bfd/archures.c

   1 /* BFD library support routines for architectures.
   2    Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
   3    Hacked by John Gilmore and 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 /*
  22
  23 SECTION
  24         Architectures
  25
  26         BFD keeps one atom in a BFD describing the
  27         architecture of the data attached to the BFD: a pointer to a
  28         <<bfd_arch_info_type>>.
  29
  30         Pointers to structures can be requested independently of a BFD
  31         so that an architecture's information can be interrogated
  32         without access to an open BFD.
  33
  34         The architecture information is provided by each architecture package.
  35         The set of default architectures is selected by the macro
  36         <<SELECT_ARCHITECTURES>>.  This is normally set up in the
  37         @file{config/@var{target}.mt} file of your choice.  If the name is not
  38         defined, then all the architectures supported are included.
  39
  40         When BFD starts up, all the architectures are called with an
  41         initialize method.  It is up to the architecture back end to
  42         insert as many items into the list of architectures as it wants to;
  43         generally this would be one for each machine and one for the
  44         default case (an item with a machine field of 0).
  45
  46         BFD's idea of an architecture is implemented in @file{archures.c}.
  47 */
  48
  49 /*
  50
  51 SUBSECTION
  52         bfd_architecture
  53
  54 DESCRIPTION
  55         This enum gives the object file's CPU architecture, in a
  56         global sense---i.e., what processor family does it belong to?
  57         Another field indicates which processor within
  58         the family is in use.  The machine gives a number which
  59         distinguishes different versions of the architecture,
  60         containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
  61         and 68020 and 68030 for Motorola 68020 and 68030.
  62
  63 .enum bfd_architecture
  64 .{
  65 .  bfd_arch_unknown,   {* File arch not known *}
  66 .  bfd_arch_obscure,   {* Arch known, not one of these *}
  67 .  bfd_arch_m68k,      {* Motorola 68xxx *}
  68 .  bfd_arch_vax,       {* DEC Vax *}
  69 .  bfd_arch_i960,      {* Intel 960 *}
  70 .    {* The order of the following is important.
  71 .       lower number indicates a machine type that
  72 .       only accepts a subset of the instructions
  73 .       available to machines with higher numbers.
  74 .       The exception is the "ca", which is
  75 .       incompatible with all other machines except
  76 .       "core". *}
  77 .
  78 .#define bfd_mach_i960_core      1
  79 .#define bfd_mach_i960_ka_sa     2
  80 .#define bfd_mach_i960_kb_sb     3
  81 .#define bfd_mach_i960_mc        4
  82 .#define bfd_mach_i960_xa        5
  83 .#define bfd_mach_i960_ca        6
  84 . {* start-sanitize-i960xl *}
  85 .#define bfd_mach_i960_xl        7
  86 . {* end-sanitize-i960xl *}
  87 .
  88 .  bfd_arch_a29k,      {* AMD 29000 *}
  89 .  bfd_arch_sparc,     {* SPARC *}
  90 .  bfd_arch_mips,      {* MIPS Rxxxx *}
  91 .  bfd_arch_i386,      {* Intel 386 *}
  92 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
  93 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
  94 .  bfd_arch_i860,      {* Intel 860 *}
  95 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
  96 .  bfd_arch_alliant,   {* Alliant *}
  97 .  bfd_arch_convex,    {* Convex *}
  98 .  bfd_arch_m88k,      {* Motorola 88xxx *}
  99 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 100 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 101 .#define bfd_mach_h8300   1
 102 .#define bfd_mach_h8300h  2
 103 .  bfd_arch_powerpc,   {* PowerPC *}
 104 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 105 .  bfd_arch_hppa,      {* HP PA RISC *}
 106 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 107 .#define bfd_mach_z8001         1
 108 .#define bfd_mach_z8002         2
 109 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 110 .  bfd_arch_sh,        {* Hitachi SH *}
 111 .  bfd_arch_alpha,     {* Dec Alpha *}
 112 .  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
 113 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 114 . {* start-sanitize-rce *}
 115 .  bfd_arch_rce,       {* Motorola RCE *}
 116 . {* end-sanitize-rce *}
 117 . {* start-sanitize-arc *}
 118 .  bfd_arch_arc,       {* Argonaut RISC Core *}
 119 . {* end-sanitize-arc *}
 120 .  bfd_arch_last
 121 .  };
 122
 123
 124 */
 125
 126 #include "bfd.h"
 127 #include "sysdep.h"
 128 #include "libbfd.h"
 129
 130 /*
 131
 132 SUBSECTION
 133         bfd_arch_info
 134
 135 DESCRIPTION
 136         This structure contains information on architectures for use
 137         within BFD.
 138
 139 .
 140 .typedef struct bfd_arch_info
 141 .{
 142 .  int bits_per_word;
 143 .  int bits_per_address;
 144 .  int bits_per_byte;
 145 .  enum bfd_architecture arch;
 146 .  long mach;
 147 .  char *arch_name;
 148 .  CONST  char *printable_name;
 149 .  unsigned int section_align_power;
 150 . {* true if this is the default machine for the architecture *}
 151 .  boolean the_default;
 152 .  CONST struct bfd_arch_info * (*compatible)
 153 .       PARAMS ((CONST struct bfd_arch_info *a,
 154 .                CONST struct bfd_arch_info *b));
 155 .
 156 .  boolean (*scan) PARAMS ((CONST struct bfd_arch_info *, CONST char *));
 157 .  {* How to disassemble an instruction, producing a printable
 158 .     representation on a specified stdio stream.  This isn't
 159 .     defined for most processors at present, because of the size
 160 .     of the additional tables it would drag in, and because gdb
 161 .     wants to use a different interface.  *}
 162 .  unsigned int (*disassemble) PARAMS ((bfd_vma addr, CONST char *data,
 163 .                                       PTR stream));
 164 .
 165 .  struct bfd_arch_info *next;
 166 .} bfd_arch_info_type;
 167 */
 168
 169 bfd_arch_info_type   *bfd_arch_info_list;
 170
 171
 172 /*
 173 FUNCTION
 174         bfd_printable_name
 175
 176 SYNOPSIS
 177         CONST char *bfd_printable_name(bfd *abfd);
 178
 179 DESCRIPTION
 180         Return a printable string representing the architecture and machine
 181         from the pointer to the architecture info structure.
 182
 183 */
 184
 185 CONST char *
 186 bfd_printable_name (abfd)
 187      bfd *abfd;
 188 {
 189   return abfd->arch_info->printable_name;
 190 }
 191
 192
 193
 194 /*
 195 FUNCTION
 196         bfd_scan_arch
 197
 198 SYNOPSIS
 199         bfd_arch_info_type *bfd_scan_arch(CONST char *string);
 200
 201 DESCRIPTION
 202         Figure out if BFD supports any cpu which could be described with
 203         the name @var{string}.  Return a pointer to an <<arch_info>>
 204         structure if a machine is found, otherwise NULL.
 205
 206 */
 207
 208 bfd_arch_info_type *
 209 bfd_scan_arch (string)
 210      CONST char *string;
 211 {
 212   struct bfd_arch_info *ap;
 213
 214   /* Look through all the installed architectures */
 215   for (ap = bfd_arch_info_list;
 216        ap != (bfd_arch_info_type *)NULL;
 217        ap = ap->next) {
 218
 219     if (ap->scan(ap, string))
 220       return ap;
 221   }
 222   return (bfd_arch_info_type *)NULL;
 223 }
 224
 225
 226
 227 /*
 228 FUNCTION
 229         bfd_arch_get_compatible
 230
 231 SYNOPSIS
 232         CONST bfd_arch_info_type *bfd_arch_get_compatible(
 233                 CONST bfd *abfd,
 234                 CONST bfd *bbfd);
 235
 236 DESCRIPTION
 237         Determine whether two BFDs'
 238         architectures and machine types are compatible.  Calculates
 239         the lowest common denominator between the two architectures
 240         and machine types implied by the BFDs and returns a pointer to
 241         an <<arch_info>> structure describing the compatible machine.
 242 */
 243
 244 CONST bfd_arch_info_type *
 245 bfd_arch_get_compatible (abfd, bbfd)
 246      CONST bfd *abfd;
 247      CONST bfd *bbfd;
 248 {
 249   return  abfd->arch_info->compatible(abfd->arch_info,bbfd->arch_info);
 250 }
 251
 252
 253 /*
 254 INTERNAL_DEFINITION
 255         bfd_default_arch_struct
 256
 257 DESCRIPTION
 258         The <<bfd_default_arch_struct>> is an item of
 259         <<bfd_arch_info_type>> which has been initialized to a fairly
 260         generic state.  A BFD starts life by pointing to this
 261         structure, until the correct back end has determined the real
 262         architecture of the file.
 263
 264 .extern bfd_arch_info_type bfd_default_arch_struct;
 265
 266 */
 267
 268 bfd_arch_info_type bfd_default_arch_struct =
 269 {
 270     32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
 271     bfd_default_compatible,
 272     bfd_default_scan,
 273     0,
 274 };
 275
 276 /*
 277 FUNCTION
 278         bfd_set_arch_info
 279
 280 SYNOPSIS
 281         void bfd_set_arch_info(bfd *abfd, bfd_arch_info_type *arg);
 282
 283 DESCRIPTION
 284         Set the architecture info of @var{abfd} to @var{arg}.
 285 */
 286
 287 void
 288 bfd_set_arch_info (abfd, arg)
 289      bfd *abfd;
 290      bfd_arch_info_type *arg;
 291 {
 292   abfd->arch_info = arg;
 293 }
 294
 295 /*
 296 INTERNAL_FUNCTION
 297         bfd_default_set_arch_mach
 298
 299 SYNOPSIS
 300         boolean bfd_default_set_arch_mach(bfd *abfd,
 301                 enum bfd_architecture arch,
 302                 unsigned long mach);
 303
 304 DESCRIPTION
 305         Set the architecture and machine type in BFD @var{abfd}
 306         to @var{arch} and @var{mach}.  Find the correct
 307         pointer to a structure and insert it into the <<arch_info>>
 308         pointer.
 309 */
 310
 311 boolean
 312 bfd_default_set_arch_mach (abfd, arch, mach)
 313      bfd *abfd;
 314      enum bfd_architecture arch;
 315      unsigned    long mach;
 316 {
 317   static struct bfd_arch_info *old_ptr = &bfd_default_arch_struct;
 318   boolean found = false;
 319   /* run through the table to find the one we want, we keep a little
 320      cache to speed things up */
 321   if (old_ptr == 0 || arch != old_ptr->arch || mach != old_ptr->mach) {
 322     bfd_arch_info_type *ptr;
 323     old_ptr = (bfd_arch_info_type *)NULL;
 324     for (ptr = bfd_arch_info_list;
 325          ptr != (bfd_arch_info_type *)NULL;
 326          ptr= ptr->next) {
 327       if (ptr->arch == arch &&
 328           ((ptr->mach == mach) || (ptr->the_default && mach == 0))) {
 329         old_ptr = ptr;
 330         found = true;
 331         break;
 332       }
 333     }
 334     if (found==false) {
 335       /*looked for it and it wasn't there, so put in the default */
 336       old_ptr = &bfd_default_arch_struct;
 337       bfd_set_error (bfd_error_bad_value);
 338     }
 339   }
 340   else {
 341     /* it was in the cache */
 342     found = true;
 343   }
 344
 345   abfd->arch_info = old_ptr;
 346
 347   return found;
 348 }
 349
 350
 351 /*
 352 FUNCTION
 353         bfd_get_arch
 354
 355 SYNOPSIS
 356         enum bfd_architecture bfd_get_arch(bfd *abfd);
 357
 358 DESCRIPTION
 359         Return the enumerated type which describes the BFD @var{abfd}'s
 360         architecture.
 361
 362 */
 363
 364 enum bfd_architecture
 365 bfd_get_arch (abfd)
 366      bfd *abfd;
 367 {
 368     return abfd->arch_info->arch;
 369 }
 370
 371 /*
 372 FUNCTION
 373         bfd_get_mach
 374
 375 SYNOPSIS
 376         unsigned long bfd_get_mach(bfd *abfd);
 377
 378 DESCRIPTION
 379         Return the long type which describes the BFD @var{abfd}'s
 380         machine.
 381 */
 382
 383 unsigned long
 384 bfd_get_mach (abfd)
 385      bfd *abfd;
 386 {
 387     return abfd->arch_info->mach;
 388 }
 389
 390 /*
 391 FUNCTION
 392         bfd_arch_bits_per_byte
 393
 394 SYNOPSIS
 395         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 396
 397 DESCRIPTION
 398         Return the number of bits in one of the BFD @var{abfd}'s
 399         architecture's bytes.
 400
 401 */
 402
 403 unsigned int
 404 bfd_arch_bits_per_byte (abfd)
 405      bfd *abfd;
 406 {
 407   return abfd->arch_info->bits_per_byte;
 408 }
 409
 410 /*
 411 FUNCTION
 412         bfd_arch_bits_per_address
 413
 414 SYNOPSIS
 415         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 416
 417 DESCRIPTION
 418         Return the number of bits in one of the BFD @var{abfd}'s
 419         architecture's addresses.
 420 */
 421
 422 unsigned int
 423 bfd_arch_bits_per_address (abfd)
 424      bfd *abfd;
 425 {
 426   return abfd->arch_info->bits_per_address;
 427 }
 428
 429
 430 extern void bfd_a29k_arch PARAMS ((void));
 431 extern void bfd_alpha_arch PARAMS ((void));
 432 /* start-sanitize-arc */
 433 extern void bfd_arc_arch PARAMS ((void));
 434 /* end-sanitize-arc */
 435 extern void bfd_arm_arch PARAMS ((void));
 436 extern void bfd_h8300_arch PARAMS ((void));
 437 extern void bfd_h8500_arch PARAMS ((void));
 438 extern void bfd_hppa_arch PARAMS ((void));
 439 extern void bfd_i386_arch PARAMS ((void));
 440 extern void bfd_i960_arch PARAMS ((void));
 441 extern void bfd_m68k_arch PARAMS ((void));
 442 extern void bfd_m88k_arch PARAMS ((void));
 443 extern void bfd_mips_arch PARAMS ((void));
 444 extern void bfd_powerpc_arch PARAMS ((void));
 445 extern void bfd_rs6000_arch PARAMS ((void));
 446 extern void bfd_sh_arch PARAMS ((void));
 447 /* start-sanitize-rce */
 448 extern void bfd_rce_arch PARAMS ((void));
 449 /* end-sanitize-rce */
 450 extern void bfd_sparc_arch PARAMS ((void));
 451 extern void bfd_vax_arch PARAMS ((void));
 452 extern void bfd_we32k_arch PARAMS ((void));
 453 extern void bfd_z8k_arch PARAMS ((void));
 454 extern void bfd_ns32k_arch PARAMS ((void));
 455
 456 static void (*const archures_init_table[]) PARAMS ((void)) =
 457 {
 458 #ifdef SELECT_ARCHITECTURES
 459   SELECT_ARCHITECTURES,
 460 #else
 461   bfd_a29k_arch,
 462   bfd_alpha_arch,
 463 /* start-sanitize-arc */
 464   bfd_arc_arch,
 465 /* end-sanitize-arc */
 466   bfd_arm_arch,
 467   bfd_h8300_arch,
 468   bfd_h8500_arch,
 469   bfd_hppa_arch,
 470   bfd_i386_arch,
 471   bfd_i960_arch,
 472   bfd_m68k_arch,
 473   bfd_m88k_arch,
 474   bfd_mips_arch,
 475   bfd_powerpc_arch,
 476   bfd_rs6000_arch,
 477   bfd_sh_arch,
 478 /* start-sanitize-rce */
 479   bfd_rce_arch,
 480 /* end-sanitize-rce */
 481   bfd_sparc_arch,
 482   bfd_vax_arch,
 483   bfd_we32k_arch,
 484   bfd_z8k_arch,
 485   bfd_ns32k_arch,
 486 #endif
 487   0
 488   };
 489
 490
 491
 492 /*
 493 INTERNAL_FUNCTION
 494         bfd_arch_init
 495
 496 SYNOPSIS
 497         void bfd_arch_init(void);
 498
 499 DESCRIPTION
 500         Initialize the architecture dispatch table by
 501         calling all installed architecture packages and getting them
 502         to poke around.
 503 */
 504
 505 void
 506 bfd_arch_init ()
 507 {
 508     void (*const *ptable) PARAMS ((void));
 509     for (ptable = archures_init_table; *ptable ; ptable++)
 510       (*ptable)();
 511 }
 512
 513
 514 /*
 515 INTERNAL_FUNCTION
 516         bfd_arch_linkin
 517
 518 SYNOPSIS
 519         void bfd_arch_linkin(bfd_arch_info_type *ptr);
 520
 521 DESCRIPTION
 522         Link the architecture info structure @var{ptr} into the list.
 523 */
 524
 525 void
 526 bfd_arch_linkin (ptr)
 527      bfd_arch_info_type *ptr;
 528 {
 529   ptr->next = bfd_arch_info_list;
 530   bfd_arch_info_list = ptr;
 531 }
 532
 533
 534 /*
 535 INTERNAL_FUNCTION
 536         bfd_default_compatible
 537
 538 SYNOPSIS
 539         CONST bfd_arch_info_type *bfd_default_compatible
 540         (CONST bfd_arch_info_type *a,
 541         CONST bfd_arch_info_type *b);
 542
 543 DESCRIPTION
 544         The default function for testing for compatibility.
 545 */
 546
 547 CONST bfd_arch_info_type *
 548 bfd_default_compatible (a,b)
 549      CONST bfd_arch_info_type *a;
 550      CONST bfd_arch_info_type *b;
 551 {
 552   if(a->arch != b->arch) return NULL;
 553
 554   if (a->mach > b->mach) {
 555     return a;
 556   }
 557   if (b->mach > a->mach) {
 558     return b;
 559   }
 560   return a;
 561 }
 562
 563
 564 /*
 565 INTERNAL_FUNCTION
 566         bfd_default_scan
 567
 568 SYNOPSIS
 569         boolean bfd_default_scan(CONST struct bfd_arch_info *info, CONST char *string);
 570
 571 DESCRIPTION
 572         The default function for working out whether this is an
 573         architecture hit and a machine hit.
 574 */
 575
 576 boolean
 577 bfd_default_scan (info, string)
 578      CONST struct bfd_arch_info *info;
 579      CONST char *string;
 580 {
 581     CONST  char *ptr_src;
 582     CONST   char *ptr_tst;
 583     unsigned long number;
 584     enum bfd_architecture arch;
 585     /* First test for an exact match */
 586     if (strcmp(string, info->printable_name) == 0) return true;
 587
 588     /* See how much of the supplied string matches with the
 589        architecture, eg the string m68k:68020 would match the 68k entry
 590        up to the :, then we get left with the machine number */
 591
 592     for (ptr_src = string,
 593          ptr_tst = info->arch_name;
 594          *ptr_src && *ptr_tst;
 595          ptr_src++,
 596          ptr_tst++)
 597     {
 598         if (*ptr_src != *ptr_tst) break;
 599     }
 600
 601     /* Chewed up as much of the architecture as will match, skip any
 602        colons */
 603     if (*ptr_src == ':') ptr_src++;
 604
 605     if (*ptr_src == 0) {
 606             /* nothing more, then only keep this one if it is the default
 607                machine for this architecture */
 608             return info->the_default;
 609         }
 610     number = 0;
 611     while (isdigit(*ptr_src)) {
 612             number = number * 10 + *ptr_src  - '0';
 613             ptr_src++;
 614         }
 615
 616     switch (number)
 617     {
 618      case 300:
 619       arch = bfd_arch_h8300;
 620       break;
 621
 622      case 500:
 623       arch = bfd_arch_h8500;
 624       break;
 625
 626       case 68010:
 627       case 68020:
 628       case 68030:
 629       case 68040:
 630       case 68332:
 631       case 68050:
 632       case 68000:
 633         arch = bfd_arch_m68k;
 634         break;
 635       case 386:
 636       case 80386:
 637       case 486:
 638       case 80486:
 639         arch = bfd_arch_i386;
 640         break;
 641       case 29000:
 642         arch = bfd_arch_a29k;
 643         break;
 644
 645        case 8000:
 646         arch = bfd_arch_z8k;
 647         break;
 648
 649       case 32000:
 650         arch = bfd_arch_we32k;
 651         break;
 652
 653       case 860:
 654       case 80860:
 655         arch = bfd_arch_i860;
 656         break;
 657       case 960:
 658       case 80960:
 659         arch = bfd_arch_i960;
 660         break;
 661
 662       case 2000:
 663       case 3000:
 664       case 4000:
 665       case 4400:
 666         arch = bfd_arch_mips;
 667         break;
 668
 669       case 6000:
 670         arch = bfd_arch_rs6000;
 671         break;
 672
 673       default:
 674         return false;
 675     }
 676     if (arch != info->arch)
 677      return false;
 678
 679     if (number != info->mach)
 680      return false;
 681
 682     return true;
 683 }
 684
 685
 686 /*
 687 FUNCTION
 688         bfd_get_arch_info
 689
 690 SYNOPSIS
 691         bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 692
 693 DESCRIPTION
 694         Return the architecture info struct in @var{abfd}.
 695 */
 696
 697 bfd_arch_info_type *
 698 bfd_get_arch_info (abfd)
 699      bfd *abfd;
 700 {
 701   return  abfd->arch_info;
 702 }
 703
 704
 705 /*
 706 FUNCTION
 707         bfd_lookup_arch
 708
 709 SYNOPSIS
 710         bfd_arch_info_type *bfd_lookup_arch
 711                 (enum bfd_architecture
 712                 arch,
 713                 long machine);
 714
 715 DESCRIPTION
 716         Look for the architecure info structure which matches the
 717         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 718         machine/architecture structure which marks itself as the
 719         default.
 720 */
 721
 722 bfd_arch_info_type *
 723 bfd_lookup_arch (arch, machine)
 724      enum bfd_architecture arch;
 725      long machine;
 726 {
 727     bfd_arch_info_type *ap;
 728     bfd_check_init();
 729     for (ap = bfd_arch_info_list;
 730          ap !=  (bfd_arch_info_type *)NULL;
 731          ap = ap->next) {
 732             if (ap->arch == arch &&
 733                 ((ap->mach == machine)
 734                  || (ap->the_default && machine == 0))) {
 735                     return ap;
 736                 }
 737         }
 738     return (bfd_arch_info_type *)NULL;
 739 }
 740
 741
 742 /*
 743 FUNCTION
 744         bfd_printable_arch_mach
 745
 746 SYNOPSIS
 747         CONST char *bfd_printable_arch_mach
 748                 (enum bfd_architecture arch, unsigned long machine);
 749
 750 DESCRIPTION
 751         Return a printable string representing the architecture and
 752         machine type.
 753
 754         This routine is depreciated.
 755 */
 756
 757 CONST char *
 758 bfd_printable_arch_mach (arch, machine)
 759      enum bfd_architecture arch;
 760      unsigned long machine;
 761 {
 762     bfd_arch_info_type *ap = bfd_lookup_arch(arch, machine);
 763     if(ap) return ap->printable_name;
 764     return "UNKNOWN!";
 765 }