1 #ifndef _ENDIAN_H 2 # error "Never use <bits/endian.h> directly; include <endian.h> instead." 3 #endif 4 5 /* Xtensa can be either big or little endian. */ 6 #ifdef __XTENSA_EB__ 7 # define __BYTE_ORDER __BIG_ENDIAN 8 #else 9 # define __BYTE_ORDER __LITTLE_ENDIAN 10 #endif 11