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-rw-r--r--src/liblzma/check/crc64_table.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/liblzma/check/crc64_table.c b/src/liblzma/check/crc64_table.c
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+++ b/src/liblzma/check/crc64_table.c
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+///////////////////////////////////////////////////////////////////////////////
+//
+/// \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. Use a typedef to avoid an empty translation unit.
+typedef void 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