jdk8-mips64-public/hotspot: src/share/vm/prims/jni.cpp@94ec88ca68e2

7115199: Add event tracing hooks and Java Flight Recorder infrastructure
Summary: Added a nop tracing infrastructure, JFR makefile changes and other infrastructure used only by JFR.
Reviewed-by: acorn, sspitsyn
Contributed-by: markus.gronlund@oracle.com

     1 /*

     2  * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.

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

     4  *

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

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

     7  * published by the Free Software Foundation.

     8  *

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

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

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

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

    13  * accompanied this code).

    14  *

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

    16  * 2 along with this work; if not, write to the Free Software Foundation,

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

    18  *

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

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

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "classfile/classLoader.hpp"

    27 #include "classfile/javaClasses.hpp"

    28 #include "classfile/symbolTable.hpp"

    29 #include "classfile/systemDictionary.hpp"

    30 #include "classfile/vmSymbols.hpp"

    31 #include "interpreter/linkResolver.hpp"

    32 #ifndef SERIALGC

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

    34 #endif // SERIALGC

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

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

    37 #include "memory/oopFactory.hpp"

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

    39 #include "oops/instanceKlass.hpp"

    40 #include "oops/instanceOop.hpp"

    41 #include "oops/markOop.hpp"

    42 #include "oops/methodOop.hpp"

    43 #include "oops/objArrayKlass.hpp"

    44 #include "oops/objArrayOop.hpp"

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

    46 #include "oops/symbol.hpp"

    47 #include "oops/typeArrayKlass.hpp"

    48 #include "oops/typeArrayOop.hpp"

    49 #include "prims/jni.h"

    50 #include "prims/jniCheck.hpp"

    51 #include "prims/jniExport.hpp"

    52 #include "prims/jniFastGetField.hpp"

    53 #include "prims/jvm.h"

    54 #include "prims/jvm_misc.hpp"

    55 #include "prims/jvmtiExport.hpp"

    56 #include "prims/jvmtiThreadState.hpp"

    57 #include "runtime/compilationPolicy.hpp"

    58 #include "runtime/fieldDescriptor.hpp"

    59 #include "runtime/fprofiler.hpp"

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

    61 #include "runtime/interfaceSupport.hpp"

    62 #include "runtime/java.hpp"

    63 #include "runtime/javaCalls.hpp"

    64 #include "runtime/jfieldIDWorkaround.hpp"

    65 #include "runtime/reflection.hpp"

    66 #include "runtime/sharedRuntime.hpp"

    67 #include "runtime/signature.hpp"

    68 #include "runtime/vm_operations.hpp"

    69 #include "services/runtimeService.hpp"

    70 #include "trace/tracing.hpp"

    71 #include "trace/traceEventTypes.hpp"

    72 #include "utilities/defaultStream.hpp"

    73 #include "utilities/dtrace.hpp"

    74 #include "utilities/events.hpp"

    75 #include "utilities/histogram.hpp"

    76 #ifdef TARGET_OS_FAMILY_linux

    77 # include "os_linux.inline.hpp"

    78 # include "thread_linux.inline.hpp"

    79 #endif

    80 #ifdef TARGET_OS_FAMILY_solaris

    81 # include "os_solaris.inline.hpp"

    82 # include "thread_solaris.inline.hpp"

    83 #endif

    84 #ifdef TARGET_OS_FAMILY_windows

    85 # include "os_windows.inline.hpp"

    86 # include "thread_windows.inline.hpp"

    87 #endif

    88 #ifdef TARGET_OS_FAMILY_bsd

    89 # include "os_bsd.inline.hpp"

    90 # include "thread_bsd.inline.hpp"

    91 #endif

    93 static jint CurrentVersion = JNI_VERSION_1_6;

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

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

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

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

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

   101 //

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

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

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

   105 // a reference to it).

   106 //

   107 // Example:

   108 // DT_RETURN_MARK_DECL(SomeFunc, int);

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

   110 //   int return_value = 0;

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

   112 //   foo(CHECK_0)

   113 //   return_value = 5;

   114 //   return return_value;

   115 // JNI_END

   116 #ifndef USDT2

   117 #define DT_RETURN_MARK_DECL(name, type)                                    \

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

   119   DTRACE_ONLY(                                                             \

   120     class DTraceReturnProbeMark_##name {                                   \

   121      public:                                                               \

   122       const type& _ret_ref;                                                \

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

   124       ~DTraceReturnProbeMark_##name() {                                    \

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

   126       }                                                                    \

   127     }                                                                      \

   128   )

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

   130 #define DT_VOID_RETURN_MARK_DECL(name)                                     \

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

   132   DTRACE_ONLY(                                                             \

   133     class DTraceReturnProbeMark_##name {                                   \

   134      public:                                                               \

   135       ~DTraceReturnProbeMark_##name() {                                    \

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

   137       }                                                                    \

   138     }                                                                      \

   139   )

   141 #else /* USDT2 */

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

   144   DTRACE_ONLY(                                                             \

   145     class DTraceReturnProbeMark_##name {                                   \

   146      public:                                                               \

   147       const type& _ret_ref;                                                \

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

   149       ~DTraceReturnProbeMark_##name() {                                    \

   150         probe;                                                             \

   151       }                                                                    \

   152     }                                                                      \

   153   )

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

   155 #define DT_VOID_RETURN_MARK_DECL(name, probe)                              \

   156   DTRACE_ONLY(                                                             \

   157     class DTraceReturnProbeMark_##name {                                   \

   158      public:                                                               \

   159       ~DTraceReturnProbeMark_##name() {                                    \

   160         probe;                                                             \

   161       }                                                                    \

   162     }                                                                      \

   163   )

   164 #endif /* USDT2 */

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

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

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

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

   170 #define DT_VOID_RETURN_MARK(name) \

   171   DTRACE_ONLY( DTraceReturnProbeMark_##name dtrace_return_mark )

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

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

   176 // different behavior for Float/Double

   177 #define FP_SELECT_Boolean(intcode, fpcode) intcode

   178 #define FP_SELECT_Byte(intcode, fpcode)    intcode

   179 #define FP_SELECT_Char(intcode, fpcode)    intcode

   180 #define FP_SELECT_Short(intcode, fpcode)   intcode

   181 #define FP_SELECT_Object(intcode, fpcode)  intcode

   182 #define FP_SELECT_Int(intcode, fpcode)     intcode

   183 #define FP_SELECT_Long(intcode, fpcode)    intcode

   184 #define FP_SELECT_Float(intcode, fpcode)   fpcode

   185 #define FP_SELECT_Double(intcode, fpcode)  fpcode

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

   187   FP_SELECT_##TypeName(intcode, fpcode)

   189 #define COMMA ,

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

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

   193 #ifndef USDT2

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

   195   FP_SELECT(TypeName, \

   196     DT_RETURN_MARK_DECL(name, type), DT_VOID_RETURN_MARK_DECL(name) )

   197 #else /* USDT2 */

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

   199   FP_SELECT(TypeName, \

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

   201 #endif /* USDT2 */

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

   203   FP_SELECT(TypeName, \

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

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

   209 bool jfieldIDWorkaround::is_valid_jfieldID(klassOop k, jfieldID id) {

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

   211     uintptr_t as_uint = (uintptr_t) id;

   212     intptr_t offset = raw_instance_offset(id);

   213     if (is_checked_jfieldID(id)) {

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

   215         return false;

   216       }

   217     }

   218     return instanceKlass::cast(k)->contains_field_offset(offset);

   219   } else {

   220     JNIid* result = (JNIid*) id;

   221 #ifdef ASSERT

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

   223 #else

   224     return result != NULL;

   225 #endif

   226   }

   227 }

   230 intptr_t jfieldIDWorkaround::encode_klass_hash(klassOop k, intptr_t offset) {

   231   if (offset <= small_offset_mask) {

   232     klassOop field_klass = k;

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

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

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

   236     while (instanceKlass::cast(super_klass)->has_nonstatic_fields() &&

   237            instanceKlass::cast(super_klass)->contains_field_offset(offset)) {

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

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

   240     }

   241     debug_only(No_Safepoint_Verifier nosafepoint;)

   242     uintptr_t klass_hash = field_klass->identity_hash();

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

   244   } else {

   245 #if 0

   246     #ifndef PRODUCT

   247     {

   248       ResourceMark rm;

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

   250     }

   251     #endif

   252 #endif

   253     return 0;

   254   }

   255 }

   257 bool jfieldIDWorkaround::klass_hash_ok(klassOop k, jfieldID id) {

   258   uintptr_t as_uint = (uintptr_t) id;

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

   260   do {

   261     debug_only(No_Safepoint_Verifier nosafepoint;)

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

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

   264       return true;

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

   266   } while (k != NULL);

   267   return false;

   268 }

   270 void jfieldIDWorkaround::verify_instance_jfieldID(klassOop k, jfieldID id) {

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

   272   uintptr_t as_uint = (uintptr_t) id;

   273   intptr_t offset = raw_instance_offset(id);

   274   if (VerifyJNIFields) {

   275     if (is_checked_jfieldID(id)) {

   276       guarantee(klass_hash_ok(k, id),

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

   278     } else {

   279 #if 0

   280       #ifndef PRODUCT

   281       if (Verbose) {

   282   ResourceMark rm;

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

   284       }

   285       #endif

   286 #endif

   287     }

   288   }

   289   guarantee(instanceKlass::cast(k)->contains_field_offset(offset),

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

   291 }

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

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

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

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

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

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

   299 const int MAX_REASONABLE_LOCAL_CAPACITY = 4*K;

   302 // Wrapper to trace JNI functions

   304 #ifdef ASSERT

   305   Histogram* JNIHistogram;

   306   static volatile jint JNIHistogram_lock = 0;

   308   class JNITraceWrapper : public StackObj {

   309    public:

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

   311       if (TraceJNICalls) {

   312         va_list ap;

   313         va_start(ap, format);

   314         tty->print("JNI ");

   315         tty->vprint_cr(format, ap);

   316         va_end(ap);

   317       }

   318     }

   319   };

   321   class JNIHistogramElement : public HistogramElement {

   322     public:

   323      JNIHistogramElement(const char* name);

   324   };

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

   327     _name = elementName;

   328     uintx count = 0;

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

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

   332         count +=1;

   333         if ( (WarnOnStalledSpinLock > 0)

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

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

   336         }

   337       }

   338      }

   341     if(JNIHistogram == NULL)

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

   344     JNIHistogram->add_element(this);

   345     Atomic::dec(&JNIHistogram_lock);

   346   }

   348   #define JNICountWrapper(arg)                                     \

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

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

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

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

   353 #else

   354   #define JNIWrapper(arg)

   355 #endif

   358 // Implementation of JNI entries

   360 #ifndef USDT2

   361 DT_RETURN_MARK_DECL(DefineClass, jclass);

   362 #else /* USDT2 */

   363 DT_RETURN_MARK_DECL(DefineClass, jclass

   364                     , HOTSPOT_JNI_DEFINECLASS_RETURN(_ret_ref));

   365 #endif /* USDT2 */

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

   368                                   const jbyte *buf, jsize bufLen))

   369   JNIWrapper("DefineClass");

   371 #ifndef USDT2

   372   DTRACE_PROBE5(hotspot_jni, DefineClass__entry,

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

   374 #else /* USDT2 */

   375   HOTSPOT_JNI_DEFINECLASS_ENTRY(

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

   377 #endif /* USDT2 */

   378   jclass cls = NULL;

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

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

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

   383   if (name != NULL) {

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

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

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

   387       // into the constant pool.

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

   389     }

   390   }

   391   TempNewSymbol class_name = SymbolTable::new_symbol(name, THREAD);

   393   ResourceMark rm(THREAD);

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

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

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

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

   399     // If not, increment the corresponding counter

   400     if (ObjectSynchronizer::

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

   402         ObjectSynchronizer::owner_self) {

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

   404     }

   405   }

   406   klassOop k = SystemDictionary::resolve_from_stream(class_name, class_loader,

   407                                                      Handle(), &st, true,

   408                                                      CHECK_NULL);

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

   411     trace_class_resolution(k);

   412   }

   414   cls = (jclass)JNIHandles::make_local(

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

   416   return cls;

   417 JNI_END

   421 static bool first_time_FindClass = true;

   423 #ifndef USDT2

   424 DT_RETURN_MARK_DECL(FindClass, jclass);

   425 #else /* USDT2 */

   426 DT_RETURN_MARK_DECL(FindClass, jclass

   427                     , HOTSPOT_JNI_FINDCLASS_RETURN(_ret_ref));

   428 #endif /* USDT2 */

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

   431   JNIWrapper("FindClass");

   432 #ifndef USDT2

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

   434 #else /* USDT2 */

   435   HOTSPOT_JNI_FINDCLASS_ENTRY(

   436                               env, (char *)name);

   437 #endif /* USDT2 */

   439   jclass result = NULL;

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

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

   443   bool first_time = first_time_FindClass;

   444   first_time_FindClass = false;

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

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

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

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

   450   }

   452   //%note jni_3

   453   Handle loader;

   454   Handle protection_domain;

   455   // Find calling class

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

   457   if (k.not_null()) {

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

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

   460     // in the correct class context.

   461     if (loader.is_null() &&

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

   463       JavaValue result(T_OBJECT);

   464       JavaCalls::call_static(&result, k,

   465                                       vmSymbols::getFromClass_name(),

   466                                       vmSymbols::void_class_signature(),

   467                                       thread);

   468       if (HAS_PENDING_EXCEPTION) {

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

   470         CLEAR_PENDING_EXCEPTION;

   471         THROW_HANDLE_0(ex);

   472       }

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

   474       loader = Handle(THREAD,

   475         instanceKlass::cast(java_lang_Class::as_klassOop(mirror))->class_loader());

   476       protection_domain = Handle(THREAD,

   477         instanceKlass::cast(java_lang_Class::as_klassOop(mirror))->protection_domain());

   478     }

   479   } else {

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

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

   482   }

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

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

   486                                         protection_domain, true, thread);

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

   489     trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));

   490   }

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

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

   494   // Controlled by flag DelayCompilationDuringStartup.

   495   if (first_time && !CompileTheWorld)

   496     CompilationPolicy::completed_vm_startup();

   498   return result;

   499 JNI_END

   501 #ifndef USDT2

   502 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID);

   503 #else /* USDT2 */

   504 DT_RETURN_MARK_DECL(FromReflectedMethod, jmethodID

   505                     , HOTSPOT_JNI_FROMREFLECTEDMETHOD_RETURN((uintptr_t)_ret_ref));

   506 #endif /* USDT2 */

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

   509   JNIWrapper("FromReflectedMethod");

   510 #ifndef USDT2

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

   512 #else /* USDT2 */

   513   HOTSPOT_JNI_FROMREFLECTEDMETHOD_ENTRY(

   514                                         env, method);

   515 #endif /* USDT2 */

   516   jmethodID ret = NULL;

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

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

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

   521   oop mirror     = NULL;

   522   int slot       = 0;

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

   525     mirror = java_lang_reflect_Constructor::clazz(reflected);

   526     slot   = java_lang_reflect_Constructor::slot(reflected);

   527   } else {

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

   529     mirror = java_lang_reflect_Method::clazz(reflected);

   530     slot   = java_lang_reflect_Method::slot(reflected);

   531   }

   532   klassOop k     = java_lang_Class::as_klassOop(mirror);

   534   KlassHandle k1(THREAD, k);

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

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

   537   methodOop m = instanceKlass::cast(k1())->method_with_idnum(slot);

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

   539   return ret;

   540 JNI_END

   542 #ifndef USDT2

   543 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID);

   544 #else /* USDT2 */

   545 DT_RETURN_MARK_DECL(FromReflectedField, jfieldID

   546                     , HOTSPOT_JNI_FROMREFLECTEDFIELD_RETURN((uintptr_t)_ret_ref));

   547 #endif /* USDT2 */

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

   550   JNIWrapper("FromReflectedField");

   551 #ifndef USDT2

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

   553 #else /* USDT2 */

   554   HOTSPOT_JNI_FROMREFLECTEDFIELD_ENTRY(

   555                                        env, field);

   556 #endif /* USDT2 */

   557   jfieldID ret = NULL;

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

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

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

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

   563   klassOop k      = java_lang_Class::as_klassOop(mirror);

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

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

   567   KlassHandle k1(THREAD, k);

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

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

   571   // First check if this is a static field

   572   if (modifiers & JVM_ACC_STATIC) {

   573     intptr_t offset = instanceKlass::cast(k1())->field_offset( slot );

   574     JNIid* id = instanceKlass::cast(k1())->jni_id_for(offset);

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

   576     debug_only(id->set_is_static_field_id();)

   577     // A jfieldID for a static field is a JNIid specifying the field holder and the offset within the klassOop

   578     ret = jfieldIDWorkaround::to_static_jfieldID(id);

   579     return ret;

   580   }

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

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

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

   585   intptr_t offset = instanceKlass::cast(k1())->field_offset( slot );

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

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

   588   return ret;

   589 JNI_END

   591 #ifndef USDT2

   592 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject);

   593 #else /* USDT2 */

   594 DT_RETURN_MARK_DECL(ToReflectedMethod, jobject

   595                     , HOTSPOT_JNI_TOREFLECTEDMETHOD_RETURN(_ret_ref));

   596 #endif /* USDT2 */

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

   599   JNIWrapper("ToReflectedMethod");

   600 #ifndef USDT2

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

   602 #else /* USDT2 */

   603   HOTSPOT_JNI_TOREFLECTEDMETHOD_ENTRY(

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

   605 #endif /* USDT2 */

   606   jobject ret = NULL;

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

   609   methodHandle m (THREAD, JNIHandles::resolve_jmethod_id(method_id));

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

   611   oop reflection_method;

   612   if (m->is_initializer()) {

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

   614   } else {

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

   616   }

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

   618   return ret;

   619 JNI_END

   621 #ifndef USDT2

   622 DT_RETURN_MARK_DECL(GetSuperclass, jclass);

   623 #else /* USDT2 */

   624 DT_RETURN_MARK_DECL(GetSuperclass, jclass

   625                     , HOTSPOT_JNI_GETSUPERCLASS_RETURN(_ret_ref));

   626 #endif /* USDT2 */

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

   629   JNIWrapper("GetSuperclass");

   630 #ifndef USDT2

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

   632 #else /* USDT2 */

   633   HOTSPOT_JNI_GETSUPERCLASS_ENTRY(

   634                                   env, sub);

   635 #endif /* USDT2 */

   636   jclass obj = NULL;

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

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

   640   // primitive classes return NULL

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

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

   644   // arrays return Object

   645   // interfaces return NULL

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

   647   klassOop k = java_lang_Class::as_klassOop(mirror);

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

   650   // return mirror for superclass

   651   klassOop super = Klass::cast(k)->java_super();

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

   653   debug_only(klassOop super2 = ( Klass::cast(k)->oop_is_javaArray()

   654                                  ? SystemDictionary::Object_klass()

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

   656   assert(super == super2,

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

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

   659   return obj;

   660 JNI_END

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

   663   JNIWrapper("IsSubclassOf");

   664 #ifndef USDT2

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

   666 #else /* USDT2 */

   667   HOTSPOT_JNI_ISASSIGNABLEFROM_ENTRY(

   668                                      env, sub, super);

   669 #endif /* USDT2 */

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

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

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

   673       java_lang_Class::is_primitive(super_mirror)) {

   674     jboolean ret = (sub_mirror == super_mirror);

   675 #ifndef USDT2

   676     DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   677 #else /* USDT2 */

   678     HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   679                                         ret);

   680 #endif /* USDT2 */

   681     return ret;

   682   }

   683   klassOop sub_klass   = java_lang_Class::as_klassOop(sub_mirror);

   684   klassOop super_klass = java_lang_Class::as_klassOop(super_mirror);

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

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

   687                    JNI_TRUE : JNI_FALSE;

   688 #ifndef USDT2

   689   DTRACE_PROBE1(hotspot_jni, IsAssignableFrom__return, ret);

   690 #else /* USDT2 */

   691   HOTSPOT_JNI_ISASSIGNABLEFROM_RETURN(

   692                                       ret);

   693 #endif /* USDT2 */

   694   return ret;

   695 JNI_END

   697 #ifndef USDT2

   698 DT_RETURN_MARK_DECL(Throw, jint);

   699 #else /* USDT2 */

   700 DT_RETURN_MARK_DECL(Throw, jint

   701                     , HOTSPOT_JNI_THROW_RETURN(_ret_ref));

   702 #endif /* USDT2 */

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

   705   JNIWrapper("Throw");

   706 #ifndef USDT2

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

   708 #else /* USDT2 */

   709   HOTSPOT_JNI_THROW_ENTRY(

   710  env, obj);

   711 #endif /* USDT2 */

   712   jint ret = JNI_OK;

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

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

   716   ShouldNotReachHere();

   717 JNI_END

   719 #ifndef USDT2

   720 DT_RETURN_MARK_DECL(ThrowNew, jint);

   721 #else /* USDT2 */

   722 DT_RETURN_MARK_DECL(ThrowNew, jint

   723                     , HOTSPOT_JNI_THROWNEW_RETURN(_ret_ref));

   724 #endif /* USDT2 */

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

   727   JNIWrapper("ThrowNew");

   728 #ifndef USDT2

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

   730 #else /* USDT2 */

   731   HOTSPOT_JNI_THROWNEW_ENTRY(

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

   733 #endif /* USDT2 */

   734   jint ret = JNI_OK;

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

   737   instanceKlass* k = instanceKlass::cast(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));

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

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

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

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

   742   ShouldNotReachHere();

   743 JNI_END

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

   747 // exception in ExceptionOccurred and ExceptionCheck calls, since

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

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

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

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

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

   753 // state transition.

   755 static void jni_check_async_exceptions(JavaThread *thread) {

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

   757   thread->check_and_handle_async_exceptions();

   758 }

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

   761   JNIWrapper("ExceptionOccurred");

   762 #ifndef USDT2

   763   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__entry, env);

   764 #else /* USDT2 */

   765   HOTSPOT_JNI_EXCEPTIONOCCURRED_ENTRY(

   766                                       env);

   767 #endif /* USDT2 */

   768   jni_check_async_exceptions(thread);

   769   oop exception = thread->pending_exception();

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

   771 #ifndef USDT2

   772   DTRACE_PROBE1(hotspot_jni, ExceptionOccurred__return, ret);

   773 #else /* USDT2 */

   774   HOTSPOT_JNI_EXCEPTIONOCCURRED_RETURN(

   775                                        ret);

   776 #endif /* USDT2 */

   777   return ret;

   778 JNI_END

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

   782   JNIWrapper("ExceptionDescribe");

   783 #ifndef USDT2

   784   DTRACE_PROBE1(hotspot_jni, ExceptionDescribe__entry, env);

   785 #else /* USDT2 */

   786   HOTSPOT_JNI_EXCEPTIONDESCRIBE_ENTRY(

   787                                       env);

   788 #endif /* USDT2 */

   789   if (thread->has_pending_exception()) {

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

   791     thread->clear_pending_exception();

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

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

   794     } else {

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

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

   797         ResourceMark rm(THREAD);

   798         jio_fprintf(defaultStream::error_stream(),

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

   800       }

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

   802         JavaValue result(T_VOID);

   803         JavaCalls::call_virtual(&result,

   804                                 ex,

   805                                 KlassHandle(THREAD,

   806                                   SystemDictionary::Throwable_klass()),

   807                                 vmSymbols::printStackTrace_name(),

   808                                 vmSymbols::void_method_signature(),

   809                                 THREAD);

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

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

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

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

   814         // is expected.

   815         CLEAR_PENDING_EXCEPTION;

   816       } else {

   817         ResourceMark rm(THREAD);

   818         jio_fprintf(defaultStream::error_stream(),

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

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

   821       }

   822     }

   823   }

   824 #ifndef USDT2

   825   DTRACE_PROBE(hotspot_jni, ExceptionDescribe__return);

   826 #else /* USDT2 */

   827   HOTSPOT_JNI_EXCEPTIONDESCRIBE_RETURN(

   828                                        );

   829 #endif /* USDT2 */

   830 JNI_END

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

   834   JNIWrapper("ExceptionClear");

   835 #ifndef USDT2

   836   DTRACE_PROBE1(hotspot_jni, ExceptionClear__entry, env);

   837 #else /* USDT2 */

   838   HOTSPOT_JNI_EXCEPTIONCLEAR_ENTRY(

   839                                    env);

   840 #endif /* USDT2 */

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

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

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

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

   846     state->set_exception_caught();

   847   }

   848   thread->clear_pending_exception();

   849 #ifndef USDT2

   850   DTRACE_PROBE(hotspot_jni, ExceptionClear__return);

   851 #else /* USDT2 */

   852   HOTSPOT_JNI_EXCEPTIONCLEAR_RETURN(

   853                                     );

   854 #endif /* USDT2 */

   855 JNI_END

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

   859   JNIWrapper("FatalError");

   860 #ifndef USDT2

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

   862 #else /* USDT2 */

   863   HOTSPOT_JNI_FATALERROR_ENTRY(

   864                                env, (char *) msg);

   865 #endif /* USDT2 */

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

   867   thread->print_stack();

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

   869 JNI_END

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

   873   JNIWrapper("PushLocalFrame");

   874 #ifndef USDT2

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

   876 #else /* USDT2 */

   877   HOTSPOT_JNI_PUSHLOCALFRAME_ENTRY(

   878                                    env, capacity);

   879 #endif /* USDT2 */

   880   //%note jni_11

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

   882 #ifndef USDT2

   883     DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, JNI_ERR);

   884 #else /* USDT2 */

   885     HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   886                                       (uint32_t)JNI_ERR);

   887 #endif /* USDT2 */

   888     return JNI_ERR;

   889   }

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

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

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

   893   new_handles->set_pop_frame_link(old_handles);

   894   thread->set_active_handles(new_handles);

   895   jint ret = JNI_OK;

   896 #ifndef USDT2

   897   DTRACE_PROBE1(hotspot_jni, PushLocalFrame__return, ret);

   898 #else /* USDT2 */

   899   HOTSPOT_JNI_PUSHLOCALFRAME_RETURN(

   900                                     ret);

   901 #endif /* USDT2 */

   902   return ret;

   903 JNI_END

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

   907   JNIWrapper("PopLocalFrame");

   908 #ifndef USDT2

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

   910 #else /* USDT2 */

   911   HOTSPOT_JNI_POPLOCALFRAME_ENTRY(

   912                                   env, result);

   913 #endif /* USDT2 */

   914   //%note jni_11

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

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

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

   918   if (new_handles != NULL) {

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

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

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

   922     // the release_block call will release the blocks.

   923     thread->set_active_handles(new_handles);

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

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

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

   927   }

   928 #ifndef USDT2

   929   DTRACE_PROBE1(hotspot_jni, PopLocalFrame__return, result);

   930 #else /* USDT2 */

   931   HOTSPOT_JNI_POPLOCALFRAME_RETURN(

   932                                    result);

   933 #endif /* USDT2 */

   934   return result;

   935 JNI_END

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

   939   JNIWrapper("NewGlobalRef");

   940 #ifndef USDT2

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

   942 #else /* USDT2 */

   943   HOTSPOT_JNI_NEWGLOBALREF_ENTRY(

   944                                  env, ref);

   945 #endif /* USDT2 */

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

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

   948 #ifndef USDT2

   949   DTRACE_PROBE1(hotspot_jni, NewGlobalRef__return, ret);

   950 #else /* USDT2 */

   951   HOTSPOT_JNI_NEWGLOBALREF_RETURN(

   952                                   ret);

   953 #endif /* USDT2 */

   954   return ret;

   955 JNI_END

   957 // Must be JNI_ENTRY (with HandleMark)

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

   959   JNIWrapper("DeleteGlobalRef");

   960 #ifndef USDT2

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

   962 #else /* USDT2 */

   963   HOTSPOT_JNI_DELETEGLOBALREF_ENTRY(

   964                                     env, ref);

   965 #endif /* USDT2 */

   966   JNIHandles::destroy_global(ref);

   967 #ifndef USDT2

   968   DTRACE_PROBE(hotspot_jni, DeleteGlobalRef__return);

   969 #else /* USDT2 */

   970   HOTSPOT_JNI_DELETEGLOBALREF_RETURN(

   971                                      );

   972 #endif /* USDT2 */

   973 JNI_END

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

   976   JNIWrapper("DeleteLocalRef");

   977 #ifndef USDT2

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

   979 #else /* USDT2 */

   980   HOTSPOT_JNI_DELETELOCALREF_ENTRY(

   981                                    env, obj);

   982 #endif /* USDT2 */

   983   JNIHandles::destroy_local(obj);

   984 #ifndef USDT2

   985   DTRACE_PROBE(hotspot_jni, DeleteLocalRef__return);

   986 #else /* USDT2 */

   987   HOTSPOT_JNI_DELETELOCALREF_RETURN(

   988                                     );

   989 #endif /* USDT2 */

   990 JNI_END

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

   993   JNIWrapper("IsSameObject");

   994 #ifndef USDT2

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

   996 #else /* USDT2 */

   997   HOTSPOT_JNI_ISSAMEOBJECT_ENTRY(

   998                                  env, r1, r2);

   999 #endif /* USDT2 */

  1000   oop a = JNIHandles::resolve(r1);

  1001   oop b = JNIHandles::resolve(r2);

  1002   jboolean ret = (a == b) ? JNI_TRUE : JNI_FALSE;

  1003 #ifndef USDT2

  1004   DTRACE_PROBE1(hotspot_jni, IsSameObject__return, ret);

  1005 #else /* USDT2 */

  1006   HOTSPOT_JNI_ISSAMEOBJECT_RETURN(

  1007                                   ret);

  1008 #endif /* USDT2 */

  1009   return ret;

  1010 JNI_END

  1013 JNI_ENTRY(jobject, jni_NewLocalRef(JNIEnv *env, jobject ref))

  1014   JNIWrapper("NewLocalRef");

  1015 #ifndef USDT2

  1016   DTRACE_PROBE2(hotspot_jni, NewLocalRef__entry, env, ref);

  1017 #else /* USDT2 */

  1018   HOTSPOT_JNI_NEWLOCALREF_ENTRY(

  1019                                 env, ref);

  1020 #endif /* USDT2 */

  1021   jobject ret = JNIHandles::make_local(env, JNIHandles::resolve(ref));

  1022 #ifndef USDT2

  1023   DTRACE_PROBE1(hotspot_jni, NewLocalRef__return, ret);

  1024 #else /* USDT2 */

  1025   HOTSPOT_JNI_NEWLOCALREF_RETURN(

  1026                                  ret);

  1027 #endif /* USDT2 */

  1028   return ret;

  1029 JNI_END

  1031 JNI_LEAF(jint, jni_EnsureLocalCapacity(JNIEnv *env, jint capacity))

  1032   JNIWrapper("EnsureLocalCapacity");

  1033 #ifndef USDT2

  1034   DTRACE_PROBE2(hotspot_jni, EnsureLocalCapacity__entry, env, capacity);

  1035 #else /* USDT2 */

  1036   HOTSPOT_JNI_ENSURELOCALCAPACITY_ENTRY(

  1037                                         env, capacity);

  1038 #endif /* USDT2 */

  1039   jint ret;

  1040   if (capacity >= 0 && capacity <= MAX_REASONABLE_LOCAL_CAPACITY) {

  1041     ret = JNI_OK;

  1042   } else {

  1043     ret = JNI_ERR;

  1044   }

  1045 #ifndef USDT2

  1046   DTRACE_PROBE1(hotspot_jni, EnsureLocalCapacity__return, ret);

  1047 #else /* USDT2 */

  1048   HOTSPOT_JNI_ENSURELOCALCAPACITY_RETURN(

  1049                                          ret);

  1050 #endif /* USDT2 */

  1051   return ret;

  1052 JNI_END

  1054 // Return the Handle Type

  1055 JNI_LEAF(jobjectRefType, jni_GetObjectRefType(JNIEnv *env, jobject obj))

  1056   JNIWrapper("GetObjectRefType");

  1057 #ifndef USDT2

  1058   DTRACE_PROBE2(hotspot_jni, GetObjectRefType__entry, env, obj);

  1059 #else /* USDT2 */

  1060   HOTSPOT_JNI_GETOBJECTREFTYPE_ENTRY(

  1061                                      env, obj);

  1062 #endif /* USDT2 */

  1063   jobjectRefType ret;

  1064   if (JNIHandles::is_local_handle(thread, obj) ||

  1065       JNIHandles::is_frame_handle(thread, obj))

  1066     ret = JNILocalRefType;

  1067   else if (JNIHandles::is_global_handle(obj))

  1068     ret = JNIGlobalRefType;

  1069   else if (JNIHandles::is_weak_global_handle(obj))

  1070     ret = JNIWeakGlobalRefType;

  1071   else

  1072     ret = JNIInvalidRefType;

  1073 #ifndef USDT2

  1074   DTRACE_PROBE1(hotspot_jni, GetObjectRefType__return, ret);

  1075 #else /* USDT2 */

  1076   HOTSPOT_JNI_GETOBJECTREFTYPE_RETURN(

  1077                                       (void *) ret);

  1078 #endif /* USDT2 */

  1079   return ret;

  1080 JNI_END

  1083 class JNI_ArgumentPusher : public SignatureIterator {

  1084  protected:

  1085   JavaCallArguments*  _arguments;

  1087   virtual void get_bool   () = 0;

  1088   virtual void get_char   () = 0;

  1089   virtual void get_short  () = 0;

  1090   virtual void get_byte   () = 0;

  1091   virtual void get_int    () = 0;

  1092   virtual void get_long   () = 0;

  1093   virtual void get_float  () = 0;

  1094   virtual void get_double () = 0;

  1095   virtual void get_object () = 0;

  1097   JNI_ArgumentPusher(Symbol* signature) : SignatureIterator(signature) {

  1098     this->_return_type = T_ILLEGAL;

  1099     _arguments = NULL;

  1100   }

  1102  public:

  1103   virtual void iterate( uint64_t fingerprint ) = 0;

  1105   void set_java_argument_object(JavaCallArguments *arguments) { _arguments = arguments; }

  1107   inline void do_bool()                     { if (!is_return_type()) get_bool();   }

  1108   inline void do_char()                     { if (!is_return_type()) get_char();   }

  1109   inline void do_short()                    { if (!is_return_type()) get_short();  }

  1110   inline void do_byte()                     { if (!is_return_type()) get_byte();   }

  1111   inline void do_int()                      { if (!is_return_type()) get_int();    }

  1112   inline void do_long()                     { if (!is_return_type()) get_long();   }

  1113   inline void do_float()                    { if (!is_return_type()) get_float();  }

  1114   inline void do_double()                   { if (!is_return_type()) get_double(); }

  1115   inline void do_object(int begin, int end) { if (!is_return_type()) get_object(); }

  1116   inline void do_array(int begin, int end)  { if (!is_return_type()) get_object(); } // do_array uses get_object -- there is no get_array

  1117   inline void do_void()                     { }

  1119   JavaCallArguments* arguments()     { return _arguments; }

  1120   void push_receiver(Handle h)       { _arguments->push_oop(h); }

  1121 };

  1124 class JNI_ArgumentPusherVaArg : public JNI_ArgumentPusher {

  1125  protected:

  1126   va_list _ap;

  1128   inline void get_bool()   { _arguments->push_int(va_arg(_ap, jint)); } // bool is coerced to int when using va_arg

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

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

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

  1132   inline void get_int()    { _arguments->push_int(va_arg(_ap, jint)); }

  1134   // each of these paths is exercized by the various jck Call[Static,Nonvirtual,][Void,Int,..]Method[A,V,] tests

  1136   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }

  1137   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg

  1138   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }

  1139   inline void get_object() { jobject l = va_arg(_ap, jobject);

  1140                              _arguments->push_oop(Handle((oop *)l, false)); }

  1142   inline void set_ap(va_list rap) {

  1143 #ifdef va_copy

  1144     va_copy(_ap, rap);

  1145 #elif defined (__va_copy)

  1146     __va_copy(_ap, rap);

  1147 #else

  1148     _ap = rap;

  1149 #endif

  1150   }

  1152  public:

  1153   JNI_ArgumentPusherVaArg(Symbol* signature, va_list rap)

  1154        : JNI_ArgumentPusher(signature) {

  1155     set_ap(rap);

  1156   }

  1157   JNI_ArgumentPusherVaArg(jmethodID method_id, va_list rap)

  1158       : JNI_ArgumentPusher(JNIHandles::resolve_jmethod_id(method_id)->signature()) {

  1159     set_ap(rap);

  1160   }

  1162   // Optimized path if we have the bitvector form of signature

  1163   void iterate( uint64_t fingerprint ) {

  1164     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate();// Must be too many arguments

  1165     else {

  1166       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1167                                   result_feature_mask);

  1169       assert(fingerprint, "Fingerprint should not be 0");

  1170       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1171       while ( 1 ) {

  1172         switch ( fingerprint & parameter_feature_mask ) {

  1173           case bool_parm:

  1174           case char_parm:

  1175           case short_parm:

  1176           case byte_parm:

  1177           case int_parm:

  1178             get_int();

  1179             break;

  1180           case obj_parm:

  1181             get_object();

  1182             break;

  1183           case long_parm:

  1184             get_long();

  1185             break;

  1186           case float_parm:

  1187             get_float();

  1188             break;

  1189           case double_parm:

  1190             get_double();

  1191             break;

  1192           case done_parm:

  1193             return;

  1194             break;

  1195           default:

  1196             ShouldNotReachHere();

  1197             break;

  1198         }

  1199         fingerprint >>= parameter_feature_size;

  1200       }

  1201     }

  1202   }

  1203 };

  1206 class JNI_ArgumentPusherArray : public JNI_ArgumentPusher {

  1207  protected:

  1208   const jvalue *_ap;

  1210   inline void get_bool()   { _arguments->push_int((jint)(_ap++)->z); }

  1211   inline void get_char()   { _arguments->push_int((jint)(_ap++)->c); }

  1212   inline void get_short()  { _arguments->push_int((jint)(_ap++)->s); }

  1213   inline void get_byte()   { _arguments->push_int((jint)(_ap++)->b); }

  1214   inline void get_int()    { _arguments->push_int((jint)(_ap++)->i); }

  1216   inline void get_long()   { _arguments->push_long((_ap++)->j);  }

  1217   inline void get_float()  { _arguments->push_float((_ap++)->f); }

  1218   inline void get_double() { _arguments->push_double((_ap++)->d);}

  1219   inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }

  1221   inline void set_ap(const jvalue *rap) { _ap = rap; }

  1223  public:

  1224   JNI_ArgumentPusherArray(Symbol* signature, const jvalue *rap)

  1225        : JNI_ArgumentPusher(signature) {

  1226     set_ap(rap);

  1227   }

  1228   JNI_ArgumentPusherArray(jmethodID method_id, const jvalue *rap)

  1229       : JNI_ArgumentPusher(JNIHandles::resolve_jmethod_id(method_id)->signature()) {

  1230     set_ap(rap);

  1231   }

  1233   // Optimized path if we have the bitvector form of signature

  1234   void iterate( uint64_t fingerprint ) {

  1235     if ( fingerprint == UCONST64(-1) ) SignatureIterator::iterate(); // Must be too many arguments

  1236     else {

  1237       _return_type = (BasicType)((fingerprint >> static_feature_size) &

  1238                                   result_feature_mask);

  1239       assert(fingerprint, "Fingerprint should not be 0");

  1240       fingerprint = fingerprint >> (static_feature_size + result_feature_size);

  1241       while ( 1 ) {

  1242         switch ( fingerprint & parameter_feature_mask ) {

  1243           case bool_parm:

  1244             get_bool();

  1245             break;

  1246           case char_parm:

  1247             get_char();

  1248             break;

  1249           case short_parm:

  1250             get_short();

  1251             break;

  1252           case byte_parm:

  1253             get_byte();

  1254             break;

  1255           case int_parm:

  1256             get_int();

  1257             break;

  1258           case obj_parm:

  1259             get_object();

  1260             break;

  1261           case long_parm:

  1262             get_long();

  1263             break;

  1264           case float_parm:

  1265             get_float();

  1266             break;

  1267           case double_parm:

  1268             get_double();

  1269             break;

  1270           case done_parm:

  1271             return;

  1272             break;

  1273           default:

  1274             ShouldNotReachHere();

  1275             break;

  1276         }

  1277         fingerprint >>= parameter_feature_size;

  1278       }

  1279     }

  1280   }

  1281 };

  1284 enum JNICallType {

  1285   JNI_STATIC,

  1286   JNI_VIRTUAL,

  1287   JNI_NONVIRTUAL

  1288 };

  1290 static methodHandle jni_resolve_interface_call(Handle recv, methodHandle method, TRAPS) {

  1291   assert(!method.is_null() , "method should not be null");

  1293   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1294   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1295   KlassHandle spec_klass (THREAD, method->method_holder());

  1296   Symbol*  name  = method->name();

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

  1298   CallInfo info;

  1299   LinkResolver::resolve_interface_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1300   return info.selected_method();

  1301 }

  1303 static methodHandle jni_resolve_virtual_call(Handle recv, methodHandle method, TRAPS) {

  1304   assert(!method.is_null() , "method should not be null");

  1306   KlassHandle recv_klass; // Default to NULL (use of ?: can confuse gcc)

  1307   if (recv.not_null()) recv_klass = KlassHandle(THREAD, recv->klass());

  1308   KlassHandle spec_klass (THREAD, method->method_holder());

  1309   Symbol*  name  = method->name();

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

  1311   CallInfo info;

  1312   LinkResolver::resolve_virtual_call(info, recv, recv_klass,  spec_klass, name, signature, KlassHandle(), false, true, CHECK_(methodHandle()));

  1313   return info.selected_method();

  1314 }

  1318 static void jni_invoke_static(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1319   methodHandle method(THREAD, JNIHandles::resolve_jmethod_id(method_id));

  1321   // Create object to hold arguments for the JavaCall, and associate it with

  1322   // the jni parser

  1323   ResourceMark rm(THREAD);

  1324   int number_of_parameters = method->size_of_parameters();

  1325   JavaCallArguments java_args(number_of_parameters);

  1326   args->set_java_argument_object(&java_args);

  1328   assert(method->is_static(), "method should be static");

  1330   // Fill out JavaCallArguments object

  1331   args->iterate( Fingerprinter(method).fingerprint() );

  1332   // Initialize result type

  1333   result->set_type(args->get_ret_type());

  1335   // Invoke the method. Result is returned as oop.

  1336   JavaCalls::call(result, method, &java_args, CHECK);

  1338   // Convert result

  1339   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1340     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1341   }

  1342 }

  1345 static void jni_invoke_nonstatic(JNIEnv *env, JavaValue* result, jobject receiver, JNICallType call_type, jmethodID method_id, JNI_ArgumentPusher *args, TRAPS) {

  1346   oop recv = JNIHandles::resolve(receiver);

  1347   if (recv == NULL) {

  1348     THROW(vmSymbols::java_lang_NullPointerException());

  1349   }

  1350   Handle h_recv(THREAD, recv);

  1352   int number_of_parameters;

  1353   methodOop selected_method;

  1354   {

  1355     methodOop m = JNIHandles::resolve_jmethod_id(method_id);

  1356     number_of_parameters = m->size_of_parameters();

  1357     klassOop holder = m->method_holder();

  1358     if (!(Klass::cast(holder))->is_interface()) {

  1359       // non-interface call -- for that little speed boost, don't handlize

  1360       debug_only(No_Safepoint_Verifier nosafepoint;)

  1361       if (call_type == JNI_VIRTUAL) {

  1362         // jni_GetMethodID makes sure class is linked and initialized

  1363         // so m should have a valid vtable index.

  1364         int vtbl_index = m->vtable_index();

  1365         if (vtbl_index != methodOopDesc::nonvirtual_vtable_index) {

  1366           klassOop k = h_recv->klass();

  1367           // k might be an arrayKlassOop but all vtables start at

  1368           // the same place. The cast is to avoid virtual call and assertion.

  1369           instanceKlass *ik = (instanceKlass*)k->klass_part();

  1370           selected_method = ik->method_at_vtable(vtbl_index);

  1371         } else {

  1372           // final method

  1373           selected_method = m;

  1374         }

  1375       } else {

  1376         // JNI_NONVIRTUAL call

  1377         selected_method = m;

  1378       }

  1379     } else {

  1380       // interface call

  1381       KlassHandle h_holder(THREAD, holder);

  1383       int itbl_index = m->cached_itable_index();

  1384       if (itbl_index == -1) {

  1385         itbl_index = klassItable::compute_itable_index(m);

  1386         m->set_cached_itable_index(itbl_index);

  1387         // the above may have grabbed a lock, 'm' and anything non-handlized can't be used again

  1388       }

  1389       klassOop k = h_recv->klass();

  1390       selected_method = instanceKlass::cast(k)->method_at_itable(h_holder(), itbl_index, CHECK);

  1391     }

  1392   }

  1394   methodHandle method(THREAD, selected_method);

  1396   // Create object to hold arguments for the JavaCall, and associate it with

  1397   // the jni parser

  1398   ResourceMark rm(THREAD);

  1399   JavaCallArguments java_args(number_of_parameters);

  1400   args->set_java_argument_object(&java_args);

  1402   // handle arguments

  1403   assert(!method->is_static(), "method should not be static");

  1404   args->push_receiver(h_recv); // Push jobject handle

  1406   // Fill out JavaCallArguments object

  1407   args->iterate( Fingerprinter(method).fingerprint() );

  1408   // Initialize result type

  1409   result->set_type(args->get_ret_type());

  1411   // Invoke the method. Result is returned as oop.

  1412   JavaCalls::call(result, method, &java_args, CHECK);

  1414   // Convert result

  1415   if (result->get_type() == T_OBJECT || result->get_type() == T_ARRAY) {

  1416     result->set_jobject(JNIHandles::make_local(env, (oop) result->get_jobject()));

  1417   }

  1418 }

  1421 static instanceOop alloc_object(jclass clazz, TRAPS) {

  1422   KlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));

  1423   Klass::cast(k())->check_valid_for_instantiation(false, CHECK_NULL);

  1424   instanceKlass::cast(k())->initialize(CHECK_NULL);

  1425   instanceOop ih = instanceKlass::cast(k())->allocate_instance(THREAD);

  1426   return ih;

  1427 }

  1429 #ifndef USDT2

  1430 DT_RETURN_MARK_DECL(AllocObject, jobject);

  1431 #else /* USDT2 */

  1432 DT_RETURN_MARK_DECL(AllocObject, jobject

  1433                     , HOTSPOT_JNI_ALLOCOBJECT_RETURN(_ret_ref));

  1434 #endif /* USDT2 */

  1436 JNI_ENTRY(jobject, jni_AllocObject(JNIEnv *env, jclass clazz))

  1437   JNIWrapper("AllocObject");

  1439 #ifndef USDT2

  1440   DTRACE_PROBE2(hotspot_jni, AllocObject__entry, env, clazz);

  1441 #else /* USDT2 */

  1442   HOTSPOT_JNI_ALLOCOBJECT_ENTRY(

  1443                                 env, clazz);

  1444 #endif /* USDT2 */

  1445   jobject ret = NULL;

  1446   DT_RETURN_MARK(AllocObject, jobject, (const jobject&)ret);

  1448   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1449   ret = JNIHandles::make_local(env, i);

  1450   return ret;

  1451 JNI_END

  1453 #ifndef USDT2

  1454 DT_RETURN_MARK_DECL(NewObjectA, jobject);

  1455 #else /* USDT2 */

  1456 DT_RETURN_MARK_DECL(NewObjectA, jobject

  1457                     , HOTSPOT_JNI_NEWOBJECTA_RETURN(_ret_ref));

  1458 #endif /* USDT2 */

  1460 JNI_ENTRY(jobject, jni_NewObjectA(JNIEnv *env, jclass clazz, jmethodID methodID, const jvalue *args))

  1461   JNIWrapper("NewObjectA");

  1462 #ifndef USDT2

  1463   DTRACE_PROBE3(hotspot_jni, NewObjectA__entry, env, clazz, methodID);

  1464 #else /* USDT2 */

  1465   HOTSPOT_JNI_NEWOBJECTA_ENTRY(

  1466                                env, clazz, (uintptr_t) methodID);

  1467 #endif /* USDT2 */

  1468   jobject obj = NULL;

  1469   DT_RETURN_MARK(NewObjectA, jobject, (const jobject)obj);

  1471   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1472   obj = JNIHandles::make_local(env, i);

  1473   JavaValue jvalue(T_VOID);

  1474   JNI_ArgumentPusherArray ap(methodID, args);

  1475   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1476   return obj;

  1477 JNI_END

  1479 #ifndef USDT2

  1480 DT_RETURN_MARK_DECL(NewObjectV, jobject);

  1481 #else /* USDT2 */

  1482 DT_RETURN_MARK_DECL(NewObjectV, jobject

  1483                     , HOTSPOT_JNI_NEWOBJECTV_RETURN(_ret_ref));

  1484 #endif /* USDT2 */

  1486 JNI_ENTRY(jobject, jni_NewObjectV(JNIEnv *env, jclass clazz, jmethodID methodID, va_list args))

  1487   JNIWrapper("NewObjectV");

  1488 #ifndef USDT2

  1489   DTRACE_PROBE3(hotspot_jni, NewObjectV__entry, env, clazz, methodID);

  1490 #else /* USDT2 */

  1491   HOTSPOT_JNI_NEWOBJECTV_ENTRY(

  1492                                env, clazz, (uintptr_t) methodID);

  1493 #endif /* USDT2 */

  1494   jobject obj = NULL;

  1495   DT_RETURN_MARK(NewObjectV, jobject, (const jobject&)obj);

  1497   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1498   obj = JNIHandles::make_local(env, i);

  1499   JavaValue jvalue(T_VOID);

  1500   JNI_ArgumentPusherVaArg ap(methodID, args);

  1501   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1502   return obj;

  1503 JNI_END

  1505 #ifndef USDT2

  1506 DT_RETURN_MARK_DECL(NewObject, jobject);

  1507 #else /* USDT2 */

  1508 DT_RETURN_MARK_DECL(NewObject, jobject

  1509                     , HOTSPOT_JNI_NEWOBJECT_RETURN(_ret_ref));

  1510 #endif /* USDT2 */

  1512 JNI_ENTRY(jobject, jni_NewObject(JNIEnv *env, jclass clazz, jmethodID methodID, ...))

  1513   JNIWrapper("NewObject");

  1514 #ifndef USDT2

  1515   DTRACE_PROBE3(hotspot_jni, NewObject__entry, env, clazz, methodID);

  1516 #else /* USDT2 */

  1517   HOTSPOT_JNI_NEWOBJECT_ENTRY(

  1518                               env, clazz, (uintptr_t) methodID);

  1519 #endif /* USDT2 */

  1520   jobject obj = NULL;

  1521   DT_RETURN_MARK(NewObject, jobject, (const jobject&)obj);

  1523   instanceOop i = alloc_object(clazz, CHECK_NULL);

  1524   obj = JNIHandles::make_local(env, i);

  1525   va_list args;

  1526   va_start(args, methodID);

  1527   JavaValue jvalue(T_VOID);

  1528   JNI_ArgumentPusherVaArg ap(methodID, args);

  1529   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_NULL);

  1530   va_end(args);

  1531   return obj;

  1532 JNI_END

  1535 JNI_ENTRY(jclass, jni_GetObjectClass(JNIEnv *env, jobject obj))

  1536   JNIWrapper("GetObjectClass");

  1537 #ifndef USDT2

  1538   DTRACE_PROBE2(hotspot_jni, GetObjectClass__entry, env, obj);

  1539 #else /* USDT2 */

  1540   HOTSPOT_JNI_GETOBJECTCLASS_ENTRY(

  1541                                    env, obj);

  1542 #endif /* USDT2 */

  1543   klassOop k = JNIHandles::resolve_non_null(obj)->klass();

  1544   jclass ret =

  1545     (jclass) JNIHandles::make_local(env, Klass::cast(k)->java_mirror());

  1546 #ifndef USDT2

  1547   DTRACE_PROBE1(hotspot_jni, GetObjectClass__return, ret);

  1548 #else /* USDT2 */

  1549   HOTSPOT_JNI_GETOBJECTCLASS_RETURN(

  1550                                     ret);

  1551 #endif /* USDT2 */

  1552   return ret;

  1553 JNI_END

  1555 JNI_QUICK_ENTRY(jboolean, jni_IsInstanceOf(JNIEnv *env, jobject obj, jclass clazz))

  1556   JNIWrapper("IsInstanceOf");

  1557 #ifndef USDT2

  1558   DTRACE_PROBE3(hotspot_jni, IsInstanceOf__entry, env, obj, clazz);

  1559 #else /* USDT2 */

  1560   HOTSPOT_JNI_ISINSTANCEOF_ENTRY(

  1561                                  env, obj, clazz);

  1562 #endif /* USDT2 */

  1563   jboolean ret = JNI_TRUE;

  1564   if (obj != NULL) {

  1565     ret = JNI_FALSE;

  1566     klassOop k = java_lang_Class::as_klassOop(

  1567       JNIHandles::resolve_non_null(clazz));

  1568     if (k != NULL) {

  1569       ret = JNIHandles::resolve_non_null(obj)->is_a(k) ? JNI_TRUE : JNI_FALSE;

  1570     }

  1571   }

  1572 #ifndef USDT2

  1573   DTRACE_PROBE1(hotspot_jni, IsInstanceOf__return, ret);

  1574 #else /* USDT2 */

  1575   HOTSPOT_JNI_ISINSTANCEOF_RETURN(

  1576                                   ret);

  1577 #endif /* USDT2 */

  1578   return ret;

  1579 JNI_END

  1582 static jmethodID get_method_id(JNIEnv *env, jclass clazz, const char *name_str,

  1583                                const char *sig, bool is_static, TRAPS) {

  1584   // %%%% This code should probably just call into a method in the LinkResolver

  1585   //

  1586   // The class should have been loaded (we have an instance of the class

  1587   // passed in) so the method and signature should already be in the symbol

  1588   // table.  If they're not there, the method doesn't exist.

  1589   const char *name_to_probe = (name_str == NULL)

  1590                         ? vmSymbols::object_initializer_name()->as_C_string()

  1591                         : name_str;

  1592   TempNewSymbol name = SymbolTable::probe(name_to_probe, (int)strlen(name_to_probe));

  1593   TempNewSymbol signature = SymbolTable::probe(sig, (int)strlen(sig));

  1595   if (name == NULL || signature == NULL) {

  1596     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1597   }

  1599   // Throw a NoSuchMethodError exception if we have an instance of a

  1600   // primitive java.lang.Class

  1601   if (java_lang_Class::is_primitive(JNIHandles::resolve_non_null(clazz))) {

  1602     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1603   }

  1605   KlassHandle klass(THREAD,

  1606                java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));

  1608   // Make sure class is linked and initialized before handing id's out to

  1609   // methodOops.

