1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000 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);
382 _Jv_JNI_GetVersion (JNIEnv *)
384 return JNI_VERSION_1_2;
388 _Jv_JNI_DefineClass (JNIEnv *env, jobject loader,
389 const jbyte *buf, jsize bufLen)
393 jbyteArray bytes = JvNewByteArray (bufLen);
395 jbyte *elts = elements (bytes);
396 memcpy (elts, buf, bufLen * sizeof (jbyte));
398 java::lang::ClassLoader *l
399 = reinterpret_cast<java::lang::ClassLoader *> (loader);
401 jclass result = l->defineClass (bytes, 0, bufLen);
402 return (jclass) wrap_value (env, result);
412 _Jv_JNI_FindClass (JNIEnv *env, const char *name)
414 // FIXME: assume that NAME isn't too long.
415 int len = strlen (name);
417 for (int i = 0; i <= len; ++i)
418 s[i] = (name[i] == '/') ? '.' : name[i];
423 // This might throw an out of memory exception.
424 jstring n = JvNewStringUTF (s);
426 java::lang::ClassLoader *loader = NULL;
427 if (env->klass != NULL)
428 loader = env->klass->getClassLoader ();
432 // FIXME: should use getBaseClassLoader, but we don't have that
434 loader = java::lang::ClassLoader::getSystemClassLoader ();
437 r = loader->loadClass (n);
444 return (jclass) wrap_value (env, r);
448 _Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
450 return (jclass) wrap_value (env, clazz->getSuperclass ());
454 _Jv_JNI_IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
456 return clazz1->isAssignableFrom (clazz2);
460 _Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
462 // We check in case the user did some funky cast.
463 JvAssert (obj != NULL && (&ThrowableClass)->isInstance (obj));
469 _Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
471 using namespace java::lang::reflect;
473 JvAssert ((&ThrowableClass)->isAssignableFrom (clazz));
478 JArray<jclass> *argtypes
479 = (JArray<jclass> *) JvNewObjectArray (1, &ClassClass, NULL);
481 jclass *elts = elements (argtypes);
482 elts[0] = &StringClass;
484 Constructor *cons = clazz->getConstructor (argtypes);
486 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
487 jobject *velts = elements (values);
488 velts[0] = JvNewStringUTF (message);
490 jobject obj = cons->newInstance (values);
492 env->ex = reinterpret_cast<jthrowable> (obj);
504 _Jv_JNI_ExceptionOccurred (JNIEnv *env)
506 return (jthrowable) wrap_value (env, env->ex);
510 _Jv_JNI_ExceptionDescribe (JNIEnv *env)
513 env->ex->printStackTrace();
517 _Jv_JNI_ExceptionClear (JNIEnv *env)
523 _Jv_JNI_ExceptionCheck (JNIEnv *env)
525 return env->ex != NULL;
529 _Jv_JNI_FatalError (JNIEnv *, const char *message)
537 _Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
543 _Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
546 using namespace java::lang::reflect;
550 JvAssert (clazz && ! clazz->isArray ());
551 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
552 env->ex = new java::lang::InstantiationException ();
555 // FIXME: will this work for String?
556 obj = JvAllocObject (clazz);
564 return wrap_value (env, obj);
568 _Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
571 return (jclass) wrap_value (env, obj->getClass());
575 _Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
577 return clazz->isInstance(obj);
583 // This section concerns method invocation.
586 template<jboolean is_static>
588 _Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
589 const char *name, const char *sig)
593 _Jv_InitClass (clazz);
595 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
596 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
598 JvAssert (! clazz->isPrimitive());
600 using namespace java::lang::reflect;
602 while (clazz != NULL)
604 jint count = JvNumMethods (clazz);
605 jmethodID meth = JvGetFirstMethod (clazz);
607 for (jint i = 0; i < count; ++i)
609 if (((is_static && Modifier::isStatic (meth->accflags))
610 || (! is_static && ! Modifier::isStatic (meth->accflags)))
611 && _Jv_equalUtf8Consts (meth->name, name_u)
612 && _Jv_equalUtf8Consts (meth->signature, sig_u))
615 meth = meth->getNextMethod();
618 clazz = clazz->getSuperclass ();
621 env->ex = new java::lang::NoSuchMethodError ();
631 // This is a helper function which turns a va_list into an array of
632 // `jvalue's. It needs signature information in order to do its work.
633 // The array of values must already be allocated.
