557 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()));
558 }
559 if (!InstanceKlass::cast(klass)->is_linked()) {
560 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
561 }
562 return LinkResolver::vtable_index_of_interface_method(klass, method);
563 C2V_END
564
565 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
566 Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
567 Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
568 Method* method = CompilerToVM::asMethod(jvmci_method);
569
570 if (recv_klass->is_array_klass() || (InstanceKlass::cast(recv_klass)->is_linked())) {
571 Klass* holder_klass = method->method_holder();
572 Symbol* method_name = method->name();
573 Symbol* method_signature = method->signature();
574
575 if (holder_klass->is_interface()) {
576 // do link-time resolution to check all access rules.
577 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
578 methodHandle resolved_method = LinkResolver::linktime_resolve_interface_method_or_null(link_info);
579 if (resolved_method.is_null() || resolved_method->is_private()) {
580 return NULL;
581 }
582 assert(recv_klass->is_subtype_of(holder_klass), "");
583 // do actual lookup
584 methodHandle sel_method = LinkResolver::lookup_instance_method_in_klasses(recv_klass, resolved_method->name(), resolved_method->signature(), CHECK_AND_CLEAR_0);
585 oop result = CompilerToVM::get_jvmci_method(sel_method, CHECK_NULL);
586 return JNIHandles::make_local(THREAD, result);
587 } else {
588 // do link-time resolution to check all access rules.
589 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
590 methodHandle resolved_method = LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
591 if (resolved_method.is_null()) {
592 return NULL;
593 }
594 // do actual lookup (see LinkResolver::runtime_resolve_virtual_method)
595 int vtable_index = Method::invalid_vtable_index;
596 Method* selected_method;
597
598 if (resolved_method->method_holder()->is_interface()) { // miranda method
599 vtable_index = LinkResolver::vtable_index_of_interface_method(holder_klass, resolved_method);
600 assert(vtable_index >= 0 , "we should have valid vtable index at this point");
601
602 InstanceKlass* inst = InstanceKlass::cast(recv_klass);
603 selected_method = inst->method_at_vtable(vtable_index);
604 } else {
605 // at this point we are sure that resolved_method is virtual and not
606 // a miranda method; therefore, it must have a valid vtable index.
607 assert(!resolved_method->has_itable_index(), "");
608 vtable_index = resolved_method->vtable_index();
609 // We could get a negative vtable_index for final methods,
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557 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()));
558 }
559 if (!InstanceKlass::cast(klass)->is_linked()) {
560 THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
561 }
562 return LinkResolver::vtable_index_of_interface_method(klass, method);
563 C2V_END
564
565 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
566 Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
567 Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
568 Method* method = CompilerToVM::asMethod(jvmci_method);
569
570 if (recv_klass->is_array_klass() || (InstanceKlass::cast(recv_klass)->is_linked())) {
571 Klass* holder_klass = method->method_holder();
572 Symbol* method_name = method->name();
573 Symbol* method_signature = method->signature();
574
575 if (holder_klass->is_interface()) {
576 // do link-time resolution to check all access rules.
577 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass);
578 methodHandle resolved_method = LinkResolver::linktime_resolve_interface_method_or_null(link_info);
579 if (resolved_method.is_null() || resolved_method->is_private()) {
580 return NULL;
581 }
582 assert(recv_klass->is_subtype_of(holder_klass), "");
583 // do actual lookup
584 methodHandle sel_method = LinkResolver::lookup_instance_method_in_klasses(recv_klass, resolved_method->name(), resolved_method->signature(), CHECK_AND_CLEAR_0);
585 oop result = CompilerToVM::get_jvmci_method(sel_method, CHECK_NULL);
586 return JNIHandles::make_local(THREAD, result);
587 } else {
588 // do link-time resolution to check all access rules.
589 LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass);
590 methodHandle resolved_method = LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
591 if (resolved_method.is_null()) {
592 return NULL;
593 }
594 // do actual lookup (see LinkResolver::runtime_resolve_virtual_method)
595 int vtable_index = Method::invalid_vtable_index;
596 Method* selected_method;
597
598 if (resolved_method->method_holder()->is_interface()) { // miranda method
599 vtable_index = LinkResolver::vtable_index_of_interface_method(holder_klass, resolved_method);
600 assert(vtable_index >= 0 , "we should have valid vtable index at this point");
601
602 InstanceKlass* inst = InstanceKlass::cast(recv_klass);
603 selected_method = inst->method_at_vtable(vtable_index);
604 } else {
605 // at this point we are sure that resolved_method is virtual and not
606 // a miranda method; therefore, it must have a valid vtable index.
607 assert(!resolved_method->has_itable_index(), "");
608 vtable_index = resolved_method->vtable_index();
609 // We could get a negative vtable_index for final methods,
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