543 lines
20 KiB
C++
543 lines
20 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: cpp2uno.cxx,v $
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*
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* $Revision: 1.6 $
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*
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* last change: $Author: obo $ $Date: 2006-09-16 15:50:25 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_bridges.hxx"
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#include <stdio.h>
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#include <stdlib.h>
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#include <hash_map>
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#include <rtl/alloc.h>
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#include <osl/mutex.hxx>
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#include <com/sun/star/uno/genfunc.hxx>
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#include "com/sun/star/uno/RuntimeException.hpp"
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#include <uno/data.h>
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#include <typelib/typedescription.hxx>
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#include "bridges/cpp_uno/shared/bridge.hxx"
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#include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
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#include "bridges/cpp_uno/shared/types.hxx"
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#include "bridges/cpp_uno/shared/vtablefactory.hxx"
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#include "abi.hxx"
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#include "share.hxx"
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using namespace ::osl;
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using namespace ::rtl;
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using namespace ::com::sun::star::uno;
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//==================================================================================================
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// Perform the UNO call
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//
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// We must convert the paramaters stored in gpreg, fpreg and ovrflw to UNO
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// arguments and call pThis->getUnoI()->pDispatcher.
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//
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// gpreg: [ret *], this, [gpr params]
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// fpreg: [fpr params]
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// ovrflw: [gpr or fpr params (properly aligned)]
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//
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// [ret *] is present when we are returning a structure bigger than 16 bytes
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// Simple types are returned in rax, rdx (int), or xmm0, xmm1 (fp).
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// Similarly structures <= 16 bytes are in rax, rdx, xmm0, xmm1 as necessary.
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static typelib_TypeClass cpp2uno_call(
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bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
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const typelib_TypeDescription * pMemberTypeDescr,
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typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
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sal_Int32 nParams, typelib_MethodParameter * pParams,
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void ** gpreg, void ** fpreg, void ** ovrflw,
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sal_uInt64 * pRegisterReturn /* space for register return */ )
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{
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int nr_gpr = 0; //number of gpr registers used
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int nr_fpr = 0; //number of fpr regsiters used
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// return
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typelib_TypeDescription * pReturnTypeDescr = 0;
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if (pReturnTypeRef)
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TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
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void * pUnoReturn = 0;
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void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
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if ( pReturnTypeDescr )
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{
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if ( x86_64::return_in_hidden_param( pReturnTypeRef ) )
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{
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pCppReturn = *gpreg++;
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nr_gpr++;
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pUnoReturn = ( bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
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? alloca( pReturnTypeDescr->nSize )
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: pCppReturn ); // direct way
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}
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else
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pUnoReturn = pRegisterReturn; // direct way for simple types
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}
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// pop this
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gpreg++;
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nr_gpr++;
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// stack space
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// parameters
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void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
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void ** pCppArgs = pUnoArgs + nParams;
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// indizes of values this have to be converted (interface conversion cpp<=>uno)
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sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
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// type descriptions for reconversions
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typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
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sal_Int32 nTempIndizes = 0;
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for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
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{
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const typelib_MethodParameter & rParam = pParams[nPos];
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typelib_TypeDescription * pParamTypeDescr = 0;
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TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
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int nUsedGPR = 0;
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int nUsedSSE = 0;
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bool bFitsRegisters = x86_64::examine_argument( rParam.pTypeRef, false, nUsedGPR, nUsedSSE );
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if ( !rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ) ) // value
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{
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// Simple types must fit exactly one register on x86_64
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OSL_ASSERT( bFitsRegisters && ( ( nUsedSSE == 1 && nUsedGPR == 0 ) || ( nUsedSSE == 0 && nUsedGPR == 1 ) ) );
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if ( nUsedSSE == 1 )
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{
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if ( nr_fpr < x86_64::MAX_SSE_REGS )
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{
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pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++;
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nr_fpr++;
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}
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else
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pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++;
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}
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else if ( nUsedGPR == 1 )
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{
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if ( nr_gpr < x86_64::MAX_GPR_REGS )
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{
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pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++;
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nr_gpr++;
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}
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else
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pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++;
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}
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// no longer needed
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TYPELIB_DANGER_RELEASE( pParamTypeDescr );
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}
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else // struct <= 16 bytes || ptr to complex value || ref
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{
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void *pCppStack;
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char pTmpStruct[16];
