jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@f90c822e73f8

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17

     1 /*

     2  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.

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

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

     5  *

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

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

     8  * published by the Free Software Foundation.

     9  *

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

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

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

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

    14  * accompanied this code).

    15  *

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

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

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

    19  *

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

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

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "ci/ciReplay.hpp"

    28 #include "classfile/altHashing.hpp"

    29 #include "classfile/classLoader.hpp"

    30 #include "classfile/javaClasses.hpp"

    31 #include "classfile/symbolTable.hpp"

    32 #include "classfile/systemDictionary.hpp"

    33 #include "classfile/vmSymbols.hpp"

    34 #include "interpreter/linkResolver.hpp"

    35 #include "utilities/macros.hpp"

    36 #if INCLUDE_ALL_GCS

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

    38 #endif // INCLUDE_ALL_GCS

    39 #include "memory/allocation.hpp"

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

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

    42 #include "memory/oopFactory.hpp"

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

    44 #include "oops/instanceKlass.hpp"

    45 #include "oops/instanceOop.hpp"

    46 #include "oops/markOop.hpp"

    47 #include "oops/method.hpp"

    48 #include "oops/objArrayKlass.hpp"

    49 #include "oops/objArrayOop.hpp"

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

    51 #include "oops/symbol.hpp"

    52 #include "oops/typeArrayKlass.hpp"

    53 #include "oops/typeArrayOop.hpp"

    54 #include "prims/jni.h"

    55 #include "prims/jniCheck.hpp"

    56 #include "prims/jniExport.hpp"

    57 #include "prims/jniFastGetField.hpp"

    58 #include "prims/jvm.h"

    59 #include "prims/jvm_misc.hpp"

    60 #include "prims/jvmtiExport.hpp"

    61 #include "prims/jvmtiThreadState.hpp"

    62 #include "runtime/compilationPolicy.hpp"

    63 #include "runtime/fieldDescriptor.hpp"

    64 #include "runtime/fprofiler.hpp"

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

    66 #include "runtime/interfaceSupport.hpp"

    67 #include "runtime/java.hpp"

    68 #include "runtime/javaCalls.hpp"

    69 #include "runtime/jfieldIDWorkaround.hpp"

    70 #include "runtime/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 "utilities/defaultStream.hpp"

    78 #include "utilities/dtrace.hpp"

    79 #include "utilities/events.hpp"

    80 #include "utilities/histogram.hpp"

    81 #ifdef TARGET_OS_FAMILY_linux

    82 # include "os_linux.inline.hpp"

    83 #endif

    84 #ifdef TARGET_OS_FAMILY_solaris

    85 # include "os_solaris.inline.hpp"

    86 #endif

    87 #ifdef TARGET_OS_FAMILY_windows

    88 # include "os_windows.inline.hpp"

    89 #endif

    90 #ifdef TARGET_OS_FAMILY_bsd

    91 # include "os_bsd.inline.hpp"

    92 #endif

    94 static jint CurrentVersion = JNI_VERSION_1_8;

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

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

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

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

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

   102 //

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

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

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

   106 // a reference to it).

   107 //

   108 // Example:

   109 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   111 //   int return_value = 0;

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

   113 //   foo(CHECK_0)

   114 //   return_value = 5;

   115 //   return return_value;

   116 // JNI_END

   117 #ifndef USDT2

   118 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   120   DTRACE_ONLY(                                                             \

   121     class DTraceReturnProbeMark_##name {                                   \

   122      public:                                                               \

   123       const type& _ret_ref;                                                \

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

   125       ~DTraceReturnProbeMark_##name() {                                    \

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

   127       }                                                                    \

   128     }                                                                      \

   129   )

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

   131 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   133   DTRACE_ONLY(                                                             \

   134     class DTraceReturnProbeMark_##name {                                   \

   135      public:                                                               \

   136       ~DTraceReturnProbeMark_##name() {                                    \

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

   138       }                                                                    \

   139     }                                                                      \

   140   )

   142 #else /* USDT2 */

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

   145   DTRACE_ONLY(                                                             \

   146     class DTraceReturnProbeMark_##name {                                   \

   147      public:                                                               \

   148       const type& _ret_ref;                                                \

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

   150       ~DTraceReturnProbeMark_##name() {                                    \

   151         probe;                                                             \

   152       }                                                                    \

   153     }                                                                      \

   154   )

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

   156 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   157   DTRACE_ONLY(                                                             \

   158     class DTraceReturnProbeMark_##name {                                   \

   159      public:                                                               \

   160       ~DTraceReturnProbeMark_##name() {                                    \

   161         probe;                                                             \

   162       }                                                                    \

   163     }                                                                      \

   164   )

   165 #endif /* USDT2 */

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

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

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

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

   171 #define DT_VOID_RETURN_MARK(name) \

   172   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   177 // different behavior for Float/Double

   178 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   179 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   180 #define FP_SELECT_Char(intcode, fpcode)    intcode

   181 #define FP_SELECT_Short(intcode, fpcode)   intcode

   182 #define FP_SELECT_Object(intcode, fpcode)  intcode

   183 #define FP_SELECT_Int(intcode, fpcode)     intcode

   184 #define FP_SELECT_Long(intcode, fpcode)    intcode

   185 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   186 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   188   FP_SELECT_##TypeName(intcode, fpcode)

   190 #define COMMA ,

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

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

   194 #ifndef USDT2

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

   196   FP_SELECT(TypeName, \

   197     DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )

   198 #else /* USDT2 */

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

   200   FP_SELECT(TypeName, \

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

   202 #endif /* USDT2 */

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

   204   FP_SELECT(TypeName, \

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

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

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

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

   212     uintptr_t as_uint = (uintptr_t) id;

   213     intptr_t offset = raw_instance_offset(id);

   214     if (is_checked_jfieldID(id)) {

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

   216         return false;

   217       }

   218     }

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

   220   } else {

   221     JNIid* result = (JNIid*) id;

   222 #ifdef ASSERT

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

   224 #else

   225     return result != NULL;

   226 #endif

   227   }

   228 }

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

   232   if (offset <= small_offset_mask) {

   233     Klass* field_klass = k;

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

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

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

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

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

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

   240       super_klass = field_klass->super();

   241     }

   242     debug_only(No_Safepoint_Verifier nosafepoint;)

   243     uintptr_t klass_hash = field_klass->identity_hash();

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

   245   } else {

   246 #if 0

   247     #ifndef PRODUCT

   248     {

   249       ResourceMark rm;

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

   251     }

   252     #endif

   253 #endif

   254     return 0;

   255   }

   256 }

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

   259   uintptr_t as_uint = (uintptr_t) id;

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

   261   do {

   262     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   265       return true;

   266     k = k->super();

   267   } while (k != NULL);

   268   return false;

   269 }

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

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

   273   uintptr_t as_uint = (uintptr_t) id;

   274   intptr_t offset = raw_instance_offset(id);

   275   if (VerifyJNIFields) {

   276     if (is_checked_jfieldID(id)) {

   277       guarantee(klass_hash_ok(k, id),

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

   279     } else {

   280 #if 0

   281       #ifndef PRODUCT

   282       if (Verbose) {

   283   ResourceMark rm;

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

   285       }

   286       #endif

   287 #endif

   288     }

   289   }

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

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

   292 }

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

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

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

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

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

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

   300 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   303 // Wrapper to trace JNI functions

   305 #ifdef ASSERT

   306   Histogram* JNIHistogram;

   307   static volatile jint JNIHistogram_lock = 0;

   309   class JNITraceWrapper : public StackObj {

   310    public:

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

   312       if (TraceJNICalls) {

   313         va_list ap;

   314         va_start(ap, format);

   315         tty->print("JNI ");

   316         tty->vprint_cr(format, ap);

   317         va_end(ap);

   318       }

   319     }

   320   };

   322   class JNIHistogramElement : public HistogramElement {

   323     public:

   324      JNIHistogramElement(const char* name);

   325   };

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

   328     _name = elementName;

   329     uintx count = 0;

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

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

   333         count +=1;

   334         if ( (WarnOnStalledSpinLock > 0)

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

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

   337         }

   338       }

   339      }

   342     if(JNIHistogram == NULL)

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

   345     JNIHistogram->add_element(this);

   346     Atomic::dec(&JNIHistogram_lock);

   347   }

   349   #define JNICountWrapper(arg)                                     \

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

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

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

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

   354 #else

   355   #define JNIWrapper(arg)

   356 #endif

   359 // Implementation of JNI entries

   361 #ifndef USDT2

   362 DT_RETURN_MARK_DECL(DefineClass, jclass);

   363 #else /* USDT2 */

   364 DT_RETURN_MARK_DECL(DefineClass, jclass

   365                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   366 #endif /* USDT2 */

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

   369                                   const jbyte *buf, jsize bufLen))

   370   JNIWrapper("DefineClass");

   372 #ifndef USDT2

   373   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   375 #else /* USDT2 */

   376   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   378 #endif /* USDT2 */

   379   jclass cls = NULL;

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

   382   TempNewSymbol class_name = NULL;

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

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

   385   if (name != NULL) {

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

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

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

   389       // into the constant pool.

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

   391     }

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

   393   }

   394   ResourceMark rm(THREAD);

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

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

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

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

   400     // If not, increment the corresponding counter

   401     if (ObjectSynchronizer::

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

   403         ObjectSynchronizer::owner_self) {

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

   405     }

   406   }

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

   408                                                      Handle(), &st, true,

   409                                                      CHECK_NULL);

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

   412     trace_class_resolution(k);

   413   }

   415   cls = (jclass)JNIHandles::make_local(

   416     env, k->java_mirror());

   417   return cls;

   418 JNI_END

   422 static bool first_time_FindClass = true;

   424 #ifndef USDT2

   425 DT_RETURN_MARK_DECL(FindClass, jclass);

   426 #else /* USDT2 */

   427 DT_RETURN_MARK_DECL(FindClass, jclass

   428                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   429 #endif /* USDT2 */

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

   432   JNIWrapper("FindClass");

   433 #ifndef USDT2

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

   435 #else /* USDT2 */

   436   HOTSPOT_JNI_FINDCLASS_ENTRY(

   437                               env, (char *)name);

   438 #endif /* USDT2 */

   440   jclass result = NULL;

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

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

   444   bool first_time = first_time_FindClass;

   445   first_time_FindClass = false;

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

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

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

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

   451   }

   453   //%note jni_3

   454   Handle loader;

   455   Handle protection_domain;

   456   // Find calling class

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

   458   if (k.not_null()) {

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

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

   461     // in the correct class context.

   462     if (loader.is_null() &&

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

   464       JavaValue result(T_OBJECT);

   465       JavaCalls::call_static(&result, k,

   466                                       vmSymbols::getFromClass_name(),

   467                                       vmSymbols::void_class_signature(),

   468                                       thread);

   469       if (HAS_PENDING_EXCEPTION) {

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

   471         CLEAR_PENDING_EXCEPTION;

   472         THROW_HANDLE_0(ex);

   473       }

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

   475       loader = Handle(THREAD,

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

   477       protection_domain = Handle(THREAD,

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

   479     }

   480   } else {

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

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

   483   }

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

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

   487                                         protection_domain, true, thread);

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

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

   491   }

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

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

   495   // Controlled by flag DelayCompilationDuringStartup.

   496   if (first_time && !CompileTheWorld)

   497     CompilationPolicy::completed_vm_startup();

   499   return result;

   500 JNI_END

   502 #ifndef USDT2

   503 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   504 #else /* USDT2 */

   505 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   506                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   507 #endif /* USDT2 */

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

   510   JNIWrapper("FromReflectedMethod");

   511 #ifndef USDT2

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

   513 #else /* USDT2 */

   514   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   515                                         env, method);

   516 #endif /* USDT2 */

   517   jmethodID ret = NULL;

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

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

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

   522   oop mirror     = NULL;

   523   int slot       = 0;

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

   526     mirror = java_lang_reflect_Constructor::clazz(reflected);

   527     slot   = java_lang_reflect_Constructor::slot(reflected);

   528   } else {

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

   530     mirror = java_lang_reflect_Method::clazz(reflected);

   531     slot   = java_lang_reflect_Method::slot(reflected);

   532   }

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

   535   KlassHandle k1(THREAD, k);

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

   537   k1()->initialize(CHECK_NULL);

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

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

   540   return ret;

   541 JNI_END

   543 #ifndef USDT2

   544 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   545 #else /* USDT2 */

   546 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   547                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   548 #endif /* USDT2 */

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

   551   JNIWrapper("FromReflectedField");

   552 #ifndef USDT2

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

   554 #else /* USDT2 */

   555   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   556                                        env, field);

   557 #endif /* USDT2 */

   558   jfieldID ret = NULL;

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

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

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

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

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

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

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

   568   KlassHandle k1(THREAD, k);

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

   570   k1()->initialize(CHECK_NULL);

   572   // First check if this is a static field

   573   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   577     debug_only(id->set_is_static_field_id();)

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

   579     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   580     return ret;

   581   }

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

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

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

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

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

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

   589   return ret;

   590 JNI_END

   592 #ifndef USDT2

   593 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   594 #else /* USDT2 */

   595 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   596                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   597 #endif /* USDT2 */

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

   600   JNIWrapper("ToReflectedMethod");

   601 #ifndef USDT2

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

   603 #else /* USDT2 */

   604   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   606 #endif /* USDT2 */

   607   jobject ret = NULL;

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

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

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

   612   oop reflection_method;

   613   if (m->is_initializer()) {

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

   615   } else {

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

   617   }

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

   619   return ret;

   620 JNI_END

   622 #ifndef USDT2

   623 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   624 #else /* USDT2 */

   625 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   626                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   627 #endif /* USDT2 */

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

   630   JNIWrapper("GetSuperclass");

   631 #ifndef USDT2

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

   633 #else /* USDT2 */

   634   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   635                                   env, sub);

   636 #endif /* USDT2 */

   637   jclass obj = NULL;

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

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

   641   // primitive classes return NULL

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

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

   645   // arrays return Object

   646   // interfaces return NULL

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

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

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

   651   // return mirror for superclass

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

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

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

   655                                  ? SystemDictionary::Object_klass()

   656                                  : k->super() ) );

   657   assert(super == super2,

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

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

   660   return obj;

   661 JNI_END

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

   664   JNIWrapper("IsSubclassOf");

   665 #ifndef USDT2

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

   667 #else /* USDT2 */

   668   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   669                                      env, sub, super);

   670 #endif /* USDT2 */

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

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

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

   674       java_lang_Class::is_primitive(super_mirror)) {

   675     jboolean ret = (sub_mirror == super_mirror);

   676 #ifndef USDT2

   677     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   678 #else /* USDT2 */

   679     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   680                                         ret);

   681 #endif /* USDT2 */

   682     return ret;

   683   }

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

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

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

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

   688                    JNI_TRUE : JNI_FALSE;

   689 #ifndef USDT2

   690   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   691 #else /* USDT2 */

   692   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   693                                       ret);

   694 #endif /* USDT2 */

   695   return ret;

   696 JNI_END

   698 #ifndef USDT2

   699 DT_RETURN_MARK_DECL(Throw, jint);

   700 #else /* USDT2 */

   701 DT_RETURN_MARK_DECL(Throw, jint

   702                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   703 #endif /* USDT2 */

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

   706   JNIWrapper("Throw");

   707 #ifndef USDT2

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

   709 #else /* USDT2 */

   710   HOTSPOT_JNI_THROW_ENTRY(

   711  env, obj);

   712 #endif /* USDT2 */

   713   jint ret = JNI_OK;

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

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

   717   ShouldNotReachHere();

   718 JNI_END

   720 #ifndef USDT2

   721 DT_RETURN_MARK_DECL(ThrowNew, jint);

   722 #else /* USDT2 */

   723 DT_RETURN_MARK_DECL(ThrowNew, jint

   724                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   725 #endif /* USDT2 */

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

   728   JNIWrapper("ThrowNew");

   729 #ifndef USDT2

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

   731 #else /* USDT2 */

   732   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   734 #endif /* USDT2 */

   735   jint ret = JNI_OK;

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

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

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

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

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

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

   743   ShouldNotReachHere();

   744 JNI_END

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

   748 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   754 // state transition.

   756 static void jni_check_async_exceptions(JavaThread *thread) {

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

   758   thread->check_and_handle_async_exceptions();

   759 }

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

   762   JNIWrapper("ExceptionOccurred");

   763 #ifndef USDT2

   764   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   765 #else /* USDT2 */

   766   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   767                                       env);

   768 #endif /* USDT2 */

   769   jni_check_async_exceptions(thread);

   770   oop exception = thread->pending_exception();

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

   772 #ifndef USDT2

   773   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   774 #else /* USDT2 */

   775   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   776                                        ret);

   777 #endif /* USDT2 */

   778   return ret;

   779 JNI_END

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

   783   JNIWrapper("ExceptionDescribe");

   784 #ifndef USDT2

   785   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   786 #else /* USDT2 */

   787   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   788                                       env);

   789 #endif /* USDT2 */

   790   if (thread->has_pending_exception()) {

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

   792     thread->clear_pending_exception();

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

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

   795     } else {

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

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

   798         ResourceMark rm(THREAD);

   799         jio_fprintf(defaultStream::error_stream(),

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

   801       }

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

   803         JavaValue result(T_VOID);

   804         JavaCalls::call_virtual(&result,

   805                                 ex,

   806                                 KlassHandle(THREAD,

   807                                   SystemDictionary::Throwable_klass()),

   808                                 vmSymbols::printStackTrace_name(),

   809                                 vmSymbols::void_method_signature(),

   810                                 THREAD);

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

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

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

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

   815         // is expected.

