1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*
3  * This file is part of the LibreOffice project.
4  *
5  * This Source Code Form is subject to the terms of the Mozilla Public
6  * License, v. 2.0. If a copy of the MPL was not distributed with this
7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8  *
9  * This file incorporates work covered by the following license notice:
10  *
11  *   Licensed to the Apache Software Foundation (ASF) under one or more
12  *   contributor license agreements. See the NOTICE file distributed
13  *   with this work for additional information regarding copyright
14  *   ownership. The ASF licenses this file to you under the Apache
15  *   License, Version 2.0 (the "License"); you may not use this file
16  *   except in compliance with the License. You may obtain a copy of
17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
18  */
19 
20 
21 #include <com/sun/star/uno/genfunc.hxx>
22 #include <sal/log.hxx>
23 #include <uno/data.h>
24 #include <typelib/typedescription.hxx>
25 
26 #include "bridge.hxx"
27 #include "cppinterfaceproxy.hxx"
28 #include "types.hxx"
29 #include "vtablefactory.hxx"
30 
31 #include "share.hxx"
32 #include <stdio.h>
33 
34 extern "C" { extern void (*privateSnippetExecutor)(); }
35 
36 using namespace ::com::sun::star::uno;
37 
38 namespace
39 {
40 
cpp2uno_call(bridges::cpp_uno::shared::CppInterfaceProxy * pThis,const typelib_TypeDescription * pMemberTypeDescr,typelib_TypeDescriptionReference * pReturnTypeRef,sal_Int32 nParams,typelib_MethodParameter * pParams,long r8,void ** gpreg,void ** fpreg,void ** ovrflw,sal_Int64 * pRegisterReturn)41 static typelib_TypeClass cpp2uno_call(
42     bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
43     const typelib_TypeDescription * pMemberTypeDescr,
44     typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
45     sal_Int32 nParams, typelib_MethodParameter * pParams, long r8,
46         void ** gpreg, void ** fpreg, void ** ovrflw,
47     sal_Int64 * pRegisterReturn /* space for register return */ )
48 {
49 #if OSL_DEBUG_LEVEL > 2
50     fprintf(stderr, "as far as cpp2uno_call\n");
51 #endif
52 
53     int ng = 0; //number of gpr registers used
54     int nf = 0; //number of fpr registers used
55 
56     // gpreg:  [ret *], this, [gpr params]
57     // fpreg:  [fpr params]
58     // ovrflw: [gpr or fpr params (properly aligned)]
59 
60     // return
61     typelib_TypeDescription * pReturnTypeDescr = 0;
62     if (pReturnTypeRef)
63         TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
64 
65     void * pUnoReturn = 0;
66     void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
67 
68     if (pReturnTypeDescr)
69     {
70         if ( ia64::return_in_hidden_param( pReturnTypeRef ) ) // complex return via ptr passed as hidden parameter reg (pCppReturn)
71         {
72             pCppReturn = *(void **)gpreg;
73             gpreg++;
74             ng++;
75 
76             pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
77                           ? alloca( pReturnTypeDescr->nSize )
78                           : pCppReturn); // direct way
79         }
80         else if ( ia64::return_via_r8_buffer( pReturnTypeRef ) ) // complex return via ptr passed in r8
81         {
82             pCppReturn = (void *)r8;
83 
84             pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
85                           ? alloca( pReturnTypeDescr->nSize )
86                           : pCppReturn); // direct way
87         }
88 
89         else
90             pUnoReturn = pRegisterReturn; // direct way for simple types
91     }
92     // pop this
93     gpreg++;
94     ng++;
95 
96     // stack space
97     static_assert(sizeof(void *) == sizeof(sal_Int64), "### unexpected size!");
98     // parameters
99     void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
100     void ** pCppArgs = pUnoArgs + nParams;
101     // indices of values this have to be converted (interface conversion cpp<=>uno)
102     sal_Int32 * pTempIndices = (sal_Int32 *)(pUnoArgs + (2 * nParams));
103     // type descriptions for reconversions
104     typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
105 
106     sal_Int32 nTempIndices = 0;
107     bool bOverflowUsed = false;
108     for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
109     {
110         const typelib_MethodParameter & rParam = pParams[nPos];
111         typelib_TypeDescription * pParamTypeDescr = 0;
112         TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
113 
114 #if OSL_DEBUG_LEVEL > 2
115         fprintf(stderr, "arg %d of %d\n", nPos, nParams);
116 #endif
117 
118         //I think it is impossible to get UNO to pass structs as parameters by copy
119         if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
120         {
121 #if OSL_DEBUG_LEVEL > 2
122             fprintf(stderr, "simple\n");
123 #endif
124 
125             switch (pParamTypeDescr->eTypeClass)
126             {
127                 case typelib_TypeClass_FLOAT:
128                     if (nf < ia64::MAX_SSE_REGS && ng < ia64::MAX_GPR_REGS)
129                     {
130                         float tmp = (float) (*((double *)fpreg));
131                         (*((float *) fpreg)) = tmp;
132                         pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++;
133                         nf++;
134                         gpreg++;
135                         ng++;
136                     }
137                     else
138                     {
139                         pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
140                         bOverflowUsed = true;
141                     }
142                     if (bOverflowUsed) ovrflw++;
143                     break;
144                 case typelib_TypeClass_DOUBLE:
145                     if (nf < ia64::MAX_SSE_REGS && ng < ia64::MAX_GPR_REGS)
146                     {
147                         pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++;
148                         nf++;
149                         gpreg++;
150                         ng++;
151                     }
152                     else
153                     {
154                         pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
155                         bOverflowUsed = true;
156                     }
157                     if (bOverflowUsed) ovrflw++;
158                     break;
159                 case typelib_TypeClass_BYTE:
160                 case typelib_TypeClass_BOOLEAN:
161                 case typelib_TypeClass_CHAR:
162                 case typelib_TypeClass_SHORT:
163                 case typelib_TypeClass_UNSIGNED_SHORT:
164                 case typelib_TypeClass_ENUM:
165                 case typelib_TypeClass_LONG:
166                 case typelib_TypeClass_UNSIGNED_LONG:
167                 default:
168                     if (ng < ia64::MAX_GPR_REGS)
169                     {
170                         pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++;
171                         ng++;
172                     }
173                     else
174                     {
175                         pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
176                         bOverflowUsed = true;
177                     }
178                     if (bOverflowUsed) ovrflw++;
179                     break;
180                 }
181 
182                 // no longer needed
183                 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
184         }
185         else // ptr to complex value | ref
186         {
187 #if OSL_DEBUG_LEVEL > 2
188             fprintf(stderr, "complex, ng is %d\n", ng);
189 #endif
190             void *pCppStack; //temporary stack pointer
191 
192             if (ng < ia64::MAX_GPR_REGS)
193             {
194                 pCppArgs[nPos] = pCppStack = *gpreg++;
195                 ng++;
196             }
197             else
198             {
199                 pCppArgs[nPos] = pCppStack = *ovrflw;
200                 bOverflowUsed = true;
201             }
202             if (bOverflowUsed) ovrflw++;
203 
204             if (! rParam.bIn) // is pure out
205             {
206                 // uno out is unconstructed mem!
207                 pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
208                 pTempIndices[nTempIndices] = nPos;
209                 // will be released at reconversion
210                 ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
211             }
212             // is in/inout
213             else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
214             {
215                 uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
216                                         pCppStack, pParamTypeDescr,
217                                         pThis->getBridge()->getCpp2Uno() );
218                 pTempIndices[nTempIndices] = nPos; // has to be reconverted
219                 // will be released at reconversion
220                 ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
221             }
222             else // direct way
223             {
224                 pUnoArgs[nPos] = pCppStack;
225                 // no longer needed
226                 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
227             }
228         }
229     }
230 
231 #if OSL_DEBUG_LEVEL > 2
232     fprintf(stderr, "end of params\n");
233 #endif
234 
235     // ExceptionHolder
236     uno_Any aUnoExc; // Any will be constructed by callee
237     uno_Any * pUnoExc = &aUnoExc;
238 
239     // invoke uno dispatch call
240     (*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
241 
242     // in case an exception occurred...
