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authorKevin Cernekee <cernekee@gmail.com>2010-07-07 17:30:10 -0700
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2010-07-13 13:33:20 +0300
commit8f627247f651e80834d7b0441328151be180b335 (patch)
tree77f8abb7843291fb97b88f1e7355df3a9549608d /include/crc32.h
parent004760f969175da7392dd02bb4fa14164ff46c1e (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.h22
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__ */