   816         CLEAR_PENDING_EXCEPTION;

   817       } else {

   818         ResourceMark rm(THREAD);

   819         jio_fprintf(defaultStream::error_stream(),

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

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

   822       }

   823     }

   824   }

   825 #ifndef USDT2

   826   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   827 #else /* USDT2 */

   828   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   829                                        );

   830 #endif /* USDT2 */

   831 JNI_END

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

   835   JNIWrapper("ExceptionClear");

   836 #ifndef USDT2

   837   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   838 #else /* USDT2 */

   839   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   840                                    env);

   841 #endif /* USDT2 */

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

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

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

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

   847     state->set_exception_caught();

   848   }

   849   thread->clear_pending_exception();

   850 #ifndef USDT2

   851   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   852 #else /* USDT2 */

   853   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   854                                     );

   855 #endif /* USDT2 */

   856 JNI_END

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

   860   JNIWrapper("FatalError");

   861 #ifndef USDT2

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

   863 #else /* USDT2 */

   864   HOTSPOT_JNI_FATALERROR_ENTRY(

   865                                env, (char *) msg);

   866 #endif /* USDT2 */

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

   868   thread->print_stack();

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

   870 JNI_END

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

   874   JNIWrapper("PushLocalFrame");

   875 #ifndef USDT2

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

   877 #else /* USDT2 */

   878   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   879                                    env, capacity);

   880 #endif /* USDT2 */

   881   //%note jni_11

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

   883 #ifndef USDT2

   884     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   885 #else /* USDT2 */

   886     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   887                                       (uint32_t)JNI_ERR);

   888 #endif /* USDT2 */

   889     return JNI_ERR;

   890   }

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

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

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

   894   new_handles->set_pop_frame_link(old_handles);

   895   thread->set_active_handles(new_handles);

   896   jint ret = JNI_OK;

   897 #ifndef USDT2

   898   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   899 #else /* USDT2 */

   900   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   901                                     ret);

   902 #endif /* USDT2 */

   903   return ret;

   904 JNI_END

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

   908   JNIWrapper("PopLocalFrame");

   909 #ifndef USDT2

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

   911 #else /* USDT2 */

   912   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   913                                   env, result);

   914 #endif /* USDT2 */

   915   //%note jni_11

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

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

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

   919   if (new_handles != NULL) {

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

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

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

   923     // the release_block call will release the blocks.

   924     thread->set_active_handles(new_handles);

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

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

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

   928   }

   929 #ifndef USDT2

   930   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   931 #else /* USDT2 */

   932   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   933                                    result);

   934 #endif /* USDT2 */

   935   return result;

   936 JNI_END

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

   940   JNIWrapper("NewGlobalRef");

   941 #ifndef USDT2

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

   943 #else /* USDT2 */

   944   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   945                                  env, ref);

   946 #endif /* USDT2 */

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

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

   949 #ifndef USDT2

   950   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   951 #else /* USDT2 */

   952   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   953                                   ret);

   954 #endif /* USDT2 */

   955   return ret;

   956 JNI_END

   958 // Must be JNI_ENTRY (with HandleMark)

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

   960   JNIWrapper("DeleteGlobalRef");

   961 #ifndef USDT2

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

   963 #else /* USDT2 */

   964   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   965                                     env, ref);

   966 #endif /* USDT2 */

   967   JNIHandles::destroy_global(ref);

   968 #ifndef USDT2

   969   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   970 #else /* USDT2 */

   971   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   972                                      );

   973 #endif /* USDT2 */

   974 JNI_END

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

   977   JNIWrapper("DeleteLocalRef");

   978 #ifndef USDT2

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

   980 #else /* USDT2 */

   981   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   982                                    env, obj);

   983 #endif /* USDT2 */

   984   JNIHandles::destroy_local(obj);

   985 #ifndef USDT2

   986   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   987 #else /* USDT2 */

   988   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   989                                     );

   990 #endif /* USDT2 */

   991 JNI_END

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

   994   JNIWrapper("IsSameObject");

   995 #ifndef USDT2

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

   997 #else /* USDT2 */

   998   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

   999                                  env, r1, r2);

  1000 #endif /* USDT2 */

  1001   oop a = JNIHandles::resolve(r1);

  1002   oop b = JNIHandles::resolve(r2);

  1003   jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;

  1004 #ifndef USDT2

  1005   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1006 #else /* USDT2 */

  1007   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1008                                   ret);

  1009 #endif /* USDT2 */

  1010   return ret;

  1011 JNI_END

  1014 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))

  1015   JNIWrapper("NewLocalRef");

  1016 #ifndef USDT2

  1017   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);

  1018 #else /* USDT2 */

  1019   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1020                                 env, ref);

  1021 #endif /* USDT2 */

  1022   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));

  1023 #ifndef USDT2

  1024   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1025 #else /* USDT2 */

  1026   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1027                                  ret);

  1028 #endif /* USDT2 */

  1029   return ret;

  1030 JNI_END

  1032 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))

  1033   JNIWrapper("EnsureLocalCapacity");

  1034 #ifndef USDT2

  1035   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);

  1036 #else /* USDT2 */

  1037   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1038                                         env, capacity);

  1039 #endif /* USDT2 */

  1040   jint ret;

  1041   if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) {

  1042     ret = JNI_OK;

  1043   } else {

  1044     ret = JNI_ERR;

  1045   }

  1046 #ifndef USDT2

  1047   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1048 #else /* USDT2 */

  1049   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1050                                          ret);

  1051 #endif /* USDT2 */

  1052   return ret;

  1053 JNI_END

  1055 // Return the Handle Type

  1056 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))

  1057   JNIWrapper("GetObjectRefType");

  1058 #ifndef USDT2

  1059   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);

  1060 #else /* USDT2 */

  1061   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1062                                      env, obj);

  1063 #endif /* USDT2 */

  1064   jobjectRefType ret;

  1065   if (JNIHandles::is_local_handle(thread, obj) ||

  1066       JNIHandles::is_frame_handle(thread, obj))

  1067     ret = JNILocalRefType;

  1068   else if (JNIHandles::is_global_handle(obj))

  1069     ret = JNIGlobalRefType;

  1070   else if (JNIHandles::is_weak_global_handle(obj))

  1071     ret = JNIWeakGlobalRefType;

  1072   else

  1073     ret = JNIInvalidRefType;

  1074 #ifndef USDT2

  1075   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1076 #else /* USDT2 */

  1077   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1078                                       (void *) ret);

  1079 #endif /* USDT2 */

  1080   return ret;

  1081 JNI_END

  1084 class JNI_ArgumentPusher : public SignatureIterator {

  1085  protected:

  1086   JavaCallArguments*  _arguments;

  1088   virtual void get_bool   () = 0;

  1089   virtual void get_char   () = 0;

  1090   virtual void get_short  () = 0;

  1091   virtual void get_byte   () = 0;

  1092   virtual void get_int    () = 0;

  1093   virtual void get_long   () = 0;

  1094   virtual void get_float  () = 0;

  1095   virtual void get_double () = 0;

  1096   virtual void get_object () = 0;

  1098   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {

  1099     this->_return_type = T_ILLEGAL;

  1100     _arguments = NULL;

  1101   }

  1103  public:

  1104   virtual void iterate( uint64_t fingerprint ) = 0;

  1106   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }

  1108   inline void do_bool()                     { if (!is_return_type()) get_bool();   }

  1109   inline void do_char()                     { if (!is_return_type()) get_char();   }

  1110   inline void do_short()                    { if (!is_return_type()) get_short();  }

  1111   inline void do_byte()                     { if (!is_return_type()) get_byte();   }

  1112   inline void do_int()                      { if (!is_return_type()) get_int();    }

  1113   inline void do_long()                     { if (!is_return_type()) get_long();   }

  1114   inline void do_float()                    { if (!is_return_type()) get_float();  }

  1115   inline void do_double()                   { if (!is_return_type()) get_double(); }

  1116   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }

  1117   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array

  1118   inline void do_void()                     { }

  1120   JavaCallArguments* arguments()     { return _arguments; }

  1121   void push_receiver(Handle h)       { _arguments->push_oop(h); }

  1122 };

  1125 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1126  protected:

  1127   va_list _ap;

  1129   inline void get_bool()   { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg

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

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

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

  1133   inline void get_int()    { _arguments->push_int(va_arg(_ap, jint)); }

  1135   // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests

  1137   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }

  1138   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg

  1139   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }

  1140   inline void get_object() { jobject l = va_arg(_ap, jobject);

  1141                              _arguments->push_oop(Handle((oop *)l, false)); }

  1143   inline void set_ap(va_list rap) {

  1144 #ifdef va_copy

  1145     va_copy(_ap, rap);

  1146 #elif defined (__va_copy)

  1147     __va_copy(_ap, rap);

  1148 #else

  1149     _ap = rap;

  1150 #endif

  1151   }

  1153  public:

  1154   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1155        : JNI_ArgumentPusher(signature) {

  1156     set_ap(rap);

  1157   }

  1158   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

  1159       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1160     set_ap(rap);

  1161   }

  1163   // Optimized path if we have the bitvector form of signature

  1164   void iterate( uint64_t fingerprint ) {

  1165     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments

  1166     else {

  1167       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1168                                   result_feature_mask);

  1170       assert(fingerprint, "Fingerprint should not be 0");

  1171       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1172       while ( 1 ) {

  1173         switch ( fingerprint & parameter_feature_mask ) {

  1174           case bool_parm:

  1175           case char_parm:

  1176           case short_parm:

  1177           case byte_parm:

  1178           case int_parm:

  1179             get_int();

  1180             break;

  1181           case obj_parm:

  1182             get_object();

  1183             break;

  1184           case long_parm:

  1185             get_long();

  1186             break;

  1187           case float_parm:

  1188             get_float();

  1189             break;

  1190           case double_parm:

  1191             get_double();

  1192             break;

  1193           case done_parm:

  1194             return;

  1195             break;

  1196           default:

  1197             ShouldNotReachHere();

  1198             break;

  1199         }

  1200         fingerprint >>= parameter_feature_size;

  1201       }

  1202     }

  1203   }

  1204 };

  1207 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1208  protected:

  1209   const jvalue *_ap;

  1211   inline void get_bool()   { _arguments->push_int((jint)(_ap++)->z); }

  1212   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }

  1213   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }

  1214   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }

  1215   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }

  1217   inline void get_long()   { _arguments->push_long((_ap++)->j);  }

  1218   inline void get_float()  { _arguments->push_float((_ap++)->f); }

  1219   inline void get_double() { _arguments->push_double((_ap++)->d);}

  1220   inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }

  1222   inline void set_ap(const jvalue *rap) { _ap = rap; }

  1224  public:

  1225   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)

  1226        : JNI_ArgumentPusher(signature) {

  1227     set_ap(rap);

  1228   }

  1229   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

  1230       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1231     set_ap(rap);

  1232   }

  1234   // Optimized path if we have the bitvector form of signature

  1235   void iterate( uint64_t fingerprint ) {

  1236     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments

  1237     else {

  1238       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1239                                   result_feature_mask);

  1240       assert(fingerprint, "Fingerprint should not be 0");

  1241       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1242       while ( 1 ) {

  1243         switch ( fingerprint & parameter_feature_mask ) {

  1244           case bool_parm:

  1245             get_bool();

  1246             break;

  1247           case char_parm:

  1248             get_char();

  1249             break;

  1250           case short_parm:

  1251             get_short();

  1252             break;

  1253           case byte_parm:

  1254             get_byte();

  1255             break;

  1256           case int_parm:

  1257             get_int();

  1258             break;

  1259           case obj_parm:

  1260             get_object();

  1261             break;

  1262           case long_parm:

  1263             get_long();

  1264             break;

  1265           case float_parm:

  1266             get_float();

  1267             break;

  1268           case double_parm:

  1269             get_double();

  1270             break;

  1271           case done_parm:

  1272             return;

  1273             break;

  1274           default:

  1275             ShouldNotReachHere();

  1276             break;

  1277         }

  1278         fingerprint >>= parameter_feature_size;

  1279       }

  1280     }

  1281   }

  1282 };

  1285 enum JNICallType {

  1286   JNI_STATIC,

  1287   JNI_VIRTUAL,

  1288   JNI_NONVIRTUAL

  1289 };

  1293 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1294   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1296   // Create object to hold arguments for the JavaCall, and associate it with

  1297   // the jni parser

  1298   ResourceMark rm(THREAD);

  1299   int number_of_parameters = method->size_of_parameters();

  1300   JavaCallArguments java_args(number_of_parameters);

  1301   args->set_java_argument_object(&java_args);

  1303   assert(method->is_static(), "method should be static");

  1305   // Fill out JavaCallArguments object

  1306   args->iterate( Fingerprinter(method).fingerprint() );

  1307   // Initialize result type

  1308   result->set_type(args->get_ret_type());

  1310   // Invoke the method. Result is returned as oop.

  1311   JavaCalls::call(result, method, &java_args, CHECK);

  1313   // Convert result

  1314   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1315     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1316   }

  1317 }

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

  1321   oop recv = JNIHandles::resolve(receiver);

  1322   if (recv == NULL) {

  1323     THROW(vmSymbols::java_lang_NullPointerException());

  1324   }

  1325   Handle h_recv(THREAD, recv);

  1327   int number_of_parameters;

  1328   Method* selected_method;

  1329   {

  1330     Method* m = Method::resolve_jmethod_id(method_id);

  1331     number_of_parameters = m->size_of_parameters();

  1332     Klass* holder = m->method_holder();

  1333     if (!(holder)->is_interface()) {

  1334       // non-interface call -- for that little speed boost, don't handlize

  1335       debug_only(No_Safepoint_Verifier nosafepoint;)

  1336       if (call_type == JNI_VIRTUAL) {

  1337         // jni_GetMethodID makes sure class is linked and initialized

  1338         // so m should have a valid vtable index.

  1339         assert(!m->has_itable_index(), "");

  1340         int vtbl_index = m->vtable_index();

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

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

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

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

  1345           InstanceKlass *ik = (InstanceKlass*)k;

  1346           selected_method = ik->method_at_vtable(vtbl_index);

  1347         } else {

  1348           // final method

  1349           selected_method = m;

  1350         }

  1351       } else {

  1352         // JNI_NONVIRTUAL call

  1353         selected_method = m;

  1354       }

  1355     } else {

  1356       // interface call

  1357       KlassHandle h_holder(THREAD, holder);

  1359       if (call_type == JNI_VIRTUAL) {

  1360         int itbl_index = m->itable_index();

  1361         Klass* k = h_recv->klass();

  1362         selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1363       } else {

  1364         selected_method = m;

  1365       }

  1366     }

  1367   }

  1369   methodHandle method(THREAD, selected_method);

  1371   // Create object to hold arguments for the JavaCall, and associate it with

  1372   // the jni parser

  1373   ResourceMark rm(THREAD);

  1374   JavaCallArguments java_args(number_of_parameters);

  1375   args->set_java_argument_object(&java_args);

  1377   // handle arguments

  1378   assert(!method->is_static(), "method should not be static");

  1379   args->push_receiver(h_recv); // Push jobject handle

  1381   // Fill out JavaCallArguments object

  1382   args->iterate( Fingerprinter(method).fingerprint() );

  1383   // Initialize result type

  1384   result->set_type(args->get_ret_type());

  1386   // Invoke the method. Result is returned as oop.

  1387   JavaCalls::call(result, method, &java_args, CHECK);

  1389   // Convert result

  1390   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1391     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1392   }

  1393 }

  1396 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1397   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1398   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1399   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1400   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1401   return ih;

  1402 }

  1404 #ifndef USDT2

  1405 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1406 #else /* USDT2 */

  1407 DT_RETURN_MARK_DECL(AllocObject, jobject

  1408                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1409 #endif /* USDT2 */

  1411 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1412   JNIWrapper("AllocObject");

  1414 #ifndef USDT2

  1415   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1416 #else /* USDT2 */

  1417   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1418                                 env, clazz);

  1419 #endif /* USDT2 */

  1420   jobject ret = NULL;

  1421   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1423   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1424   ret = JNIHandles::make_local(env, i);

  1425   return ret;

  1426 JNI_END

  1428 #ifndef USDT2

  1429 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1430 #else /* USDT2 */

  1431 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1432                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1433 #endif /* USDT2 */

  1435 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1436   JNIWrapper("NewObjectA");

  1437 #ifndef USDT2

  1438   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1439 #else /* USDT2 */

  1440   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1441                                env, clazz, (uintptr_t) methodID);

  1442 #endif /* USDT2 */

  1443   jobject obj = NULL;

  1444   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1446   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1447   obj = JNIHandles::make_local(env, i);

  1448   JavaValue jvalue(T_VOID);

  1449   JNI_ArgumentPusherArray ap(methodID, args);

  1450   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1451   return obj;

  1452 JNI_END

  1454 #ifndef USDT2

  1455 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1456 #else /* USDT2 */

  1457 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1458                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1459 #endif /* USDT2 */

  1461 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1462   JNIWrapper("NewObjectV");

  1463 #ifndef USDT2

  1464   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1465 #else /* USDT2 */

  1466   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1467                                env, clazz, (uintptr_t) methodID);

  1468 #endif /* USDT2 */

  1469   jobject obj = NULL;

  1470   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1472   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1473   obj = JNIHandles::make_local(env, i);

  1474   JavaValue jvalue(T_VOID);

  1475   JNI_ArgumentPusherVaArg ap(methodID, args);

  1476   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1477   return obj;

  1478 JNI_END

  1480 #ifndef USDT2

  1481 DT_RETURN_MARK_DECL(NewObject, jobject);

  1482 #else /* USDT2 */

  1483 DT_RETURN_MARK_DECL(NewObject, jobject

  1484                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1485 #endif /* USDT2 */

  1487 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1488   JNIWrapper("NewObject");

  1489 #ifndef USDT2

  1490   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1491 #else /* USDT2 */

  1492   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1493                               env, clazz, (uintptr_t) methodID);

  1494 #endif /* USDT2 */

  1495   jobject obj = NULL;

  1496   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1498   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1499   obj = JNIHandles::make_local(env, i);

  1500   va_list args;

  1501   va_start(args, methodID);

  1502   JavaValue jvalue(T_VOID);

  1503   JNI_ArgumentPusherVaArg ap(methodID, args);

  1504   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1505   va_end(args);

  1506   return obj;

  1507 JNI_END

  1510 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1511   JNIWrapper("GetObjectClass");

  1512 #ifndef USDT2

  1513   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1514 #else /* USDT2 */

  1515   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1516                                    env, obj);

  1517 #endif /* USDT2 */

  1518   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1519   jclass ret =

  1520     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1521 #ifndef USDT2

  1522   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1523 #else /* USDT2 */

  1524   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1525                                     ret);

  1526 #endif /* USDT2 */

  1527   return ret;

  1528 JNI_END

  1530 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1531   JNIWrapper("IsInstanceOf");

  1532 #ifndef USDT2

  1533   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1534 #else /* USDT2 */

  1535   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1536                                  env, obj, clazz);

  1537 #endif /* USDT2 */

  1538   jboolean ret = JNI_TRUE;

  1539   if (obj != NULL) {

  1540     ret = JNI_FALSE;

  1541     Klass* k = java_lang_Class::as_Klass(

  1542       JNIHandles::resolve_non_null(clazz));

  1543     if (k != NULL) {

  1544       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1545     }

  1546   }

  1547 #ifndef USDT2

  1548   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1549 #else /* USDT2 */

  1550   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1551                                   ret);

  1552 #endif /* USDT2 */

  1553   return ret;

  1554 JNI_END

  1557 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1558                                const char *sig, bool is_static, TRAPS) {

  1559   // %%%% This code should probably just call into a method in the LinkResolver

  1560   //

  1561   // The class should have been loaded (we have an instance of the class

  1562   // passed in) so the method and signature should already be in the symbol

  1563   // table.  If they're not there, the method doesn't exist.

