Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 806 insertions, 0 deletions

diff --git a/bridges/source/cpp_uno/gcc3_linux_mips/cpp2uno.cxx b/bridges/source/cpp_uno/gcc3_linux_mips/cpp2uno.cxx
new file mode 100644
index 000000000..35e1f231d
--- /dev/null
+++ b/bridges/source/cpp_uno/gcc3_linux_mips/cpp2uno.cxx
@@ -0,0 +1,806 @@
+/* -*- 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 <typelib/typedescription.hxx>
+#include <uno/data.h>
+#include <osl/endian.h>
+#include "bridge.hxx"
+#include "cppinterfaceproxy.hxx"
+#include "types.hxx"
+#include "vtablefactory.hxx"
+#include "share.hxx"
+
+#include <stdio.h>
+#include <string.h>
+
+using namespace com::sun::star::uno;
+
+//#define BRDEBUG
+
+#ifdef BRDEBUG
+#include <rtl/strbuf.hxx>
+#include <rtl/ustrbuf.hxx>
+using namespace ::std;
+using namespace ::osl;
+using namespace ::rtl;
+#endif
+
+#ifndef ANDROID
+#include <sys/sysmips.h>
+#endif
+
+#ifdef ANDROID
+#include <unistd.h>
+#endif
+
+#ifdef OSL_BIGENDIAN
+#define IS_BIG_ENDIAN 1
+#else
+#define IS_BIG_ENDIAN 0
+#endif
+
+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 */ )
+  {
+    /*  Most MIPS ABIs view the arguments as a struct, of which the
+        first N words go in registers and the rest go on the stack.  If I < N, the
+        Ith word might go in Ith integer argument register or the Ith
+        floating-point one.  For these ABIs, we only need to remember the number
+        of words passed so far.  We are interested only in o32 ABI,so it is the
+        case.
+        */
+    int nw = 0; // number of words used by arguments
+
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call1\n");
+#endif
+
+    /* C++ has [ret *] or this as the first arguments, so no arguments will
+     * be passed in floating-point registers?
+     */
+    //int int_seen = 0; // have we seen integer arguments?
+
+    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
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:simplereturn\n");
+#endif
+      }
+      else // complex return via ptr (pCppReturn)
+      {
+        pCppReturn = *(void **)gpreg;
+        gpreg++;
+        nw++;
+
+        pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
+            ? alloca( pReturnTypeDescr->nSize )
+            : pCppReturn); // direct way
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:complexreturn\n");
+#endif
+      }
+    }
+
+    // pop this
+    gpreg++;
+    nw++;
+
+    // stack space
+    static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!");
+    // parameters
+    void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
+    void ** pCppArgs = pUnoArgs + nParams;
+    // indices of values this have to be converted (interface conversion cpp<=>uno)
+    sal_Int32 * pTempIndices = (sal_Int32 *)(pUnoArgs + (2 * nParams));
+    // type descriptions for reconversions
+    typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
+
+    sal_Int32 nTempIndices   = 0;
+
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:nParams=%d\n",nParams);
+#endif
+
+    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:
+          case typelib_TypeClass_HYPER:
+          case typelib_TypeClass_UNSIGNED_HYPER:
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:hyper=%d,%p\n",pParamTypeDescr->eTypeClass,gpreg[0]);
+#endif
+            if (nw < 3) {
+              if (nw & 1) {
+                nw++;
+                gpreg++;
+              }
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:gpreg=%p,%p\n",gpreg[0],gpreg[1]);
+#endif
+              pCppArgs[nPos] = gpreg;
+              pUnoArgs[nPos] = gpreg;
+              nw += 2;
+              gpreg += 2;
+            } else {
+              if (((long)ovrflw) & 4) ovrflw++;
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:overflw=%p,%p\n",ovrflw[0],ovrflw[1]);
+#endif
+              pCppArgs[nPos] = ovrflw;
+              pUnoArgs[nPos] = ovrflw;
+              ovrflw += 2;
+            }
+            break;
+
+          case typelib_TypeClass_BYTE:
+          case typelib_TypeClass_BOOLEAN:
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:byte=%p,%p\n",gpreg[0],ovrflw[0]);
+#endif
+            if (nw < 4) {
+              pCppArgs[nPos] = ((char *)gpreg + 3*IS_BIG_ENDIAN);
+              pUnoArgs[nPos] = ((char *)gpreg + 3*IS_BIG_ENDIAN);
+              nw++;
+              gpreg++;
+            } else {
+              pCppArgs[nPos] = ((char *)ovrflw + 3*IS_BIG_ENDIAN);
+              pUnoArgs[nPos] = ((char *)ovrflw + 3*IS_BIG_ENDIAN);
+              ovrflw++;
+            }
