/************************************************************** * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ #include #include #include #include #include #include #include #include #include #include #include "com/sun/star/uno/RuntimeException.hpp" #include #include #include "share.hxx" using namespace ::std; using namespace ::osl; using namespace ::rtl; using namespace ::com::sun::star::uno; using namespace ::__cxxabiv1; extern sal_Int32 * pHack; extern sal_Int32 nHack; namespace CPPU_CURRENT_NAMESPACE { void dummy_can_throw_anything( char const * ) { } //=================================================================== static OUString toUNOname( char const * p ) SAL_THROW( () ) { #if OSL_DEBUG_LEVEL > 1 char const * start = p; #endif // example: N3com3sun4star4lang24IllegalArgumentExceptionE OUStringBuffer buf( 64 ); OSL_ASSERT( 'N' == *p ); ++p; // skip N while ('E' != *p) { // read chars count long n = (*p++ - '0'); while ('0' <= *p && '9' >= *p) { n *= 10; n += (*p++ - '0'); } buf.appendAscii( p, n ); p += n; if ('E' != *p) buf.append( (sal_Unicode)'.' ); } #if OSL_DEBUG_LEVEL > 1 OUString ret( buf.makeStringAndClear() ); OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) ); fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() ); return ret; #else return buf.makeStringAndClear(); #endif } //===================================================================== class RTTI { typedef hash_map< OUString, type_info *, OUStringHash > t_rtti_map; Mutex m_mutex; t_rtti_map m_rttis; t_rtti_map m_generatedRttis; void * m_hApp; public: RTTI() SAL_THROW( () ); ~RTTI() SAL_THROW( () ); type_info * getRTTI(typelib_CompoundTypeDescription *) SAL_THROW( () ); }; //____________________________________________________________________ RTTI::RTTI() SAL_THROW( () ) : m_hApp( dlopen( 0, RTLD_LAZY ) ) { } //____________________________________________________________________ RTTI::~RTTI() SAL_THROW( () ) { dlclose( m_hApp ); } //____________________________________________________________________ type_info * RTTI::getRTTI( typelib_CompoundTypeDescription *pTypeDescr ) SAL_THROW( () ) { type_info * rtti; OUString const & unoName = *(OUString const *)&pTypeDescr->aBase.pTypeName; MutexGuard guard( m_mutex ); t_rtti_map::const_iterator iFind( m_rttis.find( unoName ) ); if (iFind == m_rttis.end()) { // RTTI symbol OStringBuffer buf( 64 ); buf.append( RTL_CONSTASCII_STRINGPARAM("_ZTIN") ); sal_Int32 index = 0; do { OUString token( unoName.getToken( 0, '.', index ) ); buf.append( token.getLength() ); OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) ); buf.append( c_token ); } while (index >= 0); buf.append( 'E' ); OString symName( buf.makeStringAndClear() ); rtti = (type_info *)dlsym( m_hApp, symName.getStr() ); if (rtti) { pair< t_rtti_map::iterator, bool > insertion( m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); OSL_ENSURE( insertion.second, "### inserting new rtti failed?!" ); } else { // try to lookup the symbol in the generated rtti map t_rtti_map::const_iterator iFind2( m_generatedRttis.find( unoName ) ); if (iFind2 == m_generatedRttis.end()) { // we must generate it ! // symbol and rtti-name is nearly identical, // the symbol is prefixed with _ZTI char const * rttiName = symName.getStr() +4; #if OSL_DEBUG_LEVEL > 1 fprintf( stderr,"generated rtti for %s\n", rttiName ); #endif if (pTypeDescr->pBaseTypeDescription) { // ensure availability of base type_info * base_rtti = getRTTI( (typelib_CompoundTypeDescription *)pTypeDescr->pBaseTypeDescription ); rtti = new __si_class_type_info( strdup( rttiName ), (__class_type_info *)base_rtti ); } else { // this class has no base class rtti = new __class_type_info( strdup( rttiName ) ); } pair< t_rtti_map::iterator, bool > insertion( m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); OSL_ENSURE( insertion.second, "### inserting new generated rtti failed?!" ); } else // taking already generated rtti { rtti = iFind2->second; } } } else { rtti = iFind->second; } return rtti; } //------------------------------------------------------------------ static void deleteException( void * pExc ) { __cxa_exception const * header = ((__cxa_exception const *)pExc - 1); typelib_TypeDescription * pTD = 0; OUString unoName( toUNOname( header->exceptionType->name() ) ); ::typelib_typedescription_getByName( &pTD, unoName.pData ); OSL_ENSURE( pTD, "### unknown exception type! leaving out destruction => leaking!!!" ); if (pTD) { ::uno_destructData( pExc, pTD, cpp_release ); ::typelib_typedescription_release( pTD ); } } //================================================================== void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp ) { #if OSL_DEBUG_LEVEL > 1 OString cstr( OUStringToOString( *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), RTL_TEXTENCODING_ASCII_US ) ); fprintf( stderr, "> uno exception occured: %s\n", cstr.getStr() ); #endif void * pCppExc; type_info * rtti; { // construct cpp exception object typelib_TypeDescription * pTypeDescr = 0; TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType ); OSL_ASSERT( pTypeDescr ); if (! pTypeDescr) { throw RuntimeException( OUString( RTL_CONSTASCII_USTRINGPARAM("cannot get typedescription for type ") ) + *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), Reference< XInterface >() ); } pCppExc = __cxa_allocate_exception( pTypeDescr->nSize ); ::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp ); // destruct uno exception ::uno_any_destruct( pUnoExc, 0 ); // avoiding locked counts static RTTI * s_rtti = 0; if (! s_rtti) { MutexGuard guard( Mutex::getGlobalMutex() ); if (! s_rtti) { #ifdef LEAK_STATIC_DATA s_rtti = new RTTI(); #else static RTTI rtti_data; s_rtti = &rtti_data; #endif } } rtti = (type_info *)s_rtti->getRTTI( (typelib_CompoundTypeDescription *) pTypeDescr ); TYPELIB_DANGER_RELEASE( pTypeDescr ); OSL_ENSURE( rtti, "### no rtti for throwing exception!" ); if (! rtti) { throw RuntimeException( OUString( RTL_CONSTASCII_USTRINGPARAM("no rtti for type ") ) + *reinterpret_cast< OUString const * >( &pUnoExc->pType->pTypeName ), Reference< XInterface >() ); } } __cxa_throw( pCppExc, rtti, deleteException ); } #ifdef __ARM_EABI__ static void* getAdjustedPtr(__cxa_exception* header) { return (void*)header->unwindHeader.barrier_cache.bitpattern[0]; } #else static void* getAdjustedPtr(__cxa_exception* header) { return header->adjustedPtr; } #endif //=================================================================== void fillUnoException( __cxa_exception * header, uno_Any * pUnoExc, uno_Mapping * pCpp2Uno ) { if (! header) { RuntimeException aRE( OUString( RTL_CONSTASCII_USTRINGPARAM("no exception header!") ), Reference< XInterface >() ); Type const & rType = ::getCppuType( &aRE ); uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); #if OSL_DEBUG_LEVEL > 0 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) ); OSL_ENSURE( 0, cstr.getStr() ); #endif return; } typelib_TypeDescription * pExcTypeDescr = 0; OUString unoName( toUNOname( header->exceptionType->name() ) ); #if OSL_DEBUG_LEVEL > 1 OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) ); fprintf( stderr, "> c++ exception occured: %s\n", cstr_unoName.getStr() ); #endif typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData ); if (0 == pExcTypeDescr) { RuntimeException aRE( OUString( RTL_CONSTASCII_USTRINGPARAM("exception type not found: ") ) + unoName, Reference< XInterface >() ); Type const & rType = ::getCppuType( &aRE ); uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); #if OSL_DEBUG_LEVEL > 0 OString cstr( OUStringToOString( aRE.Message, RTL_TEXTENCODING_ASCII_US ) ); OSL_ENSURE( 0, cstr.getStr() ); #endif } else { // construct uno exception any uno_any_constructAndConvert( pUnoExc, getAdjustedPtr(header), pExcTypeDescr, pCpp2Uno ); typelib_typedescription_release( pExcTypeDescr ); } } } /* vi:set tabstop=4 shiftwidth=4 expandtab: */