jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@edd76a5856f7

8005128: JSR 292: the mlvm redefineClassInBootstrap test crashes in ConstantPool::compare_entry_to
Summary: When constant pool is copied in merge_constant_pools the invokedynamic operands must be copied before.
Reviewed-by: coleenp, twisti
Contributed-by: serguei.spitsyn@oracle.com

     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/thread.inline.hpp"

    73 #include "runtime/vm_operations.hpp"

    74 #include "services/runtimeService.hpp"

    75 #include "trace/tracing.hpp"

    76 #include "trace/traceEventTypes.hpp"

    77 #include "utilities/defaultStream.hpp"

    78 #include "utilities/dtrace.hpp"

    79 #include "utilities/events.hpp"

    80 #include "utilities/histogram.hpp"

    81 #ifdef TARGET_OS_FAMILY_linux

    82 # include "os_linux.inline.hpp"

    83 #endif

    84 #ifdef TARGET_OS_FAMILY_solaris

    85 # include "os_solaris.inline.hpp"

    86 #endif

    87 #ifdef TARGET_OS_FAMILY_windows

    88 # include "os_windows.inline.hpp"

    89 #endif

    90 #ifdef TARGET_OS_FAMILY_bsd

    91 # include "os_bsd.inline.hpp"

    92 #endif

    94 static jint CurrentVersion = JNI_VERSION_1_6;

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

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

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

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

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

   102 //

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

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

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

   106 // a reference to it).

   107 //

   108 // Example:

   109 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   111 //   int return_value = 0;

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

   113 //   foo(CHECK_0)

   114 //   return_value = 5;

   115 //   return return_value;

   116 // JNI_END

   117 #ifndef USDT2

   118 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   120   DTRACE_ONLY(                                                             \

   121     class DTraceReturnProbeMark_##name {                                   \

   122      public:                                                               \

   123       const type& _ret_ref;                                                \

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

   125       ~DTraceReturnProbeMark_##name() {                                    \

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

   127       }                                                                    \

   128     }                                                                      \

   129   )

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

   131 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   133   DTRACE_ONLY(                                                             \

   134     class DTraceReturnProbeMark_##name {                                   \

   135      public:                                                               \

   136       ~DTraceReturnProbeMark_##name() {                                    \

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

   138       }                                                                    \

   139     }                                                                      \

   140   )

   142 #else /* USDT2 */

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

   145   DTRACE_ONLY(                                                             \

   146     class DTraceReturnProbeMark_##name {                                   \

   147      public:                                                               \

   148       const type& _ret_ref;                                                \

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

   150       ~DTraceReturnProbeMark_##name() {                                    \

   151         probe;                                                             \

   152       }                                                                    \

   153     }                                                                      \

   154   )

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

   156 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   157   DTRACE_ONLY(                                                             \

   158     class DTraceReturnProbeMark_##name {                                   \

   159      public:                                                               \

   160       ~DTraceReturnProbeMark_##name() {                                    \

   161         probe;                                                             \

   162       }                                                                    \

   163     }                                                                      \

   164   )

   165 #endif /* USDT2 */

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

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

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

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

   171 #define DT_VOID_RETURN_MARK(name) \

   172   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   177 // different behavior for Float/Double

   178 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   179 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   180 #define FP_SELECT_Char(intcode, fpcode)    intcode

   181 #define FP_SELECT_Short(intcode, fpcode)   intcode

   182 #define FP_SELECT_Object(intcode, fpcode)  intcode

   183 #define FP_SELECT_Int(intcode, fpcode)     intcode

   184 #define FP_SELECT_Long(intcode, fpcode)    intcode

   185 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   186 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   188   FP_SELECT_##TypeName(intcode, fpcode)

   190 #define COMMA ,

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

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

   194 #ifndef USDT2

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

   196   FP_SELECT(TypeName, \

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

   198 #else /* USDT2 */

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

   200   FP_SELECT(TypeName, \

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

   202 #endif /* USDT2 */

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

   204   FP_SELECT(TypeName, \

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

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

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

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

   212     uintptr_t as_uint = (uintptr_t) id;

   213     intptr_t offset = raw_instance_offset(id);

   214     if (is_checked_jfieldID(id)) {

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

   216         return false;

   217       }

   218     }

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

   220   } else {

   221     JNIid* result = (JNIid*) id;

   222 #ifdef ASSERT

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

   224 #else

   225     return result != NULL;

   226 #endif

   227   }

   228 }

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

   232   if (offset <= small_offset_mask) {

   233     Klass* field_klass = k;

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

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

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

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

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

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

   240       super_klass = field_klass->super();

   241     }

   242     debug_only(No_Safepoint_Verifier nosafepoint;)

   243     uintptr_t klass_hash = field_klass->identity_hash();

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

   245   } else {

   246 #if 0

   247     #ifndef PRODUCT

   248     {

   249       ResourceMark rm;

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

   251     }

   252     #endif

   253 #endif

   254     return 0;

   255   }

   256 }

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

   259   uintptr_t as_uint = (uintptr_t) id;

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

   261   do {

   262     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   265       return true;

   266     k = k->super();

   267   } while (k != NULL);

   268   return false;

   269 }

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

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

   273   uintptr_t as_uint = (uintptr_t) id;

   274   intptr_t offset = raw_instance_offset(id);

   275   if (VerifyJNIFields) {

   276     if (is_checked_jfieldID(id)) {

   277       guarantee(klass_hash_ok(k, id),

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

   279     } else {

   280 #if 0

   281       #ifndef PRODUCT

   282       if (Verbose) {

   283   ResourceMark rm;

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

   285       }

   286       #endif

   287 #endif

   288     }

   289   }

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

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

   292 }

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

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

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

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

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

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

   300 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   303 // Wrapper to trace JNI functions

   305 #ifdef ASSERT

   306   Histogram* JNIHistogram;

   307   static volatile jint JNIHistogram_lock = 0;

   309   class JNITraceWrapper : public StackObj {

   310    public:

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

   312       if (TraceJNICalls) {

   313         va_list ap;

   314         va_start(ap, format);

   315         tty->print("JNI ");

   316         tty->vprint_cr(format, ap);

   317         va_end(ap);

   318       }

   319     }

   320   };

   322   class JNIHistogramElement : public HistogramElement {

   323     public:

   324      JNIHistogramElement(const char* name);

   325   };

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

   328     _name = elementName;

   329     uintx count = 0;

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

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

   333         count +=1;

   334         if ( (WarnOnStalledSpinLock > 0)

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

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

   337         }

   338       }

   339      }

   342     if(JNIHistogram == NULL)

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

   345     JNIHistogram->add_element(this);

   346     Atomic::dec(&JNIHistogram_lock);

   347   }

   349   #define JNICountWrapper(arg)                                     \

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

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

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

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

   354 #else

   355   #define JNIWrapper(arg)

   356 #endif

   359 // Implementation of JNI entries

   361 #ifndef USDT2

   362 DT_RETURN_MARK_DECL(DefineClass, jclass);

   363 #else /* USDT2 */

   364 DT_RETURN_MARK_DECL(DefineClass, jclass

   365                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   366 #endif /* USDT2 */

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

   369                                   const jbyte *buf, jsize bufLen))

   370   JNIWrapper("DefineClass");

   372 #ifndef USDT2

   373   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   375 #else /* USDT2 */

   376   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   378 #endif /* USDT2 */

   379   jclass cls = NULL;

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

   382   TempNewSymbol class_name = NULL;

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

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

   385   if (name != NULL) {

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

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

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

   389       // into the constant pool.

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

   391     }

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

   393   }

   394   ResourceMark rm(THREAD);

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

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

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

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

   400     // If not, increment the corresponding counter

   401     if (ObjectSynchronizer::

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

   403         ObjectSynchronizer::owner_self) {

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

   405     }

   406   }

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

   408                                                      Handle(), &st, true,

   409                                                      CHECK_NULL);

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

   412     trace_class_resolution(k);

   413   }

   415   cls = (jclass)JNIHandles::make_local(

   416     env, k->java_mirror());

   417   return cls;

   418 JNI_END

   422 static bool first_time_FindClass = true;

   424 #ifndef USDT2

   425 DT_RETURN_MARK_DECL(FindClass, jclass);

   426 #else /* USDT2 */

   427 DT_RETURN_MARK_DECL(FindClass, jclass

   428                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   429 #endif /* USDT2 */

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

   432   JNIWrapper("FindClass");

   433 #ifndef USDT2

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

   435 #else /* USDT2 */

   436   HOTSPOT_JNI_FINDCLASS_ENTRY(

   437                               env, (char *)name);

   438 #endif /* USDT2 */

   440   jclass result = NULL;

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

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

   444   bool first_time = first_time_FindClass;

   445   first_time_FindClass = false;

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

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

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

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

   451   }

   453   //%note jni_3

   454   Handle loader;

   455   Handle protection_domain;

   456   // Find calling class

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

   458   if (k.not_null()) {

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

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

   461     // in the correct class context.

   462     if (loader.is_null() &&

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

   464       JavaValue result(T_OBJECT);

   465       JavaCalls::call_static(&result, k,

   466                                       vmSymbols::getFromClass_name(),

   467                                       vmSymbols::void_class_signature(),

   468                                       thread);

   469       if (HAS_PENDING_EXCEPTION) {

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

   471         CLEAR_PENDING_EXCEPTION;

   472         THROW_HANDLE_0(ex);

   473       }

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

   475       loader = Handle(THREAD,

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

   477       protection_domain = Handle(THREAD,

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

   479     }

   480   } else {

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

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

   483   }

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

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

   487                                         protection_domain, true, thread);

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

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

   491   }

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

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

   495   // Controlled by flag DelayCompilationDuringStartup.

   496   if (first_time && !CompileTheWorld)

   497     CompilationPolicy::completed_vm_startup();

   499   return result;

   500 JNI_END

   502 #ifndef USDT2

   503 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   504 #else /* USDT2 */

   505 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   506                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   507 #endif /* USDT2 */

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

   510   JNIWrapper("FromReflectedMethod");

   511 #ifndef USDT2

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

   513 #else /* USDT2 */

   514   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   515                                         env, method);

   516 #endif /* USDT2 */

   517   jmethodID ret = NULL;

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

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

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

   522   oop mirror     = NULL;

   523   int slot       = 0;

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

   526     mirror = java_lang_reflect_Constructor::clazz(reflected);

   527     slot   = java_lang_reflect_Constructor::slot(reflected);

   528   } else {

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

   530     mirror = java_lang_reflect_Method::clazz(reflected);

   531     slot   = java_lang_reflect_Method::slot(reflected);

   532   }

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

   535   KlassHandle k1(THREAD, k);

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

   537   k1()->initialize(CHECK_NULL);

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

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

   540   return ret;

   541 JNI_END

   543 #ifndef USDT2

   544 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   545 #else /* USDT2 */

   546 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   547                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   548 #endif /* USDT2 */

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

   551   JNIWrapper("FromReflectedField");

   552 #ifndef USDT2

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

   554 #else /* USDT2 */

   555   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   556                                        env, field);

   557 #endif /* USDT2 */

   558   jfieldID ret = NULL;

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

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

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

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

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

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

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

   568   KlassHandle k1(THREAD, k);

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

   570   k1()->initialize(CHECK_NULL);

   572   // First check if this is a static field

   573   if (modifiers & JVM_ACC_STATIC) {

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

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

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

   577     debug_only(id->set_is_static_field_id();)

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

   579     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   580     return ret;

   581   }

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

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

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

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

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

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

   589   return ret;

   590 JNI_END

   592 #ifndef USDT2

   593 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   594 #else /* USDT2 */

   595 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   596                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   597 #endif /* USDT2 */

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

   600   JNIWrapper("ToReflectedMethod");

   601 #ifndef USDT2

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

   603 #else /* USDT2 */

   604   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   606 #endif /* USDT2 */

   607   jobject ret = NULL;

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

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

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

   612   oop reflection_method;

   613   if (m->is_initializer()) {

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

   615   } else {

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

   617   }

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

   619   return ret;

   620 JNI_END

   622 #ifndef USDT2

   623 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   624 #else /* USDT2 */

   625 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   626                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   627 #endif /* USDT2 */

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

   630   JNIWrapper("GetSuperclass");

   631 #ifndef USDT2

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

   633 #else /* USDT2 */

   634   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   635                                   env, sub);

   636 #endif /* USDT2 */

   637   jclass obj = NULL;

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

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

   641   // primitive classes return NULL

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

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

   645   // arrays return Object

   646   // interfaces return NULL

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

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

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

   651   // return mirror for superclass

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

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

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

   655                                  ? SystemDictionary::Object_klass()

   656                                  : k->super() ) );

   657   assert(super == super2,

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

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

   660   return obj;

   661 JNI_END

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

   664   JNIWrapper("IsSubclassOf");

   665 #ifndef USDT2

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

   667 #else /* USDT2 */

   668   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   669                                      env, sub, super);

   670 #endif /* USDT2 */

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

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

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

   674       java_lang_Class::is_primitive(super_mirror)) {

   675     jboolean ret = (sub_mirror == super_mirror);

   676 #ifndef USDT2

   677     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   678 #else /* USDT2 */

   679     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   680                                         ret);

   681 #endif /* USDT2 */

   682     return ret;

   683   }

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

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

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

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

   688                    JNI_TRUE : JNI_FALSE;

   689 #ifndef USDT2

   690   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   691 #else /* USDT2 */

   692   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   693                                       ret);

   694 #endif /* USDT2 */

   695   return ret;

   696 JNI_END

   698 #ifndef USDT2

   699 DT_RETURN_MARK_DECL(Throw, jint);

   700 #else /* USDT2 */

   701 DT_RETURN_MARK_DECL(Throw, jint

   702                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   703 #endif /* USDT2 */

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

   706   JNIWrapper("Throw");

   707 #ifndef USDT2

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

   709 #else /* USDT2 */

   710   HOTSPOT_JNI_THROW_ENTRY(

   711  env, obj);

   712 #endif /* USDT2 */

   713   jint ret = JNI_OK;

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

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

   717   ShouldNotReachHere();

   718 JNI_END

   720 #ifndef USDT2

   721 DT_RETURN_MARK_DECL(ThrowNew, jint);

   722 #else /* USDT2 */

   723 DT_RETURN_MARK_DECL(ThrowNew, jint

   724                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   725 #endif /* USDT2 */

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

   728   JNIWrapper("ThrowNew");

   729 #ifndef USDT2

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

   731 #else /* USDT2 */

   732   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   734 #endif /* USDT2 */

   735   jint ret = JNI_OK;

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

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

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

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

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

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

   743   ShouldNotReachHere();

   744 JNI_END

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

   748 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   754 // state transition.

   756 static void jni_check_async_exceptions(JavaThread *thread) {

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

   758   thread->check_and_handle_async_exceptions();

   759 }

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

   762   JNIWrapper("ExceptionOccurred");

   763 #ifndef USDT2

   764   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   765 #else /* USDT2 */

   766   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   767                                       env);

   768 #endif /* USDT2 */

   769   jni_check_async_exceptions(thread);

   770   oop exception = thread->pending_exception();

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

   772 #ifndef USDT2

   773   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   774 #else /* USDT2 */

   775   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   776                                        ret);

   777 #endif /* USDT2 */

   778   return ret;

   779 JNI_END

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

   783   JNIWrapper("ExceptionDescribe");

   784 #ifndef USDT2

   785   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   786 #else /* USDT2 */

   787   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   788                                       env);

   789 #endif /* USDT2 */

   790   if (thread->has_pending_exception()) {

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

   792     thread->clear_pending_exception();

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

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

   795     } else {

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

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

   798         ResourceMark rm(THREAD);

   799         jio_fprintf(defaultStream::error_stream(),

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

   801       }

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

   803         JavaValue result(T_VOID);

   804         JavaCalls::call_virtual(&result,

   805                                 ex,

   806                                 KlassHandle(THREAD,

   807                                   SystemDictionary::Throwable_klass()),

   808                                 vmSymbols::printStackTrace_name(),

   809                                 vmSymbols::void_method_signature(),

   810                                 THREAD);

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

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

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

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

   815         // is expected.

   816         CLEAR_PENDING_EXCEPTION;

   817       } else {

   818         ResourceMark rm(THREAD);

   819         jio_fprintf(defaultStream::error_stream(),

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

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

   822       }

   823     }

   824   }

   825 #ifndef USDT2

   826   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   827 #else /* USDT2 */

   828   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   829                                        );

   830 #endif /* USDT2 */

   831 JNI_END

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

   835   JNIWrapper("ExceptionClear");

   836 #ifndef USDT2

   837   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   838 #else /* USDT2 */

   839   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   840                                    env);

   841 #endif /* USDT2 */

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

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

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

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

   847     state->set_exception_caught();

   848   }

   849   thread->clear_pending_exception();

   850 #ifndef USDT2

   851   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   852 #else /* USDT2 */

   853   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   854                                     );

   855 #endif /* USDT2 */

   856 JNI_END

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

   860   JNIWrapper("FatalError");

   861 #ifndef USDT2

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

   863 #else /* USDT2 */

   864   HOTSPOT_JNI_FATALERROR_ENTRY(

   865                                env, (char *) msg);

   866 #endif /* USDT2 */

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

   868   thread->print_stack();

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

   870 JNI_END

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

   874   JNIWrapper("PushLocalFrame");

   875 #ifndef USDT2

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

   877 #else /* USDT2 */

   878   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   879                                    env, capacity);

   880 #endif /* USDT2 */

   881   //%note jni_11

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

   883 #ifndef USDT2

   884     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   885 #else /* USDT2 */

   886     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   887                                       (uint32_t)JNI_ERR);

   888 #endif /* USDT2 */

   889     return JNI_ERR;

   890   }

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

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

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

   894   new_handles->set_pop_frame_link(old_handles);

   895   thread->set_active_handles(new_handles);

   896   jint ret = JNI_OK;

   897 #ifndef USDT2

   898   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   899 #else /* USDT2 */

   900   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   901                                     ret);

   902 #endif /* USDT2 */

   903   return ret;

   904 JNI_END

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

   908   JNIWrapper("PopLocalFrame");

   909 #ifndef USDT2

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

   911 #else /* USDT2 */

   912   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   913                                   env, result);

   914 #endif /* USDT2 */

   915   //%note jni_11

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

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

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

   919   if (new_handles != NULL) {

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

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

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

   923     // the release_block call will release the blocks.