  1610   Klass::cast(klass())->initialize(CHECK_NULL);

  1612   methodOop m;

  1613   if (name == vmSymbols::object_initializer_name() ||

  1614       name == vmSymbols::class_initializer_name()) {

  1615     // Never search superclasses for constructors

  1616     if (klass->oop_is_instance()) {

  1617       m = instanceKlass::cast(klass())->find_method(name, signature);

  1618     } else {

  1619       m = NULL;

  1620     }

  1621   } else {

  1622     m = klass->lookup_method(name, signature);

  1623     // Look up interfaces

  1624     if (m == NULL && klass->oop_is_instance()) {

  1625       m = instanceKlass::cast(klass())->lookup_method_in_all_interfaces(name,

  1626                                                                    signature);

  1627     }

  1628   }

  1629   if (m == NULL || (m->is_static() != is_static)) {

  1630     THROW_MSG_0(vmSymbols::java_lang_NoSuchMethodError(), name_str);

  1631   }

  1632   return m->jmethod_id();

  1633 }

  1636 JNI_ENTRY(jmethodID, jni_GetMethodID(JNIEnv *env, jclass clazz,

  1637           const char *name, const char *sig))

  1638   JNIWrapper("GetMethodID");

  1639 #ifndef USDT2

  1640   DTRACE_PROBE4(hotspot_jni, GetMethodID__entry, env, clazz, name, sig);

  1641 #else /* USDT2 */

  1642   HOTSPOT_JNI_GETMETHODID_ENTRY(

  1643                                 env, clazz, (char *) name, (char *) sig);

  1644 #endif /* USDT2 */

  1645   jmethodID ret = get_method_id(env, clazz, name, sig, false, thread);

  1646 #ifndef USDT2

  1647   DTRACE_PROBE1(hotspot_jni, GetMethodID__return, ret);

  1648 #else /* USDT2 */

  1649   HOTSPOT_JNI_GETMETHODID_RETURN(

  1650                                  (uintptr_t) ret);

  1651 #endif /* USDT2 */

  1652   return ret;

  1653 JNI_END

  1656 JNI_ENTRY(jmethodID, jni_GetStaticMethodID(JNIEnv *env, jclass clazz,

  1657           const char *name, const char *sig))

  1658   JNIWrapper("GetStaticMethodID");

  1659 #ifndef USDT2

  1660   DTRACE_PROBE4(hotspot_jni, GetStaticMethodID__entry, env, clazz, name, sig);

  1661 #else /* USDT2 */

  1662   HOTSPOT_JNI_GETSTATICMETHODID_ENTRY(

  1663                                       env, (char *) clazz, (char *) name, (char *)sig);

  1664 #endif /* USDT2 */

  1665   jmethodID ret = get_method_id(env, clazz, name, sig, true, thread);

  1666 #ifndef USDT2

  1667   DTRACE_PROBE1(hotspot_jni, GetStaticMethodID__return, ret);

  1668 #else /* USDT2 */

  1669   HOTSPOT_JNI_GETSTATICMETHODID_RETURN(

  1670                                        (uintptr_t) ret);

  1671 #endif /* USDT2 */

  1672   return ret;

  1673 JNI_END

  1677 //

  1678 // Calling Methods

  1679 //

  1681 #ifndef USDT2

  1682 #define DEFINE_CALLMETHOD(ResultType, Result, Tag) \

  1683 \

  1684   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType);\

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

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

  1687 \

  1688 JNI_ENTRY(ResultType, \

  1689           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1690   JNIWrapper("Call" XSTR(Result) "Method"); \

  1691 \

  1692   DTRACE_PROBE3(hotspot_jni, Call##Result##Method__entry, env, obj, methodID); \

  1693   ResultType ret = 0;\

  1694   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1695                      (const ResultType&)ret);\

  1696 \

  1697   va_list args; \

  1698   va_start(args, methodID); \

  1699   JavaValue jvalue(Tag); \

  1700   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1701   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1702   va_end(args); \

  1703   ret = jvalue.get_##ResultType(); \

  1704   return ret;\

  1705 JNI_END \

  1706 \

  1707 \

  1708 JNI_ENTRY(ResultType, \

  1709           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1710   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1711 \

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

  1713   ResultType ret = 0;\

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

  1715                      (const ResultType&)ret);\

  1716 \

  1717   JavaValue jvalue(Tag); \

  1718   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

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

  1721   return ret;\

  1722 JNI_END \

  1723 \

  1724 \

  1725 JNI_ENTRY(ResultType, \

  1726           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1727   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1728   DTRACE_PROBE3(hotspot_jni, Call##Result##MethodA__entry, env, obj, methodID); \

  1729   ResultType ret = 0;\

  1730   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1731                      (const ResultType&)ret);\

  1732 \

  1733   JavaValue jvalue(Tag); \

  1734   JNI_ArgumentPusherArray ap(methodID, args); \

  1735   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1736   ret = jvalue.get_##ResultType(); \

  1737   return ret;\

  1738 JNI_END

  1740 // the runtime type of subword integral basic types is integer

  1741 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN)

  1742 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE)

  1743 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR)

  1744 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT)

  1746 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT)

  1747 DEFINE_CALLMETHOD(jint,     Int,     T_INT)

  1748 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG)

  1749 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT)

  1750 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE)

  1752 DT_VOID_RETURN_MARK_DECL(CallVoidMethod);

  1753 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV);

  1754 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA);

  1756 #else /* USDT2 */

  1758 #define DEFINE_CALLMETHOD(ResultType, Result, Tag \

  1759                           , EntryProbe, ReturnProbe)    \

  1760 \

  1761   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##Method, ResultType \

  1762                           , ReturnProbe);                          \

  1763 \

  1764 JNI_ENTRY(ResultType, \

  1765           jni_Call##Result##Method(JNIEnv *env, jobject obj, jmethodID methodID, ...)) \

  1766   JNIWrapper("Call" XSTR(Result) "Method"); \

  1767 \

  1768   EntryProbe; \

  1769   ResultType ret = 0;\

  1770   DT_RETURN_MARK_FOR(Result, Call##Result##Method, ResultType, \

  1771                      (const ResultType&)ret);\

  1772 \

  1773   va_list args; \

  1774   va_start(args, methodID); \

  1775   JavaValue jvalue(Tag); \

  1776   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1777   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1778   va_end(args); \

  1779   ret = jvalue.get_##ResultType(); \

  1780   return ret;\

  1781 JNI_END

  1783 // the runtime type of subword integral basic types is integer

  1784 DEFINE_CALLMETHOD(jboolean, Boolean, T_BOOLEAN

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

  1786                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1787 DEFINE_CALLMETHOD(jbyte,    Byte,    T_BYTE

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

  1789                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1790 DEFINE_CALLMETHOD(jchar,    Char,    T_CHAR

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

  1792                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1793 DEFINE_CALLMETHOD(jshort,   Short,   T_SHORT

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

  1795                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1797 DEFINE_CALLMETHOD(jobject,  Object,  T_OBJECT

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

  1799                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1800 DEFINE_CALLMETHOD(jint,     Int,     T_INT,

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

  1802                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1803 DEFINE_CALLMETHOD(jlong,    Long,    T_LONG

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

  1805                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1806 // Float and double probes don't return value because dtrace doesn't currently support it

  1807 DEFINE_CALLMETHOD(jfloat,   Float,   T_FLOAT

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

  1809                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1810 DEFINE_CALLMETHOD(jdouble,  Double,  T_DOUBLE

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

  1812                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1814 #define DEFINE_CALLMETHODV(ResultType, Result, Tag \

  1815                           , EntryProbe, ReturnProbe)    \

  1816 \

  1817   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodV, ResultType \

  1818                           , ReturnProbe);                          \

  1819 \

  1820 JNI_ENTRY(ResultType, \

  1821           jni_Call##Result##MethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args)) \

  1822   JNIWrapper("Call" XSTR(Result) "MethodV"); \

  1823 \

  1824   EntryProbe;\

  1825   ResultType ret = 0;\

  1826   DT_RETURN_MARK_FOR(Result, Call##Result##MethodV, ResultType, \

  1827                      (const ResultType&)ret);\

  1828 \

  1829   JavaValue jvalue(Tag); \

  1830   JNI_ArgumentPusherVaArg ap(methodID, args); \

  1831   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1832   ret = jvalue.get_##ResultType(); \

  1833   return ret;\

  1834 JNI_END

  1836 // the runtime type of subword integral basic types is integer

  1837 DEFINE_CALLMETHODV(jboolean, Boolean, T_BOOLEAN

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

  1839                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1840 DEFINE_CALLMETHODV(jbyte,    Byte,    T_BYTE

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

  1842                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1843 DEFINE_CALLMETHODV(jchar,    Char,    T_CHAR

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

  1845                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1846 DEFINE_CALLMETHODV(jshort,   Short,   T_SHORT

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

  1848                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1850 DEFINE_CALLMETHODV(jobject,  Object,  T_OBJECT

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

  1852                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1853 DEFINE_CALLMETHODV(jint,     Int,     T_INT,

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

  1855                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1856 DEFINE_CALLMETHODV(jlong,    Long,    T_LONG

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

  1858                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1859 // Float and double probes don't return value because dtrace doesn't currently support it

  1860 DEFINE_CALLMETHODV(jfloat,   Float,   T_FLOAT

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

  1862                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1863 DEFINE_CALLMETHODV(jdouble,  Double,  T_DOUBLE

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

  1865                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1867 #define DEFINE_CALLMETHODA(ResultType, Result, Tag \

  1868                           , EntryProbe, ReturnProbe)    \

  1869 \

  1870   DT_RETURN_MARK_DECL_FOR(Result, Call##Result##MethodA, ResultType \

  1871                           , ReturnProbe);                          \

  1872 \

  1873 JNI_ENTRY(ResultType, \

  1874           jni_Call##Result##MethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args)) \

  1875   JNIWrapper("Call" XSTR(Result) "MethodA"); \

  1876   EntryProbe; \

  1877   ResultType ret = 0;\

  1878   DT_RETURN_MARK_FOR(Result, Call##Result##MethodA, ResultType, \

  1879                      (const ResultType&)ret);\

  1880 \

  1881   JavaValue jvalue(Tag); \

  1882   JNI_ArgumentPusherArray ap(methodID, args); \

  1883   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK_0); \

  1884   ret = jvalue.get_##ResultType(); \

  1885   return ret;\

  1886 JNI_END

  1888 // the runtime type of subword integral basic types is integer

  1889 DEFINE_CALLMETHODA(jboolean, Boolean, T_BOOLEAN

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

  1891                   HOTSPOT_JNI_CALLBOOLEANMETHOD_RETURN(_ret_ref))

  1892 DEFINE_CALLMETHODA(jbyte,    Byte,    T_BYTE

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

  1894                   HOTSPOT_JNI_CALLBYTEMETHOD_RETURN(_ret_ref))

  1895 DEFINE_CALLMETHODA(jchar,    Char,    T_CHAR

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

  1897                   HOTSPOT_JNI_CALLCHARMETHOD_RETURN(_ret_ref))

  1898 DEFINE_CALLMETHODA(jshort,   Short,   T_SHORT

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

  1900                   HOTSPOT_JNI_CALLSHORTMETHOD_RETURN(_ret_ref))

  1902 DEFINE_CALLMETHODA(jobject,  Object,  T_OBJECT

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

  1904                   HOTSPOT_JNI_CALLOBJECTMETHOD_RETURN(_ret_ref))

  1905 DEFINE_CALLMETHODA(jint,     Int,     T_INT,

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

  1907                   HOTSPOT_JNI_CALLINTMETHOD_RETURN(_ret_ref))

  1908 DEFINE_CALLMETHODA(jlong,    Long,    T_LONG

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

  1910                   HOTSPOT_JNI_CALLLONGMETHOD_RETURN(_ret_ref))

  1911 // Float and double probes don't return value because dtrace doesn't currently support it

  1912 DEFINE_CALLMETHODA(jfloat,   Float,   T_FLOAT

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

  1914                   HOTSPOT_JNI_CALLFLOATMETHOD_RETURN())

  1915 DEFINE_CALLMETHODA(jdouble,  Double,  T_DOUBLE

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

  1917                   HOTSPOT_JNI_CALLDOUBLEMETHOD_RETURN())

  1919 DT_VOID_RETURN_MARK_DECL(CallVoidMethod, HOTSPOT_JNI_CALLVOIDMETHOD_RETURN());

  1920 DT_VOID_RETURN_MARK_DECL(CallVoidMethodV, HOTSPOT_JNI_CALLVOIDMETHODV_RETURN());

  1921 DT_VOID_RETURN_MARK_DECL(CallVoidMethodA, HOTSPOT_JNI_CALLVOIDMETHODA_RETURN());

  1923 #endif /* USDT2 */

  1925 JNI_ENTRY(void, jni_CallVoidMethod(JNIEnv *env, jobject obj, jmethodID methodID, ...))

  1926   JNIWrapper("CallVoidMethod");

  1927 #ifndef USDT2

  1928   DTRACE_PROBE3(hotspot_jni, CallVoidMethod__entry, env, obj, methodID);

  1929 #else /* USDT2 */

  1930   HOTSPOT_JNI_CALLVOIDMETHOD_ENTRY(

  1931                                    env, obj, (uintptr_t) methodID);

  1932 #endif /* USDT2 */

  1933   DT_VOID_RETURN_MARK(CallVoidMethod);

  1935   va_list args;

  1936   va_start(args, methodID);

  1937   JavaValue jvalue(T_VOID);

  1938   JNI_ArgumentPusherVaArg ap(methodID, args);

  1939   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1940   va_end(args);

  1941 JNI_END

  1944 JNI_ENTRY(void, jni_CallVoidMethodV(JNIEnv *env, jobject obj, jmethodID methodID, va_list args))

  1945   JNIWrapper("CallVoidMethodV");

  1946 #ifndef USDT2

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

  1948 #else /* USDT2 */

  1949   HOTSPOT_JNI_CALLVOIDMETHODV_ENTRY(

  1950                                     env, obj, (uintptr_t) methodID);

  1951 #endif /* USDT2 */

  1952   DT_VOID_RETURN_MARK(CallVoidMethodV);

  1954   JavaValue jvalue(T_VOID);

  1955   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  1957 JNI_END

  1960 JNI_ENTRY(void, jni_CallVoidMethodA(JNIEnv *env, jobject obj, jmethodID methodID, const jvalue *args))

  1961   JNIWrapper("CallVoidMethodA");

  1962 #ifndef USDT2

  1963   DTRACE_PROBE3(hotspot_jni, CallVoidMethodA__entry, env, obj, methodID);

  1964 #else /* USDT2 */

  1965   HOTSPOT_JNI_CALLVOIDMETHODA_ENTRY(

  1966                                     env, obj, (uintptr_t) methodID);

  1967 #endif /* USDT2 */

  1968   DT_VOID_RETURN_MARK(CallVoidMethodA);

  1970   JavaValue jvalue(T_VOID);

  1971   JNI_ArgumentPusherArray ap(methodID, args);

  1972   jni_invoke_nonstatic(env, &jvalue, obj, JNI_VIRTUAL, methodID, &ap, CHECK);

  1973 JNI_END

  1976 #ifndef USDT2

  1977 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag) \

  1978 \

  1979   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType);\

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

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

  1982 \

  1983 JNI_ENTRY(ResultType, \

  1984           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  1985   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  1986 \

  1987   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##Method__entry, env, obj, cls, methodID);\

  1988   ResultType ret;\

  1989   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  1990                      (const ResultType&)ret);\

  1991 \

  1992   va_list args; \

  1993   va_start(args, methodID); \

  1994   JavaValue jvalue(Tag); \

  1995   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

  1997   va_end(args); \

  1998   ret = jvalue.get_##ResultType(); \

  1999   return ret;\

  2000 JNI_END \

  2001 \

  2002 JNI_ENTRY(ResultType, \

  2003           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2004   JNIWrapper("CallNonvitual" XSTR(Result) "#MethodV"); \

  2005   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodV__entry, env, obj, cls, methodID);\

  2006   ResultType ret;\

  2007   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2008                      (const ResultType&)ret);\

  2009 \

  2010   JavaValue jvalue(Tag); \

  2011   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2012   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2013   ret = jvalue.get_##ResultType(); \

  2014   return ret;\

  2015 JNI_END \

  2016 \

  2017 JNI_ENTRY(ResultType, \

  2018           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2019   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2020   DTRACE_PROBE4(hotspot_jni, CallNonvirtual##Result##MethodA__entry, env, obj, cls, methodID);\

  2021   ResultType ret;\

  2022   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2023                      (const ResultType&)ret);\

  2024 \

  2025   JavaValue jvalue(Tag); \

  2026   JNI_ArgumentPusherArray ap(methodID, args); \

  2027   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2028   ret = jvalue.get_##ResultType(); \

  2029   return ret;\

  2030 JNI_END

  2032 // the runtime type of subword integral basic types is integer

  2033 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN)

  2034 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE)

  2035 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR)

  2036 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT)

  2038 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT)

  2039 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT)

  2040 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG)

  2041 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT)

  2042 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE)

  2045 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod);

  2046 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV);

  2047 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA);

  2049 #else /* USDT2 */

  2051 #define DEFINE_CALLNONVIRTUALMETHOD(ResultType, Result, Tag \

  2052                                     , EntryProbe, ReturnProbe)      \

  2053 \

  2054   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##Method, ResultType \

  2055                           , ReturnProbe);\

  2056 \

  2057 JNI_ENTRY(ResultType, \

  2058           jni_CallNonvirtual##Result##Method(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...)) \

  2059   JNIWrapper("CallNonvitual" XSTR(Result) "Method"); \

  2060 \

  2061   EntryProbe;\

  2062   ResultType ret;\

  2063   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##Method, ResultType, \

  2064                      (const ResultType&)ret);\

  2065 \

  2066   va_list args; \

  2067   va_start(args, methodID); \

  2068   JavaValue jvalue(Tag); \

  2069   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2070   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2071   va_end(args); \

  2072   ret = jvalue.get_##ResultType(); \

  2073   return ret;\

  2074 JNI_END

  2076 // the runtime type of subword integral basic types is integer

  2077 DEFINE_CALLNONVIRTUALMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2079                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHOD_RETURN(_ret_ref))

  2080 DEFINE_CALLNONVIRTUALMETHOD(jbyte,    Byte,    T_BYTE

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

  2082                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHOD_RETURN(_ret_ref))

  2083 DEFINE_CALLNONVIRTUALMETHOD(jchar,    Char,    T_CHAR

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

  2085                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHOD_RETURN(_ret_ref))

  2086 DEFINE_CALLNONVIRTUALMETHOD(jshort,   Short,   T_SHORT

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

  2088                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHOD_RETURN(_ret_ref))

  2090 DEFINE_CALLNONVIRTUALMETHOD(jobject,  Object,  T_OBJECT

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

  2092                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHOD_RETURN(_ret_ref))

  2093 DEFINE_CALLNONVIRTUALMETHOD(jint,     Int,     T_INT

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

  2095                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHOD_RETURN(_ret_ref))

  2096 DEFINE_CALLNONVIRTUALMETHOD(jlong,    Long,    T_LONG

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

  2098 // Float and double probes don't return value because dtrace doesn't currently support it

  2099                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHOD_RETURN(_ret_ref))

  2100 DEFINE_CALLNONVIRTUALMETHOD(jfloat,   Float,   T_FLOAT

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

  2102                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHOD_RETURN())

  2103 DEFINE_CALLNONVIRTUALMETHOD(jdouble,  Double,  T_DOUBLE

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

  2105                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHOD_RETURN())

  2107 #define DEFINE_CALLNONVIRTUALMETHODV(ResultType, Result, Tag \

  2108                                     , EntryProbe, ReturnProbe)      \

  2109 \

  2110   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodV, ResultType \

  2111                           , ReturnProbe);\

  2112 \

  2113 JNI_ENTRY(ResultType, \

  2114           jni_CallNonvirtual##Result##MethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args)) \

  2115   JNIWrapper("CallNonvitual" XSTR(Result) "MethodV"); \

  2116 \

  2117   EntryProbe;\

  2118   ResultType ret;\

  2119   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodV, ResultType, \

  2120                      (const ResultType&)ret);\

  2121 \

  2122   JavaValue jvalue(Tag); \

  2123   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2124   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2125   ret = jvalue.get_##ResultType(); \

  2126   return ret;\

  2127 JNI_END

  2129 // the runtime type of subword integral basic types is integer

  2130 DEFINE_CALLNONVIRTUALMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2132                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODV_RETURN(_ret_ref))

  2133 DEFINE_CALLNONVIRTUALMETHODV(jbyte,    Byte,    T_BYTE

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

  2135                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODV_RETURN(_ret_ref))

  2136 DEFINE_CALLNONVIRTUALMETHODV(jchar,    Char,    T_CHAR

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

  2138                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODV_RETURN(_ret_ref))

  2139 DEFINE_CALLNONVIRTUALMETHODV(jshort,   Short,   T_SHORT

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

  2141                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODV_RETURN(_ret_ref))

  2143 DEFINE_CALLNONVIRTUALMETHODV(jobject,  Object,  T_OBJECT

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

  2145                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODV_RETURN(_ret_ref))

  2146 DEFINE_CALLNONVIRTUALMETHODV(jint,     Int,     T_INT

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

  2148                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODV_RETURN(_ret_ref))

  2149 DEFINE_CALLNONVIRTUALMETHODV(jlong,    Long,    T_LONG

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

  2151 // Float and double probes don't return value because dtrace doesn't currently support it

  2152                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODV_RETURN(_ret_ref))

  2153 DEFINE_CALLNONVIRTUALMETHODV(jfloat,   Float,   T_FLOAT

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

  2155                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODV_RETURN())

  2156 DEFINE_CALLNONVIRTUALMETHODV(jdouble,  Double,  T_DOUBLE

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

  2158                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODV_RETURN())

  2160 #define DEFINE_CALLNONVIRTUALMETHODA(ResultType, Result, Tag \

  2161                                     , EntryProbe, ReturnProbe)      \

  2162 \

  2163   DT_RETURN_MARK_DECL_FOR(Result, CallNonvirtual##Result##MethodA, ResultType \

  2164                           , ReturnProbe);\

  2165 \

  2166 JNI_ENTRY(ResultType, \

  2167           jni_CallNonvirtual##Result##MethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args)) \

  2168   JNIWrapper("CallNonvitual" XSTR(Result) "MethodA"); \

  2169 \

  2170   EntryProbe;\

  2171   ResultType ret;\

  2172   DT_RETURN_MARK_FOR(Result, CallNonvirtual##Result##MethodA, ResultType, \

  2173                      (const ResultType&)ret);\

  2174 \

  2175   JavaValue jvalue(Tag); \

  2176   JNI_ArgumentPusherArray ap(methodID, args); \

  2177   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK_0); \

  2178   ret = jvalue.get_##ResultType(); \

  2179   return ret;\

  2180 JNI_END

  2182 // the runtime type of subword integral basic types is integer

  2183 DEFINE_CALLNONVIRTUALMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2185                             HOTSPOT_JNI_CALLNONVIRTUALBOOLEANMETHODA_RETURN(_ret_ref))

  2186 DEFINE_CALLNONVIRTUALMETHODA(jbyte,    Byte,    T_BYTE

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

  2188                             HOTSPOT_JNI_CALLNONVIRTUALBYTEMETHODA_RETURN(_ret_ref))

  2189 DEFINE_CALLNONVIRTUALMETHODA(jchar,    Char,    T_CHAR

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

  2191                             HOTSPOT_JNI_CALLNONVIRTUALCHARMETHODA_RETURN(_ret_ref))

  2192 DEFINE_CALLNONVIRTUALMETHODA(jshort,   Short,   T_SHORT

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

  2194                             HOTSPOT_JNI_CALLNONVIRTUALSHORTMETHODA_RETURN(_ret_ref))

  2196 DEFINE_CALLNONVIRTUALMETHODA(jobject,  Object,  T_OBJECT

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

  2198                             HOTSPOT_JNI_CALLNONVIRTUALOBJECTMETHODA_RETURN(_ret_ref))

  2199 DEFINE_CALLNONVIRTUALMETHODA(jint,     Int,     T_INT

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

  2201                             HOTSPOT_JNI_CALLNONVIRTUALINTMETHODA_RETURN(_ret_ref))

  2202 DEFINE_CALLNONVIRTUALMETHODA(jlong,    Long,    T_LONG

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

  2204 // Float and double probes don't return value because dtrace doesn't currently support it

  2205                             HOTSPOT_JNI_CALLNONVIRTUALLONGMETHODA_RETURN(_ret_ref))

  2206 DEFINE_CALLNONVIRTUALMETHODA(jfloat,   Float,   T_FLOAT

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

  2208                             HOTSPOT_JNI_CALLNONVIRTUALFLOATMETHODA_RETURN())

  2209 DEFINE_CALLNONVIRTUALMETHODA(jdouble,  Double,  T_DOUBLE

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

  2211                             HOTSPOT_JNI_CALLNONVIRTUALDOUBLEMETHODA_RETURN())

  2213 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethod

  2214                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_RETURN());

  2215 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodV

  2216                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_RETURN());

  2217 DT_VOID_RETURN_MARK_DECL(CallNonvirtualVoidMethodA

  2218                          , HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_RETURN());

  2219 #endif /* USDT2 */

  2221 JNI_ENTRY(void, jni_CallNonvirtualVoidMethod(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, ...))

  2222   JNIWrapper("CallNonvirtualVoidMethod");

  2224 #ifndef USDT2

  2225   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethod__entry,

  2226                env, obj, cls, methodID);

  2227 #else /* USDT2 */

  2228   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHOD_ENTRY(

  2229                env, obj, cls, (uintptr_t) methodID);

  2230 #endif /* USDT2 */

  2231   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethod);

  2233   va_list args;

  2234   va_start(args, methodID);

  2235   JavaValue jvalue(T_VOID);

  2236   JNI_ArgumentPusherVaArg ap(methodID, args);

  2237   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2238   va_end(args);

  2239 JNI_END

  2242 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodV(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, va_list args))

  2243   JNIWrapper("CallNonvirtualVoidMethodV");

  2245 #ifndef USDT2

  2246   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodV__entry,

  2247                env, obj, cls, methodID);

  2248 #else /* USDT2 */

  2249   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODV_ENTRY(

  2250                env, obj, cls, (uintptr_t) methodID);

  2251 #endif /* USDT2 */

  2252   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodV);

  2254   JavaValue jvalue(T_VOID);

  2255   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  2257 JNI_END

  2260 JNI_ENTRY(void, jni_CallNonvirtualVoidMethodA(JNIEnv *env, jobject obj, jclass cls, jmethodID methodID, const jvalue *args))

  2261   JNIWrapper("CallNonvirtualVoidMethodA");

  2262 #ifndef USDT2

  2263   DTRACE_PROBE4(hotspot_jni, CallNonvirtualVoidMethodA__entry,

  2264                 env, obj, cls, methodID);

  2265 #else /* USDT2 */

  2266   HOTSPOT_JNI_CALLNONVIRTUALVOIDMETHODA_ENTRY(

  2267                 env, obj, cls, (uintptr_t) methodID);

  2268 #endif /* USDT2 */

  2269   DT_VOID_RETURN_MARK(CallNonvirtualVoidMethodA);

  2270   JavaValue jvalue(T_VOID);

  2271   JNI_ArgumentPusherArray ap(methodID, args);

  2272   jni_invoke_nonstatic(env, &jvalue, obj, JNI_NONVIRTUAL, methodID, &ap, CHECK);

  2273 JNI_END

  2276 #ifndef USDT2

  2277 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag) \

  2278 \

  2279   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType);\

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

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

  2282 \

  2283 JNI_ENTRY(ResultType, \

  2284           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2285   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2286 \

  2287   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##Method__entry, env, cls, methodID);\

  2288   ResultType ret = 0;\

  2289   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2290                      (const ResultType&)ret);\

  2291 \

  2292   va_list args; \

  2293   va_start(args, methodID); \

  2294   JavaValue jvalue(Tag); \

  2295   JNI_ArgumentPusherVaArg ap(methodID, args); \

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

  2297   va_end(args); \

  2298   ret = jvalue.get_##ResultType(); \

  2299   return ret;\

  2300 JNI_END \

  2301 \

  2302 JNI_ENTRY(ResultType, \

  2303           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2304   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2305   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodV__entry, env, cls, methodID);\

  2306   ResultType ret = 0;\

  2307   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2308                      (const ResultType&)ret);\

  2309 \

  2310   JavaValue jvalue(Tag); \

  2311   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2312   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2313   ret = jvalue.get_##ResultType(); \

  2314   return ret;\

  2315 JNI_END \

  2316 \

  2317 JNI_ENTRY(ResultType, \

  2318           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2319   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2320   DTRACE_PROBE3(hotspot_jni, CallStatic##Result##MethodA__entry, env, cls, methodID);\

  2321   ResultType ret = 0;\

  2322   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2323                      (const ResultType&)ret);\

  2324 \

  2325   JavaValue jvalue(Tag); \

  2326   JNI_ArgumentPusherArray ap(methodID, args); \

  2327   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2328   ret = jvalue.get_##ResultType(); \

  2329   return ret;\

  2330 JNI_END

  2332 // the runtime type of subword integral basic types is integer

  2333 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN)

  2334 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE)

  2335 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR)

  2336 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT)

  2338 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT)

  2339 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT)

  2340 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG)

  2341 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT)

  2342 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE)

  2345 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod);

  2346 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV);

  2347 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA);

  2349 #else /* USDT2 */

  2351 #define DEFINE_CALLSTATICMETHOD(ResultType, Result, Tag \

  2352                                 , EntryProbe, ResultProbe) \

  2353 \

  2354   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##Method, ResultType \

  2355                           , ResultProbe);                               \

  2356 \

  2357 JNI_ENTRY(ResultType, \

  2358           jni_CallStatic##Result##Method(JNIEnv *env, jclass cls, jmethodID methodID, ...)) \

  2359   JNIWrapper("CallStatic" XSTR(Result) "Method"); \

  2360 \

  2361   EntryProbe; \

  2362   ResultType ret = 0;\

  2363   DT_RETURN_MARK_FOR(Result, CallStatic##Result##Method, ResultType, \

  2364                      (const ResultType&)ret);\

  2365 \

  2366   va_list args; \

  2367   va_start(args, methodID); \

  2368   JavaValue jvalue(Tag); \

  2369   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2370   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2371   va_end(args); \

  2372   ret = jvalue.get_##ResultType(); \

  2373   return ret;\

  2374 JNI_END

  2376 // the runtime type of subword integral basic types is integer

  2377 DEFINE_CALLSTATICMETHOD(jboolean, Boolean, T_BOOLEAN

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

  2379                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHOD_RETURN(_ret_ref));

  2380 DEFINE_CALLSTATICMETHOD(jbyte,    Byte,    T_BYTE

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

  2382                         HOTSPOT_JNI_CALLSTATICBYTEMETHOD_RETURN(_ret_ref));

  2383 DEFINE_CALLSTATICMETHOD(jchar,    Char,    T_CHAR

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

  2385                         HOTSPOT_JNI_CALLSTATICCHARMETHOD_RETURN(_ret_ref));

  2386 DEFINE_CALLSTATICMETHOD(jshort,   Short,   T_SHORT

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

  2388                         HOTSPOT_JNI_CALLSTATICSHORTMETHOD_RETURN(_ret_ref));

  2390 DEFINE_CALLSTATICMETHOD(jobject,  Object,  T_OBJECT

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

  2392                         HOTSPOT_JNI_CALLSTATICOBJECTMETHOD_RETURN(_ret_ref));

  2393 DEFINE_CALLSTATICMETHOD(jint,     Int,     T_INT

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

  2395                         HOTSPOT_JNI_CALLSTATICINTMETHOD_RETURN(_ret_ref));

  2396 DEFINE_CALLSTATICMETHOD(jlong,    Long,    T_LONG

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

  2398                         HOTSPOT_JNI_CALLSTATICLONGMETHOD_RETURN(_ret_ref));

  2399 // Float and double probes don't return value because dtrace doesn't currently support it

  2400 DEFINE_CALLSTATICMETHOD(jfloat,   Float,   T_FLOAT

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

  2402                         HOTSPOT_JNI_CALLSTATICFLOATMETHOD_RETURN());

  2403 DEFINE_CALLSTATICMETHOD(jdouble,  Double,  T_DOUBLE

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

  2405                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHOD_RETURN());

  2407 #define DEFINE_CALLSTATICMETHODV(ResultType, Result, Tag \

  2408                                 , EntryProbe, ResultProbe) \

  2409 \

  2410   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodV, ResultType \

  2411                           , ResultProbe);                               \

  2412 \

  2413 JNI_ENTRY(ResultType, \

  2414           jni_CallStatic##Result##MethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args)) \

  2415   JNIWrapper("CallStatic" XSTR(Result) "MethodV"); \

  2416 \

  2417   EntryProbe; \

  2418   ResultType ret = 0;\

  2419   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodV, ResultType, \

  2420                      (const ResultType&)ret);\

  2421 \

  2422   JavaValue jvalue(Tag); \

  2423   JNI_ArgumentPusherVaArg ap(methodID, args); \

  2424   /* Make sure class is initialized before trying to invoke its method */ \

  2425   KlassHandle k(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(cls))); \

  2426   Klass::cast(k())->initialize(CHECK_0); \

  2427   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2428   va_end(args); \

  2429   ret = jvalue.get_##ResultType(); \

  2430   return ret;\

  2431 JNI_END

  2433 // the runtime type of subword integral basic types is integer

  2434 DEFINE_CALLSTATICMETHODV(jboolean, Boolean, T_BOOLEAN

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

  2436                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODV_RETURN(_ret_ref));

  2437 DEFINE_CALLSTATICMETHODV(jbyte,    Byte,    T_BYTE

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

  2439                         HOTSPOT_JNI_CALLSTATICBYTEMETHODV_RETURN(_ret_ref));

  2440 DEFINE_CALLSTATICMETHODV(jchar,    Char,    T_CHAR

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

  2442                         HOTSPOT_JNI_CALLSTATICCHARMETHODV_RETURN(_ret_ref));

  2443 DEFINE_CALLSTATICMETHODV(jshort,   Short,   T_SHORT

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

  2445                         HOTSPOT_JNI_CALLSTATICSHORTMETHODV_RETURN(_ret_ref));

  2447 DEFINE_CALLSTATICMETHODV(jobject,  Object,  T_OBJECT

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

  2449                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODV_RETURN(_ret_ref));

  2450 DEFINE_CALLSTATICMETHODV(jint,     Int,     T_INT

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

  2452                         HOTSPOT_JNI_CALLSTATICINTMETHODV_RETURN(_ret_ref));

  2453 DEFINE_CALLSTATICMETHODV(jlong,    Long,    T_LONG

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

  2455                         HOTSPOT_JNI_CALLSTATICLONGMETHODV_RETURN(_ret_ref));

  2456 // Float and double probes don't return value because dtrace doesn't currently support it

  2457 DEFINE_CALLSTATICMETHODV(jfloat,   Float,   T_FLOAT

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

  2459                         HOTSPOT_JNI_CALLSTATICFLOATMETHODV_RETURN());

  2460 DEFINE_CALLSTATICMETHODV(jdouble,  Double,  T_DOUBLE

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

  2462                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODV_RETURN());

  2464 #define DEFINE_CALLSTATICMETHODA(ResultType, Result, Tag \

  2465                                 , EntryProbe, ResultProbe) \

  2466 \

  2467   DT_RETURN_MARK_DECL_FOR(Result, CallStatic##Result##MethodA, ResultType \

  2468                           , ResultProbe);                               \

  2469 \

  2470 JNI_ENTRY(ResultType, \

  2471           jni_CallStatic##Result##MethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args)) \

  2472   JNIWrapper("CallStatic" XSTR(Result) "MethodA"); \

  2473 \

  2474   EntryProbe; \

  2475   ResultType ret = 0;\

  2476   DT_RETURN_MARK_FOR(Result, CallStatic##Result##MethodA, ResultType, \

  2477                      (const ResultType&)ret);\

  2478 \

  2479   JavaValue jvalue(Tag); \

  2480   JNI_ArgumentPusherArray ap(methodID, args); \

  2481   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK_0); \

  2482   ret = jvalue.get_##ResultType(); \

  2483   return ret;\

  2484 JNI_END

  2486 // the runtime type of subword integral basic types is integer

  2487 DEFINE_CALLSTATICMETHODA(jboolean, Boolean, T_BOOLEAN

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

  2489                         HOTSPOT_JNI_CALLSTATICBOOLEANMETHODA_RETURN(_ret_ref));

  2490 DEFINE_CALLSTATICMETHODA(jbyte,    Byte,    T_BYTE

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

  2492                         HOTSPOT_JNI_CALLSTATICBYTEMETHODA_RETURN(_ret_ref));

  2493 DEFINE_CALLSTATICMETHODA(jchar,    Char,    T_CHAR

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

  2495                         HOTSPOT_JNI_CALLSTATICCHARMETHODA_RETURN(_ret_ref));

  2496 DEFINE_CALLSTATICMETHODA(jshort,   Short,   T_SHORT

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

  2498                         HOTSPOT_JNI_CALLSTATICSHORTMETHODA_RETURN(_ret_ref));

  2500 DEFINE_CALLSTATICMETHODA(jobject,  Object,  T_OBJECT

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

  2502                         HOTSPOT_JNI_CALLSTATICOBJECTMETHODA_RETURN(_ret_ref));

  2503 DEFINE_CALLSTATICMETHODA(jint,     Int,     T_INT

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

  2505                         HOTSPOT_JNI_CALLSTATICINTMETHODA_RETURN(_ret_ref));

  2506 DEFINE_CALLSTATICMETHODA(jlong,    Long,    T_LONG

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

  2508                         HOTSPOT_JNI_CALLSTATICLONGMETHODA_RETURN(_ret_ref));

  2509 // Float and double probes don't return value because dtrace doesn't currently support it

  2510 DEFINE_CALLSTATICMETHODA(jfloat,   Float,   T_FLOAT

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

  2512                         HOTSPOT_JNI_CALLSTATICFLOATMETHODA_RETURN());

  2513 DEFINE_CALLSTATICMETHODA(jdouble,  Double,  T_DOUBLE

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

  2515                         HOTSPOT_JNI_CALLSTATICDOUBLEMETHODA_RETURN());

  2517 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethod

  2518                          , HOTSPOT_JNI_CALLSTATICVOIDMETHOD_RETURN());

  2519 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodV

  2520                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODV_RETURN());

  2521 DT_VOID_RETURN_MARK_DECL(CallStaticVoidMethodA

  2522                          , HOTSPOT_JNI_CALLSTATICVOIDMETHODA_RETURN());

  2523 #endif /* USDT2 */

  2525 JNI_ENTRY(void, jni_CallStaticVoidMethod(JNIEnv *env, jclass cls, jmethodID methodID, ...))

  2526   JNIWrapper("CallStaticVoidMethod");

  2527 #ifndef USDT2

  2528   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethod__entry, env, cls, methodID);

  2529 #else /* USDT2 */

  2530   HOTSPOT_JNI_CALLSTATICVOIDMETHOD_ENTRY(

  2531                                          env, cls, (uintptr_t) methodID);

  2532 #endif /* USDT2 */

  2533   DT_VOID_RETURN_MARK(CallStaticVoidMethod);

  2535   va_list args;

  2536   va_start(args, methodID);

  2537   JavaValue jvalue(T_VOID);

  2538   JNI_ArgumentPusherVaArg ap(methodID, args);

  2539   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2540   va_end(args);

  2541 JNI_END

  2544 JNI_ENTRY(void, jni_CallStaticVoidMethodV(JNIEnv *env, jclass cls, jmethodID methodID, va_list args))

  2545   JNIWrapper("CallStaticVoidMethodV");

  2546 #ifndef USDT2

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

  2548 #else /* USDT2 */

  2549   HOTSPOT_JNI_CALLSTATICVOIDMETHODV_ENTRY(

  2550                                           env, cls, (uintptr_t) methodID);

  2551 #endif /* USDT2 */

  2552   DT_VOID_RETURN_MARK(CallStaticVoidMethodV);

  2554   JavaValue jvalue(T_VOID);

  2555   JNI_ArgumentPusherVaArg ap(methodID, args);

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

  2557 JNI_END

  2560 JNI_ENTRY(void, jni_CallStaticVoidMethodA(JNIEnv *env, jclass cls, jmethodID methodID, const jvalue *args))

  2561   JNIWrapper("CallStaticVoidMethodA");

  2562 #ifndef USDT2

  2563   DTRACE_PROBE3(hotspot_jni, CallStaticVoidMethodA__entry, env, cls, methodID);

  2564 #else /* USDT2 */

  2565   HOTSPOT_JNI_CALLSTATICVOIDMETHODA_ENTRY(

  2566                                           env, cls, (uintptr_t) methodID);

  2567 #endif /* USDT2 */

  2568   DT_VOID_RETURN_MARK(CallStaticVoidMethodA);

  2570   JavaValue jvalue(T_VOID);

  2571   JNI_ArgumentPusherArray ap(methodID, args);

  2572   jni_invoke_static(env, &jvalue, NULL, JNI_STATIC, methodID, &ap, CHECK);

  2573 JNI_END

  2576 //

  2577 // Accessing Fields

  2578 //

  2581 #ifndef USDT2

  2582 DT_RETURN_MARK_DECL(GetFieldID, jfieldID);

  2583 #else /* USDT2 */

  2584 DT_RETURN_MARK_DECL(GetFieldID, jfieldID

  2585                     , HOTSPOT_JNI_GETFIELDID_RETURN((uintptr_t)_ret_ref));

  2586 #endif /* USDT2 */

  2588 JNI_ENTRY(jfieldID, jni_GetFieldID(JNIEnv *env, jclass clazz,

  2589           const char *name, const char *sig))

  2590   JNIWrapper("GetFieldID");

  2591 #ifndef USDT2

  2592   DTRACE_PROBE4(hotspot_jni, GetFieldID__entry, env, clazz, name, sig);

  2593 #else /* USDT2 */

  2594   HOTSPOT_JNI_GETFIELDID_ENTRY(

  2595                                env, clazz, (char *) name, (char *) sig);

  2596 #endif /* USDT2 */

  2597   jfieldID ret = 0;

  2598   DT_RETURN_MARK(GetFieldID, jfieldID, (const jfieldID&)ret);

  2600   // The class should have been loaded (we have an instance of the class

  2601   // passed in) so the field and signature should already be in the symbol

  2602   // table.  If they're not there, the field doesn't exist.

  2603   TempNewSymbol fieldname = SymbolTable::probe(name, (int)strlen(name));

  2604   TempNewSymbol signame = SymbolTable::probe(sig, (int)strlen(sig));

  2605   if (fieldname == NULL || signame == NULL) {

  2606     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2607   }

  2608   KlassHandle k(THREAD,

  2609                 java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));

  2610   // Make sure class is initialized before handing id's out to fields

  2611   Klass::cast(k())->initialize(CHECK_NULL);

  2613   fieldDescriptor fd;

  2614   if (!Klass::cast(k())->oop_is_instance() ||

  2615       !instanceKlass::cast(k())->find_field(fieldname, signame, false, &fd)) {

  2616     THROW_MSG_0(vmSymbols::java_lang_NoSuchFieldError(), (char*) name);

  2617   }

  2619   // A jfieldID for a non-static field is simply the offset of the field within the instanceOop

  2620   // It may also have hash bits for k, if VerifyJNIFields is turned on.

  2621   ret = jfieldIDWorkaround::to_instance_jfieldID(k(), fd.offset());

  2622   return ret;

  2623 JNI_END

  2626 JNI_ENTRY(jobject, jni_GetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID))

  2627   JNIWrapper("GetObjectField");

  2628 #ifndef USDT2

  2629   DTRACE_PROBE3(hotspot_jni, GetObjectField__entry, env, obj, fieldID);

  2630 #else /* USDT2 */

  2631   HOTSPOT_JNI_GETOBJECTFIELD_ENTRY(

  2632                                    env, obj, (uintptr_t) fieldID);

  2633 #endif /* USDT2 */

  2634   oop o = JNIHandles::resolve_non_null(obj);

  2635   klassOop k = o->klass();

  2636   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2637   // Keep JVMTI addition small and only check enabled flag here.

  2638   // jni_GetField_probe() assumes that is okay to create handles.

  2639   if (JvmtiExport::should_post_field_access()) {

  2640     o = JvmtiExport::jni_GetField_probe(thread, obj, o, k, fieldID, false);

  2641   }

  2642   jobject ret = JNIHandles::make_local(env, o->obj_field(offset));

  2643 #ifndef SERIALGC

  2644   // If G1 is enabled and we are accessing the value of the referent

  2645   // field in a reference object then we need to register a non-null

  2646   // referent with the SATB barrier.

  2647   if (UseG1GC) {

  2648     bool needs_barrier = false;

  2650     if (ret != NULL &&

  2651         offset == java_lang_ref_Reference::referent_offset &&

  2652         instanceKlass::cast(k)->reference_type() != REF_NONE) {

  2653       assert(instanceKlass::cast(k)->is_subclass_of(SystemDictionary::Reference_klass()), "sanity");

  2654       needs_barrier = true;

  2655     }

  2657     if (needs_barrier) {

  2658       oop referent = JNIHandles::resolve(ret);

  2659       G1SATBCardTableModRefBS::enqueue(referent);

  2660     }

  2661   }

  2662 #endif // SERIALGC

  2663 #ifndef USDT2

  2664   DTRACE_PROBE1(hotspot_jni, GetObjectField__return, ret);

  2665 #else /* USDT2 */

  2666 HOTSPOT_JNI_GETOBJECTFIELD_RETURN(

  2667                                   ret);

  2668 #endif /* USDT2 */

  2669   return ret;

  2670 JNI_END

  2673 #ifndef USDT2

  2674 #define DEFINE_GETFIELD(Return,Fieldname,Result) \

  2675 \

  2676   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return);\

  2677 \

  2678 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2679   JNIWrapper("Get" XSTR(Result) "Field"); \

  2680 \

  2681   DTRACE_PROBE3(hotspot_jni, Get##Result##Field__entry, env, obj, fieldID);\

  2682   Return ret = 0;\

  2683   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2684 \

  2685   oop o = JNIHandles::resolve_non_null(obj); \

  2686   klassOop k = o->klass(); \

  2687   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2688   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2689   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2690   /* and creates a ResetNoHandleMark.                                   */ \

  2691   if (JvmtiExport::should_post_field_access()) { \

  2692     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2693   } \

  2694   ret = o->Fieldname##_field(offset); \

  2695   return ret; \

  2696 JNI_END

  2698 DEFINE_GETFIELD(jboolean, bool,   Boolean)

  2699 DEFINE_GETFIELD(jbyte,    byte,   Byte)

  2700 DEFINE_GETFIELD(jchar,    char,   Char)

  2701 DEFINE_GETFIELD(jshort,   short,  Short)

  2702 DEFINE_GETFIELD(jint,     int,    Int)

  2703 DEFINE_GETFIELD(jlong,    long,   Long)

  2704 DEFINE_GETFIELD(jfloat,   float,  Float)

  2705 DEFINE_GETFIELD(jdouble,  double, Double)

  2707 #else /* USDT2 */

  2709 #define DEFINE_GETFIELD(Return,Fieldname,Result \

  2710   , EntryProbe, ReturnProbe) \

  2711 \

  2712   DT_RETURN_MARK_DECL_FOR(Result, Get##Result##Field, Return \

  2713   , ReturnProbe); \

  2714 \

  2715 JNI_QUICK_ENTRY(Return, jni_Get##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID)) \

  2716   JNIWrapper("Get" XSTR(Result) "Field"); \

  2717 \

  2718   EntryProbe; \

  2719   Return ret = 0;\

  2720   DT_RETURN_MARK_FOR(Result, Get##Result##Field, Return, (const Return&)ret);\

  2721 \

  2722   oop o = JNIHandles::resolve_non_null(obj); \

  2723   klassOop k = o->klass(); \

  2724   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);  \

  2725   /* Keep JVMTI addition small and only check enabled flag here.       */ \

  2726   /* jni_GetField_probe_nh() assumes that is not okay to create handles */ \

  2727   /* and creates a ResetNoHandleMark.                                   */ \

  2728   if (JvmtiExport::should_post_field_access()) { \

  2729     o = JvmtiExport::jni_GetField_probe_nh(thread, obj, o, k, fieldID, false); \

  2730   } \

  2731   ret = o->Fieldname##_field(offset); \

  2732   return ret; \

  2733 JNI_END

  2735 DEFINE_GETFIELD(jboolean, bool,   Boolean

  2736                 , HOTSPOT_JNI_GETBOOLEANFIELD_ENTRY(env, obj, (uintptr_t)fieldID),

  2737                 HOTSPOT_JNI_GETBOOLEANFIELD_RETURN(_ret_ref))

  2738 DEFINE_GETFIELD(jbyte,    byte,   Byte

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

  2740                 HOTSPOT_JNI_GETBYTEFIELD_RETURN(_ret_ref))

  2741 DEFINE_GETFIELD(jchar,    char,   Char

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

  2743                 HOTSPOT_JNI_GETCHARFIELD_RETURN(_ret_ref))

  2744 DEFINE_GETFIELD(jshort,   short,  Short

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

  2746                 HOTSPOT_JNI_GETSHORTFIELD_RETURN(_ret_ref))

  2747 DEFINE_GETFIELD(jint,     int,    Int

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

  2749                 HOTSPOT_JNI_GETINTFIELD_RETURN(_ret_ref))

  2750 DEFINE_GETFIELD(jlong,    long,   Long

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

  2752                 HOTSPOT_JNI_GETLONGFIELD_RETURN(_ret_ref))

  2753 // Float and double probes don't return value because dtrace doesn't currently support it

  2754 DEFINE_GETFIELD(jfloat,   float,  Float

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

  2756                 HOTSPOT_JNI_GETFLOATFIELD_RETURN())

  2757 DEFINE_GETFIELD(jdouble,  double, Double

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

  2759                 HOTSPOT_JNI_GETDOUBLEFIELD_RETURN())

  2760 #endif /* USDT2 */

  2762 address jni_GetBooleanField_addr() {

  2763   return (address)jni_GetBooleanField;

  2764 }

  2765 address jni_GetByteField_addr() {

  2766   return (address)jni_GetByteField;

  2767 }

  2768 address jni_GetCharField_addr() {

  2769   return (address)jni_GetCharField;

  2770 }

  2771 address jni_GetShortField_addr() {

  2772   return (address)jni_GetShortField;

  2773 }

  2774 address jni_GetIntField_addr() {

  2775   return (address)jni_GetIntField;

  2776 }

  2777 address jni_GetLongField_addr() {

  2778   return (address)jni_GetLongField;

  2779 }

  2780 address jni_GetFloatField_addr() {

  2781   return (address)jni_GetFloatField;

  2782 }

  2783 address jni_GetDoubleField_addr() {

  2784   return (address)jni_GetDoubleField;

  2785 }

  2787 JNI_QUICK_ENTRY(void, jni_SetObjectField(JNIEnv *env, jobject obj, jfieldID fieldID, jobject value))

  2788   JNIWrapper("SetObjectField");

  2789 #ifndef USDT2

  2790   DTRACE_PROBE4(hotspot_jni, SetObjectField__entry, env, obj, fieldID, value);

  2791 #else /* USDT2 */

  2792   HOTSPOT_JNI_SETOBJECTFIELD_ENTRY(

  2793                                    env, obj, (uintptr_t) fieldID, value);

  2794 #endif /* USDT2 */

  2795   oop o = JNIHandles::resolve_non_null(obj);

  2796   klassOop k = o->klass();

  2797   int offset = jfieldIDWorkaround::from_instance_jfieldID(k, fieldID);

  2798   // Keep JVMTI addition small and only check enabled flag here.

  2799   // jni_SetField_probe_nh() assumes that is not okay to create handles

  2800   // and creates a ResetNoHandleMark.

  2801   if (JvmtiExport::should_post_field_modification()) {

  2802     jvalue field_value;

  2803     field_value.l = value;

  2804     o = JvmtiExport::jni_SetField_probe_nh(thread, obj, o, k, fieldID, false, 'L', (jvalue *)&field_value);

  2805   }

  2806   o->obj_field_put(offset, JNIHandles::resolve(value));

  2807 #ifndef USDT2

  2808   DTRACE_PROBE(hotspot_jni, SetObjectField__return);

  2809 #else /* USDT2 */

  2810   HOTSPOT_JNI_SETOBJECTFIELD_RETURN(

  2811 );

  2812 #endif /* USDT2 */

  2813 JNI_END

  2815 #ifndef USDT2

  2816 #define DEFINE_SETFIELD(Argument,Fieldname,Result,SigType,unionType) \

  2817 \

  2818 JNI_QUICK_ENTRY(void, jni_Set##Result##Field(JNIEnv *env, jobject obj, jfieldID fieldID, Argument value)) \

  2819   JNIWrapper("Set" XSTR(Result) "Field"); \

  2820 \

  2821   HS_DTRACE_PROBE_CDECL_N(hotspot_jni, Set##Result##Field__entry, \

  2822     ( JNIEnv*, jobject, jfieldID FP_SELECT_##Result(COMMA Argument,/*empty*/) ) ); \

  2823   HS_DTRACE_PROBE_N(hotspot_jni, Set##Result##Field__entry, \

  2824     ( env, obj, fieldID FP_SELECT_##Result(COMMA value,/*empty*/) ) ); \

  2825 \

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

  2827   klassOop 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   klassOop 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   klassOop k = java_lang_Class::as_klassOop(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 klassOop.

