/************************************************************************* * * $RCSfile: cpp2uno.cxx,v $ * * $Revision: 1.2 $ * * last change: $Author: hr $ $Date: 2003-03-18 19:06:54 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses * * - GNU Lesser General Public License Version 2.1 * - Sun Industry Standards Source License Version 1.1 * * Sun Microsystems Inc., October, 2000 * * GNU Lesser General Public License Version 2.1 * ============================================= * Copyright 2000 by Sun Microsystems, Inc. * 901 San Antonio Road, Palo Alto, CA 94303, USA * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License version 2.1, as published by the Free Software Foundation. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * * * Sun Industry Standards Source License Version 1.1 * ================================================= * The contents of this file are subject to the Sun Industry Standards * Source License Version 1.1 (the "License"); You may not use this file * except in compliance with the License. You may obtain a copy of the * License at http://www.openoffice.org/license.html. * * Software provided under this License is provided on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. * See the License for the specific provisions governing your rights and * obligations concerning the Software. * * The Initial Developer of the Original Code is: Sun Microsystems, Inc. * * Copyright: 2000 by Sun Microsystems, Inc. * * All Rights Reserved. * * Contributor(s): _______________________________________ * * ************************************************************************/ #include #include #include #include #include #include #include #include #include "share.hxx" using namespace ::osl; using namespace ::rtl; using namespace ::com::sun::star::uno; namespace CPPU_CURRENT_NAMESPACE { //================================================================================================== rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT; //================================================================================================== static typelib_TypeClass cpp2uno_call( cppu_cppInterfaceProxy * pThis, const typelib_TypeDescription * pMemberTypeDescr, typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return sal_Int32 nParams, typelib_MethodParameter * pParams, void ** gpreg, void ** fpreg, void ** ovrflw, sal_Int64 * pRegisterReturn /* space for register return */ ) { int ng = 0; //number of gpr registers used int nf = 0; //number of fpr regsiters used void ** pCppStack; //temporary stack pointer // 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 (cppu_isSimpleType( pReturnTypeDescr )) { pUnoReturn = pRegisterReturn; // direct way for simple types } else // complex return via ptr (pCppReturn) { pCppReturn = *(void **)gpreg; gpreg++; ng++; pUnoReturn = (cppu_relatesToInterface( pReturnTypeDescr ) ? alloca( pReturnTypeDescr->nSize ) : pCppReturn); // direct way } } // pop this gpreg++; ng++; // stack space OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" ); // parameters void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams ); void ** pCppArgs = pUnoArgs + nParams; // indizes of values this have to be converted (interface conversion cpp<=>uno) sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams)); // type descriptions for reconversions typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams)); sal_Int32 nTempIndizes = 0; for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) { const typelib_MethodParameter & rParam = pParams[nPos]; typelib_TypeDescription * pParamTypeDescr = 0; TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); if (!rParam.bOut && cppu_isSimpleType( pParamTypeDescr )) // value { switch (pParamTypeDescr->eTypeClass) { case typelib_TypeClass_DOUBLE: if (nf < 2) { pCppArgs[nPos] = fpreg; pUnoArgs[nPos] = fpreg; nf++; fpreg += 2; } else { pCppArgs[nPos] = ovrflw; pUnoArgs[nPos] = ovrflw; ovrflw += 2; } break; case typelib_TypeClass_FLOAT: // fpreg are all double values so need to // modify fpreg to be a single word float value if (nf < 2) { // float tmp = (float) (*((double *)fpreg)); // (*((float *) fpreg)) = tmp; pCppArgs[nPos] = fpreg; pUnoArgs[nPos] = fpreg; nf++; fpreg += 2; } else { pCppArgs[nPos] = ovrflw; pUnoArgs[nPos] = ovrflw; ovrflw += 1; } break; case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: if (ng < 4) { pCppArgs[nPos] = gpreg; pUnoArgs[nPos] = gpreg; ng += 2; gpreg += 2; } else { pCppArgs[nPos] = ovrflw; pUnoArgs[nPos] = ovrflw; ovrflw += 2; } break; case typelib_TypeClass_BYTE: case typelib_TypeClass_BOOLEAN: if (ng < 5) { pCppArgs[nPos] = (((char *)gpreg) + 3); pUnoArgs[nPos] = (((char *)gpreg) + 3); ng++; gpreg++; } else { pCppArgs[nPos] = (((char *)ovrflw) + 3); pUnoArgs[nPos] = (((char *)ovrflw) + 3); ovrflw++; } break; case typelib_TypeClass_CHAR: case typelib_TypeClass_SHORT: case typelib_TypeClass_UNSIGNED_SHORT: if (ng < 5) { pCppArgs[nPos] = (((char *)gpreg)+ 2); pUnoArgs[nPos] = (((char *)gpreg)+ 2); ng++; gpreg++; } else { pCppArgs[nPos] = (((char *)ovrflw) + 2); pUnoArgs[nPos] = (((char *)ovrflw) + 2); ovrflw++; } break; default: if (ng < 5) { pCppArgs[nPos] = gpreg; pUnoArgs[nPos] = gpreg; ng++; gpreg++; } else { pCppArgs[nPos] = ovrflw; pUnoArgs[nPos] = ovrflw; ovrflw++; } break; } // no longer needed TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } else // ptr to complex value | ref { if (ng < 5) { pCppArgs[nPos] = *(void **)gpreg; pCppStack = gpreg; ng++; gpreg++; } else { pCppArgs[nPos] = *(void **)ovrflw; pCppStack = ovrflw; 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 (cppu_relatesToInterface( pParamTypeDescr )) { uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ), *(void **)pCppStack, pParamTypeDescr, &pThis->pBridge->aCpp2Uno ); pTempIndizes[nTempIndizes] = nPos; // has to be reconverted // will be released at reconversion ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; } else // direct way { pUnoArgs[nPos] = *(void **)pCppStack; // no longer needed TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } } } // ExceptionHolder uno_Any aUnoExc; // Any will be constructed by callee uno_Any * pUnoExc = &aUnoExc; // invoke uno dispatch call (*pThis->pUnoI->pDispatcher)( pThis->pUnoI, pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc ); // in case an exception occured... if (pUnoExc) { // destruct temporary in/inout params for ( ; nTempIndizes--; ) { sal_Int32 nIndex = pTempIndizes[nTempIndizes]; if (pParams[nIndex].bIn) // is in/inout => was constructed uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 ); TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] ); } if (pReturnTypeDescr) TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); raiseException( &aUnoExc, &pThis->pBridge->aUno2Cpp ); // has to destruct the any // is here for dummy return typelib_TypeClass_VOID; } else // else no exception occured... { // temporary params for ( ; nTempIndizes--; ) { sal_Int32 nIndex = pTempIndizes[nTempIndizes]; typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes]; if (pParams[nIndex].bOut) // inout/out { // convert and assign uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr, &pThis->pBridge->aUno2Cpp ); } // destroy temp uno param uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } // return if (pCppReturn) // has complex return { if (pUnoReturn != pCppReturn) // needs reconversion { uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr, &pThis->pBridge->aUno2Cpp ); // destroy temp uno return uno_destructData( pUnoReturn, pReturnTypeDescr, 0 ); } // complex return ptr is set to 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_Int32 nVtableCall, void ** gpreg, void ** fpreg, void ** ovrflw, sal_Int64 * pRegisterReturn /* space for register return */ ) { OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" ); // gpreg: [ret *], this, [other gpr params] // fpreg: [fpr params] // ovrflw: [gpr or fpr params (properly aligned)] // _this_ ptr is patched cppu_XInterfaceProxy object cppu_cppInterfaceProxy * pCppI = NULL; if( nVtableCall & 0x80000000 ) { nVtableCall &= 0x7fffffff; pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*(gpreg +1); } else { pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*(gpreg); } typelib_InterfaceTypeDescription * pTypeDescr = pCppI->pTypeDescr; OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" ); if (nVtableCall >= pTypeDescr->nMapFunctionIndexToMemberIndex) { throw RuntimeException( OUString::createFromAscii("illegal vtable index!"), (XInterface *)pCppI ); } // determine