1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000 Red Hat, Inc.
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>
24 #include <java/lang/Class.h>
25 #include <java/lang/ClassLoader.h>
26 #include <java/lang/Throwable.h>
27 #include <java/lang/ArrayIndexOutOfBoundsException.h>
28 #include <java/lang/StringIndexOutOfBoundsException.h>
29 #include <java/lang/AbstractMethodError.h>
30 #include <java/lang/InstantiationException.h>
31 #include <java/lang/NoSuchFieldError.h>
32 #include <java/lang/NoSuchMethodError.h>
33 #include <java/lang/reflect/Constructor.h>
34 #include <java/lang/reflect/Method.h>
35 #include <java/lang/reflect/Modifier.h>
36 #include <java/lang/OutOfMemoryError.h>
37 #include <java/util/Hashtable.h>
38 #include <java/lang/Integer.h>
39 #include <gnu/gcj/jni/NativeThread.h>
41 #include <gcj/method.h>
42 #include <gcj/field.h>
44 #include <java-interp.h>
46 #define ClassClass _CL_Q34java4lang5Class
47 extern java::lang::Class ClassClass;
48 #define ObjectClass _CL_Q34java4lang6Object
49 extern java::lang::Class ObjectClass;
51 #define ThrowableClass _CL_Q34java4lang9Throwable
52 extern java::lang::Class ThrowableClass;
53 #define MethodClass _CL_Q44java4lang7reflect6Method
54 extern java::lang::Class MethodClass;
55 #define ThreadGroupClass _CL_Q34java4lang11ThreadGroup
56 extern java::lang::Class ThreadGroupClass;
57 #define NativeThreadClass _CL_Q43gnu3gcj3jni12NativeThread
58 extern java::lang::Class ThreadGroupClass;
60 // This enum is used to select different template instantiations in
61 // the invocation code.
70 // Forward declarations.
71 extern struct JNINativeInterface _Jv_JNIFunctions;
72 extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions;
74 // Number of slots in the default frame. The VM must allow at least
78 // Mark value indicating this is an overflow frame.
80 // Mark value indicating this is a user frame.
82 // Mark value indicating this is a system frame.
85 // This structure is used to keep track of local references.
86 struct _Jv_JNI_LocalFrame
88 // This is true if this frame object represents a pushed frame (eg
89 // from PushLocalFrame).
92 // Number of elements in frame.
95 // Next frame in chain.
96 _Jv_JNI_LocalFrame *next;
98 // The elements. These are allocated using the C "struct hack".
102 // This holds a reference count for all local and global references.
103 static java::util::Hashtable *ref_table;
106 static JavaVM *the_vm;
113 ref_table = new java::util::Hashtable;
116 // Tell the GC that a certain pointer is live.
118 mark_for_gc (jobject obj)
120 JvSynchronize sync (ref_table);
122 using namespace java::lang;
123 Integer *refcount = (Integer *) ref_table->get (obj);
124 jint val = (refcount == NULL) ? 0 : refcount->intValue ();
125 // FIXME: what about out of memory error?
126 ref_table->put (obj, new Integer (val + 1));
131 unmark_for_gc (jobject obj)
133 JvSynchronize sync (ref_table);
135 using namespace java::lang;
136 Integer *refcount = (Integer *) ref_table->get (obj);
138 jint val = refcount->intValue () - 1;
140 ref_table->remove (obj);
142 // FIXME: what about out of memory error?
143 ref_table->put (obj, new Integer (val));
149 _Jv_JNI_NewGlobalRef (JNIEnv *, jobject obj)
156 _Jv_JNI_DeleteGlobalRef (JNIEnv *, jobject obj)
162 _Jv_JNI_DeleteLocalRef (JNIEnv *env, jobject obj)
164 _Jv_JNI_LocalFrame *frame;
166 for (frame = env->locals; frame != NULL; frame = frame->next)
168 for (int i = 0; i < FRAME_SIZE; ++i)
170 if (frame->vec[i] == obj)
172 frame->vec[i] = NULL;
178 // Don't go past a marked frame.
179 JvAssert (frame->marker == MARK_NONE);
186 _Jv_JNI_EnsureLocalCapacity (JNIEnv *env, jint size)
188 // It is easier to just always allocate a new frame of the requested
189 // size. This isn't the most efficient thing, but for now we don't
190 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
192 _Jv_JNI_LocalFrame *frame;
195 frame = (_Jv_JNI_LocalFrame *) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame)
196 + size * sizeof (jobject));
204 frame->marker = MARK_NONE;
206 memset (&frame->vec[0], 0, size * sizeof (jobject));
207 frame->next = env->locals;
214 _Jv_JNI_PushLocalFrame (JNIEnv *env, jint size)
216 jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
220 // The new frame is on top.
221 env->locals->marker = MARK_USER;
227 _Jv_JNI_NewLocalRef (JNIEnv *env, jobject obj)
229 // Try to find an open slot somewhere in the topmost frame.
230 _Jv_JNI_LocalFrame *frame = env->locals;
231 bool done = false, set = false;
232 while (frame != NULL && ! done)
234 for (int i = 0; i < frame->size; ++i)
235 if (frame->vec[i] == NULL)
246 // No slots, so we allocate a new frame. According to the spec
247 // we could just die here. FIXME: return value.
248 _Jv_JNI_EnsureLocalCapacity (env, 16);
249 // We know the first element of the new frame will be ok.
250 env->locals->vec[0] = obj;
258 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result, int stop)
260 _Jv_JNI_LocalFrame *rf = env->locals;
263 while (rf != NULL && ! done)
265 for (int i = 0; i < rf->size; ++i)
266 if (rf->vec[i] != NULL)
267 unmark_for_gc (rf->vec[i]);
269 // If the frame we just freed is the marker frame, we are done.
270 done = (rf->marker == stop);
272 _Jv_JNI_LocalFrame *n = rf->next;
273 // When N==NULL, we've reached the stack-allocated frame, and we
274 // must not free it. However, we must be sure to clear all its
275 // elements, since we might conceivably reuse it.
278 memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
286 return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
290 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result)
292 return _Jv_JNI_PopLocalFrame (env, result, MARK_USER);
295 // Pop a `system' frame from the stack. This is `extern "C"' as it is
296 // used by the compiler.
298 _Jv_JNI_PopSystemFrame (JNIEnv *env)
300 _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
303 // This function is used from other template functions. It wraps the
304 // return value appropriately; we specialize it so that object returns
305 // are turned into local references.
308 wrap_value (JNIEnv *, T value)
315 wrap_value (JNIEnv *env, jobject value)
317 return value == NULL ? value : _Jv_JNI_NewLocalRef (env, value);
323 _Jv_JNI_GetVersion (JNIEnv *)
325 return JNI_VERSION_1_2;
329 _Jv_JNI_DefineClass (JNIEnv *env, jobject loader,
330 const jbyte *buf, jsize bufLen)
334 jbyteArray bytes = JvNewByteArray (bufLen);
336 jbyte *elts = elements (bytes);
337 memcpy (elts, buf, bufLen * sizeof (jbyte));
339 java::lang::ClassLoader *l
340 = reinterpret_cast<java::lang::ClassLoader *> (loader);
342 jclass result = l->defineClass (bytes, 0, bufLen);
343 return (jclass) wrap_value (env, result);
353 _Jv_JNI_FindClass (JNIEnv *env, const char *name)
355 // FIXME: assume that NAME isn't too long.
356 int len = strlen (name);
358 for (int i = 0; i <= len; ++i)
359 s[i] = (name[i] == '/') ? '.' : name[i];
364 // This might throw an out of memory exception.
365 jstring n = JvNewStringUTF (s);
367 java::lang::ClassLoader *loader;
368 if (env->klass == NULL)
370 // FIXME: should use getBaseClassLoader, but we don't have that
372 loader = java::lang::ClassLoader::getSystemClassLoader ();
375 loader = env->klass->getClassLoader ();
377 r = loader->loadClass (n);
384 return (jclass) wrap_value (env, r);
388 _Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
390 return (jclass) wrap_value (env, clazz->getSuperclass ());
394 _Jv_JNI_IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
396 return clazz1->isAssignableFrom (clazz2);
400 _Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
402 // We check in case the user did some funky cast.
403 JvAssert (obj != NULL && (&ThrowableClass)->isInstance (obj));
409 _Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
411 using namespace java::lang::reflect;
413 JvAssert ((&ThrowableClass)->isAssignableFrom (clazz));
418 JArray<jclass> *argtypes
419 = (JArray<jclass> *) JvNewObjectArray (1, &ClassClass, NULL);
421 jclass *elts = elements (argtypes);
422 elts[0] = &StringClass;
424 Constructor *cons = clazz->getConstructor (argtypes);
426 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
427 jobject *velts = elements (values);
428 velts[0] = JvNewStringUTF (message);
430 jobject obj = cons->newInstance (values);
432 env->ex = reinterpret_cast<jthrowable> (obj);
444 _Jv_JNI_ExceptionOccurred (JNIEnv *env)
446 return (jthrowable) wrap_value (env, env->ex);
450 _Jv_JNI_ExceptionDescribe (JNIEnv *env)
453 env->ex->printStackTrace();
457 _Jv_JNI_ExceptionClear (JNIEnv *env)
463 _Jv_JNI_ExceptionCheck (JNIEnv *env)
465 return env->ex != NULL;
469 _Jv_JNI_FatalError (JNIEnv *, const char *message)
477 _Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
483 _Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
486 using namespace java::lang::reflect;
490 JvAssert (clazz && ! clazz->isArray ());
491 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
492 env->ex = new java::lang::InstantiationException ();
495 // FIXME: will this work for String?
496 obj = JvAllocObject (clazz);
504 return wrap_value (env, obj);
508 _Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
511 return (jclass) wrap_value (env, obj->getClass());
515 _Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
517 return clazz->isInstance(obj);
523 // This section concerns method invocation.
526 template<jboolean is_static>
528 _Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
529 const char *name, const char *sig)
533 _Jv_InitClass (clazz);
535 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
536 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
538 JvAssert (! clazz->isPrimitive());
540 using namespace java::lang::reflect;
542 while (clazz != NULL)
544 jint count = JvNumMethods (clazz);
545 jmethodID meth = JvGetFirstMethod (clazz);
547 for (jint i = 0; i < count; ++i)
549 if (((is_static && Modifier::isStatic (meth->accflags))
550 || (! is_static && ! Modifier::isStatic (meth->accflags)))
551 && _Jv_equalUtf8Consts (meth->name, name_u)
552 && _Jv_equalUtf8Consts (meth->signature, sig_u))
555 meth = meth->getNextMethod();
558 clazz = clazz->getSuperclass ();
561 env->ex = new java::lang::NoSuchMethodError ();
571 // This is a helper function which turns a va_list into an array of
572 // `jvalue's. It needs signature information in order to do its work.
573 // The array of values must already be allocated.
575 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
577 jclass *arg_elts = elements (arg_types);
578 for (int i = 0; i < arg_types->length; ++i)
580 if (arg_elts[i] == JvPrimClass (byte))
581 values[i].b = va_arg (vargs, jbyte);
582 else if (arg_elts[i] == JvPrimClass (short))
583 values[i].s = va_arg (vargs, jshort);
584 else if (arg_elts[i] == JvPrimClass (int))
585 values[i].i = va_arg (vargs, jint);
586 else if (arg_elts[i] == JvPrimClass (long))
587 values[i].j = va_arg (vargs, jlong);
588 else if (arg_elts[i] == JvPrimClass (float))
589 values[i].f = va_arg (vargs, jfloat);
590 else if (arg_elts[i] == JvPrimClass (double))
591 values[i].d = va_arg (vargs, jdouble);
592 else if (arg_elts[i] == JvPrimClass (boolean))
593 values[i].z = va_arg (vargs, jboolean);
594 else if (arg_elts[i] == JvPrimClass (char))
595 values[i].c = va_arg (vargs, jchar);
599 values[i].l = va_arg (vargs, jobject);
604 // This can call any sort of method: virtual, "nonvirtual", static, or
606 template<typename T, invocation_type style>
608 _Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
609 jmethodID id, va_list vargs)
612 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
614 jclass decl_class = klass ? klass : obj->getClass ();
615 JvAssert (decl_class != NULL);
618 JArray<jclass> *arg_types;
622 _Jv_GetTypesFromSignature (id, decl_class,
623 &arg_types, &return_type);
625 jvalue args[arg_types->length];
626 array_from_valist (args, arg_types, vargs);
628 // For constructors we need to pass the Class we are instantiating.
629 if (style == constructor)
633 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
634 style == constructor,
635 arg_types, args, &result);
640 // We cheat a little here. FIXME.
641 return wrap_value (env, * (T *) &result);
648 return wrap_value (env, (T) 0);
651 template<typename T, invocation_type style>
653 _Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
654 jmethodID method, ...)
659 va_start (args, method);
660 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
666 template<typename T, invocation_type style>
668 _Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
669 jmethodID id, jvalue *args)
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;
681 _Jv_GetTypesFromSignature (id, decl_class,
682 &arg_types, &return_type);
684 // For constructors we need to pass the Class we are instantiating.
685 if (style == constructor)
689 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
690 style == constructor,
691 arg_types, args, &result);
696 // We cheat a little here. FIXME.
697 return wrap_value (env, * (T *) &result);
704 return wrap_value (env, (T) 0);
707 template<invocation_type style>
709 _Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
710 jmethodID id, va_list vargs)
713 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
715 jclass decl_class = klass ? klass : obj->getClass ();
716 JvAssert (decl_class != NULL);
719 JArray<jclass> *arg_types;
722 _Jv_GetTypesFromSignature (id, decl_class,
723 &arg_types, &return_type);
725 jvalue args[arg_types->length];
726 array_from_valist (args, arg_types, vargs);
728 // For constructors we need to pass the Class we are instantiating.
729 if (style == constructor)
732 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
733 style == constructor,
734 arg_types, args, NULL);
745 template<invocation_type style>
747 _Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
748 jmethodID method, ...)
752 va_start (args, method);
753 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
757 template<invocation_type style>
759 _Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
760 jmethodID id, jvalue *args)
763 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
765 jclass decl_class = klass ? klass : obj->getClass ();
766 JvAssert (decl_class != NULL);
769 JArray<jclass> *arg_types;
772 _Jv_GetTypesFromSignature (id, decl_class,
773 &arg_types, &return_type);
775 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
776 style == constructor,
777 arg_types, args, NULL);
788 // Functions with this signature are used to implement functions in
789 // the CallMethod family.
792 _Jv_JNI_CallMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
794 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
797 // Functions with this signature are used to implement functions in
798 // the CallMethod family.
801 _Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
807 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
813 // Functions with this signature are used to implement functions in
814 // the CallMethod family.
817 _Jv_JNI_CallMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
819 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
823 _Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
825 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
829 _Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
834 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
839 _Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
841 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
844 // Functions with this signature are used to implement functions in
845 // the CallStaticMethod family.
848 _Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
849 jmethodID id, va_list args)
851 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
852 JvAssert ((&ClassClass)->isInstance (klass));
854 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
857 // Functions with this signature are used to implement functions in
858 // the CallStaticMethod family.
861 _Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
866 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
867 JvAssert ((&ClassClass)->isInstance (klass));
870 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
877 // Functions with this signature are used to implement functions in
878 // the CallStaticMethod family.
881 _Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
884 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
885 JvAssert ((&ClassClass)->isInstance (klass));
887 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
891 _Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass, jmethodID id,
894 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
898 _Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
903 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
908 _Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass, jmethodID id,
911 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
915 _Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
916 jmethodID id, va_list args)
918 JvAssert (klass && ! klass->isArray ());
919 JvAssert (! strcmp (id->name->data, "<init>")
920 && id->signature->length > 2
921 && id->signature->data[0] == '('
922 && ! strcmp (&id->signature->data[id->signature->length - 2],
925 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
930 _Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
932 JvAssert (klass && ! klass->isArray ());
933 JvAssert (! strcmp (id->name->data, "<init>")
934 && id->signature->length > 2
935 && id->signature->data[0] == '('
936 && ! strcmp (&id->signature->data[id->signature->length - 2],
943 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
951 _Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
954 JvAssert (klass && ! klass->isArray ());
955 JvAssert (! strcmp (id->name->data, "<init>")
956 && id->signature->length > 2
957 && id->signature->data[0] == '('
958 && ! strcmp (&id->signature->data[id->signature->length - 2],
961 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
969 _Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
972 T *ptr = (T *) ((char *) obj + field->getOffset ());
973 return wrap_value (env, *ptr);
978 _Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
981 T *ptr = (T *) ((char *) obj + field->getOffset ());
985 template<jboolean is_static>
987 _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
988 const char *name, const char *sig)
992 _Jv_InitClass (clazz);
994 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
996 jclass field_class = NULL;
998 field_class = _Jv_FindClassFromSignature ((char *) sig, NULL);
1001 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
1002 field_class = _Jv_FindClass (sig_u, NULL);
1005 // FIXME: what if field_class == NULL?
1007 while (clazz != NULL)
1009 jint count = (is_static
1010 ? JvNumStaticFields (clazz)
1011 : JvNumInstanceFields (clazz));
1012 jfieldID field = (is_static
1013 ? JvGetFirstStaticField (clazz)
1014 : JvGetFirstInstanceField (clazz));
1015 for (jint i = 0; i < count; ++i)
1017 // The field is resolved as a side effect of class
1019 JvAssert (field->isResolved ());
1021 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
1023 if (_Jv_equalUtf8Consts (f_name, a_name)
1024 && field->getClass() == field_class)
1027 field = field->getNextField ();
1030 clazz = clazz->getSuperclass ();
1033 env->ex = new java::lang::NoSuchFieldError ();
1035 catch (jthrowable t)
1042 template<typename T>
1044 _Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
1046 T *ptr = (T *) field->u.addr;
1047 return wrap_value (env, *ptr);
1050 template<typename T>
1052 _Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
1054 T *ptr = (T *) field->u.addr;
1059 _Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
1063 jstring r = _Jv_NewString (unichars, len);
1064 return (jstring) wrap_value (env, r);
1066 catch (jthrowable t)
1074 _Jv_JNI_GetStringLength (JNIEnv *, jstring string)
1076 return string->length();
1079 static const jchar *
1080 _Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
1082 jchar *result = _Jv_GetStringChars (string);
1083 mark_for_gc (string);
1086 return (const jchar *) result;
1090 _Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
1092 unmark_for_gc (string);
1096 _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
1100 jstring result = JvNewStringUTF (bytes);
1101 return (jstring) wrap_value (env, result);
1103 catch (jthrowable t)
1111 _Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
1113 return JvGetStringUTFLength (string);
1117 _Jv_JNI_GetStringUTFChars (JNIEnv *env, jstring string, jboolean *isCopy)
1119 jsize len = JvGetStringUTFLength (string);
1122 char *r = (char *) _Jv_Malloc (len + 1);
1123 JvGetStringUTFRegion (string, 0, len, r);
1129 return (const char *) r;
1131 catch (jthrowable t)
1139 _Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
1141 _Jv_Free ((void *) utf);
1145 _Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start, jsize len,
1148 jchar *result = _Jv_GetStringChars (string);
1149 if (start < 0 || start > string->length ()
1150 || len < 0 || start + len > string->length ())
1154 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1156 catch (jthrowable t)
1162 memcpy (buf, &result[start], len * sizeof (jchar));
1166 _Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
1167 jsize len, char *buf)
1169 if (start < 0 || start > str->length ()
1170 || len < 0 || start + len > str->length ())
1174 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1176 catch (jthrowable t)
1182 _Jv_GetStringUTFRegion (str, start, len, buf);
1185 static const jchar *
1186 _Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
1188 jchar *result = _Jv_GetStringChars (str);
1195 _Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
1201 _Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
1203 return array->length;
1207 _Jv_JNI_NewObjectArray (JNIEnv *env, jsize length, jclass elementClass,
1212 jarray result = JvNewObjectArray (length, elementClass, init);
1213 return (jarray) wrap_value (env, result);
1215 catch (jthrowable t)
1223 _Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index)
1225 jobject *elts = elements (array);
1226 return wrap_value (env, elts[index]);
1230 _Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index,
1235 _Jv_CheckArrayStore (array, value);
1236 jobject *elts = elements (array);
1237 elts[index] = value;
1239 catch (jthrowable t)
1245 template<typename T, jclass K>
1247 _Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
1251 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1253 catch (jthrowable t)
1260 template<typename T>
1262 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1265 T *elts = elements (array);
1268 // We elect never to copy.
1271 mark_for_gc (array);
1275 template<typename T>
1277 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1278 T *, jint /* mode */)
1280 // Note that we ignore MODE. We can do this because we never copy
1281 // the array elements. My reading of the JNI documentation is that
1282 // this is an option for the implementor.
1283 unmark_for_gc (array);
1286 template<typename T>
1288 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1289 jsize start, jsize len,
1292 if (start < 0 || len >= array->length || start + len >= array->length)
1297 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1299 catch (jthrowable t)
1301 // Could have thown out of memory error.
1307 T *elts = elements (array) + start;
1308 memcpy (buf, elts, len * sizeof (T));
1312 template<typename T>
1314 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1315 jsize start, jsize len, T *buf)
1317 if (start < 0 || len >= array->length || start + len >= array->length)
1322 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1324 catch (jthrowable t)
1331 T *elts = elements (array) + start;
1332 memcpy (elts, buf, len * sizeof (T));
1337 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
1340 // FIXME: does this work?
1341 jclass klass = array->getClass()->getComponentType();
1342 JvAssert (klass->isPrimitive ());
1343 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1350 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
1356 _Jv_JNI_MonitorEnter (JNIEnv *env, jobject obj)
1360 return _Jv_MonitorEnter (obj);
1362 catch (jthrowable t)
1370 _Jv_JNI_MonitorExit (JNIEnv *env, jobject obj)
1374 return _Jv_MonitorExit (obj);
1376 catch (jthrowable t)
1385 _Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
1390 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1391 field->declaringClass = cls;
1392 field->offset = (char*) fieldID - (char *) cls->fields;
1393 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1394 return wrap_value (env, field);
1396 catch (jthrowable t)
1405 _Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
1407 using namespace java::lang::reflect;
1409 Field *field = reinterpret_cast<Field *> (f);
1410 return _Jv_FromReflectedField (field);
1414 _Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
1417 using namespace java::lang::reflect;
1420 static _Jv_Utf8Const *init_name = _Jv_makeUtf8Const ("<init>", 6);
1422 jobject result = NULL;
1426 if (_Jv_equalUtf8Consts (id->name, init_name))
1429 Constructor *cons = new Constructor ();
1430 cons->offset = (char *) id - (char *) &klass->methods;
1431 cons->declaringClass = klass;
1436 Method *meth = new Method ();
1437 meth->offset = (char *) id - (char *) &klass->methods;
1438 meth->declaringClass = klass;
1442 catch (jthrowable t)
1447 return wrap_value (env, result);
1451 _Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
1453 using namespace java::lang::reflect;
1454 if ((&MethodClass)->isInstance (method))
1455 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1457 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1461 _Jv_JNI_RegisterNatives (JNIEnv *env, jclass k,
1462 const JNINativeMethod *methods,
1466 // For now, this only matters for interpreted methods. FIXME.
1467 if (! _Jv_IsInterpretedClass (k))
1469 // FIXME: throw exception.
1472 _Jv_InterpClass *klass = reinterpret_cast<_Jv_InterpClass *> (k);
1474 // Look at each descriptor given us, and find the corresponding
1475 // method in the class.
1476 for (int j = 0; j < nMethods; ++j)
1480 _Jv_MethodBase **imeths = _Jv_GetFirstMethod (klass);
1481 for (int i = 0; i < JvNumMethods (klass); ++i)
1483 _Jv_MethodBase *meth = imeths[i];
1484 _Jv_Method *self = meth->get_method ();
1486 if (! strcmp (self->name->data, methods[j].name)
1487 && ! strcmp (self->signature->data, methods[j].signature))
1489 if (! (self->accflags
1490 & java::lang::reflect::Modifier::NATIVE))
1493 // Found a match that is native.
1494 _Jv_JNIMethod *jmeth = reinterpret_cast<_Jv_JNIMethod *> (meth);
1495 jmeth->set_function (methods[i].fnPtr);
1503 jstring m = JvNewStringUTF (methods[j].name);
1506 env->ex =new java::lang::NoSuchMethodError (m);
1508 catch (jthrowable t)
1517 #else /* INTERPRETER */
1519 #endif /* INTERPRETER */
1523 _Jv_JNI_UnregisterNatives (JNIEnv *, jclass)
1532 // Add a character to the buffer, encoding properly.
1534 add_char (char *buf, jchar c, int *here)
1538 buf[(*here)++] = '_';
1539 buf[(*here)++] = '1';
1543 buf[(*here)++] = '_';
1544 buf[(*here)++] = '2';
1548 buf[(*here)++] = '_';
1549 buf[(*here)++] = '3';
1552 buf[(*here)++] = '_';
1553 else if ((c >= '0' && c <= '9')
1554 || (c >= 'a' && c <= 'z')
1555 || (c >= 'A' && c <= 'Z'))
1556 buf[(*here)++] = (char) c;
1559 // "Unicode" character.
1560 buf[(*here)++] = '_';
1561 buf[(*here)++] = '0';
1562 for (int i = 0; i < 4; ++i)
1565 buf[(*here) + 4 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1572 // Compute a mangled name for a native function. This computes the
1573 // long name, and also returns an index which indicates where a NUL
1574 // can be placed to create the short name. This function assumes that
1575 // the buffer is large enough for its results.
1577 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1578 _Jv_Utf8Const *signature, char *buf, int *long_start)
1580 strcpy (buf, "Java_");
1583 // Add fully qualified class name.
1584 jchar *chars = _Jv_GetStringChars (klass->getName ());
1585 jint len = klass->getName ()->length ();
1586 for (int i = 0; i < len; ++i)
1587 add_char (buf, chars[i], &here);
1589 // Don't use add_char because we need a literal `_'.
1592 const unsigned char *fn = (const unsigned char *) func_name->data;
1593 const unsigned char *limit = fn + func_name->length;
1594 for (int i = 0; ; ++i)
1596 int ch = UTF8_GET (fn, limit);
1599 add_char (buf, ch, &here);
1602 // This is where the long signature begins.
1607 const unsigned char *sig = (const unsigned char *) signature->data;
1608 limit = sig + signature->length;
1609 JvAssert (signature[0] == '(');
1613 int ch = UTF8_GET (sig, limit);
1614 if (ch == ')' || ch < 0)
1616 add_char (buf, ch, &here);
1622 // Return the current thread's JNIEnv; if one does not exist, create
1623 // it. Also create a new system frame for use. This is `extern "C"'
1624 // because the compiler calls it.
1626 _Jv_GetJNIEnvNewFrame (jclass klass)
1628 JNIEnv *env = _Jv_GetCurrentJNIEnv ();
1631 env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1632 env->p = &_Jv_JNIFunctions;
1637 _Jv_SetCurrentJNIEnv (env);
1640 _Jv_JNI_LocalFrame *frame
1641 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1643 * sizeof (jobject)));
1645 frame->marker = MARK_SYSTEM;
1646 frame->size = FRAME_SIZE;
1647 frame->next = env->locals;
1648 env->locals = frame;
1650 for (int i = 0; i < frame->size; ++i)
1651 frame->vec[i] = NULL;
1656 // Return the function which implements a particular JNI method. If
1657 // we can't find the function, we throw the appropriate exception.
1658 // This is `extern "C"' because the compiler uses it.
1660 _Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
1661 _Jv_Utf8Const *signature)
1663 char buf[10 + 6 * (name->length + signature->length)];
1667 mangled_name (klass, name, signature, buf, &long_start);
1668 char c = buf[long_start];
1669 buf[long_start] = '\0';
1670 function = _Jv_FindSymbolInExecutable (buf);
1671 if (function == NULL)
1673 buf[long_start] = c;
1674 function = _Jv_FindSymbolInExecutable (buf);
1675 if (function == NULL)
1677 jstring str = JvNewStringUTF (name->data);
1678 JvThrow (new java::lang::AbstractMethodError (str));
1685 // This function is the stub which is used to turn an ordinary (CNI)
1686 // method call into a JNI call.
1688 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
1690 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
1692 JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
1694 // FIXME: we should mark every reference parameter as a local. For
1695 // now we assume a conservative GC, and we assume that the
1696 // references are on the stack somewhere.
1698 // We cache the value that we find, of course, but if we don't find
1699 // a value we don't cache that fact -- we might subsequently load a
1700 // library which finds the function in question.
