bfd/archures.c

   1 /* BFD library support routines for architectures.
   2    Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 1997 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include "bfd.h"
  22 #include "sysdep.h"
  23 #include "libbfd.h"
  24 #include <ctype.h>
  25
  26 /*
  27
  28 SECTION
  29         Architectures
  30
  31         BFD keeps one atom in a BFD describing the
  32         architecture of the data attached to the BFD: a pointer to a
  33         <<bfd_arch_info_type>>.
  34
  35         Pointers to structures can be requested independently of a BFD
  36         so that an architecture's information can be interrogated
  37         without access to an open BFD.
  38
  39         The architecture information is provided by each architecture package.
  40         The set of default architectures is selected by the macro
  41         <<SELECT_ARCHITECTURES>>.  This is normally set up in the
  42         @file{config/@var{target}.mt} file of your choice.  If the name is not
  43         defined, then all the architectures supported are included.
  44
  45         When BFD starts up, all the architectures are called with an
  46         initialize method.  It is up to the architecture back end to
  47         insert as many items into the list of architectures as it wants to;
  48         generally this would be one for each machine and one for the
  49         default case (an item with a machine field of 0).
  50
  51         BFD's idea of an architecture is implemented in @file{archures.c}.
  52 */
  53
  54 /*
  55
  56 SUBSECTION
  57         bfd_architecture
  58
  59 DESCRIPTION
  60         This enum gives the object file's CPU architecture, in a
  61         global sense---i.e., what processor family does it belong to?
  62         Another field indicates which processor within
  63         the family is in use.  The machine gives a number which
  64         distinguishes different versions of the architecture,
  65         containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
  66         and 68020 and 68030 for Motorola 68020 and 68030.
  67
  68 .enum bfd_architecture
  69 .{
  70 .  bfd_arch_unknown,   {* File arch not known *}
  71 .  bfd_arch_obscure,   {* Arch known, not one of these *}
  72 .  bfd_arch_m68k,      {* Motorola 68xxx *}
  73 .  bfd_arch_vax,       {* DEC Vax *}
  74 .  bfd_arch_i960,      {* Intel 960 *}
  75 .    {* The order of the following is important.
  76 .       lower number indicates a machine type that
  77 .       only accepts a subset of the instructions
  78 .       available to machines with higher numbers.
  79 .       The exception is the "ca", which is
  80 .       incompatible with all other machines except
  81 .       "core". *}
  82 .
  83 .#define bfd_mach_i960_core      1
  84 .#define bfd_mach_i960_ka_sa     2
  85 .#define bfd_mach_i960_kb_sb     3
  86 .#define bfd_mach_i960_mc        4
  87 .#define bfd_mach_i960_xa        5
  88 .#define bfd_mach_i960_ca        6
  89 .#define bfd_mach_i960_jx        7
  90 .#define bfd_mach_i960_hx        8
  91 .
