jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@833b0f92429a

8046598: Scalable Native memory tracking development
Summary: Enhance scalability of native memory tracking
Reviewed-by: coleenp, ctornqvi, gtriantafill

     1 /*

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

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

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

     5  *

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

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

     8  * published by the Free Software Foundation.

     9  *

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

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

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

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

    14  * accompanied this code).

    15  *

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

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

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

    19  *

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

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

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "ci/ciReplay.hpp"

    28 #include "classfile/altHashing.hpp"

    29 #include "classfile/classLoader.hpp"

    30 #include "classfile/javaClasses.hpp"

    31 #include "classfile/symbolTable.hpp"

    32 #include "classfile/systemDictionary.hpp"

    33 #include "classfile/vmSymbols.hpp"

    34 #include "interpreter/linkResolver.hpp"

    35 #include "utilities/macros.hpp"

    36 #if INCLUDE_ALL_GCS

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

    38 #endif // INCLUDE_ALL_GCS

    39 #include "memory/allocation.hpp"

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

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

    42 #include "memory/oopFactory.hpp"

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

    44 #include "oops/instanceKlass.hpp"

    45 #include "oops/instanceOop.hpp"

    46 #include "oops/markOop.hpp"

    47 #include "oops/method.hpp"

    48 #include "oops/objArrayKlass.hpp"

    49 #include "oops/objArrayOop.hpp"

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

    51 #include "oops/symbol.hpp"

    52 #include "oops/typeArrayKlass.hpp"

    53 #include "oops/typeArrayOop.hpp"

    54 #include "prims/jni.h"

    55 #include "prims/jniCheck.hpp"

    56 #include "prims/jniExport.hpp"

    57 #include "prims/jniFastGetField.hpp"

    58 #include "prims/jvm.h"

    59 #include "prims/jvm_misc.hpp"

    60 #include "prims/jvmtiExport.hpp"

    61 #include "prims/jvmtiThreadState.hpp"

    62 #include "runtime/compilationPolicy.hpp"

    63 #include "runtime/fieldDescriptor.hpp"

    64 #include "runtime/fprofiler.hpp"

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

    66 #include "runtime/interfaceSupport.hpp"

    67 #include "runtime/java.hpp"

    68 #include "runtime/javaCalls.hpp"

    69 #include "runtime/jfieldIDWorkaround.hpp"

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

    71 #include "runtime/reflection.hpp"

    72 #include "runtime/sharedRuntime.hpp"

    73 #include "runtime/signature.hpp"

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

    75 #include "runtime/vm_operations.hpp"

    76 #include "services/memTracker.hpp"

    77 #include "services/runtimeService.hpp"

    78 #include "trace/tracing.hpp"

    79 #include "utilities/defaultStream.hpp"

    80 #include "utilities/dtrace.hpp"

    81 #include "utilities/events.hpp"

    82 #include "utilities/histogram.hpp"

    83 #ifdef TARGET_OS_FAMILY_linux

    84 # include "os_linux.inline.hpp"

    85 #endif

    86 #ifdef TARGET_OS_FAMILY_solaris

    87 # include "os_solaris.inline.hpp"

    88 #endif

    89 #ifdef TARGET_OS_FAMILY_windows

    90 # include "os_windows.inline.hpp"

    91 #endif

    92 #ifdef TARGET_OS_FAMILY_bsd

    93 # include "os_bsd.inline.hpp"

    94 #endif

    96 static jint CurrentVersion = JNI_VERSION_1_8;

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

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

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

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

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

   104 //

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

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

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

   108 // a reference to it).

   109 //

   110 // Example:

   111 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   113 //   int return_value = 0;

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

   115 //   foo(CHECK_0)

   116 //   return_value = 5;

   117 //   return return_value;

   118 // JNI_END

   119 #ifndef USDT2

   120 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   122   DTRACE_ONLY(                                                             \

   123     class DTraceReturnProbeMark_##name {                                   \

   124      public:                                                               \

   125       const type& _ret_ref;                                                \

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

   127       ~DTraceReturnProbeMark_##name() {                                    \

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

   129       }                                                                    \

   130     }                                                                      \

   131   )

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

   133 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   135   DTRACE_ONLY(                                                             \

   136     class DTraceReturnProbeMark_##name {                                   \

   137      public:                                                               \

   138       ~DTraceReturnProbeMark_##name() {                                    \

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

   140       }                                                                    \

   141     }                                                                      \

   142   )

   144 #else /* USDT2 */

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

   147   DTRACE_ONLY(                                                             \

   148     class DTraceReturnProbeMark_##name {                                   \

   149      public:                                                               \

   150       const type& _ret_ref;                                                \

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

   152       ~DTraceReturnProbeMark_##name() {                                    \

   153         probe;                                                             \

   154       }                                                                    \

   155     }                                                                      \

   156   )

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

   158 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   159   DTRACE_ONLY(                                                             \

   160     class DTraceReturnProbeMark_##name {                                   \

   161      public:                                                               \

   162       ~DTraceReturnProbeMark_##name() {                                    \

   163         probe;                                                             \

   164       }                                                                    \

   165     }                                                                      \

   166   )

   167 #endif /* USDT2 */

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

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

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

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

   173 #define DT_VOID_RETURN_MARK(name) \

   174   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   179 // different behavior for Float/Double

   180 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   181 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   182 #define FP_SELECT_Char(intcode, fpcode)    intcode

   183 #define FP_SELECT_Short(intcode, fpcode)   intcode

   184 #define FP_SELECT_Object(intcode, fpcode)  intcode

   185 #define FP_SELECT_Int(intcode, fpcode)     intcode

   186 #define FP_SELECT_Long(intcode, fpcode)    intcode

   187 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   188 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   190   FP_SELECT_##TypeName(intcode, fpcode)

   192 #define COMMA ,

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

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

   196 #ifndef USDT2

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

   198   FP_SELECT(TypeName, \

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

   200 #else /* USDT2 */

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

   202   FP_SELECT(TypeName, \

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

   204 #endif /* USDT2 */

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

   206   FP_SELECT(TypeName, \

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

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

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

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

   214     uintptr_t as_uint = (uintptr_t) id;

   215     intptr_t offset = raw_instance_offset(id);

   216     if (is_checked_jfieldID(id)) {

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

   218         return false;

   219       }

   220     }

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

   222   } else {

   223     JNIid* result = (JNIid*) id;

   224 #ifdef ASSERT

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

   226 #else

   227     return result != NULL;

   228 #endif

   229   }

   230 }

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

   234   if (offset <= small_offset_mask) {

   235     Klass* field_klass = k;

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

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

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

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

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

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

   242       super_klass = field_klass->super();

   243     }

   244     debug_only(No_Safepoint_Verifier nosafepoint;)

   245     uintptr_t klass_hash = field_klass->identity_hash();

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

   247   } else {

   248 #if 0

   249     #ifndef PRODUCT

   250     {

   251       ResourceMark rm;

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

   253     }

   254     #endif

   255 #endif

   256     return 0;

   257   }

   258 }

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

   261   uintptr_t as_uint = (uintptr_t) id;

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

   263   do {

   264     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   267       return true;

   268     k = k->super();

   269   } while (k != NULL);

   270   return false;

   271 }

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

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

   275   uintptr_t as_uint = (uintptr_t) id;

   276   intptr_t offset = raw_instance_offset(id);

   277   if (VerifyJNIFields) {

   278     if (is_checked_jfieldID(id)) {

   279       guarantee(klass_hash_ok(k, id),

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

   281     } else {

   282 #if 0

   283       #ifndef PRODUCT

   284       if (Verbose) {

   285   ResourceMark rm;

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

   287       }

   288       #endif

   289 #endif

   290     }

   291   }

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

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

   294 }

   296 // Wrapper to trace JNI functions

   298 #ifdef ASSERT

   299   Histogram* JNIHistogram;

   300   static volatile jint JNIHistogram_lock = 0;

   302   class JNITraceWrapper : public StackObj {

   303    public:

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

   305       if (TraceJNICalls) {

   306         va_list ap;

   307         va_start(ap, format);

   308         tty->print("JNI ");

   309         tty->vprint_cr(format, ap);

   310         va_end(ap);

   311       }

   312     }

   313   };

   315   class JNIHistogramElement : public HistogramElement {

   316     public:

   317      JNIHistogramElement(const char* name);

   318   };

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

   321     _name = elementName;

   322     uintx count = 0;

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

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

   326         count +=1;

   327         if ( (WarnOnStalledSpinLock > 0)

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

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

   330         }

   331       }

   332      }

   335     if(JNIHistogram == NULL)

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

   338     JNIHistogram->add_element(this);

   339     Atomic::dec(&JNIHistogram_lock);

   340   }

   342   #define JNICountWrapper(arg)                                     \

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

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

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

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

   347 #else

   348   #define JNIWrapper(arg)

   349 #endif

   352 // Implementation of JNI entries

   354 #ifndef USDT2

   355 DT_RETURN_MARK_DECL(DefineClass, jclass);

   356 #else /* USDT2 */

   357 DT_RETURN_MARK_DECL(DefineClass, jclass

   358                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   359 #endif /* USDT2 */

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

   362                                   const jbyte *buf, jsize bufLen))

   363   JNIWrapper("DefineClass");

   365 #ifndef USDT2

   366   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   368 #else /* USDT2 */

   369   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   371 #endif /* USDT2 */

   372   jclass cls = NULL;

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

   375   TempNewSymbol class_name = NULL;

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

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

   378   if (name != NULL) {

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

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

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

   382       // into the constant pool.

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

   384     }

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

   386   }

   387   ResourceMark rm(THREAD);

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

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

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

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

   393     // If not, increment the corresponding counter

   394     if (ObjectSynchronizer::

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

   396         ObjectSynchronizer::owner_self) {

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

   398     }

   399   }

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

   401                                                      Handle(), &st, true,

   402                                                      CHECK_NULL);

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

   405     trace_class_resolution(k);

   406   }

   408   cls = (jclass)JNIHandles::make_local(

   409     env, k->java_mirror());

   410   return cls;

   411 JNI_END

   415 static bool first_time_FindClass = true;

   417 #ifndef USDT2

   418 DT_RETURN_MARK_DECL(FindClass, jclass);

   419 #else /* USDT2 */

   420 DT_RETURN_MARK_DECL(FindClass, jclass

   421                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   422 #endif /* USDT2 */

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

   425   JNIWrapper("FindClass");

   426 #ifndef USDT2

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

   428 #else /* USDT2 */

   429   HOTSPOT_JNI_FINDCLASS_ENTRY(

   430                               env, (char *)name);

   431 #endif /* USDT2 */

   433   jclass result = NULL;

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

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

   437   bool first_time = first_time_FindClass;

   438   first_time_FindClass = false;

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

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

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

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

   444   }

   446   //%note jni_3

   447   Handle loader;

   448   Handle protection_domain;

   449   // Find calling class

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

   451   if (k.not_null()) {

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

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

   454     // in the correct class context.

   455     if (loader.is_null() &&

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

   457       JavaValue result(T_OBJECT);

   458       JavaCalls::call_static(&result, k,

   459                                       vmSymbols::getFromClass_name(),

   460                                       vmSymbols::void_class_signature(),

   461                                       thread);

   462       if (HAS_PENDING_EXCEPTION) {

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

   464         CLEAR_PENDING_EXCEPTION;

   465         THROW_HANDLE_0(ex);

   466       }

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

   468       loader = Handle(THREAD,

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

   470       protection_domain = Handle(THREAD,

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

   472     }

   473   } else {

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

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

   476   }

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

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

   480                                         protection_domain, true, thread);

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

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

   484   }

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

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

   488   // Controlled by flag DelayCompilationDuringStartup.

   489   if (first_time && !CompileTheWorld)

   490     CompilationPolicy::completed_vm_startup();

   492   return result;

   493 JNI_END

   495 #ifndef USDT2

   496 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   497 #else /* USDT2 */

   498 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   499                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   500 #endif /* USDT2 */

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

   503   JNIWrapper("FromReflectedMethod");

   504 #ifndef USDT2

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

   506 #else /* USDT2 */

   507   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   508                                         env, method);

   509 #endif /* USDT2 */

   510   jmethodID ret = NULL;

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

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

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

   515   oop mirror     = NULL;

   516   int slot       = 0;

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

   519     mirror = java_lang_reflect_Constructor::clazz(reflected);

   520     slot   = java_lang_reflect_Constructor::slot(reflected);

   521   } else {

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

   523     mirror = java_lang_reflect_Method::clazz(reflected);

   524     slot   = java_lang_reflect_Method::slot(reflected);

   525   }

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

   528   KlassHandle k1(THREAD, k);

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

   530   k1()->initialize(CHECK_NULL);

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

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

   533   return ret;

   534 JNI_END

   536 #ifndef USDT2

   537 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   538 #else /* USDT2 */

   539 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   540                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   541 #endif /* USDT2 */

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

   544   JNIWrapper("FromReflectedField");

   545 #ifndef USDT2

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

   547 #else /* USDT2 */

   548   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   549                                        env, field);

   550 #endif /* USDT2 */

   551   jfieldID ret = NULL;

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

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

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

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

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

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

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

   561   KlassHandle k1(THREAD, k);

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

   563   k1()->initialize(CHECK_NULL);

   565   // First check if this is a static field

   566   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   570     debug_only(id->set_is_static_field_id();)

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

   572     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   573     return ret;

   574   }

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

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

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

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

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

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

   582   return ret;

   583 JNI_END

   585 #ifndef USDT2

   586 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   587 #else /* USDT2 */

   588 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   589                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   590 #endif /* USDT2 */

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

   593   JNIWrapper("ToReflectedMethod");

   594 #ifndef USDT2

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

   596 #else /* USDT2 */

   597   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   599 #endif /* USDT2 */

   600   jobject ret = NULL;

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

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

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

   605   oop reflection_method;

   606   if (m->is_initializer()) {

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

   608   } else {

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

   610   }

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

   612   return ret;

   613 JNI_END

   615 #ifndef USDT2

   616 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   617 #else /* USDT2 */

   618 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   619                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   620 #endif /* USDT2 */

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

   623   JNIWrapper("GetSuperclass");

   624 #ifndef USDT2

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

   626 #else /* USDT2 */

   627   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   628                                   env, sub);

   629 #endif /* USDT2 */

   630   jclass obj = NULL;

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

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

   634   // primitive classes return NULL

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

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

   638   // arrays return Object

   639   // interfaces return NULL

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

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

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

   644   // return mirror for superclass

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

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

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

   648                                  ? SystemDictionary::Object_klass()

   649                                  : k->super() ) );

   650   assert(super == super2,

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

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

   653   return obj;

   654 JNI_END

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

   657   JNIWrapper("IsSubclassOf");

   658 #ifndef USDT2

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

   660 #else /* USDT2 */

   661   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   662                                      env, sub, super);

   663 #endif /* USDT2 */

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

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

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

   667       java_lang_Class::is_primitive(super_mirror)) {

   668     jboolean ret = (sub_mirror == super_mirror);

   669 #ifndef USDT2

   670     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   671 #else /* USDT2 */

   672     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   673                                         ret);

   674 #endif /* USDT2 */

   675     return ret;

   676   }

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

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

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

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

   681                    JNI_TRUE : JNI_FALSE;

   682 #ifndef USDT2

   683   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   684 #else /* USDT2 */

   685   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   686                                       ret);

   687 #endif /* USDT2 */

   688   return ret;

   689 JNI_END

   691 #ifndef USDT2

   692 DT_RETURN_MARK_DECL(Throw, jint);

   693 #else /* USDT2 */

   694 DT_RETURN_MARK_DECL(Throw, jint

   695                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   696 #endif /* USDT2 */

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

   699   JNIWrapper("Throw");

   700 #ifndef USDT2

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

   702 #else /* USDT2 */

   703   HOTSPOT_JNI_THROW_ENTRY(

   704  env, obj);

   705 #endif /* USDT2 */

   706   jint ret = JNI_OK;

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

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

   710   ShouldNotReachHere();

   711 JNI_END

   713 #ifndef USDT2

   714 DT_RETURN_MARK_DECL(ThrowNew, jint);

   715 #else /* USDT2 */

   716 DT_RETURN_MARK_DECL(ThrowNew, jint

   717                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   718 #endif /* USDT2 */

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

   721   JNIWrapper("ThrowNew");

   722 #ifndef USDT2

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

   724 #else /* USDT2 */

   725   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   727 #endif /* USDT2 */

   728   jint ret = JNI_OK;

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

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

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

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

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

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

   736   ShouldNotReachHere();

   737 JNI_END

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

   741 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   747 // state transition.

   749 static void jni_check_async_exceptions(JavaThread *thread) {

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

   751   thread->check_and_handle_async_exceptions();

   752 }

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

   755   JNIWrapper("ExceptionOccurred");

   756 #ifndef USDT2

   757   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   758 #else /* USDT2 */

   759   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   760                                       env);

   761 #endif /* USDT2 */

   762   jni_check_async_exceptions(thread);

   763   oop exception = thread->pending_exception();

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

   765 #ifndef USDT2

   766   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   767 #else /* USDT2 */

   768   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   769                                        ret);

   770 #endif /* USDT2 */

   771   return ret;

   772 JNI_END

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

   776   JNIWrapper("ExceptionDescribe");

   777 #ifndef USDT2

   778   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   779 #else /* USDT2 */

   780   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   781                                       env);

   782 #endif /* USDT2 */

   783   if (thread->has_pending_exception()) {

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

   785     thread->clear_pending_exception();

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

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

   788     } else {

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

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

   791         ResourceMark rm(THREAD);

   792         jio_fprintf(defaultStream::error_stream(),

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

   794       }

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

   796         JavaValue result(T_VOID);

   797         JavaCalls::call_virtual(&result,

   798                                 ex,

   799                                 KlassHandle(THREAD,

   800                                   SystemDictionary::Throwable_klass()),

   801                                 vmSymbols::printStackTrace_name(),

   802                                 vmSymbols::void_method_signature(),

   803                                 THREAD);

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

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

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

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

   808         // is expected.

   809         CLEAR_PENDING_EXCEPTION;

   810       } else {

   811         ResourceMark rm(THREAD);

   812         jio_fprintf(defaultStream::error_stream(),

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

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

   815       }

   816     }

   817   }

   818 #ifndef USDT2

   819   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   820 #else /* USDT2 */

   821   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   822                                        );

   823 #endif /* USDT2 */

   824 JNI_END

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

   828   JNIWrapper("ExceptionClear");

   829 #ifndef USDT2

   830   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   831 #else /* USDT2 */

   832   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   833                                    env);

   834 #endif /* USDT2 */

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

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

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

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

   840     state->set_exception_caught();

   841   }

   842   thread->clear_pending_exception();

   843 #ifndef USDT2

   844   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   845 #else /* USDT2 */

   846   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   847                                     );

   848 #endif /* USDT2 */

   849 JNI_END

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

   853   JNIWrapper("FatalError");

   854 #ifndef USDT2

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

   856 #else /* USDT2 */

   857   HOTSPOT_JNI_FATALERROR_ENTRY(

   858                                env, (char *) msg);

   859 #endif /* USDT2 */

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

   861   thread->print_stack();

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

   863 JNI_END

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

   867   JNIWrapper("PushLocalFrame");

   868 #ifndef USDT2

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

   870 #else /* USDT2 */

   871   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   872                                    env, capacity);

   873 #endif /* USDT2 */

   874   //%note jni_11

   875   if (capacity < 0 ||

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

   877 #ifndef USDT2

   878     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   879 #else /* USDT2 */

   880     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   881                                       (uint32_t)JNI_ERR);

   882 #endif /* USDT2 */

   883     return JNI_ERR;

   884   }

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

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

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

   888   new_handles->set_pop_frame_link(old_handles);

   889   thread->set_active_handles(new_handles);

   890   jint ret = JNI_OK;

   891 #ifndef USDT2

   892   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   893 #else /* USDT2 */

   894   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   895                                     ret);

   896 #endif /* USDT2 */

   897   return ret;

   898 JNI_END

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

   902   JNIWrapper("PopLocalFrame");

   903 #ifndef USDT2

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

   905 #else /* USDT2 */

   906   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   907                                   env, result);

   908 #endif /* USDT2 */

   909   //%note jni_11

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

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

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

   913   if (new_handles != NULL) {

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

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

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

   917     // the release_block call will release the blocks.

   918     thread->set_active_handles(new_handles);

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

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

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

   922   }

   923 #ifndef USDT2

   924   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   925 #else /* USDT2 */

   926   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   927                                    result);

   928 #endif /* USDT2 */

   929   return result;

   930 JNI_END

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

   934   JNIWrapper("NewGlobalRef");

   935 #ifndef USDT2

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

   937 #else /* USDT2 */

   938   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   939                                  env, ref);

   940 #endif /* USDT2 */

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

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

   943 #ifndef USDT2

   944   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   945 #else /* USDT2 */

   946   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   947                                   ret);

   948 #endif /* USDT2 */

   949   return ret;

   950 JNI_END

   952 // Must be JNI_ENTRY (with HandleMark)

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

   954   JNIWrapper("DeleteGlobalRef");

   955 #ifndef USDT2

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

   957 #else /* USDT2 */

   958   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   959                                     env, ref);

   960 #endif /* USDT2 */

   961   JNIHandles::destroy_global(ref);

   962 #ifndef USDT2

   963   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   964 #else /* USDT2 */

   965   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   966                                      );

   967 #endif /* USDT2 */

   968 JNI_END

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

   971   JNIWrapper("DeleteLocalRef");

   972 #ifndef USDT2

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

   974 #else /* USDT2 */

   975   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   976                                    env, obj);

   977 #endif /* USDT2 */

   978   JNIHandles::destroy_local(obj);

   979 #ifndef USDT2

   980   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   981 #else /* USDT2 */

   982   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   983                                     );

   984 #endif /* USDT2 */

   985 JNI_END

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

   988   JNIWrapper("IsSameObject");

   989 #ifndef USDT2

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

   991 #else /* USDT2 */

   992   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

   993                                  env, r1, r2);

   994 #endif /* USDT2 */

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

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

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

   998 #ifndef USDT2

   999   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1000 #else /* USDT2 */

  1001   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1002                                   ret);

  1003 #endif /* USDT2 */

  1004   return ret;

  1005 JNI_END

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

  1009   JNIWrapper("NewLocalRef");

  1010 #ifndef USDT2

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

  1012 #else /* USDT2 */

  1013   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1014                                 env, ref);

  1015 #endif /* USDT2 */

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

  1017 #ifndef USDT2

  1018   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1019 #else /* USDT2 */

  1020   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1021                                  ret);

  1022 #endif /* USDT2 */

  1023   return ret;

  1024 JNI_END

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

  1027   JNIWrapper("EnsureLocalCapacity");

  1028 #ifndef USDT2

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

  1030 #else /* USDT2 */

  1031   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1032                                         env, capacity);

  1033 #endif /* USDT2 */

  1034   jint ret;

  1035   if (capacity >= 0 &&

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

  1037     ret = JNI_OK;

  1038   } else {

  1039     ret = JNI_ERR;

  1040   }

  1041 #ifndef USDT2

  1042   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1043 #else /* USDT2 */

  1044   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1045                                          ret);

  1046 #endif /* USDT2 */

  1047   return ret;

  1048 JNI_END

  1050 // Return the Handle Type

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

  1052   JNIWrapper("GetObjectRefType");

  1053 #ifndef USDT2

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

  1055 #else /* USDT2 */

  1056   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1057                                      env, obj);

  1058 #endif /* USDT2 */

  1059   jobjectRefType ret;

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

  1061       JNIHandles::is_frame_handle(thread, obj))

  1062     ret = JNILocalRefType;

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

  1064     ret = JNIGlobalRefType;

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

  1066     ret = JNIWeakGlobalRefType;

  1067   else

  1068     ret = JNIInvalidRefType;

  1069 #ifndef USDT2

  1070   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1071 #else /* USDT2 */

  1072   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1073                                       (void *) ret);

  1074 #endif /* USDT2 */

  1075   return ret;

  1076 JNI_END

  1079 class JNI_ArgumentPusher : public SignatureIterator {

  1080  protected:

  1081   JavaCallArguments*  _arguments;

  1083   virtual void get_bool   () = 0;

  1084   virtual void get_char   () = 0;

  1085   virtual void get_short  () = 0;

  1086   virtual void get_byte   () = 0;

  1087   virtual void get_int    () = 0;

  1088   virtual void get_long   () = 0;

  1089   virtual void get_float  () = 0;

  1090   virtual void get_double () = 0;

  1091   virtual void get_object () = 0;

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

  1094     this->_return_type = T_ILLEGAL;

  1095     _arguments = NULL;

  1096   }

  1098  public:

  1099   virtual void iterate( uint64_t fingerprint ) = 0;

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

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

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

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

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

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

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

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

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

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

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

  1113   inline void do_void()                     { }

  1115   JavaCallArguments* arguments()     { return _arguments; }

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

  1117 };

  1120 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1121  protected:

  1122   va_list _ap;

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

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

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

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

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

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

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

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

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

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

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

  1138   inline void set_ap(va_list rap) {

  1139 #ifdef va_copy

  1140     va_copy(_ap, rap);

  1141 #elif defined (__va_copy)

  1142     __va_copy(_ap, rap);

  1143 #else

  1144     _ap = rap;

  1145 #endif

  1146   }

  1148  public:

  1149   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1150        : JNI_ArgumentPusher(signature) {

  1151     set_ap(rap);

  1152   }

  1153   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

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

  1155     set_ap(rap);

  1156   }

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

  1159   void iterate( uint64_t fingerprint ) {

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

  1161     else {

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

  1163                                   result_feature_mask);

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

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

  1167       while ( 1 ) {

  1168         switch ( fingerprint & parameter_feature_mask ) {

  1169           case bool_parm:

  1170           case char_parm:

  1171           case short_parm:

  1172           case byte_parm:

  1173           case int_parm:

  1174             get_int();

  1175             break;

  1176           case obj_parm:

  1177             get_object();

  1178             break;

  1179           case long_parm:

  1180             get_long();

  1181             break;

  1182           case float_parm:

  1183             get_float();

  1184             break;

  1185           case double_parm:

  1186             get_double();

  1187             break;

  1188           case done_parm:

  1189             return;

  1190             break;

  1191           default:

  1192             ShouldNotReachHere();

  1193             break;

  1194         }

  1195         fingerprint >>= parameter_feature_size;

  1196       }

  1197     }

  1198   }

  1199 };

  1202 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1203  protected:

  1204   const jvalue *_ap;

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

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

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

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

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

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

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

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

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

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

  1219  public:

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

  1221        : JNI_ArgumentPusher(signature) {

  1222     set_ap(rap);

  1223   }

  1224   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

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

  1226     set_ap(rap);

  1227   }

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

  1230   void iterate( uint64_t fingerprint ) {

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

  1232     else {

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

  1234                                   result_feature_mask);

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

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

  1237       while ( 1 ) {

  1238         switch ( fingerprint & parameter_feature_mask ) {

  1239           case bool_parm:

  1240             get_bool();

  1241             break;

  1242           case char_parm:

  1243             get_char();

  1244             break;

  1245           case short_parm:

  1246             get_short();

  1247             break;

  1248           case byte_parm:

  1249             get_byte();

  1250             break;

  1251           case int_parm:

  1252             get_int();

  1253             break;

  1254           case obj_parm:

  1255             get_object();

  1256             break;

  1257           case long_parm:

  1258             get_long();

  1259             break;

  1260           case float_parm:

  1261             get_float();

  1262             break;

  1263           case double_parm:

  1264             get_double();

  1265             break;

  1266           case done_parm:

  1267             return;

  1268             break;

  1269           default:

  1270             ShouldNotReachHere();

  1271             break;

  1272         }

  1273         fingerprint >>= parameter_feature_size;

  1274       }

  1275     }

  1276   }

  1277 };

  1280 enum JNICallType {

  1281   JNI_STATIC,

  1282   JNI_VIRTUAL,

  1283   JNI_NONVIRTUAL

  1284 };

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

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

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

  1292   // the jni parser

  1293   ResourceMark rm(THREAD);

  1294   int number_of_parameters = method->size_of_parameters();

  1295   JavaCallArguments java_args(number_of_parameters);

  1296   args->set_java_argument_object(&java_args);

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

  1300   // Fill out JavaCallArguments object

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

  1302   // Initialize result type

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

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

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

  1308   // Convert result

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

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

  1311   }

  1312 }

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

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

  1317   if (recv == NULL) {

  1318     THROW(vmSymbols::java_lang_NullPointerException());

  1319   }

  1320   Handle h_recv(THREAD, recv);

  1322   int number_of_parameters;

  1323   Method* selected_method;

  1324   {

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

  1326     number_of_parameters = m->size_of_parameters();

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

  1328     if (!(holder)->is_interface()) {

  1329       // non-interface call -- for that little speed boost, don't handlize

  1330       debug_only(No_Safepoint_Verifier nosafepoint;)

  1331       if (call_type == JNI_VIRTUAL) {

  1332         // jni_GetMethodID makes sure class is linked and initialized

  1333         // so m should have a valid vtable index.

  1334         assert(!m->has_itable_index(), "");

  1335         int vtbl_index = m->vtable_index();

  1336         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1337           Klass* k = h_recv->klass();

  1338           // k might be an arrayKlassOop but all vtables start at

  1339           // the same place. The cast is to avoid virtual call and assertion.

  1340           InstanceKlass *ik = (InstanceKlass*)k;

  1341           selected_method = ik->method_at_vtable(vtbl_index);

  1342         } else {

  1343           // final method

  1344           selected_method = m;

  1345         }

  1346       } else {

  1347         // JNI_NONVIRTUAL call

  1348         selected_method = m;

  1349       }

  1350     } else {

  1351       // interface call

  1352       KlassHandle h_holder(THREAD, holder);

  1354       if (call_type == JNI_VIRTUAL) {

  1355         int itbl_index = m->itable_index();

  1356         Klass* k = h_recv->klass();

  1357         selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1358       } else {

  1359         selected_method = m;

  1360       }

  1361     }

  1362   }

  1364   methodHandle method(THREAD, selected_method);

  1366   // Create object to hold arguments for the JavaCall, and associate it with

  1367   // the jni parser

  1368   ResourceMark rm(THREAD);

  1369   JavaCallArguments java_args(number_of_parameters);

  1370   args->set_java_argument_object(&java_args);

  1372   // handle arguments

  1373   assert(!method->is_static(), "method should not be static");

  1374   args->push_receiver(h_recv); // Push jobject handle

  1376   // Fill out JavaCallArguments object

  1377   args->iterate( Fingerprinter(method).fingerprint() );

  1378   // Initialize result type

  1379   result->set_type(args->get_ret_type());

  1381   // Invoke the method. Result is returned as oop.

  1382   JavaCalls::call(result, method, &java_args, CHECK);

  1384   // Convert result

  1385   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1386     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1387   }

  1388 }

  1391 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1392   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1393   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1394   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1395   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1396   return ih;

  1397 }

  1399 #ifndef USDT2

  1400 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1401 #else /* USDT2 */

  1402 DT_RETURN_MARK_DECL(AllocObject, jobject

  1403                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1404 #endif /* USDT2 */

  1406 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1407   JNIWrapper("AllocObject");

  1409 #ifndef USDT2

  1410   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1411 #else /* USDT2 */

  1412   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1413                                 env, clazz);

  1414 #endif /* USDT2 */

  1415   jobject ret = NULL;

  1416   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1418   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1419   ret = JNIHandles::make_local(env, i);

  1420   return ret;

  1421 JNI_END

  1423 #ifndef USDT2

  1424 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1425 #else /* USDT2 */

  1426 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1427                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1428 #endif /* USDT2 */

  1430 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1431   JNIWrapper("NewObjectA");

  1432 #ifndef USDT2

  1433   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1434 #else /* USDT2 */

  1435   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1436                                env, clazz, (uintptr_t) methodID);

  1437 #endif /* USDT2 */

  1438   jobject obj = NULL;

  1439   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1441   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1442   obj = JNIHandles::make_local(env, i);

  1443   JavaValue jvalue(T_VOID);

  1444   JNI_ArgumentPusherArray ap(methodID, args);

  1445   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1446   return obj;

  1447 JNI_END

  1449 #ifndef USDT2

  1450 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1451 #else /* USDT2 */

  1452 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1453                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1454 #endif /* USDT2 */

  1456 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1457   JNIWrapper("NewObjectV");

  1458 #ifndef USDT2

  1459   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1460 #else /* USDT2 */

  1461   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1462                                env, clazz, (uintptr_t) methodID);

  1463 #endif /* USDT2 */

  1464   jobject obj = NULL;

  1465   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1467   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1468   obj = JNIHandles::make_local(env, i);

  1469   JavaValue jvalue(T_VOID);

  1470   JNI_ArgumentPusherVaArg ap(methodID, args);

  1471   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1472   return obj;

  1473 JNI_END

  1475 #ifndef USDT2

  1476 DT_RETURN_MARK_DECL(NewObject, jobject);

  1477 #else /* USDT2 */

  1478 DT_RETURN_MARK_DECL(NewObject, jobject

  1479                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1480 #endif /* USDT2 */

  1482 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1483   JNIWrapper("NewObject");

  1484 #ifndef USDT2

  1485   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1486 #else /* USDT2 */

  1487   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1488                               env, clazz, (uintptr_t) methodID);

  1489 #endif /* USDT2 */

  1490   jobject obj = NULL;

  1491   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1493   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1494   obj = JNIHandles::make_local(env, i);

  1495   va_list args;

  1496   va_start(args, methodID);

  1497   JavaValue jvalue(T_VOID);

  1498   JNI_ArgumentPusherVaArg ap(methodID, args);

  1499   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1500   va_end(args);

  1501   return obj;

  1502 JNI_END

  1505 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1506   JNIWrapper("GetObjectClass");

  1507 #ifndef USDT2

  1508   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1509 #else /* USDT2 */

  1510   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1511                                    env, obj);

  1512 #endif /* USDT2 */

  1513   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1514   jclass ret =

  1515     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1516 #ifndef USDT2

  1517   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1518 #else /* USDT2 */

  1519   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1520                                     ret);

  1521 #endif /* USDT2 */

  1522   return ret;

  1523 JNI_END

  1525 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1526   JNIWrapper("IsInstanceOf");

  1527 #ifndef USDT2

  1528   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1529 #else /* USDT2 */

  1530   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1531                                  env, obj, clazz);

  1532 #endif /* USDT2 */

  1533   jboolean ret = JNI_TRUE;

  1534   if (obj != NULL) {

  1535     ret = JNI_FALSE;

  1536     Klass* k = java_lang_Class::as_Klass(

  1537       JNIHandles::resolve_non_null(clazz));

  1538     if (k != NULL) {

  1539       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1540     }

  1541   }

  1542 #ifndef USDT2

  1543   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1544 #else /* USDT2 */

  1545   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1546                                   ret);

  1547 #endif /* USDT2 */

  1548   return ret;

  1549 JNI_END

  1552 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1553                                const char *sig, bool is_static, TRAPS) {

  1554   // %%%% This code should probably just call into a method in the LinkResolver

  1555   //

  1556   // The class should have been loaded (we have an instance of the class

  1557   // passed in) so the method and signature should already be in the symbol

  1558   // table.  If they're not there, the method doesn't exist.

