1 /* 2 * Copyright 2012, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ELFUTILS_BYTESWAP_H 18 #define ELFUTILS_BYTESWAP_H 19 20 static inline unsigned short bswap_16(unsigned short val) 21 { 22 return ((val & 0xff) << 8) | ((val >> 8) & 0xff); 23 } 24 25 static inline unsigned long bswap_32(unsigned long val) 26 { 27 return bswap_16((unsigned short)val) << 16 | 28 bswap_16((unsigned short)(val >> 16)); 29 } 30 31 static inline unsigned long long bswap_64(unsigned long long val) 32 { 33 return ((((unsigned long long)bswap_32(val)) << 32) | 34 (((unsigned long long)bswap_32(val >> 32)) & 0xffffffffULL)); 35 } 36 37 #endif /* ELFUTILS_BYTESWAP_H */ 38
