Add OSX@PowerPC support to UNO/C++ bridge

It is the same as Linux@PowerPC 32-bit (cp -r gcc3_linux_powerpc gcc3_macosx_powerpc),
with differences applied:
* Use 13 FP registers and correct 'codeSnippetSize' (8*4 + 13*8 = 136).
* Use "frame pointer + 24", not "+8".
* Don't USE_DOUBLE_MMAP and 'sal_PtrDiff writetoexecdiff'.
* Don't use "__NO_FPRS__", OS X capable PowerPC machines all have FPRs.
* Use "rN"/"fN" syntax to avoid "Parameter syntax error" errors.
* Include sys/types.h, sys/malloc.h instead of malloc.h;
don't include string.h.

Change-Id: I5b251c65466af2a06bd309d3a7b1aaf26ac12656
Reviewed-on: https://gerrit.libreoffice.org/7072
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Tested-by: Norbert Thiebaud <nthiebaud@gmail.com>

4 files changed, 1748 insertions, 0 deletions

diff --git a/bridges/source/cpp_uno/gcc3_macosx_powerpc/cpp2uno.cxx b/bridges/source/cpp_uno/gcc3_macosx_powerpc/cpp2uno.cxx
new file mode 100644
index 000000000000..c48d1a55e205
--- /dev/null
+++ b/bridges/source/cpp_uno/gcc3_macosx_powerpc/cpp2uno.cxx
@@ -0,0 +1,737 @@
+/* -*- 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 <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"
+
+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
+
+    // handle optional return pointer
+    if (pReturnTypeDescr)
+    {
+        if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
+        {
+            pUnoReturn = pRegisterReturn; // direct way for simple types
+        }
+        else // complex return via ptr (pCppReturn)
+        {
+            pCppReturn = *gpreg;
+                        gpreg++; //ovrflw++;
+                        ng++;
+
+            pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
+                          ? alloca( pReturnTypeDescr->nSize )
+                          : pCppReturn); // direct way
+        }
+    }
+    // pop "this"
+    gpreg++; //ovrflw++;
+    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;
+    // 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 ))
+                // value
+        {
+
+            switch (pParamTypeDescr->eTypeClass)
+            {
+
+              case typelib_TypeClass_DOUBLE:
+               if (nf < 13) {
+                  pCppArgs[nPos] = fpreg;
+                  pUnoArgs[nPos] = fpreg;
+                  nf++;
+                  fpreg += 2;
+               } else {
+                if (((long)ovrflw) & 4) ovrflw++;
+                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 < 13) {
+                   float tmp = (float) (*((double *)fpreg));
+                   (*((float *) fpreg)) = tmp;
+                   pCppArgs[nPos] = fpreg;
+                   pUnoArgs[nPos] = fpreg;
+                   nf++;
+                   fpreg += 2;
+                } else {
+#if 0 /* abi is not being followed correctly */
+                  if (((long)ovrflw) & 4) ovrflw++;
+                  float tmp = (float) (*((double *)ovrflw));
+                  (*((float *) ovrflw)) = tmp;
+                  pCppArgs[nPos] = ovrflw;
+                  pUnoArgs[nPos] = ovrflw;
+                  ovrflw += 2;
+#else
+                  pCppArgs[nPos] = ovrflw;
+                  pUnoArgs[nPos] = ovrflw;
+                  ovrflw += 1;
+#endif
+                }
+                break;
+
+            case typelib_TypeClass_HYPER:
+            case typelib_TypeClass_UNSIGNED_HYPER:
+             if (ng & 1) {
+                ng++;
+                gpreg++;
+             }
+             if (ng < 8) {
+                pCppArgs[nPos] = gpreg;
+                pUnoArgs[nPos] = gpreg;
+                ng += 2;
+                gpreg += 2;
+             } else {
+                if (((long)ovrflw) & 4) ovrflw++;
+                pCppArgs[nPos] = ovrflw;
+                pUnoArgs[nPos] = ovrflw;
+                ovrflw += 2;
+              }
+              break;
+
+            case typelib_TypeClass_BYTE:
+            case typelib_TypeClass_BOOLEAN:
+             if (ng < 8) {
+                  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 < 8) {
+                  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 < 8) {
+                  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 < 8) {
+                  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 );
+                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 );
+            }
+        }
+    }
+
+    // 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_Int32 nFunctionIndex,
+        sal_Int32 nVtableOffset,
+        void ** gpreg, void ** fpreg, void ** ovrflw,
