diff options
Diffstat (limited to 'klibc/include/endian.h')
| -rw-r--r-- | klibc/include/endian.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/klibc/include/endian.h b/klibc/include/endian.h new file mode 100644 index 0000000000..44f89ccbbc --- /dev/null +++ b/klibc/include/endian.h @@ -0,0 +1,42 @@ +/* + * endian.h + */ + +#ifndef _ENDIAN_H +#define _ENDIAN_H + +#include <klibc/compiler.h> +#include <asm/byteorder.h> + +/* Linux' asm/byteorder.h defines either __LITTLE_ENDIAN or + __BIG_ENDIAN, but the glibc/BSD-ish macros expect both to be + defined with __BYTE_ORDER defining which is actually used... */ + +#if defined(__LITTLE_ENDIAN) +# undef __LITTLE_ENDIAN +# define __LITTLE_ENDIAN 1234 +# define __BIG_ENDIAN 4321 +# define __PDP_ENDIAN 3412 +# define __BYTE_ORDER __LITTLE_ENDIAN +#elif defined(__BIG_ENDIAN) +# undef __BIG_ENDIAN +# define __LITTLE_ENDIAN 1234 +# define __BIG_ENDIAN 4321 +# define __PDP_ENDIAN 3412 +# define __BYTE_ORDER __BIG_ENDIAN +#elif defined(__PDP_ENDIAN) +# undef __PDP_ENDIAN +# define __LITTLE_ENDIAN 1234 +# define __BIG_ENDIAN 4321 +# define __PDP_ENDIAN 3412 +# define __BYTE_ORDER __PDP_ENDIAN +#else +# error "Unknown byte order!" +#endif + +#define LITTLE_ENDIAN __LITTLE_ENDIAN +#define BIG_ENDIAN __BIG_ENDIAN +#define PDP_ENDIAN __PDP_ENDIAN +#define BYTE_ORDER __BYTE_ORDER + +#endif /* _ENDIAN_H */ |