libgloss/arc/arc-specific.h

   1 /*
   2  * arc-specific.h -- provide ARC-specific definitions
   3  *
   4  * Copyright (c) 2024 Synopsys Inc.
   5  *
   6  * The authors hereby grant permission to use, copy, modify, distribute,
   7  * and license this software and its documentation for any purpose, provided
   8  * that existing copyright notices are retained in all copies and that this
   9  * notice is included verbatim in any distributions. No written agreement,
  10  * license, or royalty fee is required for any of the authorized uses.
  11  * Modifications to this software may be copyrighted by their authors
  12  * and need not follow the licensing terms described here, provided that
  13  * the new terms are clearly indicated on the first page of each file where
  14  * they apply.
  15  *
  16  */
  17
  18 #ifndef _ARC_SPECIFIC_H
  19 #define _ARC_SPECIFIC_H
  20
  21 /* First check for MetaWare compiler as it also defines __GNUC__.  */
  22 #if defined (__CCAC__)
  23         #define read_aux_reg(r)         _lr(r)
  24         #define write_aux_reg(r, v)     _sr((unsigned int)(v), r)
  25 #elif defined (__GNUC__)
  26         #define read_aux_reg(r)         __builtin_arc_lr(r)
  27         #define write_aux_reg(v, r)     __builtin_arc_sr((unsigned int)(v), r)
  28 #else
  29         #error "Unexpected compiler"
  30 #endif
  31
  32 #endif /* _ARC_SPECIFIC_H */