jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@0d3ff4d36a31

8024346: ~CautiouslyPreserveExceptionMark - assert(!_thread->has_pending_exception()) failed: unexpected exception generated
Summary: Pending exceptions must be handled properly after a call to the JVMTI merge_cp_and_rewrite
Reviewed-by: coleenp, dholmes
Contributed-by: serguei.spitsyn@oracle.com

     1 /*

     2  * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.

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

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

     5  *

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

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

     8  * published by the Free Software Foundation.

     9  *

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

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

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

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

    14  * accompanied this code).

    15  *

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

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

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

    19  *

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

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

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "ci/ciReplay.hpp"

    28 #include "classfile/altHashing.hpp"

    29 #include "classfile/classLoader.hpp"

    30 #include "classfile/javaClasses.hpp"

    31 #include "classfile/symbolTable.hpp"

    32 #include "classfile/systemDictionary.hpp"

    33 #include "classfile/vmSymbols.hpp"

    34 #include "interpreter/linkResolver.hpp"

    35 #include "utilities/macros.hpp"

    36 #if INCLUDE_ALL_GCS

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

    38 #endif // INCLUDE_ALL_GCS

    39 #include "memory/allocation.hpp"

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

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

    42 #include "memory/oopFactory.hpp"

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

    44 #include "oops/instanceKlass.hpp"

    45 #include "oops/instanceOop.hpp"

    46 #include "oops/markOop.hpp"

    47 #include "oops/method.hpp"

    48 #include "oops/objArrayKlass.hpp"

    49 #include "oops/objArrayOop.hpp"

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

    51 #include "oops/symbol.hpp"

    52 #include "oops/typeArrayKlass.hpp"

    53 #include "oops/typeArrayOop.hpp"

    54 #include "prims/jni.h"

    55 #include "prims/jniCheck.hpp"

    56 #include "prims/jniExport.hpp"

    57 #include "prims/jniFastGetField.hpp"

    58 #include "prims/jvm.h"

    59 #include "prims/jvm_misc.hpp"

    60 #include "prims/jvmtiExport.hpp"

    61 #include "prims/jvmtiThreadState.hpp"

    62 #include "runtime/compilationPolicy.hpp"

    63 #include "runtime/fieldDescriptor.hpp"

    64 #include "runtime/fprofiler.hpp"

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

    66 #include "runtime/interfaceSupport.hpp"

    67 #include "runtime/java.hpp"

    68 #include "runtime/javaCalls.hpp"

    69 #include "runtime/jfieldIDWorkaround.hpp"

    70 #include "runtime/reflection.hpp"

    71 #include "runtime/sharedRuntime.hpp"

    72 #include "runtime/signature.hpp"

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

    74 #include "runtime/vm_operations.hpp"

    75 #include "services/runtimeService.hpp"

    76 #include "trace/tracing.hpp"

    77 #include "utilities/defaultStream.hpp"

    78 #include "utilities/dtrace.hpp"

    79 #include "utilities/events.hpp"

    80 #include "utilities/histogram.hpp"

    81 #ifdef TARGET_OS_FAMILY_linux

    82 # include "os_linux.inline.hpp"

    83 #endif

    84 #ifdef TARGET_OS_FAMILY_solaris

    85 # include "os_solaris.inline.hpp"

    86 #endif

    87 #ifdef TARGET_OS_FAMILY_windows

    88 # include "os_windows.inline.hpp"

    89 #endif

    90 #ifdef TARGET_OS_FAMILY_bsd

    91 # include "os_bsd.inline.hpp"

    92 #endif

    94 static jint CurrentVersion = JNI_VERSION_1_8;

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

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

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

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

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

   102 //

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

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

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

   106 // a reference to it).

   107 //

   108 // Example:

   109 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   111 //   int return_value = 0;

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

   113 //   foo(CHECK_0)

   114 //   return_value = 5;

   115 //   return return_value;

   116 // JNI_END

   117 #ifndef USDT2

   118 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   120   DTRACE_ONLY(                                                             \

   121     class DTraceReturnProbeMark_##name {                                   \

   122      public:                                                               \

   123       const type& _ret_ref;                                                \

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

   125       ~DTraceReturnProbeMark_##name() {                                    \

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

   127       }                                                                    \

   128     }                                                                      \

   129   )

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

   131 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   133   DTRACE_ONLY(                                                             \

   134     class DTraceReturnProbeMark_##name {                                   \

   135      public:                                                               \

   136       ~DTraceReturnProbeMark_##name() {                                    \

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

   138       }                                                                    \

   139     }                                                                      \

   140   )

   142 #else /* USDT2 */

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

   145   DTRACE_ONLY(                                                             \

   146     class DTraceReturnProbeMark_##name {                                   \

   147      public:                                                               \

   148       const type& _ret_ref;                                                \

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

   150       ~DTraceReturnProbeMark_##name() {                                    \

   151         probe;                                                             \

   152       }                                                                    \

   153     }                                                                      \

   154   )

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

   156 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   157   DTRACE_ONLY(                                                             \

   158     class DTraceReturnProbeMark_##name {                                   \

   159      public:                                                               \

   160       ~DTraceReturnProbeMark_##name() {                                    \

   161         probe;                                                             \

   162       }                                                                    \

   163     }                                                                      \

   164   )

   165 #endif /* USDT2 */

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

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

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

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

   171 #define DT_VOID_RETURN_MARK(name) \

   172   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   177 // different behavior for Float/Double

   178 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   179 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   180 #define FP_SELECT_Char(intcode, fpcode)    intcode

   181 #define FP_SELECT_Short(intcode, fpcode)   intcode

   182 #define FP_SELECT_Object(intcode, fpcode)  intcode

   183 #define FP_SELECT_Int(intcode, fpcode)     intcode

   184 #define FP_SELECT_Long(intcode, fpcode)    intcode

   185 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   186 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   188   FP_SELECT_##TypeName(intcode, fpcode)

   190 #define COMMA ,

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

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

   194 #ifndef USDT2

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

   196   FP_SELECT(TypeName, \

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

   198 #else /* USDT2 */

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

   200   FP_SELECT(TypeName, \

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

   202 #endif /* USDT2 */

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

   204   FP_SELECT(TypeName, \

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

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

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

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

   212     uintptr_t as_uint = (uintptr_t) id;

   213     intptr_t offset = raw_instance_offset(id);

   214     if (is_checked_jfieldID(id)) {

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

   216         return false;

   217       }

   218     }

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

   220   } else {

   221     JNIid* result = (JNIid*) id;

   222 #ifdef ASSERT

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

   224 #else

   225     return result != NULL;

   226 #endif

   227   }

   228 }

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

   232   if (offset <= small_offset_mask) {

   233     Klass* field_klass = k;

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

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

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

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

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

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

   240       super_klass = field_klass->super();

   241     }

   242     debug_only(No_Safepoint_Verifier nosafepoint;)

   243     uintptr_t klass_hash = field_klass->identity_hash();

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

   245   } else {

   246 #if 0

   247     #ifndef PRODUCT

   248     {

   249       ResourceMark rm;

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

   251     }

   252     #endif

   253 #endif

   254     return 0;

   255   }

   256 }

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

   259   uintptr_t as_uint = (uintptr_t) id;

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

   261   do {

   262     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   265       return true;

   266     k = k->super();

   267   } while (k != NULL);

   268   return false;

   269 }

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

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

   273   uintptr_t as_uint = (uintptr_t) id;

   274   intptr_t offset = raw_instance_offset(id);

   275   if (VerifyJNIFields) {

   276     if (is_checked_jfieldID(id)) {

   277       guarantee(klass_hash_ok(k, id),

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

   279     } else {

   280 #if 0

   281       #ifndef PRODUCT

   282       if (Verbose) {

   283   ResourceMark rm;

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

   285       }

   286       #endif

   287 #endif

   288     }

   289   }

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

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

   292 }

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

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

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

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

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

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

   300 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   303 // Wrapper to trace JNI functions

   305 #ifdef ASSERT

   306   Histogram* JNIHistogram;

   307   static volatile jint JNIHistogram_lock = 0;

   309   class JNITraceWrapper : public StackObj {

   310    public:

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

   312       if (TraceJNICalls) {

   313         va_list ap;

   314         va_start(ap, format);

   315         tty->print("JNI ");

   316         tty->vprint_cr(format, ap);

   317         va_end(ap);

   318       }

   319     }

   320   };

   322   class JNIHistogramElement : public HistogramElement {

   323     public:

   324      JNIHistogramElement(const char* name);

   325   };

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

   328     _name = elementName;

   329     uintx count = 0;

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

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

   333         count +=1;

   334         if ( (WarnOnStalledSpinLock > 0)

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

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

   337         }

   338       }

   339      }

   342     if(JNIHistogram == NULL)

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

   345     JNIHistogram->add_element(this);

   346     Atomic::dec(&JNIHistogram_lock);

   347   }

   349   #define JNICountWrapper(arg)                                     \

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

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

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

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

   354 #else

   355   #define JNIWrapper(arg)

   356 #endif

   359 // Implementation of JNI entries

   361 #ifndef USDT2

   362 DT_RETURN_MARK_DECL(DefineClass, jclass);

   363 #else /* USDT2 */

   364 DT_RETURN_MARK_DECL(DefineClass, jclass

   365                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   366 #endif /* USDT2 */

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

   369                                   const jbyte *buf, jsize bufLen))

   370   JNIWrapper("DefineClass");

   372 #ifndef USDT2

   373   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   375 #else /* USDT2 */

   376   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   378 #endif /* USDT2 */

   379   jclass cls = NULL;

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

   382   TempNewSymbol class_name = NULL;

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

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

   385   if (name != NULL) {

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

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

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

   389       // into the constant pool.

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

   391     }

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

   393   }

   394   ResourceMark rm(THREAD);

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

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

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

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

   400     // If not, increment the corresponding counter

   401     if (ObjectSynchronizer::

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

   403         ObjectSynchronizer::owner_self) {

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

   405     }

   406   }

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

   408                                                      Handle(), &st, true,

   409                                                      CHECK_NULL);

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

   412     trace_class_resolution(k);

   413   }

   415   cls = (jclass)JNIHandles::make_local(

   416     env, k->java_mirror());

   417   return cls;

   418 JNI_END

   422 static bool first_time_FindClass = true;

   424 #ifndef USDT2

   425 DT_RETURN_MARK_DECL(FindClass, jclass);

   426 #else /* USDT2 */

   427 DT_RETURN_MARK_DECL(FindClass, jclass

   428                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   429 #endif /* USDT2 */

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

   432   JNIWrapper("FindClass");

   433 #ifndef USDT2

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

   435 #else /* USDT2 */

   436   HOTSPOT_JNI_FINDCLASS_ENTRY(

   437                               env, (char *)name);

   438 #endif /* USDT2 */

   440   jclass result = NULL;

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

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

   444   bool first_time = first_time_FindClass;

   445   first_time_FindClass = false;

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

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

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

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

   451   }

   453   //%note jni_3

   454   Handle loader;

   455   Handle protection_domain;

   456   // Find calling class

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

   458   if (k.not_null()) {

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

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

   461     // in the correct class context.

   462     if (loader.is_null() &&

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

   464       JavaValue result(T_OBJECT);

   465       JavaCalls::call_static(&result, k,

   466                                       vmSymbols::getFromClass_name(),

   467                                       vmSymbols::void_class_signature(),

   468                                       thread);

   469       if (HAS_PENDING_EXCEPTION) {

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

   471         CLEAR_PENDING_EXCEPTION;

   472         THROW_HANDLE_0(ex);

   473       }

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

   475       loader = Handle(THREAD,

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

   477       protection_domain = Handle(THREAD,

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

   479     }

   480   } else {

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

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

   483   }

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

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

   487                                         protection_domain, true, thread);

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

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

   491   }

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

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

   495   // Controlled by flag DelayCompilationDuringStartup.

   496   if (first_time && !CompileTheWorld)

   497     CompilationPolicy::completed_vm_startup();

   499   return result;

   500 JNI_END

   502 #ifndef USDT2

   503 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   504 #else /* USDT2 */

   505 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   506                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   507 #endif /* USDT2 */

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

   510   JNIWrapper("FromReflectedMethod");

   511 #ifndef USDT2

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

   513 #else /* USDT2 */

   514   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   515                                         env, method);

   516 #endif /* USDT2 */

   517   jmethodID ret = NULL;

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

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

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

   522   oop mirror     = NULL;

   523   int slot       = 0;

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

   526     mirror = java_lang_reflect_Constructor::clazz(reflected);

   527     slot   = java_lang_reflect_Constructor::slot(reflected);

   528   } else {

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

   530     mirror = java_lang_reflect_Method::clazz(reflected);

   531     slot   = java_lang_reflect_Method::slot(reflected);

   532   }

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

   535   KlassHandle k1(THREAD, k);

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

   537   k1()->initialize(CHECK_NULL);

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

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

   540   return ret;

   541 JNI_END

   543 #ifndef USDT2

   544 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   545 #else /* USDT2 */

   546 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   547                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   548 #endif /* USDT2 */

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

   551   JNIWrapper("FromReflectedField");

   552 #ifndef USDT2

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

   554 #else /* USDT2 */

   555   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   556                                        env, field);

   557 #endif /* USDT2 */

   558   jfieldID ret = NULL;

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

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

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

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

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

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

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

   568   KlassHandle k1(THREAD, k);

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

   570   k1()->initialize(CHECK_NULL);

   572   // First check if this is a static field

   573   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   577     debug_only(id->set_is_static_field_id();)

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

   579     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   580     return ret;

   581   }

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

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

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

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

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

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

   589   return ret;

   590 JNI_END

   592 #ifndef USDT2

   593 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   594 #else /* USDT2 */

   595 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   596                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   597 #endif /* USDT2 */

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

   600   JNIWrapper("ToReflectedMethod");

   601 #ifndef USDT2

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

   603 #else /* USDT2 */

   604   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   606 #endif /* USDT2 */

   607   jobject ret = NULL;

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

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

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

   612   oop reflection_method;

   613   if (m->is_initializer()) {

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

   615   } else {

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

   617   }

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

   619   return ret;

   620 JNI_END

   622 #ifndef USDT2

   623 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   624 #else /* USDT2 */

   625 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   626                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   627 #endif /* USDT2 */

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

   630   JNIWrapper("GetSuperclass");

   631 #ifndef USDT2

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

   633 #else /* USDT2 */

   634   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   635                                   env, sub);

   636 #endif /* USDT2 */

   637   jclass obj = NULL;

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

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

   641   // primitive classes return NULL

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

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

   645   // arrays return Object

   646   // interfaces return NULL

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

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

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

   651   // return mirror for superclass

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

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

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

   655                                  ? SystemDictionary::Object_klass()

   656                                  : k->super() ) );

   657   assert(super == super2,

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

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

   660   return obj;

   661 JNI_END

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

   664   JNIWrapper("IsSubclassOf");

   665 #ifndef USDT2

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

   667 #else /* USDT2 */

   668   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   669                                      env, sub, super);

   670 #endif /* USDT2 */

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

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

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

   674       java_lang_Class::is_primitive(super_mirror)) {

   675     jboolean ret = (sub_mirror == super_mirror);

   676 #ifndef USDT2

   677     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   678 #else /* USDT2 */

   679     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   680                                         ret);

   681 #endif /* USDT2 */

   682     return ret;

   683   }

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

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

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

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

   688                    JNI_TRUE : JNI_FALSE;

   689 #ifndef USDT2

   690   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   691 #else /* USDT2 */

   692   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   693                                       ret);

   694 #endif /* USDT2 */

   695   return ret;

   696 JNI_END

   698 #ifndef USDT2

   699 DT_RETURN_MARK_DECL(Throw, jint);

   700 #else /* USDT2 */

   701 DT_RETURN_MARK_DECL(Throw, jint

   702                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   703 #endif /* USDT2 */

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

   706   JNIWrapper("Throw");

   707 #ifndef USDT2

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

   709 #else /* USDT2 */

   710   HOTSPOT_JNI_THROW_ENTRY(

   711  env, obj);

   712 #endif /* USDT2 */

   713   jint ret = JNI_OK;

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

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

   717   ShouldNotReachHere();

   718 JNI_END

   720 #ifndef USDT2

   721 DT_RETURN_MARK_DECL(ThrowNew, jint);

   722 #else /* USDT2 */

   723 DT_RETURN_MARK_DECL(ThrowNew, jint

   724                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   725 #endif /* USDT2 */

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

   728   JNIWrapper("ThrowNew");

   729 #ifndef USDT2

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

   731 #else /* USDT2 */

   732   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   734 #endif /* USDT2 */

   735   jint ret = JNI_OK;

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

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

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

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

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

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

   743   ShouldNotReachHere();

   744 JNI_END

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

   748 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   754 // state transition.

