590 guarantee(cb->is_adapter_blob(),
591 "exception happened outside interpreter, nmethods and vtable stubs (1)");
592 // There is no handler here, so we will simply unwind.
593 return StubRoutines::throw_NullPointerException_at_call_entry();
594 }
595
596 // Otherwise, it's an nmethod. Consult its exception handlers.
597 nmethod* nm = (nmethod*)cb;
598 if (nm->inlinecache_check_contains(pc)) {
599 // exception happened inside inline-cache check code
600 // => the nmethod is not yet active (i.e., the frame
601 // is not set up yet) => use return address pushed by
602 // caller => don't push another return address
603 return StubRoutines::throw_NullPointerException_at_call_entry();
604 }
605
606 #ifndef PRODUCT
607 _implicit_null_throws++;
608 #endif
609 target_pc = nm->continuation_for_implicit_exception(pc);
610 guarantee(target_pc != 0, "must have a continuation point");
611 }
612
613 break; // fall through
614 }
615
616
617 case IMPLICIT_DIVIDE_BY_ZERO: {
618 nmethod* nm = CodeCache::find_nmethod(pc);
619 guarantee(nm != NULL, "must have containing nmethod for implicit division-by-zero exceptions");
620 #ifndef PRODUCT
621 _implicit_div0_throws++;
622 #endif
623 target_pc = nm->continuation_for_implicit_exception(pc);
624 guarantee(target_pc != 0, "must have a continuation point");
625 break; // fall through
626 }
627
628 default: ShouldNotReachHere();
629 }
630
631 guarantee(target_pc != NULL, "must have computed destination PC for implicit exception");
632 assert(exception_kind == IMPLICIT_NULL || exception_kind == IMPLICIT_DIVIDE_BY_ZERO, "wrong implicit exception kind");
633
634 // for AbortVMOnException flag
635 NOT_PRODUCT(Exceptions::debug_check_abort("java.lang.NullPointerException"));
636 if (exception_kind == IMPLICIT_NULL) {
637 Events::log("Implicit null exception at " INTPTR_FORMAT " to " INTPTR_FORMAT, pc, target_pc);
638 } else {
639 Events::log("Implicit division by zero exception at " INTPTR_FORMAT " to " INTPTR_FORMAT, pc, target_pc);
640 }
641 return target_pc;
642 }
643
644 ShouldNotReachHere();
645 return NULL;
646 }
647
648
649 JNI_ENTRY(void, throw_unsatisfied_link_error(JNIEnv* env, ...))
650 {
651 THROW(vmSymbols::java_lang_UnsatisfiedLinkError());
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590 guarantee(cb->is_adapter_blob(),
591 "exception happened outside interpreter, nmethods and vtable stubs (1)");
592 // There is no handler here, so we will simply unwind.
593 return StubRoutines::throw_NullPointerException_at_call_entry();
594 }
595
596 // Otherwise, it's an nmethod. Consult its exception handlers.
597 nmethod* nm = (nmethod*)cb;
598 if (nm->inlinecache_check_contains(pc)) {
599 // exception happened inside inline-cache check code
600 // => the nmethod is not yet active (i.e., the frame
601 // is not set up yet) => use return address pushed by
602 // caller => don't push another return address
603 return StubRoutines::throw_NullPointerException_at_call_entry();
604 }
605
606 #ifndef PRODUCT
607 _implicit_null_throws++;
608 #endif
609 target_pc = nm->continuation_for_implicit_exception(pc);
610 // If there's an unexpected fault, target_pc might be NULL,
611 // in which case we want to fall through into the normal
612 // error handling code.
613 }
614
615 break; // fall through
616 }
617
618
619 case IMPLICIT_DIVIDE_BY_ZERO: {
620 nmethod* nm = CodeCache::find_nmethod(pc);
621 guarantee(nm != NULL, "must have containing nmethod for implicit division-by-zero exceptions");
622 #ifndef PRODUCT
623 _implicit_div0_throws++;
624 #endif
625 target_pc = nm->continuation_for_implicit_exception(pc);
626 // If there's an unexpected fault, target_pc might be NULL,
627 // in which case we want to fall through into the normal
628 // error handling code.
629 break; // fall through
630 }
631
632 default: ShouldNotReachHere();
633 }
634
635 assert(exception_kind == IMPLICIT_NULL || exception_kind == IMPLICIT_DIVIDE_BY_ZERO, "wrong implicit exception kind");
636
637 // for AbortVMOnException flag
638 NOT_PRODUCT(Exceptions::debug_check_abort("java.lang.NullPointerException"));
639 if (exception_kind == IMPLICIT_NULL) {
640 Events::log("Implicit null exception at " INTPTR_FORMAT " to " INTPTR_FORMAT, pc, target_pc);
641 } else {
642 Events::log("Implicit division by zero exception at " INTPTR_FORMAT " to " INTPTR_FORMAT, pc, target_pc);
643 }
644 return target_pc;
645 }
646
647 ShouldNotReachHere();
648 return NULL;
649 }
650
651
652 JNI_ENTRY(void, throw_unsatisfied_link_error(JNIEnv* env, ...))
653 {
654 THROW(vmSymbols::java_lang_UnsatisfiedLinkError());
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