Files
libreoffice/bridges/source/cpp_uno/gcc3_ios/uno2cpp-i386.cxx
jan Iversen 7e1489bb4c iOS, remove support for 32bit (arm).
Supporting 32bit iOS, means a.o. adding several libraries to
the dependency list because macOSX does not install them by
default (e.g. zlib).

32bit is only used in old iPhones.

updated configure.ac
removed from solenv/gbuild/platform
bridges corrected

Change-Id: I415e744a9cb4acb3b5fbfca33c22940a1d56e390
2017-09-19 14:02:51 +02:00

488 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 .
*/
#ifdef __i386
// For the iOS emulator (i386). Basically a copy of
// ../gcc3_macosx_intel/uno2cpp.cxx with some cleanups and necessary
// changes.
#include <com/sun/star/uno/RuntimeException.hpp>
#include <sal/log.hxx>
#include "bridge.hxx"
#include "types.hxx"
#include "unointerfaceproxy.hxx"
#include "vtables.hxx"
#include "share.hxx"
using namespace ::com::sun::star::uno;
namespace
{
// The call instruction within the asm section of callVirtualMethod may throw
// exceptions. So that the compiler handles this correctly, it is important
// that (a) callVirtualMethod might call dummy_can_throw_anything (although this
// never happens at runtime), which in turn can throw exceptions, and (b)
// callVirtualMethod is not inlined at its call site (so that any exceptions are
// caught which are thrown from the instruction calling callVirtualMethod):
void callVirtualMethod(
void * pAdjustedThisPtr,
sal_Int32 nVtableIndex,
void * pRegisterReturn,
typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn,
sal_Int32 * pStackLongs,
sal_Int32 nStackLongs ) __attribute__((noinline));
void callVirtualMethod(
void * pAdjustedThisPtr,
sal_Int32 nVtableIndex,
void * pRegisterReturn,
typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn,
sal_Int32 * pStackLongs,
sal_Int32 nStackLongs )
{
// parameter list is mixed list of * and values
// reference parameters are pointers
assert(pStackLongs && pAdjustedThisPtr);
static_assert( (sizeof(void *) == 4) && (sizeof(sal_Int32) == 4), "### unexpected size of int!" );
assert(nStackLongs && pStackLongs && "### no stack in callVirtualMethod !");
// never called
if (! pAdjustedThisPtr) CPPU_CURRENT_NAMESPACE::dummy_can_throw_anything("xxx"); // address something
long edx, eax; // for register returns
void * stackptr;
asm volatile (
"mov %%esp, %2\n\t"
"mov %3, %%eax\n\t"
"mov %%eax, %%edx\n\t"
// stack padding to keep stack aligned:
"shl $2, %%eax\n\t"
"neg %%eax\n\t"
"add %%esp, %%eax\n\t"
"and $0xf, %%eax\n\t"
"sub %%eax, %%esp\n\t"
// copy:
"mov %%edx, %%eax\n\t"
"dec %%edx\n\t"
"shl $2, %%edx\n\t"
"add %4, %%edx\n"
"Lcopy:\n\t"
"pushl 0(%%edx)\n\t"
"sub $4, %%edx\n\t"
"dec %%eax\n\t"
"jne Lcopy\n\t"
// do the actual call
"mov %5, %%edx\n\t"
"mov 0(%%edx), %%edx\n\t"
"mov %6, %%eax\n\t"
"shl $2, %%eax\n\t"
"add %%eax, %%edx\n\t"
"mov 0(%%edx), %%edx\n\t"
"call *%%edx\n\t"
// save return registers
"mov %%eax, %0\n\t"
"mov %%edx, %1\n\t"
// cleanup stack
"mov %2, %%esp\n\t"
: "=m"(eax), "=m"(edx), "=m"(stackptr)
: "m"(nStackLongs), "m"(pStackLongs), "m"(pAdjustedThisPtr), "m"(nVtableIndex)
: "eax", "edx" );
switch( pReturnTypeDescr->eTypeClass )
{
case typelib_TypeClass_VOID:
break;
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
((long*)pRegisterReturn)[1] = edx;
SAL_FALLTHROUGH;
case typelib_TypeClass_LONG:
case typelib_TypeClass_UNSIGNED_LONG:
case typelib_TypeClass_CHAR:
case typelib_TypeClass_ENUM:
((long*)pRegisterReturn)[0] = eax;
break;
case typelib_TypeClass_SHORT:
case typelib_TypeClass_UNSIGNED_SHORT:
*(unsigned short*)pRegisterReturn = eax;
break;
case typelib_TypeClass_BOOLEAN:
case typelib_TypeClass_BYTE:
*(unsigned char*)pRegisterReturn = eax;
break;
case typelib_TypeClass_FLOAT:
asm ( "fstps %0" : : "m"(*(char *)pRegisterReturn) );
break;
case typelib_TypeClass_DOUBLE:
asm ( "fstpl %0\n\t" : : "m"(*(char *)pRegisterReturn) );
break;
default: {
sal_Int32 const nRetSize = pReturnTypeDescr->nSize;
if (bSimpleReturn && nRetSize <= 8 && nRetSize > 0) {
if (nRetSize > 4)
static_cast<long *>(pRegisterReturn)[1] = edx;
static_cast<long *>(pRegisterReturn)[0] = eax;
}
break;
}
}
}
static void cpp_call(
bridges::cpp_uno::shared::UnoInterfaceProxy * pThis,
bridges::cpp_uno::shared::VtableSlot aVtableSlot,
typelib_TypeDescriptionReference * pReturnTypeRef,
sal_Int32 nParams, typelib_MethodParameter * pParams,
void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc )
{
// max space for: [complex ret ptr], values|ptr ...