+            break;
+
+
+          case typelib_TypeClass_CHAR:
+          case typelib_TypeClass_SHORT:
+          case typelib_TypeClass_UNSIGNED_SHORT:
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:char=%p,%p\n",gpreg[0],ovrflw[0]);
+#endif
+            if (nw < 4) {
+              pCppArgs[nPos] = ((char *)gpreg + 2*IS_BIG_ENDIAN);
+              pUnoArgs[nPos] = ((char *)gpreg + 2*IS_BIG_ENDIAN);
+              nw++;
+              gpreg++;
+            } else {
+              pCppArgs[nPos] = ((char *)ovrflw + 2*IS_BIG_ENDIAN);
+              pUnoArgs[nPos] = ((char *)ovrflw + 2*IS_BIG_ENDIAN);
+              ovrflw++;
+            }
+            break;
+
+
+          default:
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:def=%p,%p\n",gpreg[0],ovrflw[0]);
+#endif
+            if (nw < 4) {
+              pCppArgs[nPos] = gpreg;
+              pUnoArgs[nPos] = gpreg;
+              nw++;
+              gpreg++;
+            } else {
+              pCppArgs[nPos] = ovrflw;
+              pUnoArgs[nPos] = ovrflw;
+              ovrflw++;
+            }
+            break;
+
+        }
+        // no longer needed
+        TYPELIB_DANGER_RELEASE( pParamTypeDescr );
+      }
+      else // ptr to complex value | ref
+      {
+
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:ptr|ref\n");
+#endif
+        if (nw < 4) {
+          pCppArgs[nPos] = *(void **)gpreg;
+          pCppStack = gpreg;
+          nw++;
+          gpreg++;
+        } else {
+          pCppArgs[nPos] = *(void **)ovrflw;
+          pCppStack = ovrflw;
+          ovrflw++;
+        }
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:pCppStack=%p\n",pCppStack);
+#endif
+
+        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;
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:related to interface,%p,%d,pUnoargs[%d]=%p\n",*(void**)pCppStack,pParamTypeDescr->nSize,nPos,pUnoArgs[nPos]);
+#endif
+        }
+        else // direct way
+        {
+          pUnoArgs[nPos] = *(void **)pCppStack;
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call:direct,pUnoArgs[%d]=%p\n",nPos,pUnoArgs[nPos]);
+#endif
+          // no longer needed
+          TYPELIB_DANGER_RELEASE( pParamTypeDescr );
+        }
+      }
+    }
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call2,%p,unoargs=%p\n",pThis->getUnoI()->pDispatcher,pUnoArgs);
+#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 );
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp2uno_call2,after dispatch\n");
+#endif
+
+    // 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 */ )
+  {
+    static_assert(sizeof(sal_Int32)==sizeof(void *), "### unexpected!");
+
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate1 gp=%p,fp=%p,ov=%p\n",gpreg,fpreg,ovrflw);
+    fprintf(stderr,"gp=%p,%p,%p,%p\n",gpreg[0],gpreg[1],gpreg[2],gpreg[3]);
+#endif
+
+    // 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];
+    }
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate12,pThis=%p, nFunctionIndex=%d,nVtableOffset=%d\n",pThis,nFunctionIndex,nVtableOffset);
+#endif
+
+    pThis = static_cast< char * >(pThis) - nVtableOffset;
+    bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
+      = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
+          pThis);
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate13,pCppI=%p\n",pCppI);
+#endif
+
+    typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
+
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate2\n");
+#endif
+    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 *)pThis);
+    }
+
+    // determine called method
+    sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
+    assert(nMemberPos < pTypeDescr->nAllMembers);
+
+    TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
+
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate3\n");
+    OString cstr( OUStringToOString( aMemberDescr.get()->pTypeName, RTL_TEXTENCODING_ASCII_US ) );
+    fprintf( stderr, "calling %s, nFunctionIndex=%d\n", cstr.getStr(), nFunctionIndex );
+#endif
+    typelib_TypeClass eRet;
+    switch (aMemberDescr.get()->eTypeClass)
+    {
+      case typelib_TypeClass_INTERFACE_ATTRIBUTE:
+        {
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate4\n");
+#endif
+          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:
+        {
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate5\n");
+#endif
+          // is METHOD
+          switch (nFunctionIndex)
+          {
+            case 1: // acquire()
+              pCppI->acquireProxy(); // non virtual call!
+              eRet = typelib_TypeClass_VOID;
+              break;
+            case 2: // release()
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate51\n");
+#endif
+              pCppI->releaseProxy(); // non virtual call!
+              eRet = typelib_TypeClass_VOID;
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate52\n");
+#endif
+              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:
+        {
+#ifdef BRDEBUG
+    fprintf(stderr,"cpp_mediate6\n");
+#endif
+          throw RuntimeException( "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)
+//  static void cpp_vtable_call( int nFunctionIndex, int nVtableOffset, void** gpregptr, void** ovrflw)
+  static void cpp_vtable_call()
+  {
+    int nFunctionIndex;
+    int vTableOffset;
+    void** pCallStack;
+    void** ovrflw;
+
+    sal_Int32     gpreg[4];
+    double        fpreg[2];
+
+    //memcpy( fpreg, fpregptr, 16);
+
+    volatile long nRegReturn[2];
+
+    __asm__( "sw $4, %0\n\t"
+         "sw $5, %1\n\t"
+         "sw $6, %2\n\t"
+         "sw $7, %3\n\t"
+            ::"m"(nFunctionIndex), "m"(vTableOffset), "m"(pCallStack), "m"(ovrflw) );
+
+    memcpy( gpreg, pCallStack, 16);
+
+#ifdef BRDEBUG
+    fprintf(stderr,"in cpp_vtable_call nFunctionIndex is %d\n",nFunctionIndex);
+    fprintf(stderr,"in cpp_vtable_call nVtableOffset is %d\n",vTableOffset);
+    fprintf(stderr,"gp=%x,%x,%x,%x\n",gpreg[0],gpreg[1],gpreg[2],gpreg[3]);
+#endif
+
+    //sal_Bool bComplex = nFunctionIndex & 0x80000000 ? sal_True : sal_False;
+
+    typelib_TypeClass aType =
+      cpp_mediate( nFunctionIndex, vTableOffset, (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__( "lbu $2,%0\n\t" : :
+            "m"(nRegReturn[0]) );
+        break;
+
+      case typelib_TypeClass_CHAR:
+      case typelib_TypeClass_UNSIGNED_SHORT:
+        __asm__( "lhu $2,%0\n\t" : :
+            "m"(nRegReturn[0]) );
+        break;
+
+      case typelib_TypeClass_SHORT:
+        __asm__( "lh $2,%0\n\t" : :
+            "m"(nRegReturn[0]) );
+        break;
+
+
+      case typelib_TypeClass_FLOAT:
+        __asm__( "lwc1 $f0,%0\n\t" : :
+            "m" (*((float*)nRegReturn)) );
+        break;
+
+      case typelib_TypeClass_DOUBLE:
+          { register double dret asm("$f0");
+            dret = (*((double*)nRegReturn));
+            (void) dret;
+          }
+        break;
+
+      case typelib_TypeClass_HYPER:
+      case typelib_TypeClass_UNSIGNED_HYPER:
+        __asm__( "lw $3,%0\n\t" : :
+            "m"(nRegReturn[1]) );  // fall through
+
+      default:
+        __asm__( "lw $2,%0\n\t" : :
+            "m"(nRegReturn[0]) );
+        break;
+    }
+  }
+
+
+  int const codeSnippetSize = 56;
+
+  unsigned char *  codeSnippet( unsigned char * code, sal_Int32 functionIndex, sal_Int32 vtableOffset,
+      bool simpleRetType)
+  {
+
+#ifdef BRDEBUG
+     fprintf(stderr,"in codeSnippet functionIndex is %d\n", functionIndex);
+     fprintf(stderr,"in codeSnippet vtableOffset is %d\n", vtableOffset);
+     fflush(stderr);
+#endif