1701 if (_this->function == NULL)
1702 _this->function = _Jv_LookupJNIMethod (_this->defining_class,
1704 _this->self->signature);
1706 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
1707 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
1710 // First argument is always the environment pointer.
1711 real_args[offset++].ptr = env;
1713 // For a static method, we pass in the Class. For non-static
1714 // methods, the `this' argument is already handled.
1715 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
1716 real_args[offset++].ptr = _this->defining_class;
1718 // Copy over passed-in arguments.
1719 memcpy (&real_args[offset], args, _this->args_raw_size);
1721 // The actual call to the JNI function.
1722 ffi_raw_call (&_this->jni_cif, (void (*) (...)) _this->function,
1725 _Jv_JNI_PopSystemFrame (env);
1731 #endif /* INTERPRETER */
1739 // An internal helper function.
1741 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv, void *args)
1743 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
1744 java::lang::ThreadGroup *group = NULL;
1748 // FIXME: do we really want to support 1.1?
1749 if (attach->version != JNI_VERSION_1_2
1750 && attach->version != JNI_VERSION_1_1)
1751 return JNI_EVERSION;
1753 JvAssert ((&ThreadGroupClass)->isInstance (attach->group));
1754 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
1757 // Attaching an already-attached thread is a no-op.
1758 if (_Jv_GetCurrentJNIEnv () != NULL)
1761 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1764 env->p = &_Jv_JNIFunctions;
1768 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1770 * sizeof (jobject)));
1771 if (env->locals == NULL)
1776 *penv = reinterpret_cast<void *> (env);
1778 // This thread might already be a Java thread -- this function might
1779 // have been called simply to set the new JNIEnv.
1780 if (_Jv_ThreadCurrent () == NULL)
1784 (void) new gnu::gcj::jni::NativeThread (group, name);
1786 catch (jthrowable t)
1791 _Jv_SetCurrentJNIEnv (env);
1796 // This is the one actually used by JNI.
1798 _Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
1800 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args);
1804 _Jv_JNI_DestroyJavaVM (JavaVM *vm)
1806 JvAssert (the_vm && vm == the_vm);
1809 if (_Jv_ThreadCurrent () != NULL)
1815 main_name = JvNewStringLatin1 ("main");
1817 catch (jthrowable t)
1822 jint r = _Jv_JNI_AttachCurrentThread (vm,
1824 reinterpret_cast<void **> (&env),
1830 env = _Jv_GetCurrentJNIEnv ();
1834 // Docs say that this always returns an error code.
1839 _Jv_JNI_DetachCurrentThread (JavaVM *)
1841 java::lang::Thread *t = _Jv_ThreadCurrent ();
1843 return JNI_EDETACHED;
1845 // FIXME: we only allow threads attached via AttachCurrentThread to
1846 // be detached. I have no idea how we could implement detaching
1847 // other threads, given the requirement that we must release all the
1848 // monitors. That just seems evil.
1849 JvAssert ((&NativeThreadClass)->isInstance (t));
1851 // FIXME: release the monitors. We'll take this to mean all
1852 // monitors acquired via the JNI interface. This means we have to
1853 // keep track of them.
1855 gnu::gcj::jni::NativeThread *nt
1856 = reinterpret_cast<gnu::gcj::jni::NativeThread *> (t);
1863 _Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
1865 if (_Jv_ThreadCurrent () == NULL)
1868 return JNI_EDETACHED;
1871 // FIXME: do we really want to support 1.1?
1872 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_1)
1875 return JNI_EVERSION;
1878 *penv = (void *) _Jv_GetCurrentJNIEnv ();
1883 JNI_GetDefaultJavaVMInitArgs (void *args)
1885 jint version = * (jint *) args;
1886 // Here we only support 1.2.
1887 if (version != JNI_VERSION_1_2)
1888 return JNI_EVERSION;
1890 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1891 ia->version = JNI_VERSION_1_2;
1894 ia->ignoreUnrecognized = true;
1900 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
1902 JvAssert (! the_vm);
1903 // FIXME: synchronize
1904 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1907 nvm->functions = &_Jv_JNI_InvokeFunctions;
1909 // Parse the arguments.
1912 jint version = * (jint *) args;
1913 // We only support 1.2.
1914 if (version != JNI_VERSION_1_2)
1915 return JNI_EVERSION;
1916 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1917 for (int i = 0; i < ia->nOptions; ++i)
1919 if (! strcmp (ia->options[i].optionString, "vfprintf")
1920 || ! strcmp (ia->options[i].optionString, "exit")
1921 || ! strcmp (ia->options[i].optionString, "abort"))
1923 // We are required to recognize these, but for now we
1924 // don't handle them in any way. FIXME.
1927 else if (! strncmp (ia->options[i].optionString,
1928 "-verbose", sizeof ("-verbose") - 1))
1930 // We don't do anything with this option either. We
1931 // might want to make sure the argument is valid, but we
1932 // don't really care all that much for now.
1935 else if (! strncmp (ia->options[i].optionString, "-D", 2))
1940 else if (ia->ignoreUnrecognized)
1942 if (ia->options[i].optionString[0] == '_'
1943 || ! strncmp (ia->options[i].optionString, "-X", 2))
1951 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
1961 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize /* buf_len */, jsize *n_vms)
1963 JvAssert (buf_len > 0);
1964 // We only support a single VM.
1967 vm_buffer[0] = the_vm;
1978 // FIXME: synchronize
1981 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1983 nvm->functions = &_Jv_JNI_InvokeFunctions;
1987 // If this is a Java thread, we want to make sure it has an
1988 // associated JNIEnv.
1989 if (_Jv_ThreadCurrent () != NULL)
1992 _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
1999 _Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
2001 *vm = _Jv_GetJavaVM ();
2002 return *vm == NULL ? JNI_ERR : JNI_OK;
2007 #define NOT_IMPL NULL
2008 #define RESERVED NULL
2010 struct JNINativeInterface _Jv_JNIFunctions =
2017 _Jv_JNI_DefineClass,
2019 _Jv_JNI_FromReflectedMethod,
2020 _Jv_JNI_FromReflectedField,
2021 _Jv_JNI_ToReflectedMethod,
2022 _Jv_JNI_GetSuperclass,
2023 _Jv_JNI_IsAssignableFrom,
2024 _Jv_JNI_ToReflectedField,
2027 _Jv_JNI_ExceptionOccurred,
2028 _Jv_JNI_ExceptionDescribe,
2029 _Jv_JNI_ExceptionClear,
2032 _Jv_JNI_PushLocalFrame,
2033 _Jv_JNI_PopLocalFrame,
2034 _Jv_JNI_NewGlobalRef,
2035 _Jv_JNI_DeleteGlobalRef,
2036 _Jv_JNI_DeleteLocalRef,
2038 _Jv_JNI_IsSameObject,
2040 _Jv_JNI_NewLocalRef,
2041 _Jv_JNI_EnsureLocalCapacity,
2043 _Jv_JNI_AllocObject,
2047 _Jv_JNI_GetObjectClass,
2048 _Jv_JNI_IsInstanceOf,
2049 _Jv_JNI_GetAnyMethodID<false>,
2051 _Jv_JNI_CallMethod<jobject>,
2052 _Jv_JNI_CallMethodV<jobject>,
2053 _Jv_JNI_CallMethodA<jobject>,
2054 _Jv_JNI_CallMethod<jboolean>,
2055 _Jv_JNI_CallMethodV<jboolean>,
2056 _Jv_JNI_CallMethodA<jboolean>,
2057 _Jv_JNI_CallMethod<jbyte>,
2058 _Jv_JNI_CallMethodV<jbyte>,
2059 _Jv_JNI_CallMethodA<jbyte>,
2060 _Jv_JNI_CallMethod<jchar>,
2061 _Jv_JNI_CallMethodV<jchar>,
2062 _Jv_JNI_CallMethodA<jchar>,
2063 _Jv_JNI_CallMethod<jshort>,
2064 _Jv_JNI_CallMethodV<jshort>,
2065 _Jv_JNI_CallMethodA<jshort>,
2066 _Jv_JNI_CallMethod<jint>,
2067 _Jv_JNI_CallMethodV<jint>,
2068 _Jv_JNI_CallMethodA<jint>,
2069 _Jv_JNI_CallMethod<jlong>,
2070 _Jv_JNI_CallMethodV<jlong>,
2071 _Jv_JNI_CallMethodA<jlong>,
2072 _Jv_JNI_CallMethod<jfloat>,
2073 _Jv_JNI_CallMethodV<jfloat>,
2074 _Jv_JNI_CallMethodA<jfloat>,
2075 _Jv_JNI_CallMethod<jdouble>,
2076 _Jv_JNI_CallMethodV<jdouble>,
2077 _Jv_JNI_CallMethodA<jdouble>,
2078 _Jv_JNI_CallVoidMethod,
2079 _Jv_JNI_CallVoidMethodV,
2080 _Jv_JNI_CallVoidMethodA,
2082 // Nonvirtual method invocation functions follow.
2083 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>,
2084 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>,
2085 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>,
2086 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>,
2087 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>,
2088 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>,
2089 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>,
2090 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>,
2091 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>,
2092 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>,
2093 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>,
2094 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>,
2095 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>,
2096 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>,
2097 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>,
2098 _Jv_JNI_CallAnyMethod<jint, nonvirtual>,
2099 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>,
2100 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>,
2101 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>,
2102 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>,
2103 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>,
2104 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>,
2105 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>,
2106 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>,
2107 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>,
2108 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>,
2109 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>,
2110 _Jv_JNI_CallAnyVoidMethod<nonvirtual>,
2111 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>,
2112 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>,
2114 _Jv_JNI_GetAnyFieldID<false>,
2115 _Jv_JNI_GetField<jobject>,
2116 _Jv_JNI_GetField<jboolean>,
2117 _Jv_JNI_GetField<jbyte>,
2118 _Jv_JNI_GetField<jchar>,
2119 _Jv_JNI_GetField<jshort>,
2120 _Jv_JNI_GetField<jint>,
2121 _Jv_JNI_GetField<jlong>,
2122 _Jv_JNI_GetField<jfloat>,
2123 _Jv_JNI_GetField<jdouble>,
2133 _Jv_JNI_GetAnyMethodID<true>,
2135 _Jv_JNI_CallStaticMethod<jobject>,
2136 _Jv_JNI_CallStaticMethodV<jobject>,
2137 _Jv_JNI_CallStaticMethodA<jobject>,
2138 _Jv_JNI_CallStaticMethod<jboolean>,
