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