  1564   const char *name_to_probe = (name_str == NULL)

  1565                         ? vmSymbols::object_initializer_name()->as_C_string()

  1566                         : name_str;

  1567   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1568   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1570   if (name == NULL || signature == NULL) {

  1571     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1572   }

  1574   // Throw a NoSuchMethodError exception if we have an instance of a

  1575   // primitive java.lang.Class

  1576   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

  1577     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1578   }

  1580   KlassHandle klass(THREAD,

  1581                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1583   // Make sure class is linked and initialized before handing id's out to

  1584   // Method*s.

  1585   klass()->initialize(CHECK_NULL);

  1587   Method* m;

  1588   if (name == vmSymbols::object_initializer_name() ||

  1589       name == vmSymbols::class_initializer_name()) {

  1590     // Never search superclasses for constructors

  1591     if (klass->oop_is_instance()) {

  1592       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1593     } else {

  1594       m = NULL;

  1595     }

  1596   } else {

  1597     m = klass->lookup_method(name, signature);

  1598     if (m == NULL &&  klass->oop_is_instance()) {

  1599       m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);

  1600     }

  1601   }

  1602   if (m == NULL || (m->is_static() != is_static)) {

  1603     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1604   }

  1605   return m->jmethod_id();

  1606 }

  1609 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1610           const char *name, const char *sig))

  1611   JNIWrapper("GetMethodID");

  1612 #ifndef USDT2

  1613   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1614 #else /* USDT2 */

  1615   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1616                                 env, clazz, (char *) name, (char *) sig);

  1617 #endif /* USDT2 */

  1618   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1619 #ifndef USDT2

  1620   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1621 #else /* USDT2 */

  1622   HOTSPOT_JNI_GETMETHODID_RETURN(

  1623                                  (uintptr_t) ret);

  1624 #endif /* USDT2 */

  1625   return ret;

  1626 JNI_END

  1629 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1630           const char *name, const char *sig))

  1631   JNIWrapper("GetStaticMethodID");

  1632 #ifndef USDT2

  1633   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1634 #else /* USDT2 */

  1635   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1636                                       env, (char *) clazz, (char *) name, (char *)sig);

  1637 #endif /* USDT2 */

  1638   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1639 #ifndef USDT2

  1640   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1641 #else /* USDT2 */

  1642   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1643                                        (uintptr_t) ret);

  1644 #endif /* USDT2 */

  1645   return ret;

  1646 JNI_END

  1650 //

  1651 // Calling Methods

  1652 //

  1654 #ifndef USDT2

  1655 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1656 \

  1657   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

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

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

  1660 \

  1661 JNI_ENTRY(ResultType, \

  1662           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1663   JNIWrapper("Call" XSTR(Result) "Method"); \

  1664 \

  1665   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1666   ResultType ret = 0;\

  1667   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1668                      (const ResultType&)ret);\

  1669 \

  1670   va_list args; \

  1671   va_start(args, methodID); \

  1672   JavaValue jvalue(Tag); \

  1673   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1674   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1675   va_end(args); \

  1676   ret = jvalue.get_##ResultType(); \

  1677   return ret;\

  1678 JNI_END \

  1679 \

  1680 \

  1681 JNI_ENTRY(ResultType, \

  1682           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1683   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1684 \

  1685   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1686   ResultType ret = 0;\

  1687   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1688                      (const ResultType&)ret);\

  1689 \

  1690   JavaValue jvalue(Tag); \

  1691   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1692   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1693   ret = jvalue.get_##ResultType(); \

  1694   return ret;\

  1695 JNI_END \

  1696 \

  1697 \

  1698 JNI_ENTRY(ResultType, \

  1699           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1700   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1701   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1702   ResultType ret = 0;\

  1703   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1704                      (const ResultType&)ret);\

  1705 \

  1706   JavaValue jvalue(Tag); \

  1707   JNI_ArgumentPusherArray ap(methodID, args); \

  1708   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1709   ret = jvalue.get_##ResultType(); \

  1710   return ret;\

  1711 JNI_END

  1713 // the runtime type of subword integral basic types is integer

  1714 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1715 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1716 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1717 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1719 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1720 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1721 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1722 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1723 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1725 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1726 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1727 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1729 #else /* USDT2 */

  1731 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1732                           , EntryProbe, ReturnProbe)    \

  1733 \

  1734   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1735                           , ReturnProbe);                          \

  1736 \

  1737 JNI_ENTRY(ResultType, \

  1738           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1739   JNIWrapper("Call" XSTR(Result) "Method"); \

  1740 \

  1741   EntryProbe; \

  1742   ResultType ret = 0;\

  1743   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1744                      (const ResultType&)ret);\

  1745 \

  1746   va_list args; \

  1747   va_start(args, methodID); \

  1748   JavaValue jvalue(Tag); \

  1749   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1750   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1751   va_end(args); \

  1752   ret = jvalue.get_##ResultType(); \

  1753   return ret;\

  1754 JNI_END

  1756 // the runtime type of subword integral basic types is integer

  1757 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1758                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1759                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1760 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

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

  1762                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1763 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

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

  1765                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1766 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

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

  1768                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1770 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1771                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1772                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1773 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

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

  1775                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1776 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

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

  1778                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1779 // Float and double probes don't return value because dtrace doesn't currently support it

  1780 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1781                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1782                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1783 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

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

  1785                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1787 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1788                           , EntryProbe, ReturnProbe)    \

  1789 \

  1790   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1791                           , ReturnProbe);                          \

  1792 \

  1793 JNI_ENTRY(ResultType, \

  1794           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1795   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1796 \

  1797   EntryProbe;\

  1798   ResultType ret = 0;\

  1799   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1800                      (const ResultType&)ret);\

  1801 \

  1802   JavaValue jvalue(Tag); \

  1803   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1804   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1805   ret = jvalue.get_##ResultType(); \

  1806   return ret;\

  1807 JNI_END

  1809 // the runtime type of subword integral basic types is integer

  1810 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

  1811                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1812                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1813 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

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

  1815                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1816 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

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

  1818                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1819 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

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

  1821                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1823 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1824                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1825                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1826 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

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

  1828                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1829 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1831                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1832 // Float and double probes don't return value because dtrace doesn't currently support it

  1833 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1834                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1835                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1836 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

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

  1838                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1840 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1841                           , EntryProbe, ReturnProbe)    \

  1842 \

  1843   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1844                           , ReturnProbe);                          \

  1845 \

  1846 JNI_ENTRY(ResultType, \

  1847           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1848   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1849   EntryProbe; \

  1850   ResultType ret = 0;\

  1851   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1852                      (const ResultType&)ret);\

  1853 \

  1854   JavaValue jvalue(Tag); \

  1855   JNI_ArgumentPusherArray ap(methodID, args); \

  1856   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1857   ret = jvalue.get_##ResultType(); \

  1858   return ret;\

  1859 JNI_END

  1861 // the runtime type of subword integral basic types is integer

  1862 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

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

  1864                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1865 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

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

  1867                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1868 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

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

  1870                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1871 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

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

  1873                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1875 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1876                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1877                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1878 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

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

  1880                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1881 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

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

  1883                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1884 // Float and double probes don't return value because dtrace doesn't currently support it

  1885 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1886                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1887                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1888 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

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

  1890                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1892 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1893 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1894 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1896 #endif /* USDT2 */

  1898 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1899   JNIWrapper("CallVoidMethod");

  1900 #ifndef USDT2

  1901   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1902 #else /* USDT2 */

  1903   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1904                                    env, obj, (uintptr_t) methodID);

  1905 #endif /* USDT2 */

  1906   DT_VOID_RETURN_MARK(CallVoidMethod);

  1908   va_list args;

  1909   va_start(args, methodID);

  1910   JavaValue jvalue(T_VOID);

  1911   JNI_ArgumentPusherVaArg ap(methodID, args);

  1912   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1913   va_end(args);

  1914 JNI_END

  1917 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1918   JNIWrapper("CallVoidMethodV");

  1919 #ifndef USDT2

  1920   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1921 #else /* USDT2 */

  1922   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1923                                     env, obj, (uintptr_t) methodID);

  1924 #endif /* USDT2 */

  1925   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1927   JavaValue jvalue(T_VOID);

  1928   JNI_ArgumentPusherVaArg ap(methodID, args);

  1929   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1930 JNI_END

  1933 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1934   JNIWrapper("CallVoidMethodA");

  1935 #ifndef USDT2

  1936   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1937 #else /* USDT2 */

  1938   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1939                                     env, obj, (uintptr_t) methodID);

  1940 #endif /* USDT2 */

  1941   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1943   JavaValue jvalue(T_VOID);

  1944   JNI_ArgumentPusherArray ap(methodID, args);

  1945   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1946 JNI_END

  1949 #ifndef USDT2

  1950 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1951 \

  1952   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

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

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

  1955 \

  1956 JNI_ENTRY(ResultType, \

  1957           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1958   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1959 \

  1960   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1961   ResultType ret;\

  1962   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1963                      (const ResultType&)ret);\

  1964 \

  1965   va_list args; \

  1966   va_start(args, methodID); \

  1967   JavaValue jvalue(Tag); \

  1968   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1969   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1970   va_end(args); \

  1971   ret = jvalue.get_##ResultType(); \

  1972   return ret;\

  1973 JNI_END \

  1974 \

  1975 JNI_ENTRY(ResultType, \

  1976           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  1977   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  1978   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  1979   ResultType ret;\

  1980   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  1981                      (const ResultType&)ret);\

  1982 \

  1983   JavaValue jvalue(Tag); \

  1984   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1985   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1986   ret = jvalue.get_##ResultType(); \

  1987   return ret;\

  1988 JNI_END \

  1989 \

  1990 JNI_ENTRY(ResultType, \

  1991           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  1992   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  1993   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  1994   ResultType ret;\

  1995   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  1996                      (const ResultType&)ret);\

  1997 \

  1998   JavaValue jvalue(Tag); \

  1999   JNI_ArgumentPusherArray ap(methodID, args); \

  2000   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2001   ret = jvalue.get_##ResultType(); \

  2002   return ret;\

  2003 JNI_END

  2005 // the runtime type of subword integral basic types is integer

  2006 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2007 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2008 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2009 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2011 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2012 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2013 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2014 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2015 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2018 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2019 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2020 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2022 #else /* USDT2 */

  2024 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2025                                     , EntryProbe, ReturnProbe)      \

  2026 \

  2027   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2028                           , ReturnProbe);\

  2029 \

  2030 JNI_ENTRY(ResultType, \

  2031           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2032   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2033 \

  2034   EntryProbe;\

  2035   ResultType ret;\

  2036   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2037                      (const ResultType&)ret);\

  2038 \

  2039   va_list args; \

  2040   va_start(args, methodID); \

  2041   JavaValue jvalue(Tag); \

  2042   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2043   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2044   va_end(args); \

  2045   ret = jvalue.get_##ResultType(); \

  2046   return ret;\

  2047 JNI_END

  2049 // the runtime type of subword integral basic types is integer

  2050 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2051                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2052                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2053 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

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

  2055                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2056 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

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

  2058                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2059 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

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

  2061                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2063 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2064                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2065                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2066 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

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

  2068                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2069 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

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

  2071 // Float and double probes don't return value because dtrace doesn't currently support it

  2072                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2073 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2074                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2075                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2076 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

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

  2078                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2080 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2081                                     , EntryProbe, ReturnProbe)      \

  2082 \

  2083   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2084                           , ReturnProbe);\

  2085 \

  2086 JNI_ENTRY(ResultType, \

  2087           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2088   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2089 \

  2090   EntryProbe;\

  2091   ResultType ret;\

  2092   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2093                      (const ResultType&)ret);\

  2094 \

  2095   JavaValue jvalue(Tag); \

  2096   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2097   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2098   ret = jvalue.get_##ResultType(); \

  2099   return ret;\

  2100 JNI_END

  2102 // the runtime type of subword integral basic types is integer

  2103 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

  2104                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2105                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2106 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

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

  2108                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2109 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

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

  2111                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2112 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

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

  2114                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2116 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2117                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2118                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2119 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

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

  2121                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2122 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

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

  2124 // Float and double probes don't return value because dtrace doesn't currently support it

  2125                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2126 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2127                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2128                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2129 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

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

  2131                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2133 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2134                                     , EntryProbe, ReturnProbe)      \

  2135 \

  2136   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2137                           , ReturnProbe);\

  2138 \

  2139 JNI_ENTRY(ResultType, \

  2140           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2141   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2142 \

  2143   EntryProbe;\

  2144   ResultType ret;\

  2145   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2146                      (const ResultType&)ret);\

  2147 \

  2148   JavaValue jvalue(Tag); \

  2149   JNI_ArgumentPusherArray ap(methodID, args); \

  2150   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2151   ret = jvalue.get_##ResultType(); \

  2152   return ret;\

  2153 JNI_END

  2155 // the runtime type of subword integral basic types is integer

  2156 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

  2157                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2158                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2159 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

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

  2161                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2162 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

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

  2164                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2165 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

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

  2167                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2169 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2170                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2171                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2172 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

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

  2174                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2175 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2177 // Float and double probes don't return value because dtrace doesn't currently support it

  2178                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2179 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2180                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2181                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2182 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

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

  2184                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2186 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2187                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2188 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2189                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2190 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2191                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2192 #endif /* USDT2 */

  2194 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2195   JNIWrapper("CallNonvirtualVoidMethod");

  2197 #ifndef USDT2

  2198   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2199                env, obj, cls, methodID);

  2200 #else /* USDT2 */

  2201   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

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

  2203 #endif /* USDT2 */

  2204   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2206   va_list args;

  2207   va_start(args, methodID);

  2208   JavaValue jvalue(T_VOID);

  2209   JNI_ArgumentPusherVaArg ap(methodID, args);

  2210   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2211   va_end(args);

  2212 JNI_END

  2215 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2216   JNIWrapper("CallNonvirtualVoidMethodV");

  2218 #ifndef USDT2

  2219   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2220                env, obj, cls, methodID);

  2221 #else /* USDT2 */

  2222   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2223                env, obj, cls, (uintptr_t) methodID);

  2224 #endif /* USDT2 */

  2225   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2227   JavaValue jvalue(T_VOID);

  2228   JNI_ArgumentPusherVaArg ap(methodID, args);

  2229   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2230 JNI_END

  2233 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2234   JNIWrapper("CallNonvirtualVoidMethodA");

  2235 #ifndef USDT2

  2236   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2237                 env, obj, cls, methodID);

  2238 #else /* USDT2 */

  2239   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2240                 env, obj, cls, (uintptr_t) methodID);

  2241 #endif /* USDT2 */

  2242   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2243   JavaValue jvalue(T_VOID);

  2244   JNI_ArgumentPusherArray ap(methodID, args);

  2245   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2246 JNI_END

  2249 #ifndef USDT2

  2250 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2251 \

  2252   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

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

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

  2255 \

  2256 JNI_ENTRY(ResultType, \

  2257           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2258   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2259 \

  2260   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2261   ResultType ret = 0;\

  2262   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2263                      (const ResultType&)ret);\

  2264 \

  2265   va_list args; \

  2266   va_start(args, methodID); \

  2267   JavaValue jvalue(Tag); \

  2268   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2269   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2270   va_end(args); \

  2271   ret = jvalue.get_##ResultType(); \

  2272   return ret;\

  2273 JNI_END \

  2274 \

  2275 JNI_ENTRY(ResultType, \

  2276           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2277   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2278   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2279   ResultType ret = 0;\

  2280   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2281                      (const ResultType&)ret);\

  2282 \

  2283   JavaValue jvalue(Tag); \

  2284   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2285   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2286   ret = jvalue.get_##ResultType(); \

  2287   return ret;\

  2288 JNI_END \

  2289 \

  2290 JNI_ENTRY(ResultType, \

  2291           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2292   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2293   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2294   ResultType ret = 0;\

  2295   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2296                      (const ResultType&)ret);\

  2297 \

  2298   JavaValue jvalue(Tag); \

  2299   JNI_ArgumentPusherArray ap(methodID, args); \

  2300   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2301   ret = jvalue.get_##ResultType(); \

