57e446dafa
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 llvm-svn: 271267
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
//===------------------------ cxa_aux_runtime.cpp -------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//
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// This file implements the "Auxiliary Runtime APIs"
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// http://mentorembedded.github.io/cxx-abi/abi-eh.html#cxx-aux
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//===----------------------------------------------------------------------===//
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#include "cxxabi.h"
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#include <new>
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#include <typeinfo>
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namespace __cxxabiv1 {
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extern "C" {
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_LIBCXXABI_FUNC_VIS LIBCXXABI_NORETURN void __cxa_bad_cast(void) {
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#ifndef _LIBCXXABI_NO_EXCEPTIONS
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throw std::bad_cast();
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#else
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std::terminate();
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#endif
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}
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_LIBCXXABI_FUNC_VIS LIBCXXABI_NORETURN void __cxa_bad_typeid(void) {
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#ifndef _LIBCXXABI_NO_EXCEPTIONS
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throw std::bad_typeid();
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#else
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std::terminate();
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#endif
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}
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_LIBCXXABI_FUNC_VIS LIBCXXABI_NORETURN void
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__cxa_throw_bad_array_new_length(void) {
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#ifndef _LIBCXXABI_NO_EXCEPTIONS
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throw std::bad_array_new_length();
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#else
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std::terminate();
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#endif
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}
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} // extern "C"
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} // abi
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