bfd/cpu-rs6000.c

   1 /* BFD back-end for rs6000 support
   2    Copyright (C) 1990-2023 Free Software Foundation, Inc.
   3    Written by Mimi Phuong-Thao Vo of IBM
   4    and John Gilmore of Cygnus Support.
   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 /* The RS/6000 architecture is compatible with the PowerPC common
  28    architecture.  */
  29
  30 static const bfd_arch_info_type *
  31 rs6000_compatible (const bfd_arch_info_type *a,
  32                    const bfd_arch_info_type *b)
  33 {
  34   BFD_ASSERT (a->arch == bfd_arch_rs6000);
  35   switch (b->arch)
  36     {
  37     default:
  38       return NULL;
  39     case bfd_arch_rs6000:
  40       return bfd_default_compatible (a, b);
  41     case bfd_arch_powerpc:
  42       if (a->mach == bfd_mach_rs6k)
  43         return b;
  44       return NULL;
  45     }
  46   /*NOTREACHED*/
  47 }
  48
  49 #define N(NUMBER, PRINT, DEFAULT, NEXT)                 \
  50   {                                                     \
  51     32,        /* Bits in a word.  */                   \
  52     32,        /* Bits in an address.  */               \
  53     8,         /* Bits in a byte.  */                   \
  54     bfd_arch_rs6000,                                    \
  55     NUMBER,                                             \
  56     "rs6000",                                           \
  57     PRINT,                                              \
  58     3,          /* Section alignment power.  */         \
  59     DEFAULT,                                            \
  60     rs6000_compatible,                                  \
  61     bfd_default_scan,                                   \
  62     bfd_arch_default_fill,                              \
  63     NEXT,                                               \
  64     0 /* Maximum offset of a reloc from the start of an insn.  */ \
  65   }
  66
  67 static const bfd_arch_info_type arch_info_struct[3] =
  68 {
  69   N (bfd_mach_rs6k_rs1, "rs6000:rs1", false, arch_info_struct + 1),
  70   N (bfd_mach_rs6k_rsc, "rs6000:rsc", false, arch_info_struct + 2),
  71   N (bfd_mach_rs6k_rs2, "rs6000:rs2", false, NULL)
  72 };
  73
  74 const bfd_arch_info_type bfd_rs6000_arch =
  75   N (bfd_mach_rs6k, "rs6000:6000", true, arch_info_struct + 0);