Adding upstream version 5.6.1+really5.4.5.upstream/5.6.1+really5.4.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 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..688e527
--- /dev/null
+++ b/src/liblzma/check/crc64_table.c
@@ -0,0 +1,33 @@
+///////////////////////////////////////////////////////////////////////////////
+//
+/// \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