jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@9855b7e559ae

     1 /*

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

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

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

     5  *

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

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

     8  * published by the Free Software Foundation.

     9  *

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

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

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

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

    14  * accompanied this code).

    15  *

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

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

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

    19  *

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

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

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "classfile/altHashing.hpp"

    28 #include "classfile/classLoader.hpp"

    29 #include "classfile/javaClasses.hpp"

    30 #include "classfile/symbolTable.hpp"

    31 #include "classfile/systemDictionary.hpp"

    32 #include "classfile/vmSymbols.hpp"

    33 #include "interpreter/linkResolver.hpp"

    34 #ifndef SERIALGC

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

    36 #endif // SERIALGC

    37 #include "memory/allocation.hpp"

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

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

    40 #include "memory/oopFactory.hpp"

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

    42 #include "oops/instanceKlass.hpp"

    43 #include "oops/instanceOop.hpp"

    44 #include "oops/markOop.hpp"

    45 #include "oops/method.hpp"

    46 #include "oops/objArrayKlass.hpp"

    47 #include "oops/objArrayOop.hpp"

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

    49 #include "oops/symbol.hpp"

    50 #include "oops/typeArrayKlass.hpp"

    51 #include "oops/typeArrayOop.hpp"

    52 #include "prims/jni.h"

    53 #include "prims/jniCheck.hpp"

    54 #include "prims/jniExport.hpp"

    55 #include "prims/jniFastGetField.hpp"

    56 #include "prims/jvm.h"

    57 #include "prims/jvm_misc.hpp"

    58 #include "prims/jvmtiExport.hpp"

    59 #include "prims/jvmtiThreadState.hpp"

    60 #include "runtime/compilationPolicy.hpp"

    61 #include "runtime/fieldDescriptor.hpp"

    62 #include "runtime/fprofiler.hpp"

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

    64 #include "runtime/interfaceSupport.hpp"

    65 #include "runtime/java.hpp"

    66 #include "runtime/javaCalls.hpp"

    67 #include "runtime/jfieldIDWorkaround.hpp"

    68 #include "runtime/reflection.hpp"

    69 #include "runtime/sharedRuntime.hpp"

    70 #include "runtime/signature.hpp"

    71 #include "runtime/vm_operations.hpp"

    72 #include "services/runtimeService.hpp"

    73 #include "trace/tracing.hpp"

    74 #include "trace/traceEventTypes.hpp"

    75 #include "utilities/defaultStream.hpp"

    76 #include "utilities/dtrace.hpp"

    77 #include "utilities/events.hpp"

    78 #include "utilities/histogram.hpp"

    79 #ifdef TARGET_OS_FAMILY_linux

    80 # include "os_linux.inline.hpp"

    81 # include "thread_linux.inline.hpp"

    82 #endif

    83 #ifdef TARGET_OS_FAMILY_solaris

    84 # include "os_solaris.inline.hpp"

    85 # include "thread_solaris.inline.hpp"

    86 #endif

    87 #ifdef TARGET_OS_FAMILY_windows

    88 # include "os_windows.inline.hpp"

    89 # include "thread_windows.inline.hpp"

    90 #endif

    91 #ifdef TARGET_OS_FAMILY_bsd

    92 # include "os_bsd.inline.hpp"

    93 # include "thread_bsd.inline.hpp"

    94 #endif

    96 static jint CurrentVersion = JNI_VERSION_1_6;

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

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

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

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

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

   104 //

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

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

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

   108 // a reference to it).

   109 //

   110 // Example:

   111 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   113 //   int return_value = 0;

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

   115 //   foo(CHECK_0)

   116 //   return_value = 5;

   117 //   return return_value;

   118 // JNI_END

   119 #ifndef USDT2

   120 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   122   DTRACE_ONLY(                                                             \

   123     class DTraceReturnProbeMark_##name {                                   \

   124      public:                                                               \

   125       const type& _ret_ref;                                                \

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

   127       ~DTraceReturnProbeMark_##name() {                                    \

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

   129       }                                                                    \

   130     }                                                                      \

   131   )

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

   133 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   135   DTRACE_ONLY(                                                             \

   136     class DTraceReturnProbeMark_##name {                                   \

   137      public:                                                               \

   138       ~DTraceReturnProbeMark_##name() {                                    \

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

   140       }                                                                    \

   141     }                                                                      \

   142   )

   144 #else /* USDT2 */

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

   147   DTRACE_ONLY(                                                             \

   148     class DTraceReturnProbeMark_##name {                                   \

   149      public:                                                               \

   150       const type& _ret_ref;                                                \

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

   152       ~DTraceReturnProbeMark_##name() {                                    \

   153         probe;                                                             \

   154       }                                                                    \

   155     }                                                                      \

   156   )

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

   158 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   159   DTRACE_ONLY(                                                             \

   160     class DTraceReturnProbeMark_##name {                                   \

   161      public:                                                               \

   162       ~DTraceReturnProbeMark_##name() {                                    \

   163         probe;                                                             \

   164       }                                                                    \

   165     }                                                                      \

   166   )

   167 #endif /* USDT2 */

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

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

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

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

   173 #define DT_VOID_RETURN_MARK(name) \

   174   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   179 // different behavior for Float/Double

   180 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   181 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   182 #define FP_SELECT_Char(intcode, fpcode)    intcode

   183 #define FP_SELECT_Short(intcode, fpcode)   intcode

   184 #define FP_SELECT_Object(intcode, fpcode)  intcode

   185 #define FP_SELECT_Int(intcode, fpcode)     intcode

   186 #define FP_SELECT_Long(intcode, fpcode)    intcode

   187 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   188 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   190   FP_SELECT_##TypeName(intcode, fpcode)

   192 #define COMMA ,

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

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

   196 #ifndef USDT2

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

   198   FP_SELECT(TypeName, \

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

   200 #else /* USDT2 */

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

   202   FP_SELECT(TypeName, \

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

   204 #endif /* USDT2 */

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

   206   FP_SELECT(TypeName, \

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

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

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

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

   214     uintptr_t as_uint = (uintptr_t) id;

   215     intptr_t offset = raw_instance_offset(id);

   216     if (is_checked_jfieldID(id)) {

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

   218         return false;

   219       }

   220     }

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

   222   } else {

   223     JNIid* result = (JNIid*) id;

   224 #ifdef ASSERT

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

   226 #else

   227     return result != NULL;

   228 #endif

   229   }

   230 }

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

   234   if (offset <= small_offset_mask) {

   235     Klass* field_klass = k;

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

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

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

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

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

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

   242       super_klass = Klass::cast(field_klass)->super();

   243     }

   244     debug_only(No_Safepoint_Verifier nosafepoint;)

   245     uintptr_t klass_hash = field_klass->identity_hash();

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

   247   } else {

   248 #if 0

   249     #ifndef PRODUCT

   250     {

   251       ResourceMark rm;

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

   253     }

   254     #endif

   255 #endif

   256     return 0;

   257   }

   258 }

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

   261   uintptr_t as_uint = (uintptr_t) id;

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

   263   do {

   264     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   267       return true;

   268     k = Klass::cast(k)->super();

   269   } while (k != NULL);

   270   return false;

   271 }

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

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

   275   uintptr_t as_uint = (uintptr_t) id;

   276   intptr_t offset = raw_instance_offset(id);

   277   if (VerifyJNIFields) {

   278     if (is_checked_jfieldID(id)) {

   279       guarantee(klass_hash_ok(k, id),

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

   281     } else {

   282 #if 0

   283       #ifndef PRODUCT

   284       if (Verbose) {

   285   ResourceMark rm;

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

   287       }

   288       #endif

   289 #endif

   290     }

   291   }

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

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

   294 }

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

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

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

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

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

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

   302 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   305 // Wrapper to trace JNI functions

   307 #ifdef ASSERT

   308   Histogram* JNIHistogram;

   309   static volatile jint JNIHistogram_lock = 0;

   311   class JNITraceWrapper : public StackObj {

   312    public:

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

   314       if (TraceJNICalls) {

   315         va_list ap;

   316         va_start(ap, format);

   317         tty->print("JNI ");

   318         tty->vprint_cr(format, ap);

   319         va_end(ap);

   320       }

   321     }

   322   };

   324   class JNIHistogramElement : public HistogramElement {

   325     public:

   326      JNIHistogramElement(const char* name);

   327   };

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

   330     _name = elementName;

   331     uintx count = 0;

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

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

   335         count +=1;

   336         if ( (WarnOnStalledSpinLock > 0)

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

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

   339         }

   340       }

   341      }

   344     if(JNIHistogram == NULL)

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

   347     JNIHistogram->add_element(this);

   348     Atomic::dec(&JNIHistogram_lock);

   349   }

   351   #define JNICountWrapper(arg)                                     \

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

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

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

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

   356 #else

   357   #define JNIWrapper(arg)

   358 #endif

   361 // Implementation of JNI entries

   363 #ifndef USDT2

   364 DT_RETURN_MARK_DECL(DefineClass, jclass);

   365 #else /* USDT2 */

   366 DT_RETURN_MARK_DECL(DefineClass, jclass

   367                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   368 #endif /* USDT2 */

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

   371                                   const jbyte *buf, jsize bufLen))

   372   JNIWrapper("DefineClass");

   374 #ifndef USDT2

   375   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   377 #else /* USDT2 */

   378   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   380 #endif /* USDT2 */

   381   jclass cls = NULL;

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

   384   TempNewSymbol class_name = NULL;

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

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

   387   if (name != NULL) {

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

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

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

   391       // into the constant pool.

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

   393     }

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

   395   }

   396   ResourceMark rm(THREAD);

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

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

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

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

   402     // If not, increment the corresponding counter

   403     if (ObjectSynchronizer::

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

   405         ObjectSynchronizer::owner_self) {

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

   407     }

   408   }

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

   410                                                      Handle(), &st, true,

   411                                                      CHECK_NULL);

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

   414     trace_class_resolution(k);

   415   }

   417   cls = (jclass)JNIHandles::make_local(

   418     env, Klass::cast(k)->java_mirror());

   419   return cls;

   420 JNI_END

   424 static bool first_time_FindClass = true;

   426 #ifndef USDT2

   427 DT_RETURN_MARK_DECL(FindClass, jclass);

   428 #else /* USDT2 */

   429 DT_RETURN_MARK_DECL(FindClass, jclass

   430                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   431 #endif /* USDT2 */

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

   434   JNIWrapper("FindClass");

   435 #ifndef USDT2

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

   437 #else /* USDT2 */

   438   HOTSPOT_JNI_FINDCLASS_ENTRY(

   439                               env, (char *)name);

   440 #endif /* USDT2 */

   442   jclass result = NULL;

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

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

   446   bool first_time = first_time_FindClass;

   447   first_time_FindClass = false;

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

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

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

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

   453   }

   455   //%note jni_3

   456   Handle loader;

   457   Handle protection_domain;

   458   // Find calling class

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

   460   if (k.not_null()) {

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

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

   463     // in the correct class context.

   464     if (loader.is_null() &&

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

   466       JavaValue result(T_OBJECT);

   467       JavaCalls::call_static(&result, k,

   468                                       vmSymbols::getFromClass_name(),

   469                                       vmSymbols::void_class_signature(),

   470                                       thread);

   471       if (HAS_PENDING_EXCEPTION) {

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

   473         CLEAR_PENDING_EXCEPTION;

   474         THROW_HANDLE_0(ex);

   475       }

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

   477       loader = Handle(THREAD,

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

   479       protection_domain = Handle(THREAD,

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

   481     }

   482   } else {

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

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

   485   }

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

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

   489                                         protection_domain, true, thread);

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

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

   493   }

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

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

   497   // Controlled by flag DelayCompilationDuringStartup.

   498   if (first_time && !CompileTheWorld)

   499     CompilationPolicy::completed_vm_startup();

   501   return result;

   502 JNI_END

   504 #ifndef USDT2

   505 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   506 #else /* USDT2 */

   507 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   508                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   509 #endif /* USDT2 */

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

   512   JNIWrapper("FromReflectedMethod");

   513 #ifndef USDT2

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

   515 #else /* USDT2 */

   516   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   517                                         env, method);

   518 #endif /* USDT2 */

   519   jmethodID ret = NULL;

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

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

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

   524   oop mirror     = NULL;

   525   int slot       = 0;

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

   528     mirror = java_lang_reflect_Constructor::clazz(reflected);

   529     slot   = java_lang_reflect_Constructor::slot(reflected);

   530   } else {

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

   532     mirror = java_lang_reflect_Method::clazz(reflected);

   533     slot   = java_lang_reflect_Method::slot(reflected);

   534   }

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

   537   KlassHandle k1(THREAD, k);

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

   539   Klass::cast(k1())->initialize(CHECK_NULL);

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

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

   542   return ret;

   543 JNI_END

   545 #ifndef USDT2

   546 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   547 #else /* USDT2 */

   548 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   549                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   550 #endif /* USDT2 */

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

   553   JNIWrapper("FromReflectedField");

   554 #ifndef USDT2

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

   556 #else /* USDT2 */

   557   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   558                                        env, field);

   559 #endif /* USDT2 */

   560   jfieldID ret = NULL;

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

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

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

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

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

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

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

   570   KlassHandle k1(THREAD, k);

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

   572   Klass::cast(k1())->initialize(CHECK_NULL);

   574   // First check if this is a static field

   575   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   579     debug_only(id->set_is_static_field_id();)

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

   581     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   582     return ret;

   583   }

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

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

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

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

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

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

   591   return ret;

   592 JNI_END

   594 #ifndef USDT2

   595 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   596 #else /* USDT2 */

   597 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   598                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   599 #endif /* USDT2 */

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

   602   JNIWrapper("ToReflectedMethod");

   603 #ifndef USDT2

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

   605 #else /* USDT2 */

   606   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   608 #endif /* USDT2 */

   609   jobject ret = NULL;

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

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

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

   614   oop reflection_method;

   615   if (m->is_initializer()) {

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

   617   } else {

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

   619   }

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

   621   return ret;

   622 JNI_END

   624 #ifndef USDT2

   625 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   626 #else /* USDT2 */

   627 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   628                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   629 #endif /* USDT2 */

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

   632   JNIWrapper("GetSuperclass");

   633 #ifndef USDT2

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

   635 #else /* USDT2 */

   636   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   637                                   env, sub);

   638 #endif /* USDT2 */

   639   jclass obj = NULL;

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

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

   643   // primitive classes return NULL

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

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

   647   // arrays return Object

   648   // interfaces return NULL

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

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

   651   if (Klass::cast(k)->is_interface()) return NULL;

   653   // return mirror for superclass

   654   Klass* super = Klass::cast(k)->java_super();

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

   656   debug_only(Klass* super2 = ( Klass::cast(k)->oop_is_array()

   657                                  ? SystemDictionary::Object_klass()

   658                                  : Klass::cast(k)->super() ) );

   659   assert(super == super2,

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

   661   obj = (super == NULL) ? NULL : (jclass) JNIHandles::make_local(Klass::cast(super)->java_mirror());

   662   return obj;

   663 JNI_END

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

   666   JNIWrapper("IsSubclassOf");

   667 #ifndef USDT2

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

   669 #else /* USDT2 */

   670   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   671                                      env, sub, super);

   672 #endif /* USDT2 */

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

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

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

   676       java_lang_Class::is_primitive(super_mirror)) {

   677     jboolean ret = (sub_mirror == super_mirror);

   678 #ifndef USDT2

   679     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   680 #else /* USDT2 */

   681     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   682                                         ret);

   683 #endif /* USDT2 */

   684     return ret;

   685   }

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

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

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

   689   jboolean ret = Klass::cast(sub_klass)->is_subtype_of(super_klass) ?

   690                    JNI_TRUE : JNI_FALSE;

   691 #ifndef USDT2

   692   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   693 #else /* USDT2 */

   694   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   695                                       ret);

   696 #endif /* USDT2 */

   697   return ret;

   698 JNI_END

   700 #ifndef USDT2

   701 DT_RETURN_MARK_DECL(Throw, jint);

   702 #else /* USDT2 */

   703 DT_RETURN_MARK_DECL(Throw, jint

   704                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   705 #endif /* USDT2 */

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

   708   JNIWrapper("Throw");

   709 #ifndef USDT2

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

   711 #else /* USDT2 */

   712   HOTSPOT_JNI_THROW_ENTRY(

   713  env, obj);

   714 #endif /* USDT2 */

   715   jint ret = JNI_OK;

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

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

   719   ShouldNotReachHere();

   720 JNI_END

   722 #ifndef USDT2

   723 DT_RETURN_MARK_DECL(ThrowNew, jint);

   724 #else /* USDT2 */

   725 DT_RETURN_MARK_DECL(ThrowNew, jint

   726                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   727 #endif /* USDT2 */

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

   730   JNIWrapper("ThrowNew");

   731 #ifndef USDT2

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

   733 #else /* USDT2 */

   734   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   736 #endif /* USDT2 */

   737   jint ret = JNI_OK;

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

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

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

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

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

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

   745   ShouldNotReachHere();

   746 JNI_END

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

   750 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   756 // state transition.