   756 static void jni_check_async_exceptions(JavaThread *thread) {

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

   758   thread->check_and_handle_async_exceptions();

   759 }

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

   762   JNIWrapper("ExceptionOccurred");

   763 #ifndef USDT2

   764   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   765 #else /* USDT2 */

   766   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   767                                       env);

   768 #endif /* USDT2 */

   769   jni_check_async_exceptions(thread);

   770   oop exception = thread->pending_exception();

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

   772 #ifndef USDT2

   773   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   774 #else /* USDT2 */

   775   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   776                                        ret);

   777 #endif /* USDT2 */

   778   return ret;

   779 JNI_END

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

   783   JNIWrapper("ExceptionDescribe");

   784 #ifndef USDT2

   785   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   786 #else /* USDT2 */

   787   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   788                                       env);

   789 #endif /* USDT2 */

   790   if (thread->has_pending_exception()) {

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

   792     thread->clear_pending_exception();

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

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

   795     } else {

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

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

   798         ResourceMark rm(THREAD);

   799         jio_fprintf(defaultStream::error_stream(),

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

   801       }

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

   803         JavaValue result(T_VOID);

   804         JavaCalls::call_virtual(&result,

   805                                 ex,

   806                                 KlassHandle(THREAD,

   807                                   SystemDictionary::Throwable_klass()),

   808                                 vmSymbols::printStackTrace_name(),

   809                                 vmSymbols::void_method_signature(),

   810                                 THREAD);

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

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

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

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

   815         // is expected.

   816         CLEAR_PENDING_EXCEPTION;

   817       } else {

   818         ResourceMark rm(THREAD);

   819         jio_fprintf(defaultStream::error_stream(),

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

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

   822       }

   823     }

   824   }

   825 #ifndef USDT2

   826   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   827 #else /* USDT2 */

   828   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   829                                        );

   830 #endif /* USDT2 */

   831 JNI_END

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

   835   JNIWrapper("ExceptionClear");

   836 #ifndef USDT2

   837   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   838 #else /* USDT2 */

   839   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   840                                    env);

   841 #endif /* USDT2 */

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

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

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

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

   847     state->set_exception_caught();

   848   }

   849   thread->clear_pending_exception();

   850 #ifndef USDT2

   851   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   852 #else /* USDT2 */

   853   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   854                                     );

   855 #endif /* USDT2 */

   856 JNI_END

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

   860   JNIWrapper("FatalError");

   861 #ifndef USDT2

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

   863 #else /* USDT2 */

   864   HOTSPOT_JNI_FATALERROR_ENTRY(

   865                                env, (char *) msg);

   866 #endif /* USDT2 */

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

   868   thread->print_stack();

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

   870 JNI_END

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

   874   JNIWrapper("PushLocalFrame");

   875 #ifndef USDT2

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

   877 #else /* USDT2 */

   878   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   879                                    env, capacity);

   880 #endif /* USDT2 */

   881   //%note jni_11

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

   883 #ifndef USDT2

   884     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   885 #else /* USDT2 */

   886     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   887                                       (uint32_t)JNI_ERR);

   888 #endif /* USDT2 */

   889     return JNI_ERR;

   890   }

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

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

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

   894   new_handles->set_pop_frame_link(old_handles);

   895   thread->set_active_handles(new_handles);

   896   jint ret = JNI_OK;

   897 #ifndef USDT2

   898   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   899 #else /* USDT2 */

   900   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   901                                     ret);

   902 #endif /* USDT2 */

   903   return ret;

   904 JNI_END

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

   908   JNIWrapper("PopLocalFrame");

   909 #ifndef USDT2

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

   911 #else /* USDT2 */

   912   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   913                                   env, result);

   914 #endif /* USDT2 */

   915   //%note jni_11

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

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

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

   919   if (new_handles != NULL) {

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

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

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

   923     // the release_block call will release the blocks.

   924     thread->set_active_handles(new_handles);

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

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

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

   928   }

   929 #ifndef USDT2

   930   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   931 #else /* USDT2 */

   932   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   933                                    result);

   934 #endif /* USDT2 */

   935   return result;

   936 JNI_END

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

   940   JNIWrapper("NewGlobalRef");

   941 #ifndef USDT2

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

   943 #else /* USDT2 */

   944   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   945                                  env, ref);

   946 #endif /* USDT2 */

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

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

   949 #ifndef USDT2

   950   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   951 #else /* USDT2 */

   952   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   953                                   ret);

   954 #endif /* USDT2 */

   955   return ret;

   956 JNI_END

   958 // Must be JNI_ENTRY (with HandleMark)

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

   960   JNIWrapper("DeleteGlobalRef");

   961 #ifndef USDT2

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

   963 #else /* USDT2 */

   964   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   965                                     env, ref);

   966 #endif /* USDT2 */

   967   JNIHandles::destroy_global(ref);

   968 #ifndef USDT2

   969   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   970 #else /* USDT2 */

   971   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   972                                      );

   973 #endif /* USDT2 */

   974 JNI_END

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

   977   JNIWrapper("DeleteLocalRef");

   978 #ifndef USDT2

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

   980 #else /* USDT2 */

   981   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   982                                    env, obj);

   983 #endif /* USDT2 */

   984   JNIHandles::destroy_local(obj);

   985 #ifndef USDT2

   986   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   987 #else /* USDT2 */

   988   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   989                                     );

   990 #endif /* USDT2 */

   991 JNI_END

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

   994   JNIWrapper("IsSameObject");

   995 #ifndef USDT2

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

   997 #else /* USDT2 */

   998   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

   999                                  env, r1, r2);

  1000 #endif /* USDT2 */

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

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

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

  1004 #ifndef USDT2

  1005   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1006 #else /* USDT2 */

  1007   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1008                                   ret);

  1009 #endif /* USDT2 */

  1010   return ret;

  1011 JNI_END

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

  1015   JNIWrapper("NewLocalRef");

  1016 #ifndef USDT2

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

  1018 #else /* USDT2 */

  1019   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1020                                 env, ref);

  1021 #endif /* USDT2 */

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

  1023 #ifndef USDT2

  1024   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1025 #else /* USDT2 */

  1026   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1027                                  ret);

  1028 #endif /* USDT2 */

  1029   return ret;

  1030 JNI_END

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

  1033   JNIWrapper("EnsureLocalCapacity");

  1034 #ifndef USDT2

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

  1036 #else /* USDT2 */

  1037   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1038                                         env, capacity);

  1039 #endif /* USDT2 */

  1040   jint ret;

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

  1042     ret = JNI_OK;

  1043   } else {

  1044     ret = JNI_ERR;

  1045   }

  1046 #ifndef USDT2

  1047   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1048 #else /* USDT2 */

  1049   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1050                                          ret);

  1051 #endif /* USDT2 */

  1052   return ret;

  1053 JNI_END

  1055 // Return the Handle Type

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

  1057   JNIWrapper("GetObjectRefType");

  1058 #ifndef USDT2

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

  1060 #else /* USDT2 */

  1061   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1062                                      env, obj);

  1063 #endif /* USDT2 */

  1064   jobjectRefType ret;

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

  1066       JNIHandles::is_frame_handle(thread, obj))

  1067     ret = JNILocalRefType;

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

  1069     ret = JNIGlobalRefType;

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

  1071     ret = JNIWeakGlobalRefType;

  1072   else

  1073     ret = JNIInvalidRefType;

  1074 #ifndef USDT2

  1075   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1076 #else /* USDT2 */

  1077   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1078                                       (void *) ret);

  1079 #endif /* USDT2 */

  1080   return ret;

  1081 JNI_END

  1084 class JNI_ArgumentPusher : public SignatureIterator {

  1085  protected:

  1086   JavaCallArguments*  _arguments;

  1088   virtual void get_bool   () = 0;

  1089   virtual void get_char   () = 0;

  1090   virtual void get_short  () = 0;

  1091   virtual void get_byte   () = 0;

  1092   virtual void get_int    () = 0;

  1093   virtual void get_long   () = 0;

  1094   virtual void get_float  () = 0;

  1095   virtual void get_double () = 0;

  1096   virtual void get_object () = 0;

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

  1099     this->_return_type = T_ILLEGAL;

  1100     _arguments = NULL;

  1101   }

  1103  public:

  1104   virtual void iterate( uint64_t fingerprint ) = 0;

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

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

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

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

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

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

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

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

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

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

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

  1118   inline void do_void()                     { }

  1120   JavaCallArguments* arguments()     { return _arguments; }

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

  1122 };

  1125 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1126  protected:

  1127   va_list _ap;

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

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

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

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

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

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

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

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

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

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

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

  1143   inline void set_ap(va_list rap) {

  1144 #ifdef va_copy

  1145     va_copy(_ap, rap);

  1146 #elif defined (__va_copy)

  1147     __va_copy(_ap, rap);

  1148 #else

  1149     _ap = rap;

  1150 #endif

  1151   }

  1153  public:

  1154   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1155        : JNI_ArgumentPusher(signature) {

  1156     set_ap(rap);

  1157   }

  1158   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

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

  1160     set_ap(rap);

  1161   }

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

  1164   void iterate( uint64_t fingerprint ) {

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

  1166     else {

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

  1168                                   result_feature_mask);

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

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

  1172       while ( 1 ) {

  1173         switch ( fingerprint & parameter_feature_mask ) {

  1174           case bool_parm:

  1175           case char_parm:

  1176           case short_parm:

  1177           case byte_parm:

  1178           case int_parm:

  1179             get_int();

  1180             break;

  1181           case obj_parm:

  1182             get_object();

  1183             break;

  1184           case long_parm:

  1185             get_long();

  1186             break;

  1187           case float_parm:

  1188             get_float();

  1189             break;

  1190           case double_parm:

  1191             get_double();

  1192             break;

  1193           case done_parm:

  1194             return;

  1195             break;

  1196           default:

  1197             ShouldNotReachHere();

  1198             break;

  1199         }

  1200         fingerprint >>= parameter_feature_size;

  1201       }

  1202     }

  1203   }

  1204 };

  1207 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1208  protected:

  1209   const jvalue *_ap;

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

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

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

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

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

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

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

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

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

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

  1224  public:

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

  1226        : JNI_ArgumentPusher(signature) {

  1227     set_ap(rap);

  1228   }

  1229   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

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

  1231     set_ap(rap);

  1232   }

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

  1235   void iterate( uint64_t fingerprint ) {

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

  1237     else {

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

  1239                                   result_feature_mask);

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

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

  1242       while ( 1 ) {

  1243         switch ( fingerprint & parameter_feature_mask ) {

  1244           case bool_parm:

  1245             get_bool();

  1246             break;

  1247           case char_parm:

  1248             get_char();

  1249             break;

  1250           case short_parm:

  1251             get_short();

  1252             break;

  1253           case byte_parm:

  1254             get_byte();

  1255             break;

  1256           case int_parm:

  1257             get_int();

  1258             break;

  1259           case obj_parm:

  1260             get_object();

  1261             break;

  1262           case long_parm:

  1263             get_long();

  1264             break;

  1265           case float_parm:

  1266             get_float();

  1267             break;

  1268           case double_parm:

  1269             get_double();

  1270             break;

  1271           case done_parm:

  1272             return;

  1273             break;

  1274           default:

  1275             ShouldNotReachHere();

  1276             break;

  1277         }

  1278         fingerprint >>= parameter_feature_size;

  1279       }

  1280     }

  1281   }

  1282 };

  1285 enum JNICallType {

  1286   JNI_STATIC,

  1287   JNI_VIRTUAL,

  1288   JNI_NONVIRTUAL

  1289 };

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

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

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

  1297   // the jni parser

  1298   ResourceMark rm(THREAD);

  1299   int number_of_parameters = method->size_of_parameters();

  1300   JavaCallArguments java_args(number_of_parameters);

  1301   args->set_java_argument_object(&java_args);

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

  1305   // Fill out JavaCallArguments object

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

  1307   // Initialize result type

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

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

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

  1313   // Convert result

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

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

  1316   }

  1317 }

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

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

  1322   if (recv == NULL) {

  1323     THROW(vmSymbols::java_lang_NullPointerException());

  1324   }

  1325   Handle h_recv(THREAD, recv);

  1327   int number_of_parameters;

  1328   Method* selected_method;

  1329   {

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

  1331     number_of_parameters = m->size_of_parameters();

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

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

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

  1335       debug_only(No_Safepoint_Verifier nosafepoint;)

  1336       if (call_type == JNI_VIRTUAL) {

  1337         // jni_GetMethodID makes sure class is linked and initialized

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

  1339         int vtbl_index = m->vtable_index();

  1340         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1341           Klass* k = h_recv->klass();

  1342           // k might be an arrayKlassOop but all vtables start at

  1343           // the same place. The cast is to avoid virtual call and assertion.

  1344           InstanceKlass *ik = (InstanceKlass*)k;

  1345           selected_method = ik->method_at_vtable(vtbl_index);

  1346         } else {

  1347           // final method

  1348           selected_method = m;

  1349         }

  1350       } else {

  1351         // JNI_NONVIRTUAL call

  1352         selected_method = m;

  1353       }

  1354     } else {

  1355       // interface call

  1356       KlassHandle h_holder(THREAD, holder);

  1358       int itbl_index = m->cached_itable_index();

  1359       if (itbl_index == -1) {

  1360         itbl_index = klassItable::compute_itable_index(m);

  1361         m->set_cached_itable_index(itbl_index);

  1362         // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again

  1363       }

  1364       Klass* k = h_recv->klass();

  1365       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1366     }

  1367   }

  1369   methodHandle method(THREAD, selected_method);

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

  1372   // the jni parser

  1373   ResourceMark rm(THREAD);

  1374   JavaCallArguments java_args(number_of_parameters);

  1375   args->set_java_argument_object(&java_args);

  1377   // handle arguments

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

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

  1381   // Fill out JavaCallArguments object

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

  1383   // Initialize result type

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

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

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

  1389   // Convert result

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

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

  1392   }

  1393 }

  1396 static instanceOop alloc_object(jclass clazz, TRAPS) {

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

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

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

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

  1401   return ih;

  1402 }

  1404 #ifndef USDT2

  1405 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1406 #else /* USDT2 */

  1407 DT_RETURN_MARK_DECL(AllocObject, jobject

  1408                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1409 #endif /* USDT2 */

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

  1412   JNIWrapper("AllocObject");

  1414 #ifndef USDT2

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

  1416 #else /* USDT2 */

  1417   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1418                                 env, clazz);

  1419 #endif /* USDT2 */

  1420   jobject ret = NULL;

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

  1423   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1425   return ret;

  1426 JNI_END

  1428 #ifndef USDT2

  1429 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1430 #else /* USDT2 */

  1431 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1432                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1433 #endif /* USDT2 */

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

  1436   JNIWrapper("NewObjectA");

  1437 #ifndef USDT2

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

  1439 #else /* USDT2 */

  1440   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1441                                env, clazz, (uintptr_t) methodID);

  1442 #endif /* USDT2 */

  1443   jobject obj = NULL;

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

  1446   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1448   JavaValue jvalue(T_VOID);

  1449   JNI_ArgumentPusherArray ap(methodID, args);

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

  1451   return obj;

  1452 JNI_END

  1454 #ifndef USDT2

  1455 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1456 #else /* USDT2 */

  1457 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1458                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1459 #endif /* USDT2 */

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

  1462   JNIWrapper("NewObjectV");

  1463 #ifndef USDT2

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

  1465 #else /* USDT2 */

  1466   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1467                                env, clazz, (uintptr_t) methodID);

  1468 #endif /* USDT2 */

  1469   jobject obj = NULL;

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

  1472   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1474   JavaValue jvalue(T_VOID);

  1475   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  1477   return obj;

  1478 JNI_END

  1480 #ifndef USDT2

  1481 DT_RETURN_MARK_DECL(NewObject, jobject);

  1482 #else /* USDT2 */

  1483 DT_RETURN_MARK_DECL(NewObject, jobject

  1484                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1485 #endif /* USDT2 */

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

  1488   JNIWrapper("NewObject");

  1489 #ifndef USDT2

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

  1491 #else /* USDT2 */

  1492   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1493                               env, clazz, (uintptr_t) methodID);

  1494 #endif /* USDT2 */

  1495   jobject obj = NULL;

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

  1498   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1500   va_list args;

  1501   va_start(args, methodID);

  1502   JavaValue jvalue(T_VOID);

  1503   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  1505   va_end(args);

  1506   return obj;

  1507 JNI_END

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

  1511   JNIWrapper("GetObjectClass");

  1512 #ifndef USDT2

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

  1514 #else /* USDT2 */

  1515   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1516                                    env, obj);

  1517 #endif /* USDT2 */

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

  1519   jclass ret =

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

  1521 #ifndef USDT2

  1522   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1523 #else /* USDT2 */

  1524   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1525                                     ret);

  1526 #endif /* USDT2 */

  1527   return ret;

  1528 JNI_END

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

  1531   JNIWrapper("IsInstanceOf");

  1532 #ifndef USDT2

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

  1534 #else /* USDT2 */

  1535   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1536                                  env, obj, clazz);

  1537 #endif /* USDT2 */

  1538   jboolean ret = JNI_TRUE;

  1539   if (obj != NULL) {

  1540     ret = JNI_FALSE;

  1541     Klass* k = java_lang_Class::as_Klass(

  1542       JNIHandles::resolve_non_null(clazz));

  1543     if (k != NULL) {

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

  1545     }

  1546   }

  1547 #ifndef USDT2

  1548   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1549 #else /* USDT2 */

  1550   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1551                                   ret);

  1552 #endif /* USDT2 */

  1553   return ret;

  1554 JNI_END

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

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

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

  1560   //

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

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

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

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

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

  1566                         : name_str;

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

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

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

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

  1572   }

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

  1575   // primitive java.lang.Class

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

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

  1578   }

  1580   KlassHandle klass(THREAD,

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

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

  1584   // Method*s.

