1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation
5 This file is part of libgcj.
7 This software is copyrighted work licensed under the terms of the
8 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
16 // Define this before including jni.h.
17 #define __GCJ_JNI_IMPL__
21 #include <java-assert.h>
27 #include <java/lang/Class.h>
28 #include <java/lang/ClassLoader.h>
29 #include <java/lang/Throwable.h>
30 #include <java/lang/ArrayIndexOutOfBoundsException.h>
31 #include <java/lang/StringIndexOutOfBoundsException.h>
32 #include <java/lang/AbstractMethodError.h>
33 #include <java/lang/InstantiationException.h>
34 #include <java/lang/NoSuchFieldError.h>
35 #include <java/lang/NoSuchMethodError.h>
36 #include <java/lang/reflect/Constructor.h>
37 #include <java/lang/reflect/Method.h>
38 #include <java/lang/reflect/Modifier.h>
39 #include <java/lang/OutOfMemoryError.h>
40 #include <java/util/IdentityHashMap.h>
41 #include <java/lang/Integer.h>
42 #include <java/lang/ThreadGroup.h>
43 #include <java/lang/Thread.h>
45 #include <gcj/method.h>
46 #include <gcj/field.h>
48 #include <java-interp.h>
49 #include <java-threads.h>
51 // This enum is used to select different template instantiations in
52 // the invocation code.
61 // Forward declarations.
62 extern struct JNINativeInterface _Jv_JNIFunctions;
63 extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions;
65 // Number of slots in the default frame. The VM must allow at least
69 // Mark value indicating this is an overflow frame.
71 // Mark value indicating this is a user frame.
73 // Mark value indicating this is a system frame.
76 // This structure is used to keep track of local references.
77 struct _Jv_JNI_LocalFrame
79 // This is true if this frame object represents a pushed frame (eg
80 // from PushLocalFrame).
83 // Number of elements in frame.
86 // Next frame in chain.
87 _Jv_JNI_LocalFrame *next;
89 // The elements. These are allocated using the C "struct hack".
93 // This holds a reference count for all local references.
94 static java::util::IdentityHashMap *local_ref_table;
95 // This holds a reference count for all global references.
96 static java::util::IdentityHashMap *global_ref_table;
99 static JavaVM *the_vm;
102 // The only JVMPI interface description.
103 static JVMPI_Interface _Jv_JVMPI_Interface;
106 jvmpiEnableEvent (jint event_type, void *)
110 case JVMPI_EVENT_OBJECT_ALLOC:
111 _Jv_JVMPI_Notify_OBJECT_ALLOC = _Jv_JVMPI_Interface.NotifyEvent;
114 case JVMPI_EVENT_THREAD_START:
115 _Jv_JVMPI_Notify_THREAD_START = _Jv_JVMPI_Interface.NotifyEvent;
118 case JVMPI_EVENT_THREAD_END:
119 _Jv_JVMPI_Notify_THREAD_END = _Jv_JVMPI_Interface.NotifyEvent;
123 return JVMPI_NOT_AVAILABLE;
126 return JVMPI_SUCCESS;
130 jvmpiDisableEvent (jint event_type, void *)
134 case JVMPI_EVENT_OBJECT_ALLOC:
135 _Jv_JVMPI_Notify_OBJECT_ALLOC = NULL;
139 return JVMPI_NOT_AVAILABLE;
142 return JVMPI_SUCCESS;
151 local_ref_table = new java::util::IdentityHashMap;
152 global_ref_table = new java::util::IdentityHashMap;
155 _Jv_JVMPI_Interface.version = 1;
156 _Jv_JVMPI_Interface.EnableEvent = &jvmpiEnableEvent;
157 _Jv_JVMPI_Interface.DisableEvent = &jvmpiDisableEvent;
158 _Jv_JVMPI_Interface.EnableGC = &_Jv_EnableGC;
159 _Jv_JVMPI_Interface.DisableGC = &_Jv_DisableGC;
160 _Jv_JVMPI_Interface.RunGC = &_Jv_RunGC;
164 // Tell the GC that a certain pointer is live.
166 mark_for_gc (jobject obj, java::util::IdentityHashMap *ref_table)
168 JvSynchronize sync (ref_table);
170 using namespace java::lang;
171 Integer *refcount = (Integer *) ref_table->get (obj);
172 jint val = (refcount == NULL) ? 0 : refcount->intValue ();
173 // FIXME: what about out of memory error?
174 ref_table->put (obj, new Integer (val + 1));
179 unmark_for_gc (jobject obj, java::util::IdentityHashMap *ref_table)
181 JvSynchronize sync (ref_table);
183 using namespace java::lang;
184 Integer *refcount = (Integer *) ref_table->get (obj);
186 jint val = refcount->intValue () - 1;
189 ref_table->remove (obj);
191 // FIXME: what about out of memory error?
192 ref_table->put (obj, new Integer (val));
198 _Jv_JNI_NewGlobalRef (JNIEnv *, jobject obj)
200 mark_for_gc (obj, global_ref_table);
205 _Jv_JNI_DeleteGlobalRef (JNIEnv *, jobject obj)
207 unmark_for_gc (obj, global_ref_table);
211 _Jv_JNI_DeleteLocalRef (JNIEnv *env, jobject obj)
213 _Jv_JNI_LocalFrame *frame;
215 for (frame = env->locals; frame != NULL; frame = frame->next)
217 for (int i = 0; i < FRAME_SIZE; ++i)
219 if (frame->vec[i] == obj)
221 frame->vec[i] = NULL;
222 unmark_for_gc (obj, local_ref_table);
227 // Don't go past a marked frame.
228 JvAssert (frame->marker == MARK_NONE);
235 _Jv_JNI_EnsureLocalCapacity (JNIEnv *env, jint size)
237 // It is easier to just always allocate a new frame of the requested
238 // size. This isn't the most efficient thing, but for now we don't
239 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
241 _Jv_JNI_LocalFrame *frame;
244 frame = (_Jv_JNI_LocalFrame *) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame)
245 + size * sizeof (jobject));
253 frame->marker = MARK_NONE;
255 memset (&frame->vec[0], 0, size * sizeof (jobject));
256 frame->next = env->locals;
263 _Jv_JNI_PushLocalFrame (JNIEnv *env, jint size)
265 jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
269 // The new frame is on top.
270 env->locals->marker = MARK_USER;
276 _Jv_JNI_NewLocalRef (JNIEnv *env, jobject obj)
278 // Try to find an open slot somewhere in the topmost frame.
279 _Jv_JNI_LocalFrame *frame = env->locals;
280 bool done = false, set = false;
281 for (; frame != NULL && ! done; frame = frame->next)
283 for (int i = 0; i < frame->size; ++i)
285 if (frame->vec[i] == NULL)
294 // If we found a slot, or if the frame we just searched is the
295 // mark frame, then we are done.
296 if (done || frame->marker != MARK_NONE)
302 // No slots, so we allocate a new frame. According to the spec
303 // we could just die here. FIXME: return value.
304 _Jv_JNI_EnsureLocalCapacity (env, 16);
305 // We know the first element of the new frame will be ok.
306 env->locals->vec[0] = obj;
309 mark_for_gc (obj, local_ref_table);
314 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result, int stop)
316 _Jv_JNI_LocalFrame *rf = env->locals;
319 while (rf != NULL && ! done)
321 for (int i = 0; i < rf->size; ++i)
322 if (rf->vec[i] != NULL)
323 unmark_for_gc (rf->vec[i], local_ref_table);
325 // If the frame we just freed is the marker frame, we are done.
326 done = (rf->marker == stop);
328 _Jv_JNI_LocalFrame *n = rf->next;
329 // When N==NULL, we've reached the stack-allocated frame, and we
330 // must not free it. However, we must be sure to clear all its
331 // elements, since we might conceivably reuse it.
334 memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
342 // Update the local frame information.
345 return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
349 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result)
351 return _Jv_JNI_PopLocalFrame (env, result, MARK_USER);
354 // Pop a `system' frame from the stack. This is `extern "C"' as it is
355 // used by the compiler.
357 _Jv_JNI_PopSystemFrame (JNIEnv *env)
359 _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
363 jthrowable t = env->ex;
369 // This function is used from other template functions. It wraps the
370 // return value appropriately; we specialize it so that object returns
371 // are turned into local references.
374 wrap_value (JNIEnv *, T value)
379 // This specialization is used for jobject, jclass, jstring, jarray,
383 wrap_value (JNIEnv *env, T *value)
385 return (value == NULL
387 : (T *) _Jv_JNI_NewLocalRef (env, (jobject) value));
393 _Jv_JNI_GetVersion (JNIEnv *)
395 return JNI_VERSION_1_2;
399 _Jv_JNI_DefineClass (JNIEnv *env, jobject loader,
400 const jbyte *buf, jsize bufLen)
404 jbyteArray bytes = JvNewByteArray (bufLen);
406 jbyte *elts = elements (bytes);
407 memcpy (elts, buf, bufLen * sizeof (jbyte));
409 java::lang::ClassLoader *l
410 = reinterpret_cast<java::lang::ClassLoader *> (loader);
412 jclass result = l->defineClass (bytes, 0, bufLen);
413 return (jclass) wrap_value (env, result);
423 _Jv_JNI_FindClass (JNIEnv *env, const char *name)
425 // FIXME: assume that NAME isn't too long.
426 int len = strlen (name);
428 for (int i = 0; i <= len; ++i)
429 s[i] = (name[i] == '/') ? '.' : name[i];
434 // This might throw an out of memory exception.
435 jstring n = JvNewStringUTF (s);
437 java::lang::ClassLoader *loader = NULL;
438 if (env->klass != NULL)
439 loader = env->klass->getClassLoader ();
443 // FIXME: should use getBaseClassLoader, but we don't have that
445 loader = java::lang::ClassLoader::getSystemClassLoader ();
448 r = loader->loadClass (n);
455 return (jclass) wrap_value (env, r);
459 _Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
461 return (jclass) wrap_value (env, clazz->getSuperclass ());
465 _Jv_JNI_IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
467 return clazz1->isAssignableFrom (clazz2);
471 _Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
473 // We check in case the user did some funky cast.
474 JvAssert (obj != NULL && java::lang::Throwable::class$.isInstance (obj));
480 _Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
482 using namespace java::lang::reflect;
484 JvAssert (java::lang::Throwable::class$.isAssignableFrom (clazz));
489 JArray<jclass> *argtypes
490 = (JArray<jclass> *) JvNewObjectArray (1, &java::lang::Class::class$,
493 jclass *elts = elements (argtypes);
494 elts[0] = &StringClass;
496 Constructor *cons = clazz->getConstructor (argtypes);
498 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
499 jobject *velts = elements (values);
500 velts[0] = JvNewStringUTF (message);
502 jobject obj = cons->newInstance (values);
504 env->ex = reinterpret_cast<jthrowable> (obj);
516 _Jv_JNI_ExceptionOccurred (JNIEnv *env)
518 return (jthrowable) wrap_value (env, env->ex);
522 _Jv_JNI_ExceptionDescribe (JNIEnv *env)
525 env->ex->printStackTrace();
529 _Jv_JNI_ExceptionClear (JNIEnv *env)
535 _Jv_JNI_ExceptionCheck (JNIEnv *env)
537 return env->ex != NULL;
541 _Jv_JNI_FatalError (JNIEnv *, const char *message)
549 _Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
555 _Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
558 using namespace java::lang::reflect;
562 JvAssert (clazz && ! clazz->isArray ());
563 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
564 env->ex = new java::lang::InstantiationException ();
567 // FIXME: will this work for String?
568 obj = JvAllocObject (clazz);
576 return wrap_value (env, obj);
580 _Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
583 return (jclass) wrap_value (env, obj->getClass());
587 _Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
589 return clazz->isInstance(obj);
595 // This section concerns method invocation.
598 template<jboolean is_static>
600 _Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
601 const char *name, const char *sig)
605 _Jv_InitClass (clazz);
607 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
609 // FIXME: assume that SIG isn't too long.
610 int len = strlen (sig);
612 for (int i = 0; i <= len; ++i)
613 s[i] = (sig[i] == '/') ? '.' : sig[i];
614 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) s, -1);
616 JvAssert (! clazz->isPrimitive());
618 using namespace java::lang::reflect;
620 while (clazz != NULL)
622 jint count = JvNumMethods (clazz);
623 jmethodID meth = JvGetFirstMethod (clazz);
625 for (jint i = 0; i < count; ++i)
627 if (((is_static && Modifier::isStatic (meth->accflags))
628 || (! is_static && ! Modifier::isStatic (meth->accflags)))
629 && _Jv_equalUtf8Consts (meth->name, name_u)
630 && _Jv_equalUtf8Consts (meth->signature, sig_u))
633 meth = meth->getNextMethod();
636 clazz = clazz->getSuperclass ();
639 env->ex = new java::lang::NoSuchMethodError ();
649 // This is a helper function which turns a va_list into an array of
650 // `jvalue's. It needs signature information in order to do its work.
651 // The array of values must already be allocated.
653 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
655 jclass *arg_elts = elements (arg_types);
656 for (int i = 0; i < arg_types->length; ++i)
658 if (arg_elts[i] == JvPrimClass (byte))
659 values[i].b = va_arg (vargs, jbyte);
660 else if (arg_elts[i] == JvPrimClass (short))
661 values[i].s = va_arg (vargs, jshort);
662 else if (arg_elts[i] == JvPrimClass (int))
663 values[i].i = va_arg (vargs, jint);
664 else if (arg_elts[i] == JvPrimClass (long))
665 values[i].j = va_arg (vargs, jlong);
666 else if (arg_elts[i] == JvPrimClass (float))
667 values[i].f = va_arg (vargs, jfloat);
668 else if (arg_elts[i] == JvPrimClass (double))
669 values[i].d = va_arg (vargs, jdouble);
670 else if (arg_elts[i] == JvPrimClass (boolean))
671 values[i].z = va_arg (vargs, jboolean);
672 else if (arg_elts[i] == JvPrimClass (char))
673 values[i].c = va_arg (vargs, jchar);
677 values[i].l = va_arg (vargs, jobject);
682 // This can call any sort of method: virtual, "nonvirtual", static, or
684 template<typename T, invocation_type style>
686 _Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
687 jmethodID id, va_list vargs)
690 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
692 jclass decl_class = klass ? klass : obj->getClass ();
693 JvAssert (decl_class != NULL);
696 JArray<jclass> *arg_types;
700 _Jv_GetTypesFromSignature (id, decl_class,
701 &arg_types, &return_type);
703 jvalue args[arg_types->length];
704 array_from_valist (args, arg_types, vargs);
706 // For constructors we need to pass the Class we are instantiating.
707 if (style == constructor)
711 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
712 style == constructor,
713 arg_types, args, &result);
718 // We cheat a little here. FIXME.
719 return wrap_value (env, * (T *) &result);
726 return wrap_value (env, (T) 0);
729 template<typename T, invocation_type style>
731 _Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
732 jmethodID method, ...)
737 va_start (args, method);
738 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
744 template<typename T, invocation_type style>
746 _Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
747 jmethodID id, jvalue *args)
750 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
752 jclass decl_class = klass ? klass : obj->getClass ();
753 JvAssert (decl_class != NULL);
756 JArray<jclass> *arg_types;
759 _Jv_GetTypesFromSignature (id, decl_class,
760 &arg_types, &return_type);
762 // For constructors we need to pass the Class we are instantiating.
763 if (style == constructor)
767 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
768 style == constructor,
769 arg_types, args, &result);
774 // We cheat a little here. FIXME.
775 return wrap_value (env, * (T *) &result);
782 return wrap_value (env, (T) 0);
785 template<invocation_type style>
787 _Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
788 jmethodID id, va_list vargs)
791 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
793 jclass decl_class = klass ? klass : obj->getClass ();
794 JvAssert (decl_class != NULL);
797 JArray<jclass> *arg_types;
800 _Jv_GetTypesFromSignature (id, decl_class,
801 &arg_types, &return_type);
803 jvalue args[arg_types->length];
804 array_from_valist (args, arg_types, vargs);
806 // For constructors we need to pass the Class we are instantiating.
807 if (style == constructor)
810 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
811 style == constructor,
812 arg_types, args, NULL);
823 template<invocation_type style>
825 _Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
826 jmethodID method, ...)
830 va_start (args, method);
831 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
835 template<invocation_type style>
837 _Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
838 jmethodID id, jvalue *args)
841 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
843 jclass decl_class = klass ? klass : obj->getClass ();
844 JvAssert (decl_class != NULL);
847 JArray<jclass> *arg_types;
850 _Jv_GetTypesFromSignature (id, decl_class,
851 &arg_types, &return_type);
853 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
854 style == constructor,
855 arg_types, args, NULL);
866 // Functions with this signature are used to implement functions in
867 // the CallMethod family.
870 _Jv_JNI_CallMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
872 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
875 // Functions with this signature are used to implement functions in
876 // the CallMethod family.
879 _Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
885 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
891 // Functions with this signature are used to implement functions in
892 // the CallMethod family.
895 _Jv_JNI_CallMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
897 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
901 _Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
903 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
907 _Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
912 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
917 _Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
919 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
922 // Functions with this signature are used to implement functions in
923 // the CallStaticMethod family.
926 _Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
927 jmethodID id, va_list args)
929 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
930 JvAssert (java::lang::Class::class$.isInstance (klass));
932 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
935 // Functions with this signature are used to implement functions in
936 // the CallStaticMethod family.
939 _Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
944 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
945 JvAssert (java::lang::Class::class$.isInstance (klass));
948 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
955 // Functions with this signature are used to implement functions in
956 // the CallStaticMethod family.
959 _Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
962 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
963 JvAssert (java::lang::Class::class$.isInstance (klass));
965 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
969 _Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass, jmethodID id,
972 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
976 _Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
981 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
986 _Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass, jmethodID id,
989 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
993 _Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
994 jmethodID id, va_list args)
996 JvAssert (klass && ! klass->isArray ());
997 JvAssert (! strcmp (id->name->data, "<init>")
998 && id->signature->length > 2
999 && id->signature->data[0] == '('
1000 && ! strcmp (&id->signature->data[id->signature->length - 2],
1003 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1008 _Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
1010 JvAssert (klass && ! klass->isArray ());
1011 JvAssert (! strcmp (id->name->data, "<init>")
1012 && id->signature->length > 2
1013 && id->signature->data[0] == '('
1014 && ! strcmp (&id->signature->data[id->signature->length - 2],
1020 va_start (args, id);
1021 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1029 _Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
1032 JvAssert (klass && ! klass->isArray ());
1033 JvAssert (! strcmp (id->name->data, "<init>")
1034 && id->signature->length > 2
1035 && id->signature->data[0] == '('
1036 && ! strcmp (&id->signature->data[id->signature->length - 2],
1039 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
1045 template<typename T>
1047 _Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
1050 T *ptr = (T *) ((char *) obj + field->getOffset ());
1051 return wrap_value (env, *ptr);
1054 template<typename T>
1056 _Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
1059 T *ptr = (T *) ((char *) obj + field->getOffset ());
1063 template<jboolean is_static>
1065 _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
1066 const char *name, const char *sig)
1070 _Jv_InitClass (clazz);
1072 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
1074 // FIXME: assume that SIG isn't too long.
1075 int len = strlen (sig);
1077 for (int i = 0; i <= len; ++i)
1078 s[i] = (sig[i] == '/') ? '.' : sig[i];
1079 jclass field_class = _Jv_FindClassFromSignature ((char *) s, NULL);
1081 // FIXME: what if field_class == NULL?
1083 java::lang::ClassLoader *loader = clazz->getClassLoader ();
1084 while (clazz != NULL)
1086 // We acquire the class lock so that fields aren't resolved
1087 // while we are running.
1088 JvSynchronize sync (clazz);
1090 jint count = (is_static
1091 ? JvNumStaticFields (clazz)
1092 : JvNumInstanceFields (clazz));
1093 jfieldID field = (is_static
1094 ? JvGetFirstStaticField (clazz)
1095 : JvGetFirstInstanceField (clazz));
1096 for (jint i = 0; i < count; ++i)
1098 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
1100 // The field might be resolved or it might not be. It
1101 // is much simpler to always resolve it.
1102 _Jv_ResolveField (field, loader);
1103 if (_Jv_equalUtf8Consts (f_name, a_name)
1104 && field->getClass() == field_class)
1107 field = field->getNextField ();
1110 clazz = clazz->getSuperclass ();
1113 env->ex = new java::lang::NoSuchFieldError ();
1115 catch (jthrowable t)
1122 template<typename T>
1124 _Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
1126 T *ptr = (T *) field->u.addr;
1127 return wrap_value (env, *ptr);
1130 template<typename T>
1132 _Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
1134 T *ptr = (T *) field->u.addr;
1139 _Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
1143 jstring r = _Jv_NewString (unichars, len);
1144 return (jstring) wrap_value (env, r);
1146 catch (jthrowable t)
1154 _Jv_JNI_GetStringLength (JNIEnv *, jstring string)
1156 return string->length();
1159 static const jchar *
1160 _Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
1162 jchar *result = _Jv_GetStringChars (string);
1163 mark_for_gc (string, global_ref_table);
1166 return (const jchar *) result;
1170 _Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
1172 unmark_for_gc (string, global_ref_table);
1176 _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
1180 jstring result = JvNewStringUTF (bytes);
1181 return (jstring) wrap_value (env, result);
1183 catch (jthrowable t)
1191 _Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
1193 return JvGetStringUTFLength (string);
1197 _Jv_JNI_GetStringUTFChars (JNIEnv *env, jstring string, jboolean *isCopy)
1199 jsize len = JvGetStringUTFLength (string);
1202 char *r = (char *) _Jv_Malloc (len + 1);
1203 JvGetStringUTFRegion (string, 0, len, r);
1209 return (const char *) r;
1211 catch (jthrowable t)
1219 _Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
1221 _Jv_Free ((void *) utf);
1225 _Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start, jsize len,
1228 jchar *result = _Jv_GetStringChars (string);
1229 if (start < 0 || start > string->length ()
1230 || len < 0 || start + len > string->length ())
1234 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1236 catch (jthrowable t)
1242 memcpy (buf, &result[start], len * sizeof (jchar));
1246 _Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
1247 jsize len, char *buf)
1249 if (start < 0 || start > str->length ()
1250 || len < 0 || start + len > str->length ())
1254 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1256 catch (jthrowable t)
1262 _Jv_GetStringUTFRegion (str, start, len, buf);
1265 static const jchar *
1266 _Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
1268 jchar *result = _Jv_GetStringChars (str);
1275 _Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
1281 _Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
1283 return array->length;
1287 _Jv_JNI_NewObjectArray (JNIEnv *env, jsize length, jclass elementClass,
1292 jarray result = JvNewObjectArray (length, elementClass, init);
1293 return (jarray) wrap_value (env, result);
1295 catch (jthrowable t)
1303 _Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index)
1305 jobject *elts = elements (array);
1306 return wrap_value (env, elts[index]);
1310 _Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index,
1315 _Jv_CheckArrayStore (array, value);
1316 jobject *elts = elements (array);
1317 elts[index] = value;
1319 catch (jthrowable t)
1325 template<typename T, jclass K>
1327 _Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
1331 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1333 catch (jthrowable t)
1340 template<typename T>
1342 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1345 T *elts = elements (array);
1348 // We elect never to copy.
1351 mark_for_gc (array, global_ref_table);
1355 template<typename T>
1357 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1358 T *, jint /* mode */)
1360 // Note that we ignore MODE. We can do this because we never copy
1361 // the array elements. My reading of the JNI documentation is that
1362 // this is an option for the implementor.
1363 unmark_for_gc (array, global_ref_table);
1366 template<typename T>
1368 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1369 jsize start, jsize len,
1372 // The cast to unsigned lets us save a comparison.
1373 if (start < 0 || len < 0
1374 || (unsigned long) (start + len) > (unsigned long) array->length)
1379 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1381 catch (jthrowable t)
1383 // Could have thown out of memory error.
1389 T *elts = elements (array) + start;
1390 memcpy (buf, elts, len * sizeof (T));
1394 template<typename T>
1396 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1397 jsize start, jsize len, T *buf)
1399 // The cast to unsigned lets us save a comparison.
1400 if (start < 0 || len < 0
1401 || (unsigned long) (start + len) > (unsigned long) array->length)
1406 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1408 catch (jthrowable t)
1415 T *elts = elements (array) + start;
1416 memcpy (elts, buf, len * sizeof (T));
1421 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
1424 // FIXME: does this work?
1425 jclass klass = array->getClass()->getComponentType();
1426 JvAssert (klass->isPrimitive ());
1427 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1434 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
1440 _Jv_JNI_MonitorEnter (JNIEnv *env, jobject obj)
1444 _Jv_MonitorEnter (obj);
1447 catch (jthrowable t)
1455 _Jv_JNI_MonitorExit (JNIEnv *env, jobject obj)
1459 _Jv_MonitorExit (obj);
1462 catch (jthrowable t)
1471 _Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
1476 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1477 field->declaringClass = cls;
1478 field->offset = (char*) fieldID - (char *) cls->fields;
1479 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1480 return wrap_value (env, field);
1482 catch (jthrowable t)
1491 _Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
1493 using namespace java::lang::reflect;
1495 Field *field = reinterpret_cast<Field *> (f);
1496 return _Jv_FromReflectedField (field);
1500 _Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
1503 using namespace java::lang::reflect;
1506 static _Jv_Utf8Const *init_name = _Jv_makeUtf8Const ("<init>", 6);
1508 jobject result = NULL;
1512 if (_Jv_equalUtf8Consts (id->name, init_name))
1515 Constructor *cons = new Constructor ();
1516 cons->offset = (char *) id - (char *) &klass->methods;
1517 cons->declaringClass = klass;
1522 Method *meth = new Method ();
1523 meth->offset = (char *) id - (char *) &klass->methods;
1524 meth->declaringClass = klass;
1528 catch (jthrowable t)
1533 return wrap_value (env, result);
1537 _Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
1539 using namespace java::lang::reflect;
1540 if (Method::class$.isInstance (method))
1541 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1543 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1547 _Jv_JNI_RegisterNatives (JNIEnv *env, jclass k,
1548 const JNINativeMethod *methods,
1552 // For now, this only matters for interpreted methods. FIXME.
1553 if (! _Jv_IsInterpretedClass (k))
1555 // FIXME: throw exception.
1558 _Jv_InterpClass *klass = reinterpret_cast<_Jv_InterpClass *> (k);
1560 // Look at each descriptor given us, and find the corresponding
1561 // method in the class.
1562 for (int j = 0; j < nMethods; ++j)
1566 _Jv_MethodBase **imeths = _Jv_GetFirstMethod (klass);
1567 for (int i = 0; i < JvNumMethods (klass); ++i)
1569 _Jv_MethodBase *meth = imeths[i];
1570 _Jv_Method *self = meth->get_method ();
1572 if (! strcmp (self->name->data, methods[j].name)
1573 && ! strcmp (self->signature->data, methods[j].signature))
1575 if (! (self->accflags
1576 & java::lang::reflect::Modifier::NATIVE))
1579 // Found a match that is native.
