newlib/libc/include/machine/_endian.h

   1 #ifndef __MACHINE_ENDIAN_H__
   2 #error "must be included via <machine/endian.h>"
   3 #endif /* !__MACHINE_ENDIAN_H__ */
   4
   5 #include <sys/config.h>
   6
   7 #ifdef __PPC__
   8 /* Get rid of GCC builtin defines on PowerPC */
   9 #ifdef _BIG_ENDIAN
  10 #undef _BIG_ENDIAN
  11 #endif
  12 #ifdef _LITTLE_ENDIAN
  13 #undef _LITTLE_ENDIAN
  14 #endif
  15 #endif /* __PPC__ */
  16
  17 #ifndef _LITTLE_ENDIAN
  18 #define _LITTLE_ENDIAN  1234
  19 #endif
  20
  21 #ifndef _BIG_ENDIAN
  22 #define _BIG_ENDIAN     4321
  23 #endif
  24
  25 #ifndef _PDP_ENDIAN
  26 #define _PDP_ENDIAN     3412
  27 #endif
  28
  29 #ifndef _BYTE_ORDER
  30 #if defined(__IEEE_LITTLE_ENDIAN) || defined(__IEEE_BYTES_LITTLE_ENDIAN)
  31 #define _BYTE_ORDER     _LITTLE_ENDIAN
  32 #else
  33 #define _BYTE_ORDER     _BIG_ENDIAN
  34 #endif
  35 #endif