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 38 using namespace ::com::sun::star::uno; 39 40 namespace 41 { 42 43 //================================================================================================== 44 static typelib_TypeClass cpp2uno_call( 45 bridges::cpp_uno::shared::CppInterfaceProxy * pThis, 46 const typelib_TypeDescription * pMemberTypeDescr, 47 typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return 48 sal_Int32 nParams, typelib_MethodParameter * pParams, 49 void ** gpreg, void ** fpreg, void ** ovrflw, 50 sal_Int64 * pRegisterReturn /* space for register return */ ) 51 { 52 53 // gpreg: [ret *], this, [gpr params] 54 // fpreg: [fpr params] 55 // ovrflw: [gpr or fpr params (space for entire parameter list in structure format properly aligned)] 56 57 // return 58 typelib_TypeDescription * pReturnTypeDescr = 0; 59 if (pReturnTypeRef) 60 TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); 61 62 void * pUnoReturn = 0; 63 void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need 64 65 sal_Int32 ngpreg = 0; 66 sal_Int32 nfpreg = 0; 67 68 69 if (pReturnTypeDescr) 70 { 71 if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr )) 72 pUnoReturn = pRegisterReturn; // direct way for simple types 73 else // complex return via ptr (pCppReturn) 74 { 75 pCppReturn = *gpreg; 76 ngpreg++; 77 ++ovrflw; 78 79 pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) 80 ? alloca( pReturnTypeDescr->nSize ) 81 : pCppReturn); // direct way 82 } 83 } 84 // pop this 85 ngpreg++; 86 ++ovrflw; 87 88 // after handling optional return pointer and "this" 89 // make use of the space that is allocated to store all parameters in the callers stack 90 // by comying the proper registers filled with parameters to that space 91 char * pCppStack = (char *)ovrflw; 92 93 94 sal_Int32 nPos; 95 96 for ( nPos = 0; nPos < nParams; ++nPos ) 97 { 98 const typelib_MethodParameter & rParam = pParams[nPos]; 99 if (rParam.bOut) 100 { 101 if (ngpreg < 8) 102 { 103 *(sal_Int32 *)pCppStack = ((sal_Int32 *)gpreg)[ngpreg++]; 104 } 105 pCppStack += sizeof (sal_Int32); 106 } 107 else 108 { 109 switch (rParam.pTypeRef->eTypeClass) 110 { 111 case typelib_TypeClass_FLOAT: 112 if (nfpreg < 13) 113 { 114 *(float *)pCppStack = ((double *)fpreg)[nfpreg++]; 115 } 116 pCppStack += sizeof (float); 117 ngpreg += 1; 118 break; 119 case typelib_TypeClass_DOUBLE: 120 if (nfpreg < 13) 121 { 122 *(double *)pCppStack = ((double *)fpreg)[nfpreg++]; 123 } 124 pCppStack += sizeof (double); 125 ngpreg += 2; 126 break; 127 case typelib_TypeClass_UNSIGNED_HYPER: 128 case typelib_TypeClass_HYPER: 129 if (ngpreg < 8) 130 { 131 *(sal_Int32 *)pCppStack = ((sal_Int32 *)gpreg)[ngpreg++]; 132 } 133 pCppStack += sizeof (sal_Int32); 134 // fall through on purpose 135 default: 136 if (ngpreg < 8) 137 { 138 *(sal_Int32 *)pCppStack = ((sal_Int32 *)gpreg)[ngpreg++]; 139 } 140 pCppStack += sizeof (sal_Int32); 141 } 142 } 143 } 144 145 // now the stack has all of the paramters stored in it ready to be processed 146 // so we are ready to build the uno call stack 147 pCppStack = (char *)ovrflw; 148 149 // stack space 150 OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" ); 151 152 // parameters 153 void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams ); 154 void ** pCppArgs = pUnoArgs + nParams; 155 156 // indizes of values this have to be converted (interface conversion cpp<=>uno) 157 sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams)); 158 159 // type descriptions for reconversions 160 typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams)); 161 162 sal_Int32 nTempIndizes = 0; 163 164 for ( nPos = 0; nPos < nParams; ++nPos ) 165 { 166 const typelib_MethodParameter & rParam = pParams[nPos]; 167 typelib_TypeDescription * pParamTypeDescr = 0; 168 TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); 169 170 if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) 171 // value 172 { 173 switch (pParamTypeDescr->eTypeClass) 174 { 175 case typelib_TypeClass_BOOLEAN: 176 case typelib_TypeClass_BYTE: 177 pCppArgs[nPos] = pCppStack +3; 178 pUnoArgs[nPos] = pCppStack +3; 179 break; 180 case typelib_TypeClass_CHAR: 181 case typelib_TypeClass_SHORT: 182 case typelib_TypeClass_UNSIGNED_SHORT: 183 pCppArgs[nPos] = pCppStack +2; 184 pUnoArgs[nPos] = pCppStack +2; 185 break; 186 case typelib_TypeClass_HYPER: 187 case typelib_TypeClass_UNSIGNED_HYPER: 188 case typelib_TypeClass_DOUBLE: 189 pCppArgs[nPos] = pCppStack; 190 pUnoArgs[nPos] = pCppStack; 191 pCppStack += sizeof(sal_Int32); // extra long (two regs) 192 break; 193 default: 194 pCppArgs[nPos] = pCppStack; 195 pUnoArgs[nPos] = pCppStack; 196 } 197 // no longer needed 198 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 199 } 200 else // ptr to complex value | ref 201 { 202 pCppArgs[nPos] = *(void **)pCppStack; 203 204 if (! rParam.bIn) // is pure out 205 { 206 // uno out is unconstructed mem! 207 pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ); 208 pTempIndizes[nTempIndizes] = nPos; 209 // will be released at reconversion 210 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; 211 } 212 // is in/inout 213 else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr )) 214 { 215 uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ), 216 *(void **)pCppStack, pParamTypeDescr, 217 pThis->getBridge()->getCpp2Uno() ); 218 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted 219 // will be released at reconversion 220 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; 221 } 222 else // direct way 223 { 224 pUnoArgs[nPos] = *(void **)pCppStack; 225 // no longer needed 226 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 227 } 228 } 229 pCppStack += sizeof(sal_Int32); // standard parameter length 230 } 231 232 233 // ExceptionHolder 234 uno_Any aUnoExc; // Any will be constructed by callee 235 uno_Any * pUnoExc = &aUnoExc; 236 237 // invoke uno dispatch call 238 (*pThis->getUnoI()->pDispatcher)( 239 pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc ); 240 241 // in case an exception occured... 242 if (pUnoExc) 243 { 244 // destruct temporary in/inout params 245 for ( ; nTempIndizes--; ) 246 { 247 sal_Int32 nIndex = pTempIndizes[nTempIndizes]; 248 249 if (pParams[nIndex].bIn) // is in/inout => was constructed 250 uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 ); 251 TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] ); 252 } 253 if (pReturnTypeDescr) 254 TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); 255 256 CPPU_CURRENT_NAMESPACE::raiseException( 257 &aUnoExc, pThis->getBridge()->getUno2Cpp() ); 258 // has to destruct the any 259 // is here for dummy 260 return typelib_TypeClass_VOID; 261 } 262 else // else no exception occured... 263 { 264 // temporary params 265 for ( ; nTempIndizes--; ) 266 { 267 sal_Int32 nIndex = pTempIndizes[nTempIndizes]; 268 typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes]; 269 270 if (pParams[nIndex].bOut) // inout/out 271 { 272 // convert and assign 273 uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); 274 uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr, 275 pThis->getBridge()->getUno2Cpp() ); 276 } 277 // destroy temp uno param 278 uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); 279 280 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 281 } 282 // return 283 if (pCppReturn) // has complex return 284 { 285 if (pUnoReturn != pCppReturn) // needs reconversion 286 { 287 uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr, 288 pThis->getBridge()->getUno2Cpp() ); 289 // destroy temp uno return 290 uno_destructData( pUnoReturn, pReturnTypeDescr, 0 ); 291 } 292 // complex return ptr is set to return reg 293 *(void **)pRegisterReturn = pCppReturn; 294 } 295 if (pReturnTypeDescr) 296 { 297 typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass; 298 TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); 299 return eRet; 300 } 301 else 302 return typelib_TypeClass_VOID; 303 } 304 } 305 306 307 //================================================================================================== 308 static typelib_TypeClass cpp_mediate( 309 sal_Int32 nFunctionIndex, 310 sal_Int32 nVtableOffset, 311 void ** gpreg, void ** fpreg, void ** ovrflw, 312 sal_Int64 * pRegisterReturn /* space for register return */ ) 313 { 314 OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" ); 315 316 // gpreg: [ret *], this, [other gpr params] 317 // fpreg: [fpr params] 318 // ovrflw: [gpr or fpr params (in space allocated for all params properly aligned)] 319 320 void * pThis; 321 if( nFunctionIndex & 0x80000000 ) 322 { 323 nFunctionIndex &= 0x7fffffff; 324 pThis = gpreg[1]; 325 } 326 else 327 { 328 pThis = gpreg[0]; 329 } 330 331 pThis = static_cast< char * >(pThis) - nVtableOffset; 332 bridges::cpp_uno::shared::CppInterfaceProxy * pCppI 333 = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(pThis); 334 335 336 typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr(); 337 338 OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" ); 339 if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex) 340 { 341 throw RuntimeException( 342 rtl::OUString::createFromAscii("illegal vtable index!"), 343 (XInterface *)pThis ); 344 } 345 346 // determine called method 347 sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex]; 348 OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" ); 349 350 TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); 351 352 typelib_TypeClass eRet; 353 switch (aMemberDescr.get()->eTypeClass) 354 { 355 case typelib_TypeClass_INTERFACE_ATTRIBUTE: 356 { 357 if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex) 358 { 359 // is GET method 360 eRet = cpp2uno_call( 361 pCppI, aMemberDescr.get(), 362 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef, 363 0, 0, // no params 364 gpreg, fpreg, ovrflw, pRegisterReturn ); 365 } 366 else 367 { 368 // is SET method 369 typelib_MethodParameter aParam; 370 aParam.pTypeRef = 371 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef; 372 aParam.bIn = sal_True; 373 aParam.bOut = sal_False; 374 375 eRet = cpp2uno_call( 376 pCppI, aMemberDescr.get(), 377 0, // indicates void return 378 1, &aParam, 379 gpreg, fpreg, ovrflw, pRegisterReturn ); 380 } 381 break; 382 } 383 case typelib_TypeClass_INTERFACE_METHOD: 384 { 385 // is METHOD 386 switch (nFunctionIndex) 387 { 388 case 1: // acquire() 389 pCppI->acquireProxy(); // non virtual call! 390 eRet = typelib_TypeClass_VOID; 391 break; 392 case 2: // release() 393 pCppI->releaseProxy(); // non virtual call! 394 eRet = typelib_TypeClass_VOID; 395 break; 396 case 0: // queryInterface() opt 397 { 398 typelib_TypeDescription * pTD = 0; 399 TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() ); 400 if (pTD) 401 { 402 XInterface * pInterface = 0; 403 (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)( 404 pCppI->getBridge()->getCppEnv(), 405 (void **)&pInterface, pCppI->getOid().pData, (typelib_InterfaceTypeDescription *)pTD ); 406 407 if (pInterface) 408 { 409 ::uno_any_construct( 410 reinterpret_cast< uno_Any * >( gpreg[0] ), 411 &pInterface, pTD, cpp_acquire ); 412 pInterface->release(); 413 TYPELIB_DANGER_RELEASE( pTD ); 414 *(void **)pRegisterReturn = gpreg[0]; 415 eRet = typelib_TypeClass_ANY; 416 break; 417 } 418 TYPELIB_DANGER_RELEASE( pTD ); 419 } 420 } // else perform queryInterface() 421 default: 422 eRet = cpp2uno_call( 423 pCppI, aMemberDescr.get(), 424 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef, 425 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams, 426 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams, 427 gpreg, fpreg, ovrflw, pRegisterReturn ); 428 } 429 break; 430 } 431 default: 432 { 433 throw RuntimeException( 434 rtl::OUString::createFromAscii("no member description found!"), 435 (XInterface *)pThis ); 436 // is here for dummy 437 eRet = typelib_TypeClass_VOID; 438 } 439 } 440 441 return eRet; 442 } 443 444 //================================================================================================== 445 /** 446 * is called on incoming vtable calls 447 * (called by asm snippets) 448 */ 449 static void cpp_vtable_call( int nFunctionIndex, int nVtableOffset, void** gpregptr, void** fpregptr, void** ovrflw) 450 { 451 sal_Int32 gpreg[8]; 452 double fpreg[13]; 453 454 // FIXME: why are we restoring the volatile ctr register here 455 sal_Int32 ctrsave = ((sal_Int32*)gpregptr)[-1]; 456 457 memcpy( gpreg, gpregptr, 32); 458 memcpy( fpreg, fpregptr, 104); 459 460 volatile long nRegReturn[2]; 461 462 // sal_Bool bComplex = nFunctionIndex & 0x80000000 ? sal_True : sal_False; 463 464 typelib_TypeClass aType = 465 cpp_mediate( nFunctionIndex, nVtableOffset, (void**)gpreg, (void**)fpreg, ovrflw, (sal_Int64*)nRegReturn ); 466 467 // FIXME: why are we restoring the volatile ctr register here 468 // FIXME: and why are we putting back the values for r4, r5, and r6 as well 469 // FIXME: this makes no sense to me, all of these registers are volatile! 470 __asm__( "lwz r4, %0\n\t" 471 "mtctr r4\n\t" 472 "lwz r4, %1\n\t" 473 "lwz r5, %2\n\t" 474 "lwz r6, %3\n\t" 475 : : "m"(ctrsave), "m"(gpreg[1]), "m"(gpreg[2]), "m"(gpreg[3]) ); 476 477 switch( aType ) 478 { 479 480 // move return value into register space 481 // (will be loaded by machine code snippet) 482 483 case typelib_TypeClass_BOOLEAN: 484 case typelib_TypeClass_BYTE: 485 __asm__( "lbz r3,%0\n\t" : : 486 "m"(nRegReturn[0]) ); 487 break; 488 489 case typelib_TypeClass_CHAR: 490 case typelib_TypeClass_SHORT: 491 case typelib_TypeClass_UNSIGNED_SHORT: 492 __asm__( "lhz r3,%0\n\t" : : 493 "m"(nRegReturn[0]) ); 494 break; 495 496 case typelib_TypeClass_FLOAT: 497 __asm__( "lfs f1,%0\n\t" : : 498 "m" (*((float*)nRegReturn)) ); 499 break; 500 501 case typelib_TypeClass_DOUBLE: 502 __asm__( "lfd f1,%0\n\t" : : 503 "m" (*((double*)nRegReturn)) ); 504 break; 505 506 case typelib_TypeClass_HYPER: 507 case typelib_TypeClass_UNSIGNED_HYPER: 508 __asm__( "lwz r4,%0\n\t" : : 509 "m"(nRegReturn[1]) ); // fall through 510 511 default: 512 __asm__( "lwz r3,%0\n\t" : : 513 "m"(nRegReturn[0]) ); 514 break; 515 } 516 } 517 518 519 int const codeSnippetSize = 136; 520 521 unsigned char * codeSnippet( unsigned char * code, sal_Int32 functionIndex, 522 sal_Int32 vtableOffset, bool simpleRetType ) 523 { 524 if (! simpleRetType ) 525 functionIndex |= 0x80000000; 526 527 // OSL_ASSERT( sizeof (long) == 4 ); 528 529 // FIXME: why are we leaving an 8k gap in the stack here 530 // FIXME: is this to allow room for signal handling frames? 531 // FIXME: seems like overkill here but this is what was done for Mac OSX for gcc2 532 // FIXME: also why no saving of the non-volatile CR pieces here, to be safe 533 // FIXME: we probably should 534 535 /* generate this code */ 536 537 // # so first save gpr 3 to gpr 10 (aligned to 4) 538 // stw r3, -8000(r1) 539 // stw r4, -7996(r1) 540 // stw r5, -7992(r1) 541 // stw r6, -7988(r1) 542 // stw r7, -7984(r1) 543 // stw r8, -7980(r1) 544 // stw r9, -7976(r1) 545 // stw r10,-7972(r1) 546 547 // # next save fpr 1 to fpr 13 (aligned to 8) 548 // stfd f1, -7968(r1) 549 // stfd f2, -7960(r1) 550 // stfd f3, -7952(r1) 551 // stfd f4, -7944(r1) 552 // stfd f5, -7936(r1) 553 // stfd f6, -7928(r1) 554 // stfd f7, -7920(r1) 555 // stfd f8, -7912(r1) 556 // stfd f9, -7904(r1) 557 // stfd f10,-7896(r1) 558 // stfd f11,-7888(r1) 559 // stfd f12,-7880(r1) 560 // stfd f13,-7872(r1) 561 562 // FIXME: ctr is volatile, while are we saving it and not CR? 563 // mfctr r3 564 // stw r3, -8004(r1) 565 566 // # now here is where cpp_vtable_call must go 567 // lis r3,0xdead 568 // ori r3,r3,0xbeef 569 // mtctr r3 570 571 // # now load up the functionIndex number 572 // lis r3, 0xdead 573 // ori r3,r3,0xbeef 574 575 // # now load up the vtableOffset 576 // lis r4, 0xdead 577 // ori r4,r4,0xbeef 578 579 // #now load up the pointer to the saved gpr registers 580 // addi r5,r1,-8000 581 582 // #now load up the pointer to the saved fpr registers 583 // addi r6,r1,-7968 584 585 // #now load up the pointer to the overflow call stack 586 // addi r7,r1,24 # frame pointer plus 24 587 588 // bctr 589 590 unsigned long * p = (unsigned long *) code; 591 592 * p++ = 0x9061e0c0; 593 * p++ = 0x9081e0c4; 594 * p++ = 0x90a1e0c8; 595 * p++ = 0x90c1e0cc; 596 * p++ = 0x90e1e0d0; 597 * p++ = 0x9101e0d4; 598 * p++ = 0x9121e0d8; 599 * p++ = 0x9141e0dc; 600 * p++ = 0xd821e0e0; 601 * p++ = 0xd841e0e8; 602 * p++ = 0xd861e0f0; 603 * p++ = 0xd881e0f8; 604 * p++ = 0xd8a1e100; 605 * p++ = 0xd8c1e108; 606 * p++ = 0xd8e1e110; 607 * p++ = 0xd901e118; 608 * p++ = 0xd921e120; 609 * p++ = 0xd941e128; 610 * p++ = 0xd961e130; 611 * p++ = 0xd981e138; 612 * p++ = 0xd9a1e140; 613 * p++ = 0x7c6902a6; 614 * p++ = 0x9061e0bc; 615 * p++ = 0x3c600000 | (((unsigned long)cpp_vtable_call) >> 16); 616 * p++ = 0x60630000 | (((unsigned long)cpp_vtable_call) & 0x0000FFFF); 617 * p++ = 0x7c6903a6; 618 * p++ = 0x3c600000 | (((unsigned long)functionIndex) >> 16); 619 * p++ = 0x60630000 | (((unsigned long)functionIndex) & 0x0000FFFF); 620 * p++ = 0x3c800000 | (((unsigned long)vtableOffset) >> 16); 621 * p++ = 0x60840000 | (((unsigned long)vtableOffset) & 0x0000FFFF); 622 * p++ = 0x38a1e0c0; 623 * p++ = 0x38c1e0e0; 624 * p++ = 0x38e10018; 625 * p++ = 0x4e800420; 626 627 return (code + codeSnippetSize); 628 629 } 630 631 632 } 633 634 void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const * bptr, unsigned char const * eptr) 635 { 636 int const lineSize = 32; 637 for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) { 638 __asm__ volatile ("dcbst 0, %0" : : "r"(p) : "memory"); 639 } 640 __asm__ volatile ("sync" : : : "memory"); 641 for (unsigned char const * p = bptr; p < eptr + lineSize; p += lineSize) { 642 __asm__ volatile ("icbi 0, %0" : : "r"(p) : "memory"); 643 } 644 __asm__ volatile ("isync" : : : "memory"); 645 } 646 647 struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; }; 648 649 bridges::cpp_uno::shared::VtableFactory::Slot * 650 bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block) 651 { 652 return static_cast< Slot * >(block) + 2; 653 } 654 655 sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize( 656 sal_Int32 slotCount) 657 { 658 return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize; 659 } 660 661 bridges::cpp_uno::shared::VtableFactory::Slot * 662 bridges::cpp_uno::shared::VtableFactory::initializeBlock( 663 void * block, sal_Int32 slotCount) 664 { 665 Slot * slots = mapBlockToVtable(block); 666 slots[-2].fn = 0; 667 slots[-1].fn = 0; 668 return slots + slotCount; 669 } 670 671 unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions( 672 Slot ** slots, unsigned char * code, 673 typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset, 674 sal_Int32 functionCount, sal_Int32 vtableOffset) 675 { 676 (*slots) -= functionCount; 677 Slot * s = *slots; 678 679 // fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset); 680 // fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset); 681 // fflush(stderr); 682 683 for (sal_Int32 i = 0; i < type->nMembers; ++i) { 684 typelib_TypeDescription * member = 0; 685 TYPELIB_DANGER_GET(&member, type->ppMembers[i]); 686 OSL_ASSERT(member != 0); 687 switch (member->eTypeClass) { 688 case typelib_TypeClass_INTERFACE_ATTRIBUTE: 689 // Getter: 690 (s++)->fn = code; 691 code = codeSnippet( 692 code, functionOffset++, vtableOffset, 693 bridges::cpp_uno::shared::isSimpleType( 694 reinterpret_cast< 695 typelib_InterfaceAttributeTypeDescription * >( 696 member)->pAttributeTypeRef)); 697 698 // Setter: 699 if (!reinterpret_cast< 700 typelib_InterfaceAttributeTypeDescription * >( 701 member)->bReadOnly) 702 { 703 (s++)->fn = code; 704 code = codeSnippet(code, functionOffset++, vtableOffset, true); 705 } 706 break; 707 708 case typelib_TypeClass_INTERFACE_METHOD: 709 (s++)->fn = code; 710 code = codeSnippet( 711 code, functionOffset++, vtableOffset, 712 bridges::cpp_uno::shared::isSimpleType( 713 reinterpret_cast< 714 typelib_InterfaceMethodTypeDescription * >( 715 member)->pReturnTypeRef)); 716 break; 717 718 default: 719 OSL_ASSERT(false); 720 break; 721 } 722 TYPELIB_DANGER_RELEASE(member); 723 } 724 return code; 725 } 726 727