jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@f0bc60565ba8

7196277: JSR 292: Two jck/runtime tests crash on java.lang.invoke.MethodHandle.invokeExact
Reviewed-by: jrose, kvn

     1 /*

     2  * Copyright (c) 1997, 2013, 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/reflection.hpp"

    71 #include "runtime/sharedRuntime.hpp"

    72 #include "runtime/signature.hpp"

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

    74 #include "runtime/vm_operations.hpp"

    75 #include "services/runtimeService.hpp"

    76 #include "trace/tracing.hpp"

    77 #include "trace/traceEventTypes.hpp"

    78 #include "utilities/defaultStream.hpp"

    79 #include "utilities/dtrace.hpp"

    80 #include "utilities/events.hpp"

    81 #include "utilities/histogram.hpp"

    82 #ifdef TARGET_OS_FAMILY_linux

    83 # include "os_linux.inline.hpp"

    84 #endif

    85 #ifdef TARGET_OS_FAMILY_solaris

    86 # include "os_solaris.inline.hpp"

    87 #endif

    88 #ifdef TARGET_OS_FAMILY_windows

    89 # include "os_windows.inline.hpp"

    90 #endif

    91 #ifdef TARGET_OS_FAMILY_bsd

    92 # include "os_bsd.inline.hpp"

    93 #endif

    95 static jint CurrentVersion = JNI_VERSION_1_8;

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

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

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

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

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

   103 //

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

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

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

   107 // a reference to it).

   108 //

   109 // Example:

   110 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   112 //   int return_value = 0;

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

   114 //   foo(CHECK_0)

   115 //   return_value = 5;

   116 //   return return_value;

   117 // JNI_END

   118 #ifndef USDT2

   119 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   121   DTRACE_ONLY(                                                             \

   122     class DTraceReturnProbeMark_##name {                                   \

   123      public:                                                               \

   124       const type& _ret_ref;                                                \

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

   126       ~DTraceReturnProbeMark_##name() {                                    \

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

   128       }                                                                    \

   129     }                                                                      \

   130   )

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

   132 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   134   DTRACE_ONLY(                                                             \

   135     class DTraceReturnProbeMark_##name {                                   \

   136      public:                                                               \

   137       ~DTraceReturnProbeMark_##name() {                                    \

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

   139       }                                                                    \

   140     }                                                                      \

   141   )

   143 #else /* USDT2 */

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

   146   DTRACE_ONLY(                                                             \

   147     class DTraceReturnProbeMark_##name {                                   \

   148      public:                                                               \

   149       const type& _ret_ref;                                                \

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

   151       ~DTraceReturnProbeMark_##name() {                                    \

   152         probe;                                                             \

   153       }                                                                    \

   154     }                                                                      \

   155   )

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

   157 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   158   DTRACE_ONLY(                                                             \

   159     class DTraceReturnProbeMark_##name {                                   \

   160      public:                                                               \

   161       ~DTraceReturnProbeMark_##name() {                                    \

   162         probe;                                                             \

   163       }                                                                    \

   164     }                                                                      \

   165   )

   166 #endif /* USDT2 */

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

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

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

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

   172 #define DT_VOID_RETURN_MARK(name) \

   173   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   178 // different behavior for Float/Double

   179 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   180 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   181 #define FP_SELECT_Char(intcode, fpcode)    intcode

   182 #define FP_SELECT_Short(intcode, fpcode)   intcode

   183 #define FP_SELECT_Object(intcode, fpcode)  intcode

   184 #define FP_SELECT_Int(intcode, fpcode)     intcode

   185 #define FP_SELECT_Long(intcode, fpcode)    intcode

   186 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   187 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   189   FP_SELECT_##TypeName(intcode, fpcode)

   191 #define COMMA ,

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

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

   195 #ifndef USDT2

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

   197   FP_SELECT(TypeName, \

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

   199 #else /* USDT2 */

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

   201   FP_SELECT(TypeName, \

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

   203 #endif /* USDT2 */

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

   205   FP_SELECT(TypeName, \

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

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

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

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

   213     uintptr_t as_uint = (uintptr_t) id;

   214     intptr_t offset = raw_instance_offset(id);

   215     if (is_checked_jfieldID(id)) {

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

   217         return false;

   218       }

   219     }

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

   221   } else {

   222     JNIid* result = (JNIid*) id;

   223 #ifdef ASSERT

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

   225 #else

   226     return result != NULL;

   227 #endif

   228   }

   229 }

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

   233   if (offset <= small_offset_mask) {

   234     Klass* field_klass = k;

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

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

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

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

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

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

   241       super_klass = field_klass->super();

   242     }

   243     debug_only(No_Safepoint_Verifier nosafepoint;)

   244     uintptr_t klass_hash = field_klass->identity_hash();

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

   246   } else {

   247 #if 0

   248     #ifndef PRODUCT

   249     {

   250       ResourceMark rm;

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

   252     }

   253     #endif

   254 #endif

   255     return 0;

   256   }

   257 }

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

   260   uintptr_t as_uint = (uintptr_t) id;

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

   262   do {

   263     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   266       return true;

   267     k = k->super();

   268   } while (k != NULL);

   269   return false;

   270 }

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

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

   274   uintptr_t as_uint = (uintptr_t) id;

   275   intptr_t offset = raw_instance_offset(id);

   276   if (VerifyJNIFields) {

   277     if (is_checked_jfieldID(id)) {

   278       guarantee(klass_hash_ok(k, id),

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

   280     } else {

   281 #if 0

   282       #ifndef PRODUCT

   283       if (Verbose) {

   284   ResourceMark rm;

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

   286       }

   287       #endif

   288 #endif

   289     }

   290   }

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

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

   293 }

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

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

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

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

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

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

   301 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   304 // Wrapper to trace JNI functions

   306 #ifdef ASSERT

   307   Histogram* JNIHistogram;

   308   static volatile jint JNIHistogram_lock = 0;

   310   class JNITraceWrapper : public StackObj {

   311    public:

   312     JNITraceWrapper(const char* format, ...) {

   313       if (TraceJNICalls) {

   314         va_list ap;

   315         va_start(ap, format);

   316         tty->print("JNI ");

   317         tty->vprint_cr(format, ap);

   318         va_end(ap);

   319       }

   320     }

   321   };

   323   class JNIHistogramElement : public HistogramElement {

   324     public:

   325      JNIHistogramElement(const char* name);

   326   };

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

   329     _name = elementName;

   330     uintx count = 0;

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

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

   334         count +=1;

   335         if ( (WarnOnStalledSpinLock > 0)

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

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

   338         }

   339       }

   340      }

   343     if(JNIHistogram == NULL)

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

   346     JNIHistogram->add_element(this);

   347     Atomic::dec(&JNIHistogram_lock);

   348   }

   350   #define JNICountWrapper(arg)                                     \

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

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

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

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

   355 #else

   356   #define JNIWrapper(arg)

   357 #endif

   360 // Implementation of JNI entries

   362 #ifndef USDT2

   363 DT_RETURN_MARK_DECL(DefineClass, jclass);

   364 #else /* USDT2 */

   365 DT_RETURN_MARK_DECL(DefineClass, jclass

   366                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   367 #endif /* USDT2 */

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

   370                                   const jbyte *buf, jsize bufLen))

   371   JNIWrapper("DefineClass");

   373 #ifndef USDT2

   374   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   376 #else /* USDT2 */

   377   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   379 #endif /* USDT2 */

   380   jclass cls = NULL;

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

   383   TempNewSymbol class_name = NULL;

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

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

   386   if (name != NULL) {

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

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

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

   390       // into the constant pool.

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

   392     }

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

   394   }

   395   ResourceMark rm(THREAD);

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

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

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

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

   401     // If not, increment the corresponding counter

   402     if (ObjectSynchronizer::

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

   404         ObjectSynchronizer::owner_self) {

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

   406     }

   407   }

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

   409                                                      Handle(), &st, true,

   410                                                      CHECK_NULL);

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

   413     trace_class_resolution(k);

   414   }

   416   cls = (jclass)JNIHandles::make_local(

   417     env, k->java_mirror());

   418   return cls;

   419 JNI_END

   423 static bool first_time_FindClass = true;

   425 #ifndef USDT2

   426 DT_RETURN_MARK_DECL(FindClass, jclass);

   427 #else /* USDT2 */

   428 DT_RETURN_MARK_DECL(FindClass, jclass

   429                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   430 #endif /* USDT2 */

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

   433   JNIWrapper("FindClass");

   434 #ifndef USDT2

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

   436 #else /* USDT2 */

   437   HOTSPOT_JNI_FINDCLASS_ENTRY(

   438                               env, (char *)name);

   439 #endif /* USDT2 */

   441   jclass result = NULL;

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

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

   445   bool first_time = first_time_FindClass;

   446   first_time_FindClass = false;

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

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

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

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

   452   }

   454   //%note jni_3

   455   Handle loader;

   456   Handle protection_domain;

   457   // Find calling class

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

   459   if (k.not_null()) {

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

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

   462     // in the correct class context.

   463     if (loader.is_null() &&

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

   465       JavaValue result(T_OBJECT);

   466       JavaCalls::call_static(&result, k,

   467                                       vmSymbols::getFromClass_name(),

   468                                       vmSymbols::void_class_signature(),

   469                                       thread);

   470       if (HAS_PENDING_EXCEPTION) {

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

   472         CLEAR_PENDING_EXCEPTION;

   473         THROW_HANDLE_0(ex);

   474       }

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

   476       loader = Handle(THREAD,

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

   478       protection_domain = Handle(THREAD,

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

   480     }

   481   } else {

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

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

   484   }

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

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

   488                                         protection_domain, true, thread);

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

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

   492   }

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

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

   496   // Controlled by flag DelayCompilationDuringStartup.

   497   if (first_time && !CompileTheWorld)

   498     CompilationPolicy::completed_vm_startup();

   500   return result;

   501 JNI_END

   503 #ifndef USDT2

   504 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   505 #else /* USDT2 */

   506 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   507                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   508 #endif /* USDT2 */

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

   511   JNIWrapper("FromReflectedMethod");

   512 #ifndef USDT2

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

   514 #else /* USDT2 */

   515   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   516                                         env, method);

   517 #endif /* USDT2 */

   518   jmethodID ret = NULL;

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

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

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

   523   oop mirror     = NULL;

   524   int slot       = 0;

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

   527     mirror = java_lang_reflect_Constructor::clazz(reflected);

   528     slot   = java_lang_reflect_Constructor::slot(reflected);

   529   } else {

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

   531     mirror = java_lang_reflect_Method::clazz(reflected);

   532     slot   = java_lang_reflect_Method::slot(reflected);

   533   }

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

   536   KlassHandle k1(THREAD, k);

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

   538   k1()->initialize(CHECK_NULL);

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

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

   541   return ret;

   542 JNI_END

   544 #ifndef USDT2

   545 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   546 #else /* USDT2 */

   547 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   548                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   549 #endif /* USDT2 */

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

   552   JNIWrapper("FromReflectedField");

   553 #ifndef USDT2

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

   555 #else /* USDT2 */

   556   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   557                                        env, field);

   558 #endif /* USDT2 */

   559   jfieldID ret = NULL;

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

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

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

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

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

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

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

   569   KlassHandle k1(THREAD, k);

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

   571   k1()->initialize(CHECK_NULL);

   573   // First check if this is a static field

   574   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   578     debug_only(id->set_is_static_field_id();)

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

   580     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   581     return ret;

   582   }

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

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

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

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

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

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

   590   return ret;

   591 JNI_END

   593 #ifndef USDT2

   594 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   595 #else /* USDT2 */

   596 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   597                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   598 #endif /* USDT2 */

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

   601   JNIWrapper("ToReflectedMethod");

   602 #ifndef USDT2

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

   604 #else /* USDT2 */

   605   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   607 #endif /* USDT2 */

   608   jobject ret = NULL;

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

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

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

   613   oop reflection_method;

   614   if (m->is_initializer()) {

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

   616   } else {

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

   618   }

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

   620   return ret;

   621 JNI_END

   623 #ifndef USDT2

   624 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   625 #else /* USDT2 */

   626 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   627                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   628 #endif /* USDT2 */

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

   631   JNIWrapper("GetSuperclass");

   632 #ifndef USDT2

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

   634 #else /* USDT2 */

   635   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   636                                   env, sub);

   637 #endif /* USDT2 */

   638   jclass obj = NULL;

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

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

   642   // primitive classes return NULL

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

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

   646   // arrays return Object

   647   // interfaces return NULL

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

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

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

   652   // return mirror for superclass

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

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

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

   656                                  ? SystemDictionary::Object_klass()

   657                                  : k->super() ) );

   658   assert(super == super2,

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

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

   661   return obj;

   662 JNI_END

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

   665   JNIWrapper("IsSubclassOf");

   666 #ifndef USDT2

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

   668 #else /* USDT2 */

   669   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   670                                      env, sub, super);

   671 #endif /* USDT2 */

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

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

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

   675       java_lang_Class::is_primitive(super_mirror)) {

   676     jboolean ret = (sub_mirror == super_mirror);

   677 #ifndef USDT2

   678     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   679 #else /* USDT2 */

   680     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   681                                         ret);

   682 #endif /* USDT2 */

   683     return ret;

   684   }

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

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

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

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

   689                    JNI_TRUE : JNI_FALSE;

   690 #ifndef USDT2

   691   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   692 #else /* USDT2 */

   693   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   694                                       ret);

   695 #endif /* USDT2 */

   696   return ret;

   697 JNI_END

   699 #ifndef USDT2

   700 DT_RETURN_MARK_DECL(Throw, jint);

   701 #else /* USDT2 */

   702 DT_RETURN_MARK_DECL(Throw, jint

   703                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   704 #endif /* USDT2 */

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

   707   JNIWrapper("Throw");

   708 #ifndef USDT2

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

   710 #else /* USDT2 */

   711   HOTSPOT_JNI_THROW_ENTRY(

   712  env, obj);

   713 #endif /* USDT2 */

   714   jint ret = JNI_OK;

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

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

   718   ShouldNotReachHere();

   719 JNI_END

   721 #ifndef USDT2

   722 DT_RETURN_MARK_DECL(ThrowNew, jint);

   723 #else /* USDT2 */

   724 DT_RETURN_MARK_DECL(ThrowNew, jint

   725                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   726 #endif /* USDT2 */

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

   729   JNIWrapper("ThrowNew");

   730 #ifndef USDT2

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

   732 #else /* USDT2 */

   733   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   735 #endif /* USDT2 */

   736   jint ret = JNI_OK;

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

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

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

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

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

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

   744   ShouldNotReachHere();

   745 JNI_END

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

   749 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   755 // state transition.

   757 static void jni_check_async_exceptions(JavaThread *thread) {

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

   759   thread->check_and_handle_async_exceptions();

   760 }

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

   763   JNIWrapper("ExceptionOccurred");

   764 #ifndef USDT2

   765   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   766 #else /* USDT2 */

   767   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   768                                       env);

   769 #endif /* USDT2 */

   770   jni_check_async_exceptions(thread);

   771   oop exception = thread->pending_exception();

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

   773 #ifndef USDT2

   774   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   775 #else /* USDT2 */

   776   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   777                                        ret);

   778 #endif /* USDT2 */

   779   return ret;

   780 JNI_END

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

   784   JNIWrapper("ExceptionDescribe");

   785 #ifndef USDT2

   786   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   787 #else /* USDT2 */

   788   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   789                                       env);

   790 #endif /* USDT2 */

   791   if (thread->has_pending_exception()) {

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

   793     thread->clear_pending_exception();

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

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

   796     } else {

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

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

   799         ResourceMark rm(THREAD);

   800         jio_fprintf(defaultStream::error_stream(),

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

   802       }

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

   804         JavaValue result(T_VOID);

   805         JavaCalls::call_virtual(&result,

   806                                 ex,

   807                                 KlassHandle(THREAD,

   808                                   SystemDictionary::Throwable_klass()),

   809                                 vmSymbols::printStackTrace_name(),

   810                                 vmSymbols::void_method_signature(),

   811                                 THREAD);

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

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

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

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

   816         // is expected.

