/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * 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 . */ #include #include #include #include #include "bridge.hxx" #include "cppinterfaceproxy.hxx" #include "types.hxx" #include "vtablefactory.hxx" #include "share.hxx" #include 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, double * fpreg, void ** ovrflw, sal_uInt64 * pRegisterReturn /* space for register return */ ) { // gpreg: [ret *], this, [gpr params] // fpreg: [fpr params] // ovrflw: [remainder of params] // 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 sal_Int32 ng = 0; sal_Int32 nf = 0; ovrflw -= ppc::MAX_GPR_REGS; if (pReturnTypeDescr) { if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr )) pUnoReturn = pRegisterReturn; // direct way for simple types else // complex return via ptr (pCppReturn) { pCppReturn = *gpreg; ++gpreg; ++ng; ++ovrflw; pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) ? __builtin_alloca( pReturnTypeDescr->nSize ) : pCppReturn); // direct way } } // pop this ++gpreg; ++ng; ++ovrflw; // stack space static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!"); // parameters void ** pUnoArgs = (void **)__builtin_alloca( 4 * sizeof(void *) * nParams ); void ** pCppArgs = pUnoArgs + nParams; // indices of values this have to be converted (interface conversion cpp<=>uno) sal_Int32 * pTempIndices = (sal_Int32 *)(pUnoArgs + (2 * nParams)); // type descriptions for reconversions typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams)); sal_Int32 nTempIndices = 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 && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) // value { switch (pParamTypeDescr->eTypeClass) { case typelib_TypeClass_BOOLEAN: case typelib_TypeClass_BYTE: if (ng < ppc::MAX_GPR_REGS) { *ovrflw = *gpreg++; ++ng; } pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + (sizeof(void*)-1)); ++ovrflw; break; case typelib_TypeClass_CHAR: case typelib_TypeClass_SHORT: case typelib_TypeClass_UNSIGNED_SHORT: if (ng < ppc::MAX_GPR_REGS) { *ovrflw = *gpreg++; ++ng; } pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + (sizeof(void*)-2)); ++ovrflw; break; case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw; for (int i = 0; i < 2; ++i) { if (ng < ppc::MAX_GPR_REGS) { *ovrflw = *gpreg++; ++ng; } ++ovrflw; } break; case typelib_TypeClass_DOUBLE: if (nf < ppc::MAX_SSE_REGS) { pCppArgs[nPos] = pUnoArgs[nPos] = fpreg; ++fpreg; ++nf; } else { pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw; } if (ng < ppc::MAX_GPR_REGS) { ng+=2; gpreg+=2; } ovrflw+=2; break; case typelib_TypeClass_FLOAT: if (nf < ppc::MAX_SSE_REGS) { pCppArgs[nPos] = pUnoArgs[nPos] = fpreg; ++fpreg; ++nf; } else { pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw; } if (ng < ppc::MAX_GPR_REGS) { ++gpreg; ++ng; } ++ovrflw; break; default: if (ng < ppc::MAX_GPR_REGS) { *ovrflw = *gpreg++; ++ng; } pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw; ++ovrflw; break; } // no longer needed TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } else // ptr to complex value | ref { void *pCppStack; //temporary stack pointer if (ng < ppc::MAX_GPR_REGS) { *ovrflw = *gpreg++; ++ng; } pCppArgs[nPos] = pCppStack = *ovrflw++; if (! rParam.bIn) // is pure out { // uno out is unconstructed mem! pUnoArgs[nPos] = __builtin_alloca( pParamTypeDescr->nSize ); pTempIndices[nTempIndices] = nPos; // will be released at reconversion ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; } // is in/inout else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr )) { uno_copyAndConvertData( pUnoArgs[nPos] = __builtin_alloca( pParamTypeDescr->nSize ), pCppStack, pParamTypeDescr, pThis->getBridge()->getCpp2Uno() ); pTempIndices[nTempIndices] = nPos; // has to be reconverted // will be released at reconversion ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; } else // direct way { pUnoArgs[nPos] = 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->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc ); // in case an exception occurred... if (pUnoExc) { // destruct temporary in/inout params for ( ; nTempIndices--; ) { sal_Int32 nIndex = pTempIndices[nTempIndices]; if (pParams[nIndex].bIn) // is in/inout => was constructed uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndices], 0 ); TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] ); } 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 occurred... { // temporary params for ( ; nTempIndices--; ) { sal_Int32 nIndex = pTempIndices[nTempIndices]; typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices]; 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_Int32 nFunctionIndex, sal_Int32 nVtableOffset, void ** gpreg, double * fpreg, void ** ovrflw, sal_uInt64 * pRegisterReturn /* space for register return */ ) { static_assert(sizeof(sal_Int32)==sizeof(void *), "### unexpected!"); // gpreg: [ret *], this, [other gpr params] // fpreg: [fpr params] // ovrflw: [gpr or fpr params (in space allocated for all params properly aligned)] void * pThis; if( nFunctionIndex & 0x8000 ) { nFunctionIndex &= 0x7fff; pThis = gpreg[1]; } else { pThis = gpreg[0]; } pThis = static_cast< char * >(pThis) - nVtableOffset; bridges::cpp_uno::shared::CppInterfaceProxy * pCppI = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(pThis); typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr(); if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex) { SAL_WARN( "bridges", "illegal " << OUString::unacquired(&pTypeDescr->aBase.pTypeName) << " vtable index " << nFunctionIndex << "/" << pTypeDescr->nMapFunctionIndexToMemberIndex); throw RuntimeException( ("illegal " + OUString::unacquired(&pTypeDescr->aBase.pTypeName) + " vtable index " + OUString::number(nFunctionIndex) + "/" + OUString::number(pTypeDescr->nMapFunctionIndexToMemberIndex)), (XInterface *)pThis); } // determine called method sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex]; assert(nMemberPos < pTypeDescr->nAllMembers); 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: { throw RuntimeException( "no member description found!", (XInterface *)pThis ); } } return eRet; } /** * is called on incoming vtable calls * (called by asm snippets) */ static sal_uInt64 cpp_vtable_call(sal_Int32 r3, sal_Int32 r4, sal_Int32 r5, sal_Int32 r6, sal_Int32 r7, sal_Int32 r8, sal_Int32 r9, sal_Int32 r10, sal_Int32 firstonstack) { volatile unsigned long nOffsetAndIndex; __asm__ __volatile__( "mr %0, 11\n\t" : "=r" (nOffsetAndIndex) : ); sal_Int32 nVtableOffset = (nOffsetAndIndex >> 16); sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFF); void ** ovrflw = (void**)&firstonstack; sal_Int32 gpreg[ppc::MAX_GPR_REGS]; gpreg[0] = r3; gpreg[1] = r4; gpreg[2] = r5; gpreg[3] = r6; gpreg[4] = r7; gpreg[5] = r8; gpreg[6] = r9; gpreg[7] = r10; double fpreg[ppc::MAX_SSE_REGS]; register double d0 asm("fr1"); fpreg[0] = d0; register double d1 asm("fr2"); fpreg[1] = d1; register double d2 asm("fr3"); fpreg[2] = d2; register double d3 asm("fr4"); fpreg[3] = d3; register double d4 asm("fr5"); fpreg[4] = d4; register double d5 asm("fr6"); fpreg[5] = d5; register double d6 asm("fr7"); fpreg[6] = d6; register double d7 asm("fr8"); fpreg[7] = d7; register double d8 asm("fr9"); fpreg[8] = d8; register double d9 asm("fr10"); fpreg[9] = d9; register double d10 asm("fr11"); fpreg[10] = d10; register double d11 asm("fr12"); fpreg[11] = d11; register double d12 asm("fr13"); fpreg[12] = d12; #if OSL_DEBUG_LEVEL > 2 for(int i = 0; i < 8; ++i) { fprintf(stderr, "general reg %d is %x\n", i, gpreg[i]); } for(int i = 0; i < 13; ++i) { fprintf(stderr, "sse reg %d is %f\n", i, fpreg[i]); fprintf(stderr, "sse reg %d is %llx\n", i, fpreg[i]); } for(int i = -8; i < 8; ++i) { fprintf(stderr, "overflow arg %d is %x\n", i, ovrflw[i]); } #endif sal_uInt64 nRegReturn=0; typelib_TypeClass aType = cpp_mediate( nFunctionIndex, nVtableOffset, (void**)gpreg, fpreg, ovrflw, &nRegReturn ); sal_uInt32 *pRegReturn = (sal_uInt32*)&nRegReturn; switch( aType ) { case typelib_TypeClass_BOOLEAN: pRegReturn[0] = (sal_uInt32)(*(char *)pRegReturn); break; case typelib_TypeClass_BYTE: pRegReturn[0] = (sal_Int32)(*(unsigned char *)pRegReturn); break; case typelib_TypeClass_SHORT: pRegReturn[0] = (sal_Int32)(*(short *)pRegReturn); break; case typelib_TypeClass_CHAR: case typelib_TypeClass_UNSIGNED_SHORT: pRegReturn[0] = (sal_uInt32)(*(unsigned short *)pRegReturn); 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; case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: break; default: pRegReturn[0] = (sal_uInt32)(*(unsigned int*)pRegReturn); break; } return nRegReturn; } int const codeSnippetSize = 3 * sizeof(void*); unsigned char * codeSnippet( unsigned char * code, sal_Int16 functionIndex, sal_Int16 vtableOffset, bool simpleRetType ) { sal_uInt32 nOffsetAndIndex = ( ( vtableOffset ) << 16 ) | (functionIndex ); if (! simpleRetType ) nOffsetAndIndex |= 0x8000; void **raw = (void**)&code[0]; memcpy(raw, (char*)cpp_vtable_call, 2 * sizeof(void*)); raw[2] = (void*)nOffsetAndIndex; 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; } std::size_t 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, sal_Int32, typelib_InterfaceTypeDescription *) { 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, typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset, sal_Int32 functionCount, sal_Int32 vtableOffset) { (*slots) -= functionCount; Slot * s = *slots; for (sal_Int32 i = 0; i < type->nMembers; ++i) { typelib_TypeDescription * member = 0; TYPELIB_DANGER_GET(&member, type->ppMembers[i]); assert(member != 0); switch (member->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE: // Getter: (s++)->fn = code; 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; code = codeSnippet(code, functionOffset++, vtableOffset, true); } break; case typelib_TypeClass_INTERFACE_METHOD: (s++)->fn = code; code = codeSnippet( code, functionOffset++, vtableOffset, bridges::cpp_uno::shared::isSimpleType( reinterpret_cast< typelib_InterfaceMethodTypeDescription * >( member)->pReturnTypeRef)); break; default: assert(false); break; } TYPELIB_DANGER_RELEASE(member); } return code; } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */