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 **************************************************************************** 11 ****************************************************************************/ 12 #ifndef __ASM_ARM_UNALIGNED_H 13 #define __ASM_ARM_UNALIGNED_H 14 15 #include <asm/types.h> 16 17 #define __get_unaligned_2_le(__p) (__p[0] | __p[1] << 8) 18 19 #define __get_unaligned_2_be(__p) (__p[0] << 8 | __p[1]) 20 21 #define __get_unaligned_4_le(__p) (__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24) 22 23 #define __get_unaligned_4_be(__p) (__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3]) 24 25 #define __get_unaligned_le(ptr) ({ __typeof__(*(ptr)) __v; __u8 *__p = (__u8 *)(ptr); switch (sizeof(*(ptr))) { case 1: __v = *(ptr); break; case 2: __v = __get_unaligned_2_le(__p); break; case 4: __v = __get_unaligned_4_le(__p); break; case 8: { unsigned int __v1, __v2; __v2 = __get_unaligned_4_le((__p+4)); __v1 = __get_unaligned_4_le(__p); __v = ((unsigned long long)__v2 << 32 | __v1); } break; default: __v = __bug_unaligned_x(__p); break; } __v; }) 26 27 #define __get_unaligned_be(ptr) ({ __typeof__(*(ptr)) __v; __u8 *__p = (__u8 *)(ptr); switch (sizeof(*(ptr))) { case 1: __v = *(ptr); break; case 2: __v = __get_unaligned_2_be(__p); break; case 4: __v = __get_unaligned_4_be(__p); break; case 8: { unsigned int __v1, __v2; __v2 = __get_unaligned_4_be(__p); __v1 = __get_unaligned_4_be((__p+4)); __v = ((unsigned long long)__v2 << 32 | __v1); } break; default: __v = __bug_unaligned_x(__p); break; } __v; }) 28 29 #define __put_unaligned_le(val,ptr) ({ switch (sizeof(*(ptr))) { case 1: *(ptr) = (val); break; case 2: __put_unaligned_2_le((val),(__u8 *)(ptr)); break; case 4: __put_unaligned_4_le((val),(__u8 *)(ptr)); break; case 8: __put_unaligned_8_le((val),(__u8 *)(ptr)); break; default: __bug_unaligned_x(ptr); break; } (void) 0; }) 30 #define __put_unaligned_be(val,ptr) ({ switch (sizeof(*(ptr))) { case 1: *(ptr) = (val); break; case 2: __put_unaligned_2_be((val),(__u8 *)(ptr)); break; case 4: __put_unaligned_4_be((val),(__u8 *)(ptr)); break; case 8: __put_unaligned_8_be((val),(__u8 *)(ptr)); break; default: __bug_unaligned_x(ptr); break; } (void) 0; }) 31 #ifndef __ARMEB__ 32 #define get_unaligned __get_unaligned_le 33 #define put_unaligned __put_unaligned_le 34 #else 35 #define get_unaligned __get_unaligned_be 36 #define put_unaligned __put_unaligned_be 37 #endif 38 #endif 39
