bfd/cpu-rs6000.c

   1 /* BFD back-end for rs6000 support
   2    Copyright 1990, 1991, 1993, 1995, 2000, 2002, 2003, 2005, 2007
   3    Free Software Foundation, Inc.
   4    Written by Mimi Phuong-Thao Vo of IBM
   5    and John Gilmore of Cygnus Support.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  22    MA 02110-1301, USA.  */
  23
  24 #include "sysdep.h"
  25 #include "bfd.h"
  26 #include "libbfd.h"
  27
  28 /* The RS/6000 architecture is compatible with the PowerPC common
  29    architecture.  */
  30
  31 static const bfd_arch_info_type *rs6000_compatible
  32   PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
  33
  34 static const bfd_arch_info_type *
  35 rs6000_compatible (a,b)
  36      const bfd_arch_info_type *a;
  37      const bfd_arch_info_type *b;
  38 {
  39   BFD_ASSERT (a->arch == bfd_arch_rs6000);
  40   switch (b->arch)
  41     {
  42     default:
  43       return NULL;
  44     case bfd_arch_rs6000:
  45       return bfd_default_compatible (a, b);
  46     case bfd_arch_powerpc:
  47       if (a->mach == bfd_mach_rs6k)
  48         return b;
  49       return NULL;
  50     }
  51   /*NOTREACHED*/
  52 }
  53
  54 static const bfd_arch_info_type arch_info_struct[] =
  55 {
  56   {
  57     32, /* 32 bits in a word */
  58     32, /* 32 bits in an address */
  59     8,  /* 8 bits in a byte */
  60     bfd_arch_rs6000,
  61     bfd_mach_rs6k_rs1,
  62     "rs6000",
  63     "rs6000:rs1",
  64     3,
  65     FALSE, /* not the default */
  66     rs6000_compatible,
  67     bfd_default_scan,
  68     bfd_arch_default_fill,
  69     &arch_info_struct[1]
  70   },
  71   {
  72     32, /* 32 bits in a word */
  73     32, /* 32 bits in an address */
  74     8,  /* 8 bits in a byte */
  75     bfd_arch_rs6000,
  76     bfd_mach_rs6k_rsc,
  77     "rs6000",
  78     "rs6000:rsc",
  79     3,
  80     FALSE, /* not the default */
  81     rs6000_compatible,
  82     bfd_default_scan,
  83     bfd_arch_default_fill,
  84     &arch_info_struct[2]
  85   },
  86   {
  87     32, /* 32 bits in a word */
  88     32, /* 32 bits in an address */
  89     8,  /* 8 bits in a byte */
  90     bfd_arch_rs6000,
  91     bfd_mach_rs6k_rs2,
  92     "rs6000",
  93     "rs6000:rs2",
  94     3,
  95     FALSE, /* not the default */
  96     rs6000_compatible,
  97     bfd_default_scan,
  98     bfd_arch_default_fill,
  99     0
 100   }
 101 };
 102
 103 const bfd_arch_info_type bfd_rs6000_arch =
 104   {
 105     32, /* 32 bits in a word */
 106     32, /* 32 bits in an address */
 107     8,  /* 8 bits in a byte */
 108     bfd_arch_rs6000,
 109     bfd_mach_rs6k,      /* POWER common architecture */
 110     "rs6000",
 111     "rs6000:6000",
 112     3,
 113     TRUE, /* the default */
 114     rs6000_compatible,
 115     bfd_default_scan,
 116     bfd_arch_default_fill,
 117     &arch_info_struct[0]
 118   };