635 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
637 jclass *arg_elts = elements (arg_types);
638 for (int i = 0; i < arg_types->length; ++i)
640 if (arg_elts[i] == JvPrimClass (byte))
641 values[i].b = va_arg (vargs, jbyte);
642 else if (arg_elts[i] == JvPrimClass (short))
643 values[i].s = va_arg (vargs, jshort);
644 else if (arg_elts[i] == JvPrimClass (int))
645 values[i].i = va_arg (vargs, jint);
646 else if (arg_elts[i] == JvPrimClass (long))
647 values[i].j = va_arg (vargs, jlong);
648 else if (arg_elts[i] == JvPrimClass (float))
649 values[i].f = va_arg (vargs, jfloat);
650 else if (arg_elts[i] == JvPrimClass (double))
651 values[i].d = va_arg (vargs, jdouble);
652 else if (arg_elts[i] == JvPrimClass (boolean))
653 values[i].z = va_arg (vargs, jboolean);
654 else if (arg_elts[i] == JvPrimClass (char))
655 values[i].c = va_arg (vargs, jchar);
659 values[i].l = va_arg (vargs, jobject);
664 // This can call any sort of method: virtual, "nonvirtual", static, or
666 template<typename T, invocation_type style>
668 _Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
669 jmethodID id, va_list vargs)
672 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
674 jclass decl_class = klass ? klass : obj->getClass ();
675 JvAssert (decl_class != NULL);
678 JArray<jclass> *arg_types;
682 _Jv_GetTypesFromSignature (id, decl_class,
683 &arg_types, &return_type);
685 jvalue args[arg_types->length];
686 array_from_valist (args, arg_types, vargs);
688 // For constructors we need to pass the Class we are instantiating.
689 if (style == constructor)
693 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
694 style == constructor,
695 arg_types, args, &result);
700 // We cheat a little here. FIXME.
701 return wrap_value (env, * (T *) &result);
708 return wrap_value (env, (T) 0);
711 template<typename T, invocation_type style>
713 _Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
714 jmethodID method, ...)
719 va_start (args, method);
720 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
726 template<typename T, invocation_type style>
728 _Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
729 jmethodID id, jvalue *args)
732 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
734 jclass decl_class = klass ? klass : obj->getClass ();
735 JvAssert (decl_class != NULL);
738 JArray<jclass> *arg_types;
741 _Jv_GetTypesFromSignature (id, decl_class,
742 &arg_types, &return_type);
744 // For constructors we need to pass the Class we are instantiating.
745 if (style == constructor)
749 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
750 style == constructor,
751 arg_types, args, &result);
756 // We cheat a little here. FIXME.
757 return wrap_value (env, * (T *) &result);
764 return wrap_value (env, (T) 0);
767 template<invocation_type style>
769 _Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
770 jmethodID id, va_list vargs)
773 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
775 jclass decl_class = klass ? klass : obj->getClass ();
776 JvAssert (decl_class != NULL);
779 JArray<jclass> *arg_types;
782 _Jv_GetTypesFromSignature (id, decl_class,
783 &arg_types, &return_type);
785 jvalue args[arg_types->length];
786 array_from_valist (args, arg_types, vargs);
788 // For constructors we need to pass the Class we are instantiating.
789 if (style == constructor)
792 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
793 style == constructor,
794 arg_types, args, NULL);
805 template<invocation_type style>
807 _Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
808 jmethodID method, ...)
812 va_start (args, method);
813 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
817 template<invocation_type style>
819 _Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
820 jmethodID id, jvalue *args)
823 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
825 jclass decl_class = klass ? klass : obj->getClass ();
826 JvAssert (decl_class != NULL);
829 JArray<jclass> *arg_types;
832 _Jv_GetTypesFromSignature (id, decl_class,
833 &arg_types, &return_type);
835 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
836 style == constructor,
837 arg_types, args, NULL);
848 // Functions with this signature are used to implement functions in
849 // the CallMethod family.
852 _Jv_JNI_CallMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
854 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
857 // Functions with this signature are used to implement functions in
858 // the CallMethod family.
861 _Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
867 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
873 // Functions with this signature are used to implement functions in
874 // the CallMethod family.
877 _Jv_JNI_CallMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
879 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
883 _Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
885 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
889 _Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
894 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
899 _Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
901 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
904 // Functions with this signature are used to implement functions in
905 // the CallStaticMethod family.
908 _Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
909 jmethodID id, va_list args)
911 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
912 JvAssert ((&ClassClass)->isInstance (klass));
914 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
917 // Functions with this signature are used to implement functions in
918 // the CallStaticMethod family.
921 _Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
926 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
927 JvAssert ((&ClassClass)->isInstance (klass));
930 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
937 // Functions with this signature are used to implement functions in
938 // the CallStaticMethod family.
941 _Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
944 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
945 JvAssert ((&ClassClass)->isInstance (klass));
947 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
951 _Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass, jmethodID id,
954 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
958 _Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
963 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
968 _Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass, jmethodID id,
971 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
975 _Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
976 jmethodID id, va_list args)
978 JvAssert (klass && ! klass->isArray ());
979 JvAssert (! strcmp (id->name->data, "<init>")
980 && id->signature->length > 2
981 && id->signature->data[0] == '('
982 && ! strcmp (&id->signature->data[id->signature->length - 2],
985 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
990 _Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
992 JvAssert (klass && ! klass->isArray ());
993 JvAssert (! strcmp (id->name->data, "<init>")
994 && id->signature->length > 2
995 && id->signature->data[0] == '('
996 && ! strcmp (&id->signature->data[id->signature->length - 2],
1002 va_start (args, id);
1003 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1011 _Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
1014 JvAssert (klass && ! klass->isArray ());
1015 JvAssert (! strcmp (id->name->data, "<init>")
1016 && id->signature->length > 2
1017 && id->signature->data[0] == '('
1018 && ! strcmp (&id->signature->data[id->signature->length - 2],
1021 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
1027 template<typename T>
1029 _Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
1032 T *ptr = (T *) ((char *) obj + field->getOffset ());
1033 return wrap_value (env, *ptr);
1036 template<typename T>
1038 _Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
1041 T *ptr = (T *) ((char *) obj + field->getOffset ());
1045 template<jboolean is_static>
1047 _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
1048 const char *name, const char *sig)
1052 _Jv_InitClass (clazz);
1054 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
1056 jclass field_class = NULL;
1058 field_class = _Jv_FindClassFromSignature ((char *) sig, NULL);
1061 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
1062 field_class = _Jv_FindClass (sig_u, NULL);
1065 // FIXME: what if field_class == NULL?