1580 _Jv_JNIMethod *jmeth = reinterpret_cast<_Jv_JNIMethod *> (meth);
1581 jmeth->set_function (methods[i].fnPtr);
1589 jstring m = JvNewStringUTF (methods[j].name);
1592 env->ex =new java::lang::NoSuchMethodError (m);
1594 catch (jthrowable t)
1603 #else /* INTERPRETER */
1605 #endif /* INTERPRETER */
1609 _Jv_JNI_UnregisterNatives (JNIEnv *, jclass)
1616 // Add a character to the buffer, encoding properly.
1618 add_char (char *buf, jchar c, int *here)
1622 buf[(*here)++] = '_';
1623 buf[(*here)++] = '1';
1627 buf[(*here)++] = '_';
1628 buf[(*here)++] = '2';
1632 buf[(*here)++] = '_';
1633 buf[(*here)++] = '3';
1636 // Also check for `.' here because we might be passed an internal
1637 // qualified class name like `foo.bar'.
1638 else if (c == '/' || c == '.')
1639 buf[(*here)++] = '_';
1640 else if ((c >= '0' && c <= '9')
1641 || (c >= 'a' && c <= 'z')
1642 || (c >= 'A' && c <= 'Z'))
1643 buf[(*here)++] = (char) c;
1646 // "Unicode" character.
1647 buf[(*here)++] = '_';
1648 buf[(*here)++] = '0';
1649 for (int i = 0; i < 4; ++i)
1652 buf[(*here) + 3 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1659 // Compute a mangled name for a native function. This computes the
1660 // long name, and also returns an index which indicates where a NUL
1661 // can be placed to create the short name. This function assumes that
1662 // the buffer is large enough for its results.
1664 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1665 _Jv_Utf8Const *signature, char *buf, int *long_start)
1667 strcpy (buf, "Java_");
1670 // Add fully qualified class name.
1671 jchar *chars = _Jv_GetStringChars (klass->getName ());
1672 jint len = klass->getName ()->length ();
1673 for (int i = 0; i < len; ++i)
1674 add_char (buf, chars[i], &here);
1676 // Don't use add_char because we need a literal `_'.
1679 const unsigned char *fn = (const unsigned char *) func_name->data;
1680 const unsigned char *limit = fn + func_name->length;
1681 for (int i = 0; ; ++i)
1683 int ch = UTF8_GET (fn, limit);
1686 add_char (buf, ch, &here);
1689 // This is where the long signature begins.
1694 const unsigned char *sig = (const unsigned char *) signature->data;
1695 limit = sig + signature->length;
1696 JvAssert (sig[0] == '(');
1700 int ch = UTF8_GET (sig, limit);
1701 if (ch == ')' || ch < 0)
1703 add_char (buf, ch, &here);
1709 // Return the current thread's JNIEnv; if one does not exist, create
1710 // it. Also create a new system frame for use. This is `extern "C"'
1711 // because the compiler calls it.
1713 _Jv_GetJNIEnvNewFrame (jclass klass)
1715 JNIEnv *env = _Jv_GetCurrentJNIEnv ();
1718 env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1719 env->p = &_Jv_JNIFunctions;
1724 _Jv_SetCurrentJNIEnv (env);
1727 _Jv_JNI_LocalFrame *frame
1728 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1730 * sizeof (jobject)));
1732 frame->marker = MARK_SYSTEM;
1733 frame->size = FRAME_SIZE;
1734 frame->next = env->locals;
1735 env->locals = frame;
1737 for (int i = 0; i < frame->size; ++i)
1738 frame->vec[i] = NULL;
1743 // Return the function which implements a particular JNI method. If
1744 // we can't find the function, we throw the appropriate exception.
1745 // This is `extern "C"' because the compiler uses it.
1747 _Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
1748 _Jv_Utf8Const *signature)
1750 char buf[10 + 6 * (name->length + signature->length)];
1754 mangled_name (klass, name, signature, buf, &long_start);
1755 char c = buf[long_start];
1756 buf[long_start] = '\0';
1757 function = _Jv_FindSymbolInExecutable (buf);
1758 if (function == NULL)
1760 buf[long_start] = c;
1761 function = _Jv_FindSymbolInExecutable (buf);
1762 if (function == NULL)
1764 jstring str = JvNewStringUTF (name->data);
1765 throw new java::lang::AbstractMethodError (str);
1774 // This function is the stub which is used to turn an ordinary (CNI)
1775 // method call into a JNI call.
1777 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
1779 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
1781 JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
1783 // FIXME: we should mark every reference parameter as a local. For
1784 // now we assume a conservative GC, and we assume that the
1785 // references are on the stack somewhere.
1787 // We cache the value that we find, of course, but if we don't find
1788 // a value we don't cache that fact -- we might subsequently load a
1789 // library which finds the function in question.
1790 if (_this->function == NULL)
1791 _this->function = _Jv_LookupJNIMethod (_this->defining_class,
1793 _this->self->signature);
1795 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
1796 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
1799 // First argument is always the environment pointer.
1800 real_args[offset++].ptr = env;
1802 // For a static method, we pass in the Class. For non-static
1803 // methods, the `this' argument is already handled.
1804 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
1805 real_args[offset++].ptr = _this->defining_class;
1807 // Copy over passed-in arguments.
1808 memcpy (&real_args[offset], args, _this->args_raw_size);
1810 // The actual call to the JNI function.
1811 ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
1814 _Jv_JNI_PopSystemFrame (env);
1817 #endif /* INTERPRETER */
1825 // An internal helper function.
1827 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv, void *args)
1829 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
1830 java::lang::ThreadGroup *group = NULL;
1834 // FIXME: do we really want to support 1.1?
1835 if (attach->version != JNI_VERSION_1_2
1836 && attach->version != JNI_VERSION_1_1)
1837 return JNI_EVERSION;
1839 JvAssert (java::lang::ThreadGroup::class$.isInstance (attach->group));
1840 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
1843 // Attaching an already-attached thread is a no-op.
1844 if (_Jv_GetCurrentJNIEnv () != NULL)
1847 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1850 env->p = &_Jv_JNIFunctions;
1854 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1856 * sizeof (jobject)));
1857 if (env->locals == NULL)
1862 *penv = reinterpret_cast<void *> (env);
1864 // This thread might already be a Java thread -- this function might
1865 // have been called simply to set the new JNIEnv.
1866 if (_Jv_ThreadCurrent () == NULL)
1870 _Jv_AttachCurrentThread (name, group);
1872 catch (jthrowable t)
1877 _Jv_SetCurrentJNIEnv (env);
1882 // This is the one actually used by JNI.
1884 _Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
1886 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args);
1890 _Jv_JNI_DestroyJavaVM (JavaVM *vm)
1892 JvAssert (the_vm && vm == the_vm);
1895 if (_Jv_ThreadCurrent () != NULL)
1901 main_name = JvNewStringLatin1 ("main");
1903 catch (jthrowable t)
1908 jint r = _Jv_JNI_AttachCurrentThread (vm,
1910 reinterpret_cast<void **> (&env),
1916 env = _Jv_GetCurrentJNIEnv ();
1920 // Docs say that this always returns an error code.
1925 _Jv_JNI_DetachCurrentThread (JavaVM *)
1927 jint code = _Jv_DetachCurrentThread ();
1928 return code ? JNI_EDETACHED : 0;
1932 _Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
1934 if (_Jv_ThreadCurrent () == NULL)
1937 return JNI_EDETACHED;
1941 // Handle JVMPI requests.
1942 if (version == JVMPI_VERSION_1)
1944 *penv = (void *) &_Jv_JVMPI_Interface;
1949 // FIXME: do we really want to support 1.1?
1950 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_1)
1953 return JNI_EVERSION;
1956 *penv = (void *) _Jv_GetCurrentJNIEnv ();
1961 JNI_GetDefaultJavaVMInitArgs (void *args)
1963 jint version = * (jint *) args;
1964 // Here we only support 1.2.
1965 if (version != JNI_VERSION_1_2)
1966 return JNI_EVERSION;
1968 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1969 ia->version = JNI_VERSION_1_2;
1972 ia->ignoreUnrecognized = true;
1978 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
1980 JvAssert (! the_vm);
1981 // FIXME: synchronize
1982 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
1985 nvm->functions = &_Jv_JNI_InvokeFunctions;
1987 // Parse the arguments.
1990 jint version = * (jint *) args;
1991 // We only support 1.2.
1992 if (version != JNI_VERSION_1_2)
1993 return JNI_EVERSION;
1994 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
1995 for (int i = 0; i < ia->nOptions; ++i)
1997 if (! strcmp (ia->options[i].optionString, "vfprintf")
1998 || ! strcmp (ia->options[i].optionString, "exit")
1999 || ! strcmp (ia->options[i].optionString, "abort"))
2001 // We are required to recognize these, but for now we
2002 // don't handle them in any way. FIXME.
2005 else if (! strncmp (ia->options[i].optionString,
2006 "-verbose", sizeof ("-verbose") - 1))
2008 // We don't do anything with this option either. We
2009 // might want to make sure the argument is valid, but we
2010 // don't really care all that much for now.
2013 else if (! strncmp (ia->options[i].optionString, "-D", 2))
2018 else if (ia->ignoreUnrecognized)
2020 if (ia->options[i].optionString[0] == '_'
2021 || ! strncmp (ia->options[i].optionString, "-X", 2))
2029 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
2042 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
2047 // We only support a single VM.
2050 vm_buffer[0] = the_vm;
2061 // FIXME: synchronize
2064 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2066 nvm->functions = &_Jv_JNI_InvokeFunctions;
2070 // If this is a Java thread, we want to make sure it has an
2071 // associated JNIEnv.
2072 if (_Jv_ThreadCurrent () != NULL)
2075 _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
2082 _Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
2084 *vm = _Jv_GetJavaVM ();
2085 return *vm == NULL ? JNI_ERR : JNI_OK;
2090 #define NOT_IMPL NULL
2091 #define RESERVED NULL
2093 struct JNINativeInterface _Jv_JNIFunctions =
2099 _Jv_JNI_GetVersion, // GetVersion
2100 _Jv_JNI_DefineClass, // DefineClass
2101 _Jv_JNI_FindClass, // FindClass
2102 _Jv_JNI_FromReflectedMethod, // FromReflectedMethod
2103 _Jv_JNI_FromReflectedField, // FromReflectedField
2104 _Jv_JNI_ToReflectedMethod, // ToReflectedMethod
2105 _Jv_JNI_GetSuperclass, // GetSuperclass
2106 _Jv_JNI_IsAssignableFrom, // IsAssignableFrom
2107 _Jv_JNI_ToReflectedField, // ToReflectedField
2108 _Jv_JNI_Throw, // Throw
2109 _Jv_JNI_ThrowNew, // ThrowNew
2110 _Jv_JNI_ExceptionOccurred, // ExceptionOccurred
2111 _Jv_JNI_ExceptionDescribe, // ExceptionDescribe
2112 _Jv_JNI_ExceptionClear, // ExceptionClear
2113 _Jv_JNI_FatalError, // FatalError
2115 _Jv_JNI_PushLocalFrame, // PushLocalFrame
2116 _Jv_JNI_PopLocalFrame, // PopLocalFrame
2117 _Jv_JNI_NewGlobalRef, // NewGlobalRef
2118 _Jv_JNI_DeleteGlobalRef, // DeleteGlobalRef
2119 _Jv_JNI_DeleteLocalRef, // DeleteLocalRef
2121 _Jv_JNI_IsSameObject, // IsSameObject
2123 _Jv_JNI_NewLocalRef, // NewLocalRef
2124 _Jv_JNI_EnsureLocalCapacity, // EnsureLocalCapacity
2126 _Jv_JNI_AllocObject, // AllocObject
2127 _Jv_JNI_NewObject, // NewObject
2128 _Jv_JNI_NewObjectV, // NewObjectV
2129 _Jv_JNI_NewObjectA, // NewObjectA
2130 _Jv_JNI_GetObjectClass, // GetObjectClass
2131 _Jv_JNI_IsInstanceOf, // IsInstanceOf
2132 _Jv_JNI_GetAnyMethodID<false>, // GetMethodID
2134 _Jv_JNI_CallMethod<jobject>, // CallObjectMethod
2135 _Jv_JNI_CallMethodV<jobject>, // CallObjectMethodV
2136 _Jv_JNI_CallMethodA<jobject>, // CallObjectMethodA
2137 _Jv_JNI_CallMethod<jboolean>, // CallBooleanMethod
2138 _Jv_JNI_CallMethodV<jboolean>, // CallBooleanMethodV
2139 _Jv_JNI_CallMethodA<jboolean>, // CallBooleanMethodA
2140 _Jv_JNI_CallMethod<jbyte>, // CallByteMethod
2141 _Jv_JNI_CallMethodV<jbyte>, // CallByteMethodV
2142 _Jv_JNI_CallMethodA<jbyte>, // CallByteMethodA
2143 _Jv_JNI_CallMethod<jchar>, // CallCharMethod
2144 _Jv_JNI_CallMethodV<jchar>, // CallCharMethodV
2145 _Jv_JNI_CallMethodA<jchar>, // CallCharMethodA
2146 _Jv_JNI_CallMethod<jshort>, // CallShortMethod
2147 _Jv_JNI_CallMethodV<jshort>, // CallShortMethodV
2148 _Jv_JNI_CallMethodA<jshort>, // CallShortMethodA
2149 _Jv_JNI_CallMethod<jint>, // CallIntMethod
2150 _Jv_JNI_CallMethodV<jint>, // CallIntMethodV
2151 _Jv_JNI_CallMethodA<jint>, // CallIntMethodA
2152 _Jv_JNI_CallMethod<jlong>, // CallLongMethod
2153 _Jv_JNI_CallMethodV<jlong>, // CallLongMethodV
2154 _Jv_JNI_CallMethodA<jlong>, // CallLongMethodA
2155 _Jv_JNI_CallMethod<jfloat>, // CallFloatMethod
2156 _Jv_JNI_CallMethodV<jfloat>, // CallFloatMethodV
2157 _Jv_JNI_CallMethodA<jfloat>, // CallFloatMethodA
2158 _Jv_JNI_CallMethod<jdouble>, // CallDoubleMethod
2159 _Jv_JNI_CallMethodV<jdouble>, // CallDoubleMethodV
2160 _Jv_JNI_CallMethodA<jdouble>, // CallDoubleMethodA
2161 _Jv_JNI_CallVoidMethod, // CallVoidMethod
2162 _Jv_JNI_CallVoidMethodV, // CallVoidMethodV
2163 _Jv_JNI_CallVoidMethodA, // CallVoidMethodA
2165 // Nonvirtual method invocation functions follow.
