1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000, 2001 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
16 // Define this before including jni.h.
17 #define __GCJ_JNI_IMPL__
21 #include <java-assert.h>
27 #include <java/lang/Class.h>
28 #include <java/lang/ClassLoader.h>
29 #include <java/lang/Throwable.h>
30 #include <java/lang/ArrayIndexOutOfBoundsException.h>
31 #include <java/lang/StringIndexOutOfBoundsException.h>
32 #include <java/lang/AbstractMethodError.h>
33 #include <java/lang/InstantiationException.h>
34 #include <java/lang/NoSuchFieldError.h>
35 #include <java/lang/NoSuchMethodError.h>
36 #include <java/lang/reflect/Constructor.h>
37 #include <java/lang/reflect/Method.h>
38 #include <java/lang/reflect/Modifier.h>
39 #include <java/lang/OutOfMemoryError.h>
40 #include <java/util/Hashtable.h>
41 #include <java/lang/Integer.h>
42 #include <java/lang/ThreadGroup.h>
43 #include <gnu/gcj/jni/NativeThread.h>
45 #include <gcj/method.h>
46 #include <gcj/field.h>
48 #include <java-interp.h>
50 // FIXME: remove these defines.
51 #define ClassClass java::lang::Class::class$
52 #define ObjectClass java::lang::Object::class$
53 #define ThrowableClass java::lang::Throwable::class$
54 #define MethodClass java::lang::reflect::Method::class$
55 #define ThreadGroupClass java::lang::ThreadGroup::class$
56 #define NativeThreadClass gnu::gcj::jni::NativeThread::class$
58 // This enum is used to select different template instantiations in
59 // the invocation code.
68 // Forward declarations.
69 extern struct JNINativeInterface _Jv_JNIFunctions;
70 extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions;
72 // Number of slots in the default frame. The VM must allow at least
76 // Mark value indicating this is an overflow frame.
78 // Mark value indicating this is a user frame.
80 // Mark value indicating this is a system frame.
83 // This structure is used to keep track of local references.
84 struct _Jv_JNI_LocalFrame
86 // This is true if this frame object represents a pushed frame (eg
87 // from PushLocalFrame).
90 // Number of elements in frame.
93 // Next frame in chain.
94 _Jv_JNI_LocalFrame *next;
96 // The elements. These are allocated using the C "struct hack".
100 // This holds a reference count for all local and global references.
101 static java::util::Hashtable *ref_table;
104 static JavaVM *the_vm;
107 // The only JVMPI interface description.
108 static JVMPI_Interface _Jv_JVMPI_Interface;
111 jvmpiEnableEvent (jint event_type, void *)
115 case JVMPI_EVENT_OBJECT_ALLOC:
116 _Jv_JVMPI_Notify_OBJECT_ALLOC = _Jv_JVMPI_Interface.NotifyEvent;
119 case JVMPI_EVENT_THREAD_START:
120 _Jv_JVMPI_Notify_THREAD_START = _Jv_JVMPI_Interface.NotifyEvent;
123 case JVMPI_EVENT_THREAD_END:
124 _Jv_JVMPI_Notify_THREAD_END = _Jv_JVMPI_Interface.NotifyEvent;
128 return JVMPI_NOT_AVAILABLE;
131 return JVMPI_SUCCESS;
135 jvmpiDisableEvent (jint event_type, void *)
139 case JVMPI_EVENT_OBJECT_ALLOC:
140 _Jv_JVMPI_Notify_OBJECT_ALLOC = NULL;
144 return JVMPI_NOT_AVAILABLE;
147 return JVMPI_SUCCESS;
156 ref_table = new java::util::Hashtable;
159 _Jv_JVMPI_Interface.version = 1;
160 _Jv_JVMPI_Interface.EnableEvent = &jvmpiEnableEvent;
161 _Jv_JVMPI_Interface.DisableEvent = &jvmpiDisableEvent;
162 _Jv_JVMPI_Interface.EnableGC = &_Jv_EnableGC;
163 _Jv_JVMPI_Interface.DisableGC = &_Jv_DisableGC;
164 _Jv_JVMPI_Interface.RunGC = &_Jv_RunGC;
168 // Tell the GC that a certain pointer is live.
170 mark_for_gc (jobject obj)
172 JvSynchronize sync (ref_table);
174 using namespace java::lang;
175 Integer *refcount = (Integer *) ref_table->get (obj);
176 jint val = (refcount == NULL) ? 0 : refcount->intValue ();
177 // FIXME: what about out of memory error?
178 ref_table->put (obj, new Integer (val + 1));
183 unmark_for_gc (jobject obj)
185 JvSynchronize sync (ref_table);
187 using namespace java::lang;
188 Integer *refcount = (Integer *) ref_table->get (obj);
190 jint val = refcount->intValue () - 1;
192 ref_table->remove (obj);
194 // FIXME: what about out of memory error?
195 ref_table->put (obj, new Integer (val));
201 _Jv_JNI_NewGlobalRef (JNIEnv *, jobject obj)
208 _Jv_JNI_DeleteGlobalRef (JNIEnv *, jobject obj)
214 _Jv_JNI_DeleteLocalRef (JNIEnv *env, jobject obj)
216 _Jv_JNI_LocalFrame *frame;
218 for (frame = env->locals; frame != NULL; frame = frame->next)
220 for (int i = 0; i < FRAME_SIZE; ++i)
222 if (frame->vec[i] == obj)
224 frame->vec[i] = NULL;
230 // Don't go past a marked frame.
231 JvAssert (frame->marker == MARK_NONE);
238 _Jv_JNI_EnsureLocalCapacity (JNIEnv *env, jint size)
240 // It is easier to just always allocate a new frame of the requested
241 // size. This isn't the most efficient thing, but for now we don't
242 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
244 _Jv_JNI_LocalFrame *frame;
247 frame = (_Jv_JNI_LocalFrame *) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame)
248 + size * sizeof (jobject));
256 frame->marker = MARK_NONE;
258 memset (&frame->vec[0], 0, size * sizeof (jobject));
259 frame->next = env->locals;
266 _Jv_JNI_PushLocalFrame (JNIEnv *env, jint size)
268 jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
272 // The new frame is on top.
273 env->locals->marker = MARK_USER;
279 _Jv_JNI_NewLocalRef (JNIEnv *env, jobject obj)
281 // Try to find an open slot somewhere in the topmost frame.
282 _Jv_JNI_LocalFrame *frame = env->locals;
283 bool done = false, set = false;
284 while (frame != NULL && ! done)
286 for (int i = 0; i < frame->size; ++i)
287 if (frame->vec[i] == NULL)
298 // No slots, so we allocate a new frame. According to the spec
299 // we could just die here. FIXME: return value.
300 _Jv_JNI_EnsureLocalCapacity (env, 16);
301 // We know the first element of the new frame will be ok.
