From ed5640d8b587fbcfed7dd7967f3de04b37a76f26 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:06:44 +0200 Subject: Adding upstream version 4:7.4.7. Signed-off-by: Daniel Baumann --- bridges/source/cpp_uno/gcc3_linux_arm/armhelper.S | 70 ++ bridges/source/cpp_uno/gcc3_linux_arm/call.hxx | 28 + bridges/source/cpp_uno/gcc3_linux_arm/cpp2uno.cxx | 586 +++++++++++++++++ bridges/source/cpp_uno/gcc3_linux_arm/except.cxx | 327 ++++++++++ bridges/source/cpp_uno/gcc3_linux_arm/share.hxx | 159 +++++ bridges/source/cpp_uno/gcc3_linux_arm/uno2cpp.cxx | 758 ++++++++++++++++++++++ 6 files changed, 1928 insertions(+) create mode 100644 bridges/source/cpp_uno/gcc3_linux_arm/armhelper.S create mode 100644 bridges/source/cpp_uno/gcc3_linux_arm/call.hxx create mode 100644 bridges/source/cpp_uno/gcc3_linux_arm/cpp2uno.cxx create mode 100644 bridges/source/cpp_uno/gcc3_linux_arm/except.cxx create mode 100644 bridges/source/cpp_uno/gcc3_linux_arm/share.hxx create mode 100644 bridges/source/cpp_uno/gcc3_linux_arm/uno2cpp.cxx (limited to 'bridges/source/cpp_uno/gcc3_linux_arm') diff --git a/bridges/source/cpp_uno/gcc3_linux_arm/armhelper.S b/bridges/source/cpp_uno/gcc3_linux_arm/armhelper.S new file mode 100644 index 000000000..4eff3ff0a --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_arm/armhelper.S @@ -0,0 +1,70 @@ +@ +@ 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 . +@ + +@ ARM support code for OpenOffice C++/UNO bridging +@ +@ Written by Peter Naulls +@ Modified by Caolan McNamara +@ Fixed by Michael Casadevall + +#ifdef __ARM_EABI__ +# define UNWIND +#else +# define UNWIND @ +#endif + +@ If the VFP ABI variant (armhf in Debian/Ubuntu) is used, an additional extra 64 bytes +@ are taken up on the stack (the equivalent of the 8 double precision VFP registers) + +#ifdef __ARM_PCS_VFP +# define PAD 80 +# define DISCARDED 84 +#else +# define PAD 16 +# define DISCARDED 20 +#endif + + .file "armhelper.s" + .text + .align 4 + .global privateSnippetExecutor + .type privateSnippetExecutor, %function +privateSnippetExecutor: + UNWIND .fnstart @ start of unwinder entry + + stmfd sp!, {r0-r3} @ follow other parameters on stack + mov r0, ip @ r0 points to functionoffset/vtable + mov r1, sp @ r1 points to this and params +#ifdef __ARM_PCS_VFP + vpush {d0-d7} @ floating point parameter on stack +#endif + UNWIND .pad #PAD @ throw this data away on exception + @ (see cppuno.cxx:codeSnippet()) + stmfd sp!, {r4,lr} @ save return address + @ (r4 pushed to preserve stack alignment) + UNWIND .save {r4,lr} @ restore these regs on exception + + bl cpp_vtable_call(PLT) + + add sp, sp, #4 @ no need to restore r4 (we didn't touch it) + ldr pc, [sp], #DISCARDED @ return, discarding function arguments + + UNWIND .fnend @ end of unwinder entry + + .size privateSnippetExecutor, . - privateSnippetExecutor + .section .note.GNU-stack,"",%progbits diff --git a/bridges/source/cpp_uno/gcc3_linux_arm/call.hxx b/bridges/source/cpp_uno/gcc3_linux_arm/call.hxx new file mode 100644 index 000000000..dde56f6f5 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_arm/call.hxx @@ -0,0 +1,28 @@ +/* -*- 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 . + */ + +#pragma once + +#include + +#include + +extern "C" sal_Int64 cpp_vtable_call(long* pFunctionAndOffset, void** pCallStack); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_arm/cpp2uno.cxx b/bridges/source/cpp_uno/gcc3_linux_arm/cpp2uno.cxx new file mode 100644 index 000000000..103f2b492 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_arm/cpp2uno.cxx @@ -0,0 +1,586 @@ +/* -*- 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 +#include +#include + +#include +#include +#include +#include + +#include "share.hxx" +#include "call.hxx" + +#include + +#ifdef ANDROID +#include +#endif + +using namespace ::osl; +using namespace ::com::sun::star::uno; + +namespace +{ + + 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: ret, [return ptr], this, params + char * pTopStack = reinterpret_cast(pCallStack + 0); + char * pCppStack = pTopStack; + +#ifdef __ARM_PCS_VFP + int dc = 0; + char * pFloatArgs = reinterpret_cast(pCppStack - 64); +#endif + // return + typelib_TypeDescription * pReturnTypeDescr = nullptr; + if (pReturnTypeRef) + TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); + + void * pUnoReturn = nullptr; + // complex return ptr: if != 0 && != pUnoReturn, reconversion need + void * pCppReturn = nullptr; + + if (pReturnTypeDescr) + { + if (!arm::return_in_hidden_param(pReturnTypeRef)) + pUnoReturn = pRegisterReturn; // direct way for simple types + else // complex return via ptr (pCppReturn) + { + pCppReturn = *reinterpret_cast(pCppStack); + pCppStack += sizeof(void *); + + pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( + pReturnTypeDescr ) + ? alloca( pReturnTypeDescr->nSize ) + : pCppReturn); // direct way + } + } + // pop this + pCppStack += sizeof( void* ); + + // stack space + static_assert(sizeof(void *) == sizeof(sal_Int32), + "### unexpected size!"); + // parameters + void ** pUnoArgs = static_cast(alloca( 4 * sizeof(void *) * nParams )); + void ** pCppArgs = pUnoArgs + nParams; + // indices of values this have to be converted (interface conversion + // cpp<=>uno) + sal_Int32 * pTempIndices = reinterpret_cast(pUnoArgs + (2 * nParams)); + // type descriptions for reconversions + typelib_TypeDescription ** ppTempParamTypeDescr = + reinterpret_cast(pUnoArgs + (3 * nParams)); + + sal_Int32 nTempIndices = 0; + + for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) + { + const typelib_MethodParameter & rParam = pParams[nPos]; + typelib_TypeDescription * pParamTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); + + if (!rParam.bOut && + bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) + { +#ifdef __ARM_EABI__ + switch (pParamTypeDescr->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: +#ifndef __ARM_PCS_VFP + case typelib_TypeClass_DOUBLE: +#endif + if ((pCppStack - pTopStack) % 8) pCppStack+=sizeof(sal_Int32); //align to 8 + break; + default: + break; + } +#endif + +// For armhf we get the floating point arguments from a different area of the stack +#ifdef __ARM_PCS_VFP + if (pParamTypeDescr->eTypeClass == typelib_TypeClass_FLOAT) + { + pCppArgs[nPos] = pUnoArgs[nPos] = pFloatArgs; + pFloatArgs += sizeof(float); + } else + if (pParamTypeDescr->eTypeClass == typelib_TypeClass_DOUBLE) + { + if ((pFloatArgs - pTopStack) % 8) pFloatArgs+=sizeof(float); //align to 8 + pCppArgs[nPos] = pUnoArgs[nPos] = pFloatArgs; + pFloatArgs += sizeof(double); + if (++dc == arm::MAX_FPR_REGS) { + if (pCppStack - pTopStack < 16) + pCppStack = pTopStack + 16; + pFloatArgs = pCppStack; + } + } else +#endif + pCppArgs[nPos] = pUnoArgs[nPos] = pCppStack; + + switch (pParamTypeDescr->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: +#ifndef __ARM_PCS_VFP + case typelib_TypeClass_DOUBLE: +#endif + pCppStack += sizeof(sal_Int32); // extra long + break; + default: + break; + } + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + else // ptr to complex value | ref + { + pCppArgs[nPos] = *reinterpret_cast(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 ), + *reinterpret_cast(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] = *reinterpret_cast(pCppStack); + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + } +#ifdef __ARM_PCS_VFP + // use the stack for output parameters or non floating point values + if (rParam.bOut || + ((pParamTypeDescr->eTypeClass != typelib_TypeClass_DOUBLE) + && (pParamTypeDescr->eTypeClass != typelib_TypeClass_FLOAT)) + ) +#endif + 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], nullptr ); + 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, nullptr ); + + 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, nullptr ); + } + // complex return ptr is set to eax + *reinterpret_cast(pRegisterReturn) = pCppReturn; + } + if (pReturnTypeDescr) + { + typelib_TypeClass eRet = pReturnTypeDescr->eTypeClass; + TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); + return eRet; + } + else + return typelib_TypeClass_VOID; + } + } + + + 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: [ret *], this, params + // _this_ ptr is patched cppu_XInterfaceProxy object + void *pThis; + if( nFunctionIndex & 0x80000000 ) + { + nFunctionIndex &= 0x7fffffff; + pThis = pCallStack[1]; + } + else + { + pThis = pCallStack[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(); + + 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)), + reinterpret_cast(pCppI)); + } + + // determine called method + assert(nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex); + 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(), + reinterpret_cast(aMemberDescr.get())->pAttributeTypeRef, + 0, nullptr, // no params + pCallStack, pRegisterReturn ); + } + else + { + // is SET method + typelib_MethodParameter aParam; + aParam.pTypeRef = + reinterpret_cast(aMemberDescr.get())->pAttributeTypeRef; + aParam.bIn = true; + aParam.bOut = false; + + eRet = cpp2uno_call( + pCppI, aMemberDescr.get(), + nullptr, // 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 = nullptr; + TYPELIB_DANGER_GET(&pTD, + static_cast(pCallStack[2])->getTypeLibType()); + if (pTD) + { + XInterface * pInterface = nullptr; + (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)( + pCppI->getBridge()->getCppEnv(), + reinterpret_cast(&pInterface), pCppI->getOid().pData, + reinterpret_cast(pTD) ); + + if (pInterface) + { + ::uno_any_construct( + static_cast< uno_Any * >( pCallStack[0] ), + &pInterface, pTD, cpp_acquire ); + pInterface->release(); + TYPELIB_DANGER_RELEASE( pTD ); + *reinterpret_cast(pRegisterReturn) = pCallStack[0]; + eRet = typelib_TypeClass_ANY; + break; + } + TYPELIB_DANGER_RELEASE( pTD ); + } + } [[fallthrough]]; // else perform queryInterface() + default: + eRet = cpp2uno_call( + pCppI, aMemberDescr.get(), + reinterpret_cast(aMemberDescr.get())->pReturnTypeRef, + reinterpret_cast(aMemberDescr.get())->nParams, + reinterpret_cast(aMemberDescr.get())->pParams, + pCallStack, pRegisterReturn ); + } + break; + } + default: + { + throw RuntimeException( "no member description found!", reinterpret_cast(pCppI) ); + } + } + + return eRet; + } +} + +/** + * is called on incoming vtable calls + * (called by asm snippets) + */ + +sal_Int64 cpp_vtable_call( long *pFunctionAndOffset, + void **pCallStack ) +{ + sal_Int64 nRegReturn; + typelib_TypeClass aType = cpp_mediate( pFunctionAndOffset[0], pFunctionAndOffset[1], pCallStack, + &nRegReturn ); + + switch( aType ) + { + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + nRegReturn = static_cast(*reinterpret_cast(&nRegReturn)); + break; + case typelib_TypeClass_CHAR: + case typelib_TypeClass_UNSIGNED_SHORT: + case typelib_TypeClass_SHORT: + nRegReturn = static_cast(*reinterpret_cast(&nRegReturn)); + break; + case typelib_TypeClass_ENUM: + case typelib_TypeClass_UNSIGNED_LONG: + case typelib_TypeClass_LONG: + nRegReturn = static_cast(*reinterpret_cast(&nRegReturn)); + break; + case typelib_TypeClass_VOID: + default: + break; + } + + return nRegReturn; +} + +namespace +{ + const int codeSnippetSize = 20; + + unsigned char *codeSnippet(unsigned char* code, sal_Int32 functionIndex, + sal_Int32 vtableOffset, bool bHasHiddenParam) + { + if (bHasHiddenParam) + functionIndex |= 0x80000000; + + unsigned long * p = reinterpret_cast(code); + + // ARM (not thumb) mode instructions + // mov ip, pc + *p++ = 0xE1A0C00F; + // ldr pc, [pc, #4] + *p++ = 0xE59FF004; + *p++ = static_cast(functionIndex); + *p++ = static_cast(vtableOffset); + *p++ = reinterpret_cast(privateSnippetExecutor); + + 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; +} + +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 = nullptr; + slots[-1].fn = nullptr; + return slots + slotCount; +} + +unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions( + Slot ** slots, unsigned char * code, +#ifdef USE_DOUBLE_MMAP + sal_PtrDiff writetoexecdiff, +#endif + typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset, + sal_Int32 functionCount, sal_Int32 vtableOffset) +{ +#ifndef USE_DOUBLE_MMAP + const sal_PtrDiff writetoexecdiff = 0; +#endif + (*slots) -= functionCount; + Slot * s = *slots; + for (sal_Int32 i = 0; i < type->nMembers; ++i) + { + typelib_TypeDescription * member = nullptr; + TYPELIB_DANGER_GET(&member, type->ppMembers[i]); + assert(member != 0); + switch (member->eTypeClass) + { + case typelib_TypeClass_INTERFACE_ATTRIBUTE: + { + typelib_InterfaceAttributeTypeDescription *pAttrTD = + reinterpret_cast( member ); + + // Getter: + (s++)->fn = code + writetoexecdiff; + code = codeSnippet( + code, functionOffset++, vtableOffset, + arm::return_in_hidden_param( pAttrTD->pAttributeTypeRef )); + + // Setter: + if (!pAttrTD->bReadOnly) + { + (s++)->fn = code + writetoexecdiff; + code = codeSnippet( + code, functionOffset++, vtableOffset, false); + } + break; + } + case typelib_TypeClass_INTERFACE_METHOD: + { + (s++)->fn = code + writetoexecdiff; + + typelib_InterfaceMethodTypeDescription *pMethodTD = + reinterpret_cast< + typelib_InterfaceMethodTypeDescription * >(member); + + code = codeSnippet(code, functionOffset++, vtableOffset, + arm::return_in_hidden_param(pMethodTD->pReturnTypeRef)); + break; + } + default: + assert(false); + break; + } + TYPELIB_DANGER_RELEASE(member); + } + return code; +} + +void bridges::cpp_uno::shared::VtableFactory::flushCode( + unsigned char const *beg, unsigned char const *end) +{ +#ifndef ANDROID + static void (*clear_cache)(unsigned char const*, unsigned char const*) + = reinterpret_cast + (dlsym(RTLD_DEFAULT, "__clear_cache")); + (*clear_cache)(beg, end); +#else + cacheflush((long) beg, (long) end, 0); +#endif +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_arm/except.cxx b/bridges/source/cpp_uno/gcc3_linux_arm/except.cxx new file mode 100644 index 000000000..14bffa75a --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_arm/except.cxx @@ -0,0 +1,327 @@ +/* -*- 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 +#include +#include +#include + +#include +#include +#include +#include +#include +#include "share.hxx" + + +using namespace ::std; +using namespace ::osl; +using namespace ::com::sun::star::uno; +using namespace ::__cxxabiv1; + +extern sal_Int32 * pHack; +extern sal_Int32 nHack; + +namespace CPPU_CURRENT_NAMESPACE +{ + void dummy_can_throw_anything( char const * ) + { + } + + static OUString toUNOname( char const * p ) + { +#if OSL_DEBUG_LEVEL > 1 + char const * start = p; +#endif + + // example: N3com3sun4star4lang24IllegalArgumentExceptionE + + OUStringBuffer buf( 64 ); + assert( 'N' == *p ); + ++p; // skip N + + while ('E' != *p) + { + // read chars count + long n = *p++ - '0'; + while ('0' <= *p && '9' >= *p) + { + n *= 10; + n += (*p++ - '0'); + } + buf.appendAscii( p, n ); + p += n; + if ('E' != *p) + buf.append( '.' ); + } + +#if OSL_DEBUG_LEVEL > 1 + OUString ret( buf.makeStringAndClear() ); + OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) ); + fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() ); + return ret; +#else + return buf.makeStringAndClear(); +#endif + } + +namespace { + class RTTI + { + typedef std::unordered_map< OUString, type_info * > t_rtti_map; + + Mutex m_mutex; + t_rtti_map m_rttis; + t_rtti_map m_generatedRttis; + +#ifndef ANDROID + void * m_hApp; +#endif + + public: + RTTI(); + ~RTTI(); + + type_info * getRTTI(typelib_CompoundTypeDescription *); + }; +} + + RTTI::RTTI() +#ifndef ANDROID + : m_hApp( dlopen( nullptr, RTLD_LAZY ) ) +#endif + { + } + + RTTI::~RTTI() + { +#ifndef ANDROID + dlclose( m_hApp ); +#endif + } + + + type_info * RTTI::getRTTI( typelib_CompoundTypeDescription *pTypeDescr ) + { + type_info * rtti; + + OUString const & unoName = *reinterpret_cast(&pTypeDescr->aBase.pTypeName); + + MutexGuard guard( m_mutex ); + t_rtti_map::const_iterator iFind( m_rttis.find( unoName ) ); + if (iFind == m_rttis.end()) + { + // RTTI symbol + OStringBuffer buf( 64 ); + buf.append( "_ZTIN" ); + sal_Int32 index = 0; + do + { + OUString token( unoName.getToken( 0, '.', index ) ); + buf.append( token.getLength() ); + OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) ); + buf.append( c_token ); + } + while (index >= 0); + buf.append( 'E' ); + + OString symName( buf.makeStringAndClear() ); +#ifndef ANDROID + rtti = static_cast(dlsym( m_hApp, symName.getStr() )); +#else + rtti = (type_info *)dlsym( RTLD_DEFAULT, symName.getStr() ); +#endif + + if (rtti) + { + pair< t_rtti_map::iterator, bool > insertion( + m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); + (void) insertion; + assert(insertion.second && "### inserting new rtti failed?!"); + } + else + { + // try to lookup the symbol in the generated rtti map + t_rtti_map::const_iterator iFind2( m_generatedRttis.find( unoName ) ); + + if (iFind2 == m_generatedRttis.end()) + { + // we must generate it ! + // symbol and rtti-name is nearly identical, + // the symbol is prefixed with _ZTI + +#ifdef ANDROID + // This code is supposed to be used only used for + // inter-process UNO, says sberg. Thus it should + // be unnecessary and never reached for + // Android. But see above... + + // assert(iFind2 != m_generatedRttis.end()); + // return NULL; +#endif + char const * rttiName = symName.getStr() +4; +#if OSL_DEBUG_LEVEL > 1 + fprintf( stderr,"generated rtti for %s\n", rttiName ); +#endif + if (pTypeDescr->pBaseTypeDescription) + { + // ensure availability of base + type_info * base_rtti = getRTTI( pTypeDescr->pBaseTypeDescription ); + rtti = new __si_class_type_info( + strdup( rttiName ), static_cast<__class_type_info *>(base_rtti) ); + } + else + { + // this class has no base class + rtti = new __class_type_info( strdup( rttiName ) ); + } + + pair< t_rtti_map::iterator, bool > insertion( + m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); + (void) insertion; + assert(insertion.second && "### inserting new generated rtti failed?!"); + } + else // taking already generated rtti + { + rtti = iFind2->second; + } + } + } + else + { + rtti = iFind->second; + } + + return rtti; + } + + + static void deleteException( void * pExc ) + { + __cxa_exception const * header = static_cast<__cxa_exception const *>(pExc) - 1; + typelib_TypeDescription * pTD = nullptr; + OUString unoName( toUNOname( header->exceptionType->name() ) ); + ::typelib_typedescription_getByName( &pTD, unoName.pData ); + assert(pTD && "### unknown exception type! leaving out destruction => leaking!!!"); + if (pTD) + { + ::uno_destructData( pExc, pTD, cpp_release ); + ::typelib_typedescription_release( pTD ); + } + } + + void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp ) + { +#if OSL_DEBUG_LEVEL > 1 + OString cstr( + OUStringToOString( + OUString::unacquired( &pUnoExc->pType->pTypeName ), + RTL_TEXTENCODING_ASCII_US ) ); + fprintf( stderr, "> uno exception occurred: %s\n", cstr.getStr() ); +#endif + void * pCppExc; + type_info * rtti; + + { + // construct cpp exception object + typelib_TypeDescription * pTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType ); + assert(pTypeDescr); + if (! pTypeDescr) + { + throw RuntimeException( + "cannot get typedescription for type " + + OUString::unacquired( &pUnoExc->pType->pTypeName ) ); + } + + pCppExc = __cxa_allocate_exception( pTypeDescr->nSize ); + ::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp ); + + // destruct uno exception + ::uno_any_destruct( pUnoExc, nullptr ); + // avoiding locked counts + static RTTI rtti_data; + rtti = rtti_data.getRTTI(reinterpret_cast(pTypeDescr)); + TYPELIB_DANGER_RELEASE( pTypeDescr ); + assert(rtti && "### no rtti for throwing exception!"); + if (! rtti) + { + throw RuntimeException( + "no rtti for type " + + OUString::unacquired( &pUnoExc->pType->pTypeName ) ); + } + } + + __cxa_throw( pCppExc, rtti, deleteException ); + } + +#ifdef __ARM_EABI__ + static void* getAdjustedPtr(__cxa_exception* header) + { + return reinterpret_cast(header->unwindHeader.barrier_cache.bitpattern[0]); + } +#else + static void* getAdjustedPtr(__cxa_exception* header) + { + return header->adjustedPtr; + } +#endif + + void fillUnoException(uno_Any * pUnoExc, uno_Mapping * pCpp2Uno) + { + __cxa_exception * header = __cxa_get_globals()->caughtExceptions; + if (! header) + { + RuntimeException aRE( "no exception header!" ); + Type const & rType = cppu::UnoType::get(); + uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); + SAL_WARN("bridges", aRE.Message); + return; + } + + std::type_info *exceptionType = __cxa_current_exception_type(); + + typelib_TypeDescription * pExcTypeDescr = nullptr; + OUString unoName( toUNOname( exceptionType->name() ) ); +#if OSL_DEBUG_LEVEL > 1 + OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) ); + fprintf( stderr, "> c++ exception occurred: %s\n", cstr_unoName.getStr() ); +#endif + typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData ); + if (nullptr == pExcTypeDescr) + { + RuntimeException aRE( "exception type not found: " + unoName ); + Type const & rType = cppu::UnoType::get(); + uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); + SAL_WARN("bridges", aRE.Message); + } + else + { + // construct uno exception any + uno_any_constructAndConvert( pUnoExc, getAdjustedPtr(header), pExcTypeDescr, pCpp2Uno ); + typelib_typedescription_release( pExcTypeDescr ); + } + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_arm/share.hxx b/bridges/source/cpp_uno/gcc3_linux_arm/share.hxx new file mode 100644 index 000000000..040ce60b9 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_arm/share.hxx @@ -0,0 +1,159 @@ +/* -*- 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 . + */ +#pragma once +#include + +#include +#include +#include +#include + +#include +#ifndef _GLIBCXX_CDTOR_CALLABI // new in GCC 4.7 cxxabi.h +#define _GLIBCXX_CDTOR_CALLABI +#endif + +#include +#include + +#if !HAVE_CXXABI_H_CLASS_TYPE_INFO +// , +// libstdc++-v3/libsupc++/cxxabi.h: +namespace __cxxabiv1 { +class __class_type_info: public std::type_info { +public: + explicit __class_type_info(char const * n): type_info(n) {} + ~__class_type_info() override; +}; +} +#endif + +#if !HAVE_CXXABI_H_SI_CLASS_TYPE_INFO +// , +// libstdc++-v3/libsupc++/cxxabi.h: +namespace __cxxabiv1 { +class __si_class_type_info: public __class_type_info { +public: + __class_type_info const * __base_type; + explicit __si_class_type_info( + char const * n, __class_type_info const *base): + __class_type_info(n), __base_type(base) {} + ~__si_class_type_info() override; +}; +} +#endif + +#if !HAVE_CXXABI_H_CXA_EXCEPTION +namespace __cxxabiv1 { + struct __cxa_exception + { +#if defined _LIBCPPABI_VERSION // detect libc++abi +#if defined __LP64__ || defined __ARM_EABI__ + // Quoting android-ndk-r18b/sources/cxx-stl/llvm-libc++abi/src/cxa_exception.hpp: "This is a + // new field to support C++ 0x exception_ptr. For binary compatibility it is at the start of + // this struct which is prepended to the object thrown in __cxa_allocate_exception." + std::size_t referenceCount; +#endif +#endif + + std::type_info *exceptionType; + void (*exceptionDestructor)(void *); + + void (*unexpectedHandler)(); // std::unexpected_handler dropped from C++17 + std::terminate_handler terminateHandler; + + __cxa_exception *nextException; + + int handlerCount; +#ifdef __ARM_EABI__ + __cxa_exception *nextPropagatingException; + int propagationCount; +#else + int handlerSwitchValue; + const unsigned char *actionRecord; + const unsigned char *languageSpecificData; + void *catchTemp; + void *adjustedPtr; +#endif + _Unwind_Exception unwindHeader; + }; + +} +#endif + +namespace CPPU_CURRENT_NAMESPACE +{ + + void dummy_can_throw_anything( char const * ); + + // -- following decl from libstdc++-v3/libsupc++/unwind-cxx.h and unwind.h + +#if !HAVE_CXXABI_H_CXA_ALLOCATE_EXCEPTION + extern "C" void *__cxa_allocate_exception( + std::size_t thrown_size ) throw(); +#endif +#if !HAVE_CXXABI_H_CXA_THROW + extern "C" void __cxa_throw ( + void *thrown_exception, std::type_info *tinfo, + void (*dest) (void *) ) __attribute__((noreturn)); +#endif + +} + +#if !HAVE_CXXABI_H_CXA_EH_GLOBALS +namespace __cxxabiv1 { + struct __cxa_eh_globals + { + __cxa_exception *caughtExceptions; + unsigned int uncaughtExceptions; +#ifdef __ARM_EABI__ + __cxa_exception *propagatingExceptions; +#endif + }; +} +#endif + +#if !HAVE_CXXABI_H_CXA_GET_GLOBALS +namespace __cxxabiv1 { + extern "C" __cxa_eh_globals * __cxa_get_globals() throw(); +} +#endif + +#if !HAVE_CXXABI_H_CXA_CURRENT_EXCEPTION_TYPE +namespace __cxxabiv1 { + extern "C" std::type_info *__cxa_current_exception_type() throw(); +} +#endif + +namespace CPPU_CURRENT_NAMESPACE +{ + void raiseException( + uno_Any * pUnoExc, uno_Mapping * pUno2Cpp ); + void fillUnoException(uno_Any *, uno_Mapping * pCpp2Uno); +} + +extern "C" void privateSnippetExecutor(); + +namespace arm +{ + enum armlimits { MAX_GPR_REGS = 4, MAX_FPR_REGS = 8 }; + bool return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_arm/uno2cpp.cxx b/bridges/source/cpp_uno/gcc3_linux_arm/uno2cpp.cxx new file mode 100644 index 000000000..001384e00 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_arm/uno2cpp.cxx @@ -0,0 +1,758 @@ +/* -*- 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 +#include +#include + +#include +#include +#include +#include + +#include "share.hxx" + +#include +#include +#include +#include + +/* + * Based on http://gcc.gnu.org/PR41443 + * References to __SOFTFP__ are incorrect for EABI; the __SOFTFP__ code + * should be used for *soft-float ABI* whether or not VFP is enabled, + * and __SOFTFP__ does specifically mean soft-float not soft-float ABI. + * + * Changing the conditionals to __SOFTFP__ || __ARM_EABI__ then + * -mfloat-abi=softfp should work. -mfloat-abi=hard won't; that would + * need both a new macro to identify the hard-VFP ABI. + */ +#if !defined(__ARM_EABI__) && !defined(__SOFTFP__) +#error Not Implemented + +/* + some possibly handy code to detect that we have VFP registers + */ + +#include +#include +#include +#include +#include + +#define HWCAP_ARM_VFP 64 + +int hasVFP() +{ + int fd = open ("/proc/self/auxv", O_RDONLY); + if (fd == -1) + return -1; + + int ret = -1; + + Elf32_auxv_t buf[128]; + ssize_t n; + while ((ret == -1) && ((n = read(fd, buf, sizeof (buf))) > 0)) + { + for (int i = 0; i < 128; ++i) + { + if (buf[i].a_type == AT_HWCAP) + { + ret = (buf[i].a_un.a_val & HWCAP_ARM_VFP) ? true : false; + break; + } + else if (buf[i].a_type == AT_NULL) + { + ret = -2; + break; + } + } + } + + close (fd); + return ret; +} + +#endif + +using namespace ::com::sun::star::uno; + +namespace arm +{ + static bool is_complex_struct(const typelib_TypeDescription * type) + { + const typelib_CompoundTypeDescription * p + = reinterpret_cast< const typelib_CompoundTypeDescription * >(type); + for (sal_Int32 i = 0; i < p->nMembers; ++i) + { + if (p->ppTypeRefs[i]->eTypeClass == typelib_TypeClass_STRUCT || + p->ppTypeRefs[i]->eTypeClass == typelib_TypeClass_EXCEPTION) + { + typelib_TypeDescription * t = nullptr; + TYPELIB_DANGER_GET(&t, p->ppTypeRefs[i]); + bool b = is_complex_struct(t); + TYPELIB_DANGER_RELEASE(t); + if (b) { + return true; + } + } + else if (!bridges::cpp_uno::shared::isSimpleType(p->ppTypeRefs[i]->eTypeClass)) + return true; + } + if (p->pBaseTypeDescription != nullptr) + return is_complex_struct(&p->pBaseTypeDescription->aBase); + return false; + } + +#ifdef __ARM_PCS_VFP + static bool is_float_only_struct(const typelib_TypeDescription * type) + { + const typelib_CompoundTypeDescription * p + = reinterpret_cast< const typelib_CompoundTypeDescription * >(type); + for (sal_Int32 i = 0; i < p->nMembers; ++i) + { + if (p->ppTypeRefs[i]->eTypeClass != typelib_TypeClass_FLOAT && + p->ppTypeRefs[i]->eTypeClass != typelib_TypeClass_DOUBLE) + return false; + } + return true; + } +#endif + bool return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ) + { + if (bridges::cpp_uno::shared::isSimpleType(pTypeRef)) + return false; + else if (pTypeRef->eTypeClass == typelib_TypeClass_STRUCT || pTypeRef->eTypeClass == typelib_TypeClass_EXCEPTION) + { + typelib_TypeDescription * pTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pTypeDescr, pTypeRef ); + + //A Composite Type not larger than 4 bytes is returned in r0 + bool bRet = pTypeDescr->nSize > 4 || is_complex_struct(pTypeDescr); + +#ifdef __ARM_PCS_VFP + // In the VFP ABI, structs with only float/double values that fit in + // 16 bytes are returned in registers + if( pTypeDescr->nSize <= 16 && is_float_only_struct(pTypeDescr)) + bRet = false; +#endif + + TYPELIB_DANGER_RELEASE( pTypeDescr ); + return bRet; + } + return true; + } +} + +static void MapReturn(sal_uInt32 r0, sal_uInt32 r1, typelib_TypeDescriptionReference * pReturnType, sal_uInt32* pRegisterReturn) +{ + switch( pReturnType->eTypeClass ) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + pRegisterReturn[1] = r1; + [[fallthrough]]; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + case typelib_TypeClass_ENUM: + case typelib_TypeClass_CHAR: + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + pRegisterReturn[0] = r0; + break; + case typelib_TypeClass_FLOAT: +#if !defined(__ARM_PCS_VFP) && (defined(__ARM_EABI__) || defined(__SOFTFP__)) + pRegisterReturn[0] = r0; +#else +#if defined __clang__ +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wuninitialized" +#endif + register float fret asm("s0"); + *reinterpret_cast(pRegisterReturn) = fret; +#if defined __clang__ +#pragma clang diagnostic pop +#endif +#endif + break; + case typelib_TypeClass_DOUBLE: +#if !defined(__ARM_PCS_VFP) && (defined(__ARM_EABI__) || defined(__SOFTFP__)) + pRegisterReturn[1] = r1; + pRegisterReturn[0] = r0; +#else +#if defined __clang__ +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wuninitialized" +#endif + register double dret asm("d0"); + *reinterpret_cast(pRegisterReturn) = dret; +#if defined __clang__ +#pragma clang diagnostic pop +#endif +#endif + break; + case typelib_TypeClass_STRUCT: + case typelib_TypeClass_EXCEPTION: + { + if (!arm::return_in_hidden_param(pReturnType)) + pRegisterReturn[0] = r0; + break; + } + default: + break; + } +} + +namespace +{ + +void callVirtualMethod( + void * pThis, + sal_Int32 nVtableIndex, + void * pRegisterReturn, + typelib_TypeDescriptionReference * pReturnType, + sal_uInt32 *pStack, + sal_uInt32 nStack, + sal_uInt32 *pGPR, + sal_uInt32 nGPR, + double *pFPR) __attribute__((noinline)); + +void callVirtualMethod( + void * pThis, + sal_Int32 nVtableIndex, + void * pRegisterReturn, + typelib_TypeDescriptionReference * pReturnType, + sal_uInt32 *pStack, + sal_uInt32 nStack, + sal_uInt32 *pGPR, + sal_uInt32 nGPR, + double *pFPR) +{ + // never called + if (! pThis) + CPPU_CURRENT_NAMESPACE::dummy_can_throw_anything("xxx"); // address something + + if ( nStack ) + { + // 8-bytes aligned + sal_uInt32 nStackBytes = ( ( nStack + 1 ) >> 1 ) * 8; + sal_uInt32 *stack = static_cast(__builtin_alloca( nStackBytes )); + memcpy( stack, pStack, nStackBytes ); + } + + // Should not happen, but... + if ( nGPR > arm::MAX_GPR_REGS ) + nGPR = arm::MAX_GPR_REGS; + + sal_uInt32 pMethod = *static_cast(pThis); + pMethod += 4 * nVtableIndex; + pMethod = *reinterpret_cast(pMethod); + + //Return registers + sal_uInt32 r0; + sal_uInt32 r1; + + __asm__ __volatile__ ( + //Fill in general purpose register arguments + "ldr r4, %[pgpr]\n\t" + "ldmia r4, {r0-r3}\n\t" + +#ifdef __ARM_PCS_VFP + //Fill in VFP register arguments as double precision values + "ldr r4, %[pfpr]\n\t" + "vldmia r4, {d0-d7}\n\t" +#endif + //Make the call + "ldr r5, %[pmethod]\n\t" +#ifndef __ARM_ARCH_4T__ + "blx r5\n\t" +#else + "mov lr, pc ; bx r5\n\t" +#endif + + //Fill in return values + "mov %[r0], r0\n\t" + "mov %[r1], r1\n\t" + : [r0]"=r" (r0), [r1]"=r" (r1) + : [pmethod]"m" (pMethod), [pgpr]"m" (pGPR), [pfpr]"m" (pFPR) + : "r0", "r1", "r2", "r3", "r4", "r5"); + + MapReturn(r0, r1, pReturnType, static_cast(pRegisterReturn)); +} +} + +#define INSERT_INT32( pSV, nr, pGPR, pDS ) \ + if ( nr < arm::MAX_GPR_REGS ) \ + pGPR[nr++] = *reinterpret_cast( pSV ); \ + else \ + *pDS++ = *reinterpret_cast( pSV ); + +#ifdef __ARM_EABI__ +#define INSERT_INT64( pSV, nr, pGPR, pDS, pStart ) \ + if ( (nr < arm::MAX_GPR_REGS) && (nr % 2) ) \ + { \ + ++nr; \ + } \ + if ( nr < arm::MAX_GPR_REGS ) \ + { \ + pGPR[nr++] = *static_cast( pSV ); \ + pGPR[nr++] = *(static_cast( pSV ) + 1); \ + } \ + else \ + { \ + if ( (pDS - pStart) % 2) \ + { \ + ++pDS; \ + } \ + *pDS++ = static_cast( pSV )[0]; \ + *pDS++ = static_cast( pSV )[1]; \ + } +#else +#define INSERT_INT64( pSV, nr, pGPR, pDS, pStart ) \ + INSERT_INT32( pSV, nr, pGPR, pDS ) \ + INSERT_INT32( ((sal_uInt32*)pSV)+1, nr, pGPR, pDS ) +#endif + +#ifdef __ARM_PCS_VFP +// Since single and double arguments share the same register bank the filling of the +// registers is not always linear. Single values go to the first available single register, +// while doubles need to have an 8 byte alignment, so only go into double registers starting +// at every other single register. For ex a float, double, float sequence will fill registers +// s0, d1, and s1, actually corresponding to the linear order s0,s1, d1. +// +// These use the single/double register array and counters and ignore the pGPR argument +// nSR and nDR are the number of single and double precision registers that are no longer +// available +#define INSERT_FLOAT( pSV, nr, pGPR, pDS ) \ + if (nSR % 2 == 0) {\ + nSR = 2*nDR; \ + }\ + if ( nSR < arm::MAX_FPR_REGS*2 ) {\ + pSPR[nSR++] = *static_cast( pSV ); \ + if ((nSR % 2 == 1) && (nSR > 2*nDR)) {\ + nDR++; \ + }\ + }\ + else \ + {\ + *pDS++ = *static_cast( pSV );\ + } +#define INSERT_DOUBLE( pSV, nr, pGPR, pDS, pStart ) \ + if ( nDR < arm::MAX_FPR_REGS ) { \ + pFPR[nDR++] = *static_cast( pSV ); \ + }\ + else\ + {\ + if ( (pDS - pStart) % 2) \ + { \ + ++pDS; \ + } \ + *reinterpret_cast(pDS) = *static_cast( pSV );\ + pDS += 2;\ + } +#else +#define INSERT_FLOAT( pSV, nr, pFPR, pDS ) \ + INSERT_INT32( pSV, nr, pGPR, pDS ) + +#define INSERT_DOUBLE( pSV, nr, pFPR, pDS, pStart ) \ + INSERT_INT64( pSV, nr, pGPR, pDS, pStart ) +#endif + +#define INSERT_INT16( pSV, nr, pGPR, pDS ) \ + if ( nr < arm::MAX_GPR_REGS ) \ + pGPR[nr++] = *static_cast( pSV ); \ + else \ + *pDS++ = *static_cast( pSV ); + +#define INSERT_INT8( pSV, nr, pGPR, pDS ) \ + if ( nr < arm::MAX_GPR_REGS ) \ + pGPR[nr++] = *static_cast( pSV ); \ + else \ + *pDS++ = *static_cast( pSV ); + +namespace { + +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 ... + sal_uInt32 * pStack = static_cast(__builtin_alloca( + sizeof(sal_Int32) + ((nParams+2) * sizeof(sal_Int64)) )); + sal_uInt32 * pStackStart = pStack; + + sal_uInt32 pGPR[arm::MAX_GPR_REGS]; + sal_uInt32 nGPR = 0; + + // storage and counters for single and double precision VFP registers + double pFPR[arm::MAX_FPR_REGS]; +#ifdef __ARM_PCS_VFP + sal_uInt32 nDR = 0; + float *pSPR = reinterpret_cast< float *>(&pFPR); + sal_uInt32 nSR = 0; +#endif + + // return + typelib_TypeDescription * pReturnTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); + assert(pReturnTypeDescr); + + void * pCppReturn = nullptr; // if != 0 && != pUnoReturn, needs reconversion + + if (pReturnTypeDescr) + { + bool bSimpleReturn = !arm::return_in_hidden_param( pReturnTypeRef ); + + if (bSimpleReturn) + pCppReturn = pUnoReturn; // direct way for simple types + else + { + // complex return via ptr + pCppReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) + ? __builtin_alloca( pReturnTypeDescr->nSize ) + : pUnoReturn); // direct way + + INSERT_INT32( &pCppReturn, nGPR, pGPR, pStack ); + } + } + // push this + void * pAdjustedThisPtr = reinterpret_cast< void ** >(pThis->getCppI()) + + aVtableSlot.offset; + INSERT_INT32( &pAdjustedThisPtr, nGPR, pGPR, pStack ); + + // stack space + static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!"); + // args + void ** pCppArgs = static_cast(alloca( 3 * sizeof(void *) * nParams )); + // indices of values this have to be converted (interface conversion cpp<=>uno) + sal_Int32 * pTempIndices = reinterpret_cast(pCppArgs + nParams); + // type descriptions for reconversions + typelib_TypeDescription ** ppTempParamTypeDescr = reinterpret_cast(pCppArgs + (2 * nParams)); + + sal_Int32 nTempIndices = 0; + + for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) + { + const typelib_MethodParameter & rParam = pParams[nPos]; + typelib_TypeDescription * pParamTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); + + if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) + { +// uno_copyAndConvertData( pCppArgs[nPos] = pStack, pUnoArgs[nPos], + uno_copyAndConvertData( pCppArgs[nPos] = alloca(8), pUnoArgs[nPos], + pParamTypeDescr, pThis->getBridge()->getUno2Cpp() ); + + switch (pParamTypeDescr->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: +#if OSL_DEBUG_LEVEL > 2 + fprintf(stderr, "hyper is %p\n", pCppArgs[nPos]); +#endif + INSERT_INT64( pCppArgs[nPos], nGPR, pGPR, pStack, pStackStart ); + break; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + case typelib_TypeClass_ENUM: +#if OSL_DEBUG_LEVEL > 2 + fprintf(stderr, "long is %p\n", pCppArgs[nPos]); +#endif + INSERT_INT32( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_SHORT: + case typelib_TypeClass_CHAR: + case typelib_TypeClass_UNSIGNED_SHORT: + INSERT_INT16( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + INSERT_INT8( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_FLOAT: + INSERT_FLOAT( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_DOUBLE: + INSERT_DOUBLE( pCppArgs[nPos], nGPR, pGPR, pStack, pStackStart ); + break; + 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( + 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( + 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 + { + pCppArgs[nPos] = pUnoArgs[nPos]; + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + INSERT_INT32( &(pCppArgs[nPos]), nGPR, pGPR, pStack ); + } + } + + try + { + try { + callVirtualMethod( + pAdjustedThisPtr, aVtableSlot.index, + pCppReturn, pReturnTypeRef, + pStackStart, + (pStack - pStackStart), + pGPR, nGPR, + pFPR); + } catch (css::uno::Exception &) { + throw; + } catch (std::exception & e) { + throw css::uno::RuntimeException( + "C++ code threw " + o3tl::runtimeToOUString(typeid(e).name()) + ": " + + o3tl::runtimeToOUString(e.what())); + } catch (...) { + throw css::uno::RuntimeException("C++ code threw unknown exception"); + } + + // NO exception occurred... + *ppUnoExc = nullptr; + + // 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, nullptr ); // 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 (...) + { + // fill uno exception + CPPU_CURRENT_NAMESPACE::fillUnoException(*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 bridges::cpp_uno::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); +#if OSL_DEBUG_LEVEL > 0 + typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr; +#endif + + switch (pMemberDescr->eTypeClass) + { + case typelib_TypeClass_INTERFACE_ATTRIBUTE: + { +#if OSL_DEBUG_LEVEL > 0 + // determine vtable call index + sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition; + assert(nMemberPos < pTypeDescr->nAllMembers); +#endif + + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast + (pMemberDescr))); + + if (pReturn) + { + // dependent dispatch + cpp_call( + pThis, aVtableSlot, + reinterpret_cast(pMemberDescr)->pAttributeTypeRef, + 0, nullptr, // no params + pReturn, pArgs, ppException ); + } + else + { + // is SET + typelib_MethodParameter aParam; + aParam.pTypeRef = + reinterpret_cast(pMemberDescr)->pAttributeTypeRef; + aParam.bIn = true; + aParam.bOut = false; + + typelib_TypeDescriptionReference * pReturnTypeRef = nullptr; + OUString aVoidName("void"); + typelib_typedescriptionreference_new( + &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData ); + + // dependent dispatch + aVtableSlot.index += 1; + cpp_call( + pThis, aVtableSlot, // get, then set method + pReturnTypeRef, + 1, &aParam, + pReturn, pArgs, ppException ); + + typelib_typedescriptionreference_release( pReturnTypeRef ); + } + + break; + } + case typelib_TypeClass_INTERFACE_METHOD: + { +#if OSL_DEBUG_LEVEL > 0 + // determine vtable call index + sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition; + assert(nMemberPos < pTypeDescr->nAllMembers); +#endif + + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast + (pMemberDescr))); + + switch (aVtableSlot.index) + { + // standard calls + case 1: // acquire uno interface + (*pUnoI->acquire)( pUnoI ); + *ppException = nullptr; + break; + case 2: // release uno interface + (*pUnoI->release)( pUnoI ); + *ppException = nullptr; + break; + case 0: // queryInterface() opt + { + typelib_TypeDescription * pTD = nullptr; + TYPELIB_DANGER_GET( &pTD, static_cast< Type * >( pArgs[0] )->getTypeLibType() ); + if (pTD) + { + uno_Interface * pInterface = nullptr; + (*pThis->getBridge()->getUnoEnv()->getRegisteredInterface)( + pThis->getBridge()->getUnoEnv(), + reinterpret_cast(&pInterface), pThis->oid.pData, reinterpret_cast(pTD) ); + + if (pInterface) + { + ::uno_any_construct( + static_cast< uno_Any * >( pReturn ), + &pInterface, pTD, nullptr ); + (*pInterface->release)( pInterface ); + TYPELIB_DANGER_RELEASE( pTD ); + *ppException = nullptr; + break; + } + TYPELIB_DANGER_RELEASE( pTD ); + } + } [[fallthrough]]; // else perform queryInterface() + default: + // dependent dispatch + cpp_call( + pThis, aVtableSlot, + reinterpret_cast(pMemberDescr)->pReturnTypeRef, + reinterpret_cast(pMemberDescr)->nParams, + reinterpret_cast(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::get(); + // binary identical null reference + ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), nullptr ); + } + } +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -- cgit v1.2.3