  1585   klass()->initialize(CHECK_NULL);

  1587   Method* m;

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

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

  1590     // Never search superclasses for constructors

  1591     if (klass->oop_is_instance()) {

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

  1593     } else {

  1594       m = NULL;

  1595     }

  1596   } else {

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

  1598     // Look up interfaces

  1599     if (m == NULL && klass->oop_is_instance()) {

  1600       m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,

  1601                                                                    signature);

  1602     }

  1603   }

  1604   if (m == NULL || (m->is_static() != is_static)) {

  1605     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1606   }

  1607   return m->jmethod_id();

  1608 }

  1611 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1612           const char *name, const char *sig))

  1613   JNIWrapper("GetMethodID");

  1614 #ifndef USDT2

  1615   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1616 #else /* USDT2 */

  1617   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1618                                 env, clazz, (char *) name, (char *) sig);

  1619 #endif /* USDT2 */

  1620   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1621 #ifndef USDT2

  1622   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1623 #else /* USDT2 */

  1624   HOTSPOT_JNI_GETMETHODID_RETURN(

  1625                                  (uintptr_t) ret);

  1626 #endif /* USDT2 */

  1627   return ret;

  1628 JNI_END

  1631 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1632           const char *name, const char *sig))

  1633   JNIWrapper("GetStaticMethodID");

  1634 #ifndef USDT2

  1635   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1636 #else /* USDT2 */

  1637   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1638                                       env, (char *) clazz, (char *) name, (char *)sig);

  1639 #endif /* USDT2 */

  1640   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1641 #ifndef USDT2

  1642   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1643 #else /* USDT2 */

  1644   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1645                                        (uintptr_t) ret);

  1646 #endif /* USDT2 */

  1647   return ret;

  1648 JNI_END

  1652 //

  1653 // Calling Methods

  1654 //

  1656 #ifndef USDT2

  1657 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1658 \

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

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

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

  1662 \

  1663 JNI_ENTRY(ResultType, \

  1664           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1665   JNIWrapper("Call" XSTR(Result) "Method"); \

  1666 \

  1667   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1668   ResultType ret = 0;\

  1669   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1670                      (const ResultType&)ret);\

  1671 \

  1672   va_list args; \

  1673   va_start(args, methodID); \

  1674   JavaValue jvalue(Tag); \

  1675   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1676   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1677   va_end(args); \

  1678   ret = jvalue.get_##ResultType(); \

  1679   return ret;\

  1680 JNI_END \

  1681 \

  1682 \

  1683 JNI_ENTRY(ResultType, \

  1684           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1685   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1686 \

  1687   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1688   ResultType ret = 0;\

  1689   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1690                      (const ResultType&)ret);\

  1691 \

  1692   JavaValue jvalue(Tag); \

  1693   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1694   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1695   ret = jvalue.get_##ResultType(); \

  1696   return ret;\

  1697 JNI_END \

  1698 \

  1699 \

  1700 JNI_ENTRY(ResultType, \

  1701           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1702   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1703   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1704   ResultType ret = 0;\

  1705   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1706                      (const ResultType&)ret);\

  1707 \

  1708   JavaValue jvalue(Tag); \

  1709   JNI_ArgumentPusherArray ap(methodID, args); \

  1710   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1711   ret = jvalue.get_##ResultType(); \

  1712   return ret;\

  1713 JNI_END

  1715 // the runtime type of subword integral basic types is integer

  1716 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1717 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1718 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1719 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1721 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1722 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1723 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1724 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1725 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1727 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1728 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1729 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1731 #else /* USDT2 */

  1733 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1734                           , EntryProbe, ReturnProbe)    \

  1735 \

  1736   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1737                           , ReturnProbe);                          \

  1738 \

  1739 JNI_ENTRY(ResultType, \

  1740           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1741   JNIWrapper("Call" XSTR(Result) "Method"); \

  1742 \

  1743   EntryProbe; \

  1744   ResultType ret = 0;\

  1745   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1746                      (const ResultType&)ret);\

  1747 \

  1748   va_list args; \

  1749   va_start(args, methodID); \

  1750   JavaValue jvalue(Tag); \

  1751   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1752   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1753   va_end(args); \

  1754   ret = jvalue.get_##ResultType(); \

  1755   return ret;\

  1756 JNI_END

  1758 // the runtime type of subword integral basic types is integer

  1759 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1760                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1761                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1762 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

  1763                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1764                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1765 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

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

  1767                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1768 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

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

  1770                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1772 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1773                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1774                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1775 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

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

  1777                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1778 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

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

  1780                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1781 // Float and double probes don't return value because dtrace doesn't currently support it

  1782 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1783                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1784                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1785 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

  1786                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1787                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1789 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1790                           , EntryProbe, ReturnProbe)    \

  1791 \

  1792   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1793                           , ReturnProbe);                          \

  1794 \

  1795 JNI_ENTRY(ResultType, \

  1796           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1797   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1798 \

  1799   EntryProbe;\

  1800   ResultType ret = 0;\

  1801   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1802                      (const ResultType&)ret);\

  1803 \

  1804   JavaValue jvalue(Tag); \

  1805   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1806   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1807   ret = jvalue.get_##ResultType(); \

  1808   return ret;\

  1809 JNI_END

  1811 // the runtime type of subword integral basic types is integer

  1812 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

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

  1814                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1815 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

  1816                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1817                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1818 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

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

  1820                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1821 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

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

  1823                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1825 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1826                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1827                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1828 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

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

  1830                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1831 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1833                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1834 // Float and double probes don't return value because dtrace doesn't currently support it

  1835 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1836                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1837                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1838 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

  1839                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1840                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1842 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1843                           , EntryProbe, ReturnProbe)    \

  1844 \

  1845   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1846                           , ReturnProbe);                          \

  1847 \

  1848 JNI_ENTRY(ResultType, \

  1849           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1850   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1851   EntryProbe; \

  1852   ResultType ret = 0;\

  1853   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1854                      (const ResultType&)ret);\

  1855 \

  1856   JavaValue jvalue(Tag); \

  1857   JNI_ArgumentPusherArray ap(methodID, args); \

  1858   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1859   ret = jvalue.get_##ResultType(); \

  1860   return ret;\

  1861 JNI_END

  1863 // the runtime type of subword integral basic types is integer

  1864 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

  1865                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1866                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1867 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

  1868                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1869                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1870 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

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

  1872                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1873 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

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

  1875                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1877 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1878                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1879                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1880 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

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

  1882                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1883 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

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

  1885                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1886 // Float and double probes don't return value because dtrace doesn't currently support it

  1887 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1888                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1889                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1890 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1891                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1892                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1894 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1895 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1896 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1898 #endif /* USDT2 */

  1900 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1901   JNIWrapper("CallVoidMethod");

  1902 #ifndef USDT2

  1903   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1904 #else /* USDT2 */

  1905   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1906                                    env, obj, (uintptr_t) methodID);

  1907 #endif /* USDT2 */

  1908   DT_VOID_RETURN_MARK(CallVoidMethod);

  1910   va_list args;

  1911   va_start(args, methodID);

  1912   JavaValue jvalue(T_VOID);

  1913   JNI_ArgumentPusherVaArg ap(methodID, args);

  1914   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1915   va_end(args);

  1916 JNI_END

  1919 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1920   JNIWrapper("CallVoidMethodV");

  1921 #ifndef USDT2

  1922   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1923 #else /* USDT2 */

  1924   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1925                                     env, obj, (uintptr_t) methodID);

  1926 #endif /* USDT2 */

  1927   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1929   JavaValue jvalue(T_VOID);

  1930   JNI_ArgumentPusherVaArg ap(methodID, args);

  1931   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1932 JNI_END

  1935 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1936   JNIWrapper("CallVoidMethodA");

  1937 #ifndef USDT2

  1938   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1939 #else /* USDT2 */

  1940   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1941                                     env, obj, (uintptr_t) methodID);

  1942 #endif /* USDT2 */

  1943   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1945   JavaValue jvalue(T_VOID);

  1946   JNI_ArgumentPusherArray ap(methodID, args);

  1947   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1948 JNI_END

  1951 #ifndef USDT2

  1952 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1953 \

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

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

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

  1957 \

  1958 JNI_ENTRY(ResultType, \

  1959           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1960   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1961 \

  1962   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1963   ResultType ret;\

  1964   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1965                      (const ResultType&)ret);\

  1966 \

  1967   va_list args; \

  1968   va_start(args, methodID); \

  1969   JavaValue jvalue(Tag); \

  1970   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1971   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1972   va_end(args); \

  1973   ret = jvalue.get_##ResultType(); \

  1974   return ret;\

  1975 JNI_END \

  1976 \

  1977 JNI_ENTRY(ResultType, \

  1978           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  1979   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  1980   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  1981   ResultType ret;\

  1982   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  1983                      (const ResultType&)ret);\

  1984 \

  1985   JavaValue jvalue(Tag); \

  1986   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1987   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1988   ret = jvalue.get_##ResultType(); \

  1989   return ret;\

  1990 JNI_END \

  1991 \

  1992 JNI_ENTRY(ResultType, \

  1993           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  1994   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  1995   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  1996   ResultType ret;\

  1997   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  1998                      (const ResultType&)ret);\

  1999 \

  2000   JavaValue jvalue(Tag); \

  2001   JNI_ArgumentPusherArray ap(methodID, args); \

  2002   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2003   ret = jvalue.get_##ResultType(); \

  2004   return ret;\

  2005 JNI_END

  2007 // the runtime type of subword integral basic types is integer

  2008 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2009 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2010 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2011 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2013 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2014 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2015 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2016 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2017 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2020 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2021 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2022 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2024 #else /* USDT2 */

  2026 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2027                                     , EntryProbe, ReturnProbe)      \

  2028 \

  2029   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2030                           , ReturnProbe);\

  2031 \

  2032 JNI_ENTRY(ResultType, \

  2033           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2034   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2035 \

  2036   EntryProbe;\

  2037   ResultType ret;\

  2038   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2039                      (const ResultType&)ret);\

  2040 \

  2041   va_list args; \

  2042   va_start(args, methodID); \

  2043   JavaValue jvalue(Tag); \

  2044   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2045   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2046   va_end(args); \

  2047   ret = jvalue.get_##ResultType(); \

  2048   return ret;\

  2049 JNI_END

  2051 // the runtime type of subword integral basic types is integer

  2052 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2053                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2054                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2055 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

  2056                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2057                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2058 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

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

  2060                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2061 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

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

  2063                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2065 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2066                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2067                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2068 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

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

  2070                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2071 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

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

  2073 // Float and double probes don't return value because dtrace doesn't currently support it

  2074                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2075 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2076                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2077                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2078 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

  2079                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2080                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2082 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2083                                     , EntryProbe, ReturnProbe)      \

  2084 \

  2085   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2086                           , ReturnProbe);\

  2087 \

  2088 JNI_ENTRY(ResultType, \

  2089           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2090   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2091 \

  2092   EntryProbe;\

  2093   ResultType ret;\

  2094   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2095                      (const ResultType&)ret);\

  2096 \

  2097   JavaValue jvalue(Tag); \

  2098   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2099   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2100   ret = jvalue.get_##ResultType(); \

  2101   return ret;\

  2102 JNI_END

  2104 // the runtime type of subword integral basic types is integer

  2105 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2107                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2108 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

  2109                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2110                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2111 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

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

  2113                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2114 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

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

  2116                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2118 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2119                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2120                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2121 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

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

  2123                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2124 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

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

  2126 // Float and double probes don't return value because dtrace doesn't currently support it

  2127                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2128 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2129                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2130                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2131 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

  2132                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2133                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2135 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2136                                     , EntryProbe, ReturnProbe)      \

  2137 \

  2138   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2139                           , ReturnProbe);\

  2140 \

  2141 JNI_ENTRY(ResultType, \

  2142           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2143   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2144 \

  2145   EntryProbe;\

  2146   ResultType ret;\

  2147   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2148                      (const ResultType&)ret);\

  2149 \

  2150   JavaValue jvalue(Tag); \

  2151   JNI_ArgumentPusherArray ap(methodID, args); \

  2152   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2153   ret = jvalue.get_##ResultType(); \

  2154   return ret;\

  2155 JNI_END

  2157 // the runtime type of subword integral basic types is integer

  2158 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2160                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2161 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

  2162                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2163                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2164 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

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

  2166                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2167 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

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

  2169                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2171 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2172                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2173                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2174 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

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

  2176                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2177 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2179 // Float and double probes don't return value because dtrace doesn't currently support it

  2180                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2181 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2182                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2183                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2184 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2185                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2186                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2188 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2189                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2190 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2191                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2192 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2193                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2194 #endif /* USDT2 */

  2196 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2197   JNIWrapper("CallNonvirtualVoidMethod");

  2199 #ifndef USDT2

  2200   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2201                env, obj, cls, methodID);

  2202 #else /* USDT2 */

  2203   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2204                env, obj, cls, (uintptr_t) methodID);

  2205 #endif /* USDT2 */

  2206   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2208   va_list args;

  2209   va_start(args, methodID);

  2210   JavaValue jvalue(T_VOID);

  2211   JNI_ArgumentPusherVaArg ap(methodID, args);

  2212   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2213   va_end(args);

  2214 JNI_END

  2217 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2218   JNIWrapper("CallNonvirtualVoidMethodV");

  2220 #ifndef USDT2

  2221   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2222                env, obj, cls, methodID);

  2223 #else /* USDT2 */

  2224   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2225                env, obj, cls, (uintptr_t) methodID);

  2226 #endif /* USDT2 */

  2227   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2229   JavaValue jvalue(T_VOID);

  2230   JNI_ArgumentPusherVaArg ap(methodID, args);

  2231   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2232 JNI_END

  2235 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2236   JNIWrapper("CallNonvirtualVoidMethodA");

  2237 #ifndef USDT2

  2238   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2239                 env, obj, cls, methodID);

  2240 #else /* USDT2 */

  2241   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2242                 env, obj, cls, (uintptr_t) methodID);

  2243 #endif /* USDT2 */

  2244   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2245   JavaValue jvalue(T_VOID);

  2246   JNI_ArgumentPusherArray ap(methodID, args);

  2247   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2248 JNI_END

  2251 #ifndef USDT2

  2252 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2253 \

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

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

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

  2257 \

  2258 JNI_ENTRY(ResultType, \

  2259           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2260   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2261 \

  2262   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2263   ResultType ret = 0;\

  2264   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2265                      (const ResultType&)ret);\

  2266 \

  2267   va_list args; \

  2268   va_start(args, methodID); \

  2269   JavaValue jvalue(Tag); \

  2270   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2271   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2272   va_end(args); \

  2273   ret = jvalue.get_##ResultType(); \

  2274   return ret;\

  2275 JNI_END \

  2276 \

  2277 JNI_ENTRY(ResultType, \

  2278           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2279   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2280   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2281   ResultType ret = 0;\

  2282   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2283                      (const ResultType&)ret);\

  2284 \

  2285   JavaValue jvalue(Tag); \

  2286   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2287   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2288   ret = jvalue.get_##ResultType(); \

  2289   return ret;\

  2290 JNI_END \

  2291 \

  2292 JNI_ENTRY(ResultType, \

  2293           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2294   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2295   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2296   ResultType ret = 0;\

  2297   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2298                      (const ResultType&)ret);\

  2299 \

  2300   JavaValue jvalue(Tag); \

  2301   JNI_ArgumentPusherArray ap(methodID, args); \

  2302   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2303   ret = jvalue.get_##ResultType(); \

  2304   return ret;\

  2305 JNI_END

  2307 // the runtime type of subword integral basic types is integer

  2308 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2309 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2310 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2311 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2313 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2314 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2315 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2316 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2317 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2320 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2321 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2322 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2324 #else /* USDT2 */

  2326 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2327                                 , EntryProbe, ResultProbe) \

  2328 \

  2329   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2330                           , ResultProbe);                               \

  2331 \

  2332 JNI_ENTRY(ResultType, \

  2333           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2334   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2335 \

  2336   EntryProbe; \

  2337   ResultType ret = 0;\

  2338   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2339                      (const ResultType&)ret);\

  2340 \

  2341   va_list args; \

  2342   va_start(args, methodID); \

  2343   JavaValue jvalue(Tag); \

  2344   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2345   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2346   va_end(args); \

