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- Move constant bswap macros out of the ifdefs in endians.h so they are 

always available.  (Yuval)
- Add conditional include of sys/param.h in endians.h which provides
  endianness support on Cygwin.  (Yuval)

(Logical change 1.362)
edge.strict_endians
cantab.net!aia21 2004-04-09 14:49:40 +00:00
parent 62d47d085e
commit 58c28e0f78
1 changed files with 34 additions and 29 deletions
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63
include/ntfs/endians.h
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@ -46,6 +46,9 @@
#ifdef HAVE_MACHINE_ENDIAN_H
# include <machine/endian.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifndef __BYTE_ORDER
# ifdef _BYTE_ORDER
# define __BYTE_ORDER _BYTE_ORDER
@ -56,6 +59,8 @@
# define __BYTE_ORDER BYTE_ORDER
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __BIG_ENDIAN BIG_ENDIAN
# else
# error "__BYTE_ORDER is not defined."
# endif
# endif
#endif
@ -63,34 +68,6 @@
# include <byteswap.h>
#endif
#if (__BYTE_ORDER == __LITTLE_ENDIAN)
#define __le16_to_cpu(x) (x)
#define __le32_to_cpu(x) (x)
#define __le64_to_cpu(x) (x)
#define __cpu_to_le16(x) (x)
#define __cpu_to_le32(x) (x)
#define __cpu_to_le64(x) (x)
#define __constant_le16_to_cpu(x) (x)
#define __constant_le32_to_cpu(x) (x)
#define __constant_le64_to_cpu(x) (x)
#define __constant_cpu_to_le16(x) (x)
#define __constant_cpu_to_le32(x) (x)
#define __constant_cpu_to_le64(x) (x)
#elif (__BYTE_ORDER == __BIG_ENDIAN)
#define __le16_to_cpu(x) bswap_16(x)
#define __le32_to_cpu(x) bswap_32(x)
#define __le64_to_cpu(x) bswap_64(x)
#define __cpu_to_le16(x) bswap_16(x)
#define __cpu_to_le32(x) bswap_32(x)
#define __cpu_to_le64(x) bswap_64(x)
#define __ntfs_bswap_constant_16(x) \
(u16)((((u16)(x) & 0xff00) >> 8) | \
(((u16)(x) & 0x00ff) << 8))
@ -111,6 +88,34 @@
(((u64)(x) & 0x000000000000ff00ull) << 40) | \
(((u64)(x) & 0x00000000000000ffull) << 56))
#if defined(__LITTLE_ENDIAN) && (__BYTE_ORDER == __LITTLE_ENDIAN)
#define __le16_to_cpu(x) (x)
#define __le32_to_cpu(x) (x)
#define __le64_to_cpu(x) (x)
#define __cpu_to_le16(x) (x)
#define __cpu_to_le32(x) (x)
#define __cpu_to_le64(x) (x)
#define __constant_le16_to_cpu(x) (x)
#define __constant_le32_to_cpu(x) (x)
#define __constant_le64_to_cpu(x) (x)
#define __constant_cpu_to_le16(x) (x)
#define __constant_cpu_to_le32(x) (x)
#define __constant_cpu_to_le64(x) (x)
#elif defined(__BIG_ENDIAN) && (__BYTE_ORDER == __BIG_ENDIAN)
#define __le16_to_cpu(x) bswap_16(x)
#define __le32_to_cpu(x) bswap_32(x)
#define __le64_to_cpu(x) bswap_64(x)
#define __cpu_to_le16(x) bswap_16(x)
#define __cpu_to_le32(x) bswap_32(x)
#define __cpu_to_le64(x) bswap_64(x)
#define __constant_le16_to_cpu(x) __ntfs_bswap_constant_16((u16)(x))
#define __constant_le32_to_cpu(x) __ntfs_bswap_constant_32((u32)(x))
#define __constant_le64_to_cpu(x) __ntfs_bswap_constant_64((u64)(x))
@ -121,7 +126,7 @@
#else
#error "You must define __BYTE_ORDER to be __LITTLE_ENDIAN or __BIG_ENDIAN"
#error "You must define __BYTE_ORDER to be __LITTLE_ENDIAN or __BIG_ENDIAN."
#endif