  92 .  bfd_arch_a29k,      {* AMD 29000 *}
  93 .  bfd_arch_sparc,     {* SPARC *}
  94 .#define bfd_mach_sparc                 1
  95 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env.  *}
  96 .#define bfd_mach_sparc_sparclet        2
  97 .#define bfd_mach_sparc_sparclite       3
  98 .#define bfd_mach_sparc_v8plus          4
  99 .#define bfd_mach_sparc_v8plusa         5 {* with ultrasparc add'ns *}
 100 .#define bfd_mach_sparc_v9              6
 101 .#define bfd_mach_sparc_v9a             7 {* with ultrasparc add'ns *}
 102 .{* Nonzero if MACH has the v9 instruction set.  *}
 103 .#define bfd_mach_sparc_v9_p(mach) \
 104 .  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9a)
 105 .  bfd_arch_mips,      {* MIPS Rxxxx *}
 106 .#define bfd_mach_mips3000              3000
 107 .#define bfd_mach_mips6000              6000
 108 .#define bfd_mach_mips4000              4000
 109 .#define bfd_mach_mips8000              8000
 110 .#define bfd_mach_mips16                  16
 111 . {* start-sanitize-vr5400 *}
 112 .#define bfd_mach_vr5400                5400
 113 .#define bfd_mach_vr5000                5000
 114 . {* end-sanitize-vr5400 *}
 115 .  bfd_arch_i386,      {* Intel 386 *}
 116 .#define bfd_mach_i386_i386 0
 117 .#define bfd_mach_i386_i8086 1
 118 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 119 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 120 .  bfd_arch_i860,      {* Intel 860 *}
 121 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 122 .  bfd_arch_alliant,   {* Alliant *}
 123 .  bfd_arch_convex,    {* Convex *}
 124 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 125 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 126 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 127 .#define bfd_mach_h8300   1
 128 .#define bfd_mach_h8300h  2
 129 .#define bfd_mach_h8300s  3
 130 .  bfd_arch_powerpc,   {* PowerPC *}
 131 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 132 .  bfd_arch_hppa,      {* HP PA RISC *}
 133 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 134 . {* start-sanitize-d30v *}
 135 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 136 . {* end-sanitize-d30v *}
 137 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 138 .#define bfd_mach_z8001         1
 139 .#define bfd_mach_z8002         2
 140 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 141 .  bfd_arch_sh,        {* Hitachi SH *}
 142 .#define bfd_mach_sh            0
 143 .#define bfd_mach_sh3        0x30
 144 .#define bfd_mach_sh3e       0x3e
 145 .  {* start-sanitize-sh4 *}
 146 .#define bfd_mach_sh4        0x40
 147 .  {* end-sanitize-sh4 *}
 148 .  bfd_arch_alpha,     {* Dec Alpha *}
 149 .  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
 150 .#define bfd_mach_arm_2         1
 151 .#define bfd_mach_arm_2a                2
 152 .#define bfd_mach_arm_3         3
 153 .#define bfd_mach_arm_3M        4
 154 .#define bfd_mach_arm_4                 5
 155 .#define bfd_mach_arm_4T        6
 156 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 157 .  bfd_arch_w65,       {* WDC 65816 *}
 158 . {* start-sanitize-tic80 *}
 159 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 160 . {* end-sanitize-tic80 *}
 161 .  bfd_arch_v850,      {* NEC V850 *}
 162 .#define bfd_mach_v850          0
 163 . {* start-sanitize-v850e *}
 164 .#define bfd_mach_v850e         'E'
 165 .#define bfd_mach_v850ea        'A'
 166 . {* end-sanitize-v850e *}
 167 .  bfd_arch_arc,       {* Argonaut RISC Core *}
 168 .#define bfd_mach_arc_base 0
 169 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 170 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 171 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 172 .  bfd_arch_last
 173 .  };
 174
 175
 176 */
 177
 178 /*
 179
 180 SUBSECTION
 181         bfd_arch_info
 182
 183 DESCRIPTION
 184         This structure contains information on architectures for use
 185         within BFD.
 186
 187 .
 188 .typedef struct bfd_arch_info
 189 .{
 190 .  int bits_per_word;
 191 .  int bits_per_address;
 192 .  int bits_per_byte;
 193 .  enum bfd_architecture arch;
 194 .  unsigned long mach;
 195 .  const char *arch_name;
 196 .  const char *printable_name;
 197 .  unsigned int section_align_power;
 198 . {* true if this is the default machine for the architecture *}
 199 .  boolean the_default;
 200 .  const struct bfd_arch_info * (*compatible)
 201 .       PARAMS ((const struct bfd_arch_info *a,
 202 .                const struct bfd_arch_info *b));
 203 .
 204 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 205 .
 206 .  const struct bfd_arch_info *next;
 207 .} bfd_arch_info_type;
 208 */
 209
 210 extern const bfd_arch_info_type bfd_a29k_arch;
 211 extern const bfd_arch_info_type bfd_alpha_arch;
 212 extern const bfd_arch_info_type bfd_arc_arch;
 213 extern const bfd_arch_info_type bfd_arm_arch;
 214 extern const bfd_arch_info_type bfd_d10v_arch;
 215 /* start-sanitize-d30v */
 216 extern const bfd_arch_info_type bfd_d30v_arch;
 217 /* end-sanitize-d30v */
 218 extern const bfd_arch_info_type bfd_h8300_arch;
 219 extern const bfd_arch_info_type bfd_h8500_arch;
 220 extern const bfd_arch_info_type bfd_hppa_arch;
 221 extern const bfd_arch_info_type bfd_i386_arch;
 222 extern const bfd_arch_info_type bfd_i860_arch;
 223 extern const bfd_arch_info_type bfd_i960_arch;
 224 extern const bfd_arch_info_type bfd_m32r_arch;
 225 extern const bfd_arch_info_type bfd_m68k_arch;
 226 extern const bfd_arch_info_type bfd_m88k_arch;
 227 extern const bfd_arch_info_type bfd_mips_arch;
 228 extern const bfd_arch_info_type bfd_mn10200_arch;
 229 extern const bfd_arch_info_type bfd_mn10300_arch;
 230 extern const bfd_arch_info_type bfd_powerpc_arch;
 231 extern const bfd_arch_info_type bfd_rs6000_arch;
 232 extern const bfd_arch_info_type bfd_sh_arch;
 233 extern const bfd_arch_info_type bfd_sparc_arch;
 234 /* start-sanitize-tic80 */
 235 extern const bfd_arch_info_type bfd_tic80_arch;
 236 /* end-sanitize-tic80 */
 237 extern const bfd_arch_info_type bfd_vax_arch;
 238 extern const bfd_arch_info_type bfd_we32k_arch;
 239 extern const bfd_arch_info_type bfd_z8k_arch;
 240 extern const bfd_arch_info_type bfd_ns32k_arch;
 241 extern const bfd_arch_info_type bfd_w65_arch;
 242 extern const bfd_arch_info_type bfd_v850_arch;
 243
 244 static const bfd_arch_info_type * const bfd_archures_list[] =
 245 {
 246 #ifdef SELECT_ARCHITECTURES
 247   SELECT_ARCHITECTURES,
 248 #else
 249   &bfd_a29k_arch,
 250   &bfd_alpha_arch,
 251   &bfd_arc_arch,
 252   &bfd_arm_arch,
 253   &bfd_d10v_arch,
 254 /* start-sanitize-d30v */
 255   &bfd_d30v_arch,
 256 /* end-sanitize-d30v */
 257   &bfd_h8300_arch,
 258   &bfd_h8500_arch,
 259   &bfd_hppa_arch,
 260   &bfd_i386_arch,
 261   &bfd_i860_arch,
 262   &bfd_i960_arch,
 263   &bfd_m32r_arch,
 264   &bfd_m68k_arch,
 265   &bfd_m88k_arch,
 266   &bfd_mips_arch,
 267   &bfd_mn10200_arch,
 268   &bfd_mn10300_arch,
 269   &bfd_powerpc_arch,
 270   &bfd_rs6000_arch,
 271   &bfd_sh_arch,
 272   &bfd_sparc_arch,
 273 /* start-sanitize-tic80 */
 274   &bfd_tic80_arch,
 275 /* end-sanitize-tic80 */
 276   &bfd_vax_arch,
 277   &bfd_we32k_arch,
 278   &bfd_z8k_arch,
 279   &bfd_ns32k_arch,
 280   &bfd_w65_arch,
 281   &bfd_v850_arch,
 282 #endif
 283   0
 284 };
 285
 286 /*
 287 FUNCTION
 288         bfd_printable_name
 289
 290 SYNOPSIS
 291         const char *bfd_printable_name(bfd *abfd);
 292
 293 DESCRIPTION
 294         Return a printable string representing the architecture and machine
 295         from the pointer to the architecture info structure.
