diff options
Diffstat (limited to 'bridges/source/cpp_uno/gcc3_ios/uno2cpp-i386.cxx')
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_ios/uno2cpp-i386.cxx | 487 |
1 files changed, 487 insertions, 0 deletions
diff --git a/bridges/source/cpp_uno/gcc3_ios/uno2cpp-i386.cxx b/bridges/source/cpp_uno/gcc3_ios/uno2cpp-i386.cxx new file mode 100644 index 000000000000..6b53831fd565 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_ios/uno2cpp-i386.cxx @@ -0,0 +1,487 @@ +/* -*- 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 . + */ + +#ifdef __i386 + +// For the iOS emulator (i386). Basically a copy of +// ../gcc3_macosx_intel/uno2cpp.cxx with some cleanups and necessary +// changes. + +#include <com/sun/star/uno/RuntimeException.hpp> +#include <sal/log.hxx> + +#include "bridge.hxx" +#include "types.hxx" +#include "unointerfaceproxy.hxx" +#include "vtables.hxx" + +#include "share.hxx" + +using namespace ::com::sun::star::uno; + +namespace +{ + +// The call instruction within the asm section of callVirtualMethod may throw +// exceptions. So that the compiler handles this correctly, it is important +// that (a) callVirtualMethod might call dummy_can_throw_anything (although this +// never happens at runtime), which in turn can throw exceptions, and (b) +// callVirtualMethod is not inlined at its call site (so that any exceptions are +// caught which are thrown from the instruction calling callVirtualMethod): +void callVirtualMethod( + void * pAdjustedThisPtr, + sal_Int32 nVtableIndex, + void * pRegisterReturn, + typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn, + sal_Int32 * pStackLongs, + sal_Int32 nStackLongs ) __attribute__((noinline)); + +void callVirtualMethod( + void * pAdjustedThisPtr, + sal_Int32 nVtableIndex, + void * pRegisterReturn, + typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn, + sal_Int32 * pStackLongs, + sal_Int32 nStackLongs ) +{ + // parameter list is mixed list of * and values + // reference parameters are pointers + + assert(pStackLongs && pAdjustedThisPtr); + static_assert( (sizeof(void *) == 4) && (sizeof(sal_Int32) == 4), "### unexpected size of int!" ); + assert(nStackLongs && pStackLongs && "### no stack in callVirtualMethod !"); + + // never called + if (! pAdjustedThisPtr) CPPU_CURRENT_NAMESPACE::dummy_can_throw_anything("xxx"); // address something + + long edx, eax; // for register returns + void * stackptr; + asm volatile ( + "mov %%esp, %2\n\t" + "mov %3, %%eax\n\t" + "mov %%eax, %%edx\n\t" + // stack padding to keep stack aligned: + "shl $2, %%eax\n\t" + "neg %%eax\n\t" + "add %%esp, %%eax\n\t" + "and $0xf, %%eax\n\t" + "sub %%eax, %%esp\n\t" + // copy: + "mov %%edx, %%eax\n\t" + "dec %%edx\n\t" + "shl $2, %%edx\n\t" + "add %4, %%edx\n" + "Lcopy:\n\t" + "pushl 0(%%edx)\n\t" + "sub $4, %%edx\n\t" + "dec %%eax\n\t" + "jne Lcopy\n\t" + // do the actual call + "mov %5, %%edx\n\t" + "mov 0(%%edx), %%edx\n\t" + "mov %6, %%eax\n\t" + "shl $2, %%eax\n\t" + "add %%eax, %%edx\n\t" + "mov 0(%%edx), %%edx\n\t" + "call *%%edx\n\t" + // save return registers + "mov %%eax, %0\n\t" + "mov %%edx, %1\n\t" + // cleanup stack + "mov %2, %%esp\n\t" + : "=m"(eax), "=m"(edx), "=m"(stackptr) + : "m"(nStackLongs), "m"(pStackLongs), "m"(pAdjustedThisPtr), "m"(nVtableIndex) + : "eax", "edx" ); + switch( pReturnTypeDescr->eTypeClass ) + { + case typelib_TypeClass_VOID: + break; + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + ((long*)pRegisterReturn)[1] = edx; + SAL_FALLTHROUGH; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + case typelib_TypeClass_CHAR: + case typelib_TypeClass_ENUM: + ((long*)pRegisterReturn)[0] = eax; + break; + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + *(unsigned short*)pRegisterReturn = eax; + break; + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + *(unsigned char*)pRegisterReturn = eax; + break; + case typelib_TypeClass_FLOAT: + asm ( "fstps %0" : : "m"(*(char *)pRegisterReturn) ); + break; + case typelib_TypeClass_DOUBLE: + asm ( "fstpl %0\n\t" : : "m"(*(char *)pRegisterReturn) ); + break; + default: { + sal_Int32 const nRetSize = pReturnTypeDescr->nSize; + if (bSimpleReturn && nRetSize <= 8 && nRetSize > 0) { + if (nRetSize > 4) + static_cast<long *>(pRegisterReturn)[1] = edx; + static_cast<long *>(pRegisterReturn)[0] = eax; + } + break; + } + } +} + +static void cpp_call( + bridges::cpp_uno::shared::UnoInterfaceProxy * pThis, + bridges::cpp_uno::shared::VtableSlot aVtableSlot, + typelib_TypeDescriptionReference * pReturnTypeRef, + sal_Int32 