bfd/cpu-rs6000.c

   1 /* BFD back-end for rs6000 support
   2    Copyright 1990, 1991, 1993, 1995, 2000, 2002, 2003, 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 2 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, MA 02110-1301, USA.  */
  22
  23 #include "sysdep.h"
  24 #include "bfd.h"
  25 #include "libbfd.h"
  26
  27 /* The RS/6000 architecture is compatible with the PowerPC common
  28    architecture.  */
  29
  30 static const bfd_arch_info_type *rs6000_compatible
  31   PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *));
  32
  33 static const bfd_arch_info_type *
  34 rs6000_compatible (a,b)
  35      const bfd_arch_info_type *a;
  36      const bfd_arch_info_type *b;
  37 {
  38   BFD_ASSERT (a->arch == bfd_arch_rs6000);
  39   switch (b->arch)
  40     {
  41     default:
  42       return NULL;
  43     case bfd_arch_rs6000:
  44       return bfd_default_compatible (a, b);
  45     case bfd_arch_powerpc:
  46       if (a->mach == bfd_mach_rs6k)
  47         return b;
  48       return NULL;
  49     }
  50   /*NOTREACHED*/
  51 }
  52
  53 static const bfd_arch_info_type arch_info_struct[] =
  54 {
  55   {
  56     32, /* 32 bits in a word */
  57     32, /* 32 bits in an address */
  58     8,  /* 8 bits in a byte */
  59     bfd_arch_rs6000,
  60     bfd_mach_rs6k_rs1,
  61     "rs6000",
  62     "rs6000:rs1",
  63     3,
  64     FALSE, /* not the default */
  65     rs6000_compatible,
  66     bfd_default_scan,
  67     &arch_info_struct[1]
  68   },
  69   {
  70     32, /* 32 bits in a word */
  71     32, /* 32 bits in an address */
  72     8,  /* 8 bits in a byte */
  73     bfd_arch_rs6000,
  74     bfd_mach_rs6k_rsc,
  75     "rs6000",
  76     "rs6000:rsc",
  77     3,
  78     FALSE, /* not the default */
  79     rs6000_compatible,
  80     bfd_default_scan,
  81     &arch_info_struct[2]
  82   },
  83   {
  84     32, /* 32 bits in a word */
  85     32, /* 32 bits in an address */
  86     8,  /* 8 bits in a byte */
  87     bfd_arch_rs6000,
  88     bfd_mach_rs6k_rs2,
  89     "rs6000",
  90     "rs6000:rs2",
  91     3,
  92     FALSE, /* not the default */
  93     rs6000_compatible,
  94     bfd_default_scan,
  95     0
  96   }
  97 };
  98
  99 const bfd_arch_info_type bfd_rs6000_arch =
 100   {
 101     32, /* 32 bits in a word */
 102     32, /* 32 bits in an address */
 103     8,  /* 8 bits in a byte */
 104     bfd_arch_rs6000,
 105     bfd_mach_rs6k,      /* POWER common architecture */
 106     "rs6000",
 107     "rs6000:6000",
 108     3,
 109     TRUE, /* the default */
 110     rs6000_compatible,
 111     bfd_default_scan,
 112     &arch_info_struct[0]
 113   };