4514   jint  cap  = (jint)  capacity;

  4515   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4516 #ifndef USDT2

  4517   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4518 #else /* USDT2 */

  4519   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4520                                          ret);

  4521 #endif /* USDT2 */

  4522   return ret;

  4523 }

  4525 #ifndef USDT2

  4526 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4527 #else /* USDT2 */

  4528 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4529                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4530 #endif /* USDT2 */

  4532 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4533 {

  4534   // thread_from_jni_environment() will block if VM is gone.

  4535   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4537   JNIWrapper("jni_GetDirectBufferAddress");

  4538 #ifndef USDT2

  4539   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4540 #else /* USDT2 */

  4541   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4542                                            env, buf);

  4543 #endif /* USDT2 */

  4544   void* ret = NULL;

  4545   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4547   if (!directBufferSupportInitializeEnded) {

  4548     if (!initializeDirectBufferSupport(env, thread)) {

  4549       return 0;

  4550     }

  4551   }

  4553   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4554     return 0;

  4555   }

  4557   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4558   return ret;

  4559 }

  4561 #ifndef USDT2

  4562 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4563 #else /* USDT2 */

  4564 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4565                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4566 #endif /* USDT2 */

  4568 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4569 {

  4570   // thread_from_jni_environment() will block if VM is gone.

  4571   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4573   JNIWrapper("jni_GetDirectBufferCapacity");

  4574 #ifndef USDT2

  4575   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4576 #else /* USDT2 */

  4577   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4578                                             env, buf);

  4579 #endif /* USDT2 */

  4580   jlong ret = -1;

  4581   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4583   if (!directBufferSupportInitializeEnded) {

  4584     if (!initializeDirectBufferSupport(env, thread)) {

  4585       ret = 0;

  4586       return ret;

  4587     }

  4588   }

  4590   if (buf == NULL) {

  4591     return -1;

  4592   }

  4594   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4595     return -1;

  4596   }

  4598   // NOTE that capacity is currently an int in the implementation

  4599   ret = env->GetIntField(buf, bufferCapacityField);

  4600   return ret;

  4601 }

  4604 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4605   JNIWrapper("GetVersion");

  4606 #ifndef USDT2

  4607   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4608 #else /* USDT2 */

  4609   HOTSPOT_JNI_GETVERSION_ENTRY(

  4610                                env);

  4611 #endif /* USDT2 */

  4612 #ifndef USDT2

  4613   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4614 #else /* USDT2 */

  4615   HOTSPOT_JNI_GETVERSION_RETURN(

  4616                                 CurrentVersion);

  4617 #endif /* USDT2 */

  4618   return CurrentVersion;

  4619 JNI_END

  4621 extern struct JavaVM_ main_vm;

  4623 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4624   JNIWrapper("jni_GetJavaVM");

  4625 #ifndef USDT2

  4626   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4627 #else /* USDT2 */

  4628   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4629                               env, (void **) vm);

  4630 #endif /* USDT2 */

  4631   *vm  = (JavaVM *)(&main_vm);

  4632 #ifndef USDT2

  4633   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4634 #else /* USDT2 */

  4635   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4636                                JNI_OK);

  4637 #endif /* USDT2 */

  4638   return JNI_OK;

