/************************************************************************* * * $RCSfile: cpp2uno.cxx,v $ * * $Revision: 1.2 $ * * last change: $Author: hr $ $Date: 2003-04-28 16:28:42 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses * * - GNU Lesser General Public License Version 2.1 * - Sun Industry Standards Source License Version 1.1 * * Sun Microsystems Inc., October, 2000 * * GNU Lesser General Public License Version 2.1 * ============================================= * Copyright 2000 by Sun Microsystems, Inc. * 901 San Antonio Road, Palo Alto, CA 94303, USA * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License version 2.1, as published by the Free Software Foundation. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * * Sun Industry Standards Source License Version 1.1 * ================================================= * The contents of this file are subject to the Sun Industry Standards * Source License Version 1.1 (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.openoffice.org/license.html. * * Software provided under this License is provided on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. * See the License for the specific provisions governing your rights and * obligations concerning the Software. * * The Initial Developer of the Original Code is: Sun Microsystems, Inc. * * Copyright: 2000 by Sun Microsystems, Inc. * * All Rights Reserved. * * Contributor(s): _______________________________________ * * ************************************************************************/ #define LEAK_STATIC_DATA // #define TRACE(x) OSL_TRACE(x) #define TRACE(x) #include #include #include #include #ifndef _RTL_ALLOC_H_ #include #endif #ifndef _OSL_MUTEX_HXX_ #include #endif #ifndef _TYPELIB_TYPEDESCRIPTION_HXX_ #include #endif #ifndef _UNO_DATA_H_ #include #endif #ifndef _BRIDGES_CPP_UNO_BRIDGE_HXX_ #include #endif #ifndef _BRIDGES_CPP_UNO_TYPE_MISC_HXX_ #include #endif #include "share.hxx" using namespace com::sun::star::uno; using namespace std; using namespace osl; using namespace rtl; namespace CPPU_CURRENT_NAMESPACE { //================================================================================================== rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT; //================================================================================================== static typelib_TypeClass cpp2uno_call( cppu_cppInterfaceProxy * pThis, const typelib_TypeDescription * pMemberTypeDescr, typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return sal_Int32 nParams, typelib_MethodParameter * pParams, void ** pCallStack, sal_Int64 * pRegisterReturn /* space for register return */ ) { // pCallStack: [ret ptr], this, params char * pCppStack = (char *)pCallStack; // return typelib_TypeDescription * pReturnTypeDescr = 0; if (pReturnTypeRef) TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); void * pUnoReturn = 0; void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need if (pReturnTypeDescr) { if (cppu_isSimpleType( pReturnTypeDescr )) pUnoReturn = pRegisterReturn; // direct way for simple types else // complex return via ptr (pCppReturn) { pCppReturn = *(void**)pCppStack; pUnoReturn = (cppu_relatesToInterface( pReturnTypeDescr ) ? alloca( pReturnTypeDescr->nSize ) : pCppReturn); // direct way pCppStack += sizeof( void* ); } } // pop this pCppStack += sizeof( void* ); // stack space OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" ); // parameters void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams ); void ** pCppArgs = pUnoArgs + nParams; // indizes of values this have to be converted (interface conversion cpp<=>uno) sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams)); // type descriptions for reconversions typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams)); sal_Int32 nTempIndizes = 0; for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) { const typelib_MethodParameter & rParam = pParams[nPos]; typelib_TypeDescription * pParamTypeDescr = 0; TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); if (!rParam.bOut && cppu_isSimpleType( pParamTypeDescr )) // value { pCppArgs[nPos] = pUnoArgs[nPos] = adjustPointer( pCppStack, pParamTypeDescr ); switch (pParamTypeDescr->eTypeClass) { case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: case typelib_TypeClass_DOUBLE: pCppStack += sizeof(sal_Int32); // extra long } // no longer needed TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } else // ptr to complex value | ref { pCppArgs[nPos] = *(void **)pCppStack; if (! rParam.bIn) // is pure out { // uno out is unconstructed