  2347   ret = jvalue.get_##ResultType(); \

  2348   return ret;\

  2349 JNI_END

  2351 // the runtime type of subword integral basic types is integer

  2352 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2353                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2354                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2355 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

  2356                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2357                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2358 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

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

  2360                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2361 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

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

  2363                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2365 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2366                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2367                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2368 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

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

  2370                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2371 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2373                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2374 // Float and double probes don't return value because dtrace doesn't currently support it

  2375 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2376                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2377                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2378 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

  2379                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2380                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2382 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2383                                 , EntryProbe, ResultProbe) \

  2384 \

  2385   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2386                           , ResultProbe);                               \

  2387 \

  2388 JNI_ENTRY(ResultType, \

  2389           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2390   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2391 \

  2392   EntryProbe; \

  2393   ResultType ret = 0;\

  2394   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2395                      (const ResultType&)ret);\

  2396 \

  2397   JavaValue jvalue(Tag); \

  2398   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2399   /* Make sure class is initialized before trying to invoke its method */ \

  2400   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2401   k()->initialize(CHECK_0); \

  2402   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2403   va_end(args); \

  2404   ret = jvalue.get_##ResultType(); \

  2405   return ret;\

  2406 JNI_END

  2408 // the runtime type of subword integral basic types is integer

  2409 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

  2410                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2411                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2412 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

  2413                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2414                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2415 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

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

  2417                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2418 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

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

  2420                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2422 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2423                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2424                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2425 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

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

  2427                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2428 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

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

  2430                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2431 // Float and double probes don't return value because dtrace doesn't currently support it

  2432 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2433                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2434                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2435 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

  2436                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2437                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2439 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2440                                 , EntryProbe, ResultProbe) \

  2441 \

  2442   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2443                           , ResultProbe);                               \

  2444 \

  2445 JNI_ENTRY(ResultType, \

  2446           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2447   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2448 \

  2449   EntryProbe; \

  2450   ResultType ret = 0;\

  2451   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2452                      (const ResultType&)ret);\

  2453 \

  2454   JavaValue jvalue(Tag); \

  2455   JNI_ArgumentPusherArray ap(methodID, args); \

  2456   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2457   ret = jvalue.get_##ResultType(); \

  2458   return ret;\

  2459 JNI_END

  2461 // the runtime type of subword integral basic types is integer

  2462 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2464                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2465 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

  2466                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2467                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2468 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

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

  2470                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2471 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

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

  2473                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2475 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2476                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2477                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2478 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

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

  2480                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2481 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

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

  2483                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2484 // Float and double probes don't return value because dtrace doesn't currently support it

  2485 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2486                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2487                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2488 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2489                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2490                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2492 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2493                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2494 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2495                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2496 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2497                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2498 #endif /* USDT2 */

  2500 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2501   JNIWrapper("CallStaticVoidMethod");

  2502 #ifndef USDT2

  2503   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2504 #else /* USDT2 */

  2505   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2506                                          env, cls, (uintptr_t) methodID);

  2507 #endif /* USDT2 */

  2508   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2510   va_list args;

  2511   va_start(args, methodID);

  2512   JavaValue jvalue(T_VOID);

  2513   JNI_ArgumentPusherVaArg ap(methodID, args);

  2514   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2515   va_end(args);

  2516 JNI_END

  2519 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2520   JNIWrapper("CallStaticVoidMethodV");

  2521 #ifndef USDT2

  2522   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2523 #else /* USDT2 */

  2524   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2525                                           env, cls, (uintptr_t) methodID);

  2526 #endif /* USDT2 */

  2527   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2529   JavaValue jvalue(T_VOID);

  2530   JNI_ArgumentPusherVaArg ap(methodID, args);

  2531   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2532 JNI_END

  2535 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2536   JNIWrapper("CallStaticVoidMethodA");

  2537 #ifndef USDT2

  2538   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2539 #else /* USDT2 */

  2540   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2541                                           env, cls, (uintptr_t) methodID);

  2542 #endif /* USDT2 */

  2543   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2545   JavaValue jvalue(T_VOID);

  2546   JNI_ArgumentPusherArray ap(methodID, args);

  2547   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2548 JNI_END

  2551 //

  2552 // Accessing Fields

  2553 //

  2556 #ifndef USDT2

  2557 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2558 #else /* USDT2 */

  2559 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2560                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2561 #endif /* USDT2 */

  2563 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2564           const char *name, const char *sig))

  2565   JNIWrapper("GetFieldID");

  2566 #ifndef USDT2

  2567   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2568 #else /* USDT2 */

  2569   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2570                                env, clazz, (char *) name, (char *) sig);

  2571 #endif /* USDT2 */

  2572   jfieldID ret = 0;

  2573   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2575   // The class should have been loaded (we have an instance of the class

  2576   // passed in) so the field and signature should already be in the symbol

  2577   // table.  If they're not there, the field doesn't exist.

  2578   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2579   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2580   if (fieldname == NULL || signame == NULL) {

  2581     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2582   }

  2583   KlassHandle k(THREAD,

  2584                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2585   // Make sure class is initialized before handing id's out to fields

  2586   k()->initialize(CHECK_NULL);

  2588   fieldDescriptor fd;

  2589   if (!k()->oop_is_instance() ||

  2590       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2591     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2592   }

  2594   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2595   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2596   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2597   return ret;

  2598 JNI_END

  2601 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2602   JNIWrapper("GetObjectField");

  2603 #ifndef USDT2

  2604   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2605 #else /* USDT2 */

  2606   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2607                                    env, obj, (uintptr_t) fieldID);

  2608 #endif /* USDT2 */

  2609   oop o = JNIHandles::resolve_non_null(obj);

  2610   Klass* k = o->klass();

  2611   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2612   // Keep JVMTI addition small and only check enabled flag here.

  2613   // jni_GetField_probe() assumes that is okay to create handles.

  2614   if (JvmtiExport::should_post_field_access()) {

  2615     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2616   }

  2617   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2618 #if INCLUDE_ALL_GCS

  2619   // If G1 is enabled and we are accessing the value of the referent

  2620   // field in a reference object then we need to register a non-null

  2621   // referent with the SATB barrier.

  2622   if (UseG1GC) {

  2623     bool needs_barrier = false;

  2625     if (ret != NULL &&

  2626         offset == java_lang_ref_Reference::referent_offset &&

  2627         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2628       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2629       needs_barrier = true;

  2630     }

  2632     if (needs_barrier) {

  2633       oop referent = JNIHandles::resolve(ret);

  2634       G1SATBCardTableModRefBS::enqueue(referent);

  2635     }

  2636   }

  2637 #endif // INCLUDE_ALL_GCS

  2638 #ifndef USDT2

  2639   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2640 #else /* USDT2 */

  2641 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2642                                   ret);

  2643 #endif /* USDT2 */

  2644   return ret;

  2645 JNI_END

  2648 #ifndef USDT2

  2649 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2650 \

  2651   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2652 \

  2653 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2654   JNIWrapper("Get" XSTR(Result) "Field"); \

  2655 \

  2656   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2657   Return ret = 0;\

  2658   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2659 \

  2660   oop o = JNIHandles::resolve_non_null(obj); \

  2661   Klass* k = o->klass(); \

  2662   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2663   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2664   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2665   /* and creates a ResetNoHandleMark.                                   */ \

  2666   if (JvmtiExport::should_post_field_access()) { \

  2667     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2668   } \

  2669   ret = o->Fieldname##_field(offset); \

  2670   return ret; \

  2671 JNI_END

  2673 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2674 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2675 DEFINE_GETFIELD(jchar,    char,   Char)

  2676 DEFINE_GETFIELD(jshort,   short,  Short)

  2677 DEFINE_GETFIELD(jint,     int,    Int)

  2678 DEFINE_GETFIELD(jlong,    long,   Long)

  2679 DEFINE_GETFIELD(jfloat,   float,  Float)

  2680 DEFINE_GETFIELD(jdouble,  double, Double)

  2682 #else /* USDT2 */

  2684 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2685   , EntryProbe, ReturnProbe) \

  2686 \

  2687   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2688   , ReturnProbe); \

  2689 \

  2690 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2691   JNIWrapper("Get" XSTR(Result) "Field"); \

  2692 \

  2693   EntryProbe; \

  2694   Return ret = 0;\

  2695   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2696 \

  2697   oop o = JNIHandles::resolve_non_null(obj); \

  2698   Klass* k = o->klass(); \

  2699   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2700   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2701   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2702   /* and creates a ResetNoHandleMark.                                   */ \

  2703   if (JvmtiExport::should_post_field_access()) { \

  2704     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2705   } \

  2706   ret = o->Fieldname##_field(offset); \

  2707   return ret; \

  2708 JNI_END

  2710 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2711                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2712                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2713 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2714                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2715                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2716 DEFINE_GETFIELD(jchar,    char,   Char

  2717                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2718                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2719 DEFINE_GETFIELD(jshort,   short,  Short

  2720                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2721                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2722 DEFINE_GETFIELD(jint,     int,    Int

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

  2724                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2725 DEFINE_GETFIELD(jlong,    long,   Long

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

  2727                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2728 // Float and double probes don't return value because dtrace doesn't currently support it

  2729 DEFINE_GETFIELD(jfloat,   float,  Float

  2730                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2731                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2732 DEFINE_GETFIELD(jdouble,  double, Double

  2733                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2734                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2735 #endif /* USDT2 */

  2737 address jni_GetBooleanField_addr() {

  2738   return (address)jni_GetBooleanField;

  2739 }

  2740 address jni_GetByteField_addr() {

  2741   return (address)jni_GetByteField;

  2742 }

  2743 address jni_GetCharField_addr() {

  2744   return (address)jni_GetCharField;

  2745 }

  2746 address jni_GetShortField_addr() {

  2747   return (address)jni_GetShortField;

  2748 }

  2749 address jni_GetIntField_addr() {

  2750   return (address)jni_GetIntField;

  2751 }

  2752 address jni_GetLongField_addr() {

  2753   return (address)jni_GetLongField;

  2754 }

  2755 address jni_GetFloatField_addr() {

  2756   return (address)jni_GetFloatField;

  2757 }

  2758 address jni_GetDoubleField_addr() {

  2759   return (address)jni_GetDoubleField;

  2760 }

  2762 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2763   JNIWrapper("SetObjectField");

  2764 #ifndef USDT2

  2765   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2766 #else /* USDT2 */

  2767   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2768                                    env, obj, (uintptr_t) fieldID, value);

  2769 #endif /* USDT2 */

  2770   oop o = JNIHandles::resolve_non_null(obj);

  2771   Klass* k = o->klass();

  2772   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2773   // Keep JVMTI addition small and only check enabled flag here.

  2774   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2775   // and creates a ResetNoHandleMark.

  2776   if (JvmtiExport::should_post_field_modification()) {

  2777     jvalue field_value;

  2778     field_value.l = value;

  2779     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2780   }

  2781   o->obj_field_put(offset, JNIHandles::resolve(value));

  2782 #ifndef USDT2

  2783   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2784 #else /* USDT2 */

  2785   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2786 );

  2787 #endif /* USDT2 */

  2788 JNI_END

  2790 #ifndef USDT2

  2791 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2792 \

  2793 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2794   JNIWrapper("Set" XSTR(Result) "Field"); \

  2795 \

  2796   FP_SELECT_##Result( \

  2797     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2798     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2799 \

  2800   oop o = JNIHandles::resolve_non_null(obj); \

  2801   Klass* k = o->klass(); \

  2802   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2803   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2804   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2805   /* and creates a ResetNoHandleMark.                                   */ \

  2806   if (JvmtiExport::should_post_field_modification()) { \

  2807     jvalue field_value; \

  2808     field_value.unionType = value; \

  2809     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2810   } \

  2811   o->Fieldname##_field_put(offset, value); \

  2812   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2813 JNI_END

  2815 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2816 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2817 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2818 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2819 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2820 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2821 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2822 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2824 #else /* USDT2 */

  2826 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2827                         , EntryProbe, ReturnProbe) \

  2828 \

  2829 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2830   JNIWrapper("Set" XSTR(Result) "Field"); \

  2831 \

  2832   EntryProbe; \

  2833 \

  2834   oop o = JNIHandles::resolve_non_null(obj); \

  2835   Klass* k = o->klass(); \

  2836   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2837   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2838   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2839   /* and creates a ResetNoHandleMark.                                   */ \

  2840   if (JvmtiExport::should_post_field_modification()) { \

  2841     jvalue field_value; \

  2842     field_value.unionType = value; \

  2843     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2844   } \

  2845   o->Fieldname##_field_put(offset, value); \

  2846   ReturnProbe; \

  2847 JNI_END

  2849 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2850                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2851                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2852 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2853                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2854                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2855 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2856                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2857                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2858 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2859                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2860                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2861 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

  2862                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2863                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2864 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

  2865                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2866                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2867 // Float and double probes don't return value because dtrace doesn't currently support it

  2868 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2869                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2870                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2871 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2872                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2873                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2874 #endif /* USDT2 */

  2876 #ifndef USDT2

  2877 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2878 #else /* USDT2 */

  2879 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2880                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2881 #endif /* USDT2 */

  2883 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2884   JNIWrapper("ToReflectedField");

  2885 #ifndef USDT2

  2886   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2887                 env, cls, fieldID, isStatic);

  2888 #else /* USDT2 */

  2889   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2890                 env, cls, (uintptr_t) fieldID, isStatic);

  2891 #endif /* USDT2 */

  2892   jobject ret = NULL;

  2893   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2895   fieldDescriptor fd;

  2896   bool found = false;

  2897   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2899   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2901   if (isStatic) {

  2902     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2903     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2904     assert(id->is_static_field_id(), "invalid static field id");

  2905     found = id->find_local_field(&fd);

  2906   } else {

  2907     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2908     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2909     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2910   }

  2911   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2912   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2913   ret = JNIHandles::make_local(env, reflected);

  2914   return ret;

  2915 JNI_END

  2918 //

  2919 // Accessing Static Fields

  2920 //

  2921 #ifndef USDT2

  2922 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2923 #else /* USDT2 */

  2924 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2925                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2926 #endif /* USDT2 */

  2928 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2929           const char *name, const char *sig))

  2930   JNIWrapper("GetStaticFieldID");

  2931 #ifndef USDT2

  2932   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2933 #else /* USDT2 */

  2934   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2935                                      env, clazz, (char *) name, (char *) sig);

  2936 #endif /* USDT2 */

  2937   jfieldID ret = NULL;

  2938   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2940   // The class should have been loaded (we have an instance of the class

  2941   // passed in) so the field and signature should already be in the symbol

  2942   // table.  If they're not there, the field doesn't exist.

  2943   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2944   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2945   if (fieldname == NULL || signame == NULL) {

  2946     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2947   }

  2948   KlassHandle k(THREAD,

  2949                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2950   // Make sure class is initialized before handing id's out to static fields

  2951   k()->initialize(CHECK_NULL);

  2953   fieldDescriptor fd;

  2954   if (!k()->oop_is_instance() ||

  2955       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2956     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2957   }

  2959   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2960   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2961   debug_only(id->set_is_static_field_id();)

  2963   debug_only(id->verify(fd.field_holder()));

  2965   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2966   return ret;

  2967 JNI_END

  2970 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2971   JNIWrapper("GetStaticObjectField");

  2972 #ifndef USDT2

  2973   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  2974 #else /* USDT2 */

  2975   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  2976                                          env, clazz, (uintptr_t) fieldID);

  2977 #endif /* USDT2 */

  2978 #if INCLUDE_JNI_CHECK

  2979   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  2980 #endif // INCLUDE_JNI_CHECK

  2981   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2982   assert(id->is_static_field_id(), "invalid static field id");

  2983   // Keep JVMTI addition small and only check enabled flag here.

  2984   // jni_GetField_probe() assumes that is okay to create handles.

  2985   if (JvmtiExport::should_post_field_access()) {

  2986     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  2987   }

  2988   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  2989 #ifndef USDT2

  2990   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  2991 #else /* USDT2 */

  2992   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  2993                                           ret);

  2994 #endif /* USDT2 */

  2995   return ret;

  2996 JNI_END

  2998 #ifndef USDT2

  2999 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  3000 \

  3001   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3002 \

  3003 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3004   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3005   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3006   Return ret = 0;\

  3007   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3008                      (const Return&)ret);\

  3009   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3010   assert(id->is_static_field_id(), "invalid static field id"); \

  3011   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3012   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3013   if (JvmtiExport::should_post_field_access()) { \

  3014     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3015   } \

  3016   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3017   return ret;\

  3018 JNI_END

  3020 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3021 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3022 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3023 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3024 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3025 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3026 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3027 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3029 #else /* USDT2 */

  3031 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3032                               , EntryProbe, ReturnProbe) \

  3033 \

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

  3035                           , ReturnProbe);                                          \

  3036 \

  3037 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3038   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3039   EntryProbe; \

  3040   Return ret = 0;\

  3041   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3042                      (const Return&)ret);\

  3043   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3044   assert(id->is_static_field_id(), "invalid static field id"); \

  3045   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3046   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3047   if (JvmtiExport::should_post_field_access()) { \

  3048     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3049   } \

  3050   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3051   return ret;\

  3052 JNI_END

  3054 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3055                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3056 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3057                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3058 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3059                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3060 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3061                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3062 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3063                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3064 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3065                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3066 // Float and double probes don't return value because dtrace doesn't currently support it

  3067 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3068                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3069 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3070                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3071 #endif /* USDT2 */

  3073 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3074   JNIWrapper("SetStaticObjectField");

  3075 #ifndef USDT2

  3076   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3077 #else /* USDT2 */

  3078  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3079                                         env, clazz, (uintptr_t) fieldID, value);

  3080 #endif /* USDT2 */

  3081   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3082   assert(id->is_static_field_id(), "invalid static field id");

  3083   // Keep JVMTI addition small and only check enabled flag here.

