/* * Copyright (c) 2017 Jaroslav Jindrak * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include namespace __cxxabiv1 { /** * No need for a body, this function is called when a virtual * call of a pure virtual function cannot be made. */ // TODO: terminate in this extern "C" void __cxa_pure_call() { /* DUMMY BODY */ } __fundamental_type_info::~__fundamental_type_info() { /* DUMMY BODY */ } __array_type_info::~__array_type_info() { /* DUMMY BODY */ } __function_type_info::~__function_type_info() { /* DUMMY BODY */ } __enum_type_info::~__enum_type_info() { /* DUMMY BODY */ } __class_type_info::~__class_type_info() { /* DUMMY BODY */ } __si_class_type_info::~__si_class_type_info() { /* DUMMY BODY */ } __vmi_class_type_info::~__vmi_class_type_info() { /* DUMMY BODY */ } __pbase_type_info::~__pbase_type_info() { /* DUMMY BODY */ } __pointer_type_info::~__pointer_type_info() { /* DUMMY BODY */ } __pointer_to_member_type_info::~__pointer_to_member_type_info() { /* DUMMY BODY */ } /** * This structure represents part of the vtable segment * that contains data related to dynamic_cast. */ struct vtable { // Unimportant to us. std::ptrdiff_t offset_to_top; std::type_info* tinfo; // Actual vtable. }; extern "C" void* __dynamic_cast(const void* sub, const __class_type_info* src, const __class_type_info* dst, std::ptrdiff_t offset) { // TODO: implement // NOTE: as far as I understand it, we get vtable prefix from sub, get the type_info // ptr from that and then climb the inheritance hierarchy upwards till we either // fint dst or fail and return nullptr return nullptr; } }