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
bswap_16(unsigned short val)20 static inline unsigned short bswap_16(unsigned short val)
21 {
22 return ((val & 0xff) << 8) | ((val >> 8) & 0xff);
23 }
24
bswap_32(unsigned long val)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
bswap_64(unsigned long long val)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