  3084   // jni_SetField_probe() assumes that is okay to create handles.

  3085   if (JvmtiExport::should_post_field_modification()) {

  3086     jvalue field_value;

  3087     field_value.l = value;

  3088     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3089   }

  3090   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3091 #ifndef USDT2

  3092   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3093 #else /* USDT2 */

  3094   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3095                                           );

  3096 #endif /* USDT2 */

  3097 JNI_END

  3100 #ifndef USDT2

  3101 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3102 \

  3103 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3104   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3105   FP_SELECT_##Result( \

  3106      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3107      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3108 \

  3109   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3110   assert(id->is_static_field_id(), "invalid static field id"); \

  3111   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3112   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3113   if (JvmtiExport::should_post_field_modification()) { \

  3114     jvalue field_value; \

  3115     field_value.unionType = value; \

  3116     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3117   } \

  3118   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3119   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3120 JNI_END

  3122 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3123 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3124 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3125 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3126 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3127 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3128 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3129 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3131 #else /* USDT2 */

  3133 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3134                               , EntryProbe, ReturnProbe) \

  3135 \

  3136 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3137   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3138   EntryProbe; \

  3139 \

  3140   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3141   assert(id->is_static_field_id(), "invalid static field id"); \

  3142   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3143   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3144   if (JvmtiExport::should_post_field_modification()) { \

  3145     jvalue field_value; \

  3146     field_value.unionType = value; \

  3147     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3148   } \

  3149   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3150   ReturnProbe;\

  3151 JNI_END

  3153 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3154                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3155                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3156 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3157                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3158                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3159 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3160                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3161                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3162 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3163                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3164                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3165 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3166                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3167                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3168 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3169                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3170                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3171 // Float and double probes don't return value because dtrace doesn't currently support it

  3172 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3173                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3174                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3175 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3176                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3177                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3178 #endif /* USDT2 */

  3180 //

  3181 // String Operations

  3182 //

  3184 // Unicode Interface

  3186 #ifndef USDT2

  3187 DT_RETURN_MARK_DECL(NewString, jstring);

  3188 #else /* USDT2 */

  3189 DT_RETURN_MARK_DECL(NewString, jstring

  3190                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3191 #endif /* USDT2 */

  3193 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3194   JNIWrapper("NewString");

  3195 #ifndef USDT2

  3196   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3197 #else /* USDT2 */

  3198  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3199                              env, (uint16_t *) unicodeChars, len);

  3200 #endif /* USDT2 */

  3201   jstring ret = NULL;

  3202   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3203   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3204   ret = (jstring) JNIHandles::make_local(env, string);

  3205   return ret;

  3206 JNI_END

  3209 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3210   JNIWrapper("GetStringLength");

  3211 #ifndef USDT2

  3212   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3213 #else /* USDT2 */

  3214   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3215                                     env, string);

  3216 #endif /* USDT2 */

  3217   jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string));

  3218 #ifndef USDT2

  3219   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3220 #else /* USDT2 */

  3221  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3222                                     ret);

  3223 #endif /* USDT2 */

  3224   return ret;

  3225 JNI_END

  3228 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3229   JNIEnv *env, jstring string, jboolean *isCopy))

  3230   JNIWrapper("GetStringChars");

  3231 #ifndef USDT2

  3232   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3233 #else /* USDT2 */

  3234  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3235                                   env, string, (uintptr_t *) isCopy);

  3236 #endif /* USDT2 */

  3237   oop s = JNIHandles::resolve_non_null(string);

  3238   int s_len = java_lang_String::length(s);

  3239   typeArrayOop s_value = java_lang_String::value(s);

  3240   int s_offset = java_lang_String::offset(s);

  3241   jchar* buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3242   /* JNI Specification states return NULL on OOM */

  3243   if (buf != NULL) {

  3244     if (s_len > 0) {

  3245       memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3246     }

  3247     buf[s_len] = 0;

  3248     //%note jni_5

  3249     if (isCopy != NULL) {

  3250       *isCopy = JNI_TRUE;

  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 = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string));

  3321 #ifndef USDT2

  3322   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3323 #else /* USDT2 */

  3324   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3325                                         ret);

  3326 #endif /* USDT2 */

  3327   return ret;

  3328 JNI_END

  3331 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3332   JNIWrapper("GetStringUTFChars");

  3333 #ifndef USDT2

  3334   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3335 #else /* USDT2 */

  3336  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3337                                      env, string, (uintptr_t *) isCopy);

  3338 #endif /* USDT2 */

  3339   oop java_string = JNIHandles::resolve_non_null(string);

  3340   size_t length = java_lang_String::utf8_length(java_string);

  3341   /* JNI Specification states return NULL on OOM */

  3342   char* result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);

  3343   if (result != NULL) {

  3344     java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3345     if (isCopy != NULL) {

  3346       *isCopy = JNI_TRUE;

  3347     }

  3348   }

  3349 #ifndef USDT2

  3350   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3351 #else /* USDT2 */

  3352  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3353                                       result);

  3354 #endif /* USDT2 */

  3355   return result;

  3356 JNI_END

  3359 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3360   JNIWrapper("ReleaseStringUTFChars");

  3361 #ifndef USDT2

  3362   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3363 #else /* USDT2 */

  3364  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3365                                          env, str, (char *) chars);

  3366 #endif /* USDT2 */

  3367   if (chars != NULL) {

  3368     FreeHeap((char*) chars);

  3369   }

  3370 #ifndef USDT2

  3371   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3372 #else /* USDT2 */

  3373 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3374 );

  3375 #endif /* USDT2 */

  3376 JNI_END

  3379 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3380   JNIWrapper("GetArrayLength");

  3381 #ifndef USDT2

  3382   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3383 #else /* USDT2 */

  3384  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3385                                   env, array);

  3386 #endif /* USDT2 */

  3387   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3388   assert(a->is_array(), "must be array");

  3389   jsize ret = a->length();

  3390 #ifndef USDT2

  3391   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3392 #else /* USDT2 */

  3393  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3394                                    ret);

  3395 #endif /* USDT2 */

  3396   return ret;

  3397 JNI_END

  3400 //

  3401 // Object Array Operations

  3402 //

  3404 #ifndef USDT2

  3405 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3406 #else /* USDT2 */

  3407 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3408                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3409 #endif /* USDT2 */

  3411 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3412   JNIWrapper("NewObjectArray");

  3413 #ifndef USDT2

  3414   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3415 #else /* USDT2 */

  3416  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3417                                   env, length, elementClass, initialElement);

  3418 #endif /* USDT2 */

  3419   jobjectArray ret = NULL;

  3420   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3421   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3422   Klass* ako = ek()->array_klass(CHECK_NULL);

  3423   KlassHandle ak = KlassHandle(THREAD, ako);

  3424   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3425   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3426   oop initial_value = JNIHandles::resolve(initialElement);

  3427   if (initial_value != NULL) {  // array already initialized with NULL

  3428     for (int index = 0; index < length; index++) {

  3429       result->obj_at_put(index, initial_value);

  3430     }

  3431   }

  3432   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3433   return ret;

  3434 JNI_END

  3436 #ifndef USDT2

  3437 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3438 #else /* USDT2 */

  3439 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3440                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3441 #endif /* USDT2 */

  3443 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3444   JNIWrapper("GetObjectArrayElement");

  3445 #ifndef USDT2

  3446   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3447 #else /* USDT2 */

  3448  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3449                                          env, array, index);

  3450 #endif /* USDT2 */

  3451   jobject ret = NULL;

  3452   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3453   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3454   if (a->is_within_bounds(index)) {

  3455     ret = JNIHandles::make_local(env, a->obj_at(index));

  3456     return ret;

  3457   } else {

  3458     char buf[jintAsStringSize];

  3459     sprintf(buf, "%d", index);

  3460     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3461   }

  3462 JNI_END

  3464 #ifndef USDT2

  3465 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3466 #else /* USDT2 */

  3467 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3468                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3469 #endif /* USDT2 */

  3471 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3472   JNIWrapper("SetObjectArrayElement");

  3473 #ifndef USDT2

  3474   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3475 #else /* USDT2 */

  3476  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3477                                          env, array, index, value);

  3478 #endif /* USDT2 */

  3479   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3481   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3482   oop v = JNIHandles::resolve(value);

  3483   if (a->is_within_bounds(index)) {

  3484     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3485       a->obj_at_put(index, v);

  3486     } else {

  3487       THROW(vmSymbols::java_lang_ArrayStoreException());

  3488     }

  3489   } else {

  3490     char buf[jintAsStringSize];

  3491     sprintf(buf, "%d", index);

  3492     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3493   }

  3494 JNI_END

  3497 #ifndef USDT2

  3498 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3499 \

  3500   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3501 \

  3502 JNI_ENTRY(Return, \

  3503           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3504   JNIWrapper("New" XSTR(Result) "Array"); \

  3505   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3506   Return ret = NULL;\

  3507   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3508 \

  3509   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3510   ret = (Return) JNIHandles::make_local(env, obj); \

  3511   return ret;\

  3512 JNI_END

  3514 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3515 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3516 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3517 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3518 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3519 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3520 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3521 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3523 #else /* USDT2 */

  3525 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3526                               ,EntryProbe,ReturnProbe)  \

  3527 \

  3528   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3529                       , ReturnProbe); \

  3530 \

  3531 JNI_ENTRY(Return, \

  3532           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3533   JNIWrapper("New" XSTR(Result) "Array"); \

  3534   EntryProbe; \

  3535   Return ret = NULL;\

  3536   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3537 \

  3538   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3539   ret = (Return) JNIHandles::make_local(env, obj); \

  3540   return ret;\

  3541 JNI_END

  3543 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3544                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3545                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3546 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3547                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3548                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3549 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3550                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3551                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3552 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3553                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3554                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3555 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3556                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3557                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3558 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3559                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3560                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3561 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3562                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3563                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3564 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3565                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3566                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3567 #endif /* USDT2 */

  3569 // Return an address which will fault if the caller writes to it.

  3571 static char* get_bad_address() {

  3572   static char* bad_address = NULL;

  3573   if (bad_address == NULL) {

  3574     size_t size = os::vm_allocation_granularity();

  3575     bad_address = os::reserve_memory(size);

  3576     if (bad_address != NULL) {

  3577       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3578                          /*is_committed*/false);

  3579     }

  3580   }

  3581   return bad_address;

  3582 }

  3585 #ifndef USDT2

  3586 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3587 \

  3588 JNI_QUICK_ENTRY(ElementType*, \

  3589           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3590   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3591   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3592   /* allocate an chunk of memory in c land */ \

  3593   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3594   ElementType* result; \

  3595   int len = a->length(); \

  3596   if (len == 0) { \

  3597     /* Empty array: legal but useless, can't return NULL. \

  3598      * Return a pointer to something useless. \

  3599      * Avoid asserts in typeArrayOop. */ \

  3600     result = (ElementType*)get_bad_address(); \

  3601   } else { \

  3602     /* JNI Specification states return NULL on OOM */                    \

  3603     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3604     if (result != NULL) {                                                \

  3605       /* copy the array to the c chunk */                                \

  3606       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3607       if (isCopy) {                                                      \

  3608         *isCopy = JNI_TRUE;                                              \

  3609       }                                                                  \

  3610     }                                                                    \

  3611   } \

  3612   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3613   return result; \

  3614 JNI_END

  3616 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3617 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3618 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3619 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3620 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3621 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3622 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3623 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3625 #else /* USDT2 */

  3627 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3628                                       , EntryProbe, ReturnProbe) \

  3629 \

  3630 JNI_QUICK_ENTRY(ElementType*, \

  3631           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3632   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3633   EntryProbe; \

  3634   /* allocate an chunk of memory in c land */ \

  3635   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3636   ElementType* result; \

  3637   int len = a->length(); \

  3638   if (len == 0) { \

  3639     /* Empty array: legal but useless, can't return NULL. \

  3640      * Return a pointer to something useless. \

  3641      * Avoid asserts in typeArrayOop. */ \

  3642     result = (ElementType*)get_bad_address(); \

  3643   } else { \

  3644     /* JNI Specification states return NULL on OOM */                    \

  3645     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3646     if (result != NULL) {                                                \

  3647       /* copy the array to the c chunk */                                \

  3648       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3649       if (isCopy) {                                                      \

  3650         *isCopy = JNI_TRUE;                                              \

  3651       }                                                                  \

  3652     }                                                                    \

  3653   } \

  3654   ReturnProbe; \

  3655   return result; \

  3656 JNI_END

  3658 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3659                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3660                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3661 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3662                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3663                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3664 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3665                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3666                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3667 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3668                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3669                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3670 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

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

  3672                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3673 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3674                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3675                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3676 // Float and double probes don't return value because dtrace doesn't currently support it

  3677 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3678                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3679                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3680 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3681                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3682                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3683 #endif /* USDT2 */

  3685 #ifndef USDT2

  3686 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3687 \

  3688 JNI_QUICK_ENTRY(void, \

  3689           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3690                                              ElementType *buf, jint mode)) \

  3691   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3692   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3693   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3694   int len = a->length(); \

  3695   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3696     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3697       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3698     } \

  3699     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3700       FreeHeap(buf); \

  3701     } \

  3702   } \

  3703   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3704 JNI_END

  3706 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3707 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3708 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3709 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3710 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3711 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3712 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3713 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3715 #else /* USDT2 */

  3717 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3718                                           , EntryProbe, ReturnProbe);\

  3719 \

  3720 JNI_QUICK_ENTRY(void, \

  3721           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3722                                              ElementType *buf, jint mode)) \

  3723   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3724   EntryProbe; \

  3725   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3726   int len = a->length(); \

  3727   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3728     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3729       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3730     } \

  3731     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3732       FreeHeap(buf); \

  3733     } \

  3734   } \

  3735   ReturnProbe; \

  3736 JNI_END

  3738 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3739                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3740                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3741 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3742                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3743                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3744 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3745                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3746                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3747 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3748                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3749                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3750 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3751                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3752                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3753 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3754                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3755                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3756 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3757                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3758                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3759 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3760                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3761                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3762 #endif /* USDT2 */

  3764 #ifndef USDT2

  3765 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3766   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3767 \

  3768 JNI_ENTRY(void, \

  3769 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3770              jsize len, ElementType *buf)) \

  3771   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3772   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3773   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3774   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3775   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3776     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3777   } else { \

  3778     if (len > 0) { \

  3779       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3780       memcpy((u_char*) buf, \

  3781              (u_char*) src->Tag##_at_addr(start), \

  3782              len << sc);                          \

  3783     } \

  3784   } \

  3785 JNI_END

  3787 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3788 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3789 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3790 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3791 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3792 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3793 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3794 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3796 #else /* USDT2 */

  3798 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3799                                     , EntryProbe, ReturnProbe); \

  3800   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3801                            , ReturnProbe); \

  3802 \

  3803 JNI_ENTRY(void, \

  3804 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3805              jsize len, ElementType *buf)) \

  3806   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3807   EntryProbe; \

  3808   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3809   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3810   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3811     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3812   } else { \

  3813     if (len > 0) { \

  3814       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3815       memcpy((u_char*) buf, \

  3816              (u_char*) src->Tag##_at_addr(start), \

  3817              len << sc);                          \

  3818     } \

  3819   } \

  3820 JNI_END

  3822 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3823                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3824                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3825 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3826                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3827                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3828 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3829                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3830                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3831 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3832                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3833                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3834 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3835                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3836                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3837 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3838                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3839                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3840 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3841                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3842                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3843 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3844                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3845                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3846 #endif /* USDT2 */

  3848 #ifndef USDT2

  3849 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3850   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3851 \

  3852 JNI_ENTRY(void, \

  3853 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3854              jsize len, const ElementType *buf)) \

  3855   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3856   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3857   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3858   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3859   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3860     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3861   } else { \

  3862     if (len > 0) { \

  3863       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3864       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3865              (u_char*) buf, \

  3866              len << sc);    \

  3867     } \

  3868   } \

  3869 JNI_END

  3871 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3872 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3873 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3874 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3875 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3876 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3877 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3878 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3880 #else /* USDT2 */

