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_mips4300              4300
 133 .#define bfd_mach_mips4400              4400
 134 .#define bfd_mach_mips4600              4600
 135 .#define bfd_mach_mips4650              4650
 136 .#define bfd_mach_mips5000              5000
 137 .#define bfd_mach_mips6000              6000
 138 .#define bfd_mach_mips8000              8000
 139 .#define bfd_mach_mips10000             10000
 140 .#define bfd_mach_mips12000             12000
 141 .#define bfd_mach_mips16                16
 142 .#define bfd_mach_mips5                 5
 143 .#define bfd_mach_mips_sb1              12310201 {* octal 'SB', 01 *}
 144 .#define bfd_mach_mipsisa32             32
 145 .#define bfd_mach_mipsisa64             64
 146 .  bfd_arch_i386,      {* Intel 386 *}
 147 .#define bfd_mach_i386_i386 0
 148 .#define bfd_mach_i386_i8086 1
 149 .#define bfd_mach_i386_i386_intel_syntax 2
 150 .#define bfd_mach_x86_64 3
 151 .#define bfd_mach_x86_64_intel_syntax 4
 152 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 153 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 154 .  bfd_arch_i860,      {* Intel 860 *}
 155 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 156 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 157 .  bfd_arch_alliant,   {* Alliant *}
 158 .  bfd_arch_convex,    {* Convex *}
 159 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 160 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 161 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 162 .#define bfd_mach_h8300   1
 163 .#define bfd_mach_h8300h  2
 164 .#define bfd_mach_h8300s  3
 165 .  bfd_arch_pdp11,     {* DEC PDP-11 *}
 166 .  bfd_arch_powerpc,   {* PowerPC *}
 167 .#define bfd_mach_ppc           0
 168 .#define bfd_mach_ppc64         1
 169 .#define bfd_mach_ppc_403       403
 170 .#define bfd_mach_ppc_403gc     4030
 171 .#define bfd_mach_ppc_505       505
 172 .#define bfd_mach_ppc_601       601
 173 .#define bfd_mach_ppc_602       602
 174 .#define bfd_mach_ppc_603       603
 175 .#define bfd_mach_ppc_ec603e    6031
 176 .#define bfd_mach_ppc_604       604
 177 .#define bfd_mach_ppc_620       620
 178 .#define bfd_mach_ppc_630       630
 179 .#define bfd_mach_ppc_750       750
 180 .#define bfd_mach_ppc_860       860
 181 .#define bfd_mach_ppc_a35       35
 182 .#define bfd_mach_ppc_rs64ii    642
 183 .#define bfd_mach_ppc_rs64iii   643
 184 .#define bfd_mach_ppc_7400      7400
 185 .#define bfd_mach_ppc_e500      500
 186 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 187 .#define bfd_mach_rs6k          0
 188 .#define bfd_mach_rs6k_rs1      6001
 189 .#define bfd_mach_rs6k_rsc      6003
 190 .#define bfd_mach_rs6k_rs2      6002
 191 .  bfd_arch_hppa,      {* HP PA RISC *}
 192 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 193 .#define bfd_mach_d10v          0
 194 .#define bfd_mach_d10v_ts2      2
 195 .#define bfd_mach_d10v_ts3      3
 196 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 197 .  bfd_arch_dlx,       {* DLX *}
 198 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 199 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 200 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 201 .#define bfd_mach_z8001         1
 202 .#define bfd_mach_z8002         2
 203 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 204 .  bfd_arch_sh,        {* Hitachi SH *}
 205 .#define bfd_mach_sh            0
 206 .#define bfd_mach_sh2        0x20
 207 .#define bfd_mach_sh_dsp     0x2d
 208 .#define bfd_mach_sh3        0x30
 209 .#define bfd_mach_sh3_dsp    0x3d
 210 .#define bfd_mach_sh3e       0x3e
 211 .#define bfd_mach_sh4        0x40
 212 .#define bfd_mach_sh5        0x50
 213 .  bfd_arch_alpha,     {* Dec Alpha *}
 214 .#define bfd_mach_alpha_ev4  0x10
 215 .#define bfd_mach_alpha_ev5  0x20
 216 .#define bfd_mach_alpha_ev6  0x30
 217 .  bfd_arch_arm,       {* Advanced Risc Machines ARM.  *}
 218 .#define bfd_mach_arm_2         1
 219 .#define bfd_mach_arm_2a        2
 220 .#define bfd_mach_arm_3         3
 221 .#define bfd_mach_arm_3M        4
 222 .#define bfd_mach_arm_4         5
 223 .#define bfd_mach_arm_4T        6
 224 .#define bfd_mach_arm_5         7
 225 .#define bfd_mach_arm_5T        8
 226 .#define bfd_mach_arm_5TE       9
 227 .#define bfd_mach_arm_XScale    10
 228 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 229 .  bfd_arch_w65,       {* WDC 65816 *}
 230 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 231 .  bfd_arch_tic4x,     {* Texas Instruments TMS320C3X/4X *}
 232 .#define bfd_mach_c3x           30
 233 .#define bfd_mach_c4x           40
 234 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 235 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 236 .  bfd_arch_v850,      {* NEC V850 *}
 237 .#define bfd_mach_v850          0
 238 .#define bfd_mach_v850e         'E'
 239 .#define bfd_mach_v850ea        'A'
 240 .  bfd_arch_arc,       {* ARC Cores *}
 241 .#define bfd_mach_arc_5         0
 242 .#define bfd_mach_arc_6         1
 243 .#define bfd_mach_arc_7         2
 244 .#define bfd_mach_arc_8         3
 245 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 246 .#define bfd_mach_m32r          0 {* For backwards compatibility.  *}
 247 .#define bfd_mach_m32rx         'x'
 248 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 249 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 250 .#define bfd_mach_mn10300               300
 251 .#define bfd_mach_am33          330
 252 .  bfd_arch_fr30,
 253 .#define bfd_mach_fr30          0x46523330
 254 .  bfd_arch_frv,
 255 .#define bfd_mach_frv           0
 256 .#define bfd_mach_frvsimple     1
 257 .#define bfd_mach_fr300         300
 258 .#define bfd_mach_fr400         400
 259 .#define bfd_mach_frvtomcat     499     {* fr500 prototype *}
 260 .#define bfd_mach_fr500         500
 261 .  bfd_arch_mcore,
 262 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 263 .#define bfd_mach_ia64_elf64    0
 264 .#define bfd_mach_ia64_elf32    1
 265 .  bfd_arch_ip2k,      {* Ubicom IP2K microcontrollers. *}
 266 .#define bfd_mach_ip2022        0
 267 .#define bfd_mach_ip2022ext     1
 268 .  bfd_arch_pj,
 269 .  bfd_arch_avr,       {* Atmel AVR microcontrollers.  *}
 270 .#define bfd_mach_avr1          1
 271 .#define bfd_mach_avr2          2
 272 .#define bfd_mach_avr3          3
 273 .#define bfd_mach_avr4          4
 274 .#define bfd_mach_avr5          5
 275 .  bfd_arch_cris,      {* Axis CRIS *}
 276 .  bfd_arch_s390,      {* IBM s390 *}
 277 .#define bfd_mach_s390_31       0
 278 .#define bfd_mach_s390_64       1
 279 .  bfd_arch_openrisc,  {* OpenRISC *}
 280 .  bfd_arch_mmix,      {* Donald Knuth's educational processor.  *}
 281 .  bfd_arch_xstormy16,
 282 .#define bfd_mach_xstormy16     0
 283 .  bfd_arch_last
 284 .  };
 285 */
 286
 287 /*
 288 SUBSECTION
 289         bfd_arch_info
 290
 291 DESCRIPTION
 292         This structure contains information on architectures for use
 293         within BFD.
 294
 295 .
 296 .typedef struct bfd_arch_info
 297 .{
 298 .  int bits_per_word;
 299 .  int bits_per_address;
 300 .  int bits_per_byte;
 301 .  enum bfd_architecture arch;
 302 .  unsigned long mach;
 303 .  const char *arch_name;
 304 .  const char *printable_name;
 305 .  unsigned int section_align_power;
 306 .  {* True if this is the default machine for the architecture.
 307 .     The default arch should be the first entry for an arch so that
 308 .     all the entries for that arch can be accessed via <<next>>.  *}
 309 .  boolean the_default;
 310 .  const struct bfd_arch_info * (*compatible)
 311 .       PARAMS ((const struct bfd_arch_info *a,
 312 .                const struct bfd_arch_info *b));
 313 .