1067 while (clazz != NULL)
1069 jint count = (is_static
1070 ? JvNumStaticFields (clazz)
1071 : JvNumInstanceFields (clazz));
1072 jfieldID field = (is_static
1073 ? JvGetFirstStaticField (clazz)
1074 : JvGetFirstInstanceField (clazz));
1075 for (jint i = 0; i < count; ++i)
1077 // The field is resolved as a side effect of class
1079 JvAssert (field->isResolved ());
1081 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
1083 if (_Jv_equalUtf8Consts (f_name, a_name)
1084 && field->getClass() == field_class)
1087 field = field->getNextField ();
1090 clazz = clazz->getSuperclass ();
1093 env->ex = new java::lang::NoSuchFieldError ();
1095 catch (jthrowable t)
1102 template<typename T>
1104 _Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
1106 T *ptr = (T *) field->u.addr;
1107 return wrap_value (env, *ptr);
1110 template<typename T>
1112 _Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
1114 T *ptr = (T *) field->u.addr;
1119 _Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
1123 jstring r = _Jv_NewString (unichars, len);
1124 return (jstring) wrap_value (env, r);
1126 catch (jthrowable t)
1134 _Jv_JNI_GetStringLength (JNIEnv *, jstring string)
1136 return string->length();
1139 static const jchar *
1140 _Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
1142 jchar *result = _Jv_GetStringChars (string);
1143 mark_for_gc (string);
1146 return (const jchar *) result;
1150 _Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
1152 unmark_for_gc (string);
1156 _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
1160 jstring result = JvNewStringUTF (bytes);
1161 return (jstring) wrap_value (env, result);
1163 catch (jthrowable t)
1171 _Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
1173 return JvGetStringUTFLength (string);
1177 _Jv_JNI_GetStringUTFChars (JNIEnv *env, jstring string, jboolean *isCopy)
1179 jsize len = JvGetStringUTFLength (string);
1182 char *r = (char *) _Jv_Malloc (len + 1);
1183 JvGetStringUTFRegion (string, 0, len, r);
1189 return (const char *) r;
1191 catch (jthrowable t)
1199 _Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
1201 _Jv_Free ((void *) utf);
1205 _Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start, jsize len,
1208 jchar *result = _Jv_GetStringChars (string);
1209 if (start < 0 || start > string->length ()
1210 || len < 0 || start + len > string->length ())
1214 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1216 catch (jthrowable t)
1222 memcpy (buf, &result[start], len * sizeof (jchar));
1226 _Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
1227 jsize len, char *buf)
1229 if (start < 0 || start > str->length ()
1230 || len < 0 || start + len > str->length ())
1234 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1236 catch (jthrowable t)
1242 _Jv_GetStringUTFRegion (str, start, len, buf);
1245 static const jchar *
1246 _Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
1248 jchar *result = _Jv_GetStringChars (str);
1255 _Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
1261 _Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
1263 return array->length;
1267 _Jv_JNI_NewObjectArray (JNIEnv *env, jsize length, jclass elementClass,
1272 jarray result = JvNewObjectArray (length, elementClass, init);
1273 return (jarray) wrap_value (env, result);
1275 catch (jthrowable t)
1283 _Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index)
1285 jobject *elts = elements (array);
1286 return wrap_value (env, elts[index]);
1290 _Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index,
1295 _Jv_CheckArrayStore (array, value);
1296 jobject *elts = elements (array);
1297 elts[index] = value;
1299 catch (jthrowable t)
1305 template<typename T, jclass K>
1307 _Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
1311 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1313 catch (jthrowable t)
1320 template<typename T>
1322 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1325 T *elts = elements (array);
1328 // We elect never to copy.
1331 mark_for_gc (array);
1335 template<typename T>
1337 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1338 T *, jint /* mode */)
1340 // Note that we ignore MODE. We can do this because we never copy
1341 // the array elements. My reading of the JNI documentation is that
1342 // this is an option for the implementor.
1343 unmark_for_gc (array);
1346 template<typename T>
1348 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1349 jsize start, jsize len,
1352 if (start < 0 || len >= array->length || start + len >= array->length)
1357 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1359 catch (jthrowable t)
1361 // Could have thown out of memory error.