  3882 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3883                                     , EntryProbe, ReturnProbe); \

  3884   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3885                            ,ReturnProbe);           \

  3886 \

  3887 JNI_ENTRY(void, \

  3888 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3889              jsize len, const ElementType *buf)) \

  3890   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3891   EntryProbe; \

  3892   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3893   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3894   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3895     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3896   } else { \

  3897     if (len > 0) { \

  3898       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3899       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3900              (u_char*) buf, \

  3901              len << sc);    \

  3902     } \

  3903   } \

  3904 JNI_END

  3906 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3907                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3908                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3909 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3910                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3911                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3912 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3913                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3914                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3915 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3916                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3917                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3918 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3919                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3920                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3921 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3922                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3923                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3924 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3925                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3926                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3927 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3928                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3929                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3930 #endif /* USDT2 */

  3933 //

  3934 // Interception of natives

  3935 //

  3937 // The RegisterNatives call being attempted tried to register with a method that

  3938 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3939 // to see if the native method is now wrapped with the prefixes.  See the

  3940 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3941 static Method* find_prefixed_native(KlassHandle k,

  3942                                       Symbol* name, Symbol* signature, TRAPS) {

  3943 #if INCLUDE_JVMTI

  3944   ResourceMark rm(THREAD);

  3945   Method* method;

  3946   int name_len = name->utf8_length();

  3947   char* name_str = name->as_utf8();

  3948   int prefix_count;

  3949   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3950   for (int i = 0; i < prefix_count; i++) {

  3951     char* prefix = prefixes[i];

  3952     int prefix_len = (int)strlen(prefix);

  3954     // try adding this prefix to the method name and see if it matches another method name

  3955     int trial_len = name_len + prefix_len;

  3956     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3957     strcpy(trial_name_str, prefix);

  3958     strcat(trial_name_str, name_str);

  3959     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3960     if (trial_name == NULL) {

  3961       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3962     }

  3963     method = k()->lookup_method(trial_name, signature);

  3964     if (method == NULL) {

  3965       continue; // signature doesn't match, try the next prefix

  3966     }

  3967     if (method->is_native()) {

  3968       method->set_is_prefixed_native();

  3969       return method; // wahoo, we found a prefixed version of the method, return it

  3970     }

  3971     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3972     name_len = trial_len;

  3973     name_str = trial_name_str;

  3974   }

  3975 #endif // INCLUDE_JVMTI

  3976   return NULL; // not found

  3977 }

  3979 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3980   Method* method = k()->lookup_method(name, signature);

  3981   if (method == NULL) {

  3982     ResourceMark rm;

  3983     stringStream st;

  3984     st.print("Method %s name or signature does not match",

  3985              Method::name_and_sig_as_C_string(k(), name, signature));

  3986     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3987   }

  3988   if (!method->is_native()) {

  3989     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  3990     method = find_prefixed_native(k, name, signature, THREAD);

  3991     if (method == NULL) {

  3992       ResourceMark rm;

  3993       stringStream st;

  3994       st.print("Method %s is not declared as native",

  3995                Method::name_and_sig_as_C_string(k(), name, signature));

  3996       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3997     }

  3998   }

  4000   if (entry != NULL) {

  4001     method->set_native_function(entry,

  4002       Method::native_bind_event_is_interesting);

  4003   } else {

  4004     method->clear_native_function();

  4005   }

  4006   if (PrintJNIResolving) {

  4007     ResourceMark rm(THREAD);

  4008     tty->print_cr("[Registering JNI native method %s.%s]",

  4009       method->method_holder()->external_name(),

  4010       method->name()->as_C_string());

  4011   }

  4012   return true;

  4013 }

  4015 #ifndef USDT2

  4016 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4017 #else /* USDT2 */

  4018 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4019                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4020 #endif /* USDT2 */

  4022 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4023                                     const JNINativeMethod *methods,

  4024                                     jint nMethods))

  4025   JNIWrapper("RegisterNatives");

  4026 #ifndef USDT2

  4027   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4028 #else /* USDT2 */

  4029   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4030                                     env, clazz, (void *) methods, nMethods);

  4031 #endif /* USDT2 */

  4032   jint ret = 0;

  4033   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4035   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4037   for (int index = 0; index < nMethods; index++) {

  4038     const char* meth_name = methods[index].name;

  4039     const char* meth_sig = methods[index].signature;

  4040     int meth_name_len = (int)strlen(meth_name);

  4042     // The class should have been loaded (we have an instance of the class

  4043     // passed in) so the method and signature should already be in the symbol

  4044     // table.  If they're not there, the method doesn't exist.

  4045     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4046     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4048     if (name == NULL || signature == NULL) {

  4049       ResourceMark rm;

  4050       stringStream st;

  4051       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4052       // Must return negative value on failure

  4053       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4054     }

  4056     bool res = register_native(h_k, name, signature,

  4057                                (address) methods[index].fnPtr, THREAD);

  4058     if (!res) {

  4059       ret = -1;

  4060       break;

  4061     }

  4062   }

  4063   return ret;

  4064 JNI_END

  4067 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4068   JNIWrapper("UnregisterNatives");

  4069 #ifndef USDT2

  4070   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4071 #else /* USDT2 */

  4072  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4073                                      env, clazz);

  4074 #endif /* USDT2 */

  4075   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4076   //%note jni_2

  4077   if (k->oop_is_instance()) {

  4078     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4079       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4080       if (m->is_native()) {

  4081         m->clear_native_function();

  4082         m->set_signature_handler(NULL);

  4083       }

  4084     }

  4085   }

  4086 #ifndef USDT2

  4087   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4088 #else /* USDT2 */

  4089  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4090                                       0);

  4091 #endif /* USDT2 */

  4092   return 0;

  4093 JNI_END

  4095 //

  4096 // Monitor functions

  4097 //

  4099 #ifndef USDT2

  4100 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4101 #else /* USDT2 */

  4102 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4103                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4104 #endif /* USDT2 */

  4106 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4107 #ifndef USDT2

  4108   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4109 #else /* USDT2 */

  4110  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4111                                 env, jobj);

  4112 #endif /* USDT2 */

  4113   jint ret = JNI_ERR;

  4114   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4116   // If the object is null, we can't do anything with it

  4117   if (jobj == NULL) {

  4118     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4119   }

  4121   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4122   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4123   ret = JNI_OK;

  4124   return ret;

  4125 JNI_END

  4127 #ifndef USDT2

  4128 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4129 #else /* USDT2 */

  4130 DT_RETURN_MARK_DECL(MonitorExit, jint

  4131                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4132 #endif /* USDT2 */

  4134 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4135 #ifndef USDT2

  4136   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4137 #else /* USDT2 */

  4138  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4139                                env, jobj);

  4140 #endif /* USDT2 */

  4141   jint ret = JNI_ERR;

  4142   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4144   // Don't do anything with a null object

  4145   if (jobj == NULL) {

  4146     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4147   }

  4149   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4150   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4152   ret = JNI_OK;

  4153   return ret;

  4154 JNI_END

  4156 //

  4157 // Extensions

  4158 //

  4160 #ifndef USDT2

  4161 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4162 #else /* USDT2 */

  4163 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4164                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4165 #endif /* USDT2 */

  4167 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4168   JNIWrapper("GetStringRegion");

  4169 #ifndef USDT2

  4170   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4171 #else /* USDT2 */

  4172  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4173                                    env, string, start, len, buf);

  4174 #endif /* USDT2 */

  4175   DT_VOID_RETURN_MARK(GetStringRegion);

  4176   oop s = JNIHandles::resolve_non_null(string);

  4177   int s_len = java_lang_String::length(s);

  4178   if (start < 0 || len < 0 || start + len > s_len) {

  4179     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4180   } else {

  4181     if (len > 0) {

  4182       int s_offset = java_lang_String::offset(s);

  4183       typeArrayOop s_value = java_lang_String::value(s);

  4184       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4185     }

  4186   }

  4187 JNI_END

  4189 #ifndef USDT2

  4190 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4191 #else /* USDT2 */

  4192 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4193                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4194 #endif /* USDT2 */

  4196 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4197   JNIWrapper("GetStringUTFRegion");

  4198 #ifndef USDT2

  4199   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4200 #else /* USDT2 */

  4201  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4202                                       env, string, start, len, buf);

  4203 #endif /* USDT2 */

  4204   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4205   oop s = JNIHandles::resolve_non_null(string);

  4206   int s_len = java_lang_String::length(s);

  4207   if (start < 0 || len < 0 || start + len > s_len) {

  4208     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4209   } else {

  4210     //%note jni_7

  4211     if (len > 0) {

  4212       ResourceMark rm(THREAD);

  4213       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4214       int utf_len = (int)strlen(utf_region);

  4215       memcpy(buf, utf_region, utf_len);

  4216       buf[utf_len] = 0;

  4217     } else {

  4218       // JDK null-terminates the buffer even in len is zero

  4219       if (buf != NULL) {

  4220         buf[0] = 0;

  4221       }

  4222     }

  4223   }

  4224 JNI_END

  4227 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4228   JNIWrapper("GetPrimitiveArrayCritical");

  4229 #ifndef USDT2

  4230   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4231 #else /* USDT2 */

  4232  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4233                                              env, array, (uintptr_t *) isCopy);

  4234 #endif /* USDT2 */

  4235   GC_locker::lock_critical(thread);

  4236   if (isCopy != NULL) {

  4237     *isCopy = JNI_FALSE;

  4238   }

  4239   oop a = JNIHandles::resolve_non_null(array);

  4240   assert(a->is_array(), "just checking");

  4241   BasicType type;

  4242   if (a->is_objArray()) {

  4243     type = T_OBJECT;

  4244   } else {

  4245     type = TypeArrayKlass::cast(a->klass())->element_type();

  4246   }

  4247   void* ret = arrayOop(a)->base(type);

  4248 #ifndef USDT2

  4249   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4250 #else /* USDT2 */

  4251  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4252                                               ret);

  4253 #endif /* USDT2 */

  4254   return ret;

  4255 JNI_END

  4258 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4259   JNIWrapper("ReleasePrimitiveArrayCritical");

  4260 #ifndef USDT2

  4261   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4262 #else /* USDT2 */

  4263   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4264                                                   env, array, carray, mode);

  4265 #endif /* USDT2 */

  4266   // The array, carray and mode arguments are ignored

  4267   GC_locker::unlock_critical(thread);

  4268 #ifndef USDT2

  4269   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4270 #else /* USDT2 */

  4271 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4272 );

  4273 #endif /* USDT2 */

  4274 JNI_END

  4277 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4278   JNIWrapper("GetStringCritical");

  4279 #ifndef USDT2

  4280   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4281 #else /* USDT2 */

  4282   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4283                                       env, string, (uintptr_t *) isCopy);

  4284 #endif /* USDT2 */

  4285   GC_locker::lock_critical(thread);

  4286   if (isCopy != NULL) {

  4287     *isCopy = JNI_FALSE;

  4288   }

  4289   oop s = JNIHandles::resolve_non_null(string);

  4290   int s_len = java_lang_String::length(s);

  4291   typeArrayOop s_value = java_lang_String::value(s);

  4292   int s_offset = java_lang_String::offset(s);

  4293   const jchar* ret;

  4294   if (s_len > 0) {

  4295     ret = s_value->char_at_addr(s_offset);

  4296   } else {

  4297     ret = (jchar*) s_value->base(T_CHAR);

  4298   }

  4299 #ifndef USDT2

  4300   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4301 #else /* USDT2 */

  4302  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4303                                       (uint16_t *) ret);

  4304 #endif /* USDT2 */

  4305   return ret;

  4306 JNI_END

  4309 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4310   JNIWrapper("ReleaseStringCritical");

  4311 #ifndef USDT2

  4312   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4313 #else /* USDT2 */

  4314   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4315                                           env, str, (uint16_t *) chars);

  4316 #endif /* USDT2 */

  4317   // The str and chars arguments are ignored

  4318   GC_locker::unlock_critical(thread);

  4319 #ifndef USDT2

  4320   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4321 #else /* USDT2 */

  4322 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4323 );

  4324 #endif /* USDT2 */

  4325 JNI_END

  4328 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4329   JNIWrapper("jni_NewWeakGlobalRef");

  4330 #ifndef USDT2

  4331   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4332 #else /* USDT2 */

  4333  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4334                                     env, ref);

  4335 #endif /* USDT2 */

  4336   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4337   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4338 #ifndef USDT2

  4339   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4340 #else /* USDT2 */

  4341  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4342                                      ret);

  4343 #endif /* USDT2 */

  4344   return ret;

  4345 JNI_END

  4347 // Must be JNI_ENTRY (with HandleMark)

  4348 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4349   JNIWrapper("jni_DeleteWeakGlobalRef");

  4350 #ifndef USDT2

  4351   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4352 #else /* USDT2 */

  4353   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4354                                         env, ref);

  4355 #endif /* USDT2 */

  4356   JNIHandles::destroy_weak_global(ref);

  4357 #ifndef USDT2

  4358   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4359 #else /* USDT2 */

  4360   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4361                                          );

  4362 #endif /* USDT2 */

  4363 JNI_END

  4366 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4367   JNIWrapper("jni_ExceptionCheck");

  4368 #ifndef USDT2

  4369   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4370 #else /* USDT2 */

  4371  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4372                                   env);

  4373 #endif /* USDT2 */

  4374   jni_check_async_exceptions(thread);

  4375   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4376 #ifndef USDT2

  4377   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4378 #else /* USDT2 */

  4379  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4380                                    ret);

  4381 #endif /* USDT2 */

  4382   return ret;

  4383 JNI_END

  4386 // Initialization state for three routines below relating to

  4387 // java.nio.DirectBuffers

  4388 static          jint directBufferSupportInitializeStarted = 0;

  4389 static volatile jint directBufferSupportInitializeEnded   = 0;

  4390 static volatile jint directBufferSupportInitializeFailed  = 0;

  4391 static jclass    bufferClass                 = NULL;

  4392 static jclass    directBufferClass           = NULL;

  4393 static jclass    directByteBufferClass       = NULL;

  4394 static jmethodID directByteBufferConstructor = NULL;

  4395 static jfieldID  directBufferAddressField    = NULL;

  4396 static jfieldID  bufferCapacityField         = NULL;

  4398 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4399   Handle loader;            // null (bootstrap) loader

  4400   Handle protection_domain; // null protection domain

  4402   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4403   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4405   if (TraceClassResolution && result != NULL) {

  4406     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4407   }

  4408   return result;

  4409 }

  4411 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4412 // circumvent any security checks that would be done by jni_FindClass.

  4413 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4414 {

  4415   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4416   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4417   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4418   return true;

  4419 }

  4420 JNI_END

  4423 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4424   if (directBufferSupportInitializeFailed) {

  4425     return false;

  4426   }

  4428   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4429     if (!lookupDirectBufferClasses(env)) {

  4430       directBufferSupportInitializeFailed = 1;

  4431       return false;

  4432     }

  4434     // Make global references for these

  4435     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4436     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4437     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4439     // Get needed field and method IDs

  4440     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4441     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4442     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4444     if ((directByteBufferConstructor == NULL) ||

  4445         (directBufferAddressField    == NULL) ||

  4446         (bufferCapacityField         == NULL)) {

  4447       directBufferSupportInitializeFailed = 1;

  4448       return false;

  4449     }

  4451     directBufferSupportInitializeEnded = 1;

  4452   } else {

  4453     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4454       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4455       // os::sleep which requires the VM state transition. On other platforms, it

  4456       // is not necessary. The following call to change the VM state is purposely

  4457       // put inside the loop to avoid potential deadlock when multiple threads

  4458       // try to call this method. See 6791815 for more details.

  4459       ThreadInVMfromNative tivn(thread);

  4460       os::yield_all();

  4461     }

  4462   }

  4464   return !directBufferSupportInitializeFailed;

  4465 }

  4467 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4468 {

  4469   // thread_from_jni_environment() will block if VM is gone.

  4470   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4472   JNIWrapper("jni_NewDirectByteBuffer");

  4473 #ifndef USDT2

  4474   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4475 #else /* USDT2 */

  4476  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4477                                        env, address, capacity);

  4478 #endif /* USDT2 */

  4480   if (!directBufferSupportInitializeEnded) {

  4481     if (!initializeDirectBufferSupport(env, thread)) {

  4482 #ifndef USDT2

  4483       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4484 #else /* USDT2 */

  4485       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4486                                              NULL);

  4487 #endif /* USDT2 */

  4488       return NULL;

  4489     }

  4490   }

  4492   // Being paranoid about accidental sign extension on address

  4493   jlong addr = (jlong) ((uintptr_t) address);

  4494   // NOTE that package-private DirectByteBuffer constructor currently

  4495   // takes int capacity

  4496   jint  cap  = (jint)  capacity;

  4497   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4498 #ifndef USDT2

  4499   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4500 #else /* USDT2 */

  4501   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4502                                          ret);

  4503 #endif /* USDT2 */

  4504   return ret;

  4505 }

  4507 #ifndef USDT2

  4508 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4509 #else /* USDT2 */

  4510 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4511                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4512 #endif /* USDT2 */

  4514 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4515 {

  4516   // thread_from_jni_environment() will block if VM is gone.

  4517   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4519   JNIWrapper("jni_GetDirectBufferAddress");

  4520 #ifndef USDT2

  4521   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4522 #else /* USDT2 */

  4523   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4524                                            env, buf);

  4525 #endif /* USDT2 */

  4526   void* ret = NULL;

  4527   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4529   if (!directBufferSupportInitializeEnded) {

  4530     if (!initializeDirectBufferSupport(env, thread)) {

  4531       return 0;

  4532     }

  4533   }

  4535   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4536     return 0;

  4537   }

  4539   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4540   return ret;

  4541 }

  4543 #ifndef USDT2

  4544 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4545 #else /* USDT2 */

  4546 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4547                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4548 #endif /* USDT2 */

  4550 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4551 {

  4552   // thread_from_jni_environment() will block if VM is gone.

  4553   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4555   JNIWrapper("jni_GetDirectBufferCapacity");

  4556 #ifndef USDT2

  4557   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4558 #else /* USDT2 */

  4559   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4560                                             env, buf);

  4561 #endif /* USDT2 */

  4562   jlong ret = -1;

  4563   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4565   if (!directBufferSupportInitializeEnded) {

  4566     if (!initializeDirectBufferSupport(env, thread)) {

  4567       ret = 0;

  4568       return ret;

  4569     }

  4570   }

  4572   if (buf == NULL) {

  4573     return -1;

  4574   }

  4576   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4577     return -1;

  4578   }

  4580   // NOTE that capacity is currently an int in the implementation

  4581   ret = env->GetIntField(buf, bufferCapacityField);

  4582   return ret;

  4583 }

  4586 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4587   JNIWrapper("GetVersion");

  4588 #ifndef USDT2

  4589   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4590 #else /* USDT2 */

  4591   HOTSPOT_JNI_GETVERSION_ENTRY(

  4592                                env);

  4593 #endif /* USDT2 */

  4594 #ifndef USDT2

  4595   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4596 #else /* USDT2 */

  4597   HOTSPOT_JNI_GETVERSION_RETURN(

  4598                                 CurrentVersion);

  4599 #endif /* USDT2 */

  4600   return CurrentVersion;

  4601 JNI_END

  4603 extern struct JavaVM_ main_vm;

  4605 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4606   JNIWrapper("jni_GetJavaVM");

  4607 #ifndef USDT2

  4608   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4609 #else /* USDT2 */

  4610   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4611                               env, (void **) vm);

  4612 #endif /* USDT2 */

  4613   *vm  = (JavaVM *)(&main_vm);

  4614 #ifndef USDT2

  4615   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4616 #else /* USDT2 */

  4617   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4618                                JNI_OK);

  4619 #endif /* USDT2 */

  4620   return JNI_OK;

  4621 JNI_END

  4623 // Structure containing all jni functions

  4624 struct JNINativeInterface_ jni_NativeInterface = {

  4625     NULL,

  4626     NULL,

  4627     NULL,

  4629     NULL,

  4631     jni_GetVersion,

  4633     jni_DefineClass,

  4634     jni_FindClass,

  4636     jni_FromReflectedMethod,

  4637     jni_FromReflectedField,

  4639     jni_ToReflectedMethod,

  4641     jni_GetSuperclass,

  4642     jni_IsAssignableFrom,

  4644     jni_ToReflectedField,

  4646     jni_Throw,

  4647     jni_ThrowNew,

  4648     jni_ExceptionOccurred,

  4649     jni_ExceptionDescribe,

  4650     jni_ExceptionClear,

  4651     jni_FatalError,

  4653     jni_PushLocalFrame,

  4654     jni_PopLocalFrame,

  4656     jni_NewGlobalRef,

  4657     jni_DeleteGlobalRef,

  4658     jni_DeleteLocalRef,

  4659     jni_IsSameObject,

  4661     jni_NewLocalRef,

  4662     jni_EnsureLocalCapacity,

  4664     jni_AllocObject,

  4665     jni_NewObject,

  4666     jni_NewObjectV,

  4667     jni_NewObjectA,

  4669     jni_GetObjectClass,

  4670     jni_IsInstanceOf,

  4672     jni_GetMethodID,

  4674     jni_CallObjectMethod,

  4675     jni_CallObjectMethodV,

  4676     jni_CallObjectMethodA,

  4677     jni_CallBooleanMethod,

  4678     jni_CallBooleanMethodV,

  4679     jni_CallBooleanMethodA,

  4680     jni_CallByteMethod,

  4681     jni_CallByteMethodV,

  4682     jni_CallByteMethodA,

  4683     jni_CallCharMethod,

  4684     jni_CallCharMethodV,

  4685     jni_CallCharMethodA,

  4686     jni_CallShortMethod,

  4687     jni_CallShortMethodV,

  4688     jni_CallShortMethodA,

  4689     jni_CallIntMethod,

  4690     jni_CallIntMethodV,

  4691     jni_CallIntMethodA,

  4692     jni_CallLongMethod,

  4693     jni_CallLongMethodV,

  4694     jni_CallLongMethodA,

  4695     jni_CallFloatMethod,

  4696     jni_CallFloatMethodV,

  4697     jni_CallFloatMethodA,

  4698     jni_CallDoubleMethod,

  4699     jni_CallDoubleMethodV,

  4700     jni_CallDoubleMethodA,

  4701     jni_CallVoidMethod,

  4702     jni_CallVoidMethodV,

  4703     jni_CallVoidMethodA,

  4705     jni_CallNonvirtualObjectMethod,

  4706     jni_CallNonvirtualObjectMethodV,

  4707     jni_CallNonvirtualObjectMethodA,

  4708     jni_CallNonvirtualBooleanMethod,

  4709     jni_CallNonvirtualBooleanMethodV,

  4710     jni_CallNonvirtualBooleanMethodA,

  4711     jni_CallNonvirtualByteMethod,

  4712     jni_CallNonvirtualByteMethodV,

  4713     jni_CallNonvirtualByteMethodA,

  4714     jni_CallNonvirtualCharMethod,

  4715     jni_CallNonvirtualCharMethodV,

  4716     jni_CallNonvirtualCharMethodA,

  4717     jni_CallNonvirtualShortMethod,

  4718     jni_CallNonvirtualShortMethodV,

  4719     jni_CallNonvirtualShortMethodA,

  4720     jni_CallNonvirtualIntMethod,

  4721     jni_CallNonvirtualIntMethodV,

  4722     jni_CallNonvirtualIntMethodA,

  4723     jni_CallNonvirtualLongMethod,

  4724     jni_CallNonvirtualLongMethodV,

  4725     jni_CallNonvirtualLongMethodA,

  4726     jni_CallNonvirtualFloatMethod,

  4727     jni_CallNonvirtualFloatMethodV,

  4728     jni_CallNonvirtualFloatMethodA,

  4729     jni_CallNonvirtualDoubleMethod,

  4730     jni_CallNonvirtualDoubleMethodV,

  4731     jni_CallNonvirtualDoubleMethodA,

  4732     jni_CallNonvirtualVoidMethod,

  4733     jni_CallNonvirtualVoidMethodV,

  4734     jni_CallNonvirtualVoidMethodA,

  4736     jni_GetFieldID,

  4738     jni_GetObjectField,

  4739     jni_GetBooleanField,

  4740     jni_GetByteField,

  4741     jni_GetCharField,

  4742     jni_GetShortField,

  4743     jni_GetIntField,

  4744     jni_GetLongField,

  4745     jni_GetFloatField,

  4746     jni_GetDoubleField,

  4748     jni_SetObjectField,

  4749     jni_SetBooleanField,

  4750     jni_SetByteField,

  4751     jni_SetCharField,

  4752     jni_SetShortField,

  4753     jni_SetIntField,

  4754     jni_SetLongField,

  4755     jni_SetFloatField,

  4756     jni_SetDoubleField,

  4758     jni_GetStaticMethodID,

  4760     jni_CallStaticObjectMethod,

  4761     jni_CallStaticObjectMethodV,

  4762     jni_CallStaticObjectMethodA,

  4763     jni_CallStaticBooleanMethod,

  4764     jni_CallStaticBooleanMethodV,

  4765     jni_CallStaticBooleanMethodA,

  4766     jni_CallStaticByteMethod,

  4767     jni_CallStaticByteMethodV,

  4768     jni_CallStaticByteMethodA,

  4769     jni_CallStaticCharMethod,

  4770     jni_CallStaticCharMethodV,

  4771     jni_CallStaticCharMethodA,

  4772     jni_CallStaticShortMethod,

  4773     jni_CallStaticShortMethodV,

  4774     jni_CallStaticShortMethodA,

  4775     jni_CallStaticIntMethod,

  4776     jni_CallStaticIntMethodV,

  4777     jni_CallStaticIntMethodA,

  4778     jni_CallStaticLongMethod,

  4779     jni_CallStaticLongMethodV,

  4780     jni_CallStaticLongMethodA,

  4781     jni_CallStaticFloatMethod,

  4782     jni_CallStaticFloatMethodV,

  4783     jni_CallStaticFloatMethodA,

  4784     jni_CallStaticDoubleMethod,

  4785     jni_CallStaticDoubleMethodV,

  4786     jni_CallStaticDoubleMethodA,

  4787     jni_CallStaticVoidMethod,

  4788     jni_CallStaticVoidMethodV,

  4789     jni_CallStaticVoidMethodA,

  4791     jni_GetStaticFieldID,

  4793     jni_GetStaticObjectField,

  4794     jni_GetStaticBooleanField,

  4795     jni_GetStaticByteField,

  4796     jni_GetStaticCharField,

  4797     jni_GetStaticShortField,

  4798     jni_GetStaticIntField,

  4799     jni_GetStaticLongField,

  4800     jni_GetStaticFloatField,

  4801     jni_GetStaticDoubleField,

  4803     jni_SetStaticObjectField,

  4804     jni_SetStaticBooleanField,

  4805     jni_SetStaticByteField,

  4806     jni_SetStaticCharField,

  4807     jni_SetStaticShortField,

  4808     jni_SetStaticIntField,

  4809     jni_SetStaticLongField,

  4810     jni_SetStaticFloatField,

  4811     jni_SetStaticDoubleField,

  4813     jni_NewString,

  4814     jni_GetStringLength,

  4815     jni_GetStringChars,

  4816     jni_ReleaseStringChars,

  4818     jni_NewStringUTF,

  4819     jni_GetStringUTFLength,

  4820     jni_GetStringUTFChars,

  4821     jni_ReleaseStringUTFChars,

  4823     jni_GetArrayLength,

  4825     jni_NewObjectArray,

  4826     jni_GetObjectArrayElement,

  4827     jni_SetObjectArrayElement,

  4829     jni_NewBooleanArray,

  4830     jni_NewByteArray,

  4831     jni_NewCharArray,

  4832     jni_NewShortArray,

  4833     jni_NewIntArray,

  4834     jni_NewLongArray,

  4835     jni_NewFloatArray,

  4836     jni_NewDoubleArray,

  4838     jni_GetBooleanArrayElements,

  4839     jni_GetByteArrayElements,

  4840     jni_GetCharArrayElements,

  4841     jni_GetShortArrayElements,

  4842     jni_GetIntArrayElements,

  4843     jni_GetLongArrayElements,

  4844     jni_GetFloatArrayElements,

  4845     jni_GetDoubleArrayElements,

  4847     jni_ReleaseBooleanArrayElements,

  4848     jni_ReleaseByteArrayElements,

  4849     jni_ReleaseCharArrayElements,

  4850     jni_ReleaseShortArrayElements,

  4851     jni_ReleaseIntArrayElements,

  4852     jni_ReleaseLongArrayElements,

  4853     jni_ReleaseFloatArrayElements,

  4854     jni_ReleaseDoubleArrayElements,

  4856     jni_GetBooleanArrayRegion,

  4857     jni_GetByteArrayRegion,

  4858     jni_GetCharArrayRegion,

  4859     jni_GetShortArrayRegion,

  4860     jni_GetIntArrayRegion,

  4861     jni_GetLongArrayRegion,

  4862     jni_GetFloatArrayRegion,

  4863     jni_GetDoubleArrayRegion,

  4865     jni_SetBooleanArrayRegion,

  4866     jni_SetByteArrayRegion,

  4867     jni_SetCharArrayRegion,

  4868     jni_SetShortArrayRegion,

  4869     jni_SetIntArrayRegion,

  4870     jni_SetLongArrayRegion,

  4871     jni_SetFloatArrayRegion,

  4872     jni_SetDoubleArrayRegion,

  4874     jni_RegisterNatives,

  4875     jni_UnregisterNatives,

  4877     jni_MonitorEnter,

  4878     jni_MonitorExit,

  4880     jni_GetJavaVM,

  4882     jni_GetStringRegion,

  4883     jni_GetStringUTFRegion,

  4885     jni_GetPrimitiveArrayCritical,

  4886     jni_ReleasePrimitiveArrayCritical,

  4888     jni_GetStringCritical,

  4889     jni_ReleaseStringCritical,

  4891     jni_NewWeakGlobalRef,

  4892     jni_DeleteWeakGlobalRef,

  4894     jni_ExceptionCheck,

  4896     jni_NewDirectByteBuffer,

  4897     jni_GetDirectBufferAddress,

  4898     jni_GetDirectBufferCapacity,

  4900     // New 1_6 features

  4902     jni_GetObjectRefType

  4903 };

  4906 // For jvmti use to modify jni function table.

  4907 // Java threads in native contiues to run until it is transitioned

  4908 // to VM at safepoint. Before the transition or before it is blocked

  4909 // for safepoint it may access jni function table. VM could crash if

  4910 // any java thread access the jni function table in the middle of memcpy.

  4911 // To avoid this each function pointers are copied automically.

  4912 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4913   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4914   intptr_t *a = (intptr_t *) jni_functions();

  4915   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4916   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4917     Atomic::store_ptr(*b++, a++);

  4918   }

  4919 }

  4921 void quicken_jni_functions() {

  4922   // Replace Get<Primitive>Field with fast versions

  4923   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4924       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4925 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4926       // windows x86 currently needs SEH wrapper and the gain of the fast

  4927       // versions currently isn't certain for server vm on uniprocessor.

  4928       && os::is_MP()

  4929 #endif

  4930   ) {

  4931     address func;

  4932     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4933     if (func != (address)-1) {

  4934       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4935     }

  4936     func = JNI_FastGetField::generate_fast_get_byte_field();

  4937     if (func != (address)-1) {

  4938       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4939     }

  4940     func = JNI_FastGetField::generate_fast_get_char_field();

  4941     if (func != (address)-1) {

  4942       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4943     }

  4944     func = JNI_FastGetField::generate_fast_get_short_field();

  4945     if (func != (address)-1) {

  4946       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4947     }

  4948     func = JNI_FastGetField::generate_fast_get_int_field();

  4949     if (func != (address)-1) {

  4950       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4951     }

  4952     func = JNI_FastGetField::generate_fast_get_long_field();

  4953     if (func != (address)-1) {

  4954       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4955     }

  4956     func = JNI_FastGetField::generate_fast_get_float_field();

  4957     if (func != (address)-1) {

  4958       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4959     }

  4960     func = JNI_FastGetField::generate_fast_get_double_field();

  4961     if (func != (address)-1) {

  4962       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4963     }

  4964   }

  4965 }

  4967 // Returns the function structure

  4968 struct JNINativeInterface_* jni_functions() {

  4969 #if INCLUDE_JNI_CHECK

  4970   if (CheckJNICalls) return jni_functions_check();

  4971 #endif // INCLUDE_JNI_CHECK

  4972   return &jni_NativeInterface;

  4973 }

  4975 // Returns the function structure

  4976 struct JNINativeInterface_* jni_functions_nocheck() {

  4977   return &jni_NativeInterface;

  4978 }

  4981 // Invocation API

  4984 // Forward declaration

  4985 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  4987 // Global invocation API vars

  4988 volatile jint vm_created = 0;

  4989 // Indicate whether it is safe to recreate VM

  4990 volatile jint safe_to_recreate_vm = 1;

  4991 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  4994 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  4995 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  4997 #ifndef USDT2

  4998 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  4999 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5000 #else /* USDT2 */

  5001 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5002                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5003 #endif /* USDT2 */

  5005 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5006 #ifndef USDT2

  5007   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5008 #else /* USDT2 */

  5009   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5010                                              args_);

  5011 #endif /* USDT2 */

  5012   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5013   jint ret = JNI_ERR;

  5014   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5016   if (Threads::is_supported_jni_version(args->version)) {

  5017     ret = JNI_OK;

  5018   }

  5019   // 1.1 style no longer supported in hotspot.

  5020   // According the JNI spec, we should update args->version on return.

  5021   // We also use the structure to communicate with launcher about default

  5022   // stack size.