302 env->locals->vec[0] = obj;
310 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result, int stop)
312 _Jv_JNI_LocalFrame *rf = env->locals;
315 while (rf != NULL && ! done)
317 for (int i = 0; i < rf->size; ++i)
318 if (rf->vec[i] != NULL)
319 unmark_for_gc (rf->vec[i]);
321 // If the frame we just freed is the marker frame, we are done.
322 done = (rf->marker == stop);
324 _Jv_JNI_LocalFrame *n = rf->next;
325 // When N==NULL, we've reached the stack-allocated frame, and we
326 // must not free it. However, we must be sure to clear all its
327 // elements, since we might conceivably reuse it.
330 memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
338 return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
342 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result)
344 return _Jv_JNI_PopLocalFrame (env, result, MARK_USER);
347 // Pop a `system' frame from the stack. This is `extern "C"' as it is
348 // used by the compiler.
350 _Jv_JNI_PopSystemFrame (JNIEnv *env)
352 _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
356 jthrowable t = env->ex;
362 // This function is used from other template functions. It wraps the
363 // return value appropriately; we specialize it so that object returns
364 // are turned into local references.
367 wrap_value (JNIEnv *, T value)
374 wrap_value (JNIEnv *env, jobject value)
376 return value == NULL ? value : _Jv_JNI_NewLocalRef (env, value);
381 wrap_value (JNIEnv *env, jclass value)
383 return (value == NULL
385 : (jclass) _Jv_JNI_NewLocalRef (env, (jobject) value));
391 _Jv_JNI_GetVersion (JNIEnv *)
393 return JNI_VERSION_1_2;
397 _Jv_JNI_DefineClass (JNIEnv *env, jobject loader,
398 const jbyte *buf, jsize bufLen)
402 jbyteArray bytes = JvNewByteArray (bufLen);
404 jbyte *elts = elements (bytes);
405 memcpy (elts, buf, bufLen * sizeof (jbyte));
407 java::lang::ClassLoader *l
408 = reinterpret_cast<java::lang::ClassLoader *> (loader);
410 jclass result = l->defineClass (bytes, 0, bufLen);
411 return (jclass) wrap_value (env, result);
421 _Jv_JNI_FindClass (JNIEnv *env, const char *name)
423 // FIXME: assume that NAME isn't too long.
424 int len = strlen (name);
426 for (int i = 0; i <= len; ++i)
427 s[i] = (name[i] == '/') ? '.' : name[i];
432 // This might throw an out of memory exception.
433 jstring n = JvNewStringUTF (s);
435 java::lang::ClassLoader *loader = NULL;
436 if (env->klass != NULL)
437 loader = env->klass->getClassLoader ();
441 // FIXME: should use getBaseClassLoader, but we don't have that
443 loader = java::lang::ClassLoader::getSystemClassLoader ();
446 r = loader->loadClass (n);
453 return (jclass) wrap_value (env, r);
457 _Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
459 return (jclass) wrap_value (env, clazz->getSuperclass ());
463 _Jv_JNI_IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
465 return clazz1->isAssignableFrom (clazz2);
469 _Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
471 // We check in case the user did some funky cast.
472 JvAssert (obj != NULL && (&ThrowableClass)->isInstance (obj));
478 _Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
480 using namespace java::lang::reflect;
482 JvAssert ((&ThrowableClass)->isAssignableFrom (clazz));
487 JArray<jclass> *argtypes
488 = (JArray<jclass> *) JvNewObjectArray (1, &ClassClass, NULL);
490 jclass *elts = elements (argtypes);
491 elts[0] = &StringClass;
493 Constructor *cons = clazz->getConstructor (argtypes);
495 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
496 jobject *velts = elements (values);
497 velts[0] = JvNewStringUTF (message);
499 jobject obj = cons->newInstance (values);
501 env->ex = reinterpret_cast<jthrowable> (obj);
513 _Jv_JNI_ExceptionOccurred (JNIEnv *env)
515 return (jthrowable) wrap_value (env, env->ex);
519 _Jv_JNI_ExceptionDescribe (JNIEnv *env)
522 env->ex->printStackTrace();
526 _Jv_JNI_ExceptionClear (JNIEnv *env)
532 _Jv_JNI_ExceptionCheck (JNIEnv *env)
534 return env->ex != NULL;
538 _Jv_JNI_FatalError (JNIEnv *, const char *message)
546 _Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
552 _Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
555 using namespace java::lang::reflect;
559 JvAssert (clazz && ! clazz->isArray ());
560 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
561 env->ex = new java::lang::InstantiationException ();
564 // FIXME: will this work for String?
565 obj = JvAllocObject (clazz);
573 return wrap_value (env, obj);
577 _Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
580 return (jclass) wrap_value (env, obj->getClass());
584 _Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
586 return clazz->isInstance(obj);
592 // This section concerns method invocation.
595 template<jboolean is_static>
597 _Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
598 const char *name, const char *sig)
602 _Jv_InitClass (clazz);
604 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
606 // FIXME: assume that SIG isn't too long.
607 int len = strlen (sig);
609 for (int i = 0; i <= len; ++i)
610 s[i] = (sig[i] == '/') ? '.' : sig[i];
611 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) s, -1);
613 JvAssert (! clazz->isPrimitive());
615 using namespace java::lang::reflect;
617 while (clazz != NULL)
619 jint count = JvNumMethods (clazz);
620 jmethodID meth = JvGetFirstMethod (clazz);
622 for (jint i = 0; i < count; ++i)
624 if (((is_static && Modifier::isStatic (meth->accflags))
625 || (! is_static && ! Modifier::isStatic (meth->accflags)))
626 && _Jv_equalUtf8Consts (meth->name, name_u)
627 && _Jv_equalUtf8Consts (meth->signature, sig_u))
630 meth = meth->getNextMethod();
633 clazz = clazz->getSuperclass ();
636 env->ex = new java::lang::NoSuchMethodError ();
646 // This is a helper function which turns a va_list into an array of
647 // `jvalue's. It needs signature information in order to do its work.
648 // The array of values must already be allocated.
650 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
652 jclass *arg_elts = elements (arg_types);
653 for (int i = 0; i < arg_types->length; ++i)
655 if (arg_elts[i] == JvPrimClass (byte))
656 values[i].b = va_arg (vargs, jbyte);
657 else if (arg_elts[i] == JvPrimClass (short))
658 values[i].s = va_arg (vargs, jshort);
659 else if (arg_elts[i] == JvPrimClass (int))
660 values[i].i = va_arg (vargs, jint);
661 else if (arg_elts[i] == JvPrimClass (long))
662 values[i].j = va_arg (vargs, jlong);
663 else if (arg_elts[i] == JvPrimClass (float))
664 values[i].f = va_arg (vargs, jfloat);
665 else if (arg_elts[i] == JvPrimClass (double))
666 values[i].d = va_arg (vargs, jdouble);
667 else if (arg_elts[i] == JvPrimClass (boolean))
668 values[i].z = va_arg (vargs, jboolean);
669 else if (arg_elts[i] == JvPrimClass (char))
670 values[i].c = va_arg (vargs, jchar);
674 values[i].l = va_arg (vargs, jobject);
679 // This can call any sort of method: virtual, "nonvirtual", static, or
681 template<typename T, invocation_type style>
683 _Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
684 jmethodID id, va_list vargs)
687 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
689 jclass decl_class = klass ? klass : obj->getClass ();
690 JvAssert (decl_class != NULL);
693 JArray<jclass> *arg_types;
697 _Jv_GetTypesFromSignature (id, decl_class,
698 &arg_types, &return_type);
700 jvalue args[arg_types->length];
701 array_from_valist (args, arg_types, vargs);
703 // For constructors we need to pass the Class we are instantiating.
704 if (style == constructor)
708 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
709 style == constructor,
710 arg_types, args, &result);
715 // We cheat a little here. FIXME.
716 return wrap_value (env, * (T *) &result);
723 return wrap_value (env, (T) 0);
726 template<typename T, invocation_type style>
728 _Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
729 jmethodID method, ...)
734 va_start (args, method);
735 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
741 template<typename T, invocation_type style>
743 _Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
744 jmethodID id, jvalue *args)
747 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
749 jclass decl_class = klass ? klass : obj->getClass ();
750 JvAssert (decl_class != NULL);
753 JArray<jclass> *arg_types;
756 _Jv_GetTypesFromSignature (id, decl_class,
757 &arg_types, &return_type);
759 // For constructors we need to pass the Class we are instantiating.
760 if (style == constructor)
764 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
765 style == constructor,
766 arg_types, args, &result);
771 // We cheat a little here. FIXME.
772 return wrap_value (env, * (T *) &result);
779 return wrap_value (env, (T) 0);
782 template<invocation_type style>
784 _Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
785 jmethodID id, va_list vargs)
788 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
790 jclass decl_class = klass ? klass : obj->getClass ();
791 JvAssert (decl_class != NULL);
794 JArray<jclass> *arg_types;
797 _Jv_GetTypesFromSignature (id, decl_class,
798 &arg_types, &return_type);
800 jvalue args[arg_types->length];
801 array_from_valist (args, arg_types, vargs);
803 // For constructors we need to pass the Class we are instantiating.
804 if (style == constructor)
807 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
808 style == constructor,
809 arg_types, args, NULL);
820 template<invocation_type style>
822 _Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
823 jmethodID method, ...)
827 va_start (args, method);
828 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
832 template<invocation_type style>
834 _Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
835 jmethodID id, jvalue *args)
838 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
840 jclass decl_class = klass ? klass : obj->getClass ();
841 JvAssert (decl_class != NULL);
844 JArray<jclass> *arg_types;
847 _Jv_GetTypesFromSignature (id, decl_class,
848 &arg_types, &return_type);
850 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
851 style == constructor,
852 arg_types, args, NULL);
863 // Functions with this signature are used to implement functions in
864 // the CallMethod family.
867 _Jv_JNI_CallMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
869 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
872 // Functions with this signature are used to implement functions in
873 // the CallMethod family.
876 _Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
882 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
888 // Functions with this signature are used to implement functions in
889 // the CallMethod family.
892 _Jv_JNI_CallMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
894 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
898 _Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
900 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
904 _Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
909 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
914 _Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
916 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
919 // Functions with this signature are used to implement functions in
920 // the CallStaticMethod family.
923 _Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
924 jmethodID id, va_list args)
926 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
927 JvAssert ((&ClassClass)->isInstance (klass));
929 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
932 // Functions with this signature are used to implement functions in
933 // the CallStaticMethod family.
936 _Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
941 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
942 JvAssert ((&ClassClass)->isInstance (klass));
945 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
952 // Functions with this signature are used to implement functions in
953 // the CallStaticMethod family.
956 _Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
959 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
960 JvAssert ((&ClassClass)->isInstance (klass));
962 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
966 _Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass, jmethodID id,
969 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
973 _Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
978 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
983 _Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass, jmethodID id,
986 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
990 _Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
991 jmethodID id, va_list args)
993 JvAssert (klass && ! klass->isArray ());
994 JvAssert (! strcmp (id->name->data, "<init>")
995 && id->signature->length > 2
996 && id->signature->data[0] == '('
997 && ! strcmp (&id->signature->data[id->signature->length - 2],
1000 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1005 _Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
1007 JvAssert (klass && ! klass->isArray ());
1008 JvAssert (! strcmp (id->name->data, "<init>")
1009 && id->signature->length > 2
1010 && id->signature->data[0] == '('
1011 && ! strcmp (&id->signature->data[id->signature->length - 2],
1017 va_start (args, id);
1018 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1026 _Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
1029 JvAssert (klass && ! klass->isArray ());
1030 JvAssert (! strcmp (id->name->data, "<init>")
1031 && id->signature->length > 2
1032 && id->signature->data[0] == '('
1033 && ! strcmp (&id->signature->data[id->signature->length - 2],
1036 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
1042 template<typename T>
1044 _Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
1047 T *ptr = (T *) ((char *) obj + field->getOffset ());
1048 return wrap_value (env, *ptr);
1051 template<typename T>
1053 _Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
1056 T *ptr = (T *) ((char *) obj + field->getOffset ());
1060 template<jboolean is_static>
1062 _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
1063 const char *name, const char *sig)
1067 _Jv_InitClass (clazz);
1069 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
1071 // FIXME: assume that SIG isn't too long.
1072 int len = strlen (sig);
1074 for (int i = 0; i <= len; ++i)
1075 s[i] = (sig[i] == '/') ? '.' : sig[i];
1076 jclass field_class = _Jv_FindClassFromSignature ((char *) s, NULL);
1078 // FIXME: what if field_class == NULL?
1080 java::lang::ClassLoader *loader = clazz->getClassLoader ();
1081 while (clazz != NULL)
1083 // We acquire the class lock so that fields aren't resolved
1084 // while we are running.
1085 JvSynchronize sync (clazz);
1087 jint count = (is_static
1088 ? JvNumStaticFields (clazz)
1089 : JvNumInstanceFields (clazz));
1090 jfieldID field = (is_static
1091 ? JvGetFirstStaticField (clazz)
1092 : JvGetFirstInstanceField (clazz));
1093 for (jint i = 0; i < count; ++i)
1095 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
1097 // The field might be resolved or it might not be. It
1098 // is much simpler to always resolve it.
1099 _Jv_ResolveField (field, loader);
1100 if (_Jv_equalUtf8Consts (f_name, a_name)
1101 && field->getClass() == field_class)
1104 field = field->getNextField ();
1107 clazz = clazz->getSuperclass ();
1110 env->ex = new java::lang::NoSuchFieldError ();
1112 catch (jthrowable t)
1119 template<typename T>
1121 _Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
1123 T *ptr = (T *) field->u.addr;
1124 return wrap_value (env, *ptr);
1127 template<typename T>
1129 _Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
1131 T *ptr = (T *) field->u.addr;
1136 _Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
1140 jstring r = _Jv_NewString (unichars, len);
1141 return (jstring) wrap_value (env, r);
1143 catch (jthrowable t)
1151 _Jv_JNI_GetStringLength (JNIEnv *, jstring string)
1153 return string->length();
1156 static const jchar *
1157 _Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
1159 jchar *result = _Jv_GetStringChars (string);
1160 mark_for_gc (string);
1163 return (const jchar *) result;
1167 _Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
1169 unmark_for_gc (string);
1173 _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
1177 jstring result = JvNewStringUTF (bytes);
1178 return (jstring) wrap_value (env, result);
1180 catch (jthrowable t)
1188 _Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
1190 return JvGetStringUTFLength (string);
1194 _Jv_JNI_GetStringUTFChars (JNIEnv *env, jstring string, jboolean *isCopy)
1196 jsize len = JvGetStringUTFLength (string);
1199 char *r = (char *) _Jv_Malloc (len + 1);
1200 JvGetStringUTFRegion (string, 0, len, r);
1206 return (const char *) r;
1208 catch (jthrowable t)
1216 _Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
1218 _Jv_Free ((void *) utf);
1222 _Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start, jsize len,
1225 jchar *result = _Jv_GetStringChars (string);
1226 if (start < 0 || start > string->length ()
1227 || len < 0 || start + len > string->length ())
1231 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1233 catch (jthrowable t)
1239 memcpy (buf, &result[start], len * sizeof (jchar));
1243 _Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
1244 jsize len, char *buf)
1246 if (start < 0 || start > str->length ()
1247 || len < 0 || start + len > str->length ())
1251 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1253 catch (jthrowable t)
1259 _Jv_GetStringUTFRegion (str, start, len, buf);
1262 static const jchar *
1263 _Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
1265 jchar *result = _Jv_GetStringChars (str);
1272 _Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
1278 _Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
1280 return array->length;
1284 _Jv_JNI_NewObjectArray (JNIEnv *env, jsize length, jclass elementClass,
1289 jarray result = JvNewObjectArray (length, elementClass, init);
1290 return (jarray) wrap_value (env, result);
1292 catch (jthrowable t)
1300 _Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index)
1302 jobject *elts = elements (array);
1303 return wrap_value (env, elts[index]);
1307 _Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index,
1312 _Jv_CheckArrayStore (array, value);
1313 jobject *elts = elements (array);
1314 elts[index] = value;
1316 catch (jthrowable t)
1322 template<typename T, jclass K>
1324 _Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
1328 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1330 catch (jthrowable t)
1337 template<typename T>
1339 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1342 T *elts = elements (array);
1345 // We elect never to copy.
1348 mark_for_gc (array);
1352 template<typename T>
1354 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1355 T *, jint /* mode */)
1357 // Note that we ignore MODE. We can do this because we never copy
1358 // the array elements. My reading of the JNI documentation is that
1359 // this is an option for the implementor.
1360 unmark_for_gc (array);
1363 template<typename T>
1365 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1366 jsize start, jsize len,
1369 if (start < 0 || len >= array->length || start + len >= array->length)
1374 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1376 catch (jthrowable t)
1378 // Could have thown out of memory error.
1384 T *elts = elements (array) + start;
1385 memcpy (buf, elts, len * sizeof (T));
1389 template<typename T>
1391 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1392 jsize start, jsize len, T *buf)
1394 if (start < 0 || len >= array->length || start + len >= array->length)
1399 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1401 catch (jthrowable t)
1408 T *elts = elements (array) + start;
1409 memcpy (elts, buf, len * sizeof (T));
1414 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
1417 // FIXME: does this work?
1418 jclass klass = array->getClass()->getComponentType();
1419 JvAssert (klass->isPrimitive ());
1420 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1427 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
1433 _Jv_JNI_MonitorEnter (JNIEnv *env, jobject obj)
1437 return _Jv_MonitorEnter (obj);
1439 catch (jthrowable t)
1447 _Jv_JNI_MonitorExit (JNIEnv *env, jobject obj)
1451 return _Jv_MonitorExit (obj);
1453 catch (jthrowable t)
1462 _Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
1467 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1468 field->declaringClass = cls;
1469 field->offset = (char*) fieldID - (char *) cls->fields;
1470 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1471 return wrap_value (env, field);
1473 catch (jthrowable t)
1482 _Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
1484 using namespace java::lang::reflect;
1486 Field *field = reinterpret_cast<Field *> (f);
1487 return _Jv_FromReflectedField (field);
1491 _Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
1494 using namespace java::lang::reflect;
1497 static _Jv_Utf8Const *init_name = _Jv_makeUtf8Const ("<init>", 6);
1499 jobject result = NULL;
1503 if (_Jv_equalUtf8Consts (id->name, init_name))
1506 Constructor *cons = new Constructor ();
1507 cons->offset = (char *) id - (char *) &klass->methods;
1508 cons->declaringClass = klass;
1513 Method *meth = new Method ();
1514 meth->offset = (char *) id - (char *) &klass->methods;
1515 meth->declaringClass = klass;
1519 catch (jthrowable t)
1524 return wrap_value (env, result);
1528 _Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
1530 using namespace java::lang::reflect;
1531 if ((&MethodClass)->isInstance (method))
1532 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1534 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1538 _Jv_JNI_RegisterNatives (JNIEnv *env, jclass k,
1539 const JNINativeMethod *methods,
1543 // For now, this only matters for interpreted methods. FIXME.
1544 if (! _Jv_IsInterpretedClass (k))
1546 // FIXME: throw exception.
1549 _Jv_InterpClass *klass = reinterpret_cast<_Jv_InterpClass *> (k);
1551 // Look at each descriptor given us, and find the corresponding
1552 // method in the class.
1553 for (int j = 0; j < nMethods; ++j)
1557 _Jv_MethodBase **imeths = _Jv_GetFirstMethod (klass);
1558 for (int i = 0; i < JvNumMethods (klass); ++i)
1560 _Jv_MethodBase *meth = imeths[i];
1561 _Jv_Method *self = meth->get_method ();
1563 if (! strcmp (self->name->data, methods[j].name)
1564 && ! strcmp (self->signature->data, methods[j].signature))
1566 if (! (self->accflags
1567 & java::lang::reflect::Modifier::NATIVE))
1570 // Found a match that is native.
1571 _Jv_JNIMethod *jmeth = reinterpret_cast<_Jv_JNIMethod *> (meth);
1572 jmeth->set_function (methods[i].fnPtr);
1580 jstring m = JvNewStringUTF (methods[j].name);
1583 env->ex =new java::lang::NoSuchMethodError (m);
1585 catch (jthrowable t)
1594 #else /* INTERPRETER */
1596 #endif /* INTERPRETER */
1600 _Jv_JNI_UnregisterNatives (JNIEnv *, jclass)
1607 // Add a character to the buffer, encoding properly.
