1 // jni.cc - JNI implementation, including the jump table.
3 /* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 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 (JNICALL _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 (JNICALL _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 (JNICALL _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 (JNICALL _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 (JNICALL _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 (JNICALL _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 (JNICALL _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 (JNICALL _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 (JNICALL _Jv_JNI_GetVersion) (JNIEnv *)
427 return JNI_VERSION_1_4;
431 (JNICALL _Jv_JNI_DefineClass) (JNIEnv *env, const char *name, jobject loader,
432 const jbyte *buf, jsize bufLen)
436 loader = unwrap (loader);
438 jstring sname = JvNewStringUTF (name);
439 jbyteArray bytes = JvNewByteArray (bufLen);
441 jbyte *elts = elements (bytes);
442 memcpy (elts, buf, bufLen * sizeof (jbyte));
444 java::lang::ClassLoader *l
445 = reinterpret_cast<java::lang::ClassLoader *> (loader);
447 jclass result = l->defineClass (sname, bytes, 0, bufLen);
448 return (jclass) wrap_value (env, result);
458 (JNICALL _Jv_JNI_FindClass) (JNIEnv *env, const char *name)
460 // FIXME: assume that NAME isn't too long.
461 int len = strlen (name);
463 for (int i = 0; i <= len; ++i)
464 s[i] = (name[i] == '/') ? '.' : name[i];
469 // This might throw an out of memory exception.
470 jstring n = JvNewStringUTF (s);
472 java::lang::ClassLoader *loader = NULL;
473 if (env->klass != NULL)
474 loader = env->klass->getClassLoader ();
478 // FIXME: should use getBaseClassLoader, but we don't have that
480 loader = java::lang::ClassLoader::getSystemClassLoader ();
483 r = loader->loadClass (n);
490 return (jclass) wrap_value (env, r);
494 (JNICALL _Jv_JNI_GetSuperclass) (JNIEnv *env, jclass clazz)
496 return (jclass) wrap_value (env, unwrap (clazz)->getSuperclass ());
500 (JNICALL _Jv_JNI_IsAssignableFrom) (JNIEnv *, jclass clazz1, jclass clazz2)
502 return unwrap (clazz1)->isAssignableFrom (unwrap (clazz2));
506 (JNICALL _Jv_JNI_Throw) (JNIEnv *env, jthrowable obj)
508 // We check in case the user did some funky cast.
510 JvAssert (obj != NULL && java::lang::Throwable::class$.isInstance (obj));
516 (JNICALL _Jv_JNI_ThrowNew) (JNIEnv *env, jclass clazz, const char *message)
518 using namespace java::lang::reflect;
520 clazz = unwrap (clazz);
521 JvAssert (java::lang::Throwable::class$.isAssignableFrom (clazz));
526 JArray<jclass> *argtypes
527 = (JArray<jclass> *) JvNewObjectArray (1, &java::lang::Class::class$,
530 jclass *elts = elements (argtypes);
531 elts[0] = &StringClass;
533 Constructor *cons = clazz->getConstructor (argtypes);
535 jobjectArray values = JvNewObjectArray (1, &StringClass, NULL);
536 jobject *velts = elements (values);
537 velts[0] = JvNewStringUTF (message);
539 jobject obj = cons->newInstance (values);
541 env->ex = reinterpret_cast<jthrowable> (obj);
553 (JNICALL _Jv_JNI_ExceptionOccurred) (JNIEnv *env)
555 return (jthrowable) wrap_value (env, env->ex);
559 (JNICALL _Jv_JNI_ExceptionDescribe) (JNIEnv *env)
562 env->ex->printStackTrace();
566 (JNICALL _Jv_JNI_ExceptionClear) (JNIEnv *env)
572 (JNICALL _Jv_JNI_ExceptionCheck) (JNIEnv *env)
574 return env->ex != NULL;
578 (JNICALL _Jv_JNI_FatalError) (JNIEnv *, const char *message)
586 (JNICALL _Jv_JNI_IsSameObject) (JNIEnv *, jobject obj1, jobject obj2)
588 return unwrap (obj1) == unwrap (obj2);
592 (JNICALL _Jv_JNI_AllocObject) (JNIEnv *env, jclass clazz)
595 using namespace java::lang::reflect;
599 clazz = unwrap (clazz);
600 JvAssert (clazz && ! clazz->isArray ());
601 if (clazz->isInterface() || Modifier::isAbstract(clazz->getModifiers()))
602 env->ex = new java::lang::InstantiationException ();
604 obj = JvAllocObject (clazz);
611 return wrap_value (env, obj);
615 (JNICALL _Jv_JNI_GetObjectClass) (JNIEnv *env, jobject obj)
619 return (jclass) wrap_value (env, obj->getClass());
623 (JNICALL _Jv_JNI_IsInstanceOf) (JNIEnv *, jobject obj, jclass clazz)
625 return unwrap (clazz)->isInstance(unwrap (obj));
631 // This section concerns method invocation.
634 template<jboolean is_static>
636 (JNICALL _Jv_JNI_GetAnyMethodID) (JNIEnv *env, jclass clazz,
637 const char *name, const char *sig)
641 clazz = unwrap (clazz);
642 _Jv_InitClass (clazz);
644 _Jv_Utf8Const *name_u = _Jv_makeUtf8Const ((char *) name, -1);
646 // FIXME: assume that SIG isn't too long.
647 int len = strlen (sig);
649 for (int i = 0; i <= len; ++i)
650 s[i] = (sig[i] == '/') ? '.' : sig[i];
651 _Jv_Utf8Const *sig_u = _Jv_makeUtf8Const ((char *) s, -1);
653 JvAssert (! clazz->isPrimitive());
655 using namespace java::lang::reflect;
657 while (clazz != NULL)
659 jint count = JvNumMethods (clazz);
660 jmethodID meth = JvGetFirstMethod (clazz);
662 for (jint i = 0; i < count; ++i)
664 if (((is_static && Modifier::isStatic (meth->accflags))
665 || (! is_static && ! Modifier::isStatic (meth->accflags)))
666 && _Jv_equalUtf8Consts (meth->name, name_u)
667 && _Jv_equalUtf8Consts (meth->signature, sig_u))
670 meth = meth->getNextMethod();
673 clazz = clazz->getSuperclass ();
676 env->ex = new java::lang::NoSuchMethodError ();
686 // This is a helper function which turns a va_list into an array of
687 // `jvalue's. It needs signature information in order to do its work.
688 // The array of values must already be allocated.
690 array_from_valist (jvalue *values, JArray<jclass> *arg_types, va_list vargs)
692 jclass *arg_elts = elements (arg_types);
693 for (int i = 0; i < arg_types->length; ++i)
695 // Here we assume that sizeof(int) >= sizeof(jint), because we
696 // use `int' when decoding the varargs. Likewise for
697 // float, and double. Also we assume that sizeof(jlong) >=
698 // sizeof(int), i.e. that jlong values are not further
700 JvAssert (sizeof (int) >= sizeof (jint));
701 JvAssert (sizeof (jlong) >= sizeof (int));
702 JvAssert (sizeof (double) >= sizeof (jfloat));
703 JvAssert (sizeof (double) >= sizeof (jdouble));
704 if (arg_elts[i] == JvPrimClass (byte))
705 values[i].b = (jbyte) va_arg (vargs, int);
706 else if (arg_elts[i] == JvPrimClass (short))
707 values[i].s = (jshort) va_arg (vargs, int);
708 else if (arg_elts[i] == JvPrimClass (int))
709 values[i].i = (jint) va_arg (vargs, int);
710 else if (arg_elts[i] == JvPrimClass (long))
711 values[i].j = (jlong) va_arg (vargs, jlong);
712 else if (arg_elts[i] == JvPrimClass (float))
713 values[i].f = (jfloat) va_arg (vargs, double);
714 else if (arg_elts[i] == JvPrimClass (double))
715 values[i].d = (jdouble) va_arg (vargs, double);
716 else if (arg_elts[i] == JvPrimClass (boolean))
717 values[i].z = (jboolean) va_arg (vargs, int);
718 else if (arg_elts[i] == JvPrimClass (char))
719 values[i].c = (jchar) va_arg (vargs, int);
723 values[i].l = unwrap (va_arg (vargs, jobject));
728 // This can call any sort of method: virtual, "nonvirtual", static, or
730 template<typename T, invocation_type style>
732 (JNICALL _Jv_JNI_CallAnyMethodV) (JNIEnv *env, jobject obj, jclass klass,
733 jmethodID id, va_list vargs)
736 klass = unwrap (klass);
739 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
741 jclass decl_class = klass ? klass : obj->getClass ();
742 JvAssert (decl_class != NULL);
745 JArray<jclass> *arg_types;
749 _Jv_GetTypesFromSignature (id, decl_class,
750 &arg_types, &return_type);
752 jvalue args[arg_types->length];
753 array_from_valist (args, arg_types, vargs);
755 // For constructors we need to pass the Class we are instantiating.
756 if (style == constructor)
760 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
761 style == constructor,
762 arg_types, args, &result);
767 // We cheat a little here. FIXME.
768 return wrap_value (env, * (T *) &result);
775 return wrap_value (env, (T) 0);
778 template<typename T, invocation_type style>
780 (JNICALL _Jv_JNI_CallAnyMethod) (JNIEnv *env, jobject obj, jclass klass,
781 jmethodID method, ...)
786 va_start (args, method);
787 result = _Jv_JNI_CallAnyMethodV<T, style> (env, obj, klass, method, args);
793 template<typename T, invocation_type style>
795 (JNICALL _Jv_JNI_CallAnyMethodA) (JNIEnv *env, jobject obj, jclass klass,
796 jmethodID id, jvalue *args)
799 klass = unwrap (klass);
802 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
804 jclass decl_class = klass ? klass : obj->getClass ();
805 JvAssert (decl_class != NULL);
808 JArray<jclass> *arg_types;
811 _Jv_GetTypesFromSignature (id, decl_class,
812 &arg_types, &return_type);
814 // For constructors we need to pass the Class we are instantiating.
815 if (style == constructor)
818 // Unwrap arguments as required. Eww.
819 jclass *type_elts = elements (arg_types);
820 jvalue arg_copy[arg_types->length];
821 for (int i = 0; i < arg_types->length; ++i)
823 if (type_elts[i]->isPrimitive ())
824 arg_copy[i] = args[i];
826 arg_copy[i].l = unwrap (args[i].l);
830 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
831 style == constructor,
832 arg_types, arg_copy, &result);
837 // We cheat a little here. FIXME.
838 return wrap_value (env, * (T *) &result);
845 return wrap_value (env, (T) 0);
848 template<invocation_type style>
850 (JNICALL _Jv_JNI_CallAnyVoidMethodV) (JNIEnv *env, jobject obj, jclass klass,
851 jmethodID id, va_list vargs)
854 klass = unwrap (klass);
857 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
859 jclass decl_class = klass ? klass : obj->getClass ();
860 JvAssert (decl_class != NULL);
863 JArray<jclass> *arg_types;
866 _Jv_GetTypesFromSignature (id, decl_class,
867 &arg_types, &return_type);
869 jvalue args[arg_types->length];
870 array_from_valist (args, arg_types, vargs);
872 // For constructors we need to pass the Class we are instantiating.
873 if (style == constructor)
876 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
877 style == constructor,
878 arg_types, args, NULL);
889 template<invocation_type style>
891 (JNICALL _Jv_JNI_CallAnyVoidMethod) (JNIEnv *env, jobject obj, jclass klass,
892 jmethodID method, ...)
896 va_start (args, method);
897 _Jv_JNI_CallAnyVoidMethodV<style> (env, obj, klass, method, args);
901 template<invocation_type style>
903 (JNICALL _Jv_JNI_CallAnyVoidMethodA) (JNIEnv *env, jobject obj, jclass klass,
904 jmethodID id, jvalue *args)
907 id = _Jv_LookupDeclaredMethod (obj->getClass (), id->name, id->signature);
909 jclass decl_class = klass ? klass : obj->getClass ();
910 JvAssert (decl_class != NULL);
913 JArray<jclass> *arg_types;
916 _Jv_GetTypesFromSignature (id, decl_class,
917 &arg_types, &return_type);
919 // Unwrap arguments as required. Eww.
920 jclass *type_elts = elements (arg_types);
921 jvalue arg_copy[arg_types->length];
922 for (int i = 0; i < arg_types->length; ++i)
924 if (type_elts[i]->isPrimitive ())
925 arg_copy[i] = args[i];
927 arg_copy[i].l = unwrap (args[i].l);
930 jthrowable ex = _Jv_CallAnyMethodA (obj, return_type, id,
931 style == constructor,
932 arg_types, args, NULL);
943 // Functions with this signature are used to implement functions in
944 // the CallMethod family.
947 (JNICALL _Jv_JNI_CallMethodV) (JNIEnv *env, jobject obj,
948 jmethodID id, va_list args)
950 return _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
953 // Functions with this signature are used to implement functions in
954 // the CallMethod family.
957 (JNICALL _Jv_JNI_CallMethod) (JNIEnv *env, jobject obj, jmethodID id, ...)
963 result = _Jv_JNI_CallAnyMethodV<T, normal> (env, obj, NULL, id, args);
969 // Functions with this signature are used to implement functions in
970 // the CallMethod family.
973 (JNICALL _Jv_JNI_CallMethodA) (JNIEnv *env, jobject obj,
974 jmethodID id, jvalue *args)
976 return _Jv_JNI_CallAnyMethodA<T, normal> (env, obj, NULL, id, args);
980 (JNICALL _Jv_JNI_CallVoidMethodV) (JNIEnv *env, jobject obj,
981 jmethodID id, va_list args)
983 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
987 (JNICALL _Jv_JNI_CallVoidMethod) (JNIEnv *env, jobject obj, jmethodID id, ...)
992 _Jv_JNI_CallAnyVoidMethodV<normal> (env, obj, NULL, id, args);
997 (JNICALL _Jv_JNI_CallVoidMethodA) (JNIEnv *env, jobject obj,
998 jmethodID id, jvalue *args)
1000 _Jv_JNI_CallAnyVoidMethodA<normal> (env, obj, NULL, id, args);
1003 // Functions with this signature are used to implement functions in
1004 // the CallStaticMethod family.
1005 template<typename T>
1007 (JNICALL _Jv_JNI_CallStaticMethodV) (JNIEnv *env, jclass klass,
1008 jmethodID id, va_list args)
1010 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
1011 JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
1013 return _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass, id, args);
1016 // Functions with this signature are used to implement functions in
1017 // the CallStaticMethod family.
1018 template<typename T>
1020 (JNICALL _Jv_JNI_CallStaticMethod) (JNIEnv *env, jclass klass,
1026 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
1027 JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
1029 va_start (args, id);
1030 result = _Jv_JNI_CallAnyMethodV<T, static_type> (env, NULL, klass,
1037 // Functions with this signature are used to implement functions in
1038 // the CallStaticMethod family.
1039 template<typename T>
1041 (JNICALL _Jv_JNI_CallStaticMethodA) (JNIEnv *env, jclass klass, jmethodID id,
1044 JvAssert (((id->accflags) & java::lang::reflect::Modifier::STATIC));
1045 JvAssert (java::lang::Class::class$.isInstance (unwrap (klass)));
1047 return _Jv_JNI_CallAnyMethodA<T, static_type> (env, NULL, klass, id, args);
1051 (JNICALL _Jv_JNI_CallStaticVoidMethodV) (JNIEnv *env, jclass klass,
1052 jmethodID id, va_list args)
1054 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
1058 (JNICALL _Jv_JNI_CallStaticVoidMethod) (JNIEnv *env, jclass klass,
1063 va_start (args, id);
1064 _Jv_JNI_CallAnyVoidMethodV<static_type> (env, NULL, klass, id, args);
1069 (JNICALL _Jv_JNI_CallStaticVoidMethodA) (JNIEnv *env, jclass klass,
1070 jmethodID id, jvalue *args)
1072 _Jv_JNI_CallAnyVoidMethodA<static_type> (env, NULL, klass, id, args);
1076 (JNICALL _Jv_JNI_NewObjectV) (JNIEnv *env, jclass klass,
1077 jmethodID id, va_list args)
1079 JvAssert (klass && ! klass->isArray ());
1080 JvAssert (! strcmp (id->name->data, "<init>")
1081 && id->signature->length > 2
1082 && id->signature->data[0] == '('
1083 && ! strcmp (&id->signature->data[id->signature->length - 2],
1086 return _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1091 (JNICALL _Jv_JNI_NewObject) (JNIEnv *env, jclass klass, jmethodID id, ...)
