bfd/archures.c

   1 /* BFD library support routines for architectures.
   2    Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999, 2000
   3    Free Software Foundation, Inc.
   4    Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
   5
   6 This file is part of BFD, the Binary File Descriptor library.
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #include "bfd.h"
  23 #include "sysdep.h"
  24 #include "libbfd.h"
  25 #include <ctype.h>
  26
  27 /*
  28
  29 SECTION
  30         Architectures
  31
  32         BFD keeps one atom in a BFD describing the
  33         architecture of the data attached to the BFD: a pointer to a
  34         <<bfd_arch_info_type>>.
  35
  36         Pointers to structures can be requested independently of a BFD
  37         so that an architecture's information can be interrogated
  38         without access to an open BFD.
  39
  40         The architecture information is provided by each architecture package.
  41         The set of default architectures is selected by the macro
  42         <<SELECT_ARCHITECTURES>>.  This is normally set up in the
  43         @file{config/@var{target}.mt} file of your choice.  If the name is not
  44         defined, then all the architectures supported are included.
  45
  46         When BFD starts up, all the architectures are called with an
  47         initialize method.  It is up to the architecture back end to
  48         insert as many items into the list of architectures as it wants to;
  49         generally this would be one for each machine and one for the
  50         default case (an item with a machine field of 0).
  51
  52         BFD's idea of an architecture is implemented in @file{archures.c}.
  53 */
  54
  55 /*
  56
  57 SUBSECTION
  58         bfd_architecture
  59
  60 DESCRIPTION
  61         This enum gives the object file's CPU architecture, in a
  62         global sense---i.e., what processor family does it belong to?
  63         Another field indicates which processor within
  64         the family is in use.  The machine gives a number which
  65         distinguishes different versions of the architecture,
  66         containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
  67         and 68020 and 68030 for Motorola 68020 and 68030.
  68
  69 .enum bfd_architecture
  70 .{
  71 .  bfd_arch_unknown,   {* File arch not known *}
  72 .  bfd_arch_obscure,   {* Arch known, not one of these *}
  73 .  bfd_arch_m68k,      {* Motorola 68xxx *}
  74 .#define bfd_mach_m68000 1
  75 .#define bfd_mach_m68008 2
  76 .#define bfd_mach_m68010 3
  77 .#define bfd_mach_m68020 4
  78 .#define bfd_mach_m68030 5
  79 .#define bfd_mach_m68040 6
  80 .#define bfd_mach_m68060 7
  81 .#define bfd_mach_cpu32  8
  82 .  bfd_arch_vax,       {* DEC Vax *}
  83 .  bfd_arch_i960,      {* Intel 960 *}
  84 .    {* The order of the following is important.
  85 .       lower number indicates a machine type that
  86 .       only accepts a subset of the instructions
  87 .       available to machines with higher numbers.
  88 .       The exception is the "ca", which is
  89 .       incompatible with all other machines except
  90 .       "core". *}
  91 .
  92 .#define bfd_mach_i960_core      1
  93 .#define bfd_mach_i960_ka_sa     2
  94 .#define bfd_mach_i960_kb_sb     3
  95 .#define bfd_mach_i960_mc        4
  96 .#define bfd_mach_i960_xa        5
  97 .#define bfd_mach_i960_ca        6
  98 .#define bfd_mach_i960_jx        7
  99 .#define bfd_mach_i960_hx        8
 100 .
 101 .  bfd_arch_a29k,      {* AMD 29000 *}
 102 .  bfd_arch_sparc,     {* SPARC *}
 103 .#define bfd_mach_sparc                 1
 104 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env.  *}
 105 .#define bfd_mach_sparc_sparclet        2
 106 .#define bfd_mach_sparc_sparclite       3
 107 .#define bfd_mach_sparc_v8plus          4
 108 .#define bfd_mach_sparc_v8plusa         5 {* with ultrasparc add'ns *}
 109 .#define bfd_mach_sparc_sparclite_le    6
 110 .#define bfd_mach_sparc_v9              7
 111 .#define bfd_mach_sparc_v9a             8 {* with ultrasparc add'ns *}
 112 .#define bfd_mach_sparc_v8plusb         9 {* with cheetah add'ns *}
 113 .#define bfd_mach_sparc_v9b             10 {* with cheetah add'ns *}
 114 .{* Nonzero if MACH has the v9 instruction set.  *}
 115 .#define bfd_mach_sparc_v9_p(mach) \
 116 .  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
 117 .   && (mach) != bfd_mach_sparc_sparclite_le)
 118 .  bfd_arch_mips,      {* MIPS Rxxxx *}
 119 .#define bfd_mach_mips3000              3000
 120 .#define bfd_mach_mips3900              3900
 121 .#define bfd_mach_mips4000              4000
 122 .#define bfd_mach_mips4010              4010
 123 .#define bfd_mach_mips4100              4100
 124 .#define bfd_mach_mips4111              4111
 125 .#define bfd_mach_mips4300              4300
 126 .#define bfd_mach_mips4400              4400
 127 .#define bfd_mach_mips4600              4600
 128 .#define bfd_mach_mips4650              4650
 129 .#define bfd_mach_mips5000              5000
 130 .#define bfd_mach_mips6000              6000
 131 .#define bfd_mach_mips8000              8000
 132 .#define bfd_mach_mips10000             10000
 133 .#define bfd_mach_mips16                16
 134 .#define bfd_mach_mips32                32
 135 .#define bfd_mach_mips32_4k             3204113 {* 32, 04, octal 'K' *}
 136 .  bfd_arch_i386,      {* Intel 386 *}
 137 .#define bfd_mach_i386_i386 0
 138 .#define bfd_mach_i386_i8086 1
 139 .#define bfd_mach_i386_i386_intel_syntax 2
 140 .#define bfd_mach_x86_64 3
 141 .#define bfd_mach_x86_64_intel_syntax 4
 142 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 143 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 144 .  bfd_arch_i860,      {* Intel 860 *}
 145 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 146 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 147 .  bfd_arch_alliant,   {* Alliant *}
 148 .  bfd_arch_convex,    {* Convex *}
 149 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 150 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 151 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 152 .#define bfd_mach_h8300   1
 153 .#define bfd_mach_h8300h  2
 154 .#define bfd_mach_h8300s  3
 155 .  bfd_arch_powerpc,   {* PowerPC *}
 156 .#define bfd_mach_ppc           0
 157 .#define bfd_mach_ppc_403       403
 158 .#define bfd_mach_ppc_403gc     4030
 159 .#define bfd_mach_ppc_505       505
 160 .#define bfd_mach_ppc_601       601
 161 .#define bfd_mach_ppc_602       602
 162 .#define bfd_mach_ppc_603       603
 163 .#define bfd_mach_ppc_ec603e    6031
 164 .#define bfd_mach_ppc_604       604
 165 .#define bfd_mach_ppc_620       620
 166 .#define bfd_mach_ppc_630       630
 167 .#define bfd_mach_ppc_750       750
 168 .#define bfd_mach_ppc_860       860
 169 .#define bfd_mach_ppc_a35       35
 170 .#define bfd_mach_ppc_rs64ii    642
 171 .#define bfd_mach_ppc_rs64iii   643
 172 .#define bfd_mach_ppc_7400      7400
 173 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 174 .#define bfd_mach_rs6k          0
 175 .#define bfd_mach_rs6k_rs1      6001
 176 .#define bfd_mach_rs6k_rsc      6003
 177 .#define bfd_mach_rs6k_rs2      6002
 178 .  bfd_arch_hppa,      {* HP PA RISC *}
 179 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 180 .#define bfd_mach_d10v          0
 181 .#define bfd_mach_d10v_ts2      2
 182 .#define bfd_mach_d10v_ts3      3
 183 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 184 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 185 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 186 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 187 .#define bfd_mach_z8001         1
