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- Add detection for <sys/byteorder.h> and make endianness detection

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work on Solaris 2.6 (Yuval) and Solaris 9 (Anton).
- Emulate bswap_{16,32,64}() if not available/we cannot find them.

(Logical change 1.396)
This commit is contained in:
cantab.net!aia21 2004-05-24 13:54:07 +00:00
parent 68b1426c28
commit 7d0ecd9832
1 changed files with 31 additions and 15 deletions
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46
include/ntfs/endians.h
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@ -46,27 +46,37 @@
#ifdef HAVE_MACHINE_ENDIAN_H
# include <machine/endian.h>
#endif
#ifdef HAVE_SYS_BYTEORDER_H
# include <sys/byteorder.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifndef __BYTE_ORDER
# ifdef _BYTE_ORDER
# if defined(_BYTE_ORDER)
# define __BYTE_ORDER _BYTE_ORDER
# define __LITTLE_ENDIAN _LITTLE_ENDIAN
# define __BIG_ENDIAN _BIG_ENDIAN
# elif defined(BYTE_ORDER)
# define __BYTE_ORDER BYTE_ORDER
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __BIG_ENDIAN BIG_ENDIAN
# elif defined(__BYTE_ORDER__)
# define __BYTE_ORDER __BYTE_ORDER__
# define __LITTLE_ENDIAN __LITTLE_ENDIAN__
# define __BIG_ENDIAN __BIG_ENDIAN__
# elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
# define __BYTE_ORDER 1
# define __LITTLE_ENDIAN 1
# define __BIG_ENDIAN 0
# elif !defined(_LITTLE_ENDIAN) && defined(_BIG_ENDIAN)
# define __BYTE_ORDER 0
# define __LITTLE_ENDIAN 1
# define __BIG_ENDIAN 0
# else
# ifdef BYTE_ORDER
# define __BYTE_ORDER BYTE_ORDER
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __BIG_ENDIAN BIG_ENDIAN
# else
# error "__BYTE_ORDER is not defined."
# endif
# error "__BYTE_ORDER is not defined."
# endif
#endif
#ifdef HAVE_BYTESWAP_H
# include <byteswap.h>
#endif
#define __ntfs_bswap_constant_16(x) \
(u16)((((u16)(x) & 0xff00) >> 8) | \
@ -88,6 +98,14 @@
(((u64)(x) & 0x000000000000ff00ull) << 40) | \
(((u64)(x) & 0x00000000000000ffull) << 56))
#ifdef HAVE_BYTESWAP_H
# include <byteswap.h>
#else
# define bswap_16(x) __ntfs_bswap_constant_16(x)
# define bswap_32(x) __ntfs_bswap_constant_32(x)
# define bswap_64(x) __ntfs_bswap_constant_64(x)
#endif
#if defined(__LITTLE_ENDIAN) && (__BYTE_ORDER == __LITTLE_ENDIAN)
#define __le16_to_cpu(x) (x)
@ -170,9 +188,8 @@
#define scpu_to_le32p(x) (s32)__cpu_to_le32(*(s32*)(x))
#define scpu_to_le64p(x) (s64)__cpu_to_le64(*(s64*)(x))
/*
* Constant endianness conversion defines.
*/
/* Constant endianness conversion defines. */
#define const_le16_to_cpu(x) __constant_le16_to_cpu(x)
#define const_le32_to_cpu(x) __constant_le32_to_cpu(x)
#define const_le64_to_cpu(x) __constant_le64_to_cpu(x)
@ -182,4 +199,3 @@
#define const_cpu_to_le64(x) __constant_cpu_to_le64(x)
#endif /* defined _NTFS_ENDIANS_H */