1367 T *elts = elements (array) + start;
1368 memcpy (buf, elts, len * sizeof (T));
1372 template<typename T>
1374 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1375 jsize start, jsize len, T *buf)
1377 if (start < 0 || len >= array->length || start + len >= array->length)
1382 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1384 catch (jthrowable t)
1391 T *elts = elements (array) + start;
1392 memcpy (elts, buf, len * sizeof (T));
1397 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
1400 // FIXME: does this work?
1401 jclass klass = array->getClass()->getComponentType();
1402 JvAssert (klass->isPrimitive ());
1403 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1410 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
1416 _Jv_JNI_MonitorEnter (JNIEnv *env, jobject obj)
1420 return _Jv_MonitorEnter (obj);
1422 catch (jthrowable t)
1430 _Jv_JNI_MonitorExit (JNIEnv *env, jobject obj)
1434 return _Jv_MonitorExit (obj);
1436 catch (jthrowable t)
1445 _Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
1450 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1451 field->declaringClass = cls;
1452 field->offset = (char*) fieldID - (char *) cls->fields;
1453 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1454 return wrap_value (env, field);
1456 catch (jthrowable t)
1465 _Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
1467 using namespace java::lang::reflect;
1469 Field *field = reinterpret_cast<Field *> (f);
1470 return _Jv_FromReflectedField (field);
1474 _Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
1477 using namespace java::lang::reflect;
1480 static _Jv_Utf8Const *init_name = _Jv_makeUtf8Const ("<init>", 6);
1482 jobject result = NULL;
1486 if (_Jv_equalUtf8Consts (id->name, init_name))
1489 Constructor *cons = new Constructor ();
1490 cons->offset = (char *) id - (char *) &klass->methods;
1491 cons->declaringClass = klass;
1496 Method *meth = new Method ();
1497 meth->offset = (char *) id - (char *) &klass->methods;
1498 meth->declaringClass = klass;
1502 catch (jthrowable t)
1507 return wrap_value (env, result);
1511 _Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
1513 using namespace java::lang::reflect;
1514 if ((&MethodClass)->isInstance (method))
1515 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1517 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1521 _Jv_JNI_RegisterNatives (JNIEnv *env, jclass k,
1522 const JNINativeMethod *methods,
1526 // For now, this only matters for interpreted methods. FIXME.
1527 if (! _Jv_IsInterpretedClass (k))
1529 // FIXME: throw exception.
1532 _Jv_InterpClass *klass = reinterpret_cast<_Jv_InterpClass *> (k);
1534 // Look at each descriptor given us, and find the corresponding
1535 // method in the class.
1536 for (int j = 0; j < nMethods; ++j)
1540 _Jv_MethodBase **imeths = _Jv_GetFirstMethod (klass);
1541 for (int i = 0; i < JvNumMethods (klass); ++i)
1543 _Jv_MethodBase *meth = imeths[i];
1544 _Jv_Method *self = meth->get_method ();
1546 if (! strcmp (self->name->data, methods[j].name)
1547 && ! strcmp (self->signature->data, methods[j].signature))
1549 if (! (self->accflags
1550 & java::lang::reflect::Modifier::NATIVE))
1553 // Found a match that is native.
1554 _Jv_JNIMethod *jmeth = reinterpret_cast<_Jv_JNIMethod *> (meth);
1555 jmeth->set_function (methods[i].fnPtr);
1563 jstring m = JvNewStringUTF (methods[j].name);
1566 env->ex =new java::lang::NoSuchMethodError (m);
1568 catch (jthrowable t)
1577 #else /* INTERPRETER */
1579 #endif /* INTERPRETER */
1583 _Jv_JNI_UnregisterNatives (JNIEnv *, jclass)
1592 // Add a character to the buffer, encoding properly.
1594 add_char (char *buf, jchar c, int *here)
1598 buf[(*here)++] = '_';
1599 buf[(*here)++] = '1';
1603 buf[(*here)++] = '_';
1604 buf[(*here)++] = '2';
1608 buf[(*here)++] = '_';
1609 buf[(*here)++] = '3';
1612 buf[(*here)++] = '_';
1613 else if ((c >= '0' && c <= '9')
1614 || (c >= 'a' && c <= 'z')
1615 || (c >= 'A' && c <= 'Z'))
1616 buf[(*here)++] = (char) c;
1619 // "Unicode" character.
1620 buf[(*here)++] = '_';
1621 buf[(*here)++] = '0';
1622 for (int i = 0; i < 4; ++i)
1625 buf[(*here) + 4 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1632 // Compute a mangled name for a native function. This computes the
1633 // long name, and also returns an index which indicates where a NUL
1634 // can be placed to create the short name. This function assumes that
1635 // the buffer is large enough for its results.
1637 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1638 _Jv_Utf8Const *signature, char *buf, int *long_start)
1640 strcpy (buf, "Java_");
1643 // Add fully qualified class name.
1644 jchar *chars = _Jv_GetStringChars (klass->getName ());
1645 jint len = klass->getName ()->length ();
1646 for (int i = 0; i < len; ++i)
1647 add_char (buf, chars[i], &here);
1649 // Don't use add_char because we need a literal `_'.
1652 const unsigned char *fn = (const unsigned char *) func_name->data;
1653 const unsigned char *limit = fn + func_name->length;
1654 for (int i = 0; ; ++i)
1656 int ch = UTF8_GET (fn, limit);
1659 add_char (buf, ch, &here);
1662 // This is where the long signature begins.
1667 const unsigned char *sig = (const unsigned char *) signature->data;
1668 limit = sig + signature->length;
1669 JvAssert (sig[0] == '(');
1673 int ch = UTF8_GET (sig, limit);
1674 if (ch == ')' || ch < 0)
1676 add_char (buf, ch, &here);
1682 // Return the current thread's JNIEnv; if one does not exist, create
1683 // it. Also create a new system frame for use. This is `extern "C"'
1684 // because the compiler calls it.
1686 _Jv_GetJNIEnvNewFrame (jclass klass)
1688 JNIEnv *env = _Jv_GetCurrentJNIEnv ();
1691 env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1692 env->p = &_Jv_JNIFunctions;
1697 _Jv_SetCurrentJNIEnv (env);
1700 _Jv_JNI_LocalFrame *frame
1701 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1703 * sizeof (jobject)));
1705 frame->marker = MARK_SYSTEM;
1706 frame->size = FRAME_SIZE;
1707 frame->next = env->locals;
1708 env->locals = frame;
1710 for (int i = 0; i < frame->size; ++i)
1711 frame->vec[i] = NULL;
1716 // Return the function which implements a particular JNI method. If
1717 // we can't find the function, we throw the appropriate exception.
1718 // This is `extern "C"' because the compiler uses it.
1720 _Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
1721 _Jv_Utf8Const *signature)
1723 char buf[10 + 6 * (name->length + signature->length)];
1727 mangled_name (klass, name, signature, buf, &long_start);
1728 char c = buf[long_start];
1729 buf[long_start] = '\0';
1730 function = _Jv_FindSymbolInExecutable (buf);
1731 if (function == NULL)
1733 buf[long_start] = c;
1734 function = _Jv_FindSymbolInExecutable (buf);
1735 if (function == NULL)
1737 jstring str = JvNewStringUTF (name->data);
1738 JvThrow (new java::lang::AbstractMethodError (str));
1745 // This function is the stub which is used to turn an ordinary (CNI)
1746 // method call into a JNI call.
1748 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
1750 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
1752 JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
1754 // FIXME: we should mark every reference parameter as a local. For
1755 // now we assume a conservative GC, and we assume that the
1756 // references are on the stack somewhere.
1758 // We cache the value that we find, of course, but if we don't find
1759 // a value we don't cache that fact -- we might subsequently load a
1760 // library which finds the function in question.
1761 if (_this->function == NULL)
1762 _this->function = _Jv_LookupJNIMethod (_this->defining_class,
1764 _this->self->signature);
1766 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
1767 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
1770 // First argument is always the environment pointer.
1771 real_args[offset++].ptr = env;
1773 // For a static method, we pass in the Class. For non-static
1774 // methods, the `this' argument is already handled.
1775 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
1776 real_args[offset++].ptr = _this->defining_class;
1778 // Copy over passed-in arguments.
1779 memcpy (&real_args[offset], args, _this->args_raw_size);
1781 // The actual call to the JNI function.
1782 ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
1785 _Jv_JNI_PopSystemFrame (env);
1788 #endif /* INTERPRETER */
1796 // An internal helper function.
1798 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv, void *args)
1800 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
1801 java::lang::ThreadGroup *group = NULL;
1805 // FIXME: do we really want to support 1.1?
1806 if (attach->version != JNI_VERSION_1_2
1807 && attach->version != JNI_VERSION_1_1)
1808 return JNI_EVERSION;
1810 JvAssert ((&ThreadGroupClass)->isInstance (attach->group));
1811 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
1814 // Attaching an already-attached thread is a no-op.
1815 if (_Jv_GetCurrentJNIEnv () != NULL)
1818 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1821 env->p = &_Jv_JNIFunctions;
1825 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1827 * sizeof (jobject)));
1828 if (env->locals == NULL)
1833 *penv = reinterpret_cast<void *> (env);
1835 // This thread might already be a Java thread -- this function might
1836 // have been called simply to set the new JNIEnv.
1837 if (_Jv_ThreadCurrent () == NULL)
1841 (void) new gnu::gcj::jni::NativeThread (group, name);
1843 catch (jthrowable t)
1848 _Jv_SetCurrentJNIEnv (env);
1853 // This is the one actually used by JNI.
1855 _Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
1857 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args);
1861 _Jv_JNI_DestroyJavaVM (JavaVM *vm)
1863 JvAssert (the_vm && vm == the_vm);
1866 if (_Jv_ThreadCurrent () != NULL)
1872 main_name = JvNewStringLatin1 ("main");
1874 catch (jthrowable t)
1879 jint r = _Jv_JNI_AttachCurrentThread (vm,
1881 reinterpret_cast<void **> (&env),
1887 env = _Jv_GetCurrentJNIEnv ();
1891 // Docs say that this always returns an error code.
1896 _Jv_JNI_DetachCurrentThread (JavaVM *)
1898 java::lang::Thread *t = _Jv_ThreadCurrent ();
1900 return JNI_EDETACHED;
1902 // FIXME: we only allow threads attached via AttachCurrentThread to
1903 // be detached. I have no idea how we could implement detaching
1904 // other threads, given the requirement that we must release all the
1905 // monitors. That just seems evil.
1906 JvAssert ((&NativeThreadClass)->isInstance (t));
1908 // FIXME: release the monitors. We'll take this to mean all
1909 // monitors acquired via the JNI interface. This means we have to
1910 // keep track of them.
1912 gnu::gcj::jni::NativeThread *nt
1913 = reinterpret_cast<gnu::gcj::jni::NativeThread *> (t);
1920 _Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
1922 if (_Jv_ThreadCurrent () == NULL)
1925 return JNI_EDETACHED;
1929 // Handle JVMPI requests.
1930 if (version == JVMPI_VERSION_1)
1932 *penv = (void *) &_Jv_JVMPI_Interface;
1937 // FIXME: do we really want to support 1.1?
1938 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_1)
1941 return JNI_EVERSION;
1944 *penv = (void *) _Jv_GetCurrentJNIEnv ();
1949 JNI_GetDefaultJavaVMInitArgs (void *args)
1951 jint version = * (jint *) args;
1952 // Here we only support 1.2.
1953 if (version != JNI_VERSION_1_2)
1954 return JNI_EVERSION;
1956 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1957 ia->version = JNI_VERSION_1_2;
1960 ia->ignoreUnrecognized = true;
1966 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
1968 JvAssert (! the_vm);
1969 // FIXME: synchronize
1970 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1973 nvm->functions = &_Jv_JNI_InvokeFunctions;
1975 // Parse the arguments.
1978 jint version = * (jint *) args;
1979 // We only support 1.2.
1980 if (version != JNI_VERSION_1_2)
1981 return JNI_EVERSION;
1982 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1983 for (int i = 0; i < ia->nOptions; ++i)
1985 if (! strcmp (ia->options[i].optionString, "vfprintf")
1986 || ! strcmp (ia->options[i].optionString, "exit")
1987 || ! strcmp (ia->options[i].optionString, "abort"))
1989 // We are required to recognize these, but for now we
1990 // don't handle them in any way. FIXME.
1993 else if (! strncmp (ia->options[i].optionString,
1994 "-verbose", sizeof ("-verbose") - 1))
1996 // We don't do anything with this option either. We
1997 // might want to make sure the argument is valid, but we
1998 // don't really care all that much for now.
2001 else if (! strncmp (ia->options[i].optionString, "-D", 2))
2006 else if (ia->ignoreUnrecognized)
2008 if (ia->options[i].optionString[0] == '_'
2009 || ! strncmp (ia->options[i].optionString, "-X", 2))
2017 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
2027 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
2032 // We only support a single VM.
2035 vm_buffer[0] = the_vm;
2046 // FIXME: synchronize
2049 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2051 nvm->functions = &_Jv_JNI_InvokeFunctions;
2055 // If this is a Java thread, we want to make sure it has an
2056 // associated JNIEnv.
2057 if (_Jv_ThreadCurrent () != NULL)
2060 _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
2067 _Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
2069 *vm = _Jv_GetJavaVM ();
2070 return *vm == NULL ? JNI_ERR : JNI_OK;
2075 #define NOT_IMPL NULL
2076 #define RESERVED NULL
2078 struct JNINativeInterface _Jv_JNIFunctions =
2085 _Jv_JNI_DefineClass,
2087 _Jv_JNI_FromReflectedMethod,
2088 _Jv_JNI_FromReflectedField,
2089 _Jv_JNI_ToReflectedMethod,
2090 _Jv_JNI_GetSuperclass,
2091 _Jv_JNI_IsAssignableFrom,
2092 _Jv_JNI_ToReflectedField,
2095 _Jv_JNI_ExceptionOccurred,
2096 _Jv_JNI_ExceptionDescribe,
2097 _Jv_JNI_ExceptionClear,
2100 _Jv_JNI_PushLocalFrame,
2101 _Jv_JNI_PopLocalFrame,
2102 _Jv_JNI_NewGlobalRef,
2103 _Jv_JNI_DeleteGlobalRef,
2104 _Jv_JNI_DeleteLocalRef,
2106 _Jv_JNI_IsSameObject,
2108 _Jv_JNI_NewLocalRef,
2109 _Jv_JNI_EnsureLocalCapacity,
2111 _Jv_JNI_AllocObject,
2115 _Jv_JNI_GetObjectClass,
2116 _Jv_JNI_IsInstanceOf,
2117 _Jv_JNI_GetAnyMethodID<false>,
2119 _Jv_JNI_CallMethod<jobject>,
2120 _Jv_JNI_CallMethodV<jobject>,
2121 _Jv_JNI_CallMethodA<jobject>,
2122 _Jv_JNI_CallMethod<jboolean>,
2123 _Jv_JNI_CallMethodV<jboolean>,
2124 _Jv_JNI_CallMethodA<jboolean>,
2125 _Jv_JNI_CallMethod<jbyte>,
2126 _Jv_JNI_CallMethodV<jbyte>,
2127 _Jv_JNI_CallMethodA<jbyte>,
2128 _Jv_JNI_CallMethod<jchar>,
2129 _Jv_JNI_CallMethodV<jchar>,
2130 _Jv_JNI_CallMethodA<jchar>,
2131 _Jv_JNI_CallMethod<jshort>,
2132 _Jv_JNI_CallMethodV<jshort>,
2133 _Jv_JNI_CallMethodA<jshort>,
2134 _Jv_JNI_CallMethod<jint>,
2135 _Jv_JNI_CallMethodV<jint>,
2136 _Jv_JNI_CallMethodA<jint>,
2137 _Jv_JNI_CallMethod<jlong>,
2138 _Jv_JNI_CallMethodV<jlong>,
2139 _Jv_JNI_CallMethodA<jlong>,
2140 _Jv_JNI_CallMethod<jfloat>,
2141 _Jv_JNI_CallMethodV<jfloat>,
2142 _Jv_JNI_CallMethodA<jfloat>,
2143 _Jv_JNI_CallMethod<jdouble>,
2144 _Jv_JNI_CallMethodV<jdouble>,
2145 _Jv_JNI_CallMethodA<jdouble>,
2146 _Jv_JNI_CallVoidMethod,
2147 _Jv_JNI_CallVoidMethodV,
2148 _Jv_JNI_CallVoidMethodA,
2150 // Nonvirtual method invocation functions follow.
2151 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>,
2152 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>,
2153 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>,
2154 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>,
2155 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>,
2156 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>,
2157 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>,
2158 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>,
2159 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>,
2160 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>,
2161 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>,
2162 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>,
2163 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>,
2164 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>,
2165 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>,
2166 _Jv_JNI_CallAnyMethod<jint, nonvirtual>,
2167 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>,
2168 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>,
2169 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>,
2170 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>,
2171 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>,
2172 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>,
2173 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>,
2174 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>,
2175 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>,
2176 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>,
2177 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>,
2178 _Jv_JNI_CallAnyVoidMethod<nonvirtual>,
2179 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>,
2180 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>,
2182 _Jv_JNI_GetAnyFieldID<false>,
2183 _Jv_JNI_GetField<jobject>,
2184 _Jv_JNI_GetField<jboolean>,
2185 _Jv_JNI_GetField<jbyte>,
2186 _Jv_JNI_GetField<jchar>,
2187 _Jv_JNI_GetField<jshort>,
2188 _Jv_JNI_GetField<jint>,
2189 _Jv_JNI_GetField<jlong>,
2190 _Jv_JNI_GetField<jfloat>,
2191 _Jv_JNI_GetField<jdouble>,
2201 _Jv_JNI_GetAnyMethodID<true>,
2203 _Jv_JNI_CallStaticMethod<jobject>,
2204 _Jv_JNI_CallStaticMethodV<jobject>,
2205 _Jv_JNI_CallStaticMethodA<jobject>,
2206 _Jv_JNI_CallStaticMethod<jboolean>,
2207 _Jv_JNI_CallStaticMethodV<jboolean>,
2208 _Jv_JNI_CallStaticMethodA<jboolean>,
2209 _Jv_JNI_CallStaticMethod<jbyte>,
2210 _Jv_JNI_CallStaticMethodV<jbyte>,
2211 _Jv_JNI_CallStaticMethodA<jbyte>,
2212 _Jv_JNI_CallStaticMethod<jchar>,
2213 _Jv_JNI_CallStaticMethodV<jchar>,
2214 _Jv_JNI_CallStaticMethodA<jchar>,
2215 _Jv_JNI_CallStaticMethod<jshort>,
2216 _Jv_JNI_CallStaticMethodV<jshort>,
2217 _Jv_JNI_CallStaticMethodA<jshort>,
