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See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_bridges.hxx" 30 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <string.h> 34 #include <rtl/alloc.h> 35 36 #include <com/sun/star/uno/genfunc.hxx> 37 #include "com/sun/star/uno/RuntimeException.hpp" 38 #include <uno/data.h> 39 40 #include <bridges/cpp_uno/shared/bridge.hxx> 41 #include <bridges/cpp_uno/shared/types.hxx> 42 #include "bridges/cpp_uno/shared/unointerfaceproxy.hxx" 43 #include "bridges/cpp_uno/shared/vtables.hxx" 44 45 #include "abi.hxx" 46 #include "share.hxx" 47 48 using namespace ::rtl; 49 using namespace ::com::sun::star::uno; 50 51 //================================================================================================== 52 static void callVirtualMethod(void * pThis, sal_uInt32 nVtableIndex, 53 void * pRegisterReturn, typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn, 54 sal_uInt64 *pStack, sal_uInt32 nStack, 55 sal_uInt64 *pGPR, sal_uInt32 nGPR, 56 double *pFPR, sal_uInt32 nFPR) __attribute__((noinline)); 57 58 static void callVirtualMethod(void * pThis, sal_uInt32 nVtableIndex, 59 void * pRegisterReturn, typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn, 60 sal_uInt64 *pStack, sal_uInt32 nStack, 61 sal_uInt64 *pGPR, sal_uInt32 nGPR, 62 double *pFPR, sal_uInt32 nFPR) 63 { 64 #if OSL_DEBUG_LEVEL > 1 65 // Let's figure out what is really going on here 66 { 67 fprintf( stderr, "= callVirtualMethod() =\nGPR's (%d): ", nGPR ); 68 for ( int i = 0; i < nGPR; ++i ) 69 fprintf( stderr, "0x%lx, ", pGPR[i] ); 70 fprintf( stderr, "\nFPR's (%d): ", nFPR ); 71 for ( int i = 0; i < nFPR; ++i ) 72 fprintf( stderr, "%f, ", pFPR[i] ); 73 fprintf( stderr, "\nStack (%d): ", nStack ); 74 for ( int i = 0; i < nStack; ++i ) 75 fprintf( stderr, "0x%lx, ", pStack[i] ); 76 fprintf( stderr, "\n" ); 77 } 78 #endif 79 80 // The call instruction within the asm section of callVirtualMethod may throw 81 // exceptions. So that the compiler handles this correctly, it is important 82 // that (a) callVirtualMethod might call dummy_can_throw_anything (although this 83 // never happens at runtime), which in turn can throw exceptions, and (b) 84 // callVirtualMethod is not inlined at its call site (so that any exceptions are 85 // caught which are thrown from the instruction calling callVirtualMethod): 86 if ( !pThis ) 87 CPPU_CURRENT_NAMESPACE::dummy_can_throw_anything( "xxx" ); // address something 88 89 // Should not happen, but... 90 if ( nFPR > x86_64::MAX_SSE_REGS ) 91 nFPR = x86_64::MAX_SSE_REGS; 92 if ( nGPR > x86_64::MAX_GPR_REGS ) 93 nGPR = x86_64::MAX_GPR_REGS; 94 95 // Get pointer to method 96 sal_uInt64 pMethod = *((sal_uInt64 *)pThis); 97 pMethod += 8 * nVtableIndex; 98 pMethod = *((sal_uInt64 *)pMethod); 99 100 // Load parameters to stack, if necessary 101 if ( nStack ) 102 { 103 // 16-bytes aligned 104 sal_uInt32 nStackBytes = ( ( nStack + 1 ) >> 1 ) * 16; 105 sal_uInt64 *pCallStack = (sal_uInt64 *) __builtin_alloca( nStackBytes ); 106 memcpy( pCallStack, pStack, nStackBytes ); 107 } 108 109 // Return values 110 sal_uInt64 rax; 111 sal_uInt64 rdx; 112 double xmm0; 113 114 asm volatile ( 115 116 // Fill the xmm registers 117 "movq %2, %%rax\n\t" 118 119 "movsd (%%rax), %%xmm0\n\t" 120 "movsd 8(%%rax), %%xmm1\n\t" 121 "movsd 16(%%rax), %%xmm2\n\t" 122 "movsd 24(%%rax), %%xmm3\n\t" 123 "movsd 32(%%rax), %%xmm4\n\t" 124 "movsd 40(%%rax), %%xmm5\n\t" 125 "movsd 48(%%rax), %%xmm6\n\t" 126 "movsd 56(%%rax), %%xmm7\n\t" 127 128 // Fill the general purpose registers 129 "movq %1, %%rax\n\t" 130 131 "movq (%%rax), %%rdi\n\t" 132 "movq 8(%%rax), %%rsi\n\t" 133 "movq 16(%%rax), %%rdx\n\t" 134 "movq 24(%%rax), %%rcx\n\t" 135 "movq 32(%%rax), %%r8\n\t" 136 "movq 40(%%rax), %%r9\n\t" 137 138 // Perform the call 139 "movq %0, %%r11\n\t" 140 "movq %3, %%rax\n\t" 141 "call *%%r11\n\t" 142 143 // Fill the return values 144 "movq %%rax, %4\n\t" 145 "movq %%rdx, %5\n\t" 146 "movsd %%xmm0, %6\n\t" 147 : 148 : "m" ( pMethod ), "m" ( pGPR ), "m" ( pFPR ), "m" ( nFPR ), 149 "m" ( rax ), "m" ( rdx ), "m" ( xmm0 ) 150 : "rax", "rdi", "rsi", "rdx", "rcx", "r8", "r9", "r11" 151 ); 152 153 switch (pReturnTypeDescr->eTypeClass) 154 { 155 case typelib_TypeClass_HYPER: 156 case typelib_TypeClass_UNSIGNED_HYPER: 157 *reinterpret_cast<sal_uInt64 *>( pRegisterReturn ) = rax; 158 break; 159 case typelib_TypeClass_LONG: 160 case typelib_TypeClass_UNSIGNED_LONG: 161 case typelib_TypeClass_ENUM: 162 *reinterpret_cast<sal_uInt32 *>( pRegisterReturn ) = *reinterpret_cast<sal_uInt32*>( &rax ); 163 break; 164 case typelib_TypeClass_CHAR: 165 case typelib_TypeClass_SHORT: 166 case typelib_TypeClass_UNSIGNED_SHORT: 167 *reinterpret_cast<sal_uInt16 *>( pRegisterReturn ) = *reinterpret_cast<sal_uInt16*>( &rax ); 168 break; 169 case typelib_TypeClass_BOOLEAN: 170 case typelib_TypeClass_BYTE: 171 *reinterpret_cast<sal_uInt8 *>( pRegisterReturn ) = *reinterpret_cast<sal_uInt8*>( &rax ); 172 break; 173 case typelib_TypeClass_FLOAT: 174 case typelib_TypeClass_DOUBLE: 175 *reinterpret_cast<double *>( pRegisterReturn ) = xmm0; 176 break; 177 default: 178 { 179 sal_Int32 const nRetSize = pReturnTypeDescr->nSize; 180 if (bSimpleReturn && nRetSize <= 16 && nRetSize > 0) 181 { 182 if (nRetSize > 8) 183 static_cast<sal_uInt64 *>(pRegisterReturn)[1] = rdx; 184 static_cast<sal_uInt64 *>(pRegisterReturn)[0] = rax; 185 } 186 break; 187 } 188 } 189 } 190 191 //================================================================================================== 192 193 // Macros for easier insertion of values to registers or stack 194 // pSV - pointer to the source 195 // nr - order of the value [will be increased if stored to register] 196 // pFPR, pGPR - pointer to the registers 197 // pDS - pointer to the stack [will be increased if stored here] 198 199 // The value in %xmm register is already prepared to be retrieved as a float, 200 // thus we treat float and double the same 201 #define INSERT_FLOAT_DOUBLE( pSV, nr, pFPR, pDS ) \ 202 if ( nr < x86_64::MAX_SSE_REGS ) \ 203 pFPR[nr++] = *reinterpret_cast<double *>( pSV ); \ 204 else \ 205 *pDS++ = *reinterpret_cast<sal_uInt64 *>( pSV ); // verbatim! 206 207 #define INSERT_INT64( pSV, nr, pGPR, pDS ) \ 208 if ( nr < x86_64::MAX_GPR_REGS ) \ 209 pGPR[nr++] = *reinterpret_cast<sal_uInt64 *>( pSV ); \ 210 else \ 211 *pDS++ = *reinterpret_cast<sal_uInt64 *>( pSV ); 212 213 #define INSERT_INT32( pSV, nr, pGPR, pDS ) \ 214 if ( nr < x86_64::MAX_GPR_REGS ) \ 215 pGPR[nr++] = *reinterpret_cast<sal_uInt32 *>( pSV ); \ 216 else \ 217 *pDS++ = *reinterpret_cast<sal_uInt32 *>( pSV ); 218 219 #define INSERT_INT16( pSV, nr, pGPR, pDS ) \ 220 if ( nr < x86_64::MAX_GPR_REGS ) \ 221 pGPR[nr++] = *reinterpret_cast<sal_uInt16 *>( pSV ); \ 222 else \ 223 *pDS++ = *reinterpret_cast<sal_uInt16 *>( pSV ); 224 225 #define INSERT_INT8( pSV, nr, pGPR, pDS ) \ 226 if ( nr < x86_64::MAX_GPR_REGS ) \ 227 pGPR[nr++] = *reinterpret_cast<sal_uInt8 *>( pSV ); \ 228 else \ 229 *pDS++ = *reinterpret_cast<sal_uInt8 *>( pSV ); 230 231 //================================================================================================== 232 233 static void cpp_call( 234 bridges::cpp_uno::shared::UnoInterfaceProxy * pThis, 235 bridges::cpp_uno::shared::VtableSlot aVtableSlot, 236 typelib_TypeDescriptionReference * pReturnTypeRef, 237 sal_Int32 nParams, typelib_MethodParameter * pParams, 238 void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc ) 239 { 240 // Maxium space for [complex ret ptr], values | ptr ... 241 // (but will be used less - some of the values will be in pGPR and pFPR) 242 sal_uInt64 *pStack = (sal_uInt64 *)__builtin_alloca( (nParams + 3) * sizeof(sal_uInt64) ); 243 sal_uInt64 *pStackStart = pStack; 244 245 sal_uInt64 pGPR[x86_64::MAX_GPR_REGS]; 246 sal_uInt32 nGPR = 0; 247 248 double pFPR[x86_64::MAX_SSE_REGS]; 249 sal_uInt32 nFPR = 0; 250 251 // Return 252 typelib_TypeDescription * pReturnTypeDescr = 0; 253 TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); 254 OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" ); 255 256 void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion (see below) 257 258 bool bSimpleReturn = true; 259 if ( pReturnTypeDescr ) 260 { 261 if ( x86_64::return_in_hidden_param( pReturnTypeRef ) ) 262 bSimpleReturn = false; 263 264 if ( bSimpleReturn ) 265 pCppReturn = pUnoReturn; // direct way for simple types 266 else 267 { 268 // complex return via ptr 269 pCppReturn = bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )? 270 __builtin_alloca( pReturnTypeDescr->nSize ) : pUnoReturn; 271 INSERT_INT64( &pCppReturn, nGPR, pGPR, pStack ); 272 } 273 } 274 275 // Push "this" pointer 276 void * pAdjustedThisPtr = reinterpret_cast< void ** >( pThis->getCppI() ) + aVtableSlot.offset; 277 INSERT_INT64( &pAdjustedThisPtr, nGPR, pGPR, pStack ); 278 279 // Args 280 void ** pCppArgs = (void **)alloca( 3 * sizeof(void *) * nParams ); 281 // Indizes of values this have to be converted (interface conversion cpp<=>uno) 282 sal_Int32 * pTempIndizes = (sal_Int32 *)(pCppArgs + nParams); 283 // Type descriptions for reconversions 284 typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * nParams)); 285 286 sal_Int32 nTempIndizes = 0; 287 288 for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) 289 { 290 const typelib_MethodParameter & rParam = pParams[nPos]; 291 typelib_TypeDescription * pParamTypeDescr = 0; 292 TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); 293 294 if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) 295 { 296 uno_copyAndConvertData( pCppArgs[nPos] = alloca( 8 ), pUnoArgs[nPos], pParamTypeDescr, 297 pThis->getBridge()->getUno2Cpp() ); 298 299 switch (pParamTypeDescr->eTypeClass) 300 { 301 case typelib_TypeClass_HYPER: 302 case typelib_TypeClass_UNSIGNED_HYPER: 303 INSERT_INT64( pCppArgs[nPos], nGPR, pGPR, pStack ); 304 break; 305 case typelib_TypeClass_LONG: 306 case typelib_TypeClass_UNSIGNED_LONG: 307 case typelib_TypeClass_ENUM: 308 INSERT_INT32( pCppArgs[nPos], nGPR, pGPR, pStack ); 309 break; 310 case typelib_TypeClass_SHORT: 311 case typelib_TypeClass_CHAR: 312 case typelib_TypeClass_UNSIGNED_SHORT: 313 INSERT_INT16( pCppArgs[nPos], nGPR, pGPR, pStack ); 314 break; 315 case typelib_TypeClass_BOOLEAN: 316 case typelib_TypeClass_BYTE: 317 INSERT_INT8( pCppArgs[nPos], nGPR, pGPR, pStack ); 318 break; 319 case typelib_TypeClass_FLOAT: 320 case typelib_TypeClass_DOUBLE: 321 INSERT_FLOAT_DOUBLE( pCppArgs[nPos], nFPR, pFPR, pStack ); 322 break; 323 } 324 325 // no longer needed 326 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 327 } 328 else // ptr to complex value | ref 329 { 330 if (! rParam.bIn) // is pure out 331 { 332 // cpp out is constructed mem, uno out is not! 333 uno_constructData( 334 pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ), 335 pParamTypeDescr ); 336 pTempIndizes[nTempIndizes] = nPos; // default constructed for cpp call 337 // will be released at reconversion 338 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; 339 } 340 // is in/inout 341 else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr )) 342 { 343 uno_copyAndConvertData( 344 pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ), 345 pUnoArgs[nPos], pParamTypeDescr, pThis->getBridge()->getUno2Cpp() ); 346 347 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted 348 // will be released at reconversion 349 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; 350 } 351 else // direct way 352 { 353 pCppArgs[nPos] = pUnoArgs[nPos]; 354 // no longer needed 355 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 356 } 357 INSERT_INT64( &(pCppArgs[nPos]), nGPR, pGPR, pStack ); 358 } 359 } 360 361 try 362 { 363 callVirtualMethod( 364 pAdjustedThisPtr, aVtableSlot.index, 365 pCppReturn, pReturnTypeDescr, bSimpleReturn, 366 pStackStart, ( pStack - pStackStart ), 367 pGPR, nGPR, 368 pFPR, nFPR ); 369 // NO exception occured... 370 *ppUnoExc = 0; 371 372 // reconvert temporary params 373 for ( ; nTempIndizes--; ) 374 { 375 sal_Int32 nIndex = pTempIndizes[nTempIndizes]; 376 typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes]; 377 378 if (pParams[nIndex].bIn) 379 { 380 if (pParams[nIndex].bOut) // inout 381 { 382 uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value 383 uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, 384 pThis->getBridge()->getCpp2Uno() ); 385 } 386 } 387 else // pure out 388 { 389 uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, 390 pThis->getBridge()->getCpp2Uno() ); 391 } 392 // destroy temp cpp param => cpp: every param was constructed 393 uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); 394 395 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 396 } 397 // return value 398 if (pCppReturn && pUnoReturn != pCppReturn) 399 { 400 uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr, 401 pThis->getBridge()->getCpp2Uno() ); 402 uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release ); 403 } 404 } 405 catch (...) 406 { 407 // fill uno exception 408 fillUnoException( CPPU_CURRENT_NAMESPACE::__cxa_get_globals()->caughtExceptions, *ppUnoExc, pThis->getBridge()->getCpp2Uno() ); 409 410 // temporary params 411 for ( ; nTempIndizes--; ) 412 { 413 sal_Int32 nIndex = pTempIndizes[nTempIndizes]; 414 // destroy temp cpp param => cpp: every param was constructed 415 uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], cpp_release ); 416 TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] ); 417 } 418 // return type 419 if (pReturnTypeDescr) 420 TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); 421 } 422 } 423 424 //================================================================================================== 425 426 namespace bridges { namespace cpp_uno { namespace shared { 427 428 void unoInterfaceProxyDispatch( 429 uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr, 430 void * pReturn, void * pArgs[], uno_Any ** ppException ) 431 { 432 // is my surrogate 433 bridges::cpp_uno::shared::UnoInterfaceProxy * pThis 434 = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI); 435 typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr; 436 437 switch (pMemberDescr->eTypeClass) 438 { 439 case typelib_TypeClass_INTERFACE_ATTRIBUTE: 440 { 441 // determine vtable call index 442 sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition; 443 OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" ); 444 445 VtableSlot aVtableSlot( 446 getVtableSlot( 447 reinterpret_cast< 448 typelib_InterfaceAttributeTypeDescription const * >( 449 pMemberDescr))); 450 451 if (pReturn) 452 { 453 // dependent dispatch 454 cpp_call( 455 pThis, aVtableSlot, 456 ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef, 457 0, 0, // no params 458 pReturn, pArgs, ppException ); 459 } 460 else 461 { 462 // is SET 463 typelib_MethodParameter aParam; 464 aParam.pTypeRef = 465 ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef; 466 aParam.bIn = sal_True; 467 aParam.bOut = sal_False; 468 469 typelib_TypeDescriptionReference * pReturnTypeRef = 0; 470 OUString aVoidName( RTL_CONSTASCII_USTRINGPARAM("void") ); 471 typelib_typedescriptionreference_new( 472 &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData ); 473 474 // dependent dispatch 475 aVtableSlot.index += 1; // get, then set method 476 cpp_call( 477 pThis, aVtableSlot, // get, then set method 478 pReturnTypeRef, 479 1, &aParam, 480 pReturn, pArgs, ppException ); 481 482 typelib_typedescriptionreference_release( pReturnTypeRef ); 483 } 484 485 break; 486 } 487 case typelib_TypeClass_INTERFACE_METHOD: 488 { 489 // determine vtable call index 490 sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition; 491 OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" ); 492 493 VtableSlot aVtableSlot( 494 getVtableSlot( 495 reinterpret_cast< 496 typelib_InterfaceMethodTypeDescription const * >( 497 pMemberDescr))); 498 499 switch (aVtableSlot.index) 500 { 501 // standard calls 502 case 1: // acquire uno interface 503 (*pUnoI->acquire)( pUnoI ); 504 *ppException = 0; 505 break; 506 case 2: // release uno interface 507 (*pUnoI->release)( pUnoI ); 508 *ppException = 0; 509 break; 510 case 0: // queryInterface() opt 511 { 512 typelib_TypeDescription * pTD = 0; 513 TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() ); 514 if (pTD) 515 { 516 uno_Interface * pInterface = 0; 517 (*pThis->getBridge()->getUnoEnv()->getRegisteredInterface)( 518 pThis->getBridge()->getUnoEnv(), 519 (void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD ); 520 521 if (pInterface) 522 { 523 ::uno_any_construct( 524 reinterpret_cast< uno_Any * >( pReturn ), 525 &pInterface, pTD, 0 ); 526 (*pInterface->release)( pInterface ); 527 TYPELIB_DANGER_RELEASE( pTD ); 528 *ppException = 0; 529 break; 530 } 531 TYPELIB_DANGER_RELEASE( pTD ); 532 } 533 } // else perform queryInterface() 534 default: 535 // dependent dispatch 536 cpp_call( 537 pThis, aVtableSlot, 538 ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef, 539 ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams, 540 ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams, 541 pReturn, pArgs, ppException ); 542 } 543 break; 544 } 545 default: 546 { 547 ::com::sun::star::uno::RuntimeException aExc( 548 OUString( RTL_CONSTASCII_USTRINGPARAM("illegal member type description!") ), 549 ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() ); 550 551 Type const & rExcType = ::getCppuType( &aExc ); 552 // binary identical null reference 553 ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 ); 554 } 555 } 556 } 557 558 } } } 559