| /************************************************************** |
| * |
| * 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 occurred... |
| *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 ); |
| } |
| } |
| } |
| |
| } |
| |