tools/include: Add byteshift headers for endian access (a07f7672) · Commits · 戴 / test

tools/include/tools/be_byteshift.h

0 → 100644

+70 −0

Original line number	Diff line number	Diff line
		#ifndef _TOOLS_BE_BYTESHIFT_H
		#define _TOOLS_BE_BYTESHIFT_H

		#include <linux/types.h>

		static inline __u16 __get_unaligned_be16(const __u8 *p)
		{
		return p[0] << 8 \| p[1];
		}

		static inline __u32 __get_unaligned_be32(const __u8 *p)
		{
		return p[0] << 24 \| p[1] << 16 \| p[2] << 8 \| p[3];
		}

		static inline __u64 __get_unaligned_be64(const __u8 *p)
		{
		return (__u64)__get_unaligned_be32(p) << 32 \|
		__get_unaligned_be32(p + 4);
		}

		static inline void __put_unaligned_be16(__u16 val, __u8 *p)
		{
		*p++ = val >> 8;
		*p++ = val;
		}

		static inline void __put_unaligned_be32(__u32 val, __u8 *p)
		{
		__put_unaligned_be16(val >> 16, p);
		__put_unaligned_be16(val, p + 2);
		}

		static inline void __put_unaligned_be64(__u64 val, __u8 *p)
		{
		__put_unaligned_be32(val >> 32, p);
		__put_unaligned_be32(val, p + 4);
		}

		static inline __u16 get_unaligned_be16(const void *p)
		{
		return __get_unaligned_be16((const __u8 *)p);
		}

		static inline __u32 get_unaligned_be32(const void *p)
		{
		return __get_unaligned_be32((const __u8 *)p);
		}

		static inline __u64 get_unaligned_be64(const void *p)
		{
		return __get_unaligned_be64((const __u8 *)p);
		}

		static inline void put_unaligned_be16(__u16 val, void *p)
		{
		__put_unaligned_be16(val, p);
		}

		static inline void put_unaligned_be32(__u32 val, void *p)
		{
		__put_unaligned_be32(val, p);
		}

		static inline void put_unaligned_be64(__u64 val, void *p)
		{
		__put_unaligned_be64(val, p);
		}

		#endif /* _TOOLS_BE_BYTESHIFT_H */

0 → 100644

+70 −0

Original line number	Diff line number	Diff line
		#ifndef _TOOLS_LE_BYTESHIFT_H
		#define _TOOLS_LE_BYTESHIFT_H

		#include <linux/types.h>

		static inline __u16 __get_unaligned_le16(const __u8 *p)
		{
		return p[0] \| p[1] << 8;
		}

		static inline __u32 __get_unaligned_le32(const __u8 *p)
		{
		return p[0] \| p[1] << 8 \| p[2] << 16 \| p[3] << 24;
		}

		static inline __u64 __get_unaligned_le64(const __u8 *p)
		{
		return (__u64)__get_unaligned_le32(p + 4) << 32 \|
		__get_unaligned_le32(p);
		}

		static inline void __put_unaligned_le16(__u16 val, __u8 *p)
		{
		*p++ = val;
		*p++ = val >> 8;
		}

		static inline void __put_unaligned_le32(__u32 val, __u8 *p)
		{
		__put_unaligned_le16(val >> 16, p + 2);
		__put_unaligned_le16(val, p);
		}

		static inline void __put_unaligned_le64(__u64 val, __u8 *p)
		{
		__put_unaligned_le32(val >> 32, p + 4);
		__put_unaligned_le32(val, p);
		}

		static inline __u16 get_unaligned_le16(const void *p)
		{
		return __get_unaligned_le16((const __u8 *)p);
		}

		static inline __u32 get_unaligned_le32(const void *p)
		{
		return __get_unaligned_le32((const __u8 *)p);
		}

		static inline __u64 get_unaligned_le64(const void *p)
		{
		return __get_unaligned_le64((const __u8 *)p);
		}

		static inline void put_unaligned_le16(__u16 val, void *p)
		{
		__put_unaligned_le16(val, p);
		}

		static inline void put_unaligned_le32(__u32 val, void *p)
		{
		__put_unaligned_le32(val, p);
		}

		static inline void put_unaligned_le64(__u64 val, void *p)
		{
		__put_unaligned_le64(val, p);
		}

		#endif /* _TOOLS_LE_BYTESHIFT_H */