1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation
5 This file is part of libgcj.
7 This software is copyrighted work licensed under the terms of the
8 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
19 #include <java-assert.h>
25 #include <java/lang/Class.h>
26 #include <java/lang/ClassLoader.h>
27 #include <java/lang/Throwable.h>
28 #include <java/lang/ArrayIndexOutOfBoundsException.h>
29 #include <java/lang/StringIndexOutOfBoundsException.h>
30 #include <java/lang/UnsatisfiedLinkError.h>
31 #include <java/lang/InstantiationException.h>
32 #include <java/lang/NoSuchFieldError.h>
33 #include <java/lang/NoSuchMethodError.h>
34 #include <java/lang/reflect/Constructor.h>
35 #include <java/lang/reflect/Method.h>
36 #include <java/lang/reflect/Modifier.h>
37 #include <java/lang/OutOfMemoryError.h>
38 #include <java/util/IdentityHashMap.h>
39 #include <java/lang/Integer.h>
40 #include <java/lang/ThreadGroup.h>
41 #include <java/lang/Thread.h>
42 #include <java/lang/IllegalAccessError.h>
44 #include <gcj/method.h>
45 #include <gcj/field.h>
47 #include <java-interp.h>
48 #include <java-threads.h>
52 // This enum is used to select different template instantiations in
53 // the invocation code.
62 // Forward declarations.
63 extern struct JNINativeInterface _Jv_JNIFunctions
;
64 extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions
;
66 // Number of slots in the default frame. The VM must allow at least
70 // Mark value indicating this is an overflow frame.
72 // Mark value indicating this is a user frame.
74 // Mark value indicating this is a system frame.
77 // This structure is used to keep track of local references.
78 struct _Jv_JNI_LocalFrame
80 // This is true if this frame object represents a pushed frame (eg
81 // from PushLocalFrame).
84 // Number of elements in frame.
87 // Next frame in chain.
88 _Jv_JNI_LocalFrame
*next
;
90 // The elements. These are allocated using the C "struct hack".
94 // This holds a reference count for all local references.
95 static java::util::IdentityHashMap
*local_ref_table
;
96 // This holds a reference count for all global references.
97 static java::util::IdentityHashMap
*global_ref_table
;
100 static JavaVM
*the_vm
;
103 // The only JVMPI interface description.
104 static JVMPI_Interface _Jv_JVMPI_Interface
;
107 jvmpiEnableEvent (jint event_type
, void *)
111 case JVMPI_EVENT_OBJECT_ALLOC
:
112 _Jv_JVMPI_Notify_OBJECT_ALLOC
= _Jv_JVMPI_Interface
.NotifyEvent
;
115 case JVMPI_EVENT_THREAD_START
:
116 _Jv_JVMPI_Notify_THREAD_START
= _Jv_JVMPI_Interface
.NotifyEvent
;
119 case JVMPI_EVENT_THREAD_END
:
120 _Jv_JVMPI_Notify_THREAD_END
= _Jv_JVMPI_Interface
.NotifyEvent
;
124 return JVMPI_NOT_AVAILABLE
;
127 return JVMPI_SUCCESS
;
131 jvmpiDisableEvent (jint event_type
, void *)
135 case JVMPI_EVENT_OBJECT_ALLOC
:
136 _Jv_JVMPI_Notify_OBJECT_ALLOC
= NULL
;
140 return JVMPI_NOT_AVAILABLE
;
143 return JVMPI_SUCCESS
;
152 local_ref_table
= new java::util::IdentityHashMap
;
153 global_ref_table
= new java::util::IdentityHashMap
;
156 _Jv_JVMPI_Interface
.version
= 1;
157 _Jv_JVMPI_Interface
.EnableEvent
= &jvmpiEnableEvent
;
158 _Jv_JVMPI_Interface
.DisableEvent
= &jvmpiDisableEvent
;
159 _Jv_JVMPI_Interface
.EnableGC
= &_Jv_EnableGC
;
160 _Jv_JVMPI_Interface
.DisableGC
= &_Jv_DisableGC
;
161 _Jv_JVMPI_Interface
.RunGC
= &_Jv_RunGC
;
165 // Tell the GC that a certain pointer is live.
167 mark_for_gc (jobject obj
, java::util::IdentityHashMap
*ref_table
)
169 JvSynchronize
sync (ref_table
);
171 using namespace java::lang
;
172 Integer
*refcount
= (Integer
*) ref_table
->get (obj
);
173 jint val
= (refcount
== NULL
) ? 0 : refcount
->intValue ();
174 // FIXME: what about out of memory error?
175 ref_table
->put (obj
, new Integer (val
+ 1));
180 unmark_for_gc (jobject obj
, java::util::IdentityHashMap
*ref_table
)
182 JvSynchronize
sync (ref_table
);
184 using namespace java::lang
;
185 Integer
*refcount
= (Integer
*) ref_table
->get (obj
);
187 jint val
= refcount
->intValue () - 1;
190 ref_table
->remove (obj
);
192 // FIXME: what about out of memory error?
193 ref_table
->put (obj
, new Integer (val
));
196 // "Unwrap" some random non-reference type. This exists to simplify
197 // other template functions.
205 // Unwrap a weak reference, if required.
210 using namespace gnu::gcj::runtime
;
211 // We can compare the class directly because JNIWeakRef is `final'.
212 // Doing it this way is much faster.
213 if (obj
== NULL
|| obj
->getClass () != &JNIWeakRef::class$
)
215 JNIWeakRef
*wr
= reinterpret_cast<JNIWeakRef
*> (obj
);
216 return reinterpret_cast<T
*> (wr
->get ());
222 (JNICALL _Jv_JNI_NewGlobalRef
) (JNIEnv
*, jobject obj
)
224 // This seems weird but I think it is correct.
226 mark_for_gc (obj
, global_ref_table
);
231 (JNICALL _Jv_JNI_DeleteGlobalRef
) (JNIEnv
*, jobject obj
)
233 // This seems weird but I think it is correct.
235 unmark_for_gc (obj
, global_ref_table
);
239 (JNICALL _Jv_JNI_DeleteLocalRef
) (JNIEnv
*env
, jobject obj
)
241 _Jv_JNI_LocalFrame
*frame
;
243 // This seems weird but I think it is correct.
246 for (frame
= env
->locals
; frame
!= NULL
; frame
= frame
->next
)
248 for (int i
= 0; i
< frame
->size
; ++i
)
250 if (frame
->vec
[i
] == obj
)
252 frame
->vec
[i
] = NULL
;
253 unmark_for_gc (obj
, local_ref_table
);
258 // Don't go past a marked frame.
259 JvAssert (frame
->marker
== MARK_NONE
);
266 (JNICALL _Jv_JNI_EnsureLocalCapacity
) (JNIEnv
*env
, jint size
)
268 // It is easier to just always allocate a new frame of the requested
269 // size. This isn't the most efficient thing, but for now we don't
270 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
272 _Jv_JNI_LocalFrame
*frame
;
275 frame
= (_Jv_JNI_LocalFrame
*) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame
)
276 + size
* sizeof (jobject
));
284 frame
->marker
= MARK_NONE
;
286 memset (&frame
->vec
[0], 0, size
* sizeof (jobject
));
287 frame
->next
= env
->locals
;
294 (JNICALL _Jv_JNI_PushLocalFrame
) (JNIEnv
*env
, jint size
)
296 jint r
= _Jv_JNI_EnsureLocalCapacity (env
, size
);
300 // The new frame is on top.
301 env
->locals
->marker
= MARK_USER
;
307 (JNICALL _Jv_JNI_NewLocalRef
) (JNIEnv
*env
, jobject obj
)
309 // This seems weird but I think it is correct.
312 // Try to find an open slot somewhere in the topmost frame.
313 _Jv_JNI_LocalFrame
*frame
= env
->locals
;
314 bool done
= false, set
= false;
315 for (; frame
!= NULL
&& ! done
; frame
= frame
->next
)
317 for (int i
= 0; i
< frame
->size
; ++i
)
319 if (frame
->vec
[i
] == NULL
)
328 // If we found a slot, or if the frame we just searched is the
329 // mark frame, then we are done.
330 if (done
|| frame
== NULL
|| frame
->marker
!= MARK_NONE
)
336 // No slots, so we allocate a new frame. According to the spec
337 // we could just die here. FIXME: return value.
338 _Jv_JNI_EnsureLocalCapacity (env
, 16);
339 // We know the first element of the new frame will be ok.
340 env
->locals
->vec
[0] = obj
;
343 mark_for_gc (obj
, local_ref_table
);
348 (JNICALL _Jv_JNI_PopLocalFrame
) (JNIEnv
*env
, jobject result
, int stop
)
350 _Jv_JNI_LocalFrame
*rf
= env
->locals
;
353 while (rf
!= NULL
&& ! done
)
355 for (int i
= 0; i
< rf
->size
; ++i
)
356 if (rf
->vec
[i
] != NULL
)
357 unmark_for_gc (rf
->vec
[i
], local_ref_table
);
359 // If the frame we just freed is the marker frame, we are done.
360 done
= (rf
->marker
== stop
);
362 _Jv_JNI_LocalFrame
*n
= rf
->next
;
363 // When N==NULL, we've reached the stack-allocated frame, and we
364 // must not free it. However, we must be sure to clear all its
365 // elements, since we might conceivably reuse it.
368 memset (&rf
->vec
[0], 0, rf
->size
* sizeof (jobject
));
376 // Update the local frame information.
379 return result
== NULL
? NULL
: _Jv_JNI_NewLocalRef (env
, result
);
383 (JNICALL _Jv_JNI_PopLocalFrame
) (JNIEnv
*env
, jobject result
)
385 return _Jv_JNI_PopLocalFrame (env
, result
, MARK_USER
);
388 // Make sure an array's type is compatible with the type of the
392 _Jv_JNI_check_types (JNIEnv
*env
, JArray
<T
> *array
, jclass K
)
394 jclass klass
= array
->getClass()->getComponentType();
395 if (__builtin_expect (klass
!= K
, false))
397 env
->ex
= new java::lang::IllegalAccessError ();
404 // Pop a `system' frame from the stack. This is `extern "C"' as it is
405 // used by the compiler.
407 _Jv_JNI_PopSystemFrame (JNIEnv
*env
)
409 _Jv_JNI_PopLocalFrame (env
, NULL
, MARK_SYSTEM
);
413 jthrowable t
= env
->ex
;
419 // This function is used from other template functions. It wraps the
420 // return value appropriately; we specialize it so that object returns
421 // are turned into local references.
424 wrap_value (JNIEnv
*, T value
)
429 // This specialization is used for jobject, jclass, jstring, jarray,
433 wrap_value (JNIEnv
*env
, T
*value
)
435 return (value
== NULL
437 : (T
*) _Jv_JNI_NewLocalRef (env
, (jobject
) value
));
443 (JNICALL _Jv_JNI_GetVersion
) (JNIEnv
*)
445 return JNI_VERSION_1_4
;
449 (JNICALL _Jv_JNI_DefineClass
) (JNIEnv
*env
, const char *name
, jobject loader
,
450 const jbyte
*buf
, jsize bufLen
)
454 loader
= unwrap (loader
);
456 jstring sname
= JvNewStringUTF (name
);
457 jbyteArray bytes
= JvNewByteArray (bufLen
);
459 jbyte
*elts
= elements (bytes
);
460 memcpy (elts
, buf
, bufLen
* sizeof (jbyte
));
462 java::lang::ClassLoader
*l
463 = reinterpret_cast<java::lang::ClassLoader
*> (loader
);
465 jclass result
= l
->defineClass (sname
, bytes
, 0, bufLen
);
466 return (jclass
) wrap_value (env
, result
);
476 (JNICALL _Jv_JNI_FindClass
) (JNIEnv
*env
, const char *name
)
478 // FIXME: assume that NAME isn't too long.
