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