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 <osl/endian.h>
32 #include "bridges/cpp_uno/shared/bridge.hxx"
33 #include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
34 #include "bridges/cpp_uno/shared/types.hxx"
35 #include "bridges/cpp_uno/shared/vtablefactory.hxx"
36
37 #include "share.hxx"
38 #include <stdio.h>
39 #include <string.h>
40
41 #ifdef OSL_BIGENDIAN
42 #define IS_BIG_ENDIAN 1
43 #else
44 #define IS_BIG_ENDIAN 0
45 #endif
46
47 using namespace ::com::sun::star::uno;
48
49 namespace
50 {
51
52 //==================================================================================================
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)53 static typelib_TypeClass cpp2uno_call(
54 bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
55 const typelib_TypeDescription * pMemberTypeDescr,
56 typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
57 sal_Int32 nParams, typelib_MethodParameter * pParams,
58 void ** gpreg, void ** fpreg, void ** ovrflw,
59 sal_Int64 * pRegisterReturn /* space for register return */ )
60 {
61 #ifdef CMC_DEBUG
62 fprintf(stderr, "as far as cpp2uno_call\n");
63 #endif
64
65 int ng = 0; //number of gpr registers used
66 int nf = 0; //number of fpr regsiters used
67
68 // gpreg: [ret *], this, [gpr params]
69 // fpreg: [fpr params]
70 // ovrflw: [gpr or fpr params (properly aligned)]
71
72 // return
73 typelib_TypeDescription * pReturnTypeDescr = 0;
74 if (pReturnTypeRef)
75 TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
76
77 void * pUnoReturn = 0;
78 void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
79 double * pFprReturn = reinterpret_cast< double * >( fpreg );
80 typelib_TypeClass eFprBase = typelib_TypeClass_VOID;
81 sal_Int32 nFprMembers = 0;
82
83 if (pReturnTypeDescr)
84 {
85 if (!ppc64::return_in_hidden_param( pReturnTypeRef ))
86 {
87 nFprMembers = ppc64::return_in_fprs( pReturnTypeRef, eFprBase );
88 pUnoReturn = (nFprMembers != 0
89 ? alloca( pReturnTypeDescr->nSize )
90 : pRegisterReturn); // direct way for simple types
91 }
92 else // complex return via ptr (pCppReturn)
93 {
94 pCppReturn = *(void **)gpreg;
95 gpreg++;
96 ng++;
97
98 pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
99 ? alloca( pReturnTypeDescr->nSize )
100 : pCppReturn); // direct way
101 }
102 }
103 // pop this
104 gpreg++;
105 ng++;
106
107 // stack space
108 OSL_ENSURE( sizeof(void *) == sizeof(sal_Int64), "### unexpected size!" );
109 // parameters
110 void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
111 void ** pCppArgs = pUnoArgs + nParams;
112 // indizes of values this have to be converted (interface conversion cpp<=>uno)
113 sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
114 // type descriptions for reconversions
115 typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
116
117 sal_Int32 nTempIndizes = 0;
118 bool bOverFlowUsed = false;
119 for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
120 {
121 const typelib_MethodParameter & rParam = pParams[nPos];
122 typelib_TypeDescription * pParamTypeDescr = 0;
123 TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
124
125 #ifdef CMC_DEBUG
126 fprintf(stderr, "arg %d of %d\n", nPos, nParams);
127 #endif
128
129 if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
130 {
131 #ifdef CMC_DEBUG
132 fprintf(stderr, "simple\n");
133 #endif
134
135 switch (pParamTypeDescr->eTypeClass)
136 {
137 case typelib_TypeClass_FLOAT:
138 case typelib_TypeClass_DOUBLE:
139 if (nf < ppc64::MAX_SSE_REGS)
140 {
141 if (pParamTypeDescr->eTypeClass == typelib_TypeClass_FLOAT)
142 {
143 float tmp = (float) (*((double *)fpreg));
144 (*((float *) fpreg)) = tmp;
145 }
146 pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++;
147 nf++;
148 }
149 else
150 {
151 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
152 bOverFlowUsed = true;
153 }
154 if (bOverFlowUsed) ovrflw++;
155 break;
156 case typelib_TypeClass_BYTE:
157 case typelib_TypeClass_BOOLEAN:
158 if (ng < ppc64::MAX_GPR_REGS)
159 {
160 pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)gpreg) + 7*IS_BIG_ENDIAN);
161 ng++;
162 gpreg++;
163 }
164 else
165 {
166 pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + 7*IS_BIG_ENDIAN);
167 bOverFlowUsed = true;
168 }
169 if (bOverFlowUsed) ovrflw++;
170 break;
171 case typelib_TypeClass_CHAR:
172 case typelib_TypeClass_SHORT:
173 case typelib_TypeClass_UNSIGNED_SHORT:
174 if (ng < ppc64::MAX_GPR_REGS)
175 {
176 pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)gpreg) + 6*IS_BIG_ENDIAN);
177 ng++;
178 gpreg++;
179 }
180 else
181 {
182 pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + 6*IS_BIG_ENDIAN);
183 bOverFlowUsed = true;
184 }
185 if (bOverFlowUsed) ovrflw++;
186 break;
187 case typelib_TypeClass_ENUM:
188 case typelib_TypeClass_LONG:
189 case typelib_TypeClass_UNSIGNED_LONG:
190 if (ng < ppc64::MAX_GPR_REGS)
191 {
192 pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)gpreg) + 4*IS_BIG_ENDIAN);
193 ng++;
194 gpreg++;
195 }
196 else
197 {
198 pCppArgs[nPos] = pUnoArgs[nPos] = (((char *)ovrflw) + 4*IS_BIG_ENDIAN);
199 bOverFlowUsed = true;
200 }
201 if (bOverFlowUsed) ovrflw++;
202 break;
203 default:
204 if (ng < ppc64::MAX_GPR_REGS)
205 {
206 pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++;
207 ng++;
208 }
209 else
210 {
211 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
212 bOverFlowUsed = true;
213 }
214 if (bOverFlowUsed) ovrflw++;
215 break;
216 }
217
218 // no longer needed
219 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
220 }
221 else // ptr to complex value | ref
222 {
223 #ifdef CMC_DEBUG
224 fprintf(stderr, "complex, ng is %d\n", ng);
225 #endif
226 void *pCppStack; //temporary stack pointer
227
228 if (ng < ppc64::MAX_GPR_REGS)
229 {
230 pCppArgs[nPos] = pCppStack = *gpreg++;
231 ng++;
232 }
233 else
234 {
235 pCppArgs[nPos] = pCppStack = *ovrflw;
236 bOverFlowUsed = true;
237 }
238 if (bOverFlowUsed) ovrflw++;
239
240 if (! rParam.bIn) // is pure out
241 {
242 // uno out is unconstructed mem!
243 pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
244 pTempIndizes[nTempIndizes] = nPos;
245 // will be released at reconversion
246 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
247 }
248 // is in/inout
249 else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
250 {
251 uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
252 pCppStack, pParamTypeDescr,
253 pThis->getBridge()->getCpp2Uno() );
254 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
255 // will be released at reconversion
256 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
257 }
258 else // direct way
259 {
260 pUnoArgs[nPos] = pCppStack;
261 // no longer needed
262 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
263 }
264 }
265 }
266
267 #ifdef CMC_DEBUG
268 fprintf(stderr, "end of params\n");
269 #endif
270
271 // ExceptionHolder
272 uno_Any aUnoExc; // Any will be constructed by callee
273 uno_Any * pUnoExc = &aUnoExc;
274
275 // invoke uno dispatch call
276 (*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
277
278 // in case an exception occurred...
279 if (pUnoExc)
280 {
281 // destruct temporary in/inout params
282 for ( ; nTempIndizes--; )
283 {
284 sal_Int32 nIndex = pTempIndizes[nTempIndizes];
285
286 if (pParams[nIndex].bIn) // is in/inout => was constructed
287 uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
288 TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
289 }
290 if (pReturnTypeDescr)
291 TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
292
293 CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() );
294 // has to destruct the any
295 // is here for dummy
296 return typelib_TypeClass_VOID;
297 }
298 else // else no exception occurred...
299 {
300 // temporary params
301 for ( ; nTempIndizes--; )
302 {
303 sal_Int32 nIndex = pTempIndizes[nTempIndizes];
304 typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
305
306 if (pParams[nIndex].bOut) // inout/out
307 {
308 // convert and assign
309 uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
310 uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
311 pThis->getBridge()->getUno2Cpp() );
312 }
313 // destroy temp uno param
314 uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
315
316 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
317 }
318 // return
319 if (pCppReturn) // has complex return
320 {
321 if (pUnoReturn != pCppReturn) // needs reconversion
322 {
323 uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
324 pThis->getBridge()->getUno2Cpp() );
325 // destroy temp uno return
326 uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
327 }
328 // complex return ptr is set to return reg
329 *(void **)pRegisterReturn = pCppReturn;
330 }
331 if (pReturnTypeDescr)
332 {
333 typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
334 if (nFprMembers != 0)
335 {
336 for (sal_Int32 i = 0; i < nFprMembers; ++i)
337 pFprReturn[i] = (eFprBase == typelib_TypeClass_FLOAT
338 ? static_cast< float * >( pUnoReturn )[i]
339 : static_cast< double * >( pUnoReturn )[i]);
340 eRet = ppc64::TYPECLASS_FPRS;
341 }
342 #ifdef OSL_BIGENDIAN
343 else if (eRet == typelib_TypeClass_STRUCT && !pCppReturn && pReturnTypeDescr->nSize < 8)
344 {
345 sal_uInt64 n = 0;
346 memcpy( reinterpret_cast< char * >( &n ) + 8 - pReturnTypeDescr->nSize,
347 pRegisterReturn, pReturnTypeDescr->nSize );
348 *reinterpret_cast< sal_uInt64 * >( pRegisterReturn ) = n;
349 }
350 #endif
351 TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
352 return eRet;
353 }
354 else
355 return typelib_TypeClass_VOID;
356 }
357 }
358
359 #if defined(_CALL_ELF) && _CALL_ELF == 2
360 # define PARAMSAVE 32
361 #else
362 # define PARAMSAVE 48
363 #endif
364
cpp_mediate(sal_uInt64 nOffsetAndIndex,void ** gpreg,void ** fpreg,long sp,sal_Int64 * pRegisterReturn)365 extern "C" typelib_TypeClass cpp_mediate(
366 sal_uInt64 nOffsetAndIndex,
367 void ** gpreg, void ** fpreg, long sp,
368 sal_Int64 * pRegisterReturn /* space for register return */ )
369 {
370 static_assert(sizeof(sal_Int64)==sizeof(void *), "### unexpected!");
371
372 sal_Int32 nVtableOffset = (nOffsetAndIndex >> 32);
373 sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFFFFFF);
374
375 long sf = *(long*)sp;
376 void ** ovrflw = (void**)(sf + PARAMSAVE + 64);
377
378 // gpreg: [ret *], this, [other gpr params]
379 // fpreg: [fpr params]
380 // ovrflw: [gpr or fpr params (properly aligned)]
381
382 void * pThis;
383 if (nFunctionIndex & 0x80000000 )
384 {
385 nFunctionIndex &= 0x7fffffff;
386 pThis = gpreg[1];
387 #ifdef CMC_DEBUG
388 fprintf(stderr, "pThis is gpreg[1]\n");
389 #endif
390 }
391 else
392 {
393 pThis = gpreg[0];
394 #ifdef CMC_DEBUG
395 fprintf(stderr, "pThis is gpreg[0]\n");
396 #endif
397 }
398
399 #ifdef CMC_DEBUG
400 fprintf(stderr, "pThis is %lx\n", pThis);
401 #endif
402
403 pThis = static_cast< char * >(pThis) - nVtableOffset;
404
405 #ifdef CMC_DEBUG
406 fprintf(stderr, "pThis is now %lx\n", pThis);
407 #endif
408
409 bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
410 = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
411 pThis);
412
413 typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
414
415 #ifdef CMC_DEBUG
416 fprintf(stderr, "indexes are %d %d\n", nFunctionIndex, pTypeDescr->nMapFunctionIndexToMemberIndex);
417 #endif
418
419 OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
420 if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
421 {
422 throw RuntimeException(
423 rtl::OUString::createFromAscii("illegal vtable index!"),
424 (XInterface *)pThis );
425 }
426
427 // determine called method
428 sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
429 OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );
430
431 #ifdef CMC_DEBUG
432 fprintf(stderr, "members are %d %d\n", nMemberPos, pTypeDescr->nAllMembers);
433 #endif
434
435 TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
436
437 typelib_TypeClass eRet;
438 switch (aMemberDescr.get()->eTypeClass)
439 {
440 case typelib_TypeClass_INTERFACE_ATTRIBUTE:
441 {
442 if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
443 {
444 // is GET method
445 eRet = cpp2uno_call(
446 pCppI, aMemberDescr.get(),
447 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
448 0, 0, // no params
449 gpreg, fpreg, ovrflw, pRegisterReturn );
450 }
451 else
452 {
453 // is SET method
454 typelib_MethodParameter aParam;
455 aParam.pTypeRef =
456 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
457 aParam.bIn = sal_True;
458 aParam.bOut = sal_False;
459
460 eRet = cpp2uno_call(
461 pCppI, aMemberDescr.get(),
462 0, // indicates void return
463 1, &aParam,
464 gpreg, fpreg, ovrflw, pRegisterReturn );
465 }
466 break;
467 }
468 case typelib_TypeClass_INTERFACE_METHOD:
469 {
470 // is METHOD
471 switch (nFunctionIndex)
472 {
473 case 1: // acquire()
474 pCppI->acquireProxy(); // non virtual call!
475 eRet = typelib_TypeClass_VOID;
476 break;
477 case 2: // release()
478 pCppI->releaseProxy(); // non virtual call!
479 eRet = typelib_TypeClass_VOID;
480 break;
481 case 0: // queryInterface() opt
482 {
483 typelib_TypeDescription * pTD = 0;
484 TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() );
485 if (pTD)
486 {
487 XInterface * pInterface = 0;
488 (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
489 pCppI->getBridge()->getCppEnv(),
490 (void **)&pInterface, pCppI->getOid().pData,
491 (typelib_InterfaceTypeDescription *)pTD );
492
493 if (pInterface)
494 {
495 ::uno_any_construct(
496 reinterpret_cast< uno_Any * >( gpreg[0] ),
497 &pInterface, pTD, cpp_acquire );
498 pInterface->release();
499 TYPELIB_DANGER_RELEASE( pTD );
500 *(void **)pRegisterReturn = gpreg[0];
501 eRet = typelib_TypeClass_ANY;
502 break;
503 }
504 TYPELIB_DANGER_RELEASE( pTD );
505 }
506 } // else perform queryInterface()
507 default:
508 eRet = cpp2uno_call(
509 pCppI, aMemberDescr.get(),
510 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
511 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
512 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
513 gpreg, fpreg, ovrflw, pRegisterReturn );
514 }
515 break;
516 }
517 default:
518 {
519 #ifdef CMC_DEBUG
520 fprintf(stderr, "screwed\n");
521 #endif
522
523 throw RuntimeException(
524 rtl::OUString::createFromAscii("no member description found!"),
525 (XInterface *)pThis );
526 // is here for dummy
527 eRet = typelib_TypeClass_VOID;
528 }
529 }
530
531 #ifdef CMC_DEBUG
532 fprintf(stderr, "end of cpp_mediate\n");
533 #endif
534 return eRet;
535 }
536
537 extern "C" void privateSnippetExecutor( ... );
538 #if 0
539 {
540 sal_uInt64 gpreg[ppc64::MAX_GPR_REGS];
541
542 register long r3 asm("r3"); gpreg[0] = r3;
543 register long r4 asm("r4"); gpreg[1] = r4;
544 register long r5 asm("r5"); gpreg[2] = r5;
545 register long r6 asm("r6"); gpreg[3] = r6;
546 register long r7 asm("r7"); gpreg[4] = r7;
547 register long r8 asm("r8"); gpreg[5] = r8;
548 register long r9 asm("r9"); gpreg[6] = r9;
549 register long r10 asm("r10"); gpreg[7] = r10;
550
551 double fpreg[ppc64::MAX_SSE_REGS];
552
553 __asm__ __volatile__ (
554 "stfd 1, 0(%0)\t\n"
555 "stfd 2, 8(%0)\t\n"
556 "stfd 3, 16(%0)\t\n"
557 "stfd 4, 24(%0)\t\n"
558 "stfd 5, 32(%0)\t\n"
559 "stfd 6, 40(%0)\t\n"
560 "stfd 7, 48(%0)\t\n"
561 "stfd 8, 56(%0)\t\n"
562 "stfd 9, 64(%0)\t\n"
563 "stfd 10, 72(%0)\t\n"
564 "stfd 11, 80(%0)\t\n"
565 "stfd 12, 88(%0)\t\n"
566 "stfd 13, 96(%0)\t\n"
567 : : "r" (fpreg)
568 : "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7", "fr8", "fr9",
569 "fr10", "fr11", "fr12", "fr13"
570 );
571
572 register long r11 asm("r11");
573 const long nOffsetAndIndex = r11;
574
575 register long r1 asm("r1");
576 const long sp = r1;
577
578 #if defined(_CALL_ELF) && _CALL_ELF == 2
579 volatile long nRegReturn[2];
580 #else
581 volatile long nRegReturn[1];
582 #endif
583
584 typelib_TypeClass aType =
585 cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, sp, (sal_Int64*)nRegReturn);
586
587 switch( aType )
588 {
589 case typelib_TypeClass_VOID:
590 break;
591 case typelib_TypeClass_BOOLEAN:
592 case typelib_TypeClass_BYTE:
593 __asm__( "lbz 3,%0\n\t"
594 : : "m" (nRegReturn[0]) );
595 break;
596 case typelib_TypeClass_CHAR:
597 case typelib_TypeClass_UNSIGNED_SHORT:
598 __asm__( "lhz 3,%0\n\t"
599 : : "m" (nRegReturn[0]) );
600 break;
601 case typelib_TypeClass_SHORT:
602 __asm__( "lha 3,%0\n\t"
603 : : "m" (nRegReturn[0]) );
604 break;
605 case typelib_TypeClass_ENUM:
606 case typelib_TypeClass_UNSIGNED_LONG:
607 __asm__( "lwz 3,%0\n\t"
608 : : "m"(nRegReturn[0]) );
609 break;
610 case typelib_TypeClass_LONG:
611 __asm__( "lwa 3,%0\n\t"
612 : : "m"(nRegReturn[0]) );
613 break;
614 case typelib_TypeClass_FLOAT:
615 __asm__( "lfs 1,%0\n\t"
616 : : "m" (*((float*)nRegReturn)) );
617 break;
618 case typelib_TypeClass_DOUBLE:
619 __asm__( "lfd 1,%0\n\t"
620 : : "m" (*((double*)nRegReturn)) );
621 break;
622 default:
623 __asm__( "ld 3,%0\n\t"
624 : : "m" (nRegReturn[0]) );
625 #if defined(_CALL_ELF) && _CALL_ELF == 2
626 __asm__( "ld 4,%0\n\t"
627 : : "m" (nRegReturn[1]) );
628 #endif
629 break;
630 }
631 }
632 #endif
633
634 #if defined(_CALL_ELF) && _CALL_ELF == 2
635 const int codeSnippetSize = 32;
636 #else
637 const int codeSnippetSize = 24;
638 #endif
639
codeSnippet(unsigned char * code,sal_Int32 nFunctionIndex,sal_Int32 nVtableOffset,bool simpleRetType)640 unsigned char * codeSnippet( unsigned char * code, sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset,
641 bool simpleRetType)
642 {
643 #ifdef CMC_DEBUG
644 fprintf(stderr,"in codeSnippet functionIndex is %x\n", nFunctionIndex);
645 fprintf(stderr,"in codeSnippet vtableOffset is %x\n", nVtableOffset);
646 #endif
647
648 sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex );
649
650 if ( !simpleRetType )
651 nOffsetAndIndex |= 0x80000000;
652 #if defined(_CALL_ELF) && _CALL_ELF == 2
653 unsigned int *raw = (unsigned int *)&code[0];
654
655 raw[0] = 0xe96c0018; /* 0: ld 11,2f-0b(12) */
656 raw[1] = 0xe98c0010; /* ld 12,1f-0b(12) */
657 raw[2] = 0x7d8903a6; /* mtctr 12 */
658 raw[3] = 0x4e800420; /* bctr */
659 /* 1: .quad function_addr */
660 /* 2: .quad context */
661 *(void **)&raw[4] = (void *)privateSnippetExecutor;
662 *(void **)&raw[6] = (void*)nOffsetAndIndex;
663 #else
664 void ** raw = (void **)&code[0];
665 memcpy(raw, (char*) privateSnippetExecutor, 16);
666 raw[2] = (void*) nOffsetAndIndex;
667 #endif
668 #ifdef CMC_DEBUG
669 fprintf(stderr, "in: offset/index is %x %x %d, %lx\n",
670 nFunctionIndex, nVtableOffset, !simpleRetType, raw[2]);
671 #endif
672 return (code + codeSnippetSize);
673 }
674
675 }
676
flushCode(unsigned char const * bptr,unsigned char const * eptr)677 void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const * bptr, unsigned char const * eptr)
678 {
679 int const lineSize = 32;
680 for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) {
681 __asm__ volatile ("dcbst 0, %0" : : "r"(p) : "memory");
682 }
683 __asm__ volatile ("sync" : : : "memory");
684 for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) {
685 __asm__ volatile ("icbi 0, %0" : : "r"(p) : "memory");
686 }
687 __asm__ volatile ("isync" : : : "memory");
688 }
689
690 struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
691
692 bridges::cpp_uno::shared::VtableFactory::Slot *
mapBlockToVtable(void * block)693 bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
694 {
695 return static_cast< Slot * >(block) + 2;
696 }
697
getBlockSize(sal_Int32 slotCount)698 sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
699 sal_Int32 slotCount)
700 {
701 return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
702 }
703
704 bridges::cpp_uno::shared::VtableFactory::Slot *
initializeBlock(void * block,sal_Int32 slotCount)705 bridges::cpp_uno::shared::VtableFactory::initializeBlock(
706 void * block, sal_Int32 slotCount)
707 {
708 Slot * slots = mapBlockToVtable(block);
709 slots[-2].fn = 0;
710 slots[-1].fn = 0;
711 return slots + slotCount;
712 }
713
addLocalFunctions(Slot ** slots,unsigned char * code,sal_PtrDiff writetoexecdiff,typelib_InterfaceTypeDescription const * type,sal_Int32 functionOffset,sal_Int32 functionCount,sal_Int32 vtableOffset)714 unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
715 Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
716 typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
717 sal_Int32 functionCount, sal_Int32 vtableOffset)
718 {
719 (*slots) -= functionCount;
720 Slot * s = *slots;
721 #ifdef CMC_DEBUG
722 fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
723 fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
724 #endif
725
726 for (sal_Int32 i = 0; i < type->nMembers; ++i) {
727 typelib_TypeDescription * member = 0;
728 TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
729 OSL_ASSERT(member != 0);
730 switch (member->eTypeClass) {
731 case typelib_TypeClass_INTERFACE_ATTRIBUTE:
732 // Getter:
733 (s++)->fn = code + writetoexecdiff;
734 code = codeSnippet(
735 code, functionOffset++, vtableOffset,
736 !ppc64::return_in_hidden_param(
737 reinterpret_cast<
738 typelib_InterfaceAttributeTypeDescription * >(
739 member)->pAttributeTypeRef));
740
741 // Setter:
742 if (!reinterpret_cast<
743 typelib_InterfaceAttributeTypeDescription * >(
744 member)->bReadOnly)
745 {
746 (s++)->fn = code + writetoexecdiff;
747 code = codeSnippet(code, functionOffset++, vtableOffset, true);
748 }
749 break;
750
751 case typelib_TypeClass_INTERFACE_METHOD:
752 (s++)->fn = code + writetoexecdiff;
753 code = codeSnippet(
754 code, functionOffset++, vtableOffset,
755 !ppc64::return_in_hidden_param(
756 reinterpret_cast<
757 typelib_InterfaceMethodTypeDescription * >(
758 member)->pReturnTypeRef));
759 break;
760
761 default:
762 OSL_ASSERT(false);
763 break;
764 }
765 TYPELIB_DANGER_RELEASE(member);
766 }
767 return code;
768 }
769
770 /* vi:set tabstop=4 shiftwidth=4 expandtab: */
771