  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_klassOop(JNIHandles::resolve_non_null(clazz)));

  2976   // Make sure class is initialized before handing id's out to static fields

  2977   Klass::cast(k())->initialize(CHECK_NULL);

  2979   fieldDescriptor fd;

  2980   if (!Klass::cast(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 klassOop

  2986   JNIid* id = instanceKlass::cast(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 #ifndef JNICHECK_KERNEL

  3005   DEBUG_ONLY(klassOop param_k = jniCheck::validate_class(thread, clazz);)

  3006 #endif // JNICHECK_KERNEL

  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   HS_DTRACE_PROBE_CDECL_N(hotspot_jni, SetStatic##Result##Field__entry,\

  3132     ( JNIEnv*, jclass, jfieldID FP_SELECT_##Result(COMMA Argument,/*empty*/) ) ); \

  3133   HS_DTRACE_PROBE_N(hotspot_jni, SetStatic##Result##Field__entry, \

  3134     ( env, clazz, fieldID FP_SELECT_##Result(COMMA value,/*empty*/) ) ); \

  3135 \

  3136   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3137   assert(id->is_static_field_id(), "invalid static field id"); \

  3138   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3139   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3140   if (JvmtiExport::should_post_field_modification()) { \

  3141     jvalue field_value; \

  3142     field_value.unionType = value; \

  3143     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3144   } \

  3145   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3146   DTRACE_PROBE(hotspot_jni, SetStatic##Result##Field__return);\

  3147 JNI_END

  3149 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z)

  3150 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b)

  3151 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c)

  3152 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s)

  3153 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i)

  3154 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j)

  3155 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f)

  3156 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d)

  3158 #else /* USDT2 */

  3160 #define DEFINE_SETSTATICFIELD(Argument,Fieldname,Result,SigType,unionType \

  3161                               , EntryProbe, ReturnProbe) \

  3162 \

  3163 JNI_ENTRY(void, jni_SetStatic##Result##Field(JNIEnv *env, jclass clazz, jfieldID fieldID, Argument value)) \

  3164   JNIWrapper("SetStatic" XSTR(Result) "Field"); \

  3165   EntryProbe; \

  3166 \

  3167   JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fieldID); \

  3168   assert(id->is_static_field_id(), "invalid static field id"); \

  3169   /* Keep JVMTI addition small and only check enabled flag here. */ \

  3170   /* jni_SetField_probe() assumes that is okay to create handles. */ \

  3171   if (JvmtiExport::should_post_field_modification()) { \

  3172     jvalue field_value; \

  3173     field_value.unionType = value; \

  3174     JvmtiExport::jni_SetField_probe(thread, NULL, NULL, id->holder(), fieldID, true, SigType, (jvalue *)&field_value); \

  3175   } \

  3176   id->holder()->java_mirror()-> Fieldname##_field_put (id->offset(), value); \

  3177   ReturnProbe;\

  3178 JNI_END

  3180 DEFINE_SETSTATICFIELD(jboolean, bool,   Boolean, 'Z', z

  3181                       , HOTSPOT_JNI_SETBOOLEANFIELD_ENTRY(env, clazz, (uintptr_t)fieldID, value),

  3182                       HOTSPOT_JNI_SETBOOLEANFIELD_RETURN())

  3183 DEFINE_SETSTATICFIELD(jbyte,    byte,   Byte,    'B', b

  3184                       , HOTSPOT_JNI_SETSTATICBYTEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3185                       HOTSPOT_JNI_SETSTATICBYTEFIELD_RETURN())

  3186 DEFINE_SETSTATICFIELD(jchar,    char,   Char,    'C', c

  3187                       , HOTSPOT_JNI_SETSTATICCHARFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3188                       HOTSPOT_JNI_SETSTATICCHARFIELD_RETURN())

  3189 DEFINE_SETSTATICFIELD(jshort,   short,  Short,   'S', s

  3190                       , HOTSPOT_JNI_SETSTATICSHORTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3191                       HOTSPOT_JNI_SETSTATICSHORTFIELD_RETURN())

  3192 DEFINE_SETSTATICFIELD(jint,     int,    Int,     'I', i

  3193                       , HOTSPOT_JNI_SETSTATICINTFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3194                       HOTSPOT_JNI_SETSTATICINTFIELD_RETURN())

  3195 DEFINE_SETSTATICFIELD(jlong,    long,   Long,    'J', j

  3196                       , HOTSPOT_JNI_SETSTATICLONGFIELD_ENTRY(env, clazz, (uintptr_t) fieldID, value),

  3197                       HOTSPOT_JNI_SETSTATICLONGFIELD_RETURN())

  3198 // Float and double probes don't return value because dtrace doesn't currently support it

  3199 DEFINE_SETSTATICFIELD(jfloat,   float,  Float,   'F', f

  3200                       , HOTSPOT_JNI_SETSTATICFLOATFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3201                       HOTSPOT_JNI_SETSTATICFLOATFIELD_RETURN())

  3202 DEFINE_SETSTATICFIELD(jdouble,  double, Double,  'D', d

  3203                       , HOTSPOT_JNI_SETSTATICDOUBLEFIELD_ENTRY(env, clazz, (uintptr_t) fieldID),

  3204                       HOTSPOT_JNI_SETSTATICDOUBLEFIELD_RETURN())

  3205 #endif /* USDT2 */

  3207 //

  3208 // String Operations

  3209 //

  3211 // Unicode Interface

  3213 #ifndef USDT2

  3214 DT_RETURN_MARK_DECL(NewString, jstring);

  3215 #else /* USDT2 */

  3216 DT_RETURN_MARK_DECL(NewString, jstring

  3217                     , HOTSPOT_JNI_NEWSTRING_RETURN(_ret_ref));

  3218 #endif /* USDT2 */

  3220 JNI_ENTRY(jstring, jni_NewString(JNIEnv *env, const jchar *unicodeChars, jsize len))

  3221   JNIWrapper("NewString");

  3222 #ifndef USDT2

  3223   DTRACE_PROBE3(hotspot_jni, NewString__entry, env, unicodeChars, len);

  3224 #else /* USDT2 */

  3225  HOTSPOT_JNI_NEWSTRING_ENTRY(

  3226                              env, (uint16_t *) unicodeChars, len);

  3227 #endif /* USDT2 */

  3228   jstring ret = NULL;

  3229   DT_RETURN_MARK(NewString, jstring, (const jstring&)ret);

  3230   oop string=java_lang_String::create_oop_from_unicode((jchar*) unicodeChars, len, CHECK_NULL);

  3231   ret = (jstring) JNIHandles::make_local(env, string);

  3232   return ret;

  3233 JNI_END

  3236 JNI_QUICK_ENTRY(jsize, jni_GetStringLength(JNIEnv *env, jstring string))

  3237   JNIWrapper("GetStringLength");

  3238 #ifndef USDT2

  3239   DTRACE_PROBE2(hotspot_jni, GetStringLength__entry, env, string);

  3240 #else /* USDT2 */

  3241   HOTSPOT_JNI_GETSTRINGLENGTH_ENTRY(

  3242                                     env, string);

  3243 #endif /* USDT2 */

  3244   jsize ret = java_lang_String::length(JNIHandles::resolve_non_null(string));

  3245 #ifndef USDT2

  3246   DTRACE_PROBE1(hotspot_jni, GetStringLength__return, ret);

  3247 #else /* USDT2 */

  3248  HOTSPOT_JNI_GETSTRINGLENGTH_RETURN(

  3249                                     ret);

  3250 #endif /* USDT2 */

  3251   return ret;

  3252 JNI_END

  3255 JNI_QUICK_ENTRY(const jchar*, jni_GetStringChars(

  3256   JNIEnv *env, jstring string, jboolean *isCopy))

  3257   JNIWrapper("GetStringChars");

  3258 #ifndef USDT2

  3259   DTRACE_PROBE3(hotspot_jni, GetStringChars__entry, env, string, isCopy);

  3260 #else /* USDT2 */

  3261  HOTSPOT_JNI_GETSTRINGCHARS_ENTRY(

  3262                                   env, string, (uintptr_t *) isCopy);

  3263 #endif /* USDT2 */

  3264   //%note jni_5

  3265   if (isCopy != NULL) {

  3266     *isCopy = JNI_TRUE;

  3267   }

  3268   oop s = JNIHandles::resolve_non_null(string);

  3269   int s_len = java_lang_String::length(s);

  3270   typeArrayOop s_value = java_lang_String::value(s);

  3271   int s_offset = java_lang_String::offset(s);

  3272   jchar* buf = NEW_C_HEAP_ARRAY(jchar, s_len + 1);  // add one for zero termination

  3273   if (s_len > 0) {

  3274     memcpy(buf, s_value->char_at_addr(s_offset), sizeof(jchar)*s_len);

  3275   }

  3276   buf[s_len] = 0;

  3277 #ifndef USDT2

  3278   DTRACE_PROBE1(hotspot_jni, GetStringChars__return, buf);

  3279 #else /* USDT2 */

  3280   HOTSPOT_JNI_GETSTRINGCHARS_RETURN(

  3281                                     buf);

  3282 #endif /* USDT2 */

  3283   return buf;

  3284 JNI_END

  3287 JNI_QUICK_ENTRY(void, jni_ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars))

  3288   JNIWrapper("ReleaseStringChars");

  3289 #ifndef USDT2

  3290   DTRACE_PROBE3(hotspot_jni, ReleaseStringChars__entry, env, str, chars);

  3291 #else /* USDT2 */

  3292   HOTSPOT_JNI_RELEASESTRINGCHARS_ENTRY(

  3293                                        env, str, (uint16_t *) chars);

  3294 #endif /* USDT2 */

  3295   //%note jni_6

  3296   if (chars != NULL) {

  3297     // Since String objects are supposed to be immutable, don't copy any

  3298     // new data back.  A bad user will have to go after the char array.

  3299     FreeHeap((void*) chars);

  3300   }

  3301 #ifndef USDT2

  3302   DTRACE_PROBE(hotspot_jni, ReleaseStringChars__return);

  3303 #else /* USDT2 */

  3304   HOTSPOT_JNI_RELEASESTRINGCHARS_RETURN(

  3305 );

  3306 #endif /* USDT2 */

  3307 JNI_END

  3310 // UTF Interface

  3312 #ifndef USDT2

  3313 DT_RETURN_MARK_DECL(NewStringUTF, jstring);

  3314 #else /* USDT2 */

  3315 DT_RETURN_MARK_DECL(NewStringUTF, jstring

  3316                     , HOTSPOT_JNI_NEWSTRINGUTF_RETURN(_ret_ref));

  3317 #endif /* USDT2 */

  3319 JNI_ENTRY(jstring, jni_NewStringUTF(JNIEnv *env, const char *bytes))

  3320   JNIWrapper("NewStringUTF");

  3321 #ifndef USDT2

  3322   DTRACE_PROBE2(hotspot_jni, NewStringUTF__entry, env, bytes);

  3323 #else /* USDT2 */

  3324   HOTSPOT_JNI_NEWSTRINGUTF_ENTRY(

  3325                                  env, (char *) bytes);

  3326 #endif /* USDT2 */

  3327   jstring ret;

  3328   DT_RETURN_MARK(NewStringUTF, jstring, (const jstring&)ret);

  3330   oop result = java_lang_String::create_oop_from_str((char*) bytes, CHECK_NULL);

  3331   ret = (jstring) JNIHandles::make_local(env, result);

  3332   return ret;

  3333 JNI_END

  3336 JNI_ENTRY(jsize, jni_GetStringUTFLength(JNIEnv *env, jstring string))

  3337   JNIWrapper("GetStringUTFLength");

  3338 #ifndef USDT2

  3339   DTRACE_PROBE2(hotspot_jni, GetStringUTFLength__entry, env, string);

  3340 #else /* USDT2 */

  3341  HOTSPOT_JNI_GETSTRINGUTFLENGTH_ENTRY(

  3342                                       env, string);

  3343 #endif /* USDT2 */

  3344   jsize ret = java_lang_String::utf8_length(JNIHandles::resolve_non_null(string));

  3345 #ifndef USDT2

  3346   DTRACE_PROBE1(hotspot_jni, GetStringUTFLength__return, ret);

  3347 #else /* USDT2 */

  3348   HOTSPOT_JNI_GETSTRINGUTFLENGTH_RETURN(

  3349                                         ret);

  3350 #endif /* USDT2 */

  3351   return ret;

  3352 JNI_END

  3355 JNI_ENTRY(const char*, jni_GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy))

  3356   JNIWrapper("GetStringUTFChars");

  3357 #ifndef USDT2

  3358   DTRACE_PROBE3(hotspot_jni, GetStringUTFChars__entry, env, string, isCopy);

  3359 #else /* USDT2 */

  3360  HOTSPOT_JNI_GETSTRINGUTFCHARS_ENTRY(

  3361                                      env, string, (uintptr_t *) isCopy);

  3362 #endif /* USDT2 */

  3363   oop java_string = JNIHandles::resolve_non_null(string);

  3364   size_t length = java_lang_String::utf8_length(java_string);

  3365   char* result = AllocateHeap(length + 1, "GetStringUTFChars");

  3366   java_lang_String::as_utf8_string(java_string, result, (int) length + 1);

  3367   if (isCopy != NULL) *isCopy = JNI_TRUE;

  3368 #ifndef USDT2

  3369   DTRACE_PROBE1(hotspot_jni, GetStringUTFChars__return, result);

  3370 #else /* USDT2 */

  3371  HOTSPOT_JNI_GETSTRINGUTFCHARS_RETURN(

  3372                                       result);

  3373 #endif /* USDT2 */

  3374   return result;

  3375 JNI_END

  3378 JNI_LEAF(void, jni_ReleaseStringUTFChars(JNIEnv *env, jstring str, const char *chars))

  3379   JNIWrapper("ReleaseStringUTFChars");

  3380 #ifndef USDT2

  3381   DTRACE_PROBE3(hotspot_jni, ReleaseStringUTFChars__entry, env, str, chars);

  3382 #else /* USDT2 */

  3383  HOTSPOT_JNI_RELEASESTRINGUTFCHARS_ENTRY(

  3384                                          env, str, (char *) chars);

  3385 #endif /* USDT2 */

  3386   if (chars != NULL) {

  3387     FreeHeap((char*) chars);

  3388   }

  3389 #ifndef USDT2

  3390   DTRACE_PROBE(hotspot_jni, ReleaseStringUTFChars__return);

  3391 #else /* USDT2 */

  3392 HOTSPOT_JNI_RELEASESTRINGUTFCHARS_RETURN(

  3393 );

  3394 #endif /* USDT2 */

  3395 JNI_END

  3398 JNI_QUICK_ENTRY(jsize, jni_GetArrayLength(JNIEnv *env, jarray array))

  3399   JNIWrapper("GetArrayLength");

  3400 #ifndef USDT2

  3401   DTRACE_PROBE2(hotspot_jni, GetArrayLength__entry, env, array);

  3402 #else /* USDT2 */

  3403  HOTSPOT_JNI_GETARRAYLENGTH_ENTRY(

  3404                                   env, array);

  3405 #endif /* USDT2 */

  3406   arrayOop a = arrayOop(JNIHandles::resolve_non_null(array));

  3407   assert(a->is_array(), "must be array");

  3408   jsize ret = a->length();

  3409 #ifndef USDT2

  3410   DTRACE_PROBE1(hotspot_jni, GetArrayLength__return, ret);

  3411 #else /* USDT2 */

  3412  HOTSPOT_JNI_GETARRAYLENGTH_RETURN(

  3413                                    ret);

  3414 #endif /* USDT2 */

  3415   return ret;

  3416 JNI_END

  3419 //

  3420 // Object Array Operations

  3421 //

  3423 #ifndef USDT2

  3424 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray);

  3425 #else /* USDT2 */

  3426 DT_RETURN_MARK_DECL(NewObjectArray, jobjectArray

  3427                     , HOTSPOT_JNI_NEWOBJECTARRAY_RETURN(_ret_ref));

  3428 #endif /* USDT2 */

  3430 JNI_ENTRY(jobjectArray, jni_NewObjectArray(JNIEnv *env, jsize length, jclass elementClass, jobject initialElement))

  3431   JNIWrapper("NewObjectArray");

  3432 #ifndef USDT2

  3433   DTRACE_PROBE4(hotspot_jni, NewObjectArray__entry, env, length, elementClass, initialElement);

  3434 #else /* USDT2 */

  3435  HOTSPOT_JNI_NEWOBJECTARRAY_ENTRY(

  3436                                   env, length, elementClass, initialElement);

  3437 #endif /* USDT2 */

  3438   jobjectArray ret = NULL;

  3439   DT_RETURN_MARK(NewObjectArray, jobjectArray, (const jobjectArray&)ret);

  3440   KlassHandle ek(THREAD, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(elementClass)));

  3441   klassOop ako = Klass::cast(ek())->array_klass(CHECK_NULL);

  3442   KlassHandle ak = KlassHandle(THREAD, ako);

  3443   objArrayKlass::cast(ak())->initialize(CHECK_NULL);

  3444   objArrayOop result = objArrayKlass::cast(ak())->allocate(length, CHECK_NULL);

  3445   oop initial_value = JNIHandles::resolve(initialElement);

  3446   if (initial_value != NULL) {  // array already initialized with NULL

  3447     for (int index = 0; index < length; index++) {

  3448       result->obj_at_put(index, initial_value);

  3449     }

  3450   }

  3451   ret = (jobjectArray) JNIHandles::make_local(env, result);

  3452   return ret;

  3453 JNI_END

  3455 #ifndef USDT2

  3456 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject);

  3457 #else /* USDT2 */

  3458 DT_RETURN_MARK_DECL(GetObjectArrayElement, jobject

  3459                     , HOTSPOT_JNI_GETOBJECTARRAYELEMENT_RETURN(_ret_ref));

  3460 #endif /* USDT2 */

  3462 JNI_ENTRY(jobject, jni_GetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index))

  3463   JNIWrapper("GetObjectArrayElement");

  3464 #ifndef USDT2

  3465   DTRACE_PROBE3(hotspot_jni, GetObjectArrayElement__entry, env, array, index);

  3466 #else /* USDT2 */

  3467  HOTSPOT_JNI_GETOBJECTARRAYELEMENT_ENTRY(

  3468                                          env, array, index);

  3469 #endif /* USDT2 */

  3470   jobject ret = NULL;

  3471   DT_RETURN_MARK(GetObjectArrayElement, jobject, (const jobject&)ret);

  3472   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3473   if (a->is_within_bounds(index)) {

  3474     ret = JNIHandles::make_local(env, a->obj_at(index));

  3475     return ret;

  3476   } else {

  3477     char buf[jintAsStringSize];

  3478     sprintf(buf, "%d", index);

  3479     THROW_MSG_0(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3480   }

  3481 JNI_END

  3483 #ifndef USDT2

  3484 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement);

  3485 #else /* USDT2 */

  3486 DT_VOID_RETURN_MARK_DECL(SetObjectArrayElement

  3487                          , HOTSPOT_JNI_SETOBJECTARRAYELEMENT_RETURN());

  3488 #endif /* USDT2 */

  3490 JNI_ENTRY(void, jni_SetObjectArrayElement(JNIEnv *env, jobjectArray array, jsize index, jobject value))

  3491   JNIWrapper("SetObjectArrayElement");

  3492 #ifndef USDT2

  3493   DTRACE_PROBE4(hotspot_jni, SetObjectArrayElement__entry, env, array, index, value);

  3494 #else /* USDT2 */

  3495  HOTSPOT_JNI_SETOBJECTARRAYELEMENT_ENTRY(

  3496                                          env, array, index, value);

  3497 #endif /* USDT2 */

  3498   DT_VOID_RETURN_MARK(SetObjectArrayElement);

  3500   objArrayOop a = objArrayOop(JNIHandles::resolve_non_null(array));

  3501   oop v = JNIHandles::resolve(value);

  3502   if (a->is_within_bounds(index)) {

  3503     if (v == NULL || v->is_a(objArrayKlass::cast(a->klass())->element_klass())) {

  3504       a->obj_at_put(index, v);

  3505     } else {

  3506       THROW(vmSymbols::java_lang_ArrayStoreException());

  3507     }

  3508   } else {

  3509     char buf[jintAsStringSize];

  3510     sprintf(buf, "%d", index);

  3511     THROW_MSG(vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), buf);

  3512   }

  3513 JNI_END

  3516 #ifndef USDT2

  3517 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result) \

  3518 \

  3519   DT_RETURN_MARK_DECL(New##Result##Array, Return); \

  3520 \

  3521 JNI_ENTRY(Return, \

  3522           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3523   JNIWrapper("New" XSTR(Result) "Array"); \

  3524   DTRACE_PROBE2(hotspot_jni, New##Result##Array__entry, env, len);\

  3525   Return ret = NULL;\

  3526   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3527 \

  3528   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3529   ret = (Return) JNIHandles::make_local(env, obj); \

  3530   return ret;\

  3531 JNI_END

  3533 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean)

  3534 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte)

  3535 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short)

  3536 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char)

  3537 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int)

  3538 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long)

  3539 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float)

  3540 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double)

  3542 #else /* USDT2 */

  3544 #define DEFINE_NEWSCALARARRAY(Return,Allocator,Result \

  3545                               ,EntryProbe,ReturnProbe)  \

  3546 \

  3547   DT_RETURN_MARK_DECL(New##Result##Array, Return \

  3548                       , ReturnProbe); \

  3549 \

  3550 JNI_ENTRY(Return, \

  3551           jni_New##Result##Array(JNIEnv *env, jsize len)) \

  3552   JNIWrapper("New" XSTR(Result) "Array"); \

  3553   EntryProbe; \

  3554   Return ret = NULL;\

  3555   DT_RETURN_MARK(New##Result##Array, Return, (const Return&)ret);\

  3556 \

  3557   oop obj= oopFactory::Allocator(len, CHECK_0); \

  3558   ret = (Return) JNIHandles::make_local(env, obj); \

  3559   return ret;\

  3560 JNI_END

  3562 DEFINE_NEWSCALARARRAY(jbooleanArray, new_boolArray,   Boolean,

  3563                       HOTSPOT_JNI_NEWBOOLEANARRAY_ENTRY(env, len),

  3564                       HOTSPOT_JNI_NEWBOOLEANARRAY_RETURN(_ret_ref))

  3565 DEFINE_NEWSCALARARRAY(jbyteArray,    new_byteArray,   Byte,

  3566                       HOTSPOT_JNI_NEWBYTEARRAY_ENTRY(env, len),

  3567                       HOTSPOT_JNI_NEWBYTEARRAY_RETURN(_ret_ref))

  3568 DEFINE_NEWSCALARARRAY(jshortArray,   new_shortArray,  Short,

  3569                       HOTSPOT_JNI_NEWSHORTARRAY_ENTRY(env, len),

  3570                       HOTSPOT_JNI_NEWSHORTARRAY_RETURN(_ret_ref))

  3571 DEFINE_NEWSCALARARRAY(jcharArray,    new_charArray,   Char,

  3572                       HOTSPOT_JNI_NEWCHARARRAY_ENTRY(env, len),

  3573                       HOTSPOT_JNI_NEWCHARARRAY_RETURN(_ret_ref))

  3574 DEFINE_NEWSCALARARRAY(jintArray,     new_intArray,    Int,

  3575                       HOTSPOT_JNI_NEWINTARRAY_ENTRY(env, len),

  3576                       HOTSPOT_JNI_NEWINTARRAY_RETURN(_ret_ref))

  3577 DEFINE_NEWSCALARARRAY(jlongArray,    new_longArray,   Long,

  3578                       HOTSPOT_JNI_NEWLONGARRAY_ENTRY(env, len),

  3579                       HOTSPOT_JNI_NEWLONGARRAY_RETURN(_ret_ref))

  3580 DEFINE_NEWSCALARARRAY(jfloatArray,   new_singleArray, Float,

  3581                       HOTSPOT_JNI_NEWFLOATARRAY_ENTRY(env, len),

  3582                       HOTSPOT_JNI_NEWFLOATARRAY_RETURN(_ret_ref))

  3583 DEFINE_NEWSCALARARRAY(jdoubleArray,  new_doubleArray, Double,

  3584                       HOTSPOT_JNI_NEWDOUBLEARRAY_ENTRY(env, len),

  3585                       HOTSPOT_JNI_NEWDOUBLEARRAY_RETURN(_ret_ref))

  3586 #endif /* USDT2 */

  3588 // Return an address which will fault if the caller writes to it.

  3590 static char* get_bad_address() {

  3591   static char* bad_address = NULL;

  3592   if (bad_address == NULL) {

  3593     size_t size = os::vm_allocation_granularity();

  3594     bad_address = os::reserve_memory(size);

  3595     if (bad_address != NULL) {

  3596       os::protect_memory(bad_address, size, os::MEM_PROT_READ,

  3597                          /*is_committed*/false);

  3598     }

  3599   }

  3600   return bad_address;

  3601 }

  3604 #ifndef USDT2

  3605 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag) \

  3606 \

  3607 JNI_QUICK_ENTRY(ElementType*, \

  3608           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3609   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3610   DTRACE_PROBE3(hotspot_jni, Get##Result##ArrayElements__entry, env, array, isCopy);\

  3611   /* allocate an chunk of memory in c land */ \

  3612   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3613   ElementType* result; \

  3614   int len = a->length(); \

  3615   if (len == 0) { \

  3616     /* Empty array: legal but useless, can't return NULL. \

  3617      * Return a pointer to something useless. \

  3618      * Avoid asserts in typeArrayOop. */ \

  3619     result = (ElementType*)get_bad_address(); \

  3620   } else { \

  3621     result = NEW_C_HEAP_ARRAY(ElementType, len); \

  3622     /* copy the array to the c chunk */ \

  3623     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3624   } \

  3625   if (isCopy) *isCopy = JNI_TRUE; \

  3626   DTRACE_PROBE1(hotspot_jni, Get##Result##ArrayElements__return, result);\

  3627   return result; \

  3628 JNI_END

  3630 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3631 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3632 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3633 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3634 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3635 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3636 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3637 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3639 #else /* USDT2 */

  3641 #define DEFINE_GETSCALARARRAYELEMENTS(ElementTag,ElementType,Result, Tag \

  3642                                       , EntryProbe, ReturnProbe) \

  3643 \

  3644 JNI_QUICK_ENTRY(ElementType*, \

  3645           jni_Get##Result##ArrayElements(JNIEnv *env, ElementType##Array array, jboolean *isCopy)) \

  3646   JNIWrapper("Get" XSTR(Result) "ArrayElements"); \

  3647   EntryProbe; \

  3648   /* allocate an chunk of memory in c land */ \

  3649   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3650   ElementType* result; \

  3651   int len = a->length(); \

  3652   if (len == 0) { \

  3653     /* Empty array: legal but useless, can't return NULL. \

  3654      * Return a pointer to something useless. \

  3655      * Avoid asserts in typeArrayOop. */ \

  3656     result = (ElementType*)get_bad_address(); \

  3657   } else { \

  3658     result = NEW_C_HEAP_ARRAY(ElementType, len); \

  3659     /* copy the array to the c chunk */ \

  3660     memcpy(result, a->Tag##_at_addr(0), sizeof(ElementType)*len); \

  3661   } \

  3662   if (isCopy) *isCopy = JNI_TRUE; \

  3663   ReturnProbe; \

  3664   return result; \

  3665 JNI_END

  3667 DEFINE_GETSCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3668                               , HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3669                               HOTSPOT_JNI_GETBOOLEANARRAYELEMENTS_RETURN((uintptr_t*)result))

  3670 DEFINE_GETSCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3671                               , HOTSPOT_JNI_GETBYTEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3672                               HOTSPOT_JNI_GETBYTEARRAYELEMENTS_RETURN((char*)result))

  3673 DEFINE_GETSCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3674                               , HOTSPOT_JNI_GETSHORTARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3675                               HOTSPOT_JNI_GETSHORTARRAYELEMENTS_RETURN((uint16_t*)result))

  3676 DEFINE_GETSCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3677                               , HOTSPOT_JNI_GETCHARARRAYELEMENTS_ENTRY(env, (uint16_t*) array, (uintptr_t *) isCopy),

  3678                               HOTSPOT_JNI_GETCHARARRAYELEMENTS_RETURN(result))

  3679 DEFINE_GETSCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3680                               , HOTSPOT_JNI_GETINTARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3681                               HOTSPOT_JNI_GETINTARRAYELEMENTS_RETURN((uint32_t*)result))

  3682 DEFINE_GETSCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3683                               , HOTSPOT_JNI_GETLONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3684                               HOTSPOT_JNI_GETLONGARRAYELEMENTS_RETURN(((uintptr_t*)result)))

