endian.h (1172B) - Raw
1 /*- 2 * Copyright (c) 2021 M. Warner Losh <imp@FreeBSD.org> 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 */ 6 7 /* 8 * A mostly Linux/glibc-compatible endian.h 9 */ 10 11 #ifndef _ENDIAN_H_ 12 #define _ENDIAN_H_ 13 14 /* 15 * FreeBSD's sys/_endian.h is very close to the interface provided on Linux by 16 * glibc's endian.h. 17 */ 18 #include <sys/_endian.h> 19 20 /* 21 * glibc uses double underscore for these symbols. Define these unconditionally. 22 * The compiler defines __BYTE_ORDER__ these days, so we don't do anything 23 * with that since sys/endian.h defines _BYTE_ORDER based on it. 24 */ 25 #define __BIG_ENDIAN _BIG_ENDIAN 26 #define __BYTE_ORDER _BYTE_ORDER 27 #define __LITTLE_ENDIAN _LITTLE_ENDIAN 28 #define __PDP_ENDIAN _PDP_ENDIAN 29 30 /* 31 * FreeBSD's sys/endian.h and machine/endian.h doesn't define a separate 32 * byte order for floats. Use the host non-float byte order. 33 */ 34 #define __FLOAT_WORD_ORDER _BYTE_ORDER 35 36 /* 37 * We don't define BIG_ENDI, LITTLE_ENDI, HIGH_HALF and LOW_HALF macros that 38 * glibc's endian.h defines since those appear to be internal to glibc. 39 * We also don't try to emulate the various helper macros that glibc uses to 40 * limit namespace visibility. 41 */ 42 43 #endif /* _ENDIAN_H_ */