jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@f3108e56b502

8196882: VS2017 Hotspot Defined vsnprintf Function Causes C2084 Already Defined Compilation Error
Summary: Add os::vsnprintf and os::snprintf.
Reviewed-by: kbarrett, lfoltan, stuefe, mlarsson

     1 /*

     2  * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.

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

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

     5  *

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

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

     8  * published by the Free Software Foundation.

     9  *

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

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

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

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

    14  * accompanied this code).

    15  *

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

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

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

    19  *

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

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

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "ci/ciReplay.hpp"

    28 #include "classfile/altHashing.hpp"

    29 #include "classfile/classLoader.hpp"

    30 #include "classfile/javaClasses.hpp"

    31 #include "classfile/symbolTable.hpp"

    32 #include "classfile/systemDictionary.hpp"

    33 #include "classfile/vmSymbols.hpp"

    34 #include "interpreter/linkResolver.hpp"

    35 #include "utilities/macros.hpp"

    36 #include "utilities/ostream.hpp"

    37 #if INCLUDE_ALL_GCS

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

    39 #endif // INCLUDE_ALL_GCS

    40 #include "memory/allocation.hpp"

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

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

    43 #include "memory/oopFactory.hpp"

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

    45 #include "oops/instanceKlass.hpp"

    46 #include "oops/instanceOop.hpp"

    47 #include "oops/markOop.hpp"

    48 #include "oops/method.hpp"

    49 #include "oops/objArrayKlass.hpp"

    50 #include "oops/objArrayOop.hpp"

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

    52 #include "oops/symbol.hpp"

    53 #include "oops/typeArrayKlass.hpp"

    54 #include "oops/typeArrayOop.hpp"

    55 #include "prims/jni.h"

    56 #include "prims/jniCheck.hpp"

    57 #include "prims/jniExport.hpp"

    58 #include "prims/jniFastGetField.hpp"

    59 #include "prims/jvm.h"

    60 #include "prims/jvm_misc.hpp"

    61 #include "prims/jvmtiExport.hpp"

    62 #include "prims/jvmtiThreadState.hpp"

    63 #include "runtime/compilationPolicy.hpp"

    64 #include "runtime/fieldDescriptor.hpp"

    65 #include "runtime/fprofiler.hpp"

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

    67 #include "runtime/interfaceSupport.hpp"

    68 #include "runtime/java.hpp"

    69 #include "runtime/javaCalls.hpp"

    70 #include "runtime/jfieldIDWorkaround.hpp"

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

    72 #include "runtime/reflection.hpp"

    73 #include "runtime/sharedRuntime.hpp"

    74 #include "runtime/signature.hpp"

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

    76 #include "runtime/vm_operations.hpp"

    77 #include "services/memTracker.hpp"

    78 #include "services/runtimeService.hpp"

    79 #include "trace/tracing.hpp"

    80 #include "utilities/defaultStream.hpp"

    81 #include "utilities/dtrace.hpp"

    82 #include "utilities/events.hpp"

    83 #include "utilities/histogram.hpp"

    84 #ifdef TARGET_OS_FAMILY_linux

    85 # include "os_linux.inline.hpp"

    86 #endif

    87 #ifdef TARGET_OS_FAMILY_solaris

    88 # include "os_solaris.inline.hpp"

    89 #endif

    90 #ifdef TARGET_OS_FAMILY_windows

    91 # include "os_windows.inline.hpp"

    92 #endif

    93 #ifdef TARGET_OS_FAMILY_bsd

    94 # include "os_bsd.inline.hpp"

    95 #endif

    97 static jint CurrentVersion = JNI_VERSION_1_8;

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

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

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

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

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

   105 //

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

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

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

   109 // a reference to it).

   110 //

   111 // Example:

   112 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   114 //   int return_value = 0;

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

   116 //   foo(CHECK_0)

   117 //   return_value = 5;

   118 //   return return_value;

   119 // JNI_END

   120 #ifndef USDT2

   121 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   123   DTRACE_ONLY(                                                             \

   124     class DTraceReturnProbeMark_##name {                                   \

   125      public:                                                               \

   126       const type& _ret_ref;                                                \

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

   128       ~DTraceReturnProbeMark_##name() {                                    \

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

   130       }                                                                    \

   131     }                                                                      \

   132   )

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

   134 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   136   DTRACE_ONLY(                                                             \

   137     class DTraceReturnProbeMark_##name {                                   \

   138      public:                                                               \

   139       ~DTraceReturnProbeMark_##name() {                                    \

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

   141       }                                                                    \

   142     }                                                                      \

   143   )

   145 #else /* USDT2 */

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

   148   DTRACE_ONLY(                                                             \

   149     class DTraceReturnProbeMark_##name {                                   \

   150      public:                                                               \

   151       const type& _ret_ref;                                                \

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

   153       ~DTraceReturnProbeMark_##name() {                                    \

   154         probe;                                                             \

   155       }                                                                    \

   156     }                                                                      \

   157   )

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

   159 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   160   DTRACE_ONLY(                                                             \

   161     class DTraceReturnProbeMark_##name {                                   \

   162      public:                                                               \

   163       ~DTraceReturnProbeMark_##name() {                                    \

   164         probe;                                                             \

   165       }                                                                    \

   166     }                                                                      \

   167   )

   168 #endif /* USDT2 */

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

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

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

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

   174 #define DT_VOID_RETURN_MARK(name) \

   175   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   180 // different behavior for Float/Double

   181 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   182 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   183 #define FP_SELECT_Char(intcode, fpcode)    intcode

   184 #define FP_SELECT_Short(intcode, fpcode)   intcode

   185 #define FP_SELECT_Object(intcode, fpcode)  intcode

   186 #define FP_SELECT_Int(intcode, fpcode)     intcode

   187 #define FP_SELECT_Long(intcode, fpcode)    intcode

   188 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   189 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   191   FP_SELECT_##TypeName(intcode, fpcode)

   193 #define COMMA ,

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

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

   197 #ifndef USDT2

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

   199   FP_SELECT(TypeName, \

   200     DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )

   201 #else /* USDT2 */

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

   203   FP_SELECT(TypeName, \

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

   205 #endif /* USDT2 */

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

   207   FP_SELECT(TypeName, \

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

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

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

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

   215     uintptr_t as_uint = (uintptr_t) id;

   216     intptr_t offset = raw_instance_offset(id);

   217     if (is_checked_jfieldID(id)) {

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

   219         return false;

   220       }

   221     }

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

   223   } else {

   224     JNIid* result = (JNIid*) id;

   225 #ifdef ASSERT

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

   227 #else

   228     return result != NULL;

   229 #endif

   230   }

   231 }

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

   235   if (offset <= small_offset_mask) {

   236     Klass* field_klass = k;

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

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

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

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

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

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

   243       super_klass = field_klass->super();

   244     }

   245     debug_only(No_Safepoint_Verifier nosafepoint;)

   246     uintptr_t klass_hash = field_klass->identity_hash();

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

   248   } else {

   249 #if 0

   250     #ifndef PRODUCT

   251     {

   252       ResourceMark rm;

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

   254     }

   255     #endif

   256 #endif

   257     return 0;

   258   }

   259 }

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

   262   uintptr_t as_uint = (uintptr_t) id;

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

   264   do {

   265     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   268       return true;

   269     k = k->super();

   270   } while (k != NULL);

   271   return false;

   272 }

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

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

   276   uintptr_t as_uint = (uintptr_t) id;

   277   intptr_t offset = raw_instance_offset(id);

   278   if (VerifyJNIFields) {

   279     if (is_checked_jfieldID(id)) {

   280       guarantee(klass_hash_ok(k, id),

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

   282     } else {

   283 #if 0

   284       #ifndef PRODUCT

   285       if (Verbose) {

   286   ResourceMark rm;

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

   288       }

   289       #endif

   290 #endif

   291     }

   292   }

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

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

   295 }

   297 // Wrapper to trace JNI functions

   299 #ifdef ASSERT

   300   Histogram* JNIHistogram;

   301   static volatile jint JNIHistogram_lock = 0;

   303   class JNITraceWrapper : public StackObj {

   304    public:

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

   306       if (TraceJNICalls) {

   307         va_list ap;

   308         va_start(ap, format);

   309         tty->print("JNI ");

   310         tty->vprint_cr(format, ap);

   311         va_end(ap);

   312       }

   313     }

   314   };

   316   class JNIHistogramElement : public HistogramElement {

   317     public:

   318      JNIHistogramElement(const char* name);

   319   };

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

   322     _name = elementName;

   323     uintx count = 0;

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

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

   327         count +=1;

   328         if ( (WarnOnStalledSpinLock > 0)

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

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

   331         }

   332       }

   333      }

   336     if(JNIHistogram == NULL)

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

   339     JNIHistogram->add_element(this);

   340     Atomic::dec(&JNIHistogram_lock);

   341   }

   343   #define JNICountWrapper(arg)                                     \

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

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

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

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

   348 #else

   349   #define JNIWrapper(arg)

   350 #endif

   353 // Implementation of JNI entries

   355 #ifndef USDT2

   356 DT_RETURN_MARK_DECL(DefineClass, jclass);

   357 #else /* USDT2 */

   358 DT_RETURN_MARK_DECL(DefineClass, jclass

   359                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   360 #endif /* USDT2 */

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

   363                                   const jbyte *buf, jsize bufLen))

   364   JNIWrapper("DefineClass");

   366 #ifndef USDT2

   367   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   369 #else /* USDT2 */

   370   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   372 #endif /* USDT2 */

   373   jclass cls = NULL;

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

   376   TempNewSymbol class_name = NULL;

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

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

   379   if (name != NULL) {

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

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

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

   383       // into the constant pool.

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

   385     }

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

   387   }

   388   ResourceMark rm(THREAD);

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

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

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

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

   394     // If not, increment the corresponding counter

   395     if (ObjectSynchronizer::

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

   397         ObjectSynchronizer::owner_self) {

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

   399     }

   400   }

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

   402                                                      Handle(), &st, true,

   403                                                      CHECK_NULL);

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

   406     trace_class_resolution(k);

   407   }

   409   cls = (jclass)JNIHandles::make_local(

   410     env, k->java_mirror());

   411   return cls;

   412 JNI_END

   416 static bool first_time_FindClass = true;

   418 #ifndef USDT2

   419 DT_RETURN_MARK_DECL(FindClass, jclass);

   420 #else /* USDT2 */

   421 DT_RETURN_MARK_DECL(FindClass, jclass

   422                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   423 #endif /* USDT2 */

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

   426   JNIWrapper("FindClass");

   427 #ifndef USDT2

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

   429 #else /* USDT2 */

   430   HOTSPOT_JNI_FINDCLASS_ENTRY(

   431                               env, (char *)name);

   432 #endif /* USDT2 */

   434   jclass result = NULL;

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

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

   438   bool first_time = first_time_FindClass;

   439   first_time_FindClass = false;

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

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

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

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

   445   }

   447   //%note jni_3

   448   Handle loader;

   449   Handle protection_domain;

   450   // Find calling class

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

   452   if (k.not_null()) {

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

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

   455     // in the correct class context.

   456     if (loader.is_null() &&

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

   458       JavaValue result(T_OBJECT);

   459       JavaCalls::call_static(&result, k,

   460                                       vmSymbols::getFromClass_name(),

   461                                       vmSymbols::void_class_signature(),

   462                                       thread);

   463       if (HAS_PENDING_EXCEPTION) {

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

   465         CLEAR_PENDING_EXCEPTION;

   466         THROW_HANDLE_0(ex);

   467       }

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

   469       loader = Handle(THREAD,

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

   471       protection_domain = Handle(THREAD,

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

   473     }

   474   } else {

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

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

   477   }

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

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

   481                                         protection_domain, true, thread);

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

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

   485   }

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

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

   489   // Controlled by flag DelayCompilationDuringStartup.

   490   if (first_time && !CompileTheWorld)

   491     CompilationPolicy::completed_vm_startup();

   493   return result;

   494 JNI_END

   496 #ifndef USDT2

   497 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   498 #else /* USDT2 */

   499 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   500                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   501 #endif /* USDT2 */

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

   504   JNIWrapper("FromReflectedMethod");

   505 #ifndef USDT2

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

   507 #else /* USDT2 */

   508   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   509                                         env, method);

   510 #endif /* USDT2 */

   511   jmethodID ret = NULL;

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

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

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

   516   oop mirror     = NULL;

   517   int slot       = 0;

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

   520     mirror = java_lang_reflect_Constructor::clazz(reflected);

   521     slot   = java_lang_reflect_Constructor::slot(reflected);

   522   } else {

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

   524     mirror = java_lang_reflect_Method::clazz(reflected);

   525     slot   = java_lang_reflect_Method::slot(reflected);

   526   }

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

   529   KlassHandle k1(THREAD, k);

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

   531   k1()->initialize(CHECK_NULL);

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

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

   534   return ret;

   535 JNI_END

   537 #ifndef USDT2

   538 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   539 #else /* USDT2 */

   540 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   541                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   542 #endif /* USDT2 */

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

   545   JNIWrapper("FromReflectedField");

   546 #ifndef USDT2

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

   548 #else /* USDT2 */

   549   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   550                                        env, field);

   551 #endif /* USDT2 */

   552   jfieldID ret = NULL;

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

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

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

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

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

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

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

   562   KlassHandle k1(THREAD, k);

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

   564   k1()->initialize(CHECK_NULL);

   566   // First check if this is a static field

   567   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   571     debug_only(id->set_is_static_field_id();)

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

   573     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   574     return ret;

   575   }

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

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

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

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

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

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

   583   return ret;

   584 JNI_END

   586 #ifndef USDT2

   587 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   588 #else /* USDT2 */

   589 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   590                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   591 #endif /* USDT2 */

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

   594   JNIWrapper("ToReflectedMethod");

   595 #ifndef USDT2

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

   597 #else /* USDT2 */

   598   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   600 #endif /* USDT2 */

   601   jobject ret = NULL;

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

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

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

   606   oop reflection_method;

   607   if (m->is_initializer()) {

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

   609   } else {

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

   611   }

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

   613   return ret;

   614 JNI_END

   616 #ifndef USDT2

   617 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   618 #else /* USDT2 */

   619 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   620                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   621 #endif /* USDT2 */

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

   624   JNIWrapper("GetSuperclass");

   625 #ifndef USDT2

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

   627 #else /* USDT2 */

   628   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   629                                   env, sub);

   630 #endif /* USDT2 */

   631   jclass obj = NULL;

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

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

   635   // primitive classes return NULL

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

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

   639   // arrays return Object

   640   // interfaces return NULL

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

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

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

   645   // return mirror for superclass

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

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

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

   649                                  ? SystemDictionary::Object_klass()

   650                                  : k->super() ) );

   651   assert(super == super2,

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

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

   654   return obj;

   655 JNI_END

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

   658   JNIWrapper("IsSubclassOf");

   659 #ifndef USDT2

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

   661 #else /* USDT2 */

   662   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   663                                      env, sub, super);

   664 #endif /* USDT2 */

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

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

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

   668       java_lang_Class::is_primitive(super_mirror)) {

   669     jboolean ret = (sub_mirror == super_mirror);

   670 #ifndef USDT2

   671     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   672 #else /* USDT2 */

   673     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   674                                         ret);

   675 #endif /* USDT2 */

   676     return ret;

   677   }

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

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

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

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

   682                    JNI_TRUE : JNI_FALSE;

   683 #ifndef USDT2

   684   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   685 #else /* USDT2 */

   686   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   687                                       ret);

   688 #endif /* USDT2 */

   689   return ret;

   690 JNI_END

   692 #ifndef USDT2

   693 DT_RETURN_MARK_DECL(Throw, jint);

   694 #else /* USDT2 */

   695 DT_RETURN_MARK_DECL(Throw, jint

   696                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   697 #endif /* USDT2 */

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

   700   JNIWrapper("Throw");

   701 #ifndef USDT2

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

   703 #else /* USDT2 */

   704   HOTSPOT_JNI_THROW_ENTRY(

   705  env, obj);

   706 #endif /* USDT2 */

   707   jint ret = JNI_OK;

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

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

   711   ShouldNotReachHere();

   712 JNI_END

   714 #ifndef USDT2

   715 DT_RETURN_MARK_DECL(ThrowNew, jint);

   716 #else /* USDT2 */

   717 DT_RETURN_MARK_DECL(ThrowNew, jint

   718                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   719 #endif /* USDT2 */

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

   722   JNIWrapper("ThrowNew");

   723 #ifndef USDT2

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

   725 #else /* USDT2 */

   726   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   728 #endif /* USDT2 */

   729   jint ret = JNI_OK;

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

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

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

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

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

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

   737   ShouldNotReachHere();

   738 JNI_END

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

   742 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   748 // state transition.

   750 static void jni_check_async_exceptions(JavaThread *thread) {

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

   752   thread->check_and_handle_async_exceptions();

   753 }

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

   756   JNIWrapper("ExceptionOccurred");

   757 #ifndef USDT2

   758   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   759 #else /* USDT2 */

   760   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   761                                       env);

   762 #endif /* USDT2 */

   763   jni_check_async_exceptions(thread);

   764   oop exception = thread->pending_exception();

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

   766 #ifndef USDT2

   767   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   768 #else /* USDT2 */

   769   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   770                                        ret);

   771 #endif /* USDT2 */

   772   return ret;

   773 JNI_END

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

   777   JNIWrapper("ExceptionDescribe");

   778 #ifndef USDT2

   779   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   780 #else /* USDT2 */

   781   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   782                                       env);

   783 #endif /* USDT2 */

   784   if (thread->has_pending_exception()) {

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

   786     thread->clear_pending_exception();

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

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

   789     } else {

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

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

   792         ResourceMark rm(THREAD);

   793         jio_fprintf(defaultStream::error_stream(),

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

   795       }

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

   797         JavaValue result(T_VOID);

   798         JavaCalls::call_virtual(&result,

   799                                 ex,

   800                                 KlassHandle(THREAD,

   801                                   SystemDictionary::Throwable_klass()),

   802                                 vmSymbols::printStackTrace_name(),

   803                                 vmSymbols::void_method_signature(),

   804                                 THREAD);

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

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

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

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

   809         // is expected.

