| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright (C) 2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | * |
| 6 | * endian.h compatibility layer. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _LTTNG_UST_ENDIAN_H |
| 10 | #define _LTTNG_UST_ENDIAN_H |
| 11 | |
| 12 | #if (defined(__linux__) || defined(__CYGWIN__)) |
| 13 | #include <endian.h> |
| 14 | #include <byteswap.h> |
| 15 | #elif defined(__FreeBSD__) |
| 16 | #include <sys/endian.h> |
| 17 | #define bswap_16(x) bswap16(x) |
| 18 | #define bswap_32(x) bswap32(x) |
| 19 | #define bswap_64(x) bswap64(x) |
| 20 | #else |
| 21 | #error "Please add support for your OS." |
| 22 | #endif |
| 23 | |
| 24 | /* |
| 25 | * BYTE_ORDER, LITTLE_ENDIAN, and BIG_ENDIAN are only defined on Linux |
| 26 | * if __USE_BSD is defined. Force their definition. |
| 27 | */ |
| 28 | #ifndef BYTE_ORDER |
| 29 | #define BYTE_ORDER __BYTE_ORDER |
| 30 | #endif |
| 31 | |
| 32 | #ifndef LITTLE_ENDIAN |
| 33 | #define LITTLE_ENDIAN __LITTLE_ENDIAN |
| 34 | #endif |
| 35 | |
| 36 | #ifndef BIG_ENDIAN |
| 37 | #define BIG_ENDIAN __BIG_ENDIAN |
| 38 | #endif |
| 39 | |
| 40 | #ifndef FLOAT_WORD_ORDER |
| 41 | #ifdef __FLOAT_WORD_ORDER |
| 42 | #define FLOAT_WORD_ORDER __FLOAT_WORD_ORDER |
| 43 | #else /* __FLOAT_WORD_ORDER */ |
| 44 | #define FLOAT_WORD_ORDER BYTE_ORDER |
| 45 | #endif /* __FLOAT_WORD_ORDER */ |
| 46 | #endif /* FLOAT_WORD_ORDER */ |
| 47 | |
| 48 | #endif /* _LTTNG_UST_ENDIAN_H */ |