mirror of
https://github.com/freebsd/freebsd-src
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56aaed388b
Interesting fixes: 47661d0 Match libc++abi/libsupc++ when demangling array types e44a05c Fix unitialized variable in __cxa_demangle_gnu3 after #6 (#8) 5088b05 Remove some code duplication. fd484be Atomics cleanup (#11) MFC after: 2 weeks
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
/*
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* Copyright 2010-2011 PathScale, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
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* IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* aux.cc - Compiler helper functions.
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*
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* The functions declared in this file are intended to be called only by code
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* that is automatically generated by C++ compilers for some common cases.
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*/
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#include <stdlib.h>
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#include "stdexcept.h"
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namespace {
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/**
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* Throw an exception if we're compiling with exceptions, otherwise abort.
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*/
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template<typename T>
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void throw_exception()
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{
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#if !defined(_CXXRT_NO_EXCEPTIONS)
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throw T();
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#else
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abort();
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#endif
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}
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}
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/**
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* Called to generate a bad cast exception. This function is intended to allow
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* compilers to insert code generating this exception without needing to
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* duplicate the code for throwing the exception in every call site.
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*/
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extern "C" void __cxa_bad_cast()
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{
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throw_exception<std::bad_cast>();
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}
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/**
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* Called to generate a bad typeid exception. This function is intended to
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* allow compilers to insert code generating this exception without needing to
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* duplicate the code for throwing the exception in every call site.
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*/
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extern "C" void __cxa_bad_typeid()
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{
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throw_exception<std::bad_typeid>();
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}
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/**
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* Compilers may (but are not required to) set any pure-virtual function's
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* vtable entry to this function. This makes debugging slightly easier, as
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* users can add a breakpoint on this function to tell if they've accidentally
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* called a pure-virtual function.
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*/
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extern "C" void __cxa_pure_virtual()
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{
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abort();
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}
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/**
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* Compilers may (but are not required to) set any deleted-virtual function's
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* vtable entry to this function. This makes debugging slightly easier, as
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* users can add a breakpoint on this function to tell if they've accidentally
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* called a deleted-virtual function.
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*/
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extern "C" void __cxa_deleted_virtual()
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{
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abort();
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}
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extern "C" void __cxa_throw_bad_array_new_length()
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{
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throw_exception<std::bad_array_new_length>();
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}
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