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/stddef.h> 23 #include <asm/bitsperlong.h> 24 #include <asm/swab.h> 25 #define ___constant_swab16(x) ((__u16) ((((__u16) (x) & (__u16) 0x00ffU) << 8) | (((__u16) (x) & (__u16) 0xff00U) >> 8))) 26 #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))) 27 #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))) 28 #define ___constant_swahw32(x) ((__u32) ((((__u32) (x) & (__u32) 0x0000ffffUL) << 16) | (((__u32) (x) & (__u32) 0xffff0000UL) >> 16))) 29 #define ___constant_swahb32(x) ((__u32) ((((__u32) (x) & (__u32) 0x00ff00ffUL) << 8) | (((__u32) (x) & (__u32) 0xff00ff00UL) >> 8))) 30 #ifdef __arch_swab16 31 #else 32 #endif 33 #ifdef __arch_swab32 34 #else 35 #endif 36 #ifdef __arch_swab64 37 #elif defined(__SWAB_64_THRU_32__) 38 #else 39 #endif __fswahw32(__u32 val)40static inline __attribute__((__const__)) __u32 __fswahw32(__u32 val) { 41 #ifdef __arch_swahw32 42 return __arch_swahw32(val); 43 #else 44 return ___constant_swahw32(val); 45 #endif 46 } __fswahb32(__u32 val)47static inline __attribute__((__const__)) __u32 __fswahb32(__u32 val) { 48 #ifdef __arch_swahb32 49 return __arch_swahb32(val); 50 #else 51 return ___constant_swahb32(val); 52 #endif 53 } 54 #define __swab16(x) (__u16) __builtin_bswap16((__u16) (x)) 55 #define __swab32(x) (__u32) __builtin_bswap32((__u32) (x)) 56 #define __swab64(x) (__u64) __builtin_bswap64((__u64) (x)) 57 #if __BITS_PER_LONG == 64 58 #else 59 #endif 60 #define __swahw32(x) (__builtin_constant_p((__u32) (x)) ? ___constant_swahw32(x) : __fswahw32(x)) 61 #define __swahb32(x) (__builtin_constant_p((__u32) (x)) ? ___constant_swahb32(x) : __fswahb32(x)) __swab16p(const __u16 * p)62static __always_inline __u16 __swab16p(const __u16 * p) { 63 #ifdef __arch_swab16p 64 return __arch_swab16p(p); 65 #else 66 return __swab16(* p); 67 #endif 68 } __swab32p(const __u32 * p)69static __always_inline __u32 __swab32p(const __u32 * p) { 70 #ifdef __arch_swab32p 71 return __arch_swab32p(p); 72 #else 73 return __swab32(* p); 74 #endif 75 } __swab64p(const __u64 * p)76static __always_inline __u64 __swab64p(const __u64 * p) { 77 #ifdef __arch_swab64p 78 return __arch_swab64p(p); 79 #else 80 return __swab64(* p); 81 #endif 82 } __swahw32p(const __u32 * p)83static inline __u32 __swahw32p(const __u32 * p) { 84 #ifdef __arch_swahw32p 85 return __arch_swahw32p(p); 86 #else 87 return __swahw32(* p); 88 #endif 89 } __swahb32p(const __u32 * p)90static inline __u32 __swahb32p(const __u32 * p) { 91 #ifdef __arch_swahb32p 92 return __arch_swahb32p(p); 93 #else 94 return __swahb32(* p); 95 #endif 96 } __swab16s(__u16 * p)97static inline void __swab16s(__u16 * p) { 98 #ifdef __arch_swab16s 99 __arch_swab16s(p); 100 #else 101 * p = __swab16p(p); 102 #endif 103 } __swab32s(__u32 * p)104static __always_inline void __swab32s(__u32 * p) { 105 #ifdef __arch_swab32s 106 __arch_swab32s(p); 107 #else 108 * p = __swab32p(p); 109 #endif 110 } __swab64s(__u64 * p)111static __always_inline void __swab64s(__u64 * p) { 112 #ifdef __arch_swab64s 113 __arch_swab64s(p); 114 #else 115 * p = __swab64p(p); 116 #endif 117 } __swahw32s(__u32 * p)118static inline void __swahw32s(__u32 * p) { 119 #ifdef __arch_swahw32s 120 __arch_swahw32s(p); 121 #else 122 * p = __swahw32p(p); 123 #endif 124 } __swahb32s(__u32 * p)125static inline void __swahb32s(__u32 * p) { 126 #ifdef __arch_swahb32s 127 __arch_swahb32s(p); 128 #else 129 * p = __swahb32p(p); 130 #endif 131 } 132 #endif 133