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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 21:12:04 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 21:12:04 +0000 |
| commit | eac54b7c4aec25060d7bd856f7cdc290943d6aae (patch) | |
| tree | 9a6d81c9f88df4698e746d63d14ddafeddd918b8 /src/liblzma/check/crc64_table.c | |
| parent | Initial commit. (diff) | |
| download | xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.tar.xz xz-utils-eac54b7c4aec25060d7bd856f7cdc290943d6aae.zip | |
Adding upstream version 5.4.1.upstream/5.4.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/liblzma/check/crc64_table.c')
| -rw-r--r-- | src/liblzma/check/crc64_table.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/liblzma/check/crc64_table.c b/src/liblzma/check/crc64_table.c new file mode 100644 index 0000000..241adcd --- /dev/null +++ b/src/liblzma/check/crc64_table.c @@ -0,0 +1,35 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \file crc64_table.c +/// \brief Precalculated CRC64 table with correct endianness +// +// Author: Lasse Collin +// +// This file has been put into the public domain. +// You can do whatever you want with this file. +// +/////////////////////////////////////////////////////////////////////////////// + +#include "common.h" + + +// FIXME: Compared to crc64_fast.c this has to check for __x86_64__ too +// so that in 32-bit builds crc64_x86.S won't break due to a missing table. +#if (defined(__x86_64__) && defined(__SSSE3__) \ + && defined(__SSE4_1__) && defined(__PCLMUL__)) \ + || (defined(__e2k__) && __iset__ >= 6) +// No table needed but something has to be exported to keep some toolchains +// happy. Also use a declaration to silence compiler warnings. +extern const char lzma_crc64_dummy; +const char lzma_crc64_dummy; + +#else +// Having the declaration here silences clang -Wmissing-variable-declarations. +extern const uint64_t lzma_crc64_table[4][256]; + +# if defined(WORDS_BIGENDIAN) +# include "crc64_table_be.h" +# else +# include "crc64_table_le.h" +# endif +#endif |