diff options
Diffstat (limited to 'bridges/source/cpp_uno/gcc3_ios/cpp2uno.cxx')
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_ios/cpp2uno.cxx | 540 |
1 files changed, 540 insertions, 0 deletions
diff --git a/bridges/source/cpp_uno/gcc3_ios/cpp2uno.cxx b/bridges/source/cpp_uno/gcc3_ios/cpp2uno.cxx new file mode 100644 index 000000000..21de11b5e --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_ios/cpp2uno.cxx @@ -0,0 +1,540 @@ +/* -*- 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 <com/sun/star/uno/RuntimeException.hpp> +#include <sal/log.hxx> +#include <uno/data.h> +#include <typelib/typedescription.hxx> +#include "bridge.hxx" +#include "cppinterfaceproxy.hxx" +#include "types.hxx" +#include "vtablefactory.hxx" +#include "share.hxx" + + + +extern "C" int codeSnippets[]; +const int nFunIndexes = 8; +const int nVtableOffsets = 4; + + + +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, + sal_Int32 nParams, + typelib_MethodParameter * pParams, + void ** pCallStack, + sal_Int64 * pRegisterReturn /* space for register return */ ) + { + // pCallStack: x8, lr, d0..d7, x0..x7, rest of params originally on stack + char *pTopStack = (char *)pCallStack; + char *pFloatRegs = pTopStack + 2; + char *pGPRegs = pTopStack + (2+8)*8; + char *pStackedArgs = pTopStack + (2+8+8)*8; + + int nGPR = 0; + int nFPR = 0; + + // return + typelib_TypeDescription * pReturnTypeDescr = 0; + if (pReturnTypeRef) + TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); + + void * pUnoReturn = 0; + // complex return ptr: if != 0 && != pUnoReturn, reconversion need + void * pCppReturn = 0; + + if (pReturnTypeDescr) + { + if (!arm::return_in_x8(pReturnTypeRef)) + pUnoReturn = pRegisterReturn; // direct way for simple types + else // complex return via x8 + { + pCppReturn = pCallStack[0]; + + pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( + pReturnTypeDescr ) + ? alloca( pReturnTypeDescr->nSize ) + : pCppReturn); // direct way + } + } + + // Skip 'this' + pGPRegs += 8; + nGPR++; + + // Parameters + void ** pUnoArgs = (void **)alloca( sizeof(void *) * nParams ); + void ** pCppArgs = (void **)alloca( sizeof(void *) * nParams ); + + // Indices of values this have to be converted (interface conversion + // cpp<=>uno) + int * pTempIndices = (sal_Int32 *)alloca( sizeof(int) * nParams); + + // Type descriptions for reconversions + typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)alloca( sizeof(typelib_TypeDescription *) * nParams); + + int nTempIndices = 0; + + for ( int 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 )) + { + if (nFPR < 8 && (pParamTypeDescr->eTypeClass == typelib_TypeClass_FLOAT || + pParamTypeDescr->eTypeClass == typelib_TypeClass_DOUBLE)) + { + pCppArgs[nPos] = pUnoArgs[nPos] = pFloatRegs; + pFloatRegs += 8; + nFPR++; + } + else if (pParamTypeDescr->eTypeClass == typelib_TypeClass_FLOAT) + { + if ((pStackedArgs - pTopStack) % 4) + pStackedArgs += 4 - ((pStackedArgs - pTopStack) % 4); + pCppArgs[nPos] = pUnoArgs[nPos] = pStackedArgs; + pStackedArgs += 4; + } + else if (pParamTypeDescr->eTypeClass == typelib_TypeClass_DOUBLE) + { + if ((pStackedArgs - pTopStack) % 8) + pStackedArgs += 8 - ((pStackedArgs - pTopStack) % 8); + pCppArgs[nPos] = pUnoArgs[nPos] = pStackedArgs; + pStackedArgs += 8; + } + else if (nGPR < 8) + { + pCppArgs[nPos] = pUnoArgs[nPos] = pGPRegs; + pGPRegs += 8; + nGPR++; + } + else + switch (pParamTypeDescr->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + if ((pStackedArgs - pTopStack) % 8) + pStackedArgs += 8 - ((pStackedArgs - pTopStack) % 8); + pCppArgs[nPos] = pUnoArgs[nPos] = pStackedArgs; + pStackedArgs += 8; + break; + case typelib_TypeClass_ENUM: + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + if ((pStackedArgs - pTopStack) % 4) + pStackedArgs += 4 - ((pStackedArgs - pTopStack) % 4); + pCppArgs[nPos] = pUnoArgs[nPos] = pStackedArgs; + pStackedArgs += 4; + break; + case typelib_TypeClass_CHAR: + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + if ((pStackedArgs - pTopStack) % 2) + pStackedArgs += 1; + pCppArgs[nPos] = pUnoArgs[nPos] = pStackedArgs; + pStackedArgs += 2; + break; + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + pCppArgs[nPos] = pUnoArgs[nPos] = pStackedArgs; + pStackedArgs += 1; + break; + default: + assert(!"should not happen"); + break; + } + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + else // ptr to complex value | ref + { + if (nGPR < 8) + { + pCppArgs[nPos] = *(void **)pGPRegs; + pGPRegs += 8; + } + else + { + if ((pStackedArgs - pTopStack) % 8) + pStackedArgs += 8 - ((pStackedArgs - pTopStack) % 8); + pCppArgs[nPos] = pStackedArgs; + pStackedArgs += 8; + } + + 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 ), + pCppArgs[nPos], pParamTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + pTempIndices[nTempIndices] = nPos; // has to be reconverted + // will be released at reconversion + ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; + } + else // direct way + { + pUnoArgs[nPos] = pCppArgs[nPos]; + // 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--; ) + { + int 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--; ) + { + int 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 ); + } + *(void **)pRegisterReturn = pCppReturn; + } + if (pReturnTypeDescr) + { + typelib_TypeClass eRet = + (typelib_TypeClass)pReturnTypeDescr->eTypeClass; + TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); + return eRet; + } + else + return typelib_TypeClass_VOID; + } + } + + + static void cpp_mediate(sal_Int32 nFunctionIndex, + sal_Int32 nVtableOffset, + void ** pCallStack) + { + sal_Int64 nRegReturn; + sal_Int64 *pRegisterReturn = &nRegReturn; + + // pCallStack: x8, lr, d0..d7, x0..x7, rest of params originally on stack + // _this_ ptr is patched cppu_XInterfaceProxy object + void *pThis = pCallStack[2 + 8]; + + pThis = static_cast< char * >(pThis) - nVtableOffset; + bridges::cpp_uno::shared::CppInterfaceProxy * pCppI = + bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy( + pThis); + + typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr(); + + // determine called method + assert( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex ); + + if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex) + { + throw RuntimeException( "illegal vtable index!", (XInterface *)pCppI ); + } + + 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 + 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() + [[fallthrough]]; + 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 ); + } + } + + (void)eRet; + return; + } +} + +/** + * is called on incoming vtable calls + * (called by asm snippets) + */ + +extern "C" void cpp_vtable_call( sal_Int32 func, sal_Int32 offset, + void **pStack ) +{ + cpp_mediate(func, offset, pStack); +} + +namespace +{ + unsigned char *codeSnippet(const typelib_InterfaceTypeDescription *type, + const typelib_TypeDescription *member, + sal_Int32 functionIndex, + sal_Int32 vtableOffset) + { + // For now temporarily assert when we get here. The intent is + // that we won't need the code snippets at all on iOS. + assert(false); + + assert(functionIndex < nFunIndexes); + if (!(functionIndex < nFunIndexes)) + return NULL; + + assert(vtableOffset < nVtableOffsets); + if (!(vtableOffset < nVtableOffsets)) + return NULL; + + // The codeSnippets table is indexed by functionIndex and vtableOffset + + int index = functionIndex*nVtableOffsets + vtableOffset; + unsigned char *result = ((unsigned char *) &codeSnippets) + codeSnippets[index]; + + SAL_INFO( "bridges", "codeSnippet(" << OUString(type->aBase.pTypeName) << "::" << OUString(member->pTypeName) << "): [" << functionIndex << "," << vtableOffset << "]=" << (void *) result << " (" << std::hex << ((int*)result)[0] << "," << ((int*)result)[1] << "," << ((int*)result)[2] << "," << ((int*)result)[3] << ")"); + + return result; + } +} + +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); +} + +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: + { + typelib_InterfaceAttributeTypeDescription *pAttrTD = + reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( member ); + + // Getter: + (s++)->fn = codeSnippet( type, member, functionOffset++, vtableOffset ); + + // Setter: + if (!pAttrTD->bReadOnly) + { + (s++)->fn = codeSnippet( type, member, functionOffset++, vtableOffset ); + } + break; + } + case typelib_TypeClass_INTERFACE_METHOD: + { + (s++)->fn = codeSnippet( type, member, functionOffset++, vtableOffset ); + break; + } + default: + assert(false); + break; + } + TYPELIB_DANGER_RELEASE(member); + } + return code; +} + + + +void bridges::cpp_uno::shared::VtableFactory::flushCode( + unsigned char const *, unsigned char const *) +{ + // No dynamic code generation so nothing to flush +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |