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