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      1 /* BFD support for the Altera Nios II processor.
      2    Copyright (C) 2012-2016 Free Software Foundation, Inc.
      3    Contributed by Nigel Gray (ngray (at) 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(BITS_WORD, BITS_ADDR, NUMBER, PRINT, DEFAULT, NEXT)		\
     48   {							\
     49     BITS_WORD, /*  bits in a word */			\
     50     BITS_ADDR, /* bits in an address */			\
     51     8,	/* 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   }
     63 
     64 #define NIOS2R1_NEXT &arch_info_struct[0]
     65 #define NIOS2R2_NEXT &arch_info_struct[1]
     66 
     67 static const bfd_arch_info_type arch_info_struct[] =
     68 {
     69   N (32, 32, bfd_mach_nios2r1, "nios2:r1", FALSE, NIOS2R2_NEXT),
     70   N (32, 32, bfd_mach_nios2r2, "nios2:r2", FALSE, NULL),
     71 };
     72 
     73 const bfd_arch_info_type bfd_nios2_arch =
     74   N (32, 32, 0, "nios2", TRUE, NIOS2R1_NEXT);
     75