called method OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" ); sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nVtableCall]; OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" ); TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); typelib_TypeClass eRet; switch (aMemberDescr.get()->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE: { if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nVtableCall) { // is GET method eRet = cpp2uno_call( pCppI, aMemberDescr.get(), ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef, 0, 0, // no params 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 (nVtableCall) { case 1: // acquire() pCppI->acquireProxy(); // non virtual call! eRet = typelib_TypeClass_VOID; break; case 2: // release() pCppI->releaseProxy(); // non virtual call! eRet = typelib_TypeClass_VOID; break; case 0: // queryInterface() opt { typelib_TypeDescription * pTD = 0; TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() ); if (pTD) { XInterface * pInterface = 0; (*pCppI->pBridge->pCppEnv->getRegisteredInterface)( pCppI->pBridge->pCppEnv, (void **)&pInterface, pCppI->oid.pData, (typelib_InterfaceTypeDescription *)pTD ); if (pInterface) { ::uno_any_construct( reinterpret_cast< uno_Any * >( 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: { throw RuntimeException( OUString::createFromAscii("no member description found!"), (XInterface *)pCppI ); // is here for dummy eRet = typelib_TypeClass_VOID; } } return eRet; } //================================================================================================== /** * is called on incoming vtable calls * (called by asm snippets) */ static void cpp_vtable_call( int nTableEntry, void** gpregptr, void** fpregptr, void** ovrflw) { sal_Int32 gpreg[8]; double fpreg[8]; memcpy( gpreg, gpregptr, 32); memcpy( fpreg, fpregptr, 64); volatile long nRegReturn[2]; sal_Bool bComplex = nTableEntry & 0x80000000 ? sal_True : sal_False; typelib_TypeClass aType = cpp_mediate( nTableEntry, (void**)gpreg, (void**)fpreg, ovrflw, (sal_Int64*)nRegReturn ); switch( aType ) { // move return value into register space // (will be loaded by machine code snippet) case typelib_TypeClass_BOOLEAN: { unsigned long tmp = (unsigned long)(*(unsigned char *)nRegReturn); __asm__ volatile ( "l 2,%0\n\t" : : "m"(tmp) : "2" ); break; } case typelib_TypeClass_BYTE: { long tmp = (long)(*(signed char *)nRegReturn); __asm__ volatile ( "l 2,%0\n\t" : : "m"(tmp) : "2" ); break; } case typelib_TypeClass_CHAR: case typelib_TypeClass_UNSIGNED_SHORT: { unsigned long tmp = (unsigned long)(*(unsigned short *)nRegReturn); __asm__ volatile ( "l 2,%0\n\t" : : "m"(tmp) : "2" ); break; } case typelib_TypeClass_SHORT: { long tmp = (long)(*(short *)nRegReturn); __asm__ volatile ( "l 2,%0\n\t" : : "m"(tmp) : "2" ); break; } case typelib_TypeClass_FLOAT: __asm__ volatile ( "le 0,%0\n\t" : : "m" (*((float*)nRegReturn)) : "16" ); break; case typelib_TypeClass_DOUBLE: __asm__ volatile ( "ld 0,%0\n\t" : : "m" (*((double*)nRegReturn)) : "16" ); break; case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: __asm__ volatile ( "lm 2,3,%0\n\t" : : "m"(nRegReturn[0]) : "2", "3" ); break; default: __asm__ volatile ( "l 2,%0\n\t" : : "m"(nRegReturn[0]) : "2" ); break; } } //================================================================================================== class MediateClassData { typedef ::std::hash_map< OUString, void *, OUStringHash > t_classdata_map; t_classdata_map m_map; Mutex m_mutex; public: void const * get_vtable( typelib_InterfaceTypeDescription * pTD ) SAL_THROW( () ); inline MediateClassData() SAL_THROW( () ) {} ~MediateClassData() SAL_THROW( () ); }; //__________________________________________________________________________________________________ MediateClassData::~MediateClassData() SAL_THROW( () ) { OSL_TRACE( "> calling ~MediateClassData(): freeing mediate vtables." ); for ( t_classdata_map::const_iterator iPos( m_map.begin() ); iPos != m_map.end(); ++iPos ) { ::rtl_freeMemory( iPos->second ); } } //-------------------------------------------------------------------------------------------------- static inline void codeSnippet( long * code, sal_uInt32 vtable_pos, bool simple_ret_type ) SAL_THROW( () ) { if (! simple_ret_type) vtable_pos |= 0x80000000; OSL_ASSERT( sizeof (long) == 4 ); /* generate this code */ // lr %r0,%r13 // bras %r13,0x6 // .long cpp_vtable_call // .long vtable_pos // stm %r2,%r6,8(%r15) // std %f0,64(%r15) // std %f2,72(%r15) // l %r2,4(%r13) // la %r3,8(%r15) // la %r4,64(%r15) // la %r5,96(%r15) // l %r1,0(%r13) // lr %r13,%r0 // br %r1 * ((short*)code)++ = 0x180d; * code++ = 0xa7d50006; * code++ = cpp_vtable_call; * code++ = vtable_pos; * code++ = 0x9026f008; * code++ = 0x6000f040; * code++ = 0x6020f048; * code++ = 0x5820d004; * code++ = 0x4130f008; * code++ = 0x4140f040; * code++ = 0x4150f060; * code++ = 0x5810d000; * ((short*)code)++ = 0x18d0; * ((short*)code)++ = 0x07f1; } //__________________________________________________________________________________________________ void const * MediateClassData::get_vtable( typelib_InterfaceTypeDescription * pTD ) SAL_THROW( () ) { void * buffer; const int nSnippetSize = 50; // avoiding locked counts OUString const & unoName = *(OUString const *)&((typelib_TypeDescription *)pTD)->pTypeName; { MutexGuard aGuard( m_mutex ); t_classdata_map::const_iterator iFind( m_map.find( unoName ) ); if (iFind == m_map.end()) { // create new vtable sal_Int32 nSlots = pTD->nMapFunctionIndexToMemberIndex; buffer = ::rtl_allocateMemory( ((2+ nSlots) * sizeof (void *)) + (nSlots *nSnippetSize) ); ::std::pair< t_classdata_map::iterator, bool > insertion( m_map.insert( t_classdata_map::value_type( unoName, buffer ) ) ); OSL_ENSURE( insertion.second, "### inserting new vtable buffer failed?!" ); void ** slots = (void **)buffer; *slots++ = 0; *slots++ = 0; // rtti char * code = (char *)(slots + nSlots); sal_uInt32 vtable_pos = 0; sal_Int32 nAllMembers = pTD->nAllMembers; typelib_TypeDescriptionReference ** ppAllMembers = pTD->ppAllMembers; for ( sal_Int32 nPos = 0; nPos < nAllMembers; ++nPos ) { typelib_TypeDescription * pTD = 0; TYPELIB_DANGER_GET( &pTD, ppAllMembers[ nPos ] ); OSL_ASSERT( pTD ); if (typelib_TypeClass_INTERFACE_ATTRIBUTE == pTD->eTypeClass) { bool simple_ret = cppu_isSimpleType( ((typelib_InterfaceAttributeTypeDescription *)pTD)->pAttributeTypeRef->eTypeClass ); // get method *slots = code; codeSnippet( (long *)code, vtable_pos++, simple_ret ); code += nSnippetSize; slots++; if (! ((typelib_InterfaceAttributeTypeDescription *)pTD)->bReadOnly) { // set method *slots = code; codeSnippet( (long *)code, vtable_pos++, true ); code += nSnippetSize; slots++; } } else { bool simple_ret = cppu_isSimpleType( ((typelib_InterfaceMethodTypeDescription *)pTD)->pReturnTypeRef->eTypeClass ); *slots = code; codeSnippet( (long *)code, vtable_pos++, simple_ret ); code += nSnippetSize; slots++; } TYPELIB_DANGER_RELEASE( pTD ); } OSL_ASSERT( vtable_pos == nSlots ); } else { buffer = iFind->second; } } return ((void **)buffer +2); } //================================================================================================== void SAL_CALL cppu_cppInterfaceProxy_patchVtable( XInterface * pCppI, typelib_InterfaceTypeDescription * pTypeDescr ) throw () { static MediateClassData * s_pMediateClassData = 0; if (! s_pMediateClassData) { MutexGuard aGuard( Mutex::getGlobalMutex() ); if (! s_pMediateClassData) { #ifdef LEAK_STATIC_DATA s_pMediateClassData = new MediateClassData(); #else static MediateClassData s_aMediateClassData; s_pMediateClassData = &s_aMediateClassData; #endif } } *(void const **)pCppI = s_pMediateClassData->get_vtable( pTypeDescr ); } } extern "C" { //################################################################################################## sal_Bool SAL_CALL component_canUnload( TimeValue * pTime ) SAL_THROW_EXTERN_C() { return CPPU_CURRENT_NAMESPACE::g_moduleCount.canUnload( &CPPU_CURRENT_NAMESPACE::g_moduleCount, pTime ); } //################################################################################################## void SAL_CALL uno_initEnvironment( uno_Environment * pCppEnv ) SAL_THROW_EXTERN_C() { CPPU_CURRENT_NAMESPACE::cppu_cppenv_initEnvironment( pCppEnv ); } //################################################################################################## void SAL_CALL uno_ext_getMapping( uno_Mapping ** ppMapping, uno_Environment * pFrom, uno_Environment * pTo ) SAL_THROW_EXTERN_C() { CPPU_CURRENT_NAMESPACE::cppu_ext_getMapping( ppMapping, pFrom, pTo ); } }