1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000, 2001, 2002 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
18 #include <java-assert.h>
24 #include <java/lang/Class.h>
25 #include <java/lang/ClassLoader.h>
26 #include <java/lang/Throwable.h>
27 #include <java/lang/ArrayIndexOutOfBoundsException.h>
28 #include <java/lang/StringIndexOutOfBoundsException.h>
29 #include <java/lang/UnsatisfiedLinkError.h>
30 #include <java/lang/InstantiationException.h>
31 #include <java/lang/NoSuchFieldError.h>
32 #include <java/lang/NoSuchMethodError.h>
33 #include <java/lang/reflect/Constructor.h>
34 #include <java/lang/reflect/Method.h>
35 #include <java/lang/reflect/Modifier.h>
36 #include <java/lang/OutOfMemoryError.h>
37 #include <java/util/IdentityHashMap.h>
38 #include <java/lang/Integer.h>
39 #include <java/lang/ThreadGroup.h>
40 #include <java/lang/Thread.h>
42 #include <gcj/method.h>
43 #include <gcj/field.h>
45 #include <java-interp.h>
46 #include <java-threads.h>
50 // This enum is used to select different template instantiations in
51 // the invocation code.
60 // Forward declarations.
61 extern struct JNINativeInterface _Jv_JNIFunctions;
62 extern struct JNIInvokeInterface _Jv_JNI_InvokeFunctions;
64 // Number of slots in the default frame. The VM must allow at least
68 // Mark value indicating this is an overflow frame.
70 // Mark value indicating this is a user frame.
72 // Mark value indicating this is a system frame.
75 // This structure is used to keep track of local references.
76 struct _Jv_JNI_LocalFrame
78 // This is true if this frame object represents a pushed frame (eg
79 // from PushLocalFrame).
82 // Number of elements in frame.
85 // Next frame in chain.
86 _Jv_JNI_LocalFrame *next;
88 // The elements. These are allocated using the C "struct hack".
92 // This holds a reference count for all local references.
93 static java::util::IdentityHashMap *local_ref_table;
94 // This holds a reference count for all global references.
95 static java::util::IdentityHashMap *global_ref_table;
98 static JavaVM *the_vm;
101 // The only JVMPI interface description.
102 static JVMPI_Interface _Jv_JVMPI_Interface;
105 jvmpiEnableEvent (jint event_type, void *)
109 case JVMPI_EVENT_OBJECT_ALLOC:
110 _Jv_JVMPI_Notify_OBJECT_ALLOC = _Jv_JVMPI_Interface.NotifyEvent;
113 case JVMPI_EVENT_THREAD_START:
114 _Jv_JVMPI_Notify_THREAD_START = _Jv_JVMPI_Interface.NotifyEvent;
117 case JVMPI_EVENT_THREAD_END:
118 _Jv_JVMPI_Notify_THREAD_END = _Jv_JVMPI_Interface.NotifyEvent;
122 return JVMPI_NOT_AVAILABLE;
125 return JVMPI_SUCCESS;
129 jvmpiDisableEvent (jint event_type, void *)
133 case JVMPI_EVENT_OBJECT_ALLOC:
134 _Jv_JVMPI_Notify_OBJECT_ALLOC = NULL;
138 return JVMPI_NOT_AVAILABLE;
141 return JVMPI_SUCCESS;
150 local_ref_table = new java::util::IdentityHashMap;
151 global_ref_table = new java::util::IdentityHashMap;
154 _Jv_JVMPI_Interface.version = 1;
155 _Jv_JVMPI_Interface.EnableEvent = &jvmpiEnableEvent;
156 _Jv_JVMPI_Interface.DisableEvent = &jvmpiDisableEvent;
157 _Jv_JVMPI_Interface.EnableGC = &_Jv_EnableGC;
158 _Jv_JVMPI_Interface.DisableGC = &_Jv_DisableGC;
159 _Jv_JVMPI_Interface.RunGC = &_Jv_RunGC;
163 // Tell the GC that a certain pointer is live.
165 mark_for_gc (jobject obj, java::util::IdentityHashMap *ref_table)
167 JvSynchronize sync (ref_table);
169 using namespace java::lang;
170 Integer *refcount = (Integer *) ref_table->get (obj);
171 jint val = (refcount == NULL) ? 0 : refcount->intValue ();
172 // FIXME: what about out of memory error?
173 ref_table->put (obj, new Integer (val + 1));
178 unmark_for_gc (jobject obj, java::util::IdentityHashMap *ref_table)
180 JvSynchronize sync (ref_table);
182 using namespace java::lang;
183 Integer *refcount = (Integer *) ref_table->get (obj);
185 jint val = refcount->intValue () - 1;
188 ref_table->remove (obj);
190 // FIXME: what about out of memory error?
191 ref_table->put (obj, new Integer (val));
194 // "Unwrap" some random non-reference type. This exists to simplify
195 // other template functions.
203 // Unwrap a weak reference, if required.
208 using namespace gnu::gcj::runtime;
209 // We can compare the class directly because JNIWeakRef is `final'.
210 // Doing it this way is much faster.
211 if (obj == NULL || obj->getClass () != &JNIWeakRef::class$)
213 JNIWeakRef *wr = reinterpret_cast<JNIWeakRef *> (obj);
214 return reinterpret_cast<T *> (wr->get ());
220 _Jv_JNI_NewGlobalRef (JNIEnv *, jobject obj)
222 // This seems weird but I think it is correct.
224 mark_for_gc (obj, global_ref_table);
229 _Jv_JNI_DeleteGlobalRef (JNIEnv *, jobject obj)
231 // This seems weird but I think it is correct.
233 unmark_for_gc (obj, global_ref_table);
237 _Jv_JNI_DeleteLocalRef (JNIEnv *env, jobject obj)
239 _Jv_JNI_LocalFrame *frame;
241 // This seems weird but I think it is correct.
244 for (frame = env->locals; frame != NULL; frame = frame->next)
246 for (int i = 0; i < frame->size; ++i)
248 if (frame->vec[i] == obj)
250 frame->vec[i] = NULL;
251 unmark_for_gc (obj, local_ref_table);
256 // Don't go past a marked frame.
257 JvAssert (frame->marker == MARK_NONE);
264 _Jv_JNI_EnsureLocalCapacity (JNIEnv *env, jint size)
266 // It is easier to just always allocate a new frame of the requested
267 // size. This isn't the most efficient thing, but for now we don't
268 // care. Note that _Jv_JNI_PushLocalFrame relies on this right now.
270 _Jv_JNI_LocalFrame *frame;
273 frame = (_Jv_JNI_LocalFrame *) _Jv_Malloc (sizeof (_Jv_JNI_LocalFrame)
274 + size * sizeof (jobject));
282 frame->marker = MARK_NONE;
284 memset (&frame->vec[0], 0, size * sizeof (jobject));
285 frame->next = env->locals;
292 _Jv_JNI_PushLocalFrame (JNIEnv *env, jint size)
294 jint r = _Jv_JNI_EnsureLocalCapacity (env, size);
298 // The new frame is on top.
299 env->locals->marker = MARK_USER;
305 _Jv_JNI_NewLocalRef (JNIEnv *env, jobject obj)
307 // This seems weird but I think it is correct.
310 // Try to find an open slot somewhere in the topmost frame.
311 _Jv_JNI_LocalFrame *frame = env->locals;
312 bool done = false, set = false;
313 for (; frame != NULL && ! done; frame = frame->next)
315 for (int i = 0; i < frame->size; ++i)
317 if (frame->vec[i] == NULL)
326 // If we found a slot, or if the frame we just searched is the
327 // mark frame, then we are done.
328 if (done || frame == NULL || frame->marker != MARK_NONE)
334 // No slots, so we allocate a new frame. According to the spec
335 // we could just die here. FIXME: return value.
336 _Jv_JNI_EnsureLocalCapacity (env, 16);
337 // We know the first element of the new frame will be ok.
338 env->locals->vec[0] = obj;
341 mark_for_gc (obj, local_ref_table);
346 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result, int stop)
348 _Jv_JNI_LocalFrame *rf = env->locals;
351 while (rf != NULL && ! done)
353 for (int i = 0; i < rf->size; ++i)
354 if (rf->vec[i] != NULL)
355 unmark_for_gc (rf->vec[i], local_ref_table);
357 // If the frame we just freed is the marker frame, we are done.
358 done = (rf->marker == stop);
360 _Jv_JNI_LocalFrame *n = rf->next;
361 // When N==NULL, we've reached the stack-allocated frame, and we
362 // must not free it. However, we must be sure to clear all its
363 // elements, since we might conceivably reuse it.
