osdWireConfig.h

/*************************************************************************\
* SPDX-License-Identifier: EPICS
* EPICS BASE is distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/

/*
 * Default version of osdWireConfig.h that might
 * work on UNIX like systems that define <sys/param.h>
 *
 * Author Jeffrey O. Hill
 * johill@lanl.gov
 */

#ifndef osdWireConfig_h
#define osdWireConfig_h

/* This file must be usable from both C and C++ */

/* if compilation fails because this wasnt found then you may need to define an OS
   specific osdWireConfig.h */
#include <sys/param.h>

#ifdef __BYTE_ORDER
#   if __BYTE_ORDER == __LITTLE_ENDIAN
#       define EPICS_BYTE_ORDER EPICS_ENDIAN_LITTLE
#   elif __BYTE_ORDER == __BIG_ENDIAN
#       define EPICS_BYTE_ORDER EPICS_ENDIAN_BIG
#   else
#       error EPICS hasnt been ported to run on the <sys/param.h> specified __BYTE_ORDER
#   endif
#else
#   ifdef BYTE_ORDER
#       if BYTE_ORDER == LITTLE_ENDIAN
#           define EPICS_BYTE_ORDER EPICS_ENDIAN_LITTLE
#       elif BYTE_ORDER == BIG_ENDIAN
#           define EPICS_BYTE_ORDER EPICS_ENDIAN_BIG
#       else
#           error EPICS hasnt been ported to run on the <sys/param.h> specified BYTE_ORDER
#       endif
#   else
#       error <sys/param.h> doesnt specify __BYTE_ORDER or BYTE_ORDER - is an OS specific osdWireConfig.h needed?
#   endif
#endif

#ifdef __FLOAT_WORD_ORDER
#   if __FLOAT_WORD_ORDER == __LITTLE_ENDIAN
#       define EPICS_FLOAT_WORD_ORDER EPICS_ENDIAN_LITTLE
#   elif __FLOAT_WORD_ORDER == __BIG_ENDIAN
#       define EPICS_FLOAT_WORD_ORDER EPICS_ENDIAN_BIG
#   else
#       error EPICS hasnt been ported to <sys/param.h> specified __FLOAT_WORD_ORDER
#   endif
#else
#    ifdef FLOAT_WORD_ORDER
#       if FLOAT_WORD_ORDER == LITTLE_ENDIAN
#           define EPICS_FLOAT_WORD_ORDER EPICS_ENDIAN_LITTLE
#       elif FLOAT_WORD_ORDER == BIG_ENDIAN
#           define EPICS_FLOAT_WORD_ORDER EPICS_ENDIAN_BIG
#       else
#           error EPICS hasnt been ported to <sys/param.h> specified FLOAT_WORD_ORDER
#       endif
#   else
        /* assume that if neither __FLOAT_WORD_ORDER nor FLOAT_WORD_ORDER are
           defined then weird fp ordered archs like arm nwfp aren't supported */
#       define EPICS_FLOAT_WORD_ORDER EPICS_BYTE_ORDER
#   endif
#endif

#endif /* ifdef osdWireConfig_h */