  4639 JNI_END

  4641 // Structure containing all jni functions

  4642 struct JNINativeInterface_ jni_NativeInterface = {

  4643     NULL,

  4644     NULL,

  4645     NULL,

  4647     NULL,

  4649     jni_GetVersion,

  4651     jni_DefineClass,

  4652     jni_FindClass,

  4654     jni_FromReflectedMethod,

  4655     jni_FromReflectedField,

  4657     jni_ToReflectedMethod,

  4659     jni_GetSuperclass,

  4660     jni_IsAssignableFrom,

  4662     jni_ToReflectedField,

  4664     jni_Throw,

  4665     jni_ThrowNew,

  4666     jni_ExceptionOccurred,

  4667     jni_ExceptionDescribe,

  4668     jni_ExceptionClear,

  4669     jni_FatalError,

  4671     jni_PushLocalFrame,

  4672     jni_PopLocalFrame,

  4674     jni_NewGlobalRef,

  4675     jni_DeleteGlobalRef,

  4676     jni_DeleteLocalRef,

  4677     jni_IsSameObject,

  4679     jni_NewLocalRef,

  4680     jni_EnsureLocalCapacity,

  4682     jni_AllocObject,

  4683     jni_NewObject,

  4684     jni_NewObjectV,

  4685     jni_NewObjectA,

  4687     jni_GetObjectClass,

  4688     jni_IsInstanceOf,

  4690     jni_GetMethodID,

  4692     jni_CallObjectMethod,

  4693     jni_CallObjectMethodV,

  4694     jni_CallObjectMethodA,

  4695     jni_CallBooleanMethod,

  4696     jni_CallBooleanMethodV,

  4697     jni_CallBooleanMethodA,

  4698     jni_CallByteMethod,

  4699     jni_CallByteMethodV,

  4700     jni_CallByteMethodA,

  4701     jni_CallCharMethod,

  4702     jni_CallCharMethodV,

  4703     jni_CallCharMethodA,

  4704     jni_CallShortMethod,

  4705     jni_CallShortMethodV,

  4706     jni_CallShortMethodA,

  4707     jni_CallIntMethod,

  4708     jni_CallIntMethodV,

  4709     jni_CallIntMethodA,

  4710     jni_CallLongMethod,

  4711     jni_CallLongMethodV,

  4712     jni_CallLongMethodA,

  4713     jni_CallFloatMethod,

  4714     jni_CallFloatMethodV,

  4715     jni_CallFloatMethodA,

  4716     jni_CallDoubleMethod,

  4717     jni_CallDoubleMethodV,

  4718     jni_CallDoubleMethodA,

  4719     jni_CallVoidMethod,

  4720     jni_CallVoidMethodV,

  4721     jni_CallVoidMethodA,

  4723     jni_CallNonvirtualObjectMethod,

  4724     jni_CallNonvirtualObjectMethodV,

  4725     jni_CallNonvirtualObjectMethodA,

  4726     jni_CallNonvirtualBooleanMethod,

  4727     jni_CallNonvirtualBooleanMethodV,

  4728     jni_CallNonvirtualBooleanMethodA,

  4729     jni_CallNonvirtualByteMethod,

  4730     jni_CallNonvirtualByteMethodV,

  4731     jni_CallNonvirtualByteMethodA,

  4732     jni_CallNonvirtualCharMethod,

  4733     jni_CallNonvirtualCharMethodV,

  4734     jni_CallNonvirtualCharMethodA,

  4735     jni_CallNonvirtualShortMethod,

  4736     jni_CallNonvirtualShortMethodV,

  4737     jni_CallNonvirtualShortMethodA,

  4738     jni_CallNonvirtualIntMethod,

  4739     jni_CallNonvirtualIntMethodV,

  4740     jni_CallNonvirtualIntMethodA,

  4741     jni_CallNonvirtualLongMethod,

  4742     jni_CallNonvirtualLongMethodV,

  4743     jni_CallNonvirtualLongMethodA,

  4744     jni_CallNonvirtualFloatMethod,

  4745     jni_CallNonvirtualFloatMethodV,

  4746     jni_CallNonvirtualFloatMethodA,

  4747     jni_CallNonvirtualDoubleMethod,

  4748     jni_CallNonvirtualDoubleMethodV,

  4749     jni_CallNonvirtualDoubleMethodA,

  4750     jni_CallNonvirtualVoidMethod,

  4751     jni_CallNonvirtualVoidMethodV,

  4752     jni_CallNonvirtualVoidMethodA,

  4754     jni_GetFieldID,

  4756     jni_GetObjectField,

  4757     jni_GetBooleanField,

  4758     jni_GetByteField,

  4759     jni_GetCharField,

  4760     jni_GetShortField,

  4761     jni_GetIntField,

  4762     jni_GetLongField,

  4763     jni_GetFloatField,

  4764     jni_GetDoubleField,

  4766     jni_SetObjectField,

  4767     jni_SetBooleanField,

  4768     jni_SetByteField,

  4769     jni_SetCharField,

  4770     jni_SetShortField,

  4771     jni_SetIntField,

  4772     jni_SetLongField,

  4773     jni_SetFloatField,

  4774     jni_SetDoubleField,

  4776     jni_GetStaticMethodID,

  4778     jni_CallStaticObjectMethod,

  4779     jni_CallStaticObjectMethodV,

  4780     jni_CallStaticObjectMethodA,

  4781     jni_CallStaticBooleanMethod,

  4782     jni_CallStaticBooleanMethodV,

  4783     jni_CallStaticBooleanMethodA,

