jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@59c790074993

8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
Summary: Make metaspace::contains be lock free and used to see if something is in metaspace, also compare Method* with vtbl pointer.
Reviewed-by: dholmes, sspitsyn, dcubed, jmasa

     1 /*

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

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

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

     5  *

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

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

     8  * published by the Free Software Foundation.

     9  *

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

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

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

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

    14  * accompanied this code).

    15  *

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

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

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

    19  *

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

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

    22  * questions.

    23  *

    24  */

    26 #include "precompiled.hpp"

    27 #include "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 #ifndef SERIALGC

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

    37 #endif // SERIALGC

    38 #include "memory/allocation.hpp"

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

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

    41 #include "memory/oopFactory.hpp"

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

    43 #include "oops/instanceKlass.hpp"

    44 #include "oops/instanceOop.hpp"

    45 #include "oops/markOop.hpp"

    46 #include "oops/method.hpp"

    47 #include "oops/objArrayKlass.hpp"

    48 #include "oops/objArrayOop.hpp"

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

    50 #include "oops/symbol.hpp"

    51 #include "oops/typeArrayKlass.hpp"

    52 #include "oops/typeArrayOop.hpp"

    53 #include "prims/jni.h"

    54 #include "prims/jniCheck.hpp"

    55 #include "prims/jniExport.hpp"

    56 #include "prims/jniFastGetField.hpp"

    57 #include "prims/jvm.h"

    58 #include "prims/jvm_misc.hpp"

    59 #include "prims/jvmtiExport.hpp"

    60 #include "prims/jvmtiThreadState.hpp"

    61 #include "runtime/compilationPolicy.hpp"

    62 #include "runtime/fieldDescriptor.hpp"

    63 #include "runtime/fprofiler.hpp"

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

    65 #include "runtime/interfaceSupport.hpp"

    66 #include "runtime/java.hpp"

    67 #include "runtime/javaCalls.hpp"

    68 #include "runtime/jfieldIDWorkaround.hpp"

    69 #include "runtime/reflection.hpp"

    70 #include "runtime/sharedRuntime.hpp"

    71 #include "runtime/signature.hpp"

    72 #include "runtime/vm_operations.hpp"

    73 #include "services/runtimeService.hpp"

    74 #include "trace/tracing.hpp"

    75 #include "trace/traceEventTypes.hpp"

    76 #include "utilities/defaultStream.hpp"

    77 #include "utilities/dtrace.hpp"

    78 #include "utilities/events.hpp"

    79 #include "utilities/histogram.hpp"

    80 #ifdef TARGET_OS_FAMILY_linux

    81 # include "os_linux.inline.hpp"

    82 # include "thread_linux.inline.hpp"

    83 #endif

    84 #ifdef TARGET_OS_FAMILY_solaris

    85 # include "os_solaris.inline.hpp"

    86 # include "thread_solaris.inline.hpp"

    87 #endif

    88 #ifdef TARGET_OS_FAMILY_windows

    89 # include "os_windows.inline.hpp"

    90 # include "thread_windows.inline.hpp"

    91 #endif

    92 #ifdef TARGET_OS_FAMILY_bsd

    93 # include "os_bsd.inline.hpp"

    94 # include "thread_bsd.inline.hpp"

    95 #endif

    97 static jint CurrentVersion = JNI_VERSION_1_6;

   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 // Pick a reasonable higher bound for local capacity requested

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

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

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

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

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

   303 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   306 // Wrapper to trace JNI functions

   308 #ifdef ASSERT

   309   Histogram* JNIHistogram;

   310   static volatile jint JNIHistogram_lock = 0;

   312   class JNITraceWrapper : public StackObj {

   313    public:

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

   315       if (TraceJNICalls) {

   316         va_list ap;

   317         va_start(ap, format);

   318         tty->print("JNI ");

   319         tty->vprint_cr(format, ap);

   320         va_end(ap);

   321       }

   322     }

   323   };

   325   class JNIHistogramElement : public HistogramElement {

   326     public:

   327      JNIHistogramElement(const char* name);

   328   };

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

   331     _name = elementName;

   332     uintx count = 0;

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

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

   336         count +=1;

   337         if ( (WarnOnStalledSpinLock > 0)

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

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

   340         }

   341       }

   342      }

   345     if(JNIHistogram == NULL)

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

   348     JNIHistogram->add_element(this);

   349     Atomic::dec(&JNIHistogram_lock);

   350   }

   352   #define JNICountWrapper(arg)                                     \

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

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

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

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

   357 #else

   358   #define JNIWrapper(arg)

   359 #endif

   362 // Implementation of JNI entries

   364 #ifndef USDT2

   365 DT_RETURN_MARK_DECL(DefineClass, jclass);

   366 #else /* USDT2 */

   367 DT_RETURN_MARK_DECL(DefineClass, jclass

   368                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   369 #endif /* USDT2 */

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

   372                                   const jbyte *buf, jsize bufLen))

   373   JNIWrapper("DefineClass");

   375 #ifndef USDT2

   376   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   378 #else /* USDT2 */

   379   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   381 #endif /* USDT2 */

   382   jclass cls = NULL;

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

   385   TempNewSymbol class_name = NULL;

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

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

   388   if (name != NULL) {

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

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

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

   392       // into the constant pool.

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

   394     }

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

   396   }

   397   ResourceMark rm(THREAD);

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

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

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

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

   403     // If not, increment the corresponding counter

   404     if (ObjectSynchronizer::

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

   406         ObjectSynchronizer::owner_self) {

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

   408     }

   409   }

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

   411                                                      Handle(), &st, true,

   412                                                      CHECK_NULL);

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

   415     trace_class_resolution(k);

   416   }

   418   cls = (jclass)JNIHandles::make_local(

   419     env, k->java_mirror());

   420   return cls;

   421 JNI_END

   425 static bool first_time_FindClass = true;

   427 #ifndef USDT2

   428 DT_RETURN_MARK_DECL(FindClass, jclass);

   429 #else /* USDT2 */

   430 DT_RETURN_MARK_DECL(FindClass, jclass

   431                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   432 #endif /* USDT2 */

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

   435   JNIWrapper("FindClass");

   436 #ifndef USDT2

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

   438 #else /* USDT2 */

   439   HOTSPOT_JNI_FINDCLASS_ENTRY(

   440                               env, (char *)name);

   441 #endif /* USDT2 */

   443   jclass result = NULL;

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

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

   447   bool first_time = first_time_FindClass;

   448   first_time_FindClass = false;

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

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

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

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

   454   }

   456   //%note jni_3

   457   Handle loader;

   458   Handle protection_domain;

   459   // Find calling class

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

   461   if (k.not_null()) {

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

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

   464     // in the correct class context.

   465     if (loader.is_null() &&

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

   467       JavaValue result(T_OBJECT);

   468       JavaCalls::call_static(&result, k,

   469                                       vmSymbols::getFromClass_name(),

   470                                       vmSymbols::void_class_signature(),

   471                                       thread);

   472       if (HAS_PENDING_EXCEPTION) {

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

   474         CLEAR_PENDING_EXCEPTION;

   475         THROW_HANDLE_0(ex);

   476       }

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

   478       loader = Handle(THREAD,

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

   480       protection_domain = Handle(THREAD,

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

   482     }

   483   } else {

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

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

   486   }

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

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

   490                                         protection_domain, true, thread);

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

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

   494   }

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

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

   498   // Controlled by flag DelayCompilationDuringStartup.

   499   if (first_time && !CompileTheWorld)

   500     CompilationPolicy::completed_vm_startup();

   502   return result;

   503 JNI_END

   505 #ifndef USDT2

   506 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   507 #else /* USDT2 */

   508 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   509                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   510 #endif /* USDT2 */

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

   513   JNIWrapper("FromReflectedMethod");

   514 #ifndef USDT2

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

   516 #else /* USDT2 */

   517   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   518                                         env, method);

   519 #endif /* USDT2 */

   520   jmethodID ret = NULL;

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

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

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

   525   oop mirror     = NULL;

   526   int slot       = 0;

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

   529     mirror = java_lang_reflect_Constructor::clazz(reflected);

   530     slot   = java_lang_reflect_Constructor::slot(reflected);

   531   } else {

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

   533     mirror = java_lang_reflect_Method::clazz(reflected);

   534     slot   = java_lang_reflect_Method::slot(reflected);

   535   }

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

   538   KlassHandle k1(THREAD, k);

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

   540   k1()->initialize(CHECK_NULL);

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

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

   543   return ret;

   544 JNI_END

   546 #ifndef USDT2

   547 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   548 #else /* USDT2 */

   549 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   550                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   551 #endif /* USDT2 */

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

   554   JNIWrapper("FromReflectedField");

   555 #ifndef USDT2

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

   557 #else /* USDT2 */

   558   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   559                                        env, field);

   560 #endif /* USDT2 */

   561   jfieldID ret = NULL;

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

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

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

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

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

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

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

   571   KlassHandle k1(THREAD, k);

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

   573   k1()->initialize(CHECK_NULL);

   575   // First check if this is a static field

   576   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   580     debug_only(id->set_is_static_field_id();)

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

   582     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   583     return ret;

   584   }

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

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

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

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

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

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

   592   return ret;

   593 JNI_END

   595 #ifndef USDT2

   596 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   597 #else /* USDT2 */

   598 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   599                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   600 #endif /* USDT2 */

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

   603   JNIWrapper("ToReflectedMethod");

   604 #ifndef USDT2

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

   606 #else /* USDT2 */

   607   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   609 #endif /* USDT2 */

   610   jobject ret = NULL;

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

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

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

   615   oop reflection_method;

   616   if (m->is_initializer()) {

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

   618   } else {

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

   620   }

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

   622   return ret;

   623 JNI_END

   625 #ifndef USDT2

   626 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   627 #else /* USDT2 */

   628 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   629                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   630 #endif /* USDT2 */

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

   633   JNIWrapper("GetSuperclass");

   634 #ifndef USDT2

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

   636 #else /* USDT2 */

   637   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   638                                   env, sub);

   639 #endif /* USDT2 */

   640   jclass obj = NULL;

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

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

   644   // primitive classes return NULL

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

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

   648   // arrays return Object

   649   // interfaces return NULL

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

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

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

   654   // return mirror for superclass

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

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

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

   658                                  ? SystemDictionary::Object_klass()

   659                                  : k->super() ) );

   660   assert(super == super2,

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

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

   663   return obj;

   664 JNI_END

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

   667   JNIWrapper("IsSubclassOf");

   668 #ifndef USDT2

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

   670 #else /* USDT2 */

   671   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   672                                      env, sub, super);

   673 #endif /* USDT2 */

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

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

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

   677       java_lang_Class::is_primitive(super_mirror)) {

   678     jboolean ret = (sub_mirror == super_mirror);

   679 #ifndef USDT2

   680     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   681 #else /* USDT2 */

   682     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   683                                         ret);

   684 #endif /* USDT2 */

   685     return ret;

   686   }

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

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

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

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

   691                    JNI_TRUE : JNI_FALSE;

   692 #ifndef USDT2

   693   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   694 #else /* USDT2 */

   695   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   696                                       ret);

   697 #endif /* USDT2 */

   698   return ret;

   699 JNI_END

   701 #ifndef USDT2

   702 DT_RETURN_MARK_DECL(Throw, jint);

   703 #else /* USDT2 */

   704 DT_RETURN_MARK_DECL(Throw, jint

   705                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   706 #endif /* USDT2 */

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

   709   JNIWrapper("Throw");

   710 #ifndef USDT2

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

   712 #else /* USDT2 */

   713   HOTSPOT_JNI_THROW_ENTRY(

   714  env, obj);

   715 #endif /* USDT2 */

   716   jint ret = JNI_OK;

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

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

   720   ShouldNotReachHere();

   721 JNI_END

   723 #ifndef USDT2

   724 DT_RETURN_MARK_DECL(ThrowNew, jint);

   725 #else /* USDT2 */

   726 DT_RETURN_MARK_DECL(ThrowNew, jint

   727                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   728 #endif /* USDT2 */

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

   731   JNIWrapper("ThrowNew");

   732 #ifndef USDT2

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

   734 #else /* USDT2 */

   735   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   737 #endif /* USDT2 */

   738   jint ret = JNI_OK;

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

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

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

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

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

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

   746   ShouldNotReachHere();

   747 JNI_END

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

   751 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   757 // state transition.

   759 static void jni_check_async_exceptions(JavaThread *thread) {

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

   761   thread->check_and_handle_async_exceptions();

   762 }

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

   765   JNIWrapper("ExceptionOccurred");

   766 #ifndef USDT2

   767   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   768 #else /* USDT2 */

   769   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   770                                       env);

   771 #endif /* USDT2 */

   772   jni_check_async_exceptions(thread);

   773   oop exception = thread->pending_exception();

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

   775 #ifndef USDT2

   776   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   777 #else /* USDT2 */

   778   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   779                                        ret);

   780 #endif /* USDT2 */

   781   return ret;

   782 JNI_END

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

   786   JNIWrapper("ExceptionDescribe");

   787 #ifndef USDT2

   788   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   789 #else /* USDT2 */

   790   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   791                                       env);

   792 #endif /* USDT2 */

   793   if (thread->has_pending_exception()) {

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

   795     thread->clear_pending_exception();

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

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

   798     } else {

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

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

   801         ResourceMark rm(THREAD);

   802         jio_fprintf(defaultStream::error_stream(),

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

   804       }

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

   806         JavaValue result(T_VOID);

   807         JavaCalls::call_virtual(&result,

   808                                 ex,

   809                                 KlassHandle(THREAD,

   810                                   SystemDictionary::Throwable_klass()),

   811                                 vmSymbols::printStackTrace_name(),

   812                                 vmSymbols::void_method_signature(),

   813                                 THREAD);

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

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

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

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

   818         // is expected.

   819         CLEAR_PENDING_EXCEPTION;

   820       } else {

   821         ResourceMark rm(THREAD);

   822         jio_fprintf(defaultStream::error_stream(),

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

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

   825       }

   826     }

   827   }

   828 #ifndef USDT2

   829   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   830 #else /* USDT2 */

   831   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   832                                        );

   833 #endif /* USDT2 */

   834 JNI_END

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

   838   JNIWrapper("ExceptionClear");

   839 #ifndef USDT2

   840   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   841 #else /* USDT2 */

   842   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   843                                    env);

   844 #endif /* USDT2 */

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

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

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

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

   850     state->set_exception_caught();

   851   }

   852   thread->clear_pending_exception();

   853 #ifndef USDT2

   854   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   855 #else /* USDT2 */

   856   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   857                                     );

   858 #endif /* USDT2 */

   859 JNI_END

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

   863   JNIWrapper("FatalError");

   864 #ifndef USDT2

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

   866 #else /* USDT2 */

   867   HOTSPOT_JNI_FATALERROR_ENTRY(

   868                                env, (char *) msg);

   869 #endif /* USDT2 */

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

   871   thread->print_stack();

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

   873 JNI_END

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

   877   JNIWrapper("PushLocalFrame");

   878 #ifndef USDT2

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

   880 #else /* USDT2 */

   881   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   882                                    env, capacity);

   883 #endif /* USDT2 */

   884   //%note jni_11

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

   886 #ifndef USDT2

   887     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   888 #else /* USDT2 */

   889     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   890                                       (uint32_t)JNI_ERR);

   891 #endif /* USDT2 */

   892     return JNI_ERR;

   893   }

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

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

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

   897   new_handles->set_pop_frame_link(old_handles);

   898   thread->set_active_handles(new_handles);

   899   jint ret = JNI_OK;

   900 #ifndef USDT2

   901   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   902 #else /* USDT2 */

   903   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   904                                     ret);

   905 #endif /* USDT2 */

   906   return ret;

   907 JNI_END

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

   911   JNIWrapper("PopLocalFrame");

   912 #ifndef USDT2

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

   914 #else /* USDT2 */

   915   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   916                                   env, result);

   917 #endif /* USDT2 */

   918   //%note jni_11

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

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

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

   922   if (new_handles != NULL) {

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

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

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

   926     // the release_block call will release the blocks.

   927     thread->set_active_handles(new_handles);

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

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

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

   931   }

   932 #ifndef USDT2

   933   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   934 #else /* USDT2 */

   935   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   936                                    result);

   937 #endif /* USDT2 */

   938   return result;

   939 JNI_END

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

   943   JNIWrapper("NewGlobalRef");

   944 #ifndef USDT2

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

   946 #else /* USDT2 */

   947   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   948                                  env, ref);

   949 #endif /* USDT2 */

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

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

   952 #ifndef USDT2

   953   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   954 #else /* USDT2 */

   955   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   956                                   ret);

   957 #endif /* USDT2 */

   958   return ret;

   959 JNI_END

   961 // Must be JNI_ENTRY (with HandleMark)

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

   963   JNIWrapper("DeleteGlobalRef");

   964 #ifndef USDT2

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

   966 #else /* USDT2 */

   967   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   968                                     env, ref);

   969 #endif /* USDT2 */

   970   JNIHandles::destroy_global(ref);

   971 #ifndef USDT2

   972   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   973 #else /* USDT2 */

   974   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   975                                      );

   976 #endif /* USDT2 */

   977 JNI_END

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

   980   JNIWrapper("DeleteLocalRef");

   981 #ifndef USDT2

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

   983 #else /* USDT2 */

   984   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   985                                    env, obj);

   986 #endif /* USDT2 */

   987   JNIHandles::destroy_local(obj);

   988 #ifndef USDT2

   989   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   990 #else /* USDT2 */

   991   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   992                                     );

   993 #endif /* USDT2 */

   994 JNI_END

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

   997   JNIWrapper("IsSameObject");

   998 #ifndef USDT2

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

  1000 #else /* USDT2 */

  1001   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

  1002                                  env, r1, r2);

  1003 #endif /* USDT2 */

  1004   oop a = JNIHandles::resolve(r1);

  1005   oop b = JNIHandles::resolve(r2);

  1006   jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;

  1007 #ifndef USDT2

  1008   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1009 #else /* USDT2 */

  1010   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1011                                   ret);

  1012 #endif /* USDT2 */

  1013   return ret;

  1014 JNI_END

  1017 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))

  1018   JNIWrapper("NewLocalRef");

  1019 #ifndef USDT2

  1020   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);

  1021 #else /* USDT2 */

  1022   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1023                                 env, ref);

  1024 #endif /* USDT2 */

  1025   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));

  1026 #ifndef USDT2

  1027   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1028 #else /* USDT2 */

  1029   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1030                                  ret);

  1031 #endif /* USDT2 */

  1032   return ret;

  1033 JNI_END

  1035 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))

  1036   JNIWrapper("EnsureLocalCapacity");

  1037 #ifndef USDT2

  1038   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);

  1039 #else /* USDT2 */

  1040   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1041                                         env, capacity);

  1042 #endif /* USDT2 */

  1043   jint ret;

  1044   if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) {

  1045     ret = JNI_OK;

  1046   } else {

  1047     ret = JNI_ERR;

  1048   }

  1049 #ifndef USDT2

  1050   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1051 #else /* USDT2 */

  1052   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1053                                          ret);

  1054 #endif /* USDT2 */

  1055   return ret;

  1056 JNI_END

  1058 // Return the Handle Type

  1059 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))

  1060   JNIWrapper("GetObjectRefType");

  1061 #ifndef USDT2

  1062   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);

  1063 #else /* USDT2 */

  1064   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1065                                      env, obj);

  1066 #endif /* USDT2 */

  1067   jobjectRefType ret;

  1068   if (JNIHandles::is_local_handle(thread, obj) ||

  1069       JNIHandles::is_frame_handle(thread, obj))

  1070     ret = JNILocalRefType;

  1071   else if (JNIHandles::is_global_handle(obj))

  1072     ret = JNIGlobalRefType;

  1073   else if (JNIHandles::is_weak_global_handle(obj))

  1074     ret = JNIWeakGlobalRefType;

  1075   else

  1076     ret = JNIInvalidRefType;

  1077 #ifndef USDT2

  1078   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1079 #else /* USDT2 */

  1080   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1081                                       (void *) ret);

  1082 #endif /* USDT2 */

  1083   return ret;

  1084 JNI_END

  1087 class JNI_ArgumentPusher : public SignatureIterator {

  1088  protected:

  1089   JavaCallArguments*  _arguments;

  1091   virtual void get_bool   () = 0;

  1092   virtual void get_char   () = 0;

  1093   virtual void get_short  () = 0;

  1094   virtual void get_byte   () = 0;

  1095   virtual void get_int    () = 0;

  1096   virtual void get_long   () = 0;

  1097   virtual void get_float  () = 0;

  1098   virtual void get_double () = 0;

  1099   virtual void get_object () = 0;

  1101   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {

  1102     this->_return_type = T_ILLEGAL;

  1103     _arguments = NULL;

  1104   }

  1106  public:

  1107   virtual void iterate( uint64_t fingerprint ) = 0;

  1109   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }

  1111   inline void do_bool()                     { if (!is_return_type()) get_bool();   }

  1112   inline void do_char()                     { if (!is_return_type()) get_char();   }

  1113   inline void do_short()                    { if (!is_return_type()) get_short();  }

  1114   inline void do_byte()                     { if (!is_return_type()) get_byte();   }

  1115   inline void do_int()                      { if (!is_return_type()) get_int();    }

  1116   inline void do_long()                     { if (!is_return_type()) get_long();   }

  1117   inline void do_float()                    { if (!is_return_type()) get_float();  }

  1118   inline void do_double()                   { if (!is_return_type()) get_double(); }

  1119   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }

  1120   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array

  1121   inline void do_void()                     { }

  1123   JavaCallArguments* arguments()     { return _arguments; }

  1124   void push_receiver(Handle h)       { _arguments->push_oop(h); }

  1125 };

  1128 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1129  protected:

  1130   va_list _ap;

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

  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           case char_parm:

  1179           case short_parm:

  1180           case byte_parm:

  1181           case int_parm:

  1182             get_int();

  1183             break;

  1184           case obj_parm:

  1185             get_object();

  1186             break;

  1187           case long_parm:

  1188             get_long();

  1189             break;

  1190           case float_parm:

  1191             get_float();

  1192             break;

  1193           case double_parm:

  1194             get_double();

  1195             break;

  1196           case done_parm:

  1197             return;

  1198             break;

  1199           default:

  1200             ShouldNotReachHere();

  1201             break;

  1202         }

  1203         fingerprint >>= parameter_feature_size;

  1204       }

  1205     }

  1206   }

  1207 };

  1210 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1211  protected:

  1212   const jvalue *_ap;

  1214   inline void get_bool()   { _arguments->push_int((jint)(_ap++)->z); }

  1215   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }

  1216   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }

  1217   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }

  1218   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }

  1220   inline void get_long()   { _arguments->push_long((_ap++)->j);  }

  1221   inline void get_float()  { _arguments->push_float((_ap++)->f); }

  1222   inline void get_double() { _arguments->push_double((_ap++)->d);}

  1223   inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }

  1225   inline void set_ap(const jvalue *rap) { _ap = rap; }

  1227  public:

  1228   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)

  1229        : JNI_ArgumentPusher(signature) {

  1230     set_ap(rap);

  1231   }

  1232   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

  1233       : JNI_ArgumentPusher(Method::resolve_jmethod_id(method_id)->signature()) {

  1234     set_ap(rap);

  1235   }

  1237   // Optimized path if we have the bitvector form of signature

  1238   void iterate( uint64_t fingerprint ) {

  1239     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments

  1240     else {

  1241       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1242                                   result_feature_mask);

  1243       assert(fingerprint, "Fingerprint should not be 0");

  1244       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1245       while ( 1 ) {

  1246         switch ( fingerprint & parameter_feature_mask ) {

  1247           case bool_parm:

  1248             get_bool();

  1249             break;

  1250           case char_parm:

  1251             get_char();

  1252             break;

  1253           case short_parm:

  1254             get_short();

  1255             break;

  1256           case byte_parm:

  1257             get_byte();

  1258             break;

  1259           case int_parm:

  1260             get_int();

  1261             break;

  1262           case obj_parm:

  1263             get_object();

  1264             break;

  1265           case long_parm:

  1266             get_long();

  1267             break;

  1268           case float_parm:

  1269             get_float();

  1270             break;

  1271           case double_parm:

  1272             get_double();

  1273             break;

  1274           case done_parm:

  1275             return;

  1276             break;

  1277           default:

  1278             ShouldNotReachHere();

  1279             break;

  1280         }

  1281         fingerprint >>= parameter_feature_size;

  1282       }

  1283     }

  1284   }

  1285 };

  1288 enum JNICallType {

  1289   JNI_STATIC,

  1290   JNI_VIRTUAL,

  1291   JNI_NONVIRTUAL

  1292 };

  1294 static methodHandle jni_resolve_interface_call(Handle recv, methodHandle method, TRAPS) {

  1295   assert(!method.is_null() , "method should not be null");

  1297   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1298   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1299   KlassHandle spec_klass (THREAD, method->method_holder());

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

  1301   Symbol*  signature  = method->signature();

  1302   CallInfo info;

  1303   LinkResolver::resolve_interface_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1304   return info.selected_method();

  1305 }

  1307 static methodHandle jni_resolve_virtual_call(Handle recv, methodHandle method, TRAPS) {

  1308   assert(!method.is_null() , "method should not be null");

  1310   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1311   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1312   KlassHandle spec_klass (THREAD, method->method_holder());

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

  1314   Symbol*  signature  = method->signature();

  1315   CallInfo info;

  1316   LinkResolver::resolve_virtual_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1317   return info.selected_method();

  1318 }

  1322 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1323   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1325   // Create object to hold arguments for the JavaCall, and associate it with

  1326   // the jni parser

  1327   ResourceMark rm(THREAD);

  1328   int number_of_parameters = method->size_of_parameters();

  1329   JavaCallArguments java_args(number_of_parameters);

  1330   args->set_java_argument_object(&java_args);

  1332   assert(method->is_static(), "method should be static");

  1334   // Fill out JavaCallArguments object

  1335   args->iterate( Fingerprinter(method).fingerprint() );

  1336   // Initialize result type

  1337   result->set_type(args->get_ret_type());

  1339   // Invoke the method. Result is returned as oop.

  1340   JavaCalls::call(result, method, &java_args, CHECK);

  1342   // Convert result

  1343   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1344     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1345   }

  1346 }

  1349 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1350   oop recv = JNIHandles::resolve(receiver);

  1351   if (recv == NULL) {

  1352     THROW(vmSymbols::java_lang_NullPointerException());

  1353   }

  1354   Handle h_recv(THREAD, recv);

  1356   int number_of_parameters;

  1357   Method* selected_method;

  1358   {

  1359     Method* m = Method::resolve_jmethod_id(method_id);

  1360     number_of_parameters = m->size_of_parameters();

  1361     Klass* holder = m->method_holder();

  1362     if (!(holder)->is_interface()) {

  1363       // non-interface call -- for that little speed boost, don't handlize

  1364       debug_only(No_Safepoint_Verifier nosafepoint;)

  1365       if (call_type == JNI_VIRTUAL) {

  1366         // jni_GetMethodID makes sure class is linked and initialized

  1367         // so m should have a valid vtable index.

  1368         int vtbl_index = m->vtable_index();

  1369         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1370           Klass* k = h_recv->klass();

  1371           // k might be an arrayKlassOop but all vtables start at

  1372           // the same place. The cast is to avoid virtual call and assertion.

  1373           InstanceKlass *ik = (InstanceKlass*)k;

  1374           selected_method = ik->method_at_vtable(vtbl_index);

  1375         } else {

  1376           // final method

  1377           selected_method = m;

  1378         }

  1379       } else {

  1380         // JNI_NONVIRTUAL call

  1381         selected_method = m;

  1382       }

  1383     } else {

  1384       // interface call

  1385       KlassHandle h_holder(THREAD, holder);

  1387       int itbl_index = m->cached_itable_index();

  1388       if (itbl_index == -1) {

  1389         itbl_index = klassItable::compute_itable_index(m);

  1390         m->set_cached_itable_index(itbl_index);

  1391         // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again

  1392       }

  1393       Klass* k = h_recv->klass();

  1394       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1395     }

  1396   }

  1398   methodHandle method(THREAD, selected_method);

  1400   // Create object to hold arguments for the JavaCall, and associate it with

  1401   // the jni parser

  1402   ResourceMark rm(THREAD);

  1403   JavaCallArguments java_args(number_of_parameters);

  1404   args->set_java_argument_object(&java_args);

  1406   // handle arguments

  1407   assert(!method->is_static(), "method should not be static");

  1408   args->push_receiver(h_recv); // Push jobject handle

  1410   // Fill out JavaCallArguments object

  1411   args->iterate( Fingerprinter(method).fingerprint() );

  1412   // Initialize result type

  1413   result->set_type(args->get_ret_type());

  1415   // Invoke the method. Result is returned as oop.

  1416   JavaCalls::call(result, method, &java_args, CHECK);

  1418   // Convert result

  1419   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1420     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1421   }

  1422 }

  1425 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1426   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1427   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1428   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1429   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1430   return ih;

  1431 }

  1433 #ifndef USDT2

  1434 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1435 #else /* USDT2 */

  1436 DT_RETURN_MARK_DECL(AllocObject, jobject

  1437                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1438 #endif /* USDT2 */

  1440 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1441   JNIWrapper("AllocObject");

  1443 #ifndef USDT2

  1444   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1445 #else /* USDT2 */

  1446   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1447                                 env, clazz);

  1448 #endif /* USDT2 */

  1449   jobject ret = NULL;

  1450   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1452   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1453   ret = JNIHandles::make_local(env, i);

  1454   return ret;

  1455 JNI_END

  1457 #ifndef USDT2

  1458 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1459 #else /* USDT2 */

  1460 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1461                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1462 #endif /* USDT2 */

  1464 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1465   JNIWrapper("NewObjectA");

  1466 #ifndef USDT2

  1467   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1468 #else /* USDT2 */

  1469   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1470                                env, clazz, (uintptr_t) methodID);

  1471 #endif /* USDT2 */

  1472   jobject obj = NULL;

  1473   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1475   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1476   obj = JNIHandles::make_local(env, i);

  1477   JavaValue jvalue(T_VOID);

  1478   JNI_ArgumentPusherArray ap(methodID, args);

  1479   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1480   return obj;

  1481 JNI_END

  1483 #ifndef USDT2

  1484 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1485 #else /* USDT2 */

  1486 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1487                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1488 #endif /* USDT2 */

  1490 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1491   JNIWrapper("NewObjectV");

  1492 #ifndef USDT2

  1493   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1494 #else /* USDT2 */

  1495   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1496                                env, clazz, (uintptr_t) methodID);

  1497 #endif /* USDT2 */

  1498   jobject obj = NULL;

  1499   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1501   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1502   obj = JNIHandles::make_local(env, i);

  1503   JavaValue jvalue(T_VOID);

  1504   JNI_ArgumentPusherVaArg ap(methodID, args);

  1505   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1506   return obj;

  1507 JNI_END

  1509 #ifndef USDT2

  1510 DT_RETURN_MARK_DECL(NewObject, jobject);

  1511 #else /* USDT2 */

  1512 DT_RETURN_MARK_DECL(NewObject, jobject

  1513                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1514 #endif /* USDT2 */

  1516 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1517   JNIWrapper("NewObject");

  1518 #ifndef USDT2

  1519   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1520 #else /* USDT2 */

  1521   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1522                               env, clazz, (uintptr_t) methodID);

  1523 #endif /* USDT2 */

  1524   jobject obj = NULL;

  1525   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1527   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1528   obj = JNIHandles::make_local(env, i);

  1529   va_list args;

  1530   va_start(args, methodID);

  1531   JavaValue jvalue(T_VOID);

  1532   JNI_ArgumentPusherVaArg ap(methodID, args);

  1533   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1534   va_end(args);

  1535   return obj;

  1536 JNI_END

  1539 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1540   JNIWrapper("GetObjectClass");

  1541 #ifndef USDT2

  1542   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1543 #else /* USDT2 */

  1544   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1545                                    env, obj);

  1546 #endif /* USDT2 */

  1547   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1548   jclass ret =

  1549     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1550 #ifndef USDT2

  1551   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1552 #else /* USDT2 */

  1553   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1554                                     ret);

  1555 #endif /* USDT2 */

  1556   return ret;

  1557 JNI_END

  1559 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1560   JNIWrapper("IsInstanceOf");

  1561 #ifndef USDT2

  1562   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1563 #else /* USDT2 */

  1564   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1565                                  env, obj, clazz);

  1566 #endif /* USDT2 */

  1567   jboolean ret = JNI_TRUE;

  1568   if (obj != NULL) {

  1569     ret = JNI_FALSE;

  1570     Klass* k = java_lang_Class::as_Klass(

  1571       JNIHandles::resolve_non_null(clazz));

  1572     if (k != NULL) {

  1573       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1574     }

  1575   }

  1576 #ifndef USDT2

  1577   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1578 #else /* USDT2 */

  1579   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1580                                   ret);

  1581 #endif /* USDT2 */

  1582   return ret;

  1583 JNI_END

  1586 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1587                                const char *sig, bool is_static, TRAPS) {

  1588   // %%%% This code should probably just call into a method in the LinkResolver

  1589   //

  1590   // The class should have been loaded (we have an instance of the class

  1591   // passed in) so the method and signature should already be in the symbol

  1592   // table.  If they're not there, the method doesn't exist.

  1593   const char *name_to_probe = (name_str == NULL)

  1594                         ? vmSymbols::object_initializer_name()->as_C_string()

  1595                         : name_str;

  1596   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1597   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1599   if (name == NULL || signature == NULL) {

  1600     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1601   }

  1603   // Throw a NoSuchMethodError exception if we have an instance of a

  1604   // primitive java.lang.Class

  1605   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

  1606     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1607   }

  1609   KlassHandle klass(THREAD,

  1610                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1612   // Make sure class is linked and initialized before handing id's out to

  1613   // Method*s.

  1614   klass()->initialize(CHECK_NULL);

  1616   Method* m;

  1617   if (name == vmSymbols::object_initializer_name() ||

  1618       name == vmSymbols::class_initializer_name()) {

  1619     // Never search superclasses for constructors

  1620     if (klass->oop_is_instance()) {

  1621       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1622     } else {

  1623       m = NULL;

  1624     }

  1625   } else {

  1626     m = klass->lookup_method(name, signature);

  1627     // Look up interfaces

  1628     if (m == NULL && klass->oop_is_instance()) {

  1629       m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,

  1630                                                                    signature);

  1631     }

  1632   }

  1633   if (m == NULL || (m->is_static() != is_static)) {

  1634     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1635   }

  1636   return m->jmethod_id();

  1637 }

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

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

  1642   JNIWrapper("GetMethodID");

  1643 #ifndef USDT2

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

  1645 #else /* USDT2 */

  1646   HOTSPOT_JNI_GETMETHODID_ENTRY(

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

  1648 #endif /* USDT2 */

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

  1650 #ifndef USDT2

  1651   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1652 #else /* USDT2 */

  1653   HOTSPOT_JNI_GETMETHODID_RETURN(

  1654                                  (uintptr_t) ret);

  1655 #endif /* USDT2 */

  1656   return ret;

  1657 JNI_END

  1660 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1661           const char *name, const char *sig))

  1662   JNIWrapper("GetStaticMethodID");

  1663 #ifndef USDT2

  1664   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1665 #else /* USDT2 */

  1666   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1667                                       env, (char *) clazz, (char *) name, (char *)sig);

  1668 #endif /* USDT2 */

  1669   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1670 #ifndef USDT2

  1671   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1672 #else /* USDT2 */

  1673   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1674                                        (uintptr_t) ret);

  1675 #endif /* USDT2 */

  1676   return ret;

  1677 JNI_END

  1681 //

  1682 // Calling Methods

  1683 //

  1685 #ifndef USDT2

  1686 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1687 \

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

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

  1690   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType);\

  1691 \

  1692 JNI_ENTRY(ResultType, \

  1693           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

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

  1695 \

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

  1697   ResultType ret = 0;\

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

  1699                      (const ResultType&)ret);\

  1700 \

  1701   va_list args; \

  1702   va_start(args, methodID); \

  1703   JavaValue jvalue(Tag); \

  1704   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1705   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1706   va_end(args); \

  1707   ret = jvalue.get_##ResultType(); \

  1708   return ret;\

  1709 JNI_END \

  1710 \

  1711 \

  1712 JNI_ENTRY(ResultType, \

  1713           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1714   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1715 \

  1716   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1717   ResultType ret = 0;\

  1718   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1719                      (const ResultType&)ret);\

  1720 \

  1721   JavaValue jvalue(Tag); \

  1722   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1723   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1724   ret = jvalue.get_##ResultType(); \

  1725   return ret;\

  1726 JNI_END \

  1727 \

  1728 \

  1729 JNI_ENTRY(ResultType, \

  1730           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1731   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1732   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1733   ResultType ret = 0;\

  1734   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1735                      (const ResultType&)ret);\

  1736 \

  1737   JavaValue jvalue(Tag); \

  1738   JNI_ArgumentPusherArray ap(methodID, args); \

  1739   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1740   ret = jvalue.get_##ResultType(); \

  1741   return ret;\

  1742 JNI_END

  1744 // the runtime type of subword integral basic types is integer

  1745 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1746 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1747 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1748 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1750 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1751 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1752 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1753 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1754 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1756 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1757 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1758 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1760 #else /* USDT2 */

  1762 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1763                           , EntryProbe, ReturnProbe)    \

  1764 \

  1765   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1766                           , ReturnProbe);                          \

  1767 \

  1768 JNI_ENTRY(ResultType, \

  1769           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1770   JNIWrapper("Call" XSTR(Result) "Method"); \

  1771 \

  1772   EntryProbe; \

  1773   ResultType ret = 0;\

  1774   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1775                      (const ResultType&)ret);\

  1776 \

  1777   va_list args; \

  1778   va_start(args, methodID); \

  1779   JavaValue jvalue(Tag); \

  1780   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1781   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1782   va_end(args); \

  1783   ret = jvalue.get_##ResultType(); \

  1784   return ret;\

  1785 JNI_END

  1787 // the runtime type of subword integral basic types is integer

  1788 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

  1789                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1790                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1791 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

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

  1793                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1794 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

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

  1796                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1797 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

  1798                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1799                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1801 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1802                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1803                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1804 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

  1805                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1806                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1807 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

  1808                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1809                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1810 // Float and double probes don't return value because dtrace doesn't currently support it

  1811 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

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

  1813                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1814 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

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

  1816                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1818 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1819                           , EntryProbe, ReturnProbe)    \

  1820 \

  1821   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1822                           , ReturnProbe);                          \

  1823 \

  1824 JNI_ENTRY(ResultType, \

  1825           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1826   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1827 \

  1828   EntryProbe;\

  1829   ResultType ret = 0;\

  1830   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1831                      (const ResultType&)ret);\

  1832 \

  1833   JavaValue jvalue(Tag); \

  1834   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1835   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1836   ret = jvalue.get_##ResultType(); \

  1837   return ret;\

  1838 JNI_END

  1840 // the runtime type of subword integral basic types is integer

  1841 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

  1842                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1843                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1844 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

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

  1846                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1847 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

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

  1849                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1850 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

  1851                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1852                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1854 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1855                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1856                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1857 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

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

  1859                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1860 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1862                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1863 // Float and double probes don't return value because dtrace doesn't currently support it

  1864 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

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

  1866                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1867 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

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

  1869                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1871 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1872                           , EntryProbe, ReturnProbe)    \

  1873 \

  1874   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1875                           , ReturnProbe);                          \

  1876 \

  1877 JNI_ENTRY(ResultType, \

  1878           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1879   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1880   EntryProbe; \

  1881   ResultType ret = 0;\

  1882   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1883                      (const ResultType&)ret);\

  1884 \

  1885   JavaValue jvalue(Tag); \

  1886   JNI_ArgumentPusherArray ap(methodID, args); \

  1887   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1888   ret = jvalue.get_##ResultType(); \

  1889   return ret;\

  1890 JNI_END

  1892 // the runtime type of subword integral basic types is integer

  1893 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

  1894                   , HOTSPOT_JNI_CALLBOOLEANMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1895                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1896 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

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

  1898                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1899 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

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

  1901                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1902 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

  1903                   , HOTSPOT_JNI_CALLSHORTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1904                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1906 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1907                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1908                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1909 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

  1910                   HOTSPOT_JNI_CALLINTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1911                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1912 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

  1913                   , HOTSPOT_JNI_CALLLONGMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1914                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1915 // Float and double probes don't return value because dtrace doesn't currently support it

  1916 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1917                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1918                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1919 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

  1920                   , HOTSPOT_JNI_CALLDOUBLEMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1921                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1923 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1924 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1925 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1927 #endif /* USDT2 */

  1929 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1930   JNIWrapper("CallVoidMethod");

  1931 #ifndef USDT2

  1932   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1933 #else /* USDT2 */

  1934   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1935                                    env, obj, (uintptr_t) methodID);

  1936 #endif /* USDT2 */

  1937   DT_VOID_RETURN_MARK(CallVoidMethod);

  1939   va_list args;

  1940   va_start(args, methodID);

  1941   JavaValue jvalue(T_VOID);

  1942   JNI_ArgumentPusherVaArg ap(methodID, args);

  1943   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1944   va_end(args);

  1945 JNI_END

  1948 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1949   JNIWrapper("CallVoidMethodV");

  1950 #ifndef USDT2

  1951   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1952 #else /* USDT2 */

  1953   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1954                                     env, obj, (uintptr_t) methodID);

  1955 #endif /* USDT2 */

  1956   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1958   JavaValue jvalue(T_VOID);

  1959   JNI_ArgumentPusherVaArg ap(methodID, args);

  1960   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1961 JNI_END

  1964 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1965   JNIWrapper("CallVoidMethodA");

  1966 #ifndef USDT2

  1967   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1968 #else /* USDT2 */

  1969   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1970                                     env, obj, (uintptr_t) methodID);

  1971 #endif /* USDT2 */

  1972   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1974   JavaValue jvalue(T_VOID);

  1975   JNI_ArgumentPusherArray ap(methodID, args);

  1976   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1977 JNI_END

  1980 #ifndef USDT2

  1981 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1982 \

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

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

  1985   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType);\

  1986 \

  1987 JNI_ENTRY(ResultType, \

  1988           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1989   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1990 \

  1991   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1992   ResultType ret;\

  1993   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1994                      (const ResultType&)ret);\

  1995 \

  1996   va_list args; \

  1997   va_start(args, methodID); \

  1998   JavaValue jvalue(Tag); \

  1999   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

  2001   va_end(args); \

  2002   ret = jvalue.get_##ResultType(); \

  2003   return ret;\

  2004 JNI_END \

  2005 \

  2006 JNI_ENTRY(ResultType, \

  2007           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2008   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  2009   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  2010   ResultType ret;\

  2011   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2012                      (const ResultType&)ret);\

  2013 \

  2014   JavaValue jvalue(Tag); \

  2015   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2016   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2017   ret = jvalue.get_##ResultType(); \

  2018   return ret;\

  2019 JNI_END \

  2020 \

  2021 JNI_ENTRY(ResultType, \

  2022           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2023   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2024   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  2025   ResultType ret;\

  2026   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2027                      (const ResultType&)ret);\

  2028 \

  2029   JavaValue jvalue(Tag); \

  2030   JNI_ArgumentPusherArray ap(methodID, args); \

  2031   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2032   ret = jvalue.get_##ResultType(); \

  2033   return ret;\

  2034 JNI_END

  2036 // the runtime type of subword integral basic types is integer

  2037 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2038 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2039 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2040 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2042 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2043 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2044 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2045 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2046 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2049 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2050 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2051 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2053 #else /* USDT2 */

  2055 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2056                                     , EntryProbe, ReturnProbe)      \

  2057 \

  2058   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2059                           , ReturnProbe);\

  2060 \

  2061 JNI_ENTRY(ResultType, \

  2062           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2063   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2064 \

  2065   EntryProbe;\

  2066   ResultType ret;\

  2067   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2068                      (const ResultType&)ret);\

  2069 \

  2070   va_list args; \

  2071   va_start(args, methodID); \

  2072   JavaValue jvalue(Tag); \

  2073   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2074   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2075   va_end(args); \

  2076   ret = jvalue.get_##ResultType(); \

  2077   return ret;\

  2078 JNI_END

  2080 // the runtime type of subword integral basic types is integer

  2081 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

  2082                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2083                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2084 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

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

  2086                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2087 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

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

  2089                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2090 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

  2091                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2092                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2094 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2095                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2096                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2097 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

  2098                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2099                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2100 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

  2101                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2102 // Float and double probes don't return value because dtrace doesn't currently support it

  2103                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2104 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

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

  2106                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2107 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

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

  2109                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2111 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2112                                     , EntryProbe, ReturnProbe)      \

  2113 \

  2114   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2115                           , ReturnProbe);\

  2116 \

  2117 JNI_ENTRY(ResultType, \

  2118           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2119   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2120 \

  2121   EntryProbe;\

  2122   ResultType ret;\

  2123   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2124                      (const ResultType&)ret);\

  2125 \

  2126   JavaValue jvalue(Tag); \

  2127   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2128   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2129   ret = jvalue.get_##ResultType(); \

  2130   return ret;\

  2131 JNI_END

  2133 // the runtime type of subword integral basic types is integer

  2134 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

  2135                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2136                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2137 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

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

  2139                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2140 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

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

  2142                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2143 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

  2144                             , HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2145                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2147 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2148                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2149                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2150 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

  2151                             , HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2152                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2153 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

  2154                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2155 // Float and double probes don't return value because dtrace doesn't currently support it

  2156                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2157 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

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

  2159                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2160 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

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

  2162                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2164 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2165                                     , EntryProbe, ReturnProbe)      \

  2166 \

  2167   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2168                           , ReturnProbe);\

  2169 \

  2170 JNI_ENTRY(ResultType, \

  2171           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2172   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2173 \

  2174   EntryProbe;\

  2175   ResultType ret;\

  2176   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2177                      (const ResultType&)ret);\

  2178 \

  2179   JavaValue jvalue(Tag); \

  2180   JNI_ArgumentPusherArray ap(methodID, args); \

  2181   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2182   ret = jvalue.get_##ResultType(); \

  2183   return ret;\

  2184 JNI_END

  2186 // the runtime type of subword integral basic types is integer

  2187 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

  2188                             , HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2189                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2190 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

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

  2192                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2193 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

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

  2195                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2196 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

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

  2198                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2200 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2201                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2202                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2203 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

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

  2205                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2206 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

  2207                             , HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2208 // Float and double probes don't return value because dtrace doesn't currently support it

  2209                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2210 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2211                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2212                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2213 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

  2214                             , HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2215                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2217 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2218                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2219 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2220                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2221 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2222                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2223 #endif /* USDT2 */

  2225 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2226   JNIWrapper("CallNonvirtualVoidMethod");

  2228 #ifndef USDT2

  2229   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2230                env, obj, cls, methodID);

  2231 #else /* USDT2 */

  2232   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2233                env, obj, cls, (uintptr_t) methodID);

  2234 #endif /* USDT2 */

  2235   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2237   va_list args;

  2238   va_start(args, methodID);

  2239   JavaValue jvalue(T_VOID);

  2240   JNI_ArgumentPusherVaArg ap(methodID, args);

  2241   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2242   va_end(args);

  2243 JNI_END

  2246 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2247   JNIWrapper("CallNonvirtualVoidMethodV");

  2249 #ifndef USDT2

  2250   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2251                env, obj, cls, methodID);

  2252 #else /* USDT2 */

  2253   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2254                env, obj, cls, (uintptr_t) methodID);

  2255 #endif /* USDT2 */

  2256   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2258   JavaValue jvalue(T_VOID);

  2259   JNI_ArgumentPusherVaArg ap(methodID, args);

  2260   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2261 JNI_END

  2264 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2265   JNIWrapper("CallNonvirtualVoidMethodA");

  2266 #ifndef USDT2

  2267   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2268                 env, obj, cls, methodID);

  2269 #else /* USDT2 */

  2270   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2271                 env, obj, cls, (uintptr_t) methodID);

  2272 #endif /* USDT2 */

  2273   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2274   JavaValue jvalue(T_VOID);

  2275   JNI_ArgumentPusherArray ap(methodID, args);

  2276   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2277 JNI_END

  2280 #ifndef USDT2

  2281 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2282 \

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

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

  2285   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType);\

  2286 \

  2287 JNI_ENTRY(ResultType, \

  2288           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2289   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2290 \

  2291   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2292   ResultType ret = 0;\

  2293   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2294                      (const ResultType&)ret);\

  2295 \

  2296   va_list args; \

  2297   va_start(args, methodID); \

  2298   JavaValue jvalue(Tag); \

  2299   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

  2301   va_end(args); \

  2302   ret = jvalue.get_##ResultType(); \

  2303   return ret;\

  2304 JNI_END \

  2305 \

  2306 JNI_ENTRY(ResultType, \

  2307           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2308   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2309   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2310   ResultType ret = 0;\

  2311   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2312                      (const ResultType&)ret);\

  2313 \

  2314   JavaValue jvalue(Tag); \

  2315   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2316   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2317   ret = jvalue.get_##ResultType(); \

  2318   return ret;\

  2319 JNI_END \

  2320 \

  2321 JNI_ENTRY(ResultType, \

  2322           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2323   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2324   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2325   ResultType ret = 0;\

  2326   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2327                      (const ResultType&)ret);\

  2328 \

  2329   JavaValue jvalue(Tag); \

  2330   JNI_ArgumentPusherArray ap(methodID, args); \

  2331   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2332   ret = jvalue.get_##ResultType(); \

  2333   return ret;\

  2334 JNI_END

  2336 // the runtime type of subword integral basic types is integer

  2337 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2338 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2339 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2340 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2342 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2343 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2344 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2345 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2346 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2349 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2350 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2351 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2353 #else /* USDT2 */

  2355 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2356                                 , EntryProbe, ResultProbe) \

  2357 \

  2358   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2359                           , ResultProbe);                               \

  2360 \

  2361 JNI_ENTRY(ResultType, \

  2362           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2363   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2364 \

  2365   EntryProbe; \

  2366   ResultType ret = 0;\

  2367   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2368                      (const ResultType&)ret);\

  2369 \

  2370   va_list args; \

  2371   va_start(args, methodID); \

  2372   JavaValue jvalue(Tag); \

  2373   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2374   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2375   va_end(args); \

  2376   ret = jvalue.get_##ResultType(); \

  2377   return ret;\

  2378 JNI_END

  2380 // the runtime type of subword integral basic types is integer

  2381 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

  2382                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2383                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2384 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

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

  2386                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2387 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

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

  2389                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2390 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

  2391                         , HOTSPOT_JNI_CALLSTATICSHORTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2392                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2394 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2395                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2396                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2397 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

  2398                         , HOTSPOT_JNI_CALLSTATICINTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2399                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2400 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

  2401                         , HOTSPOT_JNI_CALLSTATICLONGMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2402                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2403 // Float and double probes don't return value because dtrace doesn't currently support it

  2404 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2405                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2406                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2407 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

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

  2409                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2411 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2412                                 , EntryProbe, ResultProbe) \

  2413 \

  2414   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2415                           , ResultProbe);                               \

  2416 \

  2417 JNI_ENTRY(ResultType, \

  2418           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2419   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2420 \

  2421   EntryProbe; \

  2422   ResultType ret = 0;\

  2423   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2424                      (const ResultType&)ret);\

  2425 \

  2426   JavaValue jvalue(Tag); \

  2427   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2428   /* Make sure class is initialized before trying to invoke its method */ \

  2429   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2430   k()->initialize(CHECK_0); \

  2431   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2432   va_end(args); \

  2433   ret = jvalue.get_##ResultType(); \

  2434   return ret;\

  2435 JNI_END

  2437 // the runtime type of subword integral basic types is integer

  2438 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

  2439                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2440                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2441 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

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

  2443                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2444 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

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

  2446                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2447 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

  2448                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2449                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2451 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2452                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2453                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2454 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

  2455                         , HOTSPOT_JNI_CALLSTATICINTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2456                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2457 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

  2458                         , HOTSPOT_JNI_CALLSTATICLONGMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2459                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2460 // Float and double probes don't return value because dtrace doesn't currently support it

  2461 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

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

  2463                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2464 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

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

  2466                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2468 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2469                                 , EntryProbe, ResultProbe) \

  2470 \

  2471   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2472                           , ResultProbe);                               \

  2473 \

  2474 JNI_ENTRY(ResultType, \

  2475           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2476   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2477 \

  2478   EntryProbe; \

  2479   ResultType ret = 0;\

  2480   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2481                      (const ResultType&)ret);\

  2482 \

  2483   JavaValue jvalue(Tag); \

  2484   JNI_ArgumentPusherArray ap(methodID, args); \

  2485   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2486   ret = jvalue.get_##ResultType(); \

  2487   return ret;\

  2488 JNI_END

  2490 // the runtime type of subword integral basic types is integer

  2491 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

  2492                         , HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2493                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2494 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

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

  2496                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2497 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

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

  2499                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2500 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

  2501                         , HOTSPOT_JNI_CALLSTATICSHORTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2502                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2504 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2505                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2506                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2507 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

  2508                         , HOTSPOT_JNI_CALLSTATICINTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2509                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2510 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

  2511                         , HOTSPOT_JNI_CALLSTATICLONGMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2512                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2513 // Float and double probes don't return value because dtrace doesn't currently support it

  2514 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2515                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2516                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2517 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

  2518                         , HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2519                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2521 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2522                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2523 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2524                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2525 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2526                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2527 #endif /* USDT2 */

  2529 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2530   JNIWrapper("CallStaticVoidMethod");

  2531 #ifndef USDT2

  2532   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2533 #else /* USDT2 */

  2534   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2535                                          env, cls, (uintptr_t) methodID);

  2536 #endif /* USDT2 */

  2537   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2539   va_list args;

  2540   va_start(args, methodID);

  2541   JavaValue jvalue(T_VOID);

  2542   JNI_ArgumentPusherVaArg ap(methodID, args);

  2543   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2544   va_end(args);

  2545 JNI_END

  2548 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2549   JNIWrapper("CallStaticVoidMethodV");

  2550 #ifndef USDT2

  2551   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2552 #else /* USDT2 */

  2553   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2554                                           env, cls, (uintptr_t) methodID);

  2555 #endif /* USDT2 */

  2556   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2558   JavaValue jvalue(T_VOID);

  2559   JNI_ArgumentPusherVaArg ap(methodID, args);

  2560   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2561 JNI_END

  2564 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2565   JNIWrapper("CallStaticVoidMethodA");

  2566 #ifndef USDT2

  2567   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2568 #else /* USDT2 */

  2569   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2570                                           env, cls, (uintptr_t) methodID);

  2571 #endif /* USDT2 */

  2572   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2574   JavaValue jvalue(T_VOID);

  2575   JNI_ArgumentPusherArray ap(methodID, args);

  2576   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2577 JNI_END

  2580 //

  2581 // Accessing Fields

  2582 //

  2585 #ifndef USDT2

  2586 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2587 #else /* USDT2 */

  2588 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2589                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2590 #endif /* USDT2 */

  2592 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2593           const char *name, const char *sig))

  2594   JNIWrapper("GetFieldID");

  2595 #ifndef USDT2

  2596   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2597 #else /* USDT2 */

  2598   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2599                                env, clazz, (char *) name, (char *) sig);

  2600 #endif /* USDT2 */

  2601   jfieldID ret = 0;

  2602   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2604   // The class should have been loaded (we have an instance of the class

  2605   // passed in) so the field and signature should already be in the symbol

  2606   // table.  If they're not there, the field doesn't exist.

  2607   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2608   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2609   if (fieldname == NULL || signame == NULL) {

  2610     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2611   }

  2612   KlassHandle k(THREAD,

  2613                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2614   // Make sure class is initialized before handing id's out to fields

  2615   k()->initialize(CHECK_NULL);

  2617   fieldDescriptor fd;

  2618   if (!k()->oop_is_instance() ||

  2619       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2620     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2621   }

  2623   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2624   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2625   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2626   return ret;

  2627 JNI_END

  2630 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2631   JNIWrapper("GetObjectField");

  2632 #ifndef USDT2

  2633   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2634 #else /* USDT2 */

  2635   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2636                                    env, obj, (uintptr_t) fieldID);

  2637 #endif /* USDT2 */

  2638   oop o = JNIHandles::resolve_non_null(obj);

  2639   Klass* k = o->klass();

  2640   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2641   // Keep JVMTI addition small and only check enabled flag here.

  2642   // jni_GetField_probe() assumes that is okay to create handles.

  2643   if (JvmtiExport::should_post_field_access()) {

  2644     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2645   }

  2646   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2647 #ifndef SERIALGC

  2648   // If G1 is enabled and we are accessing the value of the referent

  2649   // field in a reference object then we need to register a non-null

  2650   // referent with the SATB barrier.

  2651   if (UseG1GC) {

  2652     bool needs_barrier = false;

  2654     if (ret != NULL &&

  2655         offset == java_lang_ref_Reference::referent_offset &&

  2656         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2657       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2658       needs_barrier = true;

  2659     }

  2661     if (needs_barrier) {

  2662       oop referent = JNIHandles::resolve(ret);

  2663       G1SATBCardTableModRefBS::enqueue(referent);

  2664     }

  2665   }

  2666 #endif // SERIALGC

  2667 #ifndef USDT2

  2668   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2669 #else /* USDT2 */

  2670 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2671                                   ret);

  2672 #endif /* USDT2 */

  2673   return ret;

  2674 JNI_END

  2677 #ifndef USDT2

  2678 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2679 \

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

  2681 \

  2682 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2683   JNIWrapper("Get" XSTR(Result) "Field"); \

  2684 \

  2685   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2686   Return ret = 0;\

  2687   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2688 \

  2689   oop o = JNIHandles::resolve_non_null(obj); \

  2690   Klass* k = o->klass(); \

  2691   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2692   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2693   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2694   /* and creates a ResetNoHandleMark.                                   */ \

  2695   if (JvmtiExport::should_post_field_access()) { \

  2696     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2697   } \

  2698   ret = o->Fieldname##_field(offset); \

  2699   return ret; \

  2700 JNI_END

  2702 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2703 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2704 DEFINE_GETFIELD(jchar,    char,   Char)

  2705 DEFINE_GETFIELD(jshort,   short,  Short)

  2706 DEFINE_GETFIELD(jint,     int,    Int)

  2707 DEFINE_GETFIELD(jlong,    long,   Long)

  2708 DEFINE_GETFIELD(jfloat,   float,  Float)

  2709 DEFINE_GETFIELD(jdouble,  double, Double)

  2711 #else /* USDT2 */

  2713 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2714   , EntryProbe, ReturnProbe) \

  2715 \

  2716   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2717   , ReturnProbe); \

  2718 \

  2719 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2720   JNIWrapper("Get" XSTR(Result) "Field"); \

  2721 \

  2722   EntryProbe; \

  2723   Return ret = 0;\

  2724   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2725 \

  2726   oop o = JNIHandles::resolve_non_null(obj); \

  2727   Klass* k = o->klass(); \

  2728   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2729   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2730   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2731   /* and creates a ResetNoHandleMark.                                   */ \

  2732   if (JvmtiExport::should_post_field_access()) { \

  2733     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2734   } \

  2735   ret = o->Fieldname##_field(offset); \

  2736   return ret; \

  2737 JNI_END

  2739 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2740                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2741                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2742 DEFINE_GETFIELD(jbyte,    byte,   Byte

  2743                 , HOTSPOT_JNI_GETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2744                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2745 DEFINE_GETFIELD(jchar,    char,   Char

  2746                 , HOTSPOT_JNI_GETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2747                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2748 DEFINE_GETFIELD(jshort,   short,  Short

  2749                 , HOTSPOT_JNI_GETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2750                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2751 DEFINE_GETFIELD(jint,     int,    Int

  2752                 , HOTSPOT_JNI_GETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2753                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2754 DEFINE_GETFIELD(jlong,    long,   Long

  2755                 , HOTSPOT_JNI_GETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2756                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2757 // Float and double probes don't return value because dtrace doesn't currently support it

  2758 DEFINE_GETFIELD(jfloat,   float,  Float

  2759                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2760                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2761 DEFINE_GETFIELD(jdouble,  double, Double

  2762                 , HOTSPOT_JNI_GETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2763                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2764 #endif /* USDT2 */

  2766 address jni_GetBooleanField_addr() {

  2767   return (address)jni_GetBooleanField;

  2768 }

  2769 address jni_GetByteField_addr() {

  2770   return (address)jni_GetByteField;

  2771 }

  2772 address jni_GetCharField_addr() {

  2773   return (address)jni_GetCharField;

  2774 }

  2775 address jni_GetShortField_addr() {

  2776   return (address)jni_GetShortField;

  2777 }

  2778 address jni_GetIntField_addr() {

  2779   return (address)jni_GetIntField;

  2780 }

  2781 address jni_GetLongField_addr() {

  2782   return (address)jni_GetLongField;

  2783 }

  2784 address jni_GetFloatField_addr() {

  2785   return (address)jni_GetFloatField;

  2786 }

  2787 address jni_GetDoubleField_addr() {

  2788   return (address)jni_GetDoubleField;

  2789 }

  2791 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2792   JNIWrapper("SetObjectField");

  2793 #ifndef USDT2

  2794   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2795 #else /* USDT2 */

  2796   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2797                                    env, obj, (uintptr_t) fieldID, value);

  2798 #endif /* USDT2 */

  2799   oop o = JNIHandles::resolve_non_null(obj);

  2800   Klass* k = o->klass();

  2801   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2802   // Keep JVMTI addition small and only check enabled flag here.

  2803   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2804   // and creates a ResetNoHandleMark.

  2805   if (JvmtiExport::should_post_field_modification()) {

  2806     jvalue field_value;

  2807     field_value.l = value;

  2808     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2809   }

  2810   o->obj_field_put(offset, JNIHandles::resolve(value));

  2811 #ifndef USDT2

  2812   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2813 #else /* USDT2 */

  2814   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2815 );

  2816 #endif /* USDT2 */

  2817 JNI_END

  2819 #ifndef USDT2

  2820 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2821 \

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

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

  2824 \

  2825   FP_SELECT_##Result( \

  2826     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2827     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2828 \

  2829   oop o = JNIHandles::resolve_non_null(obj); \

  2830   Klass* k = o->klass(); \

  2831   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2832   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2833   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2834   /* and creates a ResetNoHandleMark.                                   */ \

  2835   if (JvmtiExport::should_post_field_modification()) { \

  2836     jvalue field_value; \

  2837     field_value.unionType = value; \

  2838     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2839   } \

  2840   o->Fieldname##_field_put(offset, value); \

  2841   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2842 JNI_END

  2844 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

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

  2846 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2847 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2848 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2849 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2850 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2851 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2853 #else /* USDT2 */

  2855 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2856                         , EntryProbe, ReturnProbe) \

  2857 \

  2858 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2859   JNIWrapper("Set" XSTR(Result) "Field"); \

  2860 \

  2861   EntryProbe; \

  2862 \

  2863   oop o = JNIHandles::resolve_non_null(obj); \

  2864   Klass* k = o->klass(); \

  2865   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2866   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2867   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2868   /* and creates a ResetNoHandleMark.                                   */ \

  2869   if (JvmtiExport::should_post_field_modification()) { \

  2870     jvalue field_value; \

  2871     field_value.unionType = value; \

  2872     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2873   } \

  2874   o->Fieldname##_field_put(offset, value); \

  2875   ReturnProbe; \

  2876 JNI_END

  2878 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2879                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2880                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2881 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

  2882                 , HOTSPOT_JNI_SETBYTEFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2883                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2884 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

  2885                 , HOTSPOT_JNI_SETCHARFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2886                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2887 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

  2888                 , HOTSPOT_JNI_SETSHORTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2889                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2890 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

  2891                 , HOTSPOT_JNI_SETINTFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2892                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2893 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

  2894                 , HOTSPOT_JNI_SETLONGFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2895                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2896 // Float and double probes don't return value because dtrace doesn't currently support it

  2897 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2898                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2899                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2900 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

  2901                 , HOTSPOT_JNI_SETDOUBLEFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2902                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2903 #endif /* USDT2 */

  2905 #ifndef USDT2

  2906 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2907 #else /* USDT2 */

  2908 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2909                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2910 #endif /* USDT2 */

  2912 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2913   JNIWrapper("ToReflectedField");

  2914 #ifndef USDT2

  2915   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2916                 env, cls, fieldID, isStatic);

  2917 #else /* USDT2 */

  2918   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2919                 env, cls, (uintptr_t) fieldID, isStatic);

  2920 #endif /* USDT2 */

  2921   jobject ret = NULL;

  2922   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2924   fieldDescriptor fd;

  2925   bool found = false;

  2926   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2928   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2930   if (isStatic) {

  2931     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2932     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2933     assert(id->is_static_field_id(), "invalid static field id");

  2934     found = id->find_local_field(&fd);

  2935   } else {

  2936     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2937     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2938     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2939   }

  2940   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2941   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2942   ret = JNIHandles::make_local(env, reflected);

  2943   return ret;

  2944 JNI_END

  2947 //

  2948 // Accessing Static Fields

  2949 //

  2950 #ifndef USDT2

  2951 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2952 #else /* USDT2 */

  2953 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2954                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2955 #endif /* USDT2 */

  2957 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2958           const char *name, const char *sig))

  2959   JNIWrapper("GetStaticFieldID");

  2960 #ifndef USDT2

  2961   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2962 #else /* USDT2 */

  2963   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2964                                      env, clazz, (char *) name, (char *) sig);

  2965 #endif /* USDT2 */

  2966   jfieldID ret = NULL;

  2967   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2969   // The class should have been loaded (we have an instance of the class

  2970   // passed in) so the field and signature should already be in the symbol

  2971   // table.  If they're not there, the field doesn't exist.

  2972   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2973   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2974   if (fieldname == NULL || signame == NULL) {

  2975     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2976   }

  2977   KlassHandle k(THREAD,

  2978                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2979   // Make sure class is initialized before handing id's out to static fields

  2980   k()->initialize(CHECK_NULL);

  2982   fieldDescriptor fd;

  2983   if (!k()->oop_is_instance() ||

  2984       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2985     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2986   }

  2988   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2989   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2990   debug_only(id->set_is_static_field_id();)

  2992   debug_only(id->verify(fd.field_holder()));

  2994   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2995   return ret;

  2996 JNI_END

  2999 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  3000   JNIWrapper("GetStaticObjectField");

  3001 #ifndef USDT2

  3002   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  3003 #else /* USDT2 */

  3004   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  3005                                          env, clazz, (uintptr_t) fieldID);

  3006 #endif /* USDT2 */

  3007 #if INCLUDE_JNI_CHECK

  3008   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  3009 #endif // INCLUDE_JNI_CHECK

  3010   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3011   assert(id->is_static_field_id(), "invalid static field id");

  3012   // Keep JVMTI addition small and only check enabled flag here.

  3013   // jni_GetField_probe() assumes that is okay to create handles.

  3014   if (JvmtiExport::should_post_field_access()) {

  3015     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  3016   }

  3017   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  3018 #ifndef USDT2

  3019   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  3020 #else /* USDT2 */

  3021   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  3022                                           ret);

  3023 #endif /* USDT2 */

  3024   return ret;

  3025 JNI_END

  3027 #ifndef USDT2

  3028 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  3029 \

  3030   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3031 \

  3032 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3033   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3034   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3035   Return ret = 0;\

  3036   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3037                      (const Return&)ret);\

  3038   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3039   assert(id->is_static_field_id(), "invalid static field id"); \

  3040   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3041   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3042   if (JvmtiExport::should_post_field_access()) { \

  3043     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3044   } \

  3045   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3046   return ret;\

  3047 JNI_END

  3049 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3050 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3051 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3052 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3053 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3054 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3055 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3056 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3058 #else /* USDT2 */

  3060 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3061                               , EntryProbe, ReturnProbe) \

  3062 \

  3063   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3064                           , ReturnProbe);                                          \

  3065 \

  3066 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3067   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3068   EntryProbe; \

  3069   Return ret = 0;\

  3070   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3071                      (const Return&)ret);\

  3072   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3073   assert(id->is_static_field_id(), "invalid static field id"); \

  3074   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3075   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3076   if (JvmtiExport::should_post_field_access()) { \

  3077     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3078   } \

  3079   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3080   return ret;\

  3081 JNI_END

  3083 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3084                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3085 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3086                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3087 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3088                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3089 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3090                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3091 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3092                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3093 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3094                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3095 // Float and double probes don't return value because dtrace doesn't currently support it

  3096 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3097                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3098 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3099                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3100 #endif /* USDT2 */

  3102 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3103   JNIWrapper("SetStaticObjectField");

  3104 #ifndef USDT2

  3105   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3106 #else /* USDT2 */

  3107  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3108                                         env, clazz, (uintptr_t) fieldID, value);

  3109 #endif /* USDT2 */

  3110   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3111   assert(id->is_static_field_id(), "invalid static field id");

  3112   // Keep JVMTI addition small and only check enabled flag here.

  3113   // jni_SetField_probe() assumes that is okay to create handles.

  3114   if (JvmtiExport::should_post_field_modification()) {

  3115     jvalue field_value;

  3116     field_value.l = value;

  3117     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3118   }

  3119   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3120 #ifndef USDT2

  3121   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3122 #else /* USDT2 */

  3123   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3124                                           );

  3125 #endif /* USDT2 */

  3126 JNI_END

  3129 #ifndef USDT2

  3130 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3131 \

  3132 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3133   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3134   FP_SELECT_##Result( \

  3135      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3136      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3137 \

  3138   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3139   assert(id->is_static_field_id(), "invalid static field id"); \

  3140   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3141   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3142   if (JvmtiExport::should_post_field_modification()) { \

  3143     jvalue field_value; \

  3144     field_value.unionType = value; \

  3145     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3146   } \

  3147   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3148   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3149 JNI_END

  3151 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3152 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3153 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3154 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3155 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3156 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3157 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3158 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3160 #else /* USDT2 */

  3162 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3163                               , EntryProbe, ReturnProbe) \

  3164 \

  3165 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3166   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3167   EntryProbe; \

  3168 \

  3169   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3170   assert(id->is_static_field_id(), "invalid static field id"); \

  3171   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3172   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3173   if (JvmtiExport::should_post_field_modification()) { \

  3174     jvalue field_value; \

  3175     field_value.unionType = value; \

  3176     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3177   } \

  3178   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3179   ReturnProbe;\

  3180 JNI_END

  3182 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3183                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3184                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3185 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3186                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3187                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3188 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3189                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3190                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3191 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3192                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3193                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3194 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3195                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3196                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3197 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3198                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3199                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3200 // Float and double probes don't return value because dtrace doesn't currently support it

  3201 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3202                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3203                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3204 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3205                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3206                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3207 #endif /* USDT2 */

  3209 //

  3210 // String Operations

  3211 //

  3213 // Unicode Interface

  3215 #ifndef USDT2

  3216 DT_RETURN_MARK_DECL(NewString, jstring);

  3217 #else /* USDT2 */

  3218 DT_RETURN_MARK_DECL(NewString, jstring

  3219                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3220 #endif /* USDT2 */

  3222 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3223   JNIWrapper("NewString");

  3224 #ifndef USDT2

  3225   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3226 #else /* USDT2 */

  3227  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3228                              env, (uint16_t *) unicodeChars, len);

  3229 #endif /* USDT2 */

  3230   jstring ret = NULL;

  3231   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3232   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3233   ret = (jstring) JNIHandles::make_local(env, string);

  3234   return ret;

  3235 JNI_END

  3238 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3239   JNIWrapper("GetStringLength");

  3240 #ifndef USDT2

  3241   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3242 #else /* USDT2 */

  3243   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3244                                     env, string);

  3245 #endif /* USDT2 */

  3246   jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string));

  3247 #ifndef USDT2

  3248   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3249 #else /* USDT2 */

  3250  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3251                                     ret);

  3252 #endif /* USDT2 */

  3253   return ret;

  3254 JNI_END

  3257 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3258   JNIEnv *env, jstring string, jboolean *isCopy))

  3259   JNIWrapper("GetStringChars");

  3260 #ifndef USDT2

  3261   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3262 #else /* USDT2 */

  3263  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3264                                   env, string, (uintptr_t *) isCopy);

  3265 #endif /* USDT2 */

  3266   //%note jni_5

  3267   if (isCopy != NULL) {

  3268     *isCopy = JNI_TRUE;

  3269   }

  3270   oop s = JNIHandles::resolve_non_null(string);

  3271   int s_len = java_lang_String::length(s);

  3272   typeArrayOop s_value = java_lang_String::value(s);

  3273   int s_offset = java_lang_String::offset(s);

  3274   jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3275   if (s_len > 0) {

  3276     memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3277   }

  3278   buf[s_len] = 0;

  3279 #ifndef USDT2

  3280   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3281 #else /* USDT2 */

  3282   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3283                                     buf);

  3284 #endif /* USDT2 */

  3285   return buf;

  3286 JNI_END

  3289 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3290   JNIWrapper("ReleaseStringChars");

  3291 #ifndef USDT2

  3292   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3293 #else /* USDT2 */

  3294   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3295                                        env, str, (uint16_t *) chars);

  3296 #endif /* USDT2 */

  3297   //%note jni_6

  3298   if (chars != NULL) {

  3299     // Since String objects are supposed to be immutable, don't copy any

  3300     // new data back.  A bad user will have to go after the char array.

  3301     FreeHeap((void*) chars);

  3302   }

  3303 #ifndef USDT2

  3304   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3305 #else /* USDT2 */

  3306   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3307 );

  3308 #endif /* USDT2 */

  3309 JNI_END

  3312 // UTF Interface

  3314 #ifndef USDT2

  3315 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3316 #else /* USDT2 */

  3317 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3318                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3319 #endif /* USDT2 */

  3321 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3322   JNIWrapper("NewStringUTF");

  3323 #ifndef USDT2

  3324   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3325 #else /* USDT2 */

  3326   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3327                                  env, (char *) bytes);

  3328 #endif /* USDT2 */

  3329   jstring ret;

  3330   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3332   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3333   ret = (jstring) JNIHandles::make_local(env, result);

  3334   return ret;

  3335 JNI_END

  3338 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3339   JNIWrapper("GetStringUTFLength");

  3340 #ifndef USDT2

  3341   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3342 #else /* USDT2 */

  3343  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3344                                       env, string);

  3345 #endif /* USDT2 */

  3346   jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string));

  3347 #ifndef USDT2

  3348   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3349 #else /* USDT2 */

  3350   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3351                                         ret);

  3352 #endif /* USDT2 */

  3353   return ret;

  3354 JNI_END

  3357 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3358   JNIWrapper("GetStringUTFChars");

  3359 #ifndef USDT2

  3360   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3361 #else /* USDT2 */

  3362  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3363                                      env, string, (uintptr_t *) isCopy);

  3364 #endif /* USDT2 */

  3365   oop java_string = JNIHandles::resolve_non_null(string);

  3366   size_t length = java_lang_String::utf8_length(java_string);

  3367   char* result = AllocateHeap(length + 1, mtInternal);

  3368   java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3369   if (isCopy != NULL) *isCopy = JNI_TRUE;

  3370 #ifndef USDT2

  3371   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3372 #else /* USDT2 */

  3373  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3374                                       result);

  3375 #endif /* USDT2 */

  3376   return result;

  3377 JNI_END

  3380 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3381   JNIWrapper("ReleaseStringUTFChars");

  3382 #ifndef USDT2

  3383   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3384 #else /* USDT2 */

  3385  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3386                                          env, str, (char *) chars);

  3387 #endif /* USDT2 */

  3388   if (chars != NULL) {

  3389     FreeHeap((char*) chars);

  3390   }

  3391 #ifndef USDT2

  3392   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3393 #else /* USDT2 */

  3394 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3395 );

  3396 #endif /* USDT2 */

  3397 JNI_END

  3400 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3401   JNIWrapper("GetArrayLength");

  3402 #ifndef USDT2

  3403   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3404 #else /* USDT2 */

  3405  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3406                                   env, array);

  3407 #endif /* USDT2 */

  3408   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3409   assert(a->is_array(), "must be array");

  3410   jsize ret = a->length();

  3411 #ifndef USDT2

  3412   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3413 #else /* USDT2 */

  3414  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3415                                    ret);

  3416 #endif /* USDT2 */

  3417   return ret;

  3418 JNI_END

  3421 //

  3422 // Object Array Operations

  3423 //

  3425 #ifndef USDT2

  3426 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3427 #else /* USDT2 */

  3428 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3429                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3430 #endif /* USDT2 */

  3432 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3433   JNIWrapper("NewObjectArray");

  3434 #ifndef USDT2

  3435   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3436 #else /* USDT2 */

  3437  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3438                                   env, length, elementClass, initialElement);

  3439 #endif /* USDT2 */

  3440   jobjectArray ret = NULL;

  3441   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3442   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3443   Klass* ako = ek()->array_klass(CHECK_NULL);

  3444   KlassHandle ak = KlassHandle(THREAD, ako);

  3445   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3446   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3447   oop initial_value = JNIHandles::resolve(initialElement);

  3448   if (initial_value != NULL) {  // array already initialized with NULL

  3449     for (int index = 0; index < length; index++) {

  3450       result->obj_at_put(index, initial_value);

  3451     }

  3452   }

  3453   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3454   return ret;

  3455 JNI_END

  3457 #ifndef USDT2

  3458 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3459 #else /* USDT2 */

  3460 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3461                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3462 #endif /* USDT2 */

  3464 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3465   JNIWrapper("GetObjectArrayElement");

  3466 #ifndef USDT2

  3467   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3468 #else /* USDT2 */

  3469  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3470                                          env, array, index);

  3471 #endif /* USDT2 */

  3472   jobject ret = NULL;

  3473   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3474   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3475   if (a->is_within_bounds(index)) {

  3476     ret = JNIHandles::make_local(env, a->obj_at(index));

  3477     return ret;

  3478   } else {

  3479     char buf[jintAsStringSize];

  3480     sprintf(buf, "%d", index);

  3481     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3482   }

  3483 JNI_END

  3485 #ifndef USDT2

  3486 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3487 #else /* USDT2 */

  3488 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3489                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3490 #endif /* USDT2 */

  3492 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3493   JNIWrapper("SetObjectArrayElement");

  3494 #ifndef USDT2

  3495   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3496 #else /* USDT2 */

  3497  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3498                                          env, array, index, value);

  3499 #endif /* USDT2 */

  3500   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3502   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3503   oop v = JNIHandles::resolve(value);

  3504   if (a->is_within_bounds(index)) {

  3505     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3506       a->obj_at_put(index, v);

  3507     } else {

  3508       THROW(vmSymbols::java_lang_ArrayStoreException());

  3509     }

  3510   } else {

  3511     char buf[jintAsStringSize];

  3512     sprintf(buf, "%d", index);

  3513     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3514   }

  3515 JNI_END

  3518 #ifndef USDT2

  3519 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3520 \

  3521   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3522 \

  3523 JNI_ENTRY(Return, \

  3524           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3525   JNIWrapper("New" XSTR(Result) "Array"); \

  3526   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3527   Return ret = NULL;\

  3528   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3529 \

  3530   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3531   ret = (Return) JNIHandles::make_local(env, obj); \

  3532   return ret;\

  3533 JNI_END

  3535 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3536 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3537 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3538 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3539 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3540 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3541 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3542 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3544 #else /* USDT2 */

  3546 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3547                               ,EntryProbe,ReturnProbe)  \

  3548 \

  3549   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3550                       , ReturnProbe); \

  3551 \

  3552 JNI_ENTRY(Return, \

  3553           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3554   JNIWrapper("New" XSTR(Result) "Array"); \

  3555   EntryProbe; \

  3556   Return ret = NULL;\

  3557   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3558 \

  3559   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3560   ret = (Return) JNIHandles::make_local(env, obj); \

  3561   return ret;\

  3562 JNI_END

  3564 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3565                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3566                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3567 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3568                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3569                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3570 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3571                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3572                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3573 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3574                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3575                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3576 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3577                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3578                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3579 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3580                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3581                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3582 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3583                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3584                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3585 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3586                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3587                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3588 #endif /* USDT2 */

  3590 // Return an address which will fault if the caller writes to it.

  3592 static char* get_bad_address() {

  3593   static char* bad_address = NULL;

  3594   if (bad_address == NULL) {

  3595     size_t size = os::vm_allocation_granularity();

  3596     bad_address = os::reserve_memory(size);

  3597     if (bad_address != NULL) {

  3598       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3599                          /*is_committed*/false);

  3600     }

  3601   }

  3602   return bad_address;

  3603 }

  3606 #ifndef USDT2

  3607 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3608 \

  3609 JNI_QUICK_ENTRY(ElementType*, \

  3610           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3611   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3612   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3613   /* allocate an chunk of memory in c land */ \

  3614   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3615   ElementType* result; \

  3616   int len = a->length(); \

  3617   if (len == 0) { \

  3618     /* Empty array: legal but useless, can't return NULL. \

  3619      * Return a pointer to something useless. \

  3620      * Avoid asserts in typeArrayOop. */ \

  3621     result = (ElementType*)get_bad_address(); \

  3622   } else { \

  3623     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3624     /* copy the array to the c chunk */ \

  3625     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3626   } \

  3627   if (isCopy) *isCopy = JNI_TRUE; \

  3628   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3629   return result; \

  3630 JNI_END

  3632 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3633 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3634 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3635 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3636 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3637 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3638 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3639 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3641 #else /* USDT2 */

  3643 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3644                                       , EntryProbe, ReturnProbe) \

  3645 \

  3646 JNI_QUICK_ENTRY(ElementType*, \

  3647           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3648   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3649   EntryProbe; \

  3650   /* allocate an chunk of memory in c land */ \

  3651   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3652   ElementType* result; \

  3653   int len = a->length(); \

  3654   if (len == 0) { \

  3655     /* Empty array: legal but useless, can't return NULL. \

  3656      * Return a pointer to something useless. \

  3657      * Avoid asserts in typeArrayOop. */ \

  3658     result = (ElementType*)get_bad_address(); \

  3659   } else { \

  3660     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3661     /* copy the array to the c chunk */ \

  3662     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3663   } \

  3664   if (isCopy) *isCopy = JNI_TRUE; \

  3665   ReturnProbe; \

  3666   return result; \

  3667 JNI_END

  3669 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3670                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3671                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3672 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3673                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3674                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3675 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3676                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3677                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3678 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3679                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3680                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3681 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3682                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3683                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3684 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3685                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3686                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3687 // Float and double probes don't return value because dtrace doesn't currently support it

  3688 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3689                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3690                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3691 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3692                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3693                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3694 #endif /* USDT2 */

  3696 #ifndef USDT2

  3697 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3698 \

  3699 JNI_QUICK_ENTRY(void, \

  3700           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3701                                              ElementType *buf, jint mode)) \

  3702   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3703   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3704   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3705   int len = a->length(); \

  3706   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3707     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3708       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3709     } \

  3710     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3711       FreeHeap(buf); \

  3712     } \

  3713   } \

  3714   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3715 JNI_END

  3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3722 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3723 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3724 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3726 #else /* USDT2 */

  3728 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3729                                           , EntryProbe, ReturnProbe);\

  3730 \

  3731 JNI_QUICK_ENTRY(void, \

  3732           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3733                                              ElementType *buf, jint mode)) \

  3734   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3735   EntryProbe; \

  3736   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3737   int len = a->length(); \

  3738   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3739     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3740       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3741     } \

  3742     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3743       FreeHeap(buf); \

  3744     } \

  3745   } \

  3746   ReturnProbe; \

  3747 JNI_END

  3749 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3750                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3751                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3752 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3753                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3754                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3755 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3756                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3757                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3758 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3759                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3760                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3761 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3762                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3763                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3764 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3765                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3766                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3767 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3768                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3769                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3770 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3771                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3772                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3773 #endif /* USDT2 */

  3775 #ifndef USDT2

  3776 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3777   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3778 \

  3779 JNI_ENTRY(void, \

  3780 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3781              jsize len, ElementType *buf)) \

  3782   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3783   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3784   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3785   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3786   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3787     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3788   } else { \

  3789     if (len > 0) { \

  3790       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3791       memcpy((u_char*) buf, \

  3792              (u_char*) src->Tag##_at_addr(start), \

  3793              len << sc);                          \

  3794     } \

  3795   } \

  3796 JNI_END

  3798 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3799 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3800 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3801 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3802 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3803 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3804 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3805 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3807 #else /* USDT2 */

  3809 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3810                                     , EntryProbe, ReturnProbe); \

  3811   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3812                            , ReturnProbe); \

  3813 \

  3814 JNI_ENTRY(void, \

  3815 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3816              jsize len, ElementType *buf)) \

  3817   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3818   EntryProbe; \

  3819   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3820   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3821   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3822     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3823   } else { \

  3824     if (len > 0) { \

  3825       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3826       memcpy((u_char*) buf, \

  3827              (u_char*) src->Tag##_at_addr(start), \

  3828              len << sc);                          \

  3829     } \

  3830   } \

  3831 JNI_END

  3833 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3834                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3835                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3836 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3837                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3838                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3839 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3840                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3841                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3842 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3843                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3844                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3845 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3846                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3847                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3848 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3849                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3850                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3851 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3852                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3853                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3854 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3855                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3856                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3857 #endif /* USDT2 */

  3859 #ifndef USDT2

  3860 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3861   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3862 \

  3863 JNI_ENTRY(void, \

  3864 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3865              jsize len, const ElementType *buf)) \

  3866   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3867   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3868   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3869   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3870   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3871     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3872   } else { \

  3873     if (len > 0) { \

  3874       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3875       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3876              (u_char*) buf, \

  3877              len << sc);    \

  3878     } \

  3879   } \

  3880 JNI_END

  3882 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3883 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3884 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3885 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3886 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3887 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3888 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3889 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3891 #else /* USDT2 */

  3893 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3894                                     , EntryProbe, ReturnProbe); \

  3895   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3896                            ,ReturnProbe);           \

  3897 \

  3898 JNI_ENTRY(void, \

  3899 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3900              jsize len, const ElementType *buf)) \

  3901   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3902   EntryProbe; \

  3903   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3904   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3905   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3906     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3907   } else { \

  3908     if (len > 0) { \

  3909       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3910       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3911              (u_char*) buf, \

  3912              len << sc);    \

  3913     } \

  3914   } \

  3915 JNI_END

  3917 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3918                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3919                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3920 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3921                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3922                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3923 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3924                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3925                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3926 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3927                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3928                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3929 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3930                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3931                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3932 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3933                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3934                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3935 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3936                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3937                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3938 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3939                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3940                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3941 #endif /* USDT2 */

  3944 //

  3945 // Interception of natives

  3946 //

  3948 // The RegisterNatives call being attempted tried to register with a method that

  3949 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3950 // to see if the native method is now wrapped with the prefixes.  See the

  3951 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3952 static Method* find_prefixed_native(KlassHandle k,

  3953                                       Symbol* name, Symbol* signature, TRAPS) {

  3954 #if INCLUDE_JVMTI

  3955   ResourceMark rm(THREAD);

  3956   Method* method;

  3957   int name_len = name->utf8_length();

  3958   char* name_str = name->as_utf8();

  3959   int prefix_count;

  3960   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3961   for (int i = 0; i < prefix_count; i++) {

  3962     char* prefix = prefixes[i];

  3963     int prefix_len = (int)strlen(prefix);

  3965     // try adding this prefix to the method name and see if it matches another method name

  3966     int trial_len = name_len + prefix_len;

  3967     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3968     strcpy(trial_name_str, prefix);

  3969     strcat(trial_name_str, name_str);

  3970     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3971     if (trial_name == NULL) {

  3972       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3973     }

  3974     method = k()->lookup_method(trial_name, signature);

  3975     if (method == NULL) {

  3976       continue; // signature doesn't match, try the next prefix

  3977     }

  3978     if (method->is_native()) {

  3979       method->set_is_prefixed_native();

  3980       return method; // wahoo, we found a prefixed version of the method, return it

  3981     }

  3982     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3983     name_len = trial_len;

  3984     name_str = trial_name_str;

  3985   }

  3986 #endif // INCLUDE_JVMTI

  3987   return NULL; // not found

  3988 }

  3990 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3991   Method* method = k()->lookup_method(name, signature);

  3992   if (method == NULL) {

  3993     ResourceMark rm;

  3994     stringStream st;

  3995     st.print("Method %s name or signature does not match",

  3996              Method::name_and_sig_as_C_string(k(), name, signature));

  3997     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3998   }

  3999   if (!method->is_native()) {

  4000     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  4001     method = find_prefixed_native(k, name, signature, THREAD);

  4002     if (method == NULL) {

  4003       ResourceMark rm;

  4004       stringStream st;

  4005       st.print("Method %s is not declared as native",

  4006                Method::name_and_sig_as_C_string(k(), name, signature));

  4007       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4008     }

  4009   }

  4011   if (entry != NULL) {

  4012     method->set_native_function(entry,

  4013       Method::native_bind_event_is_interesting);

  4014   } else {

  4015     method->clear_native_function();

  4016   }

  4017   if (PrintJNIResolving) {

  4018     ResourceMark rm(THREAD);

  4019     tty->print_cr("[Registering JNI native method %s.%s]",

  4020       method->method_holder()->external_name(),

  4021       method->name()->as_C_string());

  4022   }

  4023   return true;

  4024 }

  4026 #ifndef USDT2

  4027 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4028 #else /* USDT2 */

  4029 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4030                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4031 #endif /* USDT2 */

  4033 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4034                                     const JNINativeMethod *methods,

  4035                                     jint nMethods))

  4036   JNIWrapper("RegisterNatives");

  4037 #ifndef USDT2

  4038   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4039 #else /* USDT2 */

  4040   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4041                                     env, clazz, (void *) methods, nMethods);

  4042 #endif /* USDT2 */

  4043   jint ret = 0;

  4044   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4046   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4048   for (int index = 0; index < nMethods; index++) {

  4049     const char* meth_name = methods[index].name;

  4050     const char* meth_sig = methods[index].signature;

  4051     int meth_name_len = (int)strlen(meth_name);

  4053     // The class should have been loaded (we have an instance of the class

  4054     // passed in) so the method and signature should already be in the symbol

  4055     // table.  If they're not there, the method doesn't exist.

  4056     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4057     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4059     if (name == NULL || signature == NULL) {

  4060       ResourceMark rm;

  4061       stringStream st;

  4062       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4063       // Must return negative value on failure

  4064       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4065     }

  4067     bool res = register_native(h_k, name, signature,

  4068                                (address) methods[index].fnPtr, THREAD);

  4069     if (!res) {

  4070       ret = -1;

  4071       break;

  4072     }

  4073   }

  4074   return ret;

  4075 JNI_END

  4078 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4079   JNIWrapper("UnregisterNatives");

  4080 #ifndef USDT2

  4081   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4082 #else /* USDT2 */

  4083  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4084                                      env, clazz);

  4085 #endif /* USDT2 */

  4086   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4087   //%note jni_2

  4088   if (k->oop_is_instance()) {

  4089     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4090       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4091       if (m->is_native()) {

  4092         m->clear_native_function();

  4093         m->set_signature_handler(NULL);

  4094       }

  4095     }

  4096   }

  4097 #ifndef USDT2

  4098   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4099 #else /* USDT2 */

  4100  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4101                                       0);

  4102 #endif /* USDT2 */

  4103   return 0;

  4104 JNI_END

  4106 //

  4107 // Monitor functions

  4108 //

  4110 #ifndef USDT2

  4111 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4112 #else /* USDT2 */

  4113 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4114                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4115 #endif /* USDT2 */

  4117 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4118 #ifndef USDT2

  4119   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4120 #else /* USDT2 */

  4121  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4122                                 env, jobj);

  4123 #endif /* USDT2 */

  4124   jint ret = JNI_ERR;

  4125   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4127   // If the object is null, we can't do anything with it

  4128   if (jobj == NULL) {

  4129     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4130   }

  4132   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4133   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4134   ret = JNI_OK;

  4135   return ret;

  4136 JNI_END

  4138 #ifndef USDT2

  4139 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4140 #else /* USDT2 */

  4141 DT_RETURN_MARK_DECL(MonitorExit, jint

  4142                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4143 #endif /* USDT2 */

  4145 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4146 #ifndef USDT2

  4147   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4148 #else /* USDT2 */

  4149  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4150                                env, jobj);

  4151 #endif /* USDT2 */

  4152   jint ret = JNI_ERR;

  4153   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4155   // Don't do anything with a null object

  4156   if (jobj == NULL) {

  4157     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4158   }

  4160   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4161   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4163   ret = JNI_OK;

  4164   return ret;

  4165 JNI_END

  4167 //

  4168 // Extensions

  4169 //

  4171 #ifndef USDT2

  4172 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4173 #else /* USDT2 */

  4174 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4175                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4176 #endif /* USDT2 */

  4178 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4179   JNIWrapper("GetStringRegion");

  4180 #ifndef USDT2

  4181   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4182 #else /* USDT2 */

  4183  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4184                                    env, string, start, len, buf);

  4185 #endif /* USDT2 */

  4186   DT_VOID_RETURN_MARK(GetStringRegion);

  4187   oop s = JNIHandles::resolve_non_null(string);

  4188   int s_len = java_lang_String::length(s);

  4189   if (start < 0 || len < 0 || start + len > s_len) {

  4190     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4191   } else {

  4192     if (len > 0) {

  4193       int s_offset = java_lang_String::offset(s);

  4194       typeArrayOop s_value = java_lang_String::value(s);

  4195       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4196     }

  4197   }

  4198 JNI_END

  4200 #ifndef USDT2

  4201 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4202 #else /* USDT2 */

  4203 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4204                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4205 #endif /* USDT2 */

  4207 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4208   JNIWrapper("GetStringUTFRegion");

  4209 #ifndef USDT2

  4210   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4211 #else /* USDT2 */

  4212  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4213                                       env, string, start, len, buf);

  4214 #endif /* USDT2 */

  4215   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4216   oop s = JNIHandles::resolve_non_null(string);

  4217   int s_len = java_lang_String::length(s);

  4218   if (start < 0 || len < 0 || start + len > s_len) {

  4219     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4220   } else {

  4221     //%note jni_7

  4222     if (len > 0) {

  4223       ResourceMark rm(THREAD);

  4224       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4225       int utf_len = (int)strlen(utf_region);

  4226       memcpy(buf, utf_region, utf_len);

  4227       buf[utf_len] = 0;

  4228     } else {

  4229       // JDK null-terminates the buffer even in len is zero

  4230       if (buf != NULL) {

  4231         buf[0] = 0;

  4232       }

  4233     }

  4234   }

  4235 JNI_END

  4238 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4239   JNIWrapper("GetPrimitiveArrayCritical");

  4240 #ifndef USDT2

  4241   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4242 #else /* USDT2 */

  4243  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4244                                              env, array, (uintptr_t *) isCopy);

  4245 #endif /* USDT2 */

  4246   GC_locker::lock_critical(thread);

  4247   if (isCopy != NULL) {

  4248     *isCopy = JNI_FALSE;

  4249   }

  4250   oop a = JNIHandles::resolve_non_null(array);

  4251   assert(a->is_array(), "just checking");

  4252   BasicType type;

  4253   if (a->is_objArray()) {

  4254     type = T_OBJECT;

  4255   } else {

  4256     type = TypeArrayKlass::cast(a->klass())->element_type();

  4257   }

  4258   void* ret = arrayOop(a)->base(type);

  4259 #ifndef USDT2

  4260   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4261 #else /* USDT2 */

  4262  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4263                                               ret);

  4264 #endif /* USDT2 */

  4265   return ret;

  4266 JNI_END

  4269 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4270   JNIWrapper("ReleasePrimitiveArrayCritical");

  4271 #ifndef USDT2

  4272   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4273 #else /* USDT2 */

  4274   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4275                                                   env, array, carray, mode);

  4276 #endif /* USDT2 */

  4277   // The array, carray and mode arguments are ignored

  4278   GC_locker::unlock_critical(thread);

  4279 #ifndef USDT2

  4280   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4281 #else /* USDT2 */

  4282 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4283 );

  4284 #endif /* USDT2 */

  4285 JNI_END

  4288 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4289   JNIWrapper("GetStringCritical");

  4290 #ifndef USDT2

  4291   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4292 #else /* USDT2 */

  4293   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4294                                       env, string, (uintptr_t *) isCopy);

  4295 #endif /* USDT2 */

  4296   GC_locker::lock_critical(thread);

  4297   if (isCopy != NULL) {

  4298     *isCopy = JNI_FALSE;

  4299   }

  4300   oop s = JNIHandles::resolve_non_null(string);

  4301   int s_len = java_lang_String::length(s);

  4302   typeArrayOop s_value = java_lang_String::value(s);

  4303   int s_offset = java_lang_String::offset(s);

  4304   const jchar* ret;

  4305   if (s_len > 0) {

  4306     ret = s_value->char_at_addr(s_offset);

  4307   } else {

  4308     ret = (jchar*) s_value->base(T_CHAR);

  4309   }

  4310 #ifndef USDT2

  4311   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4312 #else /* USDT2 */

  4313  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4314                                       (uint16_t *) ret);

  4315 #endif /* USDT2 */

  4316   return ret;

  4317 JNI_END

  4320 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4321   JNIWrapper("ReleaseStringCritical");

  4322 #ifndef USDT2

  4323   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4324 #else /* USDT2 */

  4325   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4326                                           env, str, (uint16_t *) chars);

  4327 #endif /* USDT2 */

  4328   // The str and chars arguments are ignored

  4329   GC_locker::unlock_critical(thread);

  4330 #ifndef USDT2

  4331   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4332 #else /* USDT2 */

  4333 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4334 );

  4335 #endif /* USDT2 */

  4336 JNI_END

  4339 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4340   JNIWrapper("jni_NewWeakGlobalRef");

  4341 #ifndef USDT2

  4342   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4343 #else /* USDT2 */

  4344  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4345                                     env, ref);

  4346 #endif /* USDT2 */

  4347   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4348   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4349 #ifndef USDT2

  4350   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4351 #else /* USDT2 */

  4352  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4353                                      ret);

  4354 #endif /* USDT2 */

  4355   return ret;

  4356 JNI_END

  4358 // Must be JNI_ENTRY (with HandleMark)

  4359 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4360   JNIWrapper("jni_DeleteWeakGlobalRef");

  4361 #ifndef USDT2

  4362   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4363 #else /* USDT2 */

  4364   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4365                                         env, ref);

  4366 #endif /* USDT2 */

  4367   JNIHandles::destroy_weak_global(ref);

  4368 #ifndef USDT2

  4369   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4370 #else /* USDT2 */

  4371   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4372                                          );

  4373 #endif /* USDT2 */

  4374 JNI_END

  4377 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4378   JNIWrapper("jni_ExceptionCheck");

  4379 #ifndef USDT2

  4380   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4381 #else /* USDT2 */

  4382  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4383                                   env);

  4384 #endif /* USDT2 */

  4385   jni_check_async_exceptions(thread);

  4386   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4387 #ifndef USDT2

  4388   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4389 #else /* USDT2 */

  4390  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4391                                    ret);

  4392 #endif /* USDT2 */

  4393   return ret;

  4394 JNI_END

  4397 // Initialization state for three routines below relating to

  4398 // java.nio.DirectBuffers

  4399 static          jint directBufferSupportInitializeStarted = 0;

  4400 static volatile jint directBufferSupportInitializeEnded   = 0;

  4401 static volatile jint directBufferSupportInitializeFailed  = 0;

  4402 static jclass    bufferClass                 = NULL;

  4403 static jclass    directBufferClass           = NULL;

  4404 static jclass    directByteBufferClass       = NULL;

  4405 static jmethodID directByteBufferConstructor = NULL;

  4406 static jfieldID  directBufferAddressField    = NULL;

  4407 static jfieldID  bufferCapacityField         = NULL;

  4409 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4410   Handle loader;            // null (bootstrap) loader

  4411   Handle protection_domain; // null protection domain

  4413   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4414   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4416   if (TraceClassResolution && result != NULL) {

  4417     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4418   }

  4419   return result;

  4420 }

  4422 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4423 // circumvent any security checks that would be done by jni_FindClass.

  4424 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4425 {

  4426   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4427   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4428   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4429   return true;

  4430 }

  4431 JNI_END

  4434 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4435   if (directBufferSupportInitializeFailed) {

  4436     return false;

  4437   }

  4439   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4440     if (!lookupDirectBufferClasses(env)) {

  4441       directBufferSupportInitializeFailed = 1;

  4442       return false;

  4443     }

  4445     // Make global references for these

  4446     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4447     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4448     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4450     // Get needed field and method IDs

  4451     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4452     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4453     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4455     if ((directByteBufferConstructor == NULL) ||

  4456         (directBufferAddressField    == NULL) ||

  4457         (bufferCapacityField         == NULL)) {

  4458       directBufferSupportInitializeFailed = 1;

  4459       return false;

  4460     }

  4462     directBufferSupportInitializeEnded = 1;

  4463   } else {

  4464     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4465       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4466       // os::sleep which requires the VM state transition. On other platforms, it

  4467       // is not necessary. The following call to change the VM state is purposely

  4468       // put inside the loop to avoid potential deadlock when multiple threads

  4469       // try to call this method. See 6791815 for more details.

  4470       ThreadInVMfromNative tivn(thread);

  4471       os::yield_all();

  4472     }

  4473   }

  4475   return !directBufferSupportInitializeFailed;

  4476 }

  4478 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4479 {

  4480   // thread_from_jni_environment() will block if VM is gone.

  4481   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4483   JNIWrapper("jni_NewDirectByteBuffer");

  4484 #ifndef USDT2

  4485   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4486 #else /* USDT2 */

  4487  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4488                                        env, address, capacity);

  4489 #endif /* USDT2 */

  4491   if (!directBufferSupportInitializeEnded) {

  4492     if (!initializeDirectBufferSupport(env, thread)) {

  4493 #ifndef USDT2

  4494       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4495 #else /* USDT2 */

  4496       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4497                                              NULL);

  4498 #endif /* USDT2 */

  4499       return NULL;

  4500     }

  4501   }

  4503   // Being paranoid about accidental sign extension on address

  4504   jlong addr = (jlong) ((uintptr_t) address);

  4505   // NOTE that package-private DirectByteBuffer constructor currently

  4506   // takes int capacity

  4507   jint  cap  = (jint)  capacity;

  4508   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4509 #ifndef USDT2

  4510   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4511 #else /* USDT2 */

  4512   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4513                                          ret);

  4514 #endif /* USDT2 */

  4515   return ret;

  4516 }

  4518 #ifndef USDT2

  4519 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4520 #else /* USDT2 */

  4521 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4522                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4523 #endif /* USDT2 */

  4525 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4526 {

  4527   // thread_from_jni_environment() will block if VM is gone.

  4528   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4530   JNIWrapper("jni_GetDirectBufferAddress");

  4531 #ifndef USDT2

  4532   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4533 #else /* USDT2 */

  4534   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4535                                            env, buf);

  4536 #endif /* USDT2 */

  4537   void* ret = NULL;

  4538   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4540   if (!directBufferSupportInitializeEnded) {

  4541     if (!initializeDirectBufferSupport(env, thread)) {

  4542       return 0;

  4543     }

  4544   }

  4546   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4547     return 0;

  4548   }

  4550   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4551   return ret;

  4552 }

  4554 #ifndef USDT2

  4555 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4556 #else /* USDT2 */

  4557 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4558                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4559 #endif /* USDT2 */

  4561 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4562 {

  4563   // thread_from_jni_environment() will block if VM is gone.

  4564   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4566   JNIWrapper("jni_GetDirectBufferCapacity");

  4567 #ifndef USDT2

  4568   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4569 #else /* USDT2 */

  4570   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4571                                             env, buf);

  4572 #endif /* USDT2 */

  4573   jlong ret = -1;

  4574   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4576   if (!directBufferSupportInitializeEnded) {

  4577     if (!initializeDirectBufferSupport(env, thread)) {

  4578       ret = 0;

  4579       return ret;

  4580     }

  4581   }

  4583   if (buf == NULL) {

  4584     return -1;

  4585   }

  4587   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4588     return -1;

  4589   }

  4591   // NOTE that capacity is currently an int in the implementation

  4592   ret = env->GetIntField(buf, bufferCapacityField);

  4593   return ret;

  4594 }

  4597 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4598   JNIWrapper("GetVersion");

  4599 #ifndef USDT2

  4600   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4601 #else /* USDT2 */

  4602   HOTSPOT_JNI_GETVERSION_ENTRY(

  4603                                env);

  4604 #endif /* USDT2 */

  4605 #ifndef USDT2

  4606   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4607 #else /* USDT2 */

  4608   HOTSPOT_JNI_GETVERSION_RETURN(

  4609                                 CurrentVersion);

  4610 #endif /* USDT2 */

  4611   return CurrentVersion;

  4612 JNI_END

  4614 extern struct JavaVM_ main_vm;

  4616 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4617   JNIWrapper("jni_GetJavaVM");

  4618 #ifndef USDT2

  4619   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4620 #else /* USDT2 */

  4621   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4622                               env, (void **) vm);

  4623 #endif /* USDT2 */

  4624   *vm  = (JavaVM *)(&main_vm);

  4625 #ifndef USDT2

  4626   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4627 #else /* USDT2 */

  4628   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4629                                JNI_OK);

  4630 #endif /* USDT2 */

  4631   return JNI_OK;

  4632 JNI_END

  4634 // Structure containing all jni functions

  4635 struct JNINativeInterface_ jni_NativeInterface = {

  4636     NULL,

  4637     NULL,

  4638     NULL,

  4640     NULL,

  4642     jni_GetVersion,

  4644     jni_DefineClass,

  4645     jni_FindClass,

  4647     jni_FromReflectedMethod,

  4648     jni_FromReflectedField,

  4650     jni_ToReflectedMethod,

  4652     jni_GetSuperclass,

  4653     jni_IsAssignableFrom,

  4655     jni_ToReflectedField,

  4657     jni_Throw,

  4658     jni_ThrowNew,

  4659     jni_ExceptionOccurred,

  4660     jni_ExceptionDescribe,

  4661     jni_ExceptionClear,

  4662     jni_FatalError,

  4664     jni_PushLocalFrame,

  4665     jni_PopLocalFrame,

  4667     jni_NewGlobalRef,

  4668     jni_DeleteGlobalRef,

  4669     jni_DeleteLocalRef,

  4670     jni_IsSameObject,

  4672     jni_NewLocalRef,

  4673     jni_EnsureLocalCapacity,

  4675     jni_AllocObject,

  4676     jni_NewObject,

  4677     jni_NewObjectV,

  4678     jni_NewObjectA,

  4680     jni_GetObjectClass,

  4681     jni_IsInstanceOf,

  4683     jni_GetMethodID,

  4685     jni_CallObjectMethod,

  4686     jni_CallObjectMethodV,

  4687     jni_CallObjectMethodA,

  4688     jni_CallBooleanMethod,

  4689     jni_CallBooleanMethodV,

  4690     jni_CallBooleanMethodA,

  4691     jni_CallByteMethod,

  4692     jni_CallByteMethodV,

  4693     jni_CallByteMethodA,

  4694     jni_CallCharMethod,

  4695     jni_CallCharMethodV,

  4696     jni_CallCharMethodA,

  4697     jni_CallShortMethod,

  4698     jni_CallShortMethodV,

  4699     jni_CallShortMethodA,

  4700     jni_CallIntMethod,

  4701     jni_CallIntMethodV,

  4702     jni_CallIntMethodA,

  4703     jni_CallLongMethod,

  4704     jni_CallLongMethodV,

  4705     jni_CallLongMethodA,

  4706     jni_CallFloatMethod,

  4707     jni_CallFloatMethodV,

  4708     jni_CallFloatMethodA,

  4709     jni_CallDoubleMethod,

  4710     jni_CallDoubleMethodV,

  4711     jni_CallDoubleMethodA,

  4712     jni_CallVoidMethod,

  4713     jni_CallVoidMethodV,

  4714     jni_CallVoidMethodA,

  4716     jni_CallNonvirtualObjectMethod,

  4717     jni_CallNonvirtualObjectMethodV,

  4718     jni_CallNonvirtualObjectMethodA,

  4719     jni_CallNonvirtualBooleanMethod,

  4720     jni_CallNonvirtualBooleanMethodV,

  4721     jni_CallNonvirtualBooleanMethodA,

  4722     jni_CallNonvirtualByteMethod,

  4723     jni_CallNonvirtualByteMethodV,

  4724     jni_CallNonvirtualByteMethodA,

  4725     jni_CallNonvirtualCharMethod,

  4726     jni_CallNonvirtualCharMethodV,

  4727     jni_CallNonvirtualCharMethodA,

  4728     jni_CallNonvirtualShortMethod,

  4729     jni_CallNonvirtualShortMethodV,

  4730     jni_CallNonvirtualShortMethodA,

  4731     jni_CallNonvirtualIntMethod,

  4732     jni_CallNonvirtualIntMethodV,

  4733     jni_CallNonvirtualIntMethodA,

  4734     jni_CallNonvirtualLongMethod,

  4735     jni_CallNonvirtualLongMethodV,

  4736     jni_CallNonvirtualLongMethodA,

  4737     jni_CallNonvirtualFloatMethod,

  4738     jni_CallNonvirtualFloatMethodV,

  4739     jni_CallNonvirtualFloatMethodA,

  4740     jni_CallNonvirtualDoubleMethod,

  4741     jni_CallNonvirtualDoubleMethodV,

  4742     jni_CallNonvirtualDoubleMethodA,

  4743     jni_CallNonvirtualVoidMethod,

  4744     jni_CallNonvirtualVoidMethodV,

  4745     jni_CallNonvirtualVoidMethodA,

  4747     jni_GetFieldID,

  4749     jni_GetObjectField,

  4750     jni_GetBooleanField,

  4751     jni_GetByteField,

  4752     jni_GetCharField,

  4753     jni_GetShortField,

  4754     jni_GetIntField,

  4755     jni_GetLongField,

  4756     jni_GetFloatField,

  4757     jni_GetDoubleField,

  4759     jni_SetObjectField,

  4760     jni_SetBooleanField,

  4761     jni_SetByteField,

  4762     jni_SetCharField,

  4763     jni_SetShortField,

  4764     jni_SetIntField,

  4765     jni_SetLongField,

  4766     jni_SetFloatField,

  4767     jni_SetDoubleField,

  4769     jni_GetStaticMethodID,

  4771     jni_CallStaticObjectMethod,

  4772     jni_CallStaticObjectMethodV,

  4773     jni_CallStaticObjectMethodA,

  4774     jni_CallStaticBooleanMethod,

  4775     jni_CallStaticBooleanMethodV,

  4776     jni_CallStaticBooleanMethodA,

  4777     jni_CallStaticByteMethod,

  4778     jni_CallStaticByteMethodV,

  4779     jni_CallStaticByteMethodA,

  4780     jni_CallStaticCharMethod,

  4781     jni_CallStaticCharMethodV,

  4782     jni_CallStaticCharMethodA,

  4783     jni_CallStaticShortMethod,

  4784     jni_CallStaticShortMethodV,

  4785     jni_CallStaticShortMethodA,

  4786     jni_CallStaticIntMethod,

  4787     jni_CallStaticIntMethodV,

  4788     jni_CallStaticIntMethodA,

  4789     jni_CallStaticLongMethod,

  4790     jni_CallStaticLongMethodV,

  4791     jni_CallStaticLongMethodA,

  4792     jni_CallStaticFloatMethod,

  4793     jni_CallStaticFloatMethodV,

  4794     jni_CallStaticFloatMethodA,

  4795     jni_CallStaticDoubleMethod,

  4796     jni_CallStaticDoubleMethodV,

  4797     jni_CallStaticDoubleMethodA,

  4798     jni_CallStaticVoidMethod,

  4799     jni_CallStaticVoidMethodV,

  4800     jni_CallStaticVoidMethodA,

  4802     jni_GetStaticFieldID,

  4804     jni_GetStaticObjectField,

  4805     jni_GetStaticBooleanField,

  4806     jni_GetStaticByteField,

  4807     jni_GetStaticCharField,

  4808     jni_GetStaticShortField,

  4809     jni_GetStaticIntField,

  4810     jni_GetStaticLongField,

  4811     jni_GetStaticFloatField,

  4812     jni_GetStaticDoubleField,

  4814     jni_SetStaticObjectField,

  4815     jni_SetStaticBooleanField,

  4816     jni_SetStaticByteField,

  4817     jni_SetStaticCharField,

  4818     jni_SetStaticShortField,

  4819     jni_SetStaticIntField,

  4820     jni_SetStaticLongField,

  4821     jni_SetStaticFloatField,

  4822     jni_SetStaticDoubleField,

  4824     jni_NewString,

  4825     jni_GetStringLength,

  4826     jni_GetStringChars,

  4827     jni_ReleaseStringChars,

  4829     jni_NewStringUTF,

  4830     jni_GetStringUTFLength,

  4831     jni_GetStringUTFChars,

  4832     jni_ReleaseStringUTFChars,

  4834     jni_GetArrayLength,

  4836     jni_NewObjectArray,

  4837     jni_GetObjectArrayElement,

  4838     jni_SetObjectArrayElement,

  4840     jni_NewBooleanArray,

  4841     jni_NewByteArray,

  4842     jni_NewCharArray,

  4843     jni_NewShortArray,

  4844     jni_NewIntArray,

  4845     jni_NewLongArray,

  4846     jni_NewFloatArray,

  4847     jni_NewDoubleArray,

  4849     jni_GetBooleanArrayElements,

  4850     jni_GetByteArrayElements,

  4851     jni_GetCharArrayElements,

  4852     jni_GetShortArrayElements,

  4853     jni_GetIntArrayElements,

  4854     jni_GetLongArrayElements,

  4855     jni_GetFloatArrayElements,

  4856     jni_GetDoubleArrayElements,

  4858     jni_ReleaseBooleanArrayElements,

  4859     jni_ReleaseByteArrayElements,

  4860     jni_ReleaseCharArrayElements,

  4861     jni_ReleaseShortArrayElements,

  4862     jni_ReleaseIntArrayElements,

  4863     jni_ReleaseLongArrayElements,

  4864     jni_ReleaseFloatArrayElements,

  4865     jni_ReleaseDoubleArrayElements,

  4867     jni_GetBooleanArrayRegion,

  4868     jni_GetByteArrayRegion,

  4869     jni_GetCharArrayRegion,

  4870     jni_GetShortArrayRegion,

  4871     jni_GetIntArrayRegion,

  4872     jni_GetLongArrayRegion,

  4873     jni_GetFloatArrayRegion,

  4874     jni_GetDoubleArrayRegion,

  4876     jni_SetBooleanArrayRegion,

  4877     jni_SetByteArrayRegion,

  4878     jni_SetCharArrayRegion,

  4879     jni_SetShortArrayRegion,

  4880     jni_SetIntArrayRegion,

  4881     jni_SetLongArrayRegion,

  4882     jni_SetFloatArrayRegion,

  4883     jni_SetDoubleArrayRegion,

  4885     jni_RegisterNatives,

  4886     jni_UnregisterNatives,

  4888     jni_MonitorEnter,

  4889     jni_MonitorExit,

  4891     jni_GetJavaVM,

  4893     jni_GetStringRegion,

  4894     jni_GetStringUTFRegion,

  4896     jni_GetPrimitiveArrayCritical,

  4897     jni_ReleasePrimitiveArrayCritical,

  4899     jni_GetStringCritical,

  4900     jni_ReleaseStringCritical,

  4902     jni_NewWeakGlobalRef,

  4903     jni_DeleteWeakGlobalRef,

  4905     jni_ExceptionCheck,

  4907     jni_NewDirectByteBuffer,

  4908     jni_GetDirectBufferAddress,

  4909     jni_GetDirectBufferCapacity,

  4911     // New 1_6 features

  4913     jni_GetObjectRefType

  4914 };

  4917 // For jvmti use to modify jni function table.

  4918 // Java threads in native contiues to run until it is transitioned

  4919 // to VM at safepoint. Before the transition or before it is blocked

  4920 // for safepoint it may access jni function table. VM could crash if

  4921 // any java thread access the jni function table in the middle of memcpy.

  4922 // To avoid this each function pointers are copied automically.

  4923 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4924   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4925   intptr_t *a = (intptr_t *) jni_functions();

  4926   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4927   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4928     Atomic::store_ptr(*b++, a++);

  4929   }

  4930 }

  4932 void quicken_jni_functions() {

  4933   // Replace Get<Primitive>Field with fast versions

  4934   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4935       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4936 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4937       // windows x86 currently needs SEH wrapper and the gain of the fast

  4938       // versions currently isn't certain for server vm on uniprocessor.

  4939       && os::is_MP()

  4940 #endif

  4941   ) {

  4942     address func;

  4943     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4944     if (func != (address)-1) {

  4945       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4946     }

  4947     func = JNI_FastGetField::generate_fast_get_byte_field();

  4948     if (func != (address)-1) {

  4949       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4950     }

  4951     func = JNI_FastGetField::generate_fast_get_char_field();

  4952     if (func != (address)-1) {

  4953       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4954     }

  4955     func = JNI_FastGetField::generate_fast_get_short_field();

  4956     if (func != (address)-1) {

  4957       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4958     }

  4959     func = JNI_FastGetField::generate_fast_get_int_field();

  4960     if (func != (address)-1) {

  4961       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4962     }

  4963     func = JNI_FastGetField::generate_fast_get_long_field();

  4964     if (func != (address)-1) {

  4965       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4966     }

  4967     func = JNI_FastGetField::generate_fast_get_float_field();

  4968     if (func != (address)-1) {

  4969       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4970     }

  4971     func = JNI_FastGetField::generate_fast_get_double_field();

  4972     if (func != (address)-1) {

  4973       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4974     }

  4975   }

  4976 }

  4978 // Returns the function structure

  4979 struct JNINativeInterface_* jni_functions() {

  4980 #if INCLUDE_JNI_CHECK

  4981   if (CheckJNICalls) return jni_functions_check();

  4982 #endif // INCLUDE_JNI_CHECK

  4983   return &jni_NativeInterface;

  4984 }

  4986 // Returns the function structure

  4987 struct JNINativeInterface_* jni_functions_nocheck() {

  4988   return &jni_NativeInterface;

  4989 }

  4992 // Invocation API

  4995 // Forward declaration

  4996 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  4998 // Global invocation API vars

  4999 volatile jint vm_created = 0;

  5000 // Indicate whether it is safe to recreate VM

  5001 volatile jint safe_to_recreate_vm = 1;

  5002 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5005 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5006 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5008 #ifndef USDT2

  5009 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5010 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5011 #else /* USDT2 */

  5012 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5013                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5014 #endif /* USDT2 */

  5016 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5017 #ifndef USDT2

  5018   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5019 #else /* USDT2 */

  5020   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5021                                              args_);

  5022 #endif /* USDT2 */

  5023   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5024   jint ret = JNI_ERR;

  5025   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5027   if (Threads::is_supported_jni_version(args->version)) {

  5028     ret = JNI_OK;

  5029   }

  5030   // 1.1 style no longer supported in hotspot.

  5031   // According the JNI spec, we should update args->version on return.

  5032   // We also use the structure to communicate with launcher about default

  5033   // stack size.

  5034   if (args->version == JNI_VERSION_1_1) {

  5035     args->version = JNI_VERSION_1_2;

  5036     // javaStackSize is int in arguments structure

  5037     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5038     args->javaStackSize = (jint)(ThreadStackSize * K);

  5039   }

  5040   return ret;

  5041 }

  5043 #ifndef PRODUCT

  5045 #include "gc_interface/collectedHeap.hpp"

  5046 #include "utilities/quickSort.hpp"

  5047 #if INCLUDE_VM_STRUCTS

  5048 #include "runtime/vmStructs.hpp"

  5049 #endif

  5051 #define run_unit_test(unit_test_function_call)              \

  5052   tty->print_cr("Running test: " #unit_test_function_call); \

  5053   unit_test_function_call

  5055 void execute_internal_vm_tests() {

  5056   if (ExecuteInternalVMTests) {

  5057     tty->print_cr("Running internal VM tests");

  5058     run_unit_test(arrayOopDesc::test_max_array_length());

  5059     run_unit_test(CollectedHeap::test_is_in());

  5060     run_unit_test(QuickSort::test_quick_sort());

  5061     run_unit_test(AltHashing::test_alt_hash());

  5062 #if INCLUDE_VM_STRUCTS

  5063     run_unit_test(VMStructs::test());

  5064 #endif

  5065     tty->print_cr("All internal VM tests passed");

  5066   }

  5067 }

  5069 #undef run_unit_test

  5071 #endif

  5073 #ifndef USDT2

  5074 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5075 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5076 #else /* USDT2 */

  5077 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5078                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5079 #endif /* USDT2 */

  5081 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5082 #ifndef USDT2

  5083   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5084 #else /* USDT2 */

  5085   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5086                                  (void **) vm, penv, args);

  5087 #endif /* USDT2 */

  5089   jint result = JNI_ERR;

  5090   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5092   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5093   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5094   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5095   // on all architectures.  So we check it works before relying on it.

  5096 #if defined(ZERO) && defined(ASSERT)

  5097   {

  5098     jint a = 0xcafebabe;

  5099     jint b = Atomic::xchg(0xdeadbeef, &a);

  5100     void *c = &a;

  5101     void *d = Atomic::xchg_ptr(&b, &c);

  5102     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5103     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5104   }

  5105 #endif // ZERO && ASSERT

  5107   // At the moment it's only possible to have one Java VM,

  5108   // since some of the runtime state is in global variables.

  5110   // We cannot use our mutex locks here, since they only work on

  5111   // Threads. We do an atomic compare and exchange to ensure only

  5112   // one thread can call this method at a time

  5114   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5115   // the add/dec implementations are dependent on whether we are running

  5116   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5117   // function used to determine this will always return false. Atomic::xchg

  5118   // does not have this problem.

  5119   if (Atomic::xchg(1, &vm_created) == 1) {

  5120     return JNI_ERR;   // already created, or create attempt in progress

  5121   }

  5122   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5123     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5124   }

  5126   assert(vm_created == 1, "vm_created is true during the creation");

  5128   /**

  5129    * Certain errors during initialization are recoverable and do not

  5130    * prevent this method from being called again at a later time

  5131    * (perhaps with different arguments).  However, at a certain

  5132    * point during initialization if an error occurs we cannot allow

  5133    * this function to be called again (or it will crash).  In those

  5134    * situations, the 'canTryAgain' flag is set to false, which atomically

  5135    * sets safe_to_recreate_vm to 1, such that any new call to

  5136    * JNI_CreateJavaVM will immediately fail using the above logic.

  5137    */

  5138   bool can_try_again = true;

  5140   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5141   if (result == JNI_OK) {

  5142     JavaThread *thread = JavaThread::current();

  5143     /* thread is thread_in_vm here */

  5144     *vm = (JavaVM *)(&main_vm);

  5145     *(JNIEnv**)penv = thread->jni_environment();

  5147     // Tracks the time application was running before GC

  5148     RuntimeService::record_application_start();

  5150     // Notify JVMTI

  5151     if (JvmtiExport::should_post_thread_life()) {

  5152        JvmtiExport::post_thread_start(thread);

  5153     }

  5155     EVENT_BEGIN(TraceEventThreadStart, event);

  5156     EVENT_COMMIT(event,

  5157         EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5159     // Check if we should compile all classes on bootclasspath

  5160     NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();)

  5161     NOT_PRODUCT(if (ReplayCompiles) ciReplay::replay(thread);)

  5162     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5163     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5164   } else {

  5165     if (can_try_again) {

  5166       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5167       safe_to_recreate_vm = 1;

  5168     }

  5170     // Creation failed. We must reset vm_created

  5171     *vm = 0;

  5172     *(JNIEnv**)penv = 0;

  5173     // reset vm_created last to avoid race condition. Use OrderAccess to

  5174     // control both compiler and architectural-based reordering.

  5175     OrderAccess::release_store(&vm_created, 0);

  5176   }

  5178   NOT_PRODUCT(test_error_handler(ErrorHandlerTest));

  5179   NOT_PRODUCT(execute_internal_vm_tests());

  5180   return result;

  5181 }

  5183 #ifndef USDT2

  5184 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5185   JavaVM**, jsize, jsize*);

  5186 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5187 #endif /* !USDT2 */

  5189 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5190   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5191   // JNIWrapper("GetCreatedJavaVMs");

  5192 #ifndef USDT2

  5193   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5194     vm_buf, bufLen, numVMs);

  5195 #else /* USDT2 */

  5196   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5197                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5198 #endif /* USDT2 */

  5199   if (vm_created) {

  5200     if (numVMs != NULL) *numVMs = 1;

  5201     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5202   } else {

  5203     if (numVMs != NULL) *numVMs = 0;

  5204   }

  5205 #ifndef USDT2

  5206   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5207 #else /* USDT2 */

  5208   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5209                                     JNI_OK);

  5210 #endif /* USDT2 */

  5211   return JNI_OK;

  5212 }

  5214 extern "C" {

  5216 #ifndef USDT2

  5217 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5218 #else /* USDT2 */

  5219 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5220                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5221 #endif /* USDT2 */

  5223 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5224 #ifndef USDT2

  5225   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5226 #else /* USDT2 */

  5227   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5228                                   vm);

  5229 #endif /* USDT2 */

  5230   jint res = JNI_ERR;

  5231   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5233   if (!vm_created) {

  5234     res = JNI_ERR;

  5235     return res;

  5236   }

  5238   JNIWrapper("DestroyJavaVM");

  5239   JNIEnv *env;

  5240   JavaVMAttachArgs destroyargs;

  5241   destroyargs.version = CurrentVersion;

  5242   destroyargs.name = (char *)"DestroyJavaVM";

  5243   destroyargs.group = NULL;

  5244   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5245   if (res != JNI_OK) {

  5246     return res;

  5247   }

  5249   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5250   JavaThread* thread = JavaThread::current();

  5251   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5252   if (Threads::destroy_vm()) {

  5253     // Should not change thread state, VM is gone

  5254     vm_created = false;

  5255     res = JNI_OK;

  5256     return res;

  5257   } else {

  5258     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5259     res = JNI_ERR;

  5260     return res;

  5261   }

  5262 }

  5265 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5266   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5268   // Check below commented out from JDK1.2fcs as well

  5269   /*

  5270   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5271     return JNI_EVERSION;

  5272   }

  5273   */

  5275   Thread* t = ThreadLocalStorage::get_thread_slow();

  5276   if (t != NULL) {

  5277     // If the thread has been attached this operation is a no-op

  5278     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5279     return JNI_OK;

  5280   }

  5282   // Create a thread and mark it as attaching so it will be skipped by the

  5283   // ThreadsListEnumerator - see CR 6404306

  5284   JavaThread* thread = new JavaThread(true);

  5286   // Set correct safepoint info. The thread is going to call into Java when

  5287   // initializing the Java level thread object. Hence, the correct state must

  5288   // be set in order for the Safepoint code to deal with it correctly.

  5289   thread->set_thread_state(_thread_in_vm);

  5290   // Must do this before initialize_thread_local_storage

  5291   thread->record_stack_base_and_size();

  5293   thread->initialize_thread_local_storage();

  5295   if (!os::create_attached_thread(thread)) {

  5296     delete thread;

  5297     return JNI_ERR;

  5298   }

  5299   // Enable stack overflow checks

  5300   thread->create_stack_guard_pages();

  5302   thread->initialize_tlab();

  5304   thread->cache_global_variables();

  5306   // Crucial that we do not have a safepoint check for this thread, since it has

  5307   // not been added to the Thread list yet.

  5308   { Threads_lock->lock_without_safepoint_check();

  5309     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5310     // avoid this thread trying to do a GC before it is added to the thread-list

  5311     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5312     Threads::add(thread, daemon);

  5313     Threads_lock->unlock();

  5314   }

  5315   // Create thread group and name info from attach arguments

  5316   oop group = NULL;

  5317   char* thread_name = NULL;

  5318   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5319     group = JNIHandles::resolve(args->group);

  5320     thread_name = args->name; // may be NULL

  5321   }

  5322   if (group == NULL) group = Universe::main_thread_group();

  5324   // Create Java level thread object and attach it to this thread

  5325   bool attach_failed = false;

  5326   {

  5327     EXCEPTION_MARK;

  5328     HandleMark hm(THREAD);

  5329     Handle thread_group(THREAD, group);

  5330     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5331     if (HAS_PENDING_EXCEPTION) {

  5332       CLEAR_PENDING_EXCEPTION;

  5333       // cleanup outside the handle mark.

  5334       attach_failed = true;

  5335     }

  5336   }

  5338   if (attach_failed) {

  5339     // Added missing cleanup

  5340     thread->cleanup_failed_attach_current_thread();

  5341     return JNI_ERR;

  5342   }

  5344   // mark the thread as no longer attaching

  5345   // this uses a fence to push the change through so we don't have

  5346   // to regrab the threads_lock

  5347   thread->set_done_attaching_via_jni();

  5349   // Set java thread status.

  5350   java_lang_Thread::set_thread_status(thread->threadObj(),

  5351               java_lang_Thread::RUNNABLE);

  5353   // Notify the debugger

  5354   if (JvmtiExport::should_post_thread_life()) {

  5355     JvmtiExport::post_thread_start(thread);

  5356   }

  5358   EVENT_BEGIN(TraceEventThreadStart, event);

  5359   EVENT_COMMIT(event,

  5360       EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5362   *(JNIEnv**)penv = thread->jni_environment();

  5364   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5365   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5366   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5367   // needed.

  5369   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5371   // Perform any platform dependent FPU setup

  5372   os::setup_fpu();

  5374   return JNI_OK;

  5375 }

  5378 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5379 #ifndef USDT2

  5380   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5381 #else /* USDT2 */

  5382   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5383                                         vm, penv, _args);

  5384 #endif /* USDT2 */

  5385   if (!vm_created) {

  5386 #ifndef USDT2

  5387     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5388 #else /* USDT2 */

  5389   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5390                                          (uint32_t) JNI_ERR);

  5391 #endif /* USDT2 */

  5392     return JNI_ERR;

  5393   }

  5395   JNIWrapper("AttachCurrentThread");

  5396   jint ret = attach_current_thread(vm, penv, _args, false);

  5397 #ifndef USDT2

  5398   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5399 #else /* USDT2 */

  5400   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5401                                          ret);

  5402 #endif /* USDT2 */

  5403   return ret;

  5404 }

  5407 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5408 #ifndef USDT2

  5409   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5410 #else /* USDT2 */

  5411   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5412                                         vm);

  5413 #endif /* USDT2 */

  5414   VM_Exit::block_if_vm_exited();

  5416   JNIWrapper("DetachCurrentThread");

  5418   // If the thread has been deattacted the operations is a no-op

  5419   if (ThreadLocalStorage::thread() == NULL) {

  5420 #ifndef USDT2

  5421     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5422 #else /* USDT2 */

  5423   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5424                                          JNI_OK);

  5425 #endif /* USDT2 */

  5426     return JNI_OK;

  5427   }

  5429   JavaThread* thread = JavaThread::current();

  5430   if (thread->has_last_Java_frame()) {

  5431 #ifndef USDT2

  5432     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5433 #else /* USDT2 */

  5434   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5435                                          (uint32_t) JNI_ERR);

  5436 #endif /* USDT2 */

  5437     // Can't detach a thread that's running java, that can't work.

  5438     return JNI_ERR;

  5439   }

  5441   // Safepoint support. Have to do call-back to safepoint code, if in the

  5442   // middel of a safepoint operation

  5443   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5445   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5446   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5447   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5448   // of the guards is visible in jni_AttachCurrentThread above,

  5449   // the removal of the guards is buried below in JavaThread::exit()

  5450   // here. The abstraction should be more symmetrically either exposed

  5451   // or hidden (e.g. it could probably be hidden in the same

  5452   // (platform-dependent) methods where we do alternate stack

  5453   // maintenance work?)

  5454   thread->exit(false, JavaThread::jni_detach);

  5455   delete thread;

  5457 #ifndef USDT2

  5458   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5459 #else /* USDT2 */

  5460   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5461                                          JNI_OK);

  5462 #endif /* USDT2 */

  5463   return JNI_OK;

  5464 }

  5466 #ifndef USDT2

  5467 DT_RETURN_MARK_DECL(GetEnv, jint);

  5468 #else /* USDT2 */

  5469 DT_RETURN_MARK_DECL(GetEnv, jint

  5470                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5471 #endif /* USDT2 */

  5473 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5474 #ifndef USDT2

  5475   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5476 #else /* USDT2 */

  5477   HOTSPOT_JNI_GETENV_ENTRY(

  5478                            vm, penv, version);

  5479 #endif /* USDT2 */

  5480   jint ret = JNI_ERR;

  5481   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5483   if (!vm_created) {

  5484     *penv = NULL;

  5485     ret = JNI_EDETACHED;

  5486     return ret;

  5487   }

  5489   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5490     return ret;

  5491   }

  5493 #ifndef JVMPI_VERSION_1

  5494 // need these in order to be polite about older agents

  5495 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5496 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5497 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5498 #endif // !JVMPI_VERSION_1

  5500   Thread* thread = ThreadLocalStorage::thread();

  5501   if (thread != NULL && thread->is_Java_thread()) {

  5502     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5503       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5504       ret = JNI_OK;

  5505       return ret;

  5507     } else if (version == JVMPI_VERSION_1 ||

  5508                version == JVMPI_VERSION_1_1 ||

  5509                version == JVMPI_VERSION_1_2) {

  5510       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5511       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5512       ret = JNI_EVERSION;

  5513       return ret;

  5514     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5515       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5516       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5517       ret = JNI_EVERSION;

  5518       return ret;

  5519     } else {

  5520       *penv = NULL;

  5521       ret = JNI_EVERSION;

  5522       return ret;

  5523     }

  5524   } else {

  5525     *penv = NULL;

  5526     ret = JNI_EDETACHED;

  5527     return ret;

  5528   }

  5529 }

  5532 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5533 #ifndef USDT2

  5534   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5535 #else /* USDT2 */

  5536   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5537                                                 vm, penv, _args);

  5538 #endif /* USDT2 */

  5539   if (!vm_created) {

  5540 #ifndef USDT2

  5541     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5542 #else /* USDT2 */

  5543   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5544                                                  (uint32_t) JNI_ERR);

  5545 #endif /* USDT2 */

  5546     return JNI_ERR;

  5547   }

  5549   JNIWrapper("AttachCurrentThreadAsDaemon");

  5550   jint ret = attach_current_thread(vm, penv, _args, true);

  5551 #ifndef USDT2

  5552   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5553 #else /* USDT2 */

  5554   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5555                                                  ret);

  5556 #endif /* USDT2 */

  5557   return ret;

  5558 }

  5561 } // End extern "C"

  5563 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5564     NULL,

  5565     NULL,

  5566     NULL,

  5568     jni_DestroyJavaVM,

  5569     jni_AttachCurrentThread,

  5570     jni_DetachCurrentThread,

  5571     jni_GetEnv,

  5572     jni_AttachCurrentThreadAsDaemon

  5573 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@59c790074993

src/share/vm/prims/jni.cpp