Files
libreoffice/bridges/source/cpp_uno/gcc3_ios_arm/cpp2uno-arm.cxx
Michael Stahl b647996a9b replace sal_Size with std::size_t (or sal_uInt64 for SvStream pos)
... except in include/rtl, include/sal, include/uno, where sal_Size is
retained for compatibility, and where callers of rtl functions pass in
pointers that are incompatible on MSVC.

Change-Id: I8344453780689f5120ba0870e44965b6d292450c
2016-09-15 12:01:11 +02:00

577 lines
21 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 .
*/
#ifdef __arm
// For iOS devices (ARM). Basically a copy of
// ../gcc3_linux_arm/cpp2uno.cxx with some cleanups and necessary
// changes: No dynamic code generation as that is prohibited for apps
// in the App Store. Instead we use a set of pre-generated snippets.
// No attempts at factoring out the large amounts of more or less
// common code in this and cpp2uno-i386.cxx have been done. Which is
// sad. But then the whole bridges/source/cpp_uno is full of
// copy/paste. So I continue in that tradition...
// Note that for iOS, neither __ARM_EABI__ or __ARM_PCS_VFP are
// defined. The ifdefs for those have been left in place to keep this
// file as close to ../gcc3_linux_arm/cpp2uno.cxx as possible, to make
// future unification easier.
#include <com/sun/star/uno/RuntimeException.hpp>
#include <sal/log.hxx>
#include <uno/data.h>
#include <typelib/typedescription.hxx>
#include "bridge.hxx"
#include "cppinterfaceproxy.hxx"
#include "types.hxx"
#include "vtablefactory.hxx"
#include "share.hxx"
extern "C" {
extern int nFunIndexes, nVtableOffsets;
extern int codeSnippets[];
}
using namespace ::com::sun::star::uno;
namespace
{
static typelib_TypeClass cpp2uno_call(
bridges::cpp_uno::shared::CppInterfaceProxy* pThis,
const typelib_TypeDescription * pMemberTypeDescr,
typelib_TypeDescriptionReference * pReturnTypeRef,
sal_Int32 nParams, typelib_MethodParameter * pParams,
void ** pCallStack,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
// pCallStack: ret, [return ptr], this, params
char * pTopStack = (char *)(pCallStack + 0);
char * pCppStack = pTopStack;
#ifdef __ARM_PCS_VFP
int dc = 0;
char * pFloatArgs = (char *)(pCppStack - 64);
#endif
// return
typelib_TypeDescription * pReturnTypeDescr = 0;
if (pReturnTypeRef)
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
void * pUnoReturn = 0;
// complex return ptr: if != 0 && != pUnoReturn, reconversion need
void * pCppReturn = 0;
if (pReturnTypeDescr)
{
if (!arm::return_in_hidden_param(pReturnTypeRef))
pUnoReturn = pRegisterReturn; // direct way for simple types
else // complex return via ptr (pCppReturn)
{
pCppReturn = *(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 = (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 = (sal_Int32 *)(pUnoArgs + (2 * nParams));
// type descriptions for reconversions
typelib_TypeDescription ** ppTempParamTypeDescr =
(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 = 0;
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] = *(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 ),
*(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] = *(void **)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], 0 );
TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] );
}
if (pReturnTypeDescr)
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc,
pThis->getBridge()->getUno2Cpp() ); // has to destruct the any
// is here for dummy
return typelib_TypeClass_VOID;
}
else // else no exception occurred...
