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 9 // Forced unwinding causes std::terminate when going through noexcept. 10 11 // UNSUPPORTED: no-exceptions, c++03 12 13 // These tests fail on previously released dylibs, investigation needed. 14 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}} 15 16 #include <exception> 17 #include <stdlib.h> 18 #include <stdio.h> 19 #include <string.h> 20 #include <unwind.h> 21 #include <tuple> 22 #include <__cxxabi_config.h> 23 24 #if defined(_LIBCXXABI_ARM_EHABI) 25 int main(int, char**) { 26 return 0; 27 } 28 #else 29 template <typename T> 30 struct Stop; 31 32 template <typename R, typename... Args> 33 struct Stop<R (*)(Args...)> { 34 // The third argument of _Unwind_Stop_Fn is uint64_t in Itanium C++ ABI/LLVM 35 // libunwind while _Unwind_Exception_Class in libgcc. 36 typedef typename std::tuple_element<2, std::tuple<Args...>>::type type; 37 38 static _Unwind_Reason_Code stop(int, _Unwind_Action actions, type, 39 struct _Unwind_Exception*, 40 struct _Unwind_Context*, void*) { 41 if (actions & _UA_END_OF_STACK) 42 abort(); 43 return _URC_NO_REASON; 44 } 45 }; 46 47 static void forced_unwind() { 48 _Unwind_Exception* exc = new _Unwind_Exception; 49 exc->exception_class = 0; 50 exc->exception_cleanup = 0; 51 _Unwind_ForcedUnwind(exc, Stop<_Unwind_Stop_Fn>::stop, 0); 52 abort(); 53 } 54 55 static void test() noexcept { forced_unwind(); } 56 57 static void terminate() { exit(0); } 58 59 int main(int, char**) { 60 std::set_terminate(terminate); 61 try { 62 test(); 63 } catch (...) { 64 } 65 abort(); 66 } 67 #endif 68