 314 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 315 .
 316 .  const struct bfd_arch_info *next;
 317 .}
 318 .bfd_arch_info_type;
 319 .
 320 */
 321
 322 extern const bfd_arch_info_type bfd_a29k_arch;
 323 extern const bfd_arch_info_type bfd_alpha_arch;
 324 extern const bfd_arch_info_type bfd_arc_arch;
 325 extern const bfd_arch_info_type bfd_arm_arch;
 326 extern const bfd_arch_info_type bfd_avr_arch;
 327 extern const bfd_arch_info_type bfd_cris_arch;
 328 extern const bfd_arch_info_type bfd_d10v_arch;
 329 extern const bfd_arch_info_type bfd_d30v_arch;
 330 extern const bfd_arch_info_type bfd_dlx_arch;
 331 extern const bfd_arch_info_type bfd_fr30_arch;
 332 extern const bfd_arch_info_type bfd_frv_arch;
 333 extern const bfd_arch_info_type bfd_h8300_arch;
 334 extern const bfd_arch_info_type bfd_h8500_arch;
 335 extern const bfd_arch_info_type bfd_hppa_arch;
 336 extern const bfd_arch_info_type bfd_i370_arch;
 337 extern const bfd_arch_info_type bfd_i386_arch;
 338 extern const bfd_arch_info_type bfd_i860_arch;
 339 extern const bfd_arch_info_type bfd_i960_arch;
 340 extern const bfd_arch_info_type bfd_ia64_arch;
 341 extern const bfd_arch_info_type bfd_ip2k_arch;
 342 extern const bfd_arch_info_type bfd_m32r_arch;
 343 extern const bfd_arch_info_type bfd_m68hc11_arch;
 344 extern const bfd_arch_info_type bfd_m68hc12_arch;
 345 extern const bfd_arch_info_type bfd_m68k_arch;
 346 extern const bfd_arch_info_type bfd_m88k_arch;
 347 extern const bfd_arch_info_type bfd_mcore_arch;
 348 extern const bfd_arch_info_type bfd_mips_arch;
 349 extern const bfd_arch_info_type bfd_mmix_arch;
 350 extern const bfd_arch_info_type bfd_mn10200_arch;
 351 extern const bfd_arch_info_type bfd_mn10300_arch;
 352 extern const bfd_arch_info_type bfd_ns32k_arch;
 353 extern const bfd_arch_info_type bfd_openrisc_arch;
 354 extern const bfd_arch_info_type bfd_or32_arch;
 355 extern const bfd_arch_info_type bfd_pdp11_arch;
 356 extern const bfd_arch_info_type bfd_pj_arch;
 357 extern const bfd_arch_info_type bfd_powerpc_archs[];
 358 #define bfd_powerpc_arch bfd_powerpc_archs[0]
 359 extern const bfd_arch_info_type bfd_rs6000_arch;
 360 extern const bfd_arch_info_type bfd_s390_arch;
 361 extern const bfd_arch_info_type bfd_sh_arch;
 362 extern const bfd_arch_info_type bfd_sparc_arch;
 363 extern const bfd_arch_info_type bfd_tic30_arch;
 364 extern const bfd_arch_info_type bfd_tic4x_arch;
 365 extern const bfd_arch_info_type bfd_tic54x_arch;
 366 extern const bfd_arch_info_type bfd_tic80_arch;
 367 extern const bfd_arch_info_type bfd_v850_arch;
 368 extern const bfd_arch_info_type bfd_vax_arch;
 369 extern const bfd_arch_info_type bfd_we32k_arch;
 370 extern const bfd_arch_info_type bfd_w65_arch;
 371 extern const bfd_arch_info_type bfd_xstormy16_arch;
 372 extern const bfd_arch_info_type bfd_z8k_arch;
 373
 374 static const bfd_arch_info_type * const bfd_archures_list[] =
 375   {
 376 #ifdef SELECT_ARCHITECTURES
 377     SELECT_ARCHITECTURES,
 378 #else
 379     &bfd_a29k_arch,
 380     &bfd_alpha_arch,
 381     &bfd_arc_arch,
 382     &bfd_arm_arch,
 383     &bfd_avr_arch,
 384     &bfd_cris_arch,
 385     &bfd_d10v_arch,
 386     &bfd_d30v_arch,
 387     &bfd_dlx_arch,
 388     &bfd_fr30_arch,
 389     &bfd_frv_arch,
 390     &bfd_h8300_arch,
 391     &bfd_h8500_arch,
 392     &bfd_hppa_arch,
 393     &bfd_i370_arch,
 394     &bfd_i386_arch,
 395     &bfd_i860_arch,
 396     &bfd_i960_arch,
 397     &bfd_ia64_arch,
 398     &bfd_ip2k_arch,
 399     &bfd_m32r_arch,
 400     &bfd_m68hc11_arch,
 401     &bfd_m68hc12_arch,
 402     &bfd_m68k_arch,
 403     &bfd_m88k_arch,
 404     &bfd_mcore_arch,
 405     &bfd_mips_arch,
 406     &bfd_mmix_arch,
 407     &bfd_mn10200_arch,
 408     &bfd_mn10300_arch,
 409     &bfd_ns32k_arch,
 410     &bfd_openrisc_arch,
 411     &bfd_or32_arch,
 412     &bfd_pdp11_arch,
 413     &bfd_powerpc_arch,
 414     &bfd_rs6000_arch,
 415     &bfd_s390_arch,
 416     &bfd_sh_arch,
 417     &bfd_sparc_arch,
 418     &bfd_tic30_arch,
 419     &bfd_tic4x_arch,
 420     &bfd_tic54x_arch,
 421     &bfd_tic80_arch,
 422     &bfd_v850_arch,
 423     &bfd_vax_arch,
 424     &bfd_w65_arch,
 425     &bfd_we32k_arch,
 426     &bfd_xstormy16_arch,
 427     &bfd_z8k_arch,
 428 #endif
 429   0
 430 };
 431
 432 /*
 433 FUNCTION
 434         bfd_printable_name
 435
 436 SYNOPSIS
 437         const char *bfd_printable_name(bfd *abfd);
 438
 439 DESCRIPTION
 440         Return a printable string representing the architecture and machine
 441         from the pointer to the architecture info structure.
 442
 443 */
 444
 445 const char *
 446 bfd_printable_name (abfd)
 447      bfd *abfd;
 448 {
 449   return abfd->arch_info->printable_name;
 450 }
 451
 452 /*
 453 FUNCTION
 454         bfd_scan_arch
 455
 456 SYNOPSIS
 457         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 458
 459 DESCRIPTION
 460         Figure out if BFD supports any cpu which could be described with
 461         the name @var{string}.  Return a pointer to an <<arch_info>>
 462         structure if a machine is found, otherwise NULL.
 463 */
 464
 465 const bfd_arch_info_type *
 466 bfd_scan_arch (string)
 467      const char *string;
 468 {
 469   const bfd_arch_info_type * const *app, *ap;
 470
 471   /* Look through all the installed architectures.  */
 472   for (app = bfd_archures_list; *app != NULL; app++)
 473     {
 474       for (ap = *app; ap != NULL; ap = ap->next)
 475         {
 476           if (ap->scan (ap, string))
 477             return ap;
 478         }
 479     }
 480
 481   return NULL;
 482 }
 483
 484 /*
 485 FUNCTION
 486         bfd_arch_list
 487
 488 SYNOPSIS
 489         const char **bfd_arch_list(void);
 490
 491 DESCRIPTION
 492         Return a freshly malloced NULL-terminated vector of the names
 493         of all the valid BFD architectures.  Do not modify the names.
 494 */
 495
 496 const char **
 497 bfd_arch_list ()
 498 {
 499   int vec_length = 0;
 500   const char **name_ptr;
 501   const char **name_list;
 502   const bfd_arch_info_type * const *app;
 503   bfd_size_type amt;
 504
 505   /* Determine the number of architectures.  */
 506   vec_length = 0;
 507   for (app = bfd_archures_list; *app != NULL; app++)
 508     {
 509       const bfd_arch_info_type *ap;
 510       for (ap = *app; ap != NULL; ap = ap->next)
 511         {
 512           vec_length++;
 513         }
 514     }
 515
 516   amt = (vec_length + 1) * sizeof (char **);
 517   name_list = (const char **) bfd_malloc (amt);
 518   if (name_list == NULL)
 519     return NULL;
 520
 521   /* Point the list at each of the names.  */
 522   name_ptr = name_list;
 523   for (app = bfd_archures_list; *app != NULL; app++)
 524     {
 525       const bfd_arch_info_type *ap;
 526       for (ap = *app; ap != NULL; ap = ap->next)
 527         {
 528           *name_ptr = ap->printable_name;
 529           name_ptr++;
 530         }
 531     }
 532   *name_ptr = NULL;
 533
 534   return name_list;
 535 }
 536
 537 /*
 538 FUNCTION
 539         bfd_arch_get_compatible
 540
 541 SYNOPSIS
 542         const bfd_arch_info_type *bfd_arch_get_compatible(
 543                 const bfd *abfd,
 544                 const bfd *bbfd);
 545
 546 DESCRIPTION
 547         Determine whether two BFDs'
 548         architectures and machine types are compatible.  Calculates
 549         the lowest common denominator between the two architectures
 550         and machine types implied by the BFDs and returns a pointer to
 551         an <<arch_info>> structure describing the compatible machine.
 552 */
 553
 554 const bfd_arch_info_type *
 555 bfd_arch_get_compatible (abfd, bbfd)
 556      const bfd *abfd;
 557      const bfd *bbfd;
 558 {
 559   /* If either architecture is unknown, then all we can do is assume
 560      the user knows what he's doing.  */
 561   if (abfd->arch_info->arch == bfd_arch_unknown)
 562     return bbfd->arch_info;
 563   if (bbfd->arch_info->arch == bfd_arch_unknown)
 564     return abfd->arch_info;
 565
 566   /* Otherwise architecture-specific code has to decide.  */
 567   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 568 }
 569
 570 /*
 571 INTERNAL_DEFINITION
 572         bfd_default_arch_struct
 573
 574 DESCRIPTION
 575         The <<bfd_default_arch_struct>> is an item of
 576         <<bfd_arch_info_type>> which has been initialized to a fairly
 577         generic state.  A BFD starts life by pointing to this
 578         structure, until the correct back end has determined the real
 579         architecture of the file.
 580
 581 .extern const bfd_arch_info_type bfd_default_arch_struct;
 582 */
 583
 584 const bfd_arch_info_type bfd_default_arch_struct = {
 585   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 586   bfd_default_compatible,
 587   bfd_default_scan,
 588   0,
 589 };
 590
 591 /*
 592 FUNCTION
 593         bfd_set_arch_info
 594
 595 SYNOPSIS
 596         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 597
 598 DESCRIPTION
 599         Set the architecture info of @var{abfd} to @var{arg}.
 600 */
 601
 602 void
 603 bfd_set_arch_info (abfd, arg)
 604      bfd *abfd;
 605      const bfd_arch_info_type *arg;
 606 {
 607   abfd->arch_info = arg;
 608 }
 609
 610 /*
 611 INTERNAL_FUNCTION
 612         bfd_default_set_arch_mach
 613
 614 SYNOPSIS
 615         boolean bfd_default_set_arch_mach(bfd *abfd,
 616                 enum bfd_architecture arch,
 617                 unsigned long mach);
 618
 619 DESCRIPTION
 620         Set the architecture and machine type in BFD @var{abfd}
 621         to @var{arch} and @var{mach}.  Find the correct
 622         pointer to a structure and insert it into the <<arch_info>>
 623         pointer.
 624 */
 625
 626 boolean
 627 bfd_default_set_arch_mach (abfd, arch, mach)
 628      bfd *abfd;
 629      enum bfd_architecture arch;
 630      unsigned long mach;
 631 {
 632   abfd->arch_info = bfd_lookup_arch (arch, mach);
 633   if (abfd->arch_info != NULL)
 634     return true;
 635
 636   abfd->arch_info = &bfd_default_arch_struct;
 637   bfd_set_error (bfd_error_bad_value);
 638   return false;
 639 }
 640
 641 /*
 642 FUNCTION
 643         bfd_get_arch
 644
 645 SYNOPSIS
 646         enum bfd_architecture bfd_get_arch(bfd *abfd);
 647
 648 DESCRIPTION
 649         Return the enumerated type which describes the BFD @var{abfd}'s
 650         architecture.
