36 #include "runtime/handles.hpp"
37 #include "runtime/interfaceSupport.hpp"
38 #include "runtime/jfieldIDWorkaround.hpp"
39 #include "runtime/thread.inline.hpp"
40 #ifdef TARGET_ARCH_x86
41 # include "jniTypes_x86.hpp"
42 #endif
43 #ifdef TARGET_ARCH_sparc
44 # include "jniTypes_sparc.hpp"
45 #endif
46 #ifdef TARGET_ARCH_zero
47 # include "jniTypes_zero.hpp"
48 #endif
49 #ifdef TARGET_ARCH_arm
50 # include "jniTypes_arm.hpp"
51 #endif
52 #ifdef TARGET_ARCH_ppc
53 # include "jniTypes_ppc.hpp"
54 #endif
55
56
57 // Heap objects are allowed to be directly referenced only in VM code,
58 // not in native code.
59
60 #define ASSERT_OOPS_ALLOWED \
61 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
62 "jniCheck examining oops in bad state.")
63
64
65 // Execute the given block of source code with the thread in VM state.
66 // To do this, transition from the NATIVE state to the VM state, execute
67 // the code, and transtition back. The ThreadInVMfromNative constructor
68 // performs the transition to VM state, its destructor restores the
69 // NATIVE state.
70
71 #define IN_VM(source_code) { \
72 { \
73 ThreadInVMfromNative __tiv(thr); \
74 source_code \
75 } \
151 // When in NATIVE state:
152 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
153 IN_VM(
154 ReportJNIFatalError(thr, msg);
155 )
156 }
157
158 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
159 IN_VM(
160 ReportJNIWarning(thr, msg);
161 )
162 }
163
164
165
166
167 /*
168 * SUPPORT FUNCTIONS
169 */
170
171 static inline void
172 functionEnterCritical(JavaThread* thr)
173 {
174 if (thr->has_pending_exception()) {
175 NativeReportJNIWarning(thr, "JNI call made with exception pending");
176 }
177 }
178
179 static inline void
180 functionEnterCriticalExceptionAllowed(JavaThread* thr)
181 {
182 }
183
184 static inline void
185 functionEnter(JavaThread* thr)
186 {
187 if (thr->in_critical()) {
188 tty->print_cr("%s", warn_other_function_in_critical);
189 }
190 if (thr->has_pending_exception()) {
191 NativeReportJNIWarning(thr, "JNI call made with exception pending");
192 }
193 }
194
195 static inline void
196 functionEnterExceptionAllowed(JavaThread* thr)
197 {
198 if (thr->in_critical()) {
199 tty->print_cr("%s", warn_other_function_in_critical);
200 }
201 }
202
203 static inline void
204 functionExit(JNIEnv *env)
205 {
206 /* nothing to do at this time */
207 }
208
209 static inline void
210 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
211 {
212 fieldDescriptor fd;
213
214 /* make sure it is a static field */
215 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
216 ReportJNIFatalError(thr, fatal_should_be_static);
217
218 /* validate the class being passed */
219 ASSERT_OOPS_ALLOWED;
220 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
221
222 /* check for proper subclass hierarchy */
223 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
224 Klass* f_oop = id->holder();
225 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
226 ReportJNIFatalError(thr, fatal_wrong_static_field);
491 jniCheck::validate_jmethod_id(thr, method_id);
492 jniCheck::validate_class(thr, clazz, false);
493 }
494
495
496 /*
497 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
498 */
499
500 JNI_ENTRY_CHECKED(jclass,
501 checked_jni_DefineClass(JNIEnv *env,
502 const char *name,
503 jobject loader,
504 const jbyte *buf,
505 jsize len))
506 functionEnter(thr);
507 IN_VM(
508 jniCheck::validate_object(thr, loader);
509 )
510 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
511 functionExit(env);
512 return result;
513 JNI_END
514
515 JNI_ENTRY_CHECKED(jclass,
516 checked_jni_FindClass(JNIEnv *env,
517 const char *name))
518 functionEnter(thr);
519 IN_VM(
520 jniCheck::validate_class_descriptor(thr, name);
521 )
522 jclass result = UNCHECKED()->FindClass(env, name);
523 functionExit(env);
524 return result;
525 JNI_END
526
527 JNI_ENTRY_CHECKED(jmethodID,
528 checked_jni_FromReflectedMethod(JNIEnv *env,
529 jobject method))
530 functionEnter(thr);
531 IN_VM(
532 jniCheck::validate_object(thr, method);
533 )
534 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
535 functionExit(env);
536 return result;
537 JNI_END
538
539 JNI_ENTRY_CHECKED(jfieldID,
540 checked_jni_FromReflectedField(JNIEnv *env,
541 jobject field))
542 functionEnter(thr);
543 IN_VM(
544 jniCheck::validate_object(thr, field);
545 )
546 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
547 functionExit(env);
548 return result;
549 JNI_END
550
551 JNI_ENTRY_CHECKED(jobject,
552 checked_jni_ToReflectedMethod(JNIEnv *env,
553 jclass cls,
554 jmethodID methodID,
555 jboolean isStatic))
556 functionEnter(thr);
557 IN_VM(
558 jniCheck::validate_class(thr, cls, false);
559 jniCheck::validate_jmethod_id(thr, methodID);
560 )
561 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
562 isStatic);
563 functionExit(env);
564 return result;
565 JNI_END
566
567 JNI_ENTRY_CHECKED(jclass,
568 checked_jni_GetSuperclass(JNIEnv *env,
569 jclass sub))
570 functionEnter(thr);
571 IN_VM(
572 jniCheck::validate_class(thr, sub, true);
573 )
574 jclass result = UNCHECKED()->GetSuperclass(env, sub);
575 functionExit(env);
576 return result;
577 JNI_END
578
579 JNI_ENTRY_CHECKED(jboolean,
580 checked_jni_IsAssignableFrom(JNIEnv *env,
581 jclass sub,
582 jclass sup))
583 functionEnter(thr);
584 IN_VM(
585 jniCheck::validate_class(thr, sub, true);
586 jniCheck::validate_class(thr, sup, true);
587 )
588 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
589 functionExit(env);
590 return result;
591 JNI_END
592
593 JNI_ENTRY_CHECKED(jobject,
594 checked_jni_ToReflectedField(JNIEnv *env,
595 jclass cls,
596 jfieldID fieldID,
597 jboolean isStatic))
598 functionEnter(thr);
599 IN_VM(
600 jniCheck::validate_class(thr, cls, false);
601 )
602 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
603 isStatic);
604 functionExit(env);
605 return result;
606 JNI_END
607
608 JNI_ENTRY_CHECKED(jint,
609 checked_jni_Throw(JNIEnv *env,
610 jthrowable obj))
611 functionEnter(thr);
612 IN_VM(
613 oop oopObj = jniCheck::validate_object(thr, obj);
614 if (oopObj == NULL) {
615 // Unchecked Throw tolerates a NULL obj, so just warn
616 ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
617 } else {
618 jniCheck::validate_throwable_klass(thr, oopObj->klass());
619 }
620 )
621 jint result = UNCHECKED()->Throw(env, obj);
622 functionExit(env);
623 return result;
624 JNI_END
625
626 JNI_ENTRY_CHECKED(jint,
627 checked_jni_ThrowNew(JNIEnv *env,
628 jclass clazz,
629 const char *msg))
630 functionEnter(thr);
631 IN_VM(
632 Klass* k = jniCheck::validate_class(thr, clazz, false);
633 assert(k != NULL, "validate_class shouldn't return NULL Klass*");
634 jniCheck::validate_throwable_klass(thr, k);
635 )
636 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
637 functionExit(env);
638 return result;
639 JNI_END
640
641 JNI_ENTRY_CHECKED(jthrowable,
642 checked_jni_ExceptionOccurred(JNIEnv *env))
643 functionEnterExceptionAllowed(thr);
644 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
645 functionExit(env);
646 return result;
647 JNI_END
648
649 JNI_ENTRY_CHECKED(void,
650 checked_jni_ExceptionDescribe(JNIEnv *env))
651 functionEnterExceptionAllowed(thr);
652 UNCHECKED()->ExceptionDescribe(env);
653 functionExit(env);
654 JNI_END
655
656 JNI_ENTRY_CHECKED(void,
657 checked_jni_ExceptionClear(JNIEnv *env))
658 functionEnterExceptionAllowed(thr);
659 UNCHECKED()->ExceptionClear(env);
660 functionExit(env);
661 JNI_END
662
663 JNI_ENTRY_CHECKED(void,
664 checked_jni_FatalError(JNIEnv *env,
665 const char *msg))
666 functionEnter(thr);
667 UNCHECKED()->FatalError(env, msg);
668 functionExit(env);
669 JNI_END
670
671 JNI_ENTRY_CHECKED(jint,
672 checked_jni_PushLocalFrame(JNIEnv *env,
673 jint capacity))
674 functionEnterExceptionAllowed(thr);
675 if (capacity < 0)
676 NativeReportJNIFatalError(thr, "negative capacity");
677 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
678 functionExit(env);
679 return result;
680 JNI_END
681
682 JNI_ENTRY_CHECKED(jobject,
683 checked_jni_PopLocalFrame(JNIEnv *env,
684 jobject result))
685 functionEnterExceptionAllowed(thr);
686 jobject res = UNCHECKED()->PopLocalFrame(env, result);
687 functionExit(env);
688 return res;
689 JNI_END
690
691 JNI_ENTRY_CHECKED(jobject,
692 checked_jni_NewGlobalRef(JNIEnv *env,
693 jobject lobj))
694 functionEnter(thr);
695 IN_VM(
696 if (lobj != NULL) {
697 jniCheck::validate_handle(thr, lobj);
698 }
699 )
700 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
701 functionExit(env);
702 return result;
703 JNI_END
704
705 JNI_ENTRY_CHECKED(void,
706 checked_jni_DeleteGlobalRef(JNIEnv *env,
707 jobject gref))
708 functionEnterExceptionAllowed(thr);
709 IN_VM(
710 jniCheck::validate_object(thr, gref);
711 if (gref && !JNIHandles::is_global_handle(gref)) {
712 ReportJNIFatalError(thr,
713 "Invalid global JNI handle passed to DeleteGlobalRef");
714 }
715 )
716 UNCHECKED()->DeleteGlobalRef(env,gref);
717 functionExit(env);
718 JNI_END
719
720 JNI_ENTRY_CHECKED(void,
721 checked_jni_DeleteLocalRef(JNIEnv *env,
722 jobject obj))
723 functionEnterExceptionAllowed(thr);
724 IN_VM(
725 jniCheck::validate_object(thr, obj);
726 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
727 JNIHandles::is_frame_handle(thr, obj)))
728 ReportJNIFatalError(thr,
729 "Invalid local JNI handle passed to DeleteLocalRef");
730 )
731 UNCHECKED()->DeleteLocalRef(env, obj);
732 functionExit(env);
733 JNI_END
734
735 JNI_ENTRY_CHECKED(jboolean,
736 checked_jni_IsSameObject(JNIEnv *env,
737 jobject obj1,
738 jobject obj2))
739 functionEnterExceptionAllowed(thr);
740 IN_VM(
741 /* This JNI function can be used to compare weak global references
742 * to NULL objects. If the handles are valid, but contain NULL,
743 * then don't attempt to validate the object.
744 */
745 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
746 jniCheck::validate_object(thr, obj1);
747 }
748 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
749 jniCheck::validate_object(thr, obj2);
750 }
751 )
752 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
753 functionExit(env);
754 return result;
755 JNI_END
756
757 JNI_ENTRY_CHECKED(jobject,
758 checked_jni_NewLocalRef(JNIEnv *env,
759 jobject ref))
760 functionEnter(thr);
761 IN_VM(
762 if (ref != NULL) {
763 jniCheck::validate_handle(thr, ref);
764 }
765 )
766 jobject result = UNCHECKED()->NewLocalRef(env, ref);
767 functionExit(env);
768 return result;
769 JNI_END
770
771 JNI_ENTRY_CHECKED(jint,
772 checked_jni_EnsureLocalCapacity(JNIEnv *env,
773 jint capacity))
774 functionEnter(thr);
775 if (capacity < 0) {
776 NativeReportJNIFatalError(thr, "negative capacity");
777 }
778 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
779 functionExit(env);
780 return result;
781 JNI_END
782
783 JNI_ENTRY_CHECKED(jobject,
784 checked_jni_AllocObject(JNIEnv *env,
785 jclass clazz))
786 functionEnter(thr);
787 IN_VM(
788 jniCheck::validate_class(thr, clazz, false);
789 )
790 jobject result = UNCHECKED()->AllocObject(env,clazz);
791 functionExit(env);
792 return result;
793 JNI_END
794
795 JNI_ENTRY_CHECKED(jobject,
796 checked_jni_NewObject(JNIEnv *env,
797 jclass clazz,
798 jmethodID methodID,
799 ...))