479 int len
= strlen (name
);
481 for (int i
= 0; i
<= len
; ++i
)
482 s
[i
] = (name
[i
] == '/') ? '.' : name
[i
];
487 // This might throw an out of memory exception.
488 jstring n
= JvNewStringUTF (s
);
490 java::lang::ClassLoader
*loader
= NULL
;
491 if (env
->klass
!= NULL
)
492 loader
= env
->klass
->getClassLoader ();
496 // FIXME: should use getBaseClassLoader, but we don't have that
498 loader
= java::lang::ClassLoader::getSystemClassLoader ();
501 r
= loader
->loadClass (n
);
508 return (jclass
) wrap_value (env
, r
);
512 (JNICALL _Jv_JNI_GetSuperclass
) (JNIEnv
*env
, jclass clazz
)
514 return (jclass
) wrap_value (env
, unwrap (clazz
)->getSuperclass ());
518 (JNICALL _Jv_JNI_IsAssignableFrom
) (JNIEnv
*, jclass clazz1
, jclass clazz2
)
520 return unwrap (clazz1
)->isAssignableFrom (unwrap (clazz2
));
524 (JNICALL _Jv_JNI_Throw
) (JNIEnv
*env
, jthrowable obj
)
526 // We check in case the user did some funky cast.
528 JvAssert (obj
!= NULL
&& java::lang::Throwable::class$
.isInstance (obj
));
534 (JNICALL _Jv_JNI_ThrowNew
) (JNIEnv
*env
, jclass clazz
, const char *message
)
536 using namespace java::lang::reflect
;
538 clazz
= unwrap (clazz
);
539 JvAssert (java::lang::Throwable::class$
.isAssignableFrom (clazz
));
544 JArray
<jclass
> *argtypes
545 = (JArray
<jclass
> *) JvNewObjectArray (1, &java::lang::Class::class$
,
548 jclass
*elts
= elements (argtypes
);
549 elts
[0] = &StringClass
;
551 Constructor
*cons
= clazz
->getConstructor (argtypes
);
553 jobjectArray values
= JvNewObjectArray (1, &StringClass
, NULL
);
554 jobject
*velts
= elements (values
);
555 velts
[0] = JvNewStringUTF (message
);
557 jobject obj
= cons
->newInstance (values
);
559 env
->ex
= reinterpret_cast<jthrowable
> (obj
);
571 (JNICALL _Jv_JNI_ExceptionOccurred
) (JNIEnv
*env
)
573 return (jthrowable
) wrap_value (env
, env
->ex
);
577 (JNICALL _Jv_JNI_ExceptionDescribe
) (JNIEnv
*env
)
580 env
->ex
->printStackTrace();
584 (JNICALL _Jv_JNI_ExceptionClear
) (JNIEnv
*env
)
590 (JNICALL _Jv_JNI_ExceptionCheck
) (JNIEnv
*env
)
592 return env
->ex
!= NULL
;
596 (JNICALL _Jv_JNI_FatalError
) (JNIEnv
*, const char *message
)
604 (JNICALL _Jv_JNI_IsSameObject
) (JNIEnv
*, jobject obj1
, jobject obj2
)
606 return unwrap (obj1
) == unwrap (obj2
);
610 (JNICALL _Jv_JNI_AllocObject
) (JNIEnv
*env
, jclass clazz
)
613 using namespace java::lang::reflect
;
617 clazz
= unwrap (clazz
);
618 JvAssert (clazz
&& ! clazz
->isArray ());
619 if (clazz
->isInterface() || Modifier::isAbstract(clazz
->getModifiers()))
620 env
->ex
= new java::lang::InstantiationException ();
622 obj
= JvAllocObject (clazz
);
629 return wrap_value (env
, obj
);
633 (JNICALL _Jv_JNI_GetObjectClass
) (JNIEnv
*env
, jobject obj
)
637 return (jclass
) wrap_value (env
, obj
->getClass());
641 (JNICALL _Jv_JNI_IsInstanceOf
) (JNIEnv
*, jobject obj
, jclass clazz
)
643 return unwrap (clazz
)->isInstance(unwrap (obj
));
649 // This section concerns method invocation.
652 template<jboolean is_static
>
654 (JNICALL _Jv_JNI_GetAnyMethodID
) (JNIEnv
*env
, jclass clazz
,
655 const char *name
, const char *sig
)
659 clazz
= unwrap (clazz
);
660 _Jv_InitClass (clazz
);
662 _Jv_Utf8Const
*name_u
= _Jv_makeUtf8Const ((char *) name
, -1);
664 // FIXME: assume that SIG isn't too long.
665 int len
= strlen (sig
);
667 for (int i
= 0; i
<= len
; ++i
)
668 s
[i
] = (sig
[i
] == '/') ? '.' : sig
[i
];
669 _Jv_Utf8Const
*sig_u
= _Jv_makeUtf8Const ((char *) s
, -1);
671 JvAssert (! clazz
->isPrimitive());
673 using namespace java::lang::reflect
;
675 while (clazz
!= NULL
)
677 jint count
= JvNumMethods (clazz
);
678 jmethodID meth
= JvGetFirstMethod (clazz
);
680 for (jint i
= 0; i
< count
; ++i
)
682 if (((is_static
&& Modifier::isStatic (meth
->accflags
))
683 || (! is_static
&& ! Modifier::isStatic (meth
->accflags
)))
684 && _Jv_equalUtf8Consts (meth
->name
, name_u
)
685 && _Jv_equalUtf8Consts (meth
->signature
, sig_u
))
688 meth
= meth
->getNextMethod();
691 clazz
= clazz
->getSuperclass ();
694 env
->ex
= new java::lang::NoSuchMethodError ();
704 // This is a helper function which turns a va_list into an array of
705 // `jvalue's. It needs signature information in order to do its work.
706 // The array of values must already be allocated.
708 array_from_valist (jvalue
*values
, JArray
<jclass
> *arg_types
, va_list vargs
)
710 jclass
*arg_elts
= elements (arg_types
);
711 for (int i
= 0; i
< arg_types
->length
; ++i
)
713 // Here we assume that sizeof(int) >= sizeof(jint), because we
714 // use `int' when decoding the varargs. Likewise for
715 // float, and double. Also we assume that sizeof(jlong) >=
716 // sizeof(int), i.e. that jlong values are not further
718 JvAssert (sizeof (int) >= sizeof (jint
));
719 JvAssert (sizeof (jlong
) >= sizeof (int));
720 JvAssert (sizeof (double) >= sizeof (jfloat
));
721 JvAssert (sizeof (double) >= sizeof (jdouble
));
722 if (arg_elts
[i
] == JvPrimClass (byte
))
723 values
[i
].b
= (jbyte
) va_arg (vargs
, int);
724 else if (arg_elts
[i
] == JvPrimClass (short))
725 values
[i
].s
= (jshort
) va_arg (vargs
, int);
726 else if (arg_elts
[i
] == JvPrimClass (int))
727 values
[i
].i
= (jint
) va_arg (vargs
, int);
728 else if (arg_elts
[i
] == JvPrimClass (long))
729 values
[i
].j
= (jlong
) va_arg (vargs
, jlong
);
730 else if (arg_elts
[i
] == JvPrimClass (float))
731 values
[i
].f
= (jfloat
) va_arg (vargs
, double);
732 else if (arg_elts
[i
] == JvPrimClass (double))
733 values
[i
].d
= (jdouble
) va_arg (vargs
, double);
734 else if (arg_elts
[i
] == JvPrimClass (boolean
))
735 values
[i
].z
= (jboolean
) va_arg (vargs
, int);
736 else if (arg_elts
[i
] == JvPrimClass (char))
737 values
[i
].c
= (jchar
) va_arg (vargs
, int);
741 values
[i
].l
= unwrap (va_arg (vargs
, jobject
));
746 // This can call any sort of method: virtual, "nonvirtual", static, or
748 template<typename T
, invocation_type style
>
750 (JNICALL _Jv_JNI_CallAnyMethodV
) (JNIEnv
*env
, jobject obj
, jclass klass
,
751 jmethodID id
, va_list vargs
)
754 klass
= unwrap (klass
);
757 id
= _Jv_LookupDeclaredMethod (obj
->getClass (), id
->name
, id
->signature
);
759 jclass decl_class
= klass
? klass
: obj
->getClass ();
760 JvAssert (decl_class
!= NULL
);
763 JArray
<jclass
> *arg_types
;
767 _Jv_GetTypesFromSignature (id
, decl_class
,
768 &arg_types
, &return_type
);
770 jvalue args
[arg_types
->length
];
771 array_from_valist (args
, arg_types
, vargs
);
773 // For constructors we need to pass the Class we are instantiating.
774 if (style
== constructor
)
778 jthrowable ex
= _Jv_CallAnyMethodA (obj
, return_type
, id
,
779 style
== constructor
,
780 arg_types
, args
, &result
);
785 // We cheat a little here. FIXME.
786 return wrap_value (env
, * (T
*) &result
);
793 return wrap_value (env
, (T
) 0);
796 template<typename T
, invocation_type style
>
798 (JNICALL _Jv_JNI_CallAnyMethod
) (JNIEnv
*env
, jobject obj
, jclass klass
,
799 jmethodID method
, ...)
804 va_start (args
, method
);
805 result
= _Jv_JNI_CallAnyMethodV
<T
, style
> (env
, obj
, klass
, method
, args
);
811 template<typename T
, invocation_type style
>
813 (JNICALL _Jv_JNI_CallAnyMethodA
) (JNIEnv
*env
, jobject obj
, jclass klass
,
814 jmethodID id
, jvalue
*args
)
817 klass
= unwrap (klass
);
820 id
= _Jv_LookupDeclaredMethod (obj
->getClass (), id
->name
, id
->signature
);
822 jclass decl_class
= klass
? klass
: obj
->getClass ();
823 JvAssert (decl_class
!= NULL
);
826 JArray
<jclass
> *arg_types
;
829 _Jv_GetTypesFromSignature (id
, decl_class
,
830 &arg_types
, &return_type
);
832 // For constructors we need to pass the Class we are instantiating.
833 if (style
== constructor
)
836 // Unwrap arguments as required. Eww.
837 jclass
*type_elts
= elements (arg_types
);
838 jvalue arg_copy
[arg_types
->length
];
839 for (int i
= 0; i
< arg_types
->length
; ++i
)
841 if (type_elts
[i
]->isPrimitive ())
842 arg_copy
[i
] = args
[i
];
844 arg_copy
[i
].l
= unwrap (args
[i
].l
);
848 jthrowable ex
= _Jv_CallAnyMethodA (obj
, return_type
, id
,
849 style
== constructor
,
850 arg_types
, arg_copy
, &result
);
855 // We cheat a little here. FIXME.
856 return wrap_value (env
, * (T
*) &result
);
863 return wrap_value (env
, (T
) 0);
866 template<invocation_type style
>
868 (JNICALL _Jv_JNI_CallAnyVoidMethodV
) (JNIEnv
*env
, jobject obj
, jclass klass
,
869 jmethodID id
, va_list vargs
)
872 klass
= unwrap (klass
);
875 id
= _Jv_LookupDeclaredMethod (obj
->getClass (), id
->name
, id
->signature
);
877 jclass decl_class
= klass
? klass
: obj
->getClass ();
878 JvAssert (decl_class
!= NULL
);
881 JArray
<jclass
> *arg_types
;
884 _Jv_GetTypesFromSignature (id
, decl_class
,
885 &arg_types
, &return_type
);
887 jvalue args
[arg_types
->length
];
888 array_from_valist (args
, arg_types
, vargs
);
890 // For constructors we need to pass the Class we are instantiating.
