|  | /************************************************************** | 
|  | * | 
|  | * 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. | 
|  | * | 
|  | *************************************************************/ | 
|  |  | 
|  |  | 
|  |  | 
|  | // MARKER(update_precomp.py): autogen include statement, do not remove | 
|  | #include "precompiled_bridges.hxx" | 
|  |  | 
|  | #include <sal/alloca.h> | 
|  | #include <rtl/alloc.h> | 
|  |  | 
|  | #include <uno/data.h> | 
|  | #include <bridges/cpp_uno/bridge.hxx> | 
|  | #include <bridges/cpp_uno/type_misc.hxx> | 
|  |  | 
|  | #include "share.hxx" | 
|  |  | 
|  |  | 
|  | using namespace ::rtl; | 
|  | using namespace ::com::sun::star::uno; | 
|  |  | 
|  | namespace CPPU_CURRENT_NAMESPACE | 
|  | { | 
|  |  | 
|  | void dummy_can_throw_anything( char const * ); | 
|  |  | 
|  | //================================================================================================== | 
|  | // The call instruction within the asm section of callVirtualMethod may throw | 
|  | // exceptions.  So that the compiler handles this correctly, it is important | 
|  | // that (a) callVirtualMethod might call dummy_can_throw_anything (although this | 
|  | // never happens at runtime), which in turn can throw exceptions, and (b) | 
|  | // callVirtualMethod is not inlined at its call site (so that any exceptions are | 
|  | // caught which are thrown from the instruction calling callVirtualMethod): | 
|  | void callVirtualMethod( | 
|  | void * pThis, | 
|  | sal_Int32 nVtableIndex, | 
|  | void * pRegisterReturn, | 
|  | typelib_TypeClass eReturnType, | 
|  | sal_Int32 * pStackLongs, | 
|  | sal_Int32 nStackLongs ) __attribute__((noinline)); | 
|  |  | 
|  | void callVirtualMethod( | 
|  | void * pThis, | 
|  | sal_Int32 nVtableIndex, | 
|  | void * pRegisterReturn, | 
|  | typelib_TypeClass eReturnType, | 
|  | sal_Int32 * pStackLongs, | 
|  | sal_Int32 nStackLongs ) | 
|  | { | 
|  | // parameter list is mixed list of * and values | 
|  | // reference parameters are pointers | 
|  |  | 
|  | OSL_ENSURE( pStackLongs && pThis, "### null ptr!" ); | 
|  | OSL_ENSURE( (sizeof(void *) == 4) && (sizeof(sal_Int32) == 4), "### unexpected size of int!" ); | 
|  | OSL_ENSURE( nStackLongs && pStackLongs, "### no stack in callVirtualMethod !" ); | 
|  |  | 
|  | // never called | 
|  | if (! pThis) dummy_can_throw_anything("xxx"); // address something | 
|  |  | 
|  | volatile long edx = 0, eax = 0; // for register returns | 
|  | void * stackptr; | 
|  | asm volatile ( | 
|  | "mov   %%esp, %6\n\t" | 
|  | // copy values | 
|  | "mov   %0, %%eax\n\t" | 
|  | "mov   %%eax, %%edx\n\t" | 
|  | "dec   %%edx\n\t" | 
|  | "shl   $2, %%edx\n\t" | 
|  | "add   %1, %%edx\n" | 
|  | "Lcopy:\n\t" | 
|  | "pushl 0(%%edx)\n\t" | 
|  | "sub   $4, %%edx\n\t" | 
|  | "dec   %%eax\n\t" | 
|  | "jne   Lcopy\n\t" | 
|  | // do the actual call | 
|  | "mov   %2, %%edx\n\t" | 
|  | "mov   0(%%edx), %%edx\n\t" | 
|  | "mov   %3, %%eax\n\t" | 
|  | "shl   $2, %%eax\n\t" | 
|  | "add   %%eax, %%edx\n\t" | 
|  | "mov   0(%%edx), %%edx\n\t" | 
|  | "call  *%%edx\n\t" | 
|  | // save return registers | 
|  | "mov   %%eax, %4\n\t" | 
|  | "mov   %%edx, %5\n\t" | 
|  | // cleanup stack | 
|  | "mov   %6, %%esp\n\t" | 
|  | : | 
|  | : "m"(nStackLongs), "m"(pStackLongs), "m"(pThis), "m"(nVtableIndex), | 
|  | "m"(eax), "m"(edx), "m"(stackptr) | 
|  | : "eax", "edx" ); | 
|  | switch( eReturnType ) | 
|  | { | 
|  | case typelib_TypeClass_HYPER: | 
|  | case typelib_TypeClass_UNSIGNED_HYPER: | 
