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 <gnu/gcj/jni/NativeThread.h>
44 #include <gcj/method.h>
45 #include <gcj/field.h>
47 #include <java-interp.h>
49 // FIXME: remove these defines.
50 #define ClassClass java::lang::Class::class$
51 #define ObjectClass java::lang::Object::class$
52 #define ThrowableClass java::lang::Throwable::class$
53 #define MethodClass java::lang::reflect::Method::class$
54 #define ThreadGroupClass java::lang::ThreadGroup::class$
55 #define NativeThreadClass gnu::gcj::jni::NativeThread::class$
57 // This enum is used to select different template instantiations in
58 // the invocation code.
67 // Forward declarations.
68 extern struct JNINativeInterface _Jv_JNIFunctions;
69 extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions;
71 // Number of slots in the default frame. The VM must allow at least
75 // Mark value indicating this is an overflow frame.
77 // Mark value indicating this is a user frame.
79 // Mark value indicating this is a system frame.
82 // This structure is used to keep track of local references.
83 struct _Jv_JNI_LocalFrame
85 // This is true if this frame object represents a pushed frame (eg
86 // from PushLocalFrame).
89 // Number of elements in frame.
92 // Next frame in chain.
93 _Jv_JNI_LocalFrame *next;
95 // The elements. These are allocated using the C "struct hack".
99 // This holds a reference count for all local and global references.
100 static java::util::Hashtable *ref_table;
103 static JavaVM *the_vm;
106 // The only JVMPI interface description.
107 static JVMPI_Interface _Jv_JVMPI_Interface;
110 jvmpiEnableEvent (jint event_type, void *)
114 case JVMPI_EVENT_OBJECT_ALLOC:
115 _Jv_JVMPI_Notify_OBJECT_ALLOC = _Jv_JVMPI_Interface.NotifyEvent;
118 case JVMPI_EVENT_THREAD_START:
119 _Jv_JVMPI_Notify_THREAD_START = _Jv_JVMPI_Interface.NotifyEvent;
122 case JVMPI_EVENT_THREAD_END:
123 _Jv_JVMPI_Notify_THREAD_END = _Jv_JVMPI_Interface.NotifyEvent;
127 return JVMPI_NOT_AVAILABLE;
130 return JVMPI_SUCCESS;
134 jvmpiDisableEvent (jint event_type, void *)
138 case JVMPI_EVENT_OBJECT_ALLOC:
139 _Jv_JVMPI_Notify_OBJECT_ALLOC = NULL;
143 return JVMPI_NOT_AVAILABLE;
146 return JVMPI_SUCCESS;
155 ref_table = new java::util::Hashtable;
158 _Jv_JVMPI_Interface.version = 1;
159 _Jv_JVMPI_Interface.EnableEvent = &jvmpiEnableEvent;
160 _Jv_JVMPI_Interface.DisableEvent = &jvmpiDisableEvent;
161 _Jv_JVMPI_Interface.EnableGC = &_Jv_EnableGC;
162 _Jv_JVMPI_Interface.DisableGC = &_Jv_DisableGC;
163 _Jv_JVMPI_Interface.RunGC = &_Jv_RunGC;
167 // Tell the GC that a certain pointer is live.
169 mark_for_gc (jobject obj)
171 JvSynchronize sync (ref_table);
173 using namespace java::lang;
174 Integer *refcount = (Integer *) ref_table->get (obj);
175 jint val = (refcount == NULL) ? 0 : refcount->intValue ();
176 // FIXME: what about out of memory error?
177 ref_table->put (obj, new Integer (val + 1));
182 unmark_for_gc (jobject obj)
184 JvSynchronize sync (ref_table);
186 using namespace java::lang;
187 Integer *refcount = (Integer *) ref_table->get (obj);
189 jint val = refcount->intValue () - 1;
191 ref_table->remove (obj);
193 // FIXME: what about out of memory error?
194 ref_table->put (obj, new Integer (val));
200 _Jv_JNI_NewGlobalRef (JNIEnv *, jobject obj)
207 _Jv_JNI_DeleteGlobalRef (JNIEnv *, jobject obj)
213 _Jv_JNI_DeleteLocalRef (JNIEnv *env, jobject obj)
215 _Jv_JNI_LocalFrame *frame;
217 for (frame = env->locals; frame != NULL; frame = frame->next)
219 for (int i = 0; i < FRAME_SIZE; ++i)
221 if (frame->vec[i] == obj)
223 frame->vec[i] = NULL;
229 // Don't go past a marked frame.
230 JvAssert (frame->marker == MARK_NONE);
237 _Jv_JNI_EnsureLocalCapacity (JNIEnv *env, jint size)
239 // It is easier to just always allocate a new frame of the requested
240 // size. This isn't the most efficient thing, but for now we don't
241 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
243 _Jv_JNI_LocalFrame *frame;
246 frame = (_Jv_JNI_LocalFrame *) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame)
247 + size * sizeof (jobject));
255 frame->marker = MARK_NONE;
257 memset (&frame->vec[0], 0, size * sizeof (jobject));
258 frame->next = env->locals;
265 _Jv_JNI_PushLocalFrame (JNIEnv *env, jint size)
267 jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
271 // The new frame is on top.
272 env->locals->marker = MARK_USER;
278 _Jv_JNI_NewLocalRef (JNIEnv *env, jobject obj)
280 // Try to find an open slot somewhere in the topmost frame.
281 _Jv_JNI_LocalFrame *frame = env->locals;
282 bool done = false, set = false;
283 while (frame != NULL && ! done)
285 for (int i = 0; i < frame->size; ++i)
286 if (frame->vec[i] == NULL)
297 // No slots, so we allocate a new frame. According to the spec
298 // we could just die here. FIXME: return value.
299 _Jv_JNI_EnsureLocalCapacity (env, 16);
300 // We know the first element of the new frame will be ok.
301 env->locals->vec[0] = obj;
309 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result, int stop)
311 _Jv_JNI_LocalFrame *rf = env->locals;
314 while (rf != NULL && ! done)
316 for (int i = 0; i < rf->size; ++i)
317 if (rf->vec[i] != NULL)
318 unmark_for_gc (rf->vec[i]);
320 // If the frame we just freed is the marker frame, we are done.
321 done = (rf->marker == stop);
323 _Jv_JNI_LocalFrame *n = rf->next;
324 // When N==NULL, we've reached the stack-allocated frame, and we
325 // must not free it. However, we must be sure to clear all its
326 // elements, since we might conceivably reuse it.
329 memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
337 return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
341 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result)
343 return _Jv_JNI_PopLocalFrame (env, result, MARK_USER);
346 // Pop a `system' frame from the stack. This is `extern "C"' as it is
347 // used by the compiler.
349 _Jv_JNI_PopSystemFrame (JNIEnv *env)
351 _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
355 jthrowable t = env->ex;
361 // This function is used from other template functions. It wraps the
362 // return value appropriately; we specialize it so that object returns
363 // are turned into local references.
366 wrap_value (JNIEnv *, T value)
373 wrap_value (JNIEnv *env, jobject value)
375 return value == NULL ? value : _Jv_JNI_NewLocalRef (env, value);
381 _Jv_JNI_GetVersion (JNIEnv *)
383 return JNI_VERSION_1_2;
387 _Jv_JNI_DefineClass (JNIEnv *env, jobject loader,
388 const jbyte *buf, jsize bufLen)
392 jbyteArray bytes = JvNewByteArray (bufLen);
394 jbyte *elts = elements (bytes);
395 memcpy (elts, buf, bufLen * sizeof (jbyte));
397 java::lang::ClassLoader *l
398 = reinterpret_cast<java::lang::ClassLoader *> (loader);
400 jclass result = l->defineClass (bytes, 0, bufLen);
401 return (jclass) wrap_value (env, result);
411 _Jv_JNI_FindClass (JNIEnv *env, const char *name)
413 // FIXME: assume that NAME isn't too long.
414 int len = strlen (name);
416 for (int i = 0; i <= len; ++i)
417 s[i] = (name[i] == '/') ? '.' : name[i];
422 // This might throw an out of memory exception.
423 jstring n = JvNewStringUTF (s);
425 java::lang::ClassLoader *loader = NULL;
426 if (env->klass != NULL)
427 loader = env->klass->getClassLoader ();
431 // FIXME: should use getBaseClassLoader, but we don't have that
433 loader = java::lang::ClassLoader::getSystemClassLoader ();
436 r = loader->loadClass (n);
443 return (jclass) wrap_value (env, r);
447 _Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
449 return (jclass) wrap_value (env, clazz->getSuperclass ());
453 _Jv_JNI_IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
455 return clazz1->isAssignableFrom (clazz2);
459 _Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
461 // We check in case the user did some funky cast.
462 JvAssert (obj != NULL && (&ThrowableClass)->isInstance (obj));
468 _Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
470 using namespace java::lang::reflect;
472 JvAssert ((&ThrowableClass)->isAssignableFrom (clazz));
477 JArray<jclass> *argtypes
478 = (JArray<jclass> *) JvNewObjectArray (1, &ClassClass, NULL);
480 jclass *elts = elements (argtypes);
481 elts[0] = &StringClass;
483 Constructor *cons = clazz->getConstructor (argtypes);
485 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
486 jobject *velts = elements (values);
487 velts[0] = JvNewStringUTF (message);
489 jobject obj = cons->newInstance (values);
491 env->ex = reinterpret_cast<jthrowable> (obj);
503 _Jv_JNI_ExceptionOccurred (JNIEnv *env)
505 return (jthrowable) wrap_value (env, env->ex);
509 _Jv_JNI_ExceptionDescribe (JNIEnv *env)
512 env->ex->printStackTrace();
516 _Jv_JNI_ExceptionClear (JNIEnv *env)
522 _Jv_JNI_ExceptionCheck (JNIEnv *env)
524 return env->ex != NULL;
528 _Jv_JNI_FatalError (JNIEnv *, const char *message)
536 _Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
542 _Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
545 using namespace java::lang::reflect;
549 JvAssert (clazz && ! clazz->isArray ());
550 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
551 env->ex = new java::lang::InstantiationException ();
554 // FIXME: will this work for String?
555 obj = JvAllocObject (clazz);
563 return wrap_value (env, obj);
567 _Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
570 return (jclass) wrap_value (env, obj->getClass());
574 _Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
576 return clazz->isInstance(obj);
582 // This section concerns method invocation.
585 template<jboolean is_static>
587 _Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
588 const char *name, const char *sig)
592 _Jv_InitClass (clazz);
594 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
595 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
597 JvAssert (! clazz->isPrimitive());
599 using namespace java::lang::reflect;
601 while (clazz != NULL)
603 jint count = JvNumMethods (clazz);
604 jmethodID meth = JvGetFirstMethod (clazz);
606 for (jint i = 0; i < count; ++i)
608 if (((is_static && Modifier::isStatic (meth->accflags))
609 || (! is_static && ! Modifier::isStatic (meth->accflags)))
610 && _Jv_equalUtf8Consts (meth->name, name_u)
611 && _Jv_equalUtf8Consts (meth->signature, sig_u))
614 meth = meth->getNextMethod();
617 clazz = clazz->getSuperclass ();
620 env->ex = new java::lang::NoSuchMethodError ();
630 // This is a helper function which turns a va_list into an array of
631 // `jvalue's. It needs signature information in order to do its work.
632 // The array of values must already be allocated.
634 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
636 jclass *arg_elts = elements (arg_types);
637 for (int i = 0; i < arg_types->length; ++i)
639 if (arg_elts[i] == JvPrimClass (byte))
640 values[i].b = va_arg (vargs, jbyte);
641 else if (arg_elts[i] == JvPrimClass (short))
642 values[i].s = va_arg (vargs, jshort);
643 else if (arg_elts[i] == JvPrimClass (int))
644 values[i].i = va_arg (vargs, jint);
645 else if (arg_elts[i] == JvPrimClass (long))
646 values[i].j = va_arg (vargs, jlong);
647 else if (arg_elts[i] == JvPrimClass (float))
648 values[i].f = va_arg (vargs, jfloat);
649 else if (arg_elts[i] == JvPrimClass (double))
650 values[i].d = va_arg (vargs, jdouble);
651 else if (arg_elts[i] == JvPrimClass (boolean))
652 values[i].z = va_arg (vargs, jboolean);
653 else if (arg_elts[i] == JvPrimClass (char))
654 values[i].c = va_arg (vargs, jchar);
658 values[i].l = va_arg (vargs, jobject);
663 // This can call any sort of method: virtual, "nonvirtual", static, or
665 template<typename T, invocation_type style>
667 _Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
668 jmethodID id, va_list vargs)
671 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
673 jclass decl_class = klass ? klass : obj->getClass ();
674 JvAssert (decl_class != NULL);
677 JArray<jclass> *arg_types;
681 _Jv_GetTypesFromSignature (id, decl_class,
682 &arg_types, &return_type);
684 jvalue args[arg_types->length];
685 array_from_valist (args, arg_types, vargs);
687 // For constructors we need to pass the Class we are instantiating.
688 if (style == constructor)
692 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
693 style == constructor,
694 arg_types, args, &result);
699 // We cheat a little here. FIXME.
700 return wrap_value (env, * (T *) &result);
707 return wrap_value (env, (T) 0);
710 template<typename T, invocation_type style>
712 _Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
713 jmethodID method, ...)
718 va_start (args, method);
719 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
725 template<typename T, invocation_type style>
727 _Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
728 jmethodID id, jvalue *args)
731 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
733 jclass decl_class = klass ? klass : obj->getClass ();
734 JvAssert (decl_class != NULL);
737 JArray<jclass> *arg_types;
740 _Jv_GetTypesFromSignature (id, decl_class,
741 &arg_types, &return_type);
743 // For constructors we need to pass the Class we are instantiating.
744 if (style == constructor)
748 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
749 style == constructor,
750 arg_types, args, &result);
755 // We cheat a little here. FIXME.
756 return wrap_value (env, * (T *) &result);
763 return wrap_value (env, (T) 0);
766 template<invocation_type style>
768 _Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
769 jmethodID id, va_list vargs)
772 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
774 jclass decl_class = klass ? klass : obj->getClass ();
775 JvAssert (decl_class != NULL);
778 JArray<jclass> *arg_types;
781 _Jv_GetTypesFromSignature (id, decl_class,
782 &arg_types, &return_type);
784 jvalue args[arg_types->length];
785 array_from_valist (args, arg_types, vargs);
787 // For constructors we need to pass the Class we are instantiating.
788 if (style == constructor)
791 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
792 style == constructor,
793 arg_types, args, NULL);
804 template<invocation_type style>
806 _Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
807 jmethodID method, ...)
811 va_start (args, method);
812 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
816 template<invocation_type style>
818 _Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
819 jmethodID id, jvalue *args)
822 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
824 jclass decl_class = klass ? klass : obj->getClass ();
825 JvAssert (decl_class != NULL);
828 JArray<jclass> *arg_types;
831 _Jv_GetTypesFromSignature (id, decl_class,
832 &arg_types, &return_type);
834 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
835 style == constructor,
836 arg_types, args, NULL);
847 // Functions with this signature are used to implement functions in
848 // the CallMethod family.
851 _Jv_JNI_CallMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
853 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
856 // Functions with this signature are used to implement functions in
857 // the CallMethod family.
860 _Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
866 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
872 // Functions with this signature are used to implement functions in
873 // the CallMethod family.
876 _Jv_JNI_CallMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
878 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
882 _Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
884 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
888 _Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
893 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
898 _Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
900 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
903 // Functions with this signature are used to implement functions in
904 // the CallStaticMethod family.
907 _Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
908 jmethodID id, va_list args)
910 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
911 JvAssert ((&ClassClass)->isInstance (klass));
913 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
916 // Functions with this signature are used to implement functions in
917 // the CallStaticMethod family.
920 _Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
925 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
926 JvAssert ((&ClassClass)->isInstance (klass));
929 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
936 // Functions with this signature are used to implement functions in
937 // the CallStaticMethod family.
940 _Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
943 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
944 JvAssert ((&ClassClass)->isInstance (klass));
946 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
950 _Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass, jmethodID id,
953 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
957 _Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
962 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
967 _Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass, jmethodID id,
970 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
974 _Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
975 jmethodID id, va_list args)
977 JvAssert (klass && ! klass->isArray ());
978 JvAssert (! strcmp (id->name->data, "<init>")
979 && id->signature->length > 2
980 && id->signature->data[0] == '('
981 && ! strcmp (&id->signature->data[id->signature->length - 2],
984 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
989 _Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
991 JvAssert (klass && ! klass->isArray ());
992 JvAssert (! strcmp (id->name->data, "<init>")
993 && id->signature->length > 2
994 && id->signature->data[0] == '('
995 && ! strcmp (&id->signature->data[id->signature->length - 2],
1001 va_start (args, id);
1002 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1010 _Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
1013 JvAssert (klass && ! klass->isArray ());
1014 JvAssert (! strcmp (id->name->data, "<init>")
1015 && id->signature->length > 2
1016 && id->signature->data[0] == '('
1017 && ! strcmp (&id->signature->data[id->signature->length - 2],
1020 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
1026 template<typename T>
1028 _Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
1031 T *ptr = (T *) ((char *) obj + field->getOffset ());
1032 return wrap_value (env, *ptr);
1035 template<typename T>
1037 _Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
1040 T *ptr = (T *) ((char *) obj + field->getOffset ());
1044 template<jboolean is_static>
1046 _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
1047 const char *name, const char *sig)
1051 _Jv_InitClass (clazz);
1053 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
1055 jclass field_class = NULL;
1057 field_class = _Jv_FindClassFromSignature ((char *) sig, NULL);
1060 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) sig, -1);
1061 field_class = _Jv_FindClass (sig_u, NULL);
1064 // FIXME: what if field_class == NULL?
1066 while (clazz != NULL)
1068 jint count = (is_static
1069 ? JvNumStaticFields (clazz)
1070 : JvNumInstanceFields (clazz));
1071 jfieldID field = (is_static
1072 ? JvGetFirstStaticField (clazz)
1073 : JvGetFirstInstanceField (clazz));
1074 for (jint i = 0; i < count; ++i)
1076 // The field is resolved as a side effect of class
1078 JvAssert (field->isResolved ());
1080 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
1082 if (_Jv_equalUtf8Consts (f_name, a_name)
1083 && field->getClass() == field_class)
1086 field = field->getNextField ();
1089 clazz = clazz->getSuperclass ();
1092 env->ex = new java::lang::NoSuchFieldError ();
1094 catch (jthrowable t)
1101 template<typename T>
1103 _Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
1105 T *ptr = (T *) field->u.addr;
1106 return wrap_value (env, *ptr);
1109 template<typename T>
1111 _Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
1113 T *ptr = (T *) field->u.addr;
1118 _Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
1122 jstring r = _Jv_NewString (unichars, len);
1123 return (jstring) wrap_value (env, r);
1125 catch (jthrowable t)
1133 _Jv_JNI_GetStringLength (JNIEnv *, jstring string)
1135 return string->length();
1138 static const jchar *
1139 _Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
1141 jchar *result = _Jv_GetStringChars (string);
1142 mark_for_gc (string);
1145 return (const jchar *) result;
1149 _Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
1151 unmark_for_gc (string);
1155 _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
1159 jstring result = JvNewStringUTF (bytes);
1160 return (jstring) wrap_value (env, result);
1162 catch (jthrowable t)
1170 _Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
1172 return JvGetStringUTFLength (string);
1176 _Jv_JNI_GetStringUTFChars (JNIEnv *env, jstring string, jboolean *isCopy)
1178 jsize len = JvGetStringUTFLength (string);
1181 char *r = (char *) _Jv_Malloc (len + 1);
1182 JvGetStringUTFRegion (string, 0, len, r);
1188 return (const char *) r;
1190 catch (jthrowable t)
1198 _Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
1200 _Jv_Free ((void *) utf);
1204 _Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start, jsize len,
1207 jchar *result = _Jv_GetStringChars (string);
1208 if (start < 0 || start > string->length ()
1209 || len < 0 || start + len > string->length ())
1213 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1215 catch (jthrowable t)
1221 memcpy (buf, &result[start], len * sizeof (jchar));
1225 _Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
1226 jsize len, char *buf)
1228 if (start < 0 || start > str->length ()
1229 || len < 0 || start + len > str->length ())
1233 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1235 catch (jthrowable t)
1241 _Jv_GetStringUTFRegion (str, start, len, buf);
1244 static const jchar *
1245 _Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
1247 jchar *result = _Jv_GetStringChars (str);
1254 _Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
1260 _Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
1262 return array->length;
1266 _Jv_JNI_NewObjectArray (JNIEnv *env, jsize length, jclass elementClass,
1271 jarray result = JvNewObjectArray (length, elementClass, init);
1272 return (jarray) wrap_value (env, result);
1274 catch (jthrowable t)
1282 _Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index)
1284 jobject *elts = elements (array);
1285 return wrap_value (env, elts[index]);
1289 _Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index,
1294 _Jv_CheckArrayStore (array, value);
1295 jobject *elts = elements (array);
1296 elts[index] = value;
1298 catch (jthrowable t)
1304 template<typename T, jclass K>
1306 _Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
1310 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1312 catch (jthrowable t)
1319 template<typename T>
1321 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1324 T *elts = elements (array);
1327 // We elect never to copy.
1330 mark_for_gc (array);
1334 template<typename T>
1336 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1337 T *, jint /* mode */)
1339 // Note that we ignore MODE. We can do this because we never copy
1340 // the array elements. My reading of the JNI documentation is that
1341 // this is an option for the implementor.
1342 unmark_for_gc (array);
1345 template<typename T>
1347 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1348 jsize start, jsize len,
1351 if (start < 0 || len >= array->length || start + len >= array->length)
1356 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1358 catch (jthrowable t)
1360 // Could have thown out of memory error.
1366 T *elts = elements (array) + start;
1367 memcpy (buf, elts, len * sizeof (T));
1371 template<typename T>
1373 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1374 jsize start, jsize len, T *buf)
1376 if (start < 0 || len >= array->length || start + len >= array->length)
1381 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1383 catch (jthrowable t)
1390 T *elts = elements (array) + start;
1391 memcpy (elts, buf, len * sizeof (T));
1396 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
1399 // FIXME: does this work?
1400 jclass klass = array->getClass()->getComponentType();
1401 JvAssert (klass->isPrimitive ());
1402 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1409 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
1415 _Jv_JNI_MonitorEnter (JNIEnv *env, jobject obj)
1419 return _Jv_MonitorEnter (obj);
1421 catch (jthrowable t)
1429 _Jv_JNI_MonitorExit (JNIEnv *env, jobject obj)
1433 return _Jv_MonitorExit (obj);
1435 catch (jthrowable t)
1444 _Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
1449 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1450 field->declaringClass = cls;
1451 field->offset = (char*) fieldID - (char *) cls->fields;
1452 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1453 return wrap_value (env, field);
1455 catch (jthrowable t)
1464 _Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
1466 using namespace java::lang::reflect;
1468 Field *field = reinterpret_cast<Field *> (f);
1469 return _Jv_FromReflectedField (field);
1473 _Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
1476 using namespace java::lang::reflect;
1479 static _Jv_Utf8Const *init_name = _Jv_makeUtf8Const ("<init>", 6);
1481 jobject result = NULL;
1485 if (_Jv_equalUtf8Consts (id->name, init_name))
1488 Constructor *cons = new Constructor ();
1489 cons->offset = (char *) id - (char *) &klass->methods;
1490 cons->declaringClass = klass;
1495 Method *meth = new Method ();
1496 meth->offset = (char *) id - (char *) &klass->methods;
1497 meth->declaringClass = klass;
1501 catch (jthrowable t)
1506 return wrap_value (env, result);
1510 _Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
1512 using namespace java::lang::reflect;
1513 if ((&MethodClass)->isInstance (method))
1514 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1516 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1520 _Jv_JNI_RegisterNatives (JNIEnv *env, jclass k,
1521 const JNINativeMethod *methods,
1525 // For now, this only matters for interpreted methods. FIXME.
1526 if (! _Jv_IsInterpretedClass (k))
1528 // FIXME: throw exception.
1531 _Jv_InterpClass *klass = reinterpret_cast<_Jv_InterpClass *> (k);
1533 // Look at each descriptor given us, and find the corresponding
1534 // method in the class.
1535 for (int j = 0; j < nMethods; ++j)
1539 _Jv_MethodBase **imeths = _Jv_GetFirstMethod (klass);
1540 for (int i = 0; i < JvNumMethods (klass); ++i)
1542 _Jv_MethodBase *meth = imeths[i];
1543 _Jv_Method *self = meth->get_method ();
1545 if (! strcmp (self->name->data, methods[j].name)
1546 && ! strcmp (self->signature->data, methods[j].signature))
1548 if (! (self->accflags
1549 & java::lang::reflect::Modifier::NATIVE))
1552 // Found a match that is native.
1553 _Jv_JNIMethod *jmeth = reinterpret_cast<_Jv_JNIMethod *> (meth);
1554 jmeth->set_function (methods[i].fnPtr);
1562 jstring m = JvNewStringUTF (methods[j].name);
1565 env->ex =new java::lang::NoSuchMethodError (m);
1567 catch (jthrowable t)
1576 #else /* INTERPRETER */
1578 #endif /* INTERPRETER */
1582 _Jv_JNI_UnregisterNatives (JNIEnv *, jclass)
1591 // Add a character to the buffer, encoding properly.
1593 add_char (char *buf, jchar c, int *here)
1597 buf[(*here)++] = '_';
1598 buf[(*here)++] = '1';
1602 buf[(*here)++] = '_';
1603 buf[(*here)++] = '2';
1607 buf[(*here)++] = '_';
1608 buf[(*here)++] = '3';
1611 buf[(*here)++] = '_';
1612 else if ((c >= '0' && c <= '9')
1613 || (c >= 'a' && c <= 'z')
1614 || (c >= 'A' && c <= 'Z'))
1615 buf[(*here)++] = (char) c;
1618 // "Unicode" character.
1619 buf[(*here)++] = '_';
1620 buf[(*here)++] = '0';
1621 for (int i = 0; i < 4; ++i)
1624 buf[(*here) + 4 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1631 // Compute a mangled name for a native function. This computes the
1632 // long name, and also returns an index which indicates where a NUL
1633 // can be placed to create the short name. This function assumes that
1634 // the buffer is large enough for its results.
1636 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1637 _Jv_Utf8Const *signature, char *buf, int *long_start)
1639 strcpy (buf, "Java_");
1642 // Add fully qualified class name.
1643 jchar *chars = _Jv_GetStringChars (klass->getName ());
1644 jint len = klass->getName ()->length ();
1645 for (int i = 0; i < len; ++i)
1646 add_char (buf, chars[i], &here);
1648 // Don't use add_char because we need a literal `_'.
1651 const unsigned char *fn = (const unsigned char *) func_name->data;
1652 const unsigned char *limit = fn + func_name->length;
1653 for (int i = 0; ; ++i)
1655 int ch = UTF8_GET (fn, limit);
1658 add_char (buf, ch, &here);
1661 // This is where the long signature begins.
1666 const unsigned char *sig = (const unsigned char *) signature->data;
1667 limit = sig + signature->length;
1668 JvAssert (sig[0] == '(');
1672 int ch = UTF8_GET (sig, limit);
1673 if (ch == ')' || ch < 0)
1675 add_char (buf, ch, &here);
1681 // Return the current thread's JNIEnv; if one does not exist, create
1682 // it. Also create a new system frame for use. This is `extern "C"'
1683 // because the compiler calls it.
1685 _Jv_GetJNIEnvNewFrame (jclass klass)
1687 JNIEnv *env = _Jv_GetCurrentJNIEnv ();
1690 env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1691 env->p = &_Jv_JNIFunctions;
1696 _Jv_SetCurrentJNIEnv (env);
1699 _Jv_JNI_LocalFrame *frame
1700 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1702 * sizeof (jobject)));
1704 frame->marker = MARK_SYSTEM;
1705 frame->size = FRAME_SIZE;
1706 frame->next = env->locals;
1707 env->locals = frame;
1709 for (int i = 0; i < frame->size; ++i)
1710 frame->vec[i] = NULL;
1715 // Return the function which implements a particular JNI method. If
1716 // we can't find the function, we throw the appropriate exception.
1717 // This is `extern "C"' because the compiler uses it.
1719 _Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
1720 _Jv_Utf8Const *signature)
1722 char buf[10 + 6 * (name->length + signature->length)];
1726 mangled_name (klass, name, signature, buf, &long_start);
1727 char c = buf[long_start];
1728 buf[long_start] = '\0';
1729 function = _Jv_FindSymbolInExecutable (buf);
1730 if (function == NULL)
1732 buf[long_start] = c;
1733 function = _Jv_FindSymbolInExecutable (buf);
1734 if (function == NULL)
1736 jstring str = JvNewStringUTF (name->data);
1737 JvThrow (new java::lang::AbstractMethodError (str));
1744 // This function is the stub which is used to turn an ordinary (CNI)
1745 // method call into a JNI call.
1747 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
1749 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
1751 JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
1753 // FIXME: we should mark every reference parameter as a local. For
1754 // now we assume a conservative GC, and we assume that the
1755 // references are on the stack somewhere.
1757 // We cache the value that we find, of course, but if we don't find
1758 // a value we don't cache that fact -- we might subsequently load a
1759 // library which finds the function in question.
1760 if (_this->function == NULL)
1761 _this->function = _Jv_LookupJNIMethod (_this->defining_class,
1763 _this->self->signature);
1765 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
1766 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
1769 // First argument is always the environment pointer.
1770 real_args[offset++].ptr = env;
1772 // For a static method, we pass in the Class. For non-static
1773 // methods, the `this' argument is already handled.
1774 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
1775 real_args[offset++].ptr = _this->defining_class;
1777 // Copy over passed-in arguments.
1778 memcpy (&real_args[offset], args, _this->args_raw_size);
1780 // The actual call to the JNI function.
1781 ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
1784 _Jv_JNI_PopSystemFrame (env);
1787 #endif /* INTERPRETER */
1795 // An internal helper function.
1797 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv, void *args)
1799 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
1800 java::lang::ThreadGroup *group = NULL;
1804 // FIXME: do we really want to support 1.1?
1805 if (attach->version != JNI_VERSION_1_2
1806 && attach->version != JNI_VERSION_1_1)
1807 return JNI_EVERSION;
1809 JvAssert ((&ThreadGroupClass)->isInstance (attach->group));
1810 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
1813 // Attaching an already-attached thread is a no-op.
1814 if (_Jv_GetCurrentJNIEnv () != NULL)
1817 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1820 env->p = &_Jv_JNIFunctions;
1824 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1826 * sizeof (jobject)));
1827 if (env->locals == NULL)
1832 *penv = reinterpret_cast<void *> (env);
1834 // This thread might already be a Java thread -- this function might
1835 // have been called simply to set the new JNIEnv.
1836 if (_Jv_ThreadCurrent () == NULL)
1840 (void) new gnu::gcj::jni::NativeThread (group, name);
1842 catch (jthrowable t)
1847 _Jv_SetCurrentJNIEnv (env);
1852 // This is the one actually used by JNI.
1854 _Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
1856 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args);
1860 _Jv_JNI_DestroyJavaVM (JavaVM *vm)
1862 JvAssert (the_vm && vm == the_vm);
1865 if (_Jv_ThreadCurrent () != NULL)
1871 main_name = JvNewStringLatin1 ("main");
1873 catch (jthrowable t)
1878 jint r = _Jv_JNI_AttachCurrentThread (vm,
1880 reinterpret_cast<void **> (&env),
1886 env = _Jv_GetCurrentJNIEnv ();
1890 // Docs say that this always returns an error code.
1895 _Jv_JNI_DetachCurrentThread (JavaVM *)
1897 java::lang::Thread *t = _Jv_ThreadCurrent ();
1899 return JNI_EDETACHED;
1901 // FIXME: we only allow threads attached via AttachCurrentThread to
1902 // be detached. I have no idea how we could implement detaching
1903 // other threads, given the requirement that we must release all the
1904 // monitors. That just seems evil.
1905 JvAssert ((&NativeThreadClass)->isInstance (t));
1907 // FIXME: release the monitors. We'll take this to mean all
1908 // monitors acquired via the JNI interface. This means we have to
1909 // keep track of them.
1911 gnu::gcj::jni::NativeThread *nt
1912 = reinterpret_cast<gnu::gcj::jni::NativeThread *> (t);
1919 _Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
1921 if (_Jv_ThreadCurrent () == NULL)
1924 return JNI_EDETACHED;
1928 // Handle JVMPI requests.
1929 if (version == JVMPI_VERSION_1)
1931 *penv = (void *) &_Jv_JVMPI_Interface;
1936 // FIXME: do we really want to support 1.1?
1937 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_1)
1940 return JNI_EVERSION;
1943 *penv = (void *) _Jv_GetCurrentJNIEnv ();
1948 JNI_GetDefaultJavaVMInitArgs (void *args)
1950 jint version = * (jint *) args;
1951 // Here we only support 1.2.
1952 if (version != JNI_VERSION_1_2)
1953 return JNI_EVERSION;
1955 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1956 ia->version = JNI_VERSION_1_2;
1959 ia->ignoreUnrecognized = true;
1965 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
1967 JvAssert (! the_vm);
1968 // FIXME: synchronize
1969 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1972 nvm->functions = &_Jv_JNI_InvokeFunctions;
1974 // Parse the arguments.
1977 jint version = * (jint *) args;
1978 // We only support 1.2.
1979 if (version != JNI_VERSION_1_2)
1980 return JNI_EVERSION;
1981 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1982 for (int i = 0; i < ia->nOptions; ++i)
1984 if (! strcmp (ia->options[i].optionString, "vfprintf")
1985 || ! strcmp (ia->options[i].optionString, "exit")
1986 || ! strcmp (ia->options[i].optionString, "abort"))
1988 // We are required to recognize these, but for now we
1989 // don't handle them in any way. FIXME.
1992 else if (! strncmp (ia->options[i].optionString,
1993 "-verbose", sizeof ("-verbose") - 1))
1995 // We don't do anything with this option either. We
1996 // might want to make sure the argument is valid, but we
1997 // don't really care all that much for now.
2000 else if (! strncmp (ia->options[i].optionString, "-D", 2))
2005 else if (ia->ignoreUnrecognized)
2007 if (ia->options[i].optionString[0] == '_'
2008 || ! strncmp (ia->options[i].optionString, "-X", 2))
2016 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
2026 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
2031 // We only support a single VM.
2034 vm_buffer[0] = the_vm;
2045 // FIXME: synchronize
2048 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2050 nvm->functions = &_Jv_JNI_InvokeFunctions;
2054 // If this is a Java thread, we want to make sure it has an
2055 // associated JNIEnv.
2056 if (_Jv_ThreadCurrent () != NULL)
2059 _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
2066 _Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
2068 *vm = _Jv_GetJavaVM ();
2069 return *vm == NULL ? JNI_ERR : JNI_OK;
2074 #define NOT_IMPL NULL
2075 #define RESERVED NULL
2077 struct JNINativeInterface _Jv_JNIFunctions =
2084 _Jv_JNI_DefineClass,
2086 _Jv_JNI_FromReflectedMethod,
2087 _Jv_JNI_FromReflectedField,
2088 _Jv_JNI_ToReflectedMethod,
2089 _Jv_JNI_GetSuperclass,
2090 _Jv_JNI_IsAssignableFrom,
2091 _Jv_JNI_ToReflectedField,
2094 _Jv_JNI_ExceptionOccurred,
2095 _Jv_JNI_ExceptionDescribe,
2096 _Jv_JNI_ExceptionClear,
2099 _Jv_JNI_PushLocalFrame,
2100 _Jv_JNI_PopLocalFrame,
2101 _Jv_JNI_NewGlobalRef,
2102 _Jv_JNI_DeleteGlobalRef,
2103 _Jv_JNI_DeleteLocalRef,
2105 _Jv_JNI_IsSameObject,
2107 _Jv_JNI_NewLocalRef,
2108 _Jv_JNI_EnsureLocalCapacity,
2110 _Jv_JNI_AllocObject,
2114 _Jv_JNI_GetObjectClass,
2115 _Jv_JNI_IsInstanceOf,
2116 _Jv_JNI_GetAnyMethodID<false>,
2118 _Jv_JNI_CallMethod<jobject>,
2119 _Jv_JNI_CallMethodV<jobject>,
2120 _Jv_JNI_CallMethodA<jobject>,
2121 _Jv_JNI_CallMethod<jboolean>,
2122 _Jv_JNI_CallMethodV<jboolean>,
2123 _Jv_JNI_CallMethodA<jboolean>,
2124 _Jv_JNI_CallMethod<jbyte>,
2125 _Jv_JNI_CallMethodV<jbyte>,
2126 _Jv_JNI_CallMethodA<jbyte>,
2127 _Jv_JNI_CallMethod<jchar>,
2128 _Jv_JNI_CallMethodV<jchar>,
2129 _Jv_JNI_CallMethodA<jchar>,
2130 _Jv_JNI_CallMethod<jshort>,
2131 _Jv_JNI_CallMethodV<jshort>,
2132 _Jv_JNI_CallMethodA<jshort>,
2133 _Jv_JNI_CallMethod<jint>,
2134 _Jv_JNI_CallMethodV<jint>,
2135 _Jv_JNI_CallMethodA<jint>,
2136 _Jv_JNI_CallMethod<jlong>,
2137 _Jv_JNI_CallMethodV<jlong>,
2138 _Jv_JNI_CallMethodA<jlong>,
2139 _Jv_JNI_CallMethod<jfloat>,
2140 _Jv_JNI_CallMethodV<jfloat>,
2141 _Jv_JNI_CallMethodA<jfloat>,
2142 _Jv_JNI_CallMethod<jdouble>,
2143 _Jv_JNI_CallMethodV<jdouble>,
2144 _Jv_JNI_CallMethodA<jdouble>,
2145 _Jv_JNI_CallVoidMethod,
2146 _Jv_JNI_CallVoidMethodV,
2147 _Jv_JNI_CallVoidMethodA,
2149 // Nonvirtual method invocation functions follow.
2150 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>,
2151 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>,
2152 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>,
2153 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>,
2154 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>,
2155 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>,
2156 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>,
2157 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>,
2158 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>,
2159 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>,
2160 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>,
2161 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>,
2162 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>,
2163 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>,
2164 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>,
2165 _Jv_JNI_CallAnyMethod<jint, nonvirtual>,
2166 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>,
2167 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>,
2168 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>,
2169 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>,
2170 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>,
2171 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>,
2172 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>,
2173 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>,
2174 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>,
2175 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>,
2176 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>,
2177 _Jv_JNI_CallAnyVoidMethod<nonvirtual>,
2178 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>,
2179 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>,
2181 _Jv_JNI_GetAnyFieldID<false>,
2182 _Jv_JNI_GetField<jobject>,
2183 _Jv_JNI_GetField<jboolean>,
2184 _Jv_JNI_GetField<jbyte>,
2185 _Jv_JNI_GetField<jchar>,
2186 _Jv_JNI_GetField<jshort>,
2187 _Jv_JNI_GetField<jint>,
2188 _Jv_JNI_GetField<jlong>,
2189 _Jv_JNI_GetField<jfloat>,
2190 _Jv_JNI_GetField<jdouble>,
2200 _Jv_JNI_GetAnyMethodID<true>,
2202 _Jv_JNI_CallStaticMethod<jobject>,
2203 _Jv_JNI_CallStaticMethodV<jobject>,
2204 _Jv_JNI_CallStaticMethodA<jobject>,
2205 _Jv_JNI_CallStaticMethod<jboolean>,
2206 _Jv_JNI_CallStaticMethodV<jboolean>,
2207 _Jv_JNI_CallStaticMethodA<jboolean>,
2208 _Jv_JNI_CallStaticMethod<jbyte>,
2209 _Jv_JNI_CallStaticMethodV<jbyte>,
2210 _Jv_JNI_CallStaticMethodA<jbyte>,
2211 _Jv_JNI_CallStaticMethod<jchar>,
2212 _Jv_JNI_CallStaticMethodV<jchar>,
2213 _Jv_JNI_CallStaticMethodA<jchar>,
2214 _Jv_JNI_CallStaticMethod<jshort>,
2215 _Jv_JNI_CallStaticMethodV<jshort>,
2216 _Jv_JNI_CallStaticMethodA<jshort>,
2217 _Jv_JNI_CallStaticMethod<jint>,
2218 _Jv_JNI_CallStaticMethodV<jint>,
2219 _Jv_JNI_CallStaticMethodA<jint>,
2220 _Jv_JNI_CallStaticMethod<jlong>,
2221 _Jv_JNI_CallStaticMethodV<jlong>,
2222 _Jv_JNI_CallStaticMethodA<jlong>,
2223 _Jv_JNI_CallStaticMethod<jfloat>,
2224 _Jv_JNI_CallStaticMethodV<jfloat>,
2225 _Jv_JNI_CallStaticMethodA<jfloat>,
2226 _Jv_JNI_CallStaticMethod<jdouble>,
2227 _Jv_JNI_CallStaticMethodV<jdouble>,
2228 _Jv_JNI_CallStaticMethodA<jdouble>,
2229 _Jv_JNI_CallStaticVoidMethod,
2230 _Jv_JNI_CallStaticVoidMethodV,
2231 _Jv_JNI_CallStaticVoidMethodA,
2233 _Jv_JNI_GetAnyFieldID<true>,
2234 _Jv_JNI_GetStaticField<jobject>,
2235 _Jv_JNI_GetStaticField<jboolean>,
2236 _Jv_JNI_GetStaticField<jbyte>,
2237 _Jv_JNI_GetStaticField<jchar>,
2238 _Jv_JNI_GetStaticField<jshort>,
2239 _Jv_JNI_GetStaticField<jint>,
2240 _Jv_JNI_GetStaticField<jlong>,
2241 _Jv_JNI_GetStaticField<jfloat>,
2242 _Jv_JNI_GetStaticField<jdouble>,
2243 _Jv_JNI_SetStaticField,
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,
2253 _Jv_JNI_GetStringLength,
2254 _Jv_JNI_GetStringChars,
2255 _Jv_JNI_ReleaseStringChars,
2256 _Jv_JNI_NewStringUTF,
2257 _Jv_JNI_GetStringUTFLength,
2258 _Jv_JNI_GetStringUTFChars,
2259 _Jv_JNI_ReleaseStringUTFChars,
2260 _Jv_JNI_GetArrayLength,
2261 _Jv_JNI_NewObjectArray,
2262 _Jv_JNI_GetObjectArrayElement,
2263 _Jv_JNI_SetObjectArrayElement,
2264 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
2265 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>,
2266 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>,
2267 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>,
2268 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>,
2269 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>,
2270 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>,
2271 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>,
2272 _Jv_JNI_GetPrimitiveArrayElements,
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_ReleasePrimitiveArrayElements,
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_GetPrimitiveArrayRegion,
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_SetPrimitiveArrayRegion,
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_RegisterNatives,
2305 _Jv_JNI_UnregisterNatives,
2306 _Jv_JNI_MonitorEnter,
2307 _Jv_JNI_MonitorExit,
2310 _Jv_JNI_GetStringRegion,
2311 _Jv_JNI_GetStringUTFRegion,
2312 _Jv_JNI_GetPrimitiveArrayCritical,
2313 _Jv_JNI_ReleasePrimitiveArrayCritical,
2314 _Jv_JNI_GetStringCritical,
2315 _Jv_JNI_ReleaseStringCritical,
2317 NOT_IMPL /* newweakglobalref */,
2318 NOT_IMPL /* deleteweakglobalref */,
2320 _Jv_JNI_ExceptionCheck
2323 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
2329 _Jv_JNI_DestroyJavaVM,
2330 _Jv_JNI_AttachCurrentThread,
2331 _Jv_JNI_DetachCurrentThread,