  1559   const char *name_to_probe = (name_str == NULL)

  1560                         ? vmSymbols::object_initializer_name()->as_C_string()

  1561                         : name_str;

  1562   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1563   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1565   if (name == NULL || signature == NULL) {

  1566     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1567   }

  1569   // Throw a NoSuchMethodError exception if we have an instance of a

  1570   // primitive java.lang.Class

  1571   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

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

  1573   }

  1575   KlassHandle klass(THREAD,

  1576                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1578   // Make sure class is linked and initialized before handing id's out to

  1579   // Method*s.

  1580   klass()->initialize(CHECK_NULL);

  1582   Method* m;

  1583   if (name == vmSymbols::object_initializer_name() ||

  1584       name == vmSymbols::class_initializer_name()) {

  1585     // Never search superclasses for constructors

  1586     if (klass->oop_is_instance()) {

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

  1588     } else {

  1589       m = NULL;

  1590     }

  1591   } else {

  1592     m = klass->lookup_method(name, signature);

  1593     if (m == NULL &&  klass->oop_is_instance()) {

  1594       m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);

  1595     }

  1596   }

  1597   if (m == NULL || (m->is_static() != is_static)) {

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

  1599   }

  1600   return m->jmethod_id();

  1601 }

  1604 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1605           const char *name, const char *sig))

  1606   JNIWrapper("GetMethodID");

  1607 #ifndef USDT2

  1608   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1609 #else /* USDT2 */

  1610   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1611                                 env, clazz, (char *) name, (char *) sig);

  1612 #endif /* USDT2 */

  1613   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1614 #ifndef USDT2

  1615   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1616 #else /* USDT2 */

  1617   HOTSPOT_JNI_GETMETHODID_RETURN(

  1618                                  (uintptr_t) ret);

  1619 #endif /* USDT2 */

  1620   return ret;

  1621 JNI_END

  1624 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1625           const char *name, const char *sig))

  1626   JNIWrapper("GetStaticMethodID");

  1627 #ifndef USDT2

  1628   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1629 #else /* USDT2 */

  1630   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1631                                       env, (char *) clazz, (char *) name, (char *)sig);

  1632 #endif /* USDT2 */

  1633   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1634 #ifndef USDT2

  1635   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1636 #else /* USDT2 */

  1637   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1638                                        (uintptr_t) ret);

  1639 #endif /* USDT2 */

  1640   return ret;

  1641 JNI_END

  1645 //

  1646 // Calling Methods

  1647 //

  1649 #ifndef USDT2

  1650 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1651 \

  1652   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

  1653   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\

  1654   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1655 \

  1656 JNI_ENTRY(ResultType, \

  1657           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1658   JNIWrapper("Call" XSTR(Result) "Method"); \

  1659 \

  1660   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1661   ResultType ret = 0;\

  1662   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1663                      (const ResultType&)ret);\

  1664 \

  1665   va_list args; \

  1666   va_start(args, methodID); \

  1667   JavaValue jvalue(Tag); \

  1668   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1669   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1670   va_end(args); \

  1671   ret = jvalue.get_##ResultType(); \

  1672   return ret;\

  1673 JNI_END \

  1674 \

  1675 \

  1676 JNI_ENTRY(ResultType, \

  1677           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1678   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1679 \

  1680   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1681   ResultType ret = 0;\

  1682   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1683                      (const ResultType&)ret);\

  1684 \

  1685   JavaValue jvalue(Tag); \

  1686   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1687   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1688   ret = jvalue.get_##ResultType(); \

  1689   return ret;\

  1690 JNI_END \

  1691 \

  1692 \

  1693 JNI_ENTRY(ResultType, \

  1694           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1695   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1696   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1697   ResultType ret = 0;\

  1698   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1699                      (const ResultType&)ret);\

  1700 \

  1701   JavaValue jvalue(Tag); \

  1702   JNI_ArgumentPusherArray ap(methodID, args); \

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

  1704   ret = jvalue.get_##ResultType(); \

  1705   return ret;\

  1706 JNI_END

  1708 // the runtime type of subword integral basic types is integer

  1709 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1710 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1711 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1712 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1714 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1715 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1716 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1717 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1718 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1720 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1721 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1722 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1724 #else /* USDT2 */

  1726 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1727                           , EntryProbe, ReturnProbe)    \

  1728 \

  1729   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1730                           , ReturnProbe);                          \

  1731 \

  1732 JNI_ENTRY(ResultType, \

  1733           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1734   JNIWrapper("Call" XSTR(Result) "Method"); \

  1735 \

  1736   EntryProbe; \

  1737   ResultType ret = 0;\

  1738   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1739                      (const ResultType&)ret);\

  1740 \

  1741   va_list args; \

  1742   va_start(args, methodID); \

  1743   JavaValue jvalue(Tag); \

  1744   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1745   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1746   va_end(args); \

  1747   ret = jvalue.get_##ResultType(); \

  1748   return ret;\

  1749 JNI_END

  1751 // the runtime type of subword integral basic types is integer

  1752 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1753                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1754                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1755 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

  1756                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1757                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1758 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

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

  1760                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1761 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

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

  1763                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1765 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1766                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1767                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1768 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

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

  1770                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1771 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

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

  1773                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1774 // Float and double probes don't return value because dtrace doesn't currently support it

  1775 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1776                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1777                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1778 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

  1779                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1780                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1782 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1783                           , EntryProbe, ReturnProbe)    \

  1784 \

  1785   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1786                           , ReturnProbe);                          \

  1787 \

  1788 JNI_ENTRY(ResultType, \

  1789           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1790   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1791 \

  1792   EntryProbe;\

  1793   ResultType ret = 0;\

  1794   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1795                      (const ResultType&)ret);\

  1796 \

  1797   JavaValue jvalue(Tag); \

  1798   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1799   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1800   ret = jvalue.get_##ResultType(); \

  1801   return ret;\

  1802 JNI_END

  1804 // the runtime type of subword integral basic types is integer

  1805 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

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

  1807                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1808 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

  1809                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1810                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1811 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

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

  1813                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1814 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

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

  1816                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1818 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1819                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1820                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1821 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

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

  1823                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1824 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1826                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1827 // Float and double probes don't return value because dtrace doesn't currently support it

  1828 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1829                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1830                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1831 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

  1832                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1833                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1835 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1836                           , EntryProbe, ReturnProbe)    \

  1837 \

  1838   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1839                           , ReturnProbe);                          \

  1840 \

  1841 JNI_ENTRY(ResultType, \

  1842           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1843   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1844   EntryProbe; \

  1845   ResultType ret = 0;\

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

  1847                      (const ResultType&)ret);\

  1848 \

  1849   JavaValue jvalue(Tag); \

  1850   JNI_ArgumentPusherArray ap(methodID, args); \

  1851   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1852   ret = jvalue.get_##ResultType(); \

  1853   return ret;\

  1854 JNI_END

  1856 // the runtime type of subword integral basic types is integer

  1857 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

  1858                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1859                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1860 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

  1861                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1862                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1863 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

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

  1865                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1866 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

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

  1868                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1870 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1871                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1872                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1873 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

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

  1875                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1876 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

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

  1878                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1879 // Float and double probes don't return value because dtrace doesn't currently support it

  1880 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1881                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1882                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1883 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1884                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1885                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1887 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1888 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1889 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1891 #endif /* USDT2 */

  1893 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1894   JNIWrapper("CallVoidMethod");

  1895 #ifndef USDT2

  1896   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1897 #else /* USDT2 */

  1898   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1899                                    env, obj, (uintptr_t) methodID);

  1900 #endif /* USDT2 */

  1901   DT_VOID_RETURN_MARK(CallVoidMethod);

  1903   va_list args;

  1904   va_start(args, methodID);

  1905   JavaValue jvalue(T_VOID);

  1906   JNI_ArgumentPusherVaArg ap(methodID, args);

  1907   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1908   va_end(args);

  1909 JNI_END

  1912 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1913   JNIWrapper("CallVoidMethodV");

  1914 #ifndef USDT2

  1915   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1916 #else /* USDT2 */

  1917   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1918                                     env, obj, (uintptr_t) methodID);

  1919 #endif /* USDT2 */

  1920   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1922   JavaValue jvalue(T_VOID);

  1923   JNI_ArgumentPusherVaArg ap(methodID, args);

  1924   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1925 JNI_END

  1928 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1929   JNIWrapper("CallVoidMethodA");

  1930 #ifndef USDT2

  1931   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1932 #else /* USDT2 */

  1933   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1934                                     env, obj, (uintptr_t) methodID);

  1935 #endif /* USDT2 */

  1936   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1938   JavaValue jvalue(T_VOID);

  1939   JNI_ArgumentPusherArray ap(methodID, args);

  1940   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1941 JNI_END

  1944 #ifndef USDT2

  1945 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1946 \

  1947   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

  1948   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\

  1949   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1950 \

  1951 JNI_ENTRY(ResultType, \

  1952           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1953   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1954 \

  1955   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1956   ResultType ret;\

  1957   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1958                      (const ResultType&)ret);\

  1959 \

  1960   va_list args; \

  1961   va_start(args, methodID); \

  1962   JavaValue jvalue(Tag); \

  1963   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1964   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1965   va_end(args); \

  1966   ret = jvalue.get_##ResultType(); \

  1967   return ret;\

  1968 JNI_END \

  1969 \

  1970 JNI_ENTRY(ResultType, \

  1971           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  1972   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  1973   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  1974   ResultType ret;\

  1975   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  1976                      (const ResultType&)ret);\

  1977 \

  1978   JavaValue jvalue(Tag); \

  1979   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1980   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1981   ret = jvalue.get_##ResultType(); \

  1982   return ret;\

  1983 JNI_END \

  1984 \

  1985 JNI_ENTRY(ResultType, \

  1986           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

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

  1988   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  1989   ResultType ret;\

  1990   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  1991                      (const ResultType&)ret);\

  1992 \

  1993   JavaValue jvalue(Tag); \

  1994   JNI_ArgumentPusherArray ap(methodID, args); \

  1995   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1996   ret = jvalue.get_##ResultType(); \

  1997   return ret;\

  1998 JNI_END

  2000 // the runtime type of subword integral basic types is integer

  2001 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2002 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2003 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2004 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2006 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2007 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2008 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2009 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2010 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2013 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2014 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2015 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2017 #else /* USDT2 */

  2019 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2020                                     , EntryProbe, ReturnProbe)      \

  2021 \

  2022   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2023                           , ReturnProbe);\

  2024 \

  2025 JNI_ENTRY(ResultType, \

  2026           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2027   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2028 \

  2029   EntryProbe;\

  2030   ResultType ret;\

  2031   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2032                      (const ResultType&)ret);\

  2033 \

  2034   va_list args; \

  2035   va_start(args, methodID); \

  2036   JavaValue jvalue(Tag); \

  2037   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2038   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2039   va_end(args); \

  2040   ret = jvalue.get_##ResultType(); \

  2041   return ret;\

  2042 JNI_END

  2044 // the runtime type of subword integral basic types is integer

  2045 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2046                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2047                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2048 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

  2049                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2050                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2051 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

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

  2053                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2054 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

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

  2056                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2058 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2059                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2060                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2061 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

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

  2063                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2064 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

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

  2066 // Float and double probes don't return value because dtrace doesn't currently support it

  2067                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2068 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2069                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2070                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2071 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

  2072                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2073                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2075 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2076                                     , EntryProbe, ReturnProbe)      \

  2077 \

  2078   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2079                           , ReturnProbe);\

  2080 \

  2081 JNI_ENTRY(ResultType, \

  2082           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2083   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2084 \

  2085   EntryProbe;\

  2086   ResultType ret;\

  2087   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2088                      (const ResultType&)ret);\

  2089 \

  2090   JavaValue jvalue(Tag); \

  2091   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2092   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2093   ret = jvalue.get_##ResultType(); \

  2094   return ret;\

  2095 JNI_END

  2097 // the runtime type of subword integral basic types is integer

  2098 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2100                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2101 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

  2102                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2103                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2104 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

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

  2106                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2107 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

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

  2109                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2111 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2112                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2113                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2114 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

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

  2116                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2117 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

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

  2119 // Float and double probes don't return value because dtrace doesn't currently support it

  2120                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2121 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2122                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2123                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2124 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

  2125                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2126                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2128 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2129                                     , EntryProbe, ReturnProbe)      \

  2130 \

  2131   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2132                           , ReturnProbe);\

  2133 \

  2134 JNI_ENTRY(ResultType, \

  2135           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2136   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2137 \

  2138   EntryProbe;\

  2139   ResultType ret;\

  2140   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2141                      (const ResultType&)ret);\

  2142 \

  2143   JavaValue jvalue(Tag); \

  2144   JNI_ArgumentPusherArray ap(methodID, args); \

  2145   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2146   ret = jvalue.get_##ResultType(); \

  2147   return ret;\

  2148 JNI_END

  2150 // the runtime type of subword integral basic types is integer

  2151 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2153                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2154 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

  2155                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2156                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2157 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

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

  2159                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2160 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

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

  2162                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2164 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2165                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2166                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2167 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

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

  2169                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2170 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2172 // Float and double probes don't return value because dtrace doesn't currently support it

  2173                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2174 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2175                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2176                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2177 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2178                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2179                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2181 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2182                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2183 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2184                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2185 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2186                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2187 #endif /* USDT2 */

  2189 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2190   JNIWrapper("CallNonvirtualVoidMethod");

  2192 #ifndef USDT2

  2193   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2194                env, obj, cls, methodID);

  2195 #else /* USDT2 */

  2196   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2197                env, obj, cls, (uintptr_t) methodID);

  2198 #endif /* USDT2 */

  2199   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2201   va_list args;

  2202   va_start(args, methodID);

  2203   JavaValue jvalue(T_VOID);

  2204   JNI_ArgumentPusherVaArg ap(methodID, args);

  2205   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2206   va_end(args);

  2207 JNI_END

  2210 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2211   JNIWrapper("CallNonvirtualVoidMethodV");

  2213 #ifndef USDT2

  2214   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2215                env, obj, cls, methodID);

  2216 #else /* USDT2 */

  2217   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2218                env, obj, cls, (uintptr_t) methodID);

  2219 #endif /* USDT2 */

  2220   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2222   JavaValue jvalue(T_VOID);

  2223   JNI_ArgumentPusherVaArg ap(methodID, args);

  2224   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2225 JNI_END

  2228 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2229   JNIWrapper("CallNonvirtualVoidMethodA");

  2230 #ifndef USDT2

  2231   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2232                 env, obj, cls, methodID);

  2233 #else /* USDT2 */

  2234   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2235                 env, obj, cls, (uintptr_t) methodID);

  2236 #endif /* USDT2 */

  2237   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2238   JavaValue jvalue(T_VOID);

  2239   JNI_ArgumentPusherArray ap(methodID, args);

  2240   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2241 JNI_END

  2244 #ifndef USDT2

  2245 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2246 \

  2247   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

  2248   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\

  2249   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2250 \

  2251 JNI_ENTRY(ResultType, \

  2252           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2253   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2254 \

  2255   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2256   ResultType ret = 0;\

  2257   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2258                      (const ResultType&)ret);\

  2259 \

  2260   va_list args; \

  2261   va_start(args, methodID); \

  2262   JavaValue jvalue(Tag); \

  2263   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2264   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2265   va_end(args); \

  2266   ret = jvalue.get_##ResultType(); \

  2267   return ret;\

  2268 JNI_END \

  2269 \

  2270 JNI_ENTRY(ResultType, \

  2271           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2272   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2273   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2274   ResultType ret = 0;\

  2275   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2276                      (const ResultType&)ret);\

  2277 \

  2278   JavaValue jvalue(Tag); \

  2279   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2280   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2281   ret = jvalue.get_##ResultType(); \

  2282   return ret;\

  2283 JNI_END \

  2284 \

  2285 JNI_ENTRY(ResultType, \

  2286           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

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

  2288   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2289   ResultType ret = 0;\

  2290   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2291                      (const ResultType&)ret);\

  2292 \

  2293   JavaValue jvalue(Tag); \

  2294   JNI_ArgumentPusherArray ap(methodID, args); \

  2295   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2296   ret = jvalue.get_##ResultType(); \

  2297   return ret;\

  2298 JNI_END

  2300 // the runtime type of subword integral basic types is integer

  2301 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2302 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2303 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2304 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2306 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2307 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2308 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2309 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2310 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2313 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2314 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2315 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2317 #else /* USDT2 */

  2319 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2320                                 , EntryProbe, ResultProbe) \

  2321 \

  2322   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2323                           , ResultProbe);                               \

  2324 \

  2325 JNI_ENTRY(ResultType, \

  2326           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2327   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2328 \

  2329   EntryProbe; \

  2330   ResultType ret = 0;\

  2331   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2332                      (const ResultType&)ret);\

  2333 \

  2334   va_list args; \

  2335   va_start(args, methodID); \

  2336   JavaValue jvalue(Tag); \

  2337   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2338   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2339   va_end(args); \

  2340   ret = jvalue.get_##ResultType(); \

  2341   return ret;\

  2342 JNI_END

  2344 // the runtime type of subword integral basic types is integer

  2345 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2346                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2347                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2348 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

  2349                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2350                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2351 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

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

  2353                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2354 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

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

  2356                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2358 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2359                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2360                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2361 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

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

  2363                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2364 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2366                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2367 // Float and double probes don't return value because dtrace doesn't currently support it

  2368 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2369                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2370                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2371 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

  2372                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2373                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2375 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2376                                 , EntryProbe, ResultProbe) \

  2377 \

  2378   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2379                           , ResultProbe);                               \

  2380 \

  2381 JNI_ENTRY(ResultType, \

  2382           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2383   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2384 \

  2385   EntryProbe; \

  2386   ResultType ret = 0;\

  2387   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2388                      (const ResultType&)ret);\

  2389 \

  2390   JavaValue jvalue(Tag); \

  2391   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2392   /* Make sure class is initialized before trying to invoke its method */ \

  2393   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2394   k()->initialize(CHECK_0); \

  2395   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2396   va_end(args); \

  2397   ret = jvalue.get_##ResultType(); \

  2398   return ret;\

  2399 JNI_END

  2401 // the runtime type of subword integral basic types is integer

  2402 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2404                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2405 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

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

  2407                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2408 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

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

  2410                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2411 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

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

  2413                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2415 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2416                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2417                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2418 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

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

  2420                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2421 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

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

  2423                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2424 // Float and double probes don't return value because dtrace doesn't currently support it

  2425 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2426                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2427                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2428 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

  2429                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2430                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2432 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2433                                 , EntryProbe, ResultProbe) \

  2434 \

  2435   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2436                           , ResultProbe);                               \

  2437 \

  2438 JNI_ENTRY(ResultType, \

  2439           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2440   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2441 \

  2442   EntryProbe; \

  2443   ResultType ret = 0;\

  2444   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2445                      (const ResultType&)ret);\

  2446 \

  2447   JavaValue jvalue(Tag); \

  2448   JNI_ArgumentPusherArray ap(methodID, args); \

  2449   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2450   ret = jvalue.get_##ResultType(); \

  2451   return ret;\

  2452 JNI_END

  2454 // the runtime type of subword integral basic types is integer

  2455 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2457                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2458 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

  2459                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2460                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2461 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

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

  2463                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2464 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

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

  2466                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2468 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2469                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2470                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2471 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

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

  2473                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2474 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

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

  2476                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2477 // Float and double probes don't return value because dtrace doesn't currently support it

  2478 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2479                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2480                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2481 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2482                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2483                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2485 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2486                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2487 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2488                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2489 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2490                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2491 #endif /* USDT2 */

  2493 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2494   JNIWrapper("CallStaticVoidMethod");

  2495 #ifndef USDT2

  2496   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2497 #else /* USDT2 */

  2498   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2499                                          env, cls, (uintptr_t) methodID);

  2500 #endif /* USDT2 */

  2501   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2503   va_list args;

  2504   va_start(args, methodID);

  2505   JavaValue jvalue(T_VOID);

  2506   JNI_ArgumentPusherVaArg ap(methodID, args);

  2507   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2508   va_end(args);

  2509 JNI_END

  2512 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2513   JNIWrapper("CallStaticVoidMethodV");

  2514 #ifndef USDT2

  2515   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2516 #else /* USDT2 */

  2517   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2518                                           env, cls, (uintptr_t) methodID);

  2519 #endif /* USDT2 */

  2520   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2522   JavaValue jvalue(T_VOID);

  2523   JNI_ArgumentPusherVaArg ap(methodID, args);

  2524   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2525 JNI_END

  2528 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2529   JNIWrapper("CallStaticVoidMethodA");

  2530 #ifndef USDT2

  2531   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2532 #else /* USDT2 */

  2533   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2534                                           env, cls, (uintptr_t) methodID);

  2535 #endif /* USDT2 */

  2536   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2538   JavaValue jvalue(T_VOID);

  2539   JNI_ArgumentPusherArray ap(methodID, args);

  2540   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2541 JNI_END

  2544 //

  2545 // Accessing Fields

  2546 //

  2549 #ifndef USDT2

  2550 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2551 #else /* USDT2 */

  2552 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2553                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2554 #endif /* USDT2 */

  2556 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2557           const char *name, const char *sig))

  2558   JNIWrapper("GetFieldID");

  2559 #ifndef USDT2

  2560   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2561 #else /* USDT2 */

  2562   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2563                                env, clazz, (char *) name, (char *) sig);

  2564 #endif /* USDT2 */

  2565   jfieldID ret = 0;

  2566   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2568   // The class should have been loaded (we have an instance of the class

  2569   // passed in) so the field and signature should already be in the symbol

  2570   // table.  If they're not there, the field doesn't exist.

  2571   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2572   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2573   if (fieldname == NULL || signame == NULL) {

  2574     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2575   }

  2576   KlassHandle k(THREAD,

  2577                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2578   // Make sure class is initialized before handing id's out to fields

  2579   k()->initialize(CHECK_NULL);

  2581   fieldDescriptor fd;

  2582   if (!k()->oop_is_instance() ||

  2583       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2584     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2585   }

  2587   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2588   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2589   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2590   return ret;

  2591 JNI_END

  2594 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2595   JNIWrapper("GetObjectField");

  2596 #ifndef USDT2

  2597   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2598 #else /* USDT2 */

  2599   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2600                                    env, obj, (uintptr_t) fieldID);

  2601 #endif /* USDT2 */

  2602   oop o = JNIHandles::resolve_non_null(obj);

  2603   Klass* k = o->klass();

  2604   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2605   // Keep JVMTI addition small and only check enabled flag here.

  2606   // jni_GetField_probe() assumes that is okay to create handles.

  2607   if (JvmtiExport::should_post_field_access()) {

  2608     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2609   }

  2610   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2611 #if INCLUDE_ALL_GCS

  2612   // If G1 is enabled and we are accessing the value of the referent

  2613   // field in a reference object then we need to register a non-null

  2614   // referent with the SATB barrier.

  2615   if (UseG1GC) {

  2616     bool needs_barrier = false;

  2618     if (ret != NULL &&

  2619         offset == java_lang_ref_Reference::referent_offset &&

  2620         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2621       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2622       needs_barrier = true;

  2623     }

  2625     if (needs_barrier) {

  2626       oop referent = JNIHandles::resolve(ret);

  2627       G1SATBCardTableModRefBS::enqueue(referent);

  2628     }

  2629   }

  2630 #endif // INCLUDE_ALL_GCS

  2631 #ifndef USDT2

  2632   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2633 #else /* USDT2 */

  2634 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2635                                   ret);

  2636 #endif /* USDT2 */

  2637   return ret;

  2638 JNI_END

  2641 #ifndef USDT2

  2642 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2643 \

  2644   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2645 \

  2646 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2647   JNIWrapper("Get" XSTR(Result) "Field"); \

  2648 \

  2649   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2650   Return ret = 0;\

  2651   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2652 \

  2653   oop o = JNIHandles::resolve_non_null(obj); \

  2654   Klass* k = o->klass(); \

  2655   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2656   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2657   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2658   /* and creates a ResetNoHandleMark.                                   */ \

  2659   if (JvmtiExport::should_post_field_access()) { \

  2660     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2661   } \

  2662   ret = o->Fieldname##_field(offset); \

  2663   return ret; \

  2664 JNI_END

  2666 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2667 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2668 DEFINE_GETFIELD(jchar,    char,   Char)

  2669 DEFINE_GETFIELD(jshort,   short,  Short)

  2670 DEFINE_GETFIELD(jint,     int,    Int)

  2671 DEFINE_GETFIELD(jlong,    long,   Long)

  2672 DEFINE_GETFIELD(jfloat,   float,  Float)

  2673 DEFINE_GETFIELD(jdouble,  double, Double)

  2675 #else /* USDT2 */

  2677 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2678   , EntryProbe, ReturnProbe) \

  2679 \

  2680   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2681   , ReturnProbe); \

  2682 \

  2683 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2684   JNIWrapper("Get" XSTR(Result) "Field"); \

  2685 \

  2686   EntryProbe; \

  2687   Return ret = 0;\

  2688   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2689 \

  2690   oop o = JNIHandles::resolve_non_null(obj); \

  2691   Klass* k = o->klass(); \

  2692   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2693   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2694   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2695   /* and creates a ResetNoHandleMark.                                   */ \

  2696   if (JvmtiExport::should_post_field_access()) { \

  2697     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2698   } \

  2699   ret = o->Fieldname##_field(offset); \

  2700   return ret; \

  2701 JNI_END

  2703 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2704                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2705                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2706 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2707                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2708                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2709 DEFINE_GETFIELD(jchar,    char,   Char

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

  2711                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2712 DEFINE_GETFIELD(jshort,   short,  Short

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

  2714                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2715 DEFINE_GETFIELD(jint,     int,    Int

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

  2717                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2718 DEFINE_GETFIELD(jlong,    long,   Long

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

  2720                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2721 // Float and double probes don't return value because dtrace doesn't currently support it

  2722 DEFINE_GETFIELD(jfloat,   float,  Float

  2723                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2724                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2725 DEFINE_GETFIELD(jdouble,  double, Double

  2726                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2727                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2728 #endif /* USDT2 */

  2730 address jni_GetBooleanField_addr() {

  2731   return (address)jni_GetBooleanField;

  2732 }

  2733 address jni_GetByteField_addr() {

  2734   return (address)jni_GetByteField;

  2735 }

  2736 address jni_GetCharField_addr() {

  2737   return (address)jni_GetCharField;

  2738 }

  2739 address jni_GetShortField_addr() {

  2740   return (address)jni_GetShortField;

  2741 }

  2742 address jni_GetIntField_addr() {

  2743   return (address)jni_GetIntField;

  2744 }

  2745 address jni_GetLongField_addr() {

  2746   return (address)jni_GetLongField;

  2747 }

  2748 address jni_GetFloatField_addr() {

  2749   return (address)jni_GetFloatField;

  2750 }

  2751 address jni_GetDoubleField_addr() {

  2752   return (address)jni_GetDoubleField;

  2753 }

  2755 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2756   JNIWrapper("SetObjectField");

  2757 #ifndef USDT2

  2758   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2759 #else /* USDT2 */

  2760   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2761                                    env, obj, (uintptr_t) fieldID, value);

  2762 #endif /* USDT2 */

  2763   oop o = JNIHandles::resolve_non_null(obj);

  2764   Klass* k = o->klass();

  2765   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2766   // Keep JVMTI addition small and only check enabled flag here.

  2767   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2768   // and creates a ResetNoHandleMark.

  2769   if (JvmtiExport::should_post_field_modification()) {

  2770     jvalue field_value;

  2771     field_value.l = value;

  2772     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2773   }

  2774   o->obj_field_put(offset, JNIHandles::resolve(value));

  2775 #ifndef USDT2

  2776   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2777 #else /* USDT2 */

  2778   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2779 );

  2780 #endif /* USDT2 */

  2781 JNI_END

  2783 #ifndef USDT2

  2784 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2785 \

  2786 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2787   JNIWrapper("Set" XSTR(Result) "Field"); \

  2788 \

  2789   FP_SELECT_##Result( \

  2790     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2791     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2792 \

  2793   oop o = JNIHandles::resolve_non_null(obj); \

  2794   Klass* k = o->klass(); \

  2795   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2796   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2797   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2798   /* and creates a ResetNoHandleMark.                                   */ \

  2799   if (JvmtiExport::should_post_field_modification()) { \

  2800     jvalue field_value; \

  2801     field_value.unionType = value; \

  2802     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2803   } \

  2804   o->Fieldname##_field_put(offset, value); \

  2805   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2806 JNI_END

  2808 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2809 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2810 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2811 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2812 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2813 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2814 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2815 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2817 #else /* USDT2 */

  2819 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2820                         , EntryProbe, ReturnProbe) \

  2821 \

  2822 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2823   JNIWrapper("Set" XSTR(Result) "Field"); \

  2824 \

  2825   EntryProbe; \

  2826 \

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

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

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

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

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

  2832   /* and creates a ResetNoHandleMark.                                   */ \

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

  2834     jvalue field_value; \

  2835     field_value.unionType = value; \

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

  2837   } \

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

  2839   ReturnProbe; \

  2840 JNI_END

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

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

  2844                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2845 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

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

  2847                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2848 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

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

  2850                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2851 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

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

  2853                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2854 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

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

  2856                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2857 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

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

  2859                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2860 // Float and double probes don't return value because dtrace doesn't currently support it

  2861 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2862                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2863                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2864 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2865                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2866                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2867 #endif /* USDT2 */

  2869 #ifndef USDT2

  2870 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2871 #else /* USDT2 */

  2872 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2873                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2874 #endif /* USDT2 */

  2876 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2877   JNIWrapper("ToReflectedField");

  2878 #ifndef USDT2

  2879   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2880                 env, cls, fieldID, isStatic);

  2881 #else /* USDT2 */

  2882   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2883                 env, cls, (uintptr_t) fieldID, isStatic);

  2884 #endif /* USDT2 */

  2885   jobject ret = NULL;

  2886   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2888   fieldDescriptor fd;

  2889   bool found = false;

  2890   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2892   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2894   if (isStatic) {

  2895     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2896     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2897     assert(id->is_static_field_id(), "invalid static field id");

  2898     found = id->find_local_field(&fd);

  2899   } else {

  2900     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2901     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2902     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2903   }

  2904   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2905   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2906   ret = JNIHandles::make_local(env, reflected);

  2907   return ret;

  2908 JNI_END

  2911 //

  2912 // Accessing Static Fields

  2913 //

  2914 #ifndef USDT2

  2915 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2916 #else /* USDT2 */

  2917 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2918                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2919 #endif /* USDT2 */

  2921 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2922           const char *name, const char *sig))

  2923   JNIWrapper("GetStaticFieldID");

  2924 #ifndef USDT2

  2925   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2926 #else /* USDT2 */

  2927   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2928                                      env, clazz, (char *) name, (char *) sig);

  2929 #endif /* USDT2 */

  2930   jfieldID ret = NULL;

  2931   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2933   // The class should have been loaded (we have an instance of the class

  2934   // passed in) so the field and signature should already be in the symbol

  2935   // table.  If they're not there, the field doesn't exist.

  2936   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2937   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2938   if (fieldname == NULL || signame == NULL) {

  2939     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2940   }

  2941   KlassHandle k(THREAD,

  2942                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2943   // Make sure class is initialized before handing id's out to static fields

  2944   k()->initialize(CHECK_NULL);

  2946   fieldDescriptor fd;

  2947   if (!k()->oop_is_instance() ||

  2948       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2949     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2950   }

  2952   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2953   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2954   debug_only(id->set_is_static_field_id();)

  2956   debug_only(id->verify(fd.field_holder()));

  2958   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2959   return ret;

  2960 JNI_END

  2963 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2964   JNIWrapper("GetStaticObjectField");

  2965 #ifndef USDT2

  2966   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  2967 #else /* USDT2 */

  2968   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  2969                                          env, clazz, (uintptr_t) fieldID);

  2970 #endif /* USDT2 */

  2971 #if INCLUDE_JNI_CHECK

  2972   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  2973 #endif // INCLUDE_JNI_CHECK

  2974   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2975   assert(id->is_static_field_id(), "invalid static field id");

  2976   // Keep JVMTI addition small and only check enabled flag here.

  2977   // jni_GetField_probe() assumes that is okay to create handles.

  2978   if (JvmtiExport::should_post_field_access()) {

  2979     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  2980   }

  2981   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  2982 #ifndef USDT2

  2983   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  2984 #else /* USDT2 */

  2985   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  2986                                           ret);

  2987 #endif /* USDT2 */

  2988   return ret;

  2989 JNI_END

  2991 #ifndef USDT2

  2992 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  2993 \

  2994   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  2995 \

  2996 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  2997   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  2998   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  2999   Return ret = 0;\

  3000   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3001                      (const Return&)ret);\

  3002   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3003   assert(id->is_static_field_id(), "invalid static field id"); \

  3004   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3005   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3006   if (JvmtiExport::should_post_field_access()) { \

  3007     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3008   } \

  3009   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3010   return ret;\

  3011 JNI_END

  3013 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3014 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3015 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3016 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3017 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3018 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3019 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3020 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3022 #else /* USDT2 */

  3024 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3025                               , EntryProbe, ReturnProbe) \

  3026 \

  3027   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3028                           , ReturnProbe);                                          \

  3029 \

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

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

  3032   EntryProbe; \

  3033   Return ret = 0;\

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

  3035                      (const Return&)ret);\

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

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

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

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

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

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

  3042   } \

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

  3044   return ret;\

  3045 JNI_END

  3047 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3048                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3049 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3050                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3051 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3052                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3053 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3054                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3055 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3056                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3057 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3058                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3059 // Float and double probes don't return value because dtrace doesn't currently support it

  3060 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3061                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3062 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3063                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3064 #endif /* USDT2 */

  3066 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3067   JNIWrapper("SetStaticObjectField");

  3068 #ifndef USDT2

  3069   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3070 #else /* USDT2 */

  3071  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3072                                         env, clazz, (uintptr_t) fieldID, value);

  3073 #endif /* USDT2 */

  3074   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3075   assert(id->is_static_field_id(), "invalid static field id");

  3076   // Keep JVMTI addition small and only check enabled flag here.

  3077   // jni_SetField_probe() assumes that is okay to create handles.

  3078   if (JvmtiExport::should_post_field_modification()) {

  3079     jvalue field_value;

  3080     field_value.l = value;

  3081     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3082   }

  3083   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3084 #ifndef USDT2

  3085   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3086 #else /* USDT2 */

  3087   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3088                                           );

  3089 #endif /* USDT2 */

  3090 JNI_END

  3093 #ifndef USDT2

  3094 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3095 \

  3096 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3097   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3098   FP_SELECT_##Result( \

  3099      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3100      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3101 \

  3102   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3103   assert(id->is_static_field_id(), "invalid static field id"); \

  3104   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3105   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3106   if (JvmtiExport::should_post_field_modification()) { \

  3107     jvalue field_value; \

  3108     field_value.unionType = value; \

  3109     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3110   } \

  3111   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3112   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3113 JNI_END

  3115 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3116 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3117 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3118 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3119 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3120 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3121 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3122 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3124 #else /* USDT2 */

  3126 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3127                               , EntryProbe, ReturnProbe) \

  3128 \

  3129 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3130   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3131   EntryProbe; \

  3132 \

  3133   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3134   assert(id->is_static_field_id(), "invalid static field id"); \

  3135   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3136   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3137   if (JvmtiExport::should_post_field_modification()) { \

  3138     jvalue field_value; \

  3139     field_value.unionType = value; \

  3140     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3141   } \

  3142   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3143   ReturnProbe;\

  3144 JNI_END

  3146 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3147                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3148                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3149 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3150                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3151                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3152 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3153                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3154                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3155 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3156                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3157                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3158 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3159                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3160                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3161 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3162                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3163                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3164 // Float and double probes don't return value because dtrace doesn't currently support it

  3165 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3166                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3167                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3168 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3169                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3170                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3171 #endif /* USDT2 */

  3173 //

  3174 // String Operations

  3175 //

  3177 // Unicode Interface

  3179 #ifndef USDT2

  3180 DT_RETURN_MARK_DECL(NewString, jstring);

  3181 #else /* USDT2 */

  3182 DT_RETURN_MARK_DECL(NewString, jstring

  3183                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3184 #endif /* USDT2 */

  3186 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3187   JNIWrapper("NewString");

  3188 #ifndef USDT2

  3189   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3190 #else /* USDT2 */

  3191  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3192                              env, (uint16_t *) unicodeChars, len);

  3193 #endif /* USDT2 */

  3194   jstring ret = NULL;

  3195   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3196   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3197   ret = (jstring) JNIHandles::make_local(env, string);

  3198   return ret;

  3199 JNI_END

  3202 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3203   JNIWrapper("GetStringLength");

  3204 #ifndef USDT2

  3205   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3206 #else /* USDT2 */

  3207   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3208                                     env, string);

  3209 #endif /* USDT2 */

  3210   jsize ret = 0;

  3211   oop s = JNIHandles::resolve_non_null(string);

  3212   if (java_lang_String::value(s) != NULL) {

  3213     ret = java_lang_String::length(s);

  3214   }

  3215 #ifndef USDT2

  3216   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3217 #else /* USDT2 */

  3218  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3219                                     ret);

  3220 #endif /* USDT2 */

  3221   return ret;

  3222 JNI_END

  3225 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3226   JNIEnv *env, jstring string, jboolean *isCopy))

  3227   JNIWrapper("GetStringChars");

  3228 #ifndef USDT2

  3229   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3230 #else /* USDT2 */

  3231  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3232                                   env, string, (uintptr_t *) isCopy);

  3233 #endif /* USDT2 */

  3234   jchar* buf = NULL;

  3235   oop s = JNIHandles::resolve_non_null(string);

  3236   typeArrayOop s_value = java_lang_String::value(s);

  3237   if (s_value != NULL) {

  3238     int s_len = java_lang_String::length(s);

  3239     int s_offset = java_lang_String::offset(s);

  3240     buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3241     /* JNI Specification states return NULL on OOM */

  3242     if (buf != NULL) {

  3243       if (s_len > 0) {

  3244         memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3245       }

  3246       buf[s_len] = 0;

  3247       //%note jni_5

  3248       if (isCopy != NULL) {

  3249         *isCopy = JNI_TRUE;

  3250       }

  3251     }

  3252   }

  3253 #ifndef USDT2

  3254   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3255 #else /* USDT2 */

  3256   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3257                                     buf);

  3258 #endif /* USDT2 */

  3259   return buf;

  3260 JNI_END

  3263 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3264   JNIWrapper("ReleaseStringChars");

  3265 #ifndef USDT2

  3266   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3267 #else /* USDT2 */

  3268   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3269                                        env, str, (uint16_t *) chars);

  3270 #endif /* USDT2 */

  3271   //%note jni_6

  3272   if (chars != NULL) {

  3273     // Since String objects are supposed to be immutable, don't copy any

  3274     // new data back.  A bad user will have to go after the char array.

  3275     FreeHeap((void*) chars);

  3276   }

  3277 #ifndef USDT2

  3278   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3279 #else /* USDT2 */

  3280   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3281 );

  3282 #endif /* USDT2 */

  3283 JNI_END

  3286 // UTF Interface

  3288 #ifndef USDT2

  3289 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3290 #else /* USDT2 */

  3291 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3292                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3293 #endif /* USDT2 */

  3295 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3296   JNIWrapper("NewStringUTF");

  3297 #ifndef USDT2

  3298   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3299 #else /* USDT2 */

  3300   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3301                                  env, (char *) bytes);

  3302 #endif /* USDT2 */

  3303   jstring ret;

  3304   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3306   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3307   ret = (jstring) JNIHandles::make_local(env, result);

  3308   return ret;

  3309 JNI_END

  3312 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3313   JNIWrapper("GetStringUTFLength");

  3314 #ifndef USDT2

  3315   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3316 #else /* USDT2 */

  3317  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3318                                       env, string);

  3319 #endif /* USDT2 */

  3320   jsize ret = 0;

  3321   oop java_string = JNIHandles::resolve_non_null(string);

  3322   if (java_lang_String::value(java_string) != NULL) {

  3323     ret = java_lang_String::utf8_length(java_string);

  3324   }

  3325 #ifndef USDT2

  3326   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3327 #else /* USDT2 */

  3328   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3329                                         ret);

  3330 #endif /* USDT2 */

  3331   return ret;

  3332 JNI_END

  3335 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3336   JNIWrapper("GetStringUTFChars");

  3337 #ifndef USDT2

  3338   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3339 #else /* USDT2 */

  3340  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3341                                      env, string, (uintptr_t *) isCopy);

  3342 #endif /* USDT2 */

  3343   char* result = NULL;

  3344   oop java_string = JNIHandles::resolve_non_null(string);

  3345   if (java_lang_String::value(java_string) != NULL) {

  3346     size_t length = java_lang_String::utf8_length(java_string);

  3347     /* JNI Specification states return NULL on OOM */

  3348     result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);

  3349     if (result != NULL) {

  3350       java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3351       if (isCopy != NULL) {

  3352         *isCopy = JNI_TRUE;

  3353       }

  3354     }

  3355   }

  3356 #ifndef USDT2

  3357   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3358 #else /* USDT2 */

  3359  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3360                                       result);

  3361 #endif /* USDT2 */

  3362   return result;

  3363 JNI_END

  3366 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3367   JNIWrapper("ReleaseStringUTFChars");

  3368 #ifndef USDT2

  3369   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3370 #else /* USDT2 */

  3371  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3372                                          env, str, (char *) chars);

  3373 #endif /* USDT2 */

  3374   if (chars != NULL) {

  3375     FreeHeap((char*) chars);

  3376   }

  3377 #ifndef USDT2

  3378   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3379 #else /* USDT2 */

  3380 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3381 );

  3382 #endif /* USDT2 */

  3383 JNI_END

  3386 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3387   JNIWrapper("GetArrayLength");

  3388 #ifndef USDT2

  3389   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3390 #else /* USDT2 */

  3391  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3392                                   env, array);

  3393 #endif /* USDT2 */

  3394   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3395   assert(a->is_array(), "must be array");

  3396   jsize ret = a->length();

  3397 #ifndef USDT2

  3398   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3399 #else /* USDT2 */

  3400  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3401                                    ret);

  3402 #endif /* USDT2 */

  3403   return ret;

  3404 JNI_END

  3407 //

  3408 // Object Array Operations

  3409 //

  3411 #ifndef USDT2

  3412 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3413 #else /* USDT2 */

  3414 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3415                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3416 #endif /* USDT2 */

  3418 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3419   JNIWrapper("NewObjectArray");

  3420 #ifndef USDT2

  3421   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3422 #else /* USDT2 */

  3423  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3424                                   env, length, elementClass, initialElement);

  3425 #endif /* USDT2 */

  3426   jobjectArray ret = NULL;

  3427   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3428   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3429   Klass* ako = ek()->array_klass(CHECK_NULL);

  3430   KlassHandle ak = KlassHandle(THREAD, ako);

  3431   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3432   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3433   oop initial_value = JNIHandles::resolve(initialElement);

  3434   if (initial_value != NULL) {  // array already initialized with NULL

  3435     for (int index = 0; index < length; index++) {

  3436       result->obj_at_put(index, initial_value);

  3437     }

  3438   }

  3439   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3440   return ret;

  3441 JNI_END

  3443 #ifndef USDT2

  3444 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3445 #else /* USDT2 */

  3446 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3447                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3448 #endif /* USDT2 */

  3450 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3451   JNIWrapper("GetObjectArrayElement");

  3452 #ifndef USDT2

  3453   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3454 #else /* USDT2 */

  3455  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3456                                          env, array, index);

  3457 #endif /* USDT2 */

  3458   jobject ret = NULL;

  3459   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3460   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3461   if (a->is_within_bounds(index)) {

  3462     ret = JNIHandles::make_local(env, a->obj_at(index));

  3463     return ret;

  3464   } else {

  3465     char buf[jintAsStringSize];

  3466     sprintf(buf, "%d", index);

  3467     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3468   }

  3469 JNI_END

  3471 #ifndef USDT2

  3472 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3473 #else /* USDT2 */

  3474 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3475                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3476 #endif /* USDT2 */

  3478 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3479   JNIWrapper("SetObjectArrayElement");

  3480 #ifndef USDT2

  3481   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3482 #else /* USDT2 */

  3483  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3484                                          env, array, index, value);

  3485 #endif /* USDT2 */

  3486   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3488   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3489   oop v = JNIHandles::resolve(value);

  3490   if (a->is_within_bounds(index)) {

  3491     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3492       a->obj_at_put(index, v);

  3493     } else {

  3494       THROW(vmSymbols::java_lang_ArrayStoreException());

  3495     }

  3496   } else {

  3497     char buf[jintAsStringSize];

  3498     sprintf(buf, "%d", index);

  3499     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3500   }

  3501 JNI_END

  3504 #ifndef USDT2

  3505 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3506 \

  3507   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3508 \

  3509 JNI_ENTRY(Return, \

  3510           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3511   JNIWrapper("New" XSTR(Result) "Array"); \

  3512   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3513   Return ret = NULL;\

  3514   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3515 \

  3516   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3517   ret = (Return) JNIHandles::make_local(env, obj); \

  3518   return ret;\

  3519 JNI_END

  3521 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3522 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3523 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3524 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3525 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3526 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3527 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3528 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3530 #else /* USDT2 */

  3532 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3533                               ,EntryProbe,ReturnProbe)  \

  3534 \

  3535   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3536                       , ReturnProbe); \

  3537 \

  3538 JNI_ENTRY(Return, \

  3539           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3540   JNIWrapper("New" XSTR(Result) "Array"); \

  3541   EntryProbe; \

  3542   Return ret = NULL;\

  3543   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3544 \

  3545   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3546   ret = (Return) JNIHandles::make_local(env, obj); \

  3547   return ret;\

  3548 JNI_END

  3550 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3551                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3552                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3553 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3554                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3555                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3556 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3557                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3558                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3559 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3560                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3561                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3562 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3563                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3564                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3565 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3566                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3567                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3568 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3569                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3570                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3571 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3572                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3573                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3574 #endif /* USDT2 */

  3576 // Return an address which will fault if the caller writes to it.

  3578 static char* get_bad_address() {

  3579   static char* bad_address = NULL;

  3580   if (bad_address == NULL) {

  3581     size_t size = os::vm_allocation_granularity();

  3582     bad_address = os::reserve_memory(size);

  3583     if (bad_address != NULL) {

  3584       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3585                          /*is_committed*/false);

  3586       MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);

  3587     }

  3588   }

  3589   return bad_address;

  3590 }

  3593 #ifndef USDT2

  3594 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3595 \

  3596 JNI_QUICK_ENTRY(ElementType*, \

  3597           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3598   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3599   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3600   /* allocate an chunk of memory in c land */ \

  3601   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3602   ElementType* result; \

  3603   int len = a->length(); \

  3604   if (len == 0) { \

  3605     /* Empty array: legal but useless, can't return NULL. \

  3606      * Return a pointer to something useless. \

  3607      * Avoid asserts in typeArrayOop. */ \

  3608     result = (ElementType*)get_bad_address(); \

  3609   } else { \

  3610     /* JNI Specification states return NULL on OOM */                    \

  3611     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3612     if (result != NULL) {                                                \

  3613       /* copy the array to the c chunk */                                \

  3614       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3615       if (isCopy) {                                                      \

  3616         *isCopy = JNI_TRUE;                                              \

  3617       }                                                                  \

  3618     }                                                                    \

  3619   } \

  3620   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3621   return result; \

  3622 JNI_END

  3624 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3625 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3626 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3627 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3628 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3629 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3630 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3631 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3633 #else /* USDT2 */

  3635 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3636                                       , EntryProbe, ReturnProbe) \

  3637 \

  3638 JNI_QUICK_ENTRY(ElementType*, \

  3639           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3640   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3641   EntryProbe; \

  3642   /* allocate an chunk of memory in c land */ \

  3643   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3644   ElementType* result; \

  3645   int len = a->length(); \

  3646   if (len == 0) { \

  3647     /* Empty array: legal but useless, can't return NULL. \

  3648      * Return a pointer to something useless. \

  3649      * Avoid asserts in typeArrayOop. */ \

  3650     result = (ElementType*)get_bad_address(); \

  3651   } else { \

  3652     /* JNI Specification states return NULL on OOM */                    \

  3653     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3654     if (result != NULL) {                                                \

  3655       /* copy the array to the c chunk */                                \

  3656       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3657       if (isCopy) {                                                      \

  3658         *isCopy = JNI_TRUE;                                              \

  3659       }                                                                  \

  3660     }                                                                    \

  3661   } \

  3662   ReturnProbe; \

  3663   return result; \

  3664 JNI_END

  3666 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3667                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3668                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3669 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3670                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3671                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3672 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3673                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3674                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3675 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3676                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3677                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3678 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3679                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3680                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3681 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3682                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3683                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3684 // Float and double probes don't return value because dtrace doesn't currently support it

  3685 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3686                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3687                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3688 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3689                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3690                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3691 #endif /* USDT2 */

  3693 #ifndef USDT2

  3694 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3695 \

  3696 JNI_QUICK_ENTRY(void, \

  3697           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3698                                              ElementType *buf, jint mode)) \

  3699   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3700   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3701   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3702   int len = a->length(); \

  3703   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3704     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3705       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3706     } \

  3707     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3708       FreeHeap(buf); \

  3709     } \

  3710   } \

  3711   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3712 JNI_END

  3714 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3715 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3723 #else /* USDT2 */

  3725 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3726                                           , EntryProbe, ReturnProbe);\

  3727 \

  3728 JNI_QUICK_ENTRY(void, \

  3729           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3730                                              ElementType *buf, jint mode)) \

  3731   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3732   EntryProbe; \

  3733   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3734   int len = a->length(); \

  3735   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3736     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3737       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3738     } \

  3739     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3740       FreeHeap(buf); \

  3741     } \

  3742   } \

  3743   ReturnProbe; \

  3744 JNI_END

  3746 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3747                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3748                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3749 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3750                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3751                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3752 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3753                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3754                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3755 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3756                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3757                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3758 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3759                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3760                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3761 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3762                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3763                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3764 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3765                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3766                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3767 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3768                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3769                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3770 #endif /* USDT2 */

  3772 #ifndef USDT2

  3773 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3774   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3775 \

  3776 JNI_ENTRY(void, \

  3777 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3778              jsize len, ElementType *buf)) \

  3779   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3780   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3781   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3782   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3783   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3784     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3785   } else { \

  3786     if (len > 0) { \

  3787       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3788       memcpy((u_char*) buf, \

  3789              (u_char*) src->Tag##_at_addr(start), \

  3790              len << sc);                          \

  3791     } \

  3792   } \

  3793 JNI_END

  3795 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3796 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3797 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3798 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3799 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3800 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3801 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3802 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3804 #else /* USDT2 */

  3806 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3807                                     , EntryProbe, ReturnProbe); \

  3808   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3809                            , ReturnProbe); \

  3810 \

  3811 JNI_ENTRY(void, \

  3812 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3813              jsize len, ElementType *buf)) \

  3814   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3815   EntryProbe; \

  3816   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3817   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3818   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3819     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3820   } else { \

  3821     if (len > 0) { \

  3822       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3823       memcpy((u_char*) buf, \

  3824              (u_char*) src->Tag##_at_addr(start), \

  3825              len << sc);                          \

  3826     } \

  3827   } \

  3828 JNI_END

  3830 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3831                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3832                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3833 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3834                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3835                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3836 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3837                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3838                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3839 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3840                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3841                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3842 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3843                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3844                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3845 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3846                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3847                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3848 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3849                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3850                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3851 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3852                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3853                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3854 #endif /* USDT2 */

  3856 #ifndef USDT2

  3857 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3858   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3859 \

  3860 JNI_ENTRY(void, \

  3861 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3862              jsize len, const ElementType *buf)) \

  3863   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3864   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3865   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3866   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3867   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3868     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3869   } else { \

  3870     if (len > 0) { \

  3871       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3872       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3873              (u_char*) buf, \

  3874              len << sc);    \

  3875     } \

  3876   } \

  3877 JNI_END

  3879 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3880 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3881 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3882 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3883 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3884 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3885 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3886 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3888 #else /* USDT2 */

  3890 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3891                                     , EntryProbe, ReturnProbe); \

  3892   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3893                            ,ReturnProbe);           \

  3894 \

  3895 JNI_ENTRY(void, \

  3896 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3897              jsize len, const ElementType *buf)) \

  3898   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3899   EntryProbe; \

  3900   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3901   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3902   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3903     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3904   } else { \

  3905     if (len > 0) { \

  3906       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3907       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3908              (u_char*) buf, \

  3909              len << sc);    \

  3910     } \

  3911   } \

  3912 JNI_END

  3914 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3915                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3916                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3917 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3918                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3919                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3920 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3921                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3922                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3923 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3924                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3925                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3926 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3927                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3928                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3929 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3930                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3931                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3932 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3933                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3934                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3935 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3936                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3937                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3938 #endif /* USDT2 */

  3941 //

  3942 // Interception of natives

  3943 //

  3945 // The RegisterNatives call being attempted tried to register with a method that

  3946 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3947 // to see if the native method is now wrapped with the prefixes.  See the

  3948 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3949 static Method* find_prefixed_native(KlassHandle k,

  3950                                       Symbol* name, Symbol* signature, TRAPS) {

  3951 #if INCLUDE_JVMTI

  3952   ResourceMark rm(THREAD);

  3953   Method* method;

  3954   int name_len = name->utf8_length();

  3955   char* name_str = name->as_utf8();

  3956   int prefix_count;

  3957   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3958   for (int i = 0; i < prefix_count; i++) {

  3959     char* prefix = prefixes[i];

  3960     int prefix_len = (int)strlen(prefix);

  3962     // try adding this prefix to the method name and see if it matches another method name

  3963     int trial_len = name_len + prefix_len;

  3964     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3965     strcpy(trial_name_str, prefix);

  3966     strcat(trial_name_str, name_str);

  3967     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3968     if (trial_name == NULL) {

  3969       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3970     }

  3971     method = k()->lookup_method(trial_name, signature);

  3972     if (method == NULL) {

  3973       continue; // signature doesn't match, try the next prefix

  3974     }

  3975     if (method->is_native()) {

  3976       method->set_is_prefixed_native();

  3977       return method; // wahoo, we found a prefixed version of the method, return it

  3978     }

  3979     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3980     name_len = trial_len;

  3981     name_str = trial_name_str;

  3982   }

  3983 #endif // INCLUDE_JVMTI

  3984   return NULL; // not found

  3985 }

  3987 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3988   Method* method = k()->lookup_method(name, signature);

  3989   if (method == NULL) {

  3990     ResourceMark rm;

  3991     stringStream st;

  3992     st.print("Method %s name or signature does not match",

  3993              Method::name_and_sig_as_C_string(k(), name, signature));

  3994     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3995   }

  3996   if (!method->is_native()) {

  3997     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  3998     method = find_prefixed_native(k, name, signature, THREAD);

  3999     if (method == NULL) {

  4000       ResourceMark rm;

  4001       stringStream st;

  4002       st.print("Method %s is not declared as native",

  4003                Method::name_and_sig_as_C_string(k(), name, signature));

  4004       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4005     }

  4006   }

  4008   if (entry != NULL) {

  4009     method->set_native_function(entry,

  4010       Method::native_bind_event_is_interesting);

  4011   } else {

  4012     method->clear_native_function();

  4013   }

  4014   if (PrintJNIResolving) {

  4015     ResourceMark rm(THREAD);

  4016     tty->print_cr("[Registering JNI native method %s.%s]",

  4017       method->method_holder()->external_name(),

  4018       method->name()->as_C_string());

  4019   }

  4020   return true;

  4021 }

  4023 #ifndef USDT2

  4024 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4025 #else /* USDT2 */

  4026 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4027                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4028 #endif /* USDT2 */

  4030 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4031                                     const JNINativeMethod *methods,

  4032                                     jint nMethods))

  4033   JNIWrapper("RegisterNatives");

  4034 #ifndef USDT2

  4035   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4036 #else /* USDT2 */

  4037   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4038                                     env, clazz, (void *) methods, nMethods);

  4039 #endif /* USDT2 */

  4040   jint ret = 0;

  4041   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4043   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4045   for (int index = 0; index < nMethods; index++) {

  4046     const char* meth_name = methods[index].name;

  4047     const char* meth_sig = methods[index].signature;

  4048     int meth_name_len = (int)strlen(meth_name);

  4050     // The class should have been loaded (we have an instance of the class

  4051     // passed in) so the method and signature should already be in the symbol

  4052     // table.  If they're not there, the method doesn't exist.

  4053     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4054     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4056     if (name == NULL || signature == NULL) {

  4057       ResourceMark rm;

  4058       stringStream st;

  4059       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4060       // Must return negative value on failure

  4061       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4062     }

  4064     bool res = register_native(h_k, name, signature,

  4065                                (address) methods[index].fnPtr, THREAD);

  4066     if (!res) {

  4067       ret = -1;

  4068       break;

  4069     }

  4070   }

  4071   return ret;

  4072 JNI_END

  4075 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4076   JNIWrapper("UnregisterNatives");

  4077 #ifndef USDT2

  4078   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4079 #else /* USDT2 */

  4080  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4081                                      env, clazz);

  4082 #endif /* USDT2 */

  4083   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4084   //%note jni_2

  4085   if (k->oop_is_instance()) {

  4086     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4087       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4088       if (m->is_native()) {

  4089         m->clear_native_function();

  4090         m->set_signature_handler(NULL);

  4091       }

  4092     }

  4093   }

  4094 #ifndef USDT2

  4095   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4096 #else /* USDT2 */

  4097  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4098                                       0);

  4099 #endif /* USDT2 */

  4100   return 0;

  4101 JNI_END

  4103 //

  4104 // Monitor functions

  4105 //

  4107 #ifndef USDT2

  4108 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4109 #else /* USDT2 */

  4110 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4111                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4112 #endif /* USDT2 */

  4114 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4115 #ifndef USDT2

  4116   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4117 #else /* USDT2 */

  4118  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4119                                 env, jobj);

  4120 #endif /* USDT2 */

  4121   jint ret = JNI_ERR;

  4122   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4124   // If the object is null, we can't do anything with it

  4125   if (jobj == NULL) {

  4126     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4127   }

  4129   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4130   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4131   ret = JNI_OK;

  4132   return ret;

  4133 JNI_END

  4135 #ifndef USDT2

  4136 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4137 #else /* USDT2 */

  4138 DT_RETURN_MARK_DECL(MonitorExit, jint

  4139                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4140 #endif /* USDT2 */

  4142 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4143 #ifndef USDT2

  4144   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4145 #else /* USDT2 */

  4146  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4147                                env, jobj);

  4148 #endif /* USDT2 */

  4149   jint ret = JNI_ERR;

  4150   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4152   // Don't do anything with a null object

  4153   if (jobj == NULL) {

  4154     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4155   }

  4157   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4158   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4160   ret = JNI_OK;

  4161   return ret;

  4162 JNI_END

  4164 //

  4165 // Extensions

  4166 //

  4168 #ifndef USDT2

  4169 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4170 #else /* USDT2 */

  4171 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4172                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4173 #endif /* USDT2 */

  4175 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4176   JNIWrapper("GetStringRegion");

  4177 #ifndef USDT2

  4178   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4179 #else /* USDT2 */

  4180  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4181                                    env, string, start, len, buf);

  4182 #endif /* USDT2 */

  4183   DT_VOID_RETURN_MARK(GetStringRegion);

  4184   oop s = JNIHandles::resolve_non_null(string);

  4185   int s_len = java_lang_String::length(s);

  4186   if (start < 0 || len < 0 || start + len > s_len) {

  4187     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4188   } else {

  4189     if (len > 0) {

  4190       int s_offset = java_lang_String::offset(s);

  4191       typeArrayOop s_value = java_lang_String::value(s);

  4192       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4193     }

  4194   }

  4195 JNI_END

  4197 #ifndef USDT2

  4198 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4199 #else /* USDT2 */

  4200 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4201                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4202 #endif /* USDT2 */

  4204 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4205   JNIWrapper("GetStringUTFRegion");

  4206 #ifndef USDT2

  4207   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4208 #else /* USDT2 */

  4209  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4210                                       env, string, start, len, buf);

  4211 #endif /* USDT2 */

  4212   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4213   oop s = JNIHandles::resolve_non_null(string);

  4214   int s_len = java_lang_String::length(s);

  4215   if (start < 0 || len < 0 || start + len > s_len) {

  4216     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4217   } else {

  4218     //%note jni_7

  4219     if (len > 0) {

  4220       ResourceMark rm(THREAD);

  4221       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4222       int utf_len = (int)strlen(utf_region);

  4223       memcpy(buf, utf_region, utf_len);

  4224       buf[utf_len] = 0;

  4225     } else {

  4226       // JDK null-terminates the buffer even in len is zero

  4227       if (buf != NULL) {

  4228         buf[0] = 0;

  4229       }

  4230     }

  4231   }

  4232 JNI_END

  4235 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4236   JNIWrapper("GetPrimitiveArrayCritical");

  4237 #ifndef USDT2

  4238   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4239 #else /* USDT2 */

  4240  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4241                                              env, array, (uintptr_t *) isCopy);

  4242 #endif /* USDT2 */

  4243   GC_locker::lock_critical(thread);

  4244   if (isCopy != NULL) {

  4245     *isCopy = JNI_FALSE;

  4246   }

  4247   oop a = JNIHandles::resolve_non_null(array);

  4248   assert(a->is_array(), "just checking");

  4249   BasicType type;

  4250   if (a->is_objArray()) {

  4251     type = T_OBJECT;

  4252   } else {

  4253     type = TypeArrayKlass::cast(a->klass())->element_type();

  4254   }

  4255   void* ret = arrayOop(a)->base(type);

  4256 #ifndef USDT2

  4257   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4258 #else /* USDT2 */

  4259  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4260                                               ret);

  4261 #endif /* USDT2 */

  4262   return ret;

  4263 JNI_END

  4266 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4267   JNIWrapper("ReleasePrimitiveArrayCritical");

  4268 #ifndef USDT2

  4269   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4270 #else /* USDT2 */

  4271   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4272                                                   env, array, carray, mode);

  4273 #endif /* USDT2 */

  4274   // The array, carray and mode arguments are ignored

  4275   GC_locker::unlock_critical(thread);

  4276 #ifndef USDT2

  4277   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4278 #else /* USDT2 */

  4279 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4280 );

  4281 #endif /* USDT2 */

  4282 JNI_END

  4285 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4286   JNIWrapper("GetStringCritical");

  4287 #ifndef USDT2

  4288   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4289 #else /* USDT2 */

  4290   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4291                                       env, string, (uintptr_t *) isCopy);

  4292 #endif /* USDT2 */

  4293   GC_locker::lock_critical(thread);

  4294   if (isCopy != NULL) {

  4295     *isCopy = JNI_FALSE;

  4296   }

  4297   oop s = JNIHandles::resolve_non_null(string);

  4298   int s_len = java_lang_String::length(s);

  4299   typeArrayOop s_value = java_lang_String::value(s);

  4300   int s_offset = java_lang_String::offset(s);

  4301   const jchar* ret;

  4302   if (s_len > 0) {

  4303     ret = s_value->char_at_addr(s_offset);

  4304   } else {

  4305     ret = (jchar*) s_value->base(T_CHAR);

  4306   }

  4307 #ifndef USDT2

  4308   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4309 #else /* USDT2 */

  4310  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4311                                       (uint16_t *) ret);

  4312 #endif /* USDT2 */

  4313   return ret;

  4314 JNI_END

  4317 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4318   JNIWrapper("ReleaseStringCritical");

  4319 #ifndef USDT2

  4320   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4321 #else /* USDT2 */

  4322   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4323                                           env, str, (uint16_t *) chars);

  4324 #endif /* USDT2 */

  4325   // The str and chars arguments are ignored

  4326   GC_locker::unlock_critical(thread);

  4327 #ifndef USDT2

  4328   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4329 #else /* USDT2 */

  4330 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4331 );

  4332 #endif /* USDT2 */

  4333 JNI_END

  4336 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4337   JNIWrapper("jni_NewWeakGlobalRef");

  4338 #ifndef USDT2

  4339   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4340 #else /* USDT2 */

  4341  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4342                                     env, ref);

  4343 #endif /* USDT2 */

  4344   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4345   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4346 #ifndef USDT2

  4347   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4348 #else /* USDT2 */

  4349  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4350                                      ret);

  4351 #endif /* USDT2 */

  4352   return ret;

  4353 JNI_END

  4355 // Must be JNI_ENTRY (with HandleMark)

  4356 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4357   JNIWrapper("jni_DeleteWeakGlobalRef");

  4358 #ifndef USDT2

  4359   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4360 #else /* USDT2 */

  4361   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4362                                         env, ref);

  4363 #endif /* USDT2 */

  4364   JNIHandles::destroy_weak_global(ref);

  4365 #ifndef USDT2

  4366   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4367 #else /* USDT2 */

  4368   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4369                                          );

  4370 #endif /* USDT2 */

  4371 JNI_END

  4374 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4375   JNIWrapper("jni_ExceptionCheck");

  4376 #ifndef USDT2

  4377   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4378 #else /* USDT2 */

  4379  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4380                                   env);

  4381 #endif /* USDT2 */

  4382   jni_check_async_exceptions(thread);

  4383   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4384 #ifndef USDT2

  4385   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4386 #else /* USDT2 */

  4387  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4388                                    ret);

  4389 #endif /* USDT2 */

  4390   return ret;

  4391 JNI_END

  4394 // Initialization state for three routines below relating to

  4395 // java.nio.DirectBuffers

  4396 static          jint directBufferSupportInitializeStarted = 0;

  4397 static volatile jint directBufferSupportInitializeEnded   = 0;

  4398 static volatile jint directBufferSupportInitializeFailed  = 0;

  4399 static jclass    bufferClass                 = NULL;

  4400 static jclass    directBufferClass           = NULL;

  4401 static jclass    directByteBufferClass       = NULL;

  4402 static jmethodID directByteBufferConstructor = NULL;

  4403 static jfieldID  directBufferAddressField    = NULL;

  4404 static jfieldID  bufferCapacityField         = NULL;

  4406 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4407   Handle loader;            // null (bootstrap) loader

  4408   Handle protection_domain; // null protection domain

  4410   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4411   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4413   if (TraceClassResolution && result != NULL) {

  4414     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4415   }

  4416   return result;

  4417 }

  4419 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4420 // circumvent any security checks that would be done by jni_FindClass.

  4421 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4422 {

  4423   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4424   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4425   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4426   return true;

  4427 }

  4428 JNI_END

  4431 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4432   if (directBufferSupportInitializeFailed) {

  4433     return false;

  4434   }

  4436   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4437     if (!lookupDirectBufferClasses(env)) {

  4438       directBufferSupportInitializeFailed = 1;

  4439       return false;

  4440     }

  4442     // Make global references for these

  4443     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4444     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4445     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4447     // Get needed field and method IDs

  4448     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4449     if (env->ExceptionCheck()) {

  4450       env->ExceptionClear();

  4451       directBufferSupportInitializeFailed = 1;

  4452       return false;

  4453     }

  4454     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4455     if (env->ExceptionCheck()) {

  4456       env->ExceptionClear();

  4457       directBufferSupportInitializeFailed = 1;

  4458       return false;

  4459     }

  4460     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4461     if (env->ExceptionCheck()) {

  4462       env->ExceptionClear();

  4463       directBufferSupportInitializeFailed = 1;

  4464       return false;

  4465     }

  4467     if ((directByteBufferConstructor == NULL) ||

  4468         (directBufferAddressField    == NULL) ||

  4469         (bufferCapacityField         == NULL)) {

  4470       directBufferSupportInitializeFailed = 1;

  4471       return false;

  4472     }

  4474     directBufferSupportInitializeEnded = 1;

  4475   } else {

  4476     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4477       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4478       // os::sleep which requires the VM state transition. On other platforms, it

  4479       // is not necessary. The following call to change the VM state is purposely

  4480       // put inside the loop to avoid potential deadlock when multiple threads

  4481       // try to call this method. See 6791815 for more details.

  4482       ThreadInVMfromNative tivn(thread);

  4483       os::yield_all();

  4484     }

  4485   }

  4487   return !directBufferSupportInitializeFailed;

  4488 }

  4490 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4491 {

  4492   // thread_from_jni_environment() will block if VM is gone.

  4493   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4495   JNIWrapper("jni_NewDirectByteBuffer");

  4496 #ifndef USDT2

  4497   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4498 #else /* USDT2 */

  4499  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4500                                        env, address, capacity);

  4501 #endif /* USDT2 */

  4503   if (!directBufferSupportInitializeEnded) {

  4504     if (!initializeDirectBufferSupport(env, thread)) {

  4505 #ifndef USDT2

  4506       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4507 #else /* USDT2 */

  4508       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4509                                              NULL);

  4510 #endif /* USDT2 */

  4511       return NULL;

  4512     }

  4513   }

  4515   // Being paranoid about accidental sign extension on address

  4516   jlong addr = (jlong) ((uintptr_t) address);

  4517   // NOTE that package-private DirectByteBuffer constructor currently

  4518   // takes int capacity

  4519   jint  cap  = (jint)  capacity;

  4520   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4521 #ifndef USDT2

  4522   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4523 #else /* USDT2 */

  4524   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4525                                          ret);

  4526 #endif /* USDT2 */

  4527   return ret;

  4528 }

  4530 #ifndef USDT2

  4531 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4532 #else /* USDT2 */

  4533 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4534                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4535 #endif /* USDT2 */

  4537 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4538 {

  4539   // thread_from_jni_environment() will block if VM is gone.

  4540   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4542   JNIWrapper("jni_GetDirectBufferAddress");

  4543 #ifndef USDT2

  4544   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4545 #else /* USDT2 */

  4546   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4547                                            env, buf);

  4548 #endif /* USDT2 */

  4549   void* ret = NULL;

  4550   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4552   if (!directBufferSupportInitializeEnded) {

  4553     if (!initializeDirectBufferSupport(env, thread)) {

  4554       return 0;

  4555     }

  4556   }

  4558   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4559     return 0;

  4560   }

  4562   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4563   return ret;

  4564 }

  4566 #ifndef USDT2

  4567 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4568 #else /* USDT2 */

  4569 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4570                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4571 #endif /* USDT2 */

  4573 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4574 {

  4575   // thread_from_jni_environment() will block if VM is gone.

  4576   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4578   JNIWrapper("jni_GetDirectBufferCapacity");

  4579 #ifndef USDT2

  4580   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4581 #else /* USDT2 */

  4582   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4583                                             env, buf);

  4584 #endif /* USDT2 */

  4585   jlong ret = -1;

  4586   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4588   if (!directBufferSupportInitializeEnded) {

  4589     if (!initializeDirectBufferSupport(env, thread)) {

  4590       ret = 0;

  4591       return ret;

  4592     }

  4593   }

  4595   if (buf == NULL) {

  4596     return -1;

  4597   }

  4599   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4600     return -1;

  4601   }

  4603   // NOTE that capacity is currently an int in the implementation

  4604   ret = env->GetIntField(buf, bufferCapacityField);

  4605   return ret;

  4606 }

  4609 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4610   JNIWrapper("GetVersion");

  4611 #ifndef USDT2

  4612   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4613 #else /* USDT2 */

  4614   HOTSPOT_JNI_GETVERSION_ENTRY(

  4615                                env);

  4616 #endif /* USDT2 */

  4617 #ifndef USDT2

  4618   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4619 #else /* USDT2 */

  4620   HOTSPOT_JNI_GETVERSION_RETURN(

  4621                                 CurrentVersion);

  4622 #endif /* USDT2 */

  4623   return CurrentVersion;

  4624 JNI_END

  4626 extern struct JavaVM_ main_vm;

  4628 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4629   JNIWrapper("jni_GetJavaVM");

  4630 #ifndef USDT2

  4631   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4632 #else /* USDT2 */

  4633   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4634                               env, (void **) vm);

  4635 #endif /* USDT2 */

  4636   *vm  = (JavaVM *)(&main_vm);

  4637 #ifndef USDT2

  4638   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4639 #else /* USDT2 */

  4640   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4641                                JNI_OK);

  4642 #endif /* USDT2 */

  4643   return JNI_OK;

  4644 JNI_END

  4646 // Structure containing all jni functions

  4647 struct JNINativeInterface_ jni_NativeInterface = {

  4648     NULL,

  4649     NULL,

  4650     NULL,

  4652     NULL,

  4654     jni_GetVersion,

  4656     jni_DefineClass,

  4657     jni_FindClass,

  4659     jni_FromReflectedMethod,

  4660     jni_FromReflectedField,

  4662     jni_ToReflectedMethod,

  4664     jni_GetSuperclass,

  4665     jni_IsAssignableFrom,

  4667     jni_ToReflectedField,

  4669     jni_Throw,

  4670     jni_ThrowNew,

  4671     jni_ExceptionOccurred,

  4672     jni_ExceptionDescribe,

  4673     jni_ExceptionClear,

  4674     jni_FatalError,

  4676     jni_PushLocalFrame,

  4677     jni_PopLocalFrame,

  4679     jni_NewGlobalRef,

  4680     jni_DeleteGlobalRef,

  4681     jni_DeleteLocalRef,

  4682     jni_IsSameObject,

  4684     jni_NewLocalRef,

  4685     jni_EnsureLocalCapacity,

  4687     jni_AllocObject,

  4688     jni_NewObject,

  4689     jni_NewObjectV,

  4690     jni_NewObjectA,

  4692     jni_GetObjectClass,

  4693     jni_IsInstanceOf,

  4695     jni_GetMethodID,

  4697     jni_CallObjectMethod,

  4698     jni_CallObjectMethodV,

  4699     jni_CallObjectMethodA,

  4700     jni_CallBooleanMethod,

  4701     jni_CallBooleanMethodV,

  4702     jni_CallBooleanMethodA,

  4703     jni_CallByteMethod,

  4704     jni_CallByteMethodV,

  4705     jni_CallByteMethodA,

  4706     jni_CallCharMethod,

  4707     jni_CallCharMethodV,

  4708     jni_CallCharMethodA,

  4709     jni_CallShortMethod,

  4710     jni_CallShortMethodV,

  4711     jni_CallShortMethodA,

  4712     jni_CallIntMethod,

  4713     jni_CallIntMethodV,

  4714     jni_CallIntMethodA,

  4715     jni_CallLongMethod,

  4716     jni_CallLongMethodV,

  4717     jni_CallLongMethodA,

  4718     jni_CallFloatMethod,

  4719     jni_CallFloatMethodV,

  4720     jni_CallFloatMethodA,

  4721     jni_CallDoubleMethod,

  4722     jni_CallDoubleMethodV,

  4723     jni_CallDoubleMethodA,

  4724     jni_CallVoidMethod,

  4725     jni_CallVoidMethodV,

  4726     jni_CallVoidMethodA,

  4728     jni_CallNonvirtualObjectMethod,

  4729     jni_CallNonvirtualObjectMethodV,

  4730     jni_CallNonvirtualObjectMethodA,

  4731     jni_CallNonvirtualBooleanMethod,

  4732     jni_CallNonvirtualBooleanMethodV,

  4733     jni_CallNonvirtualBooleanMethodA,

  4734     jni_CallNonvirtualByteMethod,

  4735     jni_CallNonvirtualByteMethodV,

  4736     jni_CallNonvirtualByteMethodA,

  4737     jni_CallNonvirtualCharMethod,

  4738     jni_CallNonvirtualCharMethodV,

  4739     jni_CallNonvirtualCharMethodA,

  4740     jni_CallNonvirtualShortMethod,

  4741     jni_CallNonvirtualShortMethodV,

  4742     jni_CallNonvirtualShortMethodA,

  4743     jni_CallNonvirtualIntMethod,

  4744     jni_CallNonvirtualIntMethodV,

  4745     jni_CallNonvirtualIntMethodA,

  4746     jni_CallNonvirtualLongMethod,

  4747     jni_CallNonvirtualLongMethodV,

  4748     jni_CallNonvirtualLongMethodA,

  4749     jni_CallNonvirtualFloatMethod,

  4750     jni_CallNonvirtualFloatMethodV,

  4751     jni_CallNonvirtualFloatMethodA,

  4752     jni_CallNonvirtualDoubleMethod,

  4753     jni_CallNonvirtualDoubleMethodV,

  4754     jni_CallNonvirtualDoubleMethodA,

  4755     jni_CallNonvirtualVoidMethod,

  4756     jni_CallNonvirtualVoidMethodV,

  4757     jni_CallNonvirtualVoidMethodA,

  4759     jni_GetFieldID,

  4761     jni_GetObjectField,

  4762     jni_GetBooleanField,

  4763     jni_GetByteField,

  4764     jni_GetCharField,

  4765     jni_GetShortField,

  4766     jni_GetIntField,

  4767     jni_GetLongField,

  4768     jni_GetFloatField,

  4769     jni_GetDoubleField,

  4771     jni_SetObjectField,

  4772     jni_SetBooleanField,

  4773     jni_SetByteField,

  4774     jni_SetCharField,

  4775     jni_SetShortField,

  4776     jni_SetIntField,

  4777     jni_SetLongField,

  4778     jni_SetFloatField,

  4779     jni_SetDoubleField,

  4781     jni_GetStaticMethodID,

  4783     jni_CallStaticObjectMethod,

  4784     jni_CallStaticObjectMethodV,

  4785     jni_CallStaticObjectMethodA,

  4786     jni_CallStaticBooleanMethod,

  4787     jni_CallStaticBooleanMethodV,

  4788     jni_CallStaticBooleanMethodA,

  4789     jni_CallStaticByteMethod,

  4790     jni_CallStaticByteMethodV,

  4791     jni_CallStaticByteMethodA,

  4792     jni_CallStaticCharMethod,

  4793     jni_CallStaticCharMethodV,

  4794     jni_CallStaticCharMethodA,

  4795     jni_CallStaticShortMethod,

  4796     jni_CallStaticShortMethodV,

  4797     jni_CallStaticShortMethodA,

  4798     jni_CallStaticIntMethod,

  4799     jni_CallStaticIntMethodV,

  4800     jni_CallStaticIntMethodA,

  4801     jni_CallStaticLongMethod,

  4802     jni_CallStaticLongMethodV,

  4803     jni_CallStaticLongMethodA,

  4804     jni_CallStaticFloatMethod,

  4805     jni_CallStaticFloatMethodV,

  4806     jni_CallStaticFloatMethodA,

  4807     jni_CallStaticDoubleMethod,

  4808     jni_CallStaticDoubleMethodV,

  4809     jni_CallStaticDoubleMethodA,

  4810     jni_CallStaticVoidMethod,

  4811     jni_CallStaticVoidMethodV,

  4812     jni_CallStaticVoidMethodA,

  4814     jni_GetStaticFieldID,

  4816     jni_GetStaticObjectField,

  4817     jni_GetStaticBooleanField,

  4818     jni_GetStaticByteField,

  4819     jni_GetStaticCharField,

  4820     jni_GetStaticShortField,

  4821     jni_GetStaticIntField,

  4822     jni_GetStaticLongField,

  4823     jni_GetStaticFloatField,

  4824     jni_GetStaticDoubleField,

  4826     jni_SetStaticObjectField,

  4827     jni_SetStaticBooleanField,

  4828     jni_SetStaticByteField,

  4829     jni_SetStaticCharField,

  4830     jni_SetStaticShortField,

  4831     jni_SetStaticIntField,

  4832     jni_SetStaticLongField,

  4833     jni_SetStaticFloatField,

  4834     jni_SetStaticDoubleField,

  4836     jni_NewString,

  4837     jni_GetStringLength,

  4838     jni_GetStringChars,

  4839     jni_ReleaseStringChars,

  4841     jni_NewStringUTF,

  4842     jni_GetStringUTFLength,

  4843     jni_GetStringUTFChars,

  4844     jni_ReleaseStringUTFChars,

  4846     jni_GetArrayLength,

  4848     jni_NewObjectArray,

  4849     jni_GetObjectArrayElement,

  4850     jni_SetObjectArrayElement,

  4852     jni_NewBooleanArray,

  4853     jni_NewByteArray,

  4854     jni_NewCharArray,

  4855     jni_NewShortArray,

  4856     jni_NewIntArray,

  4857     jni_NewLongArray,

  4858     jni_NewFloatArray,

  4859     jni_NewDoubleArray,

  4861     jni_GetBooleanArrayElements,

  4862     jni_GetByteArrayElements,

  4863     jni_GetCharArrayElements,

  4864     jni_GetShortArrayElements,

  4865     jni_GetIntArrayElements,

  4866     jni_GetLongArrayElements,

  4867     jni_GetFloatArrayElements,

  4868     jni_GetDoubleArrayElements,

  4870     jni_ReleaseBooleanArrayElements,

  4871     jni_ReleaseByteArrayElements,

  4872     jni_ReleaseCharArrayElements,

  4873     jni_ReleaseShortArrayElements,

  4874     jni_ReleaseIntArrayElements,

  4875     jni_ReleaseLongArrayElements,

  4876     jni_ReleaseFloatArrayElements,

  4877     jni_ReleaseDoubleArrayElements,

  4879     jni_GetBooleanArrayRegion,

  4880     jni_GetByteArrayRegion,

  4881     jni_GetCharArrayRegion,

  4882     jni_GetShortArrayRegion,

  4883     jni_GetIntArrayRegion,

  4884     jni_GetLongArrayRegion,

  4885     jni_GetFloatArrayRegion,

  4886     jni_GetDoubleArrayRegion,

  4888     jni_SetBooleanArrayRegion,

  4889     jni_SetByteArrayRegion,

  4890     jni_SetCharArrayRegion,

  4891     jni_SetShortArrayRegion,

  4892     jni_SetIntArrayRegion,

  4893     jni_SetLongArrayRegion,

  4894     jni_SetFloatArrayRegion,

  4895     jni_SetDoubleArrayRegion,

  4897     jni_RegisterNatives,

  4898     jni_UnregisterNatives,

  4900     jni_MonitorEnter,

  4901     jni_MonitorExit,

  4903     jni_GetJavaVM,

  4905     jni_GetStringRegion,

  4906     jni_GetStringUTFRegion,

  4908     jni_GetPrimitiveArrayCritical,

  4909     jni_ReleasePrimitiveArrayCritical,

  4911     jni_GetStringCritical,

  4912     jni_ReleaseStringCritical,

  4914     jni_NewWeakGlobalRef,

  4915     jni_DeleteWeakGlobalRef,

  4917     jni_ExceptionCheck,

  4919     jni_NewDirectByteBuffer,

  4920     jni_GetDirectBufferAddress,

  4921     jni_GetDirectBufferCapacity,

  4923     // New 1_6 features

  4925     jni_GetObjectRefType

  4926 };

  4929 // For jvmti use to modify jni function table.

  4930 // Java threads in native contiues to run until it is transitioned

  4931 // to VM at safepoint. Before the transition or before it is blocked

  4932 // for safepoint it may access jni function table. VM could crash if

  4933 // any java thread access the jni function table in the middle of memcpy.

  4934 // To avoid this each function pointers are copied automically.

  4935 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4936   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4937   intptr_t *a = (intptr_t *) jni_functions();

  4938   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4939   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4940     Atomic::store_ptr(*b++, a++);

  4941   }

  4942 }

  4944 void quicken_jni_functions() {

  4945   // Replace Get<Primitive>Field with fast versions

  4946   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4947       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4948 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4949       // windows x86 currently needs SEH wrapper and the gain of the fast

  4950       // versions currently isn't certain for server vm on uniprocessor.

  4951       && os::is_MP()

  4952 #endif

  4953   ) {

  4954     address func;

  4955     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4956     if (func != (address)-1) {

  4957       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4958     }

  4959     func = JNI_FastGetField::generate_fast_get_byte_field();

  4960     if (func != (address)-1) {

  4961       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4962     }

  4963     func = JNI_FastGetField::generate_fast_get_char_field();

  4964     if (func != (address)-1) {

  4965       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4966     }

  4967     func = JNI_FastGetField::generate_fast_get_short_field();

  4968     if (func != (address)-1) {

  4969       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4970     }

  4971     func = JNI_FastGetField::generate_fast_get_int_field();

  4972     if (func != (address)-1) {

  4973       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4974     }

  4975     func = JNI_FastGetField::generate_fast_get_long_field();

  4976     if (func != (address)-1) {

  4977       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4978     }

  4979     func = JNI_FastGetField::generate_fast_get_float_field();

  4980     if (func != (address)-1) {

  4981       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4982     }

  4983     func = JNI_FastGetField::generate_fast_get_double_field();

  4984     if (func != (address)-1) {

  4985       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4986     }

  4987   }

  4988 }

  4990 // Returns the function structure

  4991 struct JNINativeInterface_* jni_functions() {

  4992 #if INCLUDE_JNI_CHECK

  4993   if (CheckJNICalls) return jni_functions_check();

  4994 #endif // INCLUDE_JNI_CHECK

  4995   return &jni_NativeInterface;

  4996 }

  4998 // Returns the function structure

  4999 struct JNINativeInterface_* jni_functions_nocheck() {

  5000   return &jni_NativeInterface;

  5001 }

  5004 // Invocation API

  5007 // Forward declaration

  5008 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  5010 // Global invocation API vars

  5011 volatile jint vm_created = 0;

  5012 // Indicate whether it is safe to recreate VM

  5013 volatile jint safe_to_recreate_vm = 1;

  5014 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5017 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5018 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5020 #ifndef USDT2

  5021 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5022 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5023 #else /* USDT2 */

  5024 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5025                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5026 #endif /* USDT2 */

  5028 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5029 #ifndef USDT2

  5030   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5031 #else /* USDT2 */

  5032   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5033                                              args_);

  5034 #endif /* USDT2 */

  5035   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5036   jint ret = JNI_ERR;

  5037   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5039   if (Threads::is_supported_jni_version(args->version)) {

  5040     ret = JNI_OK;

  5041   }

  5042   // 1.1 style no longer supported in hotspot.

  5043   // According the JNI spec, we should update args->version on return.

  5044   // We also use the structure to communicate with launcher about default

  5045   // stack size.

  5046   if (args->version == JNI_VERSION_1_1) {

  5047     args->version = JNI_VERSION_1_2;

  5048     // javaStackSize is int in arguments structure

  5049     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5050     args->javaStackSize = (jint)(ThreadStackSize * K);

  5051   }

  5052   return ret;

  5053 }

  5055 #ifndef PRODUCT

  5057 #include "gc_implementation/shared/gcTimer.hpp"

  5058 #include "gc_interface/collectedHeap.hpp"

  5059 #if INCLUDE_ALL_GCS

  5060 #include "gc_implementation/g1/heapRegionRemSet.hpp"

  5061 #endif

  5062 #include "memory/guardedMemory.hpp"

  5063 #include "utilities/quickSort.hpp"

  5064 #include "utilities/ostream.hpp"

  5065 #if INCLUDE_VM_STRUCTS

  5066 #include "runtime/vmStructs.hpp"

  5067 #endif

  5069 #define run_unit_test(unit_test_function_call)              \

  5070   tty->print_cr("Running test: " #unit_test_function_call); \

  5071   unit_test_function_call

  5073 // Forward declaration

  5074 void TestReservedSpace_test();

  5075 void TestReserveMemorySpecial_test();

  5076 void TestVirtualSpace_test();

  5077 void TestMetaspaceAux_test();

  5078 void TestMetachunk_test();

  5079 void TestVirtualSpaceNode_test();

  5080 void TestNewSize_test();

  5081 void TestKlass_test();

  5082 void Test_linked_list();

  5083 #if INCLUDE_ALL_GCS

  5084 void TestOldFreeSpaceCalculation_test();

  5085 void TestG1BiasedArray_test();

  5086 void TestBufferingOopClosure_test();

  5087 void TestCodeCacheRemSet_test();

  5088 void FreeRegionList_test();

  5089 #endif

  5091 void execute_internal_vm_tests() {

  5092   if (ExecuteInternalVMTests) {

  5093     tty->print_cr("Running internal VM tests");

  5094     run_unit_test(TestReservedSpace_test());

  5095     run_unit_test(TestReserveMemorySpecial_test());

  5096     run_unit_test(TestVirtualSpace_test());

  5097     run_unit_test(TestMetaspaceAux_test());

  5098     run_unit_test(TestMetachunk_test());

  5099     run_unit_test(TestVirtualSpaceNode_test());

  5100     run_unit_test(GlobalDefinitions::test_globals());

  5101     run_unit_test(GCTimerAllTest::all());

  5102     run_unit_test(arrayOopDesc::test_max_array_length());

  5103     run_unit_test(CollectedHeap::test_is_in());

  5104     run_unit_test(QuickSort::test_quick_sort());

  5105     run_unit_test(GuardedMemory::test_guarded_memory());

  5106     run_unit_test(AltHashing::test_alt_hash());

  5107     run_unit_test(test_loggc_filename());

  5108     run_unit_test(TestNewSize_test());

  5109     run_unit_test(TestKlass_test());

  5110     run_unit_test(Test_linked_list());

  5111 #if INCLUDE_VM_STRUCTS

  5112     run_unit_test(VMStructs::test());

  5113 #endif

  5114 #if INCLUDE_ALL_GCS

  5115     run_unit_test(TestOldFreeSpaceCalculation_test());

  5116     run_unit_test(TestG1BiasedArray_test());

  5117     run_unit_test(HeapRegionRemSet::test_prt());

  5118     run_unit_test(TestBufferingOopClosure_test());

  5119     run_unit_test(TestCodeCacheRemSet_test());

  5120     if (UseG1GC) {

  5121       run_unit_test(FreeRegionList_test());

  5122     }

  5123 #endif

  5124     tty->print_cr("All internal VM tests passed");

  5125   }

  5126 }

  5128 #undef run_unit_test

  5130 #endif

  5132 #ifndef USDT2

  5133 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5134 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5135 #else /* USDT2 */

  5136 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5137                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5138 #endif /* USDT2 */

  5140 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5141 #ifndef USDT2

  5142   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5143 #else /* USDT2 */

  5144   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5145                                  (void **) vm, penv, args);

  5146 #endif /* USDT2 */

  5148   jint result = JNI_ERR;

  5149   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5151   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5152   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5153   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5154   // on all architectures.  So we check it works before relying on it.

  5155 #if defined(ZERO) && defined(ASSERT)

  5156   {

  5157     jint a = 0xcafebabe;

  5158     jint b = Atomic::xchg(0xdeadbeef, &a);

  5159     void *c = &a;

  5160     void *d = Atomic::xchg_ptr(&b, &c);

  5161     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5162     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5163   }

  5164 #endif // ZERO && ASSERT

  5166   // At the moment it's only possible to have one Java VM,

  5167   // since some of the runtime state is in global variables.

  5169   // We cannot use our mutex locks here, since they only work on

  5170   // Threads. We do an atomic compare and exchange to ensure only

  5171   // one thread can call this method at a time

  5173   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5174   // the add/dec implementations are dependent on whether we are running

  5175   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5176   // function used to determine this will always return false. Atomic::xchg

  5177   // does not have this problem.

  5178   if (Atomic::xchg(1, &vm_created) == 1) {

  5179     return JNI_EEXIST;   // already created, or create attempt in progress

  5180   }

  5181   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5182     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5183   }

  5185   assert(vm_created == 1, "vm_created is true during the creation");

  5187   /**

  5188    * Certain errors during initialization are recoverable and do not

  5189    * prevent this method from being called again at a later time

  5190    * (perhaps with different arguments).  However, at a certain

  5191    * point during initialization if an error occurs we cannot allow

  5192    * this function to be called again (or it will crash).  In those

  5193    * situations, the 'canTryAgain' flag is set to false, which atomically

  5194    * sets safe_to_recreate_vm to 1, such that any new call to

  5195    * JNI_CreateJavaVM will immediately fail using the above logic.

  5196    */

  5197   bool can_try_again = true;

  5199   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5200   if (result == JNI_OK) {

  5201     JavaThread *thread = JavaThread::current();

  5202     /* thread is thread_in_vm here */

  5203     *vm = (JavaVM *)(&main_vm);

  5204     *(JNIEnv**)penv = thread->jni_environment();

  5206     // Tracks the time application was running before GC

  5207     RuntimeService::record_application_start();

  5209     // Notify JVMTI

  5210     if (JvmtiExport::should_post_thread_life()) {

  5211        JvmtiExport::post_thread_start(thread);

  5212     }

  5214     EventThreadStart event;

  5215     if (event.should_commit()) {

  5216       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5217       event.commit();

  5218     }

  5220 #ifndef PRODUCT

  5221   #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED

  5222     #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()

  5223   #endif

  5225     // Check if we should compile all classes on bootclasspath

  5226     if (CompileTheWorld) ClassLoader::compile_the_world();

  5227     if (ReplayCompiles) ciReplay::replay(thread);

  5229     // Some platforms (like Win*) need a wrapper around these test

  5230     // functions in order to properly handle error conditions.

  5231     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);

  5232     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);

  5233 #endif

  5235     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5236     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5237   } else {

  5238     if (can_try_again) {

  5239       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5240       safe_to_recreate_vm = 1;

  5241     }

  5243     // Creation failed. We must reset vm_created

  5244     *vm = 0;

  5245     *(JNIEnv**)penv = 0;

  5246     // reset vm_created last to avoid race condition. Use OrderAccess to

  5247     // control both compiler and architectural-based reordering.

  5248     OrderAccess::release_store(&vm_created, 0);

  5249   }

  5251   return result;

  5252 }

  5254 #ifndef USDT2

  5255 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5256   JavaVM**, jsize, jsize*);

  5257 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5258 #endif /* !USDT2 */

  5260 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5261   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5262   // JNIWrapper("GetCreatedJavaVMs");

  5263 #ifndef USDT2

  5264   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5265     vm_buf, bufLen, numVMs);

  5266 #else /* USDT2 */

  5267   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5268                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5269 #endif /* USDT2 */

  5270   if (vm_created) {

  5271     if (numVMs != NULL) *numVMs = 1;

  5272     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5273   } else {

  5274     if (numVMs != NULL) *numVMs = 0;

  5275   }

  5276 #ifndef USDT2

  5277   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5278 #else /* USDT2 */

  5279   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5280                                     JNI_OK);

  5281 #endif /* USDT2 */

  5282   return JNI_OK;

  5283 }

  5285 extern "C" {

  5287 #ifndef USDT2

  5288 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5289 #else /* USDT2 */

  5290 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5291                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5292 #endif /* USDT2 */

  5294 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5295 #ifndef USDT2

  5296   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5297 #else /* USDT2 */

  5298   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5299                                   vm);

  5300 #endif /* USDT2 */

  5301   jint res = JNI_ERR;

  5302   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5304   if (!vm_created) {

  5305     res = JNI_ERR;

  5306     return res;

  5307   }

  5309   JNIWrapper("DestroyJavaVM");

  5310   JNIEnv *env;

  5311   JavaVMAttachArgs destroyargs;

  5312   destroyargs.version = CurrentVersion;

  5313   destroyargs.name = (char *)"DestroyJavaVM";

  5314   destroyargs.group = NULL;

  5315   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5316   if (res != JNI_OK) {

  5317     return res;

  5318   }

  5320   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5321   JavaThread* thread = JavaThread::current();

  5322   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5323   if (Threads::destroy_vm()) {

  5324     // Should not change thread state, VM is gone

  5325     vm_created = false;

  5326     res = JNI_OK;

  5327     return res;

  5328   } else {

  5329     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5330     res = JNI_ERR;

  5331     return res;

  5332   }

  5333 }

  5336 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5337   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5339   // Check below commented out from JDK1.2fcs as well

  5340   /*

  5341   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5342     return JNI_EVERSION;

  5343   }

  5344   */

  5346   Thread* t = ThreadLocalStorage::get_thread_slow();

  5347   if (t != NULL) {

  5348     // If the thread has been attached this operation is a no-op

  5349     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5350     return JNI_OK;

  5351   }

  5353   // Create a thread and mark it as attaching so it will be skipped by the

  5354   // ThreadsListEnumerator - see CR 6404306

  5355   JavaThread* thread = new JavaThread(true);

  5357   // Set correct safepoint info. The thread is going to call into Java when

  5358   // initializing the Java level thread object. Hence, the correct state must

  5359   // be set in order for the Safepoint code to deal with it correctly.

  5360   thread->set_thread_state(_thread_in_vm);

  5361   // Must do this before initialize_thread_local_storage

  5362   thread->record_stack_base_and_size();

  5364   thread->initialize_thread_local_storage();

  5366   if (!os::create_attached_thread(thread)) {

  5367     delete thread;

  5368     return JNI_ERR;

  5369   }

  5370   // Enable stack overflow checks

  5371   thread->create_stack_guard_pages();

  5373   thread->initialize_tlab();

  5375   thread->cache_global_variables();

  5377   // Crucial that we do not have a safepoint check for this thread, since it has

  5378   // not been added to the Thread list yet.

  5379   { Threads_lock->lock_without_safepoint_check();

  5380     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5381     // avoid this thread trying to do a GC before it is added to the thread-list

  5382     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5383     Threads::add(thread, daemon);

  5384     Threads_lock->unlock();

  5385   }

  5386   // Create thread group and name info from attach arguments

  5387   oop group = NULL;

  5388   char* thread_name = NULL;

  5389   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5390     group = JNIHandles::resolve(args->group);

  5391     thread_name = args->name; // may be NULL

  5392   }

  5393   if (group == NULL) group = Universe::main_thread_group();

  5395   // Create Java level thread object and attach it to this thread

  5396   bool attach_failed = false;

  5397   {

  5398     EXCEPTION_MARK;

  5399     HandleMark hm(THREAD);

  5400     Handle thread_group(THREAD, group);

  5401     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5402     if (HAS_PENDING_EXCEPTION) {

  5403       CLEAR_PENDING_EXCEPTION;

  5404       // cleanup outside the handle mark.

  5405       attach_failed = true;

  5406     }

  5407   }

  5409   if (attach_failed) {

  5410     // Added missing cleanup

  5411     thread->cleanup_failed_attach_current_thread();

  5412     return JNI_ERR;

  5413   }

  5415   // mark the thread as no longer attaching

  5416   // this uses a fence to push the change through so we don't have

  5417   // to regrab the threads_lock

  5418   thread->set_done_attaching_via_jni();

  5420   // Set java thread status.

  5421   java_lang_Thread::set_thread_status(thread->threadObj(),

  5422               java_lang_Thread::RUNNABLE);

  5424   // Notify the debugger

  5425   if (JvmtiExport::should_post_thread_life()) {

  5426     JvmtiExport::post_thread_start(thread);

  5427   }

  5429   EventThreadStart event;

  5430   if (event.should_commit()) {

  5431     event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5432     event.commit();

  5433   }

  5435   *(JNIEnv**)penv = thread->jni_environment();

  5437   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5438   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5439   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5440   // needed.

  5442   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5444   // Perform any platform dependent FPU setup

  5445   os::setup_fpu();

  5447   return JNI_OK;

  5448 }

  5451 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5452 #ifndef USDT2

  5453   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5454 #else /* USDT2 */

  5455   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5456                                         vm, penv, _args);

  5457 #endif /* USDT2 */

  5458   if (!vm_created) {

  5459 #ifndef USDT2

  5460     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5461 #else /* USDT2 */

  5462   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5463                                          (uint32_t) JNI_ERR);

  5464 #endif /* USDT2 */

  5465     return JNI_ERR;

  5466   }

  5468   JNIWrapper("AttachCurrentThread");

  5469   jint ret = attach_current_thread(vm, penv, _args, false);

  5470 #ifndef USDT2

  5471   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5472 #else /* USDT2 */

  5473   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5474                                          ret);

  5475 #endif /* USDT2 */

  5476   return ret;

  5477 }

  5480 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5481 #ifndef USDT2

  5482   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5483 #else /* USDT2 */

  5484   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5485                                         vm);

  5486 #endif /* USDT2 */

  5487   VM_Exit::block_if_vm_exited();

  5489   JNIWrapper("DetachCurrentThread");

  5491   // If the thread has been deattacted the operations is a no-op

  5492   if (ThreadLocalStorage::thread() == NULL) {

  5493 #ifndef USDT2

  5494     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5495 #else /* USDT2 */

  5496   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5497                                          JNI_OK);

  5498 #endif /* USDT2 */

  5499     return JNI_OK;

  5500   }

  5502   JavaThread* thread = JavaThread::current();

  5503   if (thread->has_last_Java_frame()) {

  5504 #ifndef USDT2

  5505     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5506 #else /* USDT2 */

  5507   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5508                                          (uint32_t) JNI_ERR);

  5509 #endif /* USDT2 */

  5510     // Can't detach a thread that's running java, that can't work.

  5511     return JNI_ERR;

  5512   }

  5514   // Safepoint support. Have to do call-back to safepoint code, if in the

  5515   // middel of a safepoint operation

  5516   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5518   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5519   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5520   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5521   // of the guards is visible in jni_AttachCurrentThread above,

  5522   // the removal of the guards is buried below in JavaThread::exit()

  5523   // here. The abstraction should be more symmetrically either exposed

  5524   // or hidden (e.g. it could probably be hidden in the same

  5525   // (platform-dependent) methods where we do alternate stack

  5526   // maintenance work?)

  5527   thread->exit(false, JavaThread::jni_detach);

  5528   delete thread;

  5530 #ifndef USDT2

  5531   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5532 #else /* USDT2 */

  5533   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5534                                          JNI_OK);

  5535 #endif /* USDT2 */

  5536   return JNI_OK;

  5537 }

  5539 #ifndef USDT2

  5540 DT_RETURN_MARK_DECL(GetEnv, jint);

  5541 #else /* USDT2 */

  5542 DT_RETURN_MARK_DECL(GetEnv, jint

  5543                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5544 #endif /* USDT2 */

  5546 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5547 #ifndef USDT2

  5548   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5549 #else /* USDT2 */

  5550   HOTSPOT_JNI_GETENV_ENTRY(

  5551                            vm, penv, version);

  5552 #endif /* USDT2 */

  5553   jint ret = JNI_ERR;

  5554   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5556   if (!vm_created) {

  5557     *penv = NULL;

  5558     ret = JNI_EDETACHED;

  5559     return ret;

  5560   }

  5562   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5563     return ret;

  5564   }

  5566 #ifndef JVMPI_VERSION_1

  5567 // need these in order to be polite about older agents

  5568 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5569 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5570 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5571 #endif // !JVMPI_VERSION_1

  5573   Thread* thread = ThreadLocalStorage::thread();

  5574   if (thread != NULL && thread->is_Java_thread()) {

  5575     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5576       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5577       ret = JNI_OK;

  5578       return ret;

  5580     } else if (version == JVMPI_VERSION_1 ||

  5581                version == JVMPI_VERSION_1_1 ||

  5582                version == JVMPI_VERSION_1_2) {

  5583       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5584       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5585       ret = JNI_EVERSION;

  5586       return ret;

  5587     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5588       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5589       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5590       ret = JNI_EVERSION;

  5591       return ret;

  5592     } else {

  5593       *penv = NULL;

  5594       ret = JNI_EVERSION;

  5595       return ret;

  5596     }

  5597   } else {

  5598     *penv = NULL;

  5599     ret = JNI_EDETACHED;

  5600     return ret;

  5601   }

  5602 }

  5605 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5606 #ifndef USDT2

  5607   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5608 #else /* USDT2 */

  5609   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5610                                                 vm, penv, _args);

  5611 #endif /* USDT2 */

  5612   if (!vm_created) {

  5613 #ifndef USDT2

  5614     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5615 #else /* USDT2 */

  5616   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5617                                                  (uint32_t) JNI_ERR);

  5618 #endif /* USDT2 */

  5619     return JNI_ERR;

  5620   }

  5622   JNIWrapper("AttachCurrentThreadAsDaemon");

  5623   jint ret = attach_current_thread(vm, penv, _args, true);

  5624 #ifndef USDT2

  5625   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5626 #else /* USDT2 */

  5627   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5628                                                  ret);

  5629 #endif /* USDT2 */

  5630   return ret;

  5631 }

  5634 } // End extern "C"

  5636 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5637     NULL,

  5638     NULL,

  5639     NULL,

  5641     jni_DestroyJavaVM,

  5642     jni_AttachCurrentThread,

  5643     jni_DetachCurrentThread,

  5644     jni_GetEnv,

  5645     jni_AttachCurrentThreadAsDaemon

  5646 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@833b0f92429a

src/share/vm/prims/jni.cpp