{
// temporary params
for ( ; nTempIndices--; )
{
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, 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 eax
*(void **)pRegisterReturn = pCppReturn;
}
if (pReturnTypeDescr)
{
typelib_TypeClass eRet =
(typelib_TypeClass)pReturnTypeDescr->eTypeClass;
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
return eRet;
}
else
return typelib_TypeClass_VOID;
}
}
static 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();
assert( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex &&
"### illegal vtable index!" );
if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
{
throw RuntimeException( "illegal vtable index!", (XInterface *)pCppI );
}
// determine called method
assert( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex &&
"### illegal vtable index!" );
sal_Int32 nMemberPos =
pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
assert( nMemberPos < pTypeDescr->nAllMembers &&
"### illegal member index!" );
TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
typelib_TypeClass eRet;
switch (aMemberDescr.get()->eTypeClass)
{
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
{
if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] ==
nFunctionIndex)
{
// is GET method
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
0, 0, // no params
pCallStack, pRegisterReturn );
}
else
{
// is SET method
typelib_MethodParameter aParam;
aParam.pTypeRef =
((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
aParam.bIn = sal_True;
aParam.bOut = sal_False;
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
0, // indicates void return
1, &aParam,
pCallStack, pRegisterReturn );
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
// is METHOD
switch (nFunctionIndex)
{
case 1: // acquire()
pCppI->acquireProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 2: // release()
pCppI->releaseProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 0: // queryInterface() opt
{
typelib_TypeDescription * pTD = 0;
TYPELIB_DANGER_GET(&pTD,
reinterpret_cast<Type *>(pCallStack[2])->getTypeLibType());
if (pTD)
{
XInterface * pInterface = 0;
(*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
pCppI->getBridge()->getCppEnv(),
(void **)&pInterface, pCppI->getOid().pData,
(typelib_InterfaceTypeDescription *)pTD );
if (pInterface)
{
::uno_any_construct(
reinterpret_cast< uno_Any * >( pCallStack[0] ),
&pInterface, pTD, cpp_acquire );
pInterface->release();
TYPELIB_DANGER_RELEASE( pTD );
*(void **)pRegisterReturn = pCallStack[0];
eRet = typelib_TypeClass_ANY;
break;
}
TYPELIB_DANGER_RELEASE( pTD );
}
} // else perform queryInterface()
SAL_FALLTHROUGH;
default:
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
pCallStack, pRegisterReturn );
}
break;
}
default:
{
throw RuntimeException( "no member description found!", (XInterface *)pCppI );
}
}
return eRet;
}
}
/**
* is called on incoming vtable calls
* (called by asm snippets)
*/
extern "C" 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 = (unsigned long)(*(unsigned char *)&nRegReturn);
break;
case typelib_TypeClass_CHAR:
case typelib_TypeClass_UNSIGNED_SHORT:
case typelib_TypeClass_SHORT:
nRegReturn = (unsigned long)(*(unsigned short *)&nRegReturn);
break;
case typelib_TypeClass_ENUM:
case typelib_TypeClass_UNSIGNED_LONG:
case typelib_TypeClass_LONG:
nRegReturn = (unsigned long)(*(unsigned int *)&nRegReturn);
break;
case typelib_TypeClass_VOID:
default:
break;
}
return nRegReturn;
}
namespace
{
unsigned char *codeSnippet(const typelib_InterfaceTypeDescription *type,
const typelib_TypeDescription *member,
sal_Int32 functionIndex,
sal_Int32 vtableOffset,
bool bHasHiddenParam)
{
assert(functionIndex < nFunIndexes);
if (!(functionIndex < nFunIndexes))
return NULL;
assert(vtableOffset < nVtableOffsets);
if (!(vtableOffset < nVtableOffsets))
return NULL;
// The codeSnippets table is indexed by functionIndex,
// vtableOffset, and the has-hidden-param flag
int index = functionIndex*nVtableOffsets*2 + vtableOffset*2 + bHasHiddenParam;
unsigned char *result = ((unsigned char *) &codeSnippets) + codeSnippets[index];
SAL_INFO( "bridges.ios", "codeSnippet(" << OUString(type->aBase.pTypeName) << "::" << OUString(member->pTypeName) << "): [" << functionIndex << "," << vtableOffset << "," << (int)bHasHiddenParam << "]=" << (void *) result << " (" << std::hex << ((int*)result)[0] << "," << ((int*)result)[1] << "," << ((int*)result)[2] << "," << ((int*)result)[3] << ")");
return result;
}
}
struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
{
return static_cast< Slot * >(block) + 2;
}
std::size_t bridges::cpp_uno::shared::VtableFactory::getBlockSize(
sal_Int32 slotCount)
{
return (slotCount + 2) * sizeof (Slot);
}
bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::initializeBlock(
void * block, sal_Int32 slotCount, sal_Int32,
typelib_InterfaceTypeDescription *)
{
Slot * slots = mapBlockToVtable(block);
slots[-2].fn = 0;
slots[-1].fn = 0;
return slots + slotCount;
}
unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
Slot ** slots, unsigned char * code,
typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
sal_Int32 functionCount, sal_Int32 vtableOffset)
{
(*slots) -= functionCount;
Slot * s = *slots;
for (sal_Int32 i = 0; i < type->nMembers; ++i)
{
typelib_TypeDescription * member = 0;
TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
assert(member != 0);
switch (member->eTypeClass)
{
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
{
typelib_InterfaceAttributeTypeDescription *pAttrTD =
reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( member );
// Getter:
(s++)->fn = codeSnippet(type, member,
functionOffset++, vtableOffset,
arm::return_in_hidden_param( pAttrTD->pAttributeTypeRef ));
// Setter:
if (!pAttrTD->bReadOnly)
{
(s++)->fn = codeSnippet(type, member,
functionOffset++, vtableOffset,
false);
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
typelib_InterfaceMethodTypeDescription *pMethodTD =
reinterpret_cast<
typelib_InterfaceMethodTypeDescription * >(member);
(s++)->fn = codeSnippet(type, member,
functionOffset++, vtableOffset,
arm::return_in_hidden_param(pMethodTD->pReturnTypeRef));
break;
}
default:
assert(false);
break;
}
TYPELIB_DANGER_RELEASE(member);
}
return code;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */