Differential D29012 Diff 84968 sys/riscv/include/endian.h

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sys/riscv/include/endian.h

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	* address to high.			* address to high.
	*/			*/
	#define _LITTLE_ENDIAN 1234 /* LSB first: i386, vax */			#define _LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
	#define _BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */			#define _BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
	#define _PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */			#define _PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */

	#define _BYTE_ORDER _LITTLE_ENDIAN			#define _BYTE_ORDER _LITTLE_ENDIAN

				/*
				* Deprecated variants that don't have enough underscores to be useful in more
				* strict namespaces.
				*/
	#if __BSD_VISIBLE			#if __BSD_VISIBLE
	#define LITTLE_ENDIAN _LITTLE_ENDIAN			#define LITTLE_ENDIAN _LITTLE_ENDIAN
	#define BIG_ENDIAN _BIG_ENDIAN			#define BIG_ENDIAN _BIG_ENDIAN
	#define PDP_ENDIAN _PDP_ENDIAN			#define PDP_ENDIAN _PDP_ENDIAN
	#define BYTE_ORDER _BYTE_ORDER			#define BYTE_ORDER _BYTE_ORDER
	#endif			#endif

				/*
				* Define the order of 32-bit words in 64-bit words.
				*/
	#define _QUAD_HIGHWORD 1			#define _QUAD_HIGHWORD 1
	#define _QUAD_LOWWORD 0			#define _QUAD_LOWWORD 0

				#define __bswap16(x) __builtin_bswap16(x)
				#define __bswap32(x) __builtin_bswap32(x)
				#define __bswap64(x) __builtin_bswap64(x)

	#define __ntohl(x) (__bswap32(x))			#define __ntohl(x) (__bswap32(x))
	#define __ntohs(x) (__bswap16(x))			#define __ntohs(x) (__bswap16(x))
	#define __htonl(x) (__bswap32(x))			#define __htonl(x) (__bswap32(x))
	#define __htons(x) (__bswap16(x))			#define __htons(x) (__bswap16(x))

	static __inline __uint64_t
	__bswap64(__uint64_t _x)
	{
	__uint64_t ret;

	ret = (_x >> 56);
	ret \|= ((_x >> 40) & 0xff00);
	ret \|= ((_x >> 24) & 0xff0000);
	ret \|= ((_x >> 8) & 0xff000000);
	ret \|= ((_x << 8) & ((__uint64_t)0xff << 32));
	ret \|= ((_x << 24) & ((__uint64_t)0xff << 40));
	ret \|= ((_x << 40) & ((__uint64_t)0xff << 48));
	ret \|= (_x << 56);

	return (ret);
	}

	static __inline __uint32_t
	__bswap32_var(__uint32_t _x)
	{

	return ((_x >> 24) \| ((_x >> 8) & 0xff00) \| ((_x << 8) & 0xff0000) \|
	((_x << 24) & 0xff000000));
	}

	static __inline __uint16_t
	__bswap16_var(__uint16_t _x)
	{
	__uint32_t ret;

	ret = ((_x >> 8) \| ((_x << 8) & 0xff00));

	return ((__uint16_t)ret);
	}

	#ifdef __OPTIMIZE__

	#define __bswap32_constant(x) \
	((((x) & 0xff000000U) >> 24) \| \
	(((x) & 0x00ff0000U) >> 8) \| \
	(((x) & 0x0000ff00U) << 8) \| \
	(((x) & 0x000000ffU) << 24))

	#define __bswap16_constant(x) \
	((((x) & 0xff00) >> 8) \| \
	(((x) & 0x00ff) << 8))

	#define __bswap16(x) \
	((__uint16_t)(__builtin_constant_p(x) ? \
	__bswap16_constant(x) : \
	__bswap16_var(x)))

	#define __bswap32(x) \
	((__uint32_t)(__builtin_constant_p(x) ? \
	__bswap32_constant(x) : \
	__bswap32_var(x)))

	#else
	#define __bswap16(x) __bswap16_var(x)
	#define __bswap32(x) __bswap32_var(x)

	#endif /* __OPTIMIZE__ */
	#endif /* !_MACHINE_ENDIAN_H_ */			#endif /* !_MACHINE_ENDIAN_H_ */