   924     thread->set_active_handles(new_handles);

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

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

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

   928   }

   929 #ifndef USDT2

   930   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   931 #else /* USDT2 */

   932   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   933                                    result);

   934 #endif /* USDT2 */

   935   return result;

   936 JNI_END

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

   940   JNIWrapper("NewGlobalRef");

   941 #ifndef USDT2

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

   943 #else /* USDT2 */

   944   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   945                                  env, ref);

   946 #endif /* USDT2 */

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

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

   949 #ifndef USDT2

   950   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   951 #else /* USDT2 */

   952   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   953                                   ret);

   954 #endif /* USDT2 */

   955   return ret;

   956 JNI_END

   958 // Must be JNI_ENTRY (with HandleMark)

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

   960   JNIWrapper("DeleteGlobalRef");

   961 #ifndef USDT2

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

   963 #else /* USDT2 */

   964   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   965                                     env, ref);

   966 #endif /* USDT2 */

   967   JNIHandles::destroy_global(ref);

   968 #ifndef USDT2

   969   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   970 #else /* USDT2 */

   971   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   972                                      );

   973 #endif /* USDT2 */

   974 JNI_END

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

   977   JNIWrapper("DeleteLocalRef");

   978 #ifndef USDT2

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

   980 #else /* USDT2 */

   981   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   982                                    env, obj);

   983 #endif /* USDT2 */

   984   JNIHandles::destroy_local(obj);

   985 #ifndef USDT2

   986   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   987 #else /* USDT2 */

   988   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   989                                     );

   990 #endif /* USDT2 */

   991 JNI_END

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

   994   JNIWrapper("IsSameObject");

   995 #ifndef USDT2

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

   997 #else /* USDT2 */

   998   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

   999                                  env, r1, r2);

  1000 #endif /* USDT2 */

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

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

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

  1004 #ifndef USDT2

  1005   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1006 #else /* USDT2 */

  1007   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1008                                   ret);

  1009 #endif /* USDT2 */

  1010   return ret;

  1011 JNI_END

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

  1015   JNIWrapper("NewLocalRef");

  1016 #ifndef USDT2

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

  1018 #else /* USDT2 */

  1019   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1020                                 env, ref);

  1021 #endif /* USDT2 */

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

  1023 #ifndef USDT2

  1024   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1025 #else /* USDT2 */

  1026   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1027                                  ret);

  1028 #endif /* USDT2 */

  1029   return ret;

  1030 JNI_END

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

  1033   JNIWrapper("EnsureLocalCapacity");

  1034 #ifndef USDT2

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

  1036 #else /* USDT2 */

  1037   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1038                                         env, capacity);

  1039 #endif /* USDT2 */

  1040   jint ret;

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

  1042     ret = JNI_OK;

  1043   } else {

  1044     ret = JNI_ERR;

  1045   }

  1046 #ifndef USDT2

  1047   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1048 #else /* USDT2 */

  1049   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1050                                          ret);

  1051 #endif /* USDT2 */

  1052   return ret;

  1053 JNI_END

  1055 // Return the Handle Type

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

  1057   JNIWrapper("GetObjectRefType");

  1058 #ifndef USDT2

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

  1060 #else /* USDT2 */

  1061   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1062                                      env, obj);

  1063 #endif /* USDT2 */

  1064   jobjectRefType ret;

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

  1066       JNIHandles::is_frame_handle(thread, obj))

  1067     ret = JNILocalRefType;

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

  1069     ret = JNIGlobalRefType;

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

  1071     ret = JNIWeakGlobalRefType;

  1072   else

  1073     ret = JNIInvalidRefType;

  1074 #ifndef USDT2

  1075   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1076 #else /* USDT2 */

  1077   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1078                                       (void *) ret);

  1079 #endif /* USDT2 */

  1080   return ret;

  1081 JNI_END

  1084 class JNI_ArgumentPusher : public SignatureIterator {

  1085  protected:

  1086   JavaCallArguments*  _arguments;

  1088   virtual void get_bool   () = 0;

  1089   virtual void get_char   () = 0;

  1090   virtual void get_short  () = 0;

  1091   virtual void get_byte   () = 0;

  1092   virtual void get_int    () = 0;

  1093   virtual void get_long   () = 0;

  1094   virtual void get_float  () = 0;

  1095   virtual void get_double () = 0;

  1096   virtual void get_object () = 0;

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

  1099     this->_return_type = T_ILLEGAL;

  1100     _arguments = NULL;

  1101   }

  1103  public:

  1104   virtual void iterate( uint64_t fingerprint ) = 0;

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

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

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

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

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

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

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

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

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

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

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

  1118   inline void do_void()                     { }

  1120   JavaCallArguments* arguments()     { return _arguments; }

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

  1122 };

  1125 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1126  protected:

  1127   va_list _ap;

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

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

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

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

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

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

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

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

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

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

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

  1143   inline void set_ap(va_list rap) {

  1144 #ifdef va_copy

  1145     va_copy(_ap, rap);

  1146 #elif defined (__va_copy)

  1147     __va_copy(_ap, rap);

  1148 #else

  1149     _ap = rap;

  1150 #endif

  1151   }

  1153  public:

  1154   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1155        : JNI_ArgumentPusher(signature) {

  1156     set_ap(rap);

  1157   }

  1158   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

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

  1160     set_ap(rap);

  1161   }

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

  1164   void iterate( uint64_t fingerprint ) {

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

  1166     else {

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

  1168                                   result_feature_mask);

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

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

  1172       while ( 1 ) {

  1173         switch ( fingerprint & parameter_feature_mask ) {

  1174           case bool_parm:

  1175           case char_parm:

  1176           case short_parm:

  1177           case byte_parm:

  1178           case int_parm:

  1179             get_int();

  1180             break;

  1181           case obj_parm:

  1182             get_object();

  1183             break;

  1184           case long_parm:

  1185             get_long();

  1186             break;

  1187           case float_parm:

  1188             get_float();

  1189             break;

  1190           case double_parm:

  1191             get_double();

  1192             break;

  1193           case done_parm:

  1194             return;

  1195             break;

  1196           default:

  1197             ShouldNotReachHere();

  1198             break;

  1199         }

  1200         fingerprint >>= parameter_feature_size;

  1201       }

  1202     }

  1203   }

  1204 };

  1207 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1208  protected:

  1209   const jvalue *_ap;

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

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

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

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

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

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

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

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

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

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

  1224  public:

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

  1226        : JNI_ArgumentPusher(signature) {

  1227     set_ap(rap);

  1228   }

  1229   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

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

  1231     set_ap(rap);

  1232   }

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

  1235   void iterate( uint64_t fingerprint ) {

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

  1237     else {

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

  1239                                   result_feature_mask);

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

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

  1242       while ( 1 ) {

  1243         switch ( fingerprint & parameter_feature_mask ) {

  1244           case bool_parm:

  1245             get_bool();

  1246             break;

  1247           case char_parm:

  1248             get_char();

  1249             break;

  1250           case short_parm:

  1251             get_short();

  1252             break;

  1253           case byte_parm:

  1254             get_byte();

  1255             break;

  1256           case int_parm:

  1257             get_int();

  1258             break;

  1259           case obj_parm:

  1260             get_object();

  1261             break;

  1262           case long_parm:

  1263             get_long();

  1264             break;

  1265           case float_parm:

  1266             get_float();

  1267             break;

  1268           case double_parm:

  1269             get_double();

  1270             break;

  1271           case done_parm:

  1272             return;

  1273             break;

  1274           default:

  1275             ShouldNotReachHere();

  1276             break;

  1277         }

  1278         fingerprint >>= parameter_feature_size;

  1279       }

  1280     }

  1281   }

  1282 };

  1285 enum JNICallType {

  1286   JNI_STATIC,

  1287   JNI_VIRTUAL,

  1288   JNI_NONVIRTUAL

  1289 };

  1291 static methodHandle jni_resolve_interface_call(Handle recv, methodHandle method, TRAPS) {

  1292   assert(!method.is_null() , "method should not be null");

  1294   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1295   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1296   KlassHandle spec_klass (THREAD, method->method_holder());

  1297   Symbol*  name  = method->name();

  1298   Symbol*  signature  = method->signature();

  1299   CallInfo info;

  1300   LinkResolver::resolve_interface_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1301   return info.selected_method();

  1302 }

  1304 static methodHandle jni_resolve_virtual_call(Handle recv, methodHandle method, TRAPS) {

  1305   assert(!method.is_null() , "method should not be null");

  1307   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1308   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1309   KlassHandle spec_klass (THREAD, method->method_holder());

  1310   Symbol*  name  = method->name();

  1311   Symbol*  signature  = method->signature();

  1312   CallInfo info;

  1313   LinkResolver::resolve_virtual_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1314   return info.selected_method();

  1315 }

  1319 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1320   methodHandle method(THREAD, Method::resolve_jmethod_id(method_id));

  1322   // Create object to hold arguments for the JavaCall, and associate it with

  1323   // the jni parser

  1324   ResourceMark rm(THREAD);

  1325   int number_of_parameters = method->size_of_parameters();

  1326   JavaCallArguments java_args(number_of_parameters);

  1327   args->set_java_argument_object(&java_args);

  1329   assert(method->is_static(), "method should be static");

  1331   // Fill out JavaCallArguments object

  1332   args->iterate( Fingerprinter(method).fingerprint() );

  1333   // Initialize result type

  1334   result->set_type(args->get_ret_type());

  1336   // Invoke the method. Result is returned as oop.

  1337   JavaCalls::call(result, method, &java_args, CHECK);

  1339   // Convert result

  1340   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1341     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1342   }

  1343 }

  1346 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1347   oop recv = JNIHandles::resolve(receiver);

  1348   if (recv == NULL) {

  1349     THROW(vmSymbols::java_lang_NullPointerException());

  1350   }

  1351   Handle h_recv(THREAD, recv);

  1353   int number_of_parameters;

  1354   Method* selected_method;

  1355   {

  1356     Method* m = Method::resolve_jmethod_id(method_id);

  1357     number_of_parameters = m->size_of_parameters();

  1358     Klass* holder = m->method_holder();

  1359     if (!(holder)->is_interface()) {

  1360       // non-interface call -- for that little speed boost, don't handlize

  1361       debug_only(No_Safepoint_Verifier nosafepoint;)

  1362       if (call_type == JNI_VIRTUAL) {

  1363         // jni_GetMethodID makes sure class is linked and initialized

  1364         // so m should have a valid vtable index.

  1365         int vtbl_index = m->vtable_index();

  1366         if (vtbl_index != Method::nonvirtual_vtable_index) {

  1367           Klass* k = h_recv->klass();

  1368           // k might be an arrayKlassOop but all vtables start at

  1369           // the same place. The cast is to avoid virtual call and assertion.

  1370           InstanceKlass *ik = (InstanceKlass*)k;

  1371           selected_method = ik->method_at_vtable(vtbl_index);

  1372         } else {

  1373           // final method

  1374           selected_method = m;

  1375         }

  1376       } else {

  1377         // JNI_NONVIRTUAL call

  1378         selected_method = m;

  1379       }

  1380     } else {

  1381       // interface call

  1382       KlassHandle h_holder(THREAD, holder);

  1384       int itbl_index = m->cached_itable_index();

  1385       if (itbl_index == -1) {

  1386         itbl_index = klassItable::compute_itable_index(m);

  1387         m->set_cached_itable_index(itbl_index);

  1388         // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again

  1389       }

  1390       Klass* k = h_recv->klass();

  1391       selected_method = InstanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1392     }

  1393   }

  1395   methodHandle method(THREAD, selected_method);

  1397   // Create object to hold arguments for the JavaCall, and associate it with

  1398   // the jni parser

  1399   ResourceMark rm(THREAD);

  1400   JavaCallArguments java_args(number_of_parameters);

  1401   args->set_java_argument_object(&java_args);

  1403   // handle arguments

  1404   assert(!method->is_static(), "method should not be static");

  1405   args->push_receiver(h_recv); // Push jobject handle

  1407   // Fill out JavaCallArguments object

  1408   args->iterate( Fingerprinter(method).fingerprint() );

  1409   // Initialize result type

  1410   result->set_type(args->get_ret_type());

  1412   // Invoke the method. Result is returned as oop.

  1413   JavaCalls::call(result, method, &java_args, CHECK);

  1415   // Convert result

  1416   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1417     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1418   }

  1419 }

  1422 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1423   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1424   k()->check_valid_for_instantiation(false, CHECK_NULL);

  1425   InstanceKlass::cast(k())->initialize(CHECK_NULL);

  1426   instanceOop ih = InstanceKlass::cast(k())->allocate_instance(THREAD);

  1427   return ih;

  1428 }

  1430 #ifndef USDT2

  1431 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1432 #else /* USDT2 */

  1433 DT_RETURN_MARK_DECL(AllocObject, jobject

  1434                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1435 #endif /* USDT2 */

  1437 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1438   JNIWrapper("AllocObject");

  1440 #ifndef USDT2

  1441   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1442 #else /* USDT2 */

  1443   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1444                                 env, clazz);

  1445 #endif /* USDT2 */

  1446   jobject ret = NULL;

  1447   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1449   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1450   ret = JNIHandles::make_local(env, i);

  1451   return ret;

  1452 JNI_END

  1454 #ifndef USDT2

  1455 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1456 #else /* USDT2 */

  1457 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1458                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1459 #endif /* USDT2 */

  1461 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1462   JNIWrapper("NewObjectA");

  1463 #ifndef USDT2

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

  1465 #else /* USDT2 */

  1466   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1467                                env, clazz, (uintptr_t) methodID);

  1468 #endif /* USDT2 */

  1469   jobject obj = NULL;

  1470   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1472   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1474   JavaValue jvalue(T_VOID);

  1475   JNI_ArgumentPusherArray ap(methodID, args);

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

  1477   return obj;

  1478 JNI_END

  1480 #ifndef USDT2

  1481 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1482 #else /* USDT2 */

  1483 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1484                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1485 #endif /* USDT2 */

  1487 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1488   JNIWrapper("NewObjectV");

  1489 #ifndef USDT2

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

  1491 #else /* USDT2 */

  1492   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1493                                env, clazz, (uintptr_t) methodID);

  1494 #endif /* USDT2 */

  1495   jobject obj = NULL;

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

  1498   instanceOop i = alloc_object(clazz, CHECK_NULL);

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

  1500   JavaValue jvalue(T_VOID);

  1501   JNI_ArgumentPusherVaArg ap(methodID, args);

  1502   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1503   return obj;

  1504 JNI_END

  1506 #ifndef USDT2

  1507 DT_RETURN_MARK_DECL(NewObject, jobject);

  1508 #else /* USDT2 */

  1509 DT_RETURN_MARK_DECL(NewObject, jobject

  1510                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1511 #endif /* USDT2 */

  1513 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1514   JNIWrapper("NewObject");

  1515 #ifndef USDT2

  1516   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1517 #else /* USDT2 */

  1518   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1519                               env, clazz, (uintptr_t) methodID);

  1520 #endif /* USDT2 */

  1521   jobject obj = NULL;

  1522   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1524   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1525   obj = JNIHandles::make_local(env, i);

  1526   va_list args;

  1527   va_start(args, methodID);

  1528   JavaValue jvalue(T_VOID);

  1529   JNI_ArgumentPusherVaArg ap(methodID, args);

  1530   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1531   va_end(args);

  1532   return obj;

  1533 JNI_END

  1536 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1537   JNIWrapper("GetObjectClass");

  1538 #ifndef USDT2

  1539   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1540 #else /* USDT2 */

  1541   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1542                                    env, obj);

  1543 #endif /* USDT2 */

  1544   Klass* k = JNIHandles::resolve_non_null(obj)->klass();

  1545   jclass ret =

  1546     (jclass) JNIHandles::make_local(env, k->java_mirror());

  1547 #ifndef USDT2

  1548   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1549 #else /* USDT2 */

  1550   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1551                                     ret);

  1552 #endif /* USDT2 */

  1553   return ret;

  1554 JNI_END

  1556 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1557   JNIWrapper("IsInstanceOf");

  1558 #ifndef USDT2

  1559   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1560 #else /* USDT2 */

  1561   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1562                                  env, obj, clazz);

  1563 #endif /* USDT2 */

  1564   jboolean ret = JNI_TRUE;

  1565   if (obj != NULL) {

  1566     ret = JNI_FALSE;

  1567     Klass* k = java_lang_Class::as_Klass(

  1568       JNIHandles::resolve_non_null(clazz));

  1569     if (k != NULL) {

  1570       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1571     }

  1572   }

  1573 #ifndef USDT2

  1574   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1575 #else /* USDT2 */

  1576   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1577                                   ret);

  1578 #endif /* USDT2 */

  1579   return ret;

  1580 JNI_END

  1583 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1584                                const char *sig, bool is_static, TRAPS) {

  1585   // %%%% This code should probably just call into a method in the LinkResolver

  1586   //

  1587   // The class should have been loaded (we have an instance of the class

  1588   // passed in) so the method and signature should already be in the symbol

  1589   // table.  If they're not there, the method doesn't exist.

  1590   const char *name_to_probe = (name_str == NULL)

  1591                         ? vmSymbols::object_initializer_name()->as_C_string()

  1592                         : name_str;

  1593   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1594   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1596   if (name == NULL || signature == NULL) {

  1597     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1598   }

  1600   // Throw a NoSuchMethodError exception if we have an instance of a

  1601   // primitive java.lang.Class

  1602   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

  1603     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1604   }

  1606   KlassHandle klass(THREAD,

  1607                java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  1609   // Make sure class is linked and initialized before handing id's out to

  1610   // Method*s.

  1611   klass()->initialize(CHECK_NULL);

  1613   Method* m;

  1614   if (name == vmSymbols::object_initializer_name() ||

  1615       name == vmSymbols::class_initializer_name()) {

  1616     // Never search superclasses for constructors

  1617     if (klass->oop_is_instance()) {

  1618       m = InstanceKlass::cast(klass())->find_method(name, signature);

  1619     } else {

  1620       m = NULL;

  1621     }

  1622   } else {

  1623     m = klass->lookup_method(name, signature);

  1624     // Look up interfaces

  1625     if (m == NULL && klass->oop_is_instance()) {

  1626       m = InstanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,

  1627                                                                    signature);

  1628     }

  1629   }

  1630   if (m == NULL || (m->is_static() != is_static)) {

  1631     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1632   }

  1633   return m->jmethod_id();

  1634 }

  1637 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1638           const char *name, const char *sig))

  1639   JNIWrapper("GetMethodID");

  1640 #ifndef USDT2

  1641   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1642 #else /* USDT2 */

  1643   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1644                                 env, clazz, (char *) name, (char *) sig);

  1645 #endif /* USDT2 */

  1646   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1647 #ifndef USDT2

  1648   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1649 #else /* USDT2 */

  1650   HOTSPOT_JNI_GETMETHODID_RETURN(

  1651                                  (uintptr_t) ret);

  1652 #endif /* USDT2 */

  1653   return ret;

  1654 JNI_END

  1657 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1658           const char *name, const char *sig))

  1659   JNIWrapper("GetStaticMethodID");

  1660 #ifndef USDT2

  1661   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1662 #else /* USDT2 */

  1663   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1664                                       env, (char *) clazz, (char *) name, (char *)sig);

  1665 #endif /* USDT2 */

  1666   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1667 #ifndef USDT2

  1668   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1669 #else /* USDT2 */

  1670   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1671                                        (uintptr_t) ret);

  1672 #endif /* USDT2 */

  1673   return ret;

  1674 JNI_END

  1678 //

  1679 // Calling Methods

  1680 //

  1682 #ifndef USDT2

  1683 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1684 \

  1685   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

  1686   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType);\

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

  1688 \

  1689 JNI_ENTRY(ResultType, \

  1690           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1691   JNIWrapper("Call" XSTR(Result) "Method"); \

  1692 \

  1693   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1694   ResultType ret = 0;\

  1695   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1696                      (const ResultType&)ret);\

  1697 \

  1698   va_list args; \

  1699   va_start(args, methodID); \

  1700   JavaValue jvalue(Tag); \

  1701   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1702   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1703   va_end(args); \

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

  1705   return ret;\

  1706 JNI_END \

  1707 \

  1708 \

  1709 JNI_ENTRY(ResultType, \

  1710           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

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

  1712 \

  1713   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodV__entry, env, obj, methodID); \

  1714   ResultType ret = 0;\

  1715   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1716                      (const ResultType&)ret);\

  1717 \

  1718   JavaValue jvalue(Tag); \

  1719   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1720   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1721   ret = jvalue.get_##ResultType(); \

  1722   return ret;\

  1723 JNI_END \

  1724 \

  1725 \

  1726 JNI_ENTRY(ResultType, \

  1727           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1728   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1729   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1730   ResultType ret = 0;\

  1731   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1732                      (const ResultType&)ret);\

  1733 \

  1734   JavaValue jvalue(Tag); \

  1735   JNI_ArgumentPusherArray ap(methodID, args); \

  1736   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1737   ret = jvalue.get_##ResultType(); \

  1738   return ret;\

  1739 JNI_END

  1741 // the runtime type of subword integral basic types is integer

  1742 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1743 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1744 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1745 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1747 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1748 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1749 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1750 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1751 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1753 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1754 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1755 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1757 #else /* USDT2 */

  1759 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1760                           , EntryProbe, ReturnProbe)    \

  1761 \

  1762   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1763                           , ReturnProbe);                          \

  1764 \

  1765 JNI_ENTRY(ResultType, \

  1766           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1767   JNIWrapper("Call" XSTR(Result) "Method"); \

  1768 \

  1769   EntryProbe; \

  1770   ResultType ret = 0;\

  1771   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1772                      (const ResultType&)ret);\

  1773 \

  1774   va_list args; \

  1775   va_start(args, methodID); \

  1776   JavaValue jvalue(Tag); \

  1777   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1778   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1779   va_end(args); \

  1780   ret = jvalue.get_##ResultType(); \

  1781   return ret;\

  1782 JNI_END

  1784 // the runtime type of subword integral basic types is integer

  1785 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

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

  1787                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1788 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

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

  1790                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1791 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

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

  1793                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1794 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

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

  1796                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1798 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

  1799                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1800                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1801 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

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

  1803                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1804 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

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

  1806                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1807 // Float and double probes don't return value because dtrace doesn't currently support it

  1808 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

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

  1810                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1811 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

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

  1813                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1815 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1816                           , EntryProbe, ReturnProbe)    \

  1817 \

  1818   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1819                           , ReturnProbe);                          \

  1820 \

  1821 JNI_ENTRY(ResultType, \

  1822           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1823   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1824 \

  1825   EntryProbe;\

  1826   ResultType ret = 0;\

  1827   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1828                      (const ResultType&)ret);\

  1829 \

  1830   JavaValue jvalue(Tag); \

  1831   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1832   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1833   ret = jvalue.get_##ResultType(); \

  1834   return ret;\

  1835 JNI_END

  1837 // the runtime type of subword integral basic types is integer

  1838 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

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

  1840                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1841 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

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

  1843                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1844 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

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

  1846                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1847 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

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

  1849                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1851 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

  1852                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1853                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1854 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

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

  1856                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1857 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1859                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1860 // Float and double probes don't return value because dtrace doesn't currently support it

  1861 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

  1862                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1863                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1864 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

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

  1866                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1868 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1869                           , EntryProbe, ReturnProbe)    \

  1870 \

  1871   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1872                           , ReturnProbe);                          \

  1873 \

  1874 JNI_ENTRY(ResultType, \

  1875           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1876   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1877   EntryProbe; \

  1878   ResultType ret = 0;\

  1879   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1880                      (const ResultType&)ret);\

  1881 \

  1882   JavaValue jvalue(Tag); \

  1883   JNI_ArgumentPusherArray ap(methodID, args); \

  1884   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1885   ret = jvalue.get_##ResultType(); \

  1886   return ret;\

  1887 JNI_END

  1889 // the runtime type of subword integral basic types is integer

  1890 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

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

  1892                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1893 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

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

  1895                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1896 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

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

  1898                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1899 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

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

  1901                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1903 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

  1904                   , HOTSPOT_JNI_CALLOBJECTMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1905                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1906 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

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

  1908                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1909 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

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

  1911                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1912 // Float and double probes don't return value because dtrace doesn't currently support it

  1913 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

  1914                   , HOTSPOT_JNI_CALLFLOATMETHOD_ENTRY(env, obj, (uintptr_t)methodID),

  1915                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1916 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

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

  1918                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1920 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1921 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1922 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1924 #endif /* USDT2 */

  1926 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1927   JNIWrapper("CallVoidMethod");

  1928 #ifndef USDT2

  1929   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1930 #else /* USDT2 */

  1931   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1932                                    env, obj, (uintptr_t) methodID);

  1933 #endif /* USDT2 */

  1934   DT_VOID_RETURN_MARK(CallVoidMethod);

  1936   va_list args;

  1937   va_start(args, methodID);

  1938   JavaValue jvalue(T_VOID);

  1939   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  1941   va_end(args);

  1942 JNI_END

  1945 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1946   JNIWrapper("CallVoidMethodV");

  1947 #ifndef USDT2

  1948   DTRACE_PROBE3(hotspot_jni, CallVoidMethodV__entry, env, obj, methodID);

  1949 #else /* USDT2 */

  1950   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1951                                     env, obj, (uintptr_t) methodID);

  1952 #endif /* USDT2 */

  1953   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1955   JavaValue jvalue(T_VOID);

  1956   JNI_ArgumentPusherVaArg ap(methodID, args);

  1957   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1958 JNI_END

  1961 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1962   JNIWrapper("CallVoidMethodA");

  1963 #ifndef USDT2

  1964   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1965 #else /* USDT2 */

  1966   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1967                                     env, obj, (uintptr_t) methodID);

  1968 #endif /* USDT2 */

  1969   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1971   JavaValue jvalue(T_VOID);

  1972   JNI_ArgumentPusherArray ap(methodID, args);

  1973   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1974 JNI_END

  1977 #ifndef USDT2

  1978 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1979 \

  1980   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

  1981   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType);\

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

  1983 \

  1984 JNI_ENTRY(ResultType, \

  1985           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1986   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1987 \

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

  1989   ResultType ret;\

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

  1991                      (const ResultType&)ret);\

  1992 \

  1993   va_list args; \

  1994   va_start(args, methodID); \

  1995   JavaValue jvalue(Tag); \

  1996   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1997   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  1998   va_end(args); \

  1999   ret = jvalue.get_##ResultType(); \

  2000   return ret;\

  2001 JNI_END \

  2002 \

  2003 JNI_ENTRY(ResultType, \

  2004           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2005   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  2006   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  2007   ResultType ret;\

  2008   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2009                      (const ResultType&)ret);\

  2010 \

  2011   JavaValue jvalue(Tag); \

  2012   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2013   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2014   ret = jvalue.get_##ResultType(); \

  2015   return ret;\

  2016 JNI_END \

  2017 \

  2018 JNI_ENTRY(ResultType, \

  2019           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2020   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2021   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  2022   ResultType ret;\

  2023   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2024                      (const ResultType&)ret);\

  2025 \

  2026   JavaValue jvalue(Tag); \

  2027   JNI_ArgumentPusherArray ap(methodID, args); \

  2028   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2029   ret = jvalue.get_##ResultType(); \

  2030   return ret;\

  2031 JNI_END

  2033 // the runtime type of subword integral basic types is integer

  2034 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2035 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2036 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2037 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2039 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2040 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2041 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2042 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2043 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2046 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2047 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2048 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2050 #else /* USDT2 */

  2052 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2053                                     , EntryProbe, ReturnProbe)      \

  2054 \

  2055   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2056                           , ReturnProbe);\

  2057 \

  2058 JNI_ENTRY(ResultType, \

  2059           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2060   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2061 \

  2062   EntryProbe;\

  2063   ResultType ret;\

  2064   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2065                      (const ResultType&)ret);\

  2066 \

  2067   va_list args; \

  2068   va_start(args, methodID); \

  2069   JavaValue jvalue(Tag); \

  2070   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2071   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2072   va_end(args); \

  2073   ret = jvalue.get_##ResultType(); \

  2074   return ret;\

  2075 JNI_END

  2077 // the runtime type of subword integral basic types is integer

  2078 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2080                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2081 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

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

  2083                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2084 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

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

  2086                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2087 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

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

  2089                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2091 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

  2092                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2093                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2094 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

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

  2096                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2097 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

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

  2099 // Float and double probes don't return value because dtrace doesn't currently support it

  2100                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2101 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

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

  2103                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2104 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

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

  2106                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2108 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2109                                     , EntryProbe, ReturnProbe)      \

  2110 \

  2111   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2112                           , ReturnProbe);\

  2113 \

  2114 JNI_ENTRY(ResultType, \

  2115           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2116   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2117 \

  2118   EntryProbe;\

  2119   ResultType ret;\

  2120   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2121                      (const ResultType&)ret);\

  2122 \

  2123   JavaValue jvalue(Tag); \

  2124   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2125   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2126   ret = jvalue.get_##ResultType(); \

  2127   return ret;\

  2128 JNI_END

  2130 // the runtime type of subword integral basic types is integer

  2131 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2133                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2134 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

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

  2136                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2137 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

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

  2139                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2140 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

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

  2142                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2144 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

  2145                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2146                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2147 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

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

  2149                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2150 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

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

  2152 // Float and double probes don't return value because dtrace doesn't currently support it

  2153                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2154 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

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

  2156                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2157 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

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

  2159                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2161 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2162                                     , EntryProbe, ReturnProbe)      \

  2163 \

  2164   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2165                           , ReturnProbe);\

  2166 \

  2167 JNI_ENTRY(ResultType, \

  2168           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2169   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2170 \

  2171   EntryProbe;\

  2172   ResultType ret;\

  2173   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2174                      (const ResultType&)ret);\

  2175 \

  2176   JavaValue jvalue(Tag); \

  2177   JNI_ArgumentPusherArray ap(methodID, args); \

  2178   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2179   ret = jvalue.get_##ResultType(); \

  2180   return ret;\

  2181 JNI_END

  2183 // the runtime type of subword integral basic types is integer

  2184 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2186                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2187 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

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

  2189                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2190 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

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

  2192                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2193 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

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

  2195                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2197 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

  2198                             , HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2199                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2200 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

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

  2202                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2203 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2205 // Float and double probes don't return value because dtrace doesn't currently support it

  2206                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2207 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

  2208                             , HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_ENTRY(env, obj, cls, (uintptr_t)methodID),

  2209                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2210 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

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

  2212                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2214 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2215                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2216 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2217                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2218 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2219                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2220 #endif /* USDT2 */

  2222 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2223   JNIWrapper("CallNonvirtualVoidMethod");

  2225 #ifndef USDT2

  2226   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2227                env, obj, cls, methodID);

  2228 #else /* USDT2 */

  2229   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2230                env, obj, cls, (uintptr_t) methodID);

  2231 #endif /* USDT2 */

  2232   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2234   va_list args;

  2235   va_start(args, methodID);

  2236   JavaValue jvalue(T_VOID);

  2237   JNI_ArgumentPusherVaArg ap(methodID, args);

  2238   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2239   va_end(args);

  2240 JNI_END

  2243 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2244   JNIWrapper("CallNonvirtualVoidMethodV");

  2246 #ifndef USDT2

  2247   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2248                env, obj, cls, methodID);

  2249 #else /* USDT2 */

  2250   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

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

  2252 #endif /* USDT2 */

  2253   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2255   JavaValue jvalue(T_VOID);

  2256   JNI_ArgumentPusherVaArg ap(methodID, args);

  2257   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2258 JNI_END

  2261 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2262   JNIWrapper("CallNonvirtualVoidMethodA");

  2263 #ifndef USDT2

  2264   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2265                 env, obj, cls, methodID);

  2266 #else /* USDT2 */

  2267   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2268                 env, obj, cls, (uintptr_t) methodID);

  2269 #endif /* USDT2 */

  2270   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2271   JavaValue jvalue(T_VOID);

  2272   JNI_ArgumentPusherArray ap(methodID, args);

  2273   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2274 JNI_END

  2277 #ifndef USDT2

  2278 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2279 \

  2280   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

  2281   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType);\

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

  2283 \

  2284 JNI_ENTRY(ResultType, \

  2285           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2286   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2287 \

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

  2289   ResultType ret = 0;\

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

  2291                      (const ResultType&)ret);\

  2292 \

  2293   va_list args; \

  2294   va_start(args, methodID); \

  2295   JavaValue jvalue(Tag); \

  2296   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2297   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2298   va_end(args); \

  2299   ret = jvalue.get_##ResultType(); \

  2300   return ret;\

  2301 JNI_END \

  2302 \

  2303 JNI_ENTRY(ResultType, \

  2304           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2305   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2306   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2307   ResultType ret = 0;\

  2308   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2309                      (const ResultType&)ret);\

  2310 \

  2311   JavaValue jvalue(Tag); \

  2312   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2313   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2314   ret = jvalue.get_##ResultType(); \

  2315   return ret;\

  2316 JNI_END \

  2317 \

  2318 JNI_ENTRY(ResultType, \

  2319           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2320   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2321   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2322   ResultType ret = 0;\

  2323   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2324                      (const ResultType&)ret);\

  2325 \

  2326   JavaValue jvalue(Tag); \

  2327   JNI_ArgumentPusherArray ap(methodID, args); \

  2328   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2329   ret = jvalue.get_##ResultType(); \

  2330   return ret;\

  2331 JNI_END

  2333 // the runtime type of subword integral basic types is integer

  2334 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2335 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2336 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2337 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2339 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2340 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2341 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2342 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2343 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2346 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2347 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2348 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2350 #else /* USDT2 */

  2352 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2353                                 , EntryProbe, ResultProbe) \

  2354 \

  2355   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2356                           , ResultProbe);                               \

  2357 \

  2358 JNI_ENTRY(ResultType, \

  2359           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2360   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2361 \

  2362   EntryProbe; \

  2363   ResultType ret = 0;\

  2364   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2365                      (const ResultType&)ret);\

  2366 \

  2367   va_list args; \

  2368   va_start(args, methodID); \

  2369   JavaValue jvalue(Tag); \

  2370   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2371   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2372   va_end(args); \

  2373   ret = jvalue.get_##ResultType(); \

  2374   return ret;\

  2375 JNI_END

  2377 // the runtime type of subword integral basic types is integer

  2378 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2380                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2381 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

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

  2383                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2384 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

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

  2386                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2387 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

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

  2389                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2391 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

  2392                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2393                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2394 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

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

  2396                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2397 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2399                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2400 // Float and double probes don't return value because dtrace doesn't currently support it

  2401 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

  2402                         , HOTSPOT_JNI_CALLSTATICFLOATMETHOD_ENTRY(env, cls, (uintptr_t)methodID),

  2403                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2404 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

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

  2406                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2408 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2409                                 , EntryProbe, ResultProbe) \

  2410 \

  2411   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2412                           , ResultProbe);                               \

  2413 \

  2414 JNI_ENTRY(ResultType, \

  2415           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2416   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2417 \

  2418   EntryProbe; \

  2419   ResultType ret = 0;\

  2420   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2421                      (const ResultType&)ret);\

  2422 \

  2423   JavaValue jvalue(Tag); \

  2424   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2425   /* Make sure class is initialized before trying to invoke its method */ \

  2426   KlassHandle k(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls))); \

  2427   k()->initialize(CHECK_0); \

  2428   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2429   va_end(args); \

  2430   ret = jvalue.get_##ResultType(); \

  2431   return ret;\

  2432 JNI_END

  2434 // the runtime type of subword integral basic types is integer

  2435 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2437                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2438 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

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

  2440                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2441 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

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

  2443                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2444 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

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

  2446                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2448 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

  2449                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_ENTRY(env, cls, (uintptr_t)methodID),

  2450                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2451 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

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

  2453                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2454 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

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

  2456                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2457 // Float and double probes don't return value because dtrace doesn't currently support it

  2458 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

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

  2460                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2461 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

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

  2463                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2465 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2466                                 , EntryProbe, ResultProbe) \

  2467 \

  2468   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2469                           , ResultProbe);                               \

  2470 \

  2471 JNI_ENTRY(ResultType, \

  2472           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2473   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2474 \

  2475   EntryProbe; \

  2476   ResultType ret = 0;\

  2477   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2478                      (const ResultType&)ret);\

  2479 \

  2480   JavaValue jvalue(Tag); \

  2481   JNI_ArgumentPusherArray ap(methodID, args); \

  2482   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2483   ret = jvalue.get_##ResultType(); \

  2484   return ret;\

  2485 JNI_END

  2487 // the runtime type of subword integral basic types is integer

  2488 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2490                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2491 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

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

  2493                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2494 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

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

  2496                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2497 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

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

  2499                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2501 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

  2502                         , HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2503                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2504 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

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

  2506                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2507 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

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

  2509                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2510 // Float and double probes don't return value because dtrace doesn't currently support it

  2511 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

  2512                         , HOTSPOT_JNI_CALLSTATICFLOATMETHODA_ENTRY(env, cls, (uintptr_t)methodID),

  2513                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2514 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

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

  2516                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2518 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2519                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2520 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2521                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2522 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2523                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2524 #endif /* USDT2 */

  2526 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2527   JNIWrapper("CallStaticVoidMethod");

  2528 #ifndef USDT2

  2529   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2530 #else /* USDT2 */

  2531   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2532                                          env, cls, (uintptr_t) methodID);

  2533 #endif /* USDT2 */

  2534   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2536   va_list args;

  2537   va_start(args, methodID);

  2538   JavaValue jvalue(T_VOID);

  2539   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  2541   va_end(args);

  2542 JNI_END

  2545 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2546   JNIWrapper("CallStaticVoidMethodV");

  2547 #ifndef USDT2

  2548   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodV__entry, env, cls, methodID);

  2549 #else /* USDT2 */

  2550   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2551                                           env, cls, (uintptr_t) methodID);

  2552 #endif /* USDT2 */

  2553   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2555   JavaValue jvalue(T_VOID);

  2556   JNI_ArgumentPusherVaArg ap(methodID, args);

  2557   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2558 JNI_END

  2561 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2562   JNIWrapper("CallStaticVoidMethodA");

  2563 #ifndef USDT2

  2564   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2565 #else /* USDT2 */

  2566   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2567                                           env, cls, (uintptr_t) methodID);

  2568 #endif /* USDT2 */

  2569   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2571   JavaValue jvalue(T_VOID);

  2572   JNI_ArgumentPusherArray ap(methodID, args);

  2573   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2574 JNI_END

  2577 //

  2578 // Accessing Fields

  2579 //

  2582 #ifndef USDT2

  2583 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2584 #else /* USDT2 */

  2585 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2586                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2587 #endif /* USDT2 */

  2589 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2590           const char *name, const char *sig))

  2591   JNIWrapper("GetFieldID");

  2592 #ifndef USDT2

  2593   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2594 #else /* USDT2 */

  2595   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2596                                env, clazz, (char *) name, (char *) sig);

  2597 #endif /* USDT2 */

  2598   jfieldID ret = 0;

  2599   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2601   // The class should have been loaded (we have an instance of the class

  2602   // passed in) so the field and signature should already be in the symbol

  2603   // table.  If they're not there, the field doesn't exist.

