gcc/libstdc++-v3/libsupc++/cxxabi_init_exception.h
Gleb Natapov 27abac2648 libstdc++/68297 avoid throw/catch in make_exception_ptr
2016-08-22  Gleb Natapov  <gleb@scylladb.com>

	PR libstdc++/68297
	* config/abi/pre/gnu-versioned-namespace.ver: Export
	__cxa_init_primary_exception and std::exception_ptr(void*).
	* config/abi/pre/gnu.ver (CXXABI_1.3.11) : Add new symbol version and
	export __cxa_init_primary_exception and std::exception_ptr(void*).
	* include/Makefile.am: Add new headers.
	* include/Makefile.in: Regenerate.
	* libsupc++/Makefile.am: Add new headers.
	* libsupc++/Makefile.in: Regenerate.
	* libsupc++/cxxabi.h (__cxa_allocate_exception): Move to ...
	* libsupc++/cxxabi_init_exception.h: New header.
	(__cxa_init_primary_exception): Declare.
	* libsupc++/eh_throw.cc (__cxa_init_primary_exception): Define.
	(__cxa_throw): Use __cxa_init_primary_exception.
	* libsupc++/exception (std::exception): Move to ...
	* libsupc++/exception.h: New header.
	* libsupc++/exception_ptr.h (__exception_ptr::exception_ptr): Add
	friend declaration.
	(__exception_ptr::__dest_thunk): New function template.
	(std::make_exception_ptr) [__cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI]:
	Use __cxa_allocate_exception and __cxa_init_primary_exception to
	create exception_ptr.
	* libsupc++/typeinfo: Include bits/exception.h instead of exception.
	* testsuite/util/testsuite_abi.cc: Add CXXABI_1.3.11 version.

From-SVN: r239664
2016-08-22 18:29:31 +01:00

78 lines
2.1 KiB
C++

// ABI Support -*- C++ -*-
// Copyright (C) 2016 Free Software Foundation, Inc.
//
// This file is part of GCC.
//
// GCC is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3, or (at your option)
// any later version.
//
// GCC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file bits/cxxabi_init_exception.h
* This is an internal header file, included by other library headers.
* Do not attempt to use it directly.
*/
#ifndef _CXXABI_INIT_EXCEPTION_H
#define _CXXABI_INIT_EXCEPTION_H 1
#pragma GCC system_header
#pragma GCC visibility push(default)
#include <stddef.h>
#include <bits/c++config.h>
#ifndef _GLIBCXX_CDTOR_CALLABI
#define _GLIBCXX_CDTOR_CALLABI
#define _GLIBCXX_HAVE_CDTOR_CALLABI 0
#else
#define _GLIBCXX_HAVE_CDTOR_CALLABI 1
#endif
#ifdef __cplusplus
namespace std
{
class type_info;
}
namespace __cxxabiv1
{
struct __cxa_refcounted_exception;
extern "C"
{
// Allocate memory for the primary exception plus the thrown object.
void*
__cxa_allocate_exception(size_t) _GLIBCXX_NOTHROW;
// Initialize exception (this is a GNU extension)
__cxa_refcounted_exception*
__cxa_init_primary_exception(void *object, std::type_info *tinfo,
void (_GLIBCXX_CDTOR_CALLABI *dest) (void *)) _GLIBCXX_NOTHROW;
}
} // namespace __cxxabiv1
#endif
#pragma GCC visibility pop
#endif // _CXXABI_INIT_EXCEPTION_H