891 if (style
== constructor
)
894 jthrowable ex
= _Jv_CallAnyMethodA (obj
, return_type
, id
,
895 style
== constructor
,
896 arg_types
, args
, NULL
);
907 template<invocation_type style
>
909 (JNICALL _Jv_JNI_CallAnyVoidMethod
) (JNIEnv
*env
, jobject obj
, jclass klass
,
910 jmethodID method
, ...)
914 va_start (args
, method
);
915 _Jv_JNI_CallAnyVoidMethodV
<style
> (env
, obj
, klass
, method
, args
);
919 template<invocation_type style
>
921 (JNICALL _Jv_JNI_CallAnyVoidMethodA
) (JNIEnv
*env
, jobject obj
, jclass klass
,
922 jmethodID id
, jvalue
*args
)
925 id
= _Jv_LookupDeclaredMethod (obj
->getClass (), id
->name
, id
->signature
);
927 jclass decl_class
= klass
? klass
: obj
->getClass ();
928 JvAssert (decl_class
!= NULL
);
931 JArray
<jclass
> *arg_types
;
934 _Jv_GetTypesFromSignature (id
, decl_class
,
935 &arg_types
, &return_type
);
937 // Unwrap arguments as required. Eww.
938 jclass
*type_elts
= elements (arg_types
);
939 jvalue arg_copy
[arg_types
->length
];
940 for (int i
= 0; i
< arg_types
->length
; ++i
)
942 if (type_elts
[i
]->isPrimitive ())
943 arg_copy
[i
] = args
[i
];
945 arg_copy
[i
].l
= unwrap (args
[i
].l
);
948 jthrowable ex
= _Jv_CallAnyMethodA (obj
, return_type
, id
,
949 style
== constructor
,
950 arg_types
, args
, NULL
);
961 // Functions with this signature are used to implement functions in
962 // the CallMethod family.
965 (JNICALL _Jv_JNI_CallMethodV
) (JNIEnv
*env
, jobject obj
,
966 jmethodID id
, va_list args
)
968 return _Jv_JNI_CallAnyMethodV
<T
, normal
> (env
, obj
, NULL
, id
, args
);
971 // Functions with this signature are used to implement functions in
972 // the CallMethod family.
975 (JNICALL _Jv_JNI_CallMethod
) (JNIEnv
*env
, jobject obj
, jmethodID id
, ...)
981 result
= _Jv_JNI_CallAnyMethodV
<T
, normal
> (env
, obj
, NULL
, id
, args
);
987 // Functions with this signature are used to implement functions in
988 // the CallMethod family.
991 (JNICALL _Jv_JNI_CallMethodA
) (JNIEnv
*env
, jobject obj
,
992 jmethodID id
, jvalue
*args
)
994 return _Jv_JNI_CallAnyMethodA
<T
, normal
> (env
, obj
, NULL
, id
, args
);
998 (JNICALL _Jv_JNI_CallVoidMethodV
) (JNIEnv
*env
, jobject obj
,
999 jmethodID id
, va_list args
)
1001 _Jv_JNI_CallAnyVoidMethodV
<normal
> (env
, obj
, NULL
, id
, args
);
1005 (JNICALL _Jv_JNI_CallVoidMethod
) (JNIEnv
*env
, jobject obj
, jmethodID id
, ...)
1009 va_start (args
, id
);
1010 _Jv_JNI_CallAnyVoidMethodV
<normal
> (env
, obj
, NULL
, id
, args
);
1015 (JNICALL _Jv_JNI_CallVoidMethodA
) (JNIEnv
*env
, jobject obj
,
1016 jmethodID id
, jvalue
*args
)
1018 _Jv_JNI_CallAnyVoidMethodA
<normal
> (env
, obj
, NULL
, id
, args
);
1021 // Functions with this signature are used to implement functions in
1022 // the CallStaticMethod family.
1023 template<typename T
>
1025 (JNICALL _Jv_JNI_CallStaticMethodV
) (JNIEnv
*env
, jclass klass
,
1026 jmethodID id
, va_list args
)
1028 JvAssert (((id
->accflags
) & java::lang::reflect::Modifier::STATIC
));
1029 JvAssert (java::lang::Class::class$
.isInstance (unwrap (klass
)));
1031 return _Jv_JNI_CallAnyMethodV
<T
, static_type
> (env
, NULL
, klass
, id
, args
);
1034 // Functions with this signature are used to implement functions in
1035 // the CallStaticMethod family.
1036 template<typename T
>
1038 (JNICALL _Jv_JNI_CallStaticMethod
) (JNIEnv
*env
, jclass klass
,
1044 JvAssert (((id
->accflags
) & java::lang::reflect::Modifier::STATIC
));
1045 JvAssert (java::lang::Class::class$
.isInstance (unwrap (klass
)));
1047 va_start (args
, id
);
1048 result
= _Jv_JNI_CallAnyMethodV
<T
, static_type
> (env
, NULL
, klass
,
1055 // Functions with this signature are used to implement functions in
1056 // the CallStaticMethod family.
1057 template<typename T
>
1059 (JNICALL _Jv_JNI_CallStaticMethodA
) (JNIEnv
*env
, jclass klass
, jmethodID id
,
1062 JvAssert (((id
->accflags
) & java::lang::reflect::Modifier::STATIC
));
1063 JvAssert (java::lang::Class::class$
.isInstance (unwrap (klass
)));
1065 return _Jv_JNI_CallAnyMethodA
<T
, static_type
> (env
, NULL
, klass
, id
, args
);
1069 (JNICALL _Jv_JNI_CallStaticVoidMethodV
) (JNIEnv
*env
, jclass klass
,
1070 jmethodID id
, va_list args
)
1072 _Jv_JNI_CallAnyVoidMethodV
<static_type
> (env
, NULL
, klass
, id
, args
);
1076 (JNICALL _Jv_JNI_CallStaticVoidMethod
) (JNIEnv
*env
, jclass klass
,
1081 va_start (args
, id
);
1082 _Jv_JNI_CallAnyVoidMethodV
<static_type
> (env
, NULL
, klass
, id
, args
);
1087 (JNICALL _Jv_JNI_CallStaticVoidMethodA
) (JNIEnv
*env
, jclass klass
,
1088 jmethodID id
, jvalue
*args
)
1090 _Jv_JNI_CallAnyVoidMethodA
<static_type
> (env
, NULL
, klass
, id
, args
);
1094 (JNICALL _Jv_JNI_NewObjectV
) (JNIEnv
*env
, jclass klass
,
1095 jmethodID id
, va_list args
)
1097 JvAssert (klass
&& ! klass
->isArray ());
1098 JvAssert (! strcmp (id
->name
->data
, "<init>")
1099 && id
->signature
->length
> 2
1100 && id
->signature
->data
[0] == '('
1101 && ! strcmp (&id
->signature
->data
[id
->signature
->length
- 2],
1104 return _Jv_JNI_CallAnyMethodV
<jobject
, constructor
> (env
, NULL
, klass
,
1109 (JNICALL _Jv_JNI_NewObject
) (JNIEnv
*env
, jclass klass
, jmethodID id
, ...)
1111 JvAssert (klass
&& ! klass
->isArray ());
1112 JvAssert (! strcmp (id
->name
->data
, "<init>")
1113 && id
->signature
->length
> 2
1114 && id
->signature
->data
[0] == '('
1115 && ! strcmp (&id
->signature
->data
[id
->signature
->length
- 2],
1121 va_start (args
, id
);
1122 result
= _Jv_JNI_CallAnyMethodV
<jobject
, constructor
> (env
, NULL
, klass
,
1130 (JNICALL _Jv_JNI_NewObjectA
) (JNIEnv
*env
, jclass klass
, jmethodID id
,
1133 JvAssert (klass
&& ! klass
->isArray ());
1134 JvAssert (! strcmp (id
->name
->data
, "<init>")
1135 && id
->signature
->length
> 2
1136 && id
->signature
->data
[0] == '('
1137 && ! strcmp (&id
->signature
->data
[id
->signature
->length
- 2],
1140 return _Jv_JNI_CallAnyMethodA
<jobject
, constructor
> (env
, NULL
, klass
,
1146 template<typename T
>
1148 (JNICALL _Jv_JNI_GetField
) (JNIEnv
*env
, jobject obj
, jfieldID field
)
1152 T
*ptr
= (T
*) ((char *) obj
+ field
->getOffset ());
1153 return wrap_value (env
, *ptr
);
1156 template<typename T
>
1158 (JNICALL _Jv_JNI_SetField
) (JNIEnv
*, jobject obj
, jfieldID field
, T value
)
1161 value
= unwrap (value
);
1164 T
*ptr
= (T
*) ((char *) obj
+ field
->getOffset ());
1168 template<jboolean is_static
>
1170 (JNICALL _Jv_JNI_GetAnyFieldID
) (JNIEnv
*env
, jclass clazz
,
1171 const char *name
, const char *sig
)
1175 clazz
= unwrap (clazz
);
1177 _Jv_InitClass (clazz
);
1179 _Jv_Utf8Const
*a_name
= _Jv_makeUtf8Const ((char *) name
, -1);
1181 // FIXME: assume that SIG isn't too long.
1182 int len
= strlen (sig
);
1184 for (int i
= 0; i
<= len
; ++i
)
1185 s
[i
] = (sig
[i
] == '/') ? '.' : sig
[i
];
1186 jclass field_class
= _Jv_FindClassFromSignature ((char *) s
, NULL
);
1188 // FIXME: what if field_class == NULL?
1190 java::lang::ClassLoader
*loader
= clazz
->getClassLoader ();
1191 while (clazz
!= NULL
)
1193 // We acquire the class lock so that fields aren't resolved
1194 // while we are running.
1195 JvSynchronize
sync (clazz
);
1197 jint count
= (is_static
1198 ? JvNumStaticFields (clazz
)
1199 : JvNumInstanceFields (clazz
));
1200 jfieldID field
= (is_static
1201 ? JvGetFirstStaticField (clazz
)
1202 : JvGetFirstInstanceField (clazz
));
1203 for (jint i
= 0; i
< count
; ++i
)
1205 _Jv_Utf8Const
*f_name
= field
->getNameUtf8Const(clazz
);
1207 // The field might be resolved or it might not be. It
1208 // is much simpler to always resolve it.
1209 _Jv_ResolveField (field
, loader
);
1210 if (_Jv_equalUtf8Consts (f_name
, a_name
)
1211 && field
->getClass() == field_class
)
1214 field
= field
->getNextField ();
1217 clazz
= clazz
->getSuperclass ();
1220 env
->ex
= new java::lang::NoSuchFieldError ();
1222 catch (jthrowable t
)
1229 template<typename T
>
1231 (JNICALL _Jv_JNI_GetStaticField
) (JNIEnv
*env
, jclass
, jfieldID field
)
1233 T
*ptr
= (T
*) field
->u
.addr
;
1234 return wrap_value (env
, *ptr
);
1237 template<typename T
>
1239 (JNICALL _Jv_JNI_SetStaticField
) (JNIEnv
*, jclass
, jfieldID field
, T value
)
1241 value
= unwrap (value
);
1242 T
*ptr
= (T
*) field
->u
.addr
;
1247 (JNICALL _Jv_JNI_NewString
) (JNIEnv
*env
, const jchar
*unichars
, jsize len
)
1251 jstring r
= _Jv_NewString (unichars
, len
);
1252 return (jstring
) wrap_value (env
, r
);
1254 catch (jthrowable t
)
1262 (JNICALL _Jv_JNI_GetStringLength
) (JNIEnv
*, jstring string
)
1264 return unwrap (string
)->length();
1267 static const jchar
*
1268 (JNICALL _Jv_JNI_GetStringChars
) (JNIEnv
*, jstring string
, jboolean
*isCopy
)
1270 string
= unwrap (string
);
1271 jchar
*result
= _Jv_GetStringChars (string
);
1272 mark_for_gc (string
, global_ref_table
);
1275 return (const jchar
*) result
;
1279 (JNICALL _Jv_JNI_ReleaseStringChars
) (JNIEnv
*, jstring string
, const jchar
*)
1281 unmark_for_gc (unwrap (string
), global_ref_table
);
1285 (JNICALL _Jv_JNI_NewStringUTF
) (JNIEnv
*env
, const char *bytes
)
1289 jstring result
= JvNewStringUTF (bytes
);
1290 return (jstring
) wrap_value (env
, result
);
1292 catch (jthrowable t
)
1300 (JNICALL _Jv_JNI_GetStringUTFLength
) (JNIEnv
*, jstring string
)
1302 return JvGetStringUTFLength (unwrap (string
));
1306 (JNICALL _Jv_JNI_GetStringUTFChars
) (JNIEnv
*env
, jstring string
,
1309 string
= unwrap (string
);
1310 jsize len
= JvGetStringUTFLength (string
);
1313 char *r
= (char *) _Jv_Malloc (len
+ 1);
1314 JvGetStringUTFRegion (string
, 0, len
, r
);
1320 return (const char *) r
;
1322 catch (jthrowable t
)
1330 (JNICALL _Jv_JNI_ReleaseStringUTFChars
) (JNIEnv
*, jstring
, const char *utf
)
1332 _Jv_Free ((void *) utf
);
1336 (JNICALL _Jv_JNI_GetStringRegion
) (JNIEnv
*env
, jstring string
, jsize start
,
1337 jsize len
, jchar
*buf
)
1339 string
= unwrap (string
);
1340 jchar
*result
= _Jv_GetStringChars (string
);
1341 if (start
< 0 || start
> string
->length ()
1342 || len
< 0 || start
+ len
> string
->length ())
1346 env
->ex
= new java::lang::StringIndexOutOfBoundsException ();
1348 catch (jthrowable t
)
1354 memcpy (buf
, &result
[start
], len
* sizeof (jchar
));
1358 (JNICALL _Jv_JNI_GetStringUTFRegion
) (JNIEnv
*env
, jstring str
, jsize start
,
1359 jsize len
, char *buf
)
1363 if (start
< 0 || start
> str
->length ()
1364 || len
< 0 || start
+ len
> str
->length ())
1368 env
->ex
= new java::lang::StringIndexOutOfBoundsException ();
1370 catch (jthrowable t
)
1376 _Jv_GetStringUTFRegion (str
, start
, len
, buf
);
1379 static const jchar
*
1380 (JNICALL _Jv_JNI_GetStringCritical
) (JNIEnv
*, jstring str
, jboolean
*isCopy
)
1382 jchar
*result
= _Jv_GetStringChars (unwrap (str
));
1389 (JNICALL _Jv_JNI_ReleaseStringCritical
) (JNIEnv
*, jstring
, const jchar
*)
1395 (JNICALL _Jv_JNI_GetArrayLength
) (JNIEnv
*, jarray array
)
1397 return unwrap (array
)->length
;
1401 (JNICALL _Jv_JNI_NewObjectArray
) (JNIEnv
*env
, jsize length
,
1402 jclass elementClass
, jobject init
)
1406 elementClass
= unwrap (elementClass
);
1407 init
= unwrap (init
);
1409 _Jv_CheckCast (elementClass
, init
);
1410 jarray result
= JvNewObjectArray (length
, elementClass
, init
);
1411 return (jarray
) wrap_value (env
, result
);
1413 catch (jthrowable t
)
1421 (JNICALL _Jv_JNI_GetObjectArrayElement
) (JNIEnv
*env
, jobjectArray array
,
1424 if ((unsigned) index
>= (unsigned) array
->length
)
1425 _Jv_ThrowBadArrayIndex (index
);
1426 jobject
*elts
= elements (unwrap (array
));
1427 return wrap_value (env
, elts
[index
]);
1431 (JNICALL _Jv_JNI_SetObjectArrayElement
) (JNIEnv
*env
, jobjectArray array
,
1432 jsize index
, jobject value
)
1436 array
= unwrap (array
);
1437 value
= unwrap (value
);
1439 _Jv_CheckArrayStore (array
, value
);
1440 if ((unsigned) index
>= (unsigned) array
->length
)
1441 _Jv_ThrowBadArrayIndex (index
);
1442 jobject
*elts
= elements (array
);
1443 elts
[index
] = value
;
1445 catch (jthrowable t
)
1451 template<typename T
, jclass K
>
1453 (JNICALL _Jv_JNI_NewPrimitiveArray
) (JNIEnv
*env
, jsize length
)
1457 return (JArray
<T
> *) wrap_value (env
, _Jv_NewPrimArray (K
, length
));
1459 catch (jthrowable t
)
1466 template<typename T
, jclass K
>
1468 (JNICALL _Jv_JNI_GetPrimitiveArrayElements
) (JNIEnv
*env
, JArray
<T
> *array
,
1471 array
= unwrap (array
);
1472 if (! _Jv_JNI_check_types (env
, array
, K
))
1474 T
*elts
= elements (array
);
1477 // We elect never to copy.
1480 mark_for_gc (array
, global_ref_table
);
1484 template<typename T
, jclass K
>
1486 (JNICALL _Jv_JNI_ReleasePrimitiveArrayElements
) (JNIEnv
*env
, JArray
<T
> *array
,
1487 T
*, jint
/* mode */)
1489 array
= unwrap (array
);
1490 _Jv_JNI_check_types (env
, array
, K
);
1491 // Note that we ignore MODE. We can do this because we never copy
1492 // the array elements. My reading of the JNI documentation is that
1493 // this is an option for the implementor.
1494 unmark_for_gc (array
, global_ref_table
);
1497 template<typename T
, jclass K
>
1499 (JNICALL _Jv_JNI_GetPrimitiveArrayRegion
) (JNIEnv
*env
, JArray
<T
> *array
,
1500 jsize start
, jsize len
,
1503 array
= unwrap (array
);
1504 if (! _Jv_JNI_check_types (env
, array
, K
))
1507 // The cast to unsigned lets us save a comparison.
1508 if (start
< 0 || len
< 0
1509 || (unsigned long) (start
+ len
) > (unsigned long) array
->length
)
1514 env
->ex
= new java::lang::ArrayIndexOutOfBoundsException ();
1516 catch (jthrowable t
)
1518 // Could have thown out of memory error.
1524 T
*elts
= elements (array
) + start
;
1525 memcpy (buf
, elts
, len
* sizeof (T
));
1529 template<typename T
, jclass K
>
1531 (JNICALL _Jv_JNI_SetPrimitiveArrayRegion
) (JNIEnv
*env
, JArray
<T
> *array
,
1532 jsize start
, jsize len
, T
*buf
)
1534 array
= unwrap (array
);
1535 if (! _Jv_JNI_check_types (env
, array
, K
))
1538 // The cast to unsigned lets us save a comparison.
1539 if (start
< 0 || len
< 0
1540 || (unsigned long) (start
+ len
) > (unsigned long) array
->length
)
1545 env
->ex
= new java::lang::ArrayIndexOutOfBoundsException ();
1547 catch (jthrowable t
)
1554 T
*elts
= elements (array
) + start
;
1555 memcpy (elts
, buf
, len
* sizeof (T
));
1560 (JNICALL _Jv_JNI_GetPrimitiveArrayCritical
) (JNIEnv
*, jarray array
,
1563 array
= unwrap (array
);
1564 // FIXME: does this work?
1565 jclass klass
= array
->getClass()->getComponentType();
1566 JvAssert (klass
->isPrimitive ());
1567 char *r
= _Jv_GetArrayElementFromElementType (array
, klass
);
1574 (JNICALL _Jv_JNI_ReleasePrimitiveArrayCritical
) (JNIEnv
*, jarray
, void *, jint
)
1580 (JNICALL _Jv_JNI_MonitorEnter
) (JNIEnv
*env
, jobject obj
)
1584 _Jv_MonitorEnter (unwrap (obj
));
1587 catch (jthrowable t
)
1595 (JNICALL _Jv_JNI_MonitorExit
) (JNIEnv
*env
, jobject obj
)
1599 _Jv_MonitorExit (unwrap (obj
));
1602 catch (jthrowable t
)
1611 (JNICALL _Jv_JNI_ToReflectedField
) (JNIEnv
*env
, jclass cls
, jfieldID fieldID
,
1617 java::lang::reflect::Field
*field
= new java::lang::reflect::Field();
1618 field
->declaringClass
= cls
;
1619 field
->offset
= (char*) fieldID
- (char *) cls
->fields
;
1620 field
->name
= _Jv_NewStringUtf8Const (fieldID
->getNameUtf8Const (cls
));
1621 return wrap_value (env
, field
);
1623 catch (jthrowable t
)
1632 (JNICALL _Jv_JNI_FromReflectedField
) (JNIEnv
*, jobject f
)
1634 using namespace java::lang::reflect
;
1637 Field
*field
= reinterpret_cast<Field
*> (f
);
1638 return _Jv_FromReflectedField (field
);
1642 (JNICALL _Jv_JNI_ToReflectedMethod
) (JNIEnv
*env
, jclass klass
, jmethodID id
,
1645 using namespace java::lang::reflect
;
1647 jobject result
= NULL
;
1648 klass
= unwrap (klass
);
1652 if (_Jv_equalUtf8Consts (id
->name
, init_name
))
1655 Constructor
*cons
= new Constructor ();
1656 cons
->offset
= (char *) id
- (char *) &klass
->methods
;
1657 cons
->declaringClass
= klass
;
1662 Method
*meth
= new Method ();
1663 meth
->offset
= (char *) id
- (char *) &klass
->methods
;
1664 meth
->declaringClass
= klass
;
1668 catch (jthrowable t
)
1673 return wrap_value (env
, result
);
1677 (JNICALL _Jv_JNI_FromReflectedMethod
) (JNIEnv
*, jobject method
)
1679 using namespace java::lang::reflect
;
1680 method
= unwrap (method
);
1681 if (Method::class$
.isInstance (method
))
1682 return _Jv_FromReflectedMethod (reinterpret_cast<Method
*> (method
));
1684 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor
*> (method
));
1689 (JNICALL _Jv_JNI_NewWeakGlobalRef
) (JNIEnv
*env
, jobject obj
)
1691 using namespace gnu::gcj::runtime
;
1692 JNIWeakRef
*ref
= NULL
;
1696 // This seems weird but I think it is correct.
1698 ref
= new JNIWeakRef (obj
);
1699 mark_for_gc (ref
, global_ref_table
);
1701 catch (jthrowable t
)
1706 return reinterpret_cast<jweak
> (ref
);
1710 (JNICALL _Jv_JNI_DeleteWeakGlobalRef
) (JNIEnv
*, jweak obj
)
1712 using namespace gnu::gcj::runtime
;
1713 JNIWeakRef
*ref
= reinterpret_cast<JNIWeakRef
*> (obj
);
1714 unmark_for_gc (ref
, global_ref_table
);
1720 // Direct byte buffers.
1723 (JNICALL _Jv_JNI_NewDirectByteBuffer
) (JNIEnv
*, void *, jlong
)
1725 // For now we don't support this.
1730 (JNICALL _Jv_JNI_GetDirectBufferAddress
) (JNIEnv
*, jobject
)
1732 // For now we don't support this.
1737 (JNICALL _Jv_JNI_GetDirectBufferCapacity
) (JNIEnv
*, jobject
)
1739 // For now we don't support this.
1745 // Hash table of native methods.
1746 static JNINativeMethod
*nathash
;
1747 // Number of slots used.
1748 static int nathash_count
= 0;
1749 // Number of slots available. Must be power of 2.
1750 static int nathash_size
= 0;
1752 #define DELETED_ENTRY ((char *) (~0))
1754 // Compute a hash value for a native method descriptor.
1756 hash (const JNINativeMethod
*method
)
1763 hash
= (31 * hash
) + *ptr
++;
1765 ptr
= method
->signature
;
1767 hash
= (31 * hash
) + *ptr
++;
1772 // Find the slot where a native method goes.
1773 static JNINativeMethod
*
1774 nathash_find_slot (const JNINativeMethod
*method
)
1776 jint h
= hash (method
);
1777 int step
= (h
^ (h
>> 16)) | 1;
1778 int w
= h
& (nathash_size
- 1);
1783 JNINativeMethod
*slotp
= &nathash
[w
];
1784 if (slotp
->name
== NULL
)
1787 return &nathash
[del
];
1791 else if (slotp
->name
== DELETED_ENTRY
)
1793 else if (! strcmp (slotp
->name
, method
->name
)
1794 && ! strcmp (slotp
->signature
, method
->signature
))
1796 w
= (w
+ step
) & (nathash_size
- 1);
1800 // Find a method. Return NULL if it isn't in the hash table.
1802 nathash_find (JNINativeMethod
*method
)
1804 if (nathash
== NULL
)
1806 JNINativeMethod
*slot
= nathash_find_slot (method
);
1807 if (slot
->name
== NULL
|| slot
->name
== DELETED_ENTRY
)
1815 if (nathash
== NULL
)
1817 nathash_size
= 1024;
1819 (JNINativeMethod
*) _Jv_AllocBytes (nathash_size
1820 * sizeof (JNINativeMethod
));
1821 memset (nathash
, 0, nathash_size
* sizeof (JNINativeMethod
));
1825 int savesize
= nathash_size
;
1826 JNINativeMethod
*savehash
= nathash
;
1829 (JNINativeMethod
*) _Jv_AllocBytes (nathash_size
1830 * sizeof (JNINativeMethod
));
1831 memset (nathash
, 0, nathash_size
* sizeof (JNINativeMethod
));
1833 for (int i
= 0; i
< savesize
; ++i
)
1835 if (savehash
[i
].name
!= NULL
&& savehash
[i
].name
!= DELETED_ENTRY
)
1837 JNINativeMethod
*slot
= nathash_find_slot (&savehash
[i
]);
1838 *slot
= savehash
[i
];
1845 nathash_add (const JNINativeMethod
*method
)
1847 if (3 * nathash_count
>= 2 * nathash_size
)
1849 JNINativeMethod
*slot
= nathash_find_slot (method
);
1850 // If the slot has a real entry in it, then there is no work to do.
1851 if (slot
->name
!= NULL
&& slot
->name
!= DELETED_ENTRY
)
1854 slot
->name
= strdup (method
->name
);
1855 slot
->signature
= strdup (method
->signature
);
1856 slot
->fnPtr
= method
->fnPtr
;
1860 (JNICALL _Jv_JNI_RegisterNatives
) (JNIEnv
*env
, jclass klass
,
1861 const JNINativeMethod
*methods
,
1864 // Synchronize while we do the work. This must match
1865 // synchronization in some other functions that manipulate or use
1866 // the nathash table.
1867 JvSynchronize
sync (global_ref_table
);
1869 // Look at each descriptor given us, and find the corresponding
1870 // method in the class.
1871 for (int j
= 0; j
< nMethods
; ++j
)
1875 _Jv_Method
*imeths
= JvGetFirstMethod (klass
);
1876 for (int i
= 0; i
< JvNumMethods (klass
); ++i
)
1878 _Jv_Method
*self
= &imeths
[i
];
1880 if (! strcmp (self
->name
->data
, methods
[j
].name
)
1881 && ! strcmp (self
->signature
->data
, methods
[j
].signature
))
1883 if (! (self
->accflags
1884 & java::lang::reflect::Modifier::NATIVE
))
1887 // Found a match that is native.
1889 nathash_add (&methods
[j
]);
1897 jstring m
= JvNewStringUTF (methods
[j
].name
);
1900 env
->ex
=new java::lang::NoSuchMethodError (m
);
1902 catch (jthrowable t
)
1914 (JNICALL _Jv_JNI_UnregisterNatives
) (JNIEnv
*, jclass
)
1916 // FIXME -- we could implement this.
1922 // Add a character to the buffer, encoding properly.
1924 add_char (char *buf
, jchar c
, int *here
)
1928 buf
[(*here
)++] = '_';
1929 buf
[(*here
)++] = '1';
1933 buf
[(*here
)++] = '_';
1934 buf
[(*here
)++] = '2';
1938 buf
[(*here
)++] = '_';
1939 buf
[(*here
)++] = '3';
1942 // Also check for `.' here because we might be passed an internal
1943 // qualified class name like `foo.bar'.
1944 else if (c
== '/' || c
== '.')
1945 buf
[(*here
)++] = '_';
1946 else if ((c
>= '0' && c
<= '9')
1947 || (c
>= 'a' && c
<= 'z')
1948 || (c
>= 'A' && c
<= 'Z'))
1949 buf
[(*here
)++] = (char) c
;
1952 // "Unicode" character.
1953 buf
[(*here
)++] = '_';
1954 buf
[(*here
)++] = '0';
1955 for (int i
= 0; i
< 4; ++i
)
1958 buf
[(*here
) + 3 - i
] = (val
> 10) ? ('a' + val
- 10) : ('0' + val
);
1965 // Compute a mangled name for a native function. This computes the
1966 // long name, and also returns an index which indicates where a NUL
1967 // can be placed to create the short name. This function assumes that
1968 // the buffer is large enough for its results.
1970 mangled_name (jclass klass
, _Jv_Utf8Const
*func_name
,
1971 _Jv_Utf8Const
*signature
, char *buf
, int *long_start
)
1973 strcpy (buf
, "Java_");
1976 // Add fully qualified class name.
1977 jchar
*chars
= _Jv_GetStringChars (klass
->getName ());
1978 jint len
= klass
->getName ()->length ();
1979 for (int i
= 0; i
< len
; ++i
)
1980 add_char (buf
, chars
[i
], &here
);
1982 // Don't use add_char because we need a literal `_'.
1985 const unsigned char *fn
= (const unsigned char *) func_name
->data
;
1986 const unsigned char *limit
= fn
+ func_name
->length
;
1987 for (int i
= 0; ; ++i
)
1989 int ch
= UTF8_GET (fn
, limit
);
1992 add_char (buf
, ch
, &here
);
1995 // This is where the long signature begins.
2000 const unsigned char *sig
= (const unsigned char *) signature
->data
;
2001 limit
= sig
+ signature
->length
;
2002 JvAssert (sig
[0] == '(');
2006 int ch
= UTF8_GET (sig
, limit
);
2007 if (ch
== ')' || ch
< 0)
2009 add_char (buf
, ch
, &here
);
2015 // Return the current thread's JNIEnv; if one does not exist, create
2016 // it. Also create a new system frame for use. This is `extern "C"'
2017 // because the compiler calls it.
2019 _Jv_GetJNIEnvNewFrame (jclass klass
)
2021 JNIEnv
*env
= _Jv_GetCurrentJNIEnv ();
2024 env
= (JNIEnv
*) _Jv_MallocUnchecked (sizeof (JNIEnv
));
2025 env
->p
= &_Jv_JNIFunctions
;
2028 // We set env->ex below.
2030 _Jv_SetCurrentJNIEnv (env
);
2033 _Jv_JNI_LocalFrame
*frame
2034 = (_Jv_JNI_LocalFrame
*) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame
)
2036 * sizeof (jobject
)));
2038 frame
->marker
= MARK_SYSTEM
;
2039 frame
->size
= FRAME_SIZE
;
2040 frame
->next
= env
->locals
;
2042 for (int i
= 0; i
< frame
->size
; ++i
)
2043 frame
->vec
[i
] = NULL
;
2045 env
->locals
= frame
;
2051 // Return the function which implements a particular JNI method. If
2052 // we can't find the function, we throw the appropriate exception.
2053 // This is `extern "C"' because the compiler uses it.
2055 _Jv_LookupJNIMethod (jclass klass
, _Jv_Utf8Const
*name
,
2056 _Jv_Utf8Const
*signature
, int args_size
)
2058 char buf
[10 + 6 * (name
->length
+ signature
->length
) + 12];
2062 // Synchronize on something convenient. Right now we use the hash.
2063 JvSynchronize
sync (global_ref_table
);
2065 // First see if we have an override in the hash table.
2066 strncpy (buf
, name
->data
, name
->length
);
2067 buf
[name
->length
] = '\0';
2068 strncpy (buf
+ name
->length
+ 1, signature
->data
, signature
->length
);
2069 buf
[name
->length
+ signature
->length
+ 1] = '\0';
2070 JNINativeMethod meth
;
2072 meth
.signature
= buf
+ name
->length
+ 1;
2073 function
= nathash_find (&meth
);
2074 if (function
!= NULL
)
2077 // If there was no override, then look in the symbol table.
2079 mangled_name (klass
, name
, signature
, buf
+ 1, &long_start
);
2080 char c
= buf
[long_start
+ 1];
2081 buf
[long_start
+ 1] = '\0';
2083 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2085 // On Win32, we use the "stdcall" calling convention (see JNICALL
2088 // For a function named 'fooBar' that takes 'nn' bytes as arguments,
2089 // by default, MinGW GCC exports it as 'fooBar@nn', MSVC exports it
2090 // as '_fooBar@nn' and Borland C exports it as 'fooBar'. We try to
2091 // take care of all these variations here.
2093 char asz_buf
[12]; /* '@' + '2147483647' (32-bit INT_MAX) + '\0' */
2094 char long_nm_sv
[11]; /* Ditto, except for the '\0'. */
2096 if (function
== NULL
)
2098 // We have tried searching for the 'fooBar' form (BCC) - now
2101 // First, save the part of the long name that will be damaged
2102 // by appending '@nn'.
2103 memcpy (long_nm_sv
, (buf
+ long_start
+ 1 + 1), sizeof (long_nm_sv
));
2105 sprintf (asz_buf
, "@%d", args_size
);
2106 strcat (buf
, asz_buf
);
2108 // Search for the '_fooBar@nn' form (MSVC).
2109 function
= _Jv_FindSymbolInExecutable (buf
);
2111 if (function
== NULL
)
2113 // Search for the 'fooBar@nn' form (MinGW GCC).
2114 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2118 args_size
; /* Dummy statement to avoid unused parameter warning */
2119 #endif /* ! WIN32 */
2121 if (function
== NULL
)
2123 buf
[long_start
+ 1] = c
;
2125 // Restore the part of the long name that was damaged by
2126 // appending the '@nn'.
