jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@db9981fd3124

8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright (c) 2012 Red Hat, Inc.

     4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     5  *

     6  * This code is free software; you can redistribute it and/or modify it

     7  * under the terms of the GNU General Public License version 2 only, as

     8  * published by the Free Software Foundation.

     9  *

    10  * This code is distributed in the hope that it will be useful, but WITHOUT

    11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    13  * version 2 for more details (a copy is included in the LICENSE file that

    14  * accompanied this code).

    15  *

    16  * You should have received a copy of the GNU General Public License version

    17  * 2 along with this work; if not, write to the Free Software Foundation,

    18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    19  *

    20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    21  * or visit www.oracle.com if you need additional information or have any

    22  * questions.

    23  *

    24  */

    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_6;

    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 };

  1292 static methodHandle jni_resolve_interface_call(Handle recv, methodHandle method, TRAPS) {

  1293   assert(!method.is_null() , "method should not be null");

  1295   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1296   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1297   KlassHandle spec_klass (THREAD, method->method_holder());

  1298   Symbol*  name  = method->name();

  1299   Symbol*  signature  = method->signature();

  1300   CallInfo info;

  1301   LinkResolver::resolve_interface_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1302   return info.selected_method();

  1303 }

  1305 static methodHandle jni_resolve_virtual_call(Handle recv, methodHandle method, TRAPS) {

  1306   assert(!method.is_null() , "method should not be null");

  1308   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1309   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1310   KlassHandle spec_klass (THREAD, method->method_holder());

  1311   Symbol*  name  = method->name();

  1312   Symbol*  signature  = method->signature();

  1313   CallInfo info;

  1314   LinkResolver::resolve_virtual_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1315   return info.selected_method();

  1316 }

  1320 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1321   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1323   // Create object to hold arguments for the JavaCall, and associate it with

  1324   // the jni parser

  1325   ResourceMark rm(THREAD);

  1326   int number_of_parameters = method->size_of_parameters();

  1327   JavaCallArguments java_args(number_of_parameters);

  1328   args->set_java_argument_object(&java_args);

  1330   assert(method->is_static(), "method should be static");

  1332   // Fill out JavaCallArguments object

  1333   args->iterate( Fingerprinter(method).fingerprint() );

  1334   // Initialize result type

  1335   result->set_type(args->get_ret_type());

  1337   // Invoke the method. Result is returned as oop.

  1338   JavaCalls::call(result, method, &java_args, CHECK);

  1340   // Convert result

  1341   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1342     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1343   }

  1344 }

  1347 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1348   oop recv = JNIHandles::resolve(receiver);

  1349   if (recv == NULL) {

  1350     THROW(vmSymbols::java_lang_NullPointerException());

  1351   }

  1352   Handle h_recv(THREAD, recv);

  1354   int number_of_parameters;

  1355   Method* selected_method;

  1356   {

  1357     Method* m = Method::resolve_jmethod_id(method_id);

  1358     number_of_parameters = m->size_of_parameters();

  1359     Klass* holder = m->method_holder();

  1360     if (!(holder)->is_interface()) {

  1361       // non-interface call -- for that little speed boost, don't handlize

  1362       debug_only(No_Safepoint_Verifier nosafepoint;)

  1363       if (call_type == JNI_VIRTUAL) {

  1364         // jni_GetMethodID makes sure class is linked and initialized

  1365         // so m should have a valid vtable index.

  1366         int vtbl_index = m->vtable_index();

  1367         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1368           Klass* k = h_recv->klass();

  1369           // k might be an arrayKlassOop but all vtables start at

  1370           // the same place. The cast is to avoid virtual call and assertion.

  1371           InstanceKlass *ik = (InstanceKlass*)k;

  1372           selected_method = ik->method_at_vtable(vtbl_index);

  1373         } else {

  1374           // final method

  1375           selected_method = m;

  1376         }

  1377       } else {

  1378         // JNI_NONVIRTUAL call

  1379         selected_method = m;

  1380       }

  1381     } else {

  1382       // interface call

  1383       KlassHandle h_holder(THREAD, holder);

  1385       int itbl_index = m->cached_itable_index();

  1386       if (itbl_index == -1) {

  1387         itbl_index = klassItable::compute_itable_index(m);

  1388         m->set_cached_itable_index(itbl_index);

  1389         // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again

  1390       }

  1391       Klass* k = h_recv->klass();

  1392       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1393     }

  1394   }

  1396   methodHandle method(THREAD, selected_method);

  1398   // Create object to hold arguments for the JavaCall, and associate it with

  1399   // the jni parser

  1400   ResourceMark rm(THREAD);

  1401   JavaCallArguments java_args(number_of_parameters);

  1402   args->set_java_argument_object(&java_args);

  1404   // handle arguments

  1405   assert(!method->is_static(), "method should not be static");

  1406   args->push_receiver(h_recv); // Push jobject handle

  1408   // Fill out JavaCallArguments object

  1409   args->iterate( Fingerprinter(method).fingerprint() );

  1410   // Initialize result type

  1411   result->set_type(args->get_ret_type());

  1413   // Invoke the method. Result is returned as oop.

  1414   JavaCalls::call(result, method, &java_args, CHECK);

  1416   // Convert result

  1417   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1418     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1419   }

  1420 }

  1423 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1424   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1425   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1426   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1427   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1428   return ih;

  1429 }

  1431 #ifndef USDT2

  1432 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1433 #else /* USDT2 */

  1434 DT_RETURN_MARK_DECL(AllocObject, jobject

  1435                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1436 #endif /* USDT2 */

  1438 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1439   JNIWrapper("AllocObject");

  1441 #ifndef USDT2

  1442   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1443 #else /* USDT2 */

  1444   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1445                                 env, clazz);

  1446 #endif /* USDT2 */

  1447   jobject ret = NULL;

  1448   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1450   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1451   ret = JNIHandles::make_local(env, i);

  1452   return ret;

  1453 JNI_END

  1455 #ifndef USDT2

  1456 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1457 #else /* USDT2 */

  1458 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1459                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1460 #endif /* USDT2 */

  1462 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1463   JNIWrapper("NewObjectA");

  1464 #ifndef USDT2

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

  1466 #else /* USDT2 */

  1467   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1468                                env, clazz, (uintptr_t) methodID);

  1469 #endif /* USDT2 */

  1470   jobject obj = NULL;

  1471   DT_RETURN_MARK(NewObjectA, 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_ArgumentPusherArray 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(NewObjectV, jobject);

  1483 #else /* USDT2 */

  1484 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1485                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1486 #endif /* USDT2 */

  1488 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1489   JNIWrapper("NewObjectV");

  1490 #ifndef USDT2

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

  1492 #else /* USDT2 */

  1493   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1494                                env, clazz, (uintptr_t) methodID);

  1495 #endif /* USDT2 */

  1496   jobject obj = NULL;

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

  1499   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1501   JavaValue jvalue(T_VOID);

  1502   JNI_ArgumentPusherVaArg ap(methodID, args);

  1503   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1504   return obj;

  1505 JNI_END

  1507 #ifndef USDT2

  1508 DT_RETURN_MARK_DECL(NewObject, jobject);

  1509 #else /* USDT2 */

  1510 DT_RETURN_MARK_DECL(NewObject, jobject

  1511                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1512 #endif /* USDT2 */

  1514 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1515   JNIWrapper("NewObject");

  1516 #ifndef USDT2

  1517   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1518 #else /* USDT2 */

  1519   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1520                               env, clazz, (uintptr_t) methodID);

  1521 #endif /* USDT2 */

  1522   jobject obj = NULL;

  1523   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1525   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1526   obj = JNIHandles::make_local(env, i);

  1527   va_list args;

  1528   va_start(args, methodID);

  1529   JavaValue jvalue(T_VOID);

  1530   JNI_ArgumentPusherVaArg ap(methodID, args);

  1531   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1532   va_end(args);

  1533   return obj;

  1534 JNI_END

  1537 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1538   JNIWrapper("GetObjectClass");

  1539 #ifndef USDT2

  1540   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1541 #else /* USDT2 */

  1542   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1543                                    env, obj);

  1544 #endif /* USDT2 */

  1545   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1546   jclass ret =

  1547     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1548 #ifndef USDT2

  1549   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1550 #else /* USDT2 */

  1551   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1552                                     ret);

  1553 #endif /* USDT2 */

  1554   return ret;

  1555 JNI_END

  1557 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1558   JNIWrapper("IsInstanceOf");

  1559 #ifndef USDT2

  1560   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1561 #else /* USDT2 */

  1562   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1563                                  env, obj, clazz);

  1564 #endif /* USDT2 */

  1565   jboolean ret = JNI_TRUE;

  1566   if (obj != NULL) {

  1567     ret = JNI_FALSE;

  1568     Klass* k = java_lang_Class::as_Klass(

  1569       JNIHandles::resolve_non_null(clazz));

  1570     if (k != NULL) {

  1571       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1572     }

  1573   }

  1574 #ifndef USDT2

  1575   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1576 #else /* USDT2 */

  1577   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1578                                   ret);

  1579 #endif /* USDT2 */

  1580   return ret;

  1581 JNI_END

  1584 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1585                                const char *sig, bool is_static, TRAPS) {

  1586   // %%%% This code should probably just call into a method in the LinkResolver

  1587   //

  1588   // The class should have been loaded (we have an instance of the class

  1589   // passed in) so the method and signature should already be in the symbol

  1590   // table.  If they're not there, the method doesn't exist.

  1591   const char *name_to_probe = (name_str == NULL)

  1592                         ? vmSymbols::object_initializer_name()->as_C_string()

  1593                         : name_str;

  1594   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1595   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1597   if (name == NULL || signature == NULL) {

  1598     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1599   }

  1601   // Throw a NoSuchMethodError exception if we have an instance of a

  1602   // primitive java.lang.Class

  1603   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

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

  1605   }

  1607   KlassHandle klass(THREAD,

  1608                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1610   // Make sure class is linked and initialized before handing id's out to

  1611   // Method*s.

  1612   klass()->initialize(CHECK_NULL);

  1614   Method* m;

  1615   if (name == vmSymbols::object_initializer_name() ||

  1616       name == vmSymbols::class_initializer_name()) {

  1617     // Never search superclasses for constructors

  1618     if (klass->oop_is_instance()) {

  1619       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1620     } else {

  1621       m = NULL;

  1622     }

  1623   } else {

  1624     m = klass->lookup_method(name, signature);

  1625     // Look up interfaces

  1626     if (m == NULL && klass->oop_is_instance()) {

  1627       m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,

  1628                                                                    signature);

  1629     }

  1630   }

  1631   if (m == NULL || (m->is_static() != is_static)) {

  1632     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1633   }

  1634   return m->jmethod_id();

  1635 }

  1638 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1639           const char *name, const char *sig))

  1640   JNIWrapper("GetMethodID");

  1641 #ifndef USDT2

  1642   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1643 #else /* USDT2 */

  1644   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1645                                 env, clazz, (char *) name, (char *) sig);

  1646 #endif /* USDT2 */

  1647   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1648 #ifndef USDT2

  1649   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1650 #else /* USDT2 */

  1651   HOTSPOT_JNI_GETMETHODID_RETURN(

  1652                                  (uintptr_t) ret);

  1653 #endif /* USDT2 */

  1654   return ret;

  1655 JNI_END

  1658 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1659           const char *name, const char *sig))

  1660   JNIWrapper("GetStaticMethodID");

  1661 #ifndef USDT2

  1662   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1663 #else /* USDT2 */

  1664   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1665                                       env, (char *) clazz, (char *) name, (char *)sig);

  1666 #endif /* USDT2 */

  1667   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1668 #ifndef USDT2

  1669   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1670 #else /* USDT2 */

  1671   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1672                                        (uintptr_t) ret);

  1673 #endif /* USDT2 */

  1674   return ret;

  1675 JNI_END

  1679 //

  1680 // Calling Methods

  1681 //

  1683 #ifndef USDT2

  1684 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1685 \

  1686   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

  1687   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\

  1688   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1689 \

  1690 JNI_ENTRY(ResultType, \

  1691           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1692   JNIWrapper("Call" XSTR(Result) "Method"); \

  1693 \

  1694   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1695   ResultType ret = 0;\

  1696   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1697                      (const ResultType&)ret);\

  1698 \

  1699   va_list args; \

  1700   va_start(args, methodID); \

  1701   JavaValue jvalue(Tag); \

  1702   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1703   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1704   va_end(args); \

  1705   ret = jvalue.get_##ResultType(); \

  1706   return ret;\

  1707 JNI_END \

  1708 \

  1709 \

  1710 JNI_ENTRY(ResultType, \

  1711           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1712   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1713 \

  1714   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1715   ResultType ret = 0;\

  1716   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1717                      (const ResultType&)ret);\

  1718 \

  1719   JavaValue jvalue(Tag); \

  1720   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1721   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1722   ret = jvalue.get_##ResultType(); \

  1723   return ret;\

  1724 JNI_END \

  1725 \

  1726 \

  1727 JNI_ENTRY(ResultType, \

  1728           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1729   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1730   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1731   ResultType ret = 0;\

  1732   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1733                      (const ResultType&)ret);\

  1734 \

  1735   JavaValue jvalue(Tag); \

  1736   JNI_ArgumentPusherArray ap(methodID, args); \

  1737   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1738   ret = jvalue.get_##ResultType(); \

  1739   return ret;\

  1740 JNI_END

  1742 // the runtime type of subword integral basic types is integer

  1743 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1744 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1745 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1746 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1748 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1749 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1750 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1751 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1752 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1754 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1755 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1756 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1758 #else /* USDT2 */

  1760 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1761                           , EntryProbe, ReturnProbe)    \

  1762 \

  1763   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1764                           , ReturnProbe);                          \

  1765 \

  1766 JNI_ENTRY(ResultType, \

  1767           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1768   JNIWrapper("Call" XSTR(Result) "Method"); \

  1769 \

  1770   EntryProbe; \

  1771   ResultType ret = 0;\

  1772   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1773                      (const ResultType&)ret);\

  1774 \

  1775   va_list args; \

  1776   va_start(args, methodID); \

  1777   JavaValue jvalue(Tag); \

  1778   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1779   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1780   va_end(args); \

  1781   ret = jvalue.get_##ResultType(); \

  1782   return ret;\

  1783 JNI_END

  1785 // the runtime type of subword integral basic types is integer

  1786 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

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

  1788                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1789 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

  1790                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1791                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1792 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

  1793                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1794                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1795 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

  1796                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1797                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1799 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1800                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1801                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1802 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

  1803                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1804                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1805 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

  1806                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1807                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1808 // Float and double probes don't return value because dtrace doesn't currently support it

  1809 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1810                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1811                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1812 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

  1813                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1814                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1816 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1817                           , EntryProbe, ReturnProbe)    \

  1818 \

  1819   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1820                           , ReturnProbe);                          \

  1821 \

  1822 JNI_ENTRY(ResultType, \

  1823           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1824   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1825 \

  1826   EntryProbe;\

  1827   ResultType ret = 0;\

  1828   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1829                      (const ResultType&)ret);\

  1830 \

  1831   JavaValue jvalue(Tag); \

  1832   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1833   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1834   ret = jvalue.get_##ResultType(); \

  1835   return ret;\

  1836 JNI_END

  1838 // the runtime type of subword integral basic types is integer

  1839 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

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

  1841                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1842 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

  1843                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1844                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1845 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

  1846                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1847                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1848 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

  1849                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1850                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1852 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1853                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1854                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1855 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

  1856                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1857                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1858 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

  1859                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1860                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1861 // Float and double probes don't return value because dtrace doesn't currently support it

  1862 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1863                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1864                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1865 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

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

  1867                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1869 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1870                           , EntryProbe, ReturnProbe)    \

  1871 \

  1872   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1873                           , ReturnProbe);                          \

  1874 \

  1875 JNI_ENTRY(ResultType, \

  1876           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1877   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1878   EntryProbe; \

  1879   ResultType ret = 0;\

  1880   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1881                      (const ResultType&)ret);\

  1882 \

  1883   JavaValue jvalue(Tag); \

  1884   JNI_ArgumentPusherArray ap(methodID, args); \

  1885   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1886   ret = jvalue.get_##ResultType(); \

  1887   return ret;\

  1888 JNI_END

  1890 // the runtime type of subword integral basic types is integer

  1891 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

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

  1893                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1894 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

  1895                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1896                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1897 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

  1898                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1899                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1900 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

  1901                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1902                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1904 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1905                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1906                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1907 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

  1908                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1909                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1910 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

  1911                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1912                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1913 // Float and double probes don't return value because dtrace doesn't currently support it

  1914 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1915                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1916                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1917 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1918                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1919                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1921 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1922 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1923 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1925 #endif /* USDT2 */

  1927 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1928   JNIWrapper("CallVoidMethod");

  1929 #ifndef USDT2

  1930   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1931 #else /* USDT2 */

  1932   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1933                                    env, obj, (uintptr_t) methodID);

  1934 #endif /* USDT2 */

  1935   DT_VOID_RETURN_MARK(CallVoidMethod);

  1937   va_list args;

  1938   va_start(args, methodID);

  1939   JavaValue jvalue(T_VOID);

  1940   JNI_ArgumentPusherVaArg ap(methodID, args);

  1941   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1942   va_end(args);

  1943 JNI_END

  1946 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1947   JNIWrapper("CallVoidMethodV");

  1948 #ifndef USDT2

  1949   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1950 #else /* USDT2 */

  1951   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1952                                     env, obj, (uintptr_t) methodID);

  1953 #endif /* USDT2 */

  1954   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1956   JavaValue jvalue(T_VOID);

  1957   JNI_ArgumentPusherVaArg ap(methodID, args);

  1958   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1959 JNI_END

  1962 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1963   JNIWrapper("CallVoidMethodA");

  1964 #ifndef USDT2

  1965   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1966 #else /* USDT2 */

  1967   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1968                                     env, obj, (uintptr_t) methodID);

  1969 #endif /* USDT2 */

  1970   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1972   JavaValue jvalue(T_VOID);

  1973   JNI_ArgumentPusherArray ap(methodID, args);

  1974   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1975 JNI_END

  1978 #ifndef USDT2

  1979 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1980 \

  1981   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

  1982   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\

  1983   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1984 \

  1985 JNI_ENTRY(ResultType, \

  1986           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1987   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1988 \

  1989   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1990   ResultType ret;\

  1991   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1992                      (const ResultType&)ret);\

  1993 \

  1994   va_list args; \

  1995   va_start(args, methodID); \

  1996   JavaValue jvalue(Tag); \

  1997   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1998   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1999   va_end(args); \

  2000   ret = jvalue.get_##ResultType(); \

  2001   return ret;\

  2002 JNI_END \

  2003 \

  2004 JNI_ENTRY(ResultType, \

  2005           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2006   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  2007   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  2008   ResultType ret;\

  2009   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2010                      (const ResultType&)ret);\

  2011 \

  2012   JavaValue jvalue(Tag); \

  2013   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2014   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2015   ret = jvalue.get_##ResultType(); \

  2016   return ret;\

  2017 JNI_END \

  2018 \

  2019 JNI_ENTRY(ResultType, \

  2020           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2021   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2022   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  2023   ResultType ret;\

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

  2025                      (const ResultType&)ret);\

  2026 \

  2027   JavaValue jvalue(Tag); \

  2028   JNI_ArgumentPusherArray ap(methodID, args); \

  2029   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2030   ret = jvalue.get_##ResultType(); \

  2031   return ret;\

  2032 JNI_END

  2034 // the runtime type of subword integral basic types is integer

  2035 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2036 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2037 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2038 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2040 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2041 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2042 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2043 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2044 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2047 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2048 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2049 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2051 #else /* USDT2 */

  2053 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2054                                     , EntryProbe, ReturnProbe)      \

  2055 \

  2056   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2057                           , ReturnProbe);\

  2058 \

  2059 JNI_ENTRY(ResultType, \

  2060           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2061   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2062 \

  2063   EntryProbe;\

  2064   ResultType ret;\

  2065   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2066                      (const ResultType&)ret);\

  2067 \

  2068   va_list args; \

  2069   va_start(args, methodID); \

  2070   JavaValue jvalue(Tag); \

  2071   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2072   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2073   va_end(args); \

  2074   ret = jvalue.get_##ResultType(); \

  2075   return ret;\

  2076 JNI_END

  2078 // the runtime type of subword integral basic types is integer

  2079 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2081                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2082 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

  2083                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2084                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2085 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

  2086                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2087                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2088 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

  2089                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2090                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2092 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2093                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2094                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2095 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

  2096                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2097                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2098 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

  2099                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2100 // Float and double probes don't return value because dtrace doesn't currently support it

  2101                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2102 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2103                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2104                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2105 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

  2106                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2107                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2109 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2110                                     , EntryProbe, ReturnProbe)      \

  2111 \

  2112   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2113                           , ReturnProbe);\

  2114 \

  2115 JNI_ENTRY(ResultType, \

  2116           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2117   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2118 \

  2119   EntryProbe;\

  2120   ResultType ret;\

  2121   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2122                      (const ResultType&)ret);\

  2123 \

  2124   JavaValue jvalue(Tag); \

  2125   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2126   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2127   ret = jvalue.get_##ResultType(); \

  2128   return ret;\

  2129 JNI_END

  2131 // the runtime type of subword integral basic types is integer

  2132 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2134                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2135 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

  2136                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2137                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2138 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

  2139                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2140                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2141 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

  2142                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2143                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2145 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2146                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2147                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2148 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

  2149                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2150                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2151 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

  2152                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2153 // Float and double probes don't return value because dtrace doesn't currently support it

  2154                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2155 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2156                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2157                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2158 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

  2159                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2160                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2162 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2163                                     , EntryProbe, ReturnProbe)      \

  2164 \

  2165   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2166                           , ReturnProbe);\

  2167 \

  2168 JNI_ENTRY(ResultType, \

  2169           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2170   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2171 \

  2172   EntryProbe;\

  2173   ResultType ret;\

  2174   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2175                      (const ResultType&)ret);\

  2176 \

  2177   JavaValue jvalue(Tag); \

  2178   JNI_ArgumentPusherArray ap(methodID, args); \

  2179   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2180   ret = jvalue.get_##ResultType(); \

  2181   return ret;\

  2182 JNI_END

  2184 // the runtime type of subword integral basic types is integer

  2185 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2187                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2188 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

  2189                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2190                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2191 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

  2192                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2193                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2194 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

  2195                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2196                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2198 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2199                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2200                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2201 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

  2202                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2203                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2204 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2206 // Float and double probes don't return value because dtrace doesn't currently support it

  2207                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2208 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2209                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2210                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2211 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2212                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2213                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2215 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2216                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2217 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2218                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2219 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2220                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2221 #endif /* USDT2 */

  2223 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2224   JNIWrapper("CallNonvirtualVoidMethod");

  2226 #ifndef USDT2

  2227   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2228                env, obj, cls, methodID);

  2229 #else /* USDT2 */

  2230   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2231                env, obj, cls, (uintptr_t) methodID);

  2232 #endif /* USDT2 */

  2233   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2235   va_list args;

  2236   va_start(args, methodID);

  2237   JavaValue jvalue(T_VOID);

  2238   JNI_ArgumentPusherVaArg ap(methodID, args);

  2239   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2240   va_end(args);

  2241 JNI_END

  2244 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2245   JNIWrapper("CallNonvirtualVoidMethodV");

  2247 #ifndef USDT2

  2248   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2249                env, obj, cls, methodID);

  2250 #else /* USDT2 */

  2251   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2252                env, obj, cls, (uintptr_t) methodID);

  2253 #endif /* USDT2 */

  2254   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2256   JavaValue jvalue(T_VOID);

  2257   JNI_ArgumentPusherVaArg ap(methodID, args);

  2258   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2259 JNI_END

  2262 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2263   JNIWrapper("CallNonvirtualVoidMethodA");

  2264 #ifndef USDT2

  2265   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2266                 env, obj, cls, methodID);

  2267 #else /* USDT2 */

  2268   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2269                 env, obj, cls, (uintptr_t) methodID);

  2270 #endif /* USDT2 */

  2271   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2272   JavaValue jvalue(T_VOID);

  2273   JNI_ArgumentPusherArray ap(methodID, args);

  2274   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2275 JNI_END

  2278 #ifndef USDT2

  2279 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2280 \

  2281   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

  2282   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\

  2283   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2284 \

  2285 JNI_ENTRY(ResultType, \

  2286           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2287   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2288 \

  2289   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2290   ResultType ret = 0;\

  2291   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2292                      (const ResultType&)ret);\

  2293 \

  2294   va_list args; \

  2295   va_start(args, methodID); \

  2296   JavaValue jvalue(Tag); \

  2297   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2298   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2299   va_end(args); \

  2300   ret = jvalue.get_##ResultType(); \

  2301   return ret;\

  2302 JNI_END \

  2303 \

  2304 JNI_ENTRY(ResultType, \

  2305           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2306   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2307   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2308   ResultType ret = 0;\

  2309   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2310                      (const ResultType&)ret);\

  2311 \

  2312   JavaValue jvalue(Tag); \

  2313   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2314   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2315   ret = jvalue.get_##ResultType(); \

  2316   return ret;\

  2317 JNI_END \

  2318 \

  2319 JNI_ENTRY(ResultType, \

  2320           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2321   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2322   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2323   ResultType ret = 0;\

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

  2325                      (const ResultType&)ret);\

  2326 \

  2327   JavaValue jvalue(Tag); \

  2328   JNI_ArgumentPusherArray ap(methodID, args); \

  2329   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2330   ret = jvalue.get_##ResultType(); \

  2331   return ret;\

  2332 JNI_END

  2334 // the runtime type of subword integral basic types is integer

  2335 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2336 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2337 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2338 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2340 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2341 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2342 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2343 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2344 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2347 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2348 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2349 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2351 #else /* USDT2 */

  2353 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2354                                 , EntryProbe, ResultProbe) \

  2355 \

  2356   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2357                           , ResultProbe);                               \

  2358 \

  2359 JNI_ENTRY(ResultType, \

  2360           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2361   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2362 \

  2363   EntryProbe; \

  2364   ResultType ret = 0;\

  2365   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2366                      (const ResultType&)ret);\

  2367 \

  2368   va_list args; \

  2369   va_start(args, methodID); \

  2370   JavaValue jvalue(Tag); \

  2371   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2372   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2373   va_end(args); \

  2374   ret = jvalue.get_##ResultType(); \

  2375   return ret;\

  2376 JNI_END

  2378 // the runtime type of subword integral basic types is integer

  2379 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2381                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2382 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

  2383                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2384                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2385 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

  2386                         , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2387                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2388 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

  2389                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2390                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2392 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2393                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2394                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2395 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

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

  2397                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2398 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2400                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2401 // Float and double probes don't return value because dtrace doesn't currently support it

  2402 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2403                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2404                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2405 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

  2406                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2407                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2409 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2410                                 , EntryProbe, ResultProbe) \

  2411 \

  2412   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2413                           , ResultProbe);                               \

  2414 \

  2415 JNI_ENTRY(ResultType, \

  2416           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2417   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2418 \

  2419   EntryProbe; \

  2420   ResultType ret = 0;\

  2421   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2422                      (const ResultType&)ret);\

  2423 \

  2424   JavaValue jvalue(Tag); \

  2425   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2426   /* Make sure class is initialized before trying to invoke its method */ \

  2427   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2428   k()->initialize(CHECK_0); \

  2429   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2430   va_end(args); \

  2431   ret = jvalue.get_##ResultType(); \

  2432   return ret;\

  2433 JNI_END

  2435 // the runtime type of subword integral basic types is integer

  2436 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2438                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2439 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

  2440                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2441                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2442 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

  2443                         , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2444                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2445 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

  2446                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2447                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2449 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2450                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2451                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2452 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

  2453                         , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2454                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2455 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

  2456                         , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2457                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2458 // Float and double probes don't return value because dtrace doesn't currently support it

  2459 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2460                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2461                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2462 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

  2463                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2464                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2466 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2467                                 , EntryProbe, ResultProbe) \

  2468 \

  2469   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2470                           , ResultProbe);                               \

  2471 \

  2472 JNI_ENTRY(ResultType, \

  2473           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2474   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2475 \

  2476   EntryProbe; \

  2477   ResultType ret = 0;\

  2478   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2479                      (const ResultType&)ret);\

  2480 \

  2481   JavaValue jvalue(Tag); \

  2482   JNI_ArgumentPusherArray ap(methodID, args); \

  2483   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2484   ret = jvalue.get_##ResultType(); \

  2485   return ret;\

  2486 JNI_END

  2488 // the runtime type of subword integral basic types is integer

  2489 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2491                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2492 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

  2493                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2494                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2495 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

  2496                         , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2497                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2498 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

  2499                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2500                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2502 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2503                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2504                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2505 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

  2506                         , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2507                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2508 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

  2509                         , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2510                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2511 // Float and double probes don't return value because dtrace doesn't currently support it

  2512 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2513                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2514                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2515 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2516                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2517                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2519 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2520                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2521 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2522                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2523 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2524                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2525 #endif /* USDT2 */

  2527 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2528   JNIWrapper("CallStaticVoidMethod");

  2529 #ifndef USDT2

  2530   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2531 #else /* USDT2 */

  2532   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2533                                          env, cls, (uintptr_t) methodID);

  2534 #endif /* USDT2 */

  2535   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2537   va_list args;

  2538   va_start(args, methodID);

  2539   JavaValue jvalue(T_VOID);

  2540   JNI_ArgumentPusherVaArg ap(methodID, args);

  2541   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2542   va_end(args);

  2543 JNI_END

  2546 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2547   JNIWrapper("CallStaticVoidMethodV");

  2548 #ifndef USDT2

  2549   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2550 #else /* USDT2 */

  2551   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2552                                           env, cls, (uintptr_t) methodID);

  2553 #endif /* USDT2 */

  2554   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2556   JavaValue jvalue(T_VOID);

  2557   JNI_ArgumentPusherVaArg ap(methodID, args);

  2558   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2559 JNI_END

  2562 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2563   JNIWrapper("CallStaticVoidMethodA");

  2564 #ifndef USDT2

  2565   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2566 #else /* USDT2 */

  2567   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2568                                           env, cls, (uintptr_t) methodID);

  2569 #endif /* USDT2 */

  2570   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2572   JavaValue jvalue(T_VOID);

  2573   JNI_ArgumentPusherArray ap(methodID, args);

  2574   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2575 JNI_END

  2578 //

  2579 // Accessing Fields

  2580 //

  2583 #ifndef USDT2

  2584 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2585 #else /* USDT2 */

  2586 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2587                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2588 #endif /* USDT2 */

  2590 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2591           const char *name, const char *sig))

  2592   JNIWrapper("GetFieldID");

  2593 #ifndef USDT2

  2594   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2595 #else /* USDT2 */

  2596   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2597                                env, clazz, (char *) name, (char *) sig);

  2598 #endif /* USDT2 */

  2599   jfieldID ret = 0;

  2600   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2602   // The class should have been loaded (we have an instance of the class

  2603   // passed in) so the field and signature should already be in the symbol

  2604   // table.  If they're not there, the field doesn't exist.

  2605   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2606   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2607   if (fieldname == NULL || signame == NULL) {

  2608     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2609   }

  2610   KlassHandle k(THREAD,

  2611                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2612   // Make sure class is initialized before handing id's out to fields

  2613   k()->initialize(CHECK_NULL);

  2615   fieldDescriptor fd;

  2616   if (!k()->oop_is_instance() ||

  2617       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2618     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2619   }

  2621   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2622   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2623   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2624   return ret;

  2625 JNI_END

  2628 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2629   JNIWrapper("GetObjectField");

  2630 #ifndef USDT2

  2631   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2632 #else /* USDT2 */

  2633   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2634                                    env, obj, (uintptr_t) fieldID);

  2635 #endif /* USDT2 */

  2636   oop o = JNIHandles::resolve_non_null(obj);

  2637   Klass* k = o->klass();

  2638   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2639   // Keep JVMTI addition small and only check enabled flag here.

  2640   // jni_GetField_probe() assumes that is okay to create handles.

  2641   if (JvmtiExport::should_post_field_access()) {

  2642     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2643   }

  2644   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2645 #if INCLUDE_ALL_GCS

  2646   // If G1 is enabled and we are accessing the value of the referent

  2647   // field in a reference object then we need to register a non-null

  2648   // referent with the SATB barrier.

  2649   if (UseG1GC) {

  2650     bool needs_barrier = false;

  2652     if (ret != NULL &&

  2653         offset == java_lang_ref_Reference::referent_offset &&

  2654         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2655       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2656       needs_barrier = true;

  2657     }

  2659     if (needs_barrier) {

  2660       oop referent = JNIHandles::resolve(ret);

  2661       G1SATBCardTableModRefBS::enqueue(referent);

  2662     }

  2663   }

  2664 #endif // INCLUDE_ALL_GCS

  2665 #ifndef USDT2

  2666   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2667 #else /* USDT2 */

  2668 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2669                                   ret);

  2670 #endif /* USDT2 */

  2671   return ret;

  2672 JNI_END

  2675 #ifndef USDT2

  2676 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2677 \

  2678   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2679 \

  2680 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2681   JNIWrapper("Get" XSTR(Result) "Field"); \

  2682 \

  2683   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2684   Return ret = 0;\

  2685   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2686 \

  2687   oop o = JNIHandles::resolve_non_null(obj); \

  2688   Klass* k = o->klass(); \

  2689   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2690   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2691   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2692   /* and creates a ResetNoHandleMark.                                   */ \

  2693   if (JvmtiExport::should_post_field_access()) { \

  2694     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2695   } \

  2696   ret = o->Fieldname##_field(offset); \

  2697   return ret; \

  2698 JNI_END

  2700 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2701 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2702 DEFINE_GETFIELD(jchar,    char,   Char)

  2703 DEFINE_GETFIELD(jshort,   short,  Short)

  2704 DEFINE_GETFIELD(jint,     int,    Int)

  2705 DEFINE_GETFIELD(jlong,    long,   Long)

  2706 DEFINE_GETFIELD(jfloat,   float,  Float)

  2707 DEFINE_GETFIELD(jdouble,  double, Double)

  2709 #else /* USDT2 */

  2711 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2712   , EntryProbe, ReturnProbe) \

  2713 \

  2714   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2715   , ReturnProbe); \

  2716 \

  2717 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2718   JNIWrapper("Get" XSTR(Result) "Field"); \

  2719 \

  2720   EntryProbe; \

  2721   Return ret = 0;\

  2722   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2723 \

  2724   oop o = JNIHandles::resolve_non_null(obj); \

  2725   Klass* k = o->klass(); \

  2726   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2727   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2728   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2729   /* and creates a ResetNoHandleMark.                                   */ \

  2730   if (JvmtiExport::should_post_field_access()) { \

  2731     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2732   } \

  2733   ret = o->Fieldname##_field(offset); \

  2734   return ret; \

  2735 JNI_END

  2737 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2738                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2739                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2740 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2741                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2742                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2743 DEFINE_GETFIELD(jchar,    char,   Char

  2744                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2745                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2746 DEFINE_GETFIELD(jshort,   short,  Short

  2747                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2748                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2749 DEFINE_GETFIELD(jint,     int,    Int

  2750                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2751                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2752 DEFINE_GETFIELD(jlong,    long,   Long

  2753                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2754                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2755 // Float and double probes don't return value because dtrace doesn't currently support it

  2756 DEFINE_GETFIELD(jfloat,   float,  Float

  2757                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2758                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2759 DEFINE_GETFIELD(jdouble,  double, Double

  2760                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2761                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2762 #endif /* USDT2 */

  2764 address jni_GetBooleanField_addr() {

  2765   return (address)jni_GetBooleanField;

  2766 }

  2767 address jni_GetByteField_addr() {

  2768   return (address)jni_GetByteField;

  2769 }

  2770 address jni_GetCharField_addr() {

  2771   return (address)jni_GetCharField;

  2772 }

  2773 address jni_GetShortField_addr() {

  2774   return (address)jni_GetShortField;

  2775 }

  2776 address jni_GetIntField_addr() {

  2777   return (address)jni_GetIntField;

  2778 }

  2779 address jni_GetLongField_addr() {

  2780   return (address)jni_GetLongField;

  2781 }

  2782 address jni_GetFloatField_addr() {

  2783   return (address)jni_GetFloatField;

  2784 }

  2785 address jni_GetDoubleField_addr() {

  2786   return (address)jni_GetDoubleField;

  2787 }

  2789 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2790   JNIWrapper("SetObjectField");

  2791 #ifndef USDT2

  2792   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2793 #else /* USDT2 */

  2794   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2795                                    env, obj, (uintptr_t) fieldID, value);

  2796 #endif /* USDT2 */

  2797   oop o = JNIHandles::resolve_non_null(obj);

  2798   Klass* k = o->klass();

  2799   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2800   // Keep JVMTI addition small and only check enabled flag here.

  2801   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2802   // and creates a ResetNoHandleMark.

  2803   if (JvmtiExport::should_post_field_modification()) {

  2804     jvalue field_value;

  2805     field_value.l = value;

  2806     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2807   }

  2808   o->obj_field_put(offset, JNIHandles::resolve(value));

  2809 #ifndef USDT2

  2810   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2811 #else /* USDT2 */

  2812   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2813 );

  2814 #endif /* USDT2 */

  2815 JNI_END

  2817 #ifndef USDT2

  2818 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2819 \

  2820 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2821   JNIWrapper("Set" XSTR(Result) "Field"); \

  2822 \

  2823   FP_SELECT_##Result( \

  2824     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2825     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2826 \

  2827   oop o = JNIHandles::resolve_non_null(obj); \

  2828   Klass* k = o->klass(); \

  2829   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2830   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2831   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2832   /* and creates a ResetNoHandleMark.                                   */ \

  2833   if (JvmtiExport::should_post_field_modification()) { \

  2834     jvalue field_value; \

  2835     field_value.unionType = value; \

  2836     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2837   } \

  2838   o->Fieldname##_field_put(offset, value); \

  2839   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2840 JNI_END

  2842 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2843 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2844 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

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

  2846 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2847 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2848 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2849 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2851 #else /* USDT2 */

  2853 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2854                         , EntryProbe, ReturnProbe) \

  2855 \

  2856 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2857   JNIWrapper("Set" XSTR(Result) "Field"); \

  2858 \

  2859   EntryProbe; \

  2860 \

  2861   oop o = JNIHandles::resolve_non_null(obj); \

  2862   Klass* k = o->klass(); \

  2863   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2864   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2865   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2866   /* and creates a ResetNoHandleMark.                                   */ \

  2867   if (JvmtiExport::should_post_field_modification()) { \

  2868     jvalue field_value; \

  2869     field_value.unionType = value; \

  2870     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2871   } \

  2872   o->Fieldname##_field_put(offset, value); \

  2873   ReturnProbe; \

  2874 JNI_END

  2876 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2877                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2878                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2879 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2880                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2881                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2882 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2883                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2884                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2885 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2886                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2887                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2888 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

  2889                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2890                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2891 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

  2892                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2893                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2894 // Float and double probes don't return value because dtrace doesn't currently support it

  2895 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2896                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2897                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2898 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2899                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2900                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2901 #endif /* USDT2 */

  2903 #ifndef USDT2

  2904 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2905 #else /* USDT2 */

  2906 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2907                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2908 #endif /* USDT2 */

  2910 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2911   JNIWrapper("ToReflectedField");

  2912 #ifndef USDT2

  2913   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2914                 env, cls, fieldID, isStatic);

  2915 #else /* USDT2 */

  2916   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2917                 env, cls, (uintptr_t) fieldID, isStatic);

  2918 #endif /* USDT2 */

  2919   jobject ret = NULL;

  2920   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2922   fieldDescriptor fd;

  2923   bool found = false;

  2924   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2926   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2928   if (isStatic) {

  2929     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2930     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2931     assert(id->is_static_field_id(), "invalid static field id");

  2932     found = id->find_local_field(&fd);

  2933   } else {

  2934     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2935     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2936     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2937   }

  2938   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2939   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2940   ret = JNIHandles::make_local(env, reflected);

  2941   return ret;

  2942 JNI_END

  2945 //

  2946 // Accessing Static Fields

  2947 //

  2948 #ifndef USDT2

  2949 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2950 #else /* USDT2 */

  2951 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2952                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2953 #endif /* USDT2 */

  2955 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2956           const char *name, const char *sig))

  2957   JNIWrapper("GetStaticFieldID");

  2958 #ifndef USDT2

  2959   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2960 #else /* USDT2 */

  2961   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2962                                      env, clazz, (char *) name, (char *) sig);

  2963 #endif /* USDT2 */

  2964   jfieldID ret = NULL;

  2965   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2967   // The class should have been loaded (we have an instance of the class

  2968   // passed in) so the field and signature should already be in the symbol

  2969   // table.  If they're not there, the field doesn't exist.

  2970   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2971   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2972   if (fieldname == NULL || signame == NULL) {

  2973     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2974   }

  2975   KlassHandle k(THREAD,

  2976                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2977   // Make sure class is initialized before handing id's out to static fields

  2978   k()->initialize(CHECK_NULL);

  2980   fieldDescriptor fd;

  2981   if (!k()->oop_is_instance() ||

  2982       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2983     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2984   }

  2986   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2987   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2988   debug_only(id->set_is_static_field_id();)

  2990   debug_only(id->verify(fd.field_holder()));

  2992   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2993   return ret;

  2994 JNI_END

  2997 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2998   JNIWrapper("GetStaticObjectField");

  2999 #ifndef USDT2

  3000   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  3001 #else /* USDT2 */

  3002   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  3003                                          env, clazz, (uintptr_t) fieldID);

  3004 #endif /* USDT2 */

  3005 #if INCLUDE_JNI_CHECK

  3006   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  3007 #endif // INCLUDE_JNI_CHECK

  3008   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3009   assert(id->is_static_field_id(), "invalid static field id");

  3010   // Keep JVMTI addition small and only check enabled flag here.

