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, 2002
   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_or32,      {* OpenRISC 32 *}
 107 .
 108 .  bfd_arch_a29k,      {* AMD 29000 *}
 109 .  bfd_arch_sparc,     {* SPARC *}
 110 .#define bfd_mach_sparc                 1
 111 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env.  *}
 112 .#define bfd_mach_sparc_sparclet        2
 113 .#define bfd_mach_sparc_sparclite       3
 114 .#define bfd_mach_sparc_v8plus          4
 115 .#define bfd_mach_sparc_v8plusa         5 {* with ultrasparc add'ns.  *}
 116 .#define bfd_mach_sparc_sparclite_le    6
 117 .#define bfd_mach_sparc_v9              7
 118 .#define bfd_mach_sparc_v9a             8 {* with ultrasparc add'ns.  *}
 119 .#define bfd_mach_sparc_v8plusb         9 {* with cheetah add'ns.  *}
 120 .#define bfd_mach_sparc_v9b             10 {* with cheetah add'ns.  *}
 121 .{* Nonzero if MACH has the v9 instruction set.  *}
 122 .#define bfd_mach_sparc_v9_p(mach) \
 123 .  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
 124 .   && (mach) != bfd_mach_sparc_sparclite_le)
 125 .  bfd_arch_mips,      {* MIPS Rxxxx *}
 126 .#define bfd_mach_mips3000              3000
 127 .#define bfd_mach_mips3900              3900
 128 .#define bfd_mach_mips4000              4000
 129 .#define bfd_mach_mips4010              4010
 130 .#define bfd_mach_mips4100              4100
 131 .#define bfd_mach_mips4111              4111
 132 .#define bfd_mach_mips4120              4120
 133 .#define bfd_mach_mips4300              4300
 134 .#define bfd_mach_mips4400              4400
 135 .#define bfd_mach_mips4600              4600
 136 .#define bfd_mach_mips4650              4650
 137 .#define bfd_mach_mips5000              5000
 138 .#define bfd_mach_mips5400              5400
 139 .#define bfd_mach_mips5500              5500
 140 .#define bfd_mach_mips6000              6000
 141 .#define bfd_mach_mips8000              8000
 142 .#define bfd_mach_mips10000             10000
 143 .#define bfd_mach_mips12000             12000
 144 .#define bfd_mach_mips16                16
 145 .#define bfd_mach_mips5                 5
 146 .#define bfd_mach_mips_sb1              12310201 {* octal 'SB', 01 *}
 147 .#define bfd_mach_mipsisa32             32
 148 .#define bfd_mach_mipsisa64             64
 149 .  bfd_arch_i386,      {* Intel 386 *}
 150 .#define bfd_mach_i386_i386 1
 151 .#define bfd_mach_i386_i8086 2
 152 .#define bfd_mach_i386_i386_intel_syntax 3
 153 .#define bfd_mach_x86_64 64
 154 .#define bfd_mach_x86_64_intel_syntax 65
 155 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 156 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 157 .  bfd_arch_i860,      {* Intel 860 *}
 158 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 159 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 160 .  bfd_arch_alliant,   {* Alliant *}
 161 .  bfd_arch_convex,    {* Convex *}
 162 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 163 .  bfd_arch_m98k,      {* Motorola 98xxx *}
 164 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 165 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 166 .#define bfd_mach_h8300   1
 167 .#define bfd_mach_h8300h  2
 168 .#define bfd_mach_h8300s  3
 169 .  bfd_arch_pdp11,     {* DEC PDP-11 *}
 170 .  bfd_arch_powerpc,   {* PowerPC *}
 171 .#define bfd_mach_ppc           32
 172 .#define bfd_mach_ppc64         64
 173 .#define bfd_mach_ppc_403       403
 174 .#define bfd_mach_ppc_403gc     4030
 175 .#define bfd_mach_ppc_505       505
 176 .#define bfd_mach_ppc_601       601
 177 .#define bfd_mach_ppc_602       602
 178 .#define bfd_mach_ppc_603       603
 179 .#define bfd_mach_ppc_ec603e    6031
 180 .#define bfd_mach_ppc_604       604
 181 .#define bfd_mach_ppc_620       620
 182 .#define bfd_mach_ppc_630       630
 183 .#define bfd_mach_ppc_750       750
 184 .#define bfd_mach_ppc_860       860
 185 .#define bfd_mach_ppc_a35       35
 186 .#define bfd_mach_ppc_rs64ii    642
 187 .#define bfd_mach_ppc_rs64iii   643
 188 .#define bfd_mach_ppc_7400      7400
 189 .#define bfd_mach_ppc_e500      500
 190 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 191 .#define bfd_mach_rs6k          6000
 192 .#define bfd_mach_rs6k_rs1      6001
 193 .#define bfd_mach_rs6k_rsc      6003
 194 .#define bfd_mach_rs6k_rs2      6002
 195 .  bfd_arch_hppa,      {* HP PA RISC *}
 196 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 197 .#define bfd_mach_d10v          1
 198 .#define bfd_mach_d10v_ts2      2
 199 .#define bfd_mach_d10v_ts3      3
 200 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 201 .  bfd_arch_dlx,       {* DLX *}
 202 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 203 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 204 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 205 .#define bfd_mach_z8001         1
 206 .#define bfd_mach_z8002         2
 207 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 208 .  bfd_arch_sh,        {* Hitachi SH *}
 209 .#define bfd_mach_sh            1
 210 .#define bfd_mach_sh2        0x20
 211 .#define bfd_mach_sh_dsp     0x2d
 212 .#define bfd_mach_sh3        0x30
 213 .#define bfd_mach_sh3_dsp    0x3d
 214 .#define bfd_mach_sh3e       0x3e
 215 .#define bfd_mach_sh4        0x40
 216 .#define bfd_mach_sh5        0x50
 217 .  bfd_arch_alpha,     {* Dec Alpha *}
 218 .#define bfd_mach_alpha_ev4  0x10
 219 .#define bfd_mach_alpha_ev5  0x20
 220 .#define bfd_mach_alpha_ev6  0x30
 221 .  bfd_arch_arm,       {* Advanced Risc Machines ARM.  *}
 222 .#define bfd_mach_arm_2         1
 223 .#define bfd_mach_arm_2a        2
 224 .#define bfd_mach_arm_3         3
 225 .#define bfd_mach_arm_3M        4
 226 .#define bfd_mach_arm_4         5
 227 .#define bfd_mach_arm_4T        6
 228 .#define bfd_mach_arm_5         7
 229 .#define bfd_mach_arm_5T        8
 230 .#define bfd_mach_arm_5TE       9
 231 .#define bfd_mach_arm_XScale    10
 232 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 233 .  bfd_arch_w65,       {* WDC 65816 *}
 234 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 235 .  bfd_arch_tic4x,     {* Texas Instruments TMS320C3X/4X *}
 236 .#define bfd_mach_c3x           30
 237 .#define bfd_mach_c4x           40
 238 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 239 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 240 .  bfd_arch_v850,      {* NEC V850 *}
 241 .#define bfd_mach_v850          1
 242 .#define bfd_mach_v850e         'E'
 243 .  bfd_arch_arc,       {* ARC Cores *}
 244 .#define bfd_mach_arc_5         5
 245 .#define bfd_mach_arc_6         6
 246 .#define bfd_mach_arc_7         7
 247 .#define bfd_mach_arc_8         8
 248 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 249 .#define bfd_mach_m32r          1 {* For backwards compatibility.  *}
 250 .#define bfd_mach_m32rx         'x'
 251 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 252 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 253 .#define bfd_mach_mn10300               300
 254 .#define bfd_mach_am33          330
 255 .  bfd_arch_fr30,
 256 .#define bfd_mach_fr30          0x46523330
 257 .  bfd_arch_frv,
 258 .#define bfd_mach_frv           1
 259 .#define bfd_mach_frvsimple     2
 260 .#define bfd_mach_fr300         300
 261 .#define bfd_mach_fr400         400
 262 .#define bfd_mach_frvtomcat     499     {* fr500 prototype *}
 263 .#define bfd_mach_fr500         500
 264 .  bfd_arch_mcore,
 265 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 266 .#define bfd_mach_ia64_elf64    64
 267 .#define bfd_mach_ia64_elf32    32
 268 .  bfd_arch_ip2k,      {* Ubicom IP2K microcontrollers. *}
 269 .#define bfd_mach_ip2022        1
 270 .#define bfd_mach_ip2022ext     2
 271 .  bfd_arch_pj,
 272 .  bfd_arch_avr,       {* Atmel AVR microcontrollers.  *}
 273 .#define bfd_mach_avr1          1
 274 .#define bfd_mach_avr2          2
 275 .#define bfd_mach_avr3          3
 276 .#define bfd_mach_avr4          4
 277 .#define bfd_mach_avr5          5
 278 .  bfd_arch_cris,      {* Axis CRIS *}
 279 .  bfd_arch_s390,      {* IBM s390 *}
 280 .#define bfd_mach_s390_31       31
 281 .#define bfd_mach_s390_64       64
 282 .  bfd_arch_openrisc,  {* OpenRISC *}
 283 .  bfd_arch_mmix,      {* Donald Knuth's educational processor.  *}
 284 .  bfd_arch_xstormy16,
 285 .#define bfd_mach_xstormy16     1
 286 .  bfd_arch_last
 287 .  };
 288 */
 289
 290 /*
 291 SUBSECTION
 292         bfd_arch_info
 293
 294 DESCRIPTION
 295         This structure contains information on architectures for use
 296         within BFD.