366 memset (&rf->vec[0], 0, rf->size * sizeof (jobject));
374 // Update the local frame information.
377 return result == NULL ? NULL : _Jv_JNI_NewLocalRef (env, result);
381 _Jv_JNI_PopLocalFrame (JNIEnv *env, jobject result)
383 return _Jv_JNI_PopLocalFrame (env, result, MARK_USER);
386 // Pop a `system' frame from the stack. This is `extern "C"' as it is
387 // used by the compiler.
389 _Jv_JNI_PopSystemFrame (JNIEnv *env)
391 _Jv_JNI_PopLocalFrame (env, NULL, MARK_SYSTEM);
395 jthrowable t = env->ex;
401 // This function is used from other template functions. It wraps the
402 // return value appropriately; we specialize it so that object returns
403 // are turned into local references.
406 wrap_value (JNIEnv *, T value)
411 // This specialization is used for jobject, jclass, jstring, jarray,
415 wrap_value (JNIEnv *env, T *value)
417 return (value == NULL
419 : (T *) _Jv_JNI_NewLocalRef (env, (jobject) value));
425 _Jv_JNI_GetVersion (JNIEnv *)
427 return JNI_VERSION_1_4;
431 _Jv_JNI_DefineClass (JNIEnv *env, jobject loader,
432 const jbyte *buf, jsize bufLen)
436 loader = unwrap (loader);
438 jbyteArray bytes = JvNewByteArray (bufLen);
440 jbyte *elts = elements (bytes);
441 memcpy (elts, buf, bufLen * sizeof (jbyte));
443 java::lang::ClassLoader *l
444 = reinterpret_cast<java::lang::ClassLoader *> (loader);
446 jclass result = l->defineClass (bytes, 0, bufLen);
447 return (jclass) wrap_value (env, result);
457 _Jv_JNI_FindClass (JNIEnv *env, const char *name)
459 // FIXME: assume that NAME isn't too long.
460 int len = strlen (name);
462 for (int i = 0; i <= len; ++i)
463 s[i] = (name[i] == '/') ? '.' : name[i];
468 // This might throw an out of memory exception.
469 jstring n = JvNewStringUTF (s);
471 java::lang::ClassLoader *loader = NULL;
472 if (env->klass != NULL)
473 loader = env->klass->getClassLoader ();
477 // FIXME: should use getBaseClassLoader, but we don't have that
479 loader = java::lang::ClassLoader::getSystemClassLoader ();
482 r = loader->loadClass (n);
489 return (jclass) wrap_value (env, r);
493 _Jv_JNI_GetSuperclass (JNIEnv *env, jclass clazz)
495 return (jclass) wrap_value (env, unwrap (clazz)->getSuperclass ());
499 _Jv_JNI_IsAssignableFrom(JNIEnv *, jclass clazz1, jclass clazz2)
501 return unwrap (clazz1)->isAssignableFrom (unwrap (clazz2));
505 _Jv_JNI_Throw (JNIEnv *env, jthrowable obj)
507 // We check in case the user did some funky cast.
509 JvAssert (obj != NULL && java::lang::Throwable::class$.isInstance (obj));
515 _Jv_JNI_ThrowNew (JNIEnv *env, jclass clazz, const char *message)
517 using namespace java::lang::reflect;
519 clazz = unwrap (clazz);
520 JvAssert (java::lang::Throwable::class$.isAssignableFrom (clazz));
525 JArray<jclass> *argtypes
526 = (JArray<jclass> *) JvNewObjectArray (1, &java::lang::Class::class$,
529 jclass *elts = elements (argtypes);
530 elts[0] = &StringClass;
532 Constructor *cons = clazz->getConstructor (argtypes);
534 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
535 jobject *velts = elements (values);
536 velts[0] = JvNewStringUTF (message);
538 jobject obj = cons->newInstance (values);
540 env->ex = reinterpret_cast<jthrowable> (obj);
552 _Jv_JNI_ExceptionOccurred (JNIEnv *env)
554 return (jthrowable) wrap_value (env, env->ex);
558 _Jv_JNI_ExceptionDescribe (JNIEnv *env)
561 env->ex->printStackTrace();
565 _Jv_JNI_ExceptionClear (JNIEnv *env)
571 _Jv_JNI_ExceptionCheck (JNIEnv *env)
573 return env->ex != NULL;
577 _Jv_JNI_FatalError (JNIEnv *, const char *message)
585 _Jv_JNI_IsSameObject (JNIEnv *, jobject obj1, jobject obj2)
587 return unwrap (obj1) == unwrap (obj2);
591 _Jv_JNI_AllocObject (JNIEnv *env, jclass clazz)
594 using namespace java::lang::reflect;
598 clazz = unwrap (clazz);
599 JvAssert (clazz && ! clazz->isArray ());
600 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
601 env->ex = new java::lang::InstantiationException ();
603 obj = JvAllocObject (clazz);
610 return wrap_value (env, obj);
614 _Jv_JNI_GetObjectClass (JNIEnv *env, jobject obj)
618 return (jclass) wrap_value (env, obj->getClass());
622 _Jv_JNI_IsInstanceOf (JNIEnv *, jobject obj, jclass clazz)
624 return unwrap (clazz)->isInstance(unwrap (obj));
630 // This section concerns method invocation.
633 template<jboolean is_static>
635 _Jv_JNI_GetAnyMethodID (JNIEnv *env, jclass clazz,
636 const char *name, const char *sig)
640 clazz = unwrap (clazz);
641 _Jv_InitClass (clazz);
643 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
645 // FIXME: assume that SIG isn't too long.
646 int len = strlen (sig);
648 for (int i = 0; i <= len; ++i)
649 s[i] = (sig[i] == '/') ? '.' : sig[i];
650 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) s, -1);
652 JvAssert (! clazz->isPrimitive());
654 using namespace java::lang::reflect;
656 while (clazz != NULL)
658 jint count = JvNumMethods (clazz);
659 jmethodID meth = JvGetFirstMethod (clazz);
661 for (jint i = 0; i < count; ++i)
663 if (((is_static && Modifier::isStatic (meth->accflags))
664 || (! is_static && ! Modifier::isStatic (meth->accflags)))
665 && _Jv_equalUtf8Consts (meth->name, name_u)
666 && _Jv_equalUtf8Consts (meth->signature, sig_u))
669 meth = meth->getNextMethod();
672 clazz = clazz->getSuperclass ();
675 env->ex = new java::lang::NoSuchMethodError ();
685 // This is a helper function which turns a va_list into an array of
686 // `jvalue's. It needs signature information in order to do its work.
687 // The array of values must already be allocated.
689 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
691 jclass *arg_elts = elements (arg_types);
692 for (int i = 0; i < arg_types->length; ++i)
694 // Here we assume that sizeof(int) >= sizeof(jint), because we
695 // use `int' when decoding the varargs. Likewise for
696 // float, and double. Also we assume that sizeof(jlong) >=
697 // sizeof(int), i.e. that jlong values are not further
699 JvAssert (sizeof (int) >= sizeof (jint));
700 JvAssert (sizeof (jlong) >= sizeof (int));
701 JvAssert (sizeof (double) >= sizeof (jfloat));
702 JvAssert (sizeof (double) >= sizeof (jdouble));
703 if (arg_elts[i] == JvPrimClass (byte))
704 values[i].b = (jbyte) va_arg (vargs, int);
705 else if (arg_elts[i] == JvPrimClass (short))
706 values[i].s = (jshort) va_arg (vargs, int);
707 else if (arg_elts[i] == JvPrimClass (int))
708 values[i].i = (jint) va_arg (vargs, int);
709 else if (arg_elts[i] == JvPrimClass (long))
710 values[i].j = (jlong) va_arg (vargs, jlong);
711 else if (arg_elts[i] == JvPrimClass (float))
712 values[i].f = (jfloat) va_arg (vargs, double);
713 else if (arg_elts[i] == JvPrimClass (double))
714 values[i].d = (jdouble) va_arg (vargs, double);
715 else if (arg_elts[i] == JvPrimClass (boolean))
716 values[i].z = (jboolean) va_arg (vargs, int);
717 else if (arg_elts[i] == JvPrimClass (char))
718 values[i].c = (jchar) va_arg (vargs, int);
722 values[i].l = unwrap (va_arg (vargs, jobject));
727 // This can call any sort of method: virtual, "nonvirtual", static, or
729 template<typename T, invocation_type style>
731 _Jv_JNI_CallAnyMethodV (JNIEnv *env, jobject obj, jclass klass,
732 jmethodID id, va_list vargs)
735 klass = unwrap (klass);
738 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
740 jclass decl_class = klass ? klass : obj->getClass ();
741 JvAssert (decl_class != NULL);
744 JArray<jclass> *arg_types;
748 _Jv_GetTypesFromSignature (id, decl_class,
749 &arg_types, &return_type);
751 jvalue args[arg_types->length];
752 array_from_valist (args, arg_types, vargs);
754 // For constructors we need to pass the Class we are instantiating.
755 if (style == constructor)
759 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
760 style == constructor,
761 arg_types, args, &result);
766 // We cheat a little here. FIXME.
767 return wrap_value (env, * (T *) &result);
774 return wrap_value (env, (T) 0);
777 template<typename T, invocation_type style>
779 _Jv_JNI_CallAnyMethod (JNIEnv *env, jobject obj, jclass klass,
780 jmethodID method, ...)
785 va_start (args, method);
786 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
792 template<typename T, invocation_type style>
794 _Jv_JNI_CallAnyMethodA (JNIEnv *env, jobject obj, jclass klass,
795 jmethodID id, jvalue *args)
798 klass = unwrap (klass);
801 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
803 jclass decl_class = klass ? klass : obj->getClass ();
804 JvAssert (decl_class != NULL);
807 JArray<jclass> *arg_types;
810 _Jv_GetTypesFromSignature (id, decl_class,
811 &arg_types, &return_type);
813 // For constructors we need to pass the Class we are instantiating.
814 if (style == constructor)
817 // Unwrap arguments as required. Eww.
818 jclass *type_elts = elements (arg_types);
819 jvalue arg_copy[arg_types->length];
820 for (int i = 0; i < arg_types->length; ++i)
822 if (type_elts[i]->isPrimitive ())
823 arg_copy[i] = args[i];
825 arg_copy[i].l = unwrap (args[i].l);
829 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
830 style == constructor,
831 arg_types, arg_copy, &result);
836 // We cheat a little here. FIXME.
837 return wrap_value (env, * (T *) &result);
844 return wrap_value (env, (T) 0);
847 template<invocation_type style>
849 _Jv_JNI_CallAnyVoidMethodV (JNIEnv *env, jobject obj, jclass klass,
850 jmethodID id, va_list vargs)
853 klass = unwrap (klass);
856 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
858 jclass decl_class = klass ? klass : obj->getClass ();
859 JvAssert (decl_class != NULL);
862 JArray<jclass> *arg_types;
865 _Jv_GetTypesFromSignature (id, decl_class,
866 &arg_types, &return_type);
868 jvalue args[arg_types->length];
869 array_from_valist (args, arg_types, vargs);
871 // For constructors we need to pass the Class we are instantiating.
872 if (style == constructor)
875 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
876 style == constructor,
877 arg_types, args, NULL);
888 template<invocation_type style>
890 _Jv_JNI_CallAnyVoidMethod (JNIEnv *env, jobject obj, jclass klass,
891 jmethodID method, ...)
895 va_start (args, method);
896 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
900 template<invocation_type style>
902 _Jv_JNI_CallAnyVoidMethodA (JNIEnv *env, jobject obj, jclass klass,
903 jmethodID id, jvalue *args)
906 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
908 jclass decl_class = klass ? klass : obj->getClass ();
909 JvAssert (decl_class != NULL);
912 JArray<jclass> *arg_types;
915 _Jv_GetTypesFromSignature (id, decl_class,
916 &arg_types, &return_type);
918 // Unwrap arguments as required. Eww.
919 jclass *type_elts = elements (arg_types);
920 jvalue arg_copy[arg_types->length];
921 for (int i = 0; i < arg_types->length; ++i)
923 if (type_elts[i]->isPrimitive ())
924 arg_copy[i] = args[i];
926 arg_copy[i].l = unwrap (args[i].l);
929 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
930 style == constructor,
931 arg_types, args, NULL);
942 // Functions with this signature are used to implement functions in
943 // the CallMethod family.
946 _Jv_JNI_CallMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
948 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
951 // Functions with this signature are used to implement functions in
952 // the CallMethod family.
955 _Jv_JNI_CallMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
961 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
967 // Functions with this signature are used to implement functions in
968 // the CallMethod family.
971 _Jv_JNI_CallMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
973 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
977 _Jv_JNI_CallVoidMethodV (JNIEnv *env, jobject obj, jmethodID id, va_list args)
979 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
983 _Jv_JNI_CallVoidMethod (JNIEnv *env, jobject obj, jmethodID id, ...)
988 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
993 _Jv_JNI_CallVoidMethodA (JNIEnv *env, jobject obj, jmethodID id, jvalue *args)
995 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
998 // Functions with this signature are used to implement functions in
999 // the CallStaticMethod family.
1000 template<typename T>
1002 _Jv_JNI_CallStaticMethodV (JNIEnv *env, jclass klass,
1003 jmethodID id, va_list args)
1005 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
1006 JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
1008 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
1011 // Functions with this signature are used to implement functions in
1012 // the CallStaticMethod family.
1013 template<typename T>
1015 _Jv_JNI_CallStaticMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
1020 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
1021 JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
1023 va_start (args, id);
1024 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
1031 // Functions with this signature are used to implement functions in
1032 // the CallStaticMethod family.
1033 template<typename T>
1035 _Jv_JNI_CallStaticMethodA (JNIEnv *env, jclass klass, jmethodID id,
1038 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
1039 JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
1041 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
1045 _Jv_JNI_CallStaticVoidMethodV (JNIEnv *env, jclass klass, jmethodID id,
1048 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
1052 _Jv_JNI_CallStaticVoidMethod (JNIEnv *env, jclass klass, jmethodID id, ...)
1056 va_start (args, id);
1057 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
1062 _Jv_JNI_CallStaticVoidMethodA (JNIEnv *env, jclass klass, jmethodID id,
1065 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
1069 _Jv_JNI_NewObjectV (JNIEnv *env, jclass klass,
1070 jmethodID id, va_list args)
1072 JvAssert (klass && ! klass->isArray ());
1073 JvAssert (! strcmp (id->name->data, "<init>")
1074 && id->signature->length > 2
1075 && id->signature->data[0] == '('
1076 && ! strcmp (&id->signature->data[id->signature->length - 2],
1079 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1084 _Jv_JNI_NewObject (JNIEnv *env, jclass klass, jmethodID id, ...)
1086 JvAssert (klass && ! klass->isArray ());
1087 JvAssert (! strcmp (id->name->data, "<init>")
1088 && id->signature->length > 2
1089 && id->signature->data[0] == '('
1090 && ! strcmp (&id->signature->data[id->signature->length - 2],
1096 va_start (args, id);
1097 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1105 _Jv_JNI_NewObjectA (JNIEnv *env, jclass klass, jmethodID id,
1108 JvAssert (klass && ! klass->isArray ());
1109 JvAssert (! strcmp (id->name->data, "<init>")
1110 && id->signature->length > 2
1111 && id->signature->data[0] == '('
1112 && ! strcmp (&id->signature->data[id->signature->length - 2],
1115 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
1121 template<typename T>
1123 _Jv_JNI_GetField (JNIEnv *env, jobject obj, jfieldID field)
1127 T *ptr = (T *) ((char *) obj + field->getOffset ());
1128 return wrap_value (env, *ptr);
1131 template<typename T>
1133 _Jv_JNI_SetField (JNIEnv *, jobject obj, jfieldID field, T value)
1136 value = unwrap (value);
1139 T *ptr = (T *) ((char *) obj + field->getOffset ());
1143 template<jboolean is_static>
1145 _Jv_JNI_GetAnyFieldID (JNIEnv *env, jclass clazz,
1146 const char *name, const char *sig)
1150 clazz = unwrap (clazz);
1152 _Jv_InitClass (clazz);
1154 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
1156 // FIXME: assume that SIG isn't too long.
1157 int len = strlen (sig);
1159 for (int i = 0; i <= len; ++i)
1160 s[i] = (sig[i] == '/') ? '.' : sig[i];
1161 jclass field_class = _Jv_FindClassFromSignature ((char *) s, NULL);
1163 // FIXME: what if field_class == NULL?
1165 java::lang::ClassLoader *loader = clazz->getClassLoader ();
1166 while (clazz != NULL)
1168 // We acquire the class lock so that fields aren't resolved
1169 // while we are running.
1170 JvSynchronize sync (clazz);
1172 jint count = (is_static
1173 ? JvNumStaticFields (clazz)
1174 : JvNumInstanceFields (clazz));
1175 jfieldID field = (is_static
1176 ? JvGetFirstStaticField (clazz)
1177 : JvGetFirstInstanceField (clazz));
1178 for (jint i = 0; i < count; ++i)
1180 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
1182 // The field might be resolved or it might not be. It
1183 // is much simpler to always resolve it.
1184 _Jv_ResolveField (field, loader);
1185 if (_Jv_equalUtf8Consts (f_name, a_name)
1186 && field->getClass() == field_class)
1189 field = field->getNextField ();
1192 clazz = clazz->getSuperclass ();
1195 env->ex = new java::lang::NoSuchFieldError ();
1197 catch (jthrowable t)
1204 template<typename T>
1206 _Jv_JNI_GetStaticField (JNIEnv *env, jclass, jfieldID field)
1208 T *ptr = (T *) field->u.addr;
1209 return wrap_value (env, *ptr);
1212 template<typename T>
1214 _Jv_JNI_SetStaticField (JNIEnv *, jclass, jfieldID field, T value)
1216 value = unwrap (value);
1217 T *ptr = (T *) field->u.addr;
1222 _Jv_JNI_NewString (JNIEnv *env, const jchar *unichars, jsize len)
1226 jstring r = _Jv_NewString (unichars, len);
1227 return (jstring) wrap_value (env, r);
1229 catch (jthrowable t)
1237 _Jv_JNI_GetStringLength (JNIEnv *, jstring string)
1239 return unwrap (string)->length();
1242 static const jchar *
1243 _Jv_JNI_GetStringChars (JNIEnv *, jstring string, jboolean *isCopy)
1245 string = unwrap (string);
1246 jchar *result = _Jv_GetStringChars (string);
1247 mark_for_gc (string, global_ref_table);
1250 return (const jchar *) result;
1254 _Jv_JNI_ReleaseStringChars (JNIEnv *, jstring string, const jchar *)
1256 unmark_for_gc (unwrap (string), global_ref_table);
1260 _Jv_JNI_NewStringUTF (JNIEnv *env, const char *bytes)
1264 jstring result = JvNewStringUTF (bytes);
1265 return (jstring) wrap_value (env, result);
1267 catch (jthrowable t)
1275 _Jv_JNI_GetStringUTFLength (JNIEnv *, jstring string)
1277 return JvGetStringUTFLength (unwrap (string));
1281 _Jv_JNI_GetStringUTFChars (JNIEnv *env, jstring string, jboolean *isCopy)
1283 string = unwrap (string);
1284 jsize len = JvGetStringUTFLength (string);
1287 char *r = (char *) _Jv_Malloc (len + 1);
1288 JvGetStringUTFRegion (string, 0, len, r);
1294 return (const char *) r;
1296 catch (jthrowable t)
1304 _Jv_JNI_ReleaseStringUTFChars (JNIEnv *, jstring, const char *utf)
1306 _Jv_Free ((void *) utf);
1310 _Jv_JNI_GetStringRegion (JNIEnv *env, jstring string, jsize start, jsize len,
1313 string = unwrap (string);
1314 jchar *result = _Jv_GetStringChars (string);
1315 if (start < 0 || start > string->length ()
1316 || len < 0 || start + len > string->length ())
1320 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1322 catch (jthrowable t)
1328 memcpy (buf, &result[start], len * sizeof (jchar));
1332 _Jv_JNI_GetStringUTFRegion (JNIEnv *env, jstring str, jsize start,
1333 jsize len, char *buf)
1337 if (start < 0 || start > str->length ()
1338 || len < 0 || start + len > str->length ())
1342 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1344 catch (jthrowable t)
1350 _Jv_GetStringUTFRegion (str, start, len, buf);
1353 static const jchar *
1354 _Jv_JNI_GetStringCritical (JNIEnv *, jstring str, jboolean *isCopy)
1356 jchar *result = _Jv_GetStringChars (unwrap (str));
1363 _Jv_JNI_ReleaseStringCritical (JNIEnv *, jstring, const jchar *)
1369 _Jv_JNI_GetArrayLength (JNIEnv *, jarray array)
1371 return unwrap (array)->length;
1375 _Jv_JNI_NewObjectArray (JNIEnv *env, jsize length, jclass elementClass,
1380 elementClass = unwrap (elementClass);
1381 init = unwrap (init);
1383 jarray result = JvNewObjectArray (length, elementClass, init);
1384 return (jarray) wrap_value (env, result);
1386 catch (jthrowable t)
1394 _Jv_JNI_GetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index)
1396 jobject *elts = elements (unwrap (array));
1397 return wrap_value (env, elts[index]);
1401 _Jv_JNI_SetObjectArrayElement (JNIEnv *env, jobjectArray array, jsize index,
1406 array = unwrap (array);
1407 value = unwrap (value);
1409 _Jv_CheckArrayStore (array, value);
1410 jobject *elts = elements (array);
1411 elts[index] = value;
1413 catch (jthrowable t)
1419 template<typename T, jclass K>
1421 _Jv_JNI_NewPrimitiveArray (JNIEnv *env, jsize length)
1425 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1427 catch (jthrowable t)
1434 template<typename T>
1436 _Jv_JNI_GetPrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1439 array = unwrap (array);
1440 T *elts = elements (array);
1443 // We elect never to copy.
1446 mark_for_gc (array, global_ref_table);
1450 template<typename T>
1452 _Jv_JNI_ReleasePrimitiveArrayElements (JNIEnv *, JArray<T> *array,
1453 T *, jint /* mode */)
1455 array = unwrap (array);
1456 // Note that we ignore MODE. We can do this because we never copy
1457 // the array elements. My reading of the JNI documentation is that
1458 // this is an option for the implementor.
1459 unmark_for_gc (array, global_ref_table);
1462 template<typename T>
1464 _Jv_JNI_GetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1465 jsize start, jsize len,
1468 array = unwrap (array);
1470 // The cast to unsigned lets us save a comparison.
1471 if (start < 0 || len < 0
1472 || (unsigned long) (start + len) > (unsigned long) array->length)
1477 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1479 catch (jthrowable t)
1481 // Could have thown out of memory error.
1487 T *elts = elements (array) + start;
1488 memcpy (buf, elts, len * sizeof (T));
1492 template<typename T>
1494 _Jv_JNI_SetPrimitiveArrayRegion (JNIEnv *env, JArray<T> *array,
1495 jsize start, jsize len, T *buf)
1497 array = unwrap (array);
1499 // The cast to unsigned lets us save a comparison.
1500 if (start < 0 || len < 0
1501 || (unsigned long) (start + len) > (unsigned long) array->length)
1506 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1508 catch (jthrowable t)
1515 T *elts = elements (array) + start;
1516 memcpy (elts, buf, len * sizeof (T));
1521 _Jv_JNI_GetPrimitiveArrayCritical (JNIEnv *, jarray array,
1524 array = unwrap (array);
1525 // FIXME: does this work?
1526 jclass klass = array->getClass()->getComponentType();
1527 JvAssert (klass->isPrimitive ());
1528 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1535 _Jv_JNI_ReleasePrimitiveArrayCritical (JNIEnv *, jarray, void *, jint)
1541 _Jv_JNI_MonitorEnter (JNIEnv *env, jobject obj)
1545 _Jv_MonitorEnter (unwrap (obj));
1548 catch (jthrowable t)
1556 _Jv_JNI_MonitorExit (JNIEnv *env, jobject obj)
1560 _Jv_MonitorExit (unwrap (obj));
1563 catch (jthrowable t)
1572 _Jv_JNI_ToReflectedField (JNIEnv *env, jclass cls, jfieldID fieldID,
1578 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1579 field->declaringClass = cls;
1580 field->offset = (char*) fieldID - (char *) cls->fields;
1581 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1582 return wrap_value (env, field);
1584 catch (jthrowable t)
1593 _Jv_JNI_FromReflectedField (JNIEnv *, jobject f)
1595 using namespace java::lang::reflect;
1598 Field *field = reinterpret_cast<Field *> (f);
1599 return _Jv_FromReflectedField (field);
1603 _Jv_JNI_ToReflectedMethod (JNIEnv *env, jclass klass, jmethodID id,
1606 using namespace java::lang::reflect;
1608 jobject result = NULL;
1609 klass = unwrap (klass);
1613 if (_Jv_equalUtf8Consts (id->name, init_name))
1616 Constructor *cons = new Constructor ();
1617 cons->offset = (char *) id - (char *) &klass->methods;
1618 cons->declaringClass = klass;
1623 Method *meth = new Method ();
1624 meth->offset = (char *) id - (char *) &klass->methods;
1625 meth->declaringClass = klass;
1629 catch (jthrowable t)
1634 return wrap_value (env, result);
1638 _Jv_JNI_FromReflectedMethod (JNIEnv *, jobject method)
1640 using namespace java::lang::reflect;
1641 method = unwrap (method);
1642 if (Method::class$.isInstance (method))
1643 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1645 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1650 _Jv_JNI_NewWeakGlobalRef (JNIEnv *env, jobject obj)
1652 using namespace gnu::gcj::runtime;
1653 JNIWeakRef *ref = NULL;
1657 // This seems weird but I think it is correct.
1659 ref = new JNIWeakRef (obj);
1660 mark_for_gc (ref, global_ref_table);
1662 catch (jthrowable t)
1667 return reinterpret_cast<jweak> (ref);
1671 _Jv_JNI_DeleteWeakGlobalRef (JNIEnv *, jweak obj)
1673 using namespace gnu::gcj::runtime;
1674 JNIWeakRef *ref = reinterpret_cast<JNIWeakRef *> (obj);
1675 unmark_for_gc (ref, global_ref_table);
1681 // Direct byte buffers.
1684 _Jv_JNI_NewDirectByteBuffer (JNIEnv *, void *, jlong)
1686 // For now we don't support this.
1691 _Jv_JNI_GetDirectBufferAddress (JNIEnv *, jobject)
1693 // For now we don't support this.
1698 _Jv_JNI_GetDirectBufferCapacity (JNIEnv *, jobject)
1700 // For now we don't support this.
1706 // Hash table of native methods.
1707 static JNINativeMethod *nathash;
1708 // Number of slots used.
1709 static int nathash_count = 0;
1710 // Number of slots available. Must be power of 2.
1711 static int nathash_size = 0;
1713 #define DELETED_ENTRY ((char *) (~0))
1715 // Compute a hash value for a native method descriptor.
1717 hash (const JNINativeMethod *method)
1724 hash = (31 * hash) + *ptr++;
1726 ptr = method->signature;
1728 hash = (31 * hash) + *ptr++;
1733 // Find the slot where a native method goes.
1734 static JNINativeMethod *
1735 nathash_find_slot (const JNINativeMethod *method)
1737 jint h = hash (method);
1738 int step = (h ^ (h >> 16)) | 1;
1739 int w = h & (nathash_size - 1);
1744 JNINativeMethod *slotp = &nathash[w];
1745 if (slotp->name == NULL)
1748 return &nathash[del];
1752 else if (slotp->name == DELETED_ENTRY)
1754 else if (! strcmp (slotp->name, method->name)
1755 && ! strcmp (slotp->signature, method->signature))
1757 w = (w + step) & (nathash_size - 1);
1761 // Find a method. Return NULL if it isn't in the hash table.
1763 nathash_find (JNINativeMethod *method)
1765 if (nathash == NULL)
1767 JNINativeMethod *slot = nathash_find_slot (method);
1768 if (slot->name == NULL || slot->name == DELETED_ENTRY)
1776 if (nathash == NULL)
1778 nathash_size = 1024;
1780 (JNINativeMethod *) _Jv_AllocBytes (nathash_size
1781 * sizeof (JNINativeMethod));
1782 memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
1786 int savesize = nathash_size;
1787 JNINativeMethod *savehash = nathash;
1790 (JNINativeMethod *) _Jv_AllocBytes (nathash_size
1791 * sizeof (JNINativeMethod));
1792 memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
1794 for (int i = 0; i < savesize; ++i)
1796 if (savehash[i].name != NULL && savehash[i].name != DELETED_ENTRY)
1798 JNINativeMethod *slot = nathash_find_slot (&savehash[i]);
1799 *slot = savehash[i];
1806 nathash_add (const JNINativeMethod *method)
1808 if (3 * nathash_count >= 2 * nathash_size)
1810 JNINativeMethod *slot = nathash_find_slot (method);
1811 // If the slot has a real entry in it, then there is no work to do.
1812 if (slot->name != NULL && slot->name != DELETED_ENTRY)
1815 slot->name = strdup (method->name);
1816 slot->signature = strdup (method->signature);
1817 slot->fnPtr = method->fnPtr;
1821 _Jv_JNI_RegisterNatives (JNIEnv *env, jclass klass,
1822 const JNINativeMethod *methods,
1825 // Synchronize while we do the work. This must match
1826 // synchronization in some other functions that manipulate or use
1827 // the nathash table.
1828 JvSynchronize sync (global_ref_table);
1830 // Look at each descriptor given us, and find the corresponding
1831 // method in the class.
1832 for (int j = 0; j < nMethods; ++j)
1836 _Jv_Method *imeths = JvGetFirstMethod (klass);
1837 for (int i = 0; i < JvNumMethods (klass); ++i)
1839 _Jv_Method *self = &imeths[i];
1841 if (! strcmp (self->name->data, methods[j].name)
1842 && ! strcmp (self->signature->data, methods[j].signature))
1844 if (! (self->accflags
1845 & java::lang::reflect::Modifier::NATIVE))
1848 // Found a match that is native.
1850 nathash_add (&methods[j]);
1858 jstring m = JvNewStringUTF (methods[j].name);
1861 env->ex =new java::lang::NoSuchMethodError (m);
1863 catch (jthrowable t)
1875 _Jv_JNI_UnregisterNatives (JNIEnv *, jclass)
1877 // FIXME -- we could implement this.
1883 // Add a character to the buffer, encoding properly.
1885 add_char (char *buf, jchar c, int *here)
1889 buf[(*here)++] = '_';
1890 buf[(*here)++] = '1';
1894 buf[(*here)++] = '_';
1895 buf[(*here)++] = '2';
1899 buf[(*here)++] = '_';
1900 buf[(*here)++] = '3';
1903 // Also check for `.' here because we might be passed an internal
1904 // qualified class name like `foo.bar'.
1905 else if (c == '/' || c == '.')
1906 buf[(*here)++] = '_';
1907 else if ((c >= '0' && c <= '9')
1908 || (c >= 'a' && c <= 'z')
1909 || (c >= 'A' && c <= 'Z'))
1910 buf[(*here)++] = (char) c;
1913 // "Unicode" character.
1914 buf[(*here)++] = '_';
1915 buf[(*here)++] = '0';
1916 for (int i = 0; i < 4; ++i)
1919 buf[(*here) + 3 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1926 // Compute a mangled name for a native function. This computes the
1927 // long name, and also returns an index which indicates where a NUL
1928 // can be placed to create the short name. This function assumes that
1929 // the buffer is large enough for its results.
1931 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1932 _Jv_Utf8Const *signature, char *buf, int *long_start)
1934 strcpy (buf, "Java_");
1937 // Add fully qualified class name.
1938 jchar *chars = _Jv_GetStringChars (klass->getName ());
1939 jint len = klass->getName ()->length ();
1940 for (int i = 0; i < len; ++i)
1941 add_char (buf, chars[i], &here);
1943 // Don't use add_char because we need a literal `_'.
1946 const unsigned char *fn = (const unsigned char *) func_name->data;
1947 const unsigned char *limit = fn + func_name->length;
1948 for (int i = 0; ; ++i)
1950 int ch = UTF8_GET (fn, limit);
1953 add_char (buf, ch, &here);
1956 // This is where the long signature begins.
1961 const unsigned char *sig = (const unsigned char *) signature->data;
1962 limit = sig + signature->length;
1963 JvAssert (sig[0] == '(');
1967 int ch = UTF8_GET (sig, limit);
1968 if (ch == ')' || ch < 0)
1970 add_char (buf, ch, &here);
1976 // Return the current thread's JNIEnv; if one does not exist, create
1977 // it. Also create a new system frame for use. This is `extern "C"'
1978 // because the compiler calls it.
1980 _Jv_GetJNIEnvNewFrame (jclass klass)
1982 JNIEnv *env = _Jv_GetCurrentJNIEnv ();
1985 env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
1986 env->p = &_Jv_JNIFunctions;
1989 // We set env->ex below.
1991 _Jv_SetCurrentJNIEnv (env);
1994 _Jv_JNI_LocalFrame *frame
1995 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
1997 * sizeof (jobject)));
1999 frame->marker = MARK_SYSTEM;
2000 frame->size = FRAME_SIZE;
2001 frame->next = env->locals;
2003 for (int i = 0; i < frame->size; ++i)
2004 frame->vec[i] = NULL;
2006 env->locals = frame;
2012 // Return the function which implements a particular JNI method. If
2013 // we can't find the function, we throw the appropriate exception.
2014 // This is `extern "C"' because the compiler uses it.
2016 _Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
2017 _Jv_Utf8Const *signature)
2019 char buf[10 + 6 * (name->length + signature->length)];
2023 // Synchronize on something convenient. Right now we use the hash.
2024 JvSynchronize sync (global_ref_table);
2026 // First see if we have an override in the hash table.
2027 strncpy (buf, name->data, name->length);
2028 buf[name->length] = '\0';
2029 strncpy (buf + name->length + 1, signature->data, signature->length);
2030 buf[name->length + signature->length + 1] = '\0';
2031 JNINativeMethod meth;
2033 meth.signature = buf + name->length + 1;
2034 function = nathash_find (&meth);
2035 if (function != NULL)
2038 // If there was no override, then look in the symbol table.
2039 mangled_name (klass, name, signature, buf, &long_start);
2040 char c = buf[long_start];
2041 buf[long_start] = '\0';
2042 function = _Jv_FindSymbolInExecutable (buf);
2043 if (function == NULL)
2045 buf[long_start] = c;
2046 function = _Jv_FindSymbolInExecutable (buf);
2047 if (function == NULL)
2049 jstring str = JvNewStringUTF (name->data);
2050 throw new java::lang::UnsatisfiedLinkError (str);
2059 // This function is the stub which is used to turn an ordinary (CNI)
2060 // method call into a JNI call.
2062 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
2064 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
2066 JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
2068 // FIXME: we should mark every reference parameter as a local. For
2069 // now we assume a conservative GC, and we assume that the
2070 // references are on the stack somewhere.
2072 // We cache the value that we find, of course, but if we don't find
2073 // a value we don't cache that fact -- we might subsequently load a
2074 // library which finds the function in question.
2076 // Synchronize on a convenient object to ensure sanity in case two
2077 // threads reach this point for the same function at the same
2079 JvSynchronize sync (global_ref_table);
2080 if (_this->function == NULL)
2081 _this->function = _Jv_LookupJNIMethod (_this->defining_class,
2083 _this->self->signature);
2086 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
2087 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
2090 // First argument is always the environment pointer.
2091 real_args[offset++].ptr = env;
2093 // For a static method, we pass in the Class. For non-static
2094 // methods, the `this' argument is already handled.
2095 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
2096 real_args[offset++].ptr = _this->defining_class;
2098 // In libgcj, the callee synchronizes.
2099 jobject sync = NULL;
2100 if ((_this->self->accflags & java::lang::reflect::Modifier::SYNCHRONIZED))
2102 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
2103 sync = _this->defining_class;
2105 sync = (jobject) args[0].ptr;
2106 _Jv_MonitorEnter (sync);
2109 // Copy over passed-in arguments.
2110 memcpy (&real_args[offset], args, _this->args_raw_size);
2112 // The actual call to the JNI function.
2113 ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
2117 _Jv_MonitorExit (sync);
2119 _Jv_JNI_PopSystemFrame (env);
2122 #endif /* INTERPRETER */
2130 // An internal helper function.
2132 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv,
2133 void *args, jboolean is_daemon)
2135 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
2136 java::lang::ThreadGroup *group = NULL;
2140 // FIXME: do we really want to support 1.1?
2141 if (attach->version != JNI_VERSION_1_4
2142 && attach->version != JNI_VERSION_1_2
2143 && attach->version != JNI_VERSION_1_1)
2144 return JNI_EVERSION;
2146 JvAssert (java::lang::ThreadGroup::class$.isInstance (attach->group));
2147 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
2150 // Attaching an already-attached thread is a no-op.
2151 if (_Jv_GetCurrentJNIEnv () != NULL)
2154 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
2157 env->p = &_Jv_JNIFunctions;
2161 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
2163 * sizeof (jobject)));
2164 if (env->locals == NULL)
2170 env->locals->marker = MARK_SYSTEM;
2171 env->locals->size = FRAME_SIZE;
2172 env->locals->next = NULL;
2174 for (int i = 0; i < env->locals->size; ++i)
2175 env->locals->vec[i] = NULL;
2177 *penv = reinterpret_cast<void *> (env);
2179 // This thread might already be a Java thread -- this function might
2180 // have been called simply to set the new JNIEnv.
2181 if (_Jv_ThreadCurrent () == NULL)
2186 _Jv_AttachCurrentThreadAsDaemon (name, group);
2188 _Jv_AttachCurrentThread (name, group);
2190 catch (jthrowable t)
2195 _Jv_SetCurrentJNIEnv (env);
2200 // This is the one actually used by JNI.
2202 _Jv_JNI_AttachCurrentThread (JavaVM *vm, void **penv, void *args)
2204 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, false);
2208 _Jv_JNI_AttachCurrentThreadAsDaemon (JavaVM *vm, void **penv, void *args)
2210 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, true);
2214 _Jv_JNI_DestroyJavaVM (JavaVM *vm)
2216 JvAssert (the_vm && vm == the_vm);
2219 if (_Jv_ThreadCurrent () != NULL)
2225 main_name = JvNewStringLatin1 ("main");
2227 catch (jthrowable t)
2232 jint r = _Jv_JNI_AttachCurrentThread (vm, main_name,
2233 reinterpret_cast<void **> (&env),
2239 env = _Jv_GetCurrentJNIEnv ();
2243 // Docs say that this always returns an error code.
2248 _Jv_JNI_DetachCurrentThread (JavaVM *)
2250 jint code = _Jv_DetachCurrentThread ();
2251 return code ? JNI_EDETACHED : 0;
2255 _Jv_JNI_GetEnv (JavaVM *, void **penv, jint version)
2257 if (_Jv_ThreadCurrent () == NULL)
2260 return JNI_EDETACHED;
2264 // Handle JVMPI requests.
2265 if (version == JVMPI_VERSION_1)
2267 *penv = (void *) &_Jv_JVMPI_Interface;
2272 // FIXME: do we really want to support 1.1?
2273 if (version != JNI_VERSION_1_4 && version != JNI_VERSION_1_2
2274 && version != JNI_VERSION_1_1)
2277 return JNI_EVERSION;
2280 *penv = (void *) _Jv_GetCurrentJNIEnv ();
2285 JNI_GetDefaultJavaVMInitArgs (void *args)
2287 jint version = * (jint *) args;
2288 // Here we only support 1.2 and 1.4.
2289 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
2290 return JNI_EVERSION;
2292 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
2293 ia->version = JNI_VERSION_1_4;
2296 ia->ignoreUnrecognized = true;
2302 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
2304 JvAssert (! the_vm);
2306 _Jv_CreateJavaVM (NULL);
2308 // FIXME: synchronize
2309 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2312 nvm->functions = &_Jv_JNI_InvokeFunctions;
2314 // Parse the arguments.
2317 jint version = * (jint *) args;
2318 // We only support 1.2 and 1.4.
2319 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
2320 return JNI_EVERSION;
2321 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
2322 for (int i = 0; i < ia->nOptions; ++i)
2324 if (! strcmp (ia->options[i].optionString, "vfprintf")
2325 || ! strcmp (ia->options[i].optionString, "exit")
2326 || ! strcmp (ia->options[i].optionString, "abort"))
2328 // We are required to recognize these, but for now we
2329 // don't handle them in any way. FIXME.
2332 else if (! strncmp (ia->options[i].optionString,
2333 "-verbose", sizeof ("-verbose") - 1))
2335 // We don't do anything with this option either. We
2336 // might want to make sure the argument is valid, but we
2337 // don't really care all that much for now.
2340 else if (! strncmp (ia->options[i].optionString, "-D", 2))
2345 else if (ia->ignoreUnrecognized)
2347 if (ia->options[i].optionString[0] == '_'
2348 || ! strncmp (ia->options[i].optionString, "-X", 2))
2356 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
2367 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
2372 // We only support a single VM.
2375 vm_buffer[0] = the_vm;
2386 // FIXME: synchronize
2389 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2391 nvm->functions = &_Jv_JNI_InvokeFunctions;
2395 // If this is a Java thread, we want to make sure it has an
2396 // associated JNIEnv.
2397 if (_Jv_ThreadCurrent () != NULL)
2400 _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
2407 _Jv_JNI_GetJavaVM (JNIEnv *, JavaVM **vm)
2409 *vm = _Jv_GetJavaVM ();
2410 return *vm == NULL ? JNI_ERR : JNI_OK;
2415 #define RESERVED NULL
2417 struct JNINativeInterface _Jv_JNIFunctions =
2423 _Jv_JNI_GetVersion, // GetVersion
2424 _Jv_JNI_DefineClass, // DefineClass
2425 _Jv_JNI_FindClass, // FindClass
2426 _Jv_JNI_FromReflectedMethod, // FromReflectedMethod
2427 _Jv_JNI_FromReflectedField, // FromReflectedField
2428 _Jv_JNI_ToReflectedMethod, // ToReflectedMethod
2429 _Jv_JNI_GetSuperclass, // GetSuperclass
2430 _Jv_JNI_IsAssignableFrom, // IsAssignableFrom
2431 _Jv_JNI_ToReflectedField, // ToReflectedField
2432 _Jv_JNI_Throw, // Throw
2433 _Jv_JNI_ThrowNew, // ThrowNew
2434 _Jv_JNI_ExceptionOccurred, // ExceptionOccurred
2435 _Jv_JNI_ExceptionDescribe, // ExceptionDescribe
2436 _Jv_JNI_ExceptionClear, // ExceptionClear
2437 _Jv_JNI_FatalError, // FatalError
2439 _Jv_JNI_PushLocalFrame, // PushLocalFrame
2440 _Jv_JNI_PopLocalFrame, // PopLocalFrame
2441 _Jv_JNI_NewGlobalRef, // NewGlobalRef
2442 _Jv_JNI_DeleteGlobalRef, // DeleteGlobalRef
2443 _Jv_JNI_DeleteLocalRef, // DeleteLocalRef
2445 _Jv_JNI_IsSameObject, // IsSameObject
2447 _Jv_JNI_NewLocalRef, // NewLocalRef
2448 _Jv_JNI_EnsureLocalCapacity, // EnsureLocalCapacity
2450 _Jv_JNI_AllocObject, // AllocObject
2451 _Jv_JNI_NewObject, // NewObject
2452 _Jv_JNI_NewObjectV, // NewObjectV
2453 _Jv_JNI_NewObjectA, // NewObjectA
2454 _Jv_JNI_GetObjectClass, // GetObjectClass
2455 _Jv_JNI_IsInstanceOf, // IsInstanceOf
2456 _Jv_JNI_GetAnyMethodID<false>, // GetMethodID
2458 _Jv_JNI_CallMethod<jobject>, // CallObjectMethod
2459 _Jv_JNI_CallMethodV<jobject>, // CallObjectMethodV
2460 _Jv_JNI_CallMethodA<jobject>, // CallObjectMethodA
2461 _Jv_JNI_CallMethod<jboolean>, // CallBooleanMethod
2462 _Jv_JNI_CallMethodV<jboolean>, // CallBooleanMethodV
2463 _Jv_JNI_CallMethodA<jboolean>, // CallBooleanMethodA
2464 _Jv_JNI_CallMethod<jbyte>, // CallByteMethod
2465 _Jv_JNI_CallMethodV<jbyte>, // CallByteMethodV
2466 _Jv_JNI_CallMethodA<jbyte>, // CallByteMethodA
2467 _Jv_JNI_CallMethod<jchar>, // CallCharMethod
2468 _Jv_JNI_CallMethodV<jchar>, // CallCharMethodV
2469 _Jv_JNI_CallMethodA<jchar>, // CallCharMethodA
2470 _Jv_JNI_CallMethod<jshort>, // CallShortMethod
2471 _Jv_JNI_CallMethodV<jshort>, // CallShortMethodV
2472 _Jv_JNI_CallMethodA<jshort>, // CallShortMethodA
2473 _Jv_JNI_CallMethod<jint>, // CallIntMethod
2474 _Jv_JNI_CallMethodV<jint>, // CallIntMethodV
2475 _Jv_JNI_CallMethodA<jint>, // CallIntMethodA
2476 _Jv_JNI_CallMethod<jlong>, // CallLongMethod
2477 _Jv_JNI_CallMethodV<jlong>, // CallLongMethodV
2478 _Jv_JNI_CallMethodA<jlong>, // CallLongMethodA
2479 _Jv_JNI_CallMethod<jfloat>, // CallFloatMethod
2480 _Jv_JNI_CallMethodV<jfloat>, // CallFloatMethodV
2481 _Jv_JNI_CallMethodA<jfloat>, // CallFloatMethodA
2482 _Jv_JNI_CallMethod<jdouble>, // CallDoubleMethod
2483 _Jv_JNI_CallMethodV<jdouble>, // CallDoubleMethodV
2484 _Jv_JNI_CallMethodA<jdouble>, // CallDoubleMethodA
2485 _Jv_JNI_CallVoidMethod, // CallVoidMethod
2486 _Jv_JNI_CallVoidMethodV, // CallVoidMethodV
2487 _Jv_JNI_CallVoidMethodA, // CallVoidMethodA
2489 // Nonvirtual method invocation functions follow.
2490 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>, // CallNonvirtualObjectMethod
2491 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>, // CallNonvirtualObjectMethodV
2492 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>, // CallNonvirtualObjectMethodA
2493 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>, // CallNonvirtualBooleanMethod
2494 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodV
2495 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodA
2496 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>, // CallNonvirtualByteMethod
2497 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>, // CallNonvirtualByteMethodV
2498 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>, // CallNonvirtualByteMethodA
2499 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>, // CallNonvirtualCharMethod
2500 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>, // CallNonvirtualCharMethodV
2501 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>, // CallNonvirtualCharMethodA
2502 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>, // CallNonvirtualShortMethod
2503 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>, // CallNonvirtualShortMethodV
2504 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>, // CallNonvirtualShortMethodA
2505 _Jv_JNI_CallAnyMethod<jint, nonvirtual>, // CallNonvirtualIntMethod
2506 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>, // CallNonvirtualIntMethodV
2507 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>, // CallNonvirtualIntMethodA
2508 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>, // CallNonvirtualLongMethod
2509 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>, // CallNonvirtualLongMethodV
2510 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>, // CallNonvirtualLongMethodA
2511 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>, // CallNonvirtualFloatMethod
2512 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>, // CallNonvirtualFloatMethodV
2513 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>, // CallNonvirtualFloatMethodA
2514 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>, // CallNonvirtualDoubleMethod
2515 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodV
2516 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodA
2517 _Jv_JNI_CallAnyVoidMethod<nonvirtual>, // CallNonvirtualVoidMethod
2518 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>, // CallNonvirtualVoidMethodV
2519 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>, // CallNonvirtualVoidMethodA
2521 _Jv_JNI_GetAnyFieldID<false>, // GetFieldID
2522 _Jv_JNI_GetField<jobject>, // GetObjectField
2523 _Jv_JNI_GetField<jboolean>, // GetBooleanField
2524 _Jv_JNI_GetField<jbyte>, // GetByteField
2525 _Jv_JNI_GetField<jchar>, // GetCharField
2526 _Jv_JNI_GetField<jshort>, // GetShortField
2527 _Jv_JNI_GetField<jint>, // GetIntField
2528 _Jv_JNI_GetField<jlong>, // GetLongField
2529 _Jv_JNI_GetField<jfloat>, // GetFloatField
2530 _Jv_JNI_GetField<jdouble>, // GetDoubleField
2531 _Jv_JNI_SetField, // SetObjectField
2532 _Jv_JNI_SetField, // SetBooleanField
2533 _Jv_JNI_SetField, // SetByteField
2534 _Jv_JNI_SetField, // SetCharField
2535 _Jv_JNI_SetField, // SetShortField
2536 _Jv_JNI_SetField, // SetIntField
2537 _Jv_JNI_SetField, // SetLongField
2538 _Jv_JNI_SetField, // SetFloatField
2539 _Jv_JNI_SetField, // SetDoubleField
2540 _Jv_JNI_GetAnyMethodID<true>, // GetStaticMethodID
2542 _Jv_JNI_CallStaticMethod<jobject>, // CallStaticObjectMethod
2543 _Jv_JNI_CallStaticMethodV<jobject>, // CallStaticObjectMethodV
2544 _Jv_JNI_CallStaticMethodA<jobject>, // CallStaticObjectMethodA
2545 _Jv_JNI_CallStaticMethod<jboolean>, // CallStaticBooleanMethod
2546 _Jv_JNI_CallStaticMethodV<jboolean>, // CallStaticBooleanMethodV
2547 _Jv_JNI_CallStaticMethodA<jboolean>, // CallStaticBooleanMethodA
2548 _Jv_JNI_CallStaticMethod<jbyte>, // CallStaticByteMethod
2549 _Jv_JNI_CallStaticMethodV<jbyte>, // CallStaticByteMethodV
2550 _Jv_JNI_CallStaticMethodA<jbyte>, // CallStaticByteMethodA
2551 _Jv_JNI_CallStaticMethod<jchar>, // CallStaticCharMethod
2552 _Jv_JNI_CallStaticMethodV<jchar>, // CallStaticCharMethodV
2553 _Jv_JNI_CallStaticMethodA<jchar>, // CallStaticCharMethodA
2554 _Jv_JNI_CallStaticMethod<jshort>, // CallStaticShortMethod
2555 _Jv_JNI_CallStaticMethodV<jshort>, // CallStaticShortMethodV
2556 _Jv_JNI_CallStaticMethodA<jshort>, // CallStaticShortMethodA
2557 _Jv_JNI_CallStaticMethod<jint>, // CallStaticIntMethod
2558 _Jv_JNI_CallStaticMethodV<jint>, // CallStaticIntMethodV
2559 _Jv_JNI_CallStaticMethodA<jint>, // CallStaticIntMethodA
2560 _Jv_JNI_CallStaticMethod<jlong>, // CallStaticLongMethod
2561 _Jv_JNI_CallStaticMethodV<jlong>, // CallStaticLongMethodV
2562 _Jv_JNI_CallStaticMethodA<jlong>, // CallStaticLongMethodA
2563 _Jv_JNI_CallStaticMethod<jfloat>, // CallStaticFloatMethod
2564 _Jv_JNI_CallStaticMethodV<jfloat>, // CallStaticFloatMethodV
2565 _Jv_JNI_CallStaticMethodA<jfloat>, // CallStaticFloatMethodA
2566 _Jv_JNI_CallStaticMethod<jdouble>, // CallStaticDoubleMethod
2567 _Jv_JNI_CallStaticMethodV<jdouble>, // CallStaticDoubleMethodV
2568 _Jv_JNI_CallStaticMethodA<jdouble>, // CallStaticDoubleMethodA
2569 _Jv_JNI_CallStaticVoidMethod, // CallStaticVoidMethod
2570 _Jv_JNI_CallStaticVoidMethodV, // CallStaticVoidMethodV
2571 _Jv_JNI_CallStaticVoidMethodA, // CallStaticVoidMethodA
2573 _Jv_JNI_GetAnyFieldID<true>, // GetStaticFieldID
2574 _Jv_JNI_GetStaticField<jobject>, // GetStaticObjectField
2575 _Jv_JNI_GetStaticField<jboolean>, // GetStaticBooleanField
2576 _Jv_JNI_GetStaticField<jbyte>, // GetStaticByteField
2577 _Jv_JNI_GetStaticField<jchar>, // GetStaticCharField
2578 _Jv_JNI_GetStaticField<jshort>, // GetStaticShortField
2579 _Jv_JNI_GetStaticField<jint>, // GetStaticIntField
2580 _Jv_JNI_GetStaticField<jlong>, // GetStaticLongField
2581 _Jv_JNI_GetStaticField<jfloat>, // GetStaticFloatField
2582 _Jv_JNI_GetStaticField<jdouble>, // GetStaticDoubleField
2583 _Jv_JNI_SetStaticField, // SetStaticObjectField
2584 _Jv_JNI_SetStaticField, // SetStaticBooleanField
2585 _Jv_JNI_SetStaticField, // SetStaticByteField
2586 _Jv_JNI_SetStaticField, // SetStaticCharField
2587 _Jv_JNI_SetStaticField, // SetStaticShortField
2588 _Jv_JNI_SetStaticField, // SetStaticIntField
2589 _Jv_JNI_SetStaticField, // SetStaticLongField
2590 _Jv_JNI_SetStaticField, // SetStaticFloatField
2591 _Jv_JNI_SetStaticField, // SetStaticDoubleField
2592 _Jv_JNI_NewString, // NewString
2593 _Jv_JNI_GetStringLength, // GetStringLength
2594 _Jv_JNI_GetStringChars, // GetStringChars
2595 _Jv_JNI_ReleaseStringChars, // ReleaseStringChars
2596 _Jv_JNI_NewStringUTF, // NewStringUTF
2597 _Jv_JNI_GetStringUTFLength, // GetStringUTFLength
2598 _Jv_JNI_GetStringUTFChars, // GetStringUTFChars
2599 _Jv_JNI_ReleaseStringUTFChars, // ReleaseStringUTFChars
2600 _Jv_JNI_GetArrayLength, // GetArrayLength
2601 _Jv_JNI_NewObjectArray, // NewObjectArray
2602 _Jv_JNI_GetObjectArrayElement, // GetObjectArrayElement
2603 _Jv_JNI_SetObjectArrayElement, // SetObjectArrayElement
2604 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
2606 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>, // NewByteArray
2607 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>, // NewCharArray
2608 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>, // NewShortArray
2609 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>, // NewIntArray
2610 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>, // NewLongArray
2611 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>, // NewFloatArray
2612 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>, // NewDoubleArray
2613 _Jv_JNI_GetPrimitiveArrayElements, // GetBooleanArrayElements
2614 _Jv_JNI_GetPrimitiveArrayElements, // GetByteArrayElements
2615 _Jv_JNI_GetPrimitiveArrayElements, // GetCharArrayElements
2616 _Jv_JNI_GetPrimitiveArrayElements, // GetShortArrayElements
2617 _Jv_JNI_GetPrimitiveArrayElements, // GetIntArrayElements
2618 _Jv_JNI_GetPrimitiveArrayElements, // GetLongArrayElements
2619 _Jv_JNI_GetPrimitiveArrayElements, // GetFloatArrayElements
2620 _Jv_JNI_GetPrimitiveArrayElements, // GetDoubleArrayElements
2621 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseBooleanArrayElements
2622 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseByteArrayElements
2623 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseCharArrayElements
2624 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseShortArrayElements
2625 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseIntArrayElements
2626 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseLongArrayElements
2627 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseFloatArrayElements
2628 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseDoubleArrayElements
2629 _Jv_JNI_GetPrimitiveArrayRegion, // GetBooleanArrayRegion
2630 _Jv_JNI_GetPrimitiveArrayRegion, // GetByteArrayRegion
2631 _Jv_JNI_GetPrimitiveArrayRegion, // GetCharArrayRegion
2632 _Jv_JNI_GetPrimitiveArrayRegion, // GetShortArrayRegion
2633 _Jv_JNI_GetPrimitiveArrayRegion, // GetIntArrayRegion
2634 _Jv_JNI_GetPrimitiveArrayRegion, // GetLongArrayRegion
2635 _Jv_JNI_GetPrimitiveArrayRegion, // GetFloatArrayRegion
2636 _Jv_JNI_GetPrimitiveArrayRegion, // GetDoubleArrayRegion
2637 _Jv_JNI_SetPrimitiveArrayRegion, // SetBooleanArrayRegion
2638 _Jv_JNI_SetPrimitiveArrayRegion, // SetByteArrayRegion
2639 _Jv_JNI_SetPrimitiveArrayRegion, // SetCharArrayRegion
2640 _Jv_JNI_SetPrimitiveArrayRegion, // SetShortArrayRegion
2641 _Jv_JNI_SetPrimitiveArrayRegion, // SetIntArrayRegion
2642 _Jv_JNI_SetPrimitiveArrayRegion, // SetLongArrayRegion
2643 _Jv_JNI_SetPrimitiveArrayRegion, // SetFloatArrayRegion
2644 _Jv_JNI_SetPrimitiveArrayRegion, // SetDoubleArrayRegion
2645 _Jv_JNI_RegisterNatives, // RegisterNatives
2646 _Jv_JNI_UnregisterNatives, // UnregisterNatives
2647 _Jv_JNI_MonitorEnter, // MonitorEnter
2648 _Jv_JNI_MonitorExit, // MonitorExit
2649 _Jv_JNI_GetJavaVM, // GetJavaVM
2651 _Jv_JNI_GetStringRegion, // GetStringRegion
2652 _Jv_JNI_GetStringUTFRegion, // GetStringUTFRegion
2653 _Jv_JNI_GetPrimitiveArrayCritical, // GetPrimitiveArrayCritical
2654 _Jv_JNI_ReleasePrimitiveArrayCritical, // ReleasePrimitiveArrayCritical
2655 _Jv_JNI_GetStringCritical, // GetStringCritical
2656 _Jv_JNI_ReleaseStringCritical, // ReleaseStringCritical
2658 _Jv_JNI_NewWeakGlobalRef, // NewWeakGlobalRef
2659 _Jv_JNI_DeleteWeakGlobalRef, // DeleteWeakGlobalRef
2661 _Jv_JNI_ExceptionCheck, // ExceptionCheck
2663 _Jv_JNI_NewDirectByteBuffer, // NewDirectByteBuffer
2664 _Jv_JNI_GetDirectBufferAddress, // GetDirectBufferAddress
2665 _Jv_JNI_GetDirectBufferCapacity // GetDirectBufferCapacity
2668 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
2674 _Jv_JNI_DestroyJavaVM,
2675 _Jv_JNI_AttachCurrentThread,
2676 _Jv_JNI_DetachCurrentThread,
2678 _Jv_JNI_AttachCurrentThreadAsDaemon