Changeset 5d494b3 in mainline for kernel/generic/include/byteorder.h

Timestamp:

2008-04-03T20:05:06Z (16 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

776f2e6

Parents:

dfa7bac

Message:

Each architecture should only announce its endianity.
The conversion macros should be defined only once.

File:

• kernel/generic/include/byteorder.h (modified) (1 diff)

kernel/generic/include/byteorder.h

@@ -36 +36 @@
 #define KERN_BYTEORDER_H_
 
+#include <arch/byteorder.h>
+
+#if !(defined(ARCH_IS_BIG_ENDIAN) ^ defined(ARCH_IS_LITTLE_ENDIAN))
+#error The architecture must be either big-endian or little-endian.
+#endif
+
+#ifdef ARCH_IS_BIG_ENDIAN
+
+#define uint16_t_le2host(n)             uint16_t_byteorder_swap(n)
+#define uint32_t_le2host(n)             uint32_t_byteorder_swap(n)
+#define uint64_t_le2host(n)             uint64_t_byteorder_swap(n)
+
+#define uint16_t_be2host(n)             (n)
+#define uint32_t_be2host(n)             (n)
+#define uint64_t_be2host(n)             (n)
+
+#else
+
+#define uint16_t_le2host(n)             (n)
+#define uint32_t_le2host(n)             (n)
+#define uint64_t_le2host(n)             (n)
+
+#define uint16_t_be2host(n)             uint16_t_byteorder_swap(n)
+#define uint32_t_be2host(n)             uint32_t_byteorder_swap(n)
+#define uint64_t_be2host(n)             uint64_t_byteorder_swap(n)
+
+#endif
+
 static inline uint64_t uint64_t_byteorder_swap(uint64_t n)
 {