613 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Method %s is not held by an interface, this case should be handled in Java code", method->name_and_sig_as_C_string()));
614 }
615 if (!InstanceKlass::cast(klass)->is_linked()) {
616 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
617 }
618 return LinkResolver::vtable_index_of_interface_method(klass, method);
619 C2V_END
620
621 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
622 Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
623 Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
624 Method* method = CompilerToVM::asMethod(jvmci_method);
625
626 if (recv_klass->is_array_klass() || (InstanceKlass::cast(recv_klass)->is_linked())) {
627 Klass* holder_klass = method->method_holder();
628 Symbol* method_name = method->name();
629 Symbol* method_signature = method->signature();
630
631 if (holder_klass->is_interface()) {
632 // do link-time resolution to check all access rules.
633 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
634 methodHandle resolved_method = LinkResolver::linktime_resolve_interface_method_or_null(link_info);
635 if (resolved_method.is_null() || resolved_method->is_private()) {
636 return NULL;
637 }
638 assert(recv_klass->is_subtype_of(holder_klass), "");
639 // do actual lookup
640 methodHandle sel_method = LinkResolver::lookup_instance_method_in_klasses(recv_klass, resolved_method->name(), resolved_method->signature(), CHECK_AND_CLEAR_0);
641 oop result = CompilerToVM::get_jvmci_method(sel_method, CHECK_NULL);
642 return JNIHandles::make_local(THREAD, result);
643 } else {
644 // do link-time resolution to check all access rules.
645 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
646 methodHandle resolved_method = LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
647 if (resolved_method.is_null()) {
648 return NULL;
649 }
650 // do actual lookup (see LinkResolver::runtime_resolve_virtual_method)
651 int vtable_index = Method::invalid_vtable_index;
652 Method* selected_method;
653
654 if (resolved_method->method_holder()->is_interface()) { // miranda method
655 vtable_index = LinkResolver::vtable_index_of_interface_method(holder_klass, resolved_method);
656 assert(vtable_index >= 0 , "we should have valid vtable index at this point");
657
658 InstanceKlass* inst = InstanceKlass::cast(recv_klass);
659 selected_method = inst->method_at_vtable(vtable_index);
660 } else {
661 // at this point we are sure that resolved_method is virtual and not
662 // a miranda method; therefore, it must have a valid vtable index.
663 assert(!resolved_method->has_itable_index(), "");
664 vtable_index = resolved_method->vtable_index();
665 // We could get a negative vtable_index for final methods,
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613 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Method %s is not held by an interface, this case should be handled in Java code", method->name_and_sig_as_C_string()));
614 }
615 if (!InstanceKlass::cast(klass)->is_linked()) {
616 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
617 }
618 return LinkResolver::vtable_index_of_interface_method(klass, method);
619 C2V_END
620
621 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
622 Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
623 Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
624 Method* method = CompilerToVM::asMethod(jvmci_method);
625
626 if (recv_klass->is_array_klass() || (InstanceKlass::cast(recv_klass)->is_linked())) {
627 Klass* holder_klass = method->method_holder();
628 Symbol* method_name = method->name();
629 Symbol* method_signature = method->signature();
630
631 if (holder_klass->is_interface()) {
632 // do link-time resolution to check all access rules.
633 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass);
634 methodHandle resolved_method = LinkResolver::linktime_resolve_interface_method_or_null(link_info);
635 if (resolved_method.is_null() || resolved_method->is_private()) {
636 return NULL;
637 }
638 assert(recv_klass->is_subtype_of(holder_klass), "");
639 // do actual lookup
640 methodHandle sel_method = LinkResolver::lookup_instance_method_in_klasses(recv_klass, resolved_method->name(), resolved_method->signature(), CHECK_AND_CLEAR_0);
641 oop result = CompilerToVM::get_jvmci_method(sel_method, CHECK_NULL);
642 return JNIHandles::make_local(THREAD, result);
643 } else {
644 // do link-time resolution to check all access rules.
645 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass);
646 methodHandle resolved_method = LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
647 if (resolved_method.is_null()) {
648 return NULL;
649 }
650 // do actual lookup (see LinkResolver::runtime_resolve_virtual_method)
651 int vtable_index = Method::invalid_vtable_index;
652 Method* selected_method;
653
654 if (resolved_method->method_holder()->is_interface()) { // miranda method
655 vtable_index = LinkResolver::vtable_index_of_interface_method(holder_klass, resolved_method);
656 assert(vtable_index >= 0 , "we should have valid vtable index at this point");
657
658 InstanceKlass* inst = InstanceKlass::cast(recv_klass);
659 selected_method = inst->method_at_vtable(vtable_index);
660 } else {
661 // at this point we are sure that resolved_method is virtual and not
662 // a miranda method; therefore, it must have a valid vtable index.
663 assert(!resolved_method->has_itable_index(), "");
664 vtable_index = resolved_method->vtable_index();
665 // We could get a negative vtable_index for final methods,
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