1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
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5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
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11  *   http://www.apache.org/licenses/LICENSE-2.0
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13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
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20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_bridges.hxx"
26 
27 #include <com/sun/star/uno/genfunc.hxx>
28 #include <uno/data.h>
29 #include <typelib/typedescription.hxx>
30 
31 #include "bridges/cpp_uno/shared/bridge.hxx"
32 #include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
33 #include "bridges/cpp_uno/shared/types.hxx"
34 #include "bridges/cpp_uno/shared/vtablefactory.hxx"
35 
36 #include "share.hxx"
37 #include <stdio.h>
38 #include <string.h>
39 
40 using namespace ::com::sun::star::uno;
41 
42 namespace
43 {
44 
45 static typelib_TypeClass cpp2uno_call(
46 	bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
47 	const typelib_TypeDescription * pMemberTypeDescr,
48 	typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
49 	sal_Int32 nParams, typelib_MethodParameter * pParams,
50         void ** gpreg, void ** fpreg, void ** ovrflw,
51 	sal_Int64 * pRegisterReturn /* space for register return */ )
52 {
53         int ng = 0; //number of gpr registers used
54         int nf = 0; //number of fpr regsiters used
55         void ** pCppStack; //temporary stack pointer
56 
57         // gpreg:  [ret *], this, [gpr params]
58         // fpreg:  [fpr params]
59         // ovrflw: [gpr or fpr params (properly aligned)]
60 
61 	// return
62 	typelib_TypeDescription * pReturnTypeDescr = 0;
63 	if (pReturnTypeRef)
64 		TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
65 
66 	void * pUnoReturn = 0;
67 	void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
68 
69 	if (pReturnTypeDescr)
70 	{
71 		if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
72 		{
73 			pUnoReturn = pRegisterReturn; // direct way for simple types
74 		}
75 		else // complex return via ptr (pCppReturn)
76 		{
77 			pCppReturn = *(void **)gpreg;
78                         gpreg++;
79                         ng++;
80 
81 			pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
82 						  ? alloca( pReturnTypeDescr->nSize )
83 						  : pCppReturn); // direct way
84 		}
85 	}
86 	// pop this
87         gpreg++;
88         ng++;
89 
90 	// stack space
91 	OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" );
92 	// parameters
93 	void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
94 	void ** pCppArgs = pUnoArgs + nParams;
95 	// indizes of values this have to be converted (interface conversion cpp<=>uno)
96 	sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
97 	// type descriptions for reconversions
98 	typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
99 
100 	sal_Int32 nTempIndizes   = 0;
101 
102 	for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
103 	{
104 		const typelib_MethodParameter & rParam = pParams[nPos];
105 		typelib_TypeDescription * pParamTypeDescr = 0;
106 		TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
107 
108 		if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) // value
109 		{
110 
111 			switch (pParamTypeDescr->eTypeClass)
112 			{
113 
114 			  case typelib_TypeClass_DOUBLE:
115 			   if (nf < 2) {
116 			      pCppArgs[nPos] = fpreg;
117 			      pUnoArgs[nPos] = fpreg;
118 			      nf++;
119 			      fpreg += 2;
120 			   } else {
121 				pCppArgs[nPos] = ovrflw;
122 				pUnoArgs[nPos] = ovrflw;
123 			        ovrflw += 2;
124 			   }
125 			   break;
126 
127 			   case typelib_TypeClass_FLOAT:
128 			    // fpreg are all double values so need to
129 			    // modify fpreg to be a single word float value
130 			    if (nf < 2) {
131 //			       float tmp = (float) (*((double *)fpreg));
132 //			       (*((float *) fpreg)) = tmp;
133 			       pCppArgs[nPos] = fpreg;
134 			       pUnoArgs[nPos] = fpreg;
135 			       nf++;
136 			       fpreg += 2;
137 			    } else {
138                               pCppArgs[nPos] = ovrflw;
139 			      pUnoArgs[nPos] = ovrflw;
140 			      ovrflw += 1;
141                             }
142 			    break;
143 
144 			case typelib_TypeClass_HYPER:
145 			case typelib_TypeClass_UNSIGNED_HYPER:
146 			 if (ng < 4) {
147 			    pCppArgs[nPos] = gpreg;
148 			    pUnoArgs[nPos] = gpreg;
149 			    ng += 2;
150 			    gpreg += 2;
151 			 } else {
152 			    pCppArgs[nPos] = ovrflw;
153 			    pUnoArgs[nPos] = ovrflw;
154 			    ovrflw += 2;
155 			  }
156 			  break;
157 
158 			case typelib_TypeClass_BYTE:
159 			case typelib_TypeClass_BOOLEAN:
160 			 if (ng < 5) {
161 			      pCppArgs[nPos] = (((char *)gpreg) + 3);
162 			      pUnoArgs[nPos] = (((char *)gpreg) + 3);
163 			      ng++;
164 			      gpreg++;
165 			 } else {
166 			      pCppArgs[nPos] = (((char *)ovrflw) + 3);
167 			      pUnoArgs[nPos] = (((char *)ovrflw) + 3);
168 			      ovrflw++;
169 			 }
170 			 break;
171 
172 
173 		       case typelib_TypeClass_CHAR:
174 		       case typelib_TypeClass_SHORT:
175 		       case typelib_TypeClass_UNSIGNED_SHORT:
176 			if (ng < 5) {
177 			      pCppArgs[nPos] = (((char *)gpreg)+ 2);
178 			      pUnoArgs[nPos] = (((char *)gpreg)+ 2);
179 			      ng++;
180 			      gpreg++;
181 			} else {
182 			      pCppArgs[nPos] = (((char *)ovrflw) + 2);
183 			      pUnoArgs[nPos] = (((char *)ovrflw) + 2);
184 			      ovrflw++;
185 			}
186 			break;
187 
188 
189 		      default:
190 			if (ng < 5) {
191 			      pCppArgs[nPos] = gpreg;
192 			      pUnoArgs[nPos] = gpreg;
193 			      ng++;
194 			      gpreg++;
195 			} else {
196 			      pCppArgs[nPos] = ovrflw;
197 			      pUnoArgs[nPos] = ovrflw;
198 			      ovrflw++;
199 			}
200                         break;
201 
202 		        }
203 		        // no longer needed
204 			TYPELIB_DANGER_RELEASE( pParamTypeDescr );
205 		}
206 		else // ptr to complex value | ref
207 		{
208 
209 		        if (ng < 5) {
210 		          pCppArgs[nPos] = *(void **)gpreg;
211 		          pCppStack = gpreg;
212 		          ng++;
213 		          gpreg++;
214 		        } else {
215 		          pCppArgs[nPos] = *(void **)ovrflw;
216 		          pCppStack = ovrflw;
217 		         ovrflw++;
218 		        }
219 
220 			if (! rParam.bIn) // is pure out
221 			{
222 				// uno out is unconstructed mem!
223 				pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
224 				pTempIndizes[nTempIndizes] = nPos;
225 				// will be released at reconversion
226 				ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
227 			}
228 			// is in/inout
229 			else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
230 			{
231 				uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
232 										*(void **)pCppStack, pParamTypeDescr,
233 										pThis->getBridge()->getCpp2Uno() );
234 				pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
235 				// will be released at reconversion
236 				ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
237 			}
238 			else // direct way
239 			{
240 				pUnoArgs[nPos] = *(void **)pCppStack;
241 				// no longer needed
242 				TYPELIB_DANGER_RELEASE( pParamTypeDescr );
243 			}
244 		}
245 	}
246 
247 	// ExceptionHolder
248 	uno_Any aUnoExc; // Any will be constructed by callee
249 	uno_Any * pUnoExc = &aUnoExc;
250 
251 	// invoke uno dispatch call
252 	(*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
253 
254 	// in case an exception occured...
255 	if (pUnoExc)
256 	{
257 		// destruct temporary in/inout params
258 		for ( ; nTempIndizes--; )
259 		{
260 			sal_Int32 nIndex = pTempIndizes[nTempIndizes];
261 
262 			if (pParams[nIndex].bIn) // is in/inout => was constructed
263 				uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
264 			TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
265 		}
266 		if (pReturnTypeDescr)
267 			TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
268 
269 		CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() ); // has to destruct the any
270 		// is here for dummy
271 		return typelib_TypeClass_VOID;
272 	}
273 	else // else no exception occured...
274 	{
275 		// temporary params
276 		for ( ; nTempIndizes--; )
277 		{
278 			sal_Int32 nIndex = pTempIndizes[nTempIndizes];
279 			typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
280 
281 			if (pParams[nIndex].bOut) // inout/out
282 			{
283 				// convert and assign
284 				uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
285 				uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
286 										pThis->getBridge()->getUno2Cpp() );
287 			}
288 			// destroy temp uno param
289 			uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
290 
291 			TYPELIB_DANGER_RELEASE( pParamTypeDescr );
292 		}
293 		// return
294 		if (pCppReturn) // has complex return
295 		{
296 			if (pUnoReturn != pCppReturn) // needs reconversion
297 			{
298 				uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
299 										pThis->getBridge()->getUno2Cpp() );
300 				// destroy temp uno return
301 				uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
302 			}
303 			// complex return ptr is set to return reg
304 			*(void **)pRegisterReturn = pCppReturn;
305 		}
306 		if (pReturnTypeDescr)
307 		{
308 			typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
309 			TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
310 			return eRet;
311 		}
312 		else
313 			return typelib_TypeClass_VOID;
314 	}
315 }
316 
317 
318 //============================================================================
319 static typelib_TypeClass cpp_mediate(
320 	sal_uInt32 nOffsetAndIndex,
321 	void ** gpreg, void ** fpreg, void ** ovrflw,
322 	sal_Int64 * pRegisterReturn /* space for register return */ )
323 {
324 	OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
325 
326     sal_Int16 nVtableOffset = (nOffsetAndIndex >> 16);
327     sal_Int16 nFunctionIndex = (nOffsetAndIndex & 0xFFFF);
328 
329 	// gpreg:  [ret *], this, [other gpr params]
330 	// fpreg:  [fpr params]
331 	// ovrflw: [gpr or fpr params (properly aligned)]
332 
333 	// _this_ ptr is patched cppu_XInterfaceProxy object
334 	void * pThis;
335 	if( nFunctionIndex & 0x8000 )
336 	{
337 		nFunctionIndex &= 0x7fff;
338 		pThis = gpreg[1];
339 	}
340 	else
341     {
342 		pThis = gpreg[0];
343     }
344 
345     pThis = static_cast< char * >(pThis) - nVtableOffset;
346 
347     bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
348         = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
349             pThis);
350 
351     typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
352 
353 
354 	OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
355 	if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
356 	{
357 		throw RuntimeException(
358             rtl::OUString::createFromAscii("illegal vtable index!"),
359             (XInterface *)pCppI );
360 	}
361 
362 	// determine called method
363 	OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
364 	sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
365 	OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );
366 
367 	TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
368 
369 	typelib_TypeClass eRet;
370 	switch (aMemberDescr.get()->eTypeClass)
371 	{
372 	case typelib_TypeClass_INTERFACE_ATTRIBUTE:
373 	{
374 		if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
375 		{
376 			// is GET method
377 			eRet = cpp2uno_call(
378 				pCppI, aMemberDescr.get(),
379 				((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
380 				0, 0, // no params
381 				gpreg, fpreg, ovrflw, pRegisterReturn );
382 		}
383 		else
384 		{
385 			// is SET method
386 			typelib_MethodParameter aParam;
387 			aParam.pTypeRef =
388 				((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
389 			aParam.bIn		= sal_True;
390 			aParam.bOut		= sal_False;
391 
392 			eRet = cpp2uno_call(
393 				pCppI, aMemberDescr.get(),
394 				0, // indicates void return
395 				1, &aParam,
396 				gpreg, fpreg, ovrflw, pRegisterReturn );
397 		}
398 		break;
399 	}
400 	case typelib_TypeClass_INTERFACE_METHOD:
401 	{
402 		// is METHOD
403 		switch (nFunctionIndex)
404 		{
405 		case 1: // acquire()
406 			pCppI->acquireProxy(); // non virtual call!
407 			eRet = typelib_TypeClass_VOID;
408 			break;
409 		case 2: // release()
410 			pCppI->releaseProxy(); // non virtual call!
411 			eRet = typelib_TypeClass_VOID;
412 			break;
413 		case 0: // queryInterface() opt
414 		{
415 			typelib_TypeDescription * pTD = 0;
416 			TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() );
417 			if (pTD)
418 			{
419                 XInterface * pInterface = 0;
420                 (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
421                     pCppI->getBridge()->getCppEnv(),
422                     (void **)&pInterface, pCppI->getOid().pData,
423 					(typelib_InterfaceTypeDescription *)pTD );
424 
425                 if (pInterface)
426                 {
427                     ::uno_any_construct(
428                         reinterpret_cast< uno_Any * >( gpreg[0] ),
429                         &pInterface, pTD, cpp_acquire );
430                     pInterface->release();
431                     TYPELIB_DANGER_RELEASE( pTD );
432                     *(void **)pRegisterReturn = gpreg[0];
433                     eRet = typelib_TypeClass_ANY;
434                     break;
435                 }
436                 TYPELIB_DANGER_RELEASE( pTD );
437             }
438 		} // else perform queryInterface()
439 		default:
440 			eRet = cpp2uno_call(
441 				pCppI, aMemberDescr.get(),
442 				((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
443 				((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
444 				((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
445 				gpreg, fpreg, ovrflw, pRegisterReturn );
446 		}
447 		break;
448 	}
449 	default:
450 	{
451 		throw RuntimeException(
452             rtl::OUString::createFromAscii("no member description found!"),
453             (XInterface *)pCppI );
454 		// is here for dummy
455 		eRet = typelib_TypeClass_VOID;
456 	}
457 	}
458 
459 	return eRet;
460 }
461 
462 //==================================================================================================
463 /**
464  * is called on incoming vtable calls
465  * (called by asm snippets)
466  */
467 static void privateSnippetExecutor( sal_uInt32 nOffsetAndIndex, void** gpregptr, void** fpregptr, void** ovrflw)
468 {
469 #ifdef CMC_DEBUG
470 	fprintf(stderr, "privateSnippetExecutor\n");
471 #endif
472 
473 
474     sal_Int32     gpreg[8];
475     double        fpreg[8];
476 
477     memcpy( gpreg, gpregptr, 32);
478     memcpy( fpreg, fpregptr, 64);
479 
480 	volatile long nRegReturn[2];
481 
482 	typelib_TypeClass aType =
483 		cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, ovrflw,
484 		(sal_Int64*)nRegReturn );
485 
486 	switch( aType )
487 	{
488 
489                 // move return value into register space
490                 // (will be loaded by machine code snippet)
491 
492                 case typelib_TypeClass_BOOLEAN:
493 		  {
494                   unsigned long tmp = (unsigned long)(*(unsigned char *)nRegReturn);
495                   __asm__ volatile ( "l 2,%0\n\t" : :
496 			   "m"(tmp) : "2" );
497                   break;
498 		  }
499                 case typelib_TypeClass_BYTE:
500 		  {
501                   long tmp = (long)(*(signed char *)nRegReturn);
502                   __asm__ volatile ( "l 2,%0\n\t" : :
503 			   "m"(tmp) : "2" );
504                   break;
505 		  }
506                 case typelib_TypeClass_CHAR:
507                 case typelib_TypeClass_UNSIGNED_SHORT:
508 		  {
509                   unsigned long tmp = (unsigned long)(*(unsigned short *)nRegReturn);
510                   __asm__ volatile ( "l 2,%0\n\t" : :
511 			   "m"(tmp) : "2" );
512                   break;
513 		  }
514                 case typelib_TypeClass_SHORT:
515 		  {
516                   long tmp = (long)(*(short *)nRegReturn);
517                   __asm__ volatile ( "l 2,%0\n\t" : :
518 			   "m"(tmp) : "2" );
519                   break;
520 		  }
521 		case typelib_TypeClass_FLOAT:
522                   __asm__ volatile ( "le 0,%0\n\t" : :
523                            "m" (*((float*)nRegReturn)) : "16" );
524 		  break;
525 
526 		case typelib_TypeClass_DOUBLE:
527 		  __asm__ volatile ( "ld 0,%0\n\t" : :
528                            "m" (*((double*)nRegReturn)) : "16" );
529 		  break;
530 
531 		case typelib_TypeClass_HYPER:
532 		case typelib_TypeClass_UNSIGNED_HYPER:
533 		  __asm__ volatile ( "lm 2,3,%0\n\t" : :
534                            "m"(nRegReturn[0]) : "2", "3" );
535 		  break;
536 
537 		default:
538 		  __asm__ volatile ( "l 2,%0\n\t" : :
539                            "m"(nRegReturn[0]) : "2" );
540 		  break;
541 	}
542 }
543 
544 const int codeSnippetSize = 50;
545 
546 unsigned char* codeSnippet( unsigned char * code, sal_Int16 nFunctionIndex, sal_Int16 nVtableOffset, bool simple_ret_type )
547 {
548     sal_uInt32 nOffsetAndIndex = ( ( nVtableOffset ) << 16 ) | ( nFunctionIndex );
549 
550     if (! simple_ret_type)
551         nOffsetAndIndex |= 0x8000;
552 
553     OSL_ASSERT( sizeof (long) == 4 );
554 
555      /* generate this code */
556      // lr      %r0,%r13
557      // bras    %r13,0x6
558      // .long   privateSnippetExecutor
559      // .long   nOffsetAndIndex
560      // stm     %r2,%r6,8(%r15)
561      // std     %f0,64(%r15)
562      // std     %f2,72(%r15)
563 
564      // l       %r2,4(%r13)
565      // la      %r3,8(%r15)
566      // la      %r4,64(%r15)
567      // la      %r5,96(%r15)
568      // l       %r1,0(%r13)
569      // lr      %r13,%r0
570      // br      %r1
571 
572     unsigned char * p = code;
573     *reinterpret_cast< sal_Int16 * >(p) = 0x180d;
574     p += sizeof(sal_Int16);
575     *reinterpret_cast< sal_Int32 * >(p) = 0xa7d50006;
576     p += sizeof(sal_Int32);
577     *reinterpret_cast< sal_Int32 * >(p) =
578         reinterpret_cast< sal_Int32 >(privateSnippetExecutor);
579     p += sizeof(sal_Int32);
580     *reinterpret_cast< sal_Int32 * >(p) = nOffsetAndIndex;
581     p += sizeof(sal_Int32);
582     *reinterpret_cast< sal_Int32 * >(p) = 0x9026f008;
583     p += sizeof(sal_Int32);
584     *reinterpret_cast< sal_Int32 * >(p) = 0x6000f040;
585     p += sizeof(sal_Int32);
586     *reinterpret_cast< sal_Int32 * >(p) = 0x6020f048;
587     p += sizeof(sal_Int32);
588     *reinterpret_cast< sal_Int32 * >(p) = 0x5820d004;
589     p += sizeof(sal_Int32);
590     *reinterpret_cast< sal_Int32 * >(p) = 0x4130f008;
591     p += sizeof(sal_Int32);
592     *reinterpret_cast< sal_Int32 * >(p) = 0x4140f040;
593     p += sizeof(sal_Int32);
594     *reinterpret_cast< sal_Int32 * >(p) = 0x4150f060;
595     p += sizeof(sal_Int32);
596     *reinterpret_cast< sal_Int32 * >(p) = 0x5810d000;
597     p += sizeof(sal_Int32);
598     *reinterpret_cast< sal_Int16 * >(p) = 0x18d0;
599     p += sizeof(sal_Int16);
600     *reinterpret_cast< sal_Int16 * >(p) = 0x07f1;
601     p += sizeof(sal_Int16);
602 
603     return (code + codeSnippetSize);
604 }
605 }
606 
607 void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const *, unsigned char const *)
608 {
609 }
610 
611 struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
612 
613 bridges::cpp_uno::shared::VtableFactory::Slot *
614 bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
615 {
616     return static_cast< Slot * >(block) + 2;
617 }
618 
619 sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
620     sal_Int32 slotCount)
621 {
622     return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
623 }
624 
625 bridges::cpp_uno::shared::VtableFactory::Slot *
626 bridges::cpp_uno::shared::VtableFactory::initializeBlock(
627     void * block, sal_Int32 slotCount)
628 {
629     Slot * slots = mapBlockToVtable(block);
630     slots[-2].fn = 0;
631     slots[-1].fn = 0;
632     return slots + slotCount;
633 }
634 
635 unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
636     Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
637     typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
638     sal_Int32 functionCount, sal_Int32 vtableOffset)
639 {
640      (*slots) -= functionCount;
641      Slot * s = *slots;
642 #ifdef CMC_DEBUG
643     fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
644     fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
645 #endif
646 
647     for (sal_Int32 i = 0; i < type->nMembers; ++i) {
648         typelib_TypeDescription * member = 0;
649         TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
650         OSL_ASSERT(member != 0);
651         switch (member->eTypeClass) {
652         case typelib_TypeClass_INTERFACE_ATTRIBUTE:
653             // Getter:
654             (s++)->fn = code + writetoexecdiff;
655             code = codeSnippet(
656                 code, functionOffset++, vtableOffset,
657                 bridges::cpp_uno::shared::isSimpleType(
658                     reinterpret_cast<
659                     typelib_InterfaceAttributeTypeDescription * >(
660                         member)->pAttributeTypeRef));
661 
662             // Setter:
663             if (!reinterpret_cast<
664                 typelib_InterfaceAttributeTypeDescription * >(
665                     member)->bReadOnly)
666             {
667                 (s++)->fn = code + writetoexecdiff;
668                 code = codeSnippet(code, functionOffset++, vtableOffset, true);
669             }
670             break;
671 
672         case typelib_TypeClass_INTERFACE_METHOD:
673             (s++)->fn = code + writetoexecdiff;
674             code = codeSnippet(
675                 code, functionOffset++, vtableOffset,
676                 bridges::cpp_uno::shared::isSimpleType(
677                     reinterpret_cast<
678                     typelib_InterfaceMethodTypeDescription * >(
679                         member)->pReturnTypeRef));
680             break;
681 
682         default:
683             OSL_ASSERT(false);
684             break;
685         }
686         TYPELIB_DANGER_RELEASE(member);
687     }
688     return code;
689 }
690 
691 /* vi:set tabstop=4 shiftwidth=4 expandtab: */
692