5ba3d1740b
At least Clang trunk towards 3.4 now rejects incompatible declarations of the same extern "C" function in different namespaces, so that trick of getting at the function that is exported by libstdc++ but only rudimentarily if at all exposed in cxxabi.h no longer worked. TODO: This change should be reflected in any other bridges where it is relevant, too. Change-Id: Ie3ccbdb7d75cc98636d02c0435958532620724f2
114 lines
3.8 KiB
C++
114 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include "sal/config.h"
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#include <typeinfo>
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#include <exception>
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#include <cstddef>
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#include <cxxabi.h>
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#ifndef _GLIBCXX_CDTOR_CALLABI // new in GCC 4.7 cxxabi.h
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#define _GLIBCXX_CDTOR_CALLABI
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#endif
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#include "config_gcc.h"
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#include "uno/mapping.h"
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namespace CPPU_CURRENT_NAMESPACE
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{
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// ----- following decl from libstdc++-v3/libsupc++/unwind-cxx.h and unwind.h
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struct _Unwind_Exception
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{
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unsigned exception_class __attribute__((__mode__(__DI__)));
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void * exception_cleanup;
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unsigned private_1 __attribute__((__mode__(__word__)));
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unsigned private_2 __attribute__((__mode__(__word__)));
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} __attribute__((__aligned__));
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struct __cxa_exception
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{
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::std::type_info *exceptionType;
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void (*exceptionDestructor)(void *);
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::std::unexpected_handler unexpectedHandler;
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::std::terminate_handler terminateHandler;
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__cxa_exception *nextException;
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int handlerCount;
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int handlerSwitchValue;
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const unsigned char *actionRecord;
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const unsigned char *languageSpecificData;
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void *catchTemp;
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void *adjustedPtr;
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_Unwind_Exception unwindHeader;
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};
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struct __cxa_eh_globals
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{
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__cxa_exception *caughtExceptions;
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unsigned int uncaughtExceptions;
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};
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}
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// __cxa_get_globals is exported from libstdc++ since GCC 3.4.0 (CXXABI_1.3),
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// but it is only declared in cxxabi.h (in namespace __cxxabiv1) since
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// GCC 4.7.0. It returns a pointer to a struct __cxa_eh_globals, but that
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// struct is only incompletely declared even in the GCC 4.7.0 cxxabi.h.
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// Therefore, provide a declaration here for old GCC (libstdc++, really) version
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// that returns a void pointer, and in the code calling it always cast to the
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// above fake definition of CPPU_CURRENT_NAMESPACE::__cxa_eh_globals (which
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// hopefully keeps matching the real definition in libstdc++):
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#if !HAVE_GCC_CXXABI_H_CXA_GET_GLOBALS
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namespace __cxxabiv1 { extern "C" void * __cxa_get_globals () throw(); }
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#endif
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namespace CPPU_CURRENT_NAMESPACE
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{
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// The following are in cxxabi.h since GCC 4.7 (they are wrapped in
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// CPPU_CURRENT_NAMESPACE here as different GCC versions have slightly different
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// declarations for them, e.g., with or without throw() specification, so would
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// complain about redeclarations of these somewhat implicitly declared
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// functions):
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#if __GNUC__ == 4 && __GNUC_MINOR__ <= 6
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extern "C" void *__cxa_allocate_exception(
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std::size_t thrown_size ) throw();
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extern "C" void __cxa_throw (
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void *thrown_exception, void *tinfo, void (*dest) (void *) ) __attribute__((noreturn));
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#endif
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// -----
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//==================================================================================================
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void raiseException(
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uno_Any * pUnoExc, uno_Mapping * pUno2Cpp );
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//==================================================================================================
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void fillUnoException(
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__cxa_exception * header, uno_Any *, uno_Mapping * pCpp2Uno );
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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