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_s390,      {* IBM s390 *}
 252 .#define bfd_mach_s390_esa      0
 253 .#define bfd_mach_s390_esame    1
 254 .  bfd_arch_last
 255 .  };
 256 */
 257
 258 /*
 259 SUBSECTION
 260         bfd_arch_info
 261
 262 DESCRIPTION
 263         This structure contains information on architectures for use
 264         within BFD.
 265
 266 .
 267 .typedef struct bfd_arch_info
 268 .{
 269 .  int bits_per_word;
 270 .  int bits_per_address;
 271 .  int bits_per_byte;
 272 .  enum bfd_architecture arch;
 273 .  unsigned long mach;
 274 .  const char *arch_name;
 275 .  const char *printable_name;
 276 .  unsigned int section_align_power;
 277 .  {* True if this is the default machine for the architecture.  *}
 278 .  boolean the_default;
 279 .  const struct bfd_arch_info * (*compatible)
 280 .       PARAMS ((const struct bfd_arch_info *a,
 281 .                const struct bfd_arch_info *b));
 282 .
 283 .  boolean (*scan) PARAMS ((const struct bfd_arch_info *, const char *));
 284 .
 285 .  const struct bfd_arch_info *next;
 286 .} bfd_arch_info_type;
 287 */
 288
 289 extern const bfd_arch_info_type bfd_a29k_arch;
 290 extern const bfd_arch_info_type bfd_alpha_arch;
 291 extern const bfd_arch_info_type bfd_arc_arch;
 292 extern const bfd_arch_info_type bfd_arm_arch;
 293 extern const bfd_arch_info_type bfd_cris_arch;
 294 extern const bfd_arch_info_type bfd_d10v_arch;
 295 extern const bfd_arch_info_type bfd_d30v_arch;
 296 extern const bfd_arch_info_type bfd_h8300_arch;
 297 extern const bfd_arch_info_type bfd_h8500_arch;
 298 extern const bfd_arch_info_type bfd_hppa_arch;
 299 extern const bfd_arch_info_type bfd_i370_arch;
 300 extern const bfd_arch_info_type bfd_i386_arch;
 301 extern const bfd_arch_info_type bfd_i860_arch;
 302 extern const bfd_arch_info_type bfd_i960_arch;
 303 extern const bfd_arch_info_type bfd_m32r_arch;
 304 extern const bfd_arch_info_type bfd_m68hc11_arch;
 305 extern const bfd_arch_info_type bfd_m68hc12_arch;
 306 extern const bfd_arch_info_type bfd_m68k_arch;
 307 extern const bfd_arch_info_type bfd_m88k_arch;
 308 extern const bfd_arch_info_type bfd_mips_arch;
 309 extern const bfd_arch_info_type bfd_mn10200_arch;
 310 extern const bfd_arch_info_type bfd_mn10300_arch;
 311 extern const bfd_arch_info_type bfd_powerpc_arch;
 312 extern const bfd_arch_info_type bfd_rs6000_arch;
 313 extern const bfd_arch_info_type bfd_pj_arch;
 314 extern const bfd_arch_info_type bfd_sh_arch;
 315 extern const bfd_arch_info_type bfd_sparc_arch;
 316 extern const bfd_arch_info_type bfd_tic30_arch;
 317 extern const bfd_arch_info_type bfd_tic54x_arch;
 318 extern const bfd_arch_info_type bfd_tic80_arch;
 319 extern const bfd_arch_info_type bfd_vax_arch;
 320 extern const bfd_arch_info_type bfd_we32k_arch;
 321 extern const bfd_arch_info_type bfd_z8k_arch;
 322 extern const bfd_arch_info_type bfd_ns32k_arch;
 323 extern const bfd_arch_info_type bfd_w65_arch;
 324 extern const bfd_arch_info_type bfd_v850_arch;
 325 extern const bfd_arch_info_type bfd_fr30_arch;
 326 extern const bfd_arch_info_type bfd_mcore_arch;
 327 extern const bfd_arch_info_type bfd_avr_arch;
 328 extern const bfd_arch_info_type bfd_ia64_arch;
 329 extern const bfd_arch_info_type bfd_s390_arch;
 330
 331 static const bfd_arch_info_type * const bfd_archures_list[] = {
 332 #ifdef SELECT_ARCHITECTURES
 333   SELECT_ARCHITECTURES,
 334 #else
 335   &bfd_a29k_arch,
 336   &bfd_alpha_arch,
 337   &bfd_arc_arch,
 338   &bfd_arm_arch,
 339   &bfd_cris_arch,
 340   &bfd_d10v_arch,
 341   &bfd_d30v_arch,
 342   &bfd_h8300_arch,
 343   &bfd_h8500_arch,
 344   &bfd_hppa_arch,
 345   &bfd_i370_arch,
 346   &bfd_i386_arch,
 347   &bfd_i860_arch,
 348   &bfd_i960_arch,
 349   &bfd_m32r_arch,
 350   &bfd_m68hc11_arch,
 351   &bfd_m68hc12_arch,
 352   &bfd_m68k_arch,
 353   &bfd_m88k_arch,
 354   &bfd_mips_arch,
 355   &bfd_mn10200_arch,
 356   &bfd_mn10300_arch,
 357   &bfd_powerpc_arch,
 358   &bfd_rs6000_arch,
 359   &bfd_sh_arch,
 360   &bfd_sparc_arch,
 361   &bfd_tic30_arch,
 362   &bfd_tic54x_arch,
 363   &bfd_tic80_arch,
 364   &bfd_vax_arch,
 365   &bfd_we32k_arch,
 366   &bfd_z8k_arch,
 367   &bfd_ns32k_arch,
 368   &bfd_w65_arch,
 369   &bfd_v850_arch,
 370   &bfd_fr30_arch,
 371   &bfd_mcore_arch,
 372   &bfd_avr_arch,
 373   &bfd_ia64_arch,
 374   &bfd_s390_arch,
 375 #endif
 376   0
 377 };
 378
 379 /*
 380 FUNCTION
 381         bfd_printable_name
 382
 383 SYNOPSIS
 384         const char *bfd_printable_name(bfd *abfd);
 385
 386 DESCRIPTION
 387         Return a printable string representing the architecture and machine
 388         from the pointer to the architecture info structure.
 389
 390 */
 391
 392 const char *
 393 bfd_printable_name (abfd)
 394      bfd *abfd;
 395 {
 396   return abfd->arch_info->printable_name;
 397 }
 398
 399 /*
 400 FUNCTION
 401         bfd_scan_arch
 402
 403 SYNOPSIS
 404         const bfd_arch_info_type *bfd_scan_arch(const char *string);
 405
 406 DESCRIPTION
 407         Figure out if BFD supports any cpu which could be described with
 408         the name @var{string}.  Return a pointer to an <<arch_info>>
 409         structure if a machine is found, otherwise NULL.
 410 */
 411
 412 const bfd_arch_info_type *
 413 bfd_scan_arch (string)
 414      const char *string;
 415 {
 416   const bfd_arch_info_type * const *app, *ap;
 417
 418   /* Look through all the installed architectures.  */
 419   for (app = bfd_archures_list; *app != NULL; app++)
 420     {
 421       for (ap = *app; ap != NULL; ap = ap->next)
 422         {
 423           if (ap->scan (ap, string))
 424             return ap;
 425         }
 426     }
 427
 428   return NULL;
 429 }
 430
 431 /*
 432 FUNCTION
 433         bfd_arch_list
 434
 435 SYNOPSIS
 436         const char **bfd_arch_list(void);
 437
 438 DESCRIPTION
 439         Return a freshly malloced NULL-terminated vector of the names
 440         of all the valid BFD architectures.  Do not modify the names.
 441 */
 442
 443 const char **
 444 bfd_arch_list ()
 445 {
 446   int vec_length = 0;
 447   const char **name_ptr;
 448   const char **name_list;
 449   const bfd_arch_info_type * const *app;
 450
 451   /* Determine the number of architectures.  */
 452   vec_length = 0;
 453   for (app = bfd_archures_list; *app != NULL; app++)
 454     {
 455       const bfd_arch_info_type *ap;
 456       for (ap = *app; ap != NULL; ap = ap->next)
 457         {
 458           vec_length++;
 459         }
 460     }
 461
 462   name_list = (const char **)
 463     bfd_malloc ((vec_length + 1) * sizeof (char **));
 464   if (name_list == NULL)
 465     return NULL;
 466
 467   /* Point the list at each of the names.  */
 468   name_ptr = name_list;
 469   for (app = bfd_archures_list; *app != NULL; app++)
 470     {
 471       const bfd_arch_info_type *ap;
 472       for (ap = *app; ap != NULL; ap = ap->next)
 473         {
 474           *name_ptr = ap->printable_name;
 475           name_ptr++;
 476         }
 477     }
 478   *name_ptr = NULL;
 479
 480   return name_list;
 481 }
 482
 483 /*
 484 FUNCTION
 485         bfd_arch_get_compatible
 486
 487 SYNOPSIS
 488         const bfd_arch_info_type *bfd_arch_get_compatible(
 489                 const bfd *abfd,
 490                 const bfd *bbfd);
 491
 492 DESCRIPTION
 493         Determine whether two BFDs'
 494         architectures and machine types are compatible.  Calculates
 495         the lowest common denominator between the two architectures
 496         and machine types implied by the BFDs and returns a pointer to
 497         an <<arch_info>> structure describing the compatible machine.
 498 */
 499
 500 const bfd_arch_info_type *
 501 bfd_arch_get_compatible (abfd, bbfd)
 502      const bfd *abfd;
 503      const bfd *bbfd;
 504 {
 505   /* If either architecture is unknown, then all we can do is assume
 506      the user knows what he's doing.  */
 507   if (abfd->arch_info->arch == bfd_arch_unknown)
 508     return bbfd->arch_info;
 509   if (bbfd->arch_info->arch == bfd_arch_unknown)
 510     return abfd->arch_info;
 511
 512   /* Otherwise architecture-specific code has to decide.  */
 513   return abfd->arch_info->compatible (abfd->arch_info, bbfd->arch_info);
 514 }
 515
 516 /*
 517 INTERNAL_DEFINITION
 518         bfd_default_arch_struct
 519
 520 DESCRIPTION
 521         The <<bfd_default_arch_struct>> is an item of
 522         <<bfd_arch_info_type>> which has been initialized to a fairly
 523         generic state.  A BFD starts life by pointing to this
 524         structure, until the correct back end has determined the real
 525         architecture of the file.
 526
 527 .extern const bfd_arch_info_type bfd_default_arch_struct;
 528 */
 529
 530 const bfd_arch_info_type bfd_default_arch_struct = {
 531   32, 32, 8, bfd_arch_unknown, 0, "unknown", "unknown", 2, true,
 532   bfd_default_compatible,
 533   bfd_default_scan,
 534   0,
 535 };
 536
 537 /*
 538 FUNCTION
 539         bfd_set_arch_info
 540
 541 SYNOPSIS
 542         void bfd_set_arch_info(bfd *abfd, const bfd_arch_info_type *arg);
 543
 544 DESCRIPTION
 545         Set the architecture info of @var{abfd} to @var{arg}.
 546 */
 547
 548 void
 549 bfd_set_arch_info (abfd, arg)
 550      bfd *abfd;
 551      const bfd_arch_info_type *arg;
 552 {
 553   abfd->arch_info = arg;
 554 }
 555
 556 /*
 557 INTERNAL_FUNCTION
 558         bfd_default_set_arch_mach
 559
 560 SYNOPSIS
 561         boolean bfd_default_set_arch_mach(bfd *abfd,
 562                 enum bfd_architecture arch,
 563                 unsigned long mach);
 564
 565 DESCRIPTION
 566         Set the architecture and machine type in BFD @var{abfd}
 567         to @var{arch} and @var{mach}.  Find the correct
 568         pointer to a structure and insert it into the <<arch_info>>
 569         pointer.
 570 */
 571
 572 boolean
 573 bfd_default_set_arch_mach (abfd, arch, mach)
 574      bfd *abfd;
 575      enum bfd_architecture arch;
 576      unsigned long mach;
 577 {
 578   const bfd_arch_info_type * const *app, *ap;
 579
 580   for (app = bfd_archures_list; *app != NULL; app++)
 581     {
 582       for (ap = *app; ap != NULL; ap = ap->next)
 583         {
 584           if (ap->arch == arch
 585               && (ap->mach == mach
 586                   || (mach == 0 && ap->the_default)))
 587             {
 588               abfd->arch_info = ap;
 589               return true;
 590             }
 591         }
 592     }
 593
 594   abfd->arch_info = &bfd_default_arch_struct;
 595   bfd_set_error (bfd_error_bad_value);
 596   return false;
 597 }
 598
 599 /*
 600 FUNCTION
 601         bfd_get_arch
 602
 603 SYNOPSIS
 604         enum bfd_architecture bfd_get_arch(bfd *abfd);
 605
 606 DESCRIPTION
 607         Return the enumerated type which describes the BFD @var{abfd}'s
 608         architecture.
 609 */
 610
 611 enum bfd_architecture
 612 bfd_get_arch (abfd)
 613      bfd *abfd;
 614 {
 615   return abfd->arch_info->arch;
 616 }
 617
 618 /*
 619 FUNCTION
 620         bfd_get_mach
 621
 622 SYNOPSIS
 623         unsigned long bfd_get_mach(bfd *abfd);
 624
 625 DESCRIPTION
 626         Return the long type which describes the BFD @var{abfd}'s
 627         machine.
 628 */
 629
 630 unsigned long
 631 bfd_get_mach (abfd)
 632      bfd *abfd;
 633 {
 634   return abfd->arch_info->mach;
 635 }
 636
 637 /*
 638 FUNCTION
 639         bfd_arch_bits_per_byte
 640
 641 SYNOPSIS
 642         unsigned int bfd_arch_bits_per_byte(bfd *abfd);
 643
 644 DESCRIPTION
 645         Return the number of bits in one of the BFD @var{abfd}'s
 646         architecture's bytes.
 647 */
 648
 649 unsigned int
 650 bfd_arch_bits_per_byte (abfd)
 651      bfd *abfd;
 652 {
 653   return abfd->arch_info->bits_per_byte;
 654 }
 655
 656 /*
 657 FUNCTION
 658         bfd_arch_bits_per_address
 659
 660 SYNOPSIS
 661         unsigned int bfd_arch_bits_per_address(bfd *abfd);
 662
 663 DESCRIPTION
 664         Return the number of bits in one of the BFD @var{abfd}'s
 665         architecture's addresses.
 666 */
 667
 668 unsigned int
 669 bfd_arch_bits_per_address (abfd)
 670      bfd *abfd;
 671 {
 672   return abfd->arch_info->bits_per_address;
 673 }
 674
 675 /*
 676 INTERNAL_FUNCTION
 677         bfd_default_compatible
 678
 679 SYNOPSIS
 680         const bfd_arch_info_type *bfd_default_compatible
 681         (const bfd_arch_info_type *a,
 682         const bfd_arch_info_type *b);
 683
 684 DESCRIPTION
 685         The default function for testing for compatibility.
 686 */
 687
 688 const bfd_arch_info_type *
 689 bfd_default_compatible (a, b)
 690      const bfd_arch_info_type *a;
 691      const bfd_arch_info_type *b;
 692 {
 693   if (a->arch != b->arch)
 694     return NULL;
 695
 696   if (a->mach > b->mach)
 697     return a;
 698
 699   if (b->mach > a->mach)
 700     return b;
 701
 702   return a;
 703 }
 704
 705 /*
 706 INTERNAL_FUNCTION
 707         bfd_default_scan
 708
 709 SYNOPSIS
 710         boolean bfd_default_scan(const struct bfd_arch_info *info, const char *string);
 711
 712 DESCRIPTION
 713         The default function for working out whether this is an
 714         architecture hit and a machine hit.
 715 */
 716
 717 boolean
 718 bfd_default_scan (info, string)
 719      const struct bfd_arch_info *info;
 720      const char *string;
 721 {
 722   const char *ptr_src;
 723   const char *ptr_tst;
 724   unsigned long number;
 725   enum bfd_architecture arch;
 726   const char *printable_name_colon;
 727
 728   /* Exact match of the architecture name (ARCH_NAME) and also the
 729      default architecture?  */
 730   if (strcasecmp (string, info->arch_name) == 0
 731       && info->the_default)
 732     return true;
 733
 734   /* Exact match of the machine name (PRINTABLE_NAME)?  */
 735   if (strcasecmp (string, info->printable_name) == 0)
 736     return true;
 737
 738   /* Given that printable_name contains no colon, attempt to match:
 739      ARCH_NAME [ ":" ] PRINTABLE_NAME?  */
 740   printable_name_colon = strchr (info->printable_name, ':');
 741   if (printable_name_colon == NULL)
 742     {
 743       int strlen_arch_name = strlen (info->arch_name);
 744       if (strncasecmp (string, info->arch_name, strlen_arch_name) == 0)
 745         {
 746           if (string[strlen_arch_name] == ':')
 747             {
 748               if (strcasecmp (string + strlen_arch_name + 1,
 749                               info->printable_name) == 0)
 750                 return true;
 751             }
 752           else
 753             {
 754               if (strcasecmp (string + strlen_arch_name,
 755                               info->printable_name) == 0)
 756                 return true;
 757             }
 758         }
 759     }
 760
 761   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>;
 762      Attempt to match: <arch> <mach>?  */
 763   if (printable_name_colon != NULL)
 764     {
 765       int colon_index = printable_name_colon - info->printable_name;
 766       if (strncasecmp (string, info->printable_name, colon_index) == 0
 767           && strcasecmp (string + colon_index,
 768                          info->printable_name + colon_index + 1) == 0)
 769         return true;
 770     }
 771
 772   /* Given that PRINTABLE_NAME has the form: <arch> ":" <mach>; Do not
 773      attempt to match just <mach>, it could be ambigious.  This test
 774      is left until later.  */
 775
 776   /* NOTE: The below is retained for compatibility only.  Please do
 777      not add to this code.  */
 778
 779   /* See how much of the supplied string matches with the
 780      architecture, eg the string m68k:68020 would match the 68k entry
 781      up to the :, then we get left with the machine number.  */
 782
 783   for (ptr_src = string, ptr_tst = info->arch_name;
 784        *ptr_src && *ptr_tst;
 785        ptr_src++, ptr_tst++)
 786     {
 787       if (*ptr_src != *ptr_tst)
 788         break;
 789     }
 790
 791   /* Chewed up as much of the architecture as will match, skip any
 792      colons.  */
 793   if (*ptr_src == ':')
 794     ptr_src++;
 795
 796   if (*ptr_src == 0)
 797     {
 798       /* Nothing more, then only keep this one if it is the default
 799          machine for this architecture.  */
 800       return info->the_default;
 801     }
 802
 803   number = 0;
 804   while (isdigit ((unsigned char) *ptr_src))
 805     {
 806       number = number * 10 + *ptr_src - '0';
 807       ptr_src++;
 808     }
 809
 810   /* NOTE: The below is retained for compatibility only.
 811      PLEASE DO NOT ADD TO THIS CODE.  */
 812
 813   switch (number)
 814     {
 815       /* FIXME: These are needed to parse IEEE objects.  */
 816       /* The following seven case's are here only for compatibility with
 817          older binutils (at least IEEE objects from binutils 2.9.1 require
 818          them).  */
 819     case bfd_mach_m68000:
 820     case bfd_mach_m68010:
 821     case bfd_mach_m68020:
 822     case bfd_mach_m68030:
 823     case bfd_mach_m68040:
 824     case bfd_mach_m68060:
 825     case bfd_mach_cpu32:
 826       arch = bfd_arch_m68k;
 827       break;
 828     case 68000:
 829       arch = bfd_arch_m68k;
 830       number = bfd_mach_m68000;
 831       break;
 832     case 68010:
 833       arch = bfd_arch_m68k;
 834       number = bfd_mach_m68010;
 835       break;
 836     case 68020:
 837       arch = bfd_arch_m68k;
 838       number = bfd_mach_m68020;
 839       break;
 840     case 68030:
 841       arch = bfd_arch_m68k;
 842       number = bfd_mach_m68030;
 843       break;
 844     case 68040:
 845       arch = bfd_arch_m68k;
 846       number = bfd_mach_m68040;
 847       break;
 848     case 68060:
 849       arch = bfd_arch_m68k;
 850       number = bfd_mach_m68060;
 851       break;
 852     case 68332:
 853       arch = bfd_arch_m68k;
 854       number = bfd_mach_cpu32;
 855       break;
 856
 857     case 32000:
 858       arch = bfd_arch_we32k;
 859       break;
 860
 861     case 3000:
 862       arch = bfd_arch_mips;
 863       number = bfd_mach_mips3000;
 864       break;
 865
 866     case 4000:
 867       arch = bfd_arch_mips;
 868       number = bfd_mach_mips4000;
 869       break;
 870
 871     case 6000:
 872       arch = bfd_arch_rs6000;
 873       break;
 874
 875     case 7410:
 876       arch = bfd_arch_sh;
 877       number = bfd_mach_sh_dsp;
 878       break;
 879
 880     case 7708:
 881       arch = bfd_arch_sh;
 882       number = bfd_mach_sh3;
 883       break;
 884
 885     case 7729:
 886       arch = bfd_arch_sh;
 887       number = bfd_mach_sh3_dsp;
 888       break;
 889
 890     case 7750:
 891       arch = bfd_arch_sh;
 892       number = bfd_mach_sh4;
 893       break;
 894
 895     default:
 896       return false;
 897     }
 898
 899   if (arch != info->arch)
 900     return false;
 901
 902   if (number != info->mach)
 903     return false;
 904
 905   return true;
 906 }
 907
 908 /*
 909 FUNCTION
 910         bfd_get_arch_info
 911
 912 SYNOPSIS
 913         const bfd_arch_info_type * bfd_get_arch_info(bfd *abfd);
 914
 915 DESCRIPTION
 916         Return the architecture info struct in @var{abfd}.
 917 */
 918
 919 const bfd_arch_info_type *
 920 bfd_get_arch_info (abfd)
 921      bfd *abfd;
 922 {
 923   return abfd->arch_info;
 924 }
 925
 926 /*
 927 FUNCTION
 928         bfd_lookup_arch
 929
 930 SYNOPSIS
 931         const bfd_arch_info_type *bfd_lookup_arch
 932                 (enum bfd_architecture
 933                 arch,
 934                 unsigned long machine);
 935
 936 DESCRIPTION
 937         Look for the architecure info structure which matches the
 938         arguments @var{arch} and @var{machine}. A machine of 0 matches the
 939         machine/architecture structure which marks itself as the
 940         default.
 941 */
 942
 943 const bfd_arch_info_type *
 944 bfd_lookup_arch (arch, machine)
 945      enum bfd_architecture arch;
 946      unsigned long machine;
 947 {
 948   const bfd_arch_info_type * const *app, *ap;
 949
 950   for (app = bfd_archures_list; *app != NULL; app++)
 951     {
 952       for (ap = *app; ap != NULL; ap = ap->next)
 953         {
 954           if (ap->arch == arch
 955               && (ap->mach == machine
 956                   || (machine == 0 && ap->the_default)))
 957             return ap;
 958         }
 959     }
 960
 961   return NULL;
 962 }
 963
 964 /*
 965 FUNCTION
 966         bfd_printable_arch_mach
 967
 968 SYNOPSIS
 969         const char *bfd_printable_arch_mach
 970                 (enum bfd_architecture arch, unsigned long machine);
 971
 972 DESCRIPTION
 973         Return a printable string representing the architecture and
 974         machine type.
 975
 976         This routine is depreciated.
 977 */
 978
 979 const char *
 980 bfd_printable_arch_mach (arch, machine)
 981      enum bfd_architecture arch;
 982      unsigned long machine;
 983 {
 984   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, machine);
 985
 986   if (ap)
 987     return ap->printable_name;
 988   return "UNKNOWN!";
 989 }
 990
 991 /*
 992 FUNCTION
 993         bfd_octets_per_byte
 994
 995 SYNOPSIS
 996         unsigned int bfd_octets_per_byte(bfd *abfd);
 997
 998 DESCRIPTION
 999         Return the number of octets (8-bit quantities) per target byte
1000         (minimum addressable unit).  In most cases, this will be one, but some
1001         DSP targets have 16, 32, or even 48 bits per byte.
1002 */
1003
1004 unsigned int
1005 bfd_octets_per_byte (abfd)
1006      bfd *abfd;
1007 {
1008   return bfd_arch_mach_octets_per_byte (bfd_get_arch (abfd),
1009                                         bfd_get_mach (abfd));
1010 }
1011
1012 /*
1013 FUNCTION
1014         bfd_arch_mach_octets_per_byte
1015
1016 SYNOPSIS
1017         unsigned int bfd_arch_mach_octets_per_byte(enum bfd_architecture arch,
1018                                                    unsigned long machine);
1019
1020 DESCRIPTION
1021         See bfd_octets_per_byte.
1022
1023         This routine is provided for those cases where a bfd * is not
1024         available
1025 */
1026
1027 unsigned int
1028 bfd_arch_mach_octets_per_byte (arch, mach)
1029      enum bfd_architecture arch;
1030      unsigned long mach;
1031 {
1032   const bfd_arch_info_type *ap = bfd_lookup_arch (arch, mach);
1033
1034   if (ap)
1035     return ap->bits_per_byte / 8;
1036   return 1;
1037 }