bridges/source/cpp_uno/gcc3_solaris_sparc/cpp2uno.cxx

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  29  ************************************************************************/
  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_bridges.hxx"
  33 #include <com/sun/star/uno/genfunc.hxx>
  34 #include <typelib/typedescription.hxx>
  35 #include <uno/data.h>
  36 #include "bridges/cpp_uno/shared/bridge.hxx"
  37 #include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
  38 #include "bridges/cpp_uno/shared/types.hxx"
  39 #include "bridges/cpp_uno/shared/vtablefactory.hxx"
  40 #include "share.hxx"
  41 #include <sal/alloca.h>
  42
  43 using namespace com::sun::star::uno;
  44
  45 namespace
  46 {
  47 //==================================================================================================
  48 static typelib_TypeClass cpp2uno_call(
  49      bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
  50     const typelib_TypeDescription * pMemberTypeDescr,
  51     typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
  52     sal_Int32 nParams, typelib_MethodParameter * pParams,
  53     void ** pCallStack,
  54     sal_Int64 * pRegisterReturn /* space for register return */ )
  55 {
  56     // pCallStack: [ret ptr], this, params
  57     char * pCppStack = (char *)pCallStack;
  58
  59     // return
  60     typelib_TypeDescription * pReturnTypeDescr = 0;
  61     if (pReturnTypeRef)
  62         TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
  63
  64     void * pUnoReturn = 0;
  65     void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
  66
  67     if (pReturnTypeDescr)
  68     {
  69         if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
  70             pUnoReturn = pRegisterReturn; // direct way for simple types
  71         else // complex return via ptr (pCppReturn)
  72         {
  73             pCppReturn = *(void**)pCppStack;
  74             pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType(
  75                                    pReturnTypeDescr )
  76                           ? alloca( pReturnTypeDescr->nSize )
  77                           : pCppReturn); // direct way
  78             pCppStack += sizeof( void* );
  79         }
  80     }
  81     // pop this
  82     pCppStack += sizeof( void* );
  83
  84     // stack space
  85     OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" );
  86     // parameters
  87     void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
  88     void ** pCppArgs = pUnoArgs + nParams;
  89     // indizes of values this have to be converted (interface conversion cpp<=>uno)
  90     sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
  91     // type descriptions for reconversions
  92     typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
  93
  94     sal_Int32 nTempIndizes   = 0;
  95
  96     for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
  97     {
  98         const typelib_MethodParameter & rParam = pParams[nPos];
  99         typelib_TypeDescription * pParamTypeDescr = 0;
 100         TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
 101
 102          if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))  // value
 103         {
 104             pCppArgs[nPos] = pUnoArgs[nPos] = CPPU_CURRENT_NAMESPACE::adjustPointer(pCppStack, pParamTypeDescr);
 105             switch (pParamTypeDescr->eTypeClass)
 106             {
 107             case typelib_TypeClass_HYPER:
 108             case typelib_TypeClass_UNSIGNED_HYPER:
 109                     case typelib_TypeClass_DOUBLE:
 110                     {
 111             if ((reinterpret_cast< long >(pCppStack) & 7) != 0)
 112                       {
 113                    OSL_ASSERT( sizeof (double) == sizeof (sal_Int64) );
 114                            void * pDest = alloca( sizeof (sal_Int64) );
 115                            *reinterpret_cast< sal_Int32 * >(pDest) =
 116                            *reinterpret_cast< sal_Int32 const * >(pCppStack);
 117                            *(reinterpret_cast< sal_Int32 * >(pDest) + 1) =
 118                            *(reinterpret_cast< sal_Int32 const * >(pCppStack) + 1);
 119                            pCppArgs[nPos] = pUnoArgs[nPos] = pDest;
 120             }
 121                pCppStack += sizeof (sal_Int32); // extra long
 122                        break;
 123             }
 124             }
 125             // no longer needed
 126             TYPELIB_DANGER_RELEASE( pParamTypeDescr );
 127         }
 128         else // ptr to complex value | ref
 129         {
 130             pCppArgs[nPos] = *(void **)pCppStack;
 131
 132             if (! rParam.bIn) // is pure out
 133             {
 134                 // uno out is unconstructed mem!
 135                 pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
 136                 pTempIndizes[nTempIndizes] = nPos;
 137                 // will be released at reconversion
 138                 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
 139             }
 140             // is in/inout
 141             else if (bridges::cpp_uno::shared::relatesToInterfaceType(
 142                               pParamTypeDescr ))
 143             {
 144                 uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
 145                                         *(void **)pCppStack, pParamTypeDescr,
 146                                           pThis->getBridge()->getCpp2Uno() );
 147                 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
 148                 // will be released at reconversion
 149                 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
 150             }
 151             else // direct way
 152             {
 153                 pUnoArgs[nPos] = *(void **)pCppStack;
 154                 // no longer needed
 155                 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
 156             }
 157         }
 158         pCppStack += sizeof(sal_Int32); // standard parameter length
 159     }
 160
 161     // ExceptionHolder
 162     uno_Any aUnoExc; // Any will be constructed by callee
 163     uno_Any * pUnoExc = &aUnoExc;
 164
 165     // invoke uno dispatch call
 166     (*pThis->getUnoI()->pDispatcher)(pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
 167
 168     // in case an exception occured...
 169     if (pUnoExc)
 170     {
 171         // destruct temporary in/inout params
 172         for ( ; nTempIndizes--; )
 173         {
 174             sal_Int32 nIndex = pTempIndizes[nTempIndizes];
 175
 176             if (pParams[nIndex].bIn) // is in/inout => was constructed
 177                 uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
 178             TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
 179         }
 180         if (pReturnTypeDescr)
 181             TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
 182         CPPU_CURRENT_NAMESPACE::raiseException(&aUnoExc, pThis->getBridge()->getUno2Cpp() );
 183                  // has to destruct the any
 184         // is here for dummy
 185         return typelib_TypeClass_VOID;
 186     }
 187     else // else no exception occured...
 188     {
 189         // temporary params
 190         for ( ; nTempIndizes--; )
 191         {
 192             sal_Int32 nIndex = pTempIndizes[nTempIndizes];
 193             typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
 194
 195             if (pParams[nIndex].bOut) // inout/out
 196             {
 197                 // convert and assign
 198                 uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
 199                 uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
 200                                     pThis->getBridge()->getUno2Cpp() );
 201             }
 202             // destroy temp uno param
 203             uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
 204
 205             TYPELIB_DANGER_RELEASE( pParamTypeDescr );
 206         }
 207         // return
 208         if (pCppReturn) // has complex return
 209         {
 210             if (pUnoReturn != pCppReturn) // needs reconversion
 211             {
 212                 uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
 213                                         pThis->getBridge()->getUno2Cpp() );
 214                 // destroy temp uno return
 215                 uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
 216             }
 217             // complex return ptr is set to eax
 218             *(void **)pRegisterReturn = pCppReturn;
 219         }
 220         if (pReturnTypeDescr)
 221         {
 222             typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
 223             TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
 224             return eRet;
 225         }
 226         else
 227             return typelib_TypeClass_VOID;
 228     }
 229 }
 230
 231
 232 //==================================================================================================
