| /************************************************************** |
| * |
| * 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 <stdio.h> |
| #include <stdlib.h> |
| #include <hash_map> |
| |
| #include <rtl/alloc.h> |
| #include <osl/mutex.hxx> |
| |
| #include <com/sun/star/uno/genfunc.hxx> |
| #include "com/sun/star/uno/RuntimeException.hpp" |
| #include <uno/data.h> |
| #include <typelib/typedescription.hxx> |
| |
| #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 "abi.hxx" |
| #include "share.hxx" |
| |
| using namespace ::osl; |
| using namespace ::rtl; |
| using namespace ::com::sun::star::uno; |
| |
| //================================================================================================== |
| |
| // Perform the UNO call |
| // |
| // We must convert the paramaters stored in gpreg, fpreg and ovrflw to UNO |
| // arguments and call pThis->getUnoI()->pDispatcher. |
| // |
| // gpreg: [ret *], this, [gpr params] |
| // fpreg: [fpr params] |
| // ovrflw: [gpr or fpr params (properly aligned)] |
| // |
| // [ret *] is present when we are returning a structure bigger than 16 bytes |
| // Simple types are returned in rax, rdx (int), or xmm0, xmm1 (fp). |
| // Similarly structures <= 16 bytes are in rax, rdx, xmm0, xmm1 as necessary. |
| 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, void ** fpreg, void ** ovrflw, |
| sal_uInt64 * pRegisterReturn /* space for register return */ ) |
| { |
| unsigned int nr_gpr = 0; //number of gpr registers used |
| unsigned int nr_fpr = 0; //number of fpr registers used |
| |
| // 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 ( x86_64::return_in_hidden_param( pReturnTypeRef ) ) |
| { |
| pCppReturn = *gpreg++; |
| nr_gpr++; |
| |
| pUnoReturn = ( bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) |
| ? alloca( pReturnTypeDescr->nSize ) |
| : pCppReturn ); // direct way |
| } |
| else |
| pUnoReturn = pRegisterReturn; // direct way for simple types |
| } |
| |
| // pop this |
| gpreg++; |
| nr_gpr++; |
| |
| // stack space |
| // 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]; |
| |
| int nUsedGPR = 0; |
| int nUsedSSE = 0; |
| #if OSL_DEBUG_LEVEL > 0 |
| bool bFitsRegisters = |
| #endif |
| x86_64::examine_argument( rParam.pTypeRef, false, nUsedGPR, nUsedSSE ); |
| if ( !rParam.bOut && bridges::cpp_uno::shared::isSimpleType( rParam.pTypeRef ) ) // value |
| { |
| // Simple types must fit exactly one register on x86_64 |
| OSL_ASSERT( bFitsRegisters && ( ( nUsedSSE == 1 && nUsedGPR == 0 ) || ( nUsedSSE == 0 && nUsedGPR == 1 ) ) ); |
| |
| if ( nUsedSSE == 1 ) |
| { |
| if ( nr_fpr < x86_64::MAX_SSE_REGS ) |
| { |
| pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++; |
| nr_fpr++; |
| } |
| else |
| pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++; |
| } |
| else if ( nUsedGPR == 1 ) |
| { |
| if ( nr_gpr < x86_64::MAX_GPR_REGS ) |
| { |
| pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++; |
| nr_gpr++; |
| } |
| else |
| pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++; |
| } |
| } |
| else // struct <= 16 bytes || ptr to complex value || ref |
| { |
| typelib_TypeDescription * pParamTypeDescr = 0; |
| TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); |
| |
| void *pCppStack; |
| if ( nr_gpr < x86_64::MAX_GPR_REGS ) |
| { |
| pCppArgs[nPos] = pCppStack = *gpreg++; |
| nr_gpr++; |
| } |
| else |
| pCppArgs[nPos] = pCppStack = *ovrflw++; |
| |
| 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; |
| } |
| else if ( bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ) ) // is in/inout |
| { |
| uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ), |
| 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] = 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 ( ; 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::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 ( ; 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, 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; |
| } |
| } |
| |
| |
| //================================================================================================== |
| extern "C" typelib_TypeClass cpp_vtable_call( |
| sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, |
| void ** gpreg, void ** fpreg, void ** ovrflw, |
| sal_uInt64 * pRegisterReturn /* space for register return */ ) |
| { |
| // gpreg: [ret *], this, [other gpr params] |
| // fpreg: [fpr params] |
| // ovrflw: [gpr or fpr params (properly aligned)] |
| void * pThis; |
| if ( nFunctionIndex & 0x80000000 ) |
| { |
| nFunctionIndex &= 0x7fffffff; |
| 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(); |
| |
| OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!\n" ); |
| if ( nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex ) |
| { |
| throw RuntimeException( OUString::createFromAscii("illegal vtable index!"), |
| reinterpret_cast<XInterface *>( pCppI ) ); |
| } |
| |
| // determine called method |
| sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex]; |
| OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!\n" ); |
| |
| TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); |
| |
| typelib_TypeClass eRet; |
| switch ( aMemberDescr.get()->eTypeClass ) |
| { |
| case typelib_TypeClass_INTERFACE_ATTRIBUTE: |
| { |
| typelib_TypeDescriptionReference *pAttrTypeRef = |
| reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( aMemberDescr.get() )->pAttributeTypeRef; |
| |
| if ( pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex ) |
| { |
| // is GET method |
| eRet = cpp2uno_call( pCppI, aMemberDescr.get(), pAttrTypeRef, |
| 0, 0, // no params |
| gpreg, fpreg, ovrflw, pRegisterReturn ); |
| } |
| else |
| { |
| // is SET method |
| typelib_MethodParameter aParam; |
| aParam.pTypeRef = pAttrTypeRef; |
| 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, |
| reinterpret_cast<typelib_InterfaceTypeDescription *>( pTD ) ); |
| |
| if ( pInterface ) |
| { |
| ::uno_any_construct( reinterpret_cast<uno_Any *>( gpreg[0] ), |
| &pInterface, pTD, cpp_acquire ); |
| |
| pInterface->release(); |
| TYPELIB_DANGER_RELEASE( pTD ); |
| |
| reinterpret_cast<void **>( pRegisterReturn )[0] = gpreg[0]; |
| eRet = typelib_TypeClass_ANY; |
| break; |
| } |
| TYPELIB_DANGER_RELEASE( pTD ); |
| } |
| } // else perform queryInterface() |
| default: |
| { |
| typelib_InterfaceMethodTypeDescription *pMethodTD = |
| reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( aMemberDescr.get() ); |
| |
| eRet = cpp2uno_call( pCppI, aMemberDescr.get(), |
| pMethodTD->pReturnTypeRef, |
| pMethodTD->nParams, |
| pMethodTD->pParams, |
| gpreg, fpreg, ovrflw, pRegisterReturn ); |
| } |
| } |
| break; |
| } |
| default: |
| { |
| throw RuntimeException( OUString::createFromAscii("no member description found!"), |
| reinterpret_cast<XInterface *>( pCppI ) ); |
| // is here for dummy |
| eRet = typelib_TypeClass_VOID; |
| } |
| } |
| |
| return eRet; |
| } |
| |
| //================================================================================================== |
| extern "C" void privateSnippetExecutor( ... ); |
| |
| const int codeSnippetSize = 24; |
| |
| // Generate a trampoline that redirects method calls to |
| // privateSnippetExecutor(). |
| // |
| // privateSnippetExecutor() saves all the registers that are used for |
| // parameter passing on x86_64, and calls the cpp_vtable_call(). |
| // When it returns, privateSnippetExecutor() sets the return value. |
| // |
| // Note: The code snippet we build here must not create a stack frame, |
| // otherwise the UNO exceptions stop working thanks to non-existing |
| // unwinding info. |
| unsigned char * codeSnippet( unsigned char * code, |
| sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, |
| bool bHasHiddenParam ) SAL_THROW( () ) |
| { |
| sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex ); |
| |
| if ( bHasHiddenParam ) |
| nOffsetAndIndex |= 0x80000000; |
| |
| // movq $<nOffsetAndIndex>, %r10 |
| *reinterpret_cast<sal_uInt16 *>( code ) = 0xba49; |
| *reinterpret_cast<sal_uInt64 *>( code + 2 ) = nOffsetAndIndex; |
| |
| // movq $<address of the privateSnippetExecutor>, %r11 |
| *reinterpret_cast<sal_uInt16 *>( code + 10 ) = 0xbb49; |
| *reinterpret_cast<sal_uInt64 *>( code + 12 ) = reinterpret_cast<sal_uInt64>( privateSnippetExecutor ); |
| |
| // jmpq *%r11 |
| *reinterpret_cast<sal_uInt32 *>( code + 20 ) = 0x00e3ff49; |
| |
| 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) + 2; |
| } |
| |
| //================================================================================================== |
| sal_Size 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) |
| { |
| 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, sal_PtrDiff writetoexecdiff, |
| typelib_InterfaceTypeDescription const * type, sal_Int32 nFunctionOffset, |
| sal_Int32 functionCount, sal_Int32 nVtableOffset ) |
| { |
| (*slots) -= functionCount; |
| Slot * s = *slots; |
| for ( sal_Int32 nPos = 0; nPos < type->nMembers; ++nPos ) |
| { |
| typelib_TypeDescription * pTD = 0; |
| |
| TYPELIB_DANGER_GET( &pTD, type->ppMembers[ nPos ] ); |
| OSL_ASSERT( pTD ); |
| |
| if ( typelib_TypeClass_INTERFACE_ATTRIBUTE == pTD->eTypeClass ) |
| { |
| typelib_InterfaceAttributeTypeDescription *pAttrTD = |
| reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( pTD ); |
| |
| // get method |
| (s++)->fn = code + writetoexecdiff; |
| code = codeSnippet( code, nFunctionOffset++, nVtableOffset, |
| x86_64::return_in_hidden_param( pAttrTD->pAttributeTypeRef ) ); |
| |
| if ( ! pAttrTD->bReadOnly ) |
| { |
| // set method |
| (s++)->fn = code + writetoexecdiff; |
| code = codeSnippet( code, nFunctionOffset++, nVtableOffset, false ); |
| } |
| } |
| else if ( typelib_TypeClass_INTERFACE_METHOD == pTD->eTypeClass ) |
| { |
| typelib_InterfaceMethodTypeDescription *pMethodTD = |
| reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( pTD ); |
| |
| (s++)->fn = code + writetoexecdiff; |
| code = codeSnippet( code, nFunctionOffset++, nVtableOffset, |
| x86_64::return_in_hidden_param( pMethodTD->pReturnTypeRef ) ); |
| } |
| else |
| OSL_ASSERT( false ); |
| |
| TYPELIB_DANGER_RELEASE( pTD ); |
| } |
| return code; |
| } |
| |
| //================================================================================================== |
| void bridges::cpp_uno::shared::VtableFactory::flushCode( |
| unsigned char const *, unsigned char const * ) |
| { |
| } |