527 lines
18 KiB
C++
527 lines
18 KiB
C++
/* -*- 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 <sal/config.h>
|
|
|
|
#include <typeinfo>
|
|
|
|
#include <com/sun/star/uno/genfunc.hxx>
|
|
#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 "call.hxx"
|
|
#include "share.hxx"
|
|
|
|
using namespace ::com::sun::star::uno;
|
|
|
|
namespace
|
|
{
|
|
|
|
void cpp2uno_call(
|
|
bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
|
|
const typelib_TypeDescription * pMemberTypeDescr,
|
|
typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
|
|
sal_Int32 nParams, typelib_MethodParameter * pParams,
|
|
void ** pCallStack,
|
|
void * pReturnValue )
|
|
{
|
|
// pCallStack: ret, [return ptr], this, params
|
|
char * pCppStack = reinterpret_cast<char *>(pCallStack +1);
|
|
|
|
// return
|
|
typelib_TypeDescription * pReturnTypeDescr = nullptr;
|
|
if (pReturnTypeRef)
|
|
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
|
|
|
|
void * pUnoReturn = nullptr;
|
|
void * pCppReturn = nullptr; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
|
|
|
|
if (pReturnTypeDescr)
|
|
{
|
|
if (x86::isSimpleReturnType( pReturnTypeDescr ))
|
|
{
|
|
pUnoReturn = pReturnValue; // direct way for simple types
|
|
}
|
|
else // complex return via ptr (pCppReturn)
|
|
{
|
|
pCppReturn = *reinterpret_cast<void **>(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<void **>(alloca( 4 * sizeof(void *) * nParams ));
|
|
void ** pCppArgs = pUnoArgs + nParams;
|
|
// indices of values this have to be converted (interface conversion cpp<=>uno)
|
|
sal_Int32 * pTempIndices = reinterpret_cast<sal_Int32 *>(pUnoArgs + (2 * nParams));
|
|
// type descriptions for reconversions
|
|
typelib_TypeDescription ** ppTempParamTypeDescr = reinterpret_cast<typelib_TypeDescription **>(pUnoArgs + (3 * nParams));
|
|
|
|
sal_Int32 nTempIndices = 0;
|
|
|
|
for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
|
|
{
|
|
const typelib_MethodParameter & rParam = pParams[nPos];
|
|
typelib_TypeDescription * pParamTypeDescr = nullptr;
|
|
TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
|
|
|
|
if (!rParam.bOut
|
|
&& bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
|
|
// value
|
|
{
|
|
pCppArgs[nPos] = pCppStack;
|
|
pUnoArgs[nPos] = pCppStack;
|
|
switch (pParamTypeDescr->eTypeClass)
|
|
{
|
|
case typelib_TypeClass_HYPER:
|
|
case typelib_TypeClass_UNSIGNED_HYPER:
|
|
case typelib_TypeClass_DOUBLE:
|
|
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<void **>(pCppStack);
|
|
|
|
if (! rParam.bIn) // is pure out
|
|
{
|
|
// uno out is unconstructed mem!
|
|
pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
|
|
pTempIndices[nTempIndices] = nPos;
|
|
// will be released at reconversion
|
|
ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
|
|
}
|
|
// is in/inout
|
|
else if (bridges::cpp_uno::shared::relatesToInterfaceType(
|
|
pParamTypeDescr ))
|
|
{
|
|
uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
|
|
*reinterpret_cast<void **>(pCppStack), pParamTypeDescr,
|
|
pThis->getBridge()->getCpp2Uno() );
|
|
pTempIndices[nTempIndices] = nPos; // has to be reconverted
|
|
// will be released at reconversion
|
|
ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
|
|
}
|
|
else // direct way
|
|
{
|
|
pUnoArgs[nPos] = *reinterpret_cast<void **>(pCppStack);
|
|
// no longer needed
|
|
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
|
|
}
|
|
}
|
|
pCppStack += sizeof(sal_Int32); // standard parameter length
|
|
}
|
|
|
|
// ExceptionHolder
|
|
uno_Any aUnoExc; // Any will be constructed by callee
|
|
uno_Any * pUnoExc = &aUnoExc;
|
|
|
|
// invoke uno dispatch call
|
|
(*pThis->getUnoI()->pDispatcher)(
|
|
pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
|
|
|
|
// in case an exception occurred...
|
|
if (pUnoExc)
|
|
{
|
|
// destruct temporary in/inout params
|
|
for ( ; nTempIndices--; )
|
|
{
|
|
sal_Int32 nIndex = pTempIndices[nTempIndices];
|
|
|
|
if (pParams[nIndex].bIn) // is in/inout => was constructed
|
|
uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndices], 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
|
|
}
|
|
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
|
|
*static_cast< void ** >(pReturnValue) = pCppReturn;
|
|
}
|
|
if (pReturnTypeDescr)
|
|
{
|
|
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
extern "C" void cpp_vtable_call(
|
|
int nFunctionIndex, int nVtableOffset, void** pCallStack,
|
|
void * pReturnValue )
|
|
{
|
|
static_assert(sizeof(sal_Int32)==sizeof(void *), "### unexpected!");
|
|
|
|
// pCallStack: ret adr, [ret *], this, params
|
|
void * pThis;
|
|
if( nFunctionIndex & 0x80000000 )
|
|
{
|
|
nFunctionIndex &= 0x7fffffff;
|
|
pThis = pCallStack[2];
|
|
}
|
|
else
|
|
{
|
|
pThis = pCallStack[1];
|
|
}
|
|
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)),
|
|
static_cast<XInterface *>(pThis));
|
|
}
|
|
|
|
// determine called method
|
|
sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
|
|
assert(nMemberPos < pTypeDescr->nAllMembers);
|
|
|
|
TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
|
|
|
|
switch (aMemberDescr.get()->eTypeClass)
|
|
{
|
|
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
|
|
{
|
|
if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
|
|
{
|
|
// is GET method
|
|
cpp2uno_call(
|
|
pCppI, aMemberDescr.get(),
|
|
reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>(aMemberDescr.get())->pAttributeTypeRef,
|
|
0, nullptr, // no params
|
|
pCallStack, pReturnValue );
|
|
}
|
|
else
|
|
{
|
|
// is SET method
|
|
typelib_MethodParameter aParam;
|
|
aParam.pTypeRef =
|
|
reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>(aMemberDescr.get())->pAttributeTypeRef;
|
|
aParam.bIn = true;
|
|
aParam.bOut = false;
|
|
|
|
cpp2uno_call(
|
|
pCppI, aMemberDescr.get(),
|
|
nullptr, // indicates void return
|
|
1, &aParam,
|
|
pCallStack, pReturnValue );
|
|
}
|
|
break;
|
|
}
|
|
case typelib_TypeClass_INTERFACE_METHOD:
|
|
{
|
|
// is METHOD
|
|
switch (nFunctionIndex)
|
|
{
|
|
case 1: // acquire()
|
|
pCppI->acquireProxy(); // non virtual call!
|
|
break;
|
|
case 2: // release()
|
|
pCppI->releaseProxy(); // non virtual call!