 296
 297 */
 298
 299 const char *
 300 bfd_printable_name (abfd)
 301      bfd *abfd;
 302 {
 303   return abfd->arch_info->printable_name;
 304 }
 305
 306
 307
 308 /*
 309 FUNCTION
 310         bfd_scan_arch
 311
 312 SYNOPSIS
 313         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 314
 315 DESCRIPTION
 316         Figure out if BFD supports any cpu which could be described with
 317         the name @var{string}.  Return a pointer to an <<arch_info>>
 318         structure if a machine is found, otherwise NULL.
 319
 320 */
 321
 322 const bfd_arch_info_type *
 323 bfd_scan_arch (string)
 324      const char *string;
 325 {
 326   const bfd_arch_info_type * const *app, *ap;
 327
 328   /* Look through all the installed architectures */
 329   for (app = bfd_archures_list; *app != NULL; app++)
 330     {
 331       for (ap = *app; ap != NULL; ap = ap->next)
 332         {
 333           if (ap->scan (ap, string))
 334             return ap;
 335         }
 336     }
 337
 338   return NULL;
 339 }
 340
 341
 342
 343 /*
 344 FUNCTION
 345         bfd_arch_list
 346
 347 SYNOPSIS
 348         const char **bfd_arch_list(void);
 349
 350 DESCRIPTION
 351         Return a freshly malloced NULL-terminated vector of the names
 352         of all the valid BFD architectures.  Do not modify the names.
 353
 354 */
 355
 356 const char **
 357 bfd_arch_list ()
 358 {
 359   int vec_length = 0;
 360   const char **name_ptr;
 361   const char **name_list;
 362   const bfd_arch_info_type * const *app;
 363
 364   /* Determine the number of architectures */
 365   vec_length = 0;
 366   for (app = bfd_archures_list; *app != NULL; app++)
 367     {
 368       const bfd_arch_info_type *ap;
 369       for (ap = *app; ap != NULL; ap = ap->next)
 370         {
 371           vec_length++;
 372         }
 373     }
 374
 375   name_list = (CONST char **)
 376     bfd_malloc ((vec_length + 1) * sizeof (char **));
 377   if (name_list == NULL)
 378     return NULL;
 379
 380   /* Point the list at each of the names */
 381   name_ptr = name_list;
 382   for (app = bfd_archures_list; *app != NULL; app++)
 383     {
 384       const bfd_arch_info_type *ap;
 385       for (ap = *app; ap != NULL; ap = ap->next)
 386         {
 387           *name_ptr = ap->printable_name;
 388           name_ptr++;
 389         }
 390     }
 391   *name_ptr = NULL;
 392
 393   return name_list;
 394 }
 395
 396
 397
 398 /*
 399 FUNCTION
 400         bfd_arch_get_compatible
 401
 402 SYNOPSIS
 403         const bfd_arch_info_type *bfd_arch_get_compatible(
 404                 const bfd *abfd,
 405                 const bfd *bbfd);
 406
 407 DESCRIPTION
 408         Determine whether two BFDs'
 409         architectures and machine types are compatible.  Calculates
 410         the lowest common denominator between the two architectures
 411         and machine types implied by the BFDs and returns a pointer to
 412         an <<arch_info>> structure describing the compatible machine.
 413 */
 414
 415 const bfd_arch_info_type *
 416 bfd_arch_get_compatible (abfd, bbfd)
 417      const bfd *abfd;
 418      const bfd *bbfd;
 419 {
 420   /* If either architecture is unknown, then all we can do is assume
 421      the user knows what he's doing.  */
 422   if (abfd->arch_info->arch == bfd_arch_unknown)
 423         return bbfd->arch_info;
 424   if (bbfd->arch_info->arch == bfd_arch_unknown)
 425         return abfd->arch_info;
 426
 427   /* Otherwise architecture-specific code has to decide.  */
 428   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 429 }
 430
 431
 432 /*
 433 INTERNAL_DEFINITION
 434         bfd_default_arch_struct
 435
 436 DESCRIPTION
 437         The <<bfd_default_arch_struct>> is an item of
 438         <<bfd_arch_info_type>> which has been initialized to a fairly
 439         generic state.  A BFD starts life by pointing to this
 440         structure, until the correct back end has determined the real
 441         architecture of the file.
 442
 443 .extern const bfd_arch_info_type bfd_default_arch_struct;
 444
 445 */
 446
 447 const bfd_arch_info_type bfd_default_arch_struct =
 448 {
 449     32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
 450     bfd_default_compatible,
 451     bfd_default_scan,
 452     0,
 453 };
 454
 455 /*
 456 FUNCTION
 457         bfd_set_arch_info
 458
 459 SYNOPSIS
 460         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 461
 462 DESCRIPTION
 463         Set the architecture info of @var{abfd} to @var{arg}.
 464 */
 465
 466 void
 467 bfd_set_arch_info (abfd, arg)
 468      bfd *abfd;
 469      const bfd_arch_info_type *arg;
 470 {
 471   abfd->arch_info = arg;
 472 }
 473
 474 /*
 475 INTERNAL_FUNCTION
 476         bfd_default_set_arch_mach
 477
 478 SYNOPSIS
 479         boolean bfd_default_set_arch_mach(bfd *abfd,
 480                 enum bfd_architecture arch,
 481                 unsigned long mach);
 482
 483 DESCRIPTION
 484         Set the architecture and machine type in BFD @var{abfd}
 485         to @var{arch} and @var{mach}.  Find the correct
 486         pointer to a structure and insert it into the <<arch_info>>
 487         pointer.
 488 */
 489
 490 boolean
 491 bfd_default_set_arch_mach (abfd, arch, mach)
 492      bfd *abfd;
 493      enum bfd_architecture arch;
 494      unsigned long mach;
 495 {
 496   const bfd_arch_info_type * const *app, *ap;
 497
 498   for (app = bfd_archures_list; *app != NULL; app++)
 499     {
 500       for (ap = *app; ap != NULL; ap = ap->next)
 501         {
 502           if (ap->arch == arch
 503               && (ap->mach == mach
 504                   || (mach == 0 && ap->the_default)))
 505             {
 506               abfd->arch_info = ap;
 507               return true;
 508             }
 509         }
 510     }
 511
 512   abfd->arch_info = &bfd_default_arch_struct;
 513   bfd_set_error (bfd_error_bad_value);
 514   return false;
 515 }
 516
 517
 518 /*
 519 FUNCTION
 520         bfd_get_arch
 521
 522 SYNOPSIS
 523         enum bfd_architecture bfd_get_arch(bfd *abfd);
 524
 525 DESCRIPTION
 526         Return the enumerated type which describes the BFD @var{abfd}'s
 527         architecture.
 528
 529 */
 530
 531 enum bfd_architecture
 532 bfd_get_arch (abfd)
 533      bfd *abfd;
 534 {
 535     return abfd->arch_info->arch;
 536 }
 537
 538 /*
 539 FUNCTION
 540         bfd_get_mach
 541
 542 SYNOPSIS
 543         unsigned long bfd_get_mach(bfd *abfd);
 544
 545 DESCRIPTION
 546         Return the long type which describes the BFD @var{abfd}'s
 547         machine.
 548 */
 549
 550 unsigned long
 551 bfd_get_mach (abfd)
 552      bfd *abfd;
 553 {
 554     return abfd->arch_info->mach;
 555 }
 556
 557 /*
 558 FUNCTION
 559         bfd_arch_bits_per_byte
 560
 561 SYNOPSIS
 562         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 563
 564 DESCRIPTION
 565         Return the number of bits in one of the BFD @var{abfd}'s
 566         architecture's bytes.
 567
 568 */
 569
 570 unsigned int
 571 bfd_arch_bits_per_byte (abfd)
 572      bfd *abfd;
 573 {
 574   return abfd->arch_info->bits_per_byte;
 575 }
 576
 577 /*
 578 FUNCTION
 579         bfd_arch_bits_per_address
 580
 581 SYNOPSIS
 582         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 583
 584 DESCRIPTION
 585         Return the number of bits in one of the BFD @var{abfd}'s
 586         architecture's addresses.
 587 */
 588
 589 unsigned int
 590 bfd_arch_bits_per_address (abfd)
 591      bfd *abfd;
 592 {
 593   return abfd->arch_info->bits_per_address;
 594 }
 595
 596
 597 /*
 598 INTERNAL_FUNCTION
 599         bfd_default_compatible
 600
 601 SYNOPSIS
 602         const bfd_arch_info_type *bfd_default_compatible
 603         (const bfd_arch_info_type *a,
 604         const bfd_arch_info_type *b);
 605
 606 DESCRIPTION
 607         The default function for testing for compatibility.
 608 */
 609
 610 const bfd_arch_info_type *
 611 bfd_default_compatible (a,b)
 612      const bfd_arch_info_type *a;
 613      const bfd_arch_info_type *b;
 614 {
 615   if (a->arch != b->arch)
 616     return NULL;
 617
 618   if (a->mach > b->mach)
 619     return a;
 620
 621   if (b->mach > a->mach)
 622     return b;
 623
 624   return a;
 625 }
 626
 627
 628 /*
 629 INTERNAL_FUNCTION
 630         bfd_default_scan
 631
 632 SYNOPSIS
 633         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 634
 635 DESCRIPTION
 636         The default function for working out whether this is an
 637         architecture hit and a machine hit.
 638 */
 639
 640 boolean
 641 bfd_default_scan (info, string)
 642      const struct bfd_arch_info *info;
 643      const char *string;
 644 {
 645   const char *ptr_src;
 646   const char *ptr_tst;
 647   unsigned long number;
 648   enum bfd_architecture arch;
 649   const char *printable_name_colon;
 650
 651   /* Exact match of the architecture name (ARCH_NAME) and also the
 652      default architecture? */
 653   if (strcasecmp (string, info->arch_name) == 0
 654       && info->the_default)
 655     return true;
 656
 657   /* Exact match of the machine name (PRINTABLE_NAME)? */
 658   if (strcasecmp (string, info->printable_name) == 0)
 659     return true;
 660
 661   /* Given that printable_name contains no colon, attempt to match:
 662      ARCH_NAME [ ":" ] PRINTABLE_NAME? */
 663   printable_name_colon = strchr (info->printable_name, ':');
 664   if (printable_name_colon == NULL)
 665     {
 666       int strlen_arch_name = strlen (info->arch_name);
 667       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 668         if (string[strlen_arch_name] == ':')
 669           {
 670             if (strcasecmp (string + strlen_arch_name + 1,
 671                             info->printable_name) == 0)
 672               return true;
 673           }
 674         else
 675           {
 676             if (strcasecmp (string + strlen_arch_name,
 677                             info->printable_name) == 0)
 678               return true;
 679           }
 680     }
 681
 682   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 683      Attempt to match: <arch> <mach>? */
 684   if (printable_name_colon != NULL)
 685     {
 686       int colon_index = printable_name_colon - info->printable_name;
 687       if (strncasecmp (string, info->printable_name, colon_index) == 0
 688           && strcasecmp (string + colon_index,
 689                          info->printable_name + colon_index + 1) == 0)
 690         return true;
 691     }
 692
 693   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 694      attempt to match just <mach>, it could be ambigious.  This test
 695      is left until later. */
 696
 697   /* NOTE: The below is retained for compatibility only. Please do not
 698      add to this code */
 699
 700   /* See how much of the supplied string matches with the
 701      architecture, eg the string m68k:68020 would match the 68k entry
 702      up to the :, then we get left with the machine number */
 703
 704   for (ptr_src = string, ptr_tst = info->arch_name;
 705        *ptr_src && *ptr_tst;
 706        ptr_src++, ptr_tst++)
 707     {
 708       if (*ptr_src != *ptr_tst) break;
 709     }
 710
 711   /* Chewed up as much of the architecture as will match, skip any
 712      colons */
 713   if (*ptr_src == ':')
 714     ptr_src++;
 715
 716   if (*ptr_src == 0)
 717     {
 718       /* nothing more, then only keep this one if it is the default
 719          machine for this architecture */
 720       return info->the_default;
 721     }
 722
 723   number = 0;
 724   while (isdigit(*ptr_src))
 725     {
 726       number = number * 10 + *ptr_src  - '0';
 727       ptr_src++;
 728     }
 729
 730   /* NOTE: The below is retained for compatibility only.
 731      PLEASE DO NOT ADD TO THIS CODE. */
 732
 733   switch (number)
 734     {
 735     case 68010:
 736     case 68020:
 737     case 68030:
 738     case 68040:
 739     case 68332:
 740     case 68050:
 741     case 68000:
 742       arch = bfd_arch_m68k;
 743       break;
 744
 745     case 32000:
 746       arch = bfd_arch_we32k;
 747       break;
 748
 749     case 3000:
 750       arch = bfd_arch_mips;
 751       number = bfd_mach_mips3000;
 752       break;
 753
 754     case 4000:
 755       arch = bfd_arch_mips;
 756       number = bfd_mach_mips4000;
 757       break;
 758
 759     case 6000:
 760       arch = bfd_arch_rs6000;
 761       break;
 762
 763     default:
 764       return false;
 765     }
 766
 767   if (arch != info->arch)
 768     return false;
 769
 770   if (number != info->mach)
 771     return false;
 772
 773   return true;
 774 }
 775
 776
 777 /*
 778 FUNCTION
 779         bfd_get_arch_info
 780
 781 SYNOPSIS
 782         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 783
 784 DESCRIPTION
 785         Return the architecture info struct in @var{abfd}.
 786 */
 787
 788 const bfd_arch_info_type *
 789 bfd_get_arch_info (abfd)
 790      bfd *abfd;
 791 {
 792   return abfd->arch_info;
 793 }
 794
 795
 796 /*
 797 FUNCTION
 798         bfd_lookup_arch
 799
 800 SYNOPSIS
 801         const bfd_arch_info_type *bfd_lookup_arch
 802                 (enum bfd_architecture
 803                 arch,
 804                 unsigned long machine);
 805
 806 DESCRIPTION
 807         Look for the architecure info structure which matches the
 808         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 809         machine/architecture structure which marks itself as the
 810         default.
 811 */
 812
 813 const bfd_arch_info_type *
 814 bfd_lookup_arch (arch, machine)
 815      enum bfd_architecture arch;
 816      unsigned long machine;
 817 {
 818   const bfd_arch_info_type * const *app, *ap;
 819
 820   for (app = bfd_archures_list; *app != NULL; app++)
 821     {
 822       for (ap = *app; ap != NULL; ap = ap->next)
 823         {
 824           if (ap->arch == arch
 825               && (ap->mach == machine
 826                   || (machine == 0 && ap->the_default)))
 827             return ap;
 828         }
 829     }
 830
 831   return NULL;
 832 }
 833
 834
 835 /*
 836 FUNCTION
 837         bfd_printable_arch_mach
 838
 839 SYNOPSIS
 840         const char *bfd_printable_arch_mach
 841                 (enum bfd_architecture arch, unsigned long machine);
 842
 843 DESCRIPTION
 844         Return a printable string representing the architecture and
 845         machine type.
 846
 847         This routine is depreciated.
 848 */
 849
 850 const char *
 851 bfd_printable_arch_mach (arch, machine)
 852      enum bfd_architecture arch;
 853      unsigned long machine;
 854 {
 855     const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
 856
 857     if (ap)
 858       return ap->printable_name;
 859     return "UNKNOWN!";
 860 }