bfd/cpu-arm.c

   1 /* BFD support for the ARM processor
   2    Copyright 1994 Free Software Foundation, Inc.
   3    Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
   4
   5 This file is part of BFD, the Binary File Descriptor library.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24
  25 /* This routine is provided two arch_infos and works out which ARM
  26    machine which would be compatible with both and returns a pointer
  27    to its info structure */
  28
  29 static const bfd_arch_info_type *
  30 compatible (a,b)
  31      const bfd_arch_info_type * a;
  32      const bfd_arch_info_type * b;
  33 {
  34   /* For now keep things real simple - insist on matching architecture types */
  35
  36   return (a->arch != b->arch || a->mach != b->mach ) ? NULL : a ;
  37 }
  38
  39 static struct
  40 {
  41   enum bfd_architecture arch;
  42   char *                name;
  43 }
  44 processors[] =
  45 {
  46   { bfd_mach_arm_2,  "arm2"     },
  47   { bfd_mach_arm_2a, "arm250"   },
  48   { bfd_mach_arm_2a, "arm3"     },
  49   { bfd_mach_arm_3,  "arm6"     },
  50   { bfd_mach_arm_3,  "arm60"    },
  51   { bfd_mach_arm_3,  "arm600"   },
  52   { bfd_mach_arm_3,  "arm610"   },
  53   { bfd_mach_arm_3,  "arm7"     },
  54   { bfd_mach_arm_3,  "arm710"   },
  55   { bfd_mach_arm_3,  "arm7500"  },
  56   { bfd_mach_arm_3,  "arm7d"    },
  57   { bfd_mach_arm_3,  "arm7di"   },
  58   { bfd_mach_arm_3M, "arm7dm"   },
  59   { bfd_mach_arm_3M, "arm7dmi"  },
  60   { bfd_mach_arm_4,  "arm8"     },
  61   { bfd_mach_arm_4,  "arm810"   },
  62   { bfd_mach_arm_4,  "sa1"      },
  63   { bfd_mach_arm_4T, "arm7tdmi" }
  64 };
  65
  66 static boolean
  67 scan (info, string)
  68      const struct bfd_arch_info * info;
  69      const char * string;
  70 {
  71   int  i;
  72
  73   /* First test for an exact match */
  74   if (strcasecmp (string, info->printable_name) == 0)
  75     return true;
  76
  77   /* Next check for a processor name instead of an Architecture name */
  78   for (i = sizeof (processors) / sizeof (processors[0]); i--;)
  79     {
  80       if (strcasecmp (string, processors[ i ].name) == 0)
  81         break;
  82     }
  83
  84   if (i != -1 && info->arch == processors[ i ].arch)
  85     return true;
  86
  87   /* Finally check for the default architecture */
  88   if (strcasecmp (string, "arm") == 0)
  89     return info->the_default;
  90
  91   return false;
  92 }
  93
  94
  95 #define N(number, print, default, next)  \
  96 {  32, 32, 8, bfd_arch_arm, number, "arm", print, 4, default, compatible, scan, next }
  97
  98 static const bfd_arch_info_type arch_info_struct[] =
  99 {
 100   N( bfd_mach_arm_2,  "ARMv2",  false, & arch_info_struct[1] ),
 101   N( bfd_mach_arm_2a, "ARMv2a", false, & arch_info_struct[2] ),
 102   N( bfd_mach_arm_3,  "ARMv3",  false, & arch_info_struct[3] ),
 103   N( bfd_mach_arm_4,  "ARMv4",  false, & arch_info_struct[4] ),
 104   N( bfd_mach_arm_4T, "ARMv4T", false, NULL )
 105 };
 106
 107 const bfd_arch_info_type bfd_arm_arch =
 108   N( bfd_mach_arm_3M, "ARMv3M", true, & arch_info_struct[0] );