+    sal_Int64 * pRegisterReturn /* space for register return */ )
+{
+    OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
+
+    // gpreg:  [ret *], this, [other gpr params]
+    // fpreg:  [fpr params]
+    // ovrflw: [gpr or fpr params (properly aligned)]
+
+        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();
+
+    OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
+    if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
+    {
+        throw RuntimeException(
+            OUString( "illegal vtable index!" ),
+            (XInterface *)pThis );
+    }
+
+    // determine called method
+    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(
+            OUString( "no member description found!" ),
+            (XInterface *)pThis );
+    }
+    }
+
+    return eRet;
+}
+
+//==================================================================================================
+/**
+ * is called on incoming vtable calls
+ * (called by asm snippets)
+ */
+static void cpp_vtable_call( int nFunctionIndex, int nVtableOffset, void** gpregptr, void** fpregptr, void** ovrflw)
+{
+    sal_Int32     gpreg[8];
+    memcpy(gpreg, gpregptr, 32);
+
+    double        fpreg[13];
+    memcpy(fpreg, fpregptr, 13*8);
+
+    volatile long nRegReturn[2];
+
+        // fprintf(stderr,"in cpp_vtable_call nFunctionIndex is %x\n",nFunctionIndex);
+        // fprintf(stderr,"in cpp_vtable_call nVtableOffset is %x\n",nVtableOffset);
+        // fflush(stderr);
+
+    typelib_TypeClass aType =
+             cpp_mediate( nFunctionIndex, nVtableOffset, (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:
+                case typelib_TypeClass_BYTE:
+                  __asm__( "lbz r3,%0" : :
+                           "m"(nRegReturn[0]) );
+                  break;
+
+                case typelib_TypeClass_CHAR:
+                case typelib_TypeClass_SHORT:
+                case typelib_TypeClass_UNSIGNED_SHORT:
+                  __asm__( "lhz r3,%0" : :
+                           "m"(nRegReturn[0]) );
+                  break;
+
+        case typelib_TypeClass_FLOAT:
+                  __asm__( "lfs f1,%0" : :
+                           "m" (*((float*)nRegReturn)) );
+          break;
+
+        case typelib_TypeClass_DOUBLE:
+          __asm__( "lfd f1,%0" : :
+                           "m" (*((double*)nRegReturn)) );
+          break;
+
+        case typelib_TypeClass_HYPER:
+        case typelib_TypeClass_UNSIGNED_HYPER:
+          __asm__( "lwz r4,%0" : :
+                           "m"(nRegReturn[1]) );
+          // no break, fall through
+
+        default:
+          __asm__( "lwz r3,%0" : :
+                           "m"(nRegReturn[0]) );
+          break;
+    }
+}
+
+
+int const codeSnippetSize = 136;
+
+unsigned char *  codeSnippet( unsigned char * code, sal_Int32 functionIndex, sal_Int32 vtableOffset,
+                              bool simpleRetType)
+{
+
+  // fprintf(stderr,"in codeSnippet functionIndex is %x\n", functionIndex);
+  // fprintf(stderr,"in codeSnippet vtableOffset is %x\n", vtableOffset);
+  // fflush(stderr);
+
+    if (! simpleRetType )
+        functionIndex |= 0x80000000;
+
+    unsigned long * p = (unsigned long *) code;
+
+    // OSL_ASSERT( sizeof (long) == 4 );
+    OSL_ASSERT((((unsigned long)code) & 0x3) == 0 );  //aligned to 4 otherwise a mistake
+
+    /* generate this code */
+    // # so first save gpr 3 to gpr 10 (aligned to 4)
+    //  stw r3,-2048(r1)
+    //  stw r4,-2044(r1)
+    //  stw r5,-2040(r1)
+    //  stw r6,-2036(r1)
+    //  stw r7,-2032(r1)
+    //  stw r8,-2028(r1)
+    //  stw r9,-2024(r1)
+    //  stw r10,-2020(r1)
+
+
+    // # next save fpr 1 to fpr 13 (aligned to 8)
+    // if dedicated floating point registers are used
+    //  stfd    f1,-2016(r1)
+    //  stfd    f2,-2008(r1)
+    //  stfd    f3,-2000(r1)
+    //  stfd    f4,-1992(r1)
+    //  stfd    f5,-1984(r1)
+    //  stfd    f6,-1976(r1)
+    //  stfd    f7,-1968(r1)
+    //  stfd    f8,-1960(r1)
+    //  stfd    f9,-1952(r1)
+    //  stfd   f10,-1944(r1)
+    //  stfd   f11,-1936(r1)
+    //  stfd   f12,-1928(r1)
+    //  stfd   f13,-1920(r1)
+
+    // # now here is where cpp_vtable_call must go
+    //  lis r3,0xdead
+    //  ori r3,r3,0xbeef
+    //  mtctr   r3
+
+    // # now load up the functionIndex
+    //  lis r3,0xdead
+    //  ori r3,r3,0xbeef
+
+    // # now load up the vtableOffset
+    //  lis r4,0xdead
+    //  ori r4,r4,0xbeef
+
+    // #now load up the pointer to the saved gpr registers
+    //  addi    r5,r1,-2048
+
+    // #now load up the pointer to the saved fpr registers
