1  /* BFD support for the Altera Nios II processor.
       2     Copyright (C) 2012-2023 Free Software Foundation, Inc.
       3     Contributed by Nigel Gray (ngray@altera.com).
       4     Contributed by Mentor Graphics, Inc.
       5  
       6     This file is part of BFD, the Binary File Descriptor library.
       7  
       8     This program is free software; you can redistribute it and/or modify
       9     it under the terms of the GNU General Public License as published by
      10     the Free Software Foundation; either version 3 of the License, or
      11     (at your option) any later version.
      12  
      13     This program is distributed in the hope that it will be useful,
      14     but WITHOUT ANY WARRANTY; without even the implied warranty of
      15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16     GNU General Public License for more details.
      17  
      18     You should have received a copy of the GNU General Public License
      19     along with this program; if not, write to the Free Software
      20     Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
      21     MA 02110-1301, USA.  */
      22  
      23  #include "sysdep.h"
      24  #include "bfd.h"
      25  #include "libbfd.h"
      26  
      27  static const bfd_arch_info_type *
      28  nios2_compatible (const bfd_arch_info_type *a,
      29  		  const bfd_arch_info_type *b)
      30  {
      31    if (a->arch != b->arch)
      32      return NULL;
      33  
      34    if (a->bits_per_word != b->bits_per_word)
      35      return NULL;
      36  
      37    if (a->mach == bfd_mach_nios2)
      38      return a;
      39    else if (b->mach == bfd_mach_nios2)
      40      return b;
      41    else if (a->mach != b->mach)
      42      return NULL;
      43  
      44    return a;
      45  }
      46  
      47  #define N(NUMBER, PRINT, DEFAULT, NEXT)			\
      48    {							\
      49      32, /* Bits in a word.  */				\
      50      32, /* Bits in an address.  */			\
      51      8,	/* Bits in a byte.  */				\
      52      bfd_arch_nios2,					\
      53      NUMBER,						\
      54      "nios2",						\
      55      PRINT,						\
      56      3,							\
      57      DEFAULT,						\
      58      nios2_compatible,					\
      59      bfd_default_scan,					\
      60      bfd_arch_default_fill,				\
      61      NEXT,						\
      62      0 /* Maximum offset of a reloc from the start of an insn.  */ \
      63    }
      64  
      65  #define NIOS2R1_NEXT &arch_info_struct[0]
      66  #define NIOS2R2_NEXT &arch_info_struct[1]
      67  
      68  static const bfd_arch_info_type arch_info_struct[2] =
      69  {
      70    N (bfd_mach_nios2r1, "nios2:r1", false, NIOS2R2_NEXT),
      71    N (bfd_mach_nios2r2, "nios2:r2", false, NULL),
      72  };
      73  
      74  const bfd_arch_info_type bfd_nios2_arch =
      75    N (bfd_mach_nios2, "nios2", true, NIOS2R1_NEXT);