   810         CLEAR_PENDING_EXCEPTION;

   811       } else {

   812         ResourceMark rm(THREAD);

   813         jio_fprintf(defaultStream::error_stream(),

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

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

   816       }

   817     }

   818   }

   819 #ifndef USDT2

   820   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   821 #else /* USDT2 */

   822   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   823                                        );

   824 #endif /* USDT2 */

   825 JNI_END

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

   829   JNIWrapper("ExceptionClear");

   830 #ifndef USDT2

   831   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   832 #else /* USDT2 */

   833   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   834                                    env);

   835 #endif /* USDT2 */

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

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

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

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

   841     state->set_exception_caught();

   842   }

   843   thread->clear_pending_exception();

   844 #ifndef USDT2

   845   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   846 #else /* USDT2 */

   847   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   848                                     );

   849 #endif /* USDT2 */

   850 JNI_END

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

   854   JNIWrapper("FatalError");

   855 #ifndef USDT2

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

   857 #else /* USDT2 */

   858   HOTSPOT_JNI_FATALERROR_ENTRY(

   859                                env, (char *) msg);

   860 #endif /* USDT2 */

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

   862   thread->print_stack();

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

   864 JNI_END

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

   868   JNIWrapper("PushLocalFrame");

   869 #ifndef USDT2

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

   871 #else /* USDT2 */

   872   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   873                                    env, capacity);

   874 #endif /* USDT2 */

   875   //%note jni_11

   876   if (capacity < 0 ||

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

   878 #ifndef USDT2

   879     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   880 #else /* USDT2 */

   881     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   882                                       (uint32_t)JNI_ERR);

   883 #endif /* USDT2 */

   884     return JNI_ERR;

   885   }

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

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

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

   889   new_handles->set_pop_frame_link(old_handles);

   890   thread->set_active_handles(new_handles);

   891   jint ret = JNI_OK;

   892 #ifndef USDT2

   893   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   894 #else /* USDT2 */

   895   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   896                                     ret);

   897 #endif /* USDT2 */

   898   return ret;

   899 JNI_END

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

   903   JNIWrapper("PopLocalFrame");

   904 #ifndef USDT2

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

   906 #else /* USDT2 */

   907   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   908                                   env, result);

   909 #endif /* USDT2 */

   910   //%note jni_11

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

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

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

   914   if (new_handles != NULL) {

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

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

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

   918     // the release_block call will release the blocks.

   919     thread->set_active_handles(new_handles);

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

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

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

   923   }

   924 #ifndef USDT2

   925   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   926 #else /* USDT2 */

   927   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   928                                    result);

   929 #endif /* USDT2 */

   930   return result;

   931 JNI_END

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

   935   JNIWrapper("NewGlobalRef");

   936 #ifndef USDT2

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

   938 #else /* USDT2 */

   939   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   940                                  env, ref);

   941 #endif /* USDT2 */

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

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

   944 #ifndef USDT2

   945   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   946 #else /* USDT2 */

   947   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   948                                   ret);

   949 #endif /* USDT2 */

   950   return ret;

   951 JNI_END

   953 // Must be JNI_ENTRY (with HandleMark)

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

   955   JNIWrapper("DeleteGlobalRef");

   956 #ifndef USDT2

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

   958 #else /* USDT2 */

   959   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   960                                     env, ref);

   961 #endif /* USDT2 */

   962   JNIHandles::destroy_global(ref);

   963 #ifndef USDT2

   964   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   965 #else /* USDT2 */

   966   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   967                                      );

   968 #endif /* USDT2 */

   969 JNI_END

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

   972   JNIWrapper("DeleteLocalRef");

   973 #ifndef USDT2

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

   975 #else /* USDT2 */

   976   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   977                                    env, obj);

   978 #endif /* USDT2 */

   979   JNIHandles::destroy_local(obj);

   980 #ifndef USDT2

   981   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   982 #else /* USDT2 */

   983   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   984                                     );

   985 #endif /* USDT2 */

   986 JNI_END

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

   989   JNIWrapper("IsSameObject");

   990 #ifndef USDT2

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

   992 #else /* USDT2 */

   993   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

   994                                  env, r1, r2);

   995 #endif /* USDT2 */

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

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

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

   999 #ifndef USDT2

  1000   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1001 #else /* USDT2 */

  1002   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1003                                   ret);

  1004 #endif /* USDT2 */

  1005   return ret;

  1006 JNI_END

  1009 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))

  1010   JNIWrapper("NewLocalRef");

  1011 #ifndef USDT2

  1012   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);

  1013 #else /* USDT2 */

  1014   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1015                                 env, ref);

  1016 #endif /* USDT2 */

  1017   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));

  1018 #ifndef USDT2

  1019   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1020 #else /* USDT2 */

  1021   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1022                                  ret);

  1023 #endif /* USDT2 */

  1024   return ret;

  1025 JNI_END

  1027 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))

  1028   JNIWrapper("EnsureLocalCapacity");

  1029 #ifndef USDT2

  1030   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);

  1031 #else /* USDT2 */

  1032   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1033                                         env, capacity);

  1034 #endif /* USDT2 */

  1035   jint ret;

  1036   if (capacity >= 0 &&

  1037       ((MaxJNILocalCapacity <= 0) || (capacity <= MaxJNILocalCapacity))) {

  1038     ret = JNI_OK;

  1039   } else {

  1040     ret = JNI_ERR;

  1041   }

  1042 #ifndef USDT2

  1043   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1044 #else /* USDT2 */

  1045   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1046                                          ret);

  1047 #endif /* USDT2 */

  1048   return ret;

  1049 JNI_END

  1051 // Return the Handle Type

  1052 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))

  1053   JNIWrapper("GetObjectRefType");

  1054 #ifndef USDT2

  1055   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);

  1056 #else /* USDT2 */

  1057   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1058                                      env, obj);

  1059 #endif /* USDT2 */

  1060   jobjectRefType ret;

  1061   if (JNIHandles::is_local_handle(thread, obj) ||

  1062       JNIHandles::is_frame_handle(thread, obj))

  1063     ret = JNILocalRefType;

  1064   else if (JNIHandles::is_global_handle(obj))

  1065     ret = JNIGlobalRefType;

  1066   else if (JNIHandles::is_weak_global_handle(obj))

  1067     ret = JNIWeakGlobalRefType;

  1068   else

  1069     ret = JNIInvalidRefType;

  1070 #ifndef USDT2

  1071   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1072 #else /* USDT2 */

  1073   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1074                                       (void *) ret);

  1075 #endif /* USDT2 */

  1076   return ret;

  1077 JNI_END

  1080 class JNI_ArgumentPusher : public SignatureIterator {

  1081  protected:

  1082   JavaCallArguments*  _arguments;

  1084   virtual void get_bool   () = 0;

  1085   virtual void get_char   () = 0;

  1086   virtual void get_short  () = 0;

  1087   virtual void get_byte   () = 0;

  1088   virtual void get_int    () = 0;

  1089   virtual void get_long   () = 0;

  1090   virtual void get_float  () = 0;

  1091   virtual void get_double () = 0;

  1092   virtual void get_object () = 0;

  1094   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {

  1095     this->_return_type = T_ILLEGAL;

  1096     _arguments = NULL;

  1097   }

  1099  public:

  1100   virtual void iterate( uint64_t fingerprint ) = 0;

  1102   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }

  1104   inline void do_bool()                     { if (!is_return_type()) get_bool();   }

  1105   inline void do_char()                     { if (!is_return_type()) get_char();   }

  1106   inline void do_short()                    { if (!is_return_type()) get_short();  }

  1107   inline void do_byte()                     { if (!is_return_type()) get_byte();   }

  1108   inline void do_int()                      { if (!is_return_type()) get_int();    }

  1109   inline void do_long()                     { if (!is_return_type()) get_long();   }

  1110   inline void do_float()                    { if (!is_return_type()) get_float();  }

  1111   inline void do_double()                   { if (!is_return_type()) get_double(); }

  1112   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }

  1113   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array

  1114   inline void do_void()                     { }

  1116   JavaCallArguments* arguments()     { return _arguments; }

  1117   void push_receiver(Handle h)       { _arguments->push_oop(h); }

  1118 };

  1121 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1122  protected:

  1123   va_list _ap;

  1125   inline void get_bool()   {

  1126     // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and

  1127     // 0 to JNI_FALSE.  Boolean return values from native are normalized the same in

  1128     // TemplateInterpreterGenerator::generate_result_handler_for and

  1129     // SharedRuntime::generate_native_wrapper.

  1130     jboolean b = va_arg(_ap, jint);

  1131     _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));

  1132   }

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

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

  1135   inline void get_byte()   { _arguments->push_int(va_arg(_ap, jint)); } // byte is coerced to int when using va_arg

  1136   inline void get_int()    { _arguments->push_int(va_arg(_ap, jint)); }

  1138   // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests

  1140   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }

  1141   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg

  1142   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }

  1143   inline void get_object() { jobject l = va_arg(_ap, jobject);

  1144                              _arguments->push_oop(Handle((oop *)l, false)); }

  1146   inline void set_ap(va_list rap) {

  1147 #ifdef va_copy

  1148     va_copy(_ap, rap);

  1149 #elif defined (__va_copy)

  1150     __va_copy(_ap, rap);

  1151 #else

  1152     _ap = rap;

  1153 #endif

  1154   }

  1156  public:

  1157   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1158        : JNI_ArgumentPusher(signature) {

  1159     set_ap(rap);

  1160   }

  1161   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

  1162       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1163     set_ap(rap);

  1164   }

  1166   // Optimized path if we have the bitvector form of signature

  1167   void iterate( uint64_t fingerprint ) {

  1168     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments

  1169     else {

  1170       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1171                                   result_feature_mask);

  1173       assert(fingerprint, "Fingerprint should not be 0");

  1174       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1175       while ( 1 ) {

  1176         switch ( fingerprint & parameter_feature_mask ) {

  1177           case bool_parm:

  1178             get_bool();

  1179             break;

  1180           case char_parm:

  1181             get_char();

  1182             break;

  1183           case short_parm:

  1184             get_short();

  1185             break;

  1186           case byte_parm:

  1187             get_byte();

  1188             break;

  1189           case int_parm:

  1190             get_int();

  1191             break;

  1192           case obj_parm:

  1193             get_object();

  1194             break;

  1195           case long_parm:

  1196             get_long();

  1197             break;

  1198           case float_parm:

  1199             get_float();

  1200             break;

  1201           case double_parm:

  1202             get_double();

  1203             break;

  1204           case done_parm:

  1205             return;

  1206             break;

  1207           default:

  1208             ShouldNotReachHere();

  1209             break;

  1210         }

  1211         fingerprint >>= parameter_feature_size;

  1212       }

  1213     }

  1214   }

  1215 };

  1218 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1219  protected:

  1220   const jvalue *_ap;

  1222   inline void get_bool()   {

  1223     // Normalize boolean arguments from native code by converting 1-255 to JNI_TRUE and

  1224     // 0 to JNI_FALSE.  Boolean return values from native are normalized the same in

  1225     // TemplateInterpreterGenerator::generate_result_handler_for and

  1226     // SharedRuntime::generate_native_wrapper.

  1227     jboolean b = (_ap++)->z;

  1228     _arguments->push_int((jint)(b == 0 ? JNI_FALSE : JNI_TRUE));

  1229   }

  1230   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }

  1231   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }

  1232   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }

  1233   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }

  1235   inline void get_long()   { _arguments->push_long((_ap++)->j);  }

  1236   inline void get_float()  { _arguments->push_float((_ap++)->f); }

  1237   inline void get_double() { _arguments->push_double((_ap++)->d);}

  1238   inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }

  1240   inline void set_ap(const jvalue *rap) { _ap = rap; }

  1242  public:

  1243   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)

  1244        : JNI_ArgumentPusher(signature) {

  1245     set_ap(rap);

  1246   }

  1247   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

  1248       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1249     set_ap(rap);

  1250   }

  1252   // Optimized path if we have the bitvector form of signature

  1253   void iterate( uint64_t fingerprint ) {

  1254     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments

  1255     else {

  1256       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1257                                   result_feature_mask);

  1258       assert(fingerprint, "Fingerprint should not be 0");

  1259       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1260       while ( 1 ) {

  1261         switch ( fingerprint & parameter_feature_mask ) {

  1262           case bool_parm:

  1263             get_bool();

  1264             break;

  1265           case char_parm:

  1266             get_char();

  1267             break;

  1268           case short_parm:

  1269             get_short();

  1270             break;

  1271           case byte_parm:

  1272             get_byte();

  1273             break;

  1274           case int_parm:

  1275             get_int();

  1276             break;

  1277           case obj_parm:

  1278             get_object();

  1279             break;

  1280           case long_parm:

  1281             get_long();

  1282             break;

  1283           case float_parm:

  1284             get_float();

  1285             break;

  1286           case double_parm:

  1287             get_double();

  1288             break;

  1289           case done_parm:

  1290             return;

  1291             break;

  1292           default:

  1293             ShouldNotReachHere();

  1294             break;

  1295         }

  1296         fingerprint >>= parameter_feature_size;

  1297       }

  1298     }

  1299   }

  1300 };

  1303 enum JNICallType {

  1304   JNI_STATIC,

  1305   JNI_VIRTUAL,

  1306   JNI_NONVIRTUAL

  1307 };

  1311 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1312   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1314   // Create object to hold arguments for the JavaCall, and associate it with

  1315   // the jni parser

  1316   ResourceMark rm(THREAD);

  1317   int number_of_parameters = method->size_of_parameters();

  1318   JavaCallArguments java_args(number_of_parameters);

  1319   args->set_java_argument_object(&java_args);

  1321   assert(method->is_static(), "method should be static");

  1323   // Fill out JavaCallArguments object

  1324   args->iterate( Fingerprinter(method).fingerprint() );

  1325   // Initialize result type

  1326   result->set_type(args->get_ret_type());

  1328   // Invoke the method. Result is returned as oop.

  1329   JavaCalls::call(result, method, &java_args, CHECK);

  1331   // Convert result

  1332   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1333     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1334   }

  1335 }

  1338 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1339   oop recv = JNIHandles::resolve(receiver);

  1340   if (recv == NULL) {

  1341     THROW(vmSymbols::java_lang_NullPointerException());

  1342   }

  1343   Handle h_recv(THREAD, recv);

  1345   int number_of_parameters;

  1346   Method* selected_method;

  1347   {

  1348     Method* m = Method::resolve_jmethod_id(method_id);

  1349     number_of_parameters = m->size_of_parameters();

  1350     Klass* holder = m->method_holder();

  1351     if (call_type != JNI_VIRTUAL) {

  1352         selected_method = m;

  1353     } else if (!m->has_itable_index()) {

  1354       // non-interface call -- for that little speed boost, don't handlize

  1355       debug_only(No_Safepoint_Verifier nosafepoint;)

  1356       // jni_GetMethodID makes sure class is linked and initialized

  1357       // so m should have a valid vtable index.

  1358       assert(m->valid_vtable_index(), "no valid vtable index");

  1359       int vtbl_index = m->vtable_index();

  1360       if (vtbl_index != Method::nonvirtual_vtable_index) {

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

  1362         // k might be an arrayKlassOop but all vtables start at

  1363         // the same place. The cast is to avoid virtual call and assertion.

  1364         InstanceKlass *ik = (InstanceKlass*)k;

  1365         selected_method = ik->method_at_vtable(vtbl_index);

  1366       } else {

  1367         // final method

  1368         selected_method = m;

  1369       }

  1370     } else {

  1371       // interface call

  1372       KlassHandle h_holder(THREAD, holder);

  1374       int itbl_index = m->itable_index();

  1375       Klass* k = h_recv->klass();

  1376       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1377     }

  1378   }

  1380   methodHandle method(THREAD, selected_method);

  1382   // Create object to hold arguments for the JavaCall, and associate it with

  1383   // the jni parser

  1384   ResourceMark rm(THREAD);

  1385   JavaCallArguments java_args(number_of_parameters);

  1386   args->set_java_argument_object(&java_args);

  1388   // handle arguments

  1389   assert(!method->is_static(), "method should not be static");

  1390   args->push_receiver(h_recv); // Push jobject handle

  1392   // Fill out JavaCallArguments object

  1393   args->iterate( Fingerprinter(method).fingerprint() );

  1394   // Initialize result type

  1395   result->set_type(args->get_ret_type());

  1397   // Invoke the method. Result is returned as oop.

  1398   JavaCalls::call(result, method, &java_args, CHECK);

  1400   // Convert result

  1401   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1402     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1403   }

  1404 }

  1407 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1408   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1409   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1410   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1411   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1412   return ih;

  1413 }

  1415 #ifndef USDT2

  1416 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1417 #else /* USDT2 */

  1418 DT_RETURN_MARK_DECL(AllocObject, jobject

  1419                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1420 #endif /* USDT2 */

  1422 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1423   JNIWrapper("AllocObject");

  1425 #ifndef USDT2

  1426   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1427 #else /* USDT2 */

  1428   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1429                                 env, clazz);

  1430 #endif /* USDT2 */

  1431   jobject ret = NULL;

  1432   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1434   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1435   ret = JNIHandles::make_local(env, i);

  1436   return ret;

  1437 JNI_END

  1439 #ifndef USDT2

  1440 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1441 #else /* USDT2 */

  1442 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1443                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1444 #endif /* USDT2 */

  1446 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1447   JNIWrapper("NewObjectA");

  1448 #ifndef USDT2

  1449   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1450 #else /* USDT2 */

  1451   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1452                                env, clazz, (uintptr_t) methodID);

  1453 #endif /* USDT2 */

  1454   jobject obj = NULL;

  1455   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1457   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1458   obj = JNIHandles::make_local(env, i);

  1459   JavaValue jvalue(T_VOID);

  1460   JNI_ArgumentPusherArray ap(methodID, args);

  1461   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1462   return obj;

  1463 JNI_END

  1465 #ifndef USDT2

  1466 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1467 #else /* USDT2 */

  1468 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1469                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1470 #endif /* USDT2 */

  1472 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1473   JNIWrapper("NewObjectV");

  1474 #ifndef USDT2

  1475   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1476 #else /* USDT2 */

  1477   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1478                                env, clazz, (uintptr_t) methodID);

  1479 #endif /* USDT2 */

  1480   jobject obj = NULL;

  1481   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1483   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1484   obj = JNIHandles::make_local(env, i);

  1485   JavaValue jvalue(T_VOID);

  1486   JNI_ArgumentPusherVaArg ap(methodID, args);

  1487   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1488   return obj;

  1489 JNI_END

  1491 #ifndef USDT2

  1492 DT_RETURN_MARK_DECL(NewObject, jobject);

  1493 #else /* USDT2 */

  1494 DT_RETURN_MARK_DECL(NewObject, jobject

  1495                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1496 #endif /* USDT2 */

  1498 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1499   JNIWrapper("NewObject");

  1500 #ifndef USDT2

  1501   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1502 #else /* USDT2 */

  1503   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1504                               env, clazz, (uintptr_t) methodID);

  1505 #endif /* USDT2 */

  1506   jobject obj = NULL;

  1507   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1509   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1510   obj = JNIHandles::make_local(env, i);

  1511   va_list args;

  1512   va_start(args, methodID);

  1513   JavaValue jvalue(T_VOID);

  1514   JNI_ArgumentPusherVaArg ap(methodID, args);

  1515   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1516   va_end(args);

  1517   return obj;

  1518 JNI_END

  1521 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1522   JNIWrapper("GetObjectClass");

  1523 #ifndef USDT2

  1524   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1525 #else /* USDT2 */

  1526   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1527                                    env, obj);

  1528 #endif /* USDT2 */

  1529   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1530   jclass ret =

  1531     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1532 #ifndef USDT2

  1533   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1534 #else /* USDT2 */

  1535   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1536                                     ret);

  1537 #endif /* USDT2 */

  1538   return ret;

  1539 JNI_END

  1541 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1542   JNIWrapper("IsInstanceOf");

  1543 #ifndef USDT2

  1544   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1545 #else /* USDT2 */

  1546   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1547                                  env, obj, clazz);

  1548 #endif /* USDT2 */

  1549   jboolean ret = JNI_TRUE;

  1550   if (obj != NULL) {

  1551     ret = JNI_FALSE;

  1552     Klass* k = java_lang_Class::as_Klass(

  1553       JNIHandles::resolve_non_null(clazz));

  1554     if (k != NULL) {

  1555       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1556     }

  1557   }

  1558 #ifndef USDT2

  1559   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1560 #else /* USDT2 */

  1561   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1562                                   ret);

  1563 #endif /* USDT2 */

  1564   return ret;

  1565 JNI_END

  1568 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1569                                const char *sig, bool is_static, TRAPS) {

  1570   // %%%% This code should probably just call into a method in the LinkResolver

  1571   //

  1572   // The class should have been loaded (we have an instance of the class

  1573   // passed in) so the method and signature should already be in the symbol

  1574   // table.  If they're not there, the method doesn't exist.

  1575   const char *name_to_probe = (name_str == NULL)

  1576                         ? vmSymbols::object_initializer_name()->as_C_string()

  1577                         : name_str;

  1578   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1579   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1581   if (name == NULL || signature == NULL) {

  1582     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1583   }

  1585   // Throw a NoSuchMethodError exception if we have an instance of a

  1586   // primitive java.lang.Class

  1587   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

  1588     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1589   }

  1591   KlassHandle klass(THREAD,

  1592                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1594   // Make sure class is linked and initialized before handing id's out to

  1595   // Method*s.

  1596   klass()->initialize(CHECK_NULL);

  1598   Method* m;

  1599   if (name == vmSymbols::object_initializer_name() ||

  1600       name == vmSymbols::class_initializer_name()) {

  1601     // Never search superclasses for constructors

  1602     if (klass->oop_is_instance()) {

  1603       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1604     } else {

  1605       m = NULL;

  1606     }

  1607   } else {

  1608     m = klass->lookup_method(name, signature);

  1609     if (m == NULL &&  klass->oop_is_instance()) {

  1610       m = InstanceKlass::cast(klass())->lookup_method_in_ordered_interfaces(name, signature);

  1611     }

  1612   }

  1613   if (m == NULL || (m->is_static() != is_static)) {

  1614     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1615   }

  1616   return m->jmethod_id();

  1617 }

  1620 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1621           const char *name, const char *sig))

  1622   JNIWrapper("GetMethodID");

  1623 #ifndef USDT2

  1624   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1625 #else /* USDT2 */

  1626   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1627                                 env, clazz, (char *) name, (char *) sig);

  1628 #endif /* USDT2 */

  1629   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1630 #ifndef USDT2

  1631   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1632 #else /* USDT2 */

  1633   HOTSPOT_JNI_GETMETHODID_RETURN(

  1634                                  (uintptr_t) ret);

  1635 #endif /* USDT2 */

  1636   return ret;

  1637 JNI_END

  1640 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1641           const char *name, const char *sig))

  1642   JNIWrapper("GetStaticMethodID");

  1643 #ifndef USDT2

  1644   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1645 #else /* USDT2 */

  1646   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1647                                       env, (char *) clazz, (char *) name, (char *)sig);

  1648 #endif /* USDT2 */

  1649   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1650 #ifndef USDT2

  1651   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1652 #else /* USDT2 */

  1653   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1654                                        (uintptr_t) ret);

  1655 #endif /* USDT2 */

  1656   return ret;

  1657 JNI_END

  1661 //

  1662 // Calling Methods

  1663 //

  1665 #ifndef USDT2

  1666 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1667 \

  1668   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

  1669   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\

  1670   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1671 \

  1672 JNI_ENTRY(ResultType, \

  1673           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1674   JNIWrapper("Call" XSTR(Result) "Method"); \

  1675 \

  1676   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1677   ResultType ret = 0;\

  1678   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1679                      (const ResultType&)ret);\

  1680 \

  1681   va_list args; \

  1682   va_start(args, methodID); \

  1683   JavaValue jvalue(Tag); \

  1684   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1685   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1686   va_end(args); \

  1687   ret = jvalue.get_##ResultType(); \

  1688   return ret;\

  1689 JNI_END \

  1690 \

  1691 \

  1692 JNI_ENTRY(ResultType, \

  1693           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1694   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1695 \

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

  1697   ResultType ret = 0;\

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

  1699                      (const ResultType&)ret);\

  1700 \

  1701   JavaValue jvalue(Tag); \

  1702   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

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

  1705   return ret;\

  1706 JNI_END \

  1707 \

  1708 \

  1709 JNI_ENTRY(ResultType, \

  1710           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1711   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1712   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1713   ResultType ret = 0;\

  1714   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1715                      (const ResultType&)ret);\

  1716 \

  1717   JavaValue jvalue(Tag); \

  1718   JNI_ArgumentPusherArray ap(methodID, args); \

  1719   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1720   ret = jvalue.get_##ResultType(); \

  1721   return ret;\

  1722 JNI_END

  1724 // the runtime type of subword integral basic types is integer

  1725 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1726 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1727 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1728 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1730 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1731 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1732 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1733 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1734 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1736 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1737 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1738 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1740 #else /* USDT2 */

  1742 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1743                           , EntryProbe, ReturnProbe)    \

  1744 \

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

  1746                           , ReturnProbe);                          \

  1747 \

  1748 JNI_ENTRY(ResultType, \

  1749           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1750   JNIWrapper("Call" XSTR(Result) "Method"); \

  1751 \

  1752   EntryProbe; \

  1753   ResultType ret = 0;\

  1754   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1755                      (const ResultType&)ret);\

  1756 \

  1757   va_list args; \

  1758   va_start(args, methodID); \

  1759   JavaValue jvalue(Tag); \

  1760   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1761   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1762   va_end(args); \

  1763   ret = jvalue.get_##ResultType(); \

  1764   return ret;\

  1765 JNI_END

  1767 // the runtime type of subword integral basic types is integer

  1768 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

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

  1770                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1771 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

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

  1773                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1774 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

  1775                   , HOTSPOT_JNI_CALLCHARMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1776                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1777 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

  1778                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1779                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1781 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1782                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1783                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1784 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

  1785                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1786                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1787 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

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

  1789                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1790 // Float and double probes don't return value because dtrace doesn't currently support it

  1791 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

  1792                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1793                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1794 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

  1795                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1796                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1798 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1799                           , EntryProbe, ReturnProbe)    \

  1800 \

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

  1802                           , ReturnProbe);                          \

  1803 \

  1804 JNI_ENTRY(ResultType, \

  1805           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1806   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1807 \

  1808   EntryProbe;\

  1809   ResultType ret = 0;\

  1810   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1811                      (const ResultType&)ret);\

  1812 \

  1813   JavaValue jvalue(Tag); \

  1814   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1815   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1816   ret = jvalue.get_##ResultType(); \

  1817   return ret;\

  1818 JNI_END

  1820 // the runtime type of subword integral basic types is integer

  1821 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

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

  1823                   HOTSPOT_JNI_CALLBOOLEANMETHODV_RETURN(_ret_ref))

  1824 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

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

  1826                   HOTSPOT_JNI_CALLBYTEMETHODV_RETURN(_ret_ref))

  1827 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

  1828                   , HOTSPOT_JNI_CALLCHARMETHODV_ENTRY(env, obj, (uintptr_t)methodID),

  1829                   HOTSPOT_JNI_CALLCHARMETHODV_RETURN(_ret_ref))

  1830 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

  1831                   , HOTSPOT_JNI_CALLSHORTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),

  1832                   HOTSPOT_JNI_CALLSHORTMETHODV_RETURN(_ret_ref))

  1834 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1835                   , HOTSPOT_JNI_CALLOBJECTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),

  1836                   HOTSPOT_JNI_CALLOBJECTMETHODV_RETURN(_ret_ref))

  1837 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

  1838                   HOTSPOT_JNI_CALLINTMETHODV_ENTRY(env, obj, (uintptr_t)methodID),

  1839                   HOTSPOT_JNI_CALLINTMETHODV_RETURN(_ret_ref))

  1840 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1842                   HOTSPOT_JNI_CALLLONGMETHODV_RETURN(_ret_ref))

  1843 // Float and double probes don't return value because dtrace doesn't currently support it

  1844 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1845                   , HOTSPOT_JNI_CALLFLOATMETHODV_ENTRY(env, obj, (uintptr_t)methodID),

  1846                   HOTSPOT_JNI_CALLFLOATMETHODV_RETURN())

  1847 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

  1848                   , HOTSPOT_JNI_CALLDOUBLEMETHODV_ENTRY(env, obj, (uintptr_t)methodID),

  1849                   HOTSPOT_JNI_CALLDOUBLEMETHODV_RETURN())

  1851 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1852                           , EntryProbe, ReturnProbe)    \

  1853 \

  1854   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1855                           , ReturnProbe);                          \

  1856 \

  1857 JNI_ENTRY(ResultType, \

  1858           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1859   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1860   EntryProbe; \

  1861   ResultType ret = 0;\

  1862   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1863                      (const ResultType&)ret);\

  1864 \

  1865   JavaValue jvalue(Tag); \

  1866   JNI_ArgumentPusherArray ap(methodID, args); \

  1867   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1868   ret = jvalue.get_##ResultType(); \

  1869   return ret;\

  1870 JNI_END

  1872 // the runtime type of subword integral basic types is integer

  1873 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

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

  1875                   HOTSPOT_JNI_CALLBOOLEANMETHODA_RETURN(_ret_ref))

  1876 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

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

  1878                   HOTSPOT_JNI_CALLBYTEMETHODA_RETURN(_ret_ref))

  1879 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

  1880                   , HOTSPOT_JNI_CALLCHARMETHODA_ENTRY(env, obj, (uintptr_t)methodID),

  1881                   HOTSPOT_JNI_CALLCHARMETHODA_RETURN(_ret_ref))

  1882 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

  1883                   , HOTSPOT_JNI_CALLSHORTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),

  1884                   HOTSPOT_JNI_CALLSHORTMETHODA_RETURN(_ret_ref))

  1886 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1887                   , HOTSPOT_JNI_CALLOBJECTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),

  1888                   HOTSPOT_JNI_CALLOBJECTMETHODA_RETURN(_ret_ref))

  1889 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

  1890                   HOTSPOT_JNI_CALLINTMETHODA_ENTRY(env, obj, (uintptr_t)methodID),

  1891                   HOTSPOT_JNI_CALLINTMETHODA_RETURN(_ret_ref))

  1892 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

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

  1894                   HOTSPOT_JNI_CALLLONGMETHODA_RETURN(_ret_ref))

  1895 // Float and double probes don't return value because dtrace doesn't currently support it

  1896 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1897                   , HOTSPOT_JNI_CALLFLOATMETHODA_ENTRY(env, obj, (uintptr_t)methodID),

  1898                   HOTSPOT_JNI_CALLFLOATMETHODA_RETURN())

  1899 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1900                   , HOTSPOT_JNI_CALLDOUBLEMETHODA_ENTRY(env, obj, (uintptr_t)methodID),

  1901                   HOTSPOT_JNI_CALLDOUBLEMETHODA_RETURN())

  1903 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1904 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1905 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1907 #endif /* USDT2 */

  1909 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1910   JNIWrapper("CallVoidMethod");

  1911 #ifndef USDT2

  1912   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1913 #else /* USDT2 */

  1914   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1915                                    env, obj, (uintptr_t) methodID);

  1916 #endif /* USDT2 */

  1917   DT_VOID_RETURN_MARK(CallVoidMethod);

  1919   va_list args;

  1920   va_start(args, methodID);

  1921   JavaValue jvalue(T_VOID);

  1922   JNI_ArgumentPusherVaArg ap(methodID, args);

  1923   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1924   va_end(args);

  1925 JNI_END

  1928 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1929   JNIWrapper("CallVoidMethodV");

  1930 #ifndef USDT2

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

  1932 #else /* USDT2 */

  1933   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1934                                     env, obj, (uintptr_t) methodID);

  1935 #endif /* USDT2 */

  1936   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1938   JavaValue jvalue(T_VOID);

  1939   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  1941 JNI_END

  1944 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1945   JNIWrapper("CallVoidMethodA");

  1946 #ifndef USDT2

  1947   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1948 #else /* USDT2 */

  1949   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1950                                     env, obj, (uintptr_t) methodID);

  1951 #endif /* USDT2 */

  1952   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1954   JavaValue jvalue(T_VOID);

  1955   JNI_ArgumentPusherArray ap(methodID, args);

  1956   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1957 JNI_END

  1960 #ifndef USDT2

  1961 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1962 \

  1963   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

  1964   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\

  1965   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1966 \

  1967 JNI_ENTRY(ResultType, \

  1968           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1969   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1970 \

  1971   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1972   ResultType ret;\

  1973   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1974                      (const ResultType&)ret);\

  1975 \

  1976   va_list args; \

  1977   va_start(args, methodID); \

  1978   JavaValue jvalue(Tag); \

  1979   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

  1981   va_end(args); \

  1982   ret = jvalue.get_##ResultType(); \

  1983   return ret;\

  1984 JNI_END \

  1985 \

  1986 JNI_ENTRY(ResultType, \

  1987           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  1988   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

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

  1990   ResultType ret;\

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

  1992                      (const ResultType&)ret);\

  1993 \

  1994   JavaValue jvalue(Tag); \

  1995   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1996   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1997   ret = jvalue.get_##ResultType(); \

  1998   return ret;\

  1999 JNI_END \

  2000 \

  2001 JNI_ENTRY(ResultType, \

  2002           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2003   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2004   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  2005   ResultType ret;\

  2006   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2007                      (const ResultType&)ret);\

  2008 \

  2009   JavaValue jvalue(Tag); \

  2010   JNI_ArgumentPusherArray ap(methodID, args); \

  2011   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2012   ret = jvalue.get_##ResultType(); \

  2013   return ret;\

  2014 JNI_END

  2016 // the runtime type of subword integral basic types is integer

  2017 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2018 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2019 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2020 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2022 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2023 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2024 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2025 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2026 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2029 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2030 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2031 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2033 #else /* USDT2 */

  2035 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2036                                     , EntryProbe, ReturnProbe)      \

  2037 \

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

  2039                           , ReturnProbe);\

  2040 \

  2041 JNI_ENTRY(ResultType, \

  2042           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2043   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2044 \

  2045   EntryProbe;\

  2046   ResultType ret;\

  2047   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2048                      (const ResultType&)ret);\

  2049 \

  2050   va_list args; \

  2051   va_start(args, methodID); \

  2052   JavaValue jvalue(Tag); \

  2053   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2054   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2055   va_end(args); \

  2056   ret = jvalue.get_##ResultType(); \

  2057   return ret;\

  2058 JNI_END

  2060 // the runtime type of subword integral basic types is integer

  2061 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2063                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2064 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

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

  2066                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2067 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

  2068                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2069                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2070 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

  2071                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2072                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2074 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2075                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2076                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2077 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

  2078                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2079                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2080 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

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

  2082 // Float and double probes don't return value because dtrace doesn't currently support it

  2083                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2084 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

  2085                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2086                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2087 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

  2088                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2089                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2091 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2092                                     , EntryProbe, ReturnProbe)      \

  2093 \

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

  2095                           , ReturnProbe);\

  2096 \

  2097 JNI_ENTRY(ResultType, \

  2098           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2099   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2100 \

  2101   EntryProbe;\

  2102   ResultType ret;\

  2103   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2104                      (const ResultType&)ret);\

  2105 \

  2106   JavaValue jvalue(Tag); \

  2107   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2108   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2109   ret = jvalue.get_##ResultType(); \

  2110   return ret;\

  2111 JNI_END

  2113 // the runtime type of subword integral basic types is integer

  2114 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2116                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2117 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

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

  2119                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2120 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

  2121                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2122                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2123 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

  2124                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2125                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2127 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2128                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2129                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2130 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

  2131                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2132                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2133 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

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

  2135 // Float and double probes don't return value because dtrace doesn't currently support it

  2136                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2137 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

  2138                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2139                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2140 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

  2141                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2142                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2144 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2145                                     , EntryProbe, ReturnProbe)      \

  2146 \

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

  2148                           , ReturnProbe);\

  2149 \

  2150 JNI_ENTRY(ResultType, \

  2151           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2152   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2153 \

  2154   EntryProbe;\

  2155   ResultType ret;\

  2156   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2157                      (const ResultType&)ret);\

  2158 \

  2159   JavaValue jvalue(Tag); \

  2160   JNI_ArgumentPusherArray ap(methodID, args); \

  2161   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2162   ret = jvalue.get_##ResultType(); \

  2163   return ret;\

  2164 JNI_END

  2166 // the runtime type of subword integral basic types is integer

  2167 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2169                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2170 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

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

  2172                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2173 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

  2174                             , HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2175                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2176 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

  2177                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2178                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2180 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2181                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2182                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2183 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

  2184                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2185                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2186 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2188 // Float and double probes don't return value because dtrace doesn't currently support it

  2189                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2190 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2191                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2192                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2193 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2194                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2195                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2197 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2198                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2199 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2200                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2201 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2202                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2203 #endif /* USDT2 */

  2205 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2206   JNIWrapper("CallNonvirtualVoidMethod");

  2208 #ifndef USDT2

  2209   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2210                env, obj, cls, methodID);

  2211 #else /* USDT2 */

  2212   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

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

  2214 #endif /* USDT2 */

  2215   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2217   va_list args;

  2218   va_start(args, methodID);

  2219   JavaValue jvalue(T_VOID);

  2220   JNI_ArgumentPusherVaArg ap(methodID, args);

  2221   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2222   va_end(args);

  2223 JNI_END

  2226 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2227   JNIWrapper("CallNonvirtualVoidMethodV");

  2229 #ifndef USDT2

  2230   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2231                env, obj, cls, methodID);

  2232 #else /* USDT2 */

  2233   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2234                env, obj, cls, (uintptr_t) methodID);

