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 // This structure is used to keep track of local references.
79 struct _Jv_JNI_LocalFrame
81 // This is true if this frame object represents a pushed frame (eg
82 // from PushLocalFrame).
85 // Number of elements in frame.
88 // Next frame in chain.
89 _Jv_JNI_LocalFrame *next;
91 // The elements. These are allocated using the C "struct hack".
95 // This holds a reference count for all local and global references.
96 static java::util::Hashtable *ref_table;
99 static JavaVM *the_vm;
106 ref_table = new java::util::Hashtable;
109 // Tell the GC that a certain pointer is live.
111 mark_for_gc (jobject obj)
113 JvSynchronize sync (ref_table);
115 using namespace java::lang;
116 Integer *refcount = (Integer *) ref_table->get (obj);
117 jint val = (refcount == NULL) ? 0 : refcount->intValue ();
118 ref_table->put (obj, new Integer (val + 1));
123 unmark_for_gc (jobject obj)
125 JvSynchronize sync (ref_table);
127 using namespace java::lang;
128 Integer *refcount = (Integer *) ref_table->get (obj);
130 jint val = refcount->intValue () - 1;
132 ref_table->remove (obj);
134 ref_table->put (obj, new Integer (val));
140 _Jv_JNI_NewGlobalRef (JNIEnv *, jobject obj)
147 _Jv_JNI_DeleteGlobalRef (JNIEnv *, jobject obj)
153 _Jv_JNI_DeleteLocalRef (JNIEnv *env, jobject obj)
155 _Jv_JNI_LocalFrame *frame;
157 for (frame = env->locals; frame != NULL; frame = frame->next)
159 for (int i = 0; i < FRAME_SIZE; ++i)
161 if (frame->vec[i] == obj)
163 frame->vec[i] = NULL;
169 // Don't go past a marked frame.
170 JvAssert (! frame->marker);
177 _Jv_JNI_EnsureLocalCapacity (JNIEnv *env, jint size)
179 // It is easier to just always allocate a new frame of the requested
180 // size. This isn't the most efficient thing, but for now we don't
181 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
183 _Jv_JNI_LocalFrame *frame
184 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
185 + size * sizeof (jobject));
188 // FIXME: exception processing.
189 env->ex = new java::lang::OutOfMemoryError;
193 frame->marker = true;
195 memset (&frame->vec[0], 0, size * sizeof (jobject));
196 frame->next = env->locals;
203 _Jv_JNI_PushLocalFrame (JNIEnv *env, jint size)
205 jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
209 // The new frame is on top.
210 env->locals->marker = true;
216 _Jv_JNI_NewLocalRef (JNIEnv *env, jobject obj)
218 // Try to find an open slot somewhere in the topmost frame.
219 _Jv_JNI_LocalFrame *frame = env->locals;
220 bool done = false, set = false;
221 while (frame != NULL && ! done)
223 for (int i = 0; i < frame->size; ++i)
224 if (frame->vec[i] == NULL)
235 // No slots, so we allocate a new frame. According to the spec
236 // we could just die here. FIXME: return value.
237 _Jv_JNI_EnsureLocalCapacity (env, 16);
238 // We know the first element of the new frame will be ok.
239 env->locals->vec[0] = obj;
247 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result)
249 _Jv_JNI_LocalFrame *rf = env->locals;
252 while (rf != NULL && ! done)
254 for (int i = 0; i < rf->size; ++i)
255 if (rf->vec[i] != NULL)
256 unmark_for_gc (rf->vec[i]);
258 // If the frame we just freed is the marker frame, we are done.
261 _Jv_JNI_LocalFrame *n = rf->next;
262 // When N==NULL, we've reached the stack-allocated frame, and we
263 // must not free it. However, we must be sure to clear all its
264 // elements, since we might conceivably reuse it.
267 memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
275 return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
278 // This function is used from other template functions. It wraps the
279 // return value appropriately; we specialize it so that object returns
280 // are turned into local references.
283 wrap_value (JNIEnv *, T value)
290 wrap_value (JNIEnv *env, jobject value)
292 return value == NULL ? value : _Jv_JNI_NewLocalRef (env, value);
298 _Jv_JNI_GetVersion (JNIEnv *)
300 return JNI_VERSION_1_2;
304 _Jv_JNI_DefineClass (JNIEnv *env, jobject loader,
305 const jbyte *buf, jsize bufLen)
307 jbyteArray bytes = JvNewByteArray (bufLen);
308 jbyte *elts = elements (bytes);
309 memcpy (elts, buf, bufLen * sizeof (jbyte));
311 java::lang::ClassLoader *l
312 = reinterpret_cast<java::lang::ClassLoader *> (loader);
314 // FIXME: exception processing.
315 jclass result = l->defineClass (bytes, 0, bufLen);
316 return (jclass) wrap_value (env, result);
320 _Jv_JNI_FindClass (JNIEnv *env, const char *name)
322 // FIXME: assume that NAME isn't too long.