 651 */
 652
 653 enum bfd_architecture
 654 bfd_get_arch (abfd)
 655      bfd *abfd;
 656 {
 657   return abfd->arch_info->arch;
 658 }
 659
 660 /*
 661 FUNCTION
 662         bfd_get_mach
 663
 664 SYNOPSIS
 665         unsigned long bfd_get_mach(bfd *abfd);
 666
 667 DESCRIPTION
 668         Return the long type which describes the BFD @var{abfd}'s
 669         machine.
 670 */
 671
 672 unsigned long
 673 bfd_get_mach (abfd)
 674      bfd *abfd;
 675 {
 676   return abfd->arch_info->mach;
 677 }
 678
 679 /*
 680 FUNCTION
 681         bfd_arch_bits_per_byte
 682
 683 SYNOPSIS
 684         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 685
 686 DESCRIPTION
 687         Return the number of bits in one of the BFD @var{abfd}'s
 688         architecture's bytes.
 689 */
 690
 691 unsigned int
 692 bfd_arch_bits_per_byte (abfd)
 693      bfd *abfd;
 694 {
 695   return abfd->arch_info->bits_per_byte;
 696 }
 697
 698 /*
 699 FUNCTION
 700         bfd_arch_bits_per_address
 701
 702 SYNOPSIS
 703         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 704
 705 DESCRIPTION
 706         Return the number of bits in one of the BFD @var{abfd}'s
 707         architecture's addresses.
 708 */
 709
 710 unsigned int
 711 bfd_arch_bits_per_address (abfd)
 712      bfd *abfd;
 713 {
 714   return abfd->arch_info->bits_per_address;
 715 }
 716
 717 /*
 718 INTERNAL_FUNCTION
 719         bfd_default_compatible
 720
 721 SYNOPSIS
 722         const bfd_arch_info_type *bfd_default_compatible
 723         (const bfd_arch_info_type *a,
 724         const bfd_arch_info_type *b);
 725
 726 DESCRIPTION
 727         The default function for testing for compatibility.
 728 */
 729
 730 const bfd_arch_info_type *
 731 bfd_default_compatible (a, b)
 732      const bfd_arch_info_type *a;
 733      const bfd_arch_info_type *b;
 734 {
 735   if (a->arch != b->arch)
 736     return NULL;
 737
 738   if (a->bits_per_word != b->bits_per_word)
 739     return NULL;
 740
 741   if (a->mach > b->mach)
 742     return a;
 743
 744   if (b->mach > a->mach)
 745     return b;
 746
 747   return a;
 748 }
 749
 750 /*
 751 INTERNAL_FUNCTION
 752         bfd_default_scan
 753
 754 SYNOPSIS
 755         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 756
 757 DESCRIPTION
 758         The default function for working out whether this is an
 759         architecture hit and a machine hit.
 760 */
 761
 762 boolean
 763 bfd_default_scan (info, string)
 764      const bfd_arch_info_type *info;
 765      const char *string;
 766 {
 767   const char *ptr_src;
 768   const char *ptr_tst;
 769   unsigned long number;
 770   enum bfd_architecture arch;
 771   const char *printable_name_colon;
 772
 773   /* Exact match of the architecture name (ARCH_NAME) and also the
 774      default architecture?  */
 775   if (strcasecmp (string, info->arch_name) == 0
 776       && info->the_default)
 777     return true;
 778
 779   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 780   if (strcasecmp (string, info->printable_name) == 0)
 781     return true;
 782
 783   /* Given that printable_name contains no colon, attempt to match:
 784      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 785   printable_name_colon = strchr (info->printable_name, ':');
 786   if (printable_name_colon == NULL)
 787     {
 788       size_t strlen_arch_name = strlen (info->arch_name);
 789       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 790         {
 791           if (string[strlen_arch_name] == ':')
 792             {
 793               if (strcasecmp (string + strlen_arch_name + 1,
 794                               info->printable_name) == 0)
 795                 return true;
 796             }
 797           else
 798             {
 799               if (strcasecmp (string + strlen_arch_name,
 800                               info->printable_name) == 0)
 801                 return true;
 802             }
 803         }
 804     }
 805
 806   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 807      Attempt to match: <arch> <mach>?  */
 808   if (printable_name_colon != NULL)
 809     {
 810       size_t colon_index = printable_name_colon - info->printable_name;
 811       if (strncasecmp (string, info->printable_name, colon_index) == 0
 812           && strcasecmp (string + colon_index,
 813                          info->printable_name + colon_index + 1) == 0)
 814         return true;
 815     }
 816
 817   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 818      attempt to match just <mach>, it could be ambigious.  This test
 819      is left until later.  */
 820
 821   /* NOTE: The below is retained for compatibility only.  Please do
 822      not add to this code.  */
 823
 824   /* See how much of the supplied string matches with the
 825      architecture, eg the string m68k:68020 would match the 68k entry
 826      up to the :, then we get left with the machine number.  */
 827
 828   for (ptr_src = string, ptr_tst = info->arch_name;
 829        *ptr_src && *ptr_tst;
 830        ptr_src++, ptr_tst++)
 831     {
 832       if (*ptr_src != *ptr_tst)
 833         break;
 834     }
 835
 836   /* Chewed up as much of the architecture as will match, skip any
 837      colons.  */
 838   if (*ptr_src == ':')
 839     ptr_src++;
 840
 841   if (*ptr_src == 0)
 842     {
 843       /* Nothing more, then only keep this one if it is the default
 844          machine for this architecture.  */
 845       return info->the_default;
 846     }
 847
 848   number = 0;
 849   while (ISDIGIT (*ptr_src))
 850     {
 851       number = number * 10 + *ptr_src - '0';
 852       ptr_src++;
 853     }
 854
 855   /* NOTE: The below is retained for compatibility only.
 856      PLEASE DO NOT ADD TO THIS CODE.  */
 857
 858   switch (number)
 859     {
 860       /* FIXME: These are needed to parse IEEE objects.  */
 861       /* The following seven case's are here only for compatibility with
 862          older binutils (at least IEEE objects from binutils 2.9.1 require
 863          them).  */
 864     case bfd_mach_m68000:
 865     case bfd_mach_m68010:
 866     case bfd_mach_m68020:
 867     case bfd_mach_m68030:
 868     case bfd_mach_m68040:
 869     case bfd_mach_m68060:
 870     case bfd_mach_cpu32:
 871       arch = bfd_arch_m68k;
 872       break;
 873     case 68000:
 874       arch = bfd_arch_m68k;
 875       number = bfd_mach_m68000;
 876       break;
 877     case 68010:
 878       arch = bfd_arch_m68k;
 879       number = bfd_mach_m68010;
 880       break;
 881     case 68020:
 882       arch = bfd_arch_m68k;
 883       number = bfd_mach_m68020;
 884       break;
 885     case 68030:
 886       arch = bfd_arch_m68k;
 887       number = bfd_mach_m68030;
 888       break;
 889     case 68040:
 890       arch = bfd_arch_m68k;
 891       number = bfd_mach_m68040;
 892       break;
 893     case 68060:
 894       arch = bfd_arch_m68k;
 895       number = bfd_mach_m68060;
 896       break;
 897     case 68332:
 898       arch = bfd_arch_m68k;
 899       number = bfd_mach_cpu32;
 900       break;
 901     case 5200:
 902       arch = bfd_arch_m68k;
 903       number = bfd_mach_mcf5200;
 904       break;
 905     case 5206:
 906       arch = bfd_arch_m68k;
 907       number = bfd_mach_mcf5206e;
 908       break;
 909     case 5307:
 910       arch = bfd_arch_m68k;
 911       number = bfd_mach_mcf5307;
 912       break;
 913     case 5407:
 914       arch = bfd_arch_m68k;
 915       number = bfd_mach_mcf5407;
 916       break;
 917
 918     case 32000:
 919       arch = bfd_arch_we32k;
 920       break;
 921
 922     case 3000:
 923       arch = bfd_arch_mips;
 924       number = bfd_mach_mips3000;
 925       break;
 926
 927     case 4000:
 928       arch = bfd_arch_mips;
 929       number = bfd_mach_mips4000;
 930       break;
 931
 932     case 6000:
 933       arch = bfd_arch_rs6000;
 934       break;
 935
 936     case 7410:
 937       arch = bfd_arch_sh;
 938       number = bfd_mach_sh_dsp;
 939       break;
 940
 941     case 7708:
 942       arch = bfd_arch_sh;
 943       number = bfd_mach_sh3;
 944       break;
 945
 946     case 7729:
 947       arch = bfd_arch_sh;
 948       number = bfd_mach_sh3_dsp;
 949       break;
 950
 951     case 7750:
 952       arch = bfd_arch_sh;
 953       number = bfd_mach_sh4;
 954       break;
 955
 956     default:
 957       return false;
 958     }
 959
 960   if (arch != info->arch)
 961     return false;
 962
 963   if (number != info->mach)
 964     return false;
 965
 966   return true;