mem! pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ); pTempIndizes[nTempIndizes] = nPos; // will be released at reconversion ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; } // is in/inout else if (cppu_relatesToInterface( pParamTypeDescr )) { uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ), *(void **)pCppStack, pParamTypeDescr, &pThis->pBridge->aCpp2Uno ); pTempIndizes[nTempIndizes] = nPos; // has to be reconverted // will be released at reconversion ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; } else // direct way { pUnoArgs[nPos] = *(void **)pCppStack; // no longer needed TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } } pCppStack += sizeof(sal_Int32); // standard parameter length } // ExceptionHolder uno_Any aUnoExc; // Any will be constructed by callee uno_Any * pUnoExc = &aUnoExc; // invoke uno dispatch call (*pThis->pUnoI->pDispatcher)( pThis->pUnoI, pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc ); // in case an exception occured... if (pUnoExc) { // destruct temporary in/inout params for ( ; nTempIndizes--; ) { sal_Int32 nIndex = pTempIndizes[nTempIndizes]; if (pParams[nIndex].bIn) // is in/inout => was constructed uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 ); TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] ); } if (pReturnTypeDescr) TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); raiseException( &aUnoExc, &pThis->pBridge->aUno2Cpp ); // has to destruct the any // is here for dummy return typelib_TypeClass_VOID; } else // else no exception occured... { // temporary params for ( ; nTempIndizes--; ) { sal_Int32 nIndex = pTempIndizes[nTempIndizes]; typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes]; if (pParams[nIndex].bOut) // inout/out { // convert and assign uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr, &pThis->pBridge->aUno2Cpp ); } // destroy temp uno param uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } // return if (pCppReturn) // has complex return { if (pUnoReturn != pCppReturn) // needs reconversion { uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr, &pThis->pBridge->aUno2Cpp ); // destroy temp uno return uno_destructData( pUnoReturn, pReturnTypeDescr, 0 ); } // complex return ptr is set to eax *(void **)pRegisterReturn = pCppReturn; } if (pReturnTypeDescr) { typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass; TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); return eRet; } else return typelib_TypeClass_VOID; } } //================================================================================================== static typelib_TypeClass cpp_mediate( sal_Int32 nVtableCall, void ** pCallStack, sal_Int64 * pRegisterReturn /* space for register return */ ) { OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" ); // pCallStack: this, params // eventual [ret*] lies at pCallStack -1 // so count down pCallStack by one to keep it simple // _this_ ptr is patched cppu_XInterfaceProxy object cppu_cppInterfaceProxy * pCppI = NULL; pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*pCallStack; if( nVtableCall & 0x80000000 ) { pCallStack--; nVtableCall &= 0x7fffffff; } typelib_InterfaceTypeDescription * pTypeDescr = pCppI->pTypeDescr; OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" ); if (nVtableCall >= pTypeDescr->nMapFunctionIndexToMemberIndex) { throw RuntimeException( OUString::createFromAscii("illegal vtable index!"), (XInterface *)pCppI ); } // determine called method OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" ); sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nVtableCall]; OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" ); TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); #if defined BRIDGES_DEBUG OString cstr( OUStringToOString( aMemberDescr.get()->pTypeName, RTL_TEXTENCODING_ASCII_US ) ); fprintf( stderr, "calling %s, nVtableCall=%d\n", cstr.getStr(), nVtableCall ); #endif typelib_TypeClass eRet; switch (aMemberDescr.get()->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE: { if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nVtableCall) { // is GET method eRet = cpp2uno_call( pCppI, aMemberDescr.get(), ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef, 0, 0, // no params pCallStack, pRegisterReturn ); } else { // is SET method typelib_MethodParameter aParam; aParam.pTypeRef = ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef; aParam.bIn = sal_True; aParam.bOut = sal_False; eRet = cpp2uno_call( pCppI, aMemberDescr.get(), 0, // indicates void return 1, &aParam, pCallStack, pRegisterReturn ); } break; } case typelib_TypeClass_INTERFACE_METHOD: { // is METHOD switch (nVtableCall) { case 1: // acquire() pCppI->acquireProxy(); // non virtual call! eRet = typelib_TypeClass_VOID; break; case 2: // release() pCppI->releaseProxy(); // non virtual call! eRet = typelib_TypeClass_VOID; break; case 0: // queryInterface() opt { typelib_TypeDescription * pTD = 0; TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pCallStack[2] )->getTypeLibType() ); if (pTD) { XInterface * pInterface = 0; (*pCppI->pBridge->pCppEnv->getRegisteredInterface)( pCppI->pBridge->pCppEnv, (void **)&pInterface, pCppI->oid.pData, (typelib_InterfaceTypeDescription *)pTD ); if (pInterface) { ::uno_any_construct( reinterpret_cast< uno_Any * >( pCallStack[0] ), &pInterface, pTD, cpp_acquire ); pInterface->release(); TYPELIB_DANGER_RELEASE( pTD ); *(void **)pRegisterReturn = pCallStack[0]; eRet = typelib_TypeClass_ANY; break; } TYPELIB_DANGER_RELEASE( pTD ); } } // else perform queryInterface() default: eRet = cpp2uno_call( pCppI, aMemberDescr.get(), ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef, ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams, ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams, pCallStack, pRegisterReturn ); } break; } default: { throw RuntimeException( OUString::createFromAscii("no member description found!"), (XInterface *)pCppI ); // is here for dummy eRet = typelib_TypeClass_VOID; } } return eRet; } //================================================================================================== class MediateClassData { public: struct ClassDataBuffer { void* m_pVTable; ~ClassDataBuffer(); }; private: map< OUString, ClassDataBuffer* > m_aClassData; Mutex m_aMutex; void createVTable( ClassDataBuffer*, typelib_InterfaceTypeDescription* ); public: const ClassDataBuffer* getClassData( typelib_InterfaceTypeDescription* ); MediateClassData() {} ~MediateClassData(); }; //__________________________________________________________________________________________________ MediateClassData::ClassDataBuffer::~ClassDataBuffer() { delete m_pVTable; } //__________________________________________________________________________________________________ MediateClassData::~MediateClassData() { TRACE( "> calling ~MediateClassData(): freeing mediate vtables... <\n" ); // this MUST be the absolute last one which is called! for ( map< OUString, ClassDataBuffer* >::iterator iPos( m_aClassData.begin() ); iPos != m_aClassData.end(); ++iPos ) { // todo // delete (*iPos).second; } } //__________________________________________________________________________________________________ const MediateClassData::ClassDataBuffer* MediateClassData::getClassData( typelib_InterfaceTypeDescription* pType ) { MutexGuard aGuard( m_aMutex ); map< OUString, ClassDataBuffer* >::iterator element = m_aClassData.find( pType->aBase.pTypeName ); if( element != m_aClassData.end() ) return (*element).second; ClassDataBuffer* pBuffer = new ClassDataBuffer(); createVTable( pBuffer, pType ); m_aClassData[ pType->aBase.pTypeName ] = pBuffer; return pBuffer; } //================================================================================================== /** * is called on incoming vtable calls * (called by asm snippets) */ static void cpp_vtable_call() { int nTableEntry; void** pCallStack; volatile sal_Int64 nRegReturn; // nTableEntry and pCallStack are delivered in registers as usual // but cpp_vtable_call is declared void. // the reason is that this way the compiler won't clobber the // call stack prepared by the assembler snippet to save its input // registers // also restore %i2 here which was clobbered to jump here __asm__( "st %%i0, %0\n\t" "st %%i1, %1\n\t" "ld [%%fp+68], %%i0\n\t" "ld [%%fp+72], %%i1\n\t" "ld [%%fp+76], %%i2\n\t" : : "m"(nTableEntry), "m"(pCallStack) ); sal_Bool bComplex = nTableEntry & 0x80000000 ? sal_True : sal_False; typelib_TypeClass aType = cpp_mediate( nTableEntry, pCallStack+17, &nRegReturn ); switch( aType ) { case typelib_TypeClass_BOOLEAN: case typelib_TypeClass_BYTE: __asm__( "ld %0, %%l0\n\t" "ldsb [%%l0], %%i0\n" : : "m"(&nRegReturn) ); break; case typelib_TypeClass_CHAR: case typelib_TypeClass_SHORT: case typelib_TypeClass_UNSIGNED_SHORT: __asm__( "ld %0, %%l0\n\t" "ldsh [%%l0], %%i0\n" : : "m"(&nRegReturn) ); break; case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: __asm__( "ld %0, %%l0\n\t" "ld [%%l0], %%i0\n\t" "ld %1, %%l0\n\t" "ld [%%l0], %%i1\n\t" : : "m"(&nRegReturn), "m"(((long*)&nRegReturn) +1) ); break; case typelib_TypeClass_FLOAT: __asm__( "ld %0, %%l0\n\t" "ld [%%l0], %%f0\n" : : "m"(&nRegReturn) ); break; case typelib_TypeClass_DOUBLE: __asm__( "ld %0, %%l0\n\t" "ldd [%%l0], %%f0\n" : : "m"(&nRegReturn) ); break; case typelib_TypeClass_VOID: break; default: __asm__( "ld %0, %%l0\n\t" "ld [%%l0], %%i0\n" : : "m"(&nRegReturn) ); break; } if( bComplex ) { __asm__( "add %i7, 4, %i7\n\t" ); // after call to complex return valued funcion there is an unimp instruction } } //__________________________________________________________________________________________________ void MediateClassData::createVTable( ClassDataBuffer* pBuffer, typelib_InterfaceTypeDescription* pType ) { // get all member functions list< sal_Bool > aComplexReturn; for( int n = 0; n < pType->nAllMembers; n++ ) { typelib_TypeDescription* pMember = NULL; TYPELIB_DANGER_GET( &pMember, pType->ppAllMembers[n] ); if( pMember->eTypeClass == typelib_TypeClass_INTERFACE_ATTRIBUTE ) { typelib_TypeDescription * pRetTD = 0; TYPELIB_DANGER_GET( &pRetTD, ((typelib_InterfaceAttributeTypeDescription *)pMember)->pAttributeTypeRef ); // get method aComplexReturn.push_back( !cppu_isSimpleType( pRetTD ) ); // set method if( ! ((typelib_InterfaceAttributeTypeDescription*)pMember)->bReadOnly ) aComplexReturn.push_back( sal_False ); TYPELIB_DANGER_RELEASE( pRetTD ); } else { typelib_TypeDescription * pRetTD = 0; TYPELIB_DANGER_GET( &pRetTD, ((typelib_InterfaceMethodTypeDescription *)pMember)->pReturnTypeRef ); aComplexReturn.push_back( !cppu_isSimpleType( pRetTD ) ); TYPELIB_DANGER_RELEASE( pRetTD ); } TYPELIB_DANGER_RELEASE( pMember ); } int nSize = aComplexReturn.size(); const int nSnippetSize = 64; char * pSpace = (char *)rtl_allocateMemory( (2*(nSize+2)*sizeof(void *)) + (nSize*nSnippetSize) ); pBuffer->m_pVTable = (void*)pSpace; char * pCode = pSpace + (2*(nSize+2)*sizeof(void *)); void ** pvft = (void **)pSpace; // setup vft and code for ( sal_Int32 nPos = 0; nPos < nSize; ++nPos ) { unsigned long * codeSnip = (unsigned long *)(pCode + (nPos*nSnippetSize)); pvft[ nPos ] = codeSnip; unsigned long nTablePos = nPos; sal_Bool bComplex = aComplexReturn.front(); if( bComplex ) nTablePos |= 0x80000000; aComplexReturn.pop_front(); /* * generate this code * * st %o0, [%sp+68] save registers * st %o1, [%sp+72] * st %o2, [%sp+76] * st %o3, [%sp+80] * st %o4, [%sp+84] * st %o5, [%sp+88] * * mov %sp, %o1 prepare stack ptr for cpp_vtable_call * sethi %hi( nTablePos ), %o0 prepare table entry * or %lo( nTablePos ), %o0 (on complex return set high bit * * sethi $hi( cpp_vtable_call ), %l0 * or %l0, %lo( cpp_vtable_call ), %l0 * jmp %l0 * nop * * Note: %o0 should be restored by cpp_vtable_call if void returned * %o1 should be restored if not hyper returned * %o2 must be restored * */ *codeSnip++ = 0xd023a044; *codeSnip++ = 0xd223a048; *codeSnip++ = 0xd423a04c; *codeSnip++ = 0xd623a050; *codeSnip++ = 0xd823a054; *codeSnip++ = 0xda23a058; *codeSnip++ = 0x9210000e; *codeSnip++ = 0x11000000 | ( nTablePos >> 10 ); *codeSnip++ = 0x90122000 | ( nTablePos & 1023 ); *codeSnip++ = 0x15000000 | ( ((unsigned long)cpp_vtable_call) >> 10 ); *codeSnip++ = 0x9412a000 | ( ((unsigned long)cpp_vtable_call) & 1023 ); *codeSnip++ = 0x81c28000; *codeSnip++ = 0x01000000; } } //================================================================================================== void SAL_CALL cppu_cppInterfaceProxy_patchVtable( XInterface * pCppI, typelib_InterfaceTypeDescription * pTypeDescr ) throw () { static MediateClassData * s_pMediateClassData = 0; if (! s_pMediateClassData) { MutexGuard aGuard( Mutex::getGlobalMutex() ); if (! s_pMediateClassData) { #ifdef LEAK_STATIC_DATA s_pMediateClassData = new MediateClassData(); #else static MediateClassData s_aMediateClassData; s_pMediateClassData = &s_aMediateClassData; #endif } } *(const void **)pCppI = s_pMediateClassData->getClassData( pTypeDescr )->m_pVTable; } } //################################################################################################## extern "C" SAL_DLLEXPORT sal_Bool SAL_CALL component_canUnload( TimeValue * pTime ) SAL_THROW_EXTERN_C() { return CPPU_CURRENT_NAMESPACE::g_moduleCount.canUnload( &CPPU_CURRENT_NAMESPACE::g_moduleCount, pTime ); } //################################################################################################## extern "C" SAL_DLLEXPORT void SAL_CALL uno_initEnvironment( uno_Environment * pCppEnv ) SAL_THROW_EXTERN_C() { CPPU_CURRENT_NAMESPACE::cppu_cppenv_initEnvironment( pCppEnv ); } //################################################################################################## extern "C" SAL_DLLEXPORT void SAL_CALL uno_ext_getMapping( uno_Mapping ** ppMapping, uno_Environment * pFrom, uno_Environment * pTo ) SAL_THROW_EXTERN_C() { CPPU_CURRENT_NAMESPACE::cppu_ext_getMapping( ppMapping, pFrom, pTo ); }