xref: /aoo41x/main/bridges/source/cpp_uno/gcc3_linux_powerpc64/cpp2uno.cxx (revision 61dff127)

/**************************************************************
 *
 * 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 <com/sun/star/uno/genfunc.hxx>
#include <uno/data.h>
#include <typelib/typedescription.hxx>

#include "bridges/cpp_uno/shared/bridge.hxx"
#include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
#include "bridges/cpp_uno/shared/types.hxx"
#include "bridges/cpp_uno/shared/vtablefactory.hxx"

#include "share.hxx"
#include <stdio.h>
#include <string.h>


using namespace ::com::sun::star::uno;

namespace
{

//==================================================================================================
static typelib_TypeClass cpp2uno_call(
	bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
	const typelib_TypeDescription * pMemberTypeDescr,
	typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
	sal_Int32 nParams, typelib_MethodParameter * pParams,
        void ** gpreg, void ** fpreg, void ** ovrflw,
	sal_Int64 * pRegisterReturn /* space for register return */ )
{
#ifdef CMC_DEBUG
    fprintf(stderr, "as far as cpp2uno_call\n");
#endif

    int ng = 0; //number of gpr registers used
    int nf = 0; //number of fpr regsiters used

    // gpreg:  [ret *], this, [gpr params]
    // fpreg:  [fpr params]
    // ovrflw: [gpr or fpr params (properly aligned)]

	// 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 (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
		{
			pUnoReturn = pRegisterReturn; // direct way for simple types
		}
		else // complex return via ptr (pCppReturn)
		{
			pCppReturn = *(void **)gpreg;
            gpreg++;
            ng++;

			pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
						  ? alloca( pReturnTypeDescr->nSize )
						  : pCppReturn); // direct way
		}
	}
	// pop this
    gpreg++;
    ng++;

	// stack space
	OSL_ENSURE( sizeof(void *) == sizeof(sal_Int64), "### 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;
	bool bOverFlowUsed = false;
	for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
	{
		const typelib_MethodParameter & rParam = pParams[nPos];
		typelib_TypeDescription * pParamTypeDescr = 0;
		TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );

#ifdef CMC_DEBUG
		fprintf(stderr, "arg %d of %d\n", nPos, nParams);
#endif

		if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
		{
#ifdef CMC_DEBUG
			fprintf(stderr, "simple\n");
#endif

			switch (pParamTypeDescr->eTypeClass)
			{
				case typelib_TypeClass_FLOAT:
				case typelib_TypeClass_DOUBLE:
					if (nf < ppc64::MAX_SSE_REGS)
					{
						if (pParamTypeDescr->eTypeClass == typelib_TypeClass_FLOAT)
						{
                        	float tmp = (float) (*((double *)fpreg));
                        	(*((float *) fpreg)) = tmp;
						}
						pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++;
						nf++;
					}
					else
                    {
						pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
					break;
                case typelib_TypeClass_BYTE:
                case typelib_TypeClass_BOOLEAN:
                    if (ng < ppc64::MAX_GPR_REGS)
					{
                        pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)gpreg) + (sizeof(void*)-1));
                        ng++;
                        gpreg++;
                    }
                    else
					{
                        pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + (sizeof(void*)-1));
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
                    break;
                case typelib_TypeClass_CHAR:
                case typelib_TypeClass_SHORT:
                case typelib_TypeClass_UNSIGNED_SHORT:
                    if (ng < ppc64::MAX_GPR_REGS)
					{
                        pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)gpreg) + (sizeof(void*)-2));
                        ng++;
                        gpreg++;
                    }
                    else
					{
                        pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + (sizeof(void*)-2));
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
                    break;
		case typelib_TypeClass_ENUM:
                case typelib_TypeClass_LONG:
                case typelib_TypeClass_UNSIGNED_LONG:
                    if (ng < ppc64::MAX_GPR_REGS)
					{
                        pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)gpreg) + (sizeof(void*)-4));
                        ng++;
                        gpreg++;
                    }
                    else
					{
                        pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + (sizeof(void*)-4));
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
                    break;
				default:
					if (ng < ppc64::MAX_GPR_REGS)
					{
						pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++;
						ng++;
					}
					else
                    {
						pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
                        bOverFlowUsed = true;
                    }
                    if (bOverFlowUsed) ovrflw++;
					break;
		        }

