| 1 | /* BFD library support routines for the i960 architecture. |
| 2 | Copyright 1990, 1991, 1993, 1994, 1996, 1999, 2000, 2001, 2002 |
| 3 | Free Software Foundation, Inc. |
| 4 | Hacked by Steve Chamberlain 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "bfd.h" |
| 23 | #include "sysdep.h" |
| 24 | #include "libbfd.h" |
| 25 | |
| 26 | static bfd_boolean scan_960_mach |
| 27 | PARAMS ((const bfd_arch_info_type *, const char *)); |
| 28 | static const bfd_arch_info_type *compatible |
| 29 | PARAMS ((const bfd_arch_info_type *, const bfd_arch_info_type *)); |
| 30 | |
| 31 | /* This routine is provided a string, and tries to work out if it |
| 32 | could possibly refer to the i960 machine pointed at in the |
| 33 | info_struct pointer */ |
| 34 | |
| 35 | static bfd_boolean |
| 36 | scan_960_mach (ap, string) |
| 37 | const bfd_arch_info_type *ap; |
| 38 | const char *string; |
| 39 | { |
| 40 | unsigned long machine; |
| 41 | int fail_because_not_80960 = FALSE; |
| 42 | |
| 43 | /* Look for the string i960 at the front of the string. */ |
| 44 | if (strncasecmp ("i960", string, 4) == 0) |
| 45 | { |
| 46 | string += 4; |
| 47 | |
| 48 | /* i960 on it's own means core to us. */ |
| 49 | if (* string == 0) |
| 50 | return ap->mach == bfd_mach_i960_core; |
| 51 | |
| 52 | /* "i960:*" is valid, anything else is not. */ |
| 53 | if (* string != ':') |
| 54 | return FALSE; |
| 55 | |
| 56 | string ++; |
| 57 | } |
| 58 | /* In some bfds the cpu-id is written as "80960KA", "80960KB", |
| 59 | "80960CA" or "80960MC". */ |
| 60 | else if (strncmp ("80960", string, 5) == 0) |
| 61 | { |
| 62 | string += 5; |
| 63 | |
| 64 | /* Set this to TRUE here. If a correct matching postfix |
| 65 | is detected below it will be reset to FALSE. */ |
| 66 | fail_because_not_80960 = TRUE; |
| 67 | } |
| 68 | /* No match, can't be us. */ |
| 69 | else |
| 70 | return FALSE; |
| 71 | |
| 72 | if (* string == '\0') |
| 73 | return FALSE; |
| 74 | |
| 75 | if (string[0] == 'c' && string[1] == 'o' && string[2] == 'r' && |
| 76 | string[3] == 'e' && string[4] == '\0') |
| 77 | machine = bfd_mach_i960_core; |
| 78 | else if (strcasecmp (string, "ka_sa") == 0) |
| 79 | machine = bfd_mach_i960_ka_sa; |
| 80 | else if (strcasecmp (string, "kb_sb") == 0) |
| 81 | machine = bfd_mach_i960_kb_sb; |
| 82 | else if (string[1] == '\0' || string[2] != '\0') /* rest are 2-char. */ |
| 83 | return FALSE; |
| 84 | else if (string[0] == 'k' && string[1] == 'b') |
| 85 | { machine = bfd_mach_i960_kb_sb; fail_because_not_80960 = FALSE; } |
| 86 | else if (string[0] == 's' && string[1] == 'b') |
| 87 | machine = bfd_mach_i960_kb_sb; |
| 88 | else if (string[0] == 'm' && string[1] == 'c') |
| 89 | { machine = bfd_mach_i960_mc; fail_because_not_80960 = FALSE; } |
| 90 | else if (string[0] == 'x' && string[1] == 'a') |
| 91 | machine = bfd_mach_i960_xa; |
| 92 | else if (string[0] == 'c' && string[1] == 'a') |
| 93 | { machine = bfd_mach_i960_ca; fail_because_not_80960 = FALSE; } |
| 94 | else if (string[0] == 'k' && string[1] == 'a') |
| 95 | { machine = bfd_mach_i960_ka_sa; fail_because_not_80960 = FALSE; } |
| 96 | else if (string[0] == 's' && string[1] == 'a') |
| 97 | machine = bfd_mach_i960_ka_sa; |
| 98 | else if (string[0] == 'j' && string[1] == 'x') |
| 99 | machine = bfd_mach_i960_jx; |
| 100 | else if (string[0] == 'h' && string[1] == 'x') |
| 101 | machine = bfd_mach_i960_hx; |
| 102 | else |
| 103 | return FALSE; |
| 104 | |
| 105 | if (fail_because_not_80960) |
| 106 | return FALSE; |
| 107 | |
| 108 | if (machine == ap->mach) |
| 109 | return TRUE; |
| 110 | |
| 111 | return FALSE; |
| 112 | } |
| 113 | |
| 114 | /* This routine is provided two arch_infos and works out the i960 |
| 115 | machine which would be compatible with both and returns a pointer |
| 116 | to its info structure */ |
| 117 | |
| 118 | static const bfd_arch_info_type * |
| 119 | compatible (a,b) |
| 120 | const bfd_arch_info_type *a; |
| 121 | const bfd_arch_info_type *b; |
| 122 | { |
| 123 | |
| 124 | /* The i960 has distinct subspecies which may not interbreed: |
| 125 | CORE CA |
| 126 | CORE KA KB MC XA |
| 127 | CORE HX JX |
| 128 | Any architecture on the same line is compatible, the one on |
| 129 | the right is the least restrictive. |
| 130 | |
| 131 | We represent this information in an array, each machine to a side */ |
| 132 | |
| 133 | #define ERROR 0 |
| 134 | #define CORE bfd_mach_i960_core /*1*/ |
| 135 | #define KA bfd_mach_i960_ka_sa /*2*/ |
| 136 | #define KB bfd_mach_i960_kb_sb /*3*/ |
| 137 | #define MC bfd_mach_i960_mc /*4*/ |
| 138 | #define XA bfd_mach_i960_xa /*5*/ |
| 139 | #define CA bfd_mach_i960_ca /*6*/ |
| 140 | #define JX bfd_mach_i960_jx /*7*/ |
| 141 | #define HX bfd_mach_i960_hx /*8*/ |
| 142 | #define MAX_ARCH ((int)HX) |
| 143 | |
| 144 | static const unsigned long matrix[MAX_ARCH+1][MAX_ARCH+1] = |
| 145 | { |
| 146 | { ERROR, CORE, KA, KB, MC, XA, CA, JX, HX }, |
| 147 | { CORE, CORE, KA, KB, MC, XA, CA, JX, HX }, |
| 148 | { KA, KA, KA, KB, MC, XA, ERROR, ERROR, ERROR}, |
| 149 | { KB, KB, KB, KB, MC, XA, ERROR, ERROR, ERROR}, |
| 150 | { MC, MC, MC, MC, MC, XA, ERROR, ERROR, ERROR}, |
| 151 | { XA, XA, XA, XA, XA, XA, ERROR, ERROR, ERROR}, |
| 152 | { CA, CA, ERROR, ERROR, ERROR, ERROR, CA, ERROR, ERROR}, |
| 153 | { JX, JX, ERROR, ERROR, ERROR, ERROR, ERROR, JX, HX }, |
| 154 | { HX, HX, ERROR, ERROR, ERROR, ERROR, ERROR, HX, HX }, |
| 155 | }; |
| 156 | |
| 157 | if (a->arch != b->arch || matrix[a->mach][b->mach] == ERROR) |
| 158 | { |
| 159 | return NULL; |
| 160 | } |
| 161 | else |
| 162 | { |
| 163 | return (a->mach == matrix[a->mach][b->mach]) ? a : b; |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | #define N(a,b,d,n) \ |
| 168 | { 32, 32, 8,bfd_arch_i960,a,"i960",b,3,d,compatible,scan_960_mach,n,} |
| 169 | |
| 170 | static const bfd_arch_info_type arch_info_struct[] = |
| 171 | { |
| 172 | N(bfd_mach_i960_ka_sa,"i960:ka_sa",FALSE, &arch_info_struct[1]), |
| 173 | N(bfd_mach_i960_kb_sb,"i960:kb_sb",FALSE, &arch_info_struct[2]), |
| 174 | N(bfd_mach_i960_mc, "i960:mc", FALSE, &arch_info_struct[3]), |
| 175 | N(bfd_mach_i960_xa, "i960:xa", FALSE, &arch_info_struct[4]), |
| 176 | N(bfd_mach_i960_ca, "i960:ca", FALSE, &arch_info_struct[5]), |
| 177 | N(bfd_mach_i960_jx, "i960:jx", FALSE, &arch_info_struct[6]), |
| 178 | N(bfd_mach_i960_hx, "i960:hx", FALSE, 0), |
| 179 | }; |
| 180 | |
| 181 | const bfd_arch_info_type bfd_i960_arch = |
| 182 | N(bfd_mach_i960_core, "i960:core", TRUE, &arch_info_struct[0]); |