| 1 | /* BFD support for the ARM processor |
| 2 | Copyright 1994, 95, 97, 1999 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 | static const bfd_arch_info_type *compatible |
| 26 | PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *)); |
| 27 | static boolean scan PARAMS ((const struct bfd_arch_info *, const char *)); |
| 28 | |
| 29 | /* This routine is provided two arch_infos and works out which ARM |
| 30 | machine which would be compatible with both and returns a pointer |
| 31 | to its info structure */ |
| 32 | |
| 33 | static const bfd_arch_info_type * |
| 34 | compatible (a,b) |
| 35 | const bfd_arch_info_type * a; |
| 36 | const bfd_arch_info_type * b; |
| 37 | { |
| 38 | /* If a & b are for different architecture we can do nothing */ |
| 39 | if (a->arch != b->arch) |
| 40 | return NULL; |
| 41 | |
| 42 | /* If a & b are for the same machine then all is well */ |
| 43 | if (a->mach == b->mach) |
| 44 | return a; |
| 45 | |
| 46 | /* Otherwise if either a or b is the 'default' machine then |
| 47 | it can be polymorphed into the other */ |
| 48 | if (a->the_default) |
| 49 | return b; |
| 50 | |
| 51 | if (b->the_default) |
| 52 | return a; |
| 53 | |
| 54 | /* So far all newer ARM architecture cores are supersets of previous cores */ |
| 55 | if (a->mach < b->mach) |
| 56 | return b; |
| 57 | else if (a->mach > b->mach) |
| 58 | return a; |
| 59 | |
| 60 | /* Never reached! */ |
| 61 | return NULL; |
| 62 | } |
| 63 | |
| 64 | static struct |
| 65 | { |
| 66 | enum bfd_architecture arch; |
| 67 | char * name; |
| 68 | } |
| 69 | processors[] = |
| 70 | { |
| 71 | { bfd_mach_arm_2, "arm2" }, |
| 72 | { bfd_mach_arm_2a, "arm250" }, |
| 73 | { bfd_mach_arm_2a, "arm3" }, |
| 74 | { bfd_mach_arm_3, "arm6" }, |
| 75 | { bfd_mach_arm_3, "arm60" }, |
| 76 | { bfd_mach_arm_3, "arm600" }, |
| 77 | { bfd_mach_arm_3, "arm610" }, |
| 78 | { bfd_mach_arm_3, "arm7" }, |
| 79 | { bfd_mach_arm_3, "arm710" }, |
| 80 | { bfd_mach_arm_3, "arm7500" }, |
| 81 | { bfd_mach_arm_3, "arm7d" }, |
| 82 | { bfd_mach_arm_3, "arm7di" }, |
| 83 | { bfd_mach_arm_3M, "arm7dm" }, |
| 84 | { bfd_mach_arm_3M, "arm7dmi" }, |
| 85 | { bfd_mach_arm_4T, "arm7tdmi" }, |
| 86 | { bfd_mach_arm_4, "arm8" }, |
| 87 | { bfd_mach_arm_4, "arm810" }, |
| 88 | { bfd_mach_arm_4, "arm9" }, |
| 89 | { bfd_mach_arm_4, "arm920" }, |
| 90 | { bfd_mach_arm_4T, "arm920t" }, |
| 91 | { bfd_mach_arm_4T, "arm9tdmi" }, |
| 92 | { bfd_mach_arm_4, "sa1" }, |
| 93 | { bfd_mach_arm_4, "strongarm"}, |
| 94 | { bfd_mach_arm_4, "strongarm110" }, |
| 95 | { bfd_mach_arm_4, "strongarm1100" }, |
| 96 | }; |
| 97 | |
| 98 | static boolean |
| 99 | scan (info, string) |
| 100 | const struct bfd_arch_info * info; |
| 101 | const char * string; |
| 102 | { |
| 103 | int i; |
| 104 | |
| 105 | /* First test for an exact match */ |
| 106 | if (strcasecmp (string, info->printable_name) == 0) |
| 107 | return true; |
| 108 | |
| 109 | /* Next check for a processor name instead of an Architecture name */ |
| 110 | for (i = sizeof (processors) / sizeof (processors[0]); i--;) |
| 111 | { |
| 112 | if (strcasecmp (string, processors[ i ].name) == 0) |
| 113 | break; |
| 114 | } |
| 115 | |
| 116 | if (i != -1 && info->arch == processors[ i ].arch) |
| 117 | return true; |
| 118 | |
| 119 | /* Finally check for the default architecture */ |
| 120 | if (strcasecmp (string, "arm") == 0) |
| 121 | return info->the_default; |
| 122 | |
| 123 | return false; |
| 124 | } |
| 125 | |
| 126 | |
| 127 | #define N(number, print, default, next) \ |
| 128 | { 32, 32, 8, bfd_arch_arm, number, "arm", print, 4, default, compatible, scan, next } |
| 129 | |
| 130 | static const bfd_arch_info_type arch_info_struct[] = |
| 131 | { |
| 132 | N( bfd_mach_arm_2, "armv2", false, & arch_info_struct[1] ), |
| 133 | N( bfd_mach_arm_2a, "armv2a", false, & arch_info_struct[2] ), |
| 134 | N( bfd_mach_arm_3, "armv3", false, & arch_info_struct[3] ), |
| 135 | N( bfd_mach_arm_3M, "armv3m", false, & arch_info_struct[4] ), |
| 136 | N( bfd_mach_arm_4, "armv4", false, & arch_info_struct[5] ), |
| 137 | N( bfd_mach_arm_4T, "armv4t", false, & arch_info_struct[6] ), |
| 138 | N( bfd_mach_arm_5, "armv5", false, & arch_info_struct[7] ), |
| 139 | N( bfd_mach_arm_5T, "armv5t", false, NULL ) |
| 140 | }; |
| 141 | |
| 142 | const bfd_arch_info_type bfd_arm_arch = |
| 143 | N( 0, "arm", true, & arch_info_struct[0] ); |