323 int len = strlen (name);
325 for (int i = 0; i <= len; ++i)
326 s[i] = (name[i] == '/') ? '.' : name[i];
327 jstring n = JvNewStringUTF (s);
329 java::lang::ClassLoader *loader;
330 if (env->klass == NULL)
332 // FIXME: should use getBaseClassLoader, but we don't have that
334 loader = java::lang::ClassLoader::getSystemClassLoader ();
337 loader = env->klass->getClassLoader ();
339 // FIXME: exception processing.
340 jclass r = loader->findClass (n);
342 return (jclass) wrap_value (env, r);
346 _Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
348 return (jclass) wrap_value (env, clazz->getSuperclass ());
352 _Jv_JNI_IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
354 return clazz1->isAssignableFrom (clazz2);
358 _Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
360 // We check in case the user did some funky cast.
361 JvAssert (obj != NULL && (&ThrowableClass)->isInstance (obj));
367 _Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
369 using namespace java::lang::reflect;
371 JvAssert ((&ThrowableClass)->isAssignableFrom (clazz));
373 JArray<jclass> *argtypes
374 = (JArray<jclass> *) JvNewObjectArray (1, &ClassClass, NULL);
376 jclass *elts = elements (argtypes);
377 elts[0] = &StringClass;
379 // FIXME: exception processing.
380 Constructor *cons = clazz->getConstructor (argtypes);
382 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
383 jobject *velts = elements (values);
384 velts[0] = JvNewStringUTF (message);
386 // FIXME: exception processing.
387 jobject obj = cons->newInstance (values);
389 env->ex = reinterpret_cast<jthrowable> (obj);
394 _Jv_JNI_ExceptionOccurred (JNIEnv *env)
396 return (jthrowable) wrap_value (env, env->ex);
400 _Jv_JNI_ExceptionDescribe (JNIEnv *env)
403 env->ex->printStackTrace();
407 _Jv_JNI_ExceptionClear (JNIEnv *env)
413 _Jv_JNI_ExceptionCheck (JNIEnv *env)
415 return env->ex != NULL;
419 _Jv_JNI_FatalError (JNIEnv *, const char *message)
427 _Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
433 _Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
436 using namespace java::lang::reflect;
438 JvAssert (clazz && ! clazz->isArray ());
439 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
440 env->ex = new java::lang::InstantiationException ();
443 // FIXME: exception processing.
444 // FIXME: will this work for String?
445 obj = JvAllocObject (clazz);
448 return wrap_value (env, obj);
452 _Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
455 return (jclass) wrap_value (env, obj->getClass());
459 _Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
461 return clazz->isInstance(obj);
467 // This section concerns method invocation.
470 template<jboolean is_static>
472 _Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
473 const char *name, const char *sig)
475 // FIXME: exception processing.
476 _Jv_InitClass (clazz);
478 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
479 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
481 JvAssert (! clazz->isPrimitive());
483 using namespace java::lang::reflect;
485 while (clazz != NULL)
487 jint count = JvNumMethods (clazz);
488 jmethodID meth = JvGetFirstMethod (clazz);
490 for (jint i = 0; i < count; ++i)
492 if (((is_static && Modifier::isStatic (meth->accflags))
493 || (! is_static && ! Modifier::isStatic (meth->accflags)))
494 && _Jv_equalUtf8Consts (meth->name, name_u)
495 && _Jv_equalUtf8Consts (meth->signature, sig_u))
498 meth = meth->getNextMethod();
501 clazz = clazz->getSuperclass ();
504 env->ex = new java::lang::NoSuchMethodError ();
508 // This is a helper function which turns a va_list into an array of
509 // `jvalue's. It needs signature information in order to do its work.
510 // The array of values must already be allocated.
512 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
514 jclass *arg_elts = elements (arg_types);
515 for (int i = 0; i < arg_types->length; ++i)
517 if (arg_elts[i] == JvPrimClass (byte))
518 values[i].b = va_arg (vargs, jbyte);
519 else if (arg_elts[i] == JvPrimClass (short))
520 values[i].s = va_arg (vargs, jshort);
521 else if (arg_elts[i] == JvPrimClass (int))
522 values[i].i = va_arg (vargs, jint);
523 else if (arg_elts[i] == JvPrimClass (long))
524 values[i].j = va_arg (vargs, jlong);
525 else if (arg_elts[i] == JvPrimClass (float))
526 values[i].f = va_arg (vargs, jfloat);
527 else if (arg_elts[i] == JvPrimClass (double))
528 values[i].d = va_arg (vargs, jdouble);
529 else if (arg_elts[i] == JvPrimClass (boolean))
530 values[i].z = va_arg (vargs, jboolean);
531 else if (arg_elts[i] == JvPrimClass (char))
532 values[i].c = va_arg (vargs, jchar);
536 values[i].l = va_arg (vargs, jobject);
541 // This can call any sort of method: virtual, "nonvirtual", static, or
543 template<typename T, invocation_type style>
545 _Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
546 jmethodID id, va_list vargs)
549 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
551 jclass decl_class = klass ? klass : obj->getClass ();
552 JvAssert (decl_class != NULL);
555 JArray<jclass> *arg_types;
556 // FIXME: exception processing.
557 _Jv_GetTypesFromSignature (id, decl_class,
558 &arg_types, &return_type);
560 jvalue args[arg_types->length];
561 array_from_valist (args, arg_types, vargs);
564 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
565 style == constructor,
566 arg_types, args, &result);
571 // We cheat a little here. FIXME.
572 return wrap_value (env, * (T *) &result);
575 template<typename T, invocation_type style>
577 _Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
578 jmethodID method, ...)
583 va_start (args, method);
584 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
590 template<typename T, invocation_type style>
592 _Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
593 jmethodID id, jvalue *args)
596 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
598 jclass decl_class = klass ? klass : obj->getClass ();
599 JvAssert (decl_class != NULL);
602 JArray<jclass> *arg_types;
603 // FIXME: exception processing.
604 _Jv_GetTypesFromSignature (id, decl_class,
605 &arg_types, &return_type);
608 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
609 style == constructor,
610 arg_types, args, &result);
615 // We cheat a little here. FIXME.
616 return wrap_value (env, * (T *) &result);
619 template<invocation_type style>
621 _Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
622 jmethodID id, va_list vargs)
625 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
627 jclass decl_class = klass ? klass : obj->getClass ();
628 JvAssert (decl_class != NULL);
631 JArray<jclass> *arg_types;
632 // FIXME: exception processing.
633 _Jv_GetTypesFromSignature (id, decl_class,
634 &arg_types, &return_type);
636 jvalue args[arg_types->length];
637 array_from_valist (args, arg_types, vargs);
639 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
640 style == constructor,
641 arg_types, args, NULL);
647 template<invocation_type style>
649 _Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
650 jmethodID method, ...)
654 va_start (args, method);
655 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
659 template<invocation_type style>
661 _Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
662 jmethodID id, jvalue *args)
665 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
667 jclass decl_class = klass ? klass : obj->getClass ();
668 JvAssert (decl_class != NULL);
671 JArray<jclass> *arg_types;
672 // FIXME: exception processing.
673 _Jv_GetTypesFromSignature (id, decl_class,
674 &arg_types, &return_type);
676 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
677 style == constructor,
678 arg_types, args, NULL);
684 // Functions with this signature are used to implement functions in
685 // the CallMethod family.
688 _Jv_JNI_CallMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
690 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
693 // Functions with this signature are used to implement functions in
694 // the CallMethod family.
697 _Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
703 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
709 // Functions with this signature are used to implement functions in
710 // the CallMethod family.
713 _Jv_JNI_CallMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
715 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
719 _Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
721 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
725 _Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
730 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
735 _Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
737 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
740 // Functions with this signature are used to implement functions in
741 // the CallStaticMethod family.
744 _Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
745 jmethodID id, va_list args)
747 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
750 // Functions with this signature are used to implement functions in
751 // the CallStaticMethod family.
754 _Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
760 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
767 // Functions with this signature are used to implement functions in
768 // the CallStaticMethod family.
771 _Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
774 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
778 _Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass, jmethodID id,
781 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
785 _Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
790 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
795 _Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass, jmethodID id,
798 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
802 _Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
803 jmethodID id, va_list args)
805 JvAssert (klass && ! klass->isArray ());
806 JvAssert (! strcmp (id->name->data, "<init>")
807 && ! strcmp (id->signature->data, "()V"));
808 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
813 _Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
815 JvAssert (klass && ! klass->isArray ());
816 JvAssert (! strcmp (id->name->data, "<init>")
817 && ! strcmp (id->signature->data, "()V"));
823 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
831 _Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
834 JvAssert (klass && ! klass->isArray ());
835 JvAssert (! strcmp (id->name->data, "<init>")
836 && ! strcmp (id->signature->data, "()V"));
837 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
845 _Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
848 T *ptr = (T *) ((char *) obj + field->getOffset ());
849 return wrap_value (env, *ptr);
854 _Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
857 T *ptr = (T *) ((char *) obj + field->getOffset ());
861 template<jboolean is_static>
863 _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
864 const char *name, const char *sig)
866 // FIXME: exception processing.
867 _Jv_InitClass (clazz);
869 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
871 jclass field_class = NULL;
873 field_class = _Jv_FindClassFromSignature ((char *) sig, NULL);
876 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
877 field_class = _Jv_FindClass (sig_u, NULL);
880 // FIXME: what if field_class == NULL?
882 while (clazz != NULL)
884 jint count = (is_static
885 ? JvNumStaticFields (clazz)
886 : JvNumInstanceFields (clazz));
887 jfieldID field = (is_static
888 ? JvGetFirstStaticField (clazz)
889 : JvGetFirstInstanceField (clazz));
890 for (jint i = 0; i < count; ++i)
892 // The field is resolved as a side effect of class
894 JvAssert (field->isResolved ());
896 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
898 if (_Jv_equalUtf8Consts (f_name, a_name)
899 && field->getClass() == field_class)
902 field = field->getNextField ();
905 clazz = clazz->getSuperclass ();
908 env->ex = new java::lang::NoSuchFieldError ();
914 _Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
916 T *ptr = (T *) field->u.addr;
917 return wrap_value (env, *ptr);
922 _Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
924 T *ptr = (T *) field->u.addr;
929 _Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
931 // FIXME: exception processing.
932 jstring r = _Jv_NewString (unichars, len);
933 return (jstring) wrap_value (env, r);
937 _Jv_JNI_GetStringLength (JNIEnv *, jstring string)
939 return string->length();
943 _Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
945 jchar *result = _Jv_GetStringChars (string);
946 mark_for_gc (string);
949 return (const jchar *) result;
953 _Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
955 unmark_for_gc (string);
959 _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
961 // FIXME: exception processing.
962 jstring result = JvNewStringUTF (bytes);
963 return (jstring) wrap_value (env, result);
967 _Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
969 return JvGetStringUTFLength (string);
973 _Jv_JNI_GetStringUTFChars (JNIEnv *, jstring string, jboolean *isCopy)
975 jsize len = JvGetStringUTFLength (string);
976 // FIXME: exception processing.
977 char *r = (char *) _Jv_Malloc (len + 1);
978 JvGetStringUTFRegion (string, 0, len, r);
984 return (const char *) r;
988 _Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
990 _Jv_Free ((void *) utf);
994 _Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start, jsize len,
997 jchar *result = _Jv_GetStringChars (string);
998 if (start < 0 || start > string->length ()
999 || len < 0 || start + len > string->length ())
1000 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1002 memcpy (buf, &result[start], len * sizeof (jchar));
1006 _Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
1007 jsize len, char *buf)
1009 if (start < 0 || start > str->length ()
1010 || len < 0 || start + len > str->length ())
1011 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1013 _Jv_GetStringUTFRegion (str, start, len, buf);
1016 static const jchar *
1017 _Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
1019 jchar *result = _Jv_GetStringChars (str);
1026 _Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
1032 _Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
1034 return array->length;
1038 _Jv_JNI_NewObjectArray (JNIEnv *env, jsize length, jclass elementClass,
1041 // FIXME: exception processing.
1042 jarray result = JvNewObjectArray (length, elementClass, init);
1043 return (jarray) wrap_value (env, result);
1047 _Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index)
1049 jobject *elts = elements (array);
1050 return wrap_value (env, elts[index]);
1054 _Jv_JNI_SetObjectArrayElement (JNIEnv *, jobjectArray array, jsize index,
1057 // FIXME: exception processing.
1058 _Jv_CheckArrayStore (array, value);
1059 jobject *elts = elements (array);
1060 elts[index] = value;
1063 template<typename T, jclass K>
1065 _Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
1067 // FIXME: exception processing.
1068 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1071 template<typename T>
1073 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1076 T *elts = elements (array);
1079 // We elect never to copy.
1082 mark_for_gc (array);
1086 template<typename T>
1088 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1089 T *, jint /* mode */)
1091 // Note that we ignore MODE. We can do this because we never copy
1092 // the array elements. My reading of the JNI documentation is that
1093 // this is an option for the implementor.
1094 unmark_for_gc (array);
1097 template<typename T>
1099 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1100 jsize start, jsize len,
1103 if (start < 0 || len >= array->length || start + len >= array->length)
1106 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1110 T *elts = elements (array) + start;
1111 memcpy (buf, elts, len * sizeof (T));
1115 template<typename T>
1117 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1118 jsize start, jsize len, T *buf)
1120 if (start < 0 || len >= array->length || start + len >= array->length)
1123 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1127 T *elts = elements (array) + start;
1128 memcpy (elts, buf, len * sizeof (T));
1133 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
1136 // FIXME: does this work?
1137 jclass klass = array->getClass()->getComponentType();
1138 JvAssert (klass->isPrimitive ());
1139 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1146 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
1152 _Jv_JNI_MonitorEnter (JNIEnv *, jobject obj)
1154 // FIXME: exception processing.
1155 jint r = _Jv_MonitorEnter (obj);
1160 _Jv_JNI_MonitorExit (JNIEnv *, jobject obj)
1162 // FIXME: exception processing.
1163 jint r = _Jv_MonitorExit (obj);
1169 _Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
1172 // FIXME: exception processing.
1173 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1174 field->declaringClass = cls;
1175 field->offset = (char*) fieldID - (char *) cls->fields;
1176 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1177 return wrap_value (env, field);
1182 _Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
1184 using namespace java::lang::reflect;
1186 Field *field = reinterpret_cast<Field *> (f);
1187 return _Jv_FromReflectedField (field);
1191 _Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
1194 using namespace java::lang::reflect;
1197 static _Jv_Utf8Const *init_name = _Jv_makeUtf8Const ("<init>", 6);
1200 if (_Jv_equalUtf8Consts (id->name, init_name))
1203 Constructor *cons = new Constructor ();
1204 cons->offset = (char *) id - (char *) &klass->methods;
1205 cons->declaringClass = klass;
1210 Method *meth = new Method ();
1211 meth->offset = (char *) id - (char *) &klass->methods;
1212 meth->declaringClass = klass;
1216 return wrap_value (env, result);
1220 _Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
1222 using namespace java::lang::reflect;
1223 if ((&MethodClass)->isInstance (method))
1224 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1226 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1233 // Add a character to the buffer, encoding properly.
1235 add_char (char *buf, jchar c, int *here)
1239 buf[(*here)++] = '_';
1240 buf[(*here)++] = '1';
1244 buf[(*here)++] = '_';
1245 buf[(*here)++] = '2';
1249 buf[(*here)++] = '_';
1250 buf[(*here)++] = '3';
1253 buf[(*here)++] = '_';
1254 else if ((c >= '0' && c <= '9')
1255 || (c >= 'a' && c <= 'z')
1256 || (c >= 'A' && c <= 'Z'))
1257 buf[(*here)++] = (char) c;
1260 // "Unicode" character.
1261 buf[(*here)++] = '_';
1262 buf[(*here)++] = '0';
1263 for (int i = 0; i < 4; ++i)
1266 buf[(*here) + 4 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1273 // Compute a mangled name for a native function. This computes the
1274 // long name, and also returns an index which indicates where a NUL
1275 // can be placed to create the short name. This function assumes that
1276 // the buffer is large enough for its results.
1278 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1279 _Jv_Utf8Const *signature, char *buf, int *long_start)
1281 strcpy (buf, "Java_");
1284 // Add fully qualified class name.
1285 jchar *chars = _Jv_GetStringChars (klass->getName ());
1286 jint len = klass->getName ()->length ();
1287 for (int i = 0; i < len; ++i)
1288 add_char (buf, chars[i], &here);
1290 // Don't use add_char because we need a literal `_'.
1293 const unsigned char *fn = (const unsigned char *) func_name->data;
1294 const unsigned char *limit = fn + func_name->length;
1295 for (int i = 0; ; ++i)
1297 int ch = UTF8_GET (fn, limit);
1300 add_char (buf, ch, &here);
1303 // This is where the long signature begins.
1308 const unsigned char *sig = (const unsigned char *) signature->data;
1309 limit = sig + signature->length;
1310 JvAssert (signature[0] == '(');
1314 int ch = UTF8_GET (sig, limit);
1315 if (ch == ')' || ch < 0)
1317 add_char (buf, ch, &here);
1323 // This function is the stub which is used to turn an ordinary (CNI)
1324 // method call into a JNI call.
1326 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
1328 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
1331 _Jv_JNI_LocalFrame *frame
1332 = (_Jv_JNI_LocalFrame *) alloca (sizeof (_Jv_JNI_LocalFrame)
1333 + FRAME_SIZE * sizeof (jobject));
1335 env.p = &_Jv_JNIFunctions;
1337 env.klass = _this->defining_class;
1340 frame->marker = true;
1342 frame->size = FRAME_SIZE;
1343 for (int i = 0; i < frame->size; ++i)
1344 frame->vec[i] = NULL;
1346 // FIXME: we should mark every reference parameter as a local. For
1347 // now we assume a conservative GC, and we assume that the
1348 // references are on the stack somewhere.
1350 // We cache the value that we find, of course, but if we don't find
1351 // a value we don't cache that fact -- we might subsequently load a
1352 // library which finds the function in question.
1353 if (_this->function == NULL)
1355 char buf[10 + 6 * (_this->self->name->length
1356 + _this->self->signature->length)];
1358 mangled_name (_this->defining_class, _this->self->name,
1359 _this->self->signature, buf, &long_start);
1360 char c = buf[long_start];
1361 buf[long_start] = '\0';
1362 _this->function = _Jv_FindSymbolInExecutable (buf);
1363 if (_this->function == NULL)
1365 buf[long_start] = c;
1366 _this->function = _Jv_FindSymbolInExecutable (buf);
1367 if (_this->function == NULL)
1369 jstring str = JvNewStringUTF (_this->self->name->data);
1370 JvThrow (new java::lang::AbstractMethodError (str));
1375 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
1376 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
1379 // First argument is always the environment pointer.
1380 real_args[offset++].ptr = &env;
1382 // For a static method, we pass in the Class. For non-static
1383 // methods, the `this' argument is already handled.
1384 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
1385 real_args[offset++].ptr = _this->defining_class;
1387 // Copy over passed-in arguments.
1388 memcpy (&real_args[offset], args, _this->args_raw_size);
1390 // The actual call to the JNI function.
1391 ffi_raw_call (&_this->jni_cif, (void (*) (...)) _this->function,
1396 _Jv_JNI_PopLocalFrame (&env, NULL);
1398 while (env.locals != frame);
1404 #endif /* INTERPRETER */
1412 // An internal helper function.
1414 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv, void *args)
1416 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
1417 java::lang::ThreadGroup *group = NULL;
1421 // FIXME: do we really want to support 1.1?
1422 if (attach->version != JNI_VERSION_1_2
1423 && attach->version != JNI_VERSION_1_1)
1424 return JNI_EVERSION;
1426 JvAssert ((&ThreadGroupClass)->isInstance (attach->group));
1427 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
1430 // Attaching an already-attached thread is a no-op.
1431 if (_Jv_ThreadCurrent () != NULL)
1434 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1437 env->p = &_Jv_JNIFunctions;
1441 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1443 * sizeof (jobject)));
1444 if (env->locals == NULL)
1449 *penv = reinterpret_cast<void *> (env);
1451 java::lang::Thread *t = new gnu::gcj::jni::NativeThread (group, name);
1452 t = t; // Avoid compiler warning. Eww.
1453 _Jv_SetCurrentJNIEnv (env);
1458 // This is the one actually used by JNI.
1460 _Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
1462 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args);
1466 _Jv_JNI_DestroyJavaVM (JavaVM *vm)
1468 JvAssert (the_vm && vm == the_vm);
1471 if (_Jv_ThreadCurrent () != NULL)
1473 jint r = _Jv_JNI_AttachCurrentThread (vm,
1474 JvNewStringLatin1 ("main"),
1475 reinterpret_cast<void **> (&env),
1481 env = _Jv_GetCurrentJNIEnv ();
1485 // Docs say that this always returns an error code.
1490 _Jv_JNI_DetachCurrentThread (JavaVM *)
1492 java::lang::Thread *t = _Jv_ThreadCurrent ();
1494 return JNI_EDETACHED;
1496 // FIXME: we only allow threads attached via AttachCurrentThread to
1497 // be detached. I have no idea how we could implement detaching
1498 // other threads, given the requirement that we must release all the
1499 // monitors. That just seems evil.
1500 JvAssert ((&NativeThreadClass)->isInstance (t));
1502 // FIXME: release the monitors. We'll take this to mean all
1503 // monitors acquired via the JNI interface. This means we have to
1504 // keep track of them.
1506 gnu::gcj::jni::NativeThread *nt
1507 = reinterpret_cast<gnu::gcj::jni::NativeThread *> (t);
1514 _Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
1516 if (_Jv_ThreadCurrent () == NULL)
1519 return JNI_EDETACHED;
1522 // FIXME: do we really want to support 1.1?
1523 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_1)
1526 return JNI_EVERSION;
1529 *penv = (void *) _Jv_GetCurrentJNIEnv ();
1534 JNI_GetDefaultJavaVMInitArgs (void *args)
1536 jint version = * (jint *) args;
1537 // Here we only support 1.2.
1538 if (version != JNI_VERSION_1_2)
1539 return JNI_EVERSION;
1541 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1542 ia->version = JNI_VERSION_1_2;
1545 ia->ignoreUnrecognized = true;
1551 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
1553 JvAssert (! the_vm);
1554 // FIXME: synchronize
1555 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1558 nvm->functions = &_Jv_JNI_InvokeFunctions;
1560 // Parse the arguments.
1563 jint version = * (jint *) args;
1564 // We only support 1.2.
1565 if (version != JNI_VERSION_1_2)
1566 return JNI_EVERSION;
1567 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1568 for (int i = 0; i < ia->nOptions; ++i)
1570 if (! strcmp (ia->options[i].optionString, "vfprintf")
1571 || ! strcmp (ia->options[i].optionString, "exit")
1572 || ! strcmp (ia->options[i].optionString, "abort"))
1574 // We are required to recognize these, but for now we
1575 // don't handle them in any way. FIXME.
1578 else if (! strncmp (ia->options[i].optionString,
1579 "-verbose", sizeof ("-verbose") - 1))
1581 // We don't do anything with this option either. We
1582 // might want to make sure the argument is valid, but we
1583 // don't really care all that much for now.
1586 else if (! strncmp (ia->options[i].optionString, "-D", 2))
1591 else if (ia->ignoreUnrecognized)
1593 if (ia->options[i].optionString[0] == '_'
1594 || ! strncmp (ia->options[i].optionString, "-X", 2))
1602 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
1612 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
1614 JvAssert (buf_len > 0);
1615 // We only support a single VM.
1618 vm_buffer[0] = the_vm;
1627 _Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
1629 // FIXME: synchronize
1632 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1635 nvm->functions = &_Jv_JNI_InvokeFunctions;
1645 #define NOT_IMPL NULL
1646 #define RESERVED NULL
1648 struct JNINativeInterface _Jv_JNIFunctions =
1655 _Jv_JNI_DefineClass,
1657 _Jv_JNI_FromReflectedMethod,
1658 _Jv_JNI_FromReflectedField,
1659 _Jv_JNI_ToReflectedMethod,
1660 _Jv_JNI_GetSuperclass,
1661 _Jv_JNI_IsAssignableFrom,
1662 _Jv_JNI_ToReflectedField,
1665 _Jv_JNI_ExceptionOccurred,
1666 _Jv_JNI_ExceptionDescribe,
1667 _Jv_JNI_ExceptionClear,
1670 _Jv_JNI_PushLocalFrame,
1671 _Jv_JNI_PopLocalFrame,
1672 _Jv_JNI_NewGlobalRef,
1673 _Jv_JNI_DeleteGlobalRef,
1674 _Jv_JNI_DeleteLocalRef,
1676 _Jv_JNI_IsSameObject,
1678 _Jv_JNI_NewLocalRef,
1679 _Jv_JNI_EnsureLocalCapacity,
1681 _Jv_JNI_AllocObject,
1685 _Jv_JNI_GetObjectClass,
1686 _Jv_JNI_IsInstanceOf,
1687 _Jv_JNI_GetAnyMethodID<false>,
1689 _Jv_JNI_CallMethod<jobject>,
1690 _Jv_JNI_CallMethodV<jobject>,
1691 _Jv_JNI_CallMethodA<jobject>,
1692 _Jv_JNI_CallMethod<jboolean>,
1693 _Jv_JNI_CallMethodV<jboolean>,
1694 _Jv_JNI_CallMethodA<jboolean>,
1695 _Jv_JNI_CallMethod<jbyte>,
1696 _Jv_JNI_CallMethodV<jbyte>,
1697 _Jv_JNI_CallMethodA<jbyte>,
1698 _Jv_JNI_CallMethod<jchar>,
1699 _Jv_JNI_CallMethodV<jchar>,
1700 _Jv_JNI_CallMethodA<jchar>,
1701 _Jv_JNI_CallMethod<jshort>,
1702 _Jv_JNI_CallMethodV<jshort>,
1703 _Jv_JNI_CallMethodA<jshort>,
1704 _Jv_JNI_CallMethod<jint>,
1705 _Jv_JNI_CallMethodV<jint>,
1706 _Jv_JNI_CallMethodA<jint>,
1707 _Jv_JNI_CallMethod<jlong>,
1708 _Jv_JNI_CallMethodV<jlong>,
1709 _Jv_JNI_CallMethodA<jlong>,
1710 _Jv_JNI_CallMethod<jfloat>,
1711 _Jv_JNI_CallMethodV<jfloat>,
1712 _Jv_JNI_CallMethodA<jfloat>,
1713 _Jv_JNI_CallMethod<jdouble>,
1714 _Jv_JNI_CallMethodV<jdouble>,
1715 _Jv_JNI_CallMethodA<jdouble>,
1716 _Jv_JNI_CallVoidMethod,
1717 _Jv_JNI_CallVoidMethodV,
1718 _Jv_JNI_CallVoidMethodA,
1720 // Nonvirtual method invocation functions follow.
1721 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>,
1722 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>,
1723 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>,
1724 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>,
1725 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>,
1726 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>,
1727 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>,
1728 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>,
1729 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>,
1730 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>,
1731 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>,
1732 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>,
1733 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>,
1734 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>,
1735 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>,
1736 _Jv_JNI_CallAnyMethod<jint, nonvirtual>,
1737 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>,
1738 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>,
1739 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>,
1740 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>,
1741 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>,
1742 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>,
1743 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>,
1744 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>,
1745 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>,
1746 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>,
1747 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>,
1748 _Jv_JNI_CallAnyVoidMethod<nonvirtual>,
1749 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>,
1750 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>,
1752 _Jv_JNI_GetAnyFieldID<false>,
1753 _Jv_JNI_GetField<jobject>,
1754 _Jv_JNI_GetField<jboolean>,
1755 _Jv_JNI_GetField<jbyte>,
1756 _Jv_JNI_GetField<jchar>,
1757 _Jv_JNI_GetField<jshort>,
1758 _Jv_JNI_GetField<jint>,
1759 _Jv_JNI_GetField<jlong>,
1760 _Jv_JNI_GetField<jfloat>,
1761 _Jv_JNI_GetField<jdouble>,
1771 _Jv_JNI_GetAnyMethodID<true>,
1773 _Jv_JNI_CallStaticMethod<jobject>,
1774 _Jv_JNI_CallStaticMethodV<jobject>,
1775 _Jv_JNI_CallStaticMethodA<jobject>,
1776 _Jv_JNI_CallStaticMethod<jboolean>,
1777 _Jv_JNI_CallStaticMethodV<jboolean>,
1778 _Jv_JNI_CallStaticMethodA<jboolean>,
1779 _Jv_JNI_CallStaticMethod<jbyte>,
1780 _Jv_JNI_CallStaticMethodV<jbyte>,
1781 _Jv_JNI_CallStaticMethodA<jbyte>,
1782 _Jv_JNI_CallStaticMethod<jchar>,
1783 _Jv_JNI_CallStaticMethodV<jchar>,
1784 _Jv_JNI_CallStaticMethodA<jchar>,
1785 _Jv_JNI_CallStaticMethod<jshort>,
1786 _Jv_JNI_CallStaticMethodV<jshort>,
1787 _Jv_JNI_CallStaticMethodA<jshort>,
1788 _Jv_JNI_CallStaticMethod<jint>,
1789 _Jv_JNI_CallStaticMethodV<jint>,
1790 _Jv_JNI_CallStaticMethodA<jint>,
1791 _Jv_JNI_CallStaticMethod<jlong>,
1792 _Jv_JNI_CallStaticMethodV<jlong>,
1793 _Jv_JNI_CallStaticMethodA<jlong>,
1794 _Jv_JNI_CallStaticMethod<jfloat>,
1795 _Jv_JNI_CallStaticMethodV<jfloat>,
1796 _Jv_JNI_CallStaticMethodA<jfloat>,
1797 _Jv_JNI_CallStaticMethod<jdouble>,
1798 _Jv_JNI_CallStaticMethodV<jdouble>,
1799 _Jv_JNI_CallStaticMethodA<jdouble>,
1800 _Jv_JNI_CallStaticVoidMethod,
1801 _Jv_JNI_CallStaticVoidMethodV,
1802 _Jv_JNI_CallStaticVoidMethodA,
1804 _Jv_JNI_GetAnyFieldID<true>,
1805 _Jv_JNI_GetStaticField<jobject>,
1806 _Jv_JNI_GetStaticField<jboolean>,
1807 _Jv_JNI_GetStaticField<jbyte>,
1808 _Jv_JNI_GetStaticField<jchar>,
1809 _Jv_JNI_GetStaticField<jshort>,
1810 _Jv_JNI_GetStaticField<jint>,
1811 _Jv_JNI_GetStaticField<jlong>,
1812 _Jv_JNI_GetStaticField<jfloat>,
1813 _Jv_JNI_GetStaticField<jdouble>,
1814 _Jv_JNI_SetStaticField,
1815 _Jv_JNI_SetStaticField,
1816 _Jv_JNI_SetStaticField,
1817 _Jv_JNI_SetStaticField,
1818 _Jv_JNI_SetStaticField,
1819 _Jv_JNI_SetStaticField,
1820 _Jv_JNI_SetStaticField,
1821 _Jv_JNI_SetStaticField,
1822 _Jv_JNI_SetStaticField,
1824 _Jv_JNI_GetStringLength,
1825 _Jv_JNI_GetStringChars,
1826 _Jv_JNI_ReleaseStringChars,
1827 _Jv_JNI_NewStringUTF,
1828 _Jv_JNI_GetStringUTFLength,
1829 _Jv_JNI_GetStringUTFChars,
1830 _Jv_JNI_ReleaseStringUTFChars,
1831 _Jv_JNI_GetArrayLength,
1832 _Jv_JNI_NewObjectArray,
1833 _Jv_JNI_GetObjectArrayElement,
1834 _Jv_JNI_SetObjectArrayElement,
1835 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
1836 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>,
1837 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>,
1838 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>,
1839 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>,
1840 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>,
1841 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>,
1842 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>,
1843 _Jv_JNI_GetPrimitiveArrayElements,
1844 _Jv_JNI_GetPrimitiveArrayElements,
1845 _Jv_JNI_GetPrimitiveArrayElements,
1846 _Jv_JNI_GetPrimitiveArrayElements,
1847 _Jv_JNI_GetPrimitiveArrayElements,
1848 _Jv_JNI_GetPrimitiveArrayElements,
1849 _Jv_JNI_GetPrimitiveArrayElements,
1850 _Jv_JNI_GetPrimitiveArrayElements,
1851 _Jv_JNI_ReleasePrimitiveArrayElements,
1852 _Jv_JNI_ReleasePrimitiveArrayElements,
1853 _Jv_JNI_ReleasePrimitiveArrayElements,
1854 _Jv_JNI_ReleasePrimitiveArrayElements,
1855 _Jv_JNI_ReleasePrimitiveArrayElements,
1856 _Jv_JNI_ReleasePrimitiveArrayElements,
1857 _Jv_JNI_ReleasePrimitiveArrayElements,
1858 _Jv_JNI_ReleasePrimitiveArrayElements,
1859 _Jv_JNI_GetPrimitiveArrayRegion,
1860 _Jv_JNI_GetPrimitiveArrayRegion,
1861 _Jv_JNI_GetPrimitiveArrayRegion,
1862 _Jv_JNI_GetPrimitiveArrayRegion,
1863 _Jv_JNI_GetPrimitiveArrayRegion,
1864 _Jv_JNI_GetPrimitiveArrayRegion,
1865 _Jv_JNI_GetPrimitiveArrayRegion,
1866 _Jv_JNI_GetPrimitiveArrayRegion,
1867 _Jv_JNI_SetPrimitiveArrayRegion,
1868 _Jv_JNI_SetPrimitiveArrayRegion,
1869 _Jv_JNI_SetPrimitiveArrayRegion,
1870 _Jv_JNI_SetPrimitiveArrayRegion,
1871 _Jv_JNI_SetPrimitiveArrayRegion,
1872 _Jv_JNI_SetPrimitiveArrayRegion,
1873 _Jv_JNI_SetPrimitiveArrayRegion,
1874 _Jv_JNI_SetPrimitiveArrayRegion,
1875 NOT_IMPL /* RegisterNatives */,
1876 NOT_IMPL /* UnregisterNatives */,
1877 _Jv_JNI_MonitorEnter,
1878 _Jv_JNI_MonitorExit,
1881 _Jv_JNI_GetStringRegion,
1882 _Jv_JNI_GetStringUTFRegion,
1883 _Jv_JNI_GetPrimitiveArrayCritical,
1884 _Jv_JNI_ReleasePrimitiveArrayCritical,
1885 _Jv_JNI_GetStringCritical,
1886 _Jv_JNI_ReleaseStringCritical,
1888 NOT_IMPL /* newweakglobalref */,
1889 NOT_IMPL /* deleteweakglobalref */,
1891 _Jv_JNI_ExceptionCheck
1894 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
1900 _Jv_JNI_DestroyJavaVM,
1901 _Jv_JNI_AttachCurrentThread,
1902 _Jv_JNI_DetachCurrentThread,