diff options
| author | Kevin Cernekee <cernekee@gmail.com> | 2010-07-07 17:30:10 -0700 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2010-07-13 13:33:20 +0300 |
| commit | 8f627247f651e80834d7b0441328151be180b335 (patch) | |
| tree | 77f8abb7843291fb97b88f1e7355df3a9549608d /include/crc32.h | |
| parent | 004760f969175da7392dd02bb4fa14164ff46c1e (diff) | |
mtd-utils: move libmtd source files to lib/ subdirectory
Source files for libmtd, crc32, and fec are scattered throughout the
tree. Move them to a central location so they can be built into a
common "libmtd.a" library used by all mtd-utils programs.
This patch only renames/deletes files and does not change the content.
Also modify the build system and source code so that libmtd.a can be built
from a "common" location (lib/). Statically link all utilities at the top
level with libmtd.a . Minor changes to mkfs.ubifs to allow using the common
crc32 implementation.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'include/crc32.h')
| -rw-r--r-- | include/crc32.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/crc32.h b/include/crc32.h new file mode 100644 index 0000000..4b51177 --- /dev/null +++ b/include/crc32.h @@ -0,0 +1,22 @@ +/* + * This code was taken from the linux kernel. The license is GPL Version 2. + */ + +#ifndef __CRC32_H__ +#define __CRC32_H__ + +#include <stdint.h> + +extern const uint32_t crc32_table[256]; + +/* Return a 32-bit CRC of the contents of the buffer. */ +static inline uint32_t crc32(uint32_t val, const void *ss, int len) +{ + const unsigned char *s = ss; + + while (--len >= 0) + val = crc32_table[(val ^ *s++) & 0xff] ^ (val >> 8); + return val; +} + +#endif /* __CRC32_H__ */ |