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if ( bFitsRegisters && !rParam.bOut &&
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( pParamTypeDescr->eTypeClass == typelib_TypeClass_STRUCT ||
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pParamTypeDescr->eTypeClass == typelib_TypeClass_EXCEPTION ) )
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{
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if ( ( nr_gpr + nUsedGPR <= x86_64::MAX_GPR_REGS ) && ( nr_fpr + nUsedSSE <= x86_64::MAX_SSE_REGS ) )
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{
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x86_64::fill_struct( rParam.pTypeRef, gpreg, fpreg, pTmpStruct );
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#if OSL_DEBUG_LEVEL > 1
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fprintf( stderr, "nUsedGPR == %d, nUsedSSE == %d, pTmpStruct[0] == 0x%x, pTmpStruct[1] == 0x%x, **gpreg == 0x%lx\n",
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nUsedGPR, nUsedSSE, pTmpStruct[0], pTmpStruct[1], *(sal_uInt64*)*gpreg );
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#endif
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pCppArgs[nPos] = pCppStack = reinterpret_cast<void *>( pTmpStruct );
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gpreg += nUsedGPR;
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fpreg += nUsedSSE;
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}
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else
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pCppArgs[nPos] = pCppStack = *ovrflw++;
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}
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else if ( nr_gpr < x86_64::MAX_GPR_REGS )
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{
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pCppArgs[nPos] = pCppStack = *gpreg++;
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nr_gpr++;
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}
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else
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pCppArgs[nPos] = pCppStack = *ovrflw++;
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if (! rParam.bIn) // is pure out
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{
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// uno out is unconstructed mem!
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pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
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pTempIndizes[nTempIndizes] = nPos;
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// will be released at reconversion
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ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
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}
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else if ( bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ) ) // is in/inout
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{
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uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
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pCppStack, pParamTypeDescr,
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pThis->getBridge()->getCpp2Uno() );
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pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
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// will be released at reconversion
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ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
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}
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else // direct way
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{
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pUnoArgs[nPos] = pCppStack;
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// no longer needed
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TYPELIB_DANGER_RELEASE( pParamTypeDescr );
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}
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}
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}
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// ExceptionHolder
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uno_Any aUnoExc; // Any will be constructed by callee
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uno_Any * pUnoExc = &aUnoExc;
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// invoke uno dispatch call
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(*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
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// in case an exception occured...
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if ( pUnoExc )
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{
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// destruct temporary in/inout params
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for ( ; nTempIndizes--; )
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{
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sal_Int32 nIndex = pTempIndizes[nTempIndizes];
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if (pParams[nIndex].bIn) // is in/inout => was constructed
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uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
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TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
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}
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if (pReturnTypeDescr)
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TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
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CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() ); // has to destruct the any
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// is here for dummy
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return typelib_TypeClass_VOID;
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}
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else // else no exception occured...
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{
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// temporary params
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for ( ; nTempIndizes--; )
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{
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sal_Int32 nIndex = pTempIndizes[nTempIndizes];
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typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
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if ( pParams[nIndex].bOut ) // inout/out
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{
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// convert and assign
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uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
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uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
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pThis->getBridge()->getUno2Cpp() );
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}
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// destroy temp uno param
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uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
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TYPELIB_DANGER_RELEASE( pParamTypeDescr );
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}
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// return
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if ( pCppReturn ) // has complex return
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{
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if ( pUnoReturn != pCppReturn ) // needs reconversion
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{
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uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
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pThis->getBridge()->getUno2Cpp() );
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// destroy temp uno return
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uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
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}
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// complex return ptr is set to return reg
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*(void **)pRegisterReturn = pCppReturn;
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}
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if ( pReturnTypeDescr )
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{
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typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
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TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
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return eRet;
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}
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else
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return typelib_TypeClass_VOID;
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}
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}
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//==================================================================================================
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extern "C" typelib_TypeClass cpp_vtable_call(
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sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset,
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void ** gpreg, void ** fpreg, void ** ovrflw,
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sal_uInt64 * pRegisterReturn /* space for register return */ )
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{
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// gpreg: [ret *], this, [other gpr params]
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// fpreg: [fpr params]
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// ovrflw: [gpr or fpr params (properly aligned)]
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void * pThis;
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if ( nFunctionIndex & 0x80000000 )
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{
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nFunctionIndex &= 0x7fffffff;
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pThis = gpreg[1];
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}
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else
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{
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pThis = gpreg[0];
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}
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pThis = static_cast<char *>( pThis ) - nVtableOffset;
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bridges::cpp_uno::shared::CppInterfaceProxy * pCppI =
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bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy( pThis );
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typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
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OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!\n" );
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if ( nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex )
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{
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throw RuntimeException( OUString::createFromAscii("illegal vtable index!"),
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reinterpret_cast<XInterface *>( pCppI ) );
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}
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// determine called method
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sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
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OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!\n" );
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TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
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typelib_TypeClass eRet;
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switch ( aMemberDescr.get()->eTypeClass )
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{
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case typelib_TypeClass_INTERFACE_ATTRIBUTE:
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{
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typelib_TypeDescriptionReference *pAttrTypeRef =
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reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( aMemberDescr.get() )->pAttributeTypeRef;
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if ( pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex )
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{
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// is GET method
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eRet = cpp2uno_call( pCppI, aMemberDescr.get(), pAttrTypeRef,
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0, 0, // no params
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gpreg, fpreg, ovrflw, pRegisterReturn );
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}
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else
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{
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// is SET method
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typelib_MethodParameter aParam;
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aParam.pTypeRef = pAttrTypeRef;
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aParam.bIn = sal_True;
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aParam.bOut = sal_False;
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eRet = cpp2uno_call( pCppI, aMemberDescr.get(),
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0, // indicates void return
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1, &aParam,
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gpreg, fpreg, ovrflw, pRegisterReturn );
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}
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break;
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}
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case typelib_TypeClass_INTERFACE_METHOD:
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{
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// is METHOD
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switch ( nFunctionIndex )
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{
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case 1: // acquire()
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pCppI->acquireProxy(); // non virtual call!
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eRet = typelib_TypeClass_VOID;
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break;
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case 2: // release()
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pCppI->releaseProxy(); // non virtual call!
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eRet = typelib_TypeClass_VOID;
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break;
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case 0: // queryInterface() opt
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{
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typelib_TypeDescription * pTD = 0;
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TYPELIB_DANGER_GET( &pTD, reinterpret_cast<Type *>( gpreg[2] )->getTypeLibType() );
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if ( pTD )
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{
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XInterface * pInterface = 0;
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(*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)
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( pCppI->getBridge()->getCppEnv(),
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(void **)&pInterface,
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pCppI->getOid().pData,
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reinterpret_cast<typelib_InterfaceTypeDescription *>( pTD ) );
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if ( pInterface )
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{
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::uno_any_construct( reinterpret_cast<uno_Any *>( gpreg[0] ),
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&pInterface, pTD, cpp_acquire );
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pInterface->release();
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TYPELIB_DANGER_RELEASE( pTD );
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reinterpret_cast<void **>( pRegisterReturn )[0] = gpreg[0];
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eRet = typelib_TypeClass_ANY;
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break;
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}
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TYPELIB_DANGER_RELEASE( pTD );
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}
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} // else perform queryInterface()
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default:
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{
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typelib_InterfaceMethodTypeDescription *pMethodTD =
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reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( aMemberDescr.get() );
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eRet = cpp2uno_call( pCppI, aMemberDescr.get(),
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pMethodTD->pReturnTypeRef,
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pMethodTD->nParams,
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pMethodTD->pParams,
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gpreg, fpreg, ovrflw, pRegisterReturn );
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}
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}
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break;
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}
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default:
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{
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throw RuntimeException( OUString::createFromAscii("no member description found!"),
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reinterpret_cast<XInterface *>( pCppI ) );
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// is here for dummy
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eRet = typelib_TypeClass_VOID;
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}
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}
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return eRet;
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}
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//==================================================================================================
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extern "C" void privateSnippetExecutor( ... );
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const int codeSnippetSize = 24;
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// Generate a trampoline that redirects method calls to
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// privateSnippetExecutor().
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//
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// privateSnippetExecutor() saves all the registers that are used for
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// parameter passing on x86_64, and calls the cpp_vtable_call().
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// When it returns, privateSnippetExecutor() sets the return value.
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//
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// Note: The code snippet we build here must not create a stack frame,
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// otherwise the UNO exceptions stop working thanks to non-existing
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// unwinding info.
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unsigned char * codeSnippet( unsigned char * code,
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sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset,
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bool bHasHiddenParam ) SAL_THROW( () )
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{
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sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex );
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if ( bHasHiddenParam )
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nOffsetAndIndex |= 0x80000000;
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// movq $<nOffsetAndIndex>, %r10
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*reinterpret_cast<sal_uInt16 *>( code ) = 0xba49;
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*reinterpret_cast<sal_uInt64 *>( code + 2 ) = nOffsetAndIndex;
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// movq $<address of the privateSnippetExecutor>, %r11
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*reinterpret_cast<sal_uInt16 *>( code + 10 ) = 0xbb49;
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*reinterpret_cast<sal_uInt64 *>( code + 12 ) = reinterpret_cast<sal_uInt64>( privateSnippetExecutor );
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// jmpq *%r11
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*reinterpret_cast<sal_uInt32 *>( code + 20 ) = 0x00e3ff49;
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return code + codeSnippetSize;
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}
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//==================================================================================================
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void ** bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable( void * block )
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{
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return static_cast<void **>( block ) + 2;
|
|
}
|
|
|
|
//==================================================================================================
|
|
sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
|
|
sal_Int32 slotCount)
|
|
{
|
|
return ( slotCount + 2 ) * sizeof( void * ) + slotCount * codeSnippetSize;
|
|
}
|
|
|
|
//==================================================================================================
|
|
void ** bridges::cpp_uno::shared::VtableFactory::initializeBlock( void * block )
|
|
{
|
|
void ** slots = mapBlockToVtable( block );
|
|
slots[-2] = 0;
|
|
slots[-1] = 0;
|
|
|
|
return slots;
|
|
}
|
|
|
|
//==================================================================================================
|
|
|
|
unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
|
|
void ** slots, unsigned char * code,
|
|
typelib_InterfaceTypeDescription const * type, sal_Int32 nFunctionOffset,
|
|
sal_Int32 functionCount, sal_Int32 nVtableOffset )
|
|
{
|
|
for ( sal_Int32 nPos = 0; nPos < type->nMembers; ++nPos )
|
|
{
|
|
typelib_TypeDescription * pTD = 0;
|
|
|
|
TYPELIB_DANGER_GET( &pTD, type->ppMembers[ nPos ] );
|
|
OSL_ASSERT( pTD );
|
|
|
|
if ( typelib_TypeClass_INTERFACE_ATTRIBUTE == pTD->eTypeClass )
|
|
{
|
|
typelib_InterfaceAttributeTypeDescription *pAttrTD =
|
|
reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( pTD );
|
|
|
|
// get method
|
|
*slots++ = code;
|
|
code = codeSnippet( code, nFunctionOffset++, nVtableOffset,
|
|
x86_64::return_in_hidden_param( pAttrTD->pAttributeTypeRef ) );
|
|
|
|
if ( ! pAttrTD->bReadOnly )
|
|
{
|
|
// set method
|
|
*slots++ = code;
|
|
code = codeSnippet( code, nFunctionOffset++, nVtableOffset, false );
|
|
}
|
|
}
|
|
else if ( typelib_TypeClass_INTERFACE_METHOD == pTD->eTypeClass )
|
|
{
|
|
typelib_InterfaceMethodTypeDescription *pMethodTD =
|
|
reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( pTD );
|
|
|
|
*slots++ = code;
|
|
code = codeSnippet( code, nFunctionOffset++, nVtableOffset,
|
|
x86_64::return_in_hidden_param( pMethodTD->pReturnTypeRef ) );
|
|
}
|
|
else
|
|
OSL_ASSERT( false );
|
|
|
|
TYPELIB_DANGER_RELEASE( pTD );
|
|
}
|
|
return code;
|
|
}
|
|
|
|
//==================================================================================================
|
|
void bridges::cpp_uno::shared::VtableFactory::flushCode(
|
|
unsigned char const *, unsigned char const * )
|
|
{
|
|
}
|