bfd/archures.c

   1 /* BFD library support routines for architectures.
   2    Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   3    2000, 2001
   4    Free Software Foundation, Inc.
   5    Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
   6
   7 This file is part of BFD, the Binary File Descriptor library.
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 #include "bfd.h"
  24 #include "sysdep.h"
  25 #include "libbfd.h"
  26 #include "safe-ctype.h"
  27
  28 /*
  29
  30 SECTION
  31         Architectures
  32
  33         BFD keeps one atom in a BFD describing the
  34         architecture of the data attached to the BFD: a pointer to a
  35         <<bfd_arch_info_type>>.
  36
  37         Pointers to structures can be requested independently of a BFD
  38         so that an architecture's information can be interrogated
  39         without access to an open BFD.
  40
  41         The architecture information is provided by each architecture package.
  42         The set of default architectures is selected by the macro
  43         <<SELECT_ARCHITECTURES>>.  This is normally set up in the
  44         @file{config/@var{target}.mt} file of your choice.  If the name is not
  45         defined, then all the architectures supported are included.
  46
  47         When BFD starts up, all the architectures are called with an
  48         initialize method.  It is up to the architecture back end to
  49         insert as many items into the list of architectures as it wants to;
  50         generally this would be one for each machine and one for the
  51         default case (an item with a machine field of 0).
  52
  53         BFD's idea of an architecture is implemented in @file{archures.c}.
  54 */
  55
  56 /*
  57
  58 SUBSECTION
  59         bfd_architecture
  60
  61 DESCRIPTION
  62         This enum gives the object file's CPU architecture, in a
  63         global sense---i.e., what processor family does it belong to?
  64         Another field indicates which processor within
  65         the family is in use.  The machine gives a number which
  66         distinguishes different versions of the architecture,
  67         containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
  68         and 68020 and 68030 for Motorola 68020 and 68030.
  69
  70 .enum bfd_architecture
  71 .{
  72 .  bfd_arch_unknown,   {* File arch not known *}
  73 .  bfd_arch_obscure,   {* Arch known, not one of these *}
  74 .  bfd_arch_m68k,      {* Motorola 68xxx *}
  75 .#define bfd_mach_m68000 1
  76 .#define bfd_mach_m68008 2
  77 .#define bfd_mach_m68010 3
  78 .#define bfd_mach_m68020 4
  79 .#define bfd_mach_m68030 5
  80 .#define bfd_mach_m68040 6
  81 .#define bfd_mach_m68060 7
  82 .#define bfd_mach_cpu32  8
  83 .#define bfd_mach_mcf5200  9
  84 .#define bfd_mach_mcf5206e 10
  85 .#define bfd_mach_mcf5307  11
  86 .#define bfd_mach_mcf5407  12
  87 .  bfd_arch_vax,       {* DEC Vax *}
  88 .  bfd_arch_i960,      {* Intel 960 *}
  89 .    {* The order of the following is important.
  90 .       lower number indicates a machine type that
  91 .       only accepts a subset of the instructions
  92 .       available to machines with higher numbers.
  93 .       The exception is the "ca", which is
  94 .       incompatible with all other machines except
  95 .       "core". *}
  96 .
  97 .#define bfd_mach_i960_core      1
  98 .#define bfd_mach_i960_ka_sa     2
  99 .#define bfd_mach_i960_kb_sb     3
 100 .#define bfd_mach_i960_mc        4
 101 .#define bfd_mach_i960_xa        5
 102 .#define bfd_mach_i960_ca        6
 103 .#define bfd_mach_i960_jx        7
 104 .#define bfd_mach_i960_hx        8
 105 .
 106 .  bfd_arch_a29k,      {* AMD 29000 *}
 107 .  bfd_arch_sparc,     {* SPARC *}
 108 .#define bfd_mach_sparc                 1
 109 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env.  *}
 110 .#define bfd_mach_sparc_sparclet        2
 111 .#define bfd_mach_sparc_sparclite       3
 112 .#define bfd_mach_sparc_v8plus          4
 113 .#define bfd_mach_sparc_v8plusa         5 {* with ultrasparc add'ns *}
 114 .#define bfd_mach_sparc_sparclite_le    6
 115 .#define bfd_mach_sparc_v9              7
 116 .#define bfd_mach_sparc_v9a             8 {* with ultrasparc add'ns *}
 117 .#define bfd_mach_sparc_v8plusb         9 {* with cheetah add'ns *}
 118 .#define bfd_mach_sparc_v9b             10 {* with cheetah add'ns *}
 119 .{* Nonzero if MACH has the v9 instruction set.  *}
 120 .#define bfd_mach_sparc_v9_p(mach) \
 121 .  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
 122 .   && (mach) != bfd_mach_sparc_sparclite_le)
 123 .  bfd_arch_mips,      {* MIPS Rxxxx *}
 124 .#define bfd_mach_mips3000              3000
 125 .#define bfd_mach_mips3900              3900
 126 .#define bfd_mach_mips4000              4000
 127 .#define bfd_mach_mips4010              4010
 128 .#define bfd_mach_mips4100              4100
 129 .#define bfd_mach_mips4111              4111
 130 .#define bfd_mach_mips4300              4300
 131 .#define bfd_mach_mips4400              4400
 132 .#define bfd_mach_mips4600              4600
 133 .#define bfd_mach_mips4650              4650
 134 .#define bfd_mach_mips5000              5000
 135 .#define bfd_mach_mips6000              6000
 136 .#define bfd_mach_mips8000              8000
 137 .#define bfd_mach_mips10000             10000
 138 .#define bfd_mach_mips12000             12000
 139 .#define bfd_mach_mips16                16
 140 .#define bfd_mach_mips5                 5
 141 .#define bfd_mach_mips_sb1              12310201 {* octal 'SB', 01 *}
 142 .#define bfd_mach_mipsisa32             32
 143 .#define bfd_mach_mipsisa64             64
 144 .  bfd_arch_i386,      {* Intel 386 *}
 145 .#define bfd_mach_i386_i386 0
 146 .#define bfd_mach_i386_i8086 1
 147 .#define bfd_mach_i386_i386_intel_syntax 2
 148 .#define bfd_mach_x86_64 3
 149 .#define bfd_mach_x86_64_intel_syntax 4
 150 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 151 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 152 .  bfd_arch_i860,      {* Intel 860 *}
 153 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 154 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 155 .  bfd_arch_alliant,   {* Alliant *}
 156 .  bfd_arch_convex,    {* Convex *}
 157 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 158 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 159 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 160 .#define bfd_mach_h8300   1
 161 .#define bfd_mach_h8300h  2
 162 .#define bfd_mach_h8300s  3
 163 .  bfd_arch_pdp11,     {* DEC PDP-11 *}
 164 .  bfd_arch_powerpc,   {* PowerPC *}
 165 .#define bfd_mach_ppc           0
 166 .#define bfd_mach_ppc_403       403
 167 .#define bfd_mach_ppc_403gc     4030
 168 .#define bfd_mach_ppc_505       505
 169 .#define bfd_mach_ppc_601       601
 170 .#define bfd_mach_ppc_602       602
 171 .#define bfd_mach_ppc_603       603
 172 .#define bfd_mach_ppc_ec603e    6031
 173 .#define bfd_mach_ppc_604       604
 174 .#define bfd_mach_ppc_620       620
 175 .#define bfd_mach_ppc_630       630
 176 .#define bfd_mach_ppc_750       750
 177 .#define bfd_mach_ppc_860       860
 178 .#define bfd_mach_ppc_a35       35
 179 .#define bfd_mach_ppc_rs64ii    642
 180 .#define bfd_mach_ppc_rs64iii   643
 181 .#define bfd_mach_ppc_7400      7400
 182 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 183 .#define bfd_mach_rs6k          0
 184 .#define bfd_mach_rs6k_rs1      6001
 185 .#define bfd_mach_rs6k_rsc      6003
 186 .#define bfd_mach_rs6k_rs2      6002
 187 .  bfd_arch_hppa,      {* HP PA RISC *}
 188 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 189 .#define bfd_mach_d10v          0
 190 .#define bfd_mach_d10v_ts2      2
 191 .#define bfd_mach_d10v_ts3      3
 192 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 193 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 194 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 195 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 196 .#define bfd_mach_z8001         1
 197 .#define bfd_mach_z8002         2
 198 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 199 .  bfd_arch_sh,        {* Hitachi SH *}
 200 .#define bfd_mach_sh            0
 201 .#define bfd_mach_sh2        0x20
 202 .#define bfd_mach_sh_dsp     0x2d
 203 .#define bfd_mach_sh3        0x30
 204 .#define bfd_mach_sh3_dsp    0x3d
 205 .#define bfd_mach_sh3e       0x3e
 206 .#define bfd_mach_sh4        0x40
 207 .  bfd_arch_alpha,     {* Dec Alpha *}
 208 .#define bfd_mach_alpha_ev4  0x10
 209 .#define bfd_mach_alpha_ev5  0x20
 210 .#define bfd_mach_alpha_ev6  0x30
 211 .  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
 212 .#define bfd_mach_arm_2         1
 213 .#define bfd_mach_arm_2a        2
 214 .#define bfd_mach_arm_3         3
 215 .#define bfd_mach_arm_3M        4
 216 .#define bfd_mach_arm_4         5
 217 .#define bfd_mach_arm_4T        6
 218 .#define bfd_mach_arm_5         7
 219 .#define bfd_mach_arm_5T        8
 220 .#define bfd_mach_arm_5TE       9
 221 .#define bfd_mach_arm_XScale    10
 222 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 223 .  bfd_arch_w65,       {* WDC 65816 *}
 224 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 225 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 226 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 227 .  bfd_arch_v850,      {* NEC V850 *}
 228 .#define bfd_mach_v850          0
 229 .#define bfd_mach_v850e         'E'
 230 .#define bfd_mach_v850ea        'A'
 231 .  bfd_arch_arc,       {* ARC Cores *}
 232 .#define bfd_mach_arc_5         0
 233 .#define bfd_mach_arc_6         1
 234 .#define bfd_mach_arc_7         2
 235 .#define bfd_mach_arc_8         3
 236 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 237 .#define bfd_mach_m32r          0 {* backwards compatibility *}
 238 .#define bfd_mach_m32rx         'x'
 239 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 240 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 241 .#define bfd_mach_mn10300               300
 242 .#define bfd_mach_am33          330
 243 .  bfd_arch_fr30,
 244 .#define bfd_mach_fr30          0x46523330
 245 .  bfd_arch_mcore,
 246 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 247 .#define bfd_mach_ia64_elf64    0
 248 .#define bfd_mach_ia64_elf32    1
 249 .  bfd_arch_pj,
 250 .  bfd_arch_avr,       {* Atmel AVR microcontrollers *}
 251 .#define bfd_mach_avr1          1
 252 .#define bfd_mach_avr2          2
 253 .#define bfd_mach_avr3          3
 254 .#define bfd_mach_avr4          4
 255 .#define bfd_mach_avr5          5
 256 .  bfd_arch_cris,      {* Axis CRIS *}
 257 .  bfd_arch_s390,      {* IBM s390 *}
 258 .#define bfd_mach_s390_esa      0
 259 .#define bfd_mach_s390_esame    1
 260 .  bfd_arch_openrisc,  {* OpenRISC *}
 261 .  bfd_arch_mmix,      {* Donald Knuth's educational processor *}
 262 .  bfd_arch_last
 263 .  };
 264 */
 265
 266 /*
 267 SUBSECTION
 268         bfd_arch_info
 269
 270 DESCRIPTION
 271         This structure contains information on architectures for use
 272         within BFD.
 273
 274 .
 275 .typedef struct bfd_arch_info
 276 .{
 277 .  int bits_per_word;
 278 .  int bits_per_address;
 279 .  int bits_per_byte;
 280 .  enum bfd_architecture arch;
 281 .  unsigned long mach;
 282 .  const char *arch_name;
 283 .  const char *printable_name;
 284 .  unsigned int section_align_power;
 285 .  {* True if this is the default machine for the architecture.  *}
 286 .  boolean the_default;
 287 .  const struct bfd_arch_info * (*compatible)
 288 .       PARAMS ((const struct bfd_arch_info *a,
 289 .                const struct bfd_arch_info *b));
 290 .
 291 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 292 .
 293 .  const struct bfd_arch_info *next;
 294 .} bfd_arch_info_type;
 295 */
 296
 297 extern const bfd_arch_info_type bfd_a29k_arch;
 298 extern const bfd_arch_info_type bfd_alpha_arch;
 299 extern const bfd_arch_info_type bfd_arc_arch;
 300 extern const bfd_arch_info_type bfd_arm_arch;
 301 extern const bfd_arch_info_type bfd_cris_arch;
 302 extern const bfd_arch_info_type bfd_d10v_arch;
 303 extern const bfd_arch_info_type bfd_d30v_arch;
 304 extern const bfd_arch_info_type bfd_h8300_arch;
 305 extern const bfd_arch_info_type bfd_h8500_arch;
 306 extern const bfd_arch_info_type bfd_hppa_arch;
 307 extern const bfd_arch_info_type bfd_i370_arch;
 308 extern const bfd_arch_info_type bfd_i386_arch;
 309 extern const bfd_arch_info_type bfd_i860_arch;
 310 extern const bfd_arch_info_type bfd_i960_arch;
 311 extern const bfd_arch_info_type bfd_m32r_arch;
 312 extern const bfd_arch_info_type bfd_m68hc11_arch;
 313 extern const bfd_arch_info_type bfd_m68hc12_arch;
 314 extern const bfd_arch_info_type bfd_m68k_arch;
 315 extern const bfd_arch_info_type bfd_m88k_arch;
 316 extern const bfd_arch_info_type bfd_mips_arch;
 317 extern const bfd_arch_info_type bfd_mn10200_arch;
 318 extern const bfd_arch_info_type bfd_mn10300_arch;
 319 extern const bfd_arch_info_type bfd_pdp11_arch;
 320 extern const bfd_arch_info_type bfd_powerpc_arch;
 321 extern const bfd_arch_info_type bfd_rs6000_arch;
 322 extern const bfd_arch_info_type bfd_pj_arch;
 323 extern const bfd_arch_info_type bfd_sh_arch;
 324 extern const bfd_arch_info_type bfd_sparc_arch;
 325 extern const bfd_arch_info_type bfd_tic30_arch;
 326 extern const bfd_arch_info_type bfd_tic54x_arch;
 327 extern const bfd_arch_info_type bfd_tic80_arch;
 328 extern const bfd_arch_info_type bfd_vax_arch;
 329 extern const bfd_arch_info_type bfd_we32k_arch;
 330 extern const bfd_arch_info_type bfd_z8k_arch;
 331 extern const bfd_arch_info_type bfd_ns32k_arch;
 332 extern const bfd_arch_info_type bfd_w65_arch;
 333 extern const bfd_arch_info_type bfd_v850_arch;
 334 extern const bfd_arch_info_type bfd_fr30_arch;
 335 extern const bfd_arch_info_type bfd_mcore_arch;
 336 extern const bfd_arch_info_type bfd_avr_arch;
 337 extern const bfd_arch_info_type bfd_ia64_arch;
 338 extern const bfd_arch_info_type bfd_s390_arch;
 339 extern const bfd_arch_info_type bfd_openrisc_arch;
 340 extern const bfd_arch_info_type bfd_mmix_arch;
 341
 342 static const bfd_arch_info_type * const bfd_archures_list[] = {
 343 #ifdef SELECT_ARCHITECTURES
 344   SELECT_ARCHITECTURES,
 345 #else
 346   &bfd_a29k_arch,
 347   &bfd_alpha_arch,
 348   &bfd_arc_arch,
 349   &bfd_arm_arch,
 350   &bfd_cris_arch,
 351   &bfd_d10v_arch,
 352   &bfd_d30v_arch,
 353   &bfd_h8300_arch,
 354   &bfd_h8500_arch,
 355   &bfd_hppa_arch,
 356   &bfd_i370_arch,
 357   &bfd_i386_arch,
 358   &bfd_i860_arch,
 359   &bfd_i960_arch,
 360   &bfd_m32r_arch,
 361   &bfd_m68hc11_arch,
 362   &bfd_m68hc12_arch,
 363   &bfd_m68k_arch,
 364   &bfd_m88k_arch,
 365   &bfd_mips_arch,
 366   &bfd_mn10200_arch,
 367   &bfd_mn10300_arch,
 368   &bfd_pdp11_arch,
 369   &bfd_powerpc_arch,
 370   &bfd_rs6000_arch,
 371   &bfd_sh_arch,
 372   &bfd_sparc_arch,
 373   &bfd_tic30_arch,
 374   &bfd_tic54x_arch,
 375   &bfd_tic80_arch,
 376   &bfd_vax_arch,
 377   &bfd_we32k_arch,
 378   &bfd_z8k_arch,
 379   &bfd_ns32k_arch,
 380   &bfd_w65_arch,
 381   &bfd_v850_arch,
 382   &bfd_fr30_arch,
 383   &bfd_mcore_arch,
 384   &bfd_avr_arch,
 385   &bfd_ia64_arch,
 386   &bfd_s390_arch,
 387   &bfd_openrisc_arch,
 388   &bfd_mmix_arch,
 389 #endif
 390   0
 391 };
 392
 393 /*
 394 FUNCTION
 395         bfd_printable_name
 396
 397 SYNOPSIS
 398         const char *bfd_printable_name(bfd *abfd);
 399
 400 DESCRIPTION
 401         Return a printable string representing the architecture and machine
 402         from the pointer to the architecture info structure.
 403
 404 */
 405
 406 const char *
 407 bfd_printable_name (abfd)
 408      bfd *abfd;
 409 {
 410   return abfd->arch_info->printable_name;
 411 }
 412
 413 /*
 414 FUNCTION
 415         bfd_scan_arch
 416
 417 SYNOPSIS
 418         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 419
 420 DESCRIPTION
 421         Figure out if BFD supports any cpu which could be described with
 422         the name @var{string}.  Return a pointer to an <<arch_info>>
 423         structure if a machine is found, otherwise NULL.
 424 */
 425
 426 const bfd_arch_info_type *
 427 bfd_scan_arch (string)
 428      const char *string;
 429 {
 430   const bfd_arch_info_type * const *app, *ap;
 431
 432   /* Look through all the installed architectures.  */
 433   for (app = bfd_archures_list; *app != NULL; app++)
 434     {
 435       for (ap = *app; ap != NULL; ap = ap->next)
 436         {
 437           if (ap->scan (ap, string))
 438             return ap;
 439         }
 440     }
 441
 442   return NULL;
 443 }
 444
 445 /*
 446 FUNCTION
 447         bfd_arch_list
 448
 449 SYNOPSIS
 450         const char **bfd_arch_list(void);
 451
 452 DESCRIPTION
 453         Return a freshly malloced NULL-terminated vector of the names
 454         of all the valid BFD architectures.  Do not modify the names.
 455 */
 456
 457 const char **
 458 bfd_arch_list ()
 459 {
 460   int vec_length = 0;
 461   const char **name_ptr;
 462   const char **name_list;
 463   const bfd_arch_info_type * const *app;
 464   bfd_size_type amt;
 465
 466   /* Determine the number of architectures.  */
 467   vec_length = 0;
 468   for (app = bfd_archures_list; *app != NULL; app++)
 469     {
 470       const bfd_arch_info_type *ap;
 471       for (ap = *app; ap != NULL; ap = ap->next)
 472         {
 473           vec_length++;
 474         }
 475     }
 476
 477   amt = (vec_length + 1) * sizeof (char **);
 478   name_list = (const char **) bfd_malloc (amt);
 479   if (name_list == NULL)
 480     return NULL;
 481
 482   /* Point the list at each of the names.  */
 483   name_ptr = name_list;
 484   for (app = bfd_archures_list; *app != NULL; app++)
 485     {
 486       const bfd_arch_info_type *ap;
 487       for (ap = *app; ap != NULL; ap = ap->next)
 488         {
 489           *name_ptr = ap->printable_name;
 490           name_ptr++;
 491         }
 492     }
 493   *name_ptr = NULL;
 494
 495   return name_list;
 496 }
 497
 498 /*
 499 FUNCTION
 500         bfd_arch_get_compatible
 501
 502 SYNOPSIS
 503         const bfd_arch_info_type *bfd_arch_get_compatible(
 504                 const bfd *abfd,
 505                 const bfd *bbfd);
 506
 507 DESCRIPTION
 508         Determine whether two BFDs'
 509         architectures and machine types are compatible.  Calculates
 510         the lowest common denominator between the two architectures
 511         and machine types implied by the BFDs and returns a pointer to
 512         an <<arch_info>> structure describing the compatible machine.
 513 */
 514
 515 const bfd_arch_info_type *
 516 bfd_arch_get_compatible (abfd, bbfd)
 517      const bfd *abfd;
 518      const bfd *bbfd;
 519 {
 520   /* If either architecture is unknown, then all we can do is assume
 521      the user knows what he's doing.  */
 522   if (abfd->arch_info->arch == bfd_arch_unknown)
 523     return bbfd->arch_info;
 524   if (bbfd->arch_info->arch == bfd_arch_unknown)
 525     return abfd->arch_info;
 526
 527   /* Otherwise architecture-specific code has to decide.  */
 528   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 529 }
 530
 531 /*
 532 INTERNAL_DEFINITION
 533         bfd_default_arch_struct
 534
 535 DESCRIPTION
 536         The <<bfd_default_arch_struct>> is an item of
 537         <<bfd_arch_info_type>> which has been initialized to a fairly
 538         generic state.  A BFD starts life by pointing to this
 539         structure, until the correct back end has determined the real
 540         architecture of the file.
 541
 542 .extern const bfd_arch_info_type bfd_default_arch_struct;
 543 */
 544
 545 const bfd_arch_info_type bfd_default_arch_struct = {
 546   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 547   bfd_default_compatible,
 548   bfd_default_scan,
 549   0,
 550 };
 551
 552 /*
 553 FUNCTION
 554         bfd_set_arch_info
 555
 556 SYNOPSIS
 557         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 558
 559 DESCRIPTION
 560         Set the architecture info of @var{abfd} to @var{arg}.
 561 */
 562
 563 void
 564 bfd_set_arch_info (abfd, arg)
 565      bfd *abfd;
 566      const bfd_arch_info_type *arg;
 567 {
 568   abfd->arch_info = arg;
 569 }
 570
 571 /*
 572 INTERNAL_FUNCTION
 573         bfd_default_set_arch_mach
 574
 575 SYNOPSIS
 576         boolean bfd_default_set_arch_mach(bfd *abfd,
 577                 enum bfd_architecture arch,
 578                 unsigned long mach);
 579
 580 DESCRIPTION
 581         Set the architecture and machine type in BFD @var{abfd}
 582         to @var{arch} and @var{mach}.  Find the correct
 583         pointer to a structure and insert it into the <<arch_info>>
 584         pointer.
 585 */
 586
 587 boolean
 588 bfd_default_set_arch_mach (abfd, arch, mach)
 589      bfd *abfd;
 590      enum bfd_architecture arch;
 591      unsigned long mach;
 592 {
 593   const bfd_arch_info_type * const *app, *ap;
 594
 595   for (app = bfd_archures_list; *app != NULL; app++)
 596     {
 597       for (ap = *app; ap != NULL; ap = ap->next)
 598         {
 599           if (ap->arch == arch
 600               && (ap->mach == mach
 601                   || (mach == 0 && ap->the_default)))
 602             {
 603               abfd->arch_info = ap;
 604               return true;
 605             }
 606         }
 607     }
 608
 609   abfd->arch_info = &bfd_default_arch_struct;
 610   bfd_set_error (bfd_error_bad_value);
 611   return false;
 612 }
 613
 614 /*
 615 FUNCTION
 616         bfd_get_arch
 617
 618 SYNOPSIS
 619         enum bfd_architecture bfd_get_arch(bfd *abfd);
 620
 621 DESCRIPTION
 622         Return the enumerated type which describes the BFD @var{abfd}'s
 623         architecture.
 624 */
 625
 626 enum bfd_architecture
 627 bfd_get_arch (abfd)
 628      bfd *abfd;
 629 {
 630   return abfd->arch_info->arch;
 631 }
 632
 633 /*
 634 FUNCTION
 635         bfd_get_mach
 636
 637 SYNOPSIS
 638         unsigned long bfd_get_mach(bfd *abfd);
 639
 640 DESCRIPTION
 641         Return the long type which describes the BFD @var{abfd}'s
 642         machine.
 643 */
 644
 645 unsigned long
 646 bfd_get_mach (abfd)
 647      bfd *abfd;
 648 {
 649   return abfd->arch_info->mach;
 650 }
 651
 652 /*
 653 FUNCTION
 654         bfd_arch_bits_per_byte
 655
 656 SYNOPSIS
 657         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 658
 659 DESCRIPTION
 660         Return the number of bits in one of the BFD @var{abfd}'s
 661         architecture's bytes.
 662 */
 663
 664 unsigned int
 665 bfd_arch_bits_per_byte (abfd)
 666      bfd *abfd;
 667 {
 668   return abfd->arch_info->bits_per_byte;
 669 }
 670
 671 /*
 672 FUNCTION
 673         bfd_arch_bits_per_address
 674
 675 SYNOPSIS
 676         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 677
 678 DESCRIPTION
 679         Return the number of bits in one of the BFD @var{abfd}'s
 680         architecture's addresses.
 681 */
 682
 683 unsigned int
 684 bfd_arch_bits_per_address (abfd)
 685      bfd *abfd;
 686 {
 687   return abfd->arch_info->bits_per_address;
 688 }
 689
 690 /*
 691 INTERNAL_FUNCTION
 692         bfd_default_compatible
 693
 694 SYNOPSIS
 695         const bfd_arch_info_type *bfd_default_compatible
 696         (const bfd_arch_info_type *a,
 697         const bfd_arch_info_type *b);
 698
 699 DESCRIPTION
 700         The default function for testing for compatibility.
 701 */
 702
 703 const bfd_arch_info_type *
 704 bfd_default_compatible (a, b)
 705      const bfd_arch_info_type *a;
 706      const bfd_arch_info_type *b;
 707 {
 708   if (a->arch != b->arch)
 709     return NULL;
 710
 711   if (a->mach > b->mach)
 712     return a;
 713
 714   if (b->mach > a->mach)
 715     return b;
 716
 717   return a;
 718 }
 719
 720 /*
 721 INTERNAL_FUNCTION
 722         bfd_default_scan
 723
 724 SYNOPSIS
 725         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 726
 727 DESCRIPTION
 728         The default function for working out whether this is an
 729         architecture hit and a machine hit.
 730 */
 731
 732 boolean
 733 bfd_default_scan (info, string)
 734      const bfd_arch_info_type *info;
 735      const char *string;
 736 {
 737   const char *ptr_src;
 738   const char *ptr_tst;
 739   unsigned long number;
 740   enum bfd_architecture arch;
 741   const char *printable_name_colon;
 742
 743   /* Exact match of the architecture name (ARCH_NAME) and also the
 744      default architecture?  */
 745   if (strcasecmp (string, info->arch_name) == 0
 746       && info->the_default)
 747     return true;
 748
 749   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 750   if (strcasecmp (string, info->printable_name) == 0)
 751     return true;
 752
 753   /* Given that printable_name contains no colon, attempt to match:
 754      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 755   printable_name_colon = strchr (info->printable_name, ':');
 756   if (printable_name_colon == NULL)
 757     {
 758       size_t strlen_arch_name = strlen (info->arch_name);
 759       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 760         {
 761           if (string[strlen_arch_name] == ':')
 762             {
 763               if (strcasecmp (string + strlen_arch_name + 1,
 764                               info->printable_name) == 0)
 765                 return true;
 766             }
 767           else
 768             {
 769               if (strcasecmp (string + strlen_arch_name,
 770                               info->printable_name) == 0)
 771                 return true;
 772             }
 773         }
 774     }
 775
 776   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 777      Attempt to match: <arch> <mach>?  */
 778   if (printable_name_colon != NULL)
 779     {
 780       size_t colon_index = printable_name_colon - info->printable_name;
 781       if (strncasecmp (string, info->printable_name, colon_index) == 0
 782           && strcasecmp (string + colon_index,
 783                          info->printable_name + colon_index + 1) == 0)
 784         return true;
 785     }
 786
 787   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 788      attempt to match just <mach>, it could be ambigious.  This test
 789      is left until later.  */
 790
 791   /* NOTE: The below is retained for compatibility only.  Please do
 792      not add to this code.  */
 793
 794   /* See how much of the supplied string matches with the
 795      architecture, eg the string m68k:68020 would match the 68k entry
 796      up to the :, then we get left with the machine number.  */
 797
 798   for (ptr_src = string, ptr_tst = info->arch_name;
 799        *ptr_src && *ptr_tst;
 800        ptr_src++, ptr_tst++)
 801     {
 802       if (*ptr_src != *ptr_tst)
 803         break;
 804     }
 805
 806   /* Chewed up as much of the architecture as will match, skip any
 807      colons.  */
 808   if (*ptr_src == ':')
 809     ptr_src++;
 810
 811   if (*ptr_src == 0)
 812     {
 813       /* Nothing more, then only keep this one if it is the default
 814          machine for this architecture.  */
 815       return info->the_default;
 816     }
 817
 818   number = 0;
 819   while (ISDIGIT (*ptr_src))
 820     {
 821       number = number * 10 + *ptr_src - '0';
 822       ptr_src++;
 823     }
 824
 825   /* NOTE: The below is retained for compatibility only.
 826      PLEASE DO NOT ADD TO THIS CODE.  */
 827
 828   switch (number)
 829     {
 830       /* FIXME: These are needed to parse IEEE objects.  */
 831       /* The following seven case's are here only for compatibility with
 832          older binutils (at least IEEE objects from binutils 2.9.1 require
 833          them).  */
 834     case bfd_mach_m68000:
 835     case bfd_mach_m68010:
 836     case bfd_mach_m68020:
 837     case bfd_mach_m68030:
 838     case bfd_mach_m68040:
 839     case bfd_mach_m68060:
 840     case bfd_mach_cpu32:
 841       arch = bfd_arch_m68k;
 842       break;
 843     case 68000:
 844       arch = bfd_arch_m68k;
 845       number = bfd_mach_m68000;
 846       break;
 847     case 68010:
 848       arch = bfd_arch_m68k;
 849       number = bfd_mach_m68010;
 850       break;
 851     case 68020:
 852       arch = bfd_arch_m68k;
 853       number = bfd_mach_m68020;
 854       break;
 855     case 68030:
 856       arch = bfd_arch_m68k;
 857       number = bfd_mach_m68030;
 858       break;
 859     case 68040:
 860       arch = bfd_arch_m68k;
 861       number = bfd_mach_m68040;
 862       break;
 863     case 68060:
 864       arch = bfd_arch_m68k;
 865       number = bfd_mach_m68060;
 866       break;
 867     case 68332:
 868       arch = bfd_arch_m68k;
 869       number = bfd_mach_cpu32;
 870       break;
 871     case 5200:
 872       arch = bfd_arch_m68k;
 873       number = bfd_mach_mcf5200;
 874       break;