  3011   // jni_GetField_probe() assumes that is okay to create handles.

  3012   if (JvmtiExport::should_post_field_access()) {

  3013     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  3014   }

  3015   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  3016 #ifndef USDT2

  3017   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  3018 #else /* USDT2 */

  3019   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  3020                                           ret);

  3021 #endif /* USDT2 */

  3022   return ret;

  3023 JNI_END

  3025 #ifndef USDT2

  3026 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  3027 \

  3028   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3029 \

  3030 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3031   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3032   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3033   Return ret = 0;\

  3034   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3035                      (const Return&)ret);\

  3036   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3037   assert(id->is_static_field_id(), "invalid static field id"); \

  3038   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3039   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3040   if (JvmtiExport::should_post_field_access()) { \

  3041     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3042   } \

  3043   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3044   return ret;\

  3045 JNI_END

  3047 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3048 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3049 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3050 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3051 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3052 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3053 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3054 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3056 #else /* USDT2 */

  3058 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3059                               , EntryProbe, ReturnProbe) \

  3060 \

  3061   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3062                           , ReturnProbe);                                          \

  3063 \

  3064 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3065   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3066   EntryProbe; \

  3067   Return ret = 0;\

  3068   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3069                      (const Return&)ret);\

  3070   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3071   assert(id->is_static_field_id(), "invalid static field id"); \

  3072   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3073   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3074   if (JvmtiExport::should_post_field_access()) { \

  3075     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3076   } \

  3077   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3078   return ret;\

  3079 JNI_END

  3081 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3082                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3083 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3084                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3085 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3086                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3087 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3088                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3089 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3090                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3091 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3092                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3093 // Float and double probes don't return value because dtrace doesn't currently support it

  3094 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3095                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3096 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3097                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3098 #endif /* USDT2 */

  3100 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3101   JNIWrapper("SetStaticObjectField");

  3102 #ifndef USDT2

  3103   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3104 #else /* USDT2 */

  3105  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3106                                         env, clazz, (uintptr_t) fieldID, value);

  3107 #endif /* USDT2 */

  3108   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3109   assert(id->is_static_field_id(), "invalid static field id");

  3110   // Keep JVMTI addition small and only check enabled flag here.

  3111   // jni_SetField_probe() assumes that is okay to create handles.

  3112   if (JvmtiExport::should_post_field_modification()) {

  3113     jvalue field_value;

  3114     field_value.l = value;

  3115     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3116   }

  3117   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3118 #ifndef USDT2

  3119   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3120 #else /* USDT2 */

  3121   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3122                                           );

  3123 #endif /* USDT2 */

  3124 JNI_END

  3127 #ifndef USDT2

  3128 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3129 \

  3130 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3131   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3132   FP_SELECT_##Result( \

  3133      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3134      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3135 \

  3136   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3137   assert(id->is_static_field_id(), "invalid static field id"); \

  3138   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3139   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3140   if (JvmtiExport::should_post_field_modification()) { \

  3141     jvalue field_value; \

  3142     field_value.unionType = value; \

  3143     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3144   } \

  3145   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3146   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3147 JNI_END

  3149 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3150 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3151 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3152 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3153 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3154 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3155 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3156 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3158 #else /* USDT2 */

  3160 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3161                               , EntryProbe, ReturnProbe) \

  3162 \

  3163 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3164   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3165   EntryProbe; \

  3166 \

  3167   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3168   assert(id->is_static_field_id(), "invalid static field id"); \

  3169   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3170   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3171   if (JvmtiExport::should_post_field_modification()) { \

  3172     jvalue field_value; \

  3173     field_value.unionType = value; \

  3174     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3175   } \

  3176   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3177   ReturnProbe;\

  3178 JNI_END

  3180 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3181                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3182                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3183 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3184                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3185                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3186 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3187                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3188                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3189 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3190                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3191                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3192 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3193                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3194                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3195 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3196                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3197                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3198 // Float and double probes don't return value because dtrace doesn't currently support it

  3199 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3200                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3201                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3202 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3203                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3204                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3205 #endif /* USDT2 */

  3207 //

  3208 // String Operations

  3209 //

  3211 // Unicode Interface

  3213 #ifndef USDT2

  3214 DT_RETURN_MARK_DECL(NewString, jstring);

  3215 #else /* USDT2 */

  3216 DT_RETURN_MARK_DECL(NewString, jstring

  3217                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3218 #endif /* USDT2 */

  3220 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3221   JNIWrapper("NewString");

  3222 #ifndef USDT2

  3223   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3224 #else /* USDT2 */

  3225  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3226                              env, (uint16_t *) unicodeChars, len);

  3227 #endif /* USDT2 */

  3228   jstring ret = NULL;

  3229   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3230   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3231   ret = (jstring) JNIHandles::make_local(env, string);

  3232   return ret;

  3233 JNI_END

  3236 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3237   JNIWrapper("GetStringLength");

  3238 #ifndef USDT2

  3239   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3240 #else /* USDT2 */

  3241   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3242                                     env, string);

  3243 #endif /* USDT2 */

  3244   jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string));

  3245 #ifndef USDT2

  3246   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3247 #else /* USDT2 */

  3248  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3249                                     ret);

  3250 #endif /* USDT2 */

  3251   return ret;

  3252 JNI_END

  3255 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3256   JNIEnv *env, jstring string, jboolean *isCopy))

  3257   JNIWrapper("GetStringChars");

  3258 #ifndef USDT2

  3259   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3260 #else /* USDT2 */

  3261  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3262                                   env, string, (uintptr_t *) isCopy);

  3263 #endif /* USDT2 */

  3264   //%note jni_5

  3265   if (isCopy != NULL) {

  3266     *isCopy = JNI_TRUE;

  3267   }

  3268   oop s = JNIHandles::resolve_non_null(string);

  3269   int s_len = java_lang_String::length(s);

  3270   typeArrayOop s_value = java_lang_String::value(s);

  3271   int s_offset = java_lang_String::offset(s);

  3272   jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3273   if (s_len > 0) {

  3274     memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3275   }

  3276   buf[s_len] = 0;

  3277 #ifndef USDT2

  3278   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3279 #else /* USDT2 */

  3280   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3281                                     buf);

  3282 #endif /* USDT2 */

  3283   return buf;

  3284 JNI_END

  3287 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3288   JNIWrapper("ReleaseStringChars");

  3289 #ifndef USDT2

  3290   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3291 #else /* USDT2 */

  3292   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3293                                        env, str, (uint16_t *) chars);

  3294 #endif /* USDT2 */

  3295   //%note jni_6

  3296   if (chars != NULL) {

  3297     // Since String objects are supposed to be immutable, don't copy any

  3298     // new data back.  A bad user will have to go after the char array.

  3299     FreeHeap((void*) chars);

  3300   }

  3301 #ifndef USDT2

  3302   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3303 #else /* USDT2 */

  3304   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3305 );

  3306 #endif /* USDT2 */

  3307 JNI_END

  3310 // UTF Interface

  3312 #ifndef USDT2

  3313 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3314 #else /* USDT2 */

  3315 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3316                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3317 #endif /* USDT2 */

  3319 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3320   JNIWrapper("NewStringUTF");

  3321 #ifndef USDT2

  3322   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3323 #else /* USDT2 */

  3324   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3325                                  env, (char *) bytes);

  3326 #endif /* USDT2 */

  3327   jstring ret;

  3328   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3330   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3331   ret = (jstring) JNIHandles::make_local(env, result);

  3332   return ret;

  3333 JNI_END

  3336 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3337   JNIWrapper("GetStringUTFLength");

  3338 #ifndef USDT2

  3339   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3340 #else /* USDT2 */

  3341  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3342                                       env, string);

  3343 #endif /* USDT2 */

  3344   jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string));

  3345 #ifndef USDT2

  3346   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3347 #else /* USDT2 */

  3348   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3349                                         ret);

  3350 #endif /* USDT2 */

  3351   return ret;

  3352 JNI_END

  3355 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3356   JNIWrapper("GetStringUTFChars");

  3357 #ifndef USDT2

  3358   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3359 #else /* USDT2 */

  3360  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3361                                      env, string, (uintptr_t *) isCopy);

  3362 #endif /* USDT2 */

  3363   oop java_string = JNIHandles::resolve_non_null(string);

  3364   size_t length = java_lang_String::utf8_length(java_string);

  3365   char* result = AllocateHeap(length + 1, mtInternal);

  3366   java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3367   if (isCopy != NULL) *isCopy = JNI_TRUE;

  3368 #ifndef USDT2

  3369   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3370 #else /* USDT2 */

  3371  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3372                                       result);

  3373 #endif /* USDT2 */

  3374   return result;

  3375 JNI_END

  3378 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3379   JNIWrapper("ReleaseStringUTFChars");

  3380 #ifndef USDT2

  3381   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3382 #else /* USDT2 */

  3383  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3384                                          env, str, (char *) chars);

  3385 #endif /* USDT2 */

  3386   if (chars != NULL) {

  3387     FreeHeap((char*) chars);

  3388   }

  3389 #ifndef USDT2

  3390   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3391 #else /* USDT2 */

  3392 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3393 );

  3394 #endif /* USDT2 */

  3395 JNI_END

  3398 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3399   JNIWrapper("GetArrayLength");

  3400 #ifndef USDT2

  3401   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3402 #else /* USDT2 */

  3403  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3404                                   env, array);

  3405 #endif /* USDT2 */

  3406   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3407   assert(a->is_array(), "must be array");

  3408   jsize ret = a->length();

  3409 #ifndef USDT2

  3410   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3411 #else /* USDT2 */

  3412  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3413                                    ret);

  3414 #endif /* USDT2 */

  3415   return ret;

  3416 JNI_END

  3419 //

  3420 // Object Array Operations

  3421 //

  3423 #ifndef USDT2

  3424 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3425 #else /* USDT2 */

  3426 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3427                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3428 #endif /* USDT2 */

  3430 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3431   JNIWrapper("NewObjectArray");

  3432 #ifndef USDT2

  3433   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3434 #else /* USDT2 */

  3435  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3436                                   env, length, elementClass, initialElement);

  3437 #endif /* USDT2 */

  3438   jobjectArray ret = NULL;

  3439   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3440   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3441   Klass* ako = ek()->array_klass(CHECK_NULL);

  3442   KlassHandle ak = KlassHandle(THREAD, ako);

  3443   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3444   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3445   oop initial_value = JNIHandles::resolve(initialElement);

  3446   if (initial_value != NULL) {  // array already initialized with NULL

  3447     for (int index = 0; index < length; index++) {

  3448       result->obj_at_put(index, initial_value);

  3449     }

  3450   }

  3451   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3452   return ret;

  3453 JNI_END

  3455 #ifndef USDT2

  3456 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3457 #else /* USDT2 */

  3458 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3459                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3460 #endif /* USDT2 */

  3462 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3463   JNIWrapper("GetObjectArrayElement");

  3464 #ifndef USDT2

  3465   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3466 #else /* USDT2 */

  3467  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3468                                          env, array, index);

  3469 #endif /* USDT2 */

  3470   jobject ret = NULL;

  3471   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3472   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3473   if (a->is_within_bounds(index)) {

  3474     ret = JNIHandles::make_local(env, a->obj_at(index));

  3475     return ret;

  3476   } else {

  3477     char buf[jintAsStringSize];

  3478     sprintf(buf, "%d", index);

  3479     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3480   }

  3481 JNI_END

  3483 #ifndef USDT2

  3484 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3485 #else /* USDT2 */

  3486 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3487                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3488 #endif /* USDT2 */

  3490 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3491   JNIWrapper("SetObjectArrayElement");

  3492 #ifndef USDT2

  3493   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3494 #else /* USDT2 */

  3495  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3496                                          env, array, index, value);

  3497 #endif /* USDT2 */

  3498   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3500   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3501   oop v = JNIHandles::resolve(value);

  3502   if (a->is_within_bounds(index)) {

  3503     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3504       a->obj_at_put(index, v);

  3505     } else {

  3506       THROW(vmSymbols::java_lang_ArrayStoreException());

  3507     }

  3508   } else {

  3509     char buf[jintAsStringSize];

  3510     sprintf(buf, "%d", index);

  3511     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3512   }

  3513 JNI_END

  3516 #ifndef USDT2

  3517 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3518 \

  3519   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3520 \

  3521 JNI_ENTRY(Return, \

  3522           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3523   JNIWrapper("New" XSTR(Result) "Array"); \

  3524   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3525   Return ret = NULL;\

  3526   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3527 \

  3528   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3529   ret = (Return) JNIHandles::make_local(env, obj); \

  3530   return ret;\

  3531 JNI_END

  3533 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3534 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3535 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3536 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3537 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3538 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3539 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3540 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3542 #else /* USDT2 */

  3544 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3545                               ,EntryProbe,ReturnProbe)  \

  3546 \

  3547   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3548                       , ReturnProbe); \

  3549 \

  3550 JNI_ENTRY(Return, \

  3551           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3552   JNIWrapper("New" XSTR(Result) "Array"); \

  3553   EntryProbe; \

  3554   Return ret = NULL;\

  3555   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3556 \

  3557   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3558   ret = (Return) JNIHandles::make_local(env, obj); \

  3559   return ret;\

  3560 JNI_END

  3562 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3563                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3564                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3565 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3566                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3567                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3568 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3569                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3570                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3571 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3572                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3573                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3574 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3575                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3576                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3577 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3578                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3579                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3580 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3581                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3582                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3583 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3584                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3585                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3586 #endif /* USDT2 */

  3588 // Return an address which will fault if the caller writes to it.