  2302   return ret;\

  2303 JNI_END

  2305 // the runtime type of subword integral basic types is integer

  2306 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2307 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2308 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2309 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2311 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2312 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2313 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2314 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2315 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2318 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2319 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2320 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2322 #else /* USDT2 */

  2324 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2325                                 , EntryProbe, ResultProbe) \

  2326 \

  2327   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2328                           , ResultProbe);                               \

  2329 \

  2330 JNI_ENTRY(ResultType, \

  2331           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2332   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2333 \

  2334   EntryProbe; \

  2335   ResultType ret = 0;\

  2336   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2337                      (const ResultType&)ret);\

  2338 \

  2339   va_list args; \

  2340   va_start(args, methodID); \

  2341   JavaValue jvalue(Tag); \

  2342   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2343   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2344   va_end(args); \

  2345   ret = jvalue.get_##ResultType(); \

  2346   return ret;\

  2347 JNI_END

  2349 // the runtime type of subword integral basic types is integer

  2350 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2351                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2352                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2353 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

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

  2355                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2356 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

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

  2358                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2359 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

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

  2361                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2363 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2364                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2365                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2366 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

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

  2368                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2369 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2371                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2372 // Float and double probes don't return value because dtrace doesn't currently support it

  2373 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2374                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2375                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2376 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

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

  2378                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2380 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2381                                 , EntryProbe, ResultProbe) \

  2382 \

  2383   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2384                           , ResultProbe);                               \

  2385 \

  2386 JNI_ENTRY(ResultType, \

  2387           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2388   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2389 \

  2390   EntryProbe; \

  2391   ResultType ret = 0;\

  2392   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2393                      (const ResultType&)ret);\

  2394 \

  2395   JavaValue jvalue(Tag); \

  2396   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2397   /* Make sure class is initialized before trying to invoke its method */ \

  2398   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2399   k()->initialize(CHECK_0); \

  2400   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2401   va_end(args); \

  2402   ret = jvalue.get_##ResultType(); \

  2403   return ret;\

  2404 JNI_END

  2406 // the runtime type of subword integral basic types is integer

  2407 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

  2408                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2409                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2410 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

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

  2412                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2413 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

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

  2415                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2416 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

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

  2418                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2420 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2421                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2422                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2423 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

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

  2425                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2426 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

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

  2428                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2429 // Float and double probes don't return value because dtrace doesn't currently support it

  2430 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2431                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2432                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2433 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

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

  2435                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2437 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2438                                 , EntryProbe, ResultProbe) \

  2439 \

  2440   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2441                           , ResultProbe);                               \

  2442 \

  2443 JNI_ENTRY(ResultType, \

  2444           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2445   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2446 \

  2447   EntryProbe; \

  2448   ResultType ret = 0;\

  2449   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2450                      (const ResultType&)ret);\

  2451 \

  2452   JavaValue jvalue(Tag); \

  2453   JNI_ArgumentPusherArray ap(methodID, args); \

  2454   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2455   ret = jvalue.get_##ResultType(); \

  2456   return ret;\

  2457 JNI_END

  2459 // the runtime type of subword integral basic types is integer

  2460 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

  2461                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2462                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2463 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

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

  2465                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2466 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

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

  2468                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2469 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

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

  2471                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2473 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2474                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2475                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2476 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

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

  2478                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2479 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

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

  2481                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2482 // Float and double probes don't return value because dtrace doesn't currently support it

  2483 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2484                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2485                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2486 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

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

  2488                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2490 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2491                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2492 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2493                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2494 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2495                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2496 #endif /* USDT2 */

  2498 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2499   JNIWrapper("CallStaticVoidMethod");

  2500 #ifndef USDT2

  2501   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2502 #else /* USDT2 */

  2503   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2504                                          env, cls, (uintptr_t) methodID);

  2505 #endif /* USDT2 */

  2506   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2508   va_list args;

  2509   va_start(args, methodID);

  2510   JavaValue jvalue(T_VOID);

  2511   JNI_ArgumentPusherVaArg ap(methodID, args);

  2512   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2513   va_end(args);

  2514 JNI_END

  2517 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2518   JNIWrapper("CallStaticVoidMethodV");

  2519 #ifndef USDT2

  2520   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2521 #else /* USDT2 */

  2522   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2523                                           env, cls, (uintptr_t) methodID);

  2524 #endif /* USDT2 */

  2525   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2527   JavaValue jvalue(T_VOID);

  2528   JNI_ArgumentPusherVaArg ap(methodID, args);

  2529   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2530 JNI_END

  2533 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2534   JNIWrapper("CallStaticVoidMethodA");

  2535 #ifndef USDT2

  2536   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2537 #else /* USDT2 */

  2538   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2539                                           env, cls, (uintptr_t) methodID);

  2540 #endif /* USDT2 */

  2541   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2543   JavaValue jvalue(T_VOID);

  2544   JNI_ArgumentPusherArray ap(methodID, args);

  2545   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2546 JNI_END

  2549 //

  2550 // Accessing Fields

  2551 //

  2554 #ifndef USDT2

  2555 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2556 #else /* USDT2 */

  2557 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2558                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2559 #endif /* USDT2 */

  2561 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2562           const char *name, const char *sig))

  2563   JNIWrapper("GetFieldID");

  2564 #ifndef USDT2

  2565   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2566 #else /* USDT2 */

  2567   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2568                                env, clazz, (char *) name, (char *) sig);

  2569 #endif /* USDT2 */

  2570   jfieldID ret = 0;

  2571   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2573   // The class should have been loaded (we have an instance of the class

  2574   // passed in) so the field and signature should already be in the symbol

  2575   // table.  If they're not there, the field doesn't exist.

  2576   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2577   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2578   if (fieldname == NULL || signame == NULL) {

  2579     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2580   }

  2581   KlassHandle k(THREAD,

  2582                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2583   // Make sure class is initialized before handing id's out to fields

  2584   k()->initialize(CHECK_NULL);

  2586   fieldDescriptor fd;

  2587   if (!k()->oop_is_instance() ||

  2588       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2589     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2590   }

  2592   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2593   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2594   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2595   return ret;

  2596 JNI_END

  2599 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2600   JNIWrapper("GetObjectField");

  2601 #ifndef USDT2

  2602   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2603 #else /* USDT2 */

  2604   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2605                                    env, obj, (uintptr_t) fieldID);

  2606 #endif /* USDT2 */

  2607   oop o = JNIHandles::resolve_non_null(obj);

  2608   Klass* k = o->klass();

  2609   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2610   // Keep JVMTI addition small and only check enabled flag here.

  2611   // jni_GetField_probe() assumes that is okay to create handles.

  2612   if (JvmtiExport::should_post_field_access()) {

  2613     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2614   }

  2615   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2616 #if INCLUDE_ALL_GCS

  2617   // If G1 is enabled and we are accessing the value of the referent

  2618   // field in a reference object then we need to register a non-null

  2619   // referent with the SATB barrier.

  2620   if (UseG1GC) {

  2621     bool needs_barrier = false;

  2623     if (ret != NULL &&

  2624         offset == java_lang_ref_Reference::referent_offset &&

  2625         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2626       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2627       needs_barrier = true;

  2628     }

  2630     if (needs_barrier) {

  2631       oop referent = JNIHandles::resolve(ret);

  2632       G1SATBCardTableModRefBS::enqueue(referent);

  2633     }

  2634   }

  2635 #endif // INCLUDE_ALL_GCS

  2636 #ifndef USDT2

  2637   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2638 #else /* USDT2 */

  2639 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2640                                   ret);

  2641 #endif /* USDT2 */

  2642   return ret;

  2643 JNI_END

  2646 #ifndef USDT2

  2647 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2648 \

  2649   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2650 \

  2651 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2652   JNIWrapper("Get" XSTR(Result) "Field"); \

  2653 \

  2654   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2655   Return ret = 0;\

  2656   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2657 \

  2658   oop o = JNIHandles::resolve_non_null(obj); \

  2659   Klass* k = o->klass(); \

  2660   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2661   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2662   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2663   /* and creates a ResetNoHandleMark.                                   */ \

  2664   if (JvmtiExport::should_post_field_access()) { \

  2665     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2666   } \

  2667   ret = o->Fieldname##_field(offset); \

  2668   return ret; \

  2669 JNI_END

  2671 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2672 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2673 DEFINE_GETFIELD(jchar,    char,   Char)

  2674 DEFINE_GETFIELD(jshort,   short,  Short)

  2675 DEFINE_GETFIELD(jint,     int,    Int)

  2676 DEFINE_GETFIELD(jlong,    long,   Long)

  2677 DEFINE_GETFIELD(jfloat,   float,  Float)

  2678 DEFINE_GETFIELD(jdouble,  double, Double)

  2680 #else /* USDT2 */

  2682 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2683   , EntryProbe, ReturnProbe) \

  2684 \

  2685   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2686   , ReturnProbe); \

  2687 \

  2688 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2689   JNIWrapper("Get" XSTR(Result) "Field"); \

  2690 \

  2691   EntryProbe; \

  2692   Return ret = 0;\

  2693   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2694 \

  2695   oop o = JNIHandles::resolve_non_null(obj); \

  2696   Klass* k = o->klass(); \

  2697   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2698   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2699   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2700   /* and creates a ResetNoHandleMark.                                   */ \

  2701   if (JvmtiExport::should_post_field_access()) { \

  2702     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2703   } \

  2704   ret = o->Fieldname##_field(offset); \

  2705   return ret; \

  2706 JNI_END

  2708 DEFINE_GETFIELD(jboolean, bool,   Boolean

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

  2710                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2711 DEFINE_GETFIELD(jbyte,    byte,   Byte

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

  2713                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2714 DEFINE_GETFIELD(jchar,    char,   Char

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

  2716                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2717 DEFINE_GETFIELD(jshort,   short,  Short

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

  2719                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2720 DEFINE_GETFIELD(jint,     int,    Int

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

  2722                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2723 DEFINE_GETFIELD(jlong,    long,   Long

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

  2725                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2726 // Float and double probes don't return value because dtrace doesn't currently support it

  2727 DEFINE_GETFIELD(jfloat,   float,  Float

  2728                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2729                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2730 DEFINE_GETFIELD(jdouble,  double, Double

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

  2732                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2733 #endif /* USDT2 */

  2735 address jni_GetBooleanField_addr() {

  2736   return (address)jni_GetBooleanField;

  2737 }

  2738 address jni_GetByteField_addr() {

  2739   return (address)jni_GetByteField;

  2740 }

  2741 address jni_GetCharField_addr() {

  2742   return (address)jni_GetCharField;

  2743 }

  2744 address jni_GetShortField_addr() {

  2745   return (address)jni_GetShortField;

  2746 }

  2747 address jni_GetIntField_addr() {

  2748   return (address)jni_GetIntField;

  2749 }

  2750 address jni_GetLongField_addr() {

  2751   return (address)jni_GetLongField;

  2752 }

  2753 address jni_GetFloatField_addr() {

  2754   return (address)jni_GetFloatField;

  2755 }

  2756 address jni_GetDoubleField_addr() {

  2757   return (address)jni_GetDoubleField;

  2758 }

  2760 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2761   JNIWrapper("SetObjectField");

  2762 #ifndef USDT2

  2763   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2764 #else /* USDT2 */

  2765   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2766                                    env, obj, (uintptr_t) fieldID, value);

  2767 #endif /* USDT2 */

  2768   oop o = JNIHandles::resolve_non_null(obj);

  2769   Klass* k = o->klass();

  2770   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2771   // Keep JVMTI addition small and only check enabled flag here.

  2772   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2773   // and creates a ResetNoHandleMark.

  2774   if (JvmtiExport::should_post_field_modification()) {

  2775     jvalue field_value;

  2776     field_value.l = value;

  2777     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2778   }

  2779   o->obj_field_put(offset, JNIHandles::resolve(value));

  2780 #ifndef USDT2

  2781   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2782 #else /* USDT2 */

  2783   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2784 );

  2785 #endif /* USDT2 */

  2786 JNI_END

  2788 #ifndef USDT2

  2789 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2790 \

  2791 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2792   JNIWrapper("Set" XSTR(Result) "Field"); \

  2793 \

  2794   FP_SELECT_##Result( \

  2795     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2796     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2797 \

  2798   oop o = JNIHandles::resolve_non_null(obj); \

  2799   Klass* k = o->klass(); \

  2800   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2801   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2802   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2803   /* and creates a ResetNoHandleMark.                                   */ \

  2804   if (JvmtiExport::should_post_field_modification()) { \

  2805     jvalue field_value; \

  2806     field_value.unionType = value; \

  2807     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2808   } \

  2809   o->Fieldname##_field_put(offset, value); \

  2810   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2811 JNI_END

  2813 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2814 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2815 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2816 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2817 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2818 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2819 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2820 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2822 #else /* USDT2 */

  2824 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2825                         , EntryProbe, ReturnProbe) \

  2826 \

  2827 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2828   JNIWrapper("Set" XSTR(Result) "Field"); \

  2829 \

  2830   EntryProbe; \

  2831 \

  2832   oop o = JNIHandles::resolve_non_null(obj); \

  2833   Klass* k = o->klass(); \

  2834   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2835   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2836   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2837   /* and creates a ResetNoHandleMark.                                   */ \

  2838   if (JvmtiExport::should_post_field_modification()) { \

  2839     jvalue field_value; \

  2840     field_value.unionType = value; \

  2841     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2842   } \

  2843   o->Fieldname##_field_put(offset, value); \

  2844   ReturnProbe; \

  2845 JNI_END

  2847 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2848                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2849                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2850 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

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

  2852                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2853 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

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

  2855                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2856 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

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

  2858                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2859 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

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

  2861                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2862 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

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

  2864                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2865 // Float and double probes don't return value because dtrace doesn't currently support it

  2866 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2867                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2868                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2869 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

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

  2871                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2872 #endif /* USDT2 */

  2874 #ifndef USDT2

  2875 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2876 #else /* USDT2 */

  2877 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2878                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2879 #endif /* USDT2 */

  2881 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2882   JNIWrapper("ToReflectedField");

  2883 #ifndef USDT2

  2884   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2885                 env, cls, fieldID, isStatic);

  2886 #else /* USDT2 */

  2887   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2888                 env, cls, (uintptr_t) fieldID, isStatic);

  2889 #endif /* USDT2 */

  2890   jobject ret = NULL;

  2891   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2893   fieldDescriptor fd;

  2894   bool found = false;

  2895   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2897   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2899   if (isStatic) {

  2900     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2901     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2902     assert(id->is_static_field_id(), "invalid static field id");

  2903     found = id->find_local_field(&fd);

  2904   } else {

  2905     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2906     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2907     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2908   }

  2909   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2910   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2911   ret = JNIHandles::make_local(env, reflected);

  2912   return ret;

  2913 JNI_END

  2916 //

  2917 // Accessing Static Fields

  2918 //

  2919 #ifndef USDT2

  2920 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2921 #else /* USDT2 */

  2922 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2923                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2924 #endif /* USDT2 */

  2926 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2927           const char *name, const char *sig))

  2928   JNIWrapper("GetStaticFieldID");

  2929 #ifndef USDT2

  2930   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2931 #else /* USDT2 */

  2932   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2933                                      env, clazz, (char *) name, (char *) sig);

  2934 #endif /* USDT2 */

  2935   jfieldID ret = NULL;

  2936   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2938   // The class should have been loaded (we have an instance of the class

  2939   // passed in) so the field and signature should already be in the symbol

  2940   // table.  If they're not there, the field doesn't exist.

  2941   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2942   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2943   if (fieldname == NULL || signame == NULL) {

  2944     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2945   }

  2946   KlassHandle k(THREAD,

  2947                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2948   // Make sure class is initialized before handing id's out to static fields

  2949   k()->initialize(CHECK_NULL);

  2951   fieldDescriptor fd;

  2952   if (!k()->oop_is_instance() ||

  2953       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2954     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2955   }

  2957   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2958   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2959   debug_only(id->set_is_static_field_id();)

  2961   debug_only(id->verify(fd.field_holder()));

  2963   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2964   return ret;

  2965 JNI_END

  2968 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2969   JNIWrapper("GetStaticObjectField");

  2970 #ifndef USDT2

  2971   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  2972 #else /* USDT2 */

  2973   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  2974                                          env, clazz, (uintptr_t) fieldID);

  2975 #endif /* USDT2 */

  2976 #if INCLUDE_JNI_CHECK

  2977   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  2978 #endif // INCLUDE_JNI_CHECK

  2979   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2980   assert(id->is_static_field_id(), "invalid static field id");

  2981   // Keep JVMTI addition small and only check enabled flag here.

  2982   // jni_GetField_probe() assumes that is okay to create handles.

  2983   if (JvmtiExport::should_post_field_access()) {

  2984     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  2985   }

  2986   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  2987 #ifndef USDT2

  2988   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  2989 #else /* USDT2 */

  2990   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  2991                                           ret);

  2992 #endif /* USDT2 */

  2993   return ret;

  2994 JNI_END

  2996 #ifndef USDT2

  2997 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  2998 \

  2999   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3000 \

  3001 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3002   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3003   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3004   Return ret = 0;\

  3005   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3006                      (const Return&)ret);\

  3007   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3008   assert(id->is_static_field_id(), "invalid static field id"); \

  3009   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3010   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3011   if (JvmtiExport::should_post_field_access()) { \

  3012     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3013   } \

  3014   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3015   return ret;\

  3016 JNI_END

  3018 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3019 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3020 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3021 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3022 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3023 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3024 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3025 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3027 #else /* USDT2 */

  3029 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3030                               , EntryProbe, ReturnProbe) \

  3031 \

  3032   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3033                           , ReturnProbe);                                          \

  3034 \

  3035 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3036   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3037   EntryProbe; \

  3038   Return ret = 0;\

  3039   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3040                      (const Return&)ret);\

  3041   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3042   assert(id->is_static_field_id(), "invalid static field id"); \

  3043   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3044   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3045   if (JvmtiExport::should_post_field_access()) { \

  3046     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3047   } \

  3048   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3049   return ret;\

  3050 JNI_END

  3052 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3053                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3054 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3055                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3056 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3057                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3058 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3059                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3060 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3061                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3062 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3063                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3064 // Float and double probes don't return value because dtrace doesn't currently support it

  3065 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3066                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3067 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3068                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3069 #endif /* USDT2 */

  3071 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3072   JNIWrapper("SetStaticObjectField");

  3073 #ifndef USDT2

  3074   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3075 #else /* USDT2 */

  3076  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3077                                         env, clazz, (uintptr_t) fieldID, value);

  3078 #endif /* USDT2 */

  3079   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3080   assert(id->is_static_field_id(), "invalid static field id");

  3081   // Keep JVMTI addition small and only check enabled flag here.

  3082   // jni_SetField_probe() assumes that is okay to create handles.

  3083   if (JvmtiExport::should_post_field_modification()) {

  3084     jvalue field_value;

  3085     field_value.l = value;

  3086     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3087   }

  3088   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3089 #ifndef USDT2

  3090   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3091 #else /* USDT2 */

  3092   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3093                                           );

  3094 #endif /* USDT2 */

  3095 JNI_END

  3098 #ifndef USDT2

  3099 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3100 \

  3101 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3102   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3103   FP_SELECT_##Result( \

  3104      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3105      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3106 \

  3107   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3108   assert(id->is_static_field_id(), "invalid static field id"); \

  3109   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3110   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3111   if (JvmtiExport::should_post_field_modification()) { \

  3112     jvalue field_value; \

  3113     field_value.unionType = value; \

  3114     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3115   } \

  3116   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3117   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3118 JNI_END

  3120 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3121 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3122 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3123 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3124 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3125 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3126 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3127 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3129 #else /* USDT2 */

  3131 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3132                               , EntryProbe, ReturnProbe) \

  3133 \

  3134 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3135   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3136   EntryProbe; \

  3137 \

  3138   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3139   assert(id->is_static_field_id(), "invalid static field id"); \

  3140   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3141   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3142   if (JvmtiExport::should_post_field_modification()) { \

  3143     jvalue field_value; \

  3144     field_value.unionType = value; \

  3145     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3146   } \

  3147   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3148   ReturnProbe;\

  3149 JNI_END

  3151 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3152                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3153                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3154 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3155                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3156                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3157 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3158                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3159                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3160 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3161                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3162                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3163 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3164                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3165                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3166 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3167                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3168                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3169 // Float and double probes don't return value because dtrace doesn't currently support it

  3170 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3171                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3172                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3173 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3174                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3175                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3176 #endif /* USDT2 */

  3178 //

  3179 // String Operations

  3180 //

  3182 // Unicode Interface

  3184 #ifndef USDT2

  3185 DT_RETURN_MARK_DECL(NewString, jstring);

  3186 #else /* USDT2 */

  3187 DT_RETURN_MARK_DECL(NewString, jstring

  3188                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3189 #endif /* USDT2 */

  3191 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3192   JNIWrapper("NewString");

  3193 #ifndef USDT2

  3194   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3195 #else /* USDT2 */

  3196  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3197                              env, (uint16_t *) unicodeChars, len);

  3198 #endif /* USDT2 */

  3199   jstring ret = NULL;

  3200   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3201   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3202   ret = (jstring) JNIHandles::make_local(env, string);

  3203   return ret;

  3204 JNI_END

  3207 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3208   JNIWrapper("GetStringLength");

  3209 #ifndef USDT2

  3210   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3211 #else /* USDT2 */

  3212   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3213                                     env, string);

  3214 #endif /* USDT2 */

  3215   jsize ret = 0;

  3216   oop s = JNIHandles::resolve_non_null(string);

  3217   if (java_lang_String::value(s) != NULL) {

  3218     ret = java_lang_String::length(s);

  3219   }

  3220 #ifndef USDT2

  3221   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3222 #else /* USDT2 */

  3223  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3224                                     ret);

  3225 #endif /* USDT2 */

  3226   return ret;

  3227 JNI_END

  3230 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3231   JNIEnv *env, jstring string, jboolean *isCopy))

  3232   JNIWrapper("GetStringChars");

  3233 #ifndef USDT2

  3234   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3235 #else /* USDT2 */

  3236  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3237                                   env, string, (uintptr_t *) isCopy);

  3238 #endif /* USDT2 */

  3239   jchar* buf = NULL;

  3240   oop s = JNIHandles::resolve_non_null(string);

  3241   typeArrayOop s_value = java_lang_String::value(s);

  3242   if (s_value != NULL) {

  3243     int s_len = java_lang_String::length(s);

  3244     int s_offset = java_lang_String::offset(s);

  3245     buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3246     /* JNI Specification states return NULL on OOM */

  3247     if (buf != NULL) {

  3248       if (s_len > 0) {

  3249         memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3250       }

  3251       buf[s_len] = 0;

  3252       //%note jni_5

  3253       if (isCopy != NULL) {

  3254         *isCopy = JNI_TRUE;

  3255       }

  3256     }

  3257   }

  3258 #ifndef USDT2

  3259   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3260 #else /* USDT2 */

  3261   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3262                                     buf);

  3263 #endif /* USDT2 */

  3264   return buf;

  3265 JNI_END

  3268 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3269   JNIWrapper("ReleaseStringChars");

  3270 #ifndef USDT2

  3271   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3272 #else /* USDT2 */

  3273   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3274                                        env, str, (uint16_t *) chars);

  3275 #endif /* USDT2 */

  3276   //%note jni_6

  3277   if (chars != NULL) {

  3278     // Since String objects are supposed to be immutable, don't copy any

  3279     // new data back.  A bad user will have to go after the char array.

  3280     FreeHeap((void*) chars);

  3281   }

  3282 #ifndef USDT2

  3283   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3284 #else /* USDT2 */

  3285   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3286 );

  3287 #endif /* USDT2 */

  3288 JNI_END

  3291 // UTF Interface

  3293 #ifndef USDT2

  3294 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3295 #else /* USDT2 */

  3296 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3297                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3298 #endif /* USDT2 */

  3300 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3301   JNIWrapper("NewStringUTF");

  3302 #ifndef USDT2

  3303   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3304 #else /* USDT2 */

  3305   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3306                                  env, (char *) bytes);

  3307 #endif /* USDT2 */

  3308   jstring ret;

  3309   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3311   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3312   ret = (jstring) JNIHandles::make_local(env, result);

  3313   return ret;

  3314 JNI_END

  3317 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3318   JNIWrapper("GetStringUTFLength");

  3319 #ifndef USDT2

  3320   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3321 #else /* USDT2 */

  3322  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3323                                       env, string);

  3324 #endif /* USDT2 */

  3325   jsize ret = 0;

  3326   oop java_string = JNIHandles::resolve_non_null(string);

  3327   if (java_lang_String::value(java_string) != NULL) {

  3328     ret = java_lang_String::utf8_length(java_string);

  3329   }

  3330 #ifndef USDT2

  3331   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3332 #else /* USDT2 */

  3333   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3334                                         ret);

  3335 #endif /* USDT2 */

  3336   return ret;

  3337 JNI_END

  3340 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3341   JNIWrapper("GetStringUTFChars");

  3342 #ifndef USDT2

  3343   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3344 #else /* USDT2 */

  3345  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3346                                      env, string, (uintptr_t *) isCopy);

  3347 #endif /* USDT2 */

  3348   char* result = NULL;

  3349   oop java_string = JNIHandles::resolve_non_null(string);

  3350   if (java_lang_String::value(java_string) != NULL) {

  3351     size_t length = java_lang_String::utf8_length(java_string);

  3352     /* JNI Specification states return NULL on OOM */

  3353     result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);

  3354     if (result != NULL) {

  3355       java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3356       if (isCopy != NULL) {

  3357         *isCopy = JNI_TRUE;

  3358       }

  3359     }

  3360   }

  3361 #ifndef USDT2

  3362   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3363 #else /* USDT2 */

  3364  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3365                                       result);

  3366 #endif /* USDT2 */

  3367   return result;

  3368 JNI_END

  3371 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3372   JNIWrapper("ReleaseStringUTFChars");

  3373 #ifndef USDT2

  3374   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3375 #else /* USDT2 */

  3376  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3377                                          env, str, (char *) chars);

  3378 #endif /* USDT2 */

  3379   if (chars != NULL) {

  3380     FreeHeap((char*) chars);

  3381   }

  3382 #ifndef USDT2

  3383   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3384 #else /* USDT2 */

  3385 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3386 );

  3387 #endif /* USDT2 */

  3388 JNI_END

  3391 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3392   JNIWrapper("GetArrayLength");

  3393 #ifndef USDT2

  3394   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3395 #else /* USDT2 */

  3396  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3397                                   env, array);

  3398 #endif /* USDT2 */

  3399   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3400   assert(a->is_array(), "must be array");

  3401   jsize ret = a->length();

  3402 #ifndef USDT2

  3403   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3404 #else /* USDT2 */

  3405  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3406                                    ret);

  3407 #endif /* USDT2 */

  3408   return ret;

  3409 JNI_END

  3412 //

  3413 // Object Array Operations

  3414 //

  3416 #ifndef USDT2

  3417 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3418 #else /* USDT2 */

  3419 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3420                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3421 #endif /* USDT2 */

  3423 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3424   JNIWrapper("NewObjectArray");

  3425 #ifndef USDT2

  3426   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3427 #else /* USDT2 */

  3428  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3429                                   env, length, elementClass, initialElement);

  3430 #endif /* USDT2 */

  3431   jobjectArray ret = NULL;

  3432   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3433   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3434   Klass* ako = ek()->array_klass(CHECK_NULL);

  3435   KlassHandle ak = KlassHandle(THREAD, ako);

  3436   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3437   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3438   oop initial_value = JNIHandles::resolve(initialElement);

  3439   if (initial_value != NULL) {  // array already initialized with NULL

  3440     for (int index = 0; index < length; index++) {

  3441       result->obj_at_put(index, initial_value);

  3442     }

  3443   }

  3444   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3445   return ret;

  3446 JNI_END

  3448 #ifndef USDT2

  3449 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3450 #else /* USDT2 */

  3451 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3452                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3453 #endif /* USDT2 */

  3455 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3456   JNIWrapper("GetObjectArrayElement");

  3457 #ifndef USDT2

  3458   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3459 #else /* USDT2 */

  3460  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3461                                          env, array, index);

  3462 #endif /* USDT2 */

  3463   jobject ret = NULL;

  3464   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3465   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3466   if (a->is_within_bounds(index)) {

  3467     ret = JNIHandles::make_local(env, a->obj_at(index));

  3468     return ret;

  3469   } else {

  3470     char buf[jintAsStringSize];

  3471     sprintf(buf, "%d", index);

  3472     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3473   }

  3474 JNI_END

  3476 #ifndef USDT2

  3477 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3478 #else /* USDT2 */

  3479 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3480                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3481 #endif /* USDT2 */

  3483 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3484   JNIWrapper("SetObjectArrayElement");

  3485 #ifndef USDT2

  3486   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3487 #else /* USDT2 */

  3488  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3489                                          env, array, index, value);

  3490 #endif /* USDT2 */

  3491   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3493   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3494   oop v = JNIHandles::resolve(value);

  3495   if (a->is_within_bounds(index)) {

  3496     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3497       a->obj_at_put(index, v);

  3498     } else {

  3499       THROW(vmSymbols::java_lang_ArrayStoreException());

  3500     }

  3501   } else {

  3502     char buf[jintAsStringSize];

  3503     sprintf(buf, "%d", index);

  3504     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3505   }

  3506 JNI_END

  3509 #ifndef USDT2

  3510 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3511 \

  3512   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3513 \

  3514 JNI_ENTRY(Return, \

  3515           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3516   JNIWrapper("New" XSTR(Result) "Array"); \

  3517   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3518   Return ret = NULL;\

  3519   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3520 \

  3521   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3522   ret = (Return) JNIHandles::make_local(env, obj); \

  3523   return ret;\

  3524 JNI_END

  3526 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3527 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3528 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3529 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3530 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3531 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3532 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3533 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3535 #else /* USDT2 */

  3537 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3538                               ,EntryProbe,ReturnProbe)  \

  3539 \

  3540   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3541                       , ReturnProbe); \

  3542 \

  3543 JNI_ENTRY(Return, \

  3544           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3545   JNIWrapper("New" XSTR(Result) "Array"); \

  3546   EntryProbe; \

  3547   Return ret = NULL;\

  3548   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3549 \

  3550   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3551   ret = (Return) JNIHandles::make_local(env, obj); \

  3552   return ret;\

  3553 JNI_END

  3555 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3556                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3557                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3558 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3559                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3560                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3561 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3562                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3563                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3564 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3565                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3566                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3567 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3568                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3569                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3570 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3571                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3572                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3573 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3574                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3575                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3576 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3577                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3578                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3579 #endif /* USDT2 */

  3581 // Return an address which will fault if the caller writes to it.

  3583 static char* get_bad_address() {

  3584   static char* bad_address = NULL;

  3585   if (bad_address == NULL) {

  3586     size_t size = os::vm_allocation_granularity();

  3587     bad_address = os::reserve_memory(size);

  3588     if (bad_address != NULL) {

  3589       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3590                          /*is_committed*/false);

  3591     }

  3592   }

  3593   return bad_address;

  3594 }

  3597 #ifndef USDT2

  3598 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3599 \

  3600 JNI_QUICK_ENTRY(ElementType*, \

  3601           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3602   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3603   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3604   /* allocate an chunk of memory in c land */ \

  3605   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3606   ElementType* result; \

  3607   int len = a->length(); \

  3608   if (len == 0) { \

  3609     /* Empty array: legal but useless, can't return NULL. \

  3610      * Return a pointer to something useless. \

  3611      * Avoid asserts in typeArrayOop. */ \

  3612     result = (ElementType*)get_bad_address(); \

  3613   } else { \

  3614     /* JNI Specification states return NULL on OOM */                    \

  3615     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3616     if (result != NULL) {                                                \

  3617       /* copy the array to the c chunk */                                \

  3618       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3619       if (isCopy) {                                                      \

  3620         *isCopy = JNI_TRUE;                                              \

  3621       }                                                                  \

  3622     }                                                                    \

  3623   } \

  3624   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3625   return result; \

  3626 JNI_END

  3628 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3629 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3630 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3631 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3632 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3633 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3634 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3635 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3637 #else /* USDT2 */

  3639 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3640                                       , EntryProbe, ReturnProbe) \

  3641 \

  3642 JNI_QUICK_ENTRY(ElementType*, \

  3643           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3644   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3645   EntryProbe; \

  3646   /* allocate an chunk of memory in c land */ \

  3647   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3648   ElementType* result; \

  3649   int len = a->length(); \

  3650   if (len == 0) { \

  3651     /* Empty array: legal but useless, can't return NULL. \

  3652      * Return a pointer to something useless. \

  3653      * Avoid asserts in typeArrayOop. */ \

  3654     result = (ElementType*)get_bad_address(); \

  3655   } else { \

  3656     /* JNI Specification states return NULL on OOM */                    \

  3657     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3658     if (result != NULL) {                                                \

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

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

  3661       if (isCopy) {                                                      \

  3662         *isCopy = JNI_TRUE;                                              \

  3663       }                                                                  \

  3664     }                                                                    \

  3665   } \

  3666   ReturnProbe; \

  3667   return result; \

  3668 JNI_END

  3670 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

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

  3672                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3673 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3674                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3675                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3676 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

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

  3678                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3679 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3680                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3681                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3682 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

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

  3684                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3685 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3686                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3687                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3688 // Float and double probes don't return value because dtrace doesn't currently support it

  3689 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

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

  3691                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3692 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3693                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3694                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3695 #endif /* USDT2 */

  3697 #ifndef USDT2

  3698 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3699 \

  3700 JNI_QUICK_ENTRY(void, \

  3701           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3702                                              ElementType *buf, jint mode)) \

  3703   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3704   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3705   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3706   int len = a->length(); \

  3707   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

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

  3709       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3710     } \

  3711     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3712       FreeHeap(buf); \

  3713     } \

  3714   } \

  3715   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3716 JNI_END

  3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3722 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3723 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3724 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3725 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3727 #else /* USDT2 */

  3729 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3730                                           , EntryProbe, ReturnProbe);\

  3731 \

  3732 JNI_QUICK_ENTRY(void, \

  3733           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3734                                              ElementType *buf, jint mode)) \

  3735   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3736   EntryProbe; \

  3737   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3738   int len = a->length(); \

  3739   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

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

  3741       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3742     } \

  3743     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3744       FreeHeap(buf); \

  3745     } \

  3746   } \

  3747   ReturnProbe; \

  3748 JNI_END

  3750 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3751                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3752                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3753 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3754                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3755                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3756 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

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

  3758                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3759 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3760                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3761                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3762 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3763                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3764                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3765 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3766                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3767                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3768 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3769                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3770                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3771 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3772                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3773                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3774 #endif /* USDT2 */

  3776 #ifndef USDT2

  3777 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3778   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3779 \

  3780 JNI_ENTRY(void, \

  3781 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3782              jsize len, ElementType *buf)) \

  3783   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3784   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3785   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3786   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3787   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3788     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3789   } else { \

  3790     if (len > 0) { \

  3791       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3792       memcpy((u_char*) buf, \

  3793              (u_char*) src->Tag##_at_addr(start), \

  3794              len << sc);                          \

  3795     } \

  3796   } \

  3797 JNI_END

  3799 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3800 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3801 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3802 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3803 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3804 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3805 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3806 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3808 #else /* USDT2 */

  3810 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3811                                     , EntryProbe, ReturnProbe); \

  3812   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3813                            , ReturnProbe); \

  3814 \

  3815 JNI_ENTRY(void, \

  3816 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3817              jsize len, ElementType *buf)) \

  3818   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3819   EntryProbe; \

  3820   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3821   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3822   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3823     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3824   } else { \

  3825     if (len > 0) { \

  3826       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3827       memcpy((u_char*) buf, \

  3828              (u_char*) src->Tag##_at_addr(start), \

  3829              len << sc);                          \

  3830     } \

  3831   } \

  3832 JNI_END

  3834 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3835                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3836                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3837 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3838                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3839                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3840 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3841                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3842                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3843 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3844                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3845                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3846 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3847                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3848                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3849 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3850                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3851                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3852 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3853                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3854                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3855 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3856                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3857                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3858 #endif /* USDT2 */

  3860 #ifndef USDT2

  3861 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3862   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3863 \

  3864 JNI_ENTRY(void, \

  3865 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3866              jsize len, const ElementType *buf)) \

  3867   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3868   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3869   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3870   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3871   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3872     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3873   } else { \

  3874     if (len > 0) { \

  3875       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3876       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3877              (u_char*) buf, \

  3878              len << sc);    \

  3879     } \

  3880   } \

  3881 JNI_END

  3883 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3884 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3885 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3886 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3887 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3888 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3889 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3890 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3892 #else /* USDT2 */

  3894 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3895                                     , EntryProbe, ReturnProbe); \

  3896   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3897                            ,ReturnProbe);           \

  3898 \

  3899 JNI_ENTRY(void, \

  3900 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3901              jsize len, const ElementType *buf)) \

  3902   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3903   EntryProbe; \

  3904   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3905   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3906   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3907     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3908   } else { \

  3909     if (len > 0) { \

  3910       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3911       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3912              (u_char*) buf, \

  3913              len << sc);    \

  3914     } \

  3915   } \

  3916 JNI_END

  3918 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3919                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3920                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3921 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3922                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3923                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3924 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3925                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3926                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3927 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3928                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3929                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3930 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3931                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3932                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3933 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3934                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3935                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3936 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3937                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3938                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3939 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3940                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3941                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3942 #endif /* USDT2 */

  3945 //

  3946 // Interception of natives

  3947 //

  3949 // The RegisterNatives call being attempted tried to register with a method that

  3950 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3951 // to see if the native method is now wrapped with the prefixes.  See the

  3952 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3953 static Method* find_prefixed_native(KlassHandle k,

  3954                                       Symbol* name, Symbol* signature, TRAPS) {

  3955 #if INCLUDE_JVMTI

  3956   ResourceMark rm(THREAD);

  3957   Method* method;

  3958   int name_len = name->utf8_length();

  3959   char* name_str = name->as_utf8();

  3960   int prefix_count;

  3961   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3962   for (int i = 0; i < prefix_count; i++) {

  3963     char* prefix = prefixes[i];

  3964     int prefix_len = (int)strlen(prefix);

  3966     // try adding this prefix to the method name and see if it matches another method name

  3967     int trial_len = name_len + prefix_len;

  3968     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3969     strcpy(trial_name_str, prefix);

  3970     strcat(trial_name_str, name_str);

  3971     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3972     if (trial_name == NULL) {

  3973       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3974     }

  3975     method = k()->lookup_method(trial_name, signature);

  3976     if (method == NULL) {

  3977       continue; // signature doesn't match, try the next prefix

  3978     }

  3979     if (method->is_native()) {

  3980       method->set_is_prefixed_native();

  3981       return method; // wahoo, we found a prefixed version of the method, return it

  3982     }

  3983     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3984     name_len = trial_len;

  3985     name_str = trial_name_str;

  3986   }

  3987 #endif // INCLUDE_JVMTI

  3988   return NULL; // not found

  3989 }

  3991 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3992   Method* method = k()->lookup_method(name, signature);

  3993   if (method == NULL) {

  3994     ResourceMark rm;

  3995     stringStream st;

  3996     st.print("Method %s name or signature does not match",

  3997              Method::name_and_sig_as_C_string(k(), name, signature));

  3998     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3999   }

  4000   if (!method->is_native()) {

  4001     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  4002     method = find_prefixed_native(k, name, signature, THREAD);

  4003     if (method == NULL) {

  4004       ResourceMark rm;

  4005       stringStream st;

  4006       st.print("Method %s is not declared as native",

  4007                Method::name_and_sig_as_C_string(k(), name, signature));

  4008       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4009     }

  4010   }

  4012   if (entry != NULL) {

  4013     method->set_native_function(entry,

  4014       Method::native_bind_event_is_interesting);

  4015   } else {

  4016     method->clear_native_function();

  4017   }

  4018   if (PrintJNIResolving) {

  4019     ResourceMark rm(THREAD);

  4020     tty->print_cr("[Registering JNI native method %s.%s]",

  4021       method->method_holder()->external_name(),

  4022       method->name()->as_C_string());

  4023   }

  4024   return true;

  4025 }

  4027 #ifndef USDT2

  4028 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4029 #else /* USDT2 */

  4030 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4031                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4032 #endif /* USDT2 */

  4034 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4035                                     const JNINativeMethod *methods,

  4036                                     jint nMethods))

  4037   JNIWrapper("RegisterNatives");

  4038 #ifndef USDT2

  4039   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4040 #else /* USDT2 */

  4041   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4042                                     env, clazz, (void *) methods, nMethods);

  4043 #endif /* USDT2 */

  4044   jint ret = 0;

  4045   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4047   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4049   for (int index = 0; index < nMethods; index++) {

  4050     const char* meth_name = methods[index].name;

  4051     const char* meth_sig = methods[index].signature;

  4052     int meth_name_len = (int)strlen(meth_name);

  4054     // The class should have been loaded (we have an instance of the class

  4055     // passed in) so the method and signature should already be in the symbol

  4056     // table.  If they're not there, the method doesn't exist.

  4057     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4058     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4060     if (name == NULL || signature == NULL) {

  4061       ResourceMark rm;

  4062       stringStream st;

  4063       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4064       // Must return negative value on failure

  4065       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4066     }

  4068     bool res = register_native(h_k, name, signature,

  4069                                (address) methods[index].fnPtr, THREAD);

  4070     if (!res) {

  4071       ret = -1;

  4072       break;

  4073     }

  4074   }

  4075   return ret;

  4076 JNI_END

  4079 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4080   JNIWrapper("UnregisterNatives");

  4081 #ifndef USDT2

  4082   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4083 #else /* USDT2 */

  4084  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4085                                      env, clazz);

  4086 #endif /* USDT2 */

  4087   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4088   //%note jni_2

  4089   if (k->oop_is_instance()) {

  4090     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4091       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4092       if (m->is_native()) {

  4093         m->clear_native_function();

  4094         m->set_signature_handler(NULL);

  4095       }

  4096     }

  4097   }

  4098 #ifndef USDT2

  4099   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4100 #else /* USDT2 */

  4101  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4102                                       0);

  4103 #endif /* USDT2 */

  4104   return 0;

  4105 JNI_END

  4107 //

  4108 // Monitor functions

  4109 //

  4111 #ifndef USDT2

  4112 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4113 #else /* USDT2 */

  4114 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4115                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4116 #endif /* USDT2 */

  4118 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4119 #ifndef USDT2

  4120   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4121 #else /* USDT2 */

  4122  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4123                                 env, jobj);

  4124 #endif /* USDT2 */

  4125   jint ret = JNI_ERR;

  4126   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4128   // If the object is null, we can't do anything with it

  4129   if (jobj == NULL) {

  4130     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4131   }

  4133   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4134   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4135   ret = JNI_OK;

  4136   return ret;

  4137 JNI_END

  4139 #ifndef USDT2

  4140 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4141 #else /* USDT2 */

  4142 DT_RETURN_MARK_DECL(MonitorExit, jint

  4143                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4144 #endif /* USDT2 */

  4146 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4147 #ifndef USDT2

  4148   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4149 #else /* USDT2 */

  4150  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4151                                env, jobj);

  4152 #endif /* USDT2 */

  4153   jint ret = JNI_ERR;

  4154   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4156   // Don't do anything with a null object

  4157   if (jobj == NULL) {

  4158     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4159   }

  4161   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4162   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4164   ret = JNI_OK;

  4165   return ret;

  4166 JNI_END

  4168 //

  4169 // Extensions

  4170 //

  4172 #ifndef USDT2

  4173 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4174 #else /* USDT2 */

  4175 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4176                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4177 #endif /* USDT2 */

  4179 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4180   JNIWrapper("GetStringRegion");

  4181 #ifndef USDT2

  4182   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4183 #else /* USDT2 */

  4184  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4185                                    env, string, start, len, buf);

  4186 #endif /* USDT2 */

  4187   DT_VOID_RETURN_MARK(GetStringRegion);

  4188   oop s = JNIHandles::resolve_non_null(string);

  4189   int s_len = java_lang_String::length(s);

  4190   if (start < 0 || len < 0 || start + len > s_len) {

  4191     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4192   } else {

  4193     if (len > 0) {

  4194       int s_offset = java_lang_String::offset(s);

  4195       typeArrayOop s_value = java_lang_String::value(s);

  4196       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4197     }

  4198   }

  4199 JNI_END

  4201 #ifndef USDT2

  4202 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4203 #else /* USDT2 */

  4204 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4205                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4206 #endif /* USDT2 */

  4208 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4209   JNIWrapper("GetStringUTFRegion");

  4210 #ifndef USDT2

  4211   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4212 #else /* USDT2 */

  4213  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4214                                       env, string, start, len, buf);

  4215 #endif /* USDT2 */

  4216   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4217   oop s = JNIHandles::resolve_non_null(string);

  4218   int s_len = java_lang_String::length(s);

  4219   if (start < 0 || len < 0 || start + len > s_len) {

  4220     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4221   } else {

  4222     //%note jni_7

  4223     if (len > 0) {

  4224       ResourceMark rm(THREAD);

  4225       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4226       int utf_len = (int)strlen(utf_region);

  4227       memcpy(buf, utf_region, utf_len);

  4228       buf[utf_len] = 0;

  4229     } else {

  4230       // JDK null-terminates the buffer even in len is zero

  4231       if (buf != NULL) {

  4232         buf[0] = 0;

  4233       }

  4234     }

  4235   }

  4236 JNI_END

  4239 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4240   JNIWrapper("GetPrimitiveArrayCritical");

  4241 #ifndef USDT2

  4242   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4243 #else /* USDT2 */

  4244  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4245                                              env, array, (uintptr_t *) isCopy);

  4246 #endif /* USDT2 */

  4247   GC_locker::lock_critical(thread);

  4248   if (isCopy != NULL) {

  4249     *isCopy = JNI_FALSE;

  4250   }

  4251   oop a = JNIHandles::resolve_non_null(array);

  4252   assert(a->is_array(), "just checking");

  4253   BasicType type;

  4254   if (a->is_objArray()) {

  4255     type = T_OBJECT;

  4256   } else {

  4257     type = TypeArrayKlass::cast(a->klass())->element_type();

  4258   }

  4259   void* ret = arrayOop(a)->base(type);

  4260 #ifndef USDT2

  4261   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4262 #else /* USDT2 */

  4263  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4264                                               ret);

  4265 #endif /* USDT2 */

  4266   return ret;

  4267 JNI_END

  4270 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4271   JNIWrapper("ReleasePrimitiveArrayCritical");

  4272 #ifndef USDT2

  4273   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4274 #else /* USDT2 */

  4275   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4276                                                   env, array, carray, mode);

  4277 #endif /* USDT2 */

  4278   // The array, carray and mode arguments are ignored

  4279   GC_locker::unlock_critical(thread);

  4280 #ifndef USDT2

  4281   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4282 #else /* USDT2 */

  4283 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4284 );

  4285 #endif /* USDT2 */

  4286 JNI_END

  4289 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4290   JNIWrapper("GetStringCritical");

  4291 #ifndef USDT2

  4292   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4293 #else /* USDT2 */

  4294   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4295                                       env, string, (uintptr_t *) isCopy);

  4296 #endif /* USDT2 */

  4297   GC_locker::lock_critical(thread);

  4298   if (isCopy != NULL) {

  4299     *isCopy = JNI_FALSE;

  4300   }

  4301   oop s = JNIHandles::resolve_non_null(string);

  4302   int s_len = java_lang_String::length(s);

  4303   typeArrayOop s_value = java_lang_String::value(s);

  4304   int s_offset = java_lang_String::offset(s);

  4305   const jchar* ret;

  4306   if (s_len > 0) {

  4307     ret = s_value->char_at_addr(s_offset);

  4308   } else {

  4309     ret = (jchar*) s_value->base(T_CHAR);

  4310   }

  4311 #ifndef USDT2

  4312   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4313 #else /* USDT2 */

  4314  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4315                                       (uint16_t *) ret);

  4316 #endif /* USDT2 */

  4317   return ret;

  4318 JNI_END

  4321 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4322   JNIWrapper("ReleaseStringCritical");

  4323 #ifndef USDT2

  4324   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4325 #else /* USDT2 */

  4326   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4327                                           env, str, (uint16_t *) chars);

  4328 #endif /* USDT2 */

  4329   // The str and chars arguments are ignored

  4330   GC_locker::unlock_critical(thread);

  4331 #ifndef USDT2

  4332   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4333 #else /* USDT2 */

  4334 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4335 );

  4336 #endif /* USDT2 */

  4337 JNI_END

  4340 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4341   JNIWrapper("jni_NewWeakGlobalRef");

  4342 #ifndef USDT2

  4343   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4344 #else /* USDT2 */

  4345  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4346                                     env, ref);

  4347 #endif /* USDT2 */

  4348   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4349   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4350 #ifndef USDT2

  4351   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4352 #else /* USDT2 */

  4353  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4354                                      ret);

  4355 #endif /* USDT2 */

  4356   return ret;

  4357 JNI_END

  4359 // Must be JNI_ENTRY (with HandleMark)

  4360 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4361   JNIWrapper("jni_DeleteWeakGlobalRef");

  4362 #ifndef USDT2

  4363   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4364 #else /* USDT2 */

  4365   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4366                                         env, ref);

  4367 #endif /* USDT2 */

  4368   JNIHandles::destroy_weak_global(ref);

  4369 #ifndef USDT2

  4370   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4371 #else /* USDT2 */

  4372   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4373                                          );

  4374 #endif /* USDT2 */

  4375 JNI_END

  4378 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4379   JNIWrapper("jni_ExceptionCheck");

  4380 #ifndef USDT2

  4381   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4382 #else /* USDT2 */

  4383  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4384                                   env);

  4385 #endif /* USDT2 */

  4386   jni_check_async_exceptions(thread);

  4387   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4388 #ifndef USDT2

  4389   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4390 #else /* USDT2 */

  4391  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4392                                    ret);

  4393 #endif /* USDT2 */

  4394   return ret;

  4395 JNI_END

  4398 // Initialization state for three routines below relating to

  4399 // java.nio.DirectBuffers

  4400 static          jint directBufferSupportInitializeStarted = 0;

  4401 static volatile jint directBufferSupportInitializeEnded   = 0;

  4402 static volatile jint directBufferSupportInitializeFailed  = 0;

  4403 static jclass    bufferClass                 = NULL;

  4404 static jclass    directBufferClass           = NULL;

  4405 static jclass    directByteBufferClass       = NULL;

  4406 static jmethodID directByteBufferConstructor = NULL;

  4407 static jfieldID  directBufferAddressField    = NULL;

  4408 static jfieldID  bufferCapacityField         = NULL;

  4410 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4411   Handle loader;            // null (bootstrap) loader

  4412   Handle protection_domain; // null protection domain

  4414   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4415   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4417   if (TraceClassResolution && result != NULL) {

  4418     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4419   }

  4420   return result;

  4421 }

  4423 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4424 // circumvent any security checks that would be done by jni_FindClass.

  4425 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4426 {

  4427   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4428   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4429   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4430   return true;

  4431 }

  4432 JNI_END

  4435 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4436   if (directBufferSupportInitializeFailed) {

  4437     return false;

  4438   }

  4440   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4441     if (!lookupDirectBufferClasses(env)) {

  4442       directBufferSupportInitializeFailed = 1;

  4443       return false;

  4444     }

  4446     // Make global references for these

  4447     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4448     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4449     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4451     // Get needed field and method IDs

  4452     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4453     if (env->ExceptionCheck()) {

  4454       env->ExceptionClear();

  4455       directBufferSupportInitializeFailed = 1;

  4456       return false;

  4457     }

  4458     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4459     if (env->ExceptionCheck()) {

  4460       env->ExceptionClear();

  4461       directBufferSupportInitializeFailed = 1;

  4462       return false;

  4463     }

  4464     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4465     if (env->ExceptionCheck()) {

  4466       env->ExceptionClear();

  4467       directBufferSupportInitializeFailed = 1;

  4468       return false;

  4469     }

  4471     if ((directByteBufferConstructor == NULL) ||

  4472         (directBufferAddressField    == NULL) ||

  4473         (bufferCapacityField         == NULL)) {

  4474       directBufferSupportInitializeFailed = 1;

  4475       return false;

  4476     }

  4478     directBufferSupportInitializeEnded = 1;

  4479   } else {

  4480     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4481       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4482       // os::sleep which requires the VM state transition. On other platforms, it

  4483       // is not necessary. The following call to change the VM state is purposely

  4484       // put inside the loop to avoid potential deadlock when multiple threads

  4485       // try to call this method. See 6791815 for more details.

  4486       ThreadInVMfromNative tivn(thread);

  4487       os::yield_all();

  4488     }

  4489   }

  4491   return !directBufferSupportInitializeFailed;

  4492 }

  4494 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4495 {

  4496   // thread_from_jni_environment() will block if VM is gone.

