summaryrefslogtreecommitdiff
path: root/libc/kernel/uapi/linux/swab.h
blob: e96085e4e3cf18b56b67057250a2fdd5a0df07a9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/****************************************************************************
 ****************************************************************************
 ***
 ***   This header was automatically generated from a Linux kernel header
 ***   of the same name, to make information necessary for userspace to
 ***   call into the kernel available to libc.  It contains only constants,
 ***   structures, and macros generated from the original header, and thus,
 ***   contains no copyrightable information.
 ***
 ***   To edit the content of this header, modify the corresponding
 ***   source file (e.g. under external/kernel-headers/original/) then
 ***   run bionic/libc/kernel/tools/update_all.py
 ***
 ***   Any manual change here will be lost the next time this script will
 ***   be run. You've been warned!
 ***
 ****************************************************************************
 ****************************************************************************/
#ifndef _UAPI_LINUX_SWAB_H
#define _UAPI_LINUX_SWAB_H
#include <linux/types.h>
#include <linux/compiler.h>
#include <asm/bitsperlong.h>
#include <asm/swab.h>
#define ___constant_swab16(x) ((__u16) ((((__u16) (x) & (__u16) 0x00ffU) << 8) | (((__u16) (x) & (__u16) 0xff00U) >> 8)))
#define ___constant_swab32(x) ((__u32) ((((__u32) (x) & (__u32) 0x000000ffUL) << 24) | (((__u32) (x) & (__u32) 0x0000ff00UL) << 8) | (((__u32) (x) & (__u32) 0x00ff0000UL) >> 8) | (((__u32) (x) & (__u32) 0xff000000UL) >> 24)))
#define ___constant_swab64(x) ((__u64) ((((__u64) (x) & (__u64) 0x00000000000000ffULL) << 56) | (((__u64) (x) & (__u64) 0x000000000000ff00ULL) << 40) | (((__u64) (x) & (__u64) 0x0000000000ff0000ULL) << 24) | (((__u64) (x) & (__u64) 0x00000000ff000000ULL) << 8) | (((__u64) (x) & (__u64) 0x000000ff00000000ULL) >> 8) | (((__u64) (x) & (__u64) 0x0000ff0000000000ULL) >> 24) | (((__u64) (x) & (__u64) 0x00ff000000000000ULL) >> 40) | (((__u64) (x) & (__u64) 0xff00000000000000ULL) >> 56)))
#define ___constant_swahw32(x) ((__u32) ((((__u32) (x) & (__u32) 0x0000ffffUL) << 16) | (((__u32) (x) & (__u32) 0xffff0000UL) >> 16)))
#define ___constant_swahb32(x) ((__u32) ((((__u32) (x) & (__u32) 0x00ff00ffUL) << 8) | (((__u32) (x) & (__u32) 0xff00ff00UL) >> 8)))
#ifdef __arch_swab16
#else
#endif
#ifdef __arch_swab32
#else
#endif
#ifdef __arch_swab64
#elif defined(__SWAB_64_THRU_32__)
#else
#endif
static inline __attribute__((__const__)) __u32 __fswahw32(__u32 val) {
#ifdef __arch_swahw32
  return __arch_swahw32(val);
#else
  return ___constant_swahw32(val);
#endif
}
static inline __attribute__((__const__)) __u32 __fswahb32(__u32 val) {
#ifdef __arch_swahb32
  return __arch_swahb32(val);
#else
  return ___constant_swahb32(val);
#endif
}
#define __swab16(x) (__u16) __builtin_bswap16((__u16) (x))
#define __swab32(x) (__u32) __builtin_bswap32((__u32) (x))
#define __swab64(x) (__u64) __builtin_bswap64((__u64) (x))
#if __BITS_PER_LONG == 64
#else
#endif
#define __swahw32(x) (__builtin_constant_p((__u32) (x)) ? ___constant_swahw32(x) : __fswahw32(x))
#define __swahb32(x) (__builtin_constant_p((__u32) (x)) ? ___constant_swahb32(x) : __fswahb32(x))
static __always_inline __u16 __swab16p(const __u16 * p) {
#ifdef __arch_swab16p
  return __arch_swab16p(p);
#else
  return __swab16(* p);
#endif
}
static __always_inline __u32 __swab32p(const __u32 * p) {
#ifdef __arch_swab32p
  return __arch_swab32p(p);
#else
  return __swab32(* p);
#endif
}
static __always_inline __u64 __swab64p(const __u64 * p) {
#ifdef __arch_swab64p
  return __arch_swab64p(p);
#else
  return __swab64(* p);
#endif
}
static inline __u32 __swahw32p(const __u32 * p) {
#ifdef __arch_swahw32p
  return __arch_swahw32p(p);
#else
  return __swahw32(* p);
#endif
}
static inline __u32 __swahb32p(const __u32 * p) {
#ifdef __arch_swahb32p
  return __arch_swahb32p(p);
#else
  return __swahb32(* p);
#endif
}
static inline void __swab16s(__u16 * p) {
#ifdef __arch_swab16s
  __arch_swab16s(p);
#else
  * p = __swab16p(p);
#endif
}
static __always_inline void __swab32s(__u32 * p) {
#ifdef __arch_swab32s
  __arch_swab32s(p);
#else
  * p = __swab32p(p);
#endif
}
static __always_inline void __swab64s(__u64 * p) {
#ifdef __arch_swab64s
  __arch_swab64s(p);
#else
  * p = __swab64p(p);
#endif
}
static inline void __swahw32s(__u32 * p) {
#ifdef __arch_swahw32s
  __arch_swahw32s(p);
#else
  * p = __swahw32p(p);
#endif
}
static inline void __swahb32s(__u32 * p) {
#ifdef __arch_swahb32s
  __arch_swahb32s(p);
#else
  * p = __swahb32p(p);
#endif
}
#endif