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|
/* -*- 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 <com/sun/star/uno/genfunc.hxx>
#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"
#include <stdio.h>
//Calling Standards:
// "Calling Standard for Alpha Systems"
// (Tru64 UNIX Version 5.1 or higher, August 2000)
//http://www.tru64unix.compaq.com/docs/base_doc/DOCUMENTATION/V51_HTML/ARH9MBTE/TITLE.HTM
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 */ )
{
#if OSL_DEBUG_LEVEL > 2
fprintf(stderr, "as far as cpp2uno_call\n");
#endif
int nregs = 0; //number of words passed in registers
// 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++;
fpreg++;
nregs++;
pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
? alloca( pReturnTypeDescr->nSize )
: pCppReturn); // direct way
}
}
// pop this
gpreg++;
fpreg++;
nregs++;
// stack space
static_assert(sizeof(void *) == sizeof(sal_Int64), "### 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 OSL_DEBUG_LEVEL > 2
fprintf(stderr, "arg %d of %d\n", nPos, nParams);
#endif
if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) // value
{
#if OSL_DEBUG_LEVEL > 2
fprintf(stderr, "simple type is %d\n", pParamTypeDescr->eTypeClass);
#endif
switch (pParamTypeDescr->eTypeClass)
{
case typelib_TypeClass_FLOAT:
case typelib_TypeClass_DOUBLE:
if (nregs < axp::MAX_WORDS_IN_REGS)
{
if (pParamTypeDescr->eTypeClass == typelib_TypeClass_FLOAT)
{
float tmp = (float) (*((double *)fpreg));
(*((float *) fpreg)) = tmp;
}
pCppArgs[nPos] = pUnoArgs[nPos] = fpreg;
gpreg++;
fpreg++;
nregs++;
}
else
{
pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
ovrflw++;
}
break;
case typelib_TypeClass_BYTE:
case typelib_TypeClass_BOOLEAN:
if (nregs < axp::MAX_WORDS_IN_REGS)
{
pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
gpreg++;
fpreg++;
nregs++;
}
else
{
pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
ovrflw++;
}
break;
case typelib_TypeClass_CHAR:
case typelib_TypeClass_SHORT:
case typelib_TypeClass_UNSIGNED_SHORT:
if (nregs < axp::MAX_WORDS_IN_REGS)
{
pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
gpreg++;
fpreg++;
nregs++;
}
else
{
pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
ovrflw++;
}
break;
case typelib_TypeClass_ENUM:
case typelib_TypeClass_LONG:
case typelib_TypeClass_UNSIGNED_LONG:
if (nregs < axp::MAX_WORDS_IN_REGS)
{
pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
gpreg++;
fpreg++;
nregs++;
}
else
{
pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
ovrflw++;
}
break;
default:
if (nregs < axp::MAX_WORDS_IN_REGS)
{
pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
gpreg++;
fpreg++;
nregs++;
}
else
{
pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
ovrflw++;
}
break;
}
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
else // ptr to complex value | ref
{
#if OSL_DEBUG_LEVEL > 2
fprintf(stderr, "complex, nregs is %d\n", nregs);
#endif
void *pCppStack; //temporary stack pointer
if (nregs < axp::MAX_WORDS_IN_REGS)
{
pCppArgs[nPos] = pCppStack = *gpreg;
gpreg++;
fpreg++;
nregs++;
}
else
{
pCppArgs[nPos] = pCppStack = *ovrflw;
ovrflw++;
}
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 ),
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] = pCppStack;
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
}
}
#if OSL_DEBUG_LEVEL > 2
fprintf(stderr, "end of params\n");
#endif
// 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 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_uInt64 nOffsetAndIndex,
void ** gpreg, void ** fpreg, void ** ovrflw,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
static_assert(sizeof(sal_Int64)==sizeof(void *), "### unexpected!");
sal_Int32 nVtableOffset = (nOffsetAndIndex >> 32);
sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFFFFFF);
#if OSL_DEBUG_LEVEL > 2
fprintf(stderr, "nVTableOffset, nFunctionIndex are %x %x\n", nVtableOffset, nFunctionIndex);
#endif
#if OSL_DEBUG_LEVEL > 2
// Let's figure out what is really going on here
{
fprintf( stderr, "= cpp_mediate () =\nGPR's (%d): ", 6 );
for ( unsigned int i = 0; i < 6; ++i )
fprintf( stderr, "0x%lx, ", gpreg[i] );
fprintf( stderr, "\n");
fprintf( stderr, "\nFPR's (%d): ", 6 );
for ( unsigned int i = 0; i < 6; ++i )
fprintf( stderr, "0x%lx (%f), ", fpreg[i], fpreg[i] );
fprintf( stderr, "\n");
}
#endif
// 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 & 0x80000000 )
{
nFunctionIndex &= 0x7fffffff;
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();
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)),
(XInterface *)pCppI);
}
// determine called method
assert(nVtableCall < 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(),
((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( "no member description found!", (XInterface *)pCppI );
}
}
return eRet;
}
long cpp_vtable_call(long r16, long r17, long r18, long r19, long r20, long r21, long firstonstack)
{
register long r1 asm("$1");
sal_uInt64 nOffsetAndIndex = r1;
long sp = (long)&firstonstack;
sal_uInt64 gpreg[axp::MAX_GPR_REGS];
gpreg[0] = r16;
gpreg[1] = r17;
gpreg[2] = r18;
gpreg[3] = r19;
gpreg[4] = r20;
gpreg[5] = r21;
double fpreg[axp::MAX_SSE_REGS];
register double f16 asm("$f16"); fpreg[0] = f16;
register double f17 asm("$f17"); fpreg[1] = f17;
register double f18 asm("$f18"); fpreg[2] = f18;
register double f19 asm("$f19"); fpreg[3] = f19;
register double f20 asm("$f20"); fpreg[4] = f20;
register double f21 asm("$f21"); fpreg[5] = f21;
volatile long nRegReturn[1];
#if OSL_DEBUG_LEVEL > 2
fprintf(stderr, "before mediate with %lx\n",nOffsetAndIndex);
fprintf(stderr, "non-doubles are %x %x %x %x %x %x\n", gpreg[0], gpreg[1], gpreg[2], gpreg[3], gpreg[4], gpreg[5]);
fprintf(stderr, "doubles are %f %f %f %f %f %f\n", fpreg[0], fpreg[1], fpreg[2], fpreg[3], fpreg[4], fpreg[5]);
#endif
typelib_TypeClass aType =
cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, (void**)sp,
(sal_Int64*)nRegReturn );
#if OSL_DEBUG_LEVEL > 2
fprintf(stderr, "after mediate ret is %lx %ld\n", nRegReturn[0], nRegReturn[0]);
#endif
switch( aType )
{
case typelib_TypeClass_BOOLEAN:
case typelib_TypeClass_BYTE:
nRegReturn[0] = (unsigned long)(*(unsigned char *)nRegReturn);
break;
case typelib_TypeClass_CHAR:
case typelib_TypeClass_UNSIGNED_SHORT:
case typelib_TypeClass_SHORT:
nRegReturn[0] = (unsigned long)(*(unsigned short *)nRegReturn);
break;
case typelib_TypeClass_ENUM:
case typelib_TypeClass_UNSIGNED_LONG:
case typelib_TypeClass_LONG:
nRegReturn[0] = (unsigned long)(*(unsigned int *)nRegReturn);
break;
case typelib_TypeClass_VOID:
default:
break;
case typelib_TypeClass_FLOAT:
{
double tmp = (double) (*((float *)nRegReturn));
(*((double *) nRegReturn)) = tmp;
}
//deliberate fall through
case typelib_TypeClass_DOUBLE:
__asm__ ( "ldt $f0,%0\n\t"
: : "m" (*((double*)nRegReturn)) : "$f0");
break;
}
return nRegReturn[0];
}
const int codeSnippetSize = 32;
unsigned char *codeSnippet( unsigned char * code, sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, bool simple_ret_type )
{
if (! simple_ret_type)
nFunctionIndex |= 0x80000000;
unsigned char * p = code;
*(unsigned int*)&p[0] = 0x47fb0401; /* mov $27,$1 */
*(unsigned int*)&p[4] = 0xa43b0010; /* ldq $1,16($27) */
*(unsigned int*)&p[8] = 0xa77b0018; /* ldq $27,24($27) */
*(unsigned int*)&p[12] = 0x6bfb0000; /* jmp $31,($27),0 */
*(unsigned int*)&p[16] = nFunctionIndex;
*(unsigned int*)&p[20] = nVtableOffset;
*(unsigned long*)&p[24] = (unsigned long)cpp_vtable_call;
return (code + codeSnippetSize);
}
}
void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const *, unsigned char const *)
{
//http://www.gnu.org/software/lightning/manual/html_node/Standard-functions.html
__asm__ __volatile__("call_pal 0x86");
}
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 = 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;
#if OSL_DEBUG_LEVEL > 2
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]);
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:
assert(false);
break;
}
TYPELIB_DANGER_RELEASE(member);
}
return code;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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