   817         CLEAR_PENDING_EXCEPTION;

   818       } else {

   819         ResourceMark rm(THREAD);

   820         jio_fprintf(defaultStream::error_stream(),

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

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

   823       }

   824     }

   825   }

   826 #ifndef USDT2

   827   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   828 #else /* USDT2 */

   829   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   830                                        );

   831 #endif /* USDT2 */

   832 JNI_END

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

   836   JNIWrapper("ExceptionClear");

   837 #ifndef USDT2

   838   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   839 #else /* USDT2 */

   840   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   841                                    env);

   842 #endif /* USDT2 */

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

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

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

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

   848     state->set_exception_caught();

   849   }

   850   thread->clear_pending_exception();

   851 #ifndef USDT2

   852   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   853 #else /* USDT2 */

   854   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   855                                     );

   856 #endif /* USDT2 */

   857 JNI_END

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

   861   JNIWrapper("FatalError");

   862 #ifndef USDT2

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

   864 #else /* USDT2 */

   865   HOTSPOT_JNI_FATALERROR_ENTRY(

   866                                env, (char *) msg);

   867 #endif /* USDT2 */

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

   869   thread->print_stack();

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

   871 JNI_END

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

   875   JNIWrapper("PushLocalFrame");

   876 #ifndef USDT2

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

   878 #else /* USDT2 */

   879   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   880                                    env, capacity);

   881 #endif /* USDT2 */

   882   //%note jni_11

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

   884 #ifndef USDT2

   885     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   886 #else /* USDT2 */

   887     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   888                                       (uint32_t)JNI_ERR);

   889 #endif /* USDT2 */

   890     return JNI_ERR;

   891   }

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

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

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

   895   new_handles->set_pop_frame_link(old_handles);

   896   thread->set_active_handles(new_handles);

   897   jint ret = JNI_OK;

   898 #ifndef USDT2

   899   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   900 #else /* USDT2 */

   901   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   902                                     ret);

   903 #endif /* USDT2 */

   904   return ret;

   905 JNI_END

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

   909   JNIWrapper("PopLocalFrame");

   910 #ifndef USDT2

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

   912 #else /* USDT2 */

   913   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   914                                   env, result);

   915 #endif /* USDT2 */

   916   //%note jni_11

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

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

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

   920   if (new_handles != NULL) {

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

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

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

   924     // the release_block call will release the blocks.

   925     thread->set_active_handles(new_handles);

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

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

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

   929   }

   930 #ifndef USDT2

   931   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   932 #else /* USDT2 */

   933   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   934                                    result);

   935 #endif /* USDT2 */

   936   return result;

   937 JNI_END

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

   941   JNIWrapper("NewGlobalRef");

   942 #ifndef USDT2

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

   944 #else /* USDT2 */

   945   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   946                                  env, ref);

   947 #endif /* USDT2 */

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

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

   950 #ifndef USDT2

   951   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   952 #else /* USDT2 */

   953   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   954                                   ret);

   955 #endif /* USDT2 */

   956   return ret;

   957 JNI_END

   959 // Must be JNI_ENTRY (with HandleMark)

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

   961   JNIWrapper("DeleteGlobalRef");

   962 #ifndef USDT2

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

   964 #else /* USDT2 */

   965   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   966                                     env, ref);

   967 #endif /* USDT2 */

   968   JNIHandles::destroy_global(ref);

   969 #ifndef USDT2

   970   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   971 #else /* USDT2 */

   972   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   973                                      );

   974 #endif /* USDT2 */

   975 JNI_END

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

   978   JNIWrapper("DeleteLocalRef");

   979 #ifndef USDT2

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

   981 #else /* USDT2 */

   982   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   983                                    env, obj);

   984 #endif /* USDT2 */

   985   JNIHandles::destroy_local(obj);

   986 #ifndef USDT2

   987   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   988 #else /* USDT2 */

   989   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   990                                     );

   991 #endif /* USDT2 */

   992 JNI_END

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

   995   JNIWrapper("IsSameObject");

   996 #ifndef USDT2

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

   998 #else /* USDT2 */

   999   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

  1000                                  env, r1, r2);

  1001 #endif /* USDT2 */

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

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

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

  1005 #ifndef USDT2

  1006   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1007 #else /* USDT2 */

  1008   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1009                                   ret);

  1010 #endif /* USDT2 */

  1011   return ret;

  1012 JNI_END

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

  1016   JNIWrapper("NewLocalRef");

  1017 #ifndef USDT2

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

  1019 #else /* USDT2 */

  1020   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1021                                 env, ref);

  1022 #endif /* USDT2 */

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

  1024 #ifndef USDT2

  1025   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1026 #else /* USDT2 */

  1027   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1028                                  ret);

  1029 #endif /* USDT2 */

  1030   return ret;

  1031 JNI_END

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

  1034   JNIWrapper("EnsureLocalCapacity");

  1035 #ifndef USDT2

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

  1037 #else /* USDT2 */

  1038   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1039                                         env, capacity);

  1040 #endif /* USDT2 */

  1041   jint ret;

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

  1043     ret = JNI_OK;

  1044   } else {

  1045     ret = JNI_ERR;

  1046   }

  1047 #ifndef USDT2

  1048   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1049 #else /* USDT2 */

  1050   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1051                                          ret);

  1052 #endif /* USDT2 */

  1053   return ret;

  1054 JNI_END

  1056 // Return the Handle Type

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

  1058   JNIWrapper("GetObjectRefType");

  1059 #ifndef USDT2

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

  1061 #else /* USDT2 */

  1062   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1063                                      env, obj);

  1064 #endif /* USDT2 */

  1065   jobjectRefType ret;

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

  1067       JNIHandles::is_frame_handle(thread, obj))

  1068     ret = JNILocalRefType;

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

  1070     ret = JNIGlobalRefType;

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

  1072     ret = JNIWeakGlobalRefType;

  1073   else

  1074     ret = JNIInvalidRefType;

  1075 #ifndef USDT2

  1076   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1077 #else /* USDT2 */

  1078   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1079                                       (void *) ret);

  1080 #endif /* USDT2 */

  1081   return ret;

  1082 JNI_END

  1085 class JNI_ArgumentPusher : public SignatureIterator {

  1086  protected:

  1087   JavaCallArguments*  _arguments;

  1089   virtual void get_bool   () = 0;

  1090   virtual void get_char   () = 0;

  1091   virtual void get_short  () = 0;

  1092   virtual void get_byte   () = 0;

  1093   virtual void get_int    () = 0;

  1094   virtual void get_long   () = 0;

  1095   virtual void get_float  () = 0;

  1096   virtual void get_double () = 0;

  1097   virtual void get_object () = 0;

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

  1100     this->_return_type = T_ILLEGAL;

  1101     _arguments = NULL;

  1102   }

  1104  public:

  1105   virtual void iterate( uint64_t fingerprint ) = 0;

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

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

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

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

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

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

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

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

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

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

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

  1119   inline void do_void()                     { }

  1121   JavaCallArguments* arguments()     { return _arguments; }

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

  1123 };

  1126 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1127  protected:

  1128   va_list _ap;

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

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

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

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

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

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

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

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

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

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

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

  1144   inline void set_ap(va_list rap) {

  1145 #ifdef va_copy

  1146     va_copy(_ap, rap);

  1147 #elif defined (__va_copy)

  1148     __va_copy(_ap, rap);

  1149 #else

  1150     _ap = rap;

  1151 #endif

  1152   }

  1154  public:

  1155   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1156        : JNI_ArgumentPusher(signature) {

  1157     set_ap(rap);

  1158   }

  1159   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

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

  1161     set_ap(rap);

  1162   }

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

  1165   void iterate( uint64_t fingerprint ) {

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

  1167     else {

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

  1169                                   result_feature_mask);

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

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

  1173       while ( 1 ) {

  1174         switch ( fingerprint & parameter_feature_mask ) {

  1175           case bool_parm:

  1176           case char_parm:

  1177           case short_parm:

  1178           case byte_parm:

  1179           case int_parm:

  1180             get_int();

  1181             break;

  1182           case obj_parm:

  1183             get_object();

  1184             break;

  1185           case long_parm:

  1186             get_long();

  1187             break;

  1188           case float_parm:

  1189             get_float();

  1190             break;

  1191           case double_parm:

  1192             get_double();

  1193             break;

  1194           case done_parm:

  1195             return;

  1196             break;

  1197           default:

  1198             ShouldNotReachHere();

  1199             break;

  1200         }

  1201         fingerprint >>= parameter_feature_size;

  1202       }

  1203     }

  1204   }

  1205 };

  1208 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1209  protected:

  1210   const jvalue *_ap;

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

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

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

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

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

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

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

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

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

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

  1225  public:

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

  1227        : JNI_ArgumentPusher(signature) {

  1228     set_ap(rap);

  1229   }

  1230   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

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

  1232     set_ap(rap);

  1233   }

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

  1236   void iterate( uint64_t fingerprint ) {

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

  1238     else {

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

  1240                                   result_feature_mask);

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

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

  1243       while ( 1 ) {

  1244         switch ( fingerprint & parameter_feature_mask ) {

  1245           case bool_parm:

  1246             get_bool();

  1247             break;

  1248           case char_parm:

  1249             get_char();

  1250             break;

  1251           case short_parm:

  1252             get_short();

  1253             break;

  1254           case byte_parm:

  1255             get_byte();

  1256             break;

  1257           case int_parm:

  1258             get_int();

  1259             break;

  1260           case obj_parm:

  1261             get_object();

  1262             break;

  1263           case long_parm:

  1264             get_long();

  1265             break;

  1266           case float_parm:

  1267             get_float();

  1268             break;

  1269           case double_parm:

  1270             get_double();

  1271             break;

  1272           case done_parm:

  1273             return;

  1274             break;

  1275           default:

  1276             ShouldNotReachHere();

  1277             break;

  1278         }

  1279         fingerprint >>= parameter_feature_size;

  1280       }

  1281     }

  1282   }

  1283 };

  1286 enum JNICallType {

  1287   JNI_STATIC,

  1288   JNI_VIRTUAL,

  1289   JNI_NONVIRTUAL

  1290 };

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

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

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

  1298   // the jni parser

  1299   ResourceMark rm(THREAD);

  1300   int number_of_parameters = method->size_of_parameters();

  1301   JavaCallArguments java_args(number_of_parameters);

  1302   args->set_java_argument_object(&java_args);

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

  1306   // Fill out JavaCallArguments object

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

  1308   // Initialize result type

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

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

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

  1314   // Convert result

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

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

  1317   }

  1318 }

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

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

  1323   if (recv == NULL) {

  1324     THROW(vmSymbols::java_lang_NullPointerException());

  1325   }

  1326   Handle h_recv(THREAD, recv);

  1328   int number_of_parameters;

  1329   Method* selected_method;

  1330   {

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

  1332     number_of_parameters = m->size_of_parameters();

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

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

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

  1336       debug_only(No_Safepoint_Verifier nosafepoint;)

  1337       if (call_type == JNI_VIRTUAL) {

  1338         // jni_GetMethodID makes sure class is linked and initialized

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

  1340         int vtbl_index = m->vtable_index();

  1341         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1342           Klass* k = h_recv->klass();

  1343           // k might be an arrayKlassOop but all vtables start at

  1344           // the same place. The cast is to avoid virtual call and assertion.

  1345           InstanceKlass *ik = (InstanceKlass*)k;

  1346           selected_method = ik->method_at_vtable(vtbl_index);

  1347         } else {

  1348           // final method

  1349           selected_method = m;

  1350         }

  1351       } else {

  1352         // JNI_NONVIRTUAL call

  1353         selected_method = m;

  1354       }

  1355     } else {

  1356       // interface call

  1357       KlassHandle h_holder(THREAD, holder);

  1359       int itbl_index = m->cached_itable_index();

  1360       if (itbl_index == -1) {

  1361         itbl_index = klassItable::compute_itable_index(m);

  1362         m->set_cached_itable_index(itbl_index);

  1363         // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again

  1364       }

  1365       Klass* k = h_recv->klass();

  1366       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1367     }

  1368   }

  1370   methodHandle method(THREAD, selected_method);

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

  1373   // the jni parser

  1374   ResourceMark rm(THREAD);

  1375   JavaCallArguments java_args(number_of_parameters);

  1376   args->set_java_argument_object(&java_args);

  1378   // handle arguments

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

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

  1382   // Fill out JavaCallArguments object

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

  1384   // Initialize result type

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

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

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

  1390   // Convert result

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

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

  1393   }

  1394 }

  1397 static instanceOop alloc_object(jclass clazz, TRAPS) {

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

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

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

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

  1402   return ih;

  1403 }

  1405 #ifndef USDT2

  1406 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1407 #else /* USDT2 */

  1408 DT_RETURN_MARK_DECL(AllocObject, jobject

  1409                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1410 #endif /* USDT2 */

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

  1413   JNIWrapper("AllocObject");

  1415 #ifndef USDT2

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

  1417 #else /* USDT2 */

  1418   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1419                                 env, clazz);

  1420 #endif /* USDT2 */

  1421   jobject ret = NULL;

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

  1424   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1426   return ret;

  1427 JNI_END

  1429 #ifndef USDT2

  1430 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1431 #else /* USDT2 */

  1432 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1433                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1434 #endif /* USDT2 */

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

  1437   JNIWrapper("NewObjectA");

  1438 #ifndef USDT2

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

  1440 #else /* USDT2 */

  1441   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1442                                env, clazz, (uintptr_t) methodID);

  1443 #endif /* USDT2 */

  1444   jobject obj = NULL;

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

  1447   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1449   JavaValue jvalue(T_VOID);

  1450   JNI_ArgumentPusherArray ap(methodID, args);

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

  1452   return obj;

  1453 JNI_END

  1455 #ifndef USDT2

  1456 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1457 #else /* USDT2 */

  1458 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1459                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1460 #endif /* USDT2 */

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

  1463   JNIWrapper("NewObjectV");

  1464 #ifndef USDT2

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

  1466 #else /* USDT2 */

  1467   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1468                                env, clazz, (uintptr_t) methodID);

  1469 #endif /* USDT2 */

  1470   jobject obj = NULL;

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

  1473   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1475   JavaValue jvalue(T_VOID);

  1476   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  1478   return obj;

  1479 JNI_END

  1481 #ifndef USDT2

  1482 DT_RETURN_MARK_DECL(NewObject, jobject);

  1483 #else /* USDT2 */

  1484 DT_RETURN_MARK_DECL(NewObject, jobject

  1485                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1486 #endif /* USDT2 */

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

  1489   JNIWrapper("NewObject");

  1490 #ifndef USDT2

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

  1492 #else /* USDT2 */

  1493   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1494                               env, clazz, (uintptr_t) methodID);

  1495 #endif /* USDT2 */

  1496   jobject obj = NULL;

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

  1499   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1501   va_list args;

  1502   va_start(args, methodID);

  1503   JavaValue jvalue(T_VOID);

  1504   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  1506   va_end(args);

  1507   return obj;

  1508 JNI_END

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

  1512   JNIWrapper("GetObjectClass");

  1513 #ifndef USDT2

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

  1515 #else /* USDT2 */

  1516   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1517                                    env, obj);

  1518 #endif /* USDT2 */

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

  1520   jclass ret =

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

  1522 #ifndef USDT2

  1523   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1524 #else /* USDT2 */

  1525   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1526                                     ret);

  1527 #endif /* USDT2 */

  1528   return ret;

  1529 JNI_END

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

  1532   JNIWrapper("IsInstanceOf");

  1533 #ifndef USDT2

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

  1535 #else /* USDT2 */

  1536   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1537                                  env, obj, clazz);

  1538 #endif /* USDT2 */

  1539   jboolean ret = JNI_TRUE;

  1540   if (obj != NULL) {

  1541     ret = JNI_FALSE;

  1542     Klass* k = java_lang_Class::as_Klass(

  1543       JNIHandles::resolve_non_null(clazz));

  1544     if (k != NULL) {

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

  1546     }

  1547   }

  1548 #ifndef USDT2

  1549   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1550 #else /* USDT2 */

  1551   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1552                                   ret);

  1553 #endif /* USDT2 */

  1554   return ret;

  1555 JNI_END

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

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

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

  1561   //

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

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

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

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

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

  1567                         : name_str;

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

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

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

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

  1573   }

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

  1576   // primitive java.lang.Class

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

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

  1579   }

  1581   KlassHandle klass(THREAD,

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

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

  1585   // Method*s.

  1586   klass()->initialize(CHECK_NULL);

  1588   Method* m;

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

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

  1591     // Never search superclasses for constructors

  1592     if (klass->oop_is_instance()) {

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

  1594     } else {

  1595       m = NULL;

  1596     }

  1597   } else {

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

  1599     // Look up interfaces

  1600     if (m == NULL && klass->oop_is_instance()) {

  1601       m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,

  1602                                                                    signature);

  1603     }

  1604   }

  1605   if (m == NULL || (m->is_static() != is_static)) {

  1606     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1607   }

  1608   return m->jmethod_id();

  1609 }

  1612 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1613           const char *name, const char *sig))

  1614   JNIWrapper("GetMethodID");

  1615 #ifndef USDT2

  1616   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1617 #else /* USDT2 */

  1618   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1619                                 env, clazz, (char *) name, (char *) sig);

  1620 #endif /* USDT2 */

  1621   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1622 #ifndef USDT2

  1623   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1624 #else /* USDT2 */

  1625   HOTSPOT_JNI_GETMETHODID_RETURN(

  1626                                  (uintptr_t) ret);

  1627 #endif /* USDT2 */

  1628   return ret;

  1629 JNI_END

  1632 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1633           const char *name, const char *sig))

  1634   JNIWrapper("GetStaticMethodID");

  1635 #ifndef USDT2

  1636   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1637 #else /* USDT2 */

  1638   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1639                                       env, (char *) clazz, (char *) name, (char *)sig);

  1640 #endif /* USDT2 */

  1641   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1642 #ifndef USDT2

  1643   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1644 #else /* USDT2 */

  1645   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1646                                        (uintptr_t) ret);

  1647 #endif /* USDT2 */

  1648   return ret;

  1649 JNI_END

  1653 //

  1654 // Calling Methods

  1655 //

  1657 #ifndef USDT2

  1658 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1659 \

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

  1661   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\

  1662   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1663 \

  1664 JNI_ENTRY(ResultType, \

  1665           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1666   JNIWrapper("Call" XSTR(Result) "Method"); \

  1667 \

  1668   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1669   ResultType ret = 0;\

  1670   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1671                      (const ResultType&)ret);\

  1672 \

  1673   va_list args; \

  1674   va_start(args, methodID); \

  1675   JavaValue jvalue(Tag); \

  1676   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1677   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1678   va_end(args); \

  1679   ret = jvalue.get_##ResultType(); \

  1680   return ret;\

  1681 JNI_END \

  1682 \

  1683 \

  1684 JNI_ENTRY(ResultType, \

  1685           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1686   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1687 \

  1688   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1689   ResultType ret = 0;\

  1690   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1691                      (const ResultType&)ret);\

  1692 \

  1693   JavaValue jvalue(Tag); \

  1694   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1695   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1696   ret = jvalue.get_##ResultType(); \

  1697   return ret;\

  1698 JNI_END \

  1699 \

  1700 \

  1701 JNI_ENTRY(ResultType, \

  1702           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1703   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1704   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1705   ResultType ret = 0;\

  1706   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1707                      (const ResultType&)ret);\

  1708 \

  1709   JavaValue jvalue(Tag); \

  1710   JNI_ArgumentPusherArray ap(methodID, args); \

  1711   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1712   ret = jvalue.get_##ResultType(); \

  1713   return ret;\

  1714 JNI_END

  1716 // the runtime type of subword integral basic types is integer

  1717 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1718 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1719 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1720 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1722 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1723 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1724 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1725 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1726 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1728 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1729 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1730 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1732 #else /* USDT2 */

  1734 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1735                           , EntryProbe, ReturnProbe)    \

  1736 \

  1737   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1738                           , ReturnProbe);                          \

  1739 \

  1740 JNI_ENTRY(ResultType, \

  1741           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1742   JNIWrapper("Call" XSTR(Result) "Method"); \

  1743 \

  1744   EntryProbe; \

  1745   ResultType ret = 0;\

  1746   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1747                      (const ResultType&)ret);\

  1748 \

  1749   va_list args; \

  1750   va_start(args, methodID); \

  1751   JavaValue jvalue(Tag); \

  1752   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1753   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1754   va_end(args); \

  1755   ret = jvalue.get_##ResultType(); \

  1756   return ret;\

  1757 JNI_END

  1759 // the runtime type of subword integral basic types is integer

  1760 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1761                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1762                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1763 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

  1764                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1765                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1766 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

  1767                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1768                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1769 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

  1770                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1771                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1773 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1774                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1775                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1776 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

  1777                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1778                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1779 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

  1780                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1781                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1782 // Float and double probes don't return value because dtrace doesn't currently support it

  1783 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1784                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1785                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1786 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

  1787                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1788                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1790 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1791                           , EntryProbe, ReturnProbe)    \

  1792 \

  1793   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1794                           , ReturnProbe);                          \

  1795 \

  1796 JNI_ENTRY(ResultType, \

  1797           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1798   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1799 \

  1800   EntryProbe;\

  1801   ResultType ret = 0;\

  1802   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1803                      (const ResultType&)ret);\

  1804 \

  1805   JavaValue jvalue(Tag); \

  1806   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1807   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1808   ret = jvalue.get_##ResultType(); \

  1809   return ret;\

  1810 JNI_END

  1812 // the runtime type of subword integral basic types is integer

  1813 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

  1814                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1815                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1816 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

  1817                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1818                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1819 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

  1820                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1821                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1822 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

  1823                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1824                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1826 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1827                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1828                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1829 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

  1830                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1831                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1832 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

  1833                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1834                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1835 // Float and double probes don't return value because dtrace doesn't currently support it

  1836 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1837                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1838                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1839 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

  1840                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1841                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1843 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1844                           , EntryProbe, ReturnProbe)    \

  1845 \

  1846   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1847                           , ReturnProbe);                          \

  1848 \

  1849 JNI_ENTRY(ResultType, \

  1850           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1851   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1852   EntryProbe; \

  1853   ResultType ret = 0;\

  1854   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1855                      (const ResultType&)ret);\

  1856 \

  1857   JavaValue jvalue(Tag); \

  1858   JNI_ArgumentPusherArray ap(methodID, args); \

  1859   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1860   ret = jvalue.get_##ResultType(); \

  1861   return ret;\

  1862 JNI_END

  1864 // the runtime type of subword integral basic types is integer

  1865 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

  1866                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1867                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1868 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

  1869                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1870                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1871 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

  1872                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1873                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1874 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

  1875                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1876                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1878 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1879                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1880                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1881 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

  1882                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1883                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1884 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

  1885                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1886                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1887 // Float and double probes don't return value because dtrace doesn't currently support it

  1888 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1889                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1890                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1891 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1892                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1893                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1895 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1896 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1897 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1899 #endif /* USDT2 */

  1901 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1902   JNIWrapper("CallVoidMethod");

  1903 #ifndef USDT2

  1904   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1905 #else /* USDT2 */

  1906   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1907                                    env, obj, (uintptr_t) methodID);

  1908 #endif /* USDT2 */

  1909   DT_VOID_RETURN_MARK(CallVoidMethod);

  1911   va_list args;

  1912   va_start(args, methodID);

  1913   JavaValue jvalue(T_VOID);

  1914   JNI_ArgumentPusherVaArg ap(methodID, args);

  1915   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1916   va_end(args);

  1917 JNI_END

  1920 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1921   JNIWrapper("CallVoidMethodV");

  1922 #ifndef USDT2

  1923   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1924 #else /* USDT2 */

  1925   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1926                                     env, obj, (uintptr_t) methodID);

  1927 #endif /* USDT2 */

  1928   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1930   JavaValue jvalue(T_VOID);

  1931   JNI_ArgumentPusherVaArg ap(methodID, args);

  1932   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1933 JNI_END

  1936 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1937   JNIWrapper("CallVoidMethodA");

  1938 #ifndef USDT2

  1939   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1940 #else /* USDT2 */

  1941   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1942                                     env, obj, (uintptr_t) methodID);

  1943 #endif /* USDT2 */

  1944   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1946   JavaValue jvalue(T_VOID);

  1947   JNI_ArgumentPusherArray ap(methodID, args);

  1948   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1949 JNI_END

  1952 #ifndef USDT2

  1953 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1954 \

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

  1956   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\

  1957   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1958 \

  1959 JNI_ENTRY(ResultType, \

  1960           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1961   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1962 \

  1963   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1964   ResultType ret;\

  1965   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1966                      (const ResultType&)ret);\

  1967 \

  1968   va_list args; \

  1969   va_start(args, methodID); \

  1970   JavaValue jvalue(Tag); \

  1971   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1972   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1973   va_end(args); \

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

  1975   return ret;\

  1976 JNI_END \

  1977 \

  1978 JNI_ENTRY(ResultType, \

  1979           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  1980   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

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

  1982   ResultType ret;\

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

  1984                      (const ResultType&)ret);\

  1985 \

  1986   JavaValue jvalue(Tag); \

  1987   JNI_ArgumentPusherVaArg 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 \

  1992 \

  1993 JNI_ENTRY(ResultType, \

  1994           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  1995   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  1996   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  1997   ResultType ret;\

  1998   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  1999                      (const ResultType&)ret);\

  2000 \

  2001   JavaValue jvalue(Tag); \

  2002   JNI_ArgumentPusherArray ap(methodID, args); \

  2003   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2004   ret = jvalue.get_##ResultType(); \

  2005   return ret;\

  2006 JNI_END

  2008 // the runtime type of subword integral basic types is integer

  2009 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2010 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2011 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2012 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2014 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2015 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2016 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2017 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2018 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2021 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2022 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2023 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2025 #else /* USDT2 */

  2027 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2028                                     , EntryProbe, ReturnProbe)      \

  2029 \

  2030   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2031                           , ReturnProbe);\

  2032 \

  2033 JNI_ENTRY(ResultType, \

  2034           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2035   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2036 \

  2037   EntryProbe;\

  2038   ResultType ret;\

  2039   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2040                      (const ResultType&)ret);\

  2041 \

  2042   va_list args; \

  2043   va_start(args, methodID); \

  2044   JavaValue jvalue(Tag); \

  2045   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2046   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2047   va_end(args); \

  2048   ret = jvalue.get_##ResultType(); \

  2049   return ret;\

  2050 JNI_END

  2052 // the runtime type of subword integral basic types is integer

  2053 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2054                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2055                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2056 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

  2057                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2058                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2059 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

  2060                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2061                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2062 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

  2063                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2064                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2066 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2067                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2068                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2069 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

  2070                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2071                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2072 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

  2073                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2074 // Float and double probes don't return value because dtrace doesn't currently support it

  2075                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2076 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2077                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2078                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2079 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

  2080                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2081                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2083 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2084                                     , EntryProbe, ReturnProbe)      \

  2085 \

  2086   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2087                           , ReturnProbe);\

  2088 \

  2089 JNI_ENTRY(ResultType, \

  2090           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2091   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2092 \

  2093   EntryProbe;\

  2094   ResultType ret;\

  2095   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2096                      (const ResultType&)ret);\

  2097 \

  2098   JavaValue jvalue(Tag); \

  2099   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2100   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2101   ret = jvalue.get_##ResultType(); \

  2102   return ret;\

  2103 JNI_END

  2105 // the runtime type of subword integral basic types is integer

  2106 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

  2107                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2108                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2109 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

  2110                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2111                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2112 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

  2113                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2114                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2115 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

  2116                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2117                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2119 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2120                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2121                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2122 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

  2123                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2124                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2125 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

  2126                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2127 // Float and double probes don't return value because dtrace doesn't currently support it

  2128                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2129 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2130                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2131                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2132 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

  2133                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2134                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2136 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2137                                     , EntryProbe, ReturnProbe)      \

  2138 \

  2139   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2140                           , ReturnProbe);\

  2141 \

  2142 JNI_ENTRY(ResultType, \

  2143           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2144   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2145 \

  2146   EntryProbe;\

  2147   ResultType ret;\

  2148   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2149                      (const ResultType&)ret);\

  2150 \

  2151   JavaValue jvalue(Tag); \

  2152   JNI_ArgumentPusherArray ap(methodID, args); \

  2153   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2154   ret = jvalue.get_##ResultType(); \

  2155   return ret;\

  2156 JNI_END

  2158 // the runtime type of subword integral basic types is integer

  2159 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

  2160                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2161                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2162 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

  2163                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2164                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2165 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

  2166                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2167                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2168 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

  2169                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2170                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2172 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2173                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2174                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2175 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

  2176                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2177                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2178 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

  2179                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2180 // Float and double probes don't return value because dtrace doesn't currently support it

  2181                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2182 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2183                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2184                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2185 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2186                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2187                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2189 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2190                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2191 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2192                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2193 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2194                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2195 #endif /* USDT2 */

  2197 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2198   JNIWrapper("CallNonvirtualVoidMethod");

  2200 #ifndef USDT2

  2201   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2202                env, obj, cls, methodID);

  2203 #else /* USDT2 */

  2204   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2205                env, obj, cls, (uintptr_t) methodID);

  2206 #endif /* USDT2 */

  2207   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2209   va_list args;

  2210   va_start(args, methodID);

  2211   JavaValue jvalue(T_VOID);

  2212   JNI_ArgumentPusherVaArg ap(methodID, args);

  2213   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2214   va_end(args);

  2215 JNI_END

  2218 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2219   JNIWrapper("CallNonvirtualVoidMethodV");

  2221 #ifndef USDT2

  2222   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2223                env, obj, cls, methodID);

  2224 #else /* USDT2 */

  2225   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2226                env, obj, cls, (uintptr_t) methodID);

  2227 #endif /* USDT2 */

  2228   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2230   JavaValue jvalue(T_VOID);

  2231   JNI_ArgumentPusherVaArg ap(methodID, args);

  2232   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2233 JNI_END

  2236 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2237   JNIWrapper("CallNonvirtualVoidMethodA");

  2238 #ifndef USDT2

  2239   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2240                 env, obj, cls, methodID);

  2241 #else /* USDT2 */

  2242   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2243                 env, obj, cls, (uintptr_t) methodID);

  2244 #endif /* USDT2 */

  2245   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2246   JavaValue jvalue(T_VOID);

  2247   JNI_ArgumentPusherArray ap(methodID, args);

  2248   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2249 JNI_END

  2252 #ifndef USDT2

  2253 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2254 \

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

  2256   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\

  2257   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2258 \

  2259 JNI_ENTRY(ResultType, \

  2260           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2261   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2262 \

  2263   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2264   ResultType ret = 0;\

  2265   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2266                      (const ResultType&)ret);\

  2267 \

  2268   va_list args; \

  2269   va_start(args, methodID); \

  2270   JavaValue jvalue(Tag); \

  2271   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2272   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2273   va_end(args); \

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

  2275   return ret;\

  2276 JNI_END \

  2277 \

  2278 JNI_ENTRY(ResultType, \

  2279           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

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

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

  2282   ResultType ret = 0;\

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

  2284                      (const ResultType&)ret);\

  2285 \

  2286   JavaValue jvalue(Tag); \

  2287   JNI_ArgumentPusherVaArg 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 \

  2292 \

  2293 JNI_ENTRY(ResultType, \

  2294           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2295   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2296   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2297   ResultType ret = 0;\

  2298   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2299                      (const ResultType&)ret);\

  2300 \

  2301   JavaValue jvalue(Tag); \

  2302   JNI_ArgumentPusherArray ap(methodID, args); \

  2303   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2304   ret = jvalue.get_##ResultType(); \

  2305   return ret;\

  2306 JNI_END

  2308 // the runtime type of subword integral basic types is integer

  2309 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2310 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2311 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2312 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2314 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2315 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2316 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2317 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2318 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2321 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2322 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2323 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2325 #else /* USDT2 */

  2327 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2328                                 , EntryProbe, ResultProbe) \

  2329 \

  2330   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2331                           , ResultProbe);                               \

  2332 \

  2333 JNI_ENTRY(ResultType, \

  2334           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2335   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2336 \

  2337   EntryProbe; \

  2338   ResultType ret = 0;\

  2339   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2340                      (const ResultType&)ret);\

  2341 \

  2342   va_list args; \

  2343   va_start(args, methodID); \

  2344   JavaValue jvalue(Tag); \

  2345   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2346   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2347   va_end(args); \

  2348   ret = jvalue.get_##ResultType(); \

  2349   return ret;\

  2350 JNI_END

  2352 // the runtime type of subword integral basic types is integer

  2353 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2354                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2355                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2356 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

  2357                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2358                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2359 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

  2360                         , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2361                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2362 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

  2363                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2364                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2366 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2367                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2368                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2369 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

  2370                         , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2371                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2372 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

  2373                         , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2374                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2375 // Float and double probes don't return value because dtrace doesn't currently support it

  2376 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2377                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2378                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2379 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

  2380                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2381                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2383 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2384                                 , EntryProbe, ResultProbe) \

  2385 \

  2386   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2387                           , ResultProbe);                               \

  2388 \

  2389 JNI_ENTRY(ResultType, \

  2390           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2391   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2392 \

  2393   EntryProbe; \

  2394   ResultType ret = 0;\

  2395   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2396                      (const ResultType&)ret);\

  2397 \

  2398   JavaValue jvalue(Tag); \

  2399   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2400   /* Make sure class is initialized before trying to invoke its method */ \

  2401   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2402   k()->initialize(CHECK_0); \

  2403   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2404   va_end(args); \

  2405   ret = jvalue.get_##ResultType(); \

  2406   return ret;\

  2407 JNI_END

  2409 // the runtime type of subword integral basic types is integer

  2410 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

  2411                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2412                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2413 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

  2414                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2415                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2416 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

  2417                         , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2418                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2419 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

  2420                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2421                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2423 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2424                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2425                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2426 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

  2427                         , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2428                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2429 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

  2430                         , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2431                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2432 // Float and double probes don't return value because dtrace doesn't currently support it

  2433 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2434                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2435                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2436 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

  2437                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2438                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2440 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2441                                 , EntryProbe, ResultProbe) \

  2442 \

  2443   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2444                           , ResultProbe);                               \

  2445 \

  2446 JNI_ENTRY(ResultType, \

  2447           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2448   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2449 \

  2450   EntryProbe; \

  2451   ResultType ret = 0;\

  2452   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2453                      (const ResultType&)ret);\

  2454 \

  2455   JavaValue jvalue(Tag); \

  2456   JNI_ArgumentPusherArray ap(methodID, args); \

  2457   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2458   ret = jvalue.get_##ResultType(); \

  2459   return ret;\

  2460 JNI_END

  2462 // the runtime type of subword integral basic types is integer

  2463 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

  2464                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2465                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2466 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

  2467                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2468                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2469 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

  2470                         , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2471                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2472 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

  2473                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2474                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2476 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2477                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2478                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2479 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

  2480                         , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2481                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2482 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

  2483                         , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2484                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2485 // Float and double probes don't return value because dtrace doesn't currently support it

  2486 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2487                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2488                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2489 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2490                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2491                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2493 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2494                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2495 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2496                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2497 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2498                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2499 #endif /* USDT2 */

  2501 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2502   JNIWrapper("CallStaticVoidMethod");

  2503 #ifndef USDT2

  2504   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2505 #else /* USDT2 */

  2506   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2507                                          env, cls, (uintptr_t) methodID);

  2508 #endif /* USDT2 */

  2509   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2511   va_list args;

  2512   va_start(args, methodID);

  2513   JavaValue jvalue(T_VOID);

  2514   JNI_ArgumentPusherVaArg ap(methodID, args);

  2515   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2516   va_end(args);

  2517 JNI_END

  2520 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2521   JNIWrapper("CallStaticVoidMethodV");

  2522 #ifndef USDT2

  2523   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2524 #else /* USDT2 */

  2525   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2526                                           env, cls, (uintptr_t) methodID);

  2527 #endif /* USDT2 */

  2528   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2530   JavaValue jvalue(T_VOID);

  2531   JNI_ArgumentPusherVaArg ap(methodID, args);

  2532   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2533 JNI_END

  2536 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2537   JNIWrapper("CallStaticVoidMethodA");

  2538 #ifndef USDT2

  2539   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2540 #else /* USDT2 */

  2541   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2542                                           env, cls, (uintptr_t) methodID);

  2543 #endif /* USDT2 */

  2544   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2546   JavaValue jvalue(T_VOID);

  2547   JNI_ArgumentPusherArray ap(methodID, args);

  2548   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2549 JNI_END

  2552 //

  2553 // Accessing Fields

  2554 //

  2557 #ifndef USDT2

  2558 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2559 #else /* USDT2 */

  2560 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2561                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2562 #endif /* USDT2 */

  2564 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2565           const char *name, const char *sig))

  2566   JNIWrapper("GetFieldID");

  2567 #ifndef USDT2

  2568   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2569 #else /* USDT2 */

  2570   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2571                                env, clazz, (char *) name, (char *) sig);

  2572 #endif /* USDT2 */

  2573   jfieldID ret = 0;

  2574   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2576   // The class should have been loaded (we have an instance of the class

  2577   // passed in) so the field and signature should already be in the symbol

  2578   // table.  If they're not there, the field doesn't exist.

  2579   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2580   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2581   if (fieldname == NULL || signame == NULL) {

  2582     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2583   }

  2584   KlassHandle k(THREAD,

  2585                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2586   // Make sure class is initialized before handing id's out to fields

  2587   k()->initialize(CHECK_NULL);

  2589   fieldDescriptor fd;

  2590   if (!k()->oop_is_instance() ||

  2591       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2592     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2593   }

  2595   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2596   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2597   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2598   return ret;

  2599 JNI_END

  2602 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2603   JNIWrapper("GetObjectField");

  2604 #ifndef USDT2

  2605   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2606 #else /* USDT2 */

  2607   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2608                                    env, obj, (uintptr_t) fieldID);

  2609 #endif /* USDT2 */

  2610   oop o = JNIHandles::resolve_non_null(obj);

  2611   Klass* k = o->klass();

  2612   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2613   // Keep JVMTI addition small and only check enabled flag here.

  2614   // jni_GetField_probe() assumes that is okay to create handles.

  2615   if (JvmtiExport::should_post_field_access()) {

  2616     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2617   }

  2618   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2619 #if INCLUDE_ALL_GCS

  2620   // If G1 is enabled and we are accessing the value of the referent

  2621   // field in a reference object then we need to register a non-null

  2622   // referent with the SATB barrier.

  2623   if (UseG1GC) {

  2624     bool needs_barrier = false;

  2626     if (ret != NULL &&

  2627         offset == java_lang_ref_Reference::referent_offset &&

  2628         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2629       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2630       needs_barrier = true;

  2631     }

  2633     if (needs_barrier) {

  2634       oop referent = JNIHandles::resolve(ret);

  2635       G1SATBCardTableModRefBS::enqueue(referent);

  2636     }

  2637   }

  2638 #endif // INCLUDE_ALL_GCS

  2639 #ifndef USDT2

  2640   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2641 #else /* USDT2 */

  2642 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2643                                   ret);

  2644 #endif /* USDT2 */

  2645   return ret;

  2646 JNI_END

  2649 #ifndef USDT2

  2650 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2651 \

  2652   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2653 \

  2654 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2655   JNIWrapper("Get" XSTR(Result) "Field"); \

  2656 \

  2657   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2658   Return ret = 0;\

  2659   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2660 \

  2661   oop o = JNIHandles::resolve_non_null(obj); \

  2662   Klass* k = o->klass(); \

  2663   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2664   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2665   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2666   /* and creates a ResetNoHandleMark.                                   */ \

  2667   if (JvmtiExport::should_post_field_access()) { \

  2668     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2669   } \

  2670   ret = o->Fieldname##_field(offset); \

  2671   return ret; \

  2672 JNI_END

  2674 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2675 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2676 DEFINE_GETFIELD(jchar,    char,   Char)

  2677 DEFINE_GETFIELD(jshort,   short,  Short)

  2678 DEFINE_GETFIELD(jint,     int,    Int)

  2679 DEFINE_GETFIELD(jlong,    long,   Long)

  2680 DEFINE_GETFIELD(jfloat,   float,  Float)

  2681 DEFINE_GETFIELD(jdouble,  double, Double)

  2683 #else /* USDT2 */

  2685 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2686   , EntryProbe, ReturnProbe) \

  2687 \

  2688   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2689   , ReturnProbe); \

  2690 \

  2691 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2692   JNIWrapper("Get" XSTR(Result) "Field"); \

  2693 \

  2694   EntryProbe; \

  2695   Return ret = 0;\

  2696   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2697 \

  2698   oop o = JNIHandles::resolve_non_null(obj); \

  2699   Klass* k = o->klass(); \

  2700   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2701   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2702   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2703   /* and creates a ResetNoHandleMark.                                   */ \

  2704   if (JvmtiExport::should_post_field_access()) { \

  2705     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2706   } \

  2707   ret = o->Fieldname##_field(offset); \

  2708   return ret; \

  2709 JNI_END

  2711 DEFINE_GETFIELD(jboolean, bool,   Boolean

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

  2713                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2714 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2715                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2716                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2717 DEFINE_GETFIELD(jchar,    char,   Char

  2718                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2719                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2720 DEFINE_GETFIELD(jshort,   short,  Short

  2721                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2722                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2723 DEFINE_GETFIELD(jint,     int,    Int

  2724                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2725                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2726 DEFINE_GETFIELD(jlong,    long,   Long

  2727                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2728                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2729 // Float and double probes don't return value because dtrace doesn't currently support it

  2730 DEFINE_GETFIELD(jfloat,   float,  Float

  2731                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2732                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2733 DEFINE_GETFIELD(jdouble,  double, Double

  2734                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2735                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2736 #endif /* USDT2 */

  2738 address jni_GetBooleanField_addr() {

  2739   return (address)jni_GetBooleanField;

  2740 }

  2741 address jni_GetByteField_addr() {

  2742   return (address)jni_GetByteField;

  2743 }

  2744 address jni_GetCharField_addr() {

  2745   return (address)jni_GetCharField;

  2746 }

  2747 address jni_GetShortField_addr() {

  2748   return (address)jni_GetShortField;

  2749 }

  2750 address jni_GetIntField_addr() {

  2751   return (address)jni_GetIntField;

  2752 }

  2753 address jni_GetLongField_addr() {

  2754   return (address)jni_GetLongField;

  2755 }

  2756 address jni_GetFloatField_addr() {

  2757   return (address)jni_GetFloatField;

  2758 }

  2759 address jni_GetDoubleField_addr() {

  2760   return (address)jni_GetDoubleField;

  2761 }

  2763 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2764   JNIWrapper("SetObjectField");

  2765 #ifndef USDT2

  2766   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2767 #else /* USDT2 */

  2768   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2769                                    env, obj, (uintptr_t) fieldID, value);

  2770 #endif /* USDT2 */

  2771   oop o = JNIHandles::resolve_non_null(obj);

  2772   Klass* k = o->klass();

  2773   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2774   // Keep JVMTI addition small and only check enabled flag here.

  2775   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2776   // and creates a ResetNoHandleMark.

  2777   if (JvmtiExport::should_post_field_modification()) {

  2778     jvalue field_value;

  2779     field_value.l = value;

  2780     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2781   }

  2782   o->obj_field_put(offset, JNIHandles::resolve(value));

  2783 #ifndef USDT2

  2784   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2785 #else /* USDT2 */

  2786   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2787 );

  2788 #endif /* USDT2 */

  2789 JNI_END

  2791 #ifndef USDT2

  2792 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2793 \

  2794 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2795   JNIWrapper("Set" XSTR(Result) "Field"); \

  2796 \

  2797   FP_SELECT_##Result( \

  2798     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2799     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2800 \

  2801   oop o = JNIHandles::resolve_non_null(obj); \

  2802   Klass* k = o->klass(); \

  2803   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2804   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2805   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2806   /* and creates a ResetNoHandleMark.                                   */ \

  2807   if (JvmtiExport::should_post_field_modification()) { \

  2808     jvalue field_value; \

  2809     field_value.unionType = value; \

  2810     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2811   } \

  2812   o->Fieldname##_field_put(offset, value); \

  2813   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2814 JNI_END

  2816 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2817 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2818 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2819 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2820 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2821 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2822 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2823 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2825 #else /* USDT2 */

  2827 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2828                         , EntryProbe, ReturnProbe) \

  2829 \

  2830 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2831   JNIWrapper("Set" XSTR(Result) "Field"); \

  2832 \

  2833   EntryProbe; \

  2834 \

  2835   oop o = JNIHandles::resolve_non_null(obj); \

  2836   Klass* k = o->klass(); \

  2837   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2838   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2839   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2840   /* and creates a ResetNoHandleMark.                                   */ \

  2841   if (JvmtiExport::should_post_field_modification()) { \

  2842     jvalue field_value; \

  2843     field_value.unionType = value; \

  2844     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2845   } \

  2846   o->Fieldname##_field_put(offset, value); \

  2847   ReturnProbe; \

  2848 JNI_END

  2850 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2851                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2852                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2853 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2854                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2855                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2856 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2857                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2858                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2859 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2860                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2861                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2862 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

  2863                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2864                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2865 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

  2866                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2867                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2868 // Float and double probes don't return value because dtrace doesn't currently support it

  2869 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2870                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2871                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2872 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2873                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2874                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2875 #endif /* USDT2 */

  2877 #ifndef USDT2

  2878 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2879 #else /* USDT2 */

  2880 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2881                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2882 #endif /* USDT2 */

  2884 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2885   JNIWrapper("ToReflectedField");

  2886 #ifndef USDT2

  2887   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2888                 env, cls, fieldID, isStatic);

  2889 #else /* USDT2 */

  2890   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2891                 env, cls, (uintptr_t) fieldID, isStatic);

  2892 #endif /* USDT2 */

  2893   jobject ret = NULL;

  2894   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2896   fieldDescriptor fd;

  2897   bool found = false;

  2898   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2900   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2902   if (isStatic) {

  2903     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2904     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2905     assert(id->is_static_field_id(), "invalid static field id");

  2906     found = id->find_local_field(&fd);

  2907   } else {

  2908     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2909     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2910     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2911   }

  2912   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2913   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2914   ret = JNIHandles::make_local(env, reflected);

  2915   return ret;

  2916 JNI_END

  2919 //

  2920 // Accessing Static Fields

  2921 //

  2922 #ifndef USDT2

  2923 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2924 #else /* USDT2 */

  2925 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2926                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2927 #endif /* USDT2 */

  2929 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2930           const char *name, const char *sig))

  2931   JNIWrapper("GetStaticFieldID");

  2932 #ifndef USDT2

  2933   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2934 #else /* USDT2 */

  2935   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2936                                      env, clazz, (char *) name, (char *) sig);

  2937 #endif /* USDT2 */

  2938   jfieldID ret = NULL;

  2939   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2941   // The class should have been loaded (we have an instance of the class

  2942   // passed in) so the field and signature should already be in the symbol

  2943   // table.  If they're not there, the field doesn't exist.

  2944   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2945   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2946   if (fieldname == NULL || signame == NULL) {

  2947     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2948   }

  2949   KlassHandle k(THREAD,

  2950                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2951   // Make sure class is initialized before handing id's out to static fields

  2952   k()->initialize(CHECK_NULL);

  2954   fieldDescriptor fd;

  2955   if (!k()->oop_is_instance() ||

  2956       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2957     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2958   }

  2960   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2961   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2962   debug_only(id->set_is_static_field_id();)

  2964   debug_only(id->verify(fd.field_holder()));

  2966   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2967   return ret;

  2968 JNI_END

  2971 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2972   JNIWrapper("GetStaticObjectField");

  2973 #ifndef USDT2

  2974   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  2975 #else /* USDT2 */

  2976   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  2977                                          env, clazz, (uintptr_t) fieldID);

  2978 #endif /* USDT2 */

  2979 #if INCLUDE_JNI_CHECK

  2980   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  2981 #endif // INCLUDE_JNI_CHECK

  2982   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2983   assert(id->is_static_field_id(), "invalid static field id");

  2984   // Keep JVMTI addition small and only check enabled flag here.

  2985   // jni_GetField_probe() assumes that is okay to create handles.

  2986   if (JvmtiExport::should_post_field_access()) {

  2987     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  2988   }

  2989   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  2990 #ifndef USDT2

  2991   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  2992 #else /* USDT2 */

  2993   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  2994                                           ret);

  2995 #endif /* USDT2 */

  2996   return ret;

  2997 JNI_END

  2999 #ifndef USDT2

  3000 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  3001 \

  3002   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3003 \

  3004 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3005   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3006   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3007   Return ret = 0;\

  3008   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3009                      (const Return&)ret);\

  3010   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3011   assert(id->is_static_field_id(), "invalid static field id"); \

  3012   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3013   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3014   if (JvmtiExport::should_post_field_access()) { \

  3015     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3016   } \

  3017   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3018   return ret;\

  3019 JNI_END

  3021 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3022 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3023 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3024 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3025 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3026 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3027 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3028 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3030 #else /* USDT2 */

  3032 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3033                               , EntryProbe, ReturnProbe) \

  3034 \

  3035   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3036                           , ReturnProbe);                                          \

  3037 \

  3038 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3039   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3040   EntryProbe; \

  3041   Return ret = 0;\

  3042   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3043                      (const Return&)ret);\

  3044   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3045   assert(id->is_static_field_id(), "invalid static field id"); \

  3046   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3047   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3048   if (JvmtiExport::should_post_field_access()) { \

  3049     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3050   } \

  3051   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3052   return ret;\

  3053 JNI_END

  3055 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3056                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3057 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3058                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3059 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3060                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3061 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3062                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3063 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3064                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3065 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3066                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3067 // Float and double probes don't return value because dtrace doesn't currently support it

  3068 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3069                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3070 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3071                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3072 #endif /* USDT2 */

  3074 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3075   JNIWrapper("SetStaticObjectField");

  3076 #ifndef USDT2

  3077   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3078 #else /* USDT2 */

  3079  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3080                                         env, clazz, (uintptr_t) fieldID, value);

  3081 #endif /* USDT2 */

  3082   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3083   assert(id->is_static_field_id(), "invalid static field id");

  3084   // Keep JVMTI addition small and only check enabled flag here.

  3085   // jni_SetField_probe() assumes that is okay to create handles.

  3086   if (JvmtiExport::should_post_field_modification()) {

  3087     jvalue field_value;

  3088     field_value.l = value;

  3089     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3090   }

  3091   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3092 #ifndef USDT2

  3093   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3094 #else /* USDT2 */

  3095   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3096                                           );

  3097 #endif /* USDT2 */

  3098 JNI_END

  3101 #ifndef USDT2

  3102 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3103 \

  3104 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3105   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3106   FP_SELECT_##Result( \

  3107      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3108      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3109 \

  3110   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3111   assert(id->is_static_field_id(), "invalid static field id"); \

  3112   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3113   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3114   if (JvmtiExport::should_post_field_modification()) { \

  3115     jvalue field_value; \

  3116     field_value.unionType = value; \

  3117     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3118   } \

  3119   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3120   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3121 JNI_END

  3123 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3124 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3125 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3126 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3127 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3128 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3129 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3130 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3132 #else /* USDT2 */

  3134 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3135                               , EntryProbe, ReturnProbe) \

  3136 \

  3137 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3138   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3139   EntryProbe; \

  3140 \

  3141   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3142   assert(id->is_static_field_id(), "invalid static field id"); \

  3143   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3144   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3145   if (JvmtiExport::should_post_field_modification()) { \

  3146     jvalue field_value; \

  3147     field_value.unionType = value; \

  3148     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3149   } \

  3150   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3151   ReturnProbe;\

  3152 JNI_END

  3154 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3155                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3156                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3157 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3158                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3159                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3160 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3161                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3162                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3163 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3164                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3165                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3166 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3167                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3168                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3169 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3170                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3171                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3172 // Float and double probes don't return value because dtrace doesn't currently support it

  3173 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3174                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3175                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3176 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3177                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3178                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3179 #endif /* USDT2 */

  3181 //

  3182 // String Operations

  3183 //

  3185 // Unicode Interface

  3187 #ifndef USDT2

  3188 DT_RETURN_MARK_DECL(NewString, jstring);

  3189 #else /* USDT2 */

  3190 DT_RETURN_MARK_DECL(NewString, jstring

  3191                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3192 #endif /* USDT2 */

  3194 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3195   JNIWrapper("NewString");

  3196 #ifndef USDT2

  3197   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3198 #else /* USDT2 */

  3199  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3200                              env, (uint16_t *) unicodeChars, len);

  3201 #endif /* USDT2 */

  3202   jstring ret = NULL;

  3203   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3204   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3205   ret = (jstring) JNIHandles::make_local(env, string);

  3206   return ret;

  3207 JNI_END

  3210 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3211   JNIWrapper("GetStringLength");

  3212 #ifndef USDT2

  3213   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3214 #else /* USDT2 */

  3215   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3216                                     env, string);

  3217 #endif /* USDT2 */

  3218   jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string));

  3219 #ifndef USDT2

  3220   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3221 #else /* USDT2 */

  3222  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3223                                     ret);

  3224 #endif /* USDT2 */

  3225   return ret;

  3226 JNI_END

  3229 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3230   JNIEnv *env, jstring string, jboolean *isCopy))

  3231   JNIWrapper("GetStringChars");

  3232 #ifndef USDT2

  3233   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3234 #else /* USDT2 */

  3235  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3236                                   env, string, (uintptr_t *) isCopy);

  3237 #endif /* USDT2 */

  3238   //%note jni_5

  3239   if (isCopy != NULL) {

  3240     *isCopy = JNI_TRUE;

  3241   }

  3242   oop s = JNIHandles::resolve_non_null(string);

  3243   int s_len = java_lang_String::length(s);

  3244   typeArrayOop s_value = java_lang_String::value(s);

  3245   int s_offset = java_lang_String::offset(s);

  3246   jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3247   if (s_len > 0) {

  3248     memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3249   }

  3250   buf[s_len] = 0;

  3251 #ifndef USDT2

  3252   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3253 #else /* USDT2 */

  3254   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3255                                     buf);

  3256 #endif /* USDT2 */

  3257   return buf;

  3258 JNI_END

  3261 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3262   JNIWrapper("ReleaseStringChars");

  3263 #ifndef USDT2

  3264   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3265 #else /* USDT2 */

  3266   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3267                                        env, str, (uint16_t *) chars);

  3268 #endif /* USDT2 */

  3269   //%note jni_6

  3270   if (chars != NULL) {

  3271     // Since String objects are supposed to be immutable, don't copy any

  3272     // new data back.  A bad user will have to go after the char array.

  3273     FreeHeap((void*) chars);

  3274   }

  3275 #ifndef USDT2

  3276   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3277 #else /* USDT2 */

  3278   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3279 );

  3280 #endif /* USDT2 */

  3281 JNI_END

  3284 // UTF Interface

  3286 #ifndef USDT2

  3287 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3288 #else /* USDT2 */

  3289 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3290                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3291 #endif /* USDT2 */

  3293 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3294   JNIWrapper("NewStringUTF");

  3295 #ifndef USDT2

  3296   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3297 #else /* USDT2 */

  3298   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3299                                  env, (char *) bytes);

  3300 #endif /* USDT2 */

  3301   jstring ret;

  3302   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3304   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3305   ret = (jstring) JNIHandles::make_local(env, result);

  3306   return ret;

  3307 JNI_END

  3310 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3311   JNIWrapper("GetStringUTFLength");

  3312 #ifndef USDT2

  3313   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3314 #else /* USDT2 */

  3315  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3316                                       env, string);

  3317 #endif /* USDT2 */

  3318   jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string));

  3319 #ifndef USDT2

  3320   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3321 #else /* USDT2 */

  3322   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3323                                         ret);

  3324 #endif /* USDT2 */

  3325   return ret;

  3326 JNI_END

  3329 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3330   JNIWrapper("GetStringUTFChars");

  3331 #ifndef USDT2

  3332   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3333 #else /* USDT2 */

  3334  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3335                                      env, string, (uintptr_t *) isCopy);

  3336 #endif /* USDT2 */

  3337   oop java_string = JNIHandles::resolve_non_null(string);

  3338   size_t length = java_lang_String::utf8_length(java_string);

  3339   char* result = AllocateHeap(length + 1, mtInternal);

  3340   java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3341   if (isCopy != NULL) *isCopy = JNI_TRUE;

  3342 #ifndef USDT2

  3343   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3344 #else /* USDT2 */

  3345  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3346                                       result);

  3347 #endif /* USDT2 */

  3348   return result;

  3349 JNI_END

  3352 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3353   JNIWrapper("ReleaseStringUTFChars");

  3354 #ifndef USDT2

  3355   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3356 #else /* USDT2 */

  3357  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3358                                          env, str, (char *) chars);

  3359 #endif /* USDT2 */

  3360   if (chars != NULL) {

  3361     FreeHeap((char*) chars);

  3362   }

  3363 #ifndef USDT2

  3364   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3365 #else /* USDT2 */

  3366 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3367 );

  3368 #endif /* USDT2 */

  3369 JNI_END

  3372 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3373   JNIWrapper("GetArrayLength");

  3374 #ifndef USDT2

  3375   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3376 #else /* USDT2 */

  3377  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3378                                   env, array);

  3379 #endif /* USDT2 */

  3380   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3381   assert(a->is_array(), "must be array");

  3382   jsize ret = a->length();

  3383 #ifndef USDT2

  3384   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3385 #else /* USDT2 */

  3386  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3387                                    ret);

  3388 #endif /* USDT2 */

  3389   return ret;

  3390 JNI_END

  3393 //

  3394 // Object Array Operations

  3395 //

  3397 #ifndef USDT2

  3398 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3399 #else /* USDT2 */

  3400 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3401                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3402 #endif /* USDT2 */

  3404 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3405   JNIWrapper("NewObjectArray");

  3406 #ifndef USDT2

  3407   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3408 #else /* USDT2 */

  3409  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3410                                   env, length, elementClass, initialElement);

  3411 #endif /* USDT2 */

  3412   jobjectArray ret = NULL;

  3413   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3414   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3415   Klass* ako = ek()->array_klass(CHECK_NULL);

  3416   KlassHandle ak = KlassHandle(THREAD, ako);

  3417   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3418   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3419   oop initial_value = JNIHandles::resolve(initialElement);

  3420   if (initial_value != NULL) {  // array already initialized with NULL

  3421     for (int index = 0; index < length; index++) {

  3422       result->obj_at_put(index, initial_value);

  3423     }

  3424   }

  3425   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3426   return ret;

  3427 JNI_END

  3429 #ifndef USDT2

  3430 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3431 #else /* USDT2 */

  3432 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3433                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3434 #endif /* USDT2 */

  3436 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3437   JNIWrapper("GetObjectArrayElement");

  3438 #ifndef USDT2

  3439   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3440 #else /* USDT2 */

  3441  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3442                                          env, array, index);

  3443 #endif /* USDT2 */

  3444   jobject ret = NULL;

  3445   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3446   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3447   if (a->is_within_bounds(index)) {

  3448     ret = JNIHandles::make_local(env, a->obj_at(index));

  3449     return ret;

  3450   } else {

  3451     char buf[jintAsStringSize];

  3452     sprintf(buf, "%d", index);

  3453     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3454   }

  3455 JNI_END

  3457 #ifndef USDT2

  3458 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3459 #else /* USDT2 */

  3460 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3461                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3462 #endif /* USDT2 */

  3464 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3465   JNIWrapper("SetObjectArrayElement");

  3466 #ifndef USDT2

  3467   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3468 #else /* USDT2 */

  3469  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3470                                          env, array, index, value);

  3471 #endif /* USDT2 */

  3472   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3474   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3475   oop v = JNIHandles::resolve(value);

  3476   if (a->is_within_bounds(index)) {

  3477     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3478       a->obj_at_put(index, v);

  3479     } else {

  3480       THROW(vmSymbols::java_lang_ArrayStoreException());

  3481     }

  3482   } else {

  3483     char buf[jintAsStringSize];

  3484     sprintf(buf, "%d", index);

  3485     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3486   }

  3487 JNI_END

  3490 #ifndef USDT2

  3491 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3492 \

  3493   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3494 \

  3495 JNI_ENTRY(Return, \

  3496           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3497   JNIWrapper("New" XSTR(Result) "Array"); \

  3498   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3499   Return ret = NULL;\

  3500   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3501 \

  3502   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3503   ret = (Return) JNIHandles::make_local(env, obj); \

  3504   return ret;\

  3505 JNI_END

  3507 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3508 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3509 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3510 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3511 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3512 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3513 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3514 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3516 #else /* USDT2 */

  3518 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3519                               ,EntryProbe,ReturnProbe)  \

  3520 \

  3521   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3522                       , ReturnProbe); \

  3523 \

  3524 JNI_ENTRY(Return, \

  3525           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3526   JNIWrapper("New" XSTR(Result) "Array"); \

  3527   EntryProbe; \

  3528   Return ret = NULL;\

  3529   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3530 \

  3531   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3532   ret = (Return) JNIHandles::make_local(env, obj); \

  3533   return ret;\

  3534 JNI_END

  3536 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3537                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3538                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3539 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3540                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3541                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3542 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3543                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3544                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3545 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3546                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3547                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3548 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3549                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3550                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3551 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3552                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3553                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3554 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3555                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3556                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3557 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3558                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3559                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3560 #endif /* USDT2 */

  3562 // Return an address which will fault if the caller writes to it.

  3564 static char* get_bad_address() {

  3565   static char* bad_address = NULL;

  3566   if (bad_address == NULL) {

  3567     size_t size = os::vm_allocation_granularity();

  3568     bad_address = os::reserve_memory(size);

  3569     if (bad_address != NULL) {

  3570       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3571                          /*is_committed*/false);

  3572     }

  3573   }

  3574   return bad_address;

  3575 }

  3578 #ifndef USDT2

  3579 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3580 \

  3581 JNI_QUICK_ENTRY(ElementType*, \

  3582           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3583   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3584   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3585   /* allocate an chunk of memory in c land */ \

  3586   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3587   ElementType* result; \

  3588   int len = a->length(); \

  3589   if (len == 0) { \

  3590     /* Empty array: legal but useless, can't return NULL. \

  3591      * Return a pointer to something useless. \

  3592      * Avoid asserts in typeArrayOop. */ \

  3593     result = (ElementType*)get_bad_address(); \

  3594   } else { \

  3595     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3596     /* copy the array to the c chunk */ \

  3597     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3598   } \

  3599   if (isCopy) *isCopy = JNI_TRUE; \

  3600   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3601   return result; \

  3602 JNI_END

  3604 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3605 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3606 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3607 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3608 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3609 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3610 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3611 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3613 #else /* USDT2 */

  3615 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3616                                       , EntryProbe, ReturnProbe) \

  3617 \

  3618 JNI_QUICK_ENTRY(ElementType*, \

  3619           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3620   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3621   EntryProbe; \

  3622   /* allocate an chunk of memory in c land */ \

  3623   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3624   ElementType* result; \

  3625   int len = a->length(); \

  3626   if (len == 0) { \

  3627     /* Empty array: legal but useless, can't return NULL. \

  3628      * Return a pointer to something useless. \

  3629      * Avoid asserts in typeArrayOop. */ \

  3630     result = (ElementType*)get_bad_address(); \

  3631   } else { \

  3632     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3633     /* copy the array to the c chunk */ \

  3634     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3635   } \

  3636   if (isCopy) *isCopy = JNI_TRUE; \

  3637   ReturnProbe; \

  3638   return result; \

  3639 JNI_END

  3641 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3642                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3643                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3644 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3645                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3646                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3647 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3648                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3649                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3650 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3651                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3652                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3653 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3654                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3655                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3656 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3657                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3658                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3659 // Float and double probes don't return value because dtrace doesn't currently support it

  3660 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3661                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3662                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3663 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3664                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3665                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3666 #endif /* USDT2 */

  3668 #ifndef USDT2

  3669 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3670 \

  3671 JNI_QUICK_ENTRY(void, \

  3672           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3673                                              ElementType *buf, jint mode)) \

  3674   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3675   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3676   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3677   int len = a->length(); \

  3678   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3679     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3680       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3681     } \

  3682     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3683       FreeHeap(buf); \

  3684     } \

  3685   } \

  3686   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3687 JNI_END

  3689 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3690 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3691 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3692 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3693 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3694 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3695 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3696 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3698 #else /* USDT2 */

  3700 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3701                                           , EntryProbe, ReturnProbe);\

  3702 \

  3703 JNI_QUICK_ENTRY(void, \

  3704           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3705                                              ElementType *buf, jint mode)) \

  3706   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3707   EntryProbe; \

  3708   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3709   int len = a->length(); \

  3710   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3711     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3712       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3713     } \

  3714     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3715       FreeHeap(buf); \

  3716     } \

  3717   } \

  3718   ReturnProbe; \

  3719 JNI_END

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3722                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3723                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3724 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3725                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3726                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3727 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3728                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3729                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3730 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3731                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3732                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3733 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3734                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3735                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3736 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3737                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3738                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3739 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3740                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3741                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3742 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3743                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3744                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3745 #endif /* USDT2 */

  3747 #ifndef USDT2

  3748 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3749   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3750 \

  3751 JNI_ENTRY(void, \

  3752 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3753              jsize len, ElementType *buf)) \

  3754   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3755   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3756   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3757   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3758   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3759     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3760   } else { \

  3761     if (len > 0) { \

  3762       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3763       memcpy((u_char*) buf, \

  3764              (u_char*) src->Tag##_at_addr(start), \

  3765              len << sc);                          \

  3766     } \

  3767   } \

  3768 JNI_END

  3770 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3771 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3772 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3773 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3774 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3775 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3776 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3777 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3779 #else /* USDT2 */

  3781 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3782                                     , EntryProbe, ReturnProbe); \

  3783   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3784                            , ReturnProbe); \

  3785 \

  3786 JNI_ENTRY(void, \

  3787 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3788              jsize len, ElementType *buf)) \

  3789   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3790   EntryProbe; \

  3791   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3792   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3793   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3794     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3795   } else { \

  3796     if (len > 0) { \

  3797       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3798       memcpy((u_char*) buf, \

  3799              (u_char*) src->Tag##_at_addr(start), \

  3800              len << sc);                          \

  3801     } \

  3802   } \

  3803 JNI_END

  3805 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3806                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3807                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3808 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3809                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3810                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3811 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3812                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3813                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3814 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3815                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3816                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3817 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3818                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3819                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3820 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3821                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3822                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3823 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3824                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3825                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3826 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3827                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3828                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3829 #endif /* USDT2 */

  3831 #ifndef USDT2

  3832 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3833   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3834 \

  3835 JNI_ENTRY(void, \

  3836 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3837              jsize len, const ElementType *buf)) \

  3838   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3839   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3840   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3841   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3842   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3843     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3844   } else { \

  3845     if (len > 0) { \

  3846       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3847       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3848              (u_char*) buf, \

  3849              len << sc);    \

  3850     } \

  3851   } \

  3852 JNI_END

  3854 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3855 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3856 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3857 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3858 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3859 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3860 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3861 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3863 #else /* USDT2 */

  3865 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3866                                     , EntryProbe, ReturnProbe); \

  3867   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3868                            ,ReturnProbe);           \

  3869 \

  3870 JNI_ENTRY(void, \

  3871 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3872              jsize len, const ElementType *buf)) \

  3873   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3874   EntryProbe; \

  3875   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3876   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3877   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3878     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3879   } else { \

  3880     if (len > 0) { \

  3881       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3882       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3883              (u_char*) buf, \

  3884              len << sc);    \

  3885     } \

  3886   } \

  3887 JNI_END

  3889 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3890                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3891                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3892 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3893                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3894                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3895 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3896                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3897                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3898 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3899                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3900                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3901 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3902                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3903                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3904 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3905                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3906                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3907 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3908                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3909                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3910 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3911                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3912                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3913 #endif /* USDT2 */

  3916 //

  3917 // Interception of natives

  3918 //

  3920 // The RegisterNatives call being attempted tried to register with a method that

  3921 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3922 // to see if the native method is now wrapped with the prefixes.  See the

  3923 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3924 static Method* find_prefixed_native(KlassHandle k,

  3925                                       Symbol* name, Symbol* signature, TRAPS) {

  3926 #if INCLUDE_JVMTI

  3927   ResourceMark rm(THREAD);

  3928   Method* method;

  3929   int name_len = name->utf8_length();

  3930   char* name_str = name->as_utf8();

  3931   int prefix_count;

  3932   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3933   for (int i = 0; i < prefix_count; i++) {

  3934     char* prefix = prefixes[i];

  3935     int prefix_len = (int)strlen(prefix);

  3937     // try adding this prefix to the method name and see if it matches another method name

  3938     int trial_len = name_len + prefix_len;

  3939     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3940     strcpy(trial_name_str, prefix);

  3941     strcat(trial_name_str, name_str);

  3942     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3943     if (trial_name == NULL) {

  3944       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3945     }

  3946     method = k()->lookup_method(trial_name, signature);

  3947     if (method == NULL) {

  3948       continue; // signature doesn't match, try the next prefix

  3949     }

  3950     if (method->is_native()) {

  3951       method->set_is_prefixed_native();

  3952       return method; // wahoo, we found a prefixed version of the method, return it

  3953     }

  3954     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3955     name_len = trial_len;

  3956     name_str = trial_name_str;

  3957   }

  3958 #endif // INCLUDE_JVMTI

  3959   return NULL; // not found

  3960 }

  3962 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3963   Method* method = k()->lookup_method(name, signature);

  3964   if (method == NULL) {

  3965     ResourceMark rm;

  3966     stringStream st;

  3967     st.print("Method %s name or signature does not match",

  3968              Method::name_and_sig_as_C_string(k(), name, signature));

  3969     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3970   }

  3971   if (!method->is_native()) {

  3972     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  3973     method = find_prefixed_native(k, name, signature, THREAD);

  3974     if (method == NULL) {

  3975       ResourceMark rm;

  3976       stringStream st;

  3977       st.print("Method %s is not declared as native",

  3978                Method::name_and_sig_as_C_string(k(), name, signature));

  3979       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3980     }

  3981   }

  3983   if (entry != NULL) {

  3984     method->set_native_function(entry,

  3985       Method::native_bind_event_is_interesting);

  3986   } else {

  3987     method->clear_native_function();

  3988   }

  3989   if (PrintJNIResolving) {

  3990     ResourceMark rm(THREAD);

  3991     tty->print_cr("[Registering JNI native method %s.%s]",

  3992       method->method_holder()->external_name(),

  3993       method->name()->as_C_string());

  3994   }

  3995   return true;

  3996 }

  3998 #ifndef USDT2

  3999 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4000 #else /* USDT2 */

  4001 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4002                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4003 #endif /* USDT2 */

  4005 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4006                                     const JNINativeMethod *methods,

  4007                                     jint nMethods))

  4008   JNIWrapper("RegisterNatives");

  4009 #ifndef USDT2

  4010   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4011 #else /* USDT2 */

  4012   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4013                                     env, clazz, (void *) methods, nMethods);

  4014 #endif /* USDT2 */

  4015   jint ret = 0;

  4016   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4018   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4020   for (int index = 0; index < nMethods; index++) {

  4021     const char* meth_name = methods[index].name;

  4022     const char* meth_sig = methods[index].signature;

  4023     int meth_name_len = (int)strlen(meth_name);

  4025     // The class should have been loaded (we have an instance of the class

  4026     // passed in) so the method and signature should already be in the symbol

  4027     // table.  If they're not there, the method doesn't exist.

  4028     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4029     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4031     if (name == NULL || signature == NULL) {

  4032       ResourceMark rm;

  4033       stringStream st;

  4034       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4035       // Must return negative value on failure

  4036       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4037     }

  4039     bool res = register_native(h_k, name, signature,

  4040                                (address) methods[index].fnPtr, THREAD);

  4041     if (!res) {

  4042       ret = -1;

  4043       break;

  4044     }

  4045   }

  4046   return ret;

  4047 JNI_END

  4050 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4051   JNIWrapper("UnregisterNatives");

  4052 #ifndef USDT2

  4053   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4054 #else /* USDT2 */

  4055  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4056                                      env, clazz);

  4057 #endif /* USDT2 */

  4058   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4059   //%note jni_2

  4060   if (k->oop_is_instance()) {

  4061     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4062       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4063       if (m->is_native()) {

  4064         m->clear_native_function();

  4065         m->set_signature_handler(NULL);

  4066       }

  4067     }

  4068   }

  4069 #ifndef USDT2

  4070   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4071 #else /* USDT2 */

  4072  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4073                                       0);

  4074 #endif /* USDT2 */

  4075   return 0;

  4076 JNI_END

  4078 //

  4079 // Monitor functions

  4080 //

  4082 #ifndef USDT2

  4083 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4084 #else /* USDT2 */

  4085 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4086                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4087 #endif /* USDT2 */

  4089 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4090 #ifndef USDT2

  4091   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4092 #else /* USDT2 */

  4093  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4094                                 env, jobj);

  4095 #endif /* USDT2 */

  4096   jint ret = JNI_ERR;

  4097   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4099   // If the object is null, we can't do anything with it

  4100   if (jobj == NULL) {

  4101     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4102   }

  4104   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4105   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4106   ret = JNI_OK;

  4107   return ret;

  4108 JNI_END

  4110 #ifndef USDT2

  4111 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4112 #else /* USDT2 */

  4113 DT_RETURN_MARK_DECL(MonitorExit, jint

  4114                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4115 #endif /* USDT2 */

  4117 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4118 #ifndef USDT2

  4119   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4120 #else /* USDT2 */

  4121  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4122                                env, jobj);

  4123 #endif /* USDT2 */

  4124   jint ret = JNI_ERR;

  4125   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4127   // Don't do anything with a null object

  4128   if (jobj == NULL) {

  4129     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4130   }

  4132   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4133   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4135   ret = JNI_OK;

  4136   return ret;

  4137 JNI_END

  4139 //

  4140 // Extensions

  4141 //

  4143 #ifndef USDT2

  4144 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4145 #else /* USDT2 */

  4146 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4147                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4148 #endif /* USDT2 */

  4150 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4151   JNIWrapper("GetStringRegion");

  4152 #ifndef USDT2

  4153   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4154 #else /* USDT2 */

  4155  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4156                                    env, string, start, len, buf);

  4157 #endif /* USDT2 */

  4158   DT_VOID_RETURN_MARK(GetStringRegion);

  4159   oop s = JNIHandles::resolve_non_null(string);

  4160   int s_len = java_lang_String::length(s);

  4161   if (start < 0 || len < 0 || start + len > s_len) {

  4162     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4163   } else {

  4164     if (len > 0) {

  4165       int s_offset = java_lang_String::offset(s);

  4166       typeArrayOop s_value = java_lang_String::value(s);

  4167       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4168     }

  4169   }

  4170 JNI_END

  4172 #ifndef USDT2

  4173 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4174 #else /* USDT2 */

  4175 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4176                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4177 #endif /* USDT2 */

  4179 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4180   JNIWrapper("GetStringUTFRegion");

  4181 #ifndef USDT2

  4182   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4183 #else /* USDT2 */

  4184  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4185                                       env, string, start, len, buf);

  4186 #endif /* USDT2 */

  4187   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4188   oop s = JNIHandles::resolve_non_null(string);

  4189   int s_len = java_lang_String::length(s);

  4190   if (start < 0 || len < 0 || start + len > s_len) {

  4191     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4192   } else {

  4193     //%note jni_7

  4194     if (len > 0) {

  4195       ResourceMark rm(THREAD);

  4196       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4197       int utf_len = (int)strlen(utf_region);

  4198       memcpy(buf, utf_region, utf_len);

  4199       buf[utf_len] = 0;

  4200     } else {

  4201       // JDK null-terminates the buffer even in len is zero

  4202       if (buf != NULL) {

  4203         buf[0] = 0;

  4204       }

  4205     }

  4206   }

  4207 JNI_END

  4210 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4211   JNIWrapper("GetPrimitiveArrayCritical");

  4212 #ifndef USDT2

  4213   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4214 #else /* USDT2 */

  4215  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4216                                              env, array, (uintptr_t *) isCopy);

  4217 #endif /* USDT2 */

  4218   GC_locker::lock_critical(thread);

  4219   if (isCopy != NULL) {

  4220     *isCopy = JNI_FALSE;

  4221   }

  4222   oop a = JNIHandles::resolve_non_null(array);

  4223   assert(a->is_array(), "just checking");

  4224   BasicType type;

  4225   if (a->is_objArray()) {

  4226     type = T_OBJECT;

  4227   } else {

  4228     type = TypeArrayKlass::cast(a->klass())->element_type();

  4229   }

  4230   void* ret = arrayOop(a)->base(type);

  4231 #ifndef USDT2

  4232   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4233 #else /* USDT2 */

  4234  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4235                                               ret);

  4236 #endif /* USDT2 */

  4237   return ret;

  4238 JNI_END

  4241 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4242   JNIWrapper("ReleasePrimitiveArrayCritical");

  4243 #ifndef USDT2

  4244   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4245 #else /* USDT2 */

  4246   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4247                                                   env, array, carray, mode);

  4248 #endif /* USDT2 */

  4249   // The array, carray and mode arguments are ignored

  4250   GC_locker::unlock_critical(thread);

  4251 #ifndef USDT2

  4252   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4253 #else /* USDT2 */

  4254 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4255 );

  4256 #endif /* USDT2 */

  4257 JNI_END

  4260 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4261   JNIWrapper("GetStringCritical");

  4262 #ifndef USDT2

  4263   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4264 #else /* USDT2 */

  4265   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4266                                       env, string, (uintptr_t *) isCopy);

  4267 #endif /* USDT2 */

  4268   GC_locker::lock_critical(thread);

  4269   if (isCopy != NULL) {

  4270     *isCopy = JNI_FALSE;

  4271   }

  4272   oop s = JNIHandles::resolve_non_null(string);

  4273   int s_len = java_lang_String::length(s);

  4274   typeArrayOop s_value = java_lang_String::value(s);

  4275   int s_offset = java_lang_String::offset(s);

  4276   const jchar* ret;

  4277   if (s_len > 0) {

  4278     ret = s_value->char_at_addr(s_offset);

  4279   } else {

  4280     ret = (jchar*) s_value->base(T_CHAR);

  4281   }

  4282 #ifndef USDT2

  4283   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4284 #else /* USDT2 */

  4285  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4286                                       (uint16_t *) ret);

  4287 #endif /* USDT2 */

  4288   return ret;

  4289 JNI_END

  4292 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4293   JNIWrapper("ReleaseStringCritical");

  4294 #ifndef USDT2

  4295   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4296 #else /* USDT2 */

  4297   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4298                                           env, str, (uint16_t *) chars);

  4299 #endif /* USDT2 */

  4300   // The str and chars arguments are ignored

  4301   GC_locker::unlock_critical(thread);

  4302 #ifndef USDT2

  4303   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4304 #else /* USDT2 */

  4305 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4306 );

  4307 #endif /* USDT2 */

  4308 JNI_END

  4311 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4312   JNIWrapper("jni_NewWeakGlobalRef");

  4313 #ifndef USDT2

  4314   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4315 #else /* USDT2 */

  4316  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4317                                     env, ref);

  4318 #endif /* USDT2 */

  4319   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4320   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4321 #ifndef USDT2

  4322   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4323 #else /* USDT2 */

  4324  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4325                                      ret);

  4326 #endif /* USDT2 */

  4327   return ret;

  4328 JNI_END

  4330 // Must be JNI_ENTRY (with HandleMark)

  4331 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4332   JNIWrapper("jni_DeleteWeakGlobalRef");

  4333 #ifndef USDT2

  4334   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4335 #else /* USDT2 */

  4336   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4337                                         env, ref);

  4338 #endif /* USDT2 */

  4339   JNIHandles::destroy_weak_global(ref);

  4340 #ifndef USDT2

  4341   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4342 #else /* USDT2 */

  4343   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4344                                          );

  4345 #endif /* USDT2 */

  4346 JNI_END

  4349 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4350   JNIWrapper("jni_ExceptionCheck");

  4351 #ifndef USDT2

  4352   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4353 #else /* USDT2 */

  4354  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4355                                   env);

  4356 #endif /* USDT2 */

  4357   jni_check_async_exceptions(thread);

  4358   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4359 #ifndef USDT2

  4360   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4361 #else /* USDT2 */

  4362  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4363                                    ret);

  4364 #endif /* USDT2 */

  4365   return ret;

  4366 JNI_END

  4369 // Initialization state for three routines below relating to

  4370 // java.nio.DirectBuffers

  4371 static          jint directBufferSupportInitializeStarted = 0;

  4372 static volatile jint directBufferSupportInitializeEnded   = 0;

  4373 static volatile jint directBufferSupportInitializeFailed  = 0;

  4374 static jclass    bufferClass                 = NULL;

  4375 static jclass    directBufferClass           = NULL;

  4376 static jclass    directByteBufferClass       = NULL;

  4377 static jmethodID directByteBufferConstructor = NULL;

  4378 static jfieldID  directBufferAddressField    = NULL;

  4379 static jfieldID  bufferCapacityField         = NULL;

  4381 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4382   Handle loader;            // null (bootstrap) loader

  4383   Handle protection_domain; // null protection domain

  4385   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4386   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4388   if (TraceClassResolution && result != NULL) {

  4389     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4390   }

  4391   return result;

  4392 }

  4394 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4395 // circumvent any security checks that would be done by jni_FindClass.

  4396 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4397 {

  4398   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4399   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4400   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4401   return true;

  4402 }

  4403 JNI_END

  4406 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4407   if (directBufferSupportInitializeFailed) {

  4408     return false;

  4409   }

  4411   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4412     if (!lookupDirectBufferClasses(env)) {

  4413       directBufferSupportInitializeFailed = 1;

  4414       return false;

  4415     }

  4417     // Make global references for these

  4418     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4419     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4420     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4422     // Get needed field and method IDs

  4423     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4424     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4425     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4427     if ((directByteBufferConstructor == NULL) ||

  4428         (directBufferAddressField    == NULL) ||

  4429         (bufferCapacityField         == NULL)) {

  4430       directBufferSupportInitializeFailed = 1;

  4431       return false;

  4432     }

  4434     directBufferSupportInitializeEnded = 1;

  4435   } else {

  4436     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4437       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4438       // os::sleep which requires the VM state transition. On other platforms, it

  4439       // is not necessary. The following call to change the VM state is purposely

  4440       // put inside the loop to avoid potential deadlock when multiple threads

  4441       // try to call this method. See 6791815 for more details.

  4442       ThreadInVMfromNative tivn(thread);

  4443       os::yield_all();

  4444     }

  4445   }

  4447   return !directBufferSupportInitializeFailed;

  4448 }

  4450 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4451 {

  4452   // thread_from_jni_environment() will block if VM is gone.

  4453   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4455   JNIWrapper("jni_NewDirectByteBuffer");

  4456 #ifndef USDT2

  4457   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4458 #else /* USDT2 */

  4459  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4460                                        env, address, capacity);

  4461 #endif /* USDT2 */

  4463   if (!directBufferSupportInitializeEnded) {

  4464     if (!initializeDirectBufferSupport(env, thread)) {

  4465 #ifndef USDT2

  4466       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4467 #else /* USDT2 */

  4468       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4469                                              NULL);

  4470 #endif /* USDT2 */

  4471       return NULL;

  4472     }

  4473   }

  4475   // Being paranoid about accidental sign extension on address

  4476   jlong addr = (jlong) ((uintptr_t) address);

  4477   // NOTE that package-private DirectByteBuffer constructor currently

  4478   // takes int capacity

  4479   jint  cap  = (jint)  capacity;

  4480   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4481 #ifndef USDT2

  4482   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4483 #else /* USDT2 */

  4484   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4485                                          ret);

  4486 #endif /* USDT2 */

  4487   return ret;

  4488 }

  4490 #ifndef USDT2

  4491 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4492 #else /* USDT2 */

  4493 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4494                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4495 #endif /* USDT2 */

  4497 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4498 {

  4499   // thread_from_jni_environment() will block if VM is gone.

  4500   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4502   JNIWrapper("jni_GetDirectBufferAddress");

  4503 #ifndef USDT2

  4504   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4505 #else /* USDT2 */

  4506   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4507                                            env, buf);

  4508 #endif /* USDT2 */

  4509   void* ret = NULL;

  4510   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4512   if (!directBufferSupportInitializeEnded) {

  4513     if (!initializeDirectBufferSupport(env, thread)) {

  4514       return 0;

  4515     }

  4516   }

  4518   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4519     return 0;

  4520   }

  4522   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4523   return ret;

  4524 }

  4526 #ifndef USDT2

  4527 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4528 #else /* USDT2 */

  4529 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4530                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4531 #endif /* USDT2 */

  4533 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4534 {

  4535   // thread_from_jni_environment() will block if VM is gone.

  4536   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4538   JNIWrapper("jni_GetDirectBufferCapacity");

  4539 #ifndef USDT2

  4540   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4541 #else /* USDT2 */

  4542   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4543                                             env, buf);

  4544 #endif /* USDT2 */

  4545   jlong ret = -1;

  4546   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4548   if (!directBufferSupportInitializeEnded) {

  4549     if (!initializeDirectBufferSupport(env, thread)) {

  4550       ret = 0;

  4551       return ret;

  4552     }

  4553   }

  4555   if (buf == NULL) {

  4556     return -1;

  4557   }

  4559   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4560     return -1;

  4561   }

  4563   // NOTE that capacity is currently an int in the implementation

  4564   ret = env->GetIntField(buf, bufferCapacityField);

  4565   return ret;

  4566 }

  4569 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4570   JNIWrapper("GetVersion");

  4571 #ifndef USDT2

  4572   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4573 #else /* USDT2 */

  4574   HOTSPOT_JNI_GETVERSION_ENTRY(

  4575                                env);

  4576 #endif /* USDT2 */

  4577 #ifndef USDT2

  4578   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4579 #else /* USDT2 */

  4580   HOTSPOT_JNI_GETVERSION_RETURN(

  4581                                 CurrentVersion);

  4582 #endif /* USDT2 */

  4583   return CurrentVersion;

  4584 JNI_END

  4586 extern struct JavaVM_ main_vm;

  4588 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4589   JNIWrapper("jni_GetJavaVM");

  4590 #ifndef USDT2

  4591   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4592 #else /* USDT2 */

  4593   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4594                               env, (void **) vm);

  4595 #endif /* USDT2 */

  4596   *vm  = (JavaVM *)(&main_vm);

  4597 #ifndef USDT2

  4598   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4599 #else /* USDT2 */

  4600   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4601                                JNI_OK);

  4602 #endif /* USDT2 */

  4603   return JNI_OK;

  4604 JNI_END

  4606 // Structure containing all jni functions

  4607 struct JNINativeInterface_ jni_NativeInterface = {

  4608     NULL,

  4609     NULL,

  4610     NULL,

  4612     NULL,

  4614     jni_GetVersion,

  4616     jni_DefineClass,

  4617     jni_FindClass,

  4619     jni_FromReflectedMethod,

  4620     jni_FromReflectedField,

  4622     jni_ToReflectedMethod,

  4624     jni_GetSuperclass,

  4625     jni_IsAssignableFrom,

  4627     jni_ToReflectedField,

  4629     jni_Throw,

  4630     jni_ThrowNew,

  4631     jni_ExceptionOccurred,

  4632     jni_ExceptionDescribe,

  4633     jni_ExceptionClear,

  4634     jni_FatalError,

  4636     jni_PushLocalFrame,

  4637     jni_PopLocalFrame,

  4639     jni_NewGlobalRef,

  4640     jni_DeleteGlobalRef,

  4641     jni_DeleteLocalRef,

  4642     jni_IsSameObject,

  4644     jni_NewLocalRef,

  4645     jni_EnsureLocalCapacity,

  4647     jni_AllocObject,

  4648     jni_NewObject,

  4649     jni_NewObjectV,

  4650     jni_NewObjectA,

  4652     jni_GetObjectClass,

  4653     jni_IsInstanceOf,

  4655     jni_GetMethodID,

  4657     jni_CallObjectMethod,

  4658     jni_CallObjectMethodV,

  4659     jni_CallObjectMethodA,

  4660     jni_CallBooleanMethod,

  4661     jni_CallBooleanMethodV,

  4662     jni_CallBooleanMethodA,

  4663     jni_CallByteMethod,

  4664     jni_CallByteMethodV,

  4665     jni_CallByteMethodA,

  4666     jni_CallCharMethod,

  4667     jni_CallCharMethodV,

  4668     jni_CallCharMethodA,

  4669     jni_CallShortMethod,

  4670     jni_CallShortMethodV,

  4671     jni_CallShortMethodA,

  4672     jni_CallIntMethod,

  4673     jni_CallIntMethodV,

  4674     jni_CallIntMethodA,

  4675     jni_CallLongMethod,

  4676     jni_CallLongMethodV,

  4677     jni_CallLongMethodA,

  4678     jni_CallFloatMethod,

  4679     jni_CallFloatMethodV,

  4680     jni_CallFloatMethodA,

  4681     jni_CallDoubleMethod,

  4682     jni_CallDoubleMethodV,

  4683     jni_CallDoubleMethodA,

  4684     jni_CallVoidMethod,

  4685     jni_CallVoidMethodV,

  4686     jni_CallVoidMethodA,

  4688     jni_CallNonvirtualObjectMethod,

  4689     jni_CallNonvirtualObjectMethodV,

  4690     jni_CallNonvirtualObjectMethodA,

  4691     jni_CallNonvirtualBooleanMethod,

  4692     jni_CallNonvirtualBooleanMethodV,

  4693     jni_CallNonvirtualBooleanMethodA,

  4694     jni_CallNonvirtualByteMethod,

  4695     jni_CallNonvirtualByteMethodV,

  4696     jni_CallNonvirtualByteMethodA,

  4697     jni_CallNonvirtualCharMethod,

  4698     jni_CallNonvirtualCharMethodV,

  4699     jni_CallNonvirtualCharMethodA,

  4700     jni_CallNonvirtualShortMethod,

  4701     jni_CallNonvirtualShortMethodV,

  4702     jni_CallNonvirtualShortMethodA,

  4703     jni_CallNonvirtualIntMethod,

  4704     jni_CallNonvirtualIntMethodV,

  4705     jni_CallNonvirtualIntMethodA,

  4706     jni_CallNonvirtualLongMethod,

  4707     jni_CallNonvirtualLongMethodV,

  4708     jni_CallNonvirtualLongMethodA,

  4709     jni_CallNonvirtualFloatMethod,

  4710     jni_CallNonvirtualFloatMethodV,

  4711     jni_CallNonvirtualFloatMethodA,

  4712     jni_CallNonvirtualDoubleMethod,

  4713     jni_CallNonvirtualDoubleMethodV,

  4714     jni_CallNonvirtualDoubleMethodA,

  4715     jni_CallNonvirtualVoidMethod,

  4716     jni_CallNonvirtualVoidMethodV,

  4717     jni_CallNonvirtualVoidMethodA,

  4719     jni_GetFieldID,

  4721     jni_GetObjectField,

  4722     jni_GetBooleanField,

  4723     jni_GetByteField,

  4724     jni_GetCharField,

  4725     jni_GetShortField,

  4726     jni_GetIntField,

  4727     jni_GetLongField,

  4728     jni_GetFloatField,

  4729     jni_GetDoubleField,

  4731     jni_SetObjectField,

  4732     jni_SetBooleanField,

  4733     jni_SetByteField,

  4734     jni_SetCharField,

  4735     jni_SetShortField,

  4736     jni_SetIntField,

  4737     jni_SetLongField,

  4738     jni_SetFloatField,

  4739     jni_SetDoubleField,

  4741     jni_GetStaticMethodID,

  4743     jni_CallStaticObjectMethod,

  4744     jni_CallStaticObjectMethodV,

  4745     jni_CallStaticObjectMethodA,

  4746     jni_CallStaticBooleanMethod,

  4747     jni_CallStaticBooleanMethodV,

  4748     jni_CallStaticBooleanMethodA,

  4749     jni_CallStaticByteMethod,

  4750     jni_CallStaticByteMethodV,

  4751     jni_CallStaticByteMethodA,

  4752     jni_CallStaticCharMethod,

  4753     jni_CallStaticCharMethodV,

  4754     jni_CallStaticCharMethodA,

  4755     jni_CallStaticShortMethod,

  4756     jni_CallStaticShortMethodV,

  4757     jni_CallStaticShortMethodA,

  4758     jni_CallStaticIntMethod,

  4759     jni_CallStaticIntMethodV,

  4760     jni_CallStaticIntMethodA,

  4761     jni_CallStaticLongMethod,

  4762     jni_CallStaticLongMethodV,

  4763     jni_CallStaticLongMethodA,

  4764     jni_CallStaticFloatMethod,

  4765     jni_CallStaticFloatMethodV,

  4766     jni_CallStaticFloatMethodA,

  4767     jni_CallStaticDoubleMethod,

  4768     jni_CallStaticDoubleMethodV,

  4769     jni_CallStaticDoubleMethodA,

  4770     jni_CallStaticVoidMethod,

  4771     jni_CallStaticVoidMethodV,

  4772     jni_CallStaticVoidMethodA,

  4774     jni_GetStaticFieldID,

  4776     jni_GetStaticObjectField,

  4777     jni_GetStaticBooleanField,

  4778     jni_GetStaticByteField,

  4779     jni_GetStaticCharField,

  4780     jni_GetStaticShortField,

  4781     jni_GetStaticIntField,

  4782     jni_GetStaticLongField,

  4783     jni_GetStaticFloatField,

  4784     jni_GetStaticDoubleField,

  4786     jni_SetStaticObjectField,

  4787     jni_SetStaticBooleanField,

  4788     jni_SetStaticByteField,

  4789     jni_SetStaticCharField,

  4790     jni_SetStaticShortField,

  4791     jni_SetStaticIntField,

  4792     jni_SetStaticLongField,

  4793     jni_SetStaticFloatField,

  4794     jni_SetStaticDoubleField,

  4796     jni_NewString,

  4797     jni_GetStringLength,

  4798     jni_GetStringChars,

  4799     jni_ReleaseStringChars,

  4801     jni_NewStringUTF,

  4802     jni_GetStringUTFLength,

  4803     jni_GetStringUTFChars,

  4804     jni_ReleaseStringUTFChars,

  4806     jni_GetArrayLength,

  4808     jni_NewObjectArray,

  4809     jni_GetObjectArrayElement,

  4810     jni_SetObjectArrayElement,

  4812     jni_NewBooleanArray,

  4813     jni_NewByteArray,

  4814     jni_NewCharArray,

  4815     jni_NewShortArray,

  4816     jni_NewIntArray,

  4817     jni_NewLongArray,

  4818     jni_NewFloatArray,

  4819     jni_NewDoubleArray,

  4821     jni_GetBooleanArrayElements,

  4822     jni_GetByteArrayElements,

  4823     jni_GetCharArrayElements,

  4824     jni_GetShortArrayElements,

  4825     jni_GetIntArrayElements,

  4826     jni_GetLongArrayElements,

  4827     jni_GetFloatArrayElements,

  4828     jni_GetDoubleArrayElements,

  4830     jni_ReleaseBooleanArrayElements,

  4831     jni_ReleaseByteArrayElements,

  4832     jni_ReleaseCharArrayElements,

  4833     jni_ReleaseShortArrayElements,

  4834     jni_ReleaseIntArrayElements,

  4835     jni_ReleaseLongArrayElements,

  4836     jni_ReleaseFloatArrayElements,

  4837     jni_ReleaseDoubleArrayElements,

  4839     jni_GetBooleanArrayRegion,

  4840     jni_GetByteArrayRegion,

  4841     jni_GetCharArrayRegion,

  4842     jni_GetShortArrayRegion,

  4843     jni_GetIntArrayRegion,

  4844     jni_GetLongArrayRegion,

  4845     jni_GetFloatArrayRegion,

  4846     jni_GetDoubleArrayRegion,

  4848     jni_SetBooleanArrayRegion,

  4849     jni_SetByteArrayRegion,

  4850     jni_SetCharArrayRegion,

  4851     jni_SetShortArrayRegion,

  4852     jni_SetIntArrayRegion,

  4853     jni_SetLongArrayRegion,

  4854     jni_SetFloatArrayRegion,

  4855     jni_SetDoubleArrayRegion,

  4857     jni_RegisterNatives,

  4858     jni_UnregisterNatives,

  4860     jni_MonitorEnter,

  4861     jni_MonitorExit,

  4863     jni_GetJavaVM,

  4865     jni_GetStringRegion,

  4866     jni_GetStringUTFRegion,

  4868     jni_GetPrimitiveArrayCritical,

  4869     jni_ReleasePrimitiveArrayCritical,

  4871     jni_GetStringCritical,

  4872     jni_ReleaseStringCritical,

  4874     jni_NewWeakGlobalRef,

  4875     jni_DeleteWeakGlobalRef,

  4877     jni_ExceptionCheck,

  4879     jni_NewDirectByteBuffer,

  4880     jni_GetDirectBufferAddress,

  4881     jni_GetDirectBufferCapacity,

  4883     // New 1_6 features

  4885     jni_GetObjectRefType

  4886 };

  4889 // For jvmti use to modify jni function table.

  4890 // Java threads in native contiues to run until it is transitioned

  4891 // to VM at safepoint. Before the transition or before it is blocked

  4892 // for safepoint it may access jni function table. VM could crash if

  4893 // any java thread access the jni function table in the middle of memcpy.

  4894 // To avoid this each function pointers are copied automically.

  4895 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4896   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4897   intptr_t *a = (intptr_t *) jni_functions();

  4898   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4899   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4900     Atomic::store_ptr(*b++, a++);

  4901   }

  4902 }

  4904 void quicken_jni_functions() {

  4905   // Replace Get<Primitive>Field with fast versions

  4906   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4907       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4908 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4909       // windows x86 currently needs SEH wrapper and the gain of the fast

  4910       // versions currently isn't certain for server vm on uniprocessor.

  4911       && os::is_MP()

  4912 #endif

  4913   ) {

  4914     address func;

  4915     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4916     if (func != (address)-1) {

  4917       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4918     }

  4919     func = JNI_FastGetField::generate_fast_get_byte_field();

  4920     if (func != (address)-1) {

  4921       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4922     }

  4923     func = JNI_FastGetField::generate_fast_get_char_field();

  4924     if (func != (address)-1) {

  4925       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4926     }

  4927     func = JNI_FastGetField::generate_fast_get_short_field();

  4928     if (func != (address)-1) {

  4929       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4930     }

  4931     func = JNI_FastGetField::generate_fast_get_int_field();

  4932     if (func != (address)-1) {

  4933       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4934     }

  4935     func = JNI_FastGetField::generate_fast_get_long_field();

  4936     if (func != (address)-1) {

  4937       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4938     }

  4939     func = JNI_FastGetField::generate_fast_get_float_field();

  4940     if (func != (address)-1) {

  4941       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4942     }

  4943     func = JNI_FastGetField::generate_fast_get_double_field();

  4944     if (func != (address)-1) {

  4945       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4946     }

  4947   }

  4948 }

  4950 // Returns the function structure

  4951 struct JNINativeInterface_* jni_functions() {

  4952 #if INCLUDE_JNI_CHECK

  4953   if (CheckJNICalls) return jni_functions_check();

  4954 #endif // INCLUDE_JNI_CHECK

  4955   return &jni_NativeInterface;

  4956 }

  4958 // Returns the function structure

  4959 struct JNINativeInterface_* jni_functions_nocheck() {

  4960   return &jni_NativeInterface;

  4961 }

  4964 // Invocation API

  4967 // Forward declaration

  4968 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  4970 // Global invocation API vars

  4971 volatile jint vm_created = 0;

  4972 // Indicate whether it is safe to recreate VM

  4973 volatile jint safe_to_recreate_vm = 1;

  4974 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  4977 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  4978 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  4980 #ifndef USDT2

  4981 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  4982 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  4983 #else /* USDT2 */

  4984 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  4985                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  4986 #endif /* USDT2 */

  4988 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  4989 #ifndef USDT2

  4990   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  4991 #else /* USDT2 */

  4992   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  4993                                              args_);

  4994 #endif /* USDT2 */

  4995   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  4996   jint ret = JNI_ERR;

  4997   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  4999   if (Threads::is_supported_jni_version(args->version)) {

  5000     ret = JNI_OK;

  5001   }

  5002   // 1.1 style no longer supported in hotspot.

