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