2218 _Jv_JNI_CallStaticMethod<jint>,
2219 _Jv_JNI_CallStaticMethodV<jint>,
2220 _Jv_JNI_CallStaticMethodA<jint>,
2221 _Jv_JNI_CallStaticMethod<jlong>,
2222 _Jv_JNI_CallStaticMethodV<jlong>,
2223 _Jv_JNI_CallStaticMethodA<jlong>,
2224 _Jv_JNI_CallStaticMethod<jfloat>,
2225 _Jv_JNI_CallStaticMethodV<jfloat>,
2226 _Jv_JNI_CallStaticMethodA<jfloat>,
2227 _Jv_JNI_CallStaticMethod<jdouble>,
2228 _Jv_JNI_CallStaticMethodV<jdouble>,
2229 _Jv_JNI_CallStaticMethodA<jdouble>,
2230 _Jv_JNI_CallStaticVoidMethod,
2231 _Jv_JNI_CallStaticVoidMethodV,
2232 _Jv_JNI_CallStaticVoidMethodA,
2234 _Jv_JNI_GetAnyFieldID<true>,
2235 _Jv_JNI_GetStaticField<jobject>,
2236 _Jv_JNI_GetStaticField<jboolean>,
2237 _Jv_JNI_GetStaticField<jbyte>,
2238 _Jv_JNI_GetStaticField<jchar>,
2239 _Jv_JNI_GetStaticField<jshort>,
2240 _Jv_JNI_GetStaticField<jint>,
2241 _Jv_JNI_GetStaticField<jlong>,
2242 _Jv_JNI_GetStaticField<jfloat>,
2243 _Jv_JNI_GetStaticField<jdouble>,
2244 _Jv_JNI_SetStaticField,
2245 _Jv_JNI_SetStaticField,
2246 _Jv_JNI_SetStaticField,
2247 _Jv_JNI_SetStaticField,
2248 _Jv_JNI_SetStaticField,
2249 _Jv_JNI_SetStaticField,
2250 _Jv_JNI_SetStaticField,
2251 _Jv_JNI_SetStaticField,
2252 _Jv_JNI_SetStaticField,
2254 _Jv_JNI_GetStringLength,
2255 _Jv_JNI_GetStringChars,
2256 _Jv_JNI_ReleaseStringChars,
2257 _Jv_JNI_NewStringUTF,
2258 _Jv_JNI_GetStringUTFLength,
2259 _Jv_JNI_GetStringUTFChars,
2260 _Jv_JNI_ReleaseStringUTFChars,
2261 _Jv_JNI_GetArrayLength,
2262 _Jv_JNI_NewObjectArray,
2263 _Jv_JNI_GetObjectArrayElement,
2264 _Jv_JNI_SetObjectArrayElement,
2265 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
2266 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>,
2267 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>,
2268 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>,
2269 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>,
2270 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>,
2271 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>,
2272 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>,
2273 _Jv_JNI_GetPrimitiveArrayElements,
2274 _Jv_JNI_GetPrimitiveArrayElements,
2275 _Jv_JNI_GetPrimitiveArrayElements,
2276 _Jv_JNI_GetPrimitiveArrayElements,
2277 _Jv_JNI_GetPrimitiveArrayElements,
2278 _Jv_JNI_GetPrimitiveArrayElements,
2279 _Jv_JNI_GetPrimitiveArrayElements,
2280 _Jv_JNI_GetPrimitiveArrayElements,
2281 _Jv_JNI_ReleasePrimitiveArrayElements,
2282 _Jv_JNI_ReleasePrimitiveArrayElements,
2283 _Jv_JNI_ReleasePrimitiveArrayElements,
2284 _Jv_JNI_ReleasePrimitiveArrayElements,
2285 _Jv_JNI_ReleasePrimitiveArrayElements,
2286 _Jv_JNI_ReleasePrimitiveArrayElements,
2287 _Jv_JNI_ReleasePrimitiveArrayElements,
2288 _Jv_JNI_ReleasePrimitiveArrayElements,
2289 _Jv_JNI_GetPrimitiveArrayRegion,
2290 _Jv_JNI_GetPrimitiveArrayRegion,
2291 _Jv_JNI_GetPrimitiveArrayRegion,
2292 _Jv_JNI_GetPrimitiveArrayRegion,
2293 _Jv_JNI_GetPrimitiveArrayRegion,
2294 _Jv_JNI_GetPrimitiveArrayRegion,
2295 _Jv_JNI_GetPrimitiveArrayRegion,
2296 _Jv_JNI_GetPrimitiveArrayRegion,
2297 _Jv_JNI_SetPrimitiveArrayRegion,
2298 _Jv_JNI_SetPrimitiveArrayRegion,
2299 _Jv_JNI_SetPrimitiveArrayRegion,
2300 _Jv_JNI_SetPrimitiveArrayRegion,
2301 _Jv_JNI_SetPrimitiveArrayRegion,
2302 _Jv_JNI_SetPrimitiveArrayRegion,
2303 _Jv_JNI_SetPrimitiveArrayRegion,
2304 _Jv_JNI_SetPrimitiveArrayRegion,
2305 _Jv_JNI_RegisterNatives,
2306 _Jv_JNI_UnregisterNatives,
2307 _Jv_JNI_MonitorEnter,
2308 _Jv_JNI_MonitorExit,
2311 _Jv_JNI_GetStringRegion,
2312 _Jv_JNI_GetStringUTFRegion,
2313 _Jv_JNI_GetPrimitiveArrayCritical,
2314 _Jv_JNI_ReleasePrimitiveArrayCritical,
2315 _Jv_JNI_GetStringCritical,
2316 _Jv_JNI_ReleaseStringCritical,
2318 NOT_IMPL /* newweakglobalref */,
2319 NOT_IMPL /* deleteweakglobalref */,
2321 _Jv_JNI_ExceptionCheck
2324 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
2330 _Jv_JNI_DestroyJavaVM,
2331 _Jv_JNI_AttachCurrentThread,
2332 _Jv_JNI_DetachCurrentThread,