tools/include/linux/little_endian.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _LINUX_BYTEORDER_LITTLE_ENDIAN_H
   3 #define _LINUX_BYTEORDER_LITTLE_ENDIAN_H
   4
   5 #ifndef __LITTLE_ENDIAN
   6 #define __LITTLE_ENDIAN 1234
   7 #endif
   8 #ifndef __LITTLE_ENDIAN_BITFIELD
   9 #define __LITTLE_ENDIAN_BITFIELD
  10 #endif
  11
  12 #include <linux/stddef.h>
  13 #include <linux/types.h>
  14 #include <linux/swab.h>
  15
  16 #define __constant_htonl(x) ((__be32)___constant_swab32((x)))
  17 #define __constant_ntohl(x) ___constant_swab32((__be32)(x))
  18 #define __constant_htons(x) ((__be16)___constant_swab16((x)))
  19 #define __constant_ntohs(x) ___constant_swab16((__be16)(x))
  20 #define __constant_cpu_to_le64(x) ((__le64)(__u64)(x))
  21 #define __constant_le64_to_cpu(x) ((__u64)(__le64)(x))
  22 #define __constant_cpu_to_le32(x) ((__le32)(__u32)(x))
  23 #define __constant_le32_to_cpu(x) ((__u32)(__le32)(x))
  24 #define __constant_cpu_to_le16(x) ((__le16)(__u16)(x))
  25 #define __constant_le16_to_cpu(x) ((__u16)(__le16)(x))
  26 #define __constant_cpu_to_be64(x) ((__be64)___constant_swab64((x)))
  27 #define __constant_be64_to_cpu(x) ___constant_swab64((__u64)(__be64)(x))
  28 #define __constant_cpu_to_be32(x) ((__be32)___constant_swab32((x)))
  29 #define __constant_be32_to_cpu(x) ___constant_swab32((__u32)(__be32)(x))
  30 #define __constant_cpu_to_be16(x) ((__be16)___constant_swab16((x)))
  31 #define __constant_be16_to_cpu(x) ___constant_swab16((__u16)(__be16)(x))
  32 #define __cpu_to_le64(x) ((__le64)(__u64)(x))
  33 #define __le64_to_cpu(x) ((__u64)(__le64)(x))
  34 #define __cpu_to_le32(x) ((__le32)(__u32)(x))
  35 #define __le32_to_cpu(x) ((__u32)(__le32)(x))
  36 #define __cpu_to_le16(x) ((__le16)(__u16)(x))
  37 #define __le16_to_cpu(x) ((__u16)(__le16)(x))
  38 #define __cpu_to_be64(x) ((__be64)__swab64((x)))
  39 #define __be64_to_cpu(x) __swab64((__u64)(__be64)(x))
  40 #define __cpu_to_be32(x) ((__be32)__swab32((x)))
  41 #define __be32_to_cpu(x) __swab32((__u32)(__be32)(x))
  42 #define __cpu_to_be16(x) ((__be16)__swab16((x)))
  43 #define __be16_to_cpu(x) __swab16((__u16)(__be16)(x))
  44
  45 static __always_inline __le64 __cpu_to_le64p(const __u64 *p)
  46 {
  47         return (__le64)*p;
  48 }
  49 static __always_inline __u64 __le64_to_cpup(const __le64 *p)
  50 {
  51         return (__u64)*p;
  52 }
  53 static __always_inline __le32 __cpu_to_le32p(const __u32 *p)
  54 {
  55         return (__le32)*p;
  56 }
  57 static __always_inline __u32 __le32_to_cpup(const __le32 *p)
  58 {
  59         return (__u32)*p;
  60 }
  61 static __always_inline __le16 __cpu_to_le16p(const __u16 *p)
  62 {
  63         return (__le16)*p;
  64 }
  65 static __always_inline __u16 __le16_to_cpup(const __le16 *p)
  66 {
  67         return (__u16)*p;
  68 }
  69 static __always_inline __be64 __cpu_to_be64p(const __u64 *p)
  70 {
  71         return (__be64)__swab64p(p);
  72 }
  73 static __always_inline __u64 __be64_to_cpup(const __be64 *p)
  74 {
  75         return __swab64p((__u64 *)p);
  76 }
  77 static __always_inline __be32 __cpu_to_be32p(const __u32 *p)
  78 {
  79         return (__be32)__swab32p(p);
  80 }
  81 static __always_inline __u32 __be32_to_cpup(const __be32 *p)
  82 {
  83         return __swab32p((__u32 *)p);
  84 }
  85 static __always_inline __be16 __cpu_to_be16p(const __u16 *p)
  86 {
  87         return (__be16)__swab16p(p);
  88 }
  89 static __always_inline __u16 __be16_to_cpup(const __be16 *p)
  90 {
  91         return __swab16p((__u16 *)p);
  92 }
  93 #define __cpu_to_le64s(x) do { (void)(x); } while (0)
  94 #define __le64_to_cpus(x) do { (void)(x); } while (0)
  95 #define __cpu_to_le32s(x) do { (void)(x); } while (0)
  96 #define __le32_to_cpus(x) do { (void)(x); } while (0)
  97 #define __cpu_to_le16s(x) do { (void)(x); } while (0)
  98 #define __le16_to_cpus(x) do { (void)(x); } while (0)
  99 #define __cpu_to_be64s(x) __swab64s((x))
 100 #define __be64_to_cpus(x) __swab64s((x))
 101 #define __cpu_to_be32s(x) __swab32s((x))
 102 #define __be32_to_cpus(x) __swab32s((x))
 103 #define __cpu_to_be16s(x) __swab16s((x))
 104 #define __be16_to_cpus(x) __swab16s((x))
 105
 106
 107 #endif /* _LINUX_BYTEORDER_LITTLE_ENDIAN_H */