 188 .#define bfd_mach_z8002         2
 189 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 190 .  bfd_arch_sh,        {* Hitachi SH *}
 191 .#define bfd_mach_sh            0
 192 .#define bfd_mach_sh2        0x20
 193 .#define bfd_mach_sh_dsp     0x2d
 194 .#define bfd_mach_sh3        0x30
 195 .#define bfd_mach_sh3_dsp    0x3d
 196 .#define bfd_mach_sh3e       0x3e
 197 .#define bfd_mach_sh4        0x40
 198 .  bfd_arch_alpha,     {* Dec Alpha *}
 199 .#define bfd_mach_alpha_ev4  0x10
 200 .#define bfd_mach_alpha_ev5  0x20
 201 .#define bfd_mach_alpha_ev6  0x30
 202 .  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
 203 .#define bfd_mach_arm_2         1
 204 .#define bfd_mach_arm_2a        2
 205 .#define bfd_mach_arm_3         3
 206 .#define bfd_mach_arm_3M        4
 207 .#define bfd_mach_arm_4         5
 208 .#define bfd_mach_arm_4T        6
 209 .#define bfd_mach_arm_5         7
 210 .#define bfd_mach_arm_5T        8
 211 .#define bfd_mach_arm_5TE       9
 212 .#define bfd_mach_arm_XScale    10
 213 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 214 .  bfd_arch_w65,       {* WDC 65816 *}
 215 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 216 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 217 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 218 .  bfd_arch_v850,      {* NEC V850 *}
 219 .#define bfd_mach_v850          0
 220 .#define bfd_mach_v850e         'E'
 221 .#define bfd_mach_v850ea        'A'
 222 .  bfd_arch_arc,       {* Argonaut RISC Core *}
 223 .#define bfd_mach_arc_base 0
 224 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 225 .#define bfd_mach_m32r          0 {* backwards compatibility *}
 226 .#define bfd_mach_m32rx         'x'
 227 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 228 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 229 .#define bfd_mach_mn10300               300
 230 .#define bfd_mach_am33          330
 231 .  bfd_arch_fr30,
 232 .#define bfd_mach_fr30          0x46523330
 233 .  bfd_arch_mcore,
 234 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 235 .#define bfd_mach_ia64_elf64    0
 236 .#define bfd_mach_ia64_elf32    1
 237 .  bfd_arch_pj,
 238 .  bfd_arch_avr,       {* Atmel AVR microcontrollers *}
 239 .#define bfd_mach_avr1          1
 240 .#define bfd_mach_avr2          2
 241 .#define bfd_mach_avr3          3
 242 .#define bfd_mach_avr4          4
 243 .#define bfd_mach_avr5          5
 244 .  bfd_arch_cris,      {* Axis CRIS *}
 245 .  bfd_arch_last
 246 .  };
 247 */
 248
 249 /*
 250 SUBSECTION
 251         bfd_arch_info
 252
 253 DESCRIPTION
 254         This structure contains information on architectures for use
 255         within BFD.
 256
 257 .
 258 .typedef struct bfd_arch_info
 259 .{
 260 .  int bits_per_word;
 261 .  int bits_per_address;
 262 .  int bits_per_byte;
 263 .  enum bfd_architecture arch;
 264 .  unsigned long mach;
 265 .  const char *arch_name;
 266 .  const char *printable_name;
 267 .  unsigned int section_align_power;
 268 .  {* True if this is the default machine for the architecture.  *}
 269 .  boolean the_default;
 270 .  const struct bfd_arch_info * (*compatible)
 271 .       PARAMS ((const struct bfd_arch_info *a,
 272 .                const struct bfd_arch_info *b));
 273 .
 274 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 275 .
 276 .  const struct bfd_arch_info *next;
 277 .} bfd_arch_info_type;
 278 */
 279
 280 extern const bfd_arch_info_type bfd_a29k_arch;
 281 extern const bfd_arch_info_type bfd_alpha_arch;
 282 extern const bfd_arch_info_type bfd_arc_arch;
 283 extern const bfd_arch_info_type bfd_arm_arch;
 284 extern const bfd_arch_info_type bfd_cris_arch;
 285 extern const bfd_arch_info_type bfd_d10v_arch;
 286 extern const bfd_arch_info_type bfd_d30v_arch;
 287 extern const bfd_arch_info_type bfd_h8300_arch;
 288 extern const bfd_arch_info_type bfd_h8500_arch;
 289 extern const bfd_arch_info_type bfd_hppa_arch;
 290 extern const bfd_arch_info_type bfd_i370_arch;
 291 extern const bfd_arch_info_type bfd_i386_arch;
 292 extern const bfd_arch_info_type bfd_i860_arch;
 293 extern const bfd_arch_info_type bfd_i960_arch;
 294 extern const bfd_arch_info_type bfd_m32r_arch;
 295 extern const bfd_arch_info_type bfd_m68hc11_arch;
 296 extern const bfd_arch_info_type bfd_m68hc12_arch;
 297 extern const bfd_arch_info_type bfd_m68k_arch;
 298 extern const bfd_arch_info_type bfd_m88k_arch;
 299 extern const bfd_arch_info_type bfd_mips_arch;
 300 extern const bfd_arch_info_type bfd_mn10200_arch;
 301 extern const bfd_arch_info_type bfd_mn10300_arch;
 302 extern const bfd_arch_info_type bfd_powerpc_arch;
 303 extern const bfd_arch_info_type bfd_rs6000_arch;
 304 extern const bfd_arch_info_type bfd_pj_arch;
 305 extern const bfd_arch_info_type bfd_sh_arch;
 306 extern const bfd_arch_info_type bfd_sparc_arch;
 307 extern const bfd_arch_info_type bfd_tic30_arch;
 308 extern const bfd_arch_info_type bfd_tic54x_arch;
 309 extern const bfd_arch_info_type bfd_tic80_arch;
 310 extern const bfd_arch_info_type bfd_vax_arch;
 311 extern const bfd_arch_info_type bfd_we32k_arch;
 312 extern const bfd_arch_info_type bfd_z8k_arch;
 313 extern const bfd_arch_info_type bfd_ns32k_arch;
 314 extern const bfd_arch_info_type bfd_w65_arch;
 315 extern const bfd_arch_info_type bfd_v850_arch;
 316 extern const bfd_arch_info_type bfd_fr30_arch;
 317 extern const bfd_arch_info_type bfd_mcore_arch;
 318 extern const bfd_arch_info_type bfd_avr_arch;
 319 extern const bfd_arch_info_type bfd_ia64_arch;
 320
 321 static const bfd_arch_info_type * const bfd_archures_list[] = {
 322 #ifdef SELECT_ARCHITECTURES
 323   SELECT_ARCHITECTURES,
 324 #else
 325   &bfd_a29k_arch,
 326   &bfd_alpha_arch,
 327   &bfd_arc_arch,
 328   &bfd_arm_arch,
 329   &bfd_cris_arch,
 330   &bfd_d10v_arch,
 331   &bfd_d30v_arch,
 332   &bfd_h8300_arch,
 333   &bfd_h8500_arch,
 334   &bfd_hppa_arch,
 335   &bfd_i370_arch,
 336   &bfd_i386_arch,
 337   &bfd_i860_arch,
 338   &bfd_i960_arch,
 339   &bfd_m32r_arch,
 340   &bfd_m68hc11_arch,
 341   &bfd_m68hc12_arch,
 342   &bfd_m68k_arch,
 343   &bfd_m88k_arch,
 344   &bfd_mips_arch,
 345   &bfd_mn10200_arch,
 346   &bfd_mn10300_arch,
 347   &bfd_powerpc_arch,
 348   &bfd_rs6000_arch,
 349   &bfd_sh_arch,
 350   &bfd_sparc_arch,
 351   &bfd_tic30_arch,
 352   &bfd_tic54x_arch,
 353   &bfd_tic80_arch,
 354   &bfd_vax_arch,
 355   &bfd_we32k_arch,
 356   &bfd_z8k_arch,
 357   &bfd_ns32k_arch,
 358   &bfd_w65_arch,
 359   &bfd_v850_arch,
 360   &bfd_fr30_arch,
 361   &bfd_mcore_arch,
 362   &bfd_avr_arch,
 363   &bfd_ia64_arch,
 364 #endif
 365   0
 366 };
 367
 368 /*
 369 FUNCTION
 370         bfd_printable_name
 371
 372 SYNOPSIS
 373         const char *bfd_printable_name(bfd *abfd);
 374
 375 DESCRIPTION
 376         Return a printable string representing the architecture and machine
 377         from the pointer to the architecture info structure.
 378
 379 */
 380
 381 const char *
 382 bfd_printable_name (abfd)
 383      bfd *abfd;
 384 {
 385   return abfd->arch_info->printable_name;
 386 }
 387
 388 /*
 389 FUNCTION
 390         bfd_scan_arch
 391
 392 SYNOPSIS
 393         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 394
 395 DESCRIPTION
 396         Figure out if BFD supports any cpu which could be described with
 397         the name @var{string}.  Return a pointer to an <<arch_info>>
 398         structure if a machine is found, otherwise NULL.
 399 */
 400
 401 const bfd_arch_info_type *
 402 bfd_scan_arch (string)
 403      const char *string;
 404 {
 405   const bfd_arch_info_type * const *app, *ap;
 406
 407   /* Look through all the installed architectures.  */
 408   for (app = bfd_archures_list; *app != NULL; app++)
 409     {
 410       for (ap = *app; ap != NULL; ap = ap->next)
 411         {
 412           if (ap->scan (ap, string))
 413             return ap;
 414         }
 415     }
 416
 417   return NULL;
 418 }
 419
 420 /*
 421 FUNCTION
 422         bfd_arch_list
 423
 424 SYNOPSIS
 425         const char **bfd_arch_list(void);
 426
 427 DESCRIPTION
 428         Return a freshly malloced NULL-terminated vector of the names
 429         of all the valid BFD architectures.  Do not modify the names.
 430 */
 431
 432 const char **
 433 bfd_arch_list ()
 434 {
 435   int vec_length = 0;
 436   const char **name_ptr;
 437   const char **name_list;
 438   const bfd_arch_info_type * const *app;
 439
 440   /* Determine the number of architectures.  */
 441   vec_length = 0;
 442   for (app = bfd_archures_list; *app != NULL; app++)
 443     {
 444       const bfd_arch_info_type *ap;
 445       for (ap = *app; ap != NULL; ap = ap->next)
 446         {
 447           vec_length++;
 448         }
 449     }
 450
 451   name_list = (const char **)
 452     bfd_malloc ((vec_length + 1) * sizeof (char **));
 453   if (name_list == NULL)
 454     return NULL;
 455
 456   /* Point the list at each of the names.  */
 457   name_ptr = name_list;
 458   for (app = bfd_archures_list; *app != NULL; app++)
 459     {
 460       const bfd_arch_info_type *ap;
 461       for (ap = *app; ap != NULL; ap = ap->next)
 462         {
 463           *name_ptr = ap->printable_name;
 464           name_ptr++;
 465         }
 466     }
 467   *name_ptr = NULL;
 468
 469   return name_list;
 470 }
 471
 472 /*
 473 FUNCTION
 474         bfd_arch_get_compatible
 475
 476 SYNOPSIS
 477         const bfd_arch_info_type *bfd_arch_get_compatible(
 478                 const bfd *abfd,
 479                 const bfd *bbfd);
 480
 481 DESCRIPTION
 482         Determine whether two BFDs'
 483         architectures and machine types are compatible.  Calculates
 484         the lowest common denominator between the two architectures
 485         and machine types implied by the BFDs and returns a pointer to
 486         an <<arch_info>> structure describing the compatible machine.
 487 */
 488
 489 const bfd_arch_info_type *
 490 bfd_arch_get_compatible (abfd, bbfd)
 491      const bfd *abfd;
 492      const bfd *bbfd;
 493 {
 494   /* If either architecture is unknown, then all we can do is assume
 495      the user knows what he's doing.  */
 496   if (abfd->arch_info->arch == bfd_arch_unknown)
 497     return bbfd->arch_info;
 498   if (bbfd->arch_info->arch == bfd_arch_unknown)
 499     return abfd->arch_info;
 500
 501   /* Otherwise architecture-specific code has to decide.  */
 502   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 503 }
 504
 505 /*
 506 INTERNAL_DEFINITION
 507         bfd_default_arch_struct
 508
 509 DESCRIPTION
 510         The <<bfd_default_arch_struct>> is an item of
 511         <<bfd_arch_info_type>> which has been initialized to a fairly
 512         generic state.  A BFD starts life by pointing to this
 513         structure, until the correct back end has determined the real
 514         architecture of the file.
 515
 516 .extern const bfd_arch_info_type bfd_default_arch_struct;
 517 */
 518
 519 const bfd_arch_info_type bfd_default_arch_struct = {
 520   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 521   bfd_default_compatible,
 522   bfd_default_scan,
 523   0,
 524 };
 525
 526 /*
 527 FUNCTION
 528         bfd_set_arch_info
 529
 530 SYNOPSIS
 531         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 532
 533 DESCRIPTION
 534         Set the architecture info of @var{abfd} to @var{arg}.
 535 */
 536
 537 void
 538 bfd_set_arch_info (abfd, arg)
 539      bfd *abfd;
 540      const bfd_arch_info_type *arg;
 541 {
 542   abfd->arch_info = arg;
 543 }
 544
 545 /*
 546 INTERNAL_FUNCTION
 547         bfd_default_set_arch_mach
 548
 549 SYNOPSIS
 550         boolean bfd_default_set_arch_mach(bfd *abfd,
 551                 enum bfd_architecture arch,
 552                 unsigned long mach);
 553
 554 DESCRIPTION
 555         Set the architecture and machine type in BFD @var{abfd}
 556         to @var{arch} and @var{mach}.  Find the correct
 557         pointer to a structure and insert it into the <<arch_info>>
 558         pointer.
 559 */
 560
 561 boolean
 562 bfd_default_set_arch_mach (abfd, arch, mach)
 563      bfd *abfd;
 564      enum bfd_architecture arch;
 565      unsigned long mach;
 566 {
 567   const bfd_arch_info_type * const *app, *ap;
 568
 569   for (app = bfd_archures_list; *app != NULL; app++)
 570     {
 571       for (ap = *app; ap != NULL; ap = ap->next)
 572         {
 573           if (ap->arch == arch
 574               && (ap->mach == mach
 575                   || (mach == 0 && ap->the_default)))
 576             {
 577               abfd->arch_info = ap;
 578               return true;
 579             }
 580         }
 581     }
 582
 583   abfd->arch_info = &bfd_default_arch_struct;
 584   bfd_set_error (bfd_error_bad_value);
 585   return false;
 586 }
 587
 588 /*
 589 FUNCTION
 590         bfd_get_arch
 591
 592 SYNOPSIS
 593         enum bfd_architecture bfd_get_arch(bfd *abfd);
 594
 595 DESCRIPTION
 596         Return the enumerated type which describes the BFD @var{abfd}'s
 597         architecture.
 598 */
 599
 600 enum bfd_architecture
 601 bfd_get_arch (abfd)
 602      bfd *abfd;
 603 {
 604   return abfd->arch_info->arch;
 605 }
 606
 607 /*
 608 FUNCTION
 609         bfd_get_mach
 610
 611 SYNOPSIS
 612         unsigned long bfd_get_mach(bfd *abfd);
 613
 614 DESCRIPTION
 615         Return the long type which describes the BFD @var{abfd}'s
 616         machine.
 617 */
 618
 619 unsigned long
 620 bfd_get_mach (abfd)
 621      bfd *abfd;
 622 {
 623   return abfd->arch_info->mach;
 624 }
 625
 626 /*
 627 FUNCTION
 628         bfd_arch_bits_per_byte
 629
 630 SYNOPSIS
 631         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 632
 633 DESCRIPTION
 634         Return the number of bits in one of the BFD @var{abfd}'s
 635         architecture's bytes.
 636 */
 637
 638 unsigned int
 639 bfd_arch_bits_per_byte (abfd)
 640      bfd *abfd;
 641 {
 642   return abfd->arch_info->bits_per_byte;
 643 }
 644
 645 /*
 646 FUNCTION
 647         bfd_arch_bits_per_address
 648
 649 SYNOPSIS
 650         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 651
 652 DESCRIPTION
 653         Return the number of bits in one of the BFD @var{abfd}'s
 654         architecture's addresses.
 655 */
 656
 657 unsigned int
 658 bfd_arch_bits_per_address (abfd)
 659      bfd *abfd;
 660 {
 661   return abfd->arch_info->bits_per_address;
 662 }
 663
 664 /*
 665 INTERNAL_FUNCTION
 666         bfd_default_compatible
 667
 668 SYNOPSIS
 669         const bfd_arch_info_type *bfd_default_compatible
 670         (const bfd_arch_info_type *a,
 671         const bfd_arch_info_type *b);
 672
 673 DESCRIPTION
 674         The default function for testing for compatibility.
 675 */
 676
 677 const bfd_arch_info_type *
 678 bfd_default_compatible (a, b)
 679      const bfd_arch_info_type *a;
 680      const bfd_arch_info_type *b;
 681 {
 682   if (a->arch != b->arch)
 683     return NULL;
 684
 685   if (a->mach > b->mach)
 686     return a;
 687
 688   if (b->mach > a->mach)
 689     return b;
 690
 691   return a;
 692 }
 693
 694 /*
 695 INTERNAL_FUNCTION
 696         bfd_default_scan
 697
 698 SYNOPSIS
 699         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 700
 701 DESCRIPTION
 702         The default function for working out whether this is an
 703         architecture hit and a machine hit.
 704 */
 705
 706 boolean
 707 bfd_default_scan (info, string)
 708      const struct bfd_arch_info *info;
 709      const char *string;
 710 {
 711   const char *ptr_src;
 712   const char *ptr_tst;
 713   unsigned long number;
 714   enum bfd_architecture arch;
 715   const char *printable_name_colon;
 716
 717   /* Exact match of the architecture name (ARCH_NAME) and also the
 718      default architecture?  */
 719   if (strcasecmp (string, info->arch_name) == 0
 720       && info->the_default)
 721     return true;
 722
 723   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 724   if (strcasecmp (string, info->printable_name) == 0)
 725     return true;
 726
 727   /* Given that printable_name contains no colon, attempt to match:
 728      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 729   printable_name_colon = strchr (info->printable_name, ':');
 730   if (printable_name_colon == NULL)
 731     {
 732       int strlen_arch_name = strlen (info->arch_name);
 733       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 734         {
 735           if (string[strlen_arch_name] == ':')
 736             {
 737               if (strcasecmp (string + strlen_arch_name + 1,
 738                               info->printable_name) == 0)
 739                 return true;
 740             }
 741           else
 742             {
 743               if (strcasecmp (string + strlen_arch_name,
 744                               info->printable_name) == 0)
 745                 return true;
 746             }
 747         }
 748     }
 749
 750   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 751      Attempt to match: <arch> <mach>?  */
 752   if (printable_name_colon != NULL)
 753     {
 754       int colon_index = printable_name_colon - info->printable_name;
 755       if (strncasecmp (string, info->printable_name, colon_index) == 0
 756           && strcasecmp (string + colon_index,
 757                          info->printable_name + colon_index + 1) == 0)
 758         return true;
 759     }
 760
 761   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 762      attempt to match just <mach>, it could be ambigious.  This test
 763      is left until later.  */
 764
 765   /* NOTE: The below is retained for compatibility only.  Please do
 766      not add to this code.  */
 767
 768   /* See how much of the supplied string matches with the
 769      architecture, eg the string m68k:68020 would match the 68k entry
 770      up to the :, then we get left with the machine number.  */
 771
 772   for (ptr_src = string, ptr_tst = info->arch_name;
 773        *ptr_src && *ptr_tst;
 774        ptr_src++, ptr_tst++)
 775     {
 776       if (*ptr_src != *ptr_tst)
 777         break;
 778     }
 779
 780   /* Chewed up as much of the architecture as will match, skip any
 781      colons.  */
 782   if (*ptr_src == ':')
 783     ptr_src++;
 784
 785   if (*ptr_src == 0)
 786     {
 787       /* Nothing more, then only keep this one if it is the default
 788          machine for this architecture.  */
 789       return info->the_default;
 790     }
 791
 792   number = 0;
 793   while (isdigit ((unsigned char) *ptr_src))
 794     {
 795       number = number * 10 + *ptr_src - '0';
 796       ptr_src++;
 797     }
 798
 799   /* NOTE: The below is retained for compatibility only.
 800      PLEASE DO NOT ADD TO THIS CODE.  */
 801
 802   switch (number)
 803     {
 804       /* FIXME: These are needed to parse IEEE objects.  */
 805       /* The following seven case's are here only for compatibility with
 806          older binutils (at least IEEE objects from binutils 2.9.1 require
 807          them).  */
 808     case bfd_mach_m68000:
 809     case bfd_mach_m68010:
 810     case bfd_mach_m68020:
 811     case bfd_mach_m68030:
 812     case bfd_mach_m68040:
 813     case bfd_mach_m68060:
 814     case bfd_mach_cpu32:
 815       arch = bfd_arch_m68k;
 816       break;
 817     case 68000:
 818       arch = bfd_arch_m68k;
 819       number = bfd_mach_m68000;
 820       break;
 821     case 68010:
 822       arch = bfd_arch_m68k;
 823       number = bfd_mach_m68010;
 824       break;
 825     case 68020:
 826       arch = bfd_arch_m68k;
 827       number = bfd_mach_m68020;
 828       break;
 829     case 68030:
 830       arch = bfd_arch_m68k;
 831       number = bfd_mach_m68030;
 832       break;
 833     case 68040:
 834       arch = bfd_arch_m68k;
 835       number = bfd_mach_m68040;
 836       break;
 837     case 68060:
 838       arch = bfd_arch_m68k;
 839       number = bfd_mach_m68060;
 840       break;
 841     case 68332:
 842       arch = bfd_arch_m68k;
 843       number = bfd_mach_cpu32;
 844       break;
 845
 846     case 32000:
 847       arch = bfd_arch_we32k;
 848       break;
 849
 850     case 3000:
 851       arch = bfd_arch_mips;
 852       number = bfd_mach_mips3000;
 853       break;
 854
 855     case 4000:
 856       arch = bfd_arch_mips;
 857       number = bfd_mach_mips4000;
 858       break;
 859
 860     case 6000:
 861       arch = bfd_arch_rs6000;
 862       break;
 863
 864     case 7410:
 865       arch = bfd_arch_sh;
 866       number = bfd_mach_sh_dsp;
 867       break;
 868
 869     case 7708:
 870       arch = bfd_arch_sh;
 871       number = bfd_mach_sh3;
 872       break;
 873
 874     case 7729:
 875       arch = bfd_arch_sh;
 876       number = bfd_mach_sh3_dsp;
 877       break;
 878
 879     case 7750:
 880       arch = bfd_arch_sh;
 881       number = bfd_mach_sh4;
 882       break;
 883
 884     default:
 885       return false;
 886     }
 887
 888   if (arch != info->arch)
 889     return false;
 890
 891   if (number != info->mach)
 892     return false;
 893
 894   return true;