+    //  addi    r6,r1,-2016
+    // if no dedicated floating point registers are used than we have NULL
+    // pointer there
+    //  li      r6, 0
+    //
+
+    // #now load up the pointer to the overflow call stack
+    //  addi    r7,r1,24 # frame pointer + 24
+    //  bctr
+
+      * p++ = 0x9061f800;
+      * p++ = 0x9081f804;
+      * p++ = 0x90a1f808;
+      * p++ = 0x90c1f80c;
+      * p++ = 0x90e1f810;
+      * p++ = 0x9101f814;
+      * p++ = 0x9121f818;
+      * p++ = 0x9141f81c;
+
+      * p++ = 0xd821f820;
+      * p++ = 0xd841f828;
+      * p++ = 0xd861f830;
+      * p++ = 0xd881f838;
+      * p++ = 0xd8a1f840;
+      * p++ = 0xd8c1f848;
+      * p++ = 0xd8e1f850;
+      * p++ = 0xd901f858;
+      * p++ = 0xd921f860;
+      * p++ = 0xd941f868;
+      * p++ = 0xd961f870;
+      * p++ = 0xd981f878;
+      * p++ = 0xd9a1f880;
+
+      * p++ = 0x3c600000 | (((unsigned long)cpp_vtable_call) >> 16);
+      * p++ = 0x60630000 | (((unsigned long)cpp_vtable_call) & 0x0000FFFF);
+      * p++ = 0x7c6903a6;
+      * p++ = 0x3c600000 | (((unsigned long)functionIndex) >> 16);
+      * p++ = 0x60630000 | (((unsigned long)functionIndex) & 0x0000FFFF);
+      * p++ = 0x3c800000 | (((unsigned long)vtableOffset) >> 16);
+      * p++ = 0x60840000 | (((unsigned long)vtableOffset) & 0x0000FFFF);
+      * p++ = 0x38a1f800;
+      * p++ = 0x38c1f820;
+      * p++ = 0x38e10018;
+      * p++ = 0x4e800420;
+      return (code + codeSnippetSize);
+
+}
+
+
+}
+
+void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const * bptr, unsigned char const * eptr)
+{
+    int const lineSize = 32;
+    for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) {
+        __asm__ volatile ("dcbst 0, %0" : : "r"(p) : "memory");
+    }
+    __asm__ volatile ("sync" : : : "memory");
+    for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) {
+        __asm__ volatile ("icbi 0, %0" : : "r"(p) : "memory");
+    }
+    __asm__ volatile ("isync" : : : "memory");
+}
+
+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,
+    typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
+    sal_Int32 functionCount, sal_Int32 vtableOffset)
+{
+     (*slots) -= functionCount;
+     Slot * s = *slots;
+  // fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
+  // fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
+  // fflush(stderr);
+
+    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;
+            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;
+                code = codeSnippet(code, functionOffset++, vtableOffset, true);
+            }
+            break;
+
+        case typelib_TypeClass_INTERFACE_METHOD:
+            (s++)->fn = code;
+            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;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/bridges/source/cpp_uno/gcc3_macosx_powerpc/except.cxx b/bridges/source/cpp_uno/gcc3_macosx_powerpc/except.cxx
new file mode 100644
index 000000000000..bb5057bf7f80
--- /dev/null
+++ b/bridges/source/cpp_uno/gcc3_macosx_powerpc/except.cxx
@@ -0,0 +1,277 @@
+/* -*- 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 <stdio.h>
+#include <dlfcn.h>
+#include <cxxabi.h>
+#include <boost/unordered_map.hpp>
+
+#include <rtl/strbuf.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <osl/diagnose.h>
+#include <osl/mutex.hxx>
+
+#include <com/sun/star/uno/genfunc.hxx>
+#include <typelib/typedescription.hxx>
+#include <uno/any2.h>
+
+#include "share.hxx"
+
+
+using namespace ::std;
+using namespace ::osl;
+using namespace ::rtl;
+using namespace ::com::sun::star::uno;
+using namespace ::__cxxabiv1;
+
+
+namespace CPPU_CURRENT_NAMESPACE
+{
+
+void dummy_can_throw_anything( char const * )
+{
+}
+
+//==================================================================================================
+static OUString toUNOname( char const * p ) SAL_THROW(())
+{
+#if OSL_DEBUG_LEVEL > 1
+    char const * start = p;
+#endif
+
+    // example: N3com3sun4star4lang24IllegalArgumentExceptionE
+
+    OUStringBuffer buf( 64 );
+    OSL_ASSERT( 'N' == *p );
+    ++p; // skip N
+
+    while ('E' != *p)
+    {
+        // read chars count
+        long n = (*p++ - '0');
+        while ('0' <= *p && '9' >= *p)
+        {
+            n *= 10;
+            n += (*p++ - '0');
+        }
+        buf.appendAscii( p, n );
+        p += n;
+        if ('E' != *p)
+            buf.append( (sal_Unicode)'.' );
+    }
+
+#if OSL_DEBUG_LEVEL > 1
+    OUString ret( buf.makeStringAndClear() );
+    OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) );
+    fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() );
