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