 875     case 5206:
 876       arch = bfd_arch_m68k;
 877       number = bfd_mach_mcf5206e;
 878       break;
 879     case 5307:
 880       arch = bfd_arch_m68k;
 881       number = bfd_mach_mcf5307;
 882       break;
 883     case 5407:
 884       arch = bfd_arch_m68k;
 885       number = bfd_mach_mcf5407;
 886       break;
 887
 888     case 32000:
 889       arch = bfd_arch_we32k;
 890       break;
 891
 892     case 3000:
 893       arch = bfd_arch_mips;
 894       number = bfd_mach_mips3000;
 895       break;
 896
 897     case 4000:
 898       arch = bfd_arch_mips;
 899       number = bfd_mach_mips4000;
 900       break;
 901
 902     case 6000:
 903       arch = bfd_arch_rs6000;
 904       break;
 905
 906     case 7410:
 907       arch = bfd_arch_sh;
 908       number = bfd_mach_sh_dsp;
 909       break;
 910
 911     case 7708:
 912       arch = bfd_arch_sh;
 913       number = bfd_mach_sh3;
 914       break;
 915
 916     case 7729:
 917       arch = bfd_arch_sh;
 918       number = bfd_mach_sh3_dsp;
 919       break;
 920
 921     case 7750:
 922       arch = bfd_arch_sh;
 923       number = bfd_mach_sh4;
 924       break;
 925
 926     default:
 927       return false;
 928     }
 929
 930   if (arch != info->arch)
 931     return false;
 932
 933   if (number != info->mach)
 934     return false;
 935
 936   return true;
 937 }
 938
 939 /*
 940 FUNCTION
 941         bfd_get_arch_info
 942
 943 SYNOPSIS
 944         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 945
 946 DESCRIPTION
 947         Return the architecture info struct in @var{abfd}.
 948 */
 949
 950 const bfd_arch_info_type *
 951 bfd_get_arch_info (abfd)
 952      bfd *abfd;
 953 {
 954   return abfd->arch_info;
 955 }
 956
 957 /*
 958 FUNCTION
 959         bfd_lookup_arch
 960
 961 SYNOPSIS
 962         const bfd_arch_info_type *bfd_lookup_arch
 963                 (enum bfd_architecture
 964                 arch,
 965                 unsigned long machine);
 966
 967 DESCRIPTION
 968         Look for the architecure info structure which matches the
 969         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 970         machine/architecture structure which marks itself as the
 971         default.
 972 */
 973
 974 const bfd_arch_info_type *
 975 bfd_lookup_arch (arch, machine)
 976      enum bfd_architecture arch;
 977      unsigned long machine;
 978 {
 979   const bfd_arch_info_type * const *app, *ap;
 980
 981   for (app = bfd_archures_list; *app != NULL; app++)
 982     {
 983       for (ap = *app; ap != NULL; ap = ap->next)
 984         {
 985           if (ap->arch == arch
 986               && (ap->mach == machine
 987                   || (machine == 0 && ap->the_default)))
 988             return ap;
 989         }
 990     }
 991
 992   return NULL;
 993 }
 994
 995 /*
 996 FUNCTION
 997         bfd_printable_arch_mach
 998
 999 SYNOPSIS
1000         const char *bfd_printable_arch_mach
1001                 (enum bfd_architecture arch, unsigned long machine);
1002
1003 DESCRIPTION
1004         Return a printable string representing the architecture and
1005         machine type.
1006
1007         This routine is depreciated.
1008 */
1009
1010 const char *
1011 bfd_printable_arch_mach (arch, machine)
1012      enum bfd_architecture arch;
1013      unsigned long machine;
1014 {
1015   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
1016
1017   if (ap)
1018     return ap->printable_name;
1019   return "UNKNOWN!";
1020 }
1021
1022 /*
1023 FUNCTION
1024         bfd_octets_per_byte
1025
1026 SYNOPSIS
1027         unsigned int bfd_octets_per_byte(bfd *abfd);
1028
1029 DESCRIPTION
1030         Return the number of octets (8-bit quantities) per target byte
1031         (minimum addressable unit).  In most cases, this will be one, but some
1032         DSP targets have 16, 32, or even 48 bits per byte.
1033 */
1034
1035 unsigned int
1036 bfd_octets_per_byte (abfd)
1037      bfd *abfd;
1038 {
1039   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1040                                         bfd_get_mach (abfd));
1041 }
1042
1043 /*
1044 FUNCTION
1045         bfd_arch_mach_octets_per_byte
1046
1047 SYNOPSIS
1048         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1049                                                    unsigned long machine);
1050
1051 DESCRIPTION
1052         See bfd_octets_per_byte.
1053
1054         This routine is provided for those cases where a bfd * is not
1055         available
1056 */
1057
1058 unsigned int
1059 bfd_arch_mach_octets_per_byte (arch, mach)
1060      enum bfd_architecture arch;
1061      unsigned long mach;
1062 {
1063   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1064
1065   if (ap)
1066     return ap->bits_per_byte / 8;
1067   return 1;
1068 }