4684ddb6aa
- import libcxx - reduce targets to the one when compiled as a tools Change-Id: Iabb8427f80ff8e89463559a28bcb8b4f2bdbc496
109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
/* ===-- int_endianness.h - configuration header for compiler-rt ------------===
|
|
*
|
|
* The LLVM Compiler Infrastructure
|
|
*
|
|
* This file is dual licensed under the MIT and the University of Illinois Open
|
|
* Source Licenses. See LICENSE.TXT for details.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*
|
|
* This file is a configuration header for compiler-rt.
|
|
* This file is not part of the interface of this library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#ifndef INT_ENDIANNESS_H
|
|
#define INT_ENDIANNESS_H
|
|
|
|
#if defined(__SVR4) && defined(__sun)
|
|
#include <sys/byteorder.h>
|
|
|
|
#if _BYTE_ORDER == _BIG_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 0
|
|
#define _YUGA_BIG_ENDIAN 1
|
|
#elif _BYTE_ORDER == _LITTLE_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 1
|
|
#define _YUGA_BIG_ENDIAN 0
|
|
#endif /* _BYTE_ORDER */
|
|
|
|
#endif /* Solaris and AuroraUX. */
|
|
|
|
/* .. */
|
|
|
|
#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__minix)
|
|
#include <sys/endian.h>
|
|
|
|
#if _BYTE_ORDER == _BIG_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 0
|
|
#define _YUGA_BIG_ENDIAN 1
|
|
#elif _BYTE_ORDER == _LITTLE_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 1
|
|
#define _YUGA_BIG_ENDIAN 0
|
|
#endif /* _BYTE_ORDER */
|
|
|
|
#endif /* *BSD */
|
|
|
|
#if defined(__OpenBSD__) || defined(__Bitrig__)
|
|
#include <machine/endian.h>
|
|
|
|
#if _BYTE_ORDER == _BIG_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 0
|
|
#define _YUGA_BIG_ENDIAN 1
|
|
#elif _BYTE_ORDER == _LITTLE_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 1
|
|
#define _YUGA_BIG_ENDIAN 0
|
|
#endif /* _BYTE_ORDER */
|
|
|
|
#endif /* OpenBSD and Bitrig. */
|
|
|
|
/* .. */
|
|
|
|
/* Mac OSX has __BIG_ENDIAN__ or __LITTLE_ENDIAN__ automatically set by the compiler (at least with GCC) */
|
|
#if defined(__APPLE__) && defined(__MACH__) || defined(__ellcc__ )
|
|
|
|
#ifdef __BIG_ENDIAN__
|
|
#if __BIG_ENDIAN__
|
|
#define _YUGA_LITTLE_ENDIAN 0
|
|
#define _YUGA_BIG_ENDIAN 1
|
|
#endif
|
|
#endif /* __BIG_ENDIAN__ */
|
|
|
|
#ifdef __LITTLE_ENDIAN__
|
|
#if __LITTLE_ENDIAN__
|
|
#define _YUGA_LITTLE_ENDIAN 1
|
|
#define _YUGA_BIG_ENDIAN 0
|
|
#endif
|
|
#endif /* __LITTLE_ENDIAN__ */
|
|
|
|
#endif /* Mac OSX */
|
|
|
|
/* .. */
|
|
|
|
#if defined(__linux__)
|
|
#include <endian.h>
|
|
|
|
#if __BYTE_ORDER == __BIG_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 0
|
|
#define _YUGA_BIG_ENDIAN 1
|
|
#elif __BYTE_ORDER == __LITTLE_ENDIAN
|
|
#define _YUGA_LITTLE_ENDIAN 1
|
|
#define _YUGA_BIG_ENDIAN 0
|
|
#endif /* __BYTE_ORDER */
|
|
|
|
#endif /* GNU/Linux */
|
|
|
|
#if defined(_WIN32)
|
|
|
|
#define _YUGA_LITTLE_ENDIAN 1
|
|
#define _YUGA_BIG_ENDIAN 0
|
|
|
|
#endif /* Windows */
|
|
|
|
/* . */
|
|
|
|
#if !defined(_YUGA_LITTLE_ENDIAN) || !defined(_YUGA_BIG_ENDIAN)
|
|
#error Unable to determine endian
|
|
#endif /* Check we found an endianness correctly. */
|
|
|
|
#endif /* INT_ENDIANNESS_H */
|