  3590 static char* get_bad_address() {

  3591   static char* bad_address = NULL;

  3592   if (bad_address == NULL) {

  3593     size_t size = os::vm_allocation_granularity();

  3594     bad_address = os::reserve_memory(size);

  3595     if (bad_address != NULL) {

  3596       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3597                          /*is_committed*/false);

  3598     }

  3599   }

  3600   return bad_address;

  3601 }

  3604 #ifndef USDT2

  3605 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3606 \

  3607 JNI_QUICK_ENTRY(ElementType*, \

  3608           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3609   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3610   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3611   /* allocate an chunk of memory in c land */ \

  3612   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3613   ElementType* result; \

  3614   int len = a->length(); \

  3615   if (len == 0) { \

  3616     /* Empty array: legal but useless, can't return NULL. \

  3617      * Return a pointer to something useless. \

  3618      * Avoid asserts in typeArrayOop. */ \

  3619     result = (ElementType*)get_bad_address(); \

  3620   } else { \

  3621     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3622     /* copy the array to the c chunk */ \

  3623     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3624   } \

  3625   if (isCopy) *isCopy = JNI_TRUE; \

  3626   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3627   return result; \

  3628 JNI_END

  3630 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3631 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3632 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3633 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3634 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3635 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3636 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3637 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3639 #else /* USDT2 */

  3641 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3642                                       , EntryProbe, ReturnProbe) \

  3643 \

  3644 JNI_QUICK_ENTRY(ElementType*, \

  3645           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3646   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3647   EntryProbe; \

  3648   /* allocate an chunk of memory in c land */ \

  3649   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3650   ElementType* result; \

  3651   int len = a->length(); \

  3652   if (len == 0) { \

  3653     /* Empty array: legal but useless, can't return NULL. \

  3654      * Return a pointer to something useless. \

  3655      * Avoid asserts in typeArrayOop. */ \

  3656     result = (ElementType*)get_bad_address(); \

  3657   } else { \

  3658     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3659     /* copy the array to the c chunk */ \

  3660     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3661   } \

  3662   if (isCopy) *isCopy = JNI_TRUE; \

  3663   ReturnProbe; \

  3664   return result; \

  3665 JNI_END

  3667 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3668                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3669                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3670 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3671                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3672                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3673 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3674                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3675                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3676 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3677                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3678                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3679 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3680                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3681                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3682 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3683                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3684                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3685 // Float and double probes don't return value because dtrace doesn't currently support it

  3686 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3687                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3688                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3689 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3690                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3691                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3692 #endif /* USDT2 */

  3694 #ifndef USDT2

  3695 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3696 \

  3697 JNI_QUICK_ENTRY(void, \

  3698           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3699                                              ElementType *buf, jint mode)) \

  3700   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3701   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3702   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3703   int len = a->length(); \

  3704   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3705     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3706       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3707     } \

  3708     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3709       FreeHeap(buf); \

  3710     } \

  3711   } \

  3712   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3713 JNI_END

  3715 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3722 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3724 #else /* USDT2 */

  3726 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3727                                           , EntryProbe, ReturnProbe);\

  3728 \

  3729 JNI_QUICK_ENTRY(void, \

  3730           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3731                                              ElementType *buf, jint mode)) \

  3732   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3733   EntryProbe; \

  3734   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3735   int len = a->length(); \

  3736   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3737     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3738       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3739     } \

  3740     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3741       FreeHeap(buf); \

  3742     } \

  3743   } \

  3744   ReturnProbe; \

  3745 JNI_END

  3747 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3748                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3749                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3750 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3751                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3752                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3753 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3754                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3755                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3756 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3757                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3758                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3759 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3760                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3761                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3762 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3763                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3764                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3765 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3766                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3767                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3768 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3769                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3770                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3771 #endif /* USDT2 */

  3773 #ifndef USDT2

  3774 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3775   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3776 \

  3777 JNI_ENTRY(void, \

  3778 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3779              jsize len, ElementType *buf)) \

  3780   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3781   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3782   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3783   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3784   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3785     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3786   } else { \

  3787     if (len > 0) { \

  3788       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3789       memcpy((u_char*) buf, \

  3790              (u_char*) src->Tag##_at_addr(start), \

  3791              len << sc);                          \

  3792     } \

  3793   } \

  3794 JNI_END

  3796 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3797 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3798 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3799 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3800 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3801 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3802 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3803 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3805 #else /* USDT2 */

  3807 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3808                                     , EntryProbe, ReturnProbe); \

  3809   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3810                            , ReturnProbe); \

  3811 \

  3812 JNI_ENTRY(void, \

  3813 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3814              jsize len, ElementType *buf)) \

  3815   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3816   EntryProbe; \

  3817   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3818   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3819   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3820     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3821   } else { \

  3822     if (len > 0) { \

  3823       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3824       memcpy((u_char*) buf, \

  3825              (u_char*) src->Tag##_at_addr(start), \

  3826              len << sc);                          \

  3827     } \

  3828   } \

  3829 JNI_END

  3831 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3832                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3833                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3834 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3835                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3836                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3837 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3838                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3839                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3840 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3841                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3842                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3843 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3844                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3845                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3846 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3847                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3848                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3849 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3850                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3851                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3852 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3853                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3854                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3855 #endif /* USDT2 */

  3857 #ifndef USDT2

  3858 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3859   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3860 \

  3861 JNI_ENTRY(void, \

  3862 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3863              jsize len, const ElementType *buf)) \

  3864   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3865   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3866   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3867   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3868   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3869     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3870   } else { \

  3871     if (len > 0) { \

  3872       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3873       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3874              (u_char*) buf, \

  3875              len << sc);    \

  3876     } \

  3877   } \

  3878 JNI_END

  3880 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3881 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3882 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3883 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3884 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3885 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3886 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3887 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3889 #else /* USDT2 */

  3891 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3892                                     , EntryProbe, ReturnProbe); \

  3893   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3894                            ,ReturnProbe);           \

  3895 \

  3896 JNI_ENTRY(void, \

  3897 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3898              jsize len, const ElementType *buf)) \

  3899   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3900   EntryProbe; \

  3901   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3902   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3903   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3904     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3905   } else { \

  3906     if (len > 0) { \

  3907       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3908       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3909              (u_char*) buf, \

  3910              len << sc);    \

  3911     } \

  3912   } \

  3913 JNI_END

  3915 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3916                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3917                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3918 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3919                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3920                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3921 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3922                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3923                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3924 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3925                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3926                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3927 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3928                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3929                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3930 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3931                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3932                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3933 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3934                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3935                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3936 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3937                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3938                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3939 #endif /* USDT2 */

  3942 //

  3943 // Interception of natives

  3944 //

  3946 // The RegisterNatives call being attempted tried to register with a method that

  3947 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3948 // to see if the native method is now wrapped with the prefixes.  See the

  3949 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3950 static Method* find_prefixed_native(KlassHandle k,

  3951                                       Symbol* name, Symbol* signature, TRAPS) {

  3952 #if INCLUDE_JVMTI

  3953   ResourceMark rm(THREAD);

  3954   Method* method;

  3955   int name_len = name->utf8_length();

  3956   char* name_str = name->as_utf8();

  3957   int prefix_count;

  3958   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3959   for (int i = 0; i < prefix_count; i++) {

  3960     char* prefix = prefixes[i];

  3961     int prefix_len = (int)strlen(prefix);

  3963     // try adding this prefix to the method name and see if it matches another method name

  3964     int trial_len = name_len + prefix_len;

  3965     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3966     strcpy(trial_name_str, prefix);

  3967     strcat(trial_name_str, name_str);

  3968     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3969     if (trial_name == NULL) {

  3970       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3971     }

  3972     method = k()->lookup_method(trial_name, signature);

  3973     if (method == NULL) {

  3974       continue; // signature doesn't match, try the next prefix

  3975     }

  3976     if (method->is_native()) {

  3977       method->set_is_prefixed_native();

  3978       return method; // wahoo, we found a prefixed version of the method, return it

  3979     }

  3980     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3981     name_len = trial_len;

  3982     name_str = trial_name_str;

  3983   }

  3984 #endif // INCLUDE_JVMTI

  3985   return NULL; // not found

  3986 }

  3988 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3989   Method* method = k()->lookup_method(name, signature);

  3990   if (method == NULL) {

  3991     ResourceMark rm;

  3992     stringStream st;

  3993     st.print("Method %s name or signature does not match",

  3994              Method::name_and_sig_as_C_string(k(), name, signature));

  3995     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3996   }

  3997   if (!method->is_native()) {

  3998     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  3999     method = find_prefixed_native(k, name, signature, THREAD);

  4000     if (method == NULL) {

  4001       ResourceMark rm;

  4002       stringStream st;

  4003       st.print("Method %s is not declared as native",

  4004                Method::name_and_sig_as_C_string(k(), name, signature));

  4005       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4006     }

  4007   }

  4009   if (entry != NULL) {

  4010     method->set_native_function(entry,

  4011       Method::native_bind_event_is_interesting);

  4012   } else {

  4013     method->clear_native_function();

  4014   }

  4015   if (PrintJNIResolving) {

  4016     ResourceMark rm(THREAD);

  4017     tty->print_cr("[Registering JNI native method %s.%s]",

  4018       method->method_holder()->external_name(),

  4019       method->name()->as_C_string());

  4020   }

  4021   return true;

  4022 }

  4024 #ifndef USDT2

  4025 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4026 #else /* USDT2 */

  4027 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4028                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4029 #endif /* USDT2 */

  4031 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4032                                     const JNINativeMethod *methods,

  4033                                     jint nMethods))

  4034   JNIWrapper("RegisterNatives");

  4035 #ifndef USDT2

  4036   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4037 #else /* USDT2 */

  4038   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4039                                     env, clazz, (void *) methods, nMethods);

  4040 #endif /* USDT2 */

  4041   jint ret = 0;

  4042   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4044   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4046   for (int index = 0; index < nMethods; index++) {

  4047     const char* meth_name = methods[index].name;

  4048     const char* meth_sig = methods[index].signature;

  4049     int meth_name_len = (int)strlen(meth_name);

  4051     // The class should have been loaded (we have an instance of the class

  4052     // passed in) so the method and signature should already be in the symbol

  4053     // table.  If they're not there, the method doesn't exist.

  4054     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4055     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4057     if (name == NULL || signature == NULL) {

  4058       ResourceMark rm;

  4059       stringStream st;

  4060       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4061       // Must return negative value on failure

  4062       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4063     }

  4065     bool res = register_native(h_k, name, signature,

  4066                                (address) methods[index].fnPtr, THREAD);

  4067     if (!res) {

  4068       ret = -1;

  4069       break;

  4070     }

  4071   }

  4072   return ret;

  4073 JNI_END

  4076 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4077   JNIWrapper("UnregisterNatives");

  4078 #ifndef USDT2

  4079   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4080 #else /* USDT2 */

  4081  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4082                                      env, clazz);

  4083 #endif /* USDT2 */

  4084   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4085   //%note jni_2

  4086   if (k->oop_is_instance()) {

  4087     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4088       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4089       if (m->is_native()) {

  4090         m->clear_native_function();

  4091         m->set_signature_handler(NULL);

  4092       }

  4093     }

  4094   }

  4095 #ifndef USDT2

  4096   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4097 #else /* USDT2 */

  4098  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4099                                       0);

  4100 #endif /* USDT2 */

  4101   return 0;

  4102 JNI_END

  4104 //

  4105 // Monitor functions

  4106 //

  4108 #ifndef USDT2

  4109 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4110 #else /* USDT2 */

  4111 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4112                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4113 #endif /* USDT2 */

  4115 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4116 #ifndef USDT2

  4117   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4118 #else /* USDT2 */

  4119  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4120                                 env, jobj);

  4121 #endif /* USDT2 */

  4122   jint ret = JNI_ERR;

  4123   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4125   // If the object is null, we can't do anything with it

  4126   if (jobj == NULL) {

  4127     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4128   }

  4130   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4131   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4132   ret = JNI_OK;

  4133   return ret;

  4134 JNI_END

  4136 #ifndef USDT2

  4137 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4138 #else /* USDT2 */

  4139 DT_RETURN_MARK_DECL(MonitorExit, jint

  4140                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4141 #endif /* USDT2 */

  4143 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4144 #ifndef USDT2

  4145   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4146 #else /* USDT2 */

  4147  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4148                                env, jobj);

  4149 #endif /* USDT2 */

  4150   jint ret = JNI_ERR;

  4151   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4153   // Don't do anything with a null object

  4154   if (jobj == NULL) {

  4155     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4156   }

  4158   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4159   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4161   ret = JNI_OK;

  4162   return ret;

  4163 JNI_END

  4165 //

  4166 // Extensions

  4167 //

  4169 #ifndef USDT2

  4170 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4171 #else /* USDT2 */

  4172 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4173                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4174 #endif /* USDT2 */

  4176 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4177   JNIWrapper("GetStringRegion");

  4178 #ifndef USDT2

  4179   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4180 #else /* USDT2 */

  4181  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4182                                    env, string, start, len, buf);

  4183 #endif /* USDT2 */

  4184   DT_VOID_RETURN_MARK(GetStringRegion);

  4185   oop s = JNIHandles::resolve_non_null(string);

  4186   int s_len = java_lang_String::length(s);

  4187   if (start < 0 || len < 0 || start + len > s_len) {

  4188     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4189   } else {

  4190     if (len > 0) {

  4191       int s_offset = java_lang_String::offset(s);

  4192       typeArrayOop s_value = java_lang_String::value(s);

  4193       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4194     }

  4195   }

  4196 JNI_END

  4198 #ifndef USDT2

  4199 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4200 #else /* USDT2 */

  4201 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4202                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4203 #endif /* USDT2 */

  4205 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4206   JNIWrapper("GetStringUTFRegion");

  4207 #ifndef USDT2

  4208   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4209 #else /* USDT2 */

  4210  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4211                                       env, string, start, len, buf);