1093 JvAssert (klass && ! klass->isArray ());
1094 JvAssert (! strcmp (id->name->data, "<init>")
1095 && id->signature->length > 2
1096 && id->signature->data[0] == '('
1097 && ! strcmp (&id->signature->data[id->signature->length - 2],
1103 va_start (args, id);
1104 result = _Jv_JNI_CallAnyMethodV<jobject, constructor> (env, NULL, klass,
1112 (JNICALL _Jv_JNI_NewObjectA) (JNIEnv *env, jclass klass, jmethodID id,
1115 JvAssert (klass && ! klass->isArray ());
1116 JvAssert (! strcmp (id->name->data, "<init>")
1117 && id->signature->length > 2
1118 && id->signature->data[0] == '('
1119 && ! strcmp (&id->signature->data[id->signature->length - 2],
1122 return _Jv_JNI_CallAnyMethodA<jobject, constructor> (env, NULL, klass,
1128 template<typename T>
1130 (JNICALL _Jv_JNI_GetField) (JNIEnv *env, jobject obj, jfieldID field)
1134 T *ptr = (T *) ((char *) obj + field->getOffset ());
1135 return wrap_value (env, *ptr);
1138 template<typename T>
1140 (JNICALL _Jv_JNI_SetField) (JNIEnv *, jobject obj, jfieldID field, T value)
1143 value = unwrap (value);
1146 T *ptr = (T *) ((char *) obj + field->getOffset ());
1150 template<jboolean is_static>
1152 (JNICALL _Jv_JNI_GetAnyFieldID) (JNIEnv *env, jclass clazz,
1153 const char *name, const char *sig)
1157 clazz = unwrap (clazz);
1159 _Jv_InitClass (clazz);
1161 _Jv_Utf8Const *a_name = _Jv_makeUtf8Const ((char *) name, -1);
1163 // FIXME: assume that SIG isn't too long.
1164 int len = strlen (sig);
1166 for (int i = 0; i <= len; ++i)
1167 s[i] = (sig[i] == '/') ? '.' : sig[i];
1168 jclass field_class = _Jv_FindClassFromSignature ((char *) s, NULL);
1170 // FIXME: what if field_class == NULL?
1172 java::lang::ClassLoader *loader = clazz->getClassLoader ();
1173 while (clazz != NULL)
1175 // We acquire the class lock so that fields aren't resolved
1176 // while we are running.
1177 JvSynchronize sync (clazz);
1179 jint count = (is_static
1180 ? JvNumStaticFields (clazz)
1181 : JvNumInstanceFields (clazz));
1182 jfieldID field = (is_static
1183 ? JvGetFirstStaticField (clazz)
1184 : JvGetFirstInstanceField (clazz));
1185 for (jint i = 0; i < count; ++i)
1187 _Jv_Utf8Const *f_name = field->getNameUtf8Const(clazz);
1189 // The field might be resolved or it might not be. It
1190 // is much simpler to always resolve it.
1191 _Jv_ResolveField (field, loader);
1192 if (_Jv_equalUtf8Consts (f_name, a_name)
1193 && field->getClass() == field_class)
1196 field = field->getNextField ();
1199 clazz = clazz->getSuperclass ();
1202 env->ex = new java::lang::NoSuchFieldError ();
1204 catch (jthrowable t)
1211 template<typename T>
1213 (JNICALL _Jv_JNI_GetStaticField) (JNIEnv *env, jclass, jfieldID field)
1215 T *ptr = (T *) field->u.addr;
1216 return wrap_value (env, *ptr);
1219 template<typename T>
1221 (JNICALL _Jv_JNI_SetStaticField) (JNIEnv *, jclass, jfieldID field, T value)
1223 value = unwrap (value);
1224 T *ptr = (T *) field->u.addr;
1229 (JNICALL _Jv_JNI_NewString) (JNIEnv *env, const jchar *unichars, jsize len)
1233 jstring r = _Jv_NewString (unichars, len);
1234 return (jstring) wrap_value (env, r);
1236 catch (jthrowable t)
1244 (JNICALL _Jv_JNI_GetStringLength) (JNIEnv *, jstring string)
1246 return unwrap (string)->length();
1249 static const jchar *
1250 (JNICALL _Jv_JNI_GetStringChars) (JNIEnv *, jstring string, jboolean *isCopy)
1252 string = unwrap (string);
1253 jchar *result = _Jv_GetStringChars (string);
1254 mark_for_gc (string, global_ref_table);
1257 return (const jchar *) result;
1261 (JNICALL _Jv_JNI_ReleaseStringChars) (JNIEnv *, jstring string, const jchar *)
1263 unmark_for_gc (unwrap (string), global_ref_table);
1267 (JNICALL _Jv_JNI_NewStringUTF) (JNIEnv *env, const char *bytes)
1271 jstring result = JvNewStringUTF (bytes);
1272 return (jstring) wrap_value (env, result);
1274 catch (jthrowable t)
1282 (JNICALL _Jv_JNI_GetStringUTFLength) (JNIEnv *, jstring string)
1284 return JvGetStringUTFLength (unwrap (string));
1288 (JNICALL _Jv_JNI_GetStringUTFChars) (JNIEnv *env, jstring string,
1291 string = unwrap (string);
1292 jsize len = JvGetStringUTFLength (string);
1295 char *r = (char *) _Jv_Malloc (len + 1);
1296 JvGetStringUTFRegion (string, 0, len, r);
1302 return (const char *) r;
1304 catch (jthrowable t)
1312 (JNICALL _Jv_JNI_ReleaseStringUTFChars) (JNIEnv *, jstring, const char *utf)
1314 _Jv_Free ((void *) utf);
1318 (JNICALL _Jv_JNI_GetStringRegion) (JNIEnv *env, jstring string, jsize start,
1319 jsize len, jchar *buf)
1321 string = unwrap (string);
1322 jchar *result = _Jv_GetStringChars (string);
1323 if (start < 0 || start > string->length ()
1324 || len < 0 || start + len > string->length ())
1328 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1330 catch (jthrowable t)
1336 memcpy (buf, &result[start], len * sizeof (jchar));
1340 (JNICALL _Jv_JNI_GetStringUTFRegion) (JNIEnv *env, jstring str, jsize start,
1341 jsize len, char *buf)
1345 if (start < 0 || start > str->length ()
1346 || len < 0 || start + len > str->length ())
1350 env->ex = new java::lang::StringIndexOutOfBoundsException ();
1352 catch (jthrowable t)
1358 _Jv_GetStringUTFRegion (str, start, len, buf);
1361 static const jchar *
1362 (JNICALL _Jv_JNI_GetStringCritical) (JNIEnv *, jstring str, jboolean *isCopy)
1364 jchar *result = _Jv_GetStringChars (unwrap (str));
1371 (JNICALL _Jv_JNI_ReleaseStringCritical) (JNIEnv *, jstring, const jchar *)
1377 (JNICALL _Jv_JNI_GetArrayLength) (JNIEnv *, jarray array)
1379 return unwrap (array)->length;
1383 (JNICALL _Jv_JNI_NewObjectArray) (JNIEnv *env, jsize length,
1384 jclass elementClass, jobject init)
1388 elementClass = unwrap (elementClass);
1389 init = unwrap (init);
1391 _Jv_CheckCast (elementClass, init);
1392 jarray result = JvNewObjectArray (length, elementClass, init);
1393 return (jarray) wrap_value (env, result);
1395 catch (jthrowable t)
1403 (JNICALL _Jv_JNI_GetObjectArrayElement) (JNIEnv *env, jobjectArray array,
1406 if ((unsigned) index >= (unsigned) array->length)
1407 _Jv_ThrowBadArrayIndex (index);
1408 jobject *elts = elements (unwrap (array));
1409 return wrap_value (env, elts[index]);
1413 (JNICALL _Jv_JNI_SetObjectArrayElement) (JNIEnv *env, jobjectArray array,
1414 jsize index, jobject value)
1418 array = unwrap (array);
1419 value = unwrap (value);
1421 _Jv_CheckArrayStore (array, value);
1422 if ((unsigned) index >= (unsigned) array->length)
1423 _Jv_ThrowBadArrayIndex (index);
1424 jobject *elts = elements (array);
1425 elts[index] = value;
1427 catch (jthrowable t)
1433 template<typename T, jclass K>
1435 (JNICALL _Jv_JNI_NewPrimitiveArray) (JNIEnv *env, jsize length)
1439 return (JArray<T> *) wrap_value (env, _Jv_NewPrimArray (K, length));
1441 catch (jthrowable t)
1448 template<typename T>
1450 (JNICALL _Jv_JNI_GetPrimitiveArrayElements) (JNIEnv *, JArray<T> *array,
1453 array = unwrap (array);
1454 T *elts = elements (array);
1457 // We elect never to copy.
1460 mark_for_gc (array, global_ref_table);
1464 template<typename T>
1466 (JNICALL _Jv_JNI_ReleasePrimitiveArrayElements) (JNIEnv *, JArray<T> *array,
1467 T *, jint /* mode */)
1469 array = unwrap (array);
1470 // Note that we ignore MODE. We can do this because we never copy
1471 // the array elements. My reading of the JNI documentation is that
1472 // this is an option for the implementor.
1473 unmark_for_gc (array, global_ref_table);
1476 template<typename T>
1478 (JNICALL _Jv_JNI_GetPrimitiveArrayRegion) (JNIEnv *env, JArray<T> *array,
1479 jsize start, jsize len,
1482 array = unwrap (array);
1484 // The cast to unsigned lets us save a comparison.
1485 if (start < 0 || len < 0
1486 || (unsigned long) (start + len) > (unsigned long) array->length)
1491 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1493 catch (jthrowable t)
1495 // Could have thown out of memory error.
1501 T *elts = elements (array) + start;
1502 memcpy (buf, elts, len * sizeof (T));
1506 template<typename T>
1508 (JNICALL _Jv_JNI_SetPrimitiveArrayRegion) (JNIEnv *env, JArray<T> *array,
1509 jsize start, jsize len, T *buf)
1511 array = unwrap (array);
1513 // The cast to unsigned lets us save a comparison.
1514 if (start < 0 || len < 0
1515 || (unsigned long) (start + len) > (unsigned long) array->length)
1520 env->ex = new java::lang::ArrayIndexOutOfBoundsException ();
1522 catch (jthrowable t)
1529 T *elts = elements (array) + start;
1530 memcpy (elts, buf, len * sizeof (T));
1535 (JNICALL _Jv_JNI_GetPrimitiveArrayCritical) (JNIEnv *, jarray array,
1538 array = unwrap (array);
1539 // FIXME: does this work?
1540 jclass klass = array->getClass()->getComponentType();
1541 JvAssert (klass->isPrimitive ());
1542 char *r = _Jv_GetArrayElementFromElementType (array, klass);
1549 (JNICALL _Jv_JNI_ReleasePrimitiveArrayCritical) (JNIEnv *, jarray, void *, jint)
1555 (JNICALL _Jv_JNI_MonitorEnter) (JNIEnv *env, jobject obj)
1559 _Jv_MonitorEnter (unwrap (obj));
1562 catch (jthrowable t)
1570 (JNICALL _Jv_JNI_MonitorExit) (JNIEnv *env, jobject obj)
1574 _Jv_MonitorExit (unwrap (obj));
1577 catch (jthrowable t)
1586 (JNICALL _Jv_JNI_ToReflectedField) (JNIEnv *env, jclass cls, jfieldID fieldID,
1592 java::lang::reflect::Field *field = new java::lang::reflect::Field();
1593 field->declaringClass = cls;
1594 field->offset = (char*) fieldID - (char *) cls->fields;
1595 field->name = _Jv_NewStringUtf8Const (fieldID->getNameUtf8Const (cls));
1596 return wrap_value (env, field);
1598 catch (jthrowable t)
1607 (JNICALL _Jv_JNI_FromReflectedField) (JNIEnv *, jobject f)
1609 using namespace java::lang::reflect;
1612 Field *field = reinterpret_cast<Field *> (f);
1613 return _Jv_FromReflectedField (field);
1617 (JNICALL _Jv_JNI_ToReflectedMethod) (JNIEnv *env, jclass klass, jmethodID id,
1620 using namespace java::lang::reflect;
1622 jobject result = NULL;
1623 klass = unwrap (klass);
1627 if (_Jv_equalUtf8Consts (id->name, init_name))
1630 Constructor *cons = new Constructor ();
1631 cons->offset = (char *) id - (char *) &klass->methods;
1632 cons->declaringClass = klass;
1637 Method *meth = new Method ();
1638 meth->offset = (char *) id - (char *) &klass->methods;
1639 meth->declaringClass = klass;
1643 catch (jthrowable t)
1648 return wrap_value (env, result);
1652 (JNICALL _Jv_JNI_FromReflectedMethod) (JNIEnv *, jobject method)
1654 using namespace java::lang::reflect;
1655 method = unwrap (method);
1656 if (Method::class$.isInstance (method))
1657 return _Jv_FromReflectedMethod (reinterpret_cast<Method *> (method));
1659 _Jv_FromReflectedConstructor (reinterpret_cast<Constructor *> (method));
1664 (JNICALL _Jv_JNI_NewWeakGlobalRef) (JNIEnv *env, jobject obj)
1666 using namespace gnu::gcj::runtime;
1667 JNIWeakRef *ref = NULL;
1671 // This seems weird but I think it is correct.
1673 ref = new JNIWeakRef (obj);
1674 mark_for_gc (ref, global_ref_table);
1676 catch (jthrowable t)
1681 return reinterpret_cast<jweak> (ref);
1685 (JNICALL _Jv_JNI_DeleteWeakGlobalRef) (JNIEnv *, jweak obj)
1687 using namespace gnu::gcj::runtime;
1688 JNIWeakRef *ref = reinterpret_cast<JNIWeakRef *> (obj);
1689 unmark_for_gc (ref, global_ref_table);
1695 // Direct byte buffers.
1698 (JNICALL _Jv_JNI_NewDirectByteBuffer) (JNIEnv *, void *, jlong)
1700 // For now we don't support this.
1705 (JNICALL _Jv_JNI_GetDirectBufferAddress) (JNIEnv *, jobject)
1707 // For now we don't support this.
1712 (JNICALL _Jv_JNI_GetDirectBufferCapacity) (JNIEnv *, jobject)
1714 // For now we don't support this.
1720 // Hash table of native methods.
1721 static JNINativeMethod *nathash;
1722 // Number of slots used.
1723 static int nathash_count = 0;
1724 // Number of slots available. Must be power of 2.
1725 static int nathash_size = 0;
1727 #define DELETED_ENTRY ((char *) (~0))
1729 // Compute a hash value for a native method descriptor.
1731 hash (const JNINativeMethod *method)
1738 hash = (31 * hash) + *ptr++;
1740 ptr = method->signature;
1742 hash = (31 * hash) + *ptr++;
1747 // Find the slot where a native method goes.
1748 static JNINativeMethod *
1749 nathash_find_slot (const JNINativeMethod *method)
1751 jint h = hash (method);
1752 int step = (h ^ (h >> 16)) | 1;
1753 int w = h & (nathash_size - 1);
1758 JNINativeMethod *slotp = &nathash[w];
1759 if (slotp->name == NULL)
1762 return &nathash[del];
1766 else if (slotp->name == DELETED_ENTRY)
1768 else if (! strcmp (slotp->name, method->name)
1769 && ! strcmp (slotp->signature, method->signature))
1771 w = (w + step) & (nathash_size - 1);
1775 // Find a method. Return NULL if it isn't in the hash table.
1777 nathash_find (JNINativeMethod *method)
1779 if (nathash == NULL)
1781 JNINativeMethod *slot = nathash_find_slot (method);
1782 if (slot->name == NULL || slot->name == DELETED_ENTRY)
1790 if (nathash == NULL)
1792 nathash_size = 1024;
1794 (JNINativeMethod *) _Jv_AllocBytes (nathash_size
1795 * sizeof (JNINativeMethod));
1796 memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
1800 int savesize = nathash_size;
1801 JNINativeMethod *savehash = nathash;
1804 (JNINativeMethod *) _Jv_AllocBytes (nathash_size
1805 * sizeof (JNINativeMethod));
1806 memset (nathash, 0, nathash_size * sizeof (JNINativeMethod));
1808 for (int i = 0; i < savesize; ++i)
1810 if (savehash[i].name != NULL && savehash[i].name != DELETED_ENTRY)
1812 JNINativeMethod *slot = nathash_find_slot (&savehash[i]);
1813 *slot = savehash[i];
1820 nathash_add (const JNINativeMethod *method)
1822 if (3 * nathash_count >= 2 * nathash_size)
1824 JNINativeMethod *slot = nathash_find_slot (method);
1825 // If the slot has a real entry in it, then there is no work to do.
1826 if (slot->name != NULL && slot->name != DELETED_ENTRY)
1829 slot->name = strdup (method->name);
1830 slot->signature = strdup (method->signature);
1831 slot->fnPtr = method->fnPtr;
1835 (JNICALL _Jv_JNI_RegisterNatives) (JNIEnv *env, jclass klass,
1836 const JNINativeMethod *methods,
1839 // Synchronize while we do the work. This must match
1840 // synchronization in some other functions that manipulate or use
1841 // the nathash table.
1842 JvSynchronize sync (global_ref_table);
1844 // Look at each descriptor given us, and find the corresponding
1845 // method in the class.
1846 for (int j = 0; j < nMethods; ++j)
1850 _Jv_Method *imeths = JvGetFirstMethod (klass);
1851 for (int i = 0; i < JvNumMethods (klass); ++i)
1853 _Jv_Method *self = &imeths[i];
1855 if (! strcmp (self->name->data, methods[j].name)
1856 && ! strcmp (self->signature->data, methods[j].signature))
1858 if (! (self->accflags
1859 & java::lang::reflect::Modifier::NATIVE))
1862 // Found a match that is native.
1864 nathash_add (&methods[j]);
1872 jstring m = JvNewStringUTF (methods[j].name);
1875 env->ex =new java::lang::NoSuchMethodError (m);
1877 catch (jthrowable t)
1889 (JNICALL _Jv_JNI_UnregisterNatives) (JNIEnv *, jclass)
1891 // FIXME -- we could implement this.
1897 // Add a character to the buffer, encoding properly.
1899 add_char (char *buf, jchar c, int *here)
1903 buf[(*here)++] = '_';
1904 buf[(*here)++] = '1';
1908 buf[(*here)++] = '_';
1909 buf[(*here)++] = '2';
1913 buf[(*here)++] = '_';
1914 buf[(*here)++] = '3';
1917 // Also check for `.' here because we might be passed an internal
1918 // qualified class name like `foo.bar'.
1919 else if (c == '/' || c == '.')
1920 buf[(*here)++] = '_';
1921 else if ((c >= '0' && c <= '9')
1922 || (c >= 'a' && c <= 'z')
1923 || (c >= 'A' && c <= 'Z'))
1924 buf[(*here)++] = (char) c;
1927 // "Unicode" character.
1928 buf[(*here)++] = '_';
1929 buf[(*here)++] = '0';
1930 for (int i = 0; i < 4; ++i)
1933 buf[(*here) + 3 - i] = (val > 10) ? ('a' + val - 10) : ('0' + val);
1940 // Compute a mangled name for a native function. This computes the
1941 // long name, and also returns an index which indicates where a NUL
1942 // can be placed to create the short name. This function assumes that
1943 // the buffer is large enough for its results.
1945 mangled_name (jclass klass, _Jv_Utf8Const *func_name,
1946 _Jv_Utf8Const *signature, char *buf, int *long_start)
1948 strcpy (buf, "Java_");
1951 // Add fully qualified class name.
1952 jchar *chars = _Jv_GetStringChars (klass->getName ());
1953 jint len = klass->getName ()->length ();
1954 for (int i = 0; i < len; ++i)
1955 add_char (buf, chars[i], &here);
1957 // Don't use add_char because we need a literal `_'.
1960 const unsigned char *fn = (const unsigned char *) func_name->data;
1961 const unsigned char *limit = fn + func_name->length;
1962 for (int i = 0; ; ++i)
1964 int ch = UTF8_GET (fn, limit);
1967 add_char (buf, ch, &here);
1970 // This is where the long signature begins.
1975 const unsigned char *sig = (const unsigned char *) signature->data;
1976 limit = sig + signature->length;
1977 JvAssert (sig[0] == '(');
1981 int ch = UTF8_GET (sig, limit);
1982 if (ch == ')' || ch < 0)
1984 add_char (buf, ch, &here);
1990 // Return the current thread's JNIEnv; if one does not exist, create
1991 // it. Also create a new system frame for use. This is `extern "C"'
1992 // because the compiler calls it.
1994 _Jv_GetJNIEnvNewFrame (jclass klass)
1996 JNIEnv *env = _Jv_GetCurrentJNIEnv ();
1999 env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
2000 env->p = &_Jv_JNIFunctions;
2003 // We set env->ex below.
2005 _Jv_SetCurrentJNIEnv (env);
2008 _Jv_JNI_LocalFrame *frame
2009 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
2011 * sizeof (jobject)));
2013 frame->marker = MARK_SYSTEM;
2014 frame->size = FRAME_SIZE;
2015 frame->next = env->locals;
2017 for (int i = 0; i < frame->size; ++i)
2018 frame->vec[i] = NULL;
2020 env->locals = frame;
2026 // Return the function which implements a particular JNI method. If
2027 // we can't find the function, we throw the appropriate exception.
2028 // This is `extern "C"' because the compiler uses it.
2030 _Jv_LookupJNIMethod (jclass klass, _Jv_Utf8Const *name,
2031 _Jv_Utf8Const *signature)
2033 char buf[10 + 6 * (name->length + signature->length)];
2037 // Synchronize on something convenient. Right now we use the hash.
2038 JvSynchronize sync (global_ref_table);
2040 // First see if we have an override in the hash table.
2041 strncpy (buf, name->data, name->length);
2042 buf[name->length] = '\0';
2043 strncpy (buf + name->length + 1, signature->data, signature->length);
2044 buf[name->length + signature->length + 1] = '\0';
2045 JNINativeMethod meth;
2047 meth.signature = buf + name->length + 1;
2048 function = nathash_find (&meth);
2049 if (function != NULL)
2052 // If there was no override, then look in the symbol table.
2053 mangled_name (klass, name, signature, buf, &long_start);
2054 char c = buf[long_start];
2055 buf[long_start] = '\0';
2056 function = _Jv_FindSymbolInExecutable (buf);
2057 if (function == NULL)
2059 buf[long_start] = c;
2060 function = _Jv_FindSymbolInExecutable (buf);
2061 if (function == NULL)
2063 jstring str = JvNewStringUTF (name->data);
2064 throw new java::lang::UnsatisfiedLinkError (str);
2073 // This function is the stub which is used to turn an ordinary (CNI)
2074 // method call into a JNI call.
2076 _Jv_JNIMethod::call (ffi_cif *, void *ret, ffi_raw *args, void *__this)
2078 _Jv_JNIMethod* _this = (_Jv_JNIMethod *) __this;
2080 JNIEnv *env = _Jv_GetJNIEnvNewFrame (_this->defining_class);
2082 // FIXME: we should mark every reference parameter as a local. For
2083 // now we assume a conservative GC, and we assume that the
2084 // references are on the stack somewhere.
2086 // We cache the value that we find, of course, but if we don't find
2087 // a value we don't cache that fact -- we might subsequently load a
2088 // library which finds the function in question.
2090 // Synchronize on a convenient object to ensure sanity in case two
2091 // threads reach this point for the same function at the same
2093 JvSynchronize sync (global_ref_table);
2094 if (_this->function == NULL)
2095 _this->function = _Jv_LookupJNIMethod (_this->defining_class,
2097 _this->self->signature);
2100 JvAssert (_this->args_raw_size % sizeof (ffi_raw) == 0);
2101 ffi_raw real_args[2 + _this->args_raw_size / sizeof (ffi_raw)];
2104 // First argument is always the environment pointer.
2105 real_args[offset++].ptr = env;
2107 // For a static method, we pass in the Class. For non-static
2108 // methods, the `this' argument is already handled.
2109 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
2110 real_args[offset++].ptr = _this->defining_class;
2112 // In libgcj, the callee synchronizes.
2113 jobject sync = NULL;
2114 if ((_this->self->accflags & java::lang::reflect::Modifier::SYNCHRONIZED))
2116 if ((_this->self->accflags & java::lang::reflect::Modifier::STATIC))
2117 sync = _this->defining_class;
2119 sync = (jobject) args[0].ptr;
2120 _Jv_MonitorEnter (sync);
2123 // Copy over passed-in arguments.
2124 memcpy (&real_args[offset], args, _this->args_raw_size);
2126 // The actual call to the JNI function.
2127 ffi_raw_call (&_this->jni_cif, (void (*)()) _this->function,
2131 _Jv_MonitorExit (sync);
2133 _Jv_JNI_PopSystemFrame (env);
2136 #endif /* INTERPRETER */
2144 // An internal helper function.
2146 _Jv_JNI_AttachCurrentThread (JavaVM *, jstring name, void **penv,
2147 void *args, jboolean is_daemon)
2149 JavaVMAttachArgs *attach = reinterpret_cast<JavaVMAttachArgs *> (args);
2150 java::lang::ThreadGroup *group = NULL;
2154 // FIXME: do we really want to support 1.1?
2155 if (attach->version != JNI_VERSION_1_4
2156 && attach->version != JNI_VERSION_1_2
2157 && attach->version != JNI_VERSION_1_1)
2158 return JNI_EVERSION;
2160 JvAssert (java::lang::ThreadGroup::class$.isInstance (attach->group));
2161 group = reinterpret_cast<java::lang::ThreadGroup *> (attach->group);
2164 // Attaching an already-attached thread is a no-op.
2165 if (_Jv_GetCurrentJNIEnv () != NULL)
2168 JNIEnv *env = (JNIEnv *) _Jv_MallocUnchecked (sizeof (JNIEnv));
2171 env->p = &_Jv_JNIFunctions;
2175 = (_Jv_JNI_LocalFrame *) _Jv_MallocUnchecked (sizeof (_Jv_JNI_LocalFrame)
2177 * sizeof (jobject)));
2178 if (env->locals == NULL)
2184 env->locals->marker = MARK_SYSTEM;
2185 env->locals->size = FRAME_SIZE;
2186 env->locals->next = NULL;
2188 for (int i = 0; i < env->locals->size; ++i)
2189 env->locals->vec[i] = NULL;
2191 *penv = reinterpret_cast<void *> (env);
2193 // This thread might already be a Java thread -- this function might
2194 // have been called simply to set the new JNIEnv.
2195 if (_Jv_ThreadCurrent () == NULL)
2200 _Jv_AttachCurrentThreadAsDaemon (name, group);
2202 _Jv_AttachCurrentThread (name, group);
2204 catch (jthrowable t)
2209 _Jv_SetCurrentJNIEnv (env);
2214 // This is the one actually used by JNI.
2216 (JNICALL _Jv_JNI_AttachCurrentThread) (JavaVM *vm, void **penv, void *args)
2218 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, false);
2222 (JNICALL _Jv_JNI_AttachCurrentThreadAsDaemon) (JavaVM *vm, void **penv,
2225 return _Jv_JNI_AttachCurrentThread (vm, NULL, penv, args, true);
2229 (JNICALL _Jv_JNI_DestroyJavaVM) (JavaVM *vm)
2231 JvAssert (the_vm && vm == the_vm);
2234 if (_Jv_ThreadCurrent () != NULL)
2240 main_name = JvNewStringLatin1 ("main");
2242 catch (jthrowable t)
2247 jint r = _Jv_JNI_AttachCurrentThread (vm, main_name,
2248 reinterpret_cast<void **> (&env),
2254 env = _Jv_GetCurrentJNIEnv ();
2258 // Docs say that this always returns an error code.
2263 (JNICALL _Jv_JNI_DetachCurrentThread) (JavaVM *)
2265 jint code = _Jv_DetachCurrentThread ();
2266 return code ? JNI_EDETACHED : 0;
2270 (JNICALL _Jv_JNI_GetEnv) (JavaVM *, void **penv, jint version)
2272 if (_Jv_ThreadCurrent () == NULL)
2275 return JNI_EDETACHED;
2279 // Handle JVMPI requests.
2280 if (version == JVMPI_VERSION_1)
2282 *penv = (void *) &_Jv_JVMPI_Interface;
2287 // FIXME: do we really want to support 1.1?
2288 if (version != JNI_VERSION_1_4 && version != JNI_VERSION_1_2
2289 && version != JNI_VERSION_1_1)
2292 return JNI_EVERSION;
2295 *penv = (void *) _Jv_GetCurrentJNIEnv ();
2299 JNIEXPORT jint JNICALL
2300 JNI_GetDefaultJavaVMInitArgs (void *args)
2302 jint version = * (jint *) args;
2303 // Here we only support 1.2 and 1.4.
2304 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
2305 return JNI_EVERSION;
2307 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
2308 ia->version = JNI_VERSION_1_4;
2311 ia->ignoreUnrecognized = true;
2316 JNIEXPORT jint JNICALL
2317 JNI_CreateJavaVM (JavaVM **vm, void **penv, void *args)
2319 JvAssert (! the_vm);
2321 _Jv_CreateJavaVM (NULL);
2323 // FIXME: synchronize
2324 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2327 nvm->functions = &_Jv_JNI_InvokeFunctions;
2329 // Parse the arguments.
2332 jint version = * (jint *) args;
2333 // We only support 1.2 and 1.4.
2334 if (version != JNI_VERSION_1_2 && version != JNI_VERSION_1_4)
2335 return JNI_EVERSION;
2336 JavaVMInitArgs *ia = reinterpret_cast<JavaVMInitArgs *> (args);
2337 for (int i = 0; i < ia->nOptions; ++i)
2339 if (! strcmp (ia->options[i].optionString, "vfprintf")
2340 || ! strcmp (ia->options[i].optionString, "exit")
2341 || ! strcmp (ia->options[i].optionString, "abort"))
2343 // We are required to recognize these, but for now we
2344 // don't handle them in any way. FIXME.
2347 else if (! strncmp (ia->options[i].optionString,
2348 "-verbose", sizeof ("-verbose") - 1))
2350 // We don't do anything with this option either. We
2351 // might want to make sure the argument is valid, but we
2352 // don't really care all that much for now.
2355 else if (! strncmp (ia->options[i].optionString, "-D", 2))
2360 else if (ia->ignoreUnrecognized)
2362 if (ia->options[i].optionString[0] == '_'
2363 || ! strncmp (ia->options[i].optionString, "-X", 2))
2371 jint r =_Jv_JNI_AttachCurrentThread (nvm, penv, NULL);
2381 JNIEXPORT jint JNICALL
2382 JNI_GetCreatedJavaVMs (JavaVM **vm_buffer, jsize buf_len, jsize *n_vms)
2387 // We only support a single VM.
2390 vm_buffer[0] = the_vm;
2401 // FIXME: synchronize
2404 JavaVM *nvm = (JavaVM *) _Jv_MallocUnchecked (sizeof (JavaVM));
2406 nvm->functions = &_Jv_JNI_InvokeFunctions;
2410 // If this is a Java thread, we want to make sure it has an
2411 // associated JNIEnv.
2412 if (_Jv_ThreadCurrent () != NULL)
2415 _Jv_JNI_AttachCurrentThread (the_vm, &ignore, NULL);
2422 (JNICALL _Jv_JNI_GetJavaVM) (JNIEnv *, JavaVM **vm)
2424 *vm = _Jv_GetJavaVM ();
2425 return *vm == NULL ? JNI_ERR : JNI_OK;
2430 #define RESERVED NULL
2432 struct JNINativeInterface _Jv_JNIFunctions =
2438 _Jv_JNI_GetVersion, // GetVersion
2439 _Jv_JNI_DefineClass, // DefineClass
2440 _Jv_JNI_FindClass, // FindClass
2441 _Jv_JNI_FromReflectedMethod, // FromReflectedMethod
2442 _Jv_JNI_FromReflectedField, // FromReflectedField
2443 _Jv_JNI_ToReflectedMethod, // ToReflectedMethod
2444 _Jv_JNI_GetSuperclass, // GetSuperclass
2445 _Jv_JNI_IsAssignableFrom, // IsAssignableFrom
2446 _Jv_JNI_ToReflectedField, // ToReflectedField
2447 _Jv_JNI_Throw, // Throw
2448 _Jv_JNI_ThrowNew, // ThrowNew
2449 _Jv_JNI_ExceptionOccurred, // ExceptionOccurred
2450 _Jv_JNI_ExceptionDescribe, // ExceptionDescribe
2451 _Jv_JNI_ExceptionClear, // ExceptionClear
2452 _Jv_JNI_FatalError, // FatalError
2454 _Jv_JNI_PushLocalFrame, // PushLocalFrame
2455 _Jv_JNI_PopLocalFrame, // PopLocalFrame
2456 _Jv_JNI_NewGlobalRef, // NewGlobalRef
2457 _Jv_JNI_DeleteGlobalRef, // DeleteGlobalRef
2458 _Jv_JNI_DeleteLocalRef, // DeleteLocalRef
2460 _Jv_JNI_IsSameObject, // IsSameObject
2462 _Jv_JNI_NewLocalRef, // NewLocalRef
2463 _Jv_JNI_EnsureLocalCapacity, // EnsureLocalCapacity
2465 _Jv_JNI_AllocObject, // AllocObject
2466 _Jv_JNI_NewObject, // NewObject
2467 _Jv_JNI_NewObjectV, // NewObjectV
2468 _Jv_JNI_NewObjectA, // NewObjectA
2469 _Jv_JNI_GetObjectClass, // GetObjectClass
2470 _Jv_JNI_IsInstanceOf, // IsInstanceOf
2471 _Jv_JNI_GetAnyMethodID<false>, // GetMethodID
2473 _Jv_JNI_CallMethod<jobject>, // CallObjectMethod
2474 _Jv_JNI_CallMethodV<jobject>, // CallObjectMethodV
2475 _Jv_JNI_CallMethodA<jobject>, // CallObjectMethodA
2476 _Jv_JNI_CallMethod<jboolean>, // CallBooleanMethod
2477 _Jv_JNI_CallMethodV<jboolean>, // CallBooleanMethodV
2478 _Jv_JNI_CallMethodA<jboolean>, // CallBooleanMethodA
2479 _Jv_JNI_CallMethod<jbyte>, // CallByteMethod
2480 _Jv_JNI_CallMethodV<jbyte>, // CallByteMethodV
2481 _Jv_JNI_CallMethodA<jbyte>, // CallByteMethodA
2482 _Jv_JNI_CallMethod<jchar>, // CallCharMethod
2483 _Jv_JNI_CallMethodV<jchar>, // CallCharMethodV
2484 _Jv_JNI_CallMethodA<jchar>, // CallCharMethodA
2485 _Jv_JNI_CallMethod<jshort>, // CallShortMethod
2486 _Jv_JNI_CallMethodV<jshort>, // CallShortMethodV
2487 _Jv_JNI_CallMethodA<jshort>, // CallShortMethodA
2488 _Jv_JNI_CallMethod<jint>, // CallIntMethod
2489 _Jv_JNI_CallMethodV<jint>, // CallIntMethodV
2490 _Jv_JNI_CallMethodA<jint>, // CallIntMethodA
2491 _Jv_JNI_CallMethod<jlong>, // CallLongMethod
2492 _Jv_JNI_CallMethodV<jlong>, // CallLongMethodV
2493 _Jv_JNI_CallMethodA<jlong>, // CallLongMethodA
2494 _Jv_JNI_CallMethod<jfloat>, // CallFloatMethod
2495 _Jv_JNI_CallMethodV<jfloat>, // CallFloatMethodV
2496 _Jv_JNI_CallMethodA<jfloat>, // CallFloatMethodA
2497 _Jv_JNI_CallMethod<jdouble>, // CallDoubleMethod
2498 _Jv_JNI_CallMethodV<jdouble>, // CallDoubleMethodV
2499 _Jv_JNI_CallMethodA<jdouble>, // CallDoubleMethodA
2500 _Jv_JNI_CallVoidMethod, // CallVoidMethod
2501 _Jv_JNI_CallVoidMethodV, // CallVoidMethodV
2502 _Jv_JNI_CallVoidMethodA, // CallVoidMethodA
2504 // Nonvirtual method invocation functions follow.
2505 _Jv_JNI_CallAnyMethod<jobject, nonvirtual>, // CallNonvirtualObjectMethod
2506 _Jv_JNI_CallAnyMethodV<jobject, nonvirtual>, // CallNonvirtualObjectMethodV
2507 _Jv_JNI_CallAnyMethodA<jobject, nonvirtual>, // CallNonvirtualObjectMethodA
2508 _Jv_JNI_CallAnyMethod<jboolean, nonvirtual>, // CallNonvirtualBooleanMethod
2509 _Jv_JNI_CallAnyMethodV<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodV
2510 _Jv_JNI_CallAnyMethodA<jboolean, nonvirtual>, // CallNonvirtualBooleanMethodA
2511 _Jv_JNI_CallAnyMethod<jbyte, nonvirtual>, // CallNonvirtualByteMethod
2512 _Jv_JNI_CallAnyMethodV<jbyte, nonvirtual>, // CallNonvirtualByteMethodV
2513 _Jv_JNI_CallAnyMethodA<jbyte, nonvirtual>, // CallNonvirtualByteMethodA
2514 _Jv_JNI_CallAnyMethod<jchar, nonvirtual>, // CallNonvirtualCharMethod
2515 _Jv_JNI_CallAnyMethodV<jchar, nonvirtual>, // CallNonvirtualCharMethodV
2516 _Jv_JNI_CallAnyMethodA<jchar, nonvirtual>, // CallNonvirtualCharMethodA
2517 _Jv_JNI_CallAnyMethod<jshort, nonvirtual>, // CallNonvirtualShortMethod
2518 _Jv_JNI_CallAnyMethodV<jshort, nonvirtual>, // CallNonvirtualShortMethodV
2519 _Jv_JNI_CallAnyMethodA<jshort, nonvirtual>, // CallNonvirtualShortMethodA
2520 _Jv_JNI_CallAnyMethod<jint, nonvirtual>, // CallNonvirtualIntMethod
2521 _Jv_JNI_CallAnyMethodV<jint, nonvirtual>, // CallNonvirtualIntMethodV
2522 _Jv_JNI_CallAnyMethodA<jint, nonvirtual>, // CallNonvirtualIntMethodA
2523 _Jv_JNI_CallAnyMethod<jlong, nonvirtual>, // CallNonvirtualLongMethod
2524 _Jv_JNI_CallAnyMethodV<jlong, nonvirtual>, // CallNonvirtualLongMethodV
2525 _Jv_JNI_CallAnyMethodA<jlong, nonvirtual>, // CallNonvirtualLongMethodA
2526 _Jv_JNI_CallAnyMethod<jfloat, nonvirtual>, // CallNonvirtualFloatMethod
2527 _Jv_JNI_CallAnyMethodV<jfloat, nonvirtual>, // CallNonvirtualFloatMethodV
2528 _Jv_JNI_CallAnyMethodA<jfloat, nonvirtual>, // CallNonvirtualFloatMethodA
2529 _Jv_JNI_CallAnyMethod<jdouble, nonvirtual>, // CallNonvirtualDoubleMethod
2530 _Jv_JNI_CallAnyMethodV<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodV
2531 _Jv_JNI_CallAnyMethodA<jdouble, nonvirtual>, // CallNonvirtualDoubleMethodA
2532 _Jv_JNI_CallAnyVoidMethod<nonvirtual>, // CallNonvirtualVoidMethod
2533 _Jv_JNI_CallAnyVoidMethodV<nonvirtual>, // CallNonvirtualVoidMethodV
2534 _Jv_JNI_CallAnyVoidMethodA<nonvirtual>, // CallNonvirtualVoidMethodA
2536 _Jv_JNI_GetAnyFieldID<false>, // GetFieldID
2537 _Jv_JNI_GetField<jobject>, // GetObjectField
2538 _Jv_JNI_GetField<jboolean>, // GetBooleanField
2539 _Jv_JNI_GetField<jbyte>, // GetByteField
2540 _Jv_JNI_GetField<jchar>, // GetCharField
2541 _Jv_JNI_GetField<jshort>, // GetShortField
2542 _Jv_JNI_GetField<jint>, // GetIntField
2543 _Jv_JNI_GetField<jlong>, // GetLongField
2544 _Jv_JNI_GetField<jfloat>, // GetFloatField
2545 _Jv_JNI_GetField<jdouble>, // GetDoubleField
2546 _Jv_JNI_SetField, // SetObjectField
2547 _Jv_JNI_SetField, // SetBooleanField
2548 _Jv_JNI_SetField, // SetByteField
2549 _Jv_JNI_SetField, // SetCharField
2550 _Jv_JNI_SetField, // SetShortField
2551 _Jv_JNI_SetField, // SetIntField
2552 _Jv_JNI_SetField, // SetLongField
2553 _Jv_JNI_SetField, // SetFloatField
2554 _Jv_JNI_SetField, // SetDoubleField
2555 _Jv_JNI_GetAnyMethodID<true>, // GetStaticMethodID
2557 _Jv_JNI_CallStaticMethod<jobject>, // CallStaticObjectMethod
2558 _Jv_JNI_CallStaticMethodV<jobject>, // CallStaticObjectMethodV
2559 _Jv_JNI_CallStaticMethodA<jobject>, // CallStaticObjectMethodA
2560 _Jv_JNI_CallStaticMethod<jboolean>, // CallStaticBooleanMethod
2561 _Jv_JNI_CallStaticMethodV<jboolean>, // CallStaticBooleanMethodV
2562 _Jv_JNI_CallStaticMethodA<jboolean>, // CallStaticBooleanMethodA
2563 _Jv_JNI_CallStaticMethod<jbyte>, // CallStaticByteMethod
2564 _Jv_JNI_CallStaticMethodV<jbyte>, // CallStaticByteMethodV
2565 _Jv_JNI_CallStaticMethodA<jbyte>, // CallStaticByteMethodA
2566 _Jv_JNI_CallStaticMethod<jchar>, // CallStaticCharMethod
2567 _Jv_JNI_CallStaticMethodV<jchar>, // CallStaticCharMethodV
2568 _Jv_JNI_CallStaticMethodA<jchar>, // CallStaticCharMethodA
2569 _Jv_JNI_CallStaticMethod<jshort>, // CallStaticShortMethod
2570 _Jv_JNI_CallStaticMethodV<jshort>, // CallStaticShortMethodV
2571 _Jv_JNI_CallStaticMethodA<jshort>, // CallStaticShortMethodA
2572 _Jv_JNI_CallStaticMethod<jint>, // CallStaticIntMethod
2573 _Jv_JNI_CallStaticMethodV<jint>, // CallStaticIntMethodV
2574 _Jv_JNI_CallStaticMethodA<jint>, // CallStaticIntMethodA
2575 _Jv_JNI_CallStaticMethod<jlong>, // CallStaticLongMethod
2576 _Jv_JNI_CallStaticMethodV<jlong>, // CallStaticLongMethodV
2577 _Jv_JNI_CallStaticMethodA<jlong>, // CallStaticLongMethodA
2578 _Jv_JNI_CallStaticMethod<jfloat>, // CallStaticFloatMethod
2579 _Jv_JNI_CallStaticMethodV<jfloat>, // CallStaticFloatMethodV
2580 _Jv_JNI_CallStaticMethodA<jfloat>, // CallStaticFloatMethodA
2581 _Jv_JNI_CallStaticMethod<jdouble>, // CallStaticDoubleMethod
2582 _Jv_JNI_CallStaticMethodV<jdouble>, // CallStaticDoubleMethodV
2583 _Jv_JNI_CallStaticMethodA<jdouble>, // CallStaticDoubleMethodA
2584 _Jv_JNI_CallStaticVoidMethod, // CallStaticVoidMethod
2585 _Jv_JNI_CallStaticVoidMethodV, // CallStaticVoidMethodV
2586 _Jv_JNI_CallStaticVoidMethodA, // CallStaticVoidMethodA
2588 _Jv_JNI_GetAnyFieldID<true>, // GetStaticFieldID
2589 _Jv_JNI_GetStaticField<jobject>, // GetStaticObjectField
2590 _Jv_JNI_GetStaticField<jboolean>, // GetStaticBooleanField
2591 _Jv_JNI_GetStaticField<jbyte>, // GetStaticByteField
2592 _Jv_JNI_GetStaticField<jchar>, // GetStaticCharField
2593 _Jv_JNI_GetStaticField<jshort>, // GetStaticShortField
2594 _Jv_JNI_GetStaticField<jint>, // GetStaticIntField
2595 _Jv_JNI_GetStaticField<jlong>, // GetStaticLongField
2596 _Jv_JNI_GetStaticField<jfloat>, // GetStaticFloatField
2597 _Jv_JNI_GetStaticField<jdouble>, // GetStaticDoubleField
2598 _Jv_JNI_SetStaticField, // SetStaticObjectField
2599 _Jv_JNI_SetStaticField, // SetStaticBooleanField
2600 _Jv_JNI_SetStaticField, // SetStaticByteField
2601 _Jv_JNI_SetStaticField, // SetStaticCharField
2602 _Jv_JNI_SetStaticField, // SetStaticShortField
2603 _Jv_JNI_SetStaticField, // SetStaticIntField
2604 _Jv_JNI_SetStaticField, // SetStaticLongField
2605 _Jv_JNI_SetStaticField, // SetStaticFloatField
2606 _Jv_JNI_SetStaticField, // SetStaticDoubleField
2607 _Jv_JNI_NewString, // NewString
2608 _Jv_JNI_GetStringLength, // GetStringLength
2609 _Jv_JNI_GetStringChars, // GetStringChars
2610 _Jv_JNI_ReleaseStringChars, // ReleaseStringChars
2611 _Jv_JNI_NewStringUTF, // NewStringUTF
2612 _Jv_JNI_GetStringUTFLength, // GetStringUTFLength
2613 _Jv_JNI_GetStringUTFChars, // GetStringUTFChars
2614 _Jv_JNI_ReleaseStringUTFChars, // ReleaseStringUTFChars
2615 _Jv_JNI_GetArrayLength, // GetArrayLength
2616 _Jv_JNI_NewObjectArray, // NewObjectArray
2617 _Jv_JNI_GetObjectArrayElement, // GetObjectArrayElement
2618 _Jv_JNI_SetObjectArrayElement, // SetObjectArrayElement
2619 _Jv_JNI_NewPrimitiveArray<jboolean, JvPrimClass (boolean)>,
2621 _Jv_JNI_NewPrimitiveArray<jbyte, JvPrimClass (byte)>, // NewByteArray
2622 _Jv_JNI_NewPrimitiveArray<jchar, JvPrimClass (char)>, // NewCharArray
2623 _Jv_JNI_NewPrimitiveArray<jshort, JvPrimClass (short)>, // NewShortArray
2624 _Jv_JNI_NewPrimitiveArray<jint, JvPrimClass (int)>, // NewIntArray
2625 _Jv_JNI_NewPrimitiveArray<jlong, JvPrimClass (long)>, // NewLongArray
2626 _Jv_JNI_NewPrimitiveArray<jfloat, JvPrimClass (float)>, // NewFloatArray
2627 _Jv_JNI_NewPrimitiveArray<jdouble, JvPrimClass (double)>, // NewDoubleArray
2628 _Jv_JNI_GetPrimitiveArrayElements, // GetBooleanArrayElements
2629 _Jv_JNI_GetPrimitiveArrayElements, // GetByteArrayElements
2630 _Jv_JNI_GetPrimitiveArrayElements, // GetCharArrayElements
2631 _Jv_JNI_GetPrimitiveArrayElements, // GetShortArrayElements
2632 _Jv_JNI_GetPrimitiveArrayElements, // GetIntArrayElements
2633 _Jv_JNI_GetPrimitiveArrayElements, // GetLongArrayElements
2634 _Jv_JNI_GetPrimitiveArrayElements, // GetFloatArrayElements
2635 _Jv_JNI_GetPrimitiveArrayElements, // GetDoubleArrayElements
2636 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseBooleanArrayElements
2637 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseByteArrayElements
2638 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseCharArrayElements
2639 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseShortArrayElements
2640 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseIntArrayElements
2641 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseLongArrayElements
2642 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseFloatArrayElements
2643 _Jv_JNI_ReleasePrimitiveArrayElements, // ReleaseDoubleArrayElements
2644 _Jv_JNI_GetPrimitiveArrayRegion, // GetBooleanArrayRegion
2645 _Jv_JNI_GetPrimitiveArrayRegion, // GetByteArrayRegion
2646 _Jv_JNI_GetPrimitiveArrayRegion, // GetCharArrayRegion
2647 _Jv_JNI_GetPrimitiveArrayRegion, // GetShortArrayRegion
2648 _Jv_JNI_GetPrimitiveArrayRegion, // GetIntArrayRegion
2649 _Jv_JNI_GetPrimitiveArrayRegion, // GetLongArrayRegion
2650 _Jv_JNI_GetPrimitiveArrayRegion, // GetFloatArrayRegion
2651 _Jv_JNI_GetPrimitiveArrayRegion, // GetDoubleArrayRegion
2652 _Jv_JNI_SetPrimitiveArrayRegion, // SetBooleanArrayRegion
2653 _Jv_JNI_SetPrimitiveArrayRegion, // SetByteArrayRegion
2654 _Jv_JNI_SetPrimitiveArrayRegion, // SetCharArrayRegion
2655 _Jv_JNI_SetPrimitiveArrayRegion, // SetShortArrayRegion
2656 _Jv_JNI_SetPrimitiveArrayRegion, // SetIntArrayRegion
2657 _Jv_JNI_SetPrimitiveArrayRegion, // SetLongArrayRegion
2658 _Jv_JNI_SetPrimitiveArrayRegion, // SetFloatArrayRegion
2659 _Jv_JNI_SetPrimitiveArrayRegion, // SetDoubleArrayRegion
2660 _Jv_JNI_RegisterNatives, // RegisterNatives
2661 _Jv_JNI_UnregisterNatives, // UnregisterNatives
2662 _Jv_JNI_MonitorEnter, // MonitorEnter
2663 _Jv_JNI_MonitorExit, // MonitorExit
2664 _Jv_JNI_GetJavaVM, // GetJavaVM
2666 _Jv_JNI_GetStringRegion, // GetStringRegion
2667 _Jv_JNI_GetStringUTFRegion, // GetStringUTFRegion
2668 _Jv_JNI_GetPrimitiveArrayCritical, // GetPrimitiveArrayCritical
2669 _Jv_JNI_ReleasePrimitiveArrayCritical, // ReleasePrimitiveArrayCritical
2670 _Jv_JNI_GetStringCritical, // GetStringCritical
2671 _Jv_JNI_ReleaseStringCritical, // ReleaseStringCritical
2673 _Jv_JNI_NewWeakGlobalRef, // NewWeakGlobalRef
2674 _Jv_JNI_DeleteWeakGlobalRef, // DeleteWeakGlobalRef
2676 _Jv_JNI_ExceptionCheck, // ExceptionCheck
2678 _Jv_JNI_NewDirectByteBuffer, // NewDirectByteBuffer
2679 _Jv_JNI_GetDirectBufferAddress, // GetDirectBufferAddress
2680 _Jv_JNI_GetDirectBufferCapacity // GetDirectBufferCapacity
2683 struct JNIInvokeInterface _Jv_JNI_InvokeFunctions =
2689 _Jv_JNI_DestroyJavaVM,
2690 _Jv_JNI_AttachCurrentThread,
2691 _Jv_JNI_DetachCurrentThread,
2693 _Jv_JNI_AttachCurrentThreadAsDaemon