1609 add_char (char *buf, jchar c, int *here)
1613 buf[(*here)++] = '_';
1614 buf[(*here)++] = '1';
1618 buf[(*here)++] = '_';
1619 buf[(*here)++] = '2';
1623 buf[(*here)++] = '_';
1624 buf[(*here)++] = '3';
1627 // Also check for `.' here because we might be passed an internal
1628 // qualified class name like `foo.bar'.
1629 else if (c == '/' || c == '.')
1630 buf[(*here)++] = '_';
1631 else if ((c >= '0' && c <= '9')
1632 || (c >= 'a' && c <= 'z')
1633 || (c >= 'A' && c <= 'Z'))
1634 buf[(*here)++] = (char) c;
1637 // "Unicode" character.
1638 buf[(*here)++] = '_';
1639 buf[(*here)++] = '0';
1640 for (int i = 0; i < 4; ++i)
1643 buf[(*here) + 3 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1650 // Compute a mangled name for a native function. This computes the
1651 // long name, and also returns an index which indicates where a NUL
1652 // can be placed to create the short name. This function assumes that
1653 // the buffer is large enough for its results.
1655 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1656 _Jv_Utf8Const *signature, char *buf, int *long_start)
1658 strcpy (buf, "Java_");
1661 // Add fully qualified class name.
1662 jchar *chars = _Jv_GetStringChars (klass->getName ());
1663 jint len = klass->getName ()->length ();
1664 for (int i = 0; i < len; ++i)
1665 add_char (buf, chars[i], &here);
1667 // Don't use add_char because we need a literal `_'.
1670 const unsigned char *fn = (const unsigned char *) func_name->data;
1671 const unsigned char *limit = fn + func_name->length;
1672 for (int i = 0; ; ++i)
1674 int ch = UTF8_GET (fn, limit);
1677 add_char (buf, ch, &here);
1680 // This is where the long signature begins.
1685 const unsigned char *sig = (const unsigned char *) signature->data;
1686 limit = sig + signature->length;
1687 JvAssert (sig[0] == '(');
1691 int ch = UTF8_GET (sig, limit);
1692 if (ch == ')' || ch < 0)
1694 add_char (buf, ch, &here);
1700 // Return the current thread's JNIEnv; if one does not exist, create
1701 // it. Also create a new system frame for use. This is `extern "C"'
1702 // because the compiler calls it.
1704 _Jv_GetJNIEnvNewFrame (jclass klass)
1706 JNIEnv *env = _Jv_GetCurrentJNIEnv ();
1709 env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1710 env->p = &_Jv_JNIFunctions;
1715 _Jv_SetCurrentJNIEnv (env);
1718 _Jv_JNI_LocalFrame *frame
1719 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1721 * sizeof (jobject)));
1723 frame->marker = MARK_SYSTEM;
1724 frame->size = FRAME_SIZE;
1725 frame->next = env->locals;
1726 env->locals = frame;
1728 for (int i = 0; i < frame->size; ++i)
1729 frame->vec[i] = NULL;
1734 // Return the function which implements a particular JNI method. If
1735 // we can't find the function, we throw the appropriate exception.
1736 // This is `extern "C"' because the compiler uses it.
1738 _Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
1739 _Jv_Utf8Const *signature)
1741 char buf[10 + 6 * (name->length + signature->length)];
1745 mangled_name (klass, name, signature, buf, &long_start);
1746 char c = buf[long_start];
1747 buf[long_start] = '\0';
1748 function = _Jv_FindSymbolInExecutable (buf);
1749 if (function == NULL)
1751 buf[long_start] = c;
1752 function = _Jv_FindSymbolInExecutable (buf);
1753 if (function == NULL)
1755 jstring str = JvNewStringUTF (name->data);
1756 throw new java::lang::AbstractMethodError (str);
1765 // This function is the stub which is used to turn an ordinary (CNI)
1766 // method call into a JNI call.
1768 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
1770 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
1772 JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
1774 // FIXME: we should mark every reference parameter as a local. For
1775 // now we assume a conservative GC, and we assume that the
1776 // references are on the stack somewhere.
1778 // We cache the value that we find, of course, but if we don't find
1779 // a value we don't cache that fact -- we might subsequently load a
1780 // library which finds the function in question.
1781 if (_this->function == NULL)
1782 _this->function = _Jv_LookupJNIMethod (_this->defining_class,
1784 _this->self->signature);
1786 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
1787 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
1790 // First argument is always the environment pointer.
1791 real_args[offset++].ptr = env;
1793 // For a static method, we pass in the Class. For non-static
1794 // methods, the `this' argument is already handled.
1795 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
1796 real_args[offset++].ptr = _this->defining_class;
1798 // Copy over passed-in arguments.
1799 memcpy (&real_args[offset], args, _this->args_raw_size);
1801 // The actual call to the JNI function.
1802 ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
1805 _Jv_JNI_PopSystemFrame (env);
1808 #endif /* INTERPRETER */
1816 // An internal helper function.
1818 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv, void *args)
1820 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
1821 java::lang::ThreadGroup *group = NULL;
1825 // FIXME: do we really want to support 1.1?
1826 if (attach->version != JNI_VERSION_1_2
1827 && attach->version != JNI_VERSION_1_1)
1828 return JNI_EVERSION;
1830 JvAssert ((&ThreadGroupClass)->isInstance (attach->group));
1831 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
1834 // Attaching an already-attached thread is a no-op.
1835 if (_Jv_GetCurrentJNIEnv () != NULL)
1838 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1841 env->p = &_Jv_JNIFunctions;
1845 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1847 * sizeof (jobject)));
1848 if (env->locals == NULL)
1853 *penv = reinterpret_cast<void *> (env);
1855 // This thread might already be a Java thread -- this function might
1856 // have been called simply to set the new JNIEnv.
1857 if (_Jv_ThreadCurrent () == NULL)
1861 (void) new gnu::gcj::jni::NativeThread (group, name);
1863 catch (jthrowable t)
1868 _Jv_SetCurrentJNIEnv (env);
1873 // This is the one actually used by JNI.
1875 _Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
1877 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args);
1881 _Jv_JNI_DestroyJavaVM (JavaVM *vm)
1883 JvAssert (the_vm && vm == the_vm);
1886 if (_Jv_ThreadCurrent () != NULL)
1892 main_name = JvNewStringLatin1 ("main");
1894 catch (jthrowable t)
1899 jint r = _Jv_JNI_AttachCurrentThread (vm,
1901 reinterpret_cast<void **> (&env),
1907 env = _Jv_GetCurrentJNIEnv ();
1911 // Docs say that this always returns an error code.
1916 _Jv_JNI_DetachCurrentThread (JavaVM *)
1918 java::lang::Thread *t = _Jv_ThreadCurrent ();
1920 return JNI_EDETACHED;
1922 // FIXME: we only allow threads attached via AttachCurrentThread to
1923 // be detached. I have no idea how we could implement detaching
1924 // other threads, given the requirement that we must release all the
1925 // monitors. That just seems evil.
1926 JvAssert ((&NativeThreadClass)->isInstance (t));
1928 // FIXME: release the monitors. We'll take this to mean all
1929 // monitors acquired via the JNI interface. This means we have to
1930 // keep track of them.
1932 gnu::gcj::jni::NativeThread *nt
1933 = reinterpret_cast<gnu::gcj::jni::NativeThread *> (t);
1940 _Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
1942 if (_Jv_ThreadCurrent () == NULL)
1945 return JNI_EDETACHED;
1949 // Handle JVMPI requests.
1950 if (version == JVMPI_VERSION_1)
1952 *penv = (void *) &_Jv_JVMPI_Interface;
1957 // FIXME: do we really want to support 1.1?
1958 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_1)
1961 return JNI_EVERSION;
1964 *penv = (void *) _Jv_GetCurrentJNIEnv ();
1969 JNI_GetDefaultJavaVMInitArgs (void *args)
1971 jint version = * (jint *) args;
1972 // Here we only support 1.2.
1973 if (version != JNI_VERSION_1_2)
1974 return JNI_EVERSION;
1976 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1977 ia->version = JNI_VERSION_1_2;
1980 ia->ignoreUnrecognized = true;
1986 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
1988 JvAssert (! the_vm);
1989 // FIXME: synchronize
1990 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1993 nvm->functions = &_Jv_JNI_InvokeFunctions;
1995 // Parse the arguments.
1998 jint version = * (jint *) args;
1999 // We only support 1.2.
2000 if (version != JNI_VERSION_1_2)
2001 return JNI_EVERSION;
2002 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
2003 for (int i = 0; i < ia->nOptions; ++i)
2005 if (! strcmp (ia->options[i].optionString, "vfprintf")
2006 || ! strcmp (ia->options[i].optionString, "exit")
2007 || ! strcmp (ia->options[i].optionString, "abort"))
2009 // We are required to recognize these, but for now we
2010 // don't handle them in any way. FIXME.
2013 else if (! strncmp (ia->options[i].optionString,
2014 "-verbose", sizeof ("-verbose") - 1))
2016 // We don't do anything with this option either. We
2017 // might want to make sure the argument is valid, but we
2018 // don't really care all that much for now.
2021 else if (! strncmp (ia->options[i].optionString, "-D", 2))
2026 else if (ia->ignoreUnrecognized)
2028 if (ia->options[i].optionString[0] == '_'
2029 || ! strncmp (ia->options[i].optionString, "-X", 2))
2037 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
2047 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
2052 // We only support a single VM.
2055 vm_buffer[0] = the_vm;
2066 // FIXME: synchronize
2069 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2071 nvm->functions = &_Jv_JNI_InvokeFunctions;
2075 // If this is a Java thread, we want to make sure it has an
2076 // associated JNIEnv.
2077 if (_Jv_ThreadCurrent () != NULL)
2080 _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
2087 _Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
2089 *vm = _Jv_GetJavaVM ();
2090 return *vm == NULL ? JNI_ERR : JNI_OK;
2095 #define NOT_IMPL NULL
2096 #define RESERVED NULL
2098 struct JNINativeInterface _Jv_JNIFunctions =
2104 _Jv_JNI_GetVersion, // GetVersion
2105 _Jv_JNI_DefineClass, // DefineClass
2106 _Jv_JNI_FindClass, // FindClass
2107 _Jv_JNI_FromReflectedMethod, // FromReflectedMethod
2108 _Jv_JNI_FromReflectedField, // FromReflectedField
2109 _Jv_JNI_ToReflectedMethod, // ToReflectedMethod
2110 _Jv_JNI_GetSuperclass, // GetSuperclass
2111 _Jv_JNI_IsAssignableFrom, // IsAssignableFrom
2112 _Jv_JNI_ToReflectedField, // ToReflectedField
2113 _Jv_JNI_Throw, // Throw
2114 _Jv_JNI_ThrowNew, // ThrowNew
2115 _Jv_JNI_ExceptionOccurred, // ExceptionOccurred
2116 _Jv_JNI_ExceptionDescribe, // ExceptionDescribe
2117 _Jv_JNI_ExceptionClear, // ExceptionClear
2118 _Jv_JNI_FatalError, // FatalError
2120 _Jv_JNI_PushLocalFrame, // PushLocalFrame
2121 _Jv_JNI_PopLocalFrame, // PopLocalFrame
2122 _Jv_JNI_NewGlobalRef, // NewGlobalRef
2123 _Jv_JNI_DeleteGlobalRef, // DeleteGlobalRef
2124 _Jv_JNI_DeleteLocalRef, // DeleteLocalRef
2126 _Jv_JNI_IsSameObject, // IsSameObject
2128 _Jv_JNI_NewLocalRef, // NewLocalRef
2129 _Jv_JNI_EnsureLocalCapacity, // EnsureLocalCapacity
2131 _Jv_JNI_AllocObject, // AllocObject
2132 _Jv_JNI_NewObject, // NewObject
2133 _Jv_JNI_NewObjectV, // NewObjectV
2134 _Jv_JNI_NewObjectA, // NewObjectA
2135 _Jv_JNI_GetObjectClass, // GetObjectClass
2136 _Jv_JNI_IsInstanceOf, // IsInstanceOf
2137 _Jv_JNI_GetAnyMethodID<false>, // GetMethodID
2139 _Jv_JNI_CallMethod<jobject>, // CallObjectMethod
2140 _Jv_JNI_CallMethodV<jobject>, // CallObjectMethodV
2141 _Jv_JNI_CallMethodA<jobject>, // CallObjectMethodA
2142 _Jv_JNI_CallMethod<jboolean>, // CallBooleanMethod
2143 _Jv_JNI_CallMethodV<jboolean>, // CallBooleanMethodV
2144 _Jv_JNI_CallMethodA<jboolean>, // CallBooleanMethodA
2145 _Jv_JNI_CallMethod<jbyte>, // CallByteMethod
2146 _Jv_JNI_CallMethodV<jbyte>, // CallByteMethodV
2147 _Jv_JNI_CallMethodA<jbyte>, // CallByteMethodA
2148 _Jv_JNI_CallMethod<jchar>, // CallCharMethod
2149 _Jv_JNI_CallMethodV<jchar>, // CallCharMethodV
2150 _Jv_JNI_CallMethodA<jchar>, // CallCharMethodA
2151 _Jv_JNI_CallMethod<jshort>, // CallShortMethod
2152 _Jv_JNI_CallMethodV<jshort>, // CallShortMethodV
2153 _Jv_JNI_CallMethodA<jshort>, // CallShortMethodA
2154 _Jv_JNI_CallMethod<jint>, // CallIntMethod
2155 _Jv_JNI_CallMethodV<jint>, // CallIntMethodV
2156 _Jv_JNI_CallMethodA<jint>, // CallIntMethodA
2157 _Jv_JNI_CallMethod<jlong>, // CallLongMethod
2158 _Jv_JNI_CallMethodV<jlong>, // CallLongMethodV
2159 _Jv_JNI_CallMethodA<jlong>, // CallLongMethodA
2160 _Jv_JNI_CallMethod<jfloat>, // CallFloatMethod
2161 _Jv_JNI_CallMethodV<jfloat>, // CallFloatMethodV
2162 _Jv_JNI_CallMethodA<jfloat>, // CallFloatMethodA
2163 _Jv_JNI_CallMethod<jdouble>, // CallDoubleMethod
2164 _Jv_JNI_CallMethodV<jdouble>, // CallDoubleMethodV
2165 _Jv_JNI_CallMethodA<jdouble>, // CallDoubleMethodA
2166 _Jv_JNI_CallVoidMethod, // CallVoidMethod
2167 _Jv_JNI_CallVoidMethodV, // CallVoidMethodV
2168 _Jv_JNI_CallVoidMethodA, // CallVoidMethodA
2170 // Nonvirtual method invocation functions follow.
2171 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>, // CallNonvirtualObjectMethod
2172 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>, // CallNonvirtualObjectMethodV
2173 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>, // CallNonvirtualObjectMethodA
2174 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>, // CallNonvirtualBooleanMethod
2175 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodV
2176 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodA
2177 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>, // CallNonvirtualByteMethod
2178 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>, // CallNonvirtualByteMethodV
2179 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>, // CallNonvirtualByteMethodA
2180 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>, // CallNonvirtualCharMethod
2181 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>, // CallNonvirtualCharMethodV
2182 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>, // CallNonvirtualCharMethodA
2183 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>, // CallNonvirtualShortMethod
2184 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>, // CallNonvirtualShortMethodV
2185 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>, // CallNonvirtualShortMethodA
2186 _Jv_JNI_CallAnyMethod<jint, nonvirtual>, // CallNonvirtualIntMethod
2187 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>, // CallNonvirtualIntMethodV
2188 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>, // CallNonvirtualIntMethodA
2189 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>, // CallNonvirtualLongMethod
2190 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>, // CallNonvirtualLongMethodV
2191 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>, // CallNonvirtualLongMethodA
2192 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>, // CallNonvirtualFloatMethod
2193 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>, // CallNonvirtualFloatMethodV
2194 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>, // CallNonvirtualFloatMethodA
2195 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>, // CallNonvirtualDoubleMethod
2196 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodV
2197 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodA
2198 _Jv_JNI_CallAnyVoidMethod<nonvirtual>, // CallNonvirtualVoidMethod
2199 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>, // CallNonvirtualVoidMethodV
2200 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>, // CallNonvirtualVoidMethodA
2202 _Jv_JNI_GetAnyFieldID<false>, // GetFieldID
2203 _Jv_JNI_GetField<jobject>, // GetObjectField
2204 _Jv_JNI_GetField<jboolean>, // GetBooleanField
2205 _Jv_JNI_GetField<jbyte>, // GetByteField
2206 _Jv_JNI_GetField<jchar>, // GetCharField
2207 _Jv_JNI_GetField<jshort>, // GetShortField
2208 _Jv_JNI_GetField<jint>, // GetIntField
2209 _Jv_JNI_GetField<jlong>, // GetLongField
2210 _Jv_JNI_GetField<jfloat>, // GetFloatField
2211 _Jv_JNI_GetField<jdouble>, // GetDoubleField
2212 _Jv_JNI_SetField, // SetObjectField
2213 _Jv_JNI_SetField, // SetBooleanField
2214 _Jv_JNI_SetField, // SetByteField
2215 _Jv_JNI_SetField, // SetCharField
2216 _Jv_JNI_SetField, // SetShortField
2217 _Jv_JNI_SetField, // SetIntField
2218 _Jv_JNI_SetField, // SetLongField
2219 _Jv_JNI_SetField, // SetFloatField
2220 _Jv_JNI_SetField, // SetDoubleField
2221 _Jv_JNI_GetAnyMethodID<true>, // GetStaticMethodID
2223 _Jv_JNI_CallStaticMethod<jobject>, // CallStaticObjectMethod
2224 _Jv_JNI_CallStaticMethodV<jobject>, // CallStaticObjectMethodV
2225 _Jv_JNI_CallStaticMethodA<jobject>, // CallStaticObjectMethodA
2226 _Jv_JNI_CallStaticMethod<jboolean>, // CallStaticBooleanMethod
2227 _Jv_JNI_CallStaticMethodV<jboolean>, // CallStaticBooleanMethodV
2228 _Jv_JNI_CallStaticMethodA<jboolean>, // CallStaticBooleanMethodA
2229 _Jv_JNI_CallStaticMethod<jbyte>, // CallStaticByteMethod
2230 _Jv_JNI_CallStaticMethodV<jbyte>, // CallStaticByteMethodV
2231 _Jv_JNI_CallStaticMethodA<jbyte>, // CallStaticByteMethodA
2232 _Jv_JNI_CallStaticMethod<jchar>, // CallStaticCharMethod
2233 _Jv_JNI_CallStaticMethodV<jchar>, // CallStaticCharMethodV
2234 _Jv_JNI_CallStaticMethodA<jchar>, // CallStaticCharMethodA
2235 _Jv_JNI_CallStaticMethod<jshort>, // CallStaticShortMethod
2236 _Jv_JNI_CallStaticMethodV<jshort>, // CallStaticShortMethodV
2237 _Jv_JNI_CallStaticMethodA<jshort>, // CallStaticShortMethodA
2238 _Jv_JNI_CallStaticMethod<jint>, // CallStaticIntMethod
2239 _Jv_JNI_CallStaticMethodV<jint>, // CallStaticIntMethodV
2240 _Jv_JNI_CallStaticMethodA<jint>, // CallStaticIntMethodA
2241 _Jv_JNI_CallStaticMethod<jlong>, // CallStaticLongMethod
2242 _Jv_JNI_CallStaticMethodV<jlong>, // CallStaticLongMethodV
2243 _Jv_JNI_CallStaticMethodA<jlong>, // CallStaticLongMethodA
2244 _Jv_JNI_CallStaticMethod<jfloat>, // CallStaticFloatMethod
2245 _Jv_JNI_CallStaticMethodV<jfloat>, // CallStaticFloatMethodV
2246 _Jv_JNI_CallStaticMethodA<jfloat>, // CallStaticFloatMethodA
2247 _Jv_JNI_CallStaticMethod<jdouble>, // CallStaticDoubleMethod
2248 _Jv_JNI_CallStaticMethodV<jdouble>, // CallStaticDoubleMethodV
2249 _Jv_JNI_CallStaticMethodA<jdouble>, // CallStaticDoubleMethodA
2250 _Jv_JNI_CallStaticVoidMethod, // CallStaticVoidMethod
2251 _Jv_JNI_CallStaticVoidMethodV, // CallStaticVoidMethodV
2252 _Jv_JNI_CallStaticVoidMethodA, // CallStaticVoidMethodA
2254 _Jv_JNI_GetAnyFieldID<true>, // GetStaticFieldID
2255 _Jv_JNI_GetStaticField<jobject>, // GetStaticObjectField
2256 _Jv_JNI_GetStaticField<jboolean>, // GetStaticBooleanField
2257 _Jv_JNI_GetStaticField<jbyte>, // GetStaticByteField
2258 _Jv_JNI_GetStaticField<jchar>, // GetStaticCharField
2259 _Jv_JNI_GetStaticField<jshort>, // GetStaticShortField
2260 _Jv_JNI_GetStaticField<jint>, // GetStaticIntField
2261 _Jv_JNI_GetStaticField<jlong>, // GetStaticLongField
2262 _Jv_JNI_GetStaticField<jfloat>, // GetStaticFloatField
2263 _Jv_JNI_GetStaticField<jdouble>, // GetStaticDoubleField
2264 _Jv_JNI_SetStaticField, // SetStaticObjectField
2265 _Jv_JNI_SetStaticField, // SetStaticBooleanField
2266 _Jv_JNI_SetStaticField, // SetStaticByteField
2267 _Jv_JNI_SetStaticField, // SetStaticCharField
2268 _Jv_JNI_SetStaticField, // SetStaticShortField
2269 _Jv_JNI_SetStaticField, // SetStaticIntField
2270 _Jv_JNI_SetStaticField, // SetStaticLongField
2271 _Jv_JNI_SetStaticField, // SetStaticFloatField
2272 _Jv_JNI_SetStaticField, // SetStaticDoubleField
2273 _Jv_JNI_NewString, // NewString
2274 _Jv_JNI_GetStringLength, // GetStringLength
2275 _Jv_JNI_GetStringChars, // GetStringChars
2276 _Jv_JNI_ReleaseStringChars, // ReleaseStringChars
2277 _Jv_JNI_NewStringUTF, // NewStringUTF
2278 _Jv_JNI_GetStringUTFLength, // GetStringUTFLength
2279 _Jv_JNI_GetStringUTFChars, // GetStringUTFLength
2280 _Jv_JNI_ReleaseStringUTFChars, // ReleaseStringUTFChars
2281 _Jv_JNI_GetArrayLength, // GetArrayLength
2282 _Jv_JNI_NewObjectArray, // NewObjectArray
2283 _Jv_JNI_GetObjectArrayElement, // GetObjectArrayElement
2284 _Jv_JNI_SetObjectArrayElement, // SetObjectArrayElement
2285 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
2287 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>, // NewByteArray
2288 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>, // NewCharArray
2289 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>, // NewShortArray
2290 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>, // NewIntArray
2291 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>, // NewLongArray
2292 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>, // NewFloatArray
2293 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>, // NewDoubleArray
2294 _Jv_JNI_GetPrimitiveArrayElements, // GetBooleanArrayElements
2295 _Jv_JNI_GetPrimitiveArrayElements, // GetByteArrayElements
2296 _Jv_JNI_GetPrimitiveArrayElements, // GetCharArrayElements
2297 _Jv_JNI_GetPrimitiveArrayElements, // GetShortArrayElements
2298 _Jv_JNI_GetPrimitiveArrayElements, // GetIntArrayElements
2299 _Jv_JNI_GetPrimitiveArrayElements, // GetLongArrayElements
2300 _Jv_JNI_GetPrimitiveArrayElements, // GetFloatArrayElements
2301 _Jv_JNI_GetPrimitiveArrayElements, // GetDoubleArrayElements
2302 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseBooleanArrayElements
2303 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseByteArrayElements
2304 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseCharArrayElements
2305 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseShortArrayElements
2306 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseIntArrayElements
2307 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseLongArrayElements
2308 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseFloatArrayElements
2309 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseDoubleArrayElements
2310 _Jv_JNI_GetPrimitiveArrayRegion, // GetBooleanArrayRegion
2311 _Jv_JNI_GetPrimitiveArrayRegion, // GetByteArrayRegion
2312 _Jv_JNI_GetPrimitiveArrayRegion, // GetCharArrayRegion
2313 _Jv_JNI_GetPrimitiveArrayRegion, // GetShortArrayRegion
2314 _Jv_JNI_GetPrimitiveArrayRegion, // GetIntArrayRegion
2315 _Jv_JNI_GetPrimitiveArrayRegion, // GetLongArrayRegion
2316 _Jv_JNI_GetPrimitiveArrayRegion, // GetFloatArrayRegion
2317 _Jv_JNI_GetPrimitiveArrayRegion, // GetDoubleArrayRegion
2318 _Jv_JNI_SetPrimitiveArrayRegion, // SetBooleanArrayRegion
2319 _Jv_JNI_SetPrimitiveArrayRegion, // SetByteArrayRegion
2320 _Jv_JNI_SetPrimitiveArrayRegion, // SetCharArrayRegion
2321 _Jv_JNI_SetPrimitiveArrayRegion, // SetShortArrayRegion
2322 _Jv_JNI_SetPrimitiveArrayRegion, // SetIntArrayRegion
2323 _Jv_JNI_SetPrimitiveArrayRegion, // SetLongArrayRegion
2324 _Jv_JNI_SetPrimitiveArrayRegion, // SetFloatArrayRegion
2325 _Jv_JNI_SetPrimitiveArrayRegion, // SetDoubleArrayRegion
2326 _Jv_JNI_RegisterNatives, // RegisterNatives
2327 _Jv_JNI_UnregisterNatives, // UnregisterNatives
2328 _Jv_JNI_MonitorEnter, // MonitorEnter
2329 _Jv_JNI_MonitorExit, // MonitorExit
2330 _Jv_JNI_GetJavaVM, // GetJavaVM
2332 _Jv_JNI_GetStringRegion, // GetStringRegion
2333 _Jv_JNI_GetStringUTFRegion, // GetStringUTFRegion
2334 _Jv_JNI_GetPrimitiveArrayCritical, // GetPrimitiveArrayCritical
2335 _Jv_JNI_ReleasePrimitiveArrayCritical, // ReleasePrimitiveArrayCritical
2336 _Jv_JNI_GetStringCritical, // GetStringCritical
2337 _Jv_JNI_ReleaseStringCritical, // ReleaseStringCritical
2339 NOT_IMPL /* newweakglobalref */,
2340 NOT_IMPL /* deleteweakglobalref */,
2342 _Jv_JNI_ExceptionCheck
2345 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
2351 _Jv_JNI_DestroyJavaVM,
2352 _Jv_JNI_AttachCurrentThread,
2353 _Jv_JNI_DetachCurrentThread,