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openwrt/tools/include/endian.h
Kevin Darbyshire-Bryant 99ddff0c7f tools: Update endian definitions for Mac OSX
- it appears (at least from OS X verison 10.10, Yosemite) that the
    big and little endian defintions have changed.

    the older

       #include <sys/_endian.h>
       #include <architecture/byte_order.h>

    reference yielded the following warning:

         #define __bswap_16(x)      NXSwapShort(x)
                                    ^
       /usr/include/architecture/byte_order.h:45:1: note: 'NXSwapShort' has been explicitly marked deprecated here

    For the new OS X editions, it seems that we need to refer to:

      #include <netinet/in.h>
      #include <libkern/OSByteOrder.h>

    and respectively use 'OSSwapInt16', 'OSSwapInt32', & 'OSSwapInt64', in
    place of 'NXSwapShort', 'NXSwapLong' & 'NXSwapLongLong'.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2018-12-19 15:08:30 +00:00

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C

#ifndef __endian_compat_h
#define __endian_compat_h
#if defined(__linux__) || defined(__CYGWIN__)
#include <byteswap.h>
#include_next <endian.h>
#elif defined(__APPLE__)
#include <netinet/in.h>
#include <libkern/OSByteOrder.h>
#define bswap_16(x) OSSwapInt16(x)
#define bswap_32(x) OSSwapInt32(x)
#define bswap_64(x) OSSwapInt64(x)
#elif defined(__FreeBSD__)
#include <sys/endian.h>
#define bswap_16(x) bswap16(x)
#define bswap_32(x) bswap32(x)
#define bswap_64(x) bswap64(x)
#elif defined(__OpenBSD__)
#include <sys/types.h>
#define bswap_16(x) __swap16(x)
#define bswap_32(x) __swap32(x)
#define bswap_64(x) __swap64(x)
#else
#include <machine/endian.h>
#define bswap_16(x) swap16(x)
#define bswap_32(x) swap32(x)
#define bswap_64(x) swap64(x)
#endif
#ifndef __BYTE_ORDER
#define __BYTE_ORDER BYTE_ORDER
#endif
#ifndef __BIG_ENDIAN
#define __BIG_ENDIAN BIG_ENDIAN
#endif
#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN LITTLE_ENDIAN
#endif
#endif