bfd/cpu-nios2.c

   1 /* BFD support for the Altera Nios II processor.
   2    Copyright (C) 2012-2021 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);