  4497   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4499   JNIWrapper("jni_NewDirectByteBuffer");

  4500 #ifndef USDT2

  4501   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4502 #else /* USDT2 */

  4503  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4504                                        env, address, capacity);

  4505 #endif /* USDT2 */

  4507   if (!directBufferSupportInitializeEnded) {

  4508     if (!initializeDirectBufferSupport(env, thread)) {

  4509 #ifndef USDT2

  4510       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4511 #else /* USDT2 */

  4512       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4513                                              NULL);

  4514 #endif /* USDT2 */

  4515       return NULL;

  4516     }

  4517   }

  4519   // Being paranoid about accidental sign extension on address

  4520   jlong addr = (jlong) ((uintptr_t) address);

  4521   // NOTE that package-private DirectByteBuffer constructor currently

  4522   // takes int capacity

  4523   jint  cap  = (jint)  capacity;

  4524   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4525 #ifndef USDT2

  4526   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4527 #else /* USDT2 */

  4528   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4529                                          ret);

  4530 #endif /* USDT2 */

  4531   return ret;

  4532 }

  4534 #ifndef USDT2

  4535 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4536 #else /* USDT2 */

  4537 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4538                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4539 #endif /* USDT2 */

  4541 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4542 {

  4543   // thread_from_jni_environment() will block if VM is gone.

  4544   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4546   JNIWrapper("jni_GetDirectBufferAddress");

  4547 #ifndef USDT2

  4548   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4549 #else /* USDT2 */

  4550   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4551                                            env, buf);

  4552 #endif /* USDT2 */

  4553   void* ret = NULL;

  4554   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4556   if (!directBufferSupportInitializeEnded) {

  4557     if (!initializeDirectBufferSupport(env, thread)) {

  4558       return 0;

  4559     }

  4560   }

  4562   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4563     return 0;

  4564   }

  4566   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4567   return ret;

  4568 }

  4570 #ifndef USDT2

  4571 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4572 #else /* USDT2 */

  4573 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4574                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4575 #endif /* USDT2 */

  4577 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4578 {

  4579   // thread_from_jni_environment() will block if VM is gone.

  4580   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4582   JNIWrapper("jni_GetDirectBufferCapacity");

  4583 #ifndef USDT2

  4584   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4585 #else /* USDT2 */

  4586   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4587                                             env, buf);

  4588 #endif /* USDT2 */

  4589   jlong ret = -1;

  4590   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4592   if (!directBufferSupportInitializeEnded) {

  4593     if (!initializeDirectBufferSupport(env, thread)) {

  4594       ret = 0;

  4595       return ret;

  4596     }

  4597   }

  4599   if (buf == NULL) {

  4600     return -1;

  4601   }

  4603   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4604     return -1;

  4605   }

  4607   // NOTE that capacity is currently an int in the implementation

  4608   ret = env->GetIntField(buf, bufferCapacityField);

  4609   return ret;

  4610 }

  4613 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4614   JNIWrapper("GetVersion");

  4615 #ifndef USDT2

  4616   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4617 #else /* USDT2 */

  4618   HOTSPOT_JNI_GETVERSION_ENTRY(

  4619                                env);

  4620 #endif /* USDT2 */

  4621 #ifndef USDT2

  4622   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4623 #else /* USDT2 */

  4624   HOTSPOT_JNI_GETVERSION_RETURN(

  4625                                 CurrentVersion);

  4626 #endif /* USDT2 */

  4627   return CurrentVersion;

  4628 JNI_END

  4630 extern struct JavaVM_ main_vm;

  4632 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4633   JNIWrapper("jni_GetJavaVM");

  4634 #ifndef USDT2

  4635   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4636 #else /* USDT2 */

  4637   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4638                               env, (void **) vm);

  4639 #endif /* USDT2 */

  4640   *vm  = (JavaVM *)(&main_vm);

  4641 #ifndef USDT2

  4642   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4643 #else /* USDT2 */

  4644   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4645                                JNI_OK);

  4646 #endif /* USDT2 */

  4647   return JNI_OK;

  4648 JNI_END

  4650 // Structure containing all jni functions

  4651 struct JNINativeInterface_ jni_NativeInterface = {

  4652     NULL,

  4653     NULL,

  4654     NULL,

  4656     NULL,

  4658     jni_GetVersion,

  4660     jni_DefineClass,

  4661     jni_FindClass,

  4663     jni_FromReflectedMethod,

  4664     jni_FromReflectedField,

  4666     jni_ToReflectedMethod,

  4668     jni_GetSuperclass,

  4669     jni_IsAssignableFrom,

  4671     jni_ToReflectedField,

  4673     jni_Throw,

  4674     jni_ThrowNew,

  4675     jni_ExceptionOccurred,

  4676     jni_ExceptionDescribe,

  4677     jni_ExceptionClear,

  4678     jni_FatalError,

  4680     jni_PushLocalFrame,

  4681     jni_PopLocalFrame,

  4683     jni_NewGlobalRef,

  4684     jni_DeleteGlobalRef,

  4685     jni_DeleteLocalRef,

  4686     jni_IsSameObject,

  4688     jni_NewLocalRef,

  4689     jni_EnsureLocalCapacity,

  4691     jni_AllocObject,

  4692     jni_NewObject,

  4693     jni_NewObjectV,

  4694     jni_NewObjectA,

  4696     jni_GetObjectClass,

  4697     jni_IsInstanceOf,

  4699     jni_GetMethodID,

  4701     jni_CallObjectMethod,

  4702     jni_CallObjectMethodV,

  4703     jni_CallObjectMethodA,

  4704     jni_CallBooleanMethod,

  4705     jni_CallBooleanMethodV,

  4706     jni_CallBooleanMethodA,

  4707     jni_CallByteMethod,

  4708     jni_CallByteMethodV,

  4709     jni_CallByteMethodA,

  4710     jni_CallCharMethod,

  4711     jni_CallCharMethodV,

  4712     jni_CallCharMethodA,

  4713     jni_CallShortMethod,

  4714     jni_CallShortMethodV,

  4715     jni_CallShortMethodA,

  4716     jni_CallIntMethod,

  4717     jni_CallIntMethodV,

  4718     jni_CallIntMethodA,

  4719     jni_CallLongMethod,

  4720     jni_CallLongMethodV,

  4721     jni_CallLongMethodA,

  4722     jni_CallFloatMethod,

  4723     jni_CallFloatMethodV,

  4724     jni_CallFloatMethodA,

  4725     jni_CallDoubleMethod,

  4726     jni_CallDoubleMethodV,

  4727     jni_CallDoubleMethodA,

  4728     jni_CallVoidMethod,

  4729     jni_CallVoidMethodV,

  4730     jni_CallVoidMethodA,

  4732     jni_CallNonvirtualObjectMethod,

  4733     jni_CallNonvirtualObjectMethodV,

  4734     jni_CallNonvirtualObjectMethodA,

  4735     jni_CallNonvirtualBooleanMethod,

  4736     jni_CallNonvirtualBooleanMethodV,

  4737     jni_CallNonvirtualBooleanMethodA,

  4738     jni_CallNonvirtualByteMethod,

  4739     jni_CallNonvirtualByteMethodV,

  4740     jni_CallNonvirtualByteMethodA,

  4741     jni_CallNonvirtualCharMethod,

  4742     jni_CallNonvirtualCharMethodV,

  4743     jni_CallNonvirtualCharMethodA,

  4744     jni_CallNonvirtualShortMethod,

  4745     jni_CallNonvirtualShortMethodV,

  4746     jni_CallNonvirtualShortMethodA,

  4747     jni_CallNonvirtualIntMethod,

  4748     jni_CallNonvirtualIntMethodV,

  4749     jni_CallNonvirtualIntMethodA,

  4750     jni_CallNonvirtualLongMethod,

  4751     jni_CallNonvirtualLongMethodV,

  4752     jni_CallNonvirtualLongMethodA,

  4753     jni_CallNonvirtualFloatMethod,

  4754     jni_CallNonvirtualFloatMethodV,

  4755     jni_CallNonvirtualFloatMethodA,

  4756     jni_CallNonvirtualDoubleMethod,

  4757     jni_CallNonvirtualDoubleMethodV,

  4758     jni_CallNonvirtualDoubleMethodA,

  4759     jni_CallNonvirtualVoidMethod,

  4760     jni_CallNonvirtualVoidMethodV,

  4761     jni_CallNonvirtualVoidMethodA,

  4763     jni_GetFieldID,

  4765     jni_GetObjectField,

  4766     jni_GetBooleanField,

  4767     jni_GetByteField,

  4768     jni_GetCharField,

  4769     jni_GetShortField,

  4770     jni_GetIntField,

  4771     jni_GetLongField,

  4772     jni_GetFloatField,

  4773     jni_GetDoubleField,

  4775     jni_SetObjectField,

  4776     jni_SetBooleanField,

  4777     jni_SetByteField,

  4778     jni_SetCharField,

  4779     jni_SetShortField,

  4780     jni_SetIntField,

  4781     jni_SetLongField,

  4782     jni_SetFloatField,

  4783     jni_SetDoubleField,

  4785     jni_GetStaticMethodID,

  4787     jni_CallStaticObjectMethod,

  4788     jni_CallStaticObjectMethodV,

  4789     jni_CallStaticObjectMethodA,

  4790     jni_CallStaticBooleanMethod,

  4791     jni_CallStaticBooleanMethodV,

  4792     jni_CallStaticBooleanMethodA,

  4793     jni_CallStaticByteMethod,

  4794     jni_CallStaticByteMethodV,

  4795     jni_CallStaticByteMethodA,

  4796     jni_CallStaticCharMethod,

  4797     jni_CallStaticCharMethodV,

  4798     jni_CallStaticCharMethodA,

  4799     jni_CallStaticShortMethod,

  4800     jni_CallStaticShortMethodV,

  4801     jni_CallStaticShortMethodA,

  4802     jni_CallStaticIntMethod,

  4803     jni_CallStaticIntMethodV,

  4804     jni_CallStaticIntMethodA,

  4805     jni_CallStaticLongMethod,

  4806     jni_CallStaticLongMethodV,

  4807     jni_CallStaticLongMethodA,

  4808     jni_CallStaticFloatMethod,

  4809     jni_CallStaticFloatMethodV,

  4810     jni_CallStaticFloatMethodA,

  4811     jni_CallStaticDoubleMethod,

  4812     jni_CallStaticDoubleMethodV,

  4813     jni_CallStaticDoubleMethodA,

  4814     jni_CallStaticVoidMethod,

  4815     jni_CallStaticVoidMethodV,

  4816     jni_CallStaticVoidMethodA,

  4818     jni_GetStaticFieldID,

  4820     jni_GetStaticObjectField,

  4821     jni_GetStaticBooleanField,

  4822     jni_GetStaticByteField,

  4823     jni_GetStaticCharField,

  4824     jni_GetStaticShortField,

  4825     jni_GetStaticIntField,

  4826     jni_GetStaticLongField,

  4827     jni_GetStaticFloatField,

  4828     jni_GetStaticDoubleField,

  4830     jni_SetStaticObjectField,

  4831     jni_SetStaticBooleanField,

  4832     jni_SetStaticByteField,

  4833     jni_SetStaticCharField,

  4834     jni_SetStaticShortField,

  4835     jni_SetStaticIntField,

  4836     jni_SetStaticLongField,

  4837     jni_SetStaticFloatField,

  4838     jni_SetStaticDoubleField,

  4840     jni_NewString,

  4841     jni_GetStringLength,

  4842     jni_GetStringChars,

  4843     jni_ReleaseStringChars,

  4845     jni_NewStringUTF,

  4846     jni_GetStringUTFLength,

  4847     jni_GetStringUTFChars,

  4848     jni_ReleaseStringUTFChars,

  4850     jni_GetArrayLength,

  4852     jni_NewObjectArray,

  4853     jni_GetObjectArrayElement,

  4854     jni_SetObjectArrayElement,

  4856     jni_NewBooleanArray,

  4857     jni_NewByteArray,

  4858     jni_NewCharArray,

  4859     jni_NewShortArray,

  4860     jni_NewIntArray,

  4861     jni_NewLongArray,

  4862     jni_NewFloatArray,

  4863     jni_NewDoubleArray,

  4865     jni_GetBooleanArrayElements,

  4866     jni_GetByteArrayElements,

  4867     jni_GetCharArrayElements,

  4868     jni_GetShortArrayElements,

  4869     jni_GetIntArrayElements,

  4870     jni_GetLongArrayElements,

  4871     jni_GetFloatArrayElements,

  4872     jni_GetDoubleArrayElements,

  4874     jni_ReleaseBooleanArrayElements,

  4875     jni_ReleaseByteArrayElements,

  4876     jni_ReleaseCharArrayElements,

  4877     jni_ReleaseShortArrayElements,

  4878     jni_ReleaseIntArrayElements,

  4879     jni_ReleaseLongArrayElements,

  4880     jni_ReleaseFloatArrayElements,

  4881     jni_ReleaseDoubleArrayElements,

  4883     jni_GetBooleanArrayRegion,

  4884     jni_GetByteArrayRegion,

  4885     jni_GetCharArrayRegion,

  4886     jni_GetShortArrayRegion,

  4887     jni_GetIntArrayRegion,

  4888     jni_GetLongArrayRegion,

  4889     jni_GetFloatArrayRegion,

  4890     jni_GetDoubleArrayRegion,

  4892     jni_SetBooleanArrayRegion,

  4893     jni_SetByteArrayRegion,

  4894     jni_SetCharArrayRegion,

  4895     jni_SetShortArrayRegion,

  4896     jni_SetIntArrayRegion,

  4897     jni_SetLongArrayRegion,

  4898     jni_SetFloatArrayRegion,

  4899     jni_SetDoubleArrayRegion,

  4901     jni_RegisterNatives,

  4902     jni_UnregisterNatives,

  4904     jni_MonitorEnter,

  4905     jni_MonitorExit,

  4907     jni_GetJavaVM,

  4909     jni_GetStringRegion,

  4910     jni_GetStringUTFRegion,

  4912     jni_GetPrimitiveArrayCritical,

  4913     jni_ReleasePrimitiveArrayCritical,

  4915     jni_GetStringCritical,

  4916     jni_ReleaseStringCritical,

  4918     jni_NewWeakGlobalRef,

  4919     jni_DeleteWeakGlobalRef,

  4921     jni_ExceptionCheck,

  4923     jni_NewDirectByteBuffer,

  4924     jni_GetDirectBufferAddress,

  4925     jni_GetDirectBufferCapacity,

  4927     // New 1_6 features

  4929     jni_GetObjectRefType

  4930 };

  4933 // For jvmti use to modify jni function table.

  4934 // Java threads in native contiues to run until it is transitioned

  4935 // to VM at safepoint. Before the transition or before it is blocked

  4936 // for safepoint it may access jni function table. VM could crash if

  4937 // any java thread access the jni function table in the middle of memcpy.

  4938 // To avoid this each function pointers are copied automically.

  4939 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4940   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4941   intptr_t *a = (intptr_t *) jni_functions();

  4942   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4943   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4944     Atomic::store_ptr(*b++, a++);

  4945   }

  4946 }

  4948 void quicken_jni_functions() {

  4949   // Replace Get<Primitive>Field with fast versions

  4950   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4951       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4952 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4953       // windows x86 currently needs SEH wrapper and the gain of the fast

  4954       // versions currently isn't certain for server vm on uniprocessor.

  4955       && os::is_MP()

  4956 #endif

  4957   ) {

  4958     address func;

  4959     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4960     if (func != (address)-1) {

  4961       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4962     }

  4963     func = JNI_FastGetField::generate_fast_get_byte_field();

  4964     if (func != (address)-1) {

  4965       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4966     }

  4967     func = JNI_FastGetField::generate_fast_get_char_field();

  4968     if (func != (address)-1) {

  4969       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4970     }

  4971     func = JNI_FastGetField::generate_fast_get_short_field();

  4972     if (func != (address)-1) {

  4973       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4974     }

  4975     func = JNI_FastGetField::generate_fast_get_int_field();

  4976     if (func != (address)-1) {

  4977       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4978     }

  4979     func = JNI_FastGetField::generate_fast_get_long_field();

  4980     if (func != (address)-1) {

  4981       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4982     }

  4983     func = JNI_FastGetField::generate_fast_get_float_field();

  4984     if (func != (address)-1) {

  4985       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4986     }

  4987     func = JNI_FastGetField::generate_fast_get_double_field();

  4988     if (func != (address)-1) {

  4989       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4990     }

  4991   }

  4992 }

  4994 // Returns the function structure

  4995 struct JNINativeInterface_* jni_functions() {

  4996 #if INCLUDE_JNI_CHECK

  4997   if (CheckJNICalls) return jni_functions_check();

  4998 #endif // INCLUDE_JNI_CHECK

  4999   return &jni_NativeInterface;

  5000 }

  5002 // Returns the function structure

  5003 struct JNINativeInterface_* jni_functions_nocheck() {

  5004   return &jni_NativeInterface;

  5005 }

  5008 // Invocation API

  5011 // Forward declaration

  5012 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  5014 // Global invocation API vars

  5015 volatile jint vm_created = 0;

  5016 // Indicate whether it is safe to recreate VM

  5017 volatile jint safe_to_recreate_vm = 1;

  5018 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5021 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5022 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5024 #ifndef USDT2

  5025 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5026 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5027 #else /* USDT2 */

  5028 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5029                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5030 #endif /* USDT2 */

  5032 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5033 #ifndef USDT2

  5034   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5035 #else /* USDT2 */

  5036   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5037                                              args_);

  5038 #endif /* USDT2 */

  5039   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5040   jint ret = JNI_ERR;

  5041   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5043   if (Threads::is_supported_jni_version(args->version)) {

  5044     ret = JNI_OK;

  5045   }

  5046   // 1.1 style no longer supported in hotspot.

  5047   // According the JNI spec, we should update args->version on return.

  5048   // We also use the structure to communicate with launcher about default

  5049   // stack size.