char * pCppStack =
(char *)alloca( sizeof(sal_Int32) + ((nParams+2) * sizeof(sal_Int64)) );
char * pCppStackStart = pCppStack;
// return
typelib_TypeDescription * pReturnTypeDescr = 0;
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
assert(pReturnTypeDescr);
void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
bool bSimpleReturn = true;
if (pReturnTypeDescr)
{
bSimpleReturn = CPPU_CURRENT_NAMESPACE::isSimpleReturnType(
pReturnTypeDescr);
if (bSimpleReturn)
{
pCppReturn = pUnoReturn; // direct way for simple types
}
else
{
pCppReturn = (bridges::cpp_uno::shared::relatesToInterfaceType(
pReturnTypeDescr )
? alloca( pReturnTypeDescr->nSize )
: pUnoReturn); // direct way
// complex return via ptr
*(void **)pCppStack = pCppReturn;
pCppStack += sizeof(void *);
}
}
// push this
void * pAdjustedThisPtr = reinterpret_cast< void ** >(pThis->getCppI())
+ aVtableSlot.offset;
*(void**)pCppStack = pAdjustedThisPtr;
pCppStack += sizeof( void* );
// stack space
static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!");
// args
void ** pCppArgs = (void **)alloca( 3 * sizeof(void *) * nParams );
// indices of values this have to be converted (interface conversion cpp<=>uno)
sal_Int32 * pTempIndices = (sal_Int32 *)(pCppArgs + nParams);
// type descriptions for reconversions
typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * nParams));
sal_Int32 nTempIndices = 0;
for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
{
const typelib_MethodParameter & rParam = pParams[nPos];
typelib_TypeDescription * pParamTypeDescr = 0;
TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
if (!rParam.bOut
&& bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
{
uno_copyAndConvertData( pCppArgs[nPos] = pCppStack, pUnoArgs[nPos], pParamTypeDescr,
pThis->getBridge()->getUno2Cpp() );
switch (pParamTypeDescr->eTypeClass)
{
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
case typelib_TypeClass_DOUBLE:
pCppStack += sizeof(sal_Int32); // extra long
SAL_FALLTHROUGH;
default:
break;
}
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
else // ptr to complex value | ref
{
if (! rParam.bIn) // is pure out
{
// cpp out is constructed mem, uno out is not!
uno_constructData(
*(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
pParamTypeDescr );
pTempIndices[nTempIndices] = nPos; // default constructed for cpp call
// will be released at reconversion
ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
}
// is in/inout
else if (bridges::cpp_uno::shared::relatesToInterfaceType(
pParamTypeDescr ))
{
uno_copyAndConvertData(
*(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
pUnoArgs[nPos], pParamTypeDescr,
pThis->getBridge()->getUno2Cpp() );
pTempIndices[nTempIndices] = nPos; // has to be reconverted
// will be released at reconversion
ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
}
else // direct way
{
*(void **)pCppStack = pCppArgs[nPos] = pUnoArgs[nPos];
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
}
pCppStack += sizeof(sal_Int32); // standard parameter length
}
try
{
assert( !( (pCppStack - pCppStackStart ) & 3) && "UNALIGNED STACK !!! (Please DO panic)" );
callVirtualMethod(
pAdjustedThisPtr, aVtableSlot.index,
pCppReturn, pReturnTypeDescr, bSimpleReturn,
(sal_Int32 *)pCppStackStart, (pCppStack - pCppStackStart) / sizeof(sal_Int32) );
// NO exception occurred...
*ppUnoExc = 0;
// reconvert temporary params
for ( ; nTempIndices--; )
{
sal_Int32 nIndex = pTempIndices[nTempIndices];
typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices];
if (pParams[nIndex].bIn)
{
if (pParams[nIndex].bOut) // inout
{
uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value
uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
pThis->getBridge()->getCpp2Uno() );
}
}
else // pure out
{
uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
pThis->getBridge()->getCpp2Uno() );
}
// destroy temp cpp param => cpp: every param was constructed
uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
// return value
if (pCppReturn && pUnoReturn != pCppReturn)
{
uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr,
pThis->getBridge()->getCpp2Uno() );
uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release );
}
}
catch (...)
{
SAL_INFO( "bridges.ios", "caught C++ exception" );
// fill uno exception
CPPU_CURRENT_NAMESPACE::fillUnoException( abi::__cxa_get_globals()->caughtExceptions, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
// temporary params
for ( ; nTempIndices--; )
{
sal_Int32 nIndex = pTempIndices[nTempIndices];
// destroy temp cpp param => cpp: every param was constructed
uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndices], cpp_release );
TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] );
}
// return type
if (pReturnTypeDescr)
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
}
}
}
namespace CPPU_CURRENT_NAMESPACE {
bool isSimpleReturnType(typelib_TypeDescription * pTD, bool recursive)
{
if (bridges::cpp_uno::shared::isSimpleType( pTD ))
return true;
// Only structs of exactly 1, 2, 4, or 8 bytes are returned through
// registers, see <http://developer.apple.com/documentation/DeveloperTools/
// Conceptual/LowLevelABI/Articles/IA32.html>:
if (pTD->eTypeClass == typelib_TypeClass_STRUCT &&
(recursive || pTD->nSize <= 2 || pTD->nSize == 4 || pTD->nSize == 8))
{
typelib_CompoundTypeDescription *const pCompTD =
(typelib_CompoundTypeDescription *) pTD;
for ( sal_Int32 pos = pCompTD->nMembers; pos--; ) {
typelib_TypeDescription * pMemberTD = 0;
TYPELIB_DANGER_GET( &pMemberTD, pCompTD->ppTypeRefs[pos] );
bool const b = isSimpleReturnType(pMemberTD, true);
TYPELIB_DANGER_RELEASE( pMemberTD );
if (! b)
return false;
}
return true;
}
return false;
}
}
namespace bridges { namespace cpp_uno { namespace shared {
void unoInterfaceProxyDispatch(
uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
void * pReturn, void * pArgs[], uno_Any ** ppException )
{
// is my surrogate
bridges::cpp_uno::shared::UnoInterfaceProxy * pThis
= static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI);
switch (pMemberDescr->eTypeClass)
{
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
{
VtableSlot aVtableSlot(
getVtableSlot(
reinterpret_cast<
typelib_InterfaceAttributeTypeDescription const * >(
pMemberDescr)));
if (pReturn)
{
// dependent dispatch
cpp_call(
pThis, aVtableSlot,
((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef,
0, 0, // no params
pReturn, pArgs, ppException );
}
else
{
// is SET
typelib_MethodParameter aParam;
aParam.pTypeRef =
((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef;
aParam.bIn = sal_True;
aParam.bOut = sal_False;
typelib_TypeDescriptionReference * pReturnTypeRef = 0;
OUString aVoidName("void");
typelib_typedescriptionreference_new(
&pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData );
// dependent dispatch
aVtableSlot.index += 1; // get, then set method
cpp_call(
pThis, aVtableSlot,
pReturnTypeRef,
1, &aParam,
pReturn, pArgs, ppException );
typelib_typedescriptionreference_release( pReturnTypeRef );
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
VtableSlot aVtableSlot(
getVtableSlot(
reinterpret_cast<
typelib_InterfaceMethodTypeDescription const * >(
pMemberDescr)));
switch (aVtableSlot.index)
{
// standard calls
case 1: // acquire uno interface
(*pUnoI->acquire)( pUnoI );
*ppException = 0;
break;
case 2: // release uno interface
(*pUnoI->release)( pUnoI );
*ppException = 0;
break;
case 0: // queryInterface() opt
{
typelib_TypeDescription * pTD = 0;
TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() );
if (pTD)
{
uno_Interface * pInterface = 0;
(*pThis->pBridge->getUnoEnv()->getRegisteredInterface)(
pThis->pBridge->getUnoEnv(),
(void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
if (pInterface)
{
::uno_any_construct(
reinterpret_cast< uno_Any * >( pReturn ),
&pInterface, pTD, 0 );
(*pInterface->release)( pInterface );
TYPELIB_DANGER_RELEASE( pTD );
*ppException = 0;
break;
}
TYPELIB_DANGER_RELEASE( pTD );
}
} // else perform queryInterface()
SAL_FALLTHROUGH;
default:
// dependent dispatch
cpp_call(
pThis, aVtableSlot,
((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef,
((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams,
((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams,
pReturn, pArgs, ppException );
}
break;
}
default:
{
::com::sun::star::uno::RuntimeException aExc(
"illegal member type description!",
::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
Type const & rExcType = cppu::UnoType<decltype(aExc)>::get();
// binary identical null reference
::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 );
}
}
}
} } }
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */