1  /* Copyright (C) 2021-2023 Free Software Foundation, Inc.
       2     Contributed by Oracle.
       3  
       4     This file is part of GNU Binutils.
       5  
       6     This program is free software; you can redistribute it and/or modify
       7     it under the terms of the GNU General Public License as published by
       8     the Free Software Foundation; either version 3, or (at your option)
       9     any later version.
      10  
      11     This program is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14     GNU General Public License for more details.
      15  
      16     You should have received a copy of the GNU General Public License
      17     along with this program; if not, write to the Free Software
      18     Foundation, 51 Franklin Street - Fifth Floor, Boston,
      19     MA 02110-1301, USA.  */
      20  
      21  #ifndef _GP_DEFS_H_
      22  #define _GP_DEFS_H_
      23  
      24  /* Define the ARCH and WSIZE predicates */
      25  /*
      26   * The way we define and use predicates is similar to the
      27   * standard #assert with one important exception:
      28   * if an argument of a predicate is not known the result
      29   * is 'false' and we want a compile time error to avoid
      30   * silent results from typos like ARCH(INTEL), COMPILER(gnu),
      31   * etc.
      32   */
      33  #define ARCH(x)             TOK_A_##x(ARCH)
      34  #define TOK_A_Aarch64(x)    x##_Aarch64
      35  #define TOK_A_SPARC(x)      x##_SPARC
      36  #define TOK_A_Intel(x)      x##_Intel
      37  
      38  #define WSIZE(x)            TOK_W_##x(WSIZE)
      39  #define TOK_W_32(x)         x##_32
      40  #define TOK_W_64(x)         x##_64
      41  
      42  #if defined(sparc) || defined(__sparcv9)
      43  #define ARCH_SPARC          1
      44  #elif defined(__i386__) || defined(__x86_64)
      45  #define ARCH_Intel          1
      46  #elif defined(__aarch64__)
      47  #define ARCH_Aarch64        1
      48  #else
      49  #error "Undefined platform"
      50  #endif
      51  
      52  #if defined(__sparcv9) || defined(__x86_64) || defined(__aarch64__)
      53  #define WSIZE_64            1
      54  #else
      55  #define WSIZE_32            1
      56  #endif
      57  
      58  #ifndef ATTRIBUTE_FALLTHROUGH
      59  # if (GCC_VERSION >= 7000)
      60  #  define ATTRIBUTE_FALLTHROUGH __attribute__ ((__fallthrough__))
      61  # else
      62  #  define ATTRIBUTE_FALLTHROUGH	/* Fall through */
      63  # endif
      64  #endif
      65  
      66  #endif