2139 _Jv_JNI_CallStaticMethodV<jboolean>,
2140 _Jv_JNI_CallStaticMethodA<jboolean>,
2141 _Jv_JNI_CallStaticMethod<jbyte>,
2142 _Jv_JNI_CallStaticMethodV<jbyte>,
2143 _Jv_JNI_CallStaticMethodA<jbyte>,
2144 _Jv_JNI_CallStaticMethod<jchar>,
2145 _Jv_JNI_CallStaticMethodV<jchar>,
2146 _Jv_JNI_CallStaticMethodA<jchar>,
2147 _Jv_JNI_CallStaticMethod<jshort>,
2148 _Jv_JNI_CallStaticMethodV<jshort>,
2149 _Jv_JNI_CallStaticMethodA<jshort>,
2150 _Jv_JNI_CallStaticMethod<jint>,
2151 _Jv_JNI_CallStaticMethodV<jint>,
2152 _Jv_JNI_CallStaticMethodA<jint>,
2153 _Jv_JNI_CallStaticMethod<jlong>,
2154 _Jv_JNI_CallStaticMethodV<jlong>,
2155 _Jv_JNI_CallStaticMethodA<jlong>,
2156 _Jv_JNI_CallStaticMethod<jfloat>,
2157 _Jv_JNI_CallStaticMethodV<jfloat>,
2158 _Jv_JNI_CallStaticMethodA<jfloat>,
2159 _Jv_JNI_CallStaticMethod<jdouble>,
2160 _Jv_JNI_CallStaticMethodV<jdouble>,
2161 _Jv_JNI_CallStaticMethodA<jdouble>,
2162 _Jv_JNI_CallStaticVoidMethod,
2163 _Jv_JNI_CallStaticVoidMethodV,
2164 _Jv_JNI_CallStaticVoidMethodA,
2166 _Jv_JNI_GetAnyFieldID<true>,
2167 _Jv_JNI_GetStaticField<jobject>,
2168 _Jv_JNI_GetStaticField<jboolean>,
2169 _Jv_JNI_GetStaticField<jbyte>,
2170 _Jv_JNI_GetStaticField<jchar>,
2171 _Jv_JNI_GetStaticField<jshort>,
2172 _Jv_JNI_GetStaticField<jint>,
2173 _Jv_JNI_GetStaticField<jlong>,
2174 _Jv_JNI_GetStaticField<jfloat>,
2175 _Jv_JNI_GetStaticField<jdouble>,
2176 _Jv_JNI_SetStaticField,
2177 _Jv_JNI_SetStaticField,
2178 _Jv_JNI_SetStaticField,
2179 _Jv_JNI_SetStaticField,
2180 _Jv_JNI_SetStaticField,
2181 _Jv_JNI_SetStaticField,
2182 _Jv_JNI_SetStaticField,
2183 _Jv_JNI_SetStaticField,
2184 _Jv_JNI_SetStaticField,
2186 _Jv_JNI_GetStringLength,
2187 _Jv_JNI_GetStringChars,
2188 _Jv_JNI_ReleaseStringChars,
2189 _Jv_JNI_NewStringUTF,
2190 _Jv_JNI_GetStringUTFLength,
2191 _Jv_JNI_GetStringUTFChars,
2192 _Jv_JNI_ReleaseStringUTFChars,
2193 _Jv_JNI_GetArrayLength,
2194 _Jv_JNI_NewObjectArray,
2195 _Jv_JNI_GetObjectArrayElement,
2196 _Jv_JNI_SetObjectArrayElement,
2197 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
2198 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>,
2199 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>,
2200 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>,
2201 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>,
2202 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>,
2203 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>,
2204 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>,
2205 _Jv_JNI_GetPrimitiveArrayElements,
2206 _Jv_JNI_GetPrimitiveArrayElements,
2207 _Jv_JNI_GetPrimitiveArrayElements,
2208 _Jv_JNI_GetPrimitiveArrayElements,
2209 _Jv_JNI_GetPrimitiveArrayElements,
2210 _Jv_JNI_GetPrimitiveArrayElements,
2211 _Jv_JNI_GetPrimitiveArrayElements,
2212 _Jv_JNI_GetPrimitiveArrayElements,
2213 _Jv_JNI_ReleasePrimitiveArrayElements,
2214 _Jv_JNI_ReleasePrimitiveArrayElements,
2215 _Jv_JNI_ReleasePrimitiveArrayElements,
2216 _Jv_JNI_ReleasePrimitiveArrayElements,
2217 _Jv_JNI_ReleasePrimitiveArrayElements,
2218 _Jv_JNI_ReleasePrimitiveArrayElements,
2219 _Jv_JNI_ReleasePrimitiveArrayElements,
2220 _Jv_JNI_ReleasePrimitiveArrayElements,
2221 _Jv_JNI_GetPrimitiveArrayRegion,
2222 _Jv_JNI_GetPrimitiveArrayRegion,
2223 _Jv_JNI_GetPrimitiveArrayRegion,
2224 _Jv_JNI_GetPrimitiveArrayRegion,
2225 _Jv_JNI_GetPrimitiveArrayRegion,
2226 _Jv_JNI_GetPrimitiveArrayRegion,
2227 _Jv_JNI_GetPrimitiveArrayRegion,
2228 _Jv_JNI_GetPrimitiveArrayRegion,
2229 _Jv_JNI_SetPrimitiveArrayRegion,
2230 _Jv_JNI_SetPrimitiveArrayRegion,
2231 _Jv_JNI_SetPrimitiveArrayRegion,
2232 _Jv_JNI_SetPrimitiveArrayRegion,
2233 _Jv_JNI_SetPrimitiveArrayRegion,
2234 _Jv_JNI_SetPrimitiveArrayRegion,
2235 _Jv_JNI_SetPrimitiveArrayRegion,
2236 _Jv_JNI_SetPrimitiveArrayRegion,
2237 _Jv_JNI_RegisterNatives,
2238 _Jv_JNI_UnregisterNatives,
2239 _Jv_JNI_MonitorEnter,
2240 _Jv_JNI_MonitorExit,
2243 _Jv_JNI_GetStringRegion,
2244 _Jv_JNI_GetStringUTFRegion,
2245 _Jv_JNI_GetPrimitiveArrayCritical,
2246 _Jv_JNI_ReleasePrimitiveArrayCritical,
2247 _Jv_JNI_GetStringCritical,
2248 _Jv_JNI_ReleaseStringCritical,
2250 NOT_IMPL /* newweakglobalref */,
2251 NOT_IMPL /* deleteweakglobalref */,
2253 _Jv_JNI_ExceptionCheck
2256 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
2262 _Jv_JNI_DestroyJavaVM,
2263 _Jv_JNI_AttachCurrentThread,
2264 _Jv_JNI_DetachCurrentThread,