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 <stdio.h> 28 #include <stdlib.h> 29 #include <hash_map> 30 31 #include <rtl/alloc.h> 32 #include <osl/mutex.hxx> 33 34 #include <com/sun/star/uno/genfunc.hxx> 35 #include "com/sun/star/uno/RuntimeException.hpp" 36 #include <uno/data.h> 37 #include <typelib/typedescription.hxx> 38 39 #include "bridges/cpp_uno/shared/bridge.hxx" 40 #include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx" 41 #include "bridges/cpp_uno/shared/types.hxx" 42 #include "bridges/cpp_uno/shared/vtablefactory.hxx" 43 44 #include "abi.hxx" 45 #include "share.hxx" 46 47 using namespace ::osl; 48 using namespace ::rtl; 49 using namespace ::com::sun::star::uno; 50 51 //================================================================================================== 52 53 // Perform the UNO call 54 // 55 // We must convert the paramaters stored in gpreg, fpreg and ovrflw to UNO 56 // arguments and call pThis->getUnoI()->pDispatcher. 57 // 58 // gpreg: [ret *], this, [gpr params] 59 // fpreg: [fpr params] 60 // ovrflw: [gpr or fpr params (properly aligned)] 61 // 62 // [ret *] is present when we are returning a structure bigger than 16 bytes 63 // Simple types are returned in rax, rdx (int), or xmm0, xmm1 (fp). 64 // Similarly structures <= 16 bytes are in rax, rdx, xmm0, xmm1 as necessary. 65 static typelib_TypeClass cpp2uno_call( 66 bridges::cpp_uno::shared::CppInterfaceProxy * pThis, 67 const typelib_TypeDescription * pMemberTypeDescr, 68 typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return 69 sal_Int32 nParams, typelib_MethodParameter * pParams, 70 void ** gpreg, void ** fpreg, void ** ovrflw, 71 sal_uInt64 * pRegisterReturn /* space for register return */ ) 72 { 73 unsigned int nr_gpr = 0; //number of gpr registers used 74 unsigned int nr_fpr = 0; //number of fpr registers used 75 76 // return 77 typelib_TypeDescription * pReturnTypeDescr = 0; 78 if (pReturnTypeRef) 79 TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); 80 81 void * pUnoReturn = 0; 82 void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need 83 84 if ( pReturnTypeDescr ) 85 { 86 if ( x86_64::return_in_hidden_param( pReturnTypeRef ) ) 87 { 88 pCppReturn = *gpreg++; 89 nr_gpr++; 90 91 pUnoReturn = ( bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) 92 ? alloca( pReturnTypeDescr->nSize ) 93 : pCppReturn ); // direct way 94 } 95 else 96 pUnoReturn = pRegisterReturn; // direct way for simple types 97 } 98 99 // pop this 100 gpreg++; 101 nr_gpr++; 102 103 // stack space 104 // parameters 105 void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams ); 106 void ** pCppArgs = pUnoArgs + nParams; 107 // indizes of values this have to be converted (interface conversion cpp<=>uno) 108 sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams)); 109 // type descriptions for reconversions 110 typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams)); 111 112 sal_Int32 nTempIndizes = 0; 113 114 for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) 115 { 116 const typelib_MethodParameter & rParam = pParams[nPos]; 117 118 int nUsedGPR = 0; 119 int nUsedSSE = 0; 120 bool bFitsRegisters = x86_64::examine_argument( rParam.pTypeRef, false, nUsedGPR, nUsedSSE ); 121 if ( !rParam.bOut && bridges::cpp_uno::shared::isSimpleType( rParam.pTypeRef ) ) // value 122 { 123 // Simple types must fit exactly one register on x86_64 124 OSL_ASSERT( bFitsRegisters && ( ( nUsedSSE == 1 && nUsedGPR == 0 ) || ( nUsedSSE == 0 && nUsedGPR == 1 ) ) ); 125 126 if ( nUsedSSE == 1 ) 127 { 128 if ( nr_fpr < x86_64::MAX_SSE_REGS ) 129 { 130 pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++; 131 nr_fpr++; 132 } 133 else 134 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++; 135 } 136 else if ( nUsedGPR == 1 ) 137 { 138 if ( nr_gpr < x86_64::MAX_GPR_REGS ) 139 { 140 pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++; 141 nr_gpr++; 142 } 143 else 144 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++; 145 } 146 } 147 else // struct <= 16 bytes || ptr to complex value || ref 148 { 149 typelib_TypeDescription * pParamTypeDescr = 0; 150 TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); 151 152 void *pCppStack; 153 if ( nr_gpr < x86_64::MAX_GPR_REGS ) 154 { 155 pCppArgs[nPos] = pCppStack = *gpreg++; 156 nr_gpr++; 157 } 158 else 159 pCppArgs[nPos] = pCppStack = *ovrflw++; 160 161 if (! rParam.bIn) // is pure out 162 { 163 // uno out is unconstructed mem! 164 pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ); 165 pTempIndizes[nTempIndizes] = nPos; 166 // will be released at reconversion 167 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; 168 } 169 else if ( bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ) ) // is in/inout 170 { 171 uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ), 172 pCppStack, pParamTypeDescr, 173 pThis->getBridge()->getCpp2Uno() ); 174 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted 175 // will be released at reconversion 176 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr; 177 } 178 else // direct way 179 { 180 pUnoArgs[nPos] = pCppStack; 181 // no longer needed 182 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 183 } 184 } 185 } 186 187 // ExceptionHolder 188 uno_Any aUnoExc; // Any will be constructed by callee 189 uno_Any * pUnoExc = &aUnoExc; 190 191 // invoke uno dispatch call 192 (*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc ); 193 194 // in case an exception occurred... 195 if ( pUnoExc ) 196 { 197 // destruct temporary in/inout params 198 for ( ; nTempIndizes--; ) 199 { 200 sal_Int32 nIndex = pTempIndizes[nTempIndizes]; 201 202 if (pParams[nIndex].bIn) // is in/inout => was constructed 203 uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 ); 204 TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] ); 205 } 206 if (pReturnTypeDescr) 207 TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); 208 209 CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() ); // has to destruct the any 210 // is here for dummy 211 return typelib_TypeClass_VOID; 212 } 213 else // else no exception occurred... 214 { 215 // temporary params 216 for ( ; nTempIndizes--; ) 217 { 218 sal_Int32 nIndex = pTempIndizes[nTempIndizes]; 219 typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes]; 220 221 if ( pParams[nIndex].bOut ) // inout/out 222 { 223 // convert and assign 224 uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); 225 uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr, 226 pThis->getBridge()->getUno2Cpp() ); 227 } 228 // destroy temp uno param 229 uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); 230 231 TYPELIB_DANGER_RELEASE( pParamTypeDescr ); 232 } 233 // return 234 if ( pCppReturn ) // has complex return 235 { 236 if ( pUnoReturn != pCppReturn ) // needs reconversion 237 { 238 uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr, 239 pThis->getBridge()->getUno2Cpp() ); 240 // destroy temp uno return 241 uno_destructData( pUnoReturn, pReturnTypeDescr, 0 ); 242 } 243 // complex return ptr is set to return reg 244 *(void **)pRegisterReturn = pCppReturn; 245 } 246 if ( pReturnTypeDescr ) 247 { 248 typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass; 249 TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); 250 return eRet; 251 } 252 else 253 return typelib_TypeClass_VOID; 254 } 255 } 256 257 258 //================================================================================================== 259 extern "C" typelib_TypeClass cpp_vtable_call( 260 sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, 261 void ** gpreg, void ** fpreg, void ** ovrflw, 262 sal_uInt64 * pRegisterReturn /* space for register return */ ) 263 { 264 // gpreg: [ret *], this, [other gpr params] 265 // fpreg: [fpr params] 266 // ovrflw: [gpr or fpr params (properly aligned)] 267 void * pThis; 268 if ( nFunctionIndex & 0x80000000 ) 269 { 270 nFunctionIndex &= 0x7fffffff; 271 pThis = gpreg[1]; 272 } 273 else 274 { 275 pThis = gpreg[0]; 276 } 277 pThis = static_cast<char *>( pThis ) - nVtableOffset; 278 279 bridges::cpp_uno::shared::CppInterfaceProxy * pCppI = 280 bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy( pThis ); 281 282 typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr(); 283 284 OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!\n" ); 285 if ( nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex ) 286 { 287 throw RuntimeException( OUString::createFromAscii("illegal vtable index!"), 288 reinterpret_cast<XInterface *>( pCppI ) ); 289 } 290 291 // determine called method 292 sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex]; 293 OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!\n" ); 294 295 TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); 296 297 typelib_TypeClass eRet; 298 switch ( aMemberDescr.get()->eTypeClass ) 299 { 300 case typelib_TypeClass_INTERFACE_ATTRIBUTE: 301 { 302 typelib_TypeDescriptionReference *pAttrTypeRef = 303 reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( aMemberDescr.get() )->pAttributeTypeRef; 304 305 if ( pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex ) 306 { 307 // is GET method 308 eRet = cpp2uno_call( pCppI, aMemberDescr.get(), pAttrTypeRef, 309 0, 0, // no params 310 gpreg, fpreg, ovrflw, pRegisterReturn ); 311 } 312 else 313 { 314 // is SET method 315 typelib_MethodParameter aParam; 316 aParam.pTypeRef = pAttrTypeRef; 317 aParam.bIn = sal_True; 318 aParam.bOut = sal_False; 319 320 eRet = cpp2uno_call( pCppI, aMemberDescr.get(), 321 0, // indicates void return 322 1, &aParam, 323 gpreg, fpreg, ovrflw, pRegisterReturn ); 324 } 325 break; 326 } 327 case typelib_TypeClass_INTERFACE_METHOD: 328 { 329 // is METHOD 330 switch ( nFunctionIndex ) 331 { 332 case 1: // acquire() 333 pCppI->acquireProxy(); // non virtual call! 334 eRet = typelib_TypeClass_VOID; 335 break; 336 case 2: // release() 337 pCppI->releaseProxy(); // non virtual call! 338 eRet = typelib_TypeClass_VOID; 339 break; 340 case 0: // queryInterface() opt 341 { 342 typelib_TypeDescription * pTD = 0; 343 TYPELIB_DANGER_GET( &pTD, reinterpret_cast<Type *>( gpreg[2] )->getTypeLibType() ); 344 if ( pTD ) 345 { 346 XInterface * pInterface = 0; 347 (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface) 348 ( pCppI->getBridge()->getCppEnv(), 349 (void **)&pInterface, 350 pCppI->getOid().pData, 351 reinterpret_cast<typelib_InterfaceTypeDescription *>( pTD ) ); 352 353 if ( pInterface ) 354 { 355 ::uno_any_construct( reinterpret_cast<uno_Any *>( gpreg[0] ), 356 &pInterface, pTD, cpp_acquire ); 357 358 pInterface->release(); 359 TYPELIB_DANGER_RELEASE( pTD ); 360 361 reinterpret_cast<void **>( pRegisterReturn )[0] = gpreg[0]; 362 eRet = typelib_TypeClass_ANY; 363 break; 364 } 365 