From 4174e8b402ba05e3b3e003b1066f1eae6fbeb24b Mon Sep 17 00:00:00 2001 From: Asiri Rathnayake Date: Tue, 31 May 2016 12:01:32 +0000 Subject: [libcxxabi] Introduce a -fno-exceptions libc++abi libary variant Currently there is only support for a -fno-exceptions libc++ build. This is problematic for functions such as std::terminate() which are defined in libc++abi and using any of those functions throws away most of the benefits of using -fno-exceptions (code-size). This patch introduces a -fno-exceptions libc++abi build to address this issue. This new variant of libc++abi cannot be linked against any with-exceptions code as some symbols necessary for handling exceptions are missing in this library. Differential revision: http://reviews.llvm.org/D20677 Reviewers: EricWF, mclow.lists, bcraig git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@271267 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/noexception1.pass.cpp | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 test/noexception1.pass.cpp (limited to 'test/noexception1.pass.cpp') diff --git a/test/noexception1.pass.cpp b/test/noexception1.pass.cpp new file mode 100644 index 0000000..59d59a7 --- /dev/null +++ b/test/noexception1.pass.cpp @@ -0,0 +1,38 @@ +//===----------------------- noexception1.pass.cpp ------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: c++98, c++03 +// REQUIRES: libcxxabi-no-exceptions + +#include +#include +#include +#include + +// namespace __cxxabiv1 { +// void __cxa_increment_exception_refcount(void *thrown_object) throw(); +// } + +unsigned gCounter = 0; + +void my_terminate() { exit(0); } + +int main () +{ + // should not call std::terminate() + __cxxabiv1::__cxa_increment_exception_refcount(nullptr); + + std::set_terminate(my_terminate); + + // should call std::terminate() + __cxxabiv1::__cxa_increment_exception_refcount((void*) &gCounter); + assert(false); + + return 0; +} -- cgit v1.2.3