  4784     jni_CallStaticByteMethod,

  4785     jni_CallStaticByteMethodV,

  4786     jni_CallStaticByteMethodA,

  4787     jni_CallStaticCharMethod,

  4788     jni_CallStaticCharMethodV,

  4789     jni_CallStaticCharMethodA,

  4790     jni_CallStaticShortMethod,

  4791     jni_CallStaticShortMethodV,

  4792     jni_CallStaticShortMethodA,

  4793     jni_CallStaticIntMethod,

  4794     jni_CallStaticIntMethodV,

  4795     jni_CallStaticIntMethodA,

  4796     jni_CallStaticLongMethod,

  4797     jni_CallStaticLongMethodV,

  4798     jni_CallStaticLongMethodA,

  4799     jni_CallStaticFloatMethod,

  4800     jni_CallStaticFloatMethodV,

  4801     jni_CallStaticFloatMethodA,

  4802     jni_CallStaticDoubleMethod,

  4803     jni_CallStaticDoubleMethodV,

  4804     jni_CallStaticDoubleMethodA,

  4805     jni_CallStaticVoidMethod,

  4806     jni_CallStaticVoidMethodV,

  4807     jni_CallStaticVoidMethodA,

  4809     jni_GetStaticFieldID,

  4811     jni_GetStaticObjectField,

  4812     jni_GetStaticBooleanField,

  4813     jni_GetStaticByteField,

  4814     jni_GetStaticCharField,

  4815     jni_GetStaticShortField,

  4816     jni_GetStaticIntField,

  4817     jni_GetStaticLongField,

  4818     jni_GetStaticFloatField,

  4819     jni_GetStaticDoubleField,

  4821     jni_SetStaticObjectField,

  4822     jni_SetStaticBooleanField,

  4823     jni_SetStaticByteField,

  4824     jni_SetStaticCharField,

  4825     jni_SetStaticShortField,

  4826     jni_SetStaticIntField,

  4827     jni_SetStaticLongField,

  4828     jni_SetStaticFloatField,

  4829     jni_SetStaticDoubleField,

  4831     jni_NewString,

  4832     jni_GetStringLength,

  4833     jni_GetStringChars,

  4834     jni_ReleaseStringChars,

  4836     jni_NewStringUTF,

  4837     jni_GetStringUTFLength,

  4838     jni_GetStringUTFChars,

  4839     jni_ReleaseStringUTFChars,

  4841     jni_GetArrayLength,

  4843     jni_NewObjectArray,

  4844     jni_GetObjectArrayElement,

  4845     jni_SetObjectArrayElement,

  4847     jni_NewBooleanArray,

  4848     jni_NewByteArray,

  4849     jni_NewCharArray,

  4850     jni_NewShortArray,

  4851     jni_NewIntArray,

  4852     jni_NewLongArray,

  4853     jni_NewFloatArray,

  4854     jni_NewDoubleArray,

  4856     jni_GetBooleanArrayElements,

  4857     jni_GetByteArrayElements,

  4858     jni_GetCharArrayElements,

  4859     jni_GetShortArrayElements,

  4860     jni_GetIntArrayElements,

  4861     jni_GetLongArrayElements,

  4862     jni_GetFloatArrayElements,

  4863     jni_GetDoubleArrayElements,

  4865     jni_ReleaseBooleanArrayElements,

  4866     jni_ReleaseByteArrayElements,

  4867     jni_ReleaseCharArrayElements,

  4868     jni_ReleaseShortArrayElements,

  4869     jni_ReleaseIntArrayElements,

  4870     jni_ReleaseLongArrayElements,

  4871     jni_ReleaseFloatArrayElements,

  4872     jni_ReleaseDoubleArrayElements,

  4874     jni_GetBooleanArrayRegion,

  4875     jni_GetByteArrayRegion,

  4876     jni_GetCharArrayRegion,

  4877     jni_GetShortArrayRegion,

  4878     jni_GetIntArrayRegion,

  4879     jni_GetLongArrayRegion,

  4880     jni_GetFloatArrayRegion,

  4881     jni_GetDoubleArrayRegion,

  4883     jni_SetBooleanArrayRegion,

  4884     jni_SetByteArrayRegion,

  4885     jni_SetCharArrayRegion,

  4886     jni_SetShortArrayRegion,

  4887     jni_SetIntArrayRegion,

  4888     jni_SetLongArrayRegion,

  4889     jni_SetFloatArrayRegion,

  4890     jni_SetDoubleArrayRegion,

  4892     jni_RegisterNatives,

  4893     jni_UnregisterNatives,

  4895     jni_MonitorEnter,

  4896     jni_MonitorExit,

  4898     jni_GetJavaVM,

  4900     jni_GetStringRegion,

  4901     jni_GetStringUTFRegion,

  4903     jni_GetPrimitiveArrayCritical,

  4904     jni_ReleasePrimitiveArrayCritical,

  4906     jni_GetStringCritical,

  4907     jni_ReleaseStringCritical,

  4909     jni_NewWeakGlobalRef,

  4910     jni_DeleteWeakGlobalRef,

  4912     jni_ExceptionCheck,

  4914     jni_NewDirectByteBuffer,

  4915     jni_GetDirectBufferAddress,

  4916     jni_GetDirectBufferCapacity,

  4918     // New 1_6 features

  4920     jni_GetObjectRefType

  4921 };

  4924 // For jvmti use to modify jni function table.