  4212 #endif /* USDT2 */

  4213   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4214   oop s = JNIHandles::resolve_non_null(string);

  4215   int s_len = java_lang_String::length(s);

  4216   if (start < 0 || len < 0 || start + len > s_len) {

  4217     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4218   } else {

  4219     //%note jni_7

  4220     if (len > 0) {

  4221       ResourceMark rm(THREAD);

  4222       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4223       int utf_len = (int)strlen(utf_region);

  4224       memcpy(buf, utf_region, utf_len);

  4225       buf[utf_len] = 0;

  4226     } else {

  4227       // JDK null-terminates the buffer even in len is zero

  4228       if (buf != NULL) {

  4229         buf[0] = 0;

  4230       }

  4231     }

  4232   }

  4233 JNI_END

  4236 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4237   JNIWrapper("GetPrimitiveArrayCritical");

  4238 #ifndef USDT2

  4239   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4240 #else /* USDT2 */

  4241  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4242                                              env, array, (uintptr_t *) isCopy);

  4243 #endif /* USDT2 */

  4244   GC_locker::lock_critical(thread);

  4245   if (isCopy != NULL) {

  4246     *isCopy = JNI_FALSE;

  4247   }

  4248   oop a = JNIHandles::resolve_non_null(array);

  4249   assert(a->is_array(), "just checking");

  4250   BasicType type;

  4251   if (a->is_objArray()) {

  4252     type = T_OBJECT;

  4253   } else {

  4254     type = TypeArrayKlass::cast(a->klass())->element_type();

  4255   }

  4256   void* ret = arrayOop(a)->base(type);

  4257 #ifndef USDT2

  4258   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4259 #else /* USDT2 */

  4260  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4261                                               ret);

  4262 #endif /* USDT2 */

  4263   return ret;

  4264 JNI_END

  4267 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4268   JNIWrapper("ReleasePrimitiveArrayCritical");

  4269 #ifndef USDT2

  4270   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4271 #else /* USDT2 */

  4272   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4273                                                   env, array, carray, mode);

  4274 #endif /* USDT2 */

  4275   // The array, carray and mode arguments are ignored

  4276   GC_locker::unlock_critical(thread);

  4277 #ifndef USDT2

  4278   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4279 #else /* USDT2 */

  4280 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4281 );

  4282 #endif /* USDT2 */

  4283 JNI_END

  4286 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4287   JNIWrapper("GetStringCritical");

  4288 #ifndef USDT2

  4289   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4290 #else /* USDT2 */

  4291   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4292                                       env, string, (uintptr_t *) isCopy);

  4293 #endif /* USDT2 */

  4294   GC_locker::lock_critical(thread);

  4295   if (isCopy != NULL) {

  4296     *isCopy = JNI_FALSE;

  4297   }

  4298   oop s = JNIHandles::resolve_non_null(string);

  4299   int s_len = java_lang_String::length(s);

  4300   typeArrayOop s_value = java_lang_String::value(s);

  4301   int s_offset = java_lang_String::offset(s);

  4302   const jchar* ret;

  4303   if (s_len > 0) {

  4304     ret = s_value->char_at_addr(s_offset);

  4305   } else {

  4306     ret = (jchar*) s_value->base(T_CHAR);

  4307   }

  4308 #ifndef USDT2

  4309   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4310 #else /* USDT2 */

  4311  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4312                                       (uint16_t *) ret);

  4313 #endif /* USDT2 */

  4314   return ret;

  4315 JNI_END

  4318 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4319   JNIWrapper("ReleaseStringCritical");

  4320 #ifndef USDT2

  4321   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4322 #else /* USDT2 */

  4323   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4324                                           env, str, (uint16_t *) chars);

  4325 #endif /* USDT2 */

  4326   // The str and chars arguments are ignored

  4327   GC_locker::unlock_critical(thread);

  4328 #ifndef USDT2

  4329   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4330 #else /* USDT2 */

  4331 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4332 );

  4333 #endif /* USDT2 */

  4334 JNI_END

  4337 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4338   JNIWrapper("jni_NewWeakGlobalRef");

  4339 #ifndef USDT2

  4340   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4341 #else /* USDT2 */

  4342  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4343                                     env, ref);

  4344 #endif /* USDT2 */

  4345   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4346   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4347 #ifndef USDT2

  4348   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4349 #else /* USDT2 */

  4350  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4351                                      ret);

  4352 #endif /* USDT2 */

  4353   return ret;

  4354 JNI_END

  4356 // Must be JNI_ENTRY (with HandleMark)

  4357 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4358   JNIWrapper("jni_DeleteWeakGlobalRef");

  4359 #ifndef USDT2

  4360   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4361 #else /* USDT2 */

  4362   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4363                                         env, ref);

  4364 #endif /* USDT2 */

  4365   JNIHandles::destroy_weak_global(ref);

  4366 #ifndef USDT2

  4367   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4368 #else /* USDT2 */

  4369   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4370                                          );

  4371 #endif /* USDT2 */

  4372 JNI_END

  4375 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4376   JNIWrapper("jni_ExceptionCheck");

  4377 #ifndef USDT2

  4378   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4379 #else /* USDT2 */

  4380  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4381                                   env);

  4382 #endif /* USDT2 */

  4383   jni_check_async_exceptions(thread);

  4384   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4385 #ifndef USDT2

  4386   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4387 #else /* USDT2 */

  4388  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4389                                    ret);

  4390 #endif /* USDT2 */

  4391   return ret;

  4392 JNI_END

  4395 // Initialization state for three routines below relating to

  4396 // java.nio.DirectBuffers

  4397 static          jint directBufferSupportInitializeStarted = 0;

  4398 static volatile jint directBufferSupportInitializeEnded   = 0;

  4399 static volatile jint directBufferSupportInitializeFailed  = 0;

  4400 static jclass    bufferClass                 = NULL;

  4401 static jclass    directBufferClass           = NULL;

  4402 static jclass    directByteBufferClass       = NULL;

  4403 static jmethodID directByteBufferConstructor = NULL;

  4404 static jfieldID  directBufferAddressField    = NULL;

  4405 static jfieldID  bufferCapacityField         = NULL;

  4407 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4408   Handle loader;            // null (bootstrap) loader

  4409   Handle protection_domain; // null protection domain

  4411   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4412   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4414   if (TraceClassResolution && result != NULL) {

  4415     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4416   }

  4417   return result;

  4418 }

  4420 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4421 // circumvent any security checks that would be done by jni_FindClass.

  4422 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4423 {

  4424   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4425   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4426   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4427   return true;

  4428 }

  4429 JNI_END

  4432 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4433   if (directBufferSupportInitializeFailed) {

  4434     return false;

  4435   }

  4437   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4438     if (!lookupDirectBufferClasses(env)) {

  4439       directBufferSupportInitializeFailed = 1;

  4440       return false;

  4441     }

  4443     // Make global references for these

  4444     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4445     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4446     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4448     // Get needed field and method IDs

  4449     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4450     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4451     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4453     if ((directByteBufferConstructor == NULL) ||

  4454         (directBufferAddressField    == NULL) ||

  4455         (bufferCapacityField         == NULL)) {

  4456       directBufferSupportInitializeFailed = 1;

  4457       return false;

  4458     }

  4460     directBufferSupportInitializeEnded = 1;

  4461   } else {

  4462     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4463       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4464       // os::sleep which requires the VM state transition. On other platforms, it

  4465       // is not necessary. The following call to change the VM state is purposely

  4466       // put inside the loop to avoid potential deadlock when multiple threads

  4467       // try to call this method. See 6791815 for more details.

  4468       ThreadInVMfromNative tivn(thread);

  4469       os::yield_all();

  4470     }

  4471   }

  4473   return !directBufferSupportInitializeFailed;

  4474 }

  4476 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4477 {

  4478   // thread_from_jni_environment() will block if VM is gone.

  4479   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4481   JNIWrapper("jni_NewDirectByteBuffer");

  4482 #ifndef USDT2

  4483   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4484 #else /* USDT2 */

  4485  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4486                                        env, address, capacity);

  4487 #endif /* USDT2 */

  4489   if (!directBufferSupportInitializeEnded) {

  4490     if (!initializeDirectBufferSupport(env, thread)) {

  4491 #ifndef USDT2

  4492       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4493 #else /* USDT2 */

  4494       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4495                                              NULL);

  4496 #endif /* USDT2 */

  4497       return NULL;

  4498     }

  4499   }

  4501   // Being paranoid about accidental sign extension on address

  4502   jlong addr = (jlong) ((uintptr_t) address);

  4503   // NOTE that package-private DirectByteBuffer constructor currently

  4504   // takes int capacity

  4505   jint  cap  = (jint)  capacity;

  4506   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4507 #ifndef USDT2

  4508   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4509 #else /* USDT2 */

  4510   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4511                                          ret);

  4512 #endif /* USDT2 */

  4513   return ret;

  4514 }

  4516 #ifndef USDT2

  4517 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4518 #else /* USDT2 */

  4519 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4520                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4521 #endif /* USDT2 */

  4523 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4524 {

  4525   // thread_from_jni_environment() will block if VM is gone.

  4526   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4528   JNIWrapper("jni_GetDirectBufferAddress");

  4529 #ifndef USDT2

  4530   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4531 #else /* USDT2 */

  4532   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4533                                            env, buf);

  4534 #endif /* USDT2 */

  4535   void* ret = NULL;

  4536   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4538   if (!directBufferSupportInitializeEnded) {

  4539     if (!initializeDirectBufferSupport(env, thread)) {

  4540       return 0;

  4541     }

  4542   }

  4544   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4545     return 0;

  4546   }

  4548   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4549   return ret;

  4550 }

  4552 #ifndef USDT2

  4553 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4554 #else /* USDT2 */

  4555 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4556                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4557 #endif /* USDT2 */

  4559 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4560 {

  4561   // thread_from_jni_environment() will block if VM is gone.

  4562   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4564   JNIWrapper("jni_GetDirectBufferCapacity");

  4565 #ifndef USDT2

  4566   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4567 #else /* USDT2 */

  4568   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4569                                             env, buf);

  4570 #endif /* USDT2 */

  4571   jlong ret = -1;

  4572   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4574   if (!directBufferSupportInitializeEnded) {

  4575     if (!initializeDirectBufferSupport(env, thread)) {

  4576       ret = 0;

  4577       return ret;

  4578     }

  4579   }

  4581   if (buf == NULL) {

  4582     return -1;

  4583   }

  4585   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4586     return -1;

  4587   }

  4589   // NOTE that capacity is currently an int in the implementation

  4590   ret = env->GetIntField(buf, bufferCapacityField);

  4591   return ret;

  4592 }

  4595 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4596   JNIWrapper("GetVersion");

  4597 #ifndef USDT2

  4598   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4599 #else /* USDT2 */

  4600   HOTSPOT_JNI_GETVERSION_ENTRY(

  4601                                env);

  4602 #endif /* USDT2 */

  4603 #ifndef USDT2

  4604   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4605 #else /* USDT2 */

  4606   HOTSPOT_JNI_GETVERSION_RETURN(

  4607                                 CurrentVersion);

  4608 #endif /* USDT2 */

  4609   return CurrentVersion;

  4610 JNI_END

  4612 extern struct JavaVM_ main_vm;

  4614 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4615   JNIWrapper("jni_GetJavaVM");

  4616 #ifndef USDT2

  4617   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4618 #else /* USDT2 */

  4619   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4620                               env, (void **) vm);

  4621 #endif /* USDT2 */

  4622   *vm  = (JavaVM *)(&main_vm);

  4623 #ifndef USDT2

  4624   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4625 #else /* USDT2 */

  4626   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4627                                JNI_OK);

  4628 #endif /* USDT2 */

  4629   return JNI_OK;

