64 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9// Forced unwinding causes std::terminate when going through noexcept.10 11// UNSUPPORTED: no-exceptions, c++0312 13// VE only supports SjLj and doesn't provide _Unwind_ForcedUnwind.14// UNSUPPORTED: target={{ve-.*}}15 16// These tests fail on previously released dylibs, investigation needed.17// XFAIL: stdlib=system && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}}18// XFAIL: stdlib=system && target={{.+}}-apple-macosx{{11.0|12.0}}19 20#include <exception>21#include <stdlib.h>22#include <stdio.h>23#include <string.h>24#include <unwind.h>25#include <tuple>26#include <__cxxabi_config.h>27 28template <typename T>29struct Stop;30 31template <typename R, typename... Args>32struct Stop<R (*)(Args...)> {33 // The third argument of _Unwind_Stop_Fn is uint64_t in Itanium C++ ABI/LLVM34 // libunwind while _Unwind_Exception_Class in libgcc.35 typedef typename std::tuple_element<2, std::tuple<Args...>>::type type;36 37 static _Unwind_Reason_Code stop(int, _Unwind_Action actions, type,38 struct _Unwind_Exception*,39 struct _Unwind_Context*, void*) {40 if (actions & _UA_END_OF_STACK)41 abort();42 return _URC_NO_REASON;43 }44};45 46static void forced_unwind() {47 static _Unwind_Exception exc = {};48 _Unwind_ForcedUnwind(&exc, Stop<_Unwind_Stop_Fn>::stop, 0);49 abort();50}51 52static void test() noexcept { forced_unwind(); }53 54static void terminate() { exit(0); }55 56int main(int, char**) {57 std::set_terminate(terminate);58 try {59 test();60 } catch (...) {61 }62 abort();63}64