243     if (pUnoExc)
244     {
245         // destruct temporary in/inout params
246         for ( ; nTempIndices--; )
247         {
248             sal_Int32 nIndex = pTempIndices[nTempIndices];
249 
250             if (pParams[nIndex].bIn) // is in/inout => was constructed
251                 uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndices], 0 );
252             TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] );
253         }
254         if (pReturnTypeDescr)
255             TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
256 
257         CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() );
258                 // has to destruct the any
259         // is here for dummy
260         return typelib_TypeClass_VOID;
261     }
262     else // else no exception occurred...
263     {
264         // temporary params
265         for ( ; nTempIndices--; )
266         {
267             sal_Int32 nIndex = pTempIndices[nTempIndices];
268             typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices];
269 
270             if (pParams[nIndex].bOut) // inout/out
271             {
272                 // convert and assign
273                 uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
274                 uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
275                                         pThis->getBridge()->getUno2Cpp() );
276             }
277             // destroy temp uno param
278             uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
279 
280             TYPELIB_DANGER_RELEASE( pParamTypeDescr );
281         }
282         // return
283         if (pCppReturn) // has complex return
284         {
285             if (pUnoReturn != pCppReturn) // needs reconversion
286             {
287                 uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
288                                         pThis->getBridge()->getUno2Cpp() );
289                 // destroy temp uno return
290                 uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
291             }
292             // complex return ptr is set to return reg
293             *(void **)pRegisterReturn = pCppReturn;
294         }
295         if (pReturnTypeDescr)
296         {
297             typelib_TypeClass eRet = ia64::return_via_r8_buffer(pReturnTypeRef) ? typelib_TypeClass_VOID : (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
298             TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
299             return eRet;
300         }
301         else
302             return typelib_TypeClass_VOID;
303     }
304 }
305 
306 
cpp_mediate(sal_uInt64 nOffsetAndIndex,void ** gpreg,void ** fpreg,long sp,long r8,sal_Int64 * pRegisterReturn)307 static typelib_TypeClass cpp_mediate(
308     sal_uInt64 nOffsetAndIndex,
309         void ** gpreg, void ** fpreg, long sp, long r8,
310     sal_Int64 * pRegisterReturn /* space for register return */ )
311 {
312     static_assert(sizeof(sal_Int64)==sizeof(void *), "### unexpected!");
313 
314     sal_Int32 nVtableOffset = (nOffsetAndIndex >> 32);
315     sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFFFFFF);
316 
317     void ** ovrflw = (void**)(sp);
318 
319     // gpreg:  [ret *], this, [other gpr params]
320     // fpreg:  [fpr params]
321     // ovrflw: [gpr or fpr params (properly aligned)]
322 
323     void * pThis;
324     if (nFunctionIndex & 0x80000000 )
325     {
326     nFunctionIndex &= 0x7fffffff;
327     pThis = gpreg[1];
328 #if OSL_DEBUG_LEVEL > 2
329     fprintf(stderr, "pThis is gpreg[1]\n");
330 #endif
331     }
332     else
333     {
334     pThis = gpreg[0];
335 #if OSL_DEBUG_LEVEL > 2
336     fprintf(stderr, "pThis is gpreg[0]\n");
337 #endif
338     }
339 
340 #if OSL_DEBUG_LEVEL > 2
341     fprintf(stderr, "pThis is %p\n", pThis);
342 #endif
343 
344     pThis = static_cast< char * >(pThis) - nVtableOffset;
345 
346 #if OSL_DEBUG_LEVEL > 2
347     fprintf(stderr, "pThis is now %p\n", pThis);
348 #endif
349 
350     bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
351         = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
352             pThis);
353 
354     typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
355 
356 #if OSL_DEBUG_LEVEL > 2
357     fprintf(stderr, "indexes are %d %d\n", nFunctionIndex, pTypeDescr->nMapFunctionIndexToMemberIndex);
358 #endif
359 
360     if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
361     {
362         SAL_WARN(
363             "bridges",
364             "illegal " << OUString::unacquired(&pTypeDescr->aBase.pTypeName)
365                 << " vtable index " << nFunctionIndex << "/"
366                 << pTypeDescr->nMapFunctionIndexToMemberIndex);
367         throw RuntimeException(
368             ("illegal " + OUString::unacquired(&pTypeDescr->aBase.pTypeName)
369              + " vtable index " + OUString::number(nFunctionIndex) + "/"
370              + OUString::number(pTypeDescr->nMapFunctionIndexToMemberIndex)),
371             (XInterface *)pThis);
372     }
373 
374     // determine called method
375     sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
376     assert(nMemberPos < pTypeDescr->nAllMembers);
377 
378 #if OSL_DEBUG_LEVEL > 2
379     fprintf(stderr, "members are %d %d\n", nMemberPos, pTypeDescr->nAllMembers);
380 #endif
381 
382     TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
383 
384     typelib_TypeClass eRet;
385     switch (aMemberDescr.get()->eTypeClass)
386     {
387     case typelib_TypeClass_INTERFACE_ATTRIBUTE:
388     {
389         if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
390         {
391             // is GET method
392             eRet = cpp2uno_call(
393                 pCppI, aMemberDescr.get(),
394                 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
395                 0, 0, // no params
396                 r8, gpreg, fpreg, ovrflw, pRegisterReturn );
397         }
398         else
399         {
400             // is SET method
401             typelib_MethodParameter aParam;
402             aParam.pTypeRef =
403                 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
404             aParam.bIn      = sal_True;
405             aParam.bOut     = sal_False;
406 
407             eRet = cpp2uno_call(
408                 pCppI, aMemberDescr.get(),
409                 0, // indicates void return
410                 1, &aParam,
411                 r8, gpreg, fpreg, ovrflw, pRegisterReturn );
412         }
413         break;
414     }
415     case typelib_TypeClass_INTERFACE_METHOD:
416     {
417         // is METHOD
418         switch (nFunctionIndex)
419         {
420         case 1: // acquire()
421             pCppI->acquireProxy(); // non virtual call!
422             eRet = typelib_TypeClass_VOID;
423             break;
424         case 2: // release()
425             pCppI->releaseProxy(); // non virtual call!
426             eRet = typelib_TypeClass_VOID;
427             break;
428         case 0: // queryInterface() opt
429         {
430             typelib_TypeDescription * pTD = 0;
431             TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() );
432             if (pTD)
433             {
434                 XInterface * pInterface = 0;
435                 (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
436                     pCppI->getBridge()->getCppEnv(),
437                     (void **)&pInterface, pCppI->getOid().pData,
438                     (typelib_InterfaceTypeDescription *)pTD );
439 
440                 if (pInterface)
441                 {
442                     ::uno_any_construct(
443                         reinterpret_cast< uno_Any * >( gpreg[0] ),
444                         &pInterface, pTD, cpp_acquire );
445                     pInterface->release();
446                     TYPELIB_DANGER_RELEASE( pTD );
447                     *(void **)pRegisterReturn = gpreg[0];
448                     eRet = typelib_TypeClass_ANY;
449                     break;
450                 }
451                 TYPELIB_DANGER_RELEASE( pTD );
452             }
453         } // else perform queryInterface()
454         default:
455             eRet = cpp2uno_call(
456                 pCppI, aMemberDescr.get(),
457                 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
458                 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
459                 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
460                 r8, gpreg, fpreg, ovrflw, pRegisterReturn );
461         }
462         break;
463     }
464     default:
465     {
466 #if OSL_DEBUG_LEVEL > 2
467         fprintf(stderr, "screwed\n");
468 #endif
469 
470         throw RuntimeException( "no member description found!", (XInterface *)pThis );
471     }
472     }
473 
474 #if OSL_DEBUG_LEVEL > 2
475         fprintf(stderr, "end of cpp_mediate\n");
476 #endif
477     return eRet;
478 }
479 }
480 
cpp_vtable_call(long in0,long in1,long in2,long in3,long in4,long in5,long in6,long in7,long firstonstack)481 extern "C" ia64::RegReturn cpp_vtable_call(
482     long in0, long in1, long in2, long in3, long in4, long in5, long in6, long in7,
483     long firstonstack
484     )
485 {
486     register long r15 asm("r15");
487     long r8 = r15;
488 
489     register long r14 asm("r14");
490     long nOffsetAndIndex = r14;
491 
492     long sp = (long)&firstonstack;
493 
494     sal_uInt64 gpreg[ia64::MAX_GPR_REGS];
495     gpreg[0] = in0;
496     gpreg[1] = in1;
497     gpreg[2] = in2;
498     gpreg[3] = in3;
499     gpreg[4] = in4;
500     gpreg[5] = in5;
501     gpreg[6] = in6;
502     gpreg[7] = in7;
503 
504     double fpreg[ia64::MAX_SSE_REGS];
505     register double f8  asm("f8");  fpreg[0] =  f8;
506     register double f9  asm("f9");  fpreg[1] =  f9;
507     register double f10 asm("f10"); fpreg[2] = f10;
508     register double f11 asm("f11"); fpreg[3] = f11;
509     register double f12 asm("f12"); fpreg[4] = f12;
510     register double f13 asm("f13"); fpreg[5] = f13;
511     register double f14 asm("f14"); fpreg[6] = f14;
512     register double f15 asm("f15"); fpreg[7] = f15;
513 
514 #if OSL_DEBUG_LEVEL > 2
515     fprintf(stderr, "cpp_vtable_call called with %lx\n", nOffsetAndIndex);
516     fprintf(stderr, "adump is %lx %lx %lx %lx %lx %lx %lx %lx\n", in0, in1, in2, in3, in4, in5, in6, in7);
517     fprintf(stderr, "bdump is %f %f %f %f %f %f %f %f\n", f8, f9, f10, f11, f12, f13, f14, f15);
518 #endif
519 
520     volatile long nRegReturn[4] = { 0 };
521 
522     typelib_TypeClass aType =
523         cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, sp, r8, (sal_Int64*)&nRegReturn[0]);
524 
525     ia64::RegReturn ret;
526     switch( aType )
527     {
528         case typelib_TypeClass_VOID:
529             break;
530         case typelib_TypeClass_BOOLEAN:
531         case typelib_TypeClass_BYTE:
532         case typelib_TypeClass_CHAR:
533         case typelib_TypeClass_UNSIGNED_SHORT:
534         case typelib_TypeClass_SHORT:
535         case typelib_TypeClass_ENUM:
536         case typelib_TypeClass_UNSIGNED_LONG:
537         case typelib_TypeClass_LONG:
538         case typelib_TypeClass_UNSIGNED_HYPER:
539         case typelib_TypeClass_HYPER:
540             ret.r8 = nRegReturn[0];
541             break;
542         case typelib_TypeClass_FLOAT:
543             asm volatile("ldfs f8=%0" : : "m"((*((float*)&nRegReturn))) : "f8");
544             break;
545         case typelib_TypeClass_DOUBLE:
546             asm volatile("ldfd f8=%0" : : "m"((*((double*)&nRegReturn))) : "f8");
547             break;
548         case typelib_TypeClass_STRUCT:
549     case typelib_TypeClass_EXCEPTION:
550     {
551             ret.r8 = nRegReturn[0];
552             ret.r9 = nRegReturn[1];
553             ret.r10 = nRegReturn[2];
554             ret.r11 = nRegReturn[3];
555             break;
556     }
557         default:
558         break;
559     }
560     return ret;
561 }
562 
563 namespace
564 {
565 const int codeSnippetSize = 40;
566 
codeSnippet(unsigned char * code,sal_PtrDiff writetoexecdiff,sal_Int32 nFunctionIndex,sal_Int32 nVtableOffset,bool bHasHiddenParam)567 bridges::cpp_uno::shared::VtableFactory::Slot codeSnippet( unsigned char * code, sal_PtrDiff writetoexecdiff, sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset,
568                               bool bHasHiddenParam )
569 {
570 #if OSL_DEBUG_LEVEL > 2
571     fprintf(stderr, "size is %d\n", codeSnippetSize);
572     fprintf(stderr,"in codeSnippet functionIndex is %x\n", nFunctionIndex);