  4630 JNI_END

  4632 // Structure containing all jni functions

  4633 struct JNINativeInterface_ jni_NativeInterface = {

  4634     NULL,

  4635     NULL,

  4636     NULL,

  4638     NULL,

  4640     jni_GetVersion,

  4642     jni_DefineClass,

  4643     jni_FindClass,

  4645     jni_FromReflectedMethod,

  4646     jni_FromReflectedField,

  4648     jni_ToReflectedMethod,

  4650     jni_GetSuperclass,

  4651     jni_IsAssignableFrom,

  4653     jni_ToReflectedField,

  4655     jni_Throw,

  4656     jni_ThrowNew,

  4657     jni_ExceptionOccurred,

  4658     jni_ExceptionDescribe,

  4659     jni_ExceptionClear,

  4660     jni_FatalError,

  4662     jni_PushLocalFrame,

  4663     jni_PopLocalFrame,

  4665     jni_NewGlobalRef,

  4666     jni_DeleteGlobalRef,

  4667     jni_DeleteLocalRef,

  4668     jni_IsSameObject,

  4670     jni_NewLocalRef,

  4671     jni_EnsureLocalCapacity,

  4673     jni_AllocObject,

  4674     jni_NewObject,

  4675     jni_NewObjectV,

  4676     jni_NewObjectA,

  4678     jni_GetObjectClass,

  4679     jni_IsInstanceOf,

  4681     jni_GetMethodID,

  4683     jni_CallObjectMethod,

  4684     jni_CallObjectMethodV,

  4685     jni_CallObjectMethodA,

  4686     jni_CallBooleanMethod,

  4687     jni_CallBooleanMethodV,

  4688     jni_CallBooleanMethodA,

  4689     jni_CallByteMethod,

  4690     jni_CallByteMethodV,

  4691     jni_CallByteMethodA,

  4692     jni_CallCharMethod,

  4693     jni_CallCharMethodV,

  4694     jni_CallCharMethodA,

  4695     jni_CallShortMethod,

  4696     jni_CallShortMethodV,

  4697     jni_CallShortMethodA,

  4698     jni_CallIntMethod,

  4699     jni_CallIntMethodV,

  4700     jni_CallIntMethodA,

  4701     jni_CallLongMethod,

  4702     jni_CallLongMethodV,

  4703     jni_CallLongMethodA,

  4704     jni_CallFloatMethod,

  4705     jni_CallFloatMethodV,

  4706     jni_CallFloatMethodA,

  4707     jni_CallDoubleMethod,

  4708     jni_CallDoubleMethodV,

  4709     jni_CallDoubleMethodA,

  4710     jni_CallVoidMethod,

  4711     jni_CallVoidMethodV,

  4712     jni_CallVoidMethodA,

  4714     jni_CallNonvirtualObjectMethod,

  4715     jni_CallNonvirtualObjectMethodV,

  4716     jni_CallNonvirtualObjectMethodA,

  4717     jni_CallNonvirtualBooleanMethod,

  4718     jni_CallNonvirtualBooleanMethodV,

  4719     jni_CallNonvirtualBooleanMethodA,

  4720     jni_CallNonvirtualByteMethod,

  4721     jni_CallNonvirtualByteMethodV,

  4722     jni_CallNonvirtualByteMethodA,

  4723     jni_CallNonvirtualCharMethod,

  4724     jni_CallNonvirtualCharMethodV,

  4725     jni_CallNonvirtualCharMethodA,

  4726     jni_CallNonvirtualShortMethod,

  4727     jni_CallNonvirtualShortMethodV,

  4728     jni_CallNonvirtualShortMethodA,

  4729     jni_CallNonvirtualIntMethod,

  4730     jni_CallNonvirtualIntMethodV,

  4731     jni_CallNonvirtualIntMethodA,

  4732     jni_CallNonvirtualLongMethod,

  4733     jni_CallNonvirtualLongMethodV,

  4734     jni_CallNonvirtualLongMethodA,

  4735     jni_CallNonvirtualFloatMethod,

  4736     jni_CallNonvirtualFloatMethodV,

  4737     jni_CallNonvirtualFloatMethodA,

  4738     jni_CallNonvirtualDoubleMethod,

  4739     jni_CallNonvirtualDoubleMethodV,

  4740     jni_CallNonvirtualDoubleMethodA,

  4741     jni_CallNonvirtualVoidMethod,

  4742     jni_CallNonvirtualVoidMethodV,

  4743     jni_CallNonvirtualVoidMethodA,

  4745     jni_GetFieldID,

  4747     jni_GetObjectField,

  4748     jni_GetBooleanField,

  4749     jni_GetByteField,

  4750     jni_GetCharField,

  4751     jni_GetShortField,

  4752     jni_GetIntField,

  4753     jni_GetLongField,

  4754     jni_GetFloatField,

  4755     jni_GetDoubleField,

  4757     jni_SetObjectField,

  4758     jni_SetBooleanField,

  4759     jni_SetByteField,

  4760     jni_SetCharField,

  4761     jni_SetShortField,

  4762     jni_SetIntField,

  4763     jni_SetLongField,

  4764     jni_SetFloatField,

  4765     jni_SetDoubleField,

  4767     jni_GetStaticMethodID,

  4769     jni_CallStaticObjectMethod,

  4770     jni_CallStaticObjectMethodV,

  4771     jni_CallStaticObjectMethodA,

  4772     jni_CallStaticBooleanMethod,

  4773     jni_CallStaticBooleanMethodV,

  4774     jni_CallStaticBooleanMethodA,

  4775     jni_CallStaticByteMethod,

  4776     jni_CallStaticByteMethodV,

  4777     jni_CallStaticByteMethodA,

  4778     jni_CallStaticCharMethod,

  4779     jni_CallStaticCharMethodV,

  4780     jni_CallStaticCharMethodA,

  4781     jni_CallStaticShortMethod,

  4782     jni_CallStaticShortMethodV,

  4783     jni_CallStaticShortMethodA,

  4784     jni_CallStaticIntMethod,

  4785     jni_CallStaticIntMethodV,

  4786     jni_CallStaticIntMethodA,

  4787     jni_CallStaticLongMethod,

  4788     jni_CallStaticLongMethodV,

  4789     jni_CallStaticLongMethodA,

  4790     jni_CallStaticFloatMethod,

  4791     jni_CallStaticFloatMethodV,

  4792     jni_CallStaticFloatMethodA,

  4793     jni_CallStaticDoubleMethod,

  4794     jni_CallStaticDoubleMethodV,

  4795     jni_CallStaticDoubleMethodA,

  4796     jni_CallStaticVoidMethod,

  4797     jni_CallStaticVoidMethodV,

  4798     jni_CallStaticVoidMethodA,

  4800     jni_GetStaticFieldID,

  4802     jni_GetStaticObjectField,

  4803     jni_GetStaticBooleanField,

  4804     jni_GetStaticByteField,

  4805     jni_GetStaticCharField,

  4806     jni_GetStaticShortField,

  4807     jni_GetStaticIntField,

  4808     jni_GetStaticLongField,

  4809     jni_GetStaticFloatField,

  4810     jni_GetStaticDoubleField,

  4812     jni_SetStaticObjectField,

  4813     jni_SetStaticBooleanField,

  4814     jni_SetStaticByteField,

  4815     jni_SetStaticCharField,

  4816     jni_SetStaticShortField,

  4817     jni_SetStaticIntField,

  4818     jni_SetStaticLongField,

  4819     jni_SetStaticFloatField,

  4820     jni_SetStaticDoubleField,

  4822     jni_NewString,

  4823     jni_GetStringLength,

  4824     jni_GetStringChars,

  4825     jni_ReleaseStringChars,

  4827     jni_NewStringUTF,

  4828     jni_GetStringUTFLength,

  4829     jni_GetStringUTFChars,

  4830     jni_ReleaseStringUTFChars,

  4832     jni_GetArrayLength,

  4834     jni_NewObjectArray,

  4835     jni_GetObjectArrayElement,

  4836     jni_SetObjectArrayElement,

  4838     jni_NewBooleanArray,

  4839     jni_NewByteArray,

  4840     jni_NewCharArray,

  4841     jni_NewShortArray,

  4842     jni_NewIntArray,

  4843     jni_NewLongArray,

  4844     jni_NewFloatArray,

  4845     jni_NewDoubleArray,

  4847     jni_GetBooleanArrayElements,

  4848     jni_GetByteArrayElements,

  4849     jni_GetCharArrayElements,

  4850     jni_GetShortArrayElements,

  4851     jni_GetIntArrayElements,

  4852     jni_GetLongArrayElements,

  4853     jni_GetFloatArrayElements,

  4854     jni_GetDoubleArrayElements,

  4856     jni_ReleaseBooleanArrayElements,

  4857     jni_ReleaseByteArrayElements,

  4858     jni_ReleaseCharArrayElements,

  4859     jni_ReleaseShortArrayElements,

  4860     jni_ReleaseIntArrayElements,

  4861     jni_ReleaseLongArrayElements,

  4862     jni_ReleaseFloatArrayElements,

  4863     jni_ReleaseDoubleArrayElements,

  4865     jni_GetBooleanArrayRegion,

  4866     jni_GetByteArrayRegion,

  4867     jni_GetCharArrayRegion,

  4868     jni_GetShortArrayRegion,

  4869     jni_GetIntArrayRegion,

  4870     jni_GetLongArrayRegion,

  4871     jni_GetFloatArrayRegion,

  4872     jni_GetDoubleArrayRegion,

  4874     jni_SetBooleanArrayRegion,

  4875     jni_SetByteArrayRegion,

  4876     jni_SetCharArrayRegion,

  4877     jni_SetShortArrayRegion,

  4878     jni_SetIntArrayRegion,

  4879     jni_SetLongArrayRegion,

  4880     jni_SetFloatArrayRegion,

  4881     jni_SetDoubleArrayRegion,

  4883     jni_RegisterNatives,

  4884     jni_UnregisterNatives,

  4886     jni_MonitorEnter,

  4887     jni_MonitorExit,

  4889     jni_GetJavaVM,

  4891     jni_GetStringRegion,

  4892     jni_GetStringUTFRegion,

  4894     jni_GetPrimitiveArrayCritical,

  4895     jni_ReleasePrimitiveArrayCritical,

  4897     jni_GetStringCritical,

  4898     jni_ReleaseStringCritical,

  4900     jni_NewWeakGlobalRef,

  4901     jni_DeleteWeakGlobalRef,

  4903     jni_ExceptionCheck,

  4905     jni_NewDirectByteBuffer,

  4906     jni_GetDirectBufferAddress,

  4907     jni_GetDirectBufferCapacity,

  4909     // New 1_6 features

  4911     jni_GetObjectRefType

  4912 };

  4915 // For jvmti use to modify jni function table.

  4916 // Java threads in native contiues to run until it is transitioned

  4917 // to VM at safepoint. Before the transition or before it is blocked

  4918 // for safepoint it may access jni function table. VM could crash if

  4919 // any java thread access the jni function table in the middle of memcpy.

  4920 // To avoid this each function pointers are copied automically.

  4921 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4922   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4923   intptr_t *a = (intptr_t *) jni_functions();

  4924   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4925   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4926     Atomic::store_ptr(*b++, a++);

  4927   }

  4928 }

  4930 void quicken_jni_functions() {

  4931   // Replace Get<Primitive>Field with fast versions

  4932   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4933       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4934 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4935       // windows x86 currently needs SEH wrapper and the gain of the fast

  4936       // versions currently isn't certain for server vm on uniprocessor.

  4937       && os::is_MP()

  4938 #endif

  4939   ) {

  4940     address func;

  4941     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4942     if (func != (address)-1) {

  4943       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4944     }

  4945     func = JNI_FastGetField::generate_fast_get_byte_field();

  4946     if (func != (address)-1) {

  4947       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4948     }

  4949     func = JNI_FastGetField::generate_fast_get_char_field();

  4950     if (func != (address)-1) {

  4951       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4952     }

  4953     func = JNI_FastGetField::generate_fast_get_short_field();

  4954     if (func != (address)-1) {

  4955       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4956     }

  4957     func = JNI_FastGetField::generate_fast_get_int_field();

  4958     if (func != (address)-1) {

  4959       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4960     }

  4961     func = JNI_FastGetField::generate_fast_get_long_field();

  4962     if (func != (address)-1) {

  4963       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4964     }

  4965     func = JNI_FastGetField::generate_fast_get_float_field();

  4966     if (func != (address)-1) {

  4967       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4968     }

  4969     func = JNI_FastGetField::generate_fast_get_double_field();

  4970     if (func != (address)-1) {

  4971       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4972     }

  4973   }

  4974 }

  4976 // Returns the function structure

  4977 struct JNINativeInterface_* jni_functions() {

  4978 #if INCLUDE_JNI_CHECK

  4979   if (CheckJNICalls) return jni_functions_check();

  4980 #endif // INCLUDE_JNI_CHECK

  4981   return &jni_NativeInterface;

  4982 }

  4984 // Returns the function structure

  4985 struct JNINativeInterface_* jni_functions_nocheck() {

  4986   return &jni_NativeInterface;

  4987 }

  4990 // Invocation API

  4993 // Forward declaration

  4994 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  4996 // Global invocation API vars

  4997 volatile jint vm_created = 0;

  4998 // Indicate whether it is safe to recreate VM

  4999 volatile jint safe_to_recreate_vm = 1;

  5000 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5003 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5004 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5006 #ifndef USDT2

  5007 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5008 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5009 #else /* USDT2 */

  5010 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5011                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5012 #endif /* USDT2 */

  5014 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5015 #ifndef USDT2

  5016   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5017 #else /* USDT2 */

  5018   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5019                                              args_);

  5020 #endif /* USDT2 */

  5021   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5022   jint ret = JNI_ERR;

  5023   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5025   if (Threads::is_supported_jni_version(args->version)) {

  5026     ret = JNI_OK;

  5027   }

  5028   // 1.1 style no longer supported in hotspot.

  5029   // According the JNI spec, we should update args->version on return.

  5030   // We also use the structure to communicate with launcher about default

  5031   // stack size.

  5032   if (args->version == JNI_VERSION_1_1) {

  5033     args->version = JNI_VERSION_1_2;

  5034     // javaStackSize is int in arguments structure

  5035     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5036     args->javaStackSize = (jint)(ThreadStackSize * K);

  5037   }

  5038   return ret;

  5039 }

  5041 #ifndef PRODUCT

  5043 #include "gc_interface/collectedHeap.hpp"

  5044 #include "utilities/quickSort.hpp"

  5045 #if INCLUDE_VM_STRUCTS

  5046 #include "runtime/vmStructs.hpp"

  5047 #endif

  5049 #define run_unit_test(unit_test_function_call)              \

  5050   tty->print_cr("Running test: " #unit_test_function_call); \

  5051   unit_test_function_call

  5053 void execute_internal_vm_tests() {

  5054   if (ExecuteInternalVMTests) {

  5055     tty->print_cr("Running internal VM tests");

  5056     run_unit_test(arrayOopDesc::test_max_array_length());

  5057     run_unit_test(CollectedHeap::test_is_in());

  5058     run_unit_test(QuickSort::test_quick_sort());

  5059     run_unit_test(AltHashing::test_alt_hash());

  5060 #if INCLUDE_VM_STRUCTS

  5061     run_unit_test(VMStructs::test());

  5062 #endif

  5063     tty->print_cr("All internal VM tests passed");

  5064   }

  5065 }

  5067 #undef run_unit_test

  5069 #endif

  5071 #ifndef USDT2

  5072 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5073 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5074 #else /* USDT2 */

  5075 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5076                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5077 #endif /* USDT2 */

  5079 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5080 #ifndef USDT2

  5081   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5082 #else /* USDT2 */

  5083   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5084                                  (void **) vm, penv, args);

  5085 #endif /* USDT2 */

  5087   jint result = JNI_ERR;

  5088   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5090   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5091   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5092   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5093   // on all architectures.  So we check it works before relying on it.

  5094 #if defined(ZERO) && defined(ASSERT)

  5095   {

  5096     jint a = 0xcafebabe;

  5097     jint b = Atomic::xchg(0xdeadbeef, &a);

  5098     void *c = &a;

  5099     void *d = Atomic::xchg_ptr(&b, &c);

  5100     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5101     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5102   }

  5103 #endif // ZERO && ASSERT

  5105   // At the moment it's only possible to have one Java VM,

  5106   // since some of the runtime state is in global variables.

  5108   // We cannot use our mutex locks here, since they only work on

  5109   // Threads. We do an atomic compare and exchange to ensure only

  5110   // one thread can call this method at a time

  5112   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5113   // the add/dec implementations are dependent on whether we are running

  5114   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5115   // function used to determine this will always return false. Atomic::xchg

  5116   // does not have this problem.

  5117   if (Atomic::xchg(1, &vm_created) == 1) {

  5118     return JNI_ERR;   // already created, or create attempt in progress

  5119   }

  5120   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5121     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5122   }

  5124   assert(vm_created == 1, "vm_created is true during the creation");

  5126   /**

  5127    * Certain errors during initialization are recoverable and do not

  5128    * prevent this method from being called again at a later time

  5129    * (perhaps with different arguments).  However, at a certain

  5130    * point during initialization if an error occurs we cannot allow

  5131    * this function to be called again (or it will crash).  In those

  5132    * situations, the 'canTryAgain' flag is set to false, which atomically

  5133    * sets safe_to_recreate_vm to 1, such that any new call to

  5134    * JNI_CreateJavaVM will immediately fail using the above logic.

  5135    */

  5136   bool can_try_again = true;

  5138   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5139   if (result == JNI_OK) {

  5140     JavaThread *thread = JavaThread::current();

  5141     /* thread is thread_in_vm here */

  5142     *vm = (JavaVM *)(&main_vm);

  5143     *(JNIEnv**)penv = thread->jni_environment();

  5145     // Tracks the time application was running before GC

  5146     RuntimeService::record_application_start();

  5148     // Notify JVMTI

  5149     if (JvmtiExport::should_post_thread_life()) {

  5150        JvmtiExport::post_thread_start(thread);

  5151     }

  5153     EVENT_BEGIN(TraceEventThreadStart, event);

  5154     EVENT_COMMIT(event,

  5155         EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5157     // Check if we should compile all classes on bootclasspath

  5158     NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();)

  5159     NOT_PRODUCT(if (ReplayCompiles) ciReplay::replay(thread);)

  5160     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5161     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5162   } else {

  5163     if (can_try_again) {

  5164       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5165       safe_to_recreate_vm = 1;

  5166     }

  5168     // Creation failed. We must reset vm_created

  5169     *vm = 0;

  5170     *(JNIEnv**)penv = 0;

  5171     // reset vm_created last to avoid race condition. Use OrderAccess to

  5172     // control both compiler and architectural-based reordering.

  5173     OrderAccess::release_store(&vm_created, 0);

  5174   }

  5176   NOT_PRODUCT(test_error_handler(ErrorHandlerTest));

  5177   NOT_PRODUCT(execute_internal_vm_tests());

  5178   return result;

  5179 }

  5181 #ifndef USDT2

  5182 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5183   JavaVM**, jsize, jsize*);

  5184 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5185 #endif /* !USDT2 */

  5187 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5188   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5189   // JNIWrapper("GetCreatedJavaVMs");

  5190 #ifndef USDT2

  5191   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5192     vm_buf, bufLen, numVMs);

  5193 #else /* USDT2 */

  5194   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5195                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5196 #endif /* USDT2 */

  5197   if (vm_created) {

  5198     if (numVMs != NULL) *numVMs = 1;

  5199     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5200   } else {

  5201     if (numVMs != NULL) *numVMs = 0;

  5202   }

  5203 #ifndef USDT2

  5204   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5205 #else /* USDT2 */

  5206   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5207                                     JNI_OK);

  5208 #endif /* USDT2 */

  5209   return JNI_OK;

  5210 }

  5212 extern "C" {

  5214 #ifndef USDT2

  5215 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5216 #else /* USDT2 */

  5217 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5218                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5219 #endif /* USDT2 */

  5221 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5222 #ifndef USDT2

  5223   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5224 #else /* USDT2 */

  5225   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5226                                   vm);

  5227 #endif /* USDT2 */

  5228   jint res = JNI_ERR;

  5229   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5231   if (!vm_created) {

  5232     res = JNI_ERR;

  5233     return res;

  5234   }

  5236   JNIWrapper("DestroyJavaVM");

  5237   JNIEnv *env;

  5238   JavaVMAttachArgs destroyargs;

  5239   destroyargs.version = CurrentVersion;

  5240   destroyargs.name = (char *)"DestroyJavaVM";

  5241   destroyargs.group = NULL;

  5242   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5243   if (res != JNI_OK) {

  5244     return res;

  5245   }

  5247   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5248   JavaThread* thread = JavaThread::current();

  5249   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5250   if (Threads::destroy_vm()) {

  5251     // Should not change thread state, VM is gone

  5252     vm_created = false;

  5253     res = JNI_OK;

  5254     return res;

  5255   } else {

  5256     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5257     res = JNI_ERR;

  5258     return res;

  5259   }

  5260 }

  5263 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5264   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5266   // Check below commented out from JDK1.2fcs as well

  5267   /*

  5268   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5269     return JNI_EVERSION;

  5270   }

  5271   */

  5273   Thread* t = ThreadLocalStorage::get_thread_slow();

  5274   if (t != NULL) {

  5275     // If the thread has been attached this operation is a no-op

  5276     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5277     return JNI_OK;

  5278   }

  5280   // Create a thread and mark it as attaching so it will be skipped by the

  5281   // ThreadsListEnumerator - see CR 6404306

  5282   JavaThread* thread = new JavaThread(true);

  5284   // Set correct safepoint info. The thread is going to call into Java when

  5285   // initializing the Java level thread object. Hence, the correct state must

  5286   // be set in order for the Safepoint code to deal with it correctly.

  5287   thread->set_thread_state(_thread_in_vm);

  5288   // Must do this before initialize_thread_local_storage

  5289   thread->record_stack_base_and_size();

  5291   thread->initialize_thread_local_storage();

  5293   if (!os::create_attached_thread(thread)) {

  5294     delete thread;

  5295     return JNI_ERR;

  5296   }

  5297   // Enable stack overflow checks

  5298   thread->create_stack_guard_pages();

  5300   thread->initialize_tlab();

  5302   thread->cache_global_variables();

  5304   // Crucial that we do not have a safepoint check for this thread, since it has

  5305   // not been added to the Thread list yet.

  5306   { Threads_lock->lock_without_safepoint_check();

  5307     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5308     // avoid this thread trying to do a GC before it is added to the thread-list

  5309     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5310     Threads::add(thread, daemon);

  5311     Threads_lock->unlock();

  5312   }

  5313   // Create thread group and name info from attach arguments

  5314   oop group = NULL;

  5315   char* thread_name = NULL;

  5316   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5317     group = JNIHandles::resolve(args->group);

  5318     thread_name = args->name; // may be NULL

  5319   }

  5320   if (group == NULL) group = Universe::main_thread_group();

  5322   // Create Java level thread object and attach it to this thread

  5323   bool attach_failed = false;

  5324   {

  5325     EXCEPTION_MARK;

  5326     HandleMark hm(THREAD);

  5327     Handle thread_group(THREAD, group);

  5328     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5329     if (HAS_PENDING_EXCEPTION) {

  5330       CLEAR_PENDING_EXCEPTION;

  5331       // cleanup outside the handle mark.

  5332       attach_failed = true;

  5333     }

  5334   }

  5336   if (attach_failed) {

  5337     // Added missing cleanup

  5338     thread->cleanup_failed_attach_current_thread();

  5339     return JNI_ERR;

  5340   }

  5342   // mark the thread as no longer attaching

  5343   // this uses a fence to push the change through so we don't have

  5344   // to regrab the threads_lock

  5345   thread->set_done_attaching_via_jni();

  5347   // Set java thread status.

  5348   java_lang_Thread::set_thread_status(thread->threadObj(),

  5349               java_lang_Thread::RUNNABLE);

  5351   // Notify the debugger

  5352   if (JvmtiExport::should_post_thread_life()) {

  5353     JvmtiExport::post_thread_start(thread);

  5354   }

  5356   EVENT_BEGIN(TraceEventThreadStart, event);

  5357   EVENT_COMMIT(event,

  5358       EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5360   *(JNIEnv**)penv = thread->jni_environment();

  5362   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5363   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5364   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5365   // needed.

  5367   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5369   // Perform any platform dependent FPU setup

  5370   os::setup_fpu();

  5372   return JNI_OK;

  5373 }

  5376 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5377 #ifndef USDT2

  5378   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5379 #else /* USDT2 */

  5380   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5381                                         vm, penv, _args);

  5382 #endif /* USDT2 */

  5383   if (!vm_created) {

  5384 #ifndef USDT2

  5385     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5386 #else /* USDT2 */

  5387   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5388                                          (uint32_t) JNI_ERR);

  5389 #endif /* USDT2 */

  5390     return JNI_ERR;

  5391   }

  5393   JNIWrapper("AttachCurrentThread");

  5394   jint ret = attach_current_thread(vm, penv, _args, false);

  5395 #ifndef USDT2

  5396   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5397 #else /* USDT2 */

  5398   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5399                                          ret);

  5400 #endif /* USDT2 */

  5401   return ret;

  5402 }

  5405 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5406 #ifndef USDT2

  5407   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5408 #else /* USDT2 */

  5409   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5410                                         vm);

  5411 #endif /* USDT2 */

  5412   VM_Exit::block_if_vm_exited();

  5414   JNIWrapper("DetachCurrentThread");

  5416   // If the thread has been deattacted the operations is a no-op

  5417   if (ThreadLocalStorage::thread() == NULL) {

  5418 #ifndef USDT2

  5419     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5420 #else /* USDT2 */

  5421   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5422                                          JNI_OK);

  5423 #endif /* USDT2 */

  5424     return JNI_OK;

  5425   }

  5427   JavaThread* thread = JavaThread::current();

  5428   if (thread->has_last_Java_frame()) {

  5429 #ifndef USDT2

  5430     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5431 #else /* USDT2 */

  5432   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5433                                          (uint32_t) JNI_ERR);

  5434 #endif /* USDT2 */

  5435     // Can't detach a thread that's running java, that can't work.

  5436     return JNI_ERR;

  5437   }

  5439   // Safepoint support. Have to do call-back to safepoint code, if in the

  5440   // middel of a safepoint operation

  5441   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5443   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5444   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5445   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5446   // of the guards is visible in jni_AttachCurrentThread above,

  5447   // the removal of the guards is buried below in JavaThread::exit()

  5448   // here. The abstraction should be more symmetrically either exposed

  5449   // or hidden (e.g. it could probably be hidden in the same

  5450   // (platform-dependent) methods where we do alternate stack

  5451   // maintenance work?)

  5452   thread->exit(false, JavaThread::jni_detach);

  5453   delete thread;

  5455 #ifndef USDT2

  5456   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5457 #else /* USDT2 */

  5458   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5459                                          JNI_OK);

  5460 #endif /* USDT2 */

  5461   return JNI_OK;

  5462 }

  5464 #ifndef USDT2

  5465 DT_RETURN_MARK_DECL(GetEnv, jint);

  5466 #else /* USDT2 */

  5467 DT_RETURN_MARK_DECL(GetEnv, jint

  5468                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5469 #endif /* USDT2 */

  5471 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5472 #ifndef USDT2

  5473   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5474 #else /* USDT2 */

  5475   HOTSPOT_JNI_GETENV_ENTRY(

  5476                            vm, penv, version);

  5477 #endif /* USDT2 */

  5478   jint ret = JNI_ERR;

  5479   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5481   if (!vm_created) {

  5482     *penv = NULL;

  5483     ret = JNI_EDETACHED;

  5484     return ret;

  5485   }

  5487   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5488     return ret;

  5489   }

  5491 #ifndef JVMPI_VERSION_1

  5492 // need these in order to be polite about older agents

  5493 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5494 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5495 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5496 #endif // !JVMPI_VERSION_1

  5498   Thread* thread = ThreadLocalStorage::thread();

  5499   if (thread != NULL && thread->is_Java_thread()) {

  5500     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5501       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5502       ret = JNI_OK;

  5503       return ret;

  5505     } else if (version == JVMPI_VERSION_1 ||

  5506                version == JVMPI_VERSION_1_1 ||

  5507                version == JVMPI_VERSION_1_2) {

  5508       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5509       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5510       ret = JNI_EVERSION;

  5511       return ret;

  5512     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5513       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5514       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5515       ret = JNI_EVERSION;

  5516       return ret;

  5517     } else {

  5518       *penv = NULL;

  5519       ret = JNI_EVERSION;

  5520       return ret;

  5521     }

  5522   } else {

  5523     *penv = NULL;

  5524     ret = JNI_EDETACHED;

  5525     return ret;

  5526   }

  5527 }

  5530 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5531 #ifndef USDT2

  5532   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5533 #else /* USDT2 */

  5534   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5535                                                 vm, penv, _args);

  5536 #endif /* USDT2 */

  5537   if (!vm_created) {

  5538 #ifndef USDT2

  5539     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5540 #else /* USDT2 */

  5541   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5542                                                  (uint32_t) JNI_ERR);

  5543 #endif /* USDT2 */

  5544     return JNI_ERR;

  5545   }

  5547   JNIWrapper("AttachCurrentThreadAsDaemon");

  5548   jint ret = attach_current_thread(vm, penv, _args, true);

  5549 #ifndef USDT2

  5550   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5551 #else /* USDT2 */

  5552   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5553                                                  ret);

  5554 #endif /* USDT2 */

  5555   return ret;

  5556 }

  5559 } // End extern "C"

  5561 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5562     NULL,

  5563     NULL,

  5564     NULL,

  5566     jni_DestroyJavaVM,

  5567     jni_AttachCurrentThread,

  5568     jni_DetachCurrentThread,

  5569     jni_GetEnv,

  5570     jni_AttachCurrentThreadAsDaemon

  5571 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@db9981fd3124

src/share/vm/prims/jni.cpp