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