 233 static typelib_TypeClass cpp_mediate(
 234     sal_Int32   nFunctionIndex,
 235     sal_Int32   nVtableOffset,
 236     void **     pCallStack,
 237     sal_Int64 * pRegisterReturn /* space for register return */ )
 238 {
 239     OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
 240
 241     // pCallStack: this, params
 242     // eventual [ret*] lies at pCallStack -1
 243     // so count down pCallStack by one to keep it simple
 244     // pCallStack: this, params
 245     // eventual [ret*] lies at pCallStack -1
 246     // so count down pCallStack by one to keep it simple
 247     bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
 248         = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
 249     static_cast< char * >(*pCallStack) - nVtableOffset);
 250     if ((nFunctionIndex & 0x80000000) != 0) {
 251         nFunctionIndex &= 0x7FFFFFFF;
 252         --pCallStack;
 253     }
 254
 255     typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
 256
 257     OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex,
 258                  "### illegal vtable index!" );
 259     if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
 260     {
 261         throw RuntimeException( rtl::OUString::createFromAscii("illegal vtable index!"), (XInterface *)pCppI );
 262     }
 263
 264     // determine called method
 265     sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
 266     OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );
 267
 268     TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
 269
 270 #if defined BRIDGES_DEBUG
 271     OString cstr( OUStringToOString( aMemberDescr.get()->pTypeName, RTL_TEXTENCODING_ASCII_US ) );
 272     fprintf( stderr, "calling %s, nFunctionIndex=%d\n", cstr.getStr(), nFunctionIndex );
 273 #endif
 274
 275     typelib_TypeClass eRet;
 276     switch (aMemberDescr.get()->eTypeClass)
 277     {
 278     case typelib_TypeClass_INTERFACE_ATTRIBUTE:
 279     {
 280         if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
 281         {
 282             // is GET method
 283             eRet = cpp2uno_call(
 284                 pCppI, aMemberDescr.get(),
 285                 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
 286                 0, 0, // no params
 287                 pCallStack, pRegisterReturn );
 288         }
 289         else
 290         {
 291             // is SET method
 292             typelib_MethodParameter aParam;
 293             aParam.pTypeRef =
 294                 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
 295             aParam.bIn          = sal_True;
 296             aParam.bOut         = sal_False;
 297
 298             eRet = cpp2uno_call(
 299                 pCppI, aMemberDescr.get(),
 300                 0, // indicates void return
 301                 1, &aParam,
 302                 pCallStack, pRegisterReturn );
 303         }
 304         break;
 305     }
 306     case typelib_TypeClass_INTERFACE_METHOD:
 307     {
 308         // is METHOD
 309         switch (nFunctionIndex)
 310         {
 311         case 1: // acquire()
 312             pCppI->acquireProxy(); // non virtual call!
 313             eRet = typelib_TypeClass_VOID;
 314             break;
 315         case 2: // release()
 316             pCppI->releaseProxy(); // non virtual call!
 317             eRet = typelib_TypeClass_VOID;
 318             break;
 319         case 0: // queryInterface() opt
 320         {
 321             typelib_TypeDescription * pTD = 0;
 322             TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pCallStack[2] )->getTypeLibType() );
 323             if (pTD)
 324             {
 325                 XInterface * pInterface = 0;
 326         (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
 327             pCppI->getBridge()->getCppEnv(),
 328             (void **)&pInterface, pCppI->getOid().pData, (typelib_InterfaceTypeDescription *)pTD );
 329
 330                 if (pInterface)
 331                 {
 332                     ::uno_any_construct(
 333                         reinterpret_cast< uno_Any * >( pCallStack[0] ),
 334                         &pInterface, pTD, cpp_acquire );
 335                     pInterface->release();
 336                     TYPELIB_DANGER_RELEASE( pTD );
 337                     *(void **)pRegisterReturn = pCallStack[0];
 338                     eRet = typelib_TypeClass_ANY;
 339                     break;
 340                 }
 341                 TYPELIB_DANGER_RELEASE( pTD );
 342             }
 343         } // else perform queryInterface()
 344         default:
 345             eRet = cpp2uno_call(
 346                 pCppI, aMemberDescr.get(),
 347                 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
 348                 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
 349                 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
 350                 pCallStack, pRegisterReturn );
 351         }
 352         break;
 353     }
 354     default:
 355     {
 356         throw RuntimeException(rtl::OUString::createFromAscii("no member description found!"), (XInterface *)pCppI );
 357         // is here for dummy
 358         eRet = typelib_TypeClass_VOID;
 359     }
 360     }
 361     return eRet;
 362 }
 363
 364
 365
 366 //==================================================================================================
 367 /**
 368  * is called on incoming vtable calls
 369  * (called by asm snippets)
 370  */
 371 static void cpp_vtable_call()
 372 {
 373     volatile sal_Int64 nRegReturn;
 374     int nFunctionIndex;
 375     void** pCallStack;
 376     int vTableOffset;
 377
 378     __asm__( "st %%i0, %0\n\t"
 379             "st %%i1, %1\n\t"
 380              "st %%i2, %2\n\t"
 381             : : "m"(nFunctionIndex), "m"(pCallStack), "m"(vTableOffset) );
 382
 383 //      fprintf(stderr,"cpp_mediate nFunctionIndex=%x\n",nFunctionIndex);
 384 //      fflush(stderr);
 385
 386     sal_Bool bComplex = nFunctionIndex & 0x80000000 ? sal_True : sal_False;
 387     typelib_TypeClass aType =
 388         cpp_mediate( nFunctionIndex, vTableOffset, pCallStack+17, (sal_Int64*)&nRegReturn );
 389
 390     switch( aType )
 391     {
 392         case typelib_TypeClass_BOOLEAN:
 393         case typelib_TypeClass_BYTE:
 394             __asm__( "ld %0, %%l0\n\t"
 395                      "ldsb [%%l0], %%i0\n"
 396                      : : "m"(&nRegReturn) );
 397             break;
 398         case typelib_TypeClass_CHAR:
 399         case typelib_TypeClass_SHORT:
 400         case typelib_TypeClass_UNSIGNED_SHORT:
 401             __asm__( "ld %0, %%l0\n\t"
 402                      "ldsh [%%l0], %%i0\n"
 403                      : : "m"(&nRegReturn) );
 404             break;
 405         case typelib_TypeClass_HYPER:
 406         case typelib_TypeClass_UNSIGNED_HYPER:
 407
 408             __asm__( "ld %0, %%l0\n\t"
 409                      "ld [%%l0], %%i0\n\t"
 410                      "ld %1, %%l0\n\t"
 411                      "ld [%%l0], %%i1\n\t"
 412                      : : "m"(&nRegReturn), "m"(((long*)&nRegReturn) +1) );
 413
 414             break;
 415         case typelib_TypeClass_FLOAT:
 416             __asm__( "ld %0, %%l0\n\t"
 417                      "ld [%%l0], %%f0\n"
 418                      : : "m"(&nRegReturn) );
 419             break;
 420         case typelib_TypeClass_DOUBLE:
 421             __asm__( "ld %0, %%l0\n\t"
 422                      "ldd [%%l0], %%f0\n"
 423                      : : "m"(&nRegReturn) );
 424             break;
 425         case typelib_TypeClass_VOID:
 426             break;
 427         default:
 428             __asm__( "ld %0, %%l0\n\t"
 429                      "ld [%%l0], %%i0\n"
 430                      : : "m"(&nRegReturn) );
 431             break;
 432     }
 433
 434     if( bComplex )
 435     {
 436         __asm__( "add %i7, 4, %i7\n\t" );
 437         // after call to complex return valued funcion there is an unimp instruction
 438     }
 439
 440 }
 441 //__________________________________________________________________________________________________
 442
 443 int const codeSnippetSize = 56;
 444 unsigned char * codeSnippet(
 445     unsigned char * code, sal_Int32 functionIndex, sal_Int32 vtableOffset,
 446     bool simpleRetType)
 447 {
 448     sal_uInt32 index = functionIndex;
 449     if (!simpleRetType) {
 450         index |= 0x80000000;
 451     }
 452     unsigned int * p = reinterpret_cast< unsigned int * >(code);
 453     OSL_ASSERT(sizeof (unsigned int) == 4);
 454     // st %o0, [%sp+68]:
 455     *p++ = 0xD023A044;
 456     // st %o1, [%sp+72]:
 457     *p++ = 0xD223A048;
 458     // st %o2, [%sp+76]:
 459     *p++ = 0xD423A04C;
 460     // st %o3, [%sp+80]:
 461     *p++ = 0xD623A050;
 462     // st %o4, [%sp+84]:
 463     *p++ = 0xD823A054;
 464     // st %o5, [%sp+88]:
 465     *p++ = 0xDA23A058;
 466     // sethi %hi(index), %o0:
 467     *p++ = 0x11000000 | (index >> 10);
 468     // or %o0, %lo(index), %o0:
 469     *p++ = 0x90122000 | (index & 0x3FF);
 470     // sethi %hi(vtableOffset), %o2:
 471     *p++ = 0x15000000 | (vtableOffset >> 10);
 472     // or %o2, %lo(vtableOffset), %o2:
 473     *p++ = 0x9412A000 | (vtableOffset & 0x3FF);
 474     // sethi %hi(cpp_vtable_call), %o3:
 475     *p++ = 0x17000000 | (reinterpret_cast< unsigned int >(cpp_vtable_call) >> 10);
 476     // or %o3, %lo(cpp_vtable_call), %o3:
 477     *p++ = 0x9612E000 | (reinterpret_cast< unsigned int >(cpp_vtable_call) & 0x3FF);
 478     // jmpl %o3, %g0:
 479     *p++ = 0x81C2C000;
 480     // mov %sp, %o1:
 481     *p++ = 0x9210000E;
 482     OSL_ASSERT(
 483         reinterpret_cast< unsigned char * >(p) - code <= codeSnippetSize);
 484     return code + codeSnippetSize;
 485 }
 486
 487 } //end of namespace
 488
 489 struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
 490
 491 bridges::cpp_uno::shared::VtableFactory::Slot *
 492 bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
 493 {
 494     return static_cast< Slot * >(block) + 2;
 495 }
 496
 497 sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
 498     sal_Int32 slotCount)
 499 {
 500     return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
 501 }
 502
 503 bridges::cpp_uno::shared::VtableFactory::Slot *
 504 bridges::cpp_uno::shared::VtableFactory::initializeBlock(
 505     void * block, sal_Int32 slotCount)
 506 {
 507     Slot * slots = mapBlockToVtable(block);
 508     slots[-2].fn = 0; //null
 509     slots[-1].fn = 0; //destructor
 510     return slots + slotCount;
 511 }
 512
 513 unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
 514     Slot ** slots, unsigned char * code,
 515     typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
 516     sal_Int32 functionCount, sal_Int32 vTableOffset)
 517 {
 518     (*slots) -= functionCount;
 519     Slot * s = *slots;
 520     for (sal_Int32 i = 0; i < type->nMembers; ++i) {
 521         typelib_TypeDescription * member = 0;
 522         TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
 523         OSL_ASSERT(member != 0);
 524         switch (member->eTypeClass) {
 525         case typelib_TypeClass_INTERFACE_ATTRIBUTE:
 526             // Getter:
 527             (s++)->fn = code;
 528             code = codeSnippet(
 529                 code, functionOffset++, vTableOffset,
 530                 bridges::cpp_uno::shared::isSimpleType(
 531                     reinterpret_cast<
 532             typelib_InterfaceAttributeTypeDescription * >(
 533             member)->pAttributeTypeRef));
 534             // Setter:
 535             if (!reinterpret_cast<
 536                 typelib_InterfaceAttributeTypeDescription * >(
 537                     member)->bReadOnly)
 538             {
 539                 (s++)->fn = code;
 540                 code = codeSnippet(code, functionOffset++, vTableOffset, true);
 541             }
 542             break;
 543
 544         case typelib_TypeClass_INTERFACE_METHOD:
 545             (s++)->fn = code;
 546             code = codeSnippet(
 547                 code, functionOffset++, vTableOffset,
 548                 bridges::cpp_uno::shared::isSimpleType(
 549                     reinterpret_cast<
 550                     typelib_InterfaceMethodTypeDescription * >(
 551                         member)->pReturnTypeRef));
 552             break;
 553
 554         default:
 555             OSL_ASSERT(false);
 556             break;
 557         }
 558         TYPELIB_DANGER_RELEASE(member);
 559     }
 560     return code;
 561 }
 562
 563 void bridges::cpp_uno::shared::VtableFactory::flushCode(
 564        unsigned char const *, unsigned char const *)
 565       {
 566         //TODO: IZ 25819  flush the instruction cache (there probably is OS support for this)
 567     }