 967 }
 968
 969 /*
 970 FUNCTION
 971         bfd_get_arch_info
 972
 973 SYNOPSIS
 974         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 975
 976 DESCRIPTION
 977         Return the architecture info struct in @var{abfd}.
 978 */
 979
 980 const bfd_arch_info_type *
 981 bfd_get_arch_info (abfd)
 982      bfd *abfd;
 983 {
 984   return abfd->arch_info;
 985 }
 986
 987 /*
 988 FUNCTION
 989         bfd_lookup_arch
 990
 991 SYNOPSIS
 992         const bfd_arch_info_type *bfd_lookup_arch
 993                 (enum bfd_architecture
 994                 arch,
 995                 unsigned long machine);
 996
 997 DESCRIPTION
 998         Look for the architecure info structure which matches the
 999         arguments @var{arch} and @var{machine}. A machine of 0 matches the
1000         machine/architecture structure which marks itself as the
1001         default.
1002 */
1003
1004 const bfd_arch_info_type *
1005 bfd_lookup_arch (arch, machine)
1006      enum bfd_architecture arch;
1007      unsigned long machine;
1008 {
1009   const bfd_arch_info_type * const *app, *ap;
1010
1011   for (app = bfd_archures_list; *app != NULL; app++)
1012     {
1013       for (ap = *app; ap != NULL; ap = ap->next)
1014         {
1015           if (ap->arch == arch
1016               && (ap->mach == machine
1017                   || (machine == 0 && ap->the_default)))
1018             return ap;
1019         }
1020     }
1021
1022   return NULL;
1023 }
1024
1025 /*
1026 FUNCTION
1027         bfd_printable_arch_mach
1028
1029 SYNOPSIS
1030         const char *bfd_printable_arch_mach
1031                 (enum bfd_architecture arch, unsigned long machine);
1032
1033 DESCRIPTION
1034         Return a printable string representing the architecture and
1035         machine type.
1036
1037         This routine is depreciated.
1038 */
1039
1040 const char *
1041 bfd_printable_arch_mach (arch, machine)
1042      enum bfd_architecture arch;
1043      unsigned long machine;
1044 {
1045   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
1046
1047   if (ap)
1048     return ap->printable_name;
1049   return "UNKNOWN!";
1050 }
1051
1052 /*
1053 FUNCTION
1054         bfd_octets_per_byte
1055
1056 SYNOPSIS
1057         unsigned int bfd_octets_per_byte(bfd *abfd);
1058
1059 DESCRIPTION
1060         Return the number of octets (8-bit quantities) per target byte
1061         (minimum addressable unit).  In most cases, this will be one, but some
1062         DSP targets have 16, 32, or even 48 bits per byte.
1063 */
1064
1065 unsigned int
1066 bfd_octets_per_byte (abfd)
1067      bfd *abfd;
1068 {
1069   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1070                                         bfd_get_mach (abfd));
1071 }
1072
1073 /*
1074 FUNCTION
1075         bfd_arch_mach_octets_per_byte
1076
1077 SYNOPSIS
1078         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1079                                                    unsigned long machine);
1080
1081 DESCRIPTION
1082         See bfd_octets_per_byte.
1083
1084         This routine is provided for those cases where a bfd * is not
1085         available
1086 */
1087
1088 unsigned int
1089 bfd_arch_mach_octets_per_byte (arch, mach)
1090      enum bfd_architecture arch;
1091      unsigned long mach;
1092 {
1093   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1094
1095   if (ap)
1096     return ap->bits_per_byte / 8;
1097   return 1;
1098 }