   758 static void jni_check_async_exceptions(JavaThread *thread) {

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

   760   thread->check_and_handle_async_exceptions();

   761 }

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

   764   JNIWrapper("ExceptionOccurred");

   765 #ifndef USDT2

   766   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   767 #else /* USDT2 */

   768   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   769                                       env);

   770 #endif /* USDT2 */

   771   jni_check_async_exceptions(thread);

   772   oop exception = thread->pending_exception();

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

   774 #ifndef USDT2

   775   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   776 #else /* USDT2 */

   777   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   778                                        ret);

   779 #endif /* USDT2 */

   780   return ret;

   781 JNI_END

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

   785   JNIWrapper("ExceptionDescribe");

   786 #ifndef USDT2

   787   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   788 #else /* USDT2 */

   789   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   790                                       env);

   791 #endif /* USDT2 */

   792   if (thread->has_pending_exception()) {

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

   794     thread->clear_pending_exception();

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

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

   797     } else {

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

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

   800         ResourceMark rm(THREAD);

   801         jio_fprintf(defaultStream::error_stream(),

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

   803       }

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

   805         JavaValue result(T_VOID);

   806         JavaCalls::call_virtual(&result,

   807                                 ex,

   808                                 KlassHandle(THREAD,

   809                                   SystemDictionary::Throwable_klass()),

   810                                 vmSymbols::printStackTrace_name(),

   811                                 vmSymbols::void_method_signature(),

   812                                 THREAD);

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

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

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

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

   817         // is expected.

   818         CLEAR_PENDING_EXCEPTION;

   819       } else {

   820         ResourceMark rm(THREAD);

   821         jio_fprintf(defaultStream::error_stream(),

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

   823         Klass::cast(ex->klass())->external_name());

   824       }

   825     }

   826   }

   827 #ifndef USDT2

   828   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   829 #else /* USDT2 */

   830   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   831                                        );

   832 #endif /* USDT2 */

   833 JNI_END

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

   837   JNIWrapper("ExceptionClear");

   838 #ifndef USDT2

   839   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   840 #else /* USDT2 */

   841   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   842                                    env);

   843 #endif /* USDT2 */

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

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

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

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

   849     state->set_exception_caught();

   850   }

   851   thread->clear_pending_exception();

   852 #ifndef USDT2

   853   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   854 #else /* USDT2 */

   855   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   856                                     );

   857 #endif /* USDT2 */

   858 JNI_END

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

   862   JNIWrapper("FatalError");

   863 #ifndef USDT2

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

   865 #else /* USDT2 */

   866   HOTSPOT_JNI_FATALERROR_ENTRY(

   867                                env, (char *) msg);

   868 #endif /* USDT2 */

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

   870   thread->print_stack();

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

   872 JNI_END

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

   876   JNIWrapper("PushLocalFrame");

   877 #ifndef USDT2

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

   879 #else /* USDT2 */

   880   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   881                                    env, capacity);

   882 #endif /* USDT2 */

   883   //%note jni_11

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

   885 #ifndef USDT2

   886     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   887 #else /* USDT2 */

   888     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   889                                       (uint32_t)JNI_ERR);

   890 #endif /* USDT2 */

   891     return JNI_ERR;

   892   }

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

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

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

   896   new_handles->set_pop_frame_link(old_handles);

   897   thread->set_active_handles(new_handles);

   898   jint ret = JNI_OK;

   899 #ifndef USDT2

   900   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   901 #else /* USDT2 */

   902   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   903                                     ret);

   904 #endif /* USDT2 */

   905   return ret;

   906 JNI_END

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

   910   JNIWrapper("PopLocalFrame");

   911 #ifndef USDT2

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

   913 #else /* USDT2 */

   914   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   915                                   env, result);

   916 #endif /* USDT2 */

   917   //%note jni_11

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

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

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

   921   if (new_handles != NULL) {

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

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

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

   925     // the release_block call will release the blocks.

   926     thread->set_active_handles(new_handles);

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

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

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

   930   }

   931 #ifndef USDT2

   932   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   933 #else /* USDT2 */

   934   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   935                                    result);

   936 #endif /* USDT2 */

   937   return result;

   938 JNI_END

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

   942   JNIWrapper("NewGlobalRef");

   943 #ifndef USDT2

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

   945 #else /* USDT2 */

   946   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   947                                  env, ref);

   948 #endif /* USDT2 */

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

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

   951 #ifndef USDT2

   952   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   953 #else /* USDT2 */

   954   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   955                                   ret);

   956 #endif /* USDT2 */

   957   return ret;

   958 JNI_END

   960 // Must be JNI_ENTRY (with HandleMark)

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

   962   JNIWrapper("DeleteGlobalRef");

   963 #ifndef USDT2

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

   965 #else /* USDT2 */

   966   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   967                                     env, ref);

   968 #endif /* USDT2 */

   969   JNIHandles::destroy_global(ref);

   970 #ifndef USDT2

   971   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   972 #else /* USDT2 */

   973   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   974                                      );

   975 #endif /* USDT2 */

   976 JNI_END

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

   979   JNIWrapper("DeleteLocalRef");

   980 #ifndef USDT2

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

   982 #else /* USDT2 */

   983   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   984                                    env, obj);

   985 #endif /* USDT2 */

   986   JNIHandles::destroy_local(obj);

   987 #ifndef USDT2

   988   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   989 #else /* USDT2 */

   990   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   991                                     );

   992 #endif /* USDT2 */

   993 JNI_END

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

   996   JNIWrapper("IsSameObject");

   997 #ifndef USDT2

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

   999 #else /* USDT2 */

  1000   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

  1001                                  env, r1, r2);

  1002 #endif /* USDT2 */

  1003   oop a = JNIHandles::resolve(r1);

  1004   oop b = JNIHandles::resolve(r2);

  1005   jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;

  1006 #ifndef USDT2

  1007   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1008 #else /* USDT2 */

  1009   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1010                                   ret);

  1011 #endif /* USDT2 */

  1012   return ret;

  1013 JNI_END

  1016 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))

  1017   JNIWrapper("NewLocalRef");

  1018 #ifndef USDT2

  1019   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);

  1020 #else /* USDT2 */

  1021   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1022                                 env, ref);

  1023 #endif /* USDT2 */

  1024   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));

  1025 #ifndef USDT2

  1026   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1027 #else /* USDT2 */

  1028   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1029                                  ret);

  1030 #endif /* USDT2 */

  1031   return ret;

  1032 JNI_END

  1034 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))

  1035   JNIWrapper("EnsureLocalCapacity");

  1036 #ifndef USDT2

  1037   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);

  1038 #else /* USDT2 */

  1039   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1040                                         env, capacity);

  1041 #endif /* USDT2 */

  1042   jint ret;

  1043   if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) {

  1044     ret = JNI_OK;

  1045   } else {

  1046     ret = JNI_ERR;

  1047   }

  1048 #ifndef USDT2

  1049   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1050 #else /* USDT2 */

  1051   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1052                                          ret);

  1053 #endif /* USDT2 */

  1054   return ret;

  1055 JNI_END

  1057 // Return the Handle Type

  1058 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))

  1059   JNIWrapper("GetObjectRefType");

  1060 #ifndef USDT2

  1061   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);

  1062 #else /* USDT2 */

  1063   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1064                                      env, obj);

  1065 #endif /* USDT2 */

  1066   jobjectRefType ret;

  1067   if (JNIHandles::is_local_handle(thread, obj) ||

  1068       JNIHandles::is_frame_handle(thread, obj))

  1069     ret = JNILocalRefType;

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

  1071     ret = JNIGlobalRefType;

  1072   else if (JNIHandles::is_weak_global_handle(obj))

  1073     ret = JNIWeakGlobalRefType;

  1074   else

  1075     ret = JNIInvalidRefType;

  1076 #ifndef USDT2

  1077   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1078 #else /* USDT2 */

  1079   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1080                                       (void *) ret);

  1081 #endif /* USDT2 */

  1082   return ret;

  1083 JNI_END

  1086 class JNI_ArgumentPusher : public SignatureIterator {

  1087  protected:

  1088   JavaCallArguments*  _arguments;

  1090   virtual void get_bool   () = 0;

  1091   virtual void get_char   () = 0;

  1092   virtual void get_short  () = 0;

  1093   virtual void get_byte   () = 0;

  1094   virtual void get_int    () = 0;

  1095   virtual void get_long   () = 0;

  1096   virtual void get_float  () = 0;

  1097   virtual void get_double () = 0;

  1098   virtual void get_object () = 0;

  1100   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {

  1101     this->_return_type = T_ILLEGAL;

  1102     _arguments = NULL;

  1103   }

  1105  public:

  1106   virtual void iterate( uint64_t fingerprint ) = 0;

  1108   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }

  1110   inline void do_bool()                     { if (!is_return_type()) get_bool();   }

  1111   inline void do_char()                     { if (!is_return_type()) get_char();   }

  1112   inline void do_short()                    { if (!is_return_type()) get_short();  }

  1113   inline void do_byte()                     { if (!is_return_type()) get_byte();   }

  1114   inline void do_int()                      { if (!is_return_type()) get_int();    }

  1115   inline void do_long()                     { if (!is_return_type()) get_long();   }

  1116   inline void do_float()                    { if (!is_return_type()) get_float();  }

  1117   inline void do_double()                   { if (!is_return_type()) get_double(); }

  1118   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }

  1119   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array

  1120   inline void do_void()                     { }

  1122   JavaCallArguments* arguments()     { return _arguments; }

  1123   void push_receiver(Handle h)       { _arguments->push_oop(h); }

  1124 };

  1127 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1128  protected:

  1129   va_list _ap;

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

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

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

  1134   inline void get_byte()   { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg

  1135   inline void get_int()    { _arguments->push_int(va_arg(_ap, jint)); }

  1137   // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests

  1139   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }

  1140   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg

  1141   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }

  1142   inline void get_object() { jobject l = va_arg(_ap, jobject);

  1143                              _arguments->push_oop(Handle((oop *)l, false)); }

  1145   inline void set_ap(va_list rap) {

  1146 #ifdef va_copy

  1147     va_copy(_ap, rap);

  1148 #elif defined (__va_copy)

  1149     __va_copy(_ap, rap);

  1150 #else

  1151     _ap = rap;

  1152 #endif

  1153   }

  1155  public:

  1156   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1157        : JNI_ArgumentPusher(signature) {

  1158     set_ap(rap);

  1159   }

  1160   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

  1161       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1162     set_ap(rap);

  1163   }

  1165   // Optimized path if we have the bitvector form of signature

  1166   void iterate( uint64_t fingerprint ) {

  1167     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments

  1168     else {

  1169       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1170                                   result_feature_mask);

  1172       assert(fingerprint, "Fingerprint should not be 0");

  1173       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1174       while ( 1 ) {

  1175         switch ( fingerprint & parameter_feature_mask ) {

  1176           case bool_parm:

  1177           case char_parm:

  1178           case short_parm:

  1179           case byte_parm:

  1180           case int_parm:

  1181             get_int();

  1182             break;

  1183           case obj_parm:

  1184             get_object();

  1185             break;

  1186           case long_parm:

  1187             get_long();

  1188             break;

  1189           case float_parm:

  1190             get_float();

  1191             break;

  1192           case double_parm:

  1193             get_double();

  1194             break;

  1195           case done_parm:

  1196             return;

  1197             break;

  1198           default:

  1199             ShouldNotReachHere();

  1200             break;

  1201         }

  1202         fingerprint >>= parameter_feature_size;

  1203       }

  1204     }

  1205   }

  1206 };

  1209 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1210  protected:

  1211   const jvalue *_ap;

  1213   inline void get_bool()   { _arguments->push_int((jint)(_ap++)->z); }

  1214   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }

  1215   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }

  1216   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }

  1217   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }

  1219   inline void get_long()   { _arguments->push_long((_ap++)->j);  }

  1220   inline void get_float()  { _arguments->push_float((_ap++)->f); }

  1221   inline void get_double() { _arguments->push_double((_ap++)->d);}

  1222   inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }

  1224   inline void set_ap(const jvalue *rap) { _ap = rap; }

  1226  public:

  1227   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)

  1228        : JNI_ArgumentPusher(signature) {

  1229     set_ap(rap);

  1230   }

  1231   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

  1232       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1233     set_ap(rap);

  1234   }

  1236   // Optimized path if we have the bitvector form of signature

  1237   void iterate( uint64_t fingerprint ) {

  1238     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments

  1239     else {

  1240       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1241                                   result_feature_mask);

  1242       assert(fingerprint, "Fingerprint should not be 0");

  1243       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1244       while ( 1 ) {

  1245         switch ( fingerprint & parameter_feature_mask ) {

  1246           case bool_parm:

  1247             get_bool();

  1248             break;

  1249           case char_parm:

  1250             get_char();

  1251             break;

  1252           case short_parm:

  1253             get_short();

  1254             break;

  1255           case byte_parm:

  1256             get_byte();

  1257             break;

  1258           case int_parm:

  1259             get_int();

  1260             break;

  1261           case obj_parm:

  1262             get_object();

  1263             break;

  1264           case long_parm:

  1265             get_long();

  1266             break;

  1267           case float_parm:

  1268             get_float();

  1269             break;

  1270           case double_parm:

  1271             get_double();

  1272             break;

  1273           case done_parm:

  1274             return;

  1275             break;

  1276           default:

  1277             ShouldNotReachHere();

  1278             break;

  1279         }

  1280         fingerprint >>= parameter_feature_size;

  1281       }

  1282     }

  1283   }

  1284 };

  1287 enum JNICallType {

  1288   JNI_STATIC,

  1289   JNI_VIRTUAL,

  1290   JNI_NONVIRTUAL

  1291 };

  1293 static methodHandle jni_resolve_interface_call(Handle recv, methodHandle method, TRAPS) {

  1294   assert(!method.is_null() , "method should not be null");

  1296   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1297   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1298   KlassHandle spec_klass (THREAD, method->method_holder());

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

  1300   Symbol*  signature  = method->signature();

  1301   CallInfo info;

  1302   LinkResolver::resolve_interface_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1303   return info.selected_method();

  1304 }

  1306 static methodHandle jni_resolve_virtual_call(Handle recv, methodHandle method, TRAPS) {

  1307   assert(!method.is_null() , "method should not be null");

  1309   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1310   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1311   KlassHandle spec_klass (THREAD, method->method_holder());

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

  1313   Symbol*  signature  = method->signature();

  1314   CallInfo info;

  1315   LinkResolver::resolve_virtual_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1316   return info.selected_method();

  1317 }

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

  1322   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1324   // Create object to hold arguments for the JavaCall, and associate it with

  1325   // the jni parser

  1326   ResourceMark rm(THREAD);

  1327   int number_of_parameters = method->size_of_parameters();

  1328   JavaCallArguments java_args(number_of_parameters);

  1329   args->set_java_argument_object(&java_args);

  1331   assert(method->is_static(), "method should be static");

  1333   // Fill out JavaCallArguments object

  1334   args->iterate( Fingerprinter(method).fingerprint() );

  1335   // Initialize result type

  1336   result->set_type(args->get_ret_type());

  1338   // Invoke the method. Result is returned as oop.

  1339   JavaCalls::call(result, method, &java_args, CHECK);

  1341   // Convert result

  1342   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1343     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1344   }

  1345 }

  1348 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1349   oop recv = JNIHandles::resolve(receiver);

  1350   if (recv == NULL) {

  1351     THROW(vmSymbols::java_lang_NullPointerException());

  1352   }

  1353   Handle h_recv(THREAD, recv);

  1355   int number_of_parameters;

  1356   Method* selected_method;

  1357   {

  1358     Method* m = Method::resolve_jmethod_id(method_id);

  1359     number_of_parameters = m->size_of_parameters();

  1360     Klass* holder = m->method_holder();

  1361     if (!(Klass::cast(holder))->is_interface()) {

  1362       // non-interface call -- for that little speed boost, don't handlize

  1363       debug_only(No_Safepoint_Verifier nosafepoint;)

  1364       if (call_type == JNI_VIRTUAL) {

  1365         // jni_GetMethodID makes sure class is linked and initialized

  1366         // so m should have a valid vtable index.

  1367         int vtbl_index = m->vtable_index();

  1368         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1369           Klass* k = h_recv->klass();

  1370           // k might be an arrayKlassOop but all vtables start at

  1371           // the same place. The cast is to avoid virtual call and assertion.

  1372           InstanceKlass *ik = (InstanceKlass*)k;

  1373           selected_method = ik->method_at_vtable(vtbl_index);

  1374         } else {

  1375           // final method

  1376           selected_method = m;

  1377         }

  1378       } else {

  1379         // JNI_NONVIRTUAL call

  1380         selected_method = m;

  1381       }

  1382     } else {

  1383       // interface call

  1384       KlassHandle h_holder(THREAD, holder);

  1386       int itbl_index = m->cached_itable_index();

  1387       if (itbl_index == -1) {

  1388         itbl_index = klassItable::compute_itable_index(m);

  1389         m->set_cached_itable_index(itbl_index);

  1390         // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again

  1391       }

  1392       Klass* k = h_recv->klass();

  1393       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1394     }

  1395   }

  1397   methodHandle method(THREAD, selected_method);

  1399   // Create object to hold arguments for the JavaCall, and associate it with

  1400   // the jni parser

  1401   ResourceMark rm(THREAD);

  1402   JavaCallArguments java_args(number_of_parameters);

  1403   args->set_java_argument_object(&java_args);

  1405   // handle arguments

  1406   assert(!method->is_static(), "method should not be static");

  1407   args->push_receiver(h_recv); // Push jobject handle

  1409   // Fill out JavaCallArguments object

  1410   args->iterate( Fingerprinter(method).fingerprint() );

  1411   // Initialize result type

  1412   result->set_type(args->get_ret_type());

  1414   // Invoke the method. Result is returned as oop.

