projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 72f33921 | 1 | /* Interface to byteswapping functions. |
| b3adc24a | 2 | Copyright (C) 2006-2020 Free Software Foundation, Inc. |
| 72f33921 NA |
3 | |
| 4 | This file is part of libctf. | |
| 5 | ||
| 6 | libctf is free software; you can redistribute it and/or modify it under | |
| 7 | the terms of the GNU General Public License as published by the Free | |
| 8 | Software Foundation; either version 3, or (at your option) any later | |
| 9 | version. | |
| 10 | ||
| 11 | This program is distributed in the hope that it will be useful, but | |
| 12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| 14 | See the GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with this program; see the file COPYING. If not see | |
| 18 | <http://www.gnu.org/licenses/>. */ | |
| 19 | ||
| 20 | #ifndef _CTF_SWAP_H | |
| 21 | #define _CTF_SWAP_H | |
| 22 | ||
| 23 | #include "config.h" | |
| 24 | #include <stdint.h> | |
| 25 | ||
| 26 | #ifdef HAVE_BYTESWAP_H | |
| 27 | #include <byteswap.h> | |
| 28 | #else | |
| 29 | ||
| 30 | /* Provide our own versions of the byteswap functions. */ | |
| cbbbc402 | 31 | static inline uint16_t |
| a0486bac | 32 | bswap_16 (uint16_t v) |
| 72f33921 NA |
33 | { |
| 34 | return ((v >> 8) & 0xff) | ((v & 0xff) << 8); | |
| 35 | } | |
| 36 | ||
| cbbbc402 | 37 | static inline uint32_t |
| a0486bac | 38 | bswap_32 (uint32_t v) |
| 72f33921 NA |
39 | { |
| 40 | return ( ((v & 0xff000000) >> 24) | |
| 41 | | ((v & 0x00ff0000) >> 8) | |
| 42 | | ((v & 0x0000ff00) << 8) | |
| 43 | | ((v & 0x000000ff) << 24)); | |
| 44 | } | |
| 45 | ||
| 11978942 | 46 | static inline uint64_t |
| a0486bac JM |
47 | bswap_identity_64 (uint64_t v) |
| 48 | { | |
| 49 | return v; | |
| 50 | } | |
| 51 | ||
| cbbbc402 | 52 | static inline uint64_t |
| a0486bac | 53 | bswap_64 (uint64_t v) |
| 72f33921 NA |
54 | { |
| 55 | return ( ((v & 0xff00000000000000ULL) >> 56) | |
| 56 | | ((v & 0x00ff000000000000ULL) >> 40) | |
| 57 | | ((v & 0x0000ff0000000000ULL) >> 24) | |
| 58 | | ((v & 0x000000ff00000000ULL) >> 8) | |
| 59 | | ((v & 0x00000000ff000000ULL) << 8) | |
| 60 | | ((v & 0x0000000000ff0000ULL) << 24) | |
| 61 | | ((v & 0x000000000000ff00ULL) << 40) | |
| 62 | | ((v & 0x00000000000000ffULL) << 56)); | |
| 63 | } | |
| 64 | #endif /* !defined(HAVE_BYTESWAP_H) */ | |
| 65 | ||
| 66 | #endif /* !defined(_CTF_SWAP_H) */ |