  2235 #endif /* USDT2 */

  2236   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2238   JavaValue jvalue(T_VOID);

  2239   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  2241 JNI_END

  2244 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2245   JNIWrapper("CallNonvirtualVoidMethodA");

  2246 #ifndef USDT2

  2247   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2248                 env, obj, cls, methodID);

  2249 #else /* USDT2 */

  2250   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2251                 env, obj, cls, (uintptr_t) methodID);

  2252 #endif /* USDT2 */

  2253   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2254   JavaValue jvalue(T_VOID);

  2255   JNI_ArgumentPusherArray ap(methodID, args);

  2256   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2257 JNI_END

  2260 #ifndef USDT2

  2261 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2262 \

  2263   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

  2264   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\

  2265   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2266 \

  2267 JNI_ENTRY(ResultType, \

  2268           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2269   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2270 \

  2271   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2272   ResultType ret = 0;\

  2273   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2274                      (const ResultType&)ret);\

  2275 \

  2276   va_list args; \

  2277   va_start(args, methodID); \

  2278   JavaValue jvalue(Tag); \

  2279   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

  2281   va_end(args); \

  2282   ret = jvalue.get_##ResultType(); \

  2283   return ret;\

  2284 JNI_END \

  2285 \

  2286 JNI_ENTRY(ResultType, \

  2287           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

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

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

  2290   ResultType ret = 0;\

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

  2292                      (const ResultType&)ret);\

  2293 \

  2294   JavaValue jvalue(Tag); \

  2295   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2296   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2297   ret = jvalue.get_##ResultType(); \

  2298   return ret;\

  2299 JNI_END \

  2300 \

  2301 JNI_ENTRY(ResultType, \

  2302           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2303   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2304   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2305   ResultType ret = 0;\

  2306   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2307                      (const ResultType&)ret);\

  2308 \

  2309   JavaValue jvalue(Tag); \

  2310   JNI_ArgumentPusherArray ap(methodID, args); \

  2311   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2312   ret = jvalue.get_##ResultType(); \

  2313   return ret;\

  2314 JNI_END

  2316 // the runtime type of subword integral basic types is integer

  2317 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2318 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2319 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2320 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2322 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2323 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2324 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2325 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2326 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2329 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2330 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2331 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2333 #else /* USDT2 */

  2335 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2336                                 , EntryProbe, ResultProbe) \

  2337 \

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

  2339                           , ResultProbe);                               \

  2340 \

  2341 JNI_ENTRY(ResultType, \

  2342           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2343   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2344 \

  2345   EntryProbe; \

  2346   ResultType ret = 0;\

  2347   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2348                      (const ResultType&)ret);\

  2349 \

  2350   va_list args; \

  2351   va_start(args, methodID); \

  2352   JavaValue jvalue(Tag); \

  2353   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2354   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2355   va_end(args); \

  2356   ret = jvalue.get_##ResultType(); \

  2357   return ret;\

  2358 JNI_END

  2360 // the runtime type of subword integral basic types is integer

  2361 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2363                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2364 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

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

  2366                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2367 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

  2368                         , HOTSPOT_JNI_CALLSTATICCHARMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2369                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2370 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

  2371                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2372                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2374 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2375                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2376                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2377 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

  2378                         , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2379                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2380 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2382                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2383 // Float and double probes don't return value because dtrace doesn't currently support it

  2384 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2385                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2386                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2387 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

  2388                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2389                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2391 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2392                                 , EntryProbe, ResultProbe) \

  2393 \

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

  2395                           , ResultProbe);                               \

  2396 \

  2397 JNI_ENTRY(ResultType, \

  2398           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2399   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2400 \

  2401   EntryProbe; \

  2402   ResultType ret = 0;\

  2403   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2404                      (const ResultType&)ret);\

  2405 \

  2406   JavaValue jvalue(Tag); \

  2407   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2408   /* Make sure class is initialized before trying to invoke its method */ \

  2409   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2410   k()->initialize(CHECK_0); \

  2411   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2412   va_end(args); \

  2413   ret = jvalue.get_##ResultType(); \

  2414   return ret;\

  2415 JNI_END

  2417 // the runtime type of subword integral basic types is integer

  2418 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2420                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2421 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

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

  2423                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2424 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

  2425                         , HOTSPOT_JNI_CALLSTATICCHARMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2426                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2427 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

  2428                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2429                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2431 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2432                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2433                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2434 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

  2435                         , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2436                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2437 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

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

  2439                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2440 // Float and double probes don't return value because dtrace doesn't currently support it

  2441 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

  2442                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2443                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2444 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

  2445                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2446                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2448 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2449                                 , EntryProbe, ResultProbe) \

  2450 \

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

  2452                           , ResultProbe);                               \

  2453 \

  2454 JNI_ENTRY(ResultType, \

  2455           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2456   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2457 \

  2458   EntryProbe; \

  2459   ResultType ret = 0;\

  2460   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2461                      (const ResultType&)ret);\

  2462 \

  2463   JavaValue jvalue(Tag); \

  2464   JNI_ArgumentPusherArray ap(methodID, args); \

  2465   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2466   ret = jvalue.get_##ResultType(); \

  2467   return ret;\

  2468 JNI_END

  2470 // the runtime type of subword integral basic types is integer

  2471 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2473                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2474 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

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

  2476                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2477 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

  2478                         , HOTSPOT_JNI_CALLSTATICCHARMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2479                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2480 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

  2481                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2482                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2484 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2485                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2486                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2487 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

  2488                         , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2489                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2490 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

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

  2492                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2493 // Float and double probes don't return value because dtrace doesn't currently support it

  2494 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2495                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2496                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2497 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2498                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2499                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2501 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2502                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2503 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2504                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2505 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2506                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2507 #endif /* USDT2 */

  2509 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2510   JNIWrapper("CallStaticVoidMethod");

  2511 #ifndef USDT2

  2512   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2513 #else /* USDT2 */

  2514   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2515                                          env, cls, (uintptr_t) methodID);

  2516 #endif /* USDT2 */

  2517   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2519   va_list args;

  2520   va_start(args, methodID);

  2521   JavaValue jvalue(T_VOID);

  2522   JNI_ArgumentPusherVaArg ap(methodID, args);

  2523   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2524   va_end(args);

  2525 JNI_END

  2528 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2529   JNIWrapper("CallStaticVoidMethodV");

  2530 #ifndef USDT2

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

  2532 #else /* USDT2 */

  2533   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2534                                           env, cls, (uintptr_t) methodID);

  2535 #endif /* USDT2 */

  2536   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2538   JavaValue jvalue(T_VOID);

  2539   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  2541 JNI_END

  2544 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2545   JNIWrapper("CallStaticVoidMethodA");

  2546 #ifndef USDT2

  2547   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2548 #else /* USDT2 */

  2549   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2550                                           env, cls, (uintptr_t) methodID);

  2551 #endif /* USDT2 */

  2552   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2554   JavaValue jvalue(T_VOID);

  2555   JNI_ArgumentPusherArray ap(methodID, args);

  2556   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2557 JNI_END

  2560 //

  2561 // Accessing Fields

  2562 //

  2565 #ifndef USDT2

  2566 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2567 #else /* USDT2 */

  2568 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2569                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2570 #endif /* USDT2 */

  2572 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2573           const char *name, const char *sig))

  2574   JNIWrapper("GetFieldID");

  2575 #ifndef USDT2

  2576   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2577 #else /* USDT2 */

  2578   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2579                                env, clazz, (char *) name, (char *) sig);

  2580 #endif /* USDT2 */

  2581   jfieldID ret = 0;

  2582   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2584   // The class should have been loaded (we have an instance of the class

  2585   // passed in) so the field and signature should already be in the symbol

  2586   // table.  If they're not there, the field doesn't exist.

  2587   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2588   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2589   if (fieldname == NULL || signame == NULL) {

  2590     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2591   }

  2592   KlassHandle k(THREAD,

  2593                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2594   // Make sure class is initialized before handing id's out to fields

  2595   k()->initialize(CHECK_NULL);

  2597   fieldDescriptor fd;

  2598   if (!k()->oop_is_instance() ||

  2599       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2600     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2601   }

  2603   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2604   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2605   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2606   return ret;

  2607 JNI_END

  2610 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2611   JNIWrapper("GetObjectField");

  2612 #ifndef USDT2

  2613   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2614 #else /* USDT2 */

  2615   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2616                                    env, obj, (uintptr_t) fieldID);

  2617 #endif /* USDT2 */

  2618   oop o = JNIHandles::resolve_non_null(obj);

  2619   Klass* k = o->klass();

  2620   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2621   // Keep JVMTI addition small and only check enabled flag here.

  2622   // jni_GetField_probe() assumes that is okay to create handles.

  2623   if (JvmtiExport::should_post_field_access()) {

  2624     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2625   }

  2626   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2627 #if INCLUDE_ALL_GCS

  2628   // If G1 is enabled and we are accessing the value of the referent

  2629   // field in a reference object then we need to register a non-null

  2630   // referent with the SATB barrier.

  2631   if (UseG1GC) {

  2632     bool needs_barrier = false;

  2634     if (ret != NULL &&

  2635         offset == java_lang_ref_Reference::referent_offset &&

  2636         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2637       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2638       needs_barrier = true;

  2639     }

  2641     if (needs_barrier) {

  2642       oop referent = JNIHandles::resolve(ret);

  2643       G1SATBCardTableModRefBS::enqueue(referent);

  2644     }

  2645   }

  2646 #endif // INCLUDE_ALL_GCS

  2647 #ifndef USDT2

  2648   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2649 #else /* USDT2 */

  2650 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2651                                   ret);

  2652 #endif /* USDT2 */

  2653   return ret;

  2654 JNI_END

  2657 #ifndef USDT2

  2658 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2659 \

  2660   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2661 \

  2662 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2663   JNIWrapper("Get" XSTR(Result) "Field"); \

  2664 \

  2665   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2666   Return ret = 0;\

  2667   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2668 \

  2669   oop o = JNIHandles::resolve_non_null(obj); \

  2670   Klass* k = o->klass(); \

  2671   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2672   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2673   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2674   /* and creates a ResetNoHandleMark.                                   */ \

  2675   if (JvmtiExport::should_post_field_access()) { \

  2676     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2677   } \

  2678   ret = o->Fieldname##_field(offset); \

  2679   return ret; \

  2680 JNI_END

  2682 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2683 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2684 DEFINE_GETFIELD(jchar,    char,   Char)

  2685 DEFINE_GETFIELD(jshort,   short,  Short)

  2686 DEFINE_GETFIELD(jint,     int,    Int)

  2687 DEFINE_GETFIELD(jlong,    long,   Long)

  2688 DEFINE_GETFIELD(jfloat,   float,  Float)

  2689 DEFINE_GETFIELD(jdouble,  double, Double)

  2691 #else /* USDT2 */

  2693 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2694   , EntryProbe, ReturnProbe) \

  2695 \

  2696   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2697   , ReturnProbe); \

  2698 \

  2699 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2700   JNIWrapper("Get" XSTR(Result) "Field"); \

  2701 \

  2702   EntryProbe; \

  2703   Return ret = 0;\

  2704   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2705 \

  2706   oop o = JNIHandles::resolve_non_null(obj); \

  2707   Klass* k = o->klass(); \

  2708   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2709   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2710   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2711   /* and creates a ResetNoHandleMark.                                   */ \

  2712   if (JvmtiExport::should_post_field_access()) { \

  2713     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2714   } \

  2715   ret = o->Fieldname##_field(offset); \

  2716   return ret; \

  2717 JNI_END

  2719 DEFINE_GETFIELD(jboolean, bool,   Boolean

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

  2721                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2722 DEFINE_GETFIELD(jbyte,    byte,   Byte

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

  2724                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2725 DEFINE_GETFIELD(jchar,    char,   Char

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

  2727                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2728 DEFINE_GETFIELD(jshort,   short,  Short

  2729                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2730                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2731 DEFINE_GETFIELD(jint,     int,    Int

  2732                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2733                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2734 DEFINE_GETFIELD(jlong,    long,   Long

  2735                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2736                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2737 // Float and double probes don't return value because dtrace doesn't currently support it

  2738 DEFINE_GETFIELD(jfloat,   float,  Float

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

  2740                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2741 DEFINE_GETFIELD(jdouble,  double, Double

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

  2743                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2744 #endif /* USDT2 */

  2746 address jni_GetBooleanField_addr() {

  2747   return (address)jni_GetBooleanField;

  2748 }

  2749 address jni_GetByteField_addr() {

  2750   return (address)jni_GetByteField;

  2751 }

  2752 address jni_GetCharField_addr() {

  2753   return (address)jni_GetCharField;

  2754 }

  2755 address jni_GetShortField_addr() {

  2756   return (address)jni_GetShortField;

  2757 }

  2758 address jni_GetIntField_addr() {

  2759   return (address)jni_GetIntField;

  2760 }

  2761 address jni_GetLongField_addr() {

  2762   return (address)jni_GetLongField;

  2763 }

  2764 address jni_GetFloatField_addr() {

  2765   return (address)jni_GetFloatField;

  2766 }

  2767 address jni_GetDoubleField_addr() {

  2768   return (address)jni_GetDoubleField;

  2769 }

  2771 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2772   JNIWrapper("SetObjectField");

  2773 #ifndef USDT2

  2774   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2775 #else /* USDT2 */

  2776   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2777                                    env, obj, (uintptr_t) fieldID, value);

  2778 #endif /* USDT2 */

  2779   oop o = JNIHandles::resolve_non_null(obj);

  2780   Klass* k = o->klass();

  2781   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2782   // Keep JVMTI addition small and only check enabled flag here.

  2783   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2784   // and creates a ResetNoHandleMark.

  2785   if (JvmtiExport::should_post_field_modification()) {

  2786     jvalue field_value;

  2787     field_value.l = value;

  2788     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2789   }

  2790   o->obj_field_put(offset, JNIHandles::resolve(value));

  2791 #ifndef USDT2

  2792   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2793 #else /* USDT2 */

  2794   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2795 );

  2796 #endif /* USDT2 */

  2797 JNI_END

  2799 #ifndef USDT2

  2800 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2801 \

  2802 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2803   JNIWrapper("Set" XSTR(Result) "Field"); \

  2804 \

  2805   FP_SELECT_##Result( \

  2806     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2807     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2808 \

  2809   oop o = JNIHandles::resolve_non_null(obj); \

  2810   Klass* k = o->klass(); \

  2811   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2812   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2813   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2814   /* and creates a ResetNoHandleMark.                                   */ \

  2815   if (JvmtiExport::should_post_field_modification()) { \

  2816     jvalue field_value; \

  2817     field_value.unionType = value; \

  2818     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2819   } \

  2820   o->Fieldname##_field_put(offset, value); \

  2821   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2822 JNI_END

  2824 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2825 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2826 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2827 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2828 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2829 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2830 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2831 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2833 #else /* USDT2 */

  2835 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2836                         , EntryProbe, ReturnProbe) \

  2837 \

  2838 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2839   JNIWrapper("Set" XSTR(Result) "Field"); \

  2840 \

  2841   EntryProbe; \

  2842 \

  2843   oop o = JNIHandles::resolve_non_null(obj); \

  2844   Klass* k = o->klass(); \

  2845   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2846   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2847   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2848   /* and creates a ResetNoHandleMark.                                   */ \

  2849   if (JvmtiExport::should_post_field_modification()) { \

  2850     jvalue field_value; \

  2851     field_value.unionType = value; \

  2852     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2853   } \

  2854   if (SigType == 'Z') { value = ((jboolean)value) & 1; } \

  2855   o->Fieldname##_field_put(offset, value); \

  2856   ReturnProbe; \

  2857 JNI_END

  2859 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2860                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2861                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2862 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2863                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2864                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2865 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2866                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2867                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2868 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2869                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2870                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2871 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

  2872                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2873                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2874 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

  2875                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2876                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2877 // Float and double probes don't return value because dtrace doesn't currently support it

  2878 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2879                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2880                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2881 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2882                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2883                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2884 #endif /* USDT2 */

  2886 #ifndef USDT2

  2887 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2888 #else /* USDT2 */

  2889 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2890                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2891 #endif /* USDT2 */

  2893 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2894   JNIWrapper("ToReflectedField");

  2895 #ifndef USDT2

  2896   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2897                 env, cls, fieldID, isStatic);

  2898 #else /* USDT2 */

  2899   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2900                 env, cls, (uintptr_t) fieldID, isStatic);

  2901 #endif /* USDT2 */

  2902   jobject ret = NULL;

  2903   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2905   fieldDescriptor fd;

  2906   bool found = false;

  2907   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2909   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2911   if (isStatic) {

  2912     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2913     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2914     assert(id->is_static_field_id(), "invalid static field id");

  2915     found = id->find_local_field(&fd);

  2916   } else {

  2917     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2918     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2919     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2920   }

  2921   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2922   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2923   ret = JNIHandles::make_local(env, reflected);

  2924   return ret;

  2925 JNI_END

  2928 //

  2929 // Accessing Static Fields

  2930 //

  2931 #ifndef USDT2

  2932 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2933 #else /* USDT2 */

  2934 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2935                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2936 #endif /* USDT2 */

  2938 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2939           const char *name, const char *sig))

  2940   JNIWrapper("GetStaticFieldID");

  2941 #ifndef USDT2

  2942   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2943 #else /* USDT2 */

  2944   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2945                                      env, clazz, (char *) name, (char *) sig);

  2946 #endif /* USDT2 */

  2947   jfieldID ret = NULL;

  2948   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2950   // The class should have been loaded (we have an instance of the class

  2951   // passed in) so the field and signature should already be in the symbol

  2952   // table.  If they're not there, the field doesn't exist.

  2953   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2954   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2955   if (fieldname == NULL || signame == NULL) {

  2956     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2957   }

  2958   KlassHandle k(THREAD,

  2959                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2960   // Make sure class is initialized before handing id's out to static fields

  2961   k()->initialize(CHECK_NULL);

  2963   fieldDescriptor fd;

  2964   if (!k()->oop_is_instance() ||

  2965       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2966     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2967   }

  2969   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2970   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2971   debug_only(id->set_is_static_field_id();)

  2973   debug_only(id->verify(fd.field_holder()));

  2975   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2976   return ret;

  2977 JNI_END

  2980 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2981   JNIWrapper("GetStaticObjectField");

  2982 #ifndef USDT2

  2983   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  2984 #else /* USDT2 */

  2985   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  2986                                          env, clazz, (uintptr_t) fieldID);

  2987 #endif /* USDT2 */

  2988 #if INCLUDE_JNI_CHECK

  2989   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  2990 #endif // INCLUDE_JNI_CHECK

  2991   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2992   assert(id->is_static_field_id(), "invalid static field id");

  2993   // Keep JVMTI addition small and only check enabled flag here.

  2994   // jni_GetField_probe() assumes that is okay to create handles.

  2995   if (JvmtiExport::should_post_field_access()) {

  2996     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  2997   }

  2998   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  2999 #ifndef USDT2

  3000   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  3001 #else /* USDT2 */

  3002   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  3003                                           ret);

  3004 #endif /* USDT2 */

  3005   return ret;

  3006 JNI_END

  3008 #ifndef USDT2

  3009 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  3010 \

  3011   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3012 \

  3013 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3014   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3015   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3016   Return ret = 0;\

  3017   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3018                      (const Return&)ret);\

  3019   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3020   assert(id->is_static_field_id(), "invalid static field id"); \

  3021   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3022   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3023   if (JvmtiExport::should_post_field_access()) { \

  3024     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3025   } \

  3026   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3027   return ret;\

  3028 JNI_END

  3030 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3031 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3032 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3033 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3034 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3035 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3036 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3037 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3039 #else /* USDT2 */

  3041 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3042                               , EntryProbe, ReturnProbe) \

  3043 \

  3044   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3045                           , ReturnProbe);                                          \

  3046 \

  3047 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3048   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3049   EntryProbe; \

  3050   Return ret = 0;\

  3051   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3052                      (const Return&)ret);\

  3053   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3054   assert(id->is_static_field_id(), "invalid static field id"); \

  3055   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3056   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3057   if (JvmtiExport::should_post_field_access()) { \

  3058     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3059   } \

  3060   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3061   return ret;\

  3062 JNI_END

  3064 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3065                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3066 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3067                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3068 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3069                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3070 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3071                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3072 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3073                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3074 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3075                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3076 // Float and double probes don't return value because dtrace doesn't currently support it

  3077 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3078                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3079 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3080                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3081 #endif /* USDT2 */

  3083 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3084   JNIWrapper("SetStaticObjectField");

  3085 #ifndef USDT2

  3086   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3087 #else /* USDT2 */

  3088  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3089                                         env, clazz, (uintptr_t) fieldID, value);

  3090 #endif /* USDT2 */

  3091   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3092   assert(id->is_static_field_id(), "invalid static field id");

  3093   // Keep JVMTI addition small and only check enabled flag here.

  3094   // jni_SetField_probe() assumes that is okay to create handles.

  3095   if (JvmtiExport::should_post_field_modification()) {

  3096     jvalue field_value;

  3097     field_value.l = value;

  3098     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3099   }

  3100   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3101 #ifndef USDT2

  3102   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3103 #else /* USDT2 */

  3104   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3105                                           );

  3106 #endif /* USDT2 */

  3107 JNI_END

  3110 #ifndef USDT2

  3111 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3112 \

  3113 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3114   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3115   FP_SELECT_##Result( \

  3116      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3117      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3118 \

  3119   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3120   assert(id->is_static_field_id(), "invalid static field id"); \

  3121   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3122   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3123   if (JvmtiExport::should_post_field_modification()) { \

  3124     jvalue field_value; \

  3125     field_value.unionType = value; \

  3126     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3127   } \

  3128   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3129   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3130 JNI_END

  3132 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3133 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3134 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3135 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3136 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3137 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3138 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3139 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3141 #else /* USDT2 */

  3143 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3144                               , EntryProbe, ReturnProbe) \

  3145 \

  3146 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3147   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3148   EntryProbe; \

  3149 \

  3150   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3151   assert(id->is_static_field_id(), "invalid static field id"); \

  3152   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3153   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3154   if (JvmtiExport::should_post_field_modification()) { \

  3155     jvalue field_value; \

  3156     field_value.unionType = value; \

  3157     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3158   } \

  3159   if (SigType == 'Z') { value = ((jboolean)value) & 1; } \

  3160   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3161   ReturnProbe;\

  3162 JNI_END

  3164 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3165                       , HOTSPOT_JNI_SETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3166                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3167 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3168                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3169                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3170 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3171                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3172                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3173 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3174                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3175                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3176 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3177                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3178                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3179 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3180                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3181                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3182 // Float and double probes don't return value because dtrace doesn't currently support it

  3183 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3184                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3185                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3186 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3187                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3188                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3189 #endif /* USDT2 */

  3191 //

  3192 // String Operations

  3193 //

  3195 // Unicode Interface

  3197 #ifndef USDT2

  3198 DT_RETURN_MARK_DECL(NewString, jstring);

  3199 #else /* USDT2 */

  3200 DT_RETURN_MARK_DECL(NewString, jstring

  3201                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3202 #endif /* USDT2 */

  3204 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3205   JNIWrapper("NewString");

  3206 #ifndef USDT2

  3207   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3208 #else /* USDT2 */

  3209  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3210                              env, (uint16_t *) unicodeChars, len);

  3211 #endif /* USDT2 */

  3212   jstring ret = NULL;

  3213   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3214   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3215   ret = (jstring) JNIHandles::make_local(env, string);

  3216   return ret;

  3217 JNI_END

  3220 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3221   JNIWrapper("GetStringLength");

  3222 #ifndef USDT2

  3223   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3224 #else /* USDT2 */

  3225   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3226                                     env, string);

  3227 #endif /* USDT2 */

  3228   jsize ret = 0;

  3229   oop s = JNIHandles::resolve_non_null(string);

  3230   if (java_lang_String::value(s) != NULL) {

  3231     ret = java_lang_String::length(s);

  3232   }

  3233 #ifndef USDT2

  3234   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3235 #else /* USDT2 */

  3236  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3237                                     ret);

  3238 #endif /* USDT2 */

  3239   return ret;

  3240 JNI_END

  3243 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3244   JNIEnv *env, jstring string, jboolean *isCopy))

  3245   JNIWrapper("GetStringChars");

  3246 #ifndef USDT2

  3247   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3248 #else /* USDT2 */

  3249  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3250                                   env, string, (uintptr_t *) isCopy);

  3251 #endif /* USDT2 */

  3252   jchar* buf = NULL;

  3253   oop s = JNIHandles::resolve_non_null(string);

  3254   typeArrayOop s_value = java_lang_String::value(s);

  3255   if (s_value != NULL) {

  3256     int s_len = java_lang_String::length(s);

  3257     int s_offset = java_lang_String::offset(s);

  3258     buf = NEW_C_HEAP_ARRAY_RETURN_NULL(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3259     /* JNI Specification states return NULL on OOM */

  3260     if (buf != NULL) {

  3261       if (s_len > 0) {

  3262         memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3263       }

  3264       buf[s_len] = 0;

  3265       //%note jni_5

  3266       if (isCopy != NULL) {

  3267         *isCopy = JNI_TRUE;

  3268       }

  3269     }

  3270   }

  3271 #ifndef USDT2

  3272   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3273 #else /* USDT2 */

  3274   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3275                                     buf);

  3276 #endif /* USDT2 */

  3277   return buf;

  3278 JNI_END

  3281 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3282   JNIWrapper("ReleaseStringChars");

  3283 #ifndef USDT2

  3284   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3285 #else /* USDT2 */

  3286   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3287                                        env, str, (uint16_t *) chars);

  3288 #endif /* USDT2 */

  3289   //%note jni_6

  3290   if (chars != NULL) {

  3291     // Since String objects are supposed to be immutable, don't copy any

  3292     // new data back.  A bad user will have to go after the char array.

  3293     FreeHeap((void*) chars);

  3294   }

  3295 #ifndef USDT2

  3296   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3297 #else /* USDT2 */

  3298   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3299 );

  3300 #endif /* USDT2 */

  3301 JNI_END

  3304 // UTF Interface

  3306 #ifndef USDT2

  3307 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3308 #else /* USDT2 */

  3309 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3310                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3311 #endif /* USDT2 */

  3313 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3314   JNIWrapper("NewStringUTF");

  3315 #ifndef USDT2

  3316   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3317 #else /* USDT2 */

  3318   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3319                                  env, (char *) bytes);

  3320 #endif /* USDT2 */

  3321   jstring ret;

  3322   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3324   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3325   ret = (jstring) JNIHandles::make_local(env, result);

  3326   return ret;

  3327 JNI_END

  3330 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3331   JNIWrapper("GetStringUTFLength");

  3332 #ifndef USDT2

  3333   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3334 #else /* USDT2 */

  3335  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3336                                       env, string);

  3337 #endif /* USDT2 */

  3338   jsize ret = 0;

  3339   oop java_string = JNIHandles::resolve_non_null(string);

  3340   if (java_lang_String::value(java_string) != NULL) {

  3341     ret = java_lang_String::utf8_length(java_string);

  3342   }

  3343 #ifndef USDT2

  3344   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3345 #else /* USDT2 */

  3346   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3347                                         ret);

  3348 #endif /* USDT2 */

  3349   return ret;

  3350 JNI_END

  3353 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3354   JNIWrapper("GetStringUTFChars");

  3355 #ifndef USDT2

  3356   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3357 #else /* USDT2 */

  3358  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3359                                      env, string, (uintptr_t *) isCopy);

  3360 #endif /* USDT2 */

  3361   char* result = NULL;

  3362   oop java_string = JNIHandles::resolve_non_null(string);

  3363   if (java_lang_String::value(java_string) != NULL) {

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

  3365     /* JNI Specification states return NULL on OOM */

  3366     result = AllocateHeap(length + 1, mtInternal, 0, AllocFailStrategy::RETURN_NULL);

  3367     if (result != NULL) {

  3368       java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3369       if (isCopy != NULL) {

  3370         *isCopy = JNI_TRUE;

  3371       }

  3372     }

  3373   }

  3374 #ifndef USDT2

  3375   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3376 #else /* USDT2 */

  3377  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3378                                       result);

  3379 #endif /* USDT2 */

  3380   return result;

  3381 JNI_END

  3384 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3385   JNIWrapper("ReleaseStringUTFChars");

  3386 #ifndef USDT2

  3387   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3388 #else /* USDT2 */

  3389  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3390                                          env, str, (char *) chars);

  3391 #endif /* USDT2 */

  3392   if (chars != NULL) {

  3393     FreeHeap((char*) chars);

  3394   }

  3395 #ifndef USDT2

  3396   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3397 #else /* USDT2 */

  3398 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3399 );

  3400 #endif /* USDT2 */

  3401 JNI_END

  3404 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3405   JNIWrapper("GetArrayLength");

  3406 #ifndef USDT2

  3407   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3408 #else /* USDT2 */

  3409  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3410                                   env, array);

  3411 #endif /* USDT2 */

  3412   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3413   assert(a->is_array(), "must be array");

  3414   jsize ret = a->length();

  3415 #ifndef USDT2

  3416   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3417 #else /* USDT2 */

  3418  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3419                                    ret);

  3420 #endif /* USDT2 */

  3421   return ret;

  3422 JNI_END

  3425 //

  3426 // Object Array Operations

  3427 //

  3429 #ifndef USDT2

  3430 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3431 #else /* USDT2 */

  3432 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3433                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3434 #endif /* USDT2 */

  3436 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3437   JNIWrapper("NewObjectArray");

  3438 #ifndef USDT2

  3439   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3440 #else /* USDT2 */

  3441  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3442                                   env, length, elementClass, initialElement);

  3443 #endif /* USDT2 */

  3444   jobjectArray ret = NULL;

  3445   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3446   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3447   Klass* ako = ek()->array_klass(CHECK_NULL);

  3448   KlassHandle ak = KlassHandle(THREAD, ako);

  3449   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3450   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3451   oop initial_value = JNIHandles::resolve(initialElement);

  3452   if (initial_value != NULL) {  // array already initialized with NULL

  3453     for (int index = 0; index < length; index++) {

  3454       result->obj_at_put(index, initial_value);

  3455     }

  3456   }

  3457   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3458   return ret;

  3459 JNI_END

  3461 #ifndef USDT2

  3462 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3463 #else /* USDT2 */

  3464 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3465                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3466 #endif /* USDT2 */

  3468 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3469   JNIWrapper("GetObjectArrayElement");

  3470 #ifndef USDT2

  3471   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3472 #else /* USDT2 */

  3473  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3474                                          env, array, index);

  3475 #endif /* USDT2 */

  3476   jobject ret = NULL;

  3477   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3478   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3479   if (a->is_within_bounds(index)) {

  3480     ret = JNIHandles::make_local(env, a->obj_at(index));

  3481     return ret;

  3482   } else {

  3483     char buf[jintAsStringSize];

  3484     sprintf(buf, "%d", index);

  3485     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3486   }

  3487 JNI_END

  3489 #ifndef USDT2

  3490 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3491 #else /* USDT2 */

  3492 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3493                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3494 #endif /* USDT2 */

  3496 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3497   JNIWrapper("SetObjectArrayElement");

  3498 #ifndef USDT2

  3499   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3500 #else /* USDT2 */

  3501  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3502                                          env, array, index, value);

  3503 #endif /* USDT2 */

  3504   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3506   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3507   oop v = JNIHandles::resolve(value);

  3508   if (a->is_within_bounds(index)) {

  3509     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3510       a->obj_at_put(index, v);

  3511     } else {

  3512       THROW(vmSymbols::java_lang_ArrayStoreException());

  3513     }

  3514   } else {

  3515     char buf[jintAsStringSize];

  3516     sprintf(buf, "%d", index);

  3517     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3518   }

  3519 JNI_END

  3522 #ifndef USDT2

  3523 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3524 \

  3525   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3526 \

  3527 JNI_ENTRY(Return, \

  3528           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3529   JNIWrapper("New" XSTR(Result) "Array"); \

  3530   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3531   Return ret = NULL;\

  3532   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3533 \

  3534   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3535   ret = (Return) JNIHandles::make_local(env, obj); \

  3536   return ret;\

  3537 JNI_END

  3539 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3540 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3541 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3542 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3543 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3544 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3545 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3546 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3548 #else /* USDT2 */

  3550 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3551                               ,EntryProbe,ReturnProbe)  \

  3552 \

  3553   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3554                       , ReturnProbe); \

  3555 \

  3556 JNI_ENTRY(Return, \

  3557           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3558   JNIWrapper("New" XSTR(Result) "Array"); \

  3559   EntryProbe; \

  3560   Return ret = NULL;\

  3561   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3562 \

  3563   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3564   ret = (Return) JNIHandles::make_local(env, obj); \

  3565   return ret;\

  3566 JNI_END

  3568 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3569                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3570                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3571 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3572                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3573                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3574 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3575                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3576                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3577 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3578                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3579                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3580 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3581                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3582                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3583 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3584                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3585                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3586 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3587                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3588                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3589 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3590                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3591                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3592 #endif /* USDT2 */

  3594 // Return an address which will fault if the caller writes to it.

  3596 static char* get_bad_address() {

  3597   static char* bad_address = NULL;

  3598   if (bad_address == NULL) {

  3599     size_t size = os::vm_allocation_granularity();

  3600     bad_address = os::reserve_memory(size);

  3601     if (bad_address != NULL) {

  3602       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3603                          /*is_committed*/false);

  3604       MemTracker::record_virtual_memory_type((void*)bad_address, mtInternal);

  3605     }

  3606   }

  3607   return bad_address;

  3608 }

  3611 #ifndef USDT2

  3612 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3613 \

  3614 JNI_QUICK_ENTRY(ElementType*, \

  3615           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3616   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3617   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3618   /* allocate an chunk of memory in c land */ \

  3619   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3620   ElementType* result; \

  3621   int len = a->length(); \

  3622   if (len == 0) { \

  3623     /* Empty array: legal but useless, can't return NULL. \

  3624      * Return a pointer to something useless. \

  3625      * Avoid asserts in typeArrayOop. */ \

  3626     result = (ElementType*)get_bad_address(); \

  3627   } else { \

  3628     /* JNI Specification states return NULL on OOM */                    \

  3629     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3630     if (result != NULL) {                                                \

  3631       /* copy the array to the c chunk */                                \

  3632       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3633       if (isCopy) {                                                      \

  3634         *isCopy = JNI_TRUE;                                              \

  3635       }                                                                  \

  3636     }                                                                    \

  3637   } \

  3638   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3639   return result; \

  3640 JNI_END

  3642 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3643 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3644 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3645 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3646 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3647 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3648 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3649 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3651 #else /* USDT2 */

  3653 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3654                                       , EntryProbe, ReturnProbe) \

  3655 \

  3656 JNI_QUICK_ENTRY(ElementType*, \

  3657           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3658   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3659   EntryProbe; \

  3660   /* allocate an chunk of memory in c land */ \

  3661   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3662   ElementType* result; \

  3663   int len = a->length(); \

  3664   if (len == 0) { \

  3665     /* Empty array: legal but useless, can't return NULL. \

  3666      * Return a pointer to something useless. \

  3667      * Avoid asserts in typeArrayOop. */ \

  3668     result = (ElementType*)get_bad_address(); \

  3669   } else { \

  3670     /* JNI Specification states return NULL on OOM */                    \

  3671     result = NEW_C_HEAP_ARRAY_RETURN_NULL(ElementType, len, mtInternal); \

  3672     if (result != NULL) {                                                \

  3673       /* copy the array to the c chunk */                                \

  3674       memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len);      \

  3675       if (isCopy) {                                                      \

  3676         *isCopy = JNI_TRUE;                                              \

  3677       }                                                                  \

  3678     }                                                                    \

  3679   } \

  3680   ReturnProbe; \

  3681   return result; \

  3682 JNI_END

  3684 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3685                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3686                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3687 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3688                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3689                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3690 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3691                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3692                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3693 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3694                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3695                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3696 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3697                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3698                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3699 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3700                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3701                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3702 // Float and double probes don't return value because dtrace doesn't currently support it

  3703 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3704                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3705                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3706 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3707                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3708                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3709 #endif /* USDT2 */

  3711 #ifndef USDT2

  3712 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3713 \

  3714 JNI_QUICK_ENTRY(void, \

  3715           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3716                                              ElementType *buf, jint mode)) \

  3717   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3718   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3719   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3720   int len = a->length(); \

  3721   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3722     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3723       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3724     } \

  3725     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3726       FreeHeap(buf); \

  3727     } \

  3728   } \

  3729   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3730 JNI_END

  3732 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3733 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3734 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3735 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3736 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3737 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3738 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3739 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3741 #else /* USDT2 */

  3743 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3744                                           , EntryProbe, ReturnProbe);\

  3745 \

  3746 JNI_QUICK_ENTRY(void, \

  3747           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3748                                              ElementType *buf, jint mode)) \

  3749   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3750   EntryProbe; \

  3751   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3752   int len = a->length(); \

  3753   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3754     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3755       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3756     } \

  3757     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3758       FreeHeap(buf); \

