From b3b77c8caef1750ebeea1054e39e358550ea9f55 Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Mon, 24 May 2010 14:33:01 -0700 Subject: endian: #define __BYTE_ORDER 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 Cc: Geert Uytterhoeven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/byteorder/big_endian.h | 3 +++ include/linux/byteorder/little_endian.h | 3 +++ 2 files changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h index 3c80fd7e8b5..d53a67dff01 100644 --- a/include/linux/byteorder/big_endian.h +++ b/include/linux/byteorder/big_endian.h @@ -7,6 +7,9 @@ #ifndef __BIG_ENDIAN_BITFIELD #define __BIG_ENDIAN_BITFIELD #endif +#ifndef __BYTE_ORDER +#define __BYTE_ORDER __BIG_ENDIAN +#endif #include #include diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h index 83195fb8296..f7f8ad13adb 100644 --- a/include/linux/byteorder/little_endian.h +++ b/include/linux/byteorder/little_endian.h @@ -7,6 +7,9 @@ #ifndef __LITTLE_ENDIAN_BITFIELD #define __LITTLE_ENDIAN_BITFIELD #endif +#ifndef __BYTE_ORDER +#define __BYTE_ORDER __LITTLE_ENDIAN +#endif #include #include -- cgit v1.2.3-18-g5258