|  | ((long*)pRegisterReturn)[1] = edx; | 
|  | case typelib_TypeClass_LONG: | 
|  | case typelib_TypeClass_UNSIGNED_LONG: | 
|  | case typelib_TypeClass_CHAR: | 
|  | case typelib_TypeClass_ENUM: | 
|  | ((long*)pRegisterReturn)[0] = eax; | 
|  | break; | 
|  | case typelib_TypeClass_SHORT: | 
|  | case typelib_TypeClass_UNSIGNED_SHORT: | 
|  | *(unsigned short*)pRegisterReturn = eax; | 
|  | break; | 
|  | case typelib_TypeClass_BOOLEAN: | 
|  | case typelib_TypeClass_BYTE: | 
|  | *(unsigned char*)pRegisterReturn = eax; | 
|  | break; | 
|  | case typelib_TypeClass_FLOAT: | 
|  | asm ( "fstps %0" : : "m"(*(char *)pRegisterReturn) ); | 
|  | break; | 
|  | case typelib_TypeClass_DOUBLE: | 
|  | asm ( "fstpl %0\n\t" : : "m"(*(char *)pRegisterReturn) ); | 
|  | break; | 
|  | } | 
|  | } | 
|  |  | 
|  | //================================================================================================== | 
|  | static void cpp_call( | 
|  | cppu_unoInterfaceProxy * pThis, | 
|  | sal_Int32 nVtableCall, | 
|  | typelib_TypeDescriptionReference * pReturnTypeRef, | 
|  | sal_Int32 nParams, typelib_MethodParameter * pParams, | 
|  | void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc ) | 
|  | { | 
|  | // max space for: [complex ret ptr], values|ptr ... | 
|  | char * pCppStack		= | 
|  | (char *)alloca( sizeof(sal_Int32) + ((nParams+2) * sizeof(sal_Int64)) ); | 
|  | char * pCppStackStart	= pCppStack; | 
|  |  | 
|  | // return | 
|  | typelib_TypeDescription * pReturnTypeDescr = 0; | 
|  | TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); | 
|  | OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" ); | 
|  |  | 
|  | void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion | 
|  |  | 
|  | if (pReturnTypeDescr) | 
|  | { | 
|  | if (cppu_isSimpleType( pReturnTypeDescr )) | 
|  | { | 
|  | pCppReturn = pUnoReturn; // direct way for simple types | 
|  | } | 
|  | else | 
|  | { | 
|  | // complex return via ptr | 
|  | pCppReturn = *(void **)pCppStack = (cppu_relatesToInterface( pReturnTypeDescr ) | 
|  | ? alloca( pReturnTypeDescr->nSize ) | 
|  | : pUnoReturn); // direct way | 
|  | pCppStack += sizeof(void *); | 
|  | } | 
|  | } | 
|  | // push this | 
|  | *(void**)pCppStack = pThis->pCppI; | 
|  | pCppStack += sizeof( void* ); | 
|  |  | 
|  | // stack space | 
|  | OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" ); | 
|  | // args | 
|  | void ** pCppArgs  = (void **)alloca( 3 * sizeof(void *) * nParams ); | 
|  | // indizes of values this have to be converted (interface conversion cpp<=>uno) | 
|  | sal_Int32 * pTempIndizes = (sal_Int32 *)(pCppArgs + nParams); | 
|  | // type descriptions for reconversions | 
|  | typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * 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 )) | 
|  | { | 
|  | uno_copyAndConvertData( pCppArgs[nPos] = pCppStack, pUnoArgs[nPos], pParamTypeDescr, | 
|  | &pThis->pBridge->aUno2Cpp ); | 
|  |  | 
|  | 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 | 
|  | { | 
|  | if (! rParam.bIn) // is pure out | 
|  | { | 
|  | // cpp out is constructed mem, uno out is not! | 
|  | uno_constructData( | 
|  | *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ), | 
|  | pParamTypeDescr ); | 
|  | pTempIndizes[nTempIndizes] = nPos; // default constructed for cpp call | 
|  | // will be released at reconversion | 
|  | ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; | 
|  | } | 
|  | // is in/inout | 
|  | else if (cppu_relatesToInterface( pParamTypeDescr )) | 
|  | { | 
|  | uno_copyAndConvertData( | 
|  | *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ), | 
|  | pUnoArgs[nPos], pParamTypeDescr, &pThis->pBridge->aUno2Cpp ); | 
|  |  | 
|  | pTempIndizes[nTempIndizes] = nPos; // has to be reconverted | 
|  | // will be released at reconversion | 
|  | ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; | 
|  | } | 
|  | else // direct way | 
|  | { | 
|  | *(void **)pCppStack = pCppArgs[nPos] = pUnoArgs[nPos]; | 
|  | // no longer needed | 
|  | TYPELIB_DANGER_RELEASE( pParamTypeDescr ); | 
|  | } | 
|  | } | 
|  | pCppStack += sizeof(sal_Int32); // standard parameter length | 
|  | } | 
|  |  | 
|  | try | 
|  | { | 
|  | OSL_ENSURE( !( (pCppStack - pCppStackStart ) & 3), "UNALIGNED STACK !!! (Please DO panic)" ); | 
|  | callVirtualMethod( | 
|  | pThis->pCppI, nVtableCall, | 
|  | pCppReturn, pReturnTypeDescr->eTypeClass, | 
|  | (sal_Int32 *)pCppStackStart, (pCppStack - pCppStackStart) / sizeof(sal_Int32) ); | 
|  | // NO exception occured... | 
|  | *ppUnoExc = 0; | 
|  |  | 
|  | // reconvert temporary params | 
|  | for ( ; nTempIndizes--; ) | 
|  | { | 
|  | sal_Int32 nIndex = pTempIndizes[nTempIndizes]; | 
|  | typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes]; | 
|  |  | 
|  | if (pParams[nIndex].bIn) | 
|  | { | 
|  | if (pParams[nIndex].bOut) // inout | 
|  | { | 
|  | uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value | 
|  | uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, | 
|  | &pThis->pBridge->aCpp2Uno ); | 
|  | } | 
|  | } | 
|  | else // pure out | 
|  | { | 
|  | uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, | 
|  | &pThis->pBridge->aCpp2Uno ); | 
|  | } | 
|  | // destroy temp cpp param => cpp: every param was constructed | 
|  | uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); | 
|  |  | 
|  | TYPELIB_DANGER_RELEASE( pParamTypeDescr ); | 
|  | } | 
|  | // return value | 
|  | if (pCppReturn && pUnoReturn != pCppReturn) | 
|  | { | 
|  | uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr, | 
|  | &pThis->pBridge->aCpp2Uno ); | 
|  | uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release ); | 
|  | } | 
|  | } | 
|  | catch (...) | 
|  | { | 
|  | // fill uno exception | 
|  | fillUnoException( __cxa_get_globals()->caughtExceptions, *ppUnoExc, &pThis->pBridge->aCpp2Uno ); | 
|  |  | 
|  | // temporary params | 
|  | for ( ; nTempIndizes--; ) | 
|  | { | 
|  | sal_Int32 nIndex = pTempIndizes[nTempIndizes]; | 
|  | // destroy temp cpp param => cpp: every param was constructed | 
|  | uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], cpp_release ); | 
|  | TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] ); | 
|  | } | 
|  | // return type | 
|  | if (pReturnTypeDescr) | 
|  | TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); | 
|  | } | 
|  | } | 
|  |  | 
|  |  | 
|  | //================================================================================================== | 
|  | void SAL_CALL cppu_unoInterfaceProxy_dispatch( | 
|  | uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr, | 
|  | void * pReturn, void * pArgs[], uno_Any ** ppException ) throw () | 
|  | { | 
|  | // is my surrogate | 
|  | cppu_unoInterfaceProxy * pThis = (cppu_unoInterfaceProxy *)pUnoI; | 
|  | typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr; | 
|  |  | 
|  | switch (pMemberDescr->eTypeClass) | 
|  | { | 
|  | case typelib_TypeClass_INTERFACE_ATTRIBUTE: | 
|  | { | 
|  | // determine vtable call index | 
|  | sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition; | 
|  | OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" ); | 
|  |  | 
|  | sal_Int32 nVtableCall = pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos]; | 
|  | OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" ); | 
|  |  | 
|  | if (pReturn) | 
|  | { | 
|  | // dependent dispatch | 
|  | cpp_call( | 
|  | pThis, nVtableCall, | 
|  | ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef, | 
|  | 0, 0, // no params | 
|  | pReturn, pArgs, ppException ); | 
|  | } | 
|  | else | 
|  | { | 
|  | // is SET | 
|  | typelib_MethodParameter aParam; | 
|  | aParam.pTypeRef = | 
|  | ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef; | 
|  | aParam.bIn		= sal_True; | 
|  | aParam.bOut		= sal_False; | 
|  |  | 
|  | typelib_TypeDescriptionReference * pReturnTypeRef = 0; | 
|  | OUString aVoidName( RTL_CONSTASCII_USTRINGPARAM("void") ); | 
|  | typelib_typedescriptionreference_new( | 
|  | &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData ); | 
|  |  | 
|  | // dependent dispatch | 
|  | cpp_call( | 
|  | pThis, nVtableCall +1, // get, then set method | 
|  | pReturnTypeRef, | 
|  | 1, &aParam, | 
|  | pReturn, pArgs, ppException ); | 
|  |  | 
|  | typelib_typedescriptionreference_release( pReturnTypeRef ); | 
|  | } | 
|  |  | 
|  | break; | 
|  | } | 
|  | case typelib_TypeClass_INTERFACE_METHOD: | 
|  | { | 
|  | // determine vtable call index | 
|  | sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition; | 
|  | OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" ); | 
|  |  | 
|  | sal_Int32 nVtableCall = pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos]; | 
|  | OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" ); | 
|  |  | 
|  | switch (nVtableCall) | 
|  | { | 
|  | // standard calls | 
|  | case 1: // acquire uno interface | 
|  | (*pUnoI->acquire)( pUnoI ); | 
|  | *ppException = 0; | 
|  | break; | 
|  | case 2: // release uno interface | 
|  | (*pUnoI->release)( pUnoI ); | 
|  | *ppException = 0; | 
|  | break; | 
|  | case 0: // queryInterface() opt | 
|  | { | 
|  | typelib_TypeDescription * pTD = 0; | 
|  | TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() ); | 
|  | if (pTD) | 
|  | { | 
|  | uno_Interface * pInterface = 0; | 
|  | (*pThis->pBridge->pUnoEnv->getRegisteredInterface)( | 
|  | pThis->pBridge->pUnoEnv, | 
|  | (void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD ); | 
|  |  | 
|  | if (pInterface) | 
|  | { | 
|  | ::uno_any_construct( | 
|  | reinterpret_cast< uno_Any * >( pReturn ), | 
|  | &pInterface, pTD, 0 ); | 
|  | (*pInterface->release)( pInterface ); | 
|  | TYPELIB_DANGER_RELEASE( pTD ); | 
|  | *ppException = 0; | 
|  | break; | 
|  | } | 
|  | TYPELIB_DANGER_RELEASE( pTD ); | 
|  | } | 
|  | } // else perform queryInterface() | 
|  | default: | 
|  | // dependent dispatch | 
|  | cpp_call( | 
|  | pThis, nVtableCall, | 
|  | ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef, | 
|  | ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams, | 
|  | ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams, | 
|  | pReturn, pArgs, ppException ); | 
|  | } | 
|  | break; | 
|  | } | 
|  | default: | 
|  | { | 
|  | ::com::sun::star::uno::RuntimeException aExc( | 
|  | OUString( RTL_CONSTASCII_USTRINGPARAM("illegal member type description!") ), | 
|  | ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() ); | 
|  |  | 
|  | Type const & rExcType = ::getCppuType( &aExc ); | 
|  | // binary identical null reference | 
|  | ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 ); | 
|  | } | 
|  | } | 
|  | } | 
|  |  | 
|  | } | 
|  |  |