  1415   JavaCalls::call(result, method, &java_args, CHECK);

  1417   // Convert result

  1418   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1419     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1420   }

  1421 }

  1424 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1425   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1426   Klass::cast(k())->check_valid_for_instantiation(false, CHECK_NULL);

  1427   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1428   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1429   return ih;

  1430 }

  1432 #ifndef USDT2

  1433 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1434 #else /* USDT2 */

  1435 DT_RETURN_MARK_DECL(AllocObject, jobject

  1436                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1437 #endif /* USDT2 */

  1439 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1440   JNIWrapper("AllocObject");

  1442 #ifndef USDT2

  1443   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1444 #else /* USDT2 */

  1445   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1446                                 env, clazz);

  1447 #endif /* USDT2 */

  1448   jobject ret = NULL;

  1449   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1451   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1452   ret = JNIHandles::make_local(env, i);

  1453   return ret;

  1454 JNI_END

  1456 #ifndef USDT2

  1457 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1458 #else /* USDT2 */

  1459 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1460                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1461 #endif /* USDT2 */

  1463 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1464   JNIWrapper("NewObjectA");

  1465 #ifndef USDT2

  1466   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1467 #else /* USDT2 */

  1468   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1469                                env, clazz, (uintptr_t) methodID);

  1470 #endif /* USDT2 */

  1471   jobject obj = NULL;

  1472   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1474   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1475   obj = JNIHandles::make_local(env, i);

  1476   JavaValue jvalue(T_VOID);

  1477   JNI_ArgumentPusherArray ap(methodID, args);

  1478   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1479   return obj;

  1480 JNI_END

  1482 #ifndef USDT2

  1483 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1484 #else /* USDT2 */

  1485 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1486                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1487 #endif /* USDT2 */

  1489 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1490   JNIWrapper("NewObjectV");

  1491 #ifndef USDT2

  1492   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1493 #else /* USDT2 */

  1494   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1495                                env, clazz, (uintptr_t) methodID);

  1496 #endif /* USDT2 */

  1497   jobject obj = NULL;

  1498   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1500   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1501   obj = JNIHandles::make_local(env, i);

  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   return obj;

  1506 JNI_END

  1508 #ifndef USDT2

  1509 DT_RETURN_MARK_DECL(NewObject, jobject);

  1510 #else /* USDT2 */

  1511 DT_RETURN_MARK_DECL(NewObject, jobject

  1512                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1513 #endif /* USDT2 */

  1515 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1516   JNIWrapper("NewObject");

  1517 #ifndef USDT2

  1518   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1519 #else /* USDT2 */

  1520   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1521                               env, clazz, (uintptr_t) methodID);

  1522 #endif /* USDT2 */

  1523   jobject obj = NULL;

  1524   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1526   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1527   obj = JNIHandles::make_local(env, i);

  1528   va_list args;

  1529   va_start(args, methodID);

  1530   JavaValue jvalue(T_VOID);

  1531   JNI_ArgumentPusherVaArg ap(methodID, args);

  1532   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1533   va_end(args);

  1534   return obj;

  1535 JNI_END

  1538 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1539   JNIWrapper("GetObjectClass");

  1540 #ifndef USDT2

  1541   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1542 #else /* USDT2 */

  1543   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1544                                    env, obj);

  1545 #endif /* USDT2 */

  1546   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1547   jclass ret =

  1548     (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());

  1549 #ifndef USDT2

  1550   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1551 #else /* USDT2 */

  1552   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1553                                     ret);

  1554 #endif /* USDT2 */

  1555   return ret;

  1556 JNI_END

  1558 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1559   JNIWrapper("IsInstanceOf");

  1560 #ifndef USDT2

  1561   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1562 #else /* USDT2 */

  1563   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1564                                  env, obj, clazz);

  1565 #endif /* USDT2 */

  1566   jboolean ret = JNI_TRUE;

  1567   if (obj != NULL) {

  1568     ret = JNI_FALSE;

  1569     Klass* k = java_lang_Class::as_Klass(

  1570       JNIHandles::resolve_non_null(clazz));

  1571     if (k != NULL) {

  1572       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1573     }

  1574   }

  1575 #ifndef USDT2

  1576   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1577 #else /* USDT2 */

  1578   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1579                                   ret);

  1580 #endif /* USDT2 */

  1581   return ret;

  1582 JNI_END

  1585 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1586                                const char *sig, bool is_static, TRAPS) {

  1587   // %%%% This code should probably just call into a method in the LinkResolver

  1588   //

  1589   // The class should have been loaded (we have an instance of the class

  1590   // passed in) so the method and signature should already be in the symbol

  1591   // table.  If they're not there, the method doesn't exist.

  1592   const char *name_to_probe = (name_str == NULL)

  1593                         ? vmSymbols::object_initializer_name()->as_C_string()

  1594                         : name_str;

  1595   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1596   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1598   if (name == NULL || signature == NULL) {

  1599     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1600   }

  1602   // Throw a NoSuchMethodError exception if we have an instance of a

  1603   // primitive java.lang.Class

  1604   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

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

  1606   }

  1608   KlassHandle klass(THREAD,

  1609                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1611   // Make sure class is linked and initialized before handing id's out to

  1612   // Method*s.

  1613   Klass::cast(klass())->initialize(CHECK_NULL);

  1615   Method* m;

  1616   if (name == vmSymbols::object_initializer_name() ||

  1617       name == vmSymbols::class_initializer_name()) {

  1618     // Never search superclasses for constructors

  1619     if (klass->oop_is_instance()) {

  1620       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1621     } else {

  1622       m = NULL;

  1623     }

  1624   } else {

  1625     m = klass->lookup_method(name, signature);

  1626     // Look up interfaces

  1627     if (m == NULL && klass->oop_is_instance()) {

  1628       m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,

  1629                                                                    signature);

  1630     }

  1631   }

  1632   if (m == NULL || (m->is_static() != is_static)) {

  1633     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1634   }

  1635   return m->jmethod_id();

  1636 }

  1639 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1640           const char *name, const char *sig))

  1641   JNIWrapper("GetMethodID");

  1642 #ifndef USDT2

  1643   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1644 #else /* USDT2 */

  1645   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1646                                 env, clazz, (char *) name, (char *) sig);

  1647 #endif /* USDT2 */

  1648   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1649 #ifndef USDT2

  1650   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1651 #else /* USDT2 */

  1652   HOTSPOT_JNI_GETMETHODID_RETURN(

  1653                                  (uintptr_t) ret);

  1654 #endif /* USDT2 */

  1655   return ret;

  1656 JNI_END

  1659 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1660           const char *name, const char *sig))

  1661   JNIWrapper("GetStaticMethodID");

  1662 #ifndef USDT2

  1663   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1664 #else /* USDT2 */

  1665   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1666                                       env, (char *) clazz, (char *) name, (char *)sig);

  1667 #endif /* USDT2 */

  1668   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1669 #ifndef USDT2

  1670   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1671 #else /* USDT2 */

  1672   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1673                                        (uintptr_t) ret);

  1674 #endif /* USDT2 */

  1675   return ret;

  1676 JNI_END

  1680 //

  1681 // Calling Methods

  1682 //

  1684 #ifndef USDT2

  1685 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1686 \

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

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

  1689   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1690 \

  1691 JNI_ENTRY(ResultType, \

  1692           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1693   JNIWrapper("Call" XSTR(Result) "Method"); \

  1694 \

  1695   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1696   ResultType ret = 0;\

  1697   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1698                      (const ResultType&)ret);\

  1699 \

  1700   va_list args; \

  1701   va_start(args, methodID); \

  1702   JavaValue jvalue(Tag); \

  1703   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1704   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1705   va_end(args); \

  1706   ret = jvalue.get_##ResultType(); \

  1707   return ret;\

  1708 JNI_END \

  1709 \

  1710 \

  1711 JNI_ENTRY(ResultType, \

  1712           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1713   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1714 \

  1715   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1716   ResultType ret = 0;\

  1717   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1718                      (const ResultType&)ret);\

  1719 \

  1720   JavaValue jvalue(Tag); \

  1721   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1722   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1723   ret = jvalue.get_##ResultType(); \

  1724   return ret;\

  1725 JNI_END \

  1726 \

  1727 \

  1728 JNI_ENTRY(ResultType, \

  1729           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1730   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1731   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1732   ResultType ret = 0;\

  1733   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1734                      (const ResultType&)ret);\

  1735 \

  1736   JavaValue jvalue(Tag); \

  1737   JNI_ArgumentPusherArray ap(methodID, args); \

  1738   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1739   ret = jvalue.get_##ResultType(); \

  1740   return ret;\

  1741 JNI_END

  1743 // the runtime type of subword integral basic types is integer

  1744 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1745 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1746 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1747 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1749 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1750 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1751 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1752 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1753 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1755 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1756 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1757 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1759 #else /* USDT2 */

  1761 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1762                           , EntryProbe, ReturnProbe)    \

  1763 \

  1764   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1765                           , ReturnProbe);                          \

  1766 \

  1767 JNI_ENTRY(ResultType, \

  1768           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1769   JNIWrapper("Call" XSTR(Result) "Method"); \

  1770 \

  1771   EntryProbe; \

  1772   ResultType ret = 0;\

  1773   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1774                      (const ResultType&)ret);\

  1775 \

  1776   va_list args; \

  1777   va_start(args, methodID); \

  1778   JavaValue jvalue(Tag); \

  1779   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1780   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1781   va_end(args); \

  1782   ret = jvalue.get_##ResultType(); \

  1783   return ret;\

  1784 JNI_END

  1786 // the runtime type of subword integral basic types is integer

  1787 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1788                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1789                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1790 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

  1791                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1792                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1793 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

  1794                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1795                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1796 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

  1797                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1798                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1800 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1801                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1802                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1803 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

  1804                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1805                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1806 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

  1807                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1808                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1809 // Float and double probes don't return value because dtrace doesn't currently support it

  1810 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

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

  1812                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1813 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

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

  1815                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1817 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1818                           , EntryProbe, ReturnProbe)    \

  1819 \

  1820   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1821                           , ReturnProbe);                          \

  1822 \

  1823 JNI_ENTRY(ResultType, \

  1824           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1825   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1826 \

  1827   EntryProbe;\

  1828   ResultType ret = 0;\

  1829   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1830                      (const ResultType&)ret);\

  1831 \

  1832   JavaValue jvalue(Tag); \

  1833   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1834   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1835   ret = jvalue.get_##ResultType(); \

  1836   return ret;\

  1837 JNI_END

  1839 // the runtime type of subword integral basic types is integer

  1840 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

  1841                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1842                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1843 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

  1844                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1845                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1846 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

  1847                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1848                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1849 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

  1850                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1851                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1853 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1854                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1855                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1856 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

  1857                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1858                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1859 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

  1860                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1861                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1862 // Float and double probes don't return value because dtrace doesn't currently support it

  1863 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

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

  1865                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1866 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

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

  1868                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1870 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1871                           , EntryProbe, ReturnProbe)    \

  1872 \

  1873   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1874                           , ReturnProbe);                          \

  1875 \

  1876 JNI_ENTRY(ResultType, \

  1877           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1878   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1879   EntryProbe; \

  1880   ResultType ret = 0;\

  1881   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1882                      (const ResultType&)ret);\

  1883 \

  1884   JavaValue jvalue(Tag); \

  1885   JNI_ArgumentPusherArray ap(methodID, args); \

  1886   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1887   ret = jvalue.get_##ResultType(); \

  1888   return ret;\

  1889 JNI_END

  1891 // the runtime type of subword integral basic types is integer

  1892 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

  1893                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1894                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1895 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

  1896                   , HOTSPOT_JNI_CALLBYTEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1897                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1898 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

  1899                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1900                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1901 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

  1902                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1903                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1905 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1906                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1907                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1908 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

  1909                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1910                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1911 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

  1912                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1913                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1914 // Float and double probes don't return value because dtrace doesn't currently support it

  1915 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1916                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1917                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1918 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1919                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1920                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1922 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1923 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1924 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1926 #endif /* USDT2 */

  1928 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1929   JNIWrapper("CallVoidMethod");

  1930 #ifndef USDT2

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

  1932 #else /* USDT2 */

  1933   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1934                                    env, obj, (uintptr_t) methodID);

  1935 #endif /* USDT2 */

  1936   DT_VOID_RETURN_MARK(CallVoidMethod);

  1938   va_list args;

  1939   va_start(args, methodID);

  1940   JavaValue jvalue(T_VOID);

  1941   JNI_ArgumentPusherVaArg ap(methodID, args);

  1942   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1943   va_end(args);

  1944 JNI_END

  1947 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1948   JNIWrapper("CallVoidMethodV");

  1949 #ifndef USDT2

  1950   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1951 #else /* USDT2 */

  1952   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1953                                     env, obj, (uintptr_t) methodID);

  1954 #endif /* USDT2 */

  1955   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1957   JavaValue jvalue(T_VOID);

  1958   JNI_ArgumentPusherVaArg ap(methodID, args);

  1959   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1960 JNI_END

  1963 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1964   JNIWrapper("CallVoidMethodA");

  1965 #ifndef USDT2

  1966   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1967 #else /* USDT2 */

  1968   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1969                                     env, obj, (uintptr_t) methodID);

  1970 #endif /* USDT2 */

  1971   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1973   JavaValue jvalue(T_VOID);

  1974   JNI_ArgumentPusherArray ap(methodID, args);

  1975   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1976 JNI_END

  1979 #ifndef USDT2

  1980 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1981 \

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

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

  1984   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1985 \

  1986 JNI_ENTRY(ResultType, \

  1987           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1988   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1989 \

  1990   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1991   ResultType ret;\

  1992   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1993                      (const ResultType&)ret);\

  1994 \

  1995   va_list args; \

  1996   va_start(args, methodID); \

  1997   JavaValue jvalue(Tag); \

  1998   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1999   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2000   va_end(args); \

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

  2002   return ret;\

  2003 JNI_END \

  2004 \

  2005 JNI_ENTRY(ResultType, \

  2006           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2007   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  2008   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  2009   ResultType ret;\

  2010   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2011                      (const ResultType&)ret);\

  2012 \

  2013   JavaValue jvalue(Tag); \

  2014   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2015   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2016   ret = jvalue.get_##ResultType(); \

  2017   return ret;\

  2018 JNI_END \

  2019 \

  2020 JNI_ENTRY(ResultType, \

  2021           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2022   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2023   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  2024   ResultType ret;\

  2025   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2026                      (const ResultType&)ret);\

  2027 \

  2028   JavaValue jvalue(Tag); \

  2029   JNI_ArgumentPusherArray ap(methodID, args); \

  2030   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2031   ret = jvalue.get_##ResultType(); \

  2032   return ret;\

  2033 JNI_END

  2035 // the runtime type of subword integral basic types is integer

  2036 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2037 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2038 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2039 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2041 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2042 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2043 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2044 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2045 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2048 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2049 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2050 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2052 #else /* USDT2 */

  2054 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2055                                     , EntryProbe, ReturnProbe)      \

  2056 \

  2057   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2058                           , ReturnProbe);\

  2059 \

  2060 JNI_ENTRY(ResultType, \

  2061           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2062   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2063 \

  2064   EntryProbe;\

  2065   ResultType ret;\

  2066   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2067                      (const ResultType&)ret);\

  2068 \

  2069   va_list args; \

  2070   va_start(args, methodID); \

  2071   JavaValue jvalue(Tag); \

  2072   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2073   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2074   va_end(args); \

  2075   ret = jvalue.get_##ResultType(); \

  2076   return ret;\

  2077 JNI_END

  2079 // the runtime type of subword integral basic types is integer

  2080 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2081                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2082                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2083 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

  2084                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2085                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2086 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

  2087                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2088                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2089 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

  2090                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2091                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2093 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2094                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2095                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2096 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

  2097                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2098                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2099 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

  2100                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2101 // Float and double probes don't return value because dtrace doesn't currently support it

  2102                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2103 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

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

  2105                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2106 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

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

  2108                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2110 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2111                                     , EntryProbe, ReturnProbe)      \

  2112 \

  2113   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2114                           , ReturnProbe);\

  2115 \

  2116 JNI_ENTRY(ResultType, \

  2117           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2118   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2119 \

  2120   EntryProbe;\

  2121   ResultType ret;\

  2122   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2123                      (const ResultType&)ret);\

  2124 \

  2125   JavaValue jvalue(Tag); \

  2126   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2127   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2128   ret = jvalue.get_##ResultType(); \

  2129   return ret;\

  2130 JNI_END

  2132 // the runtime type of subword integral basic types is integer

  2133 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

  2134                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2135                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2136 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

  2137                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2138                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2139 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

  2140                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2141                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2142 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

  2143                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2144                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2146 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2147                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2148                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2149 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

  2150                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2151                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2152 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

  2153                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2154 // Float and double probes don't return value because dtrace doesn't currently support it

  2155                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2156 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

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

  2158                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2159 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

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

  2161                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2163 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2164                                     , EntryProbe, ReturnProbe)      \

  2165 \

  2166   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2167                           , ReturnProbe);\

  2168 \

  2169 JNI_ENTRY(ResultType, \

  2170           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2171   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2172 \

  2173   EntryProbe;\

  2174   ResultType ret;\

  2175   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2176                      (const ResultType&)ret);\

  2177 \

  2178   JavaValue jvalue(Tag); \

  2179   JNI_ArgumentPusherArray ap(methodID, args); \

  2180   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2181   ret = jvalue.get_##ResultType(); \

  2182   return ret;\

  2183 JNI_END

  2185 // the runtime type of subword integral basic types is integer

  2186 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

  2187                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2188                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2189 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

  2190                             , HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2191                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2192 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

  2193                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2194                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2195 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

  2196                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2197                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2199 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2200                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2201                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2202 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

  2203                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2204                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2205 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

  2206                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2207 // Float and double probes don't return value because dtrace doesn't currently support it