|
|
break;
|
|
case 0: // queryInterface() opt
|
|
{
|
|
typelib_TypeDescription * pTD = nullptr;
|
|
TYPELIB_DANGER_GET( &pTD, static_cast< Type * >( pCallStack[3] )->getTypeLibType() );
|
|
if (pTD)
|
|
{
|
|
XInterface * pInterface = nullptr;
|
|
(*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
|
|
pCppI->getBridge()->getCppEnv(),
|
|
reinterpret_cast<void **>(&pInterface), pCppI->getOid().pData,
|
|
reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD) );
|
|
|
|
if (pInterface)
|
|
{
|
|
::uno_any_construct(
|
|
static_cast< uno_Any * >( pCallStack[1] ),
|
|
&pInterface, pTD, cpp_acquire );
|
|
pInterface->release();
|
|
TYPELIB_DANGER_RELEASE( pTD );
|
|
*static_cast< void ** >(pReturnValue) = pCallStack[1];
|
|
break;
|
|
}
|
|
TYPELIB_DANGER_RELEASE( pTD );
|
|
}
|
|
[[fallthrough]]; // else perform queryInterface()
|
|
}
|
|
default:
|
|
cpp2uno_call(
|
|
pCppI, aMemberDescr.get(),
|
|
reinterpret_cast<typelib_InterfaceMethodTypeDescription *>(aMemberDescr.get())->pReturnTypeRef,
|
|
reinterpret_cast<typelib_InterfaceMethodTypeDescription *>(aMemberDescr.get())->nParams,
|
|
reinterpret_cast<typelib_InterfaceMethodTypeDescription *>(aMemberDescr.get())->pParams,
|
|
pCallStack, pReturnValue );
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
throw RuntimeException( "no member description found!", static_cast<XInterface *>(pThis) );
|
|
}
|
|
}
|
|
}
|
|
|
|
extern "C" typedef void (*PrivateSnippetExecutor)();
|
|
|
|
int const codeSnippetSize = 16;
|
|
|
|
#if defined (FREEBSD) || defined(NETBSD) || defined(OPENBSD) || defined(MACOSX) || \
|
|
defined(DRAGONFLY)
|
|
namespace
|
|
{
|
|
PrivateSnippetExecutor returnsInRegister(typelib_TypeDescriptionReference * pReturnTypeRef)
|
|
{
|
|
//These archs apparently are returning small structs in registers, while Linux
|
|
//doesn't
|
|
PrivateSnippetExecutor exec=NULL;
|
|
|
|
typelib_TypeDescription * pReturnTypeDescr = 0;
|
|
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
|
|
const bool bSimpleReturnStruct = x86::isSimpleReturnType(pReturnTypeDescr);
|
|
const sal_Int32 nRetSize = pReturnTypeDescr->nSize;
|
|
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
|
|
if (bSimpleReturnStruct)
|
|
{
|
|
exec = privateSnippetExecutorGeneral; // fills eax
|
|
if (nRetSize > 4)
|
|
exec = privateSnippetExecutorHyper; // fills eax/edx
|
|
}
|
|
return exec;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
unsigned char * codeSnippet(
|
|
unsigned char * code, sal_PtrDiff writetoexecdiff, sal_Int32 functionIndex, sal_Int32 vtableOffset,
|
|
typelib_TypeDescriptionReference * pReturnTypeRef)
|
|
{
|
|
PrivateSnippetExecutor exec;
|
|
typelib_TypeClass eReturnClass = pReturnTypeRef ? pReturnTypeRef->eTypeClass : typelib_TypeClass_VOID;
|
|
switch (eReturnClass)
|
|
{
|
|
case typelib_TypeClass_VOID:
|
|
exec = privateSnippetExecutorVoid;
|
|
break;
|
|
case typelib_TypeClass_HYPER:
|
|
case typelib_TypeClass_UNSIGNED_HYPER:
|
|
exec = privateSnippetExecutorHyper;
|
|
break;
|
|
case typelib_TypeClass_FLOAT:
|
|
exec = privateSnippetExecutorFloat;
|
|
break;
|
|
case typelib_TypeClass_DOUBLE:
|
|
exec = privateSnippetExecutorDouble;
|
|
break;
|
|
case typelib_TypeClass_STRUCT:
|
|
case typelib_TypeClass_EXCEPTION:
|
|
#if defined(FREEBSD) || defined(NETBSD) || defined(OPENBSD) || defined(MACOSX) || \
|
|
defined(DRAGONFLY)
|
|
exec = returnsInRegister(pReturnTypeRef);
|
|
if (!exec)
|
|
{
|
|
exec = privateSnippetExecutorClass;
|
|
functionIndex |= 0x80000000;
|
|
}
|
|
break;
|
|
#endif
|
|
case typelib_TypeClass_STRING:
|
|
case typelib_TypeClass_TYPE:
|
|
case typelib_TypeClass_ANY:
|
|
case typelib_TypeClass_SEQUENCE:
|
|
case typelib_TypeClass_INTERFACE:
|
|
exec = privateSnippetExecutorClass;
|
|
functionIndex |= 0x80000000;
|
|
break;
|
|
default:
|
|
exec = privateSnippetExecutorGeneral;
|
|
break;
|
|
}
|
|
unsigned char * p = code;
|
|
assert(sizeof (sal_Int32) == 4);
|
|
// mov function_index, %eax:
|
|
*p++ = 0xB8;
|
|
*reinterpret_cast< sal_Int32 * >(p) = functionIndex;
|
|
p += sizeof (sal_Int32);
|
|
// mov vtable_offset, %edx:
|
|
*p++ = 0xBA;
|
|
*reinterpret_cast< sal_Int32 * >(p) = vtableOffset;
|
|
p += sizeof (sal_Int32);
|
|
// jmp privateSnippetExecutor:
|
|
*p++ = 0xE9;
|
|
*reinterpret_cast< sal_Int32 * >(p)
|
|
= reinterpret_cast<unsigned char *>(exec) - p - sizeof (sal_Int32) - writetoexecdiff;
|
|
p += sizeof (sal_Int32);
|
|
assert(p - code <= codeSnippetSize);
|
|
return code + codeSnippetSize;
|
|
}
|
|
|
|
}
|
|
|
|
struct bridges::cpp_uno::shared::VtableFactory::Slot { void const * 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;
|
|
}
|
|
|
|
namespace {
|
|
// Some dummy type whose RTTI is used in the synthesized proxy vtables to make uses of dynamic_cast
|
|
// on such proxy objects not crash:
|
|
struct ProxyRtti {};
|
|
}
|
|
|
|
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 = &typeid(ProxyRtti);
|
|
return slots + slotCount;
|
|
}
|
|
|
|
unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
|
|
Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
|
|
typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
|
|
sal_Int32 functionCount, sal_Int32 vtableOffset)
|
|
{
|
|
(*slots) -= functionCount;
|
|
Slot * s = *slots;
|
|
for (sal_Int32 i = 0; i < type->nMembers; ++i) {
|
|
typelib_TypeDescription * member = nullptr;
|
|
TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
|
|
assert(member != nullptr);
|
|
switch (member->eTypeClass) {
|
|
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
|
|
// Getter:
|
|
(s++)->fn = code + writetoexecdiff;
|
|
code = codeSnippet(
|
|
code, writetoexecdiff, functionOffset++, vtableOffset,
|
|
reinterpret_cast< typelib_InterfaceAttributeTypeDescription * >(
|
|
member)->pAttributeTypeRef);
|
|
// Setter:
|
|
if (!reinterpret_cast<
|
|
typelib_InterfaceAttributeTypeDescription * >(
|
|
member)->bReadOnly)
|
|
{
|
|
(s++)->fn = code + writetoexecdiff;
|
|
code = codeSnippet(
|
|
code, writetoexecdiff, functionOffset++, vtableOffset,
|
|
nullptr);
|
|
}
|
|
break;
|
|
|
|
case typelib_TypeClass_INTERFACE_METHOD:
|
|
(s++)->fn = code + writetoexecdiff;
|
|
code = codeSnippet(
|
|
code, writetoexecdiff, functionOffset++, vtableOffset,
|
|
reinterpret_cast< typelib_InterfaceMethodTypeDescription * >(
|
|
member)->pReturnTypeRef);
|
|
break;
|
|
|
|
default:
|
|
assert(false);
|
|
break;
|
|
}
|
|
TYPELIB_DANGER_RELEASE(member);
|
|
}
|
|
return code;
|
|
}
|
|
|
|
void bridges::cpp_uno::shared::VtableFactory::flushCode(
|
|
unsigned char const *, unsigned char const *)
|
|
{}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|