blob: cd3433c4ad56133e329df214ebc8f5bebac13710 [file] [log] [blame]
/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"
#include <com/sun/star/uno/genfunc.hxx>
#include <uno/data.h>
#include <typelib/typedescription.hxx>
#include "bridges/cpp_uno/shared/bridge.hxx"
#include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
#include "bridges/cpp_uno/shared/types.hxx"
#include "bridges/cpp_uno/shared/vtablefactory.hxx"
#include "share.hxx"
#include <stdio.h>
#include <string.h>
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, // 0 indicates void return
sal_Int32 nParams, typelib_MethodParameter * pParams,
void ** gpreg, void ** fpreg, void ** ovrflw,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
int ng = 0; //number of gpr registers used
int nf = 0; //number of fpr regsiters used
void ** pCppStack; //temporary stack pointer
// gpreg: [ret *], this, [gpr params]
// fpreg: [fpr params]
// ovrflw: [gpr or fpr params (properly aligned)]
// return
typelib_TypeDescription * pReturnTypeDescr = 0;
if (pReturnTypeRef)
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
void * pUnoReturn = 0;
void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
if (pReturnTypeDescr)
{
if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
{
pUnoReturn = pRegisterReturn; // direct way for simple types
}
else // complex return via ptr (pCppReturn)
{
pCppReturn = *(void **)gpreg;
gpreg++;
ng++;
pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
? alloca( pReturnTypeDescr->nSize )
: pCppReturn); // direct way
}
}
// pop this
gpreg++;
ng++;
// stack space
OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" );
// parameters
void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
void ** pCppArgs = pUnoArgs + nParams;
// indizes of values this have to be converted (interface conversion cpp<=>uno)
sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
// type descriptions for reconversions
typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
sal_Int32 nTempIndizes = 0;
for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
{
const typelib_MethodParameter & rParam = pParams[nPos];
typelib_TypeDescription * pParamTypeDescr = 0;
TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) // value
{
switch (pParamTypeDescr->eTypeClass)
{
case typelib_TypeClass_DOUBLE:
if (nf < 2) {
pCppArgs[nPos] = fpreg;
pUnoArgs[nPos] = fpreg;
nf++;
fpreg += 2;
} else {
pCppArgs[nPos] = ovrflw;
pUnoArgs[nPos] = ovrflw;
ovrflw += 2;
}
break;
case typelib_TypeClass_FLOAT:
// fpreg are all double values so need to
// modify fpreg to be a single word float value
if (nf < 2) {
// float tmp = (float) (*((double *)fpreg));
// (*((float *) fpreg)) = tmp;
pCppArgs[nPos] = fpreg;
pUnoArgs[nPos] = fpreg;
nf++;
fpreg += 2;
} else {
pCppArgs[nPos] = ovrflw;
pUnoArgs[nPos] = ovrflw;
ovrflw += 1;
}
break;
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
if (ng < 4) {
pCppArgs[nPos] = gpreg;
pUnoArgs[nPos] = gpreg;
ng += 2;
gpreg += 2;
} else {
pCppArgs[nPos] = ovrflw;
pUnoArgs[nPos] = ovrflw;
ovrflw += 2;
}
break;
case typelib_TypeClass_BYTE:
case typelib_TypeClass_BOOLEAN:
if (ng < 5) {
pCppArgs[nPos] = (((char *)gpreg) + 3);
pUnoArgs[nPos] = (((char *)gpreg) + 3);
ng++;
gpreg++;
} else {
pCppArgs[nPos] = (((char *)ovrflw) + 3);
pUnoArgs[nPos] = (((char *)ovrflw) + 3);
ovrflw++;
}
break;
case typelib_TypeClass_CHAR:
case typelib_TypeClass_SHORT:
case typelib_TypeClass_UNSIGNED_SHORT:
if (ng < 5) {
pCppArgs[nPos] = (((char *)gpreg)+ 2);
pUnoArgs[nPos] = (((char *)gpreg)+ 2);
ng++;
gpreg++;
} else {
pCppArgs[nPos] = (((char *)ovrflw) + 2);
pUnoArgs[nPos] = (((char *)ovrflw) + 2);
ovrflw++;
}
break;
default:
if (ng < 5) {
pCppArgs[nPos] = gpreg;
pUnoArgs[nPos] = gpreg;
ng++;
gpreg++;
} else {
pCppArgs[nPos] = ovrflw;
pUnoArgs[nPos] = ovrflw;
ovrflw++;
}
break;
}
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
else // ptr to complex value | ref
{
if (ng < 5) {
pCppArgs[nPos] = *(void **)gpreg;
pCppStack = gpreg;
ng++;
gpreg++;
} else {
pCppArgs[nPos] = *(void **)ovrflw;
pCppStack = ovrflw;
ovrflw++;
}
if (! rParam.bIn) // is pure out
{
// uno out is unconstructed mem!
pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
pTempIndizes[nTempIndizes] = nPos;
// will be released at reconversion
ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
}
// is in/inout
else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
{
uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
*(void **)pCppStack, pParamTypeDescr,
pThis->getBridge()->getCpp2Uno() );
pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
// will be released at reconversion
ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
}
else // direct way
{
pUnoArgs[nPos] = *(void **)pCppStack;
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
}
}
// ExceptionHolder
uno_Any aUnoExc; // Any will be constructed by callee
uno_Any * pUnoExc = &aUnoExc;
// invoke uno dispatch call
(*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
// in case an exception occured...
if (pUnoExc)
{
// destruct temporary in/inout params
for ( ; nTempIndizes--; )
{
sal_Int32 nIndex = pTempIndizes[nTempIndizes];
if (pParams[nIndex].bIn) // is in/inout => was constructed
uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
}
if (pReturnTypeDescr)
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() ); // has to destruct the any
// is here for dummy
return typelib_TypeClass_VOID;
}
else // else no exception occured...
{
// temporary params
for ( ; nTempIndizes--; )
{
sal_Int32 nIndex = pTempIndizes[nTempIndizes];
typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
if (pParams[nIndex].bOut) // inout/out
{
// convert and assign
uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
pThis->getBridge()->getUno2Cpp() );
}
// destroy temp uno param
uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
// return
if (pCppReturn) // has complex return
{
if (pUnoReturn != pCppReturn) // needs reconversion
{
uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
pThis->getBridge()->getUno2Cpp() );
// destroy temp uno return
uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
}
// complex return ptr is set to return reg
*(void **)pRegisterReturn = pCppReturn;
}
if (pReturnTypeDescr)
{
typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
return eRet;
}
else
return typelib_TypeClass_VOID;
}
}
//============================================================================
static typelib_TypeClass cpp_mediate(
sal_uInt32 nOffsetAndIndex,
void ** gpreg, void ** fpreg, void ** ovrflw,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
sal_Int16 nVtableOffset = (nOffsetAndIndex >> 16);
sal_Int16 nFunctionIndex = (nOffsetAndIndex & 0xFFFF);
// gpreg: [ret *], this, [other gpr params]
// fpreg: [fpr params]
// ovrflw: [gpr or fpr params (properly aligned)]
// _this_ ptr is patched cppu_XInterfaceProxy object
void * pThis;
if( nFunctionIndex & 0x8000 )
{
nFunctionIndex &= 0x7fff;
pThis = gpreg[1];
}
else
{
pThis = gpreg[0];
}
pThis = static_cast< char * >(pThis) - nVtableOffset;
bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
= bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
pThis);
typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
{
throw RuntimeException(
rtl::OUString::createFromAscii("illegal vtable index!"),
(XInterface *)pCppI );
}
// determine called method
OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
OSL_ENSURE( 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
gpreg, fpreg, ovrflw, 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,
gpreg, fpreg, ovrflw, pRegisterReturn );
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
// is METHOD
switch (nFunctionIndex)
{
case 1: // acquire()
pCppI->acquireProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 2: // release()
pCppI->releaseProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 0: // queryInterface() opt
{
typelib_TypeDescription * pTD = 0;
TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() );
if (pTD)
{
XInterface * pInterface = 0;
(*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
pCppI->getBridge()->getCppEnv(),
(void **)&pInterface, pCppI->getOid().pData,
(typelib_InterfaceTypeDescription *)pTD );
if (pInterface)
{
::uno_any_construct(
reinterpret_cast< uno_Any * >( gpreg[0] ),
&pInterface, pTD, cpp_acquire );
pInterface->release();
TYPELIB_DANGER_RELEASE( pTD );
*(void **)pRegisterReturn = gpreg[0];
eRet = typelib_TypeClass_ANY;
break;
}
TYPELIB_DANGER_RELEASE( pTD );
}
} // else perform queryInterface()
default:
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
gpreg, fpreg, ovrflw, pRegisterReturn );
}
break;
}
default:
{
throw RuntimeException(
rtl::OUString::createFromAscii("no member description found!"),
(XInterface *)pCppI );
// is here for dummy
eRet = typelib_TypeClass_VOID;
}
}
return eRet;
}
//==================================================================================================
/**
* is called on incoming vtable calls
* (called by asm snippets)
*/
static void privateSnippetExecutor( sal_uInt32 nOffsetAndIndex, void** gpregptr, void** fpregptr, void** ovrflw)
{
#ifdef CMC_DEBUG
fprintf(stderr, "privateSnippetExecutor\n");
#endif
sal_Int32 gpreg[8];
double fpreg[8];
memcpy( gpreg, gpregptr, 32);
memcpy( fpreg, fpregptr, 64);
volatile long nRegReturn[2];
typelib_TypeClass aType =
cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, ovrflw,
(sal_Int64*)nRegReturn );
switch( aType )
{
// move return value into register space
// (will be loaded by machine code snippet)
case typelib_TypeClass_BOOLEAN:
{
unsigned long tmp = (unsigned long)(*(unsigned char *)nRegReturn);
__asm__ volatile ( "l 2,%0\n\t" : :
"m"(tmp) : "2" );
break;
}
case typelib_TypeClass_BYTE:
{
long tmp = (long)(*(signed char *)nRegReturn);
__asm__ volatile ( "l 2,%0\n\t" : :
"m"(tmp) : "2" );
break;
}
case typelib_TypeClass_CHAR:
case typelib_TypeClass_UNSIGNED_SHORT:
{
unsigned long tmp = (unsigned long)(*(unsigned short *)nRegReturn);
__asm__ volatile ( "l 2,%0\n\t" : :
"m"(tmp) : "2" );
break;
}
case typelib_TypeClass_SHORT:
{
long tmp = (long)(*(short *)nRegReturn);
__asm__ volatile ( "l 2,%0\n\t" : :
"m"(tmp) : "2" );
break;
}
case typelib_TypeClass_FLOAT:
__asm__ volatile ( "le 0,%0\n\t" : :
"m" (*((float*)nRegReturn)) : "16" );
break;
case typelib_TypeClass_DOUBLE:
__asm__ volatile ( "ld 0,%0\n\t" : :
"m" (*((double*)nRegReturn)) : "16" );
break;
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
__asm__ volatile ( "lm 2,3,%0\n\t" : :
"m"(nRegReturn[0]) : "2", "3" );
break;
default:
__asm__ volatile ( "l 2,%0\n\t" : :
"m"(nRegReturn[0]) : "2" );
break;
}
}
const int codeSnippetSize = 50;
unsigned char* codeSnippet( unsigned char * code, sal_Int16 nFunctionIndex, sal_Int16 nVtableOffset, bool simple_ret_type )
{
sal_uInt32 nOffsetAndIndex = ( ( nVtableOffset ) << 16 ) | ( nFunctionIndex );
if (! simple_ret_type)
nOffsetAndIndex |= 0x8000;
OSL_ASSERT( sizeof (long) == 4 );
/* generate this code */
// lr %r0,%r13
// bras %r13,0x6
// .long privateSnippetExecutor
// .long nOffsetAndIndex
// stm %r2,%r6,8(%r15)
// std %f0,64(%r15)
// std %f2,72(%r15)
// l %r2,4(%r13)
// la %r3,8(%r15)
// la %r4,64(%r15)
// la %r5,96(%r15)
// l %r1,0(%r13)
// lr %r13,%r0
// br %r1
unsigned char * p = code;
*reinterpret_cast< sal_Int16 * >(p) = 0x180d;
p += sizeof(sal_Int16);
*reinterpret_cast< sal_Int32 * >(p) = 0xa7d50006;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) =
reinterpret_cast< sal_Int32 >(privateSnippetExecutor);
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = nOffsetAndIndex;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x9026f008;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x6000f040;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x6020f048;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x5820d004;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x4130f008;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x4140f040;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x4150f060;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int32 * >(p) = 0x5810d000;
p += sizeof(sal_Int32);
*reinterpret_cast< sal_Int16 * >(p) = 0x18d0;
p += sizeof(sal_Int16);
*reinterpret_cast< sal_Int16 * >(p) = 0x07f1;
p += sizeof(sal_Int16);
return (code + codeSnippetSize);
}
}
void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const *, unsigned char const *)
{
}
struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
{
return static_cast< Slot * >(block) + 2;
}
sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
sal_Int32 slotCount)
{
return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
}
bridges::cpp_uno::shared::VtableFactory::Slot *
bridges::cpp_uno::shared::VtableFactory::initializeBlock(
void * block, sal_Int32 slotCount)
{
Slot * slots = mapBlockToVtable(block);
slots[-2].fn = 0;
slots[-1].fn = 0;
return slots + slotCount;
}
unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
sal_Int32 functionCount, sal_Int32 vtableOffset)
{
(*slots) -= functionCount;
Slot * s = *slots;
#ifdef CMC_DEBUG
fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
#endif
for (sal_Int32 i = 0; i < type->nMembers; ++i) {
typelib_TypeDescription * member = 0;
TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
OSL_ASSERT(member != 0);
switch (member->eTypeClass) {
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
// Getter:
(s++)->fn = code + writetoexecdiff;
code = codeSnippet(
code, functionOffset++, vtableOffset,
bridges::cpp_uno::shared::isSimpleType(
reinterpret_cast<
typelib_InterfaceAttributeTypeDescription * >(
member)->pAttributeTypeRef));
// Setter:
if (!reinterpret_cast<
typelib_InterfaceAttributeTypeDescription * >(
member)->bReadOnly)
{
(s++)->fn = code + writetoexecdiff;
code = codeSnippet(code, functionOffset++, vtableOffset, true);
}
break;
case typelib_TypeClass_INTERFACE_METHOD:
(s++)->fn = code + writetoexecdiff;
code = codeSnippet(
code, functionOffset++, vtableOffset,
bridges::cpp_uno::shared::isSimpleType(
reinterpret_cast<
typelib_InterfaceMethodTypeDescription * >(
member)->pReturnTypeRef));
break;
default:
OSL_ASSERT(false);
break;
}
TYPELIB_DANGER_RELEASE(member);
}
return code;
}
/* vi:set tabstop=4 shiftwidth=4 expandtab: */