| /* BFD library support routines for the i960 architecture. |
| Copyright (C) 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc. |
| Hacked by Steve Chamberlain of Cygnus Support. |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| |
| |
| /* This routine is provided a string, and tries to work out if it |
| could possibly refer to the i960 machine pointed at in the |
| info_struct pointer */ |
| |
| static boolean |
| scan_960_mach (ap, string) |
| const bfd_arch_info_type *ap; |
| const char *string; |
| { |
| unsigned long machine; |
| |
| /* Look for the string i960, or somesuch at the front of the string */ |
| |
| if (strncmp("i960",string,4) == 0) { |
| string+=4; |
| } |
| else { |
| /* no match, can be us */ |
| return false; |
| } |
| if (string[0] == 0) { |
| /* i960 on it's own means core to us*/ |
| if (ap->mach == bfd_mach_i960_core) return true; |
| return false; |
| } |
| |
| if (string[0] != ':') { |
| return false; |
| } |
| string++; |
| if (string[0] == '\0') |
| return false; |
| if (string[0] == 'c' && string[1] == 'o' && string[2] == 'r' && |
| string[3] == 'e' && string[4] == '\0') |
| machine = bfd_mach_i960_core; |
| else if (strcmp (string, "ka_sa") == 0) |
| machine = bfd_mach_i960_ka_sa; |
| else if (strcmp (string, "kb_sb") == 0) |
| machine = bfd_mach_i960_kb_sb; |
| else if (string[1] == '\0' || string[2] != '\0') /* rest are 2-char */ |
| return false; |
| else if (string[0] == 'k' && string[1] == 'b') |
| machine = bfd_mach_i960_kb_sb; |
| else if (string[0] == 's' && string[1] == 'b') |
| machine = bfd_mach_i960_kb_sb; |
| else if (string[0] == 'm' && string[1] == 'c') |
| machine = bfd_mach_i960_mc; |
| else if (string[0] == 'x' && string[1] == 'a') |
| machine = bfd_mach_i960_xa; |
| else if (string[0] == 'c' && string[1] == 'a') |
| machine = bfd_mach_i960_ca; |
| else if (string[0] == 'k' && string[1] == 'a') |
| machine = bfd_mach_i960_ka_sa; |
| else if (string[0] == 's' && string[1] == 'a') |
| machine = bfd_mach_i960_ka_sa; |
| else if (string[0] == 'j' && string[1] == 'x') |
| machine = bfd_mach_i960_jx; |
| else if (string[0] == 'h' && string[1] == 'x') |
| machine = bfd_mach_i960_hx; |
| else |
| return false; |
| if (machine == ap->mach) return true; |
| return false; |
| } |
| |
| |
| |
| /* This routine is provided two arch_infos and works out the i960 |
| machine which would be compatible with both and returns a pointer |
| to its info structure */ |
| |
| static const bfd_arch_info_type * |
| compatible (a,b) |
| const bfd_arch_info_type *a; |
| const bfd_arch_info_type *b; |
| { |
| |
| /* The i960 has distinct subspecies which may not interbreed: |
| CORE CA |
| CORE KA KB MC XA |
| CORE HX JX |
| Any architecture on the same line is compatible, the one on |
| the right is the least restrictive. |
| |
| We represent this information in an array, each machine to a side */ |
| |
| #define ERROR 0 |
| #define CORE bfd_mach_i960_core /*1*/ |
| #define KA bfd_mach_i960_ka_sa /*2*/ |
| #define KB bfd_mach_i960_kb_sb /*3*/ |
| #define MC bfd_mach_i960_mc /*4*/ |
| #define XA bfd_mach_i960_xa /*5*/ |
| #define CA bfd_mach_i960_ca /*6*/ |
| #define JX bfd_mach_i960_jx /*7*/ |
| #define HX bfd_mach_i960_hx /*8*/ |
| #define MAX_ARCH ((int)HX) |
| |
| static CONST unsigned long matrix[MAX_ARCH+1][MAX_ARCH+1] = |
| { |
| { ERROR, CORE, KA, KB, MC, XA, CA, JX, HX }, |
| { CORE, CORE, KA, KB, MC, XA, CA, JX, HX }, |
| { KA, KA, KA, KB, MC, XA, ERROR, ERROR, ERROR}, |
| { KB, KB, KB, KB, MC, XA, ERROR, ERROR, ERROR}, |
| { MC, MC, MC, MC, MC, XA, ERROR, ERROR, ERROR}, |
| { XA, XA, XA, XA, XA, XA, ERROR, ERROR, ERROR}, |
| { CA, CA, ERROR, ERROR, ERROR, ERROR, CA, ERROR, ERROR}, |
| { JX, JX, ERROR, ERROR, ERROR, ERROR, ERROR, JX, HX }, |
| { HX, HX, ERROR, ERROR, ERROR, ERROR, ERROR, HX, HX }, |
| }; |
| |
| |
| if (a->arch != b->arch || matrix[a->mach][b->mach] == ERROR) |
| { |
| return NULL; |
| } |
| else |
| { |
| return (a->mach == matrix[a->mach][b->mach]) ? a : b; |
| } |
| } |
| |
| |
| |
| int bfd_default_scan_num_mach(); |
| #define N(a,b,d,n) \ |
| { 32, 32, 8,bfd_arch_i960,a,"i960",b,3,d,compatible,scan_960_mach,n,} |
| |
| static const bfd_arch_info_type arch_info_struct[] = |
| { |
| N(bfd_mach_i960_ka_sa,"i960:ka_sa",false, &arch_info_struct[1]), |
| N(bfd_mach_i960_kb_sb,"i960:kb_sb",false, &arch_info_struct[2]), |
| N(bfd_mach_i960_mc, "i960:mc", false, &arch_info_struct[3]), |
| N(bfd_mach_i960_xa, "i960:xa", false, &arch_info_struct[4]), |
| N(bfd_mach_i960_ca, "i960:ca", false, &arch_info_struct[5]), |
| N(bfd_mach_i960_jx, "i960:jx", false, &arch_info_struct[6]), |
| N(bfd_mach_i960_hx, "i960:hx", false, 0), |
| }; |
| |
| const bfd_arch_info_type bfd_i960_arch = |
| N(bfd_mach_i960_core, "i960:core", true, &arch_info_struct[0]); |