/* -*- 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" 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 ** pCallStack, sal_Int64 * pRegisterReturn /* space for register return */ ) { // pCallStack: [ret ptr], this, params char * pCppStack = (char *)pCallStack; // 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; pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) ? alloca( pReturnTypeDescr->nSize ) : pCppReturn); // direct way pCppStack += sizeof( void* ); } } // pop this pCppStack += sizeof( void* ); // stack space static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!"); // parameters void ** pUnoArgs = (void **)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 { pCppArgs[nPos] = pUnoArgs[nPos] = CPPU_CURRENT_NAMESPACE::adjustPointer(pCppStack, pParamTypeDescr); switch (pParamTypeDescr->eTypeClass) { case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: case typelib_TypeClass_DOUBLE: { if ((reinterpret_cast< long >(pCppStack) & 7) != 0) { static_assert(sizeof (double) == sizeof (sal_Int64), "boo"); void * pDest = alloca( sizeof (sal_Int64) ); *reinterpret_cast< sal_Int32 * >(pDest) = *reinterpret_cast< sal_Int32 const * >(pCppStack); *(reinterpret_cast< sal_Int32 * >(pDest) + 1) = *(reinterpret_cast< sal_Int32 const * >(pCppStack) + 1); pCppArgs[nPos] = pUnoArgs[nPos] = pDest; } pCppStack += sizeof (sal_Int32); // extra long break; default: break; } } // 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 ); 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] = alloca( pParamTypeDescr->nSize ), *(void **)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] = *(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 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 eax *(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 ** pCallStack, sal_Int64 * pRegisterReturn /* space for register return */ ) { static_assert(sizeof(sal_Int32)==sizeof(void *), "### unexpected!"); // pCallStack: this, params // eventual [ret*] lies at pCallStack -1 // so count down pCallStack by one to keep it simple // pCallStack: this, params // eventual [ret*] lies at pCallStack -1 // so count down pCallStack by one to keep it simple bridges::cpp_uno::shared::CppInterfaceProxy * pCppI = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy( static_cast< char * >(*pCallStack) - nVtableOffset); if ((nFunctionIndex & 0x80000000) != 0) { nFunctionIndex &= 0x7FFFFFFF; --pCallStack; } 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 *)pCppI); } // determine called method sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex]; assert(nMemberPos < pTypeDescr->nAllMembers); TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); #if defined BRIDGES_DEBUG OString cstr( OUStringToOString( aMemberDescr.get()->pTypeName, RTL_TEXTENCODING_ASCII_US ) ); fprintf( stderr, "calling %s, nFunctionIndex=%d\n", cstr.getStr(), nFunctionIndex ); #endif 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 pCallStack, 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, pCallStack, 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 * >( pCallStack[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 * >( pCallStack[0] ), &pInterface, pTD, cpp_acquire ); pInterface->release(); TYPELIB_DANGER_RELEASE( pTD ); *(void **)pRegisterReturn = pCallStack[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, pCallStack, pRegisterReturn ); } break; } default: { throw RuntimeException( "no member description found!", (XInterface *)pCppI ); } } return eRet; } /** * is called on incoming vtable calls * (called by asm snippets) */ static void cpp_vtable_call() { sal_Int64 nRegReturn; int nFunctionIndex; void** pCallStack; int vTableOffset; void * pRegReturn = &nRegReturn; __asm__( "st %%i0, %0\n\t" "st %%i1, %1\n\t" "st %%i2, %2\n\t" : : "m"(nFunctionIndex), "m"(pCallStack), "m"(vTableOffset) ); // fprintf(stderr,"cpp_mediate nFunctionIndex=%x\n",nFunctionIndex); // fflush(stderr); const sal_Bool bComplex = (nFunctionIndex & 0x80000000) ? sal_True : sal_False; typelib_TypeClass aType = cpp_mediate( nFunctionIndex, vTableOffset, pCallStack+17, (sal_Int64*)&nRegReturn ); switch( aType ) { case typelib_TypeClass_BOOLEAN: case typelib_TypeClass_BYTE: __asm__( "ld %0, %%l0\n\t" "ldsb [%%l0], %%i0\n" : : "m"(pRegReturn) ); break; case typelib_TypeClass_CHAR: case typelib_TypeClass_SHORT: case typelib_TypeClass_UNSIGNED_SHORT: __asm__( "ld %0, %%l0\n\t" "ldsh [%%l0], %%i0\n" : : "m"(pRegReturn) ); break; case typelib_TypeClass_HYPER: case typelib_TypeClass_UNSIGNED_HYPER: __asm__( "ld %0, %%l0\n\t" "ld [%%l0], %%i0\n\t" "add %%l0, 4, %%l0\n\t" "ld [%%l0], %%i1\n\t" : : "m"(pRegReturn) ); break; case typelib_TypeClass_FLOAT: __asm__( "ld %0, %%l0\n\t" "ld [%%l0], %%f0\n" : : "m"(pRegReturn) ); break; case typelib_TypeClass_DOUBLE: __asm__( "ld %0, %%l0\n\t" "ldd [%%l0], %%f0\n" : : "m"(pRegReturn) ); break; case typelib_TypeClass_VOID: break; default: __asm__( "ld %0, %%l0\n\t" "ld [%%l0], %%i0\n" : : "m"(pRegReturn) ); break; } if( bComplex ) { __asm__( "add %i7, 4, %i7\n\t" ); // after call to complex return valued function there is an unimp instruction } } int const codeSnippetSize = 56; unsigned char * codeSnippet( unsigned char * code, sal_Int32 functionIndex, sal_Int32 vtableOffset, bool simpleRetType) { sal_uInt32 index = functionIndex; if (!simpleRetType) { index |= 0x80000000; } unsigned int * p = reinterpret_cast< unsigned int * >(code); static_assert(sizeof (unsigned int) == 4, "boo"); // st %o0, [%sp+68]: *p++ = 0xD023A044; // st %o1, [%sp+72]: *p++ = 0xD223A048; // st %o2, [%sp+76]: *p++ = 0xD423A04C; // st %o3, [%sp+80]: *p++ = 0xD623A050; // st %o4, [%sp+84]: *p++ = 0xD823A054; // st %o5, [%sp+88]: *p++ = 0xDA23A058; // sethi %hi(index), %o0: *p++ = 0x11000000 | (index >> 10); // or %o0, %lo(index), %o0: *p++ = 0x90122000 | (index & 0x3FF); // sethi %hi(vtableOffset), %o2: *p++ = 0x15000000 | (vtableOffset >> 10); // or %o2, %lo(vtableOffset), %o2: *p++ = 0x9412A000 | (vtableOffset & 0x3FF); // sethi %hi(cpp_vtable_call), %o3: *p++ = 0x17000000 | (reinterpret_cast< unsigned int >(cpp_vtable_call) >> 10); // or %o3, %lo(cpp_vtable_call), %o3: *p++ = 0x9612E000 | (reinterpret_cast< unsigned int >(cpp_vtable_call) & 0x3FF); // jmpl %o3, %g0: *p++ = 0x81C2C000; // mov %sp, %o1: *p++ = 0x9210000E; assert(reinterpret_cast< unsigned char * >(p) - code <= codeSnippetSize); return code + codeSnippetSize; } } //end of namespace 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; //null slots[-1].fn = 0; //destructor 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; 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 + 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: assert(false); break; } TYPELIB_DANGER_RELEASE(member); } return code; } // use flush code from cc50_solaris_sparc extern "C" void doFlushCode(unsigned long address, unsigned long count); void bridges::cpp_uno::shared::VtableFactory::flushCode( unsigned char const * begin, unsigned char const * end) { unsigned long n = end - begin; if (n != 0) { unsigned long adr = reinterpret_cast< unsigned long >(begin); unsigned long off = adr & 7; doFlushCode(adr - off, (n + off + 7) >> 3); } } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */