1// SPDX-License-Identifier: 0BSD 2 3/////////////////////////////////////////////////////////////////////////////// 4// 5/// \file crc64_table.c 6/// \brief Precalculated CRC64 table with correct endianness 7// 8// Author: Lasse Collin 9// 10/////////////////////////////////////////////////////////////////////////////// 11 12#include "common.h" 13 14 15// FIXME: Compared to crc_common.h this has to check for __x86_64__ too 16// so that in 32-bit builds crc64_x86.S won't break due to a missing table. 17#if defined(HAVE_USABLE_CLMUL) && ((defined(__x86_64__) && defined(__SSSE3__) \ 18 && defined(__SSE4_1__) && defined(__PCLMUL__)) \ 19 || (defined(__e2k__) && __iset__ >= 6)) 20# define NO_CRC64_TABLE 21#endif 22 23 24#ifdef NO_CRC64_TABLE 25// No table needed. Use a typedef to avoid an empty translation unit. 26typedef void lzma_crc64_dummy; 27 28#else 29// Having the declaration here silences clang -Wmissing-variable-declarations. 30extern const uint64_t lzma_crc64_table[4][256]; 31 32# if defined(WORDS_BIGENDIAN) 33# include "crc64_table_be.h" 34# else 35# include "crc64_table_le.h" 36# endif 37#endif 38