  2604   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2605   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2606   if (fieldname == NULL || signame == NULL) {

  2607     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2608   }

  2609   KlassHandle k(THREAD,

  2610                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2611   // Make sure class is initialized before handing id's out to fields

  2612   k()->initialize(CHECK_NULL);

  2614   fieldDescriptor fd;

  2615   if (!k()->oop_is_instance() ||

  2616       !InstanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2617     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2618   }

  2620   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2621   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2622   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2623   return ret;

  2624 JNI_END

  2627 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2628   JNIWrapper("GetObjectField");

  2629 #ifndef USDT2

  2630   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2631 #else /* USDT2 */

  2632   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2633                                    env, obj, (uintptr_t) fieldID);

  2634 #endif /* USDT2 */

  2635   oop o = JNIHandles::resolve_non_null(obj);

  2636   Klass* k = o->klass();

  2637   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2638   // Keep JVMTI addition small and only check enabled flag here.

  2639   // jni_GetField_probe() assumes that is okay to create handles.

  2640   if (JvmtiExport::should_post_field_access()) {

  2641     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2642   }

  2643   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2644 #ifndef SERIALGC

  2645   // If G1 is enabled and we are accessing the value of the referent

  2646   // field in a reference object then we need to register a non-null

  2647   // referent with the SATB barrier.

  2648   if (UseG1GC) {

  2649     bool needs_barrier = false;

  2651     if (ret != NULL &&

  2652         offset == java_lang_ref_Reference::referent_offset &&

  2653         InstanceKlass::cast(k)->reference_type() != REF_NONE) {

  2654       assert(InstanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2655       needs_barrier = true;

  2656     }

  2658     if (needs_barrier) {

  2659       oop referent = JNIHandles::resolve(ret);

  2660       G1SATBCardTableModRefBS::enqueue(referent);

  2661     }

  2662   }

  2663 #endif // SERIALGC

  2664 #ifndef USDT2

  2665   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2666 #else /* USDT2 */

  2667 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2668                                   ret);

  2669 #endif /* USDT2 */

  2670   return ret;

  2671 JNI_END

  2674 #ifndef USDT2

  2675 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2676 \

  2677   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2678 \

  2679 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2680   JNIWrapper("Get" XSTR(Result) "Field"); \

  2681 \

  2682   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2683   Return ret = 0;\

  2684   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2685 \

  2686   oop o = JNIHandles::resolve_non_null(obj); \

  2687   Klass* k = o->klass(); \

  2688   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2689   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2690   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2691   /* and creates a ResetNoHandleMark.                                   */ \

  2692   if (JvmtiExport::should_post_field_access()) { \

  2693     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2694   } \

  2695   ret = o->Fieldname##_field(offset); \

  2696   return ret; \

  2697 JNI_END

  2699 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2700 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2701 DEFINE_GETFIELD(jchar,    char,   Char)

  2702 DEFINE_GETFIELD(jshort,   short,  Short)

  2703 DEFINE_GETFIELD(jint,     int,    Int)

  2704 DEFINE_GETFIELD(jlong,    long,   Long)

  2705 DEFINE_GETFIELD(jfloat,   float,  Float)

  2706 DEFINE_GETFIELD(jdouble,  double, Double)

  2708 #else /* USDT2 */

  2710 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2711   , EntryProbe, ReturnProbe) \

  2712 \

  2713   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2714   , ReturnProbe); \

  2715 \

  2716 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2717   JNIWrapper("Get" XSTR(Result) "Field"); \

  2718 \

  2719   EntryProbe; \

  2720   Return ret = 0;\

  2721   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2722 \

  2723   oop o = JNIHandles::resolve_non_null(obj); \

  2724   Klass* k = o->klass(); \

  2725   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2726   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2727   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2728   /* and creates a ResetNoHandleMark.                                   */ \

  2729   if (JvmtiExport::should_post_field_access()) { \

  2730     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2731   } \

  2732   ret = o->Fieldname##_field(offset); \

  2733   return ret; \

  2734 JNI_END

  2736 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2737                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2738                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2739 DEFINE_GETFIELD(jbyte,    byte,   Byte

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

  2741                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2742 DEFINE_GETFIELD(jchar,    char,   Char

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

  2744                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2745 DEFINE_GETFIELD(jshort,   short,  Short

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

  2747                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2748 DEFINE_GETFIELD(jint,     int,    Int

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

  2750                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2751 DEFINE_GETFIELD(jlong,    long,   Long

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

  2753                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2754 // Float and double probes don't return value because dtrace doesn't currently support it

  2755 DEFINE_GETFIELD(jfloat,   float,  Float

  2756                 , HOTSPOT_JNI_GETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2757                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2758 DEFINE_GETFIELD(jdouble,  double, Double

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

  2760                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2761 #endif /* USDT2 */

  2763 address jni_GetBooleanField_addr() {

  2764   return (address)jni_GetBooleanField;

  2765 }

  2766 address jni_GetByteField_addr() {

  2767   return (address)jni_GetByteField;

  2768 }

  2769 address jni_GetCharField_addr() {

  2770   return (address)jni_GetCharField;

  2771 }

  2772 address jni_GetShortField_addr() {

  2773   return (address)jni_GetShortField;

  2774 }

  2775 address jni_GetIntField_addr() {

  2776   return (address)jni_GetIntField;

  2777 }

  2778 address jni_GetLongField_addr() {

  2779   return (address)jni_GetLongField;

  2780 }

  2781 address jni_GetFloatField_addr() {

  2782   return (address)jni_GetFloatField;

  2783 }

  2784 address jni_GetDoubleField_addr() {

  2785   return (address)jni_GetDoubleField;

  2786 }

  2788 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2789   JNIWrapper("SetObjectField");

  2790 #ifndef USDT2

  2791   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2792 #else /* USDT2 */

  2793   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2794                                    env, obj, (uintptr_t) fieldID, value);

  2795 #endif /* USDT2 */

  2796   oop o = JNIHandles::resolve_non_null(obj);

  2797   Klass* k = o->klass();

  2798   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2799   // Keep JVMTI addition small and only check enabled flag here.

  2800   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2801   // and creates a ResetNoHandleMark.

  2802   if (JvmtiExport::should_post_field_modification()) {

  2803     jvalue field_value;

  2804     field_value.l = value;

  2805     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2806   }

  2807   o->obj_field_put(offset, JNIHandles::resolve(value));

  2808 #ifndef USDT2

  2809   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2810 #else /* USDT2 */

  2811   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2812 );

  2813 #endif /* USDT2 */

  2814 JNI_END

  2816 #ifndef USDT2

  2817 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2818 \

  2819 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2820   JNIWrapper("Set" XSTR(Result) "Field"); \

  2821 \

  2822   FP_SELECT_##Result( \

  2823     DTRACE_PROBE4(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID, value), \

  2824     DTRACE_PROBE3(hotspot_jni, Set##Result##Field__entry, env, obj, fieldID)); \

  2825 \

  2826   oop o = JNIHandles::resolve_non_null(obj); \

  2827   Klass* k = o->klass(); \

  2828   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2829   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2830   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2831   /* and creates a ResetNoHandleMark.                                   */ \

  2832   if (JvmtiExport::should_post_field_modification()) { \

  2833     jvalue field_value; \

  2834     field_value.unionType = value; \

  2835     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2836   } \

  2837   o->Fieldname##_field_put(offset, value); \

  2838   DTRACE_PROBE(hotspot_jni, Set##Result##Field__return);\

  2839 JNI_END

  2841 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z)

  2842 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b)

  2843 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c)

  2844 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s)

  2845 DEFINE_SETFIELD(jint,     int,    Int,     'I', i)

  2846 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j)

  2847 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f)

  2848 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d)

  2850 #else /* USDT2 */

  2852 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType \

  2853                         , EntryProbe, ReturnProbe) \

  2854 \

  2855 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2856   JNIWrapper("Set" XSTR(Result) "Field"); \

  2857 \

  2858   EntryProbe; \

  2859 \

  2860   oop o = JNIHandles::resolve_non_null(obj); \

  2861   Klass* k = o->klass(); \

  2862   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2863   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2864   /* jni_SetField_probe_nh() assumes that is not okay to create handles */ \

  2865   /* and creates a ResetNoHandleMark.                                   */ \

  2866   if (JvmtiExport::should_post_field_modification()) { \

  2867     jvalue field_value; \

  2868     field_value.unionType = value; \

  2869     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, SigType, (jvalue *)&field_value); \

  2870   } \

  2871   o->Fieldname##_field_put(offset, value); \

  2872   ReturnProbe; \

  2873 JNI_END

  2875 DEFINE_SETFIELD(jboolean, bool,   Boolean, 'Z', z

  2876                 , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID, value),

  2877                 HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  2878 DEFINE_SETFIELD(jbyte,    byte,   Byte,    'B', b

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

  2880                 HOTSPOT_JNI_SETBYTEFIELD_RETURN())

  2881 DEFINE_SETFIELD(jchar,    char,   Char,    'C', c

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

  2883                 HOTSPOT_JNI_SETCHARFIELD_RETURN())

  2884 DEFINE_SETFIELD(jshort,   short,  Short,   'S', s

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

  2886                 HOTSPOT_JNI_SETSHORTFIELD_RETURN())

  2887 DEFINE_SETFIELD(jint,     int,    Int,     'I', i

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

  2889                 HOTSPOT_JNI_SETINTFIELD_RETURN())

  2890 DEFINE_SETFIELD(jlong,    long,   Long,    'J', j

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

  2892                 HOTSPOT_JNI_SETLONGFIELD_RETURN())

  2893 // Float and double probes don't return value because dtrace doesn't currently support it

  2894 DEFINE_SETFIELD(jfloat,   float,  Float,   'F', f

  2895                 , HOTSPOT_JNI_SETFLOATFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2896                 HOTSPOT_JNI_SETFLOATFIELD_RETURN())

  2897 DEFINE_SETFIELD(jdouble,  double, Double,  'D', d

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

  2899                 HOTSPOT_JNI_SETDOUBLEFIELD_RETURN())

  2900 #endif /* USDT2 */

  2902 #ifndef USDT2

  2903 DT_RETURN_MARK_DECL(ToReflectedField, jobject);

  2904 #else /* USDT2 */

  2905 DT_RETURN_MARK_DECL(ToReflectedField, jobject

  2906                     , HOTSPOT_JNI_TOREFLECTEDFIELD_RETURN(_ret_ref));

  2907 #endif /* USDT2 */

  2909 JNI_ENTRY(jobject, jni_ToReflectedField(JNIEnv *env, jclass cls, jfieldID fieldID, jboolean isStatic))

  2910   JNIWrapper("ToReflectedField");

  2911 #ifndef USDT2

  2912   DTRACE_PROBE4(hotspot_jni, ToReflectedField__entry,

  2913                 env, cls, fieldID, isStatic);

  2914 #else /* USDT2 */

  2915   HOTSPOT_JNI_TOREFLECTEDFIELD_ENTRY(

  2916                 env, cls, (uintptr_t) fieldID, isStatic);

  2917 #endif /* USDT2 */

  2918   jobject ret = NULL;

  2919   DT_RETURN_MARK(ToReflectedField, jobject, (const jobject&)ret);

  2921   fieldDescriptor fd;

  2922   bool found = false;

  2923   Klass* k = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(cls));

  2925   assert(jfieldIDWorkaround::is_static_jfieldID(fieldID) == (isStatic != 0), "invalid fieldID");

  2927   if (isStatic) {

  2928     // Static field. The fieldID a JNIid specifying the field holder and the offset within the Klass*.

  2929     JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  2930     assert(id->is_static_field_id(), "invalid static field id");

  2931     found = id->find_local_field(&fd);

  2932   } else {

  2933     // Non-static field. The fieldID is really the offset of the field within the instanceOop.

  2934     int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2935     found = InstanceKlass::cast(k)->find_field_from_offset(offset, false, &fd);

  2936   }

  2937   assert(found, "bad fieldID passed into jni_ToReflectedField");

  2938   oop reflected = Reflection::new_field(&fd, UseNewReflection, CHECK_NULL);

  2939   ret = JNIHandles::make_local(env, reflected);

  2940   return ret;

  2941 JNI_END

  2944 //

  2945 // Accessing Static Fields

  2946 //

  2947 #ifndef USDT2

  2948 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID);

  2949 #else /* USDT2 */

  2950 DT_RETURN_MARK_DECL(GetStaticFieldID, jfieldID

  2951                     , HOTSPOT_JNI_GETSTATICFIELDID_RETURN((uintptr_t)_ret_ref));

  2952 #endif /* USDT2 */

  2954 JNI_ENTRY(jfieldID, jni_GetStaticFieldID(JNIEnv *env, jclass clazz,

  2955           const char *name, const char *sig))

  2956   JNIWrapper("GetStaticFieldID");

  2957 #ifndef USDT2

  2958   DTRACE_PROBE4(hotspot_jni, GetStaticFieldID__entry, env, clazz, name, sig);

  2959 #else /* USDT2 */

  2960   HOTSPOT_JNI_GETSTATICFIELDID_ENTRY(

  2961                                      env, clazz, (char *) name, (char *) sig);

  2962 #endif /* USDT2 */

  2963   jfieldID ret = NULL;

  2964   DT_RETURN_MARK(GetStaticFieldID, jfieldID, (const jfieldID&)ret);

  2966   // The class should have been loaded (we have an instance of the class

  2967   // passed in) so the field and signature should already be in the symbol

  2968   // table.  If they're not there, the field doesn't exist.

  2969   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2970   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2971   if (fieldname == NULL || signame == NULL) {

  2972     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2973   }

  2974   KlassHandle k(THREAD,

  2975                 java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  2976   // Make sure class is initialized before handing id's out to static fields

  2977   k()->initialize(CHECK_NULL);

  2979   fieldDescriptor fd;

  2980   if (!k()->oop_is_instance() ||

  2981       !InstanceKlass::cast(k())->find_field(fieldname, signame, true, &fd)) {

  2982     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2983   }

  2985   // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the Klass*

  2986   JNIid* id = fd.field_holder()->jni_id_for(fd.offset());

  2987   debug_only(id->set_is_static_field_id();)

  2989   debug_only(id->verify(fd.field_holder()));

  2991   ret = jfieldIDWorkaround::to_static_jfieldID(id);

  2992   return ret;

  2993 JNI_END

  2996 JNI_ENTRY(jobject, jni_GetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID))

  2997   JNIWrapper("GetStaticObjectField");

  2998 #ifndef USDT2

  2999   DTRACE_PROBE3(hotspot_jni, GetStaticObjectField__entry, env, clazz, fieldID);

  3000 #else /* USDT2 */

  3001   HOTSPOT_JNI_GETSTATICOBJECTFIELD_ENTRY(

  3002                                          env, clazz, (uintptr_t) fieldID);

  3003 #endif /* USDT2 */

  3004 #if INCLUDE_JNI_CHECK

  3005   DEBUG_ONLY(Klass* param_k = jniCheck::validate_class(thread, clazz);)

  3006 #endif // INCLUDE_JNI_CHECK

  3007   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3008   assert(id->is_static_field_id(), "invalid static field id");

  3009   // Keep JVMTI addition small and only check enabled flag here.

  3010   // jni_GetField_probe() assumes that is okay to create handles.

  3011   if (JvmtiExport::should_post_field_access()) {

  3012     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true);

  3013   }

  3014   jobject ret = JNIHandles::make_local(id->holder()->java_mirror()->obj_field(id->offset()));

  3015 #ifndef USDT2

  3016   DTRACE_PROBE1(hotspot_jni, GetStaticObjectField__return, ret);

  3017 #else /* USDT2 */

  3018   HOTSPOT_JNI_GETSTATICOBJECTFIELD_RETURN(

  3019                                           ret);

  3020 #endif /* USDT2 */

  3021   return ret;

  3022 JNI_END

  3024 #ifndef USDT2

  3025 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result) \

  3026 \

  3027   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return);\

  3028 \

  3029 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3030   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3031   DTRACE_PROBE3(hotspot_jni, GetStatic##Result##Field__entry, env, clazz, fieldID);\

  3032   Return ret = 0;\

  3033   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3034                      (const Return&)ret);\

  3035   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3036   assert(id->is_static_field_id(), "invalid static field id"); \

  3037   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3038   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3039   if (JvmtiExport::should_post_field_access()) { \

  3040     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3041   } \

  3042   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3043   return ret;\

  3044 JNI_END

  3046 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean)

  3047 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte)

  3048 DEFINE_GETSTATICFIELD(jchar,    char,   Char)

  3049 DEFINE_GETSTATICFIELD(jshort,   short,  Short)

  3050 DEFINE_GETSTATICFIELD(jint,     int,    Int)

  3051 DEFINE_GETSTATICFIELD(jlong,    long,   Long)

  3052 DEFINE_GETSTATICFIELD(jfloat,   float,  Float)

  3053 DEFINE_GETSTATICFIELD(jdouble,  double, Double)

  3055 #else /* USDT2 */

  3057 #define DEFINE_GETSTATICFIELD(Return,Fieldname,Result \

  3058                               , EntryProbe, ReturnProbe) \

  3059 \

  3060   DT_RETURN_MARK_DECL_FOR(Result, GetStatic##Result##Field, Return \

  3061                           , ReturnProbe);                                          \

  3062 \

  3063 JNI_ENTRY(Return, jni_GetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID)) \

  3064   JNIWrapper("GetStatic" XSTR(Result) "Field"); \

  3065   EntryProbe; \

  3066   Return ret = 0;\

  3067   DT_RETURN_MARK_FOR(Result, GetStatic##Result##Field, Return, \

  3068                      (const Return&)ret);\

  3069   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3070   assert(id->is_static_field_id(), "invalid static field id"); \

  3071   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3072   /* jni_GetField_probe() assumes that is okay to create handles. */ \

  3073   if (JvmtiExport::should_post_field_access()) { \

  3074     JvmtiExport::jni_GetField_probe(thread, NULL, NULL, id->holder(), fieldID, true); \

  3075   } \

  3076   ret = id->holder()->java_mirror()-> Fieldname##_field (id->offset()); \

  3077   return ret;\

  3078 JNI_END

  3080 DEFINE_GETSTATICFIELD(jboolean, bool,   Boolean

  3081                       , HOTSPOT_JNI_GETSTATICBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t) fieldID), HOTSPOT_JNI_GETSTATICBOOLEANFIELD_RETURN(_ret_ref))

  3082 DEFINE_GETSTATICFIELD(jbyte,    byte,   Byte

  3083                       , HOTSPOT_JNI_GETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICBYTEFIELD_RETURN(_ret_ref)   )

  3084 DEFINE_GETSTATICFIELD(jchar,    char,   Char

  3085                       , HOTSPOT_JNI_GETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICCHARFIELD_RETURN(_ret_ref)   )

  3086 DEFINE_GETSTATICFIELD(jshort,   short,  Short

  3087                       , HOTSPOT_JNI_GETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICSHORTFIELD_RETURN(_ret_ref)  )

  3088 DEFINE_GETSTATICFIELD(jint,     int,    Int

  3089                       , HOTSPOT_JNI_GETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),     HOTSPOT_JNI_GETSTATICINTFIELD_RETURN(_ret_ref)    )

  3090 DEFINE_GETSTATICFIELD(jlong,    long,   Long

  3091                       , HOTSPOT_JNI_GETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),    HOTSPOT_JNI_GETSTATICLONGFIELD_RETURN(_ret_ref)   )

  3092 // Float and double probes don't return value because dtrace doesn't currently support it

  3093 DEFINE_GETSTATICFIELD(jfloat,   float,  Float

  3094                       , HOTSPOT_JNI_GETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),   HOTSPOT_JNI_GETSTATICFLOATFIELD_RETURN()          )

  3095 DEFINE_GETSTATICFIELD(jdouble,  double, Double

  3096                       , HOTSPOT_JNI_GETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),  HOTSPOT_JNI_GETSTATICDOUBLEFIELD_RETURN()         )

  3097 #endif /* USDT2 */

  3099 JNI_ENTRY(void, jni_SetStaticObjectField(JNIEnv *env, jclass clazz, jfieldID fieldID, jobject value))

  3100   JNIWrapper("SetStaticObjectField");

  3101 #ifndef USDT2

  3102   DTRACE_PROBE4(hotspot_jni, SetStaticObjectField__entry, env, clazz, fieldID, value);

  3103 #else /* USDT2 */

  3104  HOTSPOT_JNI_SETSTATICOBJECTFIELD_ENTRY(

  3105                                         env, clazz, (uintptr_t) fieldID, value);

  3106 #endif /* USDT2 */

  3107   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID);

  3108   assert(id->is_static_field_id(), "invalid static field id");

  3109   // Keep JVMTI addition small and only check enabled flag here.

  3110   // jni_SetField_probe() assumes that is okay to create handles.

  3111   if (JvmtiExport::should_post_field_modification()) {

  3112     jvalue field_value;

  3113     field_value.l = value;

  3114     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, 'L', (jvalue *)&field_value);

  3115   }

  3116   id->holder()->java_mirror()->obj_field_put(id->offset(), JNIHandles::resolve(value));

  3117 #ifndef USDT2

  3118   DTRACE_PROBE(hotspot_jni, SetStaticObjectField__return);

  3119 #else /* USDT2 */

  3120   HOTSPOT_JNI_SETSTATICOBJECTFIELD_RETURN(

  3121                                           );

  3122 #endif /* USDT2 */

  3123 JNI_END

  3126 #ifndef USDT2

  3127 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType) \

  3128 \

  3129 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3130   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3131   FP_SELECT_##Result( \

  3132      DTRACE_PROBE4(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID, value), \

  3133      DTRACE_PROBE3(hotspot_jni, SetStatic##Result##Field__entry, env, clazz, fieldID)); \

  3134 \

  3135   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3136   assert(id->is_static_field_id(), "invalid static field id"); \

  3137   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3138   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3139   if (JvmtiExport::should_post_field_modification()) { \

  3140     jvalue field_value; \

  3141     field_value.unionType = value; \

  3142     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3143   } \

  3144   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3145   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3146 JNI_END

  3148 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3149 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3150 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3151 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3152 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3153 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3154 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3155 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3157 #else /* USDT2 */

  3159 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3160                               , EntryProbe, ReturnProbe) \

  3161 \

  3162 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3163   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3164   EntryProbe; \

  3165 \

  3166   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3167   assert(id->is_static_field_id(), "invalid static field id"); \

  3168   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3169   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3170   if (JvmtiExport::should_post_field_modification()) { \

  3171     jvalue field_value; \

  3172     field_value.unionType = value; \

  3173     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3174   } \

  3175   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3176   ReturnProbe;\

  3177 JNI_END

  3179 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3180                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3181                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3182 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3183                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3184                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3185 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3186                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3187                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3188 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3189                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3190                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3191 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3192                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3193                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3194 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3195                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3196                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3197 // Float and double probes don't return value because dtrace doesn't currently support it

  3198 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3199                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3200                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3201 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3202                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3203                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3204 #endif /* USDT2 */

  3206 //

  3207 // String Operations

  3208 //

  3210 // Unicode Interface

  3212 #ifndef USDT2

  3213 DT_RETURN_MARK_DECL(NewString, jstring);

  3214 #else /* USDT2 */

  3215 DT_RETURN_MARK_DECL(NewString, jstring

  3216                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3217 #endif /* USDT2 */

  3219 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3220   JNIWrapper("NewString");

  3221 #ifndef USDT2

  3222   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3223 #else /* USDT2 */

  3224  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3225                              env, (uint16_t *) unicodeChars, len);

  3226 #endif /* USDT2 */

  3227   jstring ret = NULL;

  3228   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3229   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3230   ret = (jstring) JNIHandles::make_local(env, string);

  3231   return ret;

  3232 JNI_END

  3235 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3236   JNIWrapper("GetStringLength");

  3237 #ifndef USDT2

  3238   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3239 #else /* USDT2 */

  3240   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3241                                     env, string);

  3242 #endif /* USDT2 */

  3243   jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string));

  3244 #ifndef USDT2

  3245   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3246 #else /* USDT2 */

  3247  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3248                                     ret);

  3249 #endif /* USDT2 */

  3250   return ret;

  3251 JNI_END

  3254 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3255   JNIEnv *env, jstring string, jboolean *isCopy))

  3256   JNIWrapper("GetStringChars");

  3257 #ifndef USDT2

  3258   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3259 #else /* USDT2 */

  3260  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3261                                   env, string, (uintptr_t *) isCopy);

  3262 #endif /* USDT2 */

  3263   //%note jni_5

  3264   if (isCopy != NULL) {

  3265     *isCopy = JNI_TRUE;

  3266   }

  3267   oop s = JNIHandles::resolve_non_null(string);

  3268   int s_len = java_lang_String::length(s);

  3269   typeArrayOop s_value = java_lang_String::value(s);

  3270   int s_offset = java_lang_String::offset(s);

  3271   jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1, mtInternal);  // add one for zero termination

  3272   if (s_len > 0) {

  3273     memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3274   }

  3275   buf[s_len] = 0;

  3276 #ifndef USDT2

  3277   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3278 #else /* USDT2 */

  3279   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3280                                     buf);

  3281 #endif /* USDT2 */

  3282   return buf;

  3283 JNI_END

  3286 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3287   JNIWrapper("ReleaseStringChars");

  3288 #ifndef USDT2

  3289   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3290 #else /* USDT2 */

  3291   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3292                                        env, str, (uint16_t *) chars);

  3293 #endif /* USDT2 */

  3294   //%note jni_6

  3295   if (chars != NULL) {

  3296     // Since String objects are supposed to be immutable, don't copy any

  3297     // new data back.  A bad user will have to go after the char array.

  3298     FreeHeap((void*) chars);

  3299   }

  3300 #ifndef USDT2

  3301   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3302 #else /* USDT2 */

  3303   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3304 );

  3305 #endif /* USDT2 */

  3306 JNI_END

  3309 // UTF Interface

  3311 #ifndef USDT2

  3312 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3313 #else /* USDT2 */

  3314 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3315                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3316 #endif /* USDT2 */

  3318 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3319   JNIWrapper("NewStringUTF");

  3320 #ifndef USDT2

  3321   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3322 #else /* USDT2 */

  3323   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3324                                  env, (char *) bytes);

  3325 #endif /* USDT2 */

  3326   jstring ret;

  3327   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3329   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3330   ret = (jstring) JNIHandles::make_local(env, result);

  3331   return ret;

  3332 JNI_END

  3335 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3336   JNIWrapper("GetStringUTFLength");

  3337 #ifndef USDT2

  3338   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3339 #else /* USDT2 */

  3340  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3341                                       env, string);

  3342 #endif /* USDT2 */

  3343   jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string));

  3344 #ifndef USDT2

  3345   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3346 #else /* USDT2 */

  3347   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3348                                         ret);

  3349 #endif /* USDT2 */

  3350   return ret;

  3351 JNI_END

  3354 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3355   JNIWrapper("GetStringUTFChars");

  3356 #ifndef USDT2

  3357   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3358 #else /* USDT2 */

  3359  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3360                                      env, string, (uintptr_t *) isCopy);

  3361 #endif /* USDT2 */

  3362   oop java_string = JNIHandles::resolve_non_null(string);

  3363   size_t length = java_lang_String::utf8_length(java_string);

  3364   char* result = AllocateHeap(length + 1, mtInternal);

  3365   java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3366   if (isCopy != NULL) *isCopy = JNI_TRUE;

  3367 #ifndef USDT2

  3368   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3369 #else /* USDT2 */

  3370  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3371                                       result);

  3372 #endif /* USDT2 */

  3373   return result;

  3374 JNI_END

  3377 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3378   JNIWrapper("ReleaseStringUTFChars");

  3379 #ifndef USDT2

  3380   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3381 #else /* USDT2 */

  3382  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3383                                          env, str, (char *) chars);

  3384 #endif /* USDT2 */

  3385   if (chars != NULL) {

  3386     FreeHeap((char*) chars);

  3387   }

  3388 #ifndef USDT2

  3389   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3390 #else /* USDT2 */

  3391 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3392 );

  3393 #endif /* USDT2 */

  3394 JNI_END

  3397 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3398   JNIWrapper("GetArrayLength");

  3399 #ifndef USDT2

  3400   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3401 #else /* USDT2 */

  3402  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3403                                   env, array);

  3404 #endif /* USDT2 */

  3405   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3406   assert(a->is_array(), "must be array");

  3407   jsize ret = a->length();

  3408 #ifndef USDT2

  3409   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3410 #else /* USDT2 */

  3411  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3412                                    ret);

  3413 #endif /* USDT2 */

  3414   return ret;

  3415 JNI_END

  3418 //

  3419 // Object Array Operations

  3420 //

  3422 #ifndef USDT2

  3423 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3424 #else /* USDT2 */

  3425 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3426                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3427 #endif /* USDT2 */

  3429 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3430   JNIWrapper("NewObjectArray");

  3431 #ifndef USDT2

  3432   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3433 #else /* USDT2 */

  3434  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3435                                   env, length, elementClass, initialElement);

  3436 #endif /* USDT2 */

  3437   jobjectArray ret = NULL;

  3438   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3439   KlassHandle ek(THREAD, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(elementClass)));

  3440   Klass* ako = ek()->array_klass(CHECK_NULL);

  3441   KlassHandle ak = KlassHandle(THREAD, ako);

  3442   ObjArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3443   objArrayOop result = ObjArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3444   oop initial_value = JNIHandles::resolve(initialElement);

  3445   if (initial_value != NULL) {  // array already initialized with NULL

  3446     for (int index = 0; index < length; index++) {

  3447       result->obj_at_put(index, initial_value);

  3448     }

  3449   }

  3450   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3451   return ret;

  3452 JNI_END

  3454 #ifndef USDT2

  3455 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3456 #else /* USDT2 */

  3457 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3458                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3459 #endif /* USDT2 */

  3461 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3462   JNIWrapper("GetObjectArrayElement");

  3463 #ifndef USDT2

  3464   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3465 #else /* USDT2 */

  3466  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3467                                          env, array, index);

  3468 #endif /* USDT2 */

  3469   jobject ret = NULL;

  3470   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3471   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3472   if (a->is_within_bounds(index)) {

  3473     ret = JNIHandles::make_local(env, a->obj_at(index));

  3474     return ret;

  3475   } else {

  3476     char buf[jintAsStringSize];

  3477     sprintf(buf, "%d", index);

  3478     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3479   }

  3480 JNI_END

  3482 #ifndef USDT2

  3483 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3484 #else /* USDT2 */

  3485 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3486                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3487 #endif /* USDT2 */

  3489 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3490   JNIWrapper("SetObjectArrayElement");

  3491 #ifndef USDT2

  3492   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3493 #else /* USDT2 */

  3494  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3495                                          env, array, index, value);

  3496 #endif /* USDT2 */

  3497   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3499   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3500   oop v = JNIHandles::resolve(value);

  3501   if (a->is_within_bounds(index)) {

  3502     if (v == NULL || v->is_a(ObjArrayKlass::cast(a->klass())->element_klass())) {

  3503       a->obj_at_put(index, v);

  3504     } else {

  3505       THROW(vmSymbols::java_lang_ArrayStoreException());

  3506     }

  3507   } else {

  3508     char buf[jintAsStringSize];

  3509     sprintf(buf, "%d", index);

  3510     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3511   }

  3512 JNI_END

  3515 #ifndef USDT2

  3516 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3517 \

  3518   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3519 \

  3520 JNI_ENTRY(Return, \

  3521           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3522   JNIWrapper("New" XSTR(Result) "Array"); \

  3523   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3524   Return ret = NULL;\

  3525   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3526 \

  3527   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3528   ret = (Return) JNIHandles::make_local(env, obj); \

  3529   return ret;\

  3530 JNI_END

  3532 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3533 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3534 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3535 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3536 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3537 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3538 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3539 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3541 #else /* USDT2 */

  3543 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3544                               ,EntryProbe,ReturnProbe)  \

  3545 \

  3546   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3547                       , ReturnProbe); \

  3548 \

  3549 JNI_ENTRY(Return, \

  3550           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3551   JNIWrapper("New" XSTR(Result) "Array"); \

  3552   EntryProbe; \

  3553   Return ret = NULL;\

  3554   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3555 \

  3556   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3557   ret = (Return) JNIHandles::make_local(env, obj); \

  3558   return ret;\

  3559 JNI_END

  3561 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3562                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3563                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3564 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3565                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3566                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3567 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3568                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3569                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3570 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3571                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3572                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3573 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3574                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3575                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3576 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3577                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3578                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3579 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3580                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3581                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3582 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3583                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3584                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3585 #endif /* USDT2 */

  3587 // Return an address which will fault if the caller writes to it.

  3589 static char* get_bad_address() {

  3590   static char* bad_address = NULL;

  3591   if (bad_address == NULL) {

  3592     size_t size = os::vm_allocation_granularity();

  3593     bad_address = os::reserve_memory(size);

  3594     if (bad_address != NULL) {

  3595       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3596                          /*is_committed*/false);

  3597     }

  3598   }

  3599   return bad_address;

  3600 }

  3603 #ifndef USDT2

  3604 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3605 \

  3606 JNI_QUICK_ENTRY(ElementType*, \

  3607           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3608   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3609   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3610   /* allocate an chunk of memory in c land */ \

  3611   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3612   ElementType* result; \

  3613   int len = a->length(); \

  3614   if (len == 0) { \

  3615     /* Empty array: legal but useless, can't return NULL. \

  3616      * Return a pointer to something useless. \

  3617      * Avoid asserts in typeArrayOop. */ \

  3618     result = (ElementType*)get_bad_address(); \

  3619   } else { \

  3620     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3621     /* copy the array to the c chunk */ \

  3622     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3623   } \

  3624   if (isCopy) *isCopy = JNI_TRUE; \

  3625   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3626   return result; \

  3627 JNI_END

  3629 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3630 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3631 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3632 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3633 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3634 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3635 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3636 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3638 #else /* USDT2 */

  3640 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3641                                       , EntryProbe, ReturnProbe) \

  3642 \

  3643 JNI_QUICK_ENTRY(ElementType*, \

  3644           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3645   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3646   EntryProbe; \

  3647   /* allocate an chunk of memory in c land */ \

  3648   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3649   ElementType* result; \

  3650   int len = a->length(); \

  3651   if (len == 0) { \

  3652     /* Empty array: legal but useless, can't return NULL. \

  3653      * Return a pointer to something useless. \

  3654      * Avoid asserts in typeArrayOop. */ \

  3655     result = (ElementType*)get_bad_address(); \

  3656   } else { \

  3657     result = NEW_C_HEAP_ARRAY(ElementType, len, mtInternal); \

  3658     /* copy the array to the c chunk */ \

  3659     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3660   } \

  3661   if (isCopy) *isCopy = JNI_TRUE; \

  3662   ReturnProbe; \

  3663   return result; \

  3664 JNI_END

  3666 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3667                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3668                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3669 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3670                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3671                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3672 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3673                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3674                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3675 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3676                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3677                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3678 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3679                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3680                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3681 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3682                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3683                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3684 // Float and double probes don't return value because dtrace doesn't currently support it

  3685 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3686                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3687                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3688 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3689                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3690                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3691 #endif /* USDT2 */

  3693 #ifndef USDT2

  3694 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3695 \

  3696 JNI_QUICK_ENTRY(void, \

  3697           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3698                                              ElementType *buf, jint mode)) \

  3699   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3700   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3701   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3702   int len = a->length(); \

  3703   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3704     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3705       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3706     } \

  3707     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3708       FreeHeap(buf); \

  3709     } \

  3710   } \

  3711   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3712 JNI_END

  3714 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3715 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3723 #else /* USDT2 */

  3725 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3726                                           , EntryProbe, ReturnProbe);\

  3727 \

  3728 JNI_QUICK_ENTRY(void, \

  3729           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3730                                              ElementType *buf, jint mode)) \

  3731   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3732   EntryProbe; \

  3733   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3734   int len = a->length(); \

  3735   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3736     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3737       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3738     } \

  3739     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3740       FreeHeap(buf); \

  3741     } \

  3742   } \

  3743   ReturnProbe; \

  3744 JNI_END

  3746 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3747                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3748                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3749 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3750                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3751                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3752 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3753                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3754                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3755 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3756                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3757                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3758 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3759                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3760                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3761 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3762                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3763                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3764 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3765                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3766                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3767 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3768                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3769                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3770 #endif /* USDT2 */

  3772 #ifndef USDT2

  3773 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3774   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3775 \

  3776 JNI_ENTRY(void, \

  3777 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3778              jsize len, ElementType *buf)) \

  3779   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3780   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3781   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3782   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3783   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3784     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3785   } else { \

  3786     if (len > 0) { \

  3787       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3788       memcpy((u_char*) buf, \

  3789              (u_char*) src->Tag##_at_addr(start), \

  3790              len << sc);                          \

  3791     } \

  3792   } \

  3793 JNI_END

  3795 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3796 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3797 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3798 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3799 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3800 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3801 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3802 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3804 #else /* USDT2 */

  3806 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3807                                     , EntryProbe, ReturnProbe); \

  3808   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3809                            , ReturnProbe); \

  3810 \

  3811 JNI_ENTRY(void, \

  3812 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3813              jsize len, ElementType *buf)) \

  3814   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3815   EntryProbe; \

  3816   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3817   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3818   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3819     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3820   } else { \

  3821     if (len > 0) { \

  3822       int sc = TypeArrayKlass::cast(src->klass())->log2_element_size(); \

  3823       memcpy((u_char*) buf, \

  3824              (u_char*) src->Tag##_at_addr(start), \

  3825              len << sc);                          \

  3826     } \

  3827   } \

  3828 JNI_END

  3830 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3831                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3832                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3833 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3834                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3835                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3836 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3837                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3838                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3839 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3840                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3841                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3842 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3843                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3844                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3845 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3846                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3847                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3848 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3849                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3850                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3851 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3852                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3853                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3854 #endif /* USDT2 */

  3856 #ifndef USDT2

  3857 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3858   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3859 \

  3860 JNI_ENTRY(void, \

  3861 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3862              jsize len, const ElementType *buf)) \

  3863   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3864   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3865   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3866   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3867   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3868     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3869   } else { \

  3870     if (len > 0) { \

  3871       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3872       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3873              (u_char*) buf, \

  3874              len << sc);    \

  3875     } \

  3876   } \

  3877 JNI_END

  3879 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3880 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3881 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3882 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3883 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3884 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3885 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3886 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3888 #else /* USDT2 */

  3890 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3891                                     , EntryProbe, ReturnProbe); \

  3892   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3893                            ,ReturnProbe);           \

  3894 \

  3895 JNI_ENTRY(void, \

  3896 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3897              jsize len, const ElementType *buf)) \

  3898   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3899   EntryProbe; \

  3900   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3901   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3902   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3903     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3904   } else { \

  3905     if (len > 0) { \

  3906       int sc = TypeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3907       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3908              (u_char*) buf, \

  3909              len << sc);    \

  3910     } \

  3911   } \

  3912 JNI_END

  3914 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3915                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3916                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3917 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3918                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3919                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3920 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3921                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3922                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3923 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3924                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3925                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3926 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3927                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3928                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3929 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3930                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3931                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3932 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3933                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3934                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3935 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3936                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3937                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3938 #endif /* USDT2 */

  3941 //

  3942 // Interception of natives

  3943 //

  3945 // The RegisterNatives call being attempted tried to register with a method that

  3946 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3947 // to see if the native method is now wrapped with the prefixes.  See the

  3948 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3949 static Method* find_prefixed_native(KlassHandle k,

  3950                                       Symbol* name, Symbol* signature, TRAPS) {

  3951 #if INCLUDE_JVMTI

  3952   ResourceMark rm(THREAD);

  3953   Method* method;

  3954   int name_len = name->utf8_length();

  3955   char* name_str = name->as_utf8();

  3956   int prefix_count;

  3957   char** prefixes = JvmtiExport::get_all_native_method_prefixes(&prefix_count);

  3958   for (int i = 0; i < prefix_count; i++) {

  3959     char* prefix = prefixes[i];

  3960     int prefix_len = (int)strlen(prefix);

  3962     // try adding this prefix to the method name and see if it matches another method name

  3963     int trial_len = name_len + prefix_len;

  3964     char* trial_name_str = NEW_RESOURCE_ARRAY(char, trial_len + 1);

  3965     strcpy(trial_name_str, prefix);

  3966     strcat(trial_name_str, name_str);

  3967     TempNewSymbol trial_name = SymbolTable::probe(trial_name_str, trial_len);

  3968     if (trial_name == NULL) {

  3969       continue; // no such symbol, so this prefix wasn't used, try the next prefix

  3970     }

  3971     method = k()->lookup_method(trial_name, signature);

  3972     if (method == NULL) {

  3973       continue; // signature doesn't match, try the next prefix

  3974     }

  3975     if (method->is_native()) {

  3976       method->set_is_prefixed_native();

  3977       return method; // wahoo, we found a prefixed version of the method, return it

  3978     }

  3979     // found as non-native, so prefix is good, add it, probably just need more prefixes

  3980     name_len = trial_len;

  3981     name_str = trial_name_str;

  3982   }

  3983 #endif // INCLUDE_JVMTI

  3984   return NULL; // not found

  3985 }

  3987 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3988   Method* method = k()->lookup_method(name, signature);

  3989   if (method == NULL) {

  3990     ResourceMark rm;

  3991     stringStream st;

  3992     st.print("Method %s name or signature does not match",

  3993              Method::name_and_sig_as_C_string(k(), name, signature));

  3994     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3995   }

  3996   if (!method->is_native()) {

  3997     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  3998     method = find_prefixed_native(k, name, signature, THREAD);

  3999     if (method == NULL) {

  4000       ResourceMark rm;

  4001       stringStream st;

  4002       st.print("Method %s is not declared as native",

  4003                Method::name_and_sig_as_C_string(k(), name, signature));

  4004       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4005     }

  4006   }

  4008   if (entry != NULL) {

  4009     method->set_native_function(entry,

  4010       Method::native_bind_event_is_interesting);

  4011   } else {

  4012     method->clear_native_function();

  4013   }

  4014   if (PrintJNIResolving) {

  4015     ResourceMark rm(THREAD);

  4016     tty->print_cr("[Registering JNI native method %s.%s]",

  4017       method->method_holder()->external_name(),

  4018       method->name()->as_C_string());

  4019   }

  4020   return true;

  4021 }

  4023 #ifndef USDT2

  4024 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4025 #else /* USDT2 */

  4026 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4027                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4028 #endif /* USDT2 */

  4030 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4031                                     const JNINativeMethod *methods,

  4032                                     jint nMethods))

  4033   JNIWrapper("RegisterNatives");

  4034 #ifndef USDT2

  4035   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4036 #else /* USDT2 */

  4037   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4038                                     env, clazz, (void *) methods, nMethods);

  4039 #endif /* USDT2 */

  4040   jint ret = 0;

  4041   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4043   KlassHandle h_k(thread, java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz)));

  4045   for (int index = 0; index < nMethods; index++) {

  4046     const char* meth_name = methods[index].name;

  4047     const char* meth_sig = methods[index].signature;

  4048     int meth_name_len = (int)strlen(meth_name);

  4050     // The class should have been loaded (we have an instance of the class

  4051     // passed in) so the method and signature should already be in the symbol

  4052     // table.  If they're not there, the method doesn't exist.

  4053     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4054     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4056     if (name == NULL || signature == NULL) {

  4057       ResourceMark rm;

  4058       stringStream st;

  4059       st.print("Method %s.%s%s not found", h_k()->external_name(), meth_name, meth_sig);

  4060       // Must return negative value on failure

  4061       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4062     }

  4064     bool res = register_native(h_k, name, signature,

  4065                                (address) methods[index].fnPtr, THREAD);

  4066     if (!res) {

  4067       ret = -1;

  4068       break;

  4069     }

  4070   }

  4071   return ret;

  4072 JNI_END

  4075 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4076   JNIWrapper("UnregisterNatives");

  4077 #ifndef USDT2

  4078   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4079 #else /* USDT2 */

  4080  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4081                                      env, clazz);

  4082 #endif /* USDT2 */

  4083   Klass* k   = java_lang_Class::as_Klass(JNIHandles::resolve_non_null(clazz));

  4084   //%note jni_2

  4085   if (k->oop_is_instance()) {

  4086     for (int index = 0; index < InstanceKlass::cast(k)->methods()->length(); index++) {

  4087       Method* m = InstanceKlass::cast(k)->methods()->at(index);

  4088       if (m->is_native()) {

  4089         m->clear_native_function();

  4090         m->set_signature_handler(NULL);

  4091       }

  4092     }

  4093   }

  4094 #ifndef USDT2

  4095   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4096 #else /* USDT2 */

  4097  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4098                                       0);

  4099 #endif /* USDT2 */

  4100   return 0;

  4101 JNI_END

  4103 //

  4104 // Monitor functions

  4105 //

  4107 #ifndef USDT2

  4108 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4109 #else /* USDT2 */

  4110 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4111                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4112 #endif /* USDT2 */

  4114 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4115 #ifndef USDT2

  4116   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4117 #else /* USDT2 */

  4118  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4119                                 env, jobj);

  4120 #endif /* USDT2 */

  4121   jint ret = JNI_ERR;

  4122   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4124   // If the object is null, we can't do anything with it

  4125   if (jobj == NULL) {

  4126     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4127   }

  4129   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4130   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4131   ret = JNI_OK;

  4132   return ret;

  4133 JNI_END

  4135 #ifndef USDT2

  4136 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4137 #else /* USDT2 */

  4138 DT_RETURN_MARK_DECL(MonitorExit, jint

  4139                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4140 #endif /* USDT2 */

  4142 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4143 #ifndef USDT2

  4144   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4145 #else /* USDT2 */

  4146  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4147                                env, jobj);

  4148 #endif /* USDT2 */

  4149   jint ret = JNI_ERR;

  4150   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4152   // Don't do anything with a null object

  4153   if (jobj == NULL) {

  4154     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4155   }

  4157   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4158   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4160   ret = JNI_OK;

  4161   return ret;

  4162 JNI_END

  4164 //

  4165 // Extensions

  4166 //

  4168 #ifndef USDT2

  4169 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4170 #else /* USDT2 */

  4171 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4172                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4173 #endif /* USDT2 */

  4175 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4176   JNIWrapper("GetStringRegion");

  4177 #ifndef USDT2

  4178   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4179 #else /* USDT2 */

  4180  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4181                                    env, string, start, len, buf);

  4182 #endif /* USDT2 */

  4183   DT_VOID_RETURN_MARK(GetStringRegion);

  4184   oop s = JNIHandles::resolve_non_null(string);

  4185   int s_len = java_lang_String::length(s);

  4186   if (start < 0 || len < 0 || start + len > s_len) {

  4187     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4188   } else {

  4189     if (len > 0) {

  4190       int s_offset = java_lang_String::offset(s);

  4191       typeArrayOop s_value = java_lang_String::value(s);

  4192       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4193     }

  4194   }

  4195 JNI_END

  4197 #ifndef USDT2

  4198 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4199 #else /* USDT2 */

  4200 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4201                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4202 #endif /* USDT2 */

  4204 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4205   JNIWrapper("GetStringUTFRegion");

  4206 #ifndef USDT2

  4207   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4208 #else /* USDT2 */

  4209  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4210                                       env, string, start, len, buf);

  4211 #endif /* USDT2 */

  4212   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4213   oop s = JNIHandles::resolve_non_null(string);

  4214   int s_len = java_lang_String::length(s);

  4215   if (start < 0 || len < 0 || start + len > s_len) {

  4216     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4217   } else {

  4218     //%note jni_7

  4219     if (len > 0) {

  4220       ResourceMark rm(THREAD);

  4221       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4222       int utf_len = (int)strlen(utf_region);

  4223       memcpy(buf, utf_region, utf_len);

  4224       buf[utf_len] = 0;

  4225     } else {

  4226       // JDK null-terminates the buffer even in len is zero

  4227       if (buf != NULL) {

  4228         buf[0] = 0;

  4229       }

  4230     }

  4231   }

  4232 JNI_END

  4235 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4236   JNIWrapper("GetPrimitiveArrayCritical");

  4237 #ifndef USDT2

  4238   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4239 #else /* USDT2 */

  4240  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4241                                              env, array, (uintptr_t *) isCopy);

  4242 #endif /* USDT2 */

  4243   GC_locker::lock_critical(thread);

  4244   if (isCopy != NULL) {

  4245     *isCopy = JNI_FALSE;

  4246   }

  4247   oop a = JNIHandles::resolve_non_null(array);

  4248   assert(a->is_array(), "just checking");

  4249   BasicType type;

  4250   if (a->is_objArray()) {

  4251     type = T_OBJECT;

  4252   } else {

  4253     type = TypeArrayKlass::cast(a->klass())->element_type();

  4254   }

  4255   void* ret = arrayOop(a)->base(type);

  4256 #ifndef USDT2

  4257   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4258 #else /* USDT2 */

  4259  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4260                                               ret);

  4261 #endif /* USDT2 */

  4262   return ret;

  4263 JNI_END

  4266 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4267   JNIWrapper("ReleasePrimitiveArrayCritical");

  4268 #ifndef USDT2

  4269   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4270 #else /* USDT2 */

  4271   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4272                                                   env, array, carray, mode);

  4273 #endif /* USDT2 */

  4274   // The array, carray and mode arguments are ignored

  4275   GC_locker::unlock_critical(thread);

  4276 #ifndef USDT2

  4277   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4278 #else /* USDT2 */

  4279 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4280 );

  4281 #endif /* USDT2 */

  4282 JNI_END

  4285 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4286   JNIWrapper("GetStringCritical");

  4287 #ifndef USDT2

  4288   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4289 #else /* USDT2 */

  4290   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4291                                       env, string, (uintptr_t *) isCopy);

  4292 #endif /* USDT2 */

  4293   GC_locker::lock_critical(thread);

  4294   if (isCopy != NULL) {

  4295     *isCopy = JNI_FALSE;

  4296   }

  4297   oop s = JNIHandles::resolve_non_null(string);

  4298   int s_len = java_lang_String::length(s);

  4299   typeArrayOop s_value = java_lang_String::value(s);

  4300   int s_offset = java_lang_String::offset(s);

  4301   const jchar* ret;

  4302   if (s_len > 0) {

  4303     ret = s_value->char_at_addr(s_offset);

  4304   } else {

  4305     ret = (jchar*) s_value->base(T_CHAR);

  4306   }

  4307 #ifndef USDT2

  4308   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4309 #else /* USDT2 */

  4310  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4311                                       (uint16_t *) ret);

  4312 #endif /* USDT2 */

  4313   return ret;

  4314 JNI_END

  4317 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4318   JNIWrapper("ReleaseStringCritical");

  4319 #ifndef USDT2

  4320   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4321 #else /* USDT2 */

  4322   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4323                                           env, str, (uint16_t *) chars);

  4324 #endif /* USDT2 */

  4325   // The str and chars arguments are ignored

  4326   GC_locker::unlock_critical(thread);

  4327 #ifndef USDT2

  4328   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4329 #else /* USDT2 */

  4330 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4331 );

  4332 #endif /* USDT2 */

  4333 JNI_END

  4336 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4337   JNIWrapper("jni_NewWeakGlobalRef");

  4338 #ifndef USDT2

  4339   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4340 #else /* USDT2 */

  4341  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4342                                     env, ref);

  4343 #endif /* USDT2 */

  4344   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4345   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4346 #ifndef USDT2

  4347   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4348 #else /* USDT2 */

  4349  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4350                                      ret);

  4351 #endif /* USDT2 */

  4352   return ret;

  4353 JNI_END

  4355 // Must be JNI_ENTRY (with HandleMark)

  4356 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4357   JNIWrapper("jni_DeleteWeakGlobalRef");

  4358 #ifndef USDT2

  4359   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4360 #else /* USDT2 */

  4361   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4362                                         env, ref);

  4363 #endif /* USDT2 */

  4364   JNIHandles::destroy_weak_global(ref);

  4365 #ifndef USDT2

  4366   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4367 #else /* USDT2 */

  4368   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4369                                          );

  4370 #endif /* USDT2 */

  4371 JNI_END

  4374 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4375   JNIWrapper("jni_ExceptionCheck");

  4376 #ifndef USDT2

  4377   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4378 #else /* USDT2 */

  4379  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4380                                   env);

  4381 #endif /* USDT2 */

  4382   jni_check_async_exceptions(thread);

  4383   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4384 #ifndef USDT2

  4385   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4386 #else /* USDT2 */

  4387  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4388                                    ret);

  4389 #endif /* USDT2 */

  4390   return ret;

  4391 JNI_END

  4394 // Initialization state for three routines below relating to

  4395 // java.nio.DirectBuffers

  4396 static          jint directBufferSupportInitializeStarted = 0;

  4397 static volatile jint directBufferSupportInitializeEnded   = 0;

  4398 static volatile jint directBufferSupportInitializeFailed  = 0;

  4399 static jclass    bufferClass                 = NULL;

  4400 static jclass    directBufferClass           = NULL;

  4401 static jclass    directByteBufferClass       = NULL;

  4402 static jmethodID directByteBufferConstructor = NULL;

  4403 static jfieldID  directBufferAddressField    = NULL;

  4404 static jfieldID  bufferCapacityField         = NULL;

  4406 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4407   Handle loader;            // null (bootstrap) loader

  4408   Handle protection_domain; // null protection domain

  4410   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4411   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4413   if (TraceClassResolution && result != NULL) {

  4414     trace_class_resolution(java_lang_Class::as_Klass(JNIHandles::resolve_non_null(result)));

  4415   }

  4416   return result;

  4417 }

  4419 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4420 // circumvent any security checks that would be done by jni_FindClass.

  4421 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4422 {

  4423   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4424   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4425   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4426   return true;

  4427 }

  4428 JNI_END

  4431 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4432   if (directBufferSupportInitializeFailed) {

  4433     return false;

  4434   }

  4436   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4437     if (!lookupDirectBufferClasses(env)) {

  4438       directBufferSupportInitializeFailed = 1;

  4439       return false;

  4440     }

  4442     // Make global references for these

  4443     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4444     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4445     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4447     // Get needed field and method IDs

  4448     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4449     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4450     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4452     if ((directByteBufferConstructor == NULL) ||

  4453         (directBufferAddressField    == NULL) ||

  4454         (bufferCapacityField         == NULL)) {

  4455       directBufferSupportInitializeFailed = 1;

  4456       return false;

  4457     }

  4459     directBufferSupportInitializeEnded = 1;

  4460   } else {

  4461     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4462       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4463       // os::sleep which requires the VM state transition. On other platforms, it

  4464       // is not necessary. The following call to change the VM state is purposely

  4465       // put inside the loop to avoid potential deadlock when multiple threads

  4466       // try to call this method. See 6791815 for more details.

  4467       ThreadInVMfromNative tivn(thread);

  4468       os::yield_all();

  4469     }

  4470   }

  4472   return !directBufferSupportInitializeFailed;

  4473 }

  4475 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4476 {

  4477   // thread_from_jni_environment() will block if VM is gone.

  4478   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4480   JNIWrapper("jni_NewDirectByteBuffer");

  4481 #ifndef USDT2

  4482   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4483 #else /* USDT2 */

  4484  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4485                                        env, address, capacity);

  4486 #endif /* USDT2 */

  4488   if (!directBufferSupportInitializeEnded) {

  4489     if (!initializeDirectBufferSupport(env, thread)) {

  4490 #ifndef USDT2

  4491       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4492 #else /* USDT2 */

  4493       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4494                                              NULL);

  4495 #endif /* USDT2 */

  4496       return NULL;

  4497     }

  4498   }

  4500   // Being paranoid about accidental sign extension on address

  4501   jlong addr = (jlong) ((uintptr_t) address);

  4502   // NOTE that package-private DirectByteBuffer constructor currently

  4503   // takes int capacity

  4504   jint  cap  = (jint)  capacity;

  4505   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4506 #ifndef USDT2

  4507   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4508 #else /* USDT2 */

  4509   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4510                                          ret);

  4511 #endif /* USDT2 */

  4512   return ret;

  4513 }

  4515 #ifndef USDT2

  4516 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4517 #else /* USDT2 */

  4518 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4519                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4520 #endif /* USDT2 */

  4522 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4523 {

  4524   // thread_from_jni_environment() will block if VM is gone.

  4525   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4527   JNIWrapper("jni_GetDirectBufferAddress");

  4528 #ifndef USDT2

  4529   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4530 #else /* USDT2 */

  4531   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4532                                            env, buf);

  4533 #endif /* USDT2 */

  4534   void* ret = NULL;

  4535   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4537   if (!directBufferSupportInitializeEnded) {

  4538     if (!initializeDirectBufferSupport(env, thread)) {

  4539       return 0;

  4540     }

  4541   }

  4543   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4544     return 0;

  4545   }

  4547   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4548   return ret;

  4549 }

  4551 #ifndef USDT2

  4552 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4553 #else /* USDT2 */

  4554 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4555                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4556 #endif /* USDT2 */

  4558 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4559 {

  4560   // thread_from_jni_environment() will block if VM is gone.

  4561   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4563   JNIWrapper("jni_GetDirectBufferCapacity");

  4564 #ifndef USDT2

  4565   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4566 #else /* USDT2 */

  4567   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4568                                             env, buf);

  4569 #endif /* USDT2 */

  4570   jlong ret = -1;

  4571   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4573   if (!directBufferSupportInitializeEnded) {

  4574     if (!initializeDirectBufferSupport(env, thread)) {

  4575       ret = 0;

  4576       return ret;

  4577     }

  4578   }

  4580   if (buf == NULL) {

  4581     return -1;

  4582   }

  4584   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4585     return -1;

  4586   }

  4588   // NOTE that capacity is currently an int in the implementation

  4589   ret = env->GetIntField(buf, bufferCapacityField);

  4590   return ret;

  4591 }

  4594 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4595   JNIWrapper("GetVersion");

  4596 #ifndef USDT2

  4597   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4598 #else /* USDT2 */

  4599   HOTSPOT_JNI_GETVERSION_ENTRY(

  4600                                env);

  4601 #endif /* USDT2 */

  4602 #ifndef USDT2

  4603   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4604 #else /* USDT2 */

  4605   HOTSPOT_JNI_GETVERSION_RETURN(

  4606                                 CurrentVersion);

  4607 #endif /* USDT2 */

  4608   return CurrentVersion;

  4609 JNI_END

  4611 extern struct JavaVM_ main_vm;

  4613 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4614   JNIWrapper("jni_GetJavaVM");

  4615 #ifndef USDT2

  4616   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4617 #else /* USDT2 */

  4618   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4619                               env, (void **) vm);

  4620 #endif /* USDT2 */

  4621   *vm  = (JavaVM *)(&main_vm);

  4622 #ifndef USDT2

  4623   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4624 #else /* USDT2 */

  4625   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4626                                JNI_OK);

  4627 #endif /* USDT2 */

  4628   return JNI_OK;

  4629 JNI_END

  4631 // Structure containing all jni functions

  4632 struct JNINativeInterface_ jni_NativeInterface = {

  4633     NULL,

  4634     NULL,

  4635     NULL,

  4637     NULL,

  4639     jni_GetVersion,

  4641     jni_DefineClass,

  4642     jni_FindClass,

  4644     jni_FromReflectedMethod,

  4645     jni_FromReflectedField,

  4647     jni_ToReflectedMethod,

  4649     jni_GetSuperclass,

  4650     jni_IsAssignableFrom,

  4652     jni_ToReflectedField,

  4654     jni_Throw,

  4655     jni_ThrowNew,

  4656     jni_ExceptionOccurred,

  4657     jni_ExceptionDescribe,

  4658     jni_ExceptionClear,

  4659     jni_FatalError,

  4661     jni_PushLocalFrame,

  4662     jni_PopLocalFrame,

  4664     jni_NewGlobalRef,

  4665     jni_DeleteGlobalRef,

  4666     jni_DeleteLocalRef,

  4667     jni_IsSameObject,

  4669     jni_NewLocalRef,

  4670     jni_EnsureLocalCapacity,

  4672     jni_AllocObject,

  4673     jni_NewObject,

  4674     jni_NewObjectV,

  4675     jni_NewObjectA,

  4677     jni_GetObjectClass,

  4678     jni_IsInstanceOf,

  4680     jni_GetMethodID,

  4682     jni_CallObjectMethod,

  4683     jni_CallObjectMethodV,

  4684     jni_CallObjectMethodA,

  4685     jni_CallBooleanMethod,

  4686     jni_CallBooleanMethodV,

  4687     jni_CallBooleanMethodA,

  4688     jni_CallByteMethod,

  4689     jni_CallByteMethodV,

  4690     jni_CallByteMethodA,

  4691     jni_CallCharMethod,

  4692     jni_CallCharMethodV,

  4693     jni_CallCharMethodA,

  4694     jni_CallShortMethod,

  4695     jni_CallShortMethodV,

  4696     jni_CallShortMethodA,

  4697     jni_CallIntMethod,

  4698     jni_CallIntMethodV,

  4699     jni_CallIntMethodA,

  4700     jni_CallLongMethod,

  4701     jni_CallLongMethodV,

  4702     jni_CallLongMethodA,

  4703     jni_CallFloatMethod,

  4704     jni_CallFloatMethodV,

  4705     jni_CallFloatMethodA,

  4706     jni_CallDoubleMethod,

  4707     jni_CallDoubleMethodV,

  4708     jni_CallDoubleMethodA,

  4709     jni_CallVoidMethod,

  4710     jni_CallVoidMethodV,

  4711     jni_CallVoidMethodA,

  4713     jni_CallNonvirtualObjectMethod,

  4714     jni_CallNonvirtualObjectMethodV,

  4715     jni_CallNonvirtualObjectMethodA,

  4716     jni_CallNonvirtualBooleanMethod,

  4717     jni_CallNonvirtualBooleanMethodV,

  4718     jni_CallNonvirtualBooleanMethodA,

  4719     jni_CallNonvirtualByteMethod,

  4720     jni_CallNonvirtualByteMethodV,

  4721     jni_CallNonvirtualByteMethodA,

  4722     jni_CallNonvirtualCharMethod,

  4723     jni_CallNonvirtualCharMethodV,

  4724     jni_CallNonvirtualCharMethodA,

  4725     jni_CallNonvirtualShortMethod,

  4726     jni_CallNonvirtualShortMethodV,

  4727     jni_CallNonvirtualShortMethodA,

  4728     jni_CallNonvirtualIntMethod,

  4729     jni_CallNonvirtualIntMethodV,

  4730     jni_CallNonvirtualIntMethodA,

  4731     jni_CallNonvirtualLongMethod,

  4732     jni_CallNonvirtualLongMethodV,

  4733     jni_CallNonvirtualLongMethodA,

  4734     jni_CallNonvirtualFloatMethod,

  4735     jni_CallNonvirtualFloatMethodV,

  4736     jni_CallNonvirtualFloatMethodA,

  4737     jni_CallNonvirtualDoubleMethod,

  4738     jni_CallNonvirtualDoubleMethodV,

  4739     jni_CallNonvirtualDoubleMethodA,

  4740     jni_CallNonvirtualVoidMethod,

  4741     jni_CallNonvirtualVoidMethodV,

  4742     jni_CallNonvirtualVoidMethodA,

  4744     jni_GetFieldID,

  4746     jni_GetObjectField,

  4747     jni_GetBooleanField,

  4748     jni_GetByteField,

  4749     jni_GetCharField,

  4750     jni_GetShortField,

  4751     jni_GetIntField,

  4752     jni_GetLongField,

  4753     jni_GetFloatField,

  4754     jni_GetDoubleField,

  4756     jni_SetObjectField,

  4757     jni_SetBooleanField,

  4758     jni_SetByteField,

  4759     jni_SetCharField,

  4760     jni_SetShortField,

  4761     jni_SetIntField,

  4762     jni_SetLongField,

  4763     jni_SetFloatField,

  4764     jni_SetDoubleField,

  4766     jni_GetStaticMethodID,

  4768     jni_CallStaticObjectMethod,

  4769     jni_CallStaticObjectMethodV,

  4770     jni_CallStaticObjectMethodA,

  4771     jni_CallStaticBooleanMethod,

  4772     jni_CallStaticBooleanMethodV,

  4773     jni_CallStaticBooleanMethodA,

  4774     jni_CallStaticByteMethod,

  4775     jni_CallStaticByteMethodV,

  4776     jni_CallStaticByteMethodA,

  4777     jni_CallStaticCharMethod,

  4778     jni_CallStaticCharMethodV,

  4779     jni_CallStaticCharMethodA,

  4780     jni_CallStaticShortMethod,

  4781     jni_CallStaticShortMethodV,

  4782     jni_CallStaticShortMethodA,

  4783     jni_CallStaticIntMethod,

  4784     jni_CallStaticIntMethodV,

  4785     jni_CallStaticIntMethodA,

  4786     jni_CallStaticLongMethod,

  4787     jni_CallStaticLongMethodV,

  4788     jni_CallStaticLongMethodA,

  4789     jni_CallStaticFloatMethod,

  4790     jni_CallStaticFloatMethodV,

  4791     jni_CallStaticFloatMethodA,

  4792     jni_CallStaticDoubleMethod,

  4793     jni_CallStaticDoubleMethodV,

  4794     jni_CallStaticDoubleMethodA,

  4795     jni_CallStaticVoidMethod,

  4796     jni_CallStaticVoidMethodV,

  4797     jni_CallStaticVoidMethodA,

  4799     jni_GetStaticFieldID,

  4801     jni_GetStaticObjectField,

  4802     jni_GetStaticBooleanField,

  4803     jni_GetStaticByteField,

  4804     jni_GetStaticCharField,

  4805     jni_GetStaticShortField,

  4806     jni_GetStaticIntField,

  4807     jni_GetStaticLongField,

  4808     jni_GetStaticFloatField,

  4809     jni_GetStaticDoubleField,

  4811     jni_SetStaticObjectField,

  4812     jni_SetStaticBooleanField,

  4813     jni_SetStaticByteField,

  4814     jni_SetStaticCharField,

  4815     jni_SetStaticShortField,

  4816     jni_SetStaticIntField,

  4817     jni_SetStaticLongField,

  4818     jni_SetStaticFloatField,

  4819     jni_SetStaticDoubleField,

  4821     jni_NewString,

  4822     jni_GetStringLength,

  4823     jni_GetStringChars,

  4824     jni_ReleaseStringChars,

  4826     jni_NewStringUTF,

  4827     jni_GetStringUTFLength,

  4828     jni_GetStringUTFChars,

  4829     jni_ReleaseStringUTFChars,

  4831     jni_GetArrayLength,

  4833     jni_NewObjectArray,

  4834     jni_GetObjectArrayElement,

  4835     jni_SetObjectArrayElement,

  4837     jni_NewBooleanArray,

  4838     jni_NewByteArray,

  4839     jni_NewCharArray,

  4840     jni_NewShortArray,

  4841     jni_NewIntArray,

  4842     jni_NewLongArray,

  4843     jni_NewFloatArray,

  4844     jni_NewDoubleArray,

  4846     jni_GetBooleanArrayElements,

  4847     jni_GetByteArrayElements,

  4848     jni_GetCharArrayElements,

  4849     jni_GetShortArrayElements,

  4850     jni_GetIntArrayElements,

  4851     jni_GetLongArrayElements,

  4852     jni_GetFloatArrayElements,

  4853     jni_GetDoubleArrayElements,

  4855     jni_ReleaseBooleanArrayElements,

  4856     jni_ReleaseByteArrayElements,

  4857     jni_ReleaseCharArrayElements,

  4858     jni_ReleaseShortArrayElements,

  4859     jni_ReleaseIntArrayElements,

  4860     jni_ReleaseLongArrayElements,

  4861     jni_ReleaseFloatArrayElements,

  4862     jni_ReleaseDoubleArrayElements,

  4864     jni_GetBooleanArrayRegion,

  4865     jni_GetByteArrayRegion,

  4866     jni_GetCharArrayRegion,

  4867     jni_GetShortArrayRegion,

  4868     jni_GetIntArrayRegion,

  4869     jni_GetLongArrayRegion,

  4870     jni_GetFloatArrayRegion,

  4871     jni_GetDoubleArrayRegion,

  4873     jni_SetBooleanArrayRegion,

  4874     jni_SetByteArrayRegion,

  4875     jni_SetCharArrayRegion,

  4876     jni_SetShortArrayRegion,

  4877     jni_SetIntArrayRegion,

  4878     jni_SetLongArrayRegion,

  4879     jni_SetFloatArrayRegion,

  4880     jni_SetDoubleArrayRegion,

  4882     jni_RegisterNatives,

  4883     jni_UnregisterNatives,

  4885     jni_MonitorEnter,

  4886     jni_MonitorExit,

  4888     jni_GetJavaVM,

  4890     jni_GetStringRegion,

  4891     jni_GetStringUTFRegion,

  4893     jni_GetPrimitiveArrayCritical,

  4894     jni_ReleasePrimitiveArrayCritical,

  4896     jni_GetStringCritical,

  4897     jni_ReleaseStringCritical,

  4899     jni_NewWeakGlobalRef,

  4900     jni_DeleteWeakGlobalRef,

  4902     jni_ExceptionCheck,

  4904     jni_NewDirectByteBuffer,

  4905     jni_GetDirectBufferAddress,

  4906     jni_GetDirectBufferCapacity,

  4908     // New 1_6 features

  4910     jni_GetObjectRefType

  4911 };

  4914 // For jvmti use to modify jni function table.

  4915 // Java threads in native contiues to run until it is transitioned

  4916 // to VM at safepoint. Before the transition or before it is blocked

  4917 // for safepoint it may access jni function table. VM could crash if

  4918 // any java thread access the jni function table in the middle of memcpy.

  4919 // To avoid this each function pointers are copied automically.

  4920 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4921   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4922   intptr_t *a = (intptr_t *) jni_functions();

  4923   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4924   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4925     Atomic::store_ptr(*b++, a++);

  4926   }

  4927 }

  4929 void quicken_jni_functions() {

  4930   // Replace Get<Primitive>Field with fast versions

  4931   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4932       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4933 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4934       // windows x86 currently needs SEH wrapper and the gain of the fast

  4935       // versions currently isn't certain for server vm on uniprocessor.

  4936       && os::is_MP()

  4937 #endif

  4938   ) {

  4939     address func;

  4940     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4941     if (func != (address)-1) {

  4942       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4943     }

  4944     func = JNI_FastGetField::generate_fast_get_byte_field();

  4945     if (func != (address)-1) {

  4946       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4947     }

  4948     func = JNI_FastGetField::generate_fast_get_char_field();

  4949     if (func != (address)-1) {

  4950       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4951     }

  4952     func = JNI_FastGetField::generate_fast_get_short_field();

  4953     if (func != (address)-1) {

  4954       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4955     }

  4956     func = JNI_FastGetField::generate_fast_get_int_field();

  4957     if (func != (address)-1) {

  4958       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4959     }

  4960     func = JNI_FastGetField::generate_fast_get_long_field();

  4961     if (func != (address)-1) {

  4962       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4963     }

  4964     func = JNI_FastGetField::generate_fast_get_float_field();

  4965     if (func != (address)-1) {

  4966       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4967     }

  4968     func = JNI_FastGetField::generate_fast_get_double_field();

  4969     if (func != (address)-1) {

  4970       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4971     }

  4972   }

  4973 }

  4975 // Returns the function structure

  4976 struct JNINativeInterface_* jni_functions() {

  4977 #if INCLUDE_JNI_CHECK

  4978   if (CheckJNICalls) return jni_functions_check();

  4979 #endif // INCLUDE_JNI_CHECK

  4980   return &jni_NativeInterface;

  4981 }

  4983 // Returns the function structure

  4984 struct JNINativeInterface_* jni_functions_nocheck() {

  4985   return &jni_NativeInterface;

  4986 }

  4989 // Invocation API

  4992 // Forward declaration

  4993 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  4995 // Global invocation API vars

  4996 volatile jint vm_created = 0;

  4997 // Indicate whether it is safe to recreate VM

  4998 volatile jint safe_to_recreate_vm = 1;

  4999 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5002 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5003 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5005 #ifndef USDT2

  5006 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5007 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5008 #else /* USDT2 */

  5009 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5010                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5011 #endif /* USDT2 */

  5013 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5014 #ifndef USDT2

  5015   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5016 #else /* USDT2 */

  5017   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5018                                              args_);

  5019 #endif /* USDT2 */

  5020   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5021   jint ret = JNI_ERR;

  5022   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5024   if (Threads::is_supported_jni_version(args->version)) {

  5025     ret = JNI_OK;

  5026   }

  5027   // 1.1 style no longer supported in hotspot.

  5028   // According the JNI spec, we should update args->version on return.

  5029   // We also use the structure to communicate with launcher about default

  5030   // stack size.

  5031   if (args->version == JNI_VERSION_1_1) {

  5032     args->version = JNI_VERSION_1_2;

  5033     // javaStackSize is int in arguments structure

  5034     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5035     args->javaStackSize = (jint)(ThreadStackSize * K);

  5036   }

  5037   return ret;

  5038 }

  5040 #ifndef PRODUCT

  5042 #include "gc_interface/collectedHeap.hpp"

  5043 #include "utilities/quickSort.hpp"

  5044 #if INCLUDE_VM_STRUCTS

  5045 #include "runtime/vmStructs.hpp"

  5046 #endif

  5048 #define run_unit_test(unit_test_function_call)              \

  5049   tty->print_cr("Running test: " #unit_test_function_call); \

  5050   unit_test_function_call

  5052 void execute_internal_vm_tests() {

  5053   if (ExecuteInternalVMTests) {

  5054     tty->print_cr("Running internal VM tests");

  5055     run_unit_test(arrayOopDesc::test_max_array_length());

  5056     run_unit_test(CollectedHeap::test_is_in());

  5057     run_unit_test(QuickSort::test_quick_sort());

  5058     run_unit_test(AltHashing::test_alt_hash());

  5059 #if INCLUDE_VM_STRUCTS

  5060     run_unit_test(VMStructs::test());

  5061 #endif

  5062     tty->print_cr("All internal VM tests passed");

  5063   }

  5064 }

  5066 #undef run_unit_test

  5068 #endif

  5070 #ifndef USDT2

  5071 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5072 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5073 #else /* USDT2 */

  5074 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5075                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5076 #endif /* USDT2 */

  5078 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5079 #ifndef USDT2

  5080   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5081 #else /* USDT2 */

  5082   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5083                                  (void **) vm, penv, args);

  5084 #endif /* USDT2 */

  5086   jint result = JNI_ERR;

  5087   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5089   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5090   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5091   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5092   // on all architectures.  So we check it works before relying on it.

  5093 #if defined(ZERO) && defined(ASSERT)

  5094   {

  5095     jint a = 0xcafebabe;

  5096     jint b = Atomic::xchg(0xdeadbeef, &a);

  5097     void *c = &a;

  5098     void *d = Atomic::xchg_ptr(&b, &c);

  5099     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5100     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5101   }

  5102 #endif // ZERO && ASSERT

  5104   // At the moment it's only possible to have one Java VM,

  5105   // since some of the runtime state is in global variables.

  5107   // We cannot use our mutex locks here, since they only work on

  5108   // Threads. We do an atomic compare and exchange to ensure only

  5109   // one thread can call this method at a time

  5111   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5112   // the add/dec implementations are dependent on whether we are running

  5113   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5114   // function used to determine this will always return false. Atomic::xchg

  5115   // does not have this problem.

  5116   if (Atomic::xchg(1, &vm_created) == 1) {

  5117     return JNI_ERR;   // already created, or create attempt in progress

  5118   }

  5119   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5120     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5121   }

  5123   assert(vm_created == 1, "vm_created is true during the creation");

  5125   /**

  5126    * Certain errors during initialization are recoverable and do not

  5127    * prevent this method from being called again at a later time

  5128    * (perhaps with different arguments).  However, at a certain

  5129    * point during initialization if an error occurs we cannot allow

  5130    * this function to be called again (or it will crash).  In those

  5131    * situations, the 'canTryAgain' flag is set to false, which atomically

  5132    * sets safe_to_recreate_vm to 1, such that any new call to

  5133    * JNI_CreateJavaVM will immediately fail using the above logic.

  5134    */

  5135   bool can_try_again = true;

  5137   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5138   if (result == JNI_OK) {

  5139     JavaThread *thread = JavaThread::current();

  5140     /* thread is thread_in_vm here */

  5141     *vm = (JavaVM *)(&main_vm);

  5142     *(JNIEnv**)penv = thread->jni_environment();

  5144     // Tracks the time application was running before GC

  5145     RuntimeService::record_application_start();

  5147     // Notify JVMTI

  5148     if (JvmtiExport::should_post_thread_life()) {

  5149        JvmtiExport::post_thread_start(thread);

  5150     }

  5152     EVENT_BEGIN(TraceEventThreadStart, event);

  5153     EVENT_COMMIT(event,

  5154         EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5156     // Check if we should compile all classes on bootclasspath

  5157     NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();)

  5158     NOT_PRODUCT(if (ReplayCompiles) ciReplay::replay(thread);)

  5159     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5160     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5161   } else {

  5162     if (can_try_again) {

  5163       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5164       safe_to_recreate_vm = 1;

  5165     }

  5167     // Creation failed. We must reset vm_created

  5168     *vm = 0;

  5169     *(JNIEnv**)penv = 0;

  5170     // reset vm_created last to avoid race condition. Use OrderAccess to

  5171     // control both compiler and architectural-based reordering.

  5172     OrderAccess::release_store(&vm_created, 0);

  5173   }

  5175   NOT_PRODUCT(test_error_handler(ErrorHandlerTest));

  5176   NOT_PRODUCT(execute_internal_vm_tests());

  5177   return result;

  5178 }

  5180 #ifndef USDT2

  5181 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5182   JavaVM**, jsize, jsize*);

  5183 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5184 #endif /* !USDT2 */

  5186 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5187   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5188   // JNIWrapper("GetCreatedJavaVMs");

  5189 #ifndef USDT2

  5190   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5191     vm_buf, bufLen, numVMs);

  5192 #else /* USDT2 */

  5193   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5194                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5195 #endif /* USDT2 */

  5196   if (vm_created) {

  5197     if (numVMs != NULL) *numVMs = 1;

  5198     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5199   } else {

  5200     if (numVMs != NULL) *numVMs = 0;

  5201   }

  5202 #ifndef USDT2

  5203   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5204 #else /* USDT2 */

  5205   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5206                                     JNI_OK);

  5207 #endif /* USDT2 */

  5208   return JNI_OK;

  5209 }

  5211 extern "C" {

  5213 #ifndef USDT2

  5214 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5215 #else /* USDT2 */

  5216 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5217                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5218 #endif /* USDT2 */

  5220 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5221 #ifndef USDT2

  5222   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5223 #else /* USDT2 */

  5224   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5225                                   vm);

  5226 #endif /* USDT2 */

  5227   jint res = JNI_ERR;

  5228   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5230   if (!vm_created) {

  5231     res = JNI_ERR;

  5232     return res;

  5233   }

  5235   JNIWrapper("DestroyJavaVM");

  5236   JNIEnv *env;

  5237   JavaVMAttachArgs destroyargs;

  5238   destroyargs.version = CurrentVersion;

  5239   destroyargs.name = (char *)"DestroyJavaVM";

  5240   destroyargs.group = NULL;

  5241   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5242   if (res != JNI_OK) {

  5243     return res;

  5244   }

  5246   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5247   JavaThread* thread = JavaThread::current();

  5248   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5249   if (Threads::destroy_vm()) {

  5250     // Should not change thread state, VM is gone

  5251     vm_created = false;

  5252     res = JNI_OK;

  5253     return res;

  5254   } else {

  5255     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5256     res = JNI_ERR;

  5257     return res;

  5258   }

  5259 }

  5262 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5263   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5265   // Check below commented out from JDK1.2fcs as well

  5266   /*

  5267   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5268     return JNI_EVERSION;

  5269   }

  5270   */

  5272   Thread* t = ThreadLocalStorage::get_thread_slow();

  5273   if (t != NULL) {

  5274     // If the thread has been attached this operation is a no-op

  5275     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5276     return JNI_OK;

  5277   }

  5279   // Create a thread and mark it as attaching so it will be skipped by the

  5280   // ThreadsListEnumerator - see CR 6404306

  5281   JavaThread* thread = new JavaThread(true);

  5283   // Set correct safepoint info. The thread is going to call into Java when

  5284   // initializing the Java level thread object. Hence, the correct state must

  5285   // be set in order for the Safepoint code to deal with it correctly.

  5286   thread->set_thread_state(_thread_in_vm);

  5287   // Must do this before initialize_thread_local_storage

  5288   thread->record_stack_base_and_size();

  5290   thread->initialize_thread_local_storage();

  5292   if (!os::create_attached_thread(thread)) {

  5293     delete thread;

  5294     return JNI_ERR;

  5295   }

  5296   // Enable stack overflow checks

  5297   thread->create_stack_guard_pages();

  5299   thread->initialize_tlab();

  5301   thread->cache_global_variables();

  5303   // Crucial that we do not have a safepoint check for this thread, since it has

  5304   // not been added to the Thread list yet.

  5305   { Threads_lock->lock_without_safepoint_check();

  5306     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5307     // avoid this thread trying to do a GC before it is added to the thread-list

  5308     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5309     Threads::add(thread, daemon);

  5310     Threads_lock->unlock();

  5311   }

  5312   // Create thread group and name info from attach arguments

  5313   oop group = NULL;

  5314   char* thread_name = NULL;

  5315   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5316     group = JNIHandles::resolve(args->group);

  5317     thread_name = args->name; // may be NULL

  5318   }

  5319   if (group == NULL) group = Universe::main_thread_group();

  5321   // Create Java level thread object and attach it to this thread

  5322   bool attach_failed = false;

  5323   {

  5324     EXCEPTION_MARK;

  5325     HandleMark hm(THREAD);

  5326     Handle thread_group(THREAD, group);

  5327     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5328     if (HAS_PENDING_EXCEPTION) {

  5329       CLEAR_PENDING_EXCEPTION;

  5330       // cleanup outside the handle mark.

  5331       attach_failed = true;

  5332     }

  5333   }

  5335   if (attach_failed) {

  5336     // Added missing cleanup

  5337     thread->cleanup_failed_attach_current_thread();

  5338     return JNI_ERR;

  5339   }

  5341   // mark the thread as no longer attaching

  5342   // this uses a fence to push the change through so we don't have

  5343   // to regrab the threads_lock

  5344   thread->set_done_attaching_via_jni();

  5346   // Set java thread status.

  5347   java_lang_Thread::set_thread_status(thread->threadObj(),

  5348               java_lang_Thread::RUNNABLE);

  5350   // Notify the debugger

  5351   if (JvmtiExport::should_post_thread_life()) {

  5352     JvmtiExport::post_thread_start(thread);

  5353   }

  5355   EVENT_BEGIN(TraceEventThreadStart, event);

  5356   EVENT_COMMIT(event,

  5357       EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5359   *(JNIEnv**)penv = thread->jni_environment();

  5361   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5362   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5363   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5364   // needed.

  5366   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5368   // Perform any platform dependent FPU setup

  5369   os::setup_fpu();

  5371   return JNI_OK;

  5372 }

  5375 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5376 #ifndef USDT2

  5377   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5378 #else /* USDT2 */

  5379   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5380                                         vm, penv, _args);

  5381 #endif /* USDT2 */

  5382   if (!vm_created) {

  5383 #ifndef USDT2

  5384     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5385 #else /* USDT2 */

  5386   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5387                                          (uint32_t) JNI_ERR);

  5388 #endif /* USDT2 */

  5389     return JNI_ERR;

  5390   }

  5392   JNIWrapper("AttachCurrentThread");

  5393   jint ret = attach_current_thread(vm, penv, _args, false);

  5394 #ifndef USDT2

  5395   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5396 #else /* USDT2 */

  5397   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5398                                          ret);

  5399 #endif /* USDT2 */

  5400   return ret;

  5401 }

  5404 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5405 #ifndef USDT2

  5406   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5407 #else /* USDT2 */

  5408   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5409                                         vm);

  5410 #endif /* USDT2 */

  5411   VM_Exit::block_if_vm_exited();

  5413   JNIWrapper("DetachCurrentThread");

  5415   // If the thread has been deattacted the operations is a no-op

  5416   if (ThreadLocalStorage::thread() == NULL) {

  5417 #ifndef USDT2

  5418     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5419 #else /* USDT2 */

  5420   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5421                                          JNI_OK);

  5422 #endif /* USDT2 */

  5423     return JNI_OK;

  5424   }

  5426   JavaThread* thread = JavaThread::current();

  5427   if (thread->has_last_Java_frame()) {

  5428 #ifndef USDT2

  5429     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5430 #else /* USDT2 */

  5431   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5432                                          (uint32_t) JNI_ERR);

  5433 #endif /* USDT2 */

  5434     // Can't detach a thread that's running java, that can't work.

  5435     return JNI_ERR;

  5436   }

  5438   // Safepoint support. Have to do call-back to safepoint code, if in the

  5439   // middel of a safepoint operation

  5440   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5442   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5443   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5444   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5445   // of the guards is visible in jni_AttachCurrentThread above,

  5446   // the removal of the guards is buried below in JavaThread::exit()

  5447   // here. The abstraction should be more symmetrically either exposed

  5448   // or hidden (e.g. it could probably be hidden in the same

  5449   // (platform-dependent) methods where we do alternate stack

  5450   // maintenance work?)

  5451   thread->exit(false, JavaThread::jni_detach);

  5452   delete thread;

  5454 #ifndef USDT2

  5455   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5456 #else /* USDT2 */

  5457   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5458                                          JNI_OK);

  5459 #endif /* USDT2 */

  5460   return JNI_OK;

  5461 }

  5463 #ifndef USDT2

  5464 DT_RETURN_MARK_DECL(GetEnv, jint);

  5465 #else /* USDT2 */

  5466 DT_RETURN_MARK_DECL(GetEnv, jint

  5467                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5468 #endif /* USDT2 */

  5470 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5471 #ifndef USDT2

  5472   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5473 #else /* USDT2 */

  5474   HOTSPOT_JNI_GETENV_ENTRY(

  5475                            vm, penv, version);

  5476 #endif /* USDT2 */

  5477   jint ret = JNI_ERR;

  5478   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5480   if (!vm_created) {

  5481     *penv = NULL;

  5482     ret = JNI_EDETACHED;

  5483     return ret;

  5484   }

  5486   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5487     return ret;

  5488   }

  5490 #ifndef JVMPI_VERSION_1

  5491 // need these in order to be polite about older agents

  5492 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5493 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5494 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5495 #endif // !JVMPI_VERSION_1

  5497   Thread* thread = ThreadLocalStorage::thread();

  5498   if (thread != NULL && thread->is_Java_thread()) {

  5499     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5500       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5501       ret = JNI_OK;

  5502       return ret;

  5504     } else if (version == JVMPI_VERSION_1 ||

  5505                version == JVMPI_VERSION_1_1 ||

  5506                version == JVMPI_VERSION_1_2) {

  5507       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5508       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5509       ret = JNI_EVERSION;

  5510       return ret;

  5511     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5512       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5513       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5514       ret = JNI_EVERSION;

  5515       return ret;

  5516     } else {

  5517       *penv = NULL;

  5518       ret = JNI_EVERSION;

  5519       return ret;

  5520     }

  5521   } else {

  5522     *penv = NULL;

  5523     ret = JNI_EDETACHED;

  5524     return ret;

  5525   }

  5526 }

  5529 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5530 #ifndef USDT2

  5531   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5532 #else /* USDT2 */

  5533   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5534                                                 vm, penv, _args);

  5535 #endif /* USDT2 */

  5536   if (!vm_created) {

  5537 #ifndef USDT2

  5538     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5539 #else /* USDT2 */

  5540   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5541                                                  (uint32_t) JNI_ERR);

  5542 #endif /* USDT2 */

  5543     return JNI_ERR;

  5544   }

  5546   JNIWrapper("AttachCurrentThreadAsDaemon");

  5547   jint ret = attach_current_thread(vm, penv, _args, true);

  5548 #ifndef USDT2

  5549   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5550 #else /* USDT2 */

  5551   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5552                                                  ret);

  5553 #endif /* USDT2 */

  5554   return ret;

  5555 }

  5558 } // End extern "C"

  5560 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5561     NULL,

  5562     NULL,

  5563     NULL,

  5565     jni_DestroyJavaVM,

  5566     jni_AttachCurrentThread,

  5567     jni_DetachCurrentThread,

  5568     jni_GetEnv,

  5569     jni_AttachCurrentThreadAsDaemon

  5570 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@edd76a5856f7

src/share/vm/prims/jni.cpp