		        // no longer needed
				TYPELIB_DANGER_RELEASE( pParamTypeDescr );
		}
		else // ptr to complex value | ref
		{
#ifdef CMC_DEBUG
			fprintf(stderr, "complex, ng is %d\n", ng);
#endif
            void *pCppStack; //temporary stack pointer

			if (ng < ppc64::MAX_GPR_REGS)
			{
		        pCppArgs[nPos] = pCppStack = *gpreg++;
			    ng++;
			}
			else
            {
			    pCppArgs[nPos] = pCppStack = *ovrflw;
                bOverFlowUsed = true;
            }
            if (bOverFlowUsed) ovrflw++;

			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 (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
			{
				uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
										pCppStack, pParamTypeDescr,
										pThis->getBridge()->getCpp2Uno() );
				pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
				// will be released at reconversion
				ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
			}
			else // direct way
			{
				pUnoArgs[nPos] = pCppStack;
				// no longer needed
				TYPELIB_DANGER_RELEASE( pParamTypeDescr );
			}
		}
	}

#ifdef CMC_DEBUG
	fprintf(stderr, "end of params\n");
#endif

	// ExceptionHolder
	uno_Any aUnoExc; // Any will be constructed by callee
	uno_Any * pUnoExc = &aUnoExc;

	// invoke uno dispatch call
	(*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), 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 );

		CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() );
                // 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->getBridge()->getUno2Cpp() );
			}
			// 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->getBridge()->getUno2Cpp() );
				// destroy temp uno return
				uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
			}
			// complex return ptr is set to return reg
			*(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_uInt64 nOffsetAndIndex,
        void ** gpreg, void ** fpreg, long sp,
	sal_Int64 * pRegisterReturn /* space for register return */ )
{
    OSL_ENSURE( sizeof(sal_Int64)==sizeof(void *), "### unexpected!" );

    sal_Int32 nVtableOffset = (nOffsetAndIndex >> 32);
    sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFFFFFF);

    long sf = *(long*)sp;
    void ** ovrflw = (void**)(sf + 112);

    // gpreg:  [ret *], this, [other gpr params]
    // fpreg:  [fpr params]
    // ovrflw: [gpr or fpr params (properly aligned)]

    void * pThis;
    if (nFunctionIndex & 0x80000000 )
    {
	nFunctionIndex &= 0x7fffffff;
	pThis = gpreg[1];
#ifdef CMC_DEBUG
	fprintf(stderr, "pThis is gpreg[1]\n");
#endif
    }
    else
    {
	pThis = gpreg[0];
#ifdef CMC_DEBUG
	fprintf(stderr, "pThis is gpreg[0]\n");
#endif
    }

#ifdef CMC_DEBUG
    fprintf(stderr, "pThis is %lx\n", pThis);
#endif

    pThis = static_cast< char * >(pThis) - nVtableOffset;

#ifdef CMC_DEBUG
    fprintf(stderr, "pThis is now %lx\n", pThis);
#endif

    bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
	    = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
			pThis);

    typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();

#ifdef CMC_DEBUG
    fprintf(stderr, "indexes are %d %d\n", nFunctionIndex, pTypeDescr->nMapFunctionIndexToMemberIndex);
#endif

	OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
	if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
	{
		throw RuntimeException(
            rtl::OUString::createFromAscii("illegal vtable index!"),
            (XInterface *)pThis );
	}

	// determine called method
	sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
	OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );

#ifdef CMC_DEBUG
	fprintf(stderr, "members are %d %d\n", nMemberPos, pTypeDescr->nAllMembers);
#endif

	TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );

	typelib_TypeClass eRet;
	switch (aMemberDescr.get()->eTypeClass)
	{
	case typelib_TypeClass_INTERFACE_ATTRIBUTE:
	{
		if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
		{
			// is GET method
			eRet = cpp2uno_call(
				pCppI, aMemberDescr.get(),
				((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
				0, 0, // no params
				gpreg, fpreg, ovrflw, 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,
				gpreg, fpreg, ovrflw, pRegisterReturn );
		}
		break;
	}
	case typelib_TypeClass_INTERFACE_METHOD:
	{
		// is METHOD
		switch (nFunctionIndex)
		{
		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 * >( gpreg[2] )->getTypeLibType() );
			if (pTD)
			{
                XInterface * pInterface = 0;
                (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
                    pCppI->getBridge()->getCppEnv(),
                    (void **)&pInterface, pCppI->getOid().pData,
                    (typelib_InterfaceTypeDescription *)pTD );

                if (pInterface)
                {
                    ::uno_any_construct(
                        reinterpret_cast< uno_Any * >( gpreg[0] ),
                        &pInterface, pTD, cpp_acquire );
                    pInterface->release();
                    TYPELIB_DANGER_RELEASE( pTD );
                    *(void **)pRegisterReturn = gpreg[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,
				gpreg, fpreg, ovrflw, pRegisterReturn );
		}
		break;
	}
	default:
	{
#ifdef CMC_DEBUG
	    fprintf(stderr, "screwed\n");
#endif

		throw RuntimeException(
            rtl::OUString::createFromAscii("no member description found!"),
            (XInterface *)pThis );
		// is here for dummy
		eRet = typelib_TypeClass_VOID;
	}
	}

#ifdef CMC_DEBUG
        fprintf(stderr, "end of cpp_mediate\n");
#endif
	return eRet;
}

extern "C" void privateSnippetExecutor( ... )
{
    volatile long nOffsetAndIndex;

    //mr %r3, %r11            # move into arg1 the 64bit value passed from OOo
    __asm__ __volatile__ (
                "mr     %0,    11\n\t"
                : "=r" (nOffsetAndIndex) : );

    sal_uInt64 gpreg[ppc64::MAX_GPR_REGS];
    double fpreg[ppc64::MAX_SSE_REGS];

    __asm__ __volatile__ (
        "std 3,   0(%0)\t\n"
        "std 4,   8(%0)\t\n"
        "std 5,  16(%0)\t\n"
        "std 6,  24(%0)\t\n"
        "std 7,  32(%0)\t\n"
        "std 8,  40(%0)\t\n"
        "std 9,  48(%0)\t\n"
        "std 10, 56(%0)\t\n"
        "stfd 1,   0(%1)\t\n"
        "stfd 2,   8(%1)\t\n"
        "stfd 3,  16(%1)\t\n"
        "stfd 4,  24(%1)\t\n"
        "stfd 5,  32(%1)\t\n"
        "stfd 6,  40(%1)\t\n"
        "stfd 7,  48(%1)\t\n"
        "stfd 8,  56(%1)\t\n"
        "stfd 9,  64(%1)\t\n"
        "stfd 10, 72(%1)\t\n"
        "stfd 11, 80(%1)\t\n"
        "stfd 12, 88(%1)\t\n"
        "stfd 13, 96(%1)\t\n"
	: : "r" (gpreg), "r" (fpreg)
        : "r0", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10",
          "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7", "fr8", "fr9",
          "fr10", "fr11", "fr12", "fr13"
    );

    volatile long sp;

    //stack pointer
    __asm__ __volatile__ (
                "mr     %0,    1\n\t"
                : "=r" (sp) : );

    volatile long nRegReturn[1];

    typelib_TypeClass aType =
        cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, sp, (sal_Int64*)nRegReturn);

    switch( aType )
    {
        case typelib_TypeClass_VOID:
	    break;
        case typelib_TypeClass_BOOLEAN:
        case typelib_TypeClass_BYTE:
            __asm__( "lbz 3,%0\n\t"
                : : "m" (nRegReturn[0]) );
            break;
        case typelib_TypeClass_CHAR:
        case typelib_TypeClass_UNSIGNED_SHORT:
            __asm__( "lhz 3,%0\n\t"
                : : "m" (nRegReturn[0]) );
            break;
        case typelib_TypeClass_SHORT:
            __asm__( "lha 3,%0\n\t"
                : : "m" (nRegReturn[0]) );
            break;
        case typelib_TypeClass_ENUM:
        case typelib_TypeClass_UNSIGNED_LONG:
            __asm__( "lwz 3,%0\n\t"
                : : "m"(nRegReturn[0]) );
            break;
        case typelib_TypeClass_LONG:
            __asm__( "lwa 3,%0\n\t"
                : : "m"(nRegReturn[0]) );
            break;
        case typelib_TypeClass_FLOAT:
            __asm__( "lfs 1,%0\n\t"
                : : "m" (*((float*)nRegReturn)) );
            break;
        case typelib_TypeClass_DOUBLE:
            __asm__( "lfd 1,%0\n\t"
                : : "m" (*((double*)nRegReturn)) );
            break;
        default:
            __asm__( "ld 3,%0\n\t"
                : : "m" (nRegReturn[0]) );
            break;
    }
}

const int codeSnippetSize = 24;

unsigned char *  codeSnippet( unsigned char * code, sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset,
                              bool simpleRetType)
{
#ifdef CMC_DEBUG
    fprintf(stderr,"in codeSnippet functionIndex is %x\n", nFunctionIndex);
    fprintf(stderr,"in codeSnippet vtableOffset is %x\n", nVtableOffset);
#endif

    sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex );

    if ( !simpleRetType )
        nOffsetAndIndex |= 0x80000000;

    void ** raw = (void **)&code[0];
    memcpy(raw, (char*) privateSnippetExecutor, 16);
    raw[2] = (void*) nOffsetAndIndex;
#ifdef CMC_DEBUG
    fprintf(stderr, "in: offset/index is %x %x %d, %lx\n",
	nFunctionIndex, nVtableOffset, !simpleRetType, raw[2]);
#endif
    return (code + codeSnippetSize);
}

}

void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const * bptr, unsigned char const * eptr)
{
    int const lineSize = 32;
    for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) {
        __asm__ volatile ("dcbst 0, %0" : : "r"(p) : "memory");
    }
    __asm__ volatile ("sync" : : : "memory");
    for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) {
        __asm__ volatile ("icbi 0, %0" : : "r"(p) : "memory");
    }
    __asm__ volatile ("isync" : : : "memory");
}

struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };

bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
{
    return static_cast< Slot * >(block) + 2;
}

sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
    sal_Int32 slotCount)
{
    return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
}

bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::initializeBlock(
    void * block, sal_Int32 slotCount)
{
    Slot * slots = mapBlockToVtable(block);
    slots[-2].fn = 0;
    slots[-1].fn = 0;
    return slots + slotCount;
}

unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
    Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
    typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
    sal_Int32 functionCount, sal_Int32 vtableOffset)
{
     (*slots) -= functionCount;
     Slot * s = *slots;
#ifdef CMC_DEBUG
    fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
    fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
#endif

    for (sal_Int32 i = 0; i < type->nMembers; ++i) {
        typelib_TypeDescription * member = 0;
        TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
        OSL_ASSERT(member != 0);
        switch (member->eTypeClass) {
        case typelib_TypeClass_INTERFACE_ATTRIBUTE:
            // Getter:
            (s++)->fn = code + writetoexecdiff;
            code = codeSnippet(
                code, functionOffset++, vtableOffset,
                bridges::cpp_uno::shared::isSimpleType(
                    reinterpret_cast<
                    typelib_InterfaceAttributeTypeDescription * >(
                        member)->pAttributeTypeRef));

            // Setter:
            if (!reinterpret_cast<
                typelib_InterfaceAttributeTypeDescription * >(
                    member)->bReadOnly)
            {
                (s++)->fn = code + writetoexecdiff;
                code = codeSnippet(code, functionOffset++, vtableOffset, true);
            }
            break;

        case typelib_TypeClass_INTERFACE_METHOD:
            (s++)->fn = code + writetoexecdiff;
            code = codeSnippet(
                code, functionOffset++, vtableOffset,
                bridges::cpp_uno::shared::isSimpleType(
                    reinterpret_cast<
                    typelib_InterfaceMethodTypeDescription * >(
                        member)->pReturnTypeRef));
            break;

        default:
            OSL_ASSERT(false);
            break;
        }
        TYPELIB_DANGER_RELEASE(member);
    }
    return code;
}

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