Mercurial > hg > CbC > CbC_llvm
view libcxxabi/test/forced_unwind1.pass.cpp @ 252:1f2b6ac9f198 llvm-original
LLVM16-1
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Fri, 18 Aug 2023 09:04:13 +0900 |
parents | c4bab56944e8 |
children |
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//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // _Unwind_ForcedUnwind raised exception can be caught by catch (...) and be // rethrown. If not rethrown, exception_cleanup will be called. // UNSUPPORTED: no-exceptions, c++03 // These tests fail on previously released dylibs, investigation needed. // XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}} // XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx{{11.0|12.0}} #include <stdlib.h> #include <string.h> #include <unwind.h> #include <tuple> #include <__cxxabi_config.h> static int bits = 0; struct C { int bit; C(int b) : bit(b) {} ~C() { bits |= bit; } }; template <typename T> struct Stop; template <typename R, typename... Args> struct Stop<R (*)(Args...)> { // The third argument of _Unwind_Stop_Fn is uint64_t in Itanium C++ ABI/LLVM // libunwind while _Unwind_Exception_Class in libgcc. typedef typename std::tuple_element<2, std::tuple<Args...>>::type type; static _Unwind_Reason_Code stop(int, _Unwind_Action actions, type, struct _Unwind_Exception*, struct _Unwind_Context*, void*) { if (actions & _UA_END_OF_STACK) abort(); return _URC_NO_REASON; } }; static void cleanup(_Unwind_Reason_Code, struct _Unwind_Exception* exc) { bits |= 8; delete exc; } static void forced_unwind() { _Unwind_Exception* exc = new _Unwind_Exception; memset(&exc->exception_class, 0, sizeof(exc->exception_class)); exc->exception_cleanup = cleanup; _Unwind_ForcedUnwind(exc, Stop<_Unwind_Stop_Fn>::stop, 0); abort(); } static void test() { try { C four(4); try { C one(1); forced_unwind(); } catch (...) { bits |= 2; throw; } } catch (int) { } catch (...) { // __cxa_end_catch calls cleanup. } } int main(int, char**) { test(); return bits != 15; }