  4925 // Java threads in native contiues to run until it is transitioned

  4926 // to VM at safepoint. Before the transition or before it is blocked

  4927 // for safepoint it may access jni function table. VM could crash if

  4928 // any java thread access the jni function table in the middle of memcpy.

  4929 // To avoid this each function pointers are copied automically.

  4930 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4931   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4932   intptr_t *a = (intptr_t *) jni_functions();

  4933   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4934   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4935     Atomic::store_ptr(*b++, a++);

  4936   }

  4937 }

  4939 void quicken_jni_functions() {

  4940   // Replace Get<Primitive>Field with fast versions

  4941   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4942       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4943 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4944       // windows x86 currently needs SEH wrapper and the gain of the fast

  4945       // versions currently isn't certain for server vm on uniprocessor.

  4946       && os::is_MP()

  4947 #endif

  4948   ) {

  4949     address func;

  4950     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4951     if (func != (address)-1) {

  4952       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4953     }

  4954     func = JNI_FastGetField::generate_fast_get_byte_field();

  4955     if (func != (address)-1) {

  4956       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4957     }

  4958     func = JNI_FastGetField::generate_fast_get_char_field();

  4959     if (func != (address)-1) {

  4960       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4961     }

  4962     func = JNI_FastGetField::generate_fast_get_short_field();

  4963     if (func != (address)-1) {

  4964       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4965     }

  4966     func = JNI_FastGetField::generate_fast_get_int_field();

  4967     if (func != (address)-1) {

  4968       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4969     }

  4970     func = JNI_FastGetField::generate_fast_get_long_field();

  4971     if (func != (address)-1) {

  4972       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4973     }

  4974     func = JNI_FastGetField::generate_fast_get_float_field();

  4975     if (func != (address)-1) {

  4976       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4977     }

  4978     func = JNI_FastGetField::generate_fast_get_double_field();

  4979     if (func != (address)-1) {

  4980       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4981     }

  4982   }

  4983 }

  4985 // Returns the function structure

  4986 struct JNINativeInterface_* jni_functions() {

  4987 #if INCLUDE_JNI_CHECK

  4988   if (CheckJNICalls) return jni_functions_check();

  4989 #endif // INCLUDE_JNI_CHECK

  4990   return &jni_NativeInterface;

  4991 }

  4993 // Returns the function structure

  4994 struct JNINativeInterface_* jni_functions_nocheck() {

  4995   return &jni_NativeInterface;

  4996 }

  4999 // Invocation API

  5002 // Forward declaration

  5003 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  5005 // Global invocation API vars

  5006 volatile jint vm_created = 0;

  5007 // Indicate whether it is safe to recreate VM

  5008 volatile jint safe_to_recreate_vm = 1;

  5009 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5012 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5013 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5015 #ifndef USDT2

  5016 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5017 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5018 #else /* USDT2 */

  5019 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5020                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5021 #endif /* USDT2 */

  5023 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5024 #ifndef USDT2

  5025   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5026 #else /* USDT2 */

  5027   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5028                                              args_);

  5029 #endif /* USDT2 */

  5030   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5031   jint ret = JNI_ERR;

  5032   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5034   if (Threads::is_supported_jni_version(args->version)) {

  5035     ret = JNI_OK;

  5036   }

  5037   // 1.1 style no longer supported in hotspot.

  5038   // According the JNI spec, we should update args->version on return.

  5039   // We also use the structure to communicate with launcher about default

  5040   // stack size.

  5041   if (args->version == JNI_VERSION_1_1) {

  5042     args->version = JNI_VERSION_1_2;

  5043     // javaStackSize is int in arguments structure

  5044     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5045     args->javaStackSize = (jint)(ThreadStackSize * K);

  5046   }

  5047   return ret;

  5048 }

  5050 #ifndef PRODUCT

  5052 #include "gc_implementation/shared/gcTimer.hpp"

  5053 #include "gc_interface/collectedHeap.hpp"

  5054 #if INCLUDE_ALL_GCS

  5055 #include "gc_implementation/g1/heapRegionRemSet.hpp"

  5056 #endif

  5057 #include "memory/guardedMemory.hpp"

  5058 #include "utilities/quickSort.hpp"

  5059 #include "utilities/ostream.hpp"

  5060 #if INCLUDE_VM_STRUCTS

  5061 #include "runtime/vmStructs.hpp"

  5062 #endif

  5064 #define run_unit_test(unit_test_function_call)              \

  5065   tty->print_cr("Running test: " #unit_test_function_call); \

  5066   unit_test_function_call

  5068 // Forward declaration

  5069 void TestOS_test();

  5070 void TestReservedSpace_test();

  5071 void TestReserveMemorySpecial_test();

  5072 void TestVirtualSpace_test();

  5073 void TestMetaspaceAux_test();

  5074 void TestMetachunk_test();

  5075 void TestVirtualSpaceNode_test();

  5076 void TestNewSize_test();

  5077 void TestKlass_test();

  5078 void Test_linked_list();

  5079 void TestChunkedList_test();

  5080 #if INCLUDE_ALL_GCS

  5081 void TestOldFreeSpaceCalculation_test();

  5082 void TestG1BiasedArray_test();

  5083 void TestBufferingOopClosure_test();

  5084 void TestCodeCacheRemSet_test();

  5085 void FreeRegionList_test();

  5086 #endif

  5088 void execute_internal_vm_tests() {

  5089   if (ExecuteInternalVMTests) {

  5090     tty->print_cr("Running internal VM tests");

  5091     run_unit_test(TestOS_test());

  5092     run_unit_test(TestReservedSpace_test());

  5093     run_unit_test(TestReserveMemorySpecial_test());

  5094     run_unit_test(TestVirtualSpace_test());

  5095     run_unit_test(TestMetaspaceAux_test());

  5096     run_unit_test(TestMetachunk_test());

  5097     run_unit_test(TestVirtualSpaceNode_test());

  5098     run_unit_test(GlobalDefinitions::test_globals());

  5099     run_unit_test(GCTimerAllTest::all());

  5100     run_unit_test(arrayOopDesc::test_max_array_length());

  5101     run_unit_test(CollectedHeap::test_is_in());

  5102     run_unit_test(QuickSort::test_quick_sort());

  5103     run_unit_test(GuardedMemory::test_guarded_memory());

  5104     run_unit_test(AltHashing::test_alt_hash());

  5105     run_unit_test(test_loggc_filename());

  5106     run_unit_test(TestNewSize_test());

  5107     run_unit_test(TestKlass_test());

  5108     run_unit_test(Test_linked_list());

  5109     run_unit_test(TestChunkedList_test());

  5110 #if INCLUDE_VM_STRUCTS

  5111     run_unit_test(VMStructs::test());

  5112 #endif

  5113 #if INCLUDE_ALL_GCS

  5114     run_unit_test(TestOldFreeSpaceCalculation_test());

  5115     run_unit_test(TestG1BiasedArray_test());

  5116     run_unit_test(HeapRegionRemSet::test_prt());

  5117     run_unit_test(TestBufferingOopClosure_test());

  5118     run_unit_test(TestCodeCacheRemSet_test());

  5119     if (UseG1GC) {

  5120       run_unit_test(FreeRegionList_test());

  5121     }

  5122 #endif

  5123     tty->print_cr("All internal VM tests passed");

  5124   }

  5125 }

  5127 #undef run_unit_test

  5129 #endif

  5131 #ifndef USDT2

  5132 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5133 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5134 #else /* USDT2 */

  5135 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5136                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5137 #endif /* USDT2 */

  5139 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5140 #ifndef USDT2

  5141   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5142 #else /* USDT2 */

  5143   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5144                                  (void **) vm, penv, args);

  5145 #endif /* USDT2 */

  5147   jint result = JNI_ERR;

  5148   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5150   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5151   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5152   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5153   // on all architectures.  So we check it works before relying on it.

  5154 #if defined(ZERO) && defined(ASSERT)

  5155   {

  5156     jint a = 0xcafebabe;

  5157     jint b = Atomic::xchg(0xdeadbeef, &a);

  5158     void *c = &a;

  5159     void *d = Atomic::xchg_ptr(&b, &c);

  5160     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5161     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5162   }

  5163 #endif // ZERO && ASSERT

  5165   // At the moment it's only possible to have one Java VM,

  5166   // since some of the runtime state is in global variables.

  5168   // We cannot use our mutex locks here, since they only work on

  5169   // Threads. We do an atomic compare and exchange to ensure only

  5170   // one thread can call this method at a time

  5172   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5173   // the add/dec implementations are dependent on whether we are running

  5174   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5175   // function used to determine this will always return false. Atomic::xchg

  5176   // does not have this problem.

  5177   if (Atomic::xchg(1, &vm_created) == 1) {

  5178     return JNI_EEXIST;   // already created, or create attempt in progress

  5179   }

  5180   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5181     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5182   }

  5184   assert(vm_created == 1, "vm_created is true during the creation");

  5186   /**

  5187    * Certain errors during initialization are recoverable and do not

  5188    * prevent this method from being called again at a later time

  5189    * (perhaps with different arguments).  However, at a certain

  5190    * point during initialization if an error occurs we cannot allow

  5191    * this function to be called again (or it will crash).  In those

  5192    * situations, the 'canTryAgain' flag is set to false, which atomically

  5193    * sets safe_to_recreate_vm to 1, such that any new call to

  5194    * JNI_CreateJavaVM will immediately fail using the above logic.

  5195    */

  5196   bool can_try_again = true;

  5198   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5199   if (result == JNI_OK) {

  5200     JavaThread *thread = JavaThread::current();

  5201     /* thread is thread_in_vm here */

  5202     *vm = (JavaVM *)(&main_vm);

  5203     *(JNIEnv**)penv = thread->jni_environment();

  5205     // Tracks the time application was running before GC

  5206     RuntimeService::record_application_start();

  5208     // Notify JVMTI

  5209     if (JvmtiExport::should_post_thread_life()) {

  5210        JvmtiExport::post_thread_start(thread);

  5211     }

  5213     EventThreadStart event;

  5214     if (event.should_commit()) {

  5215       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5216       event.commit();

  5217     }

  5219 #ifndef PRODUCT

  5220   #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED

  5221     #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()

  5222   #endif

  5224     // Check if we should compile all classes on bootclasspath

  5225     if (CompileTheWorld) ClassLoader::compile_the_world();

  5226     if (ReplayCompiles) ciReplay::replay(thread);

  5228     // Some platforms (like Win*) need a wrapper around these test

  5229     // functions in order to properly handle error conditions.

  5230     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);

  5231     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);

  5232 #endif

  5234     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5235     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5236   } else {

  5237     if (can_try_again) {

  5238       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5239       safe_to_recreate_vm = 1;

  5240     }

  5242     // Creation failed. We must reset vm_created

  5243     *vm = 0;

  5244     *(JNIEnv**)penv = 0;

  5245     // reset vm_created last to avoid race condition. Use OrderAccess to

  5246     // control both compiler and architectural-based reordering.

  5247     OrderAccess::release_store(&vm_created, 0);

  5248   }

  5250   return result;

  5251 }

  5253 #ifndef USDT2

  5254 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5255   JavaVM**, jsize, jsize*);

  5256 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5257 #endif /* !USDT2 */

  5259 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5260   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5261   // JNIWrapper("GetCreatedJavaVMs");

  5262 #ifndef USDT2

  5263   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5264     vm_buf, bufLen, numVMs);

  5265 #else /* USDT2 */

  5266   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5267                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5268 #endif /* USDT2 */

  5269   if (vm_created) {

  5270     if (numVMs != NULL) *numVMs = 1;

  5271     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5272   } else {

  5273     if (numVMs != NULL) *numVMs = 0;

  5274   }

  5275 #ifndef USDT2

  5276   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5277 #else /* USDT2 */

  5278   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5279                                     JNI_OK);

  5280 #endif /* USDT2 */

  5281   return JNI_OK;

  5282 }

  5284 extern "C" {

  5286 #ifndef USDT2

  5287 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5288 #else /* USDT2 */

  5289 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5290                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5291 #endif /* USDT2 */

  5293 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5294 #ifndef USDT2

  5295   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5296 #else /* USDT2 */

  5297   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5298                                   vm);

  5299 #endif /* USDT2 */

  5300   jint res = JNI_ERR;

  5301   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5303   if (!vm_created) {

  5304     res = JNI_ERR;

  5305     return res;

  5306   }

  5308   JNIWrapper("DestroyJavaVM");

  5309   JNIEnv *env;

  5310   JavaVMAttachArgs destroyargs;

  5311   destroyargs.version = CurrentVersion;

  5312   destroyargs.name = (char *)"DestroyJavaVM";

  5313   destroyargs.group = NULL;

  5314   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5315   if (res != JNI_OK) {

  5316     return res;

  5317   }

  5319   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5320   JavaThread* thread = JavaThread::current();

  5321   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5322   if (Threads::destroy_vm()) {

  5323     // Should not change thread state, VM is gone

  5324     vm_created = false;

  5325     res = JNI_OK;

  5326     return res;

  5327   } else {

  5328     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5329     res = JNI_ERR;

  5330     return res;

  5331   }

  5332 }

  5335 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5336   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5338   // Check below commented out from JDK1.2fcs as well

  5339   /*

  5340   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5341     return JNI_EVERSION;

  5342   }

  5343   */

  5345   Thread* t = ThreadLocalStorage::get_thread_slow();

  5346   if (t != NULL) {

  5347     // If the thread has been attached this operation is a no-op

  5348     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5349     return JNI_OK;

  5350   }

  5352   // Create a thread and mark it as attaching so it will be skipped by the

  5353   // ThreadsListEnumerator - see CR 6404306

  5354   JavaThread* thread = new JavaThread(true);

  5356   // Set correct safepoint info. The thread is going to call into Java when

  5357   // initializing the Java level thread object. Hence, the correct state must

  5358   // be set in order for the Safepoint code to deal with it correctly.

  5359   thread->set_thread_state(_thread_in_vm);

  5360   // Must do this before initialize_thread_local_storage

  5361   thread->record_stack_base_and_size();

  5363   thread->initialize_thread_local_storage();

  5365   if (!os::create_attached_thread(thread)) {

  5366     delete thread;

  5367     return JNI_ERR;

  5368   }

  5369   // Enable stack overflow checks

  5370   thread->create_stack_guard_pages();

  5372   thread->initialize_tlab();

  5374   thread->cache_global_variables();

  5376   // Crucial that we do not have a safepoint check for this thread, since it has

  5377   // not been added to the Thread list yet.

  5378   { Threads_lock->lock_without_safepoint_check();

  5379     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5380     // avoid this thread trying to do a GC before it is added to the thread-list

  5381     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5382     Threads::add(thread, daemon);

  5383     Threads_lock->unlock();

  5384   }

  5385   // Create thread group and name info from attach arguments

  5386   oop group = NULL;

  5387   char* thread_name = NULL;

  5388   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5389     group = JNIHandles::resolve(args->group);

  5390     thread_name = args->name; // may be NULL

  5391   }

  5392   if (group == NULL) group = Universe::main_thread_group();

  5394   // Create Java level thread object and attach it to this thread

  5395   bool attach_failed = false;

  5396   {

  5397     EXCEPTION_MARK;

  5398     HandleMark hm(THREAD);

  5399     Handle thread_group(THREAD, group);

  5400     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5401     if (HAS_PENDING_EXCEPTION) {

  5402       CLEAR_PENDING_EXCEPTION;

  5403       // cleanup outside the handle mark.

  5404       attach_failed = true;

  5405     }

  5406   }

  5408   if (attach_failed) {

  5409     // Added missing cleanup

  5410     thread->cleanup_failed_attach_current_thread();

  5411     return JNI_ERR;

  5412   }

  5414   // mark the thread as no longer attaching

  5415   // this uses a fence to push the change through so we don't have

  5416   // to regrab the threads_lock

  5417   thread->set_done_attaching_via_jni();

  5419   // Set java thread status.

  5420   java_lang_Thread::set_thread_status(thread->threadObj(),

  5421               java_lang_Thread::RUNNABLE);

  5423   // Notify the debugger

  5424   if (JvmtiExport::should_post_thread_life()) {

  5425     JvmtiExport::post_thread_start(thread);

  5426   }

  5428   EventThreadStart event;

  5429   if (event.should_commit()) {

  5430     event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5431     event.commit();

  5432   }

  5434   *(JNIEnv**)penv = thread->jni_environment();

  5436   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5437   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5438   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5439   // needed.

  5441   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5443   // Perform any platform dependent FPU setup

  5444   os::setup_fpu();

  5446   return JNI_OK;

  5447 }

  5450 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5451 #ifndef USDT2

  5452   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5453 #else /* USDT2 */

  5454   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5455                                         vm, penv, _args);

  5456 #endif /* USDT2 */

  5457   if (!vm_created) {

  5458 #ifndef USDT2

  5459     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5460 #else /* USDT2 */

  5461   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5462                                          (uint32_t) JNI_ERR);

  5463 #endif /* USDT2 */

  5464     return JNI_ERR;

  5465   }

  5467   JNIWrapper("AttachCurrentThread");

  5468   jint ret = attach_current_thread(vm, penv, _args, false);

  5469 #ifndef USDT2

  5470   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5471 #else /* USDT2 */

  5472   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5473                                          ret);

  5474 #endif /* USDT2 */

  5475   return ret;

  5476 }

  5479 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5480 #ifndef USDT2

  5481   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5482 #else /* USDT2 */

  5483   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5484                                         vm);

  5485 #endif /* USDT2 */

  5486   VM_Exit::block_if_vm_exited();

  5488   JNIWrapper("DetachCurrentThread");

  5490   // If the thread has been deattacted the operations is a no-op

  5491   if (ThreadLocalStorage::thread() == NULL) {

  5492 #ifndef USDT2

  5493     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5494 #else /* USDT2 */

  5495   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5496                                          JNI_OK);

  5497 #endif /* USDT2 */

  5498     return JNI_OK;

  5499   }

  5501   JavaThread* thread = JavaThread::current();

  5502   if (thread->has_last_Java_frame()) {

  5503 #ifndef USDT2

  5504     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5505 #else /* USDT2 */

  5506   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5507                                          (uint32_t) JNI_ERR);

  5508 #endif /* USDT2 */

  5509     // Can't detach a thread that's running java, that can't work.

  5510     return JNI_ERR;

  5511   }

  5513   // Safepoint support. Have to do call-back to safepoint code, if in the

  5514   // middel of a safepoint operation

  5515   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5517   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5518   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5519   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5520   // of the guards is visible in jni_AttachCurrentThread above,

  5521   // the removal of the guards is buried below in JavaThread::exit()

  5522   // here. The abstraction should be more symmetrically either exposed

  5523   // or hidden (e.g. it could probably be hidden in the same

  5524   // (platform-dependent) methods where we do alternate stack

  5525   // maintenance work?)

  5526   thread->exit(false, JavaThread::jni_detach);

  5527   delete thread;

  5529 #ifndef USDT2

  5530   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5531 #else /* USDT2 */

  5532   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5533                                          JNI_OK);

  5534 #endif /* USDT2 */

  5535   return JNI_OK;

  5536 }

  5538 #ifndef USDT2

  5539 DT_RETURN_MARK_DECL(GetEnv, jint);

  5540 #else /* USDT2 */

  5541 DT_RETURN_MARK_DECL(GetEnv, jint

  5542                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5543 #endif /* USDT2 */

  5545 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5546 #ifndef USDT2

  5547   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5548 #else /* USDT2 */

  5549   HOTSPOT_JNI_GETENV_ENTRY(

  5550                            vm, penv, version);

  5551 #endif /* USDT2 */

  5552   jint ret = JNI_ERR;

  5553   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5555   if (!vm_created) {

  5556     *penv = NULL;

  5557     ret = JNI_EDETACHED;

  5558     return ret;

  5559   }

  5561   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5562     return ret;

  5563   }

  5565 #ifndef JVMPI_VERSION_1

  5566 // need these in order to be polite about older agents

  5567 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5568 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5569 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5570 #endif // !JVMPI_VERSION_1

  5572   Thread* thread = ThreadLocalStorage::thread();

  5573   if (thread != NULL && thread->is_Java_thread()) {

  5574     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5575       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5576       ret = JNI_OK;

  5577       return ret;

  5579     } else if (version == JVMPI_VERSION_1 ||

  5580                version == JVMPI_VERSION_1_1 ||

  5581                version == JVMPI_VERSION_1_2) {

  5582       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5583       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5584       ret = JNI_EVERSION;

  5585       return ret;

  5586     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5587       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5588       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5589       ret = JNI_EVERSION;

  5590       return ret;

  5591     } else {

  5592       *penv = NULL;

  5593       ret = JNI_EVERSION;

  5594       return ret;

  5595     }

  5596   } else {

  5597     *penv = NULL;

  5598     ret = JNI_EDETACHED;

  5599     return ret;

  5600   }

  5601 }

  5604 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5605 #ifndef USDT2

  5606   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5607 #else /* USDT2 */

  5608   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5609                                                 vm, penv, _args);

  5610 #endif /* USDT2 */

  5611   if (!vm_created) {

  5612 #ifndef USDT2

  5613     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5614 #else /* USDT2 */

  5615   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5616                                                  (uint32_t) JNI_ERR);

  5617 #endif /* USDT2 */

  5618     return JNI_ERR;

  5619   }

  5621   JNIWrapper("AttachCurrentThreadAsDaemon");

  5622   jint ret = attach_current_thread(vm, penv, _args, true);

  5623 #ifndef USDT2

  5624   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5625 #else /* USDT2 */

  5626   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5627                                                  ret);

  5628 #endif /* USDT2 */

  5629   return ret;

  5630 }

  5633 } // End extern "C"

  5635 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5636     NULL,

  5637     NULL,

  5638     NULL,

  5640     jni_DestroyJavaVM,

  5641     jni_AttachCurrentThread,

  5642     jni_DetachCurrentThread,

  5643     jni_GetEnv,

  5644     jni_AttachCurrentThreadAsDaemon

  5645 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@32b682649973

src/share/vm/prims/jni.cpp