fusl/arch/aarch64/bits/endian.h - mojo-testing - Git at Google

 #if __AARCH64EB__
 #define __BYTE_ORDER __BIG_ENDIAN
 #else
 #define __BYTE_ORDER __LITTLE_ENDIAN
 #endif
	#if __AARCH64EB__
	#define __BYTE_ORDER __BIG_ENDIAN
	#else
	#define __BYTE_ORDER __LITTLE_ENDIAN
	#endif