1*4bdff4beSrobert //===----------------------------------------------------------------------===// 2*4bdff4beSrobert // 3*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 5*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*4bdff4beSrobert // 7*4bdff4beSrobert //===----------------------------------------------------------------------===// 8*4bdff4beSrobert 9*4bdff4beSrobert #include <__config> 10*4bdff4beSrobert #include <cstdio> 11*4bdff4beSrobert #include <cstdlib> 12*4bdff4beSrobert #include <string> 13*4bdff4beSrobert 14*4bdff4beSrobert // This file defines the legacy default debug handler and related mechanisms 15*4bdff4beSrobert // to set it. This is for backwards ABI compatibility with code that has been 16*4bdff4beSrobert // using this debug handler previously. 17*4bdff4beSrobert 18*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 19*4bdff4beSrobert 20*4bdff4beSrobert struct _LIBCPP_TEMPLATE_VIS __libcpp_debug_info { 21*4bdff4beSrobert _LIBCPP_EXPORTED_FROM_ABI string what() const; 22*4bdff4beSrobert 23*4bdff4beSrobert const char* __file_; 24*4bdff4beSrobert int __line_; 25*4bdff4beSrobert const char* __pred_; 26*4bdff4beSrobert const char* __msg_; 27*4bdff4beSrobert }; 28*4bdff4beSrobert what() const29*4bdff4beSrobertstd::string __libcpp_debug_info::what() const { 30*4bdff4beSrobert string msg = __file_; 31*4bdff4beSrobert msg += ":" + std::to_string(__line_) + ": _LIBCPP_ASSERT '"; 32*4bdff4beSrobert msg += __pred_; 33*4bdff4beSrobert msg += "' failed. "; 34*4bdff4beSrobert msg += __msg_; 35*4bdff4beSrobert return msg; 36*4bdff4beSrobert } 37*4bdff4beSrobert __libcpp_abort_debug_function(__libcpp_debug_info const & info)38*4bdff4beSrobert_LIBCPP_NORETURN _LIBCPP_EXPORTED_FROM_ABI void __libcpp_abort_debug_function(__libcpp_debug_info const& info) { 39*4bdff4beSrobert std::fprintf(stderr, "%s\n", info.what().c_str()); 40*4bdff4beSrobert std::abort(); 41*4bdff4beSrobert } 42*4bdff4beSrobert 43*4bdff4beSrobert typedef void (*__libcpp_debug_function_type)(__libcpp_debug_info const&); 44*4bdff4beSrobert 45*4bdff4beSrobert _LIBCPP_EXPORTED_FROM_ABI 46*4bdff4beSrobert constinit __libcpp_debug_function_type __libcpp_debug_function = __libcpp_abort_debug_function; 47*4bdff4beSrobert 48*4bdff4beSrobert _LIBCPP_EXPORTED_FROM_ABI __libcpp_set_debug_function(__libcpp_debug_function_type __func)49*4bdff4beSrobertbool __libcpp_set_debug_function(__libcpp_debug_function_type __func) { 50*4bdff4beSrobert __libcpp_debug_function = __func; 51*4bdff4beSrobert return true; 52*4bdff4beSrobert } 53*4bdff4beSrobert 54*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 55