mirror of https://gitee.com/openkylin/linux.git
34 lines
726 B
C
34 lines
726 B
C
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#ifndef _X86_64_BYTEORDER_H
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#define _X86_64_BYTEORDER_H
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#include <asm/types.h>
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#include <linux/compiler.h>
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#ifdef __GNUC__
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static __inline__ __attribute_const__ __u64 ___arch__swab64(__u64 x)
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{
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__asm__("bswapq %0" : "=r" (x) : "0" (x));
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return x;
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}
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static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)
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{
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__asm__("bswapl %0" : "=r" (x) : "0" (x));
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return x;
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}
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/* Do not define swab16. Gcc is smart enough to recognize "C" version and
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convert it into rotation or exhange. */
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#define __arch__swab32(x) ___arch__swab32(x)
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#define __arch__swab64(x) ___arch__swab64(x)
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#endif /* __GNUC__ */
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#define __BYTEORDER_HAS_U64__
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#include <linux/byteorder/little_endian.h>
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#endif /* _X86_64_BYTEORDER_H */
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