  2208                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2209 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2210                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2211                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2212 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2213                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2214                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2216 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2217                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2218 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2219                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2220 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2221                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2222 #endif /* USDT2 */

  2224 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2225   JNIWrapper("CallNonvirtualVoidMethod");

  2227 #ifndef USDT2

  2228   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2229                env, obj, cls, methodID);

  2230 #else /* USDT2 */

  2231   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2232                env, obj, cls, (uintptr_t) methodID);

  2233 #endif /* USDT2 */

  2234   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2236   va_list args;

  2237   va_start(args, methodID);

  2238   JavaValue jvalue(T_VOID);

  2239   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  2241   va_end(args);

  2242 JNI_END

  2245 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2246   JNIWrapper("CallNonvirtualVoidMethodV");

  2248 #ifndef USDT2

  2249   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2250                env, obj, cls, methodID);

  2251 #else /* USDT2 */

  2252   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2253                env, obj, cls, (uintptr_t) methodID);

  2254 #endif /* USDT2 */

  2255   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2257   JavaValue jvalue(T_VOID);

  2258   JNI_ArgumentPusherVaArg ap(methodID, args);

  2259   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2260 JNI_END

  2263 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2264   JNIWrapper("CallNonvirtualVoidMethodA");

  2265 #ifndef USDT2

  2266   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2267                 env, obj, cls, methodID);

  2268 #else /* USDT2 */

  2269   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2270                 env, obj, cls, (uintptr_t) methodID);

  2271 #endif /* USDT2 */

  2272   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2273   JavaValue jvalue(T_VOID);

  2274   JNI_ArgumentPusherArray ap(methodID, args);

  2275   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2276 JNI_END

  2279 #ifndef USDT2

  2280 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2281 \

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

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

  2284   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2285 \

  2286 JNI_ENTRY(ResultType, \

  2287           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2288   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2289 \

  2290   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2291   ResultType ret = 0;\

  2292   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2293                      (const ResultType&)ret);\

  2294 \

  2295   va_list args; \

  2296   va_start(args, methodID); \

  2297   JavaValue jvalue(Tag); \

  2298   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2299   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2300   va_end(args); \

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

  2302   return ret;\

  2303 JNI_END \

  2304 \

  2305 JNI_ENTRY(ResultType, \

  2306           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2307   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2308   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2309   ResultType ret = 0;\

  2310   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2311                      (const ResultType&)ret);\

  2312 \

  2313   JavaValue jvalue(Tag); \

  2314   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2315   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2316   ret = jvalue.get_##ResultType(); \

  2317   return ret;\

  2318 JNI_END \

  2319 \

  2320 JNI_ENTRY(ResultType, \

  2321           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2322   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2323   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2324   ResultType ret = 0;\

  2325   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2326                      (const ResultType&)ret);\

  2327 \

  2328   JavaValue jvalue(Tag); \

  2329   JNI_ArgumentPusherArray ap(methodID, args); \

  2330   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2331   ret = jvalue.get_##ResultType(); \

  2332   return ret;\

  2333 JNI_END

  2335 // the runtime type of subword integral basic types is integer

  2336 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2337 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2338 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2339 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2341 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2342 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2343 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2344 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2345 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2348 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2349 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2350 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2352 #else /* USDT2 */

  2354 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2355                                 , EntryProbe, ResultProbe) \

  2356 \

  2357   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2358                           , ResultProbe);                               \

  2359 \

  2360 JNI_ENTRY(ResultType, \

  2361           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2362   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2363 \

  2364   EntryProbe; \

  2365   ResultType ret = 0;\

  2366   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2367                      (const ResultType&)ret);\

  2368 \

  2369   va_list args; \

  2370   va_start(args, methodID); \

  2371   JavaValue jvalue(Tag); \

  2372   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2373   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2374   va_end(args); \

  2375   ret = jvalue.get_##ResultType(); \

  2376   return ret;\

  2377 JNI_END

  2379 // the runtime type of subword integral basic types is integer

  2380 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2381                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2382                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2383 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

  2384                         , HOTSPOT_JNI_CALLSTATICBYTEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2385                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2386 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

  2387                         , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2388                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2389 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

  2390                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2391                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2393 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2394                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2395                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2396 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

  2397                         , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2398                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2399 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

  2400                         , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2401                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2402 // Float and double probes don't return value because dtrace doesn't currently support it

  2403 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2404                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2405                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2406 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

  2407                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2408                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2410 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2411                                 , EntryProbe, ResultProbe) \

  2412 \

  2413   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2414                           , ResultProbe);                               \

  2415 \

  2416 JNI_ENTRY(ResultType, \

  2417           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2418   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2419 \

  2420   EntryProbe; \

  2421   ResultType ret = 0;\

  2422   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2423                      (const ResultType&)ret);\

  2424 \

  2425   JavaValue jvalue(Tag); \

  2426   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2427   /* Make sure class is initialized before trying to invoke its method */ \

  2428   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2429   Klass::cast(k())->initialize(CHECK_0); \

  2430   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2431   va_end(args); \

  2432   ret = jvalue.get_##ResultType(); \

  2433   return ret;\

  2434 JNI_END

  2436 // the runtime type of subword integral basic types is integer

  2437 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

  2438                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2439                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2440 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

  2441                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2442                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2443 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

  2444                         , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2445                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2446 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

  2447                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2448                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2450 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2451                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2452                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2453 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

  2454                         , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2455                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2456 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

  2457                         , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2458                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2459 // Float and double probes don't return value because dtrace doesn't currently support it

  2460 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

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

  2462                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2463 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

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

  2465                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2467 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2468                                 , EntryProbe, ResultProbe) \

  2469 \

  2470   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2471                           , ResultProbe);                               \

  2472 \

  2473 JNI_ENTRY(ResultType, \

  2474           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2475   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2476 \

  2477   EntryProbe; \

  2478   ResultType ret = 0;\

  2479   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2480                      (const ResultType&)ret);\

  2481 \

  2482   JavaValue jvalue(Tag); \

  2483   JNI_ArgumentPusherArray ap(methodID, args); \

  2484   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2485   ret = jvalue.get_##ResultType(); \

  2486   return ret;\

  2487 JNI_END

  2489 // the runtime type of subword integral basic types is integer

  2490 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

  2491                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2492                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2493 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

  2494                         , HOTSPOT_JNI_CALLSTATICBYTEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2495                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2496 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

  2497                         , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2498                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2499 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

  2500                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2501                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2503 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2504                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2505                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2506 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

  2507                         , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2508                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2509 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

  2510                         , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2511                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2512 // Float and double probes don't return value because dtrace doesn't currently support it

  2513 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2514                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2515                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2516 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2517                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2518                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2520 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2521                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2522 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2523                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2524 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2525                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2526 #endif /* USDT2 */

  2528 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2529   JNIWrapper("CallStaticVoidMethod");

  2530 #ifndef USDT2

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

  2532 #else /* USDT2 */

  2533   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2534                                          env, cls, (uintptr_t) methodID);

  2535 #endif /* USDT2 */

  2536   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2538   va_list args;

  2539   va_start(args, methodID);

  2540   JavaValue jvalue(T_VOID);

  2541   JNI_ArgumentPusherVaArg ap(methodID, args);

  2542   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2543   va_end(args);

  2544 JNI_END

  2547 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2548   JNIWrapper("CallStaticVoidMethodV");

  2549 #ifndef USDT2

  2550   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2551 #else /* USDT2 */

  2552   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2553                                           env, cls, (uintptr_t) methodID);

  2554 #endif /* USDT2 */

  2555   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2557   JavaValue jvalue(T_VOID);

  2558   JNI_ArgumentPusherVaArg ap(methodID, args);

  2559   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2560 JNI_END

  2563 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2564   JNIWrapper("CallStaticVoidMethodA");

  2565 #ifndef USDT2

  2566   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2567 #else /* USDT2 */

  2568   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2569                                           env, cls, (uintptr_t) methodID);

  2570 #endif /* USDT2 */

  2571   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2573   JavaValue jvalue(T_VOID);

  2574   JNI_ArgumentPusherArray ap(methodID, args);

  2575   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2576 JNI_END

  2579 //

  2580 // Accessing Fields

  2581 //

  2584 #ifndef USDT2

  2585 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2586 #else /* USDT2 */

  2587 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2588                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2589 #endif /* USDT2 */

  2591 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2592           const char *name, const char *sig))

  2593   JNIWrapper("GetFieldID");

  2594 #ifndef USDT2

  2595   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2596 #else /* USDT2 */

  2597   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2598                                env, clazz, (char *) name, (char *) sig);

  2599 #endif /* USDT2 */

  2600   jfieldID ret = 0;

  2601   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2603   // The class should have been loaded (we have an instance of the class

  2604   // passed in) so the field and signature should already be in the symbol

  2605   // table.  If they're not there, the field doesn't exist.

  2606   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2607   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2608   if (fieldname == NULL || signame == NULL) {

  2609     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2610   }

  2611   KlassHandle k(THREAD,

  2612                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2613   // Make sure class is initialized before handing id's out to fields

  2614   Klass::cast(k())->initialize(CHECK_NULL);

  2616   fieldDescriptor fd;

  2617   if (!Klass::cast(k())->oop_is_instance() ||

  2618       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2619     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2620   }

  2622   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2623   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2624   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2625   return ret;

  2626 JNI_END

  2629 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2630   JNIWrapper("GetObjectField");

  2631 #ifndef USDT2

  2632   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2633 #else /* USDT2 */

  2634   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2635                                    env, obj, (uintptr_t) fieldID);

  2636 #endif /* USDT2 */

  2637   oop o = JNIHandles::resolve_non_null(obj);

  2638   Klass* k = o->klass();

  2639   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2640   // Keep JVMTI addition small and only check enabled flag here.

  2641   // jni_GetField_probe() assumes that is okay to create handles.

  2642   if (JvmtiExport::should_post_field_access()) {

  2643     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2644   }

  2645   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2646 #ifndef SERIALGC

  2647   // If G1 is enabled and we are accessing the value of the referent

  2648   // field in a reference object then we need to register a non-null

  2649   // referent with the SATB barrier.

  2650   if (UseG1GC) {

  2651     bool needs_barrier = false;

  2653     if (ret != NULL &&

  2654         offset == java_lang_ref_Reference::referent_offset &&

  2655         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2656       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2657       needs_barrier = true;

  2658     }

  2660     if (needs_barrier) {

  2661       oop referent = JNIHandles::resolve(ret);

  2662       G1SATBCardTableModRefBS::enqueue(referent);

  2663     }

  2664   }

  2665 #endif // SERIALGC

  2666 #ifndef USDT2

  2667   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2668 #else /* USDT2 */

  2669 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2670                                   ret);

  2671 #endif /* USDT2 */

  2672   return ret;

  2673 JNI_END

  2676 #ifndef USDT2

  2677 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2678 \

  2679   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2680 \

  2681 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2682   JNIWrapper("Get" XSTR(Result) "Field"); \

  2683 \

  2684   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2685   Return ret = 0;\

  2686   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2687 \

  2688   oop o = JNIHandles::resolve_non_null(obj); \

  2689   Klass* k = o->klass(); \

  2690   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2691   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2692   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2693   /* and creates a ResetNoHandleMark.                                   */ \

  2694   if (JvmtiExport::should_post_field_access()) { \

  2695     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2696   } \

  2697   ret = o->Fieldname##_field(offset); \

  2698   return ret; \

  2699 JNI_END

  2701 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2702 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2703 DEFINE_GETFIELD(jchar,    char,   Char)

  2704 DEFINE_GETFIELD(jshort,   short,  Short)

  2705 DEFINE_GETFIELD(jint,     int,    Int)

  2706 DEFINE_GETFIELD(jlong,    long,   Long)

  2707 DEFINE_GETFIELD(jfloat,   float,  Float)

  2708 DEFINE_GETFIELD(jdouble,  double, Double)

  2710 #else /* USDT2 */

  2712 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2713   , EntryProbe, ReturnProbe) \

  2714 \

  2715   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2716   , ReturnProbe); \

  2717 \

  2718 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2719   JNIWrapper("Get" XSTR(Result) "Field"); \

  2720 \

  2721   EntryProbe; \

  2722   Return ret = 0;\

  2723   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2724 \

  2725   oop o = JNIHandles::resolve_non_null(obj); \

  2726   Klass* k = o->klass(); \

  2727   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2728   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2729   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2730   /* and creates a ResetNoHandleMark.                                   */ \

  2731   if (JvmtiExport::should_post_field_access()) { \

  2732     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2733   } \

  2734   ret = o->Fieldname##_field(offset); \

  2735   return ret; \

  2736 JNI_END

  2738 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2739                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2740                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2741 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2742                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2743                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2744 DEFINE_GETFIELD(jchar,    char,   Char

  2745                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2746                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2747 DEFINE_GETFIELD(jshort,   short,  Short

  2748                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2749                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2750 DEFINE_GETFIELD(jint,     int,    Int

  2751                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2752                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2753 DEFINE_GETFIELD(jlong,    long,   Long

  2754                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2755                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2756 // Float and double probes don't return value because dtrace doesn't currently support it

  2757 DEFINE_GETFIELD(jfloat,   float,  Float

  2758                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2759                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2760 DEFINE_GETFIELD(jdouble,  double, Double

  2761                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2762                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2763 #endif /* USDT2 */

  2765 address jni_GetBooleanField_addr() {

  2766   return (address)jni_GetBooleanField;

  2767 }

  2768 address jni_GetByteField_addr() {

  2769   return (address)jni_GetByteField;

  2770 }

  2771 address jni_GetCharField_addr() {

  2772   return (address)jni_GetCharField;

  2773 }

  2774 address jni_GetShortField_addr() {

  2775   return (address)jni_GetShortField;

  2776 }

  2777 address jni_GetIntField_addr() {

  2778   return (address)jni_GetIntField;

  2779 }

  2780 address jni_GetLongField_addr() {

  2781   return (address)jni_GetLongField;

  2782 }

  2783 address jni_GetFloatField_addr() {

  2784   return (address)jni_GetFloatField;

  2785 }

  2786 address jni_GetDoubleField_addr() {

  2787   return (address)jni_GetDoubleField;

  2788 }

  2790 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2791   JNIWrapper("SetObjectField");

  2792 #ifndef USDT2

  2793   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2794 #else /* USDT2 */

  2795   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2796                                    env, obj, (uintptr_t) fieldID, value);

  2797 #endif /* USDT2 */

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

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

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

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

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

  2803   // and creates a ResetNoHandleMark.

  2804   if (JvmtiExport::should_post_field_modification()) {

  2805     jvalue field_value;

  2806     field_value.l = value;

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

  2808   }

  2809   o->obj_field_put(offset, JNIHandles::resolve(value));

  2810 #ifndef USDT2

  2811   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2812 #else /* USDT2 */

  2813   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2814 );

  2815 #endif /* USDT2 */

  2816 JNI_END

  2818 #ifndef USDT2

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

  2820 \

  2821 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2822   JNIWrapper("Set" XSTR(Result) "Field"); \

  2823 \

  2824   FP_SELECT_##Result( \

  2825     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2826     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2827 \

  2828   oop o = JNIHandles::resolve_non_null(obj); \

  2829   Klass* k = o->klass(); \

  2830   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2831   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2832   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2833   /* and creates a ResetNoHandleMark.                                   */ \

  2834   if (JvmtiExport::should_post_field_modification()) { \

  2835     jvalue field_value; \

  2836     field_value.unionType = value; \

  2837     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2838   } \

  2839   o->Fieldname##_field_put(offset, value); \

  2840   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2841 JNI_END

  2843 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2844 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2845 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2846 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2847 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2848 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2849 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2850 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2852 #else /* USDT2 */

  2854 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2855                         , EntryProbe, ReturnProbe) \

  2856 \

  2857 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2858   JNIWrapper("Set" XSTR(Result) "Field"); \

  2859 \

  2860   EntryProbe; \

  2861 \

  2862   oop o = JNIHandles::resolve_non_null(obj); \

  2863   Klass* k = o->klass(); \

  2864   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2865   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2866   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2867   /* and creates a ResetNoHandleMark.                                   */ \

  2868   if (JvmtiExport::should_post_field_modification()) { \

  2869     jvalue field_value; \

  2870     field_value.unionType = value; \

  2871     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2872   } \

  2873   o->Fieldname##_field_put(offset, value); \

  2874   ReturnProbe; \

  2875 JNI_END

  2877 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2878                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2879                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2880 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2881                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2882                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2883 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2884                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2885                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2886 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2887                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2888                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2889 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

  2890                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2891                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2892 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

  2893                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2894                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2895 // Float and double probes don't return value because dtrace doesn't currently support it

  2896 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2897                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2898                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2899 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2900                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2901                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2902 #endif /* USDT2 */

  2904 #ifndef USDT2

  2905 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2906 #else /* USDT2 */

  2907 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2908                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2909 #endif /* USDT2 */

  2911 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2912   JNIWrapper("ToReflectedField");

  2913 #ifndef USDT2

  2914   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2915                 env, cls, fieldID, isStatic);

  2916 #else /* USDT2 */

  2917   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2918                 env, cls, (uintptr_t) fieldID, isStatic);

  2919 #endif /* USDT2 */

  2920   jobject ret = NULL;

  2921   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2923   fieldDescriptor fd;

  2924   bool found = false;

  2925   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2927   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2929   if (isStatic) {

  2930     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2931     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2932     assert(id->is_static_field_id(), "invalid static field id");

  2933     found = id->find_local_field(&fd);

  2934   } else {

  2935     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2936     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2937     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2938   }

  2939   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2940   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2941   ret = JNIHandles::make_local(env, reflected);

  2942   return ret;

  2943 JNI_END

  2946 //

  2947 // Accessing Static Fields

  2948 //

  2949 #ifndef USDT2

  2950 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2951 #else /* USDT2 */

  2952 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2953                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2954 #endif /* USDT2 */

  2956 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2957           const char *name, const char *sig))

  2958   JNIWrapper("GetStaticFieldID");

  2959 #ifndef USDT2

  2960   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2961 #else /* USDT2 */

  2962   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2963                                      env, clazz, (char *) name, (char *) sig);

  2964 #endif /* USDT2 */

  2965   jfieldID ret = NULL;

  2966   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2968   // The class should have been loaded (we have an instance of the class

  2969   // passed in) so the field and signature should already be in the symbol

  2970   // table.  If they're not there, the field doesn't exist.

  2971   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2972   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2973   if (fieldname == NULL || signame == NULL) {

  2974     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2975   }

  2976   KlassHandle k(THREAD,

  2977                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2978   // Make sure class is initialized before handing id's out to static fields

  2979   Klass::cast(k())->initialize(CHECK_NULL);

  2981   fieldDescriptor fd;

  2982   if (!Klass::cast(k())->oop_is_instance() ||

  2983       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2984     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2985   }

  2987   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2988   JNIid* id = InstanceKlass::cast(fd.field_holder())->jni_id_for(fd.offset());

  2989   debug_only(id->set_is_static_field_id();)

  2991   debug_only(id->verify(fd.field_holder()));

  2993   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2994   return ret;

  2995 JNI_END

  2998 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2999   JNIWrapper("GetStaticObjectField");

  3000 #ifndef USDT2

  3001   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  3002 #else /* USDT2 */

  3003   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  3004                                          env, clazz, (uintptr_t) fieldID);

  3005 #endif /* USDT2 */

  3006 #if INCLUDE_JNI_CHECK

  3007   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  3008 #endif // INCLUDE_JNI_CHECK

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

  3017 #ifndef USDT2

  3018   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  3019 #else /* USDT2 */

  3020   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  3021                                           ret);

  3022 #endif /* USDT2 */

  3023   return ret;

  3024 JNI_END

  3026 #ifndef USDT2

  3027 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  3028 \

  3029   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3030 \

  3031 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3032   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3033   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3034   Return ret = 0;\

  3035   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3036                      (const Return&)ret);\

  3037   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3038   assert(id->is_static_field_id(), "invalid static field id"); \

  3039   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3040   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3041   if (JvmtiExport::should_post_field_access()) { \

  3042     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3043   } \

  3044   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3045   return ret;\

  3046 JNI_END

  3048 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3049 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3050 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3051 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3052 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3053 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3054 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3055 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3057 #else /* USDT2 */

  3059 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3060                               , EntryProbe, ReturnProbe) \

  3061 \

  3062   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3063                           , ReturnProbe);                                          \

  3064 \

  3065 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3066   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3067   EntryProbe; \

  3068   Return ret = 0;\

  3069   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3070                      (const Return&)ret);\

  3071   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3072   assert(id->is_static_field_id(), "invalid static field id"); \

  3073   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3074   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3075   if (JvmtiExport::should_post_field_access()) { \

  3076     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3077   } \

  3078   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3079   return ret;\

  3080 JNI_END

  3082 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3083                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3084 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3085                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3086 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3087                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3088 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3089                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3090 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3091                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3092 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3093                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3094 // Float and double probes don't return value because dtrace doesn't currently support it

  3095 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3096                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3097 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3098                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3099 #endif /* USDT2 */

  3101 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3102   JNIWrapper("SetStaticObjectField");

  3103 #ifndef USDT2

  3104   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3105 #else /* USDT2 */

  3106  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3107                                         env, clazz, (uintptr_t) fieldID, value);

  3108 #endif /* USDT2 */

  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.l = value;

  3116     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3117   }

  3118   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3119 #ifndef USDT2

  3120   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3121 #else /* USDT2 */

  3122   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3123                                           );

  3124 #endif /* USDT2 */

  3125 JNI_END

  3128 #ifndef USDT2

  3129 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3130 \

  3131 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3132   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3133   FP_SELECT_##Result( \

  3134      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3135      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3136 \

  3137   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3138   assert(id->is_static_field_id(), "invalid static field id"); \

  3139   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3140   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3141   if (JvmtiExport::should_post_field_modification()) { \

  3142     jvalue field_value; \

  3143     field_value.unionType = value; \

  3144     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3145   } \

  3146   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3147   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3148 JNI_END

  3150 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3151 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3152 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3153 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3154 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3155 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3156 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3157 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3159 #else /* USDT2 */

  3161 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3162                               , EntryProbe, ReturnProbe) \

  3163 \

  3164 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3165   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3166   EntryProbe; \

  3167 \

  3168   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3169   assert(id->is_static_field_id(), "invalid static field id"); \

  3170   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3171   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3172   if (JvmtiExport::should_post_field_modification()) { \

  3173     jvalue field_value; \

  3174     field_value.unionType = value; \

  3175     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3176   } \

  3177   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3178   ReturnProbe;\

  3179 JNI_END

  3181 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3182                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3183                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3184 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3185                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3186                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3187 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3188                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3189                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3190 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3191                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3192                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3193 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3194                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3195                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3196 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3197                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3198                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3199 // Float and double probes don't return value because dtrace doesn't currently support it

  3200 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3201                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3202                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3203 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3204                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3205                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3206 #endif /* USDT2 */

  3208 //

  3209 // String Operations

  3210 //

  3212 // Unicode Interface

  3214 #ifndef USDT2

  3215 DT_RETURN_MARK_DECL(NewString, jstring);

  3216 #else /* USDT2 */

  3217 DT_RETURN_MARK_DECL(NewString, jstring

  3218                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3219 #endif /* USDT2 */

  3221 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3222   JNIWrapper("NewString");

  3223 #ifndef USDT2

  3224   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3225 #else /* USDT2 */

  3226  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3227                              env, (uint16_t *) unicodeChars, len);

  3228 #endif /* USDT2 */

  3229   jstring ret = NULL;

  3230   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3231   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3232   ret = (jstring) JNIHandles::make_local(env, string);

  3233   return ret;

  3234 JNI_END

  3237 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3238   JNIWrapper("GetStringLength");

  3239 #ifndef USDT2

  3240   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3241 #else /* USDT2 */

  3242   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3243                                     env, string);

  3244 #endif /* USDT2 */

  3245   jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string));

  3246 #ifndef USDT2

  3247   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3248 #else /* USDT2 */

  3249  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3250                                     ret);

  3251 #endif /* USDT2 */

  3252   return ret;

  3253 JNI_END

  3256 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3257   JNIEnv *env, jstring string, jboolean *isCopy))

  3258   JNIWrapper("GetStringChars");

  3259 #ifndef USDT2

  3260   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3261 #else /* USDT2 */

  3262  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3263                                   env, string, (uintptr_t *) isCopy);

  3264 #endif /* USDT2 */

  3265   //%note jni_5

  3266   if (isCopy != NULL) {

  3267     *isCopy = JNI_TRUE;

  3268   }

  3269   oop s = JNIHandles::resolve_non_null(string);

  3270   int s_len = java_lang_String::length(s);

  3271   typeArrayOop s_value = java_lang_String::value(s);

  3272   int s_offset = java_lang_String::offset(s);

  3273   jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3274   if (s_len > 0) {

  3275     memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3276   }

  3277   buf[s_len] = 0;

  3278 #ifndef USDT2

  3279   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3280 #else /* USDT2 */

  3281   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3282                                     buf);

  3283 #endif /* USDT2 */

  3284   return buf;

  3285 JNI_END

  3288 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3289   JNIWrapper("ReleaseStringChars");

  3290 #ifndef USDT2

  3291   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3292 #else /* USDT2 */

  3293   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3294                                        env, str, (uint16_t *) chars);

  3295 #endif /* USDT2 */

  3296   //%note jni_6

  3297   if (chars != NULL) {

  3298     // Since String objects are supposed to be immutable, don't copy any

  3299     // new data back.  A bad user will have to go after the char array.

  3300     FreeHeap((void*) chars);

  3301   }

  3302 #ifndef USDT2

  3303   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3304 #else /* USDT2 */

  3305   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3306 );

  3307 #endif /* USDT2 */

  3308 JNI_END

  3311 // UTF Interface

  3313 #ifndef USDT2

  3314 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3315 #else /* USDT2 */

  3316 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3317                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3318 #endif /* USDT2 */

  3320 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3321   JNIWrapper("NewStringUTF");

  3322 #ifndef USDT2

  3323   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3324 #else /* USDT2 */

  3325   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3326                                  env, (char *) bytes);

  3327 #endif /* USDT2 */

  3328   jstring ret;

  3329   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3331   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3332   ret = (jstring) JNIHandles::make_local(env, result);

  3333   return ret;

  3334 JNI_END

  3337 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3338   JNIWrapper("GetStringUTFLength");

  3339 #ifndef USDT2

  3340   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3341 #else /* USDT2 */

  3342  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3343                                       env, string);

  3344 #endif /* USDT2 */

  3345   jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string));

  3346 #ifndef USDT2

  3347   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3348 #else /* USDT2 */

  3349   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3350                                         ret);

  3351 #endif /* USDT2 */

  3352   return ret;

  3353 JNI_END

  3356 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3357   JNIWrapper("GetStringUTFChars");

  3358 #ifndef USDT2

  3359   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3360 #else /* USDT2 */

  3361  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3362                                      env, string, (uintptr_t *) isCopy);

  3363 #endif /* USDT2 */

  3364   oop java_string = JNIHandles::resolve_non_null(string);

  3365   size_t length = java_lang_String::utf8_length(java_string);

  3366   char* result = AllocateHeap(length + 1, mtInternal);

  3367   java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3368   if (isCopy != NULL) *isCopy = JNI_TRUE;

  3369 #ifndef USDT2

  3370   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3371 #else /* USDT2 */

  3372  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3373                                       result);

  3374 #endif /* USDT2 */

  3375   return result;

  3376 JNI_END

  3379 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3380   JNIWrapper("ReleaseStringUTFChars");

  3381 #ifndef USDT2

  3382   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3383 #else /* USDT2 */

  3384  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3385                                          env, str, (char *) chars);

  3386 #endif /* USDT2 */

  3387   if (chars != NULL) {

  3388     FreeHeap((char*) chars);

  3389   }

  3390 #ifndef USDT2

  3391   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3392 #else /* USDT2 */

  3393 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3394 );

  3395 #endif /* USDT2 */

  3396 JNI_END

  3399 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3400   JNIWrapper("GetArrayLength");

  3401 #ifndef USDT2

  3402   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3403 #else /* USDT2 */

  3404  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3405                                   env, array);

  3406 #endif /* USDT2 */

  3407   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3408   assert(a->is_array(), "must be array");

  3409   jsize ret = a->length();

  3410 #ifndef USDT2

  3411   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3412 #else /* USDT2 */

  3413  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3414                                    ret);

  3415 #endif /* USDT2 */

  3416   return ret;

  3417 JNI_END

  3420 //

  3421 // Object Array Operations

  3422 //

  3424 #ifndef USDT2

  3425 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3426 #else /* USDT2 */

  3427 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3428                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3429 #endif /* USDT2 */

  3431 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3432   JNIWrapper("NewObjectArray");

  3433 #ifndef USDT2

  3434   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3435 #else /* USDT2 */

  3436  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3437                                   env, length, elementClass, initialElement);

  3438 #endif /* USDT2 */

  3439   jobjectArray ret = NULL;

  3440   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3441   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3442   Klass* ako = Klass::cast(ek())->array_klass(CHECK_NULL);

  3443   KlassHandle ak = KlassHandle(THREAD, ako);

  3444   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3445   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3446   oop initial_value = JNIHandles::resolve(initialElement);

  3447   if (initial_value != NULL) {  // array already initialized with NULL

  3448     for (int index = 0; index < length; index++) {

  3449       result->obj_at_put(index, initial_value);

  3450     }

  3451   }

  3452   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3453   return ret;

  3454 JNI_END

  3456 #ifndef USDT2

  3457 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3458 #else /* USDT2 */

  3459 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3460                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3461 #endif /* USDT2 */

  3463 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3464   JNIWrapper("GetObjectArrayElement");

  3465 #ifndef USDT2

  3466   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3467 #else /* USDT2 */

  3468  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3469                                          env, array, index);

  3470 #endif /* USDT2 */

  3471   jobject ret = NULL;

  3472   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3473   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3474   if (a->is_within_bounds(index)) {

  3475     ret = JNIHandles::make_local(env, a->obj_at(index));

  3476     return ret;

  3477   } else {

  3478     char buf[jintAsStringSize];

  3479     sprintf(buf, "%d", index);

  3480     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3481   }

  3482 JNI_END

  3484 #ifndef USDT2

  3485 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3486 #else /* USDT2 */

  3487 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3488                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3489 #endif /* USDT2 */

  3491 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3492   JNIWrapper("SetObjectArrayElement");

  3493 #ifndef USDT2

  3494   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3495 #else /* USDT2 */

  3496  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3497                                          env, array, index, value);

  3498 #endif /* USDT2 */

  3499   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3501   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3502   oop v = JNIHandles::resolve(value);

  3503   if (a->is_within_bounds(index)) {

  3504     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3505       a->obj_at_put(index, v);

  3506     } else {

  3507       THROW(vmSymbols::java_lang_ArrayStoreException());

  3508     }

  3509   } else {

  3510     char buf[jintAsStringSize];

  3511     sprintf(buf, "%d", index);

  3512     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3513   }

  3514 JNI_END

  3517 #ifndef USDT2

  3518 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3519 \

  3520   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3521 \

  3522 JNI_ENTRY(Return, \

  3523           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3524   JNIWrapper("New" XSTR(Result) "Array"); \

  3525   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3526   Return ret = NULL;\

  3527   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3528 \

  3529   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3530   ret = (Return) JNIHandles::make_local(env, obj); \

  3531   return ret;\

  3532 JNI_END

  3534 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3535 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3536 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3537 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3538 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3539 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3540 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3541 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3543 #else /* USDT2 */

  3545 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3546                               ,EntryProbe,ReturnProbe)  \

  3547 \

  3548   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3549                       , ReturnProbe); \

  3550 \

  3551 JNI_ENTRY(Return, \

  3552           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3553   JNIWrapper("New" XSTR(Result) "Array"); \

  3554   EntryProbe; \

  3555   Return ret = NULL;\

  3556   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3557 \

  3558   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3559   ret = (Return) JNIHandles::make_local(env, obj); \

  3560   return ret;\

  3561 JNI_END

  3563 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3564                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3565                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3566 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3567                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3568                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3569 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3570                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3571                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3572 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3573                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3574                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3575 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3576                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3577                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3578 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3579                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3580                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3581 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3582                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3583                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3584 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3585                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3586                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3587 #endif /* USDT2 */

  3589 // Return an address which will fault if the caller writes to it.

  3591 static char* get_bad_address() {

  3592   static char* bad_address = NULL;

  3593   if (bad_address == NULL) {

  3594     size_t size = os::vm_allocation_granularity();

  3595     bad_address = os::reserve_memory(size);

  3596     if (bad_address != NULL) {

  3597       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3598                          /*is_committed*/false);

  3599     }

  3600   }

  3601   return bad_address;

  3602 }

  3605 #ifndef USDT2

  3606 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3607 \

  3608 JNI_QUICK_ENTRY(ElementType*, \

  3609           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3610   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3611   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3612   /* allocate an chunk of memory in c land */ \

  3613   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3614   ElementType* result; \

  3615   int len = a->length(); \

  3616   if (len == 0) { \

  3617     /* Empty array: legal but useless, can't return NULL. \

  3618      * Return a pointer to something useless. \

  3619      * Avoid asserts in typeArrayOop. */ \

  3620     result = (ElementType*)get_bad_address(); \

  3621   } else { \

  3622     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3623     /* copy the array to the c chunk */ \

  3624     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3625   } \

  3626   if (isCopy) *isCopy = JNI_TRUE; \

  3627   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3628   return result; \

  3629 JNI_END

  3631 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3632 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3633 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3634 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3635 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3636 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3637 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3638 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3640 #else /* USDT2 */

  3642 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3643                                       , EntryProbe, ReturnProbe) \

  3644 \

  3645 JNI_QUICK_ENTRY(ElementType*, \

  3646           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3647   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3648   EntryProbe; \

  3649   /* allocate an chunk of memory in c land */ \

  3650   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3651   ElementType* result; \

  3652   int len = a->length(); \

  3653   if (len == 0) { \

  3654     /* Empty array: legal but useless, can't return NULL. \

  3655      * Return a pointer to something useless. \

  3656      * Avoid asserts in typeArrayOop. */ \

  3657     result = (ElementType*)get_bad_address(); \

  3658   } else { \

  3659     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3660     /* copy the array to the c chunk */ \

  3661     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3662   } \

  3663   if (isCopy) *isCopy = JNI_TRUE; \

  3664   ReturnProbe; \

  3665   return result; \

  3666 JNI_END

  3668 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3669                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3670                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3671 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3672                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3673                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3674 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3675                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3676                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3677 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3678                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3679                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3680 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3681                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3682                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3683 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3684                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3685                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3686 // Float and double probes don't return value because dtrace doesn't currently support it

  3687 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3688                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3689                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3690 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3691                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3692                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3693 #endif /* USDT2 */

  3695 #ifndef USDT2

  3696 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3697 \

  3698 JNI_QUICK_ENTRY(void, \

  3699           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3700                                              ElementType *buf, jint mode)) \

  3701   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3702   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3703   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3704   int len = a->length(); \

  3705   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3706     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3707       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3708     } \

  3709     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3710       FreeHeap(buf); \

  3711     } \

  3712   } \

  3713   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3714 JNI_END

  3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3722 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3723 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3725 #else /* USDT2 */

  3727 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3728                                           , EntryProbe, ReturnProbe);\

  3729 \

  3730 JNI_QUICK_ENTRY(void, \

  3731           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3732                                              ElementType *buf, jint mode)) \

  3733   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3734   EntryProbe; \

  3735   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3736   int len = a->length(); \

  3737   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3738     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3739       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3740     } \

  3741     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3742       FreeHeap(buf); \

  3743     } \

  3744   } \

  3745   ReturnProbe; \

  3746 JNI_END

  3748 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3749                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3750                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3751 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3752                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3753                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3754 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3755                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3756                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3757 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3758                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3759                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3760 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3761                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3762                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3763 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3764                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3765                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3766 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3767                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3768                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3769 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3770                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3771                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3772 #endif /* USDT2 */

  3774 #ifndef USDT2

  3775 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3776   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3777 \

  3778 JNI_ENTRY(void, \

  3779 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3780              jsize len, ElementType *buf)) \

  3781   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3782   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3783   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3784   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3785   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3786     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3787   } else { \

  3788     if (len > 0) { \

  3789       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3790       memcpy((u_char*) buf, \

  3791              (u_char*) src->Tag##_at_addr(start), \

  3792              len << sc);                          \

  3793     } \

  3794   } \

  3795 JNI_END

  3797 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3798 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3799 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3800 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3801 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3802 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3803 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3804 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3806 #else /* USDT2 */

  3808 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3809                                     , EntryProbe, ReturnProbe); \

  3810   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3811                            , ReturnProbe); \

  3812 \

  3813 JNI_ENTRY(void, \

  3814 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3815              jsize len, ElementType *buf)) \

  3816   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3817   EntryProbe; \

  3818   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3819   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3820   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3821     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3822   } else { \

  3823     if (len > 0) { \

  3824       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3825       memcpy((u_char*) buf, \

  3826              (u_char*) src->Tag##_at_addr(start), \

  3827              len << sc);                          \

  3828     } \

  3829   } \

  3830 JNI_END

  3832 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3833                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3834                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3835 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3836                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3837                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3838 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3839                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3840                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3841 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3842                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3843                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3844 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3845                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3846                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3847 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3848                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3849                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3850 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3851                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3852                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3853 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3854                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3855                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3856 #endif /* USDT2 */

  3858 #ifndef USDT2

  3859 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3860   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3861 \

  3862 JNI_ENTRY(void, \

  3863 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3864              jsize len, const ElementType *buf)) \

  3865   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3866   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3867   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3868   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3869   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3870     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3871   } else { \

  3872     if (len > 0) { \

  3873       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3874       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3875              (u_char*) buf, \

  3876              len << sc);    \

  3877     } \

  3878   } \

  3879 JNI_END

  3881 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3882 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3883 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3884 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3885 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3886 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3887 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3888 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3890 #else /* USDT2 */

  3892 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3893                                     , EntryProbe, ReturnProbe); \

  3894   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3895                            ,ReturnProbe);           \

  3896 \

  3897 JNI_ENTRY(void, \

  3898 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3899              jsize len, const ElementType *buf)) \

  3900   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3901   EntryProbe; \

  3902   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3903   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3904   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3905     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3906   } else { \

  3907     if (len > 0) { \

  3908       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3909       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3910              (u_char*) buf, \

  3911              len << sc);    \

  3912     } \

  3913   } \

  3914 JNI_END

  3916 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3917                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3918                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3919 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3920                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3921                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3922 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3923                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3924                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3925 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3926                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3927                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3928 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3929                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3930                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3931 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3932                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3933                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3934 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3935                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3936                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3937 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3938                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3939                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3940 #endif /* USDT2 */

  3943 //

  3944 // Interception of natives

  3945 //

  3947 // The RegisterNatives call being attempted tried to register with a method that

  3948 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3949 // to see if the native method is now wrapped with the prefixes.  See the

  3950 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3951 static Method* find_prefixed_native(KlassHandle k,

  3952                                       Symbol* name, Symbol* signature, TRAPS) {

  3953 #if INCLUDE_JVMTI

  3954   ResourceMark rm(THREAD);

  3955   Method* method;

  3956   int name_len = name->utf8_length();

  3957   char* name_str = name->as_utf8();

  3958   int prefix_count;

  3959   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3960   for (int i = 0; i < prefix_count; i++) {

  3961     char* prefix = prefixes[i];

  3962     int prefix_len = (int)strlen(prefix);

  3964     // try adding this prefix to the method name and see if it matches another method name

  3965     int trial_len = name_len + prefix_len;

  3966     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3967     strcpy(trial_name_str, prefix);

  3968     strcat(trial_name_str, name_str);

  3969     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3970     if (trial_name == NULL) {

  3971       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3972     }

  3973     method = Klass::cast(k())->lookup_method(trial_name, signature);

  3974     if (method == NULL) {

  3975       continue; // signature doesn't match, try the next prefix

  3976     }

  3977     if (method->is_native()) {

  3978       method->set_is_prefixed_native();

  3979       return method; // wahoo, we found a prefixed version of the method, return it

  3980     }

  3981     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3982     name_len = trial_len;

  3983     name_str = trial_name_str;

  3984   }

  3985 #endif // INCLUDE_JVMTI

  3986   return NULL; // not found

  3987 }

  3989 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3990   Method* method = Klass::cast(k())->lookup_method(name, signature);

  3991   if (method == NULL) {

  3992     ResourceMark rm;

  3993     stringStream st;

  3994     st.print("Method %s name or signature does not match",

  3995              Method::name_and_sig_as_C_string(Klass::cast(k()), name, signature));

  3996     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3997   }

  3998   if (!method->is_native()) {

  3999     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  4000     method = find_prefixed_native(k, name, signature, THREAD);

  4001     if (method == NULL) {

  4002       ResourceMark rm;

  4003       stringStream st;

  4004       st.print("Method %s is not declared as native",

  4005                Method::name_and_sig_as_C_string(Klass::cast(k()), name, signature));

  4006       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4007     }

  4008   }

  4010   if (entry != NULL) {

  4011     method->set_native_function(entry,

  4012       Method::native_bind_event_is_interesting);

  4013   } else {

  4014     method->clear_native_function();

  4015   }

  4016   if (PrintJNIResolving) {

  4017     ResourceMark rm(THREAD);

  4018     tty->print_cr("[Registering JNI native method %s.%s]",

  4019       Klass::cast(method->method_holder())->external_name(),

  4020       method->name()->as_C_string());

  4021   }

  4022   return true;

  4023 }

  4025 #ifndef USDT2

  4026 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4027 #else /* USDT2 */

  4028 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4029                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4030 #endif /* USDT2 */

  4032 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4033                                     const JNINativeMethod *methods,

  4034                                     jint nMethods))

  4035   JNIWrapper("RegisterNatives");

  4036 #ifndef USDT2

  4037   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4038 #else /* USDT2 */

  4039   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4040                                     env, clazz, (void *) methods, nMethods);

  4041 #endif /* USDT2 */

  4042   jint ret = 0;

  4043   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4045   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4047   for (int index = 0; index < nMethods; index++) {

  4048     const char* meth_name = methods[index].name;

  4049     const char* meth_sig = methods[index].signature;

  4050     int meth_name_len = (int)strlen(meth_name);

  4052     // The class should have been loaded (we have an instance of the class

  4053     // passed in) so the method and signature should already be in the symbol

  4054     // table.  If they're not there, the method doesn't exist.

  4055     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4056     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4058     if (name == NULL || signature == NULL) {

  4059       ResourceMark rm;

  4060       stringStream st;

  4061       st.print("Method %s.%s%s not found", Klass::cast(h_k())->external_name(), meth_name, meth_sig);

  4062       // Must return negative value on failure

  4063       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4064     }

  4066     bool res = register_native(h_k, name, signature,

  4067                                (address) methods[index].fnPtr, THREAD);

  4068     if (!res) {

  4069       ret = -1;

  4070       break;

  4071     }

  4072   }

  4073   return ret;

  4074 JNI_END

  4077 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4078   JNIWrapper("UnregisterNatives");

  4079 #ifndef USDT2

  4080   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4081 #else /* USDT2 */

  4082  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4083                                      env, clazz);

  4084 #endif /* USDT2 */

  4085   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4086   //%note jni_2

  4087   if (Klass::cast(k)->oop_is_instance()) {

  4088     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4089       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4090       if (m->is_native()) {

  4091         m->clear_native_function();

  4092         m->set_signature_handler(NULL);

  4093       }

  4094     }

  4095   }

  4096 #ifndef USDT2

  4097   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4098 #else /* USDT2 */

  4099  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4100                                       0);

  4101 #endif /* USDT2 */

  4102   return 0;

  4103 JNI_END

  4105 //

  4106 // Monitor functions

  4107 //

  4109 #ifndef USDT2

  4110 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4111 #else /* USDT2 */

  4112 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4113                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4114 #endif /* USDT2 */

  4116 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4117 #ifndef USDT2

  4118   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4119 #else /* USDT2 */

  4120  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4121                                 env, jobj);

  4122 #endif /* USDT2 */

  4123   jint ret = JNI_ERR;

  4124   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4126   // If the object is null, we can't do anything with it

  4127   if (jobj == NULL) {

  4128     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4129   }

  4131   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4132   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4133   ret = JNI_OK;

  4134   return ret;

  4135 JNI_END

  4137 #ifndef USDT2

  4138 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4139 #else /* USDT2 */

  4140 DT_RETURN_MARK_DECL(MonitorExit, jint

  4141                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4142 #endif /* USDT2 */

  4144 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4145 #ifndef USDT2

  4146   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4147 #else /* USDT2 */

  4148  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4149                                env, jobj);

  4150 #endif /* USDT2 */

  4151   jint ret = JNI_ERR;

  4152   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4154   // Don't do anything with a null object

  4155   if (jobj == NULL) {

  4156     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4157   }

  4159   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4160   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4162   ret = JNI_OK;

  4163   return ret;

  4164 JNI_END

  4166 //

  4167 // Extensions

  4168 //

  4170 #ifndef USDT2

  4171 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4172 #else /* USDT2 */

  4173 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4174                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4175 #endif /* USDT2 */

  4177 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4178   JNIWrapper("GetStringRegion");

  4179 #ifndef USDT2

  4180   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4181 #else /* USDT2 */

  4182  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4183                                    env, string, start, len, buf);

  4184 #endif /* USDT2 */

  4185   DT_VOID_RETURN_MARK(GetStringRegion);

  4186   oop s = JNIHandles::resolve_non_null(string);

  4187   int s_len = java_lang_String::length(s);

  4188   if (start < 0 || len < 0 || start + len > s_len) {

  4189     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4190   } else {

  4191     if (len > 0) {

  4192       int s_offset = java_lang_String::offset(s);

  4193       typeArrayOop s_value = java_lang_String::value(s);

  4194       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4195     }

  4196   }

  4197 JNI_END

  4199 #ifndef USDT2

  4200 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4201 #else /* USDT2 */

  4202 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4203                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4204 #endif /* USDT2 */

  4206 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4207   JNIWrapper("GetStringUTFRegion");

  4208 #ifndef USDT2

  4209   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4210 #else /* USDT2 */

  4211  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4212                                       env, string, start, len, buf);

  4213 #endif /* USDT2 */

  4214   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4215   oop s = JNIHandles::resolve_non_null(string);

  4216   int s_len = java_lang_String::length(s);

  4217   if (start < 0 || len < 0 || start + len > s_len) {

  4218     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4219   } else {

  4220     //%note jni_7

  4221     if (len > 0) {

  4222       ResourceMark rm(THREAD);

  4223       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4224       int utf_len = (int)strlen(utf_region);

  4225       memcpy(buf, utf_region, utf_len);

  4226       buf[utf_len] = 0;

  4227     } else {

  4228       // JDK null-terminates the buffer even in len is zero

  4229       if (buf != NULL) {

  4230         buf[0] = 0;

  4231       }

  4232     }

  4233   }

  4234 JNI_END

  4237 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4238   JNIWrapper("GetPrimitiveArrayCritical");

  4239 #ifndef USDT2

  4240   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4241 #else /* USDT2 */

  4242  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4243                                              env, array, (uintptr_t *) isCopy);

  4244 #endif /* USDT2 */

  4245   GC_locker::lock_critical(thread);

  4246   if (isCopy != NULL) {

  4247     *isCopy = JNI_FALSE;

  4248   }

  4249   oop a = JNIHandles::resolve_non_null(array);

  4250   assert(a->is_array(), "just checking");

  4251   BasicType type;

  4252   if (a->is_objArray()) {

  4253     type = T_OBJECT;

  4254   } else {

  4255     type = TypeArrayKlass::cast(a->klass())->element_type();

  4256   }

  4257   void* ret = arrayOop(a)->base(type);

  4258 #ifndef USDT2

  4259   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4260 #else /* USDT2 */

  4261  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4262                                               ret);

  4263 #endif /* USDT2 */

  4264   return ret;

  4265 JNI_END

  4268 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4269   JNIWrapper("ReleasePrimitiveArrayCritical");

  4270 #ifndef USDT2

  4271   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4272 #else /* USDT2 */

  4273   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4274                                                   env, array, carray, mode);

  4275 #endif /* USDT2 */

  4276   // The array, carray and mode arguments are ignored

  4277   GC_locker::unlock_critical(thread);

  4278 #ifndef USDT2

  4279   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4280 #else /* USDT2 */

  4281 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4282 );

  4283 #endif /* USDT2 */

  4284 JNI_END

  4287 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4288   JNIWrapper("GetStringCritical");

  4289 #ifndef USDT2

  4290   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4291 #else /* USDT2 */

  4292   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4293                                       env, string, (uintptr_t *) isCopy);

  4294 #endif /* USDT2 */

  4295   GC_locker::lock_critical(thread);

  4296   if (isCopy != NULL) {

  4297     *isCopy = JNI_FALSE;

  4298   }

  4299   oop s = JNIHandles::resolve_non_null(string);

  4300   int s_len = java_lang_String::length(s);

  4301   typeArrayOop s_value = java_lang_String::value(s);

  4302   int s_offset = java_lang_String::offset(s);

  4303   const jchar* ret;

  4304   if (s_len > 0) {

  4305     ret = s_value->char_at_addr(s_offset);

  4306   } else {

  4307     ret = (jchar*) s_value->base(T_CHAR);

  4308   }

  4309 #ifndef USDT2

  4310   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4311 #else /* USDT2 */

  4312  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4313                                       (uint16_t *) ret);

  4314 #endif /* USDT2 */

  4315   return ret;

  4316 JNI_END

  4319 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4320   JNIWrapper("ReleaseStringCritical");

  4321 #ifndef USDT2

  4322   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4323 #else /* USDT2 */

  4324   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4325                                           env, str, (uint16_t *) chars);

  4326 #endif /* USDT2 */

  4327   // The str and chars arguments are ignored

  4328   GC_locker::unlock_critical(thread);

  4329 #ifndef USDT2

  4330   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4331 #else /* USDT2 */

  4332 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4333 );

  4334 #endif /* USDT2 */

  4335 JNI_END

  4338 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4339   JNIWrapper("jni_NewWeakGlobalRef");

  4340 #ifndef USDT2

  4341   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4342 #else /* USDT2 */

  4343  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4344                                     env, ref);

  4345 #endif /* USDT2 */

  4346   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4347   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4348 #ifndef USDT2

  4349   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4350 #else /* USDT2 */

  4351  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4352                                      ret);

  4353 #endif /* USDT2 */

  4354   return ret;

  4355 JNI_END

  4357 // Must be JNI_ENTRY (with HandleMark)

  4358 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4359   JNIWrapper("jni_DeleteWeakGlobalRef");

  4360 #ifndef USDT2

  4361   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4362 #else /* USDT2 */

  4363   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4364                                         env, ref);

  4365 #endif /* USDT2 */

  4366   JNIHandles::destroy_weak_global(ref);

  4367 #ifndef USDT2

  4368   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4369 #else /* USDT2 */

  4370   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4371                                          );

  4372 #endif /* USDT2 */

  4373 JNI_END

  4376 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4377   JNIWrapper("jni_ExceptionCheck");

  4378 #ifndef USDT2

  4379   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4380 #else /* USDT2 */

  4381  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4382                                   env);

  4383 #endif /* USDT2 */

  4384   jni_check_async_exceptions(thread);

  4385   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4386 #ifndef USDT2

  4387   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4388 #else /* USDT2 */

  4389  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4390                                    ret);

  4391 #endif /* USDT2 */

  4392   return ret;

  4393 JNI_END

  4396 // Initialization state for three routines below relating to

  4397 // java.nio.DirectBuffers

  4398 static          jint directBufferSupportInitializeStarted = 0;

  4399 static volatile jint directBufferSupportInitializeEnded   = 0;

  4400 static volatile jint directBufferSupportInitializeFailed  = 0;

  4401 static jclass    bufferClass                 = NULL;

  4402 static jclass    directBufferClass           = NULL;

  4403 static jclass    directByteBufferClass       = NULL;

  4404 static jmethodID directByteBufferConstructor = NULL;

  4405 static jfieldID  directBufferAddressField    = NULL;

  4406 static jfieldID  bufferCapacityField         = NULL;

  4408 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4409   Handle loader;            // null (bootstrap) loader

  4410   Handle protection_domain; // null protection domain

  4412   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4413   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4415   if (TraceClassResolution && result != NULL) {

  4416     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4417   }

  4418   return result;

  4419 }

  4421 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4422 // circumvent any security checks that would be done by jni_FindClass.

  4423 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4424 {

  4425   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4426   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4427   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4428   return true;

  4429 }

  4430 JNI_END

  4433 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4434   if (directBufferSupportInitializeFailed) {

  4435     return false;

  4436   }

  4438   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4439     if (!lookupDirectBufferClasses(env)) {

  4440       directBufferSupportInitializeFailed = 1;

  4441       return false;

  4442     }

  4444     // Make global references for these

  4445     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4446     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4447     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4449     // Get needed field and method IDs

  4450     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4451     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4452     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4454     if ((directByteBufferConstructor == NULL) ||

  4455         (directBufferAddressField    == NULL) ||

  4456         (bufferCapacityField         == NULL)) {

  4457       directBufferSupportInitializeFailed = 1;

  4458       return false;

  4459     }

  4461     directBufferSupportInitializeEnded = 1;

  4462   } else {

  4463     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4464       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4465       // os::sleep which requires the VM state transition. On other platforms, it

  4466       // is not necessary. The following call to change the VM state is purposely

  4467       // put inside the loop to avoid potential deadlock when multiple threads

  4468       // try to call this method. See 6791815 for more details.

  4469       ThreadInVMfromNative tivn(thread);

  4470       os::yield_all();

  4471     }

  4472   }

  4474   return !directBufferSupportInitializeFailed;

  4475 }

  4477 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4478 {

  4479   // thread_from_jni_environment() will block if VM is gone.

  4480   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4482   JNIWrapper("jni_NewDirectByteBuffer");

  4483 #ifndef USDT2

  4484   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4485 #else /* USDT2 */

  4486  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4487                                        env, address, capacity);

  4488 #endif /* USDT2 */

  4490   if (!directBufferSupportInitializeEnded) {

  4491     if (!initializeDirectBufferSupport(env, thread)) {

  4492 #ifndef USDT2

  4493       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4494 #else /* USDT2 */

  4495       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4496                                              NULL);

  4497 #endif /* USDT2 */

  4498       return NULL;

  4499     }

  4500   }

  4502   // Being paranoid about accidental sign extension on address

  4503   jlong addr = (jlong) ((uintptr_t) address);

  4504   // NOTE that package-private DirectByteBuffer constructor currently

  4505   // takes int capacity

  4506   jint  cap  = (jint)  capacity;

  4507   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4508 #ifndef USDT2

  4509   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4510 #else /* USDT2 */

  4511   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4512                                          ret);

  4513 #endif /* USDT2 */

  4514   return ret;

  4515 }

  4517 #ifndef USDT2

  4518 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4519 #else /* USDT2 */

  4520 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4521                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4522 #endif /* USDT2 */

  4524 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4525 {

  4526   // thread_from_jni_environment() will block if VM is gone.

  4527   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4529   JNIWrapper("jni_GetDirectBufferAddress");

  4530 #ifndef USDT2

  4531   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4532 #else /* USDT2 */

  4533   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4534                                            env, buf);

  4535 #endif /* USDT2 */

  4536   void* ret = NULL;

  4537   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4539   if (!directBufferSupportInitializeEnded) {

  4540     if (!initializeDirectBufferSupport(env, thread)) {

  4541       return 0;

  4542     }

  4543   }

  4545   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4546     return 0;

  4547   }

  4549   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4550   return ret;

  4551 }

  4553 #ifndef USDT2

  4554 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4555 #else /* USDT2 */

  4556 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4557                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4558 #endif /* USDT2 */

  4560 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4561 {

  4562   // thread_from_jni_environment() will block if VM is gone.

  4563   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4565   JNIWrapper("jni_GetDirectBufferCapacity");

  4566 #ifndef USDT2

  4567   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4568 #else /* USDT2 */

  4569   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4570                                             env, buf);

  4571 #endif /* USDT2 */

  4572   jlong ret = -1;

  4573   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4575   if (!directBufferSupportInitializeEnded) {

  4576     if (!initializeDirectBufferSupport(env, thread)) {

  4577       ret = 0;

  4578       return ret;

  4579     }

  4580   }

  4582   if (buf == NULL) {

  4583     return -1;

  4584   }

  4586   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4587     return -1;

  4588   }

  4590   // NOTE that capacity is currently an int in the implementation

  4591   ret = env->GetIntField(buf, bufferCapacityField);

  4592   return ret;

  4593 }

  4596 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4597   JNIWrapper("GetVersion");

  4598 #ifndef USDT2

  4599   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4600 #else /* USDT2 */

  4601   HOTSPOT_JNI_GETVERSION_ENTRY(

  4602                                env);

  4603 #endif /* USDT2 */

  4604 #ifndef USDT2

  4605   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4606 #else /* USDT2 */

  4607   HOTSPOT_JNI_GETVERSION_RETURN(

  4608                                 CurrentVersion);

  4609 #endif /* USDT2 */

  4610   return CurrentVersion;

  4611 JNI_END

  4613 extern struct JavaVM_ main_vm;

  4615 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4616   JNIWrapper("jni_GetJavaVM");

  4617 #ifndef USDT2

  4618   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4619 #else /* USDT2 */

  4620   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4621                               env, (void **) vm);

  4622 #endif /* USDT2 */

  4623   *vm  = (JavaVM *)(&main_vm);

  4624 #ifndef USDT2

  4625   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4626 #else /* USDT2 */

  4627   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4628                                JNI_OK);

  4629 #endif /* USDT2 */

  4630   return JNI_OK;

  4631 JNI_END

  4633 // Structure containing all jni functions

  4634 struct JNINativeInterface_ jni_NativeInterface = {

  4635     NULL,

  4636     NULL,

  4637     NULL,

  4639     NULL,

  4641     jni_GetVersion,

  4643     jni_DefineClass,

  4644     jni_FindClass,

  4646     jni_FromReflectedMethod,

  4647     jni_FromReflectedField,

  4649     jni_ToReflectedMethod,

  4651     jni_GetSuperclass,

  4652     jni_IsAssignableFrom,

  4654     jni_ToReflectedField,

  4656     jni_Throw,

  4657     jni_ThrowNew,

  4658     jni_ExceptionOccurred,

  4659     jni_ExceptionDescribe,

  4660     jni_ExceptionClear,

  4661     jni_FatalError,

  4663     jni_PushLocalFrame,

  4664     jni_PopLocalFrame,

  4666     jni_NewGlobalRef,

  4667     jni_DeleteGlobalRef,

  4668     jni_DeleteLocalRef,

  4669     jni_IsSameObject,

  4671     jni_NewLocalRef,

  4672     jni_EnsureLocalCapacity,

  4674     jni_AllocObject,

  4675     jni_NewObject,

  4676     jni_NewObjectV,

  4677     jni_NewObjectA,

  4679     jni_GetObjectClass,

  4680     jni_IsInstanceOf,

  4682     jni_GetMethodID,

  4684     jni_CallObjectMethod,

  4685     jni_CallObjectMethodV,

  4686     jni_CallObjectMethodA,

  4687     jni_CallBooleanMethod,

  4688     jni_CallBooleanMethodV,

  4689     jni_CallBooleanMethodA,

  4690     jni_CallByteMethod,

  4691     jni_CallByteMethodV,

  4692     jni_CallByteMethodA,

  4693     jni_CallCharMethod,

  4694     jni_CallCharMethodV,

  4695     jni_CallCharMethodA,

  4696     jni_CallShortMethod,

  4697     jni_CallShortMethodV,

  4698     jni_CallShortMethodA,

  4699     jni_CallIntMethod,

  4700     jni_CallIntMethodV,

  4701     jni_CallIntMethodA,

  4702     jni_CallLongMethod,

  4703     jni_CallLongMethodV,

  4704     jni_CallLongMethodA,

  4705     jni_CallFloatMethod,

  4706     jni_CallFloatMethodV,

  4707     jni_CallFloatMethodA,

  4708     jni_CallDoubleMethod,

  4709     jni_CallDoubleMethodV,

  4710     jni_CallDoubleMethodA,

  4711     jni_CallVoidMethod,

  4712     jni_CallVoidMethodV,

  4713     jni_CallVoidMethodA,

  4715     jni_CallNonvirtualObjectMethod,

  4716     jni_CallNonvirtualObjectMethodV,

  4717     jni_CallNonvirtualObjectMethodA,

  4718     jni_CallNonvirtualBooleanMethod,

  4719     jni_CallNonvirtualBooleanMethodV,

  4720     jni_CallNonvirtualBooleanMethodA,

  4721     jni_CallNonvirtualByteMethod,

  4722     jni_CallNonvirtualByteMethodV,

  4723     jni_CallNonvirtualByteMethodA,

  4724     jni_CallNonvirtualCharMethod,

  4725     jni_CallNonvirtualCharMethodV,

  4726     jni_CallNonvirtualCharMethodA,

  4727     jni_CallNonvirtualShortMethod,

  4728     jni_CallNonvirtualShortMethodV,

  4729     jni_CallNonvirtualShortMethodA,

  4730     jni_CallNonvirtualIntMethod,

  4731     jni_CallNonvirtualIntMethodV,

  4732     jni_CallNonvirtualIntMethodA,

  4733     jni_CallNonvirtualLongMethod,

  4734     jni_CallNonvirtualLongMethodV,

  4735     jni_CallNonvirtualLongMethodA,

  4736     jni_CallNonvirtualFloatMethod,

  4737     jni_CallNonvirtualFloatMethodV,

  4738     jni_CallNonvirtualFloatMethodA,

  4739     jni_CallNonvirtualDoubleMethod,

  4740     jni_CallNonvirtualDoubleMethodV,

  4741     jni_CallNonvirtualDoubleMethodA,

  4742     jni_CallNonvirtualVoidMethod,

  4743     jni_CallNonvirtualVoidMethodV,

  4744     jni_CallNonvirtualVoidMethodA,

  4746     jni_GetFieldID,

  4748     jni_GetObjectField,

  4749     jni_GetBooleanField,

  4750     jni_GetByteField,

  4751     jni_GetCharField,

  4752     jni_GetShortField,

  4753     jni_GetIntField,

  4754     jni_GetLongField,

  4755     jni_GetFloatField,

  4756     jni_GetDoubleField,

  4758     jni_SetObjectField,

  4759     jni_SetBooleanField,

  4760     jni_SetByteField,

  4761     jni_SetCharField,

  4762     jni_SetShortField,

  4763     jni_SetIntField,

  4764     jni_SetLongField,

  4765     jni_SetFloatField,

  4766     jni_SetDoubleField,

  4768     jni_GetStaticMethodID,

  4770     jni_CallStaticObjectMethod,

  4771     jni_CallStaticObjectMethodV,

  4772     jni_CallStaticObjectMethodA,

  4773     jni_CallStaticBooleanMethod,

  4774     jni_CallStaticBooleanMethodV,

  4775     jni_CallStaticBooleanMethodA,

  4776     jni_CallStaticByteMethod,

  4777     jni_CallStaticByteMethodV,

  4778     jni_CallStaticByteMethodA,

  4779     jni_CallStaticCharMethod,

  4780     jni_CallStaticCharMethodV,

  4781     jni_CallStaticCharMethodA,

  4782     jni_CallStaticShortMethod,

  4783     jni_CallStaticShortMethodV,

  4784     jni_CallStaticShortMethodA,

  4785     jni_CallStaticIntMethod,

  4786     jni_CallStaticIntMethodV,

  4787     jni_CallStaticIntMethodA,

  4788     jni_CallStaticLongMethod,

  4789     jni_CallStaticLongMethodV,

  4790     jni_CallStaticLongMethodA,

  4791     jni_CallStaticFloatMethod,

  4792     jni_CallStaticFloatMethodV,

  4793     jni_CallStaticFloatMethodA,

  4794     jni_CallStaticDoubleMethod,

  4795     jni_CallStaticDoubleMethodV,

  4796     jni_CallStaticDoubleMethodA,

  4797     jni_CallStaticVoidMethod,

  4798     jni_CallStaticVoidMethodV,

  4799     jni_CallStaticVoidMethodA,

  4801     jni_GetStaticFieldID,

  4803     jni_GetStaticObjectField,

  4804     jni_GetStaticBooleanField,

  4805     jni_GetStaticByteField,

  4806     jni_GetStaticCharField,

  4807     jni_GetStaticShortField,

  4808     jni_GetStaticIntField,

  4809     jni_GetStaticLongField,

  4810     jni_GetStaticFloatField,

  4811     jni_GetStaticDoubleField,

  4813     jni_SetStaticObjectField,

  4814     jni_SetStaticBooleanField,

  4815     jni_SetStaticByteField,

  4816     jni_SetStaticCharField,

  4817     jni_SetStaticShortField,

  4818     jni_SetStaticIntField,

  4819     jni_SetStaticLongField,

  4820     jni_SetStaticFloatField,

  4821     jni_SetStaticDoubleField,

  4823     jni_NewString,

  4824     jni_GetStringLength,

  4825     jni_GetStringChars,

  4826     jni_ReleaseStringChars,

  4828     jni_NewStringUTF,

  4829     jni_GetStringUTFLength,

  4830     jni_GetStringUTFChars,

  4831     jni_ReleaseStringUTFChars,

  4833     jni_GetArrayLength,

  4835     jni_NewObjectArray,

  4836     jni_GetObjectArrayElement,

  4837     jni_SetObjectArrayElement,

  4839     jni_NewBooleanArray,

  4840     jni_NewByteArray,

  4841     jni_NewCharArray,

  4842     jni_NewShortArray,

  4843     jni_NewIntArray,

  4844     jni_NewLongArray,

  4845     jni_NewFloatArray,

  4846     jni_NewDoubleArray,

  4848     jni_GetBooleanArrayElements,

  4849     jni_GetByteArrayElements,

  4850     jni_GetCharArrayElements,

  4851     jni_GetShortArrayElements,

  4852     jni_GetIntArrayElements,

  4853     jni_GetLongArrayElements,

  4854     jni_GetFloatArrayElements,

  4855     jni_GetDoubleArrayElements,

  4857     jni_ReleaseBooleanArrayElements,

  4858     jni_ReleaseByteArrayElements,

  4859     jni_ReleaseCharArrayElements,

  4860     jni_ReleaseShortArrayElements,

  4861     jni_ReleaseIntArrayElements,

  4862     jni_ReleaseLongArrayElements,

  4863     jni_ReleaseFloatArrayElements,

  4864     jni_ReleaseDoubleArrayElements,

  4866     jni_GetBooleanArrayRegion,

  4867     jni_GetByteArrayRegion,

  4868     jni_GetCharArrayRegion,

  4869     jni_GetShortArrayRegion,

  4870     jni_GetIntArrayRegion,

  4871     jni_GetLongArrayRegion,

  4872     jni_GetFloatArrayRegion,

  4873     jni_GetDoubleArrayRegion,

  4875     jni_SetBooleanArrayRegion,

  4876     jni_SetByteArrayRegion,

  4877     jni_SetCharArrayRegion,

  4878     jni_SetShortArrayRegion,

  4879     jni_SetIntArrayRegion,

  4880     jni_SetLongArrayRegion,

  4881     jni_SetFloatArrayRegion,

  4882     jni_SetDoubleArrayRegion,

  4884     jni_RegisterNatives,

  4885     jni_UnregisterNatives,

  4887     jni_MonitorEnter,

  4888     jni_MonitorExit,

  4890     jni_GetJavaVM,

  4892     jni_GetStringRegion,

  4893     jni_GetStringUTFRegion,

  4895     jni_GetPrimitiveArrayCritical,

  4896     jni_ReleasePrimitiveArrayCritical,

  4898     jni_GetStringCritical,

  4899     jni_ReleaseStringCritical,

  4901     jni_NewWeakGlobalRef,

  4902     jni_DeleteWeakGlobalRef,

  4904     jni_ExceptionCheck,

  4906     jni_NewDirectByteBuffer,

  4907     jni_GetDirectBufferAddress,

  4908     jni_GetDirectBufferCapacity,

  4910     // New 1_6 features

  4912     jni_GetObjectRefType

  4913 };

  4916 // For jvmti use to modify jni function table.

  4917 // Java threads in native contiues to run until it is transitioned

  4918 // to VM at safepoint. Before the transition or before it is blocked

  4919 // for safepoint it may access jni function table. VM could crash if

  4920 // any java thread access the jni function table in the middle of memcpy.

  4921 // To avoid this each function pointers are copied automically.

  4922 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4923   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4924   intptr_t *a = (intptr_t *) jni_functions();

  4925   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4926   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4927     Atomic::store_ptr(*b++, a++);

  4928   }

  4929 }

  4931 void quicken_jni_functions() {

  4932   // Replace Get<Primitive>Field with fast versions

  4933   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4934       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4935 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4936       // windows x86 currently needs SEH wrapper and the gain of the fast

  4937       // versions currently isn't certain for server vm on uniprocessor.

  4938       && os::is_MP()

  4939 #endif

  4940   ) {

  4941     address func;

  4942     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4943     if (func != (address)-1) {

  4944       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4945     }

  4946     func = JNI_FastGetField::generate_fast_get_byte_field();

  4947     if (func != (address)-1) {

  4948       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4949     }

  4950     func = JNI_FastGetField::generate_fast_get_char_field();

  4951     if (func != (address)-1) {

  4952       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4953     }

  4954     func = JNI_FastGetField::generate_fast_get_short_field();

  4955     if (func != (address)-1) {

  4956       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4957     }

  4958     func = JNI_FastGetField::generate_fast_get_int_field();

  4959     if (func != (address)-1) {

  4960       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4961     }

  4962     func = JNI_FastGetField::generate_fast_get_long_field();

  4963     if (func != (address)-1) {

  4964       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4965     }

  4966     func = JNI_FastGetField::generate_fast_get_float_field();

  4967     if (func != (address)-1) {

  4968       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4969     }

  4970     func = JNI_FastGetField::generate_fast_get_double_field();

  4971     if (func != (address)-1) {

  4972       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4973     }

  4974   }

  4975 }

  4977 // Returns the function structure

  4978 struct JNINativeInterface_* jni_functions() {

  4979 #if INCLUDE_JNI_CHECK

  4980   if (CheckJNICalls) return jni_functions_check();

  4981 #endif // INCLUDE_JNI_CHECK

  4982   return &jni_NativeInterface;

  4983 }

  4985 // Returns the function structure

  4986 struct JNINativeInterface_* jni_functions_nocheck() {

  4987   return &jni_NativeInterface;

  4988 }

  4991 // Invocation API

  4994 // Forward declaration

  4995 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  4997 // Global invocation API vars

  4998 volatile jint vm_created = 0;

  4999 // Indicate whether it is safe to recreate VM

  5000 volatile jint safe_to_recreate_vm = 1;

  5001 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5004 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5005 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5007 #ifndef USDT2

  5008 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5009 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5010 #else /* USDT2 */

  5011 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5012                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5013 #endif /* USDT2 */

  5015 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5016 #ifndef USDT2

  5017   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5018 #else /* USDT2 */

  5019   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5020                                              args_);

  5021 #endif /* USDT2 */

  5022   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5023   jint ret = JNI_ERR;

  5024   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5026   if (Threads::is_supported_jni_version(args->version)) {

  5027     ret = JNI_OK;

  5028   }

  5029   // 1.1 style no longer supported in hotspot.

  5030   // According the JNI spec, we should update args->version on return.

  5031   // We also use the structure to communicate with launcher about default

  5032   // stack size.

  5033   if (args->version == JNI_VERSION_1_1) {

  5034     args->version = JNI_VERSION_1_2;

  5035     // javaStackSize is int in arguments structure

  5036     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5037     args->javaStackSize = (jint)(ThreadStackSize * K);

  5038   }

  5039   return ret;

  5040 }

  5042 #ifndef PRODUCT

  5044 #include "gc_interface/collectedHeap.hpp"

  5045 #include "utilities/quickSort.hpp"

  5047 #define run_unit_test(unit_test_function_call)              \

  5048   tty->print_cr("Running test: " #unit_test_function_call); \

  5049   unit_test_function_call

  5051 void execute_internal_vm_tests() {

  5052   if (ExecuteInternalVMTests) {

  5053     tty->print_cr("Running internal VM tests");

  5054     run_unit_test(arrayOopDesc::test_max_array_length());

  5055     run_unit_test(CollectedHeap::test_is_in());

  5056     run_unit_test(QuickSort::test_quick_sort());

  5057     run_unit_test(AltHashing::test_alt_hash());

  5058     tty->print_cr("All internal VM tests passed");

  5059   }

  5060 }

  5062 #undef run_unit_test

  5064 #endif

  5066 #ifndef USDT2

  5067 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5068 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5069 #else /* USDT2 */

  5070 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5071                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5072 #endif /* USDT2 */

  5074 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5075 #ifndef USDT2

  5076   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5077 #else /* USDT2 */

  5078   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5079                                  (void **) vm, penv, args);

  5080 #endif /* USDT2 */

  5082   jint result = JNI_ERR;

  5083   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5085   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5086   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5087   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5088   // on all architectures.  So we check it works before relying on it.

  5089 #if defined(ZERO) && defined(ASSERT)

  5090   {

  5091     jint a = 0xcafebabe;

  5092     jint b = Atomic::xchg(0xdeadbeef, &a);

  5093     void *c = &a;

  5094     void *d = Atomic::xchg_ptr(&b, &c);

  5095     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5096     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5097   }

  5098 #endif // ZERO && ASSERT

  5100   // At the moment it's only possible to have one Java VM,

  5101   // since some of the runtime state is in global variables.

  5103   // We cannot use our mutex locks here, since they only work on

  5104   // Threads. We do an atomic compare and exchange to ensure only

  5105   // one thread can call this method at a time

  5107   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5108   // the add/dec implementations are dependent on whether we are running

  5109   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5110   // function used to determine this will always return false. Atomic::xchg

  5111   // does not have this problem.

  5112   if (Atomic::xchg(1, &vm_created) == 1) {

  5113     return JNI_ERR;   // already created, or create attempt in progress

  5114   }

  5115   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5116     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5117   }

  5119   assert(vm_created == 1, "vm_created is true during the creation");

  5121   /**

  5122    * Certain errors during initialization are recoverable and do not

  5123    * prevent this method from being called again at a later time

  5124    * (perhaps with different arguments).  However, at a certain

  5125    * point during initialization if an error occurs we cannot allow

  5126    * this function to be called again (or it will crash).  In those

  5127    * situations, the 'canTryAgain' flag is set to false, which atomically

  5128    * sets safe_to_recreate_vm to 1, such that any new call to

  5129    * JNI_CreateJavaVM will immediately fail using the above logic.

  5130    */

  5131   bool can_try_again = true;

  5133   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5134   if (result == JNI_OK) {

  5135     JavaThread *thread = JavaThread::current();

  5136     /* thread is thread_in_vm here */

  5137     *vm = (JavaVM *)(&main_vm);

  5138     *(JNIEnv**)penv = thread->jni_environment();

  5140     // Tracks the time application was running before GC

  5141     RuntimeService::record_application_start();

  5143     // Notify JVMTI

  5144     if (JvmtiExport::should_post_thread_life()) {

  5145        JvmtiExport::post_thread_start(thread);

  5146     }

  5148     EVENT_BEGIN(TraceEventThreadStart, event);

  5149     EVENT_COMMIT(event,

  5150         EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5152     // Check if we should compile all classes on bootclasspath

  5153     NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();)

  5154     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5155     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5156   } else {

  5157     if (can_try_again) {

  5158       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5159       safe_to_recreate_vm = 1;

  5160     }

  5162     // Creation failed. We must reset vm_created

  5163     *vm = 0;

  5164     *(JNIEnv**)penv = 0;

  5165     // reset vm_created last to avoid race condition. Use OrderAccess to

  5166     // control both compiler and architectural-based reordering.

  5167     OrderAccess::release_store(&vm_created, 0);

  5168   }

  5170   NOT_PRODUCT(test_error_handler(ErrorHandlerTest));

  5171   NOT_PRODUCT(execute_internal_vm_tests());

  5172   return result;

  5173 }

  5175 #ifndef USDT2

  5176 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5177   JavaVM**, jsize, jsize*);

  5178 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5179 #endif /* !USDT2 */

  5181 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5182   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5183   // JNIWrapper("GetCreatedJavaVMs");

  5184 #ifndef USDT2

  5185   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5186     vm_buf, bufLen, numVMs);

  5187 #else /* USDT2 */

  5188   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5189                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5190 #endif /* USDT2 */

  5191   if (vm_created) {

  5192     if (numVMs != NULL) *numVMs = 1;

  5193     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5194   } else {

  5195     if (numVMs != NULL) *numVMs = 0;

  5196   }

  5197 #ifndef USDT2

  5198   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5199 #else /* USDT2 */

  5200   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5201                                     JNI_OK);

  5202 #endif /* USDT2 */

  5203   return JNI_OK;

  5204 }

  5206 extern "C" {

  5208 #ifndef USDT2

  5209 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5210 #else /* USDT2 */

  5211 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5212                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5213 #endif /* USDT2 */

  5215 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5216 #ifndef USDT2

  5217   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5218 #else /* USDT2 */

  5219   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5220                                   vm);

  5221 #endif /* USDT2 */

  5222   jint res = JNI_ERR;

  5223   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5225   if (!vm_created) {

  5226     res = JNI_ERR;

  5227     return res;

  5228   }

  5230   JNIWrapper("DestroyJavaVM");

  5231   JNIEnv *env;

  5232   JavaVMAttachArgs destroyargs;

  5233   destroyargs.version = CurrentVersion;

  5234   destroyargs.name = (char *)"DestroyJavaVM";

  5235   destroyargs.group = NULL;

  5236   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5237   if (res != JNI_OK) {

  5238     return res;

  5239   }

  5241   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5242   JavaThread* thread = JavaThread::current();

  5243   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5244   if (Threads::destroy_vm()) {

  5245     // Should not change thread state, VM is gone

  5246     vm_created = false;

  5247     res = JNI_OK;

  5248     return res;

  5249   } else {

  5250     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5251     res = JNI_ERR;

  5252     return res;

  5253   }

  5254 }

  5257 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5258   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5260   // Check below commented out from JDK1.2fcs as well

  5261   /*

  5262   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5263     return JNI_EVERSION;

  5264   }

  5265   */

  5267   Thread* t = ThreadLocalStorage::get_thread_slow();

  5268   if (t != NULL) {

  5269     // If the thread has been attached this operation is a no-op

  5270     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5271     return JNI_OK;

  5272   }

  5274   // Create a thread and mark it as attaching so it will be skipped by the

  5275   // ThreadsListEnumerator - see CR 6404306

  5276   JavaThread* thread = new JavaThread(true);

  5278   // Set correct safepoint info. The thread is going to call into Java when

  5279   // initializing the Java level thread object. Hence, the correct state must

  5280   // be set in order for the Safepoint code to deal with it correctly.

  5281   thread->set_thread_state(_thread_in_vm);

  5282   // Must do this before initialize_thread_local_storage

  5283   thread->record_stack_base_and_size();

  5285   thread->initialize_thread_local_storage();

  5287   if (!os::create_attached_thread(thread)) {

  5288     delete thread;

  5289     return JNI_ERR;

  5290   }

  5291   // Enable stack overflow checks

  5292   thread->create_stack_guard_pages();

  5294   thread->initialize_tlab();

  5296   thread->cache_global_variables();

  5298   // Crucial that we do not have a safepoint check for this thread, since it has

  5299   // not been added to the Thread list yet.

  5300   { Threads_lock->lock_without_safepoint_check();

  5301     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5302     // avoid this thread trying to do a GC before it is added to the thread-list

  5303     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5304     Threads::add(thread, daemon);

  5305     Threads_lock->unlock();

  5306   }

  5307   // Create thread group and name info from attach arguments

  5308   oop group = NULL;

  5309   char* thread_name = NULL;

  5310   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5311     group = JNIHandles::resolve(args->group);

  5312     thread_name = args->name; // may be NULL

  5313   }

  5314   if (group == NULL) group = Universe::main_thread_group();

  5316   // Create Java level thread object and attach it to this thread

  5317   bool attach_failed = false;

  5318   {

  5319     EXCEPTION_MARK;

  5320     HandleMark hm(THREAD);

  5321     Handle thread_group(THREAD, group);

  5322     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5323     if (HAS_PENDING_EXCEPTION) {

  5324       CLEAR_PENDING_EXCEPTION;

  5325       // cleanup outside the handle mark.

  5326       attach_failed = true;

  5327     }

  5328   }

  5330   if (attach_failed) {

  5331     // Added missing cleanup

  5332     thread->cleanup_failed_attach_current_thread();

  5333     return JNI_ERR;

  5334   }

  5336   // mark the thread as no longer attaching

  5337   // this uses a fence to push the change through so we don't have

  5338   // to regrab the threads_lock

  5339   thread->set_done_attaching_via_jni();

  5341   // Set java thread status.

  5342   java_lang_Thread::set_thread_status(thread->threadObj(),

  5343               java_lang_Thread::RUNNABLE);

  5345   // Notify the debugger

  5346   if (JvmtiExport::should_post_thread_life()) {

  5347     JvmtiExport::post_thread_start(thread);

  5348   }

  5350   EVENT_BEGIN(TraceEventThreadStart, event);

  5351   EVENT_COMMIT(event,

  5352       EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5354   *(JNIEnv**)penv = thread->jni_environment();

  5356   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5357   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5358   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5359   // needed.

  5361   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5363   // Perform any platform dependent FPU setup

  5364   os::setup_fpu();

  5366   return JNI_OK;

  5367 }

  5370 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5371 #ifndef USDT2

  5372   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5373 #else /* USDT2 */

  5374   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5375                                         vm, penv, _args);

  5376 #endif /* USDT2 */

  5377   if (!vm_created) {

  5378 #ifndef USDT2

  5379     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5380 #else /* USDT2 */

  5381   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5382                                          (uint32_t) JNI_ERR);

  5383 #endif /* USDT2 */

  5384     return JNI_ERR;

  5385   }

  5387   JNIWrapper("AttachCurrentThread");

  5388   jint ret = attach_current_thread(vm, penv, _args, false);

  5389 #ifndef USDT2

  5390   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5391 #else /* USDT2 */

  5392   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5393                                          ret);

  5394 #endif /* USDT2 */

  5395   return ret;

  5396 }

  5399 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5400 #ifndef USDT2

  5401   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5402 #else /* USDT2 */

  5403   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5404                                         vm);

  5405 #endif /* USDT2 */

  5406   VM_Exit::block_if_vm_exited();

  5408   JNIWrapper("DetachCurrentThread");

  5410   // If the thread has been deattacted the operations is a no-op

  5411   if (ThreadLocalStorage::thread() == NULL) {

  5412 #ifndef USDT2

  5413     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5414 #else /* USDT2 */

  5415   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5416                                          JNI_OK);

  5417 #endif /* USDT2 */

  5418     return JNI_OK;

  5419   }

  5421   JavaThread* thread = JavaThread::current();

  5422   if (thread->has_last_Java_frame()) {

  5423 #ifndef USDT2

  5424     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5425 #else /* USDT2 */

  5426   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5427                                          (uint32_t) JNI_ERR);

  5428 #endif /* USDT2 */

  5429     // Can't detach a thread that's running java, that can't work.

  5430     return JNI_ERR;

  5431   }

  5433   // Safepoint support. Have to do call-back to safepoint code, if in the

  5434   // middel of a safepoint operation

  5435   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5437   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5438   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5439   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5440   // of the guards is visible in jni_AttachCurrentThread above,

  5441   // the removal of the guards is buried below in JavaThread::exit()

  5442   // here. The abstraction should be more symmetrically either exposed

  5443   // or hidden (e.g. it could probably be hidden in the same

  5444   // (platform-dependent) methods where we do alternate stack

  5445   // maintenance work?)

  5446   thread->exit(false, JavaThread::jni_detach);

  5447   delete thread;

  5449 #ifndef USDT2

  5450   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5451 #else /* USDT2 */

  5452   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5453                                          JNI_OK);

  5454 #endif /* USDT2 */

  5455   return JNI_OK;

  5456 }

  5458 #ifndef USDT2

  5459 DT_RETURN_MARK_DECL(GetEnv, jint);

  5460 #else /* USDT2 */

  5461 DT_RETURN_MARK_DECL(GetEnv, jint

  5462                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5463 #endif /* USDT2 */

  5465 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5466 #ifndef USDT2

  5467   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5468 #else /* USDT2 */

  5469   HOTSPOT_JNI_GETENV_ENTRY(

  5470                            vm, penv, version);

  5471 #endif /* USDT2 */

  5472   jint ret = JNI_ERR;

  5473   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5475   if (!vm_created) {

  5476     *penv = NULL;

  5477     ret = JNI_EDETACHED;

  5478     return ret;

  5479   }

  5481   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5482     return ret;

  5483   }

  5485 #ifndef JVMPI_VERSION_1

  5486 // need these in order to be polite about older agents

  5487 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5488 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5489 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5490 #endif // !JVMPI_VERSION_1

  5492   Thread* thread = ThreadLocalStorage::thread();

  5493   if (thread != NULL && thread->is_Java_thread()) {

  5494     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5495       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5496       ret = JNI_OK;

  5497       return ret;

  5499     } else if (version == JVMPI_VERSION_1 ||

  5500                version == JVMPI_VERSION_1_1 ||

  5501                version == JVMPI_VERSION_1_2) {

  5502       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5503       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5504       ret = JNI_EVERSION;

  5505       return ret;

  5506     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5507       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5508       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5509       ret = JNI_EVERSION;

  5510       return ret;

  5511     } else {

  5512       *penv = NULL;

  5513       ret = JNI_EVERSION;

  5514       return ret;

  5515     }

  5516   } else {

  5517     *penv = NULL;

  5518     ret = JNI_EDETACHED;

  5519     return ret;

  5520   }

  5521 }

  5524 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5525 #ifndef USDT2

  5526   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5527 #else /* USDT2 */

  5528   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5529                                                 vm, penv, _args);

  5530 #endif /* USDT2 */

  5531   if (!vm_created) {

  5532 #ifndef USDT2

  5533     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5534 #else /* USDT2 */

  5535   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5536                                                  (uint32_t) JNI_ERR);

  5537 #endif /* USDT2 */

  5538     return JNI_ERR;

  5539   }

  5541   JNIWrapper("AttachCurrentThreadAsDaemon");

  5542   jint ret = attach_current_thread(vm, penv, _args, true);

  5543 #ifndef USDT2

  5544   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5545 #else /* USDT2 */

  5546   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5547                                                  ret);

  5548 #endif /* USDT2 */

  5549   return ret;

  5550 }

  5553 } // End extern "C"

  5555 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5556     NULL,

  5557     NULL,

  5558     NULL,

  5560     jni_DestroyJavaVM,

  5561     jni_AttachCurrentThread,

  5562     jni_DetachCurrentThread,

  5563     jni_GetEnv,

  5564     jni_AttachCurrentThreadAsDaemon

  5565 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@9855b7e559ae

src/share/vm/prims/jni.cpp