 297
 298 .
 299 .typedef struct bfd_arch_info
 300 .{
 301 .  int bits_per_word;
 302 .  int bits_per_address;
 303 .  int bits_per_byte;
 304 .  enum bfd_architecture arch;
 305 .  unsigned long mach;
 306 .  const char *arch_name;
 307 .  const char *printable_name;
 308 .  unsigned int section_align_power;
 309 .  {* True if this is the default machine for the architecture.
 310 .     The default arch should be the first entry for an arch so that
 311 .     all the entries for that arch can be accessed via <<next>>.  *}
 312 .  boolean the_default;
 313 .  const struct bfd_arch_info * (*compatible)
 314 .       PARAMS ((const struct bfd_arch_info *a,
 315 .                const struct bfd_arch_info *b));
 316 .
 317 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 318 .
 319 .  const struct bfd_arch_info *next;
 320 .}
 321 .bfd_arch_info_type;
 322 .
 323 */
 324
 325 extern const bfd_arch_info_type bfd_a29k_arch;
 326 extern const bfd_arch_info_type bfd_alpha_arch;
 327 extern const bfd_arch_info_type bfd_arc_arch;
 328 extern const bfd_arch_info_type bfd_arm_arch;
 329 extern const bfd_arch_info_type bfd_avr_arch;
 330 extern const bfd_arch_info_type bfd_cris_arch;
 331 extern const bfd_arch_info_type bfd_d10v_arch;
 332 extern const bfd_arch_info_type bfd_d30v_arch;
 333 extern const bfd_arch_info_type bfd_dlx_arch;
 334 extern const bfd_arch_info_type bfd_fr30_arch;
 335 extern const bfd_arch_info_type bfd_frv_arch;
 336 extern const bfd_arch_info_type bfd_h8300_arch;
 337 extern const bfd_arch_info_type bfd_h8500_arch;
 338 extern const bfd_arch_info_type bfd_hppa_arch;
 339 extern const bfd_arch_info_type bfd_i370_arch;
 340 extern const bfd_arch_info_type bfd_i386_arch;
 341 extern const bfd_arch_info_type bfd_i860_arch;
 342 extern const bfd_arch_info_type bfd_i960_arch;
 343 extern const bfd_arch_info_type bfd_ia64_arch;
 344 extern const bfd_arch_info_type bfd_ip2k_arch;
 345 extern const bfd_arch_info_type bfd_m32r_arch;
 346 extern const bfd_arch_info_type bfd_m68hc11_arch;
 347 extern const bfd_arch_info_type bfd_m68hc12_arch;
 348 extern const bfd_arch_info_type bfd_m68k_arch;
 349 extern const bfd_arch_info_type bfd_m88k_arch;
 350 extern const bfd_arch_info_type bfd_mcore_arch;
 351 extern const bfd_arch_info_type bfd_mips_arch;
 352 extern const bfd_arch_info_type bfd_mmix_arch;
 353 extern const bfd_arch_info_type bfd_mn10200_arch;
 354 extern const bfd_arch_info_type bfd_mn10300_arch;
 355 extern const bfd_arch_info_type bfd_ns32k_arch;
 356 extern const bfd_arch_info_type bfd_openrisc_arch;
 357 extern const bfd_arch_info_type bfd_or32_arch;
 358 extern const bfd_arch_info_type bfd_pdp11_arch;
 359 extern const bfd_arch_info_type bfd_pj_arch;
 360 extern const bfd_arch_info_type bfd_powerpc_archs[];
 361 #define bfd_powerpc_arch bfd_powerpc_archs[0]
 362 extern const bfd_arch_info_type bfd_rs6000_arch;
 363 extern const bfd_arch_info_type bfd_s390_arch;
 364 extern const bfd_arch_info_type bfd_sh_arch;
 365 extern const bfd_arch_info_type bfd_sparc_arch;
 366 extern const bfd_arch_info_type bfd_tic30_arch;
 367 extern const bfd_arch_info_type bfd_tic4x_arch;
 368 extern const bfd_arch_info_type bfd_tic54x_arch;
 369 extern const bfd_arch_info_type bfd_tic80_arch;
 370 extern const bfd_arch_info_type bfd_v850_arch;
 371 extern const bfd_arch_info_type bfd_vax_arch;
 372 extern const bfd_arch_info_type bfd_we32k_arch;
 373 extern const bfd_arch_info_type bfd_w65_arch;
 374 extern const bfd_arch_info_type bfd_xstormy16_arch;
 375 extern const bfd_arch_info_type bfd_z8k_arch;
 376
 377 static const bfd_arch_info_type * const bfd_archures_list[] =
 378   {
 379 #ifdef SELECT_ARCHITECTURES
 380     SELECT_ARCHITECTURES,
 381 #else
 382     &bfd_a29k_arch,
 383     &bfd_alpha_arch,
 384     &bfd_arc_arch,
 385     &bfd_arm_arch,
 386     &bfd_avr_arch,
 387     &bfd_cris_arch,
 388     &bfd_d10v_arch,
 389     &bfd_d30v_arch,
 390     &bfd_dlx_arch,
 391     &bfd_fr30_arch,
 392     &bfd_frv_arch,
 393     &bfd_h8300_arch,
 394     &bfd_h8500_arch,
 395     &bfd_hppa_arch,
 396     &bfd_i370_arch,
 397     &bfd_i386_arch,
 398     &bfd_i860_arch,
 399     &bfd_i960_arch,
 400     &bfd_ia64_arch,
 401     &bfd_ip2k_arch,
 402     &bfd_m32r_arch,
 403     &bfd_m68hc11_arch,
 404     &bfd_m68hc12_arch,
 405     &bfd_m68k_arch,
 406     &bfd_m88k_arch,
 407     &bfd_mcore_arch,
 408     &bfd_mips_arch,
 409     &bfd_mmix_arch,
 410     &bfd_mn10200_arch,
 411     &bfd_mn10300_arch,
 412     &bfd_ns32k_arch,
 413     &bfd_openrisc_arch,
 414     &bfd_or32_arch,
 415     &bfd_pdp11_arch,
 416     &bfd_powerpc_arch,
 417     &bfd_rs6000_arch,
 418     &bfd_s390_arch,
 419     &bfd_sh_arch,
 420     &bfd_sparc_arch,
 421     &bfd_tic30_arch,
 422     &bfd_tic4x_arch,
 423     &bfd_tic54x_arch,
 424     &bfd_tic80_arch,
 425     &bfd_v850_arch,
 426     &bfd_vax_arch,
 427     &bfd_w65_arch,
 428     &bfd_we32k_arch,
 429     &bfd_xstormy16_arch,
 430     &bfd_z8k_arch,
 431 #endif
 432   0
 433 };
 434
 435 /*
 436 FUNCTION
 437         bfd_printable_name
 438
 439 SYNOPSIS
 440         const char *bfd_printable_name(bfd *abfd);
 441
 442 DESCRIPTION
 443         Return a printable string representing the architecture and machine
 444         from the pointer to the architecture info structure.
 445
 446 */
 447
 448 const char *
 449 bfd_printable_name (abfd)
 450      bfd *abfd;
 451 {
 452   return abfd->arch_info->printable_name;
 453 }
 454
 455 /*
 456 FUNCTION
 457         bfd_scan_arch
 458
 459 SYNOPSIS
 460         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 461
 462 DESCRIPTION
 463         Figure out if BFD supports any cpu which could be described with
 464         the name @var{string}.  Return a pointer to an <<arch_info>>
 465         structure if a machine is found, otherwise NULL.
 466 */
 467
 468 const bfd_arch_info_type *
 469 bfd_scan_arch (string)
 470      const char *string;
 471 {
 472   const bfd_arch_info_type * const *app, *ap;
 473
 474   /* Look through all the installed architectures.  */
 475   for (app = bfd_archures_list; *app != NULL; app++)
 476     {
 477       for (ap = *app; ap != NULL; ap = ap->next)
 478         {
 479           if (ap->scan (ap, string))
 480             return ap;
 481         }
 482     }
 483
 484   return NULL;
 485 }
 486
 487 /*
 488 FUNCTION
 489         bfd_arch_list
 490
 491 SYNOPSIS
 492         const char **bfd_arch_list(void);
 493
 494 DESCRIPTION
 495         Return a freshly malloced NULL-terminated vector of the names
 496         of all the valid BFD architectures.  Do not modify the names.
 497 */
 498
 499 const char **
 500 bfd_arch_list ()
 501 {
 502   int vec_length = 0;
 503   const char **name_ptr;
 504   const char **name_list;
 505   const bfd_arch_info_type * const *app;
 506   bfd_size_type amt;
 507
 508   /* Determine the number of architectures.  */
 509   vec_length = 0;
 510   for (app = bfd_archures_list; *app != NULL; app++)
 511     {
 512       const bfd_arch_info_type *ap;
 513       for (ap = *app; ap != NULL; ap = ap->next)
 514         {
 515           vec_length++;
 516         }
 517     }
 518
 519   amt = (vec_length + 1) * sizeof (char **);
 520   name_list = (const char **) bfd_malloc (amt);
 521   if (name_list == NULL)
 522     return NULL;
 523
 524   /* Point the list at each of the names.  */
 525   name_ptr = name_list;
 526   for (app = bfd_archures_list; *app != NULL; app++)
 527     {
 528       const bfd_arch_info_type *ap;
 529       for (ap = *app; ap != NULL; ap = ap->next)
 530         {
 531           *name_ptr = ap->printable_name;
 532           name_ptr++;
 533         }
 534     }
 535   *name_ptr = NULL;
 536
 537   return name_list;
 538 }
 539
 540 /*
 541 FUNCTION
 542         bfd_arch_get_compatible
 543
 544 SYNOPSIS
 545         const bfd_arch_info_type *bfd_arch_get_compatible(
 546                 const bfd *abfd,
 547                 const bfd *bbfd);
 548
 549 DESCRIPTION
 550         Determine whether two BFDs'
 551         architectures and machine types are compatible.  Calculates
 552         the lowest common denominator between the two architectures
 553         and machine types implied by the BFDs and returns a pointer to
 554         an <<arch_info>> structure describing the compatible machine.
 555 */
 556
 557 const bfd_arch_info_type *
 558 bfd_arch_get_compatible (abfd, bbfd)
 559      const bfd *abfd;
 560      const bfd *bbfd;
 561 {
 562   /* If either architecture is unknown, then all we can do is assume
 563      the user knows what he's doing.  */
 564   if (abfd->arch_info->arch == bfd_arch_unknown)
 565     return bbfd->arch_info;
 566   if (bbfd->arch_info->arch == bfd_arch_unknown)
 567     return abfd->arch_info;
 568
 569   /* Otherwise architecture-specific code has to decide.  */
 570   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 571 }
 572
 573 /*
 574 INTERNAL_DEFINITION
 575         bfd_default_arch_struct
 576
 577 DESCRIPTION
 578         The <<bfd_default_arch_struct>> is an item of
 579         <<bfd_arch_info_type>> which has been initialized to a fairly
 580         generic state.  A BFD starts life by pointing to this
 581         structure, until the correct back end has determined the real
 582         architecture of the file.
 583
 584 .extern const bfd_arch_info_type bfd_default_arch_struct;
 585 */
 586
 587 const bfd_arch_info_type bfd_default_arch_struct = {
 588   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 589   bfd_default_compatible,
 590   bfd_default_scan,
 591   0,
 592 };
 593
 594 /*
 595 FUNCTION
 596         bfd_set_arch_info
 597
 598 SYNOPSIS
 599         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 600
 601 DESCRIPTION
 602         Set the architecture info of @var{abfd} to @var{arg}.
 603 */
 604
 605 void
 606 bfd_set_arch_info (abfd, arg)
 607      bfd *abfd;
 608      const bfd_arch_info_type *arg;
 609 {
 610   abfd->arch_info = arg;
 611 }
 612
 613 /*
 614 INTERNAL_FUNCTION
 615         bfd_default_set_arch_mach
 616
 617 SYNOPSIS
 618         boolean bfd_default_set_arch_mach(bfd *abfd,
 619                 enum bfd_architecture arch,
 620                 unsigned long mach);
 621
 622 DESCRIPTION
 623         Set the architecture and machine type in BFD @var{abfd}
 624         to @var{arch} and @var{mach}.  Find the correct
 625         pointer to a structure and insert it into the <<arch_info>>
 626         pointer.
 627 */
 628
 629 boolean
 630 bfd_default_set_arch_mach (abfd, arch, mach)
 631      bfd *abfd;
 632      enum bfd_architecture arch;
 633      unsigned long mach;
 634 {
 635   abfd->arch_info = bfd_lookup_arch (arch, mach);
 636   if (abfd->arch_info != NULL)
 637     return true;
 638
 639   abfd->arch_info = &bfd_default_arch_struct;
 640   bfd_set_error (bfd_error_bad_value);
 641   return false;
 642 }
 643
 644 /*
 645 FUNCTION
 646         bfd_get_arch
 647
 648 SYNOPSIS
 649         enum bfd_architecture bfd_get_arch(bfd *abfd);
 650
 651 DESCRIPTION
 652         Return the enumerated type which describes the BFD @var{abfd}'s
 653         architecture.
 654 */
 655
 656 enum bfd_architecture
 657 bfd_get_arch (abfd)
 658      bfd *abfd;
 659 {
 660   return abfd->arch_info->arch;
 661 }
 662
 663 /*
 664 FUNCTION
 665         bfd_get_mach
 666
 667 SYNOPSIS
 668         unsigned long bfd_get_mach(bfd *abfd);
 669
 670 DESCRIPTION
 671         Return the long type which describes the BFD @var{abfd}'s
 672         machine.
 673 */
 674
 675 unsigned long
 676 bfd_get_mach (abfd)
 677      bfd *abfd;
 678 {
 679   return abfd->arch_info->mach;
 680 }
 681
 682 /*
 683 FUNCTION
 684         bfd_arch_bits_per_byte
 685
 686 SYNOPSIS
 687         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 688
 689 DESCRIPTION
 690         Return the number of bits in one of the BFD @var{abfd}'s
 691         architecture's bytes.
 692 */
 693
 694 unsigned int
 695 bfd_arch_bits_per_byte (abfd)
 696      bfd *abfd;
 697 {
 698   return abfd->arch_info->bits_per_byte;
 699 }
 700
 701 /*
 702 FUNCTION
 703         bfd_arch_bits_per_address
 704
 705 SYNOPSIS
 706         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 707
 708 DESCRIPTION
 709         Return the number of bits in one of the BFD @var{abfd}'s
 710         architecture's addresses.
 711 */
 712
 713 unsigned int
 714 bfd_arch_bits_per_address (abfd)
 715      bfd *abfd;
 716 {
 717   return abfd->arch_info->bits_per_address;
 718 }
 719
 720 /*
 721 INTERNAL_FUNCTION
 722         bfd_default_compatible
 723
 724 SYNOPSIS
 725         const bfd_arch_info_type *bfd_default_compatible
 726         (const bfd_arch_info_type *a,
 727         const bfd_arch_info_type *b);
 728
 729 DESCRIPTION
 730         The default function for testing for compatibility.
 731 */
 732
 733 const bfd_arch_info_type *
 734 bfd_default_compatible (a, b)
 735      const bfd_arch_info_type *a;
 736      const bfd_arch_info_type *b;
 737 {
 738   if (a->arch != b->arch)
 739     return NULL;
 740
 741   if (a->bits_per_word != b->bits_per_word)
 742     return NULL;
 743
 744   if (a->mach > b->mach)
 745     return a;
 746
 747   if (b->mach > a->mach)
 748     return b;
 749
 750   return a;
 751 }
 752
 753 /*
 754 INTERNAL_FUNCTION
 755         bfd_default_scan
 756
 757 SYNOPSIS
 758         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 759
 760 DESCRIPTION
 761         The default function for working out whether this is an
 762         architecture hit and a machine hit.
 763 */
 764
 765 boolean
 766 bfd_default_scan (info, string)
 767      const bfd_arch_info_type *info;
 768      const char *string;
 769 {
 770   const char *ptr_src;
 771   const char *ptr_tst;
 772   unsigned long number;
 773   enum bfd_architecture arch;
 774   const char *printable_name_colon;
 775
 776   /* Exact match of the architecture name (ARCH_NAME) and also the
 777      default architecture?  */
 778   if (strcasecmp (string, info->arch_name) == 0
 779       && info->the_default)
 780     return true;
 781
 782   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 783   if (strcasecmp (string, info->printable_name) == 0)
 784     return true;
 785
 786   /* Given that printable_name contains no colon, attempt to match:
 787      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 788   printable_name_colon = strchr (info->printable_name, ':');
 789   if (printable_name_colon == NULL)
 790     {
 791       size_t strlen_arch_name = strlen (info->arch_name);
 792       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 793         {
 794           if (string[strlen_arch_name] == ':')
 795             {
 796               if (strcasecmp (string + strlen_arch_name + 1,
 797                               info->printable_name) == 0)
 798                 return true;
 799             }
 800           else
 801             {
 802               if (strcasecmp (string + strlen_arch_name,
 803                               info->printable_name) == 0)
 804                 return true;
 805             }
 806         }
 807     }
 808
 809   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 810      Attempt to match: <arch> <mach>?  */
 811   if (printable_name_colon != NULL)
 812     {
 813       size_t colon_index = printable_name_colon - info->printable_name;
 814       if (strncasecmp (string, info->printable_name, colon_index) == 0
 815           && strcasecmp (string + colon_index,
 816                          info->printable_name + colon_index + 1) == 0)
 817         return true;
 818     }
 819
 820   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 821      attempt to match just <mach>, it could be ambigious.  This test
 822      is left until later.  */
 823
 824   /* NOTE: The below is retained for compatibility only.  Please do
 825      not add to this code.  */
 826
 827   /* See how much of the supplied string matches with the
 828      architecture, eg the string m68k:68020 would match the 68k entry
 829      up to the :, then we get left with the machine number.  */
 830
 831   for (ptr_src = string, ptr_tst = info->arch_name;
 832        *ptr_src && *ptr_tst;
 833        ptr_src++, ptr_tst++)
 834     {
 835       if (*ptr_src != *ptr_tst)
 836         break;
 837     }
 838
 839   /* Chewed up as much of the architecture as will match, skip any
 840      colons.  */
 841   if (*ptr_src == ':')
 842     ptr_src++;
 843
 844   if (*ptr_src == 0)
 845     {
 846       /* Nothing more, then only keep this one if it is the default
 847          machine for this architecture.  */
 848       return info->the_default;
 849     }
 850
 851   number = 0;
 852   while (ISDIGIT (*ptr_src))
 853     {
 854       number = number * 10 + *ptr_src - '0';
 855       ptr_src++;
 856     }
 857
 858   /* NOTE: The below is retained for compatibility only.
 859      PLEASE DO NOT ADD TO THIS CODE.  */
 860
 861   switch (number)
 862     {
 863       /* FIXME: These are needed to parse IEEE objects.  */
 864       /* The following seven case's are here only for compatibility with
 865          older binutils (at least IEEE objects from binutils 2.9.1 require
 866          them).  */
 867     case bfd_mach_m68000:
 868     case bfd_mach_m68010:
 869     case bfd_mach_m68020:
 870     case bfd_mach_m68030:
 871     case bfd_mach_m68040:
 872     case bfd_mach_m68060:
 873     case bfd_mach_cpu32:
 874       arch = bfd_arch_m68k;
 875       break;
 876     case 68000:
 877       arch = bfd_arch_m68k;
 878       number = bfd_mach_m68000;
 879       break;
 880     case 68010:
 881       arch = bfd_arch_m68k;
 882       number = bfd_mach_m68010;
 883       break;
 884     case 68020:
 885       arch = bfd_arch_m68k;
 886       number = bfd_mach_m68020;
 887       break;
 888     case 68030:
 889       arch = bfd_arch_m68k;
 890       number = bfd_mach_m68030;
 891       break;
 892     case 68040:
 893       arch = bfd_arch_m68k;
 894       number = bfd_mach_m68040;
 895       break;
 896     case 68060:
 897       arch = bfd_arch_m68k;
 898       number = bfd_mach_m68060;
 899       break;
 900     case 68332:
 901       arch = bfd_arch_m68k;
 902       number = bfd_mach_cpu32;
 903       break;
 904     case 5200:
 905       arch = bfd_arch_m68k;
 906       number = bfd_mach_mcf5200;
 907       break;
 908     case 5206:
 909       arch = bfd_arch_m68k;
 910       number = bfd_mach_mcf5206e;
 911       break;
 912     case 5307:
 913       arch = bfd_arch_m68k;
 914       number = bfd_mach_mcf5307;
 915       break;
 916     case 5407:
 917       arch = bfd_arch_m68k;
 918       number = bfd_mach_mcf5407;
 919       break;
 920
 921     case 32000:
 922       arch = bfd_arch_we32k;
 923       break;
 924
 925     case 3000:
 926       arch = bfd_arch_mips;
 927       number = bfd_mach_mips3000;
 928       break;
 929
 930     case 4000:
 931       arch = bfd_arch_mips;
 932       number = bfd_mach_mips4000;
 933       break;
 934
 935     case 6000:
 936       arch = bfd_arch_rs6000;
 937       break;
 938
 939     case 7410:
 940       arch = bfd_arch_sh;
 941       number = bfd_mach_sh_dsp;
 942       break;
 943
 944     case 7708:
 945       arch = bfd_arch_sh;
 946       number = bfd_mach_sh3;
 947       break;
 948
 949     case 7729:
 950       arch = bfd_arch_sh;
 951       number = bfd_mach_sh3_dsp;
 952       break;
 953
 954     case 7750:
 955       arch = bfd_arch_sh;
 956       number = bfd_mach_sh4;
 957       break;
 958
 959     default:
 960       return false;
 961     }
 962
 963   if (arch != info->arch)
 964     return false;
 965
 966   if (number != info->mach)
 967     return false;
 968
 969   return true;
 970 }
 971
 972 /*
 973 FUNCTION
 974         bfd_get_arch_info
 975
 976 SYNOPSIS
 977         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 978
 979 DESCRIPTION
 980         Return the architecture info struct in @var{abfd}.
 981 */
 982
 983 const bfd_arch_info_type *
 984 bfd_get_arch_info (abfd)
 985      bfd *abfd;
 986 {
 987   return abfd->arch_info;
 988 }
 989
 990 /*
 991 FUNCTION
 992         bfd_lookup_arch
 993
 994 SYNOPSIS
 995         const bfd_arch_info_type *bfd_lookup_arch
 996                 (enum bfd_architecture
 997                 arch,
 998                 unsigned long machine);
 999
1000 DESCRIPTION
1001         Look for the architecure info structure which matches the
1002         arguments @var{arch} and @var{machine}. A machine of 0 matches the
1003         machine/architecture structure which marks itself as the
1004         default.
1005 */
1006
1007 const bfd_arch_info_type *
1008 bfd_lookup_arch (arch, machine)
1009      enum bfd_architecture arch;
1010      unsigned long machine;
1011 {
1012   const bfd_arch_info_type * const *app, *ap;
1013
1014   for (app = bfd_archures_list; *app != NULL; app++)
1015     {
1016       for (ap = *app; ap != NULL; ap = ap->next)
1017         {
1018           if (ap->arch == arch
1019               && (ap->mach == machine
1020                   || (machine == 0 && ap->the_default)))
1021             return ap;
1022         }
1023     }
1024
1025   return NULL;
1026 }
1027
1028 /*
1029 FUNCTION
1030         bfd_printable_arch_mach
1031
1032 SYNOPSIS
1033         const char *bfd_printable_arch_mach
1034                 (enum bfd_architecture arch, unsigned long machine);
1035
1036 DESCRIPTION
1037         Return a printable string representing the architecture and
1038         machine type.
1039
1040         This routine is depreciated.
1041 */
1042
1043 const char *
1044 bfd_printable_arch_mach (arch, machine)
1045      enum bfd_architecture arch;
1046      unsigned long machine;
1047 {
1048   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
1049
1050   if (ap)
1051     return ap->printable_name;
1052   return "UNKNOWN!";
1053 }
1054
1055 /*
1056 FUNCTION
1057         bfd_octets_per_byte
1058
1059 SYNOPSIS
1060         unsigned int bfd_octets_per_byte(bfd *abfd);
1061
1062 DESCRIPTION
1063         Return the number of octets (8-bit quantities) per target byte
1064         (minimum addressable unit).  In most cases, this will be one, but some
1065         DSP targets have 16, 32, or even 48 bits per byte.
1066 */
1067
1068 unsigned int
1069 bfd_octets_per_byte (abfd)
1070      bfd *abfd;
1071 {
1072   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1073                                         bfd_get_mach (abfd));
1074 }
1075
1076 /*
1077 FUNCTION
1078         bfd_arch_mach_octets_per_byte
1079
1080 SYNOPSIS
1081         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1082                                                    unsigned long machine);
1083
1084 DESCRIPTION
1085         See bfd_octets_per_byte.
1086
1087         This routine is provided for those cases where a bfd * is not
1088         available
1089 */
1090
1091 unsigned int
1092 bfd_arch_mach_octets_per_byte (arch, mach)
1093      enum bfd_architecture arch;
1094      unsigned long mach;
1095 {
1096   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1097
1098   if (ap)
1099     return ap->bits_per_byte / 8;
1100   return 1;
1101 }