/************************************************************** * * 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 #include #include #include #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 "cc50_solaris_intel.hxx" using namespace com::sun::star::uno; namespace { //================================================================================================== void 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 ** pCallStack, sal_Int64 * pRegisterReturn /* space for register return */ ) { // pCallStack: ret, [return ptr], this, params char * pCppStack = (char *)(pCallStack +1); // 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**)pCppStack; pCppStack += sizeof( void* ); pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) ? alloca( pReturnTypeDescr->nSize ) : pCppReturn); // direct way } } // pop this pCppStack += sizeof( void* ); // 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 && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) // value { pCppArgs[ nPos ] = pUnoArgs[ nPos ] = pCppStack; switch (pParamTypeDescr->eTypeClass) { case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: case typelib_TypeClass_DOUBLE: pCppStack += sizeof(sal_Int32); // extra long } // no longer needed TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } else // ptr to complex value | ref { pCppArgs[nPos] = *(void **)pCppStack; 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 ), *(void **)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] = *(void **)pCppStack; // no longer needed TYPELIB_DANGER_RELEASE( pParamTypeDescr ); } } pCppStack += sizeof(sal_Int32); // standard parameter length } // 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 no 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::cc50_solaris_intel_raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() ); // has to destruct the any } 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, reinterpret_cast< uno_ReleaseFunc >(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 eax *(void **)pRegisterReturn = pCppReturn; } if (pReturnTypeDescr) { TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); } } } //================================================================================================== extern "C" void cpp_vtable_call( int nFunctionIndex, int nVtableOffset, void** pCallStack, sal_Int64 nRegReturn ) { OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" ); // pCallStack: ret adr, [ret *], this, params void * pThis; if( nFunctionIndex & 0x80000000 ) { nFunctionIndex &= 0x7fffffff; pThis = pCallStack[2]; } else { pThis = pCallStack[1]; } pThis = static_cast< char * >(pThis) - nVtableOffset; bridges::cpp_uno::shared::CppInterfaceProxy * pCppI = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy( pThis); typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr(); 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!" ); TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); switch (aMemberDescr.get()->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE: { if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex) { // is GET method cpp2uno_call( pCppI, aMemberDescr.get(), ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef, 0, 0, // no params pCallStack, &nRegReturn ); } else { // is SET method typelib_MethodParameter aParam; aParam.pTypeRef = ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef; aParam.bIn = sal_True; aParam.bOut = sal_False; cpp2uno_call( pCppI, aMemberDescr.get(), 0, // indicates void return 1, &aParam, pCallStack, &nRegReturn ); } break; } case typelib_TypeClass_INTERFACE_METHOD: { // is METHOD switch (nFunctionIndex) { // standard XInterface vtable calls case 1: // acquire() pCppI->acquireProxy(); // non virtual call! break; case 2: // release() pCppI->releaseProxy(); // non virtual call! break; case 0: // queryInterface() opt { typelib_TypeDescription * pTD = 0; TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pCallStack[3] )->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 * >( pCallStack[1] ), &pInterface, pTD, reinterpret_cast< uno_AcquireFunc >(cpp_acquire) ); pInterface->release(); TYPELIB_DANGER_RELEASE( pTD ); *(void **)&nRegReturn = pCallStack[1]; break; } TYPELIB_DANGER_RELEASE( pTD ); } } // else perform queryInterface() default: cpp2uno_call( pCppI, aMemberDescr.get(), ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef, ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams, ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams, pCallStack, &nRegReturn ); } break; } default: { throw