TYPELIB_DANGER_RELEASE( pTD ); 366 } 367 } // else perform queryInterface() 368 default: 369 { 370 typelib_InterfaceMethodTypeDescription *pMethodTD = 371 reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( aMemberDescr.get() ); 372 373 eRet = cpp2uno_call( pCppI, aMemberDescr.get(), 374 pMethodTD->pReturnTypeRef, 375 pMethodTD->nParams, 376 pMethodTD->pParams, 377 gpreg, fpreg, ovrflw, pRegisterReturn ); 378 } 379 } 380 break; 381 } 382 default: 383 { 384 throw RuntimeException( OUString::createFromAscii("no member description found!"), 385 reinterpret_cast<XInterface *>( pCppI ) ); 386 // is here for dummy 387 eRet = typelib_TypeClass_VOID; 388 } 389 } 390 391 return eRet; 392 } 393 394 //================================================================================================== 395 extern "C" void privateSnippetExecutor( void ) 396 { 397 asm volatile ( 398 "\t" 399 "subq $160, %%rsp\n\t" 400 "movq %%r10, -152(%%rbp)\n\t" // Save (nVtableOffset << 32) + nFunctionIndex 401 402 "movq %%rdi, -112(%%rbp)\n\t" // Save GP registers 403 "movq %%rsi, -104(%%rbp)\n\t" 404 "movq %%rdx, -96(%%rbp)\n\t" 405 "movq %%rcx, -88(%%rbp)\n\t" 406 "movq %%r8 , -80(%%rbp)\n\t" 407 "movq %%r9 , -72(%%rbp)\n\t" 408 409 "movsd %%xmm0, -64(%%rbp)\n\t" // Save FP registers 410 "movsd %%xmm1, -56(%%rbp)\n\t" 411 "movsd %%xmm2, -48(%%rbp)\n\t" 412 "movsd %%xmm3, -40(%%rbp)\n\t" 413 "movsd %%xmm4, -32(%%rbp)\n\t" 414 "movsd %%xmm5, -24(%%rbp)\n\t" 415 "movsd %%xmm6, -16(%%rbp)\n\t" 416 "movsd %%xmm7, -8(%%rbp)\n\t" 417 418 "leaq -144(%%rbp), %%r9\n\t" // 6th param: sal_uInt64* pRegisterReturn 419 "leaq 16(%%rbp), %%r8\n\t" // 5rd param: void** ovrflw 420 "leaq -64(%%rbp), %%rcx\n\t" // 4th param: void** fpreg 421 "leaq -112(%%rbp), %%rdx\n\t" // 3rd param: void** gpreg 422 "movl -148(%%rbp), %%esi\n\t" // 2nd param: sal_int32 nVtableOffset 423 "movl -152(%%rbp), %%edi\n\t" // 1st param: sal_int32 nFunctionIndex 424 425 "call _cpp_vtable_call\n\t" 426 427 "cmp $10, %%rax\n\t" // typelib_TypeClass_FLOAT 428 "je .Lfloat\n\t" 429 "cmp $11, %%rax\n\t" // typelib_TypeClass_DOUBLE 430 "je .Lfloat\n\t" 431 432 "movq -144(%%rbp), %%rax\n\t" // Return value (int case) 433 "movq -136(%%rbp), %%rdx\n\t" // Return value (int case) 434 "movq -144(%%rbp), %%xmm0\n\t" // Return value (int case) 435 "movq -136(%%rbp), %%xmm1\n\t" // Return value (int case) 436 "jmp .Lfinish\n" 437 ".Lfloat:\n\t" 438 "movlpd -144(%%rbp), %%xmm0\n" // Return value (float/double case) 439 ".Lfinish:\n\t" 440 "addq $160, %%rsp\n" 441 : 442 : 443 : "rax", "r10", "xmm0" ); 444 } 445 const int codeSnippetSize = 24; 446 447 // Generate a trampoline that redirects method calls to 448 // privateSnippetExecutor(). 449 // 450 // privateSnippetExecutor() saves all the registers that are used for 451 // parameter passing on x86_64, and calls the cpp_vtable_call(). 452 // When it returns, privateSnippetExecutor() sets the return value. 453 // 454 // Note: The code snippet we build here must not create a stack frame, 455 // otherwise the UNO exceptions stop working thanks to non-existing 456 // unwinding info. 457 unsigned char * codeSnippet( unsigned char * code, 458 sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, 459 bool bHasHiddenParam ) SAL_THROW( () ) 460 { 461 sal_uInt64 nOffsetAndIndex = ( ( (sal_uInt64) nVtableOffset ) << 32 ) | ( (sal_uInt64) nFunctionIndex ); 462 463 if ( bHasHiddenParam ) 464 nOffsetAndIndex |= 0x80000000; 465 466 // movq $<nOffsetAndIndex>, %r10 467 *reinterpret_cast<sal_uInt16 *>( code ) = 0xba49; 468 *reinterpret_cast<sal_uInt16 *>( code + 2 ) = nOffsetAndIndex & 0xFFFF; 469 *reinterpret_cast<sal_uInt32 *>( code + 4 ) = nOffsetAndIndex >> 16; 470 *reinterpret_cast<sal_uInt16 *>( code + 8 ) = nOffsetAndIndex >> 48; 471 472 // movq $<address of the privateSnippetExecutor>, %r11 473 *reinterpret_cast<sal_uInt16 *>( code + 10 ) = 0xbb49; 474 *reinterpret_cast<sal_uInt32 *>( code + 12 ) = reinterpret_cast<sal_uInt64>(privateSnippetExecutor); 475 *reinterpret_cast<sal_uInt32 *>( code + 16 ) = reinterpret_cast<sal_uInt64>(privateSnippetExecutor) >> 32; 476 477 // jmpq *%r11 478 *reinterpret_cast<sal_uInt32 *>( code + 20 ) = 0x00e3ff49; 479 480 return code + codeSnippetSize; 481 } 482 483 //================================================================================================== 484 struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; }; 485 486 bridges::cpp_uno::shared::VtableFactory::Slot * 487 bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block) 488 { 489 return static_cast< Slot * >(block) + 2; 490 } 491 492 //================================================================================================== 493 sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize( 494 sal_Int32 slotCount) 495 { 496 return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize; 497 } 498 499 //================================================================================================== 500 bridges::cpp_uno::shared::VtableFactory::Slot * 501 bridges::cpp_uno::shared::VtableFactory::initializeBlock( 502 void * block, sal_Int32 slotCount) 503 { 504 Slot * slots = mapBlockToVtable(block); 505 slots[-2].fn = 0; 506 slots[-1].fn = 0; 507 return slots + slotCount; 508 } 509 510 //================================================================================================== 511 512 unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions( 513 Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff, 514 typelib_InterfaceTypeDescription const * type, sal_Int32 nFunctionOffset, 515 sal_Int32 functionCount, sal_Int32 nVtableOffset ) 516 { 517 (*slots) -= functionCount; 518 Slot * s = *slots; 519 for ( sal_Int32 nPos = 0; nPos < type->nMembers; ++nPos ) 520 { 521 typelib_TypeDescription * pTD = 0; 522 523 TYPELIB_DANGER_GET( &pTD, type->ppMembers[ nPos ] ); 524 OSL_ASSERT( pTD ); 525 526 if ( typelib_TypeClass_INTERFACE_ATTRIBUTE == pTD->eTypeClass ) 527 { 528 typelib_InterfaceAttributeTypeDescription *pAttrTD = 529 reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( pTD ); 530 531 // get method 532 (s++)->fn = code + writetoexecdiff; 533 code = codeSnippet( code, nFunctionOffset++, nVtableOffset, 534 x86_64::return_in_hidden_param( pAttrTD->pAttributeTypeRef ) ); 535 536 if ( ! pAttrTD->bReadOnly ) 537 { 538 // set method 539 (s++)->fn = code + writetoexecdiff; 540 code = codeSnippet( code, nFunctionOffset++, nVtableOffset, false ); 541 } 542 } 543 else if ( typelib_TypeClass_INTERFACE_METHOD == pTD->eTypeClass ) 544 { 545 typelib_InterfaceMethodTypeDescription *pMethodTD = 546 reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( pTD ); 547 548 (s++)->fn = code + writetoexecdiff; 549 code = codeSnippet( code, nFunctionOffset++, nVtableOffset, 550 x86_64::return_in_hidden_param( pMethodTD->pReturnTypeRef ) ); 551 } 552 else 553 OSL_ASSERT( false ); 554 555 TYPELIB_DANGER_RELEASE( pTD ); 556 } 557 return code; 558 } 559 560 //================================================================================================== 561 void bridges::cpp_uno::shared::VtableFactory::flushCode( 562 unsigned char const *, unsigned char const * ) 563 { 564 } 565