+    return ret;
+#else
+    return buf.makeStringAndClear();
+#endif
+}
+
+//==================================================================================================
+class RTTI
+{
+    typedef boost::unordered_map< OUString, type_info *, OUStringHash > t_rtti_map;
+
+    Mutex m_mutex;
+    t_rtti_map m_rttis;
+    t_rtti_map m_generatedRttis;
+
+    void * m_hApp;
+
+public:
+    RTTI() SAL_THROW(());
+    ~RTTI() SAL_THROW(());
+
+    type_info * getRTTI( typelib_CompoundTypeDescription * ) SAL_THROW(());
+};
+//__________________________________________________________________________________________________
+RTTI::RTTI() SAL_THROW(())
+    : m_hApp( dlopen( 0, RTLD_LAZY ) )
+{
+}
+//__________________________________________________________________________________________________
+RTTI::~RTTI() SAL_THROW(())
+{
+    dlclose( m_hApp );
+}
+
+//__________________________________________________________________________________________________
+type_info * RTTI::getRTTI( typelib_CompoundTypeDescription *pTypeDescr ) SAL_THROW(())
+{
+    type_info * rtti;
+
+    OUString const & unoName = *(OUString const *)&pTypeDescr->aBase.pTypeName;
+
+    MutexGuard guard( m_mutex );
+    t_rtti_map::const_iterator iRttiFind( m_rttis.find( unoName ) );
+    if (iRttiFind == m_rttis.end())
+    {
+        // RTTI symbol
+        OStringBuffer buf( 64 );
+        buf.append( "_ZTIN" );
+        sal_Int32 index = 0;
+        do
+        {
+            OUString token( unoName.getToken( 0, '.', index ) );
+            buf.append( token.getLength() );
+            OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) );
+            buf.append( c_token );
+        }
+        while (index >= 0);
+        buf.append( 'E' );
+
+        OString symName( buf.makeStringAndClear() );
+        rtti = (type_info *)dlsym( m_hApp, symName.getStr() );
+
+        if (rtti)
+        {
+            pair< t_rtti_map::iterator, bool > insertion(
+                m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
+            OSL_ENSURE( insertion.second, "### inserting new rtti failed?!" );
+        }
+        else
+        {
+            // try to lookup the symbol in the generated rtti map
+            t_rtti_map::const_iterator iFind( m_generatedRttis.find( unoName ) );
+            if (iFind == m_generatedRttis.end())
+            {
+                // we must generate it !
+                // symbol and rtti-name is nearly identical,
+                // the symbol is prefixed with _ZTI
+                char const * rttiName = symName.getStr() +4;
+#if OSL_DEBUG_LEVEL > 1
+                fprintf( stderr,"generated rtti for %s\n", rttiName );
+#endif
+                if (pTypeDescr->pBaseTypeDescription)
+                {
+                    // ensure availability of base
+                    type_info * base_rtti = getRTTI(
+                        (typelib_CompoundTypeDescription *)pTypeDescr->pBaseTypeDescription );
+                    rtti = new __si_class_type_info(
+                        strdup( rttiName ), (__class_type_info *)base_rtti );
+                }
+                else
+                {
+                    // this class has no base class
+                    rtti = new __class_type_info( strdup( rttiName ) );
+                }
+
+                pair< t_rtti_map::iterator, bool > insertion(
+                    m_generatedRttis.insert( t_rtti_map::value_type( unoName, rtti ) ) );
+                OSL_ENSURE( insertion.second, "### inserting new generated rtti failed?!" );
+            }
+            else // taking already generated rtti
+            {
+                rtti = iFind->second;
+            }
+        }
+    }
+    else
+    {
+        rtti = iRttiFind->second;
+    }
+
+    return rtti;
+}
+
+//--------------------------------------------------------------------------------------------------
+static void deleteException( void * pExc )
+{
+    __cxa_exception const * header = ((__cxa_exception const *)pExc - 1);
+    typelib_TypeDescription * pTD = 0;
+    OUString unoName( toUNOname( header->exceptionType->name() ) );
+    ::typelib_typedescription_getByName( &pTD, unoName.pData );
+    OSL_ENSURE( pTD, "### unknown exception type! leaving out destruction => leaking!!!" );
+    if (pTD)
+    {
+        ::uno_destructData( pExc, pTD, cpp_release );
+        ::typelib_typedescription_release( pTD );
+    }
+}
+
+//==================================================================================================
+void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp )
+{
+    void * pCppExc;
+    type_info * rtti;
+
+    {
+    // construct cpp exception object
+    typelib_TypeDescription * pTypeDescr = 0;
+    TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType );
+    OSL_ASSERT( pTypeDescr );
+    if (! pTypeDescr)
+        terminate();
+
+    pCppExc = __cxa_allocate_exception( pTypeDescr->nSize );
+    ::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp );
+
+    // destruct uno exception
+    ::uno_any_destruct( pUnoExc, 0 );
+    // avoiding locked counts
+    static RTTI * s_rtti = 0;
+    if (! s_rtti)
+    {
+        MutexGuard guard( Mutex::getGlobalMutex() );
+        if (! s_rtti)
+        {
+#ifdef LEAK_STATIC_DATA
+            s_rtti = new RTTI();
+#else
+            static RTTI rtti_data;
+            s_rtti = &rtti_data;
+#endif
+        }
+    }
+    rtti = (type_info *)s_rtti->getRTTI( (typelib_CompoundTypeDescription *) pTypeDescr );
+    TYPELIB_DANGER_RELEASE( pTypeDescr );
+    OSL_ENSURE( rtti, "### no rtti for throwing exception!" );
+    if (! rtti)
+        terminate();
+    }
+
+    __cxa_throw( pCppExc, rtti, deleteException );
+}
+
+//==================================================================================================
+void fillUnoException( __cxa_exception * header, uno_Any * pExc, uno_Mapping * pCpp2Uno )
+{
+    OSL_ENSURE( header, "### no exception header!!!" );
+    if (! header)
+        terminate();
+
+    typelib_TypeDescription * pExcTypeDescr = 0;
+    OUString unoName( toUNOname( header->exceptionType->name() ) );
+    ::typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData );
+    OSL_ENSURE( pExcTypeDescr, "### can not get type description for exception!!!" );
+    if (! pExcTypeDescr)
+        terminate();
+
+    // construct uno exception any
+    ::uno_any_constructAndConvert( pExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno );
+    ::typelib_typedescription_release( pExcTypeDescr );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/bridges/source/cpp_uno/gcc3_macosx_powerpc/share.hxx b/bridges/source/cpp_uno/gcc3_macosx_powerpc/share.hxx
new file mode 100644
index 000000000000..0bc37f6ad4bf
--- /dev/null
+++ b/bridges/source/cpp_uno/gcc3_macosx_powerpc/share.hxx
@@ -0,0 +1,85 @@
+/* -*- 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 "uno/mapping.h"
+
+#include <typeinfo>
+#include <exception>
+#include <cstddef>
+
+namespace CPPU_CURRENT_NAMESPACE
+{
+
+  void dummy_can_throw_anything( char const * );
+
+
+// ----- following decl from libstdc++-v3/libsupc++/unwind-cxx.h and unwind.h
+
+struct _Unwind_Exception
+{
+    unsigned exception_class __attribute__((__mode__(__DI__)));
+    void * exception_cleanup;
+    unsigned private_1 __attribute__((__mode__(__word__)));
+    unsigned private_2 __attribute__((__mode__(__word__)));
+} __attribute__((__aligned__));
+
+struct __cxa_exception
+{
+    ::std::type_info *exceptionType;
+    void (*exceptionDestructor)(void *);
+
+    ::std::unexpected_handler unexpectedHandler;
+    ::std::terminate_handler terminateHandler;
+
+    __cxa_exception *nextException;
+
+    int handlerCount;
+
+    int handlerSwitchValue;
+    const unsigned char *actionRecord;
+    const unsigned char *languageSpecificData;
+    void *catchTemp;
+    void *adjustedPtr;
+
+    _Unwind_Exception unwindHeader;
+};
+
+extern "C" void *__cxa_allocate_exception(
+    std::size_t thrown_size ) throw();
+extern "C" void __cxa_throw (
+    void *thrown_exception, std::type_info *tinfo, void (*dest) (void *) ) __attribute__((noreturn));
+
+struct __cxa_eh_globals
+{
+    __cxa_exception *caughtExceptions;
+    unsigned int uncaughtExceptions;
+};
+extern "C" __cxa_eh_globals *__cxa_get_globals () throw();
+
+// -----
+
+//==================================================================================================
+void raiseException(
+    uno_Any * pUnoExc, uno_Mapping * pUno2Cpp );
+//==================================================================================================
+void fillUnoException(
+    __cxa_exception * header, uno_Any *, uno_Mapping * pCpp2Uno );
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/bridges/source/cpp_uno/gcc3_macosx_powerpc/uno2cpp.cxx b/bridges/source/cpp_uno/gcc3_macosx_powerpc/uno2cpp.cxx
new file mode 100644
index 000000000000..6a4ab3ff5cf6
--- /dev/null
+++ b/bridges/source/cpp_uno/gcc3_macosx_powerpc/uno2cpp.cxx
@@ -0,0 +1,649 @@
+/* -*- 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 <sys/types.h>
+#include <sys/malloc.h>
+
+#include <com/sun/star/uno/genfunc.hxx>
+#include <uno/data.h>
+
