1/* BFD library support routines for the i960 architecture. 2 Copyright (C) 1990-2017 Free Software Foundation, Inc. 3 Hacked by Steve Chamberlain of Cygnus Support. 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 3 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., 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22#include "sysdep.h" 23#include "bfd.h" 24#include "libbfd.h" 25 26/* This routine is provided a string, and tries to work out if it 27 could possibly refer to the i960 machine pointed at in the 28 info_struct pointer */ 29 30static bfd_boolean 31scan_960_mach (const bfd_arch_info_type *ap, 32 const char *string) 33{ 34 unsigned long machine; 35 int fail_because_not_80960 = FALSE; 36 37 /* Look for the string i960 at the front of the string. */ 38 if (strncasecmp ("i960", string, 4) == 0) 39 { 40 string += 4; 41 42 /* i960 on it's own means core to us. */ 43 if (* string == 0) 44 return ap->mach == bfd_mach_i960_core; 45 46 /* "i960:*" is valid, anything else is not. */ 47 if (* string != ':') 48 return FALSE; 49 50 string ++; 51 } 52 /* In some bfds the cpu-id is written as "80960KA", "80960KB", 53 "80960CA" or "80960MC". */ 54 else if (CONST_STRNEQ (string, "80960")) 55 { 56 string += 5; 57 58 /* Set this to TRUE here. If a correct matching postfix 59 is detected below it will be reset to FALSE. */ 60 fail_because_not_80960 = TRUE; 61 } 62 /* No match, can't be us. */ 63 else 64 return FALSE; 65 66 if (* string == '\0') 67 return FALSE; 68 69 if (string[0] == 'c' && string[1] == 'o' && string[2] == 'r' && 70 string[3] == 'e' && string[4] == '\0') 71 machine = bfd_mach_i960_core; 72 else if (strcasecmp (string, "ka_sa") == 0) 73 machine = bfd_mach_i960_ka_sa; 74 else if (strcasecmp (string, "kb_sb") == 0) 75 machine = bfd_mach_i960_kb_sb; 76 else if (string[1] == '\0' || string[2] != '\0') /* rest are 2-char. */ 77 return FALSE; 78 else if (string[0] == 'k' && string[1] == 'b') 79 { machine = bfd_mach_i960_kb_sb; fail_because_not_80960 = FALSE; } 80 else if (string[0] == 's' && string[1] == 'b') 81 machine = bfd_mach_i960_kb_sb; 82 else if (string[0] == 'm' && string[1] == 'c') 83 { machine = bfd_mach_i960_mc; fail_because_not_80960 = FALSE; } 84 else if (string[0] == 'x' && string[1] == 'a') 85 machine = bfd_mach_i960_xa; 86 else if (string[0] == 'c' && string[1] == 'a') 87 { machine = bfd_mach_i960_ca; fail_because_not_80960 = FALSE; } 88 else if (string[0] == 'k' && string[1] == 'a') 89 { machine = bfd_mach_i960_ka_sa; fail_because_not_80960 = FALSE; } 90 else if (string[0] == 's' && string[1] == 'a') 91 machine = bfd_mach_i960_ka_sa; 92 else if (string[0] == 'j' && string[1] == 'x') 93 machine = bfd_mach_i960_jx; 94 else if (string[0] == 'h' && string[1] == 'x') 95 machine = bfd_mach_i960_hx; 96 else 97 return FALSE; 98 99 if (fail_because_not_80960) 100 return FALSE; 101 102 if (machine == ap->mach) 103 return TRUE; 104 105 return FALSE; 106} 107 108/* This routine is provided two arch_infos and works out the i960 109 machine which would be compatible with both and returns a pointer 110 to its info structure */ 111 112static const bfd_arch_info_type * 113compatible (const bfd_arch_info_type *a, 114 const bfd_arch_info_type *b) 115{ 116 117 /* The i960 has distinct subspecies which may not interbreed: 118 CORE CA 119 CORE KA KB MC XA 120 CORE HX JX 121 Any architecture on the same line is compatible, the one on 122 the right is the least restrictive. 123 124 We represent this information in an array, each machine to a side */ 125 126#define ERROR 0 127#define CORE bfd_mach_i960_core /*1*/ 128#define KA bfd_mach_i960_ka_sa /*2*/ 129#define KB bfd_mach_i960_kb_sb /*3*/ 130#define MC bfd_mach_i960_mc /*4*/ 131#define XA bfd_mach_i960_xa /*5*/ 132#define CA bfd_mach_i960_ca /*6*/ 133#define JX bfd_mach_i960_jx /*7*/ 134#define HX bfd_mach_i960_hx /*8*/ 135#define MAX_ARCH ((int)HX) 136 137 static const unsigned long matrix[MAX_ARCH+1][MAX_ARCH+1] = 138 { 139 { ERROR, CORE, KA, KB, MC, XA, CA, JX, HX }, 140 { CORE, CORE, KA, KB, MC, XA, CA, JX, HX }, 141 { KA, KA, KA, KB, MC, XA, ERROR, ERROR, ERROR}, 142 { KB, KB, KB, KB, MC, XA, ERROR, ERROR, ERROR}, 143 { MC, MC, MC, MC, MC, XA, ERROR, ERROR, ERROR}, 144 { XA, XA, XA, XA, XA, XA, ERROR, ERROR, ERROR}, 145 { CA, CA, ERROR, ERROR, ERROR, ERROR, CA, ERROR, ERROR}, 146 { JX, JX, ERROR, ERROR, ERROR, ERROR, ERROR, JX, HX }, 147 { HX, HX, ERROR, ERROR, ERROR, ERROR, ERROR, HX, HX }, 148 }; 149 150 if (a->arch != b->arch || matrix[a->mach][b->mach] == ERROR) 151 return NULL; 152 153 return (a->mach == matrix[a->mach][b->mach]) ? a : b; 154} 155 156#define N(a,b,d,n) \ 157{ 32, 32, 8,bfd_arch_i960,a,"i960",b,3,d,compatible,scan_960_mach, \ 158 bfd_arch_default_fill, n,} 159 160static const bfd_arch_info_type arch_info_struct[] = 161{ 162 N(bfd_mach_i960_ka_sa,"i960:ka_sa",FALSE, &arch_info_struct[1]), 163 N(bfd_mach_i960_kb_sb,"i960:kb_sb",FALSE, &arch_info_struct[2]), 164 N(bfd_mach_i960_mc, "i960:mc", FALSE, &arch_info_struct[3]), 165 N(bfd_mach_i960_xa, "i960:xa", FALSE, &arch_info_struct[4]), 166 N(bfd_mach_i960_ca, "i960:ca", FALSE, &arch_info_struct[5]), 167 N(bfd_mach_i960_jx, "i960:jx", FALSE, &arch_info_struct[6]), 168 N(bfd_mach_i960_hx, "i960:hx", FALSE, 0), 169}; 170 171const bfd_arch_info_type bfd_i960_arch = 172 N(bfd_mach_i960_core, "i960:core", TRUE, &arch_info_struct[0]); 173