573     fprintf(stderr,"in codeSnippet vtableOffset is %x\n", nVtableOffset);
574 #endif
575 
576     sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex );
577 
578     if ( bHasHiddenParam )
579         nOffsetAndIndex |= 0x80000000;
580 
581     long *raw = (long *)code;
582 
583     bridges::cpp_uno::shared::VtableFactory::Slot* destination = (bridges::cpp_uno::shared::VtableFactory::Slot*)cpp_vtable_call;
584 
585     raw[0] = (long)&privateSnippetExecutor;
586     raw[1] = (long)&raw[2];
587     raw[2] = nOffsetAndIndex;
588     raw[3] = destination->gp_value;
589 
590     return *(bridges::cpp_uno::shared::VtableFactory::Slot*)(code+writetoexecdiff);
591 }
592 }
593 
flushCode(unsigned char const *,unsigned char const *)594 void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const *, unsigned char const *)
595 {
596 }
597 
mapBlockToVtable(void * block)598 bridges::cpp_uno::shared::VtableFactory::Slot * bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
599 {
600     return static_cast< Slot * >(block) + 2;
601 }
602 
603 
getBlockSize(sal_Int32 slotCount)604 std::size_t bridges::cpp_uno::shared::VtableFactory::getBlockSize(
605     sal_Int32 slotCount)
606 {
607     return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
608 }
609 
initializeBlock(void * block,sal_Int32 slotCount,sal_Int32,typelib_InterfaceTypeDescription *)610 bridges::cpp_uno::shared::VtableFactory::Slot* bridges::cpp_uno::shared::VtableFactory::initializeBlock(void * block, sal_Int32 slotCount, sal_Int32, typelib_InterfaceTypeDescription *)
611 {
612     Slot * slots = mapBlockToVtable(block);
613     Slot foo = {0,0};
614     slots[-2] = foo;
615     slots[-1] = foo;
616     return slots + slotCount;
617 }
618 
addLocalFunctions(Slot ** in_slots,unsigned char * code,sal_PtrDiff writetoexecdiff,typelib_InterfaceTypeDescription const * type,sal_Int32 functionOffset,sal_Int32 functionCount,sal_Int32 vtableOffset)619 unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
620     Slot ** in_slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
621     typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
622     sal_Int32 functionCount, sal_Int32 vtableOffset)
623 {
624     (*in_slots) -= functionCount;
625     Slot * slots = *in_slots;
626 #if OSL_DEBUG_LEVEL > 2
627     fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
628     fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
629 #endif
630 
631     for (sal_Int32 i = 0; i < type->nMembers; ++i) {
632         typelib_TypeDescription * member = 0;
633         TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
634         assert(member != 0);
635         switch (member->eTypeClass) {
636         case typelib_TypeClass_INTERFACE_ATTRIBUTE:
637             // Getter:
638             *slots++ = codeSnippet(
639                 code, writetoexecdiff, functionOffset++, vtableOffset,
640                 ia64::return_in_hidden_param(
641                     reinterpret_cast<
642                     typelib_InterfaceAttributeTypeDescription * >(
643                         member)->pAttributeTypeRef));
644             code += codeSnippetSize;
645 
646 
647             // Setter:
648             if (!reinterpret_cast<
649                 typelib_InterfaceAttributeTypeDescription * >(
650                     member)->bReadOnly)
651             {
652                 *slots++ = codeSnippet(code, writetoexecdiff, functionOffset++, vtableOffset, false);
653                 code += codeSnippetSize;
654             }
655             break;
656 
657         case typelib_TypeClass_INTERFACE_METHOD:
658             *slots++ = codeSnippet(
659                 code, writetoexecdiff, functionOffset++, vtableOffset,
660                 ia64::return_in_hidden_param(
661                     reinterpret_cast<
662                     typelib_InterfaceMethodTypeDescription * >(
663                         member)->pReturnTypeRef));
664             code += codeSnippetSize;
665             break;
666 
667         default:
668             assert(false);
669             break;
670         }
671         TYPELIB_DANGER_RELEASE(member);
672     }
673     return code;
674 }
675 
676 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
677