  3685 // Float and double probes don't return value because dtrace doesn't currently support it

  3686 DEFINE_GETSCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3687                               , HOTSPOT_JNI_GETFLOATARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3688                               HOTSPOT_JNI_GETFLOATARRAYELEMENTS_RETURN(result))

  3689 DEFINE_GETSCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3690                               , HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) isCopy),

  3691                               HOTSPOT_JNI_GETDOUBLEARRAYELEMENTS_RETURN(result))

  3692 #endif /* USDT2 */

  3694 #ifndef USDT2

  3695 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag) \

  3696 \

  3697 JNI_QUICK_ENTRY(void, \

  3698           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3699                                              ElementType *buf, jint mode)) \

  3700   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3701   DTRACE_PROBE4(hotspot_jni, Release##Result##ArrayElements__entry, env, array, buf, mode);\

  3702   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3703   int len = a->length(); \

  3704   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3705     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3706       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3707     } \

  3708     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3709       FreeHeap(buf); \

  3710     } \

  3711   } \

  3712   DTRACE_PROBE(hotspot_jni, Release##Result##ArrayElements__return);\

  3713 JNI_END

  3715 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool)

  3716 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte)

  3717 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short)

  3718 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char)

  3719 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int)

  3720 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long)

  3721 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float)

  3722 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double)

  3724 #else /* USDT2 */

  3726 #define DEFINE_RELEASESCALARARRAYELEMENTS(ElementTag,ElementType,Result,Tag \

  3727                                           , EntryProbe, ReturnProbe);\

  3728 \

  3729 JNI_QUICK_ENTRY(void, \

  3730           jni_Release##Result##ArrayElements(JNIEnv *env, ElementType##Array array, \

  3731                                              ElementType *buf, jint mode)) \

  3732   JNIWrapper("Release" XSTR(Result) "ArrayElements"); \

  3733   EntryProbe; \

  3734   typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3735   int len = a->length(); \

  3736   if (len != 0) {   /* Empty array:  nothing to free or copy. */  \

  3737     if ((mode == 0) || (mode == JNI_COMMIT)) { \

  3738       memcpy(a->Tag##_at_addr(0), buf, sizeof(ElementType)*len); \

  3739     } \

  3740     if ((mode == 0) || (mode == JNI_ABORT)) { \

  3741       FreeHeap(buf); \

  3742     } \

  3743   } \

  3744   ReturnProbe; \

  3745 JNI_END

  3747 DEFINE_RELEASESCALARARRAYELEMENTS(T_BOOLEAN, jboolean, Boolean, bool

  3748                                   , HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3749                                   HOTSPOT_JNI_RELEASEBOOLEANARRAYELEMENTS_RETURN())

  3750 DEFINE_RELEASESCALARARRAYELEMENTS(T_BYTE,    jbyte,    Byte,    byte

  3751                                   , HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_ENTRY(env, array, (char *) buf, mode),

  3752                                   HOTSPOT_JNI_RELEASEBYTEARRAYELEMENTS_RETURN())

  3753 DEFINE_RELEASESCALARARRAYELEMENTS(T_SHORT,   jshort,   Short,   short

  3754                                   ,  HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3755                                   HOTSPOT_JNI_RELEASESHORTARRAYELEMENTS_RETURN())

  3756 DEFINE_RELEASESCALARARRAYELEMENTS(T_CHAR,    jchar,    Char,    char

  3757                                   ,  HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_ENTRY(env, array, (uint16_t *) buf, mode),

  3758                                   HOTSPOT_JNI_RELEASECHARARRAYELEMENTS_RETURN())

  3759 DEFINE_RELEASESCALARARRAYELEMENTS(T_INT,     jint,     Int,     int

  3760                                   , HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_ENTRY(env, array, (uint32_t *) buf, mode),

  3761                                   HOTSPOT_JNI_RELEASEINTARRAYELEMENTS_RETURN())

  3762 DEFINE_RELEASESCALARARRAYELEMENTS(T_LONG,    jlong,    Long,    long

  3763                                   , HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_ENTRY(env, array, (uintptr_t *) buf, mode),

  3764                                   HOTSPOT_JNI_RELEASELONGARRAYELEMENTS_RETURN())

  3765 DEFINE_RELEASESCALARARRAYELEMENTS(T_FLOAT,   jfloat,   Float,   float

  3766                                   , HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_ENTRY(env, array, (float *) buf, mode),

  3767                                   HOTSPOT_JNI_RELEASEFLOATARRAYELEMENTS_RETURN())

  3768 DEFINE_RELEASESCALARARRAYELEMENTS(T_DOUBLE,  jdouble,  Double,  double

  3769                                   , HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_ENTRY(env, array, (double *) buf, mode),

  3770                                   HOTSPOT_JNI_RELEASEDOUBLEARRAYELEMENTS_RETURN())

  3771 #endif /* USDT2 */

  3773 #ifndef USDT2

  3774 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3775   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion);\

  3776 \

  3777 JNI_ENTRY(void, \

  3778 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3779              jsize len, ElementType *buf)) \

  3780   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3781   DTRACE_PROBE5(hotspot_jni, Get##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3782   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3783   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3784   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3785     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3786   } else { \

  3787     if (len > 0) { \

  3788       int sc = typeArrayKlass::cast(src->klass())->log2_element_size(); \

  3789       memcpy((u_char*) buf, \

  3790              (u_char*) src->Tag##_at_addr(start), \

  3791              len << sc);                          \

  3792     } \

  3793   } \

  3794 JNI_END

  3796 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool)

  3797 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte)

  3798 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short)

  3799 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char)

  3800 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int)

  3801 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long)

  3802 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float)

  3803 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double)

  3805 #else /* USDT2 */

  3807 #define DEFINE_GETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3808                                     , EntryProbe, ReturnProbe); \

  3809   DT_VOID_RETURN_MARK_DECL(Get##Result##ArrayRegion \

  3810                            , ReturnProbe); \

  3811 \

  3812 JNI_ENTRY(void, \

  3813 jni_Get##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3814              jsize len, ElementType *buf)) \

  3815   JNIWrapper("Get" XSTR(Result) "ArrayRegion"); \

  3816   EntryProbe; \

  3817   DT_VOID_RETURN_MARK(Get##Result##ArrayRegion); \

  3818   typeArrayOop src = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3819   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)src->length())) { \

  3820     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3821   } else { \

  3822     if (len > 0) { \

  3823       int sc = typeArrayKlass::cast(src->klass())->log2_element_size(); \

  3824       memcpy((u_char*) buf, \

  3825              (u_char*) src->Tag##_at_addr(start), \

  3826              len << sc);                          \

  3827     } \

  3828   } \

  3829 JNI_END

  3831 DEFINE_GETSCALARARRAYREGION(T_BOOLEAN, jboolean,Boolean, bool

  3832                             , HOTSPOT_JNI_GETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3833                             HOTSPOT_JNI_GETBOOLEANARRAYREGION_RETURN());

  3834 DEFINE_GETSCALARARRAYREGION(T_BYTE,    jbyte,   Byte,    byte

  3835                             ,  HOTSPOT_JNI_GETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3836                             HOTSPOT_JNI_GETBYTEARRAYREGION_RETURN());

  3837 DEFINE_GETSCALARARRAYREGION(T_SHORT,   jshort,  Short,   short

  3838                             , HOTSPOT_JNI_GETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3839                             HOTSPOT_JNI_GETSHORTARRAYREGION_RETURN());

  3840 DEFINE_GETSCALARARRAYREGION(T_CHAR,    jchar,   Char,    char

  3841                             ,  HOTSPOT_JNI_GETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t*) buf),

  3842                             HOTSPOT_JNI_GETCHARARRAYREGION_RETURN());

  3843 DEFINE_GETSCALARARRAYREGION(T_INT,     jint,    Int,     int

  3844                             , HOTSPOT_JNI_GETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t*) buf),

  3845                             HOTSPOT_JNI_GETINTARRAYREGION_RETURN());

  3846 DEFINE_GETSCALARARRAYREGION(T_LONG,    jlong,   Long,    long

  3847                             ,  HOTSPOT_JNI_GETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3848                             HOTSPOT_JNI_GETLONGARRAYREGION_RETURN());

  3849 DEFINE_GETSCALARARRAYREGION(T_FLOAT,   jfloat,  Float,   float

  3850                             , HOTSPOT_JNI_GETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3851                             HOTSPOT_JNI_GETFLOATARRAYREGION_RETURN());

  3852 DEFINE_GETSCALARARRAYREGION(T_DOUBLE,  jdouble, Double,  double

  3853                             , HOTSPOT_JNI_GETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3854                             HOTSPOT_JNI_GETDOUBLEARRAYREGION_RETURN());

  3855 #endif /* USDT2 */

  3857 #ifndef USDT2

  3858 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag) \

  3859   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion);\

  3860 \

  3861 JNI_ENTRY(void, \

  3862 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3863              jsize len, const ElementType *buf)) \

  3864   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3865   DTRACE_PROBE5(hotspot_jni, Set##Result##ArrayRegion__entry, env, array, start, len, buf);\

  3866   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3867   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3868   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3869     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3870   } else { \

  3871     if (len > 0) { \

  3872       int sc = typeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3873       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3874              (u_char*) buf, \

  3875              len << sc);    \

  3876     } \

  3877   } \

  3878 JNI_END

  3880 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool)

  3881 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte)

  3882 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short)

  3883 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char)

  3884 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int)

  3885 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long)

  3886 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float)

  3887 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double)

  3889 #else /* USDT2 */

  3891 #define DEFINE_SETSCALARARRAYREGION(ElementTag,ElementType,Result, Tag \

  3892                                     , EntryProbe, ReturnProbe); \

  3893   DT_VOID_RETURN_MARK_DECL(Set##Result##ArrayRegion \

  3894                            ,ReturnProbe);           \

  3895 \

  3896 JNI_ENTRY(void, \

  3897 jni_Set##Result##ArrayRegion(JNIEnv *env, ElementType##Array array, jsize start, \

  3898              jsize len, const ElementType *buf)) \

  3899   JNIWrapper("Set" XSTR(Result) "ArrayRegion"); \

  3900   EntryProbe; \

  3901   DT_VOID_RETURN_MARK(Set##Result##ArrayRegion); \

  3902   typeArrayOop dst = typeArrayOop(JNIHandles::resolve_non_null(array)); \

  3903   if (start < 0 || len < 0 || ((unsigned int)start + (unsigned int)len > (unsigned int)dst->length())) { \

  3904     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); \

  3905   } else { \

  3906     if (len > 0) { \

  3907       int sc = typeArrayKlass::cast(dst->klass())->log2_element_size(); \

  3908       memcpy((u_char*) dst->Tag##_at_addr(start), \

  3909              (u_char*) buf, \

  3910              len << sc);    \

  3911     } \

  3912   } \

  3913 JNI_END

  3915 DEFINE_SETSCALARARRAYREGION(T_BOOLEAN, jboolean, Boolean, bool

  3916                             , HOTSPOT_JNI_SETBOOLEANARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *)buf),

  3917                             HOTSPOT_JNI_SETBOOLEANARRAYREGION_RETURN())

  3918 DEFINE_SETSCALARARRAYREGION(T_BYTE,    jbyte,    Byte,    byte

  3919                             , HOTSPOT_JNI_SETBYTEARRAYREGION_ENTRY(env, array, start, len, (char *) buf),

  3920                             HOTSPOT_JNI_SETBYTEARRAYREGION_RETURN())

  3921 DEFINE_SETSCALARARRAYREGION(T_SHORT,   jshort,   Short,   short

  3922                             , HOTSPOT_JNI_SETSHORTARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3923                             HOTSPOT_JNI_SETSHORTARRAYREGION_RETURN())

  3924 DEFINE_SETSCALARARRAYREGION(T_CHAR,    jchar,    Char,    char

  3925                             , HOTSPOT_JNI_SETCHARARRAYREGION_ENTRY(env, array, start, len, (uint16_t *) buf),

  3926                             HOTSPOT_JNI_SETCHARARRAYREGION_RETURN())

  3927 DEFINE_SETSCALARARRAYREGION(T_INT,     jint,     Int,     int

  3928                             , HOTSPOT_JNI_SETINTARRAYREGION_ENTRY(env, array, start, len, (uint32_t *) buf),

  3929                             HOTSPOT_JNI_SETINTARRAYREGION_RETURN())

  3930 DEFINE_SETSCALARARRAYREGION(T_LONG,    jlong,    Long,    long

  3931                             , HOTSPOT_JNI_SETLONGARRAYREGION_ENTRY(env, array, start, len, (uintptr_t *) buf),

  3932                             HOTSPOT_JNI_SETLONGARRAYREGION_RETURN())

  3933 DEFINE_SETSCALARARRAYREGION(T_FLOAT,   jfloat,   Float,   float

  3934                             , HOTSPOT_JNI_SETFLOATARRAYREGION_ENTRY(env, array, start, len, (float *) buf),

  3935                             HOTSPOT_JNI_SETFLOATARRAYREGION_RETURN())

  3936 DEFINE_SETSCALARARRAYREGION(T_DOUBLE,  jdouble,  Double,  double

  3937                             , HOTSPOT_JNI_SETDOUBLEARRAYREGION_ENTRY(env, array, start, len, (double *) buf),

  3938                             HOTSPOT_JNI_SETDOUBLEARRAYREGION_RETURN())

  3939 #endif /* USDT2 */

  3942 //

  3943 // Interception of natives

  3944 //

  3946 // The RegisterNatives call being attempted tried to register with a method that

  3947 // is not native.  Ask JVM TI what prefixes have been specified.  Then check

  3948 // to see if the native method is now wrapped with the prefixes.  See the

  3949 // SetNativeMethodPrefix(es) functions in the JVM TI Spec for details.

  3950 static methodOop find_prefixed_native(KlassHandle k,

  3951                                       Symbol* name, Symbol* signature, TRAPS) {

  3952   ResourceMark rm(THREAD);

  3953   methodOop 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 = Klass::cast(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   return NULL; // not found

  3984 }

  3986 static bool register_native(KlassHandle k, Symbol* name, Symbol* signature, address entry, TRAPS) {

  3987   methodOop method = Klass::cast(k())->lookup_method(name, signature);

  3988   if (method == NULL) {

  3989     ResourceMark rm;

  3990     stringStream st;

  3991     st.print("Method %s name or signature does not match",

  3992              methodOopDesc::name_and_sig_as_C_string(Klass::cast(k()), name, signature));

  3993     THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  3994   }

  3995   if (!method->is_native()) {

  3996     // trying to register to a non-native method, see if a JVM TI agent has added prefix(es)

  3997     method = find_prefixed_native(k, name, signature, THREAD);

  3998     if (method == NULL) {

  3999       ResourceMark rm;

  4000       stringStream st;

  4001       st.print("Method %s is not declared as native",

  4002                methodOopDesc::name_and_sig_as_C_string(Klass::cast(k()), name, signature));

  4003       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), false);

  4004     }

  4005   }

  4007   if (entry != NULL) {

  4008     method->set_native_function(entry,

  4009       methodOopDesc::native_bind_event_is_interesting);

  4010   } else {

  4011     method->clear_native_function();

  4012   }

  4013   if (PrintJNIResolving) {

  4014     ResourceMark rm(THREAD);

  4015     tty->print_cr("[Registering JNI native method %s.%s]",

  4016       Klass::cast(method->method_holder())->external_name(),

  4017       method->name()->as_C_string());

  4018   }

  4019   return true;

  4020 }

  4022 #ifndef USDT2

  4023 DT_RETURN_MARK_DECL(RegisterNatives, jint);

  4024 #else /* USDT2 */

  4025 DT_RETURN_MARK_DECL(RegisterNatives, jint

  4026                     , HOTSPOT_JNI_REGISTERNATIVES_RETURN(_ret_ref));

  4027 #endif /* USDT2 */

  4029 JNI_ENTRY(jint, jni_RegisterNatives(JNIEnv *env, jclass clazz,

  4030                                     const JNINativeMethod *methods,

  4031                                     jint nMethods))

  4032   JNIWrapper("RegisterNatives");

  4033 #ifndef USDT2

  4034   DTRACE_PROBE4(hotspot_jni, RegisterNatives__entry, env, clazz, methods, nMethods);

  4035 #else /* USDT2 */

  4036   HOTSPOT_JNI_REGISTERNATIVES_ENTRY(

  4037                                     env, clazz, (void *) methods, nMethods);

  4038 #endif /* USDT2 */

  4039   jint ret = 0;

  4040   DT_RETURN_MARK(RegisterNatives, jint, (const jint&)ret);

  4042   KlassHandle h_k(thread, java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz)));

  4044   for (int index = 0; index < nMethods; index++) {

  4045     const char* meth_name = methods[index].name;

  4046     const char* meth_sig = methods[index].signature;

  4047     int meth_name_len = (int)strlen(meth_name);

  4049     // The class should have been loaded (we have an instance of the class

  4050     // passed in) so the method and signature should already be in the symbol

  4051     // table.  If they're not there, the method doesn't exist.

  4052     TempNewSymbol  name = SymbolTable::probe(meth_name, meth_name_len);

  4053     TempNewSymbol  signature = SymbolTable::probe(meth_sig, (int)strlen(meth_sig));

  4055     if (name == NULL || signature == NULL) {

  4056       ResourceMark rm;

  4057       stringStream st;

  4058       st.print("Method %s.%s%s not found", Klass::cast(h_k())->external_name(), meth_name, meth_sig);

  4059       // Must return negative value on failure

  4060       THROW_MSG_(vmSymbols::java_lang_NoSuchMethodError(), st.as_string(), -1);

  4061     }

  4063     bool res = register_native(h_k, name, signature,

  4064                                (address) methods[index].fnPtr, THREAD);

  4065     if (!res) {

  4066       ret = -1;

  4067       break;

  4068     }

  4069   }

  4070   return ret;

  4071 JNI_END

  4074 JNI_ENTRY(jint, jni_UnregisterNatives(JNIEnv *env, jclass clazz))

  4075   JNIWrapper("UnregisterNatives");

  4076 #ifndef USDT2

  4077   DTRACE_PROBE2(hotspot_jni, UnregisterNatives__entry, env, clazz);

  4078 #else /* USDT2 */

  4079  HOTSPOT_JNI_UNREGISTERNATIVES_ENTRY(

  4080                                      env, clazz);

  4081 #endif /* USDT2 */

  4082   klassOop k   = java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(clazz));

  4083   //%note jni_2

  4084   if (Klass::cast(k)->oop_is_instance()) {

  4085     for (int index = 0; index < instanceKlass::cast(k)->methods()->length(); index++) {

  4086       methodOop m = methodOop(instanceKlass::cast(k)->methods()->obj_at(index));

  4087       if (m->is_native()) {

  4088         m->clear_native_function();

  4089         m->set_signature_handler(NULL);

  4090       }

  4091     }

  4092   }

  4093 #ifndef USDT2

  4094   DTRACE_PROBE1(hotspot_jni, UnregisterNatives__return, 0);

  4095 #else /* USDT2 */

  4096  HOTSPOT_JNI_UNREGISTERNATIVES_RETURN(

  4097                                       0);

  4098 #endif /* USDT2 */

  4099   return 0;

  4100 JNI_END

  4102 //

  4103 // Monitor functions

  4104 //

  4106 #ifndef USDT2

  4107 DT_RETURN_MARK_DECL(MonitorEnter, jint);

  4108 #else /* USDT2 */

  4109 DT_RETURN_MARK_DECL(MonitorEnter, jint

  4110                     , HOTSPOT_JNI_MONITORENTER_RETURN(_ret_ref));

  4111 #endif /* USDT2 */

  4113 JNI_ENTRY(jint, jni_MonitorEnter(JNIEnv *env, jobject jobj))

  4114 #ifndef USDT2

  4115   DTRACE_PROBE2(hotspot_jni, MonitorEnter__entry, env, jobj);

  4116 #else /* USDT2 */

  4117  HOTSPOT_JNI_MONITORENTER_ENTRY(

  4118                                 env, jobj);

  4119 #endif /* USDT2 */

  4120   jint ret = JNI_ERR;

  4121   DT_RETURN_MARK(MonitorEnter, jint, (const jint&)ret);

  4123   // If the object is null, we can't do anything with it

  4124   if (jobj == NULL) {

  4125     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4126   }

  4128   Handle obj(thread, JNIHandles::resolve_non_null(jobj));

  4129   ObjectSynchronizer::jni_enter(obj, CHECK_(JNI_ERR));

  4130   ret = JNI_OK;

  4131   return ret;

  4132 JNI_END

  4134 #ifndef USDT2

  4135 DT_RETURN_MARK_DECL(MonitorExit, jint);

  4136 #else /* USDT2 */

  4137 DT_RETURN_MARK_DECL(MonitorExit, jint

  4138                     , HOTSPOT_JNI_MONITOREXIT_RETURN(_ret_ref));

  4139 #endif /* USDT2 */

  4141 JNI_ENTRY(jint, jni_MonitorExit(JNIEnv *env, jobject jobj))

  4142 #ifndef USDT2

  4143   DTRACE_PROBE2(hotspot_jni, MonitorExit__entry, env, jobj);

  4144 #else /* USDT2 */

  4145  HOTSPOT_JNI_MONITOREXIT_ENTRY(

  4146                                env, jobj);

  4147 #endif /* USDT2 */

  4148   jint ret = JNI_ERR;

  4149   DT_RETURN_MARK(MonitorExit, jint, (const jint&)ret);

  4151   // Don't do anything with a null object

  4152   if (jobj == NULL) {

  4153     THROW_(vmSymbols::java_lang_NullPointerException(), JNI_ERR);

  4154   }

  4156   Handle obj(THREAD, JNIHandles::resolve_non_null(jobj));

  4157   ObjectSynchronizer::jni_exit(obj(), CHECK_(JNI_ERR));

  4159   ret = JNI_OK;

  4160   return ret;

  4161 JNI_END

  4163 //

  4164 // Extensions

  4165 //

  4167 #ifndef USDT2

  4168 DT_VOID_RETURN_MARK_DECL(GetStringRegion);

  4169 #else /* USDT2 */

  4170 DT_VOID_RETURN_MARK_DECL(GetStringRegion

  4171                          , HOTSPOT_JNI_GETSTRINGREGION_RETURN());

  4172 #endif /* USDT2 */

  4174 JNI_ENTRY(void, jni_GetStringRegion(JNIEnv *env, jstring string, jsize start, jsize len, jchar *buf))

  4175   JNIWrapper("GetStringRegion");

  4176 #ifndef USDT2

  4177   DTRACE_PROBE5(hotspot_jni, GetStringRegion__entry, env, string, start, len, buf);

  4178 #else /* USDT2 */

  4179  HOTSPOT_JNI_GETSTRINGREGION_ENTRY(

  4180                                    env, string, start, len, buf);

  4181 #endif /* USDT2 */

  4182   DT_VOID_RETURN_MARK(GetStringRegion);

  4183   oop s = JNIHandles::resolve_non_null(string);

  4184   int s_len = java_lang_String::length(s);

  4185   if (start < 0 || len < 0 || start + len > s_len) {

  4186     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4187   } else {

  4188     if (len > 0) {

  4189       int s_offset = java_lang_String::offset(s);

  4190       typeArrayOop s_value = java_lang_String::value(s);

  4191       memcpy(buf, s_value->char_at_addr(s_offset+start), sizeof(jchar)*len);

  4192     }

  4193   }

  4194 JNI_END

  4196 #ifndef USDT2

  4197 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion);

  4198 #else /* USDT2 */

  4199 DT_VOID_RETURN_MARK_DECL(GetStringUTFRegion

  4200                          , HOTSPOT_JNI_GETSTRINGUTFREGION_RETURN());

  4201 #endif /* USDT2 */

  4203 JNI_ENTRY(void, jni_GetStringUTFRegion(JNIEnv *env, jstring string, jsize start, jsize len, char *buf))

  4204   JNIWrapper("GetStringUTFRegion");

  4205 #ifndef USDT2

  4206   DTRACE_PROBE5(hotspot_jni, GetStringUTFRegion__entry, env, string, start, len, buf);

  4207 #else /* USDT2 */

  4208  HOTSPOT_JNI_GETSTRINGUTFREGION_ENTRY(

  4209                                       env, string, start, len, buf);

  4210 #endif /* USDT2 */

  4211   DT_VOID_RETURN_MARK(GetStringUTFRegion);

  4212   oop s = JNIHandles::resolve_non_null(string);

  4213   int s_len = java_lang_String::length(s);

  4214   if (start < 0 || len < 0 || start + len > s_len) {

  4215     THROW(vmSymbols::java_lang_StringIndexOutOfBoundsException());

  4216   } else {

  4217     //%note jni_7

  4218     if (len > 0) {

  4219       ResourceMark rm(THREAD);

  4220       char *utf_region = java_lang_String::as_utf8_string(s, start, len);

  4221       int utf_len = (int)strlen(utf_region);

  4222       memcpy(buf, utf_region, utf_len);

  4223       buf[utf_len] = 0;

  4224     } else {

  4225       // JDK null-terminates the buffer even in len is zero

  4226       if (buf != NULL) {

  4227         buf[0] = 0;

  4228       }

  4229     }

  4230   }

  4231 JNI_END

  4234 JNI_ENTRY(void*, jni_GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy))

  4235   JNIWrapper("GetPrimitiveArrayCritical");

  4236 #ifndef USDT2

  4237   DTRACE_PROBE3(hotspot_jni, GetPrimitiveArrayCritical__entry, env, array, isCopy);

  4238 #else /* USDT2 */

  4239  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_ENTRY(

  4240                                              env, array, (uintptr_t *) isCopy);

  4241 #endif /* USDT2 */

  4242   GC_locker::lock_critical(thread);

  4243   if (isCopy != NULL) {

  4244     *isCopy = JNI_FALSE;

  4245   }

  4246   oop a = JNIHandles::resolve_non_null(array);

  4247   assert(a->is_array(), "just checking");

  4248   BasicType type;

  4249   if (a->is_objArray()) {

  4250     type = T_OBJECT;

  4251   } else {

  4252     type = typeArrayKlass::cast(a->klass())->element_type();

  4253   }

  4254   void* ret = arrayOop(a)->base(type);

  4255 #ifndef USDT2

  4256   DTRACE_PROBE1(hotspot_jni, GetPrimitiveArrayCritical__return, ret);

  4257 #else /* USDT2 */

  4258  HOTSPOT_JNI_GETPRIMITIVEARRAYCRITICAL_RETURN(

  4259                                               ret);

  4260 #endif /* USDT2 */

  4261   return ret;

  4262 JNI_END

  4265 JNI_ENTRY(void, jni_ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray, jint mode))

  4266   JNIWrapper("ReleasePrimitiveArrayCritical");

  4267 #ifndef USDT2

  4268   DTRACE_PROBE4(hotspot_jni, ReleasePrimitiveArrayCritical__entry, env, array, carray, mode);

  4269 #else /* USDT2 */

  4270   HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_ENTRY(

  4271                                                   env, array, carray, mode);

  4272 #endif /* USDT2 */

  4273   // The array, carray and mode arguments are ignored

  4274   GC_locker::unlock_critical(thread);

  4275 #ifndef USDT2

  4276   DTRACE_PROBE(hotspot_jni, ReleasePrimitiveArrayCritical__return);

  4277 #else /* USDT2 */

  4278 HOTSPOT_JNI_RELEASEPRIMITIVEARRAYCRITICAL_RETURN(

  4279 );

  4280 #endif /* USDT2 */

  4281 JNI_END

  4284 JNI_ENTRY(const jchar*, jni_GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy))

  4285   JNIWrapper("GetStringCritical");

  4286 #ifndef USDT2

  4287   DTRACE_PROBE3(hotspot_jni, GetStringCritical__entry, env, string, isCopy);

  4288 #else /* USDT2 */

  4289   HOTSPOT_JNI_GETSTRINGCRITICAL_ENTRY(

  4290                                       env, string, (uintptr_t *) isCopy);

  4291 #endif /* USDT2 */

  4292   GC_locker::lock_critical(thread);

  4293   if (isCopy != NULL) {

  4294     *isCopy = JNI_FALSE;

  4295   }

  4296   oop s = JNIHandles::resolve_non_null(string);

  4297   int s_len = java_lang_String::length(s);

  4298   typeArrayOop s_value = java_lang_String::value(s);

  4299   int s_offset = java_lang_String::offset(s);

  4300   const jchar* ret;

  4301   if (s_len > 0) {

  4302     ret = s_value->char_at_addr(s_offset);

  4303   } else {

  4304     ret = (jchar*) s_value->base(T_CHAR);

  4305   }

  4306 #ifndef USDT2

  4307   DTRACE_PROBE1(hotspot_jni, GetStringCritical__return, ret);

  4308 #else /* USDT2 */

  4309  HOTSPOT_JNI_GETSTRINGCRITICAL_RETURN(

  4310                                       (uint16_t *) ret);

  4311 #endif /* USDT2 */

  4312   return ret;

  4313 JNI_END

  4316 JNI_ENTRY(void, jni_ReleaseStringCritical(JNIEnv *env, jstring str, const jchar *chars))

  4317   JNIWrapper("ReleaseStringCritical");

  4318 #ifndef USDT2

  4319   DTRACE_PROBE3(hotspot_jni, ReleaseStringCritical__entry, env, str, chars);

  4320 #else /* USDT2 */

  4321   HOTSPOT_JNI_RELEASESTRINGCRITICAL_ENTRY(

  4322                                           env, str, (uint16_t *) chars);

  4323 #endif /* USDT2 */

  4324   // The str and chars arguments are ignored

  4325   GC_locker::unlock_critical(thread);

  4326 #ifndef USDT2

  4327   DTRACE_PROBE(hotspot_jni, ReleaseStringCritical__return);

  4328 #else /* USDT2 */

  4329 HOTSPOT_JNI_RELEASESTRINGCRITICAL_RETURN(

  4330 );

  4331 #endif /* USDT2 */

  4332 JNI_END

  4335 JNI_ENTRY(jweak, jni_NewWeakGlobalRef(JNIEnv *env, jobject ref))

  4336   JNIWrapper("jni_NewWeakGlobalRef");

  4337 #ifndef USDT2

  4338   DTRACE_PROBE2(hotspot_jni, NewWeakGlobalRef__entry, env, ref);

  4339 #else /* USDT2 */

  4340  HOTSPOT_JNI_NEWWEAKGLOBALREF_ENTRY(

  4341                                     env, ref);

  4342 #endif /* USDT2 */

  4343   Handle ref_handle(thread, JNIHandles::resolve(ref));

  4344   jweak ret = JNIHandles::make_weak_global(ref_handle);

  4345 #ifndef USDT2

  4346   DTRACE_PROBE1(hotspot_jni, NewWeakGlobalRef__return, ret);

  4347 #else /* USDT2 */

  4348  HOTSPOT_JNI_NEWWEAKGLOBALREF_RETURN(

  4349                                      ret);

  4350 #endif /* USDT2 */

  4351   return ret;

  4352 JNI_END

  4354 // Must be JNI_ENTRY (with HandleMark)

  4355 JNI_ENTRY(void, jni_DeleteWeakGlobalRef(JNIEnv *env, jweak ref))

  4356   JNIWrapper("jni_DeleteWeakGlobalRef");

  4357 #ifndef USDT2

  4358   DTRACE_PROBE2(hotspot_jni, DeleteWeakGlobalRef__entry, env, ref);

  4359 #else /* USDT2 */

  4360   HOTSPOT_JNI_DELETEWEAKGLOBALREF_ENTRY(

  4361                                         env, ref);

  4362 #endif /* USDT2 */

  4363   JNIHandles::destroy_weak_global(ref);

  4364 #ifndef USDT2

  4365   DTRACE_PROBE(hotspot_jni, DeleteWeakGlobalRef__return);

  4366 #else /* USDT2 */

  4367   HOTSPOT_JNI_DELETEWEAKGLOBALREF_RETURN(

  4368                                          );

  4369 #endif /* USDT2 */

  4370 JNI_END

  4373 JNI_QUICK_ENTRY(jboolean, jni_ExceptionCheck(JNIEnv *env))

  4374   JNIWrapper("jni_ExceptionCheck");

  4375 #ifndef USDT2

  4376   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__entry, env);

  4377 #else /* USDT2 */

  4378  HOTSPOT_JNI_EXCEPTIONCHECK_ENTRY(

  4379                                   env);

  4380 #endif /* USDT2 */

  4381   jni_check_async_exceptions(thread);

  4382   jboolean ret = (thread->has_pending_exception()) ? JNI_TRUE : JNI_FALSE;

  4383 #ifndef USDT2

  4384   DTRACE_PROBE1(hotspot_jni, ExceptionCheck__return, ret);

  4385 #else /* USDT2 */

  4386  HOTSPOT_JNI_EXCEPTIONCHECK_RETURN(

  4387                                    ret);

  4388 #endif /* USDT2 */

  4389   return ret;

  4390 JNI_END

  4393 // Initialization state for three routines below relating to

  4394 // java.nio.DirectBuffers

  4395 static          jint directBufferSupportInitializeStarted = 0;

  4396 static volatile jint directBufferSupportInitializeEnded   = 0;

  4397 static volatile jint directBufferSupportInitializeFailed  = 0;

  4398 static jclass    bufferClass                 = NULL;

  4399 static jclass    directBufferClass           = NULL;

  4400 static jclass    directByteBufferClass       = NULL;

  4401 static jmethodID directByteBufferConstructor = NULL;

  4402 static jfieldID  directBufferAddressField    = NULL;

  4403 static jfieldID  bufferCapacityField         = NULL;

  4405 static jclass lookupOne(JNIEnv* env, const char* name, TRAPS) {

  4406   Handle loader;            // null (bootstrap) loader

  4407   Handle protection_domain; // null protection domain

  4409   TempNewSymbol sym = SymbolTable::new_symbol(name, CHECK_NULL);

  4410   jclass result =  find_class_from_class_loader(env, sym, true, loader, protection_domain, true, CHECK_NULL);

  4412   if (TraceClassResolution && result != NULL) {

  4413     trace_class_resolution(java_lang_Class::as_klassOop(JNIHandles::resolve_non_null(result)));

  4414   }

  4415   return result;

  4416 }

  4418 // These lookups are done with the NULL (bootstrap) ClassLoader to

  4419 // circumvent any security checks that would be done by jni_FindClass.

  4420 JNI_ENTRY(bool, lookupDirectBufferClasses(JNIEnv* env))

  4421 {

  4422   if ((bufferClass           = lookupOne(env, "java/nio/Buffer", thread))           == NULL) { return false; }

  4423   if ((directBufferClass     = lookupOne(env, "sun/nio/ch/DirectBuffer", thread))   == NULL) { return false; }

  4424   if ((directByteBufferClass = lookupOne(env, "java/nio/DirectByteBuffer", thread)) == NULL) { return false; }

  4425   return true;

  4426 }

  4427 JNI_END

  4430 static bool initializeDirectBufferSupport(JNIEnv* env, JavaThread* thread) {

  4431   if (directBufferSupportInitializeFailed) {

  4432     return false;

  4433   }

  4435   if (Atomic::cmpxchg(1, &directBufferSupportInitializeStarted, 0) == 0) {

  4436     if (!lookupDirectBufferClasses(env)) {

  4437       directBufferSupportInitializeFailed = 1;

  4438       return false;

  4439     }

  4441     // Make global references for these

  4442     bufferClass           = (jclass) env->NewGlobalRef(bufferClass);

  4443     directBufferClass     = (jclass) env->NewGlobalRef(directBufferClass);

  4444     directByteBufferClass = (jclass) env->NewGlobalRef(directByteBufferClass);

  4446     // Get needed field and method IDs

  4447     directByteBufferConstructor = env->GetMethodID(directByteBufferClass, "<init>", "(JI)V");

  4448     directBufferAddressField    = env->GetFieldID(bufferClass, "address", "J");

  4449     bufferCapacityField         = env->GetFieldID(bufferClass, "capacity", "I");

  4451     if ((directByteBufferConstructor == NULL) ||

  4452         (directBufferAddressField    == NULL) ||

  4453         (bufferCapacityField         == NULL)) {

  4454       directBufferSupportInitializeFailed = 1;

  4455       return false;

  4456     }

  4458     directBufferSupportInitializeEnded = 1;

  4459   } else {

  4460     while (!directBufferSupportInitializeEnded && !directBufferSupportInitializeFailed) {

  4461       // Set state as yield_all can call os:sleep. On Solaris, yield_all calls

  4462       // os::sleep which requires the VM state transition. On other platforms, it

  4463       // is not necessary. The following call to change the VM state is purposely

  4464       // put inside the loop to avoid potential deadlock when multiple threads

  4465       // try to call this method. See 6791815 for more details.

  4466       ThreadInVMfromNative tivn(thread);

  4467       os::yield_all();

  4468     }

  4469   }

  4471   return !directBufferSupportInitializeFailed;

  4472 }

  4474 extern "C" jobject JNICALL jni_NewDirectByteBuffer(JNIEnv *env, void* address, jlong capacity)

  4475 {

  4476   // thread_from_jni_environment() will block if VM is gone.

  4477   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4479   JNIWrapper("jni_NewDirectByteBuffer");

  4480 #ifndef USDT2

  4481   DTRACE_PROBE3(hotspot_jni, NewDirectByteBuffer__entry, env, address, capacity);

  4482 #else /* USDT2 */

  4483  HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_ENTRY(

  4484                                        env, address, capacity);

  4485 #endif /* USDT2 */

  4487   if (!directBufferSupportInitializeEnded) {

  4488     if (!initializeDirectBufferSupport(env, thread)) {

  4489 #ifndef USDT2

  4490       DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, NULL);

  4491 #else /* USDT2 */

  4492       HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4493                                              NULL);

  4494 #endif /* USDT2 */

  4495       return NULL;

  4496     }

  4497   }

  4499   // Being paranoid about accidental sign extension on address

  4500   jlong addr = (jlong) ((uintptr_t) address);

  4501   // NOTE that package-private DirectByteBuffer constructor currently

  4502   // takes int capacity

  4503   jint  cap  = (jint)  capacity;

  4504   jobject ret = env->NewObject(directByteBufferClass, directByteBufferConstructor, addr, cap);

  4505 #ifndef USDT2

  4506   DTRACE_PROBE1(hotspot_jni, NewDirectByteBuffer__return, ret);

  4507 #else /* USDT2 */

  4508   HOTSPOT_JNI_NEWDIRECTBYTEBUFFER_RETURN(

  4509                                          ret);

  4510 #endif /* USDT2 */

  4511   return ret;

  4512 }

  4514 #ifndef USDT2

  4515 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*);

  4516 #else /* USDT2 */

  4517 DT_RETURN_MARK_DECL(GetDirectBufferAddress, void*

  4518                     , HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_RETURN((void*) _ret_ref));

  4519 #endif /* USDT2 */

  4521 extern "C" void* JNICALL jni_GetDirectBufferAddress(JNIEnv *env, jobject buf)

  4522 {

  4523   // thread_from_jni_environment() will block if VM is gone.

  4524   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4526   JNIWrapper("jni_GetDirectBufferAddress");

  4527 #ifndef USDT2

  4528   DTRACE_PROBE2(hotspot_jni, GetDirectBufferAddress__entry, env, buf);

  4529 #else /* USDT2 */

  4530   HOTSPOT_JNI_GETDIRECTBUFFERADDRESS_ENTRY(

  4531                                            env, buf);

  4532 #endif /* USDT2 */

  4533   void* ret = NULL;

  4534   DT_RETURN_MARK(GetDirectBufferAddress, void*, (const void*&)ret);

  4536   if (!directBufferSupportInitializeEnded) {

  4537     if (!initializeDirectBufferSupport(env, thread)) {

  4538       return 0;

  4539     }

  4540   }

  4542   if ((buf != NULL) && (!env->IsInstanceOf(buf, directBufferClass))) {

  4543     return 0;

  4544   }

  4546   ret = (void*)(intptr_t)env->GetLongField(buf, directBufferAddressField);

  4547   return ret;

  4548 }

  4550 #ifndef USDT2

  4551 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong);

  4552 #else /* USDT2 */

  4553 DT_RETURN_MARK_DECL(GetDirectBufferCapacity, jlong

  4554                     , HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_RETURN(_ret_ref));

  4555 #endif /* USDT2 */

  4557 extern "C" jlong JNICALL jni_GetDirectBufferCapacity(JNIEnv *env, jobject buf)

  4558 {

  4559   // thread_from_jni_environment() will block if VM is gone.

  4560   JavaThread* thread = JavaThread::thread_from_jni_environment(env);

  4562   JNIWrapper("jni_GetDirectBufferCapacity");

  4563 #ifndef USDT2

  4564   DTRACE_PROBE2(hotspot_jni, GetDirectBufferCapacity__entry, env, buf);

  4565 #else /* USDT2 */

  4566   HOTSPOT_JNI_GETDIRECTBUFFERCAPACITY_ENTRY(

  4567                                             env, buf);

  4568 #endif /* USDT2 */

  4569   jlong ret = -1;

  4570   DT_RETURN_MARK(GetDirectBufferCapacity, jlong, (const jlong&)ret);

  4572   if (!directBufferSupportInitializeEnded) {

  4573     if (!initializeDirectBufferSupport(env, thread)) {

  4574       ret = 0;

  4575       return ret;

  4576     }

  4577   }

  4579   if (buf == NULL) {

  4580     return -1;

  4581   }

  4583   if (!env->IsInstanceOf(buf, directBufferClass)) {

  4584     return -1;

  4585   }

  4587   // NOTE that capacity is currently an int in the implementation

  4588   ret = env->GetIntField(buf, bufferCapacityField);

  4589   return ret;

  4590 }

  4593 JNI_LEAF(jint, jni_GetVersion(JNIEnv *env))

  4594   JNIWrapper("GetVersion");

  4595 #ifndef USDT2

  4596   DTRACE_PROBE1(hotspot_jni, GetVersion__entry, env);

  4597 #else /* USDT2 */

  4598   HOTSPOT_JNI_GETVERSION_ENTRY(

  4599                                env);

  4600 #endif /* USDT2 */

  4601 #ifndef USDT2

  4602   DTRACE_PROBE1(hotspot_jni, GetVersion__return, CurrentVersion);

  4603 #else /* USDT2 */

  4604   HOTSPOT_JNI_GETVERSION_RETURN(

  4605                                 CurrentVersion);

  4606 #endif /* USDT2 */

  4607   return CurrentVersion;

  4608 JNI_END

  4610 extern struct JavaVM_ main_vm;

  4612 JNI_LEAF(jint, jni_GetJavaVM(JNIEnv *env, JavaVM **vm))

  4613   JNIWrapper("jni_GetJavaVM");

  4614 #ifndef USDT2

  4615   DTRACE_PROBE2(hotspot_jni, GetJavaVM__entry, env, vm);

  4616 #else /* USDT2 */

  4617   HOTSPOT_JNI_GETJAVAVM_ENTRY(

  4618                               env, (void **) vm);

  4619 #endif /* USDT2 */

  4620   *vm  = (JavaVM *)(&main_vm);

  4621 #ifndef USDT2

  4622   DTRACE_PROBE1(hotspot_jni, GetJavaVM__return, JNI_OK);

  4623 #else /* USDT2 */

  4624   HOTSPOT_JNI_GETJAVAVM_RETURN(

  4625                                JNI_OK);

  4626 #endif /* USDT2 */

  4627   return JNI_OK;

  4628 JNI_END

  4630 // Structure containing all jni functions

  4631 struct JNINativeInterface_ jni_NativeInterface = {

  4632     NULL,

  4633     NULL,

  4634     NULL,

  4636     NULL,

  4638     jni_GetVersion,

  4640     jni_DefineClass,

  4641     jni_FindClass,

  4643     jni_FromReflectedMethod,

  4644     jni_FromReflectedField,

  4646     jni_ToReflectedMethod,

  4648     jni_GetSuperclass,

  4649     jni_IsAssignableFrom,

  4651     jni_ToReflectedField,

  4653     jni_Throw,

  4654     jni_ThrowNew,

  4655     jni_ExceptionOccurred,

  4656     jni_ExceptionDescribe,

  4657     jni_ExceptionClear,

  4658     jni_FatalError,

  4660     jni_PushLocalFrame,

  4661     jni_PopLocalFrame,

  4663     jni_NewGlobalRef,

  4664     jni_DeleteGlobalRef,

  4665     jni_DeleteLocalRef,

  4666     jni_IsSameObject,

  4668     jni_NewLocalRef,

  4669     jni_EnsureLocalCapacity,

  4671     jni_AllocObject,

  4672     jni_NewObject,

  4673     jni_NewObjectV,

  4674     jni_NewObjectA,

  4676     jni_GetObjectClass,

  4677     jni_IsInstanceOf,

  4679     jni_GetMethodID,

  4681     jni_CallObjectMethod,

  4682     jni_CallObjectMethodV,

  4683     jni_CallObjectMethodA,

  4684     jni_CallBooleanMethod,

  4685     jni_CallBooleanMethodV,

  4686     jni_CallBooleanMethodA,

  4687     jni_CallByteMethod,

  4688     jni_CallByteMethodV,

  4689     jni_CallByteMethodA,

  4690     jni_CallCharMethod,

  4691     jni_CallCharMethodV,

  4692     jni_CallCharMethodA,

  4693     jni_CallShortMethod,

  4694     jni_CallShortMethodV,

  4695     jni_CallShortMethodA,

  4696     jni_CallIntMethod,

  4697     jni_CallIntMethodV,

  4698     jni_CallIntMethodA,

  4699     jni_CallLongMethod,

  4700     jni_CallLongMethodV,

  4701     jni_CallLongMethodA,

  4702     jni_CallFloatMethod,

  4703     jni_CallFloatMethodV,

  4704     jni_CallFloatMethodA,

  4705     jni_CallDoubleMethod,

  4706     jni_CallDoubleMethodV,

  4707     jni_CallDoubleMethodA,

  4708     jni_CallVoidMethod,

  4709     jni_CallVoidMethodV,

  4710     jni_CallVoidMethodA,

  4712     jni_CallNonvirtualObjectMethod,

  4713     jni_CallNonvirtualObjectMethodV,

  4714     jni_CallNonvirtualObjectMethodA,

  4715     jni_CallNonvirtualBooleanMethod,

  4716     jni_CallNonvirtualBooleanMethodV,

  4717     jni_CallNonvirtualBooleanMethodA,

  4718     jni_CallNonvirtualByteMethod,

  4719     jni_CallNonvirtualByteMethodV,

  4720     jni_CallNonvirtualByteMethodA,

  4721     jni_CallNonvirtualCharMethod,

  4722     jni_CallNonvirtualCharMethodV,

  4723     jni_CallNonvirtualCharMethodA,

  4724     jni_CallNonvirtualShortMethod,

  4725     jni_CallNonvirtualShortMethodV,

  4726     jni_CallNonvirtualShortMethodA,

  4727     jni_CallNonvirtualIntMethod,

  4728     jni_CallNonvirtualIntMethodV,

  4729     jni_CallNonvirtualIntMethodA,

  4730     jni_CallNonvirtualLongMethod,

  4731     jni_CallNonvirtualLongMethodV,

  4732     jni_CallNonvirtualLongMethodA,

  4733     jni_CallNonvirtualFloatMethod,

  4734     jni_CallNonvirtualFloatMethodV,

  4735     jni_CallNonvirtualFloatMethodA,

  4736     jni_CallNonvirtualDoubleMethod,

  4737     jni_CallNonvirtualDoubleMethodV,

  4738     jni_CallNonvirtualDoubleMethodA,

  4739     jni_CallNonvirtualVoidMethod,

  4740     jni_CallNonvirtualVoidMethodV,

  4741     jni_CallNonvirtualVoidMethodA,

  4743     jni_GetFieldID,

  4745     jni_GetObjectField,

  4746     jni_GetBooleanField,

  4747     jni_GetByteField,

  4748     jni_GetCharField,

  4749     jni_GetShortField,

  4750     jni_GetIntField,

  4751     jni_GetLongField,

  4752     jni_GetFloatField,

  4753     jni_GetDoubleField,

  4755     jni_SetObjectField,

  4756     jni_SetBooleanField,

  4757     jni_SetByteField,

  4758     jni_SetCharField,

  4759     jni_SetShortField,

  4760     jni_SetIntField,

  4761     jni_SetLongField,

  4762     jni_SetFloatField,

  4763     jni_SetDoubleField,

  4765     jni_GetStaticMethodID,

  4767     jni_CallStaticObjectMethod,

  4768     jni_CallStaticObjectMethodV,

  4769     jni_CallStaticObjectMethodA,

  4770     jni_CallStaticBooleanMethod,

  4771     jni_CallStaticBooleanMethodV,

  4772     jni_CallStaticBooleanMethodA,

  4773     jni_CallStaticByteMethod,

  4774     jni_CallStaticByteMethodV,

  4775     jni_CallStaticByteMethodA,

  4776     jni_CallStaticCharMethod,

  4777     jni_CallStaticCharMethodV,

  4778     jni_CallStaticCharMethodA,

  4779     jni_CallStaticShortMethod,

  4780     jni_CallStaticShortMethodV,

  4781     jni_CallStaticShortMethodA,

  4782     jni_CallStaticIntMethod,

  4783     jni_CallStaticIntMethodV,

  4784     jni_CallStaticIntMethodA,

  4785     jni_CallStaticLongMethod,

  4786     jni_CallStaticLongMethodV,

  4787     jni_CallStaticLongMethodA,

  4788     jni_CallStaticFloatMethod,

  4789     jni_CallStaticFloatMethodV,

  4790     jni_CallStaticFloatMethodA,

  4791     jni_CallStaticDoubleMethod,

  4792     jni_CallStaticDoubleMethodV,

  4793     jni_CallStaticDoubleMethodA,

  4794     jni_CallStaticVoidMethod,

  4795     jni_CallStaticVoidMethodV,

  4796     jni_CallStaticVoidMethodA,

  4798     jni_GetStaticFieldID,

  4800     jni_GetStaticObjectField,

  4801     jni_GetStaticBooleanField,

  4802     jni_GetStaticByteField,

  4803     jni_GetStaticCharField,

  4804     jni_GetStaticShortField,

  4805     jni_GetStaticIntField,

  4806     jni_GetStaticLongField,

  4807     jni_GetStaticFloatField,

  4808     jni_GetStaticDoubleField,

  4810     jni_SetStaticObjectField,

  4811     jni_SetStaticBooleanField,

  4812     jni_SetStaticByteField,

  4813     jni_SetStaticCharField,

  4814     jni_SetStaticShortField,

  4815     jni_SetStaticIntField,

  4816     jni_SetStaticLongField,

  4817     jni_SetStaticFloatField,

  4818     jni_SetStaticDoubleField,

  4820     jni_NewString,

  4821     jni_GetStringLength,

  4822     jni_GetStringChars,

  4823     jni_ReleaseStringChars,

  4825     jni_NewStringUTF,

  4826     jni_GetStringUTFLength,

  4827     jni_GetStringUTFChars,

  4828     jni_ReleaseStringUTFChars,

  4830     jni_GetArrayLength,

  4832     jni_NewObjectArray,

  4833     jni_GetObjectArrayElement,

  4834     jni_SetObjectArrayElement,

  4836     jni_NewBooleanArray,

  4837     jni_NewByteArray,

  4838     jni_NewCharArray,

  4839     jni_NewShortArray,

  4840     jni_NewIntArray,

  4841     jni_NewLongArray,

  4842     jni_NewFloatArray,

  4843     jni_NewDoubleArray,

  4845     jni_GetBooleanArrayElements,

  4846     jni_GetByteArrayElements,

  4847     jni_GetCharArrayElements,

  4848     jni_GetShortArrayElements,

  4849     jni_GetIntArrayElements,

  4850     jni_GetLongArrayElements,

  4851     jni_GetFloatArrayElements,

  4852     jni_GetDoubleArrayElements,

  4854     jni_ReleaseBooleanArrayElements,

  4855     jni_ReleaseByteArrayElements,

  4856     jni_ReleaseCharArrayElements,

  4857     jni_ReleaseShortArrayElements,

  4858     jni_ReleaseIntArrayElements,

  4859     jni_ReleaseLongArrayElements,

  4860     jni_ReleaseFloatArrayElements,

  4861     jni_ReleaseDoubleArrayElements,

  4863     jni_GetBooleanArrayRegion,

  4864     jni_GetByteArrayRegion,

  4865     jni_GetCharArrayRegion,

  4866     jni_GetShortArrayRegion,

  4867     jni_GetIntArrayRegion,

  4868     jni_GetLongArrayRegion,

  4869     jni_GetFloatArrayRegion,

  4870     jni_GetDoubleArrayRegion,

  4872     jni_SetBooleanArrayRegion,

  4873     jni_SetByteArrayRegion,

  4874     jni_SetCharArrayRegion,

  4875     jni_SetShortArrayRegion,

  4876     jni_SetIntArrayRegion,

  4877     jni_SetLongArrayRegion,

  4878     jni_SetFloatArrayRegion,

  4879     jni_SetDoubleArrayRegion,

  4881     jni_RegisterNatives,

  4882     jni_UnregisterNatives,

  4884     jni_MonitorEnter,

  4885     jni_MonitorExit,

  4887     jni_GetJavaVM,

  4889     jni_GetStringRegion,

  4890     jni_GetStringUTFRegion,

  4892     jni_GetPrimitiveArrayCritical,

  4893     jni_ReleasePrimitiveArrayCritical,

  4895     jni_GetStringCritical,

  4896     jni_ReleaseStringCritical,

  4898     jni_NewWeakGlobalRef,

  4899     jni_DeleteWeakGlobalRef,

  4901     jni_ExceptionCheck,

  4903     jni_NewDirectByteBuffer,

  4904     jni_GetDirectBufferAddress,

  4905     jni_GetDirectBufferCapacity,

  4907     // New 1_6 features

  4909     jni_GetObjectRefType

  4910 };

  4913 // For jvmti use to modify jni function table.

  4914 // Java threads in native contiues to run until it is transitioned

  4915 // to VM at safepoint. Before the transition or before it is blocked

  4916 // for safepoint it may access jni function table. VM could crash if

  4917 // any java thread access the jni function table in the middle of memcpy.

  4918 // To avoid this each function pointers are copied automically.

  4919 void copy_jni_function_table(const struct JNINativeInterface_ *new_jni_NativeInterface) {

  4920   assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");

  4921   intptr_t *a = (intptr_t *) jni_functions();

  4922   intptr_t *b = (intptr_t *) new_jni_NativeInterface;

  4923   for (uint i=0; i <  sizeof(struct JNINativeInterface_)/sizeof(void *); i++) {

  4924     Atomic::store_ptr(*b++, a++);

  4925   }

  4926 }

  4928 void quicken_jni_functions() {

  4929   // Replace Get<Primitive>Field with fast versions

  4930   if (UseFastJNIAccessors && !JvmtiExport::can_post_field_access()

  4931       && !VerifyJNIFields && !TraceJNICalls && !CountJNICalls && !CheckJNICalls

  4932 #if defined(_WINDOWS) && defined(IA32) && defined(COMPILER2)

  4933       // windows x86 currently needs SEH wrapper and the gain of the fast

  4934       // versions currently isn't certain for server vm on uniprocessor.

