diff options
Diffstat (limited to 'src/liblzma/check/crc32_tablegen.c')
-rw-r--r-- | src/liblzma/check/crc32_tablegen.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/liblzma/check/crc32_tablegen.c b/src/liblzma/check/crc32_tablegen.c new file mode 100644 index 00000000..280d3b12 --- /dev/null +++ b/src/liblzma/check/crc32_tablegen.c @@ -0,0 +1,55 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \file crc32_tablegen.c +/// \brief Generates CRC32 crc32_table.c +/// +/// Compiling: gcc -std=c99 -o crc32_tablegen crc32_tablegen.c crc32_init.c +/// Add -DWORDS_BIGENDIAN to generate big endian table. +// +// This code has been put into the public domain. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +// +/////////////////////////////////////////////////////////////////////////////// + +#include <sys/types.h> +#include <inttypes.h> +#include <stdio.h> + + +extern void lzma_crc32_init(void); + +extern uint32_t lzma_crc32_table[8][256]; + + +int +main() +{ + lzma_crc32_init(); + + printf("/* This file has been automatically generated by " + "crc32_tablegen.c. */\n\n" + "#include <inttypes.h>\n\n" + "const uint32_t lzma_crc32_table[8][256] = {\n\t{"); + + for (size_t s = 0; s < 8; ++s) { + for (size_t b = 0; b < 256; ++b) { + if ((b % 4) == 0) + printf("\n\t\t"); + + printf("0x%08" PRIX32, lzma_crc32_table[s][b]); + + if (b != 255) + printf(", "); + } + + if (s == 7) + printf("\n\t}\n};\n"); + else + printf("\n\t}, {"); + } + + return 0; +} |