  5003   // According the JNI spec, we should update args->version on return.

  5004   // We also use the structure to communicate with launcher about default

  5005   // stack size.

  5006   if (args->version == JNI_VERSION_1_1) {

  5007     args->version = JNI_VERSION_1_2;

  5008     // javaStackSize is int in arguments structure

  5009     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5010     args->javaStackSize = (jint)(ThreadStackSize * K);

  5011   }

  5012   return ret;

  5013 }

  5015 #ifndef PRODUCT

  5017 #include "gc_interface/collectedHeap.hpp"

  5018 #include "utilities/quickSort.hpp"

  5019 #if INCLUDE_VM_STRUCTS

  5020 #include "runtime/vmStructs.hpp"

  5021 #endif

  5023 #define run_unit_test(unit_test_function_call)              \

  5024   tty->print_cr("Running test: " #unit_test_function_call); \

  5025   unit_test_function_call

  5027 void execute_internal_vm_tests() {

  5028   if (ExecuteInternalVMTests) {

  5029     tty->print_cr("Running internal VM tests");

  5030     run_unit_test(GlobalDefinitions::test_globals());

  5031     run_unit_test(arrayOopDesc::test_max_array_length());

  5032     run_unit_test(CollectedHeap::test_is_in());

  5033     run_unit_test(QuickSort::test_quick_sort());

  5034     run_unit_test(AltHashing::test_alt_hash());

  5035 #if INCLUDE_VM_STRUCTS

  5036     run_unit_test(VMStructs::test());

  5037 #endif

  5038     tty->print_cr("All internal VM tests passed");

  5039   }

  5040 }

  5042 #undef run_unit_test

  5044 #endif

  5046 #ifndef USDT2

  5047 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5048 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5049 #else /* USDT2 */

  5050 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5051                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5052 #endif /* USDT2 */

  5054 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5055 #ifndef USDT2

  5056   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5057 #else /* USDT2 */

  5058   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5059                                  (void **) vm, penv, args);

  5060 #endif /* USDT2 */

  5062   jint result = JNI_ERR;

  5063   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5065   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5066   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5067   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5068   // on all architectures.  So we check it works before relying on it.

  5069 #if defined(ZERO) && defined(ASSERT)

  5070   {

  5071     jint a = 0xcafebabe;

  5072     jint b = Atomic::xchg(0xdeadbeef, &a);

  5073     void *c = &a;

  5074     void *d = Atomic::xchg_ptr(&b, &c);

  5075     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5076     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5077   }

  5078 #endif // ZERO && ASSERT

  5080   // At the moment it's only possible to have one Java VM,

  5081   // since some of the runtime state is in global variables.

  5083   // We cannot use our mutex locks here, since they only work on

  5084   // Threads. We do an atomic compare and exchange to ensure only

  5085   // one thread can call this method at a time

  5087   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5088   // the add/dec implementations are dependent on whether we are running

  5089   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5090   // function used to determine this will always return false. Atomic::xchg

  5091   // does not have this problem.

  5092   if (Atomic::xchg(1, &vm_created) == 1) {

  5093     return JNI_ERR;   // already created, or create attempt in progress

  5094   }

  5095   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5096     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5097   }

  5099   assert(vm_created == 1, "vm_created is true during the creation");

  5101   /**

  5102    * Certain errors during initialization are recoverable and do not

  5103    * prevent this method from being called again at a later time

  5104    * (perhaps with different arguments).  However, at a certain

  5105    * point during initialization if an error occurs we cannot allow

  5106    * this function to be called again (or it will crash).  In those

  5107    * situations, the 'canTryAgain' flag is set to false, which atomically

  5108    * sets safe_to_recreate_vm to 1, such that any new call to

  5109    * JNI_CreateJavaVM will immediately fail using the above logic.

  5110    */

  5111   bool can_try_again = true;

  5113   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5114   if (result == JNI_OK) {

  5115     JavaThread *thread = JavaThread::current();

  5116     /* thread is thread_in_vm here */

  5117     *vm = (JavaVM *)(&main_vm);

  5118     *(JNIEnv**)penv = thread->jni_environment();

  5120     // Tracks the time application was running before GC

  5121     RuntimeService::record_application_start();

  5123     // Notify JVMTI

  5124     if (JvmtiExport::should_post_thread_life()) {

  5125        JvmtiExport::post_thread_start(thread);

  5126     }

  5128     EVENT_BEGIN(TraceEventThreadStart, event);

  5129     EVENT_COMMIT(event,

  5130         EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5132     // Check if we should compile all classes on bootclasspath

  5133     NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();)

  5134     NOT_PRODUCT(if (ReplayCompiles) ciReplay::replay(thread);)

  5135     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5136     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5137   } else {

  5138     if (can_try_again) {

  5139       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5140       safe_to_recreate_vm = 1;

  5141     }

  5143     // Creation failed. We must reset vm_created

  5144     *vm = 0;

  5145     *(JNIEnv**)penv = 0;

  5146     // reset vm_created last to avoid race condition. Use OrderAccess to

  5147     // control both compiler and architectural-based reordering.

  5148     OrderAccess::release_store(&vm_created, 0);

  5149   }

  5151   NOT_PRODUCT(test_error_handler(ErrorHandlerTest));

  5152   NOT_PRODUCT(execute_internal_vm_tests());

  5153   return result;

  5154 }

  5156 #ifndef USDT2

  5157 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5158   JavaVM**, jsize, jsize*);

  5159 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5160 #endif /* !USDT2 */

  5162 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5163   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5164   // JNIWrapper("GetCreatedJavaVMs");

  5165 #ifndef USDT2

  5166   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5167     vm_buf, bufLen, numVMs);

  5168 #else /* USDT2 */

  5169   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5170                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5171 #endif /* USDT2 */

  5172   if (vm_created) {

  5173     if (numVMs != NULL) *numVMs = 1;

  5174     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5175   } else {

  5176     if (numVMs != NULL) *numVMs = 0;

  5177   }

  5178 #ifndef USDT2

  5179   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5180 #else /* USDT2 */

  5181   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5182                                     JNI_OK);

  5183 #endif /* USDT2 */

  5184   return JNI_OK;

  5185 }

  5187 extern "C" {

  5189 #ifndef USDT2

  5190 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5191 #else /* USDT2 */

  5192 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5193                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5194 #endif /* USDT2 */

  5196 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5197 #ifndef USDT2

  5198   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5199 #else /* USDT2 */

  5200   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5201                                   vm);

  5202 #endif /* USDT2 */

  5203   jint res = JNI_ERR;

  5204   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5206   if (!vm_created) {

  5207     res = JNI_ERR;

  5208     return res;

  5209   }

  5211   JNIWrapper("DestroyJavaVM");

  5212   JNIEnv *env;

  5213   JavaVMAttachArgs destroyargs;

  5214   destroyargs.version = CurrentVersion;

  5215   destroyargs.name = (char *)"DestroyJavaVM";

  5216   destroyargs.group = NULL;

  5217   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5218   if (res != JNI_OK) {

  5219     return res;

  5220   }

  5222   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5223   JavaThread* thread = JavaThread::current();

  5224   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5225   if (Threads::destroy_vm()) {

  5226     // Should not change thread state, VM is gone

  5227     vm_created = false;

  5228     res = JNI_OK;

  5229     return res;

  5230   } else {

  5231     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5232     res = JNI_ERR;

  5233     return res;

  5234   }

  5235 }

  5238 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5239   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5241   // Check below commented out from JDK1.2fcs as well

  5242   /*

  5243   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5244     return JNI_EVERSION;

  5245   }

  5246   */

  5248   Thread* t = ThreadLocalStorage::get_thread_slow();

  5249   if (t != NULL) {

  5250     // If the thread has been attached this operation is a no-op

  5251     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5252     return JNI_OK;

  5253   }

  5255   // Create a thread and mark it as attaching so it will be skipped by the

  5256   // ThreadsListEnumerator - see CR 6404306

  5257   JavaThread* thread = new JavaThread(true);

  5259   // Set correct safepoint info. The thread is going to call into Java when

  5260   // initializing the Java level thread object. Hence, the correct state must

  5261   // be set in order for the Safepoint code to deal with it correctly.

  5262   thread->set_thread_state(_thread_in_vm);

  5263   // Must do this before initialize_thread_local_storage

  5264   thread->record_stack_base_and_size();

  5266   thread->initialize_thread_local_storage();

  5268   if (!os::create_attached_thread(thread)) {

  5269     delete thread;

  5270     return JNI_ERR;

  5271   }

  5272   // Enable stack overflow checks

  5273   thread->create_stack_guard_pages();

  5275   thread->initialize_tlab();

  5277   thread->cache_global_variables();

  5279   // Crucial that we do not have a safepoint check for this thread, since it has

  5280   // not been added to the Thread list yet.

  5281   { Threads_lock->lock_without_safepoint_check();

  5282     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5283     // avoid this thread trying to do a GC before it is added to the thread-list

  5284     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5285     Threads::add(thread, daemon);

  5286     Threads_lock->unlock();

  5287   }

  5288   // Create thread group and name info from attach arguments

  5289   oop group = NULL;

  5290   char* thread_name = NULL;

  5291   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5292     group = JNIHandles::resolve(args->group);

  5293     thread_name = args->name; // may be NULL

  5294   }

  5295   if (group == NULL) group = Universe::main_thread_group();

  5297   // Create Java level thread object and attach it to this thread

  5298   bool attach_failed = false;

  5299   {

  5300     EXCEPTION_MARK;

  5301     HandleMark hm(THREAD);

  5302     Handle thread_group(THREAD, group);

  5303     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5304     if (HAS_PENDING_EXCEPTION) {

  5305       CLEAR_PENDING_EXCEPTION;

  5306       // cleanup outside the handle mark.

  5307       attach_failed = true;

  5308     }

  5309   }

  5311   if (attach_failed) {

  5312     // Added missing cleanup

  5313     thread->cleanup_failed_attach_current_thread();

  5314     return JNI_ERR;

  5315   }

  5317   // mark the thread as no longer attaching

  5318   // this uses a fence to push the change through so we don't have

  5319   // to regrab the threads_lock

  5320   thread->set_done_attaching_via_jni();

  5322   // Set java thread status.

  5323   java_lang_Thread::set_thread_status(thread->threadObj(),

  5324               java_lang_Thread::RUNNABLE);

  5326   // Notify the debugger

  5327   if (JvmtiExport::should_post_thread_life()) {

  5328     JvmtiExport::post_thread_start(thread);

  5329   }

  5331   EVENT_BEGIN(TraceEventThreadStart, event);

  5332   EVENT_COMMIT(event,

  5333       EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5335   *(JNIEnv**)penv = thread->jni_environment();

  5337   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5338   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5339   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5340   // needed.

  5342   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5344   // Perform any platform dependent FPU setup

  5345   os::setup_fpu();

  5347   return JNI_OK;

  5348 }

  5351 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5352 #ifndef USDT2

  5353   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5354 #else /* USDT2 */

  5355   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5356                                         vm, penv, _args);

  5357 #endif /* USDT2 */

  5358   if (!vm_created) {

  5359 #ifndef USDT2

  5360     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5361 #else /* USDT2 */

  5362   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5363                                          (uint32_t) JNI_ERR);

  5364 #endif /* USDT2 */

  5365     return JNI_ERR;

  5366   }

  5368   JNIWrapper("AttachCurrentThread");

  5369   jint ret = attach_current_thread(vm, penv, _args, false);

  5370 #ifndef USDT2

  5371   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5372 #else /* USDT2 */

  5373   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5374                                          ret);

  5375 #endif /* USDT2 */

  5376   return ret;

  5377 }

  5380 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5381 #ifndef USDT2

  5382   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5383 #else /* USDT2 */

  5384   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5385                                         vm);

  5386 #endif /* USDT2 */

  5387   VM_Exit::block_if_vm_exited();

  5389   JNIWrapper("DetachCurrentThread");

  5391   // If the thread has been deattacted the operations is a no-op

  5392   if (ThreadLocalStorage::thread() == NULL) {

  5393 #ifndef USDT2

  5394     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5395 #else /* USDT2 */

  5396   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5397                                          JNI_OK);

  5398 #endif /* USDT2 */

  5399     return JNI_OK;

  5400   }

  5402   JavaThread* thread = JavaThread::current();

  5403   if (thread->has_last_Java_frame()) {

  5404 #ifndef USDT2

  5405     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5406 #else /* USDT2 */

  5407   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5408                                          (uint32_t) JNI_ERR);

  5409 #endif /* USDT2 */

  5410     // Can't detach a thread that's running java, that can't work.

  5411     return JNI_ERR;

  5412   }

  5414   // Safepoint support. Have to do call-back to safepoint code, if in the

  5415   // middel of a safepoint operation

  5416   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5418   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5419   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5420   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5421   // of the guards is visible in jni_AttachCurrentThread above,

  5422   // the removal of the guards is buried below in JavaThread::exit()

  5423   // here. The abstraction should be more symmetrically either exposed

  5424   // or hidden (e.g. it could probably be hidden in the same

  5425   // (platform-dependent) methods where we do alternate stack

  5426   // maintenance work?)

  5427   thread->exit(false, JavaThread::jni_detach);

  5428   delete thread;

  5430 #ifndef USDT2

  5431   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5432 #else /* USDT2 */

  5433   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5434                                          JNI_OK);

  5435 #endif /* USDT2 */

  5436   return JNI_OK;

  5437 }

  5439 #ifndef USDT2

  5440 DT_RETURN_MARK_DECL(GetEnv, jint);

  5441 #else /* USDT2 */

  5442 DT_RETURN_MARK_DECL(GetEnv, jint

  5443                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5444 #endif /* USDT2 */

  5446 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5447 #ifndef USDT2

  5448   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5449 #else /* USDT2 */

  5450   HOTSPOT_JNI_GETENV_ENTRY(

  5451                            vm, penv, version);

  5452 #endif /* USDT2 */

  5453   jint ret = JNI_ERR;

  5454   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5456   if (!vm_created) {

  5457     *penv = NULL;

  5458     ret = JNI_EDETACHED;

  5459     return ret;

  5460   }

  5462   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5463     return ret;

  5464   }

  5466 #ifndef JVMPI_VERSION_1

  5467 // need these in order to be polite about older agents

  5468 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5469 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5470 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5471 #endif // !JVMPI_VERSION_1

  5473   Thread* thread = ThreadLocalStorage::thread();

  5474   if (thread != NULL && thread->is_Java_thread()) {

  5475     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5476       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5477       ret = JNI_OK;

  5478       return ret;

  5480     } else if (version == JVMPI_VERSION_1 ||

  5481                version == JVMPI_VERSION_1_1 ||

  5482                version == JVMPI_VERSION_1_2) {

  5483       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5484       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5485       ret = JNI_EVERSION;

  5486       return ret;

  5487     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5488       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5489       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5490       ret = JNI_EVERSION;

  5491       return ret;

  5492     } else {

  5493       *penv = NULL;

  5494       ret = JNI_EVERSION;

  5495       return ret;

  5496     }

  5497   } else {

  5498     *penv = NULL;

  5499     ret = JNI_EDETACHED;

  5500     return ret;

  5501   }

  5502 }

  5505 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5506 #ifndef USDT2

  5507   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5508 #else /* USDT2 */

  5509   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5510                                                 vm, penv, _args);

  5511 #endif /* USDT2 */

  5512   if (!vm_created) {

  5513 #ifndef USDT2

  5514     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5515 #else /* USDT2 */

  5516   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5517                                                  (uint32_t) JNI_ERR);

  5518 #endif /* USDT2 */

  5519     return JNI_ERR;

  5520   }

  5522   JNIWrapper("AttachCurrentThreadAsDaemon");

  5523   jint ret = attach_current_thread(vm, penv, _args, true);

  5524 #ifndef USDT2

  5525   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5526 #else /* USDT2 */

  5527   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5528                                                  ret);

  5529 #endif /* USDT2 */

  5530   return ret;

  5531 }

  5534 } // End extern "C"

  5536 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5537     NULL,

  5538     NULL,

  5539     NULL,

  5541     jni_DestroyJavaVM,

  5542     jni_AttachCurrentThread,

  5543     jni_DetachCurrentThread,

  5544     jni_GetEnv,

  5545     jni_AttachCurrentThreadAsDaemon

  5546 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@f0bc60565ba8

src/share/vm/prims/jni.cpp