  5050   if (args->version == JNI_VERSION_1_1) {

  5051     args->version = JNI_VERSION_1_2;

  5052     // javaStackSize is int in arguments structure

  5053     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5054     args->javaStackSize = (jint)(ThreadStackSize * K);

  5055   }

  5056   return ret;

  5057 }

  5059 #ifndef PRODUCT

  5061 #include "gc_implementation/shared/gcTimer.hpp"

  5062 #include "gc_interface/collectedHeap.hpp"

  5063 #if INCLUDE_ALL_GCS

  5064 #include "gc_implementation/g1/heapRegionRemSet.hpp"

  5065 #endif

  5066 #include "utilities/quickSort.hpp"

  5067 #include "utilities/ostream.hpp"

  5068 #if INCLUDE_VM_STRUCTS

  5069 #include "runtime/vmStructs.hpp"

  5070 #endif

  5072 #define run_unit_test(unit_test_function_call)              \

  5073   tty->print_cr("Running test: " #unit_test_function_call); \

  5074   unit_test_function_call

  5076 // Forward declaration

  5077 void TestReservedSpace_test();

  5078 void TestReserveMemorySpecial_test();

  5079 void TestVirtualSpace_test();

  5080 void TestMetaspaceAux_test();

  5081 void TestMetachunk_test();

  5082 void TestVirtualSpaceNode_test();

  5083 void TestNewSize_test();

  5084 #if INCLUDE_ALL_GCS

  5085 void TestOldFreeSpaceCalculation_test();

  5086 void TestG1BiasedArray_test();

  5087 void TestCodeCacheRemSet_test();

  5088 #endif

  5090 void execute_internal_vm_tests() {

  5091   if (ExecuteInternalVMTests) {

  5092     tty->print_cr("Running internal VM tests");

  5093     run_unit_test(TestReservedSpace_test());

  5094     run_unit_test(TestReserveMemorySpecial_test());

  5095     run_unit_test(TestVirtualSpace_test());

  5096     run_unit_test(TestMetaspaceAux_test());

  5097     run_unit_test(TestMetachunk_test());

  5098     run_unit_test(TestVirtualSpaceNode_test());

  5099     run_unit_test(GlobalDefinitions::test_globals());

  5100     run_unit_test(GCTimerAllTest::all());

  5101     run_unit_test(arrayOopDesc::test_max_array_length());

  5102     run_unit_test(CollectedHeap::test_is_in());

  5103     run_unit_test(QuickSort::test_quick_sort());

  5104     run_unit_test(AltHashing::test_alt_hash());

  5105     run_unit_test(test_loggc_filename());

  5106     run_unit_test(TestNewSize_test());

  5107 #if INCLUDE_VM_STRUCTS

  5108     run_unit_test(VMStructs::test());

  5109 #endif

  5110 #if INCLUDE_ALL_GCS

  5111     run_unit_test(TestOldFreeSpaceCalculation_test());

  5112     run_unit_test(TestG1BiasedArray_test());

  5113     run_unit_test(HeapRegionRemSet::test_prt());

  5114     run_unit_test(TestCodeCacheRemSet_test());

  5115 #endif

  5116     tty->print_cr("All internal VM tests passed");

  5117   }

  5118 }

  5120 #undef run_unit_test

  5122 #endif

  5124 #ifndef USDT2

  5125 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5126 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5127 #else /* USDT2 */

  5128 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5129                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5130 #endif /* USDT2 */

  5132 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5133 #ifndef USDT2

  5134   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5135 #else /* USDT2 */

  5136   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5137                                  (void **) vm, penv, args);

  5138 #endif /* USDT2 */

  5140   jint result = JNI_ERR;

  5141   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5143   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5144   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5145   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5146   // on all architectures.  So we check it works before relying on it.

  5147 #if defined(ZERO) && defined(ASSERT)

  5148   {

  5149     jint a = 0xcafebabe;

  5150     jint b = Atomic::xchg(0xdeadbeef, &a);

  5151     void *c = &a;

  5152     void *d = Atomic::xchg_ptr(&b, &c);

  5153     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5154     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5155   }

  5156 #endif // ZERO && ASSERT

  5158   // At the moment it's only possible to have one Java VM,

  5159   // since some of the runtime state is in global variables.

  5161   // We cannot use our mutex locks here, since they only work on

  5162   // Threads. We do an atomic compare and exchange to ensure only

  5163   // one thread can call this method at a time

  5165   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5166   // the add/dec implementations are dependent on whether we are running

  5167   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5168   // function used to determine this will always return false. Atomic::xchg

  5169   // does not have this problem.

  5170   if (Atomic::xchg(1, &vm_created) == 1) {

  5171     return JNI_EEXIST;   // already created, or create attempt in progress

  5172   }

  5173   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5174     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5175   }

  5177   assert(vm_created == 1, "vm_created is true during the creation");

  5179   /**

  5180    * Certain errors during initialization are recoverable and do not

  5181    * prevent this method from being called again at a later time

  5182    * (perhaps with different arguments).  However, at a certain

  5183    * point during initialization if an error occurs we cannot allow

  5184    * this function to be called again (or it will crash).  In those

  5185    * situations, the 'canTryAgain' flag is set to false, which atomically

  5186    * sets safe_to_recreate_vm to 1, such that any new call to

  5187    * JNI_CreateJavaVM will immediately fail using the above logic.

  5188    */

  5189   bool can_try_again = true;

  5191   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5192   if (result == JNI_OK) {

  5193     JavaThread *thread = JavaThread::current();

  5194     /* thread is thread_in_vm here */

  5195     *vm = (JavaVM *)(&main_vm);

  5196     *(JNIEnv**)penv = thread->jni_environment();

  5198     // Tracks the time application was running before GC

  5199     RuntimeService::record_application_start();

  5201     // Notify JVMTI

  5202     if (JvmtiExport::should_post_thread_life()) {

  5203        JvmtiExport::post_thread_start(thread);

  5204     }

  5206     EventThreadStart event;

  5207     if (event.should_commit()) {

  5208       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5209       event.commit();

  5210     }

  5212 #ifndef PRODUCT

  5213   #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED

  5214     #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()

  5215   #endif

  5217     // Check if we should compile all classes on bootclasspath

  5218     if (CompileTheWorld) ClassLoader::compile_the_world();

  5219     if (ReplayCompiles) ciReplay::replay(thread);

  5221     // Some platforms (like Win*) need a wrapper around these test

  5222     // functions in order to properly handle error conditions.

  5223     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);

  5224     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);

  5225 #endif

  5227     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5228     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5229   } else {

  5230     if (can_try_again) {

  5231       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5232       safe_to_recreate_vm = 1;

  5233     }

  5235     // Creation failed. We must reset vm_created

  5236     *vm = 0;

  5237     *(JNIEnv**)penv = 0;

  5238     // reset vm_created last to avoid race condition. Use OrderAccess to

  5239     // control both compiler and architectural-based reordering.

  5240     OrderAccess::release_store(&vm_created, 0);

  5241   }

  5243   return result;

  5244 }

  5246 #ifndef USDT2

  5247 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5248   JavaVM**, jsize, jsize*);

  5249 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5250 #endif /* !USDT2 */

  5252 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5253   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5254   // JNIWrapper("GetCreatedJavaVMs");

  5255 #ifndef USDT2

  5256   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5257     vm_buf, bufLen, numVMs);

  5258 #else /* USDT2 */

  5259   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5260                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5261 #endif /* USDT2 */

  5262   if (vm_created) {

  5263     if (numVMs != NULL) *numVMs = 1;

  5264     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5265   } else {

  5266     if (numVMs != NULL) *numVMs = 0;

  5267   }

  5268 #ifndef USDT2

  5269   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5270 #else /* USDT2 */

  5271   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5272                                     JNI_OK);

  5273 #endif /* USDT2 */

  5274   return JNI_OK;

  5275 }

  5277 extern "C" {

  5279 #ifndef USDT2

  5280 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5281 #else /* USDT2 */

  5282 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5283                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5284 #endif /* USDT2 */

  5286 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5287 #ifndef USDT2

  5288   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5289 #else /* USDT2 */

  5290   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5291                                   vm);

  5292 #endif /* USDT2 */

  5293   jint res = JNI_ERR;

  5294   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5296   if (!vm_created) {

  5297     res = JNI_ERR;

  5298     return res;

  5299   }

  5301   JNIWrapper("DestroyJavaVM");

  5302   JNIEnv *env;

  5303   JavaVMAttachArgs destroyargs;

  5304   destroyargs.version = CurrentVersion;

  5305   destroyargs.name = (char *)"DestroyJavaVM";

  5306   destroyargs.group = NULL;

  5307   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5308   if (res != JNI_OK) {

  5309     return res;

  5310   }

  5312   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5313   JavaThread* thread = JavaThread::current();

  5314   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5315   if (Threads::destroy_vm()) {

  5316     // Should not change thread state, VM is gone

  5317     vm_created = false;

  5318     res = JNI_OK;

  5319     return res;

  5320   } else {

  5321     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5322     res = JNI_ERR;

  5323     return res;

  5324   }

  5325 }

  5328 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5329   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5331   // Check below commented out from JDK1.2fcs as well

  5332   /*

  5333   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5334     return JNI_EVERSION;

  5335   }

  5336   */

  5338   Thread* t = ThreadLocalStorage::get_thread_slow();

  5339   if (t != NULL) {

  5340     // If the thread has been attached this operation is a no-op

  5341     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5342     return JNI_OK;

  5343   }

  5345   // Create a thread and mark it as attaching so it will be skipped by the

  5346   // ThreadsListEnumerator - see CR 6404306

  5347   JavaThread* thread = new JavaThread(true);

  5349   // Set correct safepoint info. The thread is going to call into Java when

  5350   // initializing the Java level thread object. Hence, the correct state must

  5351   // be set in order for the Safepoint code to deal with it correctly.

  5352   thread->set_thread_state(_thread_in_vm);

  5353   // Must do this before initialize_thread_local_storage

  5354   thread->record_stack_base_and_size();

  5356   thread->initialize_thread_local_storage();

  5358   if (!os::create_attached_thread(thread)) {

  5359     delete thread;

  5360     return JNI_ERR;

  5361   }

  5362   // Enable stack overflow checks

  5363   thread->create_stack_guard_pages();

  5365   thread->initialize_tlab();

  5367   thread->cache_global_variables();

  5369   // Crucial that we do not have a safepoint check for this thread, since it has

  5370   // not been added to the Thread list yet.

  5371   { Threads_lock->lock_without_safepoint_check();

  5372     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5373     // avoid this thread trying to do a GC before it is added to the thread-list

  5374     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5375     Threads::add(thread, daemon);

  5376     Threads_lock->unlock();

  5377   }

  5378   // Create thread group and name info from attach arguments

  5379   oop group = NULL;

  5380   char* thread_name = NULL;

  5381   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5382     group = JNIHandles::resolve(args->group);

  5383     thread_name = args->name; // may be NULL

  5384   }

  5385   if (group == NULL) group = Universe::main_thread_group();

  5387   // Create Java level thread object and attach it to this thread

  5388   bool attach_failed = false;

  5389   {

  5390     EXCEPTION_MARK;

  5391     HandleMark hm(THREAD);

  5392     Handle thread_group(THREAD, group);

  5393     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5394     if (HAS_PENDING_EXCEPTION) {

  5395       CLEAR_PENDING_EXCEPTION;

  5396       // cleanup outside the handle mark.

  5397       attach_failed = true;

  5398     }

  5399   }

  5401   if (attach_failed) {

  5402     // Added missing cleanup

  5403     thread->cleanup_failed_attach_current_thread();

  5404     return JNI_ERR;

  5405   }

  5407   // mark the thread as no longer attaching

  5408   // this uses a fence to push the change through so we don't have

  5409   // to regrab the threads_lock

  5410   thread->set_done_attaching_via_jni();

  5412   // Set java thread status.

  5413   java_lang_Thread::set_thread_status(thread->threadObj(),

  5414               java_lang_Thread::RUNNABLE);

  5416   // Notify the debugger

  5417   if (JvmtiExport::should_post_thread_life()) {

  5418     JvmtiExport::post_thread_start(thread);

  5419   }

  5421   EventThreadStart event;

  5422   if (event.should_commit()) {

  5423     event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5424     event.commit();

  5425   }

  5427   *(JNIEnv**)penv = thread->jni_environment();

  5429   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5430   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5431   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5432   // needed.

  5434   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5436   // Perform any platform dependent FPU setup

  5437   os::setup_fpu();

  5439   return JNI_OK;

  5440 }

  5443 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5444 #ifndef USDT2

  5445   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5446 #else /* USDT2 */

  5447   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5448                                         vm, penv, _args);

  5449 #endif /* USDT2 */

  5450   if (!vm_created) {

  5451 #ifndef USDT2

  5452     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5453 #else /* USDT2 */

  5454   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5455                                          (uint32_t) JNI_ERR);

  5456 #endif /* USDT2 */

  5457     return JNI_ERR;

  5458   }

  5460   JNIWrapper("AttachCurrentThread");

  5461   jint ret = attach_current_thread(vm, penv, _args, false);

  5462 #ifndef USDT2

  5463   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5464 #else /* USDT2 */

  5465   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5466                                          ret);

  5467 #endif /* USDT2 */

  5468   return ret;

  5469 }

  5472 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5473 #ifndef USDT2

  5474   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5475 #else /* USDT2 */

  5476   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5477                                         vm);

  5478 #endif /* USDT2 */

  5479   VM_Exit::block_if_vm_exited();

  5481   JNIWrapper("DetachCurrentThread");

  5483   // If the thread has been deattacted the operations is a no-op

  5484   if (ThreadLocalStorage::thread() == NULL) {

  5485 #ifndef USDT2

  5486     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5487 #else /* USDT2 */

  5488   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5489                                          JNI_OK);

  5490 #endif /* USDT2 */

  5491     return JNI_OK;

  5492   }

  5494   JavaThread* thread = JavaThread::current();

  5495   if (thread->has_last_Java_frame()) {

  5496 #ifndef USDT2

  5497     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5498 #else /* USDT2 */

  5499   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5500                                          (uint32_t) JNI_ERR);

  5501 #endif /* USDT2 */

  5502     // Can't detach a thread that's running java, that can't work.

  5503     return JNI_ERR;

  5504   }

  5506   // Safepoint support. Have to do call-back to safepoint code, if in the

  5507   // middel of a safepoint operation

  5508   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5510   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5511   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5512   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5513   // of the guards is visible in jni_AttachCurrentThread above,

  5514   // the removal of the guards is buried below in JavaThread::exit()

  5515   // here. The abstraction should be more symmetrically either exposed

  5516   // or hidden (e.g. it could probably be hidden in the same

  5517   // (platform-dependent) methods where we do alternate stack

  5518   // maintenance work?)

  5519   thread->exit(false, JavaThread::jni_detach);

  5520   delete thread;

  5522 #ifndef USDT2

  5523   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5524 #else /* USDT2 */

  5525   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5526                                          JNI_OK);

  5527 #endif /* USDT2 */

  5528   return JNI_OK;

  5529 }

  5531 #ifndef USDT2

  5532 DT_RETURN_MARK_DECL(GetEnv, jint);

  5533 #else /* USDT2 */

  5534 DT_RETURN_MARK_DECL(GetEnv, jint

  5535                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5536 #endif /* USDT2 */

  5538 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5539 #ifndef USDT2

  5540   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5541 #else /* USDT2 */

  5542   HOTSPOT_JNI_GETENV_ENTRY(

  5543                            vm, penv, version);

  5544 #endif /* USDT2 */

  5545   jint ret = JNI_ERR;

  5546   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5548   if (!vm_created) {

  5549     *penv = NULL;

  5550     ret = JNI_EDETACHED;

  5551     return ret;

  5552   }

  5554   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5555     return ret;

  5556   }

  5558 #ifndef JVMPI_VERSION_1

  5559 // need these in order to be polite about older agents

  5560 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5561 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5562 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5563 #endif // !JVMPI_VERSION_1

  5565   Thread* thread = ThreadLocalStorage::thread();

  5566   if (thread != NULL && thread->is_Java_thread()) {

  5567     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5568       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5569       ret = JNI_OK;

  5570       return ret;

  5572     } else if (version == JVMPI_VERSION_1 ||

  5573                version == JVMPI_VERSION_1_1 ||

  5574                version == JVMPI_VERSION_1_2) {

  5575       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5576       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5577       ret = JNI_EVERSION;

  5578       return ret;

  5579     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5580       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5581       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5582       ret = JNI_EVERSION;

  5583       return ret;

  5584     } else {

  5585       *penv = NULL;

  5586       ret = JNI_EVERSION;

  5587       return ret;

  5588     }

  5589   } else {

  5590     *penv = NULL;

  5591     ret = JNI_EDETACHED;

  5592     return ret;

  5593   }

  5594 }

  5597 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5598 #ifndef USDT2

  5599   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5600 #else /* USDT2 */

  5601   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5602                                                 vm, penv, _args);

  5603 #endif /* USDT2 */

  5604   if (!vm_created) {

  5605 #ifndef USDT2

  5606     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5607 #else /* USDT2 */

  5608   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5609                                                  (uint32_t) JNI_ERR);

  5610 #endif /* USDT2 */

  5611     return JNI_ERR;

  5612   }

  5614   JNIWrapper("AttachCurrentThreadAsDaemon");

  5615   jint ret = attach_current_thread(vm, penv, _args, true);

  5616 #ifndef USDT2

  5617   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5618 #else /* USDT2 */

  5619   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5620                                                  ret);

  5621 #endif /* USDT2 */

  5622   return ret;

  5623 }

  5626 } // End extern "C"

  5628 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5629     NULL,

  5630     NULL,

  5631     NULL,

  5633     jni_DestroyJavaVM,

  5634     jni_AttachCurrentThread,

  5635     jni_DetachCurrentThread,

  5636     jni_GetEnv,

  5637     jni_AttachCurrentThreadAsDaemon

  5638 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@f90c822e73f8

src/share/vm/prims/jni.cpp