bfd/archures.c

   1 /* BFD library support routines for architectures.
   2    Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999, 2000
   3    Free Software Foundation, Inc.
   4    Hacked by John Gilmore and Steve Chamberlain of Cygnus Support.
   5
   6 This file is part of BFD, the Binary File Descriptor library.
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #include "bfd.h"
  23 #include "sysdep.h"
  24 #include "libbfd.h"
  25 #include <ctype.h>
  26
  27 /*
  28
  29 SECTION
  30         Architectures
  31
  32         BFD keeps one atom in a BFD describing the
  33         architecture of the data attached to the BFD: a pointer to a
  34         <<bfd_arch_info_type>>.
  35
  36         Pointers to structures can be requested independently of a BFD
  37         so that an architecture's information can be interrogated
  38         without access to an open BFD.
  39
  40         The architecture information is provided by each architecture package.
  41         The set of default architectures is selected by the macro
  42         <<SELECT_ARCHITECTURES>>.  This is normally set up in the
  43         @file{config/@var{target}.mt} file of your choice.  If the name is not
  44         defined, then all the architectures supported are included.
  45
  46         When BFD starts up, all the architectures are called with an
  47         initialize method.  It is up to the architecture back end to
  48         insert as many items into the list of architectures as it wants to;
  49         generally this would be one for each machine and one for the
  50         default case (an item with a machine field of 0).
  51
  52         BFD's idea of an architecture is implemented in @file{archures.c}.
  53 */
  54
  55 /*
  56
  57 SUBSECTION
  58         bfd_architecture
  59
  60 DESCRIPTION
  61         This enum gives the object file's CPU architecture, in a
  62         global sense---i.e., what processor family does it belong to?
  63         Another field indicates which processor within
  64         the family is in use.  The machine gives a number which
  65         distinguishes different versions of the architecture,
  66         containing, for example, 2 and 3 for Intel i960 KA and i960 KB,
  67         and 68020 and 68030 for Motorola 68020 and 68030.
  68
  69 .enum bfd_architecture
  70 .{
  71 .  bfd_arch_unknown,   {* File arch not known *}
  72 .  bfd_arch_obscure,   {* Arch known, not one of these *}
  73 .  bfd_arch_m68k,      {* Motorola 68xxx *}
  74 .#define bfd_mach_m68000 1
  75 .#define bfd_mach_m68008 2
  76 .#define bfd_mach_m68010 3
  77 .#define bfd_mach_m68020 4
  78 .#define bfd_mach_m68030 5
  79 .#define bfd_mach_m68040 6
  80 .#define bfd_mach_m68060 7
  81 .#define bfd_mach_cpu32  8
  82 .  bfd_arch_vax,       {* DEC Vax *}
  83 .  bfd_arch_i960,      {* Intel 960 *}
  84 .    {* The order of the following is important.
  85 .       lower number indicates a machine type that
  86 .       only accepts a subset of the instructions
  87 .       available to machines with higher numbers.
  88 .       The exception is the "ca", which is
  89 .       incompatible with all other machines except
  90 .       "core". *}
  91 .
  92 .#define bfd_mach_i960_core      1
  93 .#define bfd_mach_i960_ka_sa     2
  94 .#define bfd_mach_i960_kb_sb     3
  95 .#define bfd_mach_i960_mc        4
  96 .#define bfd_mach_i960_xa        5
  97 .#define bfd_mach_i960_ca        6
  98 .#define bfd_mach_i960_jx        7
  99 .#define bfd_mach_i960_hx        8
 100 .
 101 .  bfd_arch_a29k,      {* AMD 29000 *}
 102 .  bfd_arch_sparc,     {* SPARC *}
 103 .#define bfd_mach_sparc                 1
 104 .{* The difference between v8plus and v9 is that v9 is a true 64 bit env.  *}
 105 .#define bfd_mach_sparc_sparclet        2
 106 .#define bfd_mach_sparc_sparclite       3
 107 .#define bfd_mach_sparc_v8plus          4
 108 .#define bfd_mach_sparc_v8plusa         5 {* with ultrasparc add'ns *}
 109 .#define bfd_mach_sparc_sparclite_le    6
 110 .#define bfd_mach_sparc_v9              7
 111 .#define bfd_mach_sparc_v9a             8 {* with ultrasparc add'ns *}
 112 .#define bfd_mach_sparc_v8plusb         9 {* with cheetah add'ns *}
 113 .#define bfd_mach_sparc_v9b             10 {* with cheetah add'ns *}
 114 .{* Nonzero if MACH has the v9 instruction set.  *}
 115 .#define bfd_mach_sparc_v9_p(mach) \
 116 .  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
 117 .   && (mach) != bfd_mach_sparc_sparclite_le)
 118 .  bfd_arch_mips,      {* MIPS Rxxxx *}
 119 .#define bfd_mach_mips3000              3000
 120 .#define bfd_mach_mips3900              3900
 121 .#define bfd_mach_mips4000              4000
 122 .#define bfd_mach_mips4010              4010
 123 .#define bfd_mach_mips4100              4100
 124 .#define bfd_mach_mips4111              4111
 125 .#define bfd_mach_mips4300              4300
 126 .#define bfd_mach_mips4400              4400
 127 .#define bfd_mach_mips4600              4600
 128 .#define bfd_mach_mips4650              4650
 129 .#define bfd_mach_mips5000              5000
 130 .#define bfd_mach_mips6000              6000
 131 .#define bfd_mach_mips8000              8000
 132 .#define bfd_mach_mips10000             10000
 133 .#define bfd_mach_mips16                16
 134 .#define bfd_mach_mips32                32
 135 .#define bfd_mach_mips32_4k             3204113 {* 32, 04, octal 'K' *}
 136 .#define bfd_mach_mips5                 5
 137 .#define bfd_mach_mips64                64
 138 .#define bfd_mach_mips_sb1              12310201 {* octal 'SB', 01 *}
 139 .  bfd_arch_i386,      {* Intel 386 *}
 140 .#define bfd_mach_i386_i386 0
 141 .#define bfd_mach_i386_i8086 1
 142 .#define bfd_mach_i386_i386_intel_syntax 2
 143 .#define bfd_mach_x86_64 3
 144 .#define bfd_mach_x86_64_intel_syntax 4
 145 .  bfd_arch_we32k,     {* AT&T WE32xxx *}
 146 .  bfd_arch_tahoe,     {* CCI/Harris Tahoe *}
 147 .  bfd_arch_i860,      {* Intel 860 *}
 148 .  bfd_arch_i370,      {* IBM 360/370 Mainframes *}
 149 .  bfd_arch_romp,      {* IBM ROMP PC/RT *}
 150 .  bfd_arch_alliant,   {* Alliant *}
 151 .  bfd_arch_convex,    {* Convex *}
 152 .  bfd_arch_m88k,      {* Motorola 88xxx *}
 153 .  bfd_arch_pyramid,   {* Pyramid Technology *}
 154 .  bfd_arch_h8300,     {* Hitachi H8/300 *}
 155 .#define bfd_mach_h8300   1
 156 .#define bfd_mach_h8300h  2
 157 .#define bfd_mach_h8300s  3
 158 .  bfd_arch_pdp11,     {* DEC PDP-11 *}
 159 .  bfd_arch_powerpc,   {* PowerPC *}
 160 .#define bfd_mach_ppc           0
 161 .#define bfd_mach_ppc_403       403
 162 .#define bfd_mach_ppc_403gc     4030
 163 .#define bfd_mach_ppc_505       505
 164 .#define bfd_mach_ppc_601       601
 165 .#define bfd_mach_ppc_602       602
 166 .#define bfd_mach_ppc_603       603
 167 .#define bfd_mach_ppc_ec603e    6031
 168 .#define bfd_mach_ppc_604       604
 169 .#define bfd_mach_ppc_620       620
 170 .#define bfd_mach_ppc_630       630
 171 .#define bfd_mach_ppc_750       750
 172 .#define bfd_mach_ppc_860       860
 173 .#define bfd_mach_ppc_a35       35
 174 .#define bfd_mach_ppc_rs64ii    642
 175 .#define bfd_mach_ppc_rs64iii   643
 176 .#define bfd_mach_ppc_7400      7400
 177 .  bfd_arch_rs6000,    {* IBM RS/6000 *}
 178 .#define bfd_mach_rs6k          0
 179 .#define bfd_mach_rs6k_rs1      6001
 180 .#define bfd_mach_rs6k_rsc      6003
 181 .#define bfd_mach_rs6k_rs2      6002
 182 .  bfd_arch_hppa,      {* HP PA RISC *}
 183 .  bfd_arch_d10v,      {* Mitsubishi D10V *}
 184 .#define bfd_mach_d10v          0
 185 .#define bfd_mach_d10v_ts2      2
 186 .#define bfd_mach_d10v_ts3      3
 187 .  bfd_arch_d30v,      {* Mitsubishi D30V *}
 188 .  bfd_arch_m68hc11,   {* Motorola 68HC11 *}
 189 .  bfd_arch_m68hc12,   {* Motorola 68HC12 *}
 190 .  bfd_arch_z8k,       {* Zilog Z8000 *}
 191 .#define bfd_mach_z8001         1
 192 .#define bfd_mach_z8002         2
 193 .  bfd_arch_h8500,     {* Hitachi H8/500 *}
 194 .  bfd_arch_sh,        {* Hitachi SH *}
 195 .#define bfd_mach_sh            0
 196 .#define bfd_mach_sh2        0x20
 197 .#define bfd_mach_sh_dsp     0x2d
 198 .#define bfd_mach_sh3        0x30
 199 .#define bfd_mach_sh3_dsp    0x3d
 200 .#define bfd_mach_sh3e       0x3e
 201 .#define bfd_mach_sh4        0x40
 202 .  bfd_arch_alpha,     {* Dec Alpha *}
 203 .#define bfd_mach_alpha_ev4  0x10
 204 .#define bfd_mach_alpha_ev5  0x20
 205 .#define bfd_mach_alpha_ev6  0x30
 206 .  bfd_arch_arm,       {* Advanced Risc Machines ARM *}
 207 .#define bfd_mach_arm_2         1
 208 .#define bfd_mach_arm_2a        2
 209 .#define bfd_mach_arm_3         3
 210 .#define bfd_mach_arm_3M        4
 211 .#define bfd_mach_arm_4         5
 212 .#define bfd_mach_arm_4T        6
 213 .#define bfd_mach_arm_5         7
 214 .#define bfd_mach_arm_5T        8
 215 .#define bfd_mach_arm_5TE       9
 216 .#define bfd_mach_arm_XScale    10
 217 .  bfd_arch_ns32k,     {* National Semiconductors ns32000 *}
 218 .  bfd_arch_w65,       {* WDC 65816 *}
 219 .  bfd_arch_tic30,     {* Texas Instruments TMS320C30 *}
 220 .  bfd_arch_tic54x,    {* Texas Instruments TMS320C54X *}
 221 .  bfd_arch_tic80,     {* TI TMS320c80 (MVP) *}
 222 .  bfd_arch_v850,      {* NEC V850 *}
 223 .#define bfd_mach_v850          0
 224 .#define bfd_mach_v850e         'E'
 225 .#define bfd_mach_v850ea        'A'
 226 .  bfd_arch_arc,       {* ARC Cores *}
 227 .#define bfd_mach_arc_5         0
 228 .#define bfd_mach_arc_6         1
 229 .#define bfd_mach_arc_7         2
 230 .#define bfd_mach_arc_8         3
 231 .  bfd_arch_m32r,      {* Mitsubishi M32R/D *}
 232 .#define bfd_mach_m32r          0 {* backwards compatibility *}
 233 .#define bfd_mach_m32rx         'x'
 234 .  bfd_arch_mn10200,   {* Matsushita MN10200 *}
 235 .  bfd_arch_mn10300,   {* Matsushita MN10300 *}
 236 .#define bfd_mach_mn10300               300
 237 .#define bfd_mach_am33          330
 238 .  bfd_arch_fr30,
 239 .#define bfd_mach_fr30          0x46523330
 240 .  bfd_arch_mcore,
 241 .  bfd_arch_ia64,      {* HP/Intel ia64 *}
 242 .#define bfd_mach_ia64_elf64    0
 243 .#define bfd_mach_ia64_elf32    1
 244 .  bfd_arch_pj,
 245 .  bfd_arch_avr,       {* Atmel AVR microcontrollers *}
 246 .#define bfd_mach_avr1          1
 247 .#define bfd_mach_avr2          2
 248 .#define bfd_mach_avr3          3
 249 .#define bfd_mach_avr4          4
 250 .#define bfd_mach_avr5          5
 251 .  bfd_arch_cris,      {* Axis CRIS *}
 252 .  bfd_arch_s390,      {* IBM s390 *}
 253 .#define bfd_mach_s390_esa      0
 254 .#define bfd_mach_s390_esame    1
 255 .  bfd_arch_last
 256 .  };
 257 */
 258
 259 /*
 260 SUBSECTION
 261         bfd_arch_info
 262
 263 DESCRIPTION
 264         This structure contains information on architectures for use
 265         within BFD.
 266
 267 .
 268 .typedef struct bfd_arch_info
 269 .{
 270 .  int bits_per_word;
 271 .  int bits_per_address;
 272 .  int bits_per_byte;
 273 .  enum bfd_architecture arch;
 274 .  unsigned long mach;
 275 .  const char *arch_name;
 276 .  const char *printable_name;
 277 .  unsigned int section_align_power;
 278 .  {* True if this is the default machine for the architecture.  *}
 279 .  boolean the_default;
 280 .  const struct bfd_arch_info * (*compatible)
 281 .       PARAMS ((const struct bfd_arch_info *a,
 282 .                const struct bfd_arch_info *b));
 283 .
 284 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 285 .
 286 .  const struct bfd_arch_info *next;
 287 .} bfd_arch_info_type;
 288 */
 289
 290 extern const bfd_arch_info_type bfd_a29k_arch;
 291 extern const bfd_arch_info_type bfd_alpha_arch;
 292 extern const bfd_arch_info_type bfd_arc_arch;
 293 extern const bfd_arch_info_type bfd_arm_arch;
 294 extern const bfd_arch_info_type bfd_cris_arch;
 295 extern const bfd_arch_info_type bfd_d10v_arch;
 296 extern const bfd_arch_info_type bfd_d30v_arch;
 297 extern const bfd_arch_info_type bfd_h8300_arch;
 298 extern const bfd_arch_info_type bfd_h8500_arch;
 299 extern const bfd_arch_info_type bfd_hppa_arch;
 300 extern const bfd_arch_info_type bfd_i370_arch;
 301 extern const bfd_arch_info_type bfd_i386_arch;
 302 extern const bfd_arch_info_type bfd_i860_arch;
 303 extern const bfd_arch_info_type bfd_i960_arch;
 304 extern const bfd_arch_info_type bfd_m32r_arch;
 305 extern const bfd_arch_info_type bfd_m68hc11_arch;
 306 extern const bfd_arch_info_type bfd_m68hc12_arch;
 307 extern const bfd_arch_info_type bfd_m68k_arch;
 308 extern const bfd_arch_info_type bfd_m88k_arch;
 309 extern const bfd_arch_info_type bfd_mips_arch;
 310 extern const bfd_arch_info_type bfd_mn10200_arch;
 311 extern const bfd_arch_info_type bfd_mn10300_arch;
 312 extern const bfd_arch_info_type bfd_pdp11_arch;
 313 extern const bfd_arch_info_type bfd_powerpc_arch;
 314 extern const bfd_arch_info_type bfd_rs6000_arch;
 315 extern const bfd_arch_info_type bfd_pj_arch;
 316 extern const bfd_arch_info_type bfd_sh_arch;
 317 extern const bfd_arch_info_type bfd_sparc_arch;
 318 extern const bfd_arch_info_type bfd_tic30_arch;
 319 extern const bfd_arch_info_type bfd_tic54x_arch;
 320 extern const bfd_arch_info_type bfd_tic80_arch;
 321 extern const bfd_arch_info_type bfd_vax_arch;
 322 extern const bfd_arch_info_type bfd_we32k_arch;
 323 extern const bfd_arch_info_type bfd_z8k_arch;
 324 extern const bfd_arch_info_type bfd_ns32k_arch;
 325 extern const bfd_arch_info_type bfd_w65_arch;
 326 extern const bfd_arch_info_type bfd_v850_arch;
 327 extern const bfd_arch_info_type bfd_fr30_arch;
 328 extern const bfd_arch_info_type bfd_mcore_arch;
 329 extern const bfd_arch_info_type bfd_avr_arch;
 330 extern const bfd_arch_info_type bfd_ia64_arch;
 331 extern const bfd_arch_info_type bfd_s390_arch;
 332
 333 static const bfd_arch_info_type * const bfd_archures_list[] = {
 334 #ifdef SELECT_ARCHITECTURES
 335   SELECT_ARCHITECTURES,
 336 #else
 337   &bfd_a29k_arch,
 338   &bfd_alpha_arch,
 339   &bfd_arc_arch,
 340   &bfd_arm_arch,
 341   &bfd_cris_arch,
 342   &bfd_d10v_arch,
 343   &bfd_d30v_arch,
 344   &bfd_h8300_arch,
 345   &bfd_h8500_arch,
 346   &bfd_hppa_arch,
 347   &bfd_i370_arch,
 348   &bfd_i386_arch,
 349   &bfd_i860_arch,
 350   &bfd_i960_arch,
 351   &bfd_m32r_arch,
 352   &bfd_m68hc11_arch,
 353   &bfd_m68hc12_arch,
 354   &bfd_m68k_arch,
 355   &bfd_m88k_arch,
 356   &bfd_mips_arch,
 357   &bfd_mn10200_arch,
 358   &bfd_mn10300_arch,
 359   &bfd_pdp11_arch,
 360   &bfd_powerpc_arch,
 361   &bfd_rs6000_arch,
 362   &bfd_sh_arch,
 363   &bfd_sparc_arch,
 364   &bfd_tic30_arch,
 365   &bfd_tic54x_arch,
 366   &bfd_tic80_arch,
 367   &bfd_vax_arch,
 368   &bfd_we32k_arch,
 369   &bfd_z8k_arch,
 370   &bfd_ns32k_arch,
 371   &bfd_w65_arch,
 372   &bfd_v850_arch,
 373   &bfd_fr30_arch,
 374   &bfd_mcore_arch,
 375   &bfd_avr_arch,
 376   &bfd_ia64_arch,
 377   &bfd_s390_arch,
 378 #endif
 379   0
 380 };
 381
 382 /*
 383 FUNCTION
 384         bfd_printable_name
 385
 386 SYNOPSIS
 387         const char *bfd_printable_name(bfd *abfd);
 388
 389 DESCRIPTION
 390         Return a printable string representing the architecture and machine
 391         from the pointer to the architecture info structure.
 392
 393 */
 394
 395 const char *
 396 bfd_printable_name (abfd)
 397      bfd *abfd;
 398 {
 399   return abfd->arch_info->printable_name;
 400 }
 401
 402 /*
 403 FUNCTION
 404         bfd_scan_arch
 405
 406 SYNOPSIS
 407         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 408
 409 DESCRIPTION
 410         Figure out if BFD supports any cpu which could be described with
 411         the name @var{string}.  Return a pointer to an <<arch_info>>
 412         structure if a machine is found, otherwise NULL.
 413 */
 414
 415 const bfd_arch_info_type *
 416 bfd_scan_arch (string)
 417      const char *string;
 418 {
 419   const bfd_arch_info_type * const *app, *ap;
 420
 421   /* Look through all the installed architectures.  */
 422   for (app = bfd_archures_list; *app != NULL; app++)
 423     {
 424       for (ap = *app; ap != NULL; ap = ap->next)
 425         {
 426           if (ap->scan (ap, string))
 427             return ap;
 428         }
 429     }
 430
 431   return NULL;
 432 }
 433
 434 /*
 435 FUNCTION
 436         bfd_arch_list
 437
 438 SYNOPSIS
 439         const char **bfd_arch_list(void);
 440
 441 DESCRIPTION
 442         Return a freshly malloced NULL-terminated vector of the names
 443         of all the valid BFD architectures.  Do not modify the names.
 444 */
 445
 446 const char **
 447 bfd_arch_list ()
 448 {
 449   int vec_length = 0;
 450   const char **name_ptr;
 451   const char **name_list;
 452   const bfd_arch_info_type * const *app;
 453
 454   /* Determine the number of architectures.  */
 455   vec_length = 0;
 456   for (app = bfd_archures_list; *app != NULL; app++)
 457     {
 458       const bfd_arch_info_type *ap;
 459       for (ap = *app; ap != NULL; ap = ap->next)
 460         {
 461           vec_length++;
 462         }
 463     }
 464
 465   name_list = (const char **)
 466     bfd_malloc ((vec_length + 1) * sizeof (char **));
 467   if (name_list == NULL)
 468     return NULL;
 469
 470   /* Point the list at each of the names.  */
 471   name_ptr = name_list;
 472   for (app = bfd_archures_list; *app != NULL; app++)
 473     {
 474       const bfd_arch_info_type *ap;
 475       for (ap = *app; ap != NULL; ap = ap->next)
 476         {
 477           *name_ptr = ap->printable_name;
 478           name_ptr++;
 479         }
 480     }
 481   *name_ptr = NULL;
 482
 483   return name_list;
 484 }
 485
 486 /*
 487 FUNCTION
 488         bfd_arch_get_compatible
 489
 490 SYNOPSIS
 491         const bfd_arch_info_type *bfd_arch_get_compatible(
 492                 const bfd *abfd,
 493                 const bfd *bbfd);
 494
 495 DESCRIPTION
 496         Determine whether two BFDs'
 497         architectures and machine types are compatible.  Calculates
 498         the lowest common denominator between the two architectures
 499         and machine types implied by the BFDs and returns a pointer to
 500         an <<arch_info>> structure describing the compatible machine.
 501 */
 502
 503 const bfd_arch_info_type *
 504 bfd_arch_get_compatible (abfd, bbfd)
 505      const bfd *abfd;
 506      const bfd *bbfd;
 507 {
 508   /* If either architecture is unknown, then all we can do is assume
 509      the user knows what he's doing.  */
 510   if (abfd->arch_info->arch == bfd_arch_unknown)
 511     return bbfd->arch_info;
 512   if (bbfd->arch_info->arch == bfd_arch_unknown)
 513     return abfd->arch_info;
 514
 515   /* Otherwise architecture-specific code has to decide.  */
 516   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 517 }
 518
 519 /*
 520 INTERNAL_DEFINITION
 521         bfd_default_arch_struct
 522
 523 DESCRIPTION
 524         The <<bfd_default_arch_struct>> is an item of
 525         <<bfd_arch_info_type>> which has been initialized to a fairly
 526         generic state.  A BFD starts life by pointing to this
 527         structure, until the correct back end has determined the real
 528         architecture of the file.
 529
 530 .extern const bfd_arch_info_type bfd_default_arch_struct;
 531 */
 532
 533 const bfd_arch_info_type bfd_default_arch_struct = {
 534   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 535   bfd_default_compatible,
 536   bfd_default_scan,
 537   0,
 538 };
 539
 540 /*
 541 FUNCTION
 542         bfd_set_arch_info
 543
 544 SYNOPSIS
 545         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 546
 547 DESCRIPTION
 548         Set the architecture info of @var{abfd} to @var{arg}.
 549 */
 550
 551 void
 552 bfd_set_arch_info (abfd, arg)
 553      bfd *abfd;
 554      const bfd_arch_info_type *arg;
 555 {
 556   abfd->arch_info = arg;
 557 }
 558
 559 /*
 560 INTERNAL_FUNCTION
 561         bfd_default_set_arch_mach
 562
 563 SYNOPSIS
 564         boolean bfd_default_set_arch_mach(bfd *abfd,
 565                 enum bfd_architecture arch,
 566                 unsigned long mach);
 567
 568 DESCRIPTION
 569         Set the architecture and machine type in BFD @var{abfd}
 570         to @var{arch} and @var{mach}.  Find the correct
 571         pointer to a structure and insert it into the <<arch_info>>
 572         pointer.
 573 */
 574
 575 boolean
 576 bfd_default_set_arch_mach (abfd, arch, mach)
 577      bfd *abfd;
 578      enum bfd_architecture arch;
 579      unsigned long mach;
 580 {
 581   const bfd_arch_info_type * const *app, *ap;
 582
 583   for (app = bfd_archures_list; *app != NULL; app++)
 584     {
 585       for (ap = *app; ap != NULL; ap = ap->next)
 586         {
 587           if (ap->arch == arch
 588               && (ap->mach == mach
 589                   || (mach == 0 && ap->the_default)))
 590             {
 591               abfd->arch_info = ap;
 592               return true;
 593             }
 594         }
 595     }
 596
 597   abfd->arch_info = &bfd_default_arch_struct;
 598   bfd_set_error (bfd_error_bad_value);
 599   return false;
 600 }
 601
 602 /*
 603 FUNCTION
 604         bfd_get_arch
 605
 606 SYNOPSIS
 607         enum bfd_architecture bfd_get_arch(bfd *abfd);
 608
 609 DESCRIPTION
 610         Return the enumerated type which describes the BFD @var{abfd}'s
 611         architecture.
 612 */
 613
 614 enum bfd_architecture
 615 bfd_get_arch (abfd)
 616      bfd *abfd;
 617 {
 618   return abfd->arch_info->arch;
 619 }
 620
 621 /*
 622 FUNCTION
 623         bfd_get_mach
 624
 625 SYNOPSIS
 626         unsigned long bfd_get_mach(bfd *abfd);
 627
 628 DESCRIPTION
 629         Return the long type which describes the BFD @var{abfd}'s
 630         machine.
 631 */
 632
 633 unsigned long
 634 bfd_get_mach (abfd)
 635      bfd *abfd;
 636 {
 637   return abfd->arch_info->mach;
 638 }
 639
 640 /*
 641 FUNCTION
 642         bfd_arch_bits_per_byte
 643
 644 SYNOPSIS
 645         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 646
 647 DESCRIPTION
 648         Return the number of bits in one of the BFD @var{abfd}'s
 649         architecture's bytes.
 650 */
 651
 652 unsigned int
 653 bfd_arch_bits_per_byte (abfd)
 654      bfd *abfd;
 655 {
 656   return abfd->arch_info->bits_per_byte;
 657 }
 658
 659 /*
 660 FUNCTION
 661         bfd_arch_bits_per_address
 662
 663 SYNOPSIS
 664         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 665
 666 DESCRIPTION
 667         Return the number of bits in one of the BFD @var{abfd}'s
 668         architecture's addresses.
 669 */
 670
 671 unsigned int
 672 bfd_arch_bits_per_address (abfd)
 673      bfd *abfd;
 674 {
 675   return abfd->arch_info->bits_per_address;
 676 }
 677
 678 /*
 679 INTERNAL_FUNCTION
 680         bfd_default_compatible
 681
 682 SYNOPSIS
 683         const bfd_arch_info_type *bfd_default_compatible
 684         (const bfd_arch_info_type *a,
 685         const bfd_arch_info_type *b);
 686
 687 DESCRIPTION
 688         The default function for testing for compatibility.
 689 */
 690
 691 const bfd_arch_info_type *
 692 bfd_default_compatible (a, b)
 693      const bfd_arch_info_type *a;
 694      const bfd_arch_info_type *b;
 695 {
 696   if (a->arch != b->arch)
 697     return NULL;
 698
 699   if (a->mach > b->mach)
 700     return a;
 701
 702   if (b->mach > a->mach)
 703     return b;
 704
 705   return a;
 706 }
 707
 708 /*
 709 INTERNAL_FUNCTION
 710         bfd_default_scan
 711
 712 SYNOPSIS
 713         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 714
 715 DESCRIPTION
 716         The default function for working out whether this is an
 717         architecture hit and a machine hit.
 718 */
 719
 720 boolean
 721 bfd_default_scan (info, string)
 722      const struct bfd_arch_info *info;
 723      const char *string;
 724 {
 725   const char *ptr_src;
 726   const char *ptr_tst;
 727   unsigned long number;
 728   enum bfd_architecture arch;
 729   const char *printable_name_colon;
 730
 731   /* Exact match of the architecture name (ARCH_NAME) and also the
 732      default architecture?  */
 733   if (strcasecmp (string, info->arch_name) == 0
 734       && info->the_default)
 735     return true;
 736
 737   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 738   if (strcasecmp (string, info->printable_name) == 0)
 739     return true;
 740
 741   /* Given that printable_name contains no colon, attempt to match:
 742      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 743   printable_name_colon = strchr (info->printable_name, ':');
 744   if (printable_name_colon == NULL)
 745     {
 746       int strlen_arch_name = strlen (info->arch_name);
 747       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 748         {
 749           if (string[strlen_arch_name] == ':')
 750             {
 751               if (strcasecmp (string + strlen_arch_name + 1,
 752                               info->printable_name) == 0)
 753                 return true;
 754             }
 755           else
 756             {
 757               if (strcasecmp (string + strlen_arch_name,
 758                               info->printable_name) == 0)
 759                 return true;
 760             }
 761         }
 762     }
 763
 764   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 765      Attempt to match: <arch> <mach>?  */
 766   if (printable_name_colon != NULL)
 767     {
 768       int colon_index = printable_name_colon - info->printable_name;
 769       if (strncasecmp (string, info->printable_name, colon_index) == 0
 770           && strcasecmp (string + colon_index,
 771                          info->printable_name + colon_index + 1) == 0)
 772         return true;
 773     }
 774
 775   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 776      attempt to match just <mach>, it could be ambigious.  This test
 777      is left until later.  */
 778
 779   /* NOTE: The below is retained for compatibility only.  Please do
 780      not add to this code.  */
 781
 782   /* See how much of the supplied string matches with the
 783      architecture, eg the string m68k:68020 would match the 68k entry
 784      up to the :, then we get left with the machine number.  */
 785
 786   for (ptr_src = string, ptr_tst = info->arch_name;
 787        *ptr_src && *ptr_tst;
 788        ptr_src++, ptr_tst++)
 789     {
 790       if (*ptr_src != *ptr_tst)
 791         break;
 792     }
 793
 794   /* Chewed up as much of the architecture as will match, skip any
 795      colons.  */
 796   if (*ptr_src == ':')
 797     ptr_src++;
 798
 799   if (*ptr_src == 0)
 800     {
 801       /* Nothing more, then only keep this one if it is the default
 802          machine for this architecture.  */
 803       return info->the_default;
 804     }
 805
 806   number = 0;
 807   while (isdigit ((unsigned char) *ptr_src))
 808     {
 809       number = number * 10 + *ptr_src - '0';
 810       ptr_src++;
 811     }
 812
 813   /* NOTE: The below is retained for compatibility only.
 814      PLEASE DO NOT ADD TO THIS CODE.  */
 815
 816   switch (number)
 817     {
 818       /* FIXME: These are needed to parse IEEE objects.  */
 819       /* The following seven case's are here only for compatibility with
 820          older binutils (at least IEEE objects from binutils 2.9.1 require
 821          them).  */
 822     case bfd_mach_m68000:
 823     case bfd_mach_m68010:
 824     case bfd_mach_m68020:
 825     case bfd_mach_m68030:
 826     case bfd_mach_m68040:
 827     case bfd_mach_m68060:
 828     case bfd_mach_cpu32:
 829       arch = bfd_arch_m68k;
 830       break;
 831     case 68000:
 832       arch = bfd_arch_m68k;
 833       number = bfd_mach_m68000;
 834       break;
 835     case 68010:
 836       arch = bfd_arch_m68k;
 837       number = bfd_mach_m68010;
 838       break;
 839     case 68020:
 840       arch = bfd_arch_m68k;
 841       number = bfd_mach_m68020;
 842       break;
 843     case 68030:
 844       arch = bfd_arch_m68k;
 845       number = bfd_mach_m68030;
 846       break;
 847     case 68040:
 848       arch = bfd_arch_m68k;
 849       number = bfd_mach_m68040;
 850       break;
 851     case 68060:
 852       arch = bfd_arch_m68k;
 853       number = bfd_mach_m68060;
 854       break;
 855     case 68332:
 856       arch = bfd_arch_m68k;
 857       number = bfd_mach_cpu32;
 858       break;
 859
 860     case 32000:
 861       arch = bfd_arch_we32k;
 862       break;
 863
 864     case 3000:
 865       arch = bfd_arch_mips;
 866       number = bfd_mach_mips3000;
 867       break;
 868
 869     case 4000:
 870       arch = bfd_arch_mips;
 871       number = bfd_mach_mips4000;
 872       break;
 873
 874     case 6000:
 875       arch = bfd_arch_rs6000;
 876       break;
 877
 878     case 7410:
 879       arch = bfd_arch_sh;
 880       number = bfd_mach_sh_dsp;
 881       break;
 882
 883     case 7708:
 884       arch = bfd_arch_sh;
 885       number = bfd_mach_sh3;
 886       break;
 887
 888     case 7729:
 889       arch = bfd_arch_sh;
 890       number = bfd_mach_sh3_dsp;
 891       break;
 892
 893     case 7750:
 894       arch = bfd_arch_sh;
 895       number = bfd_mach_sh4;
 896       break;
 897
 898     default:
 899       return false;
 900     }
 901
 902   if (arch != info->arch)
 903     return false;
 904
 905   if (number != info->mach)
 906     return false;
 907
 908   return true;
 909 }
 910
 911 /*
 912 FUNCTION
 913         bfd_get_arch_info
 914
 915 SYNOPSIS
 916         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 917
 918 DESCRIPTION
 919         Return the architecture info struct in @var{abfd}.
 920 */
 921
 922 const bfd_arch_info_type *
 923 bfd_get_arch_info (abfd)
 924      bfd *abfd;
 925 {
 926   return abfd->arch_info;
 927 }
 928
 929 /*
 930 FUNCTION
 931         bfd_lookup_arch
 932
 933 SYNOPSIS
 934         const bfd_arch_info_type *bfd_lookup_arch
 935                 (enum bfd_architecture
 936                 arch,
 937                 unsigned long machine);
 938
 939 DESCRIPTION
 940         Look for the architecure info structure which matches the
 941         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 942         machine/architecture structure which marks itself as the
 943         default.
 944 */
 945
 946 const bfd_arch_info_type *
 947 bfd_lookup_arch (arch, machine)
 948      enum bfd_architecture arch;
 949      unsigned long machine;
 950 {
 951   const bfd_arch_info_type * const *app, *ap;
 952
 953   for (app = bfd_archures_list; *app != NULL; app++)
 954     {
 955       for (ap = *app; ap != NULL; ap = ap->next)
 956         {
 957           if (ap->arch == arch
 958               && (ap->mach == machine
 959                   || (machine == 0 && ap->the_default)))
 960             return ap;
 961         }
 962     }
 963
 964   return NULL;
 965 }
 966
 967 /*
 968 FUNCTION
 969         bfd_printable_arch_mach
 970
 971 SYNOPSIS
 972         const char *bfd_printable_arch_mach
 973                 (enum bfd_architecture arch, unsigned long machine);
 974
 975 DESCRIPTION
 976         Return a printable string representing the architecture and
 977         machine type.
 978
 979         This routine is depreciated.
 980 */
 981
 982 const char *
 983 bfd_printable_arch_mach (arch, machine)
 984      enum bfd_architecture arch;
 985      unsigned long machine;
 986 {
 987   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
 988
 989   if (ap)
 990     return ap->printable_name;
 991   return "UNKNOWN!";
 992 }
 993
 994 /*
 995 FUNCTION
 996         bfd_octets_per_byte
 997
 998 SYNOPSIS
 999         unsigned int bfd_octets_per_byte(bfd *abfd);
1000
1001 DESCRIPTION
1002         Return the number of octets (8-bit quantities) per target byte
1003         (minimum addressable unit).  In most cases, this will be one, but some
1004         DSP targets have 16, 32, or even 48 bits per byte.
1005 */
1006
1007 unsigned int
1008 bfd_octets_per_byte (abfd)
1009      bfd *abfd;
1010 {
1011   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1012                                         bfd_get_mach (abfd));
1013 }
1014
1015 /*
1016 FUNCTION
1017         bfd_arch_mach_octets_per_byte
1018
1019 SYNOPSIS
1020         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1021                                                    unsigned long machine);
1022
1023 DESCRIPTION
1024         See bfd_octets_per_byte.
1025
1026         This routine is provided for those cases where a bfd * is not
1027         available
1028 */
1029
1030 unsigned int
1031 bfd_arch_mach_octets_per_byte (arch, mach)
1032      enum bfd_architecture arch;
1033      unsigned long mach;
1034 {
1035   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1036
1037   if (ap)
1038     return ap->bits_per_byte / 8;
1039   return 1;
1040 }