2127 memcpy ((buf
+ long_start
+ 1 + 1), long_nm_sv
, sizeof (long_nm_sv
));
2129 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2130 if (function
== NULL
)
2133 strcat (buf
, asz_buf
);
2134 function
= _Jv_FindSymbolInExecutable (buf
);
2135 if (function
== NULL
)
2136 function
= _Jv_FindSymbolInExecutable (buf
+ 1);
2138 if (function
== NULL
)
2141 jstring str
= JvNewStringUTF (name
->data
);
2142 throw new java::lang::UnsatisfiedLinkError (str
);
2152 // This function is the stub which is used to turn an ordinary (CNI)
2153 // method call into a JNI call.
2155 _Jv_JNIMethod::call (ffi_cif
*, void *ret
, ffi_raw
*args
, void *__this
)
2157 _Jv_JNIMethod
* _this
= (_Jv_JNIMethod
*) __this
;
2159 JNIEnv
*env
= _Jv_GetJNIEnvNewFrame (_this
->defining_class
);
2161 // FIXME: we should mark every reference parameter as a local. For
2162 // now we assume a conservative GC, and we assume that the
2163 // references are on the stack somewhere.
2165 // We cache the value that we find, of course, but if we don't find
2166 // a value we don't cache that fact -- we might subsequently load a
2167 // library which finds the function in question.
2169 // Synchronize on a convenient object to ensure sanity in case two
2170 // threads reach this point for the same function at the same
2172 JvSynchronize
sync (global_ref_table
);
2173 if (_this
->function
== NULL
)
2175 int args_size
= sizeof (JNIEnv
*) + _this
->args_raw_size
;
2177 if (_this
->self
->accflags
& java::lang::reflect::Modifier::STATIC
)
2178 args_size
+= sizeof (_this
->defining_class
);
2180 _this
->function
= _Jv_LookupJNIMethod (_this
->defining_class
,
2182 _this
->self
->signature
,
2187 JvAssert (_this
->args_raw_size
% sizeof (ffi_raw
) == 0);
2188 ffi_raw real_args
[2 + _this
->args_raw_size
/ sizeof (ffi_raw
)];
2191 // First argument is always the environment pointer.
2192 real_args
[offset
++].ptr
= env
;
2194 // For a static method, we pass in the Class. For non-static
2195 // methods, the `this' argument is already handled.
2196 if ((_this
->self
->accflags
& java::lang::reflect::Modifier::STATIC
))
2197 real_args
[offset
++].ptr
= _this
->defining_class
;
2199 // In libgcj, the callee synchronizes.
2200 jobject sync
= NULL
;
2201 if ((_this
->self
->accflags
& java::lang::reflect::Modifier::SYNCHRONIZED
))
2203 if ((_this
->self
->accflags
& java::lang::reflect::Modifier::STATIC
))
2204 sync
= _this
->defining_class
;
2206 sync
= (jobject
) args
[0].ptr
;
2207 _Jv_MonitorEnter (sync
);
2210 // Copy over passed-in arguments.
2211 memcpy (&real_args
[offset
], args
, _this
->args_raw_size
);
2213 // The actual call to the JNI function.
2214 ffi_raw_call (&_this
->jni_cif
, (void (*)()) _this
->function
,
2218 _Jv_MonitorExit (sync
);
2220 _Jv_JNI_PopSystemFrame (env
);
2223 #endif /* INTERPRETER */
2231 // An internal helper function.
2233 _Jv_JNI_AttachCurrentThread (JavaVM
*, jstring name
, void **penv
,
2234 void *args
, jboolean is_daemon
)
2236 JavaVMAttachArgs
*attach
= reinterpret_cast<JavaVMAttachArgs
*> (args
);
2237 java::lang::ThreadGroup
*group
= NULL
;
2241 // FIXME: do we really want to support 1.1?
2242 if (attach
->version
!= JNI_VERSION_1_4
2243 && attach
->version
!= JNI_VERSION_1_2
2244 && attach
->version
!= JNI_VERSION_1_1
)
2245 return JNI_EVERSION
;
2247 JvAssert (java::lang::ThreadGroup::class$
.isInstance (attach
->group
));
2248 group
= reinterpret_cast<java::lang::ThreadGroup
*> (attach
->group
);
2251 // Attaching an already-attached thread is a no-op.
2252 if (_Jv_GetCurrentJNIEnv () != NULL
)
2255 JNIEnv
*env
= (JNIEnv
*) _Jv_MallocUnchecked (sizeof (JNIEnv
));
2258 env
->p
= &_Jv_JNIFunctions
;
2262 = (_Jv_JNI_LocalFrame
*) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame
)
2264 * sizeof (jobject
)));
2265 if (env
->locals
== NULL
)
2271 env
->locals
->marker
= MARK_SYSTEM
;
2272 env
->locals
->size
= FRAME_SIZE
;
2273 env
->locals
->next
= NULL
;
2275 for (int i
= 0; i
< env
->locals
->size
; ++i
)
2276 env
->locals
->vec
[i
] = NULL
;
2278 *penv
= reinterpret_cast<void *> (env
);
2280 // This thread might already be a Java thread -- this function might
2281 // have been called simply to set the new JNIEnv.
2282 if (_Jv_ThreadCurrent () == NULL
)
2287 _Jv_AttachCurrentThreadAsDaemon (name
, group
);
2289 _Jv_AttachCurrentThread (name
, group
);
2291 catch (jthrowable t
)
2296 _Jv_SetCurrentJNIEnv (env
);
2301 // This is the one actually used by JNI.
2303 (JNICALL _Jv_JNI_AttachCurrentThread
) (JavaVM
*vm
, void **penv
, void *args
)
2305 return _Jv_JNI_AttachCurrentThread (vm
, NULL
, penv
, args
, false);
2309 (JNICALL _Jv_JNI_AttachCurrentThreadAsDaemon
) (JavaVM
*vm
, void **penv
,
2312 return _Jv_JNI_AttachCurrentThread (vm
, NULL
, penv
, args
, true);
2316 (JNICALL _Jv_JNI_DestroyJavaVM
) (JavaVM
*vm
)
2318 JvAssert (the_vm
&& vm
== the_vm
);
2321 if (_Jv_ThreadCurrent () != NULL
)
2327 main_name
= JvNewStringLatin1 ("main");
2329 catch (jthrowable t
)
2334 jint r
= _Jv_JNI_AttachCurrentThread (vm
, main_name
,
2335 reinterpret_cast<void **> (&env
),
2341 env
= _Jv_GetCurrentJNIEnv ();
2345 // Docs say that this always returns an error code.
2350 (JNICALL _Jv_JNI_DetachCurrentThread
) (JavaVM
*)
2352 jint code
= _Jv_DetachCurrentThread ();
2353 return code
? JNI_EDETACHED
: 0;
2357 (JNICALL _Jv_JNI_GetEnv
) (JavaVM
*, void **penv
, jint version
)
2359 if (_Jv_ThreadCurrent () == NULL
)
2362 return JNI_EDETACHED
;
2366 // Handle JVMPI requests.
2367 if (version
== JVMPI_VERSION_1
)
2369 *penv
= (void *) &_Jv_JVMPI_Interface
;
2374 // FIXME: do we really want to support 1.1?
2375 if (version
!= JNI_VERSION_1_4
&& version
!= JNI_VERSION_1_2
2376 && version
!= JNI_VERSION_1_1
)
2379 return JNI_EVERSION
;
2382 *penv
= (void *) _Jv_GetCurrentJNIEnv ();
2386 JNIEXPORT jint JNICALL
2387 JNI_GetDefaultJavaVMInitArgs (void *args
)
2389 jint version
= * (jint
*) args
;
2390 // Here we only support 1.2 and 1.4.
2391 if (version
!= JNI_VERSION_1_2
&& version
!= JNI_VERSION_1_4
)
2392 return JNI_EVERSION
;
2394 JavaVMInitArgs
*ia
= reinterpret_cast<JavaVMInitArgs
*> (args
);
2395 ia
->version
= JNI_VERSION_1_4
;
2398 ia
->ignoreUnrecognized
= true;
2403 JNIEXPORT jint JNICALL
2404 JNI_CreateJavaVM (JavaVM
**vm
, void **penv
, void *args
)
2406 JvAssert (! the_vm
);
2408 _Jv_CreateJavaVM (NULL
);
2410 // FIXME: synchronize
2411 JavaVM
*nvm
= (JavaVM
*) _Jv_MallocUnchecked (sizeof (JavaVM
));
2414 nvm
->functions
= &_Jv_JNI_InvokeFunctions
;
2416 // Parse the arguments.
2419 jint version
= * (jint
*) args
;
2420 // We only support 1.2 and 1.4.
2421 if (version
!= JNI_VERSION_1_2
&& version
!= JNI_VERSION_1_4
)
2422 return JNI_EVERSION
;
2423 JavaVMInitArgs
*ia
= reinterpret_cast<JavaVMInitArgs
*> (args
);
2424 for (int i
= 0; i
< ia
->nOptions
; ++i
)
2426 if (! strcmp (ia
->options
[i
].optionString
, "vfprintf")
2427 || ! strcmp (ia
->options
[i
].optionString
, "exit")
2428 || ! strcmp (ia
->options
[i
].optionString
, "abort"))
2430 // We are required to recognize these, but for now we
2431 // don't handle them in any way. FIXME.
2434 else if (! strncmp (ia
->options
[i
].optionString
,
2435 "-verbose", sizeof ("-verbose") - 1))
2437 // We don't do anything with this option either. We
2438 // might want to make sure the argument is valid, but we
2439 // don't really care all that much for now.
2442 else if (! strncmp (ia
->options
[i
].optionString
, "-D", 2))
2447 else if (ia
->ignoreUnrecognized
)
2449 if (ia
->options
[i
].optionString
[0] == '_'
2450 || ! strncmp (ia
->options
[i
].optionString
, "-X", 2))
2458 jint r
=_Jv_JNI_AttachCurrentThread (nvm
, penv
, NULL
);
2468 JNIEXPORT jint JNICALL
2469 JNI_GetCreatedJavaVMs (JavaVM
**vm_buffer
, jsize buf_len
, jsize
*n_vms
)
2474 // We only support a single VM.
2477 vm_buffer
[0] = the_vm
;
2488 // FIXME: synchronize
2491 JavaVM
*nvm
= (JavaVM
*) _Jv_MallocUnchecked (sizeof (JavaVM
));
2493 nvm
->functions
= &_Jv_JNI_InvokeFunctions
;
2497 // If this is a Java thread, we want to make sure it has an
2498 // associated JNIEnv.
