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 .#define bfd_mach_m32r          0 {* backwards compatibility *}
 171 .#define bfd_mach_m32rx         'x'
 172 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 173 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 174 .  bfd_arch_last
 175 .  };
 176
 177
 178 */
 179
 180 /*
 181
 182 SUBSECTION
 183         bfd_arch_info
 184
 185 DESCRIPTION
 186         This structure contains information on architectures for use
 187         within BFD.
 188
 189 .
 190 .typedef struct bfd_arch_info
 191 .{
 192 .  int bits_per_word;
 193 .  int bits_per_address;
 194 .  int bits_per_byte;
 195 .  enum bfd_architecture arch;
 196 .  unsigned long mach;
 197 .  const char *arch_name;
 198 .  const char *printable_name;
 199 .  unsigned int section_align_power;
 200 . {* true if this is the default machine for the architecture *}
 201 .  boolean the_default;
 202 .  const struct bfd_arch_info * (*compatible)
 203 .       PARAMS ((const struct bfd_arch_info *a,
 204 .                const struct bfd_arch_info *b));
 205 .
 206 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 207 .
 208 .  const struct bfd_arch_info *next;
 209 .} bfd_arch_info_type;
 210 */
 211
 212 extern const bfd_arch_info_type bfd_a29k_arch;
 213 extern const bfd_arch_info_type bfd_alpha_arch;
 214 extern const bfd_arch_info_type bfd_arc_arch;
 215 extern const bfd_arch_info_type bfd_arm_arch;
 216 extern const bfd_arch_info_type bfd_d10v_arch;
 217 /* start-sanitize-d30v */
 218 extern const bfd_arch_info_type bfd_d30v_arch;
 219 /* end-sanitize-d30v */
 220 extern const bfd_arch_info_type bfd_h8300_arch;
 221 extern const bfd_arch_info_type bfd_h8500_arch;
 222 extern const bfd_arch_info_type bfd_hppa_arch;
 223 extern const bfd_arch_info_type bfd_i386_arch;
 224 extern const bfd_arch_info_type bfd_i860_arch;
 225 extern const bfd_arch_info_type bfd_i960_arch;
 226 extern const bfd_arch_info_type bfd_m32r_arch;
 227 extern const bfd_arch_info_type bfd_m68k_arch;
 228 extern const bfd_arch_info_type bfd_m88k_arch;
 229 extern const bfd_arch_info_type bfd_mips_arch;
 230 extern const bfd_arch_info_type bfd_mn10200_arch;
 231 extern const bfd_arch_info_type bfd_mn10300_arch;
 232 extern const bfd_arch_info_type bfd_powerpc_arch;
 233 extern const bfd_arch_info_type bfd_rs6000_arch;
 234 extern const bfd_arch_info_type bfd_sh_arch;
 235 extern const bfd_arch_info_type bfd_sparc_arch;
 236 /* start-sanitize-tic80 */
 237 extern const bfd_arch_info_type bfd_tic80_arch;
 238 /* end-sanitize-tic80 */
 239 extern const bfd_arch_info_type bfd_vax_arch;
 240 extern const bfd_arch_info_type bfd_we32k_arch;
 241 extern const bfd_arch_info_type bfd_z8k_arch;
 242 extern const bfd_arch_info_type bfd_ns32k_arch;
 243 extern const bfd_arch_info_type bfd_w65_arch;
 244 extern const bfd_arch_info_type bfd_v850_arch;
 245
 246 static const bfd_arch_info_type * const bfd_archures_list[] =
 247 {
 248 #ifdef SELECT_ARCHITECTURES
 249   SELECT_ARCHITECTURES,
 250 #else
 251   &bfd_a29k_arch,
 252   &bfd_alpha_arch,
 253   &bfd_arc_arch,
 254   &bfd_arm_arch,
 255   &bfd_d10v_arch,
 256 /* start-sanitize-d30v */
 257   &bfd_d30v_arch,
 258 /* end-sanitize-d30v */
 259   &bfd_h8300_arch,
 260   &bfd_h8500_arch,
 261   &bfd_hppa_arch,
 262   &bfd_i386_arch,
 263   &bfd_i860_arch,
 264   &bfd_i960_arch,
 265   &bfd_m32r_arch,
 266   &bfd_m68k_arch,
 267   &bfd_m88k_arch,
 268   &bfd_mips_arch,
 269   &bfd_mn10200_arch,
 270   &bfd_mn10300_arch,
 271   &bfd_powerpc_arch,
 272   &bfd_rs6000_arch,
 273   &bfd_sh_arch,
 274   &bfd_sparc_arch,
 275 /* start-sanitize-tic80 */
 276   &bfd_tic80_arch,
 277 /* end-sanitize-tic80 */
 278   &bfd_vax_arch,
 279   &bfd_we32k_arch,
 280   &bfd_z8k_arch,
 281   &bfd_ns32k_arch,
 282   &bfd_w65_arch,
 283   &bfd_v850_arch,
 284 #endif
 285   0
 286 };
 287
 288 /*
 289 FUNCTION
 290         bfd_printable_name
 291
 292 SYNOPSIS
 293         const char *bfd_printable_name(bfd *abfd);
 294
 295 DESCRIPTION
 296         Return a printable string representing the architecture and machine
 297         from the pointer to the architecture info structure.
 298
 299 */
 300
 301 const char *
 302 bfd_printable_name (abfd)
 303      bfd *abfd;
 304 {
 305   return abfd->arch_info->printable_name;
 306 }
 307
 308
 309
 310 /*
 311 FUNCTION
 312         bfd_scan_arch
 313
 314 SYNOPSIS
 315         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 316
 317 DESCRIPTION
 318         Figure out if BFD supports any cpu which could be described with
 319         the name @var{string}.  Return a pointer to an <<arch_info>>
 320         structure if a machine is found, otherwise NULL.
 321
 322 */
 323
 324 const bfd_arch_info_type *
 325 bfd_scan_arch (string)
 326      const char *string;
 327 {
 328   const bfd_arch_info_type * const *app, *ap;
 329
 330   /* Look through all the installed architectures */
 331   for (app = bfd_archures_list; *app != NULL; app++)
 332     {
 333       for (ap = *app; ap != NULL; ap = ap->next)
 334         {
 335           if (ap->scan (ap, string))
 336             return ap;
 337         }
 338     }
 339
 340   return NULL;
 341 }
 342
 343
 344
 345 /*
 346 FUNCTION
 347         bfd_arch_list
 348
 349 SYNOPSIS
 350         const char **bfd_arch_list(void);
 351
 352 DESCRIPTION
 353         Return a freshly malloced NULL-terminated vector of the names
 354         of all the valid BFD architectures.  Do not modify the names.
 355
 356 */
 357
 358 const char **
 359 bfd_arch_list ()
 360 {
 361   int vec_length = 0;
 362   const char **name_ptr;
 363   const char **name_list;
 364   const bfd_arch_info_type * const *app;
 365
 366   /* Determine the number of architectures */
 367   vec_length = 0;
 368   for (app = bfd_archures_list; *app != NULL; app++)
 369     {
 370       const bfd_arch_info_type *ap;
 371       for (ap = *app; ap != NULL; ap = ap->next)
 372         {
 373           vec_length++;
 374         }
 375     }
 376
 377   name_list = (CONST char **)
 378     bfd_malloc ((vec_length + 1) * sizeof (char **));
 379   if (name_list == NULL)
 380     return NULL;
 381
 382   /* Point the list at each of the names */
 383   name_ptr = name_list;
 384   for (app = bfd_archures_list; *app != NULL; app++)
 385     {
 386       const bfd_arch_info_type *ap;
 387       for (ap = *app; ap != NULL; ap = ap->next)
 388         {
 389           *name_ptr = ap->printable_name;
 390           name_ptr++;
 391         }
 392     }
 393   *name_ptr = NULL;
 394
 395   return name_list;
 396 }
 397
 398
 399
 400 /*
 401 FUNCTION
 402         bfd_arch_get_compatible
 403
 404 SYNOPSIS
 405         const bfd_arch_info_type *bfd_arch_get_compatible(
 406                 const bfd *abfd,
 407                 const bfd *bbfd);
 408
 409 DESCRIPTION
 410         Determine whether two BFDs'
 411         architectures and machine types are compatible.  Calculates
 412         the lowest common denominator between the two architectures
 413         and machine types implied by the BFDs and returns a pointer to
 414         an <<arch_info>> structure describing the compatible machine.
 415 */
 416
 417 const bfd_arch_info_type *
 418 bfd_arch_get_compatible (abfd, bbfd)
 419      const bfd *abfd;
 420      const bfd *bbfd;
 421 {
 422   /* If either architecture is unknown, then all we can do is assume
 423      the user knows what he's doing.  */
 424   if (abfd->arch_info->arch == bfd_arch_unknown)
 425         return bbfd->arch_info;
 426   if (bbfd->arch_info->arch == bfd_arch_unknown)
 427         return abfd->arch_info;
 428
 429   /* Otherwise architecture-specific code has to decide.  */
 430   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 431 }
 432
 433
 434 /*
 435 INTERNAL_DEFINITION
 436         bfd_default_arch_struct
 437
 438 DESCRIPTION
 439         The <<bfd_default_arch_struct>> is an item of
 440         <<bfd_arch_info_type>> which has been initialized to a fairly
 441         generic state.  A BFD starts life by pointing to this
 442         structure, until the correct back end has determined the real
 443         architecture of the file.
 444
 445 .extern const bfd_arch_info_type bfd_default_arch_struct;
 446
 447 */
 448
 449 const bfd_arch_info_type bfd_default_arch_struct =
 450 {
 451     32,32,8,bfd_arch_unknown,0,"unknown","unknown",2,true,
 452     bfd_default_compatible,
 453     bfd_default_scan,
 454     0,
 455 };
 456
 457 /*
 458 FUNCTION
 459         bfd_set_arch_info
 460
 461 SYNOPSIS
 462         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 463
 464 DESCRIPTION
 465         Set the architecture info of @var{abfd} to @var{arg}.
 466 */
 467
 468 void
 469 bfd_set_arch_info (abfd, arg)
 470      bfd *abfd;
 471      const bfd_arch_info_type *arg;
 472 {
 473   abfd->arch_info = arg;
 474 }
 475
 476 /*
 477 INTERNAL_FUNCTION
 478         bfd_default_set_arch_mach
 479
 480 SYNOPSIS
 481         boolean bfd_default_set_arch_mach(bfd *abfd,
 482                 enum bfd_architecture arch,
 483                 unsigned long mach);
 484
 485 DESCRIPTION
 486         Set the architecture and machine type in BFD @var{abfd}
 487         to @var{arch} and @var{mach}.  Find the correct
 488         pointer to a structure and insert it into the <<arch_info>>
 489         pointer.
 490 */
 491
 492 boolean
 493 bfd_default_set_arch_mach (abfd, arch, mach)
 494      bfd *abfd;
 495      enum bfd_architecture arch;
 496      unsigned long mach;
 497 {
 498   const bfd_arch_info_type * const *app, *ap;
 499
 500   for (app = bfd_archures_list; *app != NULL; app++)
 501     {
 502       for (ap = *app; ap != NULL; ap = ap->next)
 503         {
 504           if (ap->arch == arch
 505               && (ap->mach == mach
 506                   || (mach == 0 && ap->the_default)))
 507             {
 508               abfd->arch_info = ap;
 509               return true;
 510             }
 511         }
 512     }
 513
 514   abfd->arch_info = &bfd_default_arch_struct;
 515   bfd_set_error (bfd_error_bad_value);
 516   return false;
 517 }
 518
 519
 520 /*
 521 FUNCTION
 522         bfd_get_arch
 523
 524 SYNOPSIS
 525         enum bfd_architecture bfd_get_arch(bfd *abfd);
 526
 527 DESCRIPTION
 528         Return the enumerated type which describes the BFD @var{abfd}'s
 529         architecture.
 530
 531 */
 532
 533 enum bfd_architecture
 534 bfd_get_arch (abfd)
 535      bfd *abfd;
 536 {
 537     return abfd->arch_info->arch;
 538 }
 539
 540 /*
 541 FUNCTION
 542         bfd_get_mach
 543
 544 SYNOPSIS
 545         unsigned long bfd_get_mach(bfd *abfd);
 546
 547 DESCRIPTION
 548         Return the long type which describes the BFD @var{abfd}'s
 549         machine.
 550 */
 551
 552 unsigned long
 553 bfd_get_mach (abfd)
 554      bfd *abfd;
 555 {
 556     return abfd->arch_info->mach;
 557 }
 558
 559 /*
 560 FUNCTION
 561         bfd_arch_bits_per_byte
 562
 563 SYNOPSIS
 564         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 565
 566 DESCRIPTION
 567         Return the number of bits in one of the BFD @var{abfd}'s
 568         architecture's bytes.
 569
 570 */
 571
 572 unsigned int
 573 bfd_arch_bits_per_byte (abfd)
 574      bfd *abfd;
 575 {
 576   return abfd->arch_info->bits_per_byte;
 577 }
 578
 579 /*
 580 FUNCTION
 581         bfd_arch_bits_per_address
 582
 583 SYNOPSIS
 584         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 585
 586 DESCRIPTION
 587         Return the number of bits in one of the BFD @var{abfd}'s
 588         architecture's addresses.
 589 */
 590
 591 unsigned int
 592 bfd_arch_bits_per_address (abfd)
 593      bfd *abfd;
 594 {
 595   return abfd->arch_info->bits_per_address;
 596 }
 597
 598
 599 /*
 600 INTERNAL_FUNCTION
 601         bfd_default_compatible
 602
 603 SYNOPSIS
 604         const bfd_arch_info_type *bfd_default_compatible
 605         (const bfd_arch_info_type *a,
 606         const bfd_arch_info_type *b);
 607
 608 DESCRIPTION
 609         The default function for testing for compatibility.
 610 */
 611
 612 const bfd_arch_info_type *
 613 bfd_default_compatible (a,b)
 614      const bfd_arch_info_type *a;
 615      const bfd_arch_info_type *b;
 616 {
 617   if (a->arch != b->arch)
 618     return NULL;
 619
 620   if (a->mach > b->mach)
 621     return a;
 622
 623   if (b->mach > a->mach)
 624     return b;
 625
 626   return a;
 627 }
 628
 629
 630 /*
 631 INTERNAL_FUNCTION
 632         bfd_default_scan
 633
 634 SYNOPSIS
 635         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 636
 637 DESCRIPTION
 638         The default function for working out whether this is an
 639         architecture hit and a machine hit.
 640 */
 641
 642 boolean
 643 bfd_default_scan (info, string)
 644      const struct bfd_arch_info *info;
 645      const char *string;
 646 {
 647   const char *ptr_src;
 648   const char *ptr_tst;
 649   unsigned long number;
 650   enum bfd_architecture arch;
 651   const char *printable_name_colon;
 652
 653   /* Exact match of the architecture name (ARCH_NAME) and also the
 654      default architecture? */
 655   if (strcasecmp (string, info->arch_name) == 0
 656       && info->the_default)
 657     return true;
 658
 659   /* Exact match of the machine name (PRINTABLE_NAME)? */
 660   if (strcasecmp (string, info->printable_name) == 0)
 661     return true;
 662
 663   /* Given that printable_name contains no colon, attempt to match:
 664      ARCH_NAME [ ":" ] PRINTABLE_NAME? */
 665   printable_name_colon = strchr (info->printable_name, ':');
 666   if (printable_name_colon == NULL)
 667     {
 668       int strlen_arch_name = strlen (info->arch_name);
 669       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 670         if (string[strlen_arch_name] == ':')
 671           {
 672             if (strcasecmp (string + strlen_arch_name + 1,
 673                             info->printable_name) == 0)
 674               return true;
 675           }
 676         else
 677           {
 678             if (strcasecmp (string + strlen_arch_name,
 679                             info->printable_name) == 0)
 680               return true;
 681           }
 682     }
 683
 684   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 685      Attempt to match: <arch> <mach>? */
 686   if (printable_name_colon != NULL)
 687     {
 688       int colon_index = printable_name_colon - info->printable_name;
 689       if (strncasecmp (string, info->printable_name, colon_index) == 0
 690           && strcasecmp (string + colon_index,
 691                          info->printable_name + colon_index + 1) == 0)
 692         return true;
 693     }
 694
 695   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 696      attempt to match just <mach>, it could be ambigious.  This test
 697      is left until later. */
 698
 699   /* NOTE: The below is retained for compatibility only. Please do not
 700      add to this code */
 701
 702   /* See how much of the supplied string matches with the
 703      architecture, eg the string m68k:68020 would match the 68k entry
 704      up to the :, then we get left with the machine number */
 705
 706   for (ptr_src = string, ptr_tst = info->arch_name;
 707        *ptr_src && *ptr_tst;
 708        ptr_src++, ptr_tst++)
 709     {
 710       if (*ptr_src != *ptr_tst) break;
 711     }
 712
 713   /* Chewed up as much of the architecture as will match, skip any
 714      colons */
 715   if (*ptr_src == ':')
 716     ptr_src++;
 717
 718   if (*ptr_src == 0)
 719     {
 720       /* nothing more, then only keep this one if it is the default
 721          machine for this architecture */
 722       return info->the_default;
 723     }
 724
 725   number = 0;
 726   while (isdigit(*ptr_src))
 727     {
 728       number = number * 10 + *ptr_src  - '0';
 729       ptr_src++;
 730     }
 731
 732   /* NOTE: The below is retained for compatibility only.
 733      PLEASE DO NOT ADD TO THIS CODE. */
 734
 735   switch (number)
 736     {
 737     case 68010:
 738     case 68020:
 739     case 68030:
 740     case 68040:
 741     case 68332:
 742     case 68050:
 743     case 68000:
 744       arch = bfd_arch_m68k;
 745       break;
 746
 747     case 32000:
 748       arch = bfd_arch_we32k;
 749       break;
 750
 751     case 3000:
 752       arch = bfd_arch_mips;
 753       number = bfd_mach_mips3000;
 754       break;
 755
 756     case 4000:
 757       arch = bfd_arch_mips;
 758       number = bfd_mach_mips4000;
 759       break;
 760
 761     case 6000:
 762       arch = bfd_arch_rs6000;
 763       break;
 764
 765     default:
 766       return false;
 767     }
 768
 769   if (arch != info->arch)
 770     return false;
 771
 772   if (number != info->mach)
 773     return false;
 774
 775   return true;
 776 }
 777
 778
 779 /*
 780 FUNCTION
 781         bfd_get_arch_info
 782
 783 SYNOPSIS
 784         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 785
 786 DESCRIPTION
 787         Return the architecture info struct in @var{abfd}.
 788 */
 789
 790 const bfd_arch_info_type *
 791 bfd_get_arch_info (abfd)
 792      bfd *abfd;
 793 {
 794   return abfd->arch_info;
 795 }
 796
 797
 798 /*
 799 FUNCTION
 800         bfd_lookup_arch
 801
 802 SYNOPSIS
 803         const bfd_arch_info_type *bfd_lookup_arch
 804                 (enum bfd_architecture
 805                 arch,
 806                 unsigned long machine);
 807
 808 DESCRIPTION
 809         Look for the architecure info structure which matches the
 810         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 811         machine/architecture structure which marks itself as the
 812         default.
 813 */
 814
 815 const bfd_arch_info_type *
 816 bfd_lookup_arch (arch, machine)
 817      enum bfd_architecture arch;
 818      unsigned long machine;
 819 {
 820   const bfd_arch_info_type * const *app, *ap;
 821
 822   for (app = bfd_archures_list; *app != NULL; app++)
 823     {
 824       for (ap = *app; ap != NULL; ap = ap->next)
 825         {
 826           if (ap->arch == arch
 827               && (ap->mach == machine
 828                   || (machine == 0 && ap->the_default)))
 829             return ap;
 830         }
 831     }
 832
 833   return NULL;
 834 }
 835
 836
 837 /*
 838 FUNCTION
 839         bfd_printable_arch_mach
 840
 841 SYNOPSIS
 842         const char *bfd_printable_arch_mach
 843                 (enum bfd_architecture arch, unsigned long machine);
 844
 845 DESCRIPTION
 846         Return a printable string representing the architecture and
 847         machine type.
 848
 849         This routine is depreciated.
 850 */
 851
 852 const char *
 853 bfd_printable_arch_mach (arch, machine)
 854      enum bfd_architecture arch;
 855      unsigned long machine;
 856 {
 857     const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
 858
 859     if (ap)
 860       return ap->printable_name;
 861     return "UNKNOWN!";
 862 }