1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
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
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
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.
19 *
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
cpp2uno_call(bridges::cpp_uno::shared::CppInterfaceProxy * pThis,const typelib_TypeDescription * pMemberTypeDescr,typelib_TypeDescriptionReference * pReturnTypeRef,sal_Int32 nParams,typelib_MethodParameter * pParams,void ** gpreg,void ** fpreg,void ** ovrflw,sal_Int64 * pRegisterReturn)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 //============================================================================
cpp_mediate(sal_uInt32 nOffsetAndIndex,void ** gpreg,void ** fpreg,void ** ovrflw,sal_Int64 * pRegisterReturn)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 */
privateSnippetExecutor(sal_uInt32 nOffsetAndIndex,void ** gpregptr,void ** fpregptr,void ** ovrflw)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
codeSnippet(unsigned char * code,sal_Int16 nFunctionIndex,sal_Int16 nVtableOffset,bool simple_ret_type)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
flushCode(unsigned char const *,unsigned char const *)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 *
mapBlockToVtable(void * block)614 bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
615 {
616 return static_cast< Slot * >(block) + 2;
617 }
618
getBlockSize(sal_Int32 slotCount)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 *
initializeBlock(void * block,sal_Int32 slotCount)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
addLocalFunctions(Slot ** slots,unsigned char * code,sal_PtrDiff writetoexecdiff,typelib_InterfaceTypeDescription const * type,sal_Int32 functionOffset,sal_Int32 functionCount,sal_Int32 vtableOffset)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