1//===----------------------------------------------------------------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7// 8// This file implements the "Exception Handling APIs" 9// https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html 10// 11//===----------------------------------------------------------------------===// 12 13// Support functions for the no-exceptions libc++ library 14 15#include "cxxabi.h" 16 17#include <exception> // for std::terminate 18#include "cxa_exception.h" 19#include "cxa_handlers.h" 20 21namespace __cxxabiv1 { 22 23extern "C" { 24 25void 26__cxa_increment_exception_refcount(void *thrown_object) throw() { 27 if (thrown_object != nullptr) 28 std::terminate(); 29} 30 31void 32__cxa_decrement_exception_refcount(void *thrown_object) throw() { 33 if (thrown_object != nullptr) 34 std::terminate(); 35} 36 37 38void *__cxa_current_primary_exception() throw() { return nullptr; } 39 40void 41__cxa_rethrow_primary_exception(void* thrown_object) { 42 if (thrown_object != nullptr) 43 std::terminate(); 44} 45 46bool 47__cxa_uncaught_exception() throw() { return false; } 48 49unsigned int 50__cxa_uncaught_exceptions() throw() { return 0; } 51 52} // extern "C" 53 54// provide dummy implementations for the 'no exceptions' case. 55uint64_t __getExceptionClass (const _Unwind_Exception*) { return 0; } 56void __setExceptionClass ( _Unwind_Exception*, uint64_t) {} 57bool __isOurExceptionClass(const _Unwind_Exception*) { return false; } 58 59} // abi 60