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endian: #define __BYTE_ORDER

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Linux does not define __BYTE_ORDER in its endian header files which makes
some header files bend backwards to get at the current endian.  Lets
#define __BYTE_ORDER in big_endian.h/litte_endian.h to make it easier for
header files that are used in user space too.

In userspace the convention is that

  1. _both_ __LITTLE_ENDIAN and __BIG_ENDIAN are defined,
  2. you have to test for e.g. __BYTE_ORDER == __BIG_ENDIAN.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joakim Tjernlund
2010-05-24 14:33:01 -07:00
committed by Linus Torvalds
parent e47103b1af
commit b3b77c8cae
9 changed files with 8 additions and 31 deletions
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5
arch/alpha/math-emu/sfp-util.h
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@@ -28,8 +28,3 @@ extern unsigned long __udiv_qrnnd (unsigned long *, unsigned long,
#define UDIV_NEEDS_NORMALIZATION 1
#define abort() goto bad_insn
#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN -1
#endif
#define __BYTE_ORDER __LITTLE_ENDIAN