+#include "bridges/cpp_uno/shared/bridge.hxx"
+#include "bridges/cpp_uno/shared/types.hxx"
+#include "bridges/cpp_uno/shared/unointerfaceproxy.hxx"
+#include "bridges/cpp_uno/shared/vtables.hxx"
+
+#include "share.hxx"
+
+
+using namespace ::rtl;
+using namespace ::com::sun::star::uno;
+
+namespace
+{
+
+
+//==================================================================================================
+static void callVirtualMethod(
+    void * pAdjustedThisPtr,
+    sal_Int32 nVtableIndex,
+    void * pRegisterReturn,
+    typelib_TypeClass eReturnType,
+    char * pPT,
+    sal_Int32 * pStackLongs,
+    sal_Int32 nStackLongs)
+{
+
+  // parameter list is mixed list of * and values
+  // reference parameters are pointers
+
+  // the basic idea here is to use gpr[8] as a storage area for
+  // the future values of registers r3 to r10 needed for the call,
+  // and similarly fpr[13] as a storage area for the future values
+  // of floating point registers f1 to f13
+
+     unsigned long * mfunc;        // actual function to be invoked
+     int gpr[8];                   // storage for gp registers, map to r3-r10
+     int off;                      // offset used to find function
+
+     double fpr[13];               // storage for fp registers, map to f1-f13
+     int f;                        // number of fprs mapped so far
+     double dret;                  // temporary function return values
+
+     int n;                        // number of gprs mapped so far
+     long *p;                      // pointer to parameter overflow area
+     int c;                        // character of parameter type being decoded
+     int iret, iret2;
+
+     // Because of the Power PC calling conventions we could be passing
+     // parameters in both register types and on the stack. To create the
+     // stack parameter area we need we now simply allocate local
+     // variable storage param[] that is at least the size of the parameter stack
+     // (more than enough space) which we can overwrite the parameters into.
+
+     // Note: This keeps us from having to decode the signature twice and
+     // prevents problems with later local variables.
+
+     // Note: could require up to  2*nStackLongs words of parameter stack area
+     // if the call has many float parameters (i.e. floats take up only 1
+     // word on the stack but double takes 2 words in parameter area in the
+     // stack frame .
+
+     // Update! floats on the outgoing parameter stack only take up 1 word
+     // (stfs is used) which is not correct according to the ABI but we
+     // will match what the compiler does until this is figured out
+
+     // this grows the current stack to the appropriate size
+     // and sets the outgoing stack pointer p to the right place
+     __asm__ __volatile__ (
+          "rlwinm  %0,%0,3,3,28\n\t"
+          "addi    %0,%0,22\n\t"
+          "rlwinm  %0,%0,0,4,28\n\t"
+          "lwz     r0,0(r1)\n\t"
+          "subf    r1,%0,r1\n\t"
+          "stw     r0,0(r1)\n\t"
+          : : "r" (nStackLongs) : "0" );
+
+     __asm__ __volatile__ ( "addi %0,r1,24" : "=r" (p) : );
+
+     // never called
+     // if (! pAdjustedThisPtr ) dummy_can_throw_anything("xxx"); // address something
+
+
+     // now begin to load the C++ function arguments into storage
+     n = 0;
+     f = 0;
+
+     // now we need to parse the entire signature string */
+     // until we get the END indicator */
+
+     // treat complex return pointer like any other parameter //
+
+#if OSL_DEBUG_LEVEL > 2
+     /* Let's figure out what is really going on here*/
+     fprintf(stderr,"callVirtualMethod parameters string is %s\n",pPT);
+     int k = nStackLongs;
+     long * q = (long *)pStackLongs;
+     while (k > 0) {
+       fprintf(stderr,"uno stack is: %x\n",*q);
+       k--;
+       q++;
+     }
+#endif
+
+     /* parse the argument list up to the ending ) */
+     while (*pPT != 'X') {
+       c = *pPT;
+       switch (c) {
+       case 'D':                   /* type is double */
+            if (f < 13) {
+               fpr[f++] = *((double *)pStackLongs);   /* store in register */
+        } else {
+           if (((long) p) & 4)
+              p++;
+               *p++ = *pStackLongs;       /* or on the parameter stack */
+               *p++ = *(pStackLongs + 1);
+        }
+            pStackLongs += 2;
+            break;
+
+       case 'F':                   /* type is float */
+     /* this assumes that floats are stored as 1 32 bit word on param
+        stack and that if passed in parameter stack to C, should be
+        as double word.
+
+            Whoops: the abi is not actually followed by gcc, need to
+            store floats as a *single* word on outgoing parameter stack
+            to match what gcc actually does
+     */
+        if (f < 13) {
+               fpr[f++] = *((float *)pStackLongs);
+        } else {
+#if 0 /* if abi were followed */
+           if (((long) p) & 4)
+              p++;
+           *((double *)p) = *((float *)pStackLongs);
+               p += 2;
+#else
+           *((float *)p) = *((float *)pStackLongs);
+               p += 1;
+#endif
+        }
+            pStackLongs += 1;
+            break;
+
+       case 'H':                /* type is long long */
+            if (n & 1) n++;     /* note even elements gpr[] will map to
+                                   odd registers*/
+            if (n <= 6) {
+               gpr[n++] = *pStackLongs;
+               gpr[n++] = *(pStackLongs+1);
+        } else {
+           if (((long) p) & 4)
+              p++;
+               *p++ = *pStackLongs;
+               *p++ = *(pStackLongs+1);
+        }
+            pStackLongs += 2;
+            break;
+
+       case 'S':
+            if (n < 8) {
+               gpr[n++] = *((unsigned short*)pStackLongs);
+        } else {
+               *p++ = *((unsigned short *)pStackLongs);
+        }
+            pStackLongs += 1;
+            break;
+
+       case 'B':
+            if (n < 8) {
+               gpr[n++] = *((char *)pStackLongs);
+        } else {
+               *p++ = *((char *)pStackLongs);
+        }
+            pStackLongs += 1;
+            break;
+
+       default:
+            if (n < 8) {
+               gpr[n++] = *pStackLongs;
+        } else {
+               *p++ = *pStackLongs;
+        }
+            pStackLongs += 1;
+            break;
+       }
+       pPT++;
+     }
+
+     /* figure out the address of the function we need to invoke */
+     off = nVtableIndex;
+     off = off * 4;                         // 4 bytes per slot
+     mfunc = *((unsigned long **)pAdjustedThisPtr);    // get the address of the vtable
+     mfunc = (unsigned long *)((char *)mfunc + off); // get the address from the vtable entry at offset
+     mfunc = *((unsigned long **)mfunc);                 // the function is stored at the address
+     typedef void (*FunctionCall)(sal_uInt32, sal_uInt32, sal_uInt32, sal_uInt32, sal_uInt32, sal_uInt32, sal_uInt32, sal_uInt32);
+     FunctionCall ptr = (FunctionCall)mfunc;
+
+    /* Set up the machine registers and invoke the function */
+
+    __asm__ __volatile__ (
+        "lwz   r3,  0(%0)\n\t"
+        "lwz   r4,  4(%0)\n\t"
+        "lwz   r5,  8(%0)\n\t"
+        "lwz   r6,  12(%0)\n\t"
+        "lwz   r7,  16(%0)\n\t"
+        "lwz   r8,  20(%0)\n\t"
+        "lwz   r9,  24(%0)\n\t"
+        "lwz   r10, 28(%0)\n\t"
+        "lfd   f1,  0(%1)\n\t"
+        "lfd   f2,  8(%1)\n\t"
+        "lfd   f3,  16(%1)\n\t"
+        "lfd   f4,  24(%1)\n\t"
+        "lfd   f5,  32(%1)\n\t"
+        "lfd   f6,  40(%1)\n\t"
+        "lfd   f7,  48(%1)\n\t"
+        "lfd   f8,  56(%1)\n\t"
+        "lfd   f9,  64(%1)\n\t"
+        "lfd   f10, 72(%1)\n\t"
+        "lfd   f11, 80(%1)\n\t"
+        "lfd   f12, 88(%1)\n\t"
+        "lfd   f13, 96(%1)\n\t"
+        : : "r" (gpr), "r" (fpr)
+        : "0", "3", "4", "5", "6", "7", "8", "9", "10",
+          "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13"
+    );
+
+    // tell gcc that r3 to r10 are not available to it for doing the TOC and exception munge on the func call
+    register sal_uInt32 r3 __asm__("r3");
+    register sal_uInt32 r4 __asm__("r4");
+    register sal_uInt32 r5 __asm__("r5");
+    register sal_uInt32 r6 __asm__("r6");
+    register sal_uInt32 r7 __asm__("r7");
+    register sal_uInt32 r8 __asm__("r8");
+    register sal_uInt32 r9 __asm__("r9");
+    register sal_uInt32 r10 __asm__("r10");
+
+    (*ptr)(r3, r4, r5, r6, r7, r8, r9, r10);
+
+    __asm__ __volatile__ (
+       "mr     %0,r3\n\t"
+       "mr     %1,r4\n\t"
+       "fmr    %2,f1\n\t"
+       : "=r" (iret), "=r" (iret2), "=f" (dret)
+       : );
+
+    switch( eReturnType )
+    {
+        case typelib_TypeClass_HYPER:
+        case typelib_TypeClass_UNSIGNED_HYPER:
+            ((long*)pRegisterReturn)[0] = iret;
+            ((long*)pRegisterReturn)[1] = iret2;
+        case typelib_TypeClass_LONG:
+        case typelib_TypeClass_UNSIGNED_LONG:
+        case typelib_TypeClass_ENUM:
+            ((long*)pRegisterReturn)[0] = iret;
+            break;
+        case typelib_TypeClass_CHAR:
+        case typelib_TypeClass_SHORT:
+        case typelib_TypeClass_UNSIGNED_SHORT:
+            *(unsigned short*)pRegisterReturn = (unsigned short)iret;
+            break;
+        case typelib_TypeClass_BOOLEAN:
+        case typelib_TypeClass_BYTE:
+            *(unsigned char*)pRegisterReturn = (unsigned char)iret;
+            break;
+        case typelib_TypeClass_FLOAT:
+            *(float*)pRegisterReturn = (float)dret;
+            break;
+        case typelib_TypeClass_DOUBLE:
+            *(double*)pRegisterReturn = dret;
+            break;
+        default:
+            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;
+
+        // need to know parameter types for callVirtualMethod so generate a signature string
+        char * pParamType = (char *) alloca(nParams+2);
+        char * pPT = pParamType;
+
+    // return
+    typelib_TypeDescription * pReturnTypeDescr = 0;
+    TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
+    // OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" );
+
+    void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
+
+    if (pReturnTypeDescr)
+    {
+        if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
+        {
+            pCppReturn = pUnoReturn; // direct way for simple types
+        }
+        else
+        {
+            // complex return via ptr
+            pCppReturn = *(void **)pCppStack =
+                              (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
+                   ? alloca( pReturnTypeDescr->nSize ): pUnoReturn); // direct way
+                        *pPT++ = 'I'; //signify that a complex return type on stack
+            pCppStack += sizeof(void *);
+        }
+    }
+    // push this
+        void* pAdjustedThisPtr = reinterpret_cast< void **>(pThis->getCppI()) + aVtableSlot.offset;
+    *(void**)pCppStack = pAdjustedThisPtr;
+    pCppStack += sizeof( void* );
+        *pPT++ = 'I';
+
+    // stack space
+    // OSL_ENSURE( 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)
+            {
+
+                          // we need to know type of each param so that we know whether to use
+                          // gpr or fpr to pass in parameters:
+                          // Key: I - int, long, pointer, etc means pass in gpr
+                          //      B - byte value passed in gpr
+                          //      S - short value passed in gpr
+                          //      F - float value pass in fpr
+                          //      D - double value pass in fpr
+                          //      H - long long int pass in proper pairs of gpr (3,4) (5,6), etc
+                          //      X - indicates end of parameter description string
+
+                  case typelib_TypeClass_LONG:
+                  case typelib_TypeClass_UNSIGNED_LONG:
+                  case typelib_TypeClass_ENUM:
+                *pPT++ = 'I';
+                break;
+                   case typelib_TypeClass_SHORT:
+                  case typelib_TypeClass_CHAR:
+                  case typelib_TypeClass_UNSIGNED_SHORT:
+                            *pPT++ = 'S';
+                            break;
+                  case typelib_TypeClass_BOOLEAN:
+                  case typelib_TypeClass_BYTE:
+                            *pPT++ = 'B';
+                            break;
+                  case typelib_TypeClass_FLOAT:
+                            *pPT++ = 'F';
+                break;
+                case typelib_TypeClass_DOUBLE:
+                *pPT++ = 'D';
+                pCppStack += sizeof(sal_Int32); // extra long
+                break;
+            case typelib_TypeClass_HYPER:
+            case typelib_TypeClass_UNSIGNED_HYPER:
+                *pPT++ = 'H';
+                pCppStack += sizeof(sal_Int32); // extra long
+            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 );
+            }
+                        // KBH: FIXME: is this the right way to pass these
+                        *pPT++='I';
+        }
+        pCppStack += sizeof(sal_Int32); // standard parameter length
+    }
+
+        // terminate the signature string
+        *pPT++='X';
+        *pPT=0;
+
+    try
+    {
+        OSL_ENSURE( !( (pCppStack - pCppStackStart ) & 3), "UNALIGNED STACK !!! (Please DO panic)" );
+        callVirtualMethod(
+            pAdjustedThisPtr, aVtableSlot.index,
+            pCppReturn, pReturnTypeDescr->eTypeClass, pParamType,
+            (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 (...)
+     {
+          // fill uno exception
+        fillUnoException( CPPU_CURRENT_NAMESPACE::__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 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()
+        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(
+            OUString("illegal member type description!"),
+            ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
+
+        Type const & rExcType = ::getCppuType( &aExc );
+        // binary identical null reference
+        ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 );
+    }
+    }
+}
+
+} } }
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */