crypto_primitives.c (1004B)
1 /* This Source Code Form is subject to the terms of the Mozilla Public 2 * License, v. 2.0. If a copy of the MPL was not distributed with this 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 4 5 #ifdef FREEBL_NO_DEPEND 6 #include "stubs.h" 7 #endif 8 9 /* This file holds useful functions and macros for crypto code. */ 10 #include "crypto_primitives.h" 11 12 /* 13 * FREEBL_HTONLL(x): swap bytes in a 64-bit integer. 14 */ 15 #if defined(__GNUC__) && (defined(__x86_64__) || defined(__x86_64)) 16 17 __inline__ PRUint64 18 swap8b(PRUint64 value) 19 { 20 __asm__("bswapq %0" 21 : "+r"(value)); 22 return (value); 23 } 24 25 #elif defined(IS_LITTLE_ENDIAN) && !defined(_MSC_VER) && !__has_builtin(__builtin_bswap64) && !((defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))) 26 27 PRUint64 28 swap8b(PRUint64 x) 29 { 30 PRUint64 t1 = x; 31 t1 = ((t1 & SHA_MASK8) << 8) | ((t1 >> 8) & SHA_MASK8); 32 t1 = ((t1 & SHA_MASK16) << 16) | ((t1 >> 16) & SHA_MASK16); 33 return (t1 >> 32) | (t1 << 32); 34 } 35 36 #endif