2166 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>, // CallNonvirtualObjectMethod
2167 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>, // CallNonvirtualObjectMethodV
2168 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>, // CallNonvirtualObjectMethodA
2169 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>, // CallNonvirtualBooleanMethod
2170 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodV
2171 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodA
2172 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>, // CallNonvirtualByteMethod
2173 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>, // CallNonvirtualByteMethodV
2174 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>, // CallNonvirtualByteMethodA
2175 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>, // CallNonvirtualCharMethod
2176 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>, // CallNonvirtualCharMethodV
2177 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>, // CallNonvirtualCharMethodA
2178 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>, // CallNonvirtualShortMethod
2179 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>, // CallNonvirtualShortMethodV
2180 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>, // CallNonvirtualShortMethodA
2181 _Jv_JNI_CallAnyMethod<jint, nonvirtual>, // CallNonvirtualIntMethod
2182 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>, // CallNonvirtualIntMethodV
2183 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>, // CallNonvirtualIntMethodA
2184 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>, // CallNonvirtualLongMethod
2185 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>, // CallNonvirtualLongMethodV
2186 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>, // CallNonvirtualLongMethodA
2187 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>, // CallNonvirtualFloatMethod
2188 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>, // CallNonvirtualFloatMethodV
2189 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>, // CallNonvirtualFloatMethodA
2190 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>, // CallNonvirtualDoubleMethod
2191 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodV
2192 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodA
2193 _Jv_JNI_CallAnyVoidMethod<nonvirtual>, // CallNonvirtualVoidMethod
2194 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>, // CallNonvirtualVoidMethodV
2195 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>, // CallNonvirtualVoidMethodA
2197 _Jv_JNI_GetAnyFieldID<false>, // GetFieldID
2198 _Jv_JNI_GetField<jobject>, // GetObjectField
2199 _Jv_JNI_GetField<jboolean>, // GetBooleanField
2200 _Jv_JNI_GetField<jbyte>, // GetByteField
2201 _Jv_JNI_GetField<jchar>, // GetCharField
2202 _Jv_JNI_GetField<jshort>, // GetShortField
2203 _Jv_JNI_GetField<jint>, // GetIntField
2204 _Jv_JNI_GetField<jlong>, // GetLongField
2205 _Jv_JNI_GetField<jfloat>, // GetFloatField
2206 _Jv_JNI_GetField<jdouble>, // GetDoubleField
2207 _Jv_JNI_SetField, // SetObjectField
2208 _Jv_JNI_SetField, // SetBooleanField
2209 _Jv_JNI_SetField, // SetByteField
2210 _Jv_JNI_SetField, // SetCharField
2211 _Jv_JNI_SetField, // SetShortField
2212 _Jv_JNI_SetField, // SetIntField
2213 _Jv_JNI_SetField, // SetLongField
2214 _Jv_JNI_SetField, // SetFloatField
2215 _Jv_JNI_SetField, // SetDoubleField
2216 _Jv_JNI_GetAnyMethodID<true>, // GetStaticMethodID
2218 _Jv_JNI_CallStaticMethod<jobject>, // CallStaticObjectMethod
2219 _Jv_JNI_CallStaticMethodV<jobject>, // CallStaticObjectMethodV
2220 _Jv_JNI_CallStaticMethodA<jobject>, // CallStaticObjectMethodA
2221 _Jv_JNI_CallStaticMethod<jboolean>, // CallStaticBooleanMethod
2222 _Jv_JNI_CallStaticMethodV<jboolean>, // CallStaticBooleanMethodV
2223 _Jv_JNI_CallStaticMethodA<jboolean>, // CallStaticBooleanMethodA
2224 _Jv_JNI_CallStaticMethod<jbyte>, // CallStaticByteMethod
2225 _Jv_JNI_CallStaticMethodV<jbyte>, // CallStaticByteMethodV
2226 _Jv_JNI_CallStaticMethodA<jbyte>, // CallStaticByteMethodA
2227 _Jv_JNI_CallStaticMethod<jchar>, // CallStaticCharMethod
2228 _Jv_JNI_CallStaticMethodV<jchar>, // CallStaticCharMethodV
2229 _Jv_JNI_CallStaticMethodA<jchar>, // CallStaticCharMethodA
2230 _Jv_JNI_CallStaticMethod<jshort>, // CallStaticShortMethod
2231 _Jv_JNI_CallStaticMethodV<jshort>, // CallStaticShortMethodV
2232 _Jv_JNI_CallStaticMethodA<jshort>, // CallStaticShortMethodA
2233 _Jv_JNI_CallStaticMethod<jint>, // CallStaticIntMethod
2234 _Jv_JNI_CallStaticMethodV<jint>, // CallStaticIntMethodV
2235 _Jv_JNI_CallStaticMethodA<jint>, // CallStaticIntMethodA
2236 _Jv_JNI_CallStaticMethod<jlong>, // CallStaticLongMethod
2237 _Jv_JNI_CallStaticMethodV<jlong>, // CallStaticLongMethodV
2238 _Jv_JNI_CallStaticMethodA<jlong>, // CallStaticLongMethodA
2239 _Jv_JNI_CallStaticMethod<jfloat>, // CallStaticFloatMethod
2240 _Jv_JNI_CallStaticMethodV<jfloat>, // CallStaticFloatMethodV
2241 _Jv_JNI_CallStaticMethodA<jfloat>, // CallStaticFloatMethodA
2242 _Jv_JNI_CallStaticMethod<jdouble>, // CallStaticDoubleMethod
2243 _Jv_JNI_CallStaticMethodV<jdouble>, // CallStaticDoubleMethodV
2244 _Jv_JNI_CallStaticMethodA<jdouble>, // CallStaticDoubleMethodA
2245 _Jv_JNI_CallStaticVoidMethod, // CallStaticVoidMethod
2246 _Jv_JNI_CallStaticVoidMethodV, // CallStaticVoidMethodV
2247 _Jv_JNI_CallStaticVoidMethodA, // CallStaticVoidMethodA
2249 _Jv_JNI_GetAnyFieldID<true>, // GetStaticFieldID
2250 _Jv_JNI_GetStaticField<jobject>, // GetStaticObjectField
2251 _Jv_JNI_GetStaticField<jboolean>, // GetStaticBooleanField
2252 _Jv_JNI_GetStaticField<jbyte>, // GetStaticByteField
2253 _Jv_JNI_GetStaticField<jchar>, // GetStaticCharField
2254 _Jv_JNI_GetStaticField<jshort>, // GetStaticShortField
2255 _Jv_JNI_GetStaticField<jint>, // GetStaticIntField
2256 _Jv_JNI_GetStaticField<jlong>, // GetStaticLongField
2257 _Jv_JNI_GetStaticField<jfloat>, // GetStaticFloatField
2258 _Jv_JNI_GetStaticField<jdouble>, // GetStaticDoubleField
2259 _Jv_JNI_SetStaticField, // SetStaticObjectField
2260 _Jv_JNI_SetStaticField, // SetStaticBooleanField
2261 _Jv_JNI_SetStaticField, // SetStaticByteField
2262 _Jv_JNI_SetStaticField, // SetStaticCharField
2263 _Jv_JNI_SetStaticField, // SetStaticShortField
2264 _Jv_JNI_SetStaticField, // SetStaticIntField
2265 _Jv_JNI_SetStaticField, // SetStaticLongField
2266 _Jv_JNI_SetStaticField, // SetStaticFloatField
2267 _Jv_JNI_SetStaticField, // SetStaticDoubleField
2268 _Jv_JNI_NewString, // NewString
2269 _Jv_JNI_GetStringLength, // GetStringLength
2270 _Jv_JNI_GetStringChars, // GetStringChars
2271 _Jv_JNI_ReleaseStringChars, // ReleaseStringChars
2272 _Jv_JNI_NewStringUTF, // NewStringUTF
2273 _Jv_JNI_GetStringUTFLength, // GetStringUTFLength
2274 _Jv_JNI_GetStringUTFChars, // GetStringUTFLength
2275 _Jv_JNI_ReleaseStringUTFChars, // ReleaseStringUTFChars
2276 _Jv_JNI_GetArrayLength, // GetArrayLength
2277 _Jv_JNI_NewObjectArray, // NewObjectArray
2278 _Jv_JNI_GetObjectArrayElement, // GetObjectArrayElement
2279 _Jv_JNI_SetObjectArrayElement, // SetObjectArrayElement
2280 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
2282 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>, // NewByteArray
2283 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>, // NewCharArray
2284 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>, // NewShortArray
2285 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>, // NewIntArray
2286 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>, // NewLongArray
2287 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>, // NewFloatArray
2288 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>, // NewDoubleArray
2289 _Jv_JNI_GetPrimitiveArrayElements, // GetBooleanArrayElements
2290 _Jv_JNI_GetPrimitiveArrayElements, // GetByteArrayElements
2291 _Jv_JNI_GetPrimitiveArrayElements, // GetCharArrayElements
2292 _Jv_JNI_GetPrimitiveArrayElements, // GetShortArrayElements
2293 _Jv_JNI_GetPrimitiveArrayElements, // GetIntArrayElements
2294 _Jv_JNI_GetPrimitiveArrayElements, // GetLongArrayElements
2295 _Jv_JNI_GetPrimitiveArrayElements, // GetFloatArrayElements
2296 _Jv_JNI_GetPrimitiveArrayElements, // GetDoubleArrayElements
2297 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseBooleanArrayElements
2298 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseByteArrayElements
2299 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseCharArrayElements
2300 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseShortArrayElements
2301 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseIntArrayElements
2302 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseLongArrayElements
2303 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseFloatArrayElements
2304 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseDoubleArrayElements
2305 _Jv_JNI_GetPrimitiveArrayRegion, // GetBooleanArrayRegion
2306 _Jv_JNI_GetPrimitiveArrayRegion, // GetByteArrayRegion
2307 _Jv_JNI_GetPrimitiveArrayRegion, // GetCharArrayRegion
2308 _Jv_JNI_GetPrimitiveArrayRegion, // GetShortArrayRegion
2309 _Jv_JNI_GetPrimitiveArrayRegion, // GetIntArrayRegion
2310 _Jv_JNI_GetPrimitiveArrayRegion, // GetLongArrayRegion
2311 _Jv_JNI_GetPrimitiveArrayRegion, // GetFloatArrayRegion
2312 _Jv_JNI_GetPrimitiveArrayRegion, // GetDoubleArrayRegion
2313 _Jv_JNI_SetPrimitiveArrayRegion, // SetBooleanArrayRegion
2314 _Jv_JNI_SetPrimitiveArrayRegion, // SetByteArrayRegion
2315 _Jv_JNI_SetPrimitiveArrayRegion, // SetCharArrayRegion
2316 _Jv_JNI_SetPrimitiveArrayRegion, // SetShortArrayRegion
2317 _Jv_JNI_SetPrimitiveArrayRegion, // SetIntArrayRegion
2318 _Jv_JNI_SetPrimitiveArrayRegion, // SetLongArrayRegion
2319 _Jv_JNI_SetPrimitiveArrayRegion, // SetFloatArrayRegion
2320 _Jv_JNI_SetPrimitiveArrayRegion, // SetDoubleArrayRegion
2321 _Jv_JNI_RegisterNatives, // RegisterNatives
2322 _Jv_JNI_UnregisterNatives, // UnregisterNatives
2323 _Jv_JNI_MonitorEnter, // MonitorEnter
2324 _Jv_JNI_MonitorExit, // MonitorExit
2325 _Jv_JNI_GetJavaVM, // GetJavaVM
2327 _Jv_JNI_GetStringRegion, // GetStringRegion
2328 _Jv_JNI_GetStringUTFRegion, // GetStringUTFRegion
2329 _Jv_JNI_GetPrimitiveArrayCritical, // GetPrimitiveArrayCritical
2330 _Jv_JNI_ReleasePrimitiveArrayCritical, // ReleasePrimitiveArrayCritical
2331 _Jv_JNI_GetStringCritical, // GetStringCritical
2332 _Jv_JNI_ReleaseStringCritical, // ReleaseStringCritical
2334 NOT_IMPL /* newweakglobalref */,
2335 NOT_IMPL /* deleteweakglobalref */,
2337 _Jv_JNI_ExceptionCheck
2340 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
2346 _Jv_JNI_DestroyJavaVM,
2347 _Jv_JNI_AttachCurrentThread,
2348 _Jv_JNI_DetachCurrentThread,