  5023   if (args->version == JNI_VERSION_1_1) {

  5024     args->version = JNI_VERSION_1_2;

  5025     // javaStackSize is int in arguments structure

  5026     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5027     args->javaStackSize = (jint)(ThreadStackSize * K);

  5028   }

  5029   return ret;

  5030 }

  5032 #ifndef PRODUCT

  5034 #include "gc_implementation/shared/gcTimer.hpp"

  5035 #include "gc_interface/collectedHeap.hpp"

  5036 #if INCLUDE_ALL_GCS

  5037 #include "gc_implementation/g1/heapRegionRemSet.hpp"

  5038 #endif

  5039 #include "utilities/quickSort.hpp"

  5040 #if INCLUDE_VM_STRUCTS

  5041 #include "runtime/vmStructs.hpp"

  5042 #endif

  5044 #define run_unit_test(unit_test_function_call)              \

  5045   tty->print_cr("Running test: " #unit_test_function_call); \

  5046   unit_test_function_call

  5048 // Forward declaration

  5049 void TestReservedSpace_test();

  5050 void TestReserveMemorySpecial_test();

  5052 void execute_internal_vm_tests() {

  5053   if (ExecuteInternalVMTests) {

  5054     tty->print_cr("Running internal VM tests");

  5055     run_unit_test(TestReservedSpace_test());

  5056     run_unit_test(TestReserveMemorySpecial_test());

  5057     run_unit_test(GlobalDefinitions::test_globals());

  5058     run_unit_test(GCTimerAllTest::all());

  5059     run_unit_test(arrayOopDesc::test_max_array_length());

  5060     run_unit_test(CollectedHeap::test_is_in());

  5061     run_unit_test(QuickSort::test_quick_sort());

  5062     run_unit_test(AltHashing::test_alt_hash());

  5063 #if INCLUDE_VM_STRUCTS

  5064     run_unit_test(VMStructs::test());

  5065 #endif

  5066 #if INCLUDE_ALL_GCS

  5067     run_unit_test(HeapRegionRemSet::test_prt());

  5068 #endif

  5069     tty->print_cr("All internal VM tests passed");

  5070   }

  5071 }

  5073 #undef run_unit_test

  5075 #endif

  5077 #ifndef USDT2

  5078 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5079 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5080 #else /* USDT2 */

  5081 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5082                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5083 #endif /* USDT2 */

  5085 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5086 #ifndef USDT2

  5087   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5088 #else /* USDT2 */

  5089   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5090                                  (void **) vm, penv, args);

  5091 #endif /* USDT2 */

  5093   jint result = JNI_ERR;

  5094   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5096   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5097   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5098   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5099   // on all architectures.  So we check it works before relying on it.

  5100 #if defined(ZERO) && defined(ASSERT)

  5101   {

  5102     jint a = 0xcafebabe;

  5103     jint b = Atomic::xchg(0xdeadbeef, &a);

  5104     void *c = &a;

  5105     void *d = Atomic::xchg_ptr(&b, &c);

  5106     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5107     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5108   }

  5109 #endif // ZERO && ASSERT

  5111   // At the moment it's only possible to have one Java VM,

  5112   // since some of the runtime state is in global variables.

  5114   // We cannot use our mutex locks here, since they only work on

  5115   // Threads. We do an atomic compare and exchange to ensure only

  5116   // one thread can call this method at a time

  5118   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5119   // the add/dec implementations are dependent on whether we are running

  5120   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5121   // function used to determine this will always return false. Atomic::xchg

  5122   // does not have this problem.

  5123   if (Atomic::xchg(1, &vm_created) == 1) {

  5124     return JNI_EEXIST;   // already created, or create attempt in progress

  5125   }

  5126   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5127     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5128   }

  5130   assert(vm_created == 1, "vm_created is true during the creation");

  5132   /**

  5133    * Certain errors during initialization are recoverable and do not

  5134    * prevent this method from being called again at a later time

  5135    * (perhaps with different arguments).  However, at a certain

  5136    * point during initialization if an error occurs we cannot allow

  5137    * this function to be called again (or it will crash).  In those

  5138    * situations, the 'canTryAgain' flag is set to false, which atomically

  5139    * sets safe_to_recreate_vm to 1, such that any new call to

  5140    * JNI_CreateJavaVM will immediately fail using the above logic.

  5141    */

  5142   bool can_try_again = true;

  5144   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5145   if (result == JNI_OK) {

  5146     JavaThread *thread = JavaThread::current();

  5147     /* thread is thread_in_vm here */

  5148     *vm = (JavaVM *)(&main_vm);

  5149     *(JNIEnv**)penv = thread->jni_environment();

  5151     // Tracks the time application was running before GC

  5152     RuntimeService::record_application_start();

  5154     // Notify JVMTI

  5155     if (JvmtiExport::should_post_thread_life()) {

  5156        JvmtiExport::post_thread_start(thread);

  5157     }

  5159     EventThreadStart event;

  5160     if (event.should_commit()) {

  5161       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5162       event.commit();

  5163     }

  5165 #ifndef PRODUCT

  5166   #ifndef TARGET_OS_FAMILY_windows

  5167     #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()

  5168   #endif

  5170     // Check if we should compile all classes on bootclasspath

  5171     if (CompileTheWorld) ClassLoader::compile_the_world();

  5172     if (ReplayCompiles) ciReplay::replay(thread);

  5174     // Some platforms (like Win*) need a wrapper around these test

  5175     // functions in order to properly handle error conditions.

  5176     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);

  5177     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);

  5178 #endif

  5180     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5181     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5182   } else {

  5183     if (can_try_again) {

  5184       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5185       safe_to_recreate_vm = 1;

  5186     }

  5188     // Creation failed. We must reset vm_created

  5189     *vm = 0;

  5190     *(JNIEnv**)penv = 0;

  5191     // reset vm_created last to avoid race condition. Use OrderAccess to

  5192     // control both compiler and architectural-based reordering.

  5193     OrderAccess::release_store(&vm_created, 0);

  5194   }

  5196   return result;

  5197 }

  5199 #ifndef USDT2

  5200 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5201   JavaVM**, jsize, jsize*);

  5202 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5203 #endif /* !USDT2 */

  5205 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5206   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5207   // JNIWrapper("GetCreatedJavaVMs");

  5208 #ifndef USDT2

  5209   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5210     vm_buf, bufLen, numVMs);

  5211 #else /* USDT2 */

  5212   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5213                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5214 #endif /* USDT2 */

  5215   if (vm_created) {

  5216     if (numVMs != NULL) *numVMs = 1;

  5217     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5218   } else {

  5219     if (numVMs != NULL) *numVMs = 0;

  5220   }

  5221 #ifndef USDT2

  5222   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5223 #else /* USDT2 */

  5224   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5225                                     JNI_OK);

  5226 #endif /* USDT2 */

  5227   return JNI_OK;

  5228 }

  5230 extern "C" {

  5232 #ifndef USDT2

  5233 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5234 #else /* USDT2 */

  5235 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5236                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5237 #endif /* USDT2 */

  5239 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5240 #ifndef USDT2

  5241   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5242 #else /* USDT2 */

  5243   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5244                                   vm);

  5245 #endif /* USDT2 */

  5246   jint res = JNI_ERR;

  5247   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5249   if (!vm_created) {

  5250     res = JNI_ERR;

  5251     return res;

  5252   }

  5254   JNIWrapper("DestroyJavaVM");

  5255   JNIEnv *env;

  5256   JavaVMAttachArgs destroyargs;

  5257   destroyargs.version = CurrentVersion;

  5258   destroyargs.name = (char *)"DestroyJavaVM";

  5259   destroyargs.group = NULL;

  5260   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5261   if (res != JNI_OK) {

  5262     return res;

  5263   }

  5265   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5266   JavaThread* thread = JavaThread::current();

  5267   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5268   if (Threads::destroy_vm()) {

  5269     // Should not change thread state, VM is gone

  5270     vm_created = false;

  5271     res = JNI_OK;

  5272     return res;

  5273   } else {

  5274     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5275     res = JNI_ERR;

  5276     return res;

  5277   }

  5278 }

  5281 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5282   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5284   // Check below commented out from JDK1.2fcs as well

  5285   /*

  5286   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5287     return JNI_EVERSION;

  5288   }

  5289   */

  5291   Thread* t = ThreadLocalStorage::get_thread_slow();

  5292   if (t != NULL) {

  5293     // If the thread has been attached this operation is a no-op

  5294     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5295     return JNI_OK;

  5296   }

  5298   // Create a thread and mark it as attaching so it will be skipped by the

  5299   // ThreadsListEnumerator - see CR 6404306

  5300   JavaThread* thread = new JavaThread(true);

  5302   // Set correct safepoint info. The thread is going to call into Java when

  5303   // initializing the Java level thread object. Hence, the correct state must

  5304   // be set in order for the Safepoint code to deal with it correctly.

  5305   thread->set_thread_state(_thread_in_vm);

  5306   // Must do this before initialize_thread_local_storage

  5307   thread->record_stack_base_and_size();

  5309   thread->initialize_thread_local_storage();

  5311   if (!os::create_attached_thread(thread)) {

  5312     delete thread;

  5313     return JNI_ERR;

  5314   }

  5315   // Enable stack overflow checks

  5316   thread->create_stack_guard_pages();

  5318   thread->initialize_tlab();

  5320   thread->cache_global_variables();

  5322   // Crucial that we do not have a safepoint check for this thread, since it has

  5323   // not been added to the Thread list yet.

  5324   { Threads_lock->lock_without_safepoint_check();

  5325     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5326     // avoid this thread trying to do a GC before it is added to the thread-list

  5327     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5328     Threads::add(thread, daemon);

  5329     Threads_lock->unlock();

  5330   }

  5331   // Create thread group and name info from attach arguments

  5332   oop group = NULL;

  5333   char* thread_name = NULL;

  5334   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5335     group = JNIHandles::resolve(args->group);

  5336     thread_name = args->name; // may be NULL

  5337   }

  5338   if (group == NULL) group = Universe::main_thread_group();

  5340   // Create Java level thread object and attach it to this thread

  5341   bool attach_failed = false;

  5342   {

  5343     EXCEPTION_MARK;

  5344     HandleMark hm(THREAD);

  5345     Handle thread_group(THREAD, group);

  5346     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5347     if (HAS_PENDING_EXCEPTION) {

  5348       CLEAR_PENDING_EXCEPTION;

  5349       // cleanup outside the handle mark.

  5350       attach_failed = true;

  5351     }

  5352   }

  5354   if (attach_failed) {

  5355     // Added missing cleanup

  5356     thread->cleanup_failed_attach_current_thread();

  5357     return JNI_ERR;

  5358   }

  5360   // mark the thread as no longer attaching

  5361   // this uses a fence to push the change through so we don't have

  5362   // to regrab the threads_lock

  5363   thread->set_done_attaching_via_jni();

  5365   // Set java thread status.

  5366   java_lang_Thread::set_thread_status(thread->threadObj(),

  5367               java_lang_Thread::RUNNABLE);

  5369   // Notify the debugger

  5370   if (JvmtiExport::should_post_thread_life()) {

  5371     JvmtiExport::post_thread_start(thread);

  5372   }

  5374   EventThreadStart event;

  5375   if (event.should_commit()) {

  5376     event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5377     event.commit();

  5378   }

  5380   *(JNIEnv**)penv = thread->jni_environment();

  5382   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5383   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5384   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5385   // needed.

  5387   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5389   // Perform any platform dependent FPU setup

  5390   os::setup_fpu();

  5392   return JNI_OK;

  5393 }

  5396 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5397 #ifndef USDT2

  5398   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5399 #else /* USDT2 */

  5400   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5401                                         vm, penv, _args);

  5402 #endif /* USDT2 */

  5403   if (!vm_created) {

  5404 #ifndef USDT2

  5405     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5406 #else /* USDT2 */

  5407   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5408                                          (uint32_t) JNI_ERR);

  5409 #endif /* USDT2 */

  5410     return JNI_ERR;

  5411   }

  5413   JNIWrapper("AttachCurrentThread");

  5414   jint ret = attach_current_thread(vm, penv, _args, false);

  5415 #ifndef USDT2

  5416   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5417 #else /* USDT2 */

  5418   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5419                                          ret);

  5420 #endif /* USDT2 */

  5421   return ret;

  5422 }

  5425 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5426 #ifndef USDT2

  5427   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5428 #else /* USDT2 */

  5429   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5430                                         vm);

  5431 #endif /* USDT2 */

  5432   VM_Exit::block_if_vm_exited();

  5434   JNIWrapper("DetachCurrentThread");

  5436   // If the thread has been deattacted the operations is a no-op

  5437   if (ThreadLocalStorage::thread() == NULL) {

  5438 #ifndef USDT2

  5439     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5440 #else /* USDT2 */

  5441   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5442                                          JNI_OK);

  5443 #endif /* USDT2 */

  5444     return JNI_OK;

  5445   }

  5447   JavaThread* thread = JavaThread::current();

  5448   if (thread->has_last_Java_frame()) {

  5449 #ifndef USDT2

  5450     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5451 #else /* USDT2 */

  5452   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5453                                          (uint32_t) JNI_ERR);

  5454 #endif /* USDT2 */

  5455     // Can't detach a thread that's running java, that can't work.

  5456     return JNI_ERR;

  5457   }

  5459   // Safepoint support. Have to do call-back to safepoint code, if in the

  5460   // middel of a safepoint operation

  5461   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5463   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5464   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5465   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5466   // of the guards is visible in jni_AttachCurrentThread above,

  5467   // the removal of the guards is buried below in JavaThread::exit()

  5468   // here. The abstraction should be more symmetrically either exposed

  5469   // or hidden (e.g. it could probably be hidden in the same

  5470   // (platform-dependent) methods where we do alternate stack

  5471   // maintenance work?)

  5472   thread->exit(false, JavaThread::jni_detach);

  5473   delete thread;

  5475 #ifndef USDT2

  5476   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5477 #else /* USDT2 */

  5478   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5479                                          JNI_OK);

  5480 #endif /* USDT2 */

  5481   return JNI_OK;

  5482 }

  5484 #ifndef USDT2

  5485 DT_RETURN_MARK_DECL(GetEnv, jint);

  5486 #else /* USDT2 */

  5487 DT_RETURN_MARK_DECL(GetEnv, jint

  5488                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5489 #endif /* USDT2 */

  5491 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5492 #ifndef USDT2

  5493   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5494 #else /* USDT2 */

  5495   HOTSPOT_JNI_GETENV_ENTRY(

  5496                            vm, penv, version);

  5497 #endif /* USDT2 */

  5498   jint ret = JNI_ERR;

  5499   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5501   if (!vm_created) {

  5502     *penv = NULL;

  5503     ret = JNI_EDETACHED;

  5504     return ret;

  5505   }

  5507   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5508     return ret;

  5509   }

  5511 #ifndef JVMPI_VERSION_1

  5512 // need these in order to be polite about older agents

  5513 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5514 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5515 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5516 #endif // !JVMPI_VERSION_1

  5518   Thread* thread = ThreadLocalStorage::thread();

  5519   if (thread != NULL && thread->is_Java_thread()) {

  5520     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5521       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5522       ret = JNI_OK;

  5523       return ret;

  5525     } else if (version == JVMPI_VERSION_1 ||

  5526                version == JVMPI_VERSION_1_1 ||

  5527                version == JVMPI_VERSION_1_2) {

  5528       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5529       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5530       ret = JNI_EVERSION;

  5531       return ret;

  5532     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5533       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5534       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5535       ret = JNI_EVERSION;

  5536       return ret;

  5537     } else {

  5538       *penv = NULL;

  5539       ret = JNI_EVERSION;

  5540       return ret;

  5541     }

  5542   } else {

  5543     *penv = NULL;

  5544     ret = JNI_EDETACHED;

  5545     return ret;

  5546   }

  5547 }

  5550 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5551 #ifndef USDT2

  5552   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5553 #else /* USDT2 */

  5554   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5555                                                 vm, penv, _args);

  5556 #endif /* USDT2 */

  5557   if (!vm_created) {

  5558 #ifndef USDT2

  5559     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5560 #else /* USDT2 */

  5561   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5562                                                  (uint32_t) JNI_ERR);

  5563 #endif /* USDT2 */

  5564     return JNI_ERR;

  5565   }

  5567   JNIWrapper("AttachCurrentThreadAsDaemon");

  5568   jint ret = attach_current_thread(vm, penv, _args, true);

  5569 #ifndef USDT2

  5570   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5571 #else /* USDT2 */

  5572   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5573                                                  ret);

  5574 #endif /* USDT2 */

  5575   return ret;

  5576 }

  5579 } // End extern "C"

  5581 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5582     NULL,

  5583     NULL,

  5584     NULL,

  5586     jni_DestroyJavaVM,

  5587     jni_AttachCurrentThread,

  5588     jni_DetachCurrentThread,

  5589     jni_GetEnv,

  5590     jni_AttachCurrentThreadAsDaemon

  5591 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@0d3ff4d36a31

src/share/vm/prims/jni.cpp