  3759     } \

  3760   } \

  3761   ReturnProbe; \

  3762 JNI_END

  3764 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3765                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3766                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3767 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3768                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3769                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3770 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3771                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3772                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3773 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3774                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3775                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3776 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3777                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3778                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3779 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3780                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3781                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3782 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3783                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3784                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3785 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3786                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3787                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3788 #endif /* USDT2 */

  3790 #ifndef USDT2

  3791 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3792   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3793 \

  3794 JNI_ENTRY(void, \

  3795 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3796              jsize len, ElementType *buf)) \

  3797   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3798   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3799   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3800   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3801   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3802     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3803   } else { \

  3804     if (len > 0) { \

  3805       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3806       memcpy((u_char*) buf, \

  3807              (u_char*) src->Tag##_at_addr(start), \

  3808              len << sc);                          \

  3809     } \

  3810   } \

  3811 JNI_END

  3813 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3814 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3815 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3816 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3817 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3818 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3819 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3820 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3822 #else /* USDT2 */

  3824 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3825                                     , EntryProbe, ReturnProbe); \

  3826   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3827                            , ReturnProbe); \

  3828 \

  3829 JNI_ENTRY(void, \

  3830 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3831              jsize len, ElementType *buf)) \

  3832   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3833   EntryProbe; \

  3834   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3835   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3836   if (start < 0 || len < 0 || (start > src->length() - len)) { \

  3837     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3838   } else { \

  3839     if (len > 0) { \

  3840       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3841       memcpy((u_char*) buf, \

  3842              (u_char*) src->Tag##_at_addr(start), \

  3843              len << sc);                          \

  3844     } \

  3845   } \

  3846 JNI_END

  3848 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3849                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3850                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3851 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3852                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3853                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3854 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3855                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3856                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3857 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3858                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3859                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3860 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3861                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3862                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3863 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3864                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3865                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3866 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3867                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3868                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3869 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3870                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3871                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3872 #endif /* USDT2 */

  3874 #ifndef USDT2

  3875 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3876   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3877 \

  3878 JNI_ENTRY(void, \

  3879 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3880              jsize len, const ElementType *buf)) \

  3881   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3882   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3883   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3884   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3885   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3886     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3887   } else { \

  3888     if (len > 0) { \

  3889       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3890       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3891              (u_char*) buf, \

  3892              len << sc);    \

  3893     } \

  3894   } \

  3895 JNI_END

  3897 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3898 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3899 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3900 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3901 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3902 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3903 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3904 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3906 #else /* USDT2 */

  3908 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3909                                     , EntryProbe, ReturnProbe); \

  3910   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3911                            ,ReturnProbe);           \

  3912 \

  3913 JNI_ENTRY(void, \

  3914 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3915              jsize len, const ElementType *buf)) \

  3916   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3917   EntryProbe; \

  3918   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3919   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3920   if (start < 0 || len < 0 || (start > dst->length() - len)) { \

  3921     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3922   } else { \

  3923     if (len > 0) { \

  3924       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3925       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3926              (u_char*) buf, \

  3927              len << sc);    \

  3928     } \

  3929   } \

  3930 JNI_END

  3932 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3933                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3934                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3935 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3936                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3937                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3938 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3939                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3940                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3941 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3942                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3943                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3944 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3945                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3946                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3947 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3948                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3949                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3950 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3951                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3952                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3953 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3954                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3955                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3956 #endif /* USDT2 */

  3959 //

  3960 // Interception of natives

  3961 //

  3963 // The RegisterNatives call being attempted tried to register with a method that

  3964 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3965 // to see if the native method is now wrapped with the prefixes.  See the

  3966 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3967 static Method* find_prefixed_native(KlassHandle k,

  3968                                       Symbol* name, Symbol* signature, TRAPS) {

  3969 #if INCLUDE_JVMTI

  3970   ResourceMark rm(THREAD);

  3971   Method* method;

  3972   int name_len = name->utf8_length();

  3973   char* name_str = name->as_utf8();

  3974   int prefix_count;

  3975   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3976   for (int i = 0; i < prefix_count; i++) {

  3977     char* prefix = prefixes[i];

  3978     int prefix_len = (int)strlen(prefix);

  3980     // try adding this prefix to the method name and see if it matches another method name

  3981     int trial_len = name_len + prefix_len;

  3982     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3983     strcpy(trial_name_str, prefix);

  3984     strcat(trial_name_str, name_str);

  3985     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3986     if (trial_name == NULL) {

  3987       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3988     }

  3989     method = k()->lookup_method(trial_name, signature);

  3990     if (method == NULL) {

  3991       continue; // signature doesn't match, try the next prefix

  3992     }

  3993     if (method->is_native()) {

  3994       method->set_is_prefixed_native();

  3995       return method; // wahoo, we found a prefixed version of the method, return it

  3996     }

  3997     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3998     name_len = trial_len;

  3999     name_str = trial_name_str;

  4000   }

  4001 #endif // INCLUDE_JVMTI

  4002   return NULL; // not found

  4003 }

  4005 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  4006   Method* method = k()->lookup_method(name, signature);

  4007   if (method == NULL) {

  4008     ResourceMark rm;

  4009     stringStream st;

  4010     st.print("Method %s name or signature does not match",

  4011              Method::name_and_sig_as_C_string(k(), name, signature));

  4012     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4013   }

  4014   if (!method->is_native()) {

  4015     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  4016     method = find_prefixed_native(k, name, signature, THREAD);

  4017     if (method == NULL) {

  4018       ResourceMark rm;

  4019       stringStream st;

  4020       st.print("Method %s is not declared as native",

  4021                Method::name_and_sig_as_C_string(k(), name, signature));

  4022       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4023     }

  4024   }

  4026   if (entry != NULL) {

  4027     method->set_native_function(entry,

  4028       Method::native_bind_event_is_interesting);

  4029   } else {

  4030     method->clear_native_function();

  4031   }

  4032   if (PrintJNIResolving) {

  4033     ResourceMark rm(THREAD);

  4034     tty->print_cr("[Registering JNI native method %s.%s]",

  4035       method->method_holder()->external_name(),

  4036       method->name()->as_C_string());

  4037   }

  4038   return true;

  4039 }

  4041 #ifndef USDT2

  4042 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4043 #else /* USDT2 */

  4044 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4045                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4046 #endif /* USDT2 */

  4048 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4049                                     const JNINativeMethod *methods,

  4050                                     jint nMethods))

  4051   JNIWrapper("RegisterNatives");

  4052 #ifndef USDT2

  4053   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4054 #else /* USDT2 */

  4055   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4056                                     env, clazz, (void *) methods, nMethods);

  4057 #endif /* USDT2 */

  4058   jint ret = 0;

  4059   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4061   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4063   for (int index = 0; index < nMethods; index++) {

  4064     const char* meth_name = methods[index].name;

  4065     const char* meth_sig = methods[index].signature;

  4066     int meth_name_len = (int)strlen(meth_name);

  4068     // The class should have been loaded (we have an instance of the class

  4069     // passed in) so the method and signature should already be in the symbol

  4070     // table.  If they're not there, the method doesn't exist.

  4071     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4072     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4074     if (name == NULL || signature == NULL) {

  4075       ResourceMark rm;

  4076       stringStream st;

  4077       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4078       // Must return negative value on failure

  4079       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4080     }

  4082     bool res = register_native(h_k, name, signature,

  4083                                (address) methods[index].fnPtr, THREAD);

  4084     if (!res) {

  4085       ret = -1;

  4086       break;

  4087     }

  4088   }

  4089   return ret;

  4090 JNI_END

  4093 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4094   JNIWrapper("UnregisterNatives");

  4095 #ifndef USDT2

  4096   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4097 #else /* USDT2 */

  4098  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4099                                      env, clazz);

  4100 #endif /* USDT2 */

  4101   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4102   //%note jni_2

  4103   if (k->oop_is_instance()) {

  4104     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4105       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4106       if (m->is_native()) {

  4107         m->clear_native_function();

  4108         m->set_signature_handler(NULL);

  4109       }

  4110     }

  4111   }

  4112 #ifndef USDT2

  4113   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4114 #else /* USDT2 */

  4115  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4116                                       0);

  4117 #endif /* USDT2 */

  4118   return 0;

  4119 JNI_END

  4121 //

  4122 // Monitor functions

  4123 //

  4125 #ifndef USDT2

  4126 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4127 #else /* USDT2 */

  4128 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4129                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4130 #endif /* USDT2 */

  4132 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4133 #ifndef USDT2

  4134   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4135 #else /* USDT2 */

  4136  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4137                                 env, jobj);

  4138 #endif /* USDT2 */

  4139   jint ret = JNI_ERR;

  4140   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4142   // If the object is null, we can't do anything with it

  4143   if (jobj == NULL) {

  4144     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4145   }

  4147   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4148   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4149   ret = JNI_OK;

  4150   return ret;

  4151 JNI_END

  4153 #ifndef USDT2

  4154 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4155 #else /* USDT2 */

  4156 DT_RETURN_MARK_DECL(MonitorExit, jint

  4157                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4158 #endif /* USDT2 */

  4160 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4161 #ifndef USDT2

  4162   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4163 #else /* USDT2 */

  4164  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4165                                env, jobj);

  4166 #endif /* USDT2 */

  4167   jint ret = JNI_ERR;

  4168   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4170   // Don't do anything with a null object

  4171   if (jobj == NULL) {

  4172     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4173   }

  4175   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4176   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4178   ret = JNI_OK;

  4179   return ret;

  4180 JNI_END

  4182 //

  4183 // Extensions

  4184 //

  4186 #ifndef USDT2

  4187 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4188 #else /* USDT2 */

  4189 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4190                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4191 #endif /* USDT2 */

  4193 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4194   JNIWrapper("GetStringRegion");

  4195 #ifndef USDT2

  4196   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4197 #else /* USDT2 */

  4198  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4199                                    env, string, start, len, buf);

  4200 #endif /* USDT2 */

  4201   DT_VOID_RETURN_MARK(GetStringRegion);

  4202   oop s = JNIHandles::resolve_non_null(string);

  4203   int s_len = java_lang_String::length(s);

  4204   if (start < 0 || len < 0 || start > s_len - len) {

  4205     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4206   } else {

  4207     if (len > 0) {

  4208       int s_offset = java_lang_String::offset(s);

  4209       typeArrayOop s_value = java_lang_String::value(s);

  4210       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4211     }

  4212   }

  4213 JNI_END

  4215 #ifndef USDT2

  4216 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4217 #else /* USDT2 */

  4218 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4219                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4220 #endif /* USDT2 */

  4222 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4223   JNIWrapper("GetStringUTFRegion");

  4224 #ifndef USDT2

  4225   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4226 #else /* USDT2 */

  4227  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4228                                       env, string, start, len, buf);

  4229 #endif /* USDT2 */

  4230   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4231   oop s = JNIHandles::resolve_non_null(string);

  4232   int s_len = java_lang_String::length(s);

  4233   if (start < 0 || len < 0 || start > s_len - len) {

  4234     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4235   } else {

  4236     //%note jni_7

  4237     if (len > 0) {

  4238       ResourceMark rm(THREAD);

  4239       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4240       int utf_len = (int)strlen(utf_region);

  4241       memcpy(buf, utf_region, utf_len);

  4242       buf[utf_len] = 0;

  4243     } else {

  4244       // JDK null-terminates the buffer even in len is zero

  4245       if (buf != NULL) {

  4246         buf[0] = 0;

  4247       }

  4248     }

  4249   }

  4250 JNI_END

  4253 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4254   JNIWrapper("GetPrimitiveArrayCritical");

  4255 #ifndef USDT2

  4256   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4257 #else /* USDT2 */

  4258  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4259                                              env, array, (uintptr_t *) isCopy);

  4260 #endif /* USDT2 */

  4261   GC_locker::lock_critical(thread);

  4262   if (isCopy != NULL) {

  4263     *isCopy = JNI_FALSE;

  4264   }

  4265   oop a = JNIHandles::resolve_non_null(array);

  4266   assert(a->is_array(), "just checking");

  4267   BasicType type;

  4268   if (a->is_objArray()) {

  4269     type = T_OBJECT;

  4270   } else {

  4271     type = TypeArrayKlass::cast(a->klass())->element_type();

  4272   }

  4273   void* ret = arrayOop(a)->base(type);

  4274 #ifndef USDT2

  4275   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4276 #else /* USDT2 */

  4277  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4278                                               ret);

  4279 #endif /* USDT2 */

  4280   return ret;

  4281 JNI_END

  4284 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4285   JNIWrapper("ReleasePrimitiveArrayCritical");

  4286 #ifndef USDT2

  4287   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4288 #else /* USDT2 */

  4289   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4290                                                   env, array, carray, mode);

  4291 #endif /* USDT2 */

  4292   // The array, carray and mode arguments are ignored

  4293   GC_locker::unlock_critical(thread);

  4294 #ifndef USDT2

  4295   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4296 #else /* USDT2 */

  4297 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4298 );

  4299 #endif /* USDT2 */

  4300 JNI_END

  4303 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4304   JNIWrapper("GetStringCritical");

  4305 #ifndef USDT2

  4306   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4307 #else /* USDT2 */

  4308   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4309                                       env, string, (uintptr_t *) isCopy);

  4310 #endif /* USDT2 */

  4311   GC_locker::lock_critical(thread);

  4312   if (isCopy != NULL) {

  4313     *isCopy = JNI_FALSE;

  4314   }

  4315   oop s = JNIHandles::resolve_non_null(string);

  4316   int s_len = java_lang_String::length(s);

  4317   typeArrayOop s_value = java_lang_String::value(s);

  4318   int s_offset = java_lang_String::offset(s);

  4319   const jchar* ret;

  4320   if (s_len > 0) {

  4321     ret = s_value->char_at_addr(s_offset);

  4322   } else {

  4323     ret = (jchar*) s_value->base(T_CHAR);

  4324   }

  4325 #ifndef USDT2

  4326   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4327 #else /* USDT2 */

  4328  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4329                                       (uint16_t *) ret);

  4330 #endif /* USDT2 */

  4331   return ret;

  4332 JNI_END

  4335 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4336   JNIWrapper("ReleaseStringCritical");

  4337 #ifndef USDT2

  4338   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4339 #else /* USDT2 */

  4340   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4341                                           env, str, (uint16_t *) chars);

  4342 #endif /* USDT2 */

  4343   // The str and chars arguments are ignored

  4344   GC_locker::unlock_critical(thread);

  4345 #ifndef USDT2

  4346   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4347 #else /* USDT2 */

  4348 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4349 );

  4350 #endif /* USDT2 */

  4351 JNI_END

  4354 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4355   JNIWrapper("jni_NewWeakGlobalRef");

  4356 #ifndef USDT2

  4357   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4358 #else /* USDT2 */

  4359  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4360                                     env, ref);

  4361 #endif /* USDT2 */

  4362   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4363   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4364 #ifndef USDT2

  4365   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4366 #else /* USDT2 */

  4367  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4368                                      ret);

  4369 #endif /* USDT2 */

  4370   return ret;

  4371 JNI_END

  4373 // Must be JNI_ENTRY (with HandleMark)

  4374 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4375   JNIWrapper("jni_DeleteWeakGlobalRef");

  4376 #ifndef USDT2

  4377   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4378 #else /* USDT2 */

  4379   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4380                                         env, ref);

  4381 #endif /* USDT2 */

  4382   JNIHandles::destroy_weak_global(ref);

  4383 #ifndef USDT2

  4384   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4385 #else /* USDT2 */

  4386   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4387                                          );

  4388 #endif /* USDT2 */

  4389 JNI_END

  4392 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4393   JNIWrapper("jni_ExceptionCheck");

  4394 #ifndef USDT2

  4395   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4396 #else /* USDT2 */

  4397  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4398                                   env);

  4399 #endif /* USDT2 */

  4400   jni_check_async_exceptions(thread);

  4401   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4402 #ifndef USDT2

  4403   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4404 #else /* USDT2 */

  4405  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4406                                    ret);

  4407 #endif /* USDT2 */

  4408   return ret;

  4409 JNI_END

  4412 // Initialization state for three routines below relating to

  4413 // java.nio.DirectBuffers

  4414 static          jint directBufferSupportInitializeStarted = 0;

  4415 static volatile jint directBufferSupportInitializeEnded   = 0;

  4416 static volatile jint directBufferSupportInitializeFailed  = 0;

  4417 static jclass    bufferClass                 = NULL;

  4418 static jclass    directBufferClass           = NULL;

  4419 static jclass    directByteBufferClass       = NULL;

  4420 static jmethodID directByteBufferConstructor = NULL;

  4421 static jfieldID  directBufferAddressField    = NULL;

  4422 static jfieldID  bufferCapacityField         = NULL;

  4424 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4425   Handle loader;            // null (bootstrap) loader

  4426   Handle protection_domain; // null protection domain

  4428   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4429   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4431   if (TraceClassResolution && result != NULL) {

  4432     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4433   }

  4434   return result;

  4435 }

  4437 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4438 // circumvent any security checks that would be done by jni_FindClass.

  4439 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4440 {

  4441   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4442   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4443   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4444   return true;

  4445 }

  4446 JNI_END

  4449 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4450   if (directBufferSupportInitializeFailed) {

  4451     return false;

  4452   }

  4454   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4455     if (!lookupDirectBufferClasses(env)) {

  4456       directBufferSupportInitializeFailed = 1;

  4457       return false;

  4458     }

  4460     // Make global references for these

  4461     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4462     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4463     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4465     // Get needed field and method IDs

  4466     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4467     if (env->ExceptionCheck()) {

  4468       env->ExceptionClear();

  4469       directBufferSupportInitializeFailed = 1;

  4470       return false;

  4471     }

  4472     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4473     if (env->ExceptionCheck()) {

  4474       env->ExceptionClear();

  4475       directBufferSupportInitializeFailed = 1;

  4476       return false;

  4477     }

  4478     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4479     if (env->ExceptionCheck()) {

  4480       env->ExceptionClear();

  4481       directBufferSupportInitializeFailed = 1;

  4482       return false;

  4483     }

  4485     if ((directByteBufferConstructor == NULL) ||

  4486         (directBufferAddressField    == NULL) ||

  4487         (bufferCapacityField         == NULL)) {

  4488       directBufferSupportInitializeFailed = 1;

  4489       return false;

  4490     }

  4492     directBufferSupportInitializeEnded = 1;

  4493   } else {

  4494     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4495       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4496       // os::sleep which requires the VM state transition. On other platforms, it

  4497       // is not necessary. The following call to change the VM state is purposely

  4498       // put inside the loop to avoid potential deadlock when multiple threads

  4499       // try to call this method. See 6791815 for more details.

  4500       ThreadInVMfromNative tivn(thread);

  4501       os::yield_all();

  4502     }

  4503   }

  4505   return !directBufferSupportInitializeFailed;

  4506 }

  4508 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4509 {

  4510   // thread_from_jni_environment() will block if VM is gone.

  4511   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4513   JNIWrapper("jni_NewDirectByteBuffer");

  4514 #ifndef USDT2

  4515   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4516 #else /* USDT2 */

  4517  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4518                                        env, address, capacity);

  4519 #endif /* USDT2 */

  4521   if (!directBufferSupportInitializeEnded) {

  4522     if (!initializeDirectBufferSupport(env, thread)) {

  4523 #ifndef USDT2

  4524       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4525 #else /* USDT2 */

  4526       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4527                                              NULL);

  4528 #endif /* USDT2 */

  4529       return NULL;

  4530     }

  4531   }

  4533   // Being paranoid about accidental sign extension on address

  4534   jlong addr = (jlong) ((uintptr_t) address);

  4535   // NOTE that package-private DirectByteBuffer constructor currently

  4536   // takes int capacity

  4537   jint  cap  = (jint)  capacity;

  4538   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4539 #ifndef USDT2

  4540   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4541 #else /* USDT2 */

  4542   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4543                                          ret);

  4544 #endif /* USDT2 */

  4545   return ret;

  4546 }

  4548 #ifndef USDT2

  4549 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4550 #else /* USDT2 */

  4551 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4552                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4553 #endif /* USDT2 */

  4555 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4556 {

  4557   // thread_from_jni_environment() will block if VM is gone.

  4558   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4560   JNIWrapper("jni_GetDirectBufferAddress");

  4561 #ifndef USDT2

  4562   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4563 #else /* USDT2 */

  4564   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4565                                            env, buf);

  4566 #endif /* USDT2 */

  4567   void* ret = NULL;

  4568   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4570   if (!directBufferSupportInitializeEnded) {

  4571     if (!initializeDirectBufferSupport(env, thread)) {

  4572       return 0;

  4573     }

  4574   }

  4576   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4577     return 0;

  4578   }

  4580   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4581   return ret;

  4582 }

  4584 #ifndef USDT2

  4585 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4586 #else /* USDT2 */

  4587 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4588                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4589 #endif /* USDT2 */

  4591 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4592 {

  4593   // thread_from_jni_environment() will block if VM is gone.

  4594   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4596   JNIWrapper("jni_GetDirectBufferCapacity");

  4597 #ifndef USDT2

  4598   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4599 #else /* USDT2 */

  4600   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4601                                             env, buf);

  4602 #endif /* USDT2 */

  4603   jlong ret = -1;

  4604   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4606   if (!directBufferSupportInitializeEnded) {

  4607     if (!initializeDirectBufferSupport(env, thread)) {

  4608       ret = 0;

  4609       return ret;

  4610     }

  4611   }

  4613   if (buf == NULL) {

  4614     return -1;

  4615   }

  4617   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4618     return -1;

  4619   }

  4621   // NOTE that capacity is currently an int in the implementation

  4622   ret = env->GetIntField(buf, bufferCapacityField);

  4623   return ret;

  4624 }

  4627 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4628   JNIWrapper("GetVersion");

  4629 #ifndef USDT2

  4630   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4631 #else /* USDT2 */

  4632   HOTSPOT_JNI_GETVERSION_ENTRY(

  4633                                env);

  4634 #endif /* USDT2 */

  4635 #ifndef USDT2

  4636   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4637 #else /* USDT2 */

  4638   HOTSPOT_JNI_GETVERSION_RETURN(

  4639                                 CurrentVersion);

  4640 #endif /* USDT2 */

  4641   return CurrentVersion;

  4642 JNI_END

  4644 extern struct JavaVM_ main_vm;

  4646 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4647   JNIWrapper("jni_GetJavaVM");

  4648 #ifndef USDT2

  4649   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4650 #else /* USDT2 */

  4651   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4652                               env, (void **) vm);

  4653 #endif /* USDT2 */

  4654   *vm  = (JavaVM *)(&main_vm);

  4655 #ifndef USDT2

  4656   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4657 #else /* USDT2 */

  4658   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4659                                JNI_OK);

  4660 #endif /* USDT2 */

  4661   return JNI_OK;

  4662 JNI_END

  4664 // Structure containing all jni functions

  4665 struct JNINativeInterface_ jni_NativeInterface = {

  4666     NULL,

  4667     NULL,

  4668     NULL,

  4670     NULL,

  4672     jni_GetVersion,

  4674     jni_DefineClass,

  4675     jni_FindClass,

  4677     jni_FromReflectedMethod,

  4678     jni_FromReflectedField,

  4680     jni_ToReflectedMethod,

  4682     jni_GetSuperclass,

  4683     jni_IsAssignableFrom,

  4685     jni_ToReflectedField,

  4687     jni_Throw,

  4688     jni_ThrowNew,

  4689     jni_ExceptionOccurred,

  4690     jni_ExceptionDescribe,

  4691     jni_ExceptionClear,

  4692     jni_FatalError,

  4694     jni_PushLocalFrame,

  4695     jni_PopLocalFrame,

  4697     jni_NewGlobalRef,

  4698     jni_DeleteGlobalRef,

  4699     jni_DeleteLocalRef,

  4700     jni_IsSameObject,

  4702     jni_NewLocalRef,

  4703     jni_EnsureLocalCapacity,

  4705     jni_AllocObject,

  4706     jni_NewObject,

  4707     jni_NewObjectV,

  4708     jni_NewObjectA,

  4710     jni_GetObjectClass,

  4711     jni_IsInstanceOf,

  4713     jni_GetMethodID,

  4715     jni_CallObjectMethod,

  4716     jni_CallObjectMethodV,

  4717     jni_CallObjectMethodA,

  4718     jni_CallBooleanMethod,

  4719     jni_CallBooleanMethodV,

  4720     jni_CallBooleanMethodA,

  4721     jni_CallByteMethod,

  4722     jni_CallByteMethodV,

  4723     jni_CallByteMethodA,

  4724     jni_CallCharMethod,

  4725     jni_CallCharMethodV,

  4726     jni_CallCharMethodA,

  4727     jni_CallShortMethod,

  4728     jni_CallShortMethodV,

  4729     jni_CallShortMethodA,

  4730     jni_CallIntMethod,

  4731     jni_CallIntMethodV,

  4732     jni_CallIntMethodA,

  4733     jni_CallLongMethod,

  4734     jni_CallLongMethodV,

  4735     jni_CallLongMethodA,

  4736     jni_CallFloatMethod,

  4737     jni_CallFloatMethodV,

  4738     jni_CallFloatMethodA,

  4739     jni_CallDoubleMethod,

  4740     jni_CallDoubleMethodV,

  4741     jni_CallDoubleMethodA,

  4742     jni_CallVoidMethod,

  4743     jni_CallVoidMethodV,

  4744     jni_CallVoidMethodA,

  4746     jni_CallNonvirtualObjectMethod,

  4747     jni_CallNonvirtualObjectMethodV,

  4748     jni_CallNonvirtualObjectMethodA,

  4749     jni_CallNonvirtualBooleanMethod,

  4750     jni_CallNonvirtualBooleanMethodV,

  4751     jni_CallNonvirtualBooleanMethodA,

  4752     jni_CallNonvirtualByteMethod,

  4753     jni_CallNonvirtualByteMethodV,

  4754     jni_CallNonvirtualByteMethodA,

  4755     jni_CallNonvirtualCharMethod,

  4756     jni_CallNonvirtualCharMethodV,

  4757     jni_CallNonvirtualCharMethodA,

  4758     jni_CallNonvirtualShortMethod,

  4759     jni_CallNonvirtualShortMethodV,

  4760     jni_CallNonvirtualShortMethodA,

  4761     jni_CallNonvirtualIntMethod,

  4762     jni_CallNonvirtualIntMethodV,

  4763     jni_CallNonvirtualIntMethodA,

  4764     jni_CallNonvirtualLongMethod,

  4765     jni_CallNonvirtualLongMethodV,

  4766     jni_CallNonvirtualLongMethodA,

  4767     jni_CallNonvirtualFloatMethod,

  4768     jni_CallNonvirtualFloatMethodV,

  4769     jni_CallNonvirtualFloatMethodA,

  4770     jni_CallNonvirtualDoubleMethod,

  4771     jni_CallNonvirtualDoubleMethodV,

  4772     jni_CallNonvirtualDoubleMethodA,

  4773     jni_CallNonvirtualVoidMethod,

  4774     jni_CallNonvirtualVoidMethodV,

  4775     jni_CallNonvirtualVoidMethodA,

  4777     jni_GetFieldID,

  4779     jni_GetObjectField,

  4780     jni_GetBooleanField,

  4781     jni_GetByteField,

  4782     jni_GetCharField,

  4783     jni_GetShortField,

  4784     jni_GetIntField,

  4785     jni_GetLongField,

  4786     jni_GetFloatField,

  4787     jni_GetDoubleField,

  4789     jni_SetObjectField,

  4790     jni_SetBooleanField,

  4791     jni_SetByteField,

  4792     jni_SetCharField,

  4793     jni_SetShortField,

  4794     jni_SetIntField,

  4795     jni_SetLongField,

  4796     jni_SetFloatField,

  4797     jni_SetDoubleField,

  4799     jni_GetStaticMethodID,

  4801     jni_CallStaticObjectMethod,

  4802     jni_CallStaticObjectMethodV,

  4803     jni_CallStaticObjectMethodA,

  4804     jni_CallStaticBooleanMethod,

  4805     jni_CallStaticBooleanMethodV,

  4806     jni_CallStaticBooleanMethodA,

  4807     jni_CallStaticByteMethod,

  4808     jni_CallStaticByteMethodV,

  4809     jni_CallStaticByteMethodA,

  4810     jni_CallStaticCharMethod,

  4811     jni_CallStaticCharMethodV,

  4812     jni_CallStaticCharMethodA,

  4813     jni_CallStaticShortMethod,

  4814     jni_CallStaticShortMethodV,

  4815     jni_CallStaticShortMethodA,

  4816     jni_CallStaticIntMethod,

  4817     jni_CallStaticIntMethodV,

  4818     jni_CallStaticIntMethodA,

  4819     jni_CallStaticLongMethod,

  4820     jni_CallStaticLongMethodV,

  4821     jni_CallStaticLongMethodA,

  4822     jni_CallStaticFloatMethod,

  4823     jni_CallStaticFloatMethodV,

  4824     jni_CallStaticFloatMethodA,

  4825     jni_CallStaticDoubleMethod,

  4826     jni_CallStaticDoubleMethodV,

  4827     jni_CallStaticDoubleMethodA,

  4828     jni_CallStaticVoidMethod,

  4829     jni_CallStaticVoidMethodV,

  4830     jni_CallStaticVoidMethodA,

  4832     jni_GetStaticFieldID,

  4834     jni_GetStaticObjectField,

  4835     jni_GetStaticBooleanField,

  4836     jni_GetStaticByteField,

  4837     jni_GetStaticCharField,

  4838     jni_GetStaticShortField,

  4839     jni_GetStaticIntField,

  4840     jni_GetStaticLongField,

  4841     jni_GetStaticFloatField,

  4842     jni_GetStaticDoubleField,

  4844     jni_SetStaticObjectField,

  4845     jni_SetStaticBooleanField,

  4846     jni_SetStaticByteField,

  4847     jni_SetStaticCharField,

  4848     jni_SetStaticShortField,

  4849     jni_SetStaticIntField,

  4850     jni_SetStaticLongField,

  4851     jni_SetStaticFloatField,

  4852     jni_SetStaticDoubleField,

  4854     jni_NewString,

  4855     jni_GetStringLength,

  4856     jni_GetStringChars,

  4857     jni_ReleaseStringChars,

  4859     jni_NewStringUTF,

  4860     jni_GetStringUTFLength,

  4861     jni_GetStringUTFChars,

  4862     jni_ReleaseStringUTFChars,

  4864     jni_GetArrayLength,

  4866     jni_NewObjectArray,

  4867     jni_GetObjectArrayElement,

  4868     jni_SetObjectArrayElement,

  4870     jni_NewBooleanArray,

  4871     jni_NewByteArray,

  4872     jni_NewCharArray,

  4873     jni_NewShortArray,

  4874     jni_NewIntArray,

  4875     jni_NewLongArray,

  4876     jni_NewFloatArray,

  4877     jni_NewDoubleArray,

  4879     jni_GetBooleanArrayElements,

  4880     jni_GetByteArrayElements,

  4881     jni_GetCharArrayElements,

  4882     jni_GetShortArrayElements,

  4883     jni_GetIntArrayElements,

  4884     jni_GetLongArrayElements,

  4885     jni_GetFloatArrayElements,

  4886     jni_GetDoubleArrayElements,

  4888     jni_ReleaseBooleanArrayElements,

  4889     jni_ReleaseByteArrayElements,

  4890     jni_ReleaseCharArrayElements,

  4891     jni_ReleaseShortArrayElements,

  4892     jni_ReleaseIntArrayElements,

  4893     jni_ReleaseLongArrayElements,

  4894     jni_ReleaseFloatArrayElements,

  4895     jni_ReleaseDoubleArrayElements,

  4897     jni_GetBooleanArrayRegion,

  4898     jni_GetByteArrayRegion,

  4899     jni_GetCharArrayRegion,

  4900     jni_GetShortArrayRegion,

  4901     jni_GetIntArrayRegion,

  4902     jni_GetLongArrayRegion,

  4903     jni_GetFloatArrayRegion,

  4904     jni_GetDoubleArrayRegion,

  4906     jni_SetBooleanArrayRegion,

  4907     jni_SetByteArrayRegion,

  4908     jni_SetCharArrayRegion,

  4909     jni_SetShortArrayRegion,

  4910     jni_SetIntArrayRegion,

  4911     jni_SetLongArrayRegion,

  4912     jni_SetFloatArrayRegion,

  4913     jni_SetDoubleArrayRegion,

  4915     jni_RegisterNatives,

  4916     jni_UnregisterNatives,

  4918     jni_MonitorEnter,

  4919     jni_MonitorExit,

  4921     jni_GetJavaVM,

  4923     jni_GetStringRegion,

  4924     jni_GetStringUTFRegion,

  4926     jni_GetPrimitiveArrayCritical,

  4927     jni_ReleasePrimitiveArrayCritical,

  4929     jni_GetStringCritical,

  4930     jni_ReleaseStringCritical,

  4932     jni_NewWeakGlobalRef,

  4933     jni_DeleteWeakGlobalRef,

  4935     jni_ExceptionCheck,

  4937     jni_NewDirectByteBuffer,

  4938     jni_GetDirectBufferAddress,

  4939     jni_GetDirectBufferCapacity,

  4941     // New 1_6 features

  4943     jni_GetObjectRefType

  4944 };

  4947 // For jvmti use to modify jni function table.

  4948 // Java threads in native contiues to run until it is transitioned

  4949 // to VM at safepoint. Before the transition or before it is blocked

  4950 // for safepoint it may access jni function table. VM could crash if

  4951 // any java thread access the jni function table in the middle of memcpy.

  4952 // To avoid this each function pointers are copied automically.

  4953 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4954   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4955   intptr_t *a = (intptr_t *) jni_functions();

  4956   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4957   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4958     Atomic::store_ptr(*b++, a++);

  4959   }

  4960 }

  4962 void quicken_jni_functions() {

  4963   // Replace Get<Primitive>Field with fast versions

  4964   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4965       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4966 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4967       // windows x86 currently needs SEH wrapper and the gain of the fast

  4968       // versions currently isn't certain for server vm on uniprocessor.

  4969       && os::is_MP()

  4970 #endif

  4971   ) {

  4972     address func;

  4973     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4974     if (func != (address)-1) {

  4975       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4976     }

  4977     func = JNI_FastGetField::generate_fast_get_byte_field();

  4978     if (func != (address)-1) {

  4979       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4980     }

  4981     func = JNI_FastGetField::generate_fast_get_char_field();

  4982     if (func != (address)-1) {

  4983       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4984     }

  4985     func = JNI_FastGetField::generate_fast_get_short_field();

  4986     if (func != (address)-1) {

  4987       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4988     }

  4989     func = JNI_FastGetField::generate_fast_get_int_field();

  4990     if (func != (address)-1) {

  4991       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4992     }

  4993     func = JNI_FastGetField::generate_fast_get_long_field();

  4994     if (func != (address)-1) {

  4995       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4996     }

  4997     func = JNI_FastGetField::generate_fast_get_float_field();

  4998     if (func != (address)-1) {

  4999       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  5000     }

  5001     func = JNI_FastGetField::generate_fast_get_double_field();

  5002     if (func != (address)-1) {

  5003       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  5004     }

  5005   }

  5006 }

  5008 // Returns the function structure

  5009 struct JNINativeInterface_* jni_functions() {

  5010 #if INCLUDE_JNI_CHECK

  5011   if (CheckJNICalls) return jni_functions_check();

  5012 #endif // INCLUDE_JNI_CHECK

  5013   return &jni_NativeInterface;

  5014 }

  5016 // Returns the function structure

  5017 struct JNINativeInterface_* jni_functions_nocheck() {

  5018   return &jni_NativeInterface;

  5019 }

  5022 // Invocation API

  5025 // Forward declaration

  5026 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  5028 // Global invocation API vars

  5029 volatile jint vm_created = 0;

  5030 // Indicate whether it is safe to recreate VM

  5031 volatile jint safe_to_recreate_vm = 1;

  5032 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5035 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5036 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5038 #ifndef USDT2

  5039 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5040 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5041 #else /* USDT2 */

  5042 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5043                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5044 #endif /* USDT2 */

  5046 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5047 #ifndef USDT2

  5048   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5049 #else /* USDT2 */

  5050   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5051                                              args_);

  5052 #endif /* USDT2 */

  5053   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5054   jint ret = JNI_ERR;

  5055   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5057   if (Threads::is_supported_jni_version(args->version)) {

  5058     ret = JNI_OK;

  5059   }

  5060   // 1.1 style no longer supported in hotspot.

  5061   // According the JNI spec, we should update args->version on return.

  5062   // We also use the structure to communicate with launcher about default

  5063   // stack size.

  5064   if (args->version == JNI_VERSION_1_1) {

  5065     args->version = JNI_VERSION_1_2;

  5066     // javaStackSize is int in arguments structure

  5067     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5068     args->javaStackSize = (jint)(ThreadStackSize * K);

  5069   }

  5070   return ret;

  5071 }

  5073 #ifndef PRODUCT

  5075 #include "gc_implementation/shared/gcTimer.hpp"

  5076 #include "gc_interface/collectedHeap.hpp"

  5077 #if INCLUDE_ALL_GCS

  5078 #include "gc_implementation/g1/heapRegionRemSet.hpp"

  5079 #endif

  5080 #include "memory/guardedMemory.hpp"

  5081 #include "utilities/quickSort.hpp"

  5082 #include "utilities/ostream.hpp"

  5083 #if INCLUDE_VM_STRUCTS

  5084 #include "runtime/vmStructs.hpp"

  5085 #endif

  5087 #define run_unit_test(unit_test_function_call)              \

  5088   tty->print_cr("Running test: " #unit_test_function_call); \

  5089   unit_test_function_call

  5091 // Forward declaration

  5092 void TestOS_test();

  5093 void TestReservedSpace_test();

  5094 void TestReserveMemorySpecial_test();

  5095 void TestVirtualSpace_test();

  5096 void TestMetaspaceAux_test();

  5097 void SpaceManager_test_adjust_initial_chunk_size();

  5098 void TestMetachunk_test();

  5099 void TestVirtualSpaceNode_test();

  5100 void TestNewSize_test();

  5101 void TestKlass_test();

  5102 void Test_linked_list();

  5103 void TestChunkedList_test();

  5104 #if INCLUDE_ALL_GCS

  5105 void TestOldFreeSpaceCalculation_test();

  5106 void TestG1BiasedArray_test();

  5107 void TestBufferingOopClosure_test();

  5108 void TestCodeCacheRemSet_test();

  5109 void FreeRegionList_test();

  5110 void ChunkManager_test_list_index();

  5111 #endif

  5113 void execute_internal_vm_tests() {

  5114   if (ExecuteInternalVMTests) {

  5115     tty->print_cr("Running internal VM tests");

  5116     run_unit_test(TestOS_test());

  5117     run_unit_test(TestReservedSpace_test());

  5118     run_unit_test(TestReserveMemorySpecial_test());

  5119     run_unit_test(TestVirtualSpace_test());

  5120     run_unit_test(TestMetaspaceAux_test());

  5121     run_unit_test(TestMetachunk_test());

  5122     run_unit_test(TestVirtualSpaceNode_test());

  5123     run_unit_test(GlobalDefinitions::test_globals());

  5124     run_unit_test(GCTimerAllTest::all());

  5125     run_unit_test(arrayOopDesc::test_max_array_length());

  5126     run_unit_test(CollectedHeap::test_is_in());

  5127     run_unit_test(QuickSort::test_quick_sort());

  5128     run_unit_test(GuardedMemory::test_guarded_memory());

  5129     run_unit_test(AltHashing::test_alt_hash());

  5130     run_unit_test(test_loggc_filename());

  5131     run_unit_test(test_snprintf());

  5132     run_unit_test(TestNewSize_test());

  5133     run_unit_test(TestKlass_test());

  5134     run_unit_test(Test_linked_list());

  5135     run_unit_test(TestChunkedList_test());

  5136     run_unit_test(ObjectMonitor::sanity_checks());

  5137 #if INCLUDE_VM_STRUCTS

  5138     run_unit_test(VMStructs::test());

  5139 #endif

  5140 #if INCLUDE_ALL_GCS

  5141     run_unit_test(TestOldFreeSpaceCalculation_test());

  5142     run_unit_test(TestG1BiasedArray_test());

  5143     run_unit_test(HeapRegionRemSet::test_prt());

  5144     run_unit_test(SpaceManager_test_adjust_initial_chunk_size());

  5145     run_unit_test(ChunkManager_test_list_index());

  5146     run_unit_test(TestBufferingOopClosure_test());

  5147     run_unit_test(TestCodeCacheRemSet_test());

  5148     if (UseG1GC) {

  5149       run_unit_test(FreeRegionList_test());

  5150     }

  5151 #endif

  5152     tty->print_cr("All internal VM tests passed");

  5153   }

  5154 }

  5156 #undef run_unit_test

  5158 #endif

  5160 #ifndef USDT2

  5161 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5162 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5163 #else /* USDT2 */

  5164 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5165                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5166 #endif /* USDT2 */

  5168 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5169 #ifndef USDT2

  5170   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5171 #else /* USDT2 */

  5172   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5173                                  (void **) vm, penv, args);

  5174 #endif /* USDT2 */

  5176   jint result = JNI_ERR;

  5177   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5179   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5180   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5181   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5182   // on all architectures.  So we check it works before relying on it.

  5183 #if defined(ZERO) && defined(ASSERT)

  5184   {

  5185     jint a = 0xcafebabe;

  5186     jint b = Atomic::xchg(0xdeadbeef, &a);

  5187     void *c = &a;

  5188     void *d = Atomic::xchg_ptr(&b, &c);

  5189     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5190     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5191   }

  5192 #endif // ZERO && ASSERT

  5194   // At the moment it's only possible to have one Java VM,

  5195   // since some of the runtime state is in global variables.

  5197   // We cannot use our mutex locks here, since they only work on

  5198   // Threads. We do an atomic compare and exchange to ensure only

  5199   // one thread can call this method at a time

  5201   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5202   // the add/dec implementations are dependent on whether we are running

  5203   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5204   // function used to determine this will always return false. Atomic::xchg

  5205   // does not have this problem.

  5206   if (Atomic::xchg(1, &vm_created) == 1) {

  5207     return JNI_EEXIST;   // already created, or create attempt in progress

  5208   }

  5209   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5210     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5211   }

  5213   assert(vm_created == 1, "vm_created is true during the creation");

  5215   /**

  5216    * Certain errors during initialization are recoverable and do not

  5217    * prevent this method from being called again at a later time

  5218    * (perhaps with different arguments).  However, at a certain

  5219    * point during initialization if an error occurs we cannot allow

  5220    * this function to be called again (or it will crash).  In those

  5221    * situations, the 'canTryAgain' flag is set to false, which atomically

  5222    * sets safe_to_recreate_vm to 1, such that any new call to

  5223    * JNI_CreateJavaVM will immediately fail using the above logic.

  5224    */

  5225   bool can_try_again = true;

  5227   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5228   if (result == JNI_OK) {

  5229     JavaThread *thread = JavaThread::current();

  5230     /* thread is thread_in_vm here */

  5231     *vm = (JavaVM *)(&main_vm);

  5232     *(JNIEnv**)penv = thread->jni_environment();

  5234     // Tracks the time application was running before GC

  5235     RuntimeService::record_application_start();

  5237     // Notify JVMTI

  5238     if (JvmtiExport::should_post_thread_life()) {

  5239        JvmtiExport::post_thread_start(thread);

  5240     }

  5242     EventThreadStart event;

  5243     if (event.should_commit()) {

  5244       event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5245       event.commit();

  5246     }

  5248 #ifndef PRODUCT

  5249   #ifndef CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED

  5250     #define CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(f) f()

  5251   #endif

  5253     // Check if we should compile all classes on bootclasspath

  5254     if (CompileTheWorld) ClassLoader::compile_the_world();

  5255     if (ReplayCompiles) ciReplay::replay(thread);

  5257     // Some platforms (like Win*) need a wrapper around these test

  5258     // functions in order to properly handle error conditions.

  5259     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(test_error_handler);

  5260     CALL_TEST_FUNC_WITH_WRAPPER_IF_NEEDED(execute_internal_vm_tests);

  5261 #endif

  5263     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5264     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5265   } else {

  5266     if (can_try_again) {

  5267       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5268       safe_to_recreate_vm = 1;

  5269     }

  5271     // Creation failed. We must reset vm_created

  5272     *vm = 0;

  5273     *(JNIEnv**)penv = 0;

  5274     // reset vm_created last to avoid race condition. Use OrderAccess to

  5275     // control both compiler and architectural-based reordering.

  5276     OrderAccess::release_store(&vm_created, 0);

  5277   }

  5279   return result;

  5280 }

  5282 #ifndef USDT2

  5283 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5284   JavaVM**, jsize, jsize*);

  5285 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5286 #endif /* !USDT2 */

  5288 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5289   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5290   // JNIWrapper("GetCreatedJavaVMs");

  5291 #ifndef USDT2

  5292   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5293     vm_buf, bufLen, numVMs);

  5294 #else /* USDT2 */

  5295   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5296                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5297 #endif /* USDT2 */

  5298   if (vm_created) {

  5299     if (numVMs != NULL) *numVMs = 1;

  5300     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5301   } else {

  5302     if (numVMs != NULL) *numVMs = 0;

  5303   }

  5304 #ifndef USDT2

  5305   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5306 #else /* USDT2 */

  5307   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5308                                     JNI_OK);

  5309 #endif /* USDT2 */

  5310   return JNI_OK;

  5311 }

  5313 extern "C" {

  5315 #ifndef USDT2

  5316 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5317 #else /* USDT2 */

  5318 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5319                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5320 #endif /* USDT2 */

  5322 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5323 #ifndef USDT2

  5324   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5325 #else /* USDT2 */

  5326   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5327                                   vm);

  5328 #endif /* USDT2 */

  5329   jint res = JNI_ERR;

  5330   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5332   if (!vm_created) {

  5333     res = JNI_ERR;

  5334     return res;

  5335   }

  5337   JNIWrapper("DestroyJavaVM");

  5338   JNIEnv *env;

  5339   JavaVMAttachArgs destroyargs;

  5340   destroyargs.version = CurrentVersion;

  5341   destroyargs.name = (char *)"DestroyJavaVM";

  5342   destroyargs.group = NULL;

  5343   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5344   if (res != JNI_OK) {

  5345     return res;

  5346   }

  5348   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5349   JavaThread* thread = JavaThread::current();

  5350   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5351   if (Threads::destroy_vm()) {

  5352     // Should not change thread state, VM is gone

  5353     vm_created = false;

  5354     res = JNI_OK;

  5355     return res;

  5356   } else {

  5357     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5358     res = JNI_ERR;

  5359     return res;

  5360   }

  5361 }

  5364 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5365   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5367   // Check below commented out from JDK1.2fcs as well

  5368   /*

  5369   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5370     return JNI_EVERSION;

  5371   }

  5372   */

  5374   Thread* t = ThreadLocalStorage::get_thread_slow();

  5375   if (t != NULL) {

  5376     // If the thread has been attached this operation is a no-op

  5377     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5378     return JNI_OK;

  5379   }

  5381   // Create a thread and mark it as attaching so it will be skipped by the

  5382   // ThreadsListEnumerator - see CR 6404306

  5383   JavaThread* thread = new JavaThread(true);

  5385   // Set correct safepoint info. The thread is going to call into Java when

  5386   // initializing the Java level thread object. Hence, the correct state must

  5387   // be set in order for the Safepoint code to deal with it correctly.

  5388   thread->set_thread_state(_thread_in_vm);

  5389   // Must do this before initialize_thread_local_storage

  5390   thread->record_stack_base_and_size();

  5392   thread->initialize_thread_local_storage();

  5394   if (!os::create_attached_thread(thread)) {

  5395     delete thread;

  5396     return JNI_ERR;

  5397   }

  5398   // Enable stack overflow checks

  5399   thread->create_stack_guard_pages();

  5401   thread->initialize_tlab();

  5403   thread->cache_global_variables();

  5405   // Crucial that we do not have a safepoint check for this thread, since it has

  5406   // not been added to the Thread list yet.

  5407   { Threads_lock->lock_without_safepoint_check();

  5408     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5409     // avoid this thread trying to do a GC before it is added to the thread-list

  5410     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5411     Threads::add(thread, daemon);

  5412     Threads_lock->unlock();

  5413   }

  5414   // Create thread group and name info from attach arguments

  5415   oop group = NULL;

  5416   char* thread_name = NULL;

  5417   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5418     group = JNIHandles::resolve(args->group);

  5419     thread_name = args->name; // may be NULL

  5420   }

  5421   if (group == NULL) group = Universe::main_thread_group();

  5423   // Create Java level thread object and attach it to this thread

  5424   bool attach_failed = false;

  5425   {

  5426     EXCEPTION_MARK;

  5427     HandleMark hm(THREAD);

  5428     Handle thread_group(THREAD, group);

  5429     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5430     if (HAS_PENDING_EXCEPTION) {

  5431       CLEAR_PENDING_EXCEPTION;

  5432       // cleanup outside the handle mark.

  5433       attach_failed = true;

  5434     }

  5435   }

  5437   if (attach_failed) {

  5438     // Added missing cleanup

  5439     thread->cleanup_failed_attach_current_thread();

  5440     return JNI_ERR;

  5441   }

  5443   // mark the thread as no longer attaching

  5444   // this uses a fence to push the change through so we don't have

  5445   // to regrab the threads_lock

  5446   thread->set_done_attaching_via_jni();

  5448   // Set java thread status.

  5449   java_lang_Thread::set_thread_status(thread->threadObj(),

  5450               java_lang_Thread::RUNNABLE);

  5452   // Notify the debugger

  5453   if (JvmtiExport::should_post_thread_life()) {

  5454     JvmtiExport::post_thread_start(thread);

  5455   }

  5457   EventThreadStart event;

  5458   if (event.should_commit()) {

  5459     event.set_javalangthread(java_lang_Thread::thread_id(thread->threadObj()));

  5460     event.commit();

  5461   }

  5463   *(JNIEnv**)penv = thread->jni_environment();

  5465   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5466   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5467   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5468   // needed.

  5470   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5472   // Perform any platform dependent FPU setup

  5473   os::setup_fpu();

  5475   return JNI_OK;

  5476 }

  5479 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5480 #ifndef USDT2

  5481   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5482 #else /* USDT2 */

  5483   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5484                                         vm, penv, _args);

  5485 #endif /* USDT2 */

  5486   if (!vm_created) {

  5487 #ifndef USDT2

  5488     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5489 #else /* USDT2 */

  5490   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5491                                          (uint32_t) JNI_ERR);

  5492 #endif /* USDT2 */

  5493     return JNI_ERR;

  5494   }

  5496   JNIWrapper("AttachCurrentThread");

  5497   jint ret = attach_current_thread(vm, penv, _args, false);

  5498 #ifndef USDT2

  5499   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5500 #else /* USDT2 */

  5501   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5502                                          ret);

  5503 #endif /* USDT2 */

  5504   return ret;

  5505 }

  5508 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5509 #ifndef USDT2

  5510   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5511 #else /* USDT2 */

  5512   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5513                                         vm);

  5514 #endif /* USDT2 */

  5515   VM_Exit::block_if_vm_exited();

  5517   JNIWrapper("DetachCurrentThread");

  5519   // If the thread has been deattacted the operations is a no-op

  5520   if (ThreadLocalStorage::thread() == NULL) {

  5521 #ifndef USDT2

  5522     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5523 #else /* USDT2 */

  5524   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5525                                          JNI_OK);

  5526 #endif /* USDT2 */

  5527     return JNI_OK;

  5528   }

  5530   JavaThread* thread = JavaThread::current();

  5531   if (thread->has_last_Java_frame()) {

  5532 #ifndef USDT2

  5533     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5534 #else /* USDT2 */

  5535   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5536                                          (uint32_t) JNI_ERR);

  5537 #endif /* USDT2 */

  5538     // Can't detach a thread that's running java, that can't work.

  5539     return JNI_ERR;

  5540   }

  5542   // Safepoint support. Have to do call-back to safepoint code, if in the

  5543   // middel of a safepoint operation

  5544   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5546   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5547   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5548   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5549   // of the guards is visible in jni_AttachCurrentThread above,

  5550   // the removal of the guards is buried below in JavaThread::exit()

  5551   // here. The abstraction should be more symmetrically either exposed

  5552   // or hidden (e.g. it could probably be hidden in the same

  5553   // (platform-dependent) methods where we do alternate stack

  5554   // maintenance work?)

  5555   thread->exit(false, JavaThread::jni_detach);

  5556   delete thread;

  5558 #ifndef USDT2

  5559   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5560 #else /* USDT2 */

  5561   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5562                                          JNI_OK);

  5563 #endif /* USDT2 */

  5564   return JNI_OK;

  5565 }

  5567 #ifndef USDT2

  5568 DT_RETURN_MARK_DECL(GetEnv, jint);

  5569 #else /* USDT2 */

  5570 DT_RETURN_MARK_DECL(GetEnv, jint

  5571                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5572 #endif /* USDT2 */

  5574 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5575 #ifndef USDT2

  5576   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5577 #else /* USDT2 */

  5578   HOTSPOT_JNI_GETENV_ENTRY(

  5579                            vm, penv, version);

  5580 #endif /* USDT2 */

  5581   jint ret = JNI_ERR;

  5582   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5584   if (!vm_created) {

  5585     *penv = NULL;

  5586     ret = JNI_EDETACHED;

  5587     return ret;

  5588   }

  5590   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5591     return ret;

  5592   }

  5594 #ifndef JVMPI_VERSION_1

  5595 // need these in order to be polite about older agents

  5596 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5597 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5598 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5599 #endif // !JVMPI_VERSION_1

  5601   Thread* thread = ThreadLocalStorage::thread();

  5602   if (thread != NULL && thread->is_Java_thread()) {

  5603     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5604       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5605       ret = JNI_OK;

  5606       return ret;

  5608     } else if (version == JVMPI_VERSION_1 ||

  5609                version == JVMPI_VERSION_1_1 ||

  5610                version == JVMPI_VERSION_1_2) {

  5611       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5612       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5613       ret = JNI_EVERSION;

  5614       return ret;

  5615     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5616       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5617       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5618       ret = JNI_EVERSION;

  5619       return ret;

  5620     } else {

  5621       *penv = NULL;

  5622       ret = JNI_EVERSION;

  5623       return ret;

  5624     }

  5625   } else {

  5626     *penv = NULL;

  5627     ret = JNI_EDETACHED;

  5628     return ret;

  5629   }

  5630 }

  5633 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5634 #ifndef USDT2

  5635   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5636 #else /* USDT2 */

  5637   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5638                                                 vm, penv, _args);

  5639 #endif /* USDT2 */

  5640   if (!vm_created) {

  5641 #ifndef USDT2

  5642     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5643 #else /* USDT2 */

  5644   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5645                                                  (uint32_t) JNI_ERR);

  5646 #endif /* USDT2 */

  5647     return JNI_ERR;

  5648   }

  5650   JNIWrapper("AttachCurrentThreadAsDaemon");

  5651   jint ret = attach_current_thread(vm, penv, _args, true);

  5652 #ifndef USDT2

  5653   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5654 #else /* USDT2 */

  5655   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5656                                                  ret);

  5657 #endif /* USDT2 */

  5658   return ret;

  5659 }

  5662 } // End extern "C"

  5664 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5665     NULL,

  5666     NULL,

  5667     NULL,

  5669     jni_DestroyJavaVM,

  5670     jni_AttachCurrentThread,

  5671     jni_DetachCurrentThread,

  5672     jni_GetEnv,

  5673     jni_AttachCurrentThreadAsDaemon

  5674 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@f3108e56b502

src/share/vm/prims/jni.cpp