Port FFS tools over from Building Block repository.

1 files changed, 43 insertions, 0 deletions

diff --git a/clib/checksum.h b/clib/checksum.h
new file mode 100644
index 0000000..528b77e
--- /dev/null
+++ b/clib/checksum.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2014
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*! @file checksum.h
+ *  @brief Simple XOR checksum
+ *  @author Mike Kobler <mkobler@us.ibm.com>
+ *  @date 2007-2012
+ */
+
+#ifndef __CHECKSUM_H__
+#define __CHECKSUM_H__
+
+#include <stdint.h>
+
+/*!
+ * @brief Copy bytes from the source reference to the destination reference
+ *        while computing a 32-bit checksum
+ * @param __dst [in] Destination reference
+ * @param __src [in] Source reference (must be 4 byte aligned)
+ * @param __n [in] Number of bytes to copy / compute
+ * @return 32-bit Checksum value
+ */
+extern uint32_t memcpy_checksum(void *__restrict __dst,
+				const void *__restrict __src, size_t __n)
+/*! @cond */
+__THROW __nonnull((2)) /*! @endcond */ ;
+
+#endif				/* __CHECKSUM_H__ */