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