 895 }
 896
 897 /*
 898 FUNCTION
 899         bfd_get_arch_info
 900
 901 SYNOPSIS
 902         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 903
 904 DESCRIPTION
 905         Return the architecture info struct in @var{abfd}.
 906 */
 907
 908 const bfd_arch_info_type *
 909 bfd_get_arch_info (abfd)
 910      bfd *abfd;
 911 {
 912   return abfd->arch_info;
 913 }
 914
 915 /*
 916 FUNCTION
 917         bfd_lookup_arch
 918
 919 SYNOPSIS
 920         const bfd_arch_info_type *bfd_lookup_arch
 921                 (enum bfd_architecture
 922                 arch,
 923                 unsigned long machine);
 924
 925 DESCRIPTION
 926         Look for the architecure info structure which matches the
 927         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 928         machine/architecture structure which marks itself as the
 929         default.
 930 */
 931
 932 const bfd_arch_info_type *
 933 bfd_lookup_arch (arch, machine)
 934      enum bfd_architecture arch;
 935      unsigned long machine;
 936 {
 937   const bfd_arch_info_type * const *app, *ap;
 938
 939   for (app = bfd_archures_list; *app != NULL; app++)
 940     {
 941       for (ap = *app; ap != NULL; ap = ap->next)
 942         {
 943           if (ap->arch == arch
 944               && (ap->mach == machine
 945                   || (machine == 0 && ap->the_default)))
 946             return ap;
 947         }
 948     }
 949
 950   return NULL;
 951 }
 952
 953 /*
 954 FUNCTION
 955         bfd_printable_arch_mach
 956
 957 SYNOPSIS
 958         const char *bfd_printable_arch_mach
 959                 (enum bfd_architecture arch, unsigned long machine);
 960
 961 DESCRIPTION
 962         Return a printable string representing the architecture and
 963         machine type.
 964
 965         This routine is depreciated.
 966 */
 967
 968 const char *
 969 bfd_printable_arch_mach (arch, machine)
 970      enum bfd_architecture arch;
 971      unsigned long machine;
 972 {
 973   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
 974
 975   if (ap)
 976     return ap->printable_name;
 977   return "UNKNOWN!";
 978 }
 979
 980 /*
 981 FUNCTION
 982         bfd_octets_per_byte
 983
 984 SYNOPSIS
 985         unsigned int bfd_octets_per_byte(bfd *abfd);
 986
 987 DESCRIPTION
 988         Return the number of octets (8-bit quantities) per target byte
 989         (minimum addressable unit).  In most cases, this will be one, but some
 990         DSP targets have 16, 32, or even 48 bits per byte.
 991 */
 992
 993 unsigned int
 994 bfd_octets_per_byte (abfd)
 995      bfd *abfd;
 996 {
 997   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
 998                                         bfd_get_mach (abfd));
 999 }
1000
1001 /*
1002 FUNCTION
1003         bfd_arch_mach_octets_per_byte
1004
1005 SYNOPSIS
1006         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1007                                                    unsigned long machine);
1008
1009 DESCRIPTION
1010         See bfd_octets_per_byte.
1011
1012         This routine is provided for those cases where a bfd * is not
1013         available
1014 */
1015
1016 unsigned int
1017 bfd_arch_mach_octets_per_byte (arch, mach)
1018      enum bfd_architecture arch;
1019      unsigned long mach;
1020 {
1021   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1022
1023   if (ap)
1024     return ap->bits_per_byte / 8;
1025   return 1;
1026 }