+
+    if (! simpleRetType )
+      functionIndex |= 0x80000000;
+
+    unsigned long * p = (unsigned long *) code;
+
+    // static_assert( sizeof (long) == 4 );
+    assert((((unsigned long)code) & 0x3) == 0 );  //aligned to 4 otherwise a mistake
+
+    /* generate this code */
+    /*
+       #save regs into argument space required by mips abi
+            c:   afa40000        sw      a0,0(sp)
+       10:   afa50004        sw      a1,4(sp)
+       14:   afa60008        sw      a2,8(sp)
+       18:   afa7000c        sw      a3,12(sp)
+       #a0=index
+       1c:   3c040000        lui     a0,0x0
+       20:   34840000        ori     a0,a0,0x0
+       #a1=offset
+       24:   3c050000        lui     a1,0x0
+       28:   34a50000        ori     a1,a1,0x0
+       #a2=gpregptr
+       2c:   27a60000        addiu   a2,sp,0
+       #a3=ovrflw
+       30:   27a70010        addiu   a3,sp,16
+       #load cpp_vtable_call addr
+       34:   3c190000        lui     t9,0x0
+       38:   37390000        ori     t9,t9,0
+       #jmp to the function,note: we don't use jalr, that will destroy $ra
+       #but be sure to use t9! gp calculation depends on it
+       3c:   03200008        jr      t9
+       40:   00000000        nop
+
+       be careful, we use the argument space reserved by the caller to
+       write down regs. This can avoid the need to make use of arbitrary far away
+       stack space or to allocate a function frame for this code snippet itself.
+       Since only functions with variable arguments will overwrite the space,
+       cpp_vtable_call should be safe.
+       ??? gcc seems change this behavior! cpp_vtable_call overwrite the space!
+     */
+
+    * p++ = 0xafa40000;
+    * p++ = 0xafa50004;
+    * p++ = 0xafa60008;
+    * p++ = 0xafa7000c;
+    * p++ = 0x3c040000 | ((functionIndex>>16) & 0x0000ffff);
+    * p++ = 0x34840000 | (functionIndex & 0x0000ffff);
+    * p++ = 0x3c050000 | ((vtableOffset>>16) & 0x0000ffff);
+    * p++ = 0x34a50000 | (vtableOffset & 0x0000ffff);
+    * p++ = 0x27a60000;
+    * p++ = 0x27a70010;
+    * p++ = 0x3c190000 | ((((unsigned long)cpp_vtable_call) >> 16) & 0x0000ffff);
+    * p++ = 0x37390000 | (((unsigned long)cpp_vtable_call) & 0x0000FFFF);
+    * p++ = 0x03200008;
+    * p++ = 0x00000000;
+    return (code + codeSnippetSize);
+
+  }
+
+
+}
+
+
+void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const *bptr, unsigned char const *eptr)
+{
+#ifndef ANDROID
+  (void) bptr;
+  (void) eptr;
+  sysmips(FLUSH_CACHE,0,0,0);
+#else
+   cacheflush((long) bptr, (long) eptr, 0);
+#endif
+}
+
+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; //null
+    slots[-1].fn = 0; //destructor
+    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 BRDEBUG
+   fprintf(stderr, "in addLocalFunctions functionOffset is %d\n",functionOffset);
+   fprintf(stderr, "in addLocalFunctions vtableOffset is %d\n",vtableOffset);
+   fprintf(stderr, "nMembers=%d\n",type->nMembers);
+   fflush(stderr);
+#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: */