800 functionEnter(thr);
801 va_list args;
802 IN_VM(
803 jniCheck::validate_class(thr, clazz, false);
804 jniCheck::validate_jmethod_id(thr, methodID);
805 )
806 va_start(args, methodID);
807 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
808 va_end(args);
809 functionExit(env);
810 return result;
811 JNI_END
812
813 JNI_ENTRY_CHECKED(jobject,
814 checked_jni_NewObjectV(JNIEnv *env,
815 jclass clazz,
816 jmethodID methodID,
817 va_list args))
818 functionEnter(thr);
819 IN_VM(
820 jniCheck::validate_class(thr, clazz, false);
821 jniCheck::validate_jmethod_id(thr, methodID);
822 )
823 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
824 functionExit(env);
825 return result;
826 JNI_END
827
828 JNI_ENTRY_CHECKED(jobject,
829 checked_jni_NewObjectA(JNIEnv *env,
830 jclass clazz,
831 jmethodID methodID,
832 const jvalue *args))
833 functionEnter(thr);
834 IN_VM(
835 jniCheck::validate_class(thr, clazz, false);
836 jniCheck::validate_jmethod_id(thr, methodID);
837 )
838 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
839 functionExit(env);
840 return result;
841 JNI_END
842
843 JNI_ENTRY_CHECKED(jclass,
844 checked_jni_GetObjectClass(JNIEnv *env,
845 jobject obj))
846 functionEnter(thr);
847 IN_VM(
848 jniCheck::validate_object(thr, obj);
849 )
850 jclass result = UNCHECKED()->GetObjectClass(env,obj);
851 functionExit(env);
852 return result;
853 JNI_END
854
855 JNI_ENTRY_CHECKED(jboolean,
856 checked_jni_IsInstanceOf(JNIEnv *env,
857 jobject obj,
858 jclass clazz))
859 functionEnter(thr);
860 IN_VM(
861 jniCheck::validate_object(thr, obj);
862 jniCheck::validate_class(thr, clazz, true);
863 )
864 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
865 functionExit(env);
866 return result;
867 JNI_END
868
869 JNI_ENTRY_CHECKED(jmethodID,
870 checked_jni_GetMethodID(JNIEnv *env,
871 jclass clazz,
872 const char *name,
873 const char *sig))
874 functionEnter(thr);
875 IN_VM(
876 jniCheck::validate_class(thr, clazz, false);
877 )
878 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
879 functionExit(env);
880 return result;
881 JNI_END
882
883 #define WRAPPER_CallMethod(ResultType, Result) \
884 JNI_ENTRY_CHECKED(ResultType, \
885 checked_jni_Call##Result##Method(JNIEnv *env, \
886 jobject obj, \
887 jmethodID methodID, \
888 ...)) \
889 functionEnter(thr); \
890 va_list args; \
891 IN_VM( \
892 jniCheck::validate_call_object(thr, obj, methodID); \
893 ) \
894 va_start(args,methodID); \
895 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
896 args); \
897 va_end(args); \
898 functionExit(env); \
899 return result; \
900 JNI_END \
901 \
902 JNI_ENTRY_CHECKED(ResultType, \
903 checked_jni_Call##Result##MethodV(JNIEnv *env, \
904 jobject obj, \
905 jmethodID methodID, \
906 va_list args)) \
907 functionEnter(thr); \
908 IN_VM(\
909 jniCheck::validate_call_object(thr, obj, methodID); \
910 ) \
911 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
912 args); \
913 functionExit(env); \
914 return result; \
915 JNI_END \
916 \
917 JNI_ENTRY_CHECKED(ResultType, \
918 checked_jni_Call##Result##MethodA(JNIEnv *env, \
919 jobject obj, \
920 jmethodID methodID, \
921 const jvalue * args)) \
922 functionEnter(thr); \
923 IN_VM( \
924 jniCheck::validate_call_object(thr, obj, methodID); \
925 ) \
926 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
927 args); \
928 functionExit(env); \
929 return result; \
930 JNI_END
931
932 WRAPPER_CallMethod(jobject,Object)
933 WRAPPER_CallMethod(jboolean,Boolean)
934 WRAPPER_CallMethod(jbyte,Byte)
935 WRAPPER_CallMethod(jshort,Short)
936 WRAPPER_CallMethod(jchar,Char)
937 WRAPPER_CallMethod(jint,Int)
938 WRAPPER_CallMethod(jlong,Long)
939 WRAPPER_CallMethod(jfloat,Float)
940 WRAPPER_CallMethod(jdouble,Double)
941
942 JNI_ENTRY_CHECKED(void,
943 checked_jni_CallVoidMethod(JNIEnv *env, \
944 jobject obj, \
945 jmethodID methodID, \
946 ...))
947 functionEnter(thr);
948 va_list args;
949 IN_VM(
950 jniCheck::validate_call_object(thr, obj, methodID);
951 )
952 va_start(args,methodID);
953 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
954 va_end(args);
955 functionExit(env);
956 JNI_END
957
958 JNI_ENTRY_CHECKED(void,
959 checked_jni_CallVoidMethodV(JNIEnv *env,
960 jobject obj,
961 jmethodID methodID,
962 va_list args))
963 functionEnter(thr);
964 IN_VM(
965 jniCheck::validate_call_object(thr, obj, methodID);
966 )
967 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
968 functionExit(env);
969 JNI_END
970
971 JNI_ENTRY_CHECKED(void,
972 checked_jni_CallVoidMethodA(JNIEnv *env,
973 jobject obj,
974 jmethodID methodID,
975 const jvalue * args))
976 functionEnter(thr);
977 IN_VM(
978 jniCheck::validate_call_object(thr, obj, methodID);
979 )
980 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
981 functionExit(env);
982 JNI_END
983
984 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
985 JNI_ENTRY_CHECKED(ResultType, \
986 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
987 jobject obj, \
988 jclass clazz, \
989 jmethodID methodID, \
990 ...)) \
991 functionEnter(thr); \
992 va_list args; \
993 IN_VM( \
994 jniCheck::validate_call_object(thr, obj, methodID); \
995 jniCheck::validate_call_class(thr, clazz, methodID); \
996 ) \
997 va_start(args,methodID); \
998 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
999 obj, \
1000 clazz, \
1001 methodID,\
1002 args); \
1003 va_end(args); \
1004 functionExit(env); \
1005 return result; \
1006 JNI_END \
1007 \
1008 JNI_ENTRY_CHECKED(ResultType, \
1009 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1010 jobject obj, \
1011 jclass clazz, \
1012 jmethodID methodID, \
1013 va_list args)) \
1014 functionEnter(thr); \
1015 IN_VM( \
1016 jniCheck::validate_call_object(thr, obj, methodID); \
1017 jniCheck::validate_call_class(thr, clazz, methodID); \
1018 ) \
1019 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1020 obj, \
1021 clazz, \
1022 methodID,\
1023 args); \
1024 functionExit(env); \
1025 return result; \
1026 JNI_END \
1027 \
1028 JNI_ENTRY_CHECKED(ResultType, \
1029 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1030 jobject obj, \
1031 jclass clazz, \
1032 jmethodID methodID, \
1033 const jvalue * args)) \
1034 functionEnter(thr); \
1035 IN_VM( \
1036 jniCheck::validate_call_object(thr, obj, methodID); \
1037 jniCheck::validate_call_class(thr, clazz, methodID); \
1038 ) \
1039 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1040 obj, \
1041 clazz, \
1042 methodID,\
1043 args); \
1044 functionExit(env); \
1045 return result; \
1046 JNI_END
1047
1048 WRAPPER_CallNonvirtualMethod(jobject,Object)
1049 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1050 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1051 WRAPPER_CallNonvirtualMethod(jshort,Short)
1052 WRAPPER_CallNonvirtualMethod(jchar,Char)
1053 WRAPPER_CallNonvirtualMethod(jint,Int)
1054 WRAPPER_CallNonvirtualMethod(jlong,Long)
1055 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1056 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1057
1058 JNI_ENTRY_CHECKED(void,
1059 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1060 jobject obj,
1061 jclass clazz,
1062 jmethodID methodID,
1063 ...))
1064 functionEnter(thr);
1065 va_list args;
1066 IN_VM(
1067 jniCheck::validate_call_object(thr, obj, methodID);
1068 jniCheck::validate_call_class(thr, clazz, methodID);
1069 )
1070 va_start(args,methodID);
1071 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1072 va_end(args);
1073 functionExit(env);
1074 JNI_END
1075
1076 JNI_ENTRY_CHECKED(void,
1077 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1078 jobject obj,
1079 jclass clazz,
1080 jmethodID methodID,
1081 va_list args))
1082 functionEnter(thr);
1083 IN_VM(
1084 jniCheck::validate_call_object(thr, obj, methodID);
1085 jniCheck::validate_call_class(thr, clazz, methodID);
1086 )
1087 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1088 functionExit(env);
1089 JNI_END
1090
1091 JNI_ENTRY_CHECKED(void,
1092 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1093 jobject obj,
1094 jclass clazz,
1095 jmethodID methodID,
1096 const jvalue * args))
1097 functionEnter(thr);
1098 IN_VM(
1099 jniCheck::validate_call_object(thr, obj, methodID);
1100 jniCheck::validate_call_class(thr, clazz, methodID);
1101 )
1102 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1103 functionExit(env);
1104 JNI_END
1105
1106 JNI_ENTRY_CHECKED(jfieldID,
1107 checked_jni_GetFieldID(JNIEnv *env,
1108 jclass clazz,
1109 const char *name,
1110 const char *sig))
1111 functionEnter(thr);
1112 IN_VM(
1113 jniCheck::validate_class(thr, clazz, false);
1114 )
1115 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1116 functionExit(env);
1117 return result;
1118 JNI_END
1119
1120 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1121 JNI_ENTRY_CHECKED(ReturnType, \
1122 checked_jni_Get##Result##Field(JNIEnv *env, \
1123 jobject obj, \
1124 jfieldID fieldID)) \
1125 functionEnter(thr); \
1126 IN_VM( \
1127 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1128 ) \
1129 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1130 functionExit(env); \
1131 return result; \
1132 JNI_END
1133
1134 WRAPPER_GetField(jobject, Object, T_OBJECT)
1135 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1136 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1137 WRAPPER_GetField(jshort, Short, T_SHORT)
1138 WRAPPER_GetField(jchar, Char, T_CHAR)
1139 WRAPPER_GetField(jint, Int, T_INT)
1140 WRAPPER_GetField(jlong, Long, T_LONG)
1141 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1142 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1143
1144 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1145 JNI_ENTRY_CHECKED(void, \
1146 checked_jni_Set##Result##Field(JNIEnv *env, \
1147 jobject obj, \
1148 jfieldID fieldID, \
1149 ValueType val)) \
1150 functionEnter(thr); \
1151 IN_VM( \
1152 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1153 ) \
1154 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1155 functionExit(env); \
1156 JNI_END
1157
1158 WRAPPER_SetField(jobject, Object, T_OBJECT)
1159 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1160 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1161 WRAPPER_SetField(jshort, Short, T_SHORT)
1162 WRAPPER_SetField(jchar, Char, T_CHAR)
1163 WRAPPER_SetField(jint, Int, T_INT)
1164 WRAPPER_SetField(jlong, Long, T_LONG)
1165 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1166 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1167
1168
1169 JNI_ENTRY_CHECKED(jmethodID,
1170 checked_jni_GetStaticMethodID(JNIEnv *env,
1171 jclass clazz,
1172 const char *name,
1173 const char *sig))
1174 functionEnter(thr);
1175 IN_VM(
1176 jniCheck::validate_class(thr, clazz, false);
1177 )
1178 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1179 functionExit(env);
1180 return result;
1181 JNI_END
1182
1183 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1184 JNI_ENTRY_CHECKED(ReturnType, \
1185 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1186 jclass clazz, \
1187 jmethodID methodID, \
1188 ...)) \
1189 functionEnter(thr); \
1190 va_list args; \
1191 IN_VM( \
1192 jniCheck::validate_jmethod_id(thr, methodID); \
1193 jniCheck::validate_class(thr, clazz, false); \
1194 ) \
1195 va_start(args,methodID); \
1196 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1197 clazz, \
1198 methodID, \
1199 args); \
1200 va_end(args); \
1201 functionExit(env); \
1202 return result; \
1203 JNI_END \
1204 \
1205 JNI_ENTRY_CHECKED(ReturnType, \
1206 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1207 jclass clazz, \
1208 jmethodID methodID,\
1209 va_list args)) \
1210 functionEnter(thr); \
1211 IN_VM( \
1212 jniCheck::validate_jmethod_id(thr, methodID); \
1213 jniCheck::validate_class(thr, clazz, false); \
1214 ) \
1215 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1216 clazz, \
1217 methodID, \
1218 args); \
1219 functionExit(env); \
1220 return result; \
1221 JNI_END \
1222 \
1223 JNI_ENTRY_CHECKED(ReturnType, \
1224 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1225 jclass clazz, \
1226 jmethodID methodID, \
1227 const jvalue *args)) \
1228 functionEnter(thr); \
1229 IN_VM( \
1230 jniCheck::validate_jmethod_id(thr, methodID); \
1231 jniCheck::validate_class(thr, clazz, false); \
1232 ) \
1233 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1234 clazz, \
1235 methodID, \
1236 args); \
1237 functionExit(env); \
1238 return result; \
1239 JNI_END
1240
1241 WRAPPER_CallStaticMethod(jobject,Object)
1242 WRAPPER_CallStaticMethod(jboolean,Boolean)
1243 WRAPPER_CallStaticMethod(jbyte,Byte)
1244 WRAPPER_CallStaticMethod(jshort,Short)
1245 WRAPPER_CallStaticMethod(jchar,Char)
1246 WRAPPER_CallStaticMethod(jint,Int)
1247 WRAPPER_CallStaticMethod(jlong,Long)
1248 WRAPPER_CallStaticMethod(jfloat,Float)
1249 WRAPPER_CallStaticMethod(jdouble,Double)
1250
1251 JNI_ENTRY_CHECKED(void,
1252 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1253 jclass cls,
1254 jmethodID methodID,
1255 ...))
1256 functionEnter(thr);
1257 va_list args;
1258 IN_VM(
1259 jniCheck::validate_jmethod_id(thr, methodID);
1260 jniCheck::validate_class(thr, cls, false);
1261 )
1262 va_start(args,methodID);
1263 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1264 va_end(args);
1265 functionExit(env);
1266 JNI_END
1267
1268 JNI_ENTRY_CHECKED(void,
1269 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1270 jclass cls,
1271 jmethodID methodID,
1272 va_list args))
1273 functionEnter(thr);
1274 IN_VM(
1275 jniCheck::validate_jmethod_id(thr, methodID);
1276 jniCheck::validate_class(thr, cls, false);
1277 )
1278 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1279 functionExit(env);
1280 JNI_END
1281
1282 JNI_ENTRY_CHECKED(void,
1283 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1284 jclass cls,
1285 jmethodID methodID,
1286 const jvalue * args))
1287 functionEnter(thr);
1288 IN_VM(
1289 jniCheck::validate_jmethod_id(thr, methodID);
1290 jniCheck::validate_class(thr, cls, false);
1291 )
1292 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1293 functionExit(env);
1294 JNI_END
1295
1296 JNI_ENTRY_CHECKED(jfieldID,
1297 checked_jni_GetStaticFieldID(JNIEnv *env,
1298 jclass clazz,
1299 const char *name,
1300 const char *sig))
1301 functionEnter(thr);
1302 IN_VM(
1303 jniCheck::validate_class(thr, clazz, false);
1304 )
1305 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1306 functionExit(env);
1307 return result;
1308 JNI_END
1309
1310 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1311 JNI_ENTRY_CHECKED(ReturnType, \
1312 checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1313 jclass clazz, \
1314 jfieldID fieldID)) \
1315 functionEnter(thr); \
1316 IN_VM( \
1317 jniCheck::validate_class(thr, clazz, false); \
1318 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1319 ) \
1320 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1321 clazz, \
1322 fieldID); \
1323 functionExit(env); \
1324 return result; \
1325 JNI_END
1326
1327 WRAPPER_GetStaticField(jobject, Object, T_OBJECT)
1328 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1329 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE)
1330 WRAPPER_GetStaticField(jshort, Short, T_SHORT)
1331 WRAPPER_GetStaticField(jchar, Char, T_CHAR)
1332 WRAPPER_GetStaticField(jint, Int, T_INT)
1333 WRAPPER_GetStaticField(jlong, Long, T_LONG)
1334 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT)
1335 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE)
1336
1337 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1338 JNI_ENTRY_CHECKED(void, \
1339 checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1340 jclass clazz, \
1341 jfieldID fieldID, \
1342 ValueType value)) \
1343 functionEnter(thr); \
1344 IN_VM( \
1345 jniCheck::validate_class(thr, clazz, false); \
1346 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1347 ) \
1348 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1349 functionExit(env); \
1350 JNI_END
1351
1352 WRAPPER_SetStaticField(jobject, Object, T_OBJECT)
1353 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1354 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE)
1355 WRAPPER_SetStaticField(jshort, Short, T_SHORT)
1356 WRAPPER_SetStaticField(jchar, Char, T_CHAR)
1357 WRAPPER_SetStaticField(jint, Int, T_INT)
1358 WRAPPER_SetStaticField(jlong, Long, T_LONG)
1359 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT)
1360 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE)
1361
1362
1363 JNI_ENTRY_CHECKED(jstring,
1364 checked_jni_NewString(JNIEnv *env,
1365 const jchar *unicode,
1366 jsize len))
1367 functionEnter(thr);
1368 jstring result = UNCHECKED()->NewString(env,unicode,len);
1369 functionExit(env);
1370 return result;
1371 JNI_END
1372
1373 JNI_ENTRY_CHECKED(jsize,
1374 checked_jni_GetStringLength(JNIEnv *env,
1375 jstring str))
1376 functionEnter(thr);
1377 IN_VM(
1378 checkString(thr, str);
1379 )
1380 jsize result = UNCHECKED()->GetStringLength(env,str);
1381 functionExit(env);
1382 return result;
1383 JNI_END
1384
1385 // Arbitrary (but well-known) tag
1386 const void* STRING_TAG = (void*)0x47114711;
1387
1388 JNI_ENTRY_CHECKED(const jchar *,
1389 checked_jni_GetStringChars(JNIEnv *env,
1390 jstring str,
1391 jboolean *isCopy))
1392 functionEnter(thr);
1393 IN_VM(
1394 checkString(thr, str);
1395 )
1396 jchar* new_result = NULL;
1397 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1398 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1399 if (result != NULL) {
1400 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1401 len *= sizeof(jchar);
1402 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1403 if (new_result == NULL) {
1404 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1405 }
1406 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1407 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1408 FreeHeap((char*)result);
1409 }
1410 functionExit(env);
1411 return new_result;
1412 JNI_END
1413
1414 JNI_ENTRY_CHECKED(void,
1415 checked_jni_ReleaseStringChars(JNIEnv *env,
1416 jstring str,
1417 const jchar *chars))
1418 functionEnterExceptionAllowed(thr);
1419 IN_VM(
1420 checkString(thr, str);
1421 )
1422 if (chars == NULL) {
1423 // still do the unchecked call to allow dtrace probes
1424 UNCHECKED()->ReleaseStringChars(env,str,chars);
1425 }
1426 else {
1427 GuardedMemory guarded((void*)chars);
1428 if (guarded.verify_guards()) {
1429 tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1430 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1431 guarded.print_on(tty);
1432 NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1433 "release chars failed bounds check.");
1434 }
1435 if (guarded.get_tag() != STRING_TAG) {
1436 tty->print_cr("ReleaseStringChars: called on something not allocated "
1437 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1438 p2i(str), p2i(chars));
1439 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1440 "not allocated by GetStringChars");
1441 }
1442 UNCHECKED()->ReleaseStringChars(env, str,
1443 (const jchar*) guarded.release_for_freeing());
1444 }
1445 functionExit(env);
1446 JNI_END
1447
1448 JNI_ENTRY_CHECKED(jstring,
1449 checked_jni_NewStringUTF(JNIEnv *env,
1450 const char *utf))
1451 functionEnter(thr);
1452 jstring result = UNCHECKED()->NewStringUTF(env,utf);
1453 functionExit(env);
1454 return result;
1455 JNI_END
1456
1457 JNI_ENTRY_CHECKED(jsize,
1458 checked_jni_GetStringUTFLength(JNIEnv *env,
1459 jstring str))
1460 functionEnter(thr);
1461 IN_VM(
1462 checkString(thr, str);
1463 )
1464 jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1465 functionExit(env);
1466 return result;
1467 JNI_END
1468
1469 // Arbitrary (but well-known) tag - different than GetStringChars
1470 const void* STRING_UTF_TAG = (void*) 0x48124812;
1471
1472 JNI_ENTRY_CHECKED(const char *,
1473 checked_jni_GetStringUTFChars(JNIEnv *env,
1474 jstring str,
1475 jboolean *isCopy))
1476 functionEnter(thr);
1477 IN_VM(
1478 checkString(thr, str);
1479 )
1480 char* new_result = NULL;
1481 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1482 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1483 if (result != NULL) {
1484 size_t len = strlen(result) + 1; // + 1 for NULL termination
1485 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1486 if (new_result == NULL) {
1487 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1488 }
1489 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1490 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1491 FreeHeap((char*)result, mtInternal);
1492 }
1493 functionExit(env);
1494 return new_result;
1495 JNI_END
1496
1497 JNI_ENTRY_CHECKED(void,
1498 checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1499 jstring str,
1500 const char* chars))
1501 functionEnterExceptionAllowed(thr);
1502 IN_VM(
1503 checkString(thr, str);
1504 )
1505 if (chars == NULL) {
1506 // still do the unchecked call to allow dtrace probes
1507 UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1508 }
1509 else {
1510 GuardedMemory guarded((void*)chars);
1511 if (guarded.verify_guards()) {
1512 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1513 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1514 guarded.print_on(tty);
1515 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1516 "release chars failed bounds check.");
1517 }
1518 if (guarded.get_tag() != STRING_UTF_TAG) {
1519 tty->print_cr("ReleaseStringUTFChars: called on something not "
1520 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1521 PTR_FORMAT, p2i(str), p2i(chars));
1522 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1523 "called on something not allocated by GetStringUTFChars");
1524 }
1525 UNCHECKED()->ReleaseStringUTFChars(env, str,
1526 (const char*) guarded.release_for_freeing());
1527 }
1528 functionExit(env);
1529 JNI_END
1530
1531 JNI_ENTRY_CHECKED(jsize,
1532 checked_jni_GetArrayLength(JNIEnv *env,
1533 jarray array))
1534 functionEnter(thr);
1535 IN_VM(
1536 check_is_array(thr, array);
1537 )
1538 jsize result = UNCHECKED()->GetArrayLength(env,array);
1539 functionExit(env);
1540 return result;
1541 JNI_END
1542
1543 JNI_ENTRY_CHECKED(jobjectArray,
1544 checked_jni_NewObjectArray(JNIEnv *env,
1545 jsize len,
1546 jclass clazz,
1547 jobject init))
1548 functionEnter(thr);
1549 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1550 functionExit(env);
1551 return result;
1552 JNI_END
1553
1554 JNI_ENTRY_CHECKED(jobject,
1555 checked_jni_GetObjectArrayElement(JNIEnv *env,
1556 jobjectArray array,
1557 jsize index))
1558 functionEnter(thr);
1559 IN_VM(
1560 check_is_obj_array(thr, array);
1561 )
1562 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1563 functionExit(env);
1564 return result;
1565 JNI_END
1566
1567 JNI_ENTRY_CHECKED(void,
1568 checked_jni_SetObjectArrayElement(JNIEnv *env,
1569 jobjectArray array,
1570 jsize index,
1571 jobject val))
1572 functionEnter(thr);
1573 IN_VM(
1574 check_is_obj_array(thr, array);
1575 )
1576 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1577 functionExit(env);
1578 JNI_END
1579
1580 #define WRAPPER_NewScalarArray(Return, Result) \
1581 JNI_ENTRY_CHECKED(Return, \
1582 checked_jni_New##Result##Array(JNIEnv *env, \
1583 jsize len)) \
1584 functionEnter(thr); \
1585 Return result = UNCHECKED()->New##Result##Array(env,len); \
1586 functionExit(env); \
1587 return (Return) result; \
1588 JNI_END
1589
1590 WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1591 WRAPPER_NewScalarArray(jbyteArray, Byte)
1592 WRAPPER_NewScalarArray(jshortArray, Short)
1593 WRAPPER_NewScalarArray(jcharArray, Char)
1594 WRAPPER_NewScalarArray(jintArray, Int)
1595 WRAPPER_NewScalarArray(jlongArray, Long)
1596 WRAPPER_NewScalarArray(jfloatArray, Float)
1597 WRAPPER_NewScalarArray(jdoubleArray, Double)
1598
1599 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1600 JNI_ENTRY_CHECKED(ElementType *, \
1601 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1602 ElementType##Array array, \
1603 jboolean *isCopy)) \
1604 functionEnter(thr); \
1605 IN_VM( \
1606 check_primitive_array_type(thr, array, ElementTag); \
1607 ) \
1608 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1609 array, \
1610 isCopy); \
1611 if (result != NULL) { \
1612 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1613 } \
1614 functionExit(env); \
1615 return result; \
1616 JNI_END
1617
1618 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1619 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte)
1620 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short)
1621 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char)
1622 WRAPPER_GetScalarArrayElements(T_INT, jint, Int)
1623 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long)
1624 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float)
1625 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double)
1626
1627 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1628 JNI_ENTRY_CHECKED(void, \
1629 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1630 ElementType##Array array, \
1631 ElementType *elems, \
1632 jint mode)) \
1633 functionEnterExceptionAllowed(thr); \
1634 IN_VM( \
1635 check_primitive_array_type(thr, array, ElementTag); \
1636 ASSERT_OOPS_ALLOWED; \
1637 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1638 ) \
1639 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1640 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \
1641 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1642 functionExit(env); \
1643 JNI_END
1644
1645 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1646 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte)
1647 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short)
1648 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char)
1649 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int)
1650 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long)
1651 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float)
1652 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double)
1653
1654 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1655 JNI_ENTRY_CHECKED(void, \
1656 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1657 ElementType##Array array, \
1658 jsize start, \
1659 jsize len, \
1660 ElementType *buf)) \
1661 functionEnter(thr); \
1662 IN_VM( \
1663 check_primitive_array_type(thr, array, ElementTag); \
1664 ) \
1665 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1666 functionExit(env); \
1667 JNI_END
1668
1669 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1670 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte)
1671 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short)
1672 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char)
1673 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int)
1674 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long)
1675 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float)
1676 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1677
1678 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1679 JNI_ENTRY_CHECKED(void, \
1680 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1681 ElementType##Array array, \
1682 jsize start, \
1683 jsize len, \
1684 const ElementType *buf)) \
1685 functionEnter(thr); \
1686 IN_VM( \
1687 check_primitive_array_type(thr, array, ElementTag); \
1688 ) \
1689 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1690 functionExit(env); \
1691 JNI_END
1692
1693 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1694 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte)
1695 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short)
1696 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char)
1697 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int)
1698 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long)
1699 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float)
1700 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1701
1702 JNI_ENTRY_CHECKED(jint,
1703 checked_jni_RegisterNatives(JNIEnv *env,
1704 jclass clazz,
1705 const JNINativeMethod *methods,
1706 jint nMethods))
1707 functionEnter(thr);
1708 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1709 functionExit(env);
1710 return result;
1711 JNI_END
1712
1713 JNI_ENTRY_CHECKED(jint,
1714 checked_jni_UnregisterNatives(JNIEnv *env,
1715 jclass clazz))
1716 functionEnter(thr);
1717 jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1718 functionExit(env);
1719 return result;
1720 JNI_END
1721
1722 JNI_ENTRY_CHECKED(jint,
1723 checked_jni_MonitorEnter(JNIEnv *env,
1724 jobject obj))
1725 functionEnter(thr);
1726 IN_VM(
1727 jniCheck::validate_object(thr, obj);
1728 )
1729 jint result = UNCHECKED()->MonitorEnter(env,obj);
1730 functionExit(env);
1731 return result;
1732 JNI_END
1733
1734 JNI_ENTRY_CHECKED(jint,
1735 checked_jni_MonitorExit(JNIEnv *env,
1736 jobject obj))
1737 functionEnterExceptionAllowed(thr);
1738 IN_VM(
1739 jniCheck::validate_object(thr, obj);
1740 )
1741 jint result = UNCHECKED()->MonitorExit(env,obj);
1742 functionExit(env);
1743 return result;
1744 JNI_END
1745
1746 JNI_ENTRY_CHECKED(jint,
1747 checked_jni_GetJavaVM(JNIEnv *env,
1748 JavaVM **vm))
1749 functionEnter(thr);
1750 jint result = UNCHECKED()->GetJavaVM(env,vm);
1751 functionExit(env);
1752 return result;
1753 JNI_END
1754
1755 JNI_ENTRY_CHECKED(void,
1756 checked_jni_GetStringRegion(JNIEnv *env,
1757 jstring str,
1758 jsize start,
1759 jsize len,
1760 jchar *buf))
1761 functionEnter(thr);
1762 IN_VM(
1763 checkString(thr, str);
1764 )
1765 UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1766 functionExit(env);
1767 JNI_END
1768
1769 JNI_ENTRY_CHECKED(void,
1770 checked_jni_GetStringUTFRegion(JNIEnv *env,
1771 jstring str,
1772 jsize start,
1773 jsize len,
1774 char *buf))
1775 functionEnter(thr);
1776 IN_VM(
1777 checkString(thr, str);
1778 )
1779 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1780 functionExit(env);
1781 JNI_END
1782
1783 JNI_ENTRY_CHECKED(void *,
1784 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1785 jarray array,
1786 jboolean *isCopy))
1787 functionEnterCritical(thr);
1788 IN_VM(
1789 check_is_primitive_array(thr, array);
1790 )
1791 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1792 if (result != NULL) {
1793 result = check_jni_wrap_copy_array(thr, array, result);
1794 }
1795 functionExit(env);
1796 return result;
1797 JNI_END
1798
1799 JNI_ENTRY_CHECKED(void,
1800 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1801 jarray array,
1802 void *carray,
1803 jint mode))
1804 functionEnterCriticalExceptionAllowed(thr);
1805 IN_VM(
1806 check_is_primitive_array(thr, array);
1807 )
1808 // Check the element array...
1809 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);
1810 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1811 functionExit(env);
1812 JNI_END
1813
1814 JNI_ENTRY_CHECKED(const jchar*,
1815 checked_jni_GetStringCritical(JNIEnv *env,
1816 jstring string,
1817 jboolean *isCopy))
1818 functionEnterCritical(thr);
1819 IN_VM(
1820 checkString(thr, string);
1821 )
1822 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1823 functionExit(env);
1824 return result;
1825 JNI_END
1826
1827 JNI_ENTRY_CHECKED(void,
1828 checked_jni_ReleaseStringCritical(JNIEnv *env,
1829 jstring str,
1830 const jchar *chars))
1831 functionEnterCriticalExceptionAllowed(thr);
1832 IN_VM(
1833 checkString(thr, str);
1834 )
1835 /* The Hotspot JNI code does not use the parameters, so just check the
1836 * string parameter as a minor sanity check
1837 */
1838 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1839 functionExit(env);
1840 JNI_END
1841
1842 JNI_ENTRY_CHECKED(jweak,
1843 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1844 jobject obj))
1845 functionEnter(thr);
1846 IN_VM(
1847 if (obj != NULL) {
1848 jniCheck::validate_handle(thr, obj);
1849 }
1850 )
1851 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1852 functionExit(env);
1853 return result;
1854 JNI_END
1855
1856 JNI_ENTRY_CHECKED(void,
1857 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1858 jweak ref))
1859 functionEnterExceptionAllowed(thr);
1860 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1861 functionExit(env);
1862 JNI_END
1863
1864 JNI_ENTRY_CHECKED(jboolean,
1865 checked_jni_ExceptionCheck(JNIEnv *env))
1866 functionEnterExceptionAllowed(thr);
1867 jboolean result = UNCHECKED()->ExceptionCheck(env);
1868 functionExit(env);
1869 return result;
1870 JNI_END
1871
1872 JNI_ENTRY_CHECKED(jobject,
1873 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1874 void *address,
1875 jlong capacity))
1876 functionEnter(thr);
1877 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1878 functionExit(env);
1879 return result;
1880 JNI_END
1881
1882 JNI_ENTRY_CHECKED(void *,
1883 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1884 jobject buf))
1885 functionEnter(thr);
1886 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1887 functionExit(env);
1888 return result;
1889 JNI_END
1890
1891 JNI_ENTRY_CHECKED(jlong,
1892 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1893 jobject buf))
1894 functionEnter(thr);
1895 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1896 functionExit(env);
1897 return result;
1898 JNI_END
1899
1900 JNI_ENTRY_CHECKED(jobjectRefType,
1901 checked_jni_GetObjectRefType(JNIEnv *env,
1902 jobject obj))
1903 functionEnter(thr);
1904 /* validate the object being passed */
1905 IN_VM(
1906 jniCheck::validate_object(thr, obj);
1907 )
1908 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1909 functionExit(env);
1910 return result;
1911 JNI_END
1912
1913
1914 JNI_ENTRY_CHECKED(jint,
1915 checked_jni_GetVersion(JNIEnv *env))
1916 functionEnter(thr);
1917 jint result = UNCHECKED()->GetVersion(env);
1918 functionExit(env);
1919 return result;
1920 JNI_END
1921
1922
1923
1924 /*
1925 * Structure containing all checked jni functions
1926 */
1927 struct JNINativeInterface_ checked_jni_NativeInterface = {
1928 NULL,
1929 NULL,
1930 NULL,
1931
1932 NULL,
1933
1934 checked_jni_GetVersion,
1935
1936 checked_jni_DefineClass,
1937 checked_jni_FindClass,
1938
|
36 #include "runtime/handles.hpp"
37 #include "runtime/interfaceSupport.hpp"
38 #include "runtime/jfieldIDWorkaround.hpp"
39 #include "runtime/thread.inline.hpp"
40 #ifdef TARGET_ARCH_x86
41 # include "jniTypes_x86.hpp"
42 #endif
43 #ifdef TARGET_ARCH_sparc
44 # include "jniTypes_sparc.hpp"
45 #endif
46 #ifdef TARGET_ARCH_zero
47 # include "jniTypes_zero.hpp"
48 #endif
49 #ifdef TARGET_ARCH_arm
50 # include "jniTypes_arm.hpp"
51 #endif
52 #ifdef TARGET_ARCH_ppc
53 # include "jniTypes_ppc.hpp"
54 #endif
55
56 // Complain every extra number of unplanned local refs
57 #define CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD 32
58
59 // Heap objects are allowed to be directly referenced only in VM code,
60 // not in native code.
61
62 #define ASSERT_OOPS_ALLOWED \
63 assert(JavaThread::current()->thread_state() == _thread_in_vm, \
64 "jniCheck examining oops in bad state.")
65
66
67 // Execute the given block of source code with the thread in VM state.
68 // To do this, transition from the NATIVE state to the VM state, execute
69 // the code, and transtition back. The ThreadInVMfromNative constructor
70 // performs the transition to VM state, its destructor restores the
71 // NATIVE state.
72
73 #define IN_VM(source_code) { \
74 { \
75 ThreadInVMfromNative __tiv(thr); \
76 source_code \
77 } \
153 // When in NATIVE state:
154 static void NativeReportJNIFatalError(JavaThread* thr, const char *msg) {
155 IN_VM(
156 ReportJNIFatalError(thr, msg);
157 )
158 }
159
160 static void NativeReportJNIWarning(JavaThread* thr, const char *msg) {
161 IN_VM(
162 ReportJNIWarning(thr, msg);
163 )
164 }
165
166
167
168
169 /*
170 * SUPPORT FUNCTIONS
171 */
172
173 /**
174 * Check whether or not a programmer has actually checked for exceptions. According
175 * to the JNI Specification ("jni/spec/design.html#java_exceptions"):
176 *
177 * There are two cases where the programmer needs to check for exceptions without
178 * being able to first check an error code:
179 *
180 * - The JNI functions that invoke a Java method return the result of the Java method.
181 * The programmer must call ExceptionOccurred() to check for possible exceptions
182 * that occurred during the execution of the Java method.
183 *
184 * - Some of the JNI array access functions do not return an error code, but may
185 * throw an ArrayIndexOutOfBoundsException or ArrayStoreException.
186 *
187 * In all other cases, a non-error return value guarantees that no exceptions have been thrown.
188 */
189 static inline void
190 check_pending_exception(JavaThread* thr) {
191 if (thr->has_pending_exception()) {
192 NativeReportJNIWarning(thr, "JNI call made with exception pending");
193 }
194 if (thr->is_pending_jni_exception_check()) {
195 IN_VM(
196 tty->print_cr("WARNING in native method: JNI call made without checking exceptions when required to from %s",
197 thr->get_pending_jni_exception_check());
198 thr->print_stack();
199 )
200 thr->clear_pending_jni_exception_check(); // Just complain once
201 }
202 }
203
204
205 static inline void
206 functionEnterCritical(JavaThread* thr)
207 {
208 check_pending_exception(thr);
209 }
210
211 static inline void
212 functionEnterCriticalExceptionAllowed(JavaThread* thr)
213 {
214 }
215
216 static inline void
217 functionEnter(JavaThread* thr)
218 {
219 if (thr->in_critical()) {
220 tty->print_cr("%s", warn_other_function_in_critical);
221 }
222 check_pending_exception(thr);
223 }
224
225 static inline void
226 functionEnterExceptionAllowed(JavaThread* thr)
227 {
228 if (thr->in_critical()) {
229 tty->print_cr("%s", warn_other_function_in_critical);
230 }
231 }
232
233 static inline void
234 functionExit(JavaThread* thr)
235 {
236 JNIHandleBlock* handles = thr->active_handles();
237 size_t planned_capacity = handles->get_planned_capacity();
238 size_t live_handles = handles->get_number_of_live_handles();
239 if (live_handles > planned_capacity) {
240 IN_VM(
241 tty->print_cr("WARNING: JNI local refs: %zu, exceeds capacity: %zu",
242 live_handles, planned_capacity);
243 thr->print_stack();
244 )
245 // Complain just the once, reset to current + warn threshold
246 handles->set_planned_capacity(live_handles + CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
247 }
248 }
249
250 static inline void
251 checkStaticFieldID(JavaThread* thr, jfieldID fid, jclass cls, int ftype)
252 {
253 fieldDescriptor fd;
254
255 /* make sure it is a static field */
256 if (!jfieldIDWorkaround::is_static_jfieldID(fid))
257 ReportJNIFatalError(thr, fatal_should_be_static);
258
259 /* validate the class being passed */
260 ASSERT_OOPS_ALLOWED;
261 Klass* k_oop = jniCheck::validate_class(thr, cls, false);
262
263 /* check for proper subclass hierarchy */
264 JNIid* id = jfieldIDWorkaround::from_static_jfieldID(fid);
265 Klass* f_oop = id->holder();
266 if (!InstanceKlass::cast(k_oop)->is_subtype_of(f_oop))
267 ReportJNIFatalError(thr, fatal_wrong_static_field);
532 jniCheck::validate_jmethod_id(thr, method_id);
533 jniCheck::validate_class(thr, clazz, false);
534 }
535
536
537 /*
538 * IMPLEMENTATION OF FUNCTIONS IN CHECKED TABLE
539 */
540
541 JNI_ENTRY_CHECKED(jclass,
542 checked_jni_DefineClass(JNIEnv *env,
543 const char *name,
544 jobject loader,
545 const jbyte *buf,
546 jsize len))
547 functionEnter(thr);
548 IN_VM(
549 jniCheck::validate_object(thr, loader);
550 )
551 jclass result = UNCHECKED()->DefineClass(env, name, loader, buf, len);
552 functionExit(thr);
553 return result;
554 JNI_END
555
556 JNI_ENTRY_CHECKED(jclass,
557 checked_jni_FindClass(JNIEnv *env,
558 const char *name))
559 functionEnter(thr);
560 IN_VM(
561 jniCheck::validate_class_descriptor(thr, name);
562 )
563 jclass result = UNCHECKED()->FindClass(env, name);
564 functionExit(thr);
565 return result;
566 JNI_END
567
568 JNI_ENTRY_CHECKED(jmethodID,
569 checked_jni_FromReflectedMethod(JNIEnv *env,
570 jobject method))
571 functionEnter(thr);
572 IN_VM(
573 jniCheck::validate_object(thr, method);
574 )
575 jmethodID result = UNCHECKED()->FromReflectedMethod(env, method);
576 functionExit(thr);
577 return result;
578 JNI_END
579
580 JNI_ENTRY_CHECKED(jfieldID,
581 checked_jni_FromReflectedField(JNIEnv *env,
582 jobject field))
583 functionEnter(thr);
584 IN_VM(
585 jniCheck::validate_object(thr, field);
586 )
587 jfieldID result = UNCHECKED()->FromReflectedField(env, field);
588 functionExit(thr);
589 return result;
590 JNI_END
591
592 JNI_ENTRY_CHECKED(jobject,
593 checked_jni_ToReflectedMethod(JNIEnv *env,
594 jclass cls,
595 jmethodID methodID,
596 jboolean isStatic))
597 functionEnter(thr);
598 IN_VM(
599 jniCheck::validate_class(thr, cls, false);
600 jniCheck::validate_jmethod_id(thr, methodID);
601 )
602 jobject result = UNCHECKED()->ToReflectedMethod(env, cls, methodID,
603 isStatic);
604 functionExit(thr);
605 return result;
606 JNI_END
607
608 JNI_ENTRY_CHECKED(jclass,
609 checked_jni_GetSuperclass(JNIEnv *env,
610 jclass sub))
611 functionEnter(thr);
612 IN_VM(
613 jniCheck::validate_class(thr, sub, true);
614 )
615 jclass result = UNCHECKED()->GetSuperclass(env, sub);
616 functionExit(thr);
617 return result;
618 JNI_END
619
620 JNI_ENTRY_CHECKED(jboolean,
621 checked_jni_IsAssignableFrom(JNIEnv *env,
622 jclass sub,
623 jclass sup))
624 functionEnter(thr);
625 IN_VM(
626 jniCheck::validate_class(thr, sub, true);
627 jniCheck::validate_class(thr, sup, true);
628 )
629 jboolean result = UNCHECKED()->IsAssignableFrom(env, sub, sup);
630 functionExit(thr);
631 return result;
632 JNI_END
633
634 JNI_ENTRY_CHECKED(jobject,
635 checked_jni_ToReflectedField(JNIEnv *env,
636 jclass cls,
637 jfieldID fieldID,
638 jboolean isStatic))
639 functionEnter(thr);
640 IN_VM(
641 jniCheck::validate_class(thr, cls, false);
642 )
643 jobject result = UNCHECKED()->ToReflectedField(env, cls, fieldID,
644 isStatic);
645 functionExit(thr);
646 return result;
647 JNI_END
648
649 JNI_ENTRY_CHECKED(jint,
650 checked_jni_Throw(JNIEnv *env,
651 jthrowable obj))
652 functionEnter(thr);
653 IN_VM(
654 oop oopObj = jniCheck::validate_object(thr, obj);
655 if (oopObj == NULL) {
656 // Unchecked Throw tolerates a NULL obj, so just warn
657 ReportJNIWarning(thr, "JNI Throw called with NULL throwable");
658 } else {
659 jniCheck::validate_throwable_klass(thr, oopObj->klass());
660 }
661 )
662 jint result = UNCHECKED()->Throw(env, obj);
663 functionExit(thr);
664 return result;
665 JNI_END
666
667 JNI_ENTRY_CHECKED(jint,
668 checked_jni_ThrowNew(JNIEnv *env,
669 jclass clazz,
670 const char *msg))
671 functionEnter(thr);
672 IN_VM(
673 Klass* k = jniCheck::validate_class(thr, clazz, false);
674 assert(k != NULL, "validate_class shouldn't return NULL Klass*");
675 jniCheck::validate_throwable_klass(thr, k);
676 )
677 jint result = UNCHECKED()->ThrowNew(env, clazz, msg);
678 functionExit(thr);
679 return result;
680 JNI_END
681
682 JNI_ENTRY_CHECKED(jthrowable,
683 checked_jni_ExceptionOccurred(JNIEnv *env))
684 thr->clear_pending_jni_exception_check();
685 functionEnterExceptionAllowed(thr);
686 jthrowable result = UNCHECKED()->ExceptionOccurred(env);
687 functionExit(thr);
688 return result;
689 JNI_END
690
691 JNI_ENTRY_CHECKED(void,
692 checked_jni_ExceptionDescribe(JNIEnv *env))
693 functionEnterExceptionAllowed(thr);
694 UNCHECKED()->ExceptionDescribe(env);
695 functionExit(thr);
696 JNI_END
697
698 JNI_ENTRY_CHECKED(void,
699 checked_jni_ExceptionClear(JNIEnv *env))
700 thr->clear_pending_jni_exception_check();
701 functionEnterExceptionAllowed(thr);
702 UNCHECKED()->ExceptionClear(env);
703 functionExit(thr);
704 JNI_END
705
706 JNI_ENTRY_CHECKED(void,
707 checked_jni_FatalError(JNIEnv *env,
708 const char *msg))
709 thr->clear_pending_jni_exception_check();
710 functionEnter(thr);
711 UNCHECKED()->FatalError(env, msg);
712 functionExit(thr);
713 JNI_END
714
715 JNI_ENTRY_CHECKED(jint,
716 checked_jni_PushLocalFrame(JNIEnv *env,
717 jint capacity))
718 functionEnterExceptionAllowed(thr);
719 if (capacity < 0)
720 NativeReportJNIFatalError(thr, "negative capacity");
721 jint result = UNCHECKED()->PushLocalFrame(env, capacity);
722 if (result == JNI_OK) {
723 thr->active_handles()->set_planned_capacity(capacity + CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
724 }
725 functionExit(thr);
726 return result;
727 JNI_END
728
729 JNI_ENTRY_CHECKED(jobject,
730 checked_jni_PopLocalFrame(JNIEnv *env,
731 jobject result))
732 functionEnterExceptionAllowed(thr);
733 jobject res = UNCHECKED()->PopLocalFrame(env, result);
734 functionExit(thr);
735 return res;
736 JNI_END
737
738 JNI_ENTRY_CHECKED(jobject,
739 checked_jni_NewGlobalRef(JNIEnv *env,
740 jobject lobj))
741 functionEnter(thr);
742 IN_VM(
743 if (lobj != NULL) {
744 jniCheck::validate_handle(thr, lobj);
745 }
746 )
747 jobject result = UNCHECKED()->NewGlobalRef(env,lobj);
748 functionExit(thr);
749 return result;
750 JNI_END
751
752 JNI_ENTRY_CHECKED(void,
753 checked_jni_DeleteGlobalRef(JNIEnv *env,
754 jobject gref))
755 functionEnterExceptionAllowed(thr);
756 IN_VM(
757 jniCheck::validate_object(thr, gref);
758 if (gref && !JNIHandles::is_global_handle(gref)) {
759 ReportJNIFatalError(thr,
760 "Invalid global JNI handle passed to DeleteGlobalRef");
761 }
762 )
763 UNCHECKED()->DeleteGlobalRef(env,gref);
764 functionExit(thr);
765 JNI_END
766
767 JNI_ENTRY_CHECKED(void,
768 checked_jni_DeleteLocalRef(JNIEnv *env,
769 jobject obj))
770 functionEnterExceptionAllowed(thr);
771 IN_VM(
772 jniCheck::validate_object(thr, obj);
773 if (obj && !(JNIHandles::is_local_handle(thr, obj) ||
774 JNIHandles::is_frame_handle(thr, obj)))
775 ReportJNIFatalError(thr,
776 "Invalid local JNI handle passed to DeleteLocalRef");
777 )
778 UNCHECKED()->DeleteLocalRef(env, obj);
779 functionExit(thr);
780 JNI_END
781
782 JNI_ENTRY_CHECKED(jboolean,
783 checked_jni_IsSameObject(JNIEnv *env,
784 jobject obj1,
785 jobject obj2))
786 functionEnterExceptionAllowed(thr);
787 IN_VM(
788 /* This JNI function can be used to compare weak global references
789 * to NULL objects. If the handles are valid, but contain NULL,
790 * then don't attempt to validate the object.
791 */
792 if (obj1 != NULL && jniCheck::validate_handle(thr, obj1) != NULL) {
793 jniCheck::validate_object(thr, obj1);
794 }
795 if (obj2 != NULL && jniCheck::validate_handle(thr, obj2) != NULL) {
796 jniCheck::validate_object(thr, obj2);
797 }
798 )
799 jboolean result = UNCHECKED()->IsSameObject(env,obj1,obj2);
800 functionExit(thr);
801 return result;
802 JNI_END
803
804 JNI_ENTRY_CHECKED(jobject,
805 checked_jni_NewLocalRef(JNIEnv *env,
806 jobject ref))
807 functionEnter(thr);
808 IN_VM(
809 if (ref != NULL) {
810 jniCheck::validate_handle(thr, ref);
811 }
812 )
813 jobject result = UNCHECKED()->NewLocalRef(env, ref);
814 functionExit(thr);
815 return result;
816 JNI_END
817
818 JNI_ENTRY_CHECKED(jint,
819 checked_jni_EnsureLocalCapacity(JNIEnv *env,
820 jint capacity))
821 functionEnter(thr);
822 if (capacity < 0) {
823 NativeReportJNIFatalError(thr, "negative capacity");
824 }
825 jint result = UNCHECKED()->EnsureLocalCapacity(env, capacity);
826 if (result == JNI_OK) {
827 thr->active_handles()->set_planned_capacity(capacity + CHECK_JNI_LOCAL_REF_CAP_WARN_THRESHOLD);
828 }
829 functionExit(thr);
830 return result;
831 JNI_END
832
833 JNI_ENTRY_CHECKED(jobject,
834 checked_jni_AllocObject(JNIEnv *env,
835 jclass clazz))
836 functionEnter(thr);
837 IN_VM(
838 jniCheck::validate_class(thr, clazz, false);
839 )
840 jobject result = UNCHECKED()->AllocObject(env,clazz);
841 functionExit(thr);
842 return result;
843 JNI_END
844
845 JNI_ENTRY_CHECKED(jobject,
846 checked_jni_NewObject(JNIEnv *env,
847 jclass clazz,
848 jmethodID methodID,
849 ...))
850 functionEnter(thr);
851 va_list args;
852 IN_VM(
853 jniCheck::validate_class(thr, clazz, false);
854 jniCheck::validate_jmethod_id(thr, methodID);
855 )
856 va_start(args, methodID);
857 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
858 va_end(args);
859 functionExit(thr);
860 return result;
861 JNI_END
862
863 JNI_ENTRY_CHECKED(jobject,
864 checked_jni_NewObjectV(JNIEnv *env,
865 jclass clazz,
866 jmethodID methodID,
867 va_list args))
868 functionEnter(thr);
869 IN_VM(
870 jniCheck::validate_class(thr, clazz, false);
871 jniCheck::validate_jmethod_id(thr, methodID);
872 )
873 jobject result = UNCHECKED()->NewObjectV(env,clazz,methodID,args);
874 functionExit(thr);
875 return result;
876 JNI_END
877
878 JNI_ENTRY_CHECKED(jobject,
879 checked_jni_NewObjectA(JNIEnv *env,
880 jclass clazz,
881 jmethodID methodID,
882 const jvalue *args))
883 functionEnter(thr);
884 IN_VM(
885 jniCheck::validate_class(thr, clazz, false);
886 jniCheck::validate_jmethod_id(thr, methodID);
887 )
888 jobject result = UNCHECKED()->NewObjectA(env,clazz,methodID,args);
889 functionExit(thr);
890 return result;
891 JNI_END
892
893 JNI_ENTRY_CHECKED(jclass,
894 checked_jni_GetObjectClass(JNIEnv *env,
895 jobject obj))
896 functionEnter(thr);
897 IN_VM(
898 jniCheck::validate_object(thr, obj);
899 )
900 jclass result = UNCHECKED()->GetObjectClass(env,obj);
901 functionExit(thr);
902 return result;
903 JNI_END
904
905 JNI_ENTRY_CHECKED(jboolean,
906 checked_jni_IsInstanceOf(JNIEnv *env,
907 jobject obj,
908 jclass clazz))
909 functionEnter(thr);
910 IN_VM(
911 jniCheck::validate_object(thr, obj);
912 jniCheck::validate_class(thr, clazz, true);
913 )
914 jboolean result = UNCHECKED()->IsInstanceOf(env,obj,clazz);
915 functionExit(thr);
916 return result;
917 JNI_END
918
919 JNI_ENTRY_CHECKED(jmethodID,
920 checked_jni_GetMethodID(JNIEnv *env,
921 jclass clazz,
922 const char *name,
923 const char *sig))
924 functionEnter(thr);
925 IN_VM(
926 jniCheck::validate_class(thr, clazz, false);
927 )
928 jmethodID result = UNCHECKED()->GetMethodID(env,clazz,name,sig);
929 functionExit(thr);
930 return result;
931 JNI_END
932
933 #define WRAPPER_CallMethod(ResultType, Result) \
934 JNI_ENTRY_CHECKED(ResultType, \
935 checked_jni_Call##Result##Method(JNIEnv *env, \
936 jobject obj, \
937 jmethodID methodID, \
938 ...)) \
939 functionEnter(thr); \
940 va_list args; \
941 IN_VM( \
942 jniCheck::validate_call_object(thr, obj, methodID); \
943 ) \
944 va_start(args,methodID); \
945 ResultType result =UNCHECKED()->Call##Result##MethodV(env, obj, methodID, \
946 args); \
947 va_end(args); \
948 thr->set_pending_jni_exception_check("Call"#Result"Method"); \
949 functionExit(thr); \
950 return result; \
951 JNI_END \
952 \
953 JNI_ENTRY_CHECKED(ResultType, \
954 checked_jni_Call##Result##MethodV(JNIEnv *env, \
955 jobject obj, \
956 jmethodID methodID, \
957 va_list args)) \
958 functionEnter(thr); \
959 IN_VM(\
960 jniCheck::validate_call_object(thr, obj, methodID); \
961 ) \
962 ResultType result = UNCHECKED()->Call##Result##MethodV(env, obj, methodID,\
963 args); \
964 thr->set_pending_jni_exception_check("Call"#Result"MethodV"); \
965 functionExit(thr); \
966 return result; \
967 JNI_END \
968 \
969 JNI_ENTRY_CHECKED(ResultType, \
970 checked_jni_Call##Result##MethodA(JNIEnv *env, \
971 jobject obj, \
972 jmethodID methodID, \
973 const jvalue * args)) \
974 functionEnter(thr); \
975 IN_VM( \
976 jniCheck::validate_call_object(thr, obj, methodID); \
977 ) \
978 ResultType result = UNCHECKED()->Call##Result##MethodA(env, obj, methodID,\
979 args); \
980 thr->set_pending_jni_exception_check("Call"#Result"MethodA"); \
981 functionExit(thr); \
982 return result; \
983 JNI_END
984
985 WRAPPER_CallMethod(jobject,Object)
986 WRAPPER_CallMethod(jboolean,Boolean)
987 WRAPPER_CallMethod(jbyte,Byte)
988 WRAPPER_CallMethod(jshort,Short)
989 WRAPPER_CallMethod(jchar,Char)
990 WRAPPER_CallMethod(jint,Int)
991 WRAPPER_CallMethod(jlong,Long)
992 WRAPPER_CallMethod(jfloat,Float)
993 WRAPPER_CallMethod(jdouble,Double)
994
995 JNI_ENTRY_CHECKED(void,
996 checked_jni_CallVoidMethod(JNIEnv *env, \
997 jobject obj, \
998 jmethodID methodID, \
999 ...))
1000 functionEnter(thr);
1001 va_list args;
1002 IN_VM(
1003 jniCheck::validate_call_object(thr, obj, methodID);
1004 )
1005 va_start(args,methodID);
1006 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1007 va_end(args);
1008 thr->set_pending_jni_exception_check("CallVoidMethod");
1009 functionExit(thr);
1010 JNI_END
1011
1012 JNI_ENTRY_CHECKED(void,
1013 checked_jni_CallVoidMethodV(JNIEnv *env,
1014 jobject obj,
1015 jmethodID methodID,
1016 va_list args))
1017 functionEnter(thr);
1018 IN_VM(
1019 jniCheck::validate_call_object(thr, obj, methodID);
1020 )
1021 UNCHECKED()->CallVoidMethodV(env,obj,methodID,args);
1022 thr->set_pending_jni_exception_check("CallVoidMethodV");
1023 functionExit(thr);
1024 JNI_END
1025
1026 JNI_ENTRY_CHECKED(void,
1027 checked_jni_CallVoidMethodA(JNIEnv *env,
1028 jobject obj,
1029 jmethodID methodID,
1030 const jvalue * args))
1031 functionEnter(thr);
1032 IN_VM(
1033 jniCheck::validate_call_object(thr, obj, methodID);
1034 )
1035 UNCHECKED()->CallVoidMethodA(env,obj,methodID,args);
1036 thr->set_pending_jni_exception_check("CallVoidMethodA");
1037 functionExit(thr);
1038 JNI_END
1039
1040 #define WRAPPER_CallNonvirtualMethod(ResultType, Result) \
1041 JNI_ENTRY_CHECKED(ResultType, \
1042 checked_jni_CallNonvirtual##Result##Method(JNIEnv *env, \
1043 jobject obj, \
1044 jclass clazz, \
1045 jmethodID methodID, \
1046 ...)) \
1047 functionEnter(thr); \
1048 va_list args; \
1049 IN_VM( \
1050 jniCheck::validate_call_object(thr, obj, methodID); \
1051 jniCheck::validate_call_class(thr, clazz, methodID); \
1052 ) \
1053 va_start(args,methodID); \
1054 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1055 obj, \
1056 clazz, \
1057 methodID,\
1058 args); \
1059 va_end(args); \
1060 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"Method"); \
1061 functionExit(thr); \
1062 return result; \
1063 JNI_END \
1064 \
1065 JNI_ENTRY_CHECKED(ResultType, \
1066 checked_jni_CallNonvirtual##Result##MethodV(JNIEnv *env, \
1067 jobject obj, \
1068 jclass clazz, \
1069 jmethodID methodID, \
1070 va_list args)) \
1071 functionEnter(thr); \
1072 IN_VM( \
1073 jniCheck::validate_call_object(thr, obj, methodID); \
1074 jniCheck::validate_call_class(thr, clazz, methodID); \
1075 ) \
1076 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodV(env, \
1077 obj, \
1078 clazz, \
1079 methodID,\
1080 args); \
1081 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodV"); \
1082 functionExit(thr); \
1083 return result; \
1084 JNI_END \
1085 \
1086 JNI_ENTRY_CHECKED(ResultType, \
1087 checked_jni_CallNonvirtual##Result##MethodA(JNIEnv *env, \
1088 jobject obj, \
1089 jclass clazz, \
1090 jmethodID methodID, \
1091 const jvalue * args)) \
1092 functionEnter(thr); \
1093 IN_VM( \
1094 jniCheck::validate_call_object(thr, obj, methodID); \
1095 jniCheck::validate_call_class(thr, clazz, methodID); \
1096 ) \
1097 ResultType result = UNCHECKED()->CallNonvirtual##Result##MethodA(env, \
1098 obj, \
1099 clazz, \
1100 methodID,\
1101 args); \
1102 thr->set_pending_jni_exception_check("CallNonvirtual"#Result"MethodA"); \
1103 functionExit(thr); \
1104 return result; \
1105 JNI_END
1106
1107 WRAPPER_CallNonvirtualMethod(jobject,Object)
1108 WRAPPER_CallNonvirtualMethod(jboolean,Boolean)
1109 WRAPPER_CallNonvirtualMethod(jbyte,Byte)
1110 WRAPPER_CallNonvirtualMethod(jshort,Short)
1111 WRAPPER_CallNonvirtualMethod(jchar,Char)
1112 WRAPPER_CallNonvirtualMethod(jint,Int)
1113 WRAPPER_CallNonvirtualMethod(jlong,Long)
1114 WRAPPER_CallNonvirtualMethod(jfloat,Float)
1115 WRAPPER_CallNonvirtualMethod(jdouble,Double)
1116
1117 JNI_ENTRY_CHECKED(void,
1118 checked_jni_CallNonvirtualVoidMethod(JNIEnv *env,
1119 jobject obj,
1120 jclass clazz,
1121 jmethodID methodID,
1122 ...))
1123 functionEnter(thr);
1124 va_list args;
1125 IN_VM(
1126 jniCheck::validate_call_object(thr, obj, methodID);
1127 jniCheck::validate_call_class(thr, clazz, methodID);
1128 )
1129 va_start(args,methodID);
1130 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1131 va_end(args);
1132 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethod");
1133 functionExit(thr);
1134 JNI_END
1135
1136 JNI_ENTRY_CHECKED(void,
1137 checked_jni_CallNonvirtualVoidMethodV(JNIEnv *env,
1138 jobject obj,
1139 jclass clazz,
1140 jmethodID methodID,
1141 va_list args))
1142 functionEnter(thr);
1143 IN_VM(
1144 jniCheck::validate_call_object(thr, obj, methodID);
1145 jniCheck::validate_call_class(thr, clazz, methodID);
1146 )
1147 UNCHECKED()->CallNonvirtualVoidMethodV(env,obj,clazz,methodID,args);
1148 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodV");
1149 functionExit(thr);
1150 JNI_END
1151
1152 JNI_ENTRY_CHECKED(void,
1153 checked_jni_CallNonvirtualVoidMethodA(JNIEnv *env,
1154 jobject obj,
1155 jclass clazz,
1156 jmethodID methodID,
1157 const jvalue * args))
1158 functionEnter(thr);
1159 IN_VM(
1160 jniCheck::validate_call_object(thr, obj, methodID);
1161 jniCheck::validate_call_class(thr, clazz, methodID);
1162 )
1163 UNCHECKED()->CallNonvirtualVoidMethodA(env,obj,clazz,methodID,args);
1164 thr->set_pending_jni_exception_check("CallNonvirtualVoidMethodA");
1165 functionExit(thr);
1166 JNI_END
1167
1168 JNI_ENTRY_CHECKED(jfieldID,
1169 checked_jni_GetFieldID(JNIEnv *env,
1170 jclass clazz,
1171 const char *name,
1172 const char *sig))
1173 functionEnter(thr);
1174 IN_VM(
1175 jniCheck::validate_class(thr, clazz, false);
1176 )
1177 jfieldID result = UNCHECKED()->GetFieldID(env,clazz,name,sig);
1178 functionExit(thr);
1179 return result;
1180 JNI_END
1181
1182 #define WRAPPER_GetField(ReturnType,Result,FieldType) \
1183 JNI_ENTRY_CHECKED(ReturnType, \
1184 checked_jni_Get##Result##Field(JNIEnv *env, \
1185 jobject obj, \
1186 jfieldID fieldID)) \
1187 functionEnter(thr); \
1188 IN_VM( \
1189 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1190 ) \
1191 ReturnType result = UNCHECKED()->Get##Result##Field(env,obj,fieldID); \
1192 functionExit(thr); \
1193 return result; \
1194 JNI_END
1195
1196 WRAPPER_GetField(jobject, Object, T_OBJECT)
1197 WRAPPER_GetField(jboolean, Boolean, T_BOOLEAN)
1198 WRAPPER_GetField(jbyte, Byte, T_BYTE)
1199 WRAPPER_GetField(jshort, Short, T_SHORT)
1200 WRAPPER_GetField(jchar, Char, T_CHAR)
1201 WRAPPER_GetField(jint, Int, T_INT)
1202 WRAPPER_GetField(jlong, Long, T_LONG)
1203 WRAPPER_GetField(jfloat, Float, T_FLOAT)
1204 WRAPPER_GetField(jdouble, Double, T_DOUBLE)
1205
1206 #define WRAPPER_SetField(ValueType,Result,FieldType) \
1207 JNI_ENTRY_CHECKED(void, \
1208 checked_jni_Set##Result##Field(JNIEnv *env, \
1209 jobject obj, \
1210 jfieldID fieldID, \
1211 ValueType val)) \
1212 functionEnter(thr); \
1213 IN_VM( \
1214 checkInstanceFieldID(thr, fieldID, obj, FieldType); \
1215 ) \
1216 UNCHECKED()->Set##Result##Field(env,obj,fieldID,val); \
1217 functionExit(thr); \
1218 JNI_END
1219
1220 WRAPPER_SetField(jobject, Object, T_OBJECT)
1221 WRAPPER_SetField(jboolean, Boolean, T_BOOLEAN)
1222 WRAPPER_SetField(jbyte, Byte, T_BYTE)
1223 WRAPPER_SetField(jshort, Short, T_SHORT)
1224 WRAPPER_SetField(jchar, Char, T_CHAR)
1225 WRAPPER_SetField(jint, Int, T_INT)
1226 WRAPPER_SetField(jlong, Long, T_LONG)
1227 WRAPPER_SetField(jfloat, Float, T_FLOAT)
1228 WRAPPER_SetField(jdouble, Double, T_DOUBLE)
1229
1230
1231 JNI_ENTRY_CHECKED(jmethodID,
1232 checked_jni_GetStaticMethodID(JNIEnv *env,
1233 jclass clazz,
1234 const char *name,
1235 const char *sig))
1236 functionEnter(thr);
1237 IN_VM(
1238 jniCheck::validate_class(thr, clazz, false);
1239 )
1240 jmethodID result = UNCHECKED()->GetStaticMethodID(env,clazz,name,sig);
1241 functionExit(thr);
1242 return result;
1243 JNI_END
1244
1245 #define WRAPPER_CallStaticMethod(ReturnType,Result) \
1246 JNI_ENTRY_CHECKED(ReturnType, \
1247 checked_jni_CallStatic##Result##Method(JNIEnv *env, \
1248 jclass clazz, \
1249 jmethodID methodID, \
1250 ...)) \
1251 functionEnter(thr); \
1252 va_list args; \
1253 IN_VM( \
1254 jniCheck::validate_jmethod_id(thr, methodID); \
1255 jniCheck::validate_class(thr, clazz, false); \
1256 ) \
1257 va_start(args,methodID); \
1258 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1259 clazz, \
1260 methodID, \
1261 args); \
1262 va_end(args); \
1263 thr->set_pending_jni_exception_check("CallStatic"#Result"Method"); \
1264 functionExit(thr); \
1265 return result; \
1266 JNI_END \
1267 \
1268 JNI_ENTRY_CHECKED(ReturnType, \
1269 checked_jni_CallStatic##Result##MethodV(JNIEnv *env, \
1270 jclass clazz, \
1271 jmethodID methodID,\
1272 va_list args)) \
1273 functionEnter(thr); \
1274 IN_VM( \
1275 jniCheck::validate_jmethod_id(thr, methodID); \
1276 jniCheck::validate_class(thr, clazz, false); \
1277 ) \
1278 ReturnType result = UNCHECKED()->CallStatic##Result##MethodV(env, \
1279 clazz, \
1280 methodID, \
1281 args); \
1282 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodV"); \
1283 functionExit(thr); \
1284 return result; \
1285 JNI_END \
1286 \
1287 JNI_ENTRY_CHECKED(ReturnType, \
1288 checked_jni_CallStatic##Result##MethodA(JNIEnv *env, \
1289 jclass clazz, \
1290 jmethodID methodID, \
1291 const jvalue *args)) \
1292 functionEnter(thr); \
1293 IN_VM( \
1294 jniCheck::validate_jmethod_id(thr, methodID); \
1295 jniCheck::validate_class(thr, clazz, false); \
1296 ) \
1297 ReturnType result = UNCHECKED()->CallStatic##Result##MethodA(env, \
1298 clazz, \
1299 methodID, \
1300 args); \
1301 thr->set_pending_jni_exception_check("CallStatic"#Result"MethodA"); \
1302 functionExit(thr); \
1303 return result; \
1304 JNI_END
1305
1306 WRAPPER_CallStaticMethod(jobject,Object)
1307 WRAPPER_CallStaticMethod(jboolean,Boolean)
1308 WRAPPER_CallStaticMethod(jbyte,Byte)
1309 WRAPPER_CallStaticMethod(jshort,Short)
1310 WRAPPER_CallStaticMethod(jchar,Char)
1311 WRAPPER_CallStaticMethod(jint,Int)
1312 WRAPPER_CallStaticMethod(jlong,Long)
1313 WRAPPER_CallStaticMethod(jfloat,Float)
1314 WRAPPER_CallStaticMethod(jdouble,Double)
1315
1316 JNI_ENTRY_CHECKED(void,
1317 checked_jni_CallStaticVoidMethod(JNIEnv *env,
1318 jclass cls,
1319 jmethodID methodID,
1320 ...))
1321 functionEnter(thr);
1322 va_list args;
1323 IN_VM(
1324 jniCheck::validate_jmethod_id(thr, methodID);
1325 jniCheck::validate_class(thr, cls, false);
1326 )
1327 va_start(args,methodID);
1328 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1329 va_end(args);
1330 thr->set_pending_jni_exception_check("CallStaticVoidMethod");
1331 functionExit(thr);
1332 JNI_END
1333
1334 JNI_ENTRY_CHECKED(void,
1335 checked_jni_CallStaticVoidMethodV(JNIEnv *env,
1336 jclass cls,
1337 jmethodID methodID,
1338 va_list args))
1339 functionEnter(thr);
1340 IN_VM(
1341 jniCheck::validate_jmethod_id(thr, methodID);
1342 jniCheck::validate_class(thr, cls, false);
1343 )
1344 UNCHECKED()->CallStaticVoidMethodV(env,cls,methodID,args);
1345 thr->set_pending_jni_exception_check("CallStaticVoidMethodV");
1346 functionExit(thr);
1347 JNI_END
1348
1349 JNI_ENTRY_CHECKED(void,
1350 checked_jni_CallStaticVoidMethodA(JNIEnv *env,
1351 jclass cls,
1352 jmethodID methodID,
1353 const jvalue * args))
1354 functionEnter(thr);
1355 IN_VM(
1356 jniCheck::validate_jmethod_id(thr, methodID);
1357 jniCheck::validate_class(thr, cls, false);
1358 )
1359 UNCHECKED()->CallStaticVoidMethodA(env,cls,methodID,args);
1360 thr->set_pending_jni_exception_check("CallStaticVoidMethodA");
1361 functionExit(thr);
1362 JNI_END
1363
1364 JNI_ENTRY_CHECKED(jfieldID,
1365 checked_jni_GetStaticFieldID(JNIEnv *env,
1366 jclass clazz,
1367 const char *name,
1368 const char *sig))
1369 functionEnter(thr);
1370 IN_VM(
1371 jniCheck::validate_class(thr, clazz, false);
1372 )
1373 jfieldID result = UNCHECKED()->GetStaticFieldID(env,clazz,name,sig);
1374 functionExit(thr);
1375 return result;
1376 JNI_END
1377
1378 #define WRAPPER_GetStaticField(ReturnType,Result,FieldType) \
1379 JNI_ENTRY_CHECKED(ReturnType, \
1380 checked_jni_GetStatic##Result##Field(JNIEnv *env, \
1381 jclass clazz, \
1382 jfieldID fieldID)) \
1383 functionEnter(thr); \
1384 IN_VM( \
1385 jniCheck::validate_class(thr, clazz, false); \
1386 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1387 ) \
1388 ReturnType result = UNCHECKED()->GetStatic##Result##Field(env, \
1389 clazz, \
1390 fieldID); \
1391 functionExit(thr); \
1392 return result; \
1393 JNI_END
1394
1395 WRAPPER_GetStaticField(jobject, Object, T_OBJECT)
1396 WRAPPER_GetStaticField(jboolean, Boolean, T_BOOLEAN)
1397 WRAPPER_GetStaticField(jbyte, Byte, T_BYTE)
1398 WRAPPER_GetStaticField(jshort, Short, T_SHORT)
1399 WRAPPER_GetStaticField(jchar, Char, T_CHAR)
1400 WRAPPER_GetStaticField(jint, Int, T_INT)
1401 WRAPPER_GetStaticField(jlong, Long, T_LONG)
1402 WRAPPER_GetStaticField(jfloat, Float, T_FLOAT)
1403 WRAPPER_GetStaticField(jdouble, Double, T_DOUBLE)
1404
1405 #define WRAPPER_SetStaticField(ValueType,Result,FieldType) \
1406 JNI_ENTRY_CHECKED(void, \
1407 checked_jni_SetStatic##Result##Field(JNIEnv *env, \
1408 jclass clazz, \
1409 jfieldID fieldID, \
1410 ValueType value)) \
1411 functionEnter(thr); \
1412 IN_VM( \
1413 jniCheck::validate_class(thr, clazz, false); \
1414 checkStaticFieldID(thr, fieldID, clazz, FieldType); \
1415 ) \
1416 UNCHECKED()->SetStatic##Result##Field(env,clazz,fieldID,value); \
1417 functionExit(thr); \
1418 JNI_END
1419
1420 WRAPPER_SetStaticField(jobject, Object, T_OBJECT)
1421 WRAPPER_SetStaticField(jboolean, Boolean, T_BOOLEAN)
1422 WRAPPER_SetStaticField(jbyte, Byte, T_BYTE)
1423 WRAPPER_SetStaticField(jshort, Short, T_SHORT)
1424 WRAPPER_SetStaticField(jchar, Char, T_CHAR)
1425 WRAPPER_SetStaticField(jint, Int, T_INT)
1426 WRAPPER_SetStaticField(jlong, Long, T_LONG)
1427 WRAPPER_SetStaticField(jfloat, Float, T_FLOAT)
1428 WRAPPER_SetStaticField(jdouble, Double, T_DOUBLE)
1429
1430
1431 JNI_ENTRY_CHECKED(jstring,
1432 checked_jni_NewString(JNIEnv *env,
1433 const jchar *unicode,
1434 jsize len))
1435 functionEnter(thr);
1436 jstring result = UNCHECKED()->NewString(env,unicode,len);
1437 functionExit(thr);
1438 return result;
1439 JNI_END
1440
1441 JNI_ENTRY_CHECKED(jsize,
1442 checked_jni_GetStringLength(JNIEnv *env,
1443 jstring str))
1444 functionEnter(thr);
1445 IN_VM(
1446 checkString(thr, str);
1447 )
1448 jsize result = UNCHECKED()->GetStringLength(env,str);
1449 functionExit(thr);
1450 return result;
1451 JNI_END
1452
1453 // Arbitrary (but well-known) tag
1454 const void* STRING_TAG = (void*)0x47114711;
1455
1456 JNI_ENTRY_CHECKED(const jchar *,
1457 checked_jni_GetStringChars(JNIEnv *env,
1458 jstring str,
1459 jboolean *isCopy))
1460 functionEnter(thr);
1461 IN_VM(
1462 checkString(thr, str);
1463 )
1464 jchar* new_result = NULL;
1465 const jchar *result = UNCHECKED()->GetStringChars(env,str,isCopy);
1466 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringChars didn't return a copy as expected");
1467 if (result != NULL) {
1468 size_t len = UNCHECKED()->GetStringLength(env,str) + 1; // + 1 for NULL termination
1469 len *= sizeof(jchar);
1470 new_result = (jchar*) GuardedMemory::wrap_copy(result, len, STRING_TAG);
1471 if (new_result == NULL) {
1472 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringChars");
1473 }
1474 // Avoiding call to UNCHECKED()->ReleaseStringChars() since that will fire unexpected dtrace probes
1475 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1476 FreeHeap((char*)result);
1477 }
1478 functionExit(thr);
1479 return new_result;
1480 JNI_END
1481
1482 JNI_ENTRY_CHECKED(void,
1483 checked_jni_ReleaseStringChars(JNIEnv *env,
1484 jstring str,
1485 const jchar *chars))
1486 functionEnterExceptionAllowed(thr);
1487 IN_VM(
1488 checkString(thr, str);
1489 )
1490 if (chars == NULL) {
1491 // still do the unchecked call to allow dtrace probes
1492 UNCHECKED()->ReleaseStringChars(env,str,chars);
1493 }
1494 else {
1495 GuardedMemory guarded((void*)chars);
1496 if (guarded.verify_guards()) {
1497 tty->print_cr("ReleaseStringChars: release chars failed bounds check. "
1498 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1499 guarded.print_on(tty);
1500 NativeReportJNIFatalError(thr, "ReleaseStringChars: "
1501 "release chars failed bounds check.");
1502 }
1503 if (guarded.get_tag() != STRING_TAG) {
1504 tty->print_cr("ReleaseStringChars: called on something not allocated "
1505 "by GetStringChars. string: " PTR_FORMAT " chars: " PTR_FORMAT,
1506 p2i(str), p2i(chars));
1507 NativeReportJNIFatalError(thr, "ReleaseStringChars called on something "
1508 "not allocated by GetStringChars");
1509 }
1510 UNCHECKED()->ReleaseStringChars(env, str,
1511 (const jchar*) guarded.release_for_freeing());
1512 }
1513 functionExit(thr);
1514 JNI_END
1515
1516 JNI_ENTRY_CHECKED(jstring,
1517 checked_jni_NewStringUTF(JNIEnv *env,
1518 const char *utf))
1519 functionEnter(thr);
1520 jstring result = UNCHECKED()->NewStringUTF(env,utf);
1521 functionExit(thr);
1522 return result;
1523 JNI_END
1524
1525 JNI_ENTRY_CHECKED(jsize,
1526 checked_jni_GetStringUTFLength(JNIEnv *env,
1527 jstring str))
1528 functionEnter(thr);
1529 IN_VM(
1530 checkString(thr, str);
1531 )
1532 jsize result = UNCHECKED()->GetStringUTFLength(env,str);
1533 functionExit(thr);
1534 return result;
1535 JNI_END
1536
1537 // Arbitrary (but well-known) tag - different than GetStringChars
1538 const void* STRING_UTF_TAG = (void*) 0x48124812;
1539
1540 JNI_ENTRY_CHECKED(const char *,
1541 checked_jni_GetStringUTFChars(JNIEnv *env,
1542 jstring str,
1543 jboolean *isCopy))
1544 functionEnter(thr);
1545 IN_VM(
1546 checkString(thr, str);
1547 )
1548 char* new_result = NULL;
1549 const char *result = UNCHECKED()->GetStringUTFChars(env,str,isCopy);
1550 assert (isCopy == NULL || *isCopy == JNI_TRUE, "GetStringUTFChars didn't return a copy as expected");
1551 if (result != NULL) {
1552 size_t len = strlen(result) + 1; // + 1 for NULL termination
1553 new_result = (char*) GuardedMemory::wrap_copy(result, len, STRING_UTF_TAG);
1554 if (new_result == NULL) {
1555 vm_exit_out_of_memory(len, OOM_MALLOC_ERROR, "checked_jni_GetStringUTFChars");
1556 }
1557 // Avoiding call to UNCHECKED()->ReleaseStringUTFChars() since that will fire unexpected dtrace probes
1558 // Note that the dtrace arguments for the allocated memory will not match up with this solution.
1559 FreeHeap((char*)result, mtInternal);
1560 }
1561 functionExit(thr);
1562 return new_result;
1563 JNI_END
1564
1565 JNI_ENTRY_CHECKED(void,
1566 checked_jni_ReleaseStringUTFChars(JNIEnv *env,
1567 jstring str,
1568 const char* chars))
1569 functionEnterExceptionAllowed(thr);
1570 IN_VM(
1571 checkString(thr, str);
1572 )
1573 if (chars == NULL) {
1574 // still do the unchecked call to allow dtrace probes
1575 UNCHECKED()->ReleaseStringUTFChars(env,str,chars);
1576 }
1577 else {
1578 GuardedMemory guarded((void*)chars);
1579 if (guarded.verify_guards()) {
1580 tty->print_cr("ReleaseStringUTFChars: release chars failed bounds check. "
1581 "string: " PTR_FORMAT " chars: " PTR_FORMAT, p2i(str), p2i(chars));
1582 guarded.print_on(tty);
1583 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars: "
1584 "release chars failed bounds check.");
1585 }
1586 if (guarded.get_tag() != STRING_UTF_TAG) {
1587 tty->print_cr("ReleaseStringUTFChars: called on something not "
1588 "allocated by GetStringUTFChars. string: " PTR_FORMAT " chars: "
1589 PTR_FORMAT, p2i(str), p2i(chars));
1590 NativeReportJNIFatalError(thr, "ReleaseStringUTFChars "
1591 "called on something not allocated by GetStringUTFChars");
1592 }
1593 UNCHECKED()->ReleaseStringUTFChars(env, str,
1594 (const char*) guarded.release_for_freeing());
1595 }
1596 functionExit(thr);
1597 JNI_END
1598
1599 JNI_ENTRY_CHECKED(jsize,
1600 checked_jni_GetArrayLength(JNIEnv *env,
1601 jarray array))
1602 functionEnter(thr);
1603 IN_VM(
1604 check_is_array(thr, array);
1605 )
1606 jsize result = UNCHECKED()->GetArrayLength(env,array);
1607 functionExit(thr);
1608 return result;
1609 JNI_END
1610
1611 JNI_ENTRY_CHECKED(jobjectArray,
1612 checked_jni_NewObjectArray(JNIEnv *env,
1613 jsize len,
1614 jclass clazz,
1615 jobject init))
1616 functionEnter(thr);
1617 jobjectArray result = UNCHECKED()->NewObjectArray(env,len,clazz,init);
1618 functionExit(thr);
1619 return result;
1620 JNI_END
1621
1622 JNI_ENTRY_CHECKED(jobject,
1623 checked_jni_GetObjectArrayElement(JNIEnv *env,
1624 jobjectArray array,
1625 jsize index))
1626 functionEnter(thr);
1627 IN_VM(
1628 check_is_obj_array(thr, array);
1629 )
1630 jobject result = UNCHECKED()->GetObjectArrayElement(env,array,index);
1631 thr->set_pending_jni_exception_check("GetObjectArrayElement");
1632 functionExit(thr);
1633 return result;
1634 JNI_END
1635
1636 JNI_ENTRY_CHECKED(void,
1637 checked_jni_SetObjectArrayElement(JNIEnv *env,
1638 jobjectArray array,
1639 jsize index,
1640 jobject val))
1641 functionEnter(thr);
1642 IN_VM(
1643 check_is_obj_array(thr, array);
1644 )
1645 UNCHECKED()->SetObjectArrayElement(env,array,index,val);
1646 thr->set_pending_jni_exception_check("SetObjectArrayElement");
1647 functionExit(thr);
1648 JNI_END
1649
1650 #define WRAPPER_NewScalarArray(Return, Result) \
1651 JNI_ENTRY_CHECKED(Return, \
1652 checked_jni_New##Result##Array(JNIEnv *env, \
1653 jsize len)) \
1654 functionEnter(thr); \
1655 Return result = UNCHECKED()->New##Result##Array(env,len); \
1656 functionExit(thr); \
1657 return (Return) result; \
1658 JNI_END
1659
1660 WRAPPER_NewScalarArray(jbooleanArray, Boolean)
1661 WRAPPER_NewScalarArray(jbyteArray, Byte)
1662 WRAPPER_NewScalarArray(jshortArray, Short)
1663 WRAPPER_NewScalarArray(jcharArray, Char)
1664 WRAPPER_NewScalarArray(jintArray, Int)
1665 WRAPPER_NewScalarArray(jlongArray, Long)
1666 WRAPPER_NewScalarArray(jfloatArray, Float)
1667 WRAPPER_NewScalarArray(jdoubleArray, Double)
1668
1669 #define WRAPPER_GetScalarArrayElements(ElementTag,ElementType,Result) \
1670 JNI_ENTRY_CHECKED(ElementType *, \
1671 checked_jni_Get##Result##ArrayElements(JNIEnv *env, \
1672 ElementType##Array array, \
1673 jboolean *isCopy)) \
1674 functionEnter(thr); \
1675 IN_VM( \
1676 check_primitive_array_type(thr, array, ElementTag); \
1677 ) \
1678 ElementType *result = UNCHECKED()->Get##Result##ArrayElements(env, \
1679 array, \
1680 isCopy); \
1681 if (result != NULL) { \
1682 result = (ElementType *) check_jni_wrap_copy_array(thr, array, result); \
1683 } \
1684 functionExit(thr); \
1685 return result; \
1686 JNI_END
1687
1688 WRAPPER_GetScalarArrayElements(T_BOOLEAN, jboolean, Boolean)
1689 WRAPPER_GetScalarArrayElements(T_BYTE, jbyte, Byte)
1690 WRAPPER_GetScalarArrayElements(T_SHORT, jshort, Short)
1691 WRAPPER_GetScalarArrayElements(T_CHAR, jchar, Char)
1692 WRAPPER_GetScalarArrayElements(T_INT, jint, Int)
1693 WRAPPER_GetScalarArrayElements(T_LONG, jlong, Long)
1694 WRAPPER_GetScalarArrayElements(T_FLOAT, jfloat, Float)
1695 WRAPPER_GetScalarArrayElements(T_DOUBLE, jdouble, Double)
1696
1697 #define WRAPPER_ReleaseScalarArrayElements(ElementTag,ElementType,Result,Tag) \
1698 JNI_ENTRY_CHECKED(void, \
1699 checked_jni_Release##Result##ArrayElements(JNIEnv *env, \
1700 ElementType##Array array, \
1701 ElementType *elems, \
1702 jint mode)) \
1703 functionEnterExceptionAllowed(thr); \
1704 IN_VM( \
1705 check_primitive_array_type(thr, array, ElementTag); \
1706 ASSERT_OOPS_ALLOWED; \
1707 typeArrayOop a = typeArrayOop(JNIHandles::resolve_non_null(array)); \
1708 ) \
1709 ElementType* orig_result = (ElementType *) check_wrapped_array_release( \
1710 thr, "checked_jni_Release"#Result"ArrayElements", array, elems, mode); \
1711 UNCHECKED()->Release##Result##ArrayElements(env, array, orig_result, mode); \
1712 functionExit(thr); \
1713 JNI_END
1714
1715 WRAPPER_ReleaseScalarArrayElements(T_BOOLEAN,jboolean, Boolean, bool)
1716 WRAPPER_ReleaseScalarArrayElements(T_BYTE, jbyte, Byte, byte)
1717 WRAPPER_ReleaseScalarArrayElements(T_SHORT, jshort, Short, short)
1718 WRAPPER_ReleaseScalarArrayElements(T_CHAR, jchar, Char, char)
1719 WRAPPER_ReleaseScalarArrayElements(T_INT, jint, Int, int)
1720 WRAPPER_ReleaseScalarArrayElements(T_LONG, jlong, Long, long)
1721 WRAPPER_ReleaseScalarArrayElements(T_FLOAT, jfloat, Float, float)
1722 WRAPPER_ReleaseScalarArrayElements(T_DOUBLE, jdouble, Double, double)
1723
1724 #define WRAPPER_GetScalarArrayRegion(ElementTag,ElementType,Result) \
1725 JNI_ENTRY_CHECKED(void, \
1726 checked_jni_Get##Result##ArrayRegion(JNIEnv *env, \
1727 ElementType##Array array, \
1728 jsize start, \
1729 jsize len, \
1730 ElementType *buf)) \
1731 functionEnter(thr); \
1732 IN_VM( \
1733 check_primitive_array_type(thr, array, ElementTag); \
1734 ) \
1735 UNCHECKED()->Get##Result##ArrayRegion(env,array,start,len,buf); \
1736 thr->set_pending_jni_exception_check("Get"#Result"ArrayRegion"); \
1737 functionExit(thr); \
1738 JNI_END
1739
1740 WRAPPER_GetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1741 WRAPPER_GetScalarArrayRegion(T_BYTE, jbyte, Byte)
1742 WRAPPER_GetScalarArrayRegion(T_SHORT, jshort, Short)
1743 WRAPPER_GetScalarArrayRegion(T_CHAR, jchar, Char)
1744 WRAPPER_GetScalarArrayRegion(T_INT, jint, Int)
1745 WRAPPER_GetScalarArrayRegion(T_LONG, jlong, Long)
1746 WRAPPER_GetScalarArrayRegion(T_FLOAT, jfloat, Float)
1747 WRAPPER_GetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1748
1749 #define WRAPPER_SetScalarArrayRegion(ElementTag,ElementType,Result) \
1750 JNI_ENTRY_CHECKED(void, \
1751 checked_jni_Set##Result##ArrayRegion(JNIEnv *env, \
1752 ElementType##Array array, \
1753 jsize start, \
1754 jsize len, \
1755 const ElementType *buf)) \
1756 functionEnter(thr); \
1757 IN_VM( \
1758 check_primitive_array_type(thr, array, ElementTag); \
1759 ) \
1760 UNCHECKED()->Set##Result##ArrayRegion(env,array,start,len,buf); \
1761 thr->set_pending_jni_exception_check("Set"#Result"ArrayRegion"); \
1762 functionExit(thr); \
1763 JNI_END
1764
1765 WRAPPER_SetScalarArrayRegion(T_BOOLEAN, jboolean, Boolean)
1766 WRAPPER_SetScalarArrayRegion(T_BYTE, jbyte, Byte)
1767 WRAPPER_SetScalarArrayRegion(T_SHORT, jshort, Short)
1768 WRAPPER_SetScalarArrayRegion(T_CHAR, jchar, Char)
1769 WRAPPER_SetScalarArrayRegion(T_INT, jint, Int)
1770 WRAPPER_SetScalarArrayRegion(T_LONG, jlong, Long)
1771 WRAPPER_SetScalarArrayRegion(T_FLOAT, jfloat, Float)
1772 WRAPPER_SetScalarArrayRegion(T_DOUBLE, jdouble, Double)
1773
1774 JNI_ENTRY_CHECKED(jint,
1775 checked_jni_RegisterNatives(JNIEnv *env,
1776 jclass clazz,
1777 const JNINativeMethod *methods,
1778 jint nMethods))
1779 functionEnter(thr);
1780 jint result = UNCHECKED()->RegisterNatives(env,clazz,methods,nMethods);
1781 functionExit(thr);
1782 return result;
1783 JNI_END
1784
1785 JNI_ENTRY_CHECKED(jint,
1786 checked_jni_UnregisterNatives(JNIEnv *env,
1787 jclass clazz))
1788 functionEnter(thr);
1789 jint result = UNCHECKED()->UnregisterNatives(env,clazz);
1790 functionExit(thr);
1791 return result;
1792 JNI_END
1793
1794 JNI_ENTRY_CHECKED(jint,
1795 checked_jni_MonitorEnter(JNIEnv *env,
1796 jobject obj))
1797 functionEnter(thr);
1798 IN_VM(
1799 jniCheck::validate_object(thr, obj);
1800 )
1801 jint result = UNCHECKED()->MonitorEnter(env,obj);
1802 functionExit(thr);
1803 return result;
1804 JNI_END
1805
1806 JNI_ENTRY_CHECKED(jint,
1807 checked_jni_MonitorExit(JNIEnv *env,
1808 jobject obj))
1809 functionEnterExceptionAllowed(thr);
1810 IN_VM(
1811 jniCheck::validate_object(thr, obj);
1812 )
1813 jint result = UNCHECKED()->MonitorExit(env,obj);
1814 functionExit(thr);
1815 return result;
1816 JNI_END
1817
1818 JNI_ENTRY_CHECKED(jint,
1819 checked_jni_GetJavaVM(JNIEnv *env,
1820 JavaVM **vm))
1821 functionEnter(thr);
1822 jint result = UNCHECKED()->GetJavaVM(env,vm);
1823 functionExit(thr);
1824 return result;
1825 JNI_END
1826
1827 JNI_ENTRY_CHECKED(void,
1828 checked_jni_GetStringRegion(JNIEnv *env,
1829 jstring str,
1830 jsize start,
1831 jsize len,
1832 jchar *buf))
1833 functionEnter(thr);
1834 IN_VM(
1835 checkString(thr, str);
1836 )
1837 UNCHECKED()->GetStringRegion(env, str, start, len, buf);
1838 thr->set_pending_jni_exception_check("GetStringRegion");
1839 functionExit(thr);
1840 JNI_END
1841
1842 JNI_ENTRY_CHECKED(void,
1843 checked_jni_GetStringUTFRegion(JNIEnv *env,
1844 jstring str,
1845 jsize start,
1846 jsize len,
1847 char *buf))
1848 functionEnter(thr);
1849 IN_VM(
1850 checkString(thr, str);
1851 )
1852 UNCHECKED()->GetStringUTFRegion(env, str, start, len, buf);
1853 thr->set_pending_jni_exception_check("GetStringUTFRegion");
1854 functionExit(thr);
1855 JNI_END
1856
1857 JNI_ENTRY_CHECKED(void *,
1858 checked_jni_GetPrimitiveArrayCritical(JNIEnv *env,
1859 jarray array,
1860 jboolean *isCopy))
1861 functionEnterCritical(thr);
1862 IN_VM(
1863 check_is_primitive_array(thr, array);
1864 )
1865 void *result = UNCHECKED()->GetPrimitiveArrayCritical(env, array, isCopy);
1866 if (result != NULL) {
1867 result = check_jni_wrap_copy_array(thr, array, result);
1868 }
1869 functionExit(thr);
1870 return result;
1871 JNI_END
1872
1873 JNI_ENTRY_CHECKED(void,
1874 checked_jni_ReleasePrimitiveArrayCritical(JNIEnv *env,
1875 jarray array,
1876 void *carray,
1877 jint mode))
1878 functionEnterCriticalExceptionAllowed(thr);
1879 IN_VM(
1880 check_is_primitive_array(thr, array);
1881 )
1882 // Check the element array...
1883 void* orig_result = check_wrapped_array_release(thr, "ReleasePrimitiveArrayCritical", array, carray, mode);
1884 UNCHECKED()->ReleasePrimitiveArrayCritical(env, array, orig_result, mode);
1885 functionExit(thr);
1886 JNI_END
1887
1888 JNI_ENTRY_CHECKED(const jchar*,
1889 checked_jni_GetStringCritical(JNIEnv *env,
1890 jstring string,
1891 jboolean *isCopy))
1892 functionEnterCritical(thr);
1893 IN_VM(
1894 checkString(thr, string);
1895 )
1896 const jchar *result = UNCHECKED()->GetStringCritical(env, string, isCopy);
1897 functionExit(thr);
1898 return result;
1899 JNI_END
1900
1901 JNI_ENTRY_CHECKED(void,
1902 checked_jni_ReleaseStringCritical(JNIEnv *env,
1903 jstring str,
1904 const jchar *chars))
1905 functionEnterCriticalExceptionAllowed(thr);
1906 IN_VM(
1907 checkString(thr, str);
1908 )
1909 /* The Hotspot JNI code does not use the parameters, so just check the
1910 * string parameter as a minor sanity check
1911 */
1912 UNCHECKED()->ReleaseStringCritical(env, str, chars);
1913 functionExit(thr);
1914 JNI_END
1915
1916 JNI_ENTRY_CHECKED(jweak,
1917 checked_jni_NewWeakGlobalRef(JNIEnv *env,
1918 jobject obj))
1919 functionEnter(thr);
1920 IN_VM(
1921 if (obj != NULL) {
1922 jniCheck::validate_handle(thr, obj);
1923 }
1924 )
1925 jweak result = UNCHECKED()->NewWeakGlobalRef(env, obj);
1926 functionExit(thr);
1927 return result;
1928 JNI_END
1929
1930 JNI_ENTRY_CHECKED(void,
1931 checked_jni_DeleteWeakGlobalRef(JNIEnv *env,
1932 jweak ref))
1933 functionEnterExceptionAllowed(thr);
1934 UNCHECKED()->DeleteWeakGlobalRef(env, ref);
1935 functionExit(thr);
1936 JNI_END
1937
1938 JNI_ENTRY_CHECKED(jboolean,
1939 checked_jni_ExceptionCheck(JNIEnv *env))
1940 thr->clear_pending_jni_exception_check();
1941 functionEnterExceptionAllowed(thr);
1942 jboolean result = UNCHECKED()->ExceptionCheck(env);
1943 functionExit(thr);
1944 return result;
1945 JNI_END
1946
1947 JNI_ENTRY_CHECKED(jobject,
1948 checked_jni_NewDirectByteBuffer(JNIEnv *env,
1949 void *address,
1950 jlong capacity))
1951 functionEnter(thr);
1952 jobject result = UNCHECKED()->NewDirectByteBuffer(env, address, capacity);
1953 functionExit(thr);
1954 return result;
1955 JNI_END
1956
1957 JNI_ENTRY_CHECKED(void *,
1958 checked_jni_GetDirectBufferAddress(JNIEnv *env,
1959 jobject buf))
1960 functionEnter(thr);
1961 void* result = UNCHECKED()->GetDirectBufferAddress(env, buf);
1962 functionExit(thr);
1963 return result;
1964 JNI_END
1965
1966 JNI_ENTRY_CHECKED(jlong,
1967 checked_jni_GetDirectBufferCapacity(JNIEnv *env,
1968 jobject buf))
1969 functionEnter(thr);
1970 jlong result = UNCHECKED()->GetDirectBufferCapacity(env, buf);
1971 functionExit(thr);
1972 return result;
1973 JNI_END
1974
1975 JNI_ENTRY_CHECKED(jobjectRefType,
1976 checked_jni_GetObjectRefType(JNIEnv *env,
1977 jobject obj))
1978 functionEnter(thr);
1979 /* validate the object being passed */
1980 IN_VM(
1981 jniCheck::validate_object(thr, obj);
1982 )
1983 jobjectRefType result = UNCHECKED()->GetObjectRefType(env, obj);
1984 functionExit(thr);
1985 return result;
1986 JNI_END
1987
1988
1989 JNI_ENTRY_CHECKED(jint,
1990 checked_jni_GetVersion(JNIEnv *env))
1991 functionEnter(thr);
1992 jint result = UNCHECKED()->GetVersion(env);
1993 functionExit(thr);
1994 return result;
1995 JNI_END
1996
1997
1998
1999 /*
2000 * Structure containing all checked jni functions
2001 */
2002 struct JNINativeInterface_ checked_jni_NativeInterface = {
2003 NULL,
2004 NULL,
2005 NULL,
2006
2007 NULL,
2008
2009 checked_jni_GetVersion,
2010
2011 checked_jni_DefineClass,
2012 checked_jni_FindClass,
2013
|