1 /* $OpenBSD: endian.h,v 1.8 2015/01/11 11:18:36 dlg Exp $ */ 2 3 #ifndef _ARM_ENDIAN_H_ 4 #define _ARM_ENDIAN_H_ 5 6 #ifdef _KERNEL 7 #ifdef __armv7__ 8 #ifdef __GNUC__ 9 10 static inline __uint16_t 11 ___swap16md(__uint16_t x) 12 { 13 __uint16_t rv; 14 15 __asm ("rev16 %0, %1" : "=r" (rv) : "r" (x)); 16 17 return (rv); 18 } 19 #define __swap16md(x) ___swap16md(x) 20 21 static inline __uint32_t 22 ___swap32md(__uint32_t x) 23 { 24 __uint32_t rv; 25 26 __asm ("rev %0, %1" : "=r" (rv) : "r" (x)); 27 28 return (rv); 29 } 30 #define __swap32md(x) ___swap32md(x) 31 32 static inline __uint64_t 33 ___swap64md(__uint64_t x) 34 { 35 __uint64_t rv; 36 37 rv = (__uint64_t)__swap32md(x >> 32) | 38 (__uint64_t)__swap32md(x) << 32; 39 40 return (rv); 41 } 42 #define __swap64md(x) ___swap64md(x) 43 44 /* Tell sys/endian.h we have MD variants of the swap macros. */ 45 #define __HAVE_MD_SWAP 46 47 #endif /* __GNUC__ */ 48 #endif /* __armv7__ */ 49 #endif /* _KERNEL */ 50 51 #define _BYTE_ORDER _LITTLE_ENDIAN 52 #define __STRICT_ALIGNMENT 53 54 #ifndef __FROM_SYS__ENDIAN 55 #include <sys/endian.h> 56 #endif 57 #endif /* _ARM_ENDIAN_H_ */ 58