2499 if (_Jv_ThreadCurrent () != NULL
)
2502 _Jv_JNI_AttachCurrentThread (the_vm
, &ignore
, NULL
);
2509 (JNICALL _Jv_JNI_GetJavaVM
) (JNIEnv
*, JavaVM
**vm
)
2511 *vm
= _Jv_GetJavaVM ();
2512 return *vm
== NULL
? JNI_ERR
: JNI_OK
;
2517 #define RESERVED NULL
2519 struct JNINativeInterface _Jv_JNIFunctions
=
2525 _Jv_JNI_GetVersion
, // GetVersion
2526 _Jv_JNI_DefineClass
, // DefineClass
2527 _Jv_JNI_FindClass
, // FindClass
2528 _Jv_JNI_FromReflectedMethod
, // FromReflectedMethod
2529 _Jv_JNI_FromReflectedField
, // FromReflectedField
2530 _Jv_JNI_ToReflectedMethod
, // ToReflectedMethod
2531 _Jv_JNI_GetSuperclass
, // GetSuperclass
2532 _Jv_JNI_IsAssignableFrom
, // IsAssignableFrom
2533 _Jv_JNI_ToReflectedField
, // ToReflectedField
2534 _Jv_JNI_Throw
, // Throw
2535 _Jv_JNI_ThrowNew
, // ThrowNew
2536 _Jv_JNI_ExceptionOccurred
, // ExceptionOccurred
2537 _Jv_JNI_ExceptionDescribe
, // ExceptionDescribe
2538 _Jv_JNI_ExceptionClear
, // ExceptionClear
2539 _Jv_JNI_FatalError
, // FatalError
2541 _Jv_JNI_PushLocalFrame
, // PushLocalFrame
2542 _Jv_JNI_PopLocalFrame
, // PopLocalFrame
2543 _Jv_JNI_NewGlobalRef
, // NewGlobalRef
2544 _Jv_JNI_DeleteGlobalRef
, // DeleteGlobalRef
2545 _Jv_JNI_DeleteLocalRef
, // DeleteLocalRef
2547 _Jv_JNI_IsSameObject
, // IsSameObject
2549 _Jv_JNI_NewLocalRef
, // NewLocalRef
2550 _Jv_JNI_EnsureLocalCapacity
, // EnsureLocalCapacity
2552 _Jv_JNI_AllocObject
, // AllocObject
2553 _Jv_JNI_NewObject
, // NewObject
2554 _Jv_JNI_NewObjectV
, // NewObjectV
2555 _Jv_JNI_NewObjectA
, // NewObjectA
2556 _Jv_JNI_GetObjectClass
, // GetObjectClass
2557 _Jv_JNI_IsInstanceOf
, // IsInstanceOf
2558 _Jv_JNI_GetAnyMethodID
<false>, // GetMethodID
2560 _Jv_JNI_CallMethod
<jobject
>, // CallObjectMethod
2561 _Jv_JNI_CallMethodV
<jobject
>, // CallObjectMethodV
2562 _Jv_JNI_CallMethodA
<jobject
>, // CallObjectMethodA
2563 _Jv_JNI_CallMethod
<jboolean
>, // CallBooleanMethod
2564 _Jv_JNI_CallMethodV
<jboolean
>, // CallBooleanMethodV
2565 _Jv_JNI_CallMethodA
<jboolean
>, // CallBooleanMethodA
2566 _Jv_JNI_CallMethod
<jbyte
>, // CallByteMethod
2567 _Jv_JNI_CallMethodV
<jbyte
>, // CallByteMethodV
2568 _Jv_JNI_CallMethodA
<jbyte
>, // CallByteMethodA
2569 _Jv_JNI_CallMethod
<jchar
>, // CallCharMethod
2570 _Jv_JNI_CallMethodV
<jchar
>, // CallCharMethodV
2571 _Jv_JNI_CallMethodA
<jchar
>, // CallCharMethodA
2572 _Jv_JNI_CallMethod
<jshort
>, // CallShortMethod
2573 _Jv_JNI_CallMethodV
<jshort
>, // CallShortMethodV
2574 _Jv_JNI_CallMethodA
<jshort
>, // CallShortMethodA
2575 _Jv_JNI_CallMethod
<jint
>, // CallIntMethod
2576 _Jv_JNI_CallMethodV
<jint
>, // CallIntMethodV
2577 _Jv_JNI_CallMethodA
<jint
>, // CallIntMethodA
2578 _Jv_JNI_CallMethod
<jlong
>, // CallLongMethod
2579 _Jv_JNI_CallMethodV
<jlong
>, // CallLongMethodV
2580 _Jv_JNI_CallMethodA
<jlong
>, // CallLongMethodA
2581 _Jv_JNI_CallMethod
<jfloat
>, // CallFloatMethod
2582 _Jv_JNI_CallMethodV
<jfloat
>, // CallFloatMethodV
2583 _Jv_JNI_CallMethodA
<jfloat
>, // CallFloatMethodA
2584 _Jv_JNI_CallMethod
<jdouble
>, // CallDoubleMethod
2585 _Jv_JNI_CallMethodV
<jdouble
>, // CallDoubleMethodV
2586 _Jv_JNI_CallMethodA
<jdouble
>, // CallDoubleMethodA
2587 _Jv_JNI_CallVoidMethod
, // CallVoidMethod
2588 _Jv_JNI_CallVoidMethodV
, // CallVoidMethodV
2589 _Jv_JNI_CallVoidMethodA
, // CallVoidMethodA
2591 // Nonvirtual method invocation functions follow.
2592 _Jv_JNI_CallAnyMethod
<jobject
, nonvirtual
>, // CallNonvirtualObjectMethod
2593 _Jv_JNI_CallAnyMethodV
<jobject
, nonvirtual
>, // CallNonvirtualObjectMethodV
2594 _Jv_JNI_CallAnyMethodA
<jobject
, nonvirtual
>, // CallNonvirtualObjectMethodA
2595 _Jv_JNI_CallAnyMethod
<jboolean
, nonvirtual
>, // CallNonvirtualBooleanMethod
2596 _Jv_JNI_CallAnyMethodV
<jboolean
, nonvirtual
>, // CallNonvirtualBooleanMethodV
2597 _Jv_JNI_CallAnyMethodA
<jboolean
, nonvirtual
>, // CallNonvirtualBooleanMethodA
2598 _Jv_JNI_CallAnyMethod
<jbyte
, nonvirtual
>, // CallNonvirtualByteMethod
2599 _Jv_JNI_CallAnyMethodV
<jbyte
, nonvirtual
>, // CallNonvirtualByteMethodV
2600 _Jv_JNI_CallAnyMethodA
<jbyte
, nonvirtual
>, // CallNonvirtualByteMethodA
2601 _Jv_JNI_CallAnyMethod
<jchar
, nonvirtual
>, // CallNonvirtualCharMethod
2602 _Jv_JNI_CallAnyMethodV
<jchar
, nonvirtual
>, // CallNonvirtualCharMethodV
2603 _Jv_JNI_CallAnyMethodA
<jchar
, nonvirtual
>, // CallNonvirtualCharMethodA
2604 _Jv_JNI_CallAnyMethod
<jshort
, nonvirtual
>, // CallNonvirtualShortMethod
2605 _Jv_JNI_CallAnyMethodV
<jshort
, nonvirtual
>, // CallNonvirtualShortMethodV
2606 _Jv_JNI_CallAnyMethodA
<jshort
, nonvirtual
>, // CallNonvirtualShortMethodA
2607 _Jv_JNI_CallAnyMethod
<jint
, nonvirtual
>, // CallNonvirtualIntMethod
2608 _Jv_JNI_CallAnyMethodV
<jint
, nonvirtual
>, // CallNonvirtualIntMethodV
2609 _Jv_JNI_CallAnyMethodA
<jint
, nonvirtual
>, // CallNonvirtualIntMethodA
2610 _Jv_JNI_CallAnyMethod
<jlong
, nonvirtual
>, // CallNonvirtualLongMethod
2611 _Jv_JNI_CallAnyMethodV
<jlong
, nonvirtual
>, // CallNonvirtualLongMethodV
2612 _Jv_JNI_CallAnyMethodA
<jlong
, nonvirtual
>, // CallNonvirtualLongMethodA
2613 _Jv_JNI_CallAnyMethod
<jfloat
, nonvirtual
>, // CallNonvirtualFloatMethod
2614 _Jv_JNI_CallAnyMethodV
<jfloat
, nonvirtual
>, // CallNonvirtualFloatMethodV
2615 _Jv_JNI_CallAnyMethodA
<jfloat
, nonvirtual
>, // CallNonvirtualFloatMethodA
2616 _Jv_JNI_CallAnyMethod
<jdouble
, nonvirtual
>, // CallNonvirtualDoubleMethod
2617 _Jv_JNI_CallAnyMethodV
<jdouble
, nonvirtual
>, // CallNonvirtualDoubleMethodV
2618 _Jv_JNI_CallAnyMethodA
<jdouble
, nonvirtual
>, // CallNonvirtualDoubleMethodA
2619 _Jv_JNI_CallAnyVoidMethod
<nonvirtual
>, // CallNonvirtualVoidMethod
2620 _Jv_JNI_CallAnyVoidMethodV
<nonvirtual
>, // CallNonvirtualVoidMethodV
2621 _Jv_JNI_CallAnyVoidMethodA
<nonvirtual
>, // CallNonvirtualVoidMethodA
2623 _Jv_JNI_GetAnyFieldID
<false>, // GetFieldID
2624 _Jv_JNI_GetField
<jobject
>, // GetObjectField
2625 _Jv_JNI_GetField
<jboolean
>, // GetBooleanField
2626 _Jv_JNI_GetField
<jbyte
>, // GetByteField
2627 _Jv_JNI_GetField
<jchar
>, // GetCharField
2628 _Jv_JNI_GetField
<jshort
>, // GetShortField
2629 _Jv_JNI_GetField
<jint
>, // GetIntField
2630 _Jv_JNI_GetField
<jlong
>, // GetLongField
2631 _Jv_JNI_GetField
<jfloat
>, // GetFloatField
2632 _Jv_JNI_GetField
<jdouble
>, // GetDoubleField
2633 _Jv_JNI_SetField
, // SetObjectField
2634 _Jv_JNI_SetField
, // SetBooleanField
2635 _Jv_JNI_SetField
, // SetByteField
2636 _Jv_JNI_SetField
, // SetCharField
2637 _Jv_JNI_SetField
, // SetShortField
2638 _Jv_JNI_SetField
, // SetIntField
2639 _Jv_JNI_SetField
, // SetLongField
2640 _Jv_JNI_SetField
, // SetFloatField
2641 _Jv_JNI_SetField
, // SetDoubleField
2642 _Jv_JNI_GetAnyMethodID
<true>, // GetStaticMethodID
2644 _Jv_JNI_CallStaticMethod
<jobject
>, // CallStaticObjectMethod
2645 _Jv_JNI_CallStaticMethodV
<jobject
>, // CallStaticObjectMethodV
2646 _Jv_JNI_CallStaticMethodA
<jobject
>, // CallStaticObjectMethodA
2647 _Jv_JNI_CallStaticMethod
<jboolean
>, // CallStaticBooleanMethod
2648 _Jv_JNI_CallStaticMethodV
<jboolean
>, // CallStaticBooleanMethodV
2649 _Jv_JNI_CallStaticMethodA
<jboolean
>, // CallStaticBooleanMethodA
2650 _Jv_JNI_CallStaticMethod
<jbyte
>, // CallStaticByteMethod
2651 _Jv_JNI_CallStaticMethodV
<jbyte
>, // CallStaticByteMethodV
2652 _Jv_JNI_CallStaticMethodA
<jbyte
>, // CallStaticByteMethodA
2653 _Jv_JNI_CallStaticMethod
<jchar
>, // CallStaticCharMethod
2654 _Jv_JNI_CallStaticMethodV
<jchar
>, // CallStaticCharMethodV
2655 _Jv_JNI_CallStaticMethodA
<jchar
>, // CallStaticCharMethodA
2656 _Jv_JNI_CallStaticMethod
<jshort
>, // CallStaticShortMethod
2657 _Jv_JNI_CallStaticMethodV
<jshort
>, // CallStaticShortMethodV
2658 _Jv_JNI_CallStaticMethodA
<jshort
>, // CallStaticShortMethodA
2659 _Jv_JNI_CallStaticMethod
<jint
>, // CallStaticIntMethod
2660 _Jv_JNI_CallStaticMethodV
<jint
>, // CallStaticIntMethodV
2661 _Jv_JNI_CallStaticMethodA
<jint
>, // CallStaticIntMethodA
2662 _Jv_JNI_CallStaticMethod
<jlong
>, // CallStaticLongMethod
2663 _Jv_JNI_CallStaticMethodV
<jlong
>, // CallStaticLongMethodV
2664 _Jv_JNI_CallStaticMethodA
<jlong
>, // CallStaticLongMethodA
2665 _Jv_JNI_CallStaticMethod
<jfloat
>, // CallStaticFloatMethod
2666 _Jv_JNI_CallStaticMethodV
<jfloat
>, // CallStaticFloatMethodV
2667 _Jv_JNI_CallStaticMethodA
<jfloat
>, // CallStaticFloatMethodA
2668 _Jv_JNI_CallStaticMethod
<jdouble
>, // CallStaticDoubleMethod
2669 _Jv_JNI_CallStaticMethodV
<jdouble
>, // CallStaticDoubleMethodV
2670 _Jv_JNI_CallStaticMethodA
<jdouble
>, // CallStaticDoubleMethodA
2671 _Jv_JNI_CallStaticVoidMethod
, // CallStaticVoidMethod
2672 _Jv_JNI_CallStaticVoidMethodV
, // CallStaticVoidMethodV
2673 _Jv_JNI_CallStaticVoidMethodA
, // CallStaticVoidMethodA
2675 _Jv_JNI_GetAnyFieldID
<true>, // GetStaticFieldID
2676 _Jv_JNI_GetStaticField
<jobject
>, // GetStaticObjectField
2677 _Jv_JNI_GetStaticField
<jboolean
>, // GetStaticBooleanField
2678 _Jv_JNI_GetStaticField
<jbyte
>, // GetStaticByteField
2679 _Jv_JNI_GetStaticField
<jchar
>, // GetStaticCharField
2680 _Jv_JNI_GetStaticField
<jshort
>, // GetStaticShortField
2681 _Jv_JNI_GetStaticField
<jint
>, // GetStaticIntField
2682 _Jv_JNI_GetStaticField
<jlong
>, // GetStaticLongField
2683 _Jv_JNI_GetStaticField
<jfloat
>, // GetStaticFloatField
2684 _Jv_JNI_GetStaticField
<jdouble
>, // GetStaticDoubleField
2685 _Jv_JNI_SetStaticField
, // SetStaticObjectField
2686 _Jv_JNI_SetStaticField
, // SetStaticBooleanField
2687 _Jv_JNI_SetStaticField
, // SetStaticByteField
2688 _Jv_JNI_SetStaticField
, // SetStaticCharField
2689 _Jv_JNI_SetStaticField
, // SetStaticShortField
2690 _Jv_JNI_SetStaticField
, // SetStaticIntField
2691 _Jv_JNI_SetStaticField
, // SetStaticLongField
2692 _Jv_JNI_SetStaticField
, // SetStaticFloatField
2693 _Jv_JNI_SetStaticField
, // SetStaticDoubleField
2694 _Jv_JNI_NewString
, // NewString
2695 _Jv_JNI_GetStringLength
, // GetStringLength
2696 _Jv_JNI_GetStringChars
, // GetStringChars
2697 _Jv_JNI_ReleaseStringChars
, // ReleaseStringChars
2698 _Jv_JNI_NewStringUTF
, // NewStringUTF
2699 _Jv_JNI_GetStringUTFLength
, // GetStringUTFLength
2700 _Jv_JNI_GetStringUTFChars
, // GetStringUTFChars
2701 _Jv_JNI_ReleaseStringUTFChars
, // ReleaseStringUTFChars
2702 _Jv_JNI_GetArrayLength
, // GetArrayLength
2703 _Jv_JNI_NewObjectArray
, // NewObjectArray
2704 _Jv_JNI_GetObjectArrayElement
, // GetObjectArrayElement
2705 _Jv_JNI_SetObjectArrayElement
, // SetObjectArrayElement
2706 _Jv_JNI_NewPrimitiveArray
<jboolean
, JvPrimClass (boolean
)>,
2708 _Jv_JNI_NewPrimitiveArray
<jbyte
, JvPrimClass (byte
)>, // NewByteArray
2709 _Jv_JNI_NewPrimitiveArray
<jchar
, JvPrimClass (char)>, // NewCharArray
2710 _Jv_JNI_NewPrimitiveArray
<jshort
, JvPrimClass (short)>, // NewShortArray
2711 _Jv_JNI_NewPrimitiveArray
<jint
, JvPrimClass (int)>, // NewIntArray
2712 _Jv_JNI_NewPrimitiveArray
<jlong
, JvPrimClass (long)>, // NewLongArray
2713 _Jv_JNI_NewPrimitiveArray
<jfloat
, JvPrimClass (float)>, // NewFloatArray
2714 _Jv_JNI_NewPrimitiveArray
<jdouble
, JvPrimClass (double)>, // NewDoubleArray
2715 _Jv_JNI_GetPrimitiveArrayElements
<jboolean
, JvPrimClass (boolean
)>,
2716 // GetBooleanArrayElements
2717 _Jv_JNI_GetPrimitiveArrayElements
<jbyte
, JvPrimClass (byte
)>,
2718 // GetByteArrayElements
2719 _Jv_JNI_GetPrimitiveArrayElements
<jchar
, JvPrimClass (char)>,
2720 // GetCharArrayElements
2721 _Jv_JNI_GetPrimitiveArrayElements
<jshort
, JvPrimClass (short)>,
2722 // GetShortArrayElements
2723 _Jv_JNI_GetPrimitiveArrayElements
<jint
, JvPrimClass (int)>,
2724 // GetIntArrayElements
2725 _Jv_JNI_GetPrimitiveArrayElements
<jlong
, JvPrimClass (long)>,
2726 // GetLongArrayElements
2727 _Jv_JNI_GetPrimitiveArrayElements
<jfloat
, JvPrimClass (float)>,
2728 // GetFloatArrayElements
2729 _Jv_JNI_GetPrimitiveArrayElements
<jdouble
, JvPrimClass (double)>,
2730 // GetDoubleArrayElements
2731 _Jv_JNI_ReleasePrimitiveArrayElements
<jboolean
, JvPrimClass (boolean
)>,
2732 // ReleaseBooleanArrayElements
2733 _Jv_JNI_ReleasePrimitiveArrayElements
<jbyte
, JvPrimClass (byte
)>,
2734 // ReleaseByteArrayElements
2735 _Jv_JNI_ReleasePrimitiveArrayElements
<jchar
, JvPrimClass (char)>,
2736 // ReleaseCharArrayElements
2737 _Jv_JNI_ReleasePrimitiveArrayElements
<jshort
, JvPrimClass (short)>,
2738 // ReleaseShortArrayElements
2739 _Jv_JNI_ReleasePrimitiveArrayElements
<jint
, JvPrimClass (int)>,
2740 // ReleaseIntArrayElements
2741 _Jv_JNI_ReleasePrimitiveArrayElements
<jlong
, JvPrimClass (long)>,
2742 // ReleaseLongArrayElements
2743 _Jv_JNI_ReleasePrimitiveArrayElements
<jfloat
, JvPrimClass (float)>,
2744 // ReleaseFloatArrayElements
2745 _Jv_JNI_ReleasePrimitiveArrayElements
<jdouble
, JvPrimClass (double)>,
2746 // ReleaseDoubleArrayElements
2747 _Jv_JNI_GetPrimitiveArrayRegion
<jboolean
, JvPrimClass (boolean
)>,
2748 // GetBooleanArrayRegion
2749 _Jv_JNI_GetPrimitiveArrayRegion
<jbyte
, JvPrimClass (byte
)>,
2750 // GetByteArrayRegion
2751 _Jv_JNI_GetPrimitiveArrayRegion
<jchar
, JvPrimClass (char)>,
2752 // GetCharArrayRegion
2753 _Jv_JNI_GetPrimitiveArrayRegion
<jshort
, JvPrimClass (short)>,
2754 // GetShortArrayRegion
2755 _Jv_JNI_GetPrimitiveArrayRegion
<jint
, JvPrimClass (int)>,
2756 // GetIntArrayRegion
2757 _Jv_JNI_GetPrimitiveArrayRegion
<jlong
, JvPrimClass (long)>,
2758 // GetLongArrayRegion
2759 _Jv_JNI_GetPrimitiveArrayRegion
<jfloat
, JvPrimClass (float)>,
2760 // GetFloatArrayRegion
2761 _Jv_JNI_GetPrimitiveArrayRegion
<jdouble
, JvPrimClass (double)>,
2762 // GetDoubleArrayRegion
2763 _Jv_JNI_SetPrimitiveArrayRegion
<jboolean
, JvPrimClass (boolean
)>,
2764 // SetBooleanArrayRegion
2765 _Jv_JNI_SetPrimitiveArrayRegion
<jbyte
, JvPrimClass (byte
)>,
2766 // SetByteArrayRegion
2767 _Jv_JNI_SetPrimitiveArrayRegion
<jchar
, JvPrimClass (char)>,
2768 // SetCharArrayRegion
2769 _Jv_JNI_SetPrimitiveArrayRegion
<jshort
, JvPrimClass (short)>,
2770 // SetShortArrayRegion
2771 _Jv_JNI_SetPrimitiveArrayRegion
<jint
, JvPrimClass (int)>,
2772 // SetIntArrayRegion
2773 _Jv_JNI_SetPrimitiveArrayRegion
<jlong
, JvPrimClass (long)>,
2774 // SetLongArrayRegion
2775 _Jv_JNI_SetPrimitiveArrayRegion
<jfloat
, JvPrimClass (float)>,
2776 // SetFloatArrayRegion
2777 _Jv_JNI_SetPrimitiveArrayRegion
<jdouble
, JvPrimClass (double)>,
2778 // SetDoubleArrayRegion
2779 _Jv_JNI_RegisterNatives
, // RegisterNatives
2780 _Jv_JNI_UnregisterNatives
, // UnregisterNatives
2781 _Jv_JNI_MonitorEnter
, // MonitorEnter
2782 _Jv_JNI_MonitorExit
, // MonitorExit
2783 _Jv_JNI_GetJavaVM
, // GetJavaVM
2785 _Jv_JNI_GetStringRegion
, // GetStringRegion
2786 _Jv_JNI_GetStringUTFRegion
, // GetStringUTFRegion
2787 _Jv_JNI_GetPrimitiveArrayCritical
, // GetPrimitiveArrayCritical
2788 _Jv_JNI_ReleasePrimitiveArrayCritical
, // ReleasePrimitiveArrayCritical
2789 _Jv_JNI_GetStringCritical
, // GetStringCritical
2790 _Jv_JNI_ReleaseStringCritical
, // ReleaseStringCritical
2792 _Jv_JNI_NewWeakGlobalRef
, // NewWeakGlobalRef
2793 _Jv_JNI_DeleteWeakGlobalRef
, // DeleteWeakGlobalRef
2795 _Jv_JNI_ExceptionCheck
, // ExceptionCheck
2797 _Jv_JNI_NewDirectByteBuffer
, // NewDirectByteBuffer
2798 _Jv_JNI_GetDirectBufferAddress
, // GetDirectBufferAddress
2799 _Jv_JNI_GetDirectBufferCapacity
// GetDirectBufferCapacity
2802 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions
=
2808 _Jv_JNI_DestroyJavaVM
,
2809 _Jv_JNI_AttachCurrentThread
,
2810 _Jv_JNI_DetachCurrentThread
,
2812 _Jv_JNI_AttachCurrentThreadAsDaemon