  4935       && os::is_MP()

  4936 #endif

  4937   ) {

  4938     address func;

  4939     func = JNI_FastGetField::generate_fast_get_boolean_field();

  4940     if (func != (address)-1) {

  4941       jni_NativeInterface.GetBooleanField = (GetBooleanField_t)func;

  4942     }

  4943     func = JNI_FastGetField::generate_fast_get_byte_field();

  4944     if (func != (address)-1) {

  4945       jni_NativeInterface.GetByteField = (GetByteField_t)func;

  4946     }

  4947     func = JNI_FastGetField::generate_fast_get_char_field();

  4948     if (func != (address)-1) {

  4949       jni_NativeInterface.GetCharField = (GetCharField_t)func;

  4950     }

  4951     func = JNI_FastGetField::generate_fast_get_short_field();

  4952     if (func != (address)-1) {

  4953       jni_NativeInterface.GetShortField = (GetShortField_t)func;

  4954     }

  4955     func = JNI_FastGetField::generate_fast_get_int_field();

  4956     if (func != (address)-1) {

  4957       jni_NativeInterface.GetIntField = (GetIntField_t)func;

  4958     }

  4959     func = JNI_FastGetField::generate_fast_get_long_field();

  4960     if (func != (address)-1) {

  4961       jni_NativeInterface.GetLongField = (GetLongField_t)func;

  4962     }

  4963     func = JNI_FastGetField::generate_fast_get_float_field();

  4964     if (func != (address)-1) {

  4965       jni_NativeInterface.GetFloatField = (GetFloatField_t)func;

  4966     }

  4967     func = JNI_FastGetField::generate_fast_get_double_field();

  4968     if (func != (address)-1) {

  4969       jni_NativeInterface.GetDoubleField = (GetDoubleField_t)func;

  4970     }

  4971   }

  4972 }

  4974 // Returns the function structure

  4975 struct JNINativeInterface_* jni_functions() {

  4976 #ifndef JNICHECK_KERNEL

  4977   if (CheckJNICalls) return jni_functions_check();

  4978 #else  // JNICHECK_KERNEL

  4979   if (CheckJNICalls) warning("-Xcheck:jni is not supported in kernel vm.");

  4980 #endif // JNICHECK_KERNEL

  4981   return &jni_NativeInterface;

  4982 }

  4984 // Returns the function structure

  4985 struct JNINativeInterface_* jni_functions_nocheck() {

  4986   return &jni_NativeInterface;

  4987 }

  4990 // Invocation API

  4993 // Forward declaration

  4994 extern const struct JNIInvokeInterface_ jni_InvokeInterface;

  4996 // Global invocation API vars

  4997 volatile jint vm_created = 0;

  4998 // Indicate whether it is safe to recreate VM

  4999 volatile jint safe_to_recreate_vm = 1;

  5000 struct JavaVM_ main_vm = {&jni_InvokeInterface};

  5003 #define JAVASTACKSIZE (400 * 1024)    /* Default size of a thread java stack */

  5004 enum { VERIFY_NONE, VERIFY_REMOTE, VERIFY_ALL };

  5006 #ifndef USDT2

  5007 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, void*);

  5008 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint);

  5009 #else /* USDT2 */

  5010 DT_RETURN_MARK_DECL(GetDefaultJavaVMInitArgs, jint

  5011                     , HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_RETURN(_ret_ref));

  5012 #endif /* USDT2 */

  5014 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetDefaultJavaVMInitArgs(void *args_) {

  5015 #ifndef USDT2

  5016   HS_DTRACE_PROBE1(hotspot_jni, GetDefaultJavaVMInitArgs__entry, args_);

  5017 #else /* USDT2 */

  5018   HOTSPOT_JNI_GETDEFAULTJAVAVMINITARGS_ENTRY(

  5019                                              args_);

  5020 #endif /* USDT2 */

  5021   JDK1_1InitArgs *args = (JDK1_1InitArgs *)args_;

  5022   jint ret = JNI_ERR;

  5023   DT_RETURN_MARK(GetDefaultJavaVMInitArgs, jint, (const jint&)ret);

  5025   if (Threads::is_supported_jni_version(args->version)) {

  5026     ret = JNI_OK;

  5027   }

  5028   // 1.1 style no longer supported in hotspot.

  5029   // According the JNI spec, we should update args->version on return.

  5030   // We also use the structure to communicate with launcher about default

  5031   // stack size.

  5032   if (args->version == JNI_VERSION_1_1) {

  5033     args->version = JNI_VERSION_1_2;

  5034     // javaStackSize is int in arguments structure

  5035     assert(jlong(ThreadStackSize) * K < INT_MAX, "integer overflow");

  5036     args->javaStackSize = (jint)(ThreadStackSize * K);

  5037   }

  5038   return ret;

  5039 }

  5041 #ifndef PRODUCT

  5043 #include "gc_interface/collectedHeap.hpp"

  5044 #include "utilities/quickSort.hpp"

  5046 #define run_unit_test(unit_test_function_call)              \

  5047   tty->print_cr("Running test: " #unit_test_function_call); \

  5048   unit_test_function_call

  5050 void execute_internal_vm_tests() {

  5051   if (ExecuteInternalVMTests) {

  5052     tty->print_cr("Running internal VM tests");

  5053     run_unit_test(arrayOopDesc::test_max_array_length());

  5054     run_unit_test(CollectedHeap::test_is_in());

  5055     run_unit_test(QuickSort::test_quick_sort());

  5056     tty->print_cr("All internal VM tests passed");

  5057   }

  5058 }

  5060 #undef run_unit_test

  5062 #endif

  5064 #ifndef USDT2

  5065 HS_DTRACE_PROBE_DECL3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5066 DT_RETURN_MARK_DECL(CreateJavaVM, jint);

  5067 #else /* USDT2 */

  5068 DT_RETURN_MARK_DECL(CreateJavaVM, jint

  5069                     , HOTSPOT_JNI_CREATEJAVAVM_RETURN(_ret_ref));

  5070 #endif /* USDT2 */

  5072 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_CreateJavaVM(JavaVM **vm, void **penv, void *args) {

  5073 #ifndef USDT2

  5074   HS_DTRACE_PROBE3(hotspot_jni, CreateJavaVM__entry, vm, penv, args);

  5075 #else /* USDT2 */

  5076   HOTSPOT_JNI_CREATEJAVAVM_ENTRY(

  5077                                  (void **) vm, penv, args);

  5078 #endif /* USDT2 */

  5080   jint result = JNI_ERR;

  5081   DT_RETURN_MARK(CreateJavaVM, jint, (const jint&)result);

  5083   // We're about to use Atomic::xchg for synchronization.  Some Zero

  5084   // platforms use the GCC builtin __sync_lock_test_and_set for this,

  5085   // but __sync_lock_test_and_set is not guaranteed to do what we want

  5086   // on all architectures.  So we check it works before relying on it.

  5087 #if defined(ZERO) && defined(ASSERT)

  5088   {

  5089     jint a = 0xcafebabe;

  5090     jint b = Atomic::xchg(0xdeadbeef, &a);

  5091     void *c = &a;

  5092     void *d = Atomic::xchg_ptr(&b, &c);

  5093     assert(a == (jint) 0xdeadbeef && b == (jint) 0xcafebabe, "Atomic::xchg() works");

  5094     assert(c == &b && d == &a, "Atomic::xchg_ptr() works");

  5095   }

  5096 #endif // ZERO && ASSERT

  5098   // At the moment it's only possible to have one Java VM,

  5099   // since some of the runtime state is in global variables.

  5101   // We cannot use our mutex locks here, since they only work on

  5102   // Threads. We do an atomic compare and exchange to ensure only

  5103   // one thread can call this method at a time

  5105   // We use Atomic::xchg rather than Atomic::add/dec since on some platforms

  5106   // the add/dec implementations are dependent on whether we are running

  5107   // on a multiprocessor, and at this stage of initialization the os::is_MP

  5108   // function used to determine this will always return false. Atomic::xchg

  5109   // does not have this problem.

  5110   if (Atomic::xchg(1, &vm_created) == 1) {

  5111     return JNI_ERR;   // already created, or create attempt in progress

  5112   }

  5113   if (Atomic::xchg(0, &safe_to_recreate_vm) == 0) {

  5114     return JNI_ERR;  // someone tried and failed and retry not allowed.

  5115   }

  5117   assert(vm_created == 1, "vm_created is true during the creation");

  5119   /**

  5120    * Certain errors during initialization are recoverable and do not

  5121    * prevent this method from being called again at a later time

  5122    * (perhaps with different arguments).  However, at a certain

  5123    * point during initialization if an error occurs we cannot allow

  5124    * this function to be called again (or it will crash).  In those

  5125    * situations, the 'canTryAgain' flag is set to false, which atomically

  5126    * sets safe_to_recreate_vm to 1, such that any new call to

  5127    * JNI_CreateJavaVM will immediately fail using the above logic.

  5128    */

  5129   bool can_try_again = true;

  5131   result = Threads::create_vm((JavaVMInitArgs*) args, &can_try_again);

  5132   if (result == JNI_OK) {

  5133     JavaThread *thread = JavaThread::current();

  5134     /* thread is thread_in_vm here */

  5135     *vm = (JavaVM *)(&main_vm);

  5136     *(JNIEnv**)penv = thread->jni_environment();

  5138     // Tracks the time application was running before GC

  5139     RuntimeService::record_application_start();

  5141     // Notify JVMTI

  5142     if (JvmtiExport::should_post_thread_life()) {

  5143        JvmtiExport::post_thread_start(thread);

  5144     }

  5146     EVENT_BEGIN(TraceEventThreadStart, event);

  5147     EVENT_COMMIT(event,

  5148         EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5150     // Check if we should compile all classes on bootclasspath

  5151     NOT_PRODUCT(if (CompileTheWorld) ClassLoader::compile_the_world();)

  5152     // Since this is not a JVM_ENTRY we have to set the thread state manually before leaving.

  5153     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5154   } else {

  5155     if (can_try_again) {

  5156       // reset safe_to_recreate_vm to 1 so that retrial would be possible

  5157       safe_to_recreate_vm = 1;

  5158     }

  5160     // Creation failed. We must reset vm_created

  5161     *vm = 0;

  5162     *(JNIEnv**)penv = 0;

  5163     // reset vm_created last to avoid race condition. Use OrderAccess to

  5164     // control both compiler and architectural-based reordering.

  5165     OrderAccess::release_store(&vm_created, 0);

  5166   }

  5168   NOT_PRODUCT(test_error_handler(ErrorHandlerTest));

  5169   NOT_PRODUCT(execute_internal_vm_tests());

  5170   return result;

  5171 }

  5173 #ifndef USDT2

  5174 HS_DTRACE_PROBE_DECL3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5175   JavaVM**, jsize, jsize*);

  5176 HS_DTRACE_PROBE_DECL1(hotspot_jni, GetCreatedJavaVMs__return, jint);

  5177 #endif /* !USDT2 */

  5179 _JNI_IMPORT_OR_EXPORT_ jint JNICALL JNI_GetCreatedJavaVMs(JavaVM **vm_buf, jsize bufLen, jsize *numVMs) {

  5180   // See bug 4367188, the wrapper can sometimes cause VM crashes

  5181   // JNIWrapper("GetCreatedJavaVMs");

  5182 #ifndef USDT2

  5183   HS_DTRACE_PROBE3(hotspot_jni, GetCreatedJavaVMs__entry, \

  5184     vm_buf, bufLen, numVMs);

  5185 #else /* USDT2 */

  5186   HOTSPOT_JNI_GETCREATEDJAVAVMS_ENTRY(

  5187                                       (void **) vm_buf, bufLen, (uintptr_t *) numVMs);

  5188 #endif /* USDT2 */

  5189   if (vm_created) {

  5190     if (numVMs != NULL) *numVMs = 1;

  5191     if (bufLen > 0)     *vm_buf = (JavaVM *)(&main_vm);

  5192   } else {

  5193     if (numVMs != NULL) *numVMs = 0;

  5194   }

  5195 #ifndef USDT2

  5196   HS_DTRACE_PROBE1(hotspot_jni, GetCreatedJavaVMs__return, JNI_OK);

  5197 #else /* USDT2 */

  5198   HOTSPOT_JNI_GETCREATEDJAVAVMS_RETURN(

  5199                                     JNI_OK);

  5200 #endif /* USDT2 */

  5201   return JNI_OK;

  5202 }

  5204 extern "C" {

  5206 #ifndef USDT2

  5207 DT_RETURN_MARK_DECL(DestroyJavaVM, jint);

  5208 #else /* USDT2 */

  5209 DT_RETURN_MARK_DECL(DestroyJavaVM, jint

  5210                     , HOTSPOT_JNI_DESTROYJAVAVM_RETURN(_ret_ref));

  5211 #endif /* USDT2 */

  5213 jint JNICALL jni_DestroyJavaVM(JavaVM *vm) {

  5214 #ifndef USDT2

  5215   DTRACE_PROBE1(hotspot_jni, DestroyJavaVM__entry, vm);

  5216 #else /* USDT2 */

  5217   HOTSPOT_JNI_DESTROYJAVAVM_ENTRY(

  5218                                   vm);

  5219 #endif /* USDT2 */

  5220   jint res = JNI_ERR;

  5221   DT_RETURN_MARK(DestroyJavaVM, jint, (const jint&)res);

  5223   if (!vm_created) {

  5224     res = JNI_ERR;

  5225     return res;

  5226   }

  5228   JNIWrapper("DestroyJavaVM");

  5229   JNIEnv *env;

  5230   JavaVMAttachArgs destroyargs;

  5231   destroyargs.version = CurrentVersion;

  5232   destroyargs.name = (char *)"DestroyJavaVM";

  5233   destroyargs.group = NULL;

  5234   res = vm->AttachCurrentThread((void **)&env, (void *)&destroyargs);

  5235   if (res != JNI_OK) {

  5236     return res;

  5237   }

  5239   // Since this is not a JVM_ENTRY we have to set the thread state manually before entering.

  5240   JavaThread* thread = JavaThread::current();

  5241   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5242   if (Threads::destroy_vm()) {

  5243     // Should not change thread state, VM is gone

  5244     vm_created = false;

  5245     res = JNI_OK;

  5246     return res;

  5247   } else {

  5248     ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5249     res = JNI_ERR;

  5250     return res;

  5251   }

  5252 }

  5255 static jint attach_current_thread(JavaVM *vm, void **penv, void *_args, bool daemon) {

  5256   JavaVMAttachArgs *args = (JavaVMAttachArgs *) _args;

  5258   // Check below commented out from JDK1.2fcs as well

  5259   /*

  5260   if (args && (args->version != JNI_VERSION_1_1 || args->version != JNI_VERSION_1_2)) {

  5261     return JNI_EVERSION;

  5262   }

  5263   */

  5265   Thread* t = ThreadLocalStorage::get_thread_slow();

  5266   if (t != NULL) {

  5267     // If the thread has been attached this operation is a no-op

  5268     *(JNIEnv**)penv = ((JavaThread*) t)->jni_environment();

  5269     return JNI_OK;

  5270   }

  5272   // Create a thread and mark it as attaching so it will be skipped by the

  5273   // ThreadsListEnumerator - see CR 6404306

  5274   JavaThread* thread = new JavaThread(true);

  5276   // Set correct safepoint info. The thread is going to call into Java when

  5277   // initializing the Java level thread object. Hence, the correct state must

  5278   // be set in order for the Safepoint code to deal with it correctly.

  5279   thread->set_thread_state(_thread_in_vm);

  5280   // Must do this before initialize_thread_local_storage

  5281   thread->record_stack_base_and_size();

  5283   thread->initialize_thread_local_storage();

  5285   if (!os::create_attached_thread(thread)) {

  5286     delete thread;

  5287     return JNI_ERR;

  5288   }

  5289   // Enable stack overflow checks

  5290   thread->create_stack_guard_pages();

  5292   thread->initialize_tlab();

  5294   thread->cache_global_variables();

  5296   // Crucial that we do not have a safepoint check for this thread, since it has

  5297   // not been added to the Thread list yet.

  5298   { Threads_lock->lock_without_safepoint_check();

  5299     // This must be inside this lock in order to get FullGCALot to work properly, i.e., to

  5300     // avoid this thread trying to do a GC before it is added to the thread-list

  5301     thread->set_active_handles(JNIHandleBlock::allocate_block());

  5302     Threads::add(thread, daemon);

  5303     Threads_lock->unlock();

  5304   }

  5305   // Create thread group and name info from attach arguments

  5306   oop group = NULL;

  5307   char* thread_name = NULL;

  5308   if (args != NULL && Threads::is_supported_jni_version(args->version)) {

  5309     group = JNIHandles::resolve(args->group);

  5310     thread_name = args->name; // may be NULL

  5311   }

  5312   if (group == NULL) group = Universe::main_thread_group();

  5314   // Create Java level thread object and attach it to this thread

  5315   bool attach_failed = false;

  5316   {

  5317     EXCEPTION_MARK;

  5318     HandleMark hm(THREAD);

  5319     Handle thread_group(THREAD, group);

  5320     thread->allocate_threadObj(thread_group, thread_name, daemon, THREAD);

  5321     if (HAS_PENDING_EXCEPTION) {

  5322       CLEAR_PENDING_EXCEPTION;

  5323       // cleanup outside the handle mark.

  5324       attach_failed = true;

  5325     }

  5326   }

  5328   if (attach_failed) {

  5329     // Added missing cleanup

  5330     thread->cleanup_failed_attach_current_thread();

  5331     return JNI_ERR;

  5332   }

  5334   // mark the thread as no longer attaching

  5335   // this uses a fence to push the change through so we don't have

  5336   // to regrab the threads_lock

  5337   thread->set_done_attaching_via_jni();

  5339   // Set java thread status.

  5340   java_lang_Thread::set_thread_status(thread->threadObj(),

  5341               java_lang_Thread::RUNNABLE);

  5343   // Notify the debugger

  5344   if (JvmtiExport::should_post_thread_life()) {

  5345     JvmtiExport::post_thread_start(thread);

  5346   }

  5348   EVENT_BEGIN(TraceEventThreadStart, event);

  5349   EVENT_COMMIT(event,

  5350       EVENT_SET(event, javalangthread, java_lang_Thread::thread_id(thread->threadObj())));

  5352   *(JNIEnv**)penv = thread->jni_environment();

  5354   // Now leaving the VM, so change thread_state. This is normally automatically taken care

  5355   // of in the JVM_ENTRY. But in this situation we have to do it manually. Notice, that by

  5356   // using ThreadStateTransition::transition, we do a callback to the safepoint code if

  5357   // needed.

  5359   ThreadStateTransition::transition_and_fence(thread, _thread_in_vm, _thread_in_native);

  5361   // Perform any platform dependent FPU setup

  5362   os::setup_fpu();

  5364   return JNI_OK;

  5365 }

  5368 jint JNICALL jni_AttachCurrentThread(JavaVM *vm, void **penv, void *_args) {

  5369 #ifndef USDT2

  5370   DTRACE_PROBE3(hotspot_jni, AttachCurrentThread__entry, vm, penv, _args);

  5371 #else /* USDT2 */

  5372   HOTSPOT_JNI_ATTACHCURRENTTHREAD_ENTRY(

  5373                                         vm, penv, _args);

  5374 #endif /* USDT2 */

  5375   if (!vm_created) {

  5376 #ifndef USDT2

  5377     DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, JNI_ERR);

  5378 #else /* USDT2 */

  5379   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5380                                          (uint32_t) JNI_ERR);

  5381 #endif /* USDT2 */

  5382     return JNI_ERR;

  5383   }

  5385   JNIWrapper("AttachCurrentThread");

  5386   jint ret = attach_current_thread(vm, penv, _args, false);

  5387 #ifndef USDT2

  5388   DTRACE_PROBE1(hotspot_jni, AttachCurrentThread__return, ret);

  5389 #else /* USDT2 */

  5390   HOTSPOT_JNI_ATTACHCURRENTTHREAD_RETURN(

  5391                                          ret);

  5392 #endif /* USDT2 */

  5393   return ret;

  5394 }

  5397 jint JNICALL jni_DetachCurrentThread(JavaVM *vm)  {

  5398 #ifndef USDT2

  5399   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__entry, vm);

  5400 #else /* USDT2 */

  5401   HOTSPOT_JNI_DETACHCURRENTTHREAD_ENTRY(

  5402                                         vm);

  5403 #endif /* USDT2 */

  5404   VM_Exit::block_if_vm_exited();

  5406   JNIWrapper("DetachCurrentThread");

  5408   // If the thread has been deattacted the operations is a no-op

  5409   if (ThreadLocalStorage::thread() == NULL) {

  5410 #ifndef USDT2

  5411     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5412 #else /* USDT2 */

  5413   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5414                                          JNI_OK);

  5415 #endif /* USDT2 */

  5416     return JNI_OK;

  5417   }

  5419   JavaThread* thread = JavaThread::current();

  5420   if (thread->has_last_Java_frame()) {

  5421 #ifndef USDT2

  5422     DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_ERR);

  5423 #else /* USDT2 */

  5424   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5425                                          (uint32_t) JNI_ERR);

  5426 #endif /* USDT2 */

  5427     // Can't detach a thread that's running java, that can't work.

  5428     return JNI_ERR;

  5429   }

  5431   // Safepoint support. Have to do call-back to safepoint code, if in the

  5432   // middel of a safepoint operation

  5433   ThreadStateTransition::transition_from_native(thread, _thread_in_vm);

  5435   // XXX: Note that JavaThread::exit() call below removes the guards on the

  5436   // stack pages set up via enable_stack_{red,yellow}_zone() calls

  5437   // above in jni_AttachCurrentThread. Unfortunately, while the setting

  5438   // of the guards is visible in jni_AttachCurrentThread above,

  5439   // the removal of the guards is buried below in JavaThread::exit()

  5440   // here. The abstraction should be more symmetrically either exposed

  5441   // or hidden (e.g. it could probably be hidden in the same

  5442   // (platform-dependent) methods where we do alternate stack

  5443   // maintenance work?)

  5444   thread->exit(false, JavaThread::jni_detach);

  5445   delete thread;

  5447 #ifndef USDT2

  5448   DTRACE_PROBE1(hotspot_jni, DetachCurrentThread__return, JNI_OK);

  5449 #else /* USDT2 */

  5450   HOTSPOT_JNI_DETACHCURRENTTHREAD_RETURN(

  5451                                          JNI_OK);

  5452 #endif /* USDT2 */

  5453   return JNI_OK;

  5454 }

  5456 #ifndef USDT2

  5457 DT_RETURN_MARK_DECL(GetEnv, jint);

  5458 #else /* USDT2 */

  5459 DT_RETURN_MARK_DECL(GetEnv, jint

  5460                     , HOTSPOT_JNI_GETENV_RETURN(_ret_ref));

  5461 #endif /* USDT2 */

  5463 jint JNICALL jni_GetEnv(JavaVM *vm, void **penv, jint version) {

  5464 #ifndef USDT2

  5465   DTRACE_PROBE3(hotspot_jni, GetEnv__entry, vm, penv, version);

  5466 #else /* USDT2 */

  5467   HOTSPOT_JNI_GETENV_ENTRY(

  5468                            vm, penv, version);

  5469 #endif /* USDT2 */

  5470   jint ret = JNI_ERR;

  5471   DT_RETURN_MARK(GetEnv, jint, (const jint&)ret);

  5473   if (!vm_created) {

  5474     *penv = NULL;

  5475     ret = JNI_EDETACHED;

  5476     return ret;

  5477   }

  5479   if (JniExportedInterface::GetExportedInterface(vm, penv, version, &ret)) {

  5480     return ret;

  5481   }

  5483 #ifndef JVMPI_VERSION_1

  5484 // need these in order to be polite about older agents

  5485 #define JVMPI_VERSION_1   ((jint)0x10000001)

  5486 #define JVMPI_VERSION_1_1 ((jint)0x10000002)

  5487 #define JVMPI_VERSION_1_2 ((jint)0x10000003)

  5488 #endif // !JVMPI_VERSION_1

  5490   Thread* thread = ThreadLocalStorage::thread();

  5491   if (thread != NULL && thread->is_Java_thread()) {

  5492     if (Threads::is_supported_jni_version_including_1_1(version)) {

  5493       *(JNIEnv**)penv = ((JavaThread*) thread)->jni_environment();

  5494       ret = JNI_OK;

  5495       return ret;

  5497     } else if (version == JVMPI_VERSION_1 ||

  5498                version == JVMPI_VERSION_1_1 ||

  5499                version == JVMPI_VERSION_1_2) {

  5500       tty->print_cr("ERROR: JVMPI, an experimental interface, is no longer supported.");

  5501       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5502       ret = JNI_EVERSION;

  5503       return ret;

  5504     } else if (JvmtiExport::is_jvmdi_version(version)) {

  5505       tty->print_cr("FATAL ERROR: JVMDI is no longer supported.");

  5506       tty->print_cr("Please use the supported interface: the JVM Tool Interface (JVM TI).");

  5507       ret = JNI_EVERSION;

  5508       return ret;

  5509     } else {

  5510       *penv = NULL;

  5511       ret = JNI_EVERSION;

  5512       return ret;

  5513     }

  5514   } else {

  5515     *penv = NULL;

  5516     ret = JNI_EDETACHED;

  5517     return ret;

  5518   }

  5519 }

  5522 jint JNICALL jni_AttachCurrentThreadAsDaemon(JavaVM *vm, void **penv, void *_args) {

  5523 #ifndef USDT2

  5524   DTRACE_PROBE3(hotspot_jni, AttachCurrentThreadAsDaemon__entry, vm, penv, _args);

  5525 #else /* USDT2 */

  5526   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_ENTRY(

  5527                                                 vm, penv, _args);

  5528 #endif /* USDT2 */

  5529   if (!vm_created) {

  5530 #ifndef USDT2

  5531     DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, JNI_ERR);

  5532 #else /* USDT2 */

  5533   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5534                                                  (uint32_t) JNI_ERR);

  5535 #endif /* USDT2 */

  5536     return JNI_ERR;

  5537   }

  5539   JNIWrapper("AttachCurrentThreadAsDaemon");

  5540   jint ret = attach_current_thread(vm, penv, _args, true);

  5541 #ifndef USDT2

  5542   DTRACE_PROBE1(hotspot_jni, AttachCurrentThreadAsDaemon__return, ret);

  5543 #else /* USDT2 */

  5544   HOTSPOT_JNI_ATTACHCURRENTTHREADASDAEMON_RETURN(

  5545                                                  ret);

  5546 #endif /* USDT2 */

  5547   return ret;

  5548 }

  5551 } // End extern "C"

  5553 const struct JNIInvokeInterface_ jni_InvokeInterface = {

  5554     NULL,

  5555     NULL,

  5556     NULL,

  5558     jni_DestroyJavaVM,

  5559     jni_AttachCurrentThread,

  5560     jni_DetachCurrentThread,

  5561     jni_GetEnv,

  5562     jni_AttachCurrentThreadAsDaemon

  5563 };

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/prims/jni.cpp@94ec88ca68e2

src/share/vm/prims/jni.cpp