nParams, typelib_MethodParameter * pParams, + void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc ) +{ + // max space for: [complex ret ptr], values|ptr ... + char * pCppStack = + (char *)alloca( sizeof(sal_Int32) + ((nParams+2) * sizeof(sal_Int64)) ); + char * pCppStackStart = pCppStack; + + // return + typelib_TypeDescription * pReturnTypeDescr = 0; + TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); + assert(pReturnTypeDescr); + + void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion + bool bSimpleReturn = true; + + if (pReturnTypeDescr) + { + bSimpleReturn = CPPU_CURRENT_NAMESPACE::isSimpleReturnType( + pReturnTypeDescr); + if (bSimpleReturn) + { + pCppReturn = pUnoReturn; // direct way for simple types + } + else + { + pCppReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( + pReturnTypeDescr ) + ? alloca( pReturnTypeDescr->nSize ) + : pUnoReturn); // direct way + // complex return via ptr + *(void **)pCppStack = pCppReturn; + pCppStack += sizeof(void *); + } + } + // push this + void * pAdjustedThisPtr = reinterpret_cast< void ** >(pThis->getCppI()) + + aVtableSlot.offset; + *(void**)pCppStack = pAdjustedThisPtr; + pCppStack += sizeof( void* ); + + // stack space + static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!"); + // args + void ** pCppArgs = (void **)alloca( 3 * sizeof(void *) * nParams ); + // indices of values this have to be converted (interface conversion cpp<=>uno) + sal_Int32 * pTempIndices = (sal_Int32 *)(pCppArgs + nParams); + // type descriptions for reconversions + typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * 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 )) + { + uno_copyAndConvertData( pCppArgs[nPos] = pCppStack, pUnoArgs[nPos], pParamTypeDescr, + pThis->getBridge()->getUno2Cpp() ); + + switch (pParamTypeDescr->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + case typelib_TypeClass_DOUBLE: + pCppStack += sizeof(sal_Int32); // extra long + SAL_FALLTHROUGH; + default: + break; + } + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + else // ptr to complex value | ref + { + if (! rParam.bIn) // is pure out + { + // cpp out is constructed mem, uno out is not! + uno_constructData( + *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ), + pParamTypeDescr ); + pTempIndices[nTempIndices] = nPos; // default constructed for cpp call + // will be released at reconversion + ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; + } + // is in/inout + else if (bridges::cpp_uno::shared::relatesToInterfaceType( + pParamTypeDescr )) + { + uno_copyAndConvertData( + *(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ), + pUnoArgs[nPos], pParamTypeDescr, + pThis->getBridge()->getUno2Cpp() ); + + pTempIndices[nTempIndices] = nPos; // has to be reconverted + // will be released at reconversion + ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; + } + else // direct way + { + *(void **)pCppStack = pCppArgs[nPos] = pUnoArgs[nPos]; + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + } + pCppStack += sizeof(sal_Int32); // standard parameter length + } + + try + { + assert( !( (pCppStack - pCppStackStart ) & 3) && "UNALIGNED STACK !!! (Please DO panic)" ); + callVirtualMethod( + pAdjustedThisPtr, aVtableSlot.index, + pCppReturn, pReturnTypeDescr, bSimpleReturn, + (sal_Int32 *)pCppStackStart, (pCppStack - pCppStackStart) / sizeof(sal_Int32) ); + // NO exception occurred... + *ppUnoExc = 0; + + // reconvert temporary params + for ( ; nTempIndices--; ) + { + sal_Int32 nIndex = pTempIndices[nTempIndices]; + typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices]; + + if (pParams[nIndex].bIn) + { + if (pParams[nIndex].bOut) // inout + { + uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value + uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + } + } + else // pure out + { + uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + } + // destroy temp cpp param => cpp: every param was constructed + uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); + + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + // return value + if (pCppReturn && pUnoReturn != pCppReturn) + { + uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release ); + } + } + catch (...) + { + + SAL_INFO( "bridges.ios", "caught C++ exception" ); + + // fill uno exception + CPPU_CURRENT_NAMESPACE::fillUnoException( abi::__cxa_get_globals()->caughtExceptions, *ppUnoExc, pThis->getBridge()->getCpp2Uno() ); + + // temporary params + for ( ; nTempIndices--; ) + { + sal_Int32 nIndex = pTempIndices[nTempIndices]; + // destroy temp cpp param => cpp: every param was constructed + uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndices], cpp_release ); + TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] ); + } + // return type + if (pReturnTypeDescr) + TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); + } +} + +} + +namespace CPPU_CURRENT_NAMESPACE { +bool isSimpleReturnType(typelib_TypeDescription * pTD, bool recursive) +{ + if (bridges::cpp_uno::shared::isSimpleType( pTD )) + return true; + // Only structs of exactly 1, 2, 4, or 8 bytes are returned through + // registers, see <http://developer.apple.com/documentation/DeveloperTools/ + // Conceptual/LowLevelABI/Articles/IA32.html>: + if (pTD->eTypeClass == typelib_TypeClass_STRUCT && + (recursive || pTD->nSize <= 2 || pTD->nSize == 4 || pTD->nSize == 8)) + { + typelib_CompoundTypeDescription *const pCompTD = + (typelib_CompoundTypeDescription *) pTD; + for ( sal_Int32 pos = pCompTD->nMembers; pos--; ) { + typelib_TypeDescription * pMemberTD = 0; + TYPELIB_DANGER_GET( &pMemberTD, pCompTD->ppTypeRefs[pos] ); + bool const b = isSimpleReturnType(pMemberTD, true); + TYPELIB_DANGER_RELEASE( pMemberTD ); + if (! b) + return false; + } + return true; + } + return false; +} +} + + +namespace bridges { namespace cpp_uno { namespace shared { +void unoInterfaceProxyDispatch( + uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr, + void * pReturn, void * pArgs[], uno_Any ** ppException ) +{ + // is my surrogate + bridges::cpp_uno::shared::UnoInterfaceProxy * pThis + = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI); + + switch (pMemberDescr->eTypeClass) + { + case typelib_TypeClass_INTERFACE_ATTRIBUTE: + { + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast< + typelib_InterfaceAttributeTypeDescription const * >( + pMemberDescr))); + if (pReturn) + { + // dependent dispatch + cpp_call( + pThis, aVtableSlot, + ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef, + 0, 0, // no params + pReturn, pArgs, ppException ); + } + else + { + // is SET + typelib_MethodParameter aParam; + aParam.pTypeRef = + ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef; + aParam.bIn = sal_True; + aParam.bOut = sal_False; + + typelib_TypeDescriptionReference * pReturnTypeRef = 0; + OUString aVoidName("void"); + typelib_typedescriptionreference_new( + &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData ); + + // dependent dispatch + aVtableSlot.index += 1; // get, then set method + cpp_call( + pThis, aVtableSlot, + pReturnTypeRef, + 1, &aParam, + pReturn, pArgs, ppException ); + + typelib_typedescriptionreference_release( pReturnTypeRef ); + } + + break; + } + case typelib_TypeClass_INTERFACE_METHOD: + { + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast< + typelib_InterfaceMethodTypeDescription const * >( + pMemberDescr))); + switch (aVtableSlot.index) + { + // standard calls + case 1: // acquire uno interface + (*pUnoI->acquire)( pUnoI ); + *ppException = 0; + break; + case 2: // release uno interface + (*pUnoI->release)( pUnoI ); + *ppException = 0; + break; + case 0: // queryInterface() opt + { + typelib_TypeDescription * pTD = 0; + TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() ); + if (pTD) + { + uno_Interface * pInterface = 0; + (*pThis->pBridge->getUnoEnv()->getRegisteredInterface)( + pThis->pBridge->getUnoEnv(), + (void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD ); + + if (pInterface) + { + ::uno_any_construct( + reinterpret_cast< uno_Any * >( pReturn ), + &pInterface, pTD, 0 ); + (*pInterface->release)( pInterface ); + TYPELIB_DANGER_RELEASE( pTD ); + *ppException = 0; + break; + } + TYPELIB_DANGER_RELEASE( pTD ); + } + } // else perform queryInterface() + SAL_FALLTHROUGH; + default: + // dependent dispatch + cpp_call( + pThis, aVtableSlot, + ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef, + ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams, + ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams, + pReturn, pArgs, ppException ); + } + break; + } + default: + { + ::com::sun::star::uno::RuntimeException aExc( + "illegal member type description!", + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() ); + + Type const & rExcType = cppu::UnoType<decltype(aExc)>::get(); + // binary identical null reference + ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 ); + } + } +} + +} } } + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |