1 /* BFD support for the ARM processor 2 Copyright 1994, 1997, 1999, 2000 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 { bfd_mach_arm_XScale, "xscale" } 97 }; 98 99 static boolean 100 scan (info, string) 101 const struct bfd_arch_info * info; 102 const char * string; 103 { 104 int i; 105 106 /* First test for an exact match */ 107 if (strcasecmp (string, info->printable_name) == 0) 108 return true; 109 110 /* Next check for a processor name instead of an Architecture name */ 111 for (i = sizeof (processors) / sizeof (processors[0]); i--;) 112 { 113 if (strcasecmp (string, processors[ i ].name) == 0) 114 break; 115 } 116 117 if (i != -1 && info->arch == processors[ i ].arch) 118 return true; 119 120 /* Finally check for the default architecture */ 121 if (strcasecmp (string, "arm") == 0) 122 return info->the_default; 123 124 return false; 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, & arch_info_struct[8] ), 140 N( bfd_mach_arm_5TE, "armv5te", false, & arch_info_struct[9] ), 141 N( bfd_mach_arm_XScale, "xscale", false, NULL ) 142 }; 143 144 const bfd_arch_info_type bfd_arm_arch = 145 N( 0, "arm", true, & arch_info_struct[0] ); 146