RuntimeException( rtl::OUString::createFromAscii("no member description found!"), (XInterface *)pThis ); } } } //================================================================================================== bool isSimpleStruct(typelib_TypeDescriptionReference * type) { typelib_TypeDescription * td = 0; TYPELIB_DANGER_GET(&td, type); OSL_ASSERT(td != 0); for (typelib_CompoundTypeDescription * ctd = reinterpret_cast< typelib_CompoundTypeDescription * >(td); ctd != 0; ctd = ctd->pBaseTypeDescription) { OSL_ASSERT(ctd->aBase.eTypeClass == typelib_TypeClass_STRUCT); for (sal_Int32 i = 0; i < ctd->nMembers; ++i) { typelib_TypeClass c = ctd->ppTypeRefs[i]->eTypeClass; switch (c) { case typelib_TypeClass_STRING: case typelib_TypeClass_TYPE: case typelib_TypeClass_ANY: case typelib_TypeClass_SEQUENCE: case typelib_TypeClass_INTERFACE: return false; case typelib_TypeClass_STRUCT: if (!isSimpleStruct(ctd->ppTypeRefs[i])) { return false; } break; default: OSL_ASSERT( c <= typelib_TypeClass_DOUBLE || c == typelib_TypeClass_ENUM); break; } } } TYPELIB_DANGER_RELEASE(td); return true; } extern "C" void privateSnippetExecutorGeneral(); extern "C" void privateSnippetExecutorVoid(); extern "C" void privateSnippetExecutorHyper(); extern "C" void privateSnippetExecutorFloat(); extern "C" void privateSnippetExecutorDouble(); extern "C" void privateSnippetExecutorStruct(); extern "C" typedef void (*PrivateSnippetExecutor)(); int const codeSnippetSize = 16; unsigned char * codeSnippet( unsigned char * code, sal_Int32 functionIndex, sal_Int32 vtableOffset, typelib_TypeDescriptionReference * returnType) { typelib_TypeClass c = returnType == 0 ? typelib_TypeClass_VOID : returnType->eTypeClass; if (returnType != 0 && !bridges::cpp_uno::shared::isSimpleType(c)) { functionIndex |= 0x80000000; } PrivateSnippetExecutor exec; switch (c) { case typelib_TypeClass_VOID: exec = privateSnippetExecutorVoid; break; case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: exec = privateSnippetExecutorHyper; break; case typelib_TypeClass_FLOAT: exec = privateSnippetExecutorFloat; break; case typelib_TypeClass_DOUBLE: exec = privateSnippetExecutorDouble; break; case typelib_TypeClass_STRUCT: OSL_ASSERT(returnType != 0); // For "simple" (more-or-less POD, but not exactly) structs, the caller // pops the pointer to the return value off the stack, as documented in // the Intel SYSV ABI; for other structs (which includes STRING, TYPE, // ANY, sequences, and interfaces, btw.), the callee pops the pointer to // the return value off the stack: exec = isSimpleStruct(returnType) ? privateSnippetExecutorStruct : privateSnippetExecutorGeneral; break; default: exec = privateSnippetExecutorGeneral; break; } unsigned char * p = code; OSL_ASSERT(sizeof (sal_Int32) == 4); // mov function_index, %eax: *p++ = 0xB8; *reinterpret_cast< sal_Int32 * >(p) = functionIndex; p += sizeof (sal_Int32); // mov vtable_offset, %edx: *p++ = 0xBA; *reinterpret_cast< sal_Int32 * >(p) = vtableOffset; p += sizeof (sal_Int32); // jmp privateSnippetExecutor: *p++ = 0xE9; #pragma disable_warn void * e = reinterpret_cast< void * >(exec); #pragma enable_warn *reinterpret_cast< sal_Int32 * >(p) = static_cast< unsigned char * >(e) - p - sizeof (sal_Int32); p += sizeof (sal_Int32); OSL_ASSERT(p - code <= codeSnippetSize); return code + codeSnippetSize; } } 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) + 1; } sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize( sal_Int32 slotCount) { return (slotCount + 3) * 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) + 2; slots[-3].fn = 0; // RTTI slots[-2].fn = 0; // null slots[-1].fn = 0; // destructor 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]); OSL_ASSERT(member != 0); switch (member->eTypeClass) { case typelib_TypeClass_INTERFACE_ATTRIBUTE: // Getter: (s++)->fn = code; code = codeSnippet( code, functionOffset++, vtableOffset, reinterpret_cast< typelib_InterfaceAttributeTypeDescription * >( member)->pAttributeTypeRef); // Setter: if (!reinterpret_cast< typelib_InterfaceAttributeTypeDescription * >( member)->bReadOnly) { (s++)->fn = code; code = codeSnippet(code, functionOffset++, vtableOffset, 0); } break; case typelib_TypeClass_INTERFACE_METHOD: (s++)->fn = code; code = codeSnippet( code, functionOffset++, vtableOffset, reinterpret_cast< typelib_InterfaceMethodTypeDescription * >( member)->pReturnTypeRef); break; default: OSL_ASSERT(false); break; } TYPELIB_DANGER